source
stringlengths
32
209
text
stringlengths
18
1.5k
https://en.wikipedia.org/wiki/Head%20direction%20cell
Head direction (HD) cells are neurons found in a number of brain regions that increase their firing rates above baseline levels only when the animal's head points in a specific direction. They have been reported in rats, monkeys, mice, chinchillas and bats, but are thought to be common to all mammals, perhaps all verte...
https://en.wikipedia.org/wiki/Quickselect
In computer science, quickselect is a selection algorithm to find the kth smallest element in an unordered list, also known as the kth order statistic. Like the related quicksort sorting algorithm, it was developed by Tony Hoare, and thus is also known as Hoare's selection algorithm. Like quicksort, it is efficient in ...
https://en.wikipedia.org/wiki/Bingel%20reaction
The Bingel reaction in fullerene chemistry is a fullerene cyclopropanation reaction to a methanofullerene first discovered by C. Bingel in 1993 with the bromo derivative of diethyl malonate in the presence of a base such as sodium hydride or DBU. The preferred double bonds for this reaction on the fullerene surface ar...
https://en.wikipedia.org/wiki/Energy%20derivative
An energy derivative is a derivative contract based on (derived from) an underlying energy asset, such as natural gas, crude oil, or electricity. Energy derivatives are exotic derivatives and include exchange-traded contracts such as futures and options, and over-the-counter (i.e., privately negotiated) derivatives suc...
https://en.wikipedia.org/wiki/Total%20body%20irradiation
Total body irradiation (TBI) is a form of radiotherapy used primarily as part of the preparative regimen for haematopoietic stem cell (or bone marrow) transplantation. As the name implies, TBI involves irradiation of the entire body, though in modern practice the lungs are often partially shielded to lower the risk of ...
https://en.wikipedia.org/wiki/LXD%20Incorporated
LXD, Incorporated is one of the first Liquid Crystal Display manufacturers in the world. The company, headquartered in Cleveland, Ohio, has factories in the United States and China. History LXD, Incorporated was founded as ILIXCO (International Liquid Xtal Company) by James Fergason in 1968 in Kent, Ohio and was the f...
https://en.wikipedia.org/wiki/The%20Gene%20Generation
The Gene Generation is a 2007 biopunk science fiction action film about an assassin who battles DNA hackers. The film was directed by Pearry Reginald Teo, and stars Bai Ling, Parry Shen, Faye Dunaway, and Alec Newman. Synopsis The story revolves around Michelle, an assassin who navigates the challenges of battling DNA...
https://en.wikipedia.org/wiki/Plectasin
Plectasin is an antibiotic protein from the mushroom Pseudoplectania nigrella. It was initially discovered in 2005 and commercialised by Novozymes. Plectasin belongs to the antimicrobial peptide class called fungal defensins, which is also present in invertebrates such as flies and mussels. Clinical trials Pre-clinic...
https://en.wikipedia.org/wiki/Proprotein%20convertase%201
Proprotein convertase 1, also known as prohormone convertase, prohormone convertase 3, or neuroendocrine convertase 1 and often abbreviated as PC1/3 is an enzyme that in humans is encoded by the PCSK1 gene. PCSK1 and PCSK2 differentially cleave proopiomelanocortin and they act together to process proinsulin and progluc...
https://en.wikipedia.org/wiki/Verna%20Mae%20Slone
Verna Mae Slone (October 9, 1914 – January 5, 2009) was an Appalachian author from Knott County, Kentucky. Early life She was born in Hindman, KY to Isom B. Slone and Sarah Owens Slone. Verna grew up in the Eastern mountains of Kentucky near the town of Pippa Passes and is the tenth generation of her family to live in...
https://en.wikipedia.org/wiki/Olav%20Reiers%C3%B8l
Olav Reiersøl (28 June 1908 – 14 February 2001) was a Norwegian statistician and econometrician, who made several substantial contributions to econometrics and statistics. His works on identifiability and instrumental variables are standard references both in econometrics and statistics, and his work on genetic algebra...
https://en.wikipedia.org/wiki/Reactor%20pressure%20vessel
A reactor pressure vessel (RPV) in a nuclear power plant is the pressure vessel containing the nuclear reactor coolant, core shroud, and the reactor core. Classification of nuclear power reactors Russian Soviet era RBMK reactors have each fuel assembly enclosed in an individual 8 cm diameter pipe rather than having a...
