id int64 39 79M | url stringlengths 32 168 | text stringlengths 7 145k | source stringlengths 2 105 | categories listlengths 1 6 | token_count int64 3 32.2k | subcategories listlengths 0 27 |
|---|---|---|---|---|---|---|
9,697,733 | https://en.wikipedia.org/wiki/Contact%20mechanics | Contact mechanics is the study of the deformation of solids that touch each other at one or more points. A central distinction in contact mechanics is between stresses acting perpendicular to the contacting bodies' surfaces (known as normal stress) and frictional stresses acting tangentially between the surfaces (shear... | Contact mechanics | [
"Physics",
"Engineering"
] | 6,732 | [
"Solid mechanics",
"Applied and interdisciplinary physics",
"Mechanical engineering",
"Mechanics"
] |
7,470,561 | https://en.wikipedia.org/wiki/Fractography | Fractography is the study of the fracture surfaces of materials. Fractographic methods are routinely used to determine the cause of failure in engineering structures, especially in product failure and the practice of forensic engineering or failure analysis. In material science research, fractography is used to develop... | Fractography | [
"Materials_science",
"Engineering"
] | 1,541 | [
"Structural engineering",
"Fracture mechanics",
"Materials science",
"Mechanical engineering",
"Materials degradation",
"Mechanical failure"
] |
7,473,698 | https://en.wikipedia.org/wiki/Multipoint%20ground | A multipoint ground is an alternate type of electrical installation that attempts to solve the ground loop and mains hum problem by creating many alternate paths for electrical energy to find its way back to ground. The distinguishing characteristic of a multipoint ground is the use of many interconnected grounding co... | Multipoint ground | [
"Physics",
"Engineering"
] | 863 | [
"Physical quantities",
"Electrical systems",
"Building engineering",
"Physical systems",
"Power (physics)",
"Electronic engineering",
"Electric power",
"Electrical engineering",
"Electrical wiring",
"Electrical circuits"
] |
7,473,734 | https://en.wikipedia.org/wiki/Annual%20Review%20of%20Biomedical%20Engineering | Annual Review of Biomedical Engineering is an academic journal published by Annual Reviews. In publication since 1999, this journal covers the significant developments in the broad field of biomedical engineering with an annual volume of review articles. It is edited by Martin L. Yarmush and Mehmet Toner. As of 2024, ... | Annual Review of Biomedical Engineering | [
"Engineering",
"Biology"
] | 548 | [
"Biological engineering",
"Medical technology",
"Biomedical engineering"
] |
7,474,102 | https://en.wikipedia.org/wiki/Hit%20to%20lead | Hit to lead (H2L) also known as lead generation is a stage in early drug discovery where small molecule hits from a high throughput screen (HTS) are evaluated and undergo limited optimization to identify promising lead compounds. These lead compounds undergo more extensive optimization in a subsequent step of drug dis... | Hit to lead | [
"Chemistry",
"Biology"
] | 1,074 | [
"Life sciences industry",
"Medicinal chemistry",
"Drug discovery"
] |
7,474,152 | https://en.wikipedia.org/wiki/Hybrid%20speciation | Hybrid speciation is a form of speciation where hybridization between two different species leads to a new species, reproductively isolated from the parent species. Previously, reproductive isolation between two species and their parents was thought to be particularly difficult to achieve, and thus hybrid species were ... | Hybrid speciation | [
"Biology"
] | 2,201 | [
"Evolutionary processes",
"Speciation",
"Genetics",
"Evolutionary biology terminology"
] |
7,474,528 | https://en.wikipedia.org/wiki/Pandora%20FMS | Pandora FMS (for Pandora Flexible Monitoring System) is software for monitoring computer networks. Pandora FMS allows monitoring in a visual way the status and performance of several parameters from different operating systems, servers, applications and hardware systems such as firewalls, proxies, databases, web server... | Pandora FMS | [
"Engineering"
] | 855 | [
"Artificial intelligence engineering",
"Multi-agent systems"
] |
7,475,753 | https://en.wikipedia.org/wiki/C15H24O | {{DISPLAYTITLE:C15H24O}}
The molecular formula C15H24O may refer to:
Butylated hydroxytoluene, a food additive
Khusimol
Nonylphenol
1-Nonyl-4-phenol
α-Santalol
β-Santalol
Spathulenol
Molecular formulas | C15H24O | [
"Physics",
"Chemistry"
] | 74 | [
"Molecules",
"Set index articles on molecular formulas",
"Isomerism",
"Molecular formulas",
"Matter"
] |
4,297,420 | https://en.wikipedia.org/wiki/Respiratory%20quotient | The respiratory quotient (RQ or respiratory coefficient) is a dimensionless number used in calculations of basal metabolic rate (BMR) when estimated from carbon dioxide production. It is calculated from the ratio of carbon dioxide produced by the body to oxygen consumed by the body, when the body is in a steady state. ... | Respiratory quotient | [
"Chemistry",
"Biology"
] | 1,934 | [
"Biochemistry methods",
"Biochemistry",
"Metabolism",
"Cellular processes"
] |
4,303,674 | https://en.wikipedia.org/wiki/Deposition%20%28phase%20transition%29 | Deposition is the phase transition in which gas transforms into solid without passing through the liquid phase. Deposition is a thermodynamic process. The reverse of deposition is sublimation and hence sometimes deposition is called desublimation.
Applications
Examples
One example of deposition is the process by whi... | Deposition (phase transition) | [
"Physics",
"Chemistry"
] | 505 | [
"Physical phenomena",
"Phase transitions",
"Critical phenomena",
"Phases of matter",
"Statistical mechanics",
"Matter"
] |
4,304,272 | https://en.wikipedia.org/wiki/Vasopressin%20receptor%201A | Vasopressin receptor 1A (V1AR), or arginine vasopressin receptor 1A (officially called AVPR1A) is one of the three major receptor types for vasopressin (AVPR1B and AVPR2 being the others), and is present throughout the brain, as well as in the periphery in the liver, kidney, and vasculature.
