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991.
992.
张小强 《重庆大学学报(英文版)》2005,(3)
1 Introduction 1 Both economic literature and legal literature have focused a great deal of attention on the phenomenon of network effects, or network externalities: “markets in which the value that consumers place on a good increases as others use the good.”[1] Network effects have important implications for structure and competitiveness of underlying market, as well as for regulation policy making. In China, theoretical developments of the concept have been introduced, but it still remains… 相似文献
993.
Olsson A Ellsberg M Berglund S Herrera A Zelaya E Peña R Zelaya F Persson LA 《Child abuse & neglect》2000,24(12):1579-1589
AIMS: The objective was to describe experiences of sexual abuse occurring before 19 years of age among men and women in León, Nicaragua and to explore the possible association to later sexual risk behavior. METHOD: A sub-sample of literate urban men and women 25-44 years of age was selected from a representative sample of households in León. After an invitation to a public health event, 154 men (53% of the invited) and 213 women (66% of those invited) participated in giving written answers to an anonymous questionnaire. RESULTS: Twenty percent of men and 26% of women reported that they had experienced sexual abuse. Women had been victims of attempted or completed rape twice as often as men, 15% as compared to 7%. Thirty-three percent of the abuse towards boys and 66% of the abuse towards girls was committed by family members. Women who had experienced attempted or completed rape were more likely to later have had a higher number of sexual partners compared to non-abused or moderately abused women. CONCLUSIONS: Sexual abuse of children and adolescents of both sexes is common in Nicaragua. The results underscore the urgent need to address this serious problem more openly, and to make more resources available for the prevention of sexual abuse and for support to victims. 相似文献
994.
Tropp LR Erkut S Coll CG Alarcón O Vázquez García HA 《Educational and psychological measurement》1999,59(2):351-367
Most instruments designed to measure acculturation have relied on specific cultural behaviors and preferences as primary indicators of acculturation. In contrast, feelings of belonging and emotional attachment to cultural communities have not been widely used. The Psychological Acculturation Scale (PAS) was developed to assess acculturation from a phenomenological perspective, with items pertaining to the individual's sense of psychological attachment to and belonging within the Anglo-American and Latino/Hispanic cultures. Responses from samples of bilingual individuals and Puerto Rican adolescents and adults are used to establish a high degree of measurement equivalence across the Spanish and English versions of the scale along with high levels of internal consistency and construct validity. The usefulness of the PAS and the importance of studying acculturation from a phenomenological perspective are discussed. 相似文献
995.
996.
Gustavo Martínez-Sierra María del Socorro García-González 《International Journal of Science and Mathematics Education》2017,15(2):349-369
Little research in the field of Mathematics Education is directed towards emotions of students beyond their emotions in problem-solving. In particular, the daily emotions of students in a mathematics class have been sparsely studied in the field of mathematics education. In order to fill this gap, this qualitative research aims to identify high school students’ emotional experiences in the mathematics classroom and identify the appraisal structures that support such emotional experiences. Focus group interviews were carried out until theoretical saturation of the data was achieved (N = 53 in nine focus groups interviews). Data analysis is based on the theory of cognitive structure of emotions, which specifies eliciting situations for each emotion and the variables that affect intensity. The emotional experiences in this structure are as follows: satisfaction, disappointment, hope, fear, joy, distress, boredom, interest, pride, reproach, self-reproach, like and dislike. These results show that the emotional experiences of students are based on their appraisals of events, objects and agents in terms of a structure of goals. 相似文献
997.
Sigrún Hulda Steingrímsdóttir Sigríður Halldórsdóttir 《International Journal for Educational and Vocational Guidance》2016,16(2):251-274
The purpose of this phenomenological study was to explore people’s experience of reduced working capacity and their encounters with professionals in that life situation. We collected data through in-depth interviews with eight individuals. The main finding of the current research is how illness and accident impairing work capacity exacerbate vulnerability during the recovery process as people experienced uncertainty, depression, anxiety, social isolation, fear and stress. We conclude that counseling and support from respectful, professional, caring and human professionals is extremely valuable in such a context. 相似文献
998.
新时代的批判媒介和文化研究 总被引:2,自引:0,他引:2
本文从历史的角度分析了批评性媒介素养在不同历史阶段的关注重点,并辅以事例着重阐释了如何利用分析方法使批判性素养的理论与实践相结合,从而提高学生的批判性媒介素养,特别是随着多种新媒体的出现,更需要在文化研究的关照下关注新的媒介素养问题。 相似文献
999.
Rafael Burgueño Alvaro Sicilia Jesús Medina-Casaubón Manuel Alcaraz-Ibañez María-Jesús Lirola 《Journal of Experimental Education》2019,87(1):89-100
Our objective was to test the factorial validity of the different versions (TSES-24, TSES-12, and TSES-11) of the Teacher's Sense of Efficacy Scale in Spanish preservice teachers'. The participants were 358 preservice teachers. The confirmatory factor analysis showed inadequate fit indexes for both TSES-24 and TSES-12 but adequate fit indexes for TSES-11, which was invariant across gender. The reliability analysis showed appropriate values. The global factor for teachers' sense of efficacy and the three factors that constitute it positively predicted intrinsic motivation and life satisfaction. The global factor for sense of efficacy and the classroom management and student engagement factor negatively predicted amotivation. The results support the use of the TSES-11 three-factor model, rather than TSES-24 or TSES-12, for Spanish preservice teachers. 相似文献
1000.
María Luz Callejo 《Educational Studies in Mathematics》1994,27(1):1-33
Resumé Cet article voudrait aborder un thème précis: l'emploi des représentations graphiques dans les comportements de recherche de problèmes de type Olympiades. Pour ce faire, nous utiliserons deux voies complémentaires: l'étude des copies des participants aux Olympiades Mathématiques Espagnoles (OME) et l'observation des membres d'un Club mathématique constitué dans le but de développer notre recherche. L'analyse des copies des OME a montré l'importance du choix et de l'interprétation de la première repésentation graphique dessinée, pour la réussite ou l'échec de la résolution d'un problème posé, c'est pourquoi nous avons essayé d'apprendre aux participants du Club mathématique à réfléchir aux stratégies de résolution et à réagir de manière critique contre les réflexes dûs aux conditionnements scolaires.
Graphic representations in problem solving: a training program for students on a Mathematical Club
The article looks at the use of graphic representation in problem-solving tasks of the type set in the Olympiads from two different points of view. Firstly, an analysis of the answer sheets of participants in the Spanish Mathematical Olympiads (OME), and secondly the observation of the members of a Mathematics Club brought together to help with the investigation. The analysis of a sample of answer sheets shows that the choice and interpretation of the first graphic representation drawn in the problem-solving process plays a decisive role in the discovery of the solution. As a result, a training programme has been established for the members of the Mathematics Club to help them consider the strategies used in problem-solving tasks and to help them approach these tasks in a more critical manner than is expected in a normal school environment.相似文献