Sport und Behinderung     

Manfred Wegner  Gerhard Kaminski 《Sportwissenschaft》2004,34(4):508-509

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The quality of student dialogue in citizenship education     

Jaap Schuitema  Carla van Boxtel  Wiel Veugelers  Geert ten Dam 《European Journal of Psychology of Education - EJPE》2011,26(1):85-107

This study investigates the relationship between the quality of student dialogue and students’ ability to justify their viewpoints on a moral issue. A curriculum unit for dialogic citizenship education was developed and implemented in the 8th grade of secondary education. In the final lesson, students discussed a moral issue and then wrote an essay on it. The results show that students who made more value-related utterances during the discussion also referred more often and more explicitly in their individually written essays to moral values. This study indicates that the quality of the content of students’ dialogue is important for their ability to substantiate their opinion on moral issues with value-laden argumentation. Approaches to citizenship education in which dialogue is a central element should, therefore, pay specific attention to the validation of ideas in student dialogue.  相似文献   

Anatomical Sciences Education Vol. 4, Issue 3, 2011 Cover Image     

Veronica Macchi  Andrea Porzionato  Carla Stecco  Cesare Tiengo  Anna Parenti  Adriano Cestrone  Raffaele De Caro 《Anatomical sciences education》2011,4(3)

Medical Gross Anatomy lecture at the University of Padova, Italy. Gross Anatomy at the University of Padova is taught utilizing both traditional and technological resources, which are integrated with practical laboratory exercises (mainly on plastic models and plastinated specimens) as well as radiological anatomy. In this issue of ASE, Dr. Veronica Macchi and her colleagues from the Department of Human Anatomy and Physiology at the University of Padova discuss an innovative pilot project with their University Hospital in which they obtain body parts removed from patients during surgical procedures and utilize them for gross anatomy education. The cover photograph shows one of the co‐authors of this paper, Professor Raffaele De Caro and his students, performing dissection of the distal forearm and hand in the anatomy lecture theater at the University of Padova.  相似文献   

The impact of different types of physical activity on total and regional bone mineral density in young Brazilian athletes     

Silva CC  Goldberg TB  Teixeira AS  Dalmas JC 《Journal of sports sciences》2011,29(3):227-234

Bone turnover is affected by exercise throughout the lifespan, especially during childhood and adolescence. The objective of this study was to investigate the impact of different sports on total and regional bone mineral density in male Brazilian adolescent athletes. Forty-six adolescents aged 10-18 years participated in the study: 12 swimmers, 10 tennis players, 10 soccer players, and 14 sedentary individuals. The athletes had engaged in physical activities for more than 10 h per week in the previous 6 months. Bone mineral density of the lumbar spine (L1-L4), left proximal femur region, and whole body was evaluated by dual-energy X-ray absorptiometry. Results showed higher mean values in the proximal femur region of tennis and soccer players (1.02 ± 0.18; 0.96 ± 0.16, respectively) than swimmers and controls (0.91 ± 0.14 and 0.87 ± 0.06, respectively) (P < 0.05). In relation to the impact of sporting activities based on bone age determination, we observed significant differences in bone mineral density at all evaluated sites at the end of puberty (16-18 years) compared with 10-12 years, with increases of 78% in the lumbar spine, 47% in the proximal femur, and 38% in the whole body.  相似文献   

The Role of Child Interests and Collaborative Parent–Child Interactions in Fostering Numeracy and Literacy Development in Canadian Homes     

Ivanna K. Lukie  Sheri-Lynn Skwarchuk  Jo-Anne LeFevre  Carla Sowinski 《Early Childhood Education Journal》2014,42(4):251-259

Children’s involvement in home literacy and numeracy activities has been linked to school achievement, but the subtleties in the home environment responsible for these gains have yet to be thoroughly investigated. The purpose of this study was to determine how children’s interests and collaborative parent–child interactions affect exposure to home literacy and numeracy activities. Parents of 170 four-to-five year old children completed a survey about their child’s home learning environment. They rated their children’s interests in 14 activities, and the extent of parent–child collaboration on a cooking and card-making task. Follow up interviews were also initiated with four mothers to provide validation of the survey data in numeracy. Factor analyses reduced the number of survey items. Parents whose children preferred exploratory, active or crafts activities reported frequent engagement in literacy and numeracy activities. Parents seeking a collaborative approach during activities reported increased exposure to home literacy and numeracy activities than families with less collaborative involvement. Interview data confirmed that parents of children with high numeracy scores were exposing their children to rich numeracy activities during play. The findings suggest that children’s interests and collaborative parent–child involvement impact literacy and numeracy exposure in the home.  相似文献   

