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Sample records for se brazil analises

  1. Concentrations of Se, Ba, Zn and Mn in Brazil nuts

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    Armelin, Maria José A.; Maihara, Vera A.; Cardoso, Paulo S.; Saiki, Mitiko [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Cozollino, Silvia M.F., E-mail: marmelin@ipen.br, E-mail: vmaihara@ipen.br, E-mail: msaiki@ipen.br, E-mail: pscsilva@ipen.br, E-mail: smfcozzo@usp.br [Universidade de São Paulo (USP), SP (Brazil). Faculdade de Ciências Farmacêuticas

    2017-07-01

    The concentrations of Se, Ba, Zn and Mn were determined in samples of Brazil nuts collected in two ways: a) in a production farm predominantly for export and, b) in various points of sale from different regions of Brazil. Instrumental neutron activation analysis was the analytical technique used in this study. Results indicate that the concentrations of Se and Ba varied greatly among the Brazil nut samples analyzed. This large variability may be related to the soil characteristics from which the nuts were produced. An inverse correlation was observed between the concentrations of Se and Ba. On the other hand, the concentrations of Zn and Mn did not show significant differences among these samples. (author)

  2. Analysis of a hydrogen-solar system for the Brazil; Analise de um sistema hidrogenio-solar para o Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Samuel N.M. de; Mendes, Nathan; Lima, Lutero C. de [Uberlandia Univ., MG (Brazil). Dept. de Engenharia Mecanica; Veziroglu, T.N. [Miami Univ., Coral Gables, FL (United States)

    1995-07-01

    In this article it is proposed the study of technical aspects and costs of the implantation of a system of solar hydrogen utilization in Brazil. Forecasts are made of the total photovoltaic cell, water demand for the production of electrolytic hydrogen, investments, benefits and comparative price between fossil fuel and hydrogen. (author)

  3. Bioenergy in Brazil and Europe: a comparative analysis; Bioenergia no Brasil e na Europa: uma analise comparativa

    Energy Technology Data Exchange (ETDEWEB)

    Castro, Nivalde Jose de [Universidade Federal do Rio de Janeiro (IE/UFRJ), RJ (Brazil). Inst. de Economia], e-mail: nivalde@ie.ufrj.br; Dantas, Guilherme de Azevedo [Universidade Federal do Rio de Janeiro (GESEL/UFRJ), RJ (Brazil). Grupo de Estudos do Setor Eletrico], e-mail: guilhermecrvg@yahoo.com.br

    2008-07-01

    A higher application of bioenergy is one of the existing ways to adequate the necessity of an expansion in the energy supply with the mitigation of global warming. The consumption of biofuel in the transport sector is the most usual and important use of biomass, however, bioenergy may also have a relevant contribution to the world electrical matrix. A comparative analysis shows that Brazil has consolidate the usage of biofuel while Europe is having problems to accomplish the biofuels levels established in the European Union guidelines. However, some european countries are developing their bioelectrical generation potential in a much more efficient way than Brazil. Therefore , brazilian policies to support bioelectricity should observe the successful instruments applied in Europe. (author)

  4. Analysis of public policies for new renewable energy in Brazil; Analise de politicas publicas para novas energias renovaveis no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Furtado, M.C.; Fadigas, E.A.F.A.; Baitelo, R.L. [Universidade de Sao Paulo (USP), SP (Brazil). Escola Politecnica

    2010-07-01

    Renewable energy have a prominent place among the solutions to combat global warming, but its potential is still untapped in Brazil. Without long-term policies with clear rules, you can not attract entrepreneurs and ensure stability of operation of this market. The main tools of government to promote renewable energy generation have not been efficient - the Incentive Program for Alternative Sources of Energy (Proinfa) was implemented in 2002 but put into operation just over two thirds of the energy proposal. The low success rate in repeated auctions focused on renewable energy. The objective of this paper is to discuss the prospects of the expansion of electricity generation by renewable energies in Brazil and some fundamental requirements for effective structuring of this market in the country. This argument is supported by the analysis of the proposed mechanisms used internationally and in the country, under a new law for renewable energies. As a practical demonstration of the analysis, we present a simulation of conditions of formation of the final price of renewable resources in different conditions as varied market rate of return, cost of transmission, and sale of carbon credits.

  5. Analysis of records of external occupational dose records in Brazil; Analise dos registros de dose ocupacional externa no Brasil

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    Mauricio, Claudia L.P.; Silva, Herica L.R. da, E-mail: claudia@ird.gov.br, E-mail: herica@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ),Rio de Janeiro, RJ (Brazil); Silva, Claudio Ribeiro da, E-mail: claudio@cnen.gov.br [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil)

    2014-07-01

    Brazil, a continental country, with actually more than 150,000 workers under individual monitoring for ionizing radiation, has implemented in 1987 a centralized system for storage of external occupational dose. This database has been improved over the years and is now a web-based information system called Brazilian External Occupational Dose Management Database System - GDOSE. This paper presents an overview of the Brazilian external occupational dose over the years. The estimated annual average effective dose shows a decrease from 2.4 mSv in 1987 to about 0.6 mSv, having been a marked reduction from 1987 to 1990. Analyzing by type of controlled practice, one sees that the medical and dental radiology is the area with the largest number of users of individual monitors (70%); followed by education practices (8%) and the industrial radiography (7%). Additionally to photon whole body monitoring; neutron monitors are used in maintenance (36%), reactor (30%) and education (27%); and extremity monitors, in education (27%), nuclear medicine (22%) and radiology (19%). In terms of collective dose, the highest values are also found in conventional radiology, but the highest average dose values are those of interventional radiology. Nuclear medicine, R and D and radiotherapy also have average annual effective dose higher than 1 mSv. However, there is some very high dose values registered in GDOSE that give false information. This should be better analyzed in the future. Annual doses above 500 are certainly not realistic. (author)

  6. In situ isotopic analyses of U and Pb in zircon by remotely operated SHRIMP II, and Hf by LA-ICP-MS: an example of dating and genetic evolution of zircon by {sup 176}Hf/{sup 177}Hf from the Ita Quarry in the Atuba Complex, SE, Brazil; Analises in situ de U e Pb em zircao por SRIMP II por controle remoto e de Hf por LA-ICP-MS: um exemplo de datacao e da evolucao genetica de zircao atraves da razao {sup 176}Hf/{sup 177} em amostra da Pedreira Ita no Complexo Atuba, SE, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Sato, K.; Siga Junior, Oswaldo; McReath, Ian; Sproesser, Walter; Basei, Miguel Angelo Stipp [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Geociencias. Centro de Pesquisas Geocronologicas], e-mail: keisato@usp.br, e-mail: osigajr@usp.br, e-mail: ianmcr@usp.br, e-mail: wmspres@usp.br, e-mail: baseimas@usp.br; Silva, Josiane Aline da [Universidade de Sao Paulo (USP), SP (Brazil). Programa de Pos-graduacao em Geoquimica e Geotectonica; Dunyi, Liu [Institute of Geology, Beijing (China); Iizuka, Takafumi; Rino, Shuji; Hirata, Takafumi [Tokyo Institute of Technology, Tokyo (Japan)

    2009-10-15

    Remotely-operated SHRIMP dating of zircon is an interesting alternative for dating of zircon crystals. Although it does not represent any technical progress of the geochronological method using the U-Pb system in zircon it is a very useful and cheap facility. The procedure was first used for mass spectrometric analyses involving two international laboratories in Sao Paulo, Brazil and Beijing, China. It was applied to samples of three gneiss-migmatitic rocks from the Ita quarry in the Atuba Complex (located between the Luis Alves and the Apiai Domain) to test previous controversial hypotheses about its evolution. The presence of important archaean and paleo proterozoic components in the complex is confirmed by analyses of zircon found in probably neo proterozoic leucosomes. Diorite intrusion also occurred during the neo proterozoic, associated with the 0.6Ga continental collisions involved in the assembly of Gondwana. The determination of Hf isotope ratios by LA-ICP/MS represents a new option for checking the relative importance of mantle ({epsilon}{sub Hf} > 0) and crustal contributions (({epsilon}{sub Hf} < 0) during the growth of the zircon crystals. While the archaean component in the complex was derived from the mantle ({epsilon}{sub Hf} + 1.5 to + 8.7) the paleo proterozoic component had a crustal contribution ({epsilon}{sub Hf} - 9.1 to -10.1). (author)

  7. Energetic analysis versus exergetic analysis of charcoal blast furnace of V and M do Brazil; Analise energetica versus analise exergetica do alto forno a carvao vegetal da V and M do Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Lis Nunes; Silva, Ricardo Junqueira [V e M do BRASIL S.A., Belo Horizonte, MG (Brazil); Franca, Geraldo Augusto Campolina; Lemos, Ricardo Jose Fernandes [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil)

    2011-12-21

    The energetic analysis is the traditional method of quantification of the energy used in an operation involving physical and chemical processes and transference and/or conversion of energy. Generally used through energetic balance that is based on the first law of thermodynamics to evaluate the energetic efficiency. This balance is used to determine and reduce the loss of energy. Although an energy balance does not provide information about the energy degradation or resources during a process and do not quantify the potential or quality of the energy fluxes and material that flow in a system and come out as products and losses. The exergetic analysis goes beyond the limitations of the first law of thermodynamics. The concept of exergy is based in the second law of thermodynamics. The objective of this paper is to compare the more suitable analysis method aiming the identification of the energy economy potentials and consequently the reduction in the emissions of the greenhouse gases, through the balance of mass, energy and exergy of the blast furnace 1 of V and M do Brazil. (author)

  8. Comparative analysis of the generation sources equilibrium tariff in Brazil; Analise comparativa da tarifa de equilibrio das fontes de geracao no Brasil

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    Oliveira, Ricardo Gorini; Tolmasquim, Mauricio Tiomno [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia (COPPE). Programa de Planejamento Energetico]. E-mail: gorini@ppe.ufrj.br

    2006-07-01

    An economical and financial analysis of the main alternatives for electric power generation in Brazil, as follows: hydroelectric, natural gas, coal and nuclear power plants besides the small hydroelectric, the sugar cane bagasse biomass, and the wind power.

  9. Determination of selenium in biological material by instrumental neutron activation analysis using {sup 77m} Se radioisotope; Determinacao de selenio em materiais biologicos por analise por ativacao com neutrons instrumental usando o radioisotopo {sup 77m} Se

    Energy Technology Data Exchange (ETDEWEB)

    Vasconcellos, Maria B.A.; Moreira, Edson G.; Catharino, Marilia G.M.; Tokura, Alexandra M.; Saiki, Mitiko [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil). Supervisao de Radioquimica

    1999-11-01

    Selenium is an essential element in human diet due to its relation to the protection against carcinogenic substances, heart disease, hypertension, sexual performance enhancement, and others. In this work Se concentration in samples of the biological certificate reference materials Human Hair BCR-CRM 397, Spiked Human Hair IAEA-085, Unspiked Human Hair IAEA-086; Dogfish Liver DOLT-1 and Dogfish Muscle DORM-1 were determined in order to improve the instrumental neutron activation analysis, INAA, method using {sup 77m} Se radioisotope. The application of this method allows the analysis of a large number of samples of samples with reduced time of experimental and cost. the best results were obtained with the reactor operating at 5 MW and time of irradiation between 10 and 20 s. In these experimental conditions the relative standard deviation and error were generally lower than 10%. (author) 5 refs., 7 tabs.

  10. Electric power consumption and GDP in Brazil: a cointegration analysis; Consumo de energia eletrica e PIB no Brasil: uma analise de cointegracao

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Bruno Goncalves da; Parente, Virginia [Universidade de Sao Paulo (IEE/USP), SP (Brazil). Inst. de Eletrotecnica e Energia], emails: brunosilva@usp.br, vparente@iee.usp.br

    2010-07-01

    There are many studies aimed at estimating the long-run relationship between GDP and energy. The main objective of this paper is to analyze this relationship for Brazil, taking as a starting point to other studies already done with cointegration methodology to other countries of the world, in order to determine how the Brazilian domestic product is related to energy consumption country.

  11. Ethanol from sugar cane in Brazil: analysis and discussion; O etanol de cana-de-acucar no Brasil: analise e discussoes

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    Moraes, Albemerc Moura de; Polasse, Belisa Athayde; Simao, Nathalia Machado [Universidade Federal do ABC, Santo Andre, SP (Brazil). Curso de Pos-graduacao Stricto Sensu em Energia

    2008-07-01

    Nowadays, the intense investment in renewable energy reflects the search for alternative solutions to politician-economic and socio-environment originated by energy' source predominance of fossil origin in the global energy matrix. In this case, the ethanol from Brazil's sugar cane is more and more writing your history on the International bio fuels market. That's mainly due to Brazil's commercial maturity, agricultural, technological achieved in last decades. However, some negatives socio environments, such as deforestation, fires and precarious job conditions, among others are a discredit for a probable future hegemony of Brazilian ethanol. In this way, it is important to set guide-line discussions about this topic, analyzing and overcoming problems that avoid a better sustainable posture. (author)

  12. Critical analysis of the PETROBRAS monopoly end - particularities of the Bahia state, Brazil; Uma analise critica do fim do monopolio da PETROBRAS - particularidades para o Estado da Bahia

    Energy Technology Data Exchange (ETDEWEB)

    Cerqueira, Alexandre B.; Ribeiro, Bradson F. [Bahia Univ., Salvador, BA (Brazil). Dept. de Engenharia Quimica. Curso de Especializacao em Engenharia do Gas Natural; Rocha, Georges S. [Centro Federal de Tecnologia da Bahia, Salvador, BA (Brazil)

    2005-07-01

    The Agencia Nacional de Petroleo - ANP - created in 1997 by the petroleum law has the role of regulating oil and natural gas industry activities in Brazil inciting the power self-sufficiency. The petroleum law states the end of petroleum exploration monopoly in Brazil performed by PETROBRAS. Between 1998 and 2004 ANP carried out six bid rounds in brazilian sedimentary basins offered to national and foreign companies. The exploratory activities in Bahia are resulting in commercial discoveries and positive impact to local economy. The petrochemical industry expects the startup of Manati field operation to supply repressed demand of natural gas as fuel and raw material. This article analyzes the legal and institutional processes and economics performances of these activities in Bahia's state. (author)

  13. Characterization of a clay from Vitoria da Conquista, Bahia, Brazil, by thermal analysis; Caracterizacao de uma argila de Vitoria da Conquista, BA, por analise termica

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, O.M.; Zandonadi, A.R.; Martins, M.V. Surmani; Carrio, J.A.G.; Munhoz Junior, A.H. [Universidade Presbiteriana Mackenzie, Sao Paulo, SP (Brazil)

    2010-07-01

    Kaolinitic clays are vastly used in ceramic industry. Light coloration burned clays are very useful in the coatings production because of their aesthetic. In this work clay material from Vitoria da Conquista (south-west Bahia, Brazil) was characterized by various techniques. Differential Scanning Calorimetry (DSC) shows a kaolinite characteristic curve with an endothermic peak at 492 deg C, which corresponds to the kaolinite - metakaolinite transformation. Transformation alpha to beta quartz is characterized by a 573 deg C peak. The samples were also characterized by water absorption and x rays powder diffraction. The 1100 deg C burned samples were tested by rupture tension with acceptable results. (author)

  14. Analysis of the natural gas market in Fortaleza metropolitan region (Brazil); Analise do mercado de gas natural na regiao metropolitana de Fortaleza

    Energy Technology Data Exchange (ETDEWEB)

    Barroso, Carlos Andre M.; Rabelo, Clarice A.C.; Santana, Lana L.P.; Sucupira, Marcos L.L. [Universidade Federal do Ceara (UFC), Fortaleza, CE (Brazil)

    2004-07-01

    Natural gas has become one of the most important energy sources, as we can observe in most countries' energy sector, where its presence is very significant. In Brazil, natural gas corresponds to 7,5% of all energy Also available, and the government has plans to increase this number to 12% until 2010. However, in order to reach this goal, it is important to understand how market works, evaluating all the aspects that have some influence on it. This paper goal is to analyze the natural gas market in Fortaleza metropolitan region, emphasizing the industrial sector, the biggest consumer in Ceara State. The main aspects are characterized here, like professionals qualification in the area, service quality, from equipment and maintenance suppliers until gas distributors, legal aspects, and other factors that are also relevant to a possible future expansion of different natural gas market segments (industry, residence, commerce and transport). (author)

  15. Decomposition analysis of the variations in household electricity consumption in Brazil; Analise de decomposicao das variacoes no consumo de energia eletrica no setor residencial brasileiro

    Energy Technology Data Exchange (ETDEWEB)

    Achao, Carla da Costa Lopes

    2009-09-15

    Introduced at the end of the 1970s to study the impacts of structural changes on electricity consumption by industry, index decomposition analysis techniques have been extended to various other areas to help in the formulation of energy policies, notably in developed countries. However, few authors have applied these techniques to study the evolution of energy consumption in developing countries. In Brazil, the few available studies have focused only on the industrial sector. In this thesis, we apply the decomposition technique called the logarithmic mean Divisia index (LMDI) to electricity consumption of the Brazilian residential sector, to explain its evolution in terms of the activity, structure and intensity affects, over the period from 1980 to 2007. The results obtained in a preliminary analysis point out, in a general way, that the observed variables in electricity consumption in the Brazilian residential sector are, mainly, the product of the increase in the number of consumers and the changes in the specific consumption of electricity in households. In a further analysis, carried out when the structure is given through consumers participation in consumption categories (Low Income and Conventional) taken from an overall point of view, although the intensity and activity effects may be considered the main explaining factors in consumption variation, the structure effect stands out in the period immediately after the 2001 rationing, as a reflect of the changes in the inclusion criteria in the Low Income category, specifically in the Northeast. (author)

  16. Geostatistical and stratigraphic analysis of deltaic reservoirs from the Reconcavo Basin, Brazil; Analise estratigrafica e geoestatistica de reservatorios deltaicos da Bacia do Reconcavo (BA)

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Carlos Moreira

    1997-07-01

    This study presents the characterization of the external geometry of deltaic oil reservoirs, including the description of their areal distribution using geo statistic tools, such as variography and kriging. A high-resolution stratigraphic study was developed over a 25 km{sup 2} area, by using data from 276 closely-spaced wells of an oil-producer field from the Reconcavo Basin, northeastern Brazil. The studied succession records the progressive lacustrine transgression of a deltaic environment. Core data and stratigraphic cross sections suggest that the oil reservoirs are mostly amalgamated, delta-front lobes, and subordinately, crevasse deposits. Some important geometrical elements were recognized by the detailed variographic analysis developed for each stratigraphic unit (zone). The average width for the groups of deltaic lobes of one zone was measured from the variographic feature informally named as hole effect. This procedure was not possible for the other zones due to the intense lateral amalgamation of sandstones, indicated by many variographic nested structures. Net sand krigged maps for the main zones suggest a NNW-SSE orientation for the deltaic lobes, as also their common amalgamation and compensation arrangements. High-resolution stratigraphic analyses should include a more regional characterization of the depositional system that comprises the studied succession. On the other hand, geostatistical studies should be developed only after the recognition of the depositional processes acting in the study area and the geological meaning of the variable to be treated, including its spatial variability scales as a function of sand body thickness, orientation and amalgamation. (author)

  17. Study of heavy metal concentration and partitioning in the Estrela River: implications for the pollution in Guanabara Bay - SE Brazil

    Directory of Open Access Journals (Sweden)

    Carlos M. A. Rangel

    2011-09-01

    Full Text Available In this study, the geochemical analysis of ten sediment samples collected along the fluvial system of the Estrela River, which flows into the northern portion of Guanabara Bay, shows the presence of anthropogenic impacts in this area. Concentrations of Fe, Mn, Zn, Cu, Pb, Cr and Ni obtained were slightly higher, when compared with values found innatural environments. The particle size and organic matter content in most of the analyzed stations showed featuresnot conducive to the accumulation of pollutants due to the low organic matter content and the strong presence ofsand fraction. There was also the fractionation of heavy metals in sediments and it was found the prominence ofresidual and reducible phase, besides the significant occurrence of organic fractions in some analyzed stations. Thesefactors, thus, highlight the potential risks of contamination, where the metals associated with the organic phase canbecome bioavailable in processes of dissolution, provided by physico-chemical changes that can occur in this aquaticenvironment.Neste estudo, analises geoquímicas de dez amostras de sedimentos coletadas ao longo do sistema fluvial do rio Estrela, que deságua na porção norte da Baía de Guanabara, evidenciam a presença de impactos antropogênicos nesta área. As concentrações de Fe, Mn, Zn, Cu, Pb, Cr e Ni obtidas foram ligeiramente elevadas, quando comparados com valores encontrados em ambientes naturais. A granulometria e o teor de matéria orgânica na maioria dos pontos analisados mostraram características não favoráveis à acumulação destes poluentes devido à baixa concentração de matéria orgânica e à forte presença de fração areia. Realizou-se também o fracionamento dos metais pesados nos sedimentos e constatou-se a preeminência da fase residual e redutível, além da ocorrência significativa da fração orgânica em alguns pontos analisados. Estes fatores evidenciam, portanto, riscos potenciais de contamina

  18. Evaluation of time, dose and kVp in dental diagnoses in Acaraju, SE, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, N.C; Souza, D.N. [Universidade Federal de Sergipe, Aracaju, SE (Brazil). Dept. de Fisica; Melo, M.F.B [Universidade Federal de Sergipe, Aracaju, SE (Brazil). Hospital Universitario. Dept. de Odontologia

    2007-07-01

    The institutions must accomplish periodic quality controls in dental radiology in order to improve the image quality and security of patients and professionals. In Brazil, in the last years, have been established parameters to test the quality of diagnostic radiology equipment used in odontology and medicine, moreover the criteria that need to taken account the evaluation of conformity these machines. This work had as objective to analyse the x rays beams parameters of devices used in the dentistry in the Aracaju city, SE. To this, some institutions were visited in order to evaluate which of the requirements from Portaria No. 453 were being obeyed. The tests were performed in order to analyse the peak voltage (kVp), dose, rate dose and the time of exposition in ten different devices installed in dentist's office including the devices of the Sergipe Federal University. The measures were carried out aiming to simulate the expositions that occur in the patient skin surface during the examinations. As parameters were used the exposition times of the intraoral pre-molar regions, to male patients were used 0.7 s and female 0.6 s. The distance from equipment focus and detector device was constant and determinate by the support of film. (author)

  19. Removal efficiency of 75Se, 51Cr and 60Co from tidal water by mangrove sediments from Sepetiba Bay (SE Brazil)

    International Nuclear Information System (INIS)

    Suzuki, K.N.; Lopes, R.T.; Machado, E.C.; Machado, W.; Osso, J.A.Jr.

    2014-01-01

    Mangrove sediment cores sampled from Sepetiba Bay (SE Brazil) were covered with tidal water spiked with 75 Se, 51 Cr and 60 Co to evaluate the removal efficiency of these radiotracers by underlying sediments. Variable time-evolution trends were observed along 115 h experiments, with significant differences between removal efficiencies of all radiotracers observed only after 70 h ( 51 Cr > 60 Co > 75 Se). After an event of 60 Co release back to overlying water, there was a general trend of lower 60 Co removal than observed for other radiotracers during the period from 20 to 54 h. After this event, alternated periods of higher 60 Co and higher 75 Se removal trends were observed, attributed to behavioural differences expected for such anionic and cationic radiotracers. While 75 Se and 51 Cr showed uniform time-evolution curves, as typically found in the literature for most radiotracers, 60 Co removal rates presented oscillations, probably due to sensitivity to changes in redox conditions within underlying sediments. Results evidenced the role of mangrove sediments as trace element sinks, which have implications for coastal water quality and for possible uses of such sediments in wastewater treatment systems. (author)

  20. Reproductive system of Eriocnema fulva Naudin (Melastomataceae), an endemic species of Minas Gerais state, SE Brazil.

    Science.gov (United States)

    Andrade, P M; Forni-Martins, E R; Martins, F R

    2007-05-01

    Eriocnema fulva Naudin is a perennial herb, endemic to Minas Gerais state, SE Brazil, found on humid, shaded rocky riverbanks in montane semideciduous seasonal forests. The species is threatened, but information regarding its biology is still lacking, although such information is fundamental to any management plan. We aimed to evaluate the reproductive system of Eriocnema fulva in the Jambreiro Forest (19 degrees 58'-59' S and 43 degrees 55'-52' W, 800-1100 m altitude), municipality of Nova Lima, by experiments carried out in 1997 and 1998. The flowers are white, and flowering is of the steady state type, occurring once a year from November to December. Anthers are poricidal, and pollen is the only resource for visitors. The chromosome number is n = 17 during meiosis. The species is self-compatible, but does not produce fruits by spontaneous self-pollination or agamospermy; it requires pollen vectors and buzz pollination in order to produce fruits. Cross-pollination is the main reproductive strategy of E. fulva, and is accentuated by the small number of flowers (one or two in each plant) opened per day. Although the population studied was shaded by forest canopy, the seeds needed light to germinate. Germination ratio was lower in germination cabinet on filter paper (14% after 30 days) than in greenhouse on soil brought from the forest (47% after 25 days). Although the fruit is a capsule and the seeds are small, dispersion (anemochory or hydrochory) does not seem to occur at long distance, as it is the case for other Melastomataceae species with similar syndrome.

