Giovanni Sotero Garcia - Academia.edu (original) (raw)

Papers by Giovanni Sotero Garcia

A utilização de efluentes na irrigação como fontes de nutrientes pode reduzir, ou mesmo eliminar,... more A utilização de efluentes na irrigação como fontes de nutrientes pode reduzir, ou mesmo eliminar, a necessidade de fertilizantes comerciais. Pesquisas estão sendo desenvolvidas no sentido de avaliar o potencial de uso de diferentes qualidades de água como fontes de nutrientes para as plantas. Neste contexto, realizou-se um ensaio para avaliar o crescimento de mudas de Eucalyptus grandis W. Hill ex Maiden, Eucalyptus urophylla S.T. Blake e E. 'urograndis' após 80 dias de utilização de água de abastecimento, água de piscicultura e efluente de esgoto doméstico tratado. Foram analisadas características de crescimento e nutrição foliar em função da espécie e da qualidade da água de irrigação. As características de crescimento avaliadas foram altura da parte aérea, diâmetro do colo, área foliar, massa seca da raiz, massa seca total, massa seca da parte aérea, relação entre parte aérea e raiz, taxa de crescimento absoluto, taxa de crescimento relativo, razão de área foliar, taxa de...

Revista Mexicana de Ciencias Agrícolas, 2017

El objetivo de la presente investigación fue evaluar el impacto que tendrá el cambio climático... more El objetivo de la presente investigación fue evaluar el impacto que tendrá el cambio climático del presente siglo sobre la estación de crecimiento (EC) en el estado de Jalisco, México. Para ello se determinó la EC en 134 estaciones meteorológicas del estado con valores probabilísticos de lluvia y el valor promedio de la ETP estimada con el método Penman-Monteith a través del programa ETo Calculator. Estas determinaciones se utilizaron para modelar los parámetros de la EC para los períodos 2041-2060 (año promedio 2050) Rcp 4.5, 2061-2080 (año promedio 2070) Rcp 4.5, y 1961-2010 (climatología de referencia). Como insumo de las climatologías 2050 y 2070 se utilizaron los valores promedio mensuales de precipitación y temperatura media derivados de la implementación de un modelo que incluye el ensamble de 11 modelos de circulación global (MCG). Los resultados mostraron que en el estado de Jalisco existen diferencias inter-regionales para la fecha de inicio, fecha de fi...

Journal of Experimental Agriculture International, 2018

Scientia et technica, 2015

Se realiza una descripcion de algunos trabajos reportados en la comunidad de control a nivel inte... more Se realiza una descripcion de algunos trabajos reportados en la comunidad de control a nivel internacional y nacional sobre PENDULOS INVERTIDOS. Este trabajo abarca desde la creacion del pendulo de Furuta hasta la actualidad.

Rev Colomb Cir, Apr 1, 1989

Coffee Science, Mar 31, 2014

At present the need for water and nutrients in agriculture is increasing, and this can become a p... more At present the need for water and nutrients in agriculture is increasing, and this can become a problem because the high cost of fertilizers and low supply of water resources, requiring alternative sources of water and nutrients to maintain agricultural production. With the objective of evaluating the inputs nutrients and fertility soil after application of treated wastewater in an Oxisol cultivated with conilon coffee, an experiment under greenhouse conditions was carried out, from November 2010 until January 2011. The experiment was realized on a split-plot 13 x 4, with thirteen clones in plots and in the sub-plots three depths of domestic sewage, applied with a third, two-thirds and 100% of the crop water demand total, and a control level with water supply, in a completely randomized design with three replicates. Were evaluated the input nutrient soil by wastewater and its efficiency as nutritional source to coffee tree. There was an increased of the salinity soil, however, there was increased of magnesium, potassium, base saturation, sum of bases with application of treated wastewater, and thus, it's concluded that the treated wastewater can reduce spending on fertilizers in the initial cultivation of conilon coffee tree.

Imagen Diagnóstica, 2016

Resumen Presentamos el caso de una mujer de 41 anos con cuadro de un mes de evolucion de dolor en... more Resumen Presentamos el caso de una mujer de 41 anos con cuadro de un mes de evolucion de dolor en la pantorrilla derecha, asociado a claudicacion intermitente y disminucion del pulso tibial posterior y pedio. La ecografia Doppler mostraba disminucion de flujo en la tercera porcion poplitea derecha y el angio-TAC evidencio oclusion corta, de 2 cm de longitud, en la segunda porcion de la arteria poplitea derecha. La angio-RM confirma la presencia de un musculo accesorio que rodea el paquete vasculonervioso popliteo justificando la compresion de la arteria, por lo que se concluye el diagnostico de sindrome de atrapamiento de la arteria poplitea.

