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71.
This paper explores recent trends in the size of scientific teams and in institutional collaborations. The data derive from 2.4 million scientific papers written in 110 top U.S. research universities over the period 1981-1999. The top 110 account for a large share of published basic research conducted in the U.S. during this time.We measure team size by the number of authors on a scientific paper. Using this measure we find that team size increases by 50% over the 19-year period. We supplement team size with measures of domestic and foreign institutional collaborations, which capture the geographic dispersion of team workers. The time series evidence suggests that the trend towards more geographically dispersed scientific teams accelerates beginning with papers published at the start of the 1990s. This acceleration suggests a sharp decline in the cost of collaboration. Our hypothesis is that the decline is due to the deployment of the National Science Foundation's NSFNET and its connection to networks in Europe and Japan after 1987.Using a panel of top university departments we also find that private universities and departments whose scientists have earned prestigious awards participate in larger teams, as do departments that have larger amounts of federal funding. Placement of former graduate students is a key determinant of institutional collaborations, especially collaborations with firms and with foreign scientific institutions. Finally, the evidence suggests that scientific output and influence increase with team size and that influence rises along with institutional collaborations. Since increasing team size implies an increase in the division of labor, these results suggest that scientific productivity increases with the scientific division of labor. 相似文献
72.
ABSTRACTA case study demonstrating how an online narrative featuring the adventures of a cuddly toy penguin, Pablo Penguin (@uoppenguin on Twitter) has been introduced at the University of Portsmouth Library to build trust and engagement between university students and library services and facilities. Evidence for the benefits of anthropomorphic brand mascots and best practice for their design and use to enhance the library brand, emotionally engage, build trust, lower barriers to service engagement, and mentor students from the perspective of a perpetual student are drawn from the marketing and psychological literature then illustrated in the case study. 相似文献
73.
The aim of this paper is to provide an introduction to higher mathematical concepts and techniques as applied to real-world problems. An interesting case study is the 200-mile limit for fisheries presented in Wan (1989, Mathematical Models and their Analysis (New York: Harper and Row)). It is commented upon, re-examined and solved in a different manner inspired by Turing's (1952, Philosophical Transactions of the Royal Society London , B237 , 37-72) paper as a suitable classroom example for undergraduate students taking a first course on mathematical modelling. Emphasis is made not only on the mathematics--always kept as elementary as possible--but also on interpretations, explanations and translation into plain language of the mathematical expressions and results. 相似文献
74.
M. Armenteros Shu-Sheng Liaw M. J. Sánchez-Franco M. Fernández R. Arteaga Sánchez 《Education and Information Technologies》2017,22(3):841-872
The aim of our study is to improve the understanding of the different behavioral intentions of referees and assistant referees in different FIFA (International Federation of Association Football) confederations towards Multimedia Teaching Materials as learning tools. To achieve this goal, we carry out a survey of 214 elite referees and assistant referees and we propose a research model with the variables perceived usefulness, perceived ease of use, perceived enjoyment, perceived self-efficacy, multimedia instruction, previous experience with technology and self-paced learning. These variables were taken from previous educational technology research. Among these models we mainly take into account the Technology Acceptance Model, the Motivational Model and the Social Cognitive Theory. To assess the relationships between the constructs, we develop an analysis based on a Structural Equation Modeling (SEM), specifically Partial Least Squares (PLS). The results of this study confirm that referees and assistant referees are willing to use Multimedia Teaching Materials to assist them in their learning activities as long as they perceive the materials to be useful, enjoyable and easy to use and whenever the course contents are multimedia. 相似文献
75.
Alison Cook-Sather Joel Alden Schlosser Abigail Sweeney Laurel M. Peterson Kimberly Wright Cassidy Ana Colón García 《International Journal for Academic Development》2018,23(2):123-134
Academic development that supports the enactment of positive psychology practices through student–faculty pedagogical partnership can increase faculty confidence and capacity in their first year in a new institution. When student partners practice affirmation and encouragement of strengths-based growth, processes of faculty acclimation and self-authoring can be accelerated. This article presents a student–faculty pedagogical partnership program and positive psychology practices that focus on faculty strengths and capacities as the foundation for reinforcing and revising existing pedagogical strategies and for sustaining energy for continued development. It combines collaborative autoethnographic and comparative case study approaches to investigate the pedagogical benefits of these practices. 相似文献
76.
