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  1. Mortality and cancer incident among residents in an area with a geological occurrence of uranium: the municipality of Monte Alegre, PA, Brazil; Avaliacao da incidencia e mortalidade por cancer na populacao residente em regiao com anomalia geologica na ocorrencia de uranio: estudo de caso: Monte Alegre, PA

    Energy Technology Data Exchange (ETDEWEB)

    Melo, Leticia Rodrigues

    2009-04-15

    The municipality of Monte Alegre, located in the Amazonian State of Para, Brazil, presents scattered areas with increased levels of natural radiation due to uranium rocks. The objectives of this dissertation were: to evaluate the mortality trend among Monte Alegre residents, and to compare it with that observed in neighbor municipalities (Alenquer and Prainha) without natural radiation sources; and to determine the impact of cancer distribution either in Monte Alegre or control counties population, taking into account their estimates of cancer incidence and mortality. The dissertation was organized in two papers. The first one aimed to evaluate the mortality trend for all causes of death, cancer, and unknown causes of death occurred between 1981-2005. Analyzed data was provided by the Brazilian National Mortality Information System (SIM), being the general population of the State of Para used as reference. In the second paper, cancer mortality risks at selected sites were ascertained using standardized mortality ratios (SMR) and mortality odds ratios (MOR). Additionally, cancer mortality risk ratios of Monte Alegre and control counties were obtained towards the ratio between SMRs of selected cancer sites in both areas. Three different sources of data were used to retrieve all cancer cases in the studied area, and therefore, to estimate cancer incidence in the studied populations: the diagnosed cancer cases at the regional reference centers for oncological care settled in Santarem, Belem and Manaus; the cancer-related hospitalization authorization records obtained at the Brazilian National Health System (SUS) registries; and primary data of cancer reported by local residents at a population-based health survey conducted by our research team in 2007-2008. A declining trend for all causes of death mortality in Monte Alegre general population, as well as for the unknown causes of death, was observed along the studied time series for both gender. Cancer mortality trend

  2. Natural radionuclides concentration in agricultural products and water from the Monte Alegre region

    International Nuclear Information System (INIS)

    Gouvea, Vandir A.; Melo, Vicente P.; Binns, Donald A.C.; Santos, Pedro L. dos

    1997-01-01

    Measurements to determine the content of natural radionuclides were performed in agricultural products in the brazilian Central Amazon Basin Monte Alegre region, for the soil-plant transfer calculation. these measurements were concentrated in the Ingles de Souza agricultural settlement, were several uranium and thorium occurrences exist in geological formations called Monte Alegre and Faro. The values obtained in foodstuff cultivated in the anomalous region are 10 times higher than those ones observed in the Alenquer region, which is the chosen region due to its low level natural radioactivity and its proximity to the anomalous region. (author). 9 refs., 4 tabs

  3. Mortality and cancer incident among residents in an area with a geological occurrence of uranium: the municipality of Monte Alegre, PA, Brazil

    International Nuclear Information System (INIS)

    Melo, Leticia Rodrigues

    2009-04-01

    The municipality of Monte Alegre, located in the Amazonian State of Para, Brazil, presents scattered areas with increased levels of natural radiation due to uranium rocks. The objectives of this dissertation were: to evaluate the mortality trend among Monte Alegre residents, and to compare it with that observed in neighbor municipalities (Alenquer and Prainha) without natural radiation sources; and to determine the impact of cancer distribution either in Monte Alegre or control counties population, taking into account their estimates of cancer incidence and mortality. The dissertation was organized in two papers. The first one aimed to evaluate the mortality trend for all causes of death, cancer, and unknown causes of death occurred between 1981-2005. Analyzed data was provided by the Brazilian National Mortality Information System (SIM), being the general population of the State of Para used as reference. In the second paper, cancer mortality risks at selected sites were ascertained using standardized mortality ratios (SMR) and mortality odds ratios (MOR). Additionally, cancer mortality risk ratios of Monte Alegre and control counties were obtained towards the ratio between SMRs of selected cancer sites in both areas. Three different sources of data were used to retrieve all cancer cases in the studied area, and therefore, to estimate cancer incidence in the studied populations: the diagnosed cancer cases at the regional reference centers for oncological care settled in Santarem, Belem and Manaus; the cancer-related hospitalization authorization records obtained at the Brazilian National Health System (SUS) registries; and primary data of cancer reported by local residents at a population-based health survey conducted by our research team in 2007-2008. A declining trend for all causes of death mortality in Monte Alegre general population, as well as for the unknown causes of death, was observed along the studied time series for both gender. Cancer mortality trend

  4. Clay characterization of Monte Alegre-RN, Brazil

    International Nuclear Information System (INIS)

    Alencar, M.I.; Ferreira, O.F.; Ren, D.G.; Cunha, J.M.R.; Harima, E.

    2011-01-01

    This study aimed to characterize the clay from the municipality of Monte Alegre in Rio Grande do Norte. Clay (popularly known as tabatinga) is used in brick kilns for producing bricks and tiles. This study also verified the possibility of using this for industrial ceramics and ceramic tiles. The following techniques were used for characterization: chemical and mineralogical analysis which found the composition of this material the presence of quartz and kaolinite, plasticity index where the result was that the clay has plasticity null; solid residue content was 60, 19%, the determination of loss on ignition was 8.70% on checking the color of the burning got creamy clear. (author)

  5. Solar-Aligned Pictographs at the Paleoindian Site of Painel do Pilão along the Lower Amazon River at Monte Alegre, Brazil.

    Science.gov (United States)

    Davis, Christopher Sean

    2016-01-01

    The archaeological sites near Monte Alegre, along Brazil's lower Amazon River, provide new information on the little-known activities and symbolism of South American Paleoindians toward the end of the Ice Age. While paleoindian sites like Monte Verde in Chile, or Guitarrero Cave in Peru, are located near the pacific coast, Monte Alegre lies much further inland, 680 km upriver from the mouth of the Amazon River and the Atlantic Coast. With excavated wood charcoal radiocarbon dated as early as 13,200 calibrated years ago, the hill-as a source of sandstone and quartz lithics-supplied early pioneers with adequate tools needed for colonizing the interior of the continent. Once there, they painted rock art on the landscape, which bears a record of the sun's horizon positions throughout the year. At just 2° south of the equator, Monte Alegre shows no overt seasonal changes beyond fluctuating rainfall amounts, unlike at higher latitudes where temperature, amount of daylight, foliage, and forms of precipitation markedly change. Near the equator, solar and stellar horizon sightings most visibly track the passage of time and seasonal cycles. However, horizons are often hidden behind high forest canopy throughout much of the Amazon Rainforest; but in the Monte Alegre hill ridges looming above the river, paleoindians could hike above the canopy to peer at the horizon, more effectively synchronizing their activities to ecological cycles. This research suggests that Monte Alegre paleoindians delimited the azimuthal range of the sun in a solar year with notational pictographs aligned to horizon sightings at Painel do Pilão, and leaving a painted grid of tally marks that might have served as a rudimentary early calendar. The broad-reaching implication for early Americans is that through the strategic placement of rock art, these ancient artists fostered predictive archaeorecording from which resources could be optimally extracted, ceremonial activities could be consistently

  6. Evaluation of chromosome aberration frequency instable in individual groups residents at the municipality of Monte Alegre, Para, Brazil, exposed to radon; Avaliacao da frequencia de aberracoes cromossomicas instaveis em grupos de individuos residentes no municipio de Monte Alegre - PA expostos diferencialmente ao radonio

    Energy Technology Data Exchange (ETDEWEB)

    Yunes, Samira Nogarol

    2010-07-01

    The municipality of Monte Alegre is a region that presents natural radiation high due to the presence of the radionuclide uranium ({sup 238}U) in its soil, which through its decay gives rise to element Rn, a gas. The radioactivity of the rocks has become a problem for the population of Monte Alegre, from the moment when the radioactive material began to be used in the construction of houses and paving of streets. Among all bio markers related to environmental exposures and its biological effects, the chromosomal aberrations are considered good bio markers as predictors of the risk of cancer. Studies suggest that the frequency of chromosomal aberrations may be related to the genetic instability individual and/or exposure to ionizing radiation. Our work aimed to evaluate the frequency of chromosomal aberrations in individuals in the region of high natural radioactivity in Monte Alegre-PA. As well as to correlate the cytogenetic analysis made in this study with the results of analysis of frequency of polymorphisms of genes of DNA repair carried out in another study that resulted in other dissertation. In accordance with the distribution of the data obtained in characterizing environmental radiological and in the calculation of dose, were chosen residents of homes with more and less exposure to radiation. The samples of peripheral blood of 85 individuals of the resident population of the region of Monte Alegre - PA were collected and examine provided two slides for individual was performed to verify the quality of the sample. Through this evaluation we decide that 33% of the material collected, or is, samples of 28 individuals were in suitable conditions for analysis of the frequency of chromosomal aberrations. After the collections lymphocytes present in the sample were cultivated in accordance with the methodology proposed for obtaining of cells in metaphase. were analyzed 6,177 metaphases of 28 individuals among which were found dicentric chromosomes 4 and 19

  7. Evaluation of {sup 222}Rn concentration of the internal and external environments of residences at Monte Alegre municipality, Para, Brazil; Avaliacao da concentracao do {sup 222}Rn nos ambientes internos e externos de residencias do municipio de Monte Alegre, PA

    Energy Technology Data Exchange (ETDEWEB)

    Melo, Vicente de Paula

    1999-07-01

    The human being is constantly exposed to the natural radioactivity in the environment where he lives. This radioactivity comes mainly from materials present in the terrestrial crust that possess in their constitution chemical elements belonging to the radioactive families of uranium and thorium. The use of such materials for the construction of houses constitutes an important exposure form to the natural radiation, above all to the radioactive gas {sup 222}Rn, that it is exhaled from them. The Brazilian soil is composed, among other, of minerals that contain appreciable concentrations of these elements. The inhabitants of Monte Alegre town in Para, located at 2 deg 00' 24,9 'S ; 54 deg 04 ' 13,5 {sup W}, used in the construction of their houses stones obtained from an area 20 km distant of Monte Alegre, denominated Ingles de Souza, located at 01 deg 56' 4 0,1 S; 54 deg 12 149,7 W, where a small residential village, denominated National Agricultural Colony of Para (CANP), is located. The objective of this work was to evaluate the indoor concentration of {sup 222}Rn in the residences of Monte Alegre and CANP. Determinations of the {sup 238}U and {sup 226}Ra concentrations, measurements of the radon flux in samples of stones and soils of the two regions, as well as measurements to the gamma dose close of the soil and inside the residences, were also carried out. The average results of the radon concentration in the air of the investigated residences did not exceed the limits of 200 Bq. m{sup 3} (action level) and 600 Bq. m{sup 3} (intervention level) recommended by the International Commission on Radiological Protection (ICRP). The concentrations of natural radionuclides and the radon flux determined at the village showed values 17 times higher than those found at the urban area of Monte Alegre, while the average indoor gamma dose rate in the village residences was 0.86 mSv/a. (author)

  8. Evaluation of {sup 222}Rn concentration of the internal and external environments of residences at Monte Alegre municipality, Para, Brazil; Avaliacao da concentracao do {sup 222}Rn nos ambientes internos e externos de residencias do municipio de Monte Alegre, PA

    Energy Technology Data Exchange (ETDEWEB)

    Melo, Vicente de Paula

    1999-07-01

    The human being is constantly exposed to the natural radioactivity in the environment where he lives. This radioactivity comes mainly from materials present in the terrestrial crust that possess in their constitution chemical elements belonging to the radioactive families of uranium and thorium. The use of such materials for the construction of houses constitutes an important exposure form to the natural radiation, above all to the radioactive gas {sup 222}Rn, that it is exhaled from them. The Brazilian soil is composed, among other, of minerals that contain appreciable concentrations of these elements. The inhabitants of Monte Alegre town in Para, located at 2 deg 00' 24,9 'S ; 54 deg 04 ' 13,5 {sup W}, used in the construction of their houses stones obtained from an area 20 km distant of Monte Alegre, denominated Ingles de Souza, located at 01 deg 56' 4 0,1 S; 54 deg 12 149,7 W, where a small residential village, denominated National Agricultural Colony of Para (CANP), is located. The objective of this work was to evaluate the indoor concentration of {sup 222}Rn in the residences of Monte Alegre and CANP. Determinations of the {sup 238}U and {sup 226}Ra concentrations, measurements of the radon flux in samples of stones and soils of the two regions, as well as measurements to the gamma dose close of the soil and inside the residences, were also carried out. The average results of the radon concentration in the air of the investigated residences did not exceed the limits of 200 Bq. m{sup 3} (action level) and 600 Bq. m{sup 3} (intervention level) recommended by the International Commission on Radiological Protection (ICRP). The concentrations of natural radionuclides and the radon flux determined at the village showed values 17 times higher than those found at the urban area of Monte Alegre, while the average indoor gamma dose rate in the village residences was 0.86 mSv/a. (author)

  9. Evaluation of 222Rn concentration of the internal and external environments of residences at Monte Alegre municipality, Para, Brazil

    International Nuclear Information System (INIS)

    Melo, Vicente de Paula

    1999-01-01

    The human being is constantly exposed to the natural radioactivity in the environment where he lives. This radioactivity comes mainly from materials present in the terrestrial crust that possess in their constitution chemical elements belonging to the radioactive families of uranium and thorium. The use of such materials for the construction of houses constitutes an important exposure form to the natural radiation, above all to the radioactive gas 222 Rn, that it is exhaled from them. The Brazilian soil is composed, among other, of minerals that contain appreciable concentrations of these elements. The inhabitants of Monte Alegre town in Para, located at 2 deg 00' 24,9 'S ; 54 deg 04 ' 13,5 W , used in the construction of their houses stones obtained from an area 20 km distant of Monte Alegre, denominated Ingles de Souza, located at 01 deg 56' 4 0,1 S; 54 deg 12 149,7 W, where a small residential village, denominated National Agricultural Colony of Para (CANP), is located. The objective of this work was to evaluate the indoor concentration of 222 Rn in the residences of Monte Alegre and CANP. Determinations of the 238 U and 226 Ra concentrations, measurements of the radon flux in samples of stones and soils of the two regions, as well as measurements to the gamma dose close of the soil and inside the residences, were also carried out. The average results of the radon concentration in the air of the investigated residences did not exceed the limits of 200 Bq. m 3 (action level) and 600 Bq. m 3 (intervention level) recommended by the International Commission on Radiological Protection (ICRP). The concentrations of natural radionuclides and the radon flux determined at the village showed values 17 times higher than those found at the urban area of Monte Alegre, while the average indoor gamma dose rate in the village residences was 0.86 mSv/a. (author)

  10. Tectônica deformadora do Domo de Monte Alegre - Pará

    OpenAIRE

    Figueira, Isabella Françoso Rebutini

    2012-01-01

    Resumo: O Domo de Monte Alegre, que se destaca em meio ao relevo da planície do rio Amazonas, é uma elevação topográfica situada na margem esquerda do rio, aproximadamente a 10 km a noroeste da cidade homônima, no estado do Pará. Esta estrutura dômica é reconhecida em imagens orbitais e a partir de sua descoberta, muitas têm sido as hipóteses para a gênese do domo, entretanto somente em 1975 Montalvão & Oliveira atribuíram a origem dômica à intrusões toleíticas básicas, que moldaram a estrutu...

  11. Evaluation of chromosome aberration frequency instable in individual groups residents at the municipality of Monte Alegre, Para, Brazil, exposed to radon

    International Nuclear Information System (INIS)

    Yunes, Samira Nogarol

    2010-01-01

    The municipality of Monte Alegre is a region that presents natural radiation high due to the presence of the radionuclide uranium ( 238 U) in its soil, which through its decay gives rise to element Rn, a gas. The radioactivity of the rocks has become a problem for the population of Monte Alegre, from the moment when the radioactive material began to be used in the construction of houses and paving of streets. Among all bio markers related to environmental exposures and its biological effects, the chromosomal aberrations are considered good bio markers as predictors of the risk of cancer. Studies suggest that the frequency of chromosomal aberrations may be related to the genetic instability individual and/or exposure to ionizing radiation. Our work aimed to evaluate the frequency of chromosomal aberrations in individuals in the region of high natural radioactivity in Monte Alegre-PA. As well as to correlate the cytogenetic analysis made in this study with the results of analysis of frequency of polymorphisms of genes of DNA repair carried out in another study that resulted in other dissertation. In accordance with the distribution of the data obtained in characterizing environmental radiological and in the calculation of dose, were chosen residents of homes with more and less exposure to radiation. The samples of peripheral blood of 85 individuals of the resident population of the region of Monte Alegre - PA were collected and examine provided two slides for individual was performed to verify the quality of the sample. Through this evaluation we decide that 33% of the material collected, or is, samples of 28 individuals were in suitable conditions for analysis of the frequency of chromosomal aberrations. After the collections lymphocytes present in the sample were cultivated in accordance with the methodology proposed for obtaining of cells in metaphase. were analyzed 6,177 metaphases of 28 individuals among which were found dicentric chromosomes 4 and 19 fragments

  12. Driving forces of the diel distribution of phytoplankton functional groups in a shallow tropical lake (Lake Monte Alegre, Southeast Brazil

    Directory of Open Access Journals (Sweden)

    LM. Rangel

    Full Text Available Phytoplankton vertical and diel dynamics in a small shallow lake (Lake Monte Alegre, Ribeirão Preto, state of São Paulo were investigated in two climatological periods: July 2001 (cool-dry season and March 2002 (warm-rainy season. Monte Alegre is a eutrophic reservoir, with a warm polymictic discontinuous circulation pattern. The lake was thermally stratified in both periods, although dissolved oxygen varied less in the cool-dry period. Phytoplankton biomass was higher in the warm-rainy season and the vertical distribution was stratified in both seasons. Flagellate groups (Lm, Y, W1 and W2 and functional groups typical of shallow eutrophic environments (J, X1 and Sn were important throughout the study period. The lake's thermal pattern strongly influenced the vertical distribution of the phytoplankton community in both periods. Biomass, functional groups and size classes of phytoplankton also were determined by the presence of more efficient herbivores in the lake, especially during the cool-dry period when phytoplankton biomass decreased.

  13. Prevalência de discromatopsia nos quilombolas de Monte Alegre de Goiás (Kalungas)

    OpenAIRE

    Couto, Daniela Alessandri Monteiro

    2008-01-01

    Os Kalungas são descendentes de quilombolas, remanescentes dos quilombos, redutos de ex-escravos de origem africana. Vivem em semi-isolamento, há quase 300 anos, nas regiões rurais das cidades de Cavalcante, Teresina de Goiás e Monte Alegre de Goiás, no nordeste do Estado de Goiás. Vivem da agricultura de subsistência, da criação de pequenos rebanhos e de outras fontes de renda, como aposentadorias e auxílios do governo. Trata-se de comunidade negra que vive em meio rural. É nesta população, ...

  14. Porta-enxertos para o cultivar Máximo IAC 138-22 de uvas de vinho em Monte Alegre do Sul, SP

    OpenAIRE

    Terra, Maurilo Monteiro; Pires, Erasmo José Paioli; Coelho, Sônia Maria Bonilha Marcondes; Passos, Ilene Ribeiro da Silva; Santos, Rui Ribeiro dos; Pommer, Celso Valdevino; Silva, André Camargo Pereira da; Ribeiro, Ivan José Antunes

    1990-01-01

    Em Monte Alegre do Sul, SP, efetuou-se um experimento de longa duração para observar o comportamento do cultivar IAC 138-22 (Máximo) de uvas para vinho, sobre cinco porta-enxertos: RR 101-14, 'Golia', "Ripária do Traviú', IAC 572 e IAC 313. Em oito colheitas sucessivas anuais, de 1974 a 1981, analisaram-se as produções médias de uvas por planta. Os resultados indicaram que o IAC 572' foi o melhor porta-enxerto para o IAC 138-22 'Máximo'. O IAC 313 superou o IAC 572 em um dos anos estudados. T...

  15. Evaluation of the frequency of polymorphisms in XRCC1 (Arg399Gln) and XPD (Lys751Gln) genes related to the genome stability maintenance in individuals of the resident population from Monte Alegre, PA/Brazil municipality; Avaliacao da frequencia de polimorfismos nos genes XRCC1 (Arg399Gln) e XPD (Lys751Gln) relacionados a manutencao da estabilidade do genoma em individuos da populacao residente no municipio de Monte Alegre, PA

    Energy Technology Data Exchange (ETDEWEB)

    Duarte, Isabelle Magliano

    2010-07-01

    The human exposure to ionizing radiation coming from natural sources is an inherent feature of human life on Earth. Ionizing radiation is a known genotoxic agent, which can affect biological molecules, causing DNA damage and genomic instability. The cellular system of DNA repair plays an important role in maintaining genomic stability by repairing DNA damage caused by genotoxic agents. However, genes related to DNA repair may have their role committed when presenting a certain polymorphism. This study intended to analyze the frequency of single nucleotide polymorphisms (SNPs) in genes of DNA repair XRCC1 (Arg39-9Gln) and XPD (Lys751Gln) in a: population of the city of Monte Alegre, that resides in an area of high exposure to natural radioactivity. Samples of saliva were collected from individuals of the population of Monte Alegre, in which 40 samples were of male and 46 female. Through the use of RFLP (length polymorphism restriction fragment) the frequency of homozygous genotypes and / or heterozygous was determined for polymorphic genes. The XRCC1 gene had 65.4% of the presence of the allele 399Gln and XPD gene had 32.9% of the 751Gln allele. These values are similar to those found in previous studies for the XPD gene, whereas XRCC1 showed a frequency much higher than described in the literature. The. influence of these polymorphisms, which are involved in DNA repair and consequent genotoxicity induced by radiation depends on dose and exposure factors such as smoking, statistically a factor in public health surveillance in the region. This study gathered information and molecular epidemiology for risk assessment of cancer in the population of Monte Alegre. (author)

  16. Determination of the frequency of polymorphisms in genes related to the genome stability maintenance of the population residing at Monte Alegre, PA (Brazil) municipality; Determinacao da frequencia de polimorfismos em genes relacionados a manutencao da estabilidade do genoma na populacao residente no municipio de Monte Alegre, PA

    Energy Technology Data Exchange (ETDEWEB)

    Hozumi, Cristiny Gomes

    2010-07-01

    The human exposure to ionizing radiation coming from natural sources is an inherent feature of human life on earth, for man and all living things have always been exposed to these sources. Ionizing radiation is a known genotoxic agent which can affect the genomic stability and genes related to DNA repair may play a role when they have committed certain polymorphism. This study aimed to analyze the frequency of polymorphisms (SNPs) in genes of DNA repair and cell cycle control: hOGG1 (Ser326Cys), XRCC3 (Thr241 Met) and p53 (Arg72Pro) in saliva samples from a population located Monte Alegre, state of Para were collected in August 2008 and 40 samples of men and 46 samples of women, adding a total of 86 samples. By RFLP was determined the frequency of homozygous genotypes and / or heterozygous for polymorphic genes. The I)OGG1 gene was 5% of the allele 326Cys, XRCC3 gene found about 21 % of the allele 241 Met and p53 gene showed 40.8% of the 72Pro allele. And the genotype frequencies of individuals for the three genes were 91.04%, 88.06% and 59.7% for homozygous wild genotype, 5.97%, 11.94% and 22.39% for heterozygote genotype and 2,99%, zero and 17:91% for homozygous polymorphic hOGG1 genes respectively, XRCC3, p53. These values are similar to those found in previous studies. The influence of these polymorphisms, which are involved in DNA repair and consequent genotoxicity induced by radiation depends on dose and exposure factors such as smoking, which is statistically a factor in public health surveillance in the region. This study gathered information and molecular epidemiology in Monte Alegre, that help to characterization of local population. (author)

  17. Evaluation of the frequency of polymorphisms in XRCC1 (Arg399Gln) and XPD (Lys751Gln) genes related to the genome stability maintenance in individuals of the resident population from Monte Alegre, PA/Brazil municipality

    International Nuclear Information System (INIS)

    Duarte, Isabelle Magliano

    2010-01-01

    The human exposure to ionizing radiation coming from natural sources is an inherent feature of human life on Earth. Ionizing radiation is a known genotoxic agent, which can affect biological molecules, causing DNA damage and genomic instability. The cellular system of DNA repair plays an important role in maintaining genomic stability by repairing DNA damage caused by genotoxic agents. However, genes related to DNA repair may have their role committed when presenting a certain polymorphism. This study intended to analyze the frequency of single nucleotide polymorphisms (SNPs) in genes of DNA repair XRCC1 (Arg39-9Gln) and XPD (Lys751Gln) in a: population of the city of Monte Alegre, that resides in an area of high exposure to natural radioactivity. Samples of saliva were collected from individuals of the population of Monte Alegre, in which 40 samples were of male and 46 female. Through the use of RFLP (length polymorphism restriction fragment) the frequency of homozygous genotypes and / or heterozygous was determined for polymorphic genes. The XRCC1 gene had 65.4% of the presence of the allele 399Gln and XPD gene had 32.9% of the 751Gln allele. These values are similar to those found in previous studies for the XPD gene, whereas XRCC1 showed a frequency much higher than described in the literature. The. influence of these polymorphisms, which are involved in DNA repair and consequent genotoxicity induced by radiation depends on dose and exposure factors such as smoking, statistically a factor in public health surveillance in the region. This study gathered information and molecular epidemiology for risk assessment of cancer in the population of Monte Alegre. (author)

  18. Pé Diabético – Relato de Caso e Protocolo Assistencial do Serviço de Endocrinologia do Hospital de Clínicas de Porto Alegre

    Directory of Open Access Journals (Sweden)

    Gabriela Heiden Teló

    2011-01-01

    Full Text Available A infecção do pé é uma importante causa de morbidade em pacientes com diabetes melito, sendo responsável pela maioria dos casos de amputação não traumática de membros inferiores. A ulceração, secundária principalmente à neuropatia diabética, deformidade e trauma, é o principal fator de risco para infecção. Prevenção e identificação precoce dessas alterações, com tratamento apropriado, constituem ferramentas essenciais para diminuir a morbidade relacionada. Neste artigo, relatamos o caso de um paciente com diabetes melito tipo 2 e infecção de pé diabético, com predominância de componente neuropático, e descrevemos o protocolo assistencial recomendado pelo Serviço de Endocrinologia do Hospital de Clínicas de Porto Alegre (HCPA.

  19. Determination of the frequency of polymorphisms in genes related to the genome stability maintenance of the population residing at Monte Alegre, PA (Brazil) municipality

    International Nuclear Information System (INIS)

    Hozumi, Cristiny Gomes

    2010-01-01

    The human exposure to ionizing radiation coming from natural sources is an inherent feature of human life on earth, for man and all living things have always been exposed to these sources. Ionizing radiation is a known genotoxic agent which can affect the genomic stability and genes related to DNA repair may play a role when they have committed certain polymorphism. This study aimed to analyze the frequency of polymorphisms (SNPs) in genes of DNA repair and cell cycle control: hOGG1 (Ser326Cys), XRCC3 (Thr241 Met) and p53 (Arg72Pro) in saliva samples from a population located Monte Alegre, state of Para were collected in August 2008 and 40 samples of men and 46 samples of women, adding a total of 86 samples. By RFLP was determined the frequency of homozygous genotypes and / or heterozygous for polymorphic genes. The I)OGG1 gene was 5% of the allele 326Cys, XRCC3 gene found about 21 % of the allele 241 Met and p53 gene showed 40.8% of the 72Pro allele. And the genotype frequencies of individuals for the three genes were 91.04%, 88.06% and 59.7% for homozygous wild genotype, 5.97%, 11.94% and 22.39% for heterozygote genotype and 2,99%, zero and 17:91% for homozygous polymorphic hOGG1 genes respectively, XRCC3, p53. These values are similar to those found in previous studies. The influence of these polymorphisms, which are involved in DNA repair and consequent genotoxicity induced by radiation depends on dose and exposure factors such as smoking, which is statistically a factor in public health surveillance in the region. This study gathered information and molecular epidemiology in Monte Alegre, that help to characterization of local population. (author)

  20. Evaluation of heat focuss and Monte Alegre formula in Chapada dos Guimarães National park

    Directory of Open Access Journals (Sweden)

    Arlindo de Paula Machado Neto

    2017-12-01

    Full Text Available The present study aimed to analyze the behavior of the Monte Alegre Formula (MAF and to quantify the heat focus detected by reference satellites, comparing them with the fires that occurred in Chapada dos Guimarães National Park from 2007 to 2015. Heat analysis was performed using images from AQUA, TERRA and NOAA satellites, whose daily data of detected foci were used to compose the time series over the years, allowing the analysis of trends in the numbers of foci for the park. The data were acquired in the platform of the National Institute of Space Research, in the historical data base of the National Institute of Meteorology and by to the manager of the park. In most years there was an overestimation of the number of heat sources in relation to the number of fire occurrences. The TERRA satellite presented values were closer to the number of fire records in the park. It was observed that 87.69% of the fires were validated in relation to MAF, where 60% belonged to very high hazard class and 27.69% were classified in the high hazard class, demonstrating the effectiveness of MAF in relation to records of fires occurring in the park.

  1. Porta-enxertos para o cultivar Máximo IAC 138-22 de uvas de vinho em Monte Alegre do Sul, SP Rootstocks for wine grape cultivar IAC 138-22

    Directory of Open Access Journals (Sweden)

    Maurilo Monteiro Terra

    1990-01-01

    Full Text Available Em Monte Alegre do Sul, SP, efetuou-se um experimento de longa duração para observar o comportamento do cultivar IAC 138-22 (Máximo de uvas para vinho, sobre cinco porta-enxertos: RR 101-14, 'Golia', "Ripária do Traviú', IAC 572 e IAC 313. Em oito colheitas sucessivas anuais, de 1974 a 1981, analisaram-se as produções médias de uvas por planta. Os resultados indicaram que o IAC 572' foi o melhor porta-enxerto para o IAC 138-22 'Máximo'. O IAC 313 superou o IAC 572 em um dos anos estudados. Todos os outros porta-enxertos apresentaram desempenho inferior.A long term experiment was conducted at Monte Alegre do Sul, State of São Paulo, Brazil, to study the behaviour of wine grape cultivar IAC 138-22 Máximo on five rootstocks: RR 101 14, 'Golia', "Ripária do Traviú', IAC 313 and IAC 572 The yields of eight consecutive annual harvests (from 1974 to 1981 were analysed. The results indicated that IAC 572 was the best rootstock. IAC 313 can also be used but with fair results. "Ripária do Traviú', RR 101-14 and 'Golia' are not recommended as rootstocks for IAC 138-22. Considering the row spacing (2 x 1m which allows 5,000 plants/ha, the difference between average yields of the best and the worst rootstock was 8,475kg/ha of grapes, a considerable figure for the grape grower.

  2. Porta-enxertos para o cultivar Máximo IAC 138-22 de uvas de vinho em Monte Alegre do Sul, SP Rootstocks for wine grape cultivar IAC 138-22

    OpenAIRE

    Maurilo Monteiro Terra; Erasmo José Paioli Pires; Sônia Maria Bonilha Marcondes Coelho; Ilene Ribeiro da Silva Passos; Rui Ribeiro dos Santos; Celso Valdevino Pommer; André Camargo Pereira da Silva; Ivan José Antunes Ribeiro

    1990-01-01

    Em Monte Alegre do Sul, SP, efetuou-se um experimento de longa duração para observar o comportamento do cultivar IAC 138-22 (Máximo) de uvas para vinho, sobre cinco porta-enxertos: RR 101-14, 'Golia', "Ripária do Traviú', IAC 572 e IAC 313. Em oito colheitas sucessivas anuais, de 1974 a 1981, analisaram-se as produções médias de uvas por planta. Os resultados indicaram que o IAC 572' foi o melhor porta-enxerto para o IAC 138-22 'Máximo'. O IAC 313 superou o IAC 572 em um dos anos estudados. T...

  3. Presença dos princípios da mentalidade enxuta e como introduzi-los nas práticas de gestão das empresas de transporte coletivo de Porto Alegre Presence of Lean Thinking principles and how to introduce them in the management of urban transport firms in Porto Alegre

    OpenAIRE

    Miguel Afonso Sellitto; Miriam Borchardt; Giancarlo Medeiros Pereira

    2010-01-01

    Este artigo apresenta uma pesquisa que investigou a presença dos princípios da mentalidade enxuta na indústria do transporte coletivo de Porto Alegre. Os procedimentos foram: mensuração do grau de presença dos princípios da mentalidade enxuta na gestão das quinze empresas de transporte coletivo por ônibus de Porto Alegre; teste da confiabilidade das respostas e separação das empresas em aglomerados, segundo a intensidade da presença; e estudos de caso com os aglomerados extremos, a associação...

  4. Injury risk prediction for traffic accidents in Porto Alegre/RS, Brazil

    OpenAIRE

    Perone, Christian S.

    2015-01-01

    This study describes the experimental application of Machine Learning techniques to build prediction models that can assess the injury risk associated with traffic accidents. This work uses an freely available data set of traffic accident records that took place in the city of Porto Alegre/RS (Brazil) during the year of 2013. This study also provides an analysis of the most important attributes of a traffic accident that could produce an outcome of injury to the people involved in the accident.

  5. Instrumento de avaliação para melhorias em processos organizacionais: caso do transporte coletivo rodoviário urbano de Porto Alegre Assessment instrument for organizational process improvement: the case of urban passengers transportation in Porto Alegre

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    Miriam Borchardt

    2007-08-01

    Full Text Available Este artigo apresenta os dados obtidos a partir de estudos de casos em três empresas de transporte coletivo rodoviário urbano de Porto Alegre, estudos estes realizados no segundo semestre de 2004. O objetivo da pesquisa foi desenvolver um instrumento gerencial para a avaliação do potencial de melhoria dos processos destas organizações. Para desenvolver o instrumento de diagnóstico foi considerada a realidade do setor de transporte por ônibus nesta capital e a base teórica referente aos sistemas de gestão baseados na melhoria dos processos, tais como os critérios de excelência do prêmio ANTP de Qualidade, os princípios da Mentalidade Enxuta e do Lean Management. A definição do valor a ser oferecido pelo serviço de transporte, com base na percepção dos usuários, é um ponto que aparece como de grande potencial de melhoria, bem como o equilíbrio entre demanda e capacidade instalada.This paper presents data and information collected in the second semester of 2004, in a multiple case study developed in three city public bus transportation companies, operating in Porto Alegre. The goal of the research was to develop an instrument for assessing the potential for streamlining processes in companies. To do so, it was considered the business scenario of companies and industry, and the theoretical framework presented in Lean Thinking, ean Management, Award Excellence Criteria of industry. Issues related to perceived value present the major gaps between the degree of importance and degree of application attributed by these companies. Secondary gaps refer to balancing service capacity and demand.

  6. O Crisol: periódico das alunas do Colégio Americano (Porto Alegre/RS, 1945-1964 - O Crisol: the jornal by students of the Colégio Americano (Porto Alegre/RS, 1945-1964

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    Dóris Bittencourt Almeida, Brasil

    2013-04-01

    Full Text Available Neste trabalho investiga-se o periódico O Crisol, produzido pelas alunas do Colégio Americano, uma escola de Porto Alegre/RS, entre os anos de 1945 e 1964. Esse periódicodiz muito à História da Educação, pois evidencia saberes e práticas que circulavam nacomunidade do Colégio e revela um pouco das representações da cultura juvenil daquele tempo. Aqui interessam os significados dos discursos difundidos pelo periódico nos processos de subjetivação provocados pelos textos e suas possíveis influências na construção das identidades das jovens leitoras e escritoras do jornal. A pesquisa identifica-se com os pressupostos teóricos da História Cultural e se inscreve no campo das práticas de leitura e escrita e de memórias juvenis, tendo como referenciais as concepções da cultura escrita enquanto produção discursiva de um determinado tempo e lugar.Palavras-chave: memórias juvenis, escritas escolares, práticas de escrita. O CRISOL: THE JORNAL BY STUDENTS OF THE COLÉGIO AMERICANO (PORTO ALEGRE/RS, 1945-1964 AbstractThis work investigates the journalO Crisolproduced by students of the Colégio Americano, a school in Porto Alegre/RS, between the years 1945 and 1964.The journal says much to the History of Education, as evidenced knowledges and pratices circulating in the community,showing a bit of representations of youth culture in that time. Herethe interest by meaning’s dissemination of speeches by the journal in the processes of subjectivation caused by texts and their possible influences on the construction of identities of young readers and writers of the newspaper. The research identifies with the theoreticals presuppositions o Cultural History and inscribed in the field of reading and writing practices and memories of youth, taking as reference the concepts of the writing culture as a discursive production of a determinated time and place.Key-words: youth’s memories, written school, writing practices. O CRISOL: EL

  7. Presença dos princípios da mentalidade enxuta e como introduzi-los nas práticas de gestão das empresas de transporte coletivo de Porto Alegre Presence of Lean Thinking principles and how to introduce them in the management of urban transport firms in Porto Alegre

    Directory of Open Access Journals (Sweden)

    Miguel Afonso Sellitto

    2010-03-01

    Full Text Available Este artigo apresenta uma pesquisa que investigou a presença dos princípios da mentalidade enxuta na indústria do transporte coletivo de Porto Alegre. Os procedimentos foram: mensuração do grau de presença dos princípios da mentalidade enxuta na gestão das quinze empresas de transporte coletivo por ônibus de Porto Alegre; teste da confiabilidade das respostas e separação das empresas em aglomerados, segundo a intensidade da presença; e estudos de caso com os aglomerados extremos, a associação de classe e a operadora pública influente na indústria. Um achado dos casos é que a indústria tem capacidade de aprendizagem e aceitaria uma abordagem indutiva e prática, baseada em Benchmarking, com operações de fabricação de classe mundial, para modificação de seus modelos de gestão. Também emergiu que a indústria teria dificuldades com abordagens dedutivas formalizadas, que incluam atividades acadêmicas.This paper presents a research into the presence of Lean Thinking principles in the management of urban transport firms in Porto Alegre. The procedures were: measurement of presence of Lean Thinking principles in management of urban transportation firms in Porto Alegre; reliability checks and clustering of firms according to the degree of presence; and case studies with clusters, class association and a public operator who influences the industry. The research discovered that the industry has learning capacity and would welcome an inductive approach based on Benchmarking with world-class manufacturing operations, in order to enhance management. Also, the industry was less inclined to accept deductive approaches and academic activities in such a program.

  8. Prevalência de Cryptococcus neoformans nos pombos urbanos da cidade de Porto Alegre, Rio Grande do Sul Prevalence of Cryptococcus neoformans in urban pigeons of Porto Alegre (RS, Brazil

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    Aline Reolon

    2004-10-01

    Full Text Available Cryptococcus neoformans, levedura encapsulada, é o agente etiológico da criptococose em humanos e animais. A variedade neoformans, encontrada em fontes ambientais, incluindo fezes de pombos, é importante causa de mortalidade em indivíduos imunodeprimidos em todo o mundo. Contudo, ainda não há estudos sobre sua ecologia na cidade de Porto Alegre, onde se tem registro da ocorrência de casos humanos dessa micose. Para pesquisar fontes saprofíticas de C. neoformans na cidade de Porto Alegre, foram coletadas 88 amostras de excretas de pombos em distintas praças da cidade. Suspensões das amostras em salina estéril foram semeadas em placas com meio ágar Sabouraud e incubadas em estufa a temperaturas entre 29 e 30,5°C. Após cinco dias, colônias mucóides foram subcultivadas para identificação através de provas morfofisiológicas. O fungo C. neoformans foi isolado em 88 (100% das amostras avaliadas, confirmando sua ocorrência nos pombos que habitam as praças da cidade.Cryptococcus neoformans is an encapsulated yeast, causing cryptococcosis in human beings and animals. The variety neoformans, found in environmental sources, including pigeon excrements, is an important cause of mortality in immunocompromised individuals in the whole world. However, there are still no studies on its ecology in the city of Porto Alegre, where register of the occurrence of human cases of this mycosis is found. To study the saprophitic sources of C. neoformans in the city of Porto Alegre, 88 samples of avian excreta have been collected in distinct squares. Suspension of the samples in sterile saline solution had been planted in plates with Sabouraud agar and incubated in stove at 29-30.5°C. After five days mucoid colonies were subcultived for identification through morphologic and physiologic tests. C. neoformans was isolated in 88 (100% of the samples, proving its occurrence in the pigeons that inhabit the squares of that city.

  9. Homicídio seguido de suicídio na cidade de Porto Alegre

    OpenAIRE

    Sá, Samantha Dubugras; Werlang, Blanca Susana Guevara

    2007-01-01

    O objetivo deste trabalho foi caracterizar o perfil dos indivíduos que cometeram homicídio, seguido de suicídio em Porto Alegre num período de oito anos. As informações sobre esse evento foram localizadas em matérias jornalísticas, inquéritos policiais e entrevistas com informantes. Nos 14 casos localizados, o evento parece ser um fenômeno de gênero, já que os homens são os assassinos/suicidas, e mulheres e crianças, as vitimas. O método mais utilizado para o homicídio e o suicídio foi a arma...

  10. Presença dos princípios da mentalidade enxuta e como introduzi-los nas práticas de gestão das empresas de transporte coletivo de Porto Alegre

    OpenAIRE

    Sellitto,Miguel Afonso; Borchardt,Miriam; Pereira,Giancarlo Medeiros

    2010-01-01

    Este artigo apresenta uma pesquisa que investigou a presença dos princípios da mentalidade enxuta na indústria do transporte coletivo de Porto Alegre. Os procedimentos foram: mensuração do grau de presença dos princípios da mentalidade enxuta na gestão das quinze empresas de transporte coletivo por ônibus de Porto Alegre; teste da confiabilidade das respostas e separação das empresas em aglomerados, segundo a intensidade da presença; e estudos de caso com os aglomerados extremos, a associação...

  11. La recepción crítica de la novelística de Ciro Alegría: una aproximación

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    Carlos García-Bedoya Maguiña

    2011-05-01

    Full Text Available La obra de todo escritor de relieve requiere ser estudiada desde la perspectivade su recepción y, por cierto, es Ciro Alegría una figura fundamentalde nuestro canon literario. Sin duda merece ser considerado unclásico peruano, y es pertinente calificar a sus tres novelas iniciales yesenciales como textos canónicos de la literatura peruana, por tanto“clásicos” en el sentido más elemental de la palabra. El atributo de clásicoresulta especialmente apropiado para el caso de El mundo es ancho yajeno. En este artículo nos proponemos hacer un análisis de la recepciónde la crítica académica y de la forma en que esta ha consolidado a lanovelística de Alegría como una obra capital en nuestra literatura.

  12. CERCAMENTO DO PARQUE FARROUPILHA - PORTO ALEGRE/RS – REDENÇÃO OU PRISÃO?

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    Roberto Verdum

    2015-08-01

    Full Text Available O fenômeno paisagístico é um processo cultural que se estabelece a partir da interação entre sujeitos e espaço percebido. A paisagem é um fenômeno vivo, contínuo, que expressa diferentes tempos, materialidades e arranjos sociais. É a metonímia de um território. Tendo isso em vista, um grupo de pesquisa interdisciplinar buscou experimentar diferentes ferramentas teórico-metodológicas ao realizar o exercício de intervir em uma determinada paisagem urbana, e assim, estimular o debate sobre as controvérsias que lhe são inerentes. A problemática escolhida foi a proposta de cercamento do Parque da Redenção, oficialmente denominado Parque Farroupilha, discutida na Câmara de Vereadores de Porto Alegre (RS e na mídia local desde a década de 1990. Em uma área próxima ao lago Guaíba e ao Centro Histórico da cidade, os 40 hectares de área verde com diversos ambientes são um importante marco da paisagem de Porto Alegre. Caso fossem cercados, quais os aspectos da paisagem e outros que se agregam a ela que estariam sendo alterados? Como realizar uma intervenção para sensibilizar a população sobre as implicações do cercamento, ou não, do parque? Desde essas questões realizou-se o exercício, em 08 de novembro de 2014, cujos registros orientaram o debate e a produção deste texto e de um vídeo. Neste texto, procuramos inicialmente realizar um diagnóstico a paisagem estudada e a tensão evocada pela proposta de alterá-la mediante a instalação de uma cerca. A seguir relatamos uma intervenção realizada no local pelo grupo, como ferramenta metodológica para estimular diferentes reações e assim registrar as sensações e opiniões da população frente à alteração provocada naquela paisagem. Posteriormente, apresentamos reflexões sobre diferentes aspectos e implicações que o fechamento do parque poderá acarretar.

  13. Avaliação do potencial de melhoria dos processos de empresas de transporte rodoviário urbano: estudo de caso em três empresas de Porto Alegre – RS

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    Miriam Borchardt

    2009-10-01

    Full Text Available

    Este artigo apresenta os dados obtidos a partir de estudos de casos em três empresas de transporte coletivo rodoviário urbano de Porto Alegre. O objetivo é identificar o potencial de melhoria dos processos destas organizações. Para tanto, foi desenvolvido um instrumento de diagnóstico que considera a realidade do setor de transporte por ônibus nesta cidade e sistemas de gestão baseados na melhoria dos processos, tais como: critérios de excelência do Prêmio ANTP de Qualidade, os princípios da Mentalidade Enxuta e do Lean Management. O conhecimento do cliente e de suas expectativas é um fator considerado relevante pelas três organizações estudadas. A integração da cadeia de valor do sistema de transporte é um dos parâmetros avaliados que apresenta o maior potencial de melhoria.

  14. O jornal A Voz da Escola: escritas dos alunos do Colégio Elementar Souza Lobo (Porto Alegre/RS - 1934/1940 - The journal A Voz da Escola: written by children of the Elementary School Souza Lobo (Porto Alegre/RS - 1934/1940

    Directory of Open Access Journals (Sweden)

    Maria Helena Camara Bastos

    2013-04-01

    Full Text Available O artigo aborda as escritas de alunos do ensino primário do Colégio Elementar Souza Lobo (Porto Alegre/RS, publicadas no jornal A Voz da Escola (1934-1940, como prática de formação pessoal, cívica e religiosa, de aprendizagem da moral ou da civilidade. Busca-se analisar os discursos veiculados, os processos de subjetivação e suas influências nos modos como as crianças, na faixa etária de 10 a 12 anos, pensavam, agiam e se expressavam nos espaços de construção de suas identidades. Insere-se nas práticas de escritas escolares e infantis, especialmente na interface da História da Educação e da história da cultura escrita, que analisa a produção, difusão, conservação e o uso dos objetos escritos, em suas várias modalidades. Os exemplares do periódico são tomados como lócus privilegiado para adentrarmos no cotidiano de uma escola primária, da década de 1930, isto é, o universo escolar e toda uma rede paralela de significações.Palavras-chaves: escrita infantil, jornal escolar, periódico estudantil, cultura escolar. THE JOURNAL A VOZ DA ESCOLA: WRITTEN BY CHILDREN OF THE ELEMENTARY SCHOOL SOUZA LOBO (PORTO ALEGRE/RS - 1934/1940 Abstract The article discusses the writings of primary school pupils of the Elementary School Souza Lobo (Porto Alegre/RS, published in the newspaper A Voz da Escola (1934-1940, as a practice of civic, religious and personal formation, learning of moral or civic education. It aims to analyze conveyed discourses, subjective processes and their influence in way children, aged 10-12, thought, acted and expressed themselves in spaces of construction of their identities. It is inset in the practice of school and children’s writings, especially in the interface of the history of education and the history of written culture, which analyze the production, distribution, conservation and the usage of written objects in their several forms. Copies of the journal are taken as a privileged place in order

  15. GINCANA SOBRE O MOSQUITO Aedes aegypti COM ALUNOS DO ENSINO FUNDAMENTAL DE UMA ESCOLA PÚBLICA DO MUNICÍPIO DE ALEGRE-ES

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    Paola Cerbino Doblas

    2017-02-01

    Full Text Available Os vírus da Dengue, Zica e Chikungunya tem alarmado o Governo e a população tendo em vista o elevado número de casos no Brasil e seus consequentes prejuízos à saúde pública. Dessa forma a escola tem um papel fundamental em instruir seus alunos sobre os riscos, métodos de transmissão e prevenção quanto ao vetor dessas doenças: o mosquito Aedes aegypti. Com o objetivo de prevenir a proliferação do mosquito na cidade de Alegre, ES, os alunos participantes do Programa Institucional de Bolsa de Iniciação à Docência (PIBID de biologia, da Universidade Federal do Espírito Santo (UFES no campus de Alegre, aplicaram uma gincana para alunos do ensino fundamental de uma escola da rede pública do município de Alegre. O resultado da gincana foi benéfico visto que os alunos se demonstraram bastante participativos e mostraram obter conhecimento sobre o assunto. Por meio da análise dos resultados é possível perceber que os diferentes métodos de ensino podem ser muito eficientes para o processo de ensino-aprendizagem.

  16. O uso estratégico de recursos e capacidades no setor hoteleiro: o caso Ritz Porto Alegre

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    Paulo Hayashi Jr.

    2014-01-01

    Full Text Available This paper tries to elucidate how the Ritz Hotel in Porto Alegre (Brazil compete successfully with its resources and capabilities within the range of the chosen strategy. The research is qualitative, descriptive with semi‑structured interviews and non‑participant observation. All the employees and the owner were interviewed. Among the main conclusions reached were the importance of human capital and organizational culture as competitive and operational resources. In addition, the network of contacts formed by former residents, the internet as well as government agencies contribute in the renovation of hotel guests.

  17. Matrizes progressivas coloridas de Raven - escala especial: normas para Porto Alegre, RS The Raven's coloured progressive matrices: norms for Porto Alegre, RS

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    Denise Ruschel Bandeira

    2004-12-01

    Full Text Available O Teste das Matrizes Progressivas Coloridas de Raven destina-se à avaliação do desenvolvimento intelectual de crianças de 5 a 11 anos de idade. O presente trabalho teve como objetivo estabelecer normas para as crianças de Porto Alegre - RS. A amostra foi composta por 779 crianças matriculadas em escolas estaduais, de 4 anos e 9 meses a 11 anos e 9 meses. Foi constatado aumento progressivo nas médias de pontos com o aumento da idade e não foram encontradas diferenças entre meninos e meninas. Na comparação com as crianças de escolas públicas de São Paulo, as médias das crianças de Porto Alegre foram mais altas, mas em geral foram inferiores às das escolas particulares de São Paulo. Foram estabelecidas as normas em percentis para cada faixa etária. Os resultados reforçam a necessidade do estabelecimento de normas distintas para as diferentes regiões do Brasil, principalmente em relação aos testes de inteligência.The Raven's Coloured Progressive Matrices was proposed standards to Porto Alegre (RS children. The sample was composed by 779 children from Porto Alegre state public schools, aged from 4 years and 9 months to 11 years and 9 months. It was found a progressive increase in average scores as age increased and it was not verified differences between boys and girls. Comparing average scores between children from São Paulo and Porto Alegre public schools we found that the average scores from Porto Alegre children was higher, but they were lower than the scores from São Paulo private schools children. Percentile ranks were obtained to each age level with range of six months. Research results show the need to establish specific norms to different Brazilian regions, mainly concerning intelligence tests.

  18. Fatores de sucesso na implementação de sistemas integrados de gestão empresarial (ERP): estudo de caso em uma média empresa

    OpenAIRE

    Ramos, Anatália Saraiva Martins; Oliveira, Marcelo Augusto de

    2002-01-01

    RAMOS, A. S. M.; OLIVEIRA, M. A. Fatores de sucesso na implementação de sistemas integrados de gestão empresarial (ERP): estudo de caso em uma média empresa. In: ENCONTRO NACIONAL DE ENGENHARIA DE PRODUÇÂO, 22., 2002, Curitiba-PR. Anais... Porto Alegre-RS: ABEPRO, 2002. v. 1. ABSTRACT This paper analyses the Enterprise Resource Planning systems (ERP) implementation process in a medium size company at Natal, RN. It was an exploratory and descriptive study, conducted by the unique case st...

  19. BLOG CORPORATIVO COMO FERRAMENTA DE MARKETING DE RELACIONAMENTO: ESTUDO DE CASO NA REGIÃO METROPOLITANA DE PORTO ALEGRE E NO VALE DO SINOS

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    Sandra Portella Montardo

    2016-11-01

    Full Text Available Este artigo consiste no levantamento das ações de relacionamento digital em empresas da região do Vale do Rio dos Sinos e região metropolitana de Porto Alegre. O objetivo é analisar a utilização de blogs por empresas destas regiões como ferramenta de promoção da imagem institucional e de relacionamento com seu público-alvo. Este tema é relevante porque trará à discussão o uso dos blogs como estratégia de relacionamento digital pelas empresas da Região do Vale do Rio dos Sinos e da região metropolitana de Porto Alegre. Via Marte, Firezze e Gang foram as empresas selecionadas para esta análise. Palavras-chave: Relacionamento digital. Blogs coorporativos. Interatividade.

  20. Melhoramento do cafeeiro: XIV - Competição de variedades comerciais em Monte Alegre do Sul Coffee breeding: XIV - Comparative trial of commercial varieties of coffee in Monte Alegre do Sul

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    H. Antunes Filho

    1960-01-01

    Full Text Available Em fins de 1949 foi plantado na Estação Experimental de Monte Alegre do Sul um ensaio de variedades comerciais de café, cujos resultados, abrangendo seis anos de produção, são analisados e discutidos neste trabalho. A Estação Experimental de Monte Alegre do Sul situa-se em solo do tipo massapê-salmourão e apresenta a topogrofía acidentado que caracteriza extensa região cafeeira dos Estados de São Paulo e de Minas Gerais. A finalidade do ensaio é a de verificar o comportamento de diversas variedades, em comparação ao café Nacional, que ainda hoje é a variedade predominante nas fazendas que conservaram parte dos seus antigos cafèzais. As seguintes variedades acham-se representadas no experimento: Nacional, Amarelo de Botucatu, Bourbon Vermelho, Bourbon Amarelo, Mundo Novo, Caturra Vermelho, Caturra Amarelo, Laurina, Moragogipe A. D. e Semperflorens. Com exclusão do café Nacional, representado pela descendência de plantas típicos encontrados na própria Estação Experimental, as demais voriedades são formadas pela mistura de progênies de cafeeiros selecionados pela Seção de Genética do Instituto Agronômico, em Campinas. Como delineamento experimental adotou-se o de blocos incompletos com seis repetições. Ao fim de seis anos de colheitas a análise estatística revelou que a variedade Mundo Novo produziu significativamente mais do que as nove restantes. Em segundo plano classificou-se o Bourbon Amarelo, cuja produção, porém, não difere de modo significativo das que se verificaram para o Bourbon Vermelho, Caturra Amarelo e Caturra Vermelho. As quatro variedades com as maiores produções totais, em kg de frutos maduros (Mundo Novo, Bourbon Amarelo, Bourbon Vermelho e Caturra Amarelo, produziram significativamente mais do que as variedades antigas, como o Nacional e Amarelo de Botucatu, e mais tambem do que os variedades de menor interêsse comercial, como Maragagipe A. D., Laurina e Semperflorens. Os resultados s

  1. ambiental em Porto Alegre

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    Juliane Zeve

    2008-01-01

    Full Text Available This article is about urban environmental governance in the city of Porto Alegre, in accordance with the virtual representation of the relationship network among the actors involved in local environmental politics. The paper reveals the importance of improved processes of interactive co-operation through new information and communication technologies in order to achieve effective strategies for local sustainable development.

  2. Medo e violência no contexto urbano: o caso de José

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    Maria Cristina G. Giacomazzi

    2000-06-01

    Full Text Available O presente artigo trata a questão do medo na cidade a partir da apresentação de um caso de estudo, um dos moradores da Vila Jardim, bairro da zona norte da cidade de Porto Alegre/RS. Este morador foi enviado ao presídio por duas vezes, sendo que, na segunda vez, por um crime que não cometeu, logo após uma denúncia que havia feito junto aos "Direitos Humanos". Trata-se de um jovem afro-descendente, na época com 26 anos de idade, trabalhador empregado na construção civil, cuja formação escolar era o primeiro grau incompleto. O artigo procura refletir sobre medo e violência urbana, associados ao sistema judicial, às categorias de justiça, injustiça, destino, hamartia.The present article brings up the issue of fear in the cities through the analysis of a showcase situation ¾ one of the inhabitants of Vila Jardim, a neighborhood in the north of the city of Porto Alegre/RS. This inhabitant was sent to prison twice, on the second time for a crime he had not committed, right after he had denounced to a Human Rights office. It concerns to a young afro-descendent man, being 26 years old at the time, a worker employed by a construction firm, scholarship consisting of uncompleted elementary school. This article makes a reflection on fear and urban violence associated to the Law System and the issues of justice, injustice, fate, hamartia.

  3. Fe y Alegría in Peru: Solidarity and Service in Catholic Education

    Science.gov (United States)

    Klaiber, Jeffrey

    2013-01-01

    Fe y Alegría (Faith and Joy) refers to the network of schools for the poor run by the Jesuits in Latin America and the Caribbean. Founded originally in 1955 in Venezuela by Father José María Vélaz, by 2010 Fe y Alegría had spread to 17 countries in Latin America and now operates one in Chad. The Fe y Alegría schools are essentially convenant…

  4. Capital social y participación,una perspectiva desde el Cono Sur de América: Porto Alegre, Montevideo y Santiago de Chile

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    Patricio Valdivieso

    2012-06-01

    Full Text Available En este estudio presento evidencias sobre la participación ciudadana y el Capital Social (CS en tres casos sudamericanos - Porto Alegre, Montevideo y Santiago de Chile-, con el propósito de revitalizar el debate sobre la opinión pública, cultura política y CS. El estudio parte de los siguientes supuestos: el CS es el resultado de decisiones racionales de las personas, y los diseños políticos, las instituciones y la cultura política tienen efectos en esas decisiones. Con ayuda de un modelo de utilidad, datos de encuestas e información complementaria, analizo información sobre asociativismo y confianza, y otras variables socio-económicas, demográficas y políticas relacionadas. Las conclusiones son: a mediados de la década del 2000, Montevideo, Porto Alegre y Santiago de Chile disponían de un stock de CS equivalente al de sociedades desarrolladas; en esas ciudades, y por extensión en los países, los factores político-institucionales y de cultura política tuvieron efectos en la confianza y la disposición de las personas a participar, operando de forma variada, en relación con distintos contextos y situaciones de participación. En el análisis más desagregado del caso de Chile en el nivel municipal, se observan las mismas relaciones.This study presents evidence on citizen participation and social capital (SC in three South American cases - Porto Alegre, Montevideo and Santiago of Chile, in order to revitalize the debate on public opinion, political culture and SC. The study has the following assumptions: the SC is the output of rational decisions of individuals and political designs and institutions and political culture have an impact on those decisions. Using a utility model, survey data and information, I analyze information on associative life and trust, and other socio-economic, demographic and political information. The conclusions: in the mid-2000s, Montevideo, Porto Alegre and Santiago de Chile had a stock of SC

  5. Estimated atmospheric emissions from biodiesel and characterization of pollutants in the metropolitan area of Porto Alegre-RS

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    Elba C. Teixeira

    2012-09-01

    Full Text Available The purpose of the present study was to estimate emissions of some pollutants (CO, NOX, HC, SOX, and PM in diesel fleet due to the addition of biodiesel in different blends, as well as to assess atmospheric pollutant concentrations in the metropolitan area of Porto Alegre (MAPA. The methodology was based on inventories from mobile sources based on US EPA's technical report. Regarding air quality the following parameters were determined: PM10, PM2.5, CO, NOX, O3, SO2, HC and PAHs. The results showed a decrease for emissions PM, CO, and HC, and a slight increase for NOX. The characterization of atmospheric pollutants in the metropolitan area of Porto Alegre showed that they are influenced by mobile sources, particularly diesel vehicles. The diagnosis of ratios analysis that was applied to facilitate the identification of sources of PAHs, indicated an influence of diesel oil.O objetivo do presente estudo foi estimar as emissões de alguns poluentes (CO, NOX, HC, SOX e MP na frota diesel devido à adição de biodiesel em diferentes misturas, bem como avaliar as concentrações de poluentes atmosféricos na região metropolitana de Porto Alegre (MAPA. A metodologia foi fundamentada em inventários de fontes móveis baseados em relatórios técnicos da US EPA. Em relação à qualidade do ar foram determinado os seguintes parâmetros: PM10, MP2,5, CO, NOX, O3, SO2, HC e HPAs. Os resultados mostraram uma diminuição das emissões de PM, CO e HC e um ligeiro aumento de NOX. A caracterização dos poluentes atmosféricos na região metropolitana de Porto Alegre mostrou que eles são influenciados por fontes móveis, principalmente, por veículos a diesel. A análise de diagnóstico das razões, que foi aplicada para facilitar a identificação das fontes de HPAs, indicou influência de óleo diesel.

  6. Narrativas de “memorização” na escola normal de Porto Alegre/RS (1882

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    José Edimar Souza

    2018-01-01

    Full Text Available O objetivo foi reconstruir algumas práticas pedagógicas que compreendiam o cotidiano da Escola Normal de Porto Alegre/RS, no final do século XIX. Os documentos analisados constituem-se de vinte e duas “sabatinas” sobre memória que se encontram no acervo documental do Arquivo Histórico do Rio Grande do Sul. A reconstrução do objeto investigado, pelas lentes da história cultural, pressupõe a analise das representações registradas no momento avaliativo dessa forma de testar o conhecimento. Os aportes teóricos sustentam-se em Chartier (2002, evidenciando os usos práticos e as representações que essa didática pressupunha. As memórias “arquivadas” foram organizadas, de maneira a tornar possível compreender, através das representações narrativas de alunos da escola normal em 1882, as práticas instituídas no que se refere a cadeira de Pedagogia. Os resultados preliminares indicam que a sabatina consistia em uma forma didática da qual os professores se valiam para avaliar e instruir.

  7. A metamorfose do orçamento participativo: mudança de governo e seus efeitos em Porto Alegre

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    Lúcio Rennó

    2012-02-01

    Full Text Available As diferentes experiências participativas surgidas no Brasil na década de 1990 colaboraram para que o país tornasse-se, como diz Tatagiba, em "um celeiro de experiências inovadoras de gestão". Um dos destaques dentre as várias experiências de governança é o Orçamento Participativo (OP: programa que ao longo dos anos tem sido palco de intensos debates e estudos e colecionado admiradores e críticos. Entretanto, apesar de sua fama e dos diversos estudos, poucos buscaram avaliar o desempenho e a sensibilidade do programa ao governo eleito no município. Este artigo investiga o programa de orçamento participativo do município de Porto Alegre entre 1989 e 2008, analisando especificamente a sensibilidade do programa às mudanças de governo entre as gestões do Partido dos Trabalhadores (PT de 2001-2004 e do Partido do Movimento Democrático Brasileiro (PMDB de 2005-2008. Ou seja, investigamos se a mudança de partido no controle da prefeitura, mantendo o OP em funcionamento, afetou, no entanto, seu desempenho. Nossa análise indica que o funcionamento do programa é bastante afetado pelo partido político que o implementa e que, portanto, o programa peca por baixa institucionalização, mesmo em seu caso de maior sucesso: o município de Porto Alegre.

  8. Modelling the photochemical pollution over the metropolitan area of Porto Alegre, Brazil

    Science.gov (United States)

    Borrego, C.; Monteiro, A.; Ferreira, J.; Moraes, M. R.; Carvalho, A.; Ribeiro, I.; Miranda, A. I.; Moreira, D. M.

    2010-01-01

    The main purpose of this study is to evaluate the photochemical pollution over the Metropolitan Area of Porto Alegre (MAPA), Brazil, where high concentrations of ozone have been registered during the past years. Due to the restricted spatial coverage of the monitoring air quality network, a numerical modelling technique was selected and applied to this assessment exercise. Two different chemistry-transport models - CAMx and CALGRID - were applied for a summer period, driven by the MM5 meteorological model. The meteorological model performance was evaluated comparing its results to available monitoring data measured at the Porto Alegre airport. Validation results point out a good model performance. It was not possible to evaluate the chemistry models performance due to the lack of adequate monitoring data. Nevertheless, the model intercomparison between CAMx and CALGRID shows a similar behaviour in what concerns the simulation of nitrogen dioxide, but some discrepancies concerning ozone. Regarding the fulfilment of the Brazilian air quality targets, the simulated ozone concentrations surpass the legislated value in specific periods, mainly outside the urban area of Porto Alegre. The ozone formation is influenced by the emission of pollutants that act as precursors (like the nitrogen oxides emitted at Porto Alegre urban area and coming from a large refinery complex) and by the meteorological conditions.

  9. Cidades inteligentes como nova prática para o gerenciamento dos serviços e infraestruturas urbanos: a experiência da cidade de Porto Alegre

    OpenAIRE

    Weiss, Marcos Cesar; Bernardes, Roberto Carlos; Consoni, Flavia Luciane

    2015-01-01

    ResumoEste artigo tem por objetivo discutir a experiência da cidade de Porto Alegre relativamente à materialização do conceito de cidade inteligente. Para tanto, utilizou-se uma abordagem metodológica de caráter qualitativo e exploratório, baseada em estudo de caso, com coleta de dados em fontes primárias e secundárias realizada em 2013. Os resultados mostram que a implementação de inovações em tecnologias da informação e comunicação (TICs) na prestação dos serviços públicos proporcionou maio...

  10. Hotel business in Porto Alegre

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    Carla Schlieper Castilho

    2007-11-01

    Full Text Available This article intends to discuss the beginnings and evolution of hotel business in Porto Alegre City, relating the upsurge of these facilities with its historic context and locating them in time and space. This study identifies, classifies and discusses several types of lodging facilities settled between 1732 and 1940 and describes the particular characteristics of each one. This article also discusses the importance of selected hotels that became markers of the social and political history of the city.

  11. A representação de cidade e de planejamento urbano em Porto Alegre : estado, mercado e sociedade civil em disputa pela representação legítima

    OpenAIRE

    Milton Cruz

    2012-01-01

    Este é um estudo de caso de uma das grandes cidades brasileiras, Porto Alegre, cujas gestões municipais “apostaram”, desde o início do século XX, nas concepções e nos instrumentos de planejamento urbano para construir e organizar a ocupação e o uso do solo da cidade. Apesar disso, problemas urbanos típicos das cidades brasileiras, como a irregularidade fundiária, o déficit habitacional, a fragmentação social e a segregação urbana, cresceram e persistem até hoje. A investigação procura element...

  12. Prevalência de sintomas depressivos em uma amostra de prostitutas de Porto Alegre Prevalencia de síntomas depresivos en una muestra de prostitutas de Porto Alegre Prevalence of depressive symptoms in a sample of prostitutes in Porto Alegre

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    Lucas Schreiner

    2004-04-01

    Full Text Available INTRODUÇÃO: a prevalência de transtornos depressivos na população feminina de Porto Alegre é estimada em 14,5%. Não existem relatos sobre a prevalência de sintomas ou transtornos depressivos entre as prostitutas, população de risco para transtornos mentais. OBJETIVOS: quantificar a prevalência de sintomas depressivos em amostra de prostitutas de Porto Alegre e fatores associados. MATERIAL E MÉTODOS: uma amostra consecutiva e não aleatória de 97 mulheres entre 18 e 60 anos, cadastradas na Organização Não Governamental Núcleo de Estudos da Prostituição (NEP, de Porto Alegre, foi estudada. Após consentimento informado, as entrevistadas foram investigadas através do Inventário para depressão de Beck (BDI. O ponto de corte igual ou maior que 13 foi utilizado para detecção de sintomas depressivos. RESULTADOS: na amostra estudada, a idade média foi de 29,6 anos (dp 8,5 anos; 67% apresentaram sintomas depressivos (ponto de corte³ 13 com escore médio no BDI de 19,1 (dp 10,9; 24,7% da amostra apresentava sintomas leves; 40,2% sintomas moderados e 7,2% sintomas graves. Houve associação estatisticamente significativa entre a presença de sintomas depressivos e uso de álcool, história de doenças sexualmente transmissíveis e ausência de prática religiosa (pINTRODUCCIÓN: la prevalencia de trastornos depresivos en la población femenina de Porto Alegre es estimada en 14,5 %. No existen relatos sobre la prevalencia de síntomas o trastornos depresivos entre las prostitutas, población de riesgo para trastornos mentales. OBJETIVOS: cuantificar la prevalencia de síntomas depresivos en muestra de prostitutas de Porto Alegre y factores asociados. MATERIAL Y MÉTODOS: fue estudiada una muestra consecutiva y no aleatoria de 97 mujeres entre 18 y 60 años, cadastradas en la Organización No Governamental Nucleo de Estudios de la Prostitución (NEP, de Porto Alegre. Después de informado el consentimiento, las entrevistadas fueron

  13. Desvendando o fenômeno bullying nas escolas públicas de Porto Alegre, RS, Brazil

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    Patrícia Krieger Grossi

    2009-01-01

    Full Text Available Bullying es una palabra inglesa que fue adoptada en diversos países para referirse a intimidación. Peleas, ofensas, comentarios maldosos, agresiones físicas y sicológicas, represión son tipos de violencia generalmente asociados a infancia. Estudios indican que juegos de mal gusto pueden generar consecuencias serias como baja auto-estima, nuevas fuentes de violencia e, incluso, casos de suicidio. Este estudio viene siendo desarrollado desde julio de 2007 en cuatro colegios públicos de la ciudad de Porto Alegre - RS, totalizando 192 alumnos participantes. A través de cuestionario y grupos focales se observó que mas de 70% de los alumnos perciben la existencia de perjurios en el ambiente escolar y casi 40% consideran regular/ malo/ pésimo las relaciones en la colegio, reflejando el mal-estar del estudiante en relación a la colegio. Esta dinámica viene llevando cada vez más jóvenes al aislamiento y a la exclusión

  14. Porto Alegre as a Counter-Hegemonic "Global City": Building Globalization from below in Governance and Education

    Science.gov (United States)

    Gandin, Luis Armando

    2011-01-01

    This paper analyzes the case of Porto Alegre, Brazil as a counter-hegemonic global city. Porto Alegre is a city with no particular relevance to neoliberal globalization that, nevertheless, was launched to a global scale by transformations in local governance. New mechanisms of deliberative democracy captured the attention of social actors…

  15. SOIL VARIABILITY IN DIFFERENT LANDSCAPE POSITIONS IN THE PORTO ALEGRE BOTANICAL GARDEN, SOUTHERN BRAZIL

    OpenAIRE

    Silva,Luís Fernando da; Nascimento,Paulo César do; Inda,Alberto Vasconcellos; Silva,Edsleine Ribeiro

    2015-01-01

    ABSTRACTKnowledge of soil characteristics in areas where activities related to the environment are developed, such as Porto Alegre Botanical Garden (JB-PoA), is a fundamental condition for the sustainable use of this natural resource. The objective of this study was to characterize, classify and evaluate some issues about soil formation in Porto Alegre Botanical Garden, as well as relate their distribution on the landscape according to environmental characteristics. For the morphological desc...

  16. Gênero e pobreza multidimensional no município de Porto Alegre, Rio Grande do Sul Multidimensionality in gender and poverty in Porto Alegre, Rio Grande do Sul

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    Izete Pengo Bagolin

    2012-08-01

    Full Text Available Este trabalho buscou identificar e dar visibilidade às múltiplas dimensões da pobreza, incluindo aí seus aspectos espaciais e as particularidades das desigualdades de gênero em Porto Alegre. Ele está baseado em resultados de pesquisa, na qual foram entrevistadas 16386 pessoas vivendo em situação de pobreza nas diferentes regiões da cidade. A pesquisa buscou uma mudança de foco na análise sobre pobreza ao enfatizar o peso das dimensões que as pessoas consideram relevante para uma vida "digna de ser vivida". Os resultados evidenciaram a importância de dimensões como habitação, saúde e educação para viabilizar às pessoas uma vida "digna de ser vivida". Igualmente, mostraram as diferenças nas privações entre homens e mulheres, a heterogeneidade entre as regiões de Porto Alegre e, em especial, as formas como homens e mulheres vivenciam e manifestam suas percepções acerca da pobreza e das privações.This paper aims to discuss the importance of multidimensionality in understanding poverty in Porto Alegre, as well as to identify the spatial and gender disparities among its regions. The paper was based on a dataset from a survey conducted in 2007, in a two-stage methodology in which 16386 people living in poverty were interviewed. The results enabled the researchers to highlight the importance of dimensions such as habitation, health and education to allow people to "live a "dignified life". It also shows the differences in deprivations between men and women, the heterogeneity among the Porto Alegre regions and, in particular, the way in which men and women shape their perceptions of poverty and deprivation.