AVPR1A is also known as:
... | Vasopressin receptor 1A | [
"Chemistry"
] | 2,309 | [
"G protein-coupled receptors",
"Signal transduction"
] |
4,304,500 | https://en.wikipedia.org/wiki/Singular%20measure | In mathematics, two positive (or signed or complex) measures and defined on a measurable space are called singular if there exist two disjoint measurable sets whose union is such that is zero on all measurable subsets of while is zero on all measurable subsets of This is denoted by
A refined form of Lebesgue... | Singular measure | [
"Physics",
"Mathematics"
] | 335 | [
"Physical quantities",
"Calculus",
"Measures (measure theory)",
"Quantity",
"Size",
"Integral calculus"
] |
16,465,219 | https://en.wikipedia.org/wiki/Mass%20spectral%20interpretation | Mass spectral interpretation is the method employed to identify the chemical formula, characteristic fragment patterns and possible fragment ions from the mass spectra. Mass spectra is a plot of relative abundance against mass-to-charge ratio. It is commonly used for the identification of organic compounds from electro... | Mass spectral interpretation | [
"Physics",
"Chemistry"
] | 3,392 | [
"Spectrum (physical sciences)",
"Instrumental analysis",
"Mass",
"Mass spectrometry",
"Matter"
] |
5,730,974 | https://en.wikipedia.org/wiki/Stability%20derivatives | Stability derivatives, and also control derivatives, are measures of how particular forces and moments on an aircraft change as other parameters related to stability change (parameters such as airspeed, altitude, angle of attack, etc.). For a defined "trim" flight condition, changes and oscillations occur in these par... | Stability derivatives | [
"Chemistry",
"Engineering"
] | 3,276 | [
"Aerospace engineering",
"Aerodynamics",
"Fluid dynamics"
] |
5,732,212 | https://en.wikipedia.org/wiki/MUSCL%20scheme | In the study of partial differential equations, the MUSCL scheme is a finite volume method that can provide highly accurate numerical solutions for a given system, even in cases where the solutions exhibit shocks, discontinuities, or large gradients. MUSCL stands for Monotonic Upstream-centered Scheme for Conservation... | MUSCL scheme | [
"Physics",
"Chemistry",
"Engineering"
] | 3,336 | [
"Computational fluid dynamics",
"Chemical engineering",
"Computational physics",
"Piping",
"Fluid dynamics"
] |
5,733,602 | https://en.wikipedia.org/wiki/Fayette%20County%20Reservoir | Fayette County Reservoir is a power station cooling reservoir on Cedar Creek in the Colorado River basin, 3 miles west of Fayetteville, Texas and 10 miles east of La Grange, Texas. The reservoir was created in 1978 when a dam was built on the creek to provide a cooling pond for the Fayette Power Project which provides ... | Fayette County Reservoir | [
"Chemistry",
"Environmental_science"
] | 716 | [
"Cooling ponds",
"Water pollution"
] |
5,733,841 | https://en.wikipedia.org/wiki/Beartown%20State%20Forest | Beartown State Forest is a publicly owned forest with recreational features located in the towns of Great Barrington, Monterey, Lee, and Tyringham, Massachusetts. The state forest's more than include of recreational parkland. It is managed by the Massachusetts Department of Conservation and Recreation.
History
The f... | Beartown State Forest | [
"Biology"
] | 387 | [
"Old-growth forests",
"Ecosystems"
] |
13,718,304 | https://en.wikipedia.org/wiki/Terminal%20countdown%20demonstration%20test | A terminal countdown demonstration test (TCDT) is a simulation of the final hours of a launch countdown and serves as a practice exercise in which both the launch team and flight crew rehearse launch day timelines and procedures. In the specific case of a TCDT for the Space Shuttle, the test culminated in a simulated i... | Terminal countdown demonstration test | [
"Physics",
"Astronomy",
"Mathematics"
] | 243 | [
"Physical quantities",
"Time",
"Time stubs",
"Outer space",
"Outer space stubs",
"Quantity",
"Astronomy stubs",
"Spacetime",
"Wikipedia categories named after physical quantities",
"Spaceflight"
] |
13,718,716 | https://en.wikipedia.org/wiki/N-Acetyltalosaminuronic%20acid | N-Acetyltalosaminuronic acid is a uronic acid. It is a component of pseudopeptidoglycan, a structural polymer found in the cell walls in some types of Archaea.
Amino sugars
Sugar acids | N-Acetyltalosaminuronic acid | [
"Chemistry"
] | 51 | [
"Amino sugars",
"Carbohydrates",
"Sugar acids",
"Organic compounds",
"Organic compound stubs",
"Organic chemistry stubs"
] |
13,721,033 | https://en.wikipedia.org/wiki/Etifelmine | Etifelmine (INN; also known as gilutensin) is a stimulant drug. It was used for the treatment of hypotension (low blood pressure).
Synthesis
The base-catalyzed reaction between benzophenone (1) and butyronitrile (2) gives 2-[hydroxy(diphenyl)methyl]butanenitrile (3). Catalytic hydrogenation reduces the nitrile group t... | Etifelmine | [
"Chemistry"
] | 182 | [
"Amines",
"Bases (chemistry)",
"Functional groups"
] |
13,721,526 | https://en.wikipedia.org/wiki/Standalone%20program | A standalone program, also known as a freestanding program, is a computer program that does not load any external module, library function or program and that is designed to boot with the bootstrap procedure of the target processor – it runs on bare metal. In early computers like the ENIAC without the concept of an ope... | Standalone program | [
"Technology",
"Engineering"
] | 369 | [
"Computer programming",
"Computer systems",
"Software engineering",
"Legacy systems",
"Computers",
"History of computing"
] |
13,722,767 | https://en.wikipedia.org/wiki/Willmore%20conjecture | In differential geometry, the Willmore conjecture is a lower bound on the Willmore energy of a torus. It is named after the English mathematician Tom Willmore, who conjectured it in 1965. A proof by Fernando Codá Marques and André Neves was announced in 2012 and published in 2014.
Willmore energy
Let v : M → R3 be a ... | Willmore conjecture | [
"Mathematics"
] | 475 | [
"Theorems in differential geometry",
"Theorems in geometry",
"Conjectures that have been proved",
"Mathematical problems",
"Mathematical theorems"
] |
13,725,281 | https://en.wikipedia.org/wiki/Differential%20inclusion | In mathematics, differential inclusions are a generalization of the concept of ordinary differential equation of the form
where F is a multivalued map, i.e. F(t, x) is a set rather than a single point in . Differential inclusions arise in many situations including differential variational inequalities, projected dyna... | Differential inclusion | [
"Physics",
"Mathematics"
] | 808 | [
"Mechanics",
"Dynamical systems"
] |
13,725,692 | https://en.wikipedia.org/wiki/List%20of%20public%20transport%20smart%20cards | The following tables list smart cards used for public transport and other electronic purse applications.
Africa
Americas
Asia and Oceania
Europe
Gallery
See also
Calypso, an international electronic ticketing standard, originally designed by a group of transit operators
CIPURSE, is an open security standard for... | List of public transport smart cards | [
"Physics"
] | 98 | [
"Physical systems",
"Transport",
"Transport lists"
] |
3,160,029 | https://en.wikipedia.org/wiki/Numberlink | Numberlink is a type of logic puzzle involving finding paths to connect numbers in a grid.