https://en.wikipedia.org/wiki/Rostral%20migratory%20stream
The rostral migratory stream (RMS) is a specialized migratory route found in the brain of some animals along which neuronal precursors that originated in the subventricular zone (SVZ) of the brain migrate to reach the main olfactory bulb (OB). The importance of the RMS lies in its ability to refine and even change an a...
https://en.wikipedia.org/wiki/Azodicarbonamide
Azodicarbonamide, ADCA, ADA, or azo(bis)formamide, is a chemical compound with the molecular formula . It is a yellow to orange-red, odorless, crystalline powder. It is sometimes called a 'yoga mat' chemical because of its widespread use in foamed plastics. It was first described by John Bryden in 1959. Synthesis It i...
https://en.wikipedia.org/wiki/Atlascopcosaurus
Atlascopcosaurus () is a genus of herbivorous basal iguanodont dinosaur from the Early Cretaceous of the present Australia. Classification The type specimen, NMV P166409, was found in 1984 at the Dinosaur Cove East site at the coast of Victoria, in layers of the Eumeralla Formation dating from the early Cretaceous, ...
https://en.wikipedia.org/wiki/Doubly%20stochastic%20matrix
In mathematics, especially in probability and combinatorics, a doubly stochastic matrix (also called bistochastic matrix) is a square matrix of nonnegative real numbers, each of whose rows and columns sums to 1, i.e., Thus, a doubly stochastic matrix is both left stochastic and right stochastic. Indeed, any matrix ...
https://en.wikipedia.org/wiki/Edubuntu
Edubuntu, previously known as Ubuntu Education Edition, is an official derivative of the Ubuntu operating system designed for use in classrooms inside schools, homes and communities. Edubuntu is developed in collaboration with teachers and technologists in several countries. Edubuntu is built on top of the Ubuntu base...
https://en.wikipedia.org/wiki/Cystolith
Cystolith (Gr. "cavity" and "stone") is a botanical term for outgrowths of the epidermal cell wall, usually of calcium carbonate, formed in a cellulose matrix in special cells called lithocysts, generally in the leaf of plants. Cystoliths are present in certain families, including in many genera of Acanthaceae. Plants...
https://en.wikipedia.org/wiki/Equation%20of%20the%20center
In two-body, Keplerian orbital mechanics, the equation of the center is the angular difference between the actual position of a body in its elliptical orbit and the position it would occupy if its motion were uniform, in a circular orbit of the same period. It is defined as the difference true anomaly, , minus mean ano...
https://en.wikipedia.org/wiki/Agarophyte
An agarophyte is a seaweed, usually a red alga, that produces the hydrocolloid agar in its cell walls. This agar can be harvested commercially for use in biological experiments and culturing. In some countries (especially in the developing world), the harvesting of agarophytes, either as natural stocks or a cultivated ...
https://en.wikipedia.org/wiki/Macronucleus
A macronucleus (formerly also meganucleus) is the larger type of nucleus in ciliates. Macronuclei are polyploid and undergo direct division without mitosis. It controls the non-reproductive cell functions, such as metabolism. During conjugation, the macronucleus disintegrates, and a new one is formed by karyogamy of th...
https://en.wikipedia.org/wiki/ICD-10%20Procedure%20Coding%20System
The ICD-10 Procedure Coding System (ICD-10-PCS) is a US system of medical classification used for procedural coding. The Centers for Medicare and Medicaid Services, the agency responsible for maintaining the inpatient procedure code set in the U.S., contracted with 3M Health Information Systems in 1995 to design and th...
https://en.wikipedia.org/wiki/Membranelle
Membranelles (also membranellae) are structures found around the mouth, or cytostome, in ciliates. They are typically arranged in series, to form an "adoral zone of membranelles", or AZM, on the left side of the buccal cavity (peristome). The membranelles are made up of kinetosomes arranged in groups to make up polykin...
https://en.wikipedia.org/wiki/Behrens%E2%80%93Fisher%20problem
In statistics, the Behrens–Fisher problem, named after Walter-Ulrich Behrens and Ronald Fisher, is the problem of interval estimation and hypothesis testing concerning the difference between the means of two normally distributed populations when the variances of the two populations are not assumed to be equal, based on...
