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Backward error analysis, the theory of which was developed and popularized by James H. Wilkinson, can be used to establish that an algorithm implementing a numerical function is numerically stable. The basic approach is to show that although the calculated result, due to roundoff errors, will not be exactly correct, it...
https://en.wikipedia.org/wiki?curid=11376
329,546
1,291,784
Backward error analysis, the theory of which was developed and popularized by James H. Wilkinson, can be used to establish that an algorithm implementing a numerical function is numerically stable. The basic approach is to show that although the calculated result, due to roundoff errors, will not be exactly correct, it...
https://en.wikipedia.org/wiki?curid=44281046
1,291,074
702,059
The university derives from Robert Gordon's Hospital, an institution set up in the mid-18th century to provide the poor with a basic education and reasonable start in life, and the various educational institutions which developed in Aberdeen to provide adults with technical, vocational and artistic training, mostly in ...
https://en.wikipedia.org/wiki?curid=381864
701,694
1,809,606
"When the Institute was founded in 1963, is main goal was an "introduction on the mathematical methods and computers in the practice of planning, creation of the theory of the optimal control of the national economy". In fact, the initial founding vision of the Institute was more ambitious. Of six founding research obj...
https://en.wikipedia.org/wiki?curid=9590055
1,808,585
2,227,355
Perspicuibacter marinus is smooth, lenticular, light yellow, semi-translucent, circular colonies with a fluttered edge found on surface seawater at Muroto city, Kochi prefecture, Japan. “Cells contain carotenoid(s), and the dominant carotenoid that anatomically similar to beta carotene. Cells are 0.3–0.860.8–3.0 mm, gr...
https://en.wikipedia.org/wiki?curid=63275795
2,226,091
759,125
As they approach the time when they are ready to migrate out to the sea the parr lose their camouflage bars and undergo a process of physiological changes which allows them to survive the shift from freshwater to saltwater. At this point salmon are called "smolt". Smolt spend time in the brackish waters of the river es...
https://en.wikipedia.org/wiki?curid=907207
758,719
831,609
In a conventional oil refinery, isobutane is alkylated with low-molecular-weight alkenes (primarily a mixture of propene and butene) in the presence of a Brønsted acid catalyst, which can include solid acids (zeolites). The catalyst protonates the alkenes (propene, butene) to produce carbocations, which alkylate isobut...
https://en.wikipedia.org/wiki?curid=487433
831,160
1,688,377
The presence of cholesterol exerts a profound but complicated influence on lipid bilayer properties because of its unique physical characteristics. Although it is a lipid, cholesterol bears little resemblance to a phospholipid. The hydrophilic domain of cholesterol is quite small, consisting of a single hydroxyl group....
https://en.wikipedia.org/wiki?curid=21465708
1,687,431
184,324
From his experiences on board "Belgica" and "Gjøa", Amundsen had learned the importance on a long voyages of stable and compatible companions, and with these experienced personnel he felt he had the core of his expedition. He continued to recruit through 1909; the "Fram" party would eventually total 19. All of these ex...
https://en.wikipedia.org/wiki?curid=15021680
184,227
1,514,239
The research of Takahashi has led to many developments in understanding how the circadian clock of mammals affects physiology and relationships with the environment. In 1993, Takahashi and Michael Greenberg studied the mechanisms of mammalian suprachiasmatic nuclei entrainment to environmental light cycles. They explor...
https://en.wikipedia.org/wiki?curid=22604261
1,513,388
2,072,526
Matrix metalloproteinases (MMPs) are zinc endopeptidases, commonly called metzincins. MMP enzymes represent an ancient family of proteins with major similarities in genetic make-up that are present in a range of diverse organisms from unicellular bacteria to multicellular vertebrates and invertebrates. The superfamily ...
https://en.wikipedia.org/wiki?curid=29961903
2,071,335
134,929
In 2003, when his lab was still small, Sinclair learned that scientists at a Pennsylvania biotech company called Biomol Research Laboratories discovered that polyphenols including resveratrol could activate "sir2", and he collaborated with them to confirm this. This led to publications authored in part by Sinclair in b...
https://en.wikipedia.org/wiki?curid=7804853
134,874
728,825
In humans, "S. saprophyticus" is found in the normal flora of the female genital tract and perineum. It has been isolated from other sources, too, including meat and cheese products, vegetables, the environment, and human and animal gastrointestinal tracts. "S. saprophyticus" causes 10–20% of urinary tract infections (...
