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https://en.wikipedia.org/wiki/Signal%20trace | In electronics, a signal trace or circuit trace on a printed circuit board (PCB) or integrated circuit (IC) is the equivalent of a wire for conducting signals. Each trace consists of a flat, narrow part of the copper foil that remains after etching. Signal traces are usually narrower than power or ground traces because... |
https://en.wikipedia.org/wiki/Marpolia | Marpolia has been interpreted as a cyanobacterium, but also resembles the modern cladophoran green algae. It is known from the Middle Cambrian Burgess shale and Early Cambrian deposits from the Czech Republic. It comprises a dense mass of entangled, twisted filaments. It may have been free-floating or grown on other... |
https://en.wikipedia.org/wiki/Batman/Aliens | Batman/Aliens is a crossover between the Batman and Aliens comic book franchises. It was published in 1997. A sequel was released in 2003.
Batman/Aliens
Batman parachutes into the jungle near the Guatemala and Mexico borderline, investigating the disappearance of a Wayne Enterprises geologist. He encounters an Americ... |
https://en.wikipedia.org/wiki/Cornish%20ice%20cream | Cornish ice cream is a form of ice cream first made in Cornwall, England. It is made with Cornish clotted cream, and may be made with sorbet. Today, it is still produced using milk from many farms in Cornwall, although Cornish ice cream (and brands of Cornish ice cream) are sold in supermarkets all over the United King... |
https://en.wikipedia.org/wiki/S-layer | An S-layer (surface layer) is a part of the cell envelope found in almost all archaea, as well as in many types of bacteria.
The S-layers of both archaea and bacteria consists of a monomolecular layer composed of only one (or, in a few cases, two) identical proteins or glycoproteins. This structure is built via self-as... |
https://en.wikipedia.org/wiki/Vietnam%20War%20Song%20Project | The Vietnam War Song Project (VWSP) is an archive and interpretive examination of over 6000 Vietnam War songs identified. It was founded in 2007 by its current editor, Justin Brummer, a historian with a PhD in contemporary Anglo-American relations from University College London. The project analyses the lyrics, and col... |
https://en.wikipedia.org/wiki/Blind%20wine%20tasting | Blinded wine tasting is wine tasting undertaken in circumstances in which the tasters are kept unaware of the wines' identities. The blind approach is routine for wine professionals (wine tasters, sommeliers and others) who wish to ensure impartiality in the judgment of the quality of wine during wine competitions or i... |
https://en.wikipedia.org/wiki/Data%20Base%20Task%20Group | The Data Base Task Group (DBTG) was a working group founded in 1965 (initially named the List Processing Task Force and later renamed to DBTG in 1967) by the Cobol Committee, formerly Programming Language Committee, of the Conference of Data Systems Language (CODASYL). The DBTG was chaired by William Olle of RCA.
In A... |
https://en.wikipedia.org/wiki/Bigoni%E2%80%93Piccolroaz%20yield%20criterion | The Bigoni–Piccolroaz yield criterion is a yielding model, based on a phenomenological approach, capable of describing the mechanical behavior of a broad class of pressure-sensitive granular materials such as soil, concrete, porous metals and ceramics.
General concepts
The idea behind the Bigoni-Piccolroaz criterion ... |
https://en.wikipedia.org/wiki/Slugging%20percentage | In baseball statistics, slugging percentage (SLG) is a measure of the batting productivity of a hitter. It is calculated as total bases divided by at-bats, through the following formula, where AB is the number of at-bats for a given player, and 1B, 2B, 3B, and HR are the number of singles, doubles, triples, and home ru... |
https://en.wikipedia.org/wiki/Cit%C3%A9%20du%20Vin | The Cité du Vin is a museum as well as a place of exhibitions, shows, movie projections and academic seminars on the theme of wine located in Bordeaux, France.
On August 29, 2018, the Cité du Vin passed the milestone of one million visitors since its opening and in May 2022 that of 2 million visitors.
