Accurate assessment of the brake torque on a rope-braked cycle ergometer     

Gordon  R. S.  Franklin  K. L.  Baker  J.  Davies  B. 《Sports Engineering》2004,7(3):131-138

Sports Engineering - A Monark cycle ergometer is a device globally used in physiological studies to measure the work and energy levels of exercising humans. In this paper a rope-braked cycle...  相似文献   

谈高等代数理论的三条主线     

侯维民  董春霞 《天水师范学院学报》2004,24(5):8-10

提出贯穿高等代数理论的三条主线。它们是:从具体的数学对象向抽象的代数系统的转变;从各类数学对象的传统表示向统一的矩阵表示的转变;从数学对象间的具体关系向集合元素间的抽象关系的转变。  相似文献   

The impact of case characteristics on child abuse reporting decisions.     

G L Zellman 《Child abuse & neglect》1992,16(1):57-74

Drawing distinctions on the basis of at least some case characteristics in making reporting decisions makes considerable sense. Using data from a national survey of mandated reporters that included vignettes in which case and personal characteristics were systematically varied, this paper examines the impact of selected characteristics while controlling for others. The data reveal that respondents noticed and responded to case characteristics. Abuse-relevant judgments and reporting intentions varied, often substantially, as a function of case characteristics. Three case characteristics--previous abuse, severity of abuse, and recantation--were powerful predictors of vignette outcomes. A history of previous abuse led to judgments of greater seriousness, a more salutary impact of a report, and greater likelihood of reporting. More severe abuse was more likely to be labelled as abuse, and was more likely to be reported. When the alleged victim retracted her accusation upon questioning by an authority figure, respondents were significantly less likely to intend a report. Child age, perpetrator intent and family socioeconomic status also influenced abuse-relevant judgments and reporting intentions. Respondents were more likely to intend a report when younger children, lazy or angry perpetrators and children from poorer families were portrayed.  相似文献   

Probabilistic Causality,     

L. JONATHAN COHEN 《Philosophical Books》1992,33(2):86-88

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REAL: Ein ressourcenadaptierendes mobiles Navigationssystem     

Wolfgang Wahlster  J?rg Baus  Christian Kray und Antonio Krüger 《Informatik - Forschung und Entwicklung》2001,16(4):233-241

Zusammenfassung.   Die intelligente Ressourcenadaption ist eine der gro?en Herausforderungen für die n?chste Generation mobiler Navigationssysteme. Da man typischerweise mehrere Fortbewegungsarten oder Verkehrsmittel kombinieren muss, um an einen Zielort zu gelangen, muss sichergestellt werden, dass mobile, allgegenw?rtige Navigationshilfen dies über eine jeweils situationsangepasste Benutzerschnittstelle unterstützen. Der notwendige Wechsel zwischen verschiedenen Positionierungstechnologien soll für den Endbenutzer m?glichst unbemerkt bleiben. Im folgenden wird ein hybrides Personennavigationssystem vorgestellt, das die in bestimmten Fortbewegungssituationen verfügbaren Positionierungstechnologien und deren Genauigkeit optimal nutzt, um die Pr?sentation der Wegbeschreibung auf verschiedene Endger?te und Ausgabemodalit?ten sowie die kognitive Ressourcenlage des Benutzers zu adaptieren. Eingegangen am 28. Februar 2001 / Angenommen am 8. August 2001  相似文献   

Assessing the Utility of Item Response Models: Computerized Adaptive Testing     

G. Gage Kingsbury  Ronald L. Houser 《Educational Measurement》1993,12(1):21-27

How has Item Response Theory helped solve problems in the development and use of computer-adaptive tests? Do we need to balance item content with computer-adaptive tests? Could we use IRT to evaluate unusual responses to computer-delivered tests?  相似文献   

Borderless Higher Education in Continental Europe     

Davies  John L. 《Minerva》2001,39(1):27-48

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Henry Holt a-spinning in his grave: Literary agenting yesterday and today     

Thomas L. Bonn 《Publishing Research Quarterly》1994,10(1):55-65

The role of the literary agent and the reception granted agents by publishers have changed markedly over the course of the twentieth century. Henry Holt’s views of agents, written in the first decade of the century, help define the status and activities of agents at that time. These are compared with the role of agents today, using archival sources, the book trade literature, and interviews. Thomas L. Bonn, review editor of this journal, is a librarian, Library at State University College at Cortland. He is the author ofUnder Cover: An Illustrated History of American Mass Market Paperbacks andHeavy Traffic and High Culture: The New American Library as Literary Gatekeeper. He is working on a study of American literary agents.  相似文献   

西方发达国家社区体育对我国高校体育社会化进程启示之研究   总被引：17，自引：0，他引：17  

李海  董永顼  闫华 《西安体育学院学报》2002,19(4):8-10

在西方发达国家中 ,社区体育与学校体育有着密切地联系 ,它们已将学校体育有效地纳入到了社会体系。运用文献资料法、比较分析法和调查法分析研究了欧美国家和日本的社区体育 ,找出我国高校体育与社会体育的契合点 ,为进一步深化高校体育改革 ,促进高校体育社会化进程提供借鉴。  相似文献   

课堂环境研究的现状、意义及趋势   总被引：11，自引：0，他引：11  

范春林  董奇 《比较教育研究》2005,26(8):61-66

文章在对国内外相关文献进行系统分析的基础上,对课堂环境的含义及其与相关概念的关系进行了辨析;回顾了国外课堂环境研究的状况;论述了课堂环境研究的现实意义;指出了现有研究的不足和未来研究的方向.  相似文献