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中国对虾(Penaeus chinensis)精子ATP酶活力与生殖关系的探讨 被引量:9
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作者 冯北元 徐慕禹 +2 位作者 朱谨钊 周岭华 刘旭东 《海洋科学》 CAS CSCD 北大核心 1995年第2期33-36,共4页
首次报道了中国对虾精子存在有Na,K-ATP酶及Mg-ATP酶活力,并对 其生物功能进行了探讨。对来自不同季节的雌虾纳精囊中精子的两种ATP酶活力 进行了测定。酶分析的结果为春虾精子的 Na,K-ATP酶活力为 1.14... 首次报道了中国对虾精子存在有Na,K-ATP酶及Mg-ATP酶活力,并对 其生物功能进行了探讨。对来自不同季节的雌虾纳精囊中精子的两种ATP酶活力 进行了测定。酶分析的结果为春虾精子的 Na,K-ATP酶活力为 1.145±0.229μmol Pi/mg· h,秋虾则为 1. 058±0. 431μmol Pi/mg· h;春虾精子的 Mg-ATP酶活力为 1. 647±0. 691μmol Pi/mm· h,秋虾则为 1. 584±0. 315μmol Pi/mg· h。因此在表观 上,春虾精子的两种ATP酶活力均略高于秋虾,但差异不够显著。 展开更多
关键词 中国对虾 精子 ATP酶 生殖关系
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Y染色体异常及多态性与生殖关系的探讨 被引量:15
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作者 刘芳 史彩虹 +1 位作者 王厚照 周友泉 《中国优生与遗传杂志》 2010年第4期61-62,53,共3页
目的为了探讨Y染色体异常及多态性与生殖相关的临床效应。方法对3116例男性不育患者通过取外周血淋巴细胞培养,显带进行染色体核型分析。结果检出Y染色体异常及多态性99例,占全部被检患者的3.17%。Y染色体异常核型7例,占全部被检患者的0... 目的为了探讨Y染色体异常及多态性与生殖相关的临床效应。方法对3116例男性不育患者通过取外周血淋巴细胞培养,显带进行染色体核型分析。结果检出Y染色体异常及多态性99例,占全部被检患者的3.17%。Y染色体异常核型7例,占全部被检患者的0.22%,其中Y染色体结构异常5例,占全部被检患者的0.16%,Y染色体数目异常2例,占全部被检患者的0.06%。Y染色体多态性核型92例,占全部被检患者的2.95%,其中Y≥1834例,占全部被检者1.09%,Y≤2152例占全部被检者1.67%。Y染色体臂间倒位6例,占全部被检者0.19%。结论Y染色体异常及多态性能引起各种与生殖有关的临床效应,在遗传咨询工作中应引起足够的重视。 展开更多
关键词 Y染色体 异常 多态性 生殖关系
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The Analysis of Growth and Reproduction of Industrial Clusters Based on View of Ecological Coexistence
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作者 LIU Man-feng Song Ying 《Journal of Mathematics and System Science》 2014年第3期186-193,共8页
The behavior of industrial cluster is similar to the behavior of biological population, that is, the industrial cluster is seemed to be an ecological symbiotic system. The relationship between economic organizations i... The behavior of industrial cluster is similar to the behavior of biological population, that is, the industrial cluster is seemed to be an ecological symbiotic system. The relationship between economic organizations in the industrial cluster is similar to the relationship of species in ecological system, and symbiotic reciprocity, competition and cooperation are the basic. The ecological development is mainstream and direction of industrial cluster. In this paper, firstly, we studied the ecological symbiosis growth model of industry cluster, and tbund it being according to logistic growth model; secondly, we studied the growth and reproduction of economic organizations in industrial cluster in three different cases, which with only competition relations, only beneficial relations, and both competition and beneficial cooperation relationship between economic organizations, and finally, we determined the number of economical organizations when the industrial cluster attained ecological equilibrium. 展开更多
关键词 Ecological coexistence industrial clusters growth and reproduction.
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Transnationalization on the Technique of Assisted Human Reproduction
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作者 Edna Raquel Hogemann 《Sociology Study》 2014年第3期262-268,共7页
This paper's purpose is to present a reflective analysis about the process of transnationalization in which the technique of assisted human reproduction has been going to the extent that such a procedure has been rev... This paper's purpose is to present a reflective analysis about the process of transnationalization in which the technique of assisted human reproduction has been going to the extent that such a procedure has been revealed as a true "fertility tourism", offered through packages for those people who have financial conditions, but cannot through natural means to realize the dream of membership. Through the dialectic method of discourse, promoting the comparison of the thought of many authors who focus on issues such as globalization, commodification of human, technical exacerbation detriment of humans, and their interpersonal relations, the author seeks to introduce issues that are the order of day with respect to this global market arising from the tremendous advances reproductive techniques in a society marked by economic interests, it turns much more to the consumer and considers the human being as an additional asset to be sold, since its conception. The author acknowledges that they cease for tourism human reproduction is a trade that is worth of human frailty, because relying on one of the most intimate aspects of life: the desire to be a mother or father or ultimately, the perpetuation of the species. 展开更多
关键词 Transnationalization assisted reproduction TRADE
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