提高投掷运动员专项投掷能力的强力方法   总被引：14，自引：0，他引：14  

吕新颖  马侠 《北京体育大学学报》2002,25(6):841-842,854

通过文献综述和理论分析,对提高投掷运动员专项投掷能力的肌肉的强力训练法和肌肉训练以外的内源性强力法进行综述,并分析各种强力方法对提高投掷运动员专项投掷能力的作用效果,为广大投掷教练员和运动员的训练提供参考.  相似文献   

流媒体DRM技术在现代远程教育中的应用   总被引：1，自引：0，他引：1  

封俊莉  张文德 《情报学报》2008,27(1):133-140

Internet的飞速发展及广泛应用为各种信息资源的传输提供了一个可靠、高效的技术平台,开放式的现代远程教育在此基础上应运而生逐渐成为现代教育的重要组成部分.流媒体技术解决了人们通过网络下载、传输信息的带宽和时间的问题,通过采用高效的信息传送技术, 远程教育突破了传统课堂中时空的限制,实现了教学资源的共享.然而,多媒体课件是远程教育中最重要的数字作品,是其核心价值之所在,网络的开放特征势必造成多媒体课件任意破坏,版权人的合法权益将严重受损.本文试图通过流媒体DRM技术的利用来达到保护数字内容的版权目的.  相似文献   

中距离不同投篮点投篮命中率的差异分析   总被引：1，自引：0，他引：1  

隗金水  陀经地  陈育奇 《广州体育学院学报》1996,(3)

通过对两个不同水平的班级的投篮命中率的测试和检验。发现中距离不同投篮点的投篮命中率不存在显著性差异,投篮的“习惯位置”只是心理的产物,它并不意味着“非习惯位置”的投篮低命中率。但比赛中的“习惯位置”有待于进一步探讨。  相似文献   

Multilingual modeling of cross-lingual spelling variants     

Krister Lindén 《Information Retrieval》2006,9(3):295-310

Technical term translations are important for cross-lingual information retrieval. In many languages, new technical terms have a common origin rendered with different spelling of the underlying sounds, also known as cross-lingual spelling variants (CLSV). To find the best CLSV in a text database index, we contribute a formulation of the problem in a probabilistic framework, and implement this with an instance of the general edit distance using weighted finite-state transducers. Some training data is required when estimating the costs for the general edit distance. We demonstrate that after some basic training our new multilingual model is robust and requires little or no adaptation for covering additional languages, as the model takes advantage of language independent transliteration patterns. We train the model with medical terms in seven languages and test it with terms from varied domains in six languages. Two test languages are not in the training data. Against a large text database index, we achieve 64–78 % precision at the point of 100% recall. This is a relative improvement of 22% on the simple edit distance.  相似文献   

图书馆员从事研究活动的心态调适   总被引：2，自引：0，他引：2  

李红侠 《图书馆杂志》2004,23(3):63-65

“心理距离说”讨论从事图书工作研究应具有的心态：换一种眼光看图书工作研究，不要仅看到其过程的苦与难的一面，更要看到其对社会的教育意义等有积极意义的一面；换一种态度看图书工作研究，摆脱功利与实用主义，摆脱常人看问题的方法，摆脱所谓的“正常视象”；换一种注意力审视客体，采用特殊审美注意去探索客体的内部本质；与实用、功利保持适当距离，不即不离，处理好图书工作与科研、研究与收益、理论与实践、研究成果与读者服务等几种关系。  相似文献   

