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Mobile agent technology has drawn a tremendous amount of attention from researchers in distributed computing recently as it promises to provied an elegant and efficient way of solving complex distributed problems,as well as offering a new approach to human-computer-interaction.In mobile agent systems,the mobile agent travels autonomously from one computer to another within the agent enabled networks,executes itself in the agent execution environment,collects useful information and makes its own decision on behalf of its owner.This mobility nature of mobile agent demands its unique name in the whole network otherwise it gets lost or conflicts with other mobile agent having same name.This paper proposes a naming scheme which promises a unique name for a mobile agent within that network. 相似文献
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Any policy reform in education is highly effective when it is planned and implemented ‘holistically’ and yet, it is the most challenging way forward. Many countries in Asia have reformed their English language policies and syllabi in the last two decades due to the increasing value of the language worldwide. Motivated by a ‘communicative approach’ to English language teaching, Bangladesh was one of the countries that launched such a reform in the 1990s. However, this reform has been criticised for imposing the changes on teachers without preparing them sufficiently. More importantly, there is limited evidence as to how much the secondary English language assessment system is aligned with the changes introduced in the curriculum. In order to explore this gap, a medium-scale study was conducted in 38 secondary schools in Bangladesh, following a mixed methods approach. The findings highlighted a ‘mismatch’ between the intended English language learning outcomes and current assessment practices, including the resulting challenges faced by the teachers. This paper argues that language education reform is likely to fail if the assessment system is not aligned with the curriculum. 相似文献
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Uma Pradhan Shivana Shrestha Karen Valentin 《Globalisation, Societies & Education》2019,17(5):561-573
ABSTRACTCommunity-based school governance has been promoted as a popular policy for decentralisation of education around the world. Within this policy, schools are expected to create institutional spaces such as School Management Committees with an assumption of reciprocal relation between school and community. This article questions the simplistic assumption through an ethnographic study of community-school relationship in Nepal. While these relationships may conflict with the kind of reciprocity assumed in school governance policies, we argue that this disjunctured reciprocity, firstly, reflects the gap between policy blueprints and action, and, secondly, reveals the competing logics of community-school relations which remain unacknowledged. 相似文献
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A. M. R. Chowdhury Linda Ziegahn Najmul Haque Gajendra L. Shrestha Zahin Ahmed 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1994,40(6):437-454
Following the 1990 World Conference on Education for All in Jomtien, Thailand, many developing countries are making efforts to achieve basic education for all by the year 2000. However, when it comes to measuring educational progress, there are few methodologies that can overcome the many problems and controversies in this area. This paper describes a serviceable methodology for measuring basic education (competencies in reading, writing and arithmetic, as well as selected life skills), which has proven to be simple, inexpensive and rapid. This approach, termed the Assessment of Basic Competencies (ABC), has been tested in Bangladesh on 2,100 children between the ages of 11 and 12. The results are discussed here. This methodology may be of use to education programme managers in other developing countries.
Zusammenfassung Nach der Weltkonferenz über Bildung für Alle 1990 in Jomtien, Thailand, bemühen sich viele Entwicklungsländer um eine Grundbildung für alle bis zum Jahr 2000. Wenn man jedoch die Methoden zur Bemessung der Leistungen der Schüler betrachtet, gibt es nur wenige Methodologien, die die zahlreichen Probleme und Kontroversen auf diesem Gebiet bewältigen können. Dieser Artikel beschreibt eine praktische Methodologie zur Bewertung der Grundbildung (Lese- und Schreibfähigkeiten, arithmetische Fähigkeiten sowie ausgewählte zum Leben notwendige Fahigkeiten), die sich als einfach, preiswert und schnell erwiesen hat. Dieser Ansatz wurde in Bangladesh an 2.100 Kindern zwischen 11 und 12 Jahren getestet. Das Ergebnis wird in diesem Artikel erortert. Diese Methodologie könnte Bildungsprogrammleitern in anderen Entwicklungsländern von Nutzen sein.
