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61.
It is common knowledge that physical activity leads to numerous health and psychological benefits. However; the relationship between children's physical activity and academic achievement has been debated in the literature. Some studies have found strong, positive relationships between physical activity and cognitive outcomes, while other studies have reported small, negative associations. This study was a comprehensive, quantitative synthesis of the literature, using a total of 59 studies from 1947 to 2009 for analysis. Results indicated a significant and positive effect of physical activity on children's achievement and cognitive outcomes, with aerobic exercise having the greatest effect. A number of moderator variables were also found to play a significant role in this relationship. Findings are discussed in light of improving children's academic performance and changing school-based policy. 相似文献
62.
Ji-Hyun Ahn 《亚洲交流杂志》2013,23(6):445-463
This paper examines the rise of anti-Korean sentiment in contemporary Taiwan particularly at the turn of the 2010s. It moves beyond conceptualizing emotion as psychological status to conceive anti-Korean sentiment as a cultural text that debunks the complexity of emotion as an active agent of collective (un)consciousness. Specifically, the paper considers anti-Korean sentiment in Taiwan as an affective space where young Taiwanese demonstrate their active engagement in (re)locating Taiwan in the global imaginative map and their struggle for national identity in the midst of increasing geopolitical tensions in East Asia. Instead of seeing anti-Korean sentiment from an international relations perspective, this paper studies anti-Korean sentiment from a bottom-up perspective through in-depth interviews with young Taiwanese who are actively engaging with anti-Korean discussions and explore various ways that anti-Korean sentiment mediates and transforms imaginative relations between Taiwan and Korea and beyond. 相似文献
63.
Testing the Identifiable Victim Effect With Both Animal and Human Victims in Anti-Littering Messages
Evan K. Perrault Kami J. Silk Sarah Sheff Jisoo Ahn Alice Hoffman Daniel Totzkay 《Communication Research Reports》2013,30(4):294-303
ABSTRACTThe identifiable victim effect is when people are more willing to help identified individuals than those who are unidentified, or statistical, victims. It has primarily been tested in experiments with humans as the victims. A lack of research exists testing whether animal victims could elicit the same level of help, or reactions, as human victims. This study tests the identifiable victim effect with both human and animal stimulus messages focused on the consequences of littering. A total of 198 undergraduate students were randomly assigned to view one of three messages (i.e., an identifiable human victim message, identifiable animal victim message, or a nonvictim control message). While the animal message elicited greater distress and empathy than the human message, the three messages did not differ on behavioral intention outcomes. This study fills a gap in the identifiable victim literature, and it provides insight about responses to risk messages aimed at increasing a prosocial behavior. 相似文献
64.
Asia Pacific Education Review - The present study focuses on the relationship between university faculty members’ organizational citizenship behavior (OCB), affective organizational... 相似文献
65.
Asia Pacific Education Review - In the original publication of the article, the Acknowledgements section was missed and it has been included in this Correction. 相似文献
66.
Racetubes, a conventional system employing hollow glass tubes, are typically used for monitoring circadian rhythms from the model filamentous fungus, Neurospora crassa. However, a major technical limitation in using a conventional system is that racetubes are not amenable for real-time gas perturbations. In this work, we demonstrate a simple microfluidic device combined with real-time gas perturbations for monitoring circadian rhythms in Neurospora crassa using bioluminescence assays. The developed platform is a useful toolbox for investigating molecular responses under various gas conditions for Neurospora and can also be applied to other microorganisms. 相似文献
67.
Hyung Jun Ahn Paul Childerhouse Gottfried Vossen Habin Lee 《International Journal of Information Management》2012
This paper critically discusses the use of Extensible Markup Language (XML) for agile supply chains and proposes practical guidelines and future research directions for the field. XML has been identified by many as a prominent technology for enabling electronic supply chain integration, but the adoption of it in the industry has been rather slow and limited. This paper discusses the factors that enable agility in supply chains, and explains why XML is the best candidate for facilitating such factors. Then the major XML-based integration initiatives such as ebXML, RosettaNet, and Web Services are diagnosed in terms of their pros and cons for supply chain agility, as well as the reasons for their slow diffusion. Based on the discussion, this paper proposes that: the integration efforts need to first focus on the industries that need agility; stringent business process standards are necessary; and implementation should be made much easier and more affordable for small and medium enterprises (SMEs). Further research issues are also suggested based on the discussion. 相似文献
68.
Marilyn A. Winkleby Judith Ned David Ahn Alana Koehler Jeanne D. Kennedy 《Journal of Science Education and Technology》2009,18(6):535-545
Despite decades of precollege science education programs, African Americans, Latinos, and Native Americans remain critically
underrepresented in science and health professions. This report describes college and career outcomes among graduates of the
Stanford Medical Youth Science Program (SMYSP), a 5-week summer residential program for low-income high school students among
whom 97% have been followed for up to 21 years. Approximately 24 students are selected annually, with participation limited
to low-income students who have faced substantial personal hardships. Undergraduate and medical students provide key program
leadership and training. The curriculum is based on science inquiry education and includes hospital internships, anatomy practicums,
research projects, faculty lectures, college admissions/standardized test preparation, and long-term college and career guidance.
A total of 476 high school students participated between 1988 and 2008, with 61% from underrepresented ethnic minority groups.
Overall, 78% of African American, 81% of Latino, and 82% of Native American participants have earned a 4-year college degree
(among those admitted to college, and excluding those currently attending college). In contrast, among 25–34-year old California
adults, 16% of African Americans, 8% of Latinos, and 10% of Native Americans earn a 4-year college degree. Among SMYSP’s 4-year
college graduates, 47% are attending or have completed medical or graduate school, and 43% are working as or training to become
health professionals. SMYSP offers a model that expands inquiry-based science education beyond the classroom, and recognizes
the role of universities as “high school interventionists” to help diversify health professions. 相似文献
69.
This paper studies a relative position keeping problem in satellite formation flying with input saturation. The relative motion dynamics is designed with polytopic-type uncertainties by considering elliptic and noncoplanar formation, and unknown angular rate and acceleration within some boundary. A composite nonlinear feedback control law is developed by using a low-and-high gain control scheme with an algebraic Riccati inequality (ARI). In the presence of input saturation and disturbances, finite-gain L∞ stability of the relative motion dynamics is ensured using the proposed control law. Additionally, the domain of attraction for the stability is evaluated by formulating an optimization problem. Through numerical simulations, the validity of the proposed scheme is illustrated. 相似文献