  17. AVALIAÇÃO DO POTENCIAL DE PRODUÇÃO DE SEDIMENTOS PARA A PCH PIEDADE – MONTE ALEGRE DE MINAS / MG

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    Lísia Moreira Cruz

    2013-10-01

    Full Text Available A construção de reservatórios modifica a dinâmica natural de um rio interferindo no transporte de partículas sólidas, pois forma-se um meio artificial de retenção de sedimentos, provocando dentre outras consequências o assoreamento. A manutenção desses reservatórios para um uso mais eficaz e conservacionista é de fundamental importância. O presente trabalho buscou realizar um estudo no intuito de definir as potenciais áreas-fonte ao assoreamento do Lago da PCH Piedade, localizada no município de Monte Alegre de Minas – MG, por meio do mapeamento da suscetibilidade à erosão laminar e da densidade de drenagem. Assim, os dados de pedologia, declividade, uso e ocupação do solo e densidade de drenagem, foram levantados, analisados e sintetizados por meio de mapas. Os produtos cartográficos proporcionam um melhor entendimento das possíveis áreas produtoras de sedimentos que poderão gerar o assoreamento e desse modo fornecem subsídios para a prevenção e redução do carreamento de partículas para o lago. O mapeamento foi realizado em uma adaptação da proposta de Salomão (1994, in: GUERRA et al., 1999 para verificação da potencialidade à erosão laminar, e Guimarães (2008 que, além da erosão laminar faz análises morfométricas da área de estudo. Para elaboração dos mapas foi utilizado o software ArcGIS 9.2. O mapeamento apontou a existência de condições favoráveis ao controle do assoreamento em função dos aspectos naturais (como a baixa declividade na maior parte da área e a predominância de solos de erodibilidade moderada, porém quanto ao uso e ocupação do solo é necessária uma atenção mais efetiva, pois a maior parte da área de estudo é ocupada por pastagens e culturas.

  18. Marcas do positivismo no governo municipal de Porto Alegre

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    Margaret Marchiori Bakos

    1998-08-01

    Full Text Available NESTE ARTIGO são examinadas as tendências teóricas dos políticos do Partido Republicano Rio-grandense, que têm por base o positivismo de Augusto Comte. Entre os princípios mais importantes, por eles observados, estava o do continuísmo político. Isto pode elucidar o fato de que, ao longo dos 40 anos de hegemonia política do PRR - de 1897 a 1937 -, Porto Alegre, capital do estado, teve apenas três intendentes.IN THIS ARTICLE is examined the theoretical set developed by the politicians of the Republican Party of Rio Grande do Sul, which were based on August Comte's positivism. Among the more important principles, observed by them, was the political trend. This can elucidate the fact that during the 40 years of the political hegemony of the PRR - from 1897 to 1937 -, Porto Alegre, the capital of the state, had only three quartmasters.

  19. A complexidade comunicacional nos espaços de relação do Shopping Center Iguatemi de Porto Alegre: um estudo de caso

    OpenAIRE

    Soster, Ana Regina de Moraes

    2007-01-01

    O surgimento e, expansão do urbano vincula-se a um conjunto de relações socioeconômicas e culturais em diferentes espaços ao longo do tempo. Nesse contexto os fluxos populacionais, econômicos e tecnológicos, entre outros, organizaram e (re)organizaram estes espaços fazendo surgir novos processos e formas. Dessa maneira, os Shopping Centers de modo geral e o Shopping Center Iguatemi de Porto Alegre, em particular, representa a (re)organização espacial, polarização capaz de ir além da condição ...

  20. City and School: the Visible Construction of the Fernando Gomes Elementary School in Porto Alegre/RS - Brazil (1913-1935

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    Tatiane De Freitas Ermel

    2016-07-01

    Full Text Available In the context of studies about space and school architecture, this article analyses the visual construction of the Fernando Gomes Elementary School, which was located in downtown Porto Alegre/RS, Brazil between 1913 and 1935. Designed by the engineer Afonso Hébert, head of the Department of Public Works in the State of Rio Grande do Sul/RS, the building was completed in 1922. In addition to functional elements, i.e., a large number of classrooms that would serve to increase the access of children to primary school, its monumental proportions incorporated a series of symbolic elements aligned with the ideals of the First Brazilian Republic (1889–1930. The documentary analysis was performed on the archives of the Directorship of Public Education and the Directorship of Public Works of Rio Grande do Sul, as well as various iconographic sources, capital improvement plans and periodicals of the time. The construction of the school inaugurated a new conception of the space and architecture of public elementary schools in the State, as the visible improvement and sanitation of the cities were considered of great importance in the period. The construction of school buildings was also one of the greatest advertising tools of the new Republican political regime.

  1. A construção da identidade docente de professores de educação física no início da carreira : um estudo de caso etnográfico na rede municipal de ensino de Porto Alegre-RS

    OpenAIRE

    Victor Julierme Santos da Conceição

    2014-01-01

    Considerando que a cultura escolar apresenta importante papel na produção de características marcantes nos atores que nela constroem experiência, esta tese trata de compreender o processo de construção da identidade docente de professores de Educação Física em início de carreira, a partir das relações que estabelecem com a cultura escolar em duas escolas na Rede Municipal de Ensino de Porto Alegre - RS (RMEPOA). O problema de conhecimento orientador desta tese configura-se na seguinte questão...

  2. Acidentes de trabalho: violência urbana e morte em Porto Alegre, Rio Grande do Sul, Brasil Work-related accidents: urban violence and death in Porto Alegre, Rio Grande do Sul, Brazil

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    Paulo Antonio Barros Oliveira

    1997-01-01

    Full Text Available O presente estudo identifica a magnitude dos óbitos relacionados com o trabalho entre os residentes de Porto Alegre. A partir das Declarações de óbito, e utilizando metodologia qualitativa, confirmando a causa das mortes através de inquérito familiar, foram investigados 159 óbitos, 18% dos 877 classificados como devidos a Causas externas ocorridos em 1992. Foram identificados 31 casos. As principais causas dos óbitos entre estes trabalhadores foram homicídio, em 58% dos casos (15 com arma de fogo e 3 com arma branca, seguido de acidente de trânsito, em 29% (5 colisões e 4 atropelamentos. Dos 31 óbitos, 17 foram de trabalhadores do mercado formal de trabalho e, dentre estes, 11 não se enquadram nas normas de notificação acidentária. Outros 14 óbitos foram de trabalhadores ligados: ao mercado informal de trabalho (7, à execução de atividades ilícitas (6 e à atividade ignorada (1, os quais também não são notificáveis. Isto desvela a omissão do Estado no tratamento desta questão e o quanto os dados oficiais não traduzem a realidade existente no cotidiano do trabalho. Os autores concluem que, para fins de Vigilância em Saúde, faz-se necessária a utilização de outros mecanismos de coleta de dados, além dos utilizados pela Previdência Social, de modo a incluir todas as situações reais de risco à saúde provenientes do trabalho.This article focuses on the magnitude of work-related deaths in Porto Alegre, the capital of Rio Grande do Sul State, Brazil. Death certificates were used to investigate 159 cases, or 18% of the 877 deaths from external causes in 1992. Some 31 cases were identified. The principal cause of death among these workers was homicide, with 58% of cases (15 from fire arms and 3 from knives, followed by traffic accidents, with 29% (5 motor vehicle collisions and 4 pedestrians run down by motor vehicles. Of these 31 deaths, 17 were workers from the formal labor market, of whom 11 did not fit into the

  3. en Porto Alegre (Brasil

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    Jorge Castellá Sarriera

    2005-01-01

    Full Text Available Este artículo presenta un estudio realizado con 11 familias latinoamericanas inmigrantes en la Gran Porto Alegre1, Brasil. Su objetivo fue dar cuenta de los procesos identitarios a través de las dimensiones personal, cultural, étnica-racial y nacional de estas familias. Para ello, se realizaron entrevistas semiestructuradas que fueron analizadas a través del método de análisis de contenido, a partir de categorías a priori. Se encontró que estas familias viven procesos aculturativos de integración cultural en los que mantienen costumbres de su país de origen y se adaptan al país de acogida. Únicamente una de las familias entrevistadas presenta asimilación cultural, caracterizada por la pérdida de la cultura de origen.

  4. Avaliação inicial do Serviço de Atendimento Móvel de Urgência na Cidade de Porto Alegre Evaluación inicial del servicio de atención móvil de urgencia en la ciudad de Porto Alegre Initial evaluation of the Mobile Emergency Medical Services in the city of Porto Alegre, Brazil

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    Gladis Semensato

    2011-03-01

    Full Text Available FUNDAMENTO: Os Serviços de Atendimento Móvel de Urgência (SAMU no Brasil têm resultados imediatos pouco conhecidos. OBJETIVO: Avaliar os preditores clínicos de sobrevida dos pacientes em parada cardiorrespiratória (PCR no ambiente não hospitalar atendidos pelo SAMU de Porto Alegre. MÉTODOS: Estudo observacional e prospectivo. Os desfechos avaliados foram sobrevida em 30 dias e até a alta hospitalar, além de escore do Cerebral Performance Category (CPC I-II. RESULTADOS: De janeiro a outubro de 2008, foram atendidos 593 pacientes em PCR não traumática e foram realizadas 260 tentativas de ressuscitação cardiopulmonar (RCP. Houve sucesso inicial em 52 (20,0% casos, estando 16 pacientes vivos no 30º (6,0% dia, 10 tendo recebido alta hospitalar (3,9%, sendo que 6 (2,3% com escore CPC I-II. A PCR no domicílio associou-se inversamente com a sobrevida no 30º dia (p = 0,001 e na alta hospitalar (p = 0,02. Um ritmo inicial "chocável" (p = 0,008 associou-se à sobrevida aos 30 dias. O intervalo tempo-resposta e tempo colapso até início da RCP foram significativamente menores em sobreviventes aos 30 dias. Em análise multivariada, foram preditores independentes de mortalidade aos 30 dias um ritmo inicial chocável (razão de chance [RC] = 0,28 e intervalo de confiança [IC] de 95,0% = 0,10 - 0,81; p = 0,02 e PCR no domicílio (RC = 3,0 e IC 95,0% = 1,04 - 8,7; p = 0,04. CONCLUSÃO: O atendimento pré-hospitalar da PCR em Porto Alegre tem resultados limitados, porém equiparáveis a outras localidades internacionais. É necessário o reforço de cada elo da corrente da sobrevivência para aperfeiçoar o atendimento pré-hospitalar, visando melhora de resultados clinicamente relevantes.FUNDAMENTO: Los Servicios de Atención Móvil de Urgencia (SAMU en el Brasil han resultados inmediatos poco conocidos. OBJETIVO: Evaluar los predictores clínicos de sobrevida de los pacientes en parada cardiorrespiratoria (PCR en el ambiente no hospitalario

  5. Homicídio seguido de suicídio: relato de caso Homicide followed by suicide: case report

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    Helena Dias de Castro Bins

    2009-01-01

    Full Text Available OBJETIVO: Examinar o fenômeno clínico de homicídio seguido de suicídio (HS a partir de um caso no qual o desfecho de suicídio não ocorreu por motivos alheios à vontade e às ações do sujeito. DESCRIÇÃO DO CASO: Trata-se do caso de um homem que matou sua namorada por ciúmes, por ocasião do término do relacionamento entre ambos, tentando, a seguir, o suicídio. No presente artigo, é dada especial ênfase aos aspectos forenses do caso, avaliado para fins de determinação de responsabilidade penal e acompanhado no Instituto Psiquiátrico Forense Dr. Maurício Cardoso, Porto Alegre (RS. COMENTÁRIOS: Ressalta-se que, ao se modificar o desfecho de um caso típico de HS, por não ter se consumado o suicídio do homicida, dois aspectos assumem relevância: as consequências legais a serem enfrentadas pelo sujeito e o manejo do impacto psíquico no sobrevivente. Do ponto de vista da prevenção, o conhecimento do fenômeno HS e dos fatores descritos como associados a ele justificaria uma constante atenção ao tema por parte dos profissionais de saúde mental. O presente relato foi autorizado pelo paciente através de termo de consentimento livre e esclarecido.OBJECTIVE: The clinical phenomenon of homicide followed by suicide (HS is examined through a case in which suicide was avoided despite the individual's will and actions. CASE DESCRIPTION: A man killed his girlfriend at the end of the relationship because of jealousy. After that, he attempted suicide. Special emphasis is given to the forensic aspects of the case, which has been assessed to determinate the individual's criminal responsibility and has been followed up at the Forensic Psychiatric Institute Dr. Maurício Cardoso, in Porto Alegre, state of Rio Grande do Sul, Brazil. COMMENTS: When the outcome of a typical case of HS is modified and the suicide of the murderer is not accomplished, two aspects become important: the legal consequences to be faced by the murderer and the

  6. Consumo de suplementos nutricionais por frequentadores de academias da cidade de Porto Alegre Consumo de suplementos nutricionales por los frecuentadores de las academias de la ciudad de Porto Alegre Consumption of nutritional supplements among individuals in Porto Alegre's fitness centers

    Directory of Open Access Journals (Sweden)

    Ana Paula Trussardi Fayh

    2013-03-01

    Full Text Available O objetivo do estudo foi verificar a prevalência do uso de suplementos alimentares nas academias da cidade de Porto Alegre. Foram entrevistados 316 indivíduos com idade entre 18-59 anos. A abordagem foi por voluntariedade, em 22 academias da cidade. Observou-se um expressivo uso de suplementos nutricionais pelos participantes (28,8%, e os homens utilizam mais suplementos do que as mulheres (pEl objetivo del estúdio fue verificar la prevalencia de la utilizacíon de suplementos dietéticos en las academias de la ciudad de Porto Alegre. Fueron entrevistadas 316 personas con edad entre 18 y 59 años. La abordaje fue por voluntariedad en 22 academias de la ciudad. Se ha observado un expresivo uso de suplementos nutricionales por los participantes (28,8%, y los hombres utilizan más los suplementos que las mujeres (pThe aim of this study was to verify the prevalence of the use of food supplements at fitness centers in the city of Porto Alegre. Were interviewed 316 individuals at an age range between 18 and 59. Individuals participated voluntarily in 22 fitness centers in the city. The study has revealed a significant use of nutritional supplements by the participants (28.8% and men intake more supplements than women (p<0.05. The most common supplements reported in the study were those mainly based on proteins, which are mainly chosen because of suggestions made by physical educators. The high intake of nutritional supplements indicates the necessity of alerting the population about the risks related to the inappropriate use of nutritional supplements.

  7. Aspectos psicossociais da imigração familiar na grande Porto Alegre Psychosocial aspects of familiar immigration at the Porto Alegre region (Brazil

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    Jorge Castellá Sarriera

    2005-04-01

    Full Text Available Neste artigo apresentam-se alguns aspectos psicossociais presentes no processo migratório de seis famílias hispano-americanas na região metropolitana de Porto Alegre. Estes aspectos, relatados através de entrevistas semi-estruturadas com os integrantes das famílias, indicam os principais tópicos que nortearam as entrevistas: suas trajetórias migracionais, decisão de imigrar, sua inserção na cultura local, suas relações comunitárias, identidade e expectativas de vida. São analisadas as formas como ocorrem as transições aculturativas no contexto local.On this article some psychosocial aspects included on the migratory process of six Hispanic families at the metropolitan region of Porto Alegre (Brazil are presented. These aspects, obtained through semi-structured interviews with the members of the families that had indicated the principal topics that guided the interviews: their emigrational paths, their decision to immigrate, their insertion on the local culture, their community relations, identity and life expectations. The ways by which the acculturative transitions on the local context happen are analyzed.

  8. Política socioambiental e de entorno do BNDES: dos ajustes espaciais aos corretivos territoriais: os casos das UHEs de Santo Antônio e Jirau (RO e da UHE de Belo Monte (PA

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    Luis Fernando Novoa Garzon

    2015-07-01

    Full Text Available O artigo procura apresentar a posição e o discurso paradoxais de um Banco que é ao mesmo tempo viabilizador de macro-ajustes espaciais e propositor de micro-correções territoriais. A política socioambiental e de entorno do BNDES são avaliadas a partir dos casos dos grandes projetos, especificamente o Complexos Hidrelétricos do Madeira e de Belo Monte.

  9. Distribuição espacial do risco: modelagem da mortalidade infantil em Porto Alegre, Rio Grande do Sul, Brasil Spatial risk distribution: modeling infant mortality in Porto Alegre, Rio Grande do Sul State, Brazil

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    Silvia E. Shimakura

    2001-10-01

    Full Text Available Estimação e mapeamento de perfis de risco são interesses da Epidemiologia. Neste trabalho, é analisada a distribuição espacial de casos de mortalidade infantil, comparados a controles de nascidos vivos amostrados do Sistema de Informações sobre Nascidos Vivos da cidade de Porto Alegre, Rio Grande do Sul, Brasil. A modelagem adotada neste trabalho baseia-se em um processo pontual espacial, na qual se define uma medida de risco que varia continuamente sobre a região de estudo e estimada por meio de métodos de modelos aditivos generalizados. Essa abordagem possui a vantagem de permitir a incorporação, no modelo, de efeitos de determinantes individuais e ecológicos de risco sob forma simples e de fácil interpretação. Também permite a construção de contornos de tolerância que auxiliam na identificação de áreas de alto/baixo risco e de um teste global da hipótese nula de risco constante relativa à região. A aplicação do método aos dados de mortalidade infantil mostrou variação espacial no risco altamente significativa para mortalidade neonatal e não significativa para mortalidade pós-neonatal.Estimation and mapping of risk profiles are the main concerns of epidemiology. This paper analyzes spatial distribution of infant mortality cases as compared to live-born controls from Porto Alegre, Rio Grande do Sul. The modeling framework adopted in this research work is a spatial point process. Under this structure, a risk measure which continuously varies over the study region is defined and estimated using generalized additive model methods. This approach has the advantage of allowing for risk factors that are simple and easy to interpret. The procedure also allows the construction of tolerance contours which help identify areas of significantly high/low risk and an overall test for the null hypothesis of constant risk over the region. Application of this method to infant mortality data showed a highly significant spatial

  10. Geography and Participatory Democracy in Brazil: Porto Alegre and Belo Horizonte Compared

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    Terence Wood

    2007-10-01

    Full Text Available This paper examines the participatory budgeting  process that an increasing number of municipalities, primarily but not exclusively in Brazil, are  using as a tool of governance. Background is  provided on municipal governance in Brazil as  well as on the Partido dos Trabalhadores, the political party primarily responsible for introducing participatory budgeting. This is followed by a  comparison of the participatory budgets of two  Brazilian cities: Porto Alegre and Belo Horizonte.  From this comparison we draw conclusions as to  how geography can condition the outcomes of  participatory budgeting processes. Resumen: Geografía y democracia participativa en Brasil:  Comparación entre Porto Alegre y Belo Horizonte Este artículo estudia el proceso de presupuestos  participativos que un número creciente de municipalidades, especialmente en Brasil, aunque no  exclusivamente, está utilizando como instrumento  de gobernabilidad. En el artículo se entrega información de fondo sobre los gobiernos municipales en Brasil y sobre el Partido de los Trabajadores, el partido político que es responsable de la  introducción del presupuesto participativo, para  posteriormente comparar los presupuestos participativos de dos ciudades brasileñas: Porto Alegre y  Belo Horizonte. Sobre la base de esta comparación sacamos conclusiones sobre cómo puede la  geografía condicionar el resultado de procesos de  presupuesto participativo.

  11. Evolution of the constructive adobe system in the Porcelain Industrial Unit of Vista Alegre (1937-1945

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    Alice Ruano

    2010-01-01

    Full Text Available The urban nucleus of the Porcelain Factory of Vista Alegre reveals a special interest in terms of the evolution of the traditional adobe construction in the town of Ílhavo, located in the district of Aveiro. Presenting a structured philosophy of intervention in the territory since its very beginning, it possesses a rich heritage in the field of construction and architecture. The measures planned and implemented in the second phase of Vista Alegre growth reporting its beginning to the ends of the 30's, and along the 40's, confirm it both in the rehabilitation, extension and new constructions in adobe masonry. Those measures were implemented during the structural changes of the Industrial Unit administration that only until this period belonged to the family of its founder. These changes creates one of the focus of innovation in the region, with new construction strategies and solutions in adobe buildings, which will prolonged the period of use of this construction system, noticeable in buildings dated of 1958 in the Vista Alegre and at least in 1970 in the town.

  12. Mapeando Programas de Redução de Danos da Região Metropolitana de Porto Alegre / Mapping harm reduction programs in the metropolitan region of Porto Alegre

    NARCIS (Netherlands)

    R. Quadros Rigoni (Rafaela); H.C. Nardi (Henrique)

    2009-01-01

    textabstractThis study mapped and described 11 harm reduction interventions/programs in Greater Metropolitan Porto Alegre, Rio Grande do Sul State, Brazil, in 2004-2006. Mapping was based on interviews and analysis of available documents and comparison with a previous study with data from 2003. We

  13. Profile of ostomy patients residing in Pouso Alegre city

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    Geraldo Magela Salomé

    2015-04-01

    Full Text Available The objective was to characterize the clientele of ostomy patients living in Pouso Alegre, Minas Gerais, Brazil. Among the causes that led patients to acquire an ostomy, the most prevalent was neoplasia; the type of ostomy was a permanent colostomy. Most people were not told that they would be submitted to the stoma. In addition, individuals were not subject to stoma demarcation, and irrigation was not performed. Regarding the type of complication, 34 (48.60% had dermatitis; 14 (20%, retraction; and 13 (18.60%, prolapse. With respect to stoma diameter, 34 (48.60% had 20–40 mm and 23 (32.90%, 40–60 mm. With this study, we became aware of the profile of ostomized patients treated at the municipality of Pouso Alegre/MG; it is expected that, with these data, the improvement of care to this population can be subsidized. We suggest that nursing professionals think of health action strategies with respect to guidance on stoma manufacture and to measures aiming for the prevention of possible complications, promoting ways to help these patients to make decisions and to verbalize feelings, so that they feel supported in coping with changes in their body image, for the sake of survival. Resumo: O objetivo foi caracterizar a clientela de estomizados residentes em Pouso Alegre, Minas Gerais. maioria das causas que levaram os pacientes a adquirir ostomia foi neoplasia; o tipo de ostomia era colostomia em definitivo. A maioria dos indivíduos não foram comunicados de que seriam submetidos ao estoma. Além disso, os indivíduos não foram submetidos à demarcação do estoma e não foi realizada irrigação. Com relação ao tipo de complicação, 34(48,60% apresentaram dermatite; 14 (20%, retração e 13 (18,60%, prolapso. Com relação ao diâmetro do estoma, 34 (48,60% mensuravam 20 a 40 mm e 23 (32,90%, 40 a 60 mm. Este estudo possibilitou conhecer o perfil dos pacientes ostomizados atendidos do município de Pouso Alegre/MG e espera-se que, com

  14. A ação externa dos governos subnacionais no Brasil: os casos do Rio Grande do Sul e de Porto Alegre. Um estudo comparativo de dois tipos de atores mistos The foreign actions of Brazilian governments: the cases of Rio Grande do Sul and Porto Alegre. A comparative study of two kinds of mixed actors

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    Mónica Salomón

    2007-06-01

    Full Text Available No artigo são descritas e comparadas as atividades externas de dois atores subnacionais de níveis de governo diferentes: a prefeitura de Porto Alegre (nível local e o governo estadual do Rio Grande do Sul (nível regional. Os dois atores considerados têm desenvolvido uma atividade externa destacável e pioneira no contexto brasileiro. O núcleo do artigo é a descrição e a comparação das dimensões institucional (estrutura paradiplomática e substancial (agenda e instrumentos dos dois governos subnacionais. Nosso principal objetivo é contribuir, a partir da análise desses casos concretos, para a conceituação diferenciada dos governos locais e dos regionais como atores internacionais. Tanto uns como outros podem ser considerados atores internacionais mistos, em parte condicionados pela soberania que compartilham com os outros níveis de governo no território que administram, mas também mais livres que os governos centrais no que diz respeito a suas opções de política exterior, com alguns pontos de atuação semelhantes às dos atores não estatais. Nossas perguntas de partida são como os dois tipos de atores conjugam as características próprias dos atores condicionados pela soberania e as dos livres e se há diferenças significativas entre a ação encaminhada nesse sentido pelos governos locais e pelos regionais.In this article we compare the external activities carried out by two subnational actors of different governmental levels: the Municipality of Porto Alegre (local government and the State of Rio Grande do Sul (regional government. These two actors have developed external activities that are both relevant and pioneering in the Brazilian context. A description and a comparison of the institutional dimension (paradiplomatic structure and the substantial dimension (agenda and instruments of these two subnational governments form the core of this article. Based on the analysis of these two cases, our aim is to contribute

  15. Kooperative Planung im Kontext informeller Siedlungen in Porto Alegre, Brasilien

    OpenAIRE

    Zellhuber, Andrea

    2010-01-01

    Wie die meisten lateinamerikanischen Großstädte zeichnet sich die Peripherie von Porto Alegre durch ein dynamisches und ungeregeltes Siedlungswachstum in Form von Landbesetzungen und illegalen Parzellierungen aus. Mit Hilfe von Methoden der qualitativen Sozial¬forschung werden anhand einer Fallstudie insbesondere die damit verbundenen städtischen Umweltkonflikte analysiert und deren Einbeziehung in kooperative Planungsverfahren untersucht. Die Prozesse des ungeregelten Siedlungswachstums am S...

  16. Consumo de suplementos nutricionais por frequentadores de academias da cidade de Porto Alegre Consumo de suplementos nutricionales por los frecuentadores de las academias de la ciudad de Porto Alegre Consumption of nutritional supplements among individuals in Porto Alegre's fitness centers

    OpenAIRE

    Ana Paula Trussardi Fayh; Cláudia Villela da Silva; Flávia Roanna Dotto de Jesus; Gabriela Kerpel Costa

    2013-01-01

    O objetivo do estudo foi verificar a prevalência do uso de suplementos alimentares nas academias da cidade de Porto Alegre. Foram entrevistados 316 indivíduos com idade entre 18-59 anos. A abordagem foi por voluntariedade, em 22 academias da cidade. Observou-se um expressivo uso de suplementos nutricionais pelos participantes (28,8%), e os homens utilizam mais suplementos do que as mulheres (p

  17. Vida Alegre: Preliminary Findings of a Depression Intervention for Immigrant Latino Mothers

    Science.gov (United States)

    Piedra, Lissette M.; Byoun, Soo-Jung

    2012-01-01

    Objectives: This article reports the outcome of a pilot study of a cognitive behavioral group therapy (CBGT) intervention--"Vida Alegre" (the contented life)--designed for use with depressed immigrant mothers living in communities with small but rapidly growing Hispanic populations. Method: The study used a pretest/posttest/follow-up…

  18. Arte e criação artística em contexto urbano: um estudo de caso de política pública em Porto Alegre (RS, Brasil

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    Ana Luiza Carvalho da Rocha

    2017-01-01

    Full Text Available n Porto Alegre the production of public art has been since 1991 an object of specific concern for the Coordination of Plastic Arts of the Municipal Department of Culture, which instituted the contest Espaço Urbano & Espaço Arte, a project that ended up directly influencing a series of cultural policies. It is worth mentioning the performance of one of its coordinators, who reports her experience with the origins of the contest and its unfolding as a public policy. It is a reflective essay on the place of public art in the contemporary urban space.

  19. Capacidade de Carga Turística: Um Estudo no Caminhos Rurais de Porto Alegre, RS

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    Juliane Magagnin Da Soller

    2013-10-01

    Full Text Available Nesse artigo, apresenta-se o contexto do turismo de base comunitária, além de breve histórico e discussão acerca do conceito e da metodologia da Capacidade de Carga Turística, assim como a adaptação da metodologia para estudo aqui relatado. Descreve-se o estudo realizado para determinar a Capacidade de Carga Turística, tendo por amostra as propriedades rurais partícipes da Associação Porto Alegre Rural (POA RURAL, mais especialmente do roteiro Caminhos Rurais de Porto Alegre, no estado do Rio Grande do Sul. Propôs-se adaptar a para o local a metodologia de cálculo de Capacidade de Carga Turística a partir de Cifuentes (1992; et al 1996, considerando suas particularidades, principalmente aquelas que dizem respeito a saúde e ao bem-estar das famílias que recebem os visitantes e aos impactos ambientais causados pelas construções de infraestrutura turística. A Capacidade de Carga Turística é uma metodologia desenvolvida para áreas preservadas de uso público. Assim, não costuma dar enfoque às questões referentes à comunidade local e aos resíduos gerados pelas instalações e pelos serviços prestados no Turismo.  Tourist Carrying Capacity: A study in the Caminhos Rurais de Porto Alegre, RS  - This paper presents the community based tourism and a brief history, concept and methodology of Tourist Carrying Capacity, and the adaptation of that methodology to the present case. The paper presents the study to determine the Tourist Carrying Capacity in rural proprieties that currently constitute the Porto Alegre Rural Association (RURAL POA, the tourist destination Caminhos Rurais de Porto Alegre, Rio Grande do Sul. The research proposes to adapt the methodology of Tourist Carrying Capacity from Cifuentes (1992, et al 1996, to the Caminhos Rurais, considering its particularities, especially those relate to health and well-being of families who receives visitors, and the environmental impacts caused by the construction of

  20. Triagem neonatal para hemoglobinopatias: um estudo piloto em Porto Alegre, Rio Grande do Sul, Brasil Neonatal screening for hemoglobinopathies: a pilot study in Porto Alegre, Rio Grande do Sul, Brazil

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    Liane Esteves Daudt

    2002-06-01

    Full Text Available Este estudo, tem como o objetivo determinar a freqüência das hemoglobinopatias em neonatos, que realizaram a coleta para o Teste de Triagem Neonatal para Distúrbios Metabólicos no Hospital de Clínicas de Porto Alegre. O método utilizado para a determinação das variantes da hemoglobina, foi eletroforese por focalização isoelétrica em amostra de sangue total, coletadas em papel filtro por punção do calcanhar. Para confirmação diagnóstica dos casos alterados, foram realizadas eletroforeses das hemoglobinas em acetato de celulose com pH 8,6 e em citrato de ágar com pH 6,2, em amostra de sangue total dos neonatos e dos seus progenitores. Foram analisados, 1.615 indivíduos, e identificada a presença da hemoglobina S em 20 amostras e da hemoglobina C em seis amostras. Esses valores, correspondem a uma freqüência de 1,2% para o gene da anemia falciforme e 0,4% para o gene da doença de hemoglobina C, independente da raça ou ascendência. Esses dados, sugerem que a inclusão da triagem neonatal universal para hemoglobinopatias nos projetos já implementados para fenilcetonúria e hipotireoidismo congênito, apresenta vantagens e deve ser considerada pelos programas de saúde.This study was conducted to establish the frequency of hemoglobinopathies among newborns undergoing screening tests for metabolic diseases at the University Hospital (Hospital de Clínicas in Porto Alegre, Rio Grande do Sul, Brazil. Testing for abnormal hemoglobins was performed by isoelectric focusing electrophoresis on agarose gel with blood obtained by heel stick and applied to filter paper. For confirmatory testing of abnormal neonatal screening, a venopuncture blood sample was obtained from the infant and parents and then submitted to hemoglobin electrophoresis on cellulose acetate at pH 8.6 and citrate agar at pH 6.2. A total of 1,615 subjects were studied: 20 samples showed the Hb S pattern and six samples showed Hb C. Thus, frequency of the sickle cell

  1. Duas leituras sobre as transformações da cultura urbana de Porto Alegre nos anos 1970: entre memória e ficção

    OpenAIRE

    Monteiro, Charles

    2004-01-01

    O artigo problematiza a memória e a percepção das transformações dos espaços, das formas de sociabilidade e da cultura urbana em Porto Alegre nos anos 1970 através das crônicas de Nilo Ruschel e Moacyr Scliar. Abstract The present article discusses memory, the perception of changes in urban spaces, forms of sociability and a new urban culture in Porto Alegre through the chronicles of Nilo Ruschel and Moacyr Scliar, written in the 1970th . Palavras-Chave: Porto Alegre. História urbana. Crôn...

  2. Patrimônio cultural, memória social e informação: a cidade de Porto Alegre na palma da sua mão?

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    Marina Leitão Damin

    2018-05-01

    Full Text Available Reflete sobre os vestígios memoriais colecionados por uma cidade, Porto Alegre (Brasil, a vida social dos objetos inseridos nessa coleção, no sentido não só de sua patrimonialização, mas de sua dinâmica de memoração, bem como da visibilidade desse conjunto de objetos que estão em constante movimento de criação e transformação. O corpus de análise considera dois objetos digitais: o aplicativo Porto Alegre Guide, como um suporte à consolidação ou à criação de memórias sobre a cidade de Porto Alegre e o site da Prefeitura Municipal, que reúne equipamentos e espaços valorizados como patrimônios da cidade. Objetiva, a partir dessa análise, compreender a relação entre memória, informação e patrimônio cultural. Conclui que as múltiplas identidades e polifonias existentes na cidade de Porto Alegre e que têm potencialidade para emergirem como patrimônio cultural não são divulgadas pela Prefeitura Municipal, nem pelo aplicativo Porto Alegre Guide.

  3. Triagem neonatal para hemoglobinopatias: um estudo piloto em Porto Alegre, Rio Grande do Sul, Brasil

    Directory of Open Access Journals (Sweden)

    Liane Esteves Daudt

    Full Text Available Este estudo, tem como o objetivo determinar a freqüência das hemoglobinopatias em neonatos, que realizaram a coleta para o Teste de Triagem Neonatal para Distúrbios Metabólicos no Hospital de Clínicas de Porto Alegre. O método utilizado para a determinação das variantes da hemoglobina, foi eletroforese por focalização isoelétrica em amostra de sangue total, coletadas em papel filtro por punção do calcanhar. Para confirmação diagnóstica dos casos alterados, foram realizadas eletroforeses das hemoglobinas em acetato de celulose com pH 8,6 e em citrato de ágar com pH 6,2, em amostra de sangue total dos neonatos e dos seus progenitores. Foram analisados, 1.615 indivíduos, e identificada a presença da hemoglobina S em 20 amostras e da hemoglobina C em seis amostras. Esses valores, correspondem a uma freqüência de 1,2% para o gene da anemia falciforme e 0,4% para o gene da doença de hemoglobina C, independente da raça ou ascendência. Esses dados, sugerem que a inclusão da triagem neonatal universal para hemoglobinopatias nos projetos já implementados para fenilcetonúria e hipotireoidismo congênito, apresenta vantagens e deve ser considerada pelos programas de saúde.

  4. Triagem neonatal para hemoglobinopatias: um estudo piloto em Porto Alegre, Rio Grande do Sul, Brasil

    Directory of Open Access Journals (Sweden)

    Daudt Liane Esteves

    2002-01-01

    Full Text Available Este estudo, tem como o objetivo determinar a freqüência das hemoglobinopatias em neonatos, que realizaram a coleta para o Teste de Triagem Neonatal para Distúrbios Metabólicos no Hospital de Clínicas de Porto Alegre. O método utilizado para a determinação das variantes da hemoglobina, foi eletroforese por focalização isoelétrica em amostra de sangue total, coletadas em papel filtro por punção do calcanhar. Para confirmação diagnóstica dos casos alterados, foram realizadas eletroforeses das hemoglobinas em acetato de celulose com pH 8,6 e em citrato de ágar com pH 6,2, em amostra de sangue total dos neonatos e dos seus progenitores. Foram analisados, 1.615 indivíduos, e identificada a presença da hemoglobina S em 20 amostras e da hemoglobina C em seis amostras. Esses valores, correspondem a uma freqüência de 1,2% para o gene da anemia falciforme e 0,4% para o gene da doença de hemoglobina C, independente da raça ou ascendência. Esses dados, sugerem que a inclusão da triagem neonatal universal para hemoglobinopatias nos projetos já implementados para fenilcetonúria e hipotireoidismo congênito, apresenta vantagens e deve ser considerada pelos programas de saúde.

  5. Avaliação inicial do Serviço de Atendimento Móvel de Urgência na Cidade de Porto Alegre

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    Gladis Semensato

    2011-03-01

    Full Text Available FUNDAMENTO: Os Serviços de Atendimento Móvel de Urgência (SAMU no Brasil têm resultados imediatos pouco conhecidos. OBJETIVO: Avaliar os preditores clínicos de sobrevida dos pacientes em parada cardiorrespiratória (PCR no ambiente não hospitalar atendidos pelo SAMU de Porto Alegre. MÉTODOS: Estudo observacional e prospectivo. Os desfechos avaliados foram sobrevida em 30 dias e até a alta hospitalar, além de escore do Cerebral Performance Category (CPC I-II. RESULTADOS: De janeiro a outubro de 2008, foram atendidos 593 pacientes em PCR não traumática e foram realizadas 260 tentativas de ressuscitação cardiopulmonar (RCP. Houve sucesso inicial em 52 (20,0% casos, estando 16 pacientes vivos no 30º (6,0% dia, 10 tendo recebido alta hospitalar (3,9%, sendo que 6 (2,3% com escore CPC I-II. A PCR no domicílio associou-se inversamente com a sobrevida no 30º dia (p = 0,001 e na alta hospitalar (p = 0,02. Um ritmo inicial "chocável" (p = 0,008 associou-se à sobrevida aos 30 dias. O intervalo tempo-resposta e tempo colapso até início da RCP foram significativamente menores em sobreviventes aos 30 dias. Em análise multivariada, foram preditores independentes de mortalidade aos 30 dias um ritmo inicial chocável (razão de chance [RC] = 0,28 e intervalo de confiança [IC] de 95,0% = 0,10 - 0,81; p = 0,02 e PCR no domicílio (RC = 3,0 e IC 95,0% = 1,04 - 8,7; p = 0,04. CONCLUSÃO: O atendimento pré-hospitalar da PCR em Porto Alegre tem resultados limitados, porém equiparáveis a outras localidades internacionais. É necessário o reforço de cada elo da corrente da sobrevivência para aperfeiçoar o atendimento pré-hospitalar, visando melhora de resultados clinicamente relevantes.

  6. Detecção de anticorpos para Toxoplasma gondii em soro de suínos criados e abatidos em frigoríficos da região da grande Porto Alegre-RS, Brasil Detection of antibodies against Toxoplasma gondii in sera from swine bred and slaughtered in the great Porto Alegre-RS abbattoirs, Brazil

    Directory of Open Access Journals (Sweden)

    Cristina Germani Fialho

    2003-10-01

    Full Text Available No presente trabalho, objetivou-se contribuir com dados sobre a freqüência de sororeagentes para Toxoplasma gondii em suínos criados e abatidos na Região da Grande Porto Alegre e fornecer subsídios sobre a importância da transmissão deste protozoário, por suínos. Foram coletadas amostras de 240 suínos em frigoríficos da região. A freqüência de anticorpos anti- Toxoplasma gondii, determinada através da técnica de hemaglutinação indireta, foi de 20 % de soros iguais ou superiores a diluição 1:64. Na técnica de imunofluorescência indireta, foram encontrados 33,75% de soro com diluição iguais a 1:16 ou superiores.This report objectived to contribuite with data about the antibodies occurence of Toxoplasma gondii in swine bred and slaughtered in the area of Great Porto Alegre- RS, Brazil. The data should supply with subsidies on the importance of this protozoan transmission through swines. Samples were taken from 240 swines at slaughterhouses in that region. The frequency of anti-Toxoplasma gondii antibodies, determinanet through the indirect hemagglutination technic was of 20% of serum equal or superior to 1:64 dilution. In the indirect immunofluorescence technic was found 33.75% in serum with a diluition equal to 1:16 or superior.

  7. Metrópole de Risco : o caso da Vila Dique e do aterro sanitário da zona norte na poluição das águas superficiais e subterrâneas das bacias hidrográficas do Arroio da Areia e Passo das Pedras/Porto Alegre-RS

    OpenAIRE

    Adriano Lima Troleis

    2009-01-01

    O presente estudo investigou a influência da vila Dique o do Aterro Sanitário da Zona Norte, na qualidade das águas superficiais e subterrâneas, das bacias hidrográficas do arroio da Areia e Passo das Pedras, no município de Porto Alegre, Rio Grande do Sul, Brasil. A metodologia deste estudo envolveu duas estratégias de abordagem: teórico-conceitual e operacional. A teórica orientou-se pelos eixos de abordagem: qualidade das águas; processo de urbanização mundial, brasileiro e da cidade de Po...

  8. Cidades inteligentes como nova prática para o gerenciamento dos serviços e infraestruturas urbanos: a experiência da cidade de Porto Alegre

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    Marcos Cesar Weiss

    2015-09-01

    Full Text Available Este artigo tem por objetivo discutir a experiência da cidade de Porto Alegre relativamente à materialização do conceito de cidade inteligente. Para tanto, utilizou-se uma abordagem metodológica de caráter qualitativo e exploratório, baseada em estudo de caso, com coleta de dados em fontes primárias e secundárias realizada em 2013. Os resultados mostram que a implementação de inovações em tecnologias da informação e comunicação (TICs na prestação dos serviços públicos proporcionou maior eficiência nas atividades que envolvem a gestão da cidade, com importantes resultados em favor dos atores que ali se inserem. Pretendeu-se com este trabalho contribuir com a agenda de pesquisas e discussões sobre a gestão dos espaços urbanos, trazendo o conceito de cidade inteligente como uma prática viabilizadora do desenvolvimento sustentável das cidades brasileiras.

  9. Epidemiological, clinical and immunohistochemical aspects of canine lymphoma in the region of Porto Alegre, Brazil

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    Elisa B. Neuwald

    2014-04-01

    Full Text Available This paper describes the epidemiological, clinical and immunohistochemical characteristics of canine lymphomas diagnosed in the region of Porto Alegre, Brazil. Thirty dogs were enrolled in the study; most of them were male (60%, mixed-breed (23% and middle-aged or older. The majority (87% of affected dogs showed the multicentric form. The B-cell phenotype was most frequently detected (62%; 37% of the animals were in clinical stage IV, and 83% were classified as sub-stage "b". Lymphadenopathy was observed in 67% of the cases, and dyspnea, prostration, decreased appetite and vomiting were the most common clinical signs encountered. Anemia was a frequently encountered laboratory alteration (57%, as were leukocytosis (40%, thrombocytopenia (33%, lymphopenia (30%, hyperglobulinemia (20% and hypercalcemia (13%. The results of this study indicate that the clinical features of dogs with lymphoma in the region of Porto Alegre are similar to those observed worldwide.

  10. INSTITUIÇÕES GOVERNAMENTAIS E PARTICIPAÇÃO CIDADÃ: FINANÇAS PÚBLICAS INCLUSIVAS EM PORTO ALEGRE - BRASIL

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    Aaron Schneider

    2009-12-01

    Full Text Available A recurrent theme in political science links new forms of participatory democracy to citizens’ attitudes and their willingness to abide with their obligation to pay taxes. In this paper we examine how the citizens of Porto Alegre - Brazil view tax paying, from the perspective of material and non-material benefits. Usingsurvey data collected in Porto Alegre in 2003 with 687 interviews, we find that, overall poor sectors show a tendency to support tax paying because of the material benefits, while middle sectors also have supporting attitudes, but for non-material benefits. Through the use of logit regression we find empirical evidence of a connection between trust in participatory budget and citizenssupport for the municipal government.

  11. Leucemia mielóide aguda: o olhar dos anos 2000 no Serviço de Hematologia do Hospital de Clínicas de Porto Alegre-RS Acute myeloid leukemia from the year 2000 point of view Hematology Service - Hospital de Clínicas de Porto Alegre-RS

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    Rosane I. Bittencourt

    2008-01-01

    Full Text Available A leucemia mielóide aguda (LMA representa uma preocupação para os especialistas, porque perfaz um percentual alto das leucemias no adulto e o sucesso terapêutico ainda é insatisfatório. A partir do ano 2000, o Serviço de Hematologia do Hospital de Clínicas de Porto Alegre definiu estratégias para diagnóstico, tratamento e seguimento das LMAs, de acordo com o subtipo FAB, idade, citogenética e performance status (ECOG. Todos os casos de LMA "de novo"não promielocítica, em adultos (15 a 65 anos foram acompanhados prospectivamente, desde outubro de 2001, data da implantação do protocolo c,ompreendendo três fases de tratamento: indução com o tradicional "7+3", citarabina 100 mg/m²/dia em infusão contínua em 7d, e daunorrubicina 60 mg/m²/dia em 3d e citarabina intratecal no D1 nas LMA M4 e M5. Após a recuperação medular, segue a consolidação idêntica à indução e posteriormente a intensificação com dois ou três ciclos de altas doses de citarabina 6 g/m²/dia por três dias. Foram diagnosticados, entre outubro/01 e dezembro/05, 69 pacientes portadores de LMA e destes, 39 com LMA "de novo"e idade entre 15 e 65 anos. Neste grupo foram analisadas a taxa de remissão, a taxa de recaída, a refratariedade e o tempo de sobrevida global. No final da observação foram encontrados: a taxa de indução de remissão 75%; aconteceram 12 (40% recaídas, 7 (19% foram refratários ao tratamento. A sobrevida global foi 37% em 56 meses, representando um incremento aos resultados obtidos no Serviço na década passada.Acute myeloid leukemia (AML is still a concern for hematologists as it represents a significant percentage of adult leukemias and the therapeutic success rates are unsatisfactory. In 2000, the Hematology Department of Hospital de Clínicas de Porto Alegre defined strategies for the diagnosis, treatment and follow up of AML patients according to the FAB subtype classification, age, cytogenetic tests and performance status

  12. Decreasing flood risk perception in Porto Alegre - Brazil and its influence on water resource management decisions

    Science.gov (United States)

    Allasia, D. G.; Tassi, R.; Bemfica, D.; Goldenfum, J. A.

    2015-06-01

    Porto Alegre is the capital and largest city in the Brazilian state of Rio Grande do Sul in Southern Brazil with approximately 1.5 million inhabitants. The city lies on the eastern bank of the Guaiba Lake, formed by the convergence of five rivers and leading to the Lagoa dos Patos, a giant freshwater lagoon navigable by even the largest of ships. This river junction has become an important alluvial port as well as a chief industrial and commercial centre. However, this strategic location resulted in severe damage because of its exposure to flooding from the river system, affecting the city in the years 1873, 1928, 1936, 1941 and 1967. In order to reduce flood risk, a complex system of levees and pump stations was implemented during 1960s and 1970s. Since its construction, not a single large flood event occurred. However, in recent years, the levees in the downtown region of Porto Alegre were severally criticized by city planners and population. Several projects have been proposed to demolish the Mauá Wall due to the false perception of lack of flood risk. Similar opinions and reactions against flood infrastructure have been observed in other cities in Brazil, such as Itajaí and Blumenau, with disastrous consequences. This paper illustrates how the perception of flood risk in Porto Alegre has changed over recent years as a result of flood infrastructure, and how such changes in perceptions can influence water management decisions.

  13. Diferenças entre fatores de risco para infecção pelo HIV em usuários de drogas injetáveis do Rio de Janeiro e Porto Alegre Risks differences of HIV infection between injection drug users in Rio de Janeiro and Porto Alegre

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    Raquel De Boni

    2005-01-01

    Full Text Available INTRODUÇÃO: No Brasil, aproximadamente 19 mil pessoas adquiriram o vírus HIV por meio do uso de drogas injetáveis desde o início da epidemia, com a soroprevalência em amostras destes usuários variando entre 25% e 65%. O objetivo deste estudo é comparar os comportamentos de risco para infecção por HIV entre amostras de usuários de cocaína injetável do Rio de Janeiro e de Porto Alegre. MÉTODOS: Comparação entre dados de estudos transversais conduzidos em Porto Alegre e no Rio de Janeiro. Um grupo de 250 indivíduos que haviam utilizado cocaína injetável nos seis meses prévios à coleta respondeu ao RBA (Risk Behaviour Assessement e realizou testagem anti-HIV em ambos os centros. RESULTADOS: Não houve diferença estatisticamente significativa entre os dados demográficos, exceto entre as médias de idade (31 anos no Rio de Janeiro e 28 anos em Porto Alegre. Em Porto Alegre, houve maior uso de cocaína injetável e maior número de comportamentos de risco relacionados a este uso. No Rio de Janeiro, houve mais comportamentos sexuais de risco e uso mais freqüente de cocaína aspirada e álcool. DISCUSSÃO: Os usuários de cocaína injetável das duas regiões estudadas apresentavam freqüências diferentes nos comportamentos de risco para HIV, e estes comportamentos parecem estar relacionados com o tipo, a via e a freqüência das drogas utilizadas. Os dados foram coletados entre 1994 e 1997, quando o uso de crack era menor nestas cidades, o que pode ter alterado o padrão atual de comportamentos de risco para HIV em usuários de cocaína.INTRODUCTION: In Brazil, about 19.000 of HIV cases have been attributed to injection drug use, with the seroprevalence among such samples ranging from 25% to 65%. The aim of this study is to compare drug using and HIV risk behaviors among injection cocaine users in Rio de Janeiro and Porto Alegre. METHODS: Comparative analysis of cross-sectional data from two studies conducted in Porto Alegre and

  14. Entre el irse y el volver. Reconfiguración en las prácticas espaciales de campesinos retornados en Los Montes de María : Caso Vereda Villa Colombia y Borracheras, Departamento de Sucre, Colombia (2004-2012)

    OpenAIRE

    Ospina Florido, Byron Giovanny

    2013-01-01

    El presente trabajo aborda, desde el estudio de caso, los procesos de retorno campesino en la subregión de Los Montes de María. Estos procesos fueron estudiados a partir de la identificación y análisis de las reconfiguraciones en las prácticas espaciales de dos comunidades campesinas que después tres y cuatro años de desplazamiento forzado, deciden en el 2004 y de manera colectiva retornar a sus veredas de origen, a saber: VillaColombia y Borracheras en el municipio de Ovejas, departamento de...

  15. Mapas imaginários sobre Porto Alegre: as representações da cidade no cinema

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    Miriam de Souza Rossini

    2010-12-01

    Full Text Available Este artigo apresenta os procedimentos de pesquisa e os resultados obtidos no subgrupo Cinema da pesquisa Porto Alegre imaginada: representações dos cidadãos sobre a cidade. Ao longo de 2007 e 2008, foram mapeados os filmes produzidos e exibidos em Porto Alegre, em diferentes formatos e suportes, e após foi feita a análise do corpus conforme as categorias propostas no projeto geral da pesquisa. O objetivo era compreender como a cidade era percebida e representada nas imagens audiovisuais cinematográficas. Na análise, observamos a estética visual e sonora, a estrutura narrativa e as principais temáticas. A cidade que surge nas telas de cinema com certeza é muito diferente do imaginário que existe sobre a cidade real. Ao invés de uma grande metrópole moderna, o que se percebe é uma cidade que mal consegue sair dos seus limites oitocentistas.

  16. Definição de níveis aceitáveis baseados no risco para hidrocarbonetos no Município de Porto Alegre segundo a metodologia RBCA Definition of risk-based screening levels to hydrocarbons in Porto Alegre municipality according to the RBCA methodology

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    Eri Takeuchi

    2009-12-01

    Full Text Available O presente estudo definiu valores de NABR (Níveis Aceitáveis Baseados no Risco para hidrocarbonetos no Município de Porto Alegre, de acordo a metodologia RBCA, adotando-se dados hidrogeológicos dos compartimentos Embasamento Cristalino alterado e Depósitos Sedimentares Quaternários. Os parâmetros de exposição adequados à população do município, bem como dados de toxicidade dos compostos selecionados, foram definidos a partir de fontes bibliográficas e bancos toxicológicos disponíveis. As tabelas de referência geradas são, em geral, mais restritivas para o Embasamento Cristalino em relação aos Depósitos Sedimentares. Comparados às tabelas de referência da Cetesb, os valores correspondentes a Porto Alegre são inferiores, resultando na necessidade de investigações ambientais mais detalhadas em áreas impactadas por hidrocarbonetos.This study defined RBSL (Risk Based Screening Levels values to hydrocarbons in Porto Alegre, Southern Brazil. The values were obtained through the RBCA methodology, using hydrogeological data from the Crystalline Altered Basement and the Quaternary Sedimentary Deposits. The exposure parameters appropriate to the urban population, as well as toxicity data of selected compounds, were obtained from bibliographical sources and toxicological databases. The reference tables demonstrated that the Crystalline Altered Basement values, in general, are more restrictive than those from the Quaternary Sedimentary Deposits. In comparison to Cetesb's reference tables, the values in Porto Alegre are lower, resulting in the need of more detailed environmental investigations in hydrocarbons polluted areas.

  17. Uurban Forestry Evaluations: Quantitative Surveys on Vegetation of Green Tunnels in Porto Alegre, RS

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    Luciane Teresa Salvi

    2010-12-01

    Full Text Available Os túneis verdes, objetos de estudo deste trabalho, constituem estruturas paisagísticas recorrentes na paisagem de Porto Alegre. Formados pela densa arborização viária, integram a floresta urbana da capital gaúcha e representam uma alternativa aos projetos dedicados ao fomento da vegetação em ambientes urbanizados. As propostas que objetivam a implantação desses túneis devem considerar o aumento da densidade e diversidade da flora, sendo necessária a realização de diagnósticos da vegetação existente como subsídio para a formulação de tais projetos. Esta pesquisa avalia aspectos referentes à diversidade e à composição das espécies vegetais formadoras de alguns túneis verdes da cidade de Porto Alegre, RS, estabelecendo um comparativo entre as espécies existentes, tendo em vista que o manejo dessa vegetação linear representa uma das ferramentas que pode ser empregada visando ao aumento da densidade e diversidade das florestas urbanas.

  18. Consumo de suplementos nutricionais por frequentadores de academias da cidade de Porto Alegre

    OpenAIRE

    Fayh, Ana Paula Trussardi; Silva, Cláudia Villela da; Jesus, Flávia Roanna Dotto de; Costa, Gabriela Kerpel

    2013-01-01

    O objetivo do estudo foi verificar a prevalência do uso de suplementos alimentares nas academias da cidade de Porto Alegre. Foram entrevistados 316 indivíduos com idade entre 18-59 anos. A abordagem foi por voluntariedade, em 22 academias da cidade. Observou-se um expressivo uso de suplementos nutricionais pelos participantes (28,8%), e os homens utilizam mais suplementos do que as mulheres (p

  19. Genotoxic effect of polycyclic aromatic hydrocarbons in the metropolitan area of Porto Alegre, Brazil, evaluated by Helix aspersa (Mueller, 1774)

    Energy Technology Data Exchange (ETDEWEB)

    Ianistcki, M. [Laboratorio de Genetica Toxicologica, Department of Biology, ULBRA, Av. Farroupilha 8001, Pr. 14/Sala 218, Bairro Sao Jose, CEP 92425-900 Canoas, RS (Brazil); Dallarosa, J. [Laboratorio de Ecologia, UFRGS (Brazil); Sauer, C.; Teixeira, C.E. [Fundacao Estadual de Protecao Ambiental Henrique Luis Roessler, FEPAM, RS (Brazil); Silva, J. da, E-mail: juliana.silva@ulbra.b [Laboratorio de Genetica Toxicologica, Department of Biology, ULBRA, Av. Farroupilha 8001, Pr. 14/Sala 218, Bairro Sao Jose, CEP 92425-900 Canoas, RS (Brazil)

    2009-07-15

    The purpose of this study was to biomonitor metropolitan areas of Porto Alegre (Brazil) for PAHs associated with atmospheric particles and check their effects on the DNA of the land mollusk Helix aspersa. The sampling sites are located in an urban area with heavy traffic: (i) Canoas, (ii) Sapucaia do Sul, and (iii) FIERGS/Porto Alegre. The samples were collected during a continuous period of 24 hours during 15 days using Stacked Filter Units (SFU) on polycarbonate filters (two separated size fractions: PM{sub 10-2.5} and PM{sub <2.5}). The concentrations of 16 major PAHs were determined according to EPA. Comet assay on H. aspersa hemolymph cells was chosen for genotoxicity evaluation. This evaluation shows that, in general, the smaller PM-size fractions (PM{sub <2.5}) have the highest genotoxicity and contain higher concentrations of extractable organic matter. In addition, associations between chemical characteristics and PM carcinogenicity tend to be stronger for the smaller PM-size fractions. - DNA damage in H. aspersa exposed to atmospheric particulate in Metropolitan Area of Porto Alegre demonstrated association with PAHs in the fine filter (PM{sub <2.5}).

  20. Decreasing flood risk perception in Porto Alegre – Brazil and its influence on water resource management decisions

    Directory of Open Access Journals (Sweden)

    D. G. Allasia

    2015-06-01

    Full Text Available Porto Alegre is the capital and largest city in the Brazilian state of Rio Grande do Sul in Southern Brazil with approximately 1.5 million inhabitants. The city lies on the eastern bank of the Guaiba Lake, formed by the convergence of five rivers and leading to the Lagoa dos Patos, a giant freshwater lagoon navigable by even the largest of ships. This river junction has become an important alluvial port as well as a chief industrial and commercial centre. However, this strategic location resulted in severe damage because of its exposure to flooding from the river system, affecting the city in the years 1873, 1928, 1936, 1941 and 1967. In order to reduce flood risk, a complex system of levees and pump stations was implemented during 1960s and 1970s. Since its construction, not a single large flood event occurred. However, in recent years, the levees in the downtown region of Porto Alegre were severally criticized by city planners and population. Several projects have been proposed to demolish the Mauá Wall due to the false perception of lack of flood risk. Similar opinions and reactions against flood infrastructure have been observed in other cities in Brazil, such as Itajaí and Blumenau, with disastrous consequences. This paper illustrates how the perception of flood risk in Porto Alegre has changed over recent years as a result of flood infrastructure, and how such changes in perceptions can influence water management decisions.

  1. A Grand Tour de um brasileiro: a importância da Itália nas ideias de Manuel de Araújo Porto-Alegre

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    Letícia Squeff

    Full Text Available Resumo Manuel de Araújo Porto-Alegre (1806-1879 foi um dos mais importantes pensadores do século XIX no Brasil. Este artigo trata da importância que a viagem para a Itália teve na trajetória deste pensador. Os contatos com os clássicos e com o universo das viagens pitorescas marcaram a sua produção como artista. Nos poucos desenhos daquele período que chegaram até nós, percebe-se o gosto pelo pitoresco de um artista sintonizado com a cultura do Grand Tour e com a sensibilidade romântica. Além disso, o aprendizado na Itália familiarizou o brasileiro com valores e métodos em discussão nos meios antiquários e eruditos da época. Graças a isso, Porto-Alegre faria alguns anos depois uma interpretação da história da arte no Brasil inspirada na leitura de autores como Johann J. Winckelmann e Luigi Lanzi. Finalmente, o artigo defende que a passagem pela Itália funcionou, para Porto-Alegre, como uma espécie de atestado simbólico, garantindo- lhe lugar entre os eruditos franceses do Instituto Histórico de Paris, bem como entre os estudiosos do Instituto Histórico Brasileiro. Se fora para a Europa como aspirante a pintor, Porto-Alegre voltou da Itália como um erudito.

  2. ELEMENTOS ANARQUISTAS NO COTIDIANO DE UMA ORGANIZAÇÃO CONTEMPORÂNEA: O CASO DA CASA DA CULTURA DIGITAL DE PORTO ALEGRE

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    Carolina Dalla Chiesa

    2015-06-01

    Full Text Available Neste trabalho, objetivamos evidenciar a presença de elementos anarquistas no cotidiano de uma organização que trabalha com cultura digital na cidade de Porto Alegre. Utilizamos o método etnográfico para aproximação com o universo empírico organizacional buscando a compreensão de significados que permeiam certa realidade cotidiana. Embasamos nossas reflexões, principalmente, no pensador anarquista, Proudhon e em alguns desdobramentos das teorizações do autor anarquista na área da Administração a exemplo da noção de autogestão. Para tanto, buscamos elementos passíveis de serem atrelados à doutrina anarquista, descrevendo a organização a partir de discursos e práticas que estão colocados na rejeição à hierarquia, à autoridade, na proeminência da pluralidade, na horizontalidade, na espontaneidade nas relações, bem como na crítica à ideia de ‘propriedade’, também através da expressão hacker da cultura digital tomada a partir do movimento do software livre, sobre o qual fazemos um pequeno resgate histórico com vistas a argumentar a relação entre anarquia e hackerativismo. Buscamos, com isso, contribuir para a aproximação da área com formas organizacionais não convencionais que revelam um modo de organizar informado por pressupostos afastados do mainstream administrativo

  3. A natação em piscinas nos clubes da cidade de Porto Alegre (décadas de 1930 e 1940)

    OpenAIRE

    Assmann, Alice Beatriz; Silva, Carolina Fernandes da; Mazo, Janice Zarpellon

    2013-01-01

    Este estudo objetiva descrever como se sucedeu a prática da natação em piscinas nos clubes da cidade de Porto Alegre nas décadas de 1930 e 1940. As fontes consultadas evidenciaram que a natação era praticada primeiramente em rios e lagos. O marco da prática institucionalizada da natação, não apenas em Porto Alegre, mas no Brasil, foi a construção da primeira piscina do país em 1885 no Lago Guaíba, por iniciativa da atual SOGIPA. Somente, na década de 1940 foram construídas piscinas em clubes ...

  4. Profile of newborns with gastroschisis diagnosis in a public hospital at Porto Alegre(RS

    Directory of Open Access Journals (Sweden)

    Greice Kelli Coelho de Souza

    2017-04-01

    Full Text Available Objective: To know the profile of newborn diagnosed with gastroschisis and treated at a public hospital at Porto Alegre, southern Brazil. Method: A cross-sectional, descriptive, quantitative study was conducted to retrospectively analyze 54 medical records of neonates diagnosed with gastroschisis treated at the study hospital between January 2006 and January 2016. The analysis included all medical records of infants diagnosed with gastroschisis and born in the institution studied, as well as those who were transferred from other health institutions in the period examined. Medical records were searched through electronic consultation to the institution's Epidemiology Service, using the International Code of Diseases (ICD 10 Q 793. Later, the files were accessed through the Medical Records and Statistics Service. Information was collected using a form containing the study variables. The data analysis was performed using SPSS software, version 21.0. The study complied with the ethical aspects of human research legislation. Results: The prevalence of gastroschisis was 0.11%, totaling 54 cases identified. Mean maternal age was 20.2 years; sex distribution was equal among newborns with the malformation; and 72.5% of cases had primary abdominal closure. Conclusion: The results for related causes and treatment, such as maternal age, drug use, and type of abdominal closure, were similar to findings from other studies on gastroschisis. Keywords: Congenital anomalies; gastroschisis; nursing care; neonatal nursing.

  5. Circulações atmosféricas clássicas e não-clássicas na região metropolitana de Porto Alegre/RS

    OpenAIRE

    Flávio Wiegand

    2000-01-01

    O Regional Atmospheric Modeling System (RAMS), versão 3b, foi utilizado para simular o escoamento na Região Metropolitana de Porto Alegre (RMPA) para explicar a influência de circulações clássicas e não clássicas devido as proximidades do oceano e da Lagoa dos Patos, e da ilha de calor formada pelas cidades. O RAMS foi utilizado em um domínio tridimensional com duas grades sendo utilizadas, a grade mais grossa com resolução horizontal de 8 Km, e a grade mais fina com resolução horizontal de 2...

  6. The Porto Alegre Early Life Nutrition and Health Study.

    Science.gov (United States)

    Chaffee, Benjamin Wilk; Vítolo, Márcia Regina; Feldens, Carlos Alberto

    2014-12-01

    Early childhood caries is a persistent worldwide problem. The etiologic contribution of feeding practices has been less frequently investigated in prospective studies of young children. The Porto Alegre Early Life Nutrition and Health Study has followed a birth cohort of 715 mother-child pairs, recruited from municipal health centers, originally involved in a cluster-randomized controlled trial of healthcare worker training. The birth cohort links prospectively collected socio-demographic, infant feeding, and general and oral health information. To date, oral health data, including caries status and oral health-related quality of life, have been collected for 458 children at the age of 2-3 years. Studies are underway to investigate possible determinants and consequences of oral health among these children.

  7. The Porto Alegre Early Life Nutrition and Health Study

    Directory of Open Access Journals (Sweden)

    Benjamin Wilk Chaffee

    2014-12-01

    Full Text Available Early childhood caries is a persistent worldwide problem. The etiologic contribution of feeding practices has been less frequently investigated in prospective studies of young children. The Porto Alegre Early Life Nutrition and Health Study has followed a birth cohort of 715 mother-child pairs, recruited from municipal health centers, originally involved in a cluster-randomized controlled trial of healthcare worker training. The birth cohort links prospectively collected socio-demographic, infant feeding, and general and oral health information. To date, oral health data, including caries status and oral health-related quality of life, have been collected for 458 children at the age of 2-3 years. Studies are underway to investigate possible determinants and consequences of oral health among these children.

  8. GOVERNO ELETRÔNICO E TRANSPARÊNCIA: Comparativo Entre as Prefeituras Municipais de Curitiba, Belo Horizonte, Salvador e Porto Alegre

    Directory of Open Access Journals (Sweden)

    Christian Luiz Da Silva

    2016-08-01

    Full Text Available The aim of this paper was to comparatively evaluate the stages of transparency and availability of information from the institutional web portals of Curitiba, Belo Horizonte, Salvador and Porto Alegre. The research methodology is exploratory and applied, with comparative case studies from the application of a model for evaluating the stages of transparency and availability of information and built using composite criteria in different documents on the subject. After the evaluation, we compared the results between the portals of the city halls chosen to find out their level of e-government. When compared, the portal of Porto Alegre has characteristics more present in the three early stages, but all municipalities are still poorly developed in the two stages of integration (horizontal and vertical; without borders.

  9. Revista do Globo: as mulheres porto-alegrenses nas práticas equestres Revista do Globo Magazine: Porto Alegre's women in equestrian practices

    Directory of Open Access Journals (Sweden)

    Ester Liberato Pereira

    2011-06-01

    Full Text Available O turfe e o hipismo são assuntos veiculados pela Revista do Globo, editada em Porto Alegre, capital do estado do Rio Grande do Sul, de 1929 até 1967. O objetivo deste estudo histórico foi identificar que representações das mulheres nas práticas equestres em Porto Alegre foram produzidas pela Revista do Globo no período de sua publicação. Realizou-se uma análise de conteúdo das reportagens da revista acerca destas práticas. As reportagens sugerem duas imagens sobre as mulheres no contexto das práticas equestres: no turfe, a presença feminina é limitada à assistência, associada à elegância, à fragilidade; no hipismo, as mulheres competem com igualdade com os homens, alcançando vitórias. Este olhar remete à análise do contexto sociocultural e político-econômico porto-alegrense que sustentou tais práticas equestres, cada qual reservando à mulher distintas possibilidades de atuação. Tais representações construídas pela revista podem resultar das distintas origens históricas e étnico-culturais do turfe e do hipismo.Turf and show jumping are topics diffused by Revista do Globo magazine, edited in Porto Alegre, Rio Grande do Sul's capital state, from 1929 until 1967. The aim of this study was to identify which women's representations in equestrian practices in Porto Alegre were produced by Revista do Globo magazine in its publication period. A content analysis of the magazine´s reports about these practices was carried out. The reports suggest two images about women in equestrian practices context: in turf, feminine presence limited to assistance and to elegance and frailty. In show jumping, women, competing with equality with men, reaching victories. This magazine's look remits to social cultural and political economical Porto Alegre´s context analysis which sustained both equestrian practices, each one reserving different possibilities of actuation to the woman. These representations constructed for women by the

  10. Complex Adaptive System of Systems (CASoS) Engineering Applications. Version 1.0.

    Energy Technology Data Exchange (ETDEWEB)

    Linebarger, John Michael; Maffitt, S. Louise (New Mexico Institute of Mining and Technology, Albuquerque, NM); Glass, Robert John, Jr.; Beyeler, Walter Eugene; Brown, Theresa Jean; Ames, Arlo Leroy

    2011-10-01

    Complex Adaptive Systems of Systems, or CASoS, are vastly complex eco-socio-economic-technical systems which we must understand to design a secure future for the nation and the world. Perturbations/disruptions in CASoS have the potential for far-reaching effects due to highly-saturated interdependencies and allied vulnerabilities to cascades in associated systems. The Phoenix initiative approaches this high-impact problem space as engineers, devising interventions (problem solutions) that influence CASoS to achieve specific aspirations. CASoS embody the world's biggest problems and greatest opportunities: applications to real world problems are the driving force of our effort. We are developing engineering theory and practice together to create a discipline that is grounded in reality, extends our understanding of how CASoS behave, and allows us to better control those behaviors. Through application to real-world problems, Phoenix is evolving CASoS Engineering principles while growing a community of practice and the CASoS engineers to populate it.

  11. Phoenix : Complex Adaptive System of Systems (CASoS) engineering version 1.0.

    Energy Technology Data Exchange (ETDEWEB)

    Moore, Thomas W.; Quach, Tu-Thach; Detry, Richard Joseph; Conrad, Stephen Hamilton; Kelic, Andjelka; Starks, Shirley J.; Beyeler, Walter Eugene; Brodsky, Nancy S.; Verzi, Stephen J.; Brown, Theresa Jean; Glass, Robert John, Jr.; Sunderland, Daniel J.; Mitchell, Michael David; Ames, Arlo Leroy; Maffitt, S. Louise; Finley, Patrick D.; Russell, Eric Dean; Zagonel, Aldo A.; Reedy, Geoffrey E.; Mitchell, Roger A.; Corbet, Thomas Frank, Jr.; Linebarger, John Michael

    2011-08-01

    Complex Adaptive Systems of Systems, or CASoS, are vastly complex ecological, sociological, economic and/or technical systems which we must understand to design a secure future for the nation and the world. Perturbations/disruptions in CASoS have the potential for far-reaching effects due to pervasive interdependencies and attendant vulnerabilities to cascades in associated systems. Phoenix was initiated to address this high-impact problem space as engineers. Our overarching goals are maximizing security, maximizing health, and minimizing risk. We design interventions, or problem solutions, that influence CASoS to achieve specific aspirations. Through application to real-world problems, Phoenix is evolving the principles and discipline of CASoS Engineering while growing a community of practice and the CASoS engineers to populate it. Both grounded in reality and working to extend our understanding and control of that reality, Phoenix is at the same time a solution within a CASoS and a CASoS itself.

  12. Avaliação do conhecimento sobre criptosporidiose em uma amostra de médicos de Porto Alegre, Rio Grande do Sul

    Directory of Open Access Journals (Sweden)

    Wiebbelling Adilia M.P.

    2002-01-01

    Full Text Available Introdução: A criptosporidiose, parasitose intestinal causada pelo protozoário Cryptosporidium parvum, foi descrita pela primeira vez em 1976. Desde então já houve relatos em diversos países, inclusive no Brasil. Usualmente manifesta-se com episódio agudo de diarréia aquosa prolongada, dor abdominal, náuseas e vômitos, afetando imunocomprometidos, crianças em creches e aqueles que entram em contato com água contaminada. O diagnóstico pode ser realizado com um exame parasitológico de fezes através de coloração específica, desde que seja solicitada a pesquisa do protozoário. Objetivo: Testar o grau de conhecimento sobre a doença em uma amostra de médicos de Porto Alegre (RS. Material e métodos: Contataram-se 92 médicos de um total de 411 vinculados a dois hospitais universitários de Porto Alegre, 173 da Irmandade Santa Casa de Misericórdia de Porto Alegre (ISCMPA e 238 do Hospital São Lucas da Pontifícia Universidade Católica do Rio Grande do Sul (HSLPUC/RS, no período de julho de 1999 a agosto de 2000. A amostra abrangeu 91 especialistas: 41 da medicina interna, 11 da gastroenterologia, seis das doenças infecto-parasitárias, 18 da pediatria, oito da medicina comunitária e sete da ginecologia e obstetrícia. Os médicos foram selecionados randomicamente, e a amostra, estratificada de acordo com a quantidade de médicos por especialidade, visto que este número era significativamente diferente. Como instrumento utilizou-se um questionário (Anexo com questões de escolha simples e múltipla, aplicado como entrevista por um dos autores (ESB, de acordo com normatizações estabelecidas. Os dados coletados foram analisados estatisticamente através do Microsoft Excel®97. Resultados: O grupo de risco mais lembrado foi o de imunocomprometidos (88/91. No entanto apenas 33/91 consideraram grupo de risco crianças em creches. O sintoma mais referido foi diarréia aquosa prolongada (70/91, seguida por dor abdominal (59/91, n

  13. Radioprotection in nuclear medicine department of 'Porto Alegre Clinical Hospital'

    International Nuclear Information System (INIS)

    Dias, T.M.; Pinto, A.L.; Bacelar, A.L.; Dytz, A.S.; Bernasiuk, M.E.; Baptista, I.S.