Construction
A... |
https://en.wikipedia.org/wiki/North%20American%20Numbering%20Council | The North American Numbering Council is an advisory committee of the Federal Communications Commission (FCC) of the United States, chartered in 1995. Its function is to develop and recommend efficient and fair administrative procedures in the administration of the North American Numbering Plan (NANP), including telepho... |
https://en.wikipedia.org/wiki/Why%20We%20Sleep | Why We Sleep: The New Science of Sleep and Dreams (or simply known as Why We Sleep) is a 2017 popular science book about sleep written by Matthew Walker, an English scientist and the director of the Center for Human Sleep Science at the University of California, Berkeley, who specializes in neuroscience and psychology.... |
https://en.wikipedia.org/wiki/List%20of%20quantum%20logic%20gates | In gate-based quantum computing, various sets of quantum logic gates are commonly used to express quantum operations. The following tables list several unitary quantum logic gates, together with their common name, how they are represented, and some of their properties. Controlled or conjugate transpose (adjoint) versio... |
https://en.wikipedia.org/wiki/Accuracy%20and%20precision | Accuracy and precision are two measures of observational error.
Accuracy is how close a given set of measurements (observations or readings) are to their true value, while precision is how close the measurements are to each other.
In other words, precision is a description of random errors, a measure of statistical va... |
https://en.wikipedia.org/wiki/Direct-attached%20storage | Direct-attached storage (DAS) is digital storage directly attached to the computer accessing it, as opposed to storage accessed over a computer network (i.e. network-attached storage). DAS consists of one or more storage units such as hard drives, solid-state drives, optical disc drives within an external enclosure. Th... |
https://en.wikipedia.org/wiki/Fitness%20%28biology%29 | Fitness (often denoted or ω in population genetics models) is the quantitative representation of individual reproductive success. It is also equal to the average contribution to the gene pool of the next generation, made by the same individuals of the specified genotype or phenotype. Fitness can be defined either with... |
https://en.wikipedia.org/wiki/List%20of%20botanists%20by%20author%20abbreviation%20%28C%29 |
A–B
To find entries for A–B, use the table of contents above.
C
C.A.Arnold – Chester Arthur Arnold (1901–1977)
Cabactulan – Derek Cabactulan (fl. 2016)
Cabanès – Jean Gustave Cabanès (1864–1944)
C.A.Barber – Charles Alfred Barber (1860–1933)
C.Abbot – Charles Abbot (1761–1817)
C.Abel – Clarke Abel (1789–18... |
https://en.wikipedia.org/wiki/Current%20differencing%20transconductance%20amplifier | Current differencing transconductance amplifier (CDTA) is a new active circuit element.
Properties
The CDTA is not free from parasitic input capacitances and it can operate in a wide frequency range due to current-mode operation. Some voltage and current mode applications using this element have already been reported ... |
https://en.wikipedia.org/wiki/Ion%20Barbu | Ion Barbu (, pen name of Dan Barbilian; 18 March 1895 –11 August 1961) was a Romanian mathematician and poet. His name is associated with the Mathematics Subject Classification number 51C05, which is a major posthumous recognition reserved only to pioneers of investigations in an area of mathematical inquiry.
Early li... |
https://en.wikipedia.org/wiki/Prokhorov%27s%20theorem | In measure theory Prokhorov's theorem relates tightness of measures to relative compactness (and hence weak convergence) in the space of probability measures. It is credited to the Soviet mathematician Yuri Vasilyevich Prokhorov, who considered probability measures on complete separable metric spaces. The term "Prokhor... |
https://en.wikipedia.org/wiki/Mobile%20computer-supported%20collaborative%20learning | Mobile computer-supported collaborative learning may have different meanings depending on the context in which it is applied. Mobile CSCL includes any in-class and out-of-class use of handheld mobile devices such as cell phones, smart phones, and personal digital assistants (PDAs) to enable collaborative learning.
Ov... |
https://en.wikipedia.org/wiki/Laser-heated%20pedestal%20growth | Laser-heated pedestal growth (LHPG) or laser floating zone (LFZ) is a crystal growth technique. A narrow region of a crystal is melted with a powerful CO2 or YAG laser. The laser and hence the floating zone, is moved along the crystal. The molten region melts impure solid at its forward edge and leaves a wake of purer ... |
https://en.wikipedia.org/wiki/Metachronal%20rhythm | A metachronal rhythm or metachronal wave refers to wavy movements produced by the sequential action (as opposed to synchronized) of structures such as cilia, segments of worms, or legs. These movements produce the appearance of a travelling wave.
