Genome sequence of Rhizobium sullae HCNT1 isolated from Hedysarum coronarium nodules and featuring peculiar denitrification phenotypes

The genome sequence of Rhizobium sullae strain HCNT1, isolated from root nodules of the legume Hedysarum coronarium growing in wild stands in Tuscany, Italy, is described here. Unlike other R. sullae strains, this isolate features a truncated denitrification pathway lacking NO/N2O reductase activity and displaying high sensitivity to nitrite under anaerobic conditions

PREVALÊNCIA DE SOBREPESO E OBESIDADE EM PRÉ-ESCOLARES DE ALTO NÍVEL SÓCIOECONÔMICO DA CIDADE DE ARACAJU-SE

Model of Study: Prevalence Study. Objective: The objective of the present study was to esteem the prevalence of overweight and obesity among preschool children of high level economical partner of Aracaju-Sergipe city, Brazil, measured in a direct way. Methods: 243 children, being 51% of the female sex from 3,5 to 5,5 years old of high level economical partner, in agreement to National Association of Company of Research was appraised with relationship to the weight and the stature, to calculate IMC and to classify them in normal, overweight or obesity in agreement with the criteria of it Cole et al. Results: The prevalence of overweight was 16% and the obesity of 7,9%, and there were not significant differences in the prevalence of overweight and obesity between boys and girls (p > 0,05), as well as there were not differences among the groups of age for each sex (p > 0,05). Conclusion: The overweight and the obesity were made presents in a sample of children from 3,5 to 5,5 years of age of high purchasing power of the Aracaju city.   Modelo de Estudo: Estudo de Prevalência. O objetivo do presente estudo foi estimar a prevalência de sobrepeso e obesidade em pré-escolares de alto nível socioeconô-mico da cidade de Aracaju-Sergipe, Brasil, medido de forma direta. Métodos: 243 crianças, sendo 51% do sexo feminino de 3,5 a 5,5 anos de idade de alto nível socioeconômico, segundo critérios da Associação Nacional de Empresa de Pesquisa, foram avaliadas quanto ao peso e a estatura, para se calcular o IMC e classificá-las em normal, sobrepeso ou obesidade de acordo com os critérios de Cole et al. Resultados: Na amostra estudada a prevalência de sobrepeso foi de 16% e a obesidade de 7,9%, sendo que não houve diferenças significativas na prevalência de sobrepeso e obesidade entre meninos e meninas (p > 0,05). Não houve também diferenças entre os grupos de idade para cada sexo (p > 0,05). Conclusão: O sobrepeso e a obesidade se fizeram presentes em uma amostra de crianças de 3,5 a 5,5 anos de idade de alto poder aquisitivo da cidade de Aracaju-SE.  

Lower aerobic fitness levels among adolescents of a city in southern Brazil

Study design: Cross sectional study. Objective: To analyze the association between lower levels of aerobic fitness and sociodemographic factors, lifestyle and excess body fatness in students. Methods: Study with 84 adolescents aged 14 to 19 years from southern Santa Catarina. Aerobic fitness was assessed by the modified Canadian Aerobic Fitness test-mCAFT. Sociodemographic variables, sexual maturation and lifestyle were assessed self-administered questionnaire. Excess body fatness assessed the sum of skin folds triceps and subscapular. Results: The prevalence of lower level of aerobic fitness was 83.3%. The female gender (OR: 5,99; IC95%: 1,40-25,52) and adolescents little physically active (OR: 5,62; IC95%: 1,21-26,38) had low levels aerobic fitness. Conclusion: The factors had associated with low levels of aerobic fitness were females and physical inactivityModelo do estudo: Estudo analítico transversal. Objetivo: Analisar a associação entre baixos níveis de aptidão aeróbia e fatores sociodemográficos, estilo de vida e excesso de adiposidade corporal em estudantes. Método: Estudo com 84 adolescentes de 14 a 19 anos do sul de Santa Catarina. A aptidão aeróbia foi avaliada pelo teste Canadense modificado de Aptidão Aeróbia–mCAFT. Variáveis sociodemográficas, maturação sexual e estilo de vida foram avaliados por questionário autoadministrado. O excesso de adiposidade corporal foi avaliado pelo somatório das dobras cutâneas do tríceps e subescapular. Resultados: A prevalência de baixo nível de aptidão aeróbia foi 83,3%. O sexo feminino (OR: 5,99; IC95%: 1,40-25,52) e os adolescentes que eram pouco ativos fisicamente (OR: 5,62; IC95%: 1,21- 26,38) tiveram maiores chances de apresentar baixo nível de aptidão aeróbia. Conclusão: Os fatores que estiveram associados a baixos níveis de aptidão aeróbia foram o sexo feminino e a inatividade físic

