The Reliability of the [Vdot]O2-HR Relation during Graded Treadmill Exercise in Prepubertal Boys and Adult Men     

Stanley P. Sady  Mark P. Savage  Wade H. Thomson  Marlene M. Petratis 《Research quarterly for exercise and sport》2013,84(3):302-304

Abstract

When subjects make simultaneous aiming movements of the upper limbs over different distances, assimilation effects are shown; the shorter distance limb overshoots when paired with a longer distance limb. However, it is not known whether assimilation effects are due to variations in distance per se or to variations in target location. To separate the possible influences of distance and location, 60 subjects made rapid bimanual aiming movements in one of four conditions. The two different-distance groups made a 20° movement in the left hand and a 60° movement in the right hand to either the same or different target locations. The comparison groups moved 20° in each limb. Somewhat surprisingly, spatial assimilations were greater when moving different distances to the same, rather than different, target locations, which suggests interlimb differences in distance mediate assimilation effects rather than target location. Temporal assimilations were greater when distance and location were varied, but the assimilations were not related to interlimb differences in velocity, as predicted by Marteniuk and MacKenzie (1980).  相似文献   

Improving search via personalized query expansion using social media     

Dong Zhou  Séamus Lawless  Vincent Wade 《Information Retrieval》2012,15(3-4):218-242

Social tagging systems have gained increasing popularity as a method of annotating and categorizing a wide range of different web resources. Web search that utilizes social tagging data suffers from an extreme example of the vocabulary mismatch problem encountered in traditional information retrieval (IR). This is due to the personalized, unrestricted vocabulary that users choose to describe and tag each resource. Previous research has proposed the utilization of query expansion to deal with search in this rather complicated space. However, non-personalized approaches based on relevance feedback and personalized approaches based on co-occurrence statistics only showed limited improvements. This paper proposes a novel query expansion framework based on individual user profiles mined from the annotations and resources the user has marked. The underlying theory is to regularize the smoothness of word associations over a connected graph using a regularizer function on terms extracted from top-ranked documents. The intuition behind the model is the prior assumption of term consistency: the most appropriate expansion terms for a query are likely to be associated with, and influenced by terms extracted from the documents ranked highly for the initial query. The framework also simultaneously incorporates annotations and web documents through a Tag-Topic model in a latent graph. The experimental results suggest that the proposed personalized query expansion method can produce better results than both the classical non-personalized search approach and other personalized query expansion methods. Hence, the proposed approach significantly benefits personalized web search by leveraging users’ social media data.  相似文献   

Building the College Library Collection to Support Curriculum Growth     

Anne Marie Austenfeld 《资料收集管理》2013,38(3):209-227

Because the mission of smaller academic libraries serving fewer than 10,000 full-time enrolled students is mainly to serve the curriculum-based needs of students and faculty, collection management in these libraries needs to be directly related to changes in the curriculum of the parent institution. A look into applicable collection management literature, combined with one library's experience, offers insights about effective curriculum-based collection building in a smaller academic library setting. To achieve efficiency, collection managers must maintain up-to-date knowledge of changing instructional and research needs at their institutions, the needs new programs have for library materials, appropriate collection assessment tools, and the tasks involved in a focused expansion project. By optimizing consultations with faculty and evaluation procedures scaled to its needs, the library at North Georgia College & State University, a modestly sized academic institution, established a model for becoming an active participant in new course and program planning during the application stage, ensuring appropriate library support for new courses and programs of study.  相似文献   

Review of "The Librarian Stereotype: Deconstructing Perceptions and Presentations of Information Work," edited by Nicole Pagowsky and Miriam Rigby     

Anne M. Sleeman 《资料收集管理》2013,38(4):240-242

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Do Off-Campus Students Use E-Books?     

