Epidemiologic methods for investigating male fecundity
نویسندگان
چکیده
منابع مشابه
Epidemiologic methods for investigating male fecundity
Fertility is a couple concept that has been measured since the beginning of demography, and male fecundity (his biological capacity to reproduce) is a component of the fertility rate. Unfortunately, we have no way of measuring the male component directly, although several indirect markers can be used. Population registers can be used to monitor the proportion of childless couples, couples who r...
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امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...
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During the past several years there has been a growing interest in epidemiologic investigation, particularly in the field of non-infectious diseases. Although a few books devoted to epidemiology are available, for the most part the subject has been presented in public health and preventive medicine textbooks, in which methodology has often taken second place to a descriptive epidemiology of spe...
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ژورنال
عنوان ژورنال: Asian Journal of Andrology
سال: 2014
ISSN: 1008-682X
DOI: 10.4103/1008-682x.122198