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Thomas Bayes ( / b eɪ z / BAYZ , audio ⓘ ; c. 1701 – 7 April 1761 [ 2 ] [ 4 ] [ note 1 ] ) was an English statistician , philosopher and Presbyterian minister who is known for formulating a specific case of the theorem that bears his name: Bayes' theorem .
Bayes never published what would become his most famous accom... | https://en.wikipedia.org/wiki/Thomas_Bayes |
Thomas Carnelley (22 October 1854 – 27 August 1890) was a British chemist who contributed to physical chemistry and was involved in introducing German-inspired chemistry research into Britain as professor of chemistry at the University of Dundee and later at Aberdeen. He studied the relationships between the melting an... | https://en.wikipedia.org/wiki/Thomas_Carnelley |
Thomas Gilbert Henry Jones CBE (1895–1970) was an Australian organic chemist and academic, notable for his pioneering work in the field of essential oils from Queensland flora natural products .
Thomas Gilbert Henry Jones was born on 14 July 1895 in Owens Gap, Hunter Valley, New South Wales , the son of Thomas Jones a... | https://en.wikipedia.org/wiki/Thomas_Gilbert_Henry_Jones |
Thomas Henry Haines (August 9, 1933 – December 17, 2023) was an American author, social activist, biochemist and academic. He was a professor of chemistry at City College of New York and of biochemistry at the Sophie Davis School of Biomedical Education . He was a visiting professor in the Laboratory of Thomas Sakmar a... | https://en.wikipedia.org/wiki/Thomas_H._Haines |
Thomas Harriot ( / ˈ h ær i ə t / ; [ 2 ] c. 1560 – 2 July 1621), also spelled Harriott , Hariot or Heriot , was an English astronomer , mathematician , ethnographer and translator to whom the theory of refraction is attributed. Thomas Harriot was also recognized for his contributions in navigational techniques, [ 3 ] ... | https://en.wikipedia.org/wiki/Thomas_Harriot |
Thomas Shirley Hele (24 October 1881 – 23 January 1953) was a British academic. [ 1 ]
Hele was educated at Carlisle Grammar School ; Sedbergh School ; Emmanuel College, Cambridge ( Fellow , 1911); and Barts . He was University Lecturer in Biochemistry from 1921; Tutor at Emmanuel from 1922 to 1935; its Master from 193... | https://en.wikipedia.org/wiki/Thomas_Hele_(biochemist) |
Thomas Hobbes ( / h ɒ b z / HOBZ ; 5 April 1588 – 4 December 1679) was an English philosopher , best known for his 1651 book Leviathan , in which he expounds an influential formulation of social contract theory. [ 4 ] He is considered to be one of the founders of modern political philosophy . [ 5 ] [ 6 ]
In his early ... | https://en.wikipedia.org/wiki/Thomas_Hobbes |
Thomas Frank Hofmann (born 1968) is a German food chemist and academic administrator . Since 2019, he has been President of the Technical University of Munich .
Hofmann passed the Abitur in 1987 at the Meranier-Gymnasium Lichtenfels and studied food chemistry at the University of Erlangen–Nuremberg from 1988 to 1992. ... | https://en.wikipedia.org/wiki/Thomas_Hofmann |
Thomas Kurtzman is an American physical chemist most notable for his research into the use of convolutional neural networks (CNNs) to improve pharmaceutical design. According to Bioworld , [ 1 ] Kurtzman's research "reached the devastating conclusion that 'the entirety'" of apparent deep learning produced over the cour... | https://en.wikipedia.org/wiki/Thomas_Kurtzman |
Thomas M. Connelly Jr. (born June 1952) is an American business executive with a focus on chemical engineering. In February 2015, he succeeded Madeleine Jacobs as chief executive officer and executive director of the American Chemical Society . [ 1 ]
In November 2014, E. I. du Pont de Nemours and Company announced tha... | https://en.wikipedia.org/wiki/Thomas_M._Connelly |
Thomas Matthias Klapötke (born 24 February 1961 in Göttingen ) is a German inorganic chemist at Ludwig Maximilian University of Munich , studying explosives.
