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Anne Focke Sina Spancken Christian Stockinger Benjamin Thürer Thorsten Stein 《European Journal of Sport Science》2016,16(7):787-793
Benefits of bilateral practice both for the non-dominant and for the dominant body side have been shown in several studies. Thereby, most of the studies included movement tasks of the upper extremity or investigated sports games in which the ability of acting bilaterally is an essential basis for success and, thus, a bilateral practice is reasonable anyway. Individual unilaterally performed sports including movement tasks of the lower extremity are rarely investigated. Therefore, the aim of our study was to test if contralateral transfer due to bilateral practice can be found in an unilaterally performed sport including the lower extremity. We trained and tested 61 adolescent athletes in long jump to compare the jumping performance of the dominant leg after a 12-week practice period between two groups: a bilateral practice group that practiced specific long jump exercises with both the dominant and non-dominant leg and an unilateral practice group that practiced specific long jump exercises only with the dominant leg. Results showed a superior effect of bilateral practice compared to unilateral practice regarding the jumping performance of the dominant leg. The performance increase at post-test and retention-test for the dominant limb was significantly higher for the bilateral practice group (pre-to-post: 5.2%, pre-to-retention: 7.4%) compared to the unilateral practice group (pre-to-post: 3.4%, pre-to-retention: 4.5%). Thus, bilateral practice should be established in the early practice programmes of track and field athletes to improve the performance of the dominant take-off leg. 相似文献
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Anne Grimm Thorsten Mrosek Anna Martinsohn Andreas Schulte 《Environmental Education Research》2011,17(1):19-33
Although a large number of different organisations offer various forest education programmes within Germany, specific information (i.e., sectoral and programme content and provision at a state level) is lacking. This study used a survey of all 61 forest education organisations (43 respondents) in the state of North Rhine‐Westphalia, Germany, to evaluate its forest education sector, with a specific focus on the organisations, demand for its services, forest educational programmes and framework conditions. Input from expert interviews was also used to develop recommendations. The study indicates that, especially with children as the main target group, many non‐formal programmes are offered to support the formal environmental education sector and to promote leisure activities in the forest. Yet, despite a high demand for forest education, low personnel resources restrict the number of visits and activities, principally owing to limited financial resource. We also discuss the provision of innovative new educational programmes and supplementary services, combined with increased quality management, that could be beneficial to the future development of the sector in NRW. 相似文献
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Jun.-Prof. Dr. Thorsten Schneider 《Zeitschrift für Erziehungswissenschaft》2011,14(3):371-396
In Germany, teachers give a recommendation on the type of school a student should attend after primary school. In some federal states, access to a more demanding school type is restricted to students holding an appropriate recommendation. In a first step, we discuss different theories and approaches as to why a student??s social origin or migration background has an impact on the recommendation, irrespective of school performance. Then we test different hypotheses using data of a combined teacher, student, and parent survey, conducted from the 3rd grade on in Bavaria and Hessen. Overall, we have information on 1.644 students and 147 teachers. We find strong relationships between social origin and school recommendations as teachers take parents?? educational aspirations into account. Students?? positive school behavior has a positive impact on getting a recommendation for a higher school type; however, the influence of parents?? socio-economic status remains. The data show no evidence for children with migration backgrounds facing greater risks of receiving lower recommendations than other children??irrespective of their family language. 相似文献
4.
Reliability and Validity of Real-Time Response Measurement: a Comparison of Two Studies of a Televised Debate in Germany 总被引：1，自引：0，他引：1
Maier Jurgen; Maurer Marcus; Reinemann Carsten; Faas Thorsten 《Int. Journal of Public Opinion Research》2007,19(1):53-73
This paper investigates the reliability and validity of real-timeresponse measurements (RTR). It is based on a comparison oftwo quasi-experimental studies independently conducted on thesecond televised debate of the two major candidates for chancellorin the 2002 German federal election campaign. Participants inBamberg and Mainz—two mid-sized German cities—followedthe debate on a large-scale screen. The viewers’ immediatereactions to the candidates were measured in real-time. In termsof technicalities and substance, both quasi-experiments differedin several important respects. For example, the system usedin Mainz was based on a control unit with a 7-point scale andyielded one merged metric dimension for both candidates. TheBamberg system measured positive and negative impressions ofthe candidates independently, yielding categorical data. Despitethese operational differences, the results show that both methodsrender reliable results that also meet the criteria of face,construct, and criterion validity. Hence, RTR measurements providevaluable, unique insights into subjective immediate reactionsto candidates in televised debates and help to explain post-debateperceptions and attitudes. Received for publication March 23, 2005. Revision received December 14, 2005. 相似文献
5.
