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Letelier knew how to channel and cement the aspirations in an establishment of international renown that took the name of Institute, since it was created under the auspices of the prestigious University of Chile, but with a modern constitution that favored research and teaching in topics related to the pedagogy, as it was used in European universities and institutes such as the Institute for Political Studies in Paris or the Colleges of Cambridge University. This model served as an example not only in Chile, where the University of Concepción highlighted with a department of teacher training created in 1919 with the same guidelines of El peda, but also in Latin America. They would be pioneers in pedagogical training in the continent. The work of the Pedagogical Institute was so important that about 80% of Chilean teachers were trained in these classrooms, coming to be considered one of the most prestigious teacher training centers in America. Numerous Pedagogical Missions were destined to form new Pedagogical Centers in other countries like Venezuela and Costa Rica.
https://en.wikipedia.org/wiki?curid=1271753
1,961,467
1,338,041
The paclitaxel drug development process took over 40 years. The anti-tumor activity of a bark extract of the Pacific yew tree was discovered in 1963 as a follow up of a US government plant screening program already in existence 20 years before that. The active substance responsible for the anti-tumor activity was discovered in 1969 and structure elucidation was completed in 1971. Robert A. Holton of Florida State University succeeded in the total synthesis of paclitaxel in 1994, a project that he had started in 1982. In 1989 Holton had also developed a semisynthetic route to paclitaxel starting from 10-deacetylbaccatin III. This compound is a biosynthetic precursor and is found in larger quantities than paclitaxel itself in "Taxus baccata" (the european yew). In 1990
https://en.wikipedia.org/wiki?curid=3901316
1,337,310
604,399
Prior to the era of the Hubble Space Telescope and space probes reaching the outer Solar System, attempts to detect satellites around asteroids were limited to optical observations from Earth. For example, in 1978, stellar occultation observations were claimed as evidence of a satellite for the asteroid 532 Herculina. However, later more-detailed imaging by the Hubble Telescope did not reveal a satellite, and the current consensus is that Herculina does not have a significant satellite. There were other similar reports of asteroids having companions (usually referred to as satellites) in the following years. A letter by astronomer Thomas Hamilton in the "Sky & Telescope" magazine at this time pointed to apparently simultaneous impact craters on Earth (for example, the Clearwater Lakes in Quebec), suggesting that these craters were caused by pairs of gravitationally bound objects.
https://en.wikipedia.org/wiki?curid=212598
604,089
784,292
"M. trogontherii" is derived from "Mammuthus meridionalis", the oldest records of the species are known from China, at around 1.8-2 ma in age from the Nihewan Formation near Majuangou, Hebei. Steppe mammoths arrived in North America across Beringia around 1.5 million years ago, giving rise to the columbian mammoth (the ancestor was previously thought to be "M. meridionalis" but this was due to misinterpretation of tooth wear patterns). Steppe mammoths replaced "Mammuthus meridionalis" between 1-0.7 million years ago in Europe, in a complex diachronous mosaic pattern. European populations of "M. trogontherii" experienced a persistent size reduction towards the end of the Middle Pleistocene. A population of "M. trogontherii" in north east Siberia developed higher tooth plate count after 0.8 mya, reaching "M. primigenius" morphology by 400,000 years ago. "M. primigenius" replaced "M. trogontherii" in Europe around 200 kya. Relict populations of "M. trogontherii" may have persisted in Mongolia and North China well into the Last Glacial Period, with teeth of "M. trogontherii" like morphology in Shanxi being dated to 33.858–24.857 ka BP and Inner Mongolia to c. 33.7 ka BP.
https://en.wikipedia.org/wiki?curid=5657063
783,872
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The Mount Elbert field program also marked the first time that a team of scientists on Alaska's North Slope performed a short-term downhole Modular Dynamics Formation Test (MDT) that confirmed the ability of gas hydrate-bearing formation to release gas through depressurization and provided additional information to complement the earlier tests conducted at the Mallik site in 2002. The results of the MDT test provided key insights into the reservoir response of natural hydrate formations to pressure reduction. Data from the Mount Elbert field test have since been utilized to complete reservoir modeling simulations of an heterogeneous, complex natural gas hydrate-bearing reservoir system at both the well and field-scales. Overall, the operational and technical successes at the Mount Elbert site provided further impetus for industry-government partnerships in gas hydrate research that leverage the existing infrastructure and knowledge base developed through 30 years of industry development on the Alaska North Slope.
https://en.wikipedia.org/wiki?curid=32303587
1,869,698
286,823
For reasons that are not entirely clear, for the most part the Gupta period represented a hiatus in Indian rock-cut architecture, with the first wave of construction finishing before the empire was assembled, and the second wave beginning in the late 5th century, after it ended. This is the case, for example, at the Ajanta Caves, with an early group made by 220 CE at the latest, and a later one probably all after about 460. Instead, the period has left almost the first surviving free-standing structures in India, in particular, the beginnings of Hindu temple architecture. As Milo Beach puts it: "Under the Guptas, India was quick to join the rest of the medieval world in a passion for housing precious objects in stylized architectural frameworks", the "precious objects" being primarily the icons of gods.
https://en.wikipedia.org/wiki?curid=276879
286,668
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Upon the action of the RAG 1/2 enzymes, the cleaved double-stranded DNA is left with hairpin structures at the end of each DNA segment created by the cleavage event. The hairpins are both opened by the Artemis complex, which has endonuclease activity when phosphorylated, providing the free 3' OH ends for TdT to act upon. Once the Artemis complex has done its job and added palindromic nucleotides (P-nucleotides) to the newly opened DNA hairpins, the stage is set for TdT to do its job. TdT is now able to come in and add N-nucleotides to the existing P-nucleotides in a 5' to 3' direction that polymerases are known to function. On average 2-5 random base pairs are added to each 3' end generated after the action of the Artemis complex. The number of bases added is enough for the two newly synthesized ssDNA segments to undergo microhomology alignment during non-homologous end joining according to the normal Watson-Crick base pairing patterns (A-T, C-G). From there unpaired nucleotides are excised by an exonuclease, like the Artemis Complex (which has exonuclease activity in addition to endonuclease activity), and then template-dependent polymerases can fill the gaps, finally creating the new coding joint with the action of ligase to combine the segments. Although TdT does not discriminate among the four base pairs when adding them to the N-nucleotide segments, it has shown a bias for guanine and cytosine base pairs.
https://en.wikipedia.org/wiki?curid=3034920
589,903
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Regardless of the methodology used, in general, the process of creating predictive models involves the same steps. First, it is necessary to determine the project objectives and desired outcomes and translate these into predictive analytic objectives and tasks. Then, analyze the source data to determine the most appropriate data and model building approach (models are only as useful as the applicable data used to build them). Select and transform the data in order to create models. Create and test models in order to evaluate if they are valid and will be able to meet project goals and metrics. Apply the model's results to appropriate business processes (identifying patterns in the data doesn't necessarily mean a business will understand how to take advantage or capitalize on it). Afterward, manage and maintain models in order to standardize and improve performance (demand will increase for model management in order to meet new compliance regulations).
https://en.wikipedia.org/wiki?curid=4141563
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People with obesity hypoventilation syndrome often require NIV initially in their care, but many can be switched to CPAP. American Thoracic Society (ATS) clinical practice guidelines recommend that NIV is provided on discharge with a further sleep study assessment as an outpatient. With regards to initiation of positive pressure treatment, the ATS guidelines recommend that in people being investigated for possible obstructive sleep apnea (OSA, a related condition), measurement of arterial carbon dioxide (in high probability) or venous bicarbonate (in moderate probability) is performed to identify OHS and to determine an indication for treatment. In those with both severe OSA and OHS, initial treatment with CPAP is recommended although the quality of research supporting this over NIV is poor. In the 30% of people with OHS who do not also have severe OSA, NIV may be more effective but is also more cost- and resource-intensive. In those who have both OSA and OHS, poor response to CPAP despite good adherence may be an indication to switch to NIV.
https://en.wikipedia.org/wiki?curid=1805214
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Conidia of "Mycosphaerella coffeicola" are produced year-round and enter the coffee plant through stomata on the underside of a leaf, or through the epidermal cuticle on the upper leaf surface. Inter- and intracellular hyphal growth creates vegetative lesions where sporulation occurs. Conidiophores and conidia are formed here, and then dispersed by wind or by water. Conidiophores emerge in bundles of 3–30 and are often septate and branched. Conidia are elongated, multiseptate, and either straight or slightly curved. They appear glassy and have a conspicuous hilum. The spores can splash from one leaf to another, or onto flowers and berries causing secondary infections. The continuous production of conidia guarantees infection at multiple stages of plant development (in leaves, flowers, and fruit). The fungus can overwinter (i.e. survive a dry season) as conidia in dropped, infected leaves for up to two months. Once humid conditions return, conidia infect new plants or plant parts.
https://en.wikipedia.org/wiki?curid=11127586
1,952,446
804,595
Solar geoengineering (SG) increases Earth's ability to deflect sunlight, e.g., by increasing the albedo of the atmosphere or the surface. While reducing average temperature, it would not address ocean acidification. SG is claimed to be able to take effect rapidly and inexpensively. The effects of any project disappear quickly unless sustained, making their direct effects effectively reversible. The US National Academy of Sciences, Engineering, and Medicine stated in a 2021 report: "The available research indicates that SG could reduce surface temperatures and potentially ameliorate some risks posed by climate change (e.g., to avoid crossing critical climate “tipping points”; to reduce harmful impacts of weather extremes)."
https://en.wikipedia.org/wiki?curid=20694764
804,166
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In the midst of the great depression Richard Vaughan came to Princeton and would helm the team for the next quarter-century. Vaughan would keep the Tigers competitive through much of his tenure and his 159 wins remains a program high 60 years after his retirement. Princeton found it difficult to replace Vaughan, going through 5 coaches in 18 years while producing only two winning records in that time. The team's nadir came under Bill Quackenbush who, despite ending up in the Hall of Fame as a player, was the program's worst coach as far as records go. Quackenbush's tenure began well with Princeton making the ECAC Tournament for the first time, but the following season the team slid to 16th in the conference and would not win more than 5 games a year for the next 5 seasons. Quackenbush remained with the program even after a 1–22 season but resigned in 1973 with the Tigers an afterthought in ECAC Hockey. Princeton would not play another postseason game until 1985, the year after 7 teams left to form Hockey East, and they would not win a playoff game until 1992 under first-year head coach Don Cahoon.
