doc_id
int32
18
2.25M
text
stringlengths
245
2.96k
source
stringlengths
38
44
__index_level_0__
int64
18
2.25M
1,445,758
Vlastos was born in Istanbul, to a Scottish mother and a Greek father, where he received a Bachelor of Arts from Robert College before moving to Harvard University where he received a PhD in 1931. After teaching for several years at Queen's University in Kingston, Ontario, Canada, he moved to Cornell University in 1948. He was Stuart Professor of Philosophy at Princeton University between 1955 and 1976, and then Mills Professor of Philosophy at University of California, Berkeley until 1987. He received a MacArthur Foundation Fellowship in 1990. He was twice awarded a Guggenheim Fellowship, was a fellow of the American Academy of Arts and Sciences, a corresponding fellow of the British Academy, and a member of the American Philosophical Society. In 1988 he gave the British Academy's Master-Mind Lecture. Vlastos died in 1991, before finishing a new compilation of essays on Socratic philosophy.
https://en.wikipedia.org/wiki?curid=1036373
1,444,942
1,126,150
The D. Mendeleev University of Chemical Technology of Russia is one of the leading centers of scientific and innovative research. The university regularly implements projects carried out under federal target programs, as well as numerous grants initiated by scientific foundations. Only in 2020, the university carried out 202 researches, 40 grants from the Russian Foundation for Basic Research, and 9 from the Russian Scientific Foundation. As of 2021, MUCTR has more than 120 cooperation agreements with universities and companies from more than 35 countries around the globe. In 2018, under the state program "Industry Development and Increasing its Competitiveness," the university founded the Mendeleev Engineering Center, which now hosts most of its laboratories and scientific equipment. As of 2021, preparations are underway at the Tushino complex to create an innovative scientific and technological center called "Mendeleev Valley". The Mendeleev Valley project was approved by a government decree issued in 2019.
https://en.wikipedia.org/wiki?curid=20001197
1,125,573
1,131,353
In 2021, historian Mark Peterson contended that the background for "Ideological Origins" shaped Bailyn's principal contribution to historiography--"taking ideas seriously." This emphasis, rather than "grandiloquent theoretical statements," demonstrated Bailyn's belief that "language and rhetoric are not the only forms through which human beings express their thinking or convey their ideas," even if ideas initially derived from Bailyn's notion of "formal discourse." Peterson concluded that "the underlying premises about property and liberty of these eighteenth-century arguments lie at the heart of our altered condition of life." Historian Craig Yirush previously noted that Bailyn described "the authors of "Cato’s Letters" (a text which, thanks to Bailyn, became central to the republican/liberalism debate) [and Daniel T. Rodgers' background for "The Radicalism of the American Revolution"], as 'spokesmen for extreme libertarianism,' a term that recurs frequently in the book" as a paleonym.
https://en.wikipedia.org/wiki?curid=19064726
1,130,763
1,408,281
The most practical sensor for measuring temperature change in titrating solutions has been found to be the thermistor. Thermistors are small solid state devices which exhibit relatively large changes in electrical resistance for small changes in temperature. They are manufactured from sintered mixed metal oxides, with lead wires enabling connection to electrical circuitry. The thermistor is encapsulated in a suitable electrically insulating medium with satisfactory heat transfer characteristics and acceptable chemical resistance. Typically for thermistors used for chemical analysis the encapsulating medium is glass, although thermistors encapsulated in epoxy resin may be used in circumstances where either chemical attack (e.g., by acidic fluoride-containing solutions) or severe mechanical stress is anticipated. The thermistor is supported by suitable electronic circuitry to maximize sensitivity to minute changes in solution temperature. The circuitry in the Metrohm 859 Titrotherm thermometric titration interface module is capable of resolving temperature changes as low as 10 K.
https://en.wikipedia.org/wiki?curid=8380514
1,407,490
211,055
A graduate of the University of Marburg, Hahn studied under Sir William Ramsay at University College London and at McGill University in Montreal under Ernest Rutherford, where he discovered several new radioactive isotopes. He returned to Germany in 1906; Emil Fischer placed a former woodworking shop in the basement of the Chemical Institute at the University of Berlin at his disposal to use as a laboratory. Hahn completed his habilitation in the spring of 1907 and became a "Privatdozent". In 1912, he became head of the Radioactivity Department of the newly founded Kaiser Wilhelm Institute for Chemistry. Working with the Austrian physicist Lise Meitner in the building that now bears their names, he made a series of groundbreaking discoveries, culminating with her isolation of the longest-lived isotope of protactinium in 1918.
https://en.wikipedia.org/wiki?curid=46825
210,948
1,082,248
After the disappointing sales of their early games, RSG turned to SegaSoft to take over as the sole publisher for their titles in development. Sega canceled about half of the titles RSG was working on to reduce costs and speed up releases, with a noticeable negative effect on their quality. "Rocket Jockey" shipped missing local area network support that had been heavily promoted to the press and was even advertised on the box, but wouldn't be patched into the game for several months. "Obsidian "also suffered quality problems as it had several bugs present at the time of its release, including a few that prevented completion of the game. Despite pre-release excitement for both "Rocket Jockey" and "Obsidian", neither did particularly well financially. Unable to secure additional funding, RSG was forced to close down in April 1997.
https://en.wikipedia.org/wiki?curid=5228695
1,081,692
1,163,856
With EDCA, high-priority traffic has a higher chance of being sent than low-priority traffic: a station with high priority traffic waits a little less before it sends its packet, on average, than a station with low priority traffic. This is accomplished through the TCMA protocol, which is a variation of CSMA/CA using a shorter arbitration inter-frame space (AIFS) for higher priority packets. The exact values depend on the physical layer that is used to transmit the data. In addition, EDCA provides contention-free access to the channel for a period called a Transmit Opportunity (TXOP). A TXOP is a bounded time interval during which a station can send as many frames as possible (as long as the duration of the transmissions does not extend beyond the maximum duration of the TXOP). If a frame is too large to be transmitted in a single TXOP, it should be fragmented into smaller frames. The use of TXOPs reduces the problem of low rate stations gaining an inordinate amount of channel time in the legacy 802.11 DCF MAC. A TXOP time interval of 0 means it is limited to a single MAC service data unit (MSDU) or MAC management protocol data unit (MMPDU).
https://en.wikipedia.org/wiki?curid=244315
1,163,239
1,973,588
On the other hand, if the heating process is fast enough that the substance cannot reach binodal curve through heterogeneous boiling, the liquid becomes superheated with its temperature above boiling point at a given pressure. System then shifts away from the binodal and continues to follow the red curve and thus approaches towards spinodal. Near the critical temperature thermodynamic properties like specific heat, density varies rapidly as shown on the figure at right. Density and entropy undergoes largest fluctuation. During this time it is possible to have a large density fluctuation in a very small volume. This fluctuation of density results in the nucleation of a bubble. The bubble nucleation process occurs homogeneously everywhere in the substance. The rate of bubble nucleation and vapor sphere growth rate increases exponentially closer to the critical temperature. The increasing nucleation prevents the system from going to the spinodal. When the bubble radius reaches the critical size it continues to expand and eventually explodes resulting a mixture of gas and droplets which is termed as explosive boiling or phase explosion.
https://en.wikipedia.org/wiki?curid=38721699
1,972,453
55,073
At the cellular level, the nervous system is defined by the presence of a special type of cell, called the neuron. Neurons have special structures that allow them to send signals rapidly and precisely to other cells. They send these signals in the form of electrochemical impulses traveling along thin fibers called axons, which can be directly transmitted to neighboring cells through electrical synapses or cause chemicals called neurotransmitters to be released at chemical synapses. A cell that receives a synaptic signal from a neuron may be excited, inhibited, or otherwise modulated. The connections between neurons can form neural pathways, neural circuits, and larger networks that generate an organism's perception of the world and determine its behavior. Along with neurons, the nervous system contains other specialized cells called glial cells (or simply glia), which provide structural and metabolic support.
https://en.wikipedia.org/wiki?curid=21944
55,050
1,782,685
Following World War I a number of faculty members in Adventist colleges believed that pre-military training and guidance should continue to be given students of draft age. At Emmanuel Missionary College (now Andrews University) in 1927 Lewis S. Williams started a program, but when it was criticized as being "too militaristic" it was stopped. At Walla Walla College (now Walla Walla University) students directed a set of questions to the General Conference regarding whether it was better to enlist or be drafted, clarification regarding appropriate duties for Sabbath, whether it was ever acceptable to bear arms, and whether the moral nature of a conflict changed one's responsibility for military service. The students' questions were discussed by a General Conference committee of seven individuals charged with studying noncombatancy. However, this group could not reach a consensus, so the questions remained unanswered.
https://en.wikipedia.org/wiki?curid=9672275
1,781,681
753,969
In 2016, three important initiatives were taken up by AICTE. First one was a responsibility given by MHRD to evolve a national MOOCs platform SWAYAM. Second one is that of launching a Smart India Hackathon-2017 challenging the young bright talented students of technical colleges to solve the 598 problems of 29 different Government departments. Third one is that of launching of an AICTE's Student Start up Policy by Hon. President on 16 Nov, during visitors conference from rashtrapati Bhavan. In 2009, the Union Minister of Education formally communicated his intentions of closing down AICTE and related body, the University Grants Commission (UGC). This later led to reforms in the way the AICTE approves institutes, and to establishing the National Board of Accreditation (NBA) as an independent body.
https://en.wikipedia.org/wiki?curid=3072183
753,566
1,421,006
The reactor core is cylindrical, about 2 ft (0.61 m) high and in diameter. A 5-in. (12.70-cm)-diameter hole, the "flux trap," forms the center of the core. The target is typically loaded with curium-244 and other transplutonic isotopes and is positioned on the reactor vertical axis within the flux trap. The fuel region is made of two concentric fuel elements. The inner element contains 171 fuel plates; the outer element has 369. The fuel plates are curved in the shape of an involute, hence constant coolant channel width. The fuel (93% U enriched UO-Al cermet pg.22) is non-uniformly distributed along the arc of the involute to minimize the radial peak-to-average power density ratio. A burnable poison (boron-10) is included in the inner fuel element primarily to flatten the radial flux peak providing a longer cycle for each fuel element. Average core lifetime with typical experiment loading is ~23 days at 85 MW.
https://en.wikipedia.org/wiki?curid=3070210
1,420,206
1,759,884
Periods of volcanic activity occurred throughout central Canada during the Jurassic and Cretaceous periods. The source for this volcanism was a long-lived and stationary area of molten rock called the New England or Great Meteor hotspot. The first event erupted kimberlite magma in the James Bay lowlands region of northern Ontario 180 million years ago, creating the Attawapiskat kimberlite field. Another kimberlite event spanned a period of 13 million years 165 to 152 million years ago, creating the Kirkland Lake kimberlite field in northeastern Ontario. Another period of kimberlite volcanism occurred in northeastern Ontario 154 to 134 million years ago, creating the Lake Timiskaming kimberlite field. As the North American Plate moved westward over the New England hotspot, the New England hotspot created the magma intrusions of the Monteregian Hills in Montreal in southern Quebec. These intrusive stocks have been variously interpreted as the feeder intrusions of long extinct volcanoes that would have been active 125 million years ago, or as intrusions that never breached the surface in volcanic activity. The lack of a noticeable hotspot track west of the Monteregian Hills might be due either to failure of the New England mantle plume to pass through massive strong rock of the Canadian Shield, the lack of noticeable intrusions, or to strengthening of the New England mantle plume when it approached the Monteregian Hills region.
