Observations sur la dimension pratique dans la formation des enseignants     

Maria Corda Costa 《欧洲师范教育杂志》1996,19(3):261-268

The strongpoints on which to plan the initial education and training of teachers are dealt with. On the training side two elements are considered: that part of training linked to learning processes, and the other part facing the social life of classroom and school, social and affective growth, civic education. It is advocated that the interaction between subject‐matter and its construction/transmission could take place through practical experimental paths within the actual work of school.  相似文献   

The difficulty of sit-ups tests: an empirical investigation.     

M J Safrit  W Zhu  M G Costa  L Zhang 《Research quarterly for exercise and sport》1992,63(3):277-283

This study estimated the difficulty of various sit-ups tests using an item response theory (IRT) model, the Rasch Poisson Counts model. Scores were obtained on 18 sit-ups tests. All tests were thought to vary in difficulty based on clinical observations. Item difficulty was defined by the Poisson model as the difficulty of Step 1, where the difficulty of a step represented the difficulty of completing a sit-up. The difficulty values of the tests ranged from -4.02 to -3.57. The easiest test was executed with hands on thighs and feet anchored. Most tests had good fit values. The results demonstrated that a variety of sit-ups tests can provide a range of difficulties and variety in forming a sit-ups test bank.  相似文献   

Movement behaviors and their association with depressive symptoms in Brazilian adolescents: A cross-sectional study     

Bruno Goncalves Galdino da Costa  Jean-Philippe Chaput  Marcus Vinicius Veber Lopes  Luis Eduardo Argenta Malheiros  Kelly Samara Silva 《运动与健康科学(英文)》2022,11(2):252-259

Background:Physical activity,sleep,and sedentary behaviors compose 24-h movement behaviors and have been independently associated with depressive symptoms.However,it is not clear whether it is the movement behavior itself or other contextual factors that are related to depressive symptoms.The objective of the present study was to examine the associations between self-reported and accelerometer-measured movement behaviors and depressive symptoms in adolescents.Methods:Cross-sectional data from 610 adolescents(14-18 years old)were used.Adolescents answered questions from the Center for Epidemiological Studies Depression scale and reported time spent watching videos,playing videogames,using social media,time spent in various physical activities,and daytime sleepiness.Wrist-worn accelerometers were used to measure sleep duration,sleep efficiency,sedentary time,and physical activity.Mixed-effects logistic regressions were used.Results:Almost half of the adolescents(48%)were classified as being at high risk for depression(score≥20).No significant associations were found between depressive symptoms and accelerometer-measured movement behaviors,self-reported non-sport physical activity,watching videos,and playing videogames.However,higher levels of self-reported total physical activity(odd ratio(OR)=0.92,95%confidence interval(95%CI):0.86-0.98)and volume of sports(OR=0.88,95%CI:0.79-0.97),in minutes,were associated with a lower risk of depression,while using social media for either 2.0-3.9 h/day(OR=1.77,95%CI:1.58-2.70)or>3.9 h/day(OR=1.67,95%CI:1.10-2.54),as well as higher levels of daytime sleepiness(OR=1.17,95%CI:1.12-1.22),were associated with a higher risk of depression.Conclusion:What adolescents do when they are active or sedentary may be more important than the time spent in the movement behaviors because it relates to depressive symptoms.Targeting daytime sleepiness,promoting sports,and limiting social media use may benefit adolescents.  相似文献   

Drivers of spin-off performance in industry clusters: Embodied knowledge or embedded firms?     

Guido Buenstorf  Carla Costa 《Research Policy》2018,47(3):663-673

Numerous studies attest to the distinctive performance of intra-industry spin-offs located in agglomerated regions. Besides entrepreneurs’ pre-entry experience, both superior hires and regional embeddedness have been suggested as factors contributing to this pattern. We employ linked employer-employee data to assess their relevance in the empirical context of the Portuguese plastic injection molds industry. We find that the longevity of entrants is associated with the number and quality of early employees hired from within the industry, consistent with the importance of embodied knowledge flows. Our findings do not suggest that entrants’ centrality in the regional industry network enhances their longevity.  相似文献   

A ‘power law’ based method to reduce size-related bias in indicators of knowledge performance: An application to university research assessment     

Armando Calabrese  Guendalina Capece  Roberta Costa  Francesca Di Pillo  Stefania Giuffrida 《Journal of Informetrics》2018,12(4):1263-1281