    1996-01-01

    The use of ionizing radiation in medicine allows great benefits. Nuclear Medicine uses ionizing radiation for medical diagnostic, such as: tumor, cancer, and dysfunctions location. However the use of ionizing radiation must be controlled in order to avoid likely biological effects in human beings. In order to extremely minimize that these effects appear, the Medical Physics Department of the Porto Alegre Clinical Hospital has implemented some procedures to assure that handling and use of radioactive material are in a safe way. This preoccupation is considered in all the places of nuclear medicine sector since the moment when the radioactive material is brought into including its manipulation and retirement, the exam process being accompanied. (authors). 4 refs

  14. Positivistas e republicanos: os professores da Escola de Engenharia de Porto Alegre entre a atividade política e a administração pública (1896-1930 Positivists and Republicans: the professors of the School of Engineering in Porto Alegre between political activity and public administration (1896-1930

    Directory of Open Access Journals (Sweden)

    Flavio M. Heinz

    2009-12-01

    Full Text Available A história da administração pública no sul do Brasil durante a Primeira República põe em evidência uma instituição de formação superior, a Escola de Engenharia de Porto Alegre, que, fundada em 1896, forneceu parte significativa dos quadros técnicos das secretarias e agências do estado nas décadas seguintes, notadamente da Secretaria dos Negócios de Obras Públicas (SOP. Neste artigo (1 faremos uma breve exposição do cenário político-institucional no sul do Brasil na transição do século XIX para o XX; (2 apresentaremos as linhas gerais do processo de organização da Escola de Engenharia de Porto Alegre; e (3 discutiremos alguns aspectos do percurso profissional, administrativo e político de seu grupo original de docentes e de seus primeiros diplomados.The history of public administration in Southern Brazil during the so-called "First Republic" includes an institution of higher education, the School of Engineering in Porto Alegre, that was founded in 1896 and provided a major part of the cadre of technicians of state departments and agencies in the following decades, particularly of the state's Department of Public Works. In this paper the author (1 briefly discusses the political-institutional scenario in Southern Brazil during the transition from the 19th to the 20th century, then (2 sketches the process of organization of the School of Engineering in Porto Alegre, and finally (3 presents some aspects of the professional, administrative and political career of the School's original group of professors and its first graduates.

  15. Complex Adaptive Systems of Systems (CASoS) engineering and foundations for global design.

    Energy Technology Data Exchange (ETDEWEB)

    Brodsky, Nancy S.; Finley, Patrick D.; Beyeler, Walter Eugene; Brown, Theresa Jean; Linebarger, John Michael; Moore, Thomas W.; Glass, Robert John, Jr.; Maffitt, S. Louise; Mitchell, Michael David; Ames, Arlo Leroy

    2012-01-01

    Complex Adaptive Systems of Systems, or CASoS, are vastly complex ecological, sociological, economic and/or technical systems which must be recognized and reckoned with to design a secure future for the nation and the world. Design within CASoS requires the fostering of a new discipline, CASoS Engineering, and the building of capability to support it. Towards this primary objective, we created the Phoenix Pilot as a crucible from which systemization of the new discipline could emerge. Using a wide range of applications, Phoenix has begun building both theoretical foundations and capability for: the integration of Applications to continuously build common understanding and capability; a Framework for defining problems, designing and testing solutions, and actualizing these solutions within the CASoS of interest; and an engineering Environment required for 'the doing' of CASoS Engineering. In a secondary objective, we applied CASoS Engineering principles to begin to build a foundation for design in context of Global CASoS

  16. Estudo exploratório da utilização de saw palmetto no tratamento da hiperplasia benigna da próstata por urologistas de Porto Alegre

    Directory of Open Access Journals (Sweden)

    Gabriela Ferreira

    Full Text Available O objetivo deste trabalho foi avaliar a utilização de fitoterápicos a base de saw palmetto na terapia sintomática da hiperplasia benigna da próstata (HBP por médicos urologistas da cidade de Porto Alegre. Consistiu em um estudo transversal, exploratório, por meio de entrevista semi-estruturada aplicada a urologistas de Porto Alegre. A amostra foi obtida utilizando catálogo do plano de saúde UNIMED- Porto Alegre. A randomização foi realizada através de sistemática aleatória, sendo sorteados trinta e cinco médicos, dos quais 21 foram selecionados para realização da pesquisa através de questionário. Todos os urologistas entrevistados avaliam e tratam pacientes com hiperplasia benigna da próstata. O saw palmetto não foi citado como terapia medicamentosa de 1ª ou 2ª escolhas no tratamento da HBP. O grupo farmacológico mais freqüentemente utilizado para o tratamento da HBP foi ∝-bloqueadores. Mais da metade dos médicos entrevistados relata ter conhecimento sobre a utilização do saw palmetto, principalmente através de artigos científicos. Os resultados indicam que o saw palmetto não é prescrito pelos urologistas em Porto Alegre, todavia a maior parte destes profissionais tem conhecimento sobre sua utilização.

  17. Bem-estar docente: um estudo em escolas públicas de Porto Alegre

    OpenAIRE

    Zacharias, Jamile

    2012-01-01

    A presente dissertação, aprovada pelo Comitê de Ética em Pesquisa (CEP) da PUCRS, sob registro CEP 11/05397, teve como objetivo analisar os níveis de autoimagem/autoestima, autorrealização e mal/bem-estar, e identificar e analisar os indicadores de bem-estar apresentados por docentes de escolas estaduais de Porto Alegre (RS), bem como propor elementos que possam contribuir para a diminuição do mal-estar e a promoção do bem-estar docente. Para tanto, foi utilizada uma abordagem metodológica qu...

  18. Retrospective study of penetrating keratoplasty at the Santa Casa of Porto Alegre

    OpenAIRE

    Fabris, Caroline; Corrêa, Zélia Maria S.; Marcon, Alexandre S.; Castro, Terla Nunes de; Marcon, Ítalo Mundialino; Pawlowski, Cristiane

    2001-01-01

    Objetivos: Traçar o perfil clínico e social dos pacientes submetidos a transplante de córnea e avaliar as principais indicações desses transplantes, tempo de espera para doação e os índices de sucesso, rejeição e falência dos transplantes penetrantes de córnea. Métodos: Foram analisados retrospectivamente os prontuários de 87 pacientes submetidos a transplante penetrante de córnea no Serviço de Oftalmologia da Santa Casa de Porto Alegre entre janeiro de 1990 e dezembro de 1998, totalizando 91...

  19. A cidade e a Copa do Mundo: projetos e transformações urbanas em Porto Alegre - Brasil

    Directory of Open Access Journals (Sweden)

    Mario Leal-Lahorgue

    2013-05-01

    Full Text Available A cidade de Porto Alegre será uma das sedes dos jogos da Copa do Mundo FIFA 2014 no Brasil. Por causa disso, estão previstas várias obras de adequação da infraestrutura urbana para que a cidade esteja preparada para o momento dos jogos. Este texto apresenta quais são as obras acordadas entre os órgãos públicos brasileiros e a FIFA, sua localização no território da cidade e quais os impactos previstos no espaço urbano. Também contextualiza brevemente a forma como se tem produzido o espaço na cidade nas últimas décadas, com o intuito de demonstrar que algumas formas que pareciam superadas reaparecem no momento atual. Por fim, discute as conseqüências destas transformações para a cidade como um todo e seus cidadãos, questionando o tipo de legado que Porto Alegre pode ter com a Copa do Mundo.

  20. Between Care and Order: Street-Level Workers’ Discretion and Drug Policies in Amsterdam (the Netherlands) and Porto Alegre (Brazil)

    NARCIS (Netherlands)

    R. Quadros Rigoni (Rafaela)

    2015-01-01

    markdownabstract__Abstract__ This comparative study analyses the implementation of policies on so-called ‘problem drugs’ (crack cocaine and heroin) for the cities of Amsterdam (in the Netherlands) and Porto Alegre (in Brazil). Using a variant on the street level bureaucracy approach, the study

  1. Environmental and morphological changes around the Maritime Maya site Vista Alegre.

    Science.gov (United States)

    Jaijel, Roy; Goodman, Beverly; Glover, Jeffrey; Beddows, Patricia; Carter, Alice; Smith, Derek; Rissolo, Dominique; Ben Avraham, Zvi

    2016-04-01

    The untold story of the Maritime Maya from the ancient port site Vista Alegre, is being written for the first time using a multidisciplinary effort that aims to reconstruct the environmental and morphological history of the site. Vista Alegre is located on the north-eastern tip of the Yucatan peninsula, on the ancient Maritime Maya trade routes. This strategic point between the Caribbean Sea and the Gulf of Mexico, offers an ideal setting for this kind of research, which will add to the general Maritime Maya history. The multidisciplinary effort is part of a larger project called "Costa Escodida". The project's main goals are to learn how the ancient inhabitants adapted to the environment, and to understand how this coastal site was integrated into broader maritime trade routes. The portion of the research presented here concentrates on the sites geomorphology and climate during the past 2-3000 years through the multiproxy analysis of marine sediment core and surface samples combined with archaeological data. This study aids our understanding of the site's possible functions, the environmental challenges the local inhabits contended with, and the identification of ancient harboring locations. The site was inhabited from the 9th century B.C until the mid 16th century A.D., with an apparent two century abandonment phase from the mid 7th to 9th century A.D. According to the results, five depositional phases can be recognized, and the related shoreline reconstruction shows a general trend of a flooded terrestrial landscape. This 'flooding' relates well to relative sea-level curves published in the region. Continued analysis of results from the research, and future research activities, may make it possible to recognize hurricane proxies in the sediment, locate underwater manmade seafaring artifacts and facilities, determine the range of economic opportunities for past inhabitants and quantify the availability of potable water sources.

  2. UTILIZAÇÃO DE GEOPROCESSAMENTO PARA ANÁLISE DA ACESSIBILIDADE A EQUIPAMENTOS PÚBLICOS DE ENSINO FUNDAMENTAL EM ÁREAS DE EXPANSÃO URBANA: BACIA HIDROGRÁFICA DO ARROIO DO SALSO – PORTO ALEGRE/RS

    Directory of Open Access Journals (Sweden)

    Pedro Godinho Verran

    2016-09-01

    Full Text Available O trabalho investigatório objetivou realizar a análise da acessibilidade espacial aos equipamentos públicos de ensino fundamental presentes na bacia hidrográfica do arroio do Salso, na zona sul do município de Porto Alegre. Para isso, considerou-se a acessibilidade como uma variável diretamente relacionada à distância a ser percorrida pelo aluno até a escola mais próxima. Foram utilizados dados demográficos do Censo de 2010, informações do Censo Escolar de 2013, dado vetorial da área urbanizada de Porto Alegre, assim como os softwares Google Earth e Arc Gis 10.1. Com base nesses dados, foram gerados um mapa de expansão urbana entre 2002 e 2013 na área de estudo, um mapa dasimétrico com a população na faixa etária do ensino fundamental, assim como um mapa de acessibilidade dessa população às escolas mais próximas. Como conclusão, destaca-se que o ensino fundamental está universalizado na área de estudo, não havendo a necessidade da implantação de novas escolas de ensino fundamental.

  3. Prevalência de CAGE positivo entre estudantes de segundo grau de Porto Alegre, Rio Grande do Sul, Brasil, 1994 Prevalence of CAGE-positive secondary school students in Porto Alegre, Rio Grande do Sul, Brazil, 1994

    Directory of Open Access Journals (Sweden)

    Clarissa C. Trois

    1997-09-01

    Full Text Available Este estudo objetiva descrever a prevalência de positividade do teste CAGE entre estudantes de terceiro ano do segundo grau de Porto Alegre, RS, em 1994. A amostra foi composta por 1.171 estudantes, 598 (51% procedentes de escolas públicas e 573 (49% de escolas particulares. Encontrou-se referência de consumo prévio de bebidas alcoólicas de 93%, com maior prevalência entre os estudantes do sexo masculino (pThis study aims to describe the prevalence of CAGE-positive third-year high school students in Porto Alegre, Rio Grande do Sul, in 1994. The sample consisted of 1,171 students: 598 (51% from public and 573 (49% from private schools. We found reference to previous alcoholic beverage consumption in 93% of the interviewees. The highest prevalence was among male students (p<0.02 and students from private schools (p<0.03. Half of the students reported weekly consumption, usually when going to parties (60% and bars (17%. CAGE positiveness prevalence was 8.3% overall and 11% among males (p<0.02. When variables like gender, age, and socioeconomic status were controlled, there was no statistically significant difference between the kind of school and CAGE status.

  4. Photochemical Pollution Modeling of Ozone at Metropolitan Area of Porto Alegre - RS/Brazil using WRF/Chem

    Science.gov (United States)

    Cuchiara, G. C.; Carvalho, J.

    2013-05-01

    One of the main problems related to air pollution in urban areas is caused by photochemical oxidants, particularly troposphere ozone (O3), which is considered a harmful substance. The O3 precursors (carbon monoxide CO, nitrogen oxides NOx and hydrocarbons HCs) are predominantly of anthropogenic origin in these areas, and vehicles are the main emission sources. Due to the increased urbanization and industrial development in recent decades, air pollutant emissions have increased likewise, mainly by mobile sources in the highly urbanized and developed areas, such as the Metropolitan Area of Porto Alegre-RS (MAPA). According to legal regulations implemented in Brazil in 2005, which aimed at increasing the fraction of biofuels in the national energy matrix, 2% biodiesel were supposed to be added to the fuel mixture within three years, and up to 5% after eight years of implementation of these regulations. Our work performs an analysis of surface concentrations for O3, NOx, CO, and HCs through numerical simulations with WRF/Chem (Weather Research and Forecasting model with Chemistry). The model is validated against observational data obtained from the local urban air quality network for the period from January 5 to 9, 2009 (96 hours). One part of the study focused on the comparison of simulated meteorological variables, to observational data from two stations in MAPA. The results showed that the model simulates well the diurnal evolution of pressure and temperature at the surface, but is much less accurate for wind speed. Another part included the evaluation of model results of WRF/Chem for O3 versus observed data at air quality stations Esteio and Porto Alegre. Comparisons between simulated and observed O3 revealed that the model simulates well the evolution of the observed values, but on many occasions the model did not reproduce well the maximum and minimum concentrations. Finally, a preliminary quantitative sensitivity study on the impact of biofuel on the

  5. Monte Carlo codes and Monte Carlo simulator program

    International Nuclear Information System (INIS)

    Higuchi, Kenji; Asai, Kiyoshi; Suganuma, Masayuki.

    1990-03-01

    Four typical Monte Carlo codes KENO-IV, MORSE, MCNP and VIM have been vectorized on VP-100 at Computing Center, JAERI. The problems in vector processing of Monte Carlo codes on vector processors have become clear through the work. As the result, it is recognized that these are difficulties to obtain good performance in vector processing of Monte Carlo codes. A Monte Carlo computing machine, which processes the Monte Carlo codes with high performances is being developed at our Computing Center since 1987. The concept of Monte Carlo computing machine and its performance have been investigated and estimated by using a software simulator. In this report the problems in vectorization of Monte Carlo codes, Monte Carlo pipelines proposed to mitigate these difficulties and the results of the performance estimation of the Monte Carlo computing machine by the simulator are described. (author)

  6. Comparison of activity measurements of 131I and 99mTc radionuclides administered in nuclear medicine services of Porto Alegre

    International Nuclear Information System (INIS)

    Alabarse, Frederico Gil.; Santos, Carlos Eduardo Lima dos

    2005-01-01

    A programme for the comparison of activity measurements of radionuclides administered to patients in Nuclear Medicine Services, for the purpose of diagnosis or therapy, is being conducted under the coordination of the Radioprotection and Dosimetry Institute of the Brazilian Nuclear Energy Commission, IRD/CNEN. In the present work, measurements of the activity of samples of 131 I and 99 mTc were conducted in the dose calibrators of the Nuclear Medicine Services of the city of Porto Alegre, in the period from June to September 2004. The results were analysed to evaluate the compliance with the Brazilian regulation and were also compared to data available in the literature for the cities of Rio de Janeiro and Brasilia. The performance of the activity meters in Porto Alegre is shown to be very good, which contributes to the radiological protection of patients submitted to diagnosis or therapy with radiopharmaceuticals. (author)

  7. Consumer Behaviour Towards Organic Food in Porto Alegre: an application of the Theory of Planned Behaviour

    OpenAIRE

    Hoppe, Alexia; Vieira, Luciana Marques; Barcellos, Marcia Dutra de

    2013-01-01

    The aim of this study was to investigate consumers' decision-making process, attitudes and values towards organic food throughout the employment of the Theory of Planned Behaviour, adapting the methodology from a European project. 450 consumers were interviewed at supermarkets and farmers' markets in Porto Alegre, Brazil. Results indicate a high penetration level and very positive attitude towards organic products. Organics are believed to be healthier, tastier, more natural and environmental...

  8. VÍNCULOS COM A ORGANIZAÇÃO E OS ESTILOS DE LIDERANÇA: UMA ANÁLISE NA EQUIPE DE ENFERMAGEM DE INSTITUIÇÕES HOSPITALARES

    OpenAIRE

    Andressa Schaurich dos Santos

    2015-01-01

    Este estudo teve como objetivo analisar a relação entre os vínculos dos trabalhadores com a organização e os estilos de liderança dos gestores na equipe de Enfermagem de Hospitais Públicos e Privados no Rio Grande do Sul (RS). Para tanto, realizou-se um estudo de caso, de natureza descritiva e abordagem quantitativa. A amostra da pesquisa foi composta por 347 enfermeiros, técnicos e auxiliares de enfermagem de um Hospital público e um Hospital privado, localizados na cidade de Porto Alegre/RS...

  9. Monte Carlo and Quasi-Monte Carlo Sampling

    CERN Document Server

    Lemieux, Christiane

    2009-01-01

    Presents essential tools for using quasi-Monte Carlo sampling in practice. This book focuses on issues related to Monte Carlo methods - uniform and non-uniform random number generation, variance reduction techniques. It covers several aspects of quasi-Monte Carlo methods.

  10. Cultivares de batata para sistemas orgânicos de produção Potato cultivars for organic production systems

    Directory of Open Access Journals (Sweden)

    Fabrício Rossi

    2011-09-01

    Full Text Available Informações a respeito de cultivares adaptadas ao sistema de cultivo orgânico são escassas. O objetivo deste estudo foi avaliar, sob sistema de cultivo orgânico, genótipos nacionais e estrangeiros desenvolvidos para o cultivo convencional, quanto ao potencial produtivo, em condições de campo. O experimento foi conduzido em 2008, no Pólo APTA Leste Paulista, em Monte Alegre do Sul-SP. O delineamento experimental foi em blocos ao acaso, com 18 tratamentos e quatro repetições. Cada parcela foi constituída por 80 batatas-semente, dispostas em quatro linhas de 5 m de comprimento, espaçadas de 80 cm, com 25 cm entre tubérculos. Os genótipos avaliados foram Agata, Asterix, Caesar, Cupido, Éden, Melody, Novella e Vivaldi, de origem estrangeira; e Apuã, Aracy, Catucha, IAC Aracy Ruiva, Itararé, Monte Alegre 172, IAC 6090, APTA 16.5, APTA 15.20 e APTA 21.54, nacionais. Foram avaliadas as características de produtividade total e comercial de tubérculos, massa média total e comercial de tubérculos, teor de matéria seca e severidade da pinta-preta (Alternaria solani. Os clones APTA 16.5, APTA 21.54 e IAC 6090, e as cultivares Cupido, Apuã, Itararé e Monte Alegre 172 foram os mais produtivos. 'APTA 21.54' superou os demais em relação a produtividade comercial (18,07 t ha-1, sendo que 'APTA 16.5', 'Cupido', 'IAC 6090' e 'Itararé' formaram o segundo grupo. As maiores massas médias de tubérculos foram apresentadas pelas cultivares Itararé e Cupido. O clone IAC 6090 e as cultivares Aracy e Aracy Ruiva foram as que apresentaram maiores teores de matéria seca, com valor médio de 22,91%. 'APTA 16.5', 'Apuã', 'Aracy', 'Aracy Ruiva', 'Éden', 'Ibituaçú' e 'Monte Alegre 172' apresentaram alto nível de resistência à pinta-preta. As cultivares Itararé, Apuã e Cupido são adaptadas ao cultivo orgânico, e os clones avançados APTA 16.5, APTA 21.54 e IAC 6090 apresentam potencial de cultivo no sistema orgânico.Information regarding

  11. Prevalence study of dermatoses referred to the phototherapy unit at the Dermatology Service of the Clinics Hospital of Porto Alegre, RS, Brazil Estudo de prevalência das dermatoses encaminhadas ao setor de fototerapia do ambulatório de dermatologia do Hospital de Clínicas de Porto Alegre, RS, Brasil

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    Carolina Casara

    2013-04-01

    Full Text Available BACKGROUND: Phototherapy consists of exposure to ultraviolet radiation for therapeutic reasons. Radiation is already used in dermatological practice, and many studies have already proved the beneficial effect of UV light treatment for chronic inflammatory or lymphoproliferative skin diseases. The Dermatology Service of the Clinics Hospital of Porto Alegre (Hospital de Clínicas de Porto Alegre has been using phototherapy for a long time, and no official data have been described so far. OBJECTIVES: To study the prevalence of dermatoses referred to the phototherapy unit at the Clinics Hospital of Porto Alegre and describe the total number of patients who have already been referred to this sector and their phototype. METHODS: This is a descriptive cross-sectional study. Data were collected through a review of the phototherapy patients' records (secondary data, which are available on a database of the Dermatology Service of the Clinics Hospital of Porto Alegre, from August 1997 to July 2011. RESULTS: A total of 653 records were analyzed. Phototype 3 was the most prevalent (n=313. Distribution of the prevalence of dermatoses referred to the phototherapy unit was as follows: vitiligo (279, psoriasis (255, cutaneous T-cell lymphoma/mycosis fungoides (29, graftversus-host disease (15, scleroderma (11, atopic dermatitis (10, alopecia areata (6, parapsoriasis (5, eczema (4, granuloma annulare (4, and others (35. As vitiligo and psoriasis were the two most prevalent dermatoses, they were analyzed separately, with no statistical difference in prevalence between them (P=0,177. CONCLUSIONS: Our findings are in accordance with the literature, showing that although phototherapy is still mostly indicated to treat psoriasis, it has been used to treat other dermatoses, since the results are promising. FUNDAMENTOS: Fototerapia é exposição à radiação ultravioleta para uso terapêutico. O uso dessas radiações já é utilizado na prática dermatológica, e

  12. Proyecto Costa Escondida: Interdisciplinary Research at the Ancient Maya Port Site of Vista Alegre, Quintana Roo, Mexico

    Science.gov (United States)

    Glover, J.; Rissolo, D.; Beddows, P. A.; Goodman, B.; Smith, D.

    2013-05-01

    At the northeast tip of the Yucatan Peninsula - where the Caribbean meets the Gulf - lies the ancient Maya port site of Vista Alegre. The inhabitants of this site, much like the people living nearby today, were forced to contend with the challenging coastal environment of Laguna Holbox. The sediment-rich, low gradient of the north coast presents a contrasting landscape compared to the Caribbean coast, where water resources are of much larger magnitude and evident in the extensive systems of cenotes (sinkholes) and underground rivers that supported pre-Columbian sites along this eastern rocky sediment-poor coastline. For past inhabitants the north coast was a mosaic of low-lying, non-arable zones where access to potable water was a challenge for inhabitants well into the 20th century. By bringing together scholars from the fields of archaeology, coastal ecology, geoarchaeology, and hydrogeology, the Proyecto Costa Escondida is focusing on the dynamic relationship between the Maya and their coastal landscape over the past 3000 years. To date we have collected 12 manual push-cores from the shallow waters surrounding Vista Alegre, which have been analyzed at 1 cm resolution using standard methods for Loss on Ignition (LOI), δ18Ocarb and δ13Ccarb of bulk carbonate, granulometry, micropalentology, and AMS radiocarbon dating. In addition to have baseline comparative data, we have conducted near-shore and terrestrial coastal ecological surveys along with the mapping of coastal water salinity and temperatures in the dry and wet seasons. Overall, the chemical proxies, lithology, and paleosalinity model reconstructed to date reveal four onlapping parasequences representing an overall transgression of the coastline with strong seasonality of water chemistry that has been changing under the control of rising sea levels over the past 3000 years. The sedimentation rate and timing of the transition to marine is in reasonable agreement with local sea level curves meaning that the

  13. Picadura de medusa Olindias sambaquiensis: Análisis de 49 casos

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    Juan H Mosovich

    2012-10-01

    Full Text Available La picadura de la medusa o agua viva Olindia sambaquiensis es de ocurrencia frecuente en las playas de la costa de la provincia de Buenos Aires. Se notifican entre quinientas y mil picaduras de medusas por temporada en la localidad balnearia de Monte Hermoso, al sur de la provincia de Buenos Aires. El daño cutáneo que provoca por su elevada acción urticante plantea un serio inconveniente para el desarrollo del turismo. Durante el mes de enero de 1998, en la localidad de Monte Hermoso se reunieron un total de 49 casos que fueron examinados dentro de la hora posterior a la picadura. Veintiocho eran de sexo masculino (57.1%. La edad promedio fue de 16 ± 4.1 (rango 5-80. El 54% presentó lesiones eritemato-edematosas de configuración lineal, el 28% presentó lesiones predominantemente eritematosas y el 18% presentó placas eritemato-edematosas. En el 73% de los casos las lesiones se localizaron en miembros inferiores. Hemos redefinido la lesión cutánea producida por la medusa O. sambaquiensis, su evolución, sus dimensiones y localizaciones más frecuentes. Además, se ha tipificado y cuantificado el dolor que produce, y otros signos y síntomas que acompañan a la picadura en la hora posterior, a las primeras 24 horas y a los 30 días. Describimos las conductas terapéuticas utilizadas en nuestra costa, evaluamos la efectividad de algunas de ellas en el control del dolor y finalmente proponemos un esquema terapéutico para dicha picadura.

  14. Prevalência de depressão e fatores associados em comunidade de baixa renda de Porto Alegre, Rio Grande do Sul Prevalence of depression and associated factors in a low income community of Porto Alegre, Rio Grande do Sul

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    Ricardo Vivian da Cunha

    2012-06-01

    Full Text Available OBJETIVO: Estimar a prevalência e os fatores demográficos e socioeconômicos associados à depressão em adultos e idosos em uma comunidade de baixa renda de Porto Alegre, Rio Grande do Sul. MÉTODOS: Estudo transversal realizado com adultos com >20 anos de idade residentes nos distritos sanitários da Restinga e Extremo Sul, na cidade de Porto Alegre, Rio Grande do Sul, de julho a dezembro de 2009. A variável dependente do estudo foi a depressão, avaliada pela Escala de Depressão Pós-Natal de Edimburgo. As variáveis independentes foram sexo, idade, situação conjugal atual, escolaridade e nível econômico. Empregou-se teste qui-quadrado de Pearson na análise bruta e regressão de Poisson com variância robusta na análise ajustada. RESULTADOS: Dentre os entrevistados, a prevalência de depressão encontrada foi de 16,1% (IC95%: 14,9%; 17,4%. Após análise ajustada, observou-se que a depressão esteve associada ao sexo feminino (RP = 2,38. Além disso, observou-se tendência de maiores ocorrência de depressão conforme o aumento da faixa etária e diminuição dos níveis de escolaridade e renda. CONCLUSÕES: Os valores de depressão encontrados foram semelhantes a outros estudos populacionais. Atenção específica deve ser destinada a mulheres e indivíduos de baixa escolaridade, que apresentaram maiores ocorrências de depressão.OBJECTIVE: To estimate the prevalence and demographic and socioeconomic factors associated with depression in adults and in the elderly in a low income community of Porto Alegre, Rio Grande do Sul. METHODS: Cross-sectional study of adults with > 20 years of age living in the Health Districts of Restinga/Extremo Sul, Porto Alegre, Rio Grande do Sul, between July and December 2009. The dependent variable was depression measured by the Edinburgh Postnatal Depression Scale. Independent variables were sex, age, current marital status, educational level and economic level. The Chi-square test was used for the

  15. Importância da análise cromossômica dos fibroblastos em casos suspeitos de mosaicismo: experiência de um serviço de Genética Clínica Importancia del análisis cromosómico de los fibroblastos en casos sospechosos de mosaicismo: experiencia de un servicio de Genética Clínica Importance of the fibroblast chromosomal analysis in suspected cases of mosaicism: experience of a clinical Genetics service

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    Giorgio Adriano Paskulin

    2011-03-01

    Full Text Available OBJETIVOS: Verificar características clínicas e achados citogenéticos de pacientes com suspeita de mosaicismo submetidos à avaliação cromossômica por meio do cariótipo por bandas GTG de linfócitos e fibroblastos. MÉTODOS: Realizou-se uma análise retrospectiva dos pacientes avaliados no Serviço de Genética Clínica do Complexo Hospitalar Santa Casa de Porto Alegre da Universidade Federal de Ciências da Saúde de Porto Alegre, entre 1975 e 2009, por meio da coleta de dados clínicos e resultados da avaliação citogenética. RESULTADOS: A amostra foi composta de 15 pacientes, seis (40% do sexo masculino, e idades variando de dez dias a 14 anos. Na análise cromossômica do sangue, alterações foram observadas em quatro pacientes (26,7%, incluindo-se um caso de translocação balanceada [t(2;9pat] e três de mosaicismo [um caso, respectivamente, de mos 45,X/46,X,+mar; mos 46,XY,r(12/45,XY,-12/47,XY,r(12,+r(12 e mos 46,XY/47,XY,+9]. Com o objetivo de confirmar ou mesmo identificar um mosaicismo cromossômico, os pacientes foram submetidos posteriormente ao cariótipo de pele. Os principais motivos pelos quais os pacientes com cariótipo do sangue sem mosaicismo apresentaram tal suspeita foram a presença de hemi-hipertrofia (n=5 e de manchas hipocrômicas seguindo as linhas de Blaschko (n=4. Mosaicismo foi confirmado em dois casos e identificado em outros dois (dois casos de mos 46,XX/47,XX,+22. O mos 46,XY/47,XY,+9 não foi verificado no estudo dos fibroblastos. CONCLUSÕES: Os resultados ilustram a variabilidade tecidual característica dos casos de mosaicismo cromossômico, bem como confirmam a importância da avaliação de um segundo tecido para a determinação diagnóstica. Achados clínicos, como assimetria de membros e anomalias pigmentares seguindo as linhas de Blaschko, são fortemente indicativos da presença de mosaicismo.OBJETIVOS: Verificar características clínicas y hallazgos citogenéticos de pacientes con sospecha

  16. Magnetic concentration of iron-titanium ore with vanadium concentrate from campo Alegre de Lourdes - Bahia, Brazil

    International Nuclear Information System (INIS)

    Delgado, O.; Silva, F.T. da; Ogasawara, T.; Soares, G.F.

    1988-01-01

    The feasibility studies of magnetic concentration of the Campo Alegre de Lourdes ore were carried out, trying to obtain a maximum recovery of vanadium. As a consequence of the complex nature of the ore, mainly due to the presence of ilmenite as a exolutions in the interior of hematite/martite particles, it was not possible to separate the hematite-ilmenite eficiently, wich would be necessary for obtaining a high grade vanadium concentrate with low titanium content. (author) [pt

  17. Evaluation of exploitation alternatives of iron - titanium - vanadium ore from Campo Alegre de Lourdes (Bahia-Brazil)

    International Nuclear Information System (INIS)

    Cassa, J.C.S.; Ogasawara, T.; Silva, F.T. da; Cuellar, O.D.

    1987-01-01

    An evaluation of experiences carried out in order to develop an economic process for vanadium, is presented. The attempts which are being developed in the Metallurgical Engineering Program at COPPE/UFRJ, are described, and the other technical and economical possibilities of existing technologies, are analysed. The advantages and disadvantages of integrated steel making process to recover iron, titanium and vanadium contained in the ore from Campo Alegre de Lourdes deposit, in Bahia-Brazil are considered. (Author) [pt

  18. ¿De la alegría a la decepción?

    Directory of Open Access Journals (Sweden)

    Constantino Urcuyo Fournier

    2015-07-01

    Full Text Available La administración Solís Rivera inició gestiones con un apoyo ciudadano sin precedentes. Sin embargo, la complejidad en la composición de la Asamblea Legislativa, luchas internas en su propio partido político, y errores de gestión han marcado una ruta difícil durante el primer año de gobierno. El desgaste político no sólo se ha medido desde la esfera política, en sus relaciones con otras fuerzas políticas y sociales, sino también con la ciudadanía. Encuestas recientes reflejan el deterioro en el apoyo de la ciudadanía a la administración que le dio la alegría de un camino hacia el cambio

  19. Internações por doenças relacionadas ao saneamento ambiental inadequado na rede pública de saúde da região metropolitana de Porto Alegre, Rio Grande do Sul, 2010-2014

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    Mariana Santiago Siqueira

    Full Text Available Resumo OBJETIVO: descrever a ocorrência, as características e os gastos com internações por doenças relacionadas ao saneamento ambiental inadequado (DRSAI financiadas pelo Sistema Único de Saúde (SUS entre residentes na Região Metropolitana de Porto Alegre-RS, no período de 2010 a 2014. MÉTODOS: estudo descritivo com dados do Sistema de Informações Hospitalares do SUS (SIH/SUS. RESULTADOS: das 13.929 internações por DRSAI, 93,7% relacionaram-se às doenças de transmissão feco-oral e 20,4% foram de crianças de 1 a 4 anos de idade (28,1 internações/10 mil hab./ano; a letalidade hospitalar foi de 2,2%, tendo as doenças de transmissão feco-oral como principais causas de óbito; em 2,0% das internações, houve utilização de unidade de terapia intensiva (UTI; o gasto total com as internações foi de cerca de R$6,1 milhões. CONCLUSÃO: as DRSAI permanecem como um importante problema na região metropolitana de Porto Alegre-RS, embora esta apresente bons indicadores de desenvolvimento.

  20. Caso e caos

    CERN Document Server

    Ruelle, David

    1992-01-01

    Caso e caos – Il caso ha la sua ragione. Ma quale? E cos’è in realtà il caso? Da dove viene e come può fare irruzione nella nostra descrizione dell’universo? A tutte queste domande, in una chiara e lucida esposizione, cerca di dare risposta David Ruelle. Curiosando tra i risultati scientifici del XX secolo e soffermandosi anche su fenomeni e problemi estranei alla scienza tradizionale – le lotterie, gli oroscopi, la teoria dei giochi, la genesi della turbolenza – Ruelle ci guida a conoscere il caso avendo la matematica, la fisica e tutte le scienze naturali come compagne. Ancora oggi il modo in cui il caso irrompe nelle nostre vite e nel mondo può essere un mistero, ma grazie ai progressi della scienza, qui raccontati, riusciamo a saperne un poco di più.

  1. Encontro de Haemagogus (Conopostegus leucocelaenus (Diptera: Culicidae, no Município de Porto Alegre, Estado do Rio Grande do Sul Finding of Haemagogus (Conopostegus leucocelaenus (Diptera: Culicidae, in the municipality of Porto Alegre, State of Rio Grande do Sul

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    Almério de Castro Gomes

    2007-08-01

    Full Text Available Em novembro de 2006, foi realizada uma investigação entomológica numa mata nativa do município de Porto Alegre, Estado do Rio Grande do Sul. O resultado foi a captura de várias espécies Culicidae, incluindo o primeiro registro da presença de Haemagogus leucocelaenus na localidade. Esta espécie é considerada vetora do vírus da febre amarela em alguns municípios do Estado, motivando esta comunicação para alertar sobre o potencial da área para circulação do agente etiológico desta doença.In November 2006, an entomological investigation was carried out in a native forest in the municipality of Porto Alegre, State of Rio Grande do Sul. The result was the capture of several Culicidae species, including the first recording of the presence of Haemagogus leucocelaenus in this locality. This species is considered to be a vector for the yellow fever virus in some municipalities of this State, and this was the motivation for the present communication, in order to warn regarding the potential of this area for circulation of the etiological agent for this disease.

  2. Uso de bebidas alcoólicas em postos de gasolina de Porto Alegre: estudo piloto Alcohol use on premises of gas stations of Porto Alegre, Brazil: pilot study

    Directory of Open Access Journals (Sweden)

    Raquel De Boni

    2008-04-01

    Full Text Available INTRODUÇÃO: O uso de álcool é um forte preditor de acidentes de trânsito. Este artigo descreve a factibilidade e dados preliminares de um estudo que avalia a alcoolemia entre jovens que utilizam bebidas alcoólicas em estacionamentos de postos de gasolina de Porto Alegre (RS. MÉTODO: Estudo transversal, com amostra em alvo, estratificada por idade e gênero. Os dados foram coletados através de um questionário autopreenchido, e a alcoolemia foi estimada com uso de bafômetro. RESULTADOS: A taxa de recusa foi de 13,7%, e medida da alcoolemia acima de 0,06% foi encontrada em 35,5% (IC95% 24,3-47,9 da amostra. Aproximadamente 10% destes indivíduos (18% dos homens relatavam intenção de dirigir nas 2 horas subseqüentes à coleta. CONCLUSÃO: É discutida a potencial utilização deste tipo de dado, bem como a necessidade de novos estudos sobre uso de substâncias em motoristas brasileiros.INTRODUCTION: Alcohol use is a strong predictor of traffic accidents. This paper reports feasibility issues and preliminary data on blood alcohol concentration in youths who drink alcohol in gas stations of Porto Alegre, Brazil. METHOD: It used a cross-sectional design with a purposive sample stratified by age and gender. Data were collected through a self-administered questionnaire and blood alcohol concentration was estimated with breath alcohol analyzers. RESULTS: Refusal rate was 13.7% and blood alcohol concentration over 0.06% was found in 35.5% (95%CI 24.3-47.9 of the sample. Almost 10% of the subjects (18% of the males reported they would drive within 2 hours of the interview. CONCLUSION: The potential utilization of such measures is discussed, as well as the need for studies on substance use in young Brazilian drivers.

  3. Hegemonia e polarização: a reconfiguração de forças políticas no município de Porto Alegre (1988 a 2000

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    Dias, Marcia Ribeiro

    2002-01-01

    Full Text Available Durante o período de pouco mais de uma década que o partido dos trabalhadores tem governado o muncípio de Porto Alegre, houve ali transformações estruturais e comportamentais no cenário político. O objetivo do texto é traçar um diagnóstico da evolução do quadro eleitoral e da distribuição de poder político em Porto Alegre, identificando a cristalização de posturas, mas sobretudo a vitalidade da dinâmica política em curso no município

  4. Trabajadores, economía de guerra y huelga general. Porto Alegre, 1942- 1945

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    García Schneider, Paula

    2011-01-01

    Full Text Available Entre los años 1942-1945, los trabajadores porto-alegrenses se encontraban inmersos en una economía que podríamos llamar de guerra. Esa economía tuvo implicancias en su calidad de vida, debido a la carestía, especulación y pérdida progresiva del salario real. Asimismo, si bien desde la implementación del Estado Novo en 1937 el gobierno se proponía domesticar a los trabajadores, en 1942, con la intromisión del Brasil en la Segunda Guerra Mundial para lograr la intensificación de la producción, fue recortada la legislación que protegía a los trabajadores. Se pretende a partir del análisis de la escasez de alimentos y aumento del costo de vida, analizar cómo esto afectaba la vida de los trabajadores porto-alegrenses, y a su vez, cómo los trabajadores en 1945 inician un movimiento huelguista en el marco de la crisis del Estado Novo. From 1942 to 1945, the workers of Porto Alegre were immersed in what could be called a war economy. That economy had consequences in their quality of life, given the scarcity, speculation and progressive loss of the real wages. Also, despite the implementation of the Estado Novo in 1937, an attempt to placate the workers; in 1942, with the involvement of Brazil in the Second World War and with the purpose of intensifying production, the legislation that protected workers was whittled down.Considering the information about food shortages and the increase in the cost of living, the impact on the life of the Porto Alegre worker is analyzed, as well as, the manner in which in 1945, the workers started a strike movement in the context of the crisis of the Estado Novo.

  5. Escafocefalia en aborígenes de la República Argentina: dos casos de estudio.

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    Drube, Hilton

    2005-01-01

    Full Text Available La escafocefalia constituye la manifestación más frecuente en el grupo de anomalías óseas denominadas craneostenosis, condición patológica que involucra el cierre prematuro de las suturas en el cráneo. La escafocefalia consiste en la obliteración temprana de la sutura sagital, limitando por lo tanto el desarrollo en dirección transversa del cráneo. El presente trabajo da cuenta de la manifestación de esta patología congénita en dos casos correspondientes a individuos de poblaciones aborígenes prehispánicas de Argentina. El primero de ellos procede de un sitio arqueológico del Período Tardío localizado en la cuenca del río Dulce en la provincia de Santiago del Estero. Caracteriza el sitio la presencia de numerosos montículos y alfarería del complejo Sunchituyoj. Los restos corresponden a un individuo adulto con atributos morfológicos masculinos. El calvarium se caracteriza por su extrema longitud y estrechez, constituyendo un típico caso de escafocefalia al no observarse rastro alguno de la sutura sagital, la que presenta fusión completa interna y externamente. El segundo caso, un individuo juvenil de sexo indeterminado, pertenece también a la provincia de Santiago del Estero, si bien su procedencia corresponde en este caso a la cuenca del río Salado. De la misma manera que el caso anterior, el cráneo presenta una longitud marcada en sentido ánteroposterior y un índice cefálico inferior a 70. La sutura sagital presenta fusión completa endocranealmente, en tanto que la sinostosis ectocraneal es parcial al apreciarse rastros de la sutura en la región bregmática.

  6. Seroepidemiology of Leishmania infantum in dogs in the city of Porto Alegre, Rio Grande do Sul, Brazil

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    Mariana Caetano Teixeira

    2016-12-01

    Full Text Available Leishmaniosis are zoonoses that present several clinical manifestations in humans and have dogs as their main reservoir in the urban environment. Visceral leishmaniasis (VL is the most severe form of the parasitosis and has been increasing in Brazil, despite the actions of public health agencies. Until 2002, the State of Rio Grande do Sul (RS was considered free of human and canine leishmaniasis. The first human case of cutaneous leishmaniasis in RS was recorded in 2003. In 2009, the first autochthonous cases of human VL and canine visceral leishmaniasis (CVL were confirmed in São Borja, RS, and the occurrence of the insect vector was recorded for the first time in the state. In 2010, the first confirmed case of CVL was reported and seropositive dogs were identified in the city of Porto Alegre, RS. Given the importance of this zoonosis and the difficulties of a reliable diagnosis in dogs, this study aimed to identify epidemiological aspects of CVL in dogs in an area of Porto Alegre where cases of the disease have been reported. A total of 300 blood samples were collected from dogs in this area, which were then tested by the methods of RT-DPP® and ELISA for diagnosis of Leishmania infantum. An epidemiological questionnaire was completed by dog owners, containing aspects related to care of the animals, characteristics of their environment, and their living conditions. We observed that 83% (250/300 of the studied dogs were of mixed breed, 58% (175/300 were female, 78% (238/300 slept outdoors, and 61% (183/300 shared their living quarters with other species. Clinically, we observed that 90% (270/300 of the animals were infested by ectoparasites, 70% (210/300 had dermatopathies, 24% (72/300 presented weight loss and anorexia, and 22% (65/300 had ocular disorders. The results of the two serological tests were 100% concordant for the three seropositive samples (1%, and the remaining 297 (99% were negative for both tests. We conclude that despite the

  7. SOIL VARIABILITY IN DIFFERENT LANDSCAPE POSITIONS IN THE PORTO ALEGRE BOTANICAL GARDEN, SOUTHERN BRAZIL

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    Luís Fernando da Silva

    2015-10-01

    Full Text Available ABSTRACTKnowledge of soil characteristics in areas where activities related to the environment are developed, such as Porto Alegre Botanical Garden (JB-PoA, is a fundamental condition for the sustainable use of this natural resource. The objective of this study was to characterize, classify and evaluate some issues about soil formation in Porto Alegre Botanical Garden, as well as relate their distribution on the landscape according to environmental characteristics. For the morphological description and collecting samples four profiles were selected (P1 to P4, located in the summit-shoulder transition, backslope, footslope and toeslope, respectively. Granulometric distribution of the P1 and P3 profiles indicated sharp textural gradient, with presence of textural and "plânico" B horizons, respectively, according to Brazilian System of Soil Classification. There is predominance of low values of pH, and low base saturation, with exception of P4, indicating probable deposition of solution material at this area. The Fed/Fes relationship was greater in the profile located in the summit-shoulder transition (P1, indicating higher weathering. The Feo/Fed relationship increased in P3 and P4 profiles, indicating greater participation of iron oxides of low crystallinity in reducing environment. The occurrence of some pedogenic processes may be inferred, like lessivage in P1 (Ultic Hapludalf, due to clay skins and higher values of fine clay:total clay relationship in subsurface; ferrolysis and gleization, by low pH value and high Feo/Fed relationship in E and EB horizons of P3 (Oxyaquic Hapludalf, being the last also present in P4 (Humaqueptic Endoaquent, indicating gleization occurrence.

  8. Francisco Javier Alegre (1729-1788: una aproximación a su obra teológica

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    Alva Rodríguez, Inmaculada

    2011-06-01

    Full Text Available Little is known about Institutionum theologicarum libri XVIII by Francis Xavier Alegre. This work represents an attempt to renew decadent scholasticism, with the new methods of positive and historical theology. What makes this text original and interesting is its dialogue with the Enlightenment philosophers. The description of the content and, above all, the study of the sources he relied on, shows a man of wide reading and points to an ambience of cultural renewal that permeated the cultural life of the Viceroyalty of New Spain. It also reflects the intellectual environment of the Jesuits who settled in Italy after the expulsion and suppression of the Society of Jesus.

    Los Institutionum theologicarum libri XVIII de Francisco Javier Alegre son poco conocidos. Esta obra supone un intento de renovar la decadente escolástica, con los nuevos métodos de la teología positiva e histórica. Su originalidad e interés radica en el diálogo que mantiene con los filósofos ilustrados. La descripción de su contenido y, sobre todo, el estudio de las fuentes que utiliza, muestran un hombre de amplias y variadas lecturas y remiten al ambiente de renovación cultural que impregnó la vida cultural del Virreinato de Nueva España. Refleja también el entorno intelectual de los jesuitas asentados en Italia tras la expulsión y extinción de la Compañía de Jesús.

  9. Politics representation scenarios and elec toral behavior - study case: Porto Alegre's municipal elections in 2004

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    Fernanda Barth

    2008-06-01

    Full Text Available The purpose of this article is to reflect about the influence of the political surveys in the definition of the electoral behavior analyzing the scenarios of political representation, the mechanism of public opinion formation and the specificities of the behavior of the gaucho electorate. We believe the publicity built upon the surveys had a great impact in the Porto Alegre mayor election results in 2004. The methodology we chose was the qualitative approach, that is, content analysis. In the end, we confirm the behavior of the gaucho electorate shows a receptive predisposing to the appeal to the useful vote.

  10. Uma comparação entre técnicas de propagação de erros em astrofísica: Monte Carlo x Bootstrap

    Science.gov (United States)

    Waelkens, A. H.; Janot Pacheco, E.

    2003-08-01

    Recentemente Dhillon & Watson (2001) criticaram o procedimento de determinação de erros via simulações de Monte Carlo no caso do imageamento indireto de estrelas, por introduzir ruído nos dados e resultar em erros superestimados. Estes autores propuseram a utilização alternativa do método de Bootstrap como uma técnica superior para a estimativa de erros. Neste trabalho apresentamos os resultados de um estudo comparativo da performance das técnicas de simulação por Monte Carlo e por Bootstrap para a determinação de erros em duas situações de interesse: (i) ajuste de modelos a espectros observados e (ii) imageamento indireto de discos de acréscimo com técnicas de mapeamento por eclipse. No caso (i), os dados de entrada são espectros de emissão simples de hidrogênio aos quais é adicionado ruído gaussiano de amplitude selecionada. No caso (ii), são produzidas curvas de luz do eclipse de uma distribuição de brilho seguindo a lei TµR-3/4 para discos estacionários cuja taxa de acréscimo varia ao longo do eclipse segundo uma distribuição gaussiana de amplitude selecionada, simulando o ruído. A avaliação da performance é feita com o auxílio de um diagrama do erro relativo na grandeza ajustada, conforme obtido por cada método, versus o erro relativo (ruído/sinal) dos dados de entrada. O estudo mostra que as duas técnicas produzem resultados semelhantes nos dois casos, e que a suposta superioridade do método de Bootstrap não se confirma.

  11. Processo decisório de compra de maçã na cidade de Porto Alegre - RS

    OpenAIRE

    Rockenbach, Bianca Martins

    2013-01-01

    O presente trabalho teve como objetivo principal descrever o processo decisório de compra de maçã na cidade de Porto Alegre - RS, buscando aprofundar o conhecimento acerca dos fatores que influenciam a decisão de compra da fruta pelo último elo da cadeia produtiva: o consumidor final. Para a efetiva condução deste trabalho, o processo metodológico apresentou uma pesquisa exploratória, realizada em uma fase qualitativa, em que foram apontados os indicadores relacionados à tomada de decisão ...

  12. Cotidiano violento: oficinas de promoção em saúde mental em Porto Alegre Daily violence: a study of mental health promotion in Porto Alegre (RS

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    Stela Meneghel

    2000-01-01

    Full Text Available Este trabalho foi realizado na cidade de Porto Alegre (RS e estudou famílias de baixa renda procedentes do bairro Partenon. A amostra de famílias foi selecionada pelo Conselho Tutelar da região, levando em conta tipos de infração perpetrada por algum integrante da família: pais abusivos, fuga de casa, uso de drogas, estupro e absenteísmo escolar de adolescentes. As famílias freqüentaram um grupo que se reuniu em nove encontros quinzenais, em horário noturno, durante os meses de agosto a dezembro de 1997. Nas oficinas usaram-se técnicas de pintura, música, fotografias e dramatização. Os pesquisadores reforçaram os aspectos sadios dessas famílias; colocaram limites nos comportamentos agressivos e ajudaram as pessoas a melhorar a auto-estima. Foram acompanhadas 11 famílias (33 pessoas. Destas, três participaram apenas do primeiro encontro, cinco famílias mostraram melhoras no final do processo e três famílias não puderam ser ajudadas. Acredita-se que grupos como esses podem ser úteis no manejo da violência doméstica.This work was carried out in the city of Porto Alegre (Rio Grande do Sul and studied low-income families from Partenon district. The families sample was selected by a local Children and Teenager Council, taking into account some kind of offense they have committed such as: intra-family violence, adolescents' runaway, drug addiction, school absenteeism and rape. The families attended a group during nine fortnight evening meetings, from August to September 1997. Paintings, music, photos and drama were used in the workshops. Researches improved families' healthy aspects; introduced limits on violent behavior and helped people to improve their self-esteem. Eleven families were followed (33 people. Three families attended only the first meeting; five families felt better at the end of the process and three could not be helped. Researchers believe that groups like this could be helpful to cope with domestic violence.

  13. Estudo sobre as características de usuários de drogas injetáveis que buscam atendimento em Porto Alegre, RS A study on the characteristics of intravenous drug users who seek treatment in the city of Porto Alegre, Brazil

    Directory of Open Access Journals (Sweden)

    Flavio Pechansky

    2000-12-01

    Full Text Available Introdução: O estudo descreve uma amostra de usuários de droga injetável (UDI que buscam atendimento na cidade de Porto Alegre, a fim de conhecer melhor os métodos de exposição ao vírus HIV, gerando hipóteses para estudos futuros e diretrizes para programas preventivos. Métodos: Foram entrevistados 142 UDI, utilizando uma entrevista estruturada para levantamento de fatores de risco. Foram analisadas características demográficas e das relações sexuais, utilizando-se como desfechos de interesse o status sorológico e as características do uso de drogas, tais como freqüência e tipo de droga utilizada. Resultados: 97% dos indivíduos havia injetado cocaína (8,6 dias do mês, 9,3 vezes por dia e usado álcool e maconha no mês prévio à entrevista; apenas 44 apresentavam testes HIV (54,5% soropositivos. Quase 90% haviam recebido aconselhamento para HIV, porém a mudança de condutas aconteceu somente numa parcela dos casos, sem informação adequada sobre limpeza de seringas; 53% dos indivíduos relataram compartilhamento de equipamento prévio à coleta de dados, utilizando 16,2 vezes a mesma seringa. Os entrevistados eram sexualmente ativos e predominantemente heterossexuais, com uma média de sete relações por mês; 44% não usou camisinha nas relações sexuais e 48% afirmou ter utilizado pelo menos álcool antes ou durante as relações. Conclusões: Os achados sugerem que o aconselhamento é importante para modificar hábitos dos UDI mas não contempla necessidades de usuários recreacionais. A limpeza de seringas é infreqüente, talvez produto da pouca informação sobre práticas de risco. Os UDI são sexualmente ativos, heterossexuais e na maioria têm poucos parceiros, o que pode justificar o baixo uso de preservativos nessa amostra. É possível que o uso freqüente de drogas antes ou durante as relações contribua para tal fato.Introduction: This paper presents data on a sample of inner city injection drug users

  14. Quando o privado tem interesse público: a fundação e a trajetória institucional da Faculdade Livre de Direito de Porto Alegre (1900-1937 When the Private has a Public interest: the foundation and the institutional trajectory of the Faculdade de Direito de Porto Alegre (1900-1937

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    Luiz Alberto Grijó

    2009-01-01

    Full Text Available O presente artigo enfoca a trajetória institucional da Faculdade de Direito de Porto Alegre desde a sua fundação em 1900 até 1937. Primeiro são analisados seus diretores, depois as relações entre a escola e as leis federais e, por fim, sua evolução patrimonial. Ao contrário do que alguns trabalhos sustentam, pode-se afirmar que sem o apoio das administrações públicas, notadamente pelos aportes de recursos financeiros e patrimoniais, teria sido inviável a criação e a manutenção da instituição. A existência da escola, inicialmente uma sociedade de direito privado, pois, esteve sempre atrelada ao apoio de lideranças político-partidárias da facção política hegemônica no estado brasileiro do Rio Grande do Sul.The present article approaches the institutional trajectory of the Faculdade de Direito de Porto Alegre (Porto Alegre Law School, since its foundation in 1900 up to 1937. First are analyzed its directors, then the relationships between the School and federal laws and, finally, its patrimonial evolution. Unlike some works sustain, it can be affirmed that without the support of public administrations, especially by financial and patrimonial resources, it would have been impossible the creation and the maintenance of the institution. The existence of the school, initially a private one, therefore, was always attached to the support of political leaderships from the hegemonic political faction in the Brazilian's state of Rio Grande do Sul.

  15. Consumo de suplementos nutricionais por frequentadores de academias da cidade de Porto Alegre

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    Ana Paula Trussardi Fayh

    2013-03-01

    Full Text Available O objetivo do estudo foi verificar a prevalência do uso de suplementos alimentares nas academias da cidade de Porto Alegre. Foram entrevistados 316 indivíduos com idade entre 18-59 anos. A abordagem foi por voluntariedade, em 22 academias da cidade. Observou-se um expressivo uso de suplementos nutricionais pelos participantes (28,8%, e os homens utilizam mais suplementos do que as mulheres (p<0,05. Os suplementos mais utilizados foram aqueles à base de proteínas, que são ingeridos principalmente por indicação de educadores físicos. O alto consumo de suplementos nutricionais aponta a necessidade de alertar à população quanto aos riscos relacionados ao uso indevido de suplementos nutricionais.

  16. Prevalência de cárie, gengivite e fluorose em escolares de 12 anos de Porto Alegre - RS, Brasil, 1998/1999 Prevalence of dental caries, gingivitis and fluorosis in 12-year-old schoolchildren from Porto Alegre - RS, Brazil, 1998/1999

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    Berenice Barbachan e SILVA

    2001-09-01

    Full Text Available O objetivo do estudo foi avaliar a prevalência de cárie, gengivite e fluorose em escolares de 12 anos de Porto Alegre - RS. Foram examinados 1.000 escolares da rede de ensino público e particular da cidade. Os índices utilizados foram o ISG, CPO e o ITF. Após a coleta do ISG, a criança foi submetida à remoção da placa e secagem dos dentes para proceder-se aos exames de cárie e fluorose. A média e erro padrão do CPOD, incluindo as lesões não cavitadas, foi de 2,22 ± 0,08, o ISG foi de 19,76% ± 0,54% e a prevalência de escolares com fluorose foi de 52,9%. Em relação à severidade, 45,9% das crianças apresentaram ITF 1, 6,1%, ITF 2 e 0,9%, ITF 3. Os escolares com CPOS maior que 7 (51,2% compreenderam 14,4% da amostra. Quanto ao sangramento gengival, observou-se que 12% das crianças apresentavam ISG > ou = 40%. O CPOD de Porto Alegre é comparável ao de países desenvolvidos, resultado provavelmente em decorrência do uso intensivo de flúor, que também está ocasionando a fluorose. A severidade da fluorose encontrada não justifica qualquer medida de saúde pública. As medidas de saúde pública de impacto populacional estão sendo efetivas, porém, existe uma parcela da população que necessita de cuidados adicionais.The aim of the study was to evaluate the prevalence of dental caries, gingival bleeding and fluorosis in twelve-year-old schoolchildren from Porto Alegre, Brazil. One thousand students from private and public schools were examined. The indexes used were BI, DMF and TFI. The data pertaining to BI were the first to be collected. After that, the children were submitted to plaque removal and their teeth were dried prior to the examination for caries and fluorosis. The average value for DMFT, including cavitated and non-cavitated lesions, was 2.22 ± 0.08 (standard error. The average value for BI was 19.76% ± 0.54% (standard error and the prevalence of students with fluorosis was 52.9%. Regarding the severity of

  17. Complex Adaptive Systems of Systems (CASOS) engineering environment.

    Energy Technology Data Exchange (ETDEWEB)

    Detry, Richard Joseph; Linebarger, John Michael; Finley, Patrick D.; Maffitt, S. Louise; Glass, Robert John, Jr.; Beyeler, Walter Eugene; Ames, Arlo Leroy

    2012-02-01

    Complex Adaptive Systems of Systems, or CASoS, are vastly complex physical-socio-technical systems which we must understand to design a secure future for the nation. The Phoenix initiative implements CASoS Engineering principles combining the bottom up Complex Systems and Complex Adaptive Systems view with the top down Systems Engineering and System-of-Systems view. CASoS Engineering theory and practice must be conducted together to develop a discipline that is grounded in reality, extends our understanding of how CASoS behave and allows us to better control the outcomes. The pull of applications (real world problems) is critical to this effort, as is the articulation of a CASoS Engineering Framework that grounds an engineering approach in the theory of complex adaptive systems of systems. Successful application of the CASoS Engineering Framework requires modeling, simulation and analysis (MS and A) capabilities and the cultivation of a CASoS Engineering Community of Practice through knowledge sharing and facilitation. The CASoS Engineering Environment, itself a complex adaptive system of systems, constitutes the two platforms that provide these capabilities.

  18. A construção do cuidado pela equipe de saúde e o cuidador em um programa de atenção domiciliar ao acamado em Porto Alegre (RS, Brasil The construction of care by the health team and the caretaker within a home-care program for bedridden patients in Porto Alegre (RS, Brazil

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    Ivani Bueno de Almeida Freitas

    2011-01-01

    Full Text Available Este artigo é um estudo de caso cujo objetivo principal foi compreender a construção do cuidado no Programa de Atendimento Domiciliar ao Acamado (PADA de uma unidade básica de saúde (UBS em Porto Alegre, RS. Os dados foram obtidos em 13 grupos de cuidadores na UBS e em observação participante registrada em diário de campo nos domicílios. Foi realizada análise das práticas discursivas, inspirada nos conceitos de discurso de Foucault e nos estudos sobre ética e cuidado de si. No transcurso dos grupos, os cuidadores ocuparam um espaço que chamamos metaforicamente de Oráculo de Delfos, lócus de acolhimento, escuta e de suporte. Escutar os diálogos travados entre equipe e cuidadores defrontou-nos com a contradição presente no discurso institucional que ao mesmo tempo que estimula o cuidado de si impõe normas, deveres e fazeres. O cuidado como direito de cidadania em contraposição ao cuidado como submissão e assujeitamento tensionou o grupo em vários momentos. A noção foucaultiana de cuidado compreende uma síntese entre o exercício de uma pessoa sobre ela mesma, tornando-a melhor como ser humano e, ao mesmo tempo, capacitando-a a se tornar melhor como cidadãoThe main objective of this case study was to understand the construction of care in the Homecare Program for Bedridden Patients (PADA of a basic health unit (UBS in Porto Alegre, RS. Data were obtained from 13 caretaker groups in the UBS, and participating observation recorded in field diary in the patient's homes. An analysis of the discourse practices was performed inspired in Foucault's discourse concepts speeches and in studies on ethics and self-care. In the groups, the caretaker occupied a space that we metaphorically called the Delphic Oracle, a place for acceptance, listening and support. Hearing the dialogues that took place between the team and the caretakers made us face the contradiction present in the institutional discourse, which both stimulates self

  19. Definition of risk-based screening levels to hydrocarbons in Porto Alegre municipality according to the RBCA methodology

    OpenAIRE

    Takeuchi, Eri; Roisenberg, Ari

    2009-01-01

    O presente estudo definiu valores de NABR (Níveis Aceitáveis Baseados no Risco) para hidrocarbonetos no Município de Porto Alegre, de acordo a metodologia RBCA, adotando-se dados hidrogeológicos dos compartimentos Embasamento Cristalino alterado e Depósitos Sedimentares Quaternários. Os parâmetros de exposição adequados à população do município, bem como dados de toxicidade dos compostos selecionados, foram definidos a partir de fontes bibliográficas e bancos toxicológicos disponíveis. As tab...

  20. Agravos clínicos atendidos pelo Serviço de Atendimento Móvel de Urgência (SAMU de Porto Alegre - RS Agravios clínicos atendidos por el Servicio de Atención Móvil de Urgencia (SAMU de Porto Alegre - RS Conditions treated in the Mobile Medical Emergency Services in Porto Alegre - RS

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    Giselda Quintana Marques

    2011-01-01

    Full Text Available OBJETIVO: Caracterizar os agravos clínicos atendidos pelo Serviço de Atendimento Móvel de Urgência (SAMU, de Porto Alegre, no período de janeiro a junho de 2008. MÉTODOS: Estudo transversal, descritivo, exploratório. Utilizaram-se dados do sistema de informações do SAMU que foram transportados para o Programa Excel. O tratamento e análise dos dados foram descritivos. RESULTADOS: Os agravos neurológicos, cardiovasculares, respiratórios, digestivos e metabólicos foram os mais prevalentes, e a maioria ocorreu na faixa etária de 41-60 anos. Os hospitais públicos e unidades de pronto-atendimento foram as principais portas de entrada dos pacientes atendidos pelo SAMU. CONCLUSÃO: Os resultados podem contribuir para uma melhor organização do serviço e apontam necessidades de qualificação do atendimento de enfermagem que tem participação decisiva no cuidado ao paciente.OBJETIVO: Caracterizar los agravios clínicos atendidos por el Servicio de Atención Móvil de Urgencia (SAMU, de Porto Alegre, en el período de enero a junio del 2008. MÉTODOS: Estudo transversal, descriptivo, exploratorio. Se utilizaron datos del sistema de informaciones del SAMU que fueron pasados al Programa Excel. El tratamiento y análisis de los datos fueron descriptivos. RESULTADOS: Los agravios neurológicos, cardiovasculares, respiratorios, digestivos y metabólicos fueron los más prevalentes, y la mayoría ocurrió en el grupo etáreo de 41-60 años. Los hospitales públicos y unidades de pronta-atención fueron las principales puertas de entrada de los pacientes atendidos por el SAMU. CONCLUSION: Los resultados pueden contribuir para una mejor organización del servicio y señalan necesidades de calificación de la atención de enfermería que tiene participación decisiva en el cuidado al paciente.OBJECTIVE: To characterize the conditions treated in the Mobile Medical Emergency Services (SAMU in Porto Alegre, from January to June 2008. METHODS: A

  1. Un mosaico de narraciones situadas en la posguerra española: Inés y la alegría (2006 de Almudena Grandes / A mosaic of narratives situated in postwar Spain: Inés y la alegría (2010 by Almudena Grandes

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    Ingrid Lindström Leo

    2012-09-01

    Full Text Available Resumen: Inés y la alegría, de Almudena Grandes (2010, es la primera novela de una planificada serie titulada Episodios de una guerra interminable. En esta novela las “dos Españas” se configuran en los personajes, algunos ficticios, otros históricos, sobre todo en las dos figuras femeninas principales que vienen a manifestar una búsqueda de libertad personal en la época de la posguerra española. A través de diferentes focalizaciones y narraciones se presentan unos paradigmas éticos o morales frente a la alteridad, al otro, que sirven para distinguir entre el bien y el mal, los buenos y los malos.Summary: Inés y la alegría, by Almudena Grandes (2010 is the first of a series of novels entitled Episodios de una Guerra interminable [Episodes of an endless War]. In this novel, the image of the “two Spains” is made up by the characters, some fictitious, others historical, and particularly by the two female protagonists who represent a quest for personal liberty in the years following the Spanish Civil War. Different focal points and narratives serve to present ethical or moral paradigms regarding "the other" that are used to distinguish between good and evil, good and bad people.

  2. HOMICIDIO SEGUIDO DE SUICIDIO

    OpenAIRE

    Dubugras Sá, Samantha; Pontificia Universidad Catolica do Rio Grande do Sul

    2007-01-01

    El homicidio seguido de suicidio (H/S) es un fenómeno complejo y poco estudiado. El objetivo de esta investigación fue identificar casos de H/S ocurridos en Porto Alegre entre 1996 y 2004. Las informaciones sobre los H/S fueron localizados en noticias de periódicos, interrogatorios policiales y entrevistas con informantes. En los 14 casos identificados los hombres fueron los asesinos/suicidas y las mujeres y niños, sus víctimas. El instrumento más utilizado fue un arma de fuego. El agresor ge...

  3. Inexistência de diferenças de sexo no fator g (inteligência geral) e nas habilidades específicas em crianças de duas capitais brasileiras

    OpenAIRE

    Flores-Mendoza,Carmen E.; Mansur-Alves,Marcela; Lelé,Álvaro José; Bandeira,Denise Ruschel

    2007-01-01

    O presente trabalho pretendeu examinar diferenças relacionadas ao sexo no fator g (inteligência geral) e em habilidades específicas em crianças de duas cidades brasileiras: Belo Horizonte e Porto Alegre. No caso da amostra mineira (n=1,316), a idade compreendeu entre 5 e 11 anos de idade examinada através de uma bateria de testes a qual incluiu instrumentos de inteligência (Raven, Escala Verbal WISC III, R-2, DFH), de avaliação psicomotora (Bender) e de desempenho escolar (TDE). No caso da am...

  4. Repercussões da Lei Maria da Penha no enfrentamento da violência doméstica em Porto Alegre Repercusiones de la Ley Maria da Penha en el enfrentamiento de la violencia doméstica en Porto Alegre Repercussions of Maria da Penha Law on addressing domestic violence in Porto Alegre

    Directory of Open Access Journals (Sweden)

    Elisângela da Silva Alves

    2012-09-01

    Full Text Available O presente estudo procurou analisar as repercussões da Lei Maria da Penha no enfrentamento da violência doméstica contra mulheres, na cidade de Porto Alegre, a partir da visão dos profissionais que constituem a rede de atendimento a elas. Foram entrevistados sete profissionais que atuam na rede de atendimento a mulheres vítimas de violência. Os dados sugerem que a Lei promoveu mudanças nos campos da prevenção da violência, da assistência a mulheres e da punição aos agressores, com aumento da visibilidade conferida a esse fenômeno e empoderamento feminino. Conclui-se que o fortalecimento das medidas preconizadas pela Lei Maria da Penha ainda depende de investimentos na qualificação dos profissionais, de ações articuladas entre os locais de atendimento e de crescente utilização da atenção básica para a promoção da saúde de mulheres e famílias expostas à violência.El presente trabajo buscó analizar las repercusiones de la Ley Maria da Penha en el enfrentamiento de la violencia doméstica contra mujeres en la ciudad de Porto Alegre, a partir de la visión de los profesionales que constituyen la red de atendimiento a ellas. Fueron entrevistados siete profesionales que actúan en la red de atendimiento a mujeres víctimas de violencia. Los datos sugieren que la Ley promovió cambios en el campo de la prevención de la violencia, de la asistencia a mujeres y de la punición a los agresores, con el aumento de la visibilidad dada a ese fenómeno y el empoderamiento femenino. Se concluye que el fortalecimiento de las medidas preconizadas por la Ley Maria da Penha aún depende de inversión en la calificación de los profesionales, de acciones articuladas entre los locales de atendimiento y de creciente utilización de la atención básica para la promoción de la salud de mujeres y las familias expuestas a la violencia.The current paper sought to analyze the repercussions of Maria da Penha Law on addressing the issue of

  5. Neuroblastomicose: registro de três casos

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    Ehrenfried O. Wittig

    1968-03-01

    Full Text Available São relatados três casos de neuroblastomicose de sintomatologia variada (urna forma tumoral cerebelar, urna forma abscedante troncular e cerebral e urna forma granulomatosa difusa. No caso da forma tumoral cerebelar havia associação com cisticercose cerebral. Alterações medulares não foram evidenciadas no único caso em que foi possível examinar êste setor do sistema nervoso central (caso 2.

  6. Estudo das emissões de fontes móveis na região metropolitana de Porto Alegre, Rio Grande do Sul Study of the emissions from moving sources in the metropolitan area of Porto Alegre - RS - Brazil

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    Elba Calesso Teixeira

    2008-01-01

    Full Text Available The present study aims at assessing the influence of pollution from mobile sources on air quality in the Metropolitan Area of Porto Alegre by means of an inventory based on methods applied specifically to vehicular emissions. The study uses the method described by CETESB, based on inventories on vehicular emissions, according to USEPA methodology. Following fuel types were taken into account: gasoline (24% ethanol, alcohol, diesel oil, and CNG (compressed natural gas. Results have shown that gasoline-powered vehicles are still responsible for emitting the highest CO and HC concentrations, while diesel-powered vehicles are the source of highest NOx, MP and SOx concentrations.

  7. Picadura de medusa Olindias sambaquiensis: Análisis de 49 casos

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    Juan H Mosovich

    2012-10-01

    Full Text Available La picadura de la medusa o agua viva Olindia sambaquiensis es de ocurrencia frecuente en las playas de la costa de la provincia de Buenos Aires. Se notifican entre quinientas y mil picaduras de medusas por temporada en la localidad balnearia de Monte Hermoso, al sur de la provincia de Buenos Aires. El daño cutáneo que provoca por su elevada acción urticante plantea un serio inconveniente para el desarrollo del turismo. Durante el mes de enero de 1998, en la localidad de Monte Hermoso se reunieron un total de 49 casos que fueron examinados dentro de la hora posterior a la picadura. Veintiocho eran de sexo masculino (57.1%. La edad promedio fue de 16 ± 4.1 (rango 5-80. El 54% presentó lesiones eritemato-edematosas de configuración lineal, el 28% presentó lesiones predominantemente eritematosas y el 18% presentó placas eritemato-edematosas. En el 73% de los casos las lesiones se localizaron en miembros inferiores. Hemos redefinido la lesión cutánea producida por la medusa O. sambaquiensis, su evolución, sus dimensiones y localizaciones más frecuentes. Además, se ha tipificado y cuantificado el dolor que produce, y otros signos y síntomas que acompañan a la picadura en la hora posterior, a las primeras 24 horas y a los 30 días. Describimos las conductas terapéuticas utilizadas en nuestra costa, evaluamos la efectividad de algunas de ellas en el control del dolor y finalmente proponemos un esquema terapéutico para dicha picadura.Olindias sambaquiensis jellyfish sting occurs frequently in Buenos Aires province coast beaches. Among five hundred and one thousand stings by jellyfish are reported each season at Monte Hermoso, a beach village in the South of Buenos Aires province. The skin damage provoked because of its highly irritant effect poses a serious issue related to tourism development. A total number of 49 cases that were examined during the first hour after the sting were enrolled in Monte Hermoso during January 1998. Twenty

  8. Mapas imaginários sobre Porto Alegre: a cidade midiática

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    Nilda Jacks

    2010-12-01

    Full Text Available Entre julho e agosto de 2007, os principais meios de comunicação de Porto Alegre foram observados por uma equipe de professores e alunos da Faculdade de Biblioteconomia e Comunicação da Universidade Federal do Rio Grande do Sul (UFRGS para identificar que cidade eles ajudam a construir no imaginário do cidadão. Esta pesquisa faz parte de uma mais ampla para conhecer os imaginários urbanos da América Latina, com extensão a algumas urbes européias. Seguindo a metodologia de Silva, a pesquisa foi divida em três eixos que se entrecruzam: dados oficiais e históricos sobre o município, enquete para verificar as percepções dos cidadãos sobre a cidade e análise das representações construídas pelos diferentes meios de comunicação, este último é foco deste texto.