Rules
The player has to pair up all the matching numbers on the grid with single continuous lines (or paths). The lines cannot branch off or cross over each other, and the numbers have to fall at the end of each line (i.e., not ... | Numberlink | [
"Mathematics"
] | 397 | [
"NP-complete problems",
"Mathematical problems",
"Computational problems"
] |
3,160,379 | https://en.wikipedia.org/wiki/Organ%20printing | Organ printing utilizes techniques similar to conventional 3D printing where a computer model is fed into a printer that lays down successive layers of plastics or wax until a 3D object is produced. In the case of organ printing, the material being used by the printer is a biocompatible plastic. The biocompatible plast... | Organ printing | [
"Chemistry",
"Engineering",
"Biology"
] | 5,528 | [
"Biological engineering",
"Cloning",
"Chemical engineering",
"Tissue engineering",
"Medical technology"
] |
3,165,608 | https://en.wikipedia.org/wiki/Stress%20corrosion%20cracking | Stress corrosion cracking (SCC) is the growth of crack formation in a corrosive environment. It can lead to unexpected and sudden failure of normally ductile metal alloys subjected to a tensile stress, especially at elevated temperature. SCC is highly chemically specific in that certain alloys are likely to undergo SCC... | Stress corrosion cracking | [
"Chemistry",
"Materials_science",
"Technology",
"Engineering"
] | 2,298 | [
"Structural engineering",
"Systems engineering",
"Fracture mechanics",
"Reliability engineering",
"Metallurgy",
"Technological failures",
"Materials science",
"Corrosion",
"Engineering failures",
"Electrochemistry",
"Civil engineering",
"Materials degradation"
] |
11,164,335 | https://en.wikipedia.org/wiki/Carboxypeptidase%20B | Carboxypeptidase B (, protaminase, pancreatic carboxypeptidase B, tissue carboxypeptidase B, peptidyl-L-lysine [L-arginine]hydrolase) is a carboxypeptidase that preferentially cleaves off basic amino acids arginine and lysine from the C-terminus of a peptide. This enzyme is secreted by the pancreas, and it travels to ... | Carboxypeptidase B | [
"Chemistry",
"Biology"
] | 191 | [
"Cellular processes",
"Biochemistry",
"Metabolism"
] |
11,167,164 | https://en.wikipedia.org/wiki/Integrated%20Biosphere%20Simulator | IBIS-2 is the version 2 of the land-surface model Integrated Biosphere Simulator (IBIS), which includes several major improvements and additions to the prototype model developed by Foley et al. [1996]. IBIS was designed to explicitly link land surface and hydrological processes, terrestrial biogeochemical cycles, and v... | Integrated Biosphere Simulator | [
"Biology",
"Environmental_science"
] | 1,155 | [
"Environmental social science",
"Biological models",
"Systems ecology"
] |
11,167,824 | https://en.wikipedia.org/wiki/Saint-Venant%27s%20compatibility%20condition | In the mathematical theory of elasticity, Saint-Venant's compatibility condition defines the relationship between the strain and a displacement field by
where . Barré de Saint-Venant derived the compatibility condition for an arbitrary symmetric second rank tensor field to be of this form, this has now been general... | Saint-Venant's compatibility condition | [
"Physics",
"Materials_science",
"Engineering"
] | 705 | [
"Physical phenomena",
"Tensors",
"Elasticity (physics)",
"Deformation (mechanics)",
"Physical properties"
] |
11,168,921 | https://en.wikipedia.org/wiki/Topsides | The topsides on a boat, ship, watercraft, or floating production storage and offloading (FPSO) vessel, is that part of the hull between the waterline and the deck. It includes the visible parts of the bow, stern, sheer, and, if present, tumblehome.
On an offshore oil platform, topsides refers to the upper half of the... | Topsides | [
"Chemistry",
"Engineering"
] | 173 | [
"Oil platforms",
"Petroleum technology",
"Natural gas technology",
"Structural engineering"
] |
634,785 | https://en.wikipedia.org/wiki/Dissipation%20factor | In physics, the dissipation factor (DF) is a measure of loss-rate of energy of a mode of oscillation (mechanical, electrical, or electromechanical) in a dissipative system. It is the reciprocal of quality factor, which represents the "quality" or durability of oscillation.
Explanation
Electrical potential energy is d... | Dissipation factor | [
"Physics",
"Mathematics",
"Engineering"
] | 614 | [
"Electromagnetism",
"Physical phenomena",
"Mechanics",
"Fundamental interactions",
"Electrical engineering",
"Dynamical systems"
] |
634,858 | https://en.wikipedia.org/wiki/Vacuum%20chamber | A vacuum chamber is a rigid enclosure from which air and other gases are removed by a vacuum pump. This results in a low-pressure environment within the chamber, commonly referred to as a vacuum. A vacuum environment allows researchers to conduct physical experiments or to test mechanical devices which must operate in ... | Vacuum chamber | [
"Physics",
"Engineering"
] | 983 | [
"Vacuum systems",
"Vacuum",
"Matter"
] |
635,483 | https://en.wikipedia.org/wiki/Gromov%27s%20theorem%20on%20groups%20of%20polynomial%20growth | In geometric group theory, Gromov's theorem on groups of polynomial growth, first proved by Mikhail Gromov, characterizes finitely generated groups of polynomial growth, as those groups which have nilpotent subgroups of finite index.
Statement
The growth rate of a group is a well-defined notion from asymptotic analys... | Gromov's theorem on groups of polynomial growth | [
"Physics"
] | 817 | [
"Geometric group theory",
"Group actions",
"Symmetry"
] |
635,546 | https://en.wikipedia.org/wiki/Unified%20neutral%20theory%20of%20biodiversity | The unified neutral theory of biodiversity and biogeography (here "Unified Theory" or "UNTB") is a theory and the title of a monograph by ecologist Stephen P. Hubbell. It aims to explain the diversity and relative abundance of species in ecological communities. Like other neutral theories of ecology, Hubbell assumes th... | Unified neutral theory of biodiversity | [
"Biology"
] | 4,028 | [
"Non-Darwinian evolution",
"Neutral theory",
"Biology theories",
"Biodiversity"
] |
636,008 | https://en.wikipedia.org/wiki/Lunitidal%20interval | The lunitidal interval measures the time lag from lunar culmination to the next high tide at a given location. It is also called the high water interval (HWI). Sometimes a term is not used for the time lag, but instead the terms age or establishment of the tide are used for the entry that is in tide tables.