The knowledge production provided by universities is essential to sustaining a country’s long-term economic growth and international competitiveness. Many nations are thus driving to create sustainable and effective funding environments. The evaluation of university knowledge, productivity and research quality becomes critical, with ever increasing share of public funding allocated on the basis of research assessment exercises. Nevertheless, the existing methods to assess the universities’ knowledge production are often affected by limits and biases, extensively discussed in the scientific literature.In this paper we study how to reduce the effect of size-related bias due to university size on the indicators of knowledge performance used in evaluation exercises. We propose an innovative utilization of the scale-free property of the power laws as a scaling relationship, to normalize research productivity indicators, and provide results independent by the university size. Our method has evident policy implications and gives a contribution for the future design of assessment exercises.We apply our findings in a recent Italian research assessment exercise.  相似文献   

Factors affecting corporate image from the perspective of distance learning students in public higher education institutions     

da Costa  Fábio Reis  Pelissari  Anderson Soncini 《Tertiary Education and Management》2016,22(4):287-299

New information technologies enable different interactions in the educational environment, affecting how the image of educational institutions adopting distance-learning programmes is perceived. This article identifies factors affecting the perception of corporate image from the viewpoint of distance-learning students at public higher education institutions. The results indicate that the institution’s image is a translation of impressions generated from the individual’s interaction with various organisational components, based on relevant cognitive and affective aspects according to the way of observing the environment. The study demonstrated both the multidimensionality of the image and that the institution’s overall image is associated most strongly with its affective image. The study also demonstrated that the virtual environment was the factor most strongly associated with affective image.  相似文献   

The Politics of Playing Along: Radio and Regulation in Democratic Europe     

Elsa Costa e Silva  Ana Isabel Reis 《Journal of Radio & Audio Media》2017,24(1):130-143

The loss of localism has been a common trend in most radio markets in Europe and the United States. Deregulation of ownership led to a concentration phenomenon that has affected local radios in several western democracies. New forms of regulation have been considered as possible ways to stop the erosion of localism by applying rules to markets in the defense of diversity, pluralism, and the local dimension. This article analyses the local radio market in Portugal, by assessing the changes in the legislation and by examining the regulatory action that can, according to its remit, act preventively to avoid market forces to harm these principles.  相似文献   

Students’ expectations of the economic returns to college education: results of a controlled experiment     

Anabela Botelho  Lígia Costa Pinto   《Economics of Education Review》2004,23(6):645-653

We report the results of an experiment designed to elicit students’ subjective beliefs about the economic returns to college education. An important feature of our experimental design is the inclusion of financial incentives for accurate reporting. We also consider the extent to which individuals’ beliefs about their own returns differ from their beliefs about the returns for others. The evidence shows that students do have a self-enhancement tendency, and this finding cannot be attributed to previously uncontrolled order effects. The evidence also indicates that there is no significant difference between beliefs elicited using hypothetical surveys or real financial incentives in the elicitation procedure. This finding suggests that economists’ reluctance to gather subjective data on earnings expectations may not be warranted.  相似文献   

Tables of contextual cognition: a proposal for intercultural research in science education     

Geilsa?Costa?Santos?BaptistaEmail author 《Cultural Studies of Science Education》2018,13(3):845-863

The goal of this paper is to propose tables of contextual cognition as a tool for research and a model to facilitate the intercultural dialogue on science education in schools. The proposal arose from a qualitative case study, involving the use of tables of compared cognition in biology classes in a Brazilian public school. The results indicate that these tables helped students to understand relationships of similarities and differences between their previous knowledge and scientific knowledge and, equally, to delimit the original context and applicability of each of these ways of knowing. However, I perceived the need to expand these tables to gain a new meaning for the practical purposes of research and culturally sensitive science teaching. Finally, tables of contextual cognition considering these changes are proposed and I discuss the possible implications for teaching and research in science education.  相似文献   

Perspectives on the Origins of Life in Science Textbooks from a Christian Publisher: Implications for Teaching Science     

Geilsa Costa Santos Baptista  Rodrigo da Silva Santos  William W. Cobern 《International Journal of Science and Mathematics Education》2016,14(2):309-326

This paper presents the results of research regarding approaches to the origin of life featured in science textbooks produced by an Evangelical publisher. The research nature was qualitative with document analysis and an interpretive framework based on Epistemological Pluralism. Overall, the results indicate that there are four perspectives on the origin of life in textbooks under study. These perspectives do not distinguish scientific knowledge from religious knowledge but present a hybrid of scientific and religious knowledge. There are scientific inaccuracies in the perspectives, which emphasize biblical arguments over scientific arguments. Data analysis and conclusions take into account the central argument of Epistemological Pluralism about the importance of demarcation of science in relation to other knowledge systems and its consequences for learning science.  相似文献