Results 131 to 140 of about 59,300 (233)
Guangtongxin yanjiu, 2010 异步光码分多址（OCDMA）系统是近年来关注的热点,但对适用于该系统的二维码字的研究还比较少。文章分析了扩展同余码（EQC）在异步OCDMA系统中的相关性,并进一步提出一种用于异步OCDMA系统的二维时间/频率组合码的构造方法。分析该地址码的自相关和互相关特性的结果表明:由EQC和光正交码（OOC）构成的二维时间/频率组合码EQC/OOC具有良好的自相关和互相关特性。
李永萍, 张兴周
doaj
Policy Studies Journal, EarlyView.Abstract We examine whether and how public participation in policymaking contributes towards fostering stakeholder support for policy proposals formulated in the bureaucratic arena. We explain how key markers of procedural fairness describing both the participation process and policymakers' presentations of it during the decision justification stage co‐
Adriana Bunea, Idunn Nørbech
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2005 目的 探讨血清可溶性Fas（sFas）和转化生长因子 β1（TGF β1）水平的变化与乙肝后相关性肝硬化、肝癌的关系。方法 对 2 0例肝炎、2 8例HBV相关性肝硬化及 2 0例肝癌患者血清sFas、TGF β1、血清透明质酸、Ⅲ型前胶原、Ⅳ型胶原进行检测 ,同时对其中 4 3例慢性乙肝和肝硬化患者进行HBV DNA的定量检测。结果 HBV相关性肝硬化、肝癌患者血清sFas和TGF β1水平明显升高 ,与正常对照比较 ,差异有显著意义 （P
林向阳 +5 more
doaj
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
Gaoya dianqi, 2005 相控开关的核心问题之一是最佳投切相位的确定,而最佳投切相位又与断路器的预击穿绝缘特性密切相关。针对断路器预击穿特性对最佳同步关合目标相位的影响,文中引入了关合系数k,并对其进行分类讨论,详细分析了断路器合闸时的预击穿物理过程,同时考虑到断路器动作时间分散性,得到了不同绝缘强度下降率（RDDS）与机械分散性条件下的最佳投切相位计算公式。
丁富华, 邹积岩, 段雄英
doaj
Topics as Outcomes: Modeling the Influence of Intergovernmental Grants on Policy Diffusion
Policy Studies Journal, EarlyView.ABSTRACT Intergovernmental grants stimulate the diffusion of policy reforms, as the federal government provides states with a financial incentive to adopt policies aligned with federal priorities. Less is known about the extent to which these grants also stimulate horizontal diffusion across states.
NaLette Brodnax, Sarah James
wiley +1 more source
胆囊腺癌pAKT、VEGF、微血管和微淋巴生成的检测及其临床意义
Zhongguo shiyan zhenduanxue, 2011 目的研究胆囊腺癌组织中磷酸化丝氨酸/苏氨酸激酶（pAKT）、血管内皮生长因子（VEGF）蛋白的表达、微血管密度（MVD）和微淋巴管密度（MLD）及其临床意义。方法应用免疫组织化学SP法检测46例胆囊腺癌pAKT、VEGF、微血管和微淋巴管密度。结果胆囊腺癌pAKT和VEGF的阳性表达率分别为87.0%（40/46）和91.3%（42/46）。pAKT的阳性表达与临床分期和淋巴结转移显著相关,统计学有显著性差异 ...
王甘露 +5 more
doaj
Policy Studies Journal, EarlyView.ABSTRACT Why did Australia go from the White Australia Policy, which excluded non‐whites, to institutionalizing multiculturalism policy in the 1970s? This question defies traditional political ideologies of the major political parties, which had long supported the White Australia Policy. This article is a rare empirical demonstration of the Five‐Thread
Julius C. S. Mok
wiley +1 more source
[Association Between Social Anxiety Symptoms and Brain Metabolism]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanZhao Z +7 more
europepmc +1 more source
Blocking the Poor: Status Quo Bias in Policy Congruence
Policy Studies Journal, EarlyView.ABSTRACT Research on unequal responsiveness has shown that policies tend to align more closely with the preferences of high‐income citizens than low‐income citizens. Using comparative data on opinions and policies, we suggest that this inequality primarily results from status quo bias; asymmetric blocking power drives unequal congruence rather than ...
Mikael Persson, Anders Sundell
wiley +1 more source