排序方式： 共有23条查询结果，搜索用时 15 毫秒
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Vandermoere F Blanchemanche S Bieberstein A Marette S Roosen J 《Public understanding of science (Bristol, England)》2011,20(2):195-206
In spite of great expectations about the potential of nanotechnology, this study shows that people are rather ambiguous and pessimistic about nanotechnology applications in the food domain. Our findings are drawn from a survey of public perceptions about nanotechnology food and nanotechnology food packaging (N = 752). Multinomial logistic regression analyses further reveal that knowledge about food risks and nanotechnology significantly influences people's views about nanotechnology food packaging. However, knowledge variables were unrelated to support for nanofood, suggesting that an increase in people's knowledge might not be sufficient to bridge the gap between the excitement some business leaders in the food sector have and the restraint of the public. Additionally, opposition to nanofood was not related to the use of heuristics but to trust in governmental agencies. Furthermore, the results indicate that public perceptions of nanoscience in the food domain significantly relate to views on science, technology, and nature. 相似文献
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Monnery Sandrine Seigneuric Alix Zagar Daniel Robichon Fabrice 《Reading and writing》2002,15(5-6):589-612
Williams syndrome (WS) is a rareneuro-developmental disorder characterised byspared language in the face of serious deficitsin nonlinguistic cognitive abilities. Weconducted a study on ten WS individuals inwhich gender agreement and gender assignmentwere assessed by means of two tasks: gendercategorisation and gender concord. Subjectsperformed gender categorisation to real nounswhose gender was regular or exceptional giventheir ending, and to invented nouns which werecomposed of nonword or word stems and realword-endings. The same material was used in thegender concord task in which subjects had tomatch the items with the appropriate form ofthe article and the adjective carrying genderagreement. In the gender categorisation of realwords, WS were lower than controls but bothgroups demonstrated a similar sensitivity togender-ending regularities. In the gendercategorisation of nonwords, the results showeda clear dissociation. The WS subjects producedmore ending-consistent responses than thecontrols. Contrary to the controls, WS reliedheavily on the gender clue provided by theending even when the gender of the word evokedby the stem of the invented word was opposed tothat evoked by the ending. Participants with WSwere not influenced by the specific word evokedby the stem of the invented word. In the secondtask (concord task), the WS subjects performed well although lower than thecontrols. We concluded that the WS people werenot impaired in gender agreement which relieson syntactic rules and/or on the extraction ofregularities but experienced difficulties inretrieving lexical instances. 相似文献
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Hans Bonnet Daan Hoogwater Johan Spaans Caroline Wehrmann 《European Journal of Engineering Education》2006,31(2):155-167
Sustainability, enhancement of personal skills, social aspects of technology, management and entrepreneurship are of increasing concern for engineers and therefore for engineering education. In 1996 at Delft University of Technology this led to the introduction of a subject on sustainable entrepreneurship and technology in the course programmes of Chemical Engineering and Materials Sciences Engineering. This subject combines lectures, project work in which a business plan is written, sustainability and presentation training. This paper shows that it has been possible to combine entrepreneurship, sustainability and project education successfully in a subject for undergraduate engineering students and describes background, assumptions, outline, results and recent adjustments of this subject. It includes a discussion on how to integrate sustainability and entrepreneurship in terms of triple P (People, Profit, Planet) and how to incorporate it pragmatically in the key elements of a business plan: (1) business idea, mission and strategy; (2) context, stakeholder and market analysis; (3) marketing; (4) production; (5) organisation and management; (6) finance and reporting. Attention is paid to results regarding the business plan, spin-off like start-ups and also to the learning results of both students and lecturers. It ends drawing some lessons derived from the subject’s results and the learning experiences of both students and lecturers. 相似文献
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Sandrine Turcotte 《Journal of Science Education and Technology》2012,21(6):808-825
This article describes in detail a conversation analysis of conceptual change in a computer-supported collaborative learning environment. Conceptual change is an essential learning process in science education that has yet to be fully understood. While many models and theories have been developed over the last three decades, empirical data to support them are scarce. The present paper aims to provide such evidence. To this end, the article first reviews seven proposed models of conceptual change before it recalls the main ideas behind the two different positions on conceptual change, the pieces (diSessa 2008) versus coherence (Vosniadou et al. 2008) positions. Then, the article presents and discusses how a close discourse analysis of asynchronous collaborative conversations between grade 5 and 6 students on buoyancy and relative density provides further empirical evidence of the knowledge in pieces position. 相似文献
