BOOK REVIEW     

Larry Cadrain 《Educational gerontology》2013,39(12):903-904

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Knee extensor and flexor torque development with concentric and eccentric isokinetic training     

Miller LE  Pierson LM  Nickols-Richardson SM  Wootten DF  Selmon SE  Ramp WK  Herbert WG 《Research quarterly for exercise and sport》2006,77(1):58-63

This study assessed muscular torque and rate of torque development following concentric (CON) or eccentric (ECC) isokinetic training. Thirty-eight women were randomly assigned to either CON or ECC training groups. Training consisted of knee extension and flexion of the nondominant leg three times per week for 20 weeks (SD = 1). Eccentric training increased ECC knee extension and flexion peak torque more than CON training. The ECC group improved acceleration time and time to peak torque with ECC movements versus the CON group. Slow-velocity ECC isokinetic training yielded greater ECC and similar CON torque development gains versus CON training over the course of 20 weeks in young women.  相似文献   

David Tyack,November 17, 1930 – October 27, 2016     

Larry Cuban 《Educational Studies A Journal of the American Educational Studies Association》2017,53(1):98-99

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Do no-loan policies change the matriculation patterns of low-income students?     

Glen R. Waddell  Larry D. Singell Jr. 《Economics of Education Review》2011,30(2):203-214

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Does food insecurity at home affect non-cognitive performance at school? A longitudinal analysis of elementary student classroom behavior     

Larry L. Howard 《Economics of Education Review》2011,30(1):157-176

This paper estimates models of the transitional effects of food insecurity experiences on children's non-cognitive performance in school classrooms using a panel of 4710 elementary students enrolled in 1st, 3rd, and 5th grade (1999-2003). In addition to an extensive set of child and household-level characteristics, we use information on U.S. counties to control for potential confounding effects of the local economic and noneconomic environment on children's household transitions between states of food insecurity and food security. The time horizon of our analysis affords insight into factors underlying children's formation of non-cognitive skills and the efficiency of classroom-based educational production in elementary school. Overall, we find significant negative developmental effects for children with food insecurity at home; and that children experiencing an early transition from food insecurity in 1st grade to food security in 3rd grade have even larger impairments that persist through 5th grade.  相似文献   

Intent-based diversification of web search results: metrics and algorithms     

Olivier Chapelle  Shihao Ji  Ciya Liao  Emre Velipasaoglu  Larry Lai  Su-Lin Wu 《Information Retrieval》2011,14(6):572-592

We study the problem of web search result diversification in the case where intent based relevance scores are available. A diversified search result will hopefully satisfy the information need of user-L.s who may have different intents. In this context, we first analyze the properties of an intent-based metric, ERR-IA, to measure relevance and diversity altogether. We argue that this is a better metric than some previously proposed intent aware metrics and show that it has a better correlation with abandonment rate. We then propose an algorithm to rerank web search results based on optimizing an objective function corresponding to this metric and evaluate it on shopping related queries.  相似文献   

Applications of clustering to information system design     

Larry E. Stanfel 《Information processing & management》1983,19(1):37-50

Given the difficulty of designing and creating information systems of many components and interconnections, it is commonplace to find these tasks accomplished by means of a partition into subsystems. Later the distinct subsystems are made to interface with one another and an overall system is achieved. The purpose of the present paper is to point out the availability of methods for effecting the partition in optimal or approximately optimal ways. Clustering algorithms for the specific case of information systems are obtained and exemplified.  相似文献   

Finding related sentence pairs in MEDLINE     

Smith LH  Wilbur WJ 《Information Retrieval》2010,13(6):601-617

We explore the feasibility of automatically identifying sentences in different MEDLINE abstracts that are related in meaning. We compared traditional vector space models with machine learning methods for detecting relatedness, and found that machine learning was superior. The Huber method, a variant of Support Vector Machines which minimizes the modified Huber loss function, achieves 73% precision when the score cutoff is set high enough to identify about one related sentence per abstract on average. We illustrate how an abstract viewed in PubMed might be modified to present the related sentences found in other abstracts by this automatic procedure.  相似文献   

Quality, Evolution, and Positional Change of University Students’ Argumentation Patterns About Organic Agriculture During an Argument–Critique–Argument Experience     

Shu-Mey Yu  Larry D. Yore 《International Journal of Science and Mathematics Education》2013,11(5):1233-1254

The purpose of this study was to investigate the quality, evolution, and position of university students’ argumentation about organic agriculture over a 4-week argument–critique–argument e-learning experience embedded in a first year university biology course. The participants (N??=??43) were classified into three groups based on their epistemological views. Data collected from individual arguments, group deliberations, and individual critiques were coded and analyzed to establish the quality and evolution of argumentation. Results indicated significant improvement in the quality of their justifications between the first and second arguments. Post-hoc comparison of epistemological groups indicated that the more constructivist-oriented students had a greater significant evolution of their justifications than the more empiricist-oriented students, but there was no significant main effect for epistemological orientation. Qualitative analysis of the intervening critiques indicated that some students incorporated or used other students’ arguments or counter-arguments to change their position or to enhance the justification of their original position on organic agriculture, while others appeared to be locked into a confirmation-bias stance and search for evidence that supported their original position and disregarded contradictory evidence.  相似文献   

Identifying the required knowledge elements for the effective detection,investigation, and prosecution of high technology crime: The perspective of academe     

Larry J. Myers  Laura B. Myers 《Journal of Criminal Justice Education》2013,24(2):245-267

This is a selective bibliography of 89 references on recruitment of minority students and faculty for graduate and professional schools and programs. Education, social sciences, and law literature were scanned for the years 1981 to 1991. Resources on recruitment in graduate and professional education are included, as well as a few relevant references of somewhat broader scope on diversity in higher education. This bibliography is divided into two parts: Part 1 is on student recruitment, Part 2 on faculty recruitment. Each part is subdivided into three sections—general literature, strategies and programs, and literature pertaining to particular fields of study or professions.  相似文献