Specific and individual differences in motility between salmonid spermatozoa
نویسندگان
چکیده
منابع مشابه
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پژوهش کنونی با هدف مطالعه رابطه بین نوشتار بصورت انفرادی و گروهی با میزان دقت، پیچیدگی و سلاست دانش آموزان زبان انگلیسی حین نگارش متون انجام شده است. بمنظور دستیابی به این هدف، دو گروه از دانش آموزان مقطع متوسطه موسسه زبان کیش انتخاب شده و سپس از آنها خواسته شد تا 6 متن را با 6 موضوع متفاوت و طی 6 جلسه به نگارش در آورند. تجزیه و تحلیل این پژوهش با هدف اندازه گیری میزان دقت، پیچیدگی و سلاست نوشت...
15 صفحه اولMotility of spermatozoa at surfaces.
The hydrodynamic basis for the accumulation of spermatozoa at surfaces has been investigated. The general conclusion is that when spermatozoa arrive at a surface, they will remain there if the vector of the time-averaged thrust is directed towards that surface. This can arise in two basic ways. First, consider spermatozoa that maintain a three-dimensional waveform and roll (spin) as they progre...
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In this contribution we investigate the applicability of photon correlation techniques as a clinical tool for the evaluation of motility parameters of undiluted human sperm. Measurements on semen samples, selected visually for 'good' motility, yielded reproducible estimates of the fraction motile spermatozoa and the mean speed of the motile cells.
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ژورنال
عنوان ژورنال: Acta Ichthyologica et Piscatoria
سال: 1973
ISSN: 0137-1592,1734-1515
DOI: 10.3750/aip1973.03.1.02