  9. Mapeamento de áreas de inundação na sub-bacia do córrego Horizonte, município de Alegre, ES. Mapping areas of flooding in Horizonte stream sub-basin, municipality of Alegre, ES.

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    Rafaela da SILVEIRA

    2013-12-01

    Full Text Available Inundação é um evento natural, entretanto vem ocasionando cada vez mais danos humanos e materiais. O mapeamento das áreas inundáveis é importante para eliminar os riscos de ocorrência do fenômeno e estabelecer o uso adequado de determinados locais da bacia. O objetivo deste trabalho foi delimitar as áreas de risco na sub-bacia do córrego Horizonte, pertencente ao município de Alegre, ES. Para o mapeamento das áreas sujeitas à inundação foi utilizada a metodologia proposta por Saaty (1977 e os mapas foram confeccionados pelo aplicativo ArcGIS. Os resultados evidenciam que a declividade do terreno aliada à hidrografia e altitude, são importantes parâmetros de determinação de áreas propícias à inundação. Na sub-bacia em estudo, a região sul apresenta médio risco, sendo observado o contrário na região norte.Flooding is a natural event, however it is causing more and more casualties and damage. The mapping of the wetlands is important to eliminate the risk of occurrence of the phenomenon and to determine the appropriate use of certain areas of the basin. The aim of this study was to define risk areas in the Horizonte stream subbasin, belonging to the municipality of Alegre, ES. For the mapping of areas subject to flooding the methodology proposed by Saaty (1977 was used and the maps were made by ArcGIS application. The results show that the land declivity combined with hydrography and altitude are important parameters for determining the flood prone areas. In the studied sub-basin, the southern region has average risk, whereas the opposite was observed in the north.

  10. O modo de fazer saúde: reflexões sobre o cotidiano de uma unidade básica de saúde de Porto Alegre - RS The mode of health care: reflections on the daily practice of a primary health unit Porto Alegre - RS

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    Luciane Chiapinotto

    2007-04-01

    Full Text Available Neste artigo discute-se o modo de fazer saúde em uma Unidade Básica de Saúde de Porto Alegre-RS a partir da compreensão do processo histórico da constituição de formas de assistência à saúde no Brasil. Durante a experiência de trabalho na Residência Integrada em Saúde, surgiram questionamentos acerca do trabalho no contexto do Sistema Único de Saúde (SUS e os conceitos de saúde e cuidado que estavam operando no cotidiano de atendimento do serviço. A observação participante foi a ferramenta utilizada para a reflexão do cotidiano de trabalho desta Unidade. Desta forma, emergiram três categorias: a relação públicoprivado, o discurso da equipe sobre a população e a demanda da Residência Integrada em Saúde: transformação do modo de trabalhar. Assim, procura-se dar visibilidade aos elementos que atravessam o trabalho nesta Unidade, considerando os paradigmas que sustentam as práticas e apontando para a importância da discussão e dos espaços de escuta na construção de novos modos de trabalhar com saúde.This article discusses the mode of health care in a Primary Health Unit of Porto Alegre, in the state of Rio Grande do Sul, based on the understanding of the historical process of the constitution of types of health assistance in Brazil. During the experience in the Integrated Health Residency, some questions emerged regarding work in the context of Brazil's National Health System (SUS, and the concepts of health and care that were operating on the daily practice of this service. Participant observation was the tool used in this research for a reflection on the daily practice of the Unit. In this way, three categories emerged: the public/private relationship, the team's discourse about the population, and the demand of the Integrated Health Residency: changes in the manner of working. Thus, the article gives visibility to the elements pertaining to work in this Unit, pointing to the importance of the discussion and of

  11. GENERACIÓN DE CASOS DE PRUEBA A PARTIR DE CASOS DE USO EN LAS PRUEBAS DE SOFTWARE

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    Orelvis Vázquez Ruiz

    2006-04-01

    Full Text Available

    Los casos de uso son utilizados para expresar la funcionalidad requerida en un sistema. Los casos de prueba derivados directamente de casos de uso aprovechan la ventaja que constituye contar con la especificación existente de estos últimos, para garantizar un basamento sólido para las pruebas a realizar sobre el sistema. La capacidad para crear casos de prueba a partir de los casos de uso, y hacer la traza de unos a otros, es una habilidad vital para asegurar un producto de calidad.

  12. Monte Carlo methods

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    Bardenet Rémi

    2013-07-01

    Full Text Available Bayesian inference often requires integrating some function with respect to a posterior distribution. Monte Carlo methods are sampling algorithms that allow to compute these integrals numerically when they are not analytically tractable. We review here the basic principles and the most common Monte Carlo algorithms, among which rejection sampling, importance sampling and Monte Carlo Markov chain (MCMC methods. We give intuition on the theoretical justification of the algorithms as well as practical advice, trying to relate both. We discuss the application of Monte Carlo in experimental physics, and point to landmarks in the literature for the curious reader.

  13. Os fungos anemófilos e sensibilização em indivíduos atópicos em Porto Alegre, RS Airborne fungi and sensitization in atopic individuals in Porto Alegre, RS, Brazil

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    Adelina Mezzari

    2003-09-01

    Full Text Available OBJETIVOS: Identificar e caracterizar a freqüência e a concentração de esporos de fungos anemófilos em Porto Alegre. Determinar a prevalência de sensibilização a estes fungos em indivíduos atópicos. MÉTODOS: Em 52 amostras colhidas no equipamento Rotorod Sampler®, foram quantificados 3773 esporos de fungos no período de um ano (abril de 2000 a março de 2001. Em 39 pacientes atópicos com rinite e ou asma foram realizados testes cutâneos com alérgenos de fungos anemófilos e o teste fluorimunoenzimático para verificar a incidência de manifestações alérgicas provocadas por tais fungos. RESULTADOS: Em 3773 esporos de fungos encontrados foram identificados 674 (17,86% de Cladosporium sp, 567 (15,03% do grupo Aspergillus/Penicillium, 144 (3,82% de rusts, 94 (2,49% de Helminthosporium sp, 46 (1,22% de Botrytis sp, 45 (1,19% de Alternaria sp, 34 (0,90% de smuts, 33 (0,87% de Curvularia sp, 23 (0,61% de Nigrospora sp e 3 (0,08% de Fusarium sp. Também foram encontrados 1905 (50,49% de ascosporos e 145 (3,84% de basidiosporos. Não foram possíveis de serem identificados 60 (1,59% dos esporos observados. Nos 39 testes cutâneos e sorológicos realizados, resultaram em 15,38% de indivíduos atópicos sensibilizados por alérgenos de fungos em Porto Alegre. CONCLUSÕES: A ocorrência de grande número de esporos de fungos no ar em nossa cidade enfatiza a importância deste estudo sobre os fungos anemófilos, sendo eles responsáveis por 15,38% das sensibilizações alérgicas em indivíduos atópicos com manifestações de asma e ou rinite.OBJECTIVE: To identify and quantify the fungal spores in the atmospheric air of Porto Alegre and to assess sensitization to these allergens in atopic individuals suffering from rhinitis and asthma. METHODS: A total of 52 samples were obtained using a Rotorod Sampler® from April 2000 through March 20001. Allergy skin tests with anemophilous fungus allergens as well as fluorimmunoenzymatic tests were

  14. Prevalência do consumo de drogas na FEBEM, Porto Alegre Drug use prevalence at FEBEM, Porto Alegre

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    Maristela Ferigolo

    2004-03-01

    Full Text Available OBJETIVO: Identificar a prevalência do uso de drogas entre crianças e adolescentes institucionalizados e avaliar o uso associado das substâncias lícitas, álcool e tabaco, com drogas ilícitas; e verificar qual a droga de uso inicial para o consumo das substâncias psicoativas ilícitas. MÉTODOS: Realizou-se um estudo transversal na Fundação Estadual do Bem-Estar do Menor do Rio Grande do Sul, na cidade de Porto Alegre. Um questionário elaborado pela Organização Mundial da Saúde, anônimo, sobre o uso de drogas e sua quantificação, auto-aplicado em salas de aula, foi respondido pela população de crianças e adolescentes alfabetizados que cumpriam medidas socioeducativas ou medidas protetivas. A análise visou descrever o uso de drogas entre os dois subgrupos levando em conta gêneros e idades de início de uso. RESULTADOS: Os resultados foram obtidos a partir de 382 indivíduos. As substâncias mais experimentadas foram: álcool (81,3%, tabaco (76,8%, maconha (69,2%, cocaína (54,6%, solventes (49,2%, ansiolíticos (13,4%, alucinógenos (8,4%, anorexígenos (6,5% e barbitúricos (2,4%. Em torno de 80% afirmaram ter usado experimentalmente alguma droga ilícita. As meninas usaram principalmente medicamentos e os meninos drogas ilícitas, álcool e tabaco. As crianças albergadas por atos infracionais mostraram uso significativamente mais freqüente de álcool, maconha, cocaína e solventes. A idade de início do álcool e tabaco ocorreu antes dos 12 anos; maconha e solventes, antes dos 13, e cocaína, antes de completar 14, em média. Verificou-se alta freqüência de uso concomitante de drogas lícitas e ilícitas por esta população. CONCLUSÕES: A prevalência de experimentação e uso de drogas entre crianças e adolescentes institucionalizados é alta e precoce. As drogas lícitas foram usadas mais precocemente que as ilícitas. Indivíduos do sexo masculino e albergados por atos infracionais apresentam maior probabilidade de

  15. Fobia social: estudo da prevalência em duas escolas em Porto Alegre Social phobia: a study of the prevalence in two schools in Porto Alegre

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    Gabrielly Cruvinel Fernandes

    2008-01-01

    Full Text Available A fobia social é freqüente entre adolescentes, sendo importante a sua identificação e a determinação de potenciais prejuízos. OBJETIVOS: Relatar a prevalência e o impacto na escolaridade da fobia social em uma amostra de adolescentes. MÉTODOS: O inventário de fobia social (SPIN foi administrado em 525 alunos dos ensinos fundamental e médio, de ambos os sexos, em uma escola pública e em uma particular, na cidade de Porto Alegre, Brasil, porquanto 32 foram excluídos por respostas incompletas. Foi aplicado também um questionário para identificação das características sociodemográficas da amostra. RESULTADOS: De acordo com o SPIN, 114 dos 493 alunos (23,12% obtiveram escores iguais ou superiores a 19 pontos no referido inventário, indicando a presença de sintomas compatíveis com o diagnóstico de fobia social. As meninas tenderam a apresentar maior freqüência de transtorno de ansiedade social em relação aos meninos (p = 0,053. Não foi encontrada associação significativa entre repetência e fobia social. CONCLUSÕES: Os sintomas compatíveis com o diagnóstico de fobia social são prevalentes em adolescentes e, em virtude de seu curso crônico, podem causar sérios prejuízos nestes indivíduos. Neste estudo, não foi possível correlacionar fobia social com repetência escolar. No entanto, é de fundamental importância a identificação e o tratamento precoce deste transtorno de ansiedade.Social phobia is frequent among adolescents, and its identification and determination of potential impairments are of great importance. OBJECTIVES: To report the prevalence and impact of social phobia on education in a sample of adolescents. METHODS: The Social Phobia Inventory (SPIN was administered to 525 students of primary and high school, of both genders, in one public and one private school in the city of Porto Alegre, Brazil, but 32 students were excluded from the study due to incomplete answers. A sociodemographic questionnaire

  16. [Repercussions of Maria da Penha law on addressing domestic violence in Porto Alegre].

    Science.gov (United States)

    Alves, Elisângela da Silva; de Oliveira, Dora Lúcia Leidens Corrêa; Maffacciolli, Rosana

    2012-09-01

    The current paper sought to analyze the repercussions of Maria da Penha Law on addressing the issue of domestic violence against women in the city of Porto Alegre based on the view of professionals who constitute the care network for those women. Seven professionals, who work with the care for women who are victims of violence, were interviewed. Data suggests that the law has promoted changes in the field of violence prevention, assistance to women and punishment for the perpetrators, and it also increased the attention given to this phenomenon and enhanced female empowerment. It is concluded that the strengthening of the measures recommended by Maria da Penha Law still depends on investments in professional qualification, articulated actions between the places which provide assistance and the growing use of primary care services in order to improve the health of women and families exposed to violence.

  17. Presence of p-synephrine in teas commercialized in Porto Alegre (RS/Brazil

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    Marcelo Dutra Arbo

    2009-06-01

    Full Text Available Citrus aurantium (bitter orange is characterized by the presence of p-synephrine, an amine structurally and pharmacologically related to ephedrine. Besides the same adverse effects as ephedrine, nowadays it is believed that altered levels of p-synephrine can be associated to the occurrence of migraine and cluster headaches. Leaves and fruits of this species are highly commercialized in form of teas and herbal preparations, but without taking into account the risks associated with its use. This work describes a survey of teas and herbal preparations containing C. aurantium, commercialized in Porto Alegre (RS/Brazil, in order to verify the presence of p-synephrine. Comparing with the mean amount available in the supermarkets, around 20% of the teas and 10% of the herbal preparations declared the presence of C. aurantium in their labels. In a sampling of 15 teas and 2 herbal preparations selected for the analysis, the presence of p-synephrine was characterized in all samples, with levels between 0.0040 to 0.2308%, leading to a caution that even being natural products, they are not free of adverse effects.Citrus aurantium (laranjeira-azeda é caracterizada pela presença de p-sinefrina, amina estrutural e farmacologicamente similar à efedrina. Além de poder causar efeitos adversos similares aos da efedrina, atualmente acredita-se que níveis endógenos alterados de p-sinefrina possam estar associados à causa da enxaqueca. Folhas e frutos desta espécie são largamente comercializados na forma de chá e em preparados de erva-mate, sem que sejam considerados os riscos associados ao seu uso. Neste sentido, este trabalho descreve uma pesquisa em chás e preparados de erva-mate comercializados em Porto Alegre, para verificar a presença de C. aurantium e p-sinefrina. Comparando com a quantidade média disponível nas prateleiras dos supermercados, cerca de 20% dos chás e 10% dos preparados de erva-mate declaravam nos rótulos conter C. aurantium. De

  18. Ways For Research: What Said The Papers Of Secretary Of Municipal Porto Alegre About Working Collective Caminos De Pesquisa: O Qué Dicem Los Documentos De La Secretaria De Educación Del Municipio De Porto Alegre Sobre El Trabajo Colectivo Caminhos De Pesquisa: O Que Dizem Os Documentos Da Secretaria Municipal De Educação De Porto Alegre Sobre o Trabalho Coletivo

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    2008-08-01

    Full Text Available

    This article was constructed from the information collected for the doctorado research of that tematize the collective work of the professors of Physical Education of the Municipal Net of Education of Porto Alegre. One of the procedures adopted in the construccion of the research – that it is in progress – was the document analysis of the city department of Education being this of basic important to understand the espace of teaching work in this net Education. The document analysis caried trought allowed to understand that even so change in the mangement of the Secretaried has occurred, the colletive work remens as possibility of concretion of the Politician-Pedagogical Proposal in the school of this city.

    Este artículo fue construído de la información recogida para la investigación del doctorado que tematiza el trabajo colectivo de los profesores de la Educación Física de la Red Municipal de La Educación de Porto Alegre. Uno de los procedimientos adoptados em la construcción de la investigación que él está em marcha – fue el analisis de documentos del departamento de la ciudad de la educación, siendo el de la importância básica para entender el espacio del trabajo de ensenanza em esta Red de la Educación. Sigue habiendo el analisis de documentos llevó permitido através para entender que sin embargo há ocurrido el cambio em la gerencia de la Secretaría, el trabajo colectivo como posibilidad de concretión de la oferta Politico-Pedagogica en las escuelas desta ciudad.

    Este artigo trata do trabalho coletivo dos professores de Educação Física da Rede Municipal de Ensino de Porto Alegre. Através da análise de documentos da Secretaria Municipal de Educação, na pesquisa que está em andamento esse procedimento é de fundamental importância para compreender o

  19. Comparing The Profile Of Chemical Dependents Hospitalized At A Chemical Dependency Unit In Porto Alegre/RS In 2002 And 2006

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    Leonel Tesch Formiga

    2009-09-01

    Full Text Available Background: Studies on the use of psychoactive substances have been focused on identifying risk and protective factors related to this behavior based on the definition of the epidemiologic profile of such populations. The objective of the present study is to compare the profiles of samples of chemical dependent patients hospitalized at a Detoxification Unit (DU in Porto Alegre, state of Rio Grande do Sul, Brazil, in 2002 with the patients hospitalized in 2006. Method: This is a cross-sectional, descriptive and retrospective study. The research was carried out using medical records. We used a convenience sample divided into two groups: 1 all patients hospitalized at the DU from September to December 2006 (n=118; 2 all patients hospitalized at the same Unit from April to May 2002 (n=202. Results: There was a significant increase in the use of marijuana, inhaled cocaine and crack and a decrease in the use of solvents; there was no change concerning the use of alcohol and injected cocaine. It is important to mention the increase in the prevalence of crack users, which increased from 21.8% to 61.9%. There was a decrease of almost 30% in the number of alcoholics who did not use other psychoactive substances except for tobacco in the 2006 sample. Psychiatric comorbidities were quite prevalent, and we can highlight a significant increase in the number of patients with personality disorders. Conclusion: We conclude that the profile of chemical dependents hospitalized for detoxification is changing; therefore, it is important that new therapeutic strategies are planned in order to better assist this population.

  20. Envenomation by the neotropical colubrid Boiruna maculata (Boulenger, 1896: a case report Envenenamento por Colubrídeo Neotropical Boiruna maculata (Boulenger, 1896: registro de um caso

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    Maria Cristina dos SANTOS-COSTA

    2000-10-01

    Full Text Available This is a case report of a Boiruna maculata snake bite in a child admitted to the Hospital Municipal de Pronto Socorro de Porto Alegre, Porto Alegre, RS, Brazil. The patient was bitten on the lower left limb, and exhibited pronounced local manifestations of envenomation. She was treated with Bothrops antivenom and was discharged from the hospital five days later with marked improvement of envenomation.Este trabalho relata o envenenamento por serpente do gênero Boiruna maculata em criança admitida e posteriormente hospitalizada no Hospital Municipal de Pronto Socorro de Porto Alegre, RS, Brasil. A paciente foi mordida no membro inferior esquerdo e apresentou sinais de envenenamento local pronunciado, foi tratada como acidente botrópico e permaneceu no hospital por cinco dias, recebendo alta após melhora.

  1. Porto Alegre e seus patrimônios no século XX: evolução de conceitos, valores e feições na materialidade urbana

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    Jeniffer Cuty

    2007-12-01

    Full Text Available Discute algumas questões referentes à transformação de Porto Alegre no século XX, refletindo posturas diante de suas arquiteturas e seus traçados urbanos, bem como de seus planos e programas de preservação e valorização do patrimônio cultural.

  2. HIV rapid testing as a key strategy for prevention of mother-to-child transmission in Brazil Prueba rápida para el HIV como una estrategia para la prevención de la transmisión vertical en Brasil Teste rápido para o HIV como estratégia de prevenção da transmissão vertical no Brasil

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    Valdiléa G Veloso

    2010-10-01

    provide this population access to health care services after hospital discharge.OBJETIVO: Analizar la viabilidad de evaluación rápida del HIV entre gestantes en la admisión en la maternidad y de intervenciones para reducir la transmisión perinatal del HIV. MÉTODOS: Muestra de conveniencia de mujeres que desconocían su situación serológica para el HIV al ser admitidas para el parto en maternidades públicas de Rio de Janeiro (Sureste y de Porto alegre (Sur de Brasil, entre marzo de 2000 y abril de 2002. Las mujeres fueron aconsejadas y evaluadas con prueba rápida Determine HIV1/2 en la maternidad. Infección por el HIV fue confirmada por el algoritmo brasilero para el diagnóstico de la infección por el HIV. La transmisión intra- útero fue determinada por el PCR-DNA-HIV. Fueron realizados análisis descriptivos de los datos sociodemográficos, número de gestaciones y de abortos previos, número de visitas de prenatal, momento de la evaluación para el HIV, resultado de la prueba rápida para el HIV, intervenciones recibidas por los recién nacidos y de transmisión vertical del HIV, de acuerdo con cada ciudad. RESULTADOS: La prevalencia de HIV entre las mujeres fue de 6,5% (N=1.439 en Porto Alegre y 1,3% (N=3,778 en Rio de Janeiro. La mayoría fue evaluada durante el trabajo de parto en Porto Alegre y en el postparto, en Rio de Janeiro. Ciento y cuarenta y cuatro niños nacieron de 143 mujeres infectadas por el HIV. Todos los recién nacidos recibieron al menos la profilaxia con zidovudina oral, excepto uno en cada ciudad. Fue posible evitar cualquier exposición a la leche materna en 96,8% y 51,1% de los recién nacidos en Porto Alegre y en Rio de Janeiro, respectivamente. La zidovudina inyectable fue administrada durante el trabajo de parto a 68,8% de los recién nacidos en Porto Alegre y 27,7% en Rio de Janeiro. Entre aquellos con muestras de sangre colectadas hasta 48 horas de nacimiento, la transmisión intra-útero fue confirmada en cuatro casos en Rio

  3. Identification of thermotectonics events by 40Ar/39Ar methodology, in Jauru, Pontes e Lacerda and Rio Alegre Terrane - southwest portion of Amazon Craton

    International Nuclear Information System (INIS)

    Paulo, Valeria Guimaraes de

    2005-01-01

    The southwest portion of Amazon Craton, subject of these work, correspond to the southwest region of Mato Grosso State and is inserted on Rio Negro-Juruena, Rondoniana-San Ignacio and Sunsas-Aguapei geochronologic Provinces. This region is surrounded by three big terranes: Jauru, Pontes e Lacerda and Rio Alegre. The main aim of this study is to use the ages of termochronologic events obtained by 40 Ar/ 39 Ar methodology, including data of literature, to contribute with the study of the geotectonic evolution on this region. Twenty samples were analyzed and 40 Ar/ 39 Ar ages found for the Jauru Terrane vary of 1539 ± 3 Ma to 1338 ± 3 Ma, for the Pontes e Lacerda Terrane the interval obtained was of 946,1 ± 0,8 Ma to 890 ± 2 Ma and for Rio Alegre Terrane the ages are between 1407 ± 3 Ma to 1321 ± 2 Ma. U/Pb, Rb/Sr and Sm/Nd data from previous works, together with 40 Ar/ 39 Ar results allowed to obtain cooling average rates to each terrane. The Jauru Terrane units cooling age is equivalent to 1,52 Ga. The cooling average rates found to Alto Jauru Greenstone belt rocks is 2,4 deg C - 1,0 Ma and to Magmatic Arc Cachoeirinha is 10,8 deg C - 1,0 Ma. Stabilization age obtained for Pontes and Lacerda Terrane is about 900 Ma coherent with the cooling age of the Sunsas Aguapei Event (1,0 - 0,9 Ga) and cooling average rates calculate were the lower, equivalent to 1,0 deg C - 1,0 Ma. Cooling age found in Rio Alegre Terrane was 1,35 Ga, possibility correspond to collision age these terrane with Amazonian protoCraton and cooling average rates of 5,0 deg C - 1,0 Ma. Finally, younger age found of 900 Ma, coherent to the Sunsas - Aguapei Event, probably represent the last regional event that affected these rocks, characterizing the stabilization period of the southwest portion of Amazon Craton. (author)

  4. Exploring Monte Carlo methods

    CERN Document Server

    Dunn, William L

    2012-01-01

    Exploring Monte Carlo Methods is a basic text that describes the numerical methods that have come to be known as "Monte Carlo." The book treats the subject generically through the first eight chapters and, thus, should be of use to anyone who wants to learn to use Monte Carlo. The next two chapters focus on applications in nuclear engineering, which are illustrative of uses in other fields. Five appendices are included, which provide useful information on probability distributions, general-purpose Monte Carlo codes for radiation transport, and other matters. The famous "Buffon's needle proble

  5. Specialized Monte Carlo codes versus general-purpose Monte Carlo codes

    International Nuclear Information System (INIS)

    Moskvin, Vadim; DesRosiers, Colleen; Papiez, Lech; Lu, Xiaoyi

    2002-01-01

    The possibilities of Monte Carlo modeling for dose calculations and optimization treatment are quite limited in radiation oncology applications. The main reason is that the Monte Carlo technique for dose calculations is time consuming while treatment planning may require hundreds of possible cases of dose simulations to be evaluated for dose optimization. The second reason is that general-purpose codes widely used in practice, require an experienced user to customize them for calculations. This paper discusses the concept of Monte Carlo code design that can avoid the main problems that are preventing wide spread use of this simulation technique in medical physics. (authors)

  6. Biobanco do Hospital de Clínicas de Porto Alegre: Aspectos Técnicos, Éticos, Jurídicos e Sociais

    Directory of Open Access Journals (Sweden)

    Patrícia Ashton-Prolla

    2009-05-01

    Full Text Available As atividades de pesquisa em saúde cada vez mais necessitam do armazenamento de materiais biológicos em biorepositórios e em biobancos. O estabelecimento de políticas institucionais para lidar com aspectos técnicos, éticos, legais e sociais é imprescindível para garantir a sua adequação. O Hospital de Clínicas de Porto Alegre está com um projeto de desenvolvimento em execução para propiciar que estas atividades sejam harmônicas e integradas.

  7. Risk and prognostic factors for diarrheal disease in Brazilian infants: a special case-control design application Fatores de risco e prognósticos para diarréia entre crianças brasileiras: uma aplicação especial do delineamento de casos e controles

    Directory of Open Access Journals (Sweden)

    Sandra Costa Fuchs

    2002-06-01

    Full Text Available The aim of this study was to examine the effect of demographic, socioeconomic, environmental, maternal reproductive, dietary, and nutritional variables on diarrhea risk and prognosis using a hierarchical framework. A case-control study of children aged 0-23 months in Greater Metropolitan Porto Alegre was conducted during the peak season for diarrhea in 1987-1988. Three groups were investigated, with 192 children each. The first group included hospitalized children with an episode of acute diarrhea complicated by moderate to severe dehydration. The second group included children with acute mild diarrhea without signs of dehydration who were identified in the same neighborhood as hospitalized cases. The third group consisted of controls without diarrhea. Mothers were interviewed by trained interviewers using a standardized questionnaire. Data analysis included a hierarchical approach to control for confounding, using conditional logistic regression. Comparison of the three groups aimed to identify risk factors for diarrhea complicated by dehydration, prognostic factors for dehydration, and risk factors for mild diarrhea. Low birth weight, stunting, and lack or breastfeeding acted simultaneously as risk and prognostic factors for diarrhea.O objetivo deste estudo foi examinar o efeito de variáveis demográficas, sócio-econômicas, ambientais, reprodutivas maternas, dietéticas e nutricionais sobre o risco e o prognóstico de diarréia usando análise hierarquizada. Um estudo de caso-controle incluindo crianças entre 0-23 meses de idade, residentes na área metropolitana de Porto Alegre, foi realizado durante os meses de verão de 1987-88. Investigaram-se três grupos de 192 crianças, incluindo as hospitalizadas com um episódio agudo de diarréia e desidratação moderada a grave; as crianças com diarréia aguda leve e sem desidratação, identificadas na vizinhança dos casos, assim como crianças sem diarréia. Entrevistas padronizadas foram

  8. Monte Carlo principles and applications

    Energy Technology Data Exchange (ETDEWEB)

    Raeside, D E [Oklahoma Univ., Oklahoma City (USA). Health Sciences Center

    1976-03-01

    The principles underlying the use of Monte Carlo methods are explained, for readers who may not be familiar with the approach. The generation of random numbers is discussed, and the connection between Monte Carlo methods and random numbers is indicated. Outlines of two well established Monte Carlo sampling techniques are given, together with examples illustrating their use. The general techniques for improving the efficiency of Monte Carlo calculations are considered. The literature relevant to the applications of Monte Carlo calculations in medical physics is reviewed.

  9. Epidemiological study of facial fractures at the Oral and Maxillofacial Surgery Service, Santa Casa de Misericordia Hospital Complex, Porto Alegre - RS - Brazil

    OpenAIRE

    Zamboni, Rodrigo Andrighetti; Wagner, João Carlos Birnfeld; Volkweis, Maurício Roth; Gerhardt, Eduardo Luis; Buchmann, Elissa Muller; Bavaresco, Caren Serra

    2017-01-01

    ABSTRACT Objectives: to investigate the incidence and etiology of face trauma with diagnosis of facial fracture treated at the Buccomaxillofacial Surgery and Traumatology Service of the Santa Casa de Misericórdia Hospital Complex in Porto Alegre. Methods: we conducted a cross-sectional, retrospective epidemiological study of 134 trauma victims with 153 facial fractures. Results: the male gender was the most affected (86.6%) and the incidence was higher in the age group from 21 to 30 yea...

  10. Os intelectuais e a defesa da preservação do patrimônio em Porto Alegre (1970)

    OpenAIRE

    Maria Angélica Zubaran

    2017-01-01

    Este estudo analisa as narrativas em defesa da preservação e salvaguarda do patrimônio histórico da cidade de Porto Alegre na imprensa local, na década de 1970. Investiga-se o discurso dos "intelectuais do patrimônio" e os novos valores, significados e usos que atribuíram ao patrimônio histórico da cidade, na luta pela sua preservação e salvaguarda. O foco deste artigo é as narrativas do jornalista Alberto André e do historiador Sérgio da Costa Franco e suas múltiplas representações de memóri...

  11. 11th International Conference on Monte Carlo and Quasi-Monte Carlo Methods in Scientific Computing

    CERN Document Server

    Nuyens, Dirk

    2016-01-01

    This book presents the refereed proceedings of the Eleventh International Conference on Monte Carlo and Quasi-Monte Carlo Methods in Scientific Computing that was held at the University of Leuven (Belgium) in April 2014. These biennial conferences are major events for Monte Carlo and quasi-Monte Carlo researchers. The proceedings include articles based on invited lectures as well as carefully selected contributed papers on all theoretical aspects and applications of Monte Carlo and quasi-Monte Carlo methods. Offering information on the latest developments in these very active areas, this book is an excellent reference resource for theoreticians and practitioners interested in solving high-dimensional computational problems, arising, in particular, in finance, statistics and computer graphics.

  12. Filosofia naturale della causalità e del caso

    CERN Document Server

    Born, Max

    1962-01-01

    Introduzione ; causalità e determinismo ; esemplificazione : l'astronomia e la meccanica delle particelle ; contiguità ; principio di antecedenza e termodinamica ; caso ; caso e antecedenza ; materia ; caso ; conclusioni metafisiche.

  13. Perfil clinicopatológico dos pacientes com pioderma gangrenoso do Hospital das Clínicas de Porto Alegre (RS - Brasil (2000-2006 Clinic and pathological profile of the patients with pyoderma gangrenosum at Hospital de Clínicas de Porto Alegre (RS - Brazil (2000-2006

    Directory of Open Access Journals (Sweden)

    Mariana Tremel Barbato

    2008-10-01

    Full Text Available FUNDAMENTOS: O pioderma gangrenoso é doença neutrofílica pouco freqüente. Caracteriza-se por lesões cutâneas ulceradas, dolorosas, com bordas subminadas e violáceas. Os membros inferiores configuram o local mais acometido. Sua etiologia é incerta, mas em 50% dos casos encontra-se associação com outras doenças. A histopatologia é inespecífica, e o diagnóstico, essencialmente clínico. OBJETIVO: Avaliar o perfil clinicopatológico de pacientes com pioderma gangrenoso. MÉTODO: Estudo retrospectivo dos pacientes diagnosticados no período de 2000 a 2006 no Serviço de Dermatologia do Hospital de Clínicas de Porto Alegre. RESULTADOS: Foram observados 16 pacientes cuja idade média foi 49 anos, com predomínio do sexo feminino (62,5%. O período médio entre início da doença e diagnóstico foi de 1,6 ano. A forma clínica predominante foi a ulcerativa (81,25%, e 87,5% das lesões localizavam-se nos membros inferiores. O sintoma mais freqüentemente associado foi dor local (37,5%. Doze pacientes (66% apresentaram doenças sistêmicas concomitantes. Doença de Crohn, diabetes e colagenoses foram as principais comorbidades encontradas. O tratamento mais utilizado foi a corticoterapia sistêmica, associada ou não a outros medicamentos (50%, tendo 43,75% dos pacientes apresentado recidiva do quadro. CONCLUSÕES: Os dados avaliados condizem com os encontrados na literatura. As doenças associadas mais prevalentes foram ileíte regional, diabetes melitus e afecções do tecido conectivo. O tratamento mais utilizado incluiu corticoterapia sistêmica. A maioria dos pacientes apresentou cicatrização completa , porém o número de recidivas foi elevado.BACKGROUND: Pyoderma gangrenosum is an infrequent neutrophilic dermatosis. It presents more frequently with painful cutaneous ulcers, with undermined violaceous borders. The legs are most commonly affected. Etiology is uncertain, although there is an association with other diseases in 50% of

  14. Bioanalysis young investigator: Maria Rambla-Alegre.

    Science.gov (United States)

    Rambla-Alegre, Maria

    2012-06-01

    Maria Rambla-Alegre obtained the European doctorate in March 2011, with the maximum qualification: Excellent "Cum Laude", and has already published 33 articles in reputable scientific journals, presented 61 communications in international symposia, participated in nine research projects, as well as received several awards since 2006. Nowadays, Maria is contracted at Ghent University (Belgium) where she is completing a post-doc. During the time I have known her, I have frequently been impressed by her exceptional capabilities to quickly learn new skills to develop and validate new liquid chromatographic procedures, and by her constant initiative to bring together innovative analytical methods. Maria has always adopted a positive, critical view and shows eagerness to better herself. Besides her exceptional knowledge in LC, she has a sound scientific background in capillary electrophoresis, GC, sample preparation and optimization procedures that allows her to complement her investigations and has resulted in significant papers in the analytical chemistry field. Our research group has greatly benefited from Maria's capabilities, as can be seen in recent publications in the Journal of Chromatography A, Talanta, Analytical and Bioanalytical Chemistry and other specialized journals that directly represent her work, mainly as corresponding author. It is extremely remarkable that she has published a review of her PhD results. Not everyone has the possibility to publish it. This is a clear sign of the high quality of her research. Compared to other fellows that I have supervised, Maria is undoubtedly the best one. I can, beyond all doubt, give a score of 10/10 to the quality of her research activity. Finally, I would personally like to add that she is an outstanding, serious, independent thinker who is always well informed about the topics she tackles. Maria is also very friendly, a good worker and always willing to help others, which has been a most positive characteristic

  15. Helminthiases in Montes Claros. Preliminary survey

    Directory of Open Access Journals (Sweden)

    Rina Girard Kaminsky

    1976-04-01

    Full Text Available A preliminary survey was conducted for the presence of helminths in the city of Montes Claros, M. G., Brazil. Three groups of persons were examined by the direct smear, Kato thick film and MIFC techniques; one group by direct smear and Kato only. General findings were: a high prevalence of hookworm, followed by ascariasis, S. mansoni, S. stercoralis and very light infections with T. trichiurá. E. vermicularis and H. nana were ranking parasites at an orphanage, with some hookworm and S. mansoni infections as well. At a pig slaughter house, the dominant parasites were hookworm and S. mansoni. Pig cysticercosis was an incidental finding worth mentioning for the health hazard it represents for humans as well as an economic loss. From the comparative results between the Kato and the MIF the former proved itself again as a more sensitive and reliable concentration method for helminth eggs, of low cost and easy performance.Um estudo preliminar sobre helmintos foi feito na cidade de Montes Claros, MG, Brasil. Três grupos de pessoas foram examinados pelos métodos direto, de Kato e do MIF e um grupo pelos métodos direto e Kato exclusivamente. Encontrou-se uma alta prevalência de necatorose, seguindo-se ascaríase, S. mansoni, S. stercoralis, e infecções leves pelo T. trichiura. E. vermicularis e H. nana foram osparasitos mais prevalentes num orfanato, com alguns casos de infecção pelo Necator e S. mansoni. Cisticercose dos suinos foi achado incidental e é importante ser mencionada devido ao perigo que representa no plano da Saúde Pública, bem como pela perda econômica que produz. Discutiu-se brevemente a importância do solo na transmissão dos helmintos num clima quente e seco. Da comparação dos métodos de Kato e MIF, o primeiro demonstrou ser o método mais sensível para ovos de helmintos, de baixo custo e fácil preparo.

  16. Quando os diásporos são vestígios: estudo de caso no sul do Brasil

    Directory of Open Access Journals (Sweden)

    Evandro Gomes Da Silva

    2017-05-01

    Full Text Available Um cadáver humano com sinais de violência física foi retirado das águas do Lago Guaíba, próximo à zona portuária do cais central em Porto Alegre. A vítima trouxe, aderidos às vestes, vestígios de vegetais terrestres, entre outros achados de interesse criminalístico. O exame mais apurado do material vegetal revelou tratar-se de um tipo de “pega-pega” e outra espécie de “carrapicho”, ambos aderidos na face externa do terço superior das calças. Tais estruturas eram pequenos frutos secos, que possuem cerdas ou ganchos utilizados para adesão aos pelos de animais, ou, eventualmente, ao tecido das roupas humanas. Algumas plantas apresentam tal estratégia para disseminação de suas sementes, chamada de dispersão epizoocórica. Conhecendo tal mecanismo de propagação das plantas que geram diásporos, o endemismo e tendo dados de ocorrência das espécies identificadas, poderíamos inferir onde teria sido o local original de violência contra a vítima, que foi localizada boiando no canal de navegação do Guaíba. Elaborado a partir de um caso real, conhecimento taxonômico e pesquisa bibliográfica, o presente trabalho busca dar subsídios para o reconhecimento de diferentes espécies de plantas produtoras de diásporos no âmbito forense, relacionando a identificação da espécie à zona de distribuição e de ocorrência. O caso estudado destaca a epizoocoria no contexto da botânica forense, além disso, salienta a imprescindível interação de peritos criminais com botânicos taxonomistas na correta identificação dos vestígios, para que tais conhecimentos possam servir como mais uma ferramenta na elucidação de crimes.

  17. Análise da expansão urbana em áreas suscetíveis à inundação utilizando o Modelo HAND: o caso da Região Metropolitana de Porto Alegre, Brasil

    Directory of Open Access Journals (Sweden)

    Vagner Mengue

    2017-12-01

    Full Text Available O objetivo deste trabalho é contribuir para avançar no conhecimento acerca do potencial do Modelo HAND para avaliação e monitoramento da expansão urbana da Região Metropolitana de Porto Alegre (RMPA em áreas suscetíveis à inundação. Como procedimento metodológico foi utilizada a combinação de imagens de iluminação noturna com índices de vegetação NDVI do satélite Landsat. Para identificar as áreas suscetíveis à inundação, foi utilizado o Modelo HAND. Foi identificado um aumento de 22,15% da área urbana ocupada entre os anos 1985 e 2015. Com o Modelo HAND foi possível identificar que as novas ocupações urbanas estão situadas em cotas de até 2 metros de elevação em relação à drenagem mais próxima. Este dado evidencia que áreas identificadas como de expansão estão localizadas em cidades problemáticas do ponto de vista de inundações.

  18. [Femicide in Porto Alegre, Rio Grande do Sul State, Brazil: gender iniquities in dying].

    Science.gov (United States)

    Meneghel, Stela Nazareth; Margarites, Ane Freitas

    2017-12-18

    Femicide is the murder of women as the result of gender inequalities. It is the most extreme form of violence against women. The theoretical and methodological frame of reference used in this study was patriarchy theory and critical discourse analysis. We analyzed the discourses from 64 police inquiries categorized as femicides in Porto Alegre, Rio Grande do Sul State, Brazil, from 2006 to 2010. The victims were mostly poor young women living in outlying areas of the city with high rates of prostitution and women murdered by the drug traffic, deaths not routinely classified as femicides by the police. Many inquiries were shelved for purported lack of evidence, and many other cases were not even started. The discourse in the police reports often demeaned and blamed the victims, although some criticized the inequalities between men and women and identified the lethal effects of male chauvinism. Police inquiries are important sources for studying femicide in society, adding abundant information on the crimes' victims, perpetrators, and scenarios.

  19. CASO AlbAm S.A.

    Directory of Open Access Journals (Sweden)

    Ricardo Goulart Serra

    2015-12-01

    Full Text Available RESUMO Os analistas financeiros da AlbAm, uma empresa do setor de autopeças, devem avaliar duas opções de aquisições (Cardblue e Garciadores. O objetivo do caso é servir de oportunidade para os alunos vivenciarem uma decisão de investimentos por meio do lucro econômico. Uma análise superficial certamente levará a decisão equivocada. Levando-se todos os aspectos do caso em consideração, chegar-se-á a uma solução que pode surpreender alguns alunos, uma vez que a empresa melhor gerida não será a melhor oportunidade de investimento. Também se pode aproveitar o caso para discutir a superficialidade da adoção do EBITDA como métrica de gestão comparativamente a uma métrica de valor agregado (lucro econômico - a melhor solução também não é aquela que gera o maior aumento em EBITDA. O caso pode ser usado em disciplinas de finanças (finanças corporativas ou avaliação de empresas em cursos de graduação, pós-graduação ou especialização. Todas as empresas e pessoas relatadas neste caso são fictícias.

  20. A implementação dos ciclos de formação em Porto Alegre: para além de uma discussão do espaço-tempo escolar

    Directory of Open Access Journals (Sweden)

    Andréa Rosana Fetzner

    2009-01-01

    Full Text Available El artículo propone una reflexión sobre las condiciones en que los ciclos de formación se llevaron a cabo en la red municipal de educación en Porto Alegre. Se sitúan las relaciones entre la sociedad y la cultura escolar, presentando la génesis del concepto de ciclos, con referencia a los estudios de Vygotsky y Wallon; se retoman algunas propuestas educacionales consideradas inéditas viables en la educación brasileña, tales como la Escuela Primaria Integral y la educación popular; y, al final, se presentan algunas situaciones específicas de Porto Alegre en relación con otras propuestas de ciclos contemporáneos. El concepto de cultura escolar se centra en el análisis de las prácticas e indica la transición de procesos escolares conservadores hacia procesos democratizantes.

  1. The Hemiptera type-material housed in the "Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul" of Porto Alegre, Brazil.

    Science.gov (United States)

    Ruschel, Tatiana Petersen; Guidoti, Marcus; Barcellos, Aline

    2013-01-01

    We provide a commented and referenced list on the type material deposited in the "Museu de Ciencias Naturais, Fundação Zoobotânica do Rio Grande do Sul", Porto Alegre, Brazil. Geographic coordinates are available on a digital repository for free access. High-resolution images of the specimens are available under request.

  2. Prescrições de medicamentos em Unidade de Cuidados Paliativos de um hospital universitário de Porto Alegre

    Directory of Open Access Journals (Sweden)

    Ester Duk Schwarz

    2016-05-01

    Full Text Available Introdução: Em menos de 40 anos, o Brasil passou de um perfil de mortalidade típico de uma população jovem para um perfil caracterizado por enfermidades complexas e mais onerosas, próprias das faixas etárias mais avançadas. O controle dos sintomas de pacientes em cuidados paliativos pode melhorar a qualidade de vida desses indivíduos e até mesmo de suas famílias. A utilização de medicamentos adequados para a terapia desses pacientes é fundamental para o sucesso do tratamento, que nesse caso é o controle adequado dos sintomas. O objetivo principal do trabalho foi descrever o perfil de utilização de medicamentos em pacientes em cuidados paliativos internados no Hospital de Clínicas de Porto Alegre (HCPA. Métodos: O presente estudo descritivo, exploratório tem por objetivo determinar o perfil de uma amostra de 30 pacientes internados na unidade de cuidados paliativos do HCPA com enfoque na utilização de medicamentos e também nas características demográficas e clinicas e o desfecho clínico dos pacientes. Resultados: As prescrições levantadas totalizaram 76 medicamentos diferentes; dentre estes, os mais prescritos foram morfina, dipirona, lactulose, heparina, metoclopramida, paracetamol, cloreto de sódio, ondansetron, ipratróprio, dexametasona e omeprazol. Com a possibilidade de acúmulo de patologias crônicas, a polifarmácia é inevitável. A avaliação do uso dos fármacos torna-se de grande importância para que se garanta a segurança do paciente em cuidado paliativo e o uso racional de medicamentos. Conclusão: A construção metodológica deste estudo possibilitou descrever o perfil da população de interesse, além de gerar conhecimento sobre os medicamentos utilizados na unidade de cuidados paliativos e sobre variáveis demográficas e clínicas de pacientes internados nessa unidade. Palavras chave: Cuidados paliativos; assistência farmacêutica; preparações farmacêuticas

  3. Implementation of procedures of radiological protection in the section of Radiology of the emergency Hospital of Porto Alegre-Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Lorenzini, F.; Rizzati, M.R. [Emergency Hospital of Porto Alegre, HPS (Brazil)

    1998-12-31

    The Emergency Hospital of Porto Alegre (HPS) is one of the main reference centers for the population in the attendance of medical emergencies/urgencies. The Section of Radiology, which informs the patients clinical conditions based on radiological images, is the most demanded section of the hospital (81.43 % of the medical cases request radiological exams) in the aid of the diagnosis, in which excels for the search of the quality in the health branch. In this work are presented the procedures to have been implemented about radiological protection according to effective norm, methods, ways and conditions to satisfy the radiation workers and the internal and external patients. (Author)

  4. Implementation of procedures of radiological protection in the section of Radiology of the emergency Hospital of Porto Alegre-Brazil

    International Nuclear Information System (INIS)

    Lorenzini, F.; Rizzati, M.R.

    1998-01-01

    The Emergency Hospital of Porto Alegre (HPS) is one of the main reference centers for the population in the attendance of medical emergencies/urgencies. The Section of Radiology, which informs the patients clinical conditions based on radiological images, is the most demanded section of the hospital (81.43 % of the medical cases request radiological exams) in the aid of the diagnosis, in which excels for the search of the quality in the health branch. In this work are presented the procedures to have been implemented about radiological protection according to effective norm, methods, ways and conditions to satisfy the radiation workers and the internal and external patients. (Author)

  5. Pulmonary tuberculosis treatment regimen recommended by the Brazilian National Ministry of Health: predictors of treatment noncompliance in the city of Porto Alegre, Brazil.

    Science.gov (United States)

    Campani, Simone Teresinha Aloise; Moreira, José da Silva; Tietbohel, Carlos Nunes

    2011-01-01

    To determine the predictors of noncompliance with the pulmonary tuberculosis treatment regimen recommended by the Brazilian National Ministry of Health, in previously treatment-naïve patients with active tuberculosis treated in the city of Porto Alegre, Brazil. This was a case-control study involving six referral primary health care clinics for tuberculosis in Porto Alegre. We reviewed the medical charts of all previously treatment-naïve patients with active pulmonary tuberculosis who were noncompliant with the treatment between 2004 and 2006. Those were paired with other patients having similar characteristics and having been cured. We conducted univariate and multivariate analyses. Of the 2,098 patients included, 218 (10.4%) became noncompliant with the treatment. In the multivariate analysis, the factors most strongly associated with treatment noncompliance were being an alcoholic (with or without concomitant use of illicit drugs), being HIV-infected, not residing with family members, and having a low level of education. In the univariate analysis, treatment noncompliance was also significantly associated with being younger and with being non-White. Gender was not significantly associated with treatment noncompliance; nor was the occurrence of adverse effects of the drugs included in the regimen. In the population studied, being an alcoholic, being HIV-infected, and not residing with family members were the major predictors of noncompliance with treatment for pulmonary tuberculosis among previously treatment-naïve patients.

  6. On the use of stochastic approximation Monte Carlo for Monte Carlo integration

    KAUST Repository

    Liang, Faming

    2009-03-01

    The stochastic approximation Monte Carlo (SAMC) algorithm has recently been proposed as a dynamic optimization algorithm in the literature. In this paper, we show in theory that the samples generated by SAMC can be used for Monte Carlo integration via a dynamically weighted estimator by calling some results from the literature of nonhomogeneous Markov chains. Our numerical results indicate that SAMC can yield significant savings over conventional Monte Carlo algorithms, such as the Metropolis-Hastings algorithm, for the problems for which the energy landscape is rugged. © 2008 Elsevier B.V. All rights reserved.

  7. On the use of stochastic approximation Monte Carlo for Monte Carlo integration

    KAUST Repository

    Liang, Faming

    2009-01-01

    The stochastic approximation Monte Carlo (SAMC) algorithm has recently been proposed as a dynamic optimization algorithm in the literature. In this paper, we show in theory that the samples generated by SAMC can be used for Monte Carlo integration

  8. Caracterização do consumidor de carne de frango da cidade de Porto Alegre Characterization of the chicken meat consumer of Porto Alegre, RS, Brazil

    Directory of Open Access Journals (Sweden)

    Dione Carina Francisco

    2007-02-01

    Full Text Available A preocupação com a segurança alimentar tem mudado a forma como os consumidores vêem os produtos cárneos, fazendo com que busquem informações sobre os alimentos que consomem. Neste sentido, esta pesquisa teve como objetivo caracterizar o consumidor porto-alegrense de carne de frango. Foram entrevistados 393 consumidores durante o período de abril a julho de 2004. Os resultados demonstram que a carne de frango é a segunda carne preferida dos consumidores e que os cortes e empanados de frango são os produtos mais consumidos. Os consumidores acreditam que a gripe do frango e a salmonelose são as principais doenças veiculadas por esta carne.The concern with the alimentary security has changed the form as the consumers see the meaty products; searching information on the foods that consume. In this direction, this research was aimed at characterizing the chicken meat consumer of Porto Alegre, Brazil. They had been interviewed 393 consumers during the period of April the July of 2004. The results demonstrate that the chicken meat is the second preferred meat of the consumers, and that the empanados cuts and of chicken are the most consumed products. The consumers believe that the bird flu and salmonelose are the main illnesses propagated by this meat.

  9. Competência social infantil: análise discriminante entre crianças imigrantes e não imigrantes no contexto escolar de Porto Alegre Children’s social competence: discriminant analysis among immigrant and nonimmigrant children at the educational context of Porto Alegre (Brazil

    Directory of Open Access Journals (Sweden)

    Adolfo Pizzinato

    2003-12-01

    Full Text Available O presente estudo visa identificar como crianças imigrantes são diferenciadas de seus pares não imigrantes, no tocante à competência social, em escolas públicas e privadas de Porto Alegre. Após tradução, adaptação e análises de fidedignidade e validade do instrumento Revised Class Play, foi aplicado em 32 crianças imigrantes de diferentes países residentes e estudando em classes regulares, assim como em seus colegas de classe (543, perfazendo um total de 575 crianças participantes. Ao instrumento foram adicionadas perguntas de cunho sociodemográfico, a fim de melhor descrever o perfil dos grupos. Os dados da análise indicam haver uma percepção do grupo imigrante como mais isolado; menos agressivo e menos sociável, por parte de seus pares não imigrantes. Tais dados contrastam com a percepção de sociabilidade por parte dos próprios imigrantes.The present study aims to identify how immigrant children differ from their non-immigrant peers, concerning social competence, on public and private schools of Porto Alegre (Brazil. After translation, adaptation and reliability analysis of the instrument Revised Class Play, was applied on 32 immigrant children from different countries, who were living and studying on regular classes, as well as their classmates (a total of 575 participant children. At the instrument social-demographical questions were added, with the objective of better describe the group’s profile. The data indicates a perception that the immigrant children were more isolated, less aggressive and less sociable than their nonimmigrant peers. Such data contrasts with the perception of sociability that the immigrant children had about themselves.

  10. Vectorized Monte Carlo

    International Nuclear Information System (INIS)

    Brown, F.B.

    1981-01-01

    Examination of the global algorithms and local kernels of conventional general-purpose Monte Carlo codes shows that multigroup Monte Carlo methods have sufficient structure to permit efficient vectorization. A structured multigroup Monte Carlo algorithm for vector computers is developed in which many particle events are treated at once on a cell-by-cell basis. Vectorization of kernels for tracking and variance reduction is described, and a new method for discrete sampling is developed to facilitate the vectorization of collision analysis. To demonstrate the potential of the new method, a vectorized Monte Carlo code for multigroup radiation transport analysis was developed. This code incorporates many features of conventional general-purpose production codes, including general geometry, splitting and Russian roulette, survival biasing, variance estimation via batching, a number of cutoffs, and generalized tallies of collision, tracklength, and surface crossing estimators with response functions. Predictions of vectorized performance characteristics for the CYBER-205 were made using emulated coding and a dynamic model of vector instruction timing. Computation rates were examined for a variety of test problems to determine sensitivities to batch size and vector lengths. Significant speedups are predicted for even a few hundred particles per batch, and asymptotic speedups by about 40 over equivalent Amdahl 470V/8 scalar codes arepredicted for a few thousand particles per batch. The principal conclusion is that vectorization of a general-purpose multigroup Monte Carlo code is well worth the significant effort required for stylized coding and major algorithmic changes

  11. Paleoenvironmental and Paleoecological Reconstruction of the Ancient Maya Port Site of Vista Alegre, Quintana Roo, Mexico

    Science.gov (United States)

    Rissolo, D.; Jaijel, R.; Glover, J. B.; Goodman, B.; Beddows, P. A.; Carter, A.; Smith, D.

    2013-12-01

    Ancient Maya ports along the largely unstudied northeast coast of the Yucatan Peninsula once supported a network of trade routes linking people, goods, and ideas from across Mesoamerica. The Costa Escondida Project has focused on the interrelationships between the ancient Maya and their dynamic coastal environment along the shores of the Laguna Holbox. Central to our interdisciplinary efforts is a paleoenvironmental and paleoecological reconstruction of the key port of Vista Alegre - a low-lying island surrounded by a complex mosaic of costal ecosystems, sedimentological facies, and hydrological conditions. Geoarchaeological field methods, such as sediment coring, have made possible multiproxy analyses that enable us to better understand sea level fluctuations and the morphology of the shoreline and harboring locations over time, as well as changes in ecosystem biodiversity, which would have presented the maritime Maya with unique challenges and opportunities.

  12. Adjoint electron Monte Carlo calculations

    International Nuclear Information System (INIS)

    Jordan, T.M.

    1986-01-01

    Adjoint Monte Carlo is the most efficient method for accurate analysis of space systems exposed to natural and artificially enhanced electron environments. Recent adjoint calculations for isotropic electron environments include: comparative data for experimental measurements on electronics boxes; benchmark problem solutions for comparing total dose prediction methodologies; preliminary assessment of sectoring methods used during space system design; and total dose predictions on an electronics package. Adjoint Monte Carlo, forward Monte Carlo, and experiment are in excellent agreement for electron sources that simulate space environments. For electron space environments, adjoint Monte Carlo is clearly superior to forward Monte Carlo, requiring one to two orders of magnitude less computer time for relatively simple geometries. The solid-angle sectoring approximations used for routine design calculations can err by more than a factor of 2 on dose in simple shield geometries. For critical space systems exposed to severe electron environments, these potential sectoring errors demand the establishment of large design margins and/or verification of shield design by adjoint Monte Carlo/experiment

  13. Monte Carlo: Basics

    OpenAIRE

    Murthy, K. P. N.

    2001-01-01

    An introduction to the basics of Monte Carlo is given. The topics covered include, sample space, events, probabilities, random variables, mean, variance, covariance, characteristic function, chebyshev inequality, law of large numbers, central limit theorem (stable distribution, Levy distribution), random numbers (generation and testing), random sampling techniques (inversion, rejection, sampling from a Gaussian, Metropolis sampling), analogue Monte Carlo and Importance sampling (exponential b...

  14. Redemocratização e espaço público em Porto Alegre: o projeto espaço urbano espaço arte

    OpenAIRE

    José Francisco Alves

    2012-01-01

    The article discusses the public art project Urban Space / Art Space, that was carried out in the city of Porto Alegre following the democratization of the country, with the return of democractic elections for mayor of the state capitals in 1985. The characteristic that marked the public art in the capital of Rio Grande do Sul, with the democratization of the country, was the presence of contemporary art in the urban space, by open calls to artists, in order to provide the urban landscape ...

  15. MORSE Monte Carlo code

    International Nuclear Information System (INIS)

    Cramer, S.N.

    1984-01-01

    The MORSE code is a large general-use multigroup Monte Carlo code system. Although no claims can be made regarding its superiority in either theoretical details or Monte Carlo techniques, MORSE has been, since its inception at ORNL in the late 1960s, the most widely used Monte Carlo radiation transport code. The principal reason for this popularity is that MORSE is relatively easy to use, independent of any installation or distribution center, and it can be easily customized to fit almost any specific need. Features of the MORSE code are described

  16. Sentido das mudanças: economia criativa e implicações sociais em Porto Alegre

    Directory of Open Access Journals (Sweden)

    Sandro Ruduit Garcia

    2017-01-01

    Full Text Available Creative economy has been the subject of a recent and successful academic production of different specialties in different countries, recording social, political and cultural changes involved in it. This article addresses the sense of the changes, recognized in international experience, in our context, centrally inquiring about: what kind of social implications takes place due to the growth of activities in companies in the sectors of creative economy? It starts from the recognition that economic action finds itself immersed in a set of mechanisms of social mediation. Data were obtained on a purposeful sample of fourteen small enterprises belonging to this economy in the city of Porto Alegre, complementing with documentary sources. The study suggests that this type of business tends to be guided by the pursuit of novelty, complementarity of knowledge, professional autonomy and responsibility with the environment, within the limits of the social and institutional conditions in which they take part.

  17. Monte Carlo theory and practice

    International Nuclear Information System (INIS)

    James, F.

    1987-01-01

    Historically, the first large-scale calculations to make use of the Monte Carlo method were studies of neutron scattering and absorption, random processes for which it is quite natural to employ random numbers. Such calculations, a subset of Monte Carlo calculations, are known as direct simulation, since the 'hypothetical population' of the narrower definition above corresponds directly to the real population being studied. The Monte Carlo method may be applied wherever it is possible to establish equivalence between the desired result and the expected behaviour of a stochastic system. The problem to be solved may already be of a probabilistic or statistical nature, in which case its Monte Carlo formulation will usually be a straightforward simulation, or it may be of a deterministic or analytic nature, in which case an appropriate Monte Carlo formulation may require some imagination and may appear contrived or artificial. In any case, the suitability of the method chosen will depend on its mathematical properties and not on its superficial resemblance to the problem to be solved. The authors show how Monte Carlo techniques may be compared with other methods of solution of the same physical problem

  18. Climatologia Sazonal dos Jatos de Baixos Níveis na Região Metropolitana de Porto Alegre, no Período de 1989 a 2003, Utilizando Dados de Radiossondagens.

    Directory of Open Access Journals (Sweden)

    Cláudia Rejane Jacondino de Campos

    2007-08-01

    Full Text Available The aim of this work was to develop a climatology observational study of the Low-Level Jet (LLJ, observed atPorto Alegre-RS-Brazil metropolitan region, using 1989-2003 at 00:00 and 12:00 UTC upper-air observations, from PortoAlegre International Airpot station. The LLJ classification criteria proposed by Bonner (1968 and modified by Whitemanet al. (1997 were applied to determine the LLJ occurrence. Afterwards the LLJ selected were separated by season (autumn,winter, spring and summer and then were classified according to: i LLJ intensity, ii more frequent height of LLJoccurrence and iii LLJ predominant direction. The results showed that the LLJ have been more frequent in spring (12:00UTC and in summer (00:00 UTC. Mostly of them presented velocity between 10 and 16 m s-1, and seems to occur indistinct heights depending on the time (at 00:00UTC in 600 m and at 12:00 UTC in 900 m. The LLJ predominant directionshowed that at 00:00 UTC, the LLJ were more frequent in the east quadrant, while at 12:00 UTC, this predominancewas verified in the west and north quadrants.

  19. Monte Carlo Methods in Physics

    International Nuclear Information System (INIS)

    Santoso, B.

    1997-01-01

    Method of Monte Carlo integration is reviewed briefly and some of its applications in physics are explained. A numerical experiment on random generators used in the monte Carlo techniques is carried out to show the behavior of the randomness of various methods in generating them. To account for the weight function involved in the Monte Carlo, the metropolis method is used. From the results of the experiment, one can see that there is no regular patterns of the numbers generated, showing that the program generators are reasonably good, while the experimental results, shows a statistical distribution obeying statistical distribution law. Further some applications of the Monte Carlo methods in physics are given. The choice of physical problems are such that the models have available solutions either in exact or approximate values, in which comparisons can be mode, with the calculations using the Monte Carlo method. Comparison show that for the models to be considered, good agreement have been obtained

  20. Monte Carlo techniques in radiation therapy

    CERN Document Server

    Verhaegen, Frank

    2013-01-01

    Modern cancer treatment relies on Monte Carlo simulations to help radiotherapists and clinical physicists better understand and compute radiation dose from imaging devices as well as exploit four-dimensional imaging data. With Monte Carlo-based treatment planning tools now available from commercial vendors, a complete transition to Monte Carlo-based dose calculation methods in radiotherapy could likely take place in the next decade. Monte Carlo Techniques in Radiation Therapy explores the use of Monte Carlo methods for modeling various features of internal and external radiation sources, including light ion beams. The book-the first of its kind-addresses applications of the Monte Carlo particle transport simulation technique in radiation therapy, mainly focusing on external beam radiotherapy and brachytherapy. It presents the mathematical and technical aspects of the methods in particle transport simulations. The book also discusses the modeling of medical linacs and other irradiation devices; issues specific...

  1. Statistical implications in Monte Carlo depletions - 051

    International Nuclear Information System (INIS)

    Zhiwen, Xu; Rhodes, J.; Smith, K.

    2010-01-01

    As a result of steady advances of computer power, continuous-energy Monte Carlo depletion analysis is attracting considerable attention for reactor burnup calculations. The typical Monte Carlo analysis is set up as a combination of a Monte Carlo neutron transport solver and a fuel burnup solver. Note that the burnup solver is a deterministic module. The statistical errors in Monte Carlo solutions are introduced into nuclide number densities and propagated along fuel burnup. This paper is towards the understanding of the statistical implications in Monte Carlo depletions, including both statistical bias and statistical variations in depleted fuel number densities. The deterministic Studsvik lattice physics code, CASMO-5, is modified to model the Monte Carlo depletion. The statistical bias in depleted number densities is found to be negligible compared to its statistical variations, which, in turn, demonstrates the correctness of the Monte Carlo depletion method. Meanwhile, the statistical variation in number densities generally increases with burnup. Several possible ways of reducing the statistical errors are discussed: 1) to increase the number of individual Monte Carlo histories; 2) to increase the number of time steps; 3) to run additional independent Monte Carlo depletion cases. Finally, a new Monte Carlo depletion methodology, called the batch depletion method, is proposed, which consists of performing a set of independent Monte Carlo depletions and is thus capable of estimating the overall statistical errors including both the local statistical error and the propagated statistical error. (authors)

  2. Monte Carlo simulation for IRRMA

    International Nuclear Information System (INIS)

    Gardner, R.P.; Liu Lianyan

    2000-01-01

    Monte Carlo simulation is fast becoming a standard approach for many radiation applications that were previously treated almost entirely by experimental techniques. This is certainly true for Industrial Radiation and Radioisotope Measurement Applications - IRRMA. The reasons for this include: (1) the increased cost and inadequacy of experimentation for design and interpretation purposes; (2) the availability of low cost, large memory, and fast personal computers; and (3) the general availability of general purpose Monte Carlo codes that are increasingly user-friendly, efficient, and accurate. This paper discusses the history and present status of Monte Carlo simulation for IRRMA including the general purpose (GP) and specific purpose (SP) Monte Carlo codes and future needs - primarily from the experience of the authors

  3. Desejo de mudança: das motivações e razões que levaram à derrota do PT em Porto Alegre nas eleições de 2004 = Desire for change: the motives and reasons behind the defeat of the PT in Porto Alegre in the 2004 elections

    Directory of Open Access Journals (Sweden)

    Dias, Marcia Ribeiro

    2008-01-01

    Full Text Available O objetivo do artigo é avaliar em que medida o orçamento participativo influenciava a decisão eleitoral em Porto Alegre até 2004, último ano de governo do partido dos trabalhadores (PT naquele municiípio. Com base em dados de um survey aplicado em 3 de outubro de 2004, o artigo fez uma radiografia do eleitor naquele momento de transição, procurando investigar as razões de sua escolha eleitoral e sua percepção acerca do mecanismo essencial dos governos petistas na capital do Rio Grande do Sul: o orçamento participativo

  4. Extraction of vanadium from campo Alegre de Lourdes (BA, Brazil) Fe-Ti-V ore by partial reduction/magnetic concentration/salt roasting/hot water leaching

    International Nuclear Information System (INIS)

    Alcantara, E.M.; Ogasawara, T.; Silva, F.T. da; Fontes, E.F.

    1988-01-01

    A process under development at COPPE/UFRJ to rocover vanadium from a titaniferous magnetite type ore from Campo Alegre de Lourdes (Bahia, Brazil), throxgh magnetizing roasting/magnetic concentration/ salt roasting/hot water leaching, is described. The results of the experimental work carried cut up to present are in qualitative agrement with those of othar studies on salt roasting/water leaching of titaniferous magnetites. Is is discussed the existing relationship between the maximum percentags of vanadium extraction in the leaching and the salt roasting conditions. (author) [pt

  5. Pesquisa de Acinetobacter sp e Pseudomonas aeruginosa produtores de metalo-β-lactamase em hospital de emergência de Porto Alegre, Estado do Rio Grande do Sul, Brasil Investigation of metallo-β-lactamase-producing Acinetobacter sp and Pseudomonas aeruginosa at an emergency hospital in Porto Alegre, State of Rio Grande do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Vani Dos Santos Laranjeira

    2010-08-01

    Full Text Available INTRODUÇÃO: O aparecimento de Pseudomonas aeruginosa e Acinetobacter sp produtores de metalo-β-lactamases (MBLs é um desafio para os hospitais. MÉTODOS: Verificou-se a produção de MBL em cepas clínicas de Pseudomonas aeruginosa e Acinetobacter sp de um hospital de emergência de Porto Alegre pelo método de aproximação de disco e E-test MBL. Os genes bla foram pesquisados pela PCR. RESULTADOS: Duas cepas de Pseudomonas aeruginosa e oito Acinetobacter sp demonstraram fenótipo de MBLs. A amplificação do gene blaSPM-1 confirmou a enzima em P. aeruginosa.. CONCLUSÕES: Deve-se ter cautela ao avaliar testes fenotípicos utilizados na detecção rotineira de metalo-enzima.INTRODUCTION: The appearance of metallo-β-lactamase (MBL-producing Pseudomonas aeruginosa and Acinetobacter sp. is a challenge for hospitals. METHODS: The production of MBL in clinical isolates of Pseudomonas aeruginosa and Acinetobacter sp. From an emergency hospital in Porto Alegre was investigated using the disk approximation test and MBL E-test. The bla genes were determined using PCR. RESULTS: Two strains of Pseudomonas aeruginosa and eight of Acinetobacter sp were shown to be MBL phenotypes. Amplification of the blaSPM-1 gene confirmed the presence of the enzyme in P. aeruginosa. CONCLUSIONS: Caution is needed in evaluating phenotype tests used for routine detection of metallo-β-lactamases.

  6. Formulación participativa del presupuesto en el municipio Caroní: comparación con la experiencia de Porto Alegre

    Directory of Open Access Journals (Sweden)

    María Pilar GARCÍA-GUADILLA

    2009-11-01

    Full Text Available RESUMEN: El presente artículo evalúa la experiencia de descentralización local que se lleva a cabo desde 1990 hasta la fecha en el Municipio Caroní de Ciudad Guayana, Venezuela. Focalizándose en la elaboración del presupuesto participativo, se identifican los alcances y limitaciones de algunas prácticas de democracia participativa tales como la participación ciudadana en la gestión local. Finalmente, se hace una comparación con la experiencia de elaboración del presupuesto en forma participativa del municipio de Porto Alegre (Brasil estableciéndose las semejanzas y diferencias entre ambos procesos en lo que se refiere a los siguientes aspectos: la apertura de nuevos espacios de participación, el acceso a la información, la satisfacción de las demandas sociales en consonancia con los criterios de equidad y eficiencia, la existencia y utilización de mecanismos de control de la gestión y la posibilidad de trascender desde la participación local hacia la cultura política de ciudadanos o ciudadanía activa.ABSTRACT: This article evaluates the experience with local decentralization of the Municipio Caroní, in Venezuela since 1990 from the point of view of participatory democracy. It analyzes the decision making process around the elaboration of the socalled "Participatory Budgeting" and compares it with the case of the Municipio Porto Alegre in Brazil in order to draw some conclussión about: the opening of new spaces for participation, access to vital information, residente" satisfacction of their demands according to the criteria of efficiency and equity, mechanisms of control over the representatives and the possibility to trascend from a culture of local participatión to a citizens and active culture.

  7. Intake of oral photoprotectors by postmen in Porto Alegre

    Directory of Open Access Journals (Sweden)

    Karina dos Santos

    2017-09-01

    Full Text Available Introduction: Postmen are daily exposed to high levels of solar radiation, and lack of protection can result in many health damages. The present study aimed to identify cutaneous phototypes and evaluate the intake of oral photoprotectors by postmen. Methods: Cross-sectional study, carried out from August 2011 to December 2012 in the city of Porto Alegre, state of Rio Grande do Sul, Brazil. Socioeconomic and behavioral data regarding daily solar exposure were collected through a questionnaire. To evaluate the intake of beta-carotene, lycopene and omega-3, two 24-hour dietary recalls were applied. Cutaneous phototypes were assessed by Fitzpatrick’s classification.  Results: A total of 181 postmen were analyzed, whose mean age was 40.2±11.4 years old, and 140 (77.3% were male. The cutaneous phototypes II, III and IV were the most prevalent (n=138, totaling 76.3% of the sample. The median for the oral photoprotectors intake was 1.16 mg (0.46 – 2.29 of beta-carotene, 3.60 mg (1.01 – 6.31 of lycopene and 0.95 g (0.61 – 1.45 of n-3 fatty acids, all values significantly lower than the minimal doses to obtain photoprotective effect (p<0.001. The individuals in the group of phototypes V and VI showed lower adherence to the use of sunscreen and lower intake of beta-carotene, comparing to the other groups. Conclusions: The intake of oral photoprotectors is low in this population. Future studies may evaluate the real effect of oral photoprotectors, so that preventive measures using this approach can be included in photoprotection education actions for outdoor workers. Keywords: Diet; food and nutrition; skin aging; skin neoplasms; occupational health

  8. Geology of Maxwell Montes, Venus

    Science.gov (United States)

    Head, J. W.; Campbell, D. B.; Peterfreund, A. R.; Zisk, S. A.

    1984-01-01

    Maxwell Montes represent the most distinctive topography on the surface of Venus, rising some 11 km above mean planetary radius. The multiple data sets of the Pioneer missing and Earth based radar observations to characterize Maxwell Montes are analyzed. Maxwell Montes is a porkchop shaped feature located at the eastern end of Lakshmi Planum. The main massif trends about North 20 deg West for approximately 1000 km and the narrow handle extends several hundred km West South-West WSW from the north end of the main massif, descending down toward Lakshmi Planum. The main massif is rectilinear and approximately 500 km wide. The southern and northern edges of Maxwell Montes coincide with major topographic boundaries defining the edge of Ishtar Terra.

