| Autism Autism is a brain development disorder characterized by impaired social interaction and communication, and by restricted and repetitive behavior. These signs all begin before a child is three years old. Autism
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| Anthropology Anthropology (, from the Greek , anthrōpos, "human", and -λογία, -logia, "discourse", first use in Englishhuman beings, everywhere and throughout time. Modern human beings are defined as members of the species Homo sapiens, which arose in Africa around 200,000BP (Before Present) (see Omo remains). Anthropology
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| Analysis of variance statistics, analysis of variance (ANOVA) is a collection of statistical models, and their associated procedures, in which the observed variance is partitioned into components due to different explanatory variables. In its simplest form ANOVA gives a statistical test of whether the means of several groups are all equal, and therefore generalizes Student's two-sample t-test to more than two groups. Analysis_of_variance
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| Altaic languages Altaic is a disputed language family that is generally held by its proponents to include the Turkic, Mongolic, Tungusic, Korean, and Japonic language families (Georg et al. 1999 These languages are spoken in a wide arc stretching from northeast Asia through Central Asia to Anatolia and eastern Europe (Turks, Kalmyks). The group is named after the Altai Mountains, a mountain range in Central Asia. Altaic_languages
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| Amsterdam Amsterdam
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| Adam Smith Adam Smith (baptised 16 June 1723Scottish moral philosopher and a pioneer of political economy. One of the key figures of the Scottish Enlightenment, Smith is the author of The Theory of Moral Sentiments and An Inquiry into the Nature and Causes of the Wealth of Nations. The latter, usually abbreviated as The Wealth of Nations, is considered his magnum opus and the first modern work of economics. Adam Smith is widely cited as the father of modern economics. Adam_Smith
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| Astrobiology Astrobiology (other terms have been exobiology, exopaleontology, and bioastronomy) is the study of the origin, evolution, distribution, and future of life in the universe. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, life on Mars and other bodies in our Solar System, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology
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| Archaeoastronomy Archaeoastronomy (also spelled archeoastronomy) is the study of how past people "have understood the phenomena in the sky, how they used phenomena in the sky and what role the sky played in their cultures." Clive Ruggles argues it specifically is not the study of ancient astronomy, as astronomy is a culturally specific concept and ancient peoples may have related to the sky in a different way. Archaeoastronomy
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| Attribution of recent climate change Attribution of recent climate change is the effort to scientifically ascertain mechanisms responsible for relatively recent changes observed in the Earth's climate. The effort has focused on changes observed during the period of instrumental temperature record, when records are most reliable; particularly on the last 50 years, when human activity has grown fastest and observations of the upper atmosphere have become available. Attribution_of_recent_climate_change
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| Antioxidant antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. Oxidation reactions can produce free radicals, which start chain reactions that damage cells. Antioxidant
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| Bird Birds (class Aves) are winged, bipedal, endothermic (warm-blooded), vertebrate animals that lay eggs. There are around 10,000 living species, making them the most numerous tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Bird
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| Book of Job The Book of Job (HebrewHebrew Bible. It relates the story of Job, his trials at the hands of Satan, his theological discussions with friends on the origins and nature of his suffering, and finally a response from God. The Book itself comprises a didactic poem set in a prose framing device and has been called “the most profound and literary work of the entire Old Testament”. Book_of_Job
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| Bipolar disorder Bipolar disorder, also known as manic depression, manic depressive disorder or bipolar affective disorder, is a psychiatric diagnosis that describes a category of mood disorders defined by the presence of one or more episodes of abnormally elevated mood clinically referred to as mania or, if milder, hypomania. Bipolar_disorder
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| British Isles Talk:British_Isles
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| Bayesian probability Bayesian probability is one of the most popular interpretations of the concept of probability. The Bayesian interpretation of probability can be seen as an extension of logic that enables reasoning with uncertain statements. To evaluate the probability of a hypothesis, the Bayesian probabilist specifies some prior probability, which is then updated in the light of new relevant data. The Bayesian interpretation provides a standard set of procedures and formulas to perform this calculation. Bayesian_probability
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| Carnivora The diverse order Carnivora ( or sometimes ; from Latin carō (stem carn-) "flesh", + vorāre "to devour") includes over 260 species of placental mammals. Its members are formally referred to as carnivorans, while the word "carnivore" (often popularly applied to members of this group) can refer to any meat-eating animal. Carnivora
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| Cretaceous–Tertiary extinction event The Cretaceous–Tertiary extinction event, which occurred approximately (Ma), was a large-scale mass extinction of animal and plant species in a geologically short period of time. Widely known as the K–T extinction event, it is associated with a geological signature known as the K–T boundary, usually a thin band of sedimentation found in various parts of the world. Cretaceous–Tertiary_extinction_event
