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Hanna Rydehell Hans Löfsten Anders Isaksson 《The Journal of High Technology Management Research》2018,29(2):161-171
To perform, new technology-based firms (NTBFs) need to develop value for customers that distinguish them from others in the market. Therefore, the development of novelty-oriented value propositions are important, and may be influenced by several factors. We argue that the propensity to become more novelty-oriented can be influenced by an internal drive to grow (growth orientation) and by external contributions (business networks). Hence, the purpose of this paper is to analyse how business networks and growth orientation effects on the novelty orientation of NTBF value propositions. Based on survey data from 401 NTBFs founded between 2013 and 2015, in the nascent start-up phase novelty-oriented value propositions of NTBFs positively relate to informal (management) networks, as well as founders' attitudes towards growth. Thus, such networks and attitudes from founders should be supported in the very early phases of start-up if novelty orientation is to be preferred as a performance determinant. 相似文献
174.
OBJECTIVE: This case study examined children's reports from an obscene phone call (i.e., a verbal sexual abuse). We investigated which type of information the children reported, the completeness and accuracy of the children's statements, and whether there were systematic patterns in terms of memory distortions and omissions. METHOD: The completeness and the accuracy of the children's statements were examined by matching 64 children's statements given during police interviews with a detailed documentation of each phone call, made by the perpetrator during the actual phone calls. RESULTS: All children remembered the phone call per se, but they were found to omit almost all of the sexual and sensitive information (perpetrator's questions and statements) and about 70% of the neutral information given by the perpetrator. However, the children were accurate in the information they did report. CONCLUSIONS: The fact that the children did remember more of the neutral information suggests that they actually remembered the sexual information as well, but that they chose not to report it. Results indicate that children who have been sexually abused may remember more than they report in an initial interview. One possible underlying reason is that children experience shame or embarrassment. 相似文献
175.
E. S. Tidningarnas Telegrambyrå Mats Knutson Jacob Sundberg Anki Gundhäll Professor Lars Gustafsson Alan Dershowitz Svante Nycander Bengt Johansson Magnus Eriksson Lotta Gustavson Marianne Gunnarsson Kristina Vallström Monique Wadsted Mary Ann Glendon Professor Gerhard Radnitzky Jescheck Anders Victorin Johan åsard Lars Isaksson 《Minerva》1991,29(3):321-385
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In this paper, different perspectives on the role of the teacher in a classroom equipped with personal digital assistants (PDAs) are presented. We report on four classroom studies conducted in two countries, Norway and the USA. The overall aim is to understand the use of new tools in different contexts. The key question that we explore concerns the teachers’ pedagogical use of the new tool and why certain tools are adopted and others are not. In one case, the activities simulated the affordances and constraints of the tools used prior to the PDA. In the other case, the activities harnessed the affordances and constraints offered by the successor tool, the PDA. We raise the question as to why these tools were used in two different ways. We analyse our findings in terms of sociocultural theory and concepts of human–computer interaction. Finally, we summarize our results and discuss some educational implications. 相似文献
179.
Simulated Sustainable Societies: Students’ Reflections on Creating Future Cities in Computer Games 总被引:1,自引:1,他引:0
The empirical study, in this article, involved 42 students (ages 14–15), who used the urban simulation computer game SimCity
4 to create models of sustainable future cities. The aim was to explore in what ways the simulated “real” worlds provided
by this game could be a potential facilitator for science learning contexts. The topic investigated is in what way interactions
in this gaming environment, and reflections about these interactions, can form a context where the students deal with real
world problems, and where they can contextualise and apply their scientific knowledge. Focus group interviews and video recordings
were used to gather data on students’ reflections on their cities, and on sustainable development. The findings indicate that
SimCity 4 actually contributes to creating meaningful educational situations in science classrooms, and that computer games
can constitute an important artefact that may facilitate contextualisation and make students’ use of science concepts and
theories more explicit. 相似文献
180.
Peter L. Kristensen Line G. Olesen Mathias Ried-larsen Anders Grøntved Niels Wedderkopp Karsten Froberg 《Journal of sports sciences》2013,31(2):188-195
Abstract A large proportion of a child's day is spent at school interacting with certain physical surroundings, teachers, and school friends. Thus, schools could have a marked impact on establishing physical activity habits. The aim of the present study was to assess between-school variation in physical activity, aerobic fitness, and organized sports participation. Altogether, we tested 1766 nine- and fifteen-year-old children attending 242 school classes at 35 different schools in Denmark in 1997–2003. The intra-class correlation coefficient (ICC) for objectively assessed physical activity ranged between 0.06 and 0.18 depending on the dimension of physical activity and the time considered (i.e. school time vs. leisure time). For aerobic fitness, an ICC of 0.10 was observed, whereas that for organized sports participation ranged between 0.01 and 0.10 depending on the age group. Studying between-school variation in physical activity provides information about the extent to which children adjust their physical activity habits according to the social and environmental circumstances that they share, and helps to plan future school-based physical activity studies, especially in terms of sample size and power calculation. 相似文献