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Scholars from a variety of fields study phenomena that can be described under the umbrella term of computer-mediated communication (CMC) (see also Internet studies). For example, many take a sociopsychological approach to CMC by examining how humans use "computers" (or digital media) to manage interpersonal interaction, form impressions and maintain relationships. These studies have often focused on the differences between online and offline interactions, though contemporary research is moving towards the view that CMC should be studied as embedded in everyday life. Another branch of CMC research examines the use of paralinguistic features such as emoticons, pragmatic rules such as turn-taking and the sequential analysis and organization of talk, and the various sociolects, styles, registers or sets of terminology specific to these environments (see Leet). The study of language in these contexts is typically based on text-based forms of CMC, and is sometimes referred to as "computer-mediated discourse analysis".
https://en.wikipedia.org/wiki?curid=320498
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He was then recommended by the Royal Society to be the astronomer for Captain William Parry’s second attempt to find a north-west passage. In April 1821, (Fisher’s ship) and were sent by the Admiralty to search for a passage along the west coast of the unknown Foxe Basin in northernmost Hudson Bay. Parry became the first to sail through Frozen Strait, and in late August it was decided to make winter quarters off southeast Melville Peninsula, at Winter Island. A portable observatory was set up ashore during the winter and numerous wide-ranging experiments were conducted. Among them were those of value to navigators in high latitudes, including comparative tests of compasses and numerous observations to determine refraction when stars were observed near the horizon in very cold weather. He also measured the velocity of sound, the contraction of a series of different metal bars at low temperatures, and the behaviours of various chemicals.
https://en.wikipedia.org/wiki?curid=27775421
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The late 1970s and 1980s saw a massive increase of AAC-related research, publications, and training as well the first national and international conferences. The International Society for Alternative and Augmentative Communication (ISAAC) was founded in 1983; its members included clinicians, teachers, rehabilitation engineers, researchers, and AAC users themselves. The organization has since played an important role in developing the field through its peer-reviewed journal, conferences, national chapters and its focus on AAC in developing countries. AAC became an area of professional specialization; a 1981 American Speech-Language-Hearing Association position paper, for example, recognized AAC as a field of practice for speech-language pathologists. At the same time, AAC users and family members played an increasing prominent role in the development of knowledge of AAC through their writing and presentations, by serving on committees and founding advocacy organizations.
https://en.wikipedia.org/wiki?curid=2106968
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Penta-silicene or pentasilicene denotes a silicon-based two-dimensional (2D) structure, a cousin of silicene, composed entirely of Si pentagons, in analogy with penta-graphene,a hypothetical variant of graphene. As of 2017 such a structure has only been obtained synthetically as one-dimensional nanoribbons (1D-NRs) grown on a silver (110) substrate. These nanoribbons adopt a highly ordered chiral arrangement in single- and/or double-strands (SNRs and DNRs, respectively). They were discovered in 2005 upon depositing Si onto the Ag(110) surface held at room temperature or at about 200 °C, and observed in Scanning Tunneling Microscopy. However, their unique atomic structure was unveiled only in 2016 through thorough density functional theory calculations and simulations of the STM images. It consists of alternating Si pentagons residing along a missing row formed at the silver surface during the growth process (see Fig. 1). In the Penta-silicene NRs each Si pentagonal moiety displays an envelope conformation whereby four atoms are coplanar and a fifth flap atom protrudes out of the surface. The pentagons, nevertheless, do not deviate much from regular ones (see Fig. 2). DNRs consist of two SNRs with the same handedness running in parallel along two missing rows separated by two Ag lattice constants (aAg = 4.1 Å) (see Fig. 3).
https://en.wikipedia.org/wiki?curid=55734964
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The Center for High Angular Resolution Astronomy (CHARA), built and operated by Georgia State University, is an interferometer formed from six 1 meter telescopes arranged along three axes with a maximum separation of 330 m. The light beams travel through vacuum pipes and are delayed and combined optically, requiring a building 100 meters long with movable mirrors on carts to keep the light in phase as the earth rotates. CHARA began scientific use in 2002 and "routine operations" in early 2004. In the infrared, the integrated image can resolve down to 0.0005 arcseconds. Six telescopes are in regular use for scientific observations and as of late 2005 imaging results are routinely acquired. The array captured the first image of the surface of a main sequence star other than the Sun published in early 2007.
https://en.wikipedia.org/wiki?curid=213583
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Madrasas were centers for many different religious and scientific studies and were the culmination of different institutions such as mosques based around religious studies, housing for out-of-town visitors, and finally educational institutions focused on the natural sciences. Unlike Western universities, students at a madrasa would learn from one specific teacher, who would issue a certificate at the completion of their studies called an Ijazah. An Ijazah differs from a western university degree in many ways one being that it is issued by a single person rather than an institution, and another being that it is not an individual degree declaring adequate knowledge over broad subjects, but rather a license to teach and pass on a very specific set of texts. Women were also allowed to attend madrasas, as both students and teachers, something not seen in high western education until the 1800s. Madrasas were more than just academic centers. The Suleymaniye Mosque, for example, was one of the earliest and most well-known madrasas, which was built by Suleiman the Magnificent in the 16th century The Suleymaniye Mosque was home to a hospital and medical college, a kitchen, and children's school, as well as serving as a temporary home for travelers.
https://en.wikipedia.org/wiki?curid=14400
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Schmidt has appeared on various occasions in the media, often he is asked about his expertise on climate related study findings, current events or gives lectures. Schmidt worked with the American Museum of Natural History, the College de France, and the New York Academy of Sciences for education and outreach. Schmidt and eight other colleagues founded in 2004 the RealClimate blog. The blog provides critical commentary on climate science with the scope on outreach to the public and for journalists. Additionally, the blog features frequent guest posts by experts in their field. Articles and commentary have defended scientific research against allegations made about the hockey stick graph. During the 2009-2010 Climatic Research Unit email controversy he strongly defended the scientists involved, including Michael E. Mann and Phil Jones. Journalist Fred Pearce noted, ""Schmidt wrote that the emails merely showed how scientists interact in private"", and that ""Gravity isn't a useful theory because Newton was a nice man.""
https://en.wikipedia.org/wiki?curid=1230631
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Microplasmas serve as energetic sources of ions and radicals, which are desirable for activating chemical reactions. Microplasmas are used as flow reactors that allow molecular gases to flow through the microplasma inducing chemical modifications by molecular decomposition. The high energy electrons of microplasmas accommodate chemical modification and reformation of liquid hydrocarbon fuels to produce fuel for fuel cells. Becker and his co-workers used a single flow-through dc-excited microplasma reactor to generate hydrogen from an atmospheric pressure mixture of ammonia and argon for use in small, portable fuel cells. Lindner and Besser experimented with reforming model hydrocarbons such as methane, methanol, and butane into hydrogen for fuel cell feed. Their novel microplasma reactor was a microhollow cathode discharge with a microfluidic channel. Mass and energy balances on these experiments revealed conversions up to nearly 50%, but the conversion of electrical power input to chemical reaction enthalpy was only on the order of 1%. Although through modeling the reforming reaction it was found that the amount of input electrical power to chemical conversion could increase by improving the device as well as the system parameters.
https://en.wikipedia.org/wiki?curid=18446530
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There has been very limited study of patients receiving potentially actionable genomic based results or the utilization of genetic counselors in the online result delivery process. A randomized controlled trial on 199 patients with chronic disease each receiving eight personalized and actionable complex disease reports online. Primary study aims were to assess the impact of in-person genomic counseling on 1) causal attribution of disease risk, 2) personal awareness of disease risk, and 3) perceived risk of developing a particular disease. Of 98 intervention arm participants (mean age = 57.8; 39% female) randomized for in-person genomic counseling, 76 (78%) were seen. In contrast, control arm participants (n = 101; mean age = 58.5; 54% female) were initially not offered genomic counseling as part of the study protocol but were able to access in-person genomic counseling, if they requested it, 3-months post viewing of at least one test report and post-completion of the study-specific follow-up survey. A total of 64 intervention arm and 59 control arm participants completed follow-up survey measures. We found that participants receiving in-person genomic counseling had enhanced objective understanding of the genetic variant risk contribution for multiple complex diseases. Genomic counseling was associated with lowered participant causal beliefs in genetic influence across all eight diseases, compared to control participants. Our findings also illustrate that for the majority of diseases under study, intervention arm participants believed they knew their genetic risk status better than control arm subjects. Disease risk was modified for the majority during genomic counseling, due to the assessment of more comprehensive family history. In conclusion, for patients receiving personalized and actionable genomic results through a web portal, genomic counseling enhanced their objective understanding of the genetic variant risk contribution to multiple common diseases. These results support the development of additional genomic counseling interventions to ensure a high level of patient comprehension and improve patient-centered health outcomes.
https://en.wikipedia.org/wiki?curid=25569540
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Alfred Marshall and his disciples dominated economic theory until the end of WWII. With the Cold War, the theory changed, emphasizing that a market economy was superior and the only sensible way. In Paul Samuelson's "Economics: An Introductory Analysis", 1948, Adam Smith's "invisible hand" was only a footnote. In later editions, it became the central theme. As Samuelson remembers, all this was challenged by Stanislaw Ulam: "[Y]ears ago... I was in the Society of Fellows at Harvard along with the mathematician Stanislaw Ulam. Ulam, who was to become an originator of the Monte Carlo method and co-discoverer of the hydrogen-bomb... used to tease me by saying, 'Name me one proposition in all of the social sciences which is both true and non-trivial.' This was the test that I always failed. But now, some thirty years later ... an appropriate answer occurs to me: The Ricardian theory of comparative advantage ... That it is logically true need not be argued before a mathematician; that it is not trivial is attested by the thousands of important and intelligent men who have never been able to grasp the doctrine for themselves or to believe it after it was explained to them."
https://en.wikipedia.org/wiki?curid=41531
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The term ‘usage-based’ was coined by Ronald Langacker in 1987, while doing research on Cognitive Grammar. Langacker identified commonly recurring linguistic patterns (patterns such as those associated with Wh- fronting, subject-verb agreement, the use of present participles, etc.) and represented these supposed rule-governed behaviours on a hierarchical structure. The Cognitive Grammar model represented grammar, semantics and lexicon as associated processes that were laid on a continuum, which provided a theoretical framework that was significant in studying the usage-based conception of language. Consequently, a usage-based model accounts for these rule-governed language behaviours by providing a representational scheme that is entirely instance-based, and able to recognize and uniquely represent each familiar pattern, which occurs with varying strengths at different instances. His usage-based model draws on the cognitive psychology of schemata, which are flexible hierarchical structures that are able to accommodate the complexity of mental stimuli. Similarly, as humans perceive linguistic abstractions as multilayered, ranging from patterns that occur across whole utterances to those that occur in phonetic material, the usage-based model acknowledges the differing levels of granularity in speakers’ knowledge of their language. Langacker’s work emphasizes that both abstract structure and instance-based detail are contained in language, differing in granularity but not in basic principles.
https://en.wikipedia.org/wiki?curid=66383636
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Hedges has a Bachelor of Science undergraduate degree from George Mason University, and a Masters and Ph.D. in Zoology from the University of Maryland, supervised by Richard Highton. Before he joined Temple University in 2014, he was a professor at Penn State. He is also a founding member of the NASA Astrobiology Center. He has published over 300 peer-reviewed works including 10 books and monographs. He was elected as a fellow of the American Association for the Advancement of Science in 2009 for "revealing connections between biological evolution and Earth history in diverse groups of organisms", and was awarded the 2011 Penn State Faculty Scholar Medal for Outstanding Achievement in the Life and Health Sciences. A Cuban butterfly ("Leptodes hedgesi" Schwartz & Johnson 1992), Cuban frog ("Eleutherodactylus blairhedgesi" Estrada, Diaz, & Rodriguez 1997), and Cuban millipede ("Amphelictogon blairi" Perez-Asso 1998) have been named in his honor.
https://en.wikipedia.org/wiki?curid=46183389
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Kate Jones, Chair of Ecology and Biodiversity at University College London, says zoonotic diseases are increasingly linked to environmental change and human behaviour. The disruption of pristine forests driven by logging, mining, road building through remote places, rapid urbanisation and population growth is bringing people into closer contact with animal species they may never have been near before. The resulting transmission of disease from wildlife to humans, she says, is now "a hidden cost of human economic development". In a guest article, published by IPBES, President of the EcoHealth Alliance and zoologist Peter Daszak, along with three co-chairs of the 2019 "Global Assessment Report on Biodiversity and Ecosystem Services", Josef Settele, Sandra Díaz, and Eduardo Brondizio, wrote that "rampant deforestation, uncontrolled expansion of agriculture, intensive farming, mining and infrastructure development, as well as the exploitation of wild species have created a 'perfect storm' for the spillover of diseases from wildlife to people."
