论“留守学生”的心理特征及教育     

陈文 《中国教育研究与创新》2006,3(2):89-89

文章具体分析了“留守学生”中普遍存在的自理能力差、依赖性强、厌学情绪严重、相互攀比、消极模仿等异常心理行为。同时，提供了以“培训家长”、“建立优良班风”、“搞好个别教育”等有效的教育方法。  相似文献   

Some problems in the administration of a medical library     

Ballard JF 《Bulletin of the Medical Library Association》1989,77(4):331

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Austere librarians-volte-face!     

Ingelfinger FJ 《Bulletin of the Medical Library Association》1992,80(2):123

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Exporting the American (information) revolution: the international impact of the National Library of Medicine     

E V Smith  F S Janson 《Bulletin of the Medical Library Association》1986,74(4):339-343

The National Library of Medicine has had an enormous impact on health information services all over the world. Although NLM is primarily a national institution, it has become an important international resource by responding to requests from the international community. NLM has been influential in three major ways. First, NLM has provided a model for other national and regional health information services. Second, it has been a catalyst, in that MEDLARS and other services it provides formed the nucleus of many regional networks. NLM helped such networks get started by giving advice on how to set up services and build collections and by "training the trainers" on the MEDLARS system. Third, NLM has supported national and regional operations by providing the additional training and materials needed for day-to-day service.  相似文献   

The literary styles of Sir William Osler     

Wallis F 《Osler Library newsletter》1986,(51):1-3

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厚数据研究综述     

李成熙  文庭孝 《高校图书馆工作》2022,42(1):8-14,28

文章通过回顾厚数据研究的理论起源和发展,利用WOS和CNKI检索相关文献,梳理国内外厚数据研究现状,剖析和解读研究中的前沿热点和问题,为后续研究提供支持和建议。当前国内外厚数据相关研究主要集中在厚数据定义研究、厚数据应用场景研究和厚数据分析方法研究等方面,未来应继续围绕基础研究问题进行深入探索和改进,并尝试在厚数据融合研究、厚数据方法研究和厚数据应用研究等方面不断进行拓展。  相似文献   

基于图像分割和EM算法的PolSAR地物分类方法     

曹哲  冯珊珊  孙显  洪文 《中国科学院大学学报》2022,39(5):639-647

在极化合成孔径雷达（PolSAR）地物分类研究中,基于卷积神经网络的图像分割算法存在高维特征信息冗余而导致的分类边界模糊、分类精度低、计算复杂等不足,提出一种基于卷积神经网络和EM算法的轻量化图像分割网络,称为低秩重构网络（low-rank-reconstruction-net,LRR-Net）,应用于全极化SAR图像的地物分类。LRR-Net从极化目标分解的思想出发,利用EM算法对特征进行低秩重构,将特征从高维空间映射到低维空间,在减少参数的同时实现更精确的分类。用高分三号全极化图像数据对模型进行训练测试并评估,结果表明模型在保证分类精度的前提下,降低了模型复杂度。  相似文献   

The Index Medicus: why it works and when it doesn't     

M F Jackson 《Bulletin of the Medical Library Association》1966,54(4):325-328

A user study of the Index Medicus done at the Walter Reed Army Medical Center included responses from a group of sixty researchers, clinicians, residents, and interns. An analysis of the questionnaire shows that, while all respondents use the Index Medicus, most use it to search for a specific subject or a specific author reference. Comments received were critical of the delay from the time of journal publication until the appearance of its citation in Index Medicus. Suggestions were offered concerning the type of publication most of the respondents would prefer.  相似文献   

The hospital library committee: its composition and tasks     

F Schiller  G H Merritt 《Bulletin of the Medical Library Association》1967,55(3):321-323

Since a sizeable hospital must have a library, it must have a library committee. Like all hospital committees, this one is to help maintain standards of medical care and to mediate between staff and administration. Unlike others, it clusters around one elected member (the chairman) and one employee (the librarian). A dynamic librarian can, and should, influence and inspire the committee's deliberations; and must be able to depend upon the support of the physician members of the committee.  相似文献   

Analysis of recorded biomedical book and journal use in the Yale Medical Library. II. Subject and user relations     

P Stangl  F G Kilgour 《Bulletin of the Medical Library Association》1967,55(3):301-315

Cancelled charge slips collected over a one-year period supply the data for this analysis of circulation in the Yale Medical Library. Full-time teaching faculty are the heaviest users of journal literature, and students, of monograph literature. Faculties of Medical School departments are compared in terms of their use of material in individual subjects. Subject literatures are analyzed in terms of groups of users borrowing from them. The extent to which journal titles used by medical students are also used by Medical School faculty is examined. One of the products of the study is a rank list of journal titles used in the Library. Results are presented in several tables.  相似文献