  9. CaSO4: Dy + Teflon thermoluminescent dosemeters

    International Nuclear Information System (INIS)

    Campos, L.L.

    1986-01-01

    A pellet dosemeter of CaSO 4 : Dy + Teflon was developed at IPEN. CaSO 4 : Dy thermoluminescent phosphor, grown in the Dosimetric Materials Production Laboratory was chosen, due to its high sensitivity, ease of preparation and comparatively low cost. Pellets were produced by cold pressing and sintering a mixture of CaSO 4 : Dy and Teflon powders. Extensive work was done to study in detail all CaSO 4 : Dy pellets characteristics from the point of view of dosimetry with the purpose of introducing it in the routine use. A filter combination providing an energy independent response from 20 KeV to 1,25 MeV was obtained. The dosemeter consists of three pellets sealed between two thin plastic sheets and placed under plastic and lead filters. The combination of these tree filters allows the exposure as well as the energy determination of an unknown source. (Author) [pt

  10. (U) Introduction to Monte Carlo Methods

    Energy Technology Data Exchange (ETDEWEB)

    Hungerford, Aimee L. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-03-20

    Monte Carlo methods are very valuable for representing solutions to particle transport problems. Here we describe a “cook book” approach to handling the terms in a transport equation using Monte Carlo methods. Focus is on the mechanics of a numerical Monte Carlo code, rather than the mathematical foundations of the method.

  11. História do ciclismo em Porto Alegre: os altos e baixos de uma prática

    Directory of Open Access Journals (Sweden)

    Carolina Fernandes da Silva

    2015-07-01

    Full Text Available O ciclismo é um esporte de origem europeia, que pode ser definido como a prática das corridas de bicicleta. No decorrer do século XIX ocorreu sua difusão para outros continentes, chegando ao Brasil e ao estado do Rio Grande do Sul na segunda metade do século. Objetivo: historiar desde as primeiras provas ciclísticas em Porto Alegre, passando pelo arrefecimento das disputas, até os anos de 1930, quando são retomadas as provas ciclísticas na cidade. Método: análise documental de publicações acerca do ciclismo em jornais do Rio Grande do Sul que circulavam na transição do século XIX e primeira metade do século XX. Resultados e Discussão: no princípio, a prática ciclística era promovida por dois clubes de Porto Alegre, que rivalizavam disputas acirradas. Ambos possuíam locais próprios para a prática, os velódromos. No final da década de 1910, o ciclismo teve um declínio com o advento do futebol, a novidade esportiva da época. Após um período em baixa, o esporte ganha um novo fôlego na década de 1930. Novos clubes haviam sido formados e a prática não estava mais restrita à capital, ocorriam também no interior, principalmente na cidade de Pelotas. A partir do fim do século XIX, as competições passaram a ter notas frequentes no jornal A Federação. Além disso, houve a criação de uma entidade própria, a Federação Gaúcha de Ciclismo, em 1935, que, posteriormente, também incorporou a prática do motociclismo. Considerações finais: historicamente, o ciclismo faz parte do cenário esportivo sul-rio-grandense, mas, ao longo do tempo, sofreu períodos de ascensão e declínio nas primeiras décadas do século XX.

  12. Antimicrobial susceptibility among Enterococcus isolates from the city of Porto Alegre, RS, Brazil Sensibilidade aos antimicrobianos entre amostras de Enterococcus isolados na cidade de Porto Alegre, RS, Brasil

    Directory of Open Access Journals (Sweden)

    Pedro Alves d'Azevedo

    2004-09-01

    Full Text Available Resistance to several classes of antimicrobial agents is a remarkable characteristic of enterococcal strains increasingly reported worldwide. Information about strains isolated in the southern region of Brazil is still limited. In this study, a total of 455 consecutive enterococcal isolates recovered from patients living in Porto Alegre, Brazil, were identified at species level and evaluated for their antimicrobial susceptibilities by agar diffusion testing. The most frequent species was E. faecalis (92.8%, followed by E. faecium (2.9%, E. gallinarum (1.5%, E. avium (1.1%, E. hirae (0.7%, E. casseliflavus (0.4%, E. durans (0.4%, and E. raffinosus (0.2%. According to the results of disk tests 62.0% of the strains were resistant to tetracycline, 42.6% to erythromycin, 24.8% to chloramphenicol, 22.6% to ciprofloxacin, 22.0% to norfloxacin, 3.5% to ampicillin, 3.5% to nitrofurantoin. High level resistance to aminoglycosides was found in 37.8% of the isolates, with 23.5% being resistant to gentamicin, 14.3% to streptomycin, and 2.8% to both gentamicin and streptomycin. No vancomycin resistant or b-lactamase producing isolates were found. The results indicate that a significant percentage of isolates are resistant to different antimicrobials, pointing out the need for control strategies to avoid dissemination of resistant isolates and for continuous surveillance for the detection of emerging resistance traits.A resistência a várias classes de agentes antimicrobianos é uma característica marcante dos enterococos observada em diferentes regiões geográficas. Informações sobre amostras isoladas na região sul do Brasil ainda são limitadas. No presente estudo, 455 enterococos isolados consecutivamente de pacientes moradores na cidade de Porto Alegre, Brasil, foram identificados ao nível de espécie e testados em relação a sua sensibilidade aos antimicrobianos através de testes de difusão em agar. As espécies mais freqüentes foram E

  13. Definição do tamanho amostral usando simulação Monte Carlo para o teste de normalidade baseado em assimetria e curtose. II.: abordagem multivariada Sample size definition using Monte Carlo simulation for the normality test based on skewness and kurtosis. II.: multivariate approach

    Directory of Open Access Journals (Sweden)

    Andréa Cristiane dos Santos

    2003-02-01

    Full Text Available Realizou-se este trabalho com o objetivo de determinar um tamanho amostral ótimo para as estatísticas univariadas de assimetria e curtose (z1 e z2 que, neste caso, foram adaptadas para o caso multivariado, e as estatísticas multivariadas de assimetria e curtose (k1 e k2 com base em simulação. Foram geradas diferentes funções densidade probabilidade multivariadas via método de Monte Carlo para avaliar a taxa de erro tipo I e o poder do teste para os valores nominais de 5% e 1%. Foram avaliadas as situações com p=2, 3, 4 e 5 variáveis, com diferentes estruturas de correlação. Para o caso multivariado, as diferentes estruturas de correlação não afetaram o poder e a taxa de erro tipo I dos testes; a estatística k2 é adequada para uso a partir de n> 50 para valores nominais de significância de 5% ou 1%; a estatística k2 é assintoticamente adequada para os testes de desvios de curtose para n> 100, independentemente dos valores nominais da significância. Pode-se concluir que as estatísticas de assimetria, em geral, são mais poderosas do que as de curtose, mas os testes da hipótese nula de normalidade multivariada devem considerar tanto os testes de desvios de assimetria como os de curtose conjuntamente, como sugerido no caso univariado.This work aimed to determine optimum sample size for the univariate skewness and kurtosis statistics (z1 and z2 adapted to multivariate situation and for the multivariate skewness and kurtosis statistics (k1 and k2 statistics based on simulation. Different probability density functions, univariate and multivariate, were generated by Monte Carlo simulation method to evaluate the type I error rates and the power of the tests. The simulations were done adopting the nominal significance level of 5% and 1%. Situations with p=2, 3, 4 and 5 variables with different correlation structures were evaluated in the case of multivariate distributions. The results showed that k1 statistics is adequate for n> 50

  14. Six sigma: program characteristics in eleven companies located in the metropolitan region of Porto Alegre

    Directory of Open Access Journals (Sweden)

    Jaqueline Terezinha Martins Correa Rodrigues

    2012-01-01

    Full Text Available Six Sigma combines managerial factors with statistical tools and is deployed in many enterprises today. Rio Grande do Sul is a Brazilian state that has a great industrialization, especially in the metropolitan area of Porto Alegre. Some of these industries have deployed the Six Sigma program. The aim of this paper is to present characteristics of the Six Sigma program in companies located in this region, through an exploratory study. A literature review subsidized the development of the questionnaire. Eleven companies participated of research in July and August 2008. It used statistical tools and qualitative analysis to analyze the results. Most of the companies that participated is classified as large and uses the DMAIC method to implement Six Sigma. The principal cause of program implementation was process improvement. In only one company the Six Sigma is implemented in all sectors, including administrative areas. Another result is the lack of clearly criteria for defining the career of Belts and the discrepancy of academic formation of these specialists.

  15. Viabilidade econômica e tecnológica para a reciclagem das embalagens cartonadas longa vida pós-consumo de Porto Alegre

    OpenAIRE

    Rafael Batista Zortea

    2001-01-01

    O trabalho em questão tem como tema verificar a possibilidade do processo de reciclagem das embalagens longa vida pós-consumo geradas em Porto Alegre, baseando-se na infra-estrutura de gestão de resíduos existente na cidade e, em dados e informações de empresas de outras cidades que já começam a incorporar este tipo de resíduo como matériaprima em seus processos de reciclagem. A análise de alternativas, a fim de verificar a possibilidade da criação de recicladoras com o intuito de reaproveita...

  16. Lectures on Monte Carlo methods

    CERN Document Server

    Madras, Neal

    2001-01-01

    Monte Carlo methods form an experimental branch of mathematics that employs simulations driven by random number generators. These methods are often used when others fail, since they are much less sensitive to the "curse of dimensionality", which plagues deterministic methods in problems with a large number of variables. Monte Carlo methods are used in many fields: mathematics, statistics, physics, chemistry, finance, computer science, and biology, for instance. This book is an introduction to Monte Carlo methods for anyone who would like to use these methods to study various kinds of mathemati

  17. Hybrid SN/Monte Carlo research and results

    International Nuclear Information System (INIS)

    Baker, R.S.

    1993-01-01

    The neutral particle transport equation is solved by a hybrid method that iteratively couples regions where deterministic (S N ) and stochastic (Monte Carlo) methods are applied. The Monte Carlo and S N regions are fully coupled in the sense that no assumption is made about geometrical separation or decoupling. The hybrid Monte Carlo/S N method provides a new means of solving problems involving both optically thick and optically thin regions that neither Monte Carlo nor S N is well suited for by themselves. The hybrid method has been successfully applied to realistic shielding problems. The vectorized Monte Carlo algorithm in the hybrid method has been ported to the massively parallel architecture of the Connection Machine. Comparisons of performance on a vector machine (Cray Y-MP) and the Connection Machine (CM-2) show that significant speedups are obtainable for vectorized Monte Carlo algorithms on massively parallel machines, even when realistic problems requiring variance reduction are considered. However, the architecture of the Connection Machine does place some limitations on the regime in which the Monte Carlo algorithm may be expected to perform well

  18. Monte Carlo simulation in nuclear medicine

    International Nuclear Information System (INIS)

    Morel, Ch.

    2007-01-01

    The Monte Carlo method allows for simulating random processes by using series of pseudo-random numbers. It became an important tool in nuclear medicine to assist in the design of new medical imaging devices, optimise their use and analyse their data. Presently, the sophistication of the simulation tools allows the introduction of Monte Carlo predictions in data correction and image reconstruction processes. The availability to simulate time dependent processes opens up new horizons for Monte Carlo simulation in nuclear medicine. In a near future, these developments will allow to tackle simultaneously imaging and dosimetry issues and soon, case system Monte Carlo simulations may become part of the nuclear medicine diagnostic process. This paper describes some Monte Carlo method basics and the sampling methods that were developed for it. It gives a referenced list of different simulation software used in nuclear medicine and enumerates some of their present and prospective applications. (author)

  19. Estudo retrospectivo dos transplantes penetrantes de córnea da Santa Casa de Porto Alegre Retrospective study of penetrating keratoplasty at the Santa Casa of Porto Alegre

    Directory of Open Access Journals (Sweden)

    Caroline Fabris

    2001-10-01

    Full Text Available Objetivos: Traçar o perfil clínico e social dos pacientes submetidos a transplante de córnea e avaliar as principais indicações desses transplantes, tempo de espera para doação e os índices de sucesso, rejeição e falência dos transplantes penetrantes de córnea. Métodos: Foram analisados retrospectivamente os prontuários de 87 pacientes submetidos a transplante penetrante de córnea no Serviço de Oftalmologia da Santa Casa de Porto Alegre entre janeiro de 1990 e dezembro de 1998, totalizando 91 olhos. Destes, 56 pacientes foram chamados para avaliação clínica do enxerto durante o levantamento de dados para este estudo. Resultados: Considerando-se os 91 transplantes (87 pacientes, 53 (60,9% foram realizados em pacientes do sexo masculino e 34 (39%, do sexo feminino. A idade variou de 3 a 89 anos, com média de 42,3 ± 19,8 anos. As principais indicações para transplante de córnea foram ceratocone em 32 (35% olhos, ceratopatia bolhosa (pós-facectomia, distrofia de Fuchs e outros em 24 (26,4%, trauma mecânico em 9 (9,9%, causas infecciosas em 9 (9,9%, queimadura química em 2 (2,2%, queimadura térmica em 1 (1,1% e outras causas em 14 (15,4% olhos. O tempo médio de espera por doação de córnea foi de 17,3 ± 9,9 meses. Do total de 91 olhos transplantados, 25 (27,5% apresentaram rejeição e 12 (13,2% olhos apresentaram falência do transplante. Conclusões: Este estudo mostrou a epidemiologia dos pacientes transplantados. A falta de dados seriados devido à alta precoce e perda de acompanhamento dos pacientes tornou impossível a análise e a comparação dos resultados pós-operatórios com outros estudos.Purpose: To describe the clinical and social profile of recipient patients of transplanted corneas, and to evaluate main indications for corneal transplants, waiting time for donor tissue, and percentages of success, rejection and failure of penetrating keratoplasty. Methods: Retrospective chart review of 87 patients

  20. Measurement of thermal neutron fluence with CaSO4 thermoluminescent phosphors

    International Nuclear Information System (INIS)

    Liu Jinhua; Su Jingling; Wei Zemin

    1984-01-01

    During neutron irradiation, some TL phosphors were activated. After leaving the irradiation field the TL phosphor produced self-irradiation. The TL output of self-dose was only related to the original neutron fluence and independent of the γ-radiation. Several CaSO 4 TL phosphors were made. They were CaSO 4 :Dy, CaSO 4 :Dy-Teflon, CaSO 4 :Dy mixed with Dy 2 O 3 , CaSO 4 :Mn mixed with Dy 2 O 3 . The linearity, and lower detection limits of these TL phosphors were measured. The thermal neutron response of CaSO 4 :Mn mixed with Dy 2 O 3 was 64 R/(10 10 cm -2 ) and the lower detection limit was 1.3x10 5 cm -2

  1. Filariosis humana en la selva peruana: reporte de tres casos

    Directory of Open Access Journals (Sweden)

    María Beltrán

    2008-04-01

    Full Text Available Se presenta tres casos de filariosis de pacientes varones procedentes de la selva peruana (Junín, San Martín y Pucallpa. Un caso presentó filarias en el globo ocular y frotís sanguíneo, que según morfología, serología y biología molecular se determinó como un posible caso de filariosis zoonótica por Onchocerca spp. Los otros dos casos fueron causados por Dirofilaria spp. uno presentó un nódulo en el pómulo y sensación de movilidad en la zona y fue diagnosticado por serología y el último caso se le extrajo una filaria del dedo pulgar de la mano y fue identificado como tal por morfología y biología molecular. Estos casos son los primeros reportes en el Perú por Dirofilaria spp. y Onchocerca spp.

  2. Consumer behaviour towards organic food in porto alegre: an application of the theory of planned behaviour

    Directory of Open Access Journals (Sweden)

    Alexia Hoppe

    2013-03-01

    Full Text Available The aim of this study was to investigate consumers' decision-making process, attitudes and values towards organic food throughout the employment of the Theory of Planned Behaviour, adapting the methodology from a European project. 450 consumers were interviewed at supermarkets and farmers' markets in Porto Alegre, Brazil. Results indicate a high penetration level and very positive attitude towards organic products. Organics are believed to be healthier, tastier, more natural and environmental friendly, although being less attractive and more expensive than conventional food. Respondents from the farmers' market represent a specific segment whose values are more oriented toward society. The findings showed an alignment between positive attitude and consumption behaviour among the surveyed consumers. The study finally contributes to the stakeholders in general, since the knowledge of the attributes more valued by consumers can help retailers to play the role of coordinators of this supply chain, stimulating producers to adhere to organic certification, helping them to upgrade their production practices and improve their income. Consumers are also benefiting from this offer in the market.O estudo investiga o processo de tomada de decisão dos consumidores, suas atitudes e valores em relação ao alimento orgânico pelo uso da Teoria do Comportamento Planejado, adaptando a metodologia de um estudo da União Europeia. Foram entrevistados 450 consumidores em supermercados e feiras ecológicas em Porto Alegre, Brasil. Os resultados indicam um grande nível de penetração e uma atitude muito positiva em relação aos produtos orgânicos. Os entrevistados acreditam que os alimentos orgânicos são mais saudáveis, saborosos, mais naturais e ambientalmente corretos, apesar de serem menos atraentes visualmente e mais caros que alimentos convencionais. Os respondentes das feiras ecológicas representam um segmento específico com valores mais orientados

  3. Epidemiologia e organização de serviços de saúde: diabetes mellitus numa comunidade de Porto Alegre Epidemiology and organization of health services: diabetes mellitus in a community of the city of Porto Alegre

    Directory of Open Access Journals (Sweden)

    Rodrigo Geisler Mielczarski

    2012-01-01

    Full Text Available O objetivo foi avaliar as condições de processo e de resultado no atendimento às pessoas acima de 20 anos com diagnóstico de diabetes mellitus, residentes na área de cobertura da UBS Vila Gaúcha, Porto Alegre. Avaliou-se a prevalência de pacientes controlados com diabetes mellitus. A definição de pacientes controlados foi estabelecida a partir dos valores da pressão arterial, hemoglobina glicada, circunferência abdominal e/ou IMC. Das 753 pessoas acima de 20 anos, 37 (4,9%; IC95% 3,4 6,5 referiram diabetes mellitus diagnosticado por médico. Realizaram-se as medidas de controle em 31 (83,8% pessoas. Encontraram-se 24 (77,4% indivíduos com níveis pressóricos alterados, 25 (80,6% com IMC igual ou maior que 25 kg/m², 29 (93,5% com circunferência abdominal acima da normalidade e 18 (58,1% com hemoglobina glicada igual ou maior que 8%. Para se avaliar os resultados foram utilizados diagramas. Apenas um paciente foi classificado como controlado. A interpretação dos diagramas aponta para a necessidade de ações visando à redução de peso corporal na comunidade, medida que atingiria os pacientes com diabetes.This study sought to assess the conditions of processing and results in care for people aged over 20 diagnosed with diabetes mellitus and living in an area covered by the UBS Vila Gaúcha, in Porto Alegre. Disease control rate of interviewees with self-reported diabetes was assessed. Definition of this rate was established from arterial pressure values, glycosylated hemoglobin, abdominal circumference, and/or BMI. Of the 753 people aged over 20 years, 37 (4.9%; 95% CI 3.4 6.5 mentioned diabetes mellitus diagnosed by a physician. Disease control rate measurements were performed in 31 (83.8% people. Results revealed 24 (77.4% individuals with altered blood pressure levels, 25 (80.6% with BMI equal to or above 25 kg/m², 29 (93.5% with abdominal circumference above normal and 18 (58.1% with glycosylated hemoglobin equal to or above

  4. Crescimento populacional, ocupação e desemprego dos jovens: a experiência recente da Região Metropolitana de Porto Alegre Population growth, labor by youth and unemployment: the recent experience of the Metropolitan Area of Porto Alegre, Brazil

    Directory of Open Access Journals (Sweden)

    Raul Luís Assumpção Bastos

    2006-12-01

    Full Text Available Este artigo investiga o quanto o tamanho relativo da população juvenil na Região Metropolitana de Porto Alegre (RMPA afetou a ocupação e o desemprego desse segmento no período 1993-2004. Esta questão ganha relevância no presente tanto pelo fato de que diversos estudos têm apontado a ocorrência do fenômeno de uma onda jovem nas principais regiões metropolitanas do país, nos anos 90, quanto pela correlata observação de uma tendência à elevação do desemprego entre os jovens no período. Assim, primeiramente, é feita uma síntese dos argumentos a respeito dos efeitos do tamanho relativo da coorte juvenil sobre a situação deste grupo populacional no mercado de trabalho. Em seguida, identificam-se as principais tendências da população e da força de trabalho juvenil no mercado de trabalho da RMPA, bem como se estimam os efeitos do tamanho relativo da coorte juvenil sobre a ocupação e o desemprego desse grupo populacional.This article studies to what extent the relative size of the young population in the Metropolitan Area of Porto Alegre (RMPA affected employment and unemployment of this group between 1993 and 2004. This question has taken on considerable importance, based on two different factors. The first is the fact that a number of studies have indicated the occurrence of the phenomenon of a wave of youth in the largest metropolitan areas in the country during the 1990s. Secondly, the concomitant trend toward higher unemployment among youth during this same period. The article is organized in the following way: after the Introduction, Section 2 presents a synthesis of the arguments regarding the effects of the relative size of the cohort of youth on the situation of this group in the labor market. Section 3 identifies the main trends of the younger population within the labor market in the RMPA and estimates the effects of the relative size of this cohort on the employment and unemployment of this population group

  5. Belo Monte hydropower project: actual studies; AHE Belo Monte: os estudos atuais

    Energy Technology Data Exchange (ETDEWEB)

    Figueira Netto, Carlos Alberto de Moya [CNEC Engenharia S.A., Sao Paulo, SP (Brazil); Rezende, Paulo Fernando Vieira Souto [Centrais Eletricas Brasileiras S.A. (ELETROBRAS), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    This article presents the evolution of the studies of Belo Monte Hydro Power Project (HPP) since the initial inventory studies of the Xingu River in 1979 until the current studies for conclusion of the Technical, Economic and Environmental Feasibility Studies the Belo Monte Hydro Power Project, as authorized by Brazilian National Congress. The current studies characterize the Belo Monte HPP with an installed capacity of 11,181.3 MW (20 units of 550 MW in the main power house and 7 units of 25.9 MW in the additional power house), connected to the Brazilian Interconnected Power Grid, allowing to generate 4,796 mean MW of firm energy, without depending on any flow rate regularization of the upstream Xingu river flooding only 441 k m2, of which approximately 200 k m2, correspond to the normal annual wet season flooding of the Xingu River. (author)

  6. Advanced Multilevel Monte Carlo Methods

    KAUST Repository

    Jasra, Ajay

    2017-04-24

    This article reviews the application of advanced Monte Carlo techniques in the context of Multilevel Monte Carlo (MLMC). MLMC is a strategy employed to compute expectations which can be biased in some sense, for instance, by using the discretization of a associated probability law. The MLMC approach works with a hierarchy of biased approximations which become progressively more accurate and more expensive. Using a telescoping representation of the most accurate approximation, the method is able to reduce the computational cost for a given level of error versus i.i.d. sampling from this latter approximation. All of these ideas originated for cases where exact sampling from couples in the hierarchy is possible. This article considers the case where such exact sampling is not currently possible. We consider Markov chain Monte Carlo and sequential Monte Carlo methods which have been introduced in the literature and we describe different strategies which facilitate the application of MLMC within these methods.

  7. Advanced Multilevel Monte Carlo Methods

    KAUST Repository

    Jasra, Ajay; Law, Kody; Suciu, Carina

    2017-01-01

    This article reviews the application of advanced Monte Carlo techniques in the context of Multilevel Monte Carlo (MLMC). MLMC is a strategy employed to compute expectations which can be biased in some sense, for instance, by using the discretization of a associated probability law. The MLMC approach works with a hierarchy of biased approximations which become progressively more accurate and more expensive. Using a telescoping representation of the most accurate approximation, the method is able to reduce the computational cost for a given level of error versus i.i.d. sampling from this latter approximation. All of these ideas originated for cases where exact sampling from couples in the hierarchy is possible. This article considers the case where such exact sampling is not currently possible. We consider Markov chain Monte Carlo and sequential Monte Carlo methods which have been introduced in the literature and we describe different strategies which facilitate the application of MLMC within these methods.

  8. CASO DE PRIMARIA: REZAGO EDUCATIVO POR FALTA DE DESARROLLO DE COMPETENCIAS

    OpenAIRE

    Saucedo, Gerardo

    2012-01-01

    Párrafo de inicio, explicación del caso, explicación de un ejercicio tanto individual como grupal para un debate referente al caso,los objetivos del caso, soluciones propuestas por el autor y conclusiones

  9. The prevalence of elder abuse in the Porto Alegre metropolitan area

    Directory of Open Access Journals (Sweden)

    Camila Mello dos Santos

    2013-06-01

    Full Text Available Abuse of the elderly is a form of violence to come to the public's attention. Dental professionals are in an ideal position to identify physical abuse. The aim of this study was to assess the prevalence of elderly abuse and analyze the database of injury reports that can be identified by dental teams. A documentary analysis study developed by the Elderly Protection Police Station of Porto Alegre, Rio Grande do Sul, was carried out. The information used came from 2,304 complaints filed at the aforementioned institution between the years of 2004 and 2006. The records of abuse are categorized as injury, neglect, mistreatment, theft, financial abuse, threat, disturbing the peace, atypical fact, and others. The injuries that could be identified by the dental team were classified according to the injury's location in the area of the head, face, mouth and neck. Descriptive analysis was performed, and chi-square tests were used to evaluate the distributions of the types of elder abuse in relation to sex and age. The most frequent of the different types of abuse was theft, with a prevalence of 17.8%, followed by disturbing the peace at 11.8%. Disturbing the peace, threat, and bodily injury were significantly associated with women. Elder abuse among women and men declines with age. The prevalence of head injury was 25% of the total injuries, most often in females, and in those aged < 70 years. Based on these results, it is necessary that the dental team observe the elderly person's appearance for suspicious physical signs.

  10. Monte Carlo - Advances and Challenges

    International Nuclear Information System (INIS)

    Brown, Forrest B.; Mosteller, Russell D.; Martin, William R.

    2008-01-01

    Abstract only, full text follows: With ever-faster computers and mature Monte Carlo production codes, there has been tremendous growth in the application of Monte Carlo methods to the analysis of reactor physics and reactor systems. In the past, Monte Carlo methods were used primarily for calculating k eff of a critical system. More recently, Monte Carlo methods have been increasingly used for determining reactor power distributions and many design parameters, such as β eff , l eff , τ, reactivity coefficients, Doppler defect, dominance ratio, etc. These advanced applications of Monte Carlo methods are now becoming common, not just feasible, but bring new challenges to both developers and users: Convergence of 3D power distributions must be assured; confidence interval bias must be eliminated; iterated fission probabilities are required, rather than single-generation probabilities; temperature effects including Doppler and feedback must be represented; isotopic depletion and fission product buildup must be modeled. This workshop focuses on recent advances in Monte Carlo methods and their application to reactor physics problems, and on the resulting challenges faced by code developers and users. The workshop is partly tutorial, partly a review of the current state-of-the-art, and partly a discussion of future work that is needed. It should benefit both novice and expert Monte Carlo developers and users. In each of the topic areas, we provide an overview of needs, perspective on past and current methods, a review of recent work, and discussion of further research and capabilities that are required. Electronic copies of all workshop presentations and material will be available. The workshop is structured as 2 morning and 2 afternoon segments: - Criticality Calculations I - convergence diagnostics, acceleration methods, confidence intervals, and the iterated fission probability, - Criticality Calculations II - reactor kinetics parameters, dominance ratio, temperature

  11. Raquitismo carencial: relato de caso

    OpenAIRE

    Porto, Juliana Antola et al.

    2005-01-01

    Introdução: O raquitismo é uma doença do tecido ósseo em formação, onde há falha na calcificação e conseguinte acúmulo de tecido osteóide. O raquitismo carencial é decorrente da deficiência dos precursores da vitamina D, sendo a causa de raquitismo mais facilmente evitável e tratável. Objetivo: Relatar um caso, revisar a etiopatogenia e o tratamento do raquitismo carencial. Relato de caso: Paciente masculino com 2 anos de idade, previamente hígido, consulta com dificuldade de deambular progre...

  12. Análise da forma de descarte de medicamentos por usuários de uma Unidade de Saúde no município de Porto Alegre/RS

    Directory of Open Access Journals (Sweden)

    Gelson Antonio IOB

    2013-12-01

    Full Text Available Não há em nosso país uma normatização que regulamente o descarte de medicamentos domiciliares. Em vista disso, realizou-se um estudo quantitativo, contemporâneo, observacional, realizado por meio da aplicação de um questioná- rio estruturado objetivando analisar a forma mais comum de descarte de medicamentos por usuários da Unidade de Saúde Parque dos Maias (USPM do Grupo Hospitalar Conceição (GHC, localizada no município de Porto Alegre/ RS. O estudo incluiu 238 moradores, com erro aceitável de 5% e um nível de confiança de 95%. Em relação à análise da população estudada observou-se que 97,9% relataram que possuem medicamentos em suas residências; 86,6% nunca receberam orientação de como descartar medicamentos; 60% descartam no meio ambiente os medicamentos vencidos encontrados nos domicílios. A investigação estatística realizada pelo teste de Qui-quadrado para as variáveis analisadas não apresentou associação estatisticamente significativa entre escolaridade e renda com boa parte das ações de descarte de medicamentos pesquisadas. Constatou-se que medidas efetivas deveriam ser melhor organizadas para diminuir e regulamentar a geração e o destino dos medicamentos impróprios para o consumo presentes nas residências, minimizando assim danos ao meio ambiente e a saúde pública.

  13. Hipertiroidismo congénito, Reporte de dos casos

    Directory of Open Access Journals (Sweden)

    Víctor Clemente Mendoza Rojas

    2014-04-01

    Full Text Available Introducción: El hipertiroidismo es una patología tiroidea poco frecuente en neonatos, relacionada con el antecedente materno de enfermedad de Graves, y por lo tanto con el paso transplacentario de inmunoglobulinas estimulantes del receptor de TSH. Presentación de casos: Reportamos dos casos de sexo femenino, que se presentaron en el Hospital Universitario de Santander. El primero de los casos se manifestó en la primera semana; el segundo caso se presentó tardíamente después del primer mes de vida. Los síntomas que presentaron en común fueron taquicardia persistente e hiperactividad. En uno de los casos la presentación clínica fue confundida con una infección bacteriana, debido a la presencia de fiebre. Se confirma el diagnóstico con los niveles de TSH muy suprimidos y T4 libre elevada, al menos al doble del límite superior. Los dos casos observaron medicamentos antitiroideos y propanolol con buena evolución clínica y de laboratorios; no se observamos complicaciones a corto o largo plazo como arritmias o craneosinostosis. Discusión: El hipertiroidismo congénito es una patología poco frecuente y siempre debe ser sospechado en recién nacidos de madres con antecedente de enfermedad de Graves, sus manifestaciones pueden presentarse prenatalmente o postnatalmente, y su diagnóstico y tratamiento deben ser oportunos para evitar secuelas a largo plazo o incluso la muerte

  14. Monte Carlo simulation of experiments

    International Nuclear Information System (INIS)

    Opat, G.I.

    1977-07-01

    An outline of the technique of computer simulation of particle physics experiments by the Monte Carlo method is presented. Useful special purpose subprograms are listed and described. At each stage the discussion is made concrete by direct reference to the programs SIMUL8 and its variant MONTE-PION, written to assist in the analysis of the radiative decay experiments μ + → e + ν sub(e) antiνγ and π + → e + ν sub(e)γ, respectively. These experiments were based on the use of two large sodium iodide crystals, TINA and MINA, as e and γ detectors. Instructions for the use of SIMUL8 and MONTE-PION are given. (author)

  15. Análise da implantação das patrulhas Maria da Penha nos territórios da paz em Porto Alegre: avanços e desafios = Implementation analysis of the Maria da Penha patrols in peace territories in Porto Alegre: advances and challenges

    Directory of Open Access Journals (Sweden)

    Spaniol, Marlene Inês

    2014-01-01

    Full Text Available O artigo apresenta a experiência da implantação das Patrulhas Maria da Penha pela Polícia Militar do Estado do Rio Grande do Sul, numa ação de fiscalização do cumprimento de medidas protetivas determinadas judicialmente e também de ação policial preventiva, para evitar reincidências e novas violências de gênero. Mostra, ainda, os resultados deste projeto - piloto junto aos quatro Territórios da Paz, no município de Porto Alegre, instalados em bairros com altas taxas de violência e criminalidade e, diante dos resultados neste primeiro ano de atuação, os esforços para sua ampliação para todo o Estado

  16. Fast sequential Monte Carlo methods for counting and optimization

    CERN Document Server

    Rubinstein, Reuven Y; Vaisman, Radislav

    2013-01-01

    A comprehensive account of the theory and application of Monte Carlo methods Based on years of research in efficient Monte Carlo methods for estimation of rare-event probabilities, counting problems, and combinatorial optimization, Fast Sequential Monte Carlo Methods for Counting and Optimization is a complete illustration of fast sequential Monte Carlo techniques. The book provides an accessible overview of current work in the field of Monte Carlo methods, specifically sequential Monte Carlo techniques, for solving abstract counting and optimization problems. Written by authorities in the

  17. The MC21 Monte Carlo Transport Code

    International Nuclear Information System (INIS)

    Sutton TM; Donovan TJ; Trumbull TH; Dobreff PS; Caro E; Griesheimer DP; Tyburski LJ; Carpenter DC; Joo H

    2007-01-01

    MC21 is a new Monte Carlo neutron and photon transport code currently under joint development at the Knolls Atomic Power Laboratory and the Bettis Atomic Power Laboratory. MC21 is the Monte Carlo transport kernel of the broader Common Monte Carlo Design Tool (CMCDT), which is also currently under development. The vision for CMCDT is to provide an automated, computer-aided modeling and post-processing environment integrated with a Monte Carlo solver that is optimized for reactor analysis. CMCDT represents a strategy to push the Monte Carlo method beyond its traditional role as a benchmarking tool or ''tool of last resort'' and into a dominant design role. This paper describes various aspects of the code, including the neutron physics and nuclear data treatments, the geometry representation, and the tally and depletion capabilities

  18. Monte Carlo Treatment Planning for Advanced Radiotherapy

    DEFF Research Database (Denmark)

    Cronholm, Rickard

    This Ph.d. project describes the development of a workflow for Monte Carlo Treatment Planning for clinical radiotherapy plans. The workflow may be utilized to perform an independent dose verification of treatment plans. Modern radiotherapy treatment delivery is often conducted by dynamically...... modulating the intensity of the field during the irradiation. The workflow described has the potential to fully model the dynamic delivery, including gantry rotation during irradiation, of modern radiotherapy. Three corner stones of Monte Carlo Treatment Planning are identified: Building, commissioning...... and validation of a Monte Carlo model of a medical linear accelerator (i), converting a CT scan of a patient to a Monte Carlo compliant phantom (ii) and translating the treatment plan parameters (including beam energy, angles of incidence, collimator settings etc) to a Monte Carlo input file (iii). A protocol...

  19. Educação na política pública de inclusão digital: programa telecentro - município de Porto Alegre

    OpenAIRE

    Tonidandel, Iara Teresinha Coelho

    2007-01-01

    Este estudo analisou o papel da educação no espaço de inclusão digital, Telecentro Lupicinio Rodrigues, promovido pela Política Pública Municipal de Inclusão Digital, em Porto Alegre. A pesquisa, ao investigar os aspectos que tangenciam e estruturam a referida política pública, o perfil do jovem que freqüenta o Telecentro Lupicinio Rodrigues, a concepção de educação e as práticas educativas realizadas nesse telecentro, a inclusão social e as transformações sociais à luz da inclusão digital, p...

  20. Consumer behaviour towards organic food in porto alegre: an application of the theory of planned behaviour

    Directory of Open Access Journals (Sweden)

    Alexia Hoppe

    2013-03-01

    Full Text Available The aim of this study was to investigate consumers' decision-making process, attitudes and values towards organic food throughout the employment of the Theory of Planned Behaviour, adapting the methodology from a European project. 450 consumers were interviewed at supermarkets and farmers' markets in Porto Alegre, Brazil. Results indicate a high penetration level and very positive attitude towards organic products. Organics are believed to be healthier, tastier, more natural and environmental friendly, although being less attractive and more expensive than conventional food. Respondents from the farmers' market represent a specific segment whose values are more oriented toward society. The findings showed an alignment between positive attitude and consumption behaviour among the surveyed consumers. The study finally contributes to the stakeholders in general, since the knowledge of the attributes more valued by consumers can help retailers to play the role of coordinators of this supply chain, stimulating producers to adhere to organic certification, helping them to upgrade their production practices and improve their income. Consumers are also benefiting from this offer in the market.

  1. Desenvolvimento economico local em Porto Alegre e Santo Andre : um estudo sobre o papel das administrações municipais frente ao mainstream politico e academico conservador

    OpenAIRE

    Kleyferson Porto de Araujo

    2004-01-01

    Resumo:Esta dissertação tem por objetivo estudar como as políticas de desenvolvimento econômico local de dois importantes municípios brasileiros, governados por partidos de esquerda, estão se comportando frente ao mainstream político e acadêmico conservador, configurado pelo Banco Mundial. Para tanto, foram descritas e analisadas as políticas de desenvolvimento econômico local propostas pelo Banco Mundial e pelas administrações municipais de Porto Alegre e de Santo André. Inicialmente, são di...

  2. Neoplasmas bovinos diagnosticados no Setor de Patologia Veterinária da UFRGS, Porto Alegre (2005-2014

    Directory of Open Access Journals (Sweden)

    Matheus de O. Reis

    Full Text Available RESUMO: Realizou-se um estudo retrospectivo com o objetivo de determinar os tipos de neoplasmas em bovinos e a sua frequência. Foram analisados os casos de necropsias e biopsias de bovinos com diagnóstico de neoplasia, submetidos ao Setor de Patologia Veterinária da Universidade Federal do Rio Grande do Sul (SPV-UFRGS, entre janeiro de 2005 e dezembro de 2014. De um total de 4.188 exames realizados em bovinos, 154 foram diagnosticados como neoplasmas. Destes, 100 casos foram a causa da morte, 41 foram achados de frigorífico e 13 casos eram biopsias de cirurgias realizadas por veterinários de campo. Os neoplasmas ocorreram com maior frequência em bovinos adultos (96/154, fêmeas (125/154 e a raça mais acometida foi a Holandesa (79/154. Os neoplasmas mais frequentes foram linfoma (73/154, carcinoma de células escamosas (28/154, papiloma (9/154, melanoma (6/154 e feocromocitoma (6/154. Os sistemas mais acometidos foram o hemopoiético (75/154 e tegumentar (25/154. Conclui-se que o linfoma e o carcinoma de células escamosas são os neoplasmas mais frequentes em bovinos diagnosticados no SPV-UFRGS, Brasil.

  3. Uveomeningencefalites: registro de dois casos

    Directory of Open Access Journals (Sweden)

    Wilson Luiz Sanvito

    1982-03-01

    Full Text Available Após considerações a propósito das manifestações clínicas das uveomeningencefalites, são relatados dois casos com características clínicas ligeiramente diferentes. No caso 1 tratava-se da doença de Harada, tendo o paciente apresentado quadro meningítico agudo acompanhado de confusão mental. O exame do líquido cefalorraquidiano evidenciou um quadro inflamatório do tipo linfo-monocitário e o paciente evoluiu com distúrbios acentuados da memória e uveíte bilateral. Após alguns meses de evolução, a doença deixou como seqüelas uma síndrome de Korsakoff e ambliopia acentuada no olho esquerdo. No caso 2 tratava-se de doença de Behcet, tendo o paciente apresentado dois surtos de meningite do tipo linfomonocitário, lesões herpetiformes na genitalia e uveíte no olho direito que evoluiu para amaurose. São feitas considerações sobre os aspectos etiopatogênicos destas afecções e sobre o controvertido uso dos corticosteróides em seu tratamento.

  4. As leis da natureza e os casos de Tooley

    Directory of Open Access Journals (Sweden)

    Rodrigo Reis Lastra Cid

    2013-06-01

    Full Text Available Os objetivos deste artigo são: (1 apresentar quatro teorias com relação à natureza das leis naturais, (2 mostrar que apenas uma delas é capaz de responder satisfatoriamente aos Casos de Tooley e (3 indicar por que tais casos são relevantes para a nossa ontologia. Estes objetivos são importantes, pois o conceito de "lei natural" é utilizado em muitos, se não todos, os domínios das ciências e em muitos domínios da filosofia; e, se tais casos forem possíveis, eles serão situações que precisariam ser adequadamente descritas. Se uma e apenas uma teoria puder descrever tais casos adequadamente, haverá fortes razões para preferir tal teoria frente às outras.

  5. Monte carlo simulation for soot dynamics

    KAUST Repository

    Zhou, Kun

    2012-01-01

    A new Monte Carlo method termed Comb-like frame Monte Carlo is developed to simulate the soot dynamics. Detailed stochastic error analysis is provided. Comb-like frame Monte Carlo is coupled with the gas phase solver Chemkin II to simulate soot formation in a 1-D premixed burner stabilized flame. The simulated soot number density, volume fraction, and particle size distribution all agree well with the measurement available in literature. The origin of the bimodal distribution of particle size distribution is revealed with quantitative proof.

  6. La tradición oral en la novelística de Ciro Alegría

    Directory of Open Access Journals (Sweden)

    Nécker Salazar Mejía

    2015-11-01

    Full Text Available El artículo estudia la influencia de la literatura oral en la trilogía novelística de Ciro Alegría, conformada por La serpiente de oro (1935, Los perros hambrientos (1938 y El mundo es ancho y ajeno (1941. En dicho corpus, figuran narraciones que pertenecen a la tradición oral andina, cuya inclusión demuestra la firme identificación del autor con el relato popular, así como el papel decisivo que este desempeña en el contenido y estructura de su novelística. En esa misma dirección, se halla la figura del narrador oral, cuya perfomance y estrategias discursivas siguen el modelo del narrador popular. Por otro lado, en la novelística alegriana, la tradición oral se articula con la memoria colectiva y expresa la visión de los indios mediante narraciones testimoniales. En un plano mayor, la filiación de la novelística alegriana con la literatura oral representa una valoración de las expresiones de la literatura no canónica en el Perú.

  7. The ternary system K2SO4MgSO4CaSO4

    Science.gov (United States)

    Rowe, J.J.; Morey, G.W.; Silber, C.C.

    1967-01-01

    Melting and subsolidus relations in the system K2SO4MgSO4CaSO4 were studied using heating-cooling curves, differential thermal analysis, optics, X-ray diffraction at room and high temperatures and by quenching techniques. Previous investigators were unable to study the binary MgSO4CaSO4 system and the adjacent area in the ternary system because of the decomposition of MgSO4 and CaSO4 at high temperatures. This problem was partly overcome by a novel sealed-tube quenching method, by hydrothermal synthesis, and by long-time heating in the solidus. As a result of this study, we found: (1) a new compound, CaSO4??3MgSO4 (m.p. 1201??C) with a field extending into the ternary system; (2) a high temperature form of MgSO4 with a sluggishly reversible inversion. An X-ray diffraction pattern for this polymorphic form is given; (3) the inversion of ??-CaSO4 (anhydrite) to ??-CaSO4 at 1195??C, in agreement with grahmann; (1) (4) the melting point of MgSO4 is 1136??C and that of CaSO4 is 1462??C (using sealed tube methods to prevent decomposition of the sulphates); (5) calcium langbeinite (K2SO4??2CaSO4) is the only compound in the K2SO4CaSO4 binary system. This resolved discrepancies in the results of previous investigators; (6) a continuous solid solution series between congruently melting K2SOP4??2MgSO4 (langbeinite) and incongruently melting K2SO4??2CaSO4 (calcium langbeinite); (7) the liquidus in the ternary system consists of primary phase fields of K2SO4, MgSO4, CaSO4, langbeinite-calcium langbeinite solid solution, and CaSO4??3MgSO4. The CaSO4 field extends over a large portion of the system. Previously reported fields for the compounds (K2SO4??MgSO4??nCaSO4), K2SO4??3CaSO4 and K2SO4??CaSO4 were not found; (8) a minimum in the ternary system at: 740??C, 25% MgSO4, 6% CaSO4, 69% K2SO4; and ternary eutectics at 882??C, 49% MgSO4, 19% CaSO4, 32% K2SO4; and 880??, 67??5% MgSO4, 5% CaSO4, 27??5% K2SO4. ?? 1967.

  8. Caso Ouro Fino Saúde Animal Caso Ouro Fino Saúde Animal Ouro Fino Saúde Animal case

    Directory of Open Access Journals (Sweden)

    Bernardo Hauch Ribeiro de Castro

    2012-04-01

    Full Text Available O Caso Ouro Fino Saúde Animal ilustra uma tomada de decisão, pelos executivos da empresa, sobre a entrada em um novo mercado, de vacinas para bovinos. Diante da necessidade de dar um passo maior em direção ao crescimento sustentável, a empresa não poderia deixar de entrar nesse segmento, que representava mais de metade do mercado brasileiro de produtos veterinários. No entanto, era um passo arriscado. A principal questão do caso é avaliar as alternativas de comprar vacinas de terceiros ou produzir internamente suas próprias vacinas. A empresa do caso é a Ouro Fino Saúde Animal, empresa brasileira de produtos veterinários, instalada no Estado de São Paulo, com faturamento de mais de R$ 100 milhões anuais. Os dois principais personagens deste caso são os diretores financeiro e industrial da empresa. A situação passa-se em 2005. Como instrumento de ensino, o caso foi concebido para o ensino de estratégia em cursos de pós-graduação em administração, levando os alunos a avaliar vantagens e desvantagens de cada uma das alternativas. Como objetivo secundário, o caso propicia alguns elementos para uma estimativa da viabilidade financeira da opção de implantar uma nova unidade produtiva e a possibilidade de refletir sobre uma decisão já tomada, de entrada no novo mercado. Por fim, o caso traz uma série de informações sobre o mercado brasileiro e sobre o mercado mundial de produtos veterinários. É possível, com base nestes dados, trabalhar questões ligadas à segmentação e posicionamento da empresa no setor, ficando a critério do professor este tipo de uso.El Caso Ouro Fino Saúde Animal ilustra una toma de decisiones por los ejecutivos de la empresa, a la entrada en un nuevo mercado de las vacunas para el ganado. Ante la necesidad de dar un paso importante hacia el crecimiento sostenible, Ouro Fino Saúde Animal no podía dejar de entrar, ya que representaba más de la mitad del mercado de productos veterinarios

  9. Statistical estimation Monte Carlo for unreliability evaluation of highly reliable system

    International Nuclear Information System (INIS)

    Xiao Gang; Su Guanghui; Jia Dounan; Li Tianduo

    2000-01-01

    Based on analog Monte Carlo simulation, statistical Monte Carlo methods for unreliable evaluation of highly reliable system are constructed, including direct statistical estimation Monte Carlo method and weighted statistical estimation Monte Carlo method. The basal element is given, and the statistical estimation Monte Carlo estimators are derived. Direct Monte Carlo simulation method, bounding-sampling method, forced transitions Monte Carlo method, direct statistical estimation Monte Carlo and weighted statistical estimation Monte Carlo are used to evaluate unreliability of a same system. By comparing, weighted statistical estimation Monte Carlo estimator has smallest variance, and has highest calculating efficiency

  10. Applications of Monte Carlo method in Medical Physics

    International Nuclear Information System (INIS)

    Diez Rios, A.; Labajos, M.

    1989-01-01

    The basic ideas of Monte Carlo techniques are presented. Random numbers and their generation by congruential methods, which underlie Monte Carlo calculations are shown. Monte Carlo techniques to solve integrals are discussed. The evaluation of a simple monodimensional integral with a known answer, by means of two different Monte Carlo approaches are discussed. The basic principles to simualate on a computer photon histories reduce variance and the current applications in Medical Physics are commented. (Author)

  11. Age and gender as risk factors for the transmission of HIV in a sample of drug users of Porto Alegre, Brazil Idade e gênero como fatores de risco para a transmissão do HIV em uma amostra de usuários de drogas, Porto Alegre, Brasil

    Directory of Open Access Journals (Sweden)

    Raquel De Boni

    2002-09-01

    Full Text Available Objective: To verify the association between age and gender regarding HIV seropositivity in drug users who seek public health centers in Porto Alegre, Brazil. Methods: The authors designed a cross-sectional study with a convenience sampling of 695 men and women aged above 15, who reported recent drug use and risk behaviors to HIV exposure. We used a standard questionnaire (CRA, Brazilian version of the RAB, Risk Assessment Battery to assess risk behaviors and we collected blood for HIV testing. Results: Most individuals were males (75,8%, with a mean age of 29.4 years, less than seven years of schooling (42,4%, and family income equal or superior to four minimum wages (46%. There was no significant association between gender and seropositivity. Multivariate analyses showed that individuals aged above 30 had a three-fold increased odds of being seropositive over subjects aged 20 or less. Intravenous drug users who had been using drugs since 1980 had five-fold odds of seropositivity and those who had been using them in the month prior to the interview had four-fold odds. Discussion: Subjects aged more than 30 showed higher odds of seropositivity than the younger group. This is possibly due to a higher use of intravenous cocaine and to having more risk behaviors along their lifetime. There was no difference in seropositivity between genders, what differs from current data of other studies, if we take into consideration that rates of populational seropositivity among women have increased, mostly among drug users, who are, therefore, at 'double risk'. The development of further studies is mandatory in order to assess gender and age as risk factors for seropositivity, whether to confirm or to deny these findings, and to plan specific strategies for high-risk groups.Objetivo: Verificar se idade e gênero estão relacionados à soropositividade para HIV em usuários de drogas que procuram centros de atendimento em saúde de Porto Alegre. Método: Estudo

  12. Multilevel sequential Monte Carlo samplers

    KAUST Repository

    Beskos, Alexandros; Jasra, Ajay; Law, Kody; Tempone, Raul; Zhou, Yan

    2016-01-01

    In this article we consider the approximation of expectations w.r.t. probability distributions associated to the solution of partial differential equations (PDEs); this scenario appears routinely in Bayesian inverse problems. In practice, one often has to solve the associated PDE numerically, using, for instance finite element methods which depend on the step-size level . hL. In addition, the expectation cannot be computed analytically and one often resorts to Monte Carlo methods. In the context of this problem, it is known that the introduction of the multilevel Monte Carlo (MLMC) method can reduce the amount of computational effort to estimate expectations, for a given level of error. This is achieved via a telescoping identity associated to a Monte Carlo approximation of a sequence of probability distributions with discretization levels . ∞>h0>h1⋯>hL. In many practical problems of interest, one cannot achieve an i.i.d. sampling of the associated sequence and a sequential Monte Carlo (SMC) version of the MLMC method is introduced to deal with this problem. It is shown that under appropriate assumptions, the attractive property of a reduction of the amount of computational effort to estimate expectations, for a given level of error, can be maintained within the SMC context. That is, relative to exact sampling and Monte Carlo for the distribution at the finest level . hL. The approach is numerically illustrated on a Bayesian inverse problem. © 2016 Elsevier B.V.

  13. Multilevel sequential Monte Carlo samplers

    KAUST Repository

    Beskos, Alexandros

    2016-08-29

    In this article we consider the approximation of expectations w.r.t. probability distributions associated to the solution of partial differential equations (PDEs); this scenario appears routinely in Bayesian inverse problems. In practice, one often has to solve the associated PDE numerically, using, for instance finite element methods which depend on the step-size level . hL. In addition, the expectation cannot be computed analytically and one often resorts to Monte Carlo methods. In the context of this problem, it is known that the introduction of the multilevel Monte Carlo (MLMC) method can reduce the amount of computational effort to estimate expectations, for a given level of error. This is achieved via a telescoping identity associated to a Monte Carlo approximation of a sequence of probability distributions with discretization levels . ∞>h0>h1⋯>hL. In many practical problems of interest, one cannot achieve an i.i.d. sampling of the associated sequence and a sequential Monte Carlo (SMC) version of the MLMC method is introduced to deal with this problem. It is shown that under appropriate assumptions, the attractive property of a reduction of the amount of computational effort to estimate expectations, for a given level of error, can be maintained within the SMC context. That is, relative to exact sampling and Monte Carlo for the distribution at the finest level . hL. The approach is numerically illustrated on a Bayesian inverse problem. © 2016 Elsevier B.V.

  14. Guideline of Monte Carlo calculation. Neutron/gamma ray transport simulation by Monte Carlo method

    CERN Document Server

    2002-01-01

    This report condenses basic theories and advanced applications of neutron/gamma ray transport calculations in many fields of nuclear energy research. Chapters 1 through 5 treat historical progress of Monte Carlo methods, general issues of variance reduction technique, cross section libraries used in continuous energy Monte Carlo codes. In chapter 6, the following issues are discussed: fusion benchmark experiments, design of ITER, experiment analyses of fast critical assembly, core analyses of JMTR, simulation of pulsed neutron experiment, core analyses of HTTR, duct streaming calculations, bulk shielding calculations, neutron/gamma ray transport calculations of the Hiroshima atomic bomb. Chapters 8 and 9 treat function enhancements of MCNP and MVP codes, and a parallel processing of Monte Carlo calculation, respectively. An important references are attached at the end of this report.

  15. Experience with the Monte Carlo Method

    Energy Technology Data Exchange (ETDEWEB)

    Hussein, E M.A. [Department of Mechanical Engineering University of New Brunswick, Fredericton, N.B., (Canada)

    2007-06-15

    Monte Carlo simulation of radiation transport provides a powerful research and design tool that resembles in many aspects laboratory experiments. Moreover, Monte Carlo simulations can provide an insight not attainable in the laboratory. However, the Monte Carlo method has its limitations, which if not taken into account can result in misleading conclusions. This paper will present the experience of this author, over almost three decades, in the use of the Monte Carlo method for a variety of applications. Examples will be shown on how the method was used to explore new ideas, as a parametric study and design optimization tool, and to analyze experimental data. The consequences of not accounting in detail for detector response and the scattering of radiation by surrounding structures are two of the examples that will be presented to demonstrate the pitfall of condensed.

  16. Experience with the Monte Carlo Method

    International Nuclear Information System (INIS)

    Hussein, E.M.A.

    2007-01-01

    Monte Carlo simulation of radiation transport provides a powerful research and design tool that resembles in many aspects laboratory experiments. Moreover, Monte Carlo simulations can provide an insight not attainable in the laboratory. However, the Monte Carlo method has its limitations, which if not taken into account can result in misleading conclusions. This paper will present the experience of this author, over almost three decades, in the use of the Monte Carlo method for a variety of applications. Examples will be shown on how the method was used to explore new ideas, as a parametric study and design optimization tool, and to analyze experimental data. The consequences of not accounting in detail for detector response and the scattering of radiation by surrounding structures are two of the examples that will be presented to demonstrate the pitfall of condensed

  17. Alterações de neuroimagem no parkinsonismo: estudo de cinco casos

    Directory of Open Access Journals (Sweden)

    Costa Maria do Desterro Leiros da

    2003-01-01

    Full Text Available Apresentamos 5 casos de parkinsonismo nos quais as imagens de ressonância magnética (RM mostram alterações em estruturas do circuito dos núcleos da base (NB. Foram estudados 5 pacientes: 3 do sexo masculino e 2 do feminino nos quais as manifestações clínicas tiveram início nas faixas estárias de 5 a 52 anos. Os exames de RM foram realizados com equipamento de 1.5T. As imagens nas sequências em T2 evidenciaram hipersinal bilateral e simétrico nas seguintes topografias: exclusivamente na substância negra (3 casos, exclusivamente no globo pálido (1 caso e envolvendo simultaneamente a substância negra, o globo pálido e as conexões nigro-estriatais (1 caso. Em três casos havia dados sugestivos de parkinsonismo secundário: um pelo herbicida glifosato; outro após vacinação anti-sarampo; outro após período de coma por encefalite. Nos dois casos restantes, o diagnóstico clínico era de doença de Parkinson (DP. Entretanto, nesses dois casos, os dados da RM permitiram excluir o diagnóstico inicial de DP. A RN foi fundamental para identificar casos de parkinsonismo secundário, embora em alguns destes pacientes não tenha sido possível determinar os agentes etiológicos.

  18. Monte Carlo alpha calculation

    Energy Technology Data Exchange (ETDEWEB)

    Brockway, D.; Soran, P.; Whalen, P.

    1985-01-01

    A Monte Carlo algorithm to efficiently calculate static alpha eigenvalues, N = ne/sup ..cap alpha..t/, for supercritical systems has been developed and tested. A direct Monte Carlo approach to calculating a static alpha is to simply follow the buildup in time of neutrons in a supercritical system and evaluate the logarithmic derivative of the neutron population with respect to time. This procedure is expensive, and the solution is very noisy and almost useless for a system near critical. The modified approach is to convert the time-dependent problem to a static ..cap alpha../sup -/eigenvalue problem and regress ..cap alpha.. on solutions of a/sup -/ k/sup -/eigenvalue problem. In practice, this procedure is much more efficient than the direct calculation, and produces much more accurate results. Because the Monte Carlo codes are intrinsically three-dimensional and use elaborate continuous-energy cross sections, this technique is now used as a standard for evaluating other calculational techniques in odd geometries or with group cross sections.

  19. Monte Carlo simulations of neutron scattering instruments

    International Nuclear Information System (INIS)

    Aestrand, Per-Olof; Copenhagen Univ.; Lefmann, K.; Nielsen, K.

    2001-01-01

    A Monte Carlo simulation is an important computational tool used in many areas of science and engineering. The use of Monte Carlo techniques for simulating neutron scattering instruments is discussed. The basic ideas, techniques and approximations are presented. Since the construction of a neutron scattering instrument is very expensive, Monte Carlo software used for design of instruments have to be validated and tested extensively. The McStas software was designed with these aspects in mind and some of the basic principles of the McStas software will be discussed. Finally, some future prospects are discussed for using Monte Carlo simulations in optimizing neutron scattering experiments. (R.P.)

  20. Linear filtering applied to Monte Carlo criticality calculations

    International Nuclear Information System (INIS)

    Morrison, G.W.; Pike, D.H.; Petrie, L.M.

    1975-01-01

    A significant improvement in the acceleration of the convergence of the eigenvalue computed by Monte Carlo techniques has been developed by applying linear filtering theory to Monte Carlo calculations for multiplying systems. A Kalman filter was applied to a KENO Monte Carlo calculation of an experimental critical system consisting of eight interacting units of fissile material. A comparison of the filter estimate and the Monte Carlo realization was made. The Kalman filter converged in five iterations to 0.9977. After 95 iterations, the average k-eff from the Monte Carlo calculation was 0.9981. This demonstrates that the Kalman filter has the potential of reducing the calculational effort of multiplying systems. Other examples and results are discussed

  1. Teratocarcinosarcoma rinosinusal: Reporte de un caso

    OpenAIRE

    González G,Claudia; Iñiguez,Rodrigo; Aranís Jiménez,Carolina; Castiblanco Galvis,Adriana

    2008-01-01

    Teratocarcinosarcoma rinosinusal es una neoplasia maligna infrecuente y rara, que combina elementos de teratoma y carcinosarcoma. Se compone de epitelio benigno o maligno (fibroblastos), mesénquima (cartílago, hueso o músculo liso) y elementos neurales. Hasta el año 2008 se han reportado un total de 63 casos de ubicación rinosinusal. Presentamos el caso de un teratocarcinosarcoma de fosa nasal, en un hombre de 67 años de edad, que consultó por obstrucción nasal rápidamente progresiva. La lesi...

  2. Burnup calculations using Monte Carlo method

    International Nuclear Information System (INIS)

    Ghosh, Biplab; Degweker, S.B.

    2009-01-01

    In the recent years, interest in burnup calculations using Monte Carlo methods has gained momentum. Previous burn up codes have used multigroup transport theory based calculations followed by diffusion theory based core calculations for the neutronic portion of codes. The transport theory methods invariably make approximations with regard to treatment of the energy and angle variables involved in scattering, besides approximations related to geometry simplification. Cell homogenisation to produce diffusion, theory parameters adds to these approximations. Moreover, while diffusion theory works for most reactors, it does not produce accurate results in systems that have strong gradients, strong absorbers or large voids. Also, diffusion theory codes are geometry limited (rectangular, hexagonal, cylindrical, and spherical coordinates). Monte Carlo methods are ideal to solve very heterogeneous reactors and/or lattices/assemblies in which considerable burnable poisons are used. The key feature of this approach is that Monte Carlo methods permit essentially 'exact' modeling of all geometrical detail, without resort to ene and spatial homogenization of neutron cross sections. Monte Carlo method would also be better for in Accelerator Driven Systems (ADS) which could have strong gradients due to the external source and a sub-critical assembly. To meet the demand for an accurate burnup code, we have developed a Monte Carlo burnup calculation code system in which Monte Carlo neutron transport code is coupled with a versatile code (McBurn) for calculating the buildup and decay of nuclides in nuclear materials. McBurn is developed from scratch by the authors. In this article we will discuss our effort in developing the continuous energy Monte Carlo burn-up code, McBurn. McBurn is intended for entire reactor core as well as for unit cells and assemblies. Generally, McBurn can do burnup of any geometrical system which can be handled by the underlying Monte Carlo transport code

  3. Dos estudios de casos

    Directory of Open Access Journals (Sweden)

    Hernán Guillermo Salazar Morales

    1989-04-01

    Full Text Available RESUMEN A continuación se presenta dos casos de estudio en donde se puede apreciar a la forma  como se establecen  las relaciones en una organización y lo que una DECISION  puede llegar a incidir en el desarrollo de las operaciones de una empresa. Decisiones basadas en la intuición, o en corazonadas, frecuentemente conducen en dirección equivocada, ocasionando pérdidas en tiempo, personal y dinero. El proceso de toma de decisiones deben ser TAREAS ESTRUCTURADAS que se sustenten con hechos. Su ejecución debe hacerse secuencialmente y cumplir con cada uno de sus pasos. El diseño de los  casos está orientado para que  sirvan como material de aplicación en la asignatura de  taller de planeación.

  4. Notas sobre la organización y ubicación del arte paleolítico en las cuevas del monte del Castillo (Puente Viesgo. Santander

    Directory of Open Access Journals (Sweden)

    Reynaldo GONZÁLEZ GARCÍA

    2009-10-01

    Full Text Available El presente artículo es un pequeño resumen de una parte de las conclusiones de los trabajos realizados en el transcurso del verano de 1985 en el Monte del Castillo. El propósito de los mismos se orientó en una total y exhaustiva revisión de la gran mayoría de figuras paleolíticas, tanto pintadas, grabadas, y en algún caso esculpidas, de las cuatro cuevas que forman este prestigioso y conocido conjunto troglodítico: La cueva de las Monedas, la cueva de la Pasiega, la cueva de las Chimeneas y la cueva del Castillo, en Puente Viesgo, Santander.

  5. Casos autoctones de esquistossomose mansonica em criancas de Recife, PE

    Directory of Open Access Journals (Sweden)

    Constanca Simoes Barbosa

    2013-08-01

    Full Text Available OBJETIVO : Investigar criadouros com moluscos hospedeiros e casos humanos autóctones para esquistossomose. MÉTODOS : Entre julho de 2010 e setembro de 2012 foram realizados: (1 levantamento malacológico para busca ativa de criadouros, coleta e identificação de caramujos Biomphalaria positivos para Schistosoma mansoni em Recife, PE; (2 inquérito de prevalência com 2.718 escolares, de sete a 14 anos, para diagnóstico de casos de esquistossomose; (3 exame clínico e ultrassonografia nos casos positivos para S. mansoni. Os casos foram investigados quanto à sua autoctonia e avaliados clinicamente. Os casos e criadouros foram georreferenciados e espacializados. RESULTADOS : Foram identificados 30 criadouros de B. straminea , quatro deles potenciais focos de transmissão, uma vez que os testes moleculares identificaram DNA de S. mansoni nos caramujos coletados. Foram diagnosticadas 14 crianças com esquistossomose; entre elas, cinco foram consideradas casos autóctones da doença. CONCLUSÕES : Ações emergenciais pela vigilância em saúde são necessárias para evitar que a esquistossomose se endemize em Recife, como acontece em localidades litorâneas do estado de Pernambuco.

  6. Flow-by-flow chemical stratigraphy and evolution of thirteen Serra Geral Group basalt flows from Vista Alegre, southernmost Brazil

    Directory of Open Access Journals (Sweden)

    Viter M Pinto

    2011-06-01

    Full Text Available The geochemical characterization of thirteen Serra Geral Group flows in the Vista Alegre region (RS-SC, southern Brazil, displays the homogeneous basaltic composition near 50 wt.% SiO2. Each of the five basal flows (Pitanga-type, high-Ti/Y ~600, TiO2 > 3 wt.% and eight upper flows (Paranapanema-type, medium Ti/Y ~400, TiO2 > 2 wt.% can be identified from their chemical composition; sets of flows have parallel variation in chemical composition. The flow-by-flowcorrelation in four sections shows the horizontal position of the flows in three profiles and an approximately 200-m downdrop of the Itapiranga block with respect to the Frederico Westphalen block. The world-class amethyst geode mineralization and the systematic presence of native copper in the basalts make the correlation of great geological and economic significance.A caracterização geoquímica de treze derrames do Grupo Serra Geral na região de Vista Alegre (RS e SC, sul do Brasil, exibe uma composição basáltica homogênea próxima a 50% de SiO2. Os cinco derrames basais são classificados quimicamente como tipo Pitanga (alto Ti/Y ~600 e TiO2 > 3 em peso percentual, os demais oito derrames possuem médio Ti/Y ~400 com TiO2 ~2.5 em peso percentual, sendo classificados como magma tipo Paranapanema. Cada derrame pode ser identificado através de sua composição química e correlacionado, com variação paralela entre os perfis estudados. A correlação derrame a derrame nos quatro perfis demonstra uma posição horizontal em três perfis e um rejeito vertical de aproximadamente 200 m do bloco Itapiranga em relação ao bloco Frederico Westphalen. A presença de jazidas de ametista em geodos e a sistemática ocorrência de cobre nativo nos basaltos da região tornam a correlação de grande significado geológico e econômico.

  7. Monte Carlo simulations for plasma physics

    International Nuclear Information System (INIS)

    Okamoto, M.; Murakami, S.; Nakajima, N.; Wang, W.X.

    2000-07-01

    Plasma behaviours are very complicated and the analyses are generally difficult. However, when the collisional processes play an important role in the plasma behaviour, the Monte Carlo method is often employed as a useful tool. For examples, in neutral particle injection heating (NBI heating), electron or ion cyclotron heating, and alpha heating, Coulomb collisions slow down high energetic particles and pitch angle scatter them. These processes are often studied by the Monte Carlo technique and good agreements can be obtained with the experimental results. Recently, Monte Carlo Method has been developed to study fast particle transports associated with heating and generating the radial electric field. Further it is applied to investigating the neoclassical transport in the plasma with steep gradients of density and temperatures which is beyong the conventional neoclassical theory. In this report, we briefly summarize the researches done by the present authors utilizing the Monte Carlo method. (author)

  8. Neutrino oscillation parameter sampling with MonteCUBES

    Science.gov (United States)

    Blennow, Mattias; Fernandez-Martinez, Enrique

    2010-01-01

    We present MonteCUBES ("Monte Carlo Utility Based Experiment Simulator"), a software package designed to sample the neutrino oscillation parameter space through Markov Chain Monte Carlo algorithms. MonteCUBES makes use of the GLoBES software so that the existing experiment definitions for GLoBES, describing long baseline and reactor experiments, can be used with MonteCUBES. MonteCUBES consists of two main parts: The first is a C library, written as a plug-in for GLoBES, implementing the Markov Chain Monte Carlo algorithm to sample the parameter space. The second part is a user-friendly graphical Matlab interface to easily read, analyze, plot and export the results of the parameter space sampling. Program summaryProgram title: MonteCUBES (Monte Carlo Utility Based Experiment Simulator) Catalogue identifier: AEFJ_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEFJ_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: GNU General Public Licence No. of lines in distributed program, including test data, etc.: 69 634 No. of bytes in distributed program, including test data, etc.: 3 980 776 Distribution format: tar.gz Programming language: C Computer: MonteCUBES builds and installs on 32 bit and 64 bit Linux systems where GLoBES is installed Operating system: 32 bit and 64 bit Linux RAM: Typically a few MBs Classification: 11.1 External routines: GLoBES [1,2] and routines/libraries used by GLoBES Subprograms used:Cat Id ADZI_v1_0, Title GLoBES, Reference CPC 177 (2007) 439 Nature of problem: Since neutrino masses do not appear in the standard model of particle physics, many models of neutrino masses also induce other types of new physics, which could affect the outcome of neutrino oscillation experiments. In general, these new physics imply high-dimensional parameter spaces that are difficult to explore using classical methods such as multi-dimensional projections and minimizations, such as those

  9. Monte Carlo methods and models in finance and insurance

    CERN Document Server

    Korn, Ralf; Kroisandt, Gerald

    2010-01-01

    Offering a unique balance between applications and calculations, Monte Carlo Methods and Models in Finance and Insurance incorporates the application background of finance and insurance with the theory and applications of Monte Carlo methods. It presents recent methods and algorithms, including the multilevel Monte Carlo method, the statistical Romberg method, and the Heath-Platen estimator, as well as recent financial and actuarial models, such as the Cheyette and dynamic mortality models. The authors separately discuss Monte Carlo techniques, stochastic process basics, and the theoretical background and intuition behind financial and actuarial mathematics, before bringing the topics together to apply the Monte Carlo methods to areas of finance and insurance. This allows for the easy identification of standard Monte Carlo tools and for a detailed focus on the main principles of financial and insurance mathematics. The book describes high-level Monte Carlo methods for standard simulation and the simulation of...

  10. Monte Carlo approaches to light nuclei

    International Nuclear Information System (INIS)

    Carlson, J.

    1990-01-01

    Significant progress has been made recently in the application of Monte Carlo methods to the study of light nuclei. We review new Green's function Monte Carlo results for the alpha particle, Variational Monte Carlo studies of 16 O, and methods for low-energy scattering and transitions. Through these calculations, a coherent picture of the structure and electromagnetic properties of light nuclei has arisen. In particular, we examine the effect of the three-nucleon interaction and the importance of exchange currents in a variety of experimentally measured properties, including form factors and capture cross sections. 29 refs., 7 figs

  11. Monte Carlo approaches to light nuclei

    Energy Technology Data Exchange (ETDEWEB)

    Carlson, J.

    1990-01-01

    Significant progress has been made recently in the application of Monte Carlo methods to the study of light nuclei. We review new Green's function Monte Carlo results for the alpha particle, Variational Monte Carlo studies of {sup 16}O, and methods for low-energy scattering and transitions. Through these calculations, a coherent picture of the structure and electromagnetic properties of light nuclei has arisen. In particular, we examine the effect of the three-nucleon interaction and the importance of exchange currents in a variety of experimentally measured properties, including form factors and capture cross sections. 29 refs., 7 figs.

