doc_id
int32
18
2.25M
text
stringlengths
245
2.96k
source
stringlengths
38
44
__index_level_0__
int64
18
2.25M
2,036,256
The Vandals successfully defended their title in the Far West Classic at Portland in late December, and had a record in mid-January, and appeared capable of a third consecutive conference title. Four road defeats in conference and the home loss to Montana resulted in a tie for third place in the regular season with the Grizzlies, who swept their two-game series. With an opportunity to three-peat, the Vandals were the low seed in the four-team Big Sky tourney in Reno. They lost by five points to host Nevada-Reno in the semifinals, and neither was selected for the 52-team NCAA tournament; Weber State won the final
https://en.wikipedia.org/wiki?curid=56631545
2,035,082
900,414
The first organized meetings of ecological economists occurred in the 1980s. These began in 1982, at the instigation of Lois Banner, with a meeting held in Sweden (including Robert Costanza, Herman Daly, Charles Hall, Bruce Hannon, H.T. Odum, and David Pimentel). Most were ecosystem ecologists or mainstream environmental economists, with the exception of Daly. In 1987, Daly and Costanza edited an issue of "Ecological Modeling" to test the waters. A book entitled "Ecological Economics", by Joan Martinez Alier, was published later that year. He renewed interest in the approach developed by Otto Neurath during the interwar period. 1989 saw the foundation of the International Society for Ecological Economics and publication of its journal, "Ecological Economics", by Elsevier. Robert Costanza was the first president of the society and first editor of the journal, which is currently edited by Richard Howarth. Other figures include ecologists C.S. Holling and H.T. Odum, biologist Gretchen Daily, and physicist Robert Ayres. In the Marxian tradition, sociologist John Bellamy Foster and CUNY geography professor David Harvey explicitly center ecological concerns in political economy.
https://en.wikipedia.org/wiki?curid=177694
899,939
2,012,689
The 2011–12 Georgetown Hoyas men's basketball team represented Georgetown University in the 2011–2012 NCAA Division I basketball season. They were led by John Thompson III and played their home games at the Verizon Center. They are a member of the Big East Conference. Prior to the season, the Hoyas made a goodwill trip to China for several matches with local teams. U.S. Vice President Joe Biden attended their first game, a win over the Shanxi Zhongyu Brave Dragons. Their second game, against the Bayi Rockets, ended in a brawl, causing the team to leave the court while Chinese fans threw garbage and debris. Georgetown won their final games against the Liaoning Dinosaurs and the Taiwanese national team without incident.
https://en.wikipedia.org/wiki?curid=33673923
2,011,536
842,322
It was thought that evidence of the earliest true crank handle was found in a Han era glazed-earthenware tomb model of an agricultural winnowing fan dated no later than 200 AD, but since then a series of similar pottery models with crank operated winnowing fans were unearthed, with one of them dating back to the Western Han dynasty (202 BC - 9 AD). Historian Lynn White stated that the Chinese crank was 'not given the impulse to change reciprocating to circular motion in other contrivances', citing one reference to a Chinese crank-and-connecting rod dating to 1462. However, later publications reveal that the Chinese used not just the crank, but the crank-and-connecting rod for operating querns as far back as the Western Han dynasty (202 BC - 9 AD) as well. Eventually crank-and-connecting rods were used in the inter-conversion or rotary and reciprocating motion for other applications such as flour-sifting, treadle spinning wheels, water-powered furnace bellows, and silk-reeling machines.
https://en.wikipedia.org/wiki?curid=384237
841,872
84,974
The toxic effect of phenol on the central nervous system, discussed below, causes sudden collapse and loss of consciousness in both humans and animals; a state of cramping precedes these symptoms because of the motor activity controlled by the central nervous system. Injections of phenol were used as a means of individual execution by Nazi Germany during the Second World War. It was originally used by the Nazis in 1939 as part of the Aktion T4 euthanasia program. The Germans learned that extermination of smaller groups was more economical by injection of each victim with phenol. Phenol injections were given to thousands of people. Maximilian Kolbe was also killed with a phenol injection after surviving two weeks of dehydration and starvation in Auschwitz when he volunteered to die in place of a stranger. Approximately one gram is sufficient to cause death.
https://en.wikipedia.org/wiki?curid=24085
84,940
1,703,343
Marsh worked to build Team Elite under SwimMAC Carolina since 2007. Prior to founding Team Elite he was the men's and women's swimming coach at Auburn University. After becoming head coach of Auburn in 1990, Marsh led the men's team to seven NCAA national championships (1997, 1999, 2003, 2004, 2005, 2006, and 2007) and the women's team to five national championships (2002, 2003, 2004, 2006, 2007). He finished his coaching career at Auburn at the conclusion of the 2007 season, after which he became the Head Elite Coach and CEO of the United States Olympic Committee Center of Excellence with SwimMAC Carolina. To date, Marsh has led SwimMAC to three consecutive USA club excellence championships, a first for any program, outdistancing the second-place finisher by 12,000 points (see www.usaswimming.org). He was the head swim coach for University of California San Diego, an NCAA Division II program for two seasons from 2017 to 2019.
https://en.wikipedia.org/wiki?curid=4006619
1,702,387
1,369,925
Dalén was born in Stenstorp, a small village in Falköping Municipality, Västra Götaland County. He managed the family farm, which he expanded to include a market garden, a seed merchants and a dairy. In 1892 he invented a milk-fat tester to check milk quality of the milk delivered and went to Stockholm to show his new invention for Gustaf de Laval. de Laval was impressed by the self-taught Dalén and the invention and encouraged him to get a basic technical education. He was admitted to the Chalmers University of Technology where he earned his Master's degree and a Doctorate on leaving in 1896. Dalén was much the same type of inventor as Gustaf de Laval, not afraid of testing "impossible" ideas, but Dalén was much more careful with the company economy. The products should have a solid market place before he introduced a new product.
https://en.wikipedia.org/wiki?curid=92418
1,369,169
345,583
Although they lack neurons, a form of proprioception has also been described in some plants (angiosperms). Terrestrial plants control the orientation of their primary growth through the sensing of several vectorial stimuli such as the light gradient or the gravitational acceleration. This control has been called tropism. A quantitative study of shoot gravitropism demonstrated that, when a plant is tilted, it cannot recover a steady erected posture under the sole driving of the sensing of its angular deflection versus gravity. An additional control through the continuous sensing of its curvature by the organ and the subsequent driving an active straightening process are required. Being a sensing by the plant of the relative configuration of its parts, it has been called proprioception. This dual sensing and control by gravisensing and proprioception has been formalized into a unifying mathematical model simulating the complete driving of the gravitropic movement. This model has been validated on 11 species sampling the phylogeny of land angiosperms, and on organs of very contrasted sizes, ranging from the small germination of wheat (coleoptile) to the trunk of poplar trees.
https://en.wikipedia.org/wiki?curid=21290714
345,402
843,254
His textbook, "Systematic Programming: An Introduction", was considered a good source for students who wanted to do more than just coding. The cover flap of the sixth edition (1973) stated the book "... is tailored to the needs of people who view a course on systematic construction of algorithms as part of their basic mathematical training, rather than to the immediate needs of those who wish to be able to occasionally encode a problem and hand it over to their computer for instant solution." Regarded as a challenging text to work through, it was sought as imperative reading for those interested in numerical mathematics.
https://en.wikipedia.org/wiki?curid=21642
842,804
180,778
Henry was the grandfather of William Sinclair, 1st Earl of Caithness, the builder of Rosslyn Chapel near Edinburgh, Scotland. The authors Robert Lomas and Christopher Knight believe some carvings in the chapel were intended to represent ears of New World corn or maize, a crop unknown in Europe at the time of the chapel's construction. Knight and Lomas view these carvings as evidence supporting the idea that Henry Sinclair traveled to the Americas well before Columbus. In their book they discuss meeting with the wife of the botanist Adrian Dyer and explain that Dyer's wife told them that Dyer agreed that the image thought to be maize was accurate. In fact Dyer found only one identifiable plant among the botanical carvings and instead suggested that the "maize" and "aloe" were stylized wooden patterns, only coincidentally looking like real plants. Specialists in medieval architecture have variously interpreted the carvings as stylised depictions of wheat, strawberries, or lilies.
https://en.wikipedia.org/wiki?curid=158687
180,684
1,034,360
"P. impacatus," recovered from deposits of Ludlow age at Kielkond in Saaremaa, Estonia, is represented by a holotype specimen consisting of a fragmentary free ramus of a chelicera that preserves some diagnostic and well-preserved details (specimen number 7059/7 housed in the Museum of Comparative Zoology). Alongside this specimen, important specimens referred to the species include the paratype (No. 7059/3, a fragmentary chelicera). This specimen includes several of the features that are diagnostic of "P. impacatus", such as upright teeth following the thick and long teeth of the terminal part of the claw. Particularly of diagnostic value is that there are teeth present at the point where the terminal teeth first begin. The central tooth of the free ramus is unusually large in this species. The terminal tooth measures 2.3 cm (1 in) in length. The rami of "P. impacatus" are ornamented with large and pointed pustules (elevations in the skin), and this feature helps distinguish specimens of "P. impacatus" from other pterygotids in the fossil sites where its remains are found. In 2007, O. Erik Tetlie cast doubt on the assignment of "P. impacatus" to "Pterygotus" as the shape of the eyes and carapace was similar to how these body parts are shaped in "Erettopterus".
https://en.wikipedia.org/wiki?curid=1581540
1,033,823
1,736,677
EP-deficient mice as well as mice selectively deleted of EP expression in the brain's median preoptic nucleus fail to develop fever in response to endotoxins (i.e. bacteria-derived lipopolysaccharide) or the host-derived regulator of body temperature, IL-1β. The ability of endotoxins and IL-1β but not that of PGE to trigger fever is blocked by inhibitors of nitric oxide and PG. EP-deficient mice exhibit normal febrile responses to stress, interleukin-8, and macrophage inflammatory protein-1beta (MIP-1β). It is suggested that these findings indicate that a) activation of the EP receptor suppresses the inhibitory tone that the preoptic hypothalamus has on thermogenic effector cells in the brain; b) endotoxin and IL-1β simulate the production of nitric oxide which in turn causes the production of PGE and thereby the EP-dependent fever-producing; c) other factors such as stress, interleukin 8, and MIP-1β trigger fever independently of EP; and d) inhibition of the PGE-EP pathway underlies the ability of aspirin and other Nonsteroidal anti-inflammatory drugs to reduce fever caused by inflammation in animals and, possibly, humans.
