Implementing the Rights of the Child Six Reasons Why the Human Rights of Children Remain a Constant Challenge     

David  Paulo 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2002,48(3-4):259-263

International Review of Education -  相似文献   

Improving cognitive and physical function through 12-weeks of resistance training in older adults: Randomized controlled trial     

Paulo Ricardo Pereira Dos Santos  Bruno Remígio Cavalcante  Andreya Karolyne Dos Santos Vieira  Marcos Duarte Guimarães  Antônio Marconi Leandro Da Silva  Anderson Da Costa Armstrong 《Journal of sports sciences》2020,38(17):1936-1942

ABSTRACT

We performed a randomized, controlled trial to analyse the effects of resistance training (RT) on cognitive and physical function among older adults. Fifty participants (mean age 67 years, ~60% woman) were randomly assigned to an RT program or a control group. Participants allocated to RT performed three sets of 10-15RM in nine exercises, three times per week, for 12-weeks. Control group did not perform any exercise. Variables included cognitive (global and executive function) and physical function (gait, mobility and strength) outcomes. At completion of the intervention, RT was shown to have significantly mitigated the drop in selective attention and conflict resolution performance (Stroop test: -494.6; 95%CI: -883.1; ?106.1) and promoted a significant improvement in working memory (digit span forward: -0.6; 95%CI: ?1.0; ?0.1 and forward minus backward: -0.9; 95% CI: ?1.6; ?0.2) and verbal fluency (animal naming: +1.4, 95%CI 0.3, 2.5). No significant between-group differences were observed for other cognitive outcomes. Regarding physical function, at completion of the intervention, the RT group demonstrated improved fast-pace gait performance (?0.3; 95% CI: ?0.6; ?0.0) and 1-RM (+21.4 kg; 95%CI: 16.6; 26.2). No significant between-group differences were observed for other mobility-related outcomes. In conclusion, RT improves cognitive and physical function of older adults.  相似文献   

Innovative moments and narrative change in career counselling: a case study     

da Silva  Cláudia Sampaio Corrêa  Teixeira  Marco Antônio Pereira  Cardoso  Paulo  Fernández-Navarro  Pablo  Gonçalves  Miguel M.  Duarte  Maria Eduarda 《International Journal for Educational and Vocational Guidance》2020,20(3):635-652

International Journal for Educational and Vocational Guidance - This case study of an undecided university student has two aims: to assess the effect of life design career counselling on...  相似文献   

Chemistry and Chemical Education Through Text and Image: Analysis of Twentieth Century Textbooks Used in Brazilian Context     

Karina Ap F. D. Souza  Paulo Alves Porto 《Science & Education》2012,21(5):705-727

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A Didactic Sequence of Elementary Geometric Optics Informed by History and Philosophy of Science     

Paulo Maurício  Bianor Valente  Isabel Chagas 《International Journal of Science and Mathematics Education》2017,15(3):527-543

The concepts and instruments required for the teaching and learning of geometric optics are introduced in the didactic process without a proper didactic transposition. This claim is secured by the ample evidence of both wide- and deep-rooted alternative concepts on the topic. Didactic transposition is a theory that comes from a reflection on the teaching and learning process in mathematics but has been used in other disciplinary fields. It will be used in this work in order to clear up the main obstacles in the teaching-learning process of geometric optics. We proceed to argue that since Newton’s approach to optics, in his Book I of Opticks, is independent of the corpuscular or undulatory nature of light, it is the most suitable for a constructivist learning environment. However, Newton’s theory must be subject to a proper didactic transposition to help overcome the referred alternative concepts. Then is described our didactic transposition in order to create knowledge to be taught using a dialogical process between students’ previous knowledge, history of optics and the desired outcomes on geometrical optics in an elementary pre-service teacher training course. Finally, we use the scheme-facet structure of knowledge both to analyse and discuss our results as well as to illuminate shortcomings that must be addressed in our next stage of the inquiry.  相似文献   

Brazil in the Age of Electronic Commerce     

Paulo Bastos Tigre 《The Information Society》2003,19(1):33-43

E-commerce is growing rapidly in Brazil, led by information-intensive and transaction-intensive sectors such as finance, manufacturing, and retail/wholesale. However, Brazil's highly uneven income distribution is a major barrier for B2C diffusion. Government policies have emphasized promotional or enabling initiatives such as e-procurement, tax filings, and providing Internet access to social institutions. E-commerce legislation is just now being developed, and decisions on taxation are being negotiated in the context of international agreements. E-commerce raises issues for Brazil in terms of its relationship to the global economy. Although most online purchases involve imported goods, e-commerce also offers opportunities to participate in international value chains.  相似文献   