  12. Os grupos na atenção básica de saúde de Porto Alegre: usos e modos de intervenção terapêutica Groups in basic health attention in Porto Alegre: uses and forms of therapeutic intervention

    Directory of Open Access Journals (Sweden)

    Rosana Maffacciolli

    2011-01-01

    Full Text Available Esse artigo trata dos grupos como modalidade assistencial utilizada pelos serviços de atenção básica de saúde. Oficinas, grupos de educação em saúde e palestras constituem atividades diferenciadas em relação aos demais atendimentos tradicionais. O estudo que subsidia essa discussão teve como objetivo conhecer o perfil da assistência, sob a forma de grupos, prestada nas unidades que compõem a rede básica de saúde de Porto Alegre. Foram abordados 116 profissionais, de um total de 124 serviços de saúde, entre os quais 96 desenvolviam grupos. Evidenciou-se que os mesmos têm relevância terapêutica por favorecerem a troca de informações e o aprendizado sobre aspectos relacionados à saúde/doença. Constituem práticas inclusivas, capazes de vincular os usuários aos serviços e de reformular o modelo assistencial vigente. Assim, constatou-se que a compreensão dessas práticas remete a sua dimensão de qualificação da assistência coletiva e também a uma dimensão estratégica de compensação de atendimento às crescentes demandas de saúde.This article deals with groups as an assistential modality used by the services of basic health attention. Workshops, health education groups, as well as, lectures are different activities done in relation to other traditional attendances. The study that is behind this discussion had as its main aim to know the profile of assistance, under groups' organization, offered in the Units which make part of the Basic Health Network in Porto Alegre. Within a total of 124 health services, 116 professionals were approached, among them, 96 developed groups. We could verify that the groups have therapeutic relevance because they favor the sharing of information and the learning about aspects which are related to the topic health-sickness. They constitute inclusive practices, which are able to create a link with the users and the service, as well as, to reformulate the existing assistential model

  13. Atresia biliar: continuamos operando tarde Biliary atresia: we still operate too late

    Directory of Open Access Journals (Sweden)

    Carlos O. Kieling

    2008-10-01

    Full Text Available OBJETIVO: Analisar a idade na cirurgia de crianças com atresia biliar e a sobrevida sem necessidade de transplante de fígado. O estudo foi realizado no Hospital de Clínicas de Porto Alegre. MÉTODOS: Foram revisados os prontuários dos pacientes operados entre 1982 e 2007, residentes no Rio Grande do Sul. RESULTADOS: Dos 112 casos estudados de crianças com atresia biliar, 38 (33,9% ocorreram de 1982 a 1989, 46 (41,1% de 1990 a 1999 e 28 (25,0% a partir de 2000. Em 12 (10,7% casos, não foi realizada a portoenterostomia. A idade na cirurgia variou de 25 a 297 dias (mediana: 80,5; IIQ25-75: 61,3-109,0 dias; em 20,5% dos casos, a idade das crianças foi menor do que 60 dias. Não houve diferença na idade, no momento do diagnóstico, entre as 3 décadas. Os pacientes do interior do estado (mediana: 87,0; IIQ25-75: 69,0-115,0 dias foram encaminhados significativamente (p = 0,007 mais tarde do que os da região metropolitana de Porto Alegre (RS (mediana: 68,0; IIQ25-75: 55,5-98,0 dias. A proporção de pacientes com menos de 60 dias foi significativamente menor (p = 0,013 nos oriundos do interior. A sobrevida com fígado nativo do total dos pacientes foi de 46,2% em 2 anos, diminuindo progressivamente até 15,3% em 20 anos. Os pacientes operados com menos de 60 dias tiveram maior sobrevida com fígado nativo (log rank OBJECTIVE: To analyze the age at surgery for children with biliary atresia and their survival periods without need for liver transplantation. The study was performed at Hospital de Clínicas de Porto Alegre, in Porto Alegre, state of Rio Grande do Sul, Brazil. METHODS: The medical records of patients operated between 1982 and 2007 who were residents of the state of Rio Grande do Sul were reviewed. RESULTS: Of the 112 cases of children with biliary atresia studied, 38 (33.9% occurred between 1982 and 1989, 46 (41.1% between 1990 and 1999 and 28 (25.0% after 2000. Portoenterostomy was not performed for 12 cases (10.7%. Age at surgery

  14. Simulation and the Monte Carlo method

    CERN Document Server

    Rubinstein, Reuven Y

    2016-01-01

    Simulation and the Monte Carlo Method, Third Edition reflects the latest developments in the field and presents a fully updated and comprehensive account of the major topics that have emerged in Monte Carlo simulation since the publication of the classic First Edition over more than a quarter of a century ago. While maintaining its accessible and intuitive approach, this revised edition features a wealth of up-to-date information that facilitates a deeper understanding of problem solving across a wide array of subject areas, such as engineering, statistics, computer science, mathematics, and the physical and life sciences. The book begins with a modernized introduction that addresses the basic concepts of probability, Markov processes, and convex optimization. Subsequent chapters discuss the dramatic changes that have occurred in the field of the Monte Carlo method, with coverage of many modern topics including: Markov Chain Monte Carlo, variance reduction techniques such as the transform likelihood ratio...

  15. Lecture 1. Monte Carlo basics. Lecture 2. Adjoint Monte Carlo. Lecture 3. Coupled Forward-Adjoint calculations

    Energy Technology Data Exchange (ETDEWEB)

    Hoogenboom, J.E. [Delft University of Technology, Interfaculty Reactor Institute, Delft (Netherlands)

    2000-07-01

    The Monte Carlo method is a statistical method to solve mathematical and physical problems using random numbers. The principle of the methods will be demonstrated for a simple mathematical problem and for neutron transport. Various types of estimators will be discussed, as well as generally applied variance reduction methods like splitting, Russian roulette and importance biasing. The theoretical formulation for solving eigenvalue problems for multiplying systems will be shown. Some reflections will be given about the applicability of the Monte Carlo method, its limitations and its future prospects for reactor physics calculations. Adjoint Monte Carlo is a Monte Carlo game to solve the adjoint neutron (or photon) transport equation. The adjoint transport equation can be interpreted in terms of simulating histories of artificial particles, which show properties of neutrons that move backwards in history. These particles will start their history at the detector from which the response must be estimated and give a contribution to the estimated quantity when they hit or pass through the neutron source. Application to multigroup transport formulation will be demonstrated Possible implementation for the continuous energy case will be outlined. The inherent advantages and disadvantages of the method will be discussed. The Midway Monte Carlo method will be presented for calculating a detector response due to a (neutron or photon) source. A derivation will be given of the basic formula for the Midway Monte Carlo method The black absorber technique, allowing for a cutoff of particle histories when reaching the midway surface in one of the calculations will be derived. An extension of the theory to coupled neutron-photon problems is given. The method will be demonstrated for an oil well logging problem, comprising a neutron source in a borehole and photon detectors to register the photons generated by inelastic neutron scattering. (author)

  16. Lecture 1. Monte Carlo basics. Lecture 2. Adjoint Monte Carlo. Lecture 3. Coupled Forward-Adjoint calculations

    International Nuclear Information System (INIS)

    Hoogenboom, J.E.

    2000-01-01

    The Monte Carlo method is a statistical method to solve mathematical and physical problems using random numbers. The principle of the methods will be demonstrated for a simple mathematical problem and for neutron transport. Various types of estimators will be discussed, as well as generally applied variance reduction methods like splitting, Russian roulette and importance biasing. The theoretical formulation for solving eigenvalue problems for multiplying systems will be shown. Some reflections will be given about the applicability of the Monte Carlo method, its limitations and its future prospects for reactor physics calculations. Adjoint Monte Carlo is a Monte Carlo game to solve the adjoint neutron (or photon) transport equation. The adjoint transport equation can be interpreted in terms of simulating histories of artificial particles, which show properties of neutrons that move backwards in history. These particles will start their history at the detector from which the response must be estimated and give a contribution to the estimated quantity when they hit or pass through the neutron source. Application to multigroup transport formulation will be demonstrated Possible implementation for the continuous energy case will be outlined. The inherent advantages and disadvantages of the method will be discussed. The Midway Monte Carlo method will be presented for calculating a detector response due to a (neutron or photon) source. A derivation will be given of the basic formula for the Midway Monte Carlo method The black absorber technique, allowing for a cutoff of particle histories when reaching the midway surface in one of the calculations will be derived. An extension of the theory to coupled neutron-photon problems is given. The method will be demonstrated for an oil well logging problem, comprising a neutron source in a borehole and photon detectors to register the photons generated by inelastic neutron scattering. (author)

  17. Síndrome de Isaacs: relato de três casos

    Directory of Open Access Journals (Sweden)

    SCOLA ROSANA HERMÍNIA

    1999-01-01

    Full Text Available Relatamos três casos de síndrome de Isaacs, que apresentavam mioquímia clínica, cãibras, dificuldades para o relaxamento muscular, hipertrofia muscular e aumento da sudorese. A eletromiografia de agulha mostrou atividade muscular contínua involuntária, caracterizada como descargas mioquímicas. Os estudos da condução nervosa foram normais. Biópsia de músculo, realizado nos três casos, mostrou atrofia de fibras do tipo 2. Dois casos apresentaram melhora clínica com a utilização de carbamazepina e um com prednisona.

  18. Monte Carlo Techniques for Nuclear Systems - Theory Lectures

    International Nuclear Information System (INIS)

    Brown, Forrest B.; Univ. of New Mexico, Albuquerque, NM

    2016-01-01

    These are lecture notes for a Monte Carlo class given at the University of New Mexico. The following topics are covered: course information; nuclear eng. review & MC; random numbers and sampling; computational geometry; collision physics; tallies and statistics; eigenvalue calculations I; eigenvalue calculations II; eigenvalue calculations III; variance reduction; parallel Monte Carlo; parameter studies; fission matrix and higher eigenmodes; doppler broadening; Monte Carlo depletion; HTGR modeling; coupled MC and T/H calculations; fission energy deposition. Solving particle transport problems with the Monte Carlo method is simple - just simulate the particle behavior. The devil is in the details, however. These lectures provide a balanced approach to the theory and practice of Monte Carlo simulation codes. The first lectures provide an overview of Monte Carlo simulation methods, covering the transport equation, random sampling, computational geometry, collision physics, and statistics. The next lectures focus on the state-of-the-art in Monte Carlo criticality simulations, covering the theory of eigenvalue calculations, convergence analysis, dominance ratio calculations, bias in Keff and tallies, bias in uncertainties, a case study of a realistic calculation, and Wielandt acceleration techniques. The remaining lectures cover advanced topics, including HTGR modeling and stochastic geometry, temperature dependence, fission energy deposition, depletion calculations, parallel calculations, and parameter studies. This portion of the class focuses on using MCNP to perform criticality calculations for reactor physics and criticality safety applications. It is an intermediate level class, intended for those with at least some familiarity with MCNP. Class examples provide hands-on experience at running the code, plotting both geometry and results, and understanding the code output. The class includes lectures & hands-on computer use for a variety of Monte Carlo calculations

  19. Monte Carlo Techniques for Nuclear Systems - Theory Lectures

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Forrest B. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Monte Carlo Methods, Codes, and Applications Group; Univ. of New Mexico, Albuquerque, NM (United States). Nuclear Engineering Dept.

    2016-11-29

    These are lecture notes for a Monte Carlo class given at the University of New Mexico. The following topics are covered: course information; nuclear eng. review & MC; random numbers and sampling; computational geometry; collision physics; tallies and statistics; eigenvalue calculations I; eigenvalue calculations II; eigenvalue calculations III; variance reduction; parallel Monte Carlo; parameter studies; fission matrix and higher eigenmodes; doppler broadening; Monte Carlo depletion; HTGR modeling; coupled MC and T/H calculations; fission energy deposition. Solving particle transport problems with the Monte Carlo method is simple - just simulate the particle behavior. The devil is in the details, however. These lectures provide a balanced approach to the theory and practice of Monte Carlo simulation codes. The first lectures provide an overview of Monte Carlo simulation methods, covering the transport equation, random sampling, computational geometry, collision physics, and statistics. The next lectures focus on the state-of-the-art in Monte Carlo criticality simulations, covering the theory of eigenvalue calculations, convergence analysis, dominance ratio calculations, bias in Keff and tallies, bias in uncertainties, a case study of a realistic calculation, and Wielandt acceleration techniques. The remaining lectures cover advanced topics, including HTGR modeling and stochastic geometry, temperature dependence, fission energy deposition, depletion calculations, parallel calculations, and parameter studies. This portion of the class focuses on using MCNP to perform criticality calculations for reactor physics and criticality safety applications. It is an intermediate level class, intended for those with at least some familiarity with MCNP. Class examples provide hands-on experience at running the code, plotting both geometry and results, and understanding the code output. The class includes lectures & hands-on computer use for a variety of Monte Carlo calculations

  20. Monte Carlo Transport for Electron Thermal Transport

    Science.gov (United States)

    Chenhall, Jeffrey; Cao, Duc; Moses, Gregory

    2015-11-01

    The iSNB (implicit Schurtz Nicolai Busquet multigroup electron thermal transport method of Cao et al. is adapted into a Monte Carlo transport method in order to better model the effects of non-local behavior. The end goal is a hybrid transport-diffusion method that combines Monte Carlo Transport with a discrete diffusion Monte Carlo (DDMC). The hybrid method will combine the efficiency of a diffusion method in short mean free path regions with the accuracy of a transport method in long mean free path regions. The Monte Carlo nature of the approach allows the algorithm to be massively parallelized. Work to date on the method will be presented. This work was supported by Sandia National Laboratory - Albuquerque and the University of Rochester Laboratory for Laser Energetics.

  1. Relatos significativos de professores e alunos na educação de jovens e adultos e sua auto-imagem e auto-estima

    OpenAIRE

    Antunes, Denise Dalpiaz

    2006-01-01

    Este estudo se propôs verificar através dos relatos de professores e alunos, Práticas Pedagógicas desenvolvidas na Educação de Jovens e Adultos e sua Auto-imagem e Autoestima, foram oito sujeitos entrevistados, sendo seis alunos adultos inseridos nas Totalidades 1 e Totalidade 2, no ensino de jovens e adultos do Município de Porto Alegre, e dois de seus professores. Como metodologia de pesquisa elegeu-se o estudo de caso, numa abordagem quantitativa-qualitativa. Como instrumentos utilizaram-s...

  2. Prevalência de talassemias e hemoglobinas variantes em pacientes com anemia não ferropênica

    OpenAIRE

    Wagner,Sandrine C.; Silvestri,Matheus C.; Bittar,Christina M.; Friedrisch,João R.; Silla,Lúcia M. R.

    2005-01-01

    Para estabelecer a freqüência de hemoglobinopatias e talassemias em pacientes com anemia não ferropênica foram estudados 58 casos de pacientes comprovadamente com anemia não ferropênica e 235 controles obtidos de pessoas sem anemia. Todas as amostras foram obtidas do Hospital de Clínicas de Porto Alegre (HCPA), RS, Brasil. As técnicas realizadas foram eletroforese em acetato de celulose, pH alcalino, pesquisa citológica de Hb H, HPLC, hemograma e ferritina. A análise dos dados realizada no gr...

  3. Rendimiento académico en Cálculo Diferencial e Integral I: análisis en las carreras de Ingeniería

    OpenAIRE

    Guilherme MENDES TOMAZ DOS SANTOS; Dirléia FANFA SARMENTO; Esther CALDIÑO MÉRIDA

    2016-01-01

    Este texto presenta los resultados de una investigación de estudio de caso, cuyo objetivo fue analizar el rendimiento académico de los estudiantes de la asignatura de Cálculo Diferencial e Integral I en las carreras de Ingeniería Ambiental, Civil, de la Computación, de Producción, Química y Telecomunicaciones, ofrecidos por una Institución de Educación Superior Comunitaria situada en la Región Metropolitana de Porto Alegre (Rio Grande do Sul/Brasil) en el segundo semestre lectivo de 2013. Los...

  4. Generalized hybrid Monte Carlo - CMFD methods for fission source convergence

    International Nuclear Information System (INIS)

    Wolters, Emily R.; Larsen, Edward W.; Martin, William R.

    2011-01-01

    In this paper, we generalize the recently published 'CMFD-Accelerated Monte Carlo' method and present two new methods that reduce the statistical error in CMFD-Accelerated Monte Carlo. The CMFD-Accelerated Monte Carlo method uses Monte Carlo to estimate nonlinear functionals used in low-order CMFD equations for the eigenfunction and eigenvalue. The Monte Carlo fission source is then modified to match the resulting CMFD fission source in a 'feedback' procedure. The two proposed methods differ from CMFD-Accelerated Monte Carlo in the definition of the required nonlinear functionals, but they have identical CMFD equations. The proposed methods are compared with CMFD-Accelerated Monte Carlo on a high dominance ratio test problem. All hybrid methods converge the Monte Carlo fission source almost immediately, leading to a large reduction in the number of inactive cycles required. The proposed methods stabilize the fission source more efficiently than CMFD-Accelerated Monte Carlo, leading to a reduction in the number of active cycles required. Finally, as in CMFD-Accelerated Monte Carlo, the apparent variance of the eigenfunction is approximately equal to the real variance, so the real error is well-estimated from a single calculation. This is an advantage over standard Monte Carlo, in which the real error can be underestimated due to inter-cycle correlation. (author)

  5. Mulheres cuidando de mulheres: um estudo sobre a Casa de Apoio Viva Maria, Porto Alegre, Rio Grande do Sul, Brasil Women caring for women: a study on the "Viva Maria" shelter, Porto Alegre, Rio Grande do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Stela Nazareth Meneghel

    2000-09-01

    Full Text Available Este trabalho teve como objetivo obter dados a respeito de mulheres vitimizadas que são atendidas em uma casa abrigo governamental denominada "Casa de Apoio Viva Maria", situada na cidade de Porto Alegre. Analisaram-se informações referentes a 110 mulheres que estiveram albergadas na casa durante os últimos dois anos - janeiro de 1996 a junho de 1998. O perfil da clientela mostrou que as mulheres eram jovens - em média, 29 anos; todas de baixa renda; 12% analfabetas, 21% negras, 80% delas com história de violência doméstica freqüente. Além disso, 18% destas mulheres retornaram à relação com o companheiro violento. Foram efetuadas visitas domiciliares a 34 ex-moradoras, convidando-as a participar de uma série de oficinas de avaliação. Um total de 118 pessoas - mães e crianças - integrou os três encontros de avaliação. Durante estes, os pesquisadores estimularam as participantes a expressar suas opiniões, percepções e sentimentos a respeito da experiência vivida na casa abrigo, assim como seus conceitos no tocante à violência. Finalmente, realizou-se um grupo focal com a equipe técnico-administrativa da casa. As trabalhadoras enfatizaram o quanto esse tipo de trabalho tem sido útil para seu desenvolvimento pessoal e auxiliou a modificar suas vidas.This research was conducted in Porto Alegre, Rio Grande do Sul, with a sample of battered women selected from a government shelter called the "Casa Viva Maria". We analyzed data on 110 women staying at the shelter during the previous two years (January 1996-June 1998. The profile of the women was as follows: abused women were young (mean age 29 years, all had low socioeconomic status, 12% were illiterate, 21% were black, 80% reported frequent abuse by their partners, and 18% had returned to violent homes. The researchers visited 34 former lodgers from the shelter and invited them to participate in a series of evaluation workshops. A total of 118 persons, including mothers and

  6. Is Monte Carlo embarrassingly parallel?

    Energy Technology Data Exchange (ETDEWEB)

    Hoogenboom, J. E. [Delft Univ. of Technology, Mekelweg 15, 2629 JB Delft (Netherlands); Delft Nuclear Consultancy, IJsselzoom 2, 2902 LB Capelle aan den IJssel (Netherlands)

    2012-07-01

    Monte Carlo is often stated as being embarrassingly parallel. However, running a Monte Carlo calculation, especially a reactor criticality calculation, in parallel using tens of processors shows a serious limitation in speedup and the execution time may even increase beyond a certain number of processors. In this paper the main causes of the loss of efficiency when using many processors are analyzed using a simple Monte Carlo program for criticality. The basic mechanism for parallel execution is MPI. One of the bottlenecks turn out to be the rendez-vous points in the parallel calculation used for synchronization and exchange of data between processors. This happens at least at the end of each cycle for fission source generation in order to collect the full fission source distribution for the next cycle and to estimate the effective multiplication factor, which is not only part of the requested results, but also input to the next cycle for population control. Basic improvements to overcome this limitation are suggested and tested. Also other time losses in the parallel calculation are identified. Moreover, the threading mechanism, which allows the parallel execution of tasks based on shared memory using OpenMP, is analyzed in detail. Recommendations are given to get the maximum efficiency out of a parallel Monte Carlo calculation. (authors)

  7. Is Monte Carlo embarrassingly parallel?

    International Nuclear Information System (INIS)

    Hoogenboom, J. E.

    2012-01-01

    Monte Carlo is often stated as being embarrassingly parallel. However, running a Monte Carlo calculation, especially a reactor criticality calculation, in parallel using tens of processors shows a serious limitation in speedup and the execution time may even increase beyond a certain number of processors. In this paper the main causes of the loss of efficiency when using many processors are analyzed using a simple Monte Carlo program for criticality. The basic mechanism for parallel execution is MPI. One of the bottlenecks turn out to be the rendez-vous points in the parallel calculation used for synchronization and exchange of data between processors. This happens at least at the end of each cycle for fission source generation in order to collect the full fission source distribution for the next cycle and to estimate the effective multiplication factor, which is not only part of the requested results, but also input to the next cycle for population control. Basic improvements to overcome this limitation are suggested and tested. Also other time losses in the parallel calculation are identified. Moreover, the threading mechanism, which allows the parallel execution of tasks based on shared memory using OpenMP, is analyzed in detail. Recommendations are given to get the maximum efficiency out of a parallel Monte Carlo calculation. (authors)

  8. Synthesis and luminescence properties of Eu"2"+ doped CaSO_4 phosphor

    International Nuclear Information System (INIS)

    Aghalte, G.A.; Dhoble, S.J.; Pawar, N.R.

    2016-01-01

    Eu"2"+ doped CaSO_4 Phosphor were synthesized by precipitation method. PL analysis of Eu"2"+ activated CaSO_4 phosphor exhibited characteristic emission properties; CaSO_4:Eu Phosphor has received considerable attention because of its high sensitivity to X-ray and λ ray irradiation. CaSO_4:Eu phosphor powder was successfully synthesized by the wet chemical co-precipitation method. The structure morphology and luminescent properties of the phosphor were characterized by X-ray diffraction, scanning electron microscopy and photoluminescence spectroscopy

  9. Carcinoma de pele no segmento craniofacial: Relato de 3 casos

    Directory of Open Access Journals (Sweden)

    Iana Lara Pereira Maia

    2014-09-01

    Full Text Available O câncer de pele é a neoplasia mais frequente no Brasil. O tipo histológico mais comum é o carcinoma basocelular (CBC, 70% dos casos, seguido pelo carcinoma espinocelular (CEC e pelo melanoma. Relatamos três carcinomas de pele no segmento crânio facial, evidenciando as abordagens cirúrgicas realizadas. No caso 1, apresenta-se um CBC em hemiface submetido à exérese com retalho V-Y. No caso 2, destaca-se um CEC em couro cabeludo submetido à exérese com retalhos de rotação e da vizinhança. No caso 3, relata-se um CBC na região pré-auricular e no dorso nasal submetido à exérese com retalho de Limberg e de Rieger.

  10. Perfil do usuário de crack e fatores relacionados à criminalidade em unidade de internação para desintoxicação no Hospital Psiquiátrico São Pedro de Porto Alegre (RS Profile of crack users and factors related to criminality at the detoxication ward at Hospital Psiquiátrico São Pedro, Porto Alegre, Brazil

    Directory of Open Access Journals (Sweden)

    Cristian Fabiano Guimarães

    2008-08-01

    Full Text Available INTRODUÇÃO: O presente estudo transversal foi realizado com usuários de crack do sexo masculino internados na Unidade de Desintoxicação do Hospital Psiquiátrico São Pedro de Porto Alegre (RS no período de março a dezembro de 2007. O objetivo do presente estudo foi identificar o perfil sociodemográfico e de consumo de substâncias psicoativas e a presença de conduta anti-social, sintomas de ansiedade e de depressão em usuários de crack internados na Unidade de Desintoxicação do Hospital Psiquiátrico São Pedro de Porto Alegre (RS, bem como verificar fatores associados à criminalidade nessa clientela. MÉTODO: Trinta sujeitos participaram do estudo, e os instrumentos utilizados foram: questionário sociodemográfico e de avaliação do consumo de substâncias psicoativas e de antecedentes criminais com 55 questões, Mini-Exame do Estado Mental, Inventário Beck de Ansiedade, Inventário Beck de Depressão, Fagerström Test for Nicotine Dependence e Escala Analógico-Visual de Fissura. RESULTADOS: Os principais resultados apontam para uma população de adultos jovens, de cor/raça branca, com idade média de 27,3 anos e em situação de subemprego ou desemprego. A presença de antecedentes criminais foi observada em 40% da amostra e está associada a maior fissura (U = 58,00; p = 0,035, a mais sintomas de ansiedade (U = 56,50; p = 0,028 e de depressão (U = 47,00; p = 0,009. CONCLUSÕES: É freqüente a presença de antecedentes criminais em dependentes de crack e esta variável está relacionada a mais ansiedade, depressão e fissura. Estudos deste tipo permitem ampliar o conhecimento da população atendida, para delinear de forma mais efetiva o plano terapêutico para esta clientela.INTRODUCTION: This cross-sectional study was carried out with 30 crack users admitted at the male detoxication ward at Hospital Psiquiátrico São Pedro, in Porto Alegre, Brazil, from March to December, 2007. The objective of the present study was

  11. Mapeamento dos fragmentos de vegetação florestal nativa da bacia hidrográfica do rio Alegre, Espírito Santo, a partir de imagens do satélite IKONOS II Native forest fragmentation mapping of the Alegre river watershed, Espirito Santo State, Brazil, using IKONOS II data

    Directory of Open Access Journals (Sweden)

    Melchior Carlos do Nascimento

    2006-06-01

    Full Text Available O estudo teve como objetivos elaborar o mapa de uso da terra e diagnosticar, em nível de paisagem, os fragmentos de vegetação florestal nativa por meio da classificação visual da imagem do satélite IKONOS II. A pesquisa foi desenvolvida na bacia hidrográfica do rio Alegre, situada no extremo sul do Estado do Espírito Santo, Brasil. Foram mapeadas 12 classes de uso da terra, destacando-se 475 fragmentos florestais. As classes cafezal (2.086,2 ha, pastagem (14.130,1 ha e fragmento florestal (2.978,9 ha ocuparam 92,16% (19.195,2 ha da área total da bacia, que é de 20.819,8 ha. A maioria dos fragmentos florestais possui formas fortemente alongadas e área média de 6,3 ha. Também se constatou que a maior parte está sujeita a um elevado nível de perturbação, com 452 e 166 fragmentos florestais vizinhos às classes pastagem e cafezal, respectivamente.The main objective of this study was to create land use and diagnosis maps, at landscape level, of the native forest fragmentation through visual classification using IKONOS II data. The study was conducted in the river Alegre watershed, situated in the south region of State of Espirito Santo, Brazil. Twelve land use classes were mapped, pointing out 475 forest fragments. The classes of coffee plantation (2,086.2 ha, pasture (14,130.1 ha and forest fragmentation (2,978.9 ha occupied 92.16% (19,195.2 ha of the total study area, which was about 20,819.8 ha. The majority of the forest fragments presented strongly elongated shapes, with an average of 6.3 ha. It was also noticed that most of them presented a high level of disturbance, with 452 and 166 forest fragments neighboring the pasture and coffee plantation classes, respectively.

  12. Mean field simulation for Monte Carlo integration

    CERN Document Server

    Del Moral, Pierre

    2013-01-01

    In the last three decades, there has been a dramatic increase in the use of interacting particle methods as a powerful tool in real-world applications of Monte Carlo simulation in computational physics, population biology, computer sciences, and statistical machine learning. Ideally suited to parallel and distributed computation, these advanced particle algorithms include nonlinear interacting jump diffusions; quantum, diffusion, and resampled Monte Carlo methods; Feynman-Kac particle models; genetic and evolutionary algorithms; sequential Monte Carlo methods; adaptive and interacting Marko

  13. Variational Variance Reduction for Monte Carlo Criticality Calculations

    International Nuclear Information System (INIS)

    Densmore, Jeffery D.; Larsen, Edward W.

    2001-01-01

    A new variational variance reduction (VVR) method for Monte Carlo criticality calculations was developed. This method employs (a) a variational functional that is more accurate than the standard direct functional, (b) a representation of the deterministically obtained adjoint flux that is especially accurate for optically thick problems with high scattering ratios, and (c) estimates of the forward flux obtained by Monte Carlo. The VVR method requires no nonanalog Monte Carlo biasing, but it may be used in conjunction with Monte Carlo biasing schemes. Some results are presented from a class of criticality calculations involving alternating arrays of fuel and moderator regions

  14. Effect of a health education program in the oral health profile of preschool children: an experience in the public network of Porto Alegre, Brazil

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    Tatiana Stürmer Badalott

    2013-03-01

    Full Text Available Objectives: To estimate the effect of health promotion activities developed in a child education school, on the children’s oral health profile, relating oral manifestations to social, sanitary and feeding factors. Methods: Interventional, longitudinal and describing quantitative work, accomplished with 41 preschool children from four to six years old, living in the area assisted by a Family Health Team (Equipe de Saúde da Família-ESF in the city of Porto Alegre-RS. Diagnosis of dental caries and gingivitis was carried out through oral clinical examination at the beginning and at the end of the study. The dietary pattern was obtained by applying a questionnaire and the social-sanitary aspects of the families, from the records of File A in the Basic Health Care Information System (Sistema de Informação da Atenção Básica-SIAB. Results: Caries disease was diagnosed in 58.5% of the children, whose dmft index (total sum of decayed, extracted and filled teeth was 2.43. There was a decrease in the number of decayed teeth and an increase in extracted and filled teeth. The rates of visible plaque and gums bleeding got better. The social-sanitary aspects were standardized in the community, being not representative. The group presenting the highest dmft values followed a diet containing sugars, with viscous consistence and an intake frequency of four or more times a day. Conclusion: The activities of health promotion developed in the school partially changed the children’s oral conditions. There was a positive correlation between consistency, composition and frequency of diet and the presence of caries disease; on the other hand, there was no significant relation between social-sanitary conditions and the presence of oral diseases

  15. Prevalence of hepatitis C virus and human immunodeficiency virus in a group of patients newly diagnosed with active tuberculosis in Porto Alegre, Southern Brazil

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    Cintia Costi

    Full Text Available BACKGROUND Porto Alegre is the Brazilian state capital with second highest incidence of tuberculosis (TB and the highest proportion of people infected with human immunodeficiency virus (HIV among patients with TB. Hepatitis C virus (HCV infection increases the risk of anti-TB drug-induced hepatotoxicity, which may result in discontinuation of the therapy. OBJECTIVES The aim of this study was (i to estimate prevalence of HCV and HIV in a group of patients newly diagnosed with active TB in a public reference hospital in Porto Alegre and (ii to compare demographic, behavioural, and clinical characteristics of patients in relation to their HCV infection status. METHODS One hundred and thirty-eight patients with TB were tested for anti-HCV antibody, HCV RNA, and anti-HIV1/2 antibody markers. HCV RNA from real-time polymerase chain reaction (PCR-positive samples was submitted to reverse transcription and PCR amplification. The 5′ non-coding region of the HCV genome was sequenced, and genotypes of HCV isolates were determined. FINDINGS Anti-HCV antibody, HCV RNA, and anti-HIV antibodies were detected in 27 [20%; 95% confidence interval (CI, 13-26%], 17 (12%; 95% CI, 7-18%, and 34 (25%; 95% CI, 17-32% patients, respectively. HCV isolates belonged to genotypes 1 (n = 12 and 3 (n = 4. Some characteristics were significantly more frequent in patients infected with HCV. Among them, non-white individuals, alcoholics, users of illicit drugs, imprisoned individuals, and those with history of previous TB episode were more commonly infected with HCV (p < 0.05. MAIN CONCLUSIONS HCV screening, including detection of anti-HCV antibody and HCV RNA, will be important to improving the management of co-infected patients, given their increased risk of developing TB treatment-related hepatotoxicity.

  16. Prevalence of hepatitis C virus and human immunodeficiency virus in a group of patients newly diagnosed with active tuberculosis in Porto Alegre, Southern Brazil.

    Science.gov (United States)

    Costi, Cintia; Grandi, Tarciana; Halon, Maria Laura; Silva, Márcia Susana Nunes; Silva, Cláudia Maria Dornelles da; Gregianini, Tatiana Schäffer; Possuelo, Lia Gonçalves; Jarczewski, Carla Adriane; Niel, Christian; Rossetti, Maria Lucia Rosa

    2017-04-01

    Porto Alegre is the Brazilian state capital with second highest incidence of tuberculosis (TB) and the highest proportion of people infected with human immunodeficiency virus (HIV) among patients with TB. Hepatitis C virus (HCV) infection increases the risk of anti-TB drug-induced hepatotoxicity, which may result in discontinuation of the therapy. The aim of this study was (i) to estimate prevalence of HCV and HIV in a group of patients newly diagnosed with active TB in a public reference hospital in Porto Alegre and (ii) to compare demographic, behavioural, and clinical characteristics of patients in relation to their HCV infection status. One hundred and thirty-eight patients with TB were tested for anti-HCV antibody, HCV RNA, and anti-HIV1/2 antibody markers. HCV RNA from real-time polymerase chain reaction (PCR)-positive samples was submitted to reverse transcription and PCR amplification. The 5' non-coding region of the HCV genome was sequenced, and genotypes of HCV isolates were determined. Anti-HCV antibody, HCV RNA, and anti-HIV antibodies were detected in 27 [20%; 95% confidence interval (CI), 13-26%], 17 (12%; 95% CI, 7-18%), and 34 (25%; 95% CI, 17-32%) patients, respectively. HCV isolates belonged to genotypes 1 (n = 12) and 3 (n = 4). Some characteristics were significantly more frequent in patients infected with HCV. Among them, non-white individuals, alcoholics, users of illicit drugs, imprisoned individuals, and those with history of previous TB episode were more commonly infected with HCV (p < 0.05). HCV screening, including detection of anti-HCV antibody and HCV RNA, will be important to improving the management of co-infected patients, given their increased risk of developing TB treatment-related hepatotoxicity.

  17. Effect of a health education program in the oral health profile of preschool children: an experience in the public network of Porto Alegre, Brazil

    Directory of Open Access Journals (Sweden)

    Tatiana Stürmer Badalotti

    2013-08-01

    Full Text Available Objectives: To estimate the effect of health promotion activities developed in a child education school, on the children’s oral health profile, relating oral manifestations to social, sanitary and feeding factors. Methods: Interventional, longitudinal and describing quantitative work, accomplished with 41 preschool children from four to six years old, living in the area assisted by a Family Health Team (Equipe de Saúde da Família-ESF in the city of Porto Alegre-RS. Diagnosis of dental caries and gingivitis was carried out through oral clinical examination at the beginning and at the end of the study. The dietary pattern was obtained by applying a questionnaire and the social-sanitary aspects of the families, from the records of File A in the Basic Health Care Information System (Sistema de Informação da Atenção Básica-SIAB. Results: Caries disease was diagnosed in 58.5% of the children, whose dmft index (total sum of decayed, extracted and filled teeth was 2.43. There was a decrease in the number of decayed teeth and an increase in extracted and filled teeth. The rates of visible plaque and gums bleeding got better. The social-sanitary aspects were standardized in the community, being not representative. The group presenting the highest dmft values followed a diet containing sugars, with viscous consistence and an intake frequency of four or more times a day. Conclusion: The activities of health promotion developed in the school partially changed the children’s oral conditions. There was a positive correlation between consistency, composition and frequency of diet and the presence of caries disease; on the other hand, therewas no significant relation between social sanitary conditions and the presence of oral diseases.

  18. Monte Carlo Solutions for Blind Phase Noise Estimation

    Directory of Open Access Journals (Sweden)

    Çırpan Hakan

    2009-01-01

    Full Text Available This paper investigates the use of Monte Carlo sampling methods for phase noise estimation on additive white Gaussian noise (AWGN channels. The main contributions of the paper are (i the development of a Monte Carlo framework for phase noise estimation, with special attention to sequential importance sampling and Rao-Blackwellization, (ii the interpretation of existing Monte Carlo solutions within this generic framework, and (iii the derivation of a novel phase noise estimator. Contrary to the ad hoc phase noise estimators that have been proposed in the past, the estimators considered in this paper are derived from solid probabilistic and performance-determining arguments. Computer simulations demonstrate that, on one hand, the Monte Carlo phase noise estimators outperform the existing estimators and, on the other hand, our newly proposed solution exhibits a lower complexity than the existing Monte Carlo solutions.

  19. Síndrome de Asperger: relato de um caso

    Directory of Open Access Journals (Sweden)

    Letícia Viana Pereira

    2012-04-01

    Full Text Available Objetivo: O presente estudo tem como real objetivo o relato de um caso de Síndrome de Asperger comprado às características descritas na literatura. Metodologia: A partir de um relato de um caso atendido na Clínica Escola de Fonoaudiologia do Centro Universitário Metodista Izabela Hendrix, determinadas características foram comparadas com o descrito na literatura pertinente. Os trabalhos foram lidos, fichados e agrupados, segundos algumas características de abordagem, para posterior análise e comparação com o caso clínico relatado. Discussão e resultados: As crianças com Síndrome de Asperger são, em geral, diferentes entre si. Freqüentemente procedimentos realizados que podem ser indicados para uma criança seriam inadequados para outra. Assim, sugestões apresentadas pela literatura devem ser consideradas para melhorar a assistência à criança, como a compreensão mais abrangente e a reflexão aprofundada em relação a cada caso em específico. Conclusão: O acompanhamento e tratamento fonoaudiológico nesses casos, é de suma importância para o desenvolvimento o mais próximo possível do considerado formal na linguagem e na comunicação destes indivíduos. Vivências clínicas mostram as estratégias que podem ser sugeridas para estas crianças, lembrando que casa criança possui suas particularidades, que devem sempre ser levadas em consideração.

  20. UMA TEORÍA CAUSAL PARA LOS CASOS FREGE

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    ABEL WAJNERMAN PAZ

    2015-06-01

    Full Text Available Fodor ha argumentado a favor de un par de tesis que pueden caracterizarse como constituyendo un dilema: Por un lado, si adoptamos una teoría funcional para los conceptos explicamos semánticamente los casos Frege pero caemos en el holismo semántico. Por otro lado, si adoptamos una teoría causal/informacional evitamos el holismo pero no explicamos los casos Frege semánticamente. Fodor (por ej, 1994, 1998 y 2008 intenta evitar la segunda parte del dilema argumentando que los casos de Frege pueden tener una explicación sintáctica y no semántica. En este trabajo intentaré ofrecer una salida alternativa al dilema fodoriano. Propondré una explicación semántica de los casos Frege que incorpora tanto elementos de una teoría causal como de una de rol funcional. Afirmaré que el contenido cognitivo o estrecho de un concepto (el tipo de contenido aparentemente exigido por los casos Frege es el conjunto de contenidos causales/informacionales de las representaciones que figuran en su rol funcional. Considero que individuar a las representaciones en los roles por medio de sus contenidos causales permite evitar el holismo (evitando el proceso de ramsificación típicamente empleado para individuar a los roles y que identificar el contenido cognitivo con contenidos causales/informacionales de las representaciones en los roles permite evitar el referencialismo de las propuestas causales (podemos distinguir sentido de referencia en términos causales.

  1. CHARACTERIZATION AND CLASSIFICATION OF FLOODPLAIN SOILS IN THE PORTO ALEGRE METROPOLITAN REGION, RS, BRAZIL

    Directory of Open Access Journals (Sweden)

    Luís de França da Silva Neto

    2015-10-01

    Full Text Available ABSTRACTIn the Porto Alegre metropolitan region (PAMR there are a significant proportion of floodplain soils, mainly Planosols and Gleysols, in relation to upland soils. This study aimed to evaluate the morphological, chemical and physical characteristics, and to classify floodplain soils in the PAMR. Six soil profiles were evaluated under different sedimentary lithologies and drainage classes, and samples were collected for chemical and physical analyzes. Two orders of mineral soils (Planosols and Gleysols and one order of organic soil (Organosols were identified. The soils were moderately deep to deep and stratified. In mineral soils hue ranged between 7.5YR and 2.5Y, with the occurrence of Bg, Btg or Cg gley horizons, while in organic soil the colors were neutral. Sand and silt were the predominant particle sizes according to the origin sedimentary deposits. The organic carbon content was negatively related to soil density and positively related to soil specific surface area and with soil cation exchange capacity. Soil chemical characterization showed expressive variation in bases, aluminum and sodium saturation. Ki index and Fe(CBD/Fe(H2SO4 ratio indicated a low soil weathering degree. The different sedimentary lithologies and the soil hydromorphism degree were the main factors related to differences in morphological, physical and chemical characteristics of soils in the PAMR.

  2. Monte Carlo based diffusion coefficients for LMFBR analysis

    International Nuclear Information System (INIS)

    Van Rooijen, Willem F.G.; Takeda, Toshikazu; Hazama, Taira

    2010-01-01

    A method based on Monte Carlo calculations is developed to estimate the diffusion coefficient of unit cells. The method uses a geometrical model similar to that used in lattice theory, but does not use the assumption of a separable fundamental mode used in lattice theory. The method uses standard Monte Carlo flux and current tallies, and the continuous energy Monte Carlo code MVP was used without modifications. Four models are presented to derive the diffusion coefficient from tally results of flux and partial currents. In this paper the method is applied to the calculation of a plate cell of the fast-spectrum critical facility ZEBRA. Conventional calculations of the diffusion coefficient diverge in the presence of planar voids in the lattice, but our Monte Carlo method can treat this situation without any problem. The Monte Carlo method was used to investigate the influence of geometrical modeling as well as the directional dependence of the diffusion coefficient. The method can be used to estimate the diffusion coefficient of complicated unit cells, the limitation being the capabilities of the Monte Carlo code. The method will be used in the future to confirm results for the diffusion coefficient obtained of the Monte Carlo code. The method will be used in the future to confirm results for the diffusion coefficient obtained with deterministic codes. (author)

  3. Enfermedad de creutzfeldt-jakob en el Perú: reporte de once casos

    Directory of Open Access Journals (Sweden)

    Luis Torres-Ramírez

    Full Text Available La enfermedad de Creutzfeldt-Jakob (ECJ es una enfermedad neurológica fatal producida por la isoforma patológica de la proteína priónica humana. Se reporta las características clínicas de seis casos de la forma esporádica de ECJ con diagnóstico definitivo por histopatología, y cinco casos con diagnóstico probable, en pacientes atendidos en el Instituto Nacional de Ciencias Neurológicas del Perú. La edad de inicio en los casos definitivos fue de 55,8 años y, en los probables, de 59,6 años, con predominio del sexo masculino. El tiempo de enfermedad fue de 8,8 meses. Se encontró un EEG típico en 50% de los casos definitivos y 80% de los probables. La proteína 14-3-3 en líquido cefalorraquídeo fue positiva en un caso probable y los hallazgos típicos en resonancia magnética se observaron en dos casos probables. Todos los casos cursaron con una evolución clínica típica de la enfermedad, y se considera el primer reporte de ECJ en el Perú

  4. A fotorreportagem sobre o sequestro dos uruguaios na revista Veja, de 1978 a 1980: a atuação dos fotógrafos e o papel da fotografia = The photographs about the uruguayans kidnapping in Veja magazine, from 1978 to 1980: the photographer`s job and the role of the photography

    Directory of Open Access Journals (Sweden)

    Proença, Caio de Carvalho

    2014-01-01

    Full Text Available O presente artigo procura compreender o papel que as fotografias assumiram no decorrer de diversas reportagens sobre o caso do sequestro clandestino de dois uruguaios, Lilián Celiberti e Universindo Díaz, em Porto Alegre, publicadas na revista semanal Veja de 1978 a 1980 durante atuação da Operação Condor. Com base nas obras de Lorenzo Vilches e Jorge Pedro Sousa, tentaremos desenvolver algumas questões como: Qual o papel da fotografia, perante textos e legendas, nas páginas da revista? Perante um contexto específico do fotojornalismo nos principais meios de comunicação ocidentais, qual a importância da produção dos fotógrafos Ricardo Chaves e Olívio Lamas no caso do sequestro? Estes e outros assuntos serão brevemente apresentados

  5. Computer system for Monte Carlo experimentation

    International Nuclear Information System (INIS)

    Grier, D.A.

    1986-01-01

    A new computer system for Monte Carlo Experimentation is presented. The new system speeds and simplifies the process of coding and preparing a Monte Carlo Experiment; it also encourages the proper design of Monte Carlo Experiments, and the careful analysis of the experimental results. A new functional language is the core of this system. Monte Carlo Experiments, and their experimental designs, are programmed in this new language; those programs are compiled into Fortran output. The Fortran output is then compiled and executed. The experimental results are analyzed with a standard statistics package such as Si, Isp, or Minitab or with a user-supplied program. Both the experimental results and the experimental design may be directly loaded into the workspace of those packages. The new functional language frees programmers from many of the details of programming an experiment. Experimental designs such as factorial, fractional factorial, or latin square are easily described by the control structures and expressions of the language. Specific mathematical modes are generated by the routines of the language

  6. Adubação do tomateiro - ensaios com diversos adubos nitrogenados Trials with the tomato plant using nitrogenous fertilizers

    Directory of Open Access Journals (Sweden)

    Humberto Ribeiro de Campos

    1963-01-01

    Full Text Available Ensaios de campo foram conduzidos em solo massapé da Estação Experimental de Monte Alegre do Sul, com o objetivo de investigar o efeito de quatro adubos nitrogenados - salitre do Chile, sulfato de amônio, Nitrocálcio e uréia - sôbre a produção do tomateiro (Lycopersicon esculentum Mill.. O nitrogênio foi aplicado em cobertura em quatro e em cinco parcelas iguais, para o primeiro e segundo ensaio, respectivamente. Não foram significativas as diferenças entre as produções proporcionadas pelas diversas formas de adubo nitrogenado usadas; houve, porém, diferença altamente significativa entre as produções obtidas com êsses adubos e a da testemunha.This paper presents the results of two fertilizer trials comparing nitrogen sources for the tomato plant. Both were carried out at the Monte Alegre Experiment Station, on a massape type of soil. The nitrogenous fertilizers were ammonium sulfate, Nitroealcio (ammonium nitrate plus calcium carbonate, Chile nitrate and urea. They were applied as top dressing four and five times, respectively, for the first and second experiments. The results of these tests indicated that there was no significant difference between the nitrogen sourees, but on the other hand its application was highly significant when compared with the control, except for the Chile nitrate.

  7. Thermoluminescent properties of CaSO4:Dy prepared by precipitation method

    International Nuclear Information System (INIS)

    Roman, J.; Rivera, T.; Azorin, J.

    2009-10-01

    This paper reports the synthesis and thermoluminescent (Tl) characterization of CaSO 4 :Dy obtained by the precipitation method. Thermoluminescent CaSO 4 :Dy powder and Teflon (PTFE) were mixed in order to obtain samples in pellets form. Samples of CaSO 4 :Dy were exposed to a radiation gamma source of 60 Co and 90 Sr beta particles. Tl response of CaSO 4 :Dy showed a glow curve with two peaks centered at around 164 and 302 C. Tl phosphor showed a good linearity in the range from 0.5 to 30 Gy. Fading of the Tl information was 5.19 % in 37 days and presented a standard deviation of 4% for reproducibility. (Author)

  8. Random Numbers and Monte Carlo Methods

    Science.gov (United States)

    Scherer, Philipp O. J.

    Many-body problems often involve the calculation of integrals of very high dimension which cannot be treated by standard methods. For the calculation of thermodynamic averages Monte Carlo methods are very useful which sample the integration volume at randomly chosen points. After summarizing some basic statistics, we discuss algorithms for the generation of pseudo-random numbers with given probability distribution which are essential for all Monte Carlo methods. We show how the efficiency of Monte Carlo integration can be improved by sampling preferentially the important configurations. Finally the famous Metropolis algorithm is applied to classical many-particle systems. Computer experiments visualize the central limit theorem and apply the Metropolis method to the traveling salesman problem.

  9. LCG Monte-Carlo Data Base

    CERN Document Server

    Bartalini, P.; Kryukov, A.; Selyuzhenkov, Ilya V.; Sherstnev, A.; Vologdin, A.

    2004-01-01

    We present the Monte-Carlo events Data Base (MCDB) project and its development plans. MCDB facilitates communication between authors of Monte-Carlo generators and experimental users. It also provides a convenient book-keeping and an easy access to generator level samples. The first release of MCDB is now operational for the CMS collaboration. In this paper we review the main ideas behind MCDB and discuss future plans to develop this Data Base further within the CERN LCG framework.

  10. Un Caso de Brucelosis en Bogotá

    Directory of Open Access Journals (Sweden)

    Raúl Paredes Manrique

    1948-11-01

    Full Text Available Después de más de un año de observación presentamos un caso de Fiebre Ondulante aparentemente infectado en Bogotá. Aunque no se trata del primer caso hallado en esta ciudad, tiene el interés de la escasa frecuencia de aparición de la enfermedad entre nosotros, de la comprobación del diagnòstico por métodos distintos de la aglutinación y per el tratamiento llevado a cabo.

  11. Alternative implementations of the Monte Carlo power method

    International Nuclear Information System (INIS)

    Blomquist, R.N.; Gelbard, E.M.

    2002-01-01

    We compare nominal efficiencies, i.e. variances in power shapes for equal running time, of different versions of the Monte Carlo eigenvalue computation, as applied to criticality safety analysis calculations. The two main methods considered here are ''conventional'' Monte Carlo and the superhistory method, and both are used in criticality safety codes. Within each of these major methods, different variants are available for the main steps of the basic Monte Carlo algorithm. Thus, for example, different treatments of the fission process may vary in the extent to which they follow, in analog fashion, the details of real-world fission, or may vary in details of the methods by which they choose next-generation source sites. In general the same options are available in both the superhistory method and conventional Monte Carlo, but there seems not to have been much examination of the special properties of the two major methods and their minor variants. We find, first, that the superhistory method is just as efficient as conventional Monte Carlo and, secondly, that use of different variants of the basic algorithms may, in special cases, have a surprisingly large effect on Monte Carlo computational efficiency

  12. Igo - A Monte Carlo Code For Radiotherapy Planning

    International Nuclear Information System (INIS)

    Goldstein, M.; Regev, D.

    1999-01-01

    The goal of radiation therapy is to deliver a lethal dose to the tumor, while minimizing the dose to normal tissues and vital organs. To carry out this task, it is critical to calculate correctly the 3-D dose delivered. Monte Carlo transport methods (especially the Adjoint Monte Carlo have the potential to provide more accurate predictions of the 3-D dose the currently used methods. IG0 is a Monte Carlo code derived from the general Monte Carlo Program - MCNP, tailored specifically for calculating the effects of radiation therapy. This paper describes the IG0 transport code, the PIG0 interface and some preliminary results

  13. Monte Carlo techniques for analyzing deep-penetration problems

    International Nuclear Information System (INIS)

    Cramer, S.N.; Gonnord, J.; Hendricks, J.S.

    1986-01-01

    Current methods and difficulties in Monte Carlo deep-penetration calculations are reviewed, including statistical uncertainty and recent adjoint optimization of splitting, Russian roulette, and exponential transformation biasing. Other aspects of the random walk and estimation processes are covered, including the relatively new DXANG angular biasing technique. Specific items summarized are albedo scattering, Monte Carlo coupling techniques with discrete ordinates and other methods, adjoint solutions, and multigroup Monte Carlo. The topic of code-generated biasing parameters is presented, including the creation of adjoint importance functions from forward calculations. Finally, current and future work in the area of computer learning and artificial intelligence is discussed in connection with Monte Carlo applications

  14. Odd-flavor Simulations by the Hybrid Monte Carlo

    CERN Document Server

    Takaishi, Tetsuya; Takaishi, Tetsuya; De Forcrand, Philippe

    2001-01-01

    The standard hybrid Monte Carlo algorithm is known to simulate even flavors QCD only. Simulations of odd flavors QCD, however, can be also performed in the framework of the hybrid Monte Carlo algorithm where the inverse of the fermion matrix is approximated by a polynomial. In this exploratory study we perform three flavors QCD simulations. We make a comparison of the hybrid Monte Carlo algorithm and the R-algorithm which also simulates odd flavors systems but has step-size errors. We find that results from our hybrid Monte Carlo algorithm are in agreement with those from the R-algorithm obtained at very small step-size.

  15. Quantum Monte Carlo approaches for correlated systems

    CERN Document Server

    Becca, Federico

    2017-01-01

    Over the past several decades, computational approaches to studying strongly-interacting systems have become increasingly varied and sophisticated. This book provides a comprehensive introduction to state-of-the-art quantum Monte Carlo techniques relevant for applications in correlated systems. Providing a clear overview of variational wave functions, and featuring a detailed presentation of stochastic samplings including Markov chains and Langevin dynamics, which are developed into a discussion of Monte Carlo methods. The variational technique is described, from foundations to a detailed description of its algorithms. Further topics discussed include optimisation techniques, real-time dynamics and projection methods, including Green's function, reptation and auxiliary-field Monte Carlo, from basic definitions to advanced algorithms for efficient codes, and the book concludes with recent developments on the continuum space. Quantum Monte Carlo Approaches for Correlated Systems provides an extensive reference ...

  16. Miastenia gravis infantil: relato de caso diagnosticado clinicamente

    Directory of Open Access Journals (Sweden)

    J. Rodrigo Lopes

    1985-09-01

    Full Text Available Registro de caso de miastenia infantil (forma congênita, em criança com 16 meses de idade. Ênfase ao diagnóstico diferencial das várias formas de miastenia na infância é dada durante a discussão do caso. O diagnóstico baseou-se na resposta imediata a teste com Neostigmina, seguido de terapêutica satisfatória com Mestinon.

  17. Track 4: basic nuclear science variance reduction for Monte Carlo criticality simulations. 6. Variational Variance Reduction for Monte Carlo Criticality Calculations

    International Nuclear Information System (INIS)

    Densmore, Jeffery D.; Larsen, Edward W.

    2001-01-01

    Recently, it has been shown that the figure of merit (FOM) of Monte Carlo source-detector problems can be enhanced by using a variational rather than a direct functional to estimate the detector response. The direct functional, which is traditionally employed in Monte Carlo simulations, requires an estimate of the solution of the forward problem within the detector region. The variational functional is theoretically more accurate than the direct functional, but it requires estimates of the solutions of the forward and adjoint source-detector problems over the entire phase-space of the problem. In recent work, we have performed Monte Carlo simulations using the variational functional by (a) approximating the adjoint solution deterministically and representing this solution as a function in phase-space and (b) estimating the forward solution using Monte Carlo. We have called this general procedure variational variance reduction (VVR). The VVR method is more computationally expensive per history than traditional Monte Carlo because extra information must be tallied and processed. However, the variational functional yields a more accurate estimate of the detector response. Our simulations have shown that the VVR reduction in variance usually outweighs the increase in cost, resulting in an increased FOM. In recent work on source-detector problems, we have calculated the adjoint solution deterministically and represented this solution as a linear-in-angle, histogram-in-space function. This procedure has several advantages over previous implementations: (a) it requires much less adjoint information to be stored and (b) it is highly efficient for diffusive problems, due to the accurate linear-in-angle representation of the adjoint solution. (Traditional variance-reduction methods perform poorly for diffusive problems.) Here, we extend this VVR method to Monte Carlo criticality calculations, which are often diffusive and difficult for traditional variance-reduction methods

  18. Non statistical Monte-Carlo

    International Nuclear Information System (INIS)

    Mercier, B.

    1985-04-01

    We have shown that the transport equation can be solved with particles, like the Monte-Carlo method, but without random numbers. In the Monte-Carlo method, particles are created from the source, and are followed from collision to collision until either they are absorbed or they leave the spatial domain. In our method, particles are created from the original source, with a variable weight taking into account both collision and absorption. These particles are followed until they leave the spatial domain, and we use them to determine a first collision source. Another set of particles is then created from this first collision source, and tracked to determine a second collision source, and so on. This process introduces an approximation which does not exist in the Monte-Carlo method. However, we have analyzed the effect of this approximation, and shown that it can be limited. Our method is deterministic, gives reproducible results. Furthermore, when extra accuracy is needed in some region, it is easier to get more particles to go there. It has the same kind of applications: rather problems where streaming is dominant than collision dominated problems

  19. Tres casos de odontomas

    Directory of Open Access Journals (Sweden)

    Salvador Javier Santos Medina

    2015-03-01

    Full Text Available Los odontomas son los tumores odontogénicos más comunes, casi siempre se diagnostican accidentalmente, en exámenes radiográficos; pueden sospecharse al retardar el brote dentario o producir maloclusiones. Se clasifican en odontomas compuestos y complejos, ambos constituidos por estructuras dentales como: esmalte, dentina, cemento y tejido pulpar. Su eliminación quirúrgica y la biopsia es el tratamiento de elección. El propósito de este trabajo es reportar tres casos de pacientes atendidos en el Hospital Pediátrico de Las Tunas, todos remitidos previamente por el ortodoncista. El primero, tipo compuesto, en un escolar de 9 años de edad, masculino, asociado a un 31 retenido; el segundo caso se trata de un gran odontoma complejo en una escolar de 11 años de edad, femenina, que produjo interferencia en el brote del 11 y el tercero compuesto; en un escolar de 10 años, masculino, en la línea media entre 11 y 21, con producción de diastema y brote del 12 por palatino. De ellos uno fue descubierto por un examen radiográfico de rutina y los otros dos sospechados por la maloclusión secundaria; todos se trataron quirúrgicamente. Estos casos demuestran la frecuencia de estos tumores en la cavidad bucal y la importancia de la realización de exámenes clínicos y radiográficos para su detección y tratamiento precoz, así como la importancia de la interrelación entre el ortodoncista y el maxilofacial en la resolución satisfactoria de esta entidad

  20. Sistemas tradicionais de manejo de sementes crioulas e o cenário brasileiro de proteção de variedades e certificação de orgânicos: estudo de caso da Rede Agroecológica Metropolitana de Porto Alegre, Rio Grande do Sul

    Directory of Open Access Journals (Sweden)

    Mariana Luiz Proença

    2016-12-01

    Full Text Available The traditional management systems of landrace seeds have undergone transformations in the current Brazilian scenario of protection of varieties and organic certifications. In this context, the objective of this work is to discuss the vulnerability of these systems when facing the legal frameworks that legitimize and empower the formal seeds system and imposes requirements for the certification process of organic products, from the case study of Organismo Participativo de Avaliação da Conformidade Orgânica, linked to the Associação dos Produtores da Rede Agroecológica Metropolitana (OPAC-RAMA of Porto Alegre, Rio Grande do Sul. It is noticed that, despite the strong pressure from the legislation of varieties protection on the processes of autonomy of the farmers trying to keep them within a hegemonic system of conventional production, the current legislation of organics is encouraging the resumption of handling landrace seeds. Therefore, farmers' rights to their knowledge and management practices of their landrace seeds are resisting and seeking to become viable, strengthening the agro-ecological processes.

  1. The vector and parallel processing of MORSE code on Monte Carlo Machine

    International Nuclear Information System (INIS)

    Hasegawa, Yukihiro; Higuchi, Kenji.

    1995-11-01

    Multi-group Monte Carlo Code for particle transport, MORSE is modified for high performance computing on Monte Carlo Machine Monte-4. The method and the results are described. Monte-4 was specially developed to realize high performance computing of Monte Carlo codes for particle transport, which have been difficult to obtain high performance in vector processing on conventional vector processors. Monte-4 has four vector processor units with the special hardware called Monte Carlo pipelines. The vectorization and parallelization of MORSE code and the performance evaluation on Monte-4 are described. (author)

  2. Mutagenic activity of airborne particulate matter from the urban area of Porto Alegre, Brazil

    Directory of Open Access Journals (Sweden)

    Vera Maria Ferrão Vargas

    1998-06-01

    Full Text Available The mutagenic activity of airborne particulate matter collected from three different sites within the urban area of Porto Alegre, Brazil, was investigated using a Salmonella/microsome assay. Samples were extracted by sonication, sequentially, with cyclohexane (CX, and dichloromethane (DCM, for a rough fractionation by polarity. The different fractions were tested for mutagenicity using Salmonella typhimurium strains TA98, with and without metabolic activation (S9 mix fraction, and TA98NR and TA98/1,8-DNP6, without metabolic activation. Mutagenic response was observed for frameshift strain TA98 in assays with and without metabolization for two sites (sites 2 and 3, which had considerable risk of environmental contamination by nonpolar (CX and/or moderately polar (DCM compounds. However, the values of revertants/m3 (rev/m3 were highest on the site subject to automobile exhaust (site 3 in assays without (9.56 rev/m3 and with metabolization (5.08 rev/m3. Maximum mutagenic activity was detected in the moderately polar fraction, decreasing after metabolization. Nevertheless, the nonpolar fractions (CX gave higher mutagenic activity in the presence of metabolization than in the absence of the S9 mix fraction. The responses observed for TA98NR and TA98/1,8-DNP6 strains suggest the activity of nitrocompounds.Foi investigada a atividade mutagênica de material particulado de amostras de ar coletadas em três diferentes locais dentro da área urbana da cidade de Porto Alegre, Brasil, através do ensaio Salmonella/microssoma. As amostras foram extraídas, em ultra-som, por fracionamento seqüencial de acordo com a polaridade, utilizando os solventes ciclohexano (CX e diclorometano (DCM. As diferentes frações foram testadas para mutagenicidade com as linhagens de Salmonella typhimurium TA98, em presença e ausência de ativação metabólica, e TA98NR e TA98/1,8-DNP6 em ausência de metabolização. Observou-se resposta mutagênica positiva, do tipo erro

  3. DIVERTÍCULO RECTAL. REPORTE DE UN CASO

    OpenAIRE

    Ángel-P, Alberto; Cardona-R, Danilo

    2017-01-01

    RESUMEN Introducción: La enfermedad diverticular del colon es frecuente en la población general, afectando al 50% de las personas mayores de 50 años, sin embargo, los divertículos ubicados en el recto son excepcionalmente raros. El objetivo de este estudio es informar el caso de un hombre de 67 años con enfermedad diverticular de colon sigmoides y colon transverso, con un divertículo rectal que se diagnosticó durante una colonoscopia ambulatoria. Caso clínico: Hombre de 67 años quien cons...

  4. La experiencia vivida de la mujer con enfermedad cardiovascular revascularizada: un estudio de caso

    Directory of Open Access Journals (Sweden)

    Inna Elida Florez Torres

    2016-09-01

    Full Text Available Objetivo: Comprender los significados de la experiencia vivida de una mujer revascularizada por enfermedad coronaria. Metodología: Estudio de caso fenomenológico con perspectiva de género, realizado en Cartagena, Colombia, entre febrero y junio de 2015. El análisis temático estuvo guiado por el método de Van Manen.  Resultados: La experiencia del cuerpo vivido significó percibir el anuncio de la enfermedad, prever los estragos sobre la corporeidad y feminidad, y anticiparse al sufrimiento. Las relaciones vividas significaron mantener un diálogo con un ser superior, una conexión de ayuda y dependencia con los cuidadores, Sentirse “al revés”: de cuidadora a cuidada. La experiencia del espacio vivido significó la entrada al quirófano: Atravesar la raya roja; la estancia en la unidad de cuidado intensivo, recibir un cuidado en soledad; salir de ella, la alegría de ganar una lucha. El tiempo vivido significó un punto de quiebre entre el antes y el ahora, un tránsito temporal de la experiencia, y recuperarse para mantener el rol. Las cosas vividas significaron una preocupación anticipada y una  pérdida del dominio del rol. Conclusión: Los significados otorgados a la experiencia permiten comprender su particularidad existencial. Durante la espera para la cirugía, la mujer se anticipa a los efectos sobre el rol social, sus dinámicas e interacciones; al enfrentarse al procedimiento, vive una situación límite. Intervenciones sensibles al género son requeridas para reconocer las necesidades de la mujer en los diferentes contextos de cuidado.

  5. Monte Carlo techniques for analyzing deep penetration problems

    International Nuclear Information System (INIS)

    Cramer, S.N.; Gonnord, J.; Hendricks, J.S.

    1985-01-01

    A review of current methods and difficulties in Monte Carlo deep-penetration calculations is presented. Statistical uncertainty is discussed, and recent adjoint optimization of splitting, Russian roulette, and exponential transformation biasing is reviewed. Other aspects of the random walk and estimation processes are covered, including the relatively new DXANG angular biasing technique. Specific items summarized are albedo scattering, Monte Carlo coupling techniques with discrete ordinates and other methods, adjoint solutions, and multi-group Monte Carlo. The topic of code-generated biasing parameters is presented, including the creation of adjoint importance functions from forward calculations. Finally, current and future work in the area of computer learning and artificial intelligence is discussed in connection with Monte Carlo applications

  6. Monte Carlo techniques for analyzing deep penetration problems

    International Nuclear Information System (INIS)

    Cramer, S.N.; Gonnord, J.; Hendricks, J.S.

    1985-01-01

    A review of current methods and difficulties in Monte Carlo deep-penetration calculations is presented. Statistical uncertainty is discussed, and recent adjoint optimization of splitting, Russian roulette, and exponential transformation biasing is reviewed. Other aspects of the random walk and estimation processes are covered, including the relatively new DXANG angular biasing technique. Specific items summarized are albedo scattering, Monte Carlo coupling techniques with discrete ordinates and other methods, adjoint solutions, and multi-group Monte Carlo. The topic of code-generated biasing parameters is presented, including the creation of adjoint importance functions from forward calculations. Finally, current and future work in the area of computer learning and artificial intelligence is discussed in connection with Monte Carlo applications. 29 refs

  7. Biases in Monte Carlo eigenvalue calculations

    Energy Technology Data Exchange (ETDEWEB)

    Gelbard, E.M.

    1992-12-01

    The Monte Carlo method has been used for many years to analyze the neutronics of nuclear reactors. In fact, as the power of computers has increased the importance of Monte Carlo in neutronics has also increased, until today this method plays a central role in reactor analysis and design. Monte Carlo is used in neutronics for two somewhat different purposes, i.e., (a) to compute the distribution of neutrons in a given medium when the neutron source-density is specified, and (b) to compute the neutron distribution in a self-sustaining chain reaction, in which case the source is determined as the eigenvector of a certain linear operator. In (b), then, the source is not given, but must be computed. In the first case (the ``fixed-source`` case) the Monte Carlo calculation is unbiased. That is to say that, if the calculation is repeated (``replicated``) over and over, with independent random number sequences for each replica, then averages over all replicas will approach the correct neutron distribution as the number of replicas goes to infinity. Unfortunately, the computation is not unbiased in the second case, which we discuss here.

  8. Biases in Monte Carlo eigenvalue calculations

    Energy Technology Data Exchange (ETDEWEB)

    Gelbard, E.M.

    1992-01-01

    The Monte Carlo method has been used for many years to analyze the neutronics of nuclear reactors. In fact, as the power of computers has increased the importance of Monte Carlo in neutronics has also increased, until today this method plays a central role in reactor analysis and design. Monte Carlo is used in neutronics for two somewhat different purposes, i.e., (a) to compute the distribution of neutrons in a given medium when the neutron source-density is specified, and (b) to compute the neutron distribution in a self-sustaining chain reaction, in which case the source is determined as the eigenvector of a certain linear operator. In (b), then, the source is not given, but must be computed. In the first case (the fixed-source'' case) the Monte Carlo calculation is unbiased. That is to say that, if the calculation is repeated ( replicated'') over and over, with independent random number sequences for each replica, then averages over all replicas will approach the correct neutron distribution as the number of replicas goes to infinity. Unfortunately, the computation is not unbiased in the second case, which we discuss here.

  9. Biases in Monte Carlo eigenvalue calculations

    International Nuclear Information System (INIS)

    Gelbard, E.M.

    1992-01-01

    The Monte Carlo method has been used for many years to analyze the neutronics of nuclear reactors. In fact, as the power of computers has increased the importance of Monte Carlo in neutronics has also increased, until today this method plays a central role in reactor analysis and design. Monte Carlo is used in neutronics for two somewhat different purposes, i.e., (a) to compute the distribution of neutrons in a given medium when the neutron source-density is specified, and (b) to compute the neutron distribution in a self-sustaining chain reaction, in which case the source is determined as the eigenvector of a certain linear operator. In (b), then, the source is not given, but must be computed. In the first case (the ''fixed-source'' case) the Monte Carlo calculation is unbiased. That is to say that, if the calculation is repeated (''replicated'') over and over, with independent random number sequences for each replica, then averages over all replicas will approach the correct neutron distribution as the number of replicas goes to infinity. Unfortunately, the computation is not unbiased in the second case, which we discuss here

  10. Justas, fiestas y protagonismos: Alegrías y placeres en El Victorial de Gutierre Díaz de Games = Jousting, Festivities and Prominence: Joy and Pleasures in Gutierre Díaz de Games’s El Victorial

    Directory of Open Access Journals (Sweden)

    María del Pilar Rábade Obradó

    2016-06-01

    Full Text Available Este trabajo pretende analizar cómo se reflejan dos emociones básicas, la alegría y el placer, en una crónica del siglo XV, concretamente El Victorial de Gutierre Díaz de Games. Como se trata de una biografía caballeresca, en sus páginas se plasma una visión particular de las dos citadas emociones. Así, la crónica ofrece un elenco de aquellas circunstancias en las que se suponía que los caballeros estaban en situación de experimentar el placer y la alegría. Esas circunstancias van desde las fiestas cortesanas hasta las victorias en batallas, sin olvidar el amor y la amistad.The purpose of this article is to analyze how two basic emotions like joy and pleasure were expressed in a fifteenth-century chronicle, namely El Victorial by Gutierre Díaz de Games. Since the chronicle is a chivalric biography, its pages highlight a particular vision of joy and pleasure. Consequently, the chronicle offers a variety of circumstances in which knights were meant to experience pleasure and happiness. These circumstances range from court festivities to victories in battles, as well as those involving love and friendship.

  11. Importance iteration in MORSE Monte Carlo calculations

    International Nuclear Information System (INIS)

    Kloosterman, J.L.; Hoogenboom, J.E.

    1994-01-01

    An expression to calculate point values (the expected detector response of a particle emerging from a collision or the source) is derived and implemented in the MORSE-SGC/S Monte Carlo code. It is outlined how these point values can be smoothed as a function of energy and as a function of the optical thickness between the detector and the source. The smoothed point values are subsequently used to calculate the biasing parameters of the Monte Carlo runs to follow. The method is illustrated by an example that shows that the obtained biasing parameters lead to a more efficient Monte Carlo calculation

  12. Importance iteration in MORSE Monte Carlo calculations

    International Nuclear Information System (INIS)

    Kloosterman, J.L.; Hoogenboom, J.E.

    1994-02-01

    An expression to calculate point values (the expected detector response of a particle emerging from a collision or the source) is derived and implemented in the MORSE-SGC/S Monte Carlo code. It is outlined how these point values can be smoothed as a function of energy and as a function of the optical thickness between the detector and the source. The smoothed point values are subsequently used to calculate the biasing parameters of the Monte Carlo runs to follow. The method is illustrated by an example, which shows that the obtained biasing parameters lead to a more efficient Monte Carlo calculation. (orig.)

  13. Angioedema recorrente – caso clínico

    Directory of Open Access Journals (Sweden)

    Sandrina Martins

    2016-02-01

    Full Text Available Introdução: O Angioedema hereditário (AEH é uma causa rara de angioedema recorrente, resultante de um defeito a nível do gene que codifica o inibidor do C1 esterase (C1 -INH. O edema envolve predominantemente os tecidos da face, membros, trato gastrointestinal e área genital. O envolvimento da laringe, apesar de menos frequente, constitui a expressão clínica mais grave, sendo potencialmente fatal. Caso clínico: Descreve -se o caso clínico de uma criança do sexo feminino de oito anos de idade referenciada à consulta de pediatria por episódios recorrentes de angioedema. O estudo efetuado revelou tratar -se de um caso de AEH. Discussão: O diagnóstico, estabelecido com base no quadro clínico, estudo do complemento e história familiar, é de importância fundamental considerando que o AEH é potencialmente fatal e exige uma terapêutica específica.

  14. Distrofia neuroaxonal infantil: relato de dois casos

    Directory of Open Access Journals (Sweden)

    SCOLA ROSANA HERMINIA

    1999-01-01

    Full Text Available Descrevemos dois casos de distrofia neuroaxonal infantil ou doença de Seitelberger, que é doença rara, neurodegenerativa, com herança autossômica recessiva. O primeiro caso, sexo masculino, com 8 anos de idade, apresentava atraso do desenvolvimento psicomotor, ataxia e fraqueza muscular. Ao exame físico foi encontrado nistagmo horizontal e vertical com palidez do disco óptico, hipotonia e arreflexia profunda. O segundo caso, sexo masculino, com 1 ano e 6 meses de idade, apresentava atraso do desenvolvimento psicomotor e convulsões. No exame físico, apresentava atrofia de nervo óptico, hipertonia e hiperreflexia. A biópsia de nervo sural de ambos os pacientes mostrou aumento dos axônios, compatível com distrofia neuroaxonal. As características clínicas pleomórficas, bem como os achados neurofisiológicos variáveis tornam difícil firmar o diagnóstico, o qual é ajudado pela confirmação anatomopatológica dos esferóides neuroaxonais.