https://en.wikipedia.org/wiki?curid=22444008
1,758,891
1,465,297
Currently in Israel, MayMaan Research, LLC, has developed a powerful piston engine that runs on a combination of water and ethanol (or another alcohol) and does not require the use of diesel or regular gasoline. The water powered piston engine eliminates both nitrogen and sulfur oxides that create harmful air quality. They estimate that it is 60 percent more efficient than gasoline and can save on 50 percent of fuel costs. They plan to not only focus on automobiles but overall transportation such as ships, trains, and large trucks. The mission that MayMaan Research and its founders are trying to accomplish is to eliminate the dependency on fossil fuels worldwide and to create a greener environment for all.
https://en.wikipedia.org/wiki?curid=19949953
1,464,474
2,157,684
The metabolism of "C. cupreum" is complex. In an Expressed Sequence Tag (EST) study conducted by Zhang and Yang in 2007 "C. cupreum" demonstrated a diverse expression of genes related to metabolic pathways. In their study the most represented metabolic pathway was glycolysis demonstrating its importance in mycelia cell metabolism. The second most represented category was porphyrin and chlorophyll metabolism, the fungi cannot produce chlorophyll but they have a heme biosynthetic pathway. Genes encoding coproporphyrinogen oxidase, an essential enzyme in the heme biosynthetic pathway were found as well as genes associated with the electron transport chain and oxidative phosphorylation. The citric acid cycle also has a role in its energy metabolism with 18% of metabolic genes relating to TCA cycle function. Saccharide metabolism associated genes were also found for the metabolism of: galactose, fructose, mannose, sucrose, starch, nucleotide sugars, amino sugars, as well as glycoprotein and peptide-protein biosynthesis. Many genes have been identified in this species that support protein biosynthesis and proteolytic systems including: glutamate, methionine and tryptophan metabolism; phenylalanine, valine, leucine and isoleucine degradation; valine, leucine, isoleucine, tyrosine and tryptophan biosynthesis. Proteases produced by "C. cupreum" are involved in pathogen cell wall breakdown and contribute to its biocontrol activity. Biotechnological interest in "C. cupreum" is related to its production of cellulase and laccase. "C. cupreum" is able to degrade catechin.
https://en.wikipedia.org/wiki?curid=26824852
2,156,452
567,072
Von Ohain started to develop his first turbojet engine designs independently during the same period that Whittle was working on his own similar designs in Britain, and their turbojet designs are said by some to be an example of simultaneous invention. The core of Ohain's first jet engine, the Heinkel HeS 1, which he described as his "hydrogen test engine" was run "in March or early April" according to Ohain (although Ernst Heinkel's diaries record it as September 1937). The engine required modifications to cure overtemperature problems and to fit a fuel system to enable it to run self-contained on liquid fuel which was achieved in September 1937. Ohain's jet engine was the first to fly "operationally" within the Heinkel He 178 aircraft in 1939, which was followed by Whittle's engine within the Gloster E.28/39 in 1941. Operational jet fighter aircraft from both Germany and Britain entered operational use virtually simultaneously in July, 1944. After the war the two men met, became friends and received the Charles Stark Draper Prize for Engineering "for their independent development of the turbojet engine." Von Ohain´s design, an axial-flow engine, as opposed to Whittle's centrifugal flow engine, was eventually adopted by most manufacturers by the 1950's.
https://en.wikipedia.org/wiki?curid=259389
566,782
1,315,473
As many as 20 species of bovids are also potential prey, including various sheep, goats, antelope, bison ("Bison" ssp.) and muskoxen ("Ovibos moschatus"). Bovids are mostly taken in random encounters when bears come across a vulnerable, usually young or sickly individual, as smaller species are extremely agile (and often live in rocky environments) and larger varieties are potentially dangerous, especially if aware of the bear's presence. In some parts of eastern Europe and Russia, wild boar ("Sus scrofa") may be taken in surprisingly large quantities, considering the mostly herbivorous reputation of bears in these regions. One study from the Amur territory of Russia found that brown bears were actually more prolific killers of wild boars than both tigers and gray wolves, but these results are probably biased due to the scarcity of tigers in the region because of overhunting of the big cat. In rare cases, brown bears are capable of killing bulls of the largest ungulates in regions they inhabit, reportedly including moose, muskox, wild yak ("Bos mutus") and both American and European bison ("Bison bison" and "B. bonasus"). Remarkably, such attacks are sometimes carried out by bears that were not particularly large, including interior sow grizzlies or small-bodied bears from the Central Arctic, and some exceptional ungulates taken may be up to two to three times the weight of the attacking bear. However, most of the bears who took adult moose in east-central Alaska and Scandinavia were large, mature males.
https://en.wikipedia.org/wiki?curid=63866123
1,314,748
148,661
On March 12, 2007, "The New York Times" reported that "Spacewar!" was named to a list of the ten most important video games of all time, the so-called game canon, which were proposed to be archived in the Library of Congress. The Library of Congress took up this video game preservation proposal and began with the games from this list. In 2018, it was inducted into the World Video Game Hall of Fame by The Strong and the International Center for the History of Electronic Games. Also in 2018, the Academy of Interactive Arts & Sciences awarded the Pioneer Award, given "for individuals whose career spanning work has helped shape and define the interactive entertainment industry", to the surviving contributors to "Spacewar!": Dan Edwards, Martin Graetz, Steven Piner, Steve Russell, Peter Samson, Robert Sanders, and Wayne Wiitanen.
https://en.wikipedia.org/wiki?curid=5482854
148,600
1,838,863
Shelley's biographies begin by describing the author, offering examples of their writings in the original language and in translation, and end by summarising their "beauties and defects". She also discusses the problems of writing biography itself, engaging in a written dialogue with the theories of her now-dead father. In "Of History and Romance" Godwin had written that for the genius, "I am not contented to observe such a man upon the public stage, I would follow him into his closet. I would see the friend and the father of a family, as well as the patriot". Shelley and Godwin had seen the negative effects of this approach when Godwin published "Memoirs of the Author of A Vindication of the Rights of Woman" (1798), his biography of Shelley's mother, Mary Wollstonecraft. Its frank description of Wollstonecraft's affairs and suicide attempts shocked the public and sullied her reputation. Shelley criticises this technique in her biographies, concerned that such works perpetuate "follies". She is even more concerned that often an absence of information regarding a particular writer is interpreted as evidence that the writer was insignificant.
https://en.wikipedia.org/wiki?curid=17481711
1,837,814
1,278,267
One technique for disrupting translation, antisense oligonucleotide therapy, which uses single strands of RNA complementary to the target to prevent the target from binding to a ribosome and trigger the degradation of the target, has already begun clinical trials in other neurodegenerative disorders with many different delivery mechanisms. A similar technique is RNA interference or RNAi. Instead of complementary 'antisense' strands of RNA, RNAi uses very small double stranded segments of RNA called small interfering RNA which triggers degradation of the target before it can be translated. Studies using RNAi agents delivered by adeno associated viruses (AAV) has been shown to halt progression of disease and lead to some recovery of function with treatment applied to only the deep cerebellar nuclei in mice and rhesus macaques. Both of these techniques are difficult to apply to polyglutamine diseases because targeting the polyglutamine tract may cause normal genes to be downregulated as well. SCA1 has also shown to be difficult to target reliably with single-nucleotide polymorphisms limiting the number of ways RNAi and antisense therapy techniques can be designed to treat SCA1.
https://en.wikipedia.org/wiki?curid=54421246
1,277,574
1,702,644
A multi-mode interferometer (MMI), also known as a multimode interference coupler, is a micro-scale structure in which light waves can travel, such that the optical power is split or combined in a predictable way. In an MMI, light is confined and guided, and thus the MMI is essentially a broad optical waveguide. For example, an ideal 1x2 MMI would be a 50-50 splitter, such that light enters along one path and exits along two paths, with half the power in each exit path. These entrance and exit paths are narrow waveguides, and the MMI itself is in the shape of a broad rectangular box. An ideal 50-50 splitter is nearly impossible in practice, due to the complex behavior of light. Optical loss will always occur as light travels through an MMI, which means that the total output power of a real MMI is less than the total input power. Additionally, the light propagates through the rectangular box in multiple modes, while also experiencing reflection and interference. This leads to mathematical models and equations that are too complex to solve by hand, and thus MMIs are typically designed through computer simulations.
https://en.wikipedia.org/wiki?curid=63556060
1,701,688
1,692,630
Let be the 3-dimensional closed Lie subgroup of GL() preserving . As can be identified with a 3-dimensional Lorentzian or Minkowski space with signature (2,1), the group is isomorphic to the Lorentz group O(2,1) and therefore SL(2,R) / {±}. Choosing e to be a positive root vector in X, the stabilizer of e is a maximal compact subgroup of isomorphic to O(2). The homogeneous space = / is a symmetric space of constant negative curvature, which can be identified with the 2-dimensional hyperboloid or Lobachevsky plane formula_27. The discrete group acts discontinuously on / : the quotient space \ / is compact if , and are all finite, and of finite area otherwise. Results about the Tits fundamental chamber have a natural interpretation in terms of the corresponding Schwarz triangle, which translate directly into the properties of the tessellation of the geodesic triangle through the hyperbolic reflection group . The passage from Coxeter groups to tessellation can first be found in the exercises of §4 of Chapter V of , due to Tits, and in ; currently numerous other equivalent treatments are available, not always directly phrased in terms of symmetric spaces.
https://en.wikipedia.org/wiki?curid=2069325
1,691,679
1,998,451
The outdoors tennis competition saw seventy players enter from twelve nations. However, Great Britain did not enter any competitors as the dates of the outdoor competition clashed with the 1912 Wimbledon Championships despite attempts by the British authorities to convince the Olympic organizing committee to change the dates. Other noted tennis players including Anthony Wilding, André Gobert and Arthur Gore refused to compete at the Olympics and instead attended Wimbledon. The gold and silver medals in the gentlemen's singles ended up being decided between two South Africans, with Charles Winslow and Harold Kitson playing each other. Winslow won the match and the gold medal, 7–5, 4–6, 10–8, 8–6. The duo also competed as a pair in the gentlemen's doubles and took the gold medal, beating the Austrians Felix Pipes and Arthur Zborzil. Marguerite Broquedis of France defeated Dorothea Koring of Germany in the ladies' singles for the gold medal. In the mixed double Koring teamed up with Heinrich Schomburgk to win the gold, the duo defeating Sigrid Fick and Gunnar Setterwall of Sweden in the final.
https://en.wikipedia.org/wiki?curid=2547832
1,997,308
405,318
A critique of Kohlberg's theory is that it emphasizes justice to the exclusion of other values and so may not adequately address the arguments of those who value other moral aspects of actions. Carol Gilligan, in her book "In a Different Voice", has argued that Kohlberg's theory is excessively androcentric. Kohlberg's theory was initially based on empirical research using only male participants; Gilligan argued that it did not adequately describe the concerns of women. Kohlberg stated that women tend to get stuck at level 3, being primarily concerned with details of how to maintain relationships and promote the welfare of family and friends. Men are likely to move on to the abstract principles and thus have less concern with the particulars of who is involved. Consistent with this observation, Gilligan's theory of moral development does not value justice above other considerations. She developed an alternative theory of moral reasoning based on the ethics of caring. Critics such as Christina Hoff Sommers argued that Gilligan's research is ill-founded and that no evidence exists to support her conclusion.
