Understanding Collaboration Using New Technologies: A Structurational Perspective     

James Evans  Laurence Brooks 《The Information Society》2013,29(3):215-220

Recent research in information systems (IS) has focused on the application of social theory in general and Anthony Gidden's structuration theory in particular to help reveal how technical systems can support or hinder human interaction in societal, organizational, and personal contexts. This article examines the potential of structuration theory to facilitate an understanding of social and organizational issues that surround collaboration using new technologies.  相似文献   

Health and Physical Education Program for Boys in Ohio High Schools     

Major Laurence E. Owens USAF 《Research quarterly for exercise and sport》2013,84(4):461-469

Abstract

This study was undertaken to determine the status of the health and physical education program for boys in 101 Ohio secondary schools and to determine the relationship of school size, community size, accreditation, geographic area, type of school district, and consolidation to this status. According to the results of this study, accreditation and school size have considerably more influence upon the quality of the program than any other factor studied. Schools enrolling 500–999 students have a significantly better health and physical education program than schools enrolling less than 500 students. Enrollment above 1,000 tends to have a slight negative influence upon the quality of the program.  相似文献   

A Comparative Study of Selected Handball Techniques     

Dr. Laurence E. Holt 《Research quarterly for exercise and sport》2013,84(4):700-703

Abstract

This study compared the effectiveness of the two most commonly used handball arm-hand actions in relation to (a) handball velocity, (b) time required to execute each stroke and (c) distance the striking hand travels during the propulsive phase of each stroke. Handball velocity was measured with the Hale Reaction-Performance Timer. The data for the remaining variables were obtained through cinematographical analysis. Eleven experienced handball players at Springfield College were selected as subjects. Velocity results indicated that significant differences existed between the flexion-extension and straight arm techniques. Differences between the two stroking techniques for execution time and hand distance traveled were found, although the data for these two variables were not scrutinized statistically.  相似文献   

Analysing students’ reasoning in science: A pragmatic view of theoretical problems     

Laurence Viennot 《International Journal of Science Education》2013,35(2):151-162

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PROSPECTIVE TEACHERS' AWARENESS AND EXPRESSION OF EMOTIONS: ASSOCIATIONS WITH PROPOSED STRATEGIES FOR BEHAVIORAL MANAGEMENT IN THE CLASSROOM     

Pamela W. Garner  Laurence K. Moses  Badiyyah Waajid 《Psychology in the schools》2013,50(5):471-488

This research examined whether prospective teachers’ emotion regulation styles, dispositional empathy, and conceptions of competent student emotion and behavior were predictive of their attitudes about bullying and proposed responses to peer conflict. Overall, participants perceived physical bullying as more serious than verbal and relational bullying. Prospective teachers also expressed higher levels of sympathy for victims and a greater likelihood of intervention in response to physical bullying. Regression analyses demonstrated that valuing emotional competence and the role of teachers in supporting its development were meaningfully associated with expressed support for victims and with proposed responses to the perpetrators of this type of classroom aggression. Interestingly, those respondents who reported higher levels of situationally specific sympathy for victims (and not dispositional empathy) also reported that they would be more likely than their counterparts to intervene on their behalf. The emotional reactivity component of dispositional empathy was, however, positively associated with regulated responses to peer conflict involving a difficult child. The emotion regulation variables, although associated with the outcome measures in correlational analyses, were not unique predictors of prospective teachers’ bullying attitudes.  相似文献   

Introduction     

Parker  Laurence  Villenas  Sofia 《The Urban Review》1999,31(3):221-223

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Glenohumeral contact force during flat and topspin tennis forehand drives     

Yoann Blache  Thomas Creveaux  Raphaël Dumas  Laurence Chèze  Isabelle Rogowski 《Sports biomechanics / International Society of Biomechanics in Sports》2017,16(1):127-142

