Results 91 to 100 of about 32,081 (263)

The minimum marriageable age policy process in the United States: An advocacy coalition framework analysis

open access: yesReview of Policy Research, EarlyView.
Abstract Early marriage—defined as marriage before age 18—has been shown to constitute a major obstacle to women's development with negative impacts on their health, education, and economic development. For several decades, the issue has been a major topic of global policy discussions with organizations like the United Nations advocating for global ...
Ene Ikpebe
wiley   +1 more source

引用にもとづく雑誌クラスタリング法の開発 [PDF]

open access: yes, 2008
目的:本稿では,雑誌を引用に基づき各学術分野ごとにクラスタリングするための新しい手法を提案する.対象:JCR2004 Science Edition CD-ROM版に収録されている5964誌の被引用データより,各誌の被引用比率ベクトルを作成し解析を行なった.方法:k-meansに基づく,独自に開発したクラスタリングツールを利用した.距離にはコサイン距離(1-cosθ)を用いてクラスタリングを行なった.結果:被引用比率ベクトル空間において各学術分野が形成すると見られるスパイク状の領域が確認された ...
児玉 閲, 天野 晃
core  

Urban sustainability commitment: Actor constellations and motivations

open access: yesReview of Policy Research, EarlyView.
Abstract In recent years, cities have increasingly committed to sustainable urban development, despite it being a voluntary task. This paper investigates the causes behind this commitment by focusing on local policy‐makers and their motivation rather than viewing cities as unitary actors.
Svenja Katharina Schwarz   +1 more
wiley   +1 more source

富硒米中某些化学形态硒含量的测定

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2001
【目的】测定富硒米中某些化学形态硒的含量, 为将富硒米用于肿瘤预防提供科学根据。【方法】2, 3-二氨基萘 荧光分析法测定富硒米中总硒、无机硒、有机硒含量;CNBr-2 , 3-二氨基萘荧光分析法测定硒蛋氨酸中的硒含量。【结果】夏、 秋季收获的富硒米中总硒含量分别为(2.71±0.97)μg/ g ,(9.87 ±1.18)μg/ g , 均大大地高于普通米, P
杨容甫, 范仕贤
doaj  

Analysis on the climate characteristics of local rainstorm in inland Taizhou from 1981 to 2010(台州1981~2010年内陆局地性暴雨气候特征分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2015
利用NCEP、fnl再分析资料和常规探测资料分析1981~2010年台州市局地暴雨的时空分布,并进行天气分型,对平均形势和典型个例进行了对比分析.结果表明:(1)台州局地暴雨日约占总暴雨日数的1/3,月际变化显著;局地暴雨总体上呈北多南少分布;(2)5~6月暴雨主要由西风带类造成,8~9月主要由东风带造成,7月各类暴雨均有发生.热带系统、移动低槽、南海台风是引发台州局地暴雨最多的系统.局地暴雨对于水汽输送和动力条件的要求比大暴雨要低得多.各型范围暴雨和局地暴雨在850 hPa形势场上有较明显的差异;(3)
WANGHuihui(汪卉卉)   +1 more
doaj   +1 more source

A Study on the Effect of RMB Internationalization on China’s Financial Security [PDF]

open access: yes, 2016
在金融全球化的推动下,我国经济实力和对外贸易规模不断壮大,人民币在全球范围内的使用量不断增大,已经成为世界第四大支付货币,随着人民币加入SDR货币篮子,其国际化的步伐已经越来越快。然而我国金融实力还很薄弱,人民币国际化必然会对金融安全产生重大影响。一方面,人民币国际化将可能增加铸币税收入,减轻外债压力,促进经济发展,推进金融市场改革及提高商业银行的“三性”,从而提升金融安全的水平。另一方面,人民币国际化也会使我国经济金融遭受冲击的可能性增加、降低货币政策的有效性以及增加商业银行的利率风险 ...
苏清锋
core  

Public perception of Ghana's Free Senior High School policy: A north–south comparative analysis

open access: yesReview of Policy Research, EarlyView.
Abstract Ghana's Free Senior High School (SHS) policy, implemented in 2017, aims to increase access to secondary education, promote equity, enhance educational outcomes, and foster human capital development. This study examines public perception of the Free SHS policy, focusing on the variations between the northern and southern regions of Ghana and ...
Michael K. Dzordzormenyoh   +3 more
wiley   +1 more source

黑龙江龙口自然保护区黑熊春季生境选择

open access: yes野生动物学报, 2010
分别于2008年4~5月和2009年4~5月,在龙口自然保护区对黑熊春季生境选择进行了研究,野外工作共设置87个10 m×10 m样方,并调查12个生态因子,其中利用样方41个,对照样方46个。通过Vanderploeg &Scavia选择指数得到,黑熊喜爱选择处于高海拔(>450 m)、上坡位有石砬子且草本盖度适中(10%~40%)的生境,倾向选择乔木密度高(>10株/100 m2)、郁闭度大(>40%)、灌木密度较低(30°)且向阳的针阔混交林。主成分分析与资源选择函数分析共同得到海拔、坡度、坡位 ...
陈洋, 夏茜, 王文, 沈广爽
doaj  

Coalitions and Characters: Tracing the Maturity of Sweden's Preventing and Countering Violent Extremism Policies

open access: yesReview of Policy Research, EarlyView.
ABSTRACT We trace the shift from a nascent to a mature policy subsystem by examining a hitherto overlooked aspect in policy process scholarship: the relationship between advocacy coalition beliefs and the narratives they express over time. The empirical focus of this case study is Sweden's Preventing and Countering Violent Extremism (P/CVE) policies ...
Simone Grännsjö   +3 more
wiley   +1 more source

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