https://en.wikipedia.org/wiki?curid=1058693
405,118
1,377,302
The Stillwater complex is a large layered intrusion with many similarities to the Bushveld igneous complex of South Africa. The complex was intruded into existing gneisses during the Archean at about 2700 Ma. Host rocks on the northern side are Archean sedimentary rocks while the southern boundary includes Precambrian rocks of granite, granite gneiss and schist. The Precambrian rock on its southern side is mostly provided by the Beartooth Mountains. The region had a quartz monzonite intrusion and underwent extensive metamorphism, faulting and folding during the Archean at about 2500 Mya. The area was intruded by north trending mafic dikes before being unconformably covered by a middle-Cambrian sedimentary rock sequence. The intrusion forms a linear body stretching some 30 miles (48 km) and striking roughly N 60 °W and dipping from 50° to near 90° to the northeast. The exposed thickness is around 18,000 feet (5500 m) with an additional estimated 5,000 to 15,000 feet (1524 to 4572 m) having been removed from the top by pre-Cambrian erosion.
https://en.wikipedia.org/wiki?curid=12745857
1,376,540
1,873,295
The school officially opened on July 1, 2008, following decades of dedicated development. Planning for the school was initiated by a partnership of public health practitioners, academics, and business leaders. The partnership formed an official taskforce in 2002 in order to develop a strategic plan and seek the funding necessary to open a school of public health. The task force was successful and instrumental in the decision to open the school as a collaboration. In August 2007, each university president or chancellor signed a memorandum of agreement to open the school and the founding dean was appointed that December. Within months the school admitted its first class of students, setting the stage for growth future development. Among those developments, the school received full accreditation from the Council on Education for Public Health October 2010, and was reaccredited in September 2015.
https://en.wikipedia.org/wiki?curid=29557177
1,872,218
1,441,426
Hecker obtained a job at Microsoft in Seattle, Washington around 1992. He worked there for three years, becoming creator and leader of the WinG API project for the Windows operating system. After completing WinG, he moved to Microsoft's entertainment division where he wrote the rendering engine for the real-time globe display in the Encarta World Atlas. In 1995, Hecker left Microsoft to form his own company in Seattle, Definition Six, a games and computer graphics consulting company that was later moved to Oakland, California. The company focused on the development of physics technology for games and lobbied for the OpenGL standard for graphics display. The company never actually shipped a commercial title, but did produce a tech demo. He also spent several years working independently on a game based on rock climbing as a side project, though it was never completed.
https://en.wikipedia.org/wiki?curid=9933008
1,440,616
546,150
The dominant contemporary techniques, microarrays and RNA-Seq, were developed in the mid-1990s and 2000s. Microarrays that measure the abundances of a defined set of transcripts via their hybridisation to an array of complementary probes were first published in 1995. Microarray technology allowed the assay of thousands of transcripts simultaneously and at a greatly reduced cost per gene and labour saving. Both spotted oligonucleotide arrays and Affymetrix high-density arrays were the method of choice for transcriptional profiling until the late 2000s. Over this period, a range of microarrays were produced to cover known genes in model or economically important organisms. Advances in design and manufacture of arrays improved the specificity of probes and allowed more genes to be tested on a single array. Advances in fluorescence detection increased the sensitivity and measurement accuracy for low abundance transcripts.
https://en.wikipedia.org/wiki?curid=54112223
545,864
794,594
The medical college is situated in Byculla on the campus of Sir J. J. Hospital. The hospital has 2844 beds and caters to an annual load of 1,200,000 out-patients and 80,000 in-patients, from all parts of Maharashtra and central India. The campus is the largest of any medical colleges in Mumbai. It is spread out over in the Byculla area of South Mumbai. The campus is notable for its greenery and open spaces in an otherwise congested part of the city. With gradual additions and expansions since its initial foundation, the campus has a mix of buildings depicting both modern Indian and Colonial architecture. As the campus expanded it incorporated hospitals that were originally independent before being absorbed into J.J. Hospital and thus retain some of their older names, notably: C.J. Ophthalmic Hospital, B.J. Hospital for children and the David Sasoon Hospital. The campus has a total of 45 wards, 5 hostels and 7 canteens. It also provides residential facilities to its teaching faculty, resident doctors, medical students, nurses and other hospital workers. The anatomy hall of Grant Medical College was featured in the movie Munnabhai M.B.B.S. as central lecture hall in the fictional medical school attended by the lead character. In addition to the main campus situated at Byculla, it also has a sea facing gymkhana at marine drive in south Mumbai. Recently
https://en.wikipedia.org/wiki?curid=566826
794,169
1,507,753
"C. a. amoenus" is found from Rhode Island, southwestern Massachusetts, and southeastern New York south to South Carolina, northern Georgia, and central Alabama. It has separate internasal and prefrontal scales. No gular scales occur between the posterior chin shields. Each maxilla has 9–12 small teeth. The single hemipenis has a forked sulcus spermaticus and three large basal spines. Adult males have ridges on the body scales that are dorsal to the anal plate. The young of this species are always much darker than the parent; then during the second year they change from a dark gray to the brown of the adult specimen. "C. a. amoenus" is almost exclusively an earthworm predator, but has also been known to consume other prey, from slugs to small salamanders. Due to human activities, "C. a. amoenus" is becoming rare in some areas. It is currently protected as threatened in Massachusetts and as a species of special concern in Rhode Island.
https://en.wikipedia.org/wiki?curid=38909820
1,506,907
511,785
As the sinologist historian Derk Bodde points out, Su Song's astronomical clock did not lead to a new generation of mass-produced clockworks throughout China since his work was largely a government-sponsored endeavor for the use of astronomers and astrologers in the imperial court. Yet the mechanical legacy of Su Song did not end with his work. In about 1150, the writer Xue Jixuan noted that there were four types of clocks in his day, the basic waterclock, the incense clock, the sundial, and the clock with 'revolving and snapping springs' ('gun tan'). The rulers of the continuing Yuan dynasty (1279–1368 AD) had a vested interest in the advancement of mechanical clockworks. The astronomer Guo Shoujing helped restore the Beijing Ancient Observatory beginning in 1276, where he crafted a water-powered armillary sphere and clock with clock jacks being fully implemented and sounding the hours. Complex gearing for uniquely Chinese clockworks were continued in the Ming dynasty (1368–1644), with new designs driven by the power of falling sand instead of water to provide motive power to the wheel drive, and some Ming clocks perhaps featured reduction gearing rather than the earlier escapement of Su Song. The earliest such design of a sand-clock was made by Zhan Xiyuan around 1370, which featured not only the scoop wheel of Su Song' device, but also a new addition of a stationary dial face over which a pointer circulated, much like new European clocks of the same period.
https://en.wikipedia.org/wiki?curid=1861611
511,519
1,747,377
In the same period Friedrich Traugott Kützing (1807–1893) in Germany described more new genera than anyone either before or after (Chapman, 1968 p. 13). His publications span the period 1841 to 1869 and added materially to knowledge of algae of cold waters of the Arctic seas. Some of his specimens are stored in the Ulster Museum Herbarium (BEL) catalogued: F1171; F10281–F10318. In 1883 Frans Reinhold Kjellman, professor of botany at Uppsala University, published "The Algae of the Arctic Sea". He divided the "Arctic Sea" into different regions which surround the North Pole (Kjellman, 1883). Further research work on the marine algae of the world included: Charles Lewis Anderson (1827–1910) who collaborated with William Gilson Farlow and with Professor Daniel Cady Eaton to produce on the first exsiccatae of North American Algae (Papenfuss, 1976). Edward Morell Holmes (1843–1930), was an expert on seaweeds, mosses, liverworts and lichens, specimens were sent to him from all over the British Isles, as well as from Norway, Sweden, Florida, Tasmania, France, Cape of Good Hope, Ceylon and Australia. He also exchanged specimens (Furley, 1989). and some are in the herbarium of the Ulster Museum (BEL).
https://en.wikipedia.org/wiki?curid=7587938
1,746,391
999,450
When the compacted mass of the inert core exceeds the Chandrasekhar limit of about , electron degeneracy is no longer sufficient to counter the gravitational compression. A cataclysmic implosion of the core takes place within seconds. Without the support of the now-imploded inner core, the outer core collapses inwards under gravity and reaches a velocity of up to 23% of the speed of light, and the sudden compression increases the temperature of the inner core to up to 100 billion kelvins. Neutrons and neutrinos are formed via reversed beta-decay, releasing about 10 joules (100 foe) in a ten-second burst. The collapse of the inner core is halted by neutron degeneracy, causing the implosion to rebound and bounce outward. The energy of this expanding shock wave is sufficient to disrupt the overlying stellar material and accelerate it to escape velocity, forming a supernova explosion. The shock wave and extremely high temperature and pressure rapidly dissipate but are present for long enough to allow for a brief period during which the
https://en.wikipedia.org/wiki?curid=11009033
998,932
94,576
Snakes are closely related to lizards, having branched off from a common ancestral lineage during the Cretaceous period, and they share many of the same features. The skeleton consists of a skull, a hyoid bone, spine and ribs though a few species retain a vestige of the pelvis and rear limbs in the form of pelvic spurs. The bar under the second fenestra has also been lost and the jaws have extreme flexibility allowing the snake to swallow its prey whole. Snakes lack moveable eyelids, the eyes being covered by transparent "spectacle" scales. They do not have eardrums but can detect ground vibrations through the bones of their skull. Their forked tongues are used as organs of taste and smell and some species have sensory pits on their heads enabling them to locate warm-blooded prey.
https://en.wikipedia.org/wiki?curid=674
94,535
1,075,912
The review and "critical appraisal" by Hobart A Reimann and W Paul Havens, published in January 1940, was perhaps the most influential criticism of focal infection theory. Recasting British surgeon William Hunter's landmark pronouncements of 30 years earlier as widely misinterpreted, they summarized that "the removal of infectious dental focal infections in the hope of influencing remote or general symptoms of disease must still be regarded as an experimental procedure not devoid of hazard". By 1940, Louis I Grossman's textbook "Root Canal Therapy" flatly rejected the methods and conclusions made earlier by Weston Price and especially by Edward Rosenow. Amid improvements in endodontics and medicine, including release of sulfa drugs and antibiotics, a backlash to the "orgy" of tooth extractions and tonsillectomies ensued.
https://en.wikipedia.org/wiki?curid=9510615
1,075,357
1,892,364
In 1924, the "Regia Marina" (Italian Royal Navy) issued a requirement for a replacement for its Macchi M.7"ter" flying boat fighter. To compete with the SIAI S.58 for a production order as the replacement, Macchi company designer Mario Castoldi (1888-1968) developed the M.26. It was a wooden, single-seat, single-bay biplane armed with two fixed, forward-firing 7.7-millimeter (0.303-inch) Vickers machine guns. It had plywood and fabric skinning, and its wings were of equal span and unstaggered. The M.26s engine, a 221-kilowatt (296-brake horsepower) Hispano-Suiza HS 42 V8 driving a pusher propeller, was mounted on struts above the hull and below the upper wing. For an aircraft of its type, its aerodynamic design was very clean.
https://en.wikipedia.org/wiki?curid=26020831
1,891,281
1,284,667
At the beginning of the 21st century, the PNRI's Radiological Emergency Preparedness and Response Plan was approved in 2000. In 2001, the first positron emission tomography (PET) was licensed by the PNRI at St. Luke's Medical Center. Between 2001 and 2005, a polyvinylpyrrolidone carrageenan hydrogel dressing for burns and wounds was developed by the PNRI as well as the development of the mutant ornamental plants Kamuning dwarf mutant (Murraya 'Ibarra Santos'), Dracaena 'Marea' and Cordyline 'Medina'. In 2005, the PNRI was designated as the collaborating center for studies on harmful algal blooms by the IAEA. The next year, the Philippine Research Reactor at the PNRI was chosen by the IAEA to be the training platform to demonstrate the decommissioning process technique under the Research Reactor Decommissioning Demonstration Project (R2D2P). The 9th Forum for Nuclear Cooperation in Asia Ministerial Level Meeting was hosted in the Philippines in 2008, the same year of the 50th Founding Anniversary of the Philippine Nuclear Research Institute.
