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4篇 您的检索式:作者名="M.Jimenez"
    题名 作者 年代 出处 被引量
1应用硫化染料的新型染色工艺显示文摘水资源的短缺在许多地区是一个人尽皆知的问题 ,而且水资源在某些地区亦处于必须好好保护的状态。这就是Clariant公司用硫化染料改善染色工艺的原因所在。改进后的Pad Ox染色工艺不仅清洁 ,并且比传统的工艺耗水量低得多 ,同时工艺废水中所含游离染料的量比众多传统工艺要小得多。这个以保护环境而设计的轧染工艺既简单又通用 ,又能达到现有工艺同样的效果。M.Jimenez N·Estapé 吴芳群 罗艳 2003国际纺织导报2003,31,4:5
2First‐trimester detection of structural abnormalities and the role of aneuploidy markers显示文摘M.Grande M.Arigita V.Borobio J. M.Jimenez S.Fernandez A.Borrell 2012Ultrasound Obstet Gynecol2012,,2:1
3New approach to assess sperm DNA fragmentation dynamics: Fine-tuning mathematical models显示文摘Background: Sperm DNA fragmentation(sDF) has been proved to be an important parameter in order to predict in vitro the potential fertility of a semen sample. Colloid centrifugation could be a suitable technique to select those donkey sperm more resistant to DNA fragmentation after thawing. Previous studies have shown that to elucidate the latent damage of the DNA molecule, sDF should be assessed dynamically, where the rate of fragmentation between treatments indicates how resistant the DNA is to iatrogenic damage. The rate of fragmentation is calculated using the slope of a linear regression equation. However, it has not been studied if s DF dynamics fit this model. The objectives of this study were to evaluate the effect of different after-thawing centrifugation protocols on sperm DNA fragmentation and elucidate the most accurate mathematical model(linear regression, exponential or polynomial) for DNA fragmentation over time in frozen-thawed donkey semen.Results: After submitting post-thaw semen samples to no centrifugation(UDC), sperm washing(SW) or single layer centrifugation(SLC) protocols, sD F values after 6 h of incubation were significantly lower in SLC samples than in SW or UDC.Coefficient of determination(R^2) values were significantly higher for a second order polynomial model than for linear or exponential. The highest values for acceleration of fragmentation(aSDF) were obtained for SW, fol owed by SLC and UDC.Conclusion: SLC after thawing seems to preserve longer DNA longevity in comparison to UDC and SW. Moreover,the fine-tuning of models has shown that sDF dynamics in frozen-thawed donkey semen fit a second order polynomial model, which implies that fragmentation rate is not constant and fragmentation acceleration must be taken into account to elucidate hidden damage in the DNA molecule.Isabel Ortiz Jesus Dorado Jane Morrell Jaime Gosalvez Francisco Crespo Juan M.Jimenez Manuel Hidalgo 2017Journal of Animal Science and Biotechnology2017,8,3:0
4单次授精:减少死胎的同时保持同等繁殖水平显示文摘母猪的排卵70%发生在发情期。然而,后备母猪和经产母猪在从发情初期到排卵的时间间隔上存在巨大的个体差异,影响了在最佳时间进行配种的可行性。因此,为了获得高受胎率,通常需要进行正确的发情检测和至少两次含大剂量精子的配种。因此,一般情况下母猪在发情期间需配种2~3次,配种间隔为12 h^24 h。刘新军 张涛 M.V.Falceto J.L.Ubeda R.Santamaria M.Jimenez R.Menjon 2015国外畜牧学(猪与禽)2015,35,3:0
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