开放存取论文下载与引用情况计量研究   总被引：2，自引：0，他引：2  

牛昱昕  宗乾进  袁勤俭 《中国图书馆学报》2012,38(4):119-127

基于"中国科技论文在线"的论文引用、下载数据,对开放存取论文被引用的年代分布情况、被引频次与下载频次的相关关系进行研究。结果表明:①开放存取论文达到被引峰值的时间在延长,互联网并没有加快开放存取论文的老化,反而有延缓之势;②单篇论文的下载频次与被引频次之间的相关性不显著;③应用性、综述性论文更容易出现"高下载低引用"现象;④从长期、整体角度来看,开放存取论文的下载频次与被引频次之间呈现正相关趋势;⑤被引频次侧重于反映开放存取论文的内在质量,下载频次则反映外部评价指标(可识别性、可获得性、传播速率等)。图3。表2。参考文献39。  相似文献   

基于引文内容分析的高被引论文主题识别研究     

祝清松  冷伏海 《中国图书馆学报》2014,40(1):39-49

基于被引次数的引文分析无法直接揭示论文的研究内容,利用关键词或从标题、摘要和全文中抽取的主题词很难客观反映论文的被引原因。本文以碳纳米管纤维研究领域的高被引论文为研究对象进行引文内容抽取和主题识别,经人工判读验证：基于引文内容分析的高被引论文识别的核心主题能够较好地揭示高被引论文的被引原因（引用动机）,而且与论文的研究内容相符合;与基于全文、基于标题和摘要的主题识别相比,在引文内容分析基础上识别的主题具有更好的主题代表性,能够有效揭示被引文献的研究内容,是对原文相关信息的重要补充。本文的实验表明基于引文内容分析的高被引论文主题识别是可行而且有效的。图4。表4。参考文献31。  相似文献   

First Impressions and the Reference Encounter: The Influence of Affect and Clothing on Librarian Approachability   总被引：1，自引：0，他引：1  

Jennifer L. Bonnet  Benjamin McAlexander 《The Journal of Academic Librarianship》2013

Whether or not a librarian appears approachable in public service environments is critical to providing excellent service, conveying a welcoming space, and encouraging library users to engage with one of the key intellectual venues on our campuses. This study used an image-rating method to assess the influence of affect and attire on patron impressions of librarian approachability. Findings suggest that librarian behaviors do matter, with specific treatments resulting in increased or decreased perceptions of approachability. These findings not only support common sense assessments that an attentive and welcoming environment is essential to encouraging patrons to engage with librarians; they also provide information on specific behaviors that affect approachability, allowing librarians to distinguish between a range of presentation styles that can be readily employed in public service.  相似文献   

Saving Brittle Books     

《资料收集管理》2013,38(4):53-64

Sources of information concerning paper deterioration and approaches to researching the preservation literature are offered as an aid to administrative decision-making. A suggested list of readings keyed to a study outline allows an overview of the issues and factors involved in the current brittle books problem. Though designed to give a broad background of basic information, the annotated bibliography can also be used to develop a shelf of reference materials for preservation managers.  相似文献   

The Williams Center for Environmental Studies     

Andrew J. W. Scheffey 《The Journal of environmental education》2013,44(2):39-40

Abstract

Triumph of the Mundane: The Unseen Trends That Shape Our Lives and Environment, by Hal Kane. Washington, DC: Island Press. 2001. Hardback. 195 pages. $22.95. ISBN 1-55963-715-3.

Voices for the Watershed: Environmental Issues in the Great Lakes-St. Lawrence River Drainage Basin, edited by Gregory Gilpin Beck and Bruce Littlejohn. Montreal: McGill-McQueen's University Press. 2000. Clothbound. 300 pages. $32.95 US. ISBN 0-7735-2003-1.

A Forest Journey: The Role of Wood in the Development of Civilization, by John Perlin. 1989, reprinted 1997. Cambridge, MA: Harvard University Press. 445 pages. Paperback. $26.50. ISBN 0-674-30892-1.

Cultural Landscapes and Environmental Change, by Lesley Head. New York: Oxford University Press. 2000. Paperback. 179 pages. $24.95. ISBN 0-340-73114-1.

ePopulation Reports. Population and the Environment: The Global Challenge, produced by the Population Information Program at the Center for Communications Programs, The Johns Hopkins University School of Public Health, Baltimore, MD.

Earth in Mind: On Education, Environment, and the Human Prospect, by David W. Orr. Washington, DC: Island Press. 1994. Paperback. 222 pages. $18.95. ISBN 1-55963-295-X.  相似文献   

Efficacy of the Incredible Years group parent program with families in Head Start who self-reported a history of child maltreatment     

Michael S. Hurlburt  Katherine Nguyen  Jamila Reid  Carolyn Webster-Stratton  Jinjin Zhang 《Child abuse & neglect》2013

Objective

A prevention form of the Incredible Years (IY) parenting program was offered to parents who had children enrolled in Head Start, regardless of whether they reported having a history of child maltreatment. This study compared whether parenting practices and child behavioral outcomes differed in families who self reported a history of child maltreatment relative to families who did not.

