Comparative study of teaching content in teacher education programmes in Canada,Denmark, Finland and Singapore     

Jens Rasmussen  Martin Bayer 《课程研究杂志》2013,45(6):798-818

This article presents the results of a comparative study of the content in selected teacher education programmes for primary and lower secondary teachers in Canada, Denmark, Finland and Singapore. First and foremost, the study is a comparison between teacher education programmes in, on the one hand, Canada, Finland and Singapore, all of which score highly in international comparisons such as PISA and TIMMS, and on the other hand Denmark, which receives average scores, but it also functions as a comparison between all four countries. The study covers the following subjects: pedagogy and mathematics. The study does not offer proof of any clear difference between the Danish teacher education programmes and those found in the top-performing countries. Two main findings are: (1) philosophically based professional knowledge, much of which is normative in character, forms an extensive part of the body of professional knowledge within the Danish teacher education programmes, which is not true of the programmes in the Top-3 countries and (2) the programmes in Canada and Singapore more frequently employ literature combining research-based knowledge with practical guidance and experiences, while the programmes in Denmark and Finland keep these knowledge forms separate.  相似文献   

Caffeine supplementation does not affect match activities and fatigue resistance during match play in young football players     

Svein Arne Pettersen  Peter Krustrup  Mads Bendiksen  Morten Bredsgaard Randers  Joao Brito  Jens Bangsbo 《Journal of sports sciences》2014,32(20):1958-1965

Abstract

The study examined the effect of caffeine supplementation on match activities and development of fatigue during a football match. In a randomised, double-blind cross-over design, two experimental football games separated by 7 days were organised between the junior teams of two professional football clubs (17.6 ± 1.1 years (±s), 71.7 ± 6.9 kg, 13.9% ± 5.0% body fat). The players ingested either a capsule of 6 mg · kg^?1 b.w. caffeine or placebo (dextrose) 65 min prior to the matches. Match activities were assessed using the ZXY match analysis system, and a Yo-Yo intermittent recovery test–level 2 (Yo-Yo IR2) was conducted immediately post-game. Heart rate was monitored throughout the game, and blood samples were obtained at baseline, half-time and after the game. There were no differences between caffeine and placebo regarding total distance covered (10,062 ± 916 vs 9854 ± 901 m), high-intensity running (557 ± 178 vs 642 ± 240 m), sprinting distance (109 ± 58 vs 112 ± 69 m) or acceleration counts (123 ± 31 vs 126 ± 24). In both trials, players displayed lower (P < 0.05) values in total distance and acceleration counts in the last 15 min compared to all other 15-min periods of the matches. Post-game Yo-Yo IR2 performance was not different between game trials (caffeine: 829 ± 322 m; placebo 819 ± 289 m). In conclusion, oral caffeine administration does not appear to have an ergogenic effect in young football players during match play.  相似文献   

Self-reported physical activity within and outside the neighborhood: Criterion-related validity of the Neighborhood Physical Activity Questionnaire in German older adults     

Malte Bödeker  Jens Bucksch  Birgit Wallmann-Sperlich 《Measurement in physical education and exercise science》2018,22(1):61-69

The Neighborhood Physical Activity Questionnaire allows to assess physical activity within and outside the neighborhood. Study objectives were to examine the criterion-related validity and health/functioning associations of Neighborhood Physical Activity Questionnaire-derived physical activity in German older adults. A total of 107 adults aged ≥60 years completed the Neighborhood Physical Activity Questionnaire and Short Form 12 Health Survey. A subsample of 58 participants wore piezoelectric pedometers for 7 consecutive days. Rank correlation coefficients (ρ) along with 95% confidence intervals (CIs) were computed for the criterion-related validity and health/functioning associations of single Neighborhood Physical Activity Questionnaire modules and total physical activity. Criterion-related validity was moderate (ρ ≤ .60) for total physical activity, total walking, and neighborhood walking, but low (ρ ≤ .40) for walking outside the neighborhood. Health/functioning associations were moderate for recreation walking and low for total physical activity, total walking, and walking within as well as outside the neighborhood. The study provides low-to-moderate validity evidence of Neighborhood Physical Activity Questionnaire-derived physical activity in older adults.  相似文献   

Movement pattern and physiological response in recreational small-sided football – effect of number of players with a fixed pitch size     

Morten B. Randers  Christina Ørntoft  Marie Hagman  Jens J. Nielsen  Peter Krustrup 《Journal of sports sciences》2018,36(13):1549-1556

