نتایج جستجو برای: scsa

تعداد نتایج: 162  

Journal: :Theriogenology 2010
K E M Hendricks L M Penfold D P Evenson M T Kaproth P J Hansen

Biological samples, including cryopreserved sperm, are routinely X-rayed during air shipment. The goal was to investigate the impact of X-irradiation used for checked and carry-on luggage on bovine sperm chromatin integrity and postfertilization in vitro embryonic development. Frozen domestic bull sperm (Bos taurus) (n=9 bulls) stored in a dry shipper (-160 degrees C) was screened by X-irradiat...

2017
Sergio Oehninger

tau.amegroups.com © Translational Andrology and Urology. All rights reserved. The authors present fair evidence indicating that sperm DNA fragmentation (SDF) testing is a useful diagnostic tool in male fertility evaluation. As such, they propose that SDF should be included in the evaluation of male factor fertility along with the semen analysis, and provide data for recommendation for testing u...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1974
T Aoki J R Stephenson S A Aaronson K C Hsu

In vitro, clonal BALB/3T3 mouse cells were transformed into nonproductive sarcoma cells by Kirsten murine sarcoma virus. The resulting cells are called K-BALB. Similarly, the Kirsten sarcoma virus and woolly monkey sarcoma virus transformed normal rat embryonic kidney (NRK) cells to nonproductive sarcoma cells K-NRK and W-NRK, respectively. The presence of sarcoma cell surface antigen (SCSA) on...

2001
Lipo Wang Sa Li Fuyu Tian

Chen and Aihara have showed recently that their chaotic simulated annealing (CSA) has better search ability for solving combinatorial optimization problems compared to both the Hopfield-Tank approach and stochastic simulated annealing (SSA). However, CSA is not guaranteed to find a globally optimal solution no matter how slowly annealing is carried out. In contrast, SSA is guaranteed to settle ...

Journal: :Reproductive toxicology 2013
Mohammad Reza Safarinejad Seyyed Alaeddin Asgari Alireza Farshi Gholamhossein Ghaedi Ali Asghar Kolahi Shahrokh Iravani Ali Reza Khoshdel

We evaluated the effects of opiate consumption on semen quality, sperm function, seminal plasma antioxidant capacity, and sperm DNA integrity. A total of 142 opiate addict men (group 1) were enrolled in the study and 146 healthy age matched male volunteers (group 2) served as controls. Two semen analyses were performed in all participants. Sperm chromatin structure assay (SCSA) was used to iden...

2001
Ernesto Villar-Cociña Eduardo Valencia-Morales

In this paper the kinetics of the pozzolanic reaction between lime (calcium hydroxide) and sugar cane straw ash with 20 and 30% of clay burned at 800 and 10000C is studied. A simple experimental technique where the conductivity is the experimental variable was used. A calibration curve was established for correlating the conductivity with the concentration of calcium hydroxide (CH). We elaborat...

2012
Yi Li Zhengxing Sun

High dimensional pose state space is the main challenge in articulated human motion tacking. In this paper, we propose a novel generative approach in the framework of artificial immune model, by which we try to widen the bottleneck with effective search strategy embedded in the extracted state subspace. Firstly, we learn the latent space of pose state and propose a manifold reconstruction metho...

Journal: :Reproductive biology 2009
Piotr Miciński Krzysztof Pawlicki Ewa Wielgus Michał Bochenek Iwona Tworkowska

In this study 60 couples undergoing intracytoplasmic sperm injection (ICSI) procedures were enrolled. All men were classified into two groups regarding to the DNA fractionation index (DFI) threshold value: group I < 15% and group II =or> 15%. In group I, median DFI was 4%, normal pre-implantation embryo development was observed and eleven pregnancies were achieved. In group II, median DFI was 2...

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