Segurança no circo : questão de prioridade = Circus safety: a priority issue

Universidade Estadual de Campinas . Faculdade de Educação Física

Futebol e sociedade : as manifestações da torcida

Universidade Estadual de Campinas. Faculdade de Educação Física

Uso de membranas de Nafion para a construção de sensores ópticos para medidas de pH

The behaviour of Nafion® polymeric membranes containing acid-base dyes, bromothymol blue (BB) and methyl violet (MV), were studied aiming at constructing an optical sensor for pH measurement. BB revealed to be inadequate for developing sensing phases due to the electrostatic repulsion between negative groups of their molecules and the negative charge of the sulfonate group of the Nafion®, which causes leaching of the dye from the membrane. On the other hand, MV showed to be suitable due to the presence of positive groups in its structure. The membrane prepared from a methanolic solution whose Nafion®/dye molar ratio was 20 presented the best analytical properties, changing its color from green to violet in the pH range from 0.6 to 3.0. The membrane can be prepared with good reproducibility, presenting durability of ca. 6 months and response time of 22 s, making possible its use for pH determination in flow analysis systems.

Insegurança alimentar em domicílios brasileiros com crianças menores de cinco anos

This article analyzes food insecurity and hunger in Brazilian families with children under five years of age. This was a nationally representative cross-sectional study using data from the National Demographic and Health Survey on Women and Children (PNDS-2006), in which the outcome variable was moderate to severe food insecurity, measured by the Brazilian Food Insecurity Scale (EBIA). Prevalence estimates and prevalence ratios were generated with 95% confidence intervals. The results showed a high prevalence of moderate to severe food insecurity, concentrated in the North and Northeast regions (30.7%), in economic classes D and E (34%), and in beneficiaries of conditional cash transfer programs (36.5%). Multivariate analysis showed that the socioeconomic relative risks (beneficiaries of conditional cash transfers), regional relative risks (North and Northeast regions), and economic relative risks (classes D and E) were 1.8, 2.0 and 2.4, respectively. Aggregation of the three risks showed 48% of families with moderate to severe food insecurity, meaning that adults and children were going hungry during the three months preceding the survey.

Qualidade de vida na empresa : conceitos e práticas em uso (no segmento do comércio de bens e serviços na cidade de São Paulo)

Universidade Estadual de Campinas . Faculdade de Educação Física

Autoconceito e capacidades fisicas de idosos depessivos e não depressivos participantes de um programa de atividade fisica de longa duração

Universidade Estadual de Campinas . Faculdade de Educação Física

O lazer e a residência secundária em Angra dos Reis-RJ = : The leisure and the second homes in Angra dos Reis, RJ

Universidade Estadual de Campinas . Faculdade de Educação Física

Validade de equipamento eletronico informatizado para analise de movimentos tecnicos do voleibol : um estudo na categoria juvenil

Universidade Estadual de Campinas . Faculdade de Educação Física