https://en.wikipedia.org/wiki?curid=28793851
1,725,076
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The larger, advanced digital cameras offer a non-optical electronic through-the-lens (TTL) view, via an eye-level electronic viewfinder (EVF) in addition to the rear LCD. The difference in view compared with a DSLR is that the EVF shows a digitally created image, whereas the viewfinder in a DSLR shows an actual optical image via the reflex viewing system. An EVF image has the lag time (that is, it reacts with a delay to view changes) and has a lower resolution than an optical viewfinder but achieves parallax-free viewing using less bulk and mechanical complexity than a DSLR with its reflex viewing system. Optical viewfinders tend to be more comfortable and efficient, especially for action photography and in low-light conditions. Compared with digital cameras with LCD electronic viewfinders, there is no time lag in the image: it is always correct as it is being "updated" at the speed of light. This is important for action or sports photography, or any other situation where the subject or the camera is moving quickly. Furthermore, the "resolution" of the viewed image is much better than that provided by an LCD or an electronic viewfinder, which can be important if manual focusing is desired for precise focusing, as would be the case in macro photography and "micro-photography" (with a microscope). An optical viewfinder may also cause less eye-strain. However, electronic viewfinders may provide a brighter display in low light situations, as the picture can be electronically amplified.
https://en.wikipedia.org/wiki?curid=1181109
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In 1996, he was elected Fellow of the Royal Society of Chemistry, which awarded him the Theophilus Redwood Medal in 2011 for his outstanding contribution to analytical science and especially for "his pioneering work which has led to the development of home blood glucose monitoring technology". He received a higher doctorate from the University of Kent at Canterbury in 2001 for his "outstanding contribution to biosensors" and was presented with an honorary doctorate for his "contribution to higher education" by Bedfordshire University in 2008. He was elected as a Foreign Associate of the National Academy of Engineering in the USA, in 2006, for his exceptional contribution to "glucose sensors, environmental monitors and synthetic recognition molecules" and elected to the Royal Swedish Academy of Engineering Sciences (IVA) in 2013. In 2016, he was awarded the Ukraine’s highest academic distinction, the Vernadsky Gold Medal from the National Academy of Sciences of Ukraine, for his "outstanding achievements in the field of bioelectronics", and in the same year, the Datta Medal by the Federation of European Biochemical Societies.
https://en.wikipedia.org/wiki?curid=38624716
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At University of California, Berkley, Jarzynski studied adiabatic invariants in chaotic classical systems. After graduating with a PhD, he spent ten years at Los Alamos National Laboratory, and since 2006 he has been faculty at the University of Maryland, College Park. His research is primarily in the area of non-equilibrium statistical mechanics, where he has contributed to an understanding of how the laws of thermodynamics apply to nanoscale systems. In 1997, he derived an equality, now known as the Jarzynski equality, that relates nonequilibrium fluctuations to equilibrium free energy differences, a result that has been verified in numerous experiments and has found applications in biophysics and computational chemistry. His current interests also include the thermodynamics of information processing, as well as shortcuts to adiabaticity in quantum, classical and stochastic systems.
https://en.wikipedia.org/wiki?curid=61510559
1,748,788
1,355,750
Prior to the development site-directed mutagenesis techniques, all mutations made were random, and scientists had to use selection for the desired phenotype to find the desired mutation. Random mutagenesis techniques has an advantage in terms of how many mutations can be produced; however, while random mutagenesis can produce a change in single nucleotides, it does not offer much control as to which nucleotide is being changed. Many researchers therefore seek to introduce selected changes to DNA in a precise, site-specific manner. Early attempts uses analogs of nucleotides and other chemicals were first used to generate localized point mutations. Such chemicals include aminopurine, which induces an AT to GC transition, while nitrosoguanidine, bisulfite, and N-hydroxycytidine may induce a GC to AT transition. These techniques allow specific mutations to be engineered into a protein; however, they are not flexible with respect to the kinds of mutants generated, nor are they as specific as later methods of site-directed mutagenesis and therefore have some degree of randomness. Other technologies such as cleavage of DNA at specific sites on the chromosome, addition of new nucleotides, and exchanging of base pairs it is now possible to decide where mutations can go.
https://en.wikipedia.org/wiki?curid=39510164
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For the 2017/18 season, the Capitals moved from Tuggeranong to the air-conditioned and far more comfortable National Convention Centre Canberra, where a basketball court was constructed in the Royal Theatre for $250,000, split evenly between the ACT government and the University of Canberra, the team's major sponsor. Despite solid performances from captain Nat Hurst, Abbey Wehrung, who averaged 9.5 points per game, and Kate Gaze, who shot 35% from the three-point line for 7.4 points per game, the Capitals' court performance oscillated between disappointing and dismal. Following an opening round win that saw them briefly on top of the WNBL ladder, the Capitals went on a thirteen-game losing streak, missing the finals for the seventh year in a row, and finishing sixth.
https://en.wikipedia.org/wiki?curid=4121869
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Homologous recombination proficient (HRP) cancer cells are able to repair the DNA damage, which is caused by chemotherapy such as cisplatin. Thus, HRP cancers are difficult to treat. Studies suggest that homologous recombination can be targeted via c-Abl inhibition. Cancer cells with BRCA mutations have deficiencies in homologous recombination, and drugs to exploit those deficiencies have been developed and used successfully in clinical trials. Olaparib, a PARP1 inhibitor, shrunk or stopped the growth of tumors from breast, ovarian and prostate cancers caused by mutations in the BRCA1 or BRCA2 genes, which are necessary for HR. When BRCA1 or BRCA2 is absent, other types of DNA repair mechanisms must compensate for the deficiency of HR, such as base-excision repair (BER) for stalled replication forks or non-homologous end joining (NHEJ) for double strand breaks. By inhibiting BER in an HR-deficient cell, olaparib applies the concept of synthetic lethality to specifically target cancer cells. While PARP1 inhibitors represent a novel approach to cancer therapy, researchers have cautioned that they may prove insufficient for treating late-stage metastatic cancers. Cancer cells can become resistant to a PARP1 inhibitor if they undergo deletions of mutations in BRCA2, undermining the drug's synthetic lethality by restoring cancer cells' ability to repair DNA by HR.
https://en.wikipedia.org/wiki?curid=2631477
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Optical clocks are currently (2022) still primarily research projects, less mature than rubidium and caesium microwave standards, which regularly deliver time to the International Bureau of Weights and Measures (BIPM) for establishing International Atomic Time (TAI). As the optical experimental clocks move beyond their microwave counterparts in terms of accuracy and stability performance, this puts them in a position to replace the current standard for time, the caesium fountain clock. In the future this might lead to redefining the caesium microwave-based SI second, and other new dissemination techniques at the highest level of accuracy to transfer clock signals will be required that can be used in both shorter-range and longer-range (frequency) comparisons between better clocks and to explore their fundamental limitations without significantly compromising their performance. The BIPM reported in December 2021 based on the progress of optical standards contributing to TAI the Consultative Committee for Time and Frequency (CCTF) initiated work towards a redefinition of the second expected during the 2030s.
https://en.wikipedia.org/wiki?curid=25453985
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The controversy whether the Channeled Scabland landforms were formed mainly by multiple periodic floods, or by a single grand-scale cataclysmic flood from late Pleistocene Glacial Lake Missoula or from an unidentified Canadian source, continued through 1999. Shaw's team of geologists reviewed the sedimentary sequences of the Touchet beds and concluded that the sequences do not automatically imply multiple floods separated by decades or centuries. Rather, they proposed that sedimentation in the Glacial Lake Missoula basin was the result of jökulhlaups draining into Lake Missoula from British Columbia to the north. Further, Shaw's team proposed the scabland flooding might have partially originated from an enormous subglacial reservoir that extended over much of central British Columbia, particularly including the Rocky Mountain Trench, which may have discharged by several paths, including one through Lake Missoula. This discharge, if occurring concurrently with the breach of the Lake Missoula ice dam, would have provided significantly larger volumes of water. Further, Shaw and team proposed that the rhythmic Touchet beds are the result of multiple pulses, or surges, within a single larger flood.
https://en.wikipedia.org/wiki?curid=441572
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The first recognised remains—OH 7, partial juvenile skull, hand, and foot bones dating to 1.75 million years ago (mya)—were discovered in Olduvai Gorge, Tanzania, in 1960 by Jonathan Leakey. However, the actual first remains—OH 4, a molar—were discovered by the senior assistant of Louis and Mary Leakey (Jonathan's parents), Heselon Mukiri, in 1959, but this was not realised at the time. By this time, the Leakeys had spent 29 years excavating in Olduvai Gorge for early hominin remains, but had instead recovered mainly other animal remains as well as the Oldowan stone-tool industry. The industry had been ascribed to "Paranthropus boisei" (at the time ""Zinjanthropus"") in 1959 as it was the first and only hominin recovered in the area, but this was revised upon OH 7's discovery. In 1964, Louis, South African palaeoanthropologist Phillip V. Tobias, and British primatologist John R. Napier officially assigned the remains into the genus "Homo" as, on recommendation by Australian anthropologist Raymond Dart, "H. habilis", the specific name meaning "able, handy, mentally skillful, vigorous" in Latin. The specimen's association with the Oldowan (then considered evidence of advanced cognitive ability) was also used as justification for classifying it into "Homo". OH 7 was designated the holotype specimen.
https://en.wikipedia.org/wiki?curid=14348
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Cyclin-dependent kinases (CDKs) are the families of protein kinases first discovered for their role in regulating the cell cycle. They are also involved in regulating transcription, mRNA processing, and the differentiation of nerve cells. They are present in all known eukaryotes, and their regulatory function in the cell cycle has been evolutionarily conserved. In fact, yeast cells can proliferate normally when their CDK gene has been replaced with the homologous human gene. CDKs are relatively small proteins, with molecular weights ranging from 34 to 40 kDa, and contain little more than the kinase domain. By definition, a CDK binds a regulatory protein called a cyclin. Without cyclin, CDK has little kinase activity; only the cyclin-CDK complex is an active kinase but its activity can be typically further modulated by phosphorylation and other binding proteins, like p27. CDKs phosphorylate their substrates on serines and threonines, so they are serine-threonine kinases. The consensus sequence for the phosphorylation site in the amino acid sequence of a CDK substrate is [S/T*]PX[K/R], where S/T* is the phosphorylated serine or threonine, P is proline, X is any amino acid, K is lysine, and R is arginine.
https://en.wikipedia.org/wiki?curid=619200
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, early diagnosis continued to be based on clinical suspicion, and treatment of the disease is indicated even before laboratory results confirm its presence. Because of the lag between the onset of infection and the appearance of antibodies in a blood test, serologic tests are merely confirmatory and retrospective. Weil-Felix agglutination reactions are not sensitive to the disease. Indirect fluorescence antibody assays that are specific to "R. typhi" antigens are the recommended route for detection and diagnosis: diagnostic titers are present in half of all cases within the first week of infection and in nearly all cases by day-15. The sharing of antigens by rickettsiae means routine serologic evaluation will not distinguish between murine typhus and epidemic typhus. Bacterial cultures are rarely performed because although they are highly accurate for diagnosis, the biohazard risk of generating them is often considered too high.
