Related Research Articles
Algebraic topology is a branch of mathematics that uses tools from abstract algebra to study topological spaces. The basic goal is to find algebraic invariants that classify topological spaces up to homeomorphism, though usually most classify up to homotopy equivalence.
In biology, homology is similarity due to shared ancestry between a pair of structures or genes in different taxa. A common example of homologous structures is the forelimbs of vertebrates, where the wings of bats and birds, the arms of primates, the front flippers of whales and the forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure. Evolutionary biology explains homologous structures adapted to different purposes as the result of descent with modification from a common ancestor. The term was first applied to biology in a non-evolutionary context by the anatomist Richard Owen in 1843. Homology was later explained by Charles Darwin's theory of evolution in 1859, but had been observed before this, from Aristotle onwards, and it was explicitly analysed by Pierre Belon in 1555.
In mathematics, homology is a general way of associating a sequence of algebraic objects, such as abelian groups or modules, with other mathematical objects such as topological spaces. Homology groups were originally defined in algebraic topology. Similar constructions are available in a wide variety of other contexts, such as abstract algebra, groups, Lie algebras, Galois theory, and algebraic geometry.
Webster's Dictionary is any of the English language dictionaries edited in the early 19th century by American lexicographer Noah Webster (1758–1843), as well as numerous related or unrelated dictionaries that have adopted the Webster's name in honor. "Webster's" has since become a genericized trademark in the United States for English dictionaries, and is widely used in dictionary titles.
In economics, fungibility is the property of a good or a commodity whose individual units are essentially interchangeable and each of whose parts is indistinguishable from another part.
Samuel Eilenberg was a Polish-American mathematician who co-founded category theory and homological algebra.
WW may refer to:
Louis Feuillade was a prolific and prominent French film director during the silent era. Between 1906 and 1924, he directed over 630 films.
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features.
Montblanc International is a German manufacturing company of luxury goods, based in Hamburg.
A landaulet, also known as a landaulette, is a car body style where the rear passengers are covered by a convertible top. Often the driver is separated from the rear passengers by a division, as with a limousine.
The Reign of Terror is the eighth serial in the British science fiction television series Doctor Who, which was first broadcast on BBC1 in six weekly parts from 8 August to 12 September 1964. It was written by Dennis Spooner and directed by Henric Hirsch. In the serial, the First Doctor, his granddaughter Susan, and teachers Ian Chesterton and Barbara Wright arrive in France during the period of the French Revolution known as the Reign of Terror, where they become involved with prisoners and English spies.
Richard Everard Webster, 1st Viscount Alverstone, was a British barrister, politician and judge who served in many high political and judicial offices.
National Bank Notes were United States currency banknotes issued by National banks chartered by the United States Government. The notes were usually backed by United States bonds the bank deposited with the United States Treasury. In addition, banks were required to maintain a redemption fund amounting to five percent of any outstanding note balance, in gold or "lawful money".
The Adventures of Kathlyn (1913) is an American motion picture serial released on December 29, 1913 by the Selig Polyscope Company. An adventure serial filmed in Chicago, Illinois, its thirteen episodes were directed by Francis J. Grandon from a story by Harold MacGrath and Gilson Willets and starred Kathlyn Williams as the heroine. Harold MacGrath's novel of the same title was released a few days later in January 1914, so as to be in book stores at the same time as the serial was playing in theaters.
Homogeneity and heterogeneity are concepts often used in the sciences and statistics relating to the uniformity of a substance or organism. A material or image that is homogeneous is uniform in composition or character ; one that is heterogeneous is distinctly nonuniform in one of these qualities.
Gary John Webster is an English actor.
Versuch die Metamorphose der Pflanzen zu erklären, known in English as Metamorphosis of Plants, was published by German poet and philosopher Johann Wolfgang von Goethe in 1790. In this work, Goethe essentially discovered the (serially) homologous nature of leaf organs in plants, from cotyledons, to photosynthetic leaves, to the petals of a flower. Although Sir Richard Owen, the British vertebrate anatomist, is generally credited with first articulating a definition of the word "homology", it is clear that Goethe had already arrived at a sophisticated view of homology and transformation more than fifty years earlier.
Walter Miller was an American actor of the silent era and the early sound era. He appeared in 248 films between 1911 and 1940. He was born in Dayton, Ohio, and died in Hollywood, California, from a heart attack, aged 48. His interment is located at Calvary Cemetery in Evanston, Illinois.
Mandrake the Magician (1939) is the seventh serial released by Columbia Pictures. It was based upon the King Features comic strip of the same name.
References
- ↑ R:Webster 1913 in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
- ↑ Novartis Foundation; Brian Hall (30 April 2008). Homology. John Wiley & Sons. pp. 29–. ISBN 978-0-470-51566-2 . Retrieved 18 May 2013.