A Mexican wave is a large scale example of a metachronal wave. This pat... |
https://en.wikipedia.org/wiki/FEZ-like%20protein | In molecular biology, the FEZ-like protein family is a family of eukaryotic proteins thought to be involved in axonal outgrowth and fasciculation. The N-terminal regions of these sequences are less conserved than the C-terminal regions, and are highly acidic. The Caenorhabditis elegans homologue, UNC-76, may play struc... |
https://en.wikipedia.org/wiki/Geodat | Geodat was a commercial project, begun in 1980 and completed by 1991, that provided digital geographic mapping data for commercial users at scales equal to or greater than 1:1,000,000. The term "Geodat" was derived from "GEOgraphic DATa". Geodat data was primarily "medium scale", a nominal 1:100,000, but ranged from 1... |
https://en.wikipedia.org/wiki/Principal%20Triangulation%20of%20Great%20Britain | The Principal Triangulation of Britain was the first high-precision triangulation survey of the whole of Great Britain and Ireland, carried out between 1791 and 1853 under the auspices of the Board of Ordnance. The aim of the survey was to establish precise geographical coordinates of almost 300 significant landmarks w... |
https://en.wikipedia.org/wiki/Alonzo%20Church | Alonzo Church (June 14, 1903 – August 11, 1995) was an American mathematician, computer scientist, logician, and philosopher who made major contributions to mathematical logic and the foundations of theoretical computer science. He is best known for the lambda calculus, the Church–Turing thesis, proving the unsolvabili... |
https://en.wikipedia.org/wiki/Boundary%20vector%20field | The boundary vector field (BVF) is an external force for parametric active contours (i.e. Snakes). In the fields of computer vision and image processing, parametric active contours are widely used for segmentation and object extraction. The active contours move progressively towards its target based on the external for... |
https://en.wikipedia.org/wiki/Cambium | A cambium (plural cambia or cambiums), in plants, is a tissue layer that provides partially undifferentiated cells for plant growth. It is found in the area between xylem and phloem. A cambium can also be defined as a cellular plant tissue from which phloem, xylem, or cork grows by division, resulting (in woody plants)... |
https://en.wikipedia.org/wiki/IEEE/ACM%20Transactions%20on%20Computational%20Biology%20and%20Bioinformatics | IEEE/ACM Transactions on Computational Biology and Bioinformatics (abbreviated TCBB) is a bimonthly peer-reviewed scientific journal. It is a joint publication of the IEEE Computer Society, Association for Computing Machinery (ACM), IEEE Computational Intelligence Society (CIS), and the IEEE Engineering in Medicine and... |
https://en.wikipedia.org/wiki/Chameleon%20ranching | Chameleon ranching is the action of releasing chameleons into an area with the intent of establishing them and later collecting them to sell for a profit. This type of ranching has existed since the 1970s, but has become more widespread around the early 2000s. It is an example of people intentionally releasing a foreig... |
https://en.wikipedia.org/wiki/Listeriolysin%20O | Listeriolysin O (LLO) is a hemolysin produced by the bacterium Listeria monocytogenes, the pathogen responsible for causing listeriosis. The toxin may be considered a virulence factor, since it is crucial for the virulence of L. monocytogenes.
Biochemistry
Listeriolysin O is a non-enzymatic, cytolytic, thiol-activated... |
https://en.wikipedia.org/wiki/37%20%28number%29 | 37 (thirty-seven) is the natural number following 36 and preceding 38.
In mathematics
37 is the 12th prime number, and the 3rd isolated prime without a twin prime.
37 is the first irregular prime.
The sum of the squares of the first 37 primes is divisible by 37.
Every positive integer is the sum of at most 37 fifth ... |
https://en.wikipedia.org/wiki/Uterovaginal%20plexus%20%28nerves%29 | The Uterovaginal plexus is a division of the inferior hypogastric plexus. In older texts, it is referred to as two structures, the "vaginal plexus" and "uterine plexus".