https://en.wikipedia.org/wiki?curid=34439
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Sea sponge aquaculture is the process of farming sea sponges under controlled conditions. It has been conducted in the world's oceans for centuries using a number of aquaculture techniques. There are many factors such as light, salinity, pH, dissolved oxygen and the accumulation of waste products that influence the growth rate of sponges. The benefits of sea sponge aquaculture are realised as a result of its ease of establishment, minimum infrastructure requirements and the potential to be used as a source of income for populations living in developing countries. Sea sponges are produced on a commercial scale to be used as bath sponges or to extract biologically active compounds which are found in certain sponge species. Techniques such as the rope and mesh bag method are used to culture sponges independently or within an integrated multi-trophic aquaculture system setting. One of the only true sustainable sea sponges cultivated in the world occur in the region of Micronesia, with a number of growing and production methods used to ensure and maintain the continued sustainability of these farmed species.
https://en.wikipedia.org/wiki?curid=32630289
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Coffinite was first discovered in sedimentary uranium deposits in the Colorado Plateau region, but has also been discovered in sedimentary uranium deposits and hydrothermal veins in many other locations. Samples of coffinite from the Colorado Plateau were found with black fine-grained low-valence vanadium minerals, uraninite and finely dispersed black organic material. Other materials associated with later finds from the same region were clay and quartz. In vein deposits of the Copper King Mine in Colorado, coffinite was also found to occur with uraninite and pitchblende. Coffinite is metastable compared to uraninite and quartz, thus formation of coffinite requires a uranium source in reducing conditions, as evidenced by the associated presence of low-valence vanadium minerals. Silica-rich solution provides such a reducing condition in cases where coffinite results as an alteration product of uraninite. Hansley and Fitzpatrick also noted that the brownish color of their coffinite samples was caused by organic material, leading them to conclude that coffinite can also form in low temperature conditions if organic carbon is present. This finding is consistent with the coffinite samples of the Colorado Plateau, which included fossilized wood. In China, coffinite can be found in granite in addition to sandstone. Hansley and Fitzpatrick concluded that coarse-grained coffinite most likely forms in high temperature environments. Coffinite and uraninite precipitate inside brecciated and fractured regions of altered granite at pressures between 500 and 800 bars and temperatures at 126 to 178 °C.
https://en.wikipedia.org/wiki?curid=719150
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The energy and momentum are properties of matter and radiation, and it is impossible to deduce that they form a four-vector just from the two basic postulates of special relativity by themselves, because these don't talk about matter or radiation, they only talk about space and time. The derivation therefore requires some additional physical reasoning. In his 1905 paper, Einstein used the additional principles that Newtonian mechanics should hold for slow velocities, so that there is one energy scalar and one three-vector momentum at slow velocities, and that the conservation law for energy and momentum is exactly true in relativity. Furthermore, he assumed that the energy of light is transformed by the same Doppler-shift factor as its frequency, which he had previously shown to be true based on Maxwell's equations. The first of Einstein's papers on this subject was "Does the Inertia of a Body Depend upon its Energy Content?" in 1905. Although Einstein's argument in this paper is nearly universally accepted by physicists as correct, even self-evident, many authors over the years have suggested that it is wrong. Other authors suggest that the argument was merely inconclusive because it relied on some implicit assumptions.
https://en.wikipedia.org/wiki?curid=26962
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Green building on college campuses is the purposeful construction of buildings on college campuses that decreases resource usage in both the building process and also the future use of the building. The goal is to reduce emissions, energy use, and water use, while creating an atmosphere where students can be healthy and learn. Universities across the country are building to green standards set forth by the USGBC, United States Green Building Council. The USGBC is a non-profit organization that promotes sustainability in how buildings are designed and built. This organization created the Leadership in Energy and Environmental Design (LEED) rating system, which is a certification process that provides verification that a building is environmentally sustainable. In the United States, commercial and residential buildings account for 70 percent of the electricity use and over 38 percent of emissions. Because of these huge statistics regarding resource usage and emissions, the room for more efficient building practices is dramatic. Since college campuses are where the world's future leaders are being taught, colleges are choosing to construct new buildings to green standards in order to promote environmental stewardship to their students. Colleges across the United States have taken leading roles in the construction of green building in order to reduce resource consumption, save money in the long run, and instill the importance on environmental sustainability on their students. It is a better way to motivate new generation to live a sustainable life.
https://en.wikipedia.org/wiki?curid=25102062
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In efforts to remediate the damages done by slow-degrading plastics, detergents, metals, and other pollutants created by humans, economic costs have become a concern. Marine litter in particular is notably difficult to quantify and review. Researchers at the World Trade Institute estimate that cleanup initiatives' cost (specifically in ocean ecosystems) has hit close to thirteen billion dollars a year. The main concern stems from marine environments, with the biggest cleanup efforts centering around garbage patches in the ocean. In 2017, a garbage patch the size of Mexico was found in the Pacific Ocean. It is estimated to be upwards of a million square miles in size. While the patch contains more obvious examples of litter (plastic bottles, cans, and bags), tiny microplastics are nearly impossible to clean up. "National Geographic" reports that even more non-biodegradable materials are finding their way into vulnerable environments - nearly thirty-eight million pieces a year.
https://en.wikipedia.org/wiki?curid=47490
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Perturb-seq or other conceptually similar protocols can be used to address a broad scope of biological questions and the applications of this technology will likely grow over time. Three papers on this topic, published in the December 2016 issue of the Journal Cell, demonstrated the utility of this method by applying it to the investigation of several distinct biological functions. In the paper, “Perturb-Seq: Dissecting Molecular Circuits with Scalable Single-Cell RNA Profiling of Pooled Genetic Screens”, the authors used Perturb-seq to conduct knockouts of transcription factors related to the immune response in hundreds of thousands of cells to investigate the cellular consequences of their inactivation. They also explored the effects of transcription factors on cell states in the context of the cell cycle. In the study led by UCSF, “A Multiplexed Single-Cell CRISPR Screening Platform Enables Systematic Dissection of the Unfolded Protein Response” the researchers suppressed multiple genes in each cell to study the unfolded protein response (UPR) pathway. With a similar methodology, but using the term CRISP-seq instead of Perturb-seq, the paper "Dissecting Immune Circuits by Linking CRISPR-Pooled Screens with Single-Cell RNA-Seq" performed a proof of concept experiment by using the technique to probe regulatory pathways related to innate immunity in mice. Lethality of each perturbation and epistasis analyses in cells with multiple perturbations was also investigated in these papers. Perturb-seq has so far been used with very few perturbations per experiment, but it can theoretically be scaled up to address the whole genome. Finally, the October 2016 preprint and subsequent paper demonstrate the bioinformatic reconstruction of the T cell receptor signaling pathway in Jurkat cells based on CROP-seq data.
https://en.wikipedia.org/wiki?curid=53353992
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"M. atropurpureum" is native to Central and South America, as well as the Caribbean Islands, and has been known to grow in some regions of southern North America, including Mexico and the USA in states such as Arizona, Texas, Florida, and Hawaii, as well as coastal regions in Queensland and New South Wales, Australia, and scattered regions across Africa. Its historical use has been to serve as pasture for domesticated livestock, and was the first tropical pasture improved by breeding. Performed in Australia in 1960s, native "M. atropurpureum" was bred to resist nematodes in its roots, which created a modified species known as 'Siratro', which developed a rust sensitivity, so 'Aztec' was developed to counter the arisen problem in 1995. On indigenous North and South American farms where "M. atropurpureum" was available, it would often be used as a ground cover during dry seasons to take advantage of the nitrogen-fixation abilities the legume has; this prevented soil erosion and acted as an organic fertilizer.
https://en.wikipedia.org/wiki?curid=15208051
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Stakeholders such as Deutsche Bahn have opted for a streamlined development model for ETCS – DB will assemble a database of change requests (CRs) to be assembled by priority and effect in a CR-list for the next milestone report (MRs) that shall be published on fixed dates through ERA. The "SRS 3.4.0" from Q2 2014 matches with the MR1 from this process. The further steps were planned for the MR2 to be published in Q4 2015 (that became the "SRS 3.5.0") and the MR3 to be published in Q3 2017 (whereas "SRS 3.6.0" was settled earlier in June 2016). Each specification will be commented on and handed over to the RISC for subsequent legalization in the European Union. Deutsche Bahn has expressed a commitment to keep the Baseline 3 specification backward compatible starting at least with SRS 3.5.0 that is due in 2015 according to the streamlined MR2 process, with the MR1 adding requirements from its tests in preparation for the switch to ETCS (for example better frequency filters for the GSM-R radio equipment). The intention is based on plans to start replacing its PZB train protection system at the time.
https://en.wikipedia.org/wiki?curid=2214121
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With a failure in emotion regulation, there is a rise in psychosocial and emotional dysfunctions caused by traumatic experiences due to an inability to regulate emotions. These traumatic experiences typically happen in grade school and are sometimes associated with bullying. Children who can't properly self-regulate express their volatile emotions in a variety of ways, including screaming if they don't have their way, lashing out with their fists, throwing objects (such as chairs), or bullying other children. Such behaviors often elicit negative reactions from the social environment, which, in turn, can exacerbate or maintain the original regulation problems over time, a process termed cumulative continuity. These children are more likely to have conflict-based relationships with their teachers and other children. This can lead to more severe problems such as an impaired ability to adjust to school and predicts school dropout many years later. Children who fail to properly self-regulate grow as teenagers with more emerging problems. Their peers begin to notice this "immaturity", and these children are often excluded from social groups and teased and harassed by their peers. This "immaturity" certainly causes some teenagers to become social outcasts in their respective social groups, causing them to lash out in angry and potentially violent ways. Being teased or being an outcast in childhood is especially damaging because it could lead to psychological symptoms such as depression and anxiety (in which dysregulated emotions play a central role), which, in turn, could lead to more peer victimization. This is why it is recommended to foster emotional self-regulation in children as early as possible.
https://en.wikipedia.org/wiki?curid=17476149
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Furthermore, the team continued to struggle with the Frostbite engine, as EA's management under Patrick Söderlund wanted all its studios using the same technology. Frostbite was not originally designed for the purposes that the team had in mind for "Anthem". BioWare had difficulty transitioning some of the systems they had built for "Dragon Age" and "Mass Effect" into "Anthem" - leading to the team scrapping some of their gameplay concepts like survival and crafting. Some of the BioWare team familiar with Frostbite were moved to support the "FIFA" series in 2016 when it transitioned to the Frostbite Engine, leaving fewer to help with "Anthem". Four years into development, developers expressed concern that "Anthem" was nowhere close to the final production stages, and were facing similar issues with poor management of the project as had happened with "Dragon Age: Inquisition" and "Mass Effect Andromeda", as few concrete decisions were being made by the lead designers. Despite trying to distance themselves from Bungie's "Destiny", elements from that game, particularly related to the loot shooting aspects, started to appear into "Anthem"s gameplay as BioWare recognized that Bungie had greatly refined these elements.
https://en.wikipedia.org/wiki?curid=54272102
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One of the main disagreements between the two theorists revolves around their conceptualization among narcissistic and borderline disorders. According to Kernberg, the defensive structure of the narcissistic individual is quite similar to that of the borderline person since the former has a fairly underlying borderline personality organization which becomes obvious when one looks at the defenses of splitting and projective identification. He identifies constitutional along with environmental factors as the source of disturbance for these individuals by stressing the important role of the mother surrogate who treats the child on the surface (callously) with little regard for his/her feelings and needs. Kohut on the other hand, sees borderline personality as totally distinct from the narcissistic one and less able to benefit from the analytic treatment. Equally, a narcissistic personality is more apt for analysis since it is characterized by a more resilient self. According to Kohut , the environment alone is the major cause of troubles for these persons. Moreover, although both focus on the concept of the ""grandiose self"" in their narcissistic personality theorizing, they provide different explanations for it. For Kohut, ""grandiose self"" reflects the ""fixation of an archaic 'normal' primitive self"" while for Kernberg it is a pathological development, different from normal narcissism. For Kohut treatment should be primarily centered on encouraging the patient's narcissistic desires, wishes, and needs to open up during the process of transference. For Kernberg, the goal of treatment should be to use confrontation strategies so as to help the patient integrate his/her internal fragmented world.
https://en.wikipedia.org/wiki?curid=1042977
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In situ ellipsometry refers to dynamic measurements during the modification process of a sample. This process can be used to study, for instance, the growth of a thin film, including calcium phosphate mineralization at the air-liquid interface, etching or cleaning of a sample. By in situ ellipsometry measurements it is possible to determine fundamental process parameters, such as, growth or etch rates, variation of optical properties with time. In situ ellipsometry measurements require a number of additional considerations: The sample spot is usually not as easily accessible as for ex situ measurements outside the process chamber. Therefore, the mechanical setup has to be adjusted, which can include additional optical elements (mirrors, prisms, or lenses) for redirecting or focusing the light beam. Because the environmental conditions during the process can be harsh, the sensitive optical elements of the ellipsometry setup must be separated from the hot zone. In the simplest case this is done by optical view ports, though strain induced birefringence of the (glass-) windows has to be taken into account or minimized. Furthermore, the samples can be at elevated temperatures, which implies different optical properties compared to samples at room temperature. Despite all these problems, in situ ellipsometry becomes more and more important as process control technique for thin film deposition and modification tools. In situ ellipsometers can be of single-wavelength or spectroscopic type. Spectroscopic in situ ellipsometers use multichannel detectors, for instance CCD detectors, which measure the ellipsometric parameters for all wavelengths in the studied spectral range simultaneously.