https://en.wikipedia.org/wiki?curid=54497735
1,283,968
472,219
Much-anticipated after a several-years-long wait, "Cyberpunk 2077" received considerable praise for its narrative, setting, and graphics, although several of its gameplay elements received mixed reviews. After viewing a pre-release trailer, however, writer William Gibson, credited with pioneering the cyberpunk genre, remarked that the game seemed like ""GTA" skinned-over with a generic 80s retro-future", although he later expressed an affinity toward the first gameplay demo. Its themes and representation of transgender characters also received scrutiny. Further, "Cyberpunk 2077" was widely criticized for bugs, particularly in the console versions which suffered from severe performance issues. (Sony removed the game from the PlayStation Store soon after release.) Later, CD Projekt would become subject to investigations and class-action lawsuits for their perceived attempts in downplaying the severity of the game's technical issues prior to its release.
https://en.wikipedia.org/wiki?curid=32408640
471,983
1,857,174
"Venturia effusa" over-winters in plant debris, such as shucks, leaf petioles and stems, as well as in lesions on the tree from the previous season. It survives as stromata, a tight mat of fungal material that lives within tissue. In the spring time, hyphae in the stromata germinate to produce solitary or loosely fasciculate conidiophores which produce conidia (asexual spores) in simple or branched chains. Conidia are dentical-like and have unthickened walls. Conidia are moved by wind and water to a susceptible host, but they cannot germinate and infect without several hours of sustained wet weather. Afternoon rain storms and wet conditions overnight provide ideal conditions for germination. Conidia germinate and form germ tubes which enter the host through stomata or through the cuticle, before forming intramatrical mycelia which moves through the plant and establishes the new infection. These mycelia give rise to further conidiophores and conidia, allowing for many infection cycles in each season.
https://en.wikipedia.org/wiki?curid=41075065
1,856,106
1,724,455
Nonetheless, there were still concerns about the adequacy of the facility and about the wisdom of maintaining the entire collection of lunar samples in a single facility that might be vulnerable to natural disasters (especially the hurricanes to which Houston is vulnerable) and military actions. The collection was divided among multiple vaults at the Johnson Space Center while a vault was built in an empty ammunition bunker at Brooks Air Force Base in San Antonio, Texas, as second-site storage. Fourteen percent of the lunar sample collection was moved to this bunker in 1976, transported secretly at night with a police escort in a specially modified passenger bus. This smaller collection of materials remained at Brooks until 2002, when the base was transitioned from military control as part of the Base Realignment and Closure process. The second-site lunar materials were then moved to the White Sands Test Facility, where a new, smaller facility was built inside an existing secure building to house the samples. Of the of lunar samples returned by the Apollo program, are currently stored at White Sands.
https://en.wikipedia.org/wiki?curid=36263769
1,723,485
565,470
Not only is price no longer needed to gain critical economic feedback, but the information price communicates is long delayed and incomplete in terms of economic measures required to dramatically increase efficiency. Mechanisms related networked digital feedback systems make it possible to efficiently monitor shifting consumer preference, demand, supply and labor value, virtually in real time. Moreover, it can also be used to observe other technical processes price cannot, such as shifts in production protocols, allocation, recycling means, and so on. As of February 2018, it is now possible to track trillions of economic interactions related to the supply chain and consumer behavior by way of sensors and digital relay as seen with the advent of Amazon Go.
https://en.wikipedia.org/wiki?curid=44379754
565,180
190,896
To the north of Africa the Tethys Sea continued to narrow. Broad shallow seas advanced across central North America (the Western Interior Seaway) and Europe, then receded late in the period, leaving thick marine deposits sandwiched between coal beds. At the peak of the Cretaceous transgression, one-third of Earth's present land area was submerged. The Cretaceous is justly famous for its chalk; indeed, more chalk formed in the Cretaceous than in any other period in the Phanerozoic. Mid-ocean ridge activity—or rather, the circulation of seawater through the enlarged ridges—enriched the oceans in calcium; this made the oceans more saturated, as well as increased the bioavailability of the element for calcareous nanoplankton. These widespread carbonates and other sedimentary deposits make the Cretaceous rock record especially fine. Famous formations from North America include the rich marine fossils of Kansas's Smoky Hill Chalk Member and the terrestrial fauna of the late Cretaceous Hell Creek Formation. Other important Cretaceous exposures occur in Europe and China. In the area that is now India, massive lava beds called the Deccan Traps were laid down in the very late Cretaceous and early Paleocene.
https://en.wikipedia.org/wiki?curid=11603215
190,797
1,991,322
A photomultiplier tube, which was made opaque by the evaporation of a coating of aluminum on the front surface, was designed to measure the light energy emitted as a micrometeorite impinged upon the surface and to relate this measured energy to the ambient kinetic energy of the particle. The maximum sensitivity of the sensor to light pulses was of the order of 1.E-14 erg, which means it could detect impacts of particles of 1.E-14 g having a velocity of 20 km/s. The experiment was also intended to determine the erosive effects of micrometeorite impact. As measurable micrometeorites impacted, a portion of the aluminum coating was removed. The photomultiplier then registered the amount of light energy transmitted through the layer from known extraneous light sources. When these data were combined with data on the energy of micrometeorite impacts, the measurement of the erosive effects of a single micrometeorite was obtained. Data from the photomultiplier were received for the life of the battery pack. The light flash detector, however, was also triggered by protons (E>40 MeV), and the data had to be discarded.
https://en.wikipedia.org/wiki?curid=5793923
1,990,179
1,290,732
Due to more accurate diagnosis by MRI and improved management of symptoms with medical treatments including gastrostomy (feeding tubes), suction machines, seizure medications, tracheostomy, and management of secretions, more children are surviving into adulthood and have a better quality of life. Development of skills and core strength may be improved with physical therapy, but improvement is limited by the severity of the condition. Some children may be able to sit up, crawl, or say a few basic words, but most are severely developmentally delayed and remain at the level of infants for their lifetime. At all ages the most common cause of death is pneumonia, often after multiple cases have weakened the respiratory function.
https://en.wikipedia.org/wiki?curid=892026
1,290,022
24,498
A similar survey, the "State of Agile", is conducted every year starting in 2006 with thousands of participants from around the software development community. This tracks trends on the perceived benefits of agility, lessons learned, and good practices. Each survey has reported increasing numbers saying that agile software development helps them deliver software faster; improves their ability to manage changing customer priorities; and increases their productivity. Surveys have also consistently shown better results with agile product development methods compared to classical project management. In balance, there are reports that some feel that agile development methods are still too young to enable extensive academic research of their success.
https://en.wikipedia.org/wiki?curid=639009
24,489
847,100
Cooperative Education Programs (often referred to as 'co-ops') are similar to internships insofar as they are employment opportunities offered to undergraduate students by engineering employers; however, they are intended to take place concurrently with the students' academic studies. Co-ops are sometimes part-time roles that are ongoing throughout the academic semester, with the student expected to invest between 10 and 30 hours a week depending on the severity of their course load. Some American universities, such as Northeastern University and Drexel University, incorporate co-ops into their students' plan of study in the form of alternating semesters of full-time work and full-time classes; these programs typically take an additional year to complete compared to most 4-year undergraduate engineering programs in the US, even though Northeastern currently has a 4-year undergraduate program that integrates full-time co-ops with full-time studies. Co-ops are considered to be a valuable form of professional development, and may be undertaken by students who are looking to bolster their resumes with hopes of securing better salary offers when looking to secure their first job.
https://en.wikipedia.org/wiki?curid=8081063
846,650
1,199,547
Due to the very high cost of dedicated battery storage, use of electric vehicle batteries both while charging in vehicles (see smart grid), and in stationary grid energy storage arrays as an end-of-life re-use once they no longer hold enough charge for road use, has become the preferred method of load following over dedicated power plants. Such stationary arrays act as a true load-following power plant, and their deployment can "improve the affordability of purchasing such vehicles...Batteries that reach the end of their useful lifespan within the automotive industry can still be considered for other applications as between 70-80% of their original capacity still remains." Such batteries are also often repurposed in home arrays which primarily serve as backup, so can participate much more readily in grid stabilizing. The number of such batteries doing nothing is increasing rapidly, e.g. in Australia where Tesla Powerwall demand rose 30 times after major power outages.
https://en.wikipedia.org/wiki?curid=9028960
1,198,906
1,395,333
Due to the rare nature of peripheral precocious puberty, medications used in the treatment of the condition have only been studied limitedly in small numbers of patients. The largest and sole study employing bicalutamide, an industry-sponsored, phase II, multicenter, international, open-label, single-arm clinical trial known as the icalutamide and nastrozole of estotoxicosis (BATT) study, assessed the combination of 12.5 to 100 mg/day bicalutamide and 0.5 to 1 mg/day anastrozole over a period of 12 months in 14 young boys with . The mean age of the boys was 4 ± 2 years, with a range of 2 to 9 years of age. At baseline, the boys weighed 23 ± 6 kg (52 ± 12 lbs) on average, with a range 17 to 35 kg (37 to 77 lbs). Mean total levels of testosterone in the boys were 277 ± 208 ng/dL at baseline and increased to 523 ± 258 ng/dL at 6 months and 427 ± 243 ng/dL at 12 months. Mean total levels of estradiol in the boys were 3.8 pg/mL at baseline and were relatively unchanged at 6 and 12 months (2.5 pg/mL and 3.5 pg/mL, respectively). The dosage of bicalutamide was initiated at 12.5 mg/day and was then increased, with adjustment as necessary to maintain trough circulating ("R")-bicalutamide concentrations within a target range of 5 to 15 μg/mL. This range is similar to ("R")-bicalutamide levels achieved with approximately 30 to 100 mg/day bicalutamide in adult men with prostate cancer. The mean final dosage of bicalutamide in the boys at 12 months was 60 ± 29 mg/day, with 86% of the boys on either 50 or 100 mg/day bicalutamide. Levels of ("R")-bicalutamide were proportional to dosage and did not appear to be related to the age or weight of the boys.
https://en.wikipedia.org/wiki?curid=55839585
1,394,562
521,066
Recognizing the young Green's above average intellect, and being in a strong financial situation due to his successful bakery, his father enrolled him in March 1801 at Robert Goodacre's Academy in Upper Parliament Street. Robert Goodacre was a well-known science populariser and educator of the time. He published "Essay on the Education of Youth", in which he wrote that he did not "study the interest of the boy but the embryo Man". To a non-specialist, he would have seemed deeply knowledgeable in science and mathematics, but a close inspection of his essay and curriculum revealed that the extent of his mathematical teachings was limited to algebra, trigonometry and logarithms. Thus, Green's later mathematical contributions, which exhibited knowledge of very modern developments in mathematics, could not have resulted from his tenure at the Robert Goodacre Academy. He stayed for only four terms (one school year), and it was speculated by his contemporaries that he had exhausted all they had to teach him.