https://en.wikipedia.org/wiki?curid=14522546
1,735,700
1,265,367
Axial Seamount's summit is marked by an unusual rectangular caldera, in area, ~3° in slope, and breached on the southeast side. The area is offset by the two rift zones and defined on three sides by boundary faults up to deep. The caldera is roughly deeper at the north side then it is in the south. Flows within the caldera consist mostly of sheet flows pocketed by lava ponds and pit craters. Less common are pillow lavas; their arrangement along the caldera walls suggests that they were an important component in the volcano's early growth. There are several dome-like structures within the caldera with heights of . There are several small craters within the region, the largest of which, nicknamed the "D.D. Cone", is in diameter and in relief. However, most of the features do not range over deep and across.
https://en.wikipedia.org/wiki?curid=12730246
1,264,679
858,435
Rising international demand for coffee and rubber in the early 20th century brought Brazil an influx of revenue. Simultaneously, the Baron of Rio Branco spearheaded a drive by prominent Brazilians to force the leading world nations to recognize Brazil as an international power. The National Congress of Brazil inaugurated a large naval acquisition program in late 1904. They ordered three small battleships in 1906, but the launch of caused the Brazilian Navy to reconsider their purchase. In March 1907, they signed a contract for three s. Two ships would be constructed immediately by the British companies Armstrong Whitworth and Vickers, with the third to follow.
https://en.wikipedia.org/wiki?curid=872892
857,977
1,361,125
, known as KEK, is a Japanese organization whose purpose is to operate the largest particle physics laboratory in Japan, situated in Tsukuba, Ibaraki prefecture. It was established in 1997. The term "KEK" is also used to refer to the laboratory itself, which employs approximately 695 employees. KEK's main function is to provide the particle accelerators and other infrastructure needed for high-energy physics, material science, structural biology, radiation science, computing science, nuclear transmutation and so on. Numerous experiments have been constructed at KEK by the internal and international collaborations that have made use of them. Makoto Kobayashi, emeritus professor at KEK, is known globally for his work on CP-violation, and was awarded the 2008 Nobel Prize in Physics.
https://en.wikipedia.org/wiki?curid=1155466
1,360,372
827,151
As a researcher, Topol has published over 1,200 peer-reviewed articles, with more than 310,000 citations, h-index 235, elected to the National Academy of Medicine, and is one of the top 10 most cited researchers in medicine. His principal scientific focus has been on the genomic and digital tools, with the use of artificial intelligence analytics, to individualize medicine. He also pioneered the development of many medications that are routinely used in medical practice including t-PA, Plavix, Angiomax, and ReoPro. He has led clinical trials in over 40 countries involving over 200,000 patients (first in series – GUSTO trials). He has edited over 30 books, including the "Textbook of Interventional Cardiology" (8th ed - Elsevier, 2020), and the "Textbook of Cardiovascular Medicine" (3rd ed - Lippincott Williams & Wilkins).
https://en.wikipedia.org/wiki?curid=16635437
826,707
1,048,328
Graph theory has been used in the network analysis of linear, passive networks almost from the moment that Kirchhoff's laws were formulated. Gustav Kirchhoff himself, in 1847, used graphs as an abstract representation of a network in his loop analysis of resistive circuits. This approach was later generalised to RLC circuits, replacing resistances with impedances. In 1873 James Clerk Maxwell provided the dual of this analysis with node analysis. Maxwell is also responsible for the topological theorem that the determinant of the node-admittance matrix is equal to the sum of all the tree admittance products. In 1900 Henri Poincaré introduced the idea of representing a graph by its incidence matrix, hence founding the field of algebraic topology. In 1916 Oswald Veblen applied the algebraic topology of Poincaré to Kirchhoff's analysis. Veblen is also responsible for the introduction of the spanning tree to aid choosing a compatible set of network variables.
https://en.wikipedia.org/wiki?curid=19103773
1,047,783
2,145,594
Ambystoma rivulare is a species of mole salamander in the family Ambystomatidae. Typically gains a lot of population distribution in the Trans-Mexican Volcanic Belt around central Mexico City. Found in various small or medium-sized ponds and lakes that have large and wide range of food options, all within a distance of at least 2 km. It is endemic to Mexico. Its natural habitats are subtropical or tropical moist montane forests and rivers. It is threatened by habitat loss. The larvae, who continue to prey on the same organisms as they grow, prey mainly on ostracods as well as some gastropods and assorted other prey with limited diversity. Ambystoma rivulare continue to live in the river they hatch in post-metamorphosis.
https://en.wikipedia.org/wiki?curid=12357513
2,144,363
1,444,912
Tiling arrays differ from traditional microarrays in the nature of the probes. Instead of probing for sequences of known or predicted genes that may be dispersed throughout the genome, tiling arrays probe intensively for sequences which are known to exist in a contiguous region. This is useful for characterizing regions that are sequenced, but whose local functions are largely unknown. Tiling arrays aid in transcriptome mapping as well as in discovering sites of DNA/protein interaction (ChIP-chip, DamID), of DNA methylation (MeDIP-chip) and of sensitivity to DNase (DNase Chip) and array CGH. In addition to detecting previously unidentified genes and regulatory sequences, improved quantification of transcription products is possible. Specific probes are present in millions of copies (as opposed to only several in traditional arrays) within an array unit called a feature, with anywhere from 10,000 to more than 6,000,000 different features per array. Variable mapping resolutions are obtainable by adjusting the amount of sequence overlap between probes, or the amount of known base pairs between probe sequences, as well as probe length. For smaller genomes such as "Arabidopsis", whole genomes can be examined. Tiling arrays are a useful tool in genome-wide association studies.
https://en.wikipedia.org/wiki?curid=16019737
1,444,096
7,089
Since the A-10 flies low to the ground and at subsonic speed, aircraft camouflage is important to make the aircraft more difficult to see. Many different types of paint schemes have been tried. These have included a "peanut scheme" of sand, yellow and field drab; black and white colors for winter operations and a tan, green and brown mixed pattern. Many A-10s also featured a false canopy painted in dark gray on the underside of the aircraft, just behind the gun. This form of automimicry is an attempt to confuse the enemy as to aircraft attitude and maneuver direction. Many A-10s feature nose art, such as shark mouth or warthog head features.
https://en.wikipedia.org/wiki?curid=12502446
7,086
2,125,579
Gadonanotubes are similar to gadofullerenes in structure and functionality, but they are significantly cheaper and easier to prepare, and have superior magnetic properties. For 20–100 MHz frequencies, their relaxation rate is 3–6 times that of gadofullerenes and about 40 times that of Magnevist, a common commercial MRI contrast agent. This difference is even much larger at lower frequencies. The dispersibility of gadonanotubes in water has also been significantly increased, without the need of a surfactant, by coating the nanotube surface with polyacrylic acid (PAA) polymer. PAA coated gadonanotubes have proven to be good MRI contrast agents when dispersed in water at physiological pH with a relaxivity of 150 mM ·s per Gd ion at 1.5 T, and have also been used to safely label porcine bone-marrow-derived mesenchymal stem cells for MRI imaging.
https://en.wikipedia.org/wiki?curid=39971084
2,124,358
1,518,741
First, the target is captured by a spiral scan that slowly scans the space by swinging the beam at an angle of 6 degrees, and then a conical scan that quickly measures and distances by narrowing the beam swing angle to 0.5 degrees. Track the target by scanning. The speed of the tracking target is obtained by the gyroscope of the directional board and the tachometer generator of the distance tracking servo system. Ballistic calculation was performed by the Mk.42 ballistic computer housed in the ship, and it was possible to aim two types of guns at the same target by adding a ballistic calculation housing. In addition, during the war, there were many cases where radar tracking could not catch up with the attack aircraft that rushed in at high speed, so Admiral Ernest King, Chief of Naval Operations, equipped with additional optical equipment.
https://en.wikipedia.org/wiki?curid=70102529
1,517,883
1,721,346
James Thomson is known for his work on the improvement of water wheels, water pumps and turbines. Also his innovations in the analysis of regelation, i.e., the effect of pressure on the freezing point of water, and his studies in glaciology including glacier motion, where he extended the work of James David Forbes. He studied the experimental work of his colleague Thomas Andrews, concerning the continuity of the liquid and gaseous states of matter, and strengthened understanding of it by applying his strong knowledge of thermodynamics. He derived a simplified form of the Clapeyron equation for the solid-liquid phase boundary. He proposed the term "triple point" to describe the conditions for which solid, liquid and vapour states are all in equilibrium.
https://en.wikipedia.org/wiki?curid=5730303
1,720,376
334,555
According to Chinese medical literature, mumps was recorded as far back as 640 B.C. The Greek physician Hippocrates documented an outbreak on the island of Thasos in approximately 410 B.C. and provided a fuller description of the disease in the first book of "Epidemics" in the Corpus Hippocraticum. In modern times, the disease was first described scientifically in 1790 by British physician Robert Hamilton in "Transactions of the Royal Society of Edinburgh". During the First World War, mumps was one of the most debilitating diseases among soldiers. In 1934, the etiology of the disease, the mumps virus, was discovered by Claude D. Johnson and Ernest William Goodpasture. They found that rhesus macaques exposed to saliva taken from humans in the early stages of the disease developed mumps. Furthermore, they showed that mumps could then be transferred to children via filtered and sterilized, bacteria-less preparations of macerated monkey parotid tissue, showing that it was a viral disease.