https://en.wikipedia.org/wiki?curid=1177592
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He studied physics at the University of Szeged, Hungary and the University of Jena, Germany, and received a diploma as research physicist in 2000. After graduation, he was awarded a German Academic Exchange Service Doctoral Fellowship and began his doctoral studies at the University of Jena, under the supervision of Thomas Henning on observational studies of young stars. In 2002 he moved to the Max Planck Institute for Astronomy, Heidelberg, Germany and he received his Ph.D. from the University of Heidelberg in 2004. In 2004 he was the recipient of the Patzer Price. Between 2004 and 2008 Daniel Apai has worked as a postdoctoral researcher at the Steward Observatory's NASA Astrobiology Institute node on high-contrast adaptive optics direct imaging searches for extrasolar planets. In 2008, Apai took on a position at the Space Telescope Science Institute as an assistant astronomer at the institute's Science Policy Group. In 2011, he moved back to faculty of the University of Arizona's Steward Observatory and Lunar and Planetary Laboratory, where he is full professor since 2021. He also held short-term visiting positions at The University of Texas, at the Max Planck Institute for Astronomy, Heidelberg, and at The University of Bern.
https://en.wikipedia.org/wiki?curid=19836008
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Infected individuals and diseased corpses pose a particular risk for social insects because they can act a source of infection for the rest of the colony. As mentioned above, dead nestmates are typically removed from the nest to reduce the potential risk of disease transmission. Infected or not, ants that are close to death can also voluntarily remove themselves from the colony to limit this risk. Honeybees can reduce social interactions with infected nest mates, actively drag them out of the hive, and may bar them from entering at all. "Hygienic behaviour" is the specific removal of infected brood from the colony and has been reported in both honeybees and ants. In honeybees, colonies have been artificially selected to perform this behavior faster. These "hygienic" hives have improved recovery rates following brood infections, as the earlier infected brood is removed, the less likely it is to have become contagious already. Cannibalism of infected nest mates is an effective behaviour in termites, as ingested infectious material is destroyed by antimicrobial enzymes present in their guts. These enzymes function by breaking down the cell walls of pathogenic fungi, for example, and are produced both by the termite itself and their gut microbiota. If there are too many corpses to cannibalise, termites bury them in the nest instead. Like removal in ants and bees, this isolates the corpses to contain the pathogen, but does not prevent their replication. Some fungal pathogens (e.g. "Ophiocordyceps", "Pandora") manipulate their ant hosts into leaving the nest and climbing plant stems surrounding the colony. There, attached to the stem, they die and rain down new spores onto healthy foragers. To combat these fungi, healthy ants actively search for corpses on plant stems and attempt to remove them before they can release their spores
https://en.wikipedia.org/wiki?curid=51046084
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As of 2012, the typical Internet core link speed is 40 Gbit/s, with many links at higher speeds, reaching or exceeding 100 Gbit/s (out of a theoretical current maximum of 111 Gbit/s, provided by Nippon Telegraph and Telephone ), provisioning the explosion in demand for bandwidth in the current generation of cloud computing and other bandwidth-intensive (and often latency-sensitive) applications such as high-definition video streaming (see IPTV) and Voice over IP. This, along with newer technologies – such as DOCSIS 3, channel bonding, and VDSL2 (the latter of which can wring more than 100 Mbit/s out of plain, unshielded twisted-pair copper under normal conditions, out of a theoretical maximum of 250 Gbit/s at 0.0m from the VRAD) – and more sophisticated provisioning systems – such as FTTN (fiber <nowiki>[optic cable]</nowiki> to the node) and FTTP (fiber to the premises, either to the home or provisioned with Cat 5e cable) – can provide downstream speeds to the mass-market residential consumer in excess of 300 Mbit/s and upload speeds in excess of 100 Mbit/s with no specialized equipment or modification e.g.(Verizon FiOS).
https://en.wikipedia.org/wiki?curid=9358077
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Today, hundreds of academic and industrial groups use Guy Bertrand's CAACs and other carbenes in transition metal catalysis, but also for other purposes. The most recent developments cover a wide range from nanoparticle stabilization to the antibacterial and anti-cancer properties of silver (I) and gold (I) complexes. A CAAC-copper complex even allows OLEDs to be used with a quantum efficiency close to 100% at high brightness. The discovery of stable carbenes was a breakthrough for fundamental chemistry, a real paradigm shift, but its importance also comes, and perhaps more importantly, from applications. In his review article on "N-heterocyclic carbenes", a terminology that includes carbenes, Glorius et al. wrote: "The discovery and development of N-heterocyclic carbenes is undoubtedly one of the greatest successes of recent chemical research", "N-heterocyclic carbenes are today among the most powerful tools in organic chemistry, with many applications in commercially important processes", "the meteoric rise of NHC is far from over".
https://en.wikipedia.org/wiki?curid=25315066
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Once begun, PD causes progressive deterioration of insulating materials, ultimately leading to electrical breakdown. The effects of PD within high voltage cables and equipment can be very serious, ultimately leading to complete failure. The cumulative effect of partial discharges within solid dielectrics is the formation of numerous, branching partially conducting discharge channels, a process called treeing. Repetitive discharge events cause irreversible mechanical and chemical deterioration of the insulating material. Damage is caused by the energy dissipated by high energy electrons or ions, ultraviolet light from the discharges, ozone attacking the void walls, and cracking as the chemical breakdown processes liberate gases at high pressure. The chemical transformation of the dielectric also tends to increase the electrical conductivity of the dielectric material surrounding the voids. This increases the electrical stress in the (thus far) unaffected gap region, accelerating the breakdown process. A number of inorganic dielectrics, including glass, porcelain, and mica, are significantly more resistant to PD damage than organic and polymer dielectrics.
https://en.wikipedia.org/wiki?curid=467804
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An important ecological function of plants is that they produce organic compounds for herbivores in the bottom of the food web. A large number of plant traits, from thorns to chemical defenses, can be related to the intensity of herbivory. Large herbivores can also have many effects on vegetation. These include removing selected species, creating gaps for regeneration of new individuals, recycling nutrients, and dispersing seeds. Certain ecosystem types, such as grasslands, may be dominated by the effects of large herbivores, although fire is also an equally important factor in this biome. In few cases, herbivores are capable of nearly removing all the vegetation at a site (for example, geese in the Hudson Bay Lowlands of Canada, and nutria in the marshes of Louisiana) but normally herbivores have a more selective impact, particularly when large predators control the abundance of herbivores. The usual method of studying the effects of herbivores is to build exclosures, where they cannot feed, and compare the plant communities in the exclosures to those outside over many years. Often such long term experiments show that herbivores have a significant effect upon the species that make up the plant community.
https://en.wikipedia.org/wiki?curid=23470640
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The Cabinet Secretary, Sir John Hunt briefed Cabinet on Polaris on 28 November 1977, noting that a possible successor might take up to 15 years to bring into service, depending on the nature of system chosen, and whether it was to be developed by the UK, or in collaboration with France or the US. With the recent experience of Chevaline in mind, the option of a purely British project was rejected. A study of the options was commissioned in February 1978 from a group chaired by the Deputy Under-Secretary of State at the Foreign Office, Sir Antony Duff, with the Chief Scientific Adviser to the Ministry of Defence, Sir Ronald Mason. The Duff-Mason Report was delivered to the Prime Minister, James Callaghan, in parts on 11 and 15 December. It recommended the purchase of the American Trident I C-4 missile then in service with the US Navy. The C-4 had multiple independently targetable re-entry vehicle (MIRV) capability, which was needed to overcome the Soviet ABM defences.
https://en.wikipedia.org/wiki?curid=9095461
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The first modern diagnosis was provided by David Bruce Norman in 2020. In a first article, Norman provided autapomorphies, unique derived characters, of the skull. The front snout bones, the premaxillae, have a common central rough extension, in life bearing a small upper beak. The nasal bone has on its upper outside a facet touching the inner side of the ascending branch of the premaxilla. The antorbital fenestra is present as a bean-shaped depression, its lower edge formed by a sharp ridge. The central parietal crest on the skull roof is formed by two parallel crests separated by a narrow trough on the midline. The roof of the nasal cavity is formed by special plates above the vomers, called the "epivomers". The epipterygoid bone is shaped as a small conical vertical structure of which the base connects to the upper side of the pterygoid bone by means of a lateral flat surface. The basioccipital has large oblique facets on the lower sides. The opisthotic has an expanded pedicel with facets on its underside. Elongated epistyloid bones project obliquely to the rear and below, from the back of the skull. A small spur-like structure on the upper edge of the paroccipital process encases the posttemporal fenestra. The rear of the skull is fused on its upper edge with a pair of large curved horn-shaped osteoderms. The lower jaw shows only little exostosis, limited to the angular, and lacking an attached osteoderm.
https://en.wikipedia.org/wiki?curid=2469650
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The Spanish paleoartist and writer Mauricio Antón provided an overview of gorgonopsian biology in a 2013 book, writing that despite their differences from saber-toothed mammals, many features of their skeletons indicated they were not sluggish reptiles but active predators. While their brains were relatively smaller than those of mammals, and their sideways placed eyes provided limited stereoscopic vision, they had well-developed turbinals in their nasal cavity, a feature associated with an advanced sense of smell, which would have helped them track prey and carrion. The canine saber teeth were used for delivering the slashing killing-bite, while the incisors, which formed an arch in front of the saber teeth, held the prey and cut the flesh while feeding. To allow them to increase their gape when biting, gorgonopsians had several bones in their mandibles that could move in relation to each other and had a double articulation with the skull—unlike in mammals where the rear joint articular bone has become the malleus ear bone. Antón envisioned gorgonopsians would hunt by leaving their cover when prey was close enough, and use their relatively greater speed to pounce quickly on it, grab it with their forelimbs, and bite any part of the body that would fit in their jaws. Such a bite would cause a large loss of blood, but the predator would continue to try to bite vulnerable parts of the body.
https://en.wikipedia.org/wiki?curid=16984249
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During the mid-2000s, researchers at the National Aerospace Laboratory in the Netherlands examined the use of DVI in the "GRACE" simulator; a total of twelve pilots participated in the ensuing experiment. The tests performed reportedly revealed that, while the hardware itself functioned well, several improvements were desirable prior to real-world deployment on aircraft since DVI operations actually consumed more time in comparison to traditional existing methods. Recommendations for improvements included the adoption of simpler syntax, the achievement of a greater recognition rate, and a decrease in response times; all of the issues encountered were determined to be of a technological nature, and were deemed feasible to resolve. The researchers concluded that in cockpits, especially during emergencies where pilots have to operate entirely on their own, a DVI system could be highly relevant, but that it was not of crucial importance during most other conceivable scenarios.
https://en.wikipedia.org/wiki?curid=8820064
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Less pessimistic than Dayan, Elazar was not ready yet to abandon the Golan Heights. Israeli High Command had a strategic reserve, consisting of the 146th Ugda that was earmarked for Central Command, controlling the eastern border with Jordan. In the evening of October 6, Elazar had considered sending this division to the collapsing Sinai front in view of the initial defensive success at the Golan. The unexpected crisis led to an about-face. Priority was given to the north because of its proximity to Israeli population centers at Tiberias, Safed, Haifa and Netanya. Elazar ordered that, after mobilisation, the 146th Ugda was to reconquer the southern Golan. This division would take some time to deploy. Some smaller units could be quickly mobilised to bolster the defenses. The Syrians had expected it to take at least twenty-four hours for Israeli reserves to reach the front lines; in fact, they began to join the fight only nine hours after the war began, twelve hours after the start of the mobilisation. The Golan position had been at only 80% of its planned strength for the defensive phase of a full war with Syria. Northern Command had a headquarters reserve consisting of a unnumbered rapid deployment Centurion tank battalion. Also, the 71st Mechanised Infantry Battalion, with two organic tank companies, of the 188th AB had not yet been activated. During the night of October 6/7 these two battalions were gradually brought up.
https://en.wikipedia.org/wiki?curid=34276
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The Akan speak a Kwa language. The speakers of Kwa languages are believed to have come from East/Central Africa, before settling in the Sahel. By the 12th century, the Akan Kingdom of Bonoman (Bono State) was established. During the 13th century, when the gold mines in modern-day Mali started to dry up, Bonoman and later other Akan states began to rise to prominence as the major players in the Gold trade. It was Bonoman and other Akan kingdoms like Denkyira, Akyem, Akwamu which were the predecessors, and later the emergence of the Empire of Ashanti. When and how the Ashante got to their present location is debatable. What is known is that by the 17th century an Akan people were identified as living in a state called Kwaaman. The location of the state was north of Lake Bosomtwe. The state's revenue was mainly derived from trading in gold and kola nuts and clearing forest to plant yams. They built towns between the Pra and Ofin rivers. They formed alliances for defense and paid tribute to Denkyira one of the more powerful Akan states at that time along with Adansi and Akwamu. During the 16th century, Ashante society experienced sudden changes, including population growth because of cultivation of New World plants such as cassava and maize and an increase in the gold trade between the coast and the north.
