Results 131 to 140 of about 49,529 (252)
China's Strategic Approach to Tech Diplomacy in a Time of Global Uncertainty
Global Policy, EarlyView.ABSTRACT In the wake of U.S.‐China technological competition and the COVID‐19 pandemic, “tech diplomacy” has gained prominence in Chinese political and academic discourse. This concept is often ideologically framed to critique Western hegemonic narratives perceived as hindering China's technological advancement.
Zhao Alexandre Huang, Xiang Meng
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2019 外泌体最早由Johnstone等在研究网织红细胞成熟过程中囊泡的形成时发现,是一种由各种活细胞通过内体途径产生并分泌的直径在40-100nm级的小囊泡,由脂质双分子层包裹[1]。在外泌体被发现的最初十几年中,它的生物学作用一直没有引起人们足够的重视,直到1996年,有科学家发现B淋巴细胞能够分泌具有抗原提呈作用的外泌体,这种外泌体携带有MHC-II类分子、共刺激分子和黏附分子,能够直接刺激效应CD4+T细胞进而产生抗肿瘤效应[2]。随后 ...
张传霞, 崔雅楠, 金浩范
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Progress on methods of T lymphocyte development in vitro. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2022 Li Y, Chen X.
europepmc +1 more source
Conservation Biology, EarlyView.Abstract The Natura 2000 (N2K) network of protected areas is one of the main tools for area‐based conservation in the European Union (EU), yet its role in preserving plant biodiversity requires better understanding. We examined data kept in the European Vegetation Archive from over 1.2 million vegetation plots and obtained over 14.2 million plant ...
Michele Di Musciano +41 more
wiley +1 more source
Research progress on the impact of anxiety and depression on embryo transfer outcomes of in vitro fertilization. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2023 Zhou Y, Sun Z, Song J.
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Conservation Biology, EarlyView.Abstract Measuring area‐based conservation outcomes in tropical forests is challenging due to cryptic human disturbances (e.g., hunting). As a result, comparative studies of management strategies providing quantitative outcomes remain scarce, especially in the Neotropics.
Lucy Perera‐Romero +5 more
wiley +1 more source
Dianci bileiqi, 2018 外引接地是降低风机接地电阻的常用措施,必须详细研究雷电流作用下风机外引接地的有效长度及其影响因素。利用PSCAD软件建立风机叶片、塔筒和外引接地系统模型,考虑冲击电流作用下外引水平接地体的散流特性和火花效应。讨论土壤电阻率、波头时间对外引接地有效长度的影响,拟合出相应函数关系。分析结果表明:采用外引接地措施能够降低接地体的冲击接地阻抗,但外引接地体存在一个明显的有效长度,超过有效长度后对降低冲击接地阻抗几乎没有效果。外引接地的有效长度随着波头时间和土壤电阻率的增加而增大,三者之间存在一个幂函数关系 ...
武振宇, 张克勇, 李晓航
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[Activity of curcumin against human cytomegalovirus infection in vitro]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2022 Ding X, Yue J, Dong B, Sean X L.
europepmc +1 more source
Conservation Biology, EarlyView.Abstract Illegal wildlife trade (IWT) is one of the largest global illegal activities, and it negatively affects biodiversity and sustainable development worldwide. DNA barcoding coupled with high‐throughput sequencing (i.e., metabarcoding) is useful in identifying taxa affected by IWT and has been used routinely for decades.
Maria Joana Ferreira da Silva +9 more
wiley +1 more source
Espin WH结构域抑制whirlin全长与espin M结构域在体外细胞相互作用
Zhongguo shiyan zhenduanxue, 2015 目的具体研究Espin的结构域与whirlin全长在体外细胞的相互作用。方法通过免疫共沉淀方法进一步研究Espin的多个结构域与whirlin全长在体外细胞的相互作用。结果在HEK293细胞中,Espin-A结构域、espin-P结构域与whirlin全长相互作用,espin M、espin WH结构域没有和whirlin全长存在相互作用。结论Espin WH结构域抑制whirlin全长与espin M结构域在体外细胞相互作用。
韦博 +6 more
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