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Turing machine examples Turing's very first example Turing_machine_examples > Turing's very first example For example, suppose his tape was not initially blank. What would happen? The Turing machine would read different values than the intended values.
Structure constant Summary Structure_constants Given the structure constants, the resulting product is obtained by bilinearity and can be uniquely extended to all vectors in the vector space, thus uniquely determining the product for the algebra. Structure constants are used whenever an explicit form for the algebra mu...
Ostrich meat System overview Struthio_camelus > Physiology > Osmoregulation > System overview The coprodeum and cloaca are the main osmoregulatory mechanisms used for the regulation and reabsorption of ions and water, or net water conservation. As expected in a species inhabiting arid regions, dehydration causes a redu...
Magnetometer (Juno) Summary Magnetometer_(Juno) Magnetometer (MAG) is an instrument suite on the Juno orbiter for planet Jupiter. The MAG instrument includes both the Fluxgate Magnetometer (FGM) and Advanced Stellar Compass (ASC) instruments. There two sets of MAG instrument suites, and they are both positioned on the ...
Autoimmune hemolytic anemia Summary Autoimmune_haemolytic_anemia Autoimmune hemolytic anemia (AIHA) occurs when antibodies directed against the person's own red blood cells (RBCs) cause them to burst (lyse), leading to an insufficient number of oxygen-carrying red blood cells in the circulation. The lifetime of the RBC...
Liddle's syndrome Cause Liddle's_syndrome > Cause Specifically, the PY motif in the protein is deleted or altered so the E3 ligase (Nedd4) no longer recognizes the channel. This loss of ability to be degraded leads to high amounts of the channel being chronically present on the apical membrane of the epithelial cells t...
D electron count Possible d electron counts D_electron_count > Possible d electron counts There are many examples of every possible d electron configuration. What follows is a short description of common geometries and characteristics of each possible d electron count and representative examples. d0 Commonly tetrahedra...
Neuroactive steroids Function Neuroactive_steroid > Function Some major known biological functions of neurosteroids include modulation of neural plasticity, learning and memory processes, behavior, and seizure susceptibility, as well as responses to stress, anxiety, and depression. Neurosteroids also appear to play an ...
Adaptive immunity Passive memory Acquired_resistance > Immunological memory > Passive memory Passive memory is usually short-term, lasting between a few days and several months. Newborn infants have had no prior exposure to microbes and are particularly vulnerable to infection. Several layers of passive protection are ...
Transition metal complexes of 2,2'-bipyridine Summary Transition_metal_complexes_of_2,2'-bipyridine Transition metal complexes of 2,2'-bipyridine are coordination complexes containing one or more 2,2'-bipyridine ligands. Complexes have been described for all of the transition metals. Although few have any practical val...
Mental processing Artificial intelligence Mental_content > Non-human > Artificial intelligence In 1950 Alan M. Turing published "Computing machinery and intelligence" in Mind, in which he proposed that machines could be tested for intelligence using questions and answers. This process is now named the Turing Test. The ...
Disequilibrium (thermodynamics) Basic concepts Non-equilibrium_thermodynamics > Basic concepts There are many examples of stationary non-equilibrium systems, some very simple, like a system confined between two thermostats at different temperatures or the ordinary Couette flow, a fluid enclosed between two flat walls m...
Chemical function Table of common functional groups Chemical_function > Table of common functional groups The following is a list of common functional groups. In the formulas, the symbols R and R' usually denote an attached hydrogen, or a hydrocarbon side chain of any length, but may sometimes refer to any group of ato...
List of file systems Distributed fault-tolerant file systems List_of_file_systems > Distributed file systems > Distributed fault-tolerant file systems Scality is a distributed fault-tolerant filesystem. Tahoe-LAFS is an open source secure, decentralized, fault-tolerant filesystem utilizing encryption as the basis for a...