https://en.wikipedia.org/wiki?curid=14099
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The Cretaceous () had much of the same insect fauna as the Jurassic until much later on. During the Cretaceous, the late-Paleozoic-to-early-Mesozoic supercontinent of Pangaea completed its tectonic breakup into present day continents, although their positions were substantially different at the time. As the Atlantic Ocean widened, the convergent-margin orogenies that had begun during the Jurassic continued in the North American Cordillera, as the Nevadan orogeny was followed by the Sevier and Laramide orogenies. Though Gondwana was still intact in the beginning of the Cretaceous, it broke up as South America, Antarctica and Australia rifted away from Africa (though India and Madagascar remained attached to each other); thus, the South Atlantic and Indian Oceans were newly formed. Such active rifting lifted great undersea mountain chains along the welts, raising eustatic sea levels worldwide. To the north of Africa the Tethys Sea continued to narrow. Broad shallow seas advanced across central North America (the Western Interior Seaway) and Europe, then receded late in the period, leaving thick marine deposits sandwiched between coal beds.
https://en.wikipedia.org/wiki?curid=3969819
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The most common weather Barograph found in homes and public buildings these days are the 8-day type. Some important manufacturers of barographs are Negretti and Zambra, Short and Mason, and Richard Ferris among others. The late Victorian to early 20th century is generally considered to be the heyday of Barograph manufacture. Many important refinements were made at this time, including improved temperature compensation and modification of the pen arm, to allow less weight to be applied to the paper, allowing better registration of small pressure changes (i.e. less friction on the nib). Marine barographs (used on ships) often include damping. This evens out the motion of the ship so that a more stable reading can be obtained, this can be either oil damping of the mechanism or simple coiled spring feet on the base. But, newer solid state, digital barographs eliminate this issue altogether, since they use no moving parts.
https://en.wikipedia.org/wiki?curid=570723
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Its battlefield debut occurred on 31 May 1918, east of the Forest of Retz, east of Chaudun, between Ploisy and Chazelles, during the Third Battle of the Aisne. This engagement, with 30 tanks, successfully broke up a German advance, but in the absence of infantry support, the vehicles later withdrew. From then on, gradually increasing numbers of FTs were deployed, together with smaller numbers of the older Schneider CA1 and Saint-Chamond tanks. As the war had become a war of movement during mid-1918, during the Hundred Days Offensive, the lighter FTs were often transported on heavy trucks and special trailers rather than by rail on flat cars. Estienne had initially proposed to overwhelm the enemy defences using a "swarm" of light tanks, a tactic that was eventually successfully implemented. Beginning in late 1917, the Entente allies were attempting to outproduce the Central Powers in all respects, including artillery, tanks, and chemical weapons. Consequently, a goal was set of manufacturing 12,260 FT tanks (7,820 in France and 4,440 in the United States) before the end of 1919.It played a leading role in the offensives of 1918, when it received the popular name of "Victory Tank".
https://en.wikipedia.org/wiki?curid=354354
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For their second game, Quinnipiac knew they were facing a tougher fight in top-seeded Michigan and they would have to play much better if they had any chance at victory. Early on, nothing seemed to go right for the Bobcats. They weren't able to get any traction in the game and found themselves down 0–4 after two periods. Needing to wake his team up, Pecknold replaced Perets with St. Cyr in goal for the start of third and the Bobcats rose to the occasion. Quinnipiac completely took over the game in the final frame, peppering the Wolverine cage with shot after shot until Jayden Lee finally broke through. The score remained unchanged for about five minutes but the assault continued. Around the mid-way point of the period, Quinnipiac netted 2 goals in the span of 2 minutes, cutting the lead to 1 with just under nine minutes to play. With Michigan reeling, it appeared that the Bobcats may have had a shot at upsetting the championship favorites. While the Wolverines shored up their defense, they could not keep the puck away from Quinnipiac and the bobcats attacked relentlessly. Despite the constant threat of scoring, Pecknold pulled St. Cyr for an extra attacker with 4 minutes to play, much earlier than 1-goal deficit typically required. The gambit failed almost immediately as a bad pass in the Michigan zone ended up being skated down the ice into a vacated cage. Two successive goals put the game out of reach and Quinnipiac's season was over.
https://en.wikipedia.org/wiki?curid=68590921
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There was no consistency observed in clinical results relating chromium(III) picolinate to adequate treatment of type 2 diabetes. This is due to the degree of glucose intolerance of patients that participate in the clinical studies. Glucose intolerance is a gradient and the intensity is affected by ethnicity, degree of obesity, age, distribution of body fat and many other factors. In some studies, low dosages of the supplement were given, however, a suitable amount of chromium(III) picolinate must be administrated to a person before any appreciable drop in glucose levels are observed due to differing levels of insulin resistance. Another important point to mention is that diabetes is not always caused by glucose intolerance. As mentioned before, Cr(III) has been shown to only influence glucose intolerance and not insulin levels. Furthermore, the environments in which the studies were performed were not consistent. The levels of stress, diets consumed by patients and patient genetics were variable among study subjects. This is also true of the controls amongst different studies in which the subjects having diabetes were already being treated with a wide variety of antidiabetic drugs, which can reduce the effects of chromium on affecting insulin activity. This could explain why animal studies tend to yield more positive results owing to the fact that these diabetic animals were not treated with antidiabetic drugs for the control group. Also, as mentioned in the absorption and excretion section, the absorption/bioavailability of chromium(III) picolinate is influenced by the diet. Collectively, these different factors have contributed to the variability in the studies.
https://en.wikipedia.org/wiki?curid=2876898
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Early SECMs were constructed solely by individual lab groups from a set of common components including potentiostat (or bipotentiostat) and potential programmer, current amplifier, piezoelectric positioner and controller, computer, and UME. Many SECM experiments are highly specific in nature, and in-house assembly of SECMs remains common. The development of new techniques toward the reliable nanofabrication of electrodes has been a primary focus in the literature due to several distinct advantages including high mass-transfer rates and low levels of reactant adsorption in kinetic experiments. Additionally, enhanced spatial resolution afforded by reduced tip size expands the scope of SECM studies to smaller and faster phenomena. The following methods encompass an abbreviated summary of fabrication techniques in a rapidly developing field.
https://en.wikipedia.org/wiki?curid=33179399
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AUAF in fall 2011 began its first graduate program, offering the master of business administration degree. This program builds on the success of the university's undergraduate business program, which is the most popular major among AUAF students. A total of 29 students were admitted in the first MBA class. It is now offering students an opportunity to pursue an optional bi-annual concentration program in Finance or Management. The program comprises 14 credit courses that provide a comprehensive view of general business management. Classes are admitted on a cohort basis. Each cohort progresses through an established sequence of courses that first develop the concepts, tools, and techniques used in “best-practices” organizations. The MBA program begins each fall. The first cohort graduated in May 2013. On May 22, 2015, a total of 59 students graduated from MBA. Masters of Arts in Education program was launched at AUAF in March 2014. It was a collaborative effort with Afghan Ministry of Education Teacher Training Directorate, and with funding from the Afghanistan Reconstruction Trust Fund (ARTF) and the World Bank. On April 17, 2015, AUAF held the graduation ceremony for the inaugural cohort of students in this program. The program included 318 students (23% female), representing all of the country's 34 provinces.
https://en.wikipedia.org/wiki?curid=5229461
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However, subsequent studies have cast doubt on the usefulness of minor variations in frill spike arrangement for classifying centrosaurines. In particular, large sample sizes of the species "Centrosaurus apertus" and "Styracosaurus albertensis" have shown a higher than predicted amount of variation. In 2020, Holmes et al. explored what the effect of recognizing such diversity would have on centrosaur classification. They used the same data as Chiba "et al."'s 2017 study, but treated "Rubeosaurus" as a synonym of "Styracosaurus", dropping it from their taxon list. The resulting cladogram (below) found Centrosaurini as a polytomy, a grouping with no discernable sister group relationships within it. The authors concluded that this meant the variation present within these species made it difficult to find any real resolution among them, and may even provide support for the hypothesis that centrosaurines evolved primarily via anagenesis (a single lineage changing through time) rather than cladogenesis (multiple branching lineages with shared common ancestors).
https://en.wikipedia.org/wiki?curid=10834116
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The AAI is considered one of the most comprehensive attachment assessments, and is well validated. It was initially created by Nancy George and Carol Kaplan in, and later developed with Mary Main in 1985. Crittenden and Landini slightly modified it with DMM theory in 2011. It assesses self-protective attachment strategies, patterns of information processing, a possible unresolved trauma and loss which distort behavior and information processing, an over-riding condition which causes information distortion such as depression and triangulation in childhood, memory system usage, and reflective function. The assessment involves asking a person a series of structured questions, transcribing the audio recording, and applying a complex set of discourse analysis techniques. The interview takes 60–90 minutes, and it can take hours or days to analyze. Learning to code reliably generally takes several years.
https://en.wikipedia.org/wiki?curid=65792544
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In response to increasing public pressure due to the changing needs of Baltimore's trade and commercial classes, political leaders introduced legislation establishing a high school. The resolution establishing the school was unanimously passed by the Baltimore City Council on March 7, 1839 and was signed into law by Mayor, Shepard C. Leakin. "The High School" opened with 46 pupils under the direction of Professor Nathan C. Brooks,(1809–1898), a locally-noted classical educator and poet, the first head of school of a new type of higher institution in Baltimore's developing public education system. "The High School" opened on October 20, 1839 and was initially housed in a rented building on Courtland Street (present-day Saint Paul Street/Place) "under the direction of Professor Nathan C. Brooks (1809–1898), a locally renowned Classics scholar. The school was housed at three different locations in its first three years of existence before returning to its original building on Courtland Street. The City Council in 1843 allocated $23,000 to acquire the nearby Assembly Rooms building at the northeast corner of East Fayette and Holliday Streets for the new school. The City Council in 1850 granted the Board of School Commissioners the right to confer graduates of the then-decade old high school with certificates of graduation, and the following year in the old Front Street Theatre, along the Jones Falls stream (between East Fayette and Lexington Streets), the school held its first commencement ceremony under the name of the "Central High School of Baltimore" with well-known influential civic citizen and lawyer Severn Teackle Wallis (1816–1894), as its first commencement speaker.
https://en.wikipedia.org/wiki?curid=713949
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Under the Indian Human Spaceflight Program, India was planning to send humans into space on its orbital vehicle Gaganyaan before August 2022, but it has been delayed to 2023, due to the COVID-19 pandemic. The Indian Space Research Organisation (ISRO) began work on this project in 2006. The initial objective is to carry a crew of two or three to low Earth orbit (LEO) for a 3-to-7-day flight in a spacecraft on a GSLV Mk III rocket and return them safely for a water landing at a predefined landing zone. On 15 August 2018, Indian Prime Minister Narendra Modi, declared India will independently send humans into space before the 75th anniversary of independence in 2022. In 2019, ISRO revealed plans for a space station by 2030, followed by a crewed lunar mission. The program envisages the development of a fully-autonomous orbital vehicle capable of carrying 2 or 3 crew members to an about low Earth orbit and bringing them safely back home.
https://en.wikipedia.org/wiki?curid=18896
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Slug production commenced in June 1944 and by September enough canned slugs had been accumulated to commence loading the first reactor. In August 1944, the process was improved by reducing the temperature of the copper–tin alloy by . This lifted the number of acceptable canned slugs from a few percent to more than 75 percent. In September, the hydraulic presses were abandoned in favor of a process in which the slugs, cans and tops were assembled manually in the solder bath. This increased the number of acceptable canned slugs to over ninety percent. The canned slugs were visually inspected for warps or defects. They were then subjected to the frost test. This involved cleaning the slug with carbon tetrachloride and sprayed with a nearly saturated solution of acenaphthene to produce a smooth white film on the surface. If there was a defect, the heat induced was above the melting point of acenaphthene and it melted at the point of the defect. Slugs were then tested by being exposed to steam at and for forty hours. Less than one faulty slug was found for each 2,000 tested. Those found to be defective had their coatings dissolved using a mixture of caustic soda and sodium nitrate, followed by an immersion In hydrofluoric acid and a final wash with nitric acid.
https://en.wikipedia.org/wiki?curid=72002318
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The mass-spring model (obtained from a polygonal mesh representation of the cloth) determines the internal spring forces acting on the nodes at each timestep (in combination with gravity and applied forces). Newton's second law gives equations of motion which can be solved via standard ODE solvers. To create high resolution cloth with a realistic stiffness is not possible however with simple explicit solvers (such as forward Euler integration), unless the timestep is made too small for interactive applications (since as is well known, explicit integrators are numerically unstable for sufficiently stiff systems). Therefore, implicit solvers must be used, requiring solution of a large sparse matrix system (via e.g. the conjugate gradient method), which itself may also be difficult to achieve at interactive frame rates. An alternative is to use an explicit method with low stiffness, with "ad hoc" methods to avoid instability and excessive stretching (e.g. strain limiting corrections).