  1. Reproductive system of Eriocnema fulva Naudin (Melastomataceae, an endemic species of Minas Gerais state, SE Brazil

    Directory of Open Access Journals (Sweden)

    PM. Andrade

    Full Text Available Eriocnema fulva Naudin is a perennial herb, endemic to Minas Gerais state, SE Brazil, found on humid, shaded rocky riverbanks in montane semideciduous seasonal forests. The species is threatened, but information regarding its biology is still lacking, although such information is fundamental to any management plan. We aimed to evaluate the reproductive system of Eriocnema fulva in the Jambreiro Forest (19° 58'-59' S and 43° 55'-52' W, 800-1100 m altitude, municipality of Nova Lima, by experiments carried out in 1997 and 1998. The flowers are white, and flowering is of the steady state type, occurring once a year from November to December. Anthers are poricidal, and pollen is the only resource for visitors. The chromosome number is n = 17 during meiosis. The species is self-compatible, but does not produce fruits by spontaneous self-pollination or agamospermy; it requires pollen vectors and buzz pollination in order to produce fruits. Cross-pollination is the main reproductive strategy of E. fulva, and is accentuated by the small number of flowers (one or two in each plant opened per day. Although the population studied was shaded by forest canopy, the seeds needed light to germinate. Germination ratio was lower in germination cabinet on filter paper (14% after 30 days than in greenhouse on soil brought from the forest (47% after 25 days. Although the fruit is a capsule and the seeds are small, dispersion (anemochory or hydrochory does not seem to occur at long distance, as it is the case for other Melastomataceae species with similar syndrome.

  2. Evaluation of As, Se and Zn in octopus samples in different points of sales of the distribution chain in Brazil

    International Nuclear Information System (INIS)

    Marildes Josefina Lemos Neto; Elizabeth de Souza Nascimento; Mariza Landgraf; Vera Akiko Maihara; Silva, P.S.C.

    2014-01-01

    Shellfish such as squid and octopus, class Cephalopoda, has high commercial value in restaurants and for export. As, Se and Zn concentrations were determined in 117 octopus acquired in different points of the distribution chain in 4 coastal cities of Sao Paulo state (Guaruja, Santos, Sao Vicente and Praia Grande)-Brazil. The methodology for elemental determination was Instrumental Neutron Activation Analysis (INAA). The element concentration in the octopus samples (wet weight) range from: 0.184 to 35.4 mg kg -1 for As, 0.203 to 2.26 mg kg -1 for Se and 4.73 to 37.4 mg kg -1 for Zn. Arsenic and Se levels were above the limit for fish established by Brazilian legislation, while Zn concentrations were in accordance with literature values. (author)

  3. NEOTECTONICS, RIVER CAPTURE AND LANDSCAPE EVOLUTION IN THE HIGHLANDS OF SE BRAZIL

    Directory of Open Access Journals (Sweden)

    Chrystiann Lavarini

    2016-01-01

    Full Text Available El Sinclinal Moeda, ubicado en las tierras altas del Cuadrilátero Ferrífero (sureste de Brasil, presenta características de inversión de relieve y reorganización de drenaje. En este trabajo, las cuencas del Rio do Peixe y Ribeirão Mata Porcos fueron analizados. Se llevaron a cabo análisis morfológico y morfométrico por medio de SIG. Los resultados indican que el Ribeirão Mata Porcos ha sido capturado primero, permitiendo el avance de la onda de incisión que denudó la cuenca y rebajó el nivel de base. En una última fase de las capturas, se han producido la reversión de algunos canales de drenaje y la generación de codos fluviales. A lo largo de estos hechos ocurrieron la migración preferente de canales fluviales para la dirección este, el pirateamento de las aguas del subsuelo y la decapitación de parte de la cuenca del Rio do Peixe. Basándose en estos resultados, se cree que los eventos responsables por la evolución del Sinclinal Moeda durante el Cuaternario estaban relacionados, sobretodo a las capturas fluviales (sensu strictu, diversion y beheading controlado por causas neotectónicas y litoestructurales.

  4. Early and late cretaceous magmatism from Sao Sebastiao island (SE-Brazil): geochemistry and petrology

    International Nuclear Information System (INIS)

    Bellieni, G.; Cavazzini, G.; Montes-Lauar, C.R.; Melfi, A.J.; Pacca, I.G.; De Min, A.; Piccirillo, E.M.

    1990-01-01

    The Sao Sebastiao island (236 km 2 ), located along the coast of the Sao Paulo State (Southern Brazil), is characterized by precambrian granitic affected by the Brasiliano tectonic-metamorphic cycle. This crystalline basement is intruded by Early Cretaceous (EC) sub alkaline basic and acid dykes, as well as by Late Cretaceous (LC) alkaline stocks (syenites) and dykes (basanite to phonolite). Geochemical, Sr-isotopic and mineral chemistry data point out that: EC-dykes reveal a basic-acid bimodal character, similar to that of the 'coeval' Parana basin flood volcanics; the acid dykes correspond, in composition, to the acid volcanics of the northern Parana basin: the EC-dykes can represent the eastern extension of the inland Santos-Rio de Janeiro dyke swarm, and LC alkaline stocks and dykes constitute distinct groups, characterized by different Sr-isotope initial ratios (syenites: av. 0.7052 and basanites + tephrites = av. 0.7045), which indicate that they are related to different time-integrated mantle source materials. (author)

  5. Proterozoic evolution of part of the Embu Complex, eastern São Paulo state, SE Brazil

    Science.gov (United States)

    Vinagre da Costa, Rodrigo; Trouw, Rudolph Allard Johannes; Mendes, Julio Cezar; Geraldes, Mauro; Távora, Arthur; Nepomuceno, Felipe; de Araújo Junior, Edson Barros

    2017-11-01

    This paper presents detrital zircon ages obtained in rocks of the Embu Complex, southeastern São Paulo State, Brazil. The Embu Complex encompasses a Paleoproterozoic basement represented by migmatitic hornblende and biotite orthogneisses covered by (kyanite)-(sillimanite)-(garnet) bearing biotite-muscovite schists and paragneisses with decametric intercalations of quartzites and calcsilicate rocks. In the studied area this metasedimentary sequence is intruded by the porphyritic Serra do Quebra Cangalhagranite. Through field and microstructural studies, four ductile deformational phases wereidentified. Metamorphic events related to the Brasiliano Orogeny that affected the studied rocks were dominantly under medium temperature and pressure conditions, from greenschist to middle amphibolite facies. Detrital zircon crystals from a ∼10 m thick quartzite layer were analyzed by LA-ICP-MS resulting in a wide range of ages between 2100 and 600 Ma that fall mainly in four groups: the first group between 2.1 and 1.6 Ga, with apex at 1.7 Ga; two less expressive Mesoproterozoic groups with values between 1.6 and 1.2 Ga; and a fourth group with values between 1.2 and 0.6 Ga. Considering the geochronological data, the sedimentation of the basin began after 852 ± 40 Ma (the youngest igneous grain) and finished before ∼786 Ma (metamorphic rim). The age of the intrusive Serra do Quebra Cangalha granite (∼680 Ma) is consistent with this minimum age. The opening of the basin could be related to the break-up of Rodinia, which resulted in several small continents, among them the Paranapanema and São Francisco paleocontinents. Comparing these data with similar provenance data from the Apiaí terrane, itseems probable that the Embu Complex was physically connected with it during most of their evolution.

  6. Mercury speciation in fish of the Cabo Frio upwelling region, SE-Brazil

    Directory of Open Access Journals (Sweden)

    Carlos Alberto da Silva

    2011-09-01

    Full Text Available Mercury distribution in the oceans is controlled by complex biogeochemical cycles, resulting in retention of trace amounts of this metal in marine biota. The impact of upwelling processes in this metal behavior has been overlooked. Data from literature are insufficient to evaluate the risks associated with the presence of mercury in the fish collected in upwelling areas and its consumers. Therefore, the aim of the present work was to perform a study of mercury speciation in four fish species belonging to different trophic levels from Cabo Frio-Brazil upwelling region. The total mercury content vary of 53 ng g-1 (Sardinella brasiliensis -sardine to 1215 ng g-1 (Cynoscion striatus -striped weakfish and, with exception of the planktivorous fish, methylmercury levels reaches circa 90% of total mercury concentration.A distribuição de Mercúrio nos oceanos é controlada por um complexo ciclo biogeoquímico, resultando na retenção de pequenas quantidades na biota marinha. O impacto dos processos de ressurgência costeira no comportamento desse metal tem sido negligenciado. Dados da literatura são insuficientes para elucidar o risco associado com a presença de mercúrio em peixes capturados em áreas de ressurgência e seus consumidores. Portanto o objetivo do presente trabalho foi realizar um estudo de especiação de mercúrio em quatro espécies de peixes pertencentes a diferentes níveis tróficos da região de ressurgência de Cabo Frio-Brasil. O conteúdo total de mercúrio variou de 53 ng g-1 (Sardinella brasiliensis -sardinha to 1215 ng g-1 (Cynoscion striatus -pescada e, com exceção da espécie planctivora, os níveis de metilmercúrio atingem cerca de 90% da concentração total de mercúrio.

  7. Norite and charnockites from the Venda Nova Pluton, SE Brazil: Intensive parameters and some petrogenetic constraints

    Directory of Open Access Journals (Sweden)

    Julio Cezar Mendes

    2012-11-01

    Full Text Available The Venda Nova Pluton (VNP is a zoned ring structure emplaced in the southern portion of the Neoproterozoic Araçuai Belt, in Espírito Santo, Brazil. It is a slightly westward tilted cylinder-like intrusion, with an almost circular horizontal section. In the center of this structure, an off-centered gabbro-noritic core, surrounded by syeno-monzonitic rocks, intrudes an outer ring of charnockites and norite. These envelop the syeno-monzonitic and gabbro-noritic center, as a narrow discontinuous belt. While, in the core intrusion, mingling and mixing processes are widespread and well documented in the literature, in the outer ring, the norite and charnockite layers show predominantly homogeneous and isotropic internal structures. Nevertheless, smaller interaction zones between charnockites and norite denote a comparatively more restricted mingling process. The norite is a fine-grained rock with hypidiomorphic granular to intergranular texture. The charnockites are medium-grained and made up of: (a orthopyroxene-tonalite, (b orthopyroxene-quartz-diorite, and (c orthopyroxene-granodiorite with hypidiomorphic granular to porphyritic textures. In all lithotypes both ortho- and clinopyroxene are replaced by hornblende and biotite. Two contrasting compositional sequences have been recognized, based on whole rock geochemistry: (1 a basic, with tholeiitic affinities (norite and, (2 an intermediate, medium-K calc-alkaline, comprising the charnockites. Estimated crystallization temperatures, which have been calculated from micro-probe analysis of pyroxenes, range from 915 ± 25 °C to 960 ± 50 °C. Re-equilibration temperature (ilmenite-magnetite calibration is around 600 ± 50 °C. This indicates oxygen fugacities four order of magnitude below the FMQ-buffer and a reduced environment. Coeval pressure conditions estimated from the Al-content in hornblende range from 5.5 ± 0.6 kbar. Data obtained for the norite point toward an evolution from

  8. Characterization of clays used in the red ceramics industry at Itabaianinha-SE (Brazil)

    International Nuclear Information System (INIS)

    Azevedo, T.F.; Andrade, C.E.C. de; Santos, C.R. dos; Barreto, L.S.

    2011-01-01

    The Local Cluster of red ceramic industry in the state of Sergipe comprises Itabaianinha-SE, Itabaiana and Baixo Sao Francisco municipalities (Propria and Santana do Sao Francisco). The city of Itabaianinha concentrates a large number of ceramics and potteries producing ceramic bricks and tiles. The study was conducted in a red ceramic industry of the region. The focus of this work was an incremental innovation in the process and product. It was analyzed three types of clays used for manufacturing of ceramic bricks (barro preto, diamante and jardim). The samples were prepared by pressing and heat treated between 600 ° C - 1100 C °. The samples characterization was by thermogravimetry, X-ray diffraction and physical tests (water absorption, linear retraction and three points flection). The clays are composed mainly of kaolinite, illite-muscovite and quartz. The results showed that the Barro Preto clay showed better results in retraction, absorption and mechanical strain. (author)

  9. Incidence of musculoskeletal injuries in professional soccer players from Aracaju/SE-Brazil.

    Directory of Open Access Journals (Sweden)

    João Bourbon de Albuquerque II

    2017-12-01

    Full Text Available Abstract AIMS To verify the incidence of injuries in professional soccer athletes in Aracaju-SE and to identify associated factors. METHODS This was an observational, prospective cohort study involving 39 healthy athletes, followed for seven months and evaluated on four occasions (start on preseason and two evaluations with three months of interval between each through data collection sheet and orthopedic physical examination. RESULTS Participants were 20 athletes from Club Sportivo Sergipe and 19 from Associação Desportiva Confiança, with mean age of 26 years (CI 95%: 25.2-28 years, and mean career time of 9.6 years (CI 95%: 7.9-11.3 years. The 13 (2.4 / 1000 hours diagnosed injuries occurred almost exclusively in the lower limbs and thigh muscle stretch was the most common injury. Injuries were mostly mild to moderate (69%. There was no significant association with any of the variables analyzed. CONCLUSION Low incidence of injuries was observed in this study. Predominantly, lesions occurred on non-rainy days and were due to trauma. Lower limbs were the most affected location and thigh stretch was the most common injury.

  10. Uma analise da utilização de serviços de saúde por sistema de financiamento: Brasil 1998 -2008 An analysis of use of the health services by financing system: Brazil 1998-2008

    Directory of Open Access Journals (Sweden)

    Silvia Marta Porto

    2011-09-01

    Full Text Available Este artigo analisa, a partir de microdados de 1998, 2003 e 2008 da PNAD/IBGE, a utilização de serviços de saúde sob a perspectiva de seu financiamento Entre os principais resultados da análise, destacam-se os seguintes: 1 o SUS continua financiando a maioria dos atendimentos e das internações realizados no País, participação que aumentou significativamente entre 1998 e 2003, mantendo-se praticamente estável entre 2003 e 2008; 2 a participação do SUS no financiamento da utilização dos serviços de saúde foi preponderante em todas as regiões, sendo maior nas regiões Norte e Nordeste com situações sanitárias e sócio-econômicas mais precárias; 3 o SUS é o principal financiador dos dois níveis extremos de complexidade da atenção à saúde: o de atenção básica e o da alta complexidade; 4 apesar do aumento verificado nas taxas de utilização do SUS, para atendimentos e internações, ainda persistem grandes inequidades no uso de serviços de saúde entre a população atendida pelo SUS e a população beneficiaria de planos e seguros de saúde privados; 5 foi observado um aumento na utilização de serviços do SUS por parte dessa população com asseguramento privado.This article analyzes the use of health services from the perspective of financing based on PNAD/IBGE micro-data related to 1998, 2003 and 2008. Among the main results, the following can be highlighted: 1 The Unified Health System (SUS continues to be the major financing agent of most consultations and hospitalizations in Brazil; its participation increased significantly between 1998 and 2003 and remained almost stable between 2003 and 2008; 2 SUS participation in financing the use of the health services has been predominant in all Brazilian regions, especially in the North and North-East, which feature the most precarious socio-economic and health conditions; 3 SUS is the major financing agent of the two extreme levels of complexity of health care

  11. Determination of mercury in reference materials and head hair samples of human populations from Serra do Navio, Amapa State, Brazil, by neutron activation analysis method; Analise de mercurio em materiais de referencia e em amostras de cabelo de populacoes da regiao da Serra do Navio (Estado do Amapa) pelo metodo de analise por ativacao de neutrons

    Energy Technology Data Exchange (ETDEWEB)

    Catharino, Marilia G.M.; Vasconcellos, Marina B.A.; Paletti, Gerson; Saiki, Mitiko; Favaro, Debora I.T. [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil). Supervisao de Radioquimica

    1996-07-01

    Mercury analysis of human head hair has been of much concern in connection with mercury contamination deriving from gold exploration activities. Neutron activation analysis has been applied as a highly sensitive and accurate method. Total mercury is being determined in hair samples from populations from the regions of Serra do Navio, Tartarugalzinho and Vila Nova, in the Amapa State, Brazil. The reference materials IAEA - 085 and IAEA - 086 were also analysed. The range of total mercury analysis is o,21 - 18,84 ppm. These results show a possible contamination, comparing to a control group analysed. (author)

  12. The role of gravitational collapse in controlling the evolution of crestal fault systems (Espirito Santo Basin, SE Brazil) - Discussion

    Science.gov (United States)

    Jackson, Christopher A.-L.; Rotevatn, Atle; Tvedt, Anette B. M.; Bell, Rebecca E.

    2017-05-01

    Ze and Alves (2016) use 3D seismic reflection data to describe the geometry and throw characteristics of a salt-related normal fault population in the Espirito Santo Basin, offshore SE Brazil. As part of their analysis they test two competing fault growth models; (i) the isolated model, which states that faults grow via a sympathetic increase in their displacement and length, an inference seemingly consistent with displacement-length (D-L) scaling relationships (e.g. Watterson, 1986; Walsh and Watterson, 1988; Dawers et al., 1993; Cartwright et al., 1995; Dawers and Anders, 1995); and (ii) the constant-length model, which states that faults grow via establishment of their near-final length relatively early in their slip history, prior to the accumulation of significant displacement (Fig. 1) (e.g. Morewood and Roberts (1999); Morley, 2002; Walsh et al., 2002, 2003; Childs et al., 2003; Nicol et al., 2005; Schlagenhauf et al., 2008; Giba et al., 2012; Jackson and Rotevatn, 2013). Because they make very different predictions regarding the tectono-stratigraphic evolution and earthquake hazard potential of rifts, critically testing these models is important for structural geologists, geomorphologists and stratigraphers, amongst many others. However, in our view, such critical testing has rarely been undertaken, thus the study of Ze and Alves (2016) is most welcome.

  13. Corridors of crestal and radial faults linking salt diapirs in the Espírito Santo Basin, SE Brazil

    Science.gov (United States)

    Mattos, Nathalia H.; Alves, Tiago M.

    2018-03-01

    This work uses high-quality 3D seismic data to assess the geometry of fault families around salt diapirs in SE Brazil (Espírito Santo Basin). It aims at evaluating the timings of fault growth, and suggests the generation of corridors for fluid migration linking discrete salt diapirs. Three salt diapirs, one salt ridge, and five fault families were identified based on their geometry and relative locations. Displacement-length (D-x) plots, Throw-depth (T-z) data and structural maps indicate that faults consist of multiple segments that were reactivated by dip-linkage following a preferential NE-SW direction. This style of reactivation and linkage is distinct from other sectors of the Espírito Santo Basin where the preferential mode of reactivation is by upwards vertical propagation. Reactivation of faults above a Mid-Eocene unconformity is also scarce in the study area. Conversely, two halokinetic episodes dated as Cretaceous and Paleogene are interpreted below a Mid-Eocene unconformity. This work is important as it recognises the juxtaposition of permeable strata across faults as marking the generation of fault corridors linking adjacent salt structures. In such a setting, fault modelling shows that fluid will migrate towards the shallower salt structures along the fault corridors first identified in this work.

  14. The new courses of ethanol production in Brazil: an analysis from learning curves; Os novos rumos da producao de alcool combustivel no Brasil: uma analise a partir de curvas de aprendizagem

    Energy Technology Data Exchange (ETDEWEB)

    Pereira Junior, Amaro Olimpio [Empresa de Pesquisa Energetica (EPE), Brasilia, DF (Brazil); Pereira, Andre Santos [Centre de Recherche sur Environement et Developement (CIRED), Paris (France); Mendonca, Marco Aurelio [Instituto de Pesquisa Economica Aplicada (IPEA), Brasilia, DF (Brazil); Costa, Ricardo Cunha da [Universidade Federal do Rio de Janeiro (PPE/COPPE/UFRJ), RJ (Brazil). Coordenacao do Programa de Pos-Graduacao em Engenharia. Programa de Pos-Graduacao em Planejamento Energetico

    2008-07-01

    PROALCOOL is known internationally as the most successful biofuel promotion program. Prior analysis of the effectiveness of such a program is fundamental to formulation of public policy, not only in the area of energy, but in all sectors of the economy. The article applies learning curve methodology to evaluate the ethanol market in Brazil in order to give an idea about the effort, in terms of investments, required for its advancement. (author)

  15. Impact of the flex-fuel vehicle on the prices formation and regulation in Brazil; Analise do impacto dos veiculos flex-fuel na formacao e regulacao de precos de combustiveis veiculares no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Buscarini, Rodolfo Jose Galvao [Universidade Estadual de Campinas (IE/UNICAMP), SP (Brazil). Inst. de Economia; Cesca, Igor Gimenes [Universidade Estadual de Campinas (DEP/FEM/UNICAMP), SP (Brazil). Fac. de Engenharia Mecanica. Dept. de Engenharia de Petroleo

    2012-07-01

    The main fuels for vehicles in Brazil are the gasoline type C - which is a mixture of gasoline, resulting from the fractional distillation of oil and anhydrous ethanol - and hydrated ethanol. For this importance, has been created an institutional framework to guide and regulate the activities of the fuel sector, initially for gasoline, hydrated ethanol was contemplated by such device in 2011. Since 2003, there has been manufactured in Brazil the flex-fuel vehicles. With this, the possibility of activation of an additional factor for the regulation of vehicle fuel prices, increasing consumer power to define which of the fuels could be used as the disposition of their prices. One of the effects of growth flex-fuel sales has been increased production and investment in ethanol (especially sugar cane) as a suitable alternative to the. The hope was that the formation of fuel prices was less dependent on their cost of production and distribution and more influenced by a pressure of consumer demand. However, the increase in the sales of the flex-fuel vehicle in Brazil in the last years was not the determining factor in the price of fuels, as it was expected. The explanation of this is on external factors to the automotive industry, linked to the structures of the production chain of oil and ethanol, especially the question of the great increase in international prices of oil and hydrated ethanol in the international market in recent years. (author)

  16. Vertical distribution of minor and trace elements by neutron activation instrumental analysis in estuary sediments of Santos e Sao Vicente, Sao Paulo State, Brazil; Distribuicao vertical de elementos menores e tracos por analise por ativacao neutronica instrumental nos sedimentos do estuario de Santos e Sao Vicente, Sao Paulo, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Paulo S.C. da; Mazzili, Barbara P. [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil). Dept. de Radioprotecao Ambiental; Favaro, Deborah I.T. [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil). Lab. de Analise por Ativacao

    2002-07-01

    Santos and Sao Vicente estuaries, located in Sao Paulo State, Southeast Brazil, comprises one of the most important industrial regions of the country. Such activities contribute for the enhancement of pollutants in the environment. The impact arising form the transport and accumulation of chemical substances, e.g. heavy metals, as well as the mechanisms of these processes are not fully understood. In this sense, much attention has been paid for the effluent discharges enriched by chemical elements in the near shore environment. The elements As, Ba, Br, Co, Cr, Cs, Hf, Rb, Sb, Se, Ta and Zr were analyzed in 27 sediment sample from Santos and Sao Vicente Estuary and from Santos Bay, aiming to determine the horizontal distribution of these elements. The obtained results was analyzed by means of Pearson correlation coefficient and cluster analyses. The utilization of a normalizer element is also discussed. (author)

  17. Environmental law in Brazil: analysis of environmental licensing of wind power plants in permanently preserved areas; Direito ambiental no Brasil: analise do licenciamento ambiental de usinas eolicas de preservacao permante

    Energy Technology Data Exchange (ETDEWEB)

    Amaral, Cristiano Abijaode; Pedreira, Adriana Coli; Bleil, Julia Rechia [Associacao Brasileira dos Investidores em Autoproducao de Energia (ABIAPE), Brasilia, DF (Brazil)], E-mails: cristiano@abiape.com.br, adriana@abiape.com.br, julia@abiape.com.br

    2011-04-15

    The Brazilian electric energy matrix is mostly renewable. According to the Generation Information Base (BIG) of the Brazilian Electricity Regulatory Agency (ANEEL), hydroelectricity is responsible for 67.31% of the country's energy. The additional generation comes mostly from fossil fuels, whose use is questioned when it comes to environmental quality and climate change. Despite its abundance, hydroelectric power generation has physical, socioeconomic and environmental limitations. Thus, it is essential to develop alternative technologies, providing security in the supply of electric energy and the maintenance of a clean matrix. Among the alternative technologies available, wind power is the one that has been gaining prominence, domestically and internationally speaking. In the last auction of renewable sources held in August 2010 in Brazil, the energy produced by the plants of sugarcane bagasse (biomass) was traded at an average of R$ 144.20 MWh; wind energy, which was the cheapest, was traded at R$ 130.86, and the energy from small hydropower plants (PCH), at R$ 141.93 MWh. The wind power plants accounted for 70% of the auction, which resulted in a plan for increasing its installed capacity by fivefold, by the year 2013. Brazil has great potential to be explored (estimated 143,000 MW), yet despite being appealing, wind energy still face some challenges. One of them is due to the fact that most potential areas for such energy are found in permanently preservation areas and areas considered national assets, subject to special protection measures. This study aims to investigate whether the regulatory, legal and environmental issues are considered an obstacle to an effective inclusion of wind power generation in Brazil. The study examines the process of environmental licensing of wind power plants, especially those established in permanently preservation areas (APPs) and Coastal Areas. The research methodology consisted of normative framework, judicial decisions

  18. Identification and analysis of local and regional impacts from the introduction of biodiesel production in the state of Piaui, Brazil; Identificacao e analise dos impactos locais e regionais da introducao da producao de biodiesel no estado do Piaui

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Omar Inacio Benedetti; Rathmann, Regis [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-Graduacao de Engenharia (COPPE). Programa de Planejamento Energetico; Padula, Antonio Domingos [Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil)