https://en.wikipedia.org/wiki?curid=2220736
728,441
234,853
Jewish religious belief defines the land as where Jewish religious law prevailed and excludes territory where it was not applied. It holds that the area is a God-given inheritance of the Jewish people based on the Torah, particularly the books of Genesis and Exodus, as well as on the later Prophets. According to the Bo...
https://en.wikipedia.org/wiki?curid=33610767
234,734
78,810
Boron has two naturally occurring and stable isotopes, B (80.1%) and B (19.9%). The mass difference results in a wide range of δB values, which are defined as a fractional difference between the B and B and traditionally expressed in parts per thousand, in natural waters ranging from −16 to +59. There are 13 known isot...
https://en.wikipedia.org/wiki?curid=3755
78,777
265,341
The elevation of continental surface, often as mountain formation, is thought to have contributed to cause the Quaternary glaciation. The gradual movement of the bulk of Earth's landmasses away from the tropics in addition to increased mountain formation in the Late Cenozoic meant more land at high altitude and high la...
https://en.wikipedia.org/wiki?curid=3720257
265,198
990,943
In what historian Andrew Watson called the Arab Agricultural Revolution, the Arab Muslim rulers of much of Al Andalus (8th through the 15th centuries) introduced or popularized a large number of new crops and new agricultural technology into the Iberian peninsula (Spain and Portugal). The crops introduced by the Arabs ...
https://en.wikipedia.org/wiki?curid=52992201
990,426
1,925,897
The Erste Bank Ice Hockey League has developed into an international league over the last few years, with four out of twelve participating teams coming from neighboring countries. Likewise, problems with the legionnaires' regime arose over time, which were changed and liberalized several times, especially on the initia...
https://en.wikipedia.org/wiki?curid=35607640
1,924,793
768,563
Concern peaked in the early 1970s, though "the possibility of anthropogenic warming dominated the peer-reviewed literature even then" (a cooling period began in 1945, and two decades of a cooling trend suggested a trough had been reached after several decades of warming). This peaking concern is partially attributable ...
https://en.wikipedia.org/wiki?curid=295445
768,151
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The gravitational slingshot technique uses the gravity of planets and moons to change the speed and direction of a spacecraft without using fuel. In typical example, a spacecraft is sent to a distant planet on a path that is much faster than what the Hohmann transfer would call for. This would typically mean that it wo...
https://en.wikipedia.org/wiki?curid=15111
693,154
180,266
On 17 June 1951, at 01:30 hours, Suwon Air Base was bombed by two Po-2s. Each biplane dropped a pair of fragmentation bombs. One scored a hit on the 802nd Engineer Aviation Battalion's motor pool, damaging some equipment. Two bombs burst on the flightline of the 335th Fighter Interceptor Squadron. One F-86A Sabre (FU-3...
https://en.wikipedia.org/wiki?curid=1351230
180,172
65,262
On 17 June 1951, at 01:30 hours, Suwon Air Base was bombed by two Polikarpov Po-2 biplanes. Each Po-2 dropped a pair of fragmentation bombs: one scored a hit on the 802nd Engineer Aviation Battalion's motor pool, damaging some equipment. Two bombs burst on the flightline of the 335th Fighter Interceptor Squadron. One F...
https://en.wikipedia.org/wiki?curid=359331
65,237
1,875,098
Nevertheless, experimental studies about the growth rate of the electrothermal instability and the critical conditions showed that a stability region still exists for high electron temperatures. The stability is given by a quick transition to "fully ionized" conditions (fast enough to overtake the growth rate of the el...
https://en.wikipedia.org/wiki?curid=18935256
1,874,021
1,479,300
By the middle 1990s, despite the extant investment in older operating systems, the trend was toward the use of Unix-based systems, which also facilitated the use of interactive graphical user interfaces (GUIs) for scientific computing across multiple platforms. The move toward a "commodity OS" had opponents, who cited ...
https://en.wikipedia.org/wiki?curid=34886007
1,478,467
893,551
The Newton–Leibniz approach to infinitesimal calculus was introduced in the 17th century. While Newton worked with fluxions and fluents, Leibniz based his approach on generalizations of sums and differences. Leibniz was the first to use the formula_3 character. He based the character on the Latin word "summa" ("sum"), ...
