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241.
242.
Geraldine Clarebout Holger Horz Wolfgang Schnotz Jan Elen 《Educational technology research and development : ETR & D》2010,58(5):573-587
The current study investigates whether embedding support may provide a solution to sub optimal use of support and whether
this is related to learners’ self-regulation skills and goal orientation. Sixty students were divided in a condition where
support was embedded and a condition where support was non-embedded. Results reveal that the embedded group used more and
spent more time on the use of support. Quality of use differed for one support device only, with quality being higher in the
non-embedded group. An interaction with self-regulation was found. High self-regulators use the support devices less optimal
when support is embedded. No conclusions could be drawn with respect to goal orientation. Quality of usage and proportional
time spent on support influenced learning outcomes. 相似文献
243.
“Transfer” from research into practical applications is mostly seen as an autonomous domain between research and practice. For educational research, the author develops a conception in which transfer is a part of research, especially of applied educational research with a focus on teaching activities and teaching-learning materials. The criticism of traditional teaching research is examined and a research and development approach to didactics is proposed as a chance to combine theory and practice. The article comprises considerations on the scientific nature of research and development in didactics borrowing concepts from Bunge and Stokes and R & D in the economic sciences. The last section shows two research examples and closes with considerations for process and product evaluation in didactic research and development. 相似文献
244.
Donsbach Wolfgang; Neijens Peter; Traugott Michael W. 《Int. Journal of Public Opinion Research》2009,21(1):1-2
This issue contains a fine variety of articles: a historicalstudy, two studies in which theories and data are combined,a methodological study, and three research notes. The issueis completed with a book review, an overview of recent booksand articles in the field of public opinion, and WAPOR news. The first article 相似文献
245.
Roland M. Schulz 《Science & Education》2009,18(3-4):225-249
The call for reforms in science education has been ongoing for a century, with new movements and approaches continuously reshaping the identity and values of the discipline. The HPS movement has an equally long history and taken part in the debates defining its purpose and revising curriculum. Its limited success, however, is due not only to competition with alternative visions and paradigms (e.g. STS, multi-culturalism, constructivism, traditionalism) which deadlock implementation, and which have led to conflicting meanings of scientific literacy, but the inability to rise above the debate. At issue is a fundamental problem plaguing science education at the school level, one it shares with education in general. It is my contention that it requires a guiding “metatheory” of education that can appropriately distance itself from the dual dependencies of metatheories in psychology and the demands of socialization—especially as articulated in most common conceptions of scientific literacy tied to citizenship. I offer as a suggestion Egan’s cultural-linguistic theory as a metatheory to help resolve the impasse. I hope to make reformers familiar with his important ideas in general and more specifically, to show how they can complement HPS rationales and reinforce the work of those researchers who have emphasized the value of narrative in learning science. This will be elaborated in Part II of a supplemental paper to the present one. As a prerequisite to presenting Egan’s metatheory I first raise the issue of the need for a conceptual shift back to philosophy of education within the discipline, and thereto, on developing and demarcating true educational theories (essentially neglected since Hirst). In the same vein it is suggested a new research field should be opened with the express purpose of developing a discipline-specific “philosophy of science education” (largely neglected since Dewey) which could in addition serve to reinforce science education’s growing sense of academic autonomy and independence from socio-economic demands. 相似文献
246.
Wolfgang HUBER Uli MAYR ANDreas UMGELTER Michael FRANZEN Wolfgang REINDL RolAND M.SCHMID Florian ECKEL 《Journal of Zhejiang University. Science. B》2018,(7)
目的:通过对危重病人在入院后24小时内和整个重症监护过程中窦性心律和控制呼吸情况的调查,分析每搏量变异在评估危重病人容量反应的适用性,并探究每搏量变异度在败血症、肝硬化和胰腺炎病人中的适用性。创新点:通过探究窦性节律和控制呼吸情况评估每搏量变异度在重症监护病人临床上的适用性,弥补重症监护病人窦性节律和控制呼吸情况数据的空白。方法:在进行1241次热稀释法血流量测量前,对88位病人的窦性节律和控制呼吸情况进行调查。结论:每搏量变异度在主要的医疗重症监护病房中的适用性只约为25%~35%。两项强制性指标的流行性在重症监护病房的情况随时间的延长而降低。此外,每搏量变异度在胰腺炎和肝功能衰竭患者中的适用性尤其低。 相似文献
247.
248.
It has become somewhat of a custom for the editors of this journalto praise, at this place, the thematic and geographical diversityof the research presented in the respective issue. We will notbreak with this custom this time, but, with the twinkling ofan eye, begin by stating that diversity is almost lacking inone respect in this issue: gender. If it were not for one co-authorand the World Opinion and Book Reviewssections, this would be an all-male issue, authorwise. A 相似文献
249.
This issue of the journal has a full complement of articlesabout public opinion processes and methodological topics relatedto the reliability and validity of public opinion data. In accordwith the journal's stated policies, they reflect the work 相似文献
250.
The paper provides a briefintroduction to the biotechnology revolutionand its impact upon biological researchrelevant to military uses. It describes thestatus of biological weapons today, and currentefforts to strengthen the Biological WeaponsConvention with a legally binding complianceprotocol. Specific modifications ofmicro-organisms that may be of military use arediscussed. Three examples of dual-use researchactivities are then used to highlight issuesand dilemmas in ethical decision making. 相似文献