    2008-07-01

    The recent moves towards the insertion of biofuels in the energy matrix of a number of countries are opening new prospects for agricultural production and for agroindustrial chains. This study aims at understanding the mechanisms taking place within a production system geared towards biodiesel production. The emergence of this new productive base raises new research issues: in what circumstances are the structuring, organization and implementation of these biodiesel productive chains taking place in Brazil? What are the effects of biodiesel production on local economies? Hence, the central objective of this study is the development and validation of an analytical structure capable of characterizing the biodiesel productive arrangements and identifying their economic and social impacts at the regions where they are installed. A preliminary analysis identified that a biodiesel productive arrangement is emerging in the State of Piaui, Northeastern Brazil, Our theoretical basis comprises elements from the regional economy, biorefineries, local production arrangements and innovation. For the analyses, we employed the methods of input-output, local quotient and shift-share. It can be said that a new social-economic dynamics is taking place in Piaui; however, the company needs to assess its interaction with local institutions as well as its castor bean production strategies. (author)

  19. Analysis of the technical potential for carbon capture and geological sequestration in the oil sector of Brazil; Analise do potencial tecnico do sequestro geologico de CO{sub 2} no setor petroleo no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Isabella Vaz Leal da

    2009-02-15

    This thesis focuses on the technologies related to CO{sub 2} capture and geological storage. The main objective of this study is to perform an analysis of the technical potential of geological sequestration of CO{sub 2} in the oil and gas sector in Brazil. Climate changes are directly related to emissions of greenhouse gases. Mainly, are related to increased carbon dioxide emissions due to the use of fossil fuels. To mitigate climate changes there are technologies that have the purpose of promoting the reduction of emissions of greenhouse gases such as the Geological Sequestration of CO{sub 2}. Thus, the study presents a description of the stages of the geological sequestration of CO{sub 2} and the state of the art of the technology in Brazil and worldwide. In addition, is presented the capacity for storage of the Brazilian sedimentary basins. Finally, this thesis analyzes the application of the described technologies in two stationary sources of great importance: refineries and oil and gas production fields. (author)

  20. Sedimentary constraints on the development of a narrow deep strait (São Sebastião Channel, SE Brazil)

    Science.gov (United States)

    Alcántara-Carrió, Javier; Sasaki, Dalton Kei; Mahiques, Michel Michaelovitch de; Taborda, Rui; de Souza, Luiz Antonio Pereira

    2017-10-01

    The São Sebastião Channel (SSC), which separates São Sebastião Island from the continent, is a deep elongated strait on the inner shelf of the São Paulo Bight (SE Brazil). The aim of this study is to explain why it is presently sediment starved, instead of forming a tombolo. Wave data were obtained from both a WW3 model database and buoy records, and wave propagation patterns from the SWAN numerical model. Grain size trend analysis of 579 surficial sediment samples from the strait and the surrounding region served to estimate the residual transport directions. Bedload sediment transport was computed considering in situ currents and bottom sediment grain size. Moreover, six seismic profiles and one gravity core were obtained in the strait in order to evaluate the hickness of the sedimentary deposits. The geometry of the SSC (X/B=0.3, where B is the breakwater or island diameter and X is its cross-shore distance to the mainland) predicts that a tombolo should be formed, and wave patterns confirm that it is a zone sheltered from both S and NE waves. Previous studies have shown that the hydrodynamics of the SSC is controlled by wind-driven currents, which are more intense in the eastern and central sectors of the strait. The western sector is currently covered by sandy mud, whereas very coarse to fine sand prevails in the deeper eastern sector. Sediment patterns show a trend to deposition of fine sediment in the western sector of the SSC and two main depocentres located at the northern limit of the study area and at the southern mouth of the strait. Sandy mud in the western sector forms a 40-m-thick deposit close to the outer limit of Araçá Bay, whereas the remainder of the SSC is covered by a very thin layer of sandy sediments. Dominance of mud in the depositional western sector suggests low availability of sand in the area. Therefore, despite the geometry and wave patterns of the SSC favouring the formation of a tombolo, the dominance of wind-driven currents

  1. Geochemical behavior and dissolved species control in acid sand pit lakes, Sepetiba sedimentary basin, Rio de Janeiro, SE - Brazil

    Science.gov (United States)

    Marques, Eduardo D.; Sella, Sílvia M.; Bidone, Edison D.; Silva-Filho, Emmanoel V.

    2010-12-01

    This work shows the influence of pluvial waters on dissolved components and mineral equilibrium of four sand pit lakes, located in the Sepetiba sedimentary basin, SE Brazil. The sand mining activities promote sediment oxidation, lowering pH and increasing SO 4 contents. The relatively high acidity of these waters, similar to ore pit lakes environment and associated acid mine drainage, increases weathering rate, especially of silicate minerals, which produces high Al concentrations, the limiting factor for fish aquaculture. During the dry season, basic cations (Ca, Mg, K and Na), SiO 2 and Al show their higher values due to evapoconcentration and pH are buffered. In the beginning of the wet season, the dilution factor by rainwater increases SO 4 and decreases pH values. The aluminum monomeric forms (Al(OH) 2+ and Al(OH) 2+), the most toxic species for aquatic organisms, occur during the dry season, while AlSO 4+ species predominate during the wet season. Gibbsite, allophane, alunite and jurbanite are the reactive mineral phases indicated by PHREEQC modeling. During the dry season, hydroxialuminosilicate allophane is the main phase in equilibrium with the solution, while the sulphate salts alunite and jurbanite predominate in the rainy season due to the increasing of SO 4 values. Gibbsite is also in equilibrium with sand pit lakes waters, pointing out that hydrolysis reaction is a constant process in the system. Comparing to SiO 2, sulphate is the main Al retriever in the pit waters because the most samples (alunite and jurbanite) are in equilibrium with the solution in both seasons. This Al hydrochemical control allied to some precaution, like pH correction and fertilization of these waters, allows the conditions for fishpond culture. Equilibrium of the majority samples with kaolinite (Ca, Mg, Na diagrams) and primary minerals (K diagram) points to moderate weathering rate in sand pit sediments, which cannot be considered for the whole basin due to the anomalous

  2. Efficiency analysis on the use of internal lining in the Bolivia-Brazil gas pipeline; Analise da eficiencia do uso de revestimento interno na tubulacao do gasoduto Bolivia-Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Frisoli, Caetano [TRANSPETRO - PETROBRAS Transporte S.A., Rio de Janeiro, RJ (Brazil); Silva, Marcos Jose Moraes da [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Bittencourt, Maria Angelica Santos; Coelho Junior, Robson Teixeira [TBG - Transportadora Brasileira Gasoduto Bolivia Brasil S.A., Rio de Janeiro, RJ (Brazil)

    2003-07-01

    The internal lining in gas pipelines aims the reduction of roughness and, consequently, the friction factor, therefore resulting in a reduction of pressure drop in natural gas flowing. During Bolivia-Brazil gas pipeline basic design, the cost benefit of internal coating was analyzed, in terms of friction factor reduction and distances between Compressor Stations. It was observed an increase of transport capacity and reduction of compressors' power, thus leading to its utilization. Since the pipeline is already in operation, using a SCADA system with Advanced Functions, a comparison between the current real friction factor in the pipeline with that theoretical values used during the design phase becomes possible. Through this comparison, it is possible to evaluate internal coating's efficiency, quantifying its real benefit for gas pipelines. (author)

  3. Challenges for environmental risk assessment application in offshore E and P activities in Brazil; Desafios para a aplicacao de analise de risco ecologico nas atividades de E e P offshore no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Cardoso, Cassia de Oliveira; Chame, Luciana Moreira [DNV Brasil, Rio de Janeiro, RJ (Brazil); Cantarino, Anderson Americo Alves [BP Brasil, SP (Brazil)

    2004-07-01

    Although the Brazilian Legislation does not clearly specify the requirements and the need to elaborate and apply the Environmental Risk Analysis, the Term of Reference to submit studies to Environmental Entities for E and P offshore activities has required the presentation of an {sup E}nvironment Risk Analysis{sup .} Nevertheless, the interactions or possible effects of these accidents as well as possible chronic discharges are not focused. The Environment Risk Analysis programs used world wide for offshore petroleum activities are very sophisticated and need intense research, specially by universities to be adequate and applicable in Brazil. The studies briefly described in this work, when developed may give the characteristics of Brazilian offshore, important information on the potential of the environment impact of the E and P activities, reducing significantly today's subjectivity on evaluation of impacts and environmental risks. (author)

  4. Evaluation of the mineralogical characterization of several smectite clay deposits of the state of Paraiba, Brazil using statistical analysis of variance; Avaliacao da caracterizacao mineralogica de diversos depositos de argilas esmectiticas do estado da Paraiba utilizando analise estatistica de variancia

    Energy Technology Data Exchange (ETDEWEB)

    Gama, A.J.A.; Menezes, R.R.; Neves, G.A.; Brito, A.L.F. de, E-mail: agama@reitoria.ufcg.edu.br [Universidade Federal de Campina Grande (UFCG), PB (Brazil)

    2015-07-01

    Currently over 80% of industrialized bentonite clay produced in Brazil in sodium form for use in various industrial applications come from the deposits in Boa Vista - PB. Recently they were discovered new bentonite deposits situated in the municipalities of Cubati - PB, Drawn Stone - PB, Sossego - PB, and last in olive groves - PB, requiring systematic studies to develop all its industrial potential. Therefore, this study aimed to evaluate chemical characterization several deposits of smectite clays from various regions of the state of Paraíba through the analysis of statistical variance. Chemical analysis form determined by fluorescence x-ray (EDX). Then analyzes were carried out of variance statistics and Tukey test using the statistical soft MINITAB® 17.0. The results showed that the chemical composition of bentonite clay of new deposits showed different amounts of silica, aluminum, magnesium and calcium in relation clays in Boa Vista, and clays imported. (author)

  5. In situ measurements of benthic primary production, respiration and nutrient fluxes in a hypersaline coastal lagoon of SE Brazil

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    Bastiaan Knoppers

    1996-01-01

    Full Text Available Bentbic oxygen and nutrient ftuxes were measured in a section of the hypersaline carbonate-rich coastal lagoon of Araruama, SE-Brazil. In situ incubations of the sediment surface (Zm - 1.5 were performed at one station with light/dark chambers during september 1993 (early spring period and april 1995 (earlyautumn period. The carbonate..rich aediments were covered by 1-3 mm thick microalgal mats, dominated by the cyanobaeteria Phormidium sp, Oscillatoria sp, and Lyngbya sp. Benthic net primary production rates were 15.4 ± 0.7 mmolC/m²/d in early spring and 33.8 ± 8.8 mmolC/m²/d in early autumn, total community respiration rates attained 35.3 ± 7.2 and 65.7 ± 16.9 mmolC/m²/d, and pelagic primary production rates 1.7 ± 0.7 and 4.0 ± 1.4 mmolC/m²/d, respectively. Total community metabolism was thus heterauophic and mainly driven by benthic metabolism. The benthic release rates af ammonia were 0.65 ± 0.32 mmolC/m²/day in early spring and 0.58± 0.42mmoVm ldaym early autumn, butwere near to negligible for orthophosphate. Pelagic primaryproduction was limited byphosphorous, in part, by the preferential release of étmmonia over orthophosphate from the sediment-water interface. The benthic primary production and nutrient release rates were within the range of other eury-to hypersaline carbonate-rich environments characterized by non- consolidated algat rats.Fluxos bênticos de oxigênio e nutrientes foram medidos numa seção da lagoa hipersalina e carbonática de Araruama, SE-Brasil Incubações in situ da superfície do sedimento (Zm = 1,5 foram realizadas em uma estação com câmaras claras/escuras nos meses de setembro de 1993 (início da primavera e abril de 1995 (início do outono. Os sedimentos ricos em carbonatos eram recobertos por um tapete microalgal de 1-3 mm, dominados pelas cianobactérias Phormidium sp,Oscillatoria spLyngbya sp. As taxas de produção primária yquida foram 15,4 ± 0,7 mmolC/m²/d Id no iníCIO da primavera e

  6. Analyzing natural gas distribution in Brazil through EVA (Economic Value Added); Analise economico-financeira da industria de distribuicao de gas natural brasileiro sob a otica da geracao de valor

    Energy Technology Data Exchange (ETDEWEB)

    Marques, Fernando Rodrigues; Parente, Virginia [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Eletrotecnica e Energia

    2008-07-01

    Although the Brazilian gas market has been showing steady growth and positive news regarding new discoveries, it is not immune to be questioned about its capacity of value generation, and, in particular, if the new companies, operating in distribution have generated it. Value creation, and its management, has become one of the main activities of the modern corporation in order to align the management and shareholders interests. Despite its advancements, the Brazilian NG industry can be considered at its early stages when compared to those of other countries whose industry is more traditional and mature. The process of unbundling of the gas industry, as well as of the public utilities, has become one of the icons of the Brazilian government policies since the mid 90's. Taking into account regulatory change which had only allowed in the last couple of decades the participation of private ownership into the domestic gas market, a follow up of these companies' performances is of interest. Following the concept of value generation, the present study examines the Brazilian gas distribution sector. Based on a detailed analysis of the financial statements of some of the main companies in the sector, that together represent around 68% of the total Brazilian market, this paper verifies whether the gas distribution sector have presented a positive or negative EVA{sup R}, in other words, if, during the period from 2002 to 2007, these newly companies in the gas industry have created or destroyed value in Brazil. (author)

  7. Peru and Brazil: a comparative analysis of E and P licensing models adopted by these countries; Peru e Brasil: um analise comparativa dos modelos de licitacao de E and P adotados por esses paises

    Energy Technology Data Exchange (ETDEWEB)

    Braga, Luciana P.; Ferreira, Sabrina S. [Agencia Nacional do Petroleo, Gas Natural e Biocombustiveis (ANP), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    This work presents a comparative analysis of the concession process of Oil and Gas Exploratory Blocks adopted in two countries of Latin America: Peru and Brazil, according to the rules of the Bidding Rounds occurred in 2007 (Peru's Bidding Round and 9th Bidding Round, respectively). In order to analyze the two models chosen, we considered, among others, the rules and proceedings adopted, the legal framework, the criteria used to qualify the companies, the number of blocks offered, the number of participating companies, the infra-structure of the event and the offer selection system. Through this analysis it was possible to verify the points which could be improved in each concession process model and it showed significant differences between them, despite the fact of each one is suitable to the reality of each country. It is important to highlight that the exchange of experience between agents of oil and gas sector, in this specific case Perupetro and ANP, contributes a lot to the continued improvement of bidding processes and other practices adopted. (author)

  8. Metrological control of the gas flow and analysis of mass conservation in Bolivia-Brasil gas pipeline; Controle metrologico da vazao de gas e analise da conservacao de massa no gasoduto Bolivia-Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Palhares, Julio Cesar [TBG - Transportadora Brasileira Gasoduto Bolivia-Brasil, S.A., Rio de Janeiro, RJ (Brazil); Orlando, Alcir de Faro; Frota, Mauricio Nogueira [Pontificia Univ. Catolica do Rio de Janeiro, RJ (Brazil). Curso de Pos-graduacao em Metrologia para Qualidade Industrial

    2005-07-01

    International gas pipelines reflect a integrated commerce and impose a metrological challenge for the custody transferences that indistinctly imply in significant economic impact. This work argues the complex analysis of the mass balance and expression of uncertainties of the Gasoduto Bolivia-Brasil (3.150 Km of length, 557 Km in Bolivian territory and 2.593 Km that cross Brazil of West for East), today carrying approximately 60% from its maximum capacity (30 million of cubic meters daily), operating for the Transportadora Brasileira Gasoduto Bolivia Brasil S.A., a enterprise controlled by PETROBRAS Gas S/A (GASPETRO). The TBG measuring methods always taking care of the necessities of the customers as well as being lined up with the changes of the natural gas market. In six years of existence, the TBG came along with the legislation created for regulating agency in formation and adjusted to the establishment of the contract inspector, important landmarks of the evolution of the market. This work presents the definitions that guide the metrological subjects of the TBG, making use of efficient tools in answers for each demand and searching to satisfy its proper necessities, the necessities of its customers and the new demands of the regulating agency. (author)

  9. Analysis of the physico-chemical quality Enalapril and Simvastatin drugs manipulated in magistral pharmacies from Belo Horizonte, MG, Brazil; Analise da qualidade fisico-quimica dos medicamentos Enalapril e Sinvastatina manipulados em farmacias magistrais de Belo Horizonte, MG, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Gomes, Tatiana Cristina Bomfim

    2013-07-01

    The increasing expansion of compounding pharmacy associated with several reports on variances in the quality of compounded drugs demonstrates the need for verification of quality, safety and efficacy of these products. In this work, physical and chemical analyzes were performed to evaluate the quality of some capsules manipulated enalapril and simvastatin, acquired in five pharmacies in Belo Horizonte /Brazil. Among the analyzes are pharmacopoeial tests for appearance, identification, determination of weight, content, related compounds and uniformity of dosage units, and was also performed neutron activation analysis for the determination of inorganic impurities in drugs sampled. The results showed that 60% of the samples were unsatisfactory for pharmacopoeial tests. The contents of the capsules sampled for individual testing unit dose uniformity between 0% and 136.2%. This test is important in evaluating the quality, which influences the safety and efficacy of drug treatment, since it allows you to check if the product contains the proper dosage and necessary for successful pharmacotherapy. On the other hand, underdosing can lead to reduced or absent desired therapeutic response, and overdoses can provide an undesirable effects and even toxic. The concentration of inorganic impurities was considered to be relatively small. However, no specific limits for some chemical elements in medicine hamper a better thread. In addition, further studies must be performed to assess chronic exposure to low concentrations of inorganic impurities, since drugs can be continuously used, and other sources of exposure must also be considered in order to evaluate the risk. The problems related to the quality and safety of compounded drugs are still reality in the country and reveal a serious public health problem, especially regarding the lack of uniformity between the unit doses of medications. It is suggested that the competent authorities to sanitary products, propose changes in

  10. Carbon accumulation rates recorded in the last 150years in tropical high mountain peatlands of the Atlantic Rainforest, SE - Brazil.

    Science.gov (United States)

    Lourençato, Lúcio F; Caldeira, Pedro P; Bernardes, Marcelo C; Buch, Andressa C; Teixeira, Daniel C; Silva-Filho, Emmanoel V

    2017-02-01

    Peatlands are environmental matrices that store large amounts of organic carbon (TOC) and work as records of environmental changes. Recent record of organic carbon accumulated were assessed in two Forest National Parks, Itatiaia and Serra dos Órgãos in the Southeastern of Brazil. Based on organic and inorganic characterization, the cores from peatlands presented a predominance of organic material in an advanced stage of decomposition and those soils were classified as typical Haplosaprists Histosols. The combination of favorable topographic and climatic conditions led to rapid C accumulation across coastal mountain in the tropical peatlands studied, presenting an average accumulation rate of C, in the last century, of 194gCm -2 yr -1 about 7 higher times than the rate found in boreal and subarctic peatlands, those higher values may be related to changes in the hydrological cycle occurred since 1950s. Copyright © 2016 Elsevier B.V. All rights reserved.

  11. Adoption of innovations in tourism services: A study of multiple cases in bars and restaurants of Aracaju's seafront (SE, Brazil

    Directory of Open Access Journals (Sweden)

    Éder Danilo Bezerra

    2013-04-01

    Full Text Available The present paper has as its main goal to analyze, through a multiple case study, the impact caused by the adoption of new technologies in tourism businesses, which increasingly incorporate technology to their activities. For this, we conducted semi-structured interviews with managers of four bars and restaurants of Aracaju’s seafront (Sergipe/Brazil, supported by a survey that assessed how the adoption of electronic controls by these companies affects both their customers' perceptions regarding the quality of their services, as well as their employees' perception about the technology as a working tool. In this sense, this research is based on the theory of diffusion of innovations proposed by Rogers (1995, which points out five attributes perceived in innovation that influence the individual decision to either adopt or reject an innovation. As the results and implications of the study we can highlight the attempt of bridging dichotomous concepts in innovation, emphasizing the role of technology in the service sector, and providing a reflection on the convergence between the human and technological aspects that transform concepts and ideas deeply rooted in innovation studies and tourism, and also the discussion about the extent to which there is a need for such sector to increase the presence of technology in their activities, given the different perceptions of the involved parts about the role of the technological innovation in tourism.

  12. Stratigraphical discontinuities, tropical landscape evolution and soil distribution relationships in a case study in SE-Brazil

    Directory of Open Access Journals (Sweden)

    M. Cooper

    2002-09-01

    Full Text Available On a regional summit surface in the county of Piracicaba (SP within the Peripheric Depression of São Paulo, formed of discontinued flattened tops, there is an abrupt transition between a Typic Hapludox and a Kandiudalfic Eutrudox, together with two stoneline layers. Using stratigraphical, mineralogical, and cartographic studies, this transition and the soil distribution of this surface were studied, correlating them with the different parent materials and the morphoclimatic model of landscape evolution in Southeastern Brazil. The Typic Hapludox was formed on a sandy Cenozoic deposit (Q that overlies a pellitic deposit of the Iratí formation (Pi, representing a regional erosive discordance. Westwards to the Piracicaba River, this sequence is interrupted by a diabase sill overlain by a red clayey material which gave origin to the Kandiudalfic Eutrudox. Two post-Permian depositional events were identified by the two stonelines and stratigraphical discontinuities. The first event generated the deposition of a sandy sediment in the form of levelled alveoluses on regional barriers, most of these formed by dikes and diabase sills, probably during a drier phase. The second depositional event, leading to the deposition of the red clay was probably the dissection of the previously formed pediplane during a humid climate, followed by another pedimentation process during a later, drier period.

  13. Risk analysis of cadmium intake by fish consumers in a sub-tropical coastal lagoon, Sepetiba Bay-SE, Brazil

    Directory of Open Access Journals (Sweden)

    Marco Aurélio Pereira Horta

    2011-03-01

    Full Text Available Objetivo: Estimar o risco de contaminação por cádmio (Cd através da ingestão de peixe em população consumidora de pescado, na Baía de Sepetiba-SE, Brasil. Métodos: Estimouse o risco de ingestão de cádmio para os consumidores de peixe da área de estudo. Para o controle, baseou-se no consumo de peixe pela população brasileira, tornando possível estimar a probabilidade e risco devido à ingestão de cádmio por avaliação do quociente de perigo (HQ. Resultados: O risco para a ingestão de cádmio foi 110 vezes maior do que o encontrado no controle populacional. O HQ foi de 0,11; e quando comparado com o controle da população, que está localizado ao redor da área de estudo, o risco obtido foi de 0,001. O risco aumentado pode ser refletido nas doenças renais, embora estas não tenham se mostradoassociadas à exposição ao Cd. Conclusão: Os pescadores que trabalham na Baía de Sepetiba têm um risco cerca de 110 vezes maior de contaminação por cádmio do que a população que consome peixe por 48 dias por ano (média.

  14. Um Estudo Empirico Sobre o Fim da CorregAo Monetaria Integral e sea Impacto na Analise das Demonstrag6es Contabeis: Uma Analise Setorial"

    Directory of Open Access Journals (Sweden)

    Bruno Meirelles Salotti

    2009-10-01

    Full Text Available Esse estudo avalia as consequencias de não se considerarem os efeitos da inflação nas analises das demonstrações contábeis e, além disso, se esses impactos são diferentes em cada setor da economia. A pesquisa considera apenas as empresas que divulgaram as suas demonstrações contábeis corrigidas no periodo de 1996 a 2002. Verificou-se a existência de diferença significativa entre indices calculados pela Lei Societária (sem corregAo e pela Correção Monetária Integral, tendo sido utilizado o teste de médias emparelhadas. Os resultados obtidos evidenciam que a falta de correção monetária nas demonstrações contábeis apresentadas de 1996 a 2002 pode causar distorções na análise da real condição patrimonial e financeira das empresas. Embora essas distorções não sejam igualmente percebidas em todos os setores e em todos os indices, elas podem resultar em conclusões equivocadas por parte dos usuários dessas informações.

  15. Climate controlled peat accumulation at Colônia (São Paulo, SE / Brazil) since the last interglacial

    Science.gov (United States)

    Roeser, Patricia; Ledru, Marie-Pierre; Thouveny, Nicolas; Tachikawa, Kazuyo; Rostek, Frauke; Garcia, Marta; Struck, Ulrich; Sawakuchi, André; Favier, Charly; Bard, Edouard

    2017-04-01

    The Colônia site is situated 40 km south of the mega city São Paulo, within a geomorphological structure probably formed by a meteor impact. The regional yearly rainfall pattern is under the domain of the South American Summer Monsoon, with increased summer rainfall accompanied by increasing temperatures. During the austral winter, southern frontal systems act as moisture source and relate to colder temperatures. The vegetation history from the peatland sediments had already shown noticeable changes since 125 ka (Ledru et al, 2009). The previous reconstruction is herewith complemented by investigations of the inorganic portions of the sediments. The age model of the present study bases on radiocarbon ages, luminescence ages and paleomagnetism. The detrital input (e.g. K, Ti, Si [XRF counts]) allowed the identification of phases deposited under increased water table depth, containing older carbon with respect to the stratigraphic counterparts deposited under lower water table conditions. The degree of crystallinity, as obtained from X-ray diffraction data, clearly outlines alternations between ombrotrophic peat accumulation and minerotrophic accumulation. These two deposition environments present distinct geochemical signature (from K, Rb, Si, Ti, Zr, Fe, Ca, S [high resolution XRF counts]), as supported by compositional data analysis. Inserted in the context of South American paleoclimate, the change of the peatland deposition environment towards minerotrophic conditions correlates well to time periods in which the overall region received increased moisture. Such conditions relate to changes in precipitation and seasonality regulated by the South American Summer Monsoon variability, as also observed in supra-regional paleoclimate records, e.g. speleothem records, the Cariaco Basin and concomitant increased detrital input to the continental margin at SE-Brazi as shown by marine sediments. These conditions partly overlap with time periods of colder temperatures and

  16. Mercury contents in aquatic macrophytes from two reservoirs in the Paraíba do Sul: Guandú river system, SE Brazil

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    M. M. Molisani

    Full Text Available This paper reports on a study to determine the Hg content in the five most abundant aquatic macrophyte species (Elodea densa, Sagittaria montevidensis, Salvinia auriculata, Pistia stratiotes and Eichhornia crassipes in two artificial reservoirs flooded by water diverted from the Paraíba do Sul river, SE Brazil. The potential of these species for Hg accumulation and their role in Hg transport along the river system due to macrophyte management were evaluated. Mercury concentrations were higher in free-floating than in rooted species. Roots were also richer in Hg than were leaves. Dry weight Hg concentrations in leaves and roots from all species varied from 46-246 ng.g-1 to 37-314 ng.g-1, respectively. These values are higher than those reported for uncontaminated lakes in Brazil and in other tropical areas and similar to those reported for moderately contaminated sites. Mercury concentrations can be attributed to fluvial transport from the heavily industrialized Paraíba do Sul river basin. Intensive sampling of Pistia stratiotes from two sites in the Vigário reservoir was performed to evaluate the capacity of Hg incorporation in short periods of time. The results showed a significant negative correlation between Hg content and size class of individual plants, demonstrating the importance of juveniles, fast growing plants in absorbing Hg. The foremost impact related to Hg contents in the studied area concerns the periodic removal of macrophytes for reservoir management, followed by disposal in nearby areas. This results in the mobilization of 0.52 to 1.3 Kg of Hg per year, a significant fraction of the Hg burden present in reservoir waters. Disposal of such material may result in Hg leaching to river systems, affecting the Hg transfer throughout the basin.