Effects of climate change on plant biodiversity Modern context Effects_of_climate_change_on_plant_biodiversity > Modern context There is significant current interest and research focus on the phenomenon of recent anthropogenic climate changes, or global warming. Focus is on identifying the current impacts of climate ch...
Liver insufficiency Liver diseases Liver_dysfunction > Liver diseases Analogous terms such as "drug-induced" or "toxic" liver disease are also used to refer to disorders caused by various drugs. Fatty liver disease (hepatic steatosis) is a reversible condition where large vacuoles of triglyceride fat accumulate in live...
Fixed point iteration Attracting fixed points Fixed_point_iteration > Attracting fixed points It eventually converges to the Dottie number (about 0.739085133), which is a fixed point. That is where the graph of the cosine function intersects the line y = x {\displaystyle y=x} .Not all fixed points are attracting. For e...
Kepler-277b Orbit Kepler-277b > Characteristics > Orbit Kepler-277b orbits close to its host star, with one orbit lasting 17.324 days. Its semi-major axis, or average distance from the parent object, is about 0.136 AU. For comparison, the planet Mercury in the Solar System takes 88 days to orbit at a distance of 0.38 A...
Control zone Summary Control_zone They can be observed to be usually rectangular, extending along the axis of the main runway, although irregular shapes may be used where more complex airspace dictates this (see Liverpool and East Midlands). A control area (CTA) is often placed between a CTR and nearby airways to give ...
International School of Information Management Workshops International_School_of_Information_Management > ISiM events / academic activities > Workshops Workshop on Machine Learning (April 2008): Focusing on introducing the basic techniques of Machine Learning, its major areas of application and providing hands on exper...
Salen ligand Synthesis and properties Salen_ligand > Synthesis and properties H2salen may be synthesized by the condensation of ethylenediamine and salicylaldehyde. Complexes of salen with metal cations may be made without isolating it from the reaction mixture. This is possible because the stability constant for the f...
Renal ultrasonograph Hydronephrosis Renal_ultrasonography > Hydronephrosis One of the primary indications for referral to US evaluation of the kidneys is evaluation of the urinary collecting system. Enlargement of the urinary collecting system is usually related to urinary obstruction and can include the pelvis, the ca...
Isaac Newton Summary Isaac_Newton He demonstrated that the motion of objects on Earth and celestial bodies could be accounted for by the same principles. Newton's inference that the Earth is an oblate spheroid was later confirmed by the geodetic measurements of Maupertuis, La Condamine, and others, convincing most Euro...
Fixed point iteration Attracting fixed points Fixed_point_iteration > Attracting fixed points We say that the fixed point of f ( x ) = 2 x {\displaystyle f(x)=2x} is repelling. An attracting fixed point is said to be a stable fixed point if it is also Lyapunov stable. A fixed point is said to be a neutrally stable fixe...
Cerebellar vermis Summary Cerebellar_vermis The cerebellar vermis (from Latin vermis, "worm") is located in the medial, cortico-nuclear zone of the cerebellum, which is in the posterior fossa of the cranium. The primary fissure in the vermis curves ventrolaterally to the superior surface of the cerebellum, dividing it ...
Metal carbonyl Infrared spectra Carbonyl_ligand > Analytical characterization > Infrared spectra The number of IR-observable vibrational modes for some metal carbonyls are shown in the table. Exhaustive tabulations are available. These rules apply to metal carbonyls in solution or the gas phase. Low-polarity solvents a...
Johannes Kepler Mysterium Cosmographicum Johannes_Kepler > Astronomy > Mysterium Cosmographicum Mysterium was published late in 1596, and Kepler received his copies and began sending them to prominent astronomers and patrons early in 1597; it was not widely read, but it established Kepler's reputation as a highly skill...
System development methodology Rapid application development Software_Process > Methodologies > Rapid application development In the next stage, requirements are verified using prototyping, eventually to refine the data and process models. These stages are repeated iteratively; further development results in "a combine...