The Vaginal Plexus arises from the lower part of the pelvic plexus. It is distributed to the walls of the vagina, to the erectile tissue of the vesti... |
https://en.wikipedia.org/wiki/Stratification%20%28vegetation%29 | Stratification in the field of ecology refers to the vertical layering of a habitat; the arrangement of vegetation in layers. It classifies the layers (sing. stratum, pl. strata) of vegetation largely according to the different heights to which their plants grow. The individual layers are inhabited by different animal ... |
https://en.wikipedia.org/wiki/Integral%20probability%20metric | In probability theory, integral probability metrics are types of distance functions between probability distributions, defined by how well a class of functions can distinguish the two distributions. Many important statistical distances are integral probability metrics, including the Wasserstein-1 distance and the total... |
https://en.wikipedia.org/wiki/Perspective-taking | Perspective-taking is the act of perceiving a situation or understanding a concept from an alternative point of view, such as that of another individual.
A vast amount of scientific literature suggests that perspective-taking is crucial to human development and that it may lead to a variety of beneficial outcomes. Per... |
https://en.wikipedia.org/wiki/Xfire | Xfire was a proprietary freeware instant messaging service for gamers that also served as a game server browser with various other features. It was available for Microsoft Windows.
Xfire was originally developed by Ultimate Arena based in Menlo Park, California. On January 3, 2014, it had over 24 million registered us... |
https://en.wikipedia.org/wiki/Theoretical%20motivation%20for%20general%20relativity | A theoretical motivation for general relativity, including the motivation for the geodesic equation and the Einstein field equation, can be obtained from special relativity by examining the dynamics of particles in circular orbits about the Earth. A key advantage in examining circular orbits is that it is possible to k... |
https://en.wikipedia.org/wiki/Extinction%20cross | The extinction cross is an optical phenomenon that is seen when trying to extinguish a laser beam or non-planar white light using crossed polarizers. Ideally, crossed (90° rotated) polarizers block all light, since light which is polarized along the polarization axis of the first polarizer is perpendicular to the polar... |
https://en.wikipedia.org/wiki/Parsons%20code | The Parsons code, formally named the Parsons code for melodic contours, is a simple notation used to identify a piece of music through melodic motion – movements of the pitch up and down. Denys Parsons developed this system for his 1975 book The Directory of Tunes and Musical Themes. Representing a melody in this manne... |
https://en.wikipedia.org/wiki/Maurandya%20scandens | Maurandya scandens, also known as trailing snapdragon and snapdragon vine, is a climbing herbaceous perennial native to Mexico, with snapdragon-like flowers and untoothed leaves. It is grown as an ornamental plant in many parts of the world, and has commonly escaped from cultivation to become naturalized. Other names f... |
https://en.wikipedia.org/wiki/International%20Plant%20Protection%20Convention | The International Plant Protection Convention (IPPC) is a 1951 multilateral treaty overseen by the United Nations Food and Agriculture Organization that aims to secure coordinated, effective action to prevent and to control the introduction and spread of pests of plants and plant products. The Convention extends beyond... |
https://en.wikipedia.org/wiki/Z%C3%A9%20Povinho | Zé Povinho is the cartoon character of a Portuguese everyman created in 1875 by Rafael Bordalo Pinheiro. He became first a symbol of the Portuguese working-class people, and eventually into the unofficial personification of Portugal.
Gallery |
https://en.wikipedia.org/wiki/Cognitive%20ethology | Cognitive ethology is a branch of ethology concerned with the influence of conscious awareness and intention on the behaviour of an animal. Donald Griffin, a zoology professor in the United States, set up the foundations for researches in the cognitive awareness of animals within their habitats.
The fusion of cognitiv... |
https://en.wikipedia.org/wiki/National%20Animal%20Resource%20Facility%20for%20Biomedical%20Research | The National Animal Resource Facility for Biomedical Research is an Indian Biomedical research facility, and vivarium under the Indian Council of Medical Research. The new 33rd flagship institute of ICMR was founded in 2015, at Genome Valley in Hyderabad, India. The center is a state of the art Animal house and Animal ... |
https://en.wikipedia.org/wiki/Bi-directional%20hypothesis%20of%20language%20and%20action | The bi-directional hypothesis of language and action proposes that the sensorimotor and language comprehension areas of the brain exert reciprocal influence over one another. This hypothesis argues that areas of the brain involved in movement and sensation, as well as movement itself, influence cognitive processes such... |
https://en.wikipedia.org/wiki/Washington%20Redskins%20name%20opinion%20polls | During the years of increasing awareness of the Washington Redskins name controversy, public opinion polls were part of the discussion about whether Native Americans found the term redskin insulting. Other polls gauged how the general public viewed the controversy.