https://en.wikipedia.org/wiki?curid=59171
334,377
1,518,071
In Diabetes mellitus type 2 (T2DM), a small molecule activator of Hsp72 named BGP-15 has been shown to improve insulin sensitivity and inflammation in an insulin-resistant mouse model, increase mitochondrial volume, and improve metabolic homeostasis in a rat model of T2DM. BGP-15 has now proceeded to Phase 2b clinical trials and demonstrated no side-effects thus far. Though early speculation considered that Hsp72 expression might be affecting insulin sensitivity through a direct interaction with GLUT4, studies were unable to verify this link. Experiments did reveal that Hsp72 improved insulin sensitivity through stimulating glucose uptake during a hyperinsulemic-euglycemic clamp in T2DM patients. Additionally, Hsp72 has been associated with another inflammatory condition, rheumatoid arthritis, and could be implemented to help diagnose and monitor disease activity in patients.
https://en.wikipedia.org/wiki?curid=14024984
1,517,213
1,811
The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region of interplanetary medium in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of the interstellar medium; it extends out to the edge of the scattered disc. The Oort cloud, which is thought to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located 26,000 light-years from the center of the Milky Way galaxy in the Orion Arm, which contains most of the visible stars in the night sky. The nearest stars are within the so-called Local Bubble, with the closest, Proxima Centauri, at 4.2441 light-years.
https://en.wikipedia.org/wiki?curid=26903
1,811
763,493
Although the primary cilium was discovered in 1898, it was largely ignored for a century and considered a vestigial organelle without important function. Recent findings regarding its physiological roles in chemosensation, signal transduction, and cell growth control, have revealed its importance in cell function. Its importance to human biology has been underscored by the discovery of its role in a diverse group of diseases caused by the dysgenesis or dysfunction of cilia, such as polycystic kidney disease, congenital heart disease, mitral valve prolapse, and retinal degeneration, called ciliopathies. The primary cilium is now known to play an important role in the function of many human organs. Primary cilia on pancreatic beta cells regulate their function and energy metabolism. Cilia deletion can lead to islet dysfunction and type 2 diabetes.
https://en.wikipedia.org/wiki?curid=43118
763,084
1,663,786
An early modern computational neuro-anatomist was David Van Essen performing some of the early physical unfoldings of the human brain based on printing of a human cortex and cutting. Jean Talairach's publication of Talairach coordinates is an important milestone at the morphome scale demonstrating the fundamental basis of local coordinate systems in studying neuroanatomy and therefore the clear link to charts of differential geometry. Concurrently, virtual mapping in computational anatomy across high resolution dense image coordinates was already happening in Ruzena Bajcy's and Fred Bookstein's earliest developments based on computed axial tomography and magnetic resonance imagery.
https://en.wikipedia.org/wiki?curid=48520204
1,662,849
1,450,492
The medium of instruction is English. The academic program for students include didactic lectures, small group teaching, practical, project work, demonstration of procedures and bedside clinics inclusive of history taking, physical examination and complete workup of cases. Clinical rotations include postings in all the outpatient departments. Training in community health includes postings at rural centers. Conduct regular CME and CNE programme that help medical professionals to maintain competence and learn about new and developing areas of their field.
https://en.wikipedia.org/wiki?curid=22312238
1,449,675
934,136
By 1979, with the establishment of the Foundation for Ancient Research and Mormon Studies (FARMS) as a California non-profit research institution, an effort led by Robert F. Smith began to take full account of Larson's work and to publish a Critical Text of the Book of Mormon. Thus was born the FARMS Critical Text Project which published the first volume of the 3-volume Book of Mormon Critical Text in 1984. The third volume of that first edition was published in 1987, but was already being superseded by a second, revised edition of the entire work, greatly aided through the advice and assistance of then Yale doctoral candidate Grant Hardy, Dr. Gordon C. Thomasson, Professor John W. Welch (the head of FARMS), Professor Royal Skousen, and others too numerous to mention here. However, these were merely preliminary steps to a far more exacting and all-encompassing project.
https://en.wikipedia.org/wiki?curid=155023
933,644
632,049
Sutherland invented Sketchpad in 1962 while at MIT. Claude Shannon signed on to supervise Sutherland's computer drawing thesis. Among others on his thesis committee were Marvin Minsky and Steven Coons. Sketchpad was an innovative program that influenced alternative forms of interaction with computers. Sketchpad could accept constraints and specified relationships among segments and arcs, including the diameter of arcs. It could draw both horizontal and vertical lines and combine them into figures and shapes. Figures could be copied, moved, rotated, or resized, retaining their basic properties. Sketchpad also had the first window-drawing program and clipping algorithm, which allowed zooming. Sketchpad ran on the Lincoln TX-2 computer and influenced Douglas Engelbart's oN-Line System. Sketchpad, in turn, was influenced by the conceptual Memex as envisioned by Vannevar Bush in his influential paper "As We May Think".
https://en.wikipedia.org/wiki?curid=78122
631,711
1,554,328
Immunosenescence occurs over time where the immune system undergoes changes that may impact both the innate and adaptive immune systems. These alterations may lead to increased immunoreactivity to intrinsic and extrinsic stimuli that can cause the body to become more sensitive and reactive. This may result in the form of an itch when exposed to stimuli that the body was not reactive to in the past. The immune system is responsible for a myriad of activities to defend the body from foreign substances via various endogenous and exogenous pathways. Within the lymphatic system, the thymus gland produces T cells that aid the immune system to recognize and attack potential harmful stimuli. In the case for the aging population, the thymus gland undergoes physical and chemical conformational changes that reduce the organ's size and therefore impacting its function to produce T cells. This impairment may lead to decreased Th2 cells responsible for anti-body response when encountering allergens, bacteria, toxins, and other irritants, which may lead to an increase in autoreactivity-causing senile pruritus.
https://en.wikipedia.org/wiki?curid=25703608
1,553,447
187,656
The high frequency band is very popular with amateur radio operators, who can take advantage of direct, long-distance (often inter-continental) communications and the "thrill factor" resulting from making contacts in variable conditions. International shortwave broadcasting utilizes this set of frequencies, as well as a seemingly declining number of "utility" users (marine, aviation, military, and diplomatic interests), who have, in recent years, been swayed over to less volatile means of communication (for example, via satellites), but may maintain HF stations after switch-over for back-up purposes.
https://en.wikipedia.org/wiki?curid=178937
187,559
1,127,348
The most optimum storage media that are available have been shown to be pH balanced cell preserving solutions. The best known and most extensively tested is called Hank’s Balanced Salt Solution (HBSS). It has all of the metabolites such as Ca, phosphate ions, K+ and glucose that are necessary to maintain normal cell metabolism for long periods of time. HBSS has been extensively tested in dental and medical research for the past twenty years. This research has shown that 90% of cells stored in HBSS for 24 hours maintain their normal viability and after four days, still have 70%viable. In research studies, extracted dog’s teeth that have been placed in HBSS for four days can still be replanted with little signs of resorption.
https://en.wikipedia.org/wiki?curid=32039834
1,126,771
891,279
Mathematical modeling and experiment have both shown that periodically arrayed conducting elements (non-magnetic by nature) respond predominantly to the magnetic component of incident electromagnetic fields. The result is an effective medium and negative μ over a band of frequencies. The permeability was verified to be the region of the forbidden band, where the gap in propagation occurred – from a finite section of material. This was combined with a negative permittivity material, ε < 0, to form a “left-handed” medium, which formed a propagation band with negative group velocity where previously there was only attenuation. This validated predictions. In addition, a later work determined that this first metamaterial had a range of frequencies over which the refractive index was predicted to be negative for one direction of propagation (see ref #). Other predicted electrodynamic effects were to be investigated in other research.
https://en.wikipedia.org/wiki?curid=23870096
890,810
1,166,001
Ethologists and others writing in the 1960s and 1970s questioned the types of behaviour used as indications of attachment, and offered alternative approaches. For example, crying on separation from a familiar person was suggested as an index of attachment. Observational studies of young children in natural settings also provided behaviours that might be considered to indicate attachment; for example, staying within a predictable distance of the mother without effort on her part and picking up small objects and bringing them to the mother, but usually not other adults. Although ethological work tended to be in agreement with Bowlby, work like that just described led to the conclusion that "[w]e appear to disagree with Bowlby and Ainsworth on some of the details of the child's interactions with its mother and other people". Some ethologists pressed for further observational data, arguing that psychologists "are still writing as if there is a real entity which is 'attachment', existing over and above the observable measures."
https://en.wikipedia.org/wiki?curid=18756845
1,165,384
1,501,844
The CEVIS provides both aerobic and cardiovascular training using recumbent cycling activities. The workload placed on the subject can be tuned very accurately. The astronauts can create target goals of speed, workload and heart rate. It is a modified version of the Inertial Vibration Isolation and Stabilization (IVIS) Cycle Ergometer. It has a control panel that displays the target workload as well as the actual workload in addition to the cycling speed, heart rate, deviation from target speed and heart rate, and elapsed exercise time. The workload range is between 25 and 350 Watts. The pedal speeds range from 30 to 120 rpm. There is a vibration isolation system that prevents the motions and forces generated by the crew member exercising from being transferred to the International Space Station (ISS).
https://en.wikipedia.org/wiki?curid=50506253
1,500,998
1,417,973
Applications of a eudiometer include the analysis of gases and the determination of volume differences in chemical reactions. The eudiometer is filled with water, inverted so that its open end is facing the ground (while holding the open end so that no water escapes), and then submersed in a basin of water. A chemical reaction is taking place through which gas is created. One reactant is typically at the bottom of the eudiometer (which flows downward when the eudiometer is inverted) and the other reactant is suspended on the rim of the eudiometer, typically by means of a platinum or copper wire (due to their low reactivity). When the gas created by the chemical reaction is released, it should rise into the eudiometer so that the experimenter may accurately read the volume of the gas produced at any given time. Normally a person would read the volume when the reaction is completed. This procedure is followed in many experiments, including an experiment in which one experimentally determines the Ideal gas law constant R.