https://en.wikipedia.org/wiki?curid=1948256
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The upper arguments were valid up to the late 1990s. However, recent advances in numerical computing have shown a comeback of the force method, especially in the case of nonlinear systems. New frameworks have been developed that allow "exact" formulations irrespectively of the type or nature of the system nonlinearities. The main advantages of the flexibility method is that the result error is independent of the discretization of the model and that it is indeed a very fast method. For instance, the elastic-plastic solution of a continuous beam using the force method requires only 4 beam elements whereas a commercial "stiffness based" FEM code requires 500 elements in order to give results with the same accuracy. To conclude, one can say that in the case where the solution of the problem requires recursive evaluations of the force field like in the case of structural optimization or system identification, the efficiency of the flexibility method is indisputable.
https://en.wikipedia.org/wiki?curid=2820493
1,352,416
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The Curriculum and Assessment (Wales) Act 2021 was passed in 2021, which established new curriculum requirements for all learners aged 3 to 16 in maintained or funded non-maintained nursery education. The new curriculum is designed to include more emphasise on skills and experiences as well as knowledge. The curriculum groups education into six "Areas of Learning and Experience" with the intention of helping teachers draw links between subjects and teach topics in a broad way though traditional subjects will still be taught. Within a basic framework of goals and learning areas, it give schools freedom to develop their own curriculum to suit the needs of their pupils. Other changes include a greater emphasis on the history of Wales and ethnic minority groups which reports by Estyn in previous years suggested had often been poor along with the removal of parents right to take their children out of sex education classes.
https://en.wikipedia.org/wiki?curid=355736
1,232,832
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In the 19th century the Japanese craftsman Hisashige Tanaka, known as "Japan's Edison", created an array of extremely complex mechanical toys, some of which could serve tea, fire arrows drawn from a quiver, or even paint a Japanese "kanji" character. The landmark text "Karakuri Zui" ("Illustrated Machinery") was published in 1796. In 1898 Nikola Tesla demonstrated a prototype remote-controlled submarine at Madison Square Garden as "an automaton which left to itself, will act as though possessed of reason and without any wilful control from the outside." He defended his invention against critical reporters, arguing that his automata were not "wireless torpedo", but instead, "mechanical men, which will do the laborious work of the human race."
https://en.wikipedia.org/wiki?curid=13946920
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Online pay-per bid auction sites are a classic example of decision making under risk. Previous attempts at predicting consumer behavior have shown that utility theory does not sufficiently describe decision making under risk. When prospect theory was added to a previously existing model that was attempting to explain consumer behavior during auctions, out-of-sample predictions were shown to be more accurate than a corresponding expected utility model. Specifically, prospect theory was boiled down to certain elements: preference, loss aversion and probability weighting. These elements were then used to find a backward solution on 537,045 auctions. The greater accuracy may be explained by the new model having the ability to correct for two behavioral irrationalities: The sunk cost fallacy and average auctioneer revenues above current retail price. These findings would also imply that the using prospect theory as a descriptive theory of decision making under risk is also accurate in situations where risk arises through the interactions of different people.
https://en.wikipedia.org/wiki?curid=197284
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The Soyuz TMA-20 spacecraft landed safely upright at 02:27 UTC on May 24, 2011, after a mission lasting 159 days, seven hours and 17 minutes. Russian recovery forces moved to assist the Soyuz crew, along with U.S. and Russian flight surgeons. Kondratyev and Coleman appeared to be in good shape, smiling and chatting with support personnel and sharing a satellite phone to call family members back home. However, at a press conference held after the landing, Vyacheslav Rogozhkin, the deputy head of Federal Medical and Biological Agency, said that Naspoli was suffering from a minor health issue with his vestibular system.
https://en.wikipedia.org/wiki?curid=19485954
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In 2010, Lindsay Zanno revised the taxonomy of therizinosaurs in extensive detail. She found that many parts on therizinosaur holotype and referred specimens were lost or damaged, and sparse specimens with no overlapping elements were disadvantages when concluding the relationships of the members. Zanno accepted the referral of the specimen IGM 100/45 to "Therizinosaurus" since it matches multiple therizinosaurid traits, but decided not to include the specimen in her taxonomic analysis due to the lack of comparative forelimb remains. She also excluded the supposed ribs that were present on the holotype since they likely came from a different animal and not "Therizinosaurus". In 2019, Hartman and colleagues also performed a large phylogenetic analysis of Therizinosauria based on the characters provided by Zanno in her revision. They found similar results to Zanno regarding the family Therizinosauridae but this time with the inclusion of more taxa and specimens. The cladogram below shows the placement of "Therizinosaurus" within Therizinosauria according to Hartman and colleagues in 2019:
https://en.wikipedia.org/wiki?curid=851586
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As microprocessors are becoming faster, mainly because of the cores being added every few months, memory latency gap is becoming wider. Memory latency was few cycles in 1980 and it is reaching nowadays almost 1000 cycles. If the micro-processor has enough cores and hopefully they are not sending requests to the main memory at the same time, there will be partial aggregate hiding of memory latency. Some cores might be executing while others are waiting for memory response. This is not the best situation for multi-core processors. High performance computing experts are striving to keep all cores busy all the time. So, if each core is kept busy all the time, a complete utilization of the whole micro-processor is possible. Creating software based threads won't solve the problem for one obvious reason. Context switching threads to main memory is much expensive operation when compared to memory latency. For example, in Cell Broadband Engine context switching any of the core's thread takes 2000 micro-seconds in best cases. Some software techniques like double or multi-buffering may solve the memory latency problem. However, they can be used in regular algorithms, where the program knows where is the next data chunk to retrieve from memory; in this case it sends request to memory while it is processing previously request data. However, this technique won't work if it the program does not know the next data chunk to retrieve from memory. In other words, it won't work in combinatorial algorithms, such as tree spanning or random list ranking. In addition, multi-buffering assumes that memory latency is constant and can be hidden by statically. However, reality shows that memory latency changes from application to another. It depends on the overall load on microprocessor's shared resources, such as the rate of memory requests shared cores interconnections.
https://en.wikipedia.org/wiki?curid=21803100
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"Becoming Batman" addresses the scientific feasibility of a human being ever achieving peak of performance embodied by the Caped Crusader, and is essentially a guide for understanding how the human body works and responds to exercise. Zehr, a long-time reader of comic books, drew on the combined expertise gained in undergraduate (BPE, McMaster University) and graduate (MSc) training in kinesiology with his knowledge of neuroscience (PhD; University of Alberta) and his more than 25 years of personal experience in martial arts. A main point of Zehr's book is that despite all the technology and gadgetry, there is a real person inside the batsuit who needs extreme training. Zehr often points out that this training includes not just Batman's muscles but also his bones.
https://en.wikipedia.org/wiki?curid=24349764
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PrimeGrid is a volunteer computing project that searches for very large (up to world-record size) prime numbers whilst also aiming to solve long-standing mathematical conjectures. It uses the Berkeley Open Infrastructure for Network Computing (BOINC) platform. PrimeGrid offers a number of subprojects for prime-number sieving and discovery. Some of these are available through the BOINC client, others through the PRPNet client. Some of the work is manual, i.e. it requires manually starting work units and uploading results. Different subprojects may run on different operating systems, and may have executables for CPUs, GPUs, or both; while running the Lucas–Lehmer–Riesel test, CPUs with Advanced Vector Extensions and Fused Multiply-Add instruction sets will yield the fastest results for non-GPU accelerated workloads.
https://en.wikipedia.org/wiki?curid=3255603
1,793,376
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After the successful liberation of most Iranian areas captured by the Iraqis, in late spring 1982, the situation of the IRIAF changed completely. From an air arm that was offensive by nature, it was largely relegated to air defense and, relatively seldom, tasks of flying bombing attacks against targets of industrial and military significance inside Iraq. Simultaneously, the IRIAF had to learn to maintain and keep operational its large fleet of U.S.-built aircraft and helicopters without outside help, due to American sanctions. Reaching back on equipment purchased from the U.S.A. in the 1970s, the Iranians began establishing their own aerospace industry; their efforts in this remained largely unrecognized until recently.
https://en.wikipedia.org/wiki?curid=2163533
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Rabbany joined Hofstra in 1990 as an assistant professor of engineering to create the Hofstra Bioengineering Program, the first on Long Island. He spent 24 years teaching Bioengineering at Hofstra before serving as Acting Dean in 2014. As of June 7, 2016, he continues to serve as the dean of Hofstra's Fred DeMatteis School of Engineering and Applied Science. Rabbany has received funding from numerous organizations, including the National Cancer Institute, National Institutes of Health, and the Office of Naval Research. He has more than 70 publications and holds patents in the areas of cardiovascular dynamics, biosensors, vascular biology, tissue engineering, and regenerative medicine. He holds the Nerken Distinguished Professorship in Engineering and serves as the Founding Director of the Bioengineering Program at Hofstra.
https://en.wikipedia.org/wiki?curid=66176374
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Further work on improving the technique and development of safer more effective sclerosants continued through the 1940s and 1950s. Of particular importance was the development of sodium tetradecyl sulfate (STS) in 1946, a product still widely used to this day. George Fegan in the 1960s reported treating over 13,000 patients with sclerotherapy, significantly advancing the technique by focussing on fibrosis of the vein rather than thrombosis, concentrating on controlling significant points of reflux and emphasizing the importance of compression of the treated leg. The procedure became medically accepted in mainland Europe during that time. However, it was poorly understood or accepted in England or the United States, a situation that continues to this day amongst some sections of the medical community.
https://en.wikipedia.org/wiki?curid=2187254
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In statistical field, the first use of the term “computer” comes in an article in the "Journal of the American Statistical Association" archives by Robert P. Porter in 1891. The article discusses about the use of Hermann Hollerith’s machine in the 11th Census of the United States. Hermann Hollerith’s machine, also called tabulating machine, was an electromechanical machine designed to assist in summarizing information stored on punched cards. It was invented by Herman Hollerith (February 29, 1860 – November 17, 1929), an American businessman, inventor, and statistician. His invention of the punched card tabulating machine was patented in 1884, and later was used in the 1890 Census of the United States. The advantages of the technology were immediately apparent. the 1880 Census, with about 50 million people, and it took over 7 years to tabulate. While in the 1890 Census, with over 62 million people, it took less than a year. This marks the beginning of the era of mechanized computational statistics and semiautomatic data processing systems.
https://en.wikipedia.org/wiki?curid=15832717
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In 1991, the use of gillnets in nearshore Californian waters was banned by a voter initiative (Proposition 132); the restricted area included much of the Pacific angelshark's habitat and reduced fishing pressure on the species. As a result, Pacific angelshark landings dropped further to dressed in 1994, when the central Californian halibut/angel shark fishery was closed completely, and have remained low since. The decline of the Californian fishery led to the industry shifting to Mexico, where gillnet "pangas" (artisanal fishing vessels) targeting this species now meet most of the angel shark demand in California. The International Union for Conservation of Nature (IUCN) has assessed this species as Near Threatened; Pacific angelshark numbers off California appear to be increasing and demographic modeling suggests the stock is healthy. However, the impact of the intense, unregulated Mexican fishery on the global population is yet undetermined. There is continuing interest in California for a resumption of the commercial fishery, though conservation concerns have thus far taken precedence.
