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   

论托管型社区图书馆的办馆模式   总被引：7，自引：0，他引：7  

陈峰 《图书馆杂志》2006,25(2):34-35,40

托管型社区图书馆是新型的社区图书馆办馆模式，具有“委托管理、分馆运作”的体制特点。其建设的现实意义在于建立良好的管理机制，解决社区自行办馆中难以解决的问题；改变“小而全”的办馆模式，为建立地区性公共文献资源共建共享体系奠定基础。  相似文献   

关于中小型公共图书馆生存与发展的思考     

胡尚明 《图书馆论坛》2006,26(4):16-18

文章分析了中小型公共图书馆面临的生存状况，提出了生存与发展的应对措施，尤其是应走联合、共享的发展之路。  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   

中小型图书馆建设数字图书馆的对策   总被引：9，自引：0，他引：9  

李金波 《图书馆论坛》2004,24(5):104-106

指出目前中小型图书馆建设数字图书馆所面临的问题，从网络系统、自动化集成管理系统、数字资源、馆员队伍4个方面论述了中小型图书馆建设数字图书馆的对策。  相似文献   

中小型图书馆人力资源管理创新   总被引：3，自引：0，他引：3  

周学南 《图书馆学研究》2004,(3):30-31,5

本文针对中小型图书馆人力资源管理这一主题，论述了传统人事管理的现状、滞后的原因以及人力资源管理的内涵和对策。  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   

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   

Development of a chemically defined medium for Planctopirus limnophila to increase biomass production     

《Electronic Journal of Biotechnology》2021

BackgroundPlanctomycetes is a phylum of biofilm-forming bacteria with numerous biosynthetic gene clusters, offering a promising source of new bioactive secondary metabolites. However, the current generation of chemically defined media achieves only low biomass yields, hindering research on these species. We therefore developed a chemically defined medium for the model organism Planctopirus limnophila to increase biomass production.ResultsWe found that P. limnophila grows best with a 10 mM sodium phosphate buffer. The replacement of complex nitrogen sources with defined amino acid solutions did not inhibit growth. Screening for vitamin requirements revealed that only cyanocobalamin (B12) is needed for growth. We used response surface methodology to optimize the medium, resulting in concentrations of 10 g/L glucose, 34 mL/L Hutner’s basal salts, 23.18 mM KNO₃, 2.318 mM NH₄Cl and 0.02 mg/L cyanocobalamin. The analysis of amino acid consumption allowed us to develop a customized amino acid solution lacking six of the amino acids present in Aminoplasmal 10%. Fed-batch cultivation in a bioreactor using the optimized medium achieved a final ΔOD₆₀₀ of 46.8 ± 0.5 after 108 h, corresponding to a cell dry weight of 13.6 ± 0.7 g/L.ConclusionsThe optimized chemically defined medium allowed us to produce larger amounts of biomass more quickly than reported in earlier studies. Further research should focus on triggering P. limnophila biofilm formation to activate the gene clusters responsible for secondary metabolism.How to cite: Kruppa OC, Gerlach D, Fan R, et al. Development of a chemically defined medium for Planctopirus limnophila to increase biomass production. Electron J Biotechnol 2021;54. https://doi.org/10.1016/j.ejbt.2021.09.002.  相似文献