doc_id
int32
18
2.25M
text
stringlengths
245
2.96k
source
stringlengths
38
44
__index_level_0__
int64
18
2.25M
681,079
Curry was born on September 12, 1900, in Millis, Massachusetts, to Samuel Silas Curry and Anna Baright Curry, who ran a school for elocution. He entered Harvard University in 1916 to study medicine but switched to mathematics before graduating in 1920. After two years of graduate work in electrical engineering at MIT, he returned to Harvard to study physics, earning an MA in 1924. Curry's interest in mathematical logic started during this period when he was introduced to the Principia Mathematica, the attempt by Alfred North Whitehead and Bertrand Russell to ground mathematics in symbolic logic. Remaining at Harvard, Curry pursued a Ph.D. in mathematics. While he was directed by George David Birkhoff to work on differential equations, his interests continued to shift to logic. In 1927, while an instructor at Princeton University, he discovered the work of Moses Schönfinkel in combinatory logic. Schönfinkel's work had anticipated much of Curry's own research, and as a consequence, he moved to University of Göttingen where he could work with Heinrich Behmann and Paul Bernays, who were familiar with Schönfinkel's work. Curry was supervised by David Hilbert and worked closely with Bernays, receiving a Ph.D. in 1930 with a dissertation on combinatory logic.
https://en.wikipedia.org/wiki?curid=42182
680,724
1,366,588
Wei et al. have synthesized novel refractory MoNbRe0.5W(TaC)x HEA matrix using vacuum arc melting. XRD patterns showed that the resulting material is mainly composed of a single BCC crystal structure in the base alloy MoNbRe0.5W and a multi-component (MC) type carbide of (Nb, Ta, Mo, W)C to form a lamellar eutectic structure, with the amount of MC phase proportional to TaC addition. TEM analysis showed that the lamellar interface between BCC and MC phase presents a smooth and curvy morphology which exhibits good bonding with no lattice misfit dislocations. As a result, the grain size decreases with increasing TaC addition which improves the yield stress explained by Hall-Petch relationship. The formation of lamellar structure is because at elevated temperature, the decomposition reaction occurs in the MoNbRe0.5W(TaC)x composites:
https://en.wikipedia.org/wiki?curid=1281863
1,365,832
1,142,191
Agrobiodiversity is central to cultural ecosystem services in the form of food biodiversity, which is central to local cuisines worldwide. Agrobiodiversity provides locally appreciated crops and species, and also unique varieties which have cultural significance. For example, ethnic traditional cultures influence the conservation of a wide diversity of rice varieties in China (e.g. red rice, sweet glutinous rices) developed by farmers over thousands of years and used in traditional cultures, rituals and customs. Another example are local food fairs, epitomized by the Slow Food movement, which celebrates local food varieties in order to add value to them, raise awareness about them and ultimately conserve and use them. In addition, some traditional cultures use agrobiodiversity in cultural rituals, e.g. many populations of fruit species (pomelo and mango) are maintained in rural communities specifically for use at the 'Chhath Puja' festival, celebrated in parts of India, Nepal and Mauritius. Home gardens are important as culturally constructed spaces where agrobiodiversity is conserved for a wide variety of social, aesthetic and cultural reasons. Genetic diversity is maintained by resource-poor farmers because of many non-monetary values, including culture and food.
https://en.wikipedia.org/wiki?curid=1166525
1,141,596
1,032,309
From 1947 to 1960, Esaki joined Kawanishi Corporation (now Denso Ten) and Tokyo Tsushin Kogyo (now Sony). Meanwhile, American physicists John Bardeen, Walter Brattain, and William Shockley invented the transistor, which encouraged Esaki to change fields from vacuum tube to heavily-doped germanium and silicon research in Sony. One year later, he recognized that when the PN junction width of germanium is thinned, the current-voltage characteristic is dominated by the influence of the tunnel effect and, as a result, he discovered that as the voltage is increased, the current decreases inversely, indicating negative resistance. This discovery was the first demonstration of solid tunneling effects in physics, and it was the birth of new electronic devices in electronics called Esaki diode (or tunnel diode). He received a doctorate degree from UTokyo due to this breakthrough invention in 1959.
https://en.wikipedia.org/wiki?curid=217832
1,031,773
278,057
PharmD course introduced by the Government of India and Pharmacy Council of India in 2008. The Pharm.D program is a pre-PhD, post-graduate professional doctorate of 6 years which includes 5 years of study and 1 year of internship or residency. It was introduced to improve clinical pharmacy services in India and it is the only pharmacy service which is in direct contact with patient health care system. The first batch of Pharm.D post baccalaureate students graduated in August 2011 and 1st regular batch graduated in June 2014. The Pharm.D degree requires five years of classroom and hospital based didactic study (two years didactic post-baccalaureate course), followed by one year of internship training in hospitals in addition to ongoing practicals and research project. With reference to Clarification on Pharm.D qualification, it is clarified to all universities that Pharm.D is a post graduate degree and passing students can directly register for Ph.D. From 2012. Pharm.D is approved by PCI only and MCI do not recognize this course in India. After the Amendment in August 2019,It is compulsory for hospitals to develop DIC(drug information centre).This DIC will be headed by a Pharm.D Holder.
https://en.wikipedia.org/wiki?curid=707762
277,907
204,031
In 1979 Pratt & Whitney launched its PW2000 engine, claiming 8% better fuel efficiency than the -535C for the PW2037 version. Boeing put Rolls-Royce under pressure to supply a more competitive engine for the 757, and using the more advanced -524 core as a basis, the company produced the thrust RB211-535E4 which entered service in October 1984. While not as efficient as the PW2037, it was more reliable and quieter. Visible differences include a long cowl with no jet nozzle protruding beyond the bypass duct. Partial mixing of hot and cold airflows takes place in the integrated or common nozzle. It was also the first to use a wide chord fan blade which increases efficiency, reduces noise and gives added protection against foreign object damage.
https://en.wikipedia.org/wiki?curid=387227
203,926
209,802
"Gladius" is the general Latin word for "sword". In the Roman Republic, the term "gladius Hispaniensis" (Spanish sword) referred (and still refers) specifically to the short sword, 60 cm (24 inches) long, used by Roman legionaries from the 3rd century BC. It is considered to be the primary weapon used by soldiers in war. Several different better-known designs followed; among collectors and historical reenactors, the two primary kinds of swords are known as the Mainz "gladius", and the Pompeii "gladius" which follows the Mainz type, which had itself followed the Hispaniensis (these names refer to where or how the canonical example was found). More recent archaeological finds have confirmed the appearance of the earlier version, the "gladius Hispaniensis". The legionaries wore their "gladii" on their right hips. In order to craft a sword with the strength and flexibility of the "gladius," blacksmiths used harder steels on the outer layers of the sword while using softer steels in the centre of the blade.
https://en.wikipedia.org/wiki?curid=4959495
209,695
744,728
Traditionally, after injury the shoulder is immobilized for six weeks before rehabilitation. However, the appropriate timing and intensity of therapy are subject to debate. Most surgeons advocate using the sling for at least six weeks, though others advocate early, aggressive rehabilitation. The latter group favors the use of passive motion, which allows an individual to move the shoulder without physical effort. Alternatively, some authorities argue that therapy should be started later and carried out more cautiously. Theoretically, that gives tissues time to heal; though there is conflicting data regarding the benefits of early immobilization. A study of rats suggested that it improved the strength of surgical repairs, while research on rabbits produced contrary evidence. Individuals with a history of rotator cuff injury, particularly those recovering from tears, are prone to reinjury. Rehabbing too soon or too strenuously might increase the risk of retear or failure to heal. However, no research has proven a link between early therapy and the incidence of re-tears. In some studies, those who received earlier and more aggressive therapy reported reduced shoulder pain, less stiffness and better range of motion. Other research has shown that accelerated rehab results in better shoulder function.
https://en.wikipedia.org/wiki?curid=1263226
744,334
1,780,564
Gonzaga suffered their first loss of the season against #13 Illinois on December 8, falling 85–74. Tied at 41 at halftime, the Zags shot 38 percent in the second half after shooting 60 percent in the first half. A free throw by Pangos cut Illinois' lead to 75–71 with 2:51 left in the game. However, the Illini responded with an 80–71 advantage to take control of the game. The Bulldogs recovered from their first loss of the season by beating Kansas State in the annual State Farm Battle in Seattle game, 68–52. The team outscored Kansas State in the paint 38–12 and limited the Wildcats to 33 percent shooting. Olynyk led the team with 20 points, while Bell added 11 points. Four days later, Gonzaga returned home and beat Campbell 74–52. The team finished with 33 points from the bench and 44 in the paint, while scoring 18 points off of 15 turnovers. Karnowski led the Zags with 14 points, while Harris put up 11 points and a career-high six assists.
https://en.wikipedia.org/wiki?curid=36171940
1,779,560
314,997
There were two potentially useful Arrokoth occultations predicted for 2018: one on 16 July and one on 4 August. Neither of these were as good as the three 2017 events. No attempts were made to observe the 16 July 2018 occultation, which took place over the South Atlantic and the Indian Ocean. For the 4 August 2018 event, two teams, consisting of about 50 researchers in total, went to locations in Senegal and Colombia. The event gathered media attention in Senegal, where it was used as an opportunity for science outreach. Despite some stations being affected by bad weather, the event was successfully observed, as reported by the "New Horizons" team. Initially, it was unclear whether a chord on the target had been recorded. On 6 September 2018, NASA confirmed that the star had indeed been seen to dip by at least one observer, providing important information about the size and shape of Arrokoth.
https://en.wikipedia.org/wiki?curid=44163394
314,828
681,900
In 1913, Köhler left Frankfurt for the island of Tenerife in the Canary Islands, where he had been named the director of the Prussian Academy of Sciences anthropoid research station. He worked there for six years, during which he wrote a book on problem solving titled "The Mentality of Apes" (1917). In this research, Köhler observed how chimpanzees solve problems, such as that of retrieving bananas when positioned out of reach. He found that they stacked wooden crates to use as makeshift ladders, in order to retrieve the food. If the bananas were placed on the ground outside of the cage, they used sticks to lengthen the reach of their arms. Köhler concluded that the chimps had not arrived at these methods through trial-and-error (which American psychologist Edward Thorndike had claimed to be the basis of all animal learning, through his law of effect), but rather that they had an insight, in which, having realized the answer, they proceeded to carry it out in a way that was, in Köhler's words, "unwaveringly purposeful."
https://en.wikipedia.org/wiki?curid=286151
681,544
1,602,231
VLDLR is found throughout the body, with particularly high expression in fatty acid tissues due to their high level of triglycerides, VLDLR’s primary ligand. These tissues include those of the heart, skeletal muscle, and adipose layer. In addition, the receptor is found in macrophages, endothelial cells of capillaries, and in the brain, where it has a very different function from that found in the rest of the body. There is a preferred expression for VLDLR type I in the heart, skeletal muscle and brain, as opposed to type II, which is mainly expressed in non-muscular tissues including the cerebrum, cerebellum, kidney, spleen, and aortic endothelial cells. The highest expression of VLDLR is found in the brain. Although VLDLR is found in almost all regions of the brain, its highest expression is restricted to the cortex and cerebellum. Here, the receptor can be found on resting or activated microglia that are associated with senile plaques and cortical neurons, neuroblasts, matrix cells, Cajal-Retzius cells, glioblasts, astrocytes, oligodendrocytes, and region-specific pyramidal neurons. Despite its major role in cholesterol and fatty acid metabolism, VLDLR is not found in the liver. This phenomenon is mainly attributed to the very high levels of LDLR in these areas. In addition, it has been uncovered that this receptor is found, sub-cellularly, in the non-lipid raft sections of cell membranes.