Brown Scott W. Boyer Mark A. Mayall Hayley J. Johnson Paula R. Meng Lin Butler Michael J. Weir Kimberly Florea Natalie Hernandez Magnolia Reis Sally 《Instructional Science》2003,31(4-5):255-276
The GlobalEd Project employs a technology richenvironment for high school students who wishto participate in a simulation of internationalrelations and negotiation. A simulationconsists of negotiations on a variety ofinternational policy issues conducted bystudents from 10–15 schools through anInternet-based interface. This study reportsthe findings of 234 high school participants'changes in academic and technologyself-efficacy skills, as well as knowledge,attitudes and behaviors related to academicpreparation and performance, the use ofeducational technology, and associated outcomesfrom participating in a simulation ofinternational relations. The results arediscussed in terms of the current literature onself-efficacy and gender differences incognitive process. 相似文献
77.
Through a grant from the Department of Health and Human Services, National-Louis University delivered a leadership training program to Head Start personnel in the Chicago Metropolitan Area. The model, which was grounded in adult learning theory, encouraged a facilitative role for the teaching faculty, active decision-making on the part of the participants, collegial support, and linkages between theory and practice. A social systems approach was used to promote the idea of leaders as change agents.The effectiveness of the training model was assessed through the use of both quantitative and qualitative methods. Results indicated that the training had a positive effect on participants' level of perceived competence, the quality of teaching practices in their classrooms, and the organizational climate of their centers. Additionally, case study data documented feelings of increased self-confidence and self-efficacy on the part of participants. Outcomes suggest that this training model improved the expertise of Head Start directors and teachers and promoted substantive change and improvement in their centers.Some of these data were presented at the annual meeting of the American Educational Research Association, San Francisco, April 1992. 相似文献
78.
Beatriz García Fernández José Reyes Ruiz-Gallardo 《Journal of Science Education and Technology》2017,26(2):161-174
Are children competent producing anatomy cross-sections? To answer this question, we carried out a case study research aimed at testing graphic production skills in anatomy of nutrition. The graphics produced by 118 children in the final year of primary education were analysed. The children had to draw a diagram of a human cross section, integrating knowledge of anatomy acquired from longitudinal sections. The results show that they have very limited skills in producing these graphics judging by the dimensions (scale, shape, organs represented and its organization inside the section) and their conception of human anatomy at thoracic level (location of the organs, elements in the spaces between them and connections between organs). The results also indicate that the only exposure to cross-sections in daily life is not enough by itself to draw them correctly, so this type of graphic production should be addressed from the earliest stages of education, since it contributes to the development of visual literacy, and this is a crucial skill when it comes to learning science concepts and developing scientific literacy. 相似文献
79.
Yasuhiro Kotera Vicky Cockerill Pauline Green Lucy Hutchinson Paula Shaw Nicholas Bowskill 《Distance Education》2019,40(2):170-186
Online learning is crucial to success for higher education institutions. Whilst the existing literature predominantly focused on its economic advantages, we focused on its inclusivity. At an online learning unit of a UK university, the number of students with disabilities (SWD) is three times higher than the national average. Having a degree makes significant financial and psychological differences in the lives of SWD. Though recent literature focused on inclusivity of online learning, an appraisal of first-hand experience of SWD studying online is a missing perspective. Accordingly, we aimed to explore their experience, using thematic analysis of semi-structured interviews involving ten SWD. Three themes emerged: (1) having control over studies as an advantage of online learning, (2) personal touch helps SWD’s online learning, and (3) challenges SWD experience with the social element of online learning. Our findings will help to develop the inclusivity of online learning to a new level. 相似文献
80.
Rachel E. Stark Lynne E. Bernstein Rosemary Condino Michael Bender Paula Tallal Hugh Catts 《Annals of dyslexia》1984,34(1):49-68
Children identified as normal or as specifically language impaired (SLI) were given speech, language, and intelligence testing
on a longitudinal basis. Fourteen normal and 29 SLI children between the ages of 4 1/2 and 8 years were tested at Time 1.
They were retested three to four years later when they were 8 to 12 years old. The results indicated that both the normal
and the SLI children continued to develop skills in receptive and expressive language and speech articulation across the 3-
to 4-year period intervening between evaluations. Overall, however, the SLI children appeared to develop language skills at
a slower than normal rate and 80% of them remained language impaired at Time 2. In addition, the majority of the SLI children
manifested reading impairment at Time 2, while none of the normal children did so. The implications for the educational management
of SLI children are discussed.
Research supported by the March of Dimes, Grant #12-84.
Presented at the 32nd Annual Conference of The Orton Dyslexia Society, Baltimore, Maryland, November 1982. 相似文献