Results 131 to 140 of about 162,194 (223)

树干茎流研究方法及其述评

Shuitu Baochi Xuebao, 2004
树干茎流研究是国内外森林水文学研究中的重要内容,对国内外树干茎流的研究方法及研究成果进行综述,并将树干茎流研究方法分为野外实测法和数学模型估测法,分别进行了系统分类和简要述评。树干茎流的野外实测法有观测标准株的选取与树干茎流水的收集两个关键技术环节。树干茎流的数学模型分为3种类型,即经验模型、概念模型、理论模型。经验模型反映的是树干茎流量(或茎流流率)与降雨量的定量关系,概念模型描述的是茎流量与降雨特征及林分特征因子的数量关系,理论模型刻画了树干茎流形成的机理和动态变化过程(树干茎流随降雨的时空变化规律)
周择福 张光灿 刘霞 薄金燕 李小磊
doaj  

Long‐Term Time Horizons and Support for Public Investment

Policy Studies Journal, EarlyView.
ABSTRACT Generating public support for long‐term public investment may require understanding what citizens perceive as the “long term” in politics and how these perceptions shape their preferences. Across two studies, we find that UK citizens generally understand “long term” as 5–10 years.
Matthew Barnfield, Karl Pike, Philip Cowley   +2 more
wiley   +1 more source

[Shape-aware cross-modal domain adaptive segmentation model]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu Y, Qi L, Diao Z, Feng G, Li Y, Jiang Z.   +5 more
europepmc   +1 more source

Coalition Opportunity Structures and Advocacy Coordination in Consensus and Majoritarian Democracies

Policy Studies Journal, EarlyView.
ABSTRACT Research on advocacy coalitions suggests that belief homophily—the tendency of actors to coordinate based on shared policy beliefs—drives coalition formation. However, coalition opportunity structures, which are shaped by institutional contexts, may influence the extent to which belief homophily matters.
Keiichi Satoh, Antti Gronow, Tuomas Ylä‐Anttila, Ana Delicado, Luisa Schmidt, Pradip Swarnakar, Paul M. Wagner, Sun‐Jin Yun   +7 more
wiley   +1 more source

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

[Application of Animal Models in Research on Hypoxia-Related Diseases]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Xu Y, Zhou C, Liu X, Guo W, Zhou J.
europepmc   +1 more source

The Five‐Thread Model & Academic Policy Entrepreneurs: From the White Australia Policy to Multicultural Australia

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

[Research Advances in the Replication of Animal Models for Periodontal Diseases]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Wang F, Ma Y, Lyu X, Zhang K, Wang Y, Sheng J, Cao Y, Han X, Wang X.   +8 more
europepmc   +1 more source

A Natural Language Processing Approach to Identifying Partisan Framing of Climate Change Denialism, Fatalism, and Solutions in US Congressional Speeches

Policy Studies Journal, EarlyView.
ABSTRACT This study examines the evolution of climate change discourse in the United States Congress from 1987 to 2017, employing natural language processing (NLP) techniques to analyze floor speeches. Using a la carte (ALC) word embeddings, we investigate how Democratic and Republican members of Congress frame climate change, focusing on denialist ...
Joseph Charles Van Matre, Isabel L. Krakoff, Allegra H. Fullerton   +2 more
wiley   +1 more source

[Advances in Animal Modeling in the Study of Bone-Vascular Axis Comorbidities]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Li J, Zhou Y, Luo Y, Huang X, Zhang D, Liu X.   +5 more
europepmc   +1 more source