https://en.wikipedia.org/wiki?curid=5402846
1,601,330
184,169
Patients with thalassemia major are more inclined to have a splenectomy. The use of splenectomies have been declining in recent years due to decreased prevalence of hypersplenism in adequately transfused patients. Splenectomy is also associated with increased risk of infections and increased morbidity due to vascular disease, as the spleen is involved in scavenging to rid the body of pathologic or abnormal red blood cells. Patients with hypersplenism are more likely to have a lower amount of healthy blood cells in their body than normal and reveal symptoms of anemia. The different surgical techniques are the open and laparoscopic method. The laparoscopic method requires longer operating time but a shorter recovery period with a smaller and less prominent surgical scar. If it is unnecessary to remove the entire spleen a partial splenectomy may occur; this method preserves some of the immune function while reducing the probability of hypersplenism. Those undergoing splenectomy should receive an appropriate pneumococcal vaccine at least one week (preferably three weeks) before the surgery.
https://en.wikipedia.org/wiki?curid=5309210
184,072
472,190
The dark fantasy-themed RPG "Diablo" was released by Blizzard Entertainment on December 31, 1996, in the midst of a stagnant PC RPG market. "Diablo" is set in the fictional kingdom of Khanduras, in the world of Sanctuary, and has the player take control of a lone hero who battles to rid the world of Diablo, the Lord of Terror. Its development was influenced by "Moria" and "Angband", and "Diablo" resembles a roguelike due to its focus on dungeon crawling, and its procedurally generated levels. Major differences include the commercial quality of the game's graphics, its simplified character development, and its fast, real-time action. A factor in "Diablo"<nowiki>'</nowiki>s success was its support for online, collaborative play over a local area network or through its Battle.net online service. This greatly extended its replay value, though cheating was a problem. While not the first RPG to feature real-time combat, "Diablo"<nowiki>'</nowiki>s effect on the market was significant, a reflection of the changes that took place in other genres following the release of the action titles, "Doom" and "Dune II". It had many imitators, and its formula of simple, fast combat and replayability were used by what were later referred to as ""Diablo" clones", and more broadly "action RPGs".
https://en.wikipedia.org/wiki?curid=32408640
471,954
66,195
Magnussen continued driving for Haas in , again partnering with Grosjean. The opening two rounds of the championship at the Red Bull Ring proved to be difficult for Magnussen and Haas, as the Haas VF-20 was off the pace. In the early stages of the , Magnussen was running third, thanks to a strategy decision at the beginning of the race. Whilst he ultimately fell back throughout the race, he managed to cross the finish line in ninth. After the race, it was determined that Haas had broken rules regarding team radio in telling both drivers to pit at the end of the formation lap, and Magnussen was given a ten-second penalty. This demoted him to tenth, and Magnussen claimed his and Haas' first point of the year. Magnussen suffered a power unit failure at the and was rear-ended in a multi-car accident at the , his fifth retirement in nine races.
https://en.wikipedia.org/wiki?curid=25418449
66,170
564,250
For about a century after its isolation, molybdenum had no industrial use, owing to its relative scarcity, difficulty extracting the pure metal, and the immaturity of the metallurgical subfield. Early molybdenum steel alloys showed great promise in their increased hardness, but efforts were hampered by inconsistent results and a tendency toward brittleness and recrystallization. In 1906, William D. Coolidge filed a patent for rendering molybdenum ductile, leading to its use as a heating element for high-temperature furnaces and as a support for tungsten-filament light bulbs; oxide formation and degradation require that moly be physically sealed or held in an inert gas. In 1913, Frank E. Elmore developed a flotation process to recover molybdenite from ores; flotation remains the primary isolation process. During the first World War, demand for molybdenum spiked; it was used both in armor plating and as a substitute for tungsten in high-speed steels. Some British tanks were protected by 75 mm (3 in) manganese steel plating, but this proved to be ineffective. The manganese steel plates were replaced with 25 mm (1 in) molybdenum-steel plating allowing for higher speed, greater maneuverability, and better protection. After the war, demand plummeted until metallurgical advances allowed extensive development of peacetime applications. In World War II, molybdenum again saw strategic importance as a substitute for tungsten in steel alloys.
https://en.wikipedia.org/wiki?curid=66321
563,960
177,184
By the time the sound barrier was broken, aerodynamicists' understanding of the subsonic and low supersonic flow had matured. The Cold War prompted the design of an ever-evolving line of high-performance aircraft. Computational fluid dynamics began as an effort to solve for flow properties around complex objects and has rapidly grown to the point where entire aircraft can be designed using computer software, with wind-tunnel tests followed by flight tests to confirm the computer predictions. Understanding of supersonic and hypersonic aerodynamics has matured since the 1960s, and the goals of aerodynamicists have shifted from the behaviour of fluid flow to the engineering of a vehicle such that it interacts predictably with the fluid flow. Designing aircraft for supersonic and hypersonic conditions, as well as the desire to improve the aerodynamic efficiency of current aircraft and propulsion systems, continues to motivate new research in aerodynamics, while work continues to be done on important problems in basic aerodynamic theory related to flow turbulence and the existence and uniqueness of analytical solutions to the Navier–Stokes equations.
https://en.wikipedia.org/wiki?curid=2819
177,092
206,713
Charles and Ray channeled their separate interest in photography and theatre into the production of 125 short films. From their first film, the unfinished "Traveling Boy" (1950), to the most-recognized "Powers of Ten" (re-released in 1977), to their last film in 1982, their cinematic work was an outlet for ideas, a vehicle for experimentation and education. The couple often produced short films to document their interests, such as collecting toys and cultural artifacts on their travels. The films also record the process of hanging their exhibits or producing classic furniture designs. One film, "Blacktop", filmed soap suds and water moving over the pavement of a parking lot, a normally mundane subject turned visually poetic. "Powers of Ten" (narrated by physicist Philip Morrison) gives a dramatic demonstration of orders of magnitude by visually zooming away from the earth to the edge of the universe, and then microscopically zooming into the nucleus of a carbon atom. The "Powers of Ten shot" has been referenced by Hollywood as a praised filming technique.
https://en.wikipedia.org/wiki?curid=14652786
206,606
633,038
Smaller projects that can be completed by an individual student are sometimes accorded the honorific "a great hack" by other students, if they combine technical elegance with a hackish sense of humor. For example, an MIT undergrad transformed an ordinary grocery shopping cart into a high-performance electric vehicle, and was frequently seen riding around campus in his "LOLrioKart". The shopping cart had a claimed top speed over , and also had a complex steering wheel linkage and a low turning radius for maneuverability in tight spaces. The student was a strong advocate of the Open Source Hardware philosophy, and incorporated detailed documentation of his projects and a tutorial on building custom wheel hub motors in his blog. The ersatz vehicle was prominently displayed at many MIT events, as well as at the Cambridge Science Festival. As a crowning mark of recognition by the outside world, the LOLrioKart driver once received a traffic ticket from the Cambridge Police, a copy of which was proudly displayed online.
https://en.wikipedia.org/wiki?curid=4668387
632,700
1,019,330
In 1907, the couple moved to St. Petersburg. Ehrenfest found good friends there, in particular Soviet physicist A.F. Joffe, but felt scientifically isolated. Moreover, because he was unwilling to declare belief in any religious denomination, he could not apply for a professorship, and therefore had no prospect of securing a permanent position. Early in 1912, Ehrenfest set out on a tour of German-speaking universities in the hope of a position. He visited Berlin where he saw Max Planck, Leipzig where he saw his old friend German mathematician Gustav Herglotz, Munich where he met German theoretical physicist Arnold Sommerfeld, then Zürich and Vienna. While in Prague he met Albert Einstein for the first time, and they remained close friends thereafter. Einstein recommended Ehrenfest to succeed him in his position in Prague, but that did not work out. This was due to the fact that Ehrenfest had declared himself to be an atheist. Sommerfeld offered him a position in Munich, but Ehrenfest received a better offer; at the same time there was an unexpected turn of events. H. A. Lorentz resigned his position as professor at the University of Leiden, and on his advice, Ehrenfest was appointed as his successor.
https://en.wikipedia.org/wiki?curid=78958
1,018,803
75,126
Among Schubert's treatments of the poetry of Goethe, his settings of "Gretchen am Spinnrade" (D. 118) and "Der Erlkönig" (D. 328) are particularly striking for their dramatic content, forward-looking uses of harmony, and use of eloquent pictorial keyboard figurations, such as the depiction of the spinning wheel and treadle in the piano in "Gretchen" and the furious and ceaseless gallop in "". He composed music using the poems of myriad poets, with Goethe, Mayrhofer, and Schiller the most frequent, and others, including Heinrich Heine, Friedrich Rückert, and Joseph Freiherr von Eichendorff. Of particular note are his two song cycles on the poems of Wilhelm Müller, "Die schöne Müllerin" and "Winterreise", which helped to establish the genre and its potential for musical, poetic, and almost operatic dramatic narrative. His last collection of songs, published in 1828 after his death, "Schwanengesang", is also an innovative contribution to German Lieder literature, as it features poems by different poets, namely Ludwig Rellstab, Heine, and Johann Gabriel Seidl. The "Wiener Theaterzeitung", writing about "Winterreise" at the time, commented that it was a work that "none can sing or hear without being deeply moved".
https://en.wikipedia.org/wiki?curid=44888
75,098
819,323
More than 135 Soviet organizations (20 design bureaus, 35 research institutes, 80 works) participated in the design and construction of this completely new type of submarine in 1952–1958. The chief designer was V.N. Peregudov and the research supervisor was academician A.P. Alexandrov. The class was originally tasked with entering American naval bases and using the battery-powered T-15 torpedo with thermonuclear warhead, to destroy them once in range. (The T-15 torpedo had the following specifications: calibre 1,550 mm, length 23.5 m, range 40–50 km.) However, after expert opinions of Soviet naval specialists were considered, the role of the class changed to torpedo attacks on enemy warships and transport ships during actions along the ocean and distant sea routes. Reflecting this change of mission, the final design of Project 627 was developed with eight 533 mm torpedo tubes instead of the initial plan for one 1,550 mm and two 533 mm torpedo tubes. Project 627/627A submarines could launch torpedoes from 100 m depth. By 1963 this class was still in service but had been overtaken by later technology.
https://en.wikipedia.org/wiki?curid=527929
818,882
1,135,087
Cosmos encompasses an ahead-of-time (AOT) compiler named IL2CPU to translate Common Intermediate Language (CIL) into native instructions. Cosmos compiles user-made programs and associated libraries using IL2CPU to create a bootable native executable that can be run with no support. The resulting output can be booted from a USB flash drive, CD-ROM, over a network via Preboot Execution Environment (PXE), or inside a virtual machine. Recent releases also allow deploying to certain x86 embedded devices over Universal Serial Bus (USB). While C# is the primary language used by developers (both on the backend and by end users of Cosmos), many CLI languages can be used, provided they compile to pure CIL without the use of Platform Invocation Services (P/Invokes). Cosmos is mainly intended for use with .NET Core.
https://en.wikipedia.org/wiki?curid=15609662
1,134,494
631,934
Michael Faraday discovered the principle of induction, Faraday's induction law, in 1831 and did the first experiments with induction between coils of wire. The induction coil was invented by the American physician Charles Grafton Page in 1836 and independently by Irish scientist and Catholic priest Nicholas Callan in the same year at the St. Patrick's College, Maynooth and improved by William Sturgeon. George Henry Bachhoffner and Sturgeon (1837) independently discovered that a "divided" iron core of iron wires reduced power losses. The early coils had hand cranked interrupters, invented by Callan and Antoine Philibert Masson (1837). The automatic 'hammer' interrupter was invented by Rev. Prof. James William MacGauley (1838) of Dublin, Ireland, Johann Philipp Wagner (1839), and Christian Ernst Neeff (1847). Hippolyte Fizeau (1853) introduced the use of the quenching capacitor. Heinrich Ruhmkorff generated higher voltages by greatly increasing the length of the secondary, in some coils using 5 or 6 miles (10 km) of wire and produced sparks up to 16 inches. In the early 1850s, American inventor Edward Samuel Ritchie introduced the divided secondary construction to improve insulation. Jonathan Nash Hearder worked on induction coils. Callan's induction coil was named an IEEE Milestone in 2006.