Two national political polls, the first in 2004 and a... |
https://en.wikipedia.org/wiki/Caprazamycin | Caprazamycins are chemical compounds isolated from Streptomyces which have some antibiotic activity. |
https://en.wikipedia.org/wiki/Macrocnemus | Macrocnemus is an extinct genus of archosauromorph reptile known from the Middle Triassic (Late Anisian to Ladinian) of Europe and China. Macrocnemus is a member of the Tanystropheidae family and includes three species. Macrocnemus bassanii, the first species to be named and described, is known from the Besano Formatio... |
https://en.wikipedia.org/wiki/Destroying%20angel | The name destroying angel applies to several similar, closely related species of deadly all-white mushrooms in the genus Amanita. They are Amanita virosa in Europe and A. bisporigera and A. ocreata in eastern and western North America, respectively. Another European species of Amanita referred to as the destroying ang... |
https://en.wikipedia.org/wiki/Quiescent%20centre | The quiescent centre is a group of cells, up to 1,000 in number, in the form of a hemisphere, with the flat face toward the root tip of vascular plants. It is a region in the apical meristem of a root where cell division proceeds very slowly or not at all, but the cells are capable of resuming meristematic activity whe... |
https://en.wikipedia.org/wiki/Universality%20probability | Universality probability is an abstruse probability measure in computational complexity theory that concerns universal Turing machines.
Background
A Turing machine is a basic model of computation. Some Turing machines might be specific to doing particular calculations. For example, a Turing machine might take input... |
https://en.wikipedia.org/wiki/Feferman%E2%80%93Vaught%20theorem | Feferman–Vaught theorem in model theory is a theorem by Solomon Feferman and Robert Lawson Vaught that shows how to reduce, in an algorithmic way, the first-order theory of a product of first-order structures to the first-order theory of elements of the structure.
The theorem is considered as one of the standard resu... |
https://en.wikipedia.org/wiki/Low-temperature%20technology%20timeline | The following is a timeline of low-temperature technology and cryogenic technology (refrigeration down to close to absolute zero, i.e. –273.15 °C, –459.67 °F or 0 K). It also lists important milestones in thermometry, thermodynamics, statistical physics and calorimetry, that were crucial in development of low temperatu... |
https://en.wikipedia.org/wiki/MRC-5 | MRC-5 (Medical Research Council cell strain 5) is a diploid cell culture line composed of fibroblasts, originally developed from the lung tissue of a 14-week-old aborted Caucasian male fetus. The cell line was isolated by J.P. Jacobs and colleagues in September 1966 from the seventh population doubling of the original ... |
https://en.wikipedia.org/wiki/Harry%20Frederick%20Recher | Emeritus Professor Harry Frederick Recher RZS (NSW) AM (born 27 March 1938, New York City) is an Australian ecologist, ornithologist and advocate for conservation.
Recher grew up in the United States of America. He studied at the State University of New York College of Forestry and received his B.S. in 1959 from Syrac... |
https://en.wikipedia.org/wiki/Inversive%20geometry | In geometry, inversive geometry is the study of inversion, a transformation of the Euclidean plane that maps circles or lines to other circles or lines and that preserves the angles between crossing curves. Many difficult problems in geometry become much more tractable when an inversion is applied. Inversion seems to h... |
https://en.wikipedia.org/wiki/Consecutive%20case%20series | A consecutive case series is a clinical study that includes all eligible patients identified by the researchers during the study registration period. The patients are treated in the order in which they are identified. This type of study usually does not have a control group.
For example, in Sugrue, et al. (2016), a co... |
https://en.wikipedia.org/wiki/Grassmann%20graph | In graph theory, Grassmann graphs are a special class of simple graphs defined from systems of subspaces. The vertices of the Grassmann graph are the -dimensional subspaces of an -dimensional vector space over a finite field of order ; two vertices are adjacent when their intersection is -dimensional.
Many of the par... |
https://en.wikipedia.org/wiki/Lemniscate | In algebraic geometry, a lemniscate is any of several figure-eight or -shaped curves. The word comes from the Latin meaning "decorated with ribbons", from the Greek meaning "ribbon", or which alternatively may refer to the wool from which the ribbons were made.
