The Effect of Implicit Stereotypes on the Physical Performance of Older Adults     

Gabriele Moriello  J. James Cotter  Nathalie Shook  Diane Dodd-McCue  E. Ayn Welleford 《Educational gerontology》2013,39(8):599-612

The purpose of this study was to explore how stereotypes affect physical performance in older adults. During Experiment 1, older adults were primed with objects representing aging stereotypes to determine whether these objects can activate stereotypes of aging. Results from the first part of this study provide evidence that certain material objects have implicit meaning and can activate stereotypes of aging. During Experiment 2, 96 community dwelling older adults were randomly assigned to one of three groups: exposure to positive stereotypes of aging (n = 32), exposure to negative stereotypes of aging (n = 32), or a neutral condition (n = 31). Gait speed, standing balance, and lower extremity muscle performance were tested before and after exposure to the objects. Results revealed no significant differences between those exposed to positive stereotypes, negative stereotypes, or the neutral condition. Physical performance was not affected by exposure to objects related to stereotypes of aging. Compared to lab settings where stereotypes are activated on a subliminal level, there may be multiple factors competing for the control of behavior when stereotypes are presented as objects, which may lessen the effect of stereotype activation on behavior.  相似文献   

Teacher noticing and its growth toward expertise: an expert–novice comparison with pre-service and in-service secondary mathematics teachers     

Bastian  Anton  Kaiser  Gabriele  Meyer  Dennis  Schwarz  Bj&#;rn  K&#;nig  Johannes 《Educational Studies in Mathematics》2022,109(2):205-236

Educational Studies in Mathematics - Mathematical modelling competencies have become a prominent construct in research on the teaching and learning of mathematical modelling and its applications in...  相似文献   

Through the Looking Glass: Twenty Years of Chinese Internet Research     

David Kurt Herold  Gabriele de Seta 《The Information Society》2013,29(1):68-82

This article is a report on a research project that collected detailed information on articles, book chapters, books, and so on, published by academics on the Chinese Internet between 1990 and early 2013. The findings of the meta-review of 20 years of Chinese Internet research, as gleaned from quantitative and qualitative analysis of the collected body of publications, are presented and discussed in this report. It engages with the conclusions drawn by previous meta-studies, and seeks to shed a critical, self-reflexive light onto the main discursive formations of their research field. The article concludes that there is still a lot of scope for growth in studies of the Internet in China and lists several of the identified research gaps.  相似文献   

Extreme case learning: the manager perspective on rare knowledge and capabilities development     

Gabriele?SuderEmail author  Andreas?Birnik  Niklas?Nielsen  Monica?Riviere 《知识管理研究与实践》2017,15(1):130-145

International strategy is enhanced by organizations’ ability to learn in host markets; yet, it remains ambiguous how post-entry knowledge gaps between home – and host country shape MNE’s absorptive capacity. This article builds on the specific contributions of ‘extreme case’ internationalization to advance literature in this field. We foster the understanding of the role of rare knowledge and the mechanisms that link knowledge acquisition to absorptive capacity dynamics used in the internationalization path of multinational enterprises (MNEs). We opt for in-depth qualitative research into the post-entry phase of ‘extreme’ (thus particularly crude) international joint venture (IJV) investment, and analyze the perspective of managers from a developed economy MNE located in a high-risk, weak-institutions host country. The firm’s absorptive capacity and its interaction with external environments that are categorized into four distinct contexts are found to be contingent upon pro-active experiential learning, concurrent to managerial willingness and simultaneous organizational commitments to learning and to exploiting rare knowledge. We thus uncover managerial perceptions of a knowledge gap identified as host-country challenges and resulting managerial solutions, which reveal rare learning opportunities and knowledge exploitation dynamics. The capacity to compensate for knowledge gaps is a critical key within the design and consolidation of an alternative internationalization path for developed-country MNEs. This challenges the traditional risk–return–commitment dependencies in prior literature.  相似文献   

Kieferchirurgische Operationsplanung mit Hilfe von Techniken der virtuellen Realit?t     

Dirk Siebert  Patrick Neumann  Armin Schulz  Gabriele Faulkner  Thomas Tolxdorff 《Informatik - Forschung und Entwicklung》2001,4(3):93-102

Für ein vollst?ndig computergestütztes Planungssystem zum Zwecke der kieferchirurgischen Operationsplanung ist die Bereitstellung von virtuellen Werkzeugen für den Chirurgen eine grundlegende Voraussetzung. Ausgehend von den Volumendaten mit Sch?del- und Kieferknochen des Patienten erm?glicht ein einfaches Interface unter Verwendung einer geeigneten Visualisierung und haptischer Eingabeger?te die interaktive Definition und Manipulation einzelner virtueller Knochensegmente. Wir haben moderne kraftrückgekoppelte Ger?te aus dem Niedrigpreisbereich eingebunden und auf ihre F?higkeit untersucht, das dreidimensionale Verst?ndnis im Planungsproze?durch Anlehnung an die Vorg?nge bei der chirurgischen Prozedur zu erh?hen. Durch diese Eingabeger?te ist es m?glich, die Knochensegmentierung für eine Osteotomie des Unterkiefers intuitiver und schneller durchzuführen. Die definierten Teilvolumina ergeben zusammen mit ihrer r?umlichen Neuanordnung auf Grundlage einer kephalometrischen Analyse einen Operationsplan. Nach erfolgter Planung werden die Planungsergebnisse in den Operationssaal übertragen. Die intraoperativen Techniken beinhalten die Visualisierung der Planungsergebnisse, die Steuerung der Anwendung über Sprache und die Bestimmung der Patientenposition mittels eines elektromagnetischen 3D-Trackingsystems.  相似文献   