https://en.wikipedia.org/wiki?curid=250708
631,596
392,261
After receiving his doctorate, Mullis briefly left science to write fiction before accepting the University of Kansas fellowship. During his postdoctoral work, he managed a bakery for two years. Mullis returned to science at the encouragement of UC Berkeley friend and colleague Thomas White, who secured Mullis's UCSF position and later helped Mullis land a position with the biotechnology company Cetus Corporation of Emeryville, California. Despite little experience in molecular biology, Mullis worked as a DNA chemist at Cetus for seven years, ultimately serving as head of the DNA synthesis lab under White, then the firm's director of molecular and biological research; it was there, in 1983, that Mullis invented the polymerase chain reaction (PCR) procedure.
https://en.wikipedia.org/wiki?curid=17095
392,066
821,578
CRL is a site of major research and development to support and advance nuclear technology, particularly CANDU reactor technology. CRL has expertise in physics, metallurgy, chemistry, biology, and engineering, and hosts unique research facilities. For example, Bertram Brockhouse, a professor at McMaster University, received the 1994 Nobel Prize in Physics for his pioneering work in neutron spectroscopy while at CRL from 1950 to 1962. Sir John Cockcroft was an early director of CRL and also a Nobel laureate. Until the shutdown of its nuclear reactor in 2018, CRL produced a large share of the world's supply of medical radioisotopes. It is owned by the Canadian Nuclear Laboratories subsidiary of Atomic Energy of Canada Limited and operated under contract by the Canadian National Energy Alliance, a private-sector consortium led by SNC-Lavalin.
https://en.wikipedia.org/wiki?curid=611043
821,137
1,967,757
Following a union meeting in the University senate room, Dawes tweeted on 24 October 'Mark my words - we're taking down the mural of white men in the uni Senate room, even if I have to paint over it myself'. The tweet gained over 1,600 comments before being deleted and a petition calling for her resignation received 21,000 signatures. The University's statement made it clear the comments were not representative of the wider student population and that the students' union were following up the incident. The following day the union apologised for the statement of their president and that it did not follow their values and Dawes, after initially defending her opinions, apologised saying 'My intention was to promote strong, female leadership and not the eradication and disrespect of history. I do not believe that to make progress in the future, we should look to erase the past'. In addition to gathering widespread attention, the story also hit headlines as far afield as Australia and Canada.
https://en.wikipedia.org/wiki?curid=13484007
1,966,627
426,646
While acknowledging the likely evolutionary origin of a human need for explanatory myths, in the final chapter of "Chance and Necessity" Monod advocates an objective (hence value-free) scientific worldview as a guide to assessing truth. He describes this as an "ethics of knowledge" that disrupts the older philosophical, mythological and religious ontologies, which claim to provide both ethical values and a standard for judging truth. For Monod, assessing truth separate from any value judgement is what frees human beings to act authentically, by requiring that they "choose" the ethical values that motivate their actions. He concludes that "man at last knows he is alone in the unfeeling immensity of the universe, out of which he has emerged only by chance. His destiny is nowhere spelled out, nor is his duty. The kingdom above or the darkness below: it is for him to choose". While apparently bleak, in comparison to the concepts that humanity belongs to some inevitable, universal process, or that a benevolent God created and protects us, an acceptance of the scientific assessment described in the first part of the quotation is, for Monod, the only possible basis of an authentic, ethical human life. It is reasonable to conclude that Monod himself did not find this position bleak; the quotation he chose from Camus to introduce "Chance and Necessity" ends with the sentence: "One must imagine Sisyphus happy."
https://en.wikipedia.org/wiki?curid=547527
426,437
165,733
Anglia Ruskin has 39,400 students worldwide with campuses in Cambridge, Chelmsford, Peterborough, and London. It shares further campuses with the College of West Anglia in King's Lynn, Wisbech, and Cambridge, and has partnerships with universities around the world including Berlin, Budapest, Trinidad and Tobago, Singapore, and Kuala Lumpur. There are four faculties of study at the university: Faculty of Business and Law, Faculty of Arts, Humanities & Social Sciences, Faculty of Health, Education, Medicine & Social Care, and Faculty of Science & Engineering. The university's Lord Ashcroft International Business School (LAIBS) in Cambridge and Chelmsford is one of the largest business schools in the East of England. In 2021, Anglia Ruskin University received The Queen's Anniversary Prize for world-leading music therapy research. In 2019, the School of Medicine was formally opened at its Chelmsford campus by Prince Edward, Duke of Kent. It was awarded Entrepreneurial University of the Year in the 2014 "Times Higher Education" awards. It won the Duke of York Award for University Entrepreneurship at the Lloyds Bank National Business Awards 2016.
https://en.wikipedia.org/wiki?curid=96932
165,648
1,939,312
Movement along the technology trajectory is associated with research and development. Due to the institutionalization of ideas, markets, and professions, technology development can get 'stuck' (locked-in) within one trajectory, and firms and engineers are unable to adapt to ideas and innovation from the outside. Technological trajectory/development may break- out of trajectory and can cause three understandings 1. when technology will lock in into a trajectory, 2.) when technology may break out of lock-in, and 3.) when competing technologies may co-exist in a balance. A lock-in is when a certain technology develops along a certain trajectory allowing the development to get stuck due to certain circumstances. Not all trajectories are permanently locked into a trajectory. Let us take for example the Technological Advancement/Trajectory of Increasing Resource use. In 1929 after a man who worked for the USGS wanted to make sure there were enough materials and technological advancements after the war on metal production. He considered 4 important factors to make sure metal production would be made: Geology, Technology, Economics, and Politics. There are technical factors that go into mining, treatment, and refining. “The history of sulfur extraction and production technology also reflects continuous improvement upon processes developed from other industries to meet changing materials use requirements and societal needs". The process of sulfur extraction is found deep underground or underwater. The Clean Air Act of 1970 made rules for getting sulfur from oil refining, processing of sulfide, ores, and even the combustion of electricity generation. This required technologies to be made in order to coincide with the Clean Air Act.
https://en.wikipedia.org/wiki?curid=4148511
1,938,202
2,134,214
Rosette and lower pitchers are either wholly ovate or ovate in the basal half of the pitcher cup and narrower above. They measure up to 15 cm in height by 5 cm in width. The hip is usually located near the middle of the pitcher, but may be completely absent in entirely ovate traps. A pair of wings (≤12 mm wide) runs down the ventral surface of the pitcher cup, bearing narrow fringe elements. The pitcher mouth is smoothly triangular and has an oblique insertion. The peristome is flattened and up to 10 mm wide, with teeth up to 1 mm long. The extent of the glandular zone of the inner surface is variable, ranging from one-third to two-thirds of the pitcher's height. The pitcher lid or operculum is broadly to narrowly ovate. It has a slightly cordate base and is often irregularly wavy at the margins. It measures up to 4.5 cm in length by 3.5 cm in width, being as large as or smaller than the pitcher orifice. The lower surface of the lid does not have any appendages, but bears numerous crater-like glands (≤1 mm in diameter), the largest of which are located around the midline. A small depression is also present on the lower surface of the lid, near the apex. An unbranched spur (≤5 mm long) is inserted near the base of the lid. On their outer surface, terrestrial pitchers are typically green to orange with red stripes, or red throughout. Red blotches are present in the waxy zone of the inner surface. The colour of the peristome is highly variable and may be green to orange or red. The lid ranges in colour from orange to red, and bears fine red streaks.
https://en.wikipedia.org/wiki?curid=26329011
2,132,989
1,957,004
But another point of view must be considered: the operational culture of an organization. While it may be true that testers must have an ability to work in a world of uncertainty, it is also true that their flexibility must have direction. In many cases test cultures are self-directed and as a result fruitless, unproductive results can ensue. Furthermore, providing positive evidence of defects may either indicate that you have found the tip of a much larger problem, or that you have exhausted all possibilities. A framework is a test of Testing. It provides a boundary that can measure (validate) the capacity of our work. Both sides have, and will continue to argue the virtues of their work. The proof however is in each and every assessment of delivery quality. It does little good to test systematically if you are too narrowly focused. On the other hand, finding a bunch of errors is not an indicator that Agile methods was the driving force; you may simply have stumbled upon an obviously poor piece of work.
https://en.wikipedia.org/wiki?curid=15136570
1,955,880
2,242,916
Cordeaux began his study of bird migration on the coasts of the counties of Lincolnshire (where he lived) and Yorkshire. In 1872 he published a summary of the results of years of observations in his book "Birds of the Humber District". In 1874 he was elected as a member of the British Ornithologists' Union. In the autumn of that same year he went to the island of Heligoland to learn about the ornithological knowledge accumulated by Heinrich Gätke; soon after the visit Cordeaux wrote a paper for "The Ibis" describing Gätke's collection. In 1879 Cordeaux collaborated with J. A. Harvie-Brown in persuading keepers of lighthouses and lightvessels on the coasts of England and Scotland to accumulate information on bird migration. At the summer 1880 meeting at Swansea, the British Association formed a committee headed by Alfred Newton with Cordeaux as secretary; the purpose of the committee was to systematically continue the work which Cordeaux and Harvie-Brown had shown to be practicable. At the summer 1896 meeting of the British Association at Liverpool, W. Eagle Clarke presented a "Digest of the Observations" for the committee's findings.
https://en.wikipedia.org/wiki?curid=43933078
2,241,645
340,023
To increase accuracy for the Dragunov SVD, the Soviets developed the 7N1 variant of the cartridge in 1966. The 7N1 was developed by V. M. Sabelnikov, P. P. Sazonov and V. M. Dvorianinov. It used match-grade extruded powder instead of the coarser ball propellant and had a boat-tailed FMJ jacketed projectile with an air pocket, a steel core and a lead knocker in the base for maximum terminal effect. It had a ballistic coefficient (G1 BC) of approximately 0.411 and (G7 BC) of approximately 0.206. Produced by "Factory 188" (Novosibirsk Low Voltage Equipment Plant), cartridges are only head-stamped with the number "188" and the year of manufacture. It came packaged 20 loose rounds to a paper packet, 22 packets to a metal "spam" tin, and two tins per wooden case for a total of 880 rounds. The individual paper packets, hermetically sealed metal 'spam' cans, and wooden shipping crates were all distinctly marked "Снайперская" ("Snaiperskaya", the adjective form of "sniper"). Even the wax wrapping paper for the paper packets was covered in red text to make sure it was not misused.
https://en.wikipedia.org/wiki?curid=1031658
339,842
372,406
By the summer of 1918, about 2 million U.S. soldiers had arrived in France, about half of whom eventually saw front-line service; by the Armistice of November 11 approximately 10,000 U.S. soldiers were arriving in France daily. In 1917, Congress gave U.S. citizenship to Puerto Ricans when they were drafted to participate in World War I, as part of the Jones Act. In the end, the German Empire miscalculated the United States' influence on the outcome of the conflict, believing it would be many more months before U.S. troops would arrive and overestimating the effectiveness of U-boats in slowing the American buildup. Beginning with the Battle of Saint-Mihiel, the first major battle involving the American Expeditionary Forces, the leaders of the United States war efforts were General of the Armies John J. Pershing, Navy Admiral William Sims, and Chief of Air Service Mason Patrick.
https://en.wikipedia.org/wiki?curid=25604889
372,211
1,296,499
A study convened by a group of British hematologists on 19 March 2021, just two days after the acknowledgement of the condition, published its finding in The New England Journal of Medicine, establishing case definition criteria. The study included 294 participants who presented with symptoms of thrombocytopenia and thrombosis after receipt of the first dose of the Oxford–AstraZeneca COVID‑19 vaccine, showing an independent association between baseline platelet count and the presence of intracranial hemorrhage. The study established that 85% of the participants effected by the condition were aged younger than 60 years, and that those participants with a history of thrombosis or prothrombotic disorders did not appear to be at increased risk. The study showed an overall mortality rate of 22% and set out plans for additional research to determine the genetic factors that may increase risk of the condition and identify potential therapeutic agents.
