Situation-orientated recognition of tactical patterns in volleyball     

Jäger JM  Schöllhorn WI 《Journal of sports sciences》2007,25(12):1345-1353

One important factor for effective operations in team sports is the team tactical behaviour. Many suggestions about appropriate players' positions in different attack or defence situations have been made. The aims of this study were to develop a classification of offensive and defensive behaviours and to identify team-specific tactical patterns in international women's volleyball. Both the classification and identification of tactical patterns is done by means of a hierarchical cluster analysis. Clusters are formed on the basis of similarities in the players' positions on the court. Time continuous data of the movements, including the start and end points during a pass from the setter, are analysed. Results show team-specific patterns of defensive moves with assessment rates of up to 80%. Furthermore, the recognition of match situations illustrates a clear classification of attack and defence situations and even within different defence conditions (approximately 100%). Thus, this approach to team tactical analysis yields classifications of selected offensive and defensive strategies as well as an identification of tactical patterns of different national teams in standardized situations. The results lead us to question training concepts that assume a team-independent optimal strategy with respect to the players' positions in team sports.  相似文献   

The History of Tuberculous Meningitis     

Ruhräh J 《Medical Library and Historical Journal》1904,2(3):160-165

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Phonological Working Memory of Children in Two German Special Schools     

Marcus Hasselhorn  Claudia Mähler 《International Journal of Disability, Development & Education》2007,54(2):225-244

In two studies, 10‐year‐olds from 2 German special schools as well as typically developing children of the same chronological age (CA controls) or the same mental age (MA controls) were compared on several aspects of working memory functions (i.e., size and input quality of the phonological store, speed and automatic activation of the subvocal rehearsal process). Results reveal that the children from the special schools reached the MA control but not the CA control children's level of non‐word repetition and also showed a statistically significant phonological similarity effect on memory span. These results were interpreted as evidence for a developmental lag in the functioning of the phonological store in these children. With regard to the subvocal rehearsal process, the results were mixed. While the children in the special schools outperformed the MA controls in speech rate, it was found that, in contrast to both control groups, they did not show any word‐length effect on memory span. This finding might be interpreted as evidence for a structural deficit impeding the automatic activation of the subvocal rehearsal process.  相似文献   

Determination of the prevalence of anabolic steroids, stimulants, and selected drugs subject to doping controls among elite sport students using analytical chemistry     

Thevis M  Sauer M  Geyer H  Sigmund G  Mareck U  Schänzer W 《Journal of sports sciences》2008,26(10):1059-1065

Drug abuse by adolescents has been investigated in various surveys that reported correlations between age, gender, and activity. However, none of these studies included chemical analyses to help substantiate the statements of participants. In the present study, the urine specimens of 964 students (439 females, 525 males; mean age 22.1 years, s = 1.7), who applied to study sports sciences at university, were assessed for anabolic steroids, stimulants, and selected drugs prohibited in sports. In total, 11.2% of the urine specimens provided contained drugs covered by doping controls. The most frequently detected compound was the major metabolite of tetrahydrocannabinol (9.8%) followed by various stimulants related to amphetamine and cocaine (1.0%). Indications of anabolic steroid use were found in 0.4% of urine samples but originated from contraceptives containing norethisterone. The present study provided unambiguous data on the status quo of drug (ab)use by adolescents hoping for a career related to elite sport or sports sciences. No use of anabolic steroids was detected. However, evidence for stimulants and tetrahydrocannabinol administration was obtained, although not reported by any participant, which highlights the issue of under-reporting in surveys based solely on questionnaires.  相似文献   

Do parents' own school memories contribute to their satisfaction with their child's school?     

Hannu Räty 《Educational studies》2010,36(5):581-584

In the present study a group of parents with a child in preschool were asked to give evaluative recollections of their own primary school and then to indicate the level of their satisfaction with the functioning of their child's school repeatedly in the course of the child's compulsory education. Across the follow‐up, the parents with positive recollections showed more satisfaction than those with negative recollections did. Over the years, the level of satisfaction decreased in all other groups but the fathers with positive recollections. Parents' recollections may be seen as an experience‐based component of their attitudes towards education.  相似文献   

Preverbal infants anticipate that food will be brought to the mouth: an eye tracking study of manual feeding and flying spoons     