https://en.wikipedia.org/wiki?curid=7332664
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Another way of preventing this problem is through materials selection. This will build an inherent resistance to this process and reduce the need of post processing or constant monitoring for failure. Certain metals or alloys are highly susceptible to this issue, so choosing a material that is minimally affected while retaining the desired properties would also provide an optimal solution. Much research has been done to catalog the compatibility of certain metals with hydrogen. Tests such as ASTM F1624 can also be used to rank alloys and coatings during materials selection to ensure (for instance) that the threshold of cracking is below the threshold for hydrogen-assisted stress corrosion cracking. Similar tests can also be used during quality control to more effectively qualify materials being produced in a rapid and comparable manner.
https://en.wikipedia.org/wiki?curid=1063470
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DIPs were the mainstream of the microelectronics industry in the 1970s and 1980s. Their use has declined in the first decade of the 21st century due to the emerging new surface-mount technology (SMT) packages such as plastic leaded chip carrier (PLCC) and small-outline integrated circuit (SOIC), though DIPs continued in extensive use through the 1990s, and still continue to be used substantially as the year 2011 passes. Because some modern chips are available only in surface-mount package types, a number of companies sell various prototyping adapters to allow those surface-mount devices (SMD) to be used like DIP devices with through-hole breadboards and soldered prototyping boards (such as stripboard and perfboard). (SMT can pose quite a problem, at least an inconvenience, for prototyping in general; most of the characteristics of SMT that are advantages for mass production are difficulties for prototyping.)
https://en.wikipedia.org/wiki?curid=41073
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Every single surface of a modern Formula One car, from the shape of the suspension links to that of the driver's helmet – has its aerodynamic effects considered. Disrupted air, where the flow 'separates' from the body, creates turbulence which creates drag – which slows the car down. Almost as much effort has been spent reducing drag as increasing downforce – from the vertical end-plates fitted to wings to prevent vortices forming to the diffuser plates mounted low at the back, which helps to re-equalise pressure of the faster-flowing air that has passed under the car and would otherwise create a low-pressure 'balloon' dragging at the back. Despite this, designers can't make their cars too 'slippery', as a good supply of airflow has to be ensured to help dissipate the vast amounts of heat produced by the engine and brakes.
https://en.wikipedia.org/wiki?curid=645083
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JME is believed to be most often caused by a heterogeneous and complex interaction of multiple genes rather than an unidentified single genetic cause. Thus far seven genes and over 20 chromosomal loci have been implicated in the pathogenesis of JME. A minority of cases are caused by single genes and are inherited in an autosomal dominant fashion. The majority of the genes which have been associated with JME encode for ion channel subunits. More recently, variants in intestinal cell kinase which is encoded by a gene on chromosome 6p12 was found to be associated with JME. This gene is involved in mitosis, cell-cycle exit and radial neuroblast migration as well as apoptosis. Another gene that is associated with JME called EFHC1 has similar functions. These findings may explain subtle structural and functional brain abnormalities that are seen in patients with JME.
https://en.wikipedia.org/wiki?curid=7114421
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By the 18th century, regiments of foot (infantry) in the British, French, Prussian and other armies included pioneer detachments. In peacetime these specialists constituted the regimental tradesmen, constructing and repairing buildings, transport wagons, etc. On active service they moved at the head of marching columns with axes, shovels, and pickaxes, clearing obstacles or building bridges to enable the main body of the regiment to move through difficult terrain. The modern Royal Welch Fusiliers and French Foreign Legion still maintain pioneer sections who march at the front of ceremonial parades, carrying chromium-plated tools intended for show only. Other historic distinctions include long work aprons and the right to wear beards. In West Africa, the Ashanti army was accompanied to war by carpenters who were responsible for constructing shelters and blacksmiths who repaired weapons. By the 18th century, sappers were deployed in the Dahomeyan army during assaults against fortifications.
https://en.wikipedia.org/wiki?curid=100034
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The skull of "Euoplocephalus" can be distinguished from most other ankylosaurids by several anatomical details, including: the pattern of bony sculpturing in the region in front of the eyes; the form of the palpebral bones (small bones over the eyes), which may have served as bony eyelids; the shallowness of the nasal vestibule at the entrance of the nasal cavity; the medial curve of the tooth rows in the upper jaw; and the teeth, which are relatively small, lacking true cingula, and having variable fluting of the denticles. However, these traits are shared with a number of closely related forms, some of which in the past have been included in the genus. Combining such forms, Walter Coombs and Teresa Maryańska in 1990 stated that "Euoplocephalus" could be distinguished based on four traits. The premaxillae, the front snout bones, are not covered by dermal ossifications. The external bony nostrils are slit-like, face to the front and are each divided by a vertical bone sheet or septum. The beak has a width equal to or greater than the distance between the rear maxillary, upper cheek, teeth rows. The foot has three digits, metatarsals with toes.
https://en.wikipedia.org/wiki?curid=1230089
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Meningitis is potentially life-threatening and has a high mortality rate if untreated; delay in treatment has been associated with a poorer outcome. Thus, treatment with wide-spectrum antibiotics should not be delayed while confirmatory tests are being conducted. If meningococcal disease is suspected in primary care, guidelines recommend that benzylpenicillin be administered before transfer to hospital. Intravenous fluids should be administered if hypotension (low blood pressure) or shock are present. It is not clear whether intravenous fluid should be given routinely or whether this should be restricted. Given that meningitis can cause a number of early severe complications, regular medical review is recommended to identify these complications early and to admit the person to an intensive care unit if deemed necessary.
https://en.wikipedia.org/wiki?curid=21009963
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Anandkumar is committed to improving diversity in the technology sector. She launched a petition to Timothy A. Gonsalves to try and convince him at the Ministry of Human Resource Development to end gender segregation in the admissions process at the Indian Institute of Technology Madras. The petition calls for campus-wide systems to monitor sexual harassment, improved campus security and increased engagement with alumni. She has spoken openly about her own experiences of sexual harassment on social media and called for Intel to stop using female acrobats as entertainment at their conference parties. She was one of several campaigners to rename the Conference on Neural Information Processing Systems 'NIPS' as NeurIPS. In 2018 she was awarded a "New York Times" Good Tech Award.
https://en.wikipedia.org/wiki?curid=59602729
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In December 1971, during the Indo-Pakistani War of 1971, US President Richard Nixon sent a carrier battle group named Task Force 74, led by the nuclear-powered into the international waters of the Bay of Bengal in a show of force. Task Force 74 remained in international waters, where it was legally entitled to be. The records of Nixon-Kissinger communications show no contingency nor any plan under which "Enterprise" would enter Indian or Pakistani waters, or otherwise intervene in the conflict. In response, the Soviet Union sent a submarine armed with nuclear missiles from Vladivostok to trail the US task force. The event demonstrated the significance of nuclear weapons and ballistic missile submarines to then Prime Minister Indira Gandhi. Following the 1974 Smiling Buddha nuclear test, the Director of Marine Engineering (DME) at Naval Headquarters initiated a technical feasibility study for an indigenous nuclear propulsion system (Project 932).
https://en.wikipedia.org/wiki?curid=6167989
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Currently there are a few challenges when using SNNs that researchers are actively working on. The first challenge concerns the nondifferentiability of the spiking nonlinearity. The expressions for both the forward- and backward-learning methods contain the derivative of the neural activation function which is non-differentiable because neuron's output is either 1 when it spikes, and 0 otherwise. This all-or-nothing behavior of the binary spiking nonlinearity stops gradients from “flowing” and makes LIF neurons unsuitable for gradient-based optimization. The second challenge concerns the implementation of the optimization algorithm itself. Standard BP can be expensive in terms of computation, memory, and communication and may be poorly suited to the constraints dictated by the hardware that implements it (e.g., a computer, brain, or neuromorphic device). Regarding the first challenge there are several approached in order to overcome it. A few of them are:
https://en.wikipedia.org/wiki?curid=10159567
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Aligned multi-walled carbon nanotube (MWNT) growth has been used in CNT film synthesis through the domino effect. In this process, "forests" of MWNTs are pushed flat in a single direction, compressing their vertical orientation into the horizontal plane, which results in the formation of high-purity buckypaper with no further purification or treatment required. By comparison, when a buckypaper sample was formed from the 1 ton compression of chemical vapor deposition (CVD) generated MWNT powder, any application of a solvent led to the immediate swelling of the film till it reverted into particulate matter. It appears that for the CNT powder used, compression alone was insufficient to generate robust buckypaper and highlights that the aligned growth methodology generates "in situ" tube-tube interactions not found in CVD CNT powder and are preserved through to the domino pushing formation of buckypaper.
https://en.wikipedia.org/wiki?curid=3657723
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She was the Principal Investigator (PI) on a series of SpaceHab/Biorack experiments, which examined the regulation of osteoblast (bone cell) growth. These experiments flew on STS-76, in March 1996, STS-81 in January 1997, and STS-84 in May 1997, and studied the root causes of osteoporosis that occurs in astronauts during spaceflight. One experiment resulted in observations of changes in anabolic signal transduction in microgravity. A later collaborator was Dr. Augusto Cogoli of Zürich, Switzerland; one experiment with Dr. Cogoli was lost in the Space Shuttle "Columbia" disaster, and another experiment using technology from Affymetrix and reverse transcription polymerase chain reaction (RT-PCR) examined changes in T-cell gene induction in spaceflight on a joint NASA/ESA International Space Station mission that launched on the Soyuz TMA-9 in 2006.
https://en.wikipedia.org/wiki?curid=604897
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It has proven rather more difficult to prove the "existence" of non-Abelian quantum field theory in a rigorous sense than to obtain accurate predictions using semi-heuristic calculation schemes. This is because analyzing a quantum field theory requires two mathematically interlocked perspectives: a Lagrangian system based on the action functional, composed of "fields" with distinct values at each point in spacetime and local operators which act on them, and a Hamiltonian system in the Dirac picture, composed of "states" which characterize the entire system at a given time and field operators which act on them. What makes this so difficult in a gauge theory is that the objects of the theory are not really local fields on spacetime; they are right-invariant local fields on the principal gauge bundle, and different local sections through a portion of the gauge bundle, related by "passive" transformations, produce different Dirac pictures.
https://en.wikipedia.org/wiki?curid=6769980
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Elfriede died in October 1970, and Segrè married Rosa Mines in February 1972. He was elected to the American Academy of Arts and Sciences in 1973. That year he reached the University of California's compulsory retirement age. He continued teaching the history of physics. In 1974 he returned to the University of Rome as a professor, but served only a year before reaching the mandatory retirement age. Segrè died from a heart attack at the age of 84 while out walking near his home in Lafayette. Active as a photographer, Segrè took many photos documenting events and people in the history of modern science. After his death Rosa donated many of his photographs to the American Institute of Physics, which named its photographic archive of physics history in his honor. The collection was bolstered by a subsequent bequest from Rosa after her death from an accident in Tivoli in 1997.