Tides are ... | Lunitidal interval | [
"Physics"
] | 485 | [
"Applied and interdisciplinary physics",
"Physical oceanography"
] |
636,035 | https://en.wikipedia.org/wiki/Convection%20oven | A convection oven (also known as a fan-assisted oven, turbo broiler or simply a fan oven or turbo) is an oven that has fans to circulate air around food to create an evenly heated environment. In an oven without a fan, natural convection circulates hot air unevenly, so that it will be cooler at the bottom and hotter at... | Convection oven | [
"Physics",
"Chemistry"
] | 1,723 | [
"Transport phenomena",
"Physical phenomena",
"Convection",
"Thermodynamics"
] |
636,094 | https://en.wikipedia.org/wiki/Irreversible%20process | In science, a process that is not reversible is called irreversible. This concept arises frequently in thermodynamics. All complex natural processes are irreversible, although a phase transition at the coexistence temperature (e.g. melting of ice cubes in water) is well approximated as reversible.
In thermodynamics, a... | Irreversible process | [
"Physics",
"Chemistry",
"Mathematics"
] | 2,002 | [
"Thermodynamics",
"Dynamical systems"
] |
636,219 | https://en.wikipedia.org/wiki/Pressure%20vessel | A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.
Construction methods and materials may be chosen to suit the pressure application, and will depend on the size of the vessel, the contents, working pressure, mass constraints, and the num... | Pressure vessel | [
"Physics",
"Chemistry",
"Engineering"
] | 7,064 | [
"Structural engineering",
"Chemical equipment",
"Physical systems",
"Hydraulics",
"Pressure vessels"
] |
636,427 | https://en.wikipedia.org/wiki/Mahler%27s%20compactness%20theorem | In mathematics, Mahler's compactness theorem, proved by , is a foundational result on lattices in Euclidean space, characterising sets of lattices that are 'bounded' in a certain definite sense. Looked at another way, it explains the ways in which a lattice could degenerate (go off to infinity) in a sequence of lattic... | Mahler's compactness theorem | [
"Mathematics"
] | 381 | [
"Compactness theorems",
"Geometry of numbers",
"Theorems in topology",
"Theorems in number theory",
"Mathematical problems",
"Mathematical theorems",
"Number theory"
] |
636,555 | https://en.wikipedia.org/wiki/Fluvastatin | Fluvastatin is a member of the statin drug class, used to treat hypercholesterolemia and to prevent cardiovascular disease.
It was patented in 1982 and approved for medical use in 1994. It is on the World Health Organization's List of Essential Medicines.
Adverse effects
Adverse effects are comparable to other statin... | Fluvastatin | [
"Chemistry"
] | 850 | [
"Carboxylic acids",
"Functional groups"
] |
637,102 | https://en.wikipedia.org/wiki/Plant%20physiology | Plant physiology is a subdiscipline of botany concerned with the functioning, or physiology, of plants.
Plant physiologists study fundamental processes of plants, such as photosynthesis, respiration, plant nutrition, plant hormone functions, tropisms, nastic movements, photoperiodism, photomorphogenesis, circadian rhy... | Plant physiology | [
"Biology"
] | 4,337 | [
"Plant physiology",
"Plants",
"Branches of botany"
] |
637,240 | https://en.wikipedia.org/wiki/Round-trip%20engineering | Round-trip engineering (RTE) in the context of model-driven architecture is a functionality of software development tools that synchronizes two or more related software artifacts, such as, source code, models, configuration files, documentation, etc. between each other. The need for round-trip engineering arises when t... | Round-trip engineering | [
"Engineering"
] | 1,426 | [
"Reverse engineering"
] |
637,242 | https://en.wikipedia.org/wiki/Mokume-gane | is a Japanese metalworking procedure which produces a mixed-metal laminate with distinctive layered patterns; the term is also used to refer to the resulting laminate itself. The term translates closely to 'wood grain metal' or 'wood eye metal' and describes the way metal takes on the appearance of natural wood grain.... | Mokume-gane | [
"Physics",
"Chemistry"
] | 1,523 | [
"Composite materials",
"Materials",
"Chemical mixtures",
"Alloys",
"Matter"
] |
637,510 | https://en.wikipedia.org/wiki/Bipolar%20violation | A bipolar violation, bipolarity violation, or BPV, is a violation of the bipolar encoding rules where two pulses of the same polarity occur without an intervening pulse of the opposite polarity. This indicates an error in the transmission of the signal.
T-carrier and E-carrier signals are transmitted using a scheme c... | Bipolar violation | [
"Engineering"
] | 227 | [
"Error detection and correction",
"Reliability engineering"
] |
637,733 | https://en.wikipedia.org/wiki/Pockels%20effect | In optics, the Pockels effect, or Pockels electro-optic effect, is a directionally-dependent linear variation in the refractive index of an optical medium that occurs in response to the application of an electric field. It is named after the German physicist Friedrich Carl Alwin Pockels, who studied the effect in 189... | Pockels effect | [
"Physics"
] | 2,231 | [
"Polarization (waves)",
"Astrophysics"
] |
14,824,044 | https://en.wikipedia.org/wiki/Trace%20identity | In mathematics, a trace identity is any equation involving the trace of a matrix.
Properties
Trace identities are invariant under simultaneous conjugation.
Uses
They are frequently used in the invariant theory of matrices to find the generators and relations of the ring of invariants, and therefore are useful in a... | Trace identity | [
"Physics",
"Mathematics"
] | 130 | [
"Symmetry",
"Group actions",
"Invariant theory",
"Linear algebra",
"Algebra"
] |
365,001 | https://en.wikipedia.org/wiki/Hypnic%20jerk | A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment. Hypnic jerks are one form of invol... | Hypnic jerk | [
"Biology"
] | 1,073 | [
"Behavior",
"Sleep",
"Sleep disorders"
] |
365,262 | https://en.wikipedia.org/wiki/Parasitic%20drag | Parasitic drag, also known as profile drag, is a type of aerodynamic drag that acts on any object when the object is moving through a fluid. Parasitic drag is defined as the combination of form drag and skin friction drag.
