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By the endosymbiosis theory, which gained acceptance around the 1970s, the mitochondrion, as a major energy factory of the cell, was previously a free-living prokaryote that invaded a eukaryotic cell. Under this theory, symbiotic organelles gradually transferred their genes to the eukaryotic genome, implying that mtDNA was gradually integrated into the nuclear genome. Despite the metabolic alterations and functional adaptations in the host eukaryotes, circular mitochondrial DNA is contained within the organelles. Containing 37 genes, mitochondrial DNA has an essential role in the production of necessary compounds, such as required enzymes for the proper function of mitochondria. Specifically, it has been suggested that certain genes (such as the genes for cytochrome oxidase subunits I and II) within the organelle are necessary to regulate redox balance throughout membrane-associated electron transport chains. These parts of the mitochondrial genome have been reported to be the most frequently employed. Mitochondria is not the only location within which the cell mtDNA, mitochondrial DNA, can be found; sometimes transfer of mitochondrial DNA from organelles to the nucleus can occur; the evidence of such translocation has been seen through the comparison of mitochondrial DNA sequence with the genome sequence of the counterparts. The integration and recombination of cytoplasmic mtDNA into the nuclear DNA is called Nuclear Mitochondrial DNA, which is abbreviated as NUMT.
https://en.wikipedia.org/wiki?curid=8564084
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81,993
In 2009, Intel officials said the company was "working on bundling the optical fiber with copper wire so Light Peak can be used to power devices plugged into the PC." In 2010, Intel said the original intent was "to have one single connector technology" that would let "electrical USB 3.0 ... and piggyback on USB 3.0 or 4.0 DC power." Light Peak aimed to make great strides in consumer-ready optical technology, by then having achieved "[connectors rated] for 7,000 insertions, which matches or exceeds other PC connections ... cables [that were tied] in multiple knots to make sure it didn't break and the loss is acceptable," and, "You can almost get two people pulling on it at once and it won't break the fibre." They predicted that "Light Peak cables will be no more expensive than HDMI."
https://en.wikipedia.org/wiki?curid=24484686
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In 1906, Chagas returned to Rio de Janeiro and joined the Oswaldo Cruz Institute, where he remained working for the rest of his life. In 1909, he was sent by the institute to the small city of Lassance, near the São Francisco River, to combat a malaria outbreak among the workers of a new railroad to the city of Belém in the Amazon. He stayed there for the next two years, and soon was able to observe the peculiar infestation of the rural houses with a large hematophagous insect of the genus "Triatoma", a kind of "assassin bug" or "kissing" bug ("barbeiro" or "barber" in Portuguese, so-called because it sucked the blood at night by biting the faces of its victims). He discovered that the intestines of these insects harbored flagellate protozoans, a new species of the genus "Trypanosoma", and was able to prove experimentally that it could be transmitted to marmoset monkeys that were bitten by the infected bug. Chagas named this new parasite "Trypanosoma cruzi" in honor of Oswaldo Cruz and later that year as "Schizotrypanum cruzi" and then once again as "Trypanosoma cruzi".
https://en.wikipedia.org/wiki?curid=1046233
1,174,156
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Small-scale (64 or 128 bits) SIMD became popular on general-purpose CPUs in the early 1990s and continued through 1997 and later with Motion Video Instructions (MVI) for Alpha. SIMD instructions can be found, to one degree or another, on most CPUs, including IBM's AltiVec and SPE for PowerPC, HP's PA-RISC Multimedia Acceleration eXtensions (MAX), Intel's MMX and iwMMXt, SSE, SSE2, SSE3 SSSE3 and SSE4.x, AMD's 3DNow!, ARC's ARC Video subsystem, SPARC's VIS and VIS2, Sun's MAJC, ARM's Neon technology, MIPS' MDMX (MaDMaX) and MIPS-3D. The IBM, Sony, Toshiba co-developed Cell Processor's SPU's instruction set is heavily SIMD based. Philips, now NXP, developed several SIMD processors named Xetal. The Xetal has 320 16-bit processor elements especially designed for vision tasks.
https://en.wikipedia.org/wiki?curid=55359
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Project SALVO began in 1951 and was based on the assumption that firing multiple projectiles would increase the probability of hitting the target. During World War II, an infantryman with a rifle at an average engagement distance of under combat stress expended 10,000 rounds for one hit. Consideration to lighter ammunition types and rifle/grenade launcher combinations was given. Flechettes were found to be inaccurate and expelled fiberglass fragments with each round fired. SALVO mainly studied weapons and ammunition as opposed to developing them. It determined that higher velocity projectiles, smaller than .308 (7.62 mm), had equal or greater lethality with less weight. It also found that fully automatic fire did not increase hit probability.
https://en.wikipedia.org/wiki?curid=1052368
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CyArk has generated a fairly large amount of publicity since its inception. Initially, this was in part due to the relevance of Kacyra's life story to the ongoing Iraq War, during which much of the country's cultural patrimony was destroyed amidst a spasm of looting and heavy military damage to important historical sites such as Babylon and Samarra. As the public face of the CyArk organization, Ben Kacyra became a popular speaker at conferences such as Google's Zeitgeist (2008), and TEDGlobal (2011), describing his life story and the potential of digital preservation to save the "collective treasure" of global heritage. In recent years, however, he has taken on more of an advisory role, while the independent non-profit organization CyArk has gathered considerable momentum.
https://en.wikipedia.org/wiki?curid=14927404
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In common with most countries, the development of technology allowed for different networking, and the maintenance of a formal hierarchy disappeared into a distributed network. By the mid-1990s, a revised structure had appeared, reflected by the replacement of the old departmental area codes by the assignment of regional codes and a major renumbering scheme for strategic planning, privatization, and deregulation under the auspices of ART, the (Regulatory Authority for Telecommunications - known since 2005 as ARCEP, as responsibility for postal services was added and later expanded in 2019 to print media distribution). After 1996, the country prepared for complete deregulation of the telephone network.
https://en.wikipedia.org/wiki?curid=26656098
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The connectivity of the neural circuit for touch sensitivity of the simple C. elegans nematode (roundworm) was mapped in 1985 and partly simulated in 1993. Since 2004, many software simulations of the complete neural and muscular system have been developed, including simulation of the worm's physical environment. Some of these models including source code have been made available for download. However, there is still a lack of understanding of how the neurons and the connections between them generate the surprisingly complex range of behaviors that are observed in the relatively simple organism. This contrast between the apparent simplicity of how the mapped neurons interact with their neighbours, and exceeding complexity of the overall brain function, is an example of an emergent property. This kind of emergent property is paralleled within artificial neural networks, the neurons of which are exceedingly simple compared to their often complex, abstract outputs.
https://en.wikipedia.org/wiki?curid=21855574
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Research Synthesis Methods is a quarterly peer-reviewed multidisciplinary scientific journal covering all aspects of research methods as they have been applied to research synthesis. It was established in 2010 and is published by John Wiley & Sons on behalf of the Society for Research Synthesis Methodology, of which it is the official journal. The founding editors-in-chief were Christopher Schmid (Brown University) and Mark Lipsey (Vanderbilt University), and the current ones are Gerta Rücker (Albert Ludwigs University of Freiburg) (Germany) and Terri D. Pigott (Georgia State University) (US) who followed Ian Shrier (Lady Davis Institute for Medical Research). According to the "Journal Citation Reports", the journal has a 2021 impact factor of 9.308, ranking it 3rd out of 57 journals in the category "Mathematical & Computational Biology" and 11th out of 73 journals in the category "Multidisciplinary Sciences".
https://en.wikipedia.org/wiki?curid=58307936
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These hallmarks constitute an organizing principle for rationalizing the complexities of neoplastic disease. They include sustaining proliferative signaling, evading growth suppressors, resisting cell death, enabling replicative immortality, inducing angiogenesis, and activating invasion and metastasis. Underlying these hallmarks are genome instability, which generates the genetic diversity that expedites their acquisition, and inflammation, which fosters multiple hallmark functions. In addition to cancer cells, tumors exhibit another dimension of complexity: they incorporate a community of recruited, ostensibly normal cells that contribute to the acquisition of hallmark traits by creating the “tumor microenvironment.” Recognition of the widespread applicability of these concepts will increasingly affect the development of new means to treat human cancer.
https://en.wikipedia.org/wiki?curid=31321569
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Significant HIF1A expression has been noted in most solid tumors studied, which include cancers of the gastric, colon, breast, pancreas, kidneys, prostate, ovary, brain, and bladder. Clinically, elevated HIF1A levels in a number of cancers, including cervical cancer, non-small-cell lung carcinoma, breast cancer (LV-positive and negative), oligodendroglioma, oropharyngeal cancer, ovarian cancer, endometrial cancer, esophageal cancer, head and neck cancer, and stomach cancer, have been associated with aggressive tumor progression, and thus has been implicated as a predictive and prognostic marker for resistance to radiation treatment, chemotherapy, and increased mortality. HIF1A expression may also regulate breast tumor progression. Elevated HIF1A levels may be detected in early cancer development, and have been found in early ductal carcinoma "in situ", a pre-invasive stage in breast cancer development, and is also associated with increased microvasculature density in tumor lesions. Moreover, despite histologically-determined low-grade, lymph-node negative breast tumor in a subset of patients examined, detection of significant HIF1A expression was able to independently predict poor response to therapy. Similar findings have been reported in brain cancer and ovarian cancer studies as well, and suggest at regulatory role of HIF1A in initiating angiogenesis through interactions with pro-angiogenic factors such as VEGF.
https://en.wikipedia.org/wiki?curid=12744173
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Before the last round only Carlsen and Kramnik could win the tournament; they were equal on 8½ points, 1½ points ahead of Svidler and Aronian. Carlsen had the better tie break (on the first tie break the score from their individual games was 1–1, but Carlsen was ahead on the second tie break due to having more wins), and this would not change if they both scored the same in the final round. Therefore, Kramnik, who had black against Ivanchuk, needed to outperform Carlsen, who had white against Svidler. Carlsen played to win, since that would guarantee him the tournament victory regardless of Kramnik's result; similarly, Kramnik knew that the odds of Carlsen losing with white were minute, and he went all-in against Ivanchuk with the Pirc defense. This backfired and Ivanchuk obtained an early advantage, while Carlsen got a level position against Svidler. Carlsen later got into serious time trouble and did not defend adequately against Svidler's attack, which gave Svidler a winning endgame. Meanwhile, Ivanchuk had outplayed Kramnik, who resigned a few minutes after Carlsen lost. Thus the tournament was won by Carlsen on the second tiebreak. Carlsen's win earned him the right to challenge the reigning world champion, Vishy Anand for the world title.
https://en.wikipedia.org/wiki?curid=32768829
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Buildings commonly use a factor of safety of 2.0 for each structural member. The value for buildings is relatively low because the loads are well understood and most structures are redundant. Pressure vessels use 3.5 to 4.0, automobiles use 3.0, and aircraft and spacecraft use 1.2 to 3.0 depending on the application and materials. Ductile, metallic materials tend to use the lower value while brittle materials use the higher values. The field of aerospace engineering uses generally lower design factors because the costs associated with structural weight are high (i.e. an aircraft with an overall safety factor of 5 would probably be too heavy to get off the ground). This low design factor is why aerospace parts and materials are subject to very stringent quality control and strict preventative maintenance schedules to help ensure reliability. A usually applied Safety Factor is 1.5, but for pressurized fuselage it is 2.0, and for main landing gear structures it is often 1.25.
