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Gradualism
Gradualism, from the Latin ''gradus'' ("step"), is a hypothesis, a theory or a tenet assuming that change comes about gradually or that variation is gradual in nature and happens over time as opposed to in large steps. Uniformitarianism, incrementalism, and reformism are similar concepts. Geology and biology In the natural sciences, gradualism is the theory which holds that profound change is the cumulative product of slow but continuous processes, often contrasted with catastrophism. The theory was proposed in 1795 by James Hutton, a Scottish geologist, and was later incorporated into Charles Lyell's theory of uniformitarianism. Tenets from both theories were applied to biology and formed the basis of early evolutionary theory. Charles Darwin was influenced by Lyell's ''Principles of Geology'', which explained both uniformitarian methodology and theory. Using uniformitarianism, which states that one cannot make an appeal to any force or phenomenon which cannot presently ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uniformitarianism
Uniformitarianism, also known as the Doctrine of Uniformity or the Uniformitarian Principle, is the assumption that the same natural laws and processes that operate in our present-day scientific observations have always operated in the universe in the past and apply everywhere in the universe., "''The assumption of spatial and temporal invariance of natural laws is by no means unique to geology since it amounts to a warrant for inductive inference'' which, as Bacon showed nearly four hundred years ago, is ''the basic mode of reasoning in empirical science. Without assuming this spatial and temporal invariance, we have no basis for extrapolating from the known to the unknown'' and, therefore, no way of reaching general conclusions from a finite number of observations." It refers to invariance in the metaphysical principles underpinning science, such as the constancy of cause and effect throughout space-time, but has also been used to describe spatiotemporal invariance of physical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incrementalism
:''In politics, the term "incrementalism" is also used as a synonym for Gradualism#Politics and society, Gradualism.'' Incrementalism is a method of working by adding to a project using many small wikt:incremental, incremental changes instead of a few (extensively planned) large jumps. Logical incrementalism implies that the steps in the process are sensible. Logical incrementalism focuses on "the Power-Behavioral Approach to planning rather than to the Formal Systems Planning Approach". In public policy, incrementalism is the method of change by which many small policy changes are enacted over time in order to create a larger broad based policy change. Political scientist Charles E. Lindblom developed this theoretical policy of rationality in the 1950s as a middle way between the rational actor model and bounded rationality, as both long term, goal-driven policy rationality and satisficing were not seen as adequate. Origin Most people use incrementalism without ever needing a n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punctuated Equilibrium
In evolutionary biology, punctuated equilibrium (also called punctuated equilibria) is a theory that proposes that once a species appears in the fossil record, the population will become stable, showing little evolutionary change for most of its geological history. : ''Reprinted in'' * * This state of little or no morphological change is called ''stasis''. When significant evolutionary change occurs, the theory proposes that it is generally restricted to rare and geologically rapid events of branching speciation called cladogenesis. Cladogenesis is the process by which a species splits into two distinct species, rather than one species gradually transforming into another. Punctuated equilibrium is commonly contrasted with phyletic gradualism, the idea that evolution generally occurs uniformly by the steady and gradual transformation of whole lineages ( anagenesis). In 1972, paleontologists Niles Eldredge and Stephen Jay Gould published a landmark paper developing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephen Jay Gould
Stephen Jay Gould (; September 10, 1941 – May 20, 2002) was an American paleontologist, evolutionary biologist, and historian of science. He was one of the most influential and widely read authors of popular science of his generation. Gould spent most of his career teaching at Harvard University and working at the American Museum of Natural History in New York. In 1996, Gould was hired as the Vincent Astor Visiting Research Professor of Biology at New York University, after which he divided his time teaching between there and Harvard. Gould's most significant contribution to evolutionary biology was the theory of punctuated equilibrium developed with Niles Eldredge in 1972.Eldredge, Niles, and S. J. Gould (1972)"Punctuated equilibria: an alternative to phyletic gradualism."In T.J.M. Schopf, ed., ''Models in Paleobiology''. San Francisco: Freeman, Cooper and Company, pp. 82–115. The theory proposes that most evolution is characterized by long periods of evolutionary stabili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Socialism
Socialism is a left-wing economic philosophy and movement encompassing a range of economic systems characterized by the dominance of social ownership of the means of production as opposed to private ownership. As a term, it describes the economic, political and social theories and movements associated with the implementation of such systems. Social ownership can be state/public, community, collective, cooperative, or employee. While no single definition encapsulates the many types of socialism, social ownership is the one common element. Different types of socialism vary based on the role of markets and planning in resource allocation, on the structure of management in organizations, and from below or from above approaches, with some socialists favouring a party, state, or technocratic-driven approach. Socialists disagree on whether government, particularly existing government, is the correct vehicle for change. Socialist systems are divided into non-market and mark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Language Change
