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21.
Abstract

Youth have astute observations about site-specific personal and environmental factors that contribute to littering and marine debris, and they have a strong potential to act as change agents in communities. Interactions with youth in Pinellas County Florida add insights into a growing body of research on environmental education and marine debris prevention. This study assessed perceptions of marine debris and littering behaviors through group discussions with middle school and high school students (N = ~44), evaluations at summer camp programs (N = ~31) and pre- and post-assessments of environmental field trips (pre-assessment N = ~120; post-assessment N = ~140). Youth showed high initial awareness of the effects of marine debris on the environment but showed less understanding about the role of watersheds and biodegradation in marine litter issues. A majority of youth attributed others’ littering behavior to dispositional factors, like laziness, while attributing their own littering to situational factors, like poorly placed bins. Student observations of educators and parents also influenced littering behaviors and willingness to act. To reduce littering, education and outreach programs need to (1) provide opportunities for ongoing assessment of complex marine debris topics, (2) align visual and written or verbal messages, (3) reduce actor/observer bias related to littering behaviors, and (4) support adult role models.  相似文献   
22.
E-Government adoption and implementation has gained noticeable momentum across many developed and developing economies. Nevertheless, transitioning from the “electronic” to the stage of “transformational” domain – coined as t-Government – is posing the greatest challenge of how government services respond to changes in the broader economy and society. Despite considerable investments and the wide use of Information and Communications Technology (ICT), research literature on e-Government suggests that government services have yet to reach the full potential of seamless integration, where all transactions are completed electronically. Through a detailed analysis of the extant e-Government literature and a case study based empirical research, this paper explores the domain of e-Government in identifying the possible reasons for this potential shortfall in achieving full integration. Furthermore, the paper intends to highlight an aspect of complexity surrounding crossing the integration gap as the authors denote by “eChasm” in the e-Government conceptual model that leads to transformation. In addition, it focuses on radical change through Business Process Re-engineering (BPR) and the call for strategic style of leadership, for cross-agency collaboration leading to a successful realisation of transformational government (t-Government). It is interesting to note that researchers and public sector leaders have started to realise that implementing and managing the transformation of public services, copiously satisfying the users and stakeholders, is a task of multi-dimensional complexity.  相似文献   
23.
The question of education in India cannot be properly discussed without referring to its socio-linguistic context. This paper provides background information on the linguistic profile of India. The term minorities in the Indian context is defined, and the protection offered to linguistic minorities in the Indian Constitution is examined. A discussion of language policy in Indian education follows in which the recommendations of the different education commissions are analysed. The important issues covered include: the number of languages that are taught, the medium of instruction, and the educational policies regarding speakers of minority languages. The article also discusses different language movements and their impact on Indian education.
Zusammenfassung Die Frage der Bildung in Indien kann ohne einen Bezug zum sozial-linguistischen Kontext nicht hinreichend diskutiert werden. Dieser Artikel liefert Hintergrundinformationen zum linguistischen Profil Indiens. Der Begriff Minderheiten wird im Zusammenhang mit Indien definiert und der den Sprachminderheiten in der indischen Verfassung zugestandene Schutz untersucht. Anschließend wird die Sprachpolitik im indischen Bildungssystem angesprochen und die Empfehlungen unterschiedlicher Bildungskommissionen werden analysiert. Die wesentlichen abgehandelten Themen beinhalten folgende Bereiche: die Anzahl der unterrichteten Sprachen, die Unterrichtssprache und die Bildungspolitik hinsichtlich der Sprachminderheiten. Der Artikel befaßt sich außerdem mit unterschiedlichen Sprachbewegungen und ihrem Einfluß auf die indische Bildung.

Resumen La cuestión de educación en la India no podrá discutirse adecuadamente sin hacer referencia a su contexto sociolingüístico. Este trabajo provee informaciones de fondo sobre el perfil lingüistico de la India. Define el término de minorias en el contexto indio y examina la protección que la Constitución de la India ofrece a las minorías lingüísticas. A ello se agrega una discusión de la política lingüística en la educación india, en la que se analizan las recomendaciones de las diferentes comisiones de educación. Fntre otras cosas, los puntos tratados son: el número de lenguas que se enseñan, el medio de instrucción, y las políticas de educación referentes a las personas que hablan lenguuas minoritarias. El artículo también trata los diferentes movimientos lingüísticos y sus impactos en la educación en la India.

Résumé On ne peut vraiment débattre la question de l'éducation en Inde sans la replacer dans son contexts socio-linguistique. Cet article fournit une information de base sur le profil linguistique de l'Inde. Il y définit le terme de minorités dans le contexte de ce pays et étudie la protection que la Constitution indienne assure aux minorités linguistiques. Il s'ensuit un exposé de la politique linguistique dans l'enseignement de ce pays, incluant une analyse des recommandations des différentes commissions pédagogiques. Les points essentiels traités portent sur le nombre de langues enseignées, la langue d'enseignement et les politiques pédagogiques touchant les locuteurs de langues minoritaires. L'article analyse enfin les différents mouvements linguistiques et leur influence sur l'éducation en Inde.