https://en.wikipedia.org/wiki?curid=1515736
1,417,174
922,016
On April 2, 2004, a new Campus Center next to Wheatley Hall was opened. Construction for the facility began on July 20, 2001, and was completed during the tenure of Chancellor Jo Ann M. Gora. It became the new entrance for the campus and was the first building constructed since the Clark Athletic Center was completed in 1979. The building was designed by the Boston-based architectural firm Kallmann McKinnell & Wood and built by the Suffolk Construction Company at a cost of $80 million. Unlike the original Harbor Campus buildings, which were uniformly built of brick and faced inward, the Campus Center was designed such that its glass front would look out onto Boston Harbor, and the offices, food court, event space, student clubs, and activities space gave the campus a center of cohesion that was often lacking in the older buildings.
https://en.wikipedia.org/wiki?curid=99867
921,530
2,232,410
It is important to be able to separately detect the transfer of Xe to red blood cells (RBCs) because the pathway xenon follows to reach RBCs is the same as that of oxygen. Recently, spectra of Xe in the dissolved phase were acquired in subjects with idiopathic pulmonary fibrosis and showed greatly reduced Xe transfer to RBCs compared to healthy volunteers. This work showed that separating the dissolved Xe resonances is critical for detecting diffusion limitation caused by lung tissue thickening. Xe measurements correlated strongly with DLCO and showed that the frequency of the Xe RBC resonance may be a sensitive measure of blood oxygenation at the capillary level. This work also emphasized the need for imaging to separately detect xenon uptake in barrier tissues and RBCs.
https://en.wikipedia.org/wiki?curid=72408552
2,231,143
834,073
On 17 July 1981, two suspended walkways through the lobby of the Hyatt Regency in Kansas City, Missouri, collapsed, killing 114 and injuring more than 200 people at a tea dance. The collapse was due to a late change in design, altering the method in which the rods supporting the walkways were connected to them, and inadvertently doubling the forces on the connection. The failure highlighted the need for good communication between design engineers and contractors, and rigorous checks on designs and especially on contractor-proposed design changes. The failure is a standard case study on engineering courses around the world, and is used to teach the importance of ethics in engineering.
https://en.wikipedia.org/wiki?curid=36337411
833,624
1,688,130
In 2011, Wikileaks revealed that the U.S. government has tried to stop the creation and production of rockets in Brazil, demanding that Brazilian partners, such as Ukraine, not transfer their technology in this area to the country. The restriction was registered in a telegram sent by the U.S.' Department of State to their embassy in Brasilia, January 2009, as follows:"We do not support Brazil's native space launch vehicle program. ... We want to remind the Ukrainian authorities that the US does not oppose the establishment of a launching platform in Alcântara, as long as such activity does not result in the transfer of rocket technologies to Brazil." The United States also does not allow the launch of US satellites (or those manufactured by other countries but containing US components) from the Alcantara Launch Center, "because of our longstanding policy of not encouraging US space rockets from Brazil ", according to another confidential document released.
https://en.wikipedia.org/wiki?curid=3844321
1,687,184
2,221,134
"Aspergillus fumigatus" is a pathogenic filamentous fungus and is responsible for more infections worldwide than any other mould. Studies of the small non-coding RNA transcriptome of this fungus under a variety of different conditions and the subsequent generation of cDNA libraries from size selected small RNA species, identified several non-coding RNAs (ncRNA) within the fungal genome. The ncRNAs identified were further classified as small nucleolar RNAs (snoRNAs), small nuclear RNAs (snRNAs) or novel ncRNAs. The expression of these ncRNAs was also shown to be influenced by developmental stages of the fungus and environmental conditions. Comparative genomics showed that the snoRNAs present within "A. fumigatus" are conserved across other strains of fungus. This study also identified several partial tRNA sequences within the cDNA libraries which corresponded to either the 5’ or 3’ halves of tRNA molecules. These partial tRNAs are thought to have been created by enonuclolytic cleavage within the anti-codon loop. It has been suggested that these partial tRNA stall protein synthesis however, further studies are required to determine their exact function. The table below summarised the type, genome location and corresponding target sites of the ncRNAs identified in "A. fumigatus".
https://en.wikipedia.org/wiki?curid=24029696
2,219,872
818,208
Dinosaur and trace fossils are found particularly in the Morrison Basin, which stretches from New Mexico to Alberta and Saskatchewan and was formed when the precursors to the Front Range of the Rocky Mountains started pushing up to the west. Eroded material from their east-facing drainage basins was carried by streams and rivers and deposited in swampy lowlands, lakes, river channels, and floodplains. The formation is similar in age to the Lourinha Formation in Portugal and the Cañadón Calcáreo Formation in Argentina, Camarasaurid fossils have been found at the 2 formations. In 1877, it became the center of the Bone Wars, a fossil-collecting rivalry between early paleontologists Othniel Charles Marsh and Edward Drinker Cope, with "Camarasaurus" itself being discovered and named by the latter Paleontologist during the conflict.
https://en.wikipedia.org/wiki?curid=1005316
817,769
1,326,705
The second part expands on enumerative combinatorics, or the systematic numeration of objects. It was in this part that two of the most important of the twelvefold ways—the permutations and combinations that would form the basis of the subject—were fleshed out, though they had been introduced earlier for the purposes of probability theory. He gives the first non-inductive proof of the binomial expansion for integer exponent using combinatorial arguments. On a note more distantly related to combinatorics, the second section also discusses the general formula for sums of integer powers; the free coefficients of this formula are therefore called the Bernoulli numbers, which influenced Abraham de Moivre's work later, and which have proven to have numerous applications in number theory.
https://en.wikipedia.org/wiki?curid=17554277
1,325,978
1,692,264
Abstract Meaning Representations have originally been introduced by Langkilde and Knight (1998) as a derivation from the Penman Sentence Plan Language, they are thus continuing a long tradition in Natural Language Generation and this has been their original domain of application. AMRs have re-gained attention since Banarescu et al. (2013), in particular, this includes the extension to novel tasks such as machine translation and natural language understanding. The modern (post-2010) AMR format preserves the syntax and many syntactic conceptions of the original AMR format but has been thoroughly revised to better align with PropBank. Moreover, AMR has been extended with formal conventions for metadata and conventions for entity linking (here, linking with Wikipedia entries).
https://en.wikipedia.org/wiki?curid=53238020
1,691,313
392,325
Hickam began employment with the National Aeronautics and Space Administration at Marshall Space Flight Center in 1981 as an aerospace engineer. His specialties included training astronauts in regard to science payloads and extra-vehicular activities (EVA). Additionally, Hickam assisted at the Neutral Buoyancy Simulator as a diver where astronaut crews trained for numerous Spacelab and Space Shuttle missions, including the Hubble Space Telescope deployment, the first two Hubble repair missions, Spacelab-J (with the first Japanese astronauts), and the Solar Max repair mission. Prior to his retirement from NASA in 1998, Hickam was the payload training manager for the International Space Station program.
https://en.wikipedia.org/wiki?curid=870393
392,130
1,210,055
miRNA can be extracted using a number of commercially available kits, such as the Solid Phase QIAmp DNA mini kit. Ideally, like the QIAmp kit, the extraction method used is able to extract DNA and miRNA simultaneously, minimizing the amount of reactions and the amount of sample used. miRNAs can be quantified using quantitative Real Time PCR, similar to traditional DNA samples. However, primers and probes would have to be designed for the miRNA targets in order to do so. Unlike routine DNA profiling, miRNA amplification requires an extra step before the PCR process. miRNA requires a reverse transcription step to convert the miRNA fragments into their complementary DNA (cDNA) fragments. Once this conversion has happened, the cDNA and the other DNA in the sample can be amplified using PCR and then separated/visualized using a capillary electrophoresis protocol. cDNA specific primers would have to be designed for your miRNA targets. The final output is an electropherogram that contains not only the STR profile of the sample, but also a peak representing which miRNA is present in that sample.
https://en.wikipedia.org/wiki?curid=28000588
1,209,408
1,704,967
When the First Provincial Congress convened on August 25, 1774, Howe served as a member of that body representing Brunswick County. The First Provincial Congress quickly passed a bill banning the exportation of all pitch, tobacco, tar, and other trade goods to England and banned the importation of British tea into North Carolina. Also in 1774, Howe penned several documents expressing what would become known as Patriot or "whig" sympathies, including an address demanding reforms from Royal Governor Josiah Martin. On April 7, 1775, Howe delivered an address to the colonial assembly formally rebuffing Governor Martin's demands that the extra-legal Second Provincial Congress be dissolved. Howe's response as adopted by the assembly led to Martin proroguing the colonial legislative body. In 1775, when Howe received news of the Battles of Lexington and Concord, the first military engagements of the American Revolutionary War, he began to drill the local militia, using the unusual combination of drums and fiddles as opposed to the standard fifes and drums.
https://en.wikipedia.org/wiki?curid=691304
1,704,011
522,702
In Helsinki, Finland, the sightings of a glowing ball were reported by newspapers "Ilta-Sanomat" on 20 September and "Kansan Uutiset" the next day. The ball was observed by many residents, including taxi drivers, police functionaries and Helsinki Airport personnel. An unidentified object was also observed near Turku by two men. At the distance of 300 m they spotted a spinning object similar to a lifebuoy, 10 m in diameter. This claim was contested by Pekka Teerikorpi from Tuorla Observatory. Arguing that the entire phenomenon was caused by "Kosmos-955", Teerikorpi believed that the actual distance was "many hundreds of kilometres" and that "such reports probably are due to the well-known fact that it is difficult to estimate distances of unfamiliar phenomena". "Ilta-Sanomat" also reported a sighting of a glowing object in Denmark, over Copenhagen, by the pilots of a Finnish airline aircraft flying from Rome.