https://en.wikipedia.org/wiki?curid=262553
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To achieve sustainable development, three aspects or dimensions need to come together: The economic, socio-political, and environmental dimensions are all critically important and interdependent. Progress will require multidisciplinary and trans-disciplinary research across all three sectors. This proves difficult when major governments fail to support it. Sustainable development can enhance sectoral integration and social inclusion (robust evidence, high agreement). Inclusion merits attention because equity within and across countries is critical to transitions that are not simply rapid but also sustainable and just. Resource shortages, social divisions, inequitable distributions of wealth, poor infrastructure and limited access to advanced technologies can constrain the options and capacities for developing countries to achieve sustainable and just transitions (medium evidence, high agreement) {17.1.1.2}.
https://en.wikipedia.org/wiki?curid=38647790
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Algae was the first candidate for human-plant life support systems. Initial research in the 1950s and 1960s used "Chlorella, Anacystis, Synechocystis, Scenedesmus, Synechococcus," and "Spirulina" species to study how photosynthetic organisms could be used for and cycling in closed systems. Later research through Russia's BIOS program and the US's CELSS program investigated the use of higher plants to fulfill the roles of atmospheric regulators, waste recyclers, and food for sustained missions. The crops most commonly studied include starch crops such as wheat, potato, and rice; protein-rich crops such as soy, peanut, and common bean; and a host of other nutrition-enhancing crops like lettuce, strawberry, and kale. Tests for optimal growth conditions in closed systems have required research both into environmental parameters necessary for particular crops (such as differing light periods for short-day versus long-day crops) and cultivars that are a best-fit for life support system growth.
https://en.wikipedia.org/wiki?curid=10494220
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Sloughs are channels of free-flowing water in between the sawgrass marshes. Sloughs are deeper than sawgrass marshes, about , and may stay flooded for at least 11 months out of the year if not multiple years in a row. The peat beds that support sawgrass are slightly elevated and may begin abruptly creating ridges of grass. The borders between these systems are called "ridge-and-slough" landscapes. Aquatic animals such as turtles, young alligators, snakes, and fish live in sloughs and they usually feed on aquatic invertebrates, such as the Florida apple snail. Plants grow here, usually submerged or floating like bladderwort ("Utricularia"), waterlily ("Nymphaeaceae"), or spatterdock ("Nuphar lutea"). Major sloughs in the Everglades system include the Shark River Slough draining to Florida Bay, Lostmans Slough bordering The Big Cypress, and Taylor Slough in the eastern Everglades.
https://en.wikipedia.org/wiki?curid=17273354
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Ben Ratliff wrote in "The New York Times" in 2006 that Spalding's voice is "light and high, up in Blossom Dearie's pitch range, and [that] she can sing quietly, almost in a daydream" and that Spalding "invents her own feminine space, a different sound from top to bottom." Spalding was the 2005 recipient of the Boston Jazz Society scholarship for outstanding musicianship. Almost immediately after graduation from college later the same year, Spalding was hired by Berklee College of Music to teach bass performance and private lessons, becoming one of the youngest instructors in the institution's history, at the age of 20. As a teacher, Spalding tries to help her students focus their practice through a practice journal, which can help them recognize their strengths and what they need to pursue.
https://en.wikipedia.org/wiki?curid=17929761
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Disopyramide's Class 1a activity is similar to that of quinidine in that it targets sodium channels to inhibit conduction. Disopyramide depresses the increase in sodium permeability of the cardiac myocyte during Phase 0 of the cardiac action potential, in turn decreasing the inward sodium current. This results in an increased threshold for excitation and a decreased upstroke velocity. Disopyramide prolongs the PR interval by lengthening both the QRS and P wave duration. This effect is particularly well suited in the treatment of ventricular tachycardia as it slows the action potential propagation through the atria to the ventricles. Disopyramide does not act as a blocking agent for beta or alpha adrenergic receptors, but does have a significant negative inotropic effect on the ventricular myocardium. As a result, the use of disopyramide may reduce contractile force up to 42% at low doses and up to 100% in higher doses compared to quinidine.
https://en.wikipedia.org/wiki?curid=4325410
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Every day, people are continually exposed to a wide variety of potentially arousing stimuli. Inappropriate, extreme or unchecked emotional reactions to such stimuli could impede functional fit within society; therefore, people must engage in some form of emotion regulation almost all of the time. Generally speaking, emotion dysregulation has been defined as difficulties in controlling the influence of emotional arousal on the organization and quality of thoughts, actions, and interactions. Individuals who are emotionally dysregulated exhibit patterns of responding in which there is a mismatch between their goals, responses, and/or modes of expression, and the demands of the social environment. For example, there is a significant association between emotion dysregulation and symptoms of depression, anxiety, eating pathology, and substance abuse. Higher levels of emotion regulation are likely to be related to both high levels of social competence and the expression of socially appropriate emotions.
https://en.wikipedia.org/wiki?curid=17476149
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The Cass Corridor is one of the university's other notable surroundings, with a venerable history and culture that has left an imprint on many WSU alumni. Many notable events have taken place on or near the campus as a result of its unique location. Artists that got their start here include Chuck and Joni Mitchell, Alice Cooper, The White Stripes, The Detroit Cobras, MC5, The Stooges, Savage Grace, Ted Nugent, and Grand Funk Railroad. The Red Hot Chili Peppers recorded their "Freaky Styley" album in this area, which was also home to "Creem" magazine — the first rock journal, and the first to use the terms "punk rock" and "heavy metal" and give recognition to the likes of David Bowie, Iggy Pop, The Smiths and others. The now-razed Tartar Field was home to WABX's free Sunday concerts in the late 1960s and early 1970s featuring many of these musicians.
https://en.wikipedia.org/wiki?curid=302260
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In January 1906 the Royal Navy conducted experiments with transfers between the oiler "Petroleum" and the battleship . The oiler was towed astern of "Victorious" using a steel rope. Twenty-seven lengths of long hose were then connected between the ships. Experiments were undertaken with both bronze and steel hose attached to a three-inch wire jackstay, with another wire used as a traveling jackstay for the hose. As the "Victorious" was coal-fired, water instead of oil was pumped between the two vessels. The trial found that a transfer rate of 115 tons per hour could be achieved with the vessels traveling at speeds up to 12 knots in fine weather. The trial found that it took five hours to pass the hoses from the Petroleum to the "Victorious", including a one-hour meal break, with it taking three hours to return the hoses to the oiler. The trial found that the oiler's replenishment mechanism had a tendency to break due to the high pumping pressures required.
https://en.wikipedia.org/wiki?curid=2589484
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About four days in advance of a typical tropical cyclone, an ocean of in height will roll in about every 10 seconds, moving towards the coast from the direction of the tropical cyclone's location. The ocean swell will slowly increase in height and frequency the closer a tropical cyclone gets to land. Two days in advance of the center's passage, winds go calm as the tropical cyclone interrupts the environmental wind flow. Within 36 hours of the center passage, the pressure begins to fall and a veil of white cirrus clouds approaches from the cyclone's direction. Within 24 hours of the closest approach to the center, low clouds begin to move in, also known as the bar of a tropical cyclone, as the barometric pressure begins to fall more rapidly and the winds begin to increase. Within 18 hours of the center's approach, squally weather is common, with sudden increases in wind accompanied by rain showers or thunderstorms. Winds increase within 12 hours of the center's approach, occasionally reaching hurricane force. The ocean's surface becomes whipped with foam. Small items begin flying in the wind. Within 6 hours of the center's arrival, rain becomes continuous and the storm surge begins to come inland. Within an hour of the center, the rain becomes very heavy and the highest winds within the tropical cyclone are experienced. When the center arrives with a strong tropical cyclone, weather conditions improve and the sun becomes visible as the eye moves overhead. At this point, the pressure ceases to drop as the lowest pressure within the storm's center is reached. This is also when the peak depth of the storm surge occurs. Once the system departs, winds reverse and, along with the rain, suddenly increase. The storm surge retreats as the pressure suddenly rises in the wake of its center. One day after the center's passage, the low overcast is replaced with a higher overcast, and the rain becomes intermittent. By 36 hours after the center's passage, the high overcast breaks and the pressure begins to level off.
https://en.wikipedia.org/wiki?curid=11052024
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Michael Kearns is an American computer scientist, professor and National Center Chair at the University of Pennsylvania, the founding director of Penn's Singh Program in Networked & Social Systems Engineering (NETS), the founding director of Warren Center for Network and Data Sciences, and also holds secondary appointments in Penn's Wharton School and department of Economics. He is a leading researcher in computational learning theory and algorithmic game theory, and interested in machine learning, artificial intelligence, computational finance, algorithmic trading, computational social science and social networks. He previously led the Advisory and Research function in Morgan Stanley's Artificial Intelligence Center of Excellence team, and is currently an Amazon Scholar within Amazon Web Services.
https://en.wikipedia.org/wiki?curid=45002035
1,705,627
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Polymath naturalist Increase Allen Lapham is regarded as Wisconsin's first geologist. During the late 1830s Lapham discovered a wide variety of fossils in great abundance in some rocky hills near Milwaukee. He wondered about the stratigraphic relationship between the rocks preserving his fossils and those from New York described in James Hall's recent research. Lapham sent a sizable sampling of the local fossils to Hall in 1846. Hall began researching the area and in 1862 recognized the local reefs for what they were. The Silurian-aged reefs of the Milwaukee area were the first Paleozoic reefs in the world to be described for the scientific literature. They were also the first fossil reefs in North America to be properly recognized as such. Hall set out to formally describe the fossils of the reef, and found them to be among the most diverse of the period on the entire continent. Lapham died in 1875 and most of his fossils and mineral specimens were sold to the University of Wisconsin. Sadly, most of his specimens were destroyed nine years later during a fire that consumed the university's science building. During the second half of the 19th century the region was prospected by "gentleman naturalists" who collected fossils on behalf of Hall and other well known paleontologists. Examples include T. A. Greene and E. E. Teller who collected near Milwaukee, P. R. Hoy, who collected near Racine, and F. H. Day, who collected in the Wauwatosa area. In 1877 research by T. C. Chamberlin uncovered differences in the composition and fossils of the reef-bearing rocks of the Milwaukee area as compared to those that didn't contain reefs. Donald G. Mikulic praised Chamberlin's research on the Milwaukee reefs as "a classic work of paleoecology and sedimentology". In the early 20th century the reefs commanded the research attention of figures like W. C. Alden, A. W. Grabau, and R. R. Schrock. Gradually scientific interest in the Silurian reefs of Milwaukee waned along with the decline in local quarrying.