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24.
This study explored Saudi elementary school science teachers’ beliefs about the process of teaching and learning science. This involved the exploration of their views about the new Saudi science curriculum, which emphasizes critical thinking and problem solving. Comprehensive interviews were held in 8 schools with 4 male and 6 female—2 of whom were from private schools—science teachers. The interviews were analyzed to identify and assess common themes among their beliefs as well as associations between their beliefs and self-reported classroom practices. The findings revealed perceptual differences between teaching the old and the new science curricula and also that these science teachers were challenged by available class time, the student–teacher ratio, and the lack of laboratory space, equipment, and administrative support. It appears that the more interactive and group-oriented activities that formed the instructional foundation of the new curriculum have increased enjoyment for teaching science and led students to better comprehension of scientific concepts.  相似文献   
25.
With the rapid advancement of information and communication technologies, e-learning has gained a considerable attention in recent years. Many researchers have attempted to develop various e-learning systems with personalized learning mechanisms for assisting learners so that they can learn more efficiently. In this context, curriculum sequencing is considered as an important concern for developing more efficient personalized e-learning systems. A more effective personalized e-learning recommender system should recommend a sequence of learning materials called learning path, in an appropriate order with a starting and ending point, rather than a sequence of unordered learning materials. Further the recommended sequence should also match the learner preferences for enhancing their learning capabilities. Moreover, the length of recommended sequence cannot be fixed for each learner because these learners differ from one another in their preferences such as knowledge levels, learning styles, emotions, etc. In this paper, we present an effective learning path recommendation system (LPRS) for e-learners through a variable length genetic algorithm (VLGA) by considering learners’ learning styles and knowledge levels. Experimental results are presented to demonstrate the effectiveness of the proposed LPRS in e-learning environment.  相似文献   
26.
肘关节屈伸肌群等速肌力的测定与分析   总被引:8,自引:0,他引:8  
为了解肘关节屈、伸肌群在不同收缩方式、不同运动速度、不同关节角度时力矩变化情况。为运动医学、临床医学、康复医学的实践提供参考,用BIODEX等速测力及康复系统,测定了北京体育大学体育生物科学系9名男生肘关节屈、伸肌群静力和等速向心、等速离心不同运动速度的肌力。结果为:肘关节屈、伸肌群最大力矩与肌肉收缩方式的关系符合一般规律,即离心收缩大于静力收缩,静力收缩又大于向心收缩。肘关节屈、伸肌群最大力矩,在收缩速度为60°~120°/s范围内.无明显差异,可选为慢速测试速度。如测定快速肌力,速度至少提高到180°/s以上。肘关节屈/伸肌群力矩比率均值>1,即屈肌肌力大手伸肌肌力,但个体差异较大。并根据肘关节屈、伸肌群力矩、最大力矩与关节角度的关系,提出进行直立位屈肘力量练习时,可取肩关节屈曲10°~20°用的位置;进行伸肘肌群力量练习时,可采取直立位头后上举的抗阻练习。  相似文献   
27.
ABSTRACT

The conceptualization of destructive leadership has received increasing attention in recent times. Accordingly, researchers have developed a theoretical model of destructive leadership that highlights two manifestations as follows: (1) leading followers towards goals that contradict the organization’s interests and (2) the use of harmful methods in leading followers. The two manifestations of destructive leadership point to the concept being multidimensional. However, researchers rarely investigate the dimensionality of destructive leadership when measuring the concept in general and in instructor–student relationships. Moreover, the most prominent measure of destructive leadership fails to capture its two manifestations adequately. To address the apparent mismatch between the theory and measurement of destructive instructor-leadership, we enhance an existing measure of destructive leadership. Using a sample of 174 students from the U.K., the findings indicated that the two manifestations of destructive instructor-leadership can be measured by 13 items, and was composed of three dimensions including, irresponsibility, victimization and callous communication. These findings along with limitations and suggestions for future research are discussed.  相似文献   
28.
Abstract

In this qualitative comparison study, we examine the perceived efficacy of using personalized learning (PL) activities based on PL principles to support students’ psychological need satisfaction and intrinsic motivation in an online course using a traditional one-size-fits-all model. We apply self-determination theory as a framework to investigate students’ perceptions of their psychological need satisfaction (e.g., competence, autonomy, and relatedness) and relation to students’ intrinsic motivation when enrolled in an online course implementing PL principles. Overall, the study results showed the potential of implementing personalized learning principles in online courses to support students’ psychological need satisfaction (e.g., autonomy and competence) and intrinsic motivation. Furthermore, students perceived the PL interventions as engaging and effective in meeting their learning needs and interests.  相似文献   
29.
Literature on Web 2.0 experiences of higher education faculty in developing countries such as Pakistan is very limited. An insight on awareness and practices of higher education faculty with these tools can be helpful to map strategies and plan of action for adopting latest technologies to support teaching–learning processes in higher education of such countries. This survey study was aimed to examine the competence and practices of higher education faculty in Pakistan with Web 2.0 technologies such as blogs, Wikis, Google Docs, Skype, Flickr, YouTube, and social networks. The study was also focused to look for what type of role faculty play while using these tools; and to find whether any significant differences in terms of age, gender, or academic discipline exist in competence and usage of these tools by the faculty. The data were collected from a sample of 246 university teachers in the spring 2014 semester. The findings of the study indicated that faculty participants reported to use Web 2.0 social tools more frequently than instrumental tools. Similarly, their competence with social tools was higher than their competence with instrumental tools. Additional results indicated that their competence with Web2.0 tools significantly differed with respect to their age, gender, and academic disciplines.  相似文献   
30.
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