https://en.wikipedia.org/wiki?curid=243343
520,795
1,645,315
The evolutionary neuroandrogenic (ENA) theory is a conceptual framework which seeks to explain trends in violent and criminal behavior from an evolutionary and biological perspective. It was first proposed by the sociologist Lee Ellis in 2005 in his paper "A Theory Explaining Biological Correlates of Criminality" published in the "European Journal of Criminology". Since then, it has expanded into an interdisciplinary field that intersects biology, psychology, and sociology. The theory rests on two propositions. The first is that in human mating behavior, females prefer males that appear to be more competent providers of resources, and so males exhibit increased competitive behavior than females to obtain access to those resources. The second is that biological mechanisms (namely increased presence of androgens) lead to differential development in the male brain which then mediates the increased competitive behaviors that cause criminality. Though it was originally intended to explain high rates of criminality in young men, it has since been used as a framework to explain gang behavior, terrorism, and the rise of the criminal justice system.
https://en.wikipedia.org/wiki?curid=64765363
1,644,387
1,151,877
Chemokine receptors are G protein-coupled receptors containing 7 transmembrane domains that are found predominantly on the surface of leukocytes, making it one of the rhodopsin-like receptors. Approximately 19 different chemokine receptors have been characterized to date, which share many common structural features; they are composed of about 350 amino acids that are divided into a short and acidic N-terminal end, seven helical transmembrane domains with three intracellular and three extracellular hydrophilic loops, and an intracellular C-terminus containing serine and threonine residues that act as phosphorylation sites during receptor regulation. The first two extracellular loops of chemokine receptors are linked together by disulfide bonding between two conserved cysteine residues. The N-terminal end of a chemokine receptor binds to chemokines and is important for ligand specificity. G-proteins couple to the C-terminal end, which is important for receptor signaling following ligand binding. Although chemokine receptors share high amino acid identity in their primary sequences, they typically bind a limited number of ligands. Chemokine receptors are redundant in their function as more than one chemokine is able to bind to a single receptor.
https://en.wikipedia.org/wiki?curid=6531976
1,151,269
1,015,625
On August 21, 2013, C-Span reported that "Congressional Quarterly" and the Government Accountability Office were indicating the "total estimated program cost now is $400 billion, nearly twice the initial cost". The current investment was documented as approximately $50 billion. The projected $316 billion cost in development and procurement was estimated through 2037 at an average of $12.6 billion per year. These were confirmed by Steve O'Bryan, Vice President of Lockheed Martin, on the same date. In 2013, a RAND study found that during development, the three different versions had drifted so far apart from each other, that having a single base design might have come to be more expensive than if the three services had simply built entirely different aircraft, each tailored to their own requirements. On 10 April 2017 "Bloomberg Businessweek" reported that the total expenditures for the F-35 program would approach $1 trillion.
https://en.wikipedia.org/wiki?curid=54719700
1,015,102
595,422
In the beginning of the Modern Age some Western Europeans believed that royal touch, the touch of the sovereign of England or France, could cure diseases owing to the divine right of sovereigns. Henry VI of England is alleged to have cured a girl with it. Scrofula was therefore also known as "the King's evil". From 1633, the Book of Common Prayer of the Anglican Church contained a ceremony for this, and it was traditional for the monarch (king or queen) to present to the touched person a coin—usually an angel, a gold coin the value of which varied from about 6 shillings to about 10 shillings. In England this practice continued until the early 18th century, and was continued by the Jacobite pretenders until the extinction of the House of Stuart with the death of the pretender Henry IX. King Henry IV of France is reported as often touching and healing as many as 1,500 individuals at a time. Queen Anne touched the infant Samuel Johnson in 1712, but King George I put an end to the practice as being "too Catholic". The kings of France continued the custom until Louis XV stopped it in the 18th century, though it was briefly revived by Charles X in 1825.
https://en.wikipedia.org/wiki?curid=349711
595,117
1,948,704
The Cometary and Interstellar Dust Analyzer (CIDA) was flown on the Stardust mission. In January 2004 Stardust flew by comet comet Wild 2 in a distance of 240 km at a relative speed of 6.1 km/s. In February 2011 Stardust flew by comet Tempel 1 in a distance of 181 km at a speed of 10.9 km/s. During interplanetary cruise between the comet encounters there were favorable phases to analyze the interstellar dust stream that was earlier discovered by the Ulysses space probe. CIDA is a derivative of the impact ionization mass spectrometers flown on the Giotto and Vega 1 and Vega 2 missions. The impact target is peeking out to the side of the spacecraft while the main part of the instrument is protected from high speed dust. It has a sensitive area ~100 cm and a mass resolution "R" ~ 250. Besides the positive ion mode CIDA has also a negative ion mode for better sensitivity for organic molecules. The 75 spectra obtained during the comet flybys indicate a dominance of organic matter; also sulfur ions were detected in one spectrum. In the 45 spectra obtained during the cruise phase favorable for detection of interstellar particles, derivates of quinone were suggested as constituents of the organic component.
https://en.wikipedia.org/wiki?curid=70739650
1,947,586
133,915
In the 1880s the European powers had divided up almost all of Africa (only Ethiopia and Liberia were independent). They ruled until after World War II when forces of nationalism grew much stronger. In the 1950s and 1960s the colonial holdings became independent states. The process was usually peaceful but there were several long bitter bloody civil wars, as in Algeria, Kenya and elsewhere. Across Africa the powerful new force of nationalism drew upon the organizational skills that natives learned in the British and French and other armies in the world wars. It led to organizations that were not controlled by or endorsed by either the colonial powers not the traditional local power structures that were collaborating with the colonial powers. Nationalistic organizations began to challenge both the traditional and the new colonial structures and finally displaced them. Leaders of nationalist movements took control when the European authorities exited; many ruled for decades or until they died off. These structures included political, educational, religious, and other social organizations. In recent decades, many African countries have undergone the triumph and defeat of nationalistic fervor, changing in the process the loci of the centralizing state power and patrimonial state.
https://en.wikipedia.org/wiki?curid=14099
133,861
1,040,968
Clock shifts were found to increase the risk of heart attack by 10 percent, and to disrupt sleep and reduce its efficiency. Effects on seasonal adaptation of the circadian rhythm can be severe and last for weeks. A 2008 study found that although male suicide rates rise in the weeks after the spring transition, the relationship weakened greatly after adjusting for season. A 2008 Swedish study found that heart attacks were significantly more common the first three weekdays after the spring transition, and significantly less common the first weekday after the autumn transition. A 2013 review found little evidence that people slept more on the night after the fall DST shift, even though it is often described as allowing people to sleep for an hour longer than normal. The same review stated that the lost hour of sleep resulting from the spring shift appears to result in sleep loss for at least a week afterward. Even so, a 2014 study conducted in the United States showed that heart attacks decreased significantly after the fall DST shift.
https://en.wikipedia.org/wiki?curid=65801630
1,040,425
1,139,607
Bejan incorporated his constructal law into the second edition of his textbook, "Advanced Engineering Thermodynamics" (1997). Since then he has concentrated on constructal law and its applications. In 2004, he published "Porous and Complex Flow Structures in Modern Technologies". The same year, he and Sylvie Lorente were awarded the Edward F. Obert Award by the ASME for their paper "Thermodynamic Formulation of the Constructal Law" In 2008 he published "Design with Constructal Theory", a textbook for the course he developed with Lorente at Duke. In 2011 the American Society of Mechanical Engineers presented him with an honorary membership. He was cited for "an extraordinary record of creative work, including the unification of thermodynamics and heat transfer; the conceptual development of design as a science that unites all fields; legendary contributions to engineering education; and, since 1996, the discovery and continued development of the constructal law."
https://en.wikipedia.org/wiki?curid=1658929
1,139,014
398,622
The YF-22 was designed to meet USAF requirements for survivability, supercruise, stealth, and ease of maintenance. Because Lockheed's submission was selected as one of the winners, the company, through its Skunk Works division, assumed leadership of the program partners. It would be responsible for the forward cockpit and fuselage, as well as final assembly at Palmdale, California. Meanwhile, the wings and aft fuselage would be built by Boeing, with the center fuselage, weapons bays, tail and landing gear built by General Dynamics. Compared with its Northrop/McDonnell Douglas counterpart, the YF-22 has a more conventional design – its wings have larger control surfaces, such as full-span trailing edge, and, whereas the YF-23 had two tail surfaces, the YF-22 had four, which made it more maneuverable than its counterpart. Two examples of each prototype air vehicle (PAV) were built for the Demonstration-Validation phase: one with General Electric YF120 engines, the other with Pratt & Whitney YF119 engines.
https://en.wikipedia.org/wiki?curid=844110
398,426
1,630,894
The Bjorkman laboratory is interested in immune recognition of viral pathogens in order to develop improved therapeutics against rapidly-evolving viruses such as HIV-1. They use X-ray crystallography, cryo-electron microscopy, and biochemistry to study pathogen envelope glycoproteins and host immune response proteins. Using structural information and alternate antibody architectures, they are engineering antibody-based reagents with increased potency and breadth. They are also investigating the structural correlates of broad and potent antibody-mediated neutralization of HIV-1 to better understand what leads to naturally-occurring broad and potent antibodies. In related work, they use 3D imaging techniques such as electron tomography and fluorescent microscopy to investigate HIV/SIV infection in animal and human tissues.
https://en.wikipedia.org/wiki?curid=4312070
1,629,973
1,646,145
In 1895 Richard Lydekker named a new species of "Bothriospondylus", "B. madagascariensis" based on fossils found before 1894 by Joseph Thomas Last in the Majunga Basin in layers of the Bathonian, the Isalo III Formation. Because there was no real connection with this English form, in 1986 José Fernando Bonaparte named a separate genus. The type species, the only known, is "Lapparentosaurus madagascariensis". The generic name honours Albert-Félix de Lapparent. The holotype assigned by Bonaparte, MAA 91-92, consists of two neural arches. Much more abundant material has been referred, from at least three but perhaps as much as ten individuals from different growth stages. This includes vertebrae and limb elements but no skulls. The species is still lacking a good description and diagnosis. It should not be confused with ?"Bothriospondylus madagascariensis", a distinct taxon now named "Vouivria," or another distinct primitive sauropod from the Isalo III Formation once also referred to as ""Bothriospondylus" madagascarensis", described as the new genus "Narindasaurus" in 2020.
https://en.wikipedia.org/wiki?curid=4590999
1,645,216
269,929
The subunits of the nicotinic receptors belong to a multigene family (16 members in humans) and the assembly of combinations of subunits results in a large number of different receptors (for more information see the Ligand-Gated Ion Channel database). These receptors, with highly variable kinetic, electrophysiological and pharmacological properties, respond to nicotine differently, at very different effective concentrations. This functional diversity allows them to take part in two major types of neurotransmission. Classical synaptic transmission (wiring transmission) involves the release of high concentrations of neurotransmitter, acting on immediately neighboring receptors. In contrast, paracrine transmission (volume transmission) involves neurotransmitters released by axon terminals, which then diffuse through the extra-cellular medium until they reach their receptors, which may be distant. Nicotinic receptors can also be found in different synaptic locations; for example the muscle nicotinic receptor always functions post-synaptically. The neuronal forms of the receptor can be found both post-synaptically (involved in classical neurotransmission) and pre-synaptically where they can influence the release of multiple neurotransmitters.
https://en.wikipedia.org/wiki?curid=743410
269,782
1,903,868
There are two competing theories concerning the origins of volcanism associated with the Marquesas hotspot. Many geoscientists maintain that the area is underlain by a mantle plume which has transported hot material from the lower mantle to the surface, forming the chain of islands and seamounts as the Pacific Plate moved in a north-westerly direction relative to the stationary plume. Radiometric dating of the youngest volcanic rocks suggests that volcanism is still active. Evidence for a plume origin comes mainly from seismic imaging, with large-scale low velocity anomalies being observed from the core-mantle boundary to around 1000 km depth and interpreted as a superplume, and smaller, shallow anomalies interpreted as narrow secondary plumes generated by the superplume. Geochemical analysis of the lavas has also been argued to favour a deep-mantle source, though the extent to which source depth can be determined by lava geochemistry has been disputed.
