Human Sexual Development. (Book Reviews: Man and Woman, Boy and Girl. The Differentiation and Dimorphism of Gender Identity from Conception to Maturity) 来自 ResearchGate 喜欢 0 阅读量: 204 作者:J Money,AA Ehrhardt 摘要: Presents human and animal experimental and clinical findings from genetics, ...
Broad-based comparisons lead to recognition of general principles that can feed into hypotheses concerning human reproductive medicine. Here, this approach is applied to basic life-history parameters (age at sexual maturity, gestation period, litter size, lactation period, interbirth interval, maximum ...
between chicks subjected to a reduced intensity of imprinting and chicks reared under standard husbandry conditions stresses the need for further investigations in this species, and specifically in terms of sexual and/or aggressive display towards humans when the birds reach full sexual maturity. ...
The fact that an increase in IGF-I activity plays a key role in the induction of sexual maturity, is consistent with a broader role for-IGF-I in aging regulation. If down-regulation of IGF-I activity could indeed slow aging in humans, a range of practical measures for achieving this may...
During childhood the seminiferous tubules show a similar pattern, but the number of Sertoli cells per transverse tubular sections decreases (16...19 cells). From 9 years of age onwards the seminiferous tubules become thicker, the number of Sertoli cells decreases (12...15 cells), and the ...
Sexual maturity: Physiological and clinical parameters Series: Perspectives in human reproduction, vol. 3 : E.S.E. Hafez (ed.) John Wiley and Sons Ltd., Chichester and New York, 1977 (294pp.) 10.00; US $ 16.50 来自 Elsevier 喜欢 0 阅读量: 40 作者: Turner,G. 摘要: Author ...
2 studies examined children's beliefs about the origins of gender differences and addressed 2 main questions: (a) What age-related changes are there in chi... MG Taylor - 《Child Development》 被引量: 278发表: 1996年 Genetic and environmental influences on morphological characteristics Study has...
In men, activity increased steadily until full sexual maturity, but did not change substantially after puberty. In women, activity increased significantly in advanced ages but there were no significant changes in the rest of the age groups tested. Significant sex differences were observed in subjects...
"As people move closer to realizing the rights of all children, the countries will move closer to their goals of development and Peace"(Kofi A. Annan: 2005); Based on this argument it is clear that children are starkly and brutally different from the ideal we all aspire to. Poverty denie...
Histology and histochemistry of the testis and ovary of the platyfish, Xiphophorus maculatus, from birth to sexual maturity The gonads of 3-day- to 7-month-old male and female platyfish (Xiphophorus maculatus) were examined for the presence of delta 5-3 beta-hydroxysteroid dehyd... MP Schrei...