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51.
Information and communication technologies hold much promise for use in education in developing countries. This study reports on an evaluation conducted on the introduction of computers in the delivery of the mathematics curriculum in one of the provinces of South Africa. Although the request was for an outcome evaluation very early in the implementation of the program, it was tailored in such a way as to fulfill a more formative role. Despite substantial variability in implementation, and in most cases with very weak exposure of the learners to the intervention, sufficient evidence emerged to indicate that this mode of curriculum delivery may be effective. Improvement in mathematics performance was related to a range of variables: some concerned classroom teaching practices, some referred to social differences between the learners, and some to the specific intervention. The strongest of these predictors in the sample was the strength of the intervention: the more time learners spent on using the software to study mathematics, the more improvement they showed from 1 year to the next in their performance in the subject. 相似文献
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Both a resource-based view and transaction cost economics perspective point to firms deciding to either make-or-buy an input. In practice, this tends to result in low-skill functions being outsourced while those of higher value are retained. In this article, we explore a situation counter to the prevailing literature. We study a highly creative industry – fashion – and discover the relationship between core competence and outsourcing is not as simple as previously conceptualised. Creativity, fashion's assumed competency, rather than being guarded within a firm is instead often outsourced or borrowed. More mundane tasks such as marketing and logistics are what each firm rather develops. The effects of resulting co-dependencies are mapped and analysed in order to offer managerial insight as well as contribute to discussion within the outsourcing and resource based literatures. 相似文献
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This article explores the importance of new forms of governance in active labour market policies (activation) in two countries: Denmark and the Netherlands. Drawing on research with key stakeholders in these countries, we analyse how new governance, and particularly processes of contracting-out and localization, have found expression in recent reforms to activation. We conclude that localization and contracting-out may have a future role to play in the development of more locally responsive and individually focused services. But both countries have encountered problems in promoting joined-up services through local jobcentres, while contracting-out has not always led to the tailored, individually focused services envisaged by policy-makers. In both countries, there are also concerns that the restriction of the Public Employment Service to a 'gatekeeping and signposting' role will lead to inconsistencies in the quality of services, exposing the most disadvantaged to greater social risk. 相似文献
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Colin Chen 《统计学通讯:理论与方法》2013,42(5-6):1257-1271
Following the extension from linear mixed models to additive mixed models, extension from generalized linear mixed models to generalized additive mixed models is made, Algorithms are developed to compute the MLE's of the nonlinear effects and the covariance structures based on the penalized marginal likelihood. Convergence of the algorithms and selection of the smooth param¬eters are discussed. 相似文献
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