https://en.wikipedia.org/wiki?curid=67257205
1,295,788
392,288
In 289 BC a group of Italian mercenaries known as Mamertines, previously hired by Syracuse, occupied the city of Messana (modern Messina) on the north-eastern tip of Sicily. Hard-pressed by Syracuse, the Mamertines appealed to both Rome and Carthage for assistance in 265 BC. The Carthaginians acted first, pressing Hiero II, king of Syracuse, into taking no further action and convincing the Mamertines to accept a Carthaginian garrison. According to Polybius, a considerable debate then took place in Rome as to whether to accept the Mamertines' appeal for assistance. As the Carthaginians had already garrisoned Messana acceptance could easily lead to war with Carthage. The Romans had not previously displayed any interest in Sicily and did not wish to come to the aid of soldiers who had unjustly stolen a city from its rightful owners. However, many of them saw strategic and monetary advantages in gaining a foothold in Sicily. The deadlocked Roman Senate, possibly at the instigation of Appius Claudius Caudex, put the matter before the popular assembly in 264 BC. Caudex encouraged a vote for action and held out the prospect of plentiful booty; the popular assembly decided to accept the Mamertines' request. Caudex was appointed commander of a military expedition with orders to cross to Sicily and place a Roman garrison in Messana.
https://en.wikipedia.org/wiki?curid=11427
392,093
1,418,530
Secondly, the techniques are claimed to be "commercially effective". The companies publish case studies that show how clients have achieved significant and measurable benefits in terms of reduced inventory and lower logistics cost levels, while typically maintaining or improving customer service through better predictability and improved availability. Kokoris notes that a supply chain optimization initiative can represent "an untapped opportunity to realize increased short and long-term cash flows and cost savings". However, there is limited published data outside of these case studies, and a reluctance for some practitioners to publish details of their successes (which may be commercially sensitive), therefore hard evidence is difficult to come by. Last, not least, independent advisors or benchmarks show the stickiness and benefits achieved in specific sub-sectors.
https://en.wikipedia.org/wiki?curid=5205119
1,417,731
1,754,350
Near the beginning of the memoir is established the celebrated formula connecting surface and volume integrals, which is now generally called Green's Theorem, and of which Poisson's result on the equivalent surface – and volume – distributions of magnetization is a particular application. By using this theorem to investigate the properties of the potential, Green arrived at many results of remarkable beauty and interest. We need only mention, as an example of the power of his method, the following: — Suppose that there is a hollow conducting shell, bounded by two closed surfaces, and that a number of electrified bodies are placed, some within and some without it; and let the inner surface and interior bodies be called the interior system, and the outer surface and exterior bodies be called the exterior system. Then all the electrical phenomena of the interior system, relative to attractions, repulsions, and densities, will be the same as if there were no exterior system, and the inner surface were a perfect conductor, put in communication with the earth; and all those of the exterior system will be the same as if the interior system did not exist, and the outer surface were a perfect conductor, containing a quantity of electricity equal to the whole of that originally contained in the shell itself and in all the interior bodies. It will be evident that electrostatics had by this time attained a state of development in which further progress could be hoped for only in the mathematical superstructure, unless experiment should unexpectedly bring to light phenomena of an entirely new character.
https://en.wikipedia.org/wiki?curid=30056893
1,753,360
1,025,202
The ore to be treated is ground into particles (comminution). In the idealized case, the individual minerals are physically separated, a process known as full "liberation". The particle sizes are typically in the range 2-500 microns in diameter. For froth flotation, an aqueous slurry of the ground ore is treated with the frothing agent. An example is sodium ethyl xanthate as a collector in the flotation of galena (lead sulfide) to separate it from sphalerite (zinc sulfide). The polar part of xanthate anion attaches to the ore particles and the non-polar hydrocarbon part forms a hydrophobic layer. The particles are brought to the water surface by air bubbles. About 300 g/tonne of ore is required for efficient separation. The efficiency of the hydrophobic action increases, but the selectivity to ore type decreases with increasing length of the hydrocarbon chain in xanthates. The chain is shortest in sodium ethyl xanthate that makes it highly selective to copper, nickel, lead, gold, and zinc ores. Aqueous solutions (10%) with pH=7–11 are normally used in the process. This slurry (more properly called the "pulp") of hydrophobic particles and hydrophilic particles is then introduced to tanks known as "flotation cells" that are aerated to produce bubbles. The hydrophobic particles attach to the air bubbles, which rise to the surface, forming a froth. The froth is skimmed from the cell, producing a concentrate ("conc") of the target mineral.
https://en.wikipedia.org/wiki?curid=1567681
1,024,669
105,226
Principal outdoor photography was shot on the 20th Century Fox sound stages and on its studio back lot (now located in Century City, California), with a second unit shooting background and other scenes in Washington D.C. and at Fort George G. Meade in Maryland. The shooting schedule was from April 9 to May 23, 1951, and the primary actors never traveled to Washington to make the film. Director Robert Wise indicated in the DVD commentary that the United States Department of Defense refused participation in the film based on a reading of the script. The military equipment shown, however, came from the 3rd Armored Cavalry Regiment then stationed at Fort Meade which supplied the vehicles, equipment, and soldiers for the segments depicting Army operations. One of the film's tanks bears the "Brave Rifles" insignia of the 3rd Armored Cavalry Regiment.
https://en.wikipedia.org/wiki?curid=73422
105,181
975,090
The German "Bundeswehr" completed an analysis of air defense alternatives in 2010 and strongly recommended MEADS as the basis for improving Germany's missile defense shield and as Germany's contribution to the European Phased Adaptive Approach. In February 2011, the U.S. Department of Defense announced that it intended to fulfill its commitment to complete the design and development effort, but that it would not procure the MEADS system for budgetary reasons. Lockheed Martin developed an interactive life cycle cost and capabilities application based on their Dynamic Comparative Analysis Methodology (DCAM) approach to more fully evaluate and communicate the performance and cost advantage of MEADS as compared to alternative systems. The DCAM application further reinforced the value of MEADS and is credited with helping ensure continued funding.
https://en.wikipedia.org/wiki?curid=1034730
974,579
96,844
The first computer monitors used cathode-ray tubes (CRTs). Prior to the advent of home computers in the late 1970s, it was common for a video display terminal (VDT) using a CRT to be physically integrated with a keyboard and other components of the workstation in a single large chassis, typically limiting them to emulation of a paper teletypewriter, thus the early epithet of 'glass TTY'. The display was monochromatic and far less sharp and detailed than on a modern monitor, necessitating the use of relatively large text and severely limiting the amount of information that could be displayed at one time. High-resolution CRT displays were developed for specialized military, industrial and scientific applications but they were far too costly for general use; wider commercial use became possible after the release of a slow, but affordable Tektronix 4010 terminal in 1972.
https://en.wikipedia.org/wiki?curid=7677
96,803
50,526
In the 1950s, radar was fitted to day fighters, since due to ever increasing air-to-air weapon ranges, pilots could no longer see far enough ahead to prepare for the opposition. Subsequently, radar capabilities grew enormously and are now the primary method of target acquisition. Wings were made thinner and swept back to reduce transonic drag, which required new manufacturing methods to obtain sufficient strength. Skins were no longer sheet metal riveted to a structure, but milled from large slabs of alloy. The sound barrier was broken, and after a few false starts due to required changes in controls, speeds quickly reached Mach 2, past which aircraft cannot maneuver sufficiently to avoid attack.
https://en.wikipedia.org/wiki?curid=10929
50,506
1,014,026
One of the most significant effects of exercise on the brain is increased synthesis and expression of BDNF, a neuropeptide and hormone, resulting in increased signaling through its receptor tyrosine kinase, tropomyosin receptor kinase B (TrkB). Since BDNF is capable of crossing the blood–brain barrier, higher peripheral BDNF synthesis also increases BDNF signaling in the brain. Exercise-induced increases in BDNF signaling are associated with beneficial epigenetic changes, improved cognitive function, improved mood, and improved memory. Furthermore, research has provided a great deal of support for the role of BDNF in hippocampal neurogenesis, synaptic plasticity, and neural repair. Engaging in moderate-high intensity aerobic exercise such as running, swimming, and cycling increases BDNF biosynthesis through myokine signaling, resulting in up to a threefold increase in blood plasma and BDNF levels; exercise intensity is positively correlated with the magnitude of increased BDNF biosynthesis and expression. A meta-analysis of studies involving the effect of exercise on BDNF levels found that consistent exercise modestly increases resting BDNF levels as well. This has important implications for exercise as a mechanism to reduce stress since stress is closely linked with decreased levels of BDNF in the hippocampus. In fact, studies suggest that BDNF contributes to the anxiety-reducing effects of antidepressants. The increase in BDNF levels caused by exercise helps reverse the stress-induced decrease in BDNF which mediates stress in the short term and buffers against stress-related diseases in the long term.
https://en.wikipedia.org/wiki?curid=34760961
1,013,505
119,148
As a researcher at the Institute for High Energy Physics in Protvino, Russia, Anatoli Bugorski worked with the largest particle accelerator in the Soviet Union, the U-70 synchrotron. On 13 July 1978, Bugorski was checking a malfunctioning piece of equipment when the safety mechanisms failed. Bugorski was leaning over the equipment when he stuck his head in the path of the 76 GeV proton beam. Reportedly, he saw a flash "brighter than a thousand suns" but did not feel any pain. The beam passed through the back of his head, the occipital and temporal lobes of his brain, the left middle ear, and out through the left hand side of his nose. The exposed parts of his head received a local dose of 200,000 to 300,000 roentgens. Bugorski understood the severity of what had happened, but continued working on the malfunctioning equipment, and initially opted not to tell anyone what had happened.
https://en.wikipedia.org/wiki?curid=7728077
119,099
807,209
Christian Svensson, Capcom's Senior Vice President of strategic planning and business development, stated that the company was pleased with the sales of "Mega Man 10". The game has received generally favorable reviews, with aggregate Metacritic percentages of 81, 79, and 78 on WiiWare, XBLA, and PSN respectively. IGN's Colin Moriarty praised its gameplay, challenge mode, and the addition of Proto Man as a playable character, which he said adds more depth to the game. Moriarty expressed disappointment in its short length however, citing other games in the series with two ending castles ("Mega Man 4" through "Mega Man 6"). 1UP.com's Jeremy Parish gave the game a B grade, calling it fun, but stating that it fails to capitalize its predecessor in a meaningful way, claiming overly similar gameplay, uninspiring level design, and forgettable music. "Mega Man 10" was later released on the PlayStation 4, Xbox One, and PC as part of "Mega Man Legacy Collection 2", which also made a slight change of allowing the player to unlock all of the former downloadable content without making any purchases. A digital version was later released on the Nintendo Switch in 2018.
https://en.wikipedia.org/wiki?curid=25378460
806,779
253,877
The heptathlon has been contested by female athletes since the early 1980s, when it replaced the pentathlon as the primary women's combined event contest (the javelin throw and 800 m were added). It was first contested at the Olympic level in the 1984 Summer Olympics. In recent years some women's decathlon competitions have been conducted, consisting of the same events as the men's competition in a slightly different order, and World Athletics has begun keeping records for it, but the heptathlon remains the championship-level combined event for women. Nafissatou Thiam, representing Belgium, is the 2020 Olympic Gold Medallist, after successfully defending her 2016 title. She is also the reigning World Champion and European Champion. Katarina Johnson-Thompson, representing Great Britain, is the current Commonwealth Champion. Odile Ahouanwanou. Yekaterina Voronina, Kiara Reddingius, Luisarys Toledo and Ariana Ince hold the African, Asian, Oceanian, South American and NACAC (North American, Central American and Caribbean) titles respectively. Adriana Rodríguez, Marthe Koala, Swapna Barman and Elenani Tinai hold the Panamerican Games, African Games, Asian Games and Pacific Games titles respectively.
https://en.wikipedia.org/wiki?curid=303715
253,744
746,898
Ostrom was diagnosed with pancreatic cancer in October 2011. During the final year of her life, she continued to write and lecture, giving the Hayek Lecture at the Institute of Economic Affairs just eleven weeks before her death. She died at 6:40 a.m. Tuesday, June 12, 2012, at IU Health Bloomington Hospital at the age of 78. On the day of her death, she published her last article, "Green from the Grassroots," in Project Syndicate. Indiana University president Michael McRobbie wrote: "Indiana University has lost an irreplaceable and magnificent treasure with the passing of Elinor Ostrom". Her Indiana colleague Michael McGinnis commented after her death that Ostrom donated her share of the $1.4 million Nobel award money to the Workshop—the biggest, by far, of several academic prizes with monetary awards that the Ostroms had given to the center over the years. Her husband Vincent died 17 days later from complications related to cancer. He was 92.
