History Of Astronomy: What's New At This Site On March 8, 1999 gompertz, benjamin (17791865). Short biography and references H Halley,Edmond (1656-1742). Biography and references Very short biography and links http://www.astro.uni-bonn.de/~pbrosche/new/new990308.html
History Of Astronomy: Persons (G) gompertz, benjamin (17791865). Short biography and references (MacTutor Hist.Math.) Goodricke, John (1764-1786). Short biography and references (Or see http://www.astro.uni-bonn.de/~pbrosche/persons/pers_g.html
Extractions: Gagarin, Yuri Alekseyevich (1934-1968) Gale, Walter Frederick (1865-1945) Galilei, Galileo Galle, Johann Gottfried (1812-1910) Galois, Evariste (1811-1832) Gamow, George (1904-1968) Ganesa (1507-after 1564) Gaposchkin, Cecilia Payne: see Payne-Gaposchkin, Cecilia (1900-1979) Gascoigne, Sidney Charles (b. 1915) Gascoigne, William (1621-1644) Gassendi [Gassend; Gassendy], Pierre (1592-1655)
The Science Bookstore - Chronology gompertz, benjamin Born 3/5/1779, 1779 AD. Berzelius, JJ Born 8/20/1779, 1779 AD.1779 AD, Ingenhousz, J. Photosynthesis Jan Ingenhousz http://www.thesciencebookstore.com/chron.asp?pg=10
Dictionary Of Scientific Biography gompertz, benjamin (b. London, England, 5 March 1779; d. PF Hooker, benjamingompertz, in Journal of the Institute of Actuaries, 91, pt. 2, no. http://www.chlt.org/sandbox/lhl/dsb/page.466.php
Extractions: Electronic edition published by Cultural Heritage Langauge Technologies (with permission from Charles Scribners and Sons) and funded by the National Science Foundation International Digital Libraries Program. This text has been proofread to a low degree of accuracy. It was converted to electronic form using data entry. Page 96 of 314 Gompertz's work on life contingencies appeared in the Philosophical Transactions of the Royal Society: âA Sketch of the Analysis and Notation Applicable to the Value of Life Contingencies,â (1820), 214-294; âOn the Nature of the Function Expressive of the Law of Human Mortality, and on a New Mode of Determining the Value of Life Contingencies,â (1825), 513-585; and âA Supplement to the Two Papers of 1820 and 1825,â âThe Application of a Method of Differences to the Species of Series Whose Sums Are Obtained by Mr. Landen by the Help of Impossible Quantities,â
Entrez PubMed benjamin gompertz revisited. Bonneux L. Julius Center for Health Sciences andPrimary Care, Utrecht, The Netherlands. l.bonneux@jc.azu.nl Publication Types http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=1
Entrez PubMed In 1825 British actuary benjamin gompertz made a simple but important observationthat a law of geometrical progression pervades large portions of different http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9
Chronology gompertz, benjamin (17791865) Guevara, Che - Ernesto Guevara de la Serna (1928-1967)Gutenberg, Johannes (c. 1400-1468). Haeckel, Ernst (1834-1919) http://www.macroknow.com/books/q-chronology.htm
Extractions: MACROKNOW BOOK CLUB Chronology Authors Topics ... Forecast Global 7-Day Mindshares for 9-Jun-05 - 15-Jun-05: Evil 8.8% Down - Debt 8.8% Down - Capitalism 8.2% Up - Deceit 6.9% Up - Money 6.9% Down - Religion 6.6% Down - Bankers 6.6% Up - Free Trade 6.3% Up - Law 6.3% Up - Truth 5.6% Up - Justice 5.0% Up - Slavery 4.7% Up - Science 4.7% Up - Arithmetic 4.4% Up - Technology 3.8% Up - Freedom 3.4% Up - Good 3.1% Up. Probability of Terrorism and Destructive Potential Entailed in Economic Uncertainty, by Threat Level Ed's Favorite Quotations Emphasis added. References below. A CHRONOLOGY Century Personality Archaic Man B.C. Egyptians (c. 4000 B.C.)
MECHANISMS OF AGING In 1825 an English actuary named benjamin gompertz discovered that likelihood ofdying increases exponentially with age after maturity an empirical http://www.benbest.com/lifeext/aging.html
Extractions: by Ben Best DEFINITION OF AGING SYMPTOMS OF AGING AN OVERVIEW OF AGING AND OF AGING THEORIES EVOLUTION THEORY AND SPECIES-SPECIFIC AGING ... BOOK REFERENCES Aging is a syndrome of changes that are deleterious, progressive, universal and thus far irreversible. Aging changes occur to molecules (DNA, proteins, lipids), to cells and to organs. Diseases of old age (diseases which increase in frequency with age, such as arthritis, osteoporosis, heart disease, cancer Alzheimer's Disease , etc.) are often distinguished from aging per se . But even if the aging process is distinct from the diseases of aging, it is nonetheless true that the aging process causes changes that increase the probability that diseases of old age will occur. Some gerontologists prefer to use the word senescence because "aging" implies that the passage of time necessarily results in deterioration (biological entropy) which is certainly not true during the early, developmental , time of life (before the age of 10 or 12 in humans). I will retain the word "aging" because I believe the association between aging & deterioration is universal as adult years progress and because the distinction between aging & development is very strongly established in conventional language. Also, shorter words make for slightly faster reading.