https://en.wikipedia.org/wiki?curid=376458
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Alignments are commonly represented both graphically and in text format. In almost all sequence alignment representations, sequences are written in rows arranged so that aligned residues appear in successive columns. In text formats, aligned columns containing identical or similar characters are indicated with a system of conservation symbols. As in the image above, an asterisk or pipe symbol is used to show identity between two columns; other less common symbols include a colon for conservative substitutions and a period for semiconservative substitutions. Many sequence visualization programs also use color to display information about the properties of the individual sequence elements; in DNA and RNA sequences, this equates to assigning each nucleotide its own color. In protein alignments, such as the one in the image above, color is often used to indicate amino acid properties to aid in judging the conservation of a given amino acid substitution. For multiple sequences the last row in each column is often the consensus sequence determined by the alignment; the consensus sequence is also often represented in graphical format with a sequence logo in which the size of each nucleotide or amino acid letter corresponds to its degree of conservation.
https://en.wikipedia.org/wiki?curid=149289
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The work on "Tennessee" lasted nearly a year, and saw the ship radically altered. New anti-torpedo bulges were installed and her internal compartmentalization was improved to strengthen her resistance to underwater damage. Her superstructure was completely revised, with the old heavily armored conning tower being removed and a smaller tower was erected in its place to reduce interference with the anti-aircraft guns' fields of fire. The new tower had been removed from one of the s that had recently been rebuilt. The foremast was replaced with a tower mast that housed the bridge and the main battery director, and her second funnel was removed, with those boilers being trunked into an enlarged forward funnel. Horizontal protection was considerably strengthened to improve her resistance to air attack; 3 inches of special treatment steel (STS) was added to the deck over the magazines and of STS was added elsewhere.
https://en.wikipedia.org/wiki?curid=196975
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Because the availability of fissile material has long been considered the principal obstacle to, and "pacing element" for, a country's nuclear weapons development effort, it was declared a major emphasis of U.S. policy in 2004 to prevent the further spread of uranium enrichment and plutonium reprocessing (a.k.a. "ENR") technology. Countries possessing ENR capabilities, it is feared, have what is in effect the option of using this capability to produce fissile material for weapons use on demand, thus giving them what has been termed a "virtual" nuclear weapons program. The degree to which NPT members have a "right" to ENR technology notwithstanding its potentially grave proliferation implications, therefore, is at the cutting edge of policy and legal debates surrounding the meaning of Article IV and its relation to Articles I, II, and III of the treaty.
https://en.wikipedia.org/wiki?curid=22107
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When he returned to Britain with Christina in about 1892, Davidson produced his first major work: "Geographical pathology: an inquiry into the geographical distribution of infective and climatic diseases", covering Europe and large parts of Asia. In 1893, he produced another major text: "Hygiene and diseases of warm climates". Davidson edited the book and was the sole author of two chapters on two little-understood diseases that were claiming thousands of lives each year in the tropics, malaria and dengue fever. However, most chapters were contributed by other senior medical figures in Europe, Africa and the USA. A review in the "British Medical Journal" criticised aspects of the book, but said it was still the best work on the subject so far published in any language, and should be “the daily companion of every medical man in warm countries”.
https://en.wikipedia.org/wiki?curid=65131998
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As the radioisotope undergoes positron emission decay (also known as positive beta decay), it emits a positron, an antiparticle of the electron with opposite charge. The emitted positron travels in tissue for a short distance (typically less than 1 mm, but dependent on the isotope), during which time it loses kinetic energy, until it decelerates to a point where it can interact with an electron. The encounter annihilates both electron and positron, producing a pair of annihilation (gamma) photons moving in approximately opposite directions. These are detected when they reach a scintillator in the scanning device, creating a burst of light which is detected by photomultiplier tubes or silicon avalanche photodiodes (Si APD). The technique depends on simultaneous or coincident detection of the pair of photons moving in approximately opposite directions (they would be exactly opposite in their center of mass frame, but the scanner has no way to know this, and so has a built-in slight direction-error tolerance). Photons that do not arrive in temporal "pairs" (i.e. within a timing-window of a few nanoseconds) are ignored.
https://en.wikipedia.org/wiki?curid=24032
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Physicist David Deutsch shows in a 1991 paper that quantum computation with a negative delay—backwards time travel—could solve NP problems in polynomial time, and Scott Aaronson later extended this result to show that the model could also be used to solve PSPACE problems in polynomial time. Deutsch shows that quantum computation with a negative delay produces only self-consistent solutions, and the chronology-violating region imposes constraints that are not apparent through classical reasoning. Researchers published in 2014 a simulation validating Deutsch's model with photons. However, it was shown in an article by Tolksdorf and Verch that Deutsch's CTC (closed timelike curve, or a causal loop) fixed point condition can be fulfilled to arbitrary precision in any quantum system described according to relativistic quantum field theory on spacetimes where CTCs are excluded, casting doubts on whether Deutsch's condition is really characteristic of quantum processes mimicking CTCs in the sense of general relativity.
https://en.wikipedia.org/wiki?curid=48402268
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Albert Feuerwerker emphasized that these industrial projects were remarkable in the enormous diversity of fields they embarked in, involved in coal and iron mining, steel production, textile manufacture, telegraphy, steamships, railroads and modern banking. In addition, they were profitable enterprises. These, he regards, are especially remarkable in light of the fact that these industrial projects were entirely groundbreaking for China, and yet simultaneously impeded by fierce foreign competition due to the imbalanced trade terms of the unequal treaties, capital and skilled labour shortage, and governmental acquisitiveness. Government interference in these industrial projects aided local comprador merchants to survive and prosper in the face of overwhelming foreign superiority. Feuerwerker remarks that Western powers were more aggressive in establishing factories in China as compared to Japan, using cheap local workers to profit off the Chinese market, siphoning off much of the benefits of industrialization.
https://en.wikipedia.org/wiki?curid=407942
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Epicurus was born in the Athenian settlement on the Aegean island of Samos in February 341 BC. His parents, Neocles and Chaerestrate, were both Athenian-born, and his father was an Athenian citizen. Epicurus grew up during the final years of the Greek Classical Period. Plato had died seven years before Epicurus was born and Epicurus was seven years old when Alexander the Great crossed the Hellespont into Persia. As a child, Epicurus would have received a typical ancient Greek education. As such, according to Norman Wentworth DeWitt, "it is inconceivable that he would have escaped the Platonic training in geometry, dialectic, and rhetoric." Epicurus is known to have studied under the instruction of a Samian Platonist named Pamphilus, probably for about four years. His "Letter of Menoeceus" and surviving fragments of his other writings strongly suggest that he had extensive training in rhetoric. After the death of Alexander the Great, Perdiccas expelled the Athenian settlers on Samos to Colophon, on the coast of what is now Turkey. After the completion of his military service, Epicurus joined his family there. He studied under Nausiphanes, who followed the teachings of Democritus, and later those of Pyrrho, whose way of life Epicurus greatly admired.
https://en.wikipedia.org/wiki?curid=10073
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The present Upstate Medical University College of Medicine traces its ancestry to Geneva Medical College founded on September 15, 1834, as part of Geneva College, today known as Hobart and William Smith Colleges. The medical school, located in Geneva, New York, was the brainchild of Edward Cutbush, MD, who became its first dean. GMC held its first classes in February 1835, and became the first college to grant a full M.D. to a woman, Elizabeth Blackwell, in 1849.Among the early luminaries at GMC were Prof. of Surgery Frank Hastings Hamilton, pioneer in orthopedics, military surgery, and military hygiene; Stephen Smith, briefly a GMC student in 1847–1848, later an innovative sanitarian and surgeon in New York City; Lecturer in the Theory and Practice of Medicine Austin Flint, developer of modern methods of auscultation, cofounder (with Hamilton and several other GMC faculty) of the University of Buffalo College of Medicine, and eventually President of the American Medical Association (AMA); and Prof. of Anatomy and Physiology Willard Parker, who became the premier surgeon at Bellevue.
https://en.wikipedia.org/wiki?curid=9249400
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Lanthanum has a low to moderate level of toxicity and should be handled with care. The injection of lanthanum solutions produces hyperglycemia, low blood pressure, degeneration of the spleen and hepatic alterations. The application in carbon arc light led to the exposure of people to rare earth element oxides and fluorides, which sometimes led to pneumoconiosis. As the La ion is similar in size to the Ca ion, it is sometimes used as an easily traced substitute for the latter in medical studies. Lanthanum, like the other lanthanides, is known to affect human metabolism, lowering cholesterol levels, blood pressure, appetite, and risk of blood coagulation. When injected into the brain, it acts as a painkiller, similarly to morphine and other opiates, though the mechanism behind this is still unknown.
https://en.wikipedia.org/wiki?curid=17744
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According to "Nature Medicine", his first experiments at Harvard required an especially large research grant, that enabled exposure of non-human primate rhesus monkeys to so much radioactive thymidine that manufacturers had to retool their entire production system to provide it. Rakic injected the monkeys' fetuses with radioactive thymidine at a particular time after conception. Only replicating cells took up the radioactive label, which enabled Rakic to trace the lineages of brain cells as they were created. He and his team then sliced the brain of each monkey into 7,000 sections, which were stored in Rakic's collection for the benefit of future researchers. Because he used a radiolabel that decays slowly, the slides should be useful for years, and have so far led to more than 24 papers. This material has also provided evidence that contributed one of the significant tenets of Neuroscience, that neurons of the cerebral cortex last for the entire lifespan and are irreplaceable.
https://en.wikipedia.org/wiki?curid=7647010
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The School is based in three buildings within the main campus. 1. The School of Pharmacy building is the main teaching building and houses a teaching pharmacy, a complex for Pharmacy Leadership training, teaching laboratories and the Division of Pharmacy Practice and Policy. 2. The Biodiscovery Institute is a multidisciplinary research centre with several groups based there from the School from the Divisions of Biomolecular Science and Medicinal Chemistry and Regenerative Medicine and Cellular Therapies. School staff together with over 300 scientists from across seven different scientific disciplines work here to tackle key health priorities in drug discovery, cancer research, stem cell science, bacteriology and regenerative medicine. 3. The Boots Science Building is another research building, housing the Divisions of Advanced Materials and Healthcare Technologies and Molecular Therapeutics and Formulation. The EPSRC Advanced Therapeutics and Nanomedicines Doctoral Training Centre is housed in this building, and works in collaboration with UCL and a number of leading pharmaceutical industry partners to deliver PhD training in collaborative, fundamental, multidisciplinary and pharmaceutical focused research.