https://en.wikipedia.org/wiki?curid=37799080
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Hypoxia plays an important role in the regulation of cancer stem cell niches and EMT through the promotion of HIFs. These HIFs help maintain cancer stem cell niches by regulating important stemness genes such as Oct4, Nanog, SOX2, Klf4, and cMyc. HIFs also regulate important tumor suppressor genes such as p53 and genes that promote metastasis. Although HIFs increase the survival of cells by decreasing the effects of oxidative stress, they have also been shown to decrease factors such as RAD51 and H2AX that maintain genomic stability. In the hypoxic condition there is an increase of intracellular Reactive Oxygen Species (ROS) which also promote CSCs survival via stress response. ROS stabilizes HIF-1α which promotes the Met proto-oncogene, which drives metastasis or motogenic escape in melanoma cells. All of these factors contribute to a cancer stem cell phenotype which is why it is often referred to as a hypoxic stem cell niche. Hypoxic environments are often found in tumors where the cells are dividing faster that angiogenesis can occur. It is important to study hypoxia as an aspect of cancer because hypoxic environments have been shown to be resistant to radiation therapy. Radiation has been shown to increase the amounts of HIF-1. EMT induction by hypoxia though interactions between HIF-1α and ROS is crucial for metastasis in cancers such as melanoma. It has been found that many genes associated with melanoma are regulated by hypoxia such as MXI1, FN1, and NME1.
https://en.wikipedia.org/wiki?curid=10213576
1,308,891
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After spending a year in as a NIH Postdoctoral Fellow at Princeton University with Paul Schleyer, Stang joined the chemistry faculty at the University of Utah in 1969. He became dean of the College of Science in 1997, during which he established the John E. and Marva M. Warnock Endowed Chair in Mathematics, and oversaw construction and dedication of the new David M. Grant NMR Center in 2006. He stepped down as dean in 2007. He is a member of the National Academy of Sciences. He was editor-in-chief of the Journal of Organic Chemistry from 2000 to 2001. In 2013 he was awarded the American Chemical Society Priestley Medal. He served as editor in chief of the "Journal of the American Chemical Society" from 2002 to 2020, succeeded in 2021 by Erick M. Carreira.
https://en.wikipedia.org/wiki?curid=22323508
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The industry electricity tariffs are lower than other users. In Finland the electricity pricing of households promotes electricity use with high fixed prices and increasing price reductions for higher consumption. The annual transmission costs for at least a moderate energy user (less than 2 MWh a year, a typical German consumption) can be higher than the actual electricity cost. With this consumption level the fixed costs may be around 0.25-0.3 % of total electricity costs. According to the newspaper discussions in some contracts the fixed cost can be substantial also when there is no electricity use and the power lines are old. The fixed costs may be a significant cost factor in the evaluation of own renewable electricity production. This applies also alternatives to fossil heating if connection to old system is in place. Most often only the remote summer cottages have no connection in the transmission power lines with annual fixed costs. At least until the end of 2010 there was no compensation of extra electricity fed in the power lines. This is also valid in 2011 for small-scale domestic or agricultural farm production. The electricity feed in policy of government have mainly supported the large energy companies economical interests. The shift in the charge of electricity consumption instead of the present trend to increase of the fixed prices would promote economically the energy savings and renewable energy investments. This could be politically controlled since the business interest is to promote high energy consumption.
https://en.wikipedia.org/wiki?curid=32854563
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The fruit bodies produced by the fungus are tall and wide. They are fleshy cauliflower-like masses with a stout central stem that splits into a few lower primary branches before branching densely above. The stem is short and thick—between in diameter—and tapers downward. Initially white, in age both the stem and branches turn pale yellow to buff to tan. Old fruit bodies can fade to become almost white, or may be ochre due to fallen spores. The branching pattern is irregular, with the primary branches few and thick—typically —and the final branches slender (2–3 mm), and usually terminated with five to seven branchlets. The branchlet tips are pink to purplish-red. The flesh is solid and white, and has an odor described variously as indistinct or pleasant. A drop of Melzer's reagent applied to the stem tissue reveals a weak amyloid staining reaction that often requires more than 30 minutes to develop. This reaction can be used to help distinguish "R. botrytis" from other similar fungi.
https://en.wikipedia.org/wiki?curid=24661039
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Microneedles or Microneedle patches or Microarray patches are micron-scaled medical devices used to administer vaccines, drugs, and other therapeutic agents. While microneedles were initially explored for transdermal drug delivery applications, their use has been extended for the intraocular, vaginal, transungual, cardiac, vascular, gastrointestinal, and intracochlear delivery of drugs. Microneedles are constructed through various methods, usually involving photolithographic processes or micromolding. These methods involve etching microscopic structure into resin or silicon in order to cast microneedles. Microneedles are made from a variety of material ranging from silicon, titanium, stainless steel, and polymers. Some microneedles are made of a drug to be delivered to the body but are shaped into a needle so they will penetrate the skin. The microneedles range in size, shape, and function but are all used as an alternative to other delivery methods like the conventional hypodermic needle or other injection apparatus.
https://en.wikipedia.org/wiki?curid=58971829
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Promoter Tavo Hellmund admitted that his company had been in breach of its contract with Formula One Management since May 2011. The situation further escalated when state comptroller Susan Combs described the planned Grand Prix of America as a threat to the race in Texas, and said that the first $25 million payment from the state sports fund would only be made available after the first Grand Prix at the circuit, despite having previously promised to make the funds available in time for the inaugural event. Bernie Ecclestone later issued an ultimatum to the owners and organizers: find a solution before the December 7 meeting of the FIA World Motor Sport Council or else risk being removed from the 2012 calendar. Ecclestone emphasized that if the Circuit of the Americas were removed from the calendar, it would not be added again at a later date.
https://en.wikipedia.org/wiki?curid=28663179
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John Townsend was born at Galway in County Galway, Ireland, son of Edward Townsend, a Professor of Civil Engineering at Queen's College Galway and Judith Townsend. In 1885, he entered Trinity College Dublin, was elected a Scholar of the College in 1888, and came top of the class in mathematics with a BA in 1890. He became a Clerk Maxwell Scholar and entered Trinity College, Cambridge, where he became a research student at the same time as Ernest Rutherford. At the Cavendish laboratory, he studied under J. J. Thomson. He developed the ""Townsend's collision theory"". Townsend supplied important work to the electrical conductivity of gases ("Townsend discharge" circa 1897). This work determined the elementary electrical charge with the droplet method. This method was improved later by Robert Andrews Millikan.
https://en.wikipedia.org/wiki?curid=3838963
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In response to progressively complicated surroundings, where competition between animals with brains started to arise for survival, animals had to learn to manage their energy. As creatures acquired a variety of senses for perception, animals progressed to develop allostasis, which played the role of an early brain by forcing the body to gather past experiences to improve prediction. Since prediction beat reaction, organisms who planned their manoeuvres were more likely to survive than those who did not. This came with equally managing energy adequately, which nature favoured. Animals that had not developed allostasis would be at a disadvantage for their purpose of exploration, foraging and reproduction, as death was a higher risk factor.
https://en.wikipedia.org/wiki?curid=1555376
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The researchers of the HVTN deemed the creation of the CAB necessary for HIV vaccine research when it has not been necessary for other clinical research because the HIV epidemic is especially urgent, new research techniques are available now that did not exist before recent major advances in genetic engineering, the public is generally overly-willing to volunteer to receive experimental vaccines for this cause, and yet the educational infrastructure already in place to disseminate information about the inherent risk in participating in vaccine research is lacking in society. For too many reasons, there is no precedent for research of this sort on this scale, and without integrating educational programs about this research into existing community institutions, the HVTN simply could not educate people to the required level to make such a fast-moving, expensive, inherently non-commercial research project possible.
https://en.wikipedia.org/wiki?curid=9915335
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The species grows as a small erect shrub, tall and across. Leaves are long and wide, with a circular shape (heart-shaped near base). Leaves are rough on both sides, toothed, and have 3 to 5 lobes. Flower stock are covered in velvety hair, and the flowers themselves are across. The stocks are short and colored white to pink with a dark purple center. Flowers last a few days. The plant has small hairs which may cause irritation. The plant's seed heads are hairy and sticky, ovalar in shape and long and wide, with five ribs and a short beak. Seeds that are still in their growth period are medium to dark green, and when they are mature they turn dark brown, and split into five parts to release 10 to 20 brown to black spherical seeds, covered in tiny hairs.
https://en.wikipedia.org/wiki?curid=28187913
1,594,235
1,738,193
Furthermore, when an increased number of employees adopt managerial roles within a firm or a worker cooperative, a flatter organisational structure arises. Hence, staff are allowed to participate "at the highest level" through member-driven participation, for example through open-led meetings and consensus decision-making. Often, this is facilitated through training in public speaking and small-group debate opportunities, which develop staff members' communication abilities and equip them with skills vital to labour participation. By fulfilling these managerial functions, workers develop transferrable soft skills in communication and responsibility that increase chances of future employment and career development.
https://en.wikipedia.org/wiki?curid=24613993
1,737,216
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Finally, Aristotle turns to the idea that reciprocity ("an eye for an eye") is justice, an idea he associates with the Pythagoreans. The problem with this approach to justice, although it is normal in politics and law-making, is that it ignores the difference between different reasons for doing a crime. For example, it could have been done out of passion or ignorance, and this makes a critical difference when it comes to determining what is the just reaction. This in turn returns Aristotle to mention the fact that laws are not normally exactly the same as what is just: "Political Justice is of two kinds, one natural, the other conventional." In a famous statement, Aristotle makes a point that, like many points in Book 5, is thought to refer us to consideration of Plato's "Republic". "Some people think that all rules of justice are merely conventional, because whereas a law of nature is immutable and has the same validity everywhere, as fire burns both here and in Persia, rules of justice are seen to vary." Aristotle insists that justice is both fixed in nature in a sense, but also variable in a specific way: "the rules of justice ordained not by nature but by man are not the same in all places, since forms of government are not the same, though in all places there is only one form of government that is natural, namely, the best form." He believed people can generally see which types of rules are conventional, and which by nature—and he felt that most important when trying to judge whether someone was just or unjust was determining whether someone did something voluntarily or not. Some people commit crimes by accident or due to vices other than greed or injustice.
https://en.wikipedia.org/wiki?curid=591767
396,046
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In 1920–1921, a hockey team again skated representing the University of Minnesota. W. Beaupre Eldredge of St. Paul, a student and club player at the time, was very instrumental in organizing the team, promoting the team to the University Board of Regents to become an official varsity sport. For 1921–1922 season the University Athletic Board of Control decided to finally give ice hockey varsity status on January 9, 1922, answering a petition organized by Merle "Frenchy" DeForest, the president of a new booster organization for the sport, which itself grew out of enthusiasm for hockey among the interfraternal league. During this season, the team finished with a 7–3 record, led by head coach I.D. MacDonald and captain Chester “Chet” Bros. Other members of the 1921–22 team include center Paul Swanson and wingman Frank R. Pond, who were named captains for the following seasons, Swanson in 1922–23 and Pond in 1923–24. DeForest, Swanson and Pond were all members of Phi Sigma Kappa fraternity, while Bros was a member of Delta Tau Delta.
https://en.wikipedia.org/wiki?curid=7865612
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For the shear strengthening of a beam, the FRP is applied on the web (sides) of a member with fibres oriented transverse to the beam's longitudinal axis. Resisting of shear forces is achieved in a similar manner as internal steel stirrups, by bridging shear cracks that form under applied loading. FRP can be applied in several configurations, depending on the exposed faces of the member and the degree of strengthening desired, this includes: side bonding, U-wraps (U-jackets), and closed wraps (complete wraps). Side bonding involves applying FRP to the sides of the beam only. It provides the least amount of shear strengthening due to failures caused by de-bonding from the concrete surface at the FRP free edges. For U-wraps, the FRP is applied continuously in a 'U' shape around the sides and bottom (tension) face of the beam. If all faces of a beam are accessible, the use of closed wraps is desirable as they provide the most strength enhancement. Closed wrapping involves applying FRP around the entire perimeter of the member, such that there are no free ends and the typical failure mode is rupture of the fibres. For all wrap configurations, the FRP can be applied along the length of the member as a continuous sheet or as discrete strips, having a predefined minimum width and spacing.