Pamela Grudzien  Anne Marie Casey 《图书馆管理杂志》2013,53(3-4):455-466

ABSTRACT

The number of electronic books (e-books) that are available is increasing rapidly. Libraries are acquiring them individually, in large groups, and as part of collections. Off-campus librarians perceive them to be the best solution to the problems and expenses related to loaning and shipping print books to off-campus students. This study looks at the usage of e-books by off-campus students at Central Michigan University (CMU) to see if usage patterns can assist librarians with e-book collection development to support off-campus programs.  相似文献   

Developing an effective education reform model for indigenous and other minoritized students     

Alan Russell Bishop  Mere Anne Berryman  Janice Barbara Wearmouth  Mira Peter 《School Effectiveness & School Improvement》2013,24(1):49-70

Educational disparities between indigenous Maori students and those of the majority continue to be a major issue in New Zealand. Te Kotahitanga, an iterative research and development programme, which commenced in 2001, supports teachers to implement a relationship-based pedagogy in their classrooms in order to improve Maori students' achievement in mainstream secondary schools. This article addresses the question of how gains in Maori students' achievement can be sustained and expanded. Schools, from an earlier phase of the project, in their 6th and 7th year of the programme were examined, using a theory-based model designed to evaluate and promote dimensions necessary for effective institutional support of the teaching innovation. This article demonstrates that schools that have been the most effective implementers of the intervention have seen the greatest gains made by Maori students in the 1st year of national assessments. This article then discusses effective leadership for addressing problems schools encountered while implementing the pedagogic reform.  相似文献   

High School Students’ Attitudes Towards Spiders: A cross‐cultural comparison     

Pavol Prokop  Andrea Tolarovičová  Anne M. Camerik  Viera Peterková 《International Journal of Science Education》2013,35(12):1665-1688

Spiders are traditionally considered to be among the least popular of animals. Current evidence suggests that a negative attitude towards spiders could be influenced by both cultural and evolutionary pressures. Some researchers suggest that science education activities could positively influence students’ perceptions of spiders. Their evidence is, however, ambivalent. Using a five‐point score Likert‐type questionnaire in which the items were developed in a similar way to four of Kellert’s categories of attitude (scientistic, negativistic, naturalistic, and ecologistic) towards invertebrates, we compared the level of knowledge of and attitudes towards spiders of high school students from two countries, Slovakia (n = 354) and South Africa (n = 382). The students represented different cultures and followed dissimilar science education curricula. Only among the Slovakian students there was a statistically significant but low correlation between knowledge and attitude (r = 0.30). The South African students scored higher in the categories of scientistic, naturalistic, and ecologistic attitudes. Comparison of attitude towards spiders of indigenous Africans from coeducational Catholic schools revealed that South African students have greater fear of spiders than Slovakian students, supporting the biological preparedness hypothesis. This hypothesis predicts a greater fear of spiders in South Africa than in Europe since several South African spiders possess venoms that are dangerous to humans. The results of this study are discussed from science education, cultural, and evolutionary perspectives.  相似文献   

Teaching: A Job or a Profession? The Perceptions of Educators     

Darla M. Martinez  Mike F. Desiderio  Anne Papakonstantinou 《The Educational forum》2013,77(4):289-296

Researchers designed a study to investigate educators’ perceptions about whether teaching is a job or a profession. A survey was developed to investigate factors such as individual definitions of a job and a profession, years of experience teaching, grade level or category of education, and individual perceptions of a profession. The respondents were 401 upper-level undergraduate preservice teachers and graduate students who were professional educators. Data collected showed many aspects of individuals’ perceptions of teaching including control of teaching and working situations, ethics, and personal perceptions of being a professional. Based on the findings from the study, researchers concluded that educators believe teaching is a profession.  相似文献   

On A Summer's Day     

Karen Anne Smith 《The Educational forum》2013,77(4)

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Reenergizing Small Communities: A Vital Role for Rural Schools     

Kathleen Anne Wright 《The Educational forum》2013,77(4):345-360

New ways of participating in rural communities and in community development have evolved as the structure of rural communities has changed. In some communities, the impetus to redefine and reenergize is strong while, in others, ways to move forward have yet to be identified (Pomeroy 1997). Rural schools serve a vital role in recreating communities in a highly mobile, industrialized society. According to Lyson (2005, 26), “It is important for policy makers, educational administrators, and local citizens to understand that schools are vital to rural communities.”

This article, which is a follow-up to the author's case study involving a small New Zealand rural school (published in The Educational Forum 2003), examines the vital role schools play in recharging small communities.  相似文献