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Minerva - This paper aims to explore disciplinary variation in valuation practices by comparing the way research groups accumulate credibility across four epistemic cultures. Our analysis is based... 相似文献
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In 1993 a new subject, Technology, was introduced in all Dutch junior secondary schools. The results of an implementation study (part of the OECD/SMTE case studies project) are described inthe first part of the paper. Technologyclasses in three case-study schools are characterized and pupils' attitudes towards technology described. Pre-vocational schools emphasized practical activities more than other types of secondary schools. Introducing technology imposed a heavy teaching load and there were, as yet, no satisfactory textbooks. Little co-operation with other subjects had been achieved. The second part of the paper elaborates on the problems in the co-operation between science and technology teachers. Some recommendations for improved co-operation are offered. 相似文献
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Narrowing down the conditions for extinction of Pavlovian feature-positive discriminations in humans
Priya R. van Vooren Mathijs Franssen Tom Beckers Dirk Hermans Frank Baeyens 《Learning & behavior》2012,40(4):393-404
The aim of this study was to delineate the minimal conditions for extinction of Pavlovian modulation in humans. Previous experiments at our lab showed that, after X ? A+/A?C acquisition training, X?C trials did not extinguish differential X ? A+/A?C responding, while X ? A?C trials did. Additionally, X ? A?C extinction training seemed only to extinguish differential X ? A+/A?C responding, while leaving differential responding on a concurrently trained Y ? B+/B?C discrimination intact. It thus seemed that the X ? A+/A?C discrimination can only be extinguished by X ? A?C extinction trials. (Rescorla, Journal of Experimental Psychology: Animal Behavior Processes 12, 16?C24, 1986), on the other hand, found that the minimal conditions for extinction were broader in pigeons: Namely, he found that an acquired X ? A+/A?C discrimination could be extinguished by presenting the original feature X in combination with a different target (B) that was minimally trained as an exciter. We thus wanted to examine whether this was also the case in humans. We found that nonreinforced X ? B?C presentations did not abolish discriminative X ? A/A responding when target B was a nonreinforced stimulus. Nonreinforced X ? B?C trials did extinguish the X ? A+/A?C discrimination when target B had previously been trained as a target for modulation (X ? B+/B?C or Y ? B+/B?C training) or as a reinforced exciter (B+). Our results thusf parallel and extend those in nonhuman animals (Rescorla, Journal of Experimental Psychology: Animal Behavior Processes 12, 16?C24, 1986). 相似文献
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We propose an operationalization of the rural and urban analogy introduced in Becher and Trowler (2001). According to them, a specialism is rural if it is organized into many, smaller topics of research, with higher author mobility among them, lower rate of collaboration and productivity, lower competition for resources and citation recognitions compared to an urban specialism. It is assumed that most humanities specialisms are rural while science specialisms are in general urban: we set to test this hypothesis empirically. We first propose an operationalization of the theory in most of its quantifiable aspects. We then consider specialisms from history, literature, computer science, biology, astronomy. Our results show that specialisms in the humanities present a sensibly lower citation and textual connectivity, in agreement with their organization into more, smaller topics per specialism, as suggested by the analogy. We argue that the intellectual organization of rural specialisms might indeed be qualitative different from urban ones, discouraging the straightforward application of citation-based indicators commonly applied to urban specialisms without a dedicated re-design in acknowledgement of these differences. 相似文献
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Over the past decades, science funding shows a shift from recurrent block funding towards project funding mechanisms. However, our knowledge of how project funding arrangements influence the organizational and epistemic properties of research is limited. To study this relation, a bridge between science policy studies and science studies is necessary. Recent studies have analyzed the relation between the affordances and constraints of project grants and the epistemic properties of research. However, the potentially very different affordances and constraints of funding arrangements such as awards, prizes and fellowships, have not yet been taken into account. Drawing on eight case studies of funding arrangements in high performing Dutch research groups, this study compares the institutional affordances and constraints of prizes with those of project grants and their effects on organizational and epistemic properties of research. We argue that the prize case studies diverge from project-funded research in three ways: 1) a more flexible use, and adaptation of use, of funds during the research process compared to project grants; 2) investments in the larger organization which have effects beyond the research project itself; and 3), closely related, greater deviation from epistemic and organizational standards. The increasing dominance of project funding arrangements in Western science systems is therefore argued to be problematic in light of epistemic and organizational innovation. Funding arrangements that offer funding without scholars having to submit a project-proposal remain crucial to support researchers and research groups to deviate from epistemic and organizational standards. 相似文献
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As the number of globally mobile students has expanded, governments are assumed to be consistently and intentionally competing for talent, in what has been called a “great brain race”. While the notion of competition has become dominant, there is little evidence on long-term policy dynamics in this field, not only across jurisdictions but also over time. We seek to address this gap in this paper through a longitudinal analysis of the politics and public policies impacting international students in four major recruiting countries—Australia, Canada, England and the USA. Through this comparative analysis of the period 2000 to 2016, we demonstrate that international student numbers across the jurisdictions have grown steadily but that this appears to be decoupled from political and policy changes. We also discuss how “internationalization” initiatives provide an insufficient policy umbrella for policy action on the recruitment and retention of international students. Public policy impacting international students spans multiple government agencies or ministries, encompassing different policy fields. This requires greater policy coordination, which remains elusive for the most part. 相似文献
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