https://en.wikipedia.org/wiki/Cyclic%20enzyme%20system
A cyclic enzyme system is a theoretical system of two enzymes sharing a single substrate or cofactor, also referred to as a biochemical switching device. It has been used as a biochemical implementation of a simple computational device, acting as a chemical diode. See also Biocomputer Computational gene References ...
https://en.wikipedia.org/wiki/Studentization
In statistics, Studentization, named after William Sealy Gosset, who wrote under the pseudonym Student, is the adjustment consisting of division of a first-degree statistic derived from a sample, by a sample-based estimate of a population standard deviation. The term is also used for the standardisation of a higher-de...
https://en.wikipedia.org/wiki/Suberic%20acid
Suberic acid, also octanedioic acid, is a dicarboxylic acid, with formula C8H14O4. It is a colorless crystalline solid used in drug syntheses and plastics manufacture. Its name is derived from the Latin word suber which means cork. References Dicarboxylic acids
https://en.wikipedia.org/wiki/Pressure%20gradient
In atmospheric science, the pressure gradient (typically of air but more generally of any fluid) is a physical quantity that describes in which direction and at what rate the pressure increases the most rapidly around a particular location. The pressure gradient is a dimensional quantity expressed in units of pascals p...
https://en.wikipedia.org/wiki/Truncation%20%28disambiguation%29
Truncation is the term used for limiting the number of digits right of the decimal point by discarding the least significant ones. Truncation may also refer to: Mathematics Truncation (statistics) refers to measurements which have been cut off at some value Truncation (numerical analysis) refers to truncating an in...
https://en.wikipedia.org/wiki/Picloram
Picloram is a systemic herbicide used for general woody plant control. It also controls a wide range of broad-leaved weeds, but most grasses are resistant. A chlorinated derivative of picolinic acid, picloram is in the pyridine family of herbicides. Picloram can be sprayed on foliage, injected into plants, applied to...
https://en.wikipedia.org/wiki/Computational%20finance
Computational finance is a branch of applied computer science that deals with problems of practical interest in finance. Some slightly different definitions are the study of data and algorithms currently used in finance and the mathematics of computer programs that realize financial models or systems. Computational fi...
https://en.wikipedia.org/wiki/James%20Edward%20Zimmerman
James Edward Zimmerman (February 19, 1923 – August 4, 1999) was born in Lantry, South Dakota. He was a coinventor of the radio-frequency superconducting quantum interference device (SQUID) and he is credited with coining the term. Career Westinghouse Research Laboratory, Pittsburgh Pennsylvania - 1943 – ?? Smithson...
https://en.wikipedia.org/wiki/Guy%20Boyd%20%28sculptor%29
Guy Martin à Beckett Boyd (12 June 1923 – 26 April 1988) was an Australian potter and figurative sculptor noted for his ability to represent sensuality in the female nude with fluid forms. He was also active in environmental and other causes, including protesting against the damming of the Franklin River and advocating...
https://en.wikipedia.org/wiki/Elater
An elater is a cell (or structure attached to a cell) that is hygroscopic, and therefore will change shape in response to changes in moisture in the environment. Elaters come in a variety of forms, but are always associated with plant spores. In many plants that do not have seeds, they function in dispersing the spores...
https://en.wikipedia.org/wiki/British%20NVC%20community%20H3
NVC community H3 (Ulex minor - Agrostis curtisii heath) is one of the heath communities in the British National Vegetation Classification system. It is one of three communities which are considered transitional between the lowland dry heaths and the wetter communities classified in the NVC as mires. It is a very local...
https://en.wikipedia.org/wiki/Calnexin
Calnexin (CNX) is a 67kDa integral protein (that appears variously as a 90kDa, 80kDa, or 75kDa band on western blotting depending on the source of the antibody) of the endoplasmic reticulum (ER). It consists of a large (50 kDa) N-terminal calcium-binding lumenal domain, a single transmembrane helix and a short (90 resi...
https://en.wikipedia.org/wiki/Sport%20compact
Sport compact is an American car classification for a high-performance version of an affordable compact car or a subcompact car. There is no precise definition and the description is applied for marketing purposes to a wide variety of models. Cars began to be marketed as sport compacts in the mid-1980s, when it was us...
