Results 51 to 60 of about 1,217,469 (163)
There Is Always a Bigger Fish. Determinants of Power Perceptions in Swiss Biodiversity Policy
Policy Studies Journal, EarlyView.ABSTRACT The Advocacy Coalition Framework (ACF) views power as crucial in policy processes, but the nature of coalition power, its determinants, and how to empirically measure it remain understudied. In this article, we use a mixed method approach and social network analysis to explore power relationships in the biodiversity policy subsystem in ...
Alix d'Agostino +2 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2013 采用不同链长的有机硅烷作为表面修饰剂，在正庚烷/正丁醇中利用溶剂热合成法制备得到亲油性纳米ZSM-5分子筛.通过有机硅烷与氧化物晶种表面的羟基作用，其长链化学键合到晶种表面，形成保护层，既抑制了氧化物颗粒间的团聚，又控制了纳米ZSM-5的粒径.所制备的纳米ZSM-5平均粒径为20~70 nm，且粒径随着有机硅烷碳链长度的降低而逐渐减小.添加一定量的该纳米ZSM-5到碳氢燃料模型化合物正十二烷中，在管式反应器中（550 ℃，4 MPa）考察催化裂解行为，结果表明该亲油性纳米ZSM ...
LIUJia-zhen(刘家珍) +4 more
doaj +1 more source
Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy 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
四川大学学报. 自然科学版, 1985 本文应用Leray—Schauder度理论讨论了Hammerstein方程连续正解的存在性和个数.本文结果是[1]中某些结果的改进和推广.
严家鹤, 张庆雍
doaj
Zhejiang Daxue xuebao. Lixue ban, 2008 考察了非线性四阶三点边值问题的正解.通过构造适当的锥并且利用相应的积分方程证明了n个正解的存在性.主要工具是锥上的Krasnosel'skii不动点定理.
YAOQing-liu(姚庆六)
doaj +1 more source
Regional News, Regional Bias? Evidence From Media Discourses and Welfare Decisions in Germany
Policy Studies Journal, EarlyView.ABSTRACT How do media representations of immigrants shape their treatment by street‐level bureaucrats? Despite a uniform federal legal framework, decision‐making varies substantially across local welfare offices. Though prior research links national news reporting and policy implementation, little is known about how regional variation in news reporting
Stefanie Rueß
wiley +1 more source
哮喘患儿外周血CD25 与IFN-γ的水平变化及其相关性研究
Zhongshan Daxue xuebao. Yixue kexue ban, 2002 目的】探讨哮喘患儿外周血分化群(CD)25 与IFN-γ的水平变化及其两者在急性发作期的相互关系。【方法】 应用流式细胞仪(FCM)检测发作期、缓解期和正常小儿外周血的CD25+细胞数, 应用生物素-亲合素双抗体夹心酶联免疫吸 附分析术(ABC-ELISA)测定IFN-γ水平。【结果】哮喘缓解期CD25+细胞数(4.13 ±2.20)%和正常对照组(4.11 ±1.82)% 比较无显著性差异, P >0.05, 哮喘发作期CD25 +细胞数(8.61 ±3.30)%显著高于正常对照组和缓解组, P
黄花荣, 麦贤弟
doaj