https://en.wikipedia.org/wiki?curid=5033761
746,502
482,017
The second stage features the reabsorption of the initially extravasated fluid and albumin from the tissues, and it usually lasts 1 to 2 days. Intravascular fluid overload leads to polyuria and can cause flash pulmonary edema and cardiac arrest, with possibly fatal consequences. Death from SCLS typically occurs during this recruitment phase because of pulmonary edema arising from excessive intravenous fluid administration during the earlier leak phase. The severity of the problem depends on to the quantity of fluid supplied in the initial phase, the damage that may have been sustained by the kidneys, and the promptness with which diuretics are administered to help the patient discharge the accumulated fluids quickly. A recent study of 59 acute episodes occurring in 37 hospitalized SCLS patients concluded that high-volume fluid therapy was independently associated with poorer clinical outcomes, and that the main complications of SCLS episodes were recovery-phase pulmonary edema (24%), cardiac arrhythmia (24%), compartment syndrome (20%), and acquired infections (19%).
https://en.wikipedia.org/wiki?curid=7161873
481,773
1,663,882
, to less than 2 μm thick and theoretically could be as thin as 100 nm. They can use substrates which are cheaper than silicon, such as glass, plastic or steel. One of the challenges for thin film solar cells is that they do not absorb as much light as thicker solar cells made with materials with the same absorption coefficient. Methods for light trapping are important for thin film solar cells. Plasmonic-enhanced cells improve absorption by scattering light using metal nano-particles excited at their surface plasmon resonance. Plasmonic core-shell nanoparticles located in the front of the thin film solar cells can aid weak absorption of Si solar cells in the near-infrared region—the fraction of light scattered into the substrate and the maximum optical path length enhancement can be as high as 0.999 and 3133. Incoming light at the plasmon resonance frequency induces electron oscillations at the surface of the nanoparticles. The oscillation electrons can then be captured by a conductive layer producing an electrical current. The voltage produced is dependent on the bandgap of the conductive layer and the potential of the electrolyte in contact with the nanoparticles. There is still considerable research necessary to enable the technology to reach its full potential and commercialization of plasmonic-enhanced solar cells.
https://en.wikipedia.org/wiki?curid=25451813
1,662,945
930,052
The work performed by clinical psychologists tends to be done inside various therapy models, all of which involve a formal relationship between professional and client—usually an individual, couple, family, or small group—that employs a set of procedures intended to form a therapeutic alliance, explore the nature of psychological problems, and encourage new ways of thinking, feeling, or behaving. The four major perspectives are psychodynamic, cognitive behavioral, existential-humanistic, and systems or family therapy. There has been a growing movement to integrate these various therapeutic approaches, especially with an increased understanding of issues regarding ethnicity, gender, spirituality, and sexual-orientation. With the advent of more robust research findings regarding psychotherapy, there is growing evidence that most of the major therapies are about of equal effectiveness, with the key common element being a strong therapeutic alliance. Because of this, more training programs and psychologists are now adopting an eclectic therapeutic orientation.
https://en.wikipedia.org/wiki?curid=326313
929,561
971,492
Geophysics () is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term "geophysics" sometimes refers only to solid earth applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations and pure scientists use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial physics; and analogous problems associated with the Moon and other planets.
https://en.wikipedia.org/wiki?curid=54962
970,982
1,374,151
While work on the development of the Hermes vehicle was cancelled during the early 1990s, the ESA maintained its strategic long-term objective to indigenously develop and eventually deploy similar reusable space vehicles. Accordingly, in support of this goal, the ESA embarked upon a series of design studies on different experimental vehicle concepts as well as to refine and improve technologies deemed critical to future reentry vehicles. In order to test and further develop the technologies and concepts produced by these studies, there were clear needs to accumulate practical flight experience with reentry systems, as well as to maintain and expand upon international cooperation in the fields of space transportation, exploration, and science. Out of these desires emerged the Future Launchers Preparatory Programme (FLPP), an ESA-headed initiative conceived and championed by a number of its member states, which provided a framework for addressing the challenges and development of the technology associated with reentry vehicles.
https://en.wikipedia.org/wiki?curid=4410085
1,373,393
287,108
CLL can also be caused by a number of epigenetic changes, which are adaptations that add a tag to specific DNA sequences, rather than altering the sequence itself. In CLL, these changes can be classified into the addition of three different methyl subgroups (naïve B-cell-like, memory B-cell-like, and intermediate), which impact how much that DNA sequence is transcribed. Some relevant genetic mutations may be inherited. Since there is no one single mutation that is associated with CLL in all cases, an individual’s susceptibility may be impacted when multiple mutations that are associated with an increase in the risk of CLL are co-inherited. Up until 2020, 45 susceptibility loci have been identified. Of these loci, 93% are linked to the alteration of 30 gene expressions involved in immune response, cell survival, or Wnt signaling. Exposure to Agent Orange increases the risk of CLL, and exposure to hepatitis C virus may increase the risk. There is no clear association between ionizing radiation exposure and the risk of developing CLL. Blood transfusions have been ruled out as a risk factor.
https://en.wikipedia.org/wiki?curid=454231
286,953
603,414
In 1946, General Motors Overseas Operations established a Batavia Branch (later renamed "Djakarta Branch") to continue the pre-war activities, building nearly 20,000 vehicles in the next six years. By 1953, activities had mostly ended as Sukarno's pro-Chinese government took power. As of 1954 local partner PN Gaya Motor continued alone; the Indonesian government took over the assets in April 1955. GM dissolved this paper operation a year later. The government-run operations did not take good care of the plant and 60 percent of the run-down assets were sold to PT Astra Motor (who, coincidentally, had gotten their start by being allowed to import 800 Chevrolet trucks in 1967) in 1969. Astra had expected to sell Chevrolets but were denied the contract and ended up importing Toyotas instead.
https://en.wikipedia.org/wiki?curid=49352436
603,104
906,729
Over the next few decades the Boilermakers would enjoy moderate success, culminating in 1969 when they won their first conference title in 29 years and advanced to the 1969 NCAA Finals game under head coach George King and led by All-American Rick Mount, where they would fall to former Purdue great, John Wooden, and his UCLA Bruins squad. Former Los Angeles Lakers coach/general manager, Fred Schaus, who also spent time as West Virginia's head coach, took over the program after George King stepped down to become solely the school's athletic director. Schaus led the Boilermakers to the 1974 NIT Championship, becoming the first Big Ten team to capture the NIT title. In the 1978–79 season, new head coach Lee Rose introduced Purdue basketball to a new approach with a slowed-down, controlled style of play. With All-American center Joe Barry Carroll, he led them to the 1979 NIT Finals and to a 1980 NCAA Final Four appearance.
https://en.wikipedia.org/wiki?curid=8204961
906,253
2,064,843
The State of Michigan of Community Health (MDCH) is the regulatory body to which the design of the NSL must comply. MDCH limits Class AA installations public exposure to be less than 2 mrem/h, measure 5 cm from any accessible external surface point, while the source is operating at maximum radiation output. Therefore, the lab was designed such that the dose rates are less than 2 mrem/h at any point outside of the experimental area with DT generator in operation (since it is the most intense source in the laboratory) The concrete walls were made 3 ft thick according to the guidance from The National Council on Radiation Protection and Measurements Report No. 144, “Radiation Protection for Particle Accelerator Facilities,” and the MCNP simulations. The walls were made 11 ft tall to permit experiments at various heights of the DT generator. After renovation of the laboratory and installation of safety interlocks, the P211 DT generator was first operated on 28 November 2017. The dose rates were experimentally determined outside of the laboratory walls and were below the permissible limit of 2 mrem/h. On that day, NSL was approved for operation by the U-M Radiation Safety Service.
https://en.wikipedia.org/wiki?curid=10905526
2,063,652
695,716
In November 1852, the Lancaster County Educational Association met in Strasburg to form an institute for teacher training. The first institute, which led to the Lancaster County Normal School and received significant support from Thomas H. Burrowes, was held in January 1853. While the Association was working to organize, Lewis M. Hobbs, a popular teacher of the Manor district, lobbied heavily in Manor township for a more permanent training facility for teachers. Jacob Shenk, a local farmer, donated a tract of five acres (the present-day site of Ganser Library, Biemesderfer Executive Center, and Dutcher Hall) with Hobbs collecting investments from local residents. On April 17, 1855, Lancaster County Normal School opened with James P. Wickersham as principal and a peak of 147 teachers in attendance. The school president was Thomas H. Burrowes and the vice president was Lewis M. Hobbs. November 5, 1855, marked the start of the first full session, with a new expansion of the original Academy building that made 96 rooms available for nearly 200 students and their teachers.
https://en.wikipedia.org/wiki?curid=3553460
695,352
1,368,186
Infection begins when the surface glycoprotein (SU) on the outer part of the mature, infectious virion binds to the receptor on the surface of the new host cell. As a result of attachment, changes occur in Env. These changes lead to the release of the surface glycoprotein (SU) and the conformational rearrangement of the transmembrane protein (TM). As a result, the fusion of the viral membrane and the plasma membrane occurs. Fusion of the membranes leads to the deposition of the virion content in the cytoplasm of the cell. After entering the cytoplasm, viral RNA is copied into a single dsDNA molecule by reverse transcriptase. This DNA is somehow carried into the nucleus, where the integrase (IN) protein catalyzes its insertion into chromosomal DNA. The viral DNA integrated into the host genome is called “provirus”. It is copied and translated by normal host-cell machinery. The encoded proteins are trafficked to the plasma membrane, where they assemble into progeny virus particles. Immature particles are released from the cell with the help of cellular "ESCRT" machinery and then they undergo maturation as the viral protease cleaves the polyproteins. The particle cannot start a new infection until maturation occurs.
https://en.wikipedia.org/wiki?curid=4371737
1,367,430
205,568
Astronomers for many years ruled out red dwarfs as potential abodes for life. Their small size (from 0.08 to 0.45 solar masses) means that their nuclear reactions proceed exceptionally slowly, and they emit very little light (from 3% of that produced by the Sun to as little as 0.01%). Any planet in orbit around a red dwarf would have to huddle very close to its parent star to attain Earth-like surface temperatures; from 0.3 AU (just inside the orbit of Mercury) for a star like Lacaille 8760, to as little as 0.032 AU for a star like Proxima Centauri (such a world would have a year lasting just 6.3 days). At those distances, the star's gravity would cause tidal locking. One side of the planet would eternally face the star, while the other would always face away from it. The only ways in which potential life could avoid either an inferno or a deep freeze would be if the planet had an atmosphere thick enough to transfer the star's heat from the day side to the night side, or if there was a gas giant in the habitable zone, with a habitable moon, which would be locked to the planet instead of the star, allowing a more even distribution of radiation over the planet. It was long assumed that such a thick atmosphere would prevent sunlight from reaching the surface in the first place, preventing photosynthesis.
https://en.wikipedia.org/wiki?curid=2592906
205,462
1,671,904
Miller received his Ph.D. from the University of California, Berkeley in 1975 under the direction of Manuel Blum. Following periods on the faculty at the University of Waterloo, the University of Rochester, MIT and the University of Southern California, Miller moved to Carnegie Mellon University, where he is now Professor of Computer Science. In addition to his influential thesis on computational number theory and primality testing, Miller has worked on many central topics in computer science, including graph isomorphism, parallel algorithms, computational geometry and scientific computing. His most recent focus on scientific computing led to breakthrough results with students Ioannis Koutis and Richard Peng in 2010 that currently provide the fastest algorithms—in theory and practice—for solving "symmetric diagonally dominant" linear systems, which have important applications in image processing, network algorithms, engineering and physical simulations. His Ph.D. thesis was titled "Riemann's Hypothesis and Tests for Primality".