Jewish Encyclopedia Articles G - BibleWiki GOMPERS, SAMUEL (Jewish Encyclopedia) gompertz, benjamin (Jewish Encyclopedia) gompertz, LEWIS (Jewish Encyclopedia) GOMPERZ, benjamin (Jewish http://bible.tmtm.com/wiki/Jewish_Encyclopedia_Articles_G
Extractions: Retrieved from " http://bible.tmtm.com/wiki/Jewish_Encyclopedia_Articles_G Views Personal tools Navigation Search Toolbox What links here Related changes Upload file Special pages This page was last modified 25 June 2005 15:06. This page has been accessed 107 times. Content is available under GNU Free Documentation License 1.2 About BibleWiki
Gompertz, Isaac, The Library Of The Jewish Theological Seminary Alexander Jamieson, and J. Oliphant; letters of Amelia gompertz; and proposalby benjamin gompertz for aiding the Jewish poor of London, 1845. http://www.jtsa.edu/library/archives/jtsarchives/gompertz_isaac.shtml
Extractions: About JTS Programs of Study Student Services Library ... Support JTS Name Special Call Number ARC 43 Physical Description 11 items. [Papers and Correspondence of Isaac Gompertz] Research Note Access may be restricted. Reproduction or publication only with permission. Email for details Biographical Note English poet. Collection Summary Correspondence between Gompertz and Henry Cohen, Charles Gompertz, Alexander Jamieson, and J. Oliphant; letters of Amelia Gompertz; and proposal by Benjamin Gompertz for aiding the Jewish poor of London, 1845. Inventory Note The most current general and box level inventory is available in the Special Collections Reading Room Guide to the JTS Archival Collections Selected Search Terms Subjects Jews Charities. Occupation Poets, English. Archive Location Jewish Theological Seminary. Library, 3080 Broadway, New York, NY, 10027. Record ID# Preliminary Box Level Quick Links.... Academic Bulletin Academic Calendar Admissions Courses Distance Learning Faculty Financial Aid Human Resources Ivry Prozdor JTS Celebrates America JTS Press Parashat HaShavua Policies Registrar Shop at JTS Site Map Directories Contact Us
Lec9.2 The gompertz Curve. Named after benjamin gompertz (17791865); General form.Yc = ca exp(bx). Log transformation. log Yc = log ca exp(bx http://www.uwsp.edu/geo/faculty/ofori/geog495/Lec9.2.html
Population Dynamics Study Gompertz Verhulst General Formulation Population Dynamics Study gompertz Verhulst General Formulation Economy. by demographic studies such as the work of benjamin gompertz ( 5 March 1779 14 http://www.economicexpert.com/a/Population:dynamics.html
Extractions: var GLB_RIS='http://www.economicexpert.com';var GLB_RIR='/cincshared/external';var GLB_MMS='http://www.economicexpert.com';var GLB_MIR='/site/image';GLB_MML='/'; document.write(''); document.write(''); document.write(''); document.write(''); A1('s',':','html'); Non User A B C ... Population dynamics is the study of marginal and long term changes in the numbers, individual weights and age composition of individuals in one or several population s, and biological and environmental processes influencing those changes. Population dynamics is the dominant branch of mathematical biology , which has a history of more than 200 years. The early period was dominated by demographic studies such as the work of Benjamin Gompertz 5 March 14 July ) and Pierre François Verhulst 28 October 15 February ), who refined and adjusted the Malthusian demograhical model. A more general model formulation was proposed by F.J. Richards in Events January-February January 1 Cultivars of plants named after this date must be named in a modern language, not in Latin. January 1 Cuba: Fulgencio Batista flees Havana when forces of Fidel Castro advance January 2 CBS Radio cuts four soap operas: Bac , by which the models of Gompertz, Verhulst and also Ludwig von Bertalanffy Karl Ludwig von Bertalanffy ( September_19, 1901, Vienna, Austria June_12, 1972, New York, USA) was a biologist who was a founder of general systems theory. An Austrian citizen, he did much work in the United States. However, he experienced discrimination
Gomperz More than 80 illustrations include benjamin gompertz the mathematician; Lewisgompertz, founder of the Royal Society for the Prevention of Cruelty to http://www.tymsder.co.uk/gomperz.htm
Extractions: Professor David Kaufman and Dr Max Freudenthal, published in Frankfurt in 1907, in an English translation by Dr Bernard Standring This classic book that traces the genealogy of the Gomperz family is first and foremost a fascinating work of history. The family settled in Germany along the Lower Rhine around the year 1600, and moved on to Berlin, Frankfurt, Metz, Vienna and Prague as well as to Holland, England, and later the United States of America. Today, it would be difficult to find a country that does not have a Gomperz, Gompertz, Gomperts, Gumpertz, Gompers or other variation of the name, descended from the original settlers on the Rhine The book is, in effect, a history of the Jews in Germany in the seventeenth, eighteenth and early nineteenth centuries, concentrating on the activities of the court Jews and showing the general attitude of the Electors of Prussia and Saxony and other Royal Houses towards the Jews who were sometimes treated with a modicum of respect and rewarded for their efforts, but equally often thrown into prison on the whim of a prince or through the machinations of members of the court. It highlights the enormous difficulties that the Jews faced to obtain a respected position in society, where medicine was the only career open to them apart from trade, which was precarious because they were always restricted in the range of trades they were permitted to engage in and were taxed much more heavily that the rest of the population.