The primary role of the shoulder joint in tennis forehand drive is at the expense of the loadings undergone by this joint. Nevertheless, few studies investigated glenohumeral (GH) contact forces during forehand drives. The aim of this study was to investigate GH compressive and shearing forces during the flat and topspin forehand drives in advanced tennis players. 3D kinematics of flat and topspin forehand drives of 11 advanced tennis players were recorded. The Delft Shoulder and Elbow musculoskeletal model was implemented to assess the magnitude and orientation of GH contact forces during the forehand drives. The results showed no differences in magnitude and orientation of GH contact forces between the flat and topspin forehand drives. The estimated maximal GH contact force during the forward swing phase was 3573 ± 1383 N, which was on average 1.25 times greater than during the follow-through phase, and 5.8 times greater than during the backswing phase. Regardless the phase of the forehand drive, GH contact forces pointed towards the anterior-superior part of the glenoid therefore standing for shearing forces. Knowledge of GH contact forces during real sport tasks performed at high velocity may improve the understanding of various sport-specific adaptations and causative factors for shoulder problems.  相似文献   

Rapid demand curves for behavioral economics     

Thomas G. Raslear  Richard A. Bauman  Steven R. Hursh  David Shurtleff  Laurence Simmons 《Learning & behavior》1988,16(3):330-339

A method for determining the relationship between food consumption and the price of food (demand function) in behavioral economic experiments is described. Although previous methods have generally required as long as 40 days, the present method can generate a complete demand function within 7 days, and therefore may be more suitable for use in the evaluation of drugs, toxins, and physiological/anatomical interventions. Moreover, measures of circadian rhythmicity, post-reinforcement pause durations, and interresponse times can also be generated. Three experiments tested the stability of the method in a variety of procedural manipulations: repeated exposure to the procedure, increasing versus random daily food price, and size of daily changes in food price. The procedure generated demand functions that were similar to those that require more extended testing, and the demand functions were not generally affected by procedural manipulations. Body weight, which can also affect consumption, generally decreases with increases in the price of food; so this variable should be recorded and used as a covariate in analyzing demand functions. With the exception of circadian rhythmicity, the other measures were stable across procedural variations and showed expected changes as a function of food price: postreinforcement pause durations increased as price increased, but interresponse times did not.  相似文献   

Patterns of Competence and Adjustment among Adolescents from Authoritative, Authoritarian, Indulgent, and Neglectful Families   总被引：36，自引：0，他引：36  

Susie D. Lamborn  Nina S. Mounts  Laurence Steinberg  Sanford M. Dornbusch 《Child development》1991,62(5):1049-1065

In order to test Maccoby and Martin's revision of Baumrind's conceptual framework, the families of approximately 4,100 14-18-year-olds were classified into 1 of 4 groups (authoritative, authoritarian, indulgent, or neglectful) on the basis of the adolescents' ratings of their parents on 2 dimensions: acceptance/involvement and strictness/supervision. The youngsters were then contrasted along 4 sets of outcomes: psychosocial development, school achievement, internalized distress, and problem behavior. Results indicate that adolescents who characterize their parents as authoritative score highest on measures of psychosocial competence and lowest on measures of psychological and behavioral dysfunction; the reverse is true for adolescents who describe their parents as neglectful. Adolescents whose parents are characterized as authoritarian score reasonably well on measures indexing obedience and conformity to the standards of adults but have relatively poorer self-conceptions than other youngsters. In contrast, adolescents from indulgent homes evidence a strong sense of self-confidence but report a higher frequency of substance abuse and school misconduct and are less engaged in school. The results provide support for Maccoby and Martin's framework and indicate the need to distinguish between two types of "permissive" families: those that are indulgent and those that are neglectful.  相似文献   

Spatial semiotics and general rules in the construction of graphic structures by young children     

Gaby Netchine-Grynberg  Serge Netchine  Laurence Pannier 《European Journal of Psychology of Education - EJPE》1993,8(1):65-83

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