https://en.wikipedia.org/wiki?curid=25268423
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The Intercollegiate Biomathematics Alliance (IBA) is a syndicate of organizations focused on connecting both academic and non-academic institutions to promote the study of biomathematics, ecology, and other related fields. Biomathematics is a scientific area connecting biology, ecology, mathematics, and computer science. Founded in 2014 by Executive director Olcay Akman of Illinois State University, the Intercollegiate Biomathematics Alliance helps organizations to work together and share resources among one another that are not regularly available at all institutions. The IBA is still young and typically attracts smaller colleges around the United States who tend to benefit more from being part of a consortium. However, in recent years, universities such as Arizona State University have joined and the IBA continues to maintain connections with larger research groups such as the Mathematical Bioscience Institute (MBI) and the National Institute for Mathematical and Biological Synthesis (NIMBioS).
https://en.wikipedia.org/wiki?curid=63192046
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"E. coli" is frequently used as a model organism in microbiology studies. Cultivated strains (e.g. "E. coli" K12) are well-adapted to the laboratory environment, and, unlike wild-type strains, have lost their ability to thrive in the intestine. Many laboratory strains lose their ability to form biofilms. These features protect wild-type strains from antibodies and other chemical attacks, but require a large expenditure of energy and material resources. "E. coli" is often used as a representative microorganism in the research of novel water treatment and sterilisation methods, including photocatalysis. By standard plate count methods, following sequential dilutions, and growth on agar gel plates, the concentration of viable organisms or CFUs (Colony Forming Units), in a known volume of treated water can be evaluated, allowing the comparative assessment of materials performance.
https://en.wikipedia.org/wiki?curid=40114
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DNA barcoding allows the resolution of taxa from higher (e.g. family) to lower (e.g. species) taxonomic levels, that are otherwise too difficult to identify using traditional morphological methods, like e.g. identification via microscopy. For example, Chironomidae (the non-biting midge) are widely distributed in both terrestrial and freshwater ecosystems. Their richness and abundance make them important for ecological processes and networks, and they are one of many invertebrate groups used in biomonitoring. Invertebrate samples can contain as many as 100 species of chironomids which often make up as much as 50% of a sample. Despite this, they are usually not identified below the family level because of the taxonomic expertise and time required. This may result in different chironomid species with different ecological preferences grouped together, resulting in inaccurate assessment of water quality.
https://en.wikipedia.org/wiki?curid=30872162
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Some examples of sustainable building materials include recycled denim or blown-in fiber glass insulation, sustainably harvested wood, Trass, Linoleum, sheep wool, hempcrete, roman concrete, panels made from paper flakes, baked earth, rammed earth, clay, vermiculite, flax linen, sisal, seagrass, expanded clay grains, coconut, wood fiber plates, calcium sandstone, locally obtained stone and rock, and bamboo, which is one of the strongest and fastest growing woody plants, and non-toxic low-VOC glues and paints. Bamboo flooring can be useful in ecological spaces since they help reduce pollution particles in the air. Vegetative cover or shield over building envelopes also helps in the same. Paper which is fabricated or manufactured out of forest wood is supposedly hundred percent recyclable, thus it regenerates and saves almost all the forest wood that it takes during its manufacturing process. There is an underutilized potential for systematically storing carbon in the built environment.
https://en.wikipedia.org/wiki?curid=2704720
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Although there are varying forms of HIIT-style workouts which may involve exercises associated with both cardiovascular activity and also resistance training, HIIT's crucial features of maximal effort, duration, and short rest periods (thereby triggering the anaerobic pathways of energy production) materially differentiate it from being considered a form of cardiovascular exercise. Though there is no universal HIIT session duration, a HIIT workout typically lasts under 30 minutes in total as it uses the anaerobic energy systems which are typically used for short, sharp bursts. The times vary, based on a participant's current fitness level. Traditional HIIT initially had been designed to be no longer than 20 seconds on with no more than 10 seconds off; however, intervals of exercise effort tend to range from 20 to 45 seconds but no longer than 75 seconds, at which point the aerobic system would then kick in.
https://en.wikipedia.org/wiki?curid=1409767
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Despite the original intention to incorporate as few changes as necessary to the basic design, the GAZ-84 works had to make some 1,293 engineering change orders to the original Douglas drawings, involving part design, dimensions, materials and processes, most as a part of metrication of the design from U.S. customary units to suit Soviet standards, no small task for Vladimir Myasishchev to accomplish. The well-established Shvetsov OKB-19 design bureau, responsible for the great bulk of the Soviets' air-cooled radial aviation powerplant designs of the 1930-40s, used their Shvetsov ASh-62IR radial engines, a Soviet development of the nine-cylinder Wright R-1820 "Cyclone 9", to power the PS-84. The same Wright Aeronautical "Cyclone 9" radial also powered the earliest Douglas DST "Sleeper Transport" versions, and initial 21-passenger versions, of the original American DC-3 airliner.
https://en.wikipedia.org/wiki?curid=3979727
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Whitaker is a member of the advisory committee and the editorial board of the Bombay Natural History Society, correspondent of The Society for the Study of Amphibians and Reptiles, USA, advisor of Irula Tribal Women's’ Welfare Society, Afforestation Project, member of the Centre for Science and Education, New Delhi, and of the Centre for Environment Education, Ahmedabad. He co-founded the Tamil Nadu Society for Social Forestry Research and the Palni Hills Conservation Council. He is chief technical advisor of Irula Snake Catchers’ Industrial Cooperative Society and convenor of the Indian National Trust for Art and Cultural Heritage, Andaman and Nicobar Islands Chapter. He is honorary consultant of International Union for the Conservation of Nature and Natural Resources/Species Survival Commission (IUCN/SSC), vice chairman (Western Asia), IUCN/SSC Crocodile Specialist Group, member of IUCN/SSC Reptile and Amphibian Group and of IUCN/SSC Sea Turtle Specialist Group.
https://en.wikipedia.org/wiki?curid=4181224
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For tanks and artillery pieces, the extended range, full bore (ERFB) concept developed by Gerald Bull for the GC-45 howitzer reverses the normal rifling idea by using a projectile with small nubs that ride in the grooves, instead of having a slightly oversized driving band which is forced into the grooves. This imparts spin but eliminates the friction required to deform the driving band into the grooves; a soft and low-friction silicon rubber ring is used to achieve a seal between the projectile and the walls of the tube. Guns capable of firing these projectiles have achieved significant increases in muzzle velocity and range. Unlike a shell narrower than the gun's bore with a sabot, ERFB shells use the full bore, permitting a larger payload. Examples include the South African G5 and the German PzH 2000. ERFB may be combined with base bleed.
https://en.wikipedia.org/wiki?curid=94139
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Established in 1993, Syngene International Limited is a contract research and development organization (CDMO). In the CDMO space, Syngene primarily focuses on research innovation and manufacturing services for their clients. The company has four divisions: drug discovery services, dedicated research centres, development devices and manufacturing. Syngene works with eight of the top 10 global pharma firms and, the company's clients include Amgen, Zoetis, GlaxoSmithKline and Bristol Myers Squibb. Syngene has been expanding its operations. Since 2020, he company has opened an R&D centre in Hyderabad, is building an API manufacturing facility in Mangalore, which is scheduled to be commissioned in 2022, and has expanded their R&D facility in Bangalore. Syngene also provides biologics CDMO services. In July 2022, Syngene signed a 10-year agreement with Zoetis to manufacture the drug substance for Librela (bedinvetmab), a first-in-class monoclonal antibody used for treating osteoarthritis in dogs. SynVent is Syngene's drug discovery and development platform for both small and large molecules. In September 2022, Biocon divested 5.4% of its shares in Syngene International.
https://en.wikipedia.org/wiki?curid=1899802
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Investigations show that in all cases gas atomisation of molten metal yields a broad range of droplet diameters, typically in the range 10-600 μm diameter, with a mean diameter of ~100 μm. Droplet diameter governs the dynamic behaviour of the droplet in flight which in turn determines the time available for in-flight cooling which is critical in controlling the resulting billet microstructure. At a flight distance of 300–400 mm, predictions show droplet velocities of 40-90 ms for droplet diameters in the range 20-150 μm respectively, compared to measured velocities of ~100 ms, and at distances of up to 180 mm from the atomiser, droplets were still being accelerated by the gas. Droplets cool in-flight predominantly by convection and radiation, and can experience undercooling of up to prior to nucleation. Models and experimental measurements show that small droplets (<50 μm) very rapidly become fully solid prior to deposition, 50-200 μm droplets will be typically semi-solid and droplets of diameters >200 μm will be liquid at deposition. The range of droplet dynamic and thermal histories result in a billet top surface of 0.3 to 0.6 solid fraction. Not all material that impacts the surface is incorporated into the billet: some solid droplets will bounce or splash-off the billet top surface or be directed out of the deposition region by turbulent gas movement in the chamber. The proportion of droplets that impact the surface compared to the proportion that are incorporated into the billet has been termed the "sticking efficiency": dependent on the geometric sticking which is a function of the spray angle relative to substrate and the thermal sticking efficiency dependent on spray and billet solid/liquid fraction.
https://en.wikipedia.org/wiki?curid=4927657
1,605,316
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There are currently several techniques to model the otolithic membrane that all serve as a way for researchers, scientists and health professionals to illustrate and understand the membrane's structure and function. One of these techniques is referred to as a finite element method which divides the membrane into triangles and a computer is used to determine the linear combination of the functions that represent the displacement which solves a complex system of equations. The finite element method was initially developed for use in fields such as mechanical engineering and civil engineering to solve elliptic partial differential equations (PDEs) and has had enormous success. The finite element method opposes another technique for solving PDEs, the finite difference method and has been shown to be more effective in modeling the otolithic membrane by several studies, but has also been opposed by other researchers. Similar models have even been developed to take into account varying acceleration of gravity to model the effect of the otolithic membrane in environments with changing gravitational effects such as space, the moon and other planets.
https://en.wikipedia.org/wiki?curid=5109550
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The opera is a satire on the aesthetic movement of the 1870s and '80s in England, part of the 19th-century European movement that emphasised aesthetic values over moral or social themes in literature, fine art, the decorative arts, and interior design. Called "Art for Art's Sake", the movement valued its ideals of beauty above any pragmatic concerns. Although the output of poets, painters and designers was prolific, some argued that the movement's art, poetry and fashion was empty and self-indulgent. That the movement was so popular and also so easy to ridicule as a meaningless fad helped make "Patience" a big hit. The same factors made a hit out of "The Colonel", a play by F. C. Burnand based partly on the satiric cartoons of George du Maurier in "Punch" magazine. "The Colonel" beat "Patience" to the stage by several weeks, but "Patience" outran Burnand's play. According to Burnand's 1904 memoir, Sullivan's friend the composer Frederic Clay leaked to Burnand the information that Gilbert and Sullivan were working on an "æsthetic subject", and so Burnand raced to produce "The Colonel" before "Patience" opened. Modern productions of "Patience" have sometimes updated the setting of the opera to an analogous era such as the hippie 1960s, making a flower-child poet the rival of a beat poet.