https://en.wikipedia.org/wiki?curid=5917746
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Implementing MOFs in industry necessitates a thorough understanding of the mechanical properties since most processing techniques (e.g. extrusion and pelletization) expose the MOFs to substantial mechanical compressive stresses. The mechanical response of porous structures is of interest as these structures can exhibit unusual response to high pressures. While zeolites (microporous, aluminosilicate minerals) can give some insights into the mechanical response of MOFs, the presence of organic linkers as opposed to zeolites, makes for novel mechanical responses. MOFs are very structurally diverse meaning that it is challenging to classify all of their mechanical properties. Additionally, variability in MOFs from batch to batch and extreme experimental conditions (Diamond anvil cells) mean that experimental determination of mechanical response to loading is limited, however many computational models have been made to determine structure-property relationships. Main MOF systems that have been explored are zeolitic imidazolate frameworks (ZIFs), Carboxylate MOFs, Zirconium-based MOFs, among others. Generally, the MOFs undergo three processes under compressive loading (which is relevant in a processing context): amorphization, hyperfilling, and/or pressure induced phase transitions. During amorphization linkers buckle and the internal porosity within the MOF collapses. During hyperfilling the MOF which is being hydrostatically compressed in a liquid (typically solvent) will expand rather than contract due to a filling of pores with the loading media. Finally, pressure induced phase transitions where the structure of the crystal is altered during the loading are possible. The response of the MOF is predominantly dependent on the linker species and the inorganic nodes.
https://en.wikipedia.org/wiki?curid=9821563
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The progress made with SPARC has built off previously mentioned work on the ITER project and is aiming to utilize new technology in high-temperature superconductors (HTS) as a more practical material. HTS will enable reactor magnets to produce greater magnetic field and proportionally increase the transport processes necessary to generate energy. One of the largest material considerations is ensuring the inner wall will be able to handle the intense amounts of heat that will be generated (expected to approach 10 GW per square meter in heat flux from the plasma. Not only does this material need to survive, but it needs to withstand damage enough to avoid contaminating the core plasma. Challenges such as this are being actively considered and accounted for in the models / predictive calculations used in the design process.
https://en.wikipedia.org/wiki?curid=1690634
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Presented here is a model of a photon Monte Carlo method in a homogeneous infinite medium. The model is easily extended for multi-layered media, however. For an inhomogeneous medium, boundaries must be considered. In addition for a semi-infinite medium (in which photons are considered lost if they exit the top boundary), special consideration must be taken. For more information, please visit the links at the bottom of the page. We will solve the problem using an infinitely small point source (represented analytically as a Dirac delta function in space and time). Responses to arbitrary source geometries can be constructed using the method of Green's functions (or convolution, if enough spatial symmetry exists). The required parameters are the absorption coefficient, the scattering coefficient, and the scattering phase function. (If boundaries are considered the index of refraction for each medium must also be provided.) Time-resolved responses are found by keeping track of the total elapsed time of the photon's flight using the optical path length. Responses to sources with arbitrary time profiles can then be modeled through convolution in time.
https://en.wikipedia.org/wiki?curid=14308303
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The eastern edge of Pangea was encroached upon by a pair of extensive oceanic basins: The Neo-Tethys (or simply Tethys) and Paleo-Tethys Oceans. These extended from China to Iberia, hosting abundant marine life along their shallow tropical peripheries. They were divided from each other by a long string of microcontinents known as the Cimmerian terranes. Cimmerian crust had detached from Gondwana in the early Permian and drifted northwards during the Triassic, enlarging the Neo-Tethys Ocean which formed in their wake. At the same time, they forced the Paleo-Tethys Ocean to shrink as it was being subducted under Asia. By the end of the Triassic, the Paleo-Tethys Ocean occupied a small area and the Cimmerian terranes began to collide with southern Asia. This collision, known as the Cimmerian Orogeny, continued into the Jurassic and Cretaceous to produce a chain of mountain ranges stretching from Turkey to Malaysia.Pangaea was fractured by widespread faulting and rift basins during the Triassic—especially late in that period—but had not yet separated. The first nonmarine sediments in the rift that marks the initial break-up of Pangaea, which separated eastern North America from Morocco, are of Late Triassic age; in the United States, these thick sediments comprise the Newark Supergroup. Rift basins are also common in South America, Europe, and Africa. Terrestrial environments are particularly well-represented in the South Africa, Russia, central Europe, and the southwest United States. Terrestrial Triassic biostratigraphy is mostly based on terrestrial and freshwater tetrapods, as well as conchostracans ("clam shrimps"), a type of fast-breeding crustacean which lived in lakes and hypersaline environments.
https://en.wikipedia.org/wiki?curid=29989
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In 2010–2014, under the “Megagrant programs”, MCTUR launched the International Laboratory of Functional Materials Based on Glass named after Academician P. D. Sarkisov. The laboratory was initially headed by the Italian scientist Albert Paleari and the head of the Department of Chemical Technology of Glass and Sitalls Vladimir Sigaev. One of the laboratory's key contributions has been the creation of radioactive microspheres that could be potentially used for the treatment of oncological diseases. In 2017 the university also launched the International Center for Laser Technologies which has been investigating femtosecond laser modification of the structures of optical materials. The center is currently headed by Peter Kazansky a professor from the Russian Foundation for Advanced Research Projects in the Defense Industry, the center developed an "eternal archive disk" based on nanostructured glass. Distinctive features of this material include its durability, resistance to aggressive environments and potential to store large amounts of information. As of 2020, a prototype of a data storage medium with a diameter of 120mm has been developed.
https://en.wikipedia.org/wiki?curid=20001197
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Lindbergh sat in a cramped cockpit which was 94 cm wide, 81 cm long and 130 cm high (36 in × 32 in × 51 in). The cockpit was so small, Lindbergh could not stretch his legs, nevertheless it was to be his home for nearly two days and nights over the Atlantic. The "Spirit of St. Louis" was powered by a , air-cooled, nine-cylinder Wright J-5C Whirlwind radial engine. The engine was rated for a maximum operating time of 9,000 hours (more than one year if operated continuously) and had a special mechanism that could keep it clean for the entire New York-to-Paris flight. It was also, for its day, very fuel-efficient, enabling longer flights carrying less fuel weight for given distances. Another key feature of the Whirlwind radial engine was that it was rated to self-lubricate the engine's valves for 40 hours continuously. Lubricating, or "greasing," the moving external engine parts was a necessity most aeronautical engines of the day required, to be done manually by the pilot or ground crew prior to every flight and would have been otherwise required somehow to be done during the long flight.
https://en.wikipedia.org/wiki?curid=358988
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Aerial archaeology, specifically LIDAR, was used to study Caracol, a Mayan city in Belize, dated to 550-900 AD. Archaeologists Arlen and Diane Chase, from the University of Central Florida, worked for 25 years in the dense tropical rainforest, managing to map of settlement. At the end of the dry season of 2009, they embarked on four continuous days of LIDAR flying, followed by three weeks of analysis by remote sensing experts. This allowed them to rabidly surpass results of the prior 25 years, revealing over of city—a far larger area than expected. Furthermore, the landscape was modelled in 3D, leading to the discovery of possible new sites such as 'ruins, agricultural terraces and stone causeways' (to be investigated further for a greater understanding). We can thus see the impressive effect aerial methods can have on streamlining archaeological survey, and pushing the limits of what is possible.
https://en.wikipedia.org/wiki?curid=615752
1,268,382
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The seventh round was marked with the high 3½-½ victories of the top two seeds Russia and the United States against the Czech Republic and the only team with a perfect score and sole leader in the standings India, respectively. The three wins for the American team came from the games played from the second to the fourth board, where Hikaru Nakamura beat Baskaran Adhiban, Wesley So defeated Vidit Santosh Gujrathi and Sam Shankland beat S. P. Sethuraman; the game on the first board between Pentala Harikrishna and Fabiano Caruana was drawn. However, it did not seem to be a one-sided match as the final result may indicate, because the Indian players even had chances to win the games on the first and the fourth board. Caruana had a worse position during most of the game and seemed to be in trouble but Harikrishna mistakenly offered a queen exchange on move 35 that blew out his advantage. Shankland was in a desperate position against Sethuraman but the Indian was not able to finish the game and started making mistakes in the time trouble to lose his huge advantage and end up in an inferior position being two pawns down that resulted in a loss. Shankland said after the game that he was considering to resign but played on, because it was a team event with more on the line than just a personal result. He added that he had saved games with that bad position in the past but not against someone of Sethuraman's strength.
https://en.wikipedia.org/wiki?curid=51472590
1,939,834
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In vertebrates, the ventricular zone (VZ) is a transient embryonic layer of tissue containing neural stem cells, principally radial glial cells, of the central nervous system (CNS). The VZ is so named because it lines the ventricular system, which contains cerebrospinal fluid (CSF). The embryonic ventricular system contains growth factors and other nutrients needed for the proper function of neural stem cells. Neurogenesis, or the generation of neurons, occurs in the VZ during embryonic and fetal development as a function of the Notch pathway, and the newborn neurons must migrate substantial distances to their final destination in the developing brain or spinal cord where they will establish neural circuits. A secondary proliferative zone, the subventricular zone (SVZ), lies adjacent to the VZ. In the embryonic cerebral cortex, the SVZ contains intermediate neuronal progenitors that continue to divide into post-mitotic neurons. Through the process of neurogenesis, the parent neural stem cell pool is depleted and the VZ disappears. The balance between the rates of stem cell proliferation and neurogenesis changes during development, and species from mouse to human show large differences in the number of cell cycles, cell cycle length, and other parameters, which is thought to give rise to the large diversity in brain size and structure.
https://en.wikipedia.org/wiki?curid=47723048
1,695,442
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Over the years, many errors were found, and many of them were published in "Chess Life" in the column by Larry Evans . Over one hundred such errors were found and a mimeographed list of them was printed and circulated by Paul L. Crane and Rev. David Chew. An 18-page booklet containing over 200 corrections was published by Samuel Louie in 1990 and 1993. Despite these errors, the book remained in print in its original form. After many years, editor Burt Hochberg finally convinced the publisher to create a new edition. Endgame expert Pal Benko, whose own copy of the book contained hand-written notes of almost all of the errors, did the revision. The revised edition was published in 2003, but only in paperback. Benko converted it to the now universally-accepted algebraic chess notation. He also added some new material based on more recent analysis and added many new examples. He made many corrections, but a few errors remain. For example, Benko repeats Fine's claim that the endgame of two bishops and a knight against a rook is drawn with correct play . In fact, endgame tablebases show that the three minor pieces win . Howard Staunton, without the aid of computer analysis, had recognized this over 150 years earlier . Bernhard Horwitz and Josef Kling gave the same appraisal in 1851 .
https://en.wikipedia.org/wiki?curid=18529384
1,912,620
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After the February Revolution and the beginning of internal conflict within the army the Garfords began to be gradually withdrawn from the front. Later with the coming to power of the Bolsheviks, the Garford-Putilov armoured cars, like other armoured vehicles possessed by the army, were quickly seized by opposing sides in the civil war, although more of them ended up with the Bolsheviks. The Yaroslavl Uprising starting in July 1918 could be considered one of the first uses of the Garfords in the civil war. Despite having only a small force, rebels in the form of volunteers and detachments of the local police managed to establish control over Yaroslavl for a few days, completely clearing the town of Bolsheviks. On the 6 July they were joined by the armoured division of lieutenant Supponin including 25 officers, several machine guns and two Garford-Putilov armoured cars. Despite their initial success the uprising did not receive the necessary support from the White Army which was operating at that time in central Russia. By the 12 July the Reds had brought up heavy artillery, armoured trains and even some aircraft and begun a systematic siege of the city. During the defence of the city the Garfords were used as mobile strongpoints although a lack of ammunition did not allow them to be used effectively. Yaroslavl fell on the 21 July. The Garfords were most likely captured by units of the Red Army.
https://en.wikipedia.org/wiki?curid=26354934
1,477,267
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In terms of evolution, the oldest physiological role of AhR is in development. AhR is presumed to have evolved from invertebrates where it served a ligand-independent role in normal development processes. The AhR homolog in "Drosophila, spineless "(ss) is necessary for development of the distal segments of the antenna and leg. "Ss" dimerizes with "tango "(tgo), which is the homolog to the mammalian Arnt, to initiate gene transcription. Evolution of the receptor in vertebrates resulted in the ability to bind ligand and might have helped humans evolve to tolerate smoke of fires. In developing vertebrates, AhR seemingly plays a role in cellular proliferation and differentiation. Despite lacking a clear endogenous ligand, AhR appears to play a role in the differentiation of many developmental pathways, including hematopoiesis, lymphoid systems, T-cells, neurons, and hepatocytes. AhR has also been found to have an important function in hematopoietic stem cells: AhR antagonism promotes their self-renewal and ex-vivo expansion and is involved in megakaryocyte differentiation. In adulthood, signaling is associated with the stress response and mutations in AhR are associated with major depressive disorder.