Hole argument Disputing the above version of Einstein's hole argument Hole_argument > Disputing the above version of Einstein's hole argument Einstein's derivation of the gravitational field equations was delayed because of the hole argument which he created in 1913. However the problem was not as given in the section ...
Subformula property Summary Subformula_property Proof theory is a major branch of mathematical logic and theoretical computer science within which proofs are treated as formal mathematical objects, facilitating their analysis by mathematical techniques. Proofs are typically presented as inductively-defined data structu...
Admissible rule Decidability and reduced rules Admissible_rule > Decidability and reduced rules The basic question about admissible rules of a given logic is whether the set of all admissible rules is decidable. Note that the problem is nontrivial even if the logic itself (i.e., its set of theorems) is decidable: the d...
Context-free languages Closure properties Context_free_language > Properties > Closure properties The class of context-free languages is closed under the following operations. That is, if L and P are context-free languages, the following languages are context-free as well: the union L ∪ P {\displaystyle L\cup P} of L a...
Electrical units Electric current Electric_system > Concepts > Electric current That water could be decomposed by the current from a voltaic pile was discovered by Nicholson and Carlisle in 1800, a process now known as electrolysis. Their work was greatly expanded upon by Michael Faraday in 1833. Current through a resi...
Symmetry in mathematics Integrating Mathematical_symmetry > Symmetry in calculus > Integrating The integral of an odd function from −A to +A is zero, provided that A is finite and that the function is integrable (e.g., has no vertical asymptotes between −A and A).The integral of an even function from −A to +A is twice ...
Deadwood Formation Environment of deposition Deadwood_Formation > Environment of deposition In most areas the sediments of the Deadwood Formation were deposited in near shore, shallow water environments as an ancient sea advanced across the exposed and weathered landscape of Precambrian rocks. Most of the conglomerates...
Interpersonal relationship Power and dominance Interpersonal_relationship > Power and dominance A power structure describes power and dominance relationships in a larger society. For example, a feudal society under a monarchy exhibits a strong dominance hierarchy in both economics and physical power, whereas dominance ...
Adaptive learning Student model Adaptive_learning > Technology and methodology > Student model A large pool of questions is amassed and rated according to difficulty, through expert analysis, experimentation, or a combination of the two. The computer then performs what is essentially a binary search, always giving the ...
Turing degree Monographs and survey articles (graduate level) Recursively_enumerable_Turing_degree > References > Monographs and survey articles (graduate level) ISBN 978-0-444-87295-1. MR 0982269. Odifreddi, Piergiorgio (1999).
Taylor approximation Derivation for the integral form of the remainder Taylor's_Theorem > Proofs > Derivation for the integral form of the remainder Due to absolute continuity of f ( k ) {\displaystyle f^{(k)}} on the closed interval between a {\textstyle a} and x {\textstyle x} its derivative f ( k + 1 ) {\displaystyl...
GPS/INS Applications GPS/INS > Applications GPS/INS is commonly used on aircraft for navigation purposes. Using GPS/INS allows for smoother position and velocity estimates that can be provided at a sampling rate faster than the GPS receiver. This also allows for accurate estimation of the aircraft attitude (roll, pitch...
Author-level metric Field-weighted Citation Impact Author-level_metrics > List of metrics > Field-weighted Citation Impact Field-weighted Citation Impact (FWCI) is an author-level metric introduced and applied by Scopus SciVal. FWCI equals to the total citations actually received divided by the total citations that wou...
Binomial options model Use of the model Binomial_options_pricing_model > Use of the model Although computationally slower than the Black–Scholes formula, it is more accurate, particularly for longer-dated options on securities with dividend payments. For these reasons, various versions of the binomial model are widely ...
Glossary of chemistry terms C Glossary_of_chemistry_terms > C conjugate acid conjugate base conjugated system A molecule that contains double or triple bonds separated by one single bond; e.g. the compound buta-1,3-diene, with the chemical structure H2C=CH−CH=CH2, has conjugated double bonds. In such molecules, there i...
