Teacher enthusiasm: Dimensionality and context specificity   总被引：1，自引：0，他引：1  

Mareike Kunter  Anne Frenzel  Gabriel Nagy  Jürgen Baumert  Reinhard Pekrun 《Contemporary educational psychology》2011,36(4):289-301

Enthusiasm is considered an important characteristic of effective teachers. However, the conceptualization of the term in the research literature is inconsistent. Whereas most studies use the term “enthusiasm” to describe features of instruction, some have used it to describe a characteristic of teachers. This research seeks to clarify the concept of teacher enthusiasm, examining its dimensionality and context specificity. The study draws on three samples of teachers who were administered questionnaire measures of enthusiasm. In two samples (N = 205 and 332), it was possible to match teacher data with data on the students taught. In another sample (N = 113), additional measures of work-related wellbeing were implemented. Confirmatory multigroup factor analyses showed that two dimensions of teacher enthusiasm can be distinguished, namely enthusiasm for teaching and enthusiasm for the subject. These dimensions differed in their meaning and context specificity. Whereas teaching enthusiasm was systematically linked to occupational wellbeing and to classroom variables, subject enthusiasm related only moderately to other measures of occupational wellbeing and was independent of characteristics of the classes taught.  相似文献   

Whole-body vibration effects on the muscle activity of upper and lower body muscles during the baseball swing in recreational baseball hitters     

Reyes GF  Dickin DC  Crusat NJ  Dolny DG 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(4):280-293

The purpose of this study was to evaluate the effects of whole-body vibration (WBV) on the muscle recruitment of selected upper and lower body muscles during the baseball swing. Participants were recreationally trained males (n = 16, 22 +/- 2 years, 181.4 +/- 7.4 cm, 84.7 +/- 9.0 kg), with previous baseball experience. Subjects participated in three randomized sessions on separate days, consisting of three sets of five swings offa hitting tee. Exercises (upper and lower body dynamic and static movements) with or without WBVexposure were performed between swing sets. During each swing, the gastrocnemius, biceps femoris, gluteus maximus, pectoralis major, latissimus dorsi, and triceps brachii were evaluated for electromyographic (EMG) activity. EMG values were normalized to EMG measured during maximal voluntary isometric contraction. Statistical analysis revealed no significant differences in EMG activity across the three treatments. In addition, the results displayed a specific muscle recruitment order during the swing, starting with the lower body followed by the upper body muscles. This study was the first to report the recruitment order during the baseball swing. Although acute exposure to WBV did not significantly alter the muscle recruitment, these results may prove useful for practitioners looking to enhance baseball swing performance.  相似文献   

New ways to deal with known preanalytical issues: use of transilluminator instead of tourniquet for easing vein access and eliminating stasis on clinical biochemistry     

Lima-Oliveira G  Lippi G  Salvagno GL  Montagnana M  Manguera CL  Sumita NM  Picheth G  Guidi GC  Scartezini M 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2011,21(2):152-159

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Images of life in America: The impact of American T.V. in Israel     

Gabriel Weimann 《Int J Intercult Relat》1984,8(2):185-197

The present study sets out to uncover young Israelis' perceptions of the American reality using the postulates and methodology of the cultivation analysis approach to mass communication. The comparison of the perceptions of “light” and “heavy” T.V. viewers with measures of the actual reality reveals that heavy viewers demonstrate a strong and consistent tendency to paint a rosier picture of life in the U.S., in terms of wealth and standard of living, even when other factors (age, gender, residence and ethnic group) are held constant. The findings of this study have methodological implications concerning the study of media effects as well as theoretical implications regarding the ongoing debate on “media imperialism.”  相似文献   

Zum Zusammenhang zwischen Übung und Transfer beim motorischen Lernen     

Georg Nagy 《Sportwissenschaft》1972,2(4):423-428

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Association between knee-to-hip flexion ratio during single-leg vertical landings,and strength and range of motion in professional soccer players     

Gustavo Leporace  Marcio Tannure  Gabriel Zeitoune  Leonardo Metsavaht  Moacir Marocolo  Alex Souto Maior 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(3):411-420

Abstract

The aim of this study was to test the correlation between knee-to-hip flexion ratio during a single leg landing task and hip and knee strength, and ankle range of motion. Twenty-four male participants from a professional soccer team performed a continuous single leg jump-landing test during 10s, while lower limb kinematics data were collected using a motion analysis system. After biomechanical testing, maximal isometric hip (abduction, extension, external rotation), knee extension and flexion strength were measured. Maximum ankle dorsiflexion range of motion was assessed statically using the weight bearing lunge test. Pearson correlation coefficients were calculated to determine the associations between the predictor variables (knee and hip strength, and ankle ROM) and the main outcome measure (knee-to-hip flexion ratio). Correlation between knee-to-hip flexion ratio and hip abductors strength was significant (r = ?0.47; p = 0.019). No other significant correlations were observed among the variables (p > 0.05). These results demonstrated that a lower hip abductors strength in male soccer players was correlated with a high knee-to-hip flexion ratio during landing from a single leg jump, potentially increasing knee overload by decreasing energy absorption at the hip. The results provide a novel proposal for the functioning of hip muscles to control knee overload.  相似文献   

Social media and students’ behavioral intentions to enroll in postgraduate studies in Kenya: a moderated mediation model of brand personality and attitude     

Gabriel Simiyu  Ronald Bonuke  Joyce Komen 《Journal of Marketing for HIGHER EDUCATION》2020,30(1):66-86

ABSTRACT

Using cross-sectional data from 504 students from four Kenyan universities, this study evaluates the indirect effect of brand personality on the relationship between social media and students’ behavioral intentions to enroll in postgraduate studies. Additionally, the study examines the moderating effect of attitude on the relationship between social media and brand personality, social media and students’ behavioral intentions, brand personality and students’ behavioral intentions. Finally, it investigates the moderating effect of attitude on the indirect process of brand personality on the relationship between social media and students’ behavioral intentions. The study is guided by the Theory of Planned Behavior, Technology Acceptance Model and Self Congruity Theory. Process Macro is used to analyze data. Results indicate that social media significantly predicts students’ behavioral intentions and this relationship is partially mediated by brand personality. Besides, attitude moderates the relationship between social media and students’ behavioral intentions and also the relationship between brand personality and students’ behavioral intentions. Finally, attitude has a conditional effect on the indirect relationship between social media and student’s behavioral intentions via brand personality and this effect is much stronger with a higher level of attitude. These findings contribute new knowledge to literature and theory.  相似文献   

Book reviews     

George Gerbner  Gabriel D. Ofiesh  Jerry M. Lewis  Frederick G. Knirk  F. Earle Barcus  Robert Steele 《Educational technology research and development : ETR & D》1966,14(3):407-416

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Academic ideologies and styles of research among academic researchers     

Gabriel Haim 《Research in higher education》1981,15(4):291-304

This article focuses on the extent to which styles of research could account for academic ideologies, concerning both faculty and student affairs, among academic researchers in sociology, psychology, political science, and education. The hypothesis maintains that researchers in all four fields who favor styles of research which compete successfully are likely to take a conservative attitude toward student and faculty affairs. In contrast, researchers who favor styles of research which compete less successfully are likely to take an attitude favoring changes. The results confirm the hypothesis mainly among faculty in psychology and very little among faculty in other fields. The data are based on a secondary analysis of data collected by Ladd and Lipset in their 1975 Survey of the American Professoriate.  相似文献   

Reimagining liberal education: affiliation and inquiry in democratic schooling. By Hanan Alexander     

Gabriel Goldmeier 《British Journal of Educational Studies》2016,64(3):407-409

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