Navegando por Orientadores "QUEIROZ, Joaquim Carlos Barbosa"

Agora exibindo 1 - 4 de 4

Acesso aberto (Open Access)
Análise da incidência de casos de dengue na área urbana de Belém – PA: uma aplicação de modelos espaciais e temporais
(Universidade Federal do Pará, 2013-08-30) SIQUEIRA, Ionara Santos; QUEIROZ, Joaquim Carlos Barbosa; http://lattes.cnpq.br/4383935463464893
In this work, we conducted a study of mapping of risk areas and predictions for the cases of dengue in the urban area of Belém. For predictions was related to the incidence of dengue, the precipitation using statistical models based on the methodology of Box and Jenkins time series. The period of the study ran from 05 years (2007-2011). Were used multivariate time series methods, using transfer function and spatial models, in which we analyzed the existence of spatial autocorrelation in the variable under study. The results of the analyses of the occurrence data of dengue cases and precipitation showed that the increase in the number of cases of dengue fever accompanies the increase in precipitation, showing the direct relationship between the number of cases of dengue and the precipitation in the years under study. The forecasting model built for the incidence of dengue cases presents a good fit with satisfactory results and, in this case, can be used in cases of dengue. In relation to the spatial analysis for the incidence of dengue, was a preview of the possible incidence of cases in the urban area of Belém, with the respective areas of risk, showing the significance of risk levels in percentage. For the period studied was observed the behavior and the variations of the dengue cases in the study area, with emphasis on four neighborhoods: Marco, Guamá, Pedreira and Tapanã, showing possible influences of these neighborhoods in the areas (neighborhoods) nearby. Therefore, the present study highlights the contribution to the planning of the dengue control actions, to serve as an instrument in support of decisions in the area of public health.
Acesso aberto (Open Access)
Avaliação da contaminação por mercúrio na foz do Rio Tapajós e exposição ambiental à população de Santarém-PA, Brasil
(Universidade Federal do Pará, 2016-10-06) SOUSA, Enilson da Silva; QUEIROZ, Joaquim Carlos Barbosa; http://lattes.cnpq.br/4383935463464893
In the last decades of the twentieth century, academic work focused on discussion of the mercury problem in the Brazilian Amazon pointed to a mercury contamination of anthropogenic origin, especially from artisanal gold mining prospecting activities. In the mid-1990s and early years of this century, with the advancement of research in the field of geochemistry focused on this discussion, point to a possible geogenic origin of this contamination, and environmental exposure of the local population would be related to protein intake of animal origin, from the fish and work activities. The aim of this study is to analyze the speciation of Hg and methylmercury in soil and particulate matter in the mouth of the Tapajós River, and perception, mobilization capacity and political action on contamination by this metal of the population of Santarém; Elaborate mercury maps from spatially distributed data using up geostatistics to infer results for the location and risk of contamination of the metal along the mouth of the Tapajós River, Santarém-Pa.; and maps of contamination probability that this metal, which enabled the classification and quantification of contaminated areas for different confidence levels in and around the mouth of the Tapajós River; and quantify and evaluate the total mercury concentrations in water and particulate matter and hypotheses about the origin of this contamination in the Tapajos bay. The methodological procedures included the making location maps, georeferencing of points of collection and identification of the search area; Application Integrated Questionnaires for Measuring Social Capital Index - SC-IQ, proposed by the World Bank; Maps of the quantify the mercury concentrations in the study area and prepare maps of the spatial distribution of concentrations; and maps of the spatial distribution of concentrations and use of geostatistics (factorial kriging), which enabled the development of maps at different scales of variability associated with anthropogenic or geogenic origin activities. Two campaigns one in July and December 2014, with 37 and 45 sampling points in each were conducted. The results point to a possible contamination of the area at some points, with indexes to the top of the type recommended by the resolution n. 357/2005, of CONAMA. The results of the factorial kriging point to the possibility that mercury concentrations are associated with the natural environment itself, although it may have contributions due to human activity such as mining and industrial activities in the basin.
Acesso aberto (Open Access)
Avaliação da influência da precipitação pluviométrica no mapeamento das características da paisagem do sítio arqueológico AP-MA-05/Amapá e sua importância social e histórica
(Universidade Federal do Pará, 2016-03-22) ALBUQUERQUE, Jéssica Lisboa de; QUEIROZ, Joaquim Carlos Barbosa; http://lattes.cnpq.br/4383935463464893
This study evaluated the influence of rainfall in mapping landscape features of the archaeological site AP-MA-05 and the contribution of its social importance and historical. To obtain the data was used geophysical method of electrical resistivity in an area of UNIFAP (Federal University of Amapá) of 10 x 20 meters. The rainfall data were collected in INMET station Macapá. Data analysis was performed with use of statistical and geostatistical methods. In rainy season, the soil resistivity presented a minimum of 198.7 ohm.m and maximum values of up to 3946 ohm.m, averaging 1188.87 ohm.m. In the less rainy season observed values were 394 ohm.m (minimum) and 5863 ohm.m (maximum), averaging 2078.31 ohm.m. This shows the influence of rainfall on the apparent resistivity, since the more intense were the rains that occurred at the time of obtaining data, minors were the values of electrical resistivity. A survey on the social perception of the UNIFAP students and interviews with teachers responsible for the site in question, it was found that the level of awareness of students varies according to the course of affinity degree in archeology.
Acesso aberto (Open Access)
Construção e mapeamento de índice de qualidade de águas subterrâneas em Porto Velho
(Universidade Federal do Pará, 2017) NASCIMENTO, Gerson Flôres; QUEIROZ, Joaquim Carlos Barbosa; http://lattes.cnpq.br/4383935463464893
This work was carried out an area about 100 km2 in the urban perimeter of the municipality of Porto Velho - RO, where samples of groundwater of 119 wells were collected; Whose main objective was the elaboration of a groundwater quality index (IQAS). For this study, 24 variables (Electrical Conductivity, ORP, TDS, Salinity, Bicarbonate, Air Temperature, Water Temperature, Turbidity, Sulphate, Chloride, Water Hardness, Resistivity, Static Level, Ca Ion, pH, Nitrate, OD, M Ion (??), Na Ion, Ammonia Ion, Fe ion, Fluor, Mn Ion and K Ion), which were obtained from secondary data of the Brazilian Geological Survey (CPRM). The information on the contents of the studied parameters were analyzed in electronic spreadsheets where they received critical and statistical validation. From the mathematical relationships, the IQAS values were calculated using the factorial analysis technique, where it was identified that the variables that most influenced in its formation were Salinity, Electrical Conductivity, TDS, Chloride, Water Hardness and Calcium. From the IQA calculated for each sample, the ordinary kriging technique was applied to produce the IQAS thematic map. With the results of this research it was possible to identify the demographic densification zones of the urban perimeter of Porto Velho with a higher or lower index of groundwater quality.