青少年的跳跃训练手段     

S·A·梅克豪诺辛  华谦 《辽宁体育科技》1985,(3)

经常可以见到一些青少年队员由于缺乏很好的身体条件比赛时不能形成有效的起跳。解决这个问题可以利用一种提高跳跃力量的训练计划,这个计划可从9—11岁少年开始实施。经过研究发现9—11岁少年使用这个计划和手段效果最好,特别是采用向上、向下、向前的越过各种障碍物的跳深练习。这些手段中也包括肌肉力量、耐力、灵活性、协调性的练习。各种方式的练习组合可从下列动作中选择出来进行:  相似文献   

The use of Ecological Momentary Assessment approaches in the study of sexually abused children     

Simonich H  Wonderlich S  Crosby R  Smyth JM  Thompson K  Redlin J  Mitchell J  Haseltine B 《Child abuse & neglect》2004,28(7):803-809

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A study of medical and health queries to web search engines     

Spink A  Yang Y  Jansen J  Nykanen P  Lorence DP  Ozmutlu S  Ozmutlu HC 《Health information and libraries journal》2004,21(1):44-51

This paper reports findings from an analysis of medical or health queries to different web search engines. We report results: (i). comparing samples of 10000 web queries taken randomly from 1.2 million query logs from the AlltheWeb.com and Excite.com commercial web search engines in 2001 for medical or health queries, (ii). comparing the 2001 findings from Excite and AlltheWeb.com users with results from a previous analysis of medical and health related queries from the Excite Web search engine for 1997 and 1999, and (iii). medical or health advice-seeking queries beginning with the word 'should'. Findings suggest: (i). a small percentage of web queries are medical or health related, (ii). the top five categories of medical or health queries were: general health, weight issues, reproductive health and puberty, pregnancy/obstetrics, and human relationships, and (iii). over time, the medical and health queries may have declined as a proportion of all web queries, as the use of specialized medical/health websites and e-commerce-related queries has increased. Findings provide insights into medical and health-related web querying and suggests some implications for the use of the general web search engines when seeking medical/health information.  相似文献   

How to create successful partnerships-a review of the literature     

Wildridge V  Childs S  Cawthra L  Madge B 《Health information and libraries journal》2004,21(Z1):3-19

This literature review covers a wide range of publications (articles, books, reports and government publications) that provide an overview of the wider topic of partnership working. It is not a systematic review, but the authors' personal review, drawing largely on the resources available in the King's Fund Library. Partnership working is a key component of the UK government's modernization agenda, particularly in the health field. However, the principles of achieving successful partnership are generally applicable. The review therefore concentrates on literature that can provide guidance for people planning to set up a partnership, or re-evaluating an existing partnership. The sections of this review comprise: definition of partnership working; types of partnership; partnership initiatives; drivers; critical success factors; barriers; benefits; the process of partnership working; evaluation and assessment tools; demolishing the Berlin Wall: government policy on partnership working; exemplars of library information service partnerships.  相似文献   

Child characteristics which impact accuracy of recall and suggestibility in preschoolers: is age the best predictor?     

Geddie L  Fradin S  Beer J 《Child abuse & neglect》2000,24(2):223-235

OBJECTIVE: The purpose of the present study was to determine whether individual difference factors of metamemory, intelligence, and temperament can improve the ability to predict accuracy of recall and suggestibility in preschoolers. METHOD: Fifty-six children ranging in age from 43 months to 83 months (M = 61, SD = 9) were recruited from 13 child care centers in a rural southeastern town. Children participated in a "Circus Day" event conducted by two female undergraduate psychology students dressed as clowns. Approximately 10 days (M = 10; SD = 2) after the event, children were interviewed regarding their experiences. RESULTS AND CONCLUSIONS: Bivariate correlations and multiple regression analyses were performed in order to determine which factors were related and unique contributors to accuracy of recall and suggestibility. Of principal importance is the finding that child characteristics such as metamemory ability, intellectual functioning, and temperament may indeed be helpful in determining a child's capacity to accurately recall information in an interview, although for the most part age is the best predictor. Findings also underscore the importance of considering a child's SES and race when planning and conducting interviews with young children. Possible explanations for these findings as well as implications for future research and clinical application are discussed.  相似文献   

A library-based bioinformatics services program     

Yarfitz S  Ketchell DS 《Bulletin of the Medical Library Association》2000,88(1):36-48

Support for molecular biology researchers has been limited to traditional library resources and services in most academic health sciences libraries. The University of Washington Health Sciences Libraries have been providing specialized services to this user community since 1995. The library recruited a Ph.D. biologist to assess the molecular biological information needs of researchers and design strategies to enhance library resources and services. A survey of laboratory research groups identified areas of greatest need and led to the development of a three-pronged program: consultation, education, and resource development. Outcomes of this program include bioinformatics consultation services, library-based and graduate level courses, networking of sequence analysis tools, and a biological research Web site. Bioinformatics clients are drawn from diverse departments and include clinical researchers in need of tools that are not readily available outside of basic sciences laboratories. Evaluation and usage statistics indicate that researchers, regardless of departmental affiliation or position, require support to access molecular biology and genetics resources. Centralizing such services in the library is a natural synergy of interests and enhances the provision of traditional library resources. Successful implementation of a library-based bioinformatics program requires both subject-specific and library and information technology expertise.  相似文献   

区域科技资源配置效率研究   总被引：25，自引：1，他引：25  

魏守华  吴贵生 《科学学研究》2005,23(4):467-473

本文在总结现有关于区域科技资源配置效率相关研究的基础上,提出了改进性方法,并重新计算和分析了区域科技资源配置效率,最后提出本文的结论以及区域科技效率分析中有待进一步探讨的问题。  相似文献   

The redemption of thalidomide: standardizing the risk of birth defects     

Timmermans S  Leiter V 《Social studies of science》2000,30(1):41-71

In this paper we examine how a standardized drug distribution system contributed to a therapeutic and symbolic make-over of thalidomide. In the 1960s, thalidomide was seen as a horror drug that caused severe birth defects among over 10,000 babies who were exposed to it in utero. Currently, thalidomide is viewed as a potentially life-saving drug which is being distributed in the USA. We discuss this transformation from a social worlds perspective, showing how the standardized drug distribution system normalized the risk of foetal birth defects, while preserving the autonomy of health care professionals. The distribution system accomplished this transformation by focusing on the risk associated with female reproductive behavior, and by providing close reproductive surveillance of female patients. This standardized system solidified social inequalities and professional power relationships, revealing assumptions about trust, responsibility and risk.  相似文献   

促进出口与经济发展——以韩国为例     

Jai S. MAH  高华  邵丹 《软科学》2007,21(6):34-38

分析了韩国促进出口措施的贡献和存在的问题,阐述了韩国从过去注重直接出口补贴向现在的间接出口激励措施转变,促进经济发展的经验。  相似文献   

基于复杂理论的知识创造机理研究   总被引：6，自引：0，他引：6  

王毅  吴贵生 《科学学研究》2005,23(1):101-105

本文把复杂理论与知识创造相结合,提出基于复杂理论的知识创造机理。文章运用这一机理分别对促进知识创造的正例和抑制知识创造的反例进行了分析。分析表明:在影子系统和合法系统的作用下,清华同方核技术公司占据了创造性空间,获得知识创造;而不适应性学习的存在、影子系统和合法系统对创新的规避,致使成都某电缆公司不能占据创造性空间,从而抑制知识创造。  相似文献