https://en.wikipedia.org/wiki/British%20NVC%20community%20A9
The Potamogeton natans community (NVC community A9) is one of the aquatic communities in the British National Vegetation Classification system. It is a comparatively widely distributed community. There are three subcommunities. Community composition One constant species is found in this community, Broad-leaved Pond...
https://en.wikipedia.org/wiki/Crystal%20Springs%20Rhododendron%20Garden
Crystal Springs Rhododendron Garden is a botanical garden located between Reed College and the Eastmoreland Golf Course in southeastern Portland in the U.S. state of Oregon. Description and history The garden, located between Southeast 28th Avenue and Woodstock Boulevard, covers and is named for the numerous springs ...
https://en.wikipedia.org/wiki/Annapurna%20III
Annapurna III () is a mountain in the Annapurna mountain range located in Nepal, and at tall, it is the 42nd highest mountain in the world and the third highest peak of the Annapurna mountain range (Annapurna Fang is technically taller at , but lacks the prominence to be considered a fully independent peak). History ...
https://en.wikipedia.org/wiki/Annapurna%20IV
Annapurna IV () is a mountain of the Annapurna mountain range in the Himalayas which is located in Nepal. Along with the taller Annapurna II, it is isolated from the other peaks in the range via a major col. It is the 4th highest peak of the range. It was first climbed in 1955 by a German expedition led by Heinz Steinm...
https://en.wikipedia.org/wiki/Annapurna%20South
Annapurna South () is a mountain in the Annapurna Himal range of the Himalayas located in Nepal, and the 101st-highest mountain in the world. It is the 5th highest peak of the Annapurna mountain range. It was first ascended in 1964, and is tall. The nearby mountain Hiunchuli is in fact an extension of Annapurna South....
https://en.wikipedia.org/wiki/Chinaman%27s%20chance
Chinaman's chance is an American idiom which means that a person has little or no chance at success, synonymous with similar idioms of improbability such as a snowball's chance in hell or when pigs fly. Although the origin of the phrase is unclear, it may refer to the historical misfortunes which were suffered by Chine...
https://en.wikipedia.org/wiki/Foldamer
In chemistry, a foldamer is a discrete chain molecule (oligomer) that folds into a conformationally ordered state in solution. They are artificial molecules that mimic the ability of proteins, nucleic acids, and polysaccharides to fold into well-defined conformations, such as α-helices and β-sheets. The structure of a...
https://en.wikipedia.org/wiki/British%20NVC%20community%20OV5
British NVC community OV5 (Digitaria ischaemum - Erodium cicutarium community) is an open habitat community in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils. It is a very localised community. There are no subcommunities...
https://en.wikipedia.org/wiki/Majorana%20equation
In physics, the Majorana equation is a relativistic wave equation. It is named after the Italian physicist Ettore Majorana, who proposed it in 1937 as a means of describing fermions that are their own antiparticle. Particles corresponding to this equation are termed Majorana particles, although that term now has a more...
https://en.wikipedia.org/wiki/Akbar%20Abdi
Akbar Abdi (, born 26 August 1960) is an Iranian actor. He has received various accolades, including two Crystal Simorgh, a Hafez Award and an Iran's Film Critics and Writers Association Award. Career He began his career in 1981 with the children's TV series “The Traffic Neighborhood”, directed by Dariush Moadebian. ...
https://en.wikipedia.org/wiki/British%20NVC%20community%20MG12
British NVC community MG12 (Festuca arundinacea grassland) is one of the mesotrophic grassland communities in the British National Vegetation Classification system. It is one of three types of mesotrophic grassland classified as grass-dominated inundation communities. It is a fairly localised coastal community. There ...
https://en.wikipedia.org/wiki/AAAP
"aaap" or "AAAP" may refer to: Amateur Astronomers Association of Pittsburgh Amino Acid/Auxin Permease (AAAP) Family, family of secondary transport proteins American Academy of Addiction Psychiatry American Association of Applied Psychologists Asociación de Atletismo del Alto Paraná Association for the Advancemen...
https://en.wikipedia.org/wiki/Purcell%20School%20for%20Young%20Musicians
The Purcell School for Young Musicians is a specialist music school for children, located in the town of Bushey, south Hertfordshire, England, and is the oldest specialist music school in the UK. The school was awarded the UNESCO Mozart Medal in 2003, which was received on behalf of the school by King Charles, who is ...