It is named as such because it is not useful, in contrast with lift-induced drag which is create... | Parasitic drag | [
"Chemistry"
] | 941 | [
"Drag (physics)",
"Fluid dynamics"
] |
365,811 | https://en.wikipedia.org/wiki/Banach%E2%80%93Mazur%20game | In general topology, set theory and game theory, a Banach–Mazur game is a topological game played by two players, trying to pin down elements in a set (space). The concept of a Banach–Mazur game is closely related to the concept of Baire spaces. This game was the first infinite positional game of perfect information ... | Banach–Mazur game | [
"Mathematics"
] | 1,096 | [
"General topology",
"Topological games",
"Game theory",
"Topology",
"Determinacy"
] |
365,876 | https://en.wikipedia.org/wiki/Distribution%20function%20%28physics%29 | In molecular kinetic theory in physics, a system's distribution function is a function of seven variables, , which gives the number of particles per unit volume in single-particle phase space. It is the number of particles per unit volume having approximately the velocity near the position and time . The usual normal... | Distribution function (physics) | [
"Physics",
"Mathematics"
] | 404 | [
"Statistical mechanics stubs",
"Statistical mechanics",
"Mechanics",
"Dynamical systems"
] |
365,920 | https://en.wikipedia.org/wiki/Point-to-point%20%28telecommunications%29 | In telecommunications, a point-to-point connection refers to a communications connection between two communication endpoints or nodes. An example is a telephone call, in which one telephone is connected with one other, and what is said by one caller can only be heard by the other. This is contrasted with a point-to-m... | Point-to-point (telecommunications) | [
"Mathematics"
] | 790 | [
"Network topology",
"Topology"
] |
365,935 | https://en.wikipedia.org/wiki/Point-to-multipoint%20communication | In telecommunications, point-to-multipoint communication (P2MP, PTMP or PMP) is communication which is accomplished via a distinct type of one-to-many connection, providing multiple paths from a single location to multiple locations.
Point-to-multipoint telecommunications is typically used in wireless Internet and IP ... | Point-to-multipoint communication | [
"Mathematics",
"Technology",
"Engineering"
] | 630 | [
"Network topology",
"Wireless networking",
"Topology",
"Computer networks engineering"
] |
366,023 | https://en.wikipedia.org/wiki/Wear | Wear is the damaging, gradual removal or deformation of material at solid surfaces. Causes of wear can be mechanical (e.g., erosion) or chemical (e.g., corrosion). The study of wear and related processes is referred to as tribology.
Wear in machine elements, together with other processes such as fatigue and creep, cau... | Wear | [
"Chemistry",
"Materials_science",
"Engineering"
] | 2,824 | [
"Tribology",
"Materials science",
"Surface science",
"Mechanical engineering",
"Materials degradation"
] |
366,136 | https://en.wikipedia.org/wiki/Pontryagin%20duality | In mathematics, Pontryagin duality is a duality between locally compact abelian groups that allows generalizing Fourier transform to all such groups, which include the circle group (the multiplicative group of complex numbers of modulus one), the finite abelian groups (with the discrete topology), and the additive grou... | Pontryagin duality | [
"Mathematics"
] | 4,167 | [
"Theorems in mathematical analysis",
"Mathematical analysis",
"Mathematical structures",
"Category theory",
"Duality theories",
"Geometry",
"Mathematical problems",
"Mathematical theorems"
] |
366,208 | https://en.wikipedia.org/wiki/Typed%20lambda%20calculus | A typed lambda calculus is a typed formalism that uses the lambda-symbol () to denote anonymous function abstraction. In this context, types are usually objects of a syntactic nature that are assigned to lambda terms; the exact nature of a type depends on the calculus considered (see kinds below). From a certain point ... | Typed lambda calculus | [
"Mathematics"
] | 818 | [
"Mathematical structures",
"Logic in computer science",
"Mathematical logic",
"Mathematical objects",
"Type theory"
] |
366,555 | https://en.wikipedia.org/wiki/Biomolecule | A biomolecule or biological molecule is loosely defined as a molecule produced by a living organism and essential to one or more typically biological processes. Biomolecules include large macromolecules such as proteins, carbohydrates, lipids, and nucleic acids, as well as small molecules such as vitamins and hormones.... | Biomolecule | [
"Physics",
"Chemistry",
"Biology"
] | 2,979 | [
"Molecular physics",
"Natural products",
"Biochemistry",
"Molecules",
"Organic compounds",
"Physical objects",
"Biomolecules",
"Molecular biology",
"Structural biology",
"nan",
"Atoms",
"Matter"
] |
366,719 | https://en.wikipedia.org/wiki/Applied%20probability | Applied probability is the application of probability theory to statistical problems and other scientific and engineering domains.
Scope
Much research involving probability is done under the auspices of applied probability. However, while such research is motivated (to some degree) by applied problems, it is usually t... | Applied probability | [
"Mathematics"
] | 368 | [
"Applied mathematics",
"Applied probability"
] |
368,319 | https://en.wikipedia.org/wiki/Inertial%20electrostatic%20confinement | Inertial electrostatic confinement, or IEC, is a class of fusion power devices that use electric fields to confine the plasma rather than the more common approach using magnetic fields found in magnetic confinement fusion (MCF) designs. Most IEC devices directly accelerate their fuel to fusion conditions, thereby avoid... | Inertial electrostatic confinement | [
"Physics",
"Chemistry"
] | 5,262 | [
"Nuclear fusion",
"Fusion power",
"Plasma physics"
] |
368,389 | https://en.wikipedia.org/wiki/Ultrafiltration | Ultrafiltration (UF) is a variety of membrane filtration in which forces such as pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass thr... | Ultrafiltration | [
"Chemistry",
"Engineering",
"Environmental_science"
] | 3,521 | [
"Separation processes",
"Water treatment",
"Water pollution",
"Filtration techniques",
"Membrane technology",
"Filtration",
"Environmental engineering",
"Water technology"
] |
368,621 | https://en.wikipedia.org/wiki/Sphere%20packing | In geometry, a sphere packing is an arrangement of non-overlapping spheres within a containing space. The spheres considered are usually all of identical size, and the space is usually three-dimensional Euclidean space. However, sphere packing problems can be generalised to consider unequal spheres, spaces of other dim... | Sphere packing | [
"Physics",
"Chemistry",
"Materials_science",
"Mathematics",
"Engineering"
] | 2,861 | [
"Discrete mathematics",
"Packing problems",
"Discrete geometry",
"Materials science",
"Crystallography",
"Condensed matter physics",
"Mathematical problems"
] |
12,144,610 | https://en.wikipedia.org/wiki/Increment%20theorem | In nonstandard analysis, a field of mathematics, the increment theorem states the following: Suppose a function is differentiable at and that is infinitesimal. Then
for some infinitesimal , where
If then we may write
which implies that , or in other words that is infinitely close to , or is the standard part o... | Increment theorem | [
"Mathematics"
] | 239 | [
"Theorems in mathematical analysis",
"Theorems in calculus",
"Calculus",
"Mathematical objects",
"Infinity",
"Nonstandard analysis",
"Mathematics of infinitesimals",
"Model theory"
] |
12,146,395 | https://en.wikipedia.org/wiki/Proximity%20effect%20%28electromagnetism%29 | In electromagnetics, proximity effect is a redistribution of electric current occurring in nearby parallel electrical conductors carrying alternating current (AC), caused by magnetic effects. In adjacent conductors carrying AC current in the same direction, it causes the current in the conductor to concentrate on the ... | Proximity effect (electromagnetism) | [
"Physics"
] | 1,703 | [
"Electromagnetism",
"Physical phenomena",
"Fundamental interactions"
] |
12,146,531 | https://en.wikipedia.org/wiki/Proximity%20effect%20%28superconductivity%29 | Proximity effect or Holm–Meissner effect is a term used in the field of superconductivity to describe phenomena that occur when a superconductor (S) is placed in contact with a "normal" (N) non-superconductor. Typically the critical temperature of the superconductor is suppressed and signs of weak superconductivity a... | Proximity effect (superconductivity) | [
"Physics",
"Materials_science",
"Engineering"
] | 1,235 | [
"Physical quantities",
"Superconductivity",
"Materials science",
"Condensed matter physics",
"Electrical resistance and conductance"
] |
12,151,116 | https://en.wikipedia.org/wiki/C-myc%20mRNA | C-myc mRNA is a type of mRNA that serves as a template for the MYC protein which is implicated in the rapid growth of cancer cells. This mRNA is a topic of ongoing research to investigate the viability of preventing cancer growth by cleaving or degrading the c-myc mRNA.