https://en.wikipedia.org/wiki?curid=19278961
1,670,963
1,251,156
Students with degrees in range science are eligible for a host of technician-type careers working for the federal government under the Bureau of Land Management, the United States Fish and Wildlife Service, the Agricultural Research Service, the United States Environmental Protection Agency, the NRCS, or the US Forest Service as range conservationists, inventory technicians, range monitoring/animal science agents, field botanists, natural-resource technicians, vegetation/habitat monitors, GIS programming assistants, general range technicians, and as ecological assessors, as well as working in the private sector as range managers, ranch managers, producers, commercial consultants, mining and agricultural real estate agents, or as Range/ Ranch Consultants. Individuals who complete degrees at the M.S. or P.h.D. level, can seek academic careers as professors, extension specialists, research assistants, and adjunct staff, in addition to a number of professional research positions for government agencies such as the US Department of Agriculture and other state run departments.
https://en.wikipedia.org/wiki?curid=50283749
1,250,478
2,051,634
While in graduate school, he co-authored a widely cited paper, Re-examination of the “3/4-law” of Metabolism, published in the "Journal of Theoretical Biology". As a post-doctoral scholar, he published Coevolutionary arms races between bacteria and bacteriophage in the "Proceedings of the National Academy of Sciences". His notable more recent publications include Statistical structure of host–phage interactions, "PNAS" (2011), Ocean viruses and their effects on microbial communities and biogeochemical cycles, "F1000 Bio. Rep." (2012) Viral tagging reveals discrete populations in Synechococcus viral genome sequence space, "Nature" (2014), and An oscillating tragedy of the commons in replicator dynamics with game-environment feedback, "PNAS" (2016),
https://en.wikipedia.org/wiki?curid=56109434
2,050,453
2,177,549
According to youth.gov, there is a program designed for students moving from elementary school to middle school. The purpose is to alleviate stress that seems to be heightened during this age group. The focus of the program is to focus on the students themselves and how they feel as well as the feelings of others, especially in high-stress situations. Starting to think of their goals and barriers that may get in the way of their goals is also a main priority in the program. Overcoming these issues confidently with a plan is the ultimate goal of this course, but recognizing that even the best of solutions may not lead to the resolution that was planned. Teaching these skills young will teach students at a young age how to approach situations confidently instead of backing down and most likely benefit them their whole lives into their profession. The social problem-solving skills that the course focused on included interpersonal sensitivity, means-end thinking, and planning and anticipation. Having more programs like this would make students more prepared in social decision-making and any social situation necessarily in the future. The study done with students on youth.gov handled stress and stress-induced situations much better than students who had not been in the decision-making program.
https://en.wikipedia.org/wiki?curid=38180529
2,176,305
1,355,740
The lineup originally consisted of founder, vocalist, and main songwriter Charlie Pennachio, bassist and guitar player Wyatt Pauley, percussion player Joey Restivo, drummer Gerald Rappaport, guitarist Phil Conneilly, and backup vocalist/keyboardist Ricki Archer. In 1989, the band had a hit with the gold single, "Sending All My Love," which was self-released on Futura Records by Pennachio and producer Tolga Katas. After the regional success of the single, founder Charlie Pennachio added the remaining band members Pauley, Restivo, Rappaport, Conneilly and Archer. In January 1990, Linear was signed as a trio after the departure of Rappaport, Conneilly, and Archer by Marc Nathan at Atlantic Records. "Sending All My Love" reached number 5 on the "Billboard" Hot 100 in May 1990. The same year, they released their first, self-titled album, followed in 1992 by their second "Caught in the Middle". They had another hit with the single, "T.L.C.", which reached number 30 and was nearly three decades later named one of "Rolling Stone's" 75 Greatest Boy Band Songs. In subsequent years, the lineup would shuffle many times. Pauley took a brief hiatus from Linear to join his other band, Soko, signed to Atco Records. Pennachio would go on to add Mark Acetelli and Michael Dean to replace Pauley. Pauley would return in 1993, while Restivo would depart. Raul Prestol was then added.
https://en.wikipedia.org/wiki?curid=4587487
1,354,992
456,597
The same or similar to traditional recording montages used for ABR recordings are used for the ASSR. Two active electrodes are placed at or near vertex and at ipsilateral earlobe/mastoid with ground at low forehead. If collecting from both ears simultaneously, a two-channel pre-amplifier is used. When single channel recording system is used to detect activity from a binaural presentation, a common reference electrode may be located at the nape of the neck. Transducers can be insert earphones, headphones, a bone oscillator, or sound field and it is preferable if patient is asleep. Unlike ABR settings, the high pass filter might be approximately 40 to 90 Hz and low pass filter might be between 320 and 720 Hz with typical filter slopes of 6 dB per octave. Gain settings of 10,000 are common, artifact reject is left "on", and it is thought to be advantageous to have manual "override" to allow the clinician to make decisions during test and apply course corrections as needed.
https://en.wikipedia.org/wiki?curid=6259764
456,374
1,347,610
In the first half of the 20th century, various formalisms were proposed to capture the informal concept of a "computable function", with μ-recursive functions, Turing machines and the lambda calculus possibly being the best-known examples today. The surprising fact that they are essentially equivalent, in the sense that they are all encodable into each other, supports the Church-Turing thesis. Another shared feature is more rarely commented on: they all are most readily understood as models of "sequential" computation. The subsequent consolidation of computer science required a more subtle formulation of the notion of computation, in particular explicit representations of concurrency and communication. Models of concurrency such as the process calculi, Petri nets in 1962, and the actor model in 1973 emerged from this line of inquiry.
https://en.wikipedia.org/wiki?curid=853240
1,346,869
1,336,609
There are 11 hydroacoustic stations that are set up to monitor any activity in the oceans. They were developed to ensure the ban on underwater testing, and because of water’s ability to carry sound they are very efficient. These stations collect data in real time, work 24 hours a day for 365 days a year. However, hydroacoustics have difficulties pinpointing the location of an explosion or event, so they must be used with another method of detection finding(such as the ones previously mentioned). Other problems that hydroacoustics face are the difficulties caused by the structure of the sea floor, as well as islands that can block sound. Sound travels the best through deep ocean, so events near shallow water will not be detected as well. However, hydroacoustic devices also serves different purposes and are used as a unique resource for research on ocean phenomena.
https://en.wikipedia.org/wiki?curid=53815147
1,335,879
954,306
Lack of foresight in the choice of memory-mapped I/O regions led to many of the RAM-capacity barriers in older generations of computers. Designers rarely expected machines to grow to make full use of an architecture's theoretical RAM capacity, and thus often used some of the high-order bits of the address-space as selectors for memory-mapped I/O functions. For example, the 640 KB barrier in the IBM PC and derivatives is due to reserving the region between 640 and 1024 KB (64k segments 10 through 16) for the Upper Memory Area. This choice initially made little impact, but it eventually limited the total amount of RAM available within the 20-bit available address space. The 3 GB barrier and PCI hole are similar manifestations of this with 32-bit address spaces, exacerbated by details of the x86 boot process and MMU design. 64-bit architectures often technically have similar issues, but these only rarely have practical consequences.
https://en.wikipedia.org/wiki?curid=335157
953,801
2,021,358
In the summer of 2010 researchers Dr. Muhammad Maqbool and Kyle Main of Ball State University and Dr. Martin Kordesch of Ohio University were able to successfully develop the first Aluminum Nitride SRL on the order of 20 micrometers in diameter. This SRL was constructed by depositing a 4 micrometer thick semi conducting Aluminum-Nitride film doped with Ti+3 ions onto a stretched fiber optic cable of 12 micrometer diameter. This SRL was shown to have considerable gain and a low threshold pump power, making it a highly efficient laser system. The light was confined only to the film and did not reflect off of the outer surface of the optical fiber. Such an arrangement is called a "Whispering Gallery Mode". Maqbool and Main plan to expand their work to include the development of nano scale SRLs on carbon nanotubes.
https://en.wikipedia.org/wiki?curid=24004598
2,020,195
396,452
With increased neural complexity as seen in mammals (due to phylogenetic development) there is said to have evolved a more sophisticated system to enrich behavioral and affective responses to an increasingly complex environment. The ventral branch of the vagus originates in the nucleus ambiguus and is myelinated to provide more speed in responding. Polyvagal theory calls this the "smart vagus" because it associates it with the regulation of sympathetic "fight or flight" behaviors by way of social affiliative behaviors. These behaviors are said to include social communication and self-soothing and calming. In other words, this branch of the vagus is said to inhibit or disinhibit defensive limbic circuits, depending on the situation. Note: Attributing defensive behaviours purely to the limbic system is an oversimplification, as these are triggered by perceived threats, thus requiring an interplay of brain areas performing sensory integration, memory, and semantic knowledge with the limbic system to be elicited. Similarly, the regulation of emotions requires a complex interplay of higher cognitive areas with limbic ones.
https://en.wikipedia.org/wiki?curid=15376795
396,256
1,407,146
The deCODE effort scaled up quickly to a capacity of over 1000 samples per day. From the beginning of population screening, fewer than 1% of those taking part were found to be infected, indicating that the health authorities' containment strategy was working. From mid-March to the end of May 2020, the company conducted an average of 600 tests a day, complementing the health authorities' 250 tests per day at the National-University Hospital. Those testing positive in deCODE's screening were similarly isolated and their contacts traced and asked to quarantine themselves. In total, by the beginning of June more than 60,000 tests had been conducted in Iceland, equivalent to 18 percent of the population. Powered by this combined testing strategy and tracing and isolation follow up, the number of infections in Iceland peaked in the first week of April and dropped steeply off by the end of the month. By mid-May, there were only a handful of active infections in the country, although deCODE and the health authorities continued to conduct as many as 200 tests per day thereafter to try to detect any fresh outbreaks.
https://en.wikipedia.org/wiki?curid=1494572
1,406,356
330,370
If the muscles of the lower extremities are weak, it makes sense to prescribe custom-fabricated orthotics. Depending on which muscle groups are affected, the correct orthoses with appropriate functional elements should be prescribed. A weakness of the Musculus tibialis anterior, which lifts the feet, is usually accompanied by an atrophy of the Musculus gastrocnemius which, together with the Musculus soleus, forms the Musculus triceps surae (distal calf muscles), occurs causing the known "stork leg deformity". In most cases, ankle-foot orthoses that have functional elements for the foot lifting and adjustable control of the lowering of the forefoot make sense. Weak calf muscles lead to insufficient activation of the forefoot lever. This leads to an additional increasing uncertainty when standing and walking. If the calf muscles are weak, an orthosis should therefore be equipped with functional elements to activate the forefoot lever. An orthotic joint with an adjustable dynamic dorsiflexion stop with strong spring in combination with a lower leg shell in front of the shin is recommended for this. Such orthoses help to control foot drop, instability of the foot and ankle and offer the patient a better sense of balance when standing and walking without restricting mobility and the dynamics of the ankle joint. Studies confirm the positive effect of orthoses with adjustable functional elements in patients with paralysis of these muscle groups. It is of great advantage if the resistances of the two functional elements can be set separately from one another in the two directions of movement, dorsiflexion and plantar flexion.
https://en.wikipedia.org/wiki?curid=7845
330,195
809,555
If a DLC material is close enough to "ta-C" on plots of bonding ratios and hydrogen content it can be an insulator with a high value of resistivity. Perhaps more interesting is that if prepared in the "medium" cobblestone version such as shown in the above figure, electricity is passed through it by a mechanism of hopping conductivity. In this type of conduction of electricity the electrons move by quantum mechanical tunneling between pockets of conductive material isolated in an insulator. The result is that such a process makes the material something like a semiconductor. Further research on electrical properties is needed to explicate such conductivity in "ta-C" in order to determine its practical value. However, a different electrical property of emissivity has been shown to occur at unique levels for "ta-C". Such high values allow for electrons to be emitted from "ta-C" coated electrodes into vacuum or into other solids with application of modest levels of applied voltage. This has supported important advances in medical technology.
https://en.wikipedia.org/wiki?curid=1821411
809,124
2,195,552
In the first minute of the second half, Hull scored a pair of field goals to reduce the Buckeyes' deficit to a single point, 21–20. Afterwards, the Webfoots made the next four baskets, including a pair by Dick, to extend their lead to nine, about three minutes into the second half. The teams exchanged scores until Anet gave Oregon a 40–29 advantage. By this time, the Webfoots had entered into a stall, keeping the ball away from Ohio State. The Webfoots kept the lead in double digits for the rest of the game, and claimed the NCAA championship by a final score of 46–33. On behalf of the Webfoots, Anet was given the championship trophy in what Dick called "a two-handed trophy presentation". During the game, Anet had chased after a loose ball by the boundary, near the area where members of the media were located. He accidentally knocked the trophy off of a table, breaking a basketball player figure.