https://en.wikipedia.org/wiki?curid=410712
893,081
12,979
The Soviets supplied another 63,000 tons, mainly to Syria, by means of a sealift by October 30. Historian Gamal Hammad asserts that 400 T-55 and T-62 tanks supplied by the sealift were directed towards replacing Syrian losses, transported from Odessa on the Black Sea to the Syrian port of Latakia. Hammad claimed that E...
https://en.wikipedia.org/wiki?curid=34276
12,974
1,236,358
Immediately after the DVD standard was settled in 1996, Philips and Sony, disappointed after the DVD failure, decided to develop a next-generation blue-laser-based digital video recorder (DVR), which would be positioned as DVD's high-density successor. Philips and Sony set up a joint task force, where Immink and his co...
https://en.wikipedia.org/wiki?curid=1556788
1,235,694
1,467,121
European Colonialism from the 16th to the early 20th centuries led to an imposition of a European colonies in many regions of the world, particularly in the Americas, South Asia, Sub-Saharan Africa and Australia, where European languages remain either prevalent or in frequent use as administrative languages. Major huma...
https://en.wikipedia.org/wiki?curid=9458703
1,466,298
473,063
The Delta 2 soundly demonstrated its favourable high-speed performance qualities during flight testing; rapidly proving to be faster than any other British-built aircraft in existence of that time. On 10 March 1956, the Fairey Delta 2 broke the world airspeed record, raising it to 1,132 mph (1,811 km/h) or Mach 1.73. T...
https://en.wikipedia.org/wiki?curid=2169866
472,827
821,498
Ethical questions have been raised regarding the blood collection process due to the potential suffering caused to the fetus. There has been discussion concerning the methodologies for the collection of fetal bovine serum. The International Serum Industry Association (ISIA) has published literature providing detail on ...
https://en.wikipedia.org/wiki?curid=2310294
821,057
1,413,915
As for gravity, the first studies concerning this new concept were performed in formula_5 spacetime dimensions in the late seventies. In exactly two dimensions there is a theory of pure gravity that is renormalizable according to the old point of view. (In order to render the Einstein–Hilbert action formula_6 dimension...
https://en.wikipedia.org/wiki?curid=37596615
1,413,119
1,442,923
The Italian Government nominated Chamber of Deputies member Giuseppe Zamberletti as coordinator of aid efforts on behalf of the regional administration. The national funds were assigned to the reconstruction of the damaged buildings by Zamberletti and the regional council of Friuli Venezia Giulia. From September to Dec...
https://en.wikipedia.org/wiki?curid=20641000
1,442,110
1,203,869
Christiania, promoted to the status of a capital city in 1814, had practically no buildings suitable for the many new government institutions. An ambitious building program was initiated, but realised very slowly because of a strained economy. The first major undertaking was the Royal Palace, designed by Hans Linstow a...
https://en.wikipedia.org/wiki?curid=3552855
1,203,224
1,035,752
The first Porsche flat-eight was the Type 753. Work began on it in 1960, following the announcement of a displacement limit for the 1961 Formula One season. Designed by Hans Mezger and Hans Honich, the engine includes features shaft-driven double-overhead camshafts, a two-piece magnesium crankcase casting, eight indivi...
https://en.wikipedia.org/wiki?curid=3015566
1,035,212
211,096
After James Chadwick discovered the neutron in 1932, Irène Curie and Frédéric Joliot irradiated aluminium foil with alpha particles, they found that this results in a short-lived radioactive isotope of phosphorus. They noted that positron emission continued after the neutron emissions ceased. Not only had they discover...
https://en.wikipedia.org/wiki?curid=46825
210,989
759,844
At the moment only rigorously tested humans have experienced the conditions of space. If off-world colonization someday begins, many types of people will be exposed to these dangers, and the effects on the very young are completely unknown. On October 29, 1998, John Glenn, one of the original Mercury 7, returned to spa...
https://en.wikipedia.org/wiki?curid=1614102
759,438
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The fifth class encompassed a wide variety of levels of difficulty in roped free climbing, however, and the system began to be refined by climbers at Tahquitz Peak in Southern California. Fifth-class climbs were initially described as easy, moderate, or hard. This was found to be too coarse-grained, so Royal Robbins, D...