Klapötke grew up in Berlin and studied at Technische Universität Berlin (TU Berlin), completing his undergraduate degree in 1982, his PhD in 1986, and his habili... | https://en.wikipedia.org/wiki/Thomas_M._Klapötke |
Thomas Maclear (17 March 1794 – 14 July 1879) was an Irish -born Cape Colony astronomer who became Her Majesty's astronomer at the Cape of Good Hope . [ 1 ]
Born on 17 March 1794, in Newtownstewart , the eldest son of Rev. James Maclear and Mary Magrath. [ 2 ] In 1808, he was sent to England to be educated in the medi... | https://en.wikipedia.org/wiki/Thomas_Maclear |
Thomas Messinger Drown (March 19, 1842 – November 17, 1904) was the fourth University President of Lehigh University in Bethlehem, Pennsylvania , United States. He was also an analytical chemist and metallurgist . [ 1 ]
He was born in Philadelphia , Pennsylvania, in 1842. He graduated from Central High School in Phila... | https://en.wikipedia.org/wiki/Thomas_Messinger_Drown |
A. Thomas Tymoczko (September 1, 1943 – August 8, 1996) was a philosopher specializing in logic and the philosophy of mathematics . He taught at Smith College in Northampton , Massachusetts from 1971 until his death from stomach cancer in 1996, aged 52. [ 1 ] [ 2 ]
His publications include New Directions in the Philos... | https://en.wikipedia.org/wiki/Thomas_Tymoczko |
Thomas Vogt (born 1958) is a German chemist and material scientist . He is an Educational Foundation Distinguished Professor in the Department of Chemistry and Biochemistry at the University of South Carolina . [ 1 ]
Vogt is most known for his work in structural chemistry , chemical synthesis , and structure-property ... | https://en.wikipedia.org/wiki/Thomas_Vogt |
Thomas Whitwell (24 October 1837 – 5 August 1878) was a British engineer, inventor and metallurgist.
Known as Tom, he was the third son of William and Sarah Whitwell of Kendal. Tom was initially educated at home via private tutors he was sent to the Quaker run York School at 10 years old. In 1858, at 16, he travelle... | https://en.wikipedia.org/wiki/Thomas_Whitwell |
Thomas–Fermi screening is a theoretical approach to calculate the effects of electric field screening by electrons in a solid. [ 1 ] It is a special case of the more general Lindhard theory ; in particular, Thomas–Fermi screening is the limit of the Lindhard formula when the wavevector (the reciprocal of the length-sca... | https://en.wikipedia.org/wiki/Thomas–Fermi_screening |
Thompson sampling , [ 1 ] [ 2 ] [ 3 ] named after William R. Thompson , is a heuristic for choosing actions that address the exploration–exploitation dilemma in the multi-armed bandit problem. It consists of choosing the action that maximizes the expected reward with respect to a randomly drawn belief.
Consider a set ... | https://en.wikipedia.org/wiki/Thompson_sampling |
In mathematical finite group theory, Thompson's original uniqueness theorem ( Feit & Thompson 1963 , theorems 24.5 and 25.2) states that in a minimal simple finite group of odd order there is a unique maximal subgroup containing a given elementary abelian subgroup of rank 3. Bender (1970) gave a shorter proof of the un... | https://en.wikipedia.org/wiki/Thompson_uniqueness_theorem |
A transversely isotropic (also known as polar anisotropic ) material is one with physical properties that are symmetric about an axis that is normal to a plane of isotropy . This transverse plane has infinite planes of symmetry and thus, within this plane, the material properties are the same in all directions. In geop... | https://en.wikipedia.org/wiki/Thomsen_parameters |
In thermochemistry , the Thomsen–Berthelot principle is a hypothesis in the history of chemistry which argued that all chemical changes are accompanied by the production of heat and that processes which occur will be ones in which the most heat is produced. [ 1 ] This principle was formulated in slightly different vers... | https://en.wikipedia.org/wiki/Thomsen–Berthelot_principle |
Thomsen–Friedenreich antigen (Galβ1-3GalNAcα1-Ser/Thr) is a disaccharide that serves as a core 1 structure in O -linked glycosylation . [ 1 ] First described by Thomsen as a red blood cell's antigen, later research have determined it to be an oncofetal antigen . [ 2 ] it is present in the body as a part of membrane tra... | https://en.wikipedia.org/wiki/Thomsen–Friedenreich_antigen |
The objective of the Thomson problem is to determine the minimum electrostatic potential energy configuration of N electrons constrained to the surface of a unit sphere that repel each other with a force given by Coulomb's law . The physicist J. J. Thomson posed the problem in 1904 [ 1 ] after proposing an atomic model... | https://en.wikipedia.org/wiki/Thomson_problem |
Thomson scattering is the elastic scattering of electromagnetic radiation by a free charged particle , as described by classical electromagnetism . It is the low-energy limit of Compton scattering : the particle's kinetic energy and photon frequency do not change as a result of the scattering. [ 1 ] This limit is valid... | https://en.wikipedia.org/wiki/Thomson_scattering |
Thoriated glass is a glass material used in the manufacture of optical systems, specifically photographic lenses . It is useful to this process due to its high refractive index . Thoriated glass is radioactive due to the inclusion of thorium dioxide , oxide of radioactive element thorium . It has therefore been succeed... | https://en.wikipedia.org/wiki/Thoriated_glass |
2-(3,6-Disulfo-2-hydroxy-1-naphthylazo)benzenearsonic acid disodium salt Thoron
Thorin (also called thoron or thoronol ) is an indicator used in the determination of barium , beryllium , lithium , uranium and thorium compounds. Being a compound of arsenic , it is highly toxic. [ 1 ]
This article about an aromatic co... | https://en.wikipedia.org/wiki/Thorin_(chemistry) |
Thorium(IV) nitrate is a chemical compound , a salt of thorium and nitric acid with the formula Th(NO 3 ) 4 . A white solid in its anhydrous form, it can form tetra- and penta hydrates . As a salt of thorium it is weakly radioactive .