Longevity First: Cashing In On Protandim those who blanche at equations that 180 years ago benjamin gompertz noticed that, This is the gompertz relationship, and it has two parameters, http://www.mprize.org/index.php?ctype=news&pagename=blogdetaildisplay&BID=200506
Discussion Of The Paper By Jack C. Yue The author also suggested an explanation why the gompertz law fails at older ages, starting with the study of benjamin gompertz himself (gompertz,1825; http://longevity-science.org/DYue.html
Extractions: This is an interesting study, which suggests and applies new rigorous statistical methods to test the validity of the Gompertz law at extreme old ages. The author also suggested an explanation why the Gompertz law fails at older ages, based on the idea of population heterogeneity. It is important to discuss the scientific background related to this study because the significance of this work could be more fully appreciated in the context of previous findings. The current situation with applicability of the Gompertz law to extreme old ages is paradoxical. On the one hand, it is well known for a long time that the Gompertz law is not applicable to mortality rates at advanced ages the observed mortality rates are always lower than predicted by the Gompertz model, and, not surprisingly, the actual numbers of survivors to extreme ages is always higher than predicted by the Gompertz law. The picture below illustrates the mortality deceleration observed at advanced ages contrary to the predictions of the Gompertz law: Paradoxically, the Gompertz law and the Gompertz-Makeham law are nevertheless often applied to estimate the oldest-old mortality rates by extrapolation in order to "close" the life tables. When confronted with the question why these "wrong" formulas are used, the demographers/actuaries usually reply that this is not an important issue, because life expectancy at birth is not very sensitive to the way how exactly the life tables are closed. The same "wrong" formulas and related assumptions are often used for graduation (smoothing procedures) of the mortality trajectories at advanced ages. It is extremely important, therefore, to know exactly how a particular life table was closed and/or graduated, before using it for testing of any statistical models. If the Gompertz or the Gompertz-Makeham laws were already introduced into the data by the method of life table construction/graduation, these data would not be useful for statistical hypothesis testing.
Extractions: Introduction There is a growing interest to the topic of aging and to the search for a general theory that can explain what aging is and why and how it happens. There is also a need for a general theoretical framework that may allow researchers to handle an enormous amount of diverse observations related to aging phenomena. Empirical observations on aging have become so numerous and abundant that a special 4-volume encyclopedia, The Macmillan Encyclopedia of Aging, is now required for even a partial coverage of the accumulated facts (Ekerdt, 2002). To transform these numerous and diverse observations into a comprehensive body of knowledge, a general theory of species aging and longevity is required. This theory is also important for understanding and forecasting the trends of human mortality and longevity. the possibility that with advancing age the rate of mortality asymptotes to a finite value x are 0.439 for women and 0.544 for men
Longevity First: June 2005 Archives gompertz Law is a formulation of an interesting fact about aging and death. who blanche at equations that 180 years ago benjamin gompertz noticed that, http://longevityfirst.org/archives/2005/06/
Extractions: Main There's been a spike in interest today about Protandim , a purported anti-aging product sold by Lifeline Therapeutics . So much interest has been generated, in fact, that Lifeline just started password protecting their website in the hour or so since I started writing this article. Go figure! Don't worry, this is probably a temporary situation while they try to figure out what they need to hide, if anything, from the public. In fact, the website may be accessible again by the time you're reading this. The Fight Aging article analyzing resveratrol and human growth hormone This discussion actually comes at a fortuitous time, because of an article recently written by renowned biogerontologist Aubrey de Grey On the other hand, increasing or decreasing the slope actually speeds up or slows down the acceleration of your mortality rate. It actually shortens or lengthens your life by a certain relative amount, e.g. subtracts or adds 20% to the number of years you statistically have left. If you had 10 years left, now you have 12. If you had 50 years left, now you have 60. Aubrey went on to say something similar: Thus, when analyzing data from a lifespan study, it is customary to derive the Gompertz parameters of a cohort subjected to some intervention that raises mean and/or maximum lifespan (mice on caloric restriction, for example) and to compare these parameters with those of the control population; if the Gompertz slope is reduced by the intervention (i.e., the doubling time is stretched), then aging is said to have been slowed, whereas if the Gompertz slope is unchanged and the life extension results only from a reduction in the intercept, aging is said only to have been delayed.