  17. Speciation and quantification of Hg in sediments contaminated by artisanal gold mining in the Gualaxo do Norte River, Minas Gerais, SE, Brazil.

    Science.gov (United States)

    da Penha Rhodes, Valdilene; de Lena, Jorge Carvalho; Santolin, Camila Vidal Alves; da Silva Pinto, Thais; Mendes, Louise Aparecida; Windmöller, Cláudia Carvalhinho

    2017-12-28

    The Iron Quadrangle in SE Brazil was, in the eighteenth century, one of the most important Au producing regions of Brazil. In this region, gold is produced, even today, by artisanal methods that use Hg to increase the extraction efficiency with no control of Hg release to water systems and the atmosphere. In this context, the Gualaxo do Norte River is of particular interest; its springs are located in the Doce River basin, an important Brazilian basin that supplies water for 3.5 million people. The main goal of this work was to quantify and speciate the Hg in the sediments of the Gualaxo do Norte River using a direct mercury analyzer and gas chromatography-pyrolysis-atomic fluorescence detection system. Statistical analyses consisted of principal component analysis, aiming to assess interactions among elements and species and to group the variables in factors affecting the properties of sediment. The results show that total Hg (THg) and methylmercury (CH 3 Hg + ) concentrations in samples ranged from 209 to 1207 μg kg -1 and from 0.07 to 1.00 μg kg -1 , respectively (methylation percentages from 0.01 to 0.27%). Thermal desorption analysis showed that mercury is mainly present in the oxidized form, and correlation analyses pointed to a relationship between THg and MnO, indicating that manganese can oxidize and/or adsorb Hg. Together, MO and CH 3 Hg + are important parameters in the third principal component, indicating the influence of OM on the methylation process. This first investigation on Hg methylation in this small-scale gold mining area points to the possibility of Hg bioaccumulation and to the need of better understanding the biogeochemical cycle of Hg in this area. Samples were collected in 2012, prior to the 2015 Fundão Dam disaster. The results are also a record of the characteristics of the sediment prior to that event.

  18. PERSPECTIVAS DE SUSTENTABILIDADE ECOLÓGICA DO TURISMO EM XINGÓ, SE/AL / TOURISM ECOLOGICAL SUSTAINABILITY PERSPECTIVES IN XINGÓ, SERGIPE AND ALAGOAS, BRAZIL

    Directory of Open Access Journals (Sweden)

    Cláudio Roberto Braghini

    2009-06-01

    Full Text Available RESUMO A busca da sustentabilidade em várias dimensões implica olhar para o desenvolvimento local nos territórios em que o turismo ocorre. Este estudo analisou de forma sistêmica a relação entre turismo, gastronomia local e os recursos extraídos do rio São Francisco pela pesca artesanal, na região de Xingó, Nordeste do Brasil. A área de estudo abrangeu três municípios, Poço Redondo/SE, Canindé de São Francisco/SE e Piranhas/AL. Tratou-se de uma pesquisa exploratória, descritiva, intencional e não probabilística, utilizando entrevistas com roteiro estruturado e aberto, junto aos restaurantes, pescadores artesanais e gestores públicos, visitas locais de reconhecimento, construção de mapa coletivo com pescadores e elaboração de diagramas de alças causais, visando selecionar indicadores de sustentabilidade. Os resultados indicaram o Surubim Pseudoplatystoma corruscans (Spix e Agassiz, 1829, Pitu Macrobrachium carcinus (Linnaeus, 1758 e Tubarana Salminus hilarii (Valenciennes, 1850, os pescados típicos mais vendidos, no entanto, dependem de distribuidores e de estoques externos. Observou-se que a redução do pescado na região deveu-se à barragem da UHE de Xingó e a sobrepesca. O fluxo turístico crescente tem forte influência sobre o camarão Pitu. Os indicadores ambientais selecionados apontam necessidade de sistematização de informações sobre a produção pesqueira e o consumo nos restaurantes.Palavras-chaves: Sustentabilidade; Turismo; Xingó; Rio São Francisco; CaatingaABSTRACTThe carrying support and the development of the local tourism involve different looks on its dimensions in the area where it occurs. This study examined in a systematic way the sustainability of tourism in the Northeast - Brazil, region of Xingó: the resources tourist and local gastronomy. The study area covers three districts: Poço Redondo and Canindé do São Francisco at Sergipe and in the state of Alagoas at Piranhas. This research

  19. SE PREVENINDO?

    Directory of Open Access Journals (Sweden)

    Ana Débora Assis Moura

    2010-01-01

    Full Text Available Este estudio tuvo como objetivo verificar el comportamiento de las prostitutas en relación a la prevención de enfermedades de transmisión sexual y del Síndrome de Inmunodeficiencia Adquirida-SIDA, así como investigar cómo se previenen de esas enfermedades. Se trata de una investigación exploratoria, con enfoque cualitativo, llevada a cabo en la Asociación de las Prostitutas en Ceará, Brazil, en septiembre de 2008, a través de una encuesta con 25 prostitutas. El análisis de los datos se hizo según el análisis de contenido, después de ser agrupados en cuatro categorías: conocimiento sobre las enfermedades de transmisión sexual/SIDA; convivencia con la(s enfermedad(es; prevención de la enfermedad de transmisión sexual/SIDA; y el uso de drogas. Se concluyó que las prostitutas no usan preservativos en todas las relaciones sexuales, por lo tanto, las enfermedades de transmisión sexual representan una realidad; la desinformación sobre la(s enfermedad(es es notable; el consumo de drogas lícitas e ilícitas es frecuente entre ellas, factor que las expone a situaciones más vulnerables con relación al VIH/SIDA.

  20. Searching for native tree species and respective potential biomarkers for future assessment of pollution effects on the highly diverse Atlantic Forest in SE-Brazil.

    Science.gov (United States)

    Domingos, Marisa; Bulbovas, Patricia; Camargo, Carla Z S; Aguiar-Silva, Cristiane; Brandão, Solange E; Dafré-Martinelli, Marcelle; Dias, Ana Paula L; Engela, Marcela R G S; Gagliano, Janayne; Moura, Barbara B; Alves, Edenise S; Rinaldi, Mirian C S; Gomes, Eduardo P C; Furlan, Claudia M; Figueiredo, Ana Maria G

    2015-07-01

    This study summarizes the first effort to search for bioindicator tree species and respective potential biomarkers for future assessment of potential mixed pollution effects on the highly diverse Atlantic Forest in SE-Brazil. Leaves of the three most abundant species inventoried in a phytosociological survey (Croton floribundus, Piptadenia gonoacantha and Astronium graveolens) were collected in four forest remnants during winter and summer (2012). Their potential bioindicator attributes were highlighted using a screening of morphological, chemical and biochemical markers. The leaf surface structure and/or epicuticular wax composition pointed the accumulator properties of C. floribundus and P. gonoacantha. C. floribundus is a candidate for assessing potential accumulation of Cu, Cd, Mn, Ni, S and Zn. P. gonoacantha is a candidate to monitor polycyclic aromatic hydrocarbons. Increased levels of secondary metabolites and decreased antioxidant capacity in leaves of A. graveolens may support its value as a bioindicator for oxidative pollutants by visible dark stipplings. Copyright © 2015 Elsevier Ltd. All rights reserved.

  1. n Analise van die gemeente as deel van hierdie proses

    African Journals Online (AJOL)

    phase of this subject is the analysis of the situation in the local church. The purpose of the analysis is to syste matically ... planned carefully. This study gives attention to a plan ned situation-analysis of the local church. 1. ...... 6.1.2.5 Die dinkskrum en 'swot'-analise. 'n Dinkskrum is 'n tegniek waar 'n groep soveel as moontlik ...

  2. Biogeografia de Philodendron seção Calostigma (Schott Pfeiffer (Araceae no Brasil Biogeography of Philodendron section Calostigma (Schott Pfeiffer (Araceae in Brazil

    Directory of Open Access Journals (Sweden)

    Cassia Monica Sakuragui

    2001-05-01

    Full Text Available Philodendron é um gênero com distribuição geográfica exclusivamente neotropical. Até o momento são reconhecidas para o gênero cerca de 500 espécies distribuídas em três subgêneros: Philodendron, Meconostigma e Pteromischum. A seção Calostigma pertence ao subgênero Philodendron, o maior dos três subgêneros, sendo representada no Brasil por 26 espécies distribuídas por todo o território nacional. O estudo de padrões de distribuição geográfica destas espécies foi feito com base no estudo de materiais de herbários nacionais e internacionais bem como no estudo das espécies no campo. Como resultado, foram encontrados três padrões de distribuição geográfica: espécies de ampla distribuição, espécies de distribuição restrita e espécies de distribuição endêmica de um local ou de uma localidade. 48% das espécies estudadas foram consideradas dentro deste último padrão. Foram reconhecidos dois centros de diversidade genética para o grupo: um na região Sudeste em área de Mata Atlântica e outro na Bacia AmazônicaPhilodendron is an exclusively neotropical genus with about 500 species distributed in three subgenera: Philodendron, Meconostigma e Pteromischum. The section Calostigma belongs to the subgenus Philodendron, the largest and most diverse group among the three. The section is represented in Brazil by 26 species distributed throughout the country. The study of the geographic distribution was based on herbaria material and field work reports. Three patterns of geographic distribution were found: wide distributed species, restrictly distributed species and endemic species. Forty-eight percent of the studied species belonged to the latter pattern. Two centers of diversity were recognised for the group: one in the Atlantic Coastal Forest, Eastern Brazil and the another in the Amazon Basin

  3. Anthropogenic influences in a lagoonal environment: a multiproxy approach at the valo grande mouth, Cananéia-Iguape system (SE Brazil

    Directory of Open Access Journals (Sweden)

    Michel Michaelovitch de Mahiques

    2009-12-01

    Full Text Available The Cananéia-Iguape system, SE Brazil, consists of a complex of lagoonal channels, located in a United Nations Educational, Scientific and Cultural Organization (UNESCO Biosphere Reserve. Nevertheless, important environmental changes have occurred in approximately the last 150 yrs due to the opening of an artificial channel, the Valo Grande, connecting the Ribeira de Iguape River to the lagoonal system. Our objective is to assess the historical record of the uppermost layers of the sedimentary column of the lagoonal system in order to determine the history of environmental changes caused by the opening of the artificial channel. In this sense, an integrated geochemical-faunal approach is used. The environmental changes led significant modifications in salinity, in changes of the depositional patterns of sediments and foraminiferal assemblages (including periods of defaunation, and, more drastically, in the input of heavy metals to the coastal environment. The concentrations Pb in the core analyzed here were up to two times higher than the values measured in contaminated sediments from the Santos estuary, the most industrialized coastal zone in Brazil.O sistema Cananéia-Iguape (Sudeste do Brasil, consiste em um complexo de canais lagunares localizados no interior de uma Reserva da Biosfera (assim definida pela UNESCO. Não obstante, variações ambientais importantes ocorreram nos últimos 150 anos, devido à abertura de um canal artificial, o Valo Grande, conectando o Rio Ribeira de Iguape ao sistema lagunar. O objetivo deste trabalho foi determinar a história das variações ambientais no sistema lagunar, causadas pela abertura do canal artificial, através da análise das camadas superiores da coluna sedimentar de um testemunho coletado no sistema. Neste sentido, uma abordagem integrada, envolvendo variações geoquímicas e faunísticas foi utilizada. As variações ambientais ocorridas apontam para mudanças drásticas na salinidade, nos

  4. Kinematics and geometry of structures in the southern limb of the Paraíba do Sul divergent structural fan, SE Brazil: a true transtensional shear

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    Nolan M. Dehler

    2006-06-01

    Full Text Available Shear zones geometry in the Paraíba do Sul belt, southeastern Brazil, delineates a NE-trending fan-like structure. Shear zones dip towards SE in the northern limb, and towards NW in the southern one. This geometry has been interpreted either due to transpression or to late folding of flat-lying thrust surfaces. Stretching lineation plunges to ENE-ESE in the northern limb and towards NNE-NE in the southern one. Structural data in the southern limb of the divergent fan suggest a two stage kinematic evolution in high-temperature conditions: an earlier stage with top-to-SSW/SW sinistral thrusting and orogenic-parallel tangential motion, and a later stage with top-down to NNE/NE transtensional deformation. We propose a heterogeneous deformation model to explain the observed shear reversal, and suggest that the imposed transpressional displacement gradient may change during progressive deformation due to transient rheological inhomogeneities in bulk pure shear strain. In the earlier stage, the partially molten material could easily accommodate the imposed strain rates, giving rise firstly to the SW-directed shearing. As the thermal disturbance tended to vanish and the convergence increased, the NNE-directed transtensional shearing developed. We propose that the transtensional deformation characterized in this paper could be related to extrusion processes during regional transpressional strain.A geometria das zonas de cisalhamento no CinturãoParaíba do Sul no Rio de Janeiro, sudeste do Brasil, delineia uma estrutura-em-leque com direção NE. Estaszonas de cisalhamento mergulham para SE no flanco norte, e para NW no flanco sul da estrutura. Esta geometria tem sido interpretada de duas formas: (a implantação de um regime transpressivo ou (b dobramento tardio de superfícies de empurrão originalmente sub-horizontais. A lineação de estiramento mineral mostra caimento para ENE-ESE, no flanco norte, e para NNE-NE, no flanco sul, onde ocorre a Zona

  5. Cambro-Ordovician post-collisional granites of the Ribeira belt, SE-Brazil: A case of terminal magmatism of a hot orogen

    Science.gov (United States)

    Valeriano, Claudio de Morisson; Mendes, Julio Cezar; Tupinambá, Miguel; Bongiolo, Everton; Heilbron, Monica; Junho, Maria do Carmo Bustamante

    2016-07-01

    This work presents an overview of the geology and chemical composition of the Cambrian-Ordovician post-collisional (COPC) granites and associated rocks of Ribeira belt, SE-Brazil. These COPC granites make up some of the most picturesque and highest (>2000 m) rocky peaks and cliffs of Rio de Janeiro state, an accessible case of post-orogenic granitic magmatism associated with the terminal stages of a hot Ediacaran-Cambrian (Brasiliano-Panafrican) orogen. The COPC magmatism intruded tonalitic to granitic orthogneisses of the Rio Negro arc (∼790-600 Ma) and associated paragneisses of the São Fidelis Group. Post-collisional magmatism started ∼10 m.y. after the latest collisional event, the Buzios Orogeny, lasting discontinuously from ∼510 Ma until ∼470 Ma. The 15 largest intrusive bodies in Rio de Janeiro State are referred to in the literature as the Parati/Mangaratiba, Vila Dois Rios, Pedra Branca, Suruí, Silva Jardim, Favela, Andorinha, Teresópolis, Frade, Nova Friburgo, Conselheiro Paulino, São José do Ribeirão, Sana and Itaoca granites. They crop out as rounded/elliptical stocks or gently-dipping sheets, always with sharp contacts with the country rocks, along with pegmatite and aplitic veins and dykes. COPC granites are grey and pink undeformed medium-grained biotite monzogranites with (K-feldspar) porphyritic, mega-crystic, equigranular and serial textures. Magmatic flow foliation is frequently observed. Peripheric xenolith zones are common as well as isolated xenoliths from the country rocks. In a compilation of more than 100 chemical compositions, SiO2 contents display a major mode at 71wt%. The COPC magmatism generated high-K calc-alkaline granites and quartz monzonites with predominantly metaluminous granites. Meso to melanocratic gabbroic and dioritic enclaves also have calc-alkaline affinity and likely represent more resistant mafic xenoliths from the Rio Negro Arc.

  6. Evidence of a Neoproterozoic active continental margin - Geochemistry and isotope geology of high-grade paragneiss from the Ribeira Orogen, SE Brazil

    Science.gov (United States)

    Capistrano, G. G.; Schmitt, R. S.; Medeiros, S. R.; Fernandes, G. L. F.

    2017-08-01

    Ediacaran paragneisses from the Palmital Unit are located in a key region, between two major tectonic domains of the Ribeira Orogen (in Rio de Janeiro, SE Brazil): the Cabo Frio Tectonic Domain and the Oriental Terrane. We present here petrographic, geochemical and isotopic data in order to partially unravel the origin and tectonic nature of the protoliths from these metamorphic rocks. Litharenites interpreted as immature sediments, mostly derived from the erosion of felsic rocks (granites/rhyolites and diorites/andesites) are here described. Multi-elements patterns and trace elements ratios reinforce an upper continental crust nature for the composition of the protoliths. These were probably located close to the source area and accommodated in semi-arid climate and high topography conditions. Tectonic discrimination diagrams indicate that the Palmital basin developed in an active continental margin, corroborated by the zircon detrital spectra. The main population of detrital zircon (ca. 750-550 Ma) is partially coeval with the age of the Rio Negro continental magmatic arc, resident in the Oriental Terrane. The Palmital basin could represent a forearc environment with no oceanic crust material, but only a continuous sedimentation of turbidites derived from the arc, with gradational bedding signifying a subaqueous environment, without outside tectonic disturbances. On the other hand, TDM ages of 1.6-1.8 Ga suggest that these sediments are not juvenile, indicating also a contribution from an ancient crust. This recycled continental crust could come either from the basement of the Oriental Terrane (which was not identified yet) or from the basement of the Cabo Frio Tectonic Domain. In the last assumption the Palmital deposition would be concomitant with the initiation of continental collision and the subduction of the passive margin of the Cabo Frio Tectonic Domain towards west. This unit was subsequently metamorphosed/deformed during the ca. 540 Ma collision between

  7. Mixobiota do Parque Nacional Serra de Itabaiana, SE, Brasil: Physarales Myxobiota of Serra de Itabaiana National Park, Sergipe State, Brazil: Physarales

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    Maria de Fátima de Andrade Bezerra

    2008-12-01

    Full Text Available Visando contribuir com informações sobre a diversidade de Myxomycetes em florestas úmidas e savanas Neotropicais, foram inventariadas as espécies de Physarales associadas a diferentes microhabitats no Parque Nacional Serra de Itabaiana, Sergipe, Brasil (10º40'52"S e 37º25'15"W, 180-670 m, 7966 ha. Durante 20 meses consecutivos foram efetuadas coletas de esporocarpos e de amostras de vários tipos de substratos a serem utilizados na preparação de 590 câmaras-úmidas. Coleções representativas do material estudado foram depositadas no Herbário UFP, com duplicatas no herbário MA - Fungi. A abundância e a constância de cada espécie foram determinadas. Apresenta-se uma lista comentada das sete espécies de Didymiaceae e 24 espécies de Physaraceae identificadas e sua distribuição no Brasil. As Physarales estão presentes em todos os microhabitats analisados, esporulando na estiagem e na estação chuvosa; fimícolas e suculentícolas foram registradas apenas em câmara-úmida. As espécies mais abundantes foram Physarum viride (Bull. Pers., P. stellatum (Massee G.W. Martin e P. cinereum (Batsch Pers. Exceto Diachea silvaepluvialis M.L. Farr, P. cinereume Physarum roseumBerk. & Broome, todos os táxons constituem primeira referência para Sergipe. Diderma rugosum (Rex T. Macbr., Didymium dubium Rostaf. e Physarum pulcherrimum Berk. & Ravenel estão sendo referidas pela primeira vez para o Brasil.The aims of this study were to obtain data on Myxomycete diversity in Neotropical forests and savannas and to determine the composition of the Physarales species assemblage associated with different microhabitats in Serra de Itabaiana National Park, Sergipe (10º 40'52"S; 37º 25'15"W, 180-670m alt., 7966 ha. During 20 months, sporocarps were collected and samples of substrata obtained for use in 590 moist-chamber cultures. Collections are deposited in the Herbaria UFP and MA - Fungi. The abundance and constancy of each species are given

  8. Climate and Hydrological Data Analysis for hydrological and solute transport modelling purposes in the Muriaé River basin, Atlantic Forest Biome, SE Brazil

    Science.gov (United States)

    Santos, Juliana; Künne, Annika; Kralisch, Sven; Fink, Manfred; Brenning, Alexander

    2016-04-01

    The Muriaé River basin in SE Brazil has been experiencing an increasing pressure on water resources, due to the population growth of the Rio de Janeiro urban area connected with the growth of the industrial and agricultural sector. This leads to water scarcity, riverine forest degradation, soil erosion and water quality problems among other impacts. Additionally the region has been suffering with seasonal precipitation variations leading to extreme events such as droughts, floods and landslides. Climate projections for the near future indicate a high inter-annual variability of rainfall with an increase in the frequency and intensity of heavy rainfall events combined with a statistically significant increase in the duration of dry periods and a reduced duration of wet periods. This may lead to increased soil erosion during the wet season, while the longer dry periods may reduce the vegetation cover, leaving the soil even more exposed and vulnerable to soil erosion. In consequence, it is crucial to understand how climate affects the interaction between the timing of extreme rainfall events, hydrological processes, vegetation growth, soil cover and soil erosion. In this context, physically-based hydrological modelling can contribute to a better understanding of spatial-temporal process dynamics in the Earth's system and support Integrated Water Resourses Management (IWRM) and adaptation strategies. The study area is the Muriaé river basin which has an area of approx. 8000 km² in Minas Gerais and Rio de Janeiro States. The basin is representative of a region of domain of hillslopes areas with the predominancy of pasture for livestock production. This study will present some of the relevant analyses which have been carried out on data (climate and streamflow) prior to using them for hydrological modelling, including consistency checks, homogeneity, pattern and statistical analyses, or annual and seasonal trends detection. Several inconsistencies on the raw data were

  9. Assessment of the acute toxicity of eutrophic sediments after the addition of calcium nitrate (Ibirité reservoir, Minas Gerais-SE Brazil: initial laboratory experiments

    Directory of Open Access Journals (Sweden)

    H. Janke

    Full Text Available This study evaluated the acute toxicity of sediment in a eutrophic reservoir after remediation with a calcium nitrate solution to retain phosphorus. The study involved microcosms of surface sediments and water from the sediment-water interface in the Ibirité reservoir. This reservoir, located in the vicinity of metropolitan Belo Horizonte (Minas Gerais, SE Brazil, is a water body that receives treated effluents from an oil refinery (REGAP-Petrobras, as well as high loads of untreated urban effluents from the city of Ibirité and surrounding areas and industrial effluents from a major industrial park. Incubation times of the treatment experiments were: t = 0, t = 5, t = 10, t = 25, t = 50, t = 85 and t = 135 days. One control microcosm and three treated microcosms were analysed in each time interval. Acute toxicity of water samples was assessed with Ceriodaphnia silvestrii Daday, 1902 and that of bulk sediment samples with Chironomus xanthus Rempel, 1939. Toxicity tests were carried out concomitantly with chemical analyses of dissolved inorganic nitrogen species (ammonia, nitrate and nitrite, sulfate and metals in the water samples of the microcosms. Acid volatile sulfides (AVS, simultaneously extracted metal (SEM and potentially bioavailable metal were analyzed in bulk sediment samples. Neither of the tested organisms showed toxicity in the control microcosm samples. The water column of the treated microcosm showed toxicity to C. silvestrii, starting at t = 10 days, while the sediment pore water toxicity started at t = 0 day. However, toxicity was found to decline from t = 85 days to t = 135 days. Sediments showed toxicity to C. xanthus during the entire experiment, except at the longest incubation time (t = 135 days. The overall results indicate that nitrate, which reached concentrations exceeding 1,200 mg N-NO3- L-1 in the sediment pore water of the treated microcosms, was most probably responsible for the toxicity of the samples. Although

  10. Unraveling the tectonic evolution of a Neoproterozoic-Cambrian active margin in the Ribeira Orogen (Se Brazil): U-Pb and Lu-Hf provenance data

    Energy Technology Data Exchange (ETDEWEB)

    Fernandes, Gabriel Lamounier de F. [Servico Geologico do Estado do Rio de Janeiro (DRM-RJ), Niteroi, RJ (Brazil); Schmitt, Renata; Bongiolo, Everton M.; Mendes, Julio [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil); Basei, Miguel S. [Universidade de Sao Paulo (USP), SP (Brazil)

    2015-07-01

    Full text: The Neoproterozoic-Ordovician Central Ribeira Orogen, in SE Brazil, presents two contrasting tectonic domains in its southern portion: (a) The Arc Domain constituted of Neoproterozoic to Paleozoic magmatic rocks and low P-high T metamorphic para (Sao Fidelis Group) - and ortho- derived units (in Oriental Terrane); and (b) The Basement Domain, constituted of a Paleoproterozoic and Neoproterozoic medium P-high T metamorphic para (Palmital-Buzios Succession)- and ortho-derived units (in Cabo Frio Tectonic Domain). Our work focuses on paraderived rocks sequences from both domains. The provenance analysis using U-Pb and Lu-Hf in zircon grains is presented here as an effective tool to unravel the paleogeography and nature of the pre-collisional sedimentary basins. We performed 505 analyses (U-Pb) on detrital zircon grains and some metamorphic overgrowths from six paragneiss samples. Besides, 141 analyses (Lu-Hf) in six samples only on the detrital zircon grains domains. All samples present a main peak from Neoproterozoic sources (750-570 Ma) and the other minor peak in the Stenian/Tonian periods (1200-850Ma), this indicate an orogenic contribution for this basin. Scarce register from the Mesoproterozoic and two peaks in the Archean/Paleoproterozoic (2.6 and 1.9 Ga) are recognized as a contribution from an ancient continent. The Lu-Hf data reveals a juvenile source for the detrital zircon grains from Buzios Succession while Palmital and Sao Fidelis Group units show a main crustal signature for their detrital zircon population. Based on the U-Pb and Lu-Hf data presented here, plus petrological data, geological correlations, and compilation of data from literature, we propose a tectonic model for the origin of para-derived rocks from the eastern part of the Ribeira Orogen. Starting with an extensional environment of ca. 600 Ma in a back-arc basin (Buzios succession deposition) and continuing as an active margin between 570 and 550 Ma in the fore-arc and prism

  11. APLICAÇÃO DO METODO DE ANÁLISE HIERARQUICA (MAH NA ANALISE E AVALIAÇÃO DE IMPACTOS AMBIENTAIS DOS SISTEMAS DE TRANSPORTES URBANOS

    Directory of Open Access Journals (Sweden)

    Dominique Mouette

    2010-04-01

    Full Text Available

    O estudo de impacto ambiental envolve uma grande quantidade de critérios e parâmetros, sendo necessário o trabalho conjunto de uma equipe multidisciplinar. A complexidade dos impactos decorrentes dos sistemas de transporte urbanos que possuem características e magnitudes muito diferentes, somada a não obrigatoriedade do estudo, fizeram com que poucos estudos fossem efetuados e tornou evidente a necessidade de metodologias de avaliação dos mesmos. Este estudo aborda a utilização do Método de Analise Hierárquica, um procedimento multicriterial na analise e avaliação dos impactos ambientais dos sistemas de transportes urbanos.