O que é mais eficiente para perda de peso: exercício contínuo ou intermitente? com ou sem dieta? uma revisão baseada em evidências

Modelo do estudo: Revisão sistemática de literatura Objetivo: Apresentar evidências científicas acerca do tipo de exercício aeróbio (Contínuo vs. Intermitente) que resulta em melhores efeitos na redução do peso corporal. Metodologia: Foi realizada revisão da literatura nas bases de dados Pubmed, Medline, ISI Web of Knowledge, Ebsco Host e Scopus de artigos a partir do ano 2000. Resultados: A combinação do exercício aeróbio e restrição calórica podem maximizar a perda de peso em indivíduos com sobrepeso. Ao comparar os dois tipos de exercícios aeróbios, a maior parte das evidências sugerem superioridade do intermitente em comparação ao contínuo na perda de peso. Conclusão: Intervenções realizadas com dieta restrita combinadas com programas de exercícios realizados de três a seis vezes semanais, de preferência intermitente, em intensidade moderada a alta, apresentaram resultados mais significativos para perda de peso em comparação ao exercício contínuo.Study design: Systematic literature review Objective: To present scientific evidence about the type of aerobic exercise (Continuous vs. Intermittent) that results in better effects on reducing body weight. Methodology: Literature review was performed on Pubmed, Medline, ISI Web of Knowledge, Ebsco Host and Scopus of articles from the year 2000. Results: The combination of aerobic exercise and caloric restriction can maximize weight loss in overweight individuals. By comparing the two types of aerobic exercises, most evidence suggests superiority of intermittent exercise compared to continuous exercise in weight loss. Conclusion: Interventions performed with restricted diet combined with exercise programs performed from three to six times weekly, preferably intermittent, from moderate to high intensity, showed more significant results for weight loss compared to continuous exercise

Sedentary behavior in adolescents in small city in the south of the country

Study design: Cross-sectional Study. Objective: To investigate the prevalence of sedentary behavior based on screen time and demographic and socioeconomic factors associated in adolescents. Method: The study was conducted in a small town of Santa Catarina by applying a self-reported questionnaire on television, video game and computer use and demographic and socioeconomic factors. Results: The prevalence of sedentary behavior was 90.5% (95% CI: 82.1-95.8). The prevalence of sedentary behavior for television use was 60.7% (95% CI: 49.4-71.1), followed by computer use, 38.1% (95% CI: 27.7- 49.3) and video game use, 11.9% (95% CI: 5.8-20.8). Boys used more video games. Students of the night shift and low economic status had longer computer use. Adolescents who did not work and whose parents studied eight years or less had higher exposure to television use. Conclusion: The prevalence of sedentary behavior based on screen time was high in adolescents from a small town in southern Brazil, and those who studied in the night shift and parents that studied eight years or more were less likely to be exposed to excessive television useModelo do Estudo: Estudo Transversal. Objetivo: Investigar a prevalência de comportamento sedentário baseado em tempo de tela e os fatores demográficos e socioeconômicos associados em adolescentes. Método: A pesquisa foi realizada em uma cidade de pequeno porte de Santa Catarina, onde foi aplicado questionário auto relatado de uso de televisão, videogame, computador, fatores demográficos e socioeconômicos. Resultados: A prevalência de comportamento sedentário foi de 90,5% (IC95%: 82,1-95,8). A prevalência de comportamento sedentário para uso de televisão foi de 60,7% (IC95%: 49,4-71,1), seguido do uso de computador, 38,1% (IC95%: 27,7-49,3) e, uso de vídeo game 11,9% (IC95%: 5,8-20,8). Os meninos utilizaram o videogame por mais tempo. Estudantes do turno noturno e de baixo nível econômico apresentaram maior tempo de uso de computador. Adolescentes que não trabalhavam e que os pais estudaram oito anos ou menos tiveram maior exposição ao uso de televisão. Conclusão: A prevalência de comportamento sedentário baseado em tempo de tela foi elevada em adolescentes de uma escola de uma cidade de pequeno porte do sul do Brasil, sendo que aqueles que estudavam à noite e que os pais estudaram oito anos ou mais tiveram menos chances de estarem expostos ao uso excessivo de televisã