https://en.wikipedia.org/wiki/Sodium%20sulfide
Sodium sulfide is a chemical compound with the formula Na2S, or more commonly its hydrate Na2S·9H2O. Both the anhydrous and the hydrated salts in pure crystalline form are colorless solids, although technical grades of sodium sulfide are generally yellow to brick red owing to the presence of polysulfides and commonly s...
https://en.wikipedia.org/wiki/Rabbitfish
Rabbitfishes or spinefoots are perciform fishes in the family Siganidae. The 29 species are in a single genus, Siganus. In some now obsolete classifications, the species having prominent face stripes—colloquially called foxfaces–are in the genus Lo. Other species, such as the masked spinefoot (S. puellus), show a reduc...
https://en.wikipedia.org/wiki/CCP4
CCP4 can refer to any one of the following: Collaborative Computational Project Number 4 — comprehensive collection of protein crystallography software CCP4 (file format) — An electron density file format used in molecular graphics Port Hope Simpson Airport — ICAO Canadian airport code: CCP4
https://en.wikipedia.org/wiki/Karnataka%20Brahmin
Karnataka Brahmins or Carnatic Brahmins are Pancha Dravida Brahmin native to the Indian state of Karnataka. Classification Karnataka Brahmins fall under the Pancha Dravida Brahmin classification of the Brahmin community. Karnataka Brahmins are divided into three major sub-divisions, Smarta, Madhva, Sri Vaishnava, ...
https://en.wikipedia.org/wiki/Tonic%20Trouble
Tonic Trouble is a 1999 action-adventure game developed by Ubi Soft Montreal and published by Ubi Soft. The game follows janitor Ed, who drops a container of unidentified fluid from his spaceship to Earth, transforming the planet into a mutated version of itself. Drunkard Grögh drinks from the container and is granted ...
https://en.wikipedia.org/wiki/Neuronal%20tuning
Neuronal tuning refers to the hypothesized property of brain cells by which they selectively represent a particular type of sensory, association, motor, or cognitive information. Some neuronal responses have been hypothesized to be optimally tuned to specific patterns through experience. Neuronal tuning can be strong a...
https://en.wikipedia.org/wiki/C5-convertase
C5 convertase is an enzyme belonging to a family of serine proteases that play key role in the innate immunity. It participates in the complement system ending with cell death. There are four different C5 convertases able to specifically convert the protein C5 to C5a and C5b fragments. Two of the convertases are phys...
https://en.wikipedia.org/wiki/List%20of%20numerical%20computational%20geometry%20topics
List of numerical computational geometry topics enumerates the topics of computational geometry that deals with geometric objects as continuous entities and applies methods and algorithms of nature characteristic to numerical analysis. This area is also called "machine geometry", computer-aided geometric design, and ge...
https://en.wikipedia.org/wiki/Bobby%20Tambling
Robert Victor Tambling (born 18 September 1941) is an English former professional footballer, who played as a forward, most notably for Chelsea, Crystal Palace and England. He was Chelsea's all-time top scorer for 47 years, with 202 goals in all competitions until Frank Lampard surpassed this total on 11 May 2013. Tamb...
https://en.wikipedia.org/wiki/Busulfan
Busulfan (Myleran, GlaxoSmithKline, Busulfex IV, Otsuka America Pharmaceutical, Inc.) is a chemotherapy drug in use since 1959. It is a cell cycle non-specific alkylating antineoplastic agent, in the class of alkyl sulfonates. Its chemical designation is 1,4-butanediol dimethanesulfonate. History Busulfan was approved...
https://en.wikipedia.org/wiki/British%20NVC%20community%20U6
NVC community U6 (Juncus squarrosus - Festuca ovina grassland) is one of the calcifugous grassland communities in the British National Vegetation Classification system. It is a comparatively localised community. There are four subcommunities. Community composition The following constant species are found in this co...
https://en.wikipedia.org/wiki/Sipser%E2%80%93Lautemann%20theorem
In computational complexity theory, the Sipser–Lautemann theorem or Sipser–Gács–Lautemann theorem states that bounded-error probabilistic polynomial (BPP) time is contained in the polynomial time hierarchy, and more specifically Σ2 ∩ Π2. In 1983, Michael Sipser showed that BPP is contained in the polynomial time hiera...