Curves that have been called a lemniscate include three... |
https://en.wikipedia.org/wiki/List%20of%20comets%20with%20no%20meaningful%20orbit | This is a list of comets designated with X/ prefix. The majority of these comets were discovered before the invention of the telescope in 1610, and as such there was nobody to plot the positions of the comets to a high enough precision to generate any meaningful orbit. Later comets, observed in the 17th century or late... |
https://en.wikipedia.org/wiki/Sieved%20Jacobi%20polynomials | In mathematics, sieved Jacobi polynomials are a family of sieved orthogonal polynomials, introduced by . Their recurrence relations are a modified (or "sieved") version of the recurrence relations for Jacobi polynomials. |
https://en.wikipedia.org/wiki/Bleacher%20Creature%20%28mascot%29 | The Bleacher Creature was the official mascot for the Atlanta Braves Major League Baseball team during the late 1970s and early 1980s. It featured green shaggy fur with a Braves cap and logo on top. The word Braves was written across its chest in big red letters. It had a permanent toothless smile. The mascot usually r... |
https://en.wikipedia.org/wiki/Divergent%20geometric%20series | In mathematics, an infinite geometric series of the form
is divergent if and only if | r | ≥ 1. Methods for summation of divergent series are sometimes useful, and usually evaluate divergent geometric series to a sum that agrees with the formula for the convergent case
This is true of any summation method that posses... |
https://en.wikipedia.org/wiki/51st%20meridian%20west | The meridian 51° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, the Atlantic Ocean, South America, the Southern Ocean, and Antarctica to the South Pole.
The 51st meridian west forms a great circle with the 129th meridian east.
From Pole to Pole
Starting a... |
https://en.wikipedia.org/wiki/Branch%20and%20bound | Branch and bound (BB, B&B, or BnB) is a method for solving optimization problems by breaking them down into smaller sub-problems and using a bounding function to eliminate sub-problems that cannot contain the optimal solution. It is an algorithm design paradigm for discrete and combinatorial optimization problems, as... |
https://en.wikipedia.org/wiki/Dynamic%20timing%20verification | Dynamic timing verification refers to verifying that an ASIC design is fast enough to run without errors at the targeted clock rate. This is accomplished by simulating the design files used to synthesize the integrated circuit (IC) design. This is in contrast to static timing analysis, which has a similar goal as dyn... |
https://en.wikipedia.org/wiki/AMD%20Turbo%20Core | AMD Turbo Core a.k.a. AMD Core Performance Boost (CPB) is a dynamic frequency scaling technology implemented by AMD that allows the processor to dynamically adjust and control the processor operating frequency in certain versions of its processors which allows for increased performance when needed while maintaining low... |
https://en.wikipedia.org/wiki/Lusitropy | Lusitropy or Lucitropy is the rate of myocardial relaxation. The increase in cytosolic calcium of cardiomyocytes via increased uptake leads to increased myocardial contractility (positive inotropic effect), but the myocardial relaxation, or lusitropy, decreases. This should not be confused, however, with catecholamine... |
https://en.wikipedia.org/wiki/Enterprise%20bookmarking | Enterprise bookmarking is a method for Web 2.0 users to tag, organize, store, and search bookmarks of both web pages on the Internet and data resources stored in a distributed database or fileserver. This is done collectively and collaboratively in a process by which users add tag (metadata) and knowledge tags.
In ear... |
https://en.wikipedia.org/wiki/Han%20unification | Han unification is an effort by the authors of Unicode and the Universal Character Set to map multiple character sets of the Han characters of the so-called CJK languages into a single set of unified characters. Han characters are a feature shared in common by written Chinese (hanzi), Japanese (kanji), Korean (hanja) a... |
https://en.wikipedia.org/wiki/Bonferroni%20correction | In statistics, the Bonferroni correction is a method to counteract the multiple comparisons problem.
Background
The method is named for its use of the Bonferroni inequalities.
An extension of the method to confidence intervals was proposed by Olive Jean Dunn.
Statistical hypothesis testing is based on rejecting the n... |
https://en.wikipedia.org/wiki/Quotient%20of%20a%20formal%20language | In mathematics and computer science, the right quotient (or simply quotient) of a language with respect to language is the language consisting of strings w such that wx is in for some string x in Formally:
In other words, we take all the strings in that have a suffix in , and remove this suffix.
