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1.
Kurt Rothermel 《Informatik - Forschung und Entwicklung》2001,16(4):177-178
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First, I am pleased to note the broad area of agreement amongthe four of us. We concur fully that polls are useful, powerful,and play an important role in contemporary politics. My threeresponders also acknowledge the significance of alternativeways in which citizens can express their opinions and, furthermore,that public opinion is more diverse and nuanced than any dichotomoussplit between the pros and cons on a particular issue recordedat a particular time might suggest. Sir Robert chides me explicitly, and Gary Langer by implication,for failing 相似文献
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Analysis of the urban/rural broadband divide in Canada: Using GIS in planning terrestrial wireless deployment 总被引:3,自引:0,他引:3
M. Sawada Daniel Cossette Barry Wellar Tolga Kurt 《Government Information Quarterly》2006,23(3-4):454
Millions of Canadians residing in Canada's northern, isolated, rural, and remote communities do not have broadband Internet access. This situation has led to a national “broadband divide.” That is, the deployment of wireline broadband is very limited in Canada's northern, isolated, rural, and remote areas because of the significant expense of installation and maintenance of the wired infrastructure needed to reach dwellings in these locations.Terrestrial broadband wireless technology, on the other hand, does not entail the same kind of physical infrastructure. As a result, there are dramatic changes in how spatial considerations affect the provision of broadband Internet services (BIS) to areas beyond the urban zone. In particular, the spatial question is now focused on assessing the capacity for different technological solutions to reach profitable population bases, and brings to the forefront organizations that are developing non-line-of-sight (NLOS) technologies that would permit wireless Internet access over much greater distances than current solutions.We begin this paper by establishing the importance of broadband connectivity to Canada's northern, isolated, rural, and remote communities. This discussion comments on the role of the Government of Canada in the provision of broadband connectivity to residents of these communities, and outlines the current regulatory issues that govern wireless services and policy formulation.The second part of the paper illustrates the use of geographic information system (GIS) approaches in the study of wireless broadband planning and deployment. Case study findings suggest that GIS applications can make a significant contribution to the analysis of wireless deployment planning, to the understanding of the relationships between wireless signal sources and consumers, and to the spatial configuration of terrestrial wireless broadband networks. We conclude the paper by discussing how the GIS approach employed could be used to inform the public policy process with regard to increasing access to broadband Internet services in all regions of the country, and thereby providing the opportunity for all Canadians, regardless of location, to fully participate in the Information Society. 相似文献
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Serhat Kurt 《Learned Publishing》2018,31(2):141-147
This study examines the reasons why authors publish in ‘predatory’ OA journals. In total, 50 journals were randomly selected from Beall's list of ‘predatory’ journals. Different methods, including WHOIS tracking, were utilized to query basic information about the selected journals, including location and registrant. Then, 300 articles were randomly selected from within selected journals in various scientific fields. Authors of the selected articles were contacted and sent survey questions to complete. A grounded theory qualitative methods approach was used for data collection and analysis. The results demonstrated that most of these journals were located in the developing world, usually Asia or Africa, even when they claimed they were in the USA or UK. Furthermore, four themes emerged after authors’ survey responses were coded, categorized, and sub‐categorized. The themes were: social identity threat, unawareness, high pressure, and lack of research proficiency. Scholars in the developing world felt that reputable Western journals might be prejudiced against them and sometimes felt more comfortable publishing in journals from the developing world. Other scholars were unaware of the reputation of the journals in which they published and would not have selected them had they known. However, some scholars said they would still have published in the same journals if their institution recognised them. The pressure to ‘publish or perish’ was another factor influencing many scholars’ decisions to publish in these fast‐turnaround journals. In some cases, researchers did not have adequate guidance and felt they lacked the knowledge of research to submit to a more reputable journal. More needs to be done by institutions and reputable journals to make researchers aware of the problem of ‘predatory’ journals. 相似文献
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Lennart Fischer Joseph Baker Rebecca Rienhoff Bernd Strauß Judith Tirp Dirk Büsch 《Journal of sports sciences》2016,34(17):1637-1642
There is little research investigating the maintenance of perceptual-cognitive expertise in general and even less comparing coaches of different ages. The aim of this study was to test for perceptual-cognitive differences between age groups, licence levels, and their interaction. This study investigated differences in skilled performance between young and middle-aged coaches of three different skill levels. Participants performed an accuracy-oriented pattern recall (mean distance in pixel) and a time-oriented flicker test (mean detection time in ms). There were some significant differences between age groups and between skill groups for both tests, but no interactions. For the pattern recall test, the effect sizes were larger for skill level differences, while for the flicker test effects were larger for ageing. These results suggest coaches are able to maintain accuracy skills better than reaction timed tasks. This is in line with findings on speeded performance in general populations, which show declines with age. Moreover, results also support findings on perceptual expertise in skills where accuracy was important. 相似文献
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Fischer Peter Michael Mandl Heinz 《European Journal of Psychology of Education - EJPE》1988,3(2):217-233
The present article gives an outline of the state of art in computer assisted intervention by learning-concomitant differential feedback. Based on the spectrum of possible meanings and interpretations given to the concepts ‘interaction’ and ‘interactive’ this concept is elaborated and illustrated by prototypical theoretical approaches. Based on our own empirical findings arguments are given showing that sophisticated audiovisual interactive new technologies can properly be used even on the small machines available in schools if the content materials and the flow of control given to the learner are carefully designed and based on principles of cognitive science.
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