Results 261 to 270 of about 309,530 (312)
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Mathematical Biosciences, 1990
A demographic SIR epidemic model with vertical transmission of homogeneous type is studied. The hypothesis of homogeneity is assumed to model the interaction of epidemic and demographic features. General properties of homogeneous evolution equations and a generalized version of the Dulac criterion adapted to the homogeneous problem are applied to get ...
Busenberg, Stavros N., Hadeler, K. P.
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A demographic SIR epidemic model with vertical transmission of homogeneous type is studied. The hypothesis of homogeneity is assumed to model the interaction of epidemic and demographic features. General properties of homogeneous evolution equations and a generalized version of the Dulac criterion adapted to the homogeneous problem are applied to get ...
Busenberg, Stavros N., Hadeler, K. P.
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Proceedings of the Royal Society of London. Series B. Biological Sciences, 1963
Abstract Demographic data can serve several purposes. At the least, they provide a picture of the population as it is, or has recently been, in respect of the feature or property at issue. Further, in so far as comparable data are collected over a period of time, they will reveal changes that the population is undergoing.
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Abstract Demographic data can serve several purposes. At the least, they provide a picture of the population as it is, or has recently been, in respect of the feature or property at issue. Further, in so far as comparable data are collected over a period of time, they will reveal changes that the population is undergoing.
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Annual Review of Sociology, 1988
Organizational demography may be conveniently broken into four areas of theoretical development: intraorganizational demography, interorganizational demography, individual careers, and organizational and external populations. The bulk of the work has been conducted in the first three areas and deals with turnover of both personnel and jobs; growth ...
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Organizational demography may be conveniently broken into four areas of theoretical development: intraorganizational demography, interorganizational demography, individual careers, and organizational and external populations. The bulk of the work has been conducted in the first three areas and deals with turnover of both personnel and jobs; growth ...
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IEEE Annals of the History of Computing, 2022
Emily Klancher Merchant +1 more
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Emily Klancher Merchant +1 more
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The demography of deinstitutionalization
New Directions for Mental Health Services, 1983AbstractOnce defined as long‐term residents of psychiatric hospitals, the chronically mentally ill today are a heterogeneous population living in a variety of institutional and community settings.
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2006
Demography in Archaeology, first published in 2006, is a review of current theory and method in the reconstruction of populations from archaeological data. Starting with a summary of demographic concepts and methods, the book examines historical and ethnographic sources of demographic evidence before addressing the methods by which reliable demographic
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Demography in Archaeology, first published in 2006, is a review of current theory and method in the reconstruction of populations from archaeological data. Starting with a summary of demographic concepts and methods, the book examines historical and ethnographic sources of demographic evidence before addressing the methods by which reliable demographic
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2019
Plant demography is a relatively mature scientific discipline, but it is important to critical assess the currently used terminology and methodology in order to align the empirical studies of plant populations with the typical features of plant life history.
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Plant demography is a relatively mature scientific discipline, but it is important to critical assess the currently used terminology and methodology in order to align the empirical studies of plant populations with the typical features of plant life history.
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1994
Much of the stimulus for the development of social gerontology as an academic discipline, and as an area of social concern, has come from the increase, over this century, in the number and proportion of persons classified as elderly. In this chapter we examine the demographic trends which have brought about the growth in the size of the elderly ...
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Much of the stimulus for the development of social gerontology as an academic discipline, and as an area of social concern, has come from the increase, over this century, in the number and proportion of persons classified as elderly. In this chapter we examine the demographic trends which have brought about the growth in the size of the elderly ...
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1985
For most purposes of population study there is no need to consider any unit intermediate between the individual and the larger group consisting of all the individuals included within some area—state, province, county, or nation. Recognizing only two units, population and individual, permits the construction of models that are readily expounded and ...
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For most purposes of population study there is no need to consider any unit intermediate between the individual and the larger group consisting of all the individuals included within some area—state, province, county, or nation. Recognizing only two units, population and individual, permits the construction of models that are readily expounded and ...
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