Thorium(IV) nitrate hydrate can be prepared by the reaction of thorium(IV) hydroxide... | https://en.wikipedia.org/wiki/Thorium(IV)_nitrate |
The thorium fuel cycle is a nuclear fuel cycle that uses an isotope of thorium , 232 Th , as the fertile material . In the reactor, 232 Th is transmuted into the fissile artificial uranium isotope 233 U which is the nuclear fuel . Unlike natural uranium , natural thorium contains only trace amounts of fissile material ... | https://en.wikipedia.org/wiki/Thorium_fuel_cycle |
The Thorne miniature rooms are a set of approximately 100 miniature models of rooms created between 1932 and 1940 under the direction of Narcissa Niblack Thorne . Ninety-nine of the rooms are believed still to be in existence; the majority (68) are on display at the Art Institute of Chicago , while 20 are at the Phoeni... | https://en.wikipedia.org/wiki/Thorne_miniature_rooms |
In plant morphology , thorns , spines , and prickles , and in general spinose structures (sometimes called spinose teeth or spinose apical processes ), are hard, rigid extensions or modifications of leaves , roots , stems , or buds with sharp, stiff ends, and generally serve the same function: physically defending plan... | https://en.wikipedia.org/wiki/Thorns,_spines,_and_prickles |
The Thorpe reaction is a chemical reaction described as a self-condensation of aliphatic nitriles catalyzed by base to form enamines . [ 1 ] [ 2 ] [ 3 ] The reaction was discovered by Jocelyn Field Thorpe .
The Thorpe–Ziegler reaction (named after Jocelyn Field Thorpe and Karl Ziegler ), or Ziegler method , is the int... | https://en.wikipedia.org/wiki/Thorpe_reaction |
The Thorpe–Ingold effect , gem-dimethyl effect , or angle compression is an effect observed in chemistry where increasing steric hindrance favours ring closure and intramolecular reactions. The effect was first reported by Beesley, Thorpe , and Ingold in 1915 as part of a study of cyclization reactions . [ 1 ] It has s... | https://en.wikipedia.org/wiki/Thorpe–Ingold_effect |
Thorson's rule (named after Gunnar Thorson by S. A. Mileikovsky in 1971) [ 1 ] is an ecogeographical rule which states that benthic marine invertebrates at low latitudes tend to produce large numbers of eggs developing to pelagic (often planktotrophic [plankton-feeding]) and widely dispersing larvae, whereas at high la... | https://en.wikipedia.org/wiki/Thorson's_rule |
Brain-reading or thought identification uses the responses of multiple voxels in the brain evoked by stimulus then detected by fMRI in order to decode the original stimulus. Advances in research have made this possible by using human neuroimaging to decode a person's conscious experience based on non-invasive measureme... | https://en.wikipedia.org/wiki/Thought_identification |
" Thoughts on Flash " is an open letter published by Steve Jobs , co-founder and then-chief executive officer of Apple Inc. , on April 29, 2010. The letter criticizes Adobe Systems ' Flash platform and outlines reasons why the technology would not be allowed on Apple's iOS hardware products. The letter drew accusations... | https://en.wikipedia.org/wiki/Thoughts_on_Flash |
The Thouless energy is a characteristic energy scale of diffusive disordered conductors . It was first introduced by the Scottish-American physicist David J. Thouless when studying Anderson localization , [ 1 ] as a measure of the sensitivity of energy levels to a change in the boundary conditions of the system. Though... | https://en.wikipedia.org/wiki/Thouless_energy |
TPTP (Thousands of Problems for Theorem Provers) [ 1 ] is a freely available collection of problems for automated theorem proving . It is used to evaluate the efficacy of automated reasoning algorithms. [ 2 ] [ 3 ] [ 4 ] Problems are expressed in a simple text-based format for first order logic or higher-order logic. [... | https://en.wikipedia.org/wiki/Thousands_of_Problems_for_Theorem_Provers |
The Thraustochytrium mitochondrial code (translation table 23) is a genetic code found in the mitochondria of the labyrinthulid protist Thraustochytrium aureum . [ 1 ] The mitochondrial genome was sequenced by the Organelle Genome Megasequencing Program .
