The challenge of change     

Juan-Francisco Perellon PhD candidate 《Tertiary Education and Management》1998,4(3):199-207

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Does early child negative emotionality moderate the association between maternal stimulation and academic readiness and achievement?     

Ophélie A. Collet  Massimiliano Orri  Cédric Galéra  Laura Pryor  Michel Boivin  Richard Tremblay  Sylvana Côté 《Child development》2024,95(3):948-961

We investigated whether child temperament (negative emotionality, 5 months) moderated the association between maternal stimulation (5 months–2½ years) and academic readiness and achievement (vocabulary, mathematics, and reading). We applied structural equation modeling to the data from the Quebec Longitudinal Study of Child Development (N = 1121–1448; mostly Whites; 47% girls). Compared to children with low negative emotionality, those with high negative emotionality had higher levels of academic readiness (6 years) and mathematics achievement (7 years) when exposed to high levels of maternal stimulation (β = 3.17, p < .01 and β = 2.91, p < .01, respectively). The results support the differential susceptibility model whereby highly emotionally negative children were more susceptible to the influences of low and high levels of maternal stimulation in academic readiness and mathematics achievement's developments.  相似文献   

To see or not to see: analyzing difficulties in geometry from the perspective of visual perception     

Hagar Gal  Liora Linchevski 《Educational Studies in Mathematics》2010,74(2):163-183

In this paper, we consider theories about processes of visual perception and perception-based knowledge representation (VPR) in order to explain difficulties encountered in figural processing in junior high school geometry tasks. In order to analyze such difficulties, we take advantage of the following perspectives of VPR: (1) Perceptual organization: Gestalt principles, (2) recognition: bottom-up and top-down processing; and (3) representation of perception-based knowledge: verbal vs. pictorial representation, mental images and hierarchical structure of images. Examples given in the paper were mostly taken from Gal's study (2005) which aimed at identifying and analyzing Problematic Learning Situations (after Gal & Linchevski, 2000) in junior high school geometry classes. Gal's study (2005) suggests that while this theoretical perspective became part of teachers' pedagogic content knowledge, the teachers were aware of their students' thinking processes and their ability to analyze and cope with their students’ difficulties in geometry was improved.  相似文献   

Faculty attitudes and training needs to respond the new European Higher Education challenges     

María José Fernández Díaz  Rafael Carballo Santaolalla  Arturo Galán González 《Higher Education》2010,60(1):101-118

The main objective of the Bologna Process is to create a “European space” for higher education that allows for comparability, compatibility, and coherence between the existing systems of higher education across Europe. This objective is commonly known as the European higher education area (EHEA). The creation of the EHEA is a new and specific challenge for higher education in Europe, one that depends upon improved faculty development and training across Europe. The integration of Spain and other European countries into European higher education more generally entails these challenges. In order for necessary changes in faculty development and training to take place, university managers and policy makers must account for designing training plans, as well the knowledge, attitudes and needs of faculty members. This investigation was undertaken with these themes in mind. Conducted in Madrid, Spain, it included 257 professors from ten different schools of the Universidad Complutense de Madrid. The aim of the investigation was to understand faculty knowledge and attitudes about changes in higher education in Europe. Moreover, with an eye to helping faculty members cope with the change that is accompanying the creation of EHEA, the investigators sought to understand the importance that faculty members place upon professional development and how current approaches to professional development at the university level could be improved. The results indicate a degree of ignorance regarding changes in European higher education as well as a feeling of resistance on the part of many faculty members. While many faculty members consider knowledge of change processes and adaptability to be important qualities, faculty responses also indicate a clear need for guidance if they are going to integrate new learning models and adequate coping strategies into their work in higher education.  相似文献   

When information wanted to be free: Discursive bifurcation of information and the origins of Web 2.0     

Eran Fisher 《The Information Society》2018,34(1):40-48

In the 1990s the aphorism “information wants to be free” reigned supreme, limiting our thinking in consequential ways. In actuality this aphorism was a fragment of a much more nuanced statement by Steward Brand, who also talked about “information wants to be expensive.” It seemed for quite a while that there was no resolution to the contradiction: information as both free and expensive. Eventually Web 2.0 resolved this contradiction by providing an architecture where information could be both free and expensive. Web 2.0 was not a product of technological advances: social media, wikis, big data platforms, and so forth. It was borne out of the understanding that free information on media platforms could yield profitable data on users. This article lays bare the discursive moves through which this understanding came about.  相似文献   

Cognitive behavioural strategies and anxiety in elite orienteers     

Yaakov Gal‐Or  Gershon Tenenbaum  Simon Shimrony 《Journal of sports sciences》2013,31(1):39-48

The primary purpose of this exploratory field study was to examine the use of cognitive behavioural strategies by highly skilled orienteers prior to and during competition. A secondary purpose of the study was to investigate whether differences in the level of qualification in orienteering is related to state anxiety. The subjects were divided into three classes with respect to their international and national records. The first two classes (A and B) were composed of international and national level athletes. The third class (C) included orienteers with unknown international records. Examination of the use of behavioural cognitive strategies during competition indicated that all orienteers reported a moderate use of mental imagery, above moderate use of inner talk and a focus of attention on present action rather than past or future. The other major findings were that prior to competition, superior orienteers reported use of higher self‐efficacy, more positive outcome expectations and more task demand orientation than their less successful counterparts. Top orienteers coped more successfully with pre‐competition anxiety by lowering their anxiety to a more moderate level prior to the actual performance.  相似文献   

