Results 51 to 60 of about 11,319 (223)

The platform policy matrix: Promotion and regulation

open access: yesPolicy &Internet, Volume 17, Issue 1, March 2025.
Abstract This study provides a comprehensive analysis of policy measures adopted by countries in response to the rapid growth of digital platforms, which significantly impact various sectors and national economies. It examines the delicate balance between regulation and innovation, offering nuanced policy recommendations.
Junic Kim, Shanghe Ahn
wiley   +1 more source

成年黄山短尾猴春季昼间行为时间分配

open access: yes野生动物学报, 2008
2007年3~5月,采用焦点动物取样法对黄山野生猴谷YA1群黄山短尾猴成年个体行为时间分配进行系统观察。数据分析显示:黄山短尾猴成年个体日活动行为主要为休息(59.72%)、理毛(17.50%)和觅食(14.82%),其他行为如漫游(5.86%)、玩耍(0.04%)和其他(1.64%)时间花费较少,觅食高峰与投喂时间基本一致。老年组个体比成年组个体花费较多的时间用于休息(Z=-5.811 ...
王贵林   +3 more
doaj  

面向多元可控负荷调控的云边协同负荷资源分配策略

open access: yesDianxin kexue
针对多元可控负荷资源进行可控负荷管理时需要占用大量计算资源,且无法实现自动功率精准控制的问题,提出了一种面向多元可控负荷调控的云边协同负荷资源分配策略。首先,设计了云边协同调控架构,整合处理各种多元可控负荷资源数据;其次,考虑不同边缘节点计算任务的相似度,以所有计算任务的时间开销最小为优化目标,给出云端计算资源分配策略,合理分配计算资源;最后,通过基于自适应交叉—变异概率的遗传算法进行计算资源分配的求解。实验结果表明,所提算法在任务完成时间和执行成本上具有较为明显的优势,并且任务数量越多 ...
李思维, 靳莉, 于龙, 杜立石, 岳靓, 张喜润
doaj   +1 more source

Same money, different impact? The curving effect of European Structural and Investment Funds on EU support in Spain (1990–2019)

open access: yesEuropean Policy Analysis, Volume 11, Issue 1, Page 54-74, Winter 2025.
Abstract European Structural and Investment Funds (ESIF) engender European Union (EU) support in generating economic growth, but their effect is conditional on individual European identity and educational background. This study investigates whether the positive impact of ESIF spending on EU attitudes also depends on the alignment of funding with the ...
Joel Cantó   +2 more
wiley   +1 more source

白眉长臂猿在人工饲养条件下的交配行为

open access: yes野生动物学报, 1998
本文记录了白眉臂猿在人工饲养条件下的交配行为,发现其每年9月下旬至翌年2月中旬发情交配,交配时间为上午8:00-8:30和10:5011:20,交配姿势有面对面,蹲坐式和面对背三种,持续时间10秒-3分钟.交配要求安静,隐蔽的环境.
杨梅
doaj  

Prediction of pre‐eclampsia using maternal hemodynamic parameters at 12 + 0 to 15 + 6 weeks

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 2, Page 173-182, February 2025.
ABSTRACT Objectives To compare the maternal hemodynamic profile at 12 + 0 to 15 + 6 weeks' gestation in women who subsequently developed pre‐eclampsia (PE) and those who did not, and to assess the screening performance of maternal hemodynamic parameters for PE in combination with the Fetal Medicine Foundation (FMF) triple test, including maternal ...
X. Wang   +9 more
wiley   +1 more source

《谭政报告》对新时代做好思想政治教育工作的现实启示 [PDF]

open access: yes, 2019
《谭政报告》是继《古田会议决议》之后,我军政治工作的又一历史性文献,其关于思想政治教育的一些思想和基本原则,对当前我军的思想政治教育仍有着重要启示。一是要坚持辩证思维,克服片..
吴一敏, 王飞
core   +1 more source

Can overarching rules and coordination in polycentric governance help achieve pre‐identified institutional goals over time? Evidence from farmland governance in southeastern France

open access: yesPolicy Studies Journal, Volume 53, Issue 1, Page 29-48, February 2025.
Abstract The question of the performance of polycentric governance over time is insufficiently addressed in the literature. By performance, we refer to the ability of polycentric governance actors to design rules and engage in coordination processes that allow them to achieve their goals.
Grâce Kassis, Nathalie Bertrand
wiley   +1 more source

Anti-predation does not fully explain grouping in the Chinese water deer (Hydropotes Inermis) [PDF]

open access: yes, 2002
The grouping behavior of the Chinese water deer (Hydropotes inermis) was studied at Poyang Lake National Nature Reserve, Jiangxi, China. I made three predictions to test the hypothesis that grouping is an anti-predatory strategy: (1) group size is ...
Sun, Lixing
core   +1 more source

黄羊日活动的间分配的季节变化

open access: yes野生动物学报, 1999
本文对呼伦贝尔草原黄羊日活动时间分配季节变化及其影响因素进行了研究,发现采食是黄羊的主要活动,四季中所占时间百分比均超过50%.夏季黄羊每天有两个采食高峰,日活动中采食所占时间百分比为54.78%.春、秋两季也有两个采食高峰,但持续时间较夏季长.冬季采自所用时间明显增加,达到80.79%.四季日活动时间的差异,主要是由于食物的季节性变化和不同季节对食物选择而引起.统计发现,集群的大小同休息和警戒行为有明显的线性相关.黄羊(Proccapra gutturosa)是古北界蒙新区、东部草原亚区的特有物种 ...
关东明, 高中信
doaj  

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