Bases: adenine (A), cytosine (C), guanine (G) and thymine (T) o... | https://en.wikipedia.org/wiki/Thraustochytrium_mitochondrial_code |
A thread protector is used to protect the threads of a pipe during transportation and storage . Thread protectors are generally manufactured from plastic or steel and can be applied to the pipe manually or automatically (by machine).
Thread protectors are used frequently in the oil and gas industry to protect pipes d... | https://en.wikipedia.org/wiki/Thread_protector |
A threaded pipe is a pipe with screw-threaded ends for assembly.
The threaded pipes used in some plumbing installations for the delivery of gases or liquids under pressure have a tapered thread that is slightly conical (in contrast to the parallel sided cylindrical section commonly found on bolts and leadscrews ). The... | https://en.wikipedia.org/wiki/Threaded_pipe |
In molecular biology , protein threading , also known as fold recognition , is a method of protein modeling which is used to model those proteins which have the same fold as proteins of known structures , but do not have homologous proteins with known structure.
It differs from the homology modeling method of structure... | https://en.wikipedia.org/wiki/Threading_(protein_sequence) |
In computer security , a threat is a potential negative action or event enabled by a vulnerability that results in an unwanted impact to a computer system or application.
A threat can be either a negative " intentional " event (i.e. hacking: an individual cracker or a criminal organization) or an " accidental " negati... | https://en.wikipedia.org/wiki/Threat_(computer_security) |
Threat Intelligence Platform (TIP) is an emerging technology discipline that helps organizations aggregate, correlate, and analyze threat data from multiple sources in real time to support defensive actions. TIPs have evolved to address the growing amount of data generated by a variety of internal and external resource... | https://en.wikipedia.org/wiki/Threat_Intelligence_Platform |
Threat modeling is a process by which potential threats, such as structural vulnerabilities or the absence of appropriate safeguards, can be identified and enumerated, and countermeasures prioritized. [ 1 ] The purpose of threat modeling is to provide defenders with a systematic analysis of what controls or defenses ne... | https://en.wikipedia.org/wiki/Threat_model |
A threatened species is any species (including animals , plants and fungi ) which is vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of critical depensation , a mathematical measure of biomass related to population growth rate . Thi... | https://en.wikipedia.org/wiki/Threatened_species |
The three-axis acceleration switch is a micromachined microelectromechanical systems (MEMS) sensor that detects whether an acceleration event has exceeded a predefined threshold. [ 1 ] It is a small, compact device, only 5mm by 5mm, and measures acceleration in the x, y, and z axes. [ 2 ] It was developed by the Army R... | https://en.wikipedia.org/wiki/Three-Axis_Acceleration_Switch |
A three-body force is a force that does not exist in a system of two objects but appears in a three-body system. In general, if the behaviour of a system of more than two objects cannot be described by the two-body interactions between all possible pairs, as a first approximation, the deviation is mainly due to a three... | https://en.wikipedia.org/wiki/Three-body_force |
In physics , specifically classical mechanics , the three-body problem is to take the initial positions and velocities (or momenta ) of three point masses orbiting each other in space and then calculate their subsequent trajectories using Newton's laws of motion and Newton's law of universal gravitation . [ 1 ]
Unlike... | https://en.wikipedia.org/wiki/Three-body_problem |
The 3-center 4-electron (3c–4e) bond is a model used to explain bonding in certain hypervalent molecules such as tetratomic and hexatomic interhalogen compounds, sulfur tetrafluoride , the xenon fluorides , and the bifluoride ion. [ 1 ] [ 2 ] It is also known as the Pimentel–Rundle three-center model after the work pub... | https://en.wikipedia.org/wiki/Three-center_four-electron_bond |
A three-center two-electron (3c–2e) bond is an electron-deficient chemical bond where three atoms share two electrons . The combination of three atomic orbitals form three molecular orbitals : one bonding, one non -bonding, and one anti -bonding. The two electrons go into the bonding orbital, resulting in a net bonding... | https://en.wikipedia.org/wiki/Three-center_two-electron_bond |