Aerobic Capacity in Black Adolescent Girls     

James M. Pivarnik PhD  Janet E. Fulton  Wendell C. Taylor  Sharon A. Snider 《Research quarterly for exercise and sport》2013,84(2):202-207

Abstract

Our purpose was to determine the aerobic capacities (VO₂max) of a group of black female adolescents (age = 11.4 ? 15.8 years) randomly chosen from a single urban school. Of 91 girls selected, 64 performed an incremental treadmill running test to volitional exhaustion and achieved VO₂max as determined from expired gas measures. Other measures included height (m), weight (kg), and calf and triceps skinfolds (for % fat estimates). Girls were also asked whether they had achieved menarche. VO₂max averaged 37.3 ± 6.2 ml·kg^?1 ·min^?1 and was significantly correlated (r[62]) with height (?.32, p < .01), body mass index (?.63, p < .001), and % fat (?.65, p < .001) but not with age (?.16, p > .10). Postmenarchal girls were significantly taller and older than premenarchal girls. Contrary to previous studies, the girls' VO₂max values were not related to biological age. Our subjects' aerobic capacity values averaged 14% less than those of nonblack U.S. female adolescents previously reported in the literature. This difference in VO₂max was primarily a function of body weight. Study implications support the possibility that overweight in adult black women may originate prior to or during early adolescence. Future longitudinal studies should be designed to investigate the effects of aerobic fitness on cardiovascular risk factor reduction in black adolescent girls.  相似文献   

Physiological Responses to Maximal Treadmill and Handweighted Exercise     

David Shaun Bryant  Fredric L. Goss PhD  Robert J. Robertson  Kenneth F. Metz  David S. Feingold 《Research quarterly for exercise and sport》2013,84(3):300-304

Abstract

The purpose of this investigation was to compare the peak physiological responses among four protocols that employed different amounts of handweighted exercise in 16 males (aged 26.3 ± 4.1 years). The four protocols were (a) uphill treadmill running (UR; 3.36 m-s¹, 2.5% grade increase-3 min¹); (b) uphill treadmill walking while pumping 1.36kg handweights (HW) (UWHW; 1.79ms¹, 5.0% grade increase-3 min¹; (c) treadmill walking while pumping .91-kg HW (WHW; 1.79 m-s¹, 0% grade, .91kg HW increase-3 min¹); and (d) standing in place and pumping HW (SHW; arm work as described in WHW). It was hypothesized that the peak responses would be inversely proportional to the estimated muscle mass activated (i.e., UR = UWHW > WHW > SHW). Dependent variables included peak oxygen uptake (VO₂ peak), peak heart rate (HRpeak), peak ventilation (V_epeak), and peak respiratory exchange ratio (RERpeak). No differences were noted between UR and UWHW with respect to any of the dependent variables. All variables (except RERpeak) were greater (p < .01) in UR and UWHW than either WHW or SHW. RERpeak was greater (p < .01) in UR and UWHW than in WHW. VO₂peak and HRpeak were greater (p < .01) in WHW when compared to SHW. Mean VO₂peak was 97.5, 69.7, and 60% of UR for UWHW, WHW, and SHW, respectively. Therefore, walking and pumping handweights provides a maximal stimulus to the oxygen transport system.  相似文献   

The Validity of the Tritrac-R3D Activity Monitor for the Assessment of Physical Activity in Children     

Gregory J. Welk PhD  Charles B. Corbin 《Research quarterly for exercise and sport》2013,84(3):202-209

Abstract

The purpose of this study was to evaluate the validity of the Tritrac-R3D Activity Monitor, a new instrument designed to improve assessments of physical activity. Comparisons were made with a heart rate monitor and with a Caltrac Activity Monitor. Thirty-five children (ages 9–11 years) were monitored on 3 different school days with all 3 instruments. The Tritrac was moderately correlated with the heart rate monitor (r =.58) and highly correlated with the Caltrac monitor (r =.88). By taking advantage of the minute-by-minute timing capability of the Tritrac and the heart rate monitors, it was discovered, that the correlations between these instruments were highest during free play situations (lunch/recess, recess, after school) and were lower when activity was more limited (class time) or structured (physical education). The ability of the Tritrac to assess activity on a minute-by-minute basis may greatly enhance its overall utility.  相似文献   

Teaching within a Curricular Zone of Safety: School Culture and the Situated Nature of Student Teachers' Pedagogical Content Knowledge     

Inez Rovegno PhD 《Research quarterly for exercise and sport》2013,84(3):269-279

Abstract

The purpose of this paper is to continue the theoretical delineation of the nature of pedagogical content knowledge. Two student teachers were observed teaching an elementary games and high school sport unit and interviewed in depth about their lessons, biography, pedagogical content knowledge, and aspects of the school culture. Data were analyzed by constant comparison and analytic induction. Trustworthiness was established through member checks and triangulation. In the high school, both student teachers tried to use extending and refining tasks, as they had in the elementary school. But, when confronted with aspects of the high school culture, both retreated to a curricular zone of safety relying on application tasks. This zone, the defining aspect of their pedagogical content knowledge of teaching sports, emerged from and was constituted by the relations among goals, capabilities, teaching, inadequate pedagogical content knowledge, and aspects of the school culture. It is argued that situated and cultural orientations contribute to psychological orientations currently used to delineate pedagogical content knowledge. A curricular zone of safety is offered as a concept that helped account for the emergence and persistence of particular ways of knowing content.  相似文献