Self-controlled feedback: does it enhance learning because performers get feedback when they need it?     

Chiviacowsky S  Wulf G 《Research quarterly for exercise and sport》2002,73(4):408-415

This paper examines whether self-controlled feedback schedules enhance learning, because they are more tailored to the performers' needs than externally controlled feedback schedules. Participants practiced a sequential timing task. One group of learners (self-control) was provided with feedback whenever they requested it, whereas another group (yoked) had no influence on the feedback schedule. The self-control group showed learning benefits on a delayed transfer test. Questionnaire results revealed that self-control learners asked for feedback primarily after good trials and yoked learners preferred to receive feedback after good trials. Analyses demonstrated that errors were lower on feedback than no-feedback trials for the self-control group but not for the yoked group. Thus, self-control participants appeared to use a strategy for requesting feedback. This might explain learning advantages of self-controlled practice.  相似文献   

Erratum to: Professional competencies of (prospective) mathematics teachers - cognitive versus situated approaches     

Gabriele Kaiser  Sigrid Blömeke  Johannes König  Andreas Busse  Martina Döhrmann  Jessica Hoth 《Educational Studies in Mathematics》2017,94(2):183-184

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The interplay among environmental attitudes,pro-environmental behavior,social identity,and pro-environmental institutional climate. A longitudinal study     

Gabriele Prati  Cinzia Albanesi  Luca Pietrantoni 《Environmental Education Research》2017,23(2):176-191

By using a panel design in a sample of 298 undergraduate/master students at an Italian public university, the present study aimed to test longitudinally the interplay among environmental attitudes, pro-environmental behavior, social identity, and pro-environmental institutional climate. The relationships were tested with cross-lagged analysis based on two waves over a 2-month period. The cross-lagged panel analysis revealed positive cross-lagged effects of social identity on environmental attitudes and pro-environmental institutional climate perceptions on social identity. Environmental attitudes and social identity at Time 1 did not predict Time 2 pro-environmental behavior. Pro-environmental behavior at Time 1 did not predict Time 2 environmental attitudes. Pro-environmental institutional climate perceptions at Time 1 did not predict Time 2 pro-environmental behavior. Finally, social identity at Time 1 did not predict Time 2 pro-environmental institutional climate perceptions.  相似文献   

Performance of gymnastics skill benefits from an external focus of attention     

Reza Abdollahipour  Gabriele Wulf  Rudolf Psotta  Miriam Palomo Nieto 《Journal of sports sciences》2015,33(17):1807-1813

The present study was designed to fill a gap in the literature on attentional focus and sports performance. Specifically, in contrast to most previous studies in which an external focus was directed at an implement, we used a gymnastics skill that did not involve the use of an implement. Furthermore, while most studies used only outcome measures of performance, we also assessed movement quality. Twelve-year-old gymnasts performed a maximum vertical jump with a 180-degree turn while airborne, with their hands crossing in front of their chest during the turn under three different focus conditions. Under the external focus condition, participants were asked to focus on the direction in which a tape marker, which was attached to their chest, was pointing after the turn. Under the internal focus condition, they were asked to focus on the direction in which their hands were pointing after the turn. Under the control condition, no focus instructions were given. The external focus condition resulted in both superior movement form and greater jump height than did the other two conditions, which produced comparable results. The present findings show that, similar to other tasks, the performance of form-based skills can be enhanced relatively easily by appropriate external focus instructions.  相似文献   

Enhancing research collaborations: Three key management challenges     

Gabriele Bammer 《Research Policy》2008,37(5):875-887

This conceptual paper explores three areas of research collaboration: (a) effectively harnessing differences, (b) setting defensible boundaries and (c) gaining legitimate authorization. The focus is on their potential lessons for individuals leading and managing research collaborations, evaluation of research partnerships and areas for further investigation. Examples from three partnerships - building the atomic bomb, the Human Genome Project and the World Commission on Dams - are used to highlight key elements of the ideas presented. The paper provides a framework for systematically thinking about integration of different perspectives and other elements essential to any particular collaboration. It also sketches out ideas for (1) managing differences which may destroy partnerships, (2) deciding what the collaboration should encompass, (3) understanding and accommodating forces which may distort what the collaboration is able to achieve, and (4) enlisting necessary supporters while preserving research independence.  相似文献