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The influence of television news over public opinion is tracedto the ‘accessibility bias’ in processing information.In general, the argument stipulates that information that canbe more easily retrieved from memory tends to dominate judgments,opinions and decisions. In the area of public affairs, moreaccessible information is information that is more frequentlyof more recently conveyed by the media. Four different manifestationsor the accessibility bias in public opinion are described includingthe effects of news coverage on issue salience, evaluationsof presidential perfomance, attributions of issue responsibility,and voting choices. 相似文献
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Radhika Iyengar 《Compare》2012,42(6):839-862
This article investigates the association between social capital and education in Jhabua, a tribal dominated district of central India. The case study analysis showed a disconnection between social capital and education in the majority of the villages. However, two of the fourteen villages showed that empowerment of the civil society made formal social organizations like PTAs effective, and also that informal networks play a key role in accountability. This article presents the case that although institutional structures are in place to promote the role of social capital in education, social capital effectiveness depends on a community-based catalyst. 相似文献
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Leo Ng Dorianne Sherry Wei Bing Loh Andreas Myhre Sjurseth Shrikant Iyengar Catherine Wild 《Journal of sports sciences》2016,34(18):1746-1751
The drag flick is the preferred method of scoring during a penalty corner in field hockey. Performing the drag flick requires a combination of strength, coordination and timing, which may increase susceptibility to injuries. However, injury prevalence in drag flickers has not previously been investigated. Therefore, this study compared the injury prevalence and severity of lower limb and lower back injuries between drag flickers and non-drag flickers in field hockey. A total of 432 local, national and international adult field hockey players (242 males, 188 females) completed an online questionnaire to retrospectively determine the 3-month prevalence and severity of ankle, knee, hip and lower back injuries. Of this group, 140 self-identified as drag flickers and 292 as non-drag flickers. The results showed that drag flickers had significantly higher prevalence of hip (OR: 1.541; 95% CI: 1.014, 2.343) and lower back injury (OR: 1.564; 95% CI: 1.034, 2.365) compared to non-drag flickers. No significant differences were observed between drag flickers and non-drag flickers in injury prevalence at the ankle and knee. There were no significant between-group differences in injury severity scores. Overall, the prevalence of hip and lower back injuries was significantly higher in drag flickers compared to non-drag flickers. 相似文献
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S.V.Nageswara Rao S.Sitharama Iyengar C.E.Veni Madhavan 《Information processing & management》1985,21(5):433-442
A variety of data structures such as inverted file, multi-lists, quad tree, k-d tree, range tree, polygon tree, quintary tree, multidimensional tries, segment tree, doubly chained tree, the grid file, d-fold tree. super B-tree, Multiple Attribute Tree (MAT), etc. have been studied for multidimensional searching and related problems. Physical data base organization, which is an important application of multidimensional searching, is traditionally and mostly handled by employing inverted file. This study proposes MAT data structure for bibliographic file systems, by illustrating the superiority of MAT data structure over inverted file. Both the methods are compared in terms of preprocessing, storage and query costs. Worst-case complexity analysis of both the methods, for a partial match query, is carried out in two cases: (a) when directory resides in main memory, (b) when directory resides in secondary memory. In both cases, MAT data structure is shown to be more efficient than the inverted file method. Arguments are given to illustrate the superiority of MAT data structure in an average case also. An efficient adaptation of MAT data structure, that exploits the special features of MAT structure and bibliographic files, is proposed for bibliographic file systems. In this adaptation, suitable techniques for fixing and ranking of the attributes for MAT data structure are proposed. Conclusions and proposals for future research are presented. 相似文献
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Framing has become one of the most popular areas of research for scholars in communication and a wide variety of other disciplines, such as psychology, behavioral economics, political science, and sociology. Particularly in the communication discipline, however, ambiguities surrounding how we conceptualize and therefore operationalize framing have begun to overlap with other media effects models to a point that is dysfunctional. This article provides an in-depth examination of framing and positions the theory in the context of recent evolutions in media effects research. We begin by arguing for changes in how communication scholars approach framing as a theoretical construct. We urge scholars to abandon the general term “framing” altogether and instead distinguish between different types of framing. We also propose that, as a field, we refocus attention on the concept's original theoretical foundations and, more important, the potential empirical contributions that the concept can make to our field and our understanding of media effects. Finally, we discuss framing as a bridge between paradigms as we shift from an era of mass communication to one of echo chambers, tailored information and microtargeting in the new media environment. 相似文献
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The expression of chromosomal genes is regulated by posttranslational modification of both histone and nonhistone chromatin
proteins and ATP-dependent remodeling of chromatin. Dysfunction of the modification and remodeling machineries can lead to
several diseases, which include cancer, cardiac hypertrophy, and asthma. Many genetic diseases can also lead to malfunction
of the machinery. The enzymes responsible for chromatin organization are the new targets for therapeutics. Inhibitors and
activators of histone acetyltransferases and inhibitors of histone deacetylases may serve as new generation drugs. 相似文献
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Kalpana Mukunda Iyengar Howard L. Smith 《Educational Studies A Journal of the American Educational Studies Association》2016,52(2):95-118
Many children from diverse cultures experience disconnectedness between their home and school. As they attempt to reconcile the conflicts among their multiple worlds, they must negotiate their situatedness in a variety of contexts, i.e., home community versus school, and construct a multifaceted identity. Absent support from school, Asian Indian American adolescents engage in acts of cultural preservation (CP), which, in turn, support their scholastic achievement. This article explores the thematic content of a group of Asian Indian American children's creative writing generated for the Kahani Project—a culturally contextualized version of Writers’ Workshop. In their texts, the six adolescents discuss the importance of their cultural traditions as tools to contest the various micro-aggressions they experience in school. Data from this study argue for cultural inclusion, not only for those at risk, but also for those students who successfully navigate a mainstream curriculum. 相似文献