Session 69: Factors Influencing Fertility and Infertility Treatment
نویسندگان
چکیده
منابع مشابه
Male fertility and infertility
in 30–50% of sub-fertile couples the male partner has poor semen quality, either because of low sperm count, poorly motile sperm or sperm with abnormal size and shape (morphology). This may result from inherent genetic factors, poor pre-natal testicular development or adult exposure to gonadotoxic agents. There are few proven therapies to improve semen quality. Therefore, the number and quality...
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We consider the complex Ginzburg-Landau equation with feedback control given by some delayed linear terms (possibly dependent of the past spatial average of the solution). We prove several bifurcation results by using the delay as parameter. We start by considering the case of the whole space and, later, that of a bounded domain with periodicity conditions. A linear stability analysis is made w...
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The average dairy cow survives only three lactations, reducing the availability of replacement heifers. Prenatal losses occur due to early embryonic mortality (about 40%), later embryo loss (up to 20% in high-yielding herds) or abortion (about 5%). A recent survey of 19 UK herds showed that 7.9% of calves were born dead and 3.4% died within 1 month. During the rearing phase, 6.7% of animals wer...
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Artificial insemination provides a method to inseminate a large number of females to a single sire that has been selected and proven to be an industry leader for economically relevant traits. Thus, genetic change in a herd can occur quickly through the use of artificial insemination. With natural service, herd bulls are also selected for economically relevant traits but are limited on the numbe...
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Tuberculosis (TB) is infectious but curable. In South Africa, TB treatment is free of charge at clinic level. However, many patients do not complete their treatment and develop multi-drug resistant TB (MDR-TB) and extensive drug resistant TB (XDR-TB) which is very expensive to treat and can be fatal. The researcher was therefore prompted to investigate how TB patients perceived the disease and ...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 2010
ISSN: 0268-1161,1460-2350
DOI: 10.1093/humrep/de.25.s1.69