The research-teaching nexus in nurse and teacher education: contributions of an ecological approach to academic identities in professional fields

In developing graduates for the knowledge society lecturers in higher education may seek to strengthen links between research and teaching. Much of the previous work on the research-teaching nexus is within traditional universities and subject disciplines. In aiming to deepen understanding of the research and teaching nexus this paper focuses on the academic identities of higher education lecturers working in newer higher education institutions and in the professional fields of nursing and of teacher education. A qualitative study, informed by professional identity construction as an ecological concept, was conducted. The findings align with previous studies concerning similarities between lecturers in nurse and teacher education, but they contrast with previous studies concerning differences between these two groups of lecturers. Similarities include the priority given by professional educators to their responsibility for preparing new clinical practitioners; the research-led model as the lecturers’ main approach to the research-teaching nexus; and their difficulties in coping with current demands in academic work. Differences between the two groups of lecturers include the way that ‘practitioner identity’ is positioned within their current academic identities and the way that they position initial education within the wider professional field. These differences indicate different kinds of connections between teaching and research. The paper proposes an ecological approach to understanding the research-teaching nexus.     

The role of location and social strength for friendship prediction in location-based social networks

Recent advances in data mining and machine learning techniques are focused on exploiting location data. These advances, combined with the increased availability of location-acquisition technology, have encouraged social networking services to offer to their users different ways to share their location information. These social networks, called location-based social networks (LBSNs), have attracted millions of users and the attention of the research community. One fundamental task in the LBSN context is the friendship prediction due to its role in different applications such as recommendation systems. In the literature exists a variety of friendship prediction methods for LBSNs, but most of them give more importance to the location information of users and disregard the strength of relationships existing between these users. The contributions of this article are threefold, we: 1) carried out a comprehensive survey of methods for friendship prediction in LBSNs and proposed a taxonomy to organize the existing methods; 2) put forward a proposal of five new methods addressing gaps identified in our survey while striving to find a balance between optimizing computational resources and improving the predictive power; and 3) used a comprehensive evaluation to quantify the prediction abilities of ten current methods and our five proposals and selected the top-5 friendship prediction methods for LBSNs. We thus present a general panorama of friendship prediction task in the LBSN domain with balanced depth so as to facilitate research and real-world application design regarding this important issue.     

Longitudinal associations between motor competence and different physical activity intensities: LabMed physical activity study

An appropriated level of motor competence is essential for children´s healthy growth and development and a key factor in the promotion of lifelong active lifestyles and health.

The purpose of this study was to examine associations between motor competence and different physical activity intensities (light, moderate, moderate-to-vigorous and vigorous physical activity), as well as total physical activity, over a two-year period, in adolescents. The sample comprised of 103 adolescents (13.49 ± 0.87 years, 53 girls), from the north of Portugal. Motor competence was evaluated with the body coordination test, Körperkoordination-Test-für-Kinder. Physical activity was objectively assessed with GT1M accelerometers (ActiGraph, Pensacola, FL, USA). Physical activity variables were expressed as proportions of accelerometer wear time. Regression analyses showed positive longitudinal associations between motor competence at baseline and moderate physical activity (B = 0.0033, p = 0.018), moderate-to-vigorous physical activity (B = 0.0052, p = 0.024) and total physical activity (B = 0.067, p = 0.040) at follow up, after adjustments for age, sex, the corresponding physical activity intensity at baseline, body mass index, pubertal stage and socioeconomic status. Our ?ndings highlight the importance of motor competence development to promote moderate-to-vigorous physical activity during adolescence.     

Pre-game hydration status, sweat loss, and fluid intake in elite Brazilian young male soccer players during competition

In this study, we assessed the pre-game hydration status and fluid balance of elite young soccer players competing in a match played in the heat (temperature 31.0 ± 2.0 ° C, relative humidity 48.0 ± 5.0%) for an official Brazilian soccer competition. Fluid intake was measured during the match, as were urine specific gravity and body mass before and after the game to estimate hydration status. Data were obtained from 15 male players (age 17.0 ± 0.6 years, height 1.78 ± 0.06 m, mass 65.3 ± 3.8 kg); however, data are only analysed for 10 players who completed the full game. The mean (± s) sweat loss of players amounted to 2.24 ± 0.63 L, and mean fluid intake was 1.12 ± 0.39 L. Pre-game urine specific gravity was 1.021 ± 0.004, ranging from 1.010 to 1.025. There was no significant correlation between sweat loss and fluid intake (r = 0.504, P = 0.137) or between urine specific gravity and fluid intake (r = -0.276, P = 0.440). We conclude that young, native tropical soccer players started the match hypohydrated and replaced about 50% of the sweat lost. Thus, effective strategies to improve fluid replacement are needed for players competing in the heat.     

On the Concept of Energy: How Understanding its History can Improve Physics Teaching

Some physicists have pointed out that we do not know what energy is. Many studies have shown that the concept of energy is a problem for teaching. A study of the history of the concept shows that the discoverers of energy did not find anything which is indestructible and transformable but rather that the concept of energy underwent a change of meaning and energy was considered a substance towards the end of the nineteenth century. In distinguishing between the treatment of phenomena and the theories carried out by Mayer and Joule, it can be concluded that they established equivalences between different domains, such as motion and heat, motion and electricity or position and motion. This complies with the interpretation presented in textbooks published about a century ago and enables us to overcome some difficulties with the concept of energy.

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Argumentative skills development in teaching philosophy to secondary school students through constructive controversy: an exploratory study case

The use of argumentative strategies that promote the defense of well-grounded personal arguments contributes to the development of a critical, ethical and political thought that leads to responsible and socially committed people. Based on the quality of the produced arguments in philosophical essays, this work evaluates the potential application of a cooperative learning method – the constructive controversy – for the development of argumentative skills in secondary school students in philosophy. The quality of the arguments was evaluated through the analysis of a total of 144 philosophical essays produced by the students over a school year. The results point to the advantages of using this method over more traditional ones in the acquisition of argumentative skills.     

The Progression of Prospective Primary Teachers’ Conceptions of the Methodology of Teaching

This article describes the evolution of prospective primary teachers’ conceptions of the methodology of teaching. Three categories were analyzed: the concept of activity, the organization of activities, and the concept of teaching resources. The study was conducted with five teams of prospective teachers, who were participating in teacher education courses of a constructivist orientation. The results showed very different itineraries in the processes of change, and the presence of two major obstacles—the belief that teaching is the direct cause of learning, and epistemological absolutism. The study allows us to deduce some implications for initial teacher education.     

The application of advanced educational technology in Brazil

Education must be given the financial resources needed for expansion and be made more productive by the economic use of human resources. Technology can help to solve the problems of growth. The situation in Brazil has been greatly improved as a result of a comprehensive ten-year plan and the application of educational technology, but much still needs to be done.

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Résumé Il faut procurer à l'éducation les moyens financiers nécessaires à son expansion et la rendre plus productive par une utilisation économique des ressources humaines. C'est la technologie qui peut aider à la résolution des problèmes posés par cette croissance. La situation s'est trouvée fortement améliorée au Brésil du fait de l'application d'un plan décennal et de la mise en oeuvre de la technologie de l'éducation, mais il reste beaucoup à faire.

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This report is an edited and summarised version of a lecture given in Rio de Janeiro in June 1971.     

Radical investment in the curriculum in times of Covid-19: Can we question the anti-science discourses?

PROSPECTS - This article questions the centrality of knowledge and learning in the curriculum, as well as the restriction of education to learning even when education is thought of as consisting of...