https://en.wikipedia.org/wiki/David%20Salsburg
David S. Salsburg (born 1931) is an author. His 2002 book The Lady Tasting Tea, subtitled How Statistics Revolutionized Science in the Twentieth Century, provides a layman's overview of important developments in the field of statistics in the late 19th and early 20th century, particularly in the areas of experiment des...
https://en.wikipedia.org/wiki/Monopolin
Monopolin is a protein complex that in budding yeast is composed of the four proteins CSM1, HRR25, LRS4, and MAM1. Monopolin is required for the segregation of homologous centromeres to opposite poles of a dividing cell during anaphase I of meiosis. This occurs by bridging DSN1 kinetochore proteins to sister kinetochor...
https://en.wikipedia.org/wiki/Separatrix%20%28mathematics%29
In mathematics, a separatrix is the boundary separating two modes of behaviour in a differential equation. Example: simple pendulum Consider the differential equation describing the motion of a simple pendulum: where denotes the length of the pendulum, the gravitational acceleration and the angle between the pend...
https://en.wikipedia.org/wiki/The%20Lady%20Tasting%20Tea
The Lady Tasting Tea: How Statistics Revolutionized Science in the Twentieth Century () is a book by David Salsburg about the history of modern statistics and the role it played in the development of science and industry. The title comes from the "lady tasting tea", an example from the famous book, The Design of Exper...
https://en.wikipedia.org/wiki/Bersa%20Thunder%209
The Thunder 9 is a full-size semi-automatic handgun manufactured by Bersa at the Ramos Mejia production plant in Argentina. It is also sold under the name Firestorm or FS 9. Derivatives in other calibres include the Thunder 40 and Thunder 45. Development History This handgun is an evolution of the Model 90, the first...
https://en.wikipedia.org/wiki/RF%20antenna%20ion%20source
An RF antenna ion source (or radio frequency antenna ion source) is an internal multi-cusp design that can produce a particle beam of about ~30 to 40 mA current. It is used in high energy particle physics and in accelerator laboratories. Previous RF antennas would penetrate the porcelain enamel coating on the antenna ...
https://en.wikipedia.org/wiki/Electromagnetic%20wave%20equation
The electromagnetic wave equation is a second-order partial differential equation that describes the propagation of electromagnetic waves through a medium or in a vacuum. It is a three-dimensional form of the wave equation. The homogeneous form of the equation, written in terms of either the electric field or the mag...
https://en.wikipedia.org/wiki/Hydraulic%20brake
A hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing glycol ethers or diethylene glycol, to transfer pressure from the controlling mechanism to the braking mechanism. History During 1904, Frederick George Heath (Heath Hydraulic Brake Co., Ltd.), Redditch, England devise...
https://en.wikipedia.org/wiki/Hox%20gene
Hox genes, a subset of homeobox genes, are a group of related genes that specify regions of the body plan of an embryo along the head-tail axis of animals. Hox proteins encode and specify the characteristics of 'position', ensuring that the correct structures form in the correct places of the body. For example, Hox gen...
https://en.wikipedia.org/wiki/Castej%C3%B3n%2C%20Navarre
Castejón is a town and municipality located in the province and autonomous community of Navarre, northern Spain. Castejón is home to Spain's largest photovoltaic power plant (2.44 MWp), which opened in 2006. References External links Castejón in the Bernardo Estornés Lasa - Auñamendi Encyclopedia (Euskomedia Fund...
https://en.wikipedia.org/wiki/CDX4
CDX4 may refer to: CDX4 (gene), a human gene that encodes a homeobox protein Fancy Lake Water Aerodrome, an abandoned airport
https://en.wikipedia.org/wiki/Closed-cell%20PVC%20foamboard
Closed-cell PVC foamboard is a lightweight rigid material used primarily in the manufacture of signs and displays. It is considered robust for outdoor use, being immune to rain and resistant to wind and sunlight. History In 1912, the first patents for polyvinyl chloride (PVC) were founded in Britain and Germany. It wa...
https://en.wikipedia.org/wiki/Ecgonine
Ecgonine (tropane derivative) is a tropane alkaloid found naturally in coca leaves. It has a close structural relation to cocaine: it is both a metabolite and a precursor, and as such, it is a controlled substance in many jurisdictions, as are some substances which can be used as precursors to ecgonine itself. Struct...