Revista Do Instituto De Medicina Tropical De Sao Paulo, Jun 1, 2003

CERVANTES(1), Carolina LEMA(2), Luisa HURTADO(2), Ronald ANDRADE(2), Gladys QUIROGA(2), Giovanni ... more CERVANTES(1), Carolina LEMA(2), Luisa HURTADO(2), Ronald ANDRADE(2), Gladys QUIROGA(2), Giovanni GARCIA(2), Lorena TORRICOS(2), Lourdes ZEGARRA(2), Veronica VERA(2), Wilge PANOSO(3), Rosario ARTEAGA(4), David SEGURONDO(4), Fernando ROMERO(4), Alfredo DULON(4), David ASTURIZAGA(4), Luis HURTADO GOMEZ(5) & Shunro SONODA 1,6 SUMMARY Cervical cancer constitutes a major health problem in developing countries like Bolivia. The roles of certain genotypes of human papillomaviruses (HPVs) in the pathogenesis of cervical cancer is well established. The prevalence of HPV infection among sexually active women varies greatly. Information regarding HPV infection in Bolivia is very much scarce, specially in regions like the Amazonian lowland. We studied 135 healthy women living in four rural localities of the Bolivian Amazon. Presence of HPV in DNA extracted from cervical swabs was analyzed using a reverse line hybridization assay. The estimated overall HPV infection prevalence among the studied rural localities was 5.9% (ranging from 0-16.6%). These values were unexpectedly low considering Bolivia has a high incidence of cervical cancer. The fact that Amazonian people seem to be less exposed to HPV, makes it likely that some other risk factors including host lifestyle behaviors and genetic background may be involved in the development of cervical cancer in this population.

Epsilon, 2010

Este articulo presenta un sistema de algoritmos de facil implementacion para el calculo de la pro... more Este articulo presenta un sistema de algoritmos de facil implementacion para el calculo de la profundidad critica de flujo en ductos circulares. Ademas, muestra la aplicacion de metodos numericos no tradicionales en la solucion de problemas hidraulicos que involucran flujo a superficie libre en canales.

Resumo-O objetivo deste trabalho foi verificar a alterações no pH, no teor de matéria orgânica e ... more Resumo-O objetivo deste trabalho foi verificar a alterações no pH, no teor de matéria orgânica e na CTC efetiva do solo, mediante a aplicação de diferentes doses de lodo de esgoto doméstico e a utilização de diferentes intervalos de irrigação. O experimento foi conduzido em casa de vegetação, no Núcleo de Estudos e de Difusão de Tecnologia em Floresta, Recursos Hídricos e Agricultura Sustentável da Universidade Federal do Espírito Santo. Foi montado em um esquema fatorial 5 x 3, sendo cinco doses de lodo de esgoto (D0, D1, D2, D3, D4) e três intervalos de irrigação (7, 14 e 21 dias), com três repetições, num delineamento inteiramente casualizado. Através das análises de solo, verificamos que a utilização do lodo de esgoto promove a elevação do pH, da CTC e da matéria orgânica no solo. Palavras-chave: resíduo, análise de solo, irrigação

Idesia (Arica), 2010

Vários fatores como a temperatura, acidez do solo, teor de nutrientes e cultivar, interferem na e... more Vários fatores como a temperatura, acidez do solo, teor de nutrientes e cultivar, interferem na eficiência simbiótica das estirpes de Rhizobium em condições de campo. Com objetivo de avaliar a capacidade de fixação biológica de nitrogênio de estirpes nativas de Rhizobium sp. foi realizado um experimento em vasos montado no delineamento inteiramente casualizado no esquema fatorial 10x7 (10 linhagens de feijoeiro consideradas tolerantes ao déficit hídrico, sendo estas: Amarelinho,

Ciência Rural, 2011

Dentro de um programa de controle de qualidade, a avaliação do vigor de sementes é fundamental e ... more Dentro de um programa de controle de qualidade, a avaliação do vigor de sementes é fundamental e necessária para o sucesso da produção. Este trabalho teve como objetivo avaliar a eficiência de diferentes testes de vigor na avaliação da qualidade fisiológica de sementes de triticale (X. triticosecale Wittmack), buscando a diferenciação de lotes. Cinco lotes da cultivar 'IPR 111' foram submetidos ao teste de germinação, primeira contagem, teste de frio, condutividade elétrica (50 sementes 50mL-1 de água; 25°C 24h-1), lixiviação de potássio (50 sementes 75mL-1 de água; 25°C 3h-1), envelhecimento acelerado (43°C 48h-1) e teor de água. O teste de condutividade elétrica e lixiviação de potássio são eficientes na diferenciação do vigor de lotes de sementes de triticale.