https://en.wikipedia.org/wiki?curid=334309
230,974
1,972,420
The intensity emitted from the surface is then recorded through a long-pass filter by a CCD or scientific grade camera and stored for conversion to pressure using a previously determined calibration. Images of the paint layer are recorded at three conditions. A wind-off image at a known reference condition which is typ...
https://en.wikipedia.org/wiki?curid=22159541
1,971,286
246,586
In recent years, the debate surrounding the nativist position has centered on whether the inborn capabilities are language-specific or domain-general, such as those that enable the infant to visually make sense of the world in terms of objects and actions. The anti-nativist view has many strands, but a frequent theme i...
https://en.wikipedia.org/wiki?curid=18614
246,459
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ELI’s research is organized into six major areas: climate and energy; international programs; environmental governance; environmental health; land and biodiversity; and freshwater and ocean resources. Under each of these six umbrellas are the research programs, most of which are managed independently of other programs....
https://en.wikipedia.org/wiki?curid=14559342
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Mark Z. Jacobson, professor of civil and environmental engineering at Stanford University and director of its Atmosphere and Energy program, says that producing all new energy with wind power, solar power, and hydropower by 2030 is feasible, and that existing energy supply arrangements could be replaced by 2050. Barrie...
https://en.wikipedia.org/wiki?curid=39208945
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The desensitization is a reversible phenomenon. It begins a few hours after capsaicin application and may last even several weeks. The reversible desensitization was found useful in the treatment of pain, whereas the site-specific ablation of sensory nerves transmitting pain stimuli is a promising approach (‘molecular ...
https://en.wikipedia.org/wiki?curid=33004989
1,524,772
1,079,246
The "New England Journal of Medicine" reported a case study of a patient whose wife secretly gave him a dose of a product called "tartaro emetico" which contained trivalent antimony (antimony potassium tartrate) and is sold in Central America as an aversive treatment for alcohol use disorder. The patient, who had been ...
https://en.wikipedia.org/wiki?curid=34458244
1,078,691
961,033
The genetic basis of cancer was recognised in 1902 by the German zoologist Theodor Boveri, professor of zoology at Munich and later in Würzburg. He discovered a method to generate cells with multiple copies of the centrosome, a structure he discovered and named. He postulated that chromosomes were distinct and transmit...
https://en.wikipedia.org/wiki?curid=34249574
960,524
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Space Applications Services was founded in 1987. The initial business line was Human Spaceflight focused on the definition of the European Manned Space Infrastructure. In 1995 a Robotics Team was reestablished, closely followed in 1999 by the Future Projects and Exploration Team and in 2000 by the Flight systems, Avion...
https://en.wikipedia.org/wiki?curid=62085151
2,016,772
1,256,829
In this type of CWKPS the fast-motion of the flying blades or wings harvest the wind's energy to power the lifting capacity of the system. Mass loads are sometimes close-coupled with the wing set; at other times the mass lifted is distributed along the tether set. A military use of this type involved rotor kites tether...
https://en.wikipedia.org/wiki?curid=39562189
1,256,145
2,119,299
In all the talk of rational drug use, the impact of the pharmaceutical industry cannot be ignored, with its many incentive schemes for doctors and pharmacy staff who dispense, advise or encourage use of particular products. These issues have been highlighted in a study of pharmaceutical sales representative (medreps) i...
https://en.wikipedia.org/wiki?curid=8858789
2,118,080
10,064
Tennessee Eastman was contracted to manage Y-12 on the usual cost plus fixed-fee basis, with a fee of $22,500 per month plus $7,500 per racetrack for the first seven racetracks and $4,000 per additional racetrack. The calutrons were initially operated by scientists from Berkeley to remove bugs and achieve a reasonable ...
https://en.wikipedia.org/wiki?curid=19603
10,060
1,188,041
Secretions, presumably from the glandular part of the penis wall, are probably transferred by the sarcobela during this mutual stroking. These secretions have several possible functions, including physiological stimulation and synchronisation, partner labelling or manipulation. Labelling may benefit the donor by helpin...
https://en.wikipedia.org/wiki?curid=42652520
1,187,410
735,221
Self-healing materials are artificial or synthetically created substances that have the built-in ability to automatically repair damages to themselves without any external diagnosis of the problem or human intervention. Generally, materials will degrade over time due to fatigue, environmental conditions, or damage incu...