The three-click rule or three click rule is an unofficial web design rule concerning the design of website navigation. It suggests that a user of a website should be able to find any information with no more than three mouse clicks. [ 1 ] It is based on the belief that users of a site will become frustrated and often ... | https://en.wikipedia.org/wiki/Three-click_rule |
Three-dimensional X-ray diffraction ( 3DXRD ) is a microscopy technique using hard X-rays (with energy in the 30-100 keV range) to investigate the internal structure of polycrystalline materials in three dimensions. [ 1 ] [ 2 ] For a given sample, 3DXRD returns the shape, juxtaposition, and orientation of the crystalli... | https://en.wikipedia.org/wiki/Three-dimensional_X-ray_diffraction |
Three-dimensional beamforming ( 3DBF ), full dimension MIMO or tilt angle adaptation is an interference coordination method in cellular networks and radar systems which brings significant improvements in comparison with conventional 2D beamforming techniques. Most beamforming schemes currently employed in wireless cell... | https://en.wikipedia.org/wiki/Three-dimensional_beamforming |
Three-dimension losses and correlation in turbomachinery refers to the measurement of flow-fields in three dimensions, where measuring the loss of smoothness of flow, and resulting inefficiencies, becomes difficult, unlike two-dimensional losses where mathematical complexity is substantially less.
Three-dimensionality... | https://en.wikipedia.org/wiki/Three-dimensional_losses_and_correlation_in_turbomachinery |
Three-dimensional quartz phenolic ( 3DQP ) [ 1 ] is a phenolic -based material composed of a quartz cloth material impregnated with a phenolic resin and hot-pressed. When cured, 3DQP can be machined in the same way as metals and is tough and fire-resistant. 3DQP is used for the manufacture of nuclear weapon re-entry ve... | https://en.wikipedia.org/wiki/Three-dimensional_quartz_phenolic |
In geometry , a three-dimensional space ( 3D space , 3-space or, rarely, tri-dimensional space ) is a mathematical space in which three values ( coordinates ) are required to determine the position of a point . Most commonly, it is the three-dimensional Euclidean space , that is, the Euclidean space of dimension three,... | https://en.wikipedia.org/wiki/Three-dimensional_space |
The three-domain system is a taxonomic classification system that groups all cellular life into three domains , namely Archaea , Bacteria and Eukarya , introduced by Carl Woese , Otto Kandler and Mark Wheelis in 1990. [ 1 ] The key difference from earlier classifications such as the two-empire system and the five-kingd... | https://en.wikipedia.org/wiki/Three-domain_system |
Three-phase electric power (abbreviated 3ϕ [ 1 ] ) is a common type of alternating current (AC) used in electricity generation , transmission , and distribution . [ 2 ] It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electr... | https://en.wikipedia.org/wiki/Three-phase_electric_power |
Three-photon microscopy ( 3PEF ) is a high-resolution fluorescence microscopy based on nonlinear excitation effect. [ 1 ] [ 2 ] [ 3 ] Different from two-photon excitation microscopy , it uses three exciting photons. It typically uses 1300 nm or longer wavelength lasers to excite the fluorescent dyes with three simultan... | https://en.wikipedia.org/wiki/Three-photon_microscopy |
In genetics , a three-point cross is used to determine the loci of three genes in an organism's genome .
An individual heterozygous for three mutations is crossed with a homozygous recessive individual, and the phenotypes of the progeny are scored. The two most common phenotypes that result are the parental gametes ; ... | https://en.wikipedia.org/wiki/Three-point_cross |
The three-point bending flexural test provides values for the modulus of elasticity
in bending E f {\displaystyle E_{f}} , flexural stress σ f {\displaystyle \sigma _{f}} , flexural strain ϵ f {\displaystyle \epsilon _{f}} and the flexural stress–strain response of the material. This test is performed on a universal te... | https://en.wikipedia.org/wiki/Three-point_flexural_test |
The three-process view is a psychological term coined by Janet E. Davidson and Robert Sternberg .