https://en.wikipedia.org/wiki?curid=4976535
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The backstory begins with the USA becoming embroiled in a major conflict in Central America in the 1980s, causing a significant economic collapse ending in a military coup resulting in the European Common Market and Japan as superpowers and the Soviet Union not collapsing. This is coupled with the development of orbital habitats that become independent states and the rise of megacorporations that fight amongst themselves for dominance. Other disasters have included food blights causing disastrous famines, and by the late 1990s, the Middle East is a radioactive desert after a nuclear conflict. Bioengineering, against a backdrop of warfare, has resulted in the rapid development of cybernetic prosthetics and direct human-machine interfaces. With the lack of government and police due to the Central America wars and economic situation, casual violence is endemic. Many also suffer from "technoshock," an inability to cope with a world of synthetic muscle tissue, organic circuits, and designer drugs.
https://en.wikipedia.org/wiki?curid=151821
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The concerns for possible health risks related to the residual radioactivity of the gemstones led to government regulations in many countries. In the United States, the Nuclear Regulatory Commission (NRC) has set strict limits on the allowable levels of residual radioactivity before an irradiated gemstone can be distributed in the country. All neutron- or electron beam-irradiated gemstones must be tested by an NRC-licensee prior to release for sales; however, if treated in a cobalt-60 gamma ray facility they do not become radioactive and thus are not under NRC authority. In India, the Board of Radiation and Isotope Technology (BRIT), the industrial unit of the Department of Atomic Energy, conducts the process for private sectors. In Thailand, the Office of Atoms for Peace (OAP) did the same, irradiating of gemstones from 1993 to 2003, until the Thailand Institute of Nuclear Technology was established in 2006 and housed the Gem Irradiation Center to provide the service.
https://en.wikipedia.org/wiki?curid=20521094
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As part of the preparations for the Battle of Messines, the 1st Australian Tunnelling Company was tasked with ensuring that the tunnels and explosives beneath Hill 60 and The Caterpillar remained intact and undiscovered by the Germans over the next seven months. Drainage and ventilation shafts had to be dug in the unfamiliar blue clay, and there was a constant danger of collapse, particularly in the part of the gallery leading to The Caterpillar, which passed under the railway line. At the same time, listening posts had to be maintained to detect enemy action. These posts were only a few metres underground and therefore susceptible to collapse during bombardments. The German mining units were constantly trying to find British tunnels and numerous counter tunnels had to be dug towards the German excavations so that they could be mined with small charges and destroyed. In April 1917, German infantry conducted a raid into the British lines in an attempt to find the entrances to the British mine galleries but failed to do so. On 25 April 1917, a detonator exploded in the Australian underground HQ, killing ten men. The Official Australian History states that at Hill 60, "underground warfare reached a tension which was not surpassed anywhere else on the British front". It is estimated that altogether approximately thirty Australian tunnellers were killed at Hill 60. The mines at Messines were eventually detonated on 7 June 1917, creating craters.
https://en.wikipedia.org/wiki?curid=46673504
1,538,090
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In March 2008, NC State launched the University Sustainability Office in order to address environmental concerns on campus. The university has established a commitment to reduce its annual energy consumption per square foot by at least 4% over a 10-year period. In addition, the university has surpassed the Executive Order 156 goal of diverting 40 percent of their solid waste stream from the landfill through a variety of campus reuse and recycling programs. NC State incorporates locally grown, organic, and free range foods into dining service meals at several events such as Earth Week's EarthFest and the annual All Carolinas Meal with foods local to the Carolinas. Examinations of the campus' sustainability practices by the Sustainable Endowments Institute resulted in a "B+" grade for NC State on the College Sustainability Report Card 2011. In 2013 the University Housing department agreed to incorporate a new living and learning community known as "EcoVillage." Members of EcoVillage are housed in Bragaw Dormitory located on West Campus. Members of EcoVillage complete numerous volunteer based sustainability trips every semester and attend various discussions about how to improve and further the university's reach into sustainability.
https://en.wikipedia.org/wiki?curid=72544
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John Keats wrote about an American guerrilla leader in World War II: Colonel Wendell Fertig, who in 1942 organized a large guerrilla force which harassed the Japanese occupation forces on the Philippine Island of Mindanao all the way up to the liberation of the Philippines in 1945. His abilities were later utilized by the United States Army, when Fertig helped found the United States Army Special Warfare School at Fort Bragg, North Carolina. Others included Col. Aaron Bank, Col. Russell Volckmann, and Col. William R. Peers. Volckmann commanded a guerrilla force which operated out of the Cordillera of Northern Luzon in the Philippines from the beginning of World War II to its conclusion. He remained in radio contact with US Forces, prior to the invasion of Lingayen Gulf. Peers, who later became a general, commanded OSS Detachment 101 in Burma and authored a book on its operations following the war. Because the 101 was never larger than a few hundred Americans, it relied on support from various Burmese tribal groups. In particular, the vigorously anti-Japanese Kachin people were vital to the unit's success.
https://en.wikipedia.org/wiki?curid=22634688
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Very short or very similar sequences can be aligned by hand. However, most interesting problems require the alignment of lengthy, highly variable or extremely numerous sequences that cannot be aligned solely by human effort. Instead, human knowledge is applied in constructing algorithms to produce high-quality sequence alignments, and occasionally in adjusting the final results to reflect patterns that are difficult to represent algorithmically (especially in the case of nucleotide sequences). Computational approaches to sequence alignment generally fall into two categories: "global alignments" and "local alignments". Calculating a global alignment is a form of global optimization that "forces" the alignment to span the entire length of all query sequences. By contrast, local alignments identify regions of similarity within long sequences that are often widely divergent overall. Local alignments are often preferable, but can be more difficult to calculate because of the additional challenge of identifying the regions of similarity. A variety of computational algorithms have been applied to the sequence alignment problem. These include slow but formally correct methods like dynamic programming. These also include efficient, heuristic algorithms or probabilistic methods designed for large-scale database search, that do not guarantee to find best matches.
https://en.wikipedia.org/wiki?curid=149289
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Sugar in the form of glucose is the main nutrient used by animal and plant cells in respiration. Cellular respiration involving oxygen is called aerobic respiration, which has four stages: glycolysis, citric acid cycle (or Krebs cycle), electron transport chain, and oxidative phosphorylation. Glycolysis is a metabolic process that occurs in the cytoplasm whereby glucose is converted into two pyruvates, with two net molecules of ATP being produced at the same time. Each pyruvate is then oxidized into acetyl-CoA by the pyruvate dehydrogenase complex, which also generates NADH and carbon dioxide. Acetyl-Coa enters the citric acid cycle, which takes places inside the mitochondrial matrix. At the end of the cycle, the total yield from 1 glucose (or 2 pyruvates) is 6 NADH, 2 FADH, and 2 ATP molecules. Finally, the next stage is oxidative phosphorylation, which in eukaryotes, occurs in the mitochondrial cristae. Oxidative phosphorylation comprises the electron transport chain, which is a series of four protein complexes that transfer electrons from one complex to another, thereby releasing energy from NADH and FADH that is coupled to the pumping of protons (hydrogen ions) across the inner mitochondrial membrane (chemiosmosis), which generates a proton motive force. Energy from the proton motive force drives the enzyme ATP synthase to synthesize more ATPs by phosphorylating ADPs. The transfer of electrons terminates with molecular oxygen being the final electron acceptor.
https://en.wikipedia.org/wiki?curid=9127632
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The currently available magnetogenetics techniques combine targeted magnetic particle delivery with magnetic stimulation. This allows for the accurate spatial control of the targeted intervention (i.e. inhibition or excitation of the target neurons in target brain regions). The temporal precision seems to vary depending on the threshold of ion channels, and the frequency, and the intensity of the stimulation. Experiments can be devised where the magnetic stimulation triggers some sort of cellular ("in vitro") or behavioral ("in vivo") response. A U.S. patent awarded to Henricus Loos specifies that such experiments are envisioned to be utilized in animal control, noting that "The nervous system of mammals is similar to that of humans, so that sensory resonances are expected to exist."That and other patents, Loos notes, suggest that magnetogenetics can be used to induce sleep, sexual arousal, vertigo and reduction of cognitive processes, suggesting that not all uses of the invention may be strictly benevolent medical interventions.
https://en.wikipedia.org/wiki?curid=47814884
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Since trees can grow larger than other plant life-forms, there is the potential for a wide variety of forest structures (or physiognomies). The infinite number of possible spatial arrangements of trees of varying size and species makes for a highly intricate and diverse micro-environment in which environmental variables such as solar radiation, temperature, relative humidity, and wind speed can vary considerably over large and small distances. In addition, an important proportion of a forest ecosystem's biomass is often underground, where soil structure, water quality and quantity, and levels of various soil nutrients can vary greatly. Thus, forests are often highly heterogeneous environments compared to other terrestrial plant communities. This heterogeneity in turn can enable great biodiversity of species of both plants and animals. Some structures, such as tree ferns may be keystone species for a diverse range of other species.
https://en.wikipedia.org/wiki?curid=2215958
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On October 3, 2015, Smith was inaugurated as the 15th President of Swarthmore College in Swarthmore, Pennsylvania. Her position as the first African-American president drew many of the speakers to discuss the growing racial divides in the U.S. and academia. The president of Brown University at the time, Ruth Simmons, noted that "the long shadow of racial and gender bias still lingers in this society and will influence some of what she will experience on a day to day basis." To a crowd of 1,200, Smith addressed her inauguration by stating:How does greater diversity make us better? Our ability to discover and communicate new knowledge; to find solutions to intractable problems in science and technology, public policy, and the social sciences; and to analyze, contextualize, and express the highest ideals of the human spirit in the humanities and the arts – these are all enhanced when we earnestly engage with others whose perspectives and experiences differ from our own.
https://en.wikipedia.org/wiki?curid=45467234
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While QKD is secure, its practical application faces some challenges. There are in fact limitations for the key generation rate at increasing transmission distances. Recent studies have allowed important advancements in this regard. In 2018, the protocol of twin-field QKD was proposed as a mechanism to overcome the limits of lossy communication. The rate of the twin field protocol was shown to overcome the secret key-agreement capacity of the lossy communication channel, known as repeater-less PLOB bound, at 340 km of optical fiber; its ideal rate surpasses this bound already at 200 km and follows the rate-loss scaling of the higher repeater-assisted secret key-agreement capacity (see figure 1 of and figure 11 of for more details). The protocol suggests that optimal key rates are achievable on "550 kilometers of standard optical fibre", which is already commonly used in communications today. The theoretical result was confirmed in the first experimental demonstration of QKD beyond the PLOB bound which has been characterized as the first "effective" quantum repeater. Notable developments in terms of achieving high rates at long distances are the sending-not-sending (SNS) version of the TF-QKD protocol. and the no-phase-postselected twin-field scheme.
https://en.wikipedia.org/wiki?curid=28676005
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In Italy, known as "Laurea in Fisioterapia (abilitante alla professione sanitaria di Fisioterapista)", it is a three-year full-time degree taught in the Faculty of Medicine of many Italian Universities. The course is an intensive mix of class time and mandatory internship right from the first year. Internship is such an important part that the number of hours dedicated to practice progressively increases reaching half of the program by the third year. There are no special requirements to be admitted to the bachelor's degree; students from various backgrounds can access the program, previous passing an 80 question pre selection test. This test is implemented to all those courses known as "numero chiuso" or close access to limit the number of participants. Depending on the Faculty and course between 30 and 400 positions are available each year. To be selected one has not only pass the examination but finish in the top positions required to enter. For all para-medical degrees each Institution can select its own test which it held simultaneously in all Universities, whereas for Medicine the test are administered by the Ministry of Education.
https://en.wikipedia.org/wiki?curid=24210226
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Carbon monoxide dehydrogenase is closely associated with the regulation of atmospheric CO and CO levels, maintaining optimal CO levels suitable for other forms of life. Microbial organisms rely on these enzymes for both energy conservation along with CO fixation. Often encoding for and synthesizing multiple unique forms of CODH for designated use. Further research into specific types of CODH show CO being used and condensed with CH (Methyl groups) to form Acetyl-CoA. Anaerobic micro-organisms like Acetogens undergo the Wood-Ljungdahl Pathway, relying on CODH to produce CO by reduction of CO needed for the synthesis of Acetyl-CoA from a methyl, coenzyme a (CoA) and corrinoid iron-sulfur protein. Other types show CODH being utilized to generate a proton motive force for the purposes of energy generation. CODH is used for the CO oxidation, producing two protons which are subsequently reduced to form dihydrogen (H, known colloquially as molecular hydrogen), providing the necessary free energy to drive ATP generation.
https://en.wikipedia.org/wiki?curid=14132547
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Simulations can be performed offline (as in apart from when they are viewed) in the development of special effects for movies. Speed is therefore not strictly a necessity in the production of special effects but is still desirable for reasonably responsive feedback and because the hardware required for slower methods is more expensive. However, physically based animation is still preferred because slower, more accurate methods can be costly and limiting. The physical accuracy of small details in a special effect are not meaningful to their visual appeal, restrict the amount of control that artists and directors can exert over behavior, and increase the monetary cost and time required to achieve results. It is necessary to be able to dictate the high level behavior of physically inspired effects in movies in order to achieve a desired artistic direction, but scripting physical behaviors on the level of small details can be unfeasible when fluids, smoke, or many individual objects are involved. Physically based animation generally affords more artist control over the appearance of simulated results and is also more convenient when desired effects might bend or defy physics.