https://en.wikipedia.org/wiki?curid=36918866
522,430
2,032,129
The centre was founded to facilitate research between associated institutions and academics, and the UK's industrial structural ceramics community, with a stated goal to provide a "critical mass of UK expertise in the fundamental understanding of structural ceramics that is highly relevant to key areas of the economy including, energy generation, aerospace and defence, transport and healthcare". Funding initially came through the Engineering and Physical Sciences Research Council but it is now funded through an industrial consortium, including members such as Rolls-Royce Holdings, Morgan Advanced Materials, and Reaction Engines.
https://en.wikipedia.org/wiki?curid=47643062
2,030,959
282,727
The gyrfalcon was originally thought to be a bird of tundra and mountains only; however, in June 2011, it was revealed to spend considerable periods during the winter on sea ice far from land. It feeds only on birds and mammals, the latter of which it takes more regularly than many other "Falco" species. Like other hierofalcons, it usually hunts in a horizontal pursuit, rather than with the peregrine's speedy stoop from a height. Most prey is killed on the ground, whether they are captured there, or if the victim is a flying bird, forced to the ground. The diet is to some extent opportunistic, but a majority breed and hunt coinciding with ptarmigan and seabird colonies. Avian prey can range in size from redpolls to geese and can include gulls, corvids, smaller passerines, ducks, sparrows, buntings, doves, grouse, waders, and other raptors (up to the size of "Buteos"). Mammalian prey can range in size from shrews to marmots (sometimes thrice the weight of the assaulting falcon), and often includes lemmings, mice, voles, ground squirrels, hares, rabbits, and rarely also bats. Gyrfalcons also hunt fish. They are rarely observed eating carrion.
https://en.wikipedia.org/wiki?curid=27394479
282,574
418,969
In June 2013, Tianhe-2 topped the TOP500 list of fastest supercomputers in the world and was still listed as the fastest machine in the November 2015 list. The computer beat out second-place finisher Titan by nearly a 2-to-1 margin. Titan, which is housed at the U.S. Department of Energy's Oak Ridge National Laboratory, achieved 17.59 petaflops, while Tianhe-2 achieved 33.86 petaflops. Tianhe-2's performance returned the title of the world's fastest supercomputer to China after Tianhe-I's début in November 2010. The Institute of Electrical and Electronics Engineers said Tianhe-2's win "symbolizes China's unflinching commitment to the supercomputing arms race". In June 2013, China housed 66 of the top 500 supercomputers, second only to the United States' 252 systems. The Chinese total increased to 168 of the top 500 systems by June 2016, overtaking the United States which fell to 165 of the top 500 supercomputers.
https://en.wikipedia.org/wiki?curid=37504895
418,764
1,440,974
In 1959—roughly a decade after vinyl LPs first became widely available to consumers—the Library of Congress published "Preservation of Sound Recordings" (A.G. Pickett and M.M. Lemcoe), the first and most extensive investigation of the deterioration of grooved discs and magnetic tape. Funded by a grant from the Rockefeller Foundation, the purpose of the investigation was to establish suitable guidelines for the storage and preservation of sound recordings for libraries. Conducted at the Southwest Research Institute of San Antonio, the study involved subjecting sound recordings to a series of lab tests, from accelerated aging to fungal exposure. Though considered the definitive study in the field, the chemical makeup of plastics and how they perform under stress was the primary focus of the report, whereas playback deterioration—a significant concern to sound archivists and record collectors—was excluded from the investigation.
https://en.wikipedia.org/wiki?curid=10993007
1,440,164
1,410,009
At the same time that Beckman was approached about infrared spectrometry, he was contacted by Paul Rosenberg. Rosenberg worked at MIT's Radiation Laboratory. The lab was part of a secret network of research institutions in both the United States and Britain that were working to develop radar, "radio detecting and ranging". The project was interested in Beckman because of the high quality of the tuning knobs or "potentiometers" which were used on his pH meters. Beckman had trademarked the design of the pH meter knobs, under the name "helipot" for "helical potentiometer". Rosenberg had found that the helipot was more precise, by a factor of ten, than other knobs. Nonetheless, for use in continuously moving airplanes, ships, or submarines, which might be under attack, a redesign would be needed to ensure that the knobs could withstand shocks and vibrations.
https://en.wikipedia.org/wiki?curid=315197
1,409,217
1,593,005
The center was founded in November 2011 as a collaboration among eleven academic institutions to advance genome research, based on leadership from Tom Maniatis and financial support of $2.5 million from each institution as well as from visionary private philanthropists. In November 2012, the center recruited Robert B. Darnell as president and Scientific Director, where he served as CEO and Founding Director, before returning to Rockefeller University and Howard Hughes Medical Institute Investigator in 2017. NYGC formally opened in a multi-story building at 101 Avenue of the Americas. on September 19–20, 2013.
https://en.wikipedia.org/wiki?curid=52344551
1,592,108
1,646,059
This period of British-US engineering development has been the subject of analysis by economic historians. S B Saul, writing in 1960, determined that British engineering and its methods were advanced in spheres such as the manufacture of textile machinery but less so in that of light machine tools and the machinery of mass production. He argued that in these areas the response by British manufacturers to imports from the US "belatedly matured so their influence permeated back through the whole engineering trade and began a rejuvenation of old fossilised trades" in the 1890s. He broadly agreed with the contemporary opinion of Churchill that the adoption of US methods was slow in the light machine tools sector primarily because there was a perceived lack of demand and return on investment to excite the interest of British engineers. He viewed the cycle boom as the catalyst for growth in this area but pointed out that the heavy machine tool sector was one of those which had not been previously neglected by British engineers.
https://en.wikipedia.org/wiki?curid=30046818
1,645,130
2,059,141
Charles Perfetti focuses on recognizing specific components of reading which are generalized across cultures. In doing so he compares the word recognition processes of Chinese and writing. Perfetti's studies which are concerned with learning across writing systems, involve neuroimaging such as fMRI and ERP. In his research titled "Sentence integration processes: An ERP study of Chinese sentence comprehension with relative clauses", Perfetti analyzed comprehension of various types of Chinese relative clauses to find out generalization and linguistic specificity of how sentence comprehension is processed. The idea of the study is based on the fact that object-extracted clauses increase in memory load which is why subject-extracted clauses are easier to comprehend. The fact that Chinese speakers lack grammatical relationships between arguments raises questions whether if the process of remembering a words context overshadows the extraction of clausal relationships. The English language is the opposite because sentences which are processed are structure-dependent.
https://en.wikipedia.org/wiki?curid=42616278
2,057,956
1,278,898
In 1900, due to attack by "M. robiniae", the value of "Robinia pseudoacacia" was reported to be practically destroyed in nearly all parts of the United States beyond the mountain forests which are its home. Were it not for these beetles and their larval tunnels promoting fungal infections, it could be one of the most valuable timber trees that could be planted in the northern and middle states; young trees grow quickly and vigorously for a number of years, but soon become stunted and diseased, and rarely live long enough to attain any commercial value. Currently, only one registered product, carbaryl, is effective against "M. robiniae". It is applied in a single dose when adults are most active (August/September).
https://en.wikipedia.org/wiki?curid=20766584
1,278,204
100,678
The development of fiber-reinforced plastic for commercial use was extensively researched in the 1930s. It was of particular interest to the aviation industry. A means of mass production of glass strands was accidentally discovered in 1932 when a researcher at Owens-Illinois directed a jet of compressed air at a stream of molten glass and produced fibers. After Owens merged with the Corning company in 1935, Owens Corning adapted the method to produce its patented "Fiberglas" (one "s"). A suitable resin for combining the "Fiberglas" with a plastic was developed in 1936 by DuPont. The first ancestor of modern polyester resins is Cyanamid's of 1942. Peroxide curing systems were used by then.
https://en.wikipedia.org/wiki?curid=174431
100,633
64,270
Some scholars trace the origins of natural science as far back as pre-literate human societies, where understanding the natural world was necessary for survival. People observed and built up knowledge about the behavior of animals and the usefulness of plants as food and medicine, which was passed down from generation to generation. These primitive understandings gave way to more formalized inquiry around 3500 to 3000 BC in the Mesopotamian and Ancient Egyptian cultures, which produced the first known written evidence of natural philosophy, the precursor of natural science. While the writings show an interest in astronomy, mathematics, and other aspects of the physical world, the ultimate aim of inquiry about nature's workings was in all cases religious or mythological, not scientific.
https://en.wikipedia.org/wiki?curid=38890
64,245
1,162,115
Federal law places restrictions on funding and use of hES cells through amendments to the budget bill. In 2001, George W. Bush implemented a policy limiting the number of stem cell lines that could be used for research. There were some state laws concerning stem cells that were passed in the mid-2000s. New Jersey's 2004 S1909/A2840 specifically permitted human cloning for the purpose of developing and harvesting human stem cells, and Missouri's 2006 Amendment Two legalized certain forms of embryonic stem cell research in the state. On the other hand, Arkansas, Indiana, Louisiana, Michigan, North Dakota and South Dakota passed laws to prohibit the creation or destruction of human embryos for medical research.
https://en.wikipedia.org/wiki?curid=22400875
1,161,498
8,991
Based on studies to grow the Mercury spacecraft capabilities to long-duration flights, developing space rendezvous techniques, and precision Earth landing, Project Gemini was started as a two-man program in 1961 to overcome the Soviets' lead and to support the planned Apollo crewed lunar landing program, adding extravehicular activity (EVA) and rendezvous and docking to its objectives. The first crewed Gemini flight, Gemini 3, was flown by Gus Grissom and John Young on March 23, 1965. Nine missions followed in 1965 and 1966, demonstrating an endurance mission of nearly fourteen days, rendezvous, docking, and practical EVA, and gathering medical data on the effects of weightlessness on humans.
