Editorial I     

C.Henry Kempe 《Child abuse & neglect》1982,6(2):109

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Maris: A knowledge system for internal medicine     

Vladimir Slamecka  Henry N. Camp  Albert N. Badre  W. Dallas Hall 《Information processing & management》1977,13(5):273-276

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Journal clustering using a bibliographic coupling method     

Henry G. Small  Michael E.D. Koenig 《Information processing & management》1977,13(5):277-288

The classification of journal titles into fields or specialties is a problem of practical importance in library and information science. An algorithm is described which accomplishes such a classification using the single-link clustering technique and a novel application of the method of bibliographic coupling. The novelty consists in the use of two-step bibliographic coupling linkages, rather than the usual one-step linkages. This modification of the similarity measure leads to a marked improvement in the performance of single-link clustering in the formation of field or specialty clusters of journals. Results of an experiment using this algorithm are reported which grouped 890 journals into 168 clusters. This scope is an improvement of nearly an order of magnitude over previous journal clustering experiments. The results are evaluated by comparison with an independently derived manual classification of the same journal set. The generally good agreement indicates that this method of journal clustering will have significant practical utility for journal classification.  相似文献   

Intellectual property protection mechanisms in research partnerships   总被引：1，自引：0，他引：1  

Henry R. Hertzfeld  Nicholas S. Vonortas 《Research Policy》2006,35(6):825-838

A set of US-based companies is investigated regarding the effectiveness of intellectual property protection mechanisms (IPPMs) in the formation of research partnerships. Patents are the most frequently used IPPM to protect both background and foreground knowledge in partnerships. Other IPPMs are used to protect know-how, especially in the early, forming stages of a partnership. Existing IP titles are quite useful when negotiating new partnerships. IPR negotiations are reported to be more complex in horizontal partnerships and when universities are involved.  相似文献   

高等教育中国家与市场的关系   总被引：6，自引：0，他引：6  

亨利·汉斯曼  黄丽 《北京大学教育评论》2005,3(3):32-40

欧洲大学现在失去了昔日的光彩,公共和私人教育支出水平较低是造成其衰败的部分原因;而高度集中的国家管理体制抑制了大学之间的有效竞争,从而使得大学在教育和研究两方面都缺乏进步的动力。对这一体制加以改革都会面临三个问题:政府对大学的掌控程度、政府对大学的资助程度和大学之间的竞争程度。这三个问题既是相互关联的,在一定程度上又是彼此独立的;既可能存在有公共资助但没有公共产权的情况,也可能存在有公共资助和公共产权同时还保持了高度竞争的情况。高等教育不同于其他产品和服务,具有“连带性”特征,这使得大学竞争与效率和公平问题之间存在着紧密而复杂的关系。  相似文献   

The battered-child syndrome     

C.Henry Kempe  Frederic N. Silverman  Brandt F. Steele  William Droegemueller  Henry K. Silver 《Child abuse & neglect》1985,9(2):143-154

The battered-child syndrome, a clinical condition in young children who have received serious physical abuse, is a frequent cause of permanent injury or death. The syndrome should be considered in any child exhibiting evidence of fracture of any bone, subdural hematoma, failure to thrive, soft tissue swellings or skin bruising, in any child who dies suddenly, or where the degree and type of injury is at variance with the history given regarding the occurrence of the trauma. Psychiatric factors are probably of prime importance in the pathogenesis of the disorder, but knowledge of these factors is limited. Physicians have a duty and responsibility to the child to require a full evaluation of the problem and to guarantee that no expected repetition of trauma will be permitted to occur.  相似文献   

Learning objectives for science practicals at traditional and distance universities     

Paul Kirschner  Marthie Meester  Evert Middelbeek  Henry Hermans 《Distance Education》1993,14(2):260-282

This study is designed to determine whether, and to what extent, the perceived importance of objectives of undergraduate practicals in the Natural Sciences is dependent upon the type of institute at which practicals are given. The two dimensions used in this research to discriminate between types of institutes are type of education offered (face‐to‐face versus correspondence) and type of programme offered (monodisciplinary versus interdisciplinary). For this reason, distance universities throughout the world (DUs) and more traditional, residential universities (RUs) in The Netherlands were compared. Special attention has been paid to the Open university of The Netherlands (OuN). The results show that RUs and DUs approach practicals in a very similar manner with both of them differing in a number of respects with the OuN. Implications of this research for the use of practicals in a curriculum in the Natural Sciences are presented.  相似文献   

Judicious imitation: children differentially imitate deterministically and probabilistically effective actions     

Schulz LE  Hooppell C  Jenkins AC 《Child development》2008,79(2):395-410

Three studies look at whether the assumption of causal determinism (the assumption that all else being equal, causes generate effects deterministically) affects children's imitation of modeled actions. These studies show even when the frequency of an effect is matched, both preschoolers (N = 60; M = 56 months) and toddlers (N = 48; M = 18 months) imitate actions more faithfully when modeled actions are deterministically rather than probabilistically effective. A third study suggests that preschoolers' (N = 32; M = 58 months) imitation is affected not just by whether the agent's goal is satisfied but also by whether the action is a reliable means to the goal. Children's tendency to generate variable responses to probabilistically effective modeled actions could support causal learning.  相似文献   

School desegregation and black political involvement     

Jomills Henry Braddock II 《The Urban Review》1981,13(1):13-23

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The effects of an explicit problem-solving approach on mathematical chemistry achievement     

Diane M. Bunce  Henry Heikkinen 《科学教学研究杂志》1986,23(1):11-20

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