https://en.wikipedia.org/wiki?curid=5824713
734,834
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Even the elite had simple buildings, with a central fire and a hole in the roof to let the smoke escape and the largest of which rarely had more than one floor, and one room. Buildings vary widely in size, most were square or rectangular, though some round houses have been found. Frequently these buildings have sunken ...
https://en.wikipedia.org/wiki?curid=335144
657,068
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Few other cooling applications approach the large volumes of water required to condense low pressure steam at power stations. Many facilities, particularly electric power plants, use millions of gallons of water per day for cooling. Water cooling on this scale may alter natural water environments and create new environ...
https://en.wikipedia.org/wiki?curid=531184
703,670
888,146
Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae. In traditional and currently no longer supported classification schemes, Amoebozoa is ranked as a phylum within either the kingdom ...
https://en.wikipedia.org/wiki?curid=518489
887,678
1,230,332
For the main part seismically generated landslides usually do not differ in their morphology and internal processes from those generated under non-seismic conditions. However, they tend to be more widespread and sudden. The most abundant types of earthquake-induced landslides are rock falls and slides of rock fragments...
https://en.wikipedia.org/wiki?curid=9597934
1,229,670
862,029
After Khruschev's removal from office in late 1964 and the rise of Leonid Brezhnev, the ageing Tupolev gradually lost positions at the centres of Soviet power to rivals in the aircraft industry. The prestigious Tu-144 programme enjoyed top level support until 1973, as did the important Tu-154 airliner, but the favored ...
https://en.wikipedia.org/wiki?curid=163504
861,570
1,067,396
The UNESCO study of publication trends in 193 countries on the topic of new or re-emerging viruses that can infect humans covered the period from 2011 to 2019 and now provides an overview of the state of research prior to the COVID-19 pandemic. Global output on this broad topic increased by only 2% per year between 201...
https://en.wikipedia.org/wiki?curid=63478388
1,066,842
858,720
Whereas Greek boys primarily received their education from the community, a Roman child's first and most important educators were almost always his or her parents. Parents taught their children the skills necessary for living in the early republic, which included agricultural, domestic, and military skills as well as t...
https://en.wikipedia.org/wiki?curid=11014417
858,262
15,149
Kasparov actively coached Magnus Carlsen for approximately one year, beginning in February 2009. The collaboration remained secret until September 2009. Under Kasparov's tutelage, Carlsen in October 2009 became the youngest ever to achieve a FIDE rating higher than 2800, and he rose from world number four to world numb...
https://en.wikipedia.org/wiki?curid=12810
15,144
1,500,857
Hitchcock was an advocate of gap creationism. Hitchcock saw God as the agent of change. He explicitly rejected evolution and a religious six-day creation. He perceived that new species were introduced by a Deity at the right time in the history of the earth. The chart is present in all editions between 1840 and 1859. A...
https://en.wikipedia.org/wiki?curid=832892
1,500,011
1,736,681
Model studies indicate that PG (but not specific antigens or IgE cross-linkage) stimulates mouse and human mast cells to release histamine by an EP-dependent mechanism. Furthermore, EP-deficient mice fail to develop increased capillary permeability and tissue swelling in response to EP receptor agonists and the metabol...
https://en.wikipedia.org/wiki?curid=14522546
1,735,704
1,410,271
Prior to World War II, the rhombic was one of the most popular point-to-point high frequency antenna arrays. After World War II the rhombic largely fell out of favor for shortwave broadcast and point-to-point communications work, being replaced by log periodic antennas and curtain arrays. Larger log periodics provide w...
https://en.wikipedia.org/wiki?curid=373712
1,409,479
988,220
The process was invented in 1948 by Swiss engineer Robert Durrer and commercialized in 1952–1953 by the Austrian steelmaking company VOEST and ÖAMG. The LD converter, named after the Austrian towns Linz and Donawitz (a district of Leoben) is a refined version of the Bessemer converter where blowing of air is replaced w...
https://en.wikipedia.org/wiki?curid=945488
987,704
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Another application seeks to use the vibrations created during flight in aircraft to power the electronics on the plane that currently rely on batteries. Such a system would allow for a reliable energy source, and reduce maintenance as batteries would no longer need to be replaced and piezoelectric systems have a long ...