https://en.wikipedia.org/wiki?curid=18426568
8,987
1,108,200
Historically, laminectomies have been the primary way to treat lumbar spinal stenosis. A laminectomy is a more invasive method with the aim to decrease the total amount of pain and numbness associated with lumbar spinal stenosis. It is a surgery that eliminates the entire lamina to allow the nerves around this region to function properly. Laminectomies also often produce a longer recovery time as well as a greater risk for post-operative complications. There is typically more damage to the surrounding muscle tissue accompanied by a laminectomy. Since a laminectomy involves the excision of the entire lamina, a laminectomy will usually cause more spinal instability than a laminotomy. When going with the option of laminotomy, the procedure reduces the total amount of muscle severed. Because a laminotomy does not damage the spinous process and critical ligaments, there is not as much muscle weakness, pain, and lumbar instability seen with laminectomies. Laminotomies are fairly new compared to laminectomies, and it involves using less invasive methods with precise instruments to minimize the risk of tissue damage.
https://en.wikipedia.org/wiki?curid=14315840
1,107,636
1,473,917
Addison’s disease is an autoimmune disorder that affects the adrenal cortex such that it is unable to efficiently secrete hormones. The immune system specifically targets the cells of the adrenal cortex and destroys them, but Addison’s disease can also be caused by a severe infection such as tuberculosis. Some symptoms include hypoglycemia and decreased blood sodium levels and increased blood potassium levels caused by a deficiency of aldosterone. These electrolyte imbalances induce nerve and muscle issues. Other symptoms include fatigue, salt cravings, weight loss, and increased skin pigmentation. Increased skin pigmentation is caused by a deficiency of the adrenocortical hormone hydrocortisone. Its normal behavior would be as negative feedback at the pituitary gland, stimulating the pituitary gland to decrease secretion of corticotropin. Because hydrocortisone is not able to be produced in Addison’s disease, the pituitary gland continues to secrete corticotropin which binds to the receptor for melanocyte-stimulating hormone. It then causes melanocytes to produce more pigment, thus darkening the skin tone.
https://en.wikipedia.org/wiki?curid=4561837
1,473,086
1,875,938
A massively parallel high-performance computing (HPC) system is particularly sensitive to operating system overhead. Traditional multi-purpose operating systems are designed to support a wide range of usage models and requirements. To support the range of needs, a large number of system processes are provided and are often inter-dependent on each other. The computing overhead of these processes leads to an unpredictable amount of processor time available to a parallel application. A very common parallel programming model is referred to as the bulk synchronous parallel model which often employs Message Passing Interface (MPI) for communication. The synchronization events are made at specific points in the application code. If one processor takes longer to reach that point than all the other processors, everyone must wait. The overall finish time is increased. Unpredictable operating system overhead is one significant reason a processor might take longer to reach the synchronization point than the others.
https://en.wikipedia.org/wiki?curid=25529780
1,874,861
1,300,149
The research work has been stranded since 2014, when the new administration of RECOPE decided to not continue with the initiative arguing doubts about the legal authority of RECOPE to invest in clean energy. In March 2015, the CEO of Ad Astra Rocket Company and former Costa Rican-American astronaut, Dr. Franklin Chang Diaz, announced the end of relations with RECOPE due their lack of definition and the delays the project was suffering. The announcement was followed by harsh criticism of the population and national media against RECOPE's board of directors as well as other governmental institutions involved in the decision.
https://en.wikipedia.org/wiki?curid=48105272
1,299,435
1,531,291
The track listing for "Heart Theory" goes through the seven stages of grief in order, as follows: shock ("Hits Me"), denial ("How Good" and "I Don't Love You"), anger ("Want Me Back", "Get Over You", and "Wrong Girl"), bargaining ("Body Language of a Breakup"), depression ("Good on You"), testing ("The Other Side" and "Go To"), and acceptance ("Make You" and "Ready to Love"). The majority of the songs lyrically explore the impact of various forms of heartbreak on Ell's personal life. "Make You" was the last song written for the album and references Ell's past experiences with sexual abuse; she established the "Make You Movement Fund" supporting at-risk youth, domestic abuse and sexual assault survivors in conjunction with the song's release on July 7, 2020.
https://en.wikipedia.org/wiki?curid=64394275
1,530,425
252,231
In its modern inception, high-throughput genome sequencing involves fragmenting the genome into small single-stranded pieces, followed by amplification of the fragments by polymerase chain reaction (PCR). Adopting the Sanger method, each DNA fragment is irreversibly terminated with the incorporation of a fluorescently labeled dideoxy chain-terminating nucleotide, thereby producing a DNA “ladder” of fragments that each differ in length by one base and bear a base-specific fluorescent label at the terminal base. Amplified base ladders are then separated by capillary array electrophoresis (CAE) with automated, "in situ" “finish-line” detection of the fluorescently labeled ssDNA fragments, which provides an ordered sequence of the fragments. These sequence reads are then computer assembled into overlapping or contiguous sequences (termed "contigs") which resemble the full genomic sequence once fully assembled.
https://en.wikipedia.org/wiki?curid=1708335
252,098
1,274,447
Price, Reed, and Papin, from the Palsson lab, use a method of singular value decomposition (SVD) of extreme pathways in order to understand regulation of a human red blood cell metabolism. Extreme pathways are convex basis vectors that consist of steady state functions of a metabolic network. For any particular metabolic network, there is always a unique set of extreme pathways available. Furthermore, Price, Reed, and Papin, define a constraint-based approach, where through the help of constraints like mass balance and maximum reaction rates, it is possible to develop a ‘solution space’ where all the feasible options fall within. Then, using a kinetic model approach, a single solution that falls within the extreme pathway solution space can be determined. Therefore, in their study, Price, Reed, and Papin, use both constraint and kinetic approaches to understand the human red blood cell metabolism. In conclusion, using extreme pathways, the regulatory mechanisms of a metabolic network can be studied in further detail.
https://en.wikipedia.org/wiki?curid=3408308
1,273,755
20,028
Goodall's research at Gombe Stream is best known to the scientific community for challenging two long-standing beliefs of the day: that only humans could construct and use tools, and that chimpanzees were vegetarians. While observing one chimpanzee feeding at a termite mound, she watched him repeatedly place stalks of grass into termite holes, then remove them from the hole covered with clinging termites, effectively "fishing" for termites. The chimpanzees would also take twigs from trees and strip off the leaves to make the twig more effective, a form of object modification that is the rudimentary beginnings of toolmaking. Humans had long distinguished themselves from the rest of the animal kingdom as "Man the Toolmaker". In response to Goodall's revolutionary findings, Louis Leakey wrote, "We must now redefine man, redefine tool, or accept chimpanzees as human!"
https://en.wikipedia.org/wiki?curid=45397
20,020
1,041,242
Philosophers of biology have also examined the notion of “teleology.” Some have argued that scientists have had no need for a notion of cosmic teleology that can explain and predict evolution, since one was provided by Darwin. But teleological explanations relating to purpose or function have remained useful in biology, for example, in explaining the structural configuration of macromolecules and the study of co-operation in social systems. By clarifying and restricting the use of the term “teleology” to describe and explain systems controlled strictly by genetic programmes or other physical systems, teleological questions can be framed and investigated while remaining committed to the physical nature of all underlying organic processes. While some philosophers claim that the ideas of Charles Darwin ended the last remainders of teleology in biology, the matter continues to be debated. Debates in these areas of philosophy of biology turn on how one views reductionism more generally.
https://en.wikipedia.org/wiki?curid=1551073
1,040,699
1,350,042
The British cyclists, for example doubled their medal target on 19 August when Victoria Pendleton won Britain's 12th cycling medal, a gold in the women's sprint. A further two medals were already guaranteed at this stage in the men's individual sprint, where gold and silver were soon won by Chris Hoy and Jason Kenny respectively. In all Team GB won seven of the ten gold medals up for grabs at the velodrome. The swimmers also managed to double the targeted number of medals in their sport when David Davies won the team's sixth swimming medal – a silver medal in the men's 10 km open water marathon on 21 August. Despite the men's and women's archery teams having come second and third respectively at the 2007 world championships, British archers were unable to win either of their targeted medals. This led to criticism of the tactics used by head coach Peter Suk from members of the team.
https://en.wikipedia.org/wiki?curid=14879786
1,349,296
1,001,853
Though Gibbs's research on physical optics is less well known today than his other work, it made a significant contribution to classical electromagnetism by applying Maxwell's equations to the theory of optical processes such as birefringence, dispersion, and optical activity. In that work, Gibbs showed that those processes could be accounted for by Maxwell's equations without any special assumptions about the microscopic structure of matter or about the nature of the medium in which electromagnetic waves were supposed to propagate (the so-called luminiferous ether). Gibbs also stressed that the absence of a longitudinal electromagnetic wave, which is needed to account for the observed properties of light, is automatically guaranteed by Maxwell's equations (by virtue of what is now called their "gauge invariance"), whereas in mechanical theories of light, such as Lord Kelvin's, it must be imposed as an "ad hoc" condition on the properties of the aether.
https://en.wikipedia.org/wiki?curid=37332
1,001,335
2,177,519
'Klemmer' is a tall, fast growing tree, with a straight cylindrical stem and ascending branches, initially forming a narrow, conical or pyramidal head which later broadens, and producing numerous root-suckers and some epicormic shoots. The bark, smooth in young trees, is later fissured. The leaves are ovate, up to 7.5 cm (3 in) long (Krüssmann says up to 10 cm) and up to 5.0 cm (2 in) broad, shortly acuminate at the apex, the upper surface dark green, scabrous and glabrescent, the margins slightly crispate. The seed is situated close to the notch of the samara. The timber is reddish in hue, strong but liable to warping. Feneau noted (1902) that young trees were susceptible to frost damage.
https://en.wikipedia.org/wiki?curid=8561639
2,176,275
199,260
Full acclimatization requires days or even weeks. Gradually, the body compensates for the respiratory alkalosis by renal excretion of bicarbonate, allowing adequate respiration to provide oxygen without risking alkalosis. It takes about four days at any given altitude and can be enhanced by drugs such as acetazolamide. Eventually, the body undergoes physiological changes such as lower lactate production (because reduced glucose breakdown decreases the amount of lactate formed), decreased plasma volume, increased hematocrit (polycythemia), increased RBC mass, a higher concentration of capillaries in skeletal muscle tissue, increased myoglobin, increased mitochondria, increased aerobic enzyme concentration, increase in 2,3-BPG, hypoxic pulmonary vasoconstriction, and right ventricular hypertrophy. Pulmonary artery pressure increases in an effort to oxygenate more blood.
