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231.
Marcus Wagner 《Research Policy》2011,40(9):1217-1225
Innovation in high technology industries poses considerable challenges, frequently forcing firms to consider using acquisitions as a means of sourcing technology. This paper investigates such behaviour in a major high technology sector, namely the semiconductor industry. The paper focuses on differential effects of technology-related versus nontechnological acquisitions on exploratory and exploitative research and innovation. Most importantly, it confirms the important role of technology-related acquisitions for exploratory innovation. 相似文献
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Klaus Wedell 《British Journal of Special Education》2010,37(4):209-209
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Klaus‐E. Jaritz 《Environmental Education Research》1996,2(1):51-62
This paper consists of two parts, the first one sets out the place of the case studies in the context of environmental education in German colleges and universities [1]. The case studies reported here should initiate inter‐university discussions on the objectives of, and the ways to incorporate, environmental education into the training for the pedagogical professions at German academic institutions. The second part tries to deduce generalisable aspects from the studies carried out in order to make some provisional conclusions about environmental education in pre‐service teacher education and the necessary research work in this field. Here use is made of the EEITE characteristics which Country Project Representatives agreed during their Summer Conference in 1993 as criteria to analyse the outcomes of the case studies [2]. 相似文献
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Uwe Engel Elisabeth Nordlohne Klaus Hurrelmann Birgit Holler 《European Journal of Psychology of Education - EJPE》1987,2(4):365-374
In modern, competitive societies the social organisation of «youth» implies both the chance and risk of (intergenerational) vertical social mobility. It is suggested that it is precisely this basic feature that to a considerable extent gives rise to substance use. In particular the paper aims at analysing the impact of the risk of educational downward mobility as well as some related characteristics. Using LISREL VI, it is shown that this type of educational career pattern, actual or anticipated, substantially contributes to the consumption of legal drugs. Weight is given to an extended analysis of the mode of action involved in the relationship between substance use and the career pattern as well as associated characteristics, respectively. As far as home is concerned, social conflict and associated feelings on the side of the adolescents turn out to be a major ‘mechanism’ through which the observable impact of educational downward mobility can be traced back. Integration into both the cultural system of «legalized» drug use and subcultural contexts as provided by social cliques is a further condition that strongly influences substance use among adolescents. 相似文献