https://en.wikipedia.org/wiki?curid=944339
155,231
950,690
For 65 years, between 1954 and the 2019 redefinition of the SI base units, a temperature interval of one kelvin was defined as the difference between the triple point of water and absolute zero. The 1954 resolution by the International Bureau of Weights and Measures (known by the French-language acronym BIPM), plus later resolutions and publications, defined the triple point of water as precisely 273.16 K and acknowledged that it was "common practice" to accept that due to previous conventions (namely, that 0 °C had long been defined as the melting point of water and that the triple point of water had long been experimentally determined to be indistinguishably close to 0.01 °C), the difference between the Celsius scale and Kelvin scale is accepted as 273.15 kelvins; which is to say, 0 °C equals 273.15 kelvins. The net effect of this as well as later resolutions was twofold: 1) they defined absolute zero as precisely 0 K, and 2) they defined that the triple point of special isotopically controlled water called Vienna Standard Mean Ocean Water was precisely 273.16 K and 0.01 °C. One effect of the aforementioned resolutions was that the melting point of water, while "very" close to 273.15 K and 0 °C, was not a defining value and was subject to refinement with more precise measurements.
https://en.wikipedia.org/wiki?curid=41789
950,186
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Palaeoanthropologists Jeffrey H. Schwartz, Ian Tattersall and Zhang Chi responded to Lordkipanidze and colleagues in 2014, disagreeing with the idea that all five skulls were from the same species. Schwartz, Tattersall and Chi also suggested that the use of a quadrinomial name, "H. e. e. georgicus", was invalid in zoological nomenclature. Most importantly, Schwartz, Tattersall and Chi questioned if the morphological comparisons were detailed enough to come to this conclusion and questioned the methods which Lordkipanidze and colleagues had used to determine what is and is not interspecific variation. The researchers did not see the fact that the fossils were from the same site and a relatively short time period as enough to determine that they all came from the same species and that the previous claims of "Gorilla"-type mandibular variation but "H. sapiens"/"Pan"-type cranial variation could not both be correct at the same time. They also questioned if all morphological differences could truly be attributed to age, wear and pathology. Several traits within the skulls and teeth of all the Dmanisi skulls were put forward as "potentially species-distinguishing features" and Schwartz, Tattersall and Chi concluded that at least the D2600 mandible, and thus Skull 5 as a whole, should remain classified as a distinct species, "H. georgicus", writing that "to deny this hominin a distinct identity is effectively to deny the utility of morphology in systematics, a radical proposition to which few would subscribe".
https://en.wikipedia.org/wiki?curid=60072585
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The hereditary nature of these structures was not confirmed until they were studied in "Drosophila melanogaster" in the early 1930s by German biologists Emil Heitz and Hans Bauer. In 1930, Heitz studied different species of "Drosophila" ("D. melanogaster", "D. simulans", "D. hydei", and "D. virilis") and found that all their interphase chromatins in certain cells were swollen and messy. In 1932, he collaborated with Karl Heinrich Bauer with whom he discovered that the tangled chromosomes having distinct bands are unique to the cells of the salivary glands, midgut, Malphigian tubules, and brain of the flies "Bibio hurtulunus" and "Drosophila funebris". The two papers were published in the early 1933. Unaware of these papers, an American geneticist Theophilus Shickel Painter reported in December 1933 the existence of giant chromosome in "D. melanogaster" (followed by a series of papers the following year). Learning of this, Heitz accused Painter of deliberately ignoring their original publication to claim priority of discovery. In 1935, Hermann J. Muller and A.A. Prokofyeva established that the individual band or part of a band corresponds with a gene in "Drosophila". The same year, P.C. Koller hesitantly introduced the name "polytene" to describe the giant chromosome, writing:
https://en.wikipedia.org/wiki?curid=1207987
898,626
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Hull's magnetron was not originally intended to generate VHF (very-high-frequency) electromagnetic waves. However, in 1924, Czech physicist August Žáček (1886–1961) and German physicist Erich Habann (1892–1968) independently discovered that the magnetron could generate waves of 100 megahertz to 1 gigahertz. Žáček, a professor at Prague's Charles University, published first; however, he published in a journal with a small circulation and thus attracted little attention. Habann, a student at the University of Jena, investigated the magnetron for his doctoral dissertation of 1924. Throughout the 1920s, Hull and other researchers around the world worked to develop the magnetron. Most of these early magnetrons were glass vacuum tubes with multiple anodes. However, the two-pole magnetron, also known as a split-anode magnetron, had relatively low efficiency.
https://en.wikipedia.org/wiki?curid=20861
293,317
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The over-expression of epidermal growth factor receptor (EGFR) has been reported in a majority of epithelioid sarcomas. EGFR is a member of the HER receptor family. Upon ligand binding, EGFR phosphorylation triggers the activation of downstream signaling pathways involved in critical cellular functions such as proliferation, survival, and angiogenesis. In-vitro and in-vivo laboratory experiments have demonstrated that the blockade of EGFR in epithelioid sarcoma results in decreased cell proliferation, increased apoptosis, and abrogated invasion and migration capacities. While the simple blockade of EGFR with a single agent has shown limited results in the clinical setting, when used as part of a combination regime (where an EGFR inhibitor is combined with an mTOR inhibitor), a synergism has been observed, and superior tumor growth inhibition has been demonstrated.
https://en.wikipedia.org/wiki?curid=15025638
1,122,730
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A different approach to avoiding lock-in is embodied in the Multioscillator Ring Laser Gyroscope, wherein what is effectively two independent ring lasers (each having two counterpropagating beams) of opposite circular polarization coexist in the same ring resonator. The resonator incorporates polarization rotation (via a nonplanar geometry) which splits the fourfold-degenerate cavity mode (two directions, two polarizations each) into right- and left-circular-polarized modes separated by many hundreds of MHz, each having two counterpropagating beams. Nonreciprocal bias via the Faraday effect, either in a special thin Faraday rotator, or via a longitudinal magnetic field on the gain medium, then further splits each circular polarization by typically a few hundred kHz, thus causing each ring laser to have a static output beat frequency of hundreds of kHz. One frequency increases and one decreases, when inertial rotation is present; the two frequencies are measured and then digitally subtracted to finally yield the net Sagnac-effect frequency splitting and thus determine the rotation rate. The Faraday bias frequency is chosen to be higher than any anticipated rotation-induced frequency difference, so the two counterpropagating waves have no opportunity to lock-in.
https://en.wikipedia.org/wiki?curid=302790
867,286
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ISCB seeks to communicate the significance of computational biology to the larger scientific community, to governmental organizations, and to the general public; the society serves its members locally, nationally, and internationally; it provides guidance for scientific policies, publications, meetings, and distributes information through multiple platforms. ISCB organizes the Intelligent Systems for Molecular Biology (ISMB) conference every year, a growing number of smaller, more regionally or topically focused annual and bi-annual conferences, and has three official journals: "ISCB Community Journal, PLOS Computational Biology" and "Bioinformatics". The society awards three scientific achievement awards annually: the Overton Prize, the ISCB Innovator Award, and the ISCB Senior Scientist Awards. The society elects ISCB Fellows annually, to honor members that have distinguished themselves through outstanding contributions to the fields of computational biology and bioinformatics. The ISCB also awards the ISCB Outstanding Contributions Award to recognize members of the community who have significantly contributed to the success of the organization.
https://en.wikipedia.org/wiki?curid=20855686
1,638,070
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In October 2020, the University of New England received a gift of $30 million from the Harold Alfond Foundation as part of a major investment in eight Maine institutions for the purpose of growing the state’s workforce and economy and supporting quality health care. The grant will support the construction of a new facility for the relocation of the University’s College of Osteopathic Medicine from the Biddeford Campus to the Portland Campus, the establishment of a new Institute for Interprofessional Education and Practice, and the acceleration of high-growth undergraduate and graduate programs on the Biddeford Campus to meet student demand and workforce needs, such as aquaculture, entrepreneurship, criminal justice, sports media communication, and others.
https://en.wikipedia.org/wiki?curid=428933
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Warwick's alumni and staff include winners of the Nobel Prize, Turing Award, Fields Medal, Richard W. Hamming Medal, Emmy Award, Grammy, and the Padma Vibhushan, and are fellows to the British Academy, the Royal Society of Literature, the Royal Academy of Engineering, and the Royal Society. Alumni also include heads of state, government officials, leaders in intergovernmental organisations, and the current chief economist at the Bank of England. Researchers at Warwick have also made significant contributions such as the development of penicillin, music therapy, Washington Consensus, second-wave feminism, computing standards, including ISO and ECMA, complexity theory, contract theory, and the International Political Economy as a field of study.
https://en.wikipedia.org/wiki?curid=61115
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Individual lamellibranchid tube worms, the longer of two taxa found at seeps can reach lengths of 3 m (10 ft) and live hundreds of years (Fisher et al., 1997; Bergquist et al., 2000). Growth rates determined from recovered marked tube worms have been variable, ranging from no growth of 13 individuals measured one year to a maximum growth of 9.6 cm/yr (3.8 in/yr) in a "Lamellibrachia" individual (MacDonald, 2002). Average growth rate was 2.19 cm/yr (0.86 in/yr) for the "Escarpia"-like species and 2.92 cm/yr (1.15 in/yr) for lamellibrachids. These are slower growth rates than those of their hydrothermal vent relatives, but "Lamellibrachia" individuals can reach lengths 2–3 times that of the largest known hydrothermal vent species. Individuals of "Lamellibrachia" sp. in excess of 3 m (10 ft) have been collected on several occasions, representing probable ages in excess of 400 years (Fisher, 1995). Vestimentiferan tube worm spawning is not seasonal and recruitment is episodic.
https://en.wikipedia.org/wiki?curid=400223
555,646
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About 800 Papuan civilians were working in the Port Moresby area in April 1942. Responding to increasing calls for carriers, ANGAU conscripted 2,033 Papuans in June, 3,354 in July, and 4,947 in August. On 9 October, ANGAU was maintaining 9,270 Papuan workers. Casting such a wide net created problems. Although all spoke Motuan, the prevalence of different dialects meant that they could not all communicate with one another. ANGAU representatives sorted them into groups who spoke the same dialect. Taking away so many able-bodied men caused hardship for their families and villages, as jobs they normally performed went undone, and food production fell away. However, atrocities committed by the Japanese against Papuan and New Guinea civilians proved a persuasive recruiting tool.
https://en.wikipedia.org/wiki?curid=51118476
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By the early 1870s, practical optics had become John Browning's primary interest, and he listed his occupation as optician on the census records from 1871 to 1901. He was well known among London's ophthalmic surgeons for his various ophthalmic instruments. Browning had a large part in reforming the art of crafting spectacles. Employees of his company tested people's eyesight and made eyeglasses for them. John Browning was the author of the book, "How to Use Our Eyes and How to Preserve them by the Aid of Spectacles". Published in 1883, the book included thirty-seven illustrations, including a diagram demonstrating the anatomy of the eye "(pictured)". In 1895, he was one of the founders of the British Optical Association, the first professional and examining organisation for optometry. He was not only its first president, but also registered as its first member, so that many consider him to be the first professional optometrist.
