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Design & Copyright |
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Migration and migrants
International migration is a major factor of demographic and social change and for an increasing number of countries, international migration has become the most important factor of population growth. As a result European populations are becoming more diverse than ever before. Our research focuses both on migration flows in a macro perspective to better understand European migration patterns, as well as on migrant behavior at the micro level. Emphasis is put on the demographic and socio-economic position of migrants and the demographic dynamics in migrant families, applying the life course approach to complete the wealth of studies on the structural and cultural position of migrants. See more |
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Otium cum dignitate |
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"Reshuffling chaos" |
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Graduation of Mortality (from: samples | K | Show | Mortality) Free Download (193Kb) See also: Most recent article Mortality tables are usually graduated for either practical or scientific purposes. The formulae, in which the mortality is expressed as a function of x (= age) are often of the type (Makeham's law): mx = A + B.cx (force of mortality) with A, B and c as parameters. Finding the values of those parameters from the crude material is the hard part. King-Hardy's method is a suitable way to transform this power function into a linear equation system; it is solved here by way of a least square K-runtime function. See also E.Zwinggi - Versicherungsmathematik When invoked, one will find four controls in the bottom part. The first two controls act like a spinbox, the two right most controls simulate the Windows-locator. The challenge is to find as large as possible ranges for making the "law" valid. Later, famous methods came from Th.N. Thiele, published posthumously in 1910, and recent approaches and remarks can be found in W.J. Willemse Recommended for Africa: G.M.K. Kpedekpo - Essentials of Demographic Analysis for Africa Jan Karman LinkedIn Middelburg (Neth), November 2006
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