Limits and potentials of social networking in academia: case study of the evolution of a mathematics Facebook community     

John Hallam Goodband  Peter Charles Samuels  Duncan Lawson  Roy Bhakta 《Learning, Media and Technology》2012,37(3):236-252

The use of social networking services has rapidly increased in recent years, especially by university students. Some authors assert that they have educational potential in terms of promoting collaborative learning practices among undergraduate students which enhance engagement and understanding. This possibility is particularly relevant to mathematics learning, because university communities are frequently experienced as isolating and performance-oriented. This case study reports on the use of Facebook to support mathematical communication and more participative learning identities within a UK university mathematics department. It describes how the reactive formation of a student-led Facebook community became a source of conflict within the wider academic social community and how this conflict was eventually resolved. While it raises questions about the extent to which Facebook can encourage open collaborative learning within the wider context of student aspirations in a competitive climate, it notes its potential for fostering cross-cohort student support in a subject which frequently induces anxiety in its students.  相似文献   

Match Point: Duplication and the Scholarly Record: The Online Catalogue and Repository Interoperability Study (OCRIS), and Its Findings on Duplication and Authority Control in OPACs and IRs     

Duncan Birrell  Gordon Dunsire  Kathleen Menzies 《Cataloging & classification quarterly》2013,51(5):377-402

This article summarizes the methodology and findings of the Online Catalogue and Repository Interoperability Study (OCRIS), a project recently carried out by the Centre for Digital Library Research at the University of Strathclyde, funded by the Joint Information Systems Committee (JISC). In the context of the Online Public Access Catalogs (OPAC) and the recent development of the Institutional Repository (IR) within Higher Education Institutions in the United Kingdom, it considers issues of metadata quality, name authority control, and standardized subject headings, as well as departmental and institutional workflows. It also considers duplication and scope overlap within institutions with more than one IR.  相似文献   

“I know it’s not your job but…”: Extra-role tasks,communication, and leader-member exchange relationships     

Patricia M. Sias  Kaylin L. Duncan 《Communication quarterly》2013,61(4):355-382

Employees are sometimes assigned tasks that lie outside their official role. Employees may perceive such extra-role tasks (ERTs) as unreasonable or illegitimate. Grounded in role theory and leader-member exchange (LMX) theory, we conducted two studies that examined how ERTs are associated with supervisor-employee relationship quality and how the ERT assignment is communicated. While supervisor-subordinate relationship quality was unrelated to the likelihood and frequency with which supervisors assign ERTs to employees, employees with low-quality relationships evaluated ERTs as more unreasonable than those in high-quality relationships. Study 1 showed that ERT messages that included a request (vs. command), acknowledgement, explanation, and appreciation were associated with higher quality LMX relationships. Study 2 found that ERT message characteristics influenced the perceived unreasonableness of the task for employees in high-quality relationships, suggesting employees in such relationships are particularly vulnerable to “job creep” and role expansion.  相似文献   

On the shortcomings of our organisational forms: with implications for educational change and school improvement     

Duncan Waite 《School Leadership & Management》2013,33(3):225-248

This article informs school improvement and educational change from a radically different perspective. Building upon work done recently in neural psychology, primatology and ethology, the article examines four common and general types of organisational form: the cell, the silo, the pyramidal, and the network types of organisational structures. Status and dominance hierarchies are discussed, as are the dynamics of collaboration/competition and collectivism/individualism. Final consideration is given to the concepts of culture and community, especially as they manifest in the school improvement literature.  相似文献   

Concerns about the Disproportionate Use of Economic Research in the FCC'S Media Ownership Studies from 2002–2007     

Jeffrey Layne Blevins Ph.D.  Duncan H. Brown Ph.D. 《广播与电子媒介杂志》2013,57(4):603-620

An analysis of the studies used by the U.S. Federal Communications Commission (FCC) in its media ownership proceedings from 2002–2007 found a disproportionate use of economic research to support the agency's rule changes. The use of this research in policymaking is important because the FCC's reliance on economic literature may have helped justify a “procedural” definition of what constitutes the public interest, and a “neoliberal” faith in the wisdom of market forces to ensure that the public interest is being served. The findings suggest that the inclusion of a broader range of scholarship, especially media research, would not have supported the FCC's decision to further relax media ownership rules.  相似文献   

