烹饪 发表于 2025-3-21 17:58:41

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Frequency-Range 发表于 2025-3-21 21:47:40

Textbook 19771st editionical context. We have tried to find who first thought of the several concepts and devices commonly used by demographers, what sort of problem he was facing to which the device or concept seemed the solution, and how his invention developed subsequently in the hands of others. Historically, the book

PUT 发表于 2025-3-22 03:57:47

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漂亮才会豪华 发表于 2025-3-22 08:26:21

Short Methods of Constructing Abridged Life Tables that reason, have not received the attention they deserve from the actuarial profession. It is the purpose of this paper to bring some of these methods to the notice of actuaries and also to show that certain formulas which have been put forward by their originators on purely empirical grounds actually have a valid mathematical basis....

Soliloquy 发表于 2025-3-22 12:39:05

A Problem in Age-Distributionch the actual distribution varies, and towards which it tends to return if through any agency disturbed therefrom. It was shown on a former occasion. how to calculate the “fixed” age-distribution, which, if once established, will (under constant conditions) maintain itself.

首创精神 发表于 2025-3-22 13:18:20

Tables of Annuity Values Which Were Sanctioned by the Roman Law for the Purposes of the Lex Falcidiaccount of ., which at best could only have been continuously obtained with great difficulty.” The table values should be recognized as excessive if an interest rate much above 1% is incorporated, and we believe with Hendriks that none is.

Sinus-Rhythm 发表于 2025-3-22 19:00:18

An Illustration of Population Growthnal couple at ages 22, 24 and 26, and who die at age 40, later generations repeating the same fertility and mortality schedules. Euler demonstrates that after 300 years the population will be growing approximately geometrically and recognizes this as the limit of a recurrent series; i.e., he is working with a very general result.

resistant 发表于 2025-3-22 22:08:37

Resolving a Historical Confusion in Population Analysist much of his career,. with no cadre of graduate students and colleagues, he could naturally be expected to be prickly over failures to recognize and acknowledge his important contributions to demography.

推测 发表于 2025-3-23 03:15:35

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Melanocytes 发表于 2025-3-23 05:59:51

Life Tables for Natural Populations of Animals our most serious omission is a detailed study of barnacles that examines crowding effects and mortality. Deevey begins his article with discussions of the life table and of different general survival patterns, which we also omit.
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查看完整版本: Titlebook: Mathematical Demography; Selected Papers David P. Smith,Nathan Keyfitz Textbook 19771st edition Springer-Verlag Berlin · Heidelberg 1977 Ca