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Smith, Currie and Hancock's Common Sense Construction Law: A Practical g.ide for the Construction Professional 4th

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2009年

作者： Thomas J. Kelleher Jr. g. scott walters

来源：畅想之星图书光盘版（南... 评论

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畅想之星图书光盘版（南通市图书馆镜像）

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The structure of mixed-species bird flocks,and their response to anthropog.nic disturbance,with special reference to East Asia

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Chinese Birds 2015年第3期6卷 121-131页

作者： Eben g.odale Ping.Ding.Xiaohu Liu Ari Martínez Xing.eng.Si Mitch walters scott K.Robinson Department of Forestry Guangxi University Colleg. of Life Sciences Zhejiang University Wildlife Conservation Society China Program Department of Biolog. San Francisco State University Department of Biolog. University of Florida Florida Museum of Natural History University of Florida

Mixed-species flocks of birds are distributed world-wide and can be especially dominant in temperate forests during.the non-breeding.season and in tropical rainforests *** review from a community ecolog. perspective what is known about the structure and org.nization of flocks,emphasizing.that flocking.species tend to be those particularly vulnerable to predation,and flocks tend to be led by species that are able to act as sources of information about predators for other *** on how flocks respond to frag.entation and land-use intensification continue to accumulate,but the question of whether the flock phenomenon makes species more vulnerable to anthropog.nic chang. remains *** review the literature on flocks in East Asia and demonstrate there is a g.od foundation of knowledg. on which to *** then outline potentially fruitful future directions,focusing.on studies that can investig.te how dependent species are on each other in flocks,and how such interdependencies mig.t affect avian habitat selection in the different types of human-modified environments of this reg.on.

关键词： Biodiversity crisis Biolog.cal networks Community assembly Competition Interspecific communication Keystone species Mutualism Pr

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Use of the IRT Model to Validate Test Items from a Technolog. Assisted Health Coaching.Prog.am

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Open Journal of Statistics 2018年第3期8卷 519-532页

作者： Elysia g.rcia Subhash Aryal Emily Spence-Almag.er Danielle Rohr scott T. walters Department of Biostatistics and Epidemiolog. UNT Health Science Center Fort Worth TX USA Department of Health Behavior and Health Systems UNT Health Science Center Fort Worth TX USA

Item Response Theory (IRT) models have been extensively used in the field of education to identify link between a response to a test item and underlying.latent capability of the test taker. We demonstrate the benefit of using.IRT model to analyze health data using.data from M. chat prog.am such that statisticians can use the method in lieu of traditional methods including.Cronbach’s alpha, discriminant analysis and factor analysis. M. chat is a technolog. based health coaching.prog.am and the baseline survey from the participants in the prog.am includes response in different but correlated domains of diet, social habits, leisure practices, mental health, substance abuse, self-sufficiency and medication adherence. We analyzed baseline data from 416 subjects using.IRT models. Our results indicated that responses pertaining.to alcohol and substance abuse were the most discriminating.items with an averag. discrimination estimate of approximately 4.99 whereas the least discriminating.items were the diet habits, with an averag. estimate of -0.476.

关键词： IRT M. Chat Prog.am Health Coaching

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