According to this concept, there are three kinds of insight: selective-encoding, selective-comparison, and selective-combination. [ 1 ]
This psychology -related article is a stub . You can help Wikipedia by expanding it ... | https://en.wikipedia.org/wiki/Three-process_view |
Three-taxon analysis (or TTS , three-item analysis , 3ia ) is a cladistic based method of phylogenetic reconstruction. Introduced by Nelson and Platnick in 1991 [ 2 ] to reconstruct organisms' phylogeny, this method can also be applied to biogeographic areas . It attempts to reconstruct complex phylogenetic trees by b... | https://en.wikipedia.org/wiki/Three-taxon_analysis |
In nonlinear systems , the three-wave equations , sometimes called the three-wave resonant interaction equations or triad resonances , describe small-amplitude waves in a variety of non-linear media, including electrical circuits and non-linear optics . They are a set of completely integrable nonlinear partial differen... | https://en.wikipedia.org/wiki/Three-wave_equation |
The Three Rs ( 3Rs ) are guiding principles for more ethical use of animals in product testing and scientific research. They were first described by W. M. S. Russell and R. L. Burch in 1959. [ 1 ] The 3Rs are:
The 3Rs have a broader scope than simply encouraging alternatives to animal testing , but aim to improve anim... | https://en.wikipedia.org/wiki/Three_Rs_(animal_research) |
Three dots (∴) also known as "tripunctual abbreviation" or "triple dot" is a symbol used all over the world in Freemasonry for abbreviations, signatures, and symbolic representation . The dots are typically arranged in a triangular pattern and carry multiple layers of meaning within Masonic tradition. [ 1 ] The (∴) is ... | https://en.wikipedia.org/wiki/Three_dots_(Freemasonry) |
In molecular genetics , the three prime untranslated region ( 3′-UTR ) is the section of messenger RNA (mRNA) that immediately follows the translation termination codon . The 3′-UTR often contains regulatory regions that post-transcriptionally influence gene expression .
During gene expression , an mRNA molecule is tr... | https://en.wikipedia.org/wiki/Three_prime_untranslated_region |
The three prisoners problem appeared in Martin Gardner 's " Mathematical Games " column in Scientific American in 1959. [ 1 ] [ 2 ] It is mathematically equivalent to the Monty Hall problem with car and goat replaced respectively with freedom and execution. [ 3 ]
Three prisoners, A, B, and C, are in separate cells and... | https://en.wikipedia.org/wiki/Three_prisoners_problem |
A three roll mill or triple roll mill [ 1 ] is a machine that uses shear force created by three horizontally positioned rolls rotating in opposite directions and different speeds relative to each other, in order to mix, refine, disperse, or homogenize viscous materials fed into it.
The three-roll mill has proven to be... | https://en.wikipedia.org/wiki/Three_roll_mill |
In mathematics , the three spheres inequality bounds the L 2 {\displaystyle L^{2}} norm of a harmonic function on a given sphere in terms of the L 2 {\displaystyle L^{2}} norm of this function on two spheres, one with bigger radius and one with smaller radius.
Let u {\displaystyle u} be an harmonic function on R n {\d... | https://en.wikipedia.org/wiki/Three_spheres_inequality |
Threose nucleic acid ( TNA ) is an artificial genetic polymer in which the natural five-carbon ribose sugar found in RNA has been replaced by an unnatural four-carbon threose sugar. [ 1 ] Invented by Albert Eschenmoser as part of his quest to explore the chemical etiology of RNA, [ 2 ] TNA has become an important synth... | https://en.wikipedia.org/wiki/Threose_nucleic_acid |
In materials science , the threshold displacement energy ( T d ) is the minimum kinetic energy that an atom in a solid needs to be permanently displaced from its site in the lattice to a defect position. It is also known as "displacement threshold energy" or just "displacement energy". In a crystal , a separate thresho... | https://en.wikipedia.org/wiki/Threshold_displacement_energy |
In particle physics , the threshold energy for production of a particle is the minimum kinetic energy that must be imparted to one of a pair of particles in order for their collision to produce a given result. [ 1 ] If the desired result is to produce a third particle then the threshold energy is greater than or equal ... | https://en.wikipedia.org/wiki/Threshold_energy |