Journal of Statistical Mechanics: Theory and Experiment, 2014

An exponential deformation of 1D critical Hamiltonians gives rise to ground states whose entangle... more An exponential deformation of 1D critical Hamiltonians gives rise to ground states whose entanglement entropy satisfies a volume-law. This effect is exemplified in the XX and Heisenberg models. In the XX case we characterize the crossover between the critical and the maximally entangled ground state in terms of the entanglement entropy and the entanglement spectrum.

Idesia (Arica), 2007

O presente trabalho teve como objetivo realizar o estudo comparativo das equações empíricas para ... more O presente trabalho teve como objetivo realizar o estudo comparativo das equações empíricas para estimativa da evapotranspiração de referência em comparação ao método universal padrão Penman-Monteith FAO 56 para as condições climáticas dos municípios de Sooretama, Cachoeiro de Itapemirim, Venda Nova do Imigrante localizados, respectivamentes, nas regiões Norte, Sul e Serrana do Estado do Espírito Santo. Foram utilizadas as variáveis climáticas referentes ao período seco (junho, julho e agosto) do ano de 2006 obtidas via plataforma de dados do CPTEC-INPE provenientes das estações automatizadas agrometeorologicas códigos nº 31957, 31958 e 31959 instaladas, respectivamente, nos municípios mencionados. Para comparar os valores de ETo estimados por meio das equações empíricas com os do método universal padrão Penman-Monteith (FAO56) foram considerados os parâmetros da equação de regressão 0 e 1 , coeficiente de determinação (r²), coeficiente de correlação (r), estimativa do erro padrão (EEP), índice de concordância (d), índice de confiança ou desempenho (c), nas escalas diária, três, cinco e sete dias, para os meses estudados nas três localidades. Para as condições climáticas de onde se realizou o trabalho, em função dos índices e parâmetros estudados, para o período seco os melhores métodos pela ordem foram: Penman 48 Original, Priestley-Taylor (PT), FAO24 Penman Modificado, FAO24 Blaney-Criddle e Turc (61), FAO24 Radiação, Makkink (Mk).

Radiology, 2002

PURPOSE: To report an experience with helical computed tomographic (CT) angiography as the initia... more PURPOSE: To report an experience with helical computed tomographic (CT) angiography as the initial procedure to rule out arterial lesions caused by penetrating neck injuries. MATERIALS AND METHODS: During 27 months, 175 patients were referred for helical CT angiography of the neck because of clinical suspicion of arterial injuries. The protocol included a 100-mL bolus of nonionic contrast material injected at 4.5 mL/sec, with 11-second scanning delay, 3-mm collimation, and pitch of 1.3-2.0. CT images were interpreted prospectively by the emergency radiologist, and two radiologists retrospectively interpreted studies with consensus. Outcome was determined with examination of patients and their charts. The sensitivity, specificity, and positive and negative predictive values were calculated. RESULTS: Studies in two patients were considered inadequate for diagnosis; these patients were referred for conventional arteriography and had normal findings. In 27 patients (15.6%), arterial lesions were detected. One patient had two arterial injuries. Lesions demonstrated with helical CT angiography were arterial occlusion (n ϭ 14), pseudoaneurysm (n ϭ 8), pseudoaneurysm and arteriovenous fistulae (n ϭ 4), and partial thrombosis (n ϭ 2). The remaining 146 patients had normal arteries. On the basis of these findings, patients were treated with surgery (n ϭ 21), endovascular intervention (n ϭ 7), and observation alone (n ϭ 146). CONCLUSION: Results indicate that helical CT angiography can be used as the initial method for evaluation in patients with possible arterial injuries of the neck.

Radiology, 2001

To present our experience with helical computed tomographic (CT) arteriography as the initial dia... more To present our experience with helical computed tomographic (CT) arteriography as the initial diagnostic examination in patients suspected to have focal arterial injuries of the proximal extremities. During 19 months, 142 arterial segments in the proximal portions of the extremities of 139 patients with trauma were evaluated with helical CT arteriography. CT arteriograms were interpreted on site by the radiologist in charge of emergency procedures and retrospectively with consensus interpretation between two radiologists. CT study quality and the presence of arterial injuries were noted. CT arteriographic findings were compared with those of surgery, conventional arteriography, and/or clinical follow-up. Five (3.6%) patients had nondiagnostic studies and underwent conventional arteriography. In the remaining 137 arterial segments in 134 patients, helical CT arteriography demonstrated arterial injuries in 61 segments and normal arteries in 76 segments. These segments were treated initially with surgery (55 segments) or endovascular intervention (four segments) or were observed (78 segments); 77 of the 78 observed segments remained stable at 3-18 months (mean follow-up, 5.2 months). There were no differences between the on-site and consensus interpretations (kappa = 1.0). The sensitivity of CT arteriography was 95.1%, and the specificity was 98.7%. Helical CT arteriography can be performed as the initial diagnostic method in most patients suspected to have focal arterial injuries of the proximal portions of the extremities.

