排序方式： 共有29条查询结果，搜索用时 16 毫秒
21.
V A Yonker K P Young S K Beecham S Horwitz K Cousin 《Bulletin of the Medical Library Association》1990,78(1):49-56
This study was designed to make a comparative evaluation of the performance of MEDLINE in covering serial literature. Forensic medicine was chosen because it is an interdisciplinary subject area that would test MEDLARS at the periphery of the system. The evaluation of database coverage was based upon articles included in the bibliographies of scholars in the field of forensic medicine. This method was considered appropriate for characterizing work used by researchers in this field. The results of comparing MEDLINE to other databases evoked some concerns about the selective indexing policy of MEDLINE in serving the interests of those working in forensic medicine. 相似文献
22.
Robert B. Horwitz 《The Communication Review》2013,16(3):311-348
Office of Communication of the United Church of Christ v. Federal Communications Commission (1966), sometimes known as the “WLBT” case, was an instance where local citizens successfully challenged the broadcast license of a racist Mississippi broadcaster. The challenge worked in large part because it was tied to a larger social movement, that of Civil Rights. The effort resulted in the expansion of the legal doctrine of standing (that is, who could bring an action before regulatory agencies and courts) to normal citizens, and thus sparked the growth of citizen activism and participatory politics in various spheres, including consumer rights, environmental protection, and, of course, broadcast reform. The article tells the story of the case and its chief protagonist, Reverend Everett C. Parker. 相似文献
23.
This study involves the application of bond graphs to the generation of heat by cells in brown adipose tissue. In the first portion of this paper, data are presented to show the types of signals that can be measured at several sites in the system controlling thermogenesis—signals travelling from the brain to the tissue as well as signals over a feedback pathway from spinal cord temperature receptors back to the brain. Bond graphs are developed for several components of the system with an emphasis being placed on graphs describing the alternative mechanisms proposed for cellular energy conversion. The power flow is calculated using ENPORT for one mechanism for different values of plasma membrane resistance. 相似文献
24.
Kristine Marceau Briana N. Horwitz Jurgita Narusyte Jody M. Ganiban Erica L. Spotts David Reiss Jenae M. Neiderhiser 《Child development》2013,84(6):2031-2046
Studies of adolescent or parent‐based twins suggest that gene–environment correlation (rGE) is an important mechanism underlying parent–adolescent relationships. However, information on how parents' and children's genes and environments influence correlated parent and child behaviors is needed to distinguish types of rGE. The present study used the novel Extended Children of Twins model to distinguish types of rGE underlying associations between negative parenting and adolescent (age 11–22 years) externalizing problems with a Swedish sample of 909 twin parents and their adolescent offspring and a U.S.‐based sample of 405 adolescent siblings and their parents. Results suggest that evocative rGE, not passive rGE or direct environmental effects of parenting on adolescent externalizing, explains associations between maternal and paternal negativity and adolescent externalizing problems. 相似文献
25.
Robert B. Horwitz 《The Information Society》2013,29(3):181-204
Abstract Corporate mergers and the consolidation of ownership in the American communications arena have long been sources of concern. U.S. regulatory and antitrust policy traditionally attempted to secure a “diversity of voices” structurally, largely through rules regarding ownership. Although the meaning of diversity was always problematic and undertheorized, the Federal Communications Commission long set ceilings on the numbers of broadcast outlets any single person or corporation could own and enacted cross-ownership rules such as a prohibition against a corporation owning a newspaper and broadcast outlets in the same market. These rules, and the FCC's authority to make them, were upheld, occasionally even compelled, by the federal appellate courts. In the last 20 years, however, legal trends, in conjunction with political developments, have undermined the diversity rationales behind ownership rules and associated structural regulations of mass media. Paradoxically, even as media corporations are becoming larger and presumably more powerful, ownership regulations are being rescinded or struck down. This article explains this history. It concludes with a suggestion that the First Amendment metaphor of a marketplace of ideas is misplaced, and of how our thinking about media ownership and diversity might be better served by the metaphor of a mixed media system. 相似文献
26.
DeFriez CB Morton DA Horwitz DS Eckel CM Foreman KB Albertine KH 《Anatomical sciences education》2011,4(5):285-293
A challenge for new residents and senior residents preparing for board examinations is refreshing their knowledge of basic science disciplines, such as human gross anatomy. The Department of Orthopaedics at the University of Utah School of Medicine has for many years held an annual Orthopedic Resident Anatomy Review Course during the summer months for all of its residents. The primary purpose of the course is to renew competencies in basic science disciplines so that incoming residents more quickly reach a level of functional proficiency and to afford senior residents a platform to teach their junior colleagues. Before 2005, this course was conducted with minimal participation from anyone outside of the Department of Orthopaedics. Many of the residents voiced concerns that the educational benefits were not proportionate to the time invested. To improve the teaching of orthopedic-related anatomy, an educational collaboration between the Departments of Neurobiology and Anatomy and Orthopaedics was established in 2004 and continues to the present time. The major objectives of refining the course pedagogy, developing a Course Manual and Dissection Guide, and evaluating the results by administering a course survey questionnaire are described in this article. Implementation of all facets of the revised course has resulted in better participation by orthopedic faculty and more favorable reviews by the participating residents. Based on current levels of interest and positive comments from course participants, the Anatomy and Orthopedic faculty course directors plan to continue to develop course materials and pedagogy. 相似文献
27.