Mitochondrial threshold effect is a phenomenon where the number of mutated mtDNA has surpassed a certain threshold which causes the electron transport chain and ATP synthesis of a mitochondrion to fail. [ 1 ] There isn't a set number that needs to be surpassed, however, it is associated with an increase of the number o... | https://en.wikipedia.org/wiki/Threshold_expression |
Threshold host density (N T ) , in the context of wildlife disease ecology , refers to the concentration of a population of a particular organism as it relates to disease. Specifically, the threshold host density (N T ) of a species refers to the minimum concentration of individuals necessary to sustain a given diseas... | https://en.wikipedia.org/wiki/Threshold_host_density |
In mathematical or statistical modeling a threshold model is any model where a threshold value, or set of threshold values, is used to distinguish ranges of values where the behaviour predicted by the model varies in some important way. A particularly important instance arises in toxicology, where the model for the eff... | https://en.wikipedia.org/wiki/Threshold_model |
The threshold of toxilogical concern (or TTC ) is a method for determining the level of exposure to chemicals above which would be considered toxic, [ 1 ] in cases where data about such chemicals is scarce or non-existent. [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ]
This toxicology -related article is a stub . You can help Wikipedi... | https://en.wikipedia.org/wiki/Threshold_of_toxilogical_concern |
The thrifty gene hypothesis , or Gianfranco's hypothesis [ citation needed ] is an attempt by geneticist James V. Neel to explain why certain populations and subpopulations in the modern day are prone to diabetes mellitus type 2 . He proposed the hypothesis in 1962 to resolve a fundamental problem: diabetes is clearly ... | https://en.wikipedia.org/wiki/Thrifty_gene_hypothesis |
Thrifty phenotype refers to the correlation between low birth weight of neonates and the increased risk of developing metabolic syndromes later in life, including type 2 diabetes and cardiovascular diseases . [ 1 ] Although early life undernutrition is thought to be the key driving factor to the hypothesis, other envir... | https://en.wikipedia.org/wiki/Thrifty_phenotype |
A throat culture is a laboratory diagnostic test that evaluates for the presence of a bacterial or fungal infection in the throat. A sample from the throat is collected by swabbing the throat and placing the sample into a special cup ( culture ) that allows infections to grow. If an organism grows, the culture is posit... | https://en.wikipedia.org/wiki/Throat_culture |
In hydrology , throughfall is the process which describes how wet leaves shed excess water onto the ground surface. These drops have greater erosive power because they are heavier than rain drops. Furthermore, where there is a high canopy, falling drops may reach terminal velocity , about 8 metres (26 ft), thus maximiz... | https://en.wikipedia.org/wiki/Throughfall |
In hydrology , throughflow , a subtype of interflow (percolation), is the lateral unsaturated flow of water in the soil zone, typically through a highly permeable geologic unit overlying a less permeable one. Water thus returns to the surface, as return flow , before or on entering a stream or groundwater. [ 1 ] [ 2 ] ... | https://en.wikipedia.org/wiki/Throughflow |
Throwback uniforms , throwback jerseys , retro kits or heritage guernseys are sports uniforms styled to resemble the uniforms that a team wore in the past . One-time or limited-time retro uniforms are sometimes produced to be worn by teams in games, on special occasions such as anniversaries of significant events.
Thr... | https://en.wikipedia.org/wiki/Throwback_uniform |
Thrust-to-weight ratio is a dimensionless ratio of thrust to weight of a rocket , jet engine , propeller engine, or a vehicle propelled by such an engine that is an indicator of the performance of the engine or vehicle.
The instantaneous thrust-to-weight ratio of a vehicle varies continually during operation due to pr... | https://en.wikipedia.org/wiki/Thrust-to-weight_ratio |
In modular arithmetic , Thue's lemma roughly states that every modular integer may be represented by a "modular fraction" such that the numerator and the denominator have absolute values not greater than the square root of the modulus.
