منابع مشابه
De Química
SYNTHESIS OF BIODIESEL: A CONTEXTUALIZED EXPERIMENT PROPOSAL FOR THE GENERAL CHEMISTRY LABORATORY. The contextualized understanding of concepts in Chemistry by students from other areas is a challenging task. In this experiment, the synthesis of biodiesel is done by base catalyzed transesterification of refined soy oil with methanol at room temperature and common glassware found in any chemistr...
متن کاملBombacaceae: a phytochemical review.
CONTEXT Bombacaceae is a small family of the order Malvales and contains about 28 genera and 200 species. Members of this family are not only showy ornamentals but they possess significant economical and commercial reputation as well. In addition, various plant parts of several species are widely used as foods and traditional medicines in many parts of the world. OBJECTIVE Chemical analyses o...
متن کاملHealth service use in a population covered by the Estratégia de Saúde da Família (Family Health Strategy).
OBJECTIVE To analyze health service use patterns in communities covered by the Estratégia de Saúde da Família (Family Health Strategy). METHODS Population-based cross-sectional study with a sample of 2,988 individuals, of all ages, living in areas covered by the Estratégia de Saúde da Família, in the city of Porto Alegre, Southern Brazil, between July and September 2003. Pre-coded questionnai...
متن کامل[Bolsa Família Program and child nutritional status: strategic challenges].
The main nutritional deficiencies during childhood, namely anemia and malnutrition, are predominantly related to socio-economic factors. Thus, as the Bolsa Família Program (BFP) is the main policy to combat poverty, it is expected that it will have an impact on child nutrition. The aim was to analyze the differences in the nutritional situation of children registered with the BFP of a municipal...
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ژورنال
عنوان ژورنال: Química Nova
سال: 1997
ISSN: 0100-4042
DOI: 10.1590/s0100-40421997000600010