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61.
Book Reviews     
Serial Publications: Guidelines for Good Practice in Publishing Printed and Electronic Journals, 2nd edition, by Diane Brown, Elaine Stott and Anthony Watkinson Association of Learned and Professional Society Publishers 2003, £27 (members), £30 (non‐members), 108 pp., paperback. ISBN 0‐907341‐22‐5. Available from http://www.alpsp.org/pub3.htm The Case for Institutional Repositories: A SPARC Position Paper prepared by Raym Crow, SPARC Senior Consultant Scholarly Publishing and Academic Resources Coalition, Washington DC. Release 1.0, 2002. Available at: www.arl.org/sparc The Case for Institutional Repositories: A SPARC Position Paper prepared by Raym Crow, SPARC Senior Consultant Scholarly Publishing and Academic Resources Coalition, Washington, DC. Release 1.0, 2002. Available at: www.arl.org/sparc Internet Law: Text and Materials by Chris Reed Butterworths Tolley, 2000, £24.95, paperback. ISBN 0406981418 Intellectual Property Law by Lionel Bently and Brad Sherman Oxford University Press, Oxford, 2001, £32.99 (paperback), 1136 pp. ISBN 0‐19‐876343‐3 Clearing the Way: Copyright Clearance in UK Libraries by Elizabeth Gadd LISU Occasional Paper no. 31, Library & Information Statistics Unit (LISU), Department of Information Science, Loughborough University. ISBN 1 901786 51 X Electronic Journals and User Behaviour: Learning for the Future from the SuperJournal Project by David Pullinger and Christine Baldwin Deedot Press, 2002, £14.95. ISBN 0‐954‐2924‐0‐5 Electronic Ecology: A Case Study of Electronic Journals in Context by Karla L. Hahn Association of Research Libraries, 79 pp., 2001, $45. ISBN 0‐918006‐46‐1 The Transition from Paper: Where Are We Going and How Will We Get There edited by R. Stephen Berry and Anne Simon Moffat American Academy of Arts and Sciences, published online (2001): www.amacad.org/publications/trans.htm The Transition from Paper: Where Are We Going and How Will We Get There edited by R. Stephen Berry and Anne Simon Moffat American Academy of Arts and Sciences, published online (2001): www.amacad.org/publications/trans.htm E‐Serials, Publishers, Libraries, Users and Standards, 2nd edn, edited by Wayne Jones The Haworth Press Inc., 2003, 294 pp. paperback ISBN 0789012294  相似文献   
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A proof is a connected sequence of assertions that includes a set of accepted statements, forms of reasoning and modes of representing arguments. Assuming reasoning to be central to proving and aiming to develop knowledge about how teacher actions may promote students’ mathematical reasoning, we conduct design research where whole-class mathematical discussions triggered by exploratory tasks play a key role. We take mathematical reasoning as making justified inferences and we consider generalizing and justifying central reasoning processes. Regarding teacher actions, we consider inviting, informing/suggesting, supporting/guiding and challenging actions can be identified in whole-class discussions. This paper presents design principles for an intervention geared to tackle such reasoning processes and focuses on a whole-class discussion on a grade 7 lesson about linear equations and functions. Data analysis concerns teacher actions in relation to design principles and to the sought mathematical reasoning processes. The conclusions highlight teacher actions that lead students to generalize and justify. Generalizations may arise from a central challenging action or from several guiding actions. Regarding justifications, a main challenging action seems to be essential, while follow-up guiding actions may promote a further development of this reasoning process. Thus, this paper provides a set of design principles and a characterization of teacher actions which enhance students’ mathematical reasoning processes such as generalization and justification.  相似文献   
64.