https://en.wikipedia.org/wiki?curid=9091093
199,157
1,204,998
The NenuFAR telescope is co-located at the Nançay radio telescope. It is an extension of the Nançay LOFAR station (FR606), adding 96 low frequency tiles, each consisting of a "mini-array" of 19 crossed-dipole antennas, distributed in a circle with a diameter of approximately 400 m. The tiles are a hexagonal cluster with analogically phased antennas. The telescope can capture radio frequencies in the 10-85 MHz range, covering the LOFAR-Low Band (30-80 MHz) range as well. The NenuFAR array can work as a high-sensitivity LOFAR-compatible super-LBA station (LSS), operating together with rest of LOFAR to increase to array's global sensitivity by nearly a factor of two, and improve the array's imaging capabilities. It can also function as a second supercore to improve array availability. Due to its dedicated receiver, NenuFAR can also operate as a standalone instrument, known as NenuFAR/Standalone in this mode.<ref name="NenuFAR/LSS"></ref>
https://en.wikipedia.org/wiki?curid=1524766
1,204,353
669,311
The cosmic background hard radiation will ionize the rocket's hull over time and poses a health threat. Also, gas plasma interactions may cause space charge. The major interaction of concern is differential charging of various parts of a spacecraft, leading to high electric fields and arcing between spacecraft components. This can be resolved with well placed plasma contactor. However, there is no solution yet for when plasma contactors are turned off to allow maintenance work on the hull. Long term space flight at interstellar velocities causes erosion of the rocket's hull due to collision with particles, gas, dust and micrometeorites. At 0.2formula_15 for a 6 light year distance, erosion is estimated to be in the order of about 30 kg/m or about 1 cm of aluminum shielding.
https://en.wikipedia.org/wiki?curid=37854
668,961
776,194
Recently, antibodies have been used to stain particular proteins, lipids and carbohydrates. Called immunohistochemistry, this technique has greatly increased the ability to specifically identify categories of cells under a microscope. Other advanced techniques include in situ hybridization to identify specific DNA or RNA molecules. These antibody staining methods often require the use of frozen section histology. These procedures above are also carried out in the laboratory under scrutiny and precision by a trained specialist medical laboratory scientist (a histoscientist). Digital cameras are increasingly used to capture histopathological images.
https://en.wikipedia.org/wiki?curid=714434
775,778
311,480
Confidentiality is mandated in the United States by the Health Insurance Portability and Accountability Act of 1996 known as HIPAA, specifically the Privacy Rule, and various state laws, some more rigorous than HIPAA. However, numerous exceptions to the rules have been carved out over the years. For example, many states require physicians to report gunshot wounds to the police and impaired drivers to the Department of Motor Vehicles. Confidentiality is also challenged in cases involving the diagnosis of a sexually transmitted disease in a patient who refuses to reveal the diagnosis to a spouse, and in the termination of a pregnancy in an underage patient, without the knowledge of the patient's parents. Many states in the U.S. have laws governing parental notification in underage abortion. Those working in mental health have a duty to warn those who they deem to be at risk from their patients in some countries.
https://en.wikipedia.org/wiki?curid=237248
311,312
1,525,764
Approximately 16 km resolution with 70 vertical levels. Covers the entire globe and 168 hours in the future twice a day, the shortest outlook of the synoptic scale models currently in use (most others run out at least 10 days; furthermore, the Unified Model forecasts are only available out 72 hours for non-paying users). The Global model provides boundary information for the now retired North Atlantic European (NAE) model, for which additional shorter runs (48 hours) are produced twice a day. The model is kept close to the real atmosphere using hybrid 4D-Var data assimilation of observations.
https://en.wikipedia.org/wiki?curid=18615870
1,524,902
1,197,475
During the early 1970s, Tim Rand demonstrated dichotic perception at Haskins Laboratories. In his study, the first stimuli: formant (F1), was presented to one ear while the second and third stimuli:(F2) and (F3) formants, were presented to the opposite ear. F2 and F3 varied in low and high intensity. Ultimately, in comparison to the binaural condition, "peripheral masking is avoided when speech is heard dichotically." This demonstration was originally known as "the Rand effect" but was later renamed "dichotic release from masking". The name for this demonstration continued to evolve and was finally named "dichotic perception" or "dichotic listening." Around the same time, Jim Cutting (1976), an investigator at Haskins Laboratories, researched how listeners could correctly identify syllables when different components of the syllable were presented to different ears. The formants of vowel sounds and their relation are crucial in differentiating vowel sounds. Even though the listeners heard two separate signals with neither ear receiving a 'complete' vowel sound, they could still identify the syllable sounds.
https://en.wikipedia.org/wiki?curid=32036278
1,196,834
634,025
Some authorities restrict the definition of vernal pools to exclude seasonal wetlands that have defined inlet and outlet channels. The justification is that such seasonal wetlands tend to be qualitatively different from isolated vernal pools; this is because they are fed by larger drainage basins so that firstly, inflow contributes higher concentrations of dissolved minerals. Secondly, flow patterns increase the periodic scouring and silting effect of flows through or simply into the wetland. Thirdly, longer distance inflow and outflow make for less strictly endemic populations and plants. Low dissolved mineral concentrations of smaller vernal pool basins may be characterized as oligotrophic, and poorly buffered with rapid pH shifts due to carbon dioxide uptake during photosynthesis.
https://en.wikipedia.org/wiki?curid=1337327
633,687
356,029
The first teacher training course was held in India with 30 participants in 1967 and 200 participants in 1970. A four-month teacher training course was also held in the United States that year. The first part was four weeks long and was offered in both Poland, Maine and Humboldt, California with the final three months being held in Estes Park, Colorado. About 300 people completed the training. In 1973, the TM teacher training course consisted of three months in-residence. A 2007 TM web page and 2009 book, report that the TM teacher training course in more modern times consists of six months in-residence, and includes courses in Maharishi Vedic Science, extended meditation practice and becoming the "custodian" for an "ancient Vedic tradition". Additionally, TM teachers are trained to speak on the Transcendental Meditation program, teach it to others, provide "personal checking" of their students' meditation, create lectures on related topics, organise and lead advanced TM courses and programs. The Maharishi trained his teachers to "make logical presentations in language suitable to their audiences", and teachers lead their students through a sequence of predetermined steps.
https://en.wikipedia.org/wiki?curid=28677895
355,846
1,850,348
Beginning in 1961, the North Atlantic Organised Track System (NAT-OTS) was created, wherein specific routes were defined daily in order for pilots to safely and efficiently fly across the North Atlantic between Europe and America. The first officially published tracks appeared in 1965, and later on similar track systems evolved in other high-traffic areas such as the Pacific Organised Track System. However, as demand increased in the North Atlantic airline market, traffic increased to such a point that a way to increase traffic flow had to be found. The forerunner of RLAT/RLatSM, RVSM - Reduced Vertical Separation Minima - first introduced in 1997, reduced the standard altitude spacing between aircraft from 2,000 feet to 1,000 feet. RVSM allowed more aircraft to operate on the same route, thereby improving fuel efficiency and performance.
https://en.wikipedia.org/wiki?curid=48855440
1,849,290
251,465
Photosynthesis occurs in two stages in a cell. In the first stage, light-dependent reactions capture the energy of light and use it to make the energy-storage molecule ATP and the moderate-energy hydrogen carrier NADPH. The Calvin cycle uses these compounds to convert carbon dioxide and water into organic compounds that can be used by the organism (and by animals that feed on it). This set of reactions is also called "carbon fixation". The key enzyme of the cycle is called RuBisCO. In the following biochemical equations, the chemical species (phosphates and carboxylic acids) exist in equilibria among their various ionized states as governed by the pH.
https://en.wikipedia.org/wiki?curid=1104705
251,332
1,695,659
These artificial atoms are often used to explore the phenomena of quantum coherence. This allows for the study of squeezed light which is known for creating more precise measurements. It is difficult to explore the resonance fluorescence of squeezed light in a typical two-level atom as all modes of the electromagnetic field must be squeezed which cannot easily be accomplished. In an artificial atom, the number of possible modes of the field is significantly limited allowing for easier study of squeezed light. In 2016 D.M. Toyli et al., performed an experiment in which two superconducting parametric amplifiers were used to generate squeezed light and then detect resonance fluorescence in artificial atoms from the squeezed light. Their results agreed strongly with the theory describing the phenomena. The implication of this study is it allows for resonance fluorescence to assist in qubit readout for squeezed light. The qubit used in the study was an aluminum transmon circuit that was then coupled to a 3-D aluminum cavity. Extra silicon chips were introduced to the cavity to assist in the tuning of resonance to that of the cavity. The majority of the detuning that did occur was a result of the degeneration of the qubit over time.
https://en.wikipedia.org/wiki?curid=11230975
1,694,707
119,011
Ishii was arrested by United States authorities during the Occupation of Japan at the end of World War II and, along with other leaders, was supposed to be thoroughly interrogated by Soviet authorities. Instead, Ishii and his team managed to negotiate and receive immunity in 1946 from Japanese war-crimes prosecution before the Tokyo tribunal in exchange for their full disclosure. Although the Soviet authorities wished the prosecutions to take place, the United States objected after the reports of the investigating US microbiologists. Among these was Edwin Hill, the Chief of Fort Detrick, whose report stated that the information was "absolutely invaluable;" it "could never have been obtained in the United States because of scruples attached to experiments on humans" and "the information was obtained fairly cheaply." On May 6, 1947, Douglas MacArthur wrote to Washington, D.C., that "additional data, possibly some statements from Ishii probably can be obtained by informing Japanese involved that information will be retained in intelligence channels and will not be employed as 'War Crimes' evidence."