Language change is variation over time in a language's features. It is studied in several subfields of linguistics: historical linguistics, sociolinguistics, and evolutionary linguistics. Traditional theories of historical linguistics identify three main types of change: systematic change in the pronunciation of phonemes, or sound change; borrowing, in which features of a language or dialect are altered as a result of influence from another language or dialect; and analogical change, in which the shape or grammatical behavior of a word is altered to more closely resemble that of another word. All living languages are continually undergoing change. Some commentators use derogatory labels such as "corruption" to suggest that language change constitutes a degradation in the quality of a language, especially when the change originates from human error or is a prescriptively discouraged usage. Modern linguistics rejects this concept, since from a scientific point of view su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linguistics
Linguistics is the scientific study of human language. It is called a scientific study because it entails a comprehensive, systematic, objective, and precise analysis of all aspects of language, particularly its nature and structure. Linguistics is concerned with both the cognitive and social aspects of language. It is considered a scientific field as well as an academic discipline; it has been classified as a social science, natural science, cognitive science,Thagard, PaulCognitive Science, The Stanford Encyclopedia of Philosophy (Fall 2008 Edition), Edward N. Zalta (ed.). or part of the humanities. Traditional areas of linguistic analysis correspond to phenomena found in human linguistic systems, such as syntax (rules governing the structure of sentences); semantics (meaning); morphology (structure of words); phonetics (speech sounds and equivalent gestures in sign languages); phonology (the abstract sound system of a particular language); and pragmatics (how soc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I Have A Dream
"I Have a Dream" is a public speech that was delivered by American civil rights activist and Baptist minister, Martin Luther King Jr., during the March on Washington for Jobs and Freedom on August 28, 1963. In the speech, King called for civil and economic rights and an end to racism in the United States. Delivered to over 250,000 civil rights supporters from the steps of the Lincoln Memorial in Washington, D.C., the speech was a defining moment of the civil rights movement and among the most iconic speeches in American history. Beginning with a reference to the Emancipation Proclamation, which declared millions of slaves free in 1863, King said "one hundred years later, the Negro still is not free".Alexandra Alvarez, "Martin Luther King's 'I Have a Dream': The Speech Event as Metaphor", ''Journal of Black Studies'' 18(3); . Toward the end of the speech, King departed from his prepared text for a partly improvised peroration on the theme "I have a dream", prompted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African-American
African Americans (also referred to as Black Americans and Afro-Americans) are an Race and ethnicity in the United States, ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of Slavery in the United States, enslaved Africans who are from the United States. While some Black immigrants or their children may also come to identify as African-American, the majority of first generation immigrants do not, preferring to identify with their nation of origin. African Americans constitute the second largest racial group in the U.S. after White Americans, as well as the third largest ethnic group after Hispanic and Latino Americans. Most African Americans are descendants of enslaved people within the boundaries of the present United States. On average, African Americans are of West Africa, West/Central Africa, Central African with some European descent; some also have Native Americans in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drift (linguistics)
Two types of language change can be characterized as linguistic drift: a unidirectional short-term and cyclic long-term drift. Short-term unidirectional drift According to Sapir, drift is the unconscious change in natural language. He gives the example ''Whom did you see?'' which is grammatically correct but is generally replaced by ''Who did you see?'' Structural symmetry seems to have brought about the change: all other ''wh-'' words are monomorphic (consisting of only one morpheme). The drift of speech changes dialects and, in long terms, it generates new languages. Although it may appear these changes have no direction, in general they do. For example, in the English language, there was the Great Vowel Shift, a chain shift of long vowels first described and accounted for in terms of drift by Jespersen (1860–1943). Another example of drift is the tendency in English to eliminate the ''-er'' comparative formative and to replace it with the more analytic ''more''. Thus, in som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberalism
Liberalism is a political and moral philosophy based on the rights of the individual, liberty, consent of the governed, political equality and equality before the law."political rationalism, hostility to autocracy, cultural distaste for conservatism and for tradition in general, tolerance, and ... individualism". John Dunn. ''Western Political Theory in the Face of the Future'' (1993). Cambridge University Press. . Liberals espouse various views depending on their understanding of these principles. However, they generally support private property, market economies, individual rights (including civil rights and human rights), liberal democracy, secularism, rule of law, economic and political freedom, freedom of speech, freedom of the press, freedom of assembly, and freedom of religion. Liberalism is frequently cited as the dominant ideology of modern times.Wolfe, p. 23.Adams, p. 11. Liberalism became a distinct movement in the Age of Enlightenment, gaining popularity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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