https://en.wikipedia.org/wiki?curid=17088364
1,902,774
391,515
With over 650 student clubs and organizations on campus, students can readily find friends who share their interests, whether academic, multicultural, political, religious, service, social, or athletic. Campus activities throughout the year include cultural nights, arts performances, and live music at Anteater Plaz. Special events such as Summerlands, Wayzgoose, Shocktoberfest, Soulstice, and Earth Day are held yearly. ASUCI, the university's undergraduate student government, traditionally organizes a world record attempt by the university at the beginning of each academic year. UCI has won Guinness World Records for the largest game of capture the flag six times, with the most recent one in September 2015. In addition, the university has broken the record for the largest game of dodgeball three years straight. They have also won records for largest water pistol fight and largest pillow fight.
https://en.wikipedia.org/wiki?curid=44757
391,320
1,221,248
There is evidence that FTP only come into attention recently due to the latest financial crisis, suggesting that economic constraints (e.g., liquidity issues) lead to the implementation of policies requiring FTP. Before the financial crisis of 2007-2008, the pricing of liquidity costs was deemed immaterial and FTP was used by some financial services (mostly by practitioners) to measure performance internally. Due to the financial crisis, particularly in the late 2000s, requirements for monitoring liquidity in financial institutions are implemented by many regulators, including FTP. The extensive list of regulators that discuss the implementation of FTP in financial institutions included the Basel Committee on Banking Supervision (BCBS), European Parliament and the European Commission (EC), the Committee for European Banking Supervisors (CEBS), the Institute for International Finance (IIF), the Counterparty Risk Management Policy Group III (CRMPGIII), the US Federal Reserve, and the US Federal Deposit Insurance Corporation. Formalized processes include requiring large banks to prepare funds transfer pricing reports and a standardized funds transfer pricing process be implemented across the institution.
https://en.wikipedia.org/wiki?curid=9188656
1,220,590
136,850
About 1000 BC, the Babylonians were the first human civilization known to have kept a consistent record of lunar observations. Clay tablets from that period, which have been found over the territory of present-day Iraq, are inscribed with cuneiform writing recording the times and dates of moonrises and moonsets, the stars that the Moon passed close by, and the time differences between rising and setting of both the Sun and the Moon around the time of the full moon. Babylonian astronomy discovered the three main periods of the Moon's motion and used data analysis to build lunar calendars that extended well into the future. This use of detailed, systematic observations to make predictions based on experimental data may be classified as the first scientific study in human history. However, the Babylonians seem to have lacked any geometrical or physical interpretation of their data, and they could not predict future lunar eclipses (although "warnings" were issued before likely eclipse times).
https://en.wikipedia.org/wiki?curid=5672031
136,795
2,206,316
Upon his return from Paris in 1907, he was named surgical assistant at the clinic led by Leon Sculy Logothetides. After passing an examination and going through a competition, he was hired as a professor at the Iași anatomy department. In 1912, when Ernest Juvara left for the national capital Bucharest, he was named professor of topographic anatomy and clinical surgery. The following year, when the department was split, Tănăsescu remained in the surgery field, and continued as professor until he was obliged to retire in 1940. Both in the Second Balkan War and in World War I, he served as a combat medic. In 1933, as a result of his efforts, the clinical surgery palace at Sfântul Spiridon Hospital was completed, and one of the country's most modern surgery departments moved into the new building. From 1930 to 1935, he was dean of the medical faculty, and was elected rector in 1938, serving until 1940. He died in Bucharest in 1954.
https://en.wikipedia.org/wiki?curid=45350176
2,205,058
112,440
Recognizing IPF in clinical practice can be challenging as symptoms often appear similar to those of more common diseases, such as asthma, chronic obstructive pulmonary disease (COPD) and congestive heart failure (www.diagnoseipf.com). The key issue facing clinicians is whether the presenting history, symptoms (or signs), radiology, and pulmonary function testing are collectively in keeping with the diagnosis of IPF or whether the findings are due to another process. It has long been recognized that patients with ILD related to asbestos exposure, drugs (such as chemotherapeutic agents or nitrofurantoin), rheumatoid arthritis and scleroderma/systemic sclerosis may be difficult to distinguish from IPF. Other differential diagnostic considerations include interstitial lung disease related to mixed connective tissue disease, advanced sarcoidosis, chronic hypersensitivity pneumonitis, pulmonary Langerhan's cell histiocytosis and radiation-induced lung injury.
https://en.wikipedia.org/wiki?curid=8768565
112,395
181,115
The critical engineering principles concerning metal fatigue learned from the Comet 1 program were applied directly to the design of the Boeing 707 (1957) and all subsequent jet airliners. For example, detailed routine inspection processes were introduced, in addition to thorough visual inspections of the outer skin, mandatory structural sampling was routinely conducted by operators; the need to inspect areas not easily viewable by the naked eye led to the introduction of widespread radiography examination in aviation; this also had the advantage of detecting cracks and flaws too small to be seen otherwise. Another visibly noticeable legacy of the Comet disasters is the oval windows on every jet airliner; the metal fatigue cracks that destroyed the Comets were initiated by the small radius corners on the Comet 1's almost square windows. The Comet fuselage was redesigned and the Comet 4 (1958) went on to become a successful airliner, pioneering the first transatlantic jet service, but the program never really recovered from these disasters and was overtaken by the Boeing 707.
https://en.wikipedia.org/wiki?curid=1488888
181,021
226,040
In June 1975, before ASTP, Stafford was offered command of the Air Force Flight Test Center at Edwards AFB. He accepted and assumed the assignment on November 15, 1975. Stafford oversaw both the Air Force and NASA test facilities at Edwards AFB, as well as test ranges in Utah and Nevada. He continued to fly (including foreign aircraft such as the MiG-17 and Panavia Tornado) and was involved in the interview of Viktor Belenko after his defection. Stafford also managed the development of the XST, which would later evolve into the F-117 Nighthawk. In March 1978, he was promoted to lieutenant general and became Deputy Chief of Staff, Research Development and Acquisition in Washington, D.C. While working in Washington, Stafford advocated for the creation of the mobile MX missile, and began developing the Advanced Technology Bomber, the predecessor to the B-2 stealth bomber.
https://en.wikipedia.org/wiki?curid=638571
225,924
1,522,881
The Biomimicry Youth Design Challenge (YDC) is a hands-on, project-based learning experience for middle and high school students. This STEM challenge provides classroom and informal educators with an interdisciplinary framework that combines science, engineering, and environmental literacy with the envisioning of solutions to social and environmental problems. Students identify problems, find inspiration in nature, and engineer designs to mitigate their problems. Students combine biological strategies from multiple organisms into their design. For example, a team of seventh graders wanted to reduce the need for harmful ice-melting products. They developed a design to reduce ice buildup on airplane wings after studying the structures of mint leaves, cicada wings and pine needles.
https://en.wikipedia.org/wiki?curid=28443164
1,522,020
2,195,144
A relatively new field of science, evolutionary toxicology was initially described in the early 1990s as a specialized subset of Ecotoxicology. Though the field itself is a recent development, some of the earliest evolution in Earth's history began as a response to toxic substances in the environment, including heavy metals, ultraviolet light, and microbial toxins. Additionally, evidence of evolutionary responses to contaminants has been documented for over a century, with the first instance of documented pesticide resistance occurring in 1914. Further, Rachel Carson's 1962 environmental treatise Silent Spring argued that consistent use of DDT would lead to decreased effectiveness in reducing mosquito populations.
https://en.wikipedia.org/wiki?curid=65538650
2,193,894
91,319
Archimedes (c. 287–212 BC) of Syracuse, widely considered the greatest mathematician of antiquity, used the method of exhaustion to calculate the area under the arc of a parabola with the summation of an infinite series, in a manner not too dissimilar from modern calculus. He also showed one could use the method of exhaustion to calculate the value of π with as much precision as desired, and obtained the most accurate value of π then known, . He also studied the spiral bearing his name, obtained formulas for the volumes of surfaces of revolution (paraboloid, ellipsoid, hyperboloid), and an ingenious method of exponentiation for expressing very large numbers. While he is also known for his contributions to physics and several advanced mechanical devices, Archimedes himself placed far greater value on the products of his thought and general mathematical principles. He regarded as his greatest achievement his finding of the surface area and volume of a sphere, which he obtained by proving these are 2/3 the surface area and volume of a cylinder circumscribing the sphere.
https://en.wikipedia.org/wiki?curid=14220
91,279
963,512
The procedure consists of an initial surgery, during which the bone is surgically fractured and the ring apparatus is attached. As the patient recovers, the fractured bone begins to grow together. While the bone is growing, the frame is adjusted by means of turning the nuts, thus increasing the space between two rings. As the rings are connected to opposite sides of the fracture, this adjustment, done four times a day, moves the now-healing fracture apart by approximately one millimeter per day. The incremental daily increases result in a considerable lengthening of the limb over time. Once the lengthening phase is complete, the apparatus stays on the limb for a consolidation period. The patient is able to fully weight bear on the Ilizarov frame, using crutches initially and pain is lessened. Once healing is complete, a second surgery is necessary to remove the ring apparatus. The result is a limb that is significantly longer. Additional surgery may be necessary, in the case of leg lengthening, to lengthen the Achilles tendon to accommodate the longer bone length. The major advantage of this procedure is that because the apparatus provides complete support while the bone is recovering the patient can remain active aiding recovery.
https://en.wikipedia.org/wiki?curid=2140351
963,003
139,939
The broadcast flag concept was developed by Fox Broadcasting in 2001, and was supported by the MPAA and the U.S. Federal Communications Commission (FCC). A ruling in May 2005 by a United States courts of appeals held that the FCC lacked authority to impose it on the US TV industry. It required that all HDTVs obey a stream specification determining whether a stream can be recorded. This could block instances of fair use, such as time-shifting. It achieved more success elsewhere when it was adopted by the Digital Video Broadcasting Project (DVB), a consortium of about 250 broadcasters, manufacturers, network operators, software developers, and regulatory bodies from about 35 countries involved in attempting to develop new digital TV standards.
https://en.wikipedia.org/wiki?curid=18938226
139,882
623,840
With the affirmation of the Romanian nation, in the context of the European revolutions of 1848, was explicitly questioned the issue on university in national language. At the express request of the Romanians, in 1870, József Eötvös, then Minister of Education, proposes the creation in Kolozsvár of a university teaching in Hungarian, Romanian and German, idea also welcomed by the Romanian elite. Meanwhile, Eötvös dies, and in 1872, Franz Joseph I legislates the establishment of the Hungarian Royal University of Kolozsvár in Hungarian only, which caused dissatisfaction among Romanians. After the oath, on 20 December 1872, 258 students start courses. There were created four distinct faculties: Faculty of Law and State Sciences, Faculty of Medicine, Faculty of Philosophy, Letters and History, Faculty of Mathematics and Natural Sciences. The faculties were equal to each other and enjoyed internal autonomy. The first rector was Professor Áron Berde from the Faculty of Law, specialist in economics and finance. Besides the four faculties is created a Pedagogical Institute, for training secondary school teachers. From 1895 the girls had the right to learn at university.
