Physical activity among Spanish adolescents: relationship with their relatives' physical activity - the AVENA study     

Martin-Matillas M  Ortega FB  Chillon P  Perez IJ  Ruiz JR  Castillo R  Gomez-Martinez S  Moreno LA  Delgado-Fernandez M  Tercedor P;AVENA Study 《Journal of sports sciences》2011,29(4):329-336

Identifying factors related to physical activity levels in young people is important for a more efficient health promotion. The aims of this study were to assess physical activity levels in a national sample of urban Spanish adolescents, and to examine the association between significant others' physical activity (father, mother, brother, sister, and close friends) and that of the adolescents. The present study comprised 2260 adolescents (1157 boys, 1103 girls) aged 13.0-18.5 years participating in the AVENA Study. Both the adolescents' physical activity and that of their relatives and close friends was assessed by questionnaire. The odds of being active were higher in boys than girls (odds ratio?=?2.79, 95% confidence interval?=?2.34-3.33) and tended to decrease across age groups in both boys and girls. Father's and older brother's physical activity was associated with boys' physical activity, while that of any significant other was associated with girls' physical activity. When both parents reported being active, boys had nearly two times higher odds of being active and girls had nearly three times higher odds of being active. The physical activity levels of Spanish adolescents are in line with those previously reported. Physical activity levels in girls are strongly related to the physical activity of any significant other, whereas physical activity levels in boys are only related to their male relatives' physical activity.  相似文献   

Culture and trade through the prism of technical art history: A study of Chinese export paintings     

Haida Liang  Lucia Burgio  Kate Bailey  Andrei Lucian  Chris Dilley  Sonia Bellesia 《文物保护研究》2014,59(5):S96-S99

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Negotiating second-language identities in and through border crossing     

Sonia Gallucci 《Compare》2014,44(6):916-937

In this article, I describe the ways in which two British university students negotiated their identity as second language learners during a year abroad in Italy and the extent to which their struggles helped them to ‘fit in’ into the new social and cultural contexts. Building upon the lived experiences of the two participants, I follow a poststructuralist discourse on identity, which considers identities as dynamic and in continuous evolution. In this article, I argue that the extent to which individuals are prepared to negotiate second-language identities, or conversely to resist them, can be directly influenced by the ways in which they perceive their relationships to the new contexts and by the ways in which such relationships are constructed over time and across space. I also argue that the continuous evolution of identities tends to change more rapidly in new sociocultural contexts, such as those embedded in specific experiences of border crossing.  相似文献   

Dose–response relations between preschool teachers’ exposure to components of professional development and increases in quality of their interactions with children     

Robert C. Pianta  Jamie DeCoster  Sonia Cabell  Margaret Burchinal  Bridget K. Hamre  Jason Downer  Jennifer LoCasale-Crouch  Amanda Williford  Carollee Howes 《Early childhood research quarterly》2014

The present study examined the pattern of associations over time between the quality of observed interactions and exposure to features of an effective coaching model for 170 preschool teachers enrolled in a study investigating professional development impacts. Using a treatment-on-the-treated approach, teachers exposed to a greater number of cycles of coaching showed more improvement in classroom interactions over the year. More specifically, of the two components of treatment examined, video exemplars and individual coaching prompts, exposure to prompts was associated with growth from baseline in instructionally supportive interactions while watching video exemplars was associated with growth in emotionally supportive behaviors in analysis of linear effects. Watching emotional support video exemplars was negatively associated with growth in classroom organization behaviors. The non-linear pattern of these associations suggested that the initial dosage of prompts created observable effects on instructional support, but after a certain point additional dosage was not effective. Conversely, initial dosage did not create observable effects on emotional support, but improvement was observed after exposure to a certain minimum dosage of time watching video exemplars. The results have implications for the design, delivery, and focus of professional development for early childhood educators.  相似文献   

LEARNING POTENTIAL ASSESSMENT AND ADAPTATION TO THE EDUCATIONAL CONTEXT: THE USEFULNESS OF THE ACFS FOR ASSESSING IMMIGRANT PRESCHOOL CHILDREN     

M. Dolores Calero  Sara Mata  Rosario Carles  Carmen Vives  Sonia López‐rubio  Antonio Fernández‐parra  Elena Navarro 《Psychology in the schools》2013,50(7):705-721

The objective of this study was to test the usefulness of dynamic assessment for determining cognitive abilities such as classification, auditory and visual memory, pattern sequences, perspective taking, verbal planning, learning potential, and metacognition in immigrant preschool children with and without competence in the dominant language (Spanish). One hundred seventy‐six preschool‐children were distributed in three groups according to the cultural background of their parents (native Spanish/Spanish‐speaking immigrants/non‐Spanish speaking immigrants). The children were assessed by means of the K‐BIT, the Application of Cognitive Functions Scale (ACFS), and metacognition, language competence and academic performance estimates. The results show that although there are initial differences in execution between the two groups (Spanish/immigrants), there are no differences with regard to learning potential. The study also demonstrates the importance of behavioral, attitudinal, and metacognitive variables in children's test execution and academic performance.  相似文献   

