排序方式： 共有76条查询结果，搜索用时 312 毫秒
1.
Will synthetic biology elicit controversies similar to those of genetically modified crops before? Maybe, but where exactly are the analogies, and how can we gain substantial insights rather than mere guesses? We argue that as well as the intrinsic properties of the technologies at stake, the context of their implementation is decisive. To assess mechanisms of past and potential controversies, an investigative tool is presented. The Gate Resonance model, derived from older models of societal conflict, allows the identification of key elements of conflict generating processes. In monitoring the developing debate on synthetic biology using this model, analogies to the case of genetically modified crops appear less convincing. So far, there are only few indications that a controversy is imminent. 相似文献
2.
Helge Dohn 《Higher Education》1995,30(4):435-441
The study reported in this paper describes how higher order political and educational conditions unintentionally emphasize the teaching-learning practice in a specific subject (eg. a first year chemistry course at the Royal Veterinary and Agricultural University of Denmark). It is pointed out that the budgetary market economy model for financing higher education institutions that is currently used, the admission procedures and specific entrance requirements to that university, in addition to the chosen curriculum structure combine to single out the chemistry course as a gate-keeper governing the enrolment to that university. A high failure rate in this course was defined more as a teaching-learning problem rather than as a consequence of the higher order educational planning. 相似文献
3.
When navigating through the vast amount of information that we encounter in our everyday lives, we constantly make decisions concerning what information to read more closely and what information to disregard. Consideration of the relevance and trustworthiness of information sources facilitates those decisions. In the present study, we interviewed 25 upper-secondary students after they had selected documents to use in completing a task, and we asked them to justify their selections. A qualitative analysis of the interview data showed that students’ justifications could be related to (1) content relevance, (2) source features, and (3) prior topic knowledge. The results demonstrate that students are able to evaluate content relevance and source features as part of their document selection strategies but that perceived prior knowledge seems to influence both selections and justifications. 相似文献
4.
Using a sample of 282 Norwegian upper secondary students, we examined whether two dimensions of topic‐specific epistemic beliefs, concerning the certainty of knowledge and the justification for knowing, predicted students' understanding of seven texts representing partly conflicting views on climate change. Text comprehension was measured at three different levels. Topic knowledge and topic interest were included in the analyses as control variables. Hierarchical regression analyses showed that students' beliefs about justification for knowledge positively predicted text comprehension at all three levels. That is, students believing that knowledge claims about climate change should be based on rules of inquiry and the evaluation and integration of multiple information sources did better on the three comprehension measures. 相似文献
5.
6.
The purpose of this article is to study how WebTV channel additions influence the following relationship dimensions between a broadcasting company and its consumers: brand knowledge, brand satisfaction, direct relationship investments, and indirect relationship investments. A survey of broadcast consumers indicated positive effects of WebTV channel additions on all 4 brand relationship dimensions. The findings also indicate that brand satisfaction, direct relationship investments, and indirect relationship investments mediate the effect of WebTV channel additions on customers' use of the broadcaster's main channel. The implication of the results is that WebTV channel additions have the potential to strengthen consumer-brand relationships and that WebTV channel additions seem to complement rather than substitute a broadcast company's main channel. Based on the results, WebTV channel additions are recommended as a channel strategy for broadcasting companies. Similar studies in other industries and settings are suggested before the results can be generalized more broadly. 相似文献
7.
Jan Helge Kallestad 《Scandinavian Journal of Educational Research》2013,57(2):193-205
We have earlier reported overall teacher emphases on six general educational goals. In the present study we present school level analyses of the same goal variables. The new focus of the present study was on possible school differences in teacher goal emphases. It is assumed that school differences may indicate a process of teacher socialisation in schools, particularly if these characteristics are relatively stable over time. About 40 schools were analysed at two points in time and they were represented by two different samples of teachers (144 and 157 teachers). We analysed both individual goal variables and goal profiles defined by how the teachers ranked the six goals. Only the 'profile approach' indicated school-specific goal priorities. The results also showed that the degree of goal consensus in schools should not be regarded as an aspect of the school climate. In addition, the measure of school goal consensus was weakly related to other examined aspects of the school climate. 相似文献
8.
Predicting Achievement Goals in Two Different Academic Contexts: A longitudinal study 总被引：1，自引：0，他引：1
The relative contribution is examined of epistemological beliefs and implicit theories of intelligence to students' adoption of mastery, performance‐approach and performance‐avoidance goals in two different academic contexts, business administration and teacher education, in the short as well as the long term. The results showed that epistemological beliefs about the speed of knowledge acquisition predicted achievement goals. Students who believed that learning occurs quickly or not at all were less likely to adopt mastery goals and more likely to adopt performance‐avoidance goals. In addition, students who believed in stable and given knowledge were less likely to adopt mastery goals. Differences in predictive patterns across the two contexts concerned the prediction of performance‐approach goals and gender differences in goal adoption. Epistemological beliefs played a more important role in goal adoption than implicit theories of intelligence. 相似文献
9.
Research within a constructivist approach often relies on interview data, which are used to reveal beliefs held by the interviewee or to expose conceptions or conceptual structures that are supposed to reside within the interviewee. From a sociocultural perspective, severe criticism has been leveled against the neglect of the problems of inferring conceptions held by a participant from what is uttered in an interview. Utterances should be looked upon as cultural tools used to realize discursive practices, rather than as propositions mirroring mental entities. It is argued that the clinical interview, often used by constructivists, disregards the impact of a situation and discursive norms with regard to what is uttered in a conversation. Here, it is argued that by taking into account an interviewee's conceptions of the situation, as well as of the subject matter being talked about, some sort of a bridge between the methodological standpoints of constructivism and sociocultural theory can be formed. It is proposed that utterances should be regarded as actions, and thus the problem of ascribing meanings to behavior is in focus, that is, how a series of behaviors can be regarded as an intentional action. It is argued that by means of such an approach, it is possible to make inferences about conceptions and conceptual structures much in the same way as is done in research on conceptual change. However, this means that utterances cannot just be “read off.” The interviewee's aims, conceptions of the subject matter talked about, as well as the interviewee's conceptions of the situation to hand must be taken into account. A reinterpretation of data reported by Andrea diSessa and Bruce Sherin is used as an illustration. 相似文献
10.
Students are faced with a multitude of decisions as consumers and in societal debates. Because of the scarcity of resources, the destruction of ecosystems and social injustice in a globalized world, it is vital that students are able to identify non-sustainable courses of action when involved in decision-making. The application of decision-making strategies is one approach to enhancing the quality of decisions. Options that do not meet ecological, social or economic standards should be excluded using non-compensatory strategies whereas other tasks may require a complete trade-off of all the evidence, following a compensatory approach. To enhance decision-making competence, a computer-based intervention study was conducted that focused on the use of decision-making strategies. While the results of the summative evaluation are reported by Gresch et al. (International Journal of Science Education, 2011), in-depth analyses of process-related data collected during the information processing are presented in this paper to reveal insights into the mechanisms of the intervention. The quality of high school students’ (n?=?120) metadecision skills when selecting a decision-making strategy was investigated using qualitative content analyses combined with inferential statistics. The results reveal that the students offered elaborate reflections on the sustainability of options. However, the characteristics that were declared non-sustainable differed among the students because societal norms and personal values were intertwined. One implication for education for sustainable development is that students are capable of reflecting on decision-making tasks and on corresponding favorable decision-making strategies at a metadecision level. From these results, we offer suggestions for improving learning environments and constructing test instruments for decision-making competence. 相似文献