https://en.wikipedia.org/wiki?curid=35561022
2,125,551
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The "Pendolino" incorporates several different onboard safety systems, including the Automatic Warning System (AWS) and the Train Protection Warning System (TPWS); it was also planned to install compatible equipment for the European Train Control System (ETCS). These systems automatically deliver situational warnings regarding the relevant signals and speed limits to the driver and, if not reacted to appropriately, are able to bring the train to a complete halt. Unlike most trains, it also features a "Tilt Authorisation and Speed Supervision" (TASS) system, which is used to control the onboard tilting mechanism. In the event of an accident, each Pendolino also incorporates a black box data recorder; another structural measure, designed to help dissipate the forces involved in an incident involving a severe collision, are the crush zones, which can reportedly absorb three times the forces of existing High Speed Trains.
https://en.wikipedia.org/wiki?curid=1438262
749,428
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Phasmatodea eggs resemble seeds in shape and size and have hard shells. They have a lid-like structure called an operculum at the anterior pole, from which the nymph emerges during hatching. The eggs vary in the length of time before they hatch which varies from 13 to more than 70 days, with the average around 20 to 30 days. Some species, particularly those from temperate regions, undergo diapause, where development is delayed during the winter months. Diapause is initiated by the effect of short day lengths on the egg-laying adults or can be genetically determined. Diapause is broken by exposure to the cold of winter, causing the eggs to hatch during the following spring. Among species of economic importance such as "Diapheromera femorata", diapause results in the development of two-year cycles of outbreaks.
https://en.wikipedia.org/wiki?curid=341989
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In the Author's Preface to "Project Mars: A Technical Tale", written by von Braun in 1950 in Fort Bliss, he states that the purpose of the book is to "stimulate interest in space travel". He said that all the book's scientific data is derived from "the results of careful computations or tested scientific observations", which includes the physical characteristics of Mars. Von Braun goes on to say that once his explorers land on the planet, "the solid, scientific platform upon which we have stood sinks beneath our feet and we tread upon the fairy bridge of fantasy". The Martian canals are speculation and the inhabitants are fiction. Von Braun concluded that "readers who may have gagged a bit on the mass of technical detail upon which they fed during the long voyage through space, this part of the story may offer opportunities for ruminative philosophical reflection."
https://en.wikipedia.org/wiki?curid=66028263
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In 2016, Ascent Flight Training selected Airbus Helicopters to supply 32 helicopters to train Fleet Air Arm, Army Air Corps and Royal Air Force rotary aircrew in a £500m contract out to 2033. Airbus will provide 29 H135 airframes, to be known as Juno HT1 in service, and 3 H145 airframes, known as Jupiter HT1. Due to the reduced requirement for Search and Rescue training following the privatisation of SAR provision, only 3 larger H145 aircraft are to be procured. The fleet is entirely twin-engine, replacing the single engine Squirrel HT.1 in service, as nearly all helicopters now operated by the UK military are twin-engined, apart from the Army Gazelle AH.1, which is due for retirement. Full training capability was expected by 1 April 2018, the RAF's 100th anniversary, to operate from RAF Shawbury and AAC Middle Wallop. Ascent expects to train 286 tri-service aircrew a year. In 2020 was ordered 4 more H145
https://en.wikipedia.org/wiki?curid=44092692
1,135,549
631,962
The Millon Clinical Multiaxial Inventory – Fourth Edition (MCMI-IV) is the most recent edition of the Millon Clinical Multiaxial Inventory. The MCMI is a psychological assessment tool intended to provide information on personality traits and psychopathology, including specific mental disorders outlined in the DSM-5. It is intended for adults (18 and over) with at least a 5th grade reading level who are currently seeking mental health services. The MCMI was developed and standardized specifically on clinical populations (i.e. patients in clinical settings or people with existing mental health problems), and the authors are very specific that it should not be used with the general population or adolescents. However, there is evidence base that shows that it may still retain validity on non-clinical populations, and so psychologists will sometimes administer the test to members of the general population, with caution. The concepts involved in the questions and their presentation make it unsuitable for those with below average intelligence or reading ability.
https://en.wikipedia.org/wiki?curid=8805917
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Scientists debate whether "Smilodon" was social. One study of African predators found that social predators like lions and spotted hyenas respond more to the distress calls of prey than solitary species. Since "S. fatalis" fossils are common at the La Brea Tar Pits, and were likely attracted by the distress calls of stuck prey, this could mean that this species was social as well. One critical study claims that the study neglects other factors, such as body mass (heavier animals are more likely to get stuck than lighter ones), intelligence (some social animals, like the American lion, may have avoided the tar because they were better able to recognize the hazard), lack of visual and olfactory lures, the type of audio lure, and the length of the distress calls (the actual distress calls of the trapped prey animals would have lasted longer than the calls used in the study). The author of that study ponders what predators would have responded if the recordings were played in India, where the otherwise solitary tigers are known to aggregate around a single carcass. The authors of the original study responded that though effects of the calls in the tar pits and the playback experiments would not be identical, this would not be enough to overturn their conclusions. In addition, they stated that weight and intelligence would not likely affect the results as lighter carnivores are far more numerous than heavy herbivores and the social (and seemingly intelligent) dire wolf is also found in the pits.
https://en.wikipedia.org/wiki?curid=169071
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Among Leptothecata’s diversified species, they have great variability within their organization and life cycles. Leptothecata can be found worldwide in all marine environments. The location of where Leptothecata are found ranges from shallow waters to the deep sea, most being marine species. In their polyp and medusa form, due to natural factors they can travel outside their native location. This is usually done by currents or if attached to other vertebrates. Due to the hydroids' broad range of locations, they also have been known to play in many ecosystem factors. They provide shelter and protection and are a known food source for other marine species. Leptothecata has been the main attraction in many great expeditions and studies due to the broad spectrum of thecate hydroids within their order. These developments have led to further discoveries of finding locations where thecate hydroids can be relatively rich in the marine environment. Allowing researchers to study a range of differences based on the colonies, the hydrotheca and even the pairs of thecae themselves.
https://en.wikipedia.org/wiki?curid=18349037
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To improve the gait pattern, orthotics can be included in the therapy concept. An Orthosis can support physiotherapeutic treatment in setting the right motor impulses in order to create new cerebral connections. The orthosis must meet the requirements of the medical prescription. In addition, the orthosis must be designed by the orthotist in such a way that it achieves the effectiveness of the necessary levers, matching the gait pattern, in order to support the proprioceptive approaches of physiotherapy. The orthotic concepts of the treatment are based on the concepts for the patients with cerebral palsy. The characteristics of the stiffness of the orthosis shells and the adjustable dynamics in the ankle joint are important elements of the orthosis to be considered. The orthotic concepts of the treatment are based on the concepts for the patients with cerebral palsy. Due to these requirements, the development of orthoses has changed significantly in recent years, especially since around 2010. At about the same time, care concepts were developed that deal intensively with the orthotic treatment of the lower extremities in cerebral palsy. Modern materials and new functional elements enable the rigidity to be specifically adapted to the requirements that fits to the gait pattern of the patient. The adjustment of the stiffness has a decisive influence on the gait pattern and on the energy cost of walking. It is of great advantage if the stiffness of the orthosis can be adjusted separately from one another via resistances of the two functional elements in the two directions of movement, dorsiflexion and plantar flexion.
https://en.wikipedia.org/wiki?curid=1057414
125,896
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When the JILA team raised the magnetic field strength further, the condensate suddenly reverted to attraction, imploded and shrank beyond detection, then exploded, expelling about two-thirds of its 10,000 atoms. About half of the atoms in the condensate seemed to have disappeared from the experiment altogether, not seen in the cold remnant or expanding gas cloud. Carl Wieman explained that under current atomic theory this characteristic of Bose–Einstein condensate could not be explained because the energy state of an atom near absolute zero should not be enough to cause an implosion; however, subsequent mean-field theories have been proposed to explain it. Most likely they formed molecules of two rubidium atoms; energy gained by this bond imparts velocity sufficient to leave the trap without being detected.
https://en.wikipedia.org/wiki?curid=4474
87,576
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Local environmental conditions play a large role in the prevalence of "F. pseudograminearum". This is particularly evident during late season when the crops are maturing. While both rainfall and temperature are important, studies have shown that rainfall plays a much larger role in the prevalence and severity of crown rot, although a weak temperature-disease correlation does exist. In the field survey of wheat crops in Australia, the maximum summer temperature in areas where "F. pseudograminearum" was found to be as high as 31 °C. Under drought conditions, where warm and dry weather predominates, crown rot symptoms are intensified. This is largely due to the pathogen's ability to survive and thrive under these conditions. Laboratory studies suggest that "F. pseudograminearum" grows best under dry (<-1MPa) conditions. They further showed that while the pathogen grew fairly well in temperatures ranging from 5 °C to 30 °C, it does not grow well at 5 °C or 35 °C.
https://en.wikipedia.org/wiki?curid=11127771
2,016,498
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In 2014, a study by Carman and Evans argued for a new dating of approximately 200 BC based on identifying the start-up date on the Saros Dial as the astronomical lunar month that began shortly after the new moon of 28 April 205 BC. According to Carman and Evans, the Babylonian arithmetic style of prediction fits much better with the device's predictive models than the traditional Greek trigonometric style. A study by Paul Iversen published in 2017 reasons that the prototype for the device was from Rhodes, but that this particular model was modified for a client from Epirus in northwestern Greece; Iversen argues that it was probably constructed no earlier than a generation before the shipwreck, a date supported also by Jones.
https://en.wikipedia.org/wiki?curid=89732
28,320
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An additional environmental benefit of a green roof is the ability to sequester carbon. Carbon is the main component of plant matter and is naturally absorbed by plant tissue. The carbon is stored in the plant tissue and the soil substrate through plant litter and root exudates. A study on green roofs in Michigan and Maryland found the above ground biomass and below ground substrate stored on average between 168 g C m and 107 g C m . Variations occurred among the different species of plant used. Substrate carbon content averaged 913 g C m and after the subtraction of the original carbon content the total sequestration was 378 g C m. The sequestration can be improved by changing plant species, increasing substrate depth, substrate composition, and management practices. In a study done in Michigan above ground sequestration ranged from 64 g C m to 239 g C m for S. acre and S album. Also, by increasing the substrate depth would allow for more area of carbon storage and diversify the types of plants with greater potential of carbon storage. The direct carbon sequestration techniques and methods can be measured and accounted for. Green roofs also indirectly reduce CO given off by power plants through their ability to insulate buildings. Buildings in the US account for 38% of the total carbon dioxide emissions. A model supported by the U.S. Department of Energy found a 2 percent reduction in electricity consumption and 9-11% reduction in natural gas when implementing green roofs.
