排序方式: 共有69条查询结果,搜索用时 15 毫秒
11.
Marie‐Christine P. J. Knippels Sabine E. Severiens Tanja Klop 《International Journal of Science Education》2013,35(15):2057-2083
The present study examined the outcomes of a newly designed four‐lesson science module on opinion‐forming in the context of genomics in upper secondary education. The lesson plan aims to foster 16‐year‐old students’ opinion‐forming skills in the context of genomics and to test the effect of the use of fiction in the module. The basic hypothesis tested in this study is whether fiction stimulates students to develop opinions with regard to socio‐scientific issues. A quasi‐experimental pre‐test and post‐test design was used, involving two treatment groups and one control group. One of the experimental groups received a science module incorporating movie clips (i.e., the movie group). The other experimental group received the same science module, but only news report clips were used (i.e., the news report group). Prior to and after the module, 266 secondary school students completed a questionnaire to test their opinion‐forming skills. The results demonstrate that the science module had a significant positive effect on students’ opinion‐forming skills and that the movie group improved their skills more compared with the news report group. It may be concluded that the use of fiction—to be more specific, movie clips about genomics extracted from feature films—to introduce a socio‐scientific issue in the classroom stimulates students to develop their opinion‐forming skills. 相似文献
12.
Tanja E. Bosch 《Journal of Radio & Audio Media》2013,20(2):249-265
This article provides a historical account of Bush Radio, the oldest community radio station in Africa, based in Cape Town, South Africa. The creation of Bush Radio's precursor, the Cassette Education Trust (CASET) was a pivotal moment for the emergence of community radio on the continent. This people's history of Bush Radio tells the full story through the voices of the founders and staff, together with other sources of historical data. The article argues that although the apartheid state constructed essentialist racial and ethnic categories, CASET and later Bush Radio constantly positioned themselves in a space of liminality to interrogate and redefine these categories. Privileging an instrumentalist approach, this article shows the connections between ideology, politics, and economics as they converge to form the industrial structure, the political environment, and the cultural product of broadcasting. 相似文献
13.
Tanja Bipp Ad Kleingeld Heleen van Mierlo Wilfried Kunde 《Journal of Experimental Education》2017,85(3):469-485
We investigated the impact of subconscious goals on academic performance in two field experiments. We show that unobtrusive priming of goals with regard to achievement motivation by means of a photograph improves performance in different educational contexts. High-school students who were exposed to an achievement-related photograph achieved higher grades than students in two control conditions. This effect was not affected by students’ prior performance. University students exposed to a photograph representing a specific, difficult goal reached even higher performance than students taking the exam with a general achievement photograph. For practice, subconscious goals may form a powerful, cost-effective tool to enhance academic performance. However, varying results across the experiments also prompt the need for further investigations of such effects. 相似文献
14.
Association between 11beta-hydroxysteroid dehydrogenase type 1 gene polymorphisms and metabolic syndrome in Bosnian population 总被引:1,自引:0,他引:1
Dujic T Bego T Mlinar B Semiz S Malenica M Prnjavorac B Ostanek B Marc J Causevic A 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2012,22(1):76-85
Introduction:
The enzyme 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) catalyzes the conversion of the hormonally inactive cortisone to active cortisol, thus facilitating glucocorticoid receptor activation in target tissues. Increased expression of 11β-HSD1 in adipose tissue has been associated with obesity and insulin resistance. In this study, we investigated the association of two 11β-HSD1 gene (HSD11B1) polymorphisms with the metabolic syndrome (MetS) and its characteristics in the Bosnian population.Materials and methods:
The study included 86 participants: 43 patients diagnosed with MetS and 43 healthy controls. Subjects were genotyped for two HSD11B1 gene polymorphisms: rs846910: G>A and rs45487298: insA, by the high resolution melting curve analysis. Genotype distribution and an influence of genotypes on clinical and biochemical parameters were assessed.Results:
There was no significant difference in the mutated allele frequencies for the two HSD11B1 gene polymorphisms between MetS patients and controls. In MetS patients, no significant associations between disease-associated traits and rs45487298: insA were found. Regarding rs846910: G>A variant, heterozygous patients (G/A) had significantly lower systolic (P = 0.017) and diastolic blood pressure (P = 0.015), lower HOMA-IR index (P = 0.011) and higher LDL-cholesterol levels (P = 0.049), compared to the wild-type homozygotes. In the control group, rs45487298: insA polymorphism was associated with lower fasting plasma insulin levels (P = 0.041), lower homeostasis model assessment insulin resistance (HOMA-IR) index (P = 0.041) and lower diastolic blood pressure (P = 0.048). Significant differences between rs846910: G>A genotypes in controls were not detected. Haplotype analysis confirmed the association of rs45487298: insA with markers of insulin resistance in the control subjects.Conclusions:
Our results indicate that a common rs45487298: insA polymorphism in HSD11B1 gene may have a protective effect against insulin resistance. 相似文献15.
