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To examine the role of social media use in the process of political disaffection, a web survey of young adults was conducted prior to the 2012 U.S. presidential election. Results showed that the positive relationship between cynicism and apathy was weaker for respondents who paid greater attention to social media for political information. Also, the indirect relationship between cynicism and apathy through external political efficacy was weaker for those who paid greater attention to social media for political information. We discuss implications for the role of social media in political disaffection.  相似文献   
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We examined the effect of a combination of astaxanthin (AX) supplementation, repeated heat stress, and intermittent reloading (IR) on satellite cells in unloaded rat soleus muscles. Forty-nine male Wistar rats (8-week-old) were divided into control, hind-limb unweighting (HU), IR during HU, IR with AX supplementation, IR with repeated heat stress (41.0–41.5 °C for 30 min), and IR with AX supplementation and repeated heat stress groups. After the experimental period, the antigravitational soleus muscle was analyzed using an immunohistochemical technique. Our results revealed that the combination of dietary AX supplementation and heat stress resulted in protection against disuse muscle atrophy in the soleus muscle. This protective effect may be partially due to a higher satellite cell number in the atrophied soleus muscle in the IR/AX/heat stress group compared with the numbers found in the other groups. We concluded that the combination treatment with dietary AX supplementation and repeated heat stress attenuates soleus muscle atrophy, in part by increasing the number of satellite cells.  相似文献   
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We propose an on-demand multiparth routing algorithm in a mobile ad hoc network for video transmission and evaluate its real world performance in video streaming application. There have been a number of multipath routing protocols extended from AODV which is a well-known single path routing protocol. Multipath routing protocols indicate good performance in the reduction of route discovery latency and unnecessary routing packets in simulations. We show that the route establishment using source route lists provided by us (Hu and Johnson, 2002) can reduce the route discovery latency, select stable routes automatically, and work well for live video streaming without limitation of the hop count based approaches. We evaluate this proposed method compared with the original AODV by using eight laptop PCs and demonstrate live streaming experiments.  相似文献   
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ABSTRACT

Although field education is considered the signature pedagogy of social work, the work of field coordinators appear to remain peripheral to other aspects of social work education, such as coursework and research. In this article, we suggest that field coordination requires a far more complex set of knowledge and skills than merely matching students with placements based on availability and interest. Using critical and relational theories, this article conceptualizes field coordination as a negotiated pedagogy in which the coordinators navigate complex and often competing needs among students, field agencies, and social work practice. In making visible its nuances and intricacies, we suggest that field coordination is a critical relational pedagogy essential to advancing social work education.  相似文献   
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Some recent literature is reviewed to argue that institutions of higher education have made little adjustments to either their admission practices or their curricula to help nurture varied talents among their students. Diversity seems to be lacking throughout the academic community from the undergraduate level to the professional circles. The need for renewed spirit of experimentation and of tolerance of pluralism is pointed out.  相似文献   
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