Results 131 to 140 of about 32,158 (231)
Fear in Public Policy Compliance: Citizens' Response to Crisis‐Induced Policies
ABSTRACT This article brings together social psychology and public policy literature in a mixed‐methods research design to explore how fear influences non‐compliance with challenging policies during crises. Building on Terror Management Theory, we argue that fear affects individual citizens' compliance tendencies.
Stella Ladi +3 more
wiley +1 more source
随着柔性直流输电技术与大功率电力电子技术的发展,高压直流输电技术得到了不断地发展,而高压直流断路器已成为限制直流电网发展的主要瓶颈问题之一。现有的机械式高压直流断路器能够在几十ms内断开电路,但对于高压直流输电系统,远不能达到要求。采用高速电磁斥力机构作为机械开关的操动机构能够克服上述缺点。文中对以电磁斥力机构作为操动机构的强制过零型高压直流断路器的拓扑结构和工作原理进行了详细介绍,并针对其工作原理,提出控制需求,进而对其控制单元进行了研究。最后在自研的40.5 k ...
邵敏 +6 more
doaj
MK2 inhibitor selectively reduces alkali burn-induced inflammation and neovascularization in cornea [PDF]
眼化学烧伤是一类常见的眼外伤疾病,特别是在发展中国家。与酸性烧伤相比,碱性烧伤更为常见。碱性物质可快速穿透眼前房,导致慢性炎症和角膜浑浊,从而导致严重且持久的视觉缺损。尽管角膜移植手术是一项有效的治疗方法,然而其成功与否取决于角膜的炎症和新生血管是否得到控制。尽管目前有许多用于治疗角膜炎症和新生血管的药物,然而由于其有一定的副作用或仅仅通过缓解症状而非从根本途径进行治疗,因此亟须从发病机制入手寻找新的治疗办法。 持久的角膜炎症与新生血管,不仅会导致永久的视觉缺失,还会使行角膜手术的时机推迟 ...
陈艳丰
core
Europeanization and Health Policy in the European Union During Covid‐19 Pandemic: The Case of Greece
ABSTRACT The main purpose of this paper is to study and evaluate the efforts to respond to the covid‐19 pandemic in the EU and Greece, and to understand the capacity of the Greek health system to deal with such crises. The main questions we are called to answer are: What initiatives have been developed at EU level to address the covid‐19 pandemic? Have
Georgios Maris, Foteini Koulouri
wiley +1 more source
The epigenetic mechanism of imprinted gene IGF2 regulated by MEN1 in hepatocellular carcinogenesis [PDF]
原发性肝癌是肝细胞或肝内胆管上皮细胞发生的恶性肿瘤。死亡率仅次于胃癌和食道癌,其中肝细胞癌(hepatocellularcarcinoma,HCC)占原发性肝癌的90%。我们实验室围绕menin复合物调控的组蛋白甲基化与疾病发生关系开展了较系统深入的研究,证明了menin在肝细胞肝癌、非小细胞型肺癌及恶性黑色素瘤等非内分泌系统肿瘤中的重要生物学功能,阐明了menin调控组蛋白甲基化修饰的规律及机制。胰岛素样生长因子——2(insulinlikegrowthfactor2,IGF2 ...
丁丽红
core
How New Issues Become Polarized: Partisan Triggers and Subsystem Shopping in Early AI Policymaking
ABSTRACT Early AI policymaking in the United States appeared bipartisan, but subsequent developments raise the question of whether AI policy will become more polarized over time. To examine how partisanship takes root around novel policy issues, we perform a mixed‐methods study, analyzing survey data from 129 state legislators in 44 states and ...
Robin Jacobson +2 more
wiley +1 more source
Simvastatin inhibit glucose uptake through insulin receptor dependent IRS1/PI3K/Akt pathway in mouse myotubes [PDF]
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
core
ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi +7 more
wiley +1 more source
ASEA公司在超高压输电方面的研究工作,是在AEP—ASEA超高压联合研究机构[1][2]内进行的,其目的是: 1.从理论及实践的角度,探讨最高的系统电压; 2.根据选定的切实可行的系统电压范围,研究电力系统及设备。 根据联合研究机构的分工,AEP(美国电力公司)负责系统方面的研究(包括线路设计),ASEA(瑞典通用电气公司)主要考虑设备方面的研制。在研究过程中,经常交换意见互通情报,保证了研究计划的顺利完成。
朱士全
doaj
The molecular mechanism of antioxidant effect of astaxanthin and preparation of its nanosuspensions [PDF]
虾青素(astaxanthin,3,3'-二羟基-4,4'-二酮-β,β'胡萝卜素)属于叶黄素类β-胡萝卜素。研究发现虾青素对人类健康很有益处,对许多疾病都有很好的治疗保护作用。它主要的药理作用包括:抗氧化、抗肿瘤、抗炎、对心血管保护作用及神经保护作用等。 前期研究表明,虾青素的抗溃疡作用与氧化应激密切相关,但未在分子水平进行深入研究。因此,本课题以胃癌细胞为研究对象,采用Westernblot法检测虾青素刺激后氧化还原信号通路关键蛋白的激活情况,通过DCFH-DA法检测细胞内ROS的改变 ...
梁信芳
core