https://en.wikipedia.org/wiki?curid=12185896
1,269,436
117,633
In the 20th century, the advancements in vaccinations helped to reduce the incidence of childhood pertussis and had a dramatically positive effect on the health of populations in the United States. However, in the early 21st century, reported instances of the disease increased 20-fold due to a downturn in the number of...
https://en.wikipedia.org/wiki?curid=876719
117,588
976,948
Angular resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small details of an object, thereby making it a major determinant of image resolution. It is used in optics applied to light waves, in antenna theory applied to r...
https://en.wikipedia.org/wiki?curid=230428
976,437
364,428
"Doom" was released to positive reception regarding the fast-paced gameplay, single-player campaign, visuals and soundtrack whereas criticism was predominantly toward the multiplayer mode. Many critics believed that "Doom" was a successful return to form for the series. Following the wide release, the game received sco...
https://en.wikipedia.org/wiki?curid=12915762
364,238
1,504,412
On 27 January 2014, Kotov did perform his sixth spacewalk outside the ISS with cosmonaut Ryazansky. The cosmonauts completed work that could not be finished up during their last spacewalk on December 27. After exiting the Pirs docking compartment, the two cosmonauts arrived at the outside of the Zvezda service module. ...
https://en.wikipedia.org/wiki?curid=6166648
1,503,566
313,560
There is no proven risk of biological harm from even very powerful static magnetic fields. However, genotoxic (i.e., potentially carcinogenic) effects of MRI scanning have been demonstrated in vivo and in vitro, leading a recent review to recommend "a need for further studies and prudent use in order to avoid unnecessa...
https://en.wikipedia.org/wiki?curid=226722
313,391
1,371,177
In January 2012, the MTA introduced a new maintenance program, FASTRACK, to speed up repair work. This program involves a more drastic approach than previous construction, and completely shuts down a major portion of a line for overnight work on four consecutive weeknights from 10 p.m. to 6 a.m. According to the MTA, t...
https://en.wikipedia.org/wiki?curid=55208663
1,370,420
435,045
After singing has finished, the principal wearing a Japanese style tuxedo or black tie goes to the podium. Usually a female teacher wearing a hakama brings out diplomas on a large tray. The homeroom teacher for each class calls out the names of his or her students in gender-split alphabetical order. Recently some schoo...
https://en.wikipedia.org/wiki?curid=36053943
434,831
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Reactive astrocytes are the main cellular component of the glial scar. After injury, astrocytes undergo morphological changes, extend their processes, and increase synthesis of glial fibrillary acidic protein (GFAP). GFAP is an important intermediate filament protein that allows the astrocytes to begin synthesizing mor...
https://en.wikipedia.org/wiki?curid=13965883
1,224,348
1,459,183
Notable works by Morris include "Gloria" (1981), set to Vivaldi; "Championship Wrestling" (1985), based on an essay by Roland Barthes; "L'Allegro, il Penseroso ed il Moderato" (1988); "Dido and Æneas" (1989); "The Hard Nut" (1991), his version of "The Nutcracker" set in the 1970s; "Grand Duo" (1993); "The Office" (1995...
https://en.wikipedia.org/wiki?curid=1699981
1,458,362
1,316,204
The German nuclear energy project, also known as the "Uranverein" (Uranium Club), began in the spring of 1939 under the auspices of the "Reichsforschungsrat" (RFR, Reich Research Council) of the "Reichserziehungsministerium" (REM, Reich Ministry of Education). By 1 September, the "Heereswaffenamt" (HWA, Army Ordnance O...
https://en.wikipedia.org/wiki?curid=358425
1,315,479
180,365
The EPR underwent Generic Design Assessment by the Office for Nuclear Regulation, along with the Westinghouse AP1000. Interim Design Acceptance Confirmations were postponed until lessons from the Fukushima Daiichi nuclear disaster had been taken into account. EDF bought British Energy in 2009. EDF planned to build 4 ne...
https://en.wikipedia.org/wiki?curid=1636371
180,271
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Criticisms of Keynes's ideas had begun to gain significant acceptance by the early 1970s, as they were then able to make a credible case that Keynesian models no longer reflected economic reality. Keynes himself included few formulas and no explicit mathematical models in his "General Theory". For economists such as Hy...