See also
C-myc
References
RNA
Molecular biolog... | C-myc mRNA | [
"Chemistry",
"Biology"
] | 75 | [
"Biochemistry",
"Molecular biology"
] |
12,154,122 | https://en.wikipedia.org/wiki/GigaCrete | GigaCrete refers to a family of green building products based on proprietary non-silica, non-toxic, non-combustible, cementitious, mineral-based binders combined with filler material. GigaCrete building materials do not contain silica-based sands or Portland cement. GigaCrete products are manufactured by a privately he... | GigaCrete | [
"Physics",
"Engineering"
] | 1,566 | [
"Building engineering",
"Architecture",
"Construction",
"Materials",
"Matter",
"Building materials"
] |
8,998,654 | https://en.wikipedia.org/wiki/Killer-cell%20immunoglobulin-like%20receptor | Killer-cell immunoglobulin-like receptors (KIRs), are a family of type I transmembrane glycoproteins expressed on the plasma membrane of natural killer (NK) cells and a minority of T cells. In humans, they are encoded in the leukocyte receptor complex (LRC) on chromosome 19q13.4; the KIR region is approximately 150 kil... | Killer-cell immunoglobulin-like receptor | [
"Chemistry"
] | 4,503 | [
"Receptors",
"Signal transduction"
] |
8,998,943 | https://en.wikipedia.org/wiki/845%20%28vacuum%20tube%29 | The 845 power triode is a radio transmitting vacuum tube which can also be used as an audio amplifier and modulation tube. Typically, the plate is machined from solid graphite in order to accommodate high power dissipation (up to 100 watts) and voltage. Some current production 845 tubes have metal plates.
The 845 tube... | 845 (vacuum tube) | [
"Physics"
] | 162 | [
"Vacuum tubes",
"Vacuum",
"Matter"
] |
9,000,484 | https://en.wikipedia.org/wiki/Quantum%20amplifier | In physics, a quantum amplifier is an amplifier that uses quantum mechanical methods to amplify a signal; examples include the active elements of lasers and optical amplifiers.
The main properties of the quantum amplifier are its amplification coefficient and uncertainty. These parameters are not independent; the high... | Quantum amplifier | [
"Physics",
"Technology"
] | 1,207 | [
"Amplifiers",
"Quantum optics",
"Quantum mechanics"
] |
9,003,300 | https://en.wikipedia.org/wiki/Illumina%2C%20Inc. | Illumina, Inc. is an American biotechnology company, headquartered in San Diego, California. Incorporated on April 1, 1998, Illumina develops, manufactures, and markets integrated systems for the analysis of genetic variation and biological function. The company provides a line of products and services that serves the ... | Illumina, Inc. | [
"Chemistry",
"Materials_science",
"Biology"
] | 3,225 | [
"Biochemistry methods",
"Genetics techniques",
"Microtechnology",
"Microarrays",
"Bioinformatics",
"Molecular biology techniques",
"DNA sequencing"
] |
9,005,332 | https://en.wikipedia.org/wiki/Octadecanoid%20pathway | The octadecanoid pathway is a biosynthetic pathway for the production of the phytohormone jasmonic acid (JA), an important hormone for induction of defense genes. JA is synthesized from alpha-linolenic acid, which can be released from the plasma membrane by certain lipase enzymes. For example, in the wound defense resp... | Octadecanoid pathway | [
"Chemistry",
"Biology"
] | 192 | [
"Biochemistry",
"Biotechnology stubs",
"Biochemistry stubs",
"Metabolic pathways",
"Metabolism"
] |
9,007,520 | https://en.wikipedia.org/wiki/ISO/IEC%2080000 | ISO/IEC 80000, Quantities and units, is an international standard describing the International System of Quantities (ISQ). It was developed and promulgated jointly by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It serves as a style guide for using ph... | ISO/IEC 80000 | [
"Physics",
"Mathematics"
] | 2,230 | [
"Physical phenomena",
"Physical quantities",
"Quantity",
"Measurement",
"Size",
"Physical properties"
] |
17,672,471 | https://en.wikipedia.org/wiki/MIKE%20SHE | MIKE SHE is an integrated hydrological modelling system for building and simulating surface water flow and groundwater flow. MIKE SHE can simulate the entire land phase of the hydrologic cycle and allows components to be used independently and customized to local needs. MIKE SHE emerged from Système Hydrologique Euro... | MIKE SHE | [
"Physics",
"Chemistry",
"Engineering",
"Environmental_science"
] | 248 | [
"Hydrology",
"Chemical engineering",
"Physical systems",
"Hydraulics",
"Civil engineering",
"Environmental engineering",
"Hydraulic engineering"
] |
17,674,024 | https://en.wikipedia.org/wiki/HBT%20%28explosive%29 | {{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 412683567
| ImageFile = HBT.png
| ImageFile_Ref =
| ImageSize = 121
| ImageName = Skeletal formula of a minor tautomer of HBT
| Name = HBT
| IUPACName = ''N,N-Bis-(1H-tetrazol-5-yl)-hydrazine
| OtherNames = 1,2-Ditetrazolylhydrazine
5,5'-... | HBT (explosive) | [
"Chemistry"
] | 269 | [
"Explosive chemicals",
"Functional groups",
"Hydrazines"
] |
17,683,121 | https://en.wikipedia.org/wiki/High-integrity%20pressure%20protection%20system | A high-integrity pressure protection system (HIPPS) is a type of safety instrumented system (SIS) designed to prevent over-pressurization of a plant, such as a chemical plant or oil refinery. The HIPPS will shut off the source of the high pressure before the design pressure of the system is exceeded, thus preventing lo... | High-integrity pressure protection system | [
"Chemistry",
"Engineering"
] | 1,435 | [
"Systems engineering",
"Explosion protection",
"Safety engineering",
"Combustion engineering",
"Process safety",
"Explosions",
"Chemical process engineering"
] |
184,570 | https://en.wikipedia.org/wiki/Microbotics | Microbotics (or microrobotics) is the field of miniature robotics, in particular mobile robots with characteristic dimensions less than 1 mm. The term can also be used for robots capable of handling micrometer size components.
