Results 201 to 210 of about 226,100 (242)
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Robotic Immobilization of Motile Sperm
2018 IEEE International Conference on Robotics and Automation (ICRA), 2018Manipulation of motile cells such as bacteria and sperm is required in both cell biology and clinical applications. For immobilizing a motile sperm, the sperm head and tail positions must be accurately tracked, interference of proximal sperms on the target sperm must be tackled, and the orientation of the sperm must be properly aligned with the ...
Zhuoran Zhang 0001 +9 more
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Metabolism of motile zebrafish sperm
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2011As metabolism of motile fish sperm is not well understood, the current study examined the metabolism of saline-activated zebrafish (Danio rerio) sperm. Activation of sperm with inhibitors of oxidative phosphorylation (potassium cyanide, 2,4 dinitrophenol or carbonyl cyanide 3-cholorophenylhydrazone) negatively impacted sperm motility by 60-90 s ...
R L, Ingermann +3 more
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Pharmacological stimulation of sperm motility
Human Reproduction, 1994The treatment of male factor infertility is a rapidly developing field. The introduction of microsurgical fertilization techniques allows assisted conception units to treat couples who previously would not have benefited from in-vitro fertilization techniques.
F, Lanzafame +4 more
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Bacterial effect on sperm motility
Urology, 1975Human semen containing normal number of sperm was exposed to concentrations of Escherichia coli varying from 500 to 10-8 colonies per cubic centimeter. A significant decrease in motility was abserved at 10-6 colonies per cubic centimeter.
G B, del Porto +2 more
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Sperm Motility Assessment by Videomicrography
Fertility and Sterility, 1981A technically simple, inexpensive method is described for measuring objective parameters of sperm motility. The instruments involved are commercially available, home-oriented videotape equipment. Quantitative measurements of sperm motility are made directly from the video image and are facilitated by use of an analysis transparency that is applied as ...
D F, Katz, J W, Overstreet
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The Effects of Prostaglandins on Sperm Motility
Fertility and Sterility, 1977Inflammatory exudates around intrauterine devices were found to produce large concentrations of prostaglandin F2alpha. To evaluate the effect of this substance, 100 semen specimens were incubated in concentrations 100 times greater than that found in normal semen. Motility indices were calculated, and significant inhibition of sperm motility was found.
M S, Cohen +3 more
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