https://en.wikipedia.org/wiki?curid=192025
1,019,009
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In Arkansas, the aluminum hydroxides in bauxite form small oolites and pea-sized pisolites and outcrop or are located very close to the surface under thin sediments. The resource was first mined in 1898, 11 years after the State Geologist, John Branner, identified it in a sample from Pulaski County, Arkansas. In addition to the deposit in Pulaski County, south and east of Little Rock, there is a second deposit in Saline County, Arkansas close to Benton. During the Cretaceous and early Cenozoic, islands of syenite in the flooded Mississippi Embayment experienced tropical monsoon conditions and weathered into laterite, stripping away many elements and leaving sediment enriched in aluminum. Initially, Arkansas bauxite met 90% of US aluminum demand. Underground mining before and during World War II gave way to open pit mining in the 1960s. During the war, up to six million tons were mined in 1943. Arkansas bauxite mines were often passed over in favor of higher quality bauxite reserves in the Caribbean and mining ceased in 1982. The state has small amounts of gallium associated with bauxite deposits.
https://en.wikipedia.org/wiki?curid=57674182
2,124,882
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Data on water exposure are generally collected using questionnaires, but may also be determined from actual measurements of water ingested, or estimated from previously published data. Respondents are asked to report the frequency and timing and location of exposures, detailed information about the amount of water swallowed and head submersion, and basic demographic characteristics such as age, gender, socioeconomic status and family composition. Once sufficient data are collected and determined to be representative of the general population, they are usually fit with distributions, and these distribution parameters are then used in the risk assessment equations. Monitoring data representing occurrence of pathogens, direct measurement of pathogen concentrations, or estimations deriving pathogen concentrations from indicator bacteria concentrations, are also fit with distributions. Dose is calculated by multiplying the concentration of pathogens per volume by volume. Dose-responses can also be fit with a distribution.
https://en.wikipedia.org/wiki?curid=6250168
1,664,339
941,595
The armed forces command structure was changed by Hitler in 1938, with an Armed Forces HQ (the "Oberkommando der Wehrmacht", usually contracted to "OKW") placed over the army command ("Oberkommando des Heeres" or "OKH") and the other service commands and almost entirely displacing the Reich War Ministry. However, OKW from its inception had generally weaker, more pliant staff officers than OKH and the Luftwaffe. A weakness of both the "Kriegsakademie" curriculum and General Staff doctrine was that it focused primarily on tactical and operational matters. There was no institution comparable to the United States National War College or the British Imperial Defence College where higher-ranking officers of all services could study wider economic, political and diplomatic issues related to broad strategy.
https://en.wikipedia.org/wiki?curid=438600
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"The Atom" comic book, showcasing the adventures of Ray Palmer, brought the Atom of Earth-2 together with the Atom of Earth-1. Issue #29 (1967) depicts Al Pratt as living in Calvin City and as being a professor at Calvin College; he also possesses a modified automobile that transforms from an ordinary convertible to the "Atomobile". In this story it is Ray Palmer who builds a "special dimensional vibrator" that allows travel between the two Earths. The villain in this adventure is The Thinker. In issue #36 (1968) Al Pratt is specifically named a professor of nuclear physics at Calvin College. Built into the belt of his Atom uniform is his own "atomic vibrator" which allows travel between the Earths. Al is depicted as a young-looking man who is "so busy as the Atom" that he "sort of let romance pass [him] by". Shown also are his friends Bill and Betty Roberts, as well as his first meeting with Marion Thayer on a double date. It is unknown what had happened to Marion Thayer, but in "DC Comics Presents" #30 (February 1981), Pratt's wife Mary resembles the blonde Thayer more than the brunette James.
https://en.wikipedia.org/wiki?curid=4978976
1,009,045
1,768,445
High efficiency glandless circulating pumps have become the industry standard when developing and maintaining buildings within the European Union due to recent changes to the carbon emissions goals. Commercial and residential buildings now have to be outfitted with these pumps in order to decrease electricity usage and, in the long run, decrease the amount of pollutants produced. This new standard, referred to as the energy efficiency index (EEI), will set the bare minimum efficiency level at 0.27, and set the efficiency grading scale from this base value. The EU has also scheduled the efficiency scale to be revised again by 1 August 2015 to set the minimum efficiency to 0.23. Various companies such as Wilo have successfully developed pumps that have been projected to save up to 80% in electricity usage, meeting both of the new grading scale minimums set this year and in 2015. Pump designs are still being revised to continually try to achieve higher efficiency standards and lower the impact on the environment in order to meet the goal of up to a 50% reduction in both emissions and electricity usage across the EU by 2020.
https://en.wikipedia.org/wiki?curid=37215299
1,767,451
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The diagnosis of disease caused by "A. cantonensis" infestation is often difficult and relies heavily on the history of a likely ingestion of a commonly infested host and the presence of typical features of the disease. The presumptive diagnosis is particularly strong when eosinophilic meningoencephalitis can be confirmed. The diagnosis of eosinophilic meningitis can be arrived at through detection of elevated cranial pressure and increased numbers of eosinophils. The diagnosis of the cause of eosinophilic meningitis and the presence of "A. cantonensis" is remarkably more difficult. A spinal tap, or a sample of CSF, must be taken to search for "A. cantonensis" worms or larvae. "A. cantonensis" is undetectable in the CSF of more than half of the infected individuals. Current methods of detecting specific antigens associated with "A. cantonensis" are also unreliable. Consequently, alternative approaches to detect antigen-antibody reactions are being explored, such as immuno-PCR. A rapid dot-blot ELISA test is also available for quick, effective, and economical on-site diagnosis of "A. cantonensis".
https://en.wikipedia.org/wiki?curid=17048535
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In terms of comparison, the phycosphere in phytoplankton has been suggested analogous to the rhizosphere in plants, which is the root zone important for nutrient recycling. Both plant roots and phytoplankton exude chemicals which alter their immediate surrounds drastically – including altering the pH and oxygen levels. In terms of community construction, chemotaxis is used in both environments in order to propagate the recruitment of microbes. In the rhizosphere, chemotaxis is used by the host – the plant – to mediate the motility of the soil which allows for microbial colonization. In the phycosphere, the phytoplankton release of specific chemical exudates elicits a response from bacterial symbionts who exhibit chemotaxis signaling, thereby enabling the recruitment of microbes and subsequent colonization. The interfaces also have a few similar microbes, chemicals, and metabolites involved in the host – symbiont interactions. This includes microbes such as Rhizobium, which in the phycospheres of green algae was found to be the foremost microbe when compared to other abundant community members. Chemicals such as dimethylsuloniopropionate (DMSP) and 2,3-dihydroxypropane-1-sulfonate (DHPS) and metabolites such as sugars and amino acids are implicated in the mechanisms of action of both microbiomes.
https://en.wikipedia.org/wiki?curid=44148074
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The best characterized function of p97 is to mediate a network of protein quality control processes in order to maintain protein homeostasis. These include endoplasmic reticulum-associated protein degradation (ERAD) and mitochondria-associated degradation. In these processes, ATP hydrolysis by p97/CDC48 is required to extract aberrant proteins from the membranes of the ER or mitochondria. p97/CDC48 is also required to release defective translation products stalled on ribosome in a process termed ribosome-associated degradation. It appears that only after extraction from the membranes or large protein assembly like ribosome, can polypeptides be degraded by the proteasome. In addition to this ‘segregase’ function, p97/CDC48 might have an additional role in shuttling the released polypeptides to the proteasome. This chaperoning function seems to be particularly important for degradation of certain aggregation-prone misfolded proteins in nucleus. Several lines of evidence also implicate p97 in autophagy, a process that turns over cellular proteins (including misfolded ones) by engulfing them into double-membrane-surrounded vesicles named autophagosome, but the precise role of p97 in this process is unclear.
https://en.wikipedia.org/wiki?curid=14700825
1,257,052
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The first efforts to write Inuktitut came from Moravian missionaries in Greenland and Labrador in the mid-19th century using Latin script. The first book printed in Inuktitut using Cree script was an 8-page pamphlet known as "Selections from the Gospels in the dialect of the Inuit of Little Whale River" (, "Jesus' words"), printed by John Horden in 1855–56 at Moose Factory for Edwin Arthur Watkins to use among the Inuit at Fort George. In November 1865, Horden and Watkins met in London under Henry Venn's direction to adapt Cree syllabics to the Inuktitut language. In the 1870s, Edmund Peck, another Anglican missionary, started printing according to that standard. Other missionaries, and later linguists in the employ of the Canadian and American governments, adapted the Latin alphabet to the dialects of the Mackenzie River delta, the western Arctic islands and Alaska.
https://en.wikipedia.org/wiki?curid=379291
1,005,975
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The relationship between the sporophyte and gametophyte phases varies among different groups of plants. In the majority of algae, the sporophyte and gametophyte are separate independent organisms, which may or may not have a similar appearance. In liverworts, mosses and hornworts, the sporophyte is less well developed than the gametophyte and is largely dependent on it. Although moss and hornwort sporophytes can photosynthesise, they require additional photosynthate from the gametophyte to sustain growth and spore development and depend on it for supply of water, mineral nutrients and nitrogen. By contrast, in all modern vascular plants the gametophyte is less well developed than the sporophyte, although their Devonian ancestors had gametophytes and sporophytes of approximately equivalent complexity. In ferns the gametophyte is a small flattened autotrophic prothallus on which the young sporophyte is briefly dependent for its nutrition. In flowering plants, the reduction of the gametophyte is much more extreme; it consists of just a few cells which grow entirely inside the sporophyte.
https://en.wikipedia.org/wiki?curid=66535
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Computerised cephalometrics is the process of entering cephalometric data in digital format into a computer for cephalometric analysis. Digitization (of radiographs) is the conversion of landmarks on a radiograph or tracing to numerical values on a two- (or three-) dimensional coordinate system, usually for the purpose of computerized cephalometric analysis. The process allows for automatic measurement of landmark relationships. Depending on the software and hardware available, the incorporation of data can be performed by digitizing points on a tracing, by scanning a tracing or a conventional radiograph, or by originally obtaining computerized radiographic images that are already in digital format, instead of conventional radiographs. Computerized cephalometrics offers the advantages of instant analysis; readily available race-, sex- and age-related norms for comparison; as well as ease of soft tissue change and surgical predictions. Computerized cephalometrics has also helped in eliminating any surgeon inadequacies as well as making the process less time-consuming.
https://en.wikipedia.org/wiki?curid=18717746
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The evidence given by proponents of a bolide or meteorite impact event includes "black mats", or strata of organic-rich soil that have been identified at about 50 archaeological sites across North America. Using statistical analysis and modeling, James P. Kennett and others concluded that widely separated organic-rich layers, including "black mats", were deposited synchronously across multiple continents as an identifiable "Younger Dryas boundary layer". In 2019, Jorgeson and others tested this conclusion with the simulation of radiocarbon ages. They accounted for measurement error, calibration uncertainty, "old wood" effects, and laboratory measurement biases, and compared against the dataset of radiocarbon ages for the Laacher See eruption. They found the Laacher See 14C dataset to be consistent with expectations of synchroneity. They found the Younger Dryas boundary layer 14C dataset to be inconsistent with the expectations for its synchroneity, and the synchronous global deposition of the hypothesized Younger Dryas boundary layer to be extremely unlikely.