Similarly, the l... |
https://en.wikipedia.org/wiki/Ligand%20field%20theory | Ligand field theory (LFT) describes the bonding, orbital arrangement, and other characteristics of coordination complexes. It represents an application of molecular orbital theory to transition metal complexes. A transition metal ion has nine valence atomic orbitals - consisting of five nd, one (n+1)s, and three (n+1)p... |
https://en.wikipedia.org/wiki/Eastern%20forest%E2%80%93boreal%20transition | The eastern forest–boreal transition is a temperate broadleaf and mixed forests ecoregion of North America, mostly in eastern Canada. It is a transitional zone or region between the predominantly coniferous Boreal Forest and the mostly deciduous broadleaf forest region further south.
Location and climate
The ecoregio... |
https://en.wikipedia.org/wiki/Kavli%20Institute%20for%20Theoretical%20Physics | The Kavli Institute for Theoretical Physics (KITP) is a research institute of the University of California, Santa Barbara. KITP is one of the most renowned institutes for theoretical physics in the world, and brings theorists in physics and related fields together to work on topics at the forefront of theoretical scien... |
https://en.wikipedia.org/wiki/Strength%20of%20glass | Glass typically has a tensile strength of . However, the theoretical upper bound on its strength is orders of magnitude higher: . This high value is due to the strong chemical Si–O bonds of silicon dioxide. Imperfections of the glass, such as bubbles, and in particular surface flaws, such as scratches, have a great ef... |
https://en.wikipedia.org/wiki/Vegv%C3%ADsir | A (Icelandic for "wayfinder", ) is an Icelandic magical stave intended to help the bearer find their way through rough weather. The symbol is attested in the Huld Manuscript, collected in Iceland by Geir Vigfusson in Akureyri in 1860, and does not have any earlier attestations.
A leaf of the manuscript provides an im... |
https://en.wikipedia.org/wiki/Siffernotskrift | Siffernotskrift () or sifferskrift is a form of numbered musical notation in which numerals are given which correspond to musical notes on given instruments. The system was devised and used by Swedish clergyman, psalmist, and music educator Johan Dillner (1785-1862) in the hymnal he wrote 1830 for the psalmodicon - a ... |
https://en.wikipedia.org/wiki/Sacred%20Harp | Sacred Harp singing is a tradition of sacred choral music that originated in New England and was later perpetuated and carried on in the American South. The name is derived from The Sacred Harp, a ubiquitous and historically important tunebook printed in shape notes. The work was first published in 1844 and has reappea... |
https://en.wikipedia.org/wiki/Weird%20Nature | Weird Nature is a 2002 British documentary television series produced by John Downer Productions for the BBC and Discovery Channel. The series features strange behavior in nature—specifically, the animal world. The series now airs on the Science Channel and Animal Planet. The series took three years to make and a new f... |
https://en.wikipedia.org/wiki/List%20of%20operator%20splitting%20topics | This is a list of operator splitting topics.
General
Alternating direction implicit method — finite difference method for parabolic, hyperbolic, and elliptic partial differential equations
GRADELA — simple gradient elasticity model
Matrix splitting — general method of splitting a matrix operator into a sum or differen... |
https://en.wikipedia.org/wiki/Centered%20hexagonal%20number | In mathematics and combinatorics, a centered hexagonal number, or hex number, is a centered figurate number that represents a hexagon with a dot in the center and all other dots surrounding the center dot in a hexagonal lattice. The following figures illustrate this arrangement for the first four centered hexagonal num... |
https://en.wikipedia.org/wiki/Wafer%20backgrinding | Wafer backgrinding is a semiconductor device fabrication step during which wafer thickness is reduced to allow stacking and high-density packaging of integrated circuits (IC).
ICs are produced on semiconductor wafers that undergo a multitude of processing steps. The silicon wafers predominantly used today have diamete... |
https://en.wikipedia.org/wiki/Optogenetics | Optogenetics is a biological technique to control the activity of neurons or other cell types with light. This is achieved by expression of light-sensitive ion channels, pumps or enzymes specifically in the target cells. On the level of individual cells, light-activated enzymes and transcription factors allow precise c... |
https://en.wikipedia.org/wiki/Matroid%20rank | In the mathematical theory of matroids, the rank of a matroid is the maximum size of an independent set in the matroid. The rank of a subset S of elements of the matroid is, similarly, the maximum size of an independent subset of S, and the rank function of the matroid maps sets of elements to their ranks.