Preparing the “New” Biologist of the Future: Student Research at the Interface of Mathematics and Biology     

Sarah I. Duncan  Pamela Bishop  Suzanne Lenhart 《CBE life sciences education》2010,9(3):311-315

We describe a unique Research Experience for Undergraduates and Research Experience for Veterinary students summer program at the National Institute for Mathematical and Biological Synthesis on the campus of the University of Tennessee, Knoxville. The program focused on interdisciplinary research at the interface of biology and mathematics. Participants were selected to work on projects with a biology mentor and a mathematics mentor in an environment that promoted collaboration outside of the students'' respective disciplines. There were four research projects with teams of four participants and two faculty mentors. The participants consisted of a mixture of 10 undergraduates in biology- and mathematics-related disciplines, four veterinary students, and two high-school teachers. The activities included lectures on both the biological and mathematical backgrounds of the projects, tutorials for software, and sessions on ethics, graduate school, and possible career paths for individuals interested in biology and mathematics. The program was designed to give students the ability to actively participate in the scientific research process by working on a project, writing up their results in a final report, and presenting their work orally. We report on the results of our evaluation surveys of the participants.  相似文献   

Effects of age, walking speed, and body composition on pedometer accuracy in children   总被引：3，自引：0，他引：3  

Duncan JS  Schofield G  Duncan EK  Hinckson EA 《Research quarterly for exercise and sport》2007,78(5):420-428

The objective of this study was to investigate the effects of age group, walking speed, and body composition on the accuracy of pedometer-determined step counts in children. Eighty-five participants (43 boys, 42 girls), ages 5-7 and 9-11 years, walked on a treadmill for two-minute bouts at speeds of 42, 66, and 90 m x min(-1) while wearing a spring-levered (Yamax SW-200) and a piezoelectric (New Lifestyles NL-2000) pedometer. The number of steps taken during each bout was also recorded using a hand counter Body mass index (BMI) was calculated from height and mass, and percentage of body fat (%BF) was determined using hand-to-foot bioelectrical impedance analysis. The tilt angle of the pedometer was assessed using a magnetic protractor. Both pedometers performed well at 66 and 90 m x min(-1), but undercounted steps by approximately 20% at 42 m x min(-1). Although age group, BMI, waist circumference, and %BF did not affect pedometer accuracy, children with large pedometer tilt angles (> or =10 degrees) showed significantly greater percent bias than those with small tilt angles (< 10 degrees). We suggest that the style of waistband on the child's clothing is a more important determinant of tilt angle and thus pedometer accuracy than body composition. Our results also indicate that the NL-2000 pedometer provides similar accuracy and better precision than the SW-200 pedometer, especially in children with large tilt angles. We conclude that fastening pedometers to a firm elastic belt may improve stability and reduce undercounting in young people.  相似文献   

Mechanism of the pocket watch     

H.E. Duncan 《Journal of The Franklin Institute》1895,139(2):81-100

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Obituary     

Diane Duncan 《Education 3-13》2013,41(2)

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"潜藏在华丽的异域外表之下的是什么":桑顿的中国风     

邓肯·坎贝尔  朱菲 《中国文化研究》2006,(1):87-93

2002年由海伦·克拉克总理就1881年华人移民法案及其他带有歧视性的法规,向新西兰华人社会做出了正式的政府道歉;这一事件使公众舆论集中到对早期新西兰社会的一大特征,即持久而强烈的“恐华症”的关注之上。与之相反但程度同样强烈的“亲华症”,虽也是殖民社会各组成部分的显著特征,却较少有人提及,具体来说就是指时尚风潮对奇异情趣的“中式”装饰艺术的追求,通常被称为中国风。这些“中式”物品沉默不言但却又雄辩滔滔的外观,能帮助我们理解早期华裔新西兰人所面对的法律制度上的歧视吗?难道“恐华症”与“亲华症”仅仅是早期新西兰社会…  相似文献