https://en.wikipedia.org/wiki?curid=11338425
108,815
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Luhansk State Medical University (Луганський державний медичний університет) was founded in 1956 in Luhansk, Ukraine. Initially known as Voroshilovgrad State Medical Institute (Ворошиловградский государственный медицинский институт), it received university status in 1994. In 1979 the then institute began offering postgraduate training, and from 1983 it began training foreign students in paediatrics, recruiting students from Middle Eastern countries (Iran, Iraq); Africa (Ghana, Nigeria, Egypt, Libya, Morocco); and Asia (India, Malaysia, Singapore). In 1998 the university also opened schools of pharmacy and dentistry. The university has three academic buildings with scientific laboratories, a pharmacy, a dental clinic, a library and a fitness centre, and it has operated a number of clinics in Luhansk's various medical institutions.
https://en.wikipedia.org/wiki?curid=16253782
1,671,524
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Botanical Latin is best described as a modern Romance language of special technical application, derived from Renaissance Latin with much plundering of ancient Greek, which has evolved, mainly since 1700 and primarily through the work of Carl Linnaeus (1707–78), to serve as an international medium for the scientific naming of plants in all their vast numbers and manifold diversity. These include many thousands of plants unknown to the Greeks and Romans of classical times and for which names have had to be provided as a means of reference. Their description necessitates the recording of structures often too small for comprehension by the naked eye, hence unknown to the ancients and needing words with precise restricted applications foreign to classical Latin.
https://en.wikipedia.org/wiki?curid=51212902
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Ongoing debate revolves around the neck posture of brachiosaurids, with estimates ranging from near-vertical to horizontal orientations. The idea of near-vertical postures in sauropods in general was popular until 1999, when Stevens and Parrish argued that the sauropod neck was not flexible enough to be held in an upright, S-curved pose, and instead was held horizontally. Reflecting this research, various newspapers ran stories criticizing the Field Museum "Brachiosaurus" mount for having an upward curving neck. Museum paleontologists Olivier Rieppel and Christopher Brochu defended the posture in 1999, noting the long forelimbs and upward sloping backbone. They also stated that the most developed neural spines for muscle attachment being positioned in the region of the shoulder girdle would have permitted the neck to be raised in a giraffe-like posture. Furthermore, such a pose would have required less energy than lowering its neck, and the inter-vertebral discs would not have been able to counter the pressure caused by a lowered head for extended periods of time (though lowering its neck to drink must have been possible). Some recent studies also advocated a more upward directed neck. Christian and Dzemski (2007) estimated that the middle part of the neck in "Giraffatitan" was inclined by sixty to seventy degrees; a horizontal posture could be maintained only for short periods of time.
https://en.wikipedia.org/wiki?curid=20598015
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Members of arrestin/beta-arrestin protein family are thought to participate in agonist-mediated desensitization of G-protein-coupled receptors and cause specific dampening of cellular responses to stimuli such as hormones, neurotransmitters, or sensory signals. S-arrestin, also known as S-antigen, is a major soluble protein in photoreceptor cells that is involved in desensitization of the photoactivated transduction cascade. It is expressed in the retina and the pineal gland and inhibits coupling of rhodopsin to transducin in vitro. Additionally, S-arrestin is highly antigenic, and is capable of inducing experimental autoimmune uveoretinitis. Mutations in this gene have been associated with Oguchi disease, a rare autosomal recessive form of night blindness.
https://en.wikipedia.org/wiki?curid=14765038
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His research has focussed on antibody and T cell receptor gene diversity, gene rearrangement and aberrant rearrangement of chromosomes (chromosomal translocations) in cancer. He pioneered the method of cDNA cloning, an approach universally used in bioscience and biotechnology, and elucidated the organization, diversity and rearrangement of human antibody genes, which defined the building blocks for construction of therapeutic antibody repertoires. He also pioneered chimaeric antibodies (with the late Michael Neuberger). He discovered the LMO and HOX11 chromosomal translocation oncogene families in T cell leukaemia and the first fusion gene in a solid tumour. He developed the first knock-in gene, now a widely employed approach in gene targeting and gene editing. He also pioneered the design of intracellular antibody single domain fragments (iDAbs) and established approaches to develop these macromolecules (these he called macrodrugs) with warheads to induce cellular phenotypes). He has developed methods to select chemical compound surrogates using single domain intracellular antibody fragments as competitors. These methods have resulted in drug leads for the previously considered undruggable RAS proteins and the hard-to-drug translocation proteins LMO2. His methods allow the use of intracellular antibody fragments to select chemical compounds that bind to disordered proteins within cells. Since 2020, his laboratory work has been focussed on developing methods to deliver intracellular antibody fragments into cells as drugs per se and targeting fusion proteins made from chromosomal translocations.
https://en.wikipedia.org/wiki?curid=41689643
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His research at the Bronze Age sites of Ban Non Wat has shown that the initial Bronze Age in this part of Southeast Asia began in the 11th century BCE. With his son, Thomas, Professor of Archaeological Science at Oxford University, he has re-dated the site of Ban Chiang, showing that there too, contrary to claims from the University of Pennsylvania, bronze casting also began in the 11th century BCE. His current research involves excavations at the Iron Age site of Non Ban Jak. There, he has identified for the first time in Thailand, an extensive area comprising the residential quarter of an Iron Age town, complete with houses, a lane, an iron working area and several ceramic kilns. In conjunction with many colleagues, he has linked a period of increased aridity with the start of an agricultural revolution that stimulated the rise of early states.
https://en.wikipedia.org/wiki?curid=5745144
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United States and China both scored a 3–1 win against two South American teams, Argentina and Brazil. The American players earned success against Argentina with the White pieces as Fabiano Caruana defeated Fernando Peralta on board one and Wesley So defeated Federico Perez Ponsa on board three. Ray Robson played a move with the wrong rook to give Diego Flores a chance to play for a win but the position still looked holdable for Black and the game was drawn with a perpetual check. Hikaru Nakamura suffered in most of the game after Sandro Mareco outplayed him in the opening and brought the game to a winning position being two pawns up; however, on move 64, he missed a clearance idea to give his king more space that would have resulted in a win (see diagram). In contrast to the United States, the Chinese players won their match against Brazil as a result of two wins with the Black pieces and two draws. Wang Yue won a 114-move long game against Alexandr Fier, while Yu Yangyi escaped from a worse position against Evandro Amorim Barbosa and even won after the Brazilian blundered with his king on move 37 and resigned immediately.
https://en.wikipedia.org/wiki?curid=51472590
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In 2009, a US military report stated that "Practical laser-based systems for deep depths were unavailable because lasers operating at the right color with enough power efficiency to be used in satellites did not exist. DARPA is striving towards a blue laser efficient enough to make submarine laser communications at depth and speed a near-term reality. A recently demonstrated laser will be matched with a special optical filter to form the core of a communications system with a signal-to-noise ratio thousands of times better than other proposed laser systems. If DARPA can demonstrate such a system under realistic conditions, it would dramatically change how submarines can communicate and operate, thereby greatly enhancing mission effectiveness, for example, in anti-submarine warfare."
https://en.wikipedia.org/wiki?curid=965929
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Cospas-Sarsat is in the process of specifying a new, additional beacon modulation and message scheme based on spread-spectrum technology with quadrature phase-shift keying (QPSK). Presently beacons that will use this scheme are termed "second generation" beacons. This technology will allow the use of battery-saving lower-power transmissions, improve the accuracy of the determination of the beacon location by the Cospas-Sarsat System, and avoid the need for discrete channelization in the assigned 406.0 to 406.1 MHz band (e.g., avoiding the need for periodic closing and opening of channels by Cospas-Sarsat for use by beacon manufacturers based on narrowband channel loading). Second-generation beacons will have a longer transmission period of one second, with 250 transmitted bits, 202 of those being message bits. Additionally, the information sent in the message bits from one transmission to the next can be changed on a rotating transmission schedule ("rotating message fields") to allow significantly more information to be communicated over the course of a series of transmission bursts.
https://en.wikipedia.org/wiki?curid=3043414
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Failure of conservative treatments such as stretching and strengthening of the piriformis muscle or a high level of immediate pain intensity may bring into consideration various therapeutic injections such as local anesthetics (e.g., lidocaine), anti-inflammatory drugs and/or corticosteroids, botulinum toxin (BTX, Botox), or a combination of the three, all of which have a well-documented effectiveness at relieving muscle-related pain. Injection technique is a significant issue since the piriformis is a very deep-seated muscle. A radiologist may assist in this clinical setting by injecting a small dose of medication containing a paralysing agent such as botulinum toxin under high-frequency ultrasound or CT control. This inactivates the piriformis muscle for 3 to 6 months, without resulting in leg weakness or impaired activity. Though the piriformis muscle becomes inactivated, the surrounding muscles quickly take over its role without any noticeable change in strength or gait. Such treatments may be more or less curative (with no return to pain), or may have limited timespans of effectiveness.
https://en.wikipedia.org/wiki?curid=1104401
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Announced in July 2015, the project is observing for thousands of hours every year on two major radio telescopes, the Green Bank Observatory in West Virginia, and the Parkes Observatory in Australia. Previously, only about 24 to 36 hours of telescope per year were used in the search for alien life. Furthermore, the Automated Planet Finder at Lick Observatory is searching for optical signals coming from laser transmissions. The massive data rates from the radio telescopes (24 GB/s at Green Bank) necessitated the construction of dedicated hardware at the telescopes to perform the bulk of the analysis. Some of the data are also analyzed by volunteers in the SETI@home volunteer computing network. Founder of modern SETI Frank Drake was one of the scientists on the project's advisory committee.
https://en.wikipedia.org/wiki?curid=28153
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Evidence from historical linguistics suggests that it is from this island that seafaring peoples migrated, perhaps in distinct waves separated by millennia, to the entire region encompassed by the Austronesian languages . It is believed that this migration began around 6,000 years ago . However, evidence from historical linguistics cannot bridge the gap between those two periods. The view that linguistic evidence connects Austronesian languages to the Sino-Tibetan ones, as proposed for example by , is a minority one. As states:Implied in... discussions of subgrouping [of Austronesian languages] is a broad consensus that the homeland of the Austronesians was in Taiwan. This homeland area may have also included the P'eng-hu (Pescadores) islands between Taiwan and China and possibly even sites on the coast of mainland China, especially if one were to view the early Austronesians as a population of related dialect communities living in scattered coastal settlements.Linguistic analysis of the Proto-Austronesian language stops at the western shores of Taiwan; any related mainland language(s) have not survived. The only exceptions, the Chamic languages, derive from more recent migration to the mainland .
https://en.wikipedia.org/wiki?curid=58800
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Although advanced degrees in education had been available at Union earlier in the 1900s, a team of academic and administrative faculty was formed in 1986 to investigate the possibility of creating an innovative, high-quality teacher education program. They developed Union Graduate College's Master of Arts in Teaching (MAT) program in discipline areas that dove-tailed with the College's academic strengths: biology, chemistry, earth science (geology), French, German, Greek, Latin, mathematics, physics, social studies, and Spanish. The first class of 15 MAT students graduated in 1990.