Methods

A site-randomized controlled trial of the IY parenting program was conducted in 64 classrooms in seven Head Start centers in Seattle, Washington. Families of 481 children took part in the study, with 335 in the IY condition and 146 in the control condition. Parenting practices and child behavior were measured by blinded raters through in-home observations and self-report questionnaires prior to the start of the IY program, in the spring after the IY program had concluded, and 12–18 months after study enrollment when children were in kindergarten. Analyses examine the impact of the IY program on parenting practices and children's behavior, exploring whether the program had differential impacts for parents with and without a self-reported history of child maltreatment.

Results

The IY program resulted in improvements along many parenting dimensions and on characteristics of observed child behavior. Program impacts were similar for parents who did and did not report a history of child maltreatment. However, parents with a reported history of prior maltreatment had greater initial room for improvement in areas such as harsh/critical parenting, nurturing/supportive parenting, and discipline competence than parents without such a history.

Conclusions

The IY parenting program has positive impacts for parents who self-reported a history of child maltreatment. While similar benefits were observed for both groups of parents in this study, results support delivering evidence-based parenting programs of longer duration and higher intensity than often used by agencies serving parents in contact with child welfare.

Practice

Agencies serving parents referred for child maltreatment should carefully examine the characteristics of the parenting programs they deliver. Use of a parenting program that has a sound base of empirical support, such as IY, and sufficient intensity and duration, is likely to make substantial changes in parents’ child-rearing practices.  相似文献   

Preliminary development of a measure of sibling relational maintenance behaviors: Scale development and initial findings   总被引：1，自引：1，他引：0  

Scott A. Myers  Keith D. Weber 《Communication quarterly》2013,61(4):334-346

Two studies were conducted to examine the use of relational maintenance behaviors in the sibling relationship. In the first study, the specific relational maintenance behaviors used by siblings were identified. A principal components factor analysis of 70 previously generated behaviors used by 363 participants revealed six factors: confirmation, humor, social support, family visits, escape, and verbal aggression. In the second study, the link between the six relational maintenance behaviors used by siblings and the relational outcomes of liking, commitment, and trust was explored. Results indicate the confirmation, humor, social support, and family visits relational maintenance behaviors are correlated positively with liking, commitment, and trust, but the verbal aggression relational maintenance behavior failed to correlate with liking, commitment, or trust.  相似文献   

Consulting Behaviors and the Role of Computer Consultants in Student Learning and Anxiety     

《Journal of Teaching in Social Work》2013,33(1-2):173-190

Abstract

As computer applications are added to social work, educators are increasingly likely to encounter computer anxiety. This form of anxiety has been well-documented in the literature, including warnings that students attracted to fields that are “people professions” such as social work may be especially prone to problems.

This qualitative study used a naturalistic approach to observe and describe the behaviors and activities of computer consultants that seemed to have an effect on student anxiety. Analysis of the results indicated that some behaviors of consultants may actually have increased student feelings of anxiety and uncertainty, while others appeared to be quite helpful.  相似文献   

Longitudinal associations among interest,persistence, supportive parenting,and achievement in early childhood     

Anne Martin  Rebecca M. Ryan  Jeanne Brooks-Gunn 《Early childhood research quarterly》2013

This study investigates two facets of children's school readiness: interest in new cognitive tasks (interest) and persistence in task completion (persistence). Little attention has been paid to the early development of these learning behaviors, although they might prove susceptible to intervention even before school entry. Using data from the Early Head Start Research and Evaluation Project, a sample of low-income children (N = 1771) was followed to model bidirectional associations among interest and persistence and maternal supportive parenting between ages 1 and 3, and estimate associations between children's interest and persistence at age 3 and their academic skills at age 5. Results indicate that maternal supportive parenting influences children's interest and persistence more strongly and consistently than interest or persistence influences parenting, and that interest but not persistence transacts with parenting over time. Interest and persistence were equally predictive of children's early academic skills. Findings affirm that both interest and persistence during toddlerhood predict children's academic standing at school entry.  相似文献   

17种口腔医学核心期刊高被引论文的特征分析     

杨红芸  孙波  王晴 《中华医学图书馆杂志》2013,(12):75-78

对《中国核心期刊引证报告》（2012年版）公布的17种口腔医学核心期刊创刊以来刊登的被引次数≥40的论文（共计305篇）的期刊分布、论文合作情况、作者分布、机构分布、基金资助及学科分布等进行了分析,为科技期刊编辑部的选题策划、审稿组稿提供参考。  相似文献