https://en.wikipedia.org/wiki?curid=1789793
118,963
646,742
In analog systems, each horizontal line is transmitted as a high-frequency analog signal. Each picture element (pixel) is therefore converted to an analog electrical value (voltage), and changes in values between pixels therefore become changes in voltage. The transmission standards require that the sampling be done in a fixed time (outlined below), so more pixels per line becomes a requirement for more voltage changes per unit time, i.e. higher frequency. Since such signals are typically band-limited by cables, amplifiers, recorders, transmitters, and receivers, the band-limitation on the analog signal acts as an effective low-pass filter on the spatial resolution. The difference in resolutions between VHS (240 discernible lines per scanline), Betamax (280 lines), and the newer ED Beta format (500 lines) is explained primarily by the difference in the recording bandwidth.
https://en.wikipedia.org/wiki?curid=1977279
646,402
1,643,832
As of 2022, the university incorporates 7 institutes (the Institute of Computer Systems and Information Security, the Institute of Construction and Transport Infrastructure, the Institute of Economics, Management and Business, the Institute of Food and Processing Industry, the Institute of Fundamental Sciences, the Institute of Mechanics, Robotics, Engineering of Transport and Technical Systems, and the Institute of Oil, Gas and Power Engineering), and the further education college of engineering and technology. Other university subdivisions include the KubSTU — Schneider-Electric training center, the center of high education, the Russian Minobrnauka regional center of testing, 6 research-training centers, 6 centres of high-tech equipment for collective use, 6 small-scale innovative enterprises, 4 student design offices, a student innovative business incubator, 450 specialized laboratories, 6 hostels, the Polytechnic sports centre, and 3 holiday camps at the seaside. KubSTU also has branches in Novorossiysk and Armavir.
https://en.wikipedia.org/wiki?curid=3274174
1,642,905
1,191,786
Pnictogens (nitrogen's periodic table column) show very similar trends in reactivity and acidity of the highest fluorides (pentafluorides) and most common ones (trifluorides), with the said property increasing down the group: NF is stable against hydrolysis, PF hydrolyzes very slowly in moist air, while AsF completely hydrolyzes. SbF hydrolyzes only partially because of the increasing ionic character of the bond to fluorine. The compounds are weak Lewis bases, with NF again being an exception. The pentafluorides of phosphorus and arsenic are much more reactive than their trifluorides; antimony pentafluoride is such a strong acid that it holds the title of the strongest Lewis acid. Nitrogen is not known to form a pentafluoride, although the tetrafluoroammonium cation () features nitrogen in the formal oxidation state of +5. Nitrogen monofluoride is a metastable species that has been observed in laser studies. It is isoelectronic with O and, unusually, like BF, has a higher bond order than single-bonded fluorine.
https://en.wikipedia.org/wiki?curid=39292926
1,191,151
2,192,528
Williams Ice Stream is an ice stream about fifteen miles (24 km) long flowing into Venable Ice Shelf just east of Fletcher Peninsula. Named by Advisory Committee on Antarctic Names (US-ACAN) after Richard S. Williams, Jr., senior research geologist, United States Geological Survey (USGS), Woods Hole, Massachusetts, authority in aerial and satellite investigations of geomorphic processes and the fluctuations of glaciers on a global basis, particularly in Iceland and Antarctica; project leader of the team that is compiling 25 Glaciological and Coastal-Change Maps of Antarctica, and that compiled the 1:5,000,000-scale Advanced Very High Resolution Radiometer maps of Antarctica.
https://en.wikipedia.org/wiki?curid=11458660
2,191,278
62,089
In 1935, Watson-Watt was asked to judge recent reports of a German radio-based death ray and turned the request over to Wilkins. Wilkins returned a set of calculations demonstrating the system was basically impossible. When Watson-Watt then asked what such a system might do, Wilkins recalled the earlier report about aircraft causing radio interference. This revelation led to the Daventry Experiment of 26 February 1935, using a powerful BBC shortwave transmitter as the source and their GPO receiver setup in a field while a bomber flew around the site. When the plane was clearly detected, Hugh Dowding, the Air Member for Supply and Research was very impressed with their system's potential and funds were immediately provided for further operational development. Watson-Watt's team patented the device in GB593017.
https://en.wikipedia.org/wiki?curid=25676
62,064
1,995,870
The Aerial Reconfigurable Embedded System (ARES) was a concept for an unmanned VTOL flight module that can transport various payloads. The concept started as the TX (Transformer) in 2009 for a terrain-independent transportation system centered on a ground vehicle that could be configured into a VTOL air vehicle and carry four troops. ARES' primary function was the same as TX, to use flight to avoid ground-based transportation threats like ambushes and IEDs for units that don't have helicopters for those missions. It was to be powered by twin tilting ducted fans and have its own power system, fuel, digital flight controls, and remote command-and-control interfaces. The flight module would have different detachable mission modules for specific purposes including cargo delivery, CASEVAC, and ISR. Up to of payload would be carried by a module.
https://en.wikipedia.org/wiki?curid=27108158
1,994,727
1,622,640
Interventional oncology (abbreviated IO) is a subspecialty field of interventional radiology that deals with the diagnosis and treatment of cancer and cancer-related problems using targeted minimally invasive procedures performed under image guidance. Interventional oncology has developed to a separate pillar of modern oncology and it employs X-ray, ultrasound, computed tomography (CT) or magnetic resonance imaging (MRI) to help guide miniaturized instruments (e.g. biopsy needles, ablation electrodes, intravascular catheters) to allow targeted and precise treatment of solid tumours (also known as neoplasms) located in various organs of the human body, including but not limited to the liver, kidneys, lungs, and bones. Interventional oncology treatments are routinely carried out by interventional radiologists in appropriate settings and facilities.
https://en.wikipedia.org/wiki?curid=46627280
1,621,724
1,564,898
In materials science, Ostwald's rule or Ostwald's step rule, conceived by Wilhelm Ostwald, describes the formation of polymorphs. The rule states that usually the less stable polymorph crystallizes first. Unstable polymorphs more closely resemble the state in solution, and thus are kinetically advantaged. From hot water, metastable, fibrous crystals of benzamide appear first, later to spontaneously convert to the more stable rhombic polymorph. Another example is magnesium carbonate, which more readily forms dolomite. A dramatic example is phosphorus, which upon sublimation first forms the less stable white phosphorus, which only slowly polymerizes to the red allotrope. This is notably the case for the anatase polymorph of titanium dioxide, which having a lower surface energy is commonly the first phase to form by crystallisation from amorphous precursors or solutions despite being metastable, with rutile being the equilibrium phase at all temperatures and pressures.
https://en.wikipedia.org/wiki?curid=13330831
1,564,011
1,777,042
Recertification is established through continuing education. A minimum of 100 approved continuing education (CE) credits must be submitted no later than one month prior to the expiration of the certification and a minimum of 75 of CECs must be completed no later than 3 months prior to the expiration. At least 16 clinical hours must be obtained by completing an approved review class. Programs listed on the IBSC recertification page have submitted an Approved Review Course Application from IBSC's Detailed Content Outline (or Blueprint) that includes a letter from their Program Director outlining why they should be approved to teach this course, a content outline, a letter of support from the medical director, a copy of medical director's resume as well as a list all faculty for the class and a copy of each faculty member's resume and credentials and a list of proposed course dates and locations. The IBSC evaluates this information to validate that 16 clinical hours meet the requirements of the Detailed Content Outline to ensure that the education meets basic requirements for recertification. If the FP-C renewal candidate has not achieved the required 100 CECs by expiration they must retake the FP-C exam to re-certify.
https://en.wikipedia.org/wiki?curid=6286678
1,776,043
15,476
Attempts to identify and use best intervention practices for students with autism also pose a challenge due to over dependence on popular or well-known interventions and curricula. Some evidence suggests that although these interventions work for some students, there remains a lack of specificity for which type of student, under what environmental conditions (one-on-one, specialized instruction or general education) and for which targeted deficits they work best. More research is needed to identify what assessment methods are most effective for identifying the level of educational needs for students with ASD. Additionally, children living in higher resources settings in the United States tend to experience earlier ASD interventions than children in lower resource settings (e.g. rural areas).
https://en.wikipedia.org/wiki?curid=29113700
15,471
2,110,811
The adult females usually lay their relatively large eggs individually, several centimeters deep in the ground using the ovipositor. The eggs, between 6 and 12 mm long and 4.5 to 7 mm wide, are considered to be the heaviest insect eggs. Their shape is typically egg-shaped with either a blunt or a pointed lower pole. It looks similar with the lid (operculum). It is circular and can be raised flat or slightly pointed in the middle. The micropyle is located between the two lower arms of a four-armed micropylar plate. These four arms are aligned in an x-shape, whereby the lower arms are usually shorter and lie next to each other at a larger angle or even in a line. In some species the arms are extended at the ends, in others around the point of intersection. Depending on the species, it takes 6 to 12 months until the nymphs hatching. It takes usually a similar period of time until the are adult. In addition to species with an average life expectancy, there are species that reach an age that is astonishing for phasmids at up to five years.
https://en.wikipedia.org/wiki?curid=67792625
2,109,597
379,775
In 1812, Russian engineer Pavel Shilling exploded an underwater mine using an electrical circuit. In 1842 Samuel Colt used an electric detonator to destroy a moving vessel to demonstrate an underwater mine of his own design to the United States Navy and President John Tyler. However, opposition from former president John Quincy Adams, scuttled the project as "not fair and honest warfare". In 1854, during the unsuccessful attempt of the Anglo-French fleet to seize the Kronstadt fortress, British steamships HMS "Merlin" (9 June 1855, the first successful mining in history), HMS "Vulture" and HMS "Firefly" suffered damage due to the underwater explosions of Russian naval mines. Russian naval specialists set more than 1,500 naval mines, or "infernal machines", designed by Moritz von Jacobi and by Immanuel Nobel, in the Gulf of Finland during the Crimean War of 1853–1856. The mining of "Vulcan" led to the world's first minesweeping operation. During the next 72 hours, 33 mines were swept.
https://en.wikipedia.org/wiki?curid=22102
379,580