Embedded System for Real Color Composition in Experimental Physics

Software can be considered educational when properly contextualized in a relationship of teaching and learning. This paper describes an embedded system and an educational software developed and applied in experimental physics to real and virtual colors composition. The educational system developed allows student interaction by voice commands, which makes the assimilation process of red/green/blue (RGB) color formation concepts more didactic and playful. The application of educational software in experiments also allows to verify, in real time, the influence of programs change on the physical phenomena and stimulates the logical reasoning development and consequently the autonomy of the students, to the measure that can raise hypothesis, make modifications in the programming and take off conclusions from the practical results obtained

Testing validity of FitnessGram in two samples of US adolescents (12–15 years)

Background This study examined the validity of the FitnessGram® criterion-reference cut-points for cardiorespiratory fitness (CRF) based on two samples of US adolescents (aged 12–15 years). This study also established the CRF cut-points for metabolically healthy weight status based on a recent national fitness survey for the purposes of cross-validating with pre-existing cut-points including FitnessGram. Methods Two cross-sectional data from the 2003–2004 National Health and Nutrition Examination Survey (NHANES) (n = 378) and 2012 NHANES National Youth Fitness Survey (NNYFS) (n = 451) were used. CRF (estimated V˙ role= presentation style= box-sizing: border-box; margin: 0px; padding: 0px; display: inline-block; line-height: normal; font-size: 16.2px; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; position: relative; \u3eV˙O2max in mL/kg/min) was estimated from a submaximal exercise test. CRF categories based on FitnessGram cut-points, a clustered cardiometabolic risk factors score and weight status were used. A series of Receiver Operating Characteristic (ROC) curve analyses were conducted to identify age- and sex-specific CRF cut-points that were optimal for metabolically healthy weight status. Results Based on FitnessGram cut-points, having high risk CRF, but not low risk CRF, was associated with high cardiometabolic risk (OR = 3.17, 95% CI = 1.14–8.79) and unhealthy weight status (OR = 5.81, 95% CI = 3.49–9.68). The optimal CRF cut-points for 12-13-year-olds and 14-15-year-olds were 40 and 43 mL/kg/min in males and 39 and 34 mL/kg/min in females, respectively. Compared to meeting new CRF cut-points, not meeting new CRF cut-points was associated with higher odds of showing high cardiometabolic risk (OR = 2.91, 95% CI = 1.47–5.77) and metabolically unhealthy weight status (OR = 4.47, 95% CI = 2.83–7.05). Conclusion FitnessGram CRF cut-point itself has rarely been scrutinized in previous literature. Our findings provide partial support for FitnessGram based on two samples of US adolescents. CRF cut-points established in this study supports international criterion-referenced cut-points as well as FitnessGram cut-points only for males. FitnessGram should be continuously monitored and scrutinized using different samples

Television Time among Brazilian Adolescents: Correlated Factors are Different between Boys and Girls

Objective. The aim of this study was to identify the prevalence of excess television time and verify correlated factors in adolescent males and females. Methods. This cross-sectional study included 2,105 adolescents aged from 13 to 18 years from the city of Aracaju, Northeastern Brazil. Television time was self-reported, corresponding to the time spent watching television in a typical week. Several correlates were examined including age, skin color, socioeconomic status, parent education, physical activity level, consumption of fruits and vegetables, smoking status, alcohol use, and sports team participation. Results. The prevalence excess television time (≥2 hours/day) in girls and boys was 70.9% and 66.2%, respectively. Girls with low socioeconomic status or inadequate consumption of fruits and vegetables were more likely to have excess television time. Among boys, those >16 years of age or with black skin color were more likely to have excess television time. Conclusions. Excess television time was observed in more than two-thirds of adolescents, being more evident in girls. Correlated factors differed according to sex. Efforts to reduce television time among Brazilian adolescents, and replace with more active pursuits, may yield desirable public health benefits

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