历史地理信息的获取与标准化——以上海交通大学馆藏地方历史文献为例     

汤萌  李芳  王昕 《图书馆杂志》2018,(1):50-57

上海交通大学图书馆针对近年来收集的地方历史文献开展了数字化加工工作。如何有效地提取文献蕴含的地理信息并使其标准化,最终实现数字化的展示、利用与分析是工作的难点之一。地理信息经由人工获取,根据研究需求按照分段揭示的原则著录到地域相关的元数据字段中。基于可统计的文献来源,分布集中的文献优先编写代码转换规则,可机读代码避免了语义识别等程序的繁冗。鉴于明清时期行政区划的特点,代码采用"省-县-都-图-村"五级格式,遵照标准化、兼容性、求同性与扩展性的编制原则,以期实现文献关联聚类、信息自动获取与空间可视化等数据化效果,还原地域视角下的历史原貌。  相似文献   

The Librarian BFF: A Case Study of a Cohort-Based Personal Librarian Program     

Erica England  Leo S. Lo  Arleene P. Breaux 《Journal of Library & Information Services in Distance Learning》2018,12(1-2):3-12

This case study presents the development and implementation of a personal librarian program for a cohort-based, executive-style higher education administration doctoral program. Librarians and the program director collaborated to create a student-centered program based on individual research needs. The personal librarian program was designed to build a close relationship between the librarian and individual students; to help identify their research knowledge gaps; and to identify resources to meet each individual students' research needs.  相似文献   

Two Thousand Students,One Librarian: Balancing Depth and Breadth of Library Instruction for Online Graduate Students     

Lindley Homol 《Journal of Library & Information Services in Distance Learning》2018,12(3-4):250-258

Many librarians struggle with how to balance scalable instructional offerings with more personalized instruction for online students—scale tends to come at the cost of personalization and vice versa. This paper will discuss three methods for connecting with online students that range from one-to-one personalization to widely scalable instruction: individual consultations, scaffolded instructional webinars, and asynchronous video tutorials. The student engagement with each type of instruction will be discussed, with ideas for future directions provided.  相似文献   

Libraries and Spatial Literacy: Toward Next-Generation Education     

Benjamin D. Branch 《College & Undergraduate Libraries》2014,21(1):109-114

The role of the library is to assist citizens in skills development critical to national interest and empowerment as literacy ambassadors, in general. Specifically, the work by the Federal Geographic Data Committee (1994) indicates that spatial literacy is for every citizen and not just a set of workforce specialists. Hence, the use of maps in decision making and problem solving will become fundamental to all professions, including library professionals. Thus, a spatial literacy awareness and rationale for such as standard job ability is discussed as a future librarian workforce proficiency and knowledge transfer medium.  相似文献   

Strength,Weakness, Opportunity,Threat (SWOT) Analysis of the Adaptations to Anatomical Education in the United Kingdom and Republic of Ireland in Response to the Covid-19 Pandemic     

Georga J. Longhurst  Danya M. Stone  Kate Dulohery  Deirdre Scully  Thomas Campbell  Claire F. Smith 《Anatomical sciences education》2020,13(3):301-311

The Covid-19 pandemic has driven the fastest changes to higher education across the globe, necessitated by social distancing measures preventing face-to-face teaching. This has led to an almost immediate switch to distance learning by higher education institutions. Anatomy faces some unique challenges. Intrinsically, anatomy is a three-dimensional subject that requires a sound understanding of the relationships between structures, often achieved by the study of human cadaveric material, models, and virtual resources. This study sought to identify the approaches taken in the United Kingdom and Republic of Ireland to deliver anatomical education through online means. Data were collected from 14 different universities in the United Kingdom and Republic of Ireland and compared adopting a thematic analysis approach. Once themes were generated, they were collectively brought together using a strength, weakness, opportunity, threat (SWOT) analysis. Key themes included the opportunity to develop new online resources and the chance to engage in new academic collaborations. Academics frequently mentioned the challenge that time constrains could place on the quality and effectiveness of these resources; especially as in many cases the aim of these resources was to compensate for a lack of exposure to cadaveric exposure. Comparisons of the actions taken by multiple higher education institutions reveal the ways that academics have tried to balance this demand. Discussions will facilitate decisions being made by higher education institutions regarding adapting the curriculum and assessment methods in anatomy.  相似文献