https://en.wikipedia.org/wiki?curid=2912735
623,508
1,002,899
The dawn redwood is frequently encountered across the UK. Growth has been fastest in the south-east, but it is believed the tree may have a longer future in the more humid western regions. The first dawn redwood to be planted out in the UK was at the Cambridge University Botanic Garden. The seed was not from the Arnold expedition, but came to Cambridge directly. The Botanic Garden’s Annual Report for 1949 declares: ‘Seeds of Metasequoia glyptostroboides, sent by Dr Silow from China to Professor F T Brooks, germinated freely. Three of the seedlings have been planted out: one in the Yard at the back of the Range and two beside the Pond (now called the Lake).' The tree on the south-west side of the Lake is still living, as at July 2019. Seed distributed in the 1940s to Hillier Gardens near Winchester, UK, have thrived and are now the emblem of the gardens. The TROBI Champions are at Woking Park, Surrey: 22 m height by 144 cm d.b.h, Clare College, Cambridge: 21 m × 129 cm (planted 1949), and Wayford Woods, Somerset: 32 m × 99 cm. Several cultivars are available providing a range of different foliage colours and textures. The cultivar ‘Golden Oji’ has gained the Royal Horticultural Society’s Award of Garden Merit.
https://en.wikipedia.org/wiki?curid=334782
1,002,381
595,807
In the report released to ABC News, FDA scientists concluded that DHA does not stop at the outer dead layers of skin. They wrote: "The fate of DHA remaining in skin is an important issue, since high DHA skin levels were found." They added that tests they performed revealed that much of the DHA applied to skin actually ended up in the living layers of skin. They concluded: "This leaves about 11 percent of the applied DHA dose absorbed remaining in the [living] epidermis and dermis." A toxicologist and lung specialist at the University of Pennsylvania's Perelman School of Medicine (Dr. Rey Panettieri) has commented, "The reason I'm concerned is the deposition of the tanning agents into the lungs could really facilitate or aid systemic absorption -- that is, getting into the bloodstream. These compounds in some cells could actually promote the development of cancers or malignancies, and if that's the case then we need to be wary of them."
https://en.wikipedia.org/wiki?curid=558545
595,502
1,015,632
In November 2009, Jon Schreiber, head of F-35 international affairs program for the Pentagon, said that the U.S. will not share the software code for the F-35 with its allies. The US plans to set up a reprogramming facility that will develop JSF software and distribute it to allies. In 2014 in order to deal with capacity issues in the creation of mission data packages at the Air Combat Command reprogramming lab at Eglin Air Force Base, Fla., plans were announced to open additional mission data labs to customize mission data packages with terrain and enemy threat information for different regions and partner nation needs. DARPA is working on the Adaptive Radar Countermeasures (ARC) project to provide protection in real time for previously unknown threat radars.
https://en.wikipedia.org/wiki?curid=54719700
1,015,109
142,425
An expansion of the Genetic Algorithm accessible problem domain can be obtained through more complex encoding of the solution pools by concatenating several types of heterogenously encoded genes into one chromosome. This particular approach allows for solving optimization problems that require vastly disparate definition domains for the problem parameters. For instance, in problems of cascaded controller tuning, the internal loop controller structure can belong to a conventional regulator of three parameters, whereas the external loop could implement a linguistic controller (such as a fuzzy system) which has an inherently different description. This particular form of encoding requires a specialized crossover mechanism that recombines the chromosome by section, and it is a useful tool for the modelling and simulation of complex adaptive systems, especially evolution processes.
https://en.wikipedia.org/wiki?curid=40254
142,367
357,275
In Europe, evidence of constructed dwelling structures—classified as firm surface huts with solid foundations built in areas mostly sheltered from the weather—has been recorded since the Cromerian Interglacial, the earliest example a 700,000-year-old stone foundation from Přezletice, Czech Republic. This dwelling probably featured a vaulted roof made of thick branches or thin poles, supported by a foundation of big rocks and earth. Other such dwellings have been postulated to have existed during or following the Holstein Interglacial (which began 424,000 years ago) in Bilzingsleben, Germany; Terra Amata, France; and Fermanville and Saint-Germain-des-Vaux in Normandy. These were probably occupied during the winter, and, averaging only in area, they were probably only used for sleeping in, while other activities (including firekeeping) seem to have been done outside. Less-permanent tent technology may have been present in Europe in the Lower Paleolithic.
https://en.wikipedia.org/wiki?curid=442638
357,089
567,230
The project was completed in 2017 and achieved an efficiency of 76% for the prototype with an indicated growth potential of 80% for industrial scale plants. The operating conditions of the CO-methanation are a gas pressure of 10 - 30 bar, a SNG production of 1 - 5.4 m/h (NTP) and a reactant conversion that produces SNG with H < 2 vol.-% resp. CH > 97 vol.-%. Thus, the generated substitute natural gas can be injected in the entire German natural gas network without limitations. As a cooling medium for the exothermic reaction boiling water is used at up to 300 °C, which corresponds to a water vapour pressure of about 87 bar. The SOEC works with a pressure of up to 15 bar, steam conversions of up to 90% and generates one standard cubic meter of hydrogen from 3.37 kWh of electricity as feed for the methanation.
https://en.wikipedia.org/wiki?curid=39071843
566,940
229,049
Published in September 2006, NIST SP 800-92 Guide to Computer Security Log Management is the primary document used in the NIST Risk Management Framework for what should be auditable. While not definitive or exhaustive as there have been significant changes in technology since 2006, this guidance anticipated industry growth as the document is still relevant. This document pre-dates many modern SIEM technologies that are well known today, as evident by no reference to the term "SIEM. NIST is not the only guidance for a regulatory mechanism for auditing and monitoring that are encouraged to use SIEM solutions instead of de-centralized individual host-based checks. NIST identifies several public and private entities with their logging guidance that may enforce its requirements; Federal Information Security Management Act of 2002 (FISMA), Gramm-Leach-Bliley Act (GLBA), Health Insurance Portability and Accountability Act of 1996 (HIPAA), Sarbanes-Oxley Act (SOX) of 2002, Payment Card Industry Data Security Standard (PCI DSS), and International Organization for Standardization (ISO) 27001. It is not uncommon for NIST documents to be referenced in public and private organizations.
https://en.wikipedia.org/wiki?curid=27262733
228,932
1,689,037
Neuroepithelial cells (NEC) are thought to be neuron-like chemoreceptor cells because they rely on membrane potential changes for the release of neurotransmitters and signal transmission onto nearby cells. Once NEC of the zebrafish gills come in contact with either environmental or aortic hypoxia, an outward K "leak" channel is inhibited. It remains unclear how these K channels are inhibited by a shortage of oxygen because there are yet to be any known direct binding sites for "a lack of oxygen", only whole cell and ion channel responses to hypoxia. K "leak" channels are two-pore-domain ion channels that are open at the resting membrane potential of the cell and play a major role in setting the equilibrium resting membrane potential of the cell. Once this "leak" channel is closed, the K is no longer able to freely flow out of the cell, and the membrane potential of the NEC increases; the cell becomes depolarized. This depolarization causes voltage-gated Ca channels to open, and for extracellular Ca to flow down its concentration gradient into the cell causing the intracellular Ca concentration to greatly increase. Once the Ca is inside the cell, it binds to the vesicle release machinery and facilitates binding of the t-snare complex on the vesicle to the s-snare complex on the NEC cell membrane which initiates the release of neurotransmitters into the synaptic cleft.
https://en.wikipedia.org/wiki?curid=33949413
1,688,091
445,629
In 1937, he became a member of the newly established Reich Research Council that supported "research projects" of the SS, including experiments on prisoners in the concentration camps. As head of the General Medicine Branch of the RRC, it was alleged that he personally approved the funds which financed August Hirt's experiments with mustard gas on prisoners at Natzweiler concentration camp from 1941 until 1944. However, he was one of the few university professors who publicly spoke out against the NS-Euthanasia program T4. In 1942, he became Surgeon General to the army. In mid-September 1943, Sauerbruch was awarded the Knight's Cross of the War Merit Cross with Swords. On 12 October 1945, he was charged by the Allies for having contributed to the Nazi dictatorship, but acquitted for lack of evidence.
https://en.wikipedia.org/wiki?curid=476273
445,413
1,714,956
Steve Farrington, the head coach at Lower Columbia College in Longview for over a decade, was hired to replace Brayton in late June 1994. Originally from Newport, Oregon, he was a three-sport athlete at Eastern Washington in Cheney in the early 1970s; four years each of football and baseball and a year of basketball. Farrington's first season, 1995, was the third season of NCAA sanctions that had been imposed on the program for rules violations. The Cougars were in conference and won the Pac-10 North, but were swept in the Pac-10 finals in Los Angeles by South champion USC, 9–6 and 4–0. Their overall record of 28–30 () in 1995 was the first losing record at WSU since 1957, and the Cougars did not receive an at-large bid to the NCAA Tournament. Pac-10 champion USC advanced to the College World Series and finished as runner-up.
https://en.wikipedia.org/wiki?curid=30079048
1,713,989
595,840
In 2013–2014, the Planning and Budgeting Committee's budget for the entire I-CORE programme amounted to NIS 87.9 million, equivalent to about 1% of the total for higher education that year. This budget appears to be insufficient to create the critical mass of researchers in various academic fields and thus falls short of the programme's objective. The level of government support for the centres of excellence has grown each year since 2011 as new centres have been established and is expected to reach NIS 93.6 million by 2015–2016 before dropping to 33.7 million in 2017–2018. According to the funding model, government support should represent one-third of all funding, another third being funded by the participating universities and the remaining third by donors or investors.
https://en.wikipedia.org/wiki?curid=397525
595,535
933,486
One of the main use of thickeners is in the paint and printing industries, which depend heavily on rheology modifiers, to prevent pigments settling to the bottom of the can, yielding inconsistent results. Water based formulas would be nearly impossible with the exception of India ink and the few other water-soluble pigments, but these would have very little coverage and at best would stain wood slightly. All modern paints and inks will have some pigment added at the factory for opacity and to control the specularity of the finish, from matte to high gloss, dependent on thickener used, but more so on the size of the particles added as opacity modifier. Particle sizes of 1 µm and below will be the limit of high gloss, probably confined to luxury automotive coatings, and about 100 µm particulates will make a bumpy surface on the microscopic scale, which scatters light and makes the surface appear matte.
https://en.wikipedia.org/wiki?curid=2518458
932,994
572,930
When a receptor within the body senses a stressor, a signal is sent to the anterior hypothalamus. At the reception of the signal, corticotrophin-releasing factor (CRF) acts on the anterior pituitary. The anterior pituitary in turn releases adrenocorticotropic hormone (ACTH). ACTH induces the release of corticosteroids and aldosterone from the adrenal gland. These substances are the main factors responsible for the stress response in humans. Cortisol for example stimulates the mobilization of free fatty acids and proteins and the breakdown of amino acids, and increases serum glucose level and blood pressure, among other effects. On the other hand, aldosterone is responsible for water retention associated with stress. As a result of cells retaining sodium and eliminating potassium, water is retained and blood pressure is increased by increasing the blood volume.