    ABSTRACT

    The study of environmental impacts involves a large amount of criteria and parameters being necessary to work with a multisciplinary team. The impacts due to urban transportation are very complex having different characteristics and magnitude, besides that, in Brazil, these studies are not obliged by law. These facts leads to few studies of the environmental impacts and evidences the necessity of developing methodologies which makes possible the impact's evaluation. This study refers to the utilization of the Analytical Hierarchy Process, a multicriteria procedure in the evaluation and analysis of environmental impacts in urban transportation.

  12. Toward a new tectonic model for the Late Proterozoic Araçuaí (SE Brazil)-West Congolian (SW Africa) Belt

    Science.gov (United States)

    Pedrosa-Soares, A. C.; Noce, C. M.; Vidal, Ph; Monteiro, R. L. B. P.; Leonardos, O. H.

    1992-08-01

    The Araçuaí Belt is a Late Proterozoic (Brasiliano Cycle) geotectonic unit which was developed along the southeastern margin of the São Francisco Craton (SE Brazil) and was formerly considered as being an ensialic orogen. It is correlated with the Pan-African West Congolian Belt (SW Africa) in many reports. In the western domain of the belt, the Macaúbas Group—the most important supracrustal sequence related to the evolution of the Araçuaí Belt —comprises the Terra Branca and Carbonita Formations, which consist of littoral glacial sediments to shelf turbidites. These formations grade upward and eastward to the Salinas Formation, consisting of distal turbidites related to submarine fans, pelagic sediments, and a rock association (the Ribeirão da Folha Facies) typical of an ocean-floor environment. Banded iron formations, metacherts, diopsidites, massive sulfides, graphite schists, hyperaluminous schists, and ortho-amphibolites, intercalated with quartz-mica schists and impure quartzites, characterize the most distinctive and restricted volcano-sedimentary facies yet found within the Salinas Formation. Ultramafic slabs were tectonically emplaced within the Ribeirão da Folha Facies. Eight whole rock samples of meta-ultramafic rocks and ortho-amphibolites yielded a SmNd isochronic age of 793 ± 90 Ma ( ɛNd(T) = +4.1 ± 0.6. MSWD = 1.76 ). The structures of the northern Araçuaí Belt are marked by a doen-dip stretching lineation (western domain) related to frontal thrusts which controlled tectonic transport from east to west; stretching lineation rakes decrease in the eastern tectonic domain, indicating dominant oblique to transcurrent motion; the northern arch of the belt is characterized by major high-dip transcurrent shear zones. Our tectonic model starts with marked fracturing, followed by rifting that took place in the São Francisco-Congo Craton around 1000 ± 100 Ma (ages of basic intrusions and alkaline anorogenic granites). A sinistral transfer

  13. Fuel cell: Brazil is focusing the energy of the millennium; Celula a combustivel: Brasil se prepara para a energia do milenio

    Energy Technology Data Exchange (ETDEWEB)

    Bombana, Clarice [Eletricidade Moderna (EM), Sao Paulo, SP (Brazil)

    2001-10-15

    The fuel cell is characterized as an important way of distributed energy generation, in this direction it can contribute for solution of demand control problems in relation to critical charging periods or energy rationing. Besides other benefits, can be highlighted the silent operation, utilization of residual heat and high quality of produced energy. Attentive to this tendency, COPEL and LACTEC have united efforts in order to diffuse this technology in Brazil.

  14. Natural gas energy efficiency potential: assessment of useful energy balance and opportunities for ESCOs in Brazil; Potencial de eficiencia energetica para gas natural: analise do balanco de energia util e oportunidades para ESCOs (Empresas de Servico de Conservacao de Energia) no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Aragao Neto, Raymundo Moniz de [Empresa de Pesquisa Energetica (EPE), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    The market for ESCOs in Brazil has a great opportunity, by offering energy efficiency services related to natural gas use. The article presents a revision of ESCO concept and analyses the market potential for this specific segment, based upon data from the Useful Energy Balance. (author)

  15. Analise funcional discriminativa em dislexia do desenvolvimento

    OpenAIRE

    Magda Solange Vanzo Pestun

    2001-01-01

    Resumo: Esta tese teve por objetivos avaliar e analisar através de provas neuropsicológicas, pedagógicas e exames complementares, crianças com possível diagnóstico de Dislexia do Desenvolvimento. Participaram como sujeitos 47 crianças, sendo 27 controles (sem dificuldades de aprendizagem) e 20 experimentais, com idade entre 8 e 13 anos, alunos de 23 série do 10grau de escola da rede pública da região de Campinas, SP. A coleta de dados se deu no HCIUNICAMP para os sujeitos do grupo experimenta...

  16. Metodologias de analise termoeconomica de sistemas

    OpenAIRE

    Sergio Augusto Araujo da Gama Cerqueira

    1999-01-01

    Resumo: Neste trabalho procede-se a um estudo das principais metodologias de análise termoeconômica, através de sua aplicação a um problema de cogeração. Modelos termodinâmico e econômico de uma central de cogeração com turbina a gás regenerativa são propostos e otimizados objetivando a minimização do custo exergético médio dos produtos, calor e potência. Quatro das principais metodologias, a Análise Funcional Termoeconômica, a Teoria do Custo Exergético, a Exergoeconomia e a Metodologia Estr...

  17. Viability analysis of energy generation from a thermoelectric power plant in the city of Rio de Janeiro, Brazil, using combined cycle; Analise da viabilidade de geracao de energia de uma central termeletrica na cidade do Rio de Janeiro operando em ciclo combinado

    Energy Technology Data Exchange (ETDEWEB)

    Guimaraes, Thiago Garritano Monteiro; Almeida, Silvio Carlos Anibal de [Universidade Federal do Rio de Janeiro (DEM/UFRJ), RJ (Brazil). Dept. de Engenharia Mecanica], Emails: tgguima@hotmail.com, silvioa@gmail.com

    2010-07-01

    This paper presents a modeling on the economic and energetic viability of a electric power system generation in a thermoelectric plant placed at Rio de Janeiro state, Brazil, using a combined cycle and cogeneration using the software Thermoflow 17.0.0 (academic version). This paper intends to know which is the better alternative of configuration of thermal electric plant among the various possible scenarios and also evaluate the time of return invested capital.

  18. ’n Analise van geselekteerde mediaberigte se uitbeelding van rassisme in Suid- Afrikaanse skole

    Directory of Open Access Journals (Sweden)

    C. de Wet

    2001-08-01

    Full Text Available An analysis of the portrayal of racism in South African schools in selected media reports The influence of the printed media on the establishment of perceptions and as a source of information must not be underestimated. Although it is generally accepted that no editor will publish a report containing false information, there are many journalistic tricks of the trade that can be used in support of a specific political and/or economic view. In this article an attempt was made to find out how and with what purpose in mind the printed media, accused of perpetuating racism in the South African society, report on racial conflict and tension in education, a social relationship that also seems to be interlarded with racism.

  19. Technical and economical analysis for the implementation of small scale GTL (Gas-to-liquids) technology to monetizing the associated remote offshore stranded natural gas in Brazil; Analise tecnica e economica da aplicacao da tecnologia GTL de pequena escala para a monetizacao do gas natural associado remoto offshore no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Castelo Branco, David Alves

    2008-02-15

    The volume of stranded natural gas global reserves is substantial and represents more than a third of the world's proven natural gas reserves. In Brazil, recent discoveries operated by PETROBRAS, with participation of other companies, show trend of stranded gas reserves incorporation, associated gas or not. This dissertation's main objective is to make a technical and economic analysis of the implementation of small-scale GTL technology for the exploitation of stranded associated natural gas offshore in Brazil. Thus, the dissertation held, initially, a survey of the processes of gasification and the manufacturers with technologies and projects based on these processes, for specific offshore applications. In a second stage, the conditions of the offshore environment were examined. After the confrontation of the technologies available and the operation conditions, a technological alternative has been chosen to be used in an illustrative economic analysis. The results show that GTL offshore option becomes viable at a minimum price of about US $ 40.00 / barrel. Although this value is greater than the robustness price adopted by PETROBRAS, there are prospects for the reduction of GTL technology costs. (author)

  20. Risk analysis and management of pipeline systems - the TRANSPETRO's experience in Sao Paulo and Brazil's Mid-West; Analise e gerenciamento de riscos de sistemas de dutos - a experiencia da TRANSPETRO em Sao Paulo e no Centro Oeste

    Energy Technology Data Exchange (ETDEWEB)

    Torres, Carlos Alberto Rodrigues; Yogui, Regiane Tiemi Teruya [TRANSPETRO - PETROBRAS Transporte S.A., Rio de Janeiro, RJ (Brazil)

    2003-07-01

    Risk Analysis is an important instrument on risk management and emergency control. TRANSPETRO has a long pipeline network to transport oil and by-products in Sao Paulo State and Brazil Midwest. The beginning of the elaboration of Risk Analysis in TRANSPETRO was in 1987 and extended continually until 2000. Since 2001, with the Excellence Program on Environmental and Operational Safety Management, a review of Risk Analysis has been done on all pipeline's system. This work presents the experience acquired, the main difficulties, the solutions adopted, the results about individual and social risks, the main risk management actions and the evolution of the studies during the last fifteen years pointing out the technical development of the TRANSPETRO, the environment agency and the consultant companies. (author)

  1. Analysis of technologies for natural gas transportation in Brazil: results comparison of the application of payback and NPV (Net Present Value) methods; Analise de tecnologias de transporte de gas natural no Brasil: comparacao dos resultados da aplicacao dos metodos 'payback' e VPL (Valor Presente Liquido)

    Energy Technology Data Exchange (ETDEWEB)

    Baioco, Juliana Souza; Santarem, Clarissa Andrade [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Dept. de Engenharia de Petroleo; Bone, Rosemarie Broeker; Ferreira Filho, Virgilio Jose Martins [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Dept. de Engenharia Industrial

    2008-07-01

    The increased demand for natural gas leads to global integration of markets, leading to decisions that cover the various technologies of transportation, noting the specific locations. The transport of natural gas considered more traditional (Liquefied Natural Gas and Pipeline) often unviable economically areas of operation due to cost. In this case, there are alternative technologies to reduce those costs. The article is to compare the technologies of transport, using the methodology of the Net Present Value (VPL) to identify one that has more positive VPL, which is the most profitable. Thus, in search of validate the results of SUBERO et al. (2004) for gas transport by Pipelines, Liquefied Natural Gas and Compressed Natural Gas. In addition, they are compared these results with the method of VPL and with the economic analysis presented in using the payback period of CHANG (2001) and SANTAREM et al. (2007). It was found that the results obtained in Brazil were identical to those obtained by CHANG (2001) and SUBERO et al. (2007), saving only some differences in magnitude due to the specific characteristics of the Brazilian economy. In other words, for the Brazilian case, the technology of Compressed Natural Gas (CNG) was the most economically viable with the method of VPL, followed by technology, Pipeline and Liquefied Natural Gas (LNG), regardless of the interest rates of 10% and 6.5% and periods of 20 and 30 years. The contribution of this work is to show that despite of the method, payback or VPL, the various alternatives for transporting natural gas to Brazil have the same ranking and economic viability. (author)

  2. Using AMS combined with mineral shape preferred orientation analysis to understand the emplacement fabrics of the Apiaí gabbro-norite (Ribeira Belt, SE Brazil)

    Science.gov (United States)

    Archanjo, Carlos J.; Campanha, Ginaldo A. C.; Salazar, Carlos A.; Launeau, Patrick

    2012-04-01

    The Apiaí gabbro-norite is a massive fine-grained Neoproterozoic intrusion emplaced in a core of synformal structure that deforms low-grade marine metasedimentary rocks of the Ribeira Belt of south-eastern Brazil. The lack of visible magmatic layering or any internal fabric has been a major limitation in deciding whether the emplacement occurred before or after the regional folding. To assist in the tectonic interpretations, we combine low-field anisotropy of magnetic susceptibility (AMS) and silicate shape preferred orientation (SPO) to reveal the internal structure of the mafic intrusion. Magnetic data indicate a mean susceptibility of about 10-2 SI and a mean anisotropy degree ( P) of about 1.08, essentially yielded by titanomagnetite. The magnetic and silicate foliations for P ≥ 1.10 are parallel to each other, while the lineations tend to scatter on the foliation plane, in agreement with the dominant oblate symmetry of the AMS and SPO ellipsoids. For lower P values, the magnetic and silicate fabrics vary from coaxial to oblique, and for P ≤ 1.05, their shapes and orientations can be quite distinct. The crystal size distribution (CSD) of plagioclase for P > 1.05 is log linear, in agreement with a bulk simple crystallisation history. These results combined show that for a strong SPO, corresponding to a magnetic anisotropy above 1.10, AMS is a reliable indicator of the magmatic fabric. They indicate that the Apiaí gabbro-norite consists of sill-like body that was inclined gently to the north by the regional folding.

  3. Application of the Life-Cycle Cost Analysis (LCCA) for established of energy efficiency standards: refrigerators sold in Brazil; Aplicacao da metodologia de analise do custo do ciclo de vida (ACCV) para o estabelicimento de padroes de eficiencia energetica: refrigeradores comercializados no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Silva Junior, Herculano Xavier da; Jannuzzi, Gilberto de Martino [Universidade Estadual de Campinas (UNICAMP), SP (Brazil); Queiroz, Guilherme de Castilho [Centro de Tecnologia de Embalagens (CETEA), Campinas, SP (Brazil)

    2006-07-01

    The goal of this paper is to present the work in the thesis developed by Silva Jr. (2005) who discusses the application of the methodologies of Life Cycle Cost Analysis (LCCA) as a tool to propose energy efficiency standards, additional to the voluntary labels already existing in the one-door Brazilian refrigerators. Another objective is to study the role of these instruments (energy efficiency labels and standards and environmental labels) as means to supply technical subsidies for the establishment of maximum level of electric energy consumption and environmental quality impact for electrical equipment in Brazil. The LCCA methodology allows to evaluate the impacts of the energy efficiency increasing in electrical equipment, resulting in important saving (energy, financial, carbon dioxide emissions avoided etc.) for the country and its citizens. The results reached in this studies offer important data to subsidize deep discussions with manufacturers and the government to stipulate minimum energy efficiency standards for the Brazilian refrigerators. Thus, with increase of 28,1% on the energy efficiency of the one-door Brazilian refrigerators in 2008 to reach a values of savings that can be in order of 54,63 TWh (with respective reduction of demand power of 208 MW), of US$ 6,23 Billions of Dollar (R$ 17,2 Billions of Reais) of reduction in the account of electric energy for the population and of approximately 22 billions of tons of CO{sub 2} not emitted on the environment after 30 years of the implantation of standard. These values, that can not be despised by government, manufacturers and consumers. One other interest of this work is to start the discussion, the possibility of the creation of environmental labelling (e.g., Green Seal - USA, Eco-label - EU etc.) that is an additional program/methodology, which, it may be utilized as support for development of technologies and for the increase of energy and environmental efficiency of the electric equipment. These

  4. Preliminary analysis of the regolithic clay covers from the region of Alfenas, Minas Gerais, Brazil, aiming to evaluate its use in the traditional ceramic industry; Analise preliminar das coberturas regoliticas argilosas da regiao de Alfenas, Minas Gerais, Brasil, visando sua utilizacao na industria de ceramica vermelha

    Energy Technology Data Exchange (ETDEWEB)

    Gaspar Junior, L.A.; Varajao, A.F.D.C. [Universidade Federal de Ouro Preto (UFOP), MG (Brazil). Escola de Minas. Dept. de Geologia; Moreno, M.M.T. [Universidade Estadual Paulista (UNESP), Rio Claro, SP (Brazil). Dept. de Petrologia e Metalogenia

    2009-07-01

    The region of Alfenas, in the state of Minas Gerais, Brazil, is predominantly constituted of Pre-Cambrian rocks with well developed alteration profiles in association with colluvial and alluvial sediments. No study to date has examined in detail its potential use in the ceramic industry. The scarce knowledge of its mineralogical and technological properties limits its value and consequently its industrial use. Until now, these clay materials have been used in a rudimental manner, in small scale in the fabrication of red tiles. The present study aimed at analyzing these clays mineralogically (X-ray diffraction), chemically (major and minor elements by X-ray fluorescence and organic carbon analysis) and technologically (pressing granulometric distribution; mechanical resistance; water absorption, apparent porosity; linear firing shrinkage; color of firing and others) in order to better understand the raw material and develop adequate technological applications. The best results of ceramic properties were the samples with higher organic content (more plastic clays) and higher values of Al{sub 2}O{sub 3} (kaolinite and gibbsite) and Fe{sub 2}O{sub 3} as well lower SiO{sub 2} content and finer grain size which contribute to a better sintering. (author)

  5. Of the clean development mechanism to the program of activities: an analysis of the bio diesel and wind energy uses in Brazil; Do mecanismo de desenvolvimento limpo ao programa de atividades: uma analise do uso do biodiesel e da energia eolica no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Rocha, Mayra Jupyara Braga

    2009-05-15

    The current actions of economic and industrial activities have resulted in increase of the concentration of greenhouse gases in the atmosphere since 1750. According to IPCC (2007) this alteration can increase the average temperature in the planet between 1,8 and 4,0 deg C up to 2100. The climate changes and the global warming are the most complicated environmental questions of our time and the actions took now will have effect on the future generations. In this context, a series of world-wide conferences and diverse scientific quarrels had occurred throughout the last decade, which culminated in the most important multilateral agreement firmed on climate changes, the Kyoto Protocol, signed in 1997. The Protocol is a landmark in the attempts of mitigation of the climate changes, since it established the commitment of the industrialized countries with emissions reduction targets of 5,2% to the level of 1990 emissions. To achieve such targets these countries count on three flexibilization mechanisms provided by the Kyoto Protocol: Joint implementation, Emission Trading and the Clean Development Mechanism (CDM) that it will be object of this study. The objective of this thesis is to carry through an evaluation of the CDM since its conception until the current days, searching to identify its dynamics and the main inherent gaps of this instrument and finally present two case studies of the bio diesel and wind energy uses in Brazil. (author)

  6. Analysis of the changes in the consumption profile of the system use gas in Bolivia-Brazil Gas Pipeline after integration with the Campinas-Rio Gas Pipeline; Analise das alteracoes do perfil de consumo de gas de sistema no Gasoduto Bolivia-Brasil apos a interligacao deste gasoduto com o Campinas-Rio

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Almir Beserra dos; Bisaggio, Helio da Cunha; Veloso, Luciano de Gusmao [Agencia Nacional do Petroleo, Gas Natural e Biocombustiveis (ANP), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    The natural gas pipeline transport is carried out by one or more compression stations. Each station possesses one or more compressors. The compressor's fuel is usually natural gas itself. The amount of natural gas consumed by the compressors fluctuates daily according to the demand at the city-gates. The daily operational result of a pipeline is known as imbalance. The imbalance is the difference between the natural gas entering into a in a pipeline and the volume delivered in the city-gates added to system use gas. The imbalance analyses in a pipeline that uses natural gas powered compressors requires the analyses of the system use gas. The aim of this work is to study the system use gas in the Bolivia-Brazil pipeline using the available data from the Superintendencia de Comercializacao e Movimentacao de Petroleo, seus Derivados e Gas Natural - ANP and compare the change of the volume consumed before and after the entry into operation of the Campinas-Rio gas pipeline. (author)

  7. Study of seasonal variation of the gamma radiation at Praia da Areia Preta, Guarapari, Espirito Santo, Brazil: radiometry and risk analysis; Estudo da variacao sazonal dos niveis de radiacao gama na Praia da Areia Preta, Guarapari, Espirito Santo, Brasil: radiometria e analise de risco ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Moura, Jorge Costa de

    2003-07-01

    The objective of this work is the study of the natural gamma radiation at the Areia Preta Beach (APB) in Guarapari, state of Espirito Santo, Brazil. The level of this radiation is dependent on the concentration of the radioactive mineral monazite in the sand. Probable risks of the exposure to gamma radiation at the APB were evaluated by the preliminary environmental risk analysis technique. For this purpose were conducted two annual sets monitoring gamma radiation in the APB every two months and so, acquired the seasonal variation of the radioactive levels. Additional/y was investigated the granulometry of the heavy mineral fraction and also carried out electronic microscopic scanning and radiometric age dating of the monazites of the APB, the mineral separation by magnetic susceptibility, and the mineralogic determination of the sediment. In order to gain a more complete picture of the seasonal variation, and, consequently, of the risk of exposure to ionizing radiation at the APB, the radiometric variation was also studied at some other beaches in the same region. The results indicate that the highest radiometric values are measured in summer and the lowest in winter. The radiometric dating of the monazites from the APB revealed the ages of 475 and 530 Ma. The Preliminary Hazard Analysis indicates a minimum risk of excessive radioactive exposition. It would take a period of approximately 870 years of a beach fully crowded to result in one case of bad consequences due to exposure to gamma radiation. (author)

  8. Strain Distribution in a Partially Molten Crust: Insights from the AMS Study of Carlos Chagas Anatexite, ARAÇUAI Belt (se Brazil)

    Science.gov (United States)

    Cavalcante, G.; Silva, M.; Vauchez, A. R.