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| Chaos theory mathematics, chaos theory describes the behavior of certain dynamical systems – that is, systems whose states evolve with time – that may exhibit dynamics that are highly sensitive to initial conditions (popularly referred to as the butterfly effect). As a result of this sensitivity, which manifests itself as an exponential growth of perturbations in the initial conditions, the behavior of chaotic systems appears to be random. Chaos_theory
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| Coercion Coercion ( or ) is the practice of compelling a person or manipulating them to behave in an involuntary way (whether through action or inaction) by use of threats, intimidation, trickery, or some other form of pressure or force. These are used as leverage, to force the victim to act in the desired way. Coercion
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| Clade For the novel, see Clade (novel) Clade
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| Lists of composers Talk:Lists_of_composers
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| Subspecies of Canis lupus Canis lupus has 39 subspecies currently described, including two subspecies of domestic dog, Canis lupus dingo and Canis lupus familiaris, and many subspecies of wolf throughout the northern hemisphere. The nominative subspecies is Canis lupus lupus.Biological taxonomy is not fixed, and placement of taxa is reviewed as a result of new research. Subspecies_of_Canis_lupus
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| Computer music Computer music is a term that was originally used within academia to describe a field of study relating to the applications of computing technology in music composition; particularly that stemming from the Western art music tradition. It includes the theory and application of new and existing technologies in music, such as sound synthesis, digital signal processing, sound design, sonic diffusion, acoustics, and psychoacoustics. Computer_music
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| Chagas disease Chagas disease (, , mal de Chagas in both languages; also called American trypanosomiasis) is a tropical parasitic disease caused by the flagellate protozoan Trypanosoma cruzi. T. cruzi is commonly transmitted to humans and other mammals by an insect vector, the blood-sucking assassin bugs of the subfamily Triatominae (family Reduviidae) most commonly species belonging to the Triatoma, Rhodnius, and Panstrongylus genera. Chagas_disease
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| Clavichord The clavichord is a European stringed keyboard instrument known from the late Medieval, through the Renaissance, Baroque and Classical eras. Historically, it was widely used as a practice instrument and as an aid to composition. The clavichord produces sound by striking brass or iron strings with small metal blades called tangents. Clavichord
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| Major depressive disorder For other depressive disorders, see Types of psychological depression.Major depressive disorder (also known as clinical depression, major depression, unipolar depression, or unipolar disorder) is a mental disorder characterized by an all-encompassing low mood accompanied by low self-esteem, and loss of interest or pleasure in normally enjoyable activities. Major_depressive_disorder
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| Design Design is used both as a noun and a verb. The term is often tied to the various applied arts and engineering (See design disciplines below). As a verb, "to design" refers to the process of originating and developing a plan for a product, structure, system, or component with intention. As a noun, "a design" is used for either the final (solution) plan (e.g. proposal, drawing, model, description) or the r Design
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| Division of labour Division of labour or specialization is the specialization of cooperative labour in specific, circumscribed tasks and roles, intended to increase the productivity of labour. Historically the growth of a more and more complex division of labour is closely associated with the growth of total output and trade, the rise of capitalism, and of the complexity of industrialization processes. Division_of_labour
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| Dolphin Dolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genera. They vary in size from and (Maui's Dolphin), up to and (the Orca or Killer Whale). They are found worldwide, mostly in the shallower seas of the continental shelves, and are carnivores, mostly eating fish and squid. Dolphin
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| Earth Earth
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| Encyclopedia An encyclopedia (also spelled encyclopaedia or encyclopædia) is a comprehensive written compendium that holds information from either all branches of knowledge or a particular branch of knowledge. Encyclopedias are divided into articles with one article on each subject covered. The articles on subjects in an encyclopedia are usually accessed alphabetically by article name and can be contained in one volume or many volumes, depending on the amount of material included. Encyclopedia
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| Design of experiments Design of experiments, or experimental design, is the design of all information-gathering exercises where variation is present, whether under the full control of the experimenter or not. (The latter situation is usually called an observational study.) Often the experimenter is interested in the effect of some process or intervention (the "treatment") on some objects (the "experimental units"), which may be people, parts of people, groups of people, etc. Design_of_experiments
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| Edinburgh Edinburgh
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| Ernst Haeckel Ernst Heinrich Philipp August Haeckel (February 16, 1834 – August 9, 1919), von Haeckel, was an eminent German biologist, naturalist, philosopher, physician, professor and artist who discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms, and coined many terms in biology, including phylum, phylogeny, ecology and the kingdom Protista. Ernst_Haeckel
