Results 251 to 260 of about 2,793,995 (298)
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Cultural change and the reproductive cycle
Social Science & Medicine, 1992What we regard as 'normal' or 'natural' with respect to human female reproductive physiology differs greatly from the reproductive cycle experienced during most of human existence. Frequent ovulatory menstrual cycles really represent repeated abortive reproductive cycles and are unphysiological. A number of medical conditions, some of great importance,
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Reproductive cycles of marine mammals
Animal Reproduction Science, 2011Marine mammals conform to the general mammalian reproductive system centered on the hypothalamic-pituitary-gonadal axis. Most marine mammals are long-lived and of large body size with lesser reproductive rates than many other animals, a consequence of their interaction with the marine environment where the demands of acquiring resources from the ocean ...
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Life cycles and reproduction of Rhizostomeae
In the present study we reviewed the life cycles and reproduction strategies of the order Rhizostomeae. We found 28 species with described life cycles representing ∼30% of the valid species. The metagenetic life cycle of most scyphozoans, which includes the benthic asexually-reproducing polyp and the pelagic sexually-reproducing medusa, is exhibited bySchiariti, Agustin +4 more
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Sleep and the reproductive cycle: A review
Health Care for Women International, 1990Women of all ages have been found to have a higher rate of sleep disturbances than men. Attempts to determine whether hormonal changes marking their reproductive lives render women more vulnerable to emotional stress and to concomitant sleep disturbances are the focus of this article.
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Reproductive cycles of the domestic bitch
Animal Reproduction Science, 2011Domestic dogs are monoestrous, typically non-seasonal, polytocous, spontaneous ovulators and have a spontaneous luteal phase slightly longer (by approx 5 day) than the 64±1day luteal phases of a 65±1day pregnancy, a phase followed by an obligate anestrus before the next 2-3 week "heat" (proestrus-estrus).
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An Ethnography of the Navajo Reproductive Cycle
American Indian Quarterly, 1982All aspects of the reproductive cycle were considered in a research project conducted on the Navajo reservation in 1978.1 The research, which focused on menopause, had two goals: (1) to describe menopause for a non-industrial society, and (2) to test hypotheses regarding potential cultural influences in the experience of menopausal symptoms. The Navajo
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Pharmacological control of reproduction cycles
Veterinary Record, 1979G E, Lamming, J P, Foster, D C, Bulman
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