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991.
Mats Ekström Monika Djerf-Pierre Bengt Johansson Nicklas Håkansson 《Journalism Practice》2016,10(8):983-1004
News interviews are contexts in which political responsibilities are articulated and negotiated. Although the accountability interview is recognized as a commonsense practice in journalism, and the research on political interviews is substantial, it partly remains to explore how responsibilities are negotiated in different forms of questioning in journalism. This study investigates three generic forms of questioning: accountability questioning, the clarifying of promises, and the principal assessments. Key features of the different forms are specified. The empirical study investigates how the questionings are performed in news on industrial crises in Sweden, in the different political regimes in the 1970s and the 2000s. The data consist of 27 news interviews with the formally responsible Ministers. The method is based on Conversation Analysis and includes detailed analyses of questions and answers. The study shows (1) how the forms of questioning differ when it comes to the action agenda and in how responsibilities are invoked and negotiated; (2) how the questionings tend to reproduce particular expectations of Governmental interventions; (3) how increased assertiveness and adversarialness in interviewing coincide with reduced expectations of political responsibilities. 相似文献
992.
This article reports the results of a survey of literature on measures of library effectiveness. This survey led to the formulation of six criterion concepts (accessibility, cost, user satisfaction, response time, cost/benefit ratio, and use). The advantages and disadvantages of each method of measurement are discussed. Several points which became clear during the analysis are discussed. First, there is a relative lack of concern with the rationale behind the evaluation process, although the results invariably lead to a confused interpretation when there is no clear understanding of the purpose of an evaluation. Second, the total library system is rarely considered; instead, each evaluation criterion is taken in isolation rather than as part of the whole. Third, the library's preservation function has not been considered at all. 相似文献
993.
The article traces the origin and development of the concept of social skills in first and foremost American academic discourse. As soon as the concept of social skills was coined, the concern for people lacking such skills started and has been on the increase ever since (now sharing public attention with related concepts such as self-control, emotional intelligence and empathy). After the analysis of the academic history of the concept follows an examination of the implementation of a range of assessment instruments and training programmes related to social skills (and lack hereof) in contemporary Danish welfare institutions (more specifically, day nurseries and schools, employment and penal services). The analysis forwarded in the article thus demonstrates how an intellectual idea may develop and travel - and on its journey connect to pre-existing cultural logics and societal concerns. The idea of social skills has through its development been made uncontroversial – everybody wants to be skilful. The concept does, however, convey an individualistic view on social life and imposes a reflexivity over own performance on the participants. Further, its normative character contributes to a problematization of those who are perceived to lack these skills. 相似文献
994.
Alain Desrosières 《Minerva》2009,47(3):307-322
Are the categories used to study the social world and acting on it “real” or “conventional”? An empirical answer to that question is given by an analysis of the debates about the “quality” of statistics produced by the European National Institues of statistics in the 1990s. Six criteria of quality were then specified: relevance, accuracy, timeliness, accessibility, comparability and coherence. How do statisticians and users of statistics deal with the tension produced by their objects being both “real” (they exist before their measurement) and “conventionally constructed” (they are in a way, created by these conventions)? In particular, the technical and sociological distinction between the criteria of relevance and accuracy implies a realistic interpretation, desired by users, but that is nonetheless problematic. 相似文献
995.
求解有约束最优化问题的不连续罚函数积分总极值法 总被引:1,自引:0,他引:1
1IntroductionLetXbe a topological space ,Sa nonempty subsetofXandf:X→Ra real-valued function.Consider thefollowing constrained opti mization problem:c*=infx∈Sf(x) , (1)and the set of global mini mizers :H*={x∈S|f(x) =c*} (2)under the assumptions (see Refs .[1] and [2]) :(A) :fis lower semi-continuous ,Sis closed andthere is a real numberbsuch that the setHb={x∈S|f(x)≤b} is a nonempty compact set ;(R) :fis upper robust onS,i.e.,{x∈S|f(x) 相似文献
996.