题目：一种支持产品平台设计的多准则模块划分方法 总被引：2，自引：0，他引：2
目的：研究多准则约束下的产品模块划分方法,为企业建立稳健的模块化产品平台奠定基础。方法：采用改进的多目标进化算法对建立的多准则模块划分数学模型求解,并采用模糊集合评价机制进行最优解的寻取,得到基于多准则模块划分方法的产品模块划分结果。结论：通过改进的多目标进化算法求解多准则模块划分模型,能够得到有效支持产品平台设计的产品模块划分方案。通过与已有优化方法的比较验证了本文提出的多准则模块划分方法的优越性。 相似文献
6.
Animations presented at different speed are assumed to differentially interact with learners’ perception and cognition due to the constraints imposed by learners’ limited sensitivity to incoming dynamic information. To investigate the effects of high and low presentation speed of animation, two studies were conducted. In Study 1, participants were 55 students who learned about the functioning of a four-stroke engine from an animation with user-controlled presentation speed. In Study 2, eye movements of 19 students were analysed for different system-controlled presentation speeds of animation. Results indicated that high presentation speeds accentuated global events (i.e., macro-events), whereas low speeds accentuated local events (i.e., micro-events). However, eye movements were primarily affected by the content rather than the presentation speed of animation. 相似文献
7.
Thorsten Busch 《Ethics and Information Technology》2011,13(4):339-353
This conceptual article discusses strategies of corporations in the information and communication technologies (ICT) sector and their role in the conflict over access to knowledge in the digital environment. Its main hypothesis is that ICT corporations are very capable actors when it comes to bridging digital divides in both developed and developing countries??maybe even the most capable actors. Therefore, it is argued that ICT corporations could use their capabilities to help citizens gain sustainable access to knowledge in order to enable them to lead self-sufficient lives. In a nutshell, capabilities are presented as both the input (capabilities of ICT corporations) as well as the output (capability building for empowering citizens) of corporate strategy-making focusing on fair ICT. Corporate citizenship is put forth as the theoretical concept bridging corporate strategies and access to knowledge: If ICT corporations act in accordance with their self-understanding of being ??good corporate citizens??, they could be crucial partners in lessening digital divides and helping citizens gain access to knowledge. From the perspective of ??integrative economic ethics?? (Ulrich 2008), it is argued that ICT corporations have good reason to actively empower citizens in both developed and developing countries by pursuing ??inclusive?? strategies in many fields, such as open-source software development. That way, ICT corporations could enable, support and provide citizens with capabilities enabling them to help themselves. In order to make inclusive business models work, the rules and regulations companies find themselves in today must enable them to act responsibly without getting penalized by more ruthless competitors. This article explores several cases from the ICT field to illustrate the interplay between a responsible business model and the rules and regulations of the industry. From a capabilities perspective, the most desirable mix of corporate strategies and industry regulation is one that results in the highest level of generativity (Zittrain 2008). Thus, ICT should not be closed systems only driven by the company behind them. Instead, they need to be open for the highest possible level of third-party innovation. 相似文献
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Elsie Anderberg Lennart Svensson Christer Alvegrd Thorsten Johansson 《Educational Research Review》2008,3(1):14-29
In research on learning, one of the fundamental questions concerns issues of language and thought. A number of empirical studies have revealed the interplay between understanding of subject matter and meanings of language expressions to be more dynamic and ambiguous than is commonly acknowledged. The aim of this article is to outline an alternative intentional-expressive approach to the interplay between use of language and understanding of subject matter as a contribution to the theoretical development in research on learning. The approach is based on a conception of language that focuses on the function of learners’ language use in relation to subject matter in developing and expressing understanding. The learner is seen as an agent, and the focus is on the use of language from the learner's perspective. Four aspects of the relation between learners and subject matter are described and discussed. Conclusions concern the value of this approach as a complement and alternative to the dominant communicative and cognitive approaches to the role of language in learning. 相似文献
10.
Thorsten Posselt Nizar Abdelkafi Luise Fischer Cyrine Tangour 《Higher Education Quarterly》2019,73(1):100-115
During the last decades, there has been increasing interest in the role of the university as a key stakeholder and agent in innovation and regional development. In the face of new technologies, especially growing digitalisation and new societal and economic challenges, this paper proposes to reconsider the role of the university in the innovation system. More particularly, we introduce the idea of a business model for the entrepreneurial university of the future and develop nine conceptual theses. The theses are based on four elements of a business model concept: value proposition, creation, delivery and capture. With the help of the nine theses, we aim to trigger new discussions regarding policy implications for the future university in Europe. 相似文献