    2012-12-01

    Anatectic domains, characterized by abundant migmatites, represent portions of the middle crust that have been partially molten. The Carlos Chagas anatexite is a unit that includes diatexites, metaxites and anatetic, peraluminous granites. It is localized in eastern domain of the Araçuaí Belt, which was formed during the amalgamation of West Gondwana by the collision of the Sao Francisco and Congo cratons. This orogenic segment underwent a synkinematic high temperature (>750oC)-low pressure (~ 6MPa) metamorphism that causes widespread partial melting of the middle crust. The Carlos Chagas unit is composed by quartz, feldspar, garnet, biotite, sillimanite, ilmenite, rutile and cordierite. U-Pb data indicates that its crystallization occurred c. a. 574 ~ 3 Ma. The main feature of this migmatite is the presence of a pervasive magmatic foliation, which is marked by the preferential alignment of biotite, alkali feldspars and plagioclase. At the grain scale, quartz displays evidence of interstitial crystallization and few solid-state deformation fabrics are observed. We used anisotropy of magnetic susceptibility (AMS) as a tool for recovering mineral fabric and thus the flow field of the Carlos Chagas anatexite. Magnetic properties of 153 samples were measured. They yield dominantly low values of the bulk magnetic susceptibility (km 0) being dominantly more frequent than prolates ones. These magnetics characteristics are consistent with biotite being the dominant carrier of the AMS. Magnetic foliations and lineations suggest two main structural patterns. The northern portion of the studied area shows shallowly plunging lineations (02° - 20°) to SE (140°-120°) or NW (340°-300°), while the foliation strikes NW-SE with shallow dips (03°-10°). Local subvertical foliation dips (70°) are due to NE-SW trending transcurrent shear zones. The southern region shows complex magnetic fabric patterns. Magnetic lineation plunges range from 05° to 58°, in varied directions

  9. Micronutrients (Ca, Fe, K, Na, Se, Zn) assessment and fatty acids profile in fish most consumed by Cubatao community, Sao Paulo, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Curcho, Michel R.S.M.; Farias, Luciana A.; Fonseca, Barbara C.; Nascimento, Soraia M.; Favaro, Deborah I.T., E-mail: mrcurcho@ipen.b, E-mail: defavaro@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Kuniyoshi, Leonardo S.; Braga, Elisabete S., E-mail: edsbraga@usp.b [Universidade de Sao Paulo (USP), SP (Brazil). Inst. Oceanografico. Lab. de Nutrientes, Micronutrientes e Tracos nos Oceanos (LABNUT); Baggio, Sueli R., E-mail: sueli@ital.sp.gov.b [Instituto de Tecnologia de Alimentos (ITAL), Campinas, SP (Brazil). Centro de Ciencia e Qualidade de Alimentos

    2009-07-01

    Fish are a healthy source of protein, providing omega-3 (n-3) the fatty acids that reduce cholesterol levels, and reduce the incidence of heart disease and stroke. The purpose of the present study was to assess the concentration of some micronutrients and also fatty acids profile in muscles of the most consumed fish species from Cubatao coastal region. Cubatao carnivorous fish species analyzed were: Micropogonias furnieri (Corvina), Macrodon ancylodon (Pescada) and Menticirrhus americanus (Perna-de-Moca), and planktivorous species Sardinella braziliensis (Sardinha) and Mugil liza (Tainha). Micronutrients (Ca, Fe, K, Na, Se, Zn) in fish muscle were determined by means of instrumental neutron activation analysis (INAA). Fatty acids profiles in these muscle fish samples were performed by gas chromatography. Total saturated fatty acids ranged from 23.0% in M. ancylodon to 50.0% in M. liza. Total polyunsaturated fatty acid contents varied from 10.9% in M. liza 38.4% in S. braziliensis. These fish species presented different proportions of polyunsaturated fatty acids of the n-3 family and of the n-6 family. Regarding the n-6 family, M. furnieri showed the highest values (13.3%) and M. ancylodon, the lowest ones (4.1%). On the other hand, for the n-3 family, S. braziliensis presented the highest value (31.8%) and M. liza the lowest one (5.7%). Regarding micronutrients content, great concentration variations between individual of the same species and between different species were observed. From the nutritional point of view S. braziliensis is the best choice showing highest content of fatty acid n-3 family and micronutrient concentrations. (author)

  10. Micronutrients (Ca, Fe, K, Na, Se, Zn) assessment and fatty acids profile in fish most consumed by Cubatao community, Sao Paulo, Brazil

    International Nuclear Information System (INIS)

    Curcho, Michel R.S.M.; Farias, Luciana A.; Fonseca, Barbara C.; Nascimento, Soraia M.; Favaro, Deborah I.T.; Kuniyoshi, Leonardo S.; Braga, Elisabete S.; Baggio, Sueli R.

    2009-01-01

    Fish are a healthy source of protein, providing omega-3 (n-3) the fatty acids that reduce cholesterol levels, and reduce the incidence of heart disease and stroke. The purpose of the present study was to assess the concentration of some micronutrients and also fatty acids profile in muscles of the most consumed fish species from Cubatao coastal region. Cubatao carnivorous fish species analyzed were: Micropogonias furnieri (Corvina), Macrodon ancylodon (Pescada) and Menticirrhus americanus (Perna-de-Moca), and planktivorous species Sardinella braziliensis (Sardinha) and Mugil liza (Tainha). Micronutrients (Ca, Fe, K, Na, Se, Zn) in fish muscle were determined by means of instrumental neutron activation analysis (INAA). Fatty acids profiles in these muscle fish samples were performed by gas chromatography. Total saturated fatty acids ranged from 23.0% in M. ancylodon to 50.0% in M. liza. Total polyunsaturated fatty acid contents varied from 10.9% in M. liza 38.4% in S. braziliensis. These fish species presented different proportions of polyunsaturated fatty acids of the n-3 family and of the n-6 family. Regarding the n-6 family, M. furnieri showed the highest values (13.3%) and M. ancylodon, the lowest ones (4.1%). On the other hand, for the n-3 family, S. braziliensis presented the highest value (31.8%) and M. liza the lowest one (5.7%). Regarding micronutrients content, great concentration variations between individual of the same species and between different species were observed. From the nutritional point of view S. braziliensis is the best choice showing highest content of fatty acid n-3 family and micronutrient concentrations. (author)

  11. Isolation of Pseudomonas aeruginosa strains from dental office environments and units in Barretos, state of São Paulo, Brazil, and analysis of their susceptibility to antimicrobial drugs Isolamento de cepas de Pseudomonas aeruginosa provenientes do meio ambiente e de equipos dentarios em clinicas dentarias em Barretos, São Paulo, Brasil; analises da susceptibilidade das cepas a drogas antimicrobianas

    Directory of Open Access Journals (Sweden)

    Ana Claudia de Oliveira

    2008-09-01

    Full Text Available A wide variety of opportunistic pathogens has been detected in the tubing supplying water to odontological equipment, in special in the biofilm lining of these tubes. Among these pathogens, Pseudomonas aeruginosa, one of the leading causes of nosocomial infections, is frequently found in water lines supplying dental units. In the present work, 160 samples of water, and 200 fomite samples from forty dental units were collected in the city of Barretos, State of São Paulo, Brazil and evaluated between January and July, 2005. Seventy-six P. aeruginosa strains, isolated from the dental environment (5 strains and water system (71 strains, were tested for susceptibility to six antimicrobial drugs most frequently used against P. aeruginosa infections. Susceptibility to ciprofloxacin, followed by meropenem was the predominant profile. The need for effective means of reducing the microbial burden within dental unit water lines is emphasized, and the risk of exposure and cross-infection in dental practice, in special when caused by opportunistic pathogens like P. aeruginosa, are highlighted.Uma ampla variedade de patógenos oportunistas tem sido detectadas nos tubos de alimentação de água dos equipos odontológicos, particularmente no biofilme formado na superfície do tubo. Entre os patógenos oportunistas encontrados nos tubos de água, Pseudomonas aeruginosa é reconhecida como uma das principais causadoras de infecções nosocomiais. Foram coletadas 160 amostras de água e 200 amostras de fomites em quarenta clinicas odontológicas na cidade de Barretos, São Paulo, Brasil, durante o período de Janeiro a Julho de 2005. Setenta e seis cepas de P. aeruginosa, isoladas a partir dos fomites (5 cepas e das amostras de água (71 cepas, foram analisadas quanto à susceptibilidade à seis drogas antimicrobianas freqüentemente utilizadas para o tratamento de infecções provocadas por P. aeruginosa. As principais suscetibilidades observadas foram para a

  12. Age of the Serra do Martins Formation, Borborema Plateau, northeastern Brazil: constraints from apatite and zircon fission track analysis; Idade da Formacao da Serra dos Martins, Planalto da Borborema, nordeste do Brasil: analise de tracos de fissao em apatia e zircao

    Energy Technology Data Exchange (ETDEWEB)

    Morais Neto, Joao Marinho de [PETROBRAS, Rio de Janeiro, RJ (Brazil). E e P. Gerencia de Interpretacao], e-mail: jmarinho@PETROBRAS.com.br; Green, Paul Frank [Geotrack International Pty. Ltd., Brunswick West, Victoria (Australia)], e-mail: mail@geotrack.com.au; Karner, Garry David [ExxonMobil Upstream Research Co., Houston TX (United States)], e-mail: garry.d.karner@exxonmobil.com; Alkmin, Fernando Flecha de [Universidade Federal de Ouro Preto (UFOP), MG (Brazil). Escola de Minas], e-mail: alkmin@degeo.ufop.br

    2007-11-15

    Results of apatite and zircon fission track analysis of samples from the Serra de Santana mesa provide quantitative constraints on the depositional age of the nonfossiliferous Serra do Martins Formation. This unit consists of sedimentary remnants preserved at high elevations on the Borborema Plateau and its distributions and age are considered important in understanding the geomorphological evolution and denudation history of northeastern Brazil following the early Cretaceous breakup. We also report apatite fission track results from post-rift units of the Potiguar Basin (Acu and Tibau formations). Apatite fission track analysis (AFTA) of samples from the Serra do Martins Formation suggests that they reached maximum paleotemperatures around 60 deg C, from which they began to cool some time between 30 and 0 Ma. Due to the high thermal gradients related to the prolonged Cenozoic volcanism in the study area, we hypothesize that the paleotemperatures modeled for those samples may be related dominantly to an anomalous heat flow, rather than to significant burial. Zircon fission track analysis (ZFTA) in two samples of the Serra do Martins Formation yields ages of 135 {+-}18 Ma and 165{+-}40 Ma, but both samples show a significant spread in the data, and the youngest population of grains in these samples are characterized by ages of 83{+-} Ma and 65{+-} Ma, respectively. As the AFTA data show that these ages have not been reset after deposition, the zircon fission track ages must represent inherited provenance ages, demonstrating that those sediments can be no older than Paleocene. Independent lithological observations provide additional support to reject a stratigraphic correlation between the Serra do Martins and Acu formations. Combining the AFTA and ZFTA results, and integrating available geological evidence, we suggest that the Serra do Martins Formation was deposited some time between 64 and 25 Ma (Paleocene-Oligocene). Modeled thermal history solutions from AFTA in

  13. Influence of Spartina alterniflora and tide level on the structure of polychaete associations in an euryhallne salt marsh in cananéia lagoon estuarine region (SE Brazil

    Directory of Open Access Journals (Sweden)

    Fabiano da Silva Attolini

    1997-01-01

    Full Text Available Polychaete species composition, abundance and seasonal variation were analyzed in relation to Spartina alterniflora cover and tide level at Ponta do Arrozal, Cananéia, during 1989/1990. Two intertidal stations were located on the S. alterniflora bellt, one ca mean high water of neap tides (MHWN and the other ca mean high water of spring tides (MHWS. Two other stations were established at corresponding tide levels at an adjacent site devoid of vegetation. A total of 17 species were collected. Each station was sampled twice seasonally with a 20 cm of diameter corer. Capitella capitata, Isolda pulchella, Nereis oligohalina and Lumbrineris sp were the most abundant species. Statistically significant differences bettween the vegetated and bare sites considered were observed for the number of species, density, diversity and evenness, with their values being higher at the vegetated site. Multivariate analysis showed spatial variations of the fauna according to vegetation cover and tide level. In relation to vegetation cover, polychaetes assemblages were distinguishable mainly by individual species densities of the more common species, since the most abundant species were present at the vegetated and bare sites. In relation to tide level, the faunal densities and number of species at the MHWN station were significantly higher than those at the MHWS station mainly at the bare site.Analisou-se a composição, abundância e variação sazonal de espécies de poliquetas em relação à cobertura vegetal de Spartina alterniflora e o nível de maré na Ponta do Arrozal, Cananéia, nos anos 1989/1990. Duas estações entremarés foram estabelecidas no cinturão de S. alterniflora, uma na linha da média de marés altas de quadratura (LMMQ e outra, na linha da média de marés altas de sizígia (LMMS. Duas outras estações de coleta foram estabelecidas a níveis de maré correspondentes, em um local adjacente desprovido de vegetação. Cada estação foi

  14. Long-term evolution of the western South Atlantic passive continental margin in a key area of SE Brazil revealed by thermokinematic numerical modeling using the software code Pecube

    Science.gov (United States)

    Stippich, Christian; Krob, Florian; Glasmacher, Ulrich A.; Hackspacher, Peter C.

    2016-04-01

    The aim of the research is to quantify the long-term evolution of the western South Atlantic passive continental margin (SAPCM) in SE-Brazil. Excellent onshore outcrop conditions and extensive pre-rift to post-rift archives between São Paulo and Laguna allow a high precision quantification of exhumation, and rock uplift rates, influencing physical parameters, long-term acting forces, and process-response systems. Research will integrate published1 and partly published thermochronological data from Brazil, and test lately published new concepts on causes of long-term landscape and lithospheric evolution in southern Brazil. Six distinct lithospheric blocks (Laguna, Florianópolis, Curitiba, Ilha Comprida, Peruibe and Santos), which are separated by fracture zones1 are characterized by individual thermochronological age spectra. Furthermore, the thermal evolution derived by numerical modeling indicates variable post-rift exhumation histories of these blocks. In this context, we will provide information on the causes for the complex exhumation history of the Florianópolis, and adjacent blocks. The climate-continental margin-mantle coupled process-response system is caused by the interaction between endogenous and exogenous forces, which are related to the mantle-process driven rift - drift - passive continental margin evolution of the South Atlantic, and the climate change since the Early/Late Cretaceous climate maximum. Special emphasis will be given to the influence of long-living transform faults such as the Florianopolis Fracture Zone (FFZ) on the long-term topography evolution of the SAPCM's. A long-term landscape evolution model with process rates will be achieved by thermo-kinematic 3-D modeling (software code PECUBE2,3 and FastScape4). Testing model solutions obtained for a multidimensional parameter space against the real thermochronological and geomorphological data set, the most likely combinations of parameter rates, and values can be constrained. The

  15. Geografia social da AIDS no Brasil The social geography of AIDS in Brazil

    Directory of Open Access Journals (Sweden)

    Francisco Inácio Bastos

    1995-02-01

    Full Text Available São divulgados os primeiros resultados da avaliação da dinâmica da epidemia da AIDS no Brasil através de técnicas de análise da distribuição espacial. São revisadas questões metodológicas, apontando as dificuldades de estabelecer regiões geográficas homogêneas no Brasil. Descrevem-se tendências recentes da dinâmica da epidemia da AIDS no Brasil - pauperização, interiorização e alteração na participação proporcional das categorias de exposição. Avalia-se a distribuição de casos de AIDS por Unidades da Federação (UFs, confeccionando-se mapas relativos à disseminação da epidemia no período 1987-1993 nas diversas UFs, estabelecendo-se os Centros Gravimétricos (CGs relativos a esses anos. A análise do posicionamento e deslocamento pluri-anual desses CGs indica a força atrativa do Estado de São Paulo como pólo de difusão da epidemia e uma expansão simultânea da epidemia em direção às fronteiras de ocupação. Essas tendências colocam dificuldades adicionais às atividades de prevenção ao acrescentarem novos segmentos populacionais e regiões geográficas ao quadro observado inicialmente nas principais regiões metropolitanas e segmentos mais afetados.The first of a series of papers concerning the evaluation of the dynamics of the AIDS epidemic in Brazil employing techniques of geographical analysis, is here presented. Results of research undertaken in the US (especially in New York City are compared with those of a recent investigation carried out in the city of S.Paulo, Brazil (Grangeiro, 1994. In both, geographical patterns of socio-demographic variables correlate with different patterns of the spread of the AIDS epidemic through the transmission groups. Recent trends of the AIDS epidemic in Brazil: the displacement toward medium sized cities and expansion frontiers, increasing report of AIDS cases among the poor and underprivileged, changes in the pattern of transmission with proportional

  16. Monazite ID-TIMS U-Pb geochronology in the LAGIR laboratory, Rio de Janeiro State University: protocols and first applications to the assembly of Gondwana supercontinent in SE-Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Aguair Neto, Carla Cristiane; Valeriano, Claudio M.; Heilbron, Monica; Lobato, Marcela, E-mail: neto.carla@hotmail.com [Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ (Brazil). Faculdade de Geologia. Lab. de Geocronologia e Isotopos Radiogenicos; Passarelli, Claudia R. [Universidade de Sao Paulo (USP), SP (Brazil). Instituto de Geociencias

    2014-03-15

    The chemical and spectrometric procedures of the U-Pb geochronology method on monazites, recently installed in the LAGIR laboratory, are described in detail. In addition, preliminary results on monazite samples from the Brasilia and Ribeira belts are reported and discussed in the context of the regional geology. Several experiments for calibration of ion exchange chromatographic columns with the AG-1x8 resin, were performed with HCl, using dissolved natural monazite samples. The Pb blanks of reagents are ∼ 0.5 pg/g in acids and ∼1 pg/g in H{sub 2}O. The total Pb blanks in chemical procedures were below 22 pg. Preliminary results are presented from three case studies related to Brasiliano orogenic belts of SE-Brazil, which correlate very well with previous age determinations from literature: two sub-concordant grains from an Araxa Group quartzite (southern Brasilia belt) define a concordia age of 602.6 ±1.4 Ma; a -0.8% discordant grain from a quartzite of the Sao Fidelis Group (Costeiro Domain, central Ribeira belt) yielded a concordia age of 535.3 ± 2.4 Ma; two 0.4 % and 1.3 % discordant monazite grains from the post-collisional Itaoca Granite (Costeiro Domain, central Ribeira belt) define a concordia age of 476.4 ± 1.8 Ma. (author)

  17. Se los por se lo

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    José Luis Rivarola

    1985-12-01

    Full Text Available El sistema de la conjugación "objetiva" plantea interesantesproblemas que fueron tratados en parte por K. Heger (1966 en suestudio comparativo del francés y del español. De la comparaciónse desprende, por ejemplo, que en español hay un cierto número deambigüedades que no permiten establecer un "paradigma tan completo y unívoco" como en el caso del francés. Dentro de estas ambigüedades se encuentran las que propicia el gramema se: "El morfema [gramema] se funciona no sólo como pronombre reflexivo, sinotambién como variante combinatoria del pronombre personal complemento indirecto de la tercera persona.

  18. Age and growth of the queen triggerfish Balistes vetula (tetraodontiformes, balistidae of the central coast of Brazil

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    Albuquerque Cristiano Queiroz de

    2011-09-01

    Full Text Available Dorsal spines (n=649 of the queen triggerfish Balistes vetula were collected between 1997 to 1999 at the central coast of Brazil and used to evaluate fish growth. The marginal increment analysis validated that 1 increment was formed annually (n=476, with minimum values observed at the summer, and coinciding with the maximum proportion of translucent growth bands. Fish's maximum fork length and age were 460 mm and 14 years respectively. The parameters of the von Bertalanffy function were: Fl∞ = 441.3 mm, K = 0.14 and T0= -1.8. Weight gain by year ranged from about 110 g yr-1 for age 5 to about 30 g yr-1 for age 14. Compared to other studies, B. vetula growth in the Central coast of Brazil was slow, which could be related to the influence of the oligotrophic water from Brazil current. Our results indicate that B. vetula's fisheries in the Central coast of Brazil until 1999 have caught mostly adult individuals over the sexual maturation lenght, 60% of them with ages from 6 to 8 yr.Entre 1997 e 1999 foram amostrados 649 espinhos de Balistes vetula na costa central do Brazil e foram utilizados para a avaliação de crescimento. A validação de anéis anuais de crescimento foi realizada através da analise de incrementos marginais, cujos valores mínimos foram observados durante o verão, coincidindo com a maior proporção de anéis translúcidos na borda do espinho. Portanto, forma-se um anel de crescimento a cada ano. A idade e o comprimento padrão máximos observados foram respectivamente 14 anos e 460 mm. Os parâmetros da equação de von-Bertalanffy foram: Fl∞ = 441,3 mm, K = 0,14 e T0= -1,8. O incremento anual em peso variou de 110 g yr-1 para a idade 5 a 30 g yr-1 para a idade 14. Comparados a outros estudos, nossos resultados indicam taxas de crescimento mais baixas, que podem ter sido induzidas pela influência oligotrófica da corrente do Brasil ao longo da costa central do Brasil. Nossos resultados indicam que a pesca do peroá at

  19. Life-forms, pollination and seed dispersal syndromes in plant communities on ironstone outcrops, SE Brazil Formas de vida, síndromes de polinização e dispersão de sementes em comunidades vegetais sobre afloramentos ferruginosos, SE do Brasil

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    Claudia Maria Jacobi

    2011-06-01

    Full Text Available Rock outcrops play an important role in enhancing plant diversity in montane ecosystems. Ironstone outcrops (cangas are among the lithotypes less known and most threatened in SE Brazil, due to mining activities. Besides species composition, a key feature to promote their conservation and restoration is the knowledge of the community prevalent life-forms, pollination and seed dispersal syndromes. The analyses were done based on published floristic surveys of cangas in SE Brazil. A total of 353 species of angiosperms (70 families were assigned to one of the two predominant physiognomies (open areas and forest islands on ironstone outcrops. Sixteen families responded for 70% of all species. Compared to Raunkiaer's spectrum, phanerophytes were over- and therophytes were under-represented. Phanerophytes were the predominant life-form in forest islands, while hemicryptophytes were outstanding in open areas. Entomophily was the dominant pollination syndrome in both habitats. Zoochory was dominant in forest islands and ranked last in open areas, where anemochory and autochory prevailed. Considering that both forest islands and open areas are subjected to the same climatic conditions, the results corroborate the influence of geoedaphic components in the three traits analysed.Afloramentos rochosos têm um papel importante na diversidade vegetal de ecossistemas montanos. As cangas (afloramentos ferruginosos estão entre os litotipos menos conhecidos e mais ameaçados do sudeste do Brasil, devido às atividades minerarias. Além da composição de espécies, um aspecto fundamental para promover sua conservação e restauração é o conhecimento das formas de vida, síndromes de polinização e dispersão de sementes dominantes. As análises foram baseadas em listas florísticas publicadas de cangas do sudeste do Brasil. Um total de 353 espécies de angiospermas (70 famílias foi distribuído entre as duas fisionomias predominantes (áreas abertas e cap

  20. Gamma-spectrometric surveys in differentiated granites. II: the Joaquim Murtinho Granite in the Cunhaporanga Granitic Complex, Parana, SE Brazil; Levantamentos gamaespectrometricos em granitos diferenciados. II: O exemplo do Granito Joaquim Murtinho, Complexo Granitico Cunhaporanga, Parana

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira, Francisco Jose Fonseca [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil). Dept. de Geologia. Lab. de Pesquisas em Geofisica Aplicada; Fruchting, Allan [Votorantim Metais, Sao Paulo, SP (Brazil)], e-mail: allan.fruchting@vmetais.com.br; Guimaraes, Gilson Burigo [Universidade Estadual de Ponta Grossa (UEPG), PR (Brazil). Dept. de Geociencias], e-mail: gburigo@ig.com.br; Alves, Luizemara Soares [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)], e-mail: luizemara@petrobras.com.br; Martin, Victor Miguel Oliveira; Ulbrich, Horstpeter Herberto Gustavo Jose [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Geociencias. Dept. de Mineralogia e Geotectonica], e-mail: vicmartin6@ig.com.br, e-mail: hulbrich@usp.br

    2009-07-01

    Detailed mapping at the NW corner of the large Neo proterozoic Cunhaporanga Granitic Complex (CGC), Parana state, SE Brazil, redefined the Joaquim Murtinho Granite (JMG), a late intrusion in CGC with an exposed area of about 10 km{sup 2}, made up mainly by evolved 'alaskites' (alkali-feldspar leuco granites). This unit is in tectonic contact with the Neoproterozoic-Eocambrian volcano-sedimentary Castro Group, to the W, and is intrusive into other less evolved granitic units of the CGC to the E. Petrographically, JMG shows mainly mesoperthite and quartz, with subordinate amounts of altered micas and some accessory phases, mainly zircon. The equi to inequigranular granites are usually deformed with cataclastic textures, are often brecciated, and may have miarolitic structures. Formation of late albite, sericite, carbonate and hematite was caused by deuteric and hydrothermal alteration. A gamma-ray spectrometric survey at 231 stations which measured total counts (TC), Ueq K%, eU ppm and eTh ppm was used to construct several direct and derived maps. Compared to neighboring units the JMG has significant anomalies, especially in the TC, %K, eTh and eU maps, although the differences are less obvious in some derived maps. These evolved granites are enriched in these three elements. Geochemical behavior of K, Th and U is used to analyse the results observed in maps. Enhanced weathering under a subtropical climate with moderate to high average temperatures and heavy rainfall affects mainly feldspars and biotite, and may also destabilize most U and Th-bearing accessory phases. Th is most likely retained in restite minerals in soils, being relatively immobile, while part of U may migrate as uranyl ion in oxidizing media. K is especially affected by feldspar alteration to K-free clays (mainly kaolinite), and may be completely leached. Gamma-ray spectrometric methods are valid tools to study facies in granitic rocks, especially in those that are enriched in K, Th and U

  1. Saúde mental na atenção básica: como se configura a produção do conhecimento no Brasil Salud mental en la atención primaria: cómo se configura la producción del conocimiento en Brasil Mental health in primary care: how to set up knowledge production in Brazil

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    Lisnéia Fabiani Bock

    2011-12-01

    ciencias de la salud en general y en la enfermería brasileña. La muestra estuvo compuesta por 42 artículos, sometidos a un análisis descriptivo. Los resultados señalan la región Sudeste con mayor ocurrencia de producción en contraste con la región Norte, que no registró ningún estudio divulgado en las bases investigadas. Las revistas de salud en general y salud pública en particular divulgaron un mayor número de estudios en salud mental en la atención primaria, seguidas por revistas especializadas. Un 48% de los estudios eran investigaciones originales, presentando resultados de tesis y memorias. Reflexionamos sobre la necesidad de que las producciones presenten, de forma más explícita y detallada, el delineamiento de los estudios, principalmente, en la descripción de los objetivos y etapas metodológicas.This study seeks, through integrative review of the literature, to identify Brazillian scientific production in the area of mental health in primary care, using Latin-American databases. The bibliographical research covered national publications from 2001 to 2008 carried out by searching the VHL (Virtual Library of Health, and the LILACS (Latin America and Carribean Health Sciences and BDENF (Bibliographic Database Specialist in Nursing in Brazil databases; the main databases for general health sciences and nursing in Brazil. The sample was composed of 42 articles, submitted to descriptive analysis. The result shows the South-east region as having the higher level of production in contrast with the North region, which did not have any published study in the bases investigated. Health journals in general and public health journals in particular publish higher numbers of studies of mental health in primary care, followed by specialist magazines. Forty-eight percent of the studies were original research, presenting the results of theses and dissertations. We reflect on the need for articles to present, in a more explicit and detailed way, the design of the

  2. ALGUÉM SE LEMBRA DO DOCUMENTO 97?

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    Cássio Murilo Dias da Silva

    2015-01-01

    Full Text Available Este artigo analisa a recepcao, o uso e os desdobramentos do capitulo VI da Dei Verbum nos documentos 94, 97 e 102 da CNBB. Todos eles como respostas do episcopado catolico brasileiro a Exortacao Apostolica Verbum Domini, principalmente ao apelo de que se faca a “animacao biblica da pastoral”. Embora se afirme repetidamente nesses documentos que “animacao biblica da pastoral” não se confunde com “pastoral biblica”, esses dois conceitos nao foram adequadamente discutidos nem distinguidos, o que provocou (e ainda provoca certa confusao no seu uso. Neste artigo, alem de propor um principio de diferenciacao para esses dois conceitos, apresento, para cada um dos tres documentos estudados, uma breve sintese dos paragrafos de interesse e uma analise critica da redacao final. Mas o foco e, de fato, o Documento 97. Por ser especifico sobre o uso da Biblia na vida e na pastoral, deveria ter provocado maior impacto do que efetivamente provocou. Este artigo tenta entender este fenomeno ao mesmo tempo em que propoe alguns questionamentos decorrentes.