  15. Drug use among drivers who drank on alcohol outlets from Porto Alegre, Brazil.

    Science.gov (United States)

    De Boni, Raquel B; Bastos, Francisco Inacio; de Vasconcellos, Mauricio; Oliveira, Fernanda; Limberger, Renata P; Pechansky, Flavio

    2014-01-01

    Driving under the influence of multiple substances is a public health concern, but there is little epidemiological data about their combined use and putative impact on driving in low and middle-income countries where traffic crashes have been clustering in recent years. The aim of this study is to estimate the prevalence of alcohol and drug use - as well as their associated factors - among drivers in the context of alcohol outlets (AOs). A probability three-stage sample survey was conducted in Porto Alegre, Brazil. Individuals who were leaving AO were screened, with the selection of 683 drivers who met the inclusion criteria. Drivers answered a structured interview, were breathalyzed, and had their saliva collected for drug screening. Prevalences were assessed using domain estimation and logistic regression models assessed covariates associated with substance use. Benzodiazepines 3.9% (SE 2.13) and cocaine 3.8% (SE 1.3) were the most frequently detected drugs in saliva. Among drivers who were going to drive, 11% had at least one drug identified by the saliva drug screening, 0.4% two, and 0.1% three drugs in addition to alcohol. In multivariable analyses, having a blood alcohol concentration (BAC)>0.06% was found to be associated with a 3.64 times (CI 95% 1.79-7.39) higher chance of drug detection, compared with interviewees with lower BACs. To drive under the influence of multiple substances is likely to be found in this setting, highlighting an association between harmful patterns of consume of alcohol and the misuse of other substances. Copyright © 2013 Elsevier Ltd. All rights reserved.

  16. Advanced Computational Methods for Monte Carlo Calculations

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Forrest B. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2018-01-12

    This course is intended for graduate students who already have a basic understanding of Monte Carlo methods. It focuses on advanced topics that may be needed for thesis research, for developing new state-of-the-art methods, or for working with modern production Monte Carlo codes.

  17. Manifestações patológicas em condomínios habitacionais de interesse social do município de Porto Alegre : levantamento e estudo sobre a recorrência

    OpenAIRE

    Omar da Silveira Neto

    2005-01-01

    Este trabalho tem por objetivo principal identificar manifestações patológicas recorrentes nos condomínios habitacionais realizados para populações de baixa renda pelo departamento municipal de habitação de Porto Alegre – DEMHAB - entre 1999 e 2003. Em um órgão público que tem como tarefa construir habitação de baixo custo em grande quantidade, se faz necessário um sistema de avaliação constante a fim de detectar falhas nos processos produtivos para, além de corrigi-las, realimentar os proces...

  18. Prospect on general software of Monte Carlo method

    International Nuclear Information System (INIS)

    Pei Lucheng

    1992-01-01

    This is a short paper on the prospect of Monte Carlo general software. The content consists of cluster sampling method, zero variance technique, self-improved method, and vectorized Monte Carlo method

  19. Strategije drevesnega preiskovanja Monte Carlo

    OpenAIRE

    VODOPIVEC, TOM

    2018-01-01

    Po preboju pri igri go so metode drevesnega preiskovanja Monte Carlo (ang. Monte Carlo tree search – MCTS) sprožile bliskovit napredek agentov za igranje iger: raziskovalna skupnost je od takrat razvila veliko variant in izboljšav algoritma MCTS ter s tem zagotovila napredek umetne inteligence ne samo pri igrah, ampak tudi v številnih drugih domenah. Čeprav metode MCTS združujejo splošnost naključnega vzorčenja z natančnostjo drevesnega preiskovanja, imajo lahko v praksi težave s počasno konv...

  20. Monte Carlo electron/photon transport

    International Nuclear Information System (INIS)

    Mack, J.M.; Morel, J.E.; Hughes, H.G.

    1985-01-01

    A review of nonplasma coupled electron/photon transport using Monte Carlo method is presented. Remarks are mainly restricted to linerarized formalisms at electron energies from 1 keV to 1000 MeV. Applications involving pulse-height estimation, transport in external magnetic fields, and optical Cerenkov production are discussed to underscore the importance of this branch of computational physics. Advances in electron multigroup cross-section generation is reported, and its impact on future code development assessed. Progress toward the transformation of MCNP into a generalized neutral/charged-particle Monte Carlo code is described. 48 refs

  1. Comprometimento medular por linfoma tipo Burkitt: relato de um caso

    Directory of Open Access Journals (Sweden)

    Murillo Côrtes Drummond

    1985-06-01

    Full Text Available Registro de caso de linfoma tipo Burkitt com comprometimento intrarraqueano em criança de três anos de idade. Considerações sobre esse tipo de tumor são feitas em função do caso observado e de dados da literatura.

  2. La jurisdicción del Tribunal Europeo de Derechos Humanos en casos de extradición. A propósito del caso Klein c. Rusia

    Directory of Open Access Journals (Sweden)

    Jan Schneider

    2010-12-01

    Full Text Available Analizamos la decisión del Tribunal Europeo de Derechos Humanos –TEDH– en el caso Klein c. Rusia de un ciudadano israelí requerido en extradición por Colombia para la ejecución de una sentencia por entrenamiento de grupos paramilitares. La decisión es presentada en el marco más amplio de la jurisprudencia del TEDH en casos de extradición desde Estados europeos a terceros Estados donde existe el riesgo de violación de los derechos humanos. Desarrollamos los principios que el TEDH aplica en estos casos y verificamos su aplicación en el caso Klein c. Rusia, tomando en cuenta también la opinión separada de los jueces minoritarios. En las conclusiones presentamos una perspectiva sobre cómo evitar la impunidad de perpetradores de violaciones de derechos humanos que no pueden ser extraditados por razones humanitarias.

  3. Carlo Caso (1940 - 2007)

    CERN Multimedia

    Leonardo Rossi

    Carlo Caso (1940 - 2007) Our friend and colleague Carlo Caso passed away on July 7th, after several months of courageous fight against cancer. Carlo spent most of his scientific career at CERN, taking an active part in the experimental programme of the laboratory. His long and fruitful involvement in particle physics started in the sixties, in the Genoa group led by G. Tomasini. He then made several experiments using the CERN liquid hydrogen bubble chambers -first the 2000HBC and later BEBC- to study various facets of the production and decay of meson and baryon resonances. He later made his own group and joined the NA27 Collaboration to exploit the EHS Spectrometer with a rapid cycling bubble chamber as vertex detector. Amongst their many achievements, they were the first to measure, with excellent precision, the lifetime of the charmed D mesons. At the start of the LEP era, Carlo and his group moved to the DELPHI experiment, participating in the construction and running of the HPC electromagnetic c...

  4. Afasia global sem hemiparesia: relato de caso

    OpenAIRE

    SILVA,MARCUS TULIUS TEIXEIRA DA; CAVALCANTI,JOSÉ LUÍS DE SÁ; MOREIRA,DENISE MADEIRA

    2000-01-01

    Afasia global geralmente é acompanhada por hemiparesia direita devido à extensão da lesão subjacente. Recentemente têm sido registrados na literatura casos em que tal síndrome ou não se acompanha do déficit motor ou este é apenas transitório, sendo esta condição conhecida como afasia global sem hemiparesia (AGSH). Relatamos caso de AGSH devido a infarto cerebral embólico cardiogênico, corroborando a tese de que esta condição pode ter valor preditivo para o diagnóstico de infartos embólicos....

  5. THE CITY IN CULTURAL JOURNALISM: A PERSPECTIVE OF PORTO ALEGRE IN THE COVERAGE OF DIÁRIO DO SUL (1986-1988

    Directory of Open Access Journals (Sweden)

    Sara Keller

    2012-06-01

    Full Text Available The article discusses the representation of the city in cultural journalism, examining how the cultural section of the newspaper Diário do Sul (which belonged to Gazeta Mercantil’s group offered a perspective of Porto Alegre from 1986 to 1988. The study summarizes a large part of the research results conducted by means of content analysis and thematic oral history techniques. It was perceived that the coverage, anchored in positivity, builds up the city as a place of consumption, of novelty, of updating and of the continuous movement of external flows. It reveals the geographic centralization of the circuit, investments in culture institutionalization and in the renewal of the city`s infrastructure. In the tension between the references that create belonging and those that expand the territory, journalism represents the city as the center of the show, inserted in a phenomenon of the recent decades, when cities became decisive agents in the realm of culture.

  6. Monte Carlo method for array criticality calculations

    International Nuclear Information System (INIS)

    Dickinson, D.; Whitesides, G.E.

    1976-01-01

    The Monte Carlo method for solving neutron transport problems consists of mathematically tracing paths of individual neutrons collision by collision until they are lost by absorption or leakage. The fate of the neutron after each collision is determined by the probability distribution functions that are formed from the neutron cross-section data. These distributions are sampled statistically to establish the successive steps in the neutron's path. The resulting data, accumulated from following a large number of batches, are analyzed to give estimates of k/sub eff/ and other collision-related quantities. The use of electronic computers to produce the simulated neutron histories, initiated at Los Alamos Scientific Laboratory, made the use of the Monte Carlo method practical for many applications. In analog Monte Carlo simulation, the calculation follows the physical events of neutron scattering, absorption, and leakage. To increase calculational efficiency, modifications such as the use of statistical weights are introduced. The Monte Carlo method permits the use of a three-dimensional geometry description and a detailed cross-section representation. Some of the problems in using the method are the selection of the spatial distribution for the initial batch, the preparation of the geometry description for complex units, and the calculation of error estimates for region-dependent quantities such as fluxes. The Monte Carlo method is especially appropriate for criticality safety calculations since it permits an accurate representation of interacting units of fissile material. Dissimilar units, units of complex shape, moderators between units, and reflected arrays may be calculated. Monte Carlo results must be correlated with relevant experimental data, and caution must be used to ensure that a representative set of neutron histories is produced

  7. Petrochemical characteristics of Serra do Meio alkaline granite (Campo Alegre de Lourdes - Bahia State)

    International Nuclear Information System (INIS)

    Matos Maia Leite, C. de; Froes, R.J.B.

    1989-01-01

    The Serra do Meio granite outcrops near the town of Campo Alegre de Lourdes, north-northeast of Bahia State. The granite is intrusive into micachists, which are correlatives of the Salgueiro-Cachoeirinha Group (Early Proterozoic), during early to the syn-tectonic shear phase. The geological setting also comprises a phosphatic rock-bearing carbonatitic complex and gabbroid complexes with one of the main world resources of Fe-Ti-V. The granite mineralogical composition grades from Aegerine-augite alkali-feldspar granite/syenites to Leuco alcali-feldspar granite. The geochemical analysis shows SiO 2 -enrichment (67 to 76%), in alkalis (Na 2 +K 2 O, 7,5 to 12,5%), Nb (up to 680ppm), Zr (up to 2,390ppm), Y (up to 250ppm) e REE (up to 796ppm). The geochemical behaviour is peculiar to alkaline series, denoting a silica-oversaturated, potassium-rich, magma. The chondrite-normalized REE patterns display a first group with smooth slopes from the La to Lu, and a second one with negative slopes. Negative Eu anomalies are displayed in all the patterns. The first group is HREE-enriched, with low fractionation ratios. Samples with milonytic fabrics and higher fractionation ratios are related to the second group, suggesting the interaction of metassomatic fluids and the alkaline magma. Discriminant diagrams for Nb, Y and Rb, coupled with geophysical data, point to an intrusive granite in an extensional within a plate tectonic setting of attenuated continental crust. (author) [pt

  8. Identification, antimicrobial resistance and genotypic characterization of Enterococcus spp. isolated in Porto Alegre, Brazil

    Science.gov (United States)

    Bender, Eduardo André; de Freitas, Ana Lúcia Peixoto; Reiter, Keli Cristine; Lutz, Larissa; Barth, Afonso Luís

    2009-01-01

    In the past two decades the members of the genus Enterococcus have emerged as important nosocomial pathogens worldwide. In the present study, we evaluated the antimicrobial resistance and genotypic characteristics of 203 Enterococcus spp. recovered from different clinical sources from two hospitals in Porto Alegre, Rio Grande do Sul, Brazil. The species were identified by conventional biochemical tests and by an automated system. The genetic diversity of E. faecalis presenting high-level aminoglycoside resistance (HLAR) was assessed by pulsed-field gel electrophoresis of chromosomal DNA after SmaI digestion. The E. faecalis was the most frequent specie (93.6%), followed by E. faecium (4.4%). The antimicrobial resistance profile was: 2.5% to ampicillin, 0.5% to vancomycin, 0.5% teicoplanin, 33% to chloramphenicol, 2% to nitrofurantoin, 66.1% to erythromycin, 66.5% to tetracycline, 24.6% to rifampicin, 30% to ciprofloxacin and 87.2% to quinupristin-dalfopristin. A total of 10.3% of the isolates proved to be HLAR to both gentamicin and streptomycin (HLR-ST/GE), with 23.6% resistant only to gentamicin (HLR-GE) and 37.4% only to streptomycin (HLR-ST). One predominant clonal group was found among E. faecalis HLR-GE/ST. The prevalence of resistance among beta-lactam antibiotics and glycopeptides was very low. However, in this study there was an increased number of HLR Enterococcus which may be spreading intra and inter-hospital. PMID:24031416

  9. Bayesian Optimal Experimental Design Using Multilevel Monte Carlo

    KAUST Repository

    Ben Issaid, Chaouki; Long, Quan; Scavino, Marco; Tempone, Raul

    2015-01-01

    Experimental design is very important since experiments are often resource-exhaustive and time-consuming. We carry out experimental design in the Bayesian framework. To measure the amount of information, which can be extracted from the data in an experiment, we use the expected information gain as the utility function, which specifically is the expected logarithmic ratio between the posterior and prior distributions. Optimizing this utility function enables us to design experiments that yield the most informative data for our purpose. One of the major difficulties in evaluating the expected information gain is that the integral is nested and can be high dimensional. We propose using Multilevel Monte Carlo techniques to accelerate the computation of the nested high dimensional integral. The advantages are twofold. First, the Multilevel Monte Carlo can significantly reduce the cost of the nested integral for a given tolerance, by using an optimal sample distribution among different sample averages of the inner integrals. Second, the Multilevel Monte Carlo method imposes less assumptions, such as the concentration of measures, required by Laplace method. We test our Multilevel Monte Carlo technique using a numerical example on the design of sensor deployment for a Darcy flow problem governed by one dimensional Laplace equation. We also compare the performance of the Multilevel Monte Carlo, Laplace approximation and direct double loop Monte Carlo.

  10. Bayesian Optimal Experimental Design Using Multilevel Monte Carlo

    KAUST Repository

    Ben Issaid, Chaouki

    2015-01-07

    Experimental design is very important since experiments are often resource-exhaustive and time-consuming. We carry out experimental design in the Bayesian framework. To measure the amount of information, which can be extracted from the data in an experiment, we use the expected information gain as the utility function, which specifically is the expected logarithmic ratio between the posterior and prior distributions. Optimizing this utility function enables us to design experiments that yield the most informative data for our purpose. One of the major difficulties in evaluating the expected information gain is that the integral is nested and can be high dimensional. We propose using Multilevel Monte Carlo techniques to accelerate the computation of the nested high dimensional integral. The advantages are twofold. First, the Multilevel Monte Carlo can significantly reduce the cost of the nested integral for a given tolerance, by using an optimal sample distribution among different sample averages of the inner integrals. Second, the Multilevel Monte Carlo method imposes less assumptions, such as the concentration of measures, required by Laplace method. We test our Multilevel Monte Carlo technique using a numerical example on the design of sensor deployment for a Darcy flow problem governed by one dimensional Laplace equation. We also compare the performance of the Multilevel Monte Carlo, Laplace approximation and direct double loop Monte Carlo.

  11. Le Comte de Monte Cristo: da literatura ao cinema

    OpenAIRE

    Caravela, Natércia Murta Silva

    2008-01-01

    A presente dissertação discute o diálogo estabelecido entre literatura e cinema no tratamento da personagem principal – um homem traído que se vinga de forma cruel dos seus inimigos – na obra literária Le Comte de Monte-Cristo, de Alexandre Dumas, e nas três adaptações fílmicas escolhidas: Le Comte de Monte-Cristo de Robert Vernay (1943); The count of Monte Cristo de David Greene (1975) e The count of Monte Cristo de Kevin Reynolds (2002). O projecto centra-se na análise da ...

  12. Mielopatia necrotizante e neoplasias: registro clinico-patologico de dois casos

    Directory of Open Access Journals (Sweden)

    Marcos R. G. de Freitas

    1983-06-01

    Full Text Available São relatados dois casos de mielopatia transversa subaguda associada a tumores malignos. O primeiro paciente apresentava neoplasia de células reticulares histiocitárias e o segundo, carcinoma renal. Os autores fazem revisão dos casos similares descritos na literatura. As alterações anátomo-patológicas medulares encontradas foram semelhantes às descritas nos relatos prévios, sendo que no primeiro caso havia também intenso infiltrado inflamatório perivascular e a presença de astrócitos bizarros. Tais alterações encontradas sugerem ser esta afecção de natureza viral.

  13. Development of Thermoluminescence Dosimeter CaSO4:Dy as Personal and Environmental Dosimeters

    International Nuclear Information System (INIS)

    Hasnel Sofyan

    2009-01-01

    Development of personal and environmental dosimeters using material phosphors of CaSO 4 :Dy powder in form capillary glass and disc teflon thermoluminescence (TL) dosimeter have been done. TL dosimeter CaSO 4 :Dy powder used can record dose response less than 0.01 mGy. Fading of TL dosimeter capillary glass after 29 days is 25%. In 1 batch, making of CaSO 4 :Dy powder can obtain 2 groups of dosimeter capillaries with coefficient variance smaller than 10%. This discrepancy caused difference in powder making and reading of the TL dosimeter. TL dosimeter CaSO 4 :Dy teflon disc with dia. 5 mm and 0.8 mm thickness is homogeneous mixture between phosphor powder with dia. 80 to 150 mesh and teflon powder dia. 20 μm. The composition of CaSO 4 :Dy and teflon in TL dosimeter influence sensitivity of the dosimeter. It’ concluded that in order to obtain optimal sensitivity of TL dosimeter, the composition of CaSO 4 :Dy and teflon is 3 and 1 with pressured of disc in 700 MPa. (author).

  14. Present status of transport code development based on Monte Carlo method

    International Nuclear Information System (INIS)

    Nakagawa, Masayuki

    1985-01-01

    The present status of development in Monte Carlo code is briefly reviewed. The main items are the followings; Application fields, Methods used in Monte Carlo code (geometry spectification, nuclear data, estimator and variance reduction technique) and unfinished works, Typical Monte Carlo codes and Merits of continuous energy Monte Carlo code. (author)

  15. Gênero, história e violência: casos de homicídio contra mulheres em Montes Claros – 1985 – 1993

    Directory of Open Access Journals (Sweden)

    Maria Clarice Rodrigues de Souza

    2011-01-01

    Full Text Available Gender violence is any act or conduct based on gender which causes death, damage or suffering physical, sexual or psychological, both in the public and private sphere. Observing this definition, this article brings out violence against women occurred in Montes Claros/MG during the period from 1985 to 1993. During this period, the visibility of violence against women earns an enhancement, creation and inauguration of the Women’s Police Stations in various locations in Brazil. The methodology used is the discourse analysis and the sources are criminal proceedings and oral interviews. From the analysis of murder crime, we see how they are grounded in gender differences and still rooted in our society. / A violência de gênero consiste em qualquer ação ou conduta baseada no gênero que cause morte, dano ou sofrimento físico, sexual ou psicológico, tanto em âmbito público como privado. Partindo dessa definição, o presente artigo traz à tona a violência contra mulheres ocorrida em Montes Claros/MG no período compreendido entre 1985 a 1993. Neste período, a visibilidade à violência contra mulheres ganha um reforço: a criação e inauguração das Delegacias de Mulheres em várias localidades do Brasil. A metodologia utilizada foi a análise de discurso e as fontes foram os Processos-crime e Entrevistas Orais. A partir da análise de crimes de homicídio, observamos como os mesmos são alicerçados nas diferenças de gênero enraizadas e ainda presentes em nossa sociedade.

  16. Successful vectorization - reactor physics Monte Carlo code

    International Nuclear Information System (INIS)

    Martin, W.R.

    1989-01-01

    Most particle transport Monte Carlo codes in use today are based on the ''history-based'' algorithm, wherein one particle history at a time is simulated. Unfortunately, the ''history-based'' approach (present in all Monte Carlo codes until recent years) is inherently scalar and cannot be vectorized. In particular, the history-based algorithm cannot take advantage of vector architectures, which characterize the largest and fastest computers at the current time, vector supercomputers such as the Cray X/MP or IBM 3090/600. However, substantial progress has been made in recent years in developing and implementing a vectorized Monte Carlo algorithm. This algorithm follows portions of many particle histories at the same time and forms the basis for all successful vectorized Monte Carlo codes that are in use today. This paper describes the basic vectorized algorithm along with descriptions of several variations that have been developed by different researchers for specific applications. These applications have been mainly in the areas of neutron transport in nuclear reactor and shielding analysis and photon transport in fusion plasmas. The relative merits of the various approach schemes will be discussed and the present status of known vectorization efforts will be summarized along with available timing results, including results from the successful vectorization of 3-D general geometry, continuous energy Monte Carlo. (orig.)

  17. Insulinoma canino: relato de caso

    Directory of Open Access Journals (Sweden)

    L. Padovani

    Full Text Available RESUMO O insulinoma é um tumor das células β do pâncreas, que têm a função de produzir e secretar insulina e, geralmente são malignos em cães. O presente trabalho descreve o diagnóstico e o manejo terapêutico de três casos de insulinoma. Os sinais clínicos dos animais relatados variaram de acordo com a severidade e a duração da hipoglicemia. O diagnóstico presuntivo se deu através dos sinais clínicos e da dosagem de insulina sérica no momento de mais intensa hipoglicemia e, o diagnóstico definitivo foi obtido por meio de exame histopatológico nos três casos relatados. O tratamento realizado variou de acordo com a intensidade dos sinais clínicos.

  18. Bayesian phylogeny analysis via stochastic approximation Monte Carlo

    KAUST Repository

    Cheon, Sooyoung; Liang, Faming

    2009-01-01

    in simulating from the posterior distribution of phylogenetic trees, rendering the inference ineffective. In this paper, we apply an advanced Monte Carlo algorithm, the stochastic approximation Monte Carlo algorithm, to Bayesian phylogeny analysis. Our method

  19. Reflections on early Monte Carlo calculations

    International Nuclear Information System (INIS)

    Spanier, J.

    1992-01-01

    Monte Carlo methods for solving various particle transport problems developed in parallel with the evolution of increasingly sophisticated computer programs implementing diffusion theory and low-order moments calculations. In these early years, Monte Carlo calculations and high-order approximations to the transport equation were seen as too expensive to use routinely for nuclear design but served as invaluable aids and supplements to design with less expensive tools. The earliest Monte Carlo programs were quite literal; i.e., neutron and other particle random walk histories were simulated by sampling from the probability laws inherent in the physical system without distoration. Use of such analogue sampling schemes resulted in a good deal of time being spent in examining the possibility of lowering the statistical uncertainties in the sample estimates by replacing simple, and intuitively obvious, random variables by those with identical means but lower variances

  20. Notas sobre o fantasma nas toxicomanias

    Directory of Open Access Journals (Sweden)

    Walter Firmo de Oliveira Cruz

    Full Text Available O presente artigo foi apresentado na Jornada Clínica da Associação Psicanalítica de Porto Alegre - "A direção da cura nas toxicomanias: o sujeito em questão em outubro de 2003. Através da discussão de um caso clínico, busca evidenciar a importância da relação existente entre a fantasmática do sujeito e a escolha do objeto nas toxicomanias. Aborda ainda a toxicomania como sintoma da contemporaneidade, bem como traços da estética que a compõe.

  1. Violência nos relacionamentos afetivo-sexuais entre adolescentes de Porto Alegre, Rio Grande do Sul, Brasil: busca de ajuda e rede de apoio Violencia en las relaciones afectivo-sexuales entre adolescentes de Porto Alegre, Rio Grande do Sul, Brasil: búsqueda de ayuda y red de apoyo Violence in affective and sexual relationships among adolescents in Porto Alegre, Rio Grande do Sul State, Brazil: search for help and support networks

    Directory of Open Access Journals (Sweden)

    Marta Julia Marques Lopes

    2013-06-01

    Full Text Available Buscou-se analisar a rede de apoio referida pelos adolescentes no enfrentamento das situações de violência nas relações afetivo-sexuais. Utilizou-se abordagem quantitativa, para o inquérito epidemiológico, e qualitativa, para os dados das entrevistas e grupos focais. A amostra foi composta por 283 adolescentes de 15 a 19 anos de idade, estudantes do segundo ano do ensino médio de escolas públicas e particulares de Porto Alegre, Rio Grande do Sul, Brasil. Os dados quantitativos foram analisados por meio de descrição de frequências e da análise de associação entre variáveis. Para os dados qualitativos, utilizou-se o método de análise de conteúdo na modalidade temática. Os resultados mostram que apenas 5% dos adolescentes solicitaram ajuda para problemas decorrentes de violência e, quando o fizeram, procuraram principalmente amigos e familiares. Os profissionais de saúde foram pouco citados pelos jovens como fonte de ajuda. Destaca-se a necessidade de questionar as implicações do sistema de atenção à saúde na prevenção da violência e promoção da saúde dos adolescentes com vistas à adoção de relacionamentos saudáveis.Se analizó la red de apoyo informada por los adolescentes a la hora de enfrentarse a las situaciones de violencia en las relaciones afectivo-sexuales. Se utilizó un enfoque cuantitativo para la encuesta epidemiológica, y cualitativo para los datos de las entrevistas y grupos focales. La muestra estaba compuesta por 283 adolescentes de 15 a 19 años de edad, estudiantes del 2º año de enseñanza media de escuelas públicas y privadas de Porto Alegre, Rio Grande do Sul, Brasil. Los datos cuantitativos se analizaron a través de la descripción de frecuencias y del análisis de asociación entre variables. Para los datos cualitativos se utilizó el método de análisis de contenido en la modalidad temática. Los resultados muestran que solamente un 5% de los adolescentes solicitaron ayuda para

  2. Reconstruction of Monte Carlo replicas from Hessian parton distributions

    Energy Technology Data Exchange (ETDEWEB)

    Hou, Tie-Jiun [Department of Physics, Southern Methodist University,Dallas, TX 75275-0181 (United States); Gao, Jun [INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology,Department of Physics and Astronomy, Shanghai Jiao-Tong University, Shanghai 200240 (China); High Energy Physics Division, Argonne National Laboratory,Argonne, Illinois, 60439 (United States); Huston, Joey [Department of Physics and Astronomy, Michigan State University,East Lansing, MI 48824 (United States); Nadolsky, Pavel [Department of Physics, Southern Methodist University,Dallas, TX 75275-0181 (United States); Schmidt, Carl; Stump, Daniel [Department of Physics and Astronomy, Michigan State University,East Lansing, MI 48824 (United States); Wang, Bo-Ting; Xie, Ke Ping [Department of Physics, Southern Methodist University,Dallas, TX 75275-0181 (United States); Dulat, Sayipjamal [Department of Physics and Astronomy, Michigan State University,East Lansing, MI 48824 (United States); School of Physics Science and Technology, Xinjiang University,Urumqi, Xinjiang 830046 (China); Center for Theoretical Physics, Xinjiang University,Urumqi, Xinjiang 830046 (China); Pumplin, Jon; Yuan, C.P. [Department of Physics and Astronomy, Michigan State University,East Lansing, MI 48824 (United States)

    2017-03-20

    We explore connections between two common methods for quantifying the uncertainty in parton distribution functions (PDFs), based on the Hessian error matrix and Monte-Carlo sampling. CT14 parton distributions in the Hessian representation are converted into Monte-Carlo replicas by a numerical method that reproduces important properties of CT14 Hessian PDFs: the asymmetry of CT14 uncertainties and positivity of individual parton distributions. The ensembles of CT14 Monte-Carlo replicas constructed this way at NNLO and NLO are suitable for various collider applications, such as cross section reweighting. Master formulas for computation of asymmetric standard deviations in the Monte-Carlo representation are derived. A correction is proposed to address a bias in asymmetric uncertainties introduced by the Taylor series approximation. A numerical program is made available for conversion of Hessian PDFs into Monte-Carlo replicas according to normal, log-normal, and Watt-Thorne sampling procedures.

  3. Sampling from a polytope and hard-disk Monte Carlo

    International Nuclear Information System (INIS)

    Kapfer, Sebastian C; Krauth, Werner

    2013-01-01

    The hard-disk problem, the statics and the dynamics of equal two-dimensional hard spheres in a periodic box, has had a profound influence on statistical and computational physics. Markov-chain Monte Carlo and molecular dynamics were first discussed for this model. Here we reformulate hard-disk Monte Carlo algorithms in terms of another classic problem, namely the sampling from a polytope. Local Markov-chain Monte Carlo, as proposed by Metropolis et al. in 1953, appears as a sequence of random walks in high-dimensional polytopes, while the moves of the more powerful event-chain algorithm correspond to molecular dynamics evolution. We determine the convergence properties of Monte Carlo methods in a special invariant polytope associated with hard-disk configurations, and the implications for convergence of hard-disk sampling. Finally, we discuss parallelization strategies for event-chain Monte Carlo and present results for a multicore implementation

  4. Problems in radiation shielding calculations with Monte Carlo methods

    International Nuclear Information System (INIS)

    Ueki, Kohtaro

    1985-01-01

    The Monte Carlo method is a very useful tool for solving a large class of radiation transport problem. In contrast with deterministic method, geometric complexity is a much less significant problem for Monte Carlo calculations. However, the accuracy of Monte Carlo calculations is of course, limited by statistical error of the quantities to be estimated. In this report, we point out some typical problems to solve a large shielding system including radiation streaming. The Monte Carlo coupling technique was developed to settle such a shielding problem accurately. However, the variance of the Monte Carlo results using the coupling technique of which detectors were located outside the radiation streaming, was still not enough. So as to bring on more accurate results for the detectors located outside the streaming and also for a multi-legged-duct streaming problem, a practicable way of ''Prism Scattering technique'' is proposed in the study. (author)

  5. Cluster monte carlo method for nuclear criticality safety calculation

    International Nuclear Information System (INIS)

    Pei Lucheng

    1984-01-01

    One of the most important applications of the Monte Carlo method is the calculation of the nuclear criticality safety. The fair source game problem was presented at almost the same time as the Monte Carlo method was applied to calculating the nuclear criticality safety. The source iteration cost may be reduced as much as possible or no need for any source iteration. This kind of problems all belongs to the fair source game prolems, among which, the optimal source game is without any source iteration. Although the single neutron Monte Carlo method solved the problem without the source iteration, there is still quite an apparent shortcoming in it, that is, it solves the problem without the source iteration only in the asymptotic sense. In this work, a new Monte Carlo method called the cluster Monte Carlo method is given to solve the problem further

  6. Wielandt acceleration for MCNP5 Monte Carlo eigenvalue calculations

    International Nuclear Information System (INIS)

    Brown, F.

    2007-01-01

    Monte Carlo criticality calculations use the power iteration method to determine the eigenvalue (k eff ) and eigenfunction (fission source distribution) of the fundamental mode. A recently proposed method for accelerating convergence of the Monte Carlo power iteration using Wielandt's method has been implemented in a test version of MCNP5. The method is shown to provide dramatic improvements in convergence rates and to greatly reduce the possibility of false convergence assessment. The method is effective and efficient, improving the Monte Carlo figure-of-merit for many problems. In addition, the method should eliminate most of the underprediction bias in confidence intervals for Monte Carlo criticality calculations. (authors)

  7. Monte Carlo shielding analyses using an automated biasing procedure

    International Nuclear Information System (INIS)

    Tang, J.S.; Hoffman, T.J.

    1988-01-01

    A systematic and automated approach for biasing Monte Carlo shielding calculations is described. In particular, adjoint fluxes from a one-dimensional discrete ordinates calculation are used to generate biasing parameters for a Monte Carlo calculation. The entire procedure of adjoint calculation, biasing parameters generation, and Monte Carlo calculation has been automated. The automated biasing procedure has been applied to several realistic deep-penetration shipping cask problems. The results obtained for neutron and gamma-ray transport indicate that with the automated biasing procedure Monte Carlo shielding calculations of spent-fuel casks can be easily performed with minimum effort and that accurate results can be obtained at reasonable computing cost

  8. Applications of the Monte Carlo method in radiation protection

    International Nuclear Information System (INIS)

    Kulkarni, R.N.; Prasad, M.A.

    1999-01-01

    This paper gives a brief introduction to the application of the Monte Carlo method in radiation protection. It may be noted that an exhaustive review has not been attempted. The special advantage of the Monte Carlo method has been first brought out. The fundamentals of the Monte Carlo method have next been explained in brief, with special reference to two applications in radiation protection. Some sample current applications have been reported in the end in brief as examples. They are, medical radiation physics, microdosimetry, calculations of thermoluminescence intensity and probabilistic safety analysis. The limitations of the Monte Carlo method have also been mentioned in passing. (author)

  9. Pore-scale uncertainty quantification with multilevel Monte Carlo

    KAUST Repository

    Icardi, Matteo; Hoel, Haakon; Long, Quan; Tempone, Raul

    2014-01-01

    . Since there are no generic ways to parametrize the randomness in the porescale structures, Monte Carlo techniques are the most accessible to compute statistics. We propose a multilevel Monte Carlo (MLMC) technique to reduce the computational cost

  10. Current and future applications of Monte Carlo

    International Nuclear Information System (INIS)

    Zaidi, H.

    2003-01-01

    Full text: The use of radionuclides in medicine has a long history and encompasses a large area of applications including diagnosis and radiation treatment of cancer patients using either external or radionuclide radiotherapy. The 'Monte Carlo method'describes a very broad area of science, in which many processes, physical systems, and phenomena are simulated by statistical methods employing random numbers. The general idea of Monte Carlo analysis is to create a model, which is as similar as possible to the real physical system of interest, and to create interactions within that system based on known probabilities of occurrence, with random sampling of the probability density functions (pdfs). As the number of individual events (called 'histories') is increased, the quality of the reported average behavior of the system improves, meaning that the statistical uncertainty decreases. The use of the Monte Carlo method to simulate radiation transport has become the most accurate means of predicting absorbed dose distributions and other quantities of interest in the radiation treatment of cancer patients using either external or radionuclide radiotherapy. The same trend has occurred for the estimation of the absorbed dose in diagnostic procedures using radionuclides as well as the assessment of image quality and quantitative accuracy of radionuclide imaging. As a consequence of this generalized use, many questions are being raised primarily about the need and potential of Monte Carlo techniques, but also about how accurate it really is, what would it take to apply it clinically and make it available widely to the nuclear medicine community at large. Many of these questions will be answered when Monte Carlo techniques are implemented and used for more routine calculations and for in-depth investigations. In this paper, the conceptual role of the Monte Carlo method is briefly introduced and followed by a survey of its different applications in diagnostic and therapeutic

  11. Miopia aguda induzida por topiramato: relato de dois casos

    Directory of Open Access Journals (Sweden)

    Kathy Dadam Sgrott

    2011-06-01

    Full Text Available RESUMO A miopia aguda pode ser desencadeada pelo uso de medicações sistêmicas, dentre elas, o anticonvulsivante topiramato. Este trabalho descreve dois casos de pacientes jovens com quadro agudo bilateral de miopia induzida por terapia com topiramato para controle de síndrome depressiva, fazendo relação com casos semelhantes descritos na literatura e revisão bibliográfica pertinente.

  12. Cuatrocientos setenta y siete casos de uretritis masculina

    Directory of Open Access Journals (Sweden)

    Federico Díaz González

    1985-12-01

    Full Text Available En el año de 1985 se estudiaron, desde el punto de vista del laboratorio, 477 casos de uretritis masculina; 49 de ellos (10.3% fueron de uretritis gonocócica (UG y 428 (89.7% de uretritis no gonocócica (UNG. Estos resultados concuerdan con los obtenidos en series previas; se discute la importancia de la UNG y se plantea la posibilidad de que muchos de los casos de esta entidad sean de la modalidad postgonocócica (UPG.

  13. Quantum statistical Monte Carlo methods and applications to spin systems

    International Nuclear Information System (INIS)

    Suzuki, M.

    1986-01-01

    A short review is given concerning the quantum statistical Monte Carlo method based on the equivalence theorem that d-dimensional quantum systems are mapped onto (d+1)-dimensional classical systems. The convergence property of this approximate tansformation is discussed in detail. Some applications of this general appoach to quantum spin systems are reviewed. A new Monte Carlo method, ''thermo field Monte Carlo method,'' is presented, which is an extension of the projection Monte Carlo method at zero temperature to that at finite temperatures

  14. Oftalmoplegia extrínseca progressiva: registro de três casos

    Directory of Open Access Journals (Sweden)

    Luiz Antonio Alves Duro

    1982-12-01

    Full Text Available São relatados 3 casos de pacientes femininos com atrofia dos músculos oculares extrínsecos, sendo 2 de início provável aos 25 anos e 1 aos 56 anos. No que se referem às intercorrencias não miogênicas, no caso 1 havia otoscle-rose, comum na família e incapacidade para engravidar. A menarca ocorreu aos 19 anos e a menopausa aos 40, o que igualmente ocorreu com o caso 2, este o único a mostrar alterações eletrocardiográficas. No caso 3 havia sinal de Romberg e hiporreflexia profunda, sendo comum a incidência de catarata congênita. Com relação à patologia muscular, apesar das queixas serem praticamente restritas aos músculos extrínsecos oculares, procedemos à biópsia de outros músculos, além dos oculares, evidenciando-se em todos acometimento do tipo miogênico, o mesmo ocorrendo na EMG. Acreditamos tratar-se de processo miogênico difuso, em que pese a dominância das manifestações oculares.

  15. Modelo dinâmico de sistemas para o gerenciamento de resíduos da construção civil na cidade de Porto Alegre: estudo de caso

    Directory of Open Access Journals (Sweden)

    Luis Hernando Walteros Galarza

    2015-09-01

    Full Text Available RESUMOO presente artigo relata a elaboração de um modelo dinâmico de sistemas com o estudo de material reciclado proveniente de escombros para a fabricação de blocos de concreto do tipo não estruturais, utilizando para a modelagem das variáveis o programa computacional Stella. Essa modelagem permite que seja feita uma análise de cada variável do processo de produção, servindo como base para a definição das atividades críticas e as possibilidades de melhora e otimização do processo de produção, além de ser um critério de validação para uma adequada reutilização dos resíduos da construção, tendo em vista as legislações atuais e especificações técnicas e ambientais. Este estudo permitiu o desenvolvimento de um modelo conceitual de análise do processo de produção dos blocos através do comportamento que apresenta as variáveis que intervém no processo, demonstrando que a utilização de resíduos de construção e demolição neste estudo de caso é uma alternativa socioambiental com potencial econômico.

  16. Perfil do idoso dependente de cuidado domiciliar em comunidades de baixo nível socioeconômico de Porto Alegre, Rio Grande do Sul Profile of the elderly individual dependent on home care in low socioeconomic level communities in Porto Alegre in the state of Rio Grande do Sul

    Directory of Open Access Journals (Sweden)

    Giovâni Firpo Del Duca

    2012-05-01

    Full Text Available O estudo estimou a prevalência de cuidado domiciliar e identificou o perfil demográfico, socioeconômico, comportamental e de saúde dos idosos dependentes. O delineamento transversal e representativo das comunidades Restinga e Extremo Sul, de Porto Alegre (RS, incluiu 638 idosos. O cuidado domiciliar foi definido pela resposta positiva à questão: "O(a Sr.(a tem alguém aqui na sua casa para cuidar do(a Sr(a?". A prevalência de cuidado domiciliar encontrada foi de 25,4% (IC95%: 22,0; 28,8. Filhos(as e esposos(as foram responsáveis pela maioria do cuidado domiciliar prestado a idosos (40,7% e 37,0%, respectivamente. Homens, indivíduos sem companheiro(a, fisicamente inativos, com idade avançada, menor escolaridade e maior nível econômico, incapacidade funcional e que foram hospitalizados no último ano caracterizaram o perfil do idoso dependente. A alta prevalência de cuidado domiciliar serve de subsídio para políticas públicas destinadas a idosos. Dentre todas as características avaliadas, a incapacidade funcional, esteve mais fortemente associada ao cuidado domiciliar.The scope of this study was to estimate the prevalence of home care and to identify the demographic, socioeconomic, behavioral and health profile of dependent elderly individuals. The cross-sectional and representative delineation of the communities of Restinga and Extremo Sul in Porto Alegre in the State of Rio Grande do Sul included 638 elderly individuals. Home care was defined as a positive answer to the following question: "Do you have someone here in your home to take care of you?" The prevalence of home care was 49.5% (95% CI: 44.5; 54.5. Children and spouses were responsible for the majority of home care (40.7% and 37%, respectively. Men, unaccompanied and physically inactive individuals, of advanced age, lower educational level, higher economic level, functionally disabled and who had been hospitalized in the last year characterized the profile of the

  17. SPQR: a Monte Carlo reactor kinetics code

    International Nuclear Information System (INIS)

    Cramer, S.N.; Dodds, H.L.

    1980-02-01

    The SPQR Monte Carlo code has been developed to analyze fast reactor core accident problems where conventional methods are considered inadequate. The code is based on the adiabatic approximation of the quasi-static method. This initial version contains no automatic material motion or feedback. An existing Monte Carlo code is used to calculate the shape functions and the integral quantities needed in the kinetics module. Several sample problems have been devised and analyzed. Due to the large statistical uncertainty associated with the calculation of reactivity in accident simulations, the results, especially at later times, differ greatly from deterministic methods. It was also found that in large uncoupled systems, the Monte Carlo method has difficulty in handling asymmetric perturbations

  18. Optix: A Monte Carlo scintillation light transport code

    Energy Technology Data Exchange (ETDEWEB)

    Safari, M.J., E-mail: mjsafari@aut.ac.ir [Department of Energy Engineering and Physics, Amir Kabir University of Technology, PO Box 15875-4413, Tehran (Iran, Islamic Republic of); Afarideh, H. [Department of Energy Engineering and Physics, Amir Kabir University of Technology, PO Box 15875-4413, Tehran (Iran, Islamic Republic of); Ghal-Eh, N. [School of Physics, Damghan University, PO Box 36716-41167, Damghan (Iran, Islamic Republic of); Davani, F. Abbasi [Nuclear Engineering Department, Shahid Beheshti University, PO Box 1983963113, Tehran (Iran, Islamic Republic of)

    2014-02-11

    The paper reports on the capabilities of Monte Carlo scintillation light transport code Optix, which is an extended version of previously introduced code Optics. Optix provides the user a variety of both numerical and graphical outputs with a very simple and user-friendly input structure. A benchmarking strategy has been adopted based on the comparison with experimental results, semi-analytical solutions, and other Monte Carlo simulation codes to verify various aspects of the developed code. Besides, some extensive comparisons have been made against the tracking abilities of general-purpose MCNPX and FLUKA codes. The presented benchmark results for the Optix code exhibit promising agreements. -- Highlights: • Monte Carlo simulation of scintillation light transport in 3D geometry. • Evaluation of angular distribution of detected photons. • Benchmark studies to check the accuracy of Monte Carlo simulations.

  19. Bayesian phylogeny analysis via stochastic approximation Monte Carlo

    KAUST Repository

    Cheon, Sooyoung

    2009-11-01

    Monte Carlo methods have received much attention in the recent literature of phylogeny analysis. However, the conventional Markov chain Monte Carlo algorithms, such as the Metropolis-Hastings algorithm, tend to get trapped in a local mode in simulating from the posterior distribution of phylogenetic trees, rendering the inference ineffective. In this paper, we apply an advanced Monte Carlo algorithm, the stochastic approximation Monte Carlo algorithm, to Bayesian phylogeny analysis. Our method is compared with two popular Bayesian phylogeny software, BAMBE and MrBayes, on simulated and real datasets. The numerical results indicate that our method outperforms BAMBE and MrBayes. Among the three methods, SAMC produces the consensus trees which have the highest similarity to the true trees, and the model parameter estimates which have the smallest mean square errors, but costs the least CPU time. © 2009 Elsevier Inc. All rights reserved.

  20. Present status and future prospects of neutronics Monte Carlo

    International Nuclear Information System (INIS)

    Gelbard, E.M.

    1990-01-01

    It is fair to say that the Monte Carlo method, over the last decade, has grown steadily more important as a neutronics computational tool. Apparently this has happened for assorted reasons. Thus, for example, as the power of computers has increased, the cost of the method has dropped, steadily becoming less and less of an obstacle to its use. In addition, more and more sophisticated input processors have now made it feasible to model extremely complicated systems routinely with really remarkable fidelity. Finally, as we demand greater and greater precision in reactor calculations, Monte Carlo is often found to be the only method accurate enough for use in benchmarking. Cross section uncertainties are now almost the only inherent limitations in our Monte Carlo capabilities. For this reason Monte Carlo has come to occupy a special position, interposed between experiment and other computational techniques. More and more often deterministic methods are tested by comparison with Monte Carlo, and cross sections are tested by comparing Monte Carlo with experiment. In this way one can distinguish very clearly between errors due to flaws in our numerical methods, and those due to deficiencies in cross section files. The special role of Monte Carlo as a benchmarking tool, often the only available benchmarking tool, makes it crucially important that this method should be polished to perfection. Problems relating to Eigenvalue calculations, variance reduction and the use of advanced computers are reviewed in this paper. (author)

  1. Diffusion Monte Carlo approach versus adiabatic computation for local Hamiltonians

    Science.gov (United States)

    Bringewatt, Jacob; Dorland, William; Jordan, Stephen P.; Mink, Alan

    2018-02-01

    Most research regarding quantum adiabatic optimization has focused on stoquastic Hamiltonians, whose ground states can be expressed with only real non-negative amplitudes and thus for whom destructive interference is not manifest. This raises the question of whether classical Monte Carlo algorithms can efficiently simulate quantum adiabatic optimization with stoquastic Hamiltonians. Recent results have given counterexamples in which path-integral and diffusion Monte Carlo fail to do so. However, most adiabatic optimization algorithms, such as for solving MAX-k -SAT problems, use k -local Hamiltonians, whereas our previous counterexample for diffusion Monte Carlo involved n -body interactions. Here we present a 6-local counterexample which demonstrates that even for these local Hamiltonians there are cases where diffusion Monte Carlo cannot efficiently simulate quantum adiabatic optimization. Furthermore, we perform empirical testing of diffusion Monte Carlo on a standard well-studied class of permutation-symmetric tunneling problems and similarly find large advantages for quantum optimization over diffusion Monte Carlo.

  2. Toracoplastia traumática: relato de caso

    OpenAIRE

    Addor,Gabriela; Monteiro,Andreia Salarini; Nigri,David Henrique; Judice,Luiz Felippe; Haddad,Rui; Franco,Carlos Alberto de Barros

    2007-01-01

    O trauma é uma doença que afeta predominantemente os jovens, sendo a principal causa de morte nas primeiras três décadas de vida. O tórax instável é observado em aproximadamente 10% dos casos de trauma de tórax, com mortalidade de 10-15%. O caso clínico apresentado refere-se a uma paciente, vítima de acidente automobilístico, com trauma de tórax, ocasionando hemopneumotórax e fratura de múltiplos arcos costais, dor de difícil controle e deformidade torácica. São discutidas as opções terapêuti...

  3. Frequency domain Monte Carlo simulation method for cross power spectral density driven by periodically pulsed spallation neutron source using complex-valued weight Monte Carlo

    International Nuclear Information System (INIS)

    Yamamoto, Toshihiro

    2014-01-01

    Highlights: • The cross power spectral density in ADS has correlated and uncorrelated components. • A frequency domain Monte Carlo method to calculate the uncorrelated one is developed. • The method solves the Fourier transformed transport equation. • The method uses complex-valued weights to solve the equation. • The new method reproduces well the CPSDs calculated with time domain MC method. - Abstract: In an accelerator driven system (ADS), pulsed spallation neutrons are injected at a constant frequency. The cross power spectral density (CPSD), which can be used for monitoring the subcriticality of the ADS, is composed of the correlated and uncorrelated components. The uncorrelated component is described by a series of the Dirac delta functions that occur at the integer multiples of the pulse repetition frequency. In the present paper, a Monte Carlo method to solve the Fourier transformed neutron transport equation with a periodically pulsed neutron source term has been developed to obtain the CPSD in ADSs. Since the Fourier transformed flux is a complex-valued quantity, the Monte Carlo method introduces complex-valued weights to solve the Fourier transformed equation. The Monte Carlo algorithm used in this paper is similar to the one that was developed by the author of this paper to calculate the neutron noise caused by cross section perturbations. The newly-developed Monte Carlo algorithm is benchmarked to the conventional time domain Monte Carlo simulation technique. The CPSDs are obtained both with the newly-developed frequency domain Monte Carlo method and the conventional time domain Monte Carlo method for a one-dimensional infinite slab. The CPSDs obtained with the frequency domain Monte Carlo method agree well with those with the time domain method. The higher order mode effects on the CPSD in an ADS with a periodically pulsed neutron source are discussed

  4. Diseño de un plan lector dirigido a niños de 4 a 5 años del proyecto Cuéntamelo Todo – Fe y Alegría.

    OpenAIRE

    Rueda Ramírez, Lisbeth Carolina

    2014-01-01

    This learning product is based on the design of a reading plan aimed at children from 4 to 5 years old, from the project “Cuéntamelo Todo-Fe y Alegría” from Quito. This was created because of the need to teach kids how to read at a young age, through playful, fun and creative activities which make kids enjoy written texts. The idea is born of a previous experience which took place at a university level in the previously mentioned project; this tool is designed so project collab...

  5. Neutron point-flux calculation by Monte Carlo

    International Nuclear Information System (INIS)

    Eichhorn, M.

    1986-04-01

    A survey of the usual methods for estimating flux at a point is given. The associated variance-reducing techniques in direct Monte Carlo games are explained. The multigroup Monte Carlo codes MC for critical systems and PUNKT for point source-point detector-systems are represented, and problems in applying the codes to practical tasks are discussed. (author)

  6. O CASO MOREL: UM CASO DE INVESTIGAÇÃO LITERÁRIA MOREL CASE: A CASE OF LITERARY RESEARCH

    Directory of Open Access Journals (Sweden)

    JOANA DARC RIBEIRO

    2000-01-01

    Full Text Available Este estudo tem por objetivo a leitura do romance O Caso Morel, de RubemFonseca, cujo enfoque recai sobre o problema do personagem-escritor e o dacriação ficcional tematizados no espaço romanesco. Ao lado de uma“investigação policial” o leitor depara nesse primeiro romance do autor comuma “investigação literária” problematizada em vários níveis.The aim of this paper is the reading of O Caso Morel, by Rubem Fonseca,focusing on the character-writter and fictional creation. Besides a detectiveinvestigation we can find in the author’s first novel a problematic literacyinvestigation in several levels.

  7. La protección del patrimonio arqueológico y el turismo, el caso de México

    Directory of Open Access Journals (Sweden)

    Ernesto González Licón

    2006-11-01

    Full Text Available En este artículo se discute en general el impacto que tiene el turismo masivo en las zonas arqueológicas de México y las estrategias por seguir para que no sea visto como una amenaza, sino como un factor que apoye la investigación científica y la conservación integral de las zonas arqueológicas con la participación de las actuales comunidades vecinas. Se analiza el caso particular de la zona arqueológica de Monte Albán y el Centro Histórico de Oaxaca (México, declarados conjuntamente como patrimonio cultural de la humanidad por la unesco, y donde el crecimiento acelerado de la ciudad de Oaxaca pone en peligro parte de la zona arqueológica. Como parte de la solución, se propone un enfoque integral, donde se invita a participar a todas las partes involucradas como son autoridades de los tres niveles de gobierno, organizaciones civiles y las comunidades vecinas.

  8. Research on perturbation based Monte Carlo reactor criticality search

    International Nuclear Information System (INIS)

    Li Zeguang; Wang Kan; Li Yangliu; Deng Jingkang

    2013-01-01

    Criticality search is a very important aspect in reactor physics analysis. Due to the advantages of Monte Carlo method and the development of computer technologies, Monte Carlo criticality search is becoming more and more necessary and feasible. Traditional Monte Carlo criticality search method is suffered from large amount of individual criticality runs and uncertainty and fluctuation of Monte Carlo results. A new Monte Carlo criticality search method based on perturbation calculation is put forward in this paper to overcome the disadvantages of traditional method. By using only one criticality run to get initial k_e_f_f and differential coefficients of concerned parameter, the polynomial estimator of k_e_f_f changing function is solved to get the critical value of concerned parameter. The feasibility of this method was tested. The results show that the accuracy and efficiency of perturbation based criticality search method are quite inspiring and the method overcomes the disadvantages of traditional one. (authors)

  9. Shell model the Monte Carlo way

    International Nuclear Information System (INIS)

    Ormand, W.E.

    1995-01-01

    The formalism for the auxiliary-field Monte Carlo approach to the nuclear shell model is presented. The method is based on a linearization of the two-body part of the Hamiltonian in an imaginary-time propagator using the Hubbard-Stratonovich transformation. The foundation of the method, as applied to the nuclear many-body problem, is discussed. Topics presented in detail include: (1) the density-density formulation of the method, (2) computation of the overlaps, (3) the sign of the Monte Carlo weight function, (4) techniques for performing Monte Carlo sampling, and (5) the reconstruction of response functions from an imaginary-time auto-correlation function using MaxEnt techniques. Results obtained using schematic interactions, which have no sign problem, are presented to demonstrate the feasibility of the method, while an extrapolation method for realistic Hamiltonians is presented. In addition, applications at finite temperature are outlined

  10. Shell model the Monte Carlo way

    Energy Technology Data Exchange (ETDEWEB)

    Ormand, W.E.

    1995-03-01

    The formalism for the auxiliary-field Monte Carlo approach to the nuclear shell model is presented. The method is based on a linearization of the two-body part of the Hamiltonian in an imaginary-time propagator using the Hubbard-Stratonovich transformation. The foundation of the method, as applied to the nuclear many-body problem, is discussed. Topics presented in detail include: (1) the density-density formulation of the method, (2) computation of the overlaps, (3) the sign of the Monte Carlo weight function, (4) techniques for performing Monte Carlo sampling, and (5) the reconstruction of response functions from an imaginary-time auto-correlation function using MaxEnt techniques. Results obtained using schematic interactions, which have no sign problem, are presented to demonstrate the feasibility of the method, while an extrapolation method for realistic Hamiltonians is presented. In addition, applications at finite temperature are outlined.

  11. Monte Carlo learning/biasing experiment with intelligent random numbers

    International Nuclear Information System (INIS)

    Booth, T.E.

    1985-01-01

    A Monte Carlo learning and biasing technique is described that does its learning and biasing in the random number space rather than the physical phase-space. The technique is probably applicable to all linear Monte Carlo problems, but no proof is provided here. Instead, the technique is illustrated with a simple Monte Carlo transport problem. Problems encountered, problems solved, and speculations about future progress are discussed. 12 refs

  12. Temperature variance study in Monte-Carlo photon transport theory

    International Nuclear Information System (INIS)

    Giorla, J.

    1985-10-01

    We study different Monte-Carlo methods for solving radiative transfer problems, and particularly Fleck's Monte-Carlo method. We first give the different time-discretization schemes and the corresponding stability criteria. Then we write the temperature variance as a function of the variances of temperature and absorbed energy at the previous time step. Finally we obtain some stability criteria for the Monte-Carlo method in the stationary case [fr

  13. Monte Carlo applications to radiation shielding problems

    International Nuclear Information System (INIS)

    Subbaiah, K.V.

    2009-01-01

    Monte Carlo methods are a class of computational algorithms that rely on repeated random sampling of physical and mathematical systems to compute their results. However, basic concepts of MC are both simple and straightforward and can be learned by using a personal computer. Uses of Monte Carlo methods require large amounts of random numbers, and it was their use that spurred the development of pseudorandom number generators, which were far quicker to use than the tables of random numbers which had been previously used for statistical sampling. In Monte Carlo simulation of radiation transport, the history (track) of a particle is viewed as a random sequence of free flights that end with an interaction event where the particle changes its direction of movement, loses energy and, occasionally, produces secondary particles. The Monte Carlo simulation of a given experimental arrangement (e.g., an electron beam, coming from an accelerator and impinging on a water phantom) consists of the numerical generation of random histories. To simulate these histories we need an interaction model, i.e., a set of differential cross sections (DCS) for the relevant interaction mechanisms. The DCSs determine the probability distribution functions (pdf) of the random variables that characterize a track; 1) free path between successive interaction events, 2) type of interaction taking place and 3) energy loss and angular deflection in a particular event (and initial state of emitted secondary particles, if any). Once these pdfs are known, random histories can be generated by using appropriate sampling methods. If the number of generated histories is large enough, quantitative information on the transport process may be obtained by simply averaging over the simulated histories. The Monte Carlo method yields the same information as the solution of the Boltzmann transport equation, with the same interaction model, but is easier to implement. In particular, the simulation of radiation

  14. Randomized quasi-Monte Carlo simulation of fast-ion thermalization

    Science.gov (United States)

    Höök, L. J.; Johnson, T.; Hellsten, T.

    2012-01-01

    This work investigates the applicability of the randomized quasi-Monte Carlo method for simulation of fast-ion thermalization processes in fusion plasmas, e.g. for simulation of neutral beam injection and radio frequency heating. In contrast to the standard Monte Carlo method, the quasi-Monte Carlo method uses deterministic numbers instead of pseudo-random numbers and has a statistical weak convergence close to {O}(N^{-1}) , where N is the number of markers. We have compared different quasi-Monte Carlo methods for a neutral beam injection scenario, which is solved by many realizations of the associated stochastic differential equation, discretized with the Euler-Maruyama scheme. The statistical convergence of the methods is measured for time steps up to 214.

  15. Violência sexual e sua prevalência em adolescentes de Porto Alegre, Brasil

    Directory of Open Access Journals (Sweden)

    Polanczyk Guilherme Vanoni

    2003-01-01

    Full Text Available OBJETIVO: Verificar a prevalência da exposição à violência sexual entre adolescentes estudantes de escolas estaduais. MÉTODOS: Foram selecionadas 52 escolas estaduais de Porto Alegre, RS, Brasil, com ensino fundamental completo, por meio de um processo de amostragem aleatória, estratificada de acordo com o tamanho das escolas. Foi selecionada, em cada escola, uma turma de oitava série por sorteio aleatório e foram incluídos todos os adolescentes presentes nas salas de aula que consentiram em participar do estudo. Foi utilizado o instrumento Triagem da Exposição de Crianças à Violência na Comunidade para identificar jovens que foram vítimas, testemunhas ou que conheciam vítimas de atos de violência sexual. RESULTADOS: Foram incluídos 1.193 adolescentes, representando 10,3% dos alunos matriculados na oitava série da rede estadual da cidade. Vinte e sete (2,3% adolescentes relataram ter sido vítimas de violência sexual, 54 (4,5% ter sido testemunhas de algum tipo de violência sexual e 332 (27,9% relataram conhecer alguém que tenha sido vítima de violência sexual. CONCLUSÕES: A exposição à violência sexual pelas três formas de contato relatadas mostrou-se freqüente entre os adolescentes estudados. São necessários estudos que abordem a violência sexual como um fenômeno social amplo, com múltiplos fatores associados, amparando estratégias comunitárias de prevenção e de tratamento.

  16. A Monte Carlo algorithm for the Vavilov distribution

    International Nuclear Information System (INIS)

    Yi, Chul-Young; Han, Hyon-Soo

    1999-01-01

    Using the convolution property of the inverse Laplace transform, an improved Monte Carlo algorithm for the Vavilov energy-loss straggling distribution of the charged particle is developed, which is relatively simple and gives enough accuracy to be used for most Monte Carlo applications

  17. Comparison of the TL intensity of the sintered composites of CaSO4+Tm

    International Nuclear Information System (INIS)

    Junot, O.D.; Sousa, F.L. de; Chagas, M.A.P.; Souza, D.N.

    2009-01-01

    The objective of this work is to compare the thermoluminescent intensity (TL) of CaSO 4 +Tm, CaSO 4 +Tm+glass and glass+Tm composites for use as thermoluminescent dosimeter (TLD). The route used to prepare the CaSO 4 +Tm and the CaSO 4 +Tm+glass was by mixing 1 g of CaSO 4 with 0.02 g of thulium oxide (99,9% purity) and 0.3 g of commercial and colorless glass. To mixing the composites were taken to a magnetic stirrer for 30 min with 10 mL of distilled water for better homogenization. The powder mixtures were dried in a stove at 100 deg C for 24 h. After drying, it was added polyvinyl alcohol (PVA) to improve the binding material. The pellets were compacted by application of an uniaxial pressing and sintered at 700 deg C/ 6 h. The route used in the preparation of glass+Tm pellets was similar to one previously mentioned, except by the use of 1 g of glass and 0.02 of Tm. After the sintering, the pellets dimensions were 1 mm thick and 6 mm in diameter. All samples were irradiated by a beta source ( 90 Sr + 90 Y) and received doses from 1.00 Gy to 20 Gy. Each composite presented a characteristic emission curve. The dosimeter of CaSO 4 +Tm+glass presented two peaks, the first at 115 deg C, and the second, very intense, ate 150 deg C. The CaSO 4 +Tm dosimeter showed a less intense peak at 140 deg C and another, more intense, at 235 deg C. In the composites of glass+Tm, the most intense peak has a thermoluminescent signal 94,04% lower than the most intense peak of CaSO 4 +Tm+glass and 81.57% lower than the most intense peak of CaSO 4 +Tm. After the analysis of TL emission curves, we observed that the CaSO 4 +Tm+glass have the highest TL intensity and a TL response proportional to the dose absorbed. (author)

  18. Adaptive Multilevel Monte Carlo Simulation

    KAUST Repository

    Hoel, H

    2011-08-23

    This work generalizes a multilevel forward Euler Monte Carlo method introduced in Michael B. Giles. (Michael Giles. Oper. Res. 56(3):607–617, 2008.) for the approximation of expected values depending on the solution to an Itô stochastic differential equation. The work (Michael Giles. Oper. Res. 56(3):607– 617, 2008.) proposed and analyzed a forward Euler multilevelMonte Carlo method based on a hierarchy of uniform time discretizations and control variates to reduce the computational effort required by a standard, single level, Forward Euler Monte Carlo method. This work introduces an adaptive hierarchy of non uniform time discretizations, generated by an adaptive algorithmintroduced in (AnnaDzougoutov et al. Raùl Tempone. Adaptive Monte Carlo algorithms for stopped diffusion. In Multiscale methods in science and engineering, volume 44 of Lect. Notes Comput. Sci. Eng., pages 59–88. Springer, Berlin, 2005; Kyoung-Sook Moon et al. Stoch. Anal. Appl. 23(3):511–558, 2005; Kyoung-Sook Moon et al. An adaptive algorithm for ordinary, stochastic and partial differential equations. In Recent advances in adaptive computation, volume 383 of Contemp. Math., pages 325–343. Amer. Math. Soc., Providence, RI, 2005.). This form of the adaptive algorithm generates stochastic, path dependent, time steps and is based on a posteriori error expansions first developed in (Anders Szepessy et al. Comm. Pure Appl. Math. 54(10):1169– 1214, 2001). Our numerical results for a stopped diffusion problem, exhibit savings in the computational cost to achieve an accuracy of ϑ(TOL),from(TOL−3), from using a single level version of the adaptive algorithm to ϑ(((TOL−1)log(TOL))2).

  19. Monte Carlo computation in the applied research of nuclear technology

    International Nuclear Information System (INIS)

    Xu Shuyan; Liu Baojie; Li Qin

    2007-01-01

    This article briefly introduces Monte Carlo Methods and their properties. It narrates the Monte Carlo methods with emphasis in their applications to several domains of nuclear technology. Monte Carlo simulation methods and several commonly used computer software to implement them are also introduced. The proposed methods are demonstrated by a real example. (authors)

  20. Nested Sampling with Constrained Hamiltonian Monte Carlo

    OpenAIRE

    Betancourt, M. J.

    2010-01-01

    Nested sampling is a powerful approach to Bayesian inference ultimately limited by the computationally demanding task of sampling from a heavily constrained probability distribution. An effective algorithm in its own right, Hamiltonian Monte Carlo is readily adapted to efficiently sample from any smooth, constrained distribution. Utilizing this constrained Hamiltonian Monte Carlo, I introduce a general implementation of the nested sampling algorithm.

  1. Meio Ambiente e Desenvolvimento na Região Metropolitana de Porto Alegre: uma abordagem a partir do espaço rural

    Directory of Open Access Journals (Sweden)

    Osmar Tomaz de Souza

    2013-06-01

    A gestão do meio ambiente em regiões metropolitanas representa um grande desafio à política ambiental, pois a elevada aglomeração de pessoas e atividades nas metrópoles cria um cenário propício ao aprofundamento dos problemas ambientais. Em especial, as áreas rurais das áreas metropolitanas que tem sido relegado ao plano secundário, embora representem a maior parte da área física dessas regiões e possuam grande diversidade de funções. O objetivo neste trabalho é refletir sobre estes temas com base na Região Metropolitana de Porto Alegre, RS. Para tanto, são analisados: (a a dinâmica e as funções do seu rural; (b as principais políticas de desenvolvimento e ambientais que nele incidem; c os embates sobre as políticas de desenvolvimento regional neste contexto.

  2. Leptospirosis: serie de casos en un centro penitenciario de la costa de Ecuador

    Directory of Open Access Journals (Sweden)

    D. Valarezo-Sevilla

    2014-06-01

    Full Text Available Se describe los casos de dos pacientes inicialmente diagnosticados como dengue e infección urinaria. Los pacientes eran personas privadas de la libertad en la misma prisión y estuvieron en contacto con agua dulce estancada aproximadamente dos semanas antes del inicio de los síntomas durante las fiestas del carnaval, siendo el sitio probable de la contaminación. El tiempo transcurrido entre el ingreso al hospital y la sospecha de leptospirosis (y el inicio del tratamiento fue de cuatro días para el paciente del caso 1 y dos días para el caso 2; entre el ingreso y la confirmación diagnóstica por laboratorio fue de diez días para el caso 1 y cuatro días para el caso 2. Se concluye que la leptospirosis no se considera como una opción dentro del diagnóstico diferencial inicial sino luego de descartar otras patologías.

  3. Analysis of the work of air traffic controllers of the approach control area (APP) of Porto Alegre, Brazil.

    Science.gov (United States)

    Vargas, C V; Guimarães, L B de M; Sant'Anna, A M O

    2012-01-01

    This article presents a study on the activities of the air traffic controllers of the Approach Control Area (APP) of Porto Alegre, Brazil, in different real scenarios. Based on interviews, questionnaires and the analysis of film of real scenes, the following were identified and analyzed: i) the perceptions of risk and complexity of the different air traffic scenes observed; ii) the cognitive factors (knowledge, strategy and attention dynamics) involved in the task and iii) the perception of the controller's workload. The results showed that the task complexity depends on the weather conditions, the number and type of aircraft in observation and that the controllers perceive the scenes in a similar way irrespective of their time in the profession and the type of control (radar or coordination). Attention is the cognitive factor with the greatest impact on the work and mental demand has the greatest impact on workload followed by time demand. The literature on the controllers work in Brazil is scarce and, therefore, this study aimed to contribute to the understanding of the work in one APP in order to promote future changes in the very problematic Brazilian air traffic system.

  4. Statistics of Monte Carlo methods used in radiation transport calculation

    International Nuclear Information System (INIS)

    Datta, D.

    2009-01-01

    Radiation transport calculation can be carried out by using either deterministic or statistical methods. Radiation transport calculation based on statistical methods is basic theme of the Monte Carlo methods. The aim of this lecture is to describe the fundamental statistics required to build the foundations of Monte Carlo technique for radiation transport calculation. Lecture note is organized in the following way. Section (1) will describe the introduction of Basic Monte Carlo and its classification towards the respective field. Section (2) will describe the random sampling methods, a key component of Monte Carlo radiation transport calculation, Section (3) will provide the statistical uncertainty of Monte Carlo estimates, Section (4) will describe in brief the importance of variance reduction techniques while sampling particles such as photon, or neutron in the process of radiation transport

  5. Multiple histogram method and static Monte Carlo sampling

    NARCIS (Netherlands)

    Inda, M.A.; Frenkel, D.

    2004-01-01

    We describe an approach to use multiple-histogram methods in combination with static, biased Monte Carlo simulations. To illustrate this, we computed the force-extension curve of an athermal polymer from multiple histograms constructed in a series of static Rosenbluth Monte Carlo simulations. From

  6. Forest canopy BRDF simulation using Monte Carlo method

    NARCIS (Netherlands)

    Huang, J.; Wu, B.; Zeng, Y.; Tian, Y.

    2006-01-01

    Monte Carlo method is a random statistic method, which has been widely used to simulate the Bidirectional Reflectance Distribution Function (BRDF) of vegetation canopy in the field of visible remote sensing. The random process between photons and forest canopy was designed using Monte Carlo method.

  7. Shell model Monte Carlo methods

    International Nuclear Information System (INIS)

    Koonin, S.E.

    1996-01-01

    We review quantum Monte Carlo methods for dealing with large shell model problems. These methods reduce the imaginary-time many-body evolution operator to a coherent superposition of one-body evolutions in fluctuating one-body fields; resultant path integral is evaluated stochastically. We first discuss the motivation, formalism, and implementation of such Shell Model Monte Carlo methods. There then follows a sampler of results and insights obtained from a number of applications. These include the ground state and thermal properties of pf-shell nuclei, thermal behavior of γ-soft nuclei, and calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are discussed. 87 refs

  8. Discrete Diffusion Monte Carlo for Electron Thermal Transport

    Science.gov (United States)

    Chenhall, Jeffrey; Cao, Duc; Wollaeger, Ryan; Moses, Gregory

    2014-10-01

    The iSNB (implicit Schurtz Nicolai Busquet electron thermal transport method of Cao et al. is adapted to a Discrete Diffusion Monte Carlo (DDMC) solution method for eventual inclusion in a hybrid IMC-DDMC (Implicit Monte Carlo) method. The hybrid method will combine the efficiency of a diffusion method in short mean free path regions with the accuracy of a transport method in long mean free path regions. The Monte Carlo nature of the approach allows the algorithm to be massively parallelized. Work to date on the iSNB-DDMC method will be presented. This work was supported by Sandia National Laboratory - Albuquerque.

  9. Monte Carlo techniques in diagnostic and therapeutic nuclear medicine

    International Nuclear Information System (INIS)

    Zaidi, H.

    2002-01-01

    Monte Carlo techniques have become one of the most popular tools in different areas of medical radiation physics following the development and subsequent implementation of powerful computing systems for clinical use. In particular, they have been extensively applied to simulate processes involving random behaviour and to quantify physical parameters that are difficult or even impossible to calculate analytically or to determine by experimental measurements. The use of the Monte Carlo method to simulate radiation transport turned out to be the most accurate means of predicting absorbed dose distributions and other quantities of interest in the radiation treatment of cancer patients using either external or radionuclide radiotherapy. The same trend has occurred for the estimation of the absorbed dose in diagnostic procedures using radionuclides. There is broad consensus in accepting that the earliest Monte Carlo calculations in medical radiation physics were made in the area of nuclear medicine, where the technique was used for dosimetry modelling and computations. Formalism and data based on Monte Carlo calculations, developed by the Medical Internal Radiation Dose (MIRD) committee of the Society of Nuclear Medicine, were published in a series of supplements to the Journal of Nuclear Medicine, the first one being released in 1968. Some of these pamphlets made extensive use of Monte Carlo calculations to derive specific absorbed fractions for electron and photon sources uniformly distributed in organs of mathematical phantoms. Interest in Monte Carlo-based dose calculations with β-emitters has been revived with the application of radiolabelled monoclonal antibodies to radioimmunotherapy. As a consequence of this generalized use, many questions are being raised primarily about the need and potential of Monte Carlo techniques, but also about how accurate it really is, what would it take to apply it clinically and make it available widely to the medical physics

  10. Monte Carlo strategies in scientific computing

    CERN Document Server

    Liu, Jun S

    2008-01-01

    This paperback edition is a reprint of the 2001 Springer edition This book provides a self-contained and up-to-date treatment of the Monte Carlo method and develops a common framework under which various Monte Carlo techniques can be "standardized" and compared Given the interdisciplinary nature of the topics and a moderate prerequisite for the reader, this book should be of interest to a broad audience of quantitative researchers such as computational biologists, computer scientists, econometricians, engineers, probabilists, and statisticians It can also be used as the textbook for a graduate-level course on Monte Carlo methods Many problems discussed in the alter chapters can be potential thesis topics for masters’ or PhD students in statistics or computer science departments Jun Liu is Professor of Statistics at Harvard University, with a courtesy Professor appointment at Harvard Biostatistics Department Professor Liu was the recipient of the 2002 COPSS Presidents' Award, the most prestigious one for sta...

