In this case, one of the causal sequences runs from high fertility to the need for relief and its consequent availability.doi:10.2307/2569979Notestein Frank W.Kiser Clyde V.Social ForcesNotestein, F. W., an...
Economic factors affecting human fertility in the developing areas of South Africa: A policy perspective. Agrekon 29(4):284-289.FAIRLAMB, CD, 1990. Economic factors affecting human fertility in the developing areas of South Africa: a policy perspective. Agrekon, 29(4)....
Industrialized regions have birth rates so low that their populations cannot be sustained; declines in birth rates are generally ascribed to socioeconomic and cultural factors, although human infertility is widespread. Decreasing fertility rates were already recorded around 1900 in Denmark, a few decades...
Factors affecting male fertility Any alteration that influences any of these steps will affect, to a varying degree, male fertility. Studies have shown that there may be a decline in male fertility with age, as some parameters such assperm concentrationor motility worsen. However, these changes i...
Industrialized regions have birth rates so low that their populations cannot be sustained; declines in birth rates are generally ascribed to socioeconomic and cultural factors, although human infertility is widespread. Decreasing fertility rates were already recorded around 1900 in Denmark, a few decades...
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semen quality. It was found that any factor that affects semen quality can affect male fertility. There are several modifiable factors affecting semen quality including air pollution, use of pesticides and harmful chemicals, exposure to excessive heat, and can lead to decreased male fertility. ...
Objective:To determine whether electrically stimulated Ca2+ influx can "rescue" fertilization and early embryogenesis in human oocytes that fail to fertilize after intracytoplasmic sperm injection (ICSI). Design:Prospective, randomized t... J Zhang,A Blaszczyk,J Grifo,... - 《Fertility & Sterility》...
Rall WF: Factors affecting the survival of mouse embryos cryopreserved by vitrification. Cryobiology. 1987, 24: 387-402. 10.1016/0011-2240(87)90042-3. Article CAS PubMed Google Scholar Lane M, Schoolcraft WB, Gardner DK: Vitrification of mouse and human blastocysts using a novel cryoloop cont...
Read the lesson called Factors Affecting Fertility in Men & Women to find out more about this topic. This lesson highlights the following objectives: Recall what male reproduction is dependent upon Explain why testosterone, estrogen, and progesterone are important for fertility ...