Leitura, literacia e escola : construções (im)perfeitas

Neste trabalho, propomo-nos abordar o tema da leitura, conceito constantemente recontextualizado, fruto de dinâmicas modernas, consideradas mais integradoras. Com efeito, neste mundo da globalização e da informação, parece nunca terem existido tantos livros e tantos leitores, reiterando-se, continuamente, o lugar imprescindível da prática da leitura. Haverá, certamente, razões justificativas do tipo de leitor e das diversas situações de leitura, mas será que as leituras e o modo como elas são feitas configuram o estilo de leitor que esta sociedade em mudança exige? Nesta perspetiva, à escola, enquanto cenário de aprendizagens mais formais, impõe-se um grande desafio, esperando-se que saiba adequar os currículos às exigências da complexidade crescente do mundo contemporâneo, operando transferências de vida, para ela própria se transformar em escola-vida

Rochas ornamentais do Maciço Calcário Estremenho : breve caraterização dos recursos, dos centros de produção e delimitação preliminar de áreas potenciais

O Maciço Calcário Estremenho é uma unidade geomorfológica do país onde afloram em grande extensão rochas de idade jurássica. Particularmente as do Jurássico Médio têm sido alvo de intensa exploração de blocos para fins ornamentais. Tendo como base uma apresentação sucinta de todos os núcleos extrativos desta região do país, mas com ênfase nas particularidades respeitantes às unidades litostratigráficas alvo de exploração em cada um deles, apresenta-se uma demarcação preliminar de áreas potenciais para a produção deste tipo de recursos. Essas áreas, sendo de âmbito regional, servem de apoio à decisão política e estratégica de atuação no território e constituem base fundamental de trabalho a estudos de maior pormenor que visem determinar a sua efetiva aptidão a nível local

Potencialidades das rochas graníticas no concelho de Nisa

O presente texto visa dar a conhecer os resultados obtidos a respeito das potencialidades das rochas graníticas existentes na área do município. Estes resultados foram obtidos no âmbito de um trabalho mais vasto de inventariação, caracterização e avaliação das potencialidades em recursos minerais do concelho de Nisa, o qual foi objecto de um protocolo de colaboração com carácter pioneiro entre a autarquia e o LNEG

The "Alpalhão Granite" (Alentejo, Portugal) as a potential ornamental stone

“Alpalhão granite”, also called SPI, is used as a high quality ornamental stone for interior and exterior applications. It is fine grained and equigranular, and has disseminated feldspar phenocrysts showing a homogeneous bluish grey colour. The SPI was mapped and scanlines (14) and drill cores (4) were carried out for lithofacies and joints characterization, besides petrographical study. Three of the 5 granite outcrops were studied regarding their potential for ornamental blocks exploitation (Carvalhal, Pinheiral and Ribeira de Sor). The Carvalhal area has generally no potential, due to intense fracturing and frequent heterogeneities except for drill core SCA1 area. The Pinheiral area has been exploited in all its extent, but still assures 368,800m3 estimated resources of good granite at depth. Ribeira de Sor area presents a good potentiality for commercial blocks in the eastern zone and a limited potential in the western area due to subsurface fracturing and chromatic changes.</jats:p

Report Card on Physical Activity for Children and Youth

Background: This article describes the procedures and development of the rst Portuguese Report Card on Physical Activity in Children and Adolescents. Methods: Comprehensive searches for data related to indicators of physical activity (PA) were completed by a committee of physical activity and sports specialists. Grades were assigned to each indicator consistent with the process and methodology outlined by the Active Healthy Kids Canada Report Card model. Results: Nine indicators of PA were graded. The following grades were assigned: Overall Physical Activity Levels, D; Organized Sport Participation, B; Active Play, D; Active Transportation, C; Sedentary Behaviors, D; Family and Peers, C; Schools, B; Community and the Built Environment, D; and Government, C. Conclusions: Portuguese children and adolescents do not reach suf cient physical activity levels and spend larger amounts of time spent in sedentary behaviors compared with recommendations. Effective policies of PA promotion and implementation are needed in different domains of young people’s daily lives

Abdominal obesity in adolescents: Development of age-specific waist circumference cut-offs linked to adult IDF criteria

Objectives: The purpose of this study was to develop age- and sex-specific waist cir-cumference (WC) cut-off points, linked to older adolescent and adult criteria forabdominal obesity, to be applied to children in the clinical setting.Methods: A total of 16,788 adolescents aged 10 to 16 years were assessed for WC.Smoothed age and sex-specific WC curves were obtained using Cole’s LMS method.Results: Percentiles that corresponded to the International Diabetes Federation (IDF)recommendations used for older adolescents and adults (161 years old) were the97thpercentile for boys and the 87thpercentile for girls. Using these cutoffs, a total of368 boys and 1138 girls were categorized as abdominally obese, in contrast to 1654boys and 987 girls that were identified using the current IDF pediatric criteria (90thpercentile).Conclusions: We provide age- and sex-specific cut-off points that can be used toidentify abdominal obesity in adolescents. The present findings provide a tool thatcan be used in the clinical setting for the early detection and prevention of adult obe-sity. Population-specific cutoffs may be required for pediatric ages to diagnosechildren at risk

Results from Portugal’s 2018 Report Card on Physical Activity for Children and Youth

Available evidence indicates that there are still a large proportion of Portuguese children and adolescents that are not sufficiently active and that exceed the recommended levels of screen-time. In Portugal, virtually all students, enrolled in formal education, attain regular Physical Education classes, which is of significance