Central tendency Measures Measure_of_central_tendency > Measures Generalized mean A generalization of the Pythagorean means, specified by an exponent. Geometric mean the nth root of the product of the data values, where there are n of these. This measure is valid only for data that are measured absolutely on a strictly...
Closed circuit rebreather General concept Closed_circuit_breathing_apparatus > General concept As a person breathes, the body consumes oxygen and produces carbon dioxide. Base metabolism requires about 0.25 L/min of oxygen from a breathing rate of about 6 L/min, and a fit person working hard may ventilate at a rate of ...
Wallerian degeneration Clearance in PNS Wallerian_degeneration > Myelin clearance > Clearance in PNS The recruitment of macrophages helps improve the clearing rate of myelin debris. The resident macrophages present in the nerves release further chemokines and cytokines to attract further macrophages. The degenerating n...
Discriminant Conic sections Discriminant_of_a_polynomial > Generalizations > Conic sections {\displaystyle ax^{2}+2bxy+cy^{2}+2dxz+2eyz+fz^{2}=0.} Its discriminant is the determinant | a b d b c e d e f | . {\displaystyle {\begin{vmatrix}a&b&d\\b&c&e\\d&e&f\end{vmatrix}}.}
Explorer 61 Spacecraft Explorer_61 > Spacecraft The magnetometers were deployed after launch to a position 6 m (20 ft) behind the spacecraft. At this distance, the influence of magnetic materials from the instrument and base module (chiefly from the star cameras) was less than 1 mT. Sixteen complete vector magnetic fie...
Glossary of areas of mathematics A Glossary_of_areas_of_mathematics > A Analytic geometry 1. Also known as Cartesian geometry, the study of Euclidean geometry using Cartesian coordinates. 2.
Lie Group Topological definition Matrix_Lie_group > Definitions and examples > Topological definition A Lie group can be defined as a (Hausdorff) topological group that, near the identity element, looks like a transformation group, with no reference to differentiable manifolds. First, we define an immersely linear Lie ...
The Variable Summary The_Variable The episode was written by executive producers Edward Kitsis and Adam Horowitz and directed by Paul Edwards. It serves as a companion piece to the season four episode "The Constant", another episode that heavily features the character Daniel, and the third Lost episode to deal directly...
Gearbox bicycle Methods Gearbox_bicycle > Methods At least three different gearing techniques have been employed. Epicyclic gears, as in hub gears. Spur gears, as in most automobile transmissions. Derailleur gears, as on many bicycles, but fully enclosed.
Cognitive semantics Points of contrast Cognitive_semantics > Points of contrast Lexical units can be understood as holding meaning either by virtue of set of things they may apply to (called the "extension" of the word), or in terms of the common properties that hold between these things (called its "intension"). The i...
Mountain car problem Introduction Mountain_car_problem > Introduction The mountain car problem, although fairly simple, is commonly applied because it requires a reinforcement learning agent to learn on two continuous variables: position and velocity. For any given state (position and velocity) of the car, the agent is...
Upwelling current Other sources Upwelling_current > Types > Coastal > Other sources For example when a tropical cyclone transits an area, usually when moving at speeds of less than 5 mph (8 km/h). The cyclonic winds cause a divergence in the surface water in the Ekman layer, that turn requires upwelling of deeper water...
Electrical engineering Control engineering Electrical_engineering > Subfields > Control engineering It also plays an important role in industrial automation. Control engineers often use feedback when designing control systems. For example, in an automobile with cruise control the vehicle's speed is continuously monitor...
Adverse reaction to cytokines Summary Recombinant_cytokine Cytokines are produced by a broad range of cells, including immune cells like macrophages, B lymphocytes, T lymphocytes and mast cells, as well as endothelial cells, fibroblasts, and various stromal cells; a given cytokine may be produced by more than one type ...
