990 resultados para 434
Resumo:
A través del presente proyecto se pretende describir: a) la incidencia de personas discapacitadas y enfermas en familias tabacaleras que trabajan con agrotóxicos (determinando cantidad de discapacitados y enfermos entre familias tabacaleras, Su ubicación y distribución geográfica en el Municipio de San Vicente, Departamento Guaraní, Provincia de Misiones); b) las características de la vida cotidiana, sus posibilidades para cubrir las demandas de educación y atención de sus integrantes, particularmente, de aquellos categorizados como discapacitados o enfermos y, c) modos en que las familias tabacaleras interpretan la relación de los problemas de enfermedad y discapacidad con sus condiciones de vida y el trabajo agrícola con agrotóxicos. A través de la categoría calidad de vida de las familias tabacaleras, identificar y describir el potencial de estas unidades para articular con la sociedad local los distintos elementos de atención (educación, asesoramiento, medica-sanitaria, rehabilitación socio-psicofísica, cobertura de beneficios legales, económicos y sociales) que permitan a las personas enfermas y/o discapacitadas alcanzar el máximo de sus potencialidades y autovalimiento en relación con los ciclos vitales de la familia. Con la participación de profesionales de la medicina y del medio ambiente se indagará entre los productores sobre el posible impacto de los agrotóxicos en aquellos aspectos relacionados a la calidad del suelo de dicado a la producción de alimentos y de la agua para beber.
Resumo:
Detrital modes for 524 deep-marine sand and sandstone samples recovered on circum-Pacific, Caribbean, and Mediterranean legs of the Deep Sea Drilling Project and the Ocean Drilling Program form the basis for an actualistic model for arc-related provenance. This model refines the Dickinson and Suczek (1979) and Dickinson and others (1983) models and can be used to interpret the provenance/tectonic history of ancient arc-related sedimentary sequences. Four provenance groups are defined using QFL, QmKP, LmLvLs, and LvfLvmiLvl ternary plots of site means: (1) intraoceanic arc and remnant arc, (2) continental arc, (3) triple junction, and (4) strike-slip-continental arc. Intraoceanic- and remnant-arc sands are poor in quartz (mean QFL%Q < 5) and rich in lithics (QFL%L > 75); they are predominantly composed of plagioclase feldspar and volcanic lithic fragments. Continental-arc sand can be more quartzofeldspathic than the intraoceanic- and remnant-arc sand (mean QFL%Q values as much as 10, mean QFL%F values as much as 65, and mean QmKP%Qm as much as 20) and has more variable lithic populations, with minor metamorphic and sedimentary components. The triple-junction and strike-slip-continental groups compositionally overlap; both are more quartzofeldspathic than the other groups and show highly variable lithic proportions, but the strike-slip-continental group is more quartzose. Modal compositions of the triple junction group roughly correlate with the QFL transitional-arc field of Dickinson and others (1983), whereas the strike-slip-continental group approximately correlates with their dissected-arc field.
Resumo:
http://www.guttmacher.org/pubs/compilations/IUSSP/IUSSP-Chapter11.pdf
Resumo:
An integrated instrument package for measuring and understanding the surface radiation budget of sea ice is presented, along with results from its first deployment. The setup simultaneously measures broadband fluxes of upwelling and downwelling terrestrial and solar radiation (four components separately), spectral fluxes of incident and reflected solar radiation, and supporting data such as air temperature and humidity, surface temperature, and location (GPS), in addition to photographing the sky and observed surface during each measurement. The instruments are mounted on a small sled, allowing measurements of the radiation budget to be made at many locations in the study area to see the effect of small-scale surface processes on the large-scale radiation budget. Such observations have many applications, from calibration and validation of remote sensing products to improving our understanding of surface processes that affect atmosphere-snow-ice interactions and drive feedbacks, ultimately leading to the potential to improve climate modelling of ice-covered regions of the ocean. The photographs, spectral data, and other observations allow for improved analysis of the broadband data. An example of this is shown by using the observations made during a partly cloudy day, which show erratic variations due to passing clouds, and creating a careful estimate of what the radiation budget along the observed line would have been under uniform sky conditions, clear or overcast. Other data from the setup's first deployment, in June 2011 on fast ice near Point Barrow, Alaska, are also shown; these illustrate the rapid changes of the radiation budget during a cold period that led to refreezing and new snow well into the melt season.