Directed forgetting among third and seventh graders     

Carla J Posnansky 《Contemporary educational psychology》1976,1(3):247-256

The present studies examined the effectiveness of explicit and implicit Forget cues for enhancing memory of to-be-remembered items within a directed forgetting paradigm. Such a paradigm may be viewed as a laboratory analogue to a classroom testing situation where students read through an examination before beginning in order to cue themselves as to which information is important to remember. Subjects were third- and seventh-grade children. Evidence was provided that directed forgetting processes were operative at the time of recall so that memory enhancement did not merely reflect differential rehearsal of the to-be-remembered items during study. When easy partitioning of items into Remember and Forget sets was possible, subjects as young as third graders could benefit from postpresentation Forget cues. The data suggest that postpresentation Forget cues permit a selective search during recall and a consequent reduction in interference from to-be-forgotten items. Applications of these findings to a classroom testing situation were discussed.  相似文献   

Sportunterricht und Schulsport     

Dieter Brodtmann  Gerhard Hecker  D. Kurz 《Sportwissenschaft》1980,10(2):194-200

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Bewegung — von außen und von innen gesehen     

Gerhard Kaminski 《Sportwissenschaft》1972,2(1):51-63

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Bewegungshandlungen als Bewältigung von Mehrfachaufgaben     

Gerhard Kaminski 《Sportwissenschaft》1973,3(3):233-250

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Das MINERVA-Projekt: Datenbankselektion für Peer-to-Peer-Websuche     

Matthias Bender  Sebastian Michel  Gerhard Weikum und Christian Zimmer 《Informatik - Forschung und Entwicklung》2005,20(3):152-166

Zusammenfassung In diesem Artikel wird MINERVA pr?sentiert, eine prototypische Implementierung einer verteilten Suchmaschine basierend auf einer Peer-to-Peer (P2P)-Architektur. MINERVA setzt auf die in der P2P-Welt verbreitete Technik verteilter Hash-Tabellen auf und benutzt diese zum Aufbau eines verteilten Verzeichnisses. Peers in unserem Ansatz entsprechen v?llig autonomen Benutzern mit ihren lokalen Suchm"oglichkeiten, die bereit sind, ihr lokales Wissen und ihre lokalen Suchm?glichkeiten im Rahmen einer Kollaboration zur Verfügung zu stellen. Wir formalisieren unsere Systemarchitektur und beschreiben das zentrale Problem einer effizienten Suche nach vielversprechenden Peers für eine konkrete Anfrage innerhalb des Verbundes. Wir greifen dabei auf existierende Methoden zurück and passen diese an unseren Systemkontext an. Wir pr?sentieren Experimente auf realen Daten, die verschiedene dieser Ans?tze vergleichen. Diese Experimente zeigen, dass die Qualit?t der Ans?tze variiert und untermauern damit die Wichtigkeit und den Einfluss einer leistungsstarken Methode zur Auswahl guter Datenbanken. Unsere Experimente deuten an, dass eine geringe Anzahl sorgf?ltig ausgew?hlter Datenbanken typischerweise bereits einen Gro?teil aller relevanten Ergebnisse des Gesamtsystems liefert.

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This paper presents the MINERVA project that protoypes a distributed search engine based on P2P techniques. MINERVA is layered on top of a Chord-style overlay network and uses a powerful crawling, indexing, and search engine on every autonomous peer. We formalize our system model and identify the problem of efficiently selecting promising peers for a query as a pivotal issue. We revisit existing approaches to the database selection problem and adapt them to our system environment. Measurements are performed to compare different selection strategies using real-world data. The experiments show significant performance differences between the strategies and prove the importance of a judicious peer selection strategy. The experiments also present first evidence that a small number of carefully selected peers already provide the vast majority of all relevant results.

CR Subject Classification H.4,H.3.3,H3.4  相似文献