https://en.wikipedia.org/wiki?curid=58120988
2,194,302
1,900,105
Seyfarth is sometimes considered to be a "society architect", and an examination of the body of his known work will bear this out, but only to a certain extent. One client of this class, Willoughby G. Walling (1878–1938), of Winnetka, IL, is known to have mingled with European royalty and with at least one President of the United States in his capacity as the acting director general of the Department of Civilian Relief and as Vice-Chairman of the Central Committee of the American Red Cross. His brother William English Walling was recognized by W.E.B. Du Bois as the founder of the NAACP, and Willoughby himself "...became a major spokesman for the Chicago movement". Here he worked alongside the noted social reformer Jane Addams and some of Chicago's wealthiest and most influential citizens, including Mrs. Cyrus McCormick, Mrs. Emmons Blaine [whose father-in-law James G. Blaine was variously a Senator, the Speaker of the House and the Secretary of State for James Garfield and Chester A. Arthur] and Julius Rosenwald.
https://en.wikipedia.org/wiki?curid=24940492
1,899,017
1,186,354
Canada was another early user, with branch offices set up in Toronto in 1953. The first chain was installed in southwest Newfoundland in 1956 as part of a joint Canada-US Navy surveying program. This led to commercial deployments the next year in Nova Scotia and an inland system for air traffic in the busy Quebec City-Montreal area. A fourth chain covering eastern Newfoundland was added in 1958. When meetings in Montreal in 1958 led to VOR and DME being selected as the standard aviation navigation systems, the Montreal system was moved eastward to cover the Anticosti Island area of the Gulf of St. Lawrence, and the western Newfoundland chain was later repositioned to better cover the Cabot Strait. A series of chains was also proposed to cover the Northwest Passage had oil tanker traffic used the area, but this never came to be. Another was briefly set up covering Lake Ontario in 1971 for the International Field Year for the Great Lakes. The last Canadian chain shut down in 1986, after Loran-C became widespread.
https://en.wikipedia.org/wiki?curid=8949
1,185,725
384,320
The major innovation of this generation was of full utilization of the internet to allow a fully online gaming experience. While the prior generation had some systems with internet connectivity, such as the Apple Pippin, these had little market penetration and thus had limited success in the area. Services such as Microsoft's Xbox Live became industry standard in this, and future, generations. Another innovation of the Xbox was the first system to utilize an internal hard disk drive to store game data. This caused many improvements to the gaming experience, including the ability to store program data (rather than just save game data) that allowed for faster load times, as well as the ability to download games directly from the internet rather than to purchase physical media such as a disk or cartridge. Soon after its release other systems, like the Sony PlayStation 2, produced peripheral storage devices to allow similar capabilities, and by the next generation internal storage became industry standard.
https://en.wikipedia.org/wiki?curid=490610
384,125
1,325,340
Bunker Hill started employing women in the workforce again in 1972, which eventually included 30 in the smelter and 15 in the zinc plant, and the first to work underground. Yet, in 1975, the company banned fertile women from working in the smelter or zinc plant, due to the inherent risk. This type of ban was later prohibited due to "United Automobile Workers v. Johnson Controls, Inc.", 499 U.S. 187 (1991), which was a decision by the Supreme Court of the United States establishing that private sector policies prohibiting women from knowingly working in potentially hazardous occupations are discriminatory and in violation of Title VII and the Pregnancy Discrimination Act of 1978. The case revolved around Johnson Controls' policy of excluding fertile women from working in battery manufacturing jobs because batteries contain high amounts of lead, which entails health risks to people's reproductive systems (both men and women) and fetuses.
https://en.wikipedia.org/wiki?curid=32086133
1,324,613
1,573,603
The first three of these initial goals were accomplished early on. The club was recognized as a companion society of the IAP and its first scientific session was presented about a year later. The fourth goal took longer, but it, too, has been fulfilled as exemplified by a published study on adenomas with invasive carcinoma that was shepherded by Harry Cooper. It took e-mail technology to really allow the fifth goal, the referral network, to operate. The development of an e-mail group from the Society, which became an opportunity for members to consult a wide group of GI colleagues regarding problem cases, has been functional since 1995. The sixth goal, the registry issue, has yet to get off the ground. Currently, the Society awards prizes for resident presentations at the USCAP annual meeting and organizes educational symposia at national meetings, including the IAP, the American Society of Clinical Pathologists, Digestive Disease Week and the international congresses of the International Academy of Pathology.
https://en.wikipedia.org/wiki?curid=10741866
1,572,714
1,202,706
In many situations of interest to electrical engineering, it is not necessary to apply quantum theory to get correct results. Classical physics is still an accurate approximation in most situations involving macroscopic objects. With few exceptions, quantum theory is only necessary at the atomic scale and a simpler classical treatment can be applied. Further simplifications of treatment are possible in limited situations. Electrostatics deals only with stationary electric charges so magnetic fields do not arise and are not considered. Permanent magnets can be described without reference to electricity or electromagnetism. Circuit theory deals with electrical networks where the fields are largely confined around current carrying conductors. In such circuits, even Maxwell's equations can be dispensed with and simpler formulations used. On the other hand, a quantum treatment of electromagnetism is important in chemistry. Chemical reactions and chemical bonding are the result of quantum mechanical interactions of electrons around atoms. Quantum considerations are also necessary to explain the behaviour of many electronic devices, for instance the tunnel diode.
https://en.wikipedia.org/wiki?curid=58686423
1,202,063
2,214,118
The aim of the STEM mission is to increase the intake of Natural Science and Technology students in higher education. The mission is motivated by the increasing scarcity of people with Natural Science Masters and engineers in Denmark – if an intervention isn't instantiated. The engineer union IDA predicts a shortage of over 13,500 masters by 2025 in Denmark. To solve this problem, it is necessary to map the different choices the future student makes on the road to his or her final education choice. There is a need to determine how the course from kindergarten to the Natural Science university faculty looks like, to be able to identify the situations in which an intervention will have the greatest effect. In the STEM mission, we will identify the especially relevant points in the choice process which will be the focus of following efforts towards getting more people to choose a STEM education track – we do this through psychological insights in human behaviour and decision making.
https://en.wikipedia.org/wiki?curid=51001278
2,212,858
582,416
Microprocessor and computer controls on more modern machinery allow for greatly increased process control and repeatability of same-job setups from one production run with the ability to save oven heater and process timing settings between jobs. The ability to place formed sheets into an inline trim station for more precise trim registration has been improved due to the common use of electric servo motors for chain indexing versus air cylinders, gear racks, and clutches on older machines. Electric servo motors are also used on some modern and more sophisticated forming machines for actuation of the machine platens where form and trim tooling are mounted, rather than air cylinders which have traditionally been the industry standard, giving more precise control over closing and opening speeds and timing of the tooling. Quartz and radiant-panel oven heaters generally provide more precise and thorough sheet heating over older cal-rod type heaters, and better allow for zoning of ovens into areas of adjustable heat.
https://en.wikipedia.org/wiki?curid=1145863
582,118
1,830,042
Plasma immersion implantation is a technique suitable for low melting point materials such as polymers, and widely accepted to improve adhesion between pinhole free layers and substrates. The ultimate goal is to enhance the properties of biomaterials such as biocompatibility, corrosion resistance and functionality with the fabrication of different types of biomedical thin films with various biologically important elements such as nitrogen, calcium, and sodium implanted with them. Different thin films such as titanium oxide, titanium nitride, and diamond-like carbon have been treated previously, and results show that the processed material exhibit better biocompatibility compared to the some current ones used in biomedical implants. In order to evaluate the biocompatibility of the fabricated thin films, various in vitro biological environment need to be conducted.
https://en.wikipedia.org/wiki?curid=32004278
1,829,001
1,273,205
In the final pages of the book Darwin directly challenged the argument of divinely guided variation advocated by his friend and supporter the American botanist Asa Gray. He used the analogy of an architect using rocks which had broken off naturally and fallen to the foot of a cliff, asking "Can it be reasonably maintained that the Creator intentionally ordered ... that certain fragments should assume certain shapes so that the builder might erect his edifice?" In the same way, breeders or natural selection picked those that happened to be useful from variations arising by "general laws", to improve plants and animals, "man included". Darwin concluded with: "However much we may wish it, we can hardly follow Professor Asa Gray in his belief that 'variation has been along certain beneficial lines,' like a 'stream along definite and useful lines of irrigation'".
https://en.wikipedia.org/wiki?curid=24180994
1,272,513
967,255
Another key idea influencing the Planetary Boundaries framework is the Gaia theory or hypothesis. In the 1970s, James Lovelock and microbiologist Lynn Margulis presented the idea that all organisms and their inorganic surroundings on Earth are integrated into a single self-regulating system. The system has the ability to react to perturbations or deviations, much like a living organism adjusts its regulation mechanisms to accommodate environmental changes such as temperature (homeostasis). Nevertheless, this capacity has limits. For instance, when a living organism is subjected to a temperature that is lower or higher than its living range, it can perish because its regulating mechanism cannot make the necessary adjustments. Similarly the Earth may not be able to react to large deviations in critical parameters. In Lovelock's book "The Revenge of Gaia", he suggests that the destruction of rainforests and biodiversity, compounded with global warming resulting from the increase of greenhouse gases made by humans, could shift feedbacks in the Earth system away from a self-regulating balance to a positive (intensifying) feedback loop.
https://en.wikipedia.org/wiki?curid=24458151
966,745
315,876
Pharmacia & Upjohn (now part of Pfizer) started its own oxazolidinone research program in the 1990s. Studies of the compounds' structure–activity relationships led to the development of several subclasses of oxazolidinone derivatives, with varying safety profiles and antimicrobial activity. Two compounds were considered drug candidates: eperezolid (codenamed "PNU-100592") and linezolid ("PNU-100766"). In the preclinical stages of development, they were similar in safety and antibacterial activity, so they were taken to Phase I clinical trials to identify any difference in pharmacokinetics. Linezolid was found to have a pharmacokinetic advantage—requiring only twice-daily dosage, while eperezolid needed to be given three times a day to achieve similar exposure—and therefore proceeded to further trials. The U.S. Food and Drug Administration (FDA) approved linezolid on 18 April 2000. Approval followed in Brazil (June 2000), the United Kingdom (January 2001), Japan and Canada (April 2001), Europe (throughout 2001), and other countries in Latin America and Asia.
https://en.wikipedia.org/wiki?curid=424464
315,707
1,247,826
The humerus (upper arm bone) is rather simple, with a rounded head that forms the "ball" part of a ball-and-socket joint with the glenoid socket. The front outer edge of the bone has a low and rounded ridge known as a deltopectoral crest. Knob-like structures (condyles) are present at the underside of the distal portion of the bone. The radial condyle (capitulum) at the front is sometimes smaller than the ulnar condyle (trochlea) at the middle, which connects to an additional rear-facing "entepicondyle"(which in humans is twisted inwards as the medial epicondyle). These different knobs are all somewhat continuous with each other, with no deep grooves separating each of them. The ulna and radius (lower arm bones) are also rather simple, although certain features (such as convex outermost joints) are shared with other archosauriforms. The manus (hand), although jumbled in GR 138 (the only specimen to preserve forelimbs), still possessed recognizable elements such as metacarpals (main hand bones) and short phalanges (finger bones). The innermost (first) and outermost (fifth) metacarpals, which would have connected to the thumb and little finger in humans, are the shortest parts of the hand. The second metacarpal is longer, and the third and fourth are tied for the longest bones of the hand. Unguals (claws) have not been found, and the rounded ends of certain phalanges indicates that "Vancleavea" likely did not possess them.
