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The conception of the cost of reproduction provides an important insight on connection between fertility and life span in living organisms. Despite substantial progress in understanding this connection many important features of fertility-longevity trade-off are masked by confounding factors,...

In the paper basic epidemiological indicators, produced by an aging population of vectors, are calculated. In the study we follow two lines: calculations for demographically structured population and individual life-history approach. We discuss the advantages and limitations of these approaches...

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In this paper, we apply a system of description of family-demographic behavior to data derived from a number of Fertility and Family Surveys (FFS) conducted in Europe - and to corresponding survey data from the USA. We use life-table techniques in order to describe the experiences of men, women,...

In this paper, a recently developed mathematical model of age related changes in population of peripheral T cells (Romanyukha, Yashin, 2003) is used to describe ontogenetic changes of the immune system. The treatise is based on the assumption of linear dependence of antigen load from basal...

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Increasing proportions of couples are making childbearing decisions in stepfamilies but there has been no general comparative picture across European countries on stepfamily formation. The present paper aims to fill this gap and provides a comparison of European countries using macro-level...

Interpersonal relationships of support have been found to be an important factor in individual fertility intentions in Central and Eastern European countries. The foundations of this positive influence have not been well explored to date, however. We present a theoretical discussion on...