https://en.wikipedia.org/wiki/Levulinic%20acid
Levulinic acid, or 4-oxopentanoic acid, is an organic compound with the formula CH3C(O)CH2CH2CO2H. It is classified as a keto acid. This white crystalline solid is soluble in water and polar organic solvents. It is derived from degradation of cellulose and is a potential precursor to biofuels, such as ethyl levulinate....
https://en.wikipedia.org/wiki/Etch%20pit%20density
The etch pit density (EPD) is a measure for the quality of semiconductor wafers. Etching An etch solution is applied on the surface of the wafer where the etch rate is increased at dislocations of the crystal resulting in pits. For GaAs one uses typically molten KOH at 450 degrees Celsius for about 40 minutes in a zir...
https://en.wikipedia.org/wiki/Bitter%20Melon%20Farm
Bitter Melon Farm is the second in a three-part series of compilations by the Mountain Goats, released in 1999 by Ajax Records. It is preceded by Protein Source of the Future...Now!, and followed by Ghana. Track listing Personnel John Darnielle – vocals, guitar Rachel Ware – vocals, bass References The Mountain G...
https://en.wikipedia.org/wiki/Flygbussarna
Flygbussarna provide an airport bus service between many airports in and cities in Sweden. They are operated by FAC Flygbussarna Airport Coaches AB. Airports and cities served FAC Flygbussarna Airport Coaches provides bus transfer to and from eight airports and two harbours in Sweden. However, unlike many coach compan...
https://en.wikipedia.org/wiki/Avidin
Avidin is a tetrameric biotin-binding protein produced in the oviducts of birds, reptiles and amphibians and deposited in the whites of their eggs. Dimeric members of the avidin family are also found in some bacteria. In chicken egg white, avidin makes up approximately 0.05% of total protein (approximately 1800 μg per ...
https://en.wikipedia.org/wiki/Benedict%E2%80%93Webb%E2%80%93Rubin%20equation
The Benedict–Webb–Rubin equation (BWR), named after Manson Benedict, G. B. Webb, and L. C. Rubin, is an equation of state used in fluid dynamics. Working at the research laboratory of the M. W. Kellogg Company, the three researchers rearranged the Beattie–Bridgeman equation of state and increased the number of experime...
https://en.wikipedia.org/wiki/Crawler%20%28BEAM%29
In BEAM robotics, a crawler is a robot that has a mode of locomotion by tracks or by transferring the robot's body on limbs or appendages. These do not drag parts of their body on the ground. In the original paper "living machines" from 1995, two types of robots were introduced which was the Walkman (a simple crawler)...
https://en.wikipedia.org/wiki/Stress%20tensor
Stress tensor may refer to: Cauchy stress tensor, in classical physics Stress deviator tensor, in classical physics Piola–Kirchhoff stress tensor, in continuum mechanics Viscous stress tensor, in continuum mechanics Stress–energy tensor, in relativistic theories Maxwell stress tensor, in electromagnetism Electr...
https://en.wikipedia.org/wiki/Term%20indexing
In computer science, a term index is a data structure to facilitate fast lookup of terms and clauses in a logic program, deductive database, or automated theorem prover. Overview Many operations in automatic theorem provers require search in huge collections of terms and clauses. Such operations typically fall into t...
https://en.wikipedia.org/wiki/Epithelial%E2%80%93mesenchymal%20transition
The epithelial–mesenchymal transition (EMT) is a process by which epithelial cells lose their cell polarity and cell–cell adhesion, and gain migratory and invasive properties to become mesenchymal stem cells; these are multipotent stromal cells that can differentiate into a variety of cell types. EMT is essential for n...
https://en.wikipedia.org/wiki/British%20NVC%20community%20SD18
NVC community SD18 (Hippophae rhamnoides dune scrub) is one of the 16 sand-dune communities in the British National Vegetation Classification system. It is the only community characterised in the NVC as "dune scrub". It is a widely distributed coastal community. There are two subcommunities. Community composition T...
https://en.wikipedia.org/wiki/Peripheral%20blood%20mononuclear%20cell
A peripheral blood mononuclear cell (PBMC) is any peripheral blood cell having a round nucleus. These cells consist of lymphocytes (T cells, B cells, NK cells) and monocytes, whereas erythrocytes and platelets have no nuclei, and granulocytes (neutrophils, basophils, and eosinophils) have multi-lobed nuclei. In humans,...