https://en.wikipedia.org/wiki?curid=37973
49,226
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Returning to Europe, he studied architecture in Paris (with J. F. Blondel) and spent five years in Italy. Then, in 1755, he moved to London, where he established an architectural practice. In 1757, through a recommendation of Lord Bute, he was appointed architectural tutor to the Prince of Wales, later George III, and ...
https://en.wikipedia.org/wiki?curid=143684
1,467,276
1,459,910
On 18 July 2018, an explosion was reported at Liebherr-Aerospace's, Toulouse site. According to news reports, a valve on a high pressure air circulation system on the shop floor failed due to undetermined reasons. According to one of the reports, the explosion of the high pressure air lines was heard kilometres away. T...
https://en.wikipedia.org/wiki?curid=57777461
1,459,088
437,910
Menthyl isovalerate, also known as validolum, is the menthyl ester of isovaleric acid. It is a transparent oily, colorless liquid with a smell of menthol. It is very slightly soluble in ethanol, while practically insoluble in water. It is used as a food additive for flavor and fragrance. It is produced by typical ester...
https://en.wikipedia.org/wiki?curid=6082508
437,696
1,376,836
Space-based observations at the submillimetre wavelengths remove the ground-based limitations of atmospheric absorption. The first submillimeter telescope in space was the Soviet BST-1M, located in the scientific equipment compartment of the Salyut-6 orbital station. It was equipped with a mirror with a diameter of 1.5...
https://en.wikipedia.org/wiki?curid=2088221
1,376,074
848,759
Other work centers on a 1977 theoretical model (the Charnov–Bull model), predicted that selection should favour TSD over chromosome-based systems when "the developmental environment differentially influences male versus female fitness"; this theoretical model was empirically validated thirty years later but the general...
https://en.wikipedia.org/wiki?curid=9975050
848,309
1,374,099
Dawn of Humanity is a 2015 American documentary film that was released online on September 10, 2015, and aired nationwide in the United States on September 16, 2015. The PBS NOVA National Geographic film, in one episode of two hours, was directed and produced by Graham Townsley. The film describes the 2013 discovery, a...
https://en.wikipedia.org/wiki?curid=47784311
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With Godfrey Hounsfield's invention of computed tomography (CT) in 1971, three-dimensional planning became a possibility and created a shift from 2-D to 3-D radiation delivery. CT-based planning allows physicians to more accurately determine the dose distribution using axial tomographic images of the patient's anatomy....
https://en.wikipedia.org/wiki?curid=26350
130,860
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where formula_3 is the spatial coordinate, formula_4 is a particle index, formula_5 is the separation distance between particles formula_1 and formula_4, formula_8 is the unit vector from particle formula_4 to particle formula_1, formula_11 is the force magnitude, and formula_12 and formula_13 are the charges of partic...
https://en.wikipedia.org/wiki?curid=46605227
2,135,285
1,168,054
Her second patrol, from 30 January-28 February, was in the Molucca Sea, east of Sulawesi. On 4 February off Kendari, Java, she fired three torpedoes at a Japanese destroyer. Two hits inflicted heavy damage. After the war, Japanese records revealed had beached herself, and was later salvaged. Three nights later, "Sculpi...
https://en.wikipedia.org/wiki?curid=440487
1,167,436
882,031
In 2016, Wiltschko and colleagues showed that cryptochrome can be activated in the dark, removing the objection that the blue light-activated mechanism would not work when birds were migrating at night. A different radical pair is formed by re-oxidation of fully-reduced FADH. Experiments with European robins, using fli...
https://en.wikipedia.org/wiki?curid=1506351
881,567
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Current research is focused on reducing or replacing Ni content in the anode to improve long-term performance. The modified Ni-YSZ containing other materials including CeO, YO, LaO, MgO, TiO, Ru, Co, etc. are invented to resist sulfur poisoning, but the improvement is limited due to the rapid initial degradation. Coppe...
https://en.wikipedia.org/wiki?curid=1049636
915,386
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Very little is known about nihonium, as it has only been made in very small amounts that decay within seconds. The anomalously long lives of some superheavy nuclides, including some nihonium isotopes, are explained by the "island of stability" theory. Experiments support the theory, with the half-lives of the confirmed...