Recreational soccer is an effective health-promoting activity, but it is unclear how different game formats influence internal and external load. Thus, to be able to advise how to maximise the outcome of recreational football, we examined movement pattern and physiological response in 11 untrained men (32.6 ± 6.7 yrs, 23.3 ± 4.9 fat%, 43.4 ± 5.3 ml·min^?1·kg^?1) during three football sessions comprising 4 × 12 min of 3v3, 5v5 or 7v7 with a constant pitch size of 20 × 40 m. Movement pattern, heart rate (HR), blood lactate and RPE were measured during and after the 12-min periods. Greater (P < 0.05) total distance and high-speed distance was covered during 3v3 than 5v5 (14 and 30%) and 7v7 (15 and 75%). Mean HR was higher in 3v3 (85.7 ± 5.7%HRmax) and 5v5 (84.2 ± 5.1%HRmax) than in 7v7 (80.7 ± 4.6%HRmax, P < 0.05) and percentage time >90%HR was higher in 3v3 (43 ± 18%, P < 0.05) than in 5v5 (28 ± 21%) and 7v7 (18 ± 14%). Blood lactate was higher in 3v3 (7.4 ± 2.7 mmol·l^?1) than in 7v7 (4.5 ± 2.2 mmol·l^?1, P < 0.001) but not in 5v5 (6.1 ± 2.1 mmol·l^?1, P = 0.061). RPE was higher in 3v3 (6.7 ± 2.3, P < 0.01) than in 5v5 (5.2 ± 2.2) and 7v7 (4.3 ± 2.3). In conclusion, higher external and internal load was found with fewer players, when the pitch size is fixed.  相似文献   

Stress-related psychological factors for back pain among athletes: Important topic with scarce evidence     

Jahan Heidari  Monika Hasenbring  Jens Kleinert  Michael Kellmann 《European Journal of Sport Science》2017,17(3):351-359

Health issues represent a frequent problem for athletes, as this particular demographic is repeatedly confronted with physically and psychologically stressful situations. Back pain (BP) materialises as comparatively common health problem being regarded as functionally limiting and psychologically straining burden for athletes. According to research conducted on athletes with BP, biomechanical and physiological mechanisms emerge as influential, whereas stress-related psychological factors appear to be neglected. For athletic injuries, the essential impact of psychological processes on injury occurrence and return from injury has already been corroborated. Hence, the aim of this literature review is to: (1) introduce a conceptual differentiation between injuries and BP; (2) summarise the results obtained regarding stress-related psychological aspects for injuries; and (3) connect the injury research to the state-of-the-art evidence regarding stress-related factors for BP among athletes. A distinction between injuries and BP could be established based on previous definitions, despite the fact that a considerable overlap between both concepts prevails. Injuries can be attributed to a physical origin, whereas BP frequently lacks this physical criterion. For BP, our enquiry yielded four studies including psychological measures of stress – with two studies specifically examining the association between BP and psychological stress among athletes longitudinally. Abundant findings from the general population support the importance of considering psychological and specifically stress-related factors in BP prevention and rehabilitation, but evidence related to the athletic field remains elusive. Further scientific investigations with a wider methodological approach are needed to deepen the knowledge about the crucial relationship between psychological stress, BP, and athletes.  相似文献   

How to improve the relationship between theory and practice in teacher education     

Jens Rasmussen  Andreas Rash-Christensen 《Educational Research for Policy and Practice》2015,14(3):213-230

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Understanding Risk: Implications for Tracking High‐Risk Infants and Making Early Service Delivery Decisions     

Kenneth G. Jens  Betty N. Gordon 《International Journal of Disability, Development & Education》1991,38(3):211-224

THIS PAPER EXAMINES current conceptualizations of risk and discusses ways in which identification and tracking of infants and children at‐risk might be accomplished. Models that have been developed for identifying and tracking children at‐risk are reviewed and the concepts of vulnerability and resiliency, as they relate to risk, are considered. Implications of the ways in which we define risk and develop tracking programs are considered.  相似文献   

Book review     

Jens Holger Lorenz  John P. Pace 《Educational Studies in Mathematics》1991,22(1):87-103

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Contract arrangements in the Nordic countries—solving the efficiency/effectiveness dilemma?     

Åse Gornitzka  Bjørn Stensaker  Jens‐Christian Smeby  Harry De Boer 《Higher Education in Europe》2004,29(1):87-101

Steering higher education through the establishment of a “contract” between the state and the individual higher education institution is becoming an increasingly popular way of regulating the relationship between the two actors in the Nordic countries. This article addresses some theoretical foundations for this approach derived from principal/agent theory and analyzes the strengths and weaknesses of established contract arrangements in Finland, Sweden, and Denmark. The article discusses the potential of using such arrangements in relation to the efficiency/effectiveness dilemma. It is emphasized that trust is vital in solving this dilemma and that the balance between the need for public accountability, the efficient regulation of higher education, and institutional change must be given high priority in refining existing contractual arrangements.  相似文献   

What did PISA and TIMSS ever do for us?: the potential of large scale datasets for understanding and improving educational practice     

Julian Elliott  Lazar Stankov  Jihyun Lee  Jens F. Beckmann 《比较教育学》2019,55(1):133-155

ABSTRACT

There appears to be something of an intellectual and philosophical gulf between education researchers who seek insights from statistical analyses of complex data-sets such as those provided by the OECD (PISA), and others who seek to develop rich, contextualised socio-historical understandings that can shed light upon why particular classroom practices operate and are sustained within a given milieu. This paper outlines these different perspectives, with particular reference to non-cognitive factors. Detailed analysis of the roots of high academic achievement, and associated challenges to student wellbeing, in many East Asian countries, is provided. The important influence of broad political and societal factors is highlighted by reference to cross-cultural differences across a large number of countries. The paper concludes by stating that while data from large datasets can assist in gaining greater understanding of cross-cultural differences, to be meaningful, such analyses should be incorporated within complex ecosystemic accounts.  相似文献