https://en.wikipedia.org/wiki?curid=1924767
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Action potentials, which are necessary for neural activity, evolved in single-celled eukaryotes. These use calcium rather than sodium action potentials, but the mechanism was probably adapted into neural electrical signaling in multicellular animals. In some colonial eukaryotes, such as "Obelia," electrical signals propagate not only through neural nets, but also through epithelial cells in the shared digestive system of the colony. Several non-metazoan phyla, including choanoflagellates, filasterea, and mesomycetozoea, have been found to have synaptic protein homologs, including secretory SNAREs, Shank, and Homer. In choanoflagellates and mesomycetozoea, these proteins are upregulated during colonial phases, suggesting the importance of these proto-synaptic proteins for cell to cell communication. The history of ideas on how neurons and the first nervous systems emerged in evolution has been discussed in a 2015 book by Michel Antcil. In 2022 two proteins SMIM20 and NUCB2, that are precursors of the neuropeptides phoenixin and nesfatin-1 respectively have been found to have deep homology across all lineages that preceded creatures with central nervous systems, bilaterians, cnidarians, ctenophores, and sponges as well as in choanoflagellates.
https://en.wikipedia.org/wiki?curid=33644895
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It is possible that an alleged Roman embassy from "Daqin" that arrived in Eastern Han China in 166 via a Roman maritime route into the South China Sea, landing at Jiaozhou (northern Vietnam) and bearing gifts for the Emperor Huan of Han (), was sent by Marcus Aurelius, or his predecessor Antoninus Pius (the confusion stems from the transliteration of their names as "Andun", Chinese: 安敦). The embassy was perhaps simply a group of Roman merchants, not official diplomats. Other Roman embassies of the 3rd century supposedly visited China by sailing along the same maritime route. These were preceded by the appearance of Roman glasswares in Chinese tombs, the earliest piece found at Guangzhou (along the coast of the South China Sea) and dating to the 1st century BC. The earliest Roman coins found in China date to the 4th century AD and appear to have come by way of the Silk Road through Central Asia. However, Roman golden medallions from the reign of Antoninus Pius, and possibly his successor Marcus Aurelius, have been discovered at Óc Eo (in southern Vietnam), which was then part of the kingdom of Funan near Chinese-controlled Jiaozhi (northern Vietnam) and the region where Chinese historical texts claim the Romans first landed before venturing further into China to conduct diplomacy. Furthermore, in his "Geography" (), Ptolemy described the location of the Golden Chersonese, now known as the Malay Peninsula, and beyond this a trading port called Kattigara. Ferdinand von Richthofen assumed this as Hanoi, yet the Roman and Mediterranean artefacts found at Óc Eo suggest this location instead.
https://en.wikipedia.org/wiki?curid=17958273
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In the 2010s, "Sphagnum" peat in Chile has begun to be harvested at a large scale for export to countries like Japan, South Korea, Taiwan and the United States. Given "Sphagnum"’s property to absorb excess water and release it during dry months harvesting of "Sphagnum", means that overexploitation may threaten the water supply in the fjords and channels of Chile. Extraction of "Sphagnum" in Chile is regulated by law since 2 August 2018. Since 2018 Chilean law allows only for the manual extraction of "Sphagnum" using only pitchforks or similar tools as an aid. In a given area (polygon) at least 30% of "Sphagnum" coverage has to be left unharvested. Harvested "Sphagnum" fibers may not exceed 15 cm (6") in length and the remaining "Sphagnum" after harvest may never have a length less than 5 cm (2") over the water table. In the regions of Los Ríos (40°S) and Los Lagos (41–43°S) the same plots may be harvested after 12 years, while further south in Aysén (44–48°S) and Magallanes (49–56°S) 85 years have to pass before the same area is harvested again.
https://en.wikipedia.org/wiki?curid=645624
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Fast atom bombardment (FAB) is a method of ionization used in mass spectrometry that uses a beam of high energy atoms strikes a surface to create ions. An energetic beam of atoms or ions will destroy an organic molecule under conditions typically used to create secondary ions. Barber realised that mixing the compound of interest with a vacuum compatible low-volatility liquid such as glycerol effectively protected the organic molecule and allowed it to be ionized and detected. The protecting liquid "matrix" allowed compounds as large as 10,000 Da molecular mass to be detected. The concept of a protecting matrix was later used in matrix-assisted laser desorption ionization. The FAB technique was employed by Barber, Howard Morris (biochemist) and co-workers for early peptide sequencing experiments.
https://en.wikipedia.org/wiki?curid=44112242
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The Industrial Revolution of the 18th and 19th centuries set in train a movement for self-improvement among all classes of society. The spirit of enquiry generated by the new scientific inventions and their development in manufacturing processes led to the formation, originally in the big industrial cities of the north, of societies where members could attend lectures and have access to libraries. The first of these, the Manchester Literary and Philosophical Society, founded in 1781, and the Newcastle Literary and Philosophical Society, of 1793, were soon followed by similar organisations all over the country, as well as Mechanics' Institutions whose members included more working men. Libraries and reading rooms were at the heart of even the smallest institutions and to avoid controversy, politics and religion were banned.
https://en.wikipedia.org/wiki?curid=66305584
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BTA stands for "Boring and Trepanning Association" which was dominated by the now liquidated company Gebrüder Heller in Bremen Germany. Under their leadership, the new process was created during the Second World War by combining their own developments with those of Burgsmüller and Beisner. Burgsmüller replaced the grooved drill shaft used until then by a tube with a closed cross-section, which was more torsionally rigid, and for the first time conveyed the chips through the inside of the tube. Burgsmüller used a double-edged tool and an air-oil mixture, which is nowadays used in production with minimum quantity lubrication. Beisner improved the tool design and introduced oil as cooling lubricant. Heller, which was the first company to introduce carbide-tipped single-lip deep hole drilling tools, had the patent for the cutting edge/guide pad constellation which was then also used for the BTA tools.
https://en.wikipedia.org/wiki?curid=65795802
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Conventionally, treatment of cancers has been reliant on the morphological diagnosis of the cell type and tissue, taking microphytic and simple biological techniques to identify cancer subtypes. However, this method is proven to be hard for metastatic tumors with primary tumors further away from the site of discovery. Upon using recent, high dimensional complete molecular sequencing, diagnostics results may also include mutations observed in tumors to better understand cancer types and aid future treatment plans. An extreme example of a group of cancer, Esophageal adenocarcinomas, which are hardly distinguishable by morphology, makes morphological diagnosis extremely difficult. This is because nearly all oesophageal adenocarcinomas arise from Barrett's mucosa. Using cDNA microarrays, the genetic variations of subtypes of oesophageal adenocarcinomas are profiled and the prognosis of invasive hot cancers of this category is greatly improved.
https://en.wikipedia.org/wiki?curid=70427358
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Symmetry in physics has been generalized to mean invariance—that is, lack of change—under any kind of transformation, for example arbitrary coordinate transformations. This concept has become one of the most powerful tools of theoretical physics, as it has become evident that practically all laws of nature originate in symmetries. In fact, this role inspired the Nobel laureate PW Anderson to write in his widely read 1972 article "More is Different" that "it is only slightly overstating the case to say that physics is the study of symmetry." See Noether's theorem (which, in greatly simplified form, states that for every continuous mathematical symmetry, there is a corresponding conserved quantity such as energy or momentum; a conserved current, in Noether's original language); and also, Wigner's classification, which says that the symmetries of the laws of physics determine the properties of the particles found in nature.
https://en.wikipedia.org/wiki?curid=53741
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Some other technologies include Assistive technologies, rehabilitation robotics, and unobtrusive monitoring sensors that can help people with disabilities perform their daily tasks independently. Computational simulations, modeling, and machine learning (e.g. FG-AI4H) approaches can model health-related outcomes. These advanced simulations are able to be repeated, replicated, and tailored to any research area. In medical imaging, the applications for this technology helps healthcare professionals visualize genes, brain structures, and many other components of human anatomy. The flexibility in this technology also allows for more positive and accurate results. Mobile health (or mhealth) is the practice of medicine and public health supported by mobile devices.
https://en.wikipedia.org/wiki?curid=37451236
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"Achatinella lila" is the first Hawaiian achatinelline to be reintroduced from captive stocks, a significant milestone in the conservation of the endemic gastropod fauna of the islands. Achatinellines have long generation lengths, caused by slow maturity (5 years) and reproductive rates (1-7 offspring per year depending on the species). The snails also have significantly long lifespans (>10 years), making these species particularly prone to population declines as a result of invasive predators, habitat alteration, and over-collection. Prior to the modern reintroductions, the species was limited to a single wild population in the Ko'olau Mountains of Oahu. Six snails from the imperiled population were taken in 1997, and along with their offspring were grown until introductions were possible, in numbers of 50 snails per cohort. Frequent photograph-based identification monitoring occurs, along with searches for shells of dead individuals. Future conservation measures include continued monitoring and augmentation of the current population with new cohorts.
https://en.wikipedia.org/wiki?curid=12647504
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Ty5 is one of five endogenous retrotransposons native to the model organism "Saccharomyces cerevisiae", all of which target integration to gene poor regions. Endogenous retrotransposons are hypothesized to target gene poor chromosomal targets in order to reduce the chance of inactivating host genes. Ty1-Ty4 integrate upstream of Pol III promoters, while Ty5 targets integration to loci bound in heterochromatin. In the case of Ty5, this likely occurs by means of an interaction between the C-terminus of integrase and a target protein. The tight targeting patterns seen for the Ty elements are thought to be a means to limit damage to its host, which has a very gene dense genome. Ty5 was discovered in the mid 1990s in the laboratory of Daniel Voytas at Iowa State University. Ty5 is used as a model system by which to understand the biology of the telomere and heterochromatin. The Ty5 retrotransposon is used as a genetic model to study the architecture and dynamics of the telomeres and heterochromatin.
https://en.wikipedia.org/wiki?curid=7805539
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The Plus GSM World Blitz Cup was a 367-player Swiss-system tournament held in Warsaw, Poland, on 9 January 2000. Hosted at the Warsaw Polonia Chess Club, the event consisted of 11 rounds, with each match comprising two 5-minute games for a total of 22 games per player. Indian grandmaster Vishwanathan Anand, the tournament's No. 1 seed, triumphed over a strong field that included 70 Grandmasters and nine of the world's top-20 ranked players with a 17½/22 score. Anand's run saw him pick up 14 wins, 7 draws, and only 1 loss, highlighted by a 43-move win with the black pieces against Anatoly Karpov. The tournament's sponsor, "Plus GSM", set aside a $30,500 prize fund for the event as well as Nokia mobile communicators to be given to the top four finishers and the two top Polish players.