  11. Off-diagonal expansion quantum Monte Carlo.

    Science.gov (United States)

    Albash, Tameem; Wagenbreth, Gene; Hen, Itay

    2017-12-01

    We propose a Monte Carlo algorithm designed to simulate quantum as well as classical systems at equilibrium, bridging the algorithmic gap between quantum and classical thermal simulation algorithms. The method is based on a decomposition of the quantum partition function that can be viewed as a series expansion about its classical part. We argue that the algorithm not only provides a theoretical advancement in the field of quantum Monte Carlo simulations, but is optimally suited to tackle quantum many-body systems that exhibit a range of behaviors from "fully quantum" to "fully classical," in contrast to many existing methods. We demonstrate the advantages, sometimes by orders of magnitude, of the technique by comparing it against existing state-of-the-art schemes such as path integral quantum Monte Carlo and stochastic series expansion. We also illustrate how our method allows for the unification of quantum and classical thermal parallel tempering techniques into a single algorithm and discuss its practical significance.

  12. CRIPTOCOCOSE: RELATO DE CASO

    Directory of Open Access Journals (Sweden)

    Fernanda Alvarez GENTIL

    2016-12-01

    Full Text Available Criptococose, doença infecciosa fúngica, oportunista, potencialmente fatal, que acomete animais silvestres e domésticos, principalmente cachorro e gato e o homem. Causada pela levedura, Cryptococcus neoformans. Mais frequente em adultos, comumente diagnosticada em pacientes imunodeprimidos, como os soropositivos, fator predisponente mais frequente. Outros fatores são: uso prolongado de medicações imunossupressoras, doenças como diabetes, sarcoidose, doença de Hodgkin e outras neoplasias hematológicas, lúpus eritematoso, artrite reumatoide, doença de Behçet, e transplante de vísceras sólidas. Geralmente adquirida pela inalação do agente etiológico. Objetivo: este estudo objetiva relatar o caso de um paciente portador de criptococose, que esteve invernado no Hospital São José do Avaí (HSJA de Itaperuna, no mês de setembro de 2016, corroborando na literatura descrita sobre o tema, justifica-se o tema pela raridade do caso. Metodologia: inicialmente realizou-se pesquisa bibliográfica através da seleção de autores que asseguraram uma fundamentação teórico-metodológica que serviu de arcabouço para o desenvolvimento do estudo. A metodologia apresentada refere-se a um relato de caso, realizado a partir do prontuário do paciente e dos exames disponíveis. Resultados: a Radiografia de tórax evidenciou massa pulmonar em lobo inferior direito e a Tomografia de tórax também demonstrou esse acometimento; sendo realizada biópsia desse fragmento, que consolidou o diagnóstico de criptococose. A lâmina do paciente, corada com hematoxilina-eosina demonstrou aspectos característicos do acometimento por esse fungo. Conclusão: para o tratamento, pode-se utilizar antifúngicos como a anfotericina B associado com 5-flucitosina, em infecções disseminadas; ou fluconazol e itraconazol, para infecções cutâneas. 

  13. Dynamic bounds coupled with Monte Carlo simulations

    Energy Technology Data Exchange (ETDEWEB)

    Rajabalinejad, M., E-mail: M.Rajabalinejad@tudelft.n [Faculty of Civil Engineering, Delft University of Technology, Delft (Netherlands); Meester, L.E. [Delft Institute of Applied Mathematics, Delft University of Technology, Delft (Netherlands); Gelder, P.H.A.J.M. van; Vrijling, J.K. [Faculty of Civil Engineering, Delft University of Technology, Delft (Netherlands)

    2011-02-15

    For the reliability analysis of engineering structures a variety of methods is known, of which Monte Carlo (MC) simulation is widely considered to be among the most robust and most generally applicable. To reduce simulation cost of the MC method, variance reduction methods are applied. This paper describes a method to reduce the simulation cost even further, while retaining the accuracy of Monte Carlo, by taking into account widely present monotonicity. For models exhibiting monotonic (decreasing or increasing) behavior, dynamic bounds (DB) are defined, which in a coupled Monte Carlo simulation are updated dynamically, resulting in a failure probability estimate, as well as a strict (non-probabilistic) upper and lower bounds. Accurate results are obtained at a much lower cost than an equivalent ordinary Monte Carlo simulation. In a two-dimensional and a four-dimensional numerical example, the cost reduction factors are 130 and 9, respectively, where the relative error is smaller than 5%. At higher accuracy levels, this factor increases, though this effect is expected to be smaller with increasing dimension. To show the application of DB method to real world problems, it is applied to a complex finite element model of a flood wall in New Orleans.

  14. Coded aperture optimization using Monte Carlo simulations

    International Nuclear Information System (INIS)

    Martineau, A.; Rocchisani, J.M.; Moretti, J.L.

    2010-01-01

    Coded apertures using Uniformly Redundant Arrays (URA) have been unsuccessfully evaluated for two-dimensional and three-dimensional imaging in Nuclear Medicine. The images reconstructed from coded projections contain artifacts and suffer from poor spatial resolution in the longitudinal direction. We introduce a Maximum-Likelihood Expectation-Maximization (MLEM) algorithm for three-dimensional coded aperture imaging which uses a projection matrix calculated by Monte Carlo simulations. The aim of the algorithm is to reduce artifacts and improve the three-dimensional spatial resolution in the reconstructed images. Firstly, we present the validation of GATE (Geant4 Application for Emission Tomography) for Monte Carlo simulations of a coded mask installed on a clinical gamma camera. The coded mask modelling was validated by comparison between experimental and simulated data in terms of energy spectra, sensitivity and spatial resolution. In the second part of the study, we use the validated model to calculate the projection matrix with Monte Carlo simulations. A three-dimensional thyroid phantom study was performed to compare the performance of the three-dimensional MLEM reconstruction with conventional correlation method. The results indicate that the artifacts are reduced and three-dimensional spatial resolution is improved with the Monte Carlo-based MLEM reconstruction.

  15. GESTÃO DE RESÍDUOS SÓLIDOS NA CONSTRUTORA MELNICK – PORTO ALEGRE - RS

    Directory of Open Access Journals (Sweden)

    Roberto Naime

    2007-08-01

    Full Text Available O setor da construção civil, envolvendo a construção de obras, representa a atividade com maiores impactos quantitativos e qualitativos sobre o meio ambiente. A partir de observações e estudos efetuados em canteiros de obras e no restante da cadeia da construção civil, foi proposto e implantado um plano para a Construtora Melnick de Porto Alegre, com uma abordagem integrada, aplicando o gerenciamento ambiental integrado (GAI. Este método engloba três atributos genéricos fundamentados em 3 grupos: No primeiro grupo, denominado Categoria de Iniciação e Análise, são identificados os aspectos legais e os recursos necessários, sendo definido o plano de ação e as campanhas de conscientização. No segundo grupo, chamado categoria de operação, são reunidos os recursos financeiros, técnicos e humanos para que o plano de ação proposto seja eficiente e operacional. No terceiro grupo, denominado de categoria de resultantes, são referidas aplicações de processos durante toda a operação, sendo definidos indicadores e Procedimentos Operacionais Padrão (POPs. Os resultados esperados são a elaboração de processos uniformes, treinamento de pessoal e relatórios finais padronizados das operações. PALAVRAS-CHAVE: Construção civil. Gestão. Resíduos sólidos.

  16. Randomized quasi-Monte Carlo simulation of fast-ion thermalization

    International Nuclear Information System (INIS)

    Höök, L J; Johnson, T; Hellsten, T

    2012-01-01

    This work investigates the applicability of the randomized quasi-Monte Carlo method for simulation of fast-ion thermalization processes in fusion plasmas, e.g. for simulation of neutral beam injection and radio frequency heating. In contrast to the standard Monte Carlo method, the quasi-Monte Carlo method uses deterministic numbers instead of pseudo-random numbers and has a statistical weak convergence close to O(N -1 ), where N is the number of markers. We have compared different quasi-Monte Carlo methods for a neutral beam injection scenario, which is solved by many realizations of the associated stochastic differential equation, discretized with the Euler-Maruyama scheme. The statistical convergence of the methods is measured for time steps up to 2 14 . (paper)

  17. Usefulness of the Monte Carlo method in reliability calculations

    International Nuclear Information System (INIS)

    Lanore, J.M.; Kalli, H.

    1977-01-01

    Three examples of reliability Monte Carlo programs developed in the LEP (Laboratory for Radiation Shielding Studies in the Nuclear Research Center at Saclay) are presented. First, an uncertainty analysis is given for a simplified spray system; a Monte Carlo program PATREC-MC has been written to solve the problem with the system components given in the fault tree representation. The second program MONARC 2 has been written to solve the problem of complex systems reliability by the Monte Carlo simulation, here again the system (a residual heat removal system) is in the fault tree representation. Third, the Monte Carlo program MONARC was used instead of the Markov diagram to solve the simulation problem of an electric power supply including two nets and two stand-by diesels

  18. Combinatorial nuclear level density by a Monte Carlo method

    International Nuclear Information System (INIS)

    Cerf, N.

    1994-01-01

    We present a new combinatorial method for the calculation of the nuclear level density. It is based on a Monte Carlo technique, in order to avoid a direct counting procedure which is generally impracticable for high-A nuclei. The Monte Carlo simulation, making use of the Metropolis sampling scheme, allows a computationally fast estimate of the level density for many fermion systems in large shell model spaces. We emphasize the advantages of this Monte Carlo approach, particularly concerning the prediction of the spin and parity distributions of the excited states,and compare our results with those derived from a traditional combinatorial or a statistical method. Such a Monte Carlo technique seems very promising to determine accurate level densities in a large energy range for nuclear reaction calculations

  19. Monte Carlo variance reduction approaches for non-Boltzmann tallies

    International Nuclear Information System (INIS)

    Booth, T.E.

    1992-12-01

    Quantities that depend on the collective effects of groups of particles cannot be obtained from the standard Boltzmann transport equation. Monte Carlo estimates of these quantities are called non-Boltzmann tallies and have become increasingly important recently. Standard Monte Carlo variance reduction techniques were designed for tallies based on individual particles rather than groups of particles. Experience with non-Boltzmann tallies and analog Monte Carlo has demonstrated the severe limitations of analog Monte Carlo for many non-Boltzmann tallies. In fact, many calculations absolutely require variance reduction methods to achieve practical computation times. Three different approaches to variance reduction for non-Boltzmann tallies are described and shown to be unbiased. The advantages and disadvantages of each of the approaches are discussed

  20. Variational Monte Carlo Technique

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 19; Issue 8. Variational Monte Carlo Technique: Ground State Energies of Quantum Mechanical Systems. Sukanta Deb. General Article Volume 19 Issue 8 August 2014 pp 713-739 ...

  1. Discrete diffusion Monte Carlo for frequency-dependent radiative transfer

    International Nuclear Information System (INIS)

    Densmore, Jeffery D.; Thompson, Kelly G.; Urbatsch, Todd J.

    2011-01-01

    Discrete Diffusion Monte Carlo (DDMC) is a technique for increasing the efficiency of Implicit Monte Carlo radiative-transfer simulations. In this paper, we develop an extension of DDMC for frequency-dependent radiative transfer. We base our new DDMC method on a frequency integrated diffusion equation for frequencies below a specified threshold. Above this threshold we employ standard Monte Carlo. With a frequency-dependent test problem, we confirm the increased efficiency of our new DDMC technique. (author)

  2. Evaluationof water erosionchanges insurfacesoilin differentplantcoverof Awatershedin Alegre, ESAvaliação da erosão hidrica pela alteração na superfície do solo em diferentes coberturas vegetais de uma sub-bacia hidrográfica no Município de Alegre, ES

    Directory of Open Access Journals (Sweden)

    Cássio Fanchiotti Del Caro

    2012-08-01

    Full Text Available Erosion is the process of detachment, drag and deposition of soil particles, which caused the loss of productive capacity of soils, siltation, and eutrophication and the loss of quality of surface waters. Keep this degradation process at tolerable levels is a major environmental concerns with this work aimed to evaluate the losses of soil in a pasture and forest regeneration through a simple temporal and economically – Pin Method. The study consisted of two experimental plots located in the watershed of the Rio Jacaré, Alegre – ES, with 108 square meters each, under different cover crops, pasture and natural forest regeneration. Methodology by changing the surface of the soil, dug up 40 stakes in the ground, where he proceeded to read monthly. It was observed an average loss of 6.08 Mg ha-1 month-1 and 3.34 Mg ha-1 month-1 soil, pasture and regeneration, respectively. The average reading of the stakes in the pasture was 51,85% higher than in regeneration.

  3. Ludopatía y epilepsia en demencia frontotemporal: Reporte de dos casos

    Directory of Open Access Journals (Sweden)

    Sheila Castro-Suarez

    Full Text Available RESUMEN La demencia frontotemporal es un trastorno neurodegenerativo cuyo subtipo más común es la variante conductual. Es considerada la causa de demencia más frecuente en menores de 60 años. Se presentan dos casos no emparentados cuyos síntomas típicos fueron: deterioro progresivo de la cognición, del comportamiento, alteraciones psiquiátricas como desinhibición, actos impulsivos, apatía, falta de empatía, estereotipias y cambios en los hábitos de alimentación. La resonancia magnética cerebral, en ambos casos, mostró atrofia frontotemporal a predominio izquierdo; en la evaluación neuropsicológica se evidenció alteraciones de las funciones ejecutivas. El primer caso cursó con ludopatía como síntoma inicial, motivo por el cual permaneció por un año en un centro psiquiátrico, siendo el segundo en Latinoamérica y uno de los pocos casos reportados en el mundo. El segundo caso presentó crisis epilépticas en su evolución.

  4. Modified Monte Carlo procedure for particle transport problems

    International Nuclear Information System (INIS)

    Matthes, W.

    1978-01-01

    The simulation of photon transport in the atmosphere with the Monte Carlo method forms part of the EURASEP-programme. The specifications for the problems posed for a solution were such, that the direct application of the analogue Monte Carlo method was not feasible. For this reason the standard Monte Carlo procedure was modified in the sense that additional properly weighted branchings at each collision and transport process in a photon history were introduced. This modified Monte Carlo procedure leads to a clear and logical separation of the essential parts of a problem and offers a large flexibility for variance reducing techniques. More complex problems, as foreseen in the EURASEP-programme (e.g. clouds in the atmosphere, rough ocean-surface and chlorophyl-distribution in the ocean) can be handled by recoding some subroutines. This collision- and transport-splitting procedure can of course be performed differently in different space- and energy regions. It is applied here only for a homogeneous problem

  5. Uncertainty analysis in Monte Carlo criticality computations

    International Nuclear Information System (INIS)

    Qi Ao

    2011-01-01

    Highlights: ► Two types of uncertainty methods for k eff Monte Carlo computations are examined. ► Sampling method has the least restrictions on perturbation but computing resources. ► Analytical method is limited to small perturbation on material properties. ► Practicality relies on efficiency, multiparameter applicability and data availability. - Abstract: Uncertainty analysis is imperative for nuclear criticality risk assessments when using Monte Carlo neutron transport methods to predict the effective neutron multiplication factor (k eff ) for fissionable material systems. For the validation of Monte Carlo codes for criticality computations against benchmark experiments, code accuracy and precision are measured by both the computational bias and uncertainty in the bias. The uncertainty in the bias accounts for known or quantified experimental, computational and model uncertainties. For the application of Monte Carlo codes for criticality analysis of fissionable material systems, an administrative margin of subcriticality must be imposed to provide additional assurance of subcriticality for any unknown or unquantified uncertainties. Because of a substantial impact of the administrative margin of subcriticality on economics and safety of nuclear fuel cycle operations, recently increasing interests in reducing the administrative margin of subcriticality make the uncertainty analysis in criticality safety computations more risk-significant. This paper provides an overview of two most popular k eff uncertainty analysis methods for Monte Carlo criticality computations: (1) sampling-based methods, and (2) analytical methods. Examples are given to demonstrate their usage in the k eff uncertainty analysis due to uncertainties in both neutronic and non-neutronic parameters of fissionable material systems.

  6. Babesiose cerebral em bovinos: 20 casos

    Directory of Open Access Journals (Sweden)

    Rodrigues Aline

    2005-01-01

    Full Text Available Num estudo retrospectivo de 1.071 necropsias de bovinos, foram encontrados 20 casos de babesiose cerebral confirmados pelo exame de esfregaços do córtex telencefálico. A maioria desses casos ocorreu no verão, em bovinos adultos de raças européias ou suas cruzas. Além dos sinais clínicos neurológicos, observou-se hemoglobinúria, anorexia, febre, taquicardia, taquipnéia e queda na produção de leite. O hemograma realizado em cinco bovinos afetados revelou acentuada anemia regenerativa; em média, 20% dos eritrócitos estavam parasitados por Babesia bovis. Na necropsia de todos os casos, a substância cinzenta dos córtices telencefálico e cerebelar e dos núcleos da base era consistente e caracteristicamente róseo-cereja. Essa coloração devia-se ao seqüestro de eritrócitos nos capilares encefálicos. Nesses eritrócitos, podiam-se observar, tanto em esfregaços do córtex como em preparações histológicas do encéfalo, microorganismos com morfologia compatível com B. bovis. Outros achados de necropsia incluíam hemoglobinúria, rins vermelho-escuros, hepatoesplenomegalia, fígado vermelho-alaranjado, icterícia, hemorragias epicárdicas e endocárdicas e edema e congestão dos linfonodos mesentéricos.

  7. Avaliação da presença de microrganismos indicadores higiênico-sanitários em alimentos servidos em escolas públicas de Porto Alegre, Brasil Evaluation of the presence of hygienic and sanitary indicator microorganisms in food served in public schools in Porto Alegre, Brazil

    Directory of Open Access Journals (Sweden)

    Marisa Ribeiro de Itapema Cardoso

    2013-04-01

    Full Text Available Este estudo tem por objetivo avaliar a presença de microrganismos indicadores higiênico-sanitários em amostras de alimentos servidos em escolas públicas de Porto Alegre. Foram analisados todos os alimentos servidos na refeição do turno da visita, quanto à presença de Escherichia coli, Staphylococcus coagulase positiva, Salmonella sp. e Shigella sp. No total de 196 alimentos analisados de 120 escolas, 4 apresentavam contagem de Escherichia coli acima do permitido e dois tinham a presença de Staphylococcus coagulase positiva. Os gêneros Shigella e Salmonella não foram encontrados. Foi observado que a maioria das escolas estudadas servia alimentos dentro de padrões higiênico-sanitários adequados. Foi evidenciado que somente escolas municipais contavam com a orientação de responsável técnico pela alimentação escolar. Das escolas estaduais 60% nunca haviam recebido visita de nutricionista nas quais foram encontrados procedimentos em desacordo com as exigências da legislação. Na maioria das escolas, os alimentos servidos estavam dentro de padrões adequados, porém os problemas detectados demonstram a necessidade da implantação das Boas Práticas no ambiente escolar.The objective of this study was to evaluate the presence of hygienic and sanitary indicator microorganisms in samples of food served in public schools in Porto Alegre. All the food served in the meal of the session visited was analyzed for Escherichia coli, coagulase-positive Staphylococcus, Salmonella sp. and Shigella sp. Of the total of 196 food products analyzed in 120 schools, 4 contained and Escherichia coli score above the permitted level, and 2 contained coagulase-positive Staphylococcus. Neither Shigella nor Salmonella genus were detected. In the majority of schools studied, it was found that food was of an adequate hygienic-sanitary standard. However, only municipal schools had the supervision of a technician responsible for school food. In the state

  8. Da invisibilidade à regularização fundiária : a trajetória legal da moradia de baixa renda em Porto Alegre-século XX

    OpenAIRE

    Betania de Moraes Alfonsin

    2000-01-01

    O objetivo desta dissertação é analisar a evolução da legislação urbanística do município de Porto Alegre, ao longo de todo o século XX, no que diz respeito ao tratamento que a mesma dispensou aos territórios de moradia da população de baixa renda nesta cidade do Sul do Brasil. Através de uma ampla pesquisa na legislação urbanística foi possível identificar seis grandes "Ciclos" históricos na trajetória da política habitacional conduzida pelo Governo municipal: 1. A invisibilização 2. A expul...

  9. An Overview of the Monte Carlo Application ToolKit (MCATK)

    Energy Technology Data Exchange (ETDEWEB)

    Trahan, Travis John [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-01-07

    MCATK is a C++ component-based Monte Carlo neutron-gamma transport software library designed to build specialized applications and designed to provide new functionality in existing general-purpose Monte Carlo codes like MCNP; it was developed with Agile software engineering methodologies under the motivation to reduce costs. The characteristics of MCATK can be summarized as follows: MCATK physics – continuous energy neutron-gamma transport with multi-temperature treatment, static eigenvalue (k and α) algorithms, time-dependent algorithm, fission chain algorithms; MCATK geometry – mesh geometries, solid body geometries. MCATK provides verified, unit-tested Monte Carlo components, flexibility in Monte Carlo applications development, and numerous tools such as geometry and cross section plotters. Recent work has involved deterministic and Monte Carlo analysis of stochastic systems. Static and dynamic analysis is discussed, and the results of a dynamic test problem are given.

  10. A autogestão ensinando e encenando: um estudo etnográfico em uma organização cultural de Porto Alegre. The self-management teaching and performing: an ethnographic study in a cultural organization in Porto Alegre

    Directory of Open Access Journals (Sweden)

    Leonardo Flach

    2011-12-01

    Full Text Available This article aims to analyze the forms of cultural and autonomous social movements, based on an ethnographic study in a theater group in Porto Alegre. The study emphasizes the importance of some manage actions in cultural organizations in order to maintain cultural identity and regional development, in a new form of relationship with the private and state sphere. The theoretical effort is the search of the sociological origins of the concept, from the perspectives of Marx and Proudhon, covering also a revision of contemporary authors. Within the academic community the concept takes space, in the search for other forms of organization in society and against the pressures of the neoliberalism and globalization. It is concluded that cultural organizations have potential to act again the problems of the capitalism, dealing with democratic principles, and with a horizontal and flexible structure.Este artigo tem por objetivo analisar as formas de autogestão de organizações culturais, com base em um estudo etnográfico em uma organização cultural de Porto Alegre. O estudo ressalta a importância de ações de autogestão em organizações culturais como forma de manter a identidade cultural regional e o desenvolvimento local, sendo uma forma alternativa de prática organizacional, de relação com a esfera privada e com o Estado. O esforço teórico é pela busca das origens sociológicas do conceito, a partir das perspectivas de Marx e Proudhon, abrangendo a revisão sobre outra possibilidade de gestão de organizações. Dentro da comunidade acadêmica, o conceito adquire novamente espaço, por buscar outras formas de organização na sociedade e desenvolvimento local, em detrimento às pressões do modelo neoliberal e da globalização. Conclui-se que organizações culturais autogeridas possuem potencial de ação frente às disfunções do capitalismo vigente, tratando, com princípios democráticos, uma estrutura horizontal e flex

  11. Efficiency and accuracy of Monte Carlo (importance) sampling

    NARCIS (Netherlands)

    Waarts, P.H.

    2003-01-01

    Monte Carlo Analysis is often regarded as the most simple and accurate reliability method. Be-sides it is the most transparent method. The only problem is the accuracy in correlation with the efficiency. Monte Carlo gets less efficient or less accurate when very low probabilities are to be computed

  12. Aprender a dormir sin mam??: estudio de casos

    OpenAIRE

    ??lvarez Lozano, Marta

    2015-01-01

    Dado el caso de un ni??o con un h??bito incorrecto de sue??o, con sus correspondientes consecuencias, se lleva a cabo un estudio de casos que pretende modificar este h??bito a trav??s de un programa de intervenci??n basado en la reeducaci??n del sue??o mediante la modificaci??n de conducta. Para proceder a modificarla se ha trabajado con un m??todo de desensibilizaci??n sistem??tica, que a su vez, se ayuda de un sistema de econom??a de fichas para causar motivaci??n en el sujeto, y adem??s, d...

  13. Suppression of the initial transient in Monte Carlo criticality simulations; Suppression du regime transitoire initial des simulations Monte-Carlo de criticite

    Energy Technology Data Exchange (ETDEWEB)

    Richet, Y

    2006-12-15

    Criticality Monte Carlo calculations aim at estimating the effective multiplication factor (k-effective) for a fissile system through iterations simulating neutrons propagation (making a Markov chain). Arbitrary initialization of the neutron population can deeply bias the k-effective estimation, defined as the mean of the k-effective computed at each iteration. A simplified model of this cycle k-effective sequence is built, based on characteristics of industrial criticality Monte Carlo calculations. Statistical tests, inspired by Brownian bridge properties, are designed to discriminate stationarity of the cycle k-effective sequence. The initial detected transient is, then, suppressed in order to improve the estimation of the system k-effective. The different versions of this methodology are detailed and compared, firstly on a plan of numerical tests fitted on criticality Monte Carlo calculations, and, secondly on real criticality calculations. Eventually, the best methodologies observed in these tests are selected and allow to improve industrial Monte Carlo criticality calculations. (author)

  14. Monte Carlo criticality analysis for dissolvers with neutron poison

    International Nuclear Information System (INIS)

    Yu, Deshun; Dong, Xiufang; Pu, Fuxiang.

    1987-01-01

    Criticality analysis for dissolvers with neutron poison is given on the basis of Monte Carlo method. In Monte Carlo calculations of thermal neutron group parameters for fuel pieces, neutron transport length is determined in terms of maximum cross section approach. A set of related effective multiplication factors (K eff ) are calculated by Monte Carlo method for the three cases. Related numerical results are quite useful for the design and operation of this kind of dissolver in the criticality safety analysis. (author)

  15. Evaluation of the potential of water aquifers located in the field of production of Fazenda Alegre, in the municipality of Jaguare, northern state of Espirito Santo, Brazil: a new horizon for the rational and sustainable use of groundwater by the local community; Avaliacao do potencial hidrico dos aquiferos situados no campo de producao de Fazenda Alegre, no municipio de Jaguare, norte do estado do Espirito Santo, Brasil: um novo horizonte para o uso racional e sustentado da agua subterranea pela comunidade local

    Energy Technology Data Exchange (ETDEWEB)

    Leal, Claudio A.; Rodriguez, Sergio G.H. [PETROBRAS, Vitoria, ES (Brazil). Unidade de Negocio

    2004-07-01

    Petroleo Brasileiro S.A - PETROBRAS, through Espirito Santo Business Unit, has been intensifying the utilization of underwater on its onshore production activities, where the utilization of water or steam injection techniques on the reservoir rock become necessary, aiming at supplemental hydrocarbons recovery in the mature fields or heavy oil fields, such as Fazenda Alegre field. The hydrogeologic study of the groundwater potential appears as a tool capable to improve the planning and utilization of the hydro resources of the region. The main tool used was the geophysics investigation of electric resistivity technique able to investigate aquifers as deep as 200 m. The drilling of the first wells selected proves the expectations according to the groundwater potential resources of the area. The maximum rate water obtained before that was about 30 m{sup 3}/h. Considering deeper wells (180 m), which incorporate news aquifers, it practically doubles, achieving values in a set of 60 m{sup 3}/h. The characterization of these recent discoveries/aquifers is a sign of news horizons for the local society, especially concerning the possibility of giving support in agricultural projects and rural communities supply concomitant with the process of petroleum projects expected in Fazenda Alegre helping thus, the sustainable development in the areas surrounding the project. (author)

  16. Modos de construcción de la memoria en la primera novela chilena experimental antidictadura: El paso de los gansos (1975 de Fernando Alegría

    Directory of Open Access Journals (Sweden)

    Patricia Espinosa

    2018-01-01

    Full Text Available Este artículo se dedica a evidenciar los modos de construcción de la memoria y la crisis de representación en la novela El paso de los gansos(1975 de Fernando Alegría (1918-2005. El volumen, otorga un lugar preferencial a Cristian Montealegre fotógrafo y víctima de la represión, cuyas  fotografías operan como testimonio de su experiencia en el contexto de los dos primeros meses de la dictadura. De esta forma, una de las dos primeras novelas chilenas antidictadura expone el golpe y las crisis que este hecho desata por medio de la intensificación de la relación entre palabra e imagen.

  17. Improvements for Monte Carlo burnup calculation

    Energy Technology Data Exchange (ETDEWEB)

    Shenglong, Q.; Dong, Y.; Danrong, S.; Wei, L., E-mail: qiangshenglong@tsinghua.org.cn, E-mail: d.yao@npic.ac.cn, E-mail: songdr@npic.ac.cn, E-mail: luwei@npic.ac.cn [Nuclear Power Inst. of China, Cheng Du, Si Chuan (China)

    2015-07-01

    Monte Carlo burnup calculation is development trend of reactor physics, there would be a lot of work to be done for engineering applications. Based on Monte Carlo burnup code MOI, non-fuel burnup calculation methods and critical search suggestions will be mentioned in this paper. For non-fuel burnup, mixed burnup mode will improve the accuracy of burnup calculation and efficiency. For critical search of control rod position, a new method called ABN based on ABA which used by MC21 will be proposed for the first time in this paper. (author)

  18. Monte Carlo dose distributions for radiosurgery

    International Nuclear Information System (INIS)

    Perucha, M.; Leal, A.; Rincon, M.; Carrasco, E.

    2001-01-01

    The precision of Radiosurgery Treatment planning systems is limited by the approximations of their algorithms and by their dosimetrical input data. This fact is especially important in small fields. However, the Monte Carlo methods is an accurate alternative as it considers every aspect of particle transport. In this work an acoustic neurinoma is studied by comparing the dose distribution of both a planning system and Monte Carlo. Relative shifts have been measured and furthermore, Dose-Volume Histograms have been calculated for target and adjacent organs at risk. (orig.)

  19. Quasi Monte Carlo methods for optimization models of the energy industry with pricing and load processes; Quasi-Monte Carlo Methoden fuer Optimierungsmodelle der Energiewirtschaft mit Preis- und Last-Prozessen

    Energy Technology Data Exchange (ETDEWEB)

    Leoevey, H.; Roemisch, W. [Humboldt-Univ., Berlin (Germany)

    2015-07-01

    We discuss progress in quasi Monte Carlo methods for numerical calculation integrals or expected values and justify why these methods are more efficient than the classic Monte Carlo methods. Quasi Monte Carlo methods are found to be particularly efficient if the integrands have a low effective dimension. That's why We also discuss the concept of effective dimension and prove on the example of a stochastic Optimization model of the energy industry that such models can posses a low effective dimension. Modern quasi Monte Carlo methods are therefore for such models very promising. [German] Wir diskutieren Fortschritte bei Quasi-Monte Carlo Methoden zur numerischen Berechnung von Integralen bzw. Erwartungswerten und begruenden warum diese Methoden effizienter sind als die klassischen Monte Carlo Methoden. Quasi-Monte Carlo Methoden erweisen sich als besonders effizient, falls die Integranden eine geringe effektive Dimension besitzen. Deshalb diskutieren wir auch den Begriff effektive Dimension und weisen am Beispiel eines stochastischen Optimierungsmodell aus der Energiewirtschaft nach, dass solche Modelle eine niedrige effektive Dimension besitzen koennen. Moderne Quasi-Monte Carlo Methoden sind deshalb fuer solche Modelle sehr erfolgversprechend.

  20. Shell model Monte Carlo methods

    International Nuclear Information System (INIS)

    Koonin, S.E.; Dean, D.J.; Langanke, K.

    1997-01-01

    We review quantum Monte Carlo methods for dealing with large shell model problems. These methods reduce the imaginary-time many-body evolution operator to a coherent superposition of one-body evolutions in fluctuating one-body fields; the resultant path integral is evaluated stochastically. We first discuss the motivation, formalism, and implementation of such Shell Model Monte Carlo (SMMC) methods. There then follows a sampler of results and insights obtained from a number of applications. These include the ground state and thermal properties of pf-shell nuclei, the thermal and rotational behavior of rare-earth and γ-soft nuclei, and the calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are discussed. (orig.)

  1. Monte Carlo Methods in ICF

    Science.gov (United States)

    Zimmerman, George B.

    Monte Carlo methods appropriate to simulate the transport of x-rays, neutrons, ions and electrons in Inertial Confinement Fusion targets are described and analyzed. The Implicit Monte Carlo method of x-ray transport handles symmetry within indirect drive ICF hohlraums well, but can be improved 50X in efficiency by angular biasing the x-rays towards the fuel capsule. Accurate simulation of thermonuclear burn and burn diagnostics involves detailed particle source spectra, charged particle ranges, inflight reaction kinematics, corrections for bulk and thermal Doppler effects and variance reduction to obtain adequate statistics for rare events. It is found that the effects of angular Coulomb scattering must be included in models of charged particle transport through heterogeneous materials.

  2. Monte Carlo methods in ICF

    International Nuclear Information System (INIS)

    Zimmerman, George B.

    1997-01-01

    Monte Carlo methods appropriate to simulate the transport of x-rays, neutrons, ions and electrons in Inertial Confinement Fusion targets are described and analyzed. The Implicit Monte Carlo method of x-ray transport handles symmetry within indirect drive ICF hohlraums well, but can be improved 50X in efficiency by angular biasing the x-rays towards the fuel capsule. Accurate simulation of thermonuclear burn and burn diagnostics involves detailed particle source spectra, charged particle ranges, inflight reaction kinematics, corrections for bulk and thermal Doppler effects and variance reduction to obtain adequate statistics for rare events. It is found that the effects of angular Coulomb scattering must be included in models of charged particle transport through heterogeneous materials

  3. Homicides among teenagers in the city of Porto Alegre, Rio Grande do Sul State, Brazil: vulnerability, susceptibility, and gender cultures

    Directory of Open Access Journals (Sweden)

    Sant'Anna Ana Rosária

    2002-01-01

    Full Text Available The authors present a quantitative and qualitative study on homicides among teenagers in Porto Alegre, Rio Grande do Sul State, Brazil, based on a historical series during the 1990s and the life and death histories in this group, with a special focus on 1997. In that year there were 68 homicides in which the victims were from 10 to 19 years old. Of the 68, 62 were males and only 6 females, or a ratio of 10:1, showing that young males are more vulnerable and susceptible to being murdered. The data indicate that cause of death is influenced by gender culture and that homicides are based on power and status symbols characterizing a kind of virility. This expression of virility in the shaping of violence also appears in the domination of the female body observed in homicides with young women as the victims. The life and death histories of these teenagers highlight the pertinence of the gender-based analysis as a theoretical-analytical category, in addition to analyses considering socioeconomic aspects and social inequity.

  4. [Evaluation of the presence of hygienic and sanitary indicator microorganisms in food served in public schools in Porto Alegre, Brazil].

    Science.gov (United States)

    de Oliveira, Ana Beatriz Almeida; Capalonga, Roberta; Silveira, Joice Trindade; Tondo, Eduardo Cesar; Cardoso, Marisa Ribeiro de Itapema

    2013-04-01

    The objective of this study was to evaluate the presence of hygienic and sanitary indicator microorganisms in samples of food served in public schools in Porto Alegre. All the food served in the meal of the session visited was analyzed for Escherichia coli, coagulase-positive Staphylococcus, Salmonella sp. and Shigella sp. Of the total of 196 food products analyzed in 120 schools, 4 contained and Escherichia coli score above the permitted level, and 2 contained coagulase-positive Staphylococcus. Neither Shigella nor Salmonella genus were detected. In the majority of schools studied, it was found that food was of an adequate hygienic-sanitary standard. However, only municipal schools had the supervision of a technician responsible for school food. In the state schools, 60% had never been visited by a nutritionist and in these schools several procedures failed to comply with legal requirements. In most of the schools studied, the food served to students was within adequate standards, though the problems detected revealed the need for the implementation of Best Practices in the school environment.

  5. AUTÓMATA ESTOCÁSTICO HÍBRIDO Y SIMULACIÓN DE MONTE CARLO PARA LA PREDICCIÓN DE LA SEGURIDAD DE FUNCIONAMIENTO DE UN SISTEMA DINAMICO

    Directory of Open Access Journals (Sweden)

    GABRIEL ANTONIO PÉREZ CASTAÑEDA

    2011-01-01

    Full Text Available Un sistema dinámico híbrido es descrito por un conjunto de variables continuas y un conjunto de eventos discretos interactuando mutuamente. Ciertos eventos o variables toman un carácter estocástico. Por tal motivo, se deben tomar en cuenta las fallas de los componentes o las incertidumbres sobre el conocimiento del sistema. En este artículo se presenta la evaluación de los parámetros de la seguridad de funcionamiento por simulación de Monte Carlo dentro del contexto de la fiabilidad dinámica. El sistema es modelizado a través de un autómata estocástico híbrido. El método es ilustrado a través de un caso representado por el sistema de regulación de la temperatura de un horno.

  6. BREM5 electroweak Monte Carlo

    International Nuclear Information System (INIS)

    Kennedy, D.C. II.

    1987-01-01

    This is an update on the progress of the BREMMUS Monte Carlo simulator, particularly in its current incarnation, BREM5. The present report is intended only as a follow-up to the Mark II/Granlibakken proceedings, and those proceedings should be consulted for a complete description of the capabilities and goals of the BREMMUS program. The new BREM5 program improves on the previous version of BREMMUS, BREM2, in a number of important ways. In BREM2, the internal loop (oblique) corrections were not treated in consistent fashion, a deficiency that led to renormalization scheme-dependence; i.e., physical results, such as cross sections, were dependent on the method used to eliminate infinities from the theory. Of course, this problem cannot be tolerated in a Monte Carlo designed for experimental use. BREM5 incorporates a new way of treating the oblique corrections, as explained in the Granlibakken proceedings, that guarantees renormalization scheme-independence and dramatically simplifies the organization and calculation of radiative corrections. This technique is to be presented in full detail in a forthcoming paper. BREM5 is, at this point, the only Monte Carlo to contain the entire set of one-loop corrections to electroweak four-fermion processes and renormalization scheme-independence. 3 figures

  7. Angioma de iris: a propósito de un caso

    Directory of Open Access Journals (Sweden)

    José L. Torres-Peña

    2017-07-01

    Discusión: Sintomáticamente lo más frecuente en los angiomas de iris es el hifema transitorio como pudo presentar nuestro paciente, aunque también se ha descrito aumentos de la presión intraocular producto de los hifemas de repetición en algún caso aislado. El manejo habitual es la observación aunque algunos casos requieren resección quirúrgica.

  8. PEPSI: a Monte Carlo generator for polarized leptoproduction

    International Nuclear Information System (INIS)

    Mankiewicz, L.

    1992-01-01

    We describe PEPSI (Polarized Electron Proton Scattering Interactions) a Monte Carlo program for the polarized deep inelastic leptoproduction mediated by electromagnetic interaction. The code is a modification of the LEPTO 4.3 Lund Monte Carlo for unpolarized scattering and requires the standard polarization-independent JETSET routines to perform fragmentation into final hadrons. (orig.)

  9. Síndrome metabólica em idosos da atenção terciária em Porto Alegre, Rio Grande do Sul: associação com o índice de alimentação saudáve = Metabolic syndrome in elderly from tertiary health care in Porto Alegre, Rio Grande do Sul, Brazil: association with the healthy eating index

    OpenAIRE

    Closs, Vera Elizabeth; Feoli, Ana Maria Pandolfo; Schwanke, Carla Helena Augustin

    2016-01-01

    Objetivos: Avaliar a associação entre síndrome metabólica e Índice de Alimentação Saudável em idosos atendidos em um serviço de atenção terciária pelo Sistema Único de Saúde. Métodos: Estudo transversal, realizado no ambulatório do Serviço de Geriatria do Hospital São Lucas da Pontifícia Universidade Católica do Rio Grande do Sul, em Porto Alegre, RS, entre novembro de 2009 e novembro de 2010. Foram convidados a participar do estudo todos os idosos atendidos no período, sendo excluídos aquele...

  10. Aspectos disautonômicos da porfiria aguda intermitente: a propósito de seis casos

    Directory of Open Access Journals (Sweden)

    Charles P. Tilbery

    1979-06-01

    Full Text Available Foram estudados seis casos de porfiria aguda intermitente, sendo enfocados os aspectos disautonômicos apresentados durante a longa permanência hospitalar dos doentes (média de 64 dias. Foram observados taquicardia sinusal e hipertensão arterial (4 casos, parada cardíaca (3 casos e depressão respiratória (5 casos. Os autores tecem comentários a propósito da fisiopatologia destas alterações e chamam a atenção sobre o prognóstico sombrio da porfiria aguda intermitente.

  11. Importance estimation in Monte Carlo modelling of neutron and photon transport

    International Nuclear Information System (INIS)

    Mickael, M.W.

    1992-01-01

    The estimation of neutron and photon importance in a three-dimensional geometry is achieved using a coupled Monte Carlo and diffusion theory calculation. The parameters required for the solution of the multigroup adjoint diffusion equation are estimated from an analog Monte Carlo simulation of the system under investigation. The solution of the adjoint diffusion equation is then used as an estimate of the particle importance in the actual simulation. This approach provides an automated and efficient variance reduction method for Monte Carlo simulations. The technique has been successfully applied to Monte Carlo simulation of neutron and coupled neutron-photon transport in the nuclear well-logging field. The results show that the importance maps obtained in a few minutes of computer time using this technique are in good agreement with Monte Carlo generated importance maps that require prohibitive computing times. The application of this method to Monte Carlo modelling of the response of neutron porosity and pulsed neutron instruments has resulted in major reductions in computation time. (Author)

  12. Estudo de caso: neuropatia auditiva/dessincronia auditiva

    Directory of Open Access Journals (Sweden)

    Milaine Dominici Sanfins

    2017-03-01

    Full Text Available Este trabalho teve por objetivo relatar um caso de Neuropatia auditiva/Dessincronia auditiva (NA. A Neuropatia auditiva/Dessincronia auditiva é um transtorno que foi identificado há vinte anos; os pacientes que possuíam este transtorno eram diagnosticados como deficientes auditivos como conseqüência da ausência dos exames de emissões otoacústicas na bateria de testes de avaliação auditiva. O paciente foi avaliado por meio de testes audiológicos: imitanciometria, audiometria tonal limiar, emissões otoacústicas e potencial evocado auditivo de tronco-encefálico. Os resultados sugerem que o paciente apresenta um quadro sugestivo de NA e alertam para a necessidade de acompanhar longitudinalmente os casos de suspeita do transtorno.

  13. dos estudios de caso

    Directory of Open Access Journals (Sweden)

    Daniel Kersffeld

    2013-01-01

    Full Text Available La UNASUR se ha destacado desde sus inicios en la compleja labor de mediación y resolución de conflictos internacionales. Para ello, esta entidad multilateral ha apelado a distintas fórmulas políticas tendientes al encausamiento de problemáticas y conflictos apartados del camino de la institucionalidad y de los medios tradicionales de resolución. Con todo, y pese a la búsqueda de caminos alternativos, han sido las cumbres presidenciales la principal herramienta destinada a encontrar soluciones innovadoras y respetuosas del orden democrático y constitucional de los países sudamericanos. En este artículo se analiza de manera específica la actuación de la unasur en dos casos de profunda gravedad institucional: el intento de golpe de Estado ocurrido en Ecuador el 30 de septiembre de 2010 y el derrocamiento del ex presidente Fernando Lugo en Paraguay en junio de 2012. Luego de analizar estos dos casos extremos, y las implicancias políticas generadas, se avanza en una visión comprensiva acerca del éxito o el fracaso del papel político de la unasur como instancia de resolución de conflictos a nivel internacional.

  14. Morfea o esclerodermia localizada juvenil: caso clínico

    OpenAIRE

    Strickler, Alexis; Gallo, Silvanna; Jaramillo, Pedro; de Toro, Gonzalo

    2016-01-01

    Introducción: La morfea o esclerodermia localizada juvenil (ELJ) es una enfermedad autoinmune, inflamatoria, crónica, lenta y progresiva del tejido conectivo, de causa desconocida, que afecta preferentemente la piel y los tejidos subyacentes. Objetivos: Comunicar un caso de esclerodermia localizada juvenil en una escolar, y contribuir a un diagnóstico y tratamiento oportuno de esta patología. Caso clínico: Niña de 8 años con placas induradas hipopigmentadas, de distribución lineal en la extre...

  15. CaSO4:DY,Mn: A new and highly sensitive thermoluminescence phosphor for versatile dosimetry

    Science.gov (United States)

    Bahl, Shaila; Lochab, S. P.; Kumar, Pratik

    2016-02-01

    With the advent of newer techniques for dose reduction coupled with the development of more sensitive detectors, the radiation doses in radiological medical investigation are decreasing. Nevertheless, keeping the tenet in mind that all radiation doses could entail risk, there is a need to develop more sensitive dosimeters capable of measuring low doses. This paper gives the account of the development of a new and sensitive phosphor CaSO4:Dy,Mn and its characterization. The standard production procedure based on the recrystallization method was used to prepare CaSO4:Dy,Mn. The Thermoluminescence (TL) studies were carried out by exposing it with gamma radiation (Cs-137) from 10 μGy to 100 Gy. The theoretical studies to determine the number of peaks and kinetic parameters related to the TL glow peaks in CaSO4:Dy,Mn was performed using the Computerized Glow Curve Deconvolution (CGCD) method. Experiments were performed to determine optimum concentration of the dopants Dysprosium (Dy) and Mangnese (Mn) in the host CaSO4 so that maximum sensitivity of the phosphor may be achieved. The optimum dopant concentration turned out to be 0.1 mol%. As there were two dopants Dy and Mn their relative ratio were varied in steps of 0.025 keeping the concentration of total dopant (Dy and Mn) 0.1 mol% always. The maximum TL intensity was seen in the CaSO4:Dy(0.025),Mn(0.075) combination. The TL sensitivity of this phosphor was found to be about 2 and 1.8 times higher than that of popular phosphor CaSO4:Dy and LiF:Mg,Cu,P (TLD-700H) respectively. This new phosphor CaSO4:Dy,Mn showed fading of 11% which is similar to that of the standard phosphor CaSO4:Dy. The paper concludes that the new, highly sensitive TL phosphor CaSO4:Dy,Mn has shown higher sensitivity and hence the potential to replace commonly used CaSO4:Dy.

  16. Iterative acceleration methods for Monte Carlo and deterministic criticality calculations

    Energy Technology Data Exchange (ETDEWEB)

    Urbatsch, T.J.

    1995-11-01

    If you have ever given up on a nuclear criticality calculation and terminated it because it took so long to converge, you might find this thesis of interest. The author develops three methods for improving the fission source convergence in nuclear criticality calculations for physical systems with high dominance ratios for which convergence is slow. The Fission Matrix Acceleration Method and the Fission Diffusion Synthetic Acceleration (FDSA) Method are acceleration methods that speed fission source convergence for both Monte Carlo and deterministic methods. The third method is a hybrid Monte Carlo method that also converges for difficult problems where the unaccelerated Monte Carlo method fails. The author tested the feasibility of all three methods in a test bed consisting of idealized problems. He has successfully accelerated fission source convergence in both deterministic and Monte Carlo criticality calculations. By filtering statistical noise, he has incorporated deterministic attributes into the Monte Carlo calculations in order to speed their source convergence. He has used both the fission matrix and a diffusion approximation to perform unbiased accelerations. The Fission Matrix Acceleration method has been implemented in the production code MCNP and successfully applied to a real problem. When the unaccelerated calculations are unable to converge to the correct solution, they cannot be accelerated in an unbiased fashion. A Hybrid Monte Carlo method weds Monte Carlo and a modified diffusion calculation to overcome these deficiencies. The Hybrid method additionally possesses reduced statistical errors.

  17. Iterative acceleration methods for Monte Carlo and deterministic criticality calculations

    International Nuclear Information System (INIS)

    Urbatsch, T.J.

    1995-11-01

    If you have ever given up on a nuclear criticality calculation and terminated it because it took so long to converge, you might find this thesis of interest. The author develops three methods for improving the fission source convergence in nuclear criticality calculations for physical systems with high dominance ratios for which convergence is slow. The Fission Matrix Acceleration Method and the Fission Diffusion Synthetic Acceleration (FDSA) Method are acceleration methods that speed fission source convergence for both Monte Carlo and deterministic methods. The third method is a hybrid Monte Carlo method that also converges for difficult problems where the unaccelerated Monte Carlo method fails. The author tested the feasibility of all three methods in a test bed consisting of idealized problems. He has successfully accelerated fission source convergence in both deterministic and Monte Carlo criticality calculations. By filtering statistical noise, he has incorporated deterministic attributes into the Monte Carlo calculations in order to speed their source convergence. He has used both the fission matrix and a diffusion approximation to perform unbiased accelerations. The Fission Matrix Acceleration method has been implemented in the production code MCNP and successfully applied to a real problem. When the unaccelerated calculations are unable to converge to the correct solution, they cannot be accelerated in an unbiased fashion. A Hybrid Monte Carlo method weds Monte Carlo and a modified diffusion calculation to overcome these deficiencies. The Hybrid method additionally possesses reduced statistical errors

  18. Study on random number generator in Monte Carlo code

    International Nuclear Information System (INIS)

    Oya, Kentaro; Kitada, Takanori; Tanaka, Shinichi

    2011-01-01

    The Monte Carlo code uses a sequence of pseudo-random numbers with a random number generator (RNG) to simulate particle histories. A pseudo-random number has its own period depending on its generation method and the period is desired to be long enough not to exceed the period during one Monte Carlo calculation to ensure the correctness especially for a standard deviation of results. The linear congruential generator (LCG) is widely used as Monte Carlo RNG and the period of LCG is not so long by considering the increasing rate of simulation histories in a Monte Carlo calculation according to the remarkable enhancement of computer performance. Recently, many kinds of RNG have been developed and some of their features are better than those of LCG. In this study, we investigate the appropriate RNG in a Monte Carlo code as an alternative to LCG especially for the case of enormous histories. It is found that xorshift has desirable features compared with LCG, and xorshift has a larger period, a comparable speed to generate random numbers, a better randomness, and good applicability to parallel calculation. (author)

  19. Combinatorial geometry domain decomposition strategies for Monte Carlo simulations

    Energy Technology Data Exchange (ETDEWEB)

    Li, G.; Zhang, B.; Deng, L.; Mo, Z.; Liu, Z.; Shangguan, D.; Ma, Y.; Li, S.; Hu, Z. [Institute of Applied Physics and Computational Mathematics, Beijing, 100094 (China)

    2013-07-01

    Analysis and modeling of nuclear reactors can lead to memory overload for a single core processor when it comes to refined modeling. A method to solve this problem is called 'domain decomposition'. In the current work, domain decomposition algorithms for a combinatorial geometry Monte Carlo transport code are developed on the JCOGIN (J Combinatorial Geometry Monte Carlo transport INfrastructure). Tree-based decomposition and asynchronous communication of particle information between domains are described in the paper. Combination of domain decomposition and domain replication (particle parallelism) is demonstrated and compared with that of MERCURY code. A full-core reactor model is simulated to verify the domain decomposition algorithms using the Monte Carlo particle transport code JMCT (J Monte Carlo Transport Code), which has being developed on the JCOGIN infrastructure. Besides, influences of the domain decomposition algorithms to tally variances are discussed. (authors)

  20. Combinatorial geometry domain decomposition strategies for Monte Carlo simulations

    International Nuclear Information System (INIS)

    Li, G.; Zhang, B.; Deng, L.; Mo, Z.; Liu, Z.; Shangguan, D.; Ma, Y.; Li, S.; Hu, Z.

    2013-01-01

    Analysis and modeling of nuclear reactors can lead to memory overload for a single core processor when it comes to refined modeling. A method to solve this problem is called 'domain decomposition'. In the current work, domain decomposition algorithms for a combinatorial geometry Monte Carlo transport code are developed on the JCOGIN (J Combinatorial Geometry Monte Carlo transport INfrastructure). Tree-based decomposition and asynchronous communication of particle information between domains are described in the paper. Combination of domain decomposition and domain replication (particle parallelism) is demonstrated and compared with that of MERCURY code. A full-core reactor model is simulated to verify the domain decomposition algorithms using the Monte Carlo particle transport code JMCT (J Monte Carlo Transport Code), which has being developed on the JCOGIN infrastructure. Besides, influences of the domain decomposition algorithms to tally variances are discussed. (authors)

  1. An analysis on the costs of Belo Monte hydroelectric power plant; Uma analise sobre os custos da hidreletrica Belo Monte

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Marcos Vinicius Miranda da [Universidade de Sao Paulo (PIPGE/USP), SP (Brazil). Programa Interunidades de Pos-Graduacao em Energia], e-mail: energiapara@yahoo.com.br

    2008-07-01

    The Belo Monte hydropower plant's low generation cost is among the arguments used by Centrais Eletricas do Norte do Brazil (ELETRONORTE), a Brazilian state electric utility, to make possible its construction. This paper shows that the generation cost presented by ELETROBRAS is very low in relation to the world pattern of cost and probably unrealistic. It also shows that the generation cost cannot be used separately to determine the Belo Monte dam's economic feasibility. There is the need to include other costs, such as: socio environmental degradation and control, financial compensation for using the hydraulic resources, transmission and thermal backup stations, beyond, evidently, generation cost for assuring the credibility of the Belo Monte hydropower plant's economic analysis. (author)

  2. Monte Carlo method applied to medical physics

    International Nuclear Information System (INIS)

    Oliveira, C.; Goncalves, I.F.; Chaves, A.; Lopes, M.C.; Teixeira, N.; Matos, B.; Goncalves, I.C.; Ramalho, A.; Salgado, J.

    2000-01-01

    The main application of the Monte Carlo method to medical physics is dose calculation. This paper shows some results of two dose calculation studies and two other different applications: optimisation of neutron field for Boron Neutron Capture Therapy and optimization of a filter for a beam tube for several purposes. The time necessary for Monte Carlo calculations - the highest boundary for its intensive utilisation - is being over-passed with faster and cheaper computers. (author)

  3. A radiating shock evaluated using Implicit Monte Carlo Diffusion

    International Nuclear Information System (INIS)

    Cleveland, M.; Gentile, N.

    2013-01-01

    Implicit Monte Carlo [1] (IMC) has been shown to be very expensive when used to evaluate a radiation field in opaque media. Implicit Monte Carlo Diffusion (IMD) [2], which evaluates a spatial discretized diffusion equation using a Monte Carlo algorithm, can be used to reduce the cost of evaluating the radiation field in opaque media [2]. This work couples IMD to the hydrodynamics equations to evaluate opaque diffusive radiating shocks. The Lowrie semi-analytic diffusive radiating shock benchmark[a] is used to verify our implementation of the coupled system of equations. (authors)

  4. The Monte Carlo method the method of statistical trials

    CERN Document Server

    Shreider, YuA

    1966-01-01

    The Monte Carlo Method: The Method of Statistical Trials is a systematic account of the fundamental concepts and techniques of the Monte Carlo method, together with its range of applications. Some of these applications include the computation of definite integrals, neutron physics, and in the investigation of servicing processes. This volume is comprised of seven chapters and begins with an overview of the basic features of the Monte Carlo method and typical examples of its application to simple problems in computational mathematics. The next chapter examines the computation of multi-dimensio

  5. Automated Monte Carlo biasing for photon-generated electrons near surfaces.

    Energy Technology Data Exchange (ETDEWEB)

    Franke, Brian Claude; Crawford, Martin James; Kensek, Ronald Patrick

    2009-09-01

    This report describes efforts to automate the biasing of coupled electron-photon Monte Carlo particle transport calculations. The approach was based on weight-windows biasing. Weight-window settings were determined using adjoint-flux Monte Carlo calculations. A variety of algorithms were investigated for adaptivity of the Monte Carlo tallies. Tree data structures were used to investigate spatial partitioning. Functional-expansion tallies were used to investigate higher-order spatial representations.

  6. Applicability of quasi-Monte Carlo for lattice systems

    International Nuclear Information System (INIS)

    Ammon, Andreas; Deutsches Elektronen-Synchrotron; Hartung, Tobias; Jansen, Karl; Leovey, Hernan; Griewank, Andreas; Mueller-Preussker, Michael

    2013-11-01

    This project investigates the applicability of quasi-Monte Carlo methods to Euclidean lattice systems in order to improve the asymptotic error scaling of observables for such theories. The error of an observable calculated by averaging over random observations generated from ordinary Monte Carlo simulations scales like N -1/2 , where N is the number of observations. By means of quasi-Monte Carlo methods it is possible to improve this scaling for certain problems to N -1 , or even further if the problems are regular enough. We adapted and applied this approach to simple systems like the quantum harmonic and anharmonic oscillator and verified an improved error scaling of all investigated observables in both cases.

  7. Applicability of quasi-Monte Carlo for lattice systems

    Energy Technology Data Exchange (ETDEWEB)

    Ammon, Andreas [Berlin Humboldt-Univ. (Germany). Dept. of Physics; Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC; Hartung, Tobias [King' s College London (United Kingdom). Dept. of Mathematics; Jansen, Karl [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC; Leovey, Hernan; Griewank, Andreas [Berlin Humboldt-Univ. (Germany). Dept. of Mathematics; Mueller-Preussker, Michael [Berlin Humboldt-Univ. (Germany). Dept. of Physics

    2013-11-15

    This project investigates the applicability of quasi-Monte Carlo methods to Euclidean lattice systems in order to improve the asymptotic error scaling of observables for such theories. The error of an observable calculated by averaging over random observations generated from ordinary Monte Carlo simulations scales like N{sup -1/2}, where N is the number of observations. By means of quasi-Monte Carlo methods it is possible to improve this scaling for certain problems to N{sup -1}, or even further if the problems are regular enough. We adapted and applied this approach to simple systems like the quantum harmonic and anharmonic oscillator and verified an improved error scaling of all investigated observables in both cases.

  8. Uniform distribution and quasi-Monte Carlo methods discrepancy, integration and applications

    CERN Document Server

    Kritzer, Peter; Pillichshammer, Friedrich; Winterhof, Arne

    2014-01-01

    The survey articles in this book focus on number theoretic point constructions, uniform distribution theory, and quasi-Monte Carlo methods. As deterministic versions of the Monte Carlo method, quasi-Monte Carlo rules enjoy increasing popularity, with many fruitful applications in mathematical practice, as for example in finance, computer graphics, and biology.

  9. Clinical implementation of full Monte Carlo dose calculation in proton beam therapy

    International Nuclear Information System (INIS)

    Paganetti, Harald; Jiang, Hongyu; Parodi, Katia; Slopsema, Roelf; Engelsman, Martijn

    2008-01-01

    The goal of this work was to facilitate the clinical use of Monte Carlo proton dose calculation to support routine treatment planning and delivery. The Monte Carlo code Geant4 was used to simulate the treatment head setup, including a time-dependent simulation of modulator wheels (for broad beam modulation) and magnetic field settings (for beam scanning). Any patient-field-specific setup can be modeled according to the treatment control system of the facility. The code was benchmarked against phantom measurements. Using a simulation of the ionization chamber reading in the treatment head allows the Monte Carlo dose to be specified in absolute units (Gy per ionization chamber reading). Next, the capability of reading CT data information was implemented into the Monte Carlo code to model patient anatomy. To allow time-efficient dose calculation, the standard Geant4 tracking algorithm was modified. Finally, a software link of the Monte Carlo dose engine to the patient database and the commercial planning system was established to allow data exchange, thus completing the implementation of the proton Monte Carlo dose calculation engine ('DoC++'). Monte Carlo re-calculated plans are a valuable tool to revisit decisions in the planning process. Identification of clinically significant differences between Monte Carlo and pencil-beam-based dose calculations may also drive improvements of current pencil-beam methods. As an example, four patients (29 fields in total) with tumors in the head and neck regions were analyzed. Differences between the pencil-beam algorithm and Monte Carlo were identified in particular near the end of range, both due to dose degradation and overall differences in range prediction due to bony anatomy in the beam path. Further, the Monte Carlo reports dose-to-tissue as compared to dose-to-water by the planning system. Our implementation is tailored to a specific Monte Carlo code and the treatment planning system XiO (Computerized Medical Systems Inc

  10. Exponential convergence on a continuous Monte Carlo transport problem

    International Nuclear Information System (INIS)

    Booth, T.E.

    1997-01-01

    For more than a decade, it has been known that exponential convergence on discrete transport problems was possible using adaptive Monte Carlo techniques. An adaptive Monte Carlo method that empirically produces exponential convergence on a simple continuous transport problem is described

  11. Development of new dosemeters of CaSO_4

    International Nuclear Information System (INIS)

    Santos, Ana Gabryele M. dos; Junot, Danilo O.; Souza, Divanizia N.

    2016-01-01

    Thermoluminescent dosimeters (TLDs) are widely used in in vivo dosimetry because of their simple production, viability for dose determination in difficult geometries and their reusability. The motivation of this work was to produce CaSO_4 crystals doped with thulium (Tm) and analyze their thermoluminescent (TL) properties. The crystals were produced by a variation of slow evaporation route, and TL curves showed emission peaks centered around 190 ° C and 320 ° C after irradiation with a "9"0Sr /"9"0Y source. Thermoluminescent properties such as linearity, reproducibility and fading were evaluated. The CaSO_4:Tm samples produced proved feasible for dosimetry purposes. (author)

  12. Thermoluminescent dosemeters of CaSO4: Dy + Teflon

    International Nuclear Information System (INIS)

    Campos, L.L.

    1989-01-01

    The development of a pellet dosemeter of CaSO 4 : Dy + Teflon at the Dosimetric Materials Production Laboratory - IPEN/Brazilian CNEN-SP is presented. The pellets were produced by cold pressing and sintering a mixture of CaSO 4 : Dy and Teflon powders. The pellet characteristics from the point of view of dosimetry. A filter combination providing an energy independent response from 20 KeV to 1,25 MeV was obtained. The dosemeter consists of three pellets sealed between two thin plastic sheets and placed under plastic and lead filters. The combination of these three filters allows to determine the energy of an unknown source. (author) [pt

  13. EMBARAZO ECTÓPICO MOLAR CORNUAL: CASO CLÍNICO

    OpenAIRE

    Flores Acosta,Clara del Carmen; Barboza Quintana,Oralia; Vidal Gutiérrez,Oscar; Morales Martínez,Felipe

    2010-01-01

    Antecedentes: La incidencia de embarazo ectópico es 20/1000 embarazos y en la región cornual se presentan en el 2-4%. La mola hidatiforme ocurre en 1/1000 embarazos en EEUU y 1/500 en México. La presentación simultánea es muy rara. Se han descrito solamente 40 casos en la literatura médica, con una incidencia estimada de 0,04% de localización cornual. Caso clínico: Primigesta de 30 años, que cursando un embarazo de 8 semanas, acude de urgencia por presentar náuseas y vómitos de 1 día de evolu...

  14. Influence of intracranial hemorrhage and neonatal seizures on the neurological and psychomotor development of premature infants at Hospital de Clínicas de Porto Alegre, Brazil Influência da hemorragia intracraniana e crises neonatais sobre o desenvolvimento neurológico e psicomotor de recém-nascidos prematuros no Hospital de Clínicas de Porto Alegre, Brasil

    Directory of Open Access Journals (Sweden)

    Lygia Ohlweiler

    2003-12-01

    Full Text Available This study compared the results of neurodevelopmental examination at 6 months' corrected age of premature infants with neonatal seizures and/or intracranial hemorrhage and normal premature infants. There was a statistically significant correlation (p=0.000007 between intracranial hemorrhage and seizures in the group of 68 premature infants seen in the neurodevelopmental outpatient service at Hospital de Clínicas de Porto Alegre, Brazil. Intracranial hemorrhage was significantly associated with multiparity (p=0.02. The neurodevelopmental examination at 6 months' corrected age revealed that patients who suffered neonatal intracranial hemorrhage and/or seizures had inappropriate muscle tone, strength and reflexes, as well as delay in head control. Conclusion: we compared the results of neurodevelopmental examinations of two groups of premature infants at 6 months' corrected age. The difference in neurological development at 6 months' corrected age was statistically significant when comparison was corrected for premature infants who had neonatal seizures and periventricular hemorrhage.Este estudo comparou os resultados do exame do desenvolvimento neuropsicomotor aos seis meses de idade corrigida de lactentes prematuros com crises neonatais e/ou hemorragia intracraniana com lactentes prematuros sem estas intercorrências. Houve uma correlação estatisticamente significativa (p=0.000007 entre hemorragia intracraniana e crises neonatais no grupo de 68 lactentes prematuros vistos no ambulatório de neurodesenvolvimento do Hospital de Clínicas de Porto Alegre, Brasil. Hemorragia intracraniana foi significativamente associada com multiparidade (p=0.02. O exame do desenvolvimento neuropsicomotor aos 6 meses de idade corrigida mostrou que pacientes que sofreram hemorragia intracraniana neonatal e/ou crises neonatais tiveram tônus, forças e reflexos inapropriados, bem como atraso no controle do sustento cefálico. Conclusões: Comparamos os resultados

  15. Miopatia miotubular: estudo clinico, eletrofisiologico e histologico de um caso

    Directory of Open Access Journals (Sweden)

    José L. Alonso

    1981-12-01

    Full Text Available São apresentados os resultados dos exames clínicos, eletrofisiológicos e do estudo do ponto motor, da imunofluorescência, da histoquímica e da ultrami-croscopia da biópsia muscular de um caso de miopatia miotubular. São discutidos estes resultados em relação aos achados de 56 casos desta moléstia consignados na literatura até 1978, sendo dada enfase à etiopatogenia.

  16. A CIDADE NO JORNALISMO CULTURAL: UMA PERSPECTIVA DE PORTO ALEGRE NA COBERTURA DO DIÁRIO DO SUL (1986-1988

    Directory of Open Access Journals (Sweden)

    Everton Cardoso

    2012-06-01

    Full Text Available Este artigo discute a representação da cidade no jornalismo cultural, examinando como a editoria de cultura do jornal Diário do Sul (grupo GzM ofereceu uma perspectiva de Porto Alegre entre 1986 e 1988. O percurso analítico sintetiza boa parte dos resultados de pesquisa conduzida por meio de análise do conteúdo e técnicas de história oral temática.Ancorada na positividade, percebeu-se que a cobertura constrói a cidade como local do consumo, da novidade, da atualização e do movimento contínuo de fluxos externos. Revela a centralização geográfica do circuito, investimentos na institucionalização da cultura e na renovação da infraestrutura da capital.Na tensão entre as referências que criam pertencimento e as que expandem o território, o jornalismo representa a urbe como o centro do espetáculo, inserindo-se em um fenômeno das últimas décadas, quando as cidades se constituíram em agentes decisivos da esfera da cultura.

  17. [Trends in hospitalization for primary care-sensitive conditions and associated factors in Porto Alegre, Rio Grande do Sul, Brazil].

    Science.gov (United States)

    da Costa, Juvenal Soares Dias; Pattussi, Marcos Pascoal; Morimoto, Tissiani; de Arruda, Jocinei Santos; Bratkowski, Gabriela Rodrigues; Sopelsa, Mariani; Fritzen, Janaina Soder; do Canto, Vaneza de Andrade da Fontoura; Marques, Maximiliano Chagas

    2016-04-01

    An ecological study was conducted to analyze trends in hospitalization for primary care-sensitive conditions linking the results to the investments in health and coverage of the Family Health Strategy in Porto Alegre, between 1998 and 2012. The causes of hospitalization for primary care-sensitive conditions were based on the national list provided by the Ministry of Health. The data were obtained from the Hospital Information System of the Unified Health System (SUS). Standardized rates were created and investments increased by 27%, though investments in primary care increased by 83%. The expansion of coverage by the Family Health Strategy was almost fourfold, though it remained below the recommended values. There was no change in the trend of hospitalization for primary care-sensitive conditions. The analysis did not make it possible to establish if patients who were hospitalized for primary care-sensitive conditions had access to the Family Health Strategy or not, suggesting the need to incorporate data of place of origin in the information system. Studies using the Hospital Information System contribute to its enhancement, fomenting the assessment, management and design of health policies.

  18. A flexible coupling scheme for Monte Carlo and thermal-hydraulics codes

    Energy Technology Data Exchange (ETDEWEB)

    Hoogenboom, J. Eduard, E-mail: J.E.Hoogenboom@tudelft.nl [Delft University of Technology (Netherlands); Ivanov, Aleksandar; Sanchez, Victor, E-mail: Aleksandar.Ivanov@kit.edu, E-mail: Victor.Sanchez@kit.edu [Karlsruhe Institute of Technology, Institute of Neutron Physics and Reactor Technology, Eggenstein-Leopoldshafen (Germany); Diop, Cheikh, E-mail: Cheikh.Diop@cea.fr [CEA/DEN/DANS/DM2S/SERMA, Commissariat a l' Energie Atomique, Gif-sur-Yvette (France)

    2011-07-01

    A coupling scheme between a Monte Carlo code and a thermal-hydraulics code is being developed within the European NURISP project for comprehensive and validated reactor analysis. The scheme is flexible as it allows different Monte Carlo codes and different thermal-hydraulics codes to be used. At present the MCNP and TRIPOLI4 Monte Carlo codes can be used and the FLICA4 and SubChanFlow thermal-hydraulics codes. For all these codes only an original executable is necessary. A Python script drives the iterations between Monte Carlo and thermal-hydraulics calculations. It also calls a conversion program to merge a master input file for the Monte Carlo code with the appropriate temperature and coolant density data from the thermal-hydraulics calculation. Likewise it calls another conversion program to merge a master input file for the thermal-hydraulics code with the power distribution data from the Monte Carlo calculation. Special attention is given to the neutron cross section data for the various required temperatures in the Monte Carlo calculation. Results are shown for an infinite lattice of PWR fuel pin cells and a 3 x 3 fuel BWR pin cell cluster. Various possibilities for further improvement and optimization of the coupling system are discussed. (author)

  19. A flexible coupling scheme for Monte Carlo and thermal-hydraulics codes

    International Nuclear Information System (INIS)

    Hoogenboom, J. Eduard; Ivanov, Aleksandar; Sanchez, Victor; Diop, Cheikh

    2011-01-01

    A coupling scheme between a Monte Carlo code and a thermal-hydraulics code is being developed within the European NURISP project for comprehensive and validated reactor analysis. The scheme is flexible as it allows different Monte Carlo codes and different thermal-hydraulics codes to be used. At present the MCNP and TRIPOLI4 Monte Carlo codes can be used and the FLICA4 and SubChanFlow thermal-hydraulics codes. For all these codes only an original executable is necessary. A Python script drives the iterations between Monte Carlo and thermal-hydraulics calculations. It also calls a conversion program to merge a master input file for the Monte Carlo code with the appropriate temperature and coolant density data from the thermal-hydraulics calculation. Likewise it calls another conversion program to merge a master input file for the thermal-hydraulics code with the power distribution data from the Monte Carlo calculation. Special attention is given to the neutron cross section data for the various required temperatures in the Monte Carlo calculation. Results are shown for an infinite lattice of PWR fuel pin cells and a 3 x 3 fuel BWR pin cell cluster. Various possibilities for further improvement and optimization of the coupling system are discussed. (author)

  20. Isotopic depletion with Monte Carlo

    International Nuclear Information System (INIS)

    Martin, W.R.; Rathkopf, J.A.

    1996-06-01

    This work considers a method to deplete isotopes during a time- dependent Monte Carlo simulation of an evolving system. The method is based on explicitly combining a conventional estimator for the scalar flux with the analytical solutions to the isotopic depletion equations. There are no auxiliary calculations; the method is an integral part of the Monte Carlo calculation. The method eliminates negative densities and reduces the variance in the estimates for the isotope densities, compared to existing methods. Moreover, existing methods are shown to be special cases of the general method described in this work, as they can be derived by combining a high variance estimator for the scalar flux with a low-order approximation to the analytical solution to the depletion equation