Pattern recognition receptor TLR signaling Cytoplasmic_PRR > PRR types and signaling > Toll-like receptors (TLR) > TLR signaling The signaling complex reacts with TRAF6 which leads to TAK1 activation and consequently the induction of inflammatory cytokines. The TRIF-dependent pathway is induced by macrophages and DCs a...
Fluid Physics Fluid > Physics Fluids display properties such as: lack of resistance to permanent deformation, resisting only relative rates of deformation in a dissipative, frictional manner, and the ability to flow (also described as the ability to take on the shape of the container).These properties are typically a f...
Neurological examination Patient's history Neurological_examination > Patient's history The interval of a complaint is important as it can help aid the diagnosis. For example, vascular disorders (such as strokes) occur very frequently over minutes or hours, whereas chronic disorders (such as Alzheimer's disease) occur ...
Gradient descent Summary Steepest_descent In mathematics, gradient descent (also often called steepest descent) is a first-order iterative optimization algorithm for finding a local minimum of a differentiable function. The idea is to take repeated steps in the opposite direction of the gradient (or approximate gradien...
Hopf algebra Group-like elements Hopf_algebras > Formal definition > Group-like elements A group-like element is a nonzero element x such that Δ(x) = x⊗x. The group-like elements form a group with inverse given by the antipode. A primitive element x satisfies Δ(x) = x⊗1 + 1⊗x.
Cross-bridge cycle Sliding filament theory Cross-bridge_cycle > Vertebrate > Skeletal muscle > Sliding filament theory The sliding filament theory describes a process used by muscles to contract. It is a cycle of repetitive events that cause a thin filament to slide over a thick filament and generate tension in the mus...
Machine learning in video games OpenAI Five Machine_learning_in_video_games > Deep learning agents > Dota 2 > OpenAI Five OpenAI Five utilized separate LSTM networks to learn each hero. It trained using a reinforcement learning technique known as Proximal Policy Learning running on a system containing 256 GPUs and 128,...
Addition to pi ligands Rule 3 Addition_to_pi_ligands > Rule 3 L n − M δ + − C ≡ O δ + {\displaystyle {\ce {L_{\mathit {n}}-{}}}{\overset {\color {Red}\delta +}{\ce {M}}}{\ce {-C#}}{\overset {\color {Red}\delta +}{\ce {O}}}} Incoming nucleophilic attack happens at one of the termini of the π-system in the figure below: ...
Adversarial Design Summary Adversarial_Design Adversarial Design is a type of political design that evokes and engages political issues. In doing so, the cultural production of Adversarial Design crosses all disciplinary boundaries in the construction of objects, interfaces, networks, spaces and events. Most importantl...
Coronary artery bypass graft Post-operative care Coronary_artery_bypass > Post-operative care After the procedure, the patient is usually transferred to the intensive care unit (ICU), where intubations are removed if not already done in the operating theater. They usually exit the ICU by the following day, and four day...
Bacterioplankton Photosynthetic bacterioplankton Bacterioplankton > Major groups > Photosynthetic bacterioplankton Green bacteria have different light harvesting pigments consisting of bacteriochlorophyll c, d and e. These organisms do not produce oxygen through photosynthesis or use water as a reducing agent. Many of ...
Parkinson disease The neuroimmune connection Parkinson_disease > Pathophysiology > The neuroimmune connection Mast cell degranulation and subsequent proinflammatory cytokine release is implicated in BBB breakdown in PD. Another immune cell implicated in PD are peripheral monocytes and have been found in the substantia ...
Esterase Summary Esterase An esterase is a hydrolase enzyme that splits esters into an acid and an alcohol in a chemical reaction with water called hydrolysis. A wide range of different esterases exist that differ in their substrate specificity, their protein structure, and their biological function.
Indentation size effect Summary Indentation_size_effect The indentation size effect (ISE) is the observation that hardness tends to increase as the indent size decreases at small scales. When an indent (any small mark, but usually made with a special tool) is created during material testing, the hardness of the materia...
