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41.
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
42.
43.
Alma Harris Michelle Jones Donnie Adams Kenny Cheah 《School Leadership & Management》2019,39(1):76-95
This article provides a review of the contemporary instructional leadership research base in Malaysia. The core aim of this review is to assess the recent knowledge base on instructional leadership in Malaysia and to evaluate its current contribution to the existing international literature. The article explores a range of published material that has focused explicitly on instructional leadership and instructional leadership practices in Malaysia, including that written in Bahasa Malaysia. The article outlines the findings from the review and highlights certain strengths and limitations. The article concludes by identifying areas for further enquiry and investigation. 相似文献
44.
Fleer Marilyn Adams Megan Gunstone Richard 《Cultural Studies of Science Education》2019,14(4):1045-1069
Cultural Studies of Science Education - As increasing numbers of families migrate from a range of countries into communities where Western science is viewed as valued curriculum content, a need for... 相似文献
45.
This study examined the contributions of the different components of the working memory (WM) model to a range of mathematical skills in children, using measures of WM function that did not involve numerical stimuli. A sample of 148 children (78 Year 3, mean age 8 years and 1 month, and 70 Year 5 pupils, mean age 9 years and 10 months) completed WM measures and age‐appropriate mathematics tests designed to assess four mathematical skills defined by the National Curriculum for England. Visuo‐spatial sketchpad and central executive, but not phonological loop, scores predicted unique variance in children’s curriculum‐based mathematical attainment but the relative contributions of each component did not vary much across the different skills. Subsequently, the mathematics data were re‐analysed using cluster analysis and new performance‐related mathematics factors were derived. All three components of WM predicted unique variance in these performance‐related skills, but revealed a markedly distinct pattern of associations across the two age groups. In particular, the data indicated a stronger role for the visuo‐spatial sketchpad in the younger children’s mathematics performance. We discuss our findings in terms of the importance of WM in the development of early mathematical ability. 相似文献
46.
47.
Curt M. Adams Jordan K. Ware Ryan C. Miskell Patrick B. Forsyth 《The Journal of educational research》2016,109(2):169-180
This study contributes to the development of a positive framework for effective public schools in 2 ways. First, it advances the construct self-regulatory climate as consisting of 3 generative school norms—collective faculty trust in students, collective student trust in teachers, and student-perceived academic emphasis. The authors argue these norms signal a school climate supportive of student psychological needs. Second, they test the predictive validity of self-regulatory climate by empirically examining its relationship with school performance. Results of structural equation modeling support the theory that collective faculty trust in students, collective student trust in teachers, and student-perceived academic emphasis combine to form a self-regulatory climate that has positive consequences for urban school performance. 相似文献
48.
Miwa A. Takeuchi Pratim Sengupta Marie-Claire Shanahan Jennifer D. Adams Maryam Hachem 《Studies in Science Education》2020,56(2):213-253
ABSTRACT Science, Technology, Engineering and Mathematics (STEM) education garnered significant attention in recent years and has emerged as a key field of research globally. The goal of this article is to offer a critical review of how STEM education and its transdisciplinarity were defined and/or positioned in empirical studies published during the early formulation of the field. In particular, we sought to identify how these studies conceptualise learners and learning and portray the underlying assumptions in light of the macrosystemic discourses that often serve as ideological forces in shaping research and practice of STEM education. We examined 154 peer-reviewed articles published between January 2007 and March 2018 and analysed them along several emergent dimensions: their geospatial focus, focal disciplinary areas, methodological and theoretical assumptions, and major findings. Grounded in a critical transdisciplinary perspective, we used critical discourse analysis to identify how macrosystemic and institutionalised forces – overtly and implicitly – shape what counts as STEM education research, including its goals and conceptualisations of learners and learning. Our analysis highlights the need for aesthetic expansion and diversification of STEM education research by challenging the disciplinary hegemonies and calls for reorienting the focus away from human capital discourse. 相似文献
49.
Craig W. Johnson Marianne Adams Roger Bruning 《Educational technology research and development : ETR & D》1985,33(2):125-138
Consistent results of two experiments with relatively technical, native language vocabulary, showed that effectiveness of
keyword methods depended upon whether meanings of words to be learned were abstract or concrete and whether comprehension
was assessed immediately or after a delay. Keywords bearing acoustical similarities to vocabulary items whose meanings were
presented as sentences consistently facilitated students’ retention of the meanings of concrete items on immediate posttests.
However, in contrast to recent research on foreign language vocabulary having simpler definitions, these experiments showed
that it may be difficult to use the keyword method to aid long-term retention with moderately complex. abstract, native language
vocabulary.
Parts of this study, which was partially supported by the Kansas State University Bureau of General Research, were presented
at the Annual Meeting of the American Educational Research Association, Boston, 1980. 相似文献
50.
Jeff Adams 《The International Journal of Art & Design Education》2001,20(2):133-143
The paper describes a project for Liverpool John Moores University PGCE Art and Design students in which they carried out practical research into comics and graphic novels as part of their preparation for teaching. The students were encouraged to investigate the history of the genre, its formal properties as well as its potential as a vehicle for social realism. The practical task was to prepare a single comic book page design, in the course of which they explored a range of possibilities from imaginative children's stories to serious issues such as illness and abuse. They took the opportunity to investigate the potential of this sequential medium to construct narratives using devices such as sequence, repetition and multiple perspectives as well as the juxtapositions of image and text. The paper contains examples of students' work where the investigations yielded interesting and innovative results. 相似文献