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41.
This study examined the relationships between primary schoolteachers’ attitudes, efficacy beliefs and perceived support and their behavioural intentions in regard to teaching students who display inappropriate behaviour in regular classrooms. Ajzen’s Theory of Planned Behaviour (TPB) was used to guide the conceptual framework of the study. A total of 1090 teachers from 263 government primary schools located in urban, suburban and rural areas of one educational region of Bangladesh were surveyed. Hierarchical regression was utilized to analyse data. Results revealed that attitudes and efficacy beliefs were significant predictors of teachers’ behavioural intentions in teaching students who exhibit inappropriate behaviour. The three predictive variables (attitudes, efficacy beliefs and perceived support) accounted for 59% of the variance in teachers’ intentions. The findings of the study indicate possible implications for policymakers and teacher educators in Bangladesh.  相似文献   
42.
Lectins, a group of specific glycoproteins present in animal as well as plant cells, are used as differentiating markers to study cancers and metastatic cell lines. This property of lectins depends on the process of cellular glycosylation. Glycosylation of some of the extracellular membrane proteins and lipids maintains the cell/cell and cell/matrix interactions. Chemical alterations in glycosylation play an important role in the metastatic behavior of tumor cells. Carbohydrate residues of the membrane glycoproteins can be detected using lectins due to their binding specificity to carbohydrates. Lectins, therefore have gained an importance in the field of cancer research. Galectins, a specialized group of lectin like proteins that are Ca+ independent and galactoside binding, are also considered as differentiation markers in some specific cancers like the carcinomas of thyroid. Thus the use of lectins and galectins to identify specific carbohydrates present on cell surface help in invasion and metastasis processes.  相似文献   
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44.
ABSTRACT

Subject Librarians play an important role in an academic library, a role which it is crucial to study. There have been many published studies that have highlighted the lack of evidence on the competencies of Subject Librarians. This paper discusses the challenges faced by the Subject Librarians of the Universiti Putra Malaysia Library. The aim was to gather information from published documents regarding the experiences and practices carried out in efforts to increase the competencies of Subject Librarians. The outcomes from this conceptual paper serve as an important instructional tool for the training and development of Subject Librarians. The results might also provide guidance for the implementation of a similar program or relevant problem-solving plans for other libraries in the region.  相似文献   
45.
This article reports on part of a study conducted to collate the policies and practices of two successful distance education providers of the developed world with those of a provider in Bangladesh in order to inform a culturally appropriate distance education framework for a developing country. This article also describes an innovative theoretical model, Adapting Structuration Theory In Distance Education, conceptualized as part of a broader study, to address the underlying issues and to generate propositions for the framework.  相似文献   
46.
This paper addresses the output regulation problem for a class of preview control systems, and derives a state feedback law which suppresses the steady-state error caused by the excitation from polynomial or sinusoidal exogenous inputs. Recently, the output regulation condition for the broader class of distributed parameter systems is characterized via the operator regulator equation. We show that a solution of the operator regulator equation specialized to the preview control system is obtained by solving the matrix regulator equation, and provide the state feedback law which attenuates the transient error optimally with respect to an LQ (Linear Quadratic) performance index.  相似文献   
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This study surveys 200 Malay students enrolled in three Chinese primary schools in relation to three issues, i.e., parental choice of schooling, learning processes and inter-ethnic friendship patterns. The three issues are explored through a combination of quantitative and qualitative research methodologies. Parental expectations for their children's learning and academic outcomes emerge as the dominant factor influencing Malay enrollment in Chinese primary schools. Unfortunately, the Malay students are unable to meet these high expectations due to learning difficulties that stem from the lack of proficiency in the Chinese-medium of instruction, despite intervening measures by the school authorities. Their learning difficulties are also compounded by the lack of parental inputs as well as the limited use of code-switching by teachers. Meanwhile, the fostering of inter-ethnic friendships is impeded by ethnic differences, the rise of Islamic awareness and the increased numerical size of Malay students. However, there is a willingness among the Malay students to interact with the Chinese students through task-related activities, indicating that the fostering of inter-ethnic friendships needs to be guided by a convergence of interests.  相似文献   
49.
Abstract

The limited effectiveness and fiscal unsustainability of professional-led public sector extension systems in developing countries have aroused considerable interest in Farmer-led Extension (FLE) approaches in the recent decades. A key challenge facing these initiatives is a lack of sustainability of the farmer groups developed through project or programme assistance. This not only makes FLE initiatives costly, but also creates dependency among farmers. Despite this, the knowledge of what can make externally-initiated FLE groups sustainable is scant and largely anecdotal. In this paper we provide an empirically-drawn and theoretically-informed framework to fill this knowledge gap.

The framework is based on a comparative case study of six non-sustained and four sustained FLE groups initiated through an innovative extension reform project in Bangladesh and a comparison of the results with the theories of collective action.

We have identified four sets of inter-related factors called ‘capitals’ affecting group sustainability: ‘financial capital’ accumulated through group-based microcredit activities, an effective governance mechanism called ‘institutional capital’ devised by the members themselves, good quality group leaders and facilitators called ‘human capital’, and past relations of exchange, reciprocity, trust and respect called ‘social capital’ among members and between members and professional facilitators. While microcredit can benefit sustainability, it suits women rather than men farmers. Good quality leaders and facilitators are not only technically competent, but also fair, innovative, tenacious, self-sacrificing, trustworthy, honest, and sincere. All forms of social capital are not useful for group sustainability and social capital can make a positive impact only when the other types of capital—human and institutional—are present within a group.

To improve group sustainability, FLE programmes should take a holistic approach and address the four kinds of capitals proposed in this paper. Key strategies may include: combining extension (information or advisory functions) with economic activities but avoiding a one-size-fits-all solution, recruiting group leaders and facilitators by going beyond technical considerations (e.g. taking into account the personality traits identified in this study), adopting a bottom-up approach in devising group rules and regulations, and taking into account both the positive and negative aspects of social capital.

The originality of our research lies in the explanatory framework that we provide in this paper. Our study also contributes to the intellectual debates on social capital by exhibiting the dual roles that social capital plays and its complex interrelationships with other forms of capital.  相似文献   
50.
Abstract

Purpose: This article explores the impacts of action learning on graduates’ abilities to use interdisciplinary knowledge to solve problems, practice teamwork on the job and become change agents through study in two MSc programmes at the Norwegian University of Life Sciences (UMB).

Design/methodology/approach: Electronic questionnaires were sent to students who had graduated from the Agroecology and Management of Natural Resources and Sustainable Agriculture (MNRSA) MSc programmes between 2000 and 2007.

Findings: Both study programmes encouraged students to become change agents promoting sustainable practices through application of knowledge and methods from natural and social sciences. Agroecology graduates applied a greater range of creative research methods, and improved their capacity for holistic and systems thinking more than MNRSA graduates, while the latter were more skilled in building consensus. Graduates from both programmes increased their abilities to create a positive team environment, bring people together to express their views and take multiple views into consideration when making decisions.

Practical implications: This survey documents how action learning develops students’ skills and knowledge to handle complex social and environmental challenges and become change agents.

Originality/value: In the context of increasing challenges in agroecology and natural resource management the findings on how to translate knowledge into action are important for teaching/learning institutions dealing with education for sustainable development.  相似文献   
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