960 resultados para População urbana
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This work evaluated the hydrogeochemistry of the Guarani Aquifer in the urban area of Ribeirão Preto, São Paulo State. Thirty one sampling points were established and it was carried out field campaigns in 7 and 8 July 2005, analyzing the following parameters: conductivity, temperature, pH, turbidity, color, dry residue, dissolved oxygen, Ca2+, Mg2+, Na+, K+, Fe3+, Al3+, HCO3-, SO42-, PO43-, NO3-, Cl- and F-. The results indicated that the groundwaters in the urban area of Ribeirão Preto pH possess slightly acid, low conductivity, turbidity, color and dissolved oxygen inside the limits established for drinking waters. The ionic composition indicated that the groundwaters have low cations and anions concentration, being they classified as soft water and calcium-bicarbonated. Statistical tests suggested that conductivity and pH are controlled for the calcite dissolution (CaCO3) during the water/rock interaction process. Besides, it is possible to conclude that the high NO3- and PO43- concentrations found in the groundwater in the urban area of Ribeirão Preto are originated due to anthropogenic activities.
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El proyecto en torno a las condiciones socio-laborales del servicio domestico en Colombia es amplio y procura la transformacion ideologica de lo que se entiende por servicio domestico. El primer material educativo consiste en un boletin basico de las normas laborales como paso inicial de seminarios y charlas sobre la legislacion complementada con asesoria legal a las propias afectadas. Estas acciones se han realizado en Bogota y se estan iniciando en Cali y durante un ano se han atendido a 3.500 personas en liquidacion de sus funciones y a 1.500 en asistencia juridica y legal (p164). La segunda etapa del proyecto consiste en trabajar no solo con la empleada sino tambien con la patrona y se encuentra en sus inicios. En terminos globales, el proyecto ha difundido material de utilidad que esta actualmente en manos de abogados y juristas, habiendose realizado seminarios con diversas instancias del Ministerio del Trabajo.
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Eucalyptus camaldulensis has great importance in Brazil because of their phenotypic plasticity for different environmental conditions, as soils, altitudes and rainfall. This study is an investigation of a base population of E. camaldulensis from Australia through a progeny test implanted in Selvíria, MS. The trial was established in a randomized block design, with 25 families and 60 replications of single tree plots. Genetic parameters for anatomic traits and volume shrinkage were estimated, as well as their correlations with wood basic density. No significant differences among progenies were observed for the traits studied. The additive genetic variation coefficient at individual and among progeny levels ranged from low (0.26%) to high (16.98%). The narrow sense heritability at individual and family means levels also ranged from low (0.01) to high (0.87). This indicates that some traits are under strong genetic control and can be improved by selection. In the present situation, in order to attain the highest genetic gains, the sequential selection among and within progeny would be recommended.
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