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Search Results: 1 - 10 of 2338 matches for " Clovis;Correia "
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Use of the Wavelet Transform for Digital Terrain Model Edge Detection (Special Issue—Wavelet Analysis)  [PDF]
Clovis Gaboardi
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.610171
Abstract: The purpose of this work is to analyze the feasibility of using the wavelet transform in the edge detection of digital terrain models (DTM) obtained by Laser Scanner. The Haar wavelet transform and the edge detection method called Wavelet Transform Modulus Maxima (WTMM), both implemented in Matlab language, were used. In order to validate and verify the efficiency of WTMM, the edge detection of the same DTM was performed by the Roberts, Sobel-Feldman and Canny methods, chosen due to the wide use in the scientific community in the area of Image Processing and Remote Sensing. The comparison of the results showed superior performance of WTMM in terms of processing time.
Fatores ambientais e hospitaliza es em crian as menores de cinco anos com infec o respiratória aguda
Botelho Clovis,Correia Ademir Lopes,Silva Ageo Mário Candido da,Macedo Alex Gon?alves
Cadernos de Saúde Pública , 2003,
Abstract: Considerando a hospitaliza o como um indicador de gravidade da Infec o Respiratória Aguda (IRA), objetiva-se estudar a associa o de alguns fatores ambientais com a necessidade de tratamento hospitalar em crian as com diagnóstico de IRA. Foram analisados todos os prontuários de atendimento do Pronto Socorro Municipal de Cuiabá, das crian as menores de cinco anos, de ambos os sexos, agrupados por mês do atendimento. Obedecendo às características climáticas da regi o, dois períodos climáticos foram levados em conta: seco (maio a outubro) e chuvoso (novembro a abril). As variáveis: temperatura, umidade relativa do ar, o número de focos de calor (queimadas) foram cotejadas. A prevalência da IRA foi 49,8%; a necessidade de interna o alcan ou 7,6%, com percentual de interna es maior no período seco. Conclui-se que o período seco e a umidade relativa do ar est o associados com as hospitaliza es das crian as estudadas.
Fatores ambientais e hospitaliza??es em crian?as menores de cinco anos com infec??o respiratória aguda
Botelho, Clovis;Correia, Ademir Lopes;Silva, Ageo Mário Candido da;Macedo, Alex Gon?alves;Silva, Clystenes Odir Soares;
Cadernos de Saúde Pública , 2003, DOI: 10.1590/S0102-311X2003000600021
Abstract: considering hospitalization as an indicator of seriousness of acute respiratory infection (ari), this study focuses on the association between some environmental factors with the need for hospitalization of children with a diagnosis of ari. the study analyzed all the medical records (at the municipal emergency ward in cuiabá, mato grosso state) of children under five years of age (both sexes), collected by month of attendance. two weather seasons were considered: dry (may-october) and rainy (november-april). variables included: temperature, relative humidity, and number of fires (due to extensive slashing and burning for agriculture in the region). prevalence of ari was 49.8%, and hospitalization was required in 7.6% of cases, with a higher percentage during the dry season. the dry season and lower relative humidity were associated with increased pediatric hospitalization rate due to ari.
Pesquisa do antígeno polissacarídico do Schistosoma mansoni em soros de hamsters pela técnica de imunoeletroforese cruzada
Fernandes, Margareth;Irulegui, Ione;Lima, Dirce Mary Correia;Abrantes, Clarice Pires;Cressoni, Martha Smith;Christo, Carlos Henrique;Silva, Luiz Caetano da;Takiguti, Clovis;
Revista do Instituto de Medicina Tropical de S?o Paulo , 1988, DOI: 10.1590/S0036-46651988000200003
Abstract: crossed immunoelectrophoresis (iec) was used for detection of free and complexed circulating polisaccharide anodic antigen (agca) of schistosoma mansoni in sera of infected hamsters. an attempt was also done to detect agca in human sera from patients infected with s. mansoni. the conditions for isolation and detection of complexed agca were established. the sensitivity of iec was increased by incorporation of 2% polyethylene glicol (peg) to the agarose and by maintaining the system at 4°c during the electrophoretic run. free agca was detected in 12 and the complexed in 30 of the 37 hamsters sera analysed. correlation between agca (free and complexed) and the parasite load was observed. agca was not detected, under the experimental conditions used, in human sera from 7 patients in the acute and 23 in the chronic phase of infection.
