Results 61 to 70 of about 32,470 (201)
Linchuang shenzangbing zazhi, 2015 糖尿病肾脏疾病（diabetic kidney disease,DKD）是糖尿病（diabetes mellitus,DM）最常见并发症,是引起终末期肾脏疾病（end stage renal disease,ESRD）的主要原因之一。足细胞是位于肾小球基底膜（glomerular basement membrane,GBM）外侧的高度分化的细胞,有高度的结构和功能特异性,在维持肾小球滤过屏障的结构和功能上起着重要的作用。近年来研究发现足细胞损伤在DKD的发病机制中起着关键性作用 ...
胡春丽, 谢席胜, 冯胜刚
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Research for Correction Mechanism of Criminal Defective Evidence [PDF]
, 2016 检察机关依职权侦查案件时，瑕疵证据往往随之产生并客观存在，其原因归纳起来主要有两点：法律规定欠周全、侦查人员缺乏证据意识。在司法实践中，侦查人员有时只是违反了部分轻微的法律规定或者程序法，并没有触及相关的禁止性规定，也没有实质性侵犯当事人的宪法性权利。以此观之，瑕疵证据实际上具有法律上的证明价值，有助于调查和证明案件事实，原则上应当予以采纳。然而，此类证据因其本身收集程序和方法的“非法性”，被贴上了“瑕疵”的标签，进而使部分法学学者和司法实务者对证据的客观真实性提出了质疑 ...
方松伟
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Scientists in power plays: How substantive were scientists' narratives during the COVID‐19 pandemic?
Policy Studies Journal, EarlyView.Abstract Scientists who provide expert advice must engage with policy processes. Little is known about whether and how scientists deal with the political dynamics of policy processes that are inherent to policymaking. We study this question by building on the policy dimension concept within the Narrative Policy Framework.
Jule Ksinsik, Caroline Schlaufer
wiley +1 more source
The simulation of Madden-Julian Oscillation and the optimal forecast error analysis [PDF]
, 2016 热带季节内振荡（在大气中以Madden-JulianOscillation为主，以下简称MJO），是全球季节内尺度预报的最主要信号来源，在天气气候系统的预报中起着非常重要的作用。作为目前发现的全球最强的季节内准周期信号，国内外普遍认为MJO的预报是联系数值天气预报和季节预报的桥梁，能够填补中期预报与短期气候预测之间的延伸期预报时段的“缝隙”。自20世纪70年代Madden和Julian提出以来，MJO现已在国际上获得了广泛关注，其机理研究和预报开展已经成为了全球气候研究的热门方向之一 ...
李晓静
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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
A Study on The Impact Mechanism of Relationship Pluralism on Creativity —— Based on Employee Perspective [PDF]
, 2016 伴随着经济的发展，企业竞争越来越激烈。在以“创新”为大趋势的知识经济时代，员工个体的创造力受到前所未有的重视。个体层面的创造力有助于提升团队或组织的创造力，为企业带来独特性的竞争优势。知识是创造力的基本元素。随着信息技术地不断提升，员工能够更加快捷地与同事或者其他群体建立联系，从他们那里获取自身创造力所需要的知识。员工个体的关系多元化为其在工作中创造力的提升带来了机遇。有关多元化的研究已经引起学术界的重视。但通过对关系多元化研究相关文献的回顾时发现：学者大量研究了团队、组织层面的创造力 ...
李梦迪
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Narrative power in the narrative policy framework
Policy Studies Journal, EarlyView.Abstract The Narrative Policy Framework lacks clear and empirical explanations of power. Yet, the study of narratives is inherently the study of power in shaping policy outputs and decisions. We develop a conceptual model positing that expressions of power (power to, with, and over) may be discovered in narrative constructs (e.g., narrative structure ...
Elizabeth A. Shanahan +8 more
wiley +1 more source
土壤呼吸作用时空动态变化及其影响机制研究与展望. [PDF]
, 2009 测定不同陆地生态系统土壤呼吸速率及其时空波动,阐明其影响因子,对于全球碳素平衡预算和全球变化潜在效应估计是最为基本的数据。然而,有关土壤呼吸作用变异性及其影响因素的知识仍存在局限性,一些关键的过程和机制还有待阐明。该文综述了近年来土壤呼吸作用时空动态规律、影响机制和模拟方面的研究进展,指出环境因子和生物因子共同驱动着土壤呼吸作用的时间动态变化;土壤呼吸作用在不同时间尺度上还具有明显的空间异质性,这主要是植被覆盖、根系分布、主要的环境因素和土壤特性空间分布的异质性造成的 ...
周广胜., 韩广轩
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Policy Studies Journal, EarlyView.ABSTRACT We use grid‐group cultural theory (CT) to specify underspecified aspects of the Advocacy Coalition Framework (ACF). Our theoretical synthesis of CT and the ACF provides, first, an exhaustive typology of policy actors and their cultural cognitive biases that entail, guide, and constrain policy core beliefs about problem definitions and ...
Metodi Sotirov, Brendon Swedlow
wiley +1 more source
Entry and Molecular Regulation of White Spot Syndrome Virus (WSSV) into Crayfish Hpt cell [PDF]
, 2014 白斑综合征病毒(Whitespotsyndromevirus，WSSV)是对虾的主要病原，该病毒致死率高、传染性强、宿主范围广，是水生甲壳类动物中最为严重的病毒性病原之一。因此，加深对WSSV感染致病机理的理解，寻找高效抗病毒防治方法，意义重大。培养细胞是病毒感染研究的有力工具，在甲壳动物原代细胞培养研究中，螯虾造血组织干细胞(Haematopoietictissuestemcell，Hptcell)—Hpt细胞培养较为稳定，是WSSV感染研究的首选。本研究以红螯螯虾 ...
陈荣元
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