  3. Caracterização molecular parcial do gene gag de amostras do vírus da artrite-encefalite caprina (CAEV isoladas de animais naturalmente infectados no Rio Grande do Sul, Brasil Molecular characterization of part of the gag gene of caprine arthritis-encephalitis virus isolated from naturally infected goats from Rio Grande do Sul, Brazil

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    Denise M. Marchesin

    1998-07-01

    Full Text Available Realizou-se a análise de parte do gene gag, que codifica para as proteínas do capsídeo viral, de 5 amostras de CAEV isolados de animais naturalmente infectados do Rio Grande do Sul, Brasil. As amostras foram analisadas por PCR e clivagem com enzimas de restrição (DdeI, HaeIII e NdeI. Fragmentos de aproximadamente 600 pb foram amplificados na PCR e submetidos à digestão enzimática. Os perfis obtidos foram comparados com as seqüências gag de 6 lentivírus de pequenos ruminantes.Os resultados obtidos permitiram separar as amostras em 3 grupos distintos. Os fragmentos observados foram diferentes dos descritos previamente.The gag gene of 5 CAEV samples, isolated from naturally infected goats from Rio Grande do Sul, Brazil, were analised by PCR and restriction endonuclease (DdeI, HaeIII e NdeI digestion. Fragments of about 600 bp were amplified by PCR and submitted to enzymatic digestion. The patterns observed were compared with the corresponding gag sequences from 6 small ruminant lentiviruses. The results obtained allowed the separation of 3 distinct groups. The restriction fragment profiles observed were different from those previously described.

  4. Analise elasto-acustica de casos axi-simetricas

    OpenAIRE

    Jose Nilton Martini

    1996-01-01

    Resumo: Neste trabalho estuda-se o problema elasto-acústico de cascas axisimétricas interagindo com fluido interior. Os modelos matemáticos para casca axi-simétrica, para fluido e para acoplamento são apresentados na forma de equações diferenciais. A partir das equações diferenciais são obtidas formas integrais associadas, utilizando o método dos resíduos ponderados. Assume-se uma solução harmônica para o problema. O Método dos Elementos Finitos, (MEF), aplicado as equações integrais, é utili...

  5. Development of a YouTube videos feelings analiser = Desarrollo de un analizador de sentimientos de videos de Youtube

    OpenAIRE

    Valle Salas, José Miguel del

    2018-01-01

    Nowadays, Youtube is one of the most successful social networks, therefore it has more and more impact in our society. Due to this it's quite useful to know the sentiments that this platform videos produces. This project has been focused in the development of a tool able to analise this sentiments, which could be used for di�erent purposes like Market studies or emotional learning for people who has some functional diversity. The technologies used during the project development has b...

  6. Balanço comercial numa analise quantitativa Trade balance in quantitative analysis

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    Martus Antonio Rodrigues Tavares

    1981-11-01

    Full Text Available Tentativa de comprovação da validade do modelo econométrico utilizado por Lemgruber no período 1965-1974. Procedeu-se ao teste do modelo, utilizando-se o período de 1965-1977 a fim de realizar a comprovação pretendida, face a nova conjuntura internacional de elevados preços do petróleo, de desvalorização do dólar frente às moedas de alguns países industrializados e de baixo crescimento da economia mundial, bem como das mudanças na política econômica de comércio exterior do Brasil. Procedeu-se também a um teste de modelo alternativo para melhor aplicação econométrica a conjuntura atual de comércio exterior. Ao final observou-se que os modelos estudados são suficientes para mostrar que a melhora do nosso balanço comercial está sujeita às variáveis externas como, renda mundial, preços de importações e exportações, não se desprezando também a variável interna — taxa de câmbio.Attempt to confirm the validity of the econometric model utilized by Lemgruber for the period 1965-1974. This model was applied to the period 1965-1977, in order to test it in the face of a new set of international crisis, such as the increase of petroleum prices, the devaluation of the dollar in relation to the currencies of other industrial countries, and the low growth-rate of the world economy, as well as in the face of the changes in Brazil's foreign economic policy. An alternative model was also tested for econometric applicability to the actual situation of foreign trade. It was observed, in the end, that the models studied sufficiently demonstrated that the improvement of our balance of trade is subject to such external variables as world income and import-export prices, as well as to the internal variable of exchange rate.

  7. Métodos de analise dos danos da lagarta da espiga¹, em médias de gerações envolvendo IAC Maya e Zapalote Chico Method for analysis of damage of the corn earworm heliothis zea in generation means from IAC Maya and Zapalote Chico

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    Jorge Alberto Marques Rezende

    1982-01-01

    utilizing the revised scale described by WIDSTROM (27. The data obtained was analised by two different ways. The grades were distributed at first in two different classes: grades 0 and 1 and grades > 2. The grades were afterwards distributed in the following two classes: grades 0 and grades > 1. The chi-square test was applied to verify which of the two types of classes adjusts better with their respective expected ratios. The results showed that when the grades were divided in the classes 0+1 and > 2 the data were more uniform within each treatment. The analysis of variance for each damage class separately, presented F values highly significant for the classes zero and zero plus one, whereas for the classes > 1 and > 2 the damage averages were very similar and the F values were not significant. The class zero plus one had F value higher and the coefficient of variation smaller than the class zero. The ZC 2451 corn compared to the variety IAC Maya XII, exibited good resistance to the corn earworm, under the field conditions of Campinas, State of São Paulo, Brazil. This resistance is of the type non preference and or antibiosis, because there was a higher percentage of ears of ZC 2451 free of earworm damage.

  8. Plantas medicinais usadas nos distúrbios do trato gastrintestinal no povoado Colônia Treze, Lagarto, SE, Brasil Medicinal plants used for aliments of the gastro-intestinal tract at Colonia Treze village, Lagarto Municipality, Sergipe State, Brazil

    Directory of Open Access Journals (Sweden)

    Maria Silene da Silva

    2006-12-01

    Full Text Available Os modelos de desenvolvimento sócio-econômicos adotados pela sociedade humana refletem diferentes formas de relacionamento com a natureza, as quais no paradigma vigente têm levado à grande perda de recursos naturais. Na esfera dessa relação, a conservação e preservação da biodiversidade da flora medicinal torna-se fundamental, pela importância que as plantas medicinais assumem como potencial genético para o desenvolvimento de novas drogas, e como acesso primário à saúde para muitas comunidades. Utilizando a abordagem etnofarmacológica na pesquisa de plantas medicinais, este trabalho teve por objetivo estudar as plantas medicinais utilizadas popularmente contra distúrbios do trato gastrintestinal no povoado Colônia Treze em Lagarto, SE, comunidade que tem o uso popular das plantas medicinais inserido em sua cultura. Sua metodologia abrangeu trabalho de campo na comunidade, adotando o método etnográfico qualitativo rápido. A amostra foi composta por líderes da comunidade, usuários de plantas e praticantes da medicina popular. Baseando-se nas indicações populares sobre o uso das plantas medicinais, selecionaram-se oito plantas que foram submetidas aos experimentos farmacológicos. As plantas testadas no Modelo de Trânsito Intestinal não produziram alteração na motilidade. Já as submetidas ao Modelo de Indução de Lesão Gástrica aguda, mostraram-se efetivas na atividade antiulcerogênica. A partir destes resultados propõem-se estratégias de desenvolvimento local para esta comunidade, que aliem a conservação da flora medicinal à melhoria de sua qualidade de vida.Models of socioeconomic development adopted by human societies reflect different ways of relating to Nature, which, given the present paradigm, have evolved towards great natural-resource loss. Within the sphere of this relationship, both the conservation and preservation of medicinal-plant biodiversity are fundamental because of the importance of

  9. Liberdade de afirmar-se sem religião: reflexo de transformações no Brasil contemporâneo / Freedom do declare you have no religion: reflex of transformations in contemporary Brazil

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    Denise dos Santos Rodrigues

    2011-05-01

    Full Text Available The census category of the without religion became representative of conscience of the individual liberties in a democratic State, where the individual feel free to face his religiousness as an intimate matter. Highlighted since 1960, the without religion, that reached 7,3% in 2000, congregate different types: atheists, agnostics and individuals with a peculiar religiosity. This constitution suggests not only an institutional crisis, but also ratifies the assimilation of the human rights, that guarantee the freedoms of conscience and religion.A categoria censitária dos sem religião tornou-se emblemática da consolidação do exercício das liberdades individuais em estado de direito democrático, onde o indivíduo sente-se livre para encarar sua religiosidade como questão de foro íntimo. Destacados desde 1960, os sem religião, que alcançaram 7,3% em 2000, congregam tipos distintos: de ateus e agnósticos até indivíduos com uma religiosidade particular. Esta constituição sinaliza não só uma crise institucional, mas ratifica a assimilação dos direitos humanos, garantindo as liberdades de consciência e religião

  10. Evaluation of wind power for electric power generation at Nossa Senhora da Gloria - Sergipe - Brazil; Avaliacao do potencial eolico para geracao de energia em Nossa Senhora da Gloria-SE, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Sobral, F.S.B.; Faccioli, G.G. [Nucleo de Estudos do Semi-Arido - NESA, Universidade Federal de Sergipe (UFS), Sao Cristovao SE (Brazil)

    2009-06-15

    The production of alternative energy can provide economic development and employment opportunities, especially in Rural areas. The work seeks as main objective the evaluation of the wind potential for generation of energy in Nossa Senhora da Gloria-SE. The values of the meteorological variables were obtained in stations automatic meteorological located in the municipal district. The statistical treatment for determination of the behavior of the winds in the researched municipal district was beacon in the calculation of averages, variances, distribution of frequencies and of the function of distribution of probability Rayleigh, case peculiar of the distribution Weibull, thoroughly diffused in studies of potential aeolian. These analyses allowed to extract all the information starting from the obtained gross data of the station and they were simulate in the software Statistica 7.0. The period of the day in that were registered to largest medium speeds it is the period of the afternoon understood between 12h00min and 18h00min for the municipal district of Nossa Senhora da Gloria-SE, being this period chosen for the simulations in software. (author)

  11. Direito à Educação no Brasil e dívida educacional: e se o povo cobrasse? Right to education in Brazil and the educational debt: what if the people actually demanded it?

    Directory of Open Access Journals (Sweden)

    Alceu Ravanello Ferraro

    2008-08-01

    Full Text Available Inicia-se tratando do direito à Educação no quadro dos direitos fundamentais da pessoa humana e do conceito de dívida educacional que decorre da não-realização do direito público subjetivo de cada cidadão e cidadã à Educação Fundamental completa, conforme estabelecido na Constituição de 1988. Utilizando como parâmetro a informação censitária sobre o número de anos de estudo concluídos com aprovação levantados no Censo 2000, estima-se que, nesse ano, o Estado brasileiro devia, aos 119,6 milhões de pessoas de 15 anos ou mais, a astronômica cifra de 325,5 milhões de anos de estudo não realizados na idade própria - uma média de quase três anos por pessoa. São projetados também os investimentos necessários em termos de professores e salas de aula/turno-ano para o resgate da dívida. Mostra-se ainda que a dívida estimada com base na Pesquisa Nacional por Amostra de Domicílios 2005 (316,4 milhões de anos de estudo devidos representa uma diminuição muito pequena em relação ao Censo 2000. Por fim, aborda-se a questão dos atores ou agentes da efetividade do direito à Educação e dos instrumentos de exigibilidade que a legislação põe à disposição desses mesmos agentes. Conclui-se afirmando que está posto aí, para a sociedade em geral e para educadores e educadoras em particular, o grande desafio de despertar nas pessoas humildes a consciência de que elas efetivamente têm direito à Educação e de que dispõem de meios para cobrar do Estado esse direito.We start by considering the right to Education within the framework of the fundamental human rights, and the ensuing concept of educational debt, which follows from the failure to enforce the subjective public right of each citizen to a complete Fundamental Education as established by the 1988 Brazilian Constitution. Based on the 2000 census information on the number of years of schooling successfully concluded, we estimate that in that year the Brazilian

  12. Why do the ithomiines (Lepidoptera, Nymphalidae aggregate? Notes on a butterfly pocket in central Brazil Por que os Ithomiinae (Lepidoptera, Nymphalidae se agregam? Observações sobre um bolsão de borboletas no Brasil central

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    Carlos E. G. Pinheiro

    2008-01-01

    Full Text Available This study provides information on the species composition and the number of butterflies in different phases of an ithomiine aggregation during the 2004 dry season in central Brazil, and tests some hypotheses concerning the pocket formation. The results obtained suggest that ithomiine pockets constitute primarily an adaptation of butterflies to the adverse climatic conditions of the dry season, such as high temperatures and low air relative humidity, rather than the occurrence of large concentrations of adult food resources (flowers visited for nectar were not found in the pocket site or defense against visually hunting predators (contrary to the prediction tested, the frequency of butterflies bearing birds beak marks on the wings significantly increased along the period of pocket formation, especially in the case of Mechanitis polymnia, the most abundant species in the pocket. Other hypotheses concerning the pocket formation are also discussed.Este trabalho apresenta dados sobre a composição de espécies e o número de indivíduos encontrados em diferentes fases de formação de um bolsão de Ithomiinae investigado na estação seca de 2004 em uma floresta de galeria do Brasil central, e testa algumas hipóteses relacionadas à formação do bolsão. Os resultados obtidos sugerem que o bolsão constitui primariamente uma adaptação das borboletas às condições adversas da estação seca, tais como altas temperaturas e baixa umidade relativa do ar, e não como conseqüência de grande concentração de recursos alimentares dos adultos (flores visitadas para obtenção de néctar não foram encontradas na área do bolsão, ou simples defesa contra predadores visualmente orientados (contrariamente à predição testada, a freqüência de borboletas apresentando marcas de bicadas de aves sobre as asas aumentou significativamente ao longo do período de formação do bolsão, especialmente no caso de Mechanitis polymnia, a borboleta mais

  13. Assessing the isotopic evolution of S-type granites of the Carlos Chagas Batholith, SE Brazil: Clues from U-Pb, Hf isotopes, Ti geothermometry and trace element composition of zircon

    Science.gov (United States)

    Melo, Marilane G.; Lana, Cristiano; Stevens, Gary; Pedrosa-Soares, Antônio C.; Gerdes, Axel; Alkmin, Leonardo A.; Nalini, Hermínio A.; Alkmim, Fernando F.

    2017-07-01

    The Carlos Chagas batholith (CCB) is a very large ( 14,000 km2) S-type granitic body formed during the syn-collisional stage of the Araçuaí orogen (southeastern Brazil). Zircons extracted from the CCB record a wide range of U-Pb ages (from 825 to 490 Ma), indicating a complex history of inheritance, magmatic crystallization and partial melting during the evolution of the orogeny. Magmatic zircons (ca. 578-588 Ma) are marked by similar Hf isotope compositions and REE patterns to those of inherited cores (ca. 825-600 Ma), indicating that these aspects of the chemical signature of the magmatic zircons have likely been inherited from the source. The U-Pb ages and initial 176Hf/177Hf ratios from anatectic and metamorphic zircon domains are consistent with a two-stage metamorphic evolution marked by contrasting mechanisms of zircon growth and recrystallization during the orogeny. Ti-in-zircon thermometry is consistent with the findings of previous metamorphic work and indicates that the two metamorphic events in the batholith reached granulite facies conditions (> 800 °C) producing two generations of garnet via fluid-absent partial melting reactions. The oldest metamorphic episode (ca. 570-550 Ma) is recorded by development of thin anatectic overgrowths on older cores and by growth of new anatectic zircon crystals. Both domains have higher initial 176Hf/177Hf values compared to relict cores and display REE patterns typical of zircon that grew contemporaneously with peritectic garnet through biotite-absent fluid partial melting reactions. Hf isotopic and chemical evidences indicate that a second anatectic episode (ca. 535-500 Ma) is only recorded in parts from the CCB. In these rocks, the growth of new anatectic zircon and/or overgrowths is marked by high initial 176Hf/177Hf values and also by formation of second generation of garnet, as indicated by petrographic observations and REE patterns. In addition, some rocks contain zircon crystals formed by solid

  14. Consequências da vasectomia: experiência de homens que se submeteram à cirurgia em Campinas (São Paulo, Brasil Consequences of vasectomy: experience of men who underwent the surgery in Campinas (São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Nádia Maria Marchi

    2011-09-01

    Full Text Available OBJETIVO: Descrever a experiência de homens vasectomizados há pelo menos um ano em serviços públicos de saúde de Campinas, Estado de São Paulo. Procedimentos metodológicos: estudo descritivo com um componente qualitativo e outro quantitativo. Para a etapa qualitativa, realizaram-se 10 entrevistas semiestruturadas com homens selecionados de acordo com critérios propositais de escolaridade e número de filhos. Em seguida, foi aplicado um formulário estruturado a 202 homens, sorteados a partir da lista completa daqueles que haviam sido vasectomizados entre 1998 e 2004. Realizou-se análise temática do conteúdo das entrevistas semiestruturadas. Os dados quantitativos foram digitados e foi realizada análise descritiva. RESULTADOS: Observou-se que 97% dos homens estavam satisfeitos por terem feito a cirurgia e poucos referiram efeitos indesejados. Entre os poucos homens insatisfeitos, apenas um havia feito a reversão da cirurgia porque vivia com uma nova companheira e queria ter filhos; entre os demais a insatisfação devia-se à dor provocada pelo procedimento cirúrgico. A maioria dos entrevistados atribuiu à vasectomia mudanças para melhor sobre sua saúde, corpo, relacionamento em geral com a família e com a esposa, na vida sexual e na situação econômica. Prevaleceu a ideia de que a vasectomia só trouxera benefícios. A possibilidade de arrependimento foi mencionada pelos entrevistados como algo que não aconteceria com eles. CONCLUSÃO: Os resultados deste estudo permitiram verificar que os homens que optam pela vasectomia tendem a ver o método como fator de mudanças positivas, principalmente sobre a vida sexual e o relacionamento com a companheira e a família em geral.OBJECTIVE: To describe the experience of men who had a vasectomy at least one year before at public healthcare services at Campinas, State of São Paulo. Methodological procedures: descriptive study with a qualitative and a quantitative component. In the

  15. Behavior of the vegetable crops section in three types of food retail stores in Campo Grande, Brazil Desempenho da seção de hortaliças em equipamentos varejistas de alimentos

    Directory of Open Access Journals (Sweden)

    Dario de O Lima-Filho

    2009-03-01

    Full Text Available The behavior of the fresh fruits and vegetable produce section was evaluated, under the point of view of the consumer, in three types of food retail stores in Campo Grande, Brazilian southeast: a grocery store ("quitanda", a supermarket, and an open-air market. A quantitative-descriptive survey was conducted with 120 individuals, responsible for purchasing fresh fruit and vegetable produce for their homes. To accomplish that, twelve variables were investigated and adapted from the parameters used in the SERVQUAL model, in which the attributes of the retail outlet are pointed out, such as store hygiene and cleanliness and manner by which produce is displayed; employee training traits, such as courtesy and helpfulness; and quality, price range, and variety of the produce for sale. The results reveal that shopping for grocery is done weekly; 80% of the shoppers interviewed do their shopping in supermarkets and 94% do theirs in open-air markets. The open-air market had the best results in the attributes for which they were evaluated when compared with the grocery store and the supermarket. The study also points out that the older the shopper the more often he/she does grocery shopping.Neste estudo foi avaliado, sob o ponto de vista do consumidor, o desempenho da seção de hortaliças em três equipamentos varejistas de alimentos em Campo Grande(MS: uma mercearia (quitanda, um supermercado e uma feira-livre. Foi realizada uma pesquisa quantitativo-descritiva com 120 indivíduos, responsáveis pelas compras de hortaliças para suas residências. Para tanto, foram investigadas doze variáveis adaptadas das dimensões do modelo SERVQUAL, onde se destacam os atributos do equipamento varejista como higiene e limpeza da loja e exposição dos produtos; capacitação dos funcionários como atendimento e cortesia; e atributos do produto como qualidade, variedade e preço. Os resultados mostram que as compras de hortaliças são realizadas semanalmente

  16. Ondersoek na ’n teoretiese onderskraging van boekkuns: Die toepassing van Bakhtin se dialogisme en heteroglossia op geselekteerde voorbeelde van kunstenaarsboeke

    Directory of Open Access Journals (Sweden)

    David Paton

    2012-11-01

    Full Text Available Onlangse navorsingsprojekte en konferensies oor boekkuns het gereageer op Johanna Drucker se oproep in 2005 dat noodsaaklike navorsingswerk gedoen moet word om ’n deegliker teoretiese basis vir die terrein van boekkunsproduksie te vestig. Die deelname van kunstenaars en ander praktisyns van boekkuns veroorsaak dat gesprekke en besprekings noodwendig en voorspelbaar neig na die praktyk en weg van die teorie. In die lig van die behoefte aan die bepaling van ’n toepaslike visie waarvolgens die kunsboek meer eksplisiet, ook teoreties, ondersoek kan word, ondersoek hierdie artikel Stéphane Mallarmé en Marcel Broodthaers se Un coup de dés publikasies, Buzz Spector se simplifiserende Marcel Broodthaers, Ulises Carrion se For fans and scholars alike, en Helen Douglas en Telfer Stokes se Real fiction. Hierdie spesifieke voorbeelde, en hulle onderlinge verbande en dialoog met mekaar, word ondersoek vanuit die perspektief van die Russiese filosoof en literêre teoretikus Mikhail Bakhtin se werk oor dialogisme en heteroglossia (‘ander-tongigheid’. Hierdie begrippe demonstreer die dialogiese, multivokale en veeltongige wisselwerking tussen en binne historiese werke as kultuuruitings. Deur die analise toon ek aan dat hierde begrippe toepaslike en funksionele raamwerke uitmaak vir die analise van spesifieke aspekte wat die teenwoordigheid van kunstenaarsboeke aankondig in die wêreld: selfbewustheid en omvattende diskoers wat wederkerend toepaslik is. Ek stel voor dat Bakthin se idees oor dialogisme en heteroglossie gebruik word as die teoretiese begronding van die kunstenaarsboek as ’n dinamiese visuele taal wat in ’n netwerk van ander tekste staan en deel is van die proses van die eindelose herbeskrywing van die wêreld.

  17. Magmatic microgranular enclaves of the northeast of Mato Grosso, Brazil, SE Amazonian Craton: Insights into the magmatism of the Uatumã Supergroup on the basis of field and petrological data

    Science.gov (United States)

    Tarelow Neto, João; Pierosan, Ronaldo; Barros, Márcia Aparecida de Sant'Ana; Chemale, Farid, Jr.; Santos, Fernanda Silva

    2017-10-01

    Felsic and mafic microgranular enclaves occurs hosted in Paleoproterozoic felsic volcanic and plutonic rocks of the Iriri Group and Rio Dourado Intrusive Suite that crop out in the northeast of the Brazilian state of Mato Grosso as part of the Uatumã Supergroup in the SE Amazonian Craton. The volcanic rocks consist of dacites, rhyolites and ignimbrites of the Iriri Group among which dacites yielded a crystallization age of 1895 ± 7 Ma. The granitoids are composed of syenogranites, and monzogranites along with subordinate granodiorites. The granite pluton of syenogranite composition belongs to the Rio Dourado Intrusive Suite and was previously dated at 1876 ± 39 Ma. Mafic enclaves show petrographic features that suggest magma mingling processes and may be classified as olivine-clinopyroxene gabbro, clinopyroxene-hornblende gabbro, biotite-clinopyroxene diorite, biotite-hornblende diorite, and biotite-quartz diorite. Geochemical patterns of dioritic enclaves fit with those of the mafic rocks of the Santa Inês Intrusive Suite and suggest that they are comagmatic. The felsic enclaves consist of quartz monzonites, monzogranites and quartz-rich granitoids, with geochemical patterns and ages compatible with those of the Iriri Group. U-Pb dating of a granodioritic enclave hosted by a syenogranite of the Rio Dourado Intrusive Suite yielded three distinct ages: a Paleoproterozoic magmatic age around 1.87 Ga; a Paleoproterozoic inherited age of 2001 ± 7 Ma; and Neoarchean inherited ages ranging from 2512 to 2767 Ma. The felsic enclaves may have been derived from crustal melts, and contain restitic zircon grains, or chilled margins with zircon removed from the wall rocks. The recognition of diverse geochemical patterns of felsic and mafic enclaves suggests that the study area can represent the top of a shallow complex magma chamber that experienced a number of different replenishment events from diverse sources. The mafic enclaves and their coeval enclosing volcanic rocks

  18. Brazil`s mineral policy

    Energy Technology Data Exchange (ETDEWEB)

    Filho, C.A.V. [Pinheiro Neto-Advogados, Brasilia (Brazil)

    1997-06-01

    Brazil is a large producer of many minerals, with a favourable regulatory framework, tax policy and foreign investment legislation. Although there are strict environmental requirements, mining ventures can cope with them and they represent no obstacle to mining activities. Efficient regulatory agencies are in place, such as the Department of Mines (DNPM) and the Geological Survey (CPRM). The Brazilian mineral policy is set out in a number of different documents, the more important being the Federal Constitution and the Mining Code. Important constitutional amendments have been recently passed, so as to open Brazil`s economy to foreign investments.