The rank fu... |
https://en.wikipedia.org/wiki/Quaternionic%20analysis | In mathematics, quaternionic analysis is the study of functions with quaternions as the domain and/or range. Such functions can be called functions of a quaternion variable just as functions of a real variable or a complex variable are called.
As with complex and real analysis, it is possible to study the concepts of ... |
https://en.wikipedia.org/wiki/Focal%20adhesion%20targeting%20region | In structural and cell biology, the focal adhesion targeting domain is a conserved protein domain that was first identified in focal adhesion kinase (FAK), also known as PTK2 protein tyrosine kinase 2 (PTK2).
Focal adhesions are multi-protein intracellular signalling complexes that link the cellular actin microfilamen... |
https://en.wikipedia.org/wiki/Photodissociation | Photodissociation, photolysis, photodecomposition, or photofragmentation is a chemical reaction in which molecules of a chemical compound are broken down by photons. It is defined as the interaction of one or more photons with one target molecule.
Photodissociation is not limited to visible light. Any photon with suf... |
https://en.wikipedia.org/wiki/Lie%20point%20symmetry | Lie point symmetry is a concept in advanced mathematics. Towards the end of the nineteenth century, Sophus Lie introduced the notion of Lie group in order to study the solutions of ordinary differential equations (ODEs). He showed the following main property: the order of an ordinary differential equation can be reduce... |
https://en.wikipedia.org/wiki/%E2%88%921 | In mathematics, −1 (negative one or minus one) is the additive inverse of 1, that is, the number that when added to 1 gives the additive identity element, 0. It is the negative integer greater than negative two (−2) and less than 0.
Algebraic properties
Multiplication
Multiplying a number by −1 is equivalent to chan... |
https://en.wikipedia.org/wiki/Mathematics%20Education%20Research%20Journal | Mathematics Education Research Journal is a quarterly peer-reviewed scientific journal covering mathematics education. It was established in 1989 and is published by Springer Science+Business Media on behalf of the Mathematics Education Research Group of Australasia. The editor-in-chief is Peter Grootenboer (Griffith U... |
https://en.wikipedia.org/wiki/47th%20meridian%20east | The meridian 47° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Europe, Asia, Africa, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 47th meridian east forms a great circle with the 133rd meridian west.
From Pole to Pole
Starting at the ... |
https://en.wikipedia.org/wiki/Orangutan%E2%80%93human%20last%20common%20ancestor | The phylogenetic split of Hominidae into the subfamilies Homininae and Ponginae is dated to the middle Miocene, roughly 18 to 14 million years ago. This split is also referenced as the "orangutan–human last common ancestor" by Jeffrey H. Schwartz, professor of anthropology at the University of Pittsburgh School of Arts... |
https://en.wikipedia.org/wiki/Tobias%20Preis | Tobias Preis is Professor of Behavioral Science and Finance at Warwick Business School and a fellow of the Alan Turing Institute. He is a computational social scientist focussing on measuring and predicting human behavior with online data. At Warwick Business School he directs the Data Science Lab together with his col... |
https://en.wikipedia.org/wiki/William%20B.%20Graham%20Prize%20for%20Health%20Services%20Research | The William B. Graham Prize for Health Services Research is an award acknowledging contributions to health care research. It is funded by the Baxter International Foundation, and awarded every year through the US-based Association of University Programs in Health Administration (AUPHA). The recipient is awarded $25,000... |
https://en.wikipedia.org/wiki/Australia%20Bioinformatics%20Resource | The Australia Bioinformatics Resource (EMBL-ABR) (formerly the Bioinformatics Resource Australia - EMBL (BRAEMBL)) was a significant initiative under the associate membership to EMBL.
Since 2019, all activities carried out under EMBL-ABR have rolled over into the Bioplatforms Australia (NCRIS-funded) Australian BioCo... |
https://en.wikipedia.org/wiki/Partial%20pressure | In a mixture of gases, each constituent gas has a partial pressure which is the notional pressure of that constituent gas as if it alone occupied the entire volume of the original mixture at the same temperature. The total pressure of an ideal gas mixture is the sum of the partial pressures of the gases in the mixture... |
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