Continuing educational participation among children in care in five countries: some issues of social class     

Claire Cameron  Sonia Jackson  Hanan Hauari  Katie Hollingworth 《教育政策杂志》2013,28(3):387-399

Young people who have spent all or part of their childhoods in public care are at particular risk of social exclusion as adults and yet the pathway out of exclusion identified by policy-makers at both European and national levels, namely, education, is very difficult to access. Using data from a five-country study of the post-compulsory educational pathways of young people in public care, this paper examines the rates of participation of young people in further and higher education and considers what might account for the gap, looking at two factors: the impact of background social class on educational support and the educational intentions and practices of the care system. The paper concludes by considering the policy context and some possible tensions between policy aims and young people’s contexts and experiences.  相似文献   

Using social media to facilitate knowledge transfer in complex engineering environments: a primer for educators     

Glen Murphy  Sonia Salomone 《European Journal of Engineering Education》2013,38(1):70-84

While highly cohesive groups are potentially advantageous they are also often correlated with the emergence of knowledge and information silos based around those same functional or occupational clusters. Consequently, an essential challenge for engineering organisations wishing to overcome informational silos is to implement mechanisms that facilitate, encourage and sustain interactions between otherwise disconnected groups. This paper acts as a primer for those seeking to gain an understanding of the design, functionality and utility of a suite of software tools generically termed social media technologies in the context of optimising the management of tacit engineering knowledge. Underpinned by knowledge management theory and using detailed case examples, this paper explores how social media technologies achieve such goals, allowing for the transfer of knowledge by tapping into the tacit and explicit knowledge of disparate groups in complex engineering environments.  相似文献   

Field-Based Evaluation of Two-Tiered Instruction for Enhancing Kindergarten Phonological Awareness     

C. Melanie Schuele PhD  Laura M. Justice  Sonia Q. Cabell  Kathy Knighton  Beverly Kingery  Marvin W. Lee 《Early education and development》2013,24(5):726-752

Research Findings: This study reports on the outcomes of a multisite, two-tiered, response-to-intervention instructional model for delivering phonological awareness instruction and intervention to kindergartners. Fifty-seven kindergartners from 3 classrooms participated in a supplemental phonological awareness program, and 56 kindergartners from 3 classrooms received the prevailing school-adopted literacy curriculum. All children in the supplemental condition received supplemental classroom-based phonological awareness instruction in addition to the adopted literacy curriculum. At mid-year, 6 low literacy achievers were identified in each supplemental classroom (n = 18) to participate in an additional 12-week small-group intervention. The classroom-based supplemental curriculum did not produce statistically significant gains for typically achieving children on measures of letter–sound knowledge, word recognition, or developmental spelling. However, an add-on tier of supplemental instruction exerted a substantial advantage for low-achieving children on a measure of developmental spelling. Practice or Policy: Results suggest that a 2-tiered intervention model provides an effective means for improving the literacy outcomes of low-achieving kindergarten children.  相似文献   

Special and inclusive education in the Eastern Caribbean: policy practice and provision     

Ann Cheryl Armstrong  Derrick Armstrong  Carlyle Lynch  Sonia Severin 《International Journal of Inclusive Education》2013,17(1):71-87

The countries of the Eastern Caribbean have for more than a decade been committed to the implementation of a common educational reform strategy. At the heart of this strategy has been the policy of 'education for all', which includes establishing educational support services for children with special educational needs. In the past, many disabled children and children with learning difficulties have been excluded from the education system in these countries. For many more children, attendance at school has not given meaningful access to educational opportunities. This article discusses research carried out by the authors and reports on the implementation of the Reform Strategy and on the barriers to inclusive education that persist in the region.  相似文献   

On-chip collection of particles and cells by AC electroosmotic pumping and dielectrophoresis using asymmetric microelectrodes     

Melvin EM  Moore BR  Gilchrist KH  Grego S  Velev OD 《Biomicrofluidics》2011,5(3):34113-3411317

The recent development of microfluidic "lab on a chip" devices requiring sample sizes <100 μL has given rise to the need to concentrate dilute samples and trap analytes, especially for surface-based detection techniques. We demonstrate a particle collection device capable of concentrating micron-sized particles in a predetermined area by combining AC electroosmosis (ACEO) and dielectrophoresis (DEP). The planar asymmetric electrode pattern uses ACEO pumping to induce equal, quadrilateral flow directed towards a stagnant region in the center of the device. A number of system parameters affecting particle collection efficiency were investigated including electrode and gap width, chamber height, applied potential and frequency, and number of repeating electrode pairs and electrode geometry. The robustness of the on-chip collection design was evaluated against varying electrolyte concentrations, particle types, and particle sizes. These devices are amenable to integration with a variety of detection techniques such as optical evanescent waveguide sensing.  相似文献