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Bertalanffy
Karl Ludwig von Bertalanffy (19 September 1901 – 12 June 1972) was an Austrian biologist known as one of the founders of general systems theory (GST). This is an interdisciplinary practice that describes systems with interacting components, applicable to biology, cybernetics and other fields. Bertalanffy proposed that the classical laws of thermodynamics might be applied to closed systems, but not necessarily to "open systems" such as living things. His mathematical model of an organism's growth over time, published in 1934, is still in use today. Bertalanffy grew up in Austria and subsequently worked in Vienna, London, Canada, and the United States. Biography Ludwig von Bertalanffy was born and grew up in the little village of Atzgersdorf (now Liesing) near Vienna. The Bertalanffy family had roots in the 16th century nobility of Hungary which included several scholars and court officials.T.E. Weckowicz (1989). Ludwig von Bertalanffy (1901-1972): A Pioneer of General Systems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Systems Theory
Systems theory is the interdisciplinary study of systems, i.e. cohesive groups of interrelated, interdependent components that can be natural or human-made. Every system has causal boundaries, is influenced by its context, defined by its structure, function and role, and expressed through its relations with other systems. A system is "more than the sum of its parts" by expressing synergy or emergent behavior. Changing one component of a system may affect other components or the whole system. It may be possible to predict these changes in patterns of behavior. For systems that learn and adapt, the growth and the degree of adaptation depend upon how well the system is engaged with its environment and other contexts influencing its organization. Some systems support other systems, maintaining the other system to prevent failure. The goals of systems theory are to model a system's dynamics, constraints, conditions, and relations; and to elucidate principles (such as purpose, measure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Systems Theory
Systems theory is the interdisciplinary study of systems, i.e. cohesive groups of interrelated, interdependent components that can be natural or human-made. Every system has causal boundaries, is influenced by its context, defined by its structure, function and role, and expressed through its relations with other systems. A system is "more than the sum of its parts" by expressing synergy or emergent behavior. Changing one component of a system may affect other components or the whole system. It may be possible to predict these changes in patterns of behavior. For systems that learn and adapt, the growth and the degree of adaptation depend upon how well the system is engaged with its environment and other contexts influencing its organization. Some systems support other systems, maintaining the other system to prevent failure. The goals of systems theory are to model a system's dynamics, constraints, conditions, and relations; and to elucidate principles (such as purpose, measure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Von Bertalanffy Function
The von Bertalanffy growth function (VBGF), or von Bertalanffy curve, is a type of growth curve for a time series and is named after Ludwig von Bertalanffy. It is a special case of the generalised logistic function. The growth curve is used to model mean length from age in animals. The function is commonly applied in ecology to model fish growth and in paleontology to model sclerochronological parameters of shell growth. The model can be written as the following: : L(a)= L_\infty(1-\exp(-k(a-t_0))) where a is age, k is the growth coefficient, t_0 is the theoretical age when size is zero, and L_\infty is asymptotic size. It is the solution of the following linear differential equation: : \frac = k (L_ - L ) Seasonally-adjusted von Bertalanffy The seasonally-adjusted von Bertalanffy is an extension of this function that accounts for organism growth that occurs seasonally. It was created by I. F. Somers in 1988. See also * Gompertz function * Monod equation The Monod equa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atzgersdorf
Atzgersdorf (; Central Bavarian: ''Atzgasduaf'') is a former municipality in Lower Austria that is now a part of the 23rd Viennese district Liesing. A small part of the former municipality today is part of the 12th Viennese district Meidling. Today, the cadastral commune Atzgersdorf has got an area of 411,42 hectare. The part that belongs to Meidling has got an area of 35 hectare. Geography The east of Atzgersdorf is counted among the geological era of Holocene. The west is built on ground originating in the Pannonium, which is a subdivision of the Miocene. People * Ludwig von Bertalanffy (1901–1972), biologist * Hanns Hörbiger (1860–1931), engineer * Kurt Peters (1897–1978), chemist * Josef von Romako (1828-1882), naval officer * Anton Romako (1832–1889), painter * Karl Skraup (1898–1958), actor * Leopold Vogl (born 1910), football player * Karl Ecker (1947-1970), football player Further reading * David Sylvester Mayer von Rosenau David (; , "beloved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liesing