Measurable function Notable classes of measurable functions Measurable_function > Notable classes of measurable functions Random variables are by definition measurable functions defined on probability spaces. If ( X , Σ ) {\displaystyle (X,\Sigma )} and ( Y , T ) {\displaystyle (Y,T)} are Borel spaces, a measurable fun...
Variable value stamp Summary Variable_value_stamp A variable value stamp, is a gummed or self-adhesive postage stamp of a common design, issued by a machine similar to an automatic teller machine (ATM), with a value of the user's choice printed at the time the stamp is dispensed. The value may be variable or from a fix...
Immunological memory Memory B cells Immunological_memory > Adaptive immune memory > Memory B cells Memory B cells are plasma cells that are able to produce antibodies for a long time. Unlike the naive B cells involved in the primary immune response the memory B cell response is slightly different. The memory B cell has...
Graphical notation (music) Characteristics Graphic_notation_(music) > Characteristics Graphic notation is characterized by its variability and lack of standardization. According to Baker's Student Encyclopedia of Music, Vol. 1, "Graphic notation is used to indicate extremely precise (or intentionally imprecise) pitch o...
Deterministic simulation Model translation Deterministic_simulation > Use of simulations > Model translation It is necessary to translate models into computer recognizable formats. The modeler must decide if whether to program the model in a simulation language such as GPSS/H or to use special purpose simulation softwa...
Power electronics Smart grid Power_electronics > Applications > Smart grid A smart grid is a modernized electrical grid that uses information and communications technology to gather and act on information, such as information about the behaviors of suppliers and consumers, in an automated fashion to improve the efficie...
Weird machine Mitigation Weird_machine > Mitigation Two central categories of mitigation to the problems caused by weird machine functionality include input validation within the software and protecting against problems arising from the platform on which the program runs, such as memory errors. Input validation aims to...
Off-the-grid Solar photovoltaics Off-the-grid > Energy > Electrical power > Solar photovoltaics Solar photovoltaics (PV), which use energy from the sun, are one of the most popular energy solutions for off-grid buildings. PV arrays (solar panels) allow for energy from the sun to be converted into electrical energy. PV ...
Basis of a vector space Example Basis_vector > Related notions > Analysis > Example In the study of Fourier series, one learns that the functions {1} ∪ { sin(nx), cos(nx): n = 1, 2, 3, ... } are an "orthogonal basis" of the (real or complex) vector space of all (real or complex valued) functions on the interval that a...
Ground loop (electricity) Sources of ground current Ground_potential > Common ground loops > Sources of ground current The diagram shows leakage current from an appliance such as an electric motor A flowing through the building's ground system G to the neutral wire at the utility ground bonding point at the service pan...
Electronic Hamiltonian Summary Electronic_Hamiltonian From it are missing a number of small terms, most of which are due to electronic and nuclear spin. Although it is generally assumed that the solution of the time-independent Schrödinger equation associated with the Coulomb Hamiltonian will predict most properties of...
Autonomous research robot Outdoor operation Autonomous_research_robot > Autonomous navigation techniques > Outdoor operation Outdoors, localization is primarily handled with GPS, however, satellite signals can frequently be lost due to obstructions. Without a robots typically use dead reckoning and inertial motion trac...
Link analysis Knowledge discovery Link_analysis > Knowledge discovery Manual or computer-generated visualizations tools may be mapped from the data, including network charts. Several algorithms exist to help with analysis of data – Dijkstra’s algorithm, breadth-first search, and depth-first search. Link analysis focuse...
Perichromatin fibril Evolution Cell_Nucleus > Evolution The archaeal origin of the nucleus is supported by observations that archaea and eukarya have similar genes for certain proteins, including histones. Observations that myxobacteria are motile, can form multicellular complexes, and possess kinases and G proteins si...