Résumé En réponse au Congrès Mondial sur l'Education pour Tous qui a eu lieu en 1990 à Jomtien, Thaïlande, de nombreux pays en voie de développement multiplient leurs efforts pour réaliser l'éducation de base de tous d'ici l'an 2000. Quand il s'agit pourtant d'évaluer le progrès pédagogique, rares sont les méthodologies pouvant faire face aux nombreux problèmes et controverses existant dans ce domaine. Cet article décrit une méthode efficace pour évaluer l'éducation de base (compétences en écriture, lecture et arithmétique de même que certaines aptitudes à la vie pratique), qui s'est révélée simple, économique et rapide. Ce procédé, appelé Evaluation des Compétences de Base (ABC — Assessment of Basic Competencies), a fait l'objet d'un essai au Bangladesh auprès de 2100 enfants entre 11 et 12 ans, dont les résultats sont discutés ici. Cette méthode pourrait être intéressante aux organisateurs de programmes d'éducation dans d'autres pays en développement.相似文献
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Supporting undergraduate students with their academic literacies has recently been a major focus in higher education in the UK. This paper explores the value of tutor mediation in the context of academic writing development among undergraduate business studies students in open and distance learning, following the dynamic assessment (DA) approach that has been developed within Vygotskian sociocultural theory of learning (Vygotsky, 1978). DA is an assessment approach that blends instruction and assessment. The data, which came from a pilot study of a larger research project, consisted of text-based interaction between a tutor–researcher and two business studies students across various drafts of two assignments in line with the DA approach. This interaction was mediated by computers mainly through emails. The analyses of such interaction suggest that DA can help to identify and respond to the areas that students need the most support in (in this study, managing information flow). Finally, we argue that a learning theory-driven approach such as DA can contribute to undergraduate students’ academic writing development by responding to their individual needs. 相似文献
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There has been a steady interest in investigating the validity of language tests in the last decades. Despite numerous studies on construct validity in language testing, there are not many studies examining the construct validity of a reading test. This paper reports on a study that explored the construct validity of the English reading test in the Nepalese school leaving examination. Eight students were asked to take the test and think-aloud, followed by retrospective interviews. Additionally, seven experts were asked to make judgments regarding the skills tested by the test. The findings provide grounded insights into students’ response behaviors prompted by the reading tasks, and indicate some threats to the construct validity of the test. Additionally, the study reports a low level of agreement among the experts, and a big gap between the skills used by the students and the skills that the experts thought were being examined by the test. 相似文献
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基于图像分解的分层图像修复 总被引：1，自引：0，他引：1
We propose a layered image inpainting scheme based on image decomposition.The damaged image is first decomposed into three layers:cartoon,edge,and texture.The cartoon and edge layers are repaired using an adaptive offset operator that can fill-in damaged image blocks while preserving sharpness of edges.The missing information in the texture layer is generated with a texture synthesis method.By using discrete cosine transform(DCT)in image decomposition and trading between resolution and computation complexity in texture synthesis,the processing time is kept at a reasonable level. 相似文献
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Murari Suvedi David Krueger Anil Shrestha Dixie Bettinghouse 《The Journal of environmental education》2013,44(2):16-21
Abstract Knowledge and perceptions of Michigan residents about groundwater were assessed so that a comprehensive educational program could be developed and baseline information established to document the program's impact over time. Data were collected from 663 residents in urban, rural, and farm households. Results indicated that knowledge about groundwater was moderate and that a statewide educational campaign on facts about groundwater was necessary. People perceived that land use practices affected groundwater quality at the national, state, and county levels but not at their household level. Significant differences were found among urban, rural, and farm residents and between farmers and nonfarmers in their perceptions of the effects of land use on groundwater quality. 相似文献
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中国-喜玛拉雅特有属——蓝钟花属的分类修订 总被引：2，自引：0，他引：2
Krishna K. Shrestha 《中国科学院研究生院学报》1997,35(5):396-433
Cyananthus Wallich ex Bentham, the only genus of Campanulaceae with superior ovary, is revised to clarify infrageneric relationships and phylogeny of the genus. Evidence obtained from the comparative gross morphology, anatomy, palynology, and karyomorphology recommends a new infrageneric classification of the genus, recognizing 23 species, belonging to two subgenera, four sections and four subsections. One subgenus(Subgen. Micranthus), one section(Sect. Suffruticulosi) and two subsections(Subsect. Flavi and Subsect. Lichiangenses)are described as new taxa. New combinations at sectional(Sect. Annui) and subsectional(Subsect. Stenolobi) ranks are also proposed. The genus Cyananthus is strictly distributed in the high mountains of China(Xizang, Yunnan and Sichuan), extending to Bhutan, Nepal and India(Kumaon-Garhwal, Assam and Sikkim), with altitudinal ranges from 2500～5300 m. It is observed that 13 species are endemic to SW China and only three species are endemic to the Himalayas(two species in Nepal and one to NW India). It is evident that Cyananthus is one of the most primitive genera of Campanulaceae and within the genus, subgenus Cyananthus(Sect. Stenolobi) is more primitive than the subgenus Micranthus. It is also suggested that SW China(most probably Yunnan) is the center of origin of Cyananthus, considering the occurrence of as many as 20 species of Cyananthus, representing several primitive taxa and many endemic species. 相似文献
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