[Changes in reproductive behavior in East Germany (1970-1979) in relation to family-politic measures. II].
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Biomedical subjects
Publications and source records attributed to U Fritsche.
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Birth control as well as medical attention to and counselling of women in the context of pregnancy, childbirth, development of fertility, and reproduction of population may be considered as major lines of sociogynaecology. An attempt is made in this paper to provide insights into methodical aspects with relevance to assessment and prognostication of those processes. Correlations are expounded between possibilities of birth control and fertility development, and reference is made to controlled variation of birth dates within the fertile phase of women together with the impact of such variation of fertility.
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A group of calcium-binding proteins which bind to biomembranes has recently been identified in widely different cells and tissues (refs 1-7, reviewed in ref. 8). Three of these proteins (p70, p36 and p32.5) cross-react with antiserum to calelectrin, a Ca2+-binding protein (relative molecular mass 34,000 (34K] from the ray Torpedo marmorata, giving rise to their designation as calelectrin-related proteins. We now report that calelectrin, p36 and p32.5 contain a 17-amino-acid consensus sequence which is conserved and present in multiple copies. We suggest that this sequence may be common to other members of this new group of Ca2+-binding proteins and may underlie their unusual mode of combination with biomembranes.