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| English Civil War The English Civil War (1641–1651) was a series of armed conflicts and political machinations between Parliamentarians and Royalists. The first (1642–46) and second (1648–49) civil wars pitted the supporters of King Charles I against the supporters of the Long Parliament, while the third war (1649–51) saw fighting between supporters of King Charles II and supporters of the Rump Parliament. The Civil War ended with the Parliamentary victory at the Battle of Worcester on 3 September 1651. English_Civil_War
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| Eugenics Eugenics is "the study of, or belief in, the possibility of improving the qualities of the human species or a human population by such means as discouraging reproduction by persons having genetic defects or presumed to have inheritable undesirable traits (negative eugenics) or encouraging reproduction by persons presumed to have inheritable desirable traits (positive eugenics)." Eugenics
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| Electronic oscillator An electronic oscillator is an electronic circuit that produces a repetitive electronic signal, often a sine wave or a square wave.A low-frequency oscillator (LFO) is an electronic oscillator that generates an AC waveform at a frequency below ≈20 Hz. This term is typically used in the field of audio synthesizers, to distinguish it from an audio frequency oscillator. Electronic_oscillator
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| Edward Elgar Sir Edward William Elgar, 1st Baronet, OM, GCVO (2 June 1857 English composer. Several of his first major orchestral works, including the Enigma Variations and the Pomp and Circumstance Marches, were greeted with acclaim. He also composed oratorios, chamber music, symphonies, instrumental concertos, and songs. He was appointed Master of the King's Musick in 1924. Edward_Elgar
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| Embryo drawing Embryo drawing refers to any representation of the illustration of embryos in their developmental sequence. In plants and animals, an embryo develops from a zygote, the single cell that results when an egg and sperm fuse during fertilization. In animals, the zygote divides repeatedly to form a ball of cells, which then forms a set of tissue layers that migrate and fold to form an early embryo. Embryo_drawing
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| Emotion An emotion is a mental and physiological state associated with a wide variety of feelings, thoughts, and behavior. Emotions are subjective experiences, or experienced from an individual point of view. Emotion is often associated with mood, temperament, personality, and disposition. The English word 'emotion' is derived from the French word émouvoir. This is based on the Latin emovere, where e- (variant of ex-) means 'out' and movere means 'move'. The related term "motivation" is also derived from movere. Emotion
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| Stage (stratigraphy) In chronostratigraphy, a stage is a succession of rock strata laid down in an single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries.Rock series are divided into stages, just as geological epochs are divided into ages. Stages can be divided into smaller stratigraphic units called chronozones. (See chart at right for full terminology hierarchy.) Stage_(stratigraphy)
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| Functional programming In computer science, functional programming is a programming paradigm that treats computation as the evaluation of mathematical functions and avoids state and mutable data. It emphasizes the application of functions, in contrast to the imperative programming style, which emphasizes changes in state. Functional_programming
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| Falklands War The Falklands War (), also called the Falklands Conflict/Crisis, was fought in 1982 between Argentina and the United Kingdom (UK) over the disputed Falkland Islands and South Georgia and the South Sandwich Islands. The Falkland Islands consist of two large and many small islands in the South Atlantic Ocean east of Argentina; their name and sovereignty over them have long been disputed. Falklands_War
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| Finnish Civil War Finnish_Civil_War
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| Flynn effect The Flynn effect is the rise of the average intelligence quotient (IQ) test scores over generations (IQ gains over time). It is an effect seen in most parts of the world, although at greatly varying rates. It is named after James R. Flynn, who did much to document it and promote awareness of its implications. Flynn_effect
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| Game theory Game theory is a branch of applied mathematics that is used in the social sciences (most notably economics), biology, engineering, political science, international relations, computer science, and philosophy. Game theory attempts to mathematically capture behavior in strategic situations, in which an individual's success in making choices depends on the choices of others. Game_theory
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| Galen Aelius Galenus or Claudius Galenus (AD 129 – 200/217), better known as Galen of Pergamum (Greek:Galēnos), was a prominent Roman physician and philosopher of Greek origin, Galen
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| Genocide Genocide is the deliberate and systematic destruction, in whole or in part, of an ethnic, racial, religious, or national group. definition varies among genocide scholars, a legal definition is found in the 1948 United Nations Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG). Article 2 of this convention defines genocide as "any of the following acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group, as such Genocide
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| Global Boundary Stratotype Section and Point Global Boundary Stratotype Section and Point, abbreviated GSSP, is an internationally agreed upon stratigraphic section which serves as the reference section for a particular boundary on the geologic time scale. The effort to define GSSPs is conducted by the International Commission on Stratigraphy, a part of the International Union of Geological Sciences. Global_Boundary_Stratotype_Section_and_Point
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| Geometric algebra Note that this squared bivector is a geometric product. Geometric_algebra
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