Tanja Engelmann Sigmar-Olaf Tergan Friedrich W. Hesse 《Journal of Experimental Education》2013,81(2):268-290
Computer-supported collaboration by spatially distributed group members still involves interaction problems within the group. This article presents an empirical study investigating the question of whether computer-supported collaborative problem solving by spatially distributed group members can be fostered by evoking knowledge and information awareness, i.e., awareness of a group member with regard to both their fellow collaborators’ domain knowledge and information underlying this knowledge. The study (N = 30 triads) confirmed the efficiency of this approach by comparing (a) an experimental condition in which an environment for fostering knowledge and information awareness was provided and (b) a control condition without such an environment, with regard to communication and cooperation aspects, the quality of the group maps (needed for solving the problems), and the problem-solving performance. 相似文献
16.
Little is known about ethnic differences in highbrow cultural interests, because research on social differentiation in cultural participation has traditionally focused on educational or income inequalities. Employing data from the Netherlands’ Longitudinal Lifecourse Study 2010 we explored the extent to which educational attainment, national identification and social integration explain inequality in cultural participation among Turkish and Moroccan immigrants, and to what extent the effect of education was moderated by aspects of social identification and integration. Our results indicate that Turks and Moroccans, who identify more with the Netherlands and have a social network that includes larger numbers of Dutch and higher educated friends, are more active in the cultural realm. Most interestingly, we found that strong identification with Dutch society actually moderates the relationship between an immigrants’ educational attainment and their cultural participation: that is, highly educated people of Turkish and Moroccan descent, who strongly identify with the Netherlands, participated more in highbrow culture than their highly educated counterparts who identified less with the Netherlands. 相似文献
17.
Tanja Janssen Martine Braaksma Gert Rijlaarsdam 《European Journal of Psychology of Education - EJPE》2006,21(1):35-52
In this study we examined how good and weak students of literature interact with short literary stories. We focused on differences
in the use of cognitive and affective reading activities, and in the extent to which good and weak students adapt their activities
to (parts of) the story they are reading.
19 Dutch tenth-grade students from 8 classes participated in the study, of whom 10 were known to be good students of literature
and 9 were known as weak literature students. Each student read five literary stories under think aloud conditions. The stories
were presented segment by segment on a computer screen. Students responses were transcribed, segmented and coded. Analysis
of variance was applied to the data to test the diffrences between good and weak students. 相似文献
18.
Arianna Howard Ashley Patterson Valerie Kinloch Tanja Burkhard Ryann Randall 《Gender and education》2016,28(6):756-768
ABSTRACTThis article de-centres imperialist, capitalist, patriarchal traditions of critical approaches in Curriculum Studies via an examination of experiences shared at The Black Women’s Gathering Place (BWGP), a non-traditional space where a diverse, intergenerational group of Black women engage with each other through the sharing of stories. In the BWGP, we enact components of Pinar’s [2004. What is Curriculum Theory? Mahwah, NJ: Lawrence Erlbaum] concept of currere, simultaneously re-entering our collective and individual pasts and re-imagining our futures in an effort to reconcile our public and private selves. Taking up tenets of Black feminist theory, theoretical framings of hidden curriculum, and components of Ng-A-Fook’s [2007. An Indigenous Curriculum of Place: The United Houma Nation’s Contentious Relationship with Louisiana’s Educational Institutions. New York, NY: Peter Lang] ‘Curriculum of Place,’ we reconceptualise a curriculum of place/space that negotiates dominant norms expressed in social environments. In this space, we validate traditional knowledges upheld in communities of Black women across the Diaspora. The BWGP allows us to argue for a re-presentation of extant knowledge by and about Black women. 相似文献
19.
20.
Roy B. Clariana Tanja Engelmann Wu Yu 《Educational technology research and development : ETR & D》2013,61(3):423-442
Problem solving likely involves at least two broad stages, problem space representation and then problem solution (Newell and Simon, Human problem solving, 1972). The metric centrality that Freeman (Social Networks 1:215–239, 1978) implemented in social network analysis is offered here as a potential measure of both. This development research study applied centrality measures to reanalyze existing concept maps from a recent investigation (Engelmann and Hesse, Computer-Supported Collaborative Learning 5:299–319, 2010). Participants (N = 120) were randomly assigned to interdependent (i.e. hidden profiles) or non-interdependent conditions to work online in triads using CmapTools software to create a concept map in order to solve a problem scenario. The centrality values of these group-created concept maps agreed with the common relations count analysis used in that investigation and allowed for additional comparisons as well as analysis by multidimensional scaling. Specifically, the interdependent triad maps resembled the fully explicated problem space, while the non-interdependent triad maps mainly resembled the problem solution. The results demonstrate that centrality is a useful measure of knowledge structure contained in these team concept map artifacts that allows researchers to infer problem representation start and goal state transitions during problem solving. 相似文献