Results 31 to 40 of about 247,769 (181)
Zhongshan Daxue xuebao. Yixue kexue ban, 2001 【目的】探讨细胞周期调节因子在鼻咽癌复发中的作用。【方法】采用LsAB 法同时检测69 例患者原发和复发 鼻咽癌组织中p53、MDM2 、p21ras和p21WAF1蛋白的表达。【结果】复发癌与原发癌相比:阳性表达率方面, p53 蛋白(78 %和 80 %)或MDM2 蛋白(84%和83%)很相近, p21ras蛋白(73 %和93 %)或p21WAF1蛋白(52 %和84 %)明显下降;高表达率方面, p53 蛋白(42%和51 %)很相近, MDM2 蛋白(57 %和32 %)明显升高 ...
李锦添 +4 more
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Structured decision‐making as a framework to incorporate social equity into conservation decisions
Conservation Biology, EarlyView.Abstract Many conservation challenges require negotiating trade‐offs between the needs of different actors. Global frameworks such as the Kunming–Montreal Global Biodiversity Framework explicitly call for diverse participation and social equity in conservation decision‐making.
Emily Massingham +2 more
wiley +1 more source
乳腺癌根治术患者miRNA-23a表达水平与术后复发转移的关系
Zhongguo shiyan zhenduanxue, 2018 目的探讨乳腺癌根治术患者miRNA-23a表达水平与术后复发转移的关系。结果选取2013年3月至2016年3月本院收治的乳腺癌根治术患者160例,依据2年内复发转移情况分为复发组(n=50例)和未发组(n=110例),采用实时荧光定量聚合酶联反应法(RT-PCR)检测miRNA-23a表达水平,分析miRNA-23a表达水平与术后复发转移的关系。结果单因素分析结果显示,复发组和未发组肿瘤类型、直径、TNM分期、淋巴结转移、雌激素受体(ER)和孕激素受体(PR)、miRNA-23a表达水平比较 ...
周永安, 赵德庆
doaj
Subspecies taxonomy reflects social and geographic patterns of taxonomic effort in tetrapods
Conservation Biology, EarlyView.Abstract Subspecies have been used in conservation biology to account for intraspecific patterns in genetic diversity, which is crucial to long‐term population viability. Although over 3200 subspecies are currently assessed by the International Union for Conservation of Nature Red List, their biological relevance remains controversial.
Jhonny J. M. Guedes +3 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2013 目的探讨微小残留病（MRD）监测在B急淋（B-ALL）复发预测及指导治疗中的临床意义。方法选择2008年1月到2012年7月32例初治急性B淋巴细胞白血病160份骨髓标本,利用四色多参数流式细胞术（FCM）进行微小残留病检测。以CD45/SSC设门,选择2-3组四色抗体组合,从诱导化疗第33天开始,每1-3个月监测MRD一次,动态监测MRD变化与白血病复发的关系。结果按照诱导治疗第33天的MRD水平分成三组,高（MRD>1×10-2）,中（1×10-2≥MRD≥1×10-4）,低（MRD10 ...
孔令环 +4 more
doaj
Using the capabilities approach to achieve people‐centered conservation
Conservation Biology, EarlyView.Abstract Top‐down interventions carried out by state and nonstate institutions to conserve biodiversity and improve the lives of forest‐proximate people (FPP) in the Global South tend to reflect economistic understandings of human well‐being. More progressive and people‐centered conservation projects are guided by normative visions of how the world ...
Arthur Rodrigues +4 more
wiley +1 more source
Genomics‐informed management of ex situ populations
Conservation Biology, EarlyView.Abstract The European Association of Zoos and Aquariums (EAZA) manages insurance populations for hundreds of species through its EAZA ex situ programs (EEPs). EEPs help safeguard against extinction in the wild and provide source populations for genetic rescue programs.
Cock van Oosterhout +8 more
wiley +1 more source
, 2011 本发明涉及适用于酸性电解液液流储能电池的一种有机无机复合离子交换膜及其制备方法。本发明还涉及包含本发明聚合物离子交换膜的酸性电解液液流储能电池。该类复合离子交换膜制备方法简单，容易实现大批量生产。制备的复合离子交换膜具有优良力学强度，其酸性电解液液流储能电池中具有优良的质子传导性和优异的阻隔正负极离子渗透性 ...
史丁秦, 张华民, 李先锋
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Optimizing biodiversity offsetting for habitat succession and colonization dynamics
Conservation Biology, EarlyView.Abstract Biodiversity offsetting aims to compensate for ecological losses from development through conservation and restoration. However, its long‐term outcomes under repeated impact–offset cycles remain uncertain. Using a conceptual forest succession model, we evaluated how offset outcomes are affected by interactions among compensation scale ...
Konstans Wells +4 more
wiley +1 more source
, 2015 本发明提供了一种含氟聚酰亚胺红外低发射率复合薄膜材料及其制备方法。该材料由在含氟聚酰亚胺材料中添加1%～10%的纳米无机物形成的复合材料，其中纳米无机物以晶相粉粒分散在含氟聚酰亚胺中。实验证实，添加无机物后所形成的复合材料的热稳定性、耐环境性能以及红外低发射性能均有所提高，尤其是其红外发射率降低幅度较大，因此能够满足对稳定性要求很高的红外隐身材料的要求 ...
薛立新, 陈景, 刘秉鑫, 陈修碧
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