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Comportamento hidrodinâmico do solo e da recarga potencial do aquífero a partir de poços de infiltração de águas pluviais
(Universidade Federal de São Carlos, 2019-09-17) Justino, Eliane Aparecida Justino; Barbassa, Ademir Paceli; https://lattes.cnpq.br/2979012440240781; https://lattes.cnpq.br/6366855147494701
The objective of this work was to analyze the hydrodynamic behavior of soil e potential groundwater recharge trough stormwater infiltration wells, built in real and pilot scale at the Federal University of São Carlos using monitoring and modeling. Therefore, it will be performed physical and hydraulic analyzes of the soil, monitoring of volumetric soil moisture, hydrological data and water level inside the wells, and rainfall simulations with 2000 L and 10000 L reservoirs. The modeling were developed by the Soil Water Balance Method and numerically using Hydrus 1D version 4.16 and 2D/3D version 2.5 softwares. The soil of the study area was heterogeneous in relation to pore size and distribution, which caused the saturated hydraulic conductivity of the soil (Ksat) to vary from 1.58 10-4 to 9.52 x 10-3 cm / s, values that assure the adequacy of the area for the implantation of stormwater infiltration wells. Among the methods used to determine Ksat employed in well desing, those proposed by Cauduro and Dorfman (s / d) and Pratt and Powel (1992) were more adequate. Soil moisture monitoring showed that the wetting front reach does not depend on the well diameter, but yes of the water level height inside well and that the surfaces that effectively contribute to infiltration is below half of this height. The localized and large distribution of runoff promoted by the well made the wetting and drying cycle effect were striking in the first operations of the structure. The increase in the well diameter decreased the soil water infiltration rate, it is consequence of its increased reservoir capacity and decreased resistant energy of water flow in the soil. In the estimation of groundwater potential recharge by the Water Balance Method, when considering rainwater management using infiltration wells, the average recharge value found for 2017 and 2018 was 2,72 times higher than for the grassland scenario, therefore, the wells contribute effectively to groundwater recharge. Two-dimensional numerical modeling of groundwater dynamics was inconclusive by Hydrus 2D/3D and Hydrus 1D simulation showed that the average potential recharges for 2017 and 2018 were 86, 84, 82 and 80% of total precipitated in the period, when the water table level was 1, 2, 5 and 8 m from the bottom of PGHidro, respectively, and the inicial recharge time is directly influenced by table level and rainfall distribution. In conclusion, the results showed the importance of considering infiltration wells in urban management, not only for direct runoff control but also as a source of groundwater recharge.
Transformações pelo caminho: a última narrativa
(Universidade Federal de São Carlos, 2019-09-17) Santana, Danilo; Souto, Bernardino Geraldo Alves; https://lattes.cnpq.br/7264826508407685
Reflective Narrative about the experiences acquired by the student during the undergraduate medical course, from 2014 to 2019, divided into cycles, consisting of two years, as well is the Medical course at the Federal University of São Carlos, organized according to the progression in the domain of knowledge, in each area of competence, considering increasing degrees of autonomy.
Validação de kit imunocromatográfico rápido para diagnóstico da Hepatite C
(Universidade Federal de São Carlos, 2019-09-17) Lima, Jéssica Caldeira de; Thiemann, Otávio Henrique; https://lattes.cnpq.br/4933022274560322; https://lattes.cnpq.br/1179401876105619
Hepatitis C is an infectious disease caused by the Hepatitis C Virus (HCV) and usually asymptomatic in the acute phase. Globally, an estimated 71 million people are infected with HCV and approximately 400,000 deaths happen annually due to complications from the disease, such as cirrhosis and liver cancer. This study aimed to develop and validate a rapid immunochromatographic test for the detection of anti-HCV antibodies, the Imuno-Rápido HCV, by comparing the performance of this product with a second commercially available test (Commercial A) with the same methodology and ELISA methodology (Murex anti-HCV 4.0, DiaSorin) considered gold standard. Tests for validation include repeatability and reproducibility analysis, real-time and accelerated stability analysis, clinical sensitivity and specificity measurements, and positive and negative predictive values. In this study, 383 samples characterized by ELISA methodology were included and, by comparing the results, the clinical sensitivity and specificity parameters, positive and negative predictive values for the immunochromatographic tests Imuno-Rápido HCV and Commercial A were measured. For both immunochromatographic tests, a value of 100% were found for clinical sensitivity and negative predictive value. Clinical specificity values were 99.7% for Imuno-Rápido HCV and 100% for Commercial A test and positive predictive values for these kits were 98.6% and 100%, respectively. Repeatability and reproducibility analyzes showed concordant results in 100% of the tests, and real-time and accelerated stability assessments demonstrated the ability of the kit to maintain its proper functioning over time even under temperature stress, suggesting its ability to maintain stable for at least 18 months. These results corroborate the hypothesis that the Imuno-Rápido HCV has performance similar to commercially available kits that use the same methodology and is able to assist in the diagnosis of HCV infection safely and quickly, combined with easy execution and low cost.