https://en.wikipedia.org/wiki?curid=20120963
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The paintings depicted mythological scenes less frequently than before. Images of the private and domestic world became more and more important. Scenes from the life of women are especially frequent. Mythological scenes are dominated by images of Dionysos and Aphrodite. It is not clear what caused this change of topic among some of the artists. Suggestions include a context with the horrors of the Peloponnesian War, but also the loss of Athens' dominant role in the Mediterranean pottery trade (itself partially a result of the war). The increasing role of new markets, e.g. Iberia, implied new needs and wishes on part of the customers. These theories are contradicted by the fact that some artists maintained the earlier style. Some, e.g. the Eretria Painter, attempted to combine both traditions. The best works of the Late Classical period are often found on smaller vessels, such as belly "lekythoi", "pyxides" and "oinochai". "Lekanis", Bell krater(see Typology of Greek Vase Shapes) and "hydria" were also popular.
https://en.wikipedia.org/wiki?curid=1457406
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The famous Glen Rose trackway on display in New York City includes theropod footprints belonging to several individuals which moved in the same direction as up to twelve sauropod dinosaurs. The theropod prints are sometimes found on top of the sauropod footprints, indicating that they were formed later. This has been put forth as evidence that a small pack of "Acrocanthosaurus" was stalking a herd of sauropods. While interesting and plausible, this hypothesis is difficult to prove and other explanations exist. For example, several solitary theropods may have moved through in the same direction at different times after the sauropods had passed, creating the appearance of a pack stalking its prey. The same can be said for the purported "herd" of sauropods, who also may or may not have been moving as a group. At a point where it crosses the path of one of the sauropods, one of the theropod trackways is missing a footprint, which has been cited as evidence of an attack. However, other scientists doubt the validity of this interpretation because the sauropod did not change gait, as would be expected if a large predator were hanging onto its side.
https://en.wikipedia.org/wiki?curid=1108139
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For any non-linear model (for instance Logit and Probit models), however, heteroscedasticity has more severe consequences: the maximum likelihood estimates (MLE) of the parameters will be biased, as well as inconsistent (unless the likelihood function is modified to correctly take into account the precise form of heteroscedasticity). Yet, in the context of binary choice models (Logit or Probit), heteroscedasticity will only result in a positive scaling effect on the asymptotic mean of the misspecified MLE (i.e. the model that ignores heteroscedasticity). As a result, the predictions which are based on the misspecified MLE will remain correct. In addition, the misspecified Probit and Logit MLE will be asymptotically normally distributed which allows performing the usual significance tests (with the appropriate variance-covariance matrix). However, regarding the general hypothesis testing, as pointed out by Greene, “simply computing a robust covariance matrix for an otherwise inconsistent estimator does not give it redemption. Consequently, the virtue of a robust covariance matrix in this setting is unclear.”
https://en.wikipedia.org/wiki?curid=70780067
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KLF4 is expressed in a variety of tissues and organs such as: the cornea where it is required for epithelial barrier function and is a regulator of genes required for corneal homeostasis; the skin where it is required for the development of skin permeability barrier function; the bone and teeth tissues where it regulates normal skeletal development; epithelial cell of the mouse male and female reproductive tract where in the males it is important for proper spermatogenesis; vascular endothelial cells<ref name="10.1074/jbc.M700078200"></ref> where it is critical in preventing vascular leakage in response to inflammatory stimuli; white blood cells where it mediates inflammatory responses cellular differentiation and proliferation; the kidneys where it is involved in the differentiation of embryonic stem cells and induced pluripotent stem (iPS) cells to renal lineage in vitro and its dysregulation has been linked to some renal pathologies.
https://en.wikipedia.org/wiki?curid=14165299
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The prevalence of polypharmacy is estimated to be between 10% and 90% depending on the definition used, the age group studied, and the geographic location. Polypharmacy continues to grow in importance because of aging populations. Many countries are experiencing a fast growth of the older population, 65 years and older. This growth is a result of the baby-boomer generation getting older and an increased life expectancy as a result of ongoing improvement in health care services worldwide. About 21% of adults with intellectual disability are also exposed to polypharmacy. Additionally, studies show that the percentage of patients greater than 65 years-old using more than 5 medications increased from 24% to 39% between 1999 and 2012.
https://en.wikipedia.org/wiki?curid=1099391
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Chapter 15, “The Rule of Technology,” seeks to determine if there are “empirical findings” on the question of technology's argued-for power in politics and society. Borgmann quickly surveys representative data, which he argues “is compatible with the relation to technology that has been explicated above” (106). Basically, people have “trust or hope in technology,” though this doesn't necessarily equate to more political or social good (106). Chapter 16 finishes this four chapter section by showing how the device paradigm explains “political apathy and the persistence of social injustice” (107). First, technology drives political apathy by virtue of its tendency to create general voter contentment, and because “technological politics . . . engenders no searching debates of the good life,” having already located it in availability and consumption as described in Chapter 14 (107-109). Second, “inequality favors the advancement and stability of the reign of technology”—“stages of affluence” created by inequality only support a consumption lifestyle, which is an effect of the device paradigm (112). He concludes this four chapter section by noting that “politics is merely the metadevice of the technological order” . . . it cannot lead to the good life because it cannot escape the determination of the device paradigm, which inevitably only supports its own socio-political effects (113).
https://en.wikipedia.org/wiki?curid=29772724
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Progress was slow until 1890, when Richard Jesse was appointed university president. The school was housed in an old frame building on the northwest corner of campus. Equipment was inadequate and out of date, and the program was in danger of being discontinued. Jesse led the school to new heights due to nationwide advances in modernizing medical education. In addition, he reorganized the academic structure and raised financial support for new facilities. W.L. Parker established an endowment that supplemented the cost of building the Parker Memorial Hospital. In 1957, the school was transformed into a four-year program. As a result, the medical center was constructed in 1960. The name was later changed to University Hospitals and Clinics.
https://en.wikipedia.org/wiki?curid=13315742
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In the externalities paradigm, the key concept is called pecuniary externality. This is defined as an externality that arises when one economic agent's action affects the welfare of another agent through effects on prices. As argued by Greenwald and Stiglitz (1986), when there are distortions in the economy (such as incomplete markets or imperfect information), policy intervention can make everyone better off in a Pareto efficiency sense. Indeed, a number of authors have shown that when agents face borrowing constraints or other sorts of financial frictions, pecuniary externalities arise and different distortions appear, such as overborrowing, excessive risk-taking, and excessive levels of short-term debt. In these environments macroprudential intervention can improve social efficiency. An International Monetary Fund policy study argues that risk externalities between financial institutions and from them to the real economy are market failures that justify macroprudential regulation.
https://en.wikipedia.org/wiki?curid=26643945
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This refers to temperature-controlled radiofrequency energy being delivered to the anal canal, and is marketed as the SECCA procedure. This procedure aims to create a controlled scarring and stricturing of the anal canal. In theory, it is thought that radiofrequency induced IAS injury may cause collagen deposition and fibrosis (scarring), resulting in the affected area tightening. Specialized surgical instrument called a radiofrequency handpiece is used. It has 4 needles which enter the IAS and heat up to 85 °C. This causes the water molecules in the tissue to vibrate with subsequent frictional heating. The hand piece is cooled by water and monitors the temperature of the tissues it is applied to for safety. It is thought that the improvement in FI occurs over time as collagen is deposited and the tissues undergo remodeling. The procedure is carried out under local anesthesia (with or without conscious sedation) on an outpatient basis. There appear to be relatively few serious complications.
https://en.wikipedia.org/wiki?curid=38075591
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Desorption electrospray ionization (DESI) is an ambient ionization technique that can be coupled to mass spectrometry (MS) for chemical analysis of samples at atmospheric conditions. Coupled ionization sources-MS systems are popular in chemical analysis because the individual capabilities of various sources combined with different MS systems allow for chemical determinations of samples. DESI employs a fast-moving charged solvent stream, at an angle relative to the sample surface, to extract analytes from the surfaces and propel the secondary ions toward the mass analyzer. This tandem technique can be used to analyze forensics analyses, pharmaceuticals, plant tissues, fruits, intact biological tissues, enzyme-substrate complexes, metabolites and polymers. Therefore, DESI-MS may be applied in a wide variety of sectors including food and drug administration, pharmaceuticals, environmental monitoring, and biotechnology.
https://en.wikipedia.org/wiki?curid=13281848
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B-36s were involved in two "Broken Arrow" incidents. On 13 February 1950, B-36 serial number 44-92075, crashed in an unpopulated region of British Columbia, resulting in the first loss of an American atom bomb. The bomb's plutonium core was dummy lead, but it did have TNT, and it detonated over the ocean before the crew bailed out. Locating the crash site took some effort. On 4 November 2016, however, an object similar to the bomb was reported to have been located by a diver near the archipelago of Haida Gwaii, off the coast of British Columbia; the Royal Canadian Navy said vessels would be deployed to investigate the object. After investigation, the Royal Canadian Navy determined that it was not the lost bomb. Later in 1954, the airframe, stripped of sensitive material, was substantially destroyed "in situ" by a U.S. military recovery team.
https://en.wikipedia.org/wiki?curid=385077
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All members of "Dracunculus" are obligate parasites of mammals or reptiles. Adult females reside just under the skin, and eventually form a blister in the host's skin through which they access the environment. When the blister comes into contact with water, the female releases several hundred thousand first-stage ("L1") larvae. L1 larvae must be ingested by a cyclopoid copepod, which serves as an intermediate host. Inside the copepod, the larvae develop to the third-stage ("L3"). Definitive hosts acquire "Dracunculus" by incidentally ingesting infected copepods while drinking water, or by consuming a paratenic host (e.g. a frog or fish) that has itself consumed a copepod. Inside the definitive host, the L3 larvae leave the digestive tract and migrate to deeper tissues, where within 60–70 days they undergo their final two molts to form sexually mature adults. Male and female adult worms then mate, and pregnant females migrate back to the host's skin – typically to an extremity – and form a blister to repeat the cycle. Following the release of her larvae, the female worm dies, and is either extracted by the affected animal, or falls back into the tissue and is calcified.
https://en.wikipedia.org/wiki?curid=840588
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A 2018 Cochrane systematic review included 12 studies of ADOS diagnostic accuracy in pre-school children (Modules 1 and 2). The summary sensitivity was 0.94 (95% CI 0.89 to 0.97), with sensitivity in individual studies ranging from 0.76 to 0.98. The summary specificity was 0.80 (95% CI 0.68 to 0.88), with specificity in individual studies ranging from 0.20 to 1.00. The studies were evaluated for bias using the QUADAS-2 framework; of the 12 included studies, 8 were evaluated as having a high risk of bias, while for the remaining four there was insufficient information available for the risk of bias to be properly evaluated. The authors could not identify any studies for the ADOS-2; the scope of the review was limited to preschool age children (mean age under 6 years), which excluded studies of Modules 3 and 4 from the meta-analysis. One included study examined the additive sensitivity and specificity of the ADOS used in combination with the ADI-R; that study found an 11% improvement in specificity (compared to ADOS alone) at the cost of a 14% reduction in sensitivity; however, due to overlapping confidence intervals, that result could not be considered statistically significant.
https://en.wikipedia.org/wiki?curid=3107620
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