Sandra Wooltorton Len Collard Pierre Horwitz Anne Poelina David Palmer 《Environmental Education Research》2020,26(7):917-934
AbstractBuilding on a methodology of Cooperative Inquiry, the outcomes of five interconnected place-based learning projects from Australia are synthesised and elaborated in this paper. The methodology can facilitate the everyday living and sharing of an Earth-based consciousness: one that enriches Transformative Sustainability Education (TSE) through recognising meanings and stories in landscape, and celebrates Indigenous ways of knowing, being and doing. Indigenous-led environmental education is shown to link with one of the longest continuous environmental education systems in the world and it is contended that because of its ongoing history, environmental education carries a cultural obligation. In Australia, every landscape is Indigenous and storied, and all Australians have an inherent right to learn that joy in place, along with the responsibility to care for it. Teaching and learning a relationship with place as family, is one way that environmental education can lead that campaign. This place-based methodology is a lifetime commitment involving everyday actions for change, a whole-of-education dedication. 相似文献
28.
Economic evaluation research in the context of Child Welfare policy: a structured literature review and recommendations 总被引：1，自引：0，他引：1
Goldhaber-Fiebert JD Snowden LR Wulczyn F Landsverk J Horwitz SM 《Child abuse & neglect》2011,35(9):722-740
Objectives
With over 1 million children served by the US Child Welfare system at a cost of $20 billion annually, this study examines the economic evaluation literature on interventions to improve outcomes for children at risk for and currently involved with the system, identifies areas where additional research is needed, and discusses the use of decision-analytic modeling to advance Child Welfare policy and practice.Methods
The review included 19 repositories of peer-reviewed and non-peer-reviewed “gray” literatures, including items in English published before November, 2009. Original research articles were included if they evaluated interventions based on costs and outcomes. Review articles were included to assess the relevance of these techniques over time and to highlight the increasing discussion of methods needed to undertake such research. Items were categorized by their focus on: interventions for the US Child Welfare system; primary prevention of entry into the system; and use of models to make long-term projections of costs and outcomes.Results
Searches identified 2,640 articles, with 49 ultimately included (19 reviews and 30 original research articles). Between 1988 and 2009, reviews consistently advocated economic evaluation and increasingly provided methodological guidance. 21 of the original research articles focused on Child Welfare, while 9 focused on child mental health. Of the 21 Child Welfare articles, 81% (17) focused on the US system. 47% (8/17) focused exclusively on primary prevention, though 83% of the US system, peer-reviewed articles focused exclusively on prevention (5/6). 9 of the 17 articles included empirical follow-up (mean sample size: 264 individuals; mean follow-up: 3.8 years). 10 of the 17 articles used modeling to project longer-term outcomes, but 80% of the articles using modeling were not peer-reviewed. Although 60% of modeling studies included interventions for children in the system, all peer-reviewed modeling articles focused on prevention.Conclusions
Methodological guidance for economic evaluations in Child Welfare is increasingly available. Such analyses are feasible given the availability of nationally representative data on children involved with Child Welfare and evidence-based interventions.Practice implications
Policy analyses considering the long-term costs and effects of interventions to improve Child Welfare outcomes are scarce, feasible, and urgently needed. 相似文献29.
This study examined English as a foreign language (EFL) spelling development amongst 233 fifth‐grade, eighth‐grade and 10th‐grade Hebrew first‐language speakers to examine effects of English orthographic exposure on spelling. Good and poor speller differences were examined regarding the acquisition of novel phonemes (/æ/, /Λ/ and //) and orthographic conventions (/ð/, /θ/, // and silent ‘e’). Hebrew measures included standardised spelling and orthographic and phonological tasks. Experimental English measures included real‐word and pseudoword spellings, orthographic tasks and standardised spellings. Results showed significant differences in spelling accuracy between good and poor spellers at all grades. Spelling accuracy for most conventions did not improve after the eighth grade. Spellings of consonantal clusters, initial h and /ð/ differed between good and poor spellers in the fifth grade only. Hebrew spelling was one of the strongest predictors of EFL real‐word and pseudoword spellings in both fifth and eighth grades. Implications for teaching practice are discussed. 相似文献