منابع مشابه
Male Contraception
Very few options for men to initiate fertility control are currently available. Due to the potential public health impact of a novel method of contraception for men in the developed and developing world, a number of organizations are conducting or supporting studies which focus on the male contraceptive aspect of reproductive health. These include bilateral and multilateral donors, national gov...
متن کامل[Male contraception].
Clear evidence shows that many men and women would welcome new male methods of contraception, but none have become available. The hormonal approach is based on suppression of gonadotropins and thus of testicular function and spermatogenesis, and has been investigated for several decades. This approach can achieve sufficient suppression of spermatogenesis for effective contraception in most men,...
متن کاملthe relationship between listening self efficacy, listening comprehension, gende, and age in male and female english learners
چکیده هدف اصلی تحقیق حاضر مطالعه و بررسی رابطه بین خودکارامدی شنیداری با درک شنیداری بود.همچنین رابطه درک شنیداری وخودکارآمدی شنیداری با جنسیت و رابطه خودکارامدی شنیداری با سن نیز مورد بررسی قرار گرفت.تعداد شصت زبان اموز-سی دختر و سی پسر- کانون زبان ایران در مرکز خرم آباد به صورت تصادفی انتخاب شدند. روشهای به کار رفته در جمع اوری داده ها عبارت بودند ازبرسشنامه خودکارآمدی و تست درک شنیداری لانگ...
15 صفحه اولTrends in male contraception.
Methods that are available for male contraception, namely coitus interruptus, condoms, and vasectomy, have been used since the 19th century. With the exceptions of a few improvements of these methods, no major progress has been made with respect to introducing new male contraceptives since then. It is extremely urgent to develop new, safe, effective, and reversible male contraceptive methods. A...
متن کاملAdvances in male contraception.
Despite significant advances in contraceptive options for women over the last 50 yr, world population continues to grow rapidly. Scientists and activists alike point to the devastating environmental impacts that population pressures have caused, including global warming from the developed world and hunger and disease in less developed areas. Moreover, almost half of all pregnancies are still un...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 2013
ISSN: 0268-1161,1460-2350
DOI: 10.1093/humrep/det214