https://en.wikipedia.org/wiki?curid=38539971
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Since the time of Pierre-Simon Laplace (1799), scientists had been puzzled as to why pressure variations measured at the Earth's surface associated with the semi-diurnal solar tide dominate those of the diurnal tide in amplitude, when intuitively one would expect the diurnal passage of the sun to dominate. Lord Kelvin (1882) had proposed the so-called "resonance" theory, wherein the semi-diurnal tide would be "selected" over the diurnal oscillation if the atmosphere was somehow able to oscillate freely at a period of very close to 12 hours, in the same way that overtones are selected on a vibrating string. By the second half of the twentieth century, however, observations had failed to confirm this hypothesis, and an alternative hypothesis was proposed that something must instead suppress the diurnal tide. In 1961, Manfred Siebert suggested that absorption of solar insolation by tropospheric water vapour might account for the reduction of the diurnal tide. However, he failed to include a role for stratospheric ozone. This was rectified in 1963 by the Australian physicist Stuart Thomas Butler and his student K.A. Small who showed that stratospheric ozone absorbs an even greater part of the solar insolation.
https://en.wikipedia.org/wiki?curid=182075
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In 1980 Morawetz won a Lester R. Ford Award. In 1981, she became the first woman to deliver the Gibbs Lecture of The American Mathematical Society, and in 1982 presented an Invited Address at a meeting of the Society for Industrial and Applied Mathematics. She received honorary degrees from Eastern Michigan University in 1980, Brown University, and Smith College in 1982, and Princeton in 1990. In 1983 and in 1988, she was selected as a Noether Lecturer. She was elected to the American Academy of Arts and Sciences in 1984. She was named Outstanding Woman Scientist for 1993 by the Association for Women in Science. In 1995, she became the second woman elected to the office of president of the American Mathematical Society. In 1996, she was awarded an honorary ScD degree by Trinity College Dublin, where her father JL Synge had been a student and later a faculty member. That same year, she was elected to the American Philosophical Society. In 1998 she was awarded the National Medal of Science; she was the first woman to receive the medal for work in mathematics. In 2004 she received the Leroy P. Steele Prize for Lifetime Achievement. In 2006 she won the George David Birkhoff Prize in Applied Mathematics. In 2012 she became a fellow of the American Mathematical Society.
https://en.wikipedia.org/wiki?curid=1254108
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More important than political differences was a shared sense of British national identity. Britain was seen as an important player in world affairs, its economic and military weaknesses offset by its membership of NATO and the Group of Seven, its then active membership of the European Union, its permanent seat on the UN Security Council, its leadership of the Commonwealth of Nations, and the nuclear Special Relationship with the US. To accept a position of inferiority to its ancient rival, France, was unthinkable. Moreover, the UK sees itself as a force for good in the world with a moral duty to intervene, with military force if need be, to defend both its interests and its values. By the 1980s, possession of nuclear weapons was considered a visible sign of Britain's enduring status as a great power in spite of the loss of the British Empire, and had become a component of the national self-image.
https://en.wikipedia.org/wiki?curid=9095461
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With the first prototype's repairs completed, it also joined the flight test program, completing captive flights. While in flight, the Goblin was stable, easy to fly, and recoverable from spins, although initial estimates of a 648 mph (1,043 km/h) top speed proved optimistic. The first test flights revealed that turbulence during approach to the B-29 was significant, leading to the addition of upper and lower fins at the extreme rear fuselage, as well as two wingtip fins to compensate for the increased directional instability in docking. All the initial flights had the hook secured in a fixed position, but when the hook was stowed and later raised, the resulting buffeting added to the difficulty in attempting a hookup. To address the problem, small aerodynamic fairings were added to the hook well that reduced the buffeting when the hook was extended and retracted. When testing resumed, on the 18 March 1949 test flight, Schoch continued to have difficulty in hooking up, striking and damaging the trapeze's nose-stabilizing section, before resorting to another emergency belly landing. After repairs to the trapeze, Schoch flew the first prototype on 8 April 1949, completing a 30-minute free flight test, but after three attempts, abandoned his efforts and resorted to another belly landing at Muroc.
https://en.wikipedia.org/wiki?curid=307179
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Comparative musicology, an initial term intended to differentiate what would become ethnomusicology and musicology, was the area of study concerned with utilizing methods of acoustics to measure pitches and intervals, quantitatively comparing different kinds of music. Because of the high density of Europeans and Euro-Americans engaged with the area's research, comparative musicology primarily surveyed the music of non-Western oral folk traditions and then compared them against western conceptions of music. After 1950, scholars sought to define the field more broadly and to eradicate these notions of ethnocentrism inherent to the study of comparative musicology; for example, Polish scholar Mieczyslaw Kolinski proposed that scholars in the field focus on describing and understanding musics within their own contexts. Kolinski also urged the field to move beyond ethnocentrism even as the term ethnomusicology grew in popularity as a replacement for what was once described by comparative musicology. He noted in 1959 that the term ethnomusicology limited the field, both by imposing "foreignness" from a western standpoint and therefore excluding the study of western music with the same attention to cultural context that is given to otherized traditions, and by containing the field within anthropological problems rather than extending musical study to limitless disciplines within the humanities and the social sciences. Throughout critical developmental years in the 1950s and 1960s, ethnomusicologists shaped and legitimized the fledgling field through discussions of the responsibilities of ethnomusicologists and the ethical implications of ethnomusicological study, articulations of ideology, suggestions for practical methods of research and analysis, and definitions of music itself. It was also at this time that the emphasis of ethnomusicological work shifted from analysis to fieldwork, and the field began to develop research methods to center fieldwork over the traditional "armchair" work.
https://en.wikipedia.org/wiki?curid=65721530
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Genetic models of SLOS are created by knocking out the "DHCR7" gene. One study used homologous recombination to disrupt "DCHR7" in mouse embryonic stem cells. Similar to what is found in humans, heterozygous mice (having only one mutated allele) were phentoypically normal, and were crossed to produce pups (young mice) homozygous for the mutated allele. Although these pups died within the first day of life due to their inability to feed, they showed characteristics similar to humans with SLOS. They had decreased levels of cholesterol, increased levels of 7- and 8DHC, showed less growth and smaller birth weights, had craniofacial malformations, and less movement. Many also had a cleft palate, and decreased neuronal responses to glutamate. Overall however, the pups had fewer dysmorphic features than human patients with SLOS; they did not present limb, renal, adrenal or central nervous system malformations. This is explained by the fact that in rodents, maternal cholesterol can cross the placenta, and actually appears to be essential for the development of the fetus. In humans, very little maternal cholesterol is transferred to the fetus. In sum, the genetic mouse model is helpful to explain the neuropathophysiology of SLOS.
https://en.wikipedia.org/wiki?curid=1907985
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Keynesian-like policies were adopted by Sweden and Germany, but Sweden was seen as too small to command much attention, and Keynes was deliberately silent about the as he was dismayed by its imperialist ambitions and its treatment of Jews. Apart from Great Britain, Keynes's attention was primarily focused on the United States. In 1931, he received considerable support for his views on counter-cyclical public spending in Chicago, then America's foremost center for economic views alternative to the mainstream. However, orthodox economic opinion remained generally hostile regarding fiscal intervention to mitigate the depression, until just before the outbreak of war. In late 1933 Keynes was persuaded by Felix Frankfurter to address President Roosevelt directly, which he did by letters and face to face in 1934, after which the two men spoke highly of each other. However, according to Skidelsky, the consensus is that Keynes's efforts began to have a more than marginal influence on US economic policy only after 1939.
https://en.wikipedia.org/wiki?curid=37973
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Dan Hartman, the program manager for Gateway, on 30 March 2020, told "Ars Technica" that the benefits of using Gateway are extending the mission duration, buying down risk, providing research capability and the capability to re-use ascent modules.When you go single, I'll say direct mission to the Moon, you're limited on the supplies, either with the Lander or with Orion. With the Gateway, with just with one logistics module, we think we can extend to about twice the mission duration, so 30 days to 60 days. Obviously, the more crew time you have in lunar orbit helps us with research in the human aspects of living in deep space. The more duration we have, certainly that'll help us buy down significant risk with the extreme environments that we're going to be subjecting our crews to. Because we've got to go figure out how to operate in deep space. Obviously we'll demonstrate new hardware and offer that sustainable flexible path for our Lunar Lander system. With the Gateway, the thinking is we'll be able to reuse the ascent modules potentially multiple times. And again, if we can get mission duration beyond the 30 days, it's going to offer us some additional environmental capabilities. We think it's a tremendous risk buy down asset, not only to explore the Moon sustainably, but to prove out some things that we need to do to get to Mars.
https://en.wikipedia.org/wiki?curid=53648310
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The EDHI program has developed in efficiency over the past few decades. The Center for Disease Control (CDC) initially began mandating EDHI programs in each state in 2000, when the first funds were authorized from Congress to support its development. The CDC claimed deaf and hard of hearing (DHH) children to be endanger of potential developmental emergencies and thus it was necessary that they get diagnosed as early after birth as possible. There have been a variety of organizations involved in establishing early diagnosis and intervention treatment, many of which are branches under American Academy of Pediatrics (AAP). After 17 years, EDHI federally mandated through a law passed on October 18, 2017, when President Trump signed the Early Hearing Detection and Intervention (EHDI) Act (PL 115-71). In this act, three main U.S. Department of Health and Human Services (HHS) agencies, the (CDC), Health Resources and Services Administration (HRSA), and the National Institutes of Health (NIH), are required to work together to maintain, build up, and support EDHI programs in all the territories of the US.
https://en.wikipedia.org/wiki?curid=4739983
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The proof-of-concept is obviously extremely inefficient as the amount of computation necessary to merely send the packets in the first place easily exceeds the computations leeched from the other program; the 3-SAT problem would be solved much more quickly if just analyzed locally. In addition, in practice packets would probably have to be retransmitted occasionally when real checksum errors and network problems occur. However, parasitic computing on the level of checksums is a demonstration of the concept. The authors suggest that as one moves up the application stack, there might come a point where there is a net computational gain to the parasite - perhaps one could break down interesting problems into queries of complex cryptographic protocols using public keys. If there was a net gain, one could in theory use a number of control nodes for which many hosts on the Internet form a distributed computing network completely unawares.
https://en.wikipedia.org/wiki?curid=23985
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The current consensus on the "rate" of pycnonuclear reactions is not coherent. There are currently a lot of uncertainties to consider when modelling the rate of pycnonuclear reactions, especially in spaces with high numbers of free particles. The primary focus of current research is on the effects of crystal lattice deformation and the presence of free neutrons on the reaction rate. Every time fusion occurs, nuclei are removed from the crystal lattice - creating a defect. The difficulty of approximating this model lies within the fact that the further changes occurring to the lattice and the effect of various deformations on the rate are thus far unknown. Since neighbouring lattices can affect the rate of reaction too, negligence of such deformations could lead to major discrepancies. Another confounding variable would be the presence of free neutrons in the crusts of neutron stars. The presence of free neutrons could potentially affect the Coulomb barrier, making it either taller or thicker. A study published by D.G. Yakovlev in 2006 has shown that the rate calculation of the "first" pycnonuclear fusion of two <chem>^{34}Ne</chem> nuclei in the crust of a neutron star can have an uncertainty magnitude of up to "seven". In this study, Yakovlev also highlighted the uncertainty in the threshold of pycnonuclear fusion (e.g., at what density it starts), giving the approximate density required for the start of pycnonuclear fusion of formula_8g cm, arriving at a similar conclusion as Haesnel and Zdunik. According to Haesnel and Zdunik, additional uncertainty of rate calculations in neutron stars can also be due to uneven distribution of the crustal heating, which can impact the thermal states of neutron stars before and after accretion.
https://en.wikipedia.org/wiki?curid=71465792
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In 2010–11, Curry appeared in 74 games (all starts), averaging 18.6 points, 3.9 rebounds, 5.8 assists and 1.47 steals in 33.6 minutes per contest. His free throw percentage of .934 (212–227 FT) established a new Warriors single-season record, surpassing the previous mark of .924 set by Rick Barry in 1977–78. He also became the first Warriors player to lead the NBA in free throw percentage since Mark Price in 1996–97. Curry registered 20-or-more points 35 times, including seven 30-plus performances. He posted a season-high 39 points and a then career-high 14 field goals (on 20 FGA) against the Oklahoma City Thunder on December 5. In February 2011, during All-Star Weekend, Curry won the Skills Challenge and registered 13 points, eight assists and six rebounds in 28 minutes as a member of the Sophomore squad in the Rookie Challenge. In May 2011, he was named the recipient of the NBA Sportsmanship Award, and underwent surgery on his right ankle.