Kochukhova O  Gredebäck G 《Child development》2010,81(6):1729-1738

This study relies on eye tracking technology to investigate how humans perceive others' feeding actions. Results demonstrate that 6-month-olds (n = 54) anticipate that food is brought to the mouth when observing an adult feeding herself with a spoon. Still, they fail to anticipate self-propelled (SP) spoons that move toward the mouth and manual combing actions directed toward the head. Ten-month-olds (n = 54) and adults (n = 32) anticipate SP spoons; however, only adults anticipate combing actions. These results suggest that goal anticipation during observation of feeding actions develops earlier and is less dependent on directly perceived actions than goal anticipation during observation of other manual actions. These results are discussed in relation to experience and a possible phylogenetic influence on perception and understanding of feeding.  相似文献   

Word length and word frequency affect eye movements in dyslexic children reading in a regular (German) orthography     

Ute Dürrwächter  Alexander N. Sokolov  Jens Reinhard  Gunther Klosinski  Susanne Trauzettel-Klosinski 《Annals of dyslexia》2010,60(1):86-101

We combined independently the word length and word frequency to examine if the difficulty of reading material affects eye movements in readers of German, which has high orthographic regularity, comparing the outcome with previous findings available in other languages. Sixteen carefully selected German-speaking dyslexic children (mean age, 9.5 years) and 16 age-matched controls read aloud four lists, each comprising ten unrelated words. The lists varied orthogonally in word length and word frequency: high-frequency, short; high-frequency, long; low-frequency, short; low-frequency, long. Eye movements were measured using a scanning laser ophthalmoscope (SLO). In dyslexic children, fixation durations and the number of saccades increased both with word length and word frequency. The percentage of regressions was only increased for low-frequency words. Most of these effects were qualitatively similar in the two groups, but stronger in dyslexic children, pointing to a deficient higher-level word processing, especially phonological deficit. The results indicate that reading eye movements in German children are modulated by the degree of difficulty, and orthographic regularity of the language can determine the nature of modulation. The findings suggest that, similar to Italian but unlike English readers, German children prefer indirect sub-lexical strategy of grapheme-phoneme conversion.  相似文献   

Was verbinden Museumsbesucher mit Lernen im Museum und in der Schule?     

Dipl.-Päd. Gun-Brit Thoma  Univ.-Prof. Dr. Manfred Prenzel 《Zeitschrift für Erziehungswissenschaft》2009,12(1):64-81

The present study was conducted in the Deutsches Museum in Munich, the Senckenberg Museum in Frankfurt am Main and the Landesmuseum Schloß Gottorf in Schleswig. 160 museum visitors were asked about their conceptions of learning in school and learning in a museum. These conceptions generate a persons’ individual concept of learning. It is formed by the influence of the subjectively different experiences each person makes in varying learning situations. Since every learning environment offers different opportunities and possibilities for learning, it can be assumed that there are location-specific concepts of learning. The results of this study show that concepts of learning in school can be differentiated from concepts in a museum; albeit reactive and constructive concepts of learning were found for schools as well as for museums. In addition it was found that different people’s concepts of learning depend on their places of learning.  相似文献   

Metacognitive learning: the effect of item-specific experience and age on metamemory calibration and planning     

Gregory P. Krätzig  Katherine D. Arbuthnott 《Metacognition and Learning》2009,4(2):125-144

Metacognition is a person’s ability to think about their own thinking, to think about their own cognitive ability and knowledge and then to take the appropriate regulatory steps when a problem is detected. Although considerable research has examined the level of such ability in various contexts, there has been relatively little study on whether metacognition can be improved with experience. The present research examined this question for both general (lifetime experience) and item-specific (repetition) experience. Metamemory calibration (correlations between memory predictions and performance) and planning (correlations between memory predictions and study decisions) were examined in both young and older adults. The results indicated that both calibration and planning efficiency increased only with item-specific experience, and even though calibration benefited from experience equally for young and older adults, only younger adults showed better improvement in planning with experience.

Katherine D. ArbuthnottEmail:

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The Bologna process and its impact on higher education at Russia’s margins: the case of Kaliningrad     

Stefan Gänzle  Stefan Meister  Conrad King 《Higher Education》2009,57(4):533-547

Embracing the Russian Federation since 2003, the Bologna process is no longer exclusively confined to western European countries. As early as 1999, Vladimir Putin declared the Russian exclave of Kaliningrad, wedged between Lithuania and Poland, as a potential pilot region for intensified cooperation between Russia and the EU on a number of policy areas, including higher education. In this paper, we study whether the Bologna process has served to underpin these ambitions. With a view to the EU, we will ask to what extent the European Union has proffered a model or directly influenced the path for transformation of Kaliningrad’s higher education system. We argue that a number of Kaliningrad-based actors in higher education have recognized the salience of European models and the need to work closely with partners from the EU, while Moscow only allows for marginal discretion in terms of Kaliningrad’s higher educational policy.

Conrad KingEmail:

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