Lupus, 1998

Prolactin (PRL) has been involved in the pathogenesis of systemic lupus erythematosus (SLE) and h... more Prolactin (PRL) has been involved in the pathogenesis of systemic lupus erythematosus (SLE) and hyperprolactinemia has been connected with systemic activity. However, the clinical significance of PRL has not been investigated in lupus glomerulonephritis (GN). Methods: We studied SLE patients (ACR criteria) with biopsy-proven renal disease. Renal histology was classified according to World Health Organization (WHO) criteria. Renal function tests, albuminuria, complement levels (nephelometry), anti-DNA antibodies (C. luciliae) and serum and urine PRL concentrations (RIA) were determined at baseline and at 4-month intervals for one year. Renal activity was defined as mild, moderate or severe according to serum creatinine, creatinine clearance, albuminuria, red blood cells (RBC), and casts. Results: There were 26 patients with mean age 28.5 y and mean disease duration 47.9 months. Twenty patients had diffuse proliferative glomerulonephritis (GN), four had focal GN and two had membranous...

Journal of Vascular and Interventional Radiology, 2003

To report the midterm results of the endovascular treatment of complicated type-B aortic dissecti... more To report the midterm results of the endovascular treatment of complicated type-B aortic dissection with use of stent-grafts. MATERIALS AND METHODS: Ten patients with acute (n ‫؍‬ 4) or chronic (n ‫؍‬ 6) complicated type-B dissection were treated with custom-made stent-grafts. Indications for treatment included uncontrollable hypertension with dissection extension (n ‫؍‬ 3), renal ischemia (n ‫؍‬ 1), and false lumen aneurysm (n ‫؍‬ 6). Stainless-steel Z-stents covered with polyester grafts were placed in the initial six patients. Nitinol stents covered with ultrathin polytetrafluoroethylene were used in the remaining four patients. The patients were followed-up with helical computed tomography for a maximum of 30 months (mean, 20 mo). RESULTS: There was one technical failure related to the access site. Early complications included deep venous thrombosis (n ‫؍‬ 1) and embolic stroke (n ‫؍‬ 1). Complete thrombosis of the thoracic false lumen was achieved in six patients and partial thrombosis was achieved in three. Aneurysms developed at the ends of the stainless-steel stents in two patients, requiring additional stent-graft placement. Despite successful remodeling of the thoracic aorta, three of four patients with distal reentry into the abdominal aorta experienced progressive abdominal aortic aneurysm (AAA). AAA rupture developed in two patients; one rupture was fatal and the other was treated with emergency surgery. CONCLUSIONS: Endovascular treatment of complicated type-B aortic dissection is technically feasible and effective. Closely monitoring the treated aorta is essential to detect early aneurysm formation at the ends of rigid stents. Despite adequate sealing of the tears in the thoracic aorta, dissection with distal reentry phenomenon into the abdominal aorta may evolve into AAA with late rupture.

Cirugía ( …, 1986

Resumo: Presentamos los primeros tres casos de trasplante hepatico en humanos realizado en Colomb... more Resumo: Presentamos los primeros tres casos de trasplante hepatico en humanos realizado en Colombia: El primero de ellos se practico el 14 de agosto de 1979 y murio a los 81 dias en un cuadro septicemico secundario a una complicacion tecnica de la ...

CES Medicina, 2011

Revisión de reflexión RESUMEN l desarrollo de resistencia de Plasmodium falciparum a los antimalá... more Revisión de reflexión RESUMEN l desarrollo de resistencia de Plasmodium falciparum a los antimaláricos constituye un problema importante para el control de la malaria. Particularmente, el surgimiento y dispersión de cepas de P. falciparum resistentes a la cloroquina a partir de la segunda mitad del siglo XX representan un nuevo problema para su control. La literatura científica ha documentado factores relacionados con el hospedero humano, el vector, el parásito y el tratamiento que podrían explicar la selección, supervivencia y dispersión local o a distancia de estas cepas. En esta revisión se exploraron factores no biológicos que intentan explicar el surgimiento y dispersión de cepas P. falciparum resistentes a la cloroquina. El entendimiento de los factores que contribuyen al surgimiento de la resistencia a antimaláricos, es importante para el diseño de estrategias que busquen retardar la aparición de resistencia a nuevos antimaláricos. Factores no biológicos relacionados con el desarrollo de resistencia de Plasmodium falciparum a la cloroquina Non-biological factors related to the development of resistance to chloroquine in Plasmodium falciparum