History
Microbots were born thanks to the appearance of the microcontroller in the last deca... | Microbotics | [
"Materials_science",
"Engineering"
] | 2,758 | [
"Microtechnology",
"Materials science",
"Automation",
"Robotics",
"Micro robots"
] |
184,726 | https://en.wikipedia.org/wiki/Heat%20transfer | Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase chan... | Heat transfer | [
"Physics",
"Chemistry",
"Engineering"
] | 7,449 | [
"Transport phenomena",
"Physical phenomena",
"Heat transfer",
"Applied and interdisciplinary physics",
"Unit operations",
"Chemical engineering",
"Thermodynamics",
"Mechanical engineering",
"nan",
"Chemical process engineering"
] |
184,873 | https://en.wikipedia.org/wiki/Potassium%20ferricyanide | Potassium ferricyanide is the chemical compound with the formula K3[Fe(CN)6]. This bright red salt contains the octahedrally coordinated [Fe(CN)6]3− ion. It is soluble in water and its solution shows some green-yellow fluorescence. It was discovered in 1822 by Leopold Gmelin.
Preparation
Potassium ferricyanide is manu... | Potassium ferricyanide | [
"Chemistry"
] | 1,415 | [
"Redox",
"Oxidizing agents"
] |
185,239 | https://en.wikipedia.org/wiki/Thermal%20radiation | Thermal radiation is electromagnetic radiation emitted by the thermal motion of particles in matter. All matter with a temperature greater than absolute zero emits thermal radiation. The emission of energy arises from a combination of electronic, molecular, and lattice oscillations in a material. Kinetic energy is conv... | Thermal radiation | [
"Physics",
"Chemistry",
"Mathematics"
] | 6,631 | [
"Transport phenomena",
"Scalar physical quantities",
"Temperature",
"Heat transfer",
"Physical phenomena",
"Spectrum (physical sciences)",
"Physical quantities",
"Thermodynamic properties",
"Electromagnetic radiation",
"SI base quantities",
"Intensive quantities",
"Electromagnetic spectrum",
... |
185,259 | https://en.wikipedia.org/wiki/Germ%20theory%20of%20disease | The germ theory of disease is the currently accepted scientific theory for many diseases. It states that microorganisms known as pathogens or "germs" can cause disease. These small organisms, which are too small to be seen without magnification, invade humans, other animals, and other living hosts. Their growth and rep... | Germ theory of disease | [
"Chemistry",
"Biology"
] | 4,316 | [
"Microbiology",
"Biology theories",
"Microscopy"
] |
185,384 | https://en.wikipedia.org/wiki/Quetiapine | Quetiapine, sold under the brand name Seroquel among others, is an atypical antipsychotic medication used in the treatment of schizophrenia, bipolar disorder, bipolar depression, and major depressive disorder. Despite being widely prescribed as a sleep aid due to its tranquillizing effects, the benefits of such use may... | Quetiapine | [
"Chemistry",
"Biology"
] | 4,897 | [
"Hypnotics",
"Behavior",
"Functional groups",
"Organic compounds",
"Ethers",
"Sleep"
] |
185,427 | https://en.wikipedia.org/wiki/Function%20%28mathematics%29 | In mathematics, a function from a set to a set assigns to each element of exactly one element of . The set is called the domain of the function and the set is called the codomain of the function.
Functions were originally the idealization of how a varying quantity depends on another quantity. For example, the pos... | Function (mathematics) | [
"Mathematics"
] | 9,232 | [
"Functions and mappings",
"Mathematical analysis",
"Mathematical objects",
"Elementary mathematics",
"Basic concepts in set theory",
"Mathematical relations"
] |
185,732 | https://en.wikipedia.org/wiki/Quantum%20decoherence | Quantum decoherence is the loss of quantum coherence. Quantum decoherence has been studied to understand how quantum systems convert to systems which can be explained by classical mechanics. Beginning out of attempts to extend the understanding of quantum mechanics, the theory has developed in several directions and... | Quantum decoherence | [
"Physics"
] | 7,618 | [
"Quantum measurement",
"Quantum mechanics"
] |
185,748 | https://en.wikipedia.org/wiki/Metalloprotein | Metalloprotein is a generic term for a protein that contains a metal ion cofactor. A large proportion of all proteins are part of this category. For instance, at least 1000 human proteins (out of ~20,000) contain zinc-binding protein domains although there may be up to 3000 human zinc metalloproteins.
Abundance
It is ... | Metalloprotein | [
"Chemistry",
"Biology"
] | 4,306 | [
"Medicinal inorganic chemistry",
"Medicinal chemistry",
"Biochemistry",
"Metalloproteins",
"Bioinorganic chemistry"
] |
186,262 | https://en.wikipedia.org/wiki/Belousov%E2%80%93Zhabotinsky%20reaction | A Belousov–Zhabotinsky reaction, or BZ reaction, is one of a class of reactions that serve as a classical example of non-equilibrium thermodynamics, resulting in the establishment of a nonlinear chemical oscillator. The only common element in these oscillators is the inclusion of bromine and an acid. The reactions are ... | Belousov–Zhabotinsky reaction | [
"Chemistry",
"Mathematics"
] | 1,469 | [
"Clock reactions",
"Non-equilibrium thermodynamics",
"Name reactions",
"Chemical kinetics",
"Dynamical systems"
] |
186,351 | https://en.wikipedia.org/wiki/In-situ%20conservation | In-situ conservation is the on-site conservation or the conservation of genetic resources in natural populations of plant or animal species, such as forest genetic resources in natural populations of tree species. This process protects the inhabitants and ensures the sustainability of the environment and ecosystem.
