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51.
The present study integrates two concepts: the notion of opinionleadership, as conceptualized and measured by the Strength ofPersonality (SP) scale, and the agenda-setting process. Thus,we suggest and test a two-step flow model in which certain individuals,the influentials, identify emerging issues in the mass mediaand then diffuse these issues to others via their personal networks.Based on a series of six national surveys conducted in Germany(1990) measuring issue salience and various personal characteristics,this study highlights the role certain individuals play in theemergence of the public agenda. The degree to which individualscan be influenced, measured by the SP scale, is found to bea powerful predictor of the formation of personal agendas, withhigh SP individuals differing from others in their identificationof emerging public issues. However, the analysis reveals thecomplexity of these relationships: they depend on the obtrusivenessof the issue, and they vary over time and location (East orWest Germany). The findings encourage the empirical pursuitof the suggested two-step flow model as appliedto the agenda-setting process. 相似文献
52.
Gabriel Jacobs & Catherine Rodgers 《British journal of educational technology : journal of the Council for Educational Technology》1997,28(4):292-304
This paper analyses the psychological, technical, administrative, organisational, institutional and general pedagogical problems encountered during Phase 1 (the trial phase) of a trans-European distance-learning project. Using basic-rate ISDN videoconferencing for remote interactive tutorials, Phase 1 involved the University of Wales Swansea and HEC Liège (Belgium), and provided practice in business English for Belgian students and business French for UK students of French and Business. The difficulties which have arisen during the phase have been many and varied, and not all could have been easily predicted from a review of the research literature. Solutions to some of them are suggested. 相似文献
53.
Two studies were carried out during university workshops, and analyzed the effects of resource interdependence on student‐student interactions, and the impact of these interactions on performance. Students worked cooperatively, either on complementary information (positive resource interdependence) or on identical information (resource independence). In Study 1, analysis of videotaped interactions revealed that working on complementary information produced more positive interactions; however this was not sufficient to prevent students who had no direct access to the information from being disadvantaged, because of informational dependence. In Study 2, with simpler texts allowing better information transmission, performance was favored when students worked on complementary information. Moreover, working on identical information not only enhanced confrontations of point of views, it also elicited competence threat. Further analysis revealed that competence threat mediated resource interdependence effect on performance. Discussion provides insights into the conditions in which different cooperative methods can benefit learning. 相似文献
54.
Extending Previous cG×I Findings on 5‐HTTLPR's Moderation of Intervention Effects on Adolescent Substance Misuse Initiation
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Gabriel L. Schlomer H. Harrington Cleveland Mark E. Feinberg Pedro S. A. Wolf Mark T. Greenberg Richard L. Spoth Cleve Redmond Eric P. Tricou David J. Vandenbergh 《Child development》2017,88(6):2001-2012
This study addresses replication in candidate gene × environment interaction (cG×E) research by investigating if the key findings from Brody, Beach, Philibert, Chen, and Murry (2009) can be detected using data (N = 1,809) from the PROSPER substance use preventive intervention delivery system. Parallel to Brody et al., this study tested the hypotheses that substance misuse initiation would increase faster from age 11 to age 14 and be higher at age 14 among: (a) 5‐HTTLPR short carrier adolescents versus long homozygotes, (b) control versus intervention adolescents, and (c) 5‐HTTLPR short carriers in the control condition versus all other participants. The hypotheses were generally supported and results were consistent with Brody et al.'s cG×I finding. Results are discussed in light of replication issues in cG×E research and implications for intervention. 相似文献
55.
Gabriel Diaz Maggioli 《通化师范学院学报》2007,(9):39-40
It is ironical that developments in the field of education call for teachers to differentiate instruction as a pre-requisite for effective learning,while teacher education and continuing professional development adhere to a one-size-fits-all philos- ophy. In general,professional development initiatives are part of'reform packages'with decisions about what,when,and 相似文献
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57.
Tom Gabriel 《International Journal of Educational Development》1983,3(3):305-311
Current development education in the United Kingdom usually offers participants from developing countries studies of what development is or should be. These programmes are well suited to the needs of higher-level planners or policy researchers. They contrast markedly with the urgent need for the knowledge of and skills in how to undertake planned economic and social changes. This paper suggests a possible route towards a practical, professional training for middle-and lower-level personnel engaged in managing development and extension services. Briefly, the paper notes the lack of educational programmes aimed at practical training and middle-level staff in Britain; and the role of education in the process of development. Current difficulties for locating these programmes in the developing countries themselves are discussed, and the outline for a suitably practical programme, initially based in Britain, is proposed. 相似文献
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59.
Prof. Dr. Ulrich Trautwein Prof. Dr. Gabriel Nagy Prof. Dr. Kai Maaz 《Zeitschrift für Erziehungswissenschaft》2011,14(3):445-463
Efforts to break the link between the school type attended and the qualification awarded are seen an important step in the modernization of Germany??s tracked secondary school system. However, it remains disputed whether these efforts have reduced social disparities or in fact increased them. This study examined the transition from lower secondary education in academic- and intermediate-track schools to upper secondary education in general and vocational gymnasium schools in the state of Baden-Württemberg. When indicators of parental social background and school-leaving qualifications were controlled, the opening of upper secondary education was found to be associated with a decrease in the social selectivity of upper secondary education for intermediate-track students. At the same time, for those intermediate-track students who were entitled to enter upper secondary education, social background had predictive effects on the transition decision; however, the overall size of these effects was low. 相似文献
60.
José Antonio García-Pérez Salvador Llana Belloch Ángel Gabriel Lucas-Cuevas Daniel Sánchez-Zuriaga 《Sports biomechanics / International Society of Biomechanics in Sports》2014,13(3):259-266
The effects of treadmill running on impact acceleration were examined together with the interaction between running surface and runner's fatigue state. Twenty recreational runners (11 men and 9 women) ran overground and on a treadmill (at 4.0 m/s) before and after a fatigue protocol consisting of a 30-minute run at 85% of individual maximal aerobic speed. Impact accelerations were analysed using two lightweight capacitive uniaxial accelerometers. A two-way repeated-measure analysis of variance showed that, in the pre-fatigue condition, the treadmill running decreased head and tibial peak impact accelerations and impact rates (the rate of change of acceleration), but no significant difference was observed between the two surfaces in shock attenuation. There was no significant difference in acceleration parameters between the two surfaces in the post-fatigue condition. There was a significant interaction between surface (treadmill and overground) and fatigue state (pre-fatigue and post-fatigue). In particular, fatigue when running overground decreased impact acceleration severity, but it had no such effect when running on the treadmill. The effects of treadmill running and the interaction need to be taken into account when interpreting the results of studies that use a treadmill in their experimental protocols, and when prescribing physical exercise. 相似文献