https://en.wikipedia.org/wiki?curid=77474
201,732
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Cryptocrystalline or amorphous stone such as chert, flint, obsidian, and chalcedony, as well as other fine-grained stone material, such as rhyolite, felsite, and quartzite, were used as a source material for producing stone tools. As these materials lack natural planes of separation, conchoidal fractures occur when the...
https://en.wikipedia.org/wiki?curid=140305
438,263
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The LaMer model for the kinetics of the formation of hydrosols is widely applicable for production of monodisperse systems, and it was originally hypothesized that the Stöber process followed this monomer addition model. This model includes a rapid burst of nucleation forming all of the particle growth sites, then proc...
https://en.wikipedia.org/wiki?curid=32297166
1,071,063
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In 2007, Boeing proposed additional F/A-18E/Fs to the U.S. Navy in a multi-year contract. As of October 2008, Boeing had delivered 367 Super Hornets to the U.S. Navy. On 6 April 2009, Defense Secretary Robert Gates announced that the Department of Defense (DOD) intended to acquire 31 F/A-18s in FY2010. Congress request...
https://en.wikipedia.org/wiki?curid=845012
6,914
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Sheffield was selected as the host for the 1991 Universiade at a meeting of FISU's (Federation Internationale du Sport Universitaire) Executive Committee in the city in February 1987. In the runup to the games, Sheffield Central MP Richard Caborn claimed that the Games would:'be three times bigger than the Commonwealth...
https://en.wikipedia.org/wiki?curid=4240830
1,435,481
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The best-known version of the experiment was started in 1927 by Professor Thomas Parnell of the University of Queensland in Brisbane, Australia, to demonstrate to students that some substances which appear solid are highly viscous fluids. Parnell poured a heated sample of the pitch into a sealed funnel and allowed it t...
https://en.wikipedia.org/wiki?curid=250107
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The American Recovery and Reinvestment Act, signed into law in 2009 under the Obama Administration, has provided approximately $19 billion in incentives for hospitals to shift from paper to electronic medical records. Meaningful Use, as a part of the 2009 Health Information Technology for Economic and Clinical Health A...
https://en.wikipedia.org/wiki?curid=19565233
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The process of collecting data from samples using the flow cytometer is termed "acquisition". Acquisition is mediated by a computer physically connected to the flow cytometer, and the software which handles the digital interface with the cytometer. The software is capable of adjusting parameters (e.g., voltage, compens...
https://en.wikipedia.org/wiki?curid=501216
410,125
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MagLIF has characteristics of both inertial confinement fusion (due to the usage of a laser and pulsed compression) and magnetic confinement (due to the utilization of a powerful magnetic field to inhibit thermal conduction and contain the plasma). In results published in 2012, a LASNEX based computer simulation of a 7...
https://en.wikipedia.org/wiki?curid=35427896
2,143,936
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The 1960s was a period in which researchers in mechanics and materials science greatly increased their interactions. Solid mechanics became increasingly focused on problems arising in materials. On the mechanics side, Budiansky at Harvard and Frank McClintock at MIT were pioneers in this shift in emphasis and both cont...
https://en.wikipedia.org/wiki?curid=4605312
1,653,068
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Archaeological research and preservation efforts have been exploited by both Palestinians and Israelis for partisan ends. Rather than attempting to understand "the natural process of demolition, eradication, rebuilding, evasion, and ideological reinterpretation that has permitted ancient rulers and modern groups to cla...
https://en.wikipedia.org/wiki?curid=673123
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People with cerebellar ataxia may initially present with poor balance, which could be demonstrated as an inability to stand on one leg or perform tandem gait. As the condition progresses, walking is characterized by a widened base and high stepping, as well as staggering and lurching from side to side. Turning is also ...
https://en.wikipedia.org/wiki?curid=969
98,368
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This is a transparent freshwater catfish with two long barbels. Standard lengths may range up to , but usually only reach around in total length. They are transparent because, like all catfish, they are scaleless, and catfish within the genus "Kryptopterus" lack body pigment. Most of their organs are located near the h...
https://en.wikipedia.org/wiki?curid=24549673
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The concept was first suggested by Farrington Daniels in the 1940s, said to have been inspired by the innovative design of the Benghazi burner by British desert troops in WWII, but commercial development did not take place until the 1960s in the German AVR reactor by Rudolf Schulten. This system was plagued with proble...
https://en.wikipedia.org/wiki?curid=143354
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