https://en.wikipedia.org/wiki?curid=3090442
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Contemporary music scholars assert that effective music advocacy uses empirically sound arguments that transcend political motivations and personal agendas. Music education philosophers such as Bennett Reimer, Estelle Jorgensen, David J. Elliott, John Paynter, and Keith Swanwick support this view, yet many music teachers and music organizations and schools do not apply this line of reasoning into their music advocacy arguments. Researchers such as Ellen Winner conclude that arts advocates have made bogus claims to the detriment of defending the study of music, her research debunking claims that music education improves math, for example. Researchers Glenn Schellenberg and Eugenia Costa-Giomi also criticize advocates incorrectly associating correlation with causation, Giomi pointing out that while there is a "strong relationship between music participation and academic achievement, the "causal" nature of the relationship is questionable." Philosophers David Elliott and Marissa Silverman suggest that more effective advocacy involves shying away from "dumbing down" values and aims through slogans and misleading data, energy being better focused into engaging potential supporters in active music-making and musical-affective experiences, these actions recognizing that music and music-making are inherent to human culture and behavior, distinguishing humans from other species. The focus is also on advocacy of music education as important, despite disparities in income and social status. Woodrow Wilson said "We want one class of persons to have a liberal education, and we want another class of persons, a very much larger class of necessity in every society, to forgo the privilege of a liberal education and fit themselves to perform specific difficult manual tasks."
https://en.wikipedia.org/wiki?curid=2025792
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After receipt of his doctorate, Brillouin became the scientific secretary of the reorganized "Journal de Physique et le Radium". In 1932, he became associate director of the physics laboratories at the Collège de France. In 1926, Gregor Wentzel, Hendrik Kramers, and Brillouin independently developed what is known as the Wentzel–Kramers–Brillouin approximation, also known as the "WKB method", "classical approach", and "phase integral method". In 1928, after the Institut Henri Poincaré was established, he was appointed as professor to the Chair for Theoretical Physics. During his work on the propagation of electron waves in a crystal lattice, he introduced the concept of Brillouin zones in 1930. Quantum mechanical perturbations techniques by Brillouin and by Eugene Wigner resulted in what is known as the Brillouin–Wigner formula.
https://en.wikipedia.org/wiki?curid=1612715
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The 1879 and 1894 editions of the "Vorlesungen" included supplements introducing the notion of an ideal, fundamental to ring theory. (The word "Ring", introduced later by Hilbert, does not appear in Dedekind's work.) Dedekind defined an ideal as a subset of a set of numbers, composed of algebraic integers that satisfy polynomial equations with integer coefficients. The concept underwent further development in the hands of Hilbert and, especially, of Emmy Noether. Ideals generalize Ernst Eduard Kummer's ideal numbers, devised as part of Kummer's 1843 attempt to prove Fermat's Last Theorem. (Thus Dedekind can be said to have been Kummer's most important disciple.) In an 1882 article, Dedekind and Heinrich Martin Weber applied ideals to Riemann surfaces, giving an algebraic proof of the Riemann–Roch theorem.
https://en.wikipedia.org/wiki?curid=23475106
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As the Mk. IVA was modified into its improved Mk. V, the Mk. VI followed suit. But by early 1941 it was decided to make the Mk. VI an entirely new design, to more easily fit in small aircraft. EMI had already been awarded a contract for a dozen prototype units in October 1940 for delivery in February, but these continued changes made this impossible. Nevertheless, they presented a production contract for 1,500 units in December. Between December and March, production examples began arriving and displayed an enormous number of problems, which the engineers worked through one-by one. By July the systems were ready for use, and began being installed in the new Defiant Mk. II early in August, but these demonstrated a problem where the system would lock-on to transmissions from other AI aircraft in the area, which resulted in further modifications. It was not until the beginning of December 1941 that these issues were fully solved and the units were cleared for squadron use.
https://en.wikipedia.org/wiki?curid=43239543
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The humerus is very robust with strongly expanded upper and lower joints, combined with a narrow shaft. On the upper shaft an enormous deltopectoral crest is present of which the lower part does not gradually merge with the shaft but is warped to the front, forming a thick knob or lip. All this indicates a very heavy musculature. In the lower arm the robust ulna has a well-developed olecranon process. The wrist and hand bones are not well known. In the pelvis, the front blade of the ilium splayed out to the front, reaching all the way to the widest point of the belly to support the gut. This blade also forms a bone shelf at the rear side of the body. The rear blade of the ilium is shorter than the diameter of the hip socket it was located behind, meaning the leg is located at the rear end of the pelvis, near the tail base and much closer to the midline than the belly sides. The pubic bone is unknown. The ischium is a short, curved, vertically positioned bone strap. The thighbone is short, robust and straight with a low fourth trochanter positioned below the midpoint of the shaft. The robust shinbone is shorter than the thighbone. The foot is not well known but functionally tridactyl with hoof-shaped instead of sharp claws.
https://en.wikipedia.org/wiki?curid=1230089
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Both types employ pulse models: either "micropulse or" "high energy". Micropulse systems utilize intermittent bursts of energy. They developed as a result of ever-increasing computer power, combined with advances in laser technology. They use considerably less energy in the laser, typically on the order of one microjoule, and are often "eye-safe", meaning they can be used without safety precautions. High-power systems are common in atmospheric research, where they are widely used for measuring atmospheric parameters: the height, layering and densities of clouds, cloud particle properties (extinction coefficient, backscatter coefficient, depolarization), temperature, pressure, wind, humidity, and trace gas concentration (ozone, methane, nitrous oxide, etc.).
https://en.wikipedia.org/wiki?curid=41958
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The Oerlikon became best known in its naval applications. Initially the Oerlikon was not looked upon favorably by the Royal Navy as a short-range anti-aircraft gun. In 1937–1938 Lord Louis Mountbatten, then a captain in the Royal Navy, advocated within the Royal Navy to set up an unprejudiced trial for the Oerlikon 20 mm gun, but was unsuccessful. It was not until the Commander-in-Chief of the Home Fleet, Admiral Sir Roger Backhouse, was appointed First Sea Lord that Mountbatten's efforts bore fruit. During the first half of 1939 a contract for 1,500 guns was placed in Switzerland. However, due to delays and then later the fall of France in June 1940, only 109 guns reached the United Kingdom. All Oerlikon guns imported from Switzerland, in 1940, were mounted on various gun carriages to serve as light AA-guns on land.
https://en.wikipedia.org/wiki?curid=1884926
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A jet spray washer cleans by flooding the parts with warm chemical solution and high chemical concentration to clean the parts. In the power wash process the parts are blasted with hot chemical solution utilizing the hydraulic impact force of the cleaning solution as the primary cleaning mechanism. A parts washer utilizing the power washer process operates at a very low concentration of cleaning detergent. The lower concentration causes the cleaning solution to last longer before it becomes supersaturated and requires disposal. Additionally, a low concentration of cleaning chemicals allows for easier rinsing of the detergent from the parts thereby minimizing rinse cycle requirements thus saving water and cycle time. A final factor used in the power wash process is an oscillating manifold system that is non-synchronous to the rotation of the turntable. This system assures that the blasted solution reaches all areas of the parts load that are otherwise blinded by the stationary manifolds used in the jet spray process. All things considered the power wash process is superior to the jet spray process for faster more thorough parts cleaning cycles while minimizing detergent use and waste generation. The power wash process is generally effective for difficult soil removal applications such as burnt hydrocarbons, paint, scale, varnish, carbon, mastic, or rubber.<ref>http:// Additional power wash types of applications generally include cleaning diesel engines, aerospace components, aluminum automobile engine parts and rolling mill equipment.
https://en.wikipedia.org/wiki?curid=21442889
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Two major strategies used for monitoring and controlling "V. pensylvanica" include trapping with synthetic chemical attractants and tree shaking. Experiments on chemical attractants of "V. pensylvanica" and other generalist wasps show the effectiveness of using acetic acid in combination with these chemicals separately: isobutanol, heptyl butyrate, and butyl butyrate. Acetic acid alone did not have the same attractive effects as the chemical combinations. Using a vial dispenser, releasing up to an estimated 2.3 mg of heptyl butyrate per hour increased the number of yellowjackets attracted. In Hawaii, the Christmas tree is a large seasonal import each year. Over 90% of these trees contain live insects. Although "V. pensylvanica" typically resides in ground nests, queens occasionally choose these trees as overwintering sites. One potential strategy to reduce the number of yellowjackets and other generalist predators is applying preharvest permethrin sprays in combination with mechanical tree-shaking.
https://en.wikipedia.org/wiki?curid=21851203
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Information-based complexity (IBC) studies optimal algorithms and computational complexity for the continuous problems that arise in physical science, economics, engineering, and mathematical finance. IBC has studied such continuous problems as path integration, partial differential equations, systems of ordinary differential equations, nonlinear equations, integral equations, fixed points, and very-high-dimensional integration. All these problems involve functions (typically multivariate) of a real or complex variable. Since one can never obtain a closed-form solution to the problems of interest one has to settle for a numerical solution. Since a function of a real or complex variable cannot be entered into a digital computer, the solution of continuous problems involves "partial" information. To give a simple illustration, in the numerical approximation of an integral, only samples of the integrand at a finite number of points are available. In the numerical solution of partial differential equations the functions specifying the boundary conditions and the coefficients of the differential operator can only be sampled. Furthermore, this partial information can be expensive to obtain. Finally the information is often "contaminated" by noise.
https://en.wikipedia.org/wiki?curid=8221717
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750 million years ago (Ma) there is a renewed deposition of BIF which marks a significant change in ocean chemistry. This was likely due to snowball Earth episodes where the entire globe including the oceans was covered in a layer of ice cutting off oxygenation. In the late Neoproterozoic high carbon burial rates increased the atmospheric oxygen level to >10% of its present-day value. In the Latest Neoproterozoic another major oxidizing event occurred on Earth's surface that resulted in an oxic deep ocean and possibly allowed for the appearance of multicellular life.
https://en.wikipedia.org/wiki?curid=2465352
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The propellant is what actually fuels the main function of any firearm (i.e. shooting out the projectile). When a propellant deflagrates (subsonic combustion), the redox reaction breaks its molecular bonds and releases the chemical energy stored within. At the same time, the combustion yields significant amount of gaseous products, which is highly energetic due to the exothermic nature of the reaction. These combustion gases become highly pressurized when confined in a rigid space – such as the cartridge casing (reinforced by the chamber wall) occluded from the front by the projectile (bullet, or wadding containing shots/slug) and from behind by the primer (supported by the bolt/breechblock). When the pressure builds up high enough to overcome the crimp friction between the projectile and the case, the projectile separates from the case and gets "propelled" down the gun barrel by further expansion of the gases like a piston engine, receiving kinetic energy from the propellant gases and accelerating to a very high muzzle velocity within a short distance (i.e. the barrel length). The projectile motion driven by the propellant inside the gun is known as the internal ballistics.
https://en.wikipedia.org/wiki?curid=79270
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Mesentery has been known for thousands of years, however it was unclear whether mesentery is a single organ or there are several mesenteries. The classical anatomical description of the mesocolon is credited to British surgeon Sir Frederick Treves in 1885, although a description of the membrane as a single structure dates back to at least Leonardo da Vinci. Treves is known for performing the first appendectomy in England in 1888; he was surgeon to both Queen Victoria and King Edward VII. He studied the human mesentery and peritoneal folds in 100 cadavers and described the right and left mesocolons as vestigial or absent in the human adult. Accordingly, the small intestinal mesentery, transverse, and sigmoid mesocolons all terminated or attached at their insertions into the posterior abdominal wall. These assertions were included in mainstream surgical, anatomical, embryological, and radiologic literature for more than a century.
https://en.wikipedia.org/wiki?curid=637855
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