The objective of this study is to identify the competencies required to achieve success in the transition from higher education to the labour market based on the perceptions of employers. This paper analyses the assessments made by a group of engineering company employers. An item-battery of 20 competencies was grouped into 3 dimensions by using factor analysis. Subsequently, respondents’ scores were also clustered into three groups and characterised through contingency tables. The competencies demanded by employers were grouped into business and finance, problem-solving and strategic planning. Significant differences were found between responses from employers working in medium and small companies, who placed more importance on competencies related to problem-solving and strategic planning, and employers in big companies, who were more concerned about the difficulties of finding well-trained graduates. The findings from this paper have important implications for research in the areas of higher education and organisations that usually employ graduate engineers.  相似文献   
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We analyse the internationalisation process in business schools as a response to the globalisation phenomena and argue that environmental pressures, isomorphic forces, the pool of internal resources and the alignment of the process with the institution’s general strategic plan are the main determinants of a successful internationalisation process. These determinants, two external and two internal, find support in different theoretical frameworks such as contingency, isomorphism, resource-based view and strategic management theories. We use these theoretical approaches to discuss four propositions that explain the implementation of an appropriate internationalisation process for a business school. This paper contributes to the literature concerned with the internationalisation processes in higher education institutions highlighting the main factors that should be taken into account by school deans, university provosts, university boards and educational policymakers in guiding internationalisation process at institutional and national/sector levels.  相似文献   
66.
Teens' own thoughts on fostering safe sexual practice are important perspectives in promoting adolescent sexual health yet are relatively absent in the literature. This focus group study explored teens' perceptions about the supports and challenges that exist as teens strive to engage in healthy sexual practices. Seventy-five teens participated in 11 focus groups using a semi-structured interview guide. School-based health centers provided the setting and facilitated sample recruitment. Focus groups were audiorecorded and transcribed verbatim. Data were analyzed using the focus group guide as a template and typologies, or clusters of concepts, were extracted to establish teen perceptions of the factors that support and challenge their ability to engage in safe sexual practices. The socio-ecological model provided the framework to identify these factors within the individual, family/parent, relational (peer/partner), community, or societal spheres of influence. Results discussed the importance of parents, the value of confidentiality, respect for teen decision-making, relationships skills, developmental aspects of the adolescent years, and social interpretations of gender. These findings revealed important considerations as adults develop policies, messages, and programs designed to promote safe sexual behavior in teens.  相似文献   
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This article accounts for an experience of digital storytelling workshops with indigenous adolescents in Chile, and proposes a theoretical and methodological approach to analyze digital creations with a dialogic and ethnographic point of view. Based on this, it discusses the possibilities of digital media production as a strategy for the self-expression of children and adolescents, particularly immersed in unequal and ethnically diverse educational contexts. The specific case of two Mapuche girls reveals complex ways of organizing and positioning their voices, where ‘girl power’ and ‘post-girl power’ discourses are relevant, but not so their ethnicity. The results show that television, with its main audiovisual genres, styles and stereotypes, appears clearly on the teenagers’ creations, while the absence of Mapuche signs along the creation process and also into the digital stories seems to be related with two important features of the Chilean educational system: ethnic inequalities and its fierce attachment to neoliberalism.  相似文献   
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In the first part of the paper we discuss the pattern of research in microelectronics, illustrating the reasons why, in order to achieve distinguished scientific performance, universities need to collaborate with industry, and in particular academic researchers need to interact with industrial ones by face-to-face knowledge exchanges. In the second part, using patent data integrated with information collected through interviews, we measure the extent and intensity of the ties of academic with industrial researchers, and apply social network analysis to reconstruct the network of collaborations. The picture that emerges (from this Italian case) is fully consistent with the specific research pattern. Collaboration is based on teams of researchers from the two spheres, and strong connections are associated with high scientific performance. Moreover, border-crossing collaborations tend to be driven by cognitive proximity and personal relationships.  相似文献   
69.
感光度详解     
与光圈和快门一样,感光度也是曝光控制系统的一个重要方面。因此,我们将在这里对它作一次全面,深入的讲解。  相似文献   
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