https://en.wikipedia.org/wiki?curid=5608488
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The modern explanation for the metric expansion of space was proposed by physicist Alan Guth in 1979 while investigating the problem of why no magnetic monopoles are seen today. Guth found in his investigation that if the universe contained a field that has a positive-energy false vacuum state, then according to general relativity it would generate an "exponential expansion of space". It was very quickly realized that such an expansion would resolve many other long-standing problems. These problems arise from the observation that to look as it does today, the universe would have to have started from very finely tuned, or "special" initial conditions at the Big Bang. Inflation theory largely resolves these problems as well, thus making a universe like ours much more likely in the context of Big Bang theory. According to Roger Penrose, inflation does not solve the main problem it was supposed to solve, namely the incredibly low entropy (with "unlikeliness" of the state on the order of 1/10 ⁠) of the early Universe contained in the "gravitational conformal degrees of freedom" (in contrast to fields degrees of freedom, such like the cosmic microwave background whose smoothness can be explained by inflation). Thus, he puts forward his scenario of the evolution of the Universe: conformal cyclic cosmology.
https://en.wikipedia.org/wiki?curid=5985207
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A major critique of development from anthropologists came from Arturo Escobar's seminal book "Encountering Development", which argued that Western development largely exploited non-Western peoples and enacted an Orientalism (see Edward Said). Escobar even sees international development as a means for the Occident to keep control over the resources of former colonies. Escobar shows that, between 1945 and 1960, the former colonies were going through the decolonization era, and the development plan helped to maintain the third world's dependency on the old metropole. Development projects themselves flourished in the wake of World War II, and during the Cold War, when they were developed to (1) stop the spread of communism with the spread of capitalist markets, and (2) create more prosperity for the West and its products by creating a global consumer demand for finished Western products abroad. Some scholars blame the different agents for having only considered a small aspect of the local people's lives without analyzing broader consequences, while others like dependency theory or Escobar argue that development projects are doomed to failure for the fundamental ways they privilege Western industry and corporations. Escobar's argument echos the earlier work of dependency theory and follows a larger critique more recently posed by Michel Foucault and other post-structuralists.
https://en.wikipedia.org/wiki?curid=3176466
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Instead of the seconds pendulum method, the commission – whose members included Lagrange, Laplace, Monge and Condorcet – decided that the new measure should be equal to one ten-millionth of the distance from the North Pole to the Equator (the quadrant of the Earth's circumference), measured along the meridian passing through Paris. Apart from the obvious consideration of safe access for French surveyors, the Paris meridian was also a sound choice for scientific reasons: a portion of the quadrant from Dunkirk to Barcelona (about 1000 km, or one-tenth of the total) could be surveyed with start- and end-points at sea level, and that portion was roughly in the middle of the quadrant, where the effects of the Earth's oblateness were expected to be the largest. The Spanish-French geodetic mission had confirmed that the acceleration of a body near the surface of the Earth is due to the combined effects of gravity and centrifugal acceleration. Indeed, we know now that the resulting acceleration towards the ground is about 0.5% greater at the poles than at the Equator. It follows that the polar diameter of the Earth is smaller than its equatorial diameter. The Academy of Sciences planned to infer the flattening of the Earth from both the length's differences between meridional portions corresponding to one degree of latitude and the variations of gravitational acceleration (see Clairaut's theorem). Jean-Baptiste Biot and François Arago published in 1821 their observations completing those of Delambre and Mechain. It was an account of the length's variation of the degrees of latitude along the Paris meridian as well as the account of the variation of the seconds pendulum's length along the same meridian. The seconds pendulum's length was a means to measure "g", the local acceleration resulting from combination of local gravity and centrifugal acceleration, which varies with latitude (see Earth's gravity).
https://en.wikipedia.org/wiki?curid=28200487
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In 2008, California governor Arnold Schwarzenegger signed two joined bills, AB 1879 and SB 507, which created California's Green Chemistry Initiative (CGCI). AB 1879 increases regulatory authority over chemicals in consumer products. The law established an advisory panel of scientists, known as the green ribbon science panel, to guide research in chemical policy, create regulations for assessing alternatives, and set up an internet database of research on toxins. SB 509 was designed to ensure that information regarding the hazard traits, toxicological and environmental endpoints, and other vital data is available to the public, to businesses, and to regulators in a Toxics Information Clearinghouse. This legislation marks the biggest leap forward in California chemicals policy in nearly two decades and is intended to improve the health and safety of all Californians by providing the Department of Toxic Substances Control (DTSC) with the authority to control toxic substances in consumer products.
https://en.wikipedia.org/wiki?curid=31677000
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The Automatic Train Protection sub-system uses coded track circuit technology originally supplied by Rochester, New York-based General Railway Signal when the line was constructed in the 1970s. It is a life-critical system that provides a continuous stream of information to the train regarding the maximum safe speed via the running rails. Speed commands are designed to ensure trains maintain a safe stopping distance from any obstruction and do not exceed the speed limit for any segment of track. The system stops trains in advance of any other train traffic, and before stop signals at interlockings. The cab signalling system relies on track circuits to detect track occupancy, and thus send the appropriate speed code. Although the ATP system was designed to be fail-safe, the track circuit control equipment on which it relies has been prone to parasitic oscillations which can cause the system intermittently to fail to detect the presence of a train. This resulted in the 2009 collision, after which Metro began to operate all trains manually. In September 2014, Metro began reintroducing its computerized control system after taking a number of measures to avoid accidents similar to the 2009 accident.
https://en.wikipedia.org/wiki?curid=5559789
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Perceptual control theory (PCT) is a model of behavior based on the properties of negative feedback control loops. A control loop maintains a sensed variable at or near a reference value by means of the effects of its outputs upon that variable, as mediated by physical properties of the environment. In engineering control theory, reference values are set by a user outside the system. An example is a thermostat. In a living organism, reference values for controlled perceptual variables are endogenously maintained. Biological homeostasis and reflexes are simple, low-level examples. The discovery of mathematical principles of control introduced a way to model a negative feedback loop closed through the environment (circular causation), which differs fundamentally from theories of behaviorism and cognitive psychology which model stimuli as causes of behavior (linear causation). PCT research is published in experimental psychology, neuroscience, ethology, anthropology, linguistics, sociology, robotics, developmental psychology, organizational psychology and management, and a number of other fields. PCT has been applied to design and administration of educational systems, and has led to a psychotherapy called the method of levels.
https://en.wikipedia.org/wiki?curid=1678822
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T cells must reproduce after arriving at the tumor site to further increase their numbers, survive the TME's hostile elements and migrate through the stroma to the cancer cells. The TME obstructs all three activities. The draining lymph nodes are the likely location for T cell clonal reproduction, although this also occurs within the tumor. Preclinical models suggest that the TME is the major site of cancer-specific T cell cloning and that the CD8 T cell replicative response there is orchestrated by the CD103, Baft3-dependent DC, which can efficiently cross-present cancer cell antigens, suggesting that therapeutic interventions that enhance CD103 contribute to tumor control. Among such strategies are antibodies to the interleukin-10 receptor (IL10R). In a mammary carcinoma mouse model it neutralized the effects of TAM-produced IL10, relieved the suppression of IL12 production by intratumoral DCs and improved the CD8 T cell–dependent antitumor effects of chemotherapy. A similar outcome was achieved by neutralizing macrophage colony-stimulating factor 1, which impaired the intratumoral accumulation of TAMs. Another strategy is the administration of antibody-interferon-β (IFN-β) complexes that activate intratumoral DCs to cross-present antigen to CD8 T cells. They are targeted against oncogenic receptors such as epidermal growth factor receptor (EGFR).
https://en.wikipedia.org/wiki?curid=38925137
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In trying to show that quantum mechanics was not a complete theory, Einstein started with the theory's prediction that two or more particles that have interacted in the past can appear strongly correlated when their various properties are later measured. He sought to explain this seeming interaction classically, through their common past, and preferably not by some "spooky action at a distance". The argument is worked out in a famous paper, Einstein, Podolsky, and Rosen (1935; abbreviated EPR) setting out what is now called the [[EPR paradox]]. Assuming what is now usually called [[local realism]], EPR attempted to show from quantum theory that a particle has both position and momentum simultaneously, while according to the [[Copenhagen interpretation]], only one of those two properties actually exists and only at the moment that it is being measured. EPR concluded that quantum theory is incomplete in that it refuses to consider physical properties that objectively exist in nature. (Einstein, Podolsky, & Rosen 1935 is currently Einstein's most cited publication in physics journals.) In the same year, [[Erwin Schrödinger]] used the word "entanglement" and declared: "I would not call that "one" but rather "the" characteristic trait of quantum mechanics." Ever since Irish physicist John Stewart Bell theoretically and experimentally [[Bell's theorem|disproved the "hidden variables" theory]] of Einstein, Podolsky, and Rosen, most physicists have accepted entanglement as a real phenomenon. However, there is some minority dispute. The [[Bell inequalities]] are the most powerful challenge to Einstein's claims.
https://en.wikipedia.org/wiki?curid=2796131
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The Gyroscopic Inertial Thruster is a proposed reactionless drive based on the mechanical principles of a rotating mechanism. The concept involves various methods of leverage applied against the supports of a large gyroscope. The supposed operating principle of a GIT is a mass traveling around a circular trajectory at a variable speed. The high-speed part of the trajectory allegedly generates greater centrifugal force than the low, so that there is a greater thrust in one direction than the other. Scottish inventor Sandy Kidd, a former RAF radar technician, investigated the possibility (without success) in the 1980s. He posited that a gyroscope set at various angles could provide a lifting force, defying gravity. In the 1990s, several people sent suggestions to the Space Exploration Outreach Program (SEOP) at NASA recommending that NASA study a gyroscopic inertial drive, especially the developments attributed to the American inventor Robert Cook and the Canadian inventor Roy Thornson. In the 1990s and 2000s, enthusiasts attempted the building and testing of GIT machines.
https://en.wikipedia.org/wiki?curid=4756732
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Botvinnik used almost exclusively pawn openings with the white pieces. In his eight World Championship matches, he never started a game with an e4-opening, and his usual choices as White were the English Opening or Queen's Gambit. When playing the black pieces, he preferred the French Defense or Sicilian Defense in response to 1.e4, and the Slav Defense or Nimzo-Indian Defence in response to 1.d4. While Botvinnik did not use a wide range of openings, he made major contributions to those he did use, for example: the Botvinnik Variation of the Semi-Slav Defense in the Queen's Gambit Declined, the Kasparov/Botvinnik system in the Exchange Variation of the Queen's Gambit Declined, the Caro–Kann Defence (both the Panov–Botvinnik Attack for White and various approaches for Black), the Winawer Variation of the French Defense, the Botvinnik System in the English Opening. In his openings research Botvinnik did not aim to produce tactical tricks that would only be effective once, but rather systems in which he aimed to understand typical positions and their possibilities better than his rivals. His advice to his pupils included "My theory of the openings fitted into one notebook" and "You don’t have to know that which everyone knows, but it is important to know that which not everyone knows." In fact he used different notebooks in different periods, and copied a few analyses from one notebook to the next. The "Soviet School of Chess" that dominated competition from 1945 to about 2000 followed Botvinnik's approach to preparation and to openings research; and, although Soviet players had their own preferred styles of play, they adopted his combative approach and willingness to ignore "classical" principles if doing so offered credible prospects of a lasting advantage.
https://en.wikipedia.org/wiki?curid=242416
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Hox genes contain a DNA sequence known as the homeobox that are involved in the regulation of patterns of anatomical development. They contain a specific DNA sequence with the aim of providing instructions for making a string of 60 protein building blocks - amino acids- which are referred to as the homeodomain. Most homeodomain-containing proteins function as transcription factors and fundamentally bind and regulate the activity of different genes. The homeodomain is the segment of the protein that binds to precise regulatory regions of the target genes. Genes within the homeobox family are implicated in a wide variety of significant activities during growth. These activities include directing the development of limbs and organs along the anterior-posterior axis and regulating the process by which cells mature to carry out specific functions, a process known as cellular differentiation. Certain homeobox genes can act tumor suppressors, which means they help prevent cells from growing and dividing too rapidly or in an uncontrolled way.
https://en.wikipedia.org/wiki?curid=46335535
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Monoamine oxidase inhibitors (MAOIs) are a class of drugs that inhibit the enzyme monoamine oxidase. This enzyme is responsible for breaking down many compounds; basically, anything with a primary amine moiety is likely to be oxidized by monoamine oxidase. An important substrate of the enzyme MAO is tyramine. MAOIs inhibit the enzyme either reversibly, in which MAO is inhibited only until the drug is cleared from the system, or irreversibly, in which the substrate binds permanently to the enzyme, rendering it inactive and effectively destroying it. Irreversible MAOIs are potentially more dangerous, because the body takes about two weeks to regenerate MAO enzymes to functional levels. Two subtypes of MAO exist: MAO-A and MAO-B; this is relevant to adrenergic storms, as there are significant differences between the two types, such as their differential expression throughout the body, and range of substrates. While both MAO-A and MAO-B metabolize tyramine, only MAO-A is present in the gastrointestinal tract and singularly metabolizes the majority of consumed tyramine. (The small portion normally passing into circulation is mostly degraded in the liver where both MAO types act.) Consequently, MAOIs that irreversibly inhibit MAO-A will permit high levels of circulating tyramine able to cause tyramine-induced hypertensive crisis. Aged cheese, beer, red wine, some mushrooms, and fermented products such as pickles are foods containing high levels of tyramine that passed into circulation can cause such a hypertensive crisis.
https://en.wikipedia.org/wiki?curid=18462506
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