More precisely, for every pair of integers ( a , m ) with m > 1 , given two positiv... | https://en.wikipedia.org/wiki/Thue's_lemma |
In mathematics , a Thue equation is a Diophantine equation of the form
f ( x , y ) = r , {\displaystyle f(x,y)=r,}
where f {\displaystyle f} is an irreducible bivariate form of degree at least 3 over the rational numbers , and r {\displaystyle r} is a nonzero rational number. It is named after Axel Thue , who in 1909... | https://en.wikipedia.org/wiki/Thue_equation |
Thujaplicinol is either of two isomeric tropolone -related natural products . They are found in tree species primarily in bark, needles, xylem, of the family of Cupressaceae like the Cupressus, Thuja, Juniperus and Thujopsis . [ 1 ] [ 2 ] The thujaplicinols are structurally equivalent to the thujaplicins with an additi... | https://en.wikipedia.org/wiki/Thujaplicinol |
Thumbcast is a term used for the mobile delivery of text, picture, audio, or video content via short message service , multimedia messaging service , WAP push , or other mobile distribution mechanism. The term is an evolution specialized for original mobile content, coming from the generally audio-based podcast , the i... | https://en.wikipedia.org/wiki/Thumbcast |
Thumbshots are screenshots of online documents such as web page in small thumbnail sizes. Thumbshots help users to visualize web sites or preview links before clicking. The dimension of a thumbshot image (usually under 120 pixels in width by 90 pixels in height) is generally much smaller than the actual online document... | https://en.wikipedia.org/wiki/Thumbshot |
Thunderstorm asthma (also referred to in the media as thunder fever or a pollen bomb [ 1 ] ) is the triggering of an asthma attack by environmental conditions directly caused by a local thunderstorm . Due to the acute nature of the onset and wide exposure of local populations to the same triggering conditions, severe e... | https://en.wikipedia.org/wiki/Thunderstorm_asthma |
In computer programming , a thunk is a subroutine used to inject a calculation into another subroutine. Thunks are primarily used to delay a calculation until its result is needed, or to insert operations at the beginning or end of the other subroutine. They have many other applications in compiler code generation and ... | https://en.wikipedia.org/wiki/Thunk |
Thuraya ( Arabic : الثريا , Gulf Arabic pron.: [ɐθ.θʊˈrɑj.jɐ] ; from the Arabic name for the Pleiades , Thurayya ) [ 1 ] is a United Arab Emirates -based regional mobile-satellite service (MSS) provider. The company operates two geosynchronous satellites and provides telecommunications coverage in about 150 countries ... | https://en.wikipedia.org/wiki/Thuraya |
Thure E. Cerling (born 1949) [ 1 ] is a Distinguished Professor of Geology and Geophysics and a Distinguished Professor of Biology at the University of Utah . [ 2 ] Cerling is a leading expert in the evolution of modern landscapes including modern mammals and their associated grassland ecologies and stable isotope anal... | https://en.wikipedia.org/wiki/Thure_E._Cerling |
William Thurston 's elliptization conjecture states that a closed 3-manifold with finite fundamental group is spherical , i.e. has a Riemannian metric of constant positive sectional curvature.
A 3-manifold with a Riemannian metric of constant positive sectional curvature is covered by the 3-sphere, moreover the group ... | https://en.wikipedia.org/wiki/Thurston_elliptization_conjecture |
In mathematics, the Thurston norm is a function on the second homology group of an oriented 3-manifold introduced by William Thurston , which measures in a natural way the topological complexity of homology classes represented by surfaces.
Let M {\displaystyle M} be a differentiable manifold and c ∈ H 2 ( M ) {\displa... | https://en.wikipedia.org/wiki/Thurston_norm |
1 Granum 2 Chloroplast envelope
3 Thylakoid ◄ You are here
4 Stromal thylakoid 5 Stroma 6 Nucleoid (DNA ring) 7 Ribosome 8 Plastoglobulus 9 Starch granule
Thylakoids are membrane-bound compartments inside chloroplasts and cyanobacteria . They are the site of the light-dependent reactions of photosynthesis . Thylakoi... | https://en.wikipedia.org/wiki/Thylakoid |
Thymic mimetic cells are a heterogeneous population of cells located in the thymus that exhibit phenotypes of a wide variety of differentiated peripheral cells. They arise from medullary thymic epithelial cells (mTECs) and also function in negative selection of self-reactive T cells . [ 1 ]
Some subsets of these cells... | https://en.wikipedia.org/wiki/Thymic_mimetic_cells |
Thymidine diphosphate ( TDP ) or deoxythymidine diphosphate ( dTDP ) (also thymidine pyrophosphate , dTPP ) is a nucleotide diphosphate . It is an ester of pyrophosphoric acid with the nucleoside thymidine . dTDP consists of the pyrophosphate group , the pentose sugar ribose , and the nucleobase thymine . Unlike the o... | https://en.wikipedia.org/wiki/Thymidine_diphosphate |
Thymidine diphosphate glucose (often abbreviated dTDP-glucose or TDP-glucose ) is a nucleotide-linked sugar consisting of deoxythymidine diphosphate linked to glucose . It is the starting compound for the syntheses of many deoxysugars . [ 1 ]
DTDP-glucose is produced by the enzyme glucose-1-phosphate thymidylyltransfe... | https://en.wikipedia.org/wiki/Thymidine_diphosphate_glucose |
Thymidine monophosphate ( TMP ), also known as thymidylic acid ( conjugate base thymidylate ), deoxythymidine monophosphate ( dTMP ), or deoxythymidylic acid ( conjugate base deoxythymidylate ), is a nucleotide that is used as a monomer in DNA . It is an ester of phosphoric acid with the nucleoside thymidine . dTMP con... | https://en.wikipedia.org/wiki/Thymidine_monophosphate |
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