Mehmet Demir 《Educational technology research and development : ETR & D》2018,66(6):1457-1477
This study investigates the development of an instrument to explore the views of student teachers in Turkey towards using Facebook as a tool for teaching and learning. A five-point Likert-type scale was developed for a sample of 687 student teachers from various fields in Adiyaman, Mustafa Kemal, and Inonu Universities. The sample included 445 participants in the first application and 242 participants in the second. A literature review, students’ comments, and relevant Facebook research results were considered in order to establish the items for the scale. A comparative analysis of previous studies and instruments yielded an original 33-item pool, and experts’ judgments were consulted to confirm the content validity of the scale. Exploratory and confirmatory factor analyses were conducted to determine the factor structure of the scale, revealing 17 items that could be grouped under three general factors. A Cronbach’s coefficient (α) was employed to determine the internal consistency coefficients for the whole scale and its subscales. Results indicate that this learning scale (FLTS) is a valid and reliable instrument to investigate the use of Facebook as a learning tool. 相似文献
997.
The purpose of this study was to assess preservice teachers’ views of Nature of Science (NOS), identify aspects that were challenging for conceptual change, and explore reasons why. This study particularly focused on why and how some concepts of NOS may be more easily altered than others. Fourteen preservice science teachers enrolled in a NOS and Science Inquiry course participated in this study. Data were collected by using a pre/post format with the Views of Nature of Science questionnaire (VNOS-270), the Views of Scientific Inquiry questionnaire (VOSI-270), follow-up interviews, and classroom artifacts. The results indicated that most students initially held naïve views about certain aspects of NOS like tentativeness and subjectivity. By the end of the semester, almost all students dramatically improved their understanding about almost all aspects of NOS. However, several students still struggled with certain aspects like the differences between scientific theory and law, tentativeness, and socio-cultural embeddedness. Results suggested that instructional, motivational, and socio-cultural factors may influence if and how students changed their views about targeted NOS aspects. Students thought that classroom activities, discussions, and readings were most helpful to improve their views about NOS. The findings from the research have the potential to translate as practical advice for teachers, science educators, and future researchers. 相似文献
998.
Aurelio Cabello-Garrido Enrique España-Ramos Ángel Blanco-López 《International Journal of Science and Mathematics Education》2018,16(7):1269-1289
This paper describes the application of the methodology developed in research on learning progressions to a health-related topic. More specifically, we present a human nutrition learning progression as a hypothesis that now requires empirical validation. The study involved three phases. In the first phase, we analysed the existing literature in the domain of human nutrition. Based on this analysis, phase 2 then involved drawing up a learning progression for this domain and identifying the learning targets and progress variables, as well as the upper and lower anchors. The analysis led us to identify five progress variables, associated with the development of the concepts of food, nutrient, energy and diet, as well as with the ability to classify foods according to their nutrients. Finally, in phase 3, we identified and described the pathways that students may follow in relation to each progress variable. Given its focus on a topic closely linked to personal health, the learning progression may be useful not only as a component of teaching modules that aim to improve scientific literacy but also as a platform for future health education campaigns that seek to promote healthy eating habits among different sectors of the population. 相似文献
999.
1000.
Gender Disparity in STEM Disciplines: A Study of Faculty Attrition and Turnover Intentions 总被引:1,自引:0,他引:1
Yonghong Jade Xu 《Research in higher education》2008,49(7):607-624
This study examines the underrepresentation of women faculty in science, technology, engineering, and mathematics (STEM) by
comparing the intentions of attrition and turnover between genders in Research and Doctoral universities. It is found that
the two genders did not differ in their intentions to depart from academia, but women faculty had a significantly higher likelihood
to change positions within academia. The indications are that women and men are equally committed to their academic careers
in STEM; nonetheless, women’s stronger turnover intentions are highly correlated with dissatisfaction with research support,
advancement opportunities, and free expression of ideas. The findings suggest that the underrepresentation of women is more
convincingly explained by an academic culture that provides women fewer opportunities, limited support, and inequity in leadership,
rather than by gender-based differences such as roles in family responsibilities. Changes in academic STEM culture are needed
in order to attract more women scientists and narrow the current gender gap. 相似文献