Results 241 to 250 of about 133,217 (307)
The Use of Testicular Sperm Extraction in Male Infertility Patients Without Azoospermia. [PDF]
CureusWald M.
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Improved birth rates via rehydration of mouse freeze-dried spermatozoa using high-temperature ultrapure water. [PDF]
PLoS OneYamaji K +4 more
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Human Pathology, 1988
Spermatozoa have not previously been described within the prostate gland. Nine of one hundred prostates of nonhospitalized males obtained from autopsy during the course of medicolegal death investigation were found to contain spermatozoa. The potential role of spermatozoa in the pathogenesis of corpora amylacea/calculi formation, granulomatous ...
G, Nelson, D E, Culberson, W A, Gardner
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Spermatozoa have not previously been described within the prostate gland. Nine of one hundred prostates of nonhospitalized males obtained from autopsy during the course of medicolegal death investigation were found to contain spermatozoa. The potential role of spermatozoa in the pathogenesis of corpora amylacea/calculi formation, granulomatous ...
G, Nelson, D E, Culberson, W A, Gardner
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Capacitation of Rabbit Spermatozoa
Nature, 1958SUMMARY The capacity of rabbit spermatozoa to penetrate the zona pellucida of the ovum has been reported to depend upon pre-conditioning within the reproductive tract of the oestrous female. The present experiments show that spermatozoa can be capacitated in the uteri and uterine tubes of rabbits ovariectomized 1 month previously, in the ...
R W, NOYES, A, WALTON, C E, ADAMS
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2004
Publisher Summary The chapter describes the structures and functions of sea urchin spermatozoa. Methods for the isolation of different parts of the sea urchin sperm are discussed. Sea urchin sperm are specialized for five functions: (1) oxidative phosphorylation to produce ATP, (2) flagellar motility, (3) the acrosome reaction, (4) binding to the egg,
Victor D, Vacquier, Noritaka, Hirohashi
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Publisher Summary The chapter describes the structures and functions of sea urchin spermatozoa. Methods for the isolation of different parts of the sea urchin sperm are discussed. Sea urchin sperm are specialized for five functions: (1) oxidative phosphorylation to produce ATP, (2) flagellar motility, (3) the acrosome reaction, (4) binding to the egg,
Victor D, Vacquier, Noritaka, Hirohashi
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Spermatozoa Activity Comparator
Andrologia, 2009Spermatozoen-Motilitats-Comparator Zusammenfassung: Es wird ein neuartiges Gerat vorgestellt, mit welchem versucht wird, eine objektive Motilitatsbestimmung der Spermatozoen durchzufuhren. Das Prinzip besteht darin, die Spermatozoen in zwei voneinander getrennte Kapillaren einzugeben, wobei in jeder ein anderes Medium enthalten ist, in welches ...
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Biological Reviews, 1951
Summaryi. The head of the sea‐urchin spermatozoon is pear‐shaped and axially symmetrical. The sub‐microscopic morphology of the middle piece has not been investigated, but the tail, which terminates in an axial fibre, probably contains spiral or coiled structures, as in mammalian spermatozoa.2.
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Summaryi. The head of the sea‐urchin spermatozoon is pear‐shaped and axially symmetrical. The sub‐microscopic morphology of the middle piece has not been investigated, but the tail, which terminates in an axial fibre, probably contains spiral or coiled structures, as in mammalian spermatozoa.2.
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Forensic Spermatozoa Detection
American Journal of Forensic Medicine & Pathology, 2019AbstractSemen is crucial evidence for some sex crimes, with its sole confirmation being sperm detection. The success of sperm detection is dependent on all levels of preanalytic and analytic procedures. Specimen collection must be performed by well-trained and competent forensic physicians as well as forensic nurses, with preservation done properly ...
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Journal of Experimental Biology, 1950
ABSTRACT The number of spermatozoa in a sample of sea-urchin semen (Echinus esculentus) can be accurately estimated by measuring the amount of light scattered and absorbed by a subsample composed of semen diluted with sea water. A ‘Spekker’ photoelectric absorptiometer was used for the measurements, with a cell 1 cm. long.
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ABSTRACT The number of spermatozoa in a sample of sea-urchin semen (Echinus esculentus) can be accurately estimated by measuring the amount of light scattered and absorbed by a subsample composed of semen diluted with sea water. A ‘Spekker’ photoelectric absorptiometer was used for the measurements, with a cell 1 cm. long.
openaire +1 more source