https://en.wikipedia.org/wiki/Pendulum-and-hydrostat%20control
Pendulum-and-hydrostat control is a control mechanism developed originally for depth control of the Whitehead torpedo. It is an early example of what is now known as proportional and derivative control. The hydrostat is a mechanism that senses pressure; the torpedo's depth is proportional to pressure. However, with on...
https://en.wikipedia.org/wiki/Xubuntu
Xubuntu () is a Canonical Ltd.–recognized, community-maintained derivative of the Ubuntu operating system. The name Xubuntu is a portmanteau of Xfce and Ubuntu, as it uses the Xfce desktop environment, instead of Ubuntu's customized GNOME desktop. Xubuntu seeks to provide "a light, stable and configurable desktop envi...
https://en.wikipedia.org/wiki/Standard%20test%20image
A standard test image is a digital image file used across different institutions to test image processing and image compression algorithms. By using the same standard test images, different labs are able to compare results, both visually and quantitatively. The images are in many cases chosen to represent natural or ...
https://en.wikipedia.org/wiki/Light-harvesting%20complexes%20of%20green%20plants
The light-harvesting complex (or antenna complex; LH or LHC) is an array of protein and chlorophyll molecules embedded in the thylakoid membrane of plants and cyanobacteria, which transfer light energy to one chlorophyll a molecule at the reaction center of a photosystem. The antenna pigments are predominantly chlorop...
https://en.wikipedia.org/wiki/Singapore%20Cord%20Blood%20Bank
The Singapore Cord Blood Bank (Abbreviation: SCBB) is Singapore's only public cord blood bank that collects, processes and stores donated umbilical cord blood for use in stem cell transplants. Its cord blood units may be searched for use by qualifying transplant centers around the world. Public Cord Blood Banking As ...
https://en.wikipedia.org/wiki/Electronic%20symbol
An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may vary from country to c...
https://en.wikipedia.org/wiki/Dihydroergotamine
Dihydroergotamine (DHE), sold under the brand names D.H.E. 45 and Migranal among others, is an ergot alkaloid used to treat migraines. It is a derivative of ergotamine. It is administered as a nasal spray or injection and has an efficacy similar to that of sumatriptan. Nausea is a common side effect. It has similar ac...
https://en.wikipedia.org/wiki/Wild%20Orchid%20%28film%29
Wild Orchid is a 1989 American erotic film directed by Zalman King and starring Mickey Rourke, Carré Otis, Jacqueline Bisset, Bruce Greenwood, and Assumpta Serna. A sequel, Wild Orchid II: Two Shades of Blue, was released in 1991. Plot Emily Reed travels to New York City to interview with a law firm, which offers he...
https://en.wikipedia.org/wiki/Chevalley%E2%80%93Warning%20theorem
In number theory, the Chevalley–Warning theorem implies that certain polynomial equations in sufficiently many variables over a finite field have solutions. It was proved by and a slightly weaker form of the theorem, known as Chevalley's theorem, was proved by . Chevalley's theorem implied Artin's and Dickson's conje...
https://en.wikipedia.org/wiki/Cognitive%20robotics
Cognitive Robotics or Cognitive Technology is a subfield of robotics concerned with endowing a robot with intelligent behavior by providing it with a processing architecture that will allow it to learn and reason about how to behave in response to complex goals in a complex world. Cognitive robotics may be considered ...
https://en.wikipedia.org/wiki/William%20Sharp%20Macleay
William Sharp Macleay or McLeay (21 July 1792 – 26 January 1865) was a British civil servant and entomologist. He was a prominent promoter of the Quinarian system of classification. After graduating, he worked for the British embassy in Paris, following his interest in natural history at the same time, publishing essa...
https://en.wikipedia.org/wiki/Coding%20efficiency
Coding efficiency may refer to: In computing Data compression efficiency Algorithmic efficiency In biology Efficient coding hypothesis See also Efficiency (disambiguation) Coding (disambiguation)
https://en.wikipedia.org/wiki/Prestin
Prestin is a protein that is critical to sensitive hearing in mammals. It is encoded by the SLC26A5 (solute carrier anion transporter family 26, member 5) gene. Prestin is the motor protein of the outer hair cells of the inner ear of the mammalian cochlea. It is highly expressed in the outer hair cells, and is not ex...