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天花粉蛋白质与苦瓜子蛋白质改变DNA构型的活性I.DNA解旋与链结 被引量:9
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作者 琦祖和 蒋效松 +1 位作者 杨显荣 李慧云 《中草药》 CAS CSCD 北大核心 1999年第11期807-810,共4页
为研究中药有效成分天花粉蛋白质(TCS)与苦瓜子蛋白质( MMC)的生物学活性,以 细胞遗传物质DNA为底物,经分子生物学技术分析,发现超盘旋双链DNA发生解旋和链结,单链 DNA发生断链,在合适条件下,已解旋和断链的... 为研究中药有效成分天花粉蛋白质(TCS)与苦瓜子蛋白质( MMC)的生物学活性,以 细胞遗传物质DNA为底物,经分子生物学技术分析,发现超盘旋双链DNA发生解旋和链结,单链 DNA发生断链,在合适条件下,已解旋和断链的分子还可重新盘绕,再成超盘旋,极微量的蛋白质 即表现出很强的作用。这一活性与1型DNA拓扑异构酶相同。 展开更多
关键词 天花粉蛋白质 苦瓜子蛋白质 DNA 解旋 链结
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天花粉蛋白质注射液治疗异位妊娠28例
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作者 王笑春 叶傲 《适宜诊疗技术》 1997年第2期49-50,共2页
异位妊娠是危胶育龄妇女生命和健康的常见病,通常采用手术治疗和保守治疗,年轻并期望生育又害怕手术的患者,常要求采用保守性治疗。我院于1993年1月至1994年2月.应用天花粉蛋白质注射液治疗异位妊娠28例取得较好的效果,报告如下。
关键词 天花粉蛋白质注射液 异位妊娠 药物治疗 副反应
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Review on Dating Methods:Numerical Dating in the Quaternary Geology of High Asia 被引量:2
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作者 Matthias Kuhle Sabine Kuhle 《Journal of Mountain Science》 SCIE CSCD 2010年第2期105-122,共18页
Over the past few years, OSL and TCN datings of glacial material from High Asia have come into fashion. To this day, however, these techniques do not permit safe calibration. The intensity of the cosmic ray flux is be... Over the past few years, OSL and TCN datings of glacial material from High Asia have come into fashion. To this day, however, these techniques do not permit safe calibration. The intensity of the cosmic ray flux is being modulated by the solar and terrestrial magnetic fields and their secular fluctuations in the past. So far, these variations cannot be converted into the respective local TCN production rates for High Asia. We have reason to believe that the ages that are being calculated despite these uneertainties are generally overestimated. This assessment is supported by eonventional radiocarbon dates and above" all by the glacial chronology developed independently on the basis of the Quaternary geological method. The strongly emerging evidence for a much more extensive LGM glaciation of High Asia is, however, either being ignored or rejected by many authors, solely on the basis of the above-mentioned uncalibrated datings. This self-conceit based on the "dating fallacy", as we call it, should be avoided since it goes decidedly against the standards of the scientific method established in Quaternary geology and makes a fundamental scientific discussion impossible. 展开更多
关键词 Calibration of numerical dating Geomagnetic field excursions Solar activity Interface problem Tibetan ice sheet Dating fallacy
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