Preliminary studies of primary production in the Ubatuba region (Lat. 23o30'S - Long. 45o06'W), Brazil
Teixeira, Clovis;
Boletim do Instituto Oceanográfico , 1973, DOI: 10.1590/S0373-55241973000100003
Abstract: some data and observations of primary production and hydrographic parameters have been made in the region of ubatuba (lat. 23o30's long. 45o06'w) during two seasons: summer and winter. the primary production varied from 1.01 mgc/m3 /h to 28.16 mgc/m3 /h in summertime and from 0.24 mgc/m3 /h to 16.24 mgc/m3 /h in wintertime. the phytoplankton production is believed to be controlled primarily by the quantity of nutrient salts and there is a possibility that relatively nutrient-rich deeper cold waters may increase the fertility of the region.
Topological mass generation and duality transformations in diverse dimensions
Wotzasek, Clovis;
Brazilian Journal of Physics , 2004, DOI: 10.1590/S0103-97332004000200007
Abstract: in this seminar we shall discuss the issue of duality transformation in the context of f topological mass generation in diverse dimensions. particular emphasis will be given to the mass generation mechanism as the result of interference between self and anti self-dual components, as disclosed by the soldering formalism. since this is a gauge embedding procedure derived from an old algorithm of second-class constraint conversion used by the author to approach anomalous gauge theories, a quick review of the subject will be presented. the problem of classification of the electromagnetic duality groups that is closely related will also be briefly discussed. particular emphasis will be given to a new approach to duality based on the soldering embedding to tackle to problem of mass generation by topological mechanisms in d=3 and d=4 dimensions including the couplings to dynamical matter and nonlinear cases.
Preliminary studies of primary production in the Ubatuba region (Lat. 23o30'S - Long. 45o06'W), Brazil
Teixeira, Clovis;
Brazilian Journal of Oceanography , 1973, DOI: 10.1590/S1679-87591973000100003
Abstract: some data and observations of primary production and hydrographic parameters have been made in the region of ubatuba (lat. 23o30's long. 45o06'w) during two seasons: summer and winter. the primary production varied from 1.01 mgc/m3 /h to 28.16 mgc/m3 /h in summertime and from 0.24 mgc/m3 /h to 16.24 mgc/m3 /h in wintertime. the phytoplankton production is believed to be controlled primarily by the quantity of nutrient salts and there is a possibility that relatively nutrient-rich deeper cold waters may increase the fertility of the region.
Introdu??o aos métodos para medir a produ??o primária do fitoplancton marinho
Teixeira, Clovis;
Brazilian Journal of Oceanography , 1973, DOI: 10.1590/S1679-87591973000100004
Abstract: in this review certain basic aspects of techniques established for primary productivity studies are presented. some emphasis has been given to a critical review of techniques mainly devoted to estuarine and coastal phytoplankton of tropical waters. the contents of this paper have been balanced along the lines of current research in marine primary production but only considering the basic methods needed to determine the primary production and standing-stock of phytoplankton. no attempt has been made to include some sophisticated methods, since the particular aim of the present manual is to become a useful guide for beginners in the field.
Situa??o do atendimento do paciente venéreo nas unidades sanitárias da Secretaria da Saúde do Estado de S?o Paulo, Brasil
Lombardi,Clovis;
Revista de Saúde Pública , 1978, DOI: 10.1590/S0034-89101978000100002
Abstract: the author describes the situation of venereal patients care in 340 health centers of the state of s. paulo (brazil) in 1975, through a questionnaire answered by those technically responsible (doctors) for the health centers. the questionnaire also included personal opinions, comments and suggestions. syphilis and gonorrhoeae are specifically studied in relation to incidence, laboratory diagnosis, therapeutic schemes, health education, as well as the relationship between the health center and other medical care agencies.
Situa??o da endemia da hanseníase no município de S?o Paulo, Brasil (1976-1977)
Lombardi,Clovis;
Revista de Saúde Pública , 1979, DOI: 10.1590/S0034-89101979000400004
Abstract: the situation of endemic hansen's disease in the county of s. paulo, brazil during 1976 and 1977 is described and analyzed and also characterized as a public health problem through the presentation and discussion of prevalence and incidence rates according to the location of the homes in the different districts and subdistricts of the city including the central, intermediary, and outlying zones of the citycounty. the specific medical resources available are described and evaluated according to the same criteria. an attempt was made to relate the distribution of the resources to the distribution of the endemic rates found.
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