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Guillaume Martinent Jean-Claude Decret Emma Guillet-Descas Sandrine Isoard-Gautheur 《Journal of sports sciences》2013,31(17):1648-1658
AbstractUsing self-determination theory (SDT) (Deci, E.L., & Ryan, R.M. (1985). Intrinsic motivation and self-determination in human behavior. New York, NY: Plenum) as the theoretical framework, we conducted a longitudinal investigation of the temporal ordering between motivation and burnout among youth athletes in intensive training setting. Data were collected from 145 table tennis players in intensive training centres at three time points during a 2-month period characterised by a simultaneous increase in social, physical and psychological demands for these athletes. Structural equation modelling of cross-lagged panel models was used to test the hypotheses. Results showed significant paths leading from athlete burnout – especially sport devaluation and reduced sense of accomplishment – at time 1 to amotivation, intrinsic and extrinsic motivations at times 2 and 3. Only two significant paths leading from motivation (introjected regulation at time 1) to burnout (emotional/physical exhaustion at time 2 and reduced sense of accomplishment at time 3) were identified. Overall, our results suggest that athlete burnout predicts motivation over time but motivation did not predict athlete burnout over time. Results are discussed in terms of current research findings on SDT. 相似文献
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Gabrielle Bonnet 《Prospects》2008,38(3):325-344
It is easier to collect data on teachers’ qualifications, experience, or training than to get a precise idea of their command
of subject matter or their classroom behaviour. However, research consistently shows that “class effect” (the impact on a
student of being in one class rather than another) on pupil performance is relatively high, especially in Africa, whereas
the impact of qualifications, experience, or training on pupil learning is generally low. The purpose of this paper is to
compare teacher academic qualifications and professional training on the one hand, with teacher test scores and behaviour
on the other, showing the weak links between the former and the latter. What also emerges is the importance of certain external
management-related factors such as the vastly reduced hours of effective learning time due to high rates of absenteeism and
delayed term starts. Despite the importance of what really happens in the classroom, it remains difficult to measure the classroom
dynamic reliably and accurately.
Gabrielle Bonnet (France) Associate Expert in the Section for Teacher Education, Division of Higher Education, at UNESCO, she is currently devoting most of her time to the UNESCO Teacher Training Initiative for Sub-Saharan Africa (TTISSA). Previously she managed an in-service project on scientific and learning resources for physics teachers in France, teaching in Senegal and in France in particular at the Ecole Normale Supérieure de Lyon and at Orsay University. She holds a Doctorate in Theoretical Physics, and Master’s Degrees in Maths, Physics, Education and Didactics. 相似文献
| Gabrielle BonnetEmail: |
Gabrielle Bonnet (France) Associate Expert in the Section for Teacher Education, Division of Higher Education, at UNESCO, she is currently devoting most of her time to the UNESCO Teacher Training Initiative for Sub-Saharan Africa (TTISSA). Previously she managed an in-service project on scientific and learning resources for physics teachers in France, teaching in Senegal and in France in particular at the Ecole Normale Supérieure de Lyon and at Orsay University. She holds a Doctorate in Theoretical Physics, and Master’s Degrees in Maths, Physics, Education and Didactics. 相似文献
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The aim of our paper is to analyse the process of collaboration between independent firms linked by a technological agreement in the energy field, with a specific focus on the degree of codification of inter-organisational rules. Considering the agreement as a collection of different types of more or less codified rules, we show that their degree of codification and some other characteristics have an impact on the process of inter-firm cooperation.The paper first provides an analytical framework defining the concept and the types of rules relevant for our purpose. A rule is conceived to solve a problem of allocation or creation of resources; it serves a main function which can be of a cognitive, incentive or coordination nature; it is ambivalent, i.e. it entails side functions in addition to the main one. Two theoretical propositions are then developed and largely confirmed by our empirical research results based on two detailed case studies in the emerging field of fuel cell (FC) technology. 相似文献