https://en.wikipedia.org/wiki?curid=25282954
1,247,150
331,114
On 20 September 2021, Tianzhou 3 autonomous freighter was launched from the Wenchang Satellite Launch Center in preparation for the arrival of Shenzhou 13 crew. The Shenzhou 13 was the first six-month mission on the Tiangong station, whereas previous Shenzhou 12 was only three months in length. The Shenzhou 13 docked with the space station on 15 October 2021. Missions for the Shenzhou 13 crew included orbit experiments, spacewalks, and preparations for the station's future expansion. On 7 November 2021, Shenzhou 13 crew Zhai Zhigang and Wang Yaping conducted the first spacewalks to test the next-generation EVA suit and robotic "Chinarm", making Wang Yaping China's first female spacewalker. One of the missions in the 6.5-hour extravehicular activity was to install a dual-arm connector to the 10-meter-long robotic arm. The connector can provide the capability for "Chinarm" to extend in length with another 5-meter-long segment mounted on the "Wentian" module that will arrive in 2022. According to Gao Shen of the China Academy of Space Technology (CAST), the combined 15-meter "Chinarm" will have greater range and weight-carrying capacity. During spacewalks, various preparations were performed on the robotic arm for manipulation and construction of future modules.
https://en.wikipedia.org/wiki?curid=2481401
330,937
70,400
By the end of 1951 it became generally accepted at King's that the B-DNA was a helix, but after she had recorded an asymmetrical image in May 1952, Franklin became unconvinced that the A-DNA was a helix. In July 1952, as a practical joke on Wilkins (who frequently expressed his view that both forms of DNA were helical), Franklin and Gosling produced a funeral notice regretting the 'death' of helical A-DNA, which runs:It is with great regret that we have to announce the death, on Friday 18th July 1952 of DNA helix (crystalline). Death followed a protracted illness which an intensive course of Besselised [referring to Bessel function that was used to analyse the X-ray diffraction patterns] injections had failed to relieve. A memorial service will be held next Monday or Tuesday. It is hoped that Dr M H F Wilkins will speak in memory of the late helix. [Signed Rosalind Franklin and Raymond Gosling.]During 1952, they worked at applying the Patterson function to the X-ray pictures of DNA they had produced. This was a long and labour-intensive approach but would yield significant insight into the structure of the molecule. Franklin was fully committed to experimental data and was sternly against theoretical or model buildings, as she said, "We are not going to speculate, we are going to wait, we are going to let the spots on this photograph tell us what the [DNA] structure is." The X-ray diffraction pictures, including the landmark "Photo 51" taken by Gosling at this time, have been called by John Desmond Bernal as "amongst the most beautiful X-ray photographs of any substance ever taken".
https://en.wikipedia.org/wiki?curid=90472
70,373
1,316,205
For the "Uranverein", Bothe, and up to 6 members from his staff by 1942, worked on the experimental determination of atomic constants, the energy distribution of fission fragments, and nuclear cross sections. Bothe's erroneous experimental results on the absorption of neutrons in graphite were central in the German decision to favor heavy water as a neutron moderator. His value was too high; one conjecture being that this was due to air between the graphite pieces with the nitrogen having high neutron absorption. However the experimental setup involved a sphere of Siemens electro-graphite submerged in water, no air being present. The error in fast neutron cross-section was due to impurities in the Siemens product: "even the Siemens electro-Graphite contained Barium and Cadmium, both ravenous neutron-absorbers." In any event, there were so few staff or groups that they could not repeat experiments to check results, although in fact a separate group at Gottingen, led by Wilhelm Hanle, determined the cause of Bothe's error: "Hanle's own measurements would show that carbon, properly prepared, would in fact work perfectly well as a moderator, but at a cost of production in industrial quantities ruled prohibitive by [German] Army Ordnance".
https://en.wikipedia.org/wiki?curid=358425
1,315,480
860,330
A possible explanation for the cause of baryogenesis is the decay reaction of B-Mesogenesis. This phenomenon suggests that in the early universe, particles such as the B-meson decay into a visible Standard Model baryon as well as a dark antibaryon that is invisible to current observation techniques. The process begins by assuming a massive, long-lived, scalar particle formula_8 that exists in the early universe before Big Bang nucleosynthesis. The exact behavior of formula_8 is as yet unknown, but it is assumed to decay into "b" quarks and antiquarks in conditions outside of thermal equilibrium, thus satisfying one Sakharov condition. These "b" quarks form into B-mesons, which immediately hadronize into oscillating CP-violating formula_10 states, thus satisfying another Sakharov condition. These oscillating mesons then decay down into the baryon-dark antibaryon pair previously mentioned, formula_11, where formula_1 is the parent B-meson, formula_13 is the dark antibaryon, formula_14 is the visible baryon, and formula_15 is any extra light meson daughters required to satisfy other conservation laws in this particle decay. If this process occurs fast enough, the CP-violation effect gets carried over to the dark matter sector. However, this contradicts (or at least challenges) the last Sakharov condition, since the expected matter preference in the visible universe is balanced by a new antimatter preference in the dark matter of the universe and total baryon number is conserved.
https://en.wikipedia.org/wiki?curid=462396
859,872
760,624
The web has been a popular medium for storing and sharing photos ever since the first photograph was published on the web by Tim Berners-Lee in 1992 (an image of the CERN house band Les Horribles Cernettes). Today photo sharing sites such as Flickr, Picasa, and PhotoBucket, as well as social websites, are used by millions of people to share their pictures. In today's world digital photography and social media websites allow organizations and corporations to make photographs more accessible to a greater and more diverse population. For example, National Geographic Magazine has Twitter, Snapchat, Facebook, and Instagram accounts and each one includes content aimed at the type of audience that is a part of each social media community. It is also important to remember that digital photography has also had an impact in other fields, such as medicine. It has allowed doctors to help diagnose diabetic retinopathy and it is used in hospitals to diagnose and treat other diseases.
https://en.wikipedia.org/wiki?curid=3616597
760,218
1,294,086
Based on stable isotope levels, eight Cobern Street Burial Ground individuals consumed a diet based on C4 (tropical) plants in childhood, then consumed more C3 plants, which were more common at the Cape later in their lives. Six of these individuals had dental modifications similar to those carried out by peoples inhabiting tropical areas known to be targeted by slavers who brought enslaved individuals from other parts of Africa to the colony. Based on this evidence, it was argued that these individuals represent enslaved persons from areas of Africa where C4 plants are consumed and who were brought to the Cape as laborers. These individuals were not assigned to a specific ethnicity, but it is pointed out that similar dental modifications are carried out by the Makua, Yao, and Marav peoples. Four individuals were buried with no grave goods, in accordance with Muslim tradition, facing Signal Hill, which is a point of significance for local Muslims. Their isotopic signatures indicate that they grew up in a temperate environment consuming mostly C3 plants, but some C4 plants. Many of the isotopic signatures of interred individuals indicate that they Cox "et al". argue that these individuals were from the Indian Ocean area. They also suggest that these individuals were Muslims. It was argued that stable isotopic analysis of burials, combined with historical and archaeological data can be an effective way in of investigating the worldwide migrations forced by the African Slave Trade, as well as the emergence of the underclass and working class in the colonial Old World.
https://en.wikipedia.org/wiki?curid=1923764
1,293,375
1,946,478
The "Sverdlov"-class cruisers, Soviet designation Project 68bis, were the last conventional gun cruisers built for the Soviet Navy. They were built in the 1950s and were based on Soviet, German, and Italian designs and concepts developed prior to the Second World War. They were modified to improve their sea keeping capabilities, allowing them to run at high speed in the rough waters of the North Atlantic. The basic hull was more modern and had better armor protection than the vast majority of the post Second World War gun cruiser designs built and deployed by peer nations. They also carried an extensive suite of modern radar equipment and anti-aircraft artillery. The Soviets originally planned to build 40 ships in the class, which would be supported by the s and aircraft carriers.
https://en.wikipedia.org/wiki?curid=68479917
1,945,365
2,080,761
Archie is a humanoid robot, developed in TU Wien (TUW) in Austria and University of Manitoba in Canada.<ref name="http://kucitypic.kasetsart.org/kucity.com8/kucity8_robocup2009_Symposium/tdps/humanoid-teen/humanoid-teen_UofM-Humanoids.pdf"></ref> The development of Archie started in 2004 at the Institute of Handling Robots and Devices (IHRT) under supervision of Professor Peter Kopacek. Archie is in class a Teen size Humanoid and is over 120 cm tall. Lower body of Archie is designed and driven using brushless motors that are able to provide 50 Nm moment after the gearbox output. For Archie's joints Harmonic drives are employed in order to decreasing the size of the design and increasing the efficiency of the Robot. Each joint is controller individually and can provide a high performance motion control. All the joints are connected to central control unit using a customized high speed network. Archie's central controller unit is called Spinal system which is designed to control the whole robot as well as maintaining the balance of the robot. For the balance in the robot, the "Spinal system" uses the feedback from the joints and the data from an inertial measurement unit (IMU). Electronic design and implementation of Archie is done by Ahmad Byagowi as his PhD thesis required project.
https://en.wikipedia.org/wiki?curid=23667763
2,079,561
1,422,265
Brown and colleagues are establishing a new paradigm for waking patients up following general anesthesia. They have shown that the anesthetic state can be rapidly reversed by administering methylphenidate (Ritalin) or activation of dopaminergic systems. This suggests a new, feasible way to actively restore cognitive function in patients after anesthesia and sedation. They have received FDA approval to undertake a clinical trial to test this idea in humans (NCT 02051452). They have also shown that burst-suppression, a state of profound brain inactivation seen in deep general anesthesia, hypothermia, coma and developmental brain disorders, can be simply explained by a unifying neural-metabolic model. Brown’s group have also shown that burst suppression can be precisely controlled to maintain a therapeutic, medically-induced coma. This research uses a closed-loop control system based on his SSPP paradigm. This could have important implications for treating patients, such as Gabby Giffords, Michael Schumaker, Malala Yousafzai, and Joan Rivers, who sustain brain injuries or have intracranial hypertension and require a medically-induced coma to facilitate brain recovery.
https://en.wikipedia.org/wiki?curid=13891813
1,421,464
1,495,981
The HF radar CODAR SeaSonde and Helzel WERA are well established as a powerful tool for sea current measurements up to a range of 300 km. It operates in the HF and low VHF frequencies band corresponding to a radar wavelength in the range of 10 to 300m. The Doppler shift of the first order Bragg lines of the radar echo is used to derive sea current estimates in very much the same way as for the dual frequency microwave radar. Two radar installations are normally required, looking at the same patch of the sea surface from different angles. The latest generation of shore-based ocean radar can reach more than 200 km for ocean current mapping and more than 100 km for wave measurements Helzel WERA. For all ocean radars, the accuracy in range is excellent. With shorter ranges, the range resolution gets finer. The angular resolution and accuracy depends on the used antenna array configuration and applied algorithms (direction finding or beam forming). The WERA system provides the option to use both techniques; the compact version with direction finding or the array type antenna system with beam forming methods.
https://en.wikipedia.org/wiki?curid=14448292
1,495,139
655,023
Flies use indirect flight muscles to accomplish wing movement, and the beating haltere movements are driven by the same group of muscles (see dynamics section). In addition to the indirect flight muscles which are responsible for the flapping motion, there are also steering muscle which control the rotation/angle of the wings. Because halteres evolved from hindwings, the same complement of steering muscles exists for the other directions of movement as well. Chan "et al." (1998) identified 10 direct control muscles in the haltere similar to those found in the forewing. In 1998, Chan and Dickinson proposed that the planned haltere movements (without external forces acting on them) were what initiated planned turns. To explain this, imagine a fly that wishes to turn to the right. Unfortunately, as soon as it does, the halteres sense a body rotation and reflexively correct the turn, preventing the fly from changing direction. Chan and Dickinson (1998) suggested that what the fly does to prevent this from occurring is to first move its halteres as if it were being pushed in the opposite direction that it wants to go. The fly has not moved, but the halteres have sensed a perturbation. This would allow the haltere-initiated reflex to occur, correcting the imagined perturbation. The fly would then be able to execute its turn in the desired direction. This is not how flies actually turn. Mureli and Fox (2015) showed that flies are still capable of performing planned turns even when their halteres have been removed entirely.
https://en.wikipedia.org/wiki?curid=46080
654,679