نتایج جستجو برای: headed sperm cells

تعداد نتایج: 1418975  

Journal: :The journal of cetacean research and management 2023

The occurrence and distribution of cetacean species off northern Angola was examined using dedicated survey data incidental sighting records. Dedicated surveys for cetaceans were carried out during two geophysical seismic between August 2004 September 2005. A total 3,268hr effort collected, resulting in 779 on-effort sightings. There 263 sightings reported off-effort incidentally from other pla...

Journal: :Zygote 1998
Z Zhang H Xu M B Singh S D Russell

A protocol is described for individually collecting two populations of sperm cells, Svn and Sua, from pollen of Plumbago zeylanica. Pollen grains were burst in 10 mM MOPS buffer containing 0.8 M mannitol (pH 4.6). Paired sperm cells released from pollen were separated using a microinjector. Svn and Sua were then collected individually with a microinjector, based upon known size differences. Col...

Journal: :Journal of andrology 2006
Ron Hauser Leah Yogev Gedalia Paz Haim Yavetz Fuad Azem Joseph B Lessing Amnon Botchan

To compare the efficacy of 2 sperm-retrieval procedures, testicular sperm extraction (TESE) and testicular sperm aspiration (TESA), during the same procedure using the same subjects as their own controls. The presence of mature testicular sperm cells and motility were evaluated in 87 men with nonobstructive azoospermia (NOA) by means of multifocal TESE and multifocal TESA, which were performed ...

Journal: :iranian journal of veterinary research 2008
p. tajik m. r. hassan-nejad lamsoo

testicles were isolated from dromedary camels in a local slaughterhouse at breeding and non-breeding seasons. sperms were recovered from different parts of the epididymis (caput, corpus and cauda) and stained separately on slide glasses by eosin nigrosin staining method and dried by a hair dryer and carried to the laboratory. in the lab, slides were observed for evaluation of the proportion of ...

2015
B. M. van den Berg

The ability of sperm cells to develop colored formazan by reduction of MTT was used earlier to develop a spectrophotometric assay to determine the viability of sperm cells for several mammalian species. It was the objective of the present study to visualize microscopically the location of the formazan in boar sperm cells. The MTT staining process of boar sperm cells can be divided into a series...

Background and aims: According to psychological research female-headed households have a lot of physical and mental problems because they experience stress and anxiety more than the other women in general population. The aim of this study was to determine the quality of life and the associated factors in female-headed households under the Welfare Organization coverage of Ilam Province. Me...

Journal: :international journal of reproductive biomedicine 0
cyrus jalili sharareh ahmadi shiva roshankhah mohammadreza salahshoor

background: the predominant phytoestrogen in soy and derived products is the isoflavone genistein. genistein has antioxidant properties. morphine is a main psychoactive chemical in opium that can increase the generation of free radicals and therefore it could adversely affects the spermatogenesis. objective: the main goal was to investigate whether the genistein could protect morphine adverse e...

M. R. Hassan-Nejad Lamsoo P. Tajik,

Testicles were isolated from dromedary camels in a local slaughterhouse at breeding and non-breeding seasons. Sperms were recovered from different parts of the epididymis (caput, corpus and cauda) and stained separately on slide glasses by eosin nigrosin staining method and dried by a hair dryer and carried to the laboratory. In the lab, slides were observed for evaluation of the proportion of ...

Journal: :Nanoscale advances 2023

Protamine, a small, strongly positively-charged protein, plays key role in achieving chromatin condensation inside sperm cells and is also involved the formulation of nanoparticles for gene therapy and...

This study analysed factors influencing food security status of female headed farm households in Abia state, Nigeria. Multistage random sampling technique was employed in selecting 240 female headed farm households from whom data were collected using structured questionnaire. Data collected were analyzed using descriptive statistics, food security indices and probit regression technique. Result...

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