Genome-wide CRISPR-Cas9 knockout screens Arrayed vs pooled screens Genome-wide_CRISPR-Cas9_knockout_screens > Limitations > Arrayed vs pooled screens In an arrayed screen, each well contains a specific and known sgRNA targeting a specific gene. Arrayed screens therefore allow for detailed profiling of a single cell, bu...
Minsky machine Summary Minsky_machine In mathematical logic and theoretical computer science, a register machine is a generic class of abstract machines used in a manner similar to a Turing machine. All the models are Turing equivalent.
Pythagorean hammers Contents of the legend Pythagorean_hammers > Contents of the legend For the dissonant interval between fifth and fourth, it was revealed that it was based on the ratio 9:8, which coincided with the weight measurements carried out in the forge. The octave proved to be the product of the fifth and fou...
Alternative splicing Adaptive significance Alternatively_spliced > Adaptive significance Genuine alternative splicing occurs in both protein-coding genes and non-coding genes to produce multiple products (proteins or non-coding RNAs). External information is needed in order to decide which product is made, given a DNA ...
Just in time compiler History Just-in-time_compilation > History Self was abandoned by Sun, but the research went into the Java language. The term "Just-in-time compilation" was borrowed from the manufacturing term "Just in time" and popularized by Java, with James Gosling using the term from 1993. Currently JITing is ...
Language equation Summary Language_equation Language equations are mathematical statements that resemble numerical equations, but the variables assume values of formal languages rather than numbers. Instead of arithmetic operations in numerical equations, the variables are joined by language operations. Among the most ...
Interpersonal communication Relevance to mass communication Interpersonal_communication > Relevance to mass communication Interpersonal communication has been studied as a mediator for information flow from mass media to the wider population. The two-step flow of communication theory proposes that most people form thei...
Cognitive ergonomics History Cognitive_ergonomics > History The field of cognitive ergonomics emerged predominantly in the 70's with the advent of the personal computer and new developments in the fields of cognitive psychology and artificial intelligence. It studied how human cognitive psychology works hand-in-hand wi...
Computerized adaptive testing Pass-fail Computerized_adaptive_testing > Other issues > Pass-fail Note that this is a point hypothesis formulation rather than a composite hypothesis formulation that is more conceptually appropriate. A composite hypothesis formulation would be that the examinee's ability is in the region...
164 (number) In other fields 164_(number) > In other fields 164 is also: The year AD 164 or 164 BC 164 AH is a year in the Islamic calendar that corresponds to 780 – 781 CE The Scrabble board, a 15-by-15 grid, includes 164 squares that have neither word nor letter multiplier. The remainder have attributes such as doubl...
Immune tolerance Definitions and usage Immunologic_tolerance > Definitions and usage Immune tolerance is formally differentiated into central or peripheral; however, alternative terms such as "natural" or "acquired" tolerance have at times been used to refer to establishment of tolerance by physiological means or by ar...
Software lockout Kernel-level critical sections Software_lockout > Kernel-level critical sections To prevent critical races and inconsistency, only one processor (CPU) at a given time is allowed to access a particular data structure (a memory portion), while other CPUs trying to access at the same time are locked-out, ...
Applications of AI Automotive Applications_of_AI > Transport > Automotive A group of autonomous trucks follow closely behind each other. German corporation Daimler is testing its Freightliner Inspiration.Autonomous vehicles require accurate maps to be able to navigate between destinations. Some autonomous vehicles do n...
Mechanical advantage Block and tackle Mechanical_advantage > Block and tackle A block and tackle is an assembly of a rope and pulleys that is used to lift loads. A number of pulleys are assembled together to form the blocks, one that is fixed and one that moves with the load. The rope is threaded through the pulleys to...
Exponential random graph models Background Exponential_family_random_graph_models > Background Many metrics exist to describe the structural features of an observed network such as the density, centrality, or assortativity. However, these metrics describe the observed network which is only one instance of a large numbe...