https://en.wikipedia.org/wiki?curid=31110904
572,636
835,767
When indeterminacy problems arose because the brain is physically isomorphic to multiple structures of the external world, it was urged that we use a pragmatic approach to resolve the problem. Another approach argues that we should use the pragmatic theory of truth from the beginning to decide whether certain neural circuits store true information about the external world. Pragmatism was founded by Charles Sanders Peirce and William James. Pragmatism was later refined by our understanding of the philosophy of science. According to pragmatism, to say that General Relativity is true is to say that the theory makes more accurate predictions about world events compared to other theories (Newtonian mechanics, Aristotle's physics, etc.). Thus within pragmatism, in what sense can we say that information in brain-A is true while that does not hold about information in brain-B regarding the external world. Assume computer circuits lack intentionality and do not store information using propositions, then in what sense can we say that computer-A has true information while computer-B lacks true information about the external world. If the computers were instantiated in autonomous cars, we can test whether computer-A or computer-B successfully completed a cross-country road trip. For instance, if computer-A succeeded at the task while computer-B failed, the pragmatist can say that computer-A holds true information about the external world. The reason is that the information in computer-A allows it to make more accurate predictions (relative to computer-B) about the external world and helps it successfully move around in the environment. Similarly, if brain-A has information that enables the biological organism to make more accurate predictions about the external world and helps the biological organism successfully move around in the environment then we can say that brain-A has true information about the external world (relative to brain-B). Although not advocates of eliminativism, John Shook and Tibor Solymosi argue that pragmatism is a promising program for understanding advancements in neuroscience and integrating that into a philosophical picture of the world.
https://en.wikipedia.org/wiki?curid=350945
835,318
832,300
After this step, there are two existing measures of the radiant flux measures of the source formula_6 (uniform distribution, by initialization) and the target formula_7 (computed in previous step). What remains to compute is the mapping from the source to target. In order to do this, there are several quantities to be defined. Firstly, two light intensities evaluated by probabilities: formula_8 (light intensity evaluated by dividing formula_6 by the flux of the union region between formula_6 and formula_7), formula_12 (light intensity evaluated by dividing formula_7 by the flux of the union region between formula_6 and formula_7) are defined. Secondly, the source mesh is generated as multiple sites formula_16, which is later being deformed. Next, a power diagram formula_17 (a set of formula_18 power cells) is defined on this set of sites formula_19 weighted by a weight vector formula_20. Finally, the goal is to decide whether which power cells are going to be move. Considering all formula_21 vertices on the surface, finding the minimizer formula_22 of the following convex function will produce the matched power diagram for the target:
https://en.wikipedia.org/wiki?curid=3498698
831,851
1,505,645
Estimation in biology/animal breeding using standard ANOVA/REML methods of variance components such as heritability, shared-environment, maternal effects etc. typically requires individuals of known relatedness such as parent/child; this is often unavailable or the pedigree data unreliable, leading to inability to apply the methods or requiring strict laboratory control of all breeding (which threatens the external validity of all estimates), and several authors have noted that relatedness could be measured directly from genetic markers (and if individuals were reasonably related, economically few markers would have to be obtained for statistical power), leading Kermit Ritland to propose in 1996 that directly measured pairwise relatedness could be compared to pairwise phenotype measurements (Ritland 1996, "A Marker-based Method for Inferences About Quantitative Inheritance in Natural Populations").
https://en.wikipedia.org/wiki?curid=50613151
1,504,799
333,199
Exhaust gas from a spark ignition engine consists of the following: nitrogen 70 to 75% (by volume), water vapor 10 to 12%, carbon dioxide 10 to 13.5%, hydrogen 0.5 to 2%, oxygen 0.2 to 2%, carbon monoxide: 0.1 to 6%, unburnt hydrocarbons and partial oxidation products (e.g. aldehydes) 0.5 to 1%, nitrogen monoxide 0.01 to 0.4%, nitrous oxide <100 ppm, sulfur dioxide 15 to 60 ppm, traces of other compounds such as fuel additives and lubricants, also halogen and metallic compounds, and other particles. Carbon monoxide is highly toxic, and can cause carbon monoxide poisoning, so it is important to avoid any build-up of the gas in a confined space. Catalytic converters can reduce toxic emissions, but not eliminate them. Also, resulting greenhouse gas emissions, chiefly carbon dioxide, from the widespread use of engines in the modern industrialized world is contributing to the global greenhouse effect – a primary concern regarding global warming.
https://en.wikipedia.org/wiki?curid=9640
333,021
838,120
No specific treatment for CADASIL is available. While most treatments for CADASIL patients' symptoms – including migraine and stroke – are similar to those without CADASIL, these treatments are almost exclusively empiric, as data regarding their benefit to CADASIL patients are limited. Antiplatelet agents such as aspirin, dipyridamole, or clopidogrel might help prevent strokes; however, anticoagulation may be inadvisable given the propensity for microhemorrhages. Control of high blood pressure is particularly important in CADASIL patients. Short-term use of atorvastatin, a statin-type cholesterol-lowering medication, has not been shown to be beneficial in CADASIL patients' cerebral hemodynamic parameters, although treatment of comorbidities such as high cholesterol is recommended. Stopping oral contraceptive pills may be recommended. Some authors advise against the use of triptan medications for migraine treatment, given their vasoconstrictive effects, although this sentiment is not universal. In this regard, the advent of the "Ditans" such as Lasmiditan, lacking vasoconstrictive effect, and the "Gepants" such as Ubrogepant and Rimegepant, are attractive alternatives, albeit not yet field-tested in this condition. As with other individuals, people with CADASIL should be encouraged to quit smoking.
https://en.wikipedia.org/wiki?curid=1368247
837,671
1,521,136
One very popular example of mutually beneficial microbial interactions involves the production of siderophores. Siderophores are iron-scavenging molecules produced by many microbial taxa, including bacteria and fungi. These molecules are known as chelating agents and play an important role in facilitating the uptake and metabolism of iron in the environment, as it normally exists in an insoluble form. In order for bacteria to access this limiting factor, cells will manufacture these molecules, and then secrete them into the extracellular space. Once released, the siderophores will sequester the iron, and form a complex, which is recognized by bacterial cell receptors. It can then be transported into the cell and reduced, making the iron metabolically accessible for the bacteria. The production of siderophores is often used as an example of mutualism as the compounds are not constricted to individual usage. As long as the organism possesses a receptor for the siderophore-Fe (III) complex, they can be taken up and utilized.
https://en.wikipedia.org/wiki?curid=31009191
1,520,275
1,096,424
"Orientia tsutsugamushi" is naturally maintained in the mite population by transmission from female to its eggs (transovarial transmission), and from the eggs to larvae and then to adults (transtadial transmission). The mite larvae, called chiggers, are natural ectoparasites of rodents. Humans get infected upon accidental contact with infected chiggers. A scar-like scab called eschar is a good indicator of infection, but is not ubiquitous. The bacterium is endemic to the so-called Tsutsugamushi Triangle, a region covering the Russian Far East in the north, Japan in the east, northern Australia in the south, and Afghanistan in the west. One million infections are estimated to occur annually. Antibiotics such as azithromycin and doxycycline are the main prescription drugs; chloramphenicol and tetracyclin are also effective. Diagnosis of the infection is difficult and requires laborious techniques such as Weil–Felix test, rapid immunochromatographic test, immunofluorescence assays, and polymerase chain reaction. There is no vaccine for the infection.
https://en.wikipedia.org/wiki?curid=12300557
1,095,864
1,653,134
APS was founded in 1988 by a group of researchers and scientifically-oriented practitioners who were interested in advancing scientific psychology and its representation at the national and international level. This group felt that the American Psychological Association (APA) was not adequately supporting scientific research because it focused on the practitioner/clinician side of psychology, and had effectively "become a guild". Tensions between the scientists and the practitioners escalated. The two groups had contrasting beliefs about such divisive issues as scientific versus human values, determinism versus indeterminism, objectivism versus intuitionism, laboratory investigations versus field studies, nomothetic versus idiographic explanations, and elementism versus holism (Simonton, 2000). The founding of the APS was only the most recent instance of long-standing intra-disciplinary tensions that have characterized the field since APA's inception in 1892. Organized psychology has always represented various constituencies, and beginning in the 1970s, there were several attempts to restructure the APA in an effort to mitigate internal tensions and satisfy the needs of a heterogeneous group. In 1987, the Assembly for Scientific and Applied Psychologists (ASAP) formed to support another reorganization effort, but ultimately this reorganization plan was rejected by the APA membership in early 1988. As a consequence, in August 1988, the ASAP became the APS.
https://en.wikipedia.org/wiki?curid=1582764
1,652,202
1,506,444
Devotees of Billy Mitchell, many of whom had served with the 1st Provisional Air Brigade, dominated the faculty of the Tactical School at Maxwell. With their students, they developed a theory of warfare that invoked the superiority of the long-range bomber over all other types of aircraft. Going beyond Mitchell's ideas, they de-emphasized balanced forces and support of ground troops in favor of a doctrine that heavily armed bombers could fight their way to industrial targets in daylight, unescorted by fighters, and with precision bombing (made possible by the introduction of the Norden bombsight in 1931), defeat an enemy by destroying key war production targets, rather than engaging in costly and prolonged ground campaigns aimed at destroying enemy armies. While the theory was based on tenets of strategic airpower developed by Mitchell, Hugh Trenchard, and Giulio Douhet, it rejected the concept of terror-bombing of civil populations as a means of destroying the morale and coercing the will of an enemy state.
https://en.wikipedia.org/wiki?curid=7705538
1,505,598
1,814,027
Whinnery received the B.S. degree in Electrical Engineering from the University of California, Berkeley, in 1937, and the Ph.D. from the same institution in 1948. Throughout World War II, he was active in war training classes, held a part-time lectureship at Union College(1945–46), and earned his doctoral degree while working 6 days a week in microwaves at General Electric, Schenectady, New York, working on problems in waveguide discontinuities, microwave tubes, and applications to radar. He continued his career working on He-Ne laser modulation, the transmission of laser light for optical communication and photo thermal effects. His research evolved to include quantum electronics and opto-electronics as well.
https://en.wikipedia.org/wiki?curid=4875932
1,812,993
919,655
Controversies were raised about the cooperation of Levi-Montalcini with the Italian pharmaceutical concern Fidia. While working for Fidia, she improved the understanding of gangliosides. Beginning in 1975, she supported the drug Cronassial (a particular mixture of gangliosides) produced by Fidia from bovine brain tissue. Independent studies showed that the drug actually could be successful in treatment of intended diseases (peripheral neuropathies). Years later, some patients under treatment with Cronassial reported a severe neurological syndrome (Guillain–Barré syndrome). As per the normal cautionary routine, Germany banned Cronassial in 1983, followed by other countries. Italy prohibited the drug only in 1993; at the same time, an investigation revealed that Fidia paid the Italian Ministry of Health for a quick approval of Cronassial and later paid for pushing use of the drug in treatment of diseases where it had not been tested. Levi-Montalcini's relationship with the company was revealed during the investigation, and she was criticized publicly.
https://en.wikipedia.org/wiki?curid=708064
919,169
1,253,295
It had come at a bad time, as his favourite retreat at Moor Spa was threatened by Lane being put on trial accused of adultery, and five days later Darwin's baby Charles Waring came down with scarlet fever. Darwin's first impression had been that though it meant losing priority, it would be dishonourable for him to be "induced to publish from privately knowing that Wallace is in the field", but Lyell quickly responded strongly urging him to reconsider. Darwin's reply of 25 June was a plea for advice, noting that the points in Wallace's sketch had been fully covered in his own "Essay" of 1844 which Hooker had read in 1847, and that he had also set out his ideas in a letter to Asa Gray in 1857, "so that I could most truly say and prove that I take nothing from Wallace. I should be extremely glad now to publish a sketch of my general views in about a dozen pages or so. But I cannot persuade myself that I can do so honourably... I would far rather burn my whole book than that he or any man should think that I had behaved in a paltry spirit". He added a request that Hooker be informed to give a second opinion.
https://en.wikipedia.org/wiki?curid=1616231
1,252,616