Population Dynamics: Information From Answers.com LotkaVolterra inter-specific competition equations Soay sheep weedy species Fish stocks population ecology Allee effect benjamin gompertz http://www.answers.com/topic/population-dynamics
Extractions: showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping population dynamics Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); population dynamics Population dynamics is the study of marginal and long-term changes in the numbers, individual weights and age composition of individuals in one or several populations , and biological and environmental processes influencing those changes. Population dynamics is the dominant branch of mathematical biology , which has a history of more than 200 years. The early period was dominated by demographic studies such as the work of Benjamin Gompertz and Pierre Fran§ois Verhulst in the early 19th century, who refined and adjusted the Malthusian demograhical model. A more general model formulation was proposed by F.J. Richards in , by which the models of Gompertz, Verhulst and also Ludwig von Bertalanffy are covered as special cases of the general formulation. The
List Of British Jews: Information From Answers.com benjamin Disraeli, 1st Earl of Beaconsfield (1837), Conservative Prime Minister statistician; John Fox, statistician; benjamin gompertz, mathematician http://www.answers.com/topic/list-of-british-jews
Extractions: showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping List of British Jews Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); List of British Jews country Sub-Saharan Africa Arab World ... North Europe UK Germany Italy France West Europe ... Oceania (*most are Jewish) Jews first arrived in Britain with William the Conqueror in , but were expelled in following increasing persecution. (Hence plays such as The Jew of Malta and The Merchant of Venice were written when England was essentially devoid of Jews.) Jews were readmitted in by Oliver Cromwell , and emancipation took place in . In the late 19th century there was mass Jewish immigration from anti-semitic Russia , and the saw an influx of refugees from Nazism . The Jewish population peaked at 450,000, but has since declined due to low birth rate, intermarriage and emigration. The current population according to the 2001 Census is around 240,000 (though many experts consider this an underestimate), most of whom live in
MONTEFIORE Families And Relatives benjamin gompertz Baron MONTEFIORE (1859 1891) Simcha MONTEFIORE (1806 (c.1846 - ) benjamin gompertz (1779 - 1865) Justina Lydia gompertz (1811 http://www.apex.net.au/~tmj/montefiore.htm
Extractions: Abel Francis MONTEFIORE (1862 - 1923) Abigail MONTEFIORE ( c. 1820 - ) Abigail Esther MONTEFIORE (1790 - 1871) Abraham MONTEFIORE (1788 - 1824) Abraham MONTEFIORE ( - 1847) Abraham MONTEFIORE (1829 - ) Abraham MONTEFIORE (1863 - ) Abraham MONTEFIORE ( c. 1874 - 1924) Abraham Israel MONTEFIORE Abramo MONTEFIORE Ada Barrow MONTEFIORE (1848 - 1916) Ada Mary MONTEFIORE ( c. 1864 - 1939) Ada Rachel MONTEFIORE (1841 - 1927) Adah Israel MONTEFIORE (1856 - 1922) Agnes MONTEFIORE (1857 - 1932) Albert Harold MONTEFIORE (1870 - 1940) Albert Lionel MONTEFIORE (1908 - ) Alfred Ernest MONTEFIORE (1890 - 1891) Alexander Arthur Israel MONTEFIORE (1852 - 1876) Alexander Israel MONTEFIORE (1818 - 1892) Alice MONTEFIORE (1848 - 1940) Alice MONTEFIORE (1873 - 1873) Alice Isabel MONTEFIORE (1906 - ) Alice Julia Judith MONTEFIORE (1851 - ) Alice Mary MONTEFIORE (1857 - 1944) Alice May MONTEFIORE (1876 - 1970) Alice May MONTEFIORE (1890 - 1890) Amadio MONTEFIORE Amy MONTEFIORE (1854 - 1944) Amy MONTEFIORE (1859 - 1934) Angelica Rosalind MONTEFIORE (1906 - ) Angelo MONTEFIORE Ann MONTEFIORE ( c.