On Rest-from-Deliberate-Learning as a Mechanism for the Spacing Effect: Commentary on Chen et al. (2021)     

Sana  Faria  Yan  Veronica X.  Carvalho  Paulo F. 《Educational Psychology Review》2022,34(3):1843-1850

Educational Psychology Review - In their recent paper, Chen et al. (Educational Psychology Review, 2021) propose that rest periods between deliberate learning characterize the spacing effect and...  相似文献   

The indebtedness of Portuguese soccer teams--looking for determinants     

Mourao P 《Journal of sports sciences》2012,30(10):1025-1035

This work tests determinants of the indebtedness of Portuguese soccer teams using the sample of teams playing in the Portuguese major league from the 1999-2000 season until the 2005-2006 season. This is a major issue related to both the medium-term solvency of the Portuguese professional soccer sector and the solvency of the European soccer market. Our results show that past debt obligations, the market area, the rank of each team and, particularly, the costs of wages exert a positive and significant effect on the debt ratio for each soccer team. These results support suggestions seeking to promote the sustainability of the soccer sector, namely, the imposition of wage caps, a new regulation limiting the increasing debt ratios and the redistribution of TV rights via a more egalitarian system.  相似文献   

3-min all-out effort on cycle ergometer is valid to estimate the anaerobic capacity by measurement of blood lactate and excess post-exercise oxygen consumption     

Alessandro Moura Zagatto  Paulo Eduardo Redkva  Rodrigo Araújo Bonetti de Poli  Joel Abraham Martinez González  Jeniffer Zanetti Brandani  Thiago Penedo 《European Journal of Sport Science》2019,19(5):645-652

The purpose of this study was to investigate the use of a single 3-min all-out maximal effort to estimate anaerobic capacity (AC) through the lactate and excess post-exercise oxygen consumption (EPOC) response methods (AC_{[La^?]+EPOCfast}) on a cycle ergometer. Eleven physically active men (age?=?28.1?±?4.0?yrs, height?=?175.1?±?4.2?cm, body mass?=?74.8?±?11.9?kg and ?O_2max?=?40.7?±?7.3?mL?kg^?1?min^?1), participated in the study and performed: i) five submaximal efforts, ii) a supramaximal effort at 115% of intensity of ?O_2max, and iii) a 3-min all-out maximal effort. Anaerobic capacity was estimated using the supramaximal effort through conventional maximal accumulated oxygen deficit (MAOD) and also through the sum of oxygen equivalents from the glycolytic (fast component of excess post-exercise oxygen consumption) and phosphagen pathways (blood lactate accumulation) (AC_{[La^?]+EPOCfast}), while during the 3-min all-out maximal effort the anaerobic capacity was estimated using the AC_{[La^?]+EPOCfast} procedure. There were no significant differences between the three methods (p?>?0.05). Additionally, the anaerobic capacity estimated during the 3-min all-out effort was significantly correlated with the MAOD (r?=?0.74; p?=?0.009) and AC_{[La^?]+EPOCfast} methods (r?=?0.65; p?=?0.029). Therefore, it is possible to conclude that the 3-min all-out effort is valid to estimate anaerobic capacity in physically active men during a single cycle ergometer effort.  相似文献   

Netflix: global hegemon or facilitator of frictionless digital trade?     

Luis Aguiar  Joel Waldfogel 《Journal of Cultural Economics》2018,42(3):419-445

Trade in cultural products has traditionally been constrained by a combination of law and technology. In Europe, digital sellers based in a given EU country are not always able to distribute across borders. In January 2016, US-based Netflix announced an expansion to 243 countries, accomplishing cross-border distribution through business strategy. Changes in law or technology that facilitate cross-national cultural trade have traditionally drawn the concern of observers worried about the cultural heritage—and products—of small markets. The expansion raises questions about what Netflix is doing. Is it a cultural hegemon, distributing US fare into 243 countries? Or it is a facilitator of free trade, making the products of even small countries more available outside their home markets (relative to traditional distribution)? And how does the curated model—which limits the number of movies the platform wants to distribute—affect Netflix’s function? To shed light on these questions, we develop a new measure of the global availability of a repertoire, the value-weighted geographic reach. Using this measure we find, first, that Netflix makes many of the works from a wide variety of countries available in many other countries. Second, we find that theatrical distribution strongly advantages US-origin fare. Third, the pattern of origin repertoire available through Netflix also favors the USA, although less overwhelmingly. Moreover, many countries are relatively advantaged by their Netflix availability patterns. Finally, we discuss some issues related to the Netflix platform, including horizontal competition with other platforms, vertical struggles with content providers (and its backward integration into production), and we speculate on possible challenges for regulators.  相似文献