  19. Passa-se uma engenhoca: ou como se faziam transações com terras, engenhos e crédito em mercados locais e imperfeitos (freguesia de Campo Grande, Rio de Janeiro, séculos XVIII e XIX 'Engenhocas' to sell!: or lands, sugar mills and credit’s trade in local and imperfect markets (Campo Grande civil parish, Rio de Janeiro, Brazil, XVIII-XIX centuries

    Directory of Open Access Journals (Sweden)

    Manoela Pedroza

    2010-06-01

    Full Text Available A questão central deste artigo é perceber como as hierarquias sociais e as políticas específicas do Antigo Regime nos Trópicos se refletiram em estratégias concretas, e compreender as engrenagens locais de um mercado imperfeito. Analisaremos as escolhas e trajetórias de agentes envolvidos em transações com terras, engenhos e concessão de crédito na freguesia de Campo Grande, no correr do século XVIII até o início do XIX, cuja especificidade foi conseguirem reproduzir sua condição senhorial. Metodologicamente, partimos da microanálise e compusemos redes sociais locais que sustentaram as estratégias dos agentes em questão. Propomos que as rendas criadas a partir das vendas a prazo, os vínculos pessoais entre compradores-credores-vendedores-devedores nas vendas dos engenhos e a sobreposição de vínculos de dependência locais foram fatores que possibilitaram a acumulação econômica e a reprodução ampliada da condição senhorial.Using the concept of ‘Ancien Régime on the Tropics’, this article aims to investigate how social hierarchies and politics in Brazil, during the 18th century, reflected into concrete local strategies. Our objective is to understand the gadgets of an imperfect market, based on agents’ choices who were all involved in lands, sugar mills and credit commercial transactions in the Campo Grande civil parish, in the Rio de Janeiro. All agents had gotten to reproduce its extended senhorial condition. Our methodology is based on microanalysis, so we composed local social nets we guest had supported the agents’ strategies in question. We consider strategies to achieve long term incomes; bonds between purchaser, creditor, salesman and debtors (both involving sugar mills commercial transactions; the overlapping of dependence bonds by strategic exchanges created by sugar mill masters among consanguineous, matrimonial and fictitious relatives had been factors that made possible the economic accumulation

  20. Contenha-se, se for capaz

    Directory of Open Access Journals (Sweden)

    Mirna Feitoza Pereira

    2008-11-01

    Full Text Available Em O Instinto da Linguagem, Steven Pinker discorre sobre sua célebre tese: a linguagem não é a mais prodigiosa invenção cultural humana. Ela é uma peça da constituição biológica do cérebro. A linguagem é uma habilidade complexa e especializada, que se desenvolve espontaneamente na criança, sem qualquer esforço consciente ou instrução formal, que se manifesta sem que se perceba sua lógica subjacente, que é qualitativamente a mesma em todo indiví­duo, e que difere de capacidades mais gerais de processamento de informações ou de comportamento inteligente. Para Pinker, a concepção de linguagem como um tipo de instinto transmite a idéia de que as pessoas sabem falar mais ou menos da mesma maneira que as aranhas sabem tecer suas teias. Ele apóia suas idéias em Darwin e Chomsky. Palavras-chave linguagem, gramática universal, evolução Abstract In Language Instinct, Steven Pinker argues about his famous thesis: language is not the most prodigious human cultural invention. It is a distinct piece of the biological constitution of the brain. Language is a complex, specialized skill, which develops spontaneously in the child, without conscious effort or formal instruction. It reveals itself without awareness of its underlying logic, which is qualitatively the same in every individual, and which is distinct from more general abilities of information processing of intelligent behavior. According to Pinker, the conception of language as a kind of instinct conveys the idea that people know how to talk in more or less the same way as spiders know how to spin webs. His thesis is founded in Darwin and Chomsky-s theories. Keywords language, universal grammar, evolution

  1. Characterization of the Brazilian continental shelf adjacent to Rio Grande do Norte state, NE Brazil

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    Helenice Vital

    2010-01-01

    Full Text Available This study focuses on the analysis of high-resolution seismic profiles, integrated with sedimentological, echosounder, SRTM and satellite image datasets, of the Brazilian continental shelf adjacent to the Rio Grande do Norte State, NE Brazil. Located in the northeast of Brazil, the State of Rio Grande do Norte is bounded by two main coastal and shelf systems: the eastern coastal-shelf, from the Sagi River to the Touros High, and the northern coastal-shelf, extending from Touros High to Tibau. This shelf represents a modern, highly dynamic mixed carbonate-siliciclastic system characterized by reduced width and shallow depths as compared with other parts of the Brazilian shelf. It has an average width of 40 km, the shelf-break lying at a depth of ~ 60 m. This shelf is subject to the full strength of the westerly South Equatorial current combined with high winds and moderate to high tides and waves. A sharply defined stratigraphic boundary, probably between the Pleistocene and Holocene deposits, is clearly to be observed in the seismic record. Incised-valleys extending from the main river mouths (e.g.the Potengi, Açu, and Apodi to the shelf break dominate the area investigated and may indicate periods of lower sea level.Este estudo está direcionado ao conhecimento da plataforma continental brasileira adjacente ao Estado do Rio Grande do Norte, NE do Brasil, através da analise de perfis sismicos de alta resolução integrados a dados sedimentológicos, batimétricos, SRTM e imagens de satélites. O Estado do Rio Grande do Norte, localizado no nordeste do Brasil, apresenta dois sistemas costeiros-plataformais: Setor Este, do Rio Sagi (divisa PB-RN ao Alto de Touros e Setor Norte, do Alto de Touros a Tibau (divisa RN-CE. Esta plataforma representa um sistema plataformal moderno misto (carbonático-siliciclástico, altamente dinâmico. É caracterizado por sua reduzida largura e águas rasas, quando comparado com outras partes da plataforma

  2. A bibliometria na pesquisa científica da pós-graduação brasileira de 1987 a 2007The bibliometrics in theses and dissertations produced in Brazil (1987-2007

    Directory of Open Access Journals (Sweden)

    Ronaldo Ferreira Araújo

    2011-05-01

    Full Text Available A bibliometria, como área de estudo da ciência da informação, tem um papel relevante na análise da produção científica de um país, uma vez que seus indicadores retratam o grau de desenvolvimento de uma área do conhecimento de um campo científico ou de saber. O artigo verifica a inserção dos estudos bibliométricos na pesquisa científica da pós-graduação no Brasil a partir da analise de teses e dissertações que abordaram aspectos de estudos bibliométricos. Como fundamentação, discutiu-se a bibliometria e suas relações com a cienciometria. Foram analisados 82 trabalhos publicados no período de 1987 a 2007; chegou-se a esse universo após levantamento junto ao Banco de Teses da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes. Trata-se de um estudo quantitativo-descritivo, no qual se verifica o uso da bibliometria para estudos de campos científicos a partir das variáveis: ano, instituição, região geográfica, nível (mestrado ou doutorado, área do conhecimento e orientação. Os resultados apontam uma retomada mais do que significativa no estudo da temática, tendo 2007 como o ano de maior produção. Revela ainda uma multiplicidade na produção, que demonstra o interesse pela abordagem bibliométrica nas várias áreas de conhecimento no Brasil, ensejando análises sobre a interdisciplinaridade entre ciência da informação e outros campos de conhecimento.This paper seeks to identify and analyze the use of bibliometrics in theses and dissertations produced in Brazil. Data taken from the theses database of the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes, from 1987 to 2007 have found 82 works as universe of analysis. The works have been distributed by year, institution, graduate course level (doctor/master, area of knowledge and advisors. The results indicate a renewed interest for bibliometric studies, show a growth in the Brazilian production and interest in this

  3. Esporotricose urbana: epidemia negligenciada no Rio de Janeiro, Brasil Urban sporotrichosis: a neglected epidemic in Rio de Janeiro, Brazil

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    Margarete Bernardo Tavares da Silva

    2012-10-01

    Full Text Available Na literatura científica, a esporotricose esteve associada por anos a profissionais que lidam com a terra, local onde o fungo causador habita. Recentemente, numa área urbana tem sido registrada a ocorrência relacionada à transmissão zoonótica. Este trabalho objetivou contribuir para o conhecimento sobre a esporotricose em área urbana, por intermédio da analise exploratória de sua distribuição socioespacial no Rio de Janeiro, Brasil, entre 1997 e 2007, identificando os espaços de transmissão mais intensos. Utilizando-se base de dados do Serviço de Vigilância em Saúde, Instituto de Pesquisa Clínica Evandro Chagas, Fundação Oswaldo Cruz, foram realizadas análises de frequência da doença e sua distribuição espacial. No período estudado, foram registrados 1.848 casos de esporotricose, com predomínio em mulheres adultas fora do mercado de trabalho. A fonte de contaminação predominante foi ferimento causado pelo gato doméstico, o que contribuiu para a disseminação da esporotricose em área urbana. O georreferenciamento de 1.681 casos evidenciou um cinturão de transmissão ao longo da divisa entre a capital e os municípios da região metropolitana.In the scientific literature, sporotrichosis has traditionally been associated with agricultural work, since the causative agent is found naturally in the soil. However, cases have been reported recently in an urban area, related to zoonotic transmission. The current study aimed to contribute to knowledge on sporotrichosis in an urban area through an exploratory analysis of its socio-spatial distribution in Rio de Janeiro, Brazil, from 1997 to 2007, identifying the areas with the heaviest transmission. The database from the Health Surveillance Service at the Evandro Chagas Institute for Clinical Research, Oswaldo Cruz Foundation, was used to estimate incidence rates and spatial distribution. During the study period, 1,848 cases of sporotrichosis were reported, predominantly in

  4. SE-VYZ

    International Nuclear Information System (INIS)

    Anon

    2004-01-01

    On this CD compact disc 6 video-films (A-1 NPP; Bituminization; Cementation; Pressing; The Interim spent fuel storage facility; Transport into the National radioactive waste repository Mochovce; Ignition; and Vitrification). In these films process of radioactive waste treatment in the Bohunice Radioactive Waste Processing Center (SE-VYZ) is presented. 2 presentations about radioactive wastes treatment in the SE-VYZ are included

  5. SE-FIT

    Science.gov (United States)

    Chen, Yongkang; Weislogel, Mark; Schaeffer, Ben; Semerjian, Ben; Yang, Lihong; Zimmerli, Gregory

    2012-01-01

    The mathematical theory of capillary surfaces has developed steadily over the centuries, but it was not until the last few decades that new technologies have put a more urgent demand on a substantially more qualitative and quantitative understanding of phenomena relating to capillarity in general. So far, the new theory development successfully predicts the behavior of capillary surfaces for special cases. However, an efficient quantitative mathematical prediction of capillary phenomena related to the shape and stability of geometrically complex equilibrium capillary surfaces remains a significant challenge. As one of many numerical tools, the open-source Surface Evolver (SE) algorithm has played an important role over the last two decades. The current effort was undertaken to provide a front-end to enhance the accessibility of SE for the purposes of design and analysis. Like SE, the new code is open-source and will remain under development for the foreseeable future. The ultimate goal of the current Surface Evolver Fluid Interface Tool (SEFIT) development is to build a fully integrated front-end with a set of graphical user interface (GUI) elements. Such a front-end enables the access to functionalities that are developed along with the GUIs to deal with pre-processing, convergence computation operation, and post-processing. In other words, SE-FIT is not just a GUI front-end, but an integrated environment that can perform sophisticated computational tasks, e.g. importing industry standard file formats and employing parameter sweep functions, which are both lacking in SE, and require minimal interaction by the user. These functions are created using a mixture of Visual Basic and the SE script language. These form the foundation for a high-performance front-end that substantially simplifies use without sacrificing the proven capabilities of SE. The real power of SE-FIT lies in its automated pre-processing, pre-defined geometries, convergence computation operation

  6. Expectativas positivas com o uso de álcool e o beber se embriagando: diferenças de gênero em estudo do Projeto GENACIS, São Paulo, Brasil Positive expectations towards alcohol use and binge drinking: gender differences in a study from the GENACIS project, São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Mariana Braga Cavariani

    2012-07-01

    Full Text Available O objetivo deste trabalho foi investigar as expectativas de homens e mulheres com relação ao uso do álcool e a associação dessas com o comportamento de beber com embriaguez. Foi realizado inquérito epidemiológico, domiciliar, transversal, de base populacional, com amostra probabilística estratificada por conglomerados, na Região Metropolitana de São Paulo, Brasil. Foram entrevistadas 2.083 pessoas de ambos os sexos utilizando-se o questionário GENACIS (Gender, Alcohol and Culture: An International Study. Beber com embriaguez foi considerada variável dependente, e foram construídos modelos de regressão logística para cada sexo, ajustando-se os modelos para idade, escolaridade e renda. Todas as expectativas, exceto achar mais fácil falar com companheiro, associaram-se ao comportamento de beber com embriaguez. Nosso estudo mostrou que beber com embriaguez pode estar associado a expectativas com uso do álcool. Compreender essas expectativas pode contribuir para elaboração de estratégias mais efetivas de prevenção do beber excessivo.The objective was to investigate expectations towards alcohol use among men and women and the association between these expectations and binge drinking (or heavy episodic drinking. An epidemiological cross-sectional population-based household survey with a stratified probabilistic sample was conducted in Greater Metropolitan São Paulo, Brazil. Males and females were interviewed (n = 2,083 with the GENACIS questionnaire (Gender, Alcohol, and Culture: an International Study. The dependent variable was binge drinking, and logistic regression models were constructed for each gender, adjusting for age, schooling, and income. All expectations, with the exception of increased ease in talking with one's partner, were associated with binge drinking. The study shows that binge drinking can be associated with expectations towards alcohol use. Understanding such expectations can contribute to the design of

  7. Phosphorus fractionation distribution in Guapimirim estuary: SE Brazil.

    Science.gov (United States)

    Vicente, Michel Arthur Faria; de Melo, Gustavo Vaz; Baptista Neto, José Antonio; de Oliveira, Allan Sandes

    2016-01-01

    The Guapimirim estuary is the main tributary of Guanabara bay and is located in the northeast portion. Although it is protected, this estuary has been experiencing strong anthropogenic pressure, which has led to changes in the natural characteristics. Large amounts of sewage are dumped into the bay through tributaries, thereby changing the water and bottom sediment quality. One of the main elements of sewage is phosphorus. Despite its importance to life, a high concentration of this nutrient in the environment can result in eutrophication. This work describes the phosphorus distribution in its different fractions in the bottom sediment at 16 stations located in the main channel of the Guapimirim estuary. These results are correlated with data on grain size, organic matter and calcium carbonate content in the bottom sediment and with physicochemical parameters of the bottom water. The grain size decreases toward the mouth of the estuary, whereas the organic matter and carbonate content increase. The salinity increases significantly at 3.5 km upstream from the mouth, where there is also a notable increase in fine sediments; the same site is the mean position of the salinity front. The temperature and pH increase in the same direction. The Pinorg-total ranges between 3.18 and 7.13 µmol g(-1), increasing toward the mouth. The same trend is observed for the other phosphorus fractions P-Ca, P-Fe and P-f.a., which range from 0.68 to 1.91, 0.79 to 1.71 and 0.03 to 0.93 µmol g(-1), respectively. The P-Ca and P-Fe fractions are the most representative in the Pinorg-total, occurring at 26.3 and 26.0 %, respectively.

  8. A literatura se ensina?

    Directory of Open Access Journals (Sweden)

    Teresa Cristina Cerdeira

    2004-03-01

    Full Text Available Não sei se, na verdade, se ensina literatura. Mas qualquer coisa que se parecer com isto – ensinar literatura – tem que nascer de uma vibração conjunta de quem mostra e de quem vê pela primeira vez. Caminhar junto e descobrir sempre que as malhas do texto são infinitas. Venho portanto falar de sala de aula e de seminário, de circulação de saberes e de desejos, de uma atenção ao corpo sensível do texto que deve impactar, comprometer a linearidade da percepção, desalojar os sentidos prévios, encantar, seduzir, entendida a palavra em seu sentido primeiro de desviar do caminho. Venho falar de uma fala sem autoritarismo que, para lembrar Barthes no seu belíssimo ensaio – “Au séminaire” (no Seminário ou para o Seminário, como se quiser, nessa deliciosa anfibologia da preposição francesa – é basicamente maternal. A maternagem, segundo Barthes, é essa forma generosa de ensinar em que a mãe não se põe a explicar ao filho como se anda; também não anda na frente para que ele a imite, simplesmente se afasta, abre os braços e espera. Será talvez esta uma possível forma de ensinar literatura. 

  9. SE debt restructuring plan

    International Nuclear Information System (INIS)

    Janoska, J.

    2003-01-01

    Slovenske elektrarne, a.s. (SE) plans to restructure one's own debts in 2003-2005. Debt restructuring plan is following: 2003: Collection of pre-payment on electricity - 60 million Euro (2.5 billion Slovak crowns), consumer unknown. Own promissory notes in total value of 100 million US$ (3.5 billion Slovak crowns) - in process. Sale of claims worth 2.4 billion Slovak crowns (57.21 million Euro) - negotiations in process. 2003/2004: Restructuring of loans payable IV. quarter 2003 and at the beginning of 2004 in value of 200 million Euro (8.3 billion Slovak crowns). Aim of SE is a new credit payable within 7 years, with instalments payable in the last two to three without any state subsidies. 2005: Loans worth 460 million Euro (189 billion Slovak crowns) will still remain. SE want to negotiate them with banks without state support

  10. Autismos que se 'curan'

    OpenAIRE

    Artigas, Josep, 1948-; Paula Pérez, Isabel, 1970-

    2016-01-01

    Introducción. La investigación sobre el autismo, basada principalmente en el modelo categórico del Manual diagnóstico y estadístico de los trastornos mentales, se ha centrado de forma preferente en la epidemiología, las manifestaciones clínicas, los mecanismos cognitivos y los determinantes biológicos y ambientales; sin embargo, se ha prestado escaso interés a las trayectorias evolutivas, las cuales son decisivas de cara al pronóstico a medio y largo plazo. Objetivo. Revisar el curso evolutiv...

  11. Natural variation of selenium in Brazil nuts and soils from the Amazon region.

    Science.gov (United States)

    Silva Junior, E C; Wadt, L H O; Silva, K E; Lima, R M B; Batista, K D; Guedes, M C; Carvalho, G S; Carvalho, T S; Reis, A R; Lopes, G; Guilherme, L R G

    2017-12-01

    Brazil nut tree (Bertholletia excelsa) is native of the Amazon rainforest. Brazil nuts are consumed worldwide and are known as the richest food source of selenium (Se). Yet, the reasoning for such Se contents is not well stablished. We evaluated the variation in Se concentration of Brazil nuts from Brazilian Amazon basin, as well as soil properties, including total Se concentration, of the soils sampled directly underneath the trees crown, aiming to investigate which soil properties influence Se accumulation in the nuts. The median Se concentration in Brazil nuts varied from 2.07 mg kg - 1 (in Mato Grosso state) to 68.15 mg kg - 1 (in Amazonas state). Therefore, depending on its origin, a single Brazil nut could provide from 11% (in the Mato Grosso state) up to 288% (in the Amazonas state) of the daily Se requirement for an adult man (70 μg). The total Se concentration in the soil also varied considerably, ranging from <65.76 to 625.91 μg kg - 1 , with highest Se concentrations being observed in soil samples from the state of Amazonas. Se accumulation in Brazil nuts generally increased in soils with higher total Se content, but decreased under acidic conditions in the soil. This indicates that, besides total soil Se concentration, soil acidity plays a major role in Se uptake by Brazil nut trees, possibly due to the importance of this soil property to Se retention in the soil. Copyright © 2017 Elsevier Ltd. All rights reserved.

  12. Estimativa do custo de implantação de sistema de terraceamento, utilizando-se o sistema de informações geográficas. estudo de caso: Bacia do Rio Caxangá, PR Estimate of the establishment cost of a terracing sistem using geographical information sistems. case study: Caxanga river watershed, Parana State, Brazil

    Directory of Open Access Journals (Sweden)

    Nori Paulo Griebeler

    2000-01-01

    Full Text Available O presente estudo foi realizado com o propósito de estimar o custo de implantação de sistema de terraceamento para a bacia hidrográfica do Rio Caxangá, localizada no noroeste dO Estado do Paraná utilizando-se, para isTo, um sistema de informações geográficas, SIG. O espaçamento entre terraços foi obtido considerando-se o tipo, uso e manejo do solo e a declividade do terreno. Para a estimativa do espaçamento entre terraços foram utilizadas as equações propostas por Bertoni, Bentley e Lombardi Neto. A bacia estudada apresentou 91,0% da área total com declividade menor que 8,0%, caracterizando uma região com pequeno risco de erosão. As equações propostas por Bertoni e por Lombardi Neto estimaram custos de implantação em torno de 10,8 e 35,0%, respectivamente, mais baixos quando comparadas com a equação proposta por Bentley. A utilização do SIG possibilitou uma boa caracterização da região, podendo ser utilizada como importante ferramenta em estudos de conservação de solo e do meio ambiente.This study was conducted in order to estimate the establishment cost of terracing system in the Caxanga River watershed, in the northwest of Parana State, Brazil, using GIS (Geographical Information Systems. Terrace spacing was obtained by considering soil type, use, management and SLONE, using Bertoni, Bentley and Lombardi Neto equations. The studied watershed showed 91.0% of its whole area with a slope under 8.0%, which characterizes the region with low risk of erosion. The equations proposed by Bertoni and Lombardi Neto estimated establishment costs about 10.8 and 35.0%, respectively, lower than that obtained by using Bentley equation. A good characterization of the studied region was possible with GIS, therefore it may be used as an important tool in soil conservation and environment studies.

  13. Se min kjole

    DEFF Research Database (Denmark)

    Bogen Se min kjole udkom i anledning af 50-året for de første ordinationer af kvindelige præster i den danske folkekirke i 1948. Bogen giver analyser af, hvad kvindelige præster har betydet for præsterollen og for prædikengenren; den fortæller om de første kvindelige præsters liv og syn på forkyn...

  14. Sm2Se3-PbSe system

    International Nuclear Information System (INIS)

    Shafagatova, G.G.; Nasibov, I.O.; Sultanov, T.I.; Rustamov, A.G.; Rustamov, P.G.

    1979-01-01

    The method of differential, X-ray phase microstructure analyses, and also microhardness and density measurements are used to study the system Sm 2 Se 3 -PbSe, and its state diagram has been constructed for the first time. It represents a quasi-binary cross section of the ternary system Sm-Pb-Se. It has been found that two new compounds, Sm 2 PbSe 4 and Sm 2 Pb 4 Se 7 , are formed in the system Sm 2 Se 3 -PbSe, of which the latter is peritectic. The region of PbSe-base α-solid solutions goes up to 6 mole%

  15. Analysis of the microturbine combustion chamber by using the CHEMKIN III computer code; Analise da camara de combustao de microturbinas empregando-se o codigo computacional CHEMKIN III

    Energy Technology Data Exchange (ETDEWEB)

    Madela, Vinicius Zacarias; Pauliny, Luis F. de A.; Veras, Carlos A. Gurgel [Brasilia Univ., DF (Brazil). Dept. de Engenharia Mecanica]. E-mail: gurgel@enm.unb.br; Costa, Fernando de S. [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Lab. Associado de Combustao e Propulsao]. E-mail: fernando@cptec.inpe.br

    2000-07-01

    This work presents the results obtained with the simulation of multi fuel micro turbines combustion chambers. In particular, the predictions for the methane and Diesel burning are presented. The appropriate routines of the CHEMKIN III computer code were used.

  16. Tecnologia de informação nas Agencias de Turismo: uma analise de como as agencias estão utilizando esse recurso para se manter competitiva

    Directory of Open Access Journals (Sweden)

    Gomes de Moraes, Adriana

    2007-01-01

    Full Text Available The development of technology of information for trade of tourism especially the travel agency and hotel undertaking are going one instrument fundamental for competitive require actually. The present study to pretend identify which are the types technology of information are use for travel agency that surround the micro region of associate of cities the region of foz the river Itajai (Amfri and what form are used for travels agents for competitive vantage. The method used went the research of descriptive. Conclude in this research that the travel agent understand to get TI enough for to maintain competitive in the market however we believe that use every types of technology for the sector go back every days indispensable for to maintain in the actual market

  17. Variabilidade genética de etnovariedades de mandioca em regiões geográficas do Brasil Genetic variability of landraces of cassava in geographical regions of Brazil

    Directory of Open Access Journals (Sweden)

    Maria Inez Fernandes Faraldo

    2000-09-01

    Full Text Available O manejo empregado nas roças de agricultura autóctone, utilizando etnovariedades de mandioca (Manihot esculenta Crantz, apresenta papel de destaque na conservação in situ dos recursos genéticos. O presente trabalho teve por objetivