Results 31 to 40 of about 28,191 (167)
Powerful representation of the poor? German welfare associations' narrative advocacy during COVID‐19
Policy Studies Journal, EarlyView.Abstract The COVID‐19 pandemic sparked unprecedented experimentation in the German social assistance system, leading to changes previously considered impracticable by policymakers. This included a sanctions moratorium, easier access to benefits, and temporary cash transfers, all of which were advocated by welfare associations—key organized interests ...
Christopher Smith Ochoa
wiley +1 more source
Simvastatin inhibit glucose uptake through insulin receptor dependent IRS1/PI3K/Akt pathway in mouse myotubes [PDF]
, 2015 他汀类药物是羟甲基戊二酸单酰辅酶A(3-hydroxy-3-methylglutaryl-CoA，HMG-CoA)还原酶抑制剂，可竞争性抑制内源性胆固醇的合成。大量研究表明长期服用他汀类药物可增加新发糖尿病的发病风险，但具体机制尚不清楚。 本实验使用辛伐他汀及胆固醇代谢中间产物甲羟戊酸内酯干预小鼠骨骼肌细胞(由小鼠成肌细胞C2C12细胞分化而来)，采用免疫印迹法（immunoblotting）、流式细胞术、细胞毒性试验和葡萄糖消耗试验，研究辛伐他汀和甲羟戊酸内酯对骨骼肌细胞葡萄糖代谢的影响及其作用机制 ...
梁晓静
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT This study demonstrates a new strategy for modifying the boron content to address stress‐relief cracking (SRC) in the 7CrMoVTiB10.10 alloy. First, coarse‐grained heat‐affected zone (CGHAZ) specimens with different boron contents were prepared via simulated welding thermal cycles.
Dongdong Zhang +3 more
wiley +1 more source
Gaoya dianqi, 2012 针对±800 kV换流阀多重阀绝缘试验因试验回路尺寸大、试验电压高等造成试验实施难度很大的问题,笔者通过采用等效模拟负载模拟部分阀段,试验研究了±800 kV换流阀多重阀的直流电压试验技术、雷电冲击试验技术、操作冲击试验技术。研究表明,此种试验方法是可行的。
张小勇 +7 more
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Effect of Neu5Ac supplementation on learning and memory in weanling rats and rat pups [PDF]
, 2016 研究背景：新生儿生长发育对营养物质有特殊的要求，任何营养素的匮乏对机体的正常生长和器官结构功能的发育都有深远影响，对脑发育的影响尤为重要。早期营养对大脑的结构和功能有着不可逆转的影响，一旦错过大脑发育的关键期，产生的缺陷后天将无法弥补。新生儿期营养素的缺乏会影响其认知功能。 N-乙酰神经氨酸（N-acetylneuraminicacids，Neu5Ac）是人体中最常见的唾液酸。Neu5Ac在人体中普遍存在，在脑组织及母乳中含量较高；唾液酸作用于神经元细胞膜及突触，在神经系统中产生重要作用 ...
卞冬生
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Review of Policy Research, Volume 43, Issue 3, May 2026.ABSTRACT Public appointments shape the top‐level bureaucracy by serving as a gateway for professionals with different profiles, chosen based on different criteria. In general, the literature has been more interested in analyzing appointments based on merit or sponsorship, based on verification of loyalty to the government or technical competence ...
André Vaz Lopes +1 more
wiley +1 more source
Dianci bileiqi, 1984 1984年5月,我们利用在西德参加IECTC36、SC36B、SC36C的机会,参观了一个研究所和三个电瓷厂,现简介如下,以供同行参考.一、高压大容量输变电研究所（FGH）该研究所位于西德的Mannheim.它重点研究交直流输变电,有大电流试验室、高压试验室、电工试验室、绝缘子部 ...
蔡国材, 周义华
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The mechanism of BaP and DDT co-exposure induced DNA damage via MAPK signal pathway [PDF]
, 2016 【目的】 苯并(a)芘(benzo[a]pyrene，BaP)是多环芳烃类化合物的典型代表之一，于各种环境介质中广泛存在，具有很强的致癌性，被国际癌症研究机构列为1类致癌物。滴滴涕(2，2-bis(4-chlorophenyl)-1，1，1-trichloroethane，DDT)曾是生产及使用范围最广的一类有机氯农药，在环境中非常难于降解，具有高亲脂性，可以对哺乳动物的肝脏、肾脏、神经等系统造成损害。BaP和DDT常共存于环境并可通过食物链的生物放大作用富集于人体，危害人类健康。因此 ...
刘敏
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT High‐capacity SiOx/graphite (SiO/G) anodes offer great potential for advancing lithium‐ion battery technology; however, their practical application is limited by low initial coulombic efficiency (ICE) and rapid capacity decay. These challenges primarily arise from unstable phase transitions and the formation of the solid electrolyte interphase
Wan‐Xing Zhang +14 more
wiley +1 more source
Dianci bileiqi, 1975 在进行外部绝缘工频电压试验时,现行国标GB 311—64(高压电气设备绝缘试验电压和试验方法)和GB775—64(绝缘子试验方法)都对试验装置的短路电流有明确的规定:“在试验电压下应满足下列要求:①在干燥状态下进行外部绝缘试验时,试验装置高压侧的稳态短路电流有效值应不小于0.1安。②在淋雨状态下进行外部绝缘试验时,短路电流的最大幅值应不小于0.7安 ...
西安电瓷研究所一室试验组
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