It... | In-situ conservation | [
"Chemistry",
"Engineering",
"Biology"
] | 1,560 | [
"Environmental design",
"Ecological restoration",
"Environmental engineering",
"Design",
"Conservation biology"
] |
186,497 | https://en.wikipedia.org/wiki/Mefloquine | Mefloquine, sold under the brand name Lariam among others, is a medication used to prevent or treat malaria. When used for prevention it is typically started before potential exposure and continued for several weeks after potential exposure. It can be used to treat mild or moderate malaria but is not recommended for se... | Mefloquine | [
"Physics",
"Chemistry",
"Biology"
] | 2,562 | [
"Pharmacology",
"Racemic mixtures",
"Origin of life",
"Stereochemistry",
"Drug safety",
"Chirality",
"Chemical mixtures",
"Asymmetry",
"Biochemistry",
"Symmetry",
"Biological hypotheses"
] |
187,185 | https://en.wikipedia.org/wiki/Calmodulin | Calmodulin (CaM) (an abbreviation for calcium-modulated protein) is a multifunctional intermediate calcium-binding messenger protein expressed in all eukaryotic cells. It is an intracellular target of the secondary messenger Ca2+, and the binding of Ca2+ is required for the activation of calmodulin. Once bound to Ca2+,... | Calmodulin | [
"Chemistry",
"Biology"
] | 3,655 | [
"Biochemistry",
"Neurochemistry",
"Calcium signaling",
"Signal transduction"
] |
7,478,096 | https://en.wikipedia.org/wiki/Nuclear%20pharmacy | Nuclear pharmacy, also known as radiopharmacy, involves preparation of radioactive materials for patient administration that will be used to diagnose and treat specific diseases in nuclear medicine. It generally involves the practice of combining a radionuclide tracer with a pharmaceutical component that determines the... | Nuclear pharmacy | [
"Physics",
"Chemistry"
] | 801 | [
"Pharmacology",
"Applied and interdisciplinary physics",
"Medical physics",
"Pharmacy"
] |
7,479,239 | https://en.wikipedia.org/wiki/Implicit%20solvation | Implicit solvation (sometimes termed continuum solvation) is a method to represent solvent as a continuous medium instead of individual “explicit” solvent molecules, most often used in molecular dynamics simulations and in other applications of molecular mechanics. The method is often applied to estimate free energy o... | Implicit solvation | [
"Physics",
"Chemistry"
] | 3,199 | [
"Molecular physics",
"Computational physics",
"Molecular dynamics",
"Computational chemistry",
"Theoretical chemistry",
"Molecular modelling",
"Structural biology",
"Protein structure"
] |
7,480,035 | https://en.wikipedia.org/wiki/Machine%20Age | The Machine Age is an era that includes the early-to-mid 20th century, sometimes also including the late 19th century. An approximate dating would be about 1880 to 1945. Considered to be at its peak in the time between the first and second world wars, the Machine Age overlaps with the late part of the Second Industrial... | Machine Age | [
"Physics",
"Technology",
"Engineering"
] | 708 | [
"Machines",
"Science and technology studies",
"Physical systems",
"Mechanical engineering",
"History of technology",
"History of science and technology"
] |
7,482,029 | https://en.wikipedia.org/wiki/Completely%20distributive%20lattice | In the mathematical area of order theory, a completely distributive lattice is a complete lattice in which arbitrary joins distribute over arbitrary meets.
Formally, a complete lattice L is said to be completely distributive if, for any doubly indexed family
{xj,k | j in J, k in Kj} of L, we have
where F is the set... | Completely distributive lattice | [
"Mathematics"
] | 630 | [
"Order theory"
] |
7,482,797 | https://en.wikipedia.org/wiki/Morphism%20of%20schemes | In algebraic geometry, a morphism of schemes generalizes a morphism of algebraic varieties just as a scheme generalizes an algebraic variety. It is, by definition, a morphism in the category of schemes.
A morphism of algebraic stacks generalizes a morphism of schemes.
Definition
By definition, a morphism of schemes ... | Morphism of schemes | [
"Mathematics"
] | 3,414 | [
"Fields of abstract algebra",
"Algebraic geometry"
] |
7,483,985 | https://en.wikipedia.org/wiki/Atkin%E2%80%93Lehner%20theory | In mathematics, Atkin–Lehner theory is part of the theory of modular forms describing when they arise at a given integer level N in such a way that the theory of Hecke operators can be extended to higher levels.
Atkin–Lehner theory is based on the concept of a newform, which is a cusp form 'new' at a given level N, w... | Atkin–Lehner theory | [
"Mathematics"
] | 918 | [
"Modular forms",
"Number theory"
] |
7,484,936 | https://en.wikipedia.org/wiki/Odyssey%20Space%20Research | Odyssey Space Research, LLC is a small business based in Houston, Texas near NASA Lyndon B. Johnson Space Center providing engineering research and analysis services. This start-up in the space industry founded in November 2003 has already won major contracts and is the only private company working on the 5 next human-... | Odyssey Space Research | [
"Astronomy",
"Engineering"
] | 410 | [
"Outer space",
"Aerospace engineering organizations",
"Aeronautics organizations",
"Astronomy stubs",
"Aerospace engineering",
"Outer space stubs"
] |
7,485,092 | https://en.wikipedia.org/wiki/Montipora | Montipora is a genus of Scleractinian corals in the phylum Cnidaria. Members of the genus Montipora may exhibit many different growth morphologies. With eighty five known species, Montipora is the second most species rich coral genus after Acropora.
Description
Growth morphologies for the genus Montipora include subm... | Montipora | [
"Biology"
] | 1,480 | [
"Biogeomorphology",
"Coral reefs"
] |
64,972 | https://en.wikipedia.org/wiki/Angiogenesis | Angiogenesis is the physiological process through which new blood vessels form from pre-existing vessels, formed in the earlier stage of vasculogenesis. Angiogenesis continues the growth of the vasculature mainly by processes of sprouting and splitting, but processes such as coalescent angiogenesis, vessel elongation a... | Angiogenesis | [
"Biology"
] | 5,021 | [
"Angiogenesis"
] |
65,041 | https://en.wikipedia.org/wiki/Singleton%20pattern | In object-oriented programming, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance. It is one of the well-known "Gang of Four" design patterns, which describe how to solve recurring problems in object-oriented software. The pattern is useful when exactl... | Singleton pattern | [
"Technology"
] | 1,143 | [
"Anti-patterns"
] |
65,132 | https://en.wikipedia.org/wiki/Inverted%20repeat | An inverted repeat (or IR) is a single stranded sequence of nucleotides followed downstream by its reverse complement. The intervening sequence of nucleotides between the initial sequence and the reverse complement can be any length including zero. For example, is an inverted repeat sequence. When the intervening leng... | Inverted repeat | [
"Chemistry",
"Biology"
] | 3,094 | [
"Biochemistry",
"Molecular genetics",
"Repetitive DNA sequences",
"Molecular biology"
] |
65,184 | https://en.wikipedia.org/wiki/QNX | QNX ( or ) is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market.
The product was originally developed in the early 1980s by Canadian company Quantum Software Systems, founded March 30, 1980, and later renamed QNX Software Systems.
, it is used in a variety of devices in... | QNX | [
"Technology"
] | 3,291 | [
"Computing platforms",
"Real-time computing",
"Real-time operating systems"
] |
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