Results 131 to 140 of about 52,960 (211)
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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Inhibitory effects of simeprevir on Staphylococcusepidermidis and itsbiofilm in vitro. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2023 Li Y +8 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Lithium‐selenium (Li‐Se) batteries have attracted considerable attention due to their high theoretical specific capacity and the intrinsically good electronic conductivity of selenium. Nevertheless, low active‐material utilization, parasitic side reactions, and sluggish reaction kinetics hinder their practical application.
Yanan Fu +8 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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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo +6 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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Effect of glycosaminoglycans with different degrees of sulfation on chondrogenesis. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2023 Zheng W, Cai MX, Peng H, Liu M, Liu X.
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Sexuality, Gender &Policy, Volume 9, Issue 2, May 2026.ABSTRACT Masculinity significantly influences men's health‐seeking behaviors, yet its intersection with legal frameworks and healthcare access in Sub‐Saharan Africa remains underexplored. This mixed‐methods study investigates how gender norms and structural barriers influence healthcare experiences among 60 middle‐aged men (aged 30–60 years) in Yaoundé,
Ikekhwa Albert Ikhile +1 more
wiley +1 more source
Dianci bileiqi, 2011 专利申请号:CN200610060904.9公开号:CN101083164申请日:2006.05.29公开日:2007.12.05申请人:深圳市富诚高压电气有限公司本发明涉及一种避雷器装置,包括避雷器支架体和避雷器体,所述避雷器体包括外套和连接于所述外套上端部的高压端连接螺栓,在所述外套内装有非线性电阻 ...
doaj
[Research progresses in ex vivo liver perfusion technology]. [PDF]
Zhonghua Gan Zang Bing Za ZhiLiu QY, Zhao Q, He XS.
europepmc +1 more source