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Advances in the publishing world have emerged new models of digital library development. Open access publishing modes are expanding their presence and realize the digital library idea in various means. While user-centered evaluation of digital libraries has drawn considerable attention during the last years, these systems are currently viewed from the publishing, economic and scientometric perspectives. The present study explores the concepts of usefulness and usability in the evaluation of an e-print archive. The results demonstrate that several attributes of usefulness, such as the level and the relevance of information, and usability, such as easiness of use and learnability, as well as functionalities commonly met in these systems, affect user interaction and satisfaction. 相似文献
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A long stream of academic literature has established that public funding towards research and development matters for economic growth because it relates to increases in innovation, productivity and the like. The impact of public funding on the creation of new firms has received less attention in this literature despite theoretical constructs that support such association. In the present paper we study whether indeed there is a relationship between public research funds and local firm births in the context of the U.S. biotechnology industry. In doing so, we introduce a number of changes that strengthen the robustness of our findings when compared with existing literature. These changes include a direct measure of research expenditures and a considerably lengthier longitudinal dataset which allows us to capture a structural relationship and not a chance event. We empirically demonstrate that increases in the level of research funding from the National Institutes of Health towards biotechnology associate with increases in the number of biotechnology firm births at the Metropolitan Statistical Area level. Further, we reveal that public funds towards established firms associate with local firm births considerably more strongly when compared with funds towards universities and research institutes/hospitals. We conclude the paper with academic and policy implications of the present work that highlight the complexity of factors that underlie the creation of local firms in high technology industries. 相似文献
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Tsoni Rozita Panagiotakopoulos Christos Τ. Verykios Vassilios S. 《Education and Information Technologies》2022,27(3):3529-3565
Education and Information Technologies - This paper proposes a multilayered methodology for analyzing distance learning students’ data to gain insight into the learning progress of the... 相似文献
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In this article, we present insights from an ethnographic research that investigated the concept of citizenship in primary schools in Greece. We explored children’s experiences of citizenship in school approaching citizenship as a set of habits that prescribe what is considered ‘legitimate’ in the public sphere. We focused on structures and agents inside and outside the school classroom and the way they may interfere with pedagogical practices and relationships. This work reveals a vicious circle of asymmetrical relationships and hierarchical structures between the society and the school that entrap teachers in assessment-oriented pedagogical practices. We argue that the emergent loyalty of the educational system to traditional pedagogical approaches premised on competition fosters pupils’ incomprehension of the importance of social solidarity. It also contributes to their withdrawal from the public sphere, undermining the transformative potential of education. With the use of a diverse sample, we highlight the shortcomings of the integrated curriculum introduced in 2001, in successfully promoting critical thinking and participatory learner-centred pedagogy, and we discuss the implications for the transformative potential of education arising from the adherence to the implementation of European education policy that is discerned in the text of the newly introduced Curriculum of the ‘New School’. 相似文献
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Nicolas Babault Maxime Poisson Guiseppe Cimadoro Carole Cometti Christos Païzis 《European Journal of Sport Science》2018,18(9):1199-1207
Nowadays, fixed gear competitions on outdoor circuits such as criteriums are regularly organized worldwide. To date, no study has investigated this alternative form of cycling. The purpose of the present study was to examine fixed gear performance indexes and to characterize physiological determinants of fixed gear cyclists. This study was carried out in two parts. Part 1 (n?=?36) examined correlations between performance indexes obtained during a real fixed gear criterium (time trial, fastest laps, averaged lap time during races, fatigue indexes) and during a sprint track time trial. Part 2 (n?=?9) examined correlations between the recorded performance indexes and some aerobic and anaerobic performance outputs (VO2max, maximal aerobic power, knee extensor and knee flexor maximal voluntary torque, vertical jump height and performance during a modified Wingate test). Results from Part 1 indicated significant correlations between fixed gear final performance (i.e. average lap time during the finals) and single lap time (time trial, fastest lap during races and sprint track time trial). In addition, results from Part 2 revealed significant correlations between fixed gear performance and aerobic indicators (VO2max and maximal aerobic power). However, no significant relationship was obtained between fixed gear cycling and anaerobic qualities such as strength. Similarly to traditional cycling disciplines, we concluded that fixed gear cycling is mainly limited by aerobic capacity, particularly criteriums final performance. However, specific skills including technical competency should be considered. 相似文献