Results 141 to 150 of about 1,026,823 (242)

Compliance in Regulatory Gray Areas: The Case of the Organic Seed Standard

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Adaptive regulations, designed to balance flexibility with accountability, can embed provisions that unintentionally leave room for firms to shirk on their responsibilities by exploiting flexibility. We call these provisions “regulatory gray areas,” and ask: how should we understand (non‐)compliance in adaptive regulatory settings?
Liza Wood   +3 more
wiley   +1 more source

流体剪应力对血管内皮细胞的作用研究与应用

open access: yes, 2000
血管内皮层具有重要的生理功能。血流剪应力作用影响内皮细胞的形态结构、功能、增殖和迁移过程。其作用是通过应力转导途径实现的。对应力转导的深入研究,不仅揭示了人体血管内的许多生理过程,解释动脉粥样硬化等心血管疾病的病理机理 ...
陈槐卿, 胡江
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Partisanship, Deservingness, and the Attitudinal Policy Feedback Process for Social Policy

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT In an era of identity‐based partisan polarization, we examine whether social policies can still generate positive attitudinal feedback among beneficiaries. Drawing on nationally representative survey data, we demonstrate that partisanship conditions the policy feedback process through divergent perceptions of group deservingness.
Chris Faricy, Christopher Ellis
wiley   +1 more source

一种撞击流微通道反应器及应用

open access: yes, 2010
一种撞击流微通道反应器,于平板材料上刻有至少两条同轴或呈一定角度相向对撞的当量水力直径为0.1-2mm的微通道,且在对撞通道中间形成宽(或对撞距离)为0.5-10mm的撞击区。微通道可以平行阵列分布,连通至具有梯级分支构型的两个入口。可以单片组装,或将若干芯片按次序堆叠,压合成具有至多四个进料口的撞击流微通道反应器。本发明撞击流微反应器适用于瞬间完成的反应过程或反应沉淀过程,如生成液体或固体(超细粉体或纳米材料等)的气-液和液-液快速反应。微通道阵列形式实现了撞击区反应高度均匀性 ...
陈光文, 焦凤军, 初建胜
core  

Resource Substitution: Local Governments' Issue Attention and Policy Reinvention

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley   +1 more source

Raney镍催化松香加氢反应的机理

open access: yes, 2003
以 2 0 0号油为溶剂 ,Raney镍作催化剂研究了松香的加氢反应机理。由均匀设计实验方法得到松香加氢最优反应条件是 :温度 4 4 3K ,压力 5 0MPa ,催化剂用量占松香质量分数的 5 0 % ,溶剂质量分数为5 0 % ,反应时间 10 0min ,搅拌转速 6 0 0r/min ,据此确定了动力学的实验条件。在线跟踪测定了反应物浓度随反应时间变化的关系 ,使用EVIEWS软件进行参数拟合 ,经对Hougen Warson的 17种反应机理模型进行筛选 ,认为最可几的反应机理为 ...
李丽明   +4 more
core  

Leveraging an Unhappiness Lens for Smarter Policies

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Traditional policy research has largely focused on enhancing happiness or well‐being, privileging positive outcomes as the primary metric of success. We argue that a systematic focus on the drivers of unhappiness—rather than solely on happiness—offers a complementary analytical framework that can uncover hidden societal deficits and broaden ...
Marine Coupaud   +2 more
wiley   +1 more source

[Application of Kartogenin in cartilage tissue engineering]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jiang J, Zhang S, Lu W.
europepmc   +1 more source

Citrix瘦客户机/服务器计算技术在化工计算中的应用

open access: yes, 2002
文章介绍了网络计算的发展状况和瘦客户机/服务器计算模式的原理,并着重对Citrix瘦客户机/服务器计算技术进行了讨论。Citrix瘦客户机/服务器计算模式包括3个关键的组成部分,即多用户操作系统、可将应用程序的逻辑与用户界面分开的有效的计算技术、集中化的应用程序与及用户管理。本文给出了Citrix瘦客户机 ...
陆冬云, 郑建龙, 温浩
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