搜索结果: 1-9 共查到“性科学 media”相关记录9条 . 查询时间(0.14 秒)
Comparison of glycerol and a zwitter ion buffer system as cryoprotective media for human spermatozoa. Effect on motility, penetration of zona-free hamster oocytes, and acrosin/proacrosin
spermatozoa human cryopreservation
2009/2/20
This study compared the cryoprotective effect of glycerol with that of a zwitter ion buffer system (TESTCY). Spermatozoa that are cryopreserved in the presence of glycerol possess a somewhat highe...
Media and dilution procedures tested to minimize handling effects on human, rabbit, and bull sperm for computer-assisted sperm analysis（CASA）
CASA holding time hyperactivation TALP PBS
2009/2/16
Proper handling of semen prior to computer-assisted sperm analysis (CASA) is critical if the analysis is to be representative of the fresh sample. The effects of diluting medium or dilution and ho...
Sperm function and choice of preparation media：comparison of Percoll and Accudenz discontinuous density gradients
Sperm maturity and creatine kinase motile sperm yield sperm activation chiortetracycline
2009/2/16
We compared the sperm populations prepared by Accudenz (35-65%) and Percoll (40-80%) density gradients in 21 normospermic specimens (concentration, 53.6 +/- 3.8 x 10(6) sperm/ml; motility, 44.5 +/...
Inhibition of steroidogenesis in neonatal Leydig cells by unknown factor（s）present in spent media of androgen-treated cultured testicular cells from adult rats
Leydig cell 5a-dihydrotestosterone methyltrienolone
2009/2/12
Treatment of cultured testicular cells from adult rats with 5 alpha-dihydrotestosterone (DHT; 10(-6) M) or the synthetic androgen methyltrienolone (R1881; 10(-6) M) inhibited Leydig cell 3 beta-hy...
Basal and FSH-stimulated steady state levels of SGP-2, alpha 2-macroglobulin, and testibumin in culture media of rat seminiferous tubules at defined stages of the epithelial cycle
Testis follicle-stimulating hormone SGP-2 a2-macroglobulin testibumin
2009/2/10
Production of several proteins by rat Sertoli cells is dependent on the stage of the cycle of the seminiferous epithelium. The authors have determined steady state levels and follicle-stimulating ...
Supplementation of the Thawing Media With Reduced Glutathione Improves Function and the In Vitro Fertilizing Ability of Boar Spermatozoa After Cryopreservation
Pig spermatozoa oxidative stress IVF capacitation status
2008/12/23
In this study, we evaluated the effects of glutathione (L-g-glutamyl-L-cysteinylglycine; GSH) supplementation of the thawing extender on semen parameters to compensate for the decrease in GSH conten...
Cooling and Freezing of Boar Spermatozoa：Supplementation of the Freezing Media With Reduced Glutathione Preserves Sperm Function
Pig spermatozoa antioxidants cryopreservation in vitro fertilization capacitation status
2008/12/23
In this study, we evaluated the effects of glutathione (L--glutamyl-L-cysteinylglycine; GSH) supplementation of the freezing extender on semen parameters during the cooling (2 hours at 5°C) and free...
Comparison of Six Density Gradient Media for Selection of Cryopreserved Donor Spermatozoa
Sperm separation silane-coated silica particles iodixanol donor semen
2008/12/22
The aim of our study was to evaluate the efficiency of 4 density gradient media for motile cryopreserved spermatozoa selection to Percoll (Kabi Pharmacia, Uppsala, Sweden) and to Puresperm (J.C.D. I...
性的传媒幻象（media images of sexuality）
传媒幻象 性
2008/4/16
它是指由各种各样的大众传播媒介（电视、报刊、广播、电影、街头广告等等）制造出来，又灌输给大众的对于各种性现象和性问题的印象。性社会学界和一般社会学界都认为，这些由传媒所制造和散布的印象，基本上是虚假的。
性的传媒幻象之所以基本上是虚假的，关键在于：传媒并没有什么科学研究的
成果来作为自己的基础，却每时每刻在宣讲着，人们的性现象、性活动和性关系现
在已经如何如何了。结果大众也就信以为真，把...