Liesing () is the 23rd district of Vienna. It is on the southwest edge of Vienna, Austria. It was formed after Austria's ''Anschluss'' with Germany, when Vienna expanded from 21 districts to 26. Fifteen Lower Austrian districts, especially the old legal jurisdiction of ''Liesing'', were incorporated into the 25th district.Vienna Districts data, wien.gv.at, 2008, webpage: -->bezirksportraets08.pdf wien.gv.at-portraets08-PDF. Wien.gv.at webpage (see below: References). After the allied occupation of Vienna, this law was not recognized and Liesing became a part of Lower Austria in the Soviet occupation zone. In 1946, a law intended to alter the districts of Vienna was vetoed by the occupation authorities. In 1954 the objection was withdrawn. Liesing was one of only two districts that remained in Vienna in the new organization. The areas Breitenfurt bei Wien, Laab im Walde, Purkersdorf, Perchtoldsdorf, Vösendorf, and Kaltenleutgeben returned to Lower Austria. Since 1954, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Theodor Fechner
Gustav Theodor Fechner (; ; 19 April 1801 – 18 November 1887) was a German physicist, philosopher, and experimental psychologist. A pioneer in experimental psychology and founder of psychophysics (techniques for measuring the mind), he inspired many 20th-century scientists and philosophers. He is also credited with demonstrating the non-linear relationship between psychological sensation and the physical intensity of a stimulus via the formula: S = K \ln I, which became known as the Weber–Fechner law. Early life and scientific career Fechner was born at Groß Särchen, near Muskau, in Lower Lusatia, where his father, a maternal uncle, and his paternal grandfather were pastors. His mother, Johanna Dorothea Fechner (b. 1774), née Fischer, also came from a religious family. Despite these religious influences, Fechner became an atheist in later life. Fechner's father, Samuel Traugott Fischer Fechner (1765-1806) was free-thinking in many ways, for example by having his childre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatol Rapoport
Anatol Rapoport ( uk, Анатолій Борисович Рапопо́рт; russian: Анато́лий Бори́сович Рапопо́рт; May 22, 1911January 20, 2007) was an American mathematical psychologist. He contributed to general systems theory, to mathematical biology and to the mathematical modeling of social interaction and stochastic models of contagion. Biography Rapoport was born in Lozova, Kharkov Governorate, Russia (in today's Kharkiv Oblast, Ukraine) into a secular Jewish family. In 1922, he came to the United States, and in 1928 he became a naturalized citizen. He started studying music in Chicago and continued with piano, conducting and composition at the Vienna Hochschule für Musik where he studied from 1929 to 1934. However, due to the rise of Nazism, he found it impossible to make a career as a pianist. He shifted his career into mathematics, completing a Ph.D. in mathematics under Otto Schilling and Abraham Adrian Albert at the University ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Grier Miller
James Grier Miller (19167 November 2002, California) was an American biologist, a pioneer of systems science and academic administrator, who originated the modern use of the term "behavioral science", founded and directed the multi-disciplinary Mental Health Research Institute at the University of Michigan, G.A. Swanson"James Grier Miller (1916-)"on ISSS.org. Last modified: 2007/06/10. Accessed 3 November 2008. and originated the living systems theory. Biography Miller received his A.B. summa cum laude in 1937, an A.M. in psychology in 1938, an M.D. cum laude in 1942, and a Ph.D. in psychology in 1943, all from Harvard University where he was also a junior fellow of the Society of Fellows. Following military service in World War II, he served as Chief of the newly formed Clinical Psychology section of the Veteran's Administration central office in Washington.Bernard W. Agranoff (2003)"James Grier Miller, 1916–2002 : Obituary" In: ''Neuropsychopharmacology (2003) 28, 2221–222 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hungary
Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and Slovenia to the southwest, and Austria to the west. Hungary has a population of nearly 9 million, mostly ethnic Hungarians and a significant Romani minority. Hungarian, the official language, is the world's most widely spoken Uralic language and among the few non-Indo-European languages widely spoken in Europe. Budapest is the country's capital and largest city; other major urban areas include Debrecen, Szeged, Miskolc, Pécs, and Győr. The territory of present-day Hungary has for centuries been a crossroads for various peoples, including Celts, Romans, Germanic tribes, Huns, West Slavs and the Avars. The foundation of the Hungarian state was established in the late 9th century AD with the conquest of the Carpathian Basin by Hungar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London
London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a major settlement for two millennia. The City of London, its ancient core and financial centre, was founded by the Romans as '' Londinium'' and retains its medieval boundaries.See also: Independent city § National capitals The City of Westminster, to the west of the City of London, has for centuries hosted the national government and parliament. Since the 19th century, the name "London" has also referred to the metropolis around this core, historically split between the counties of Middlesex, Essex, Surrey, Kent, and Hertfordshire, which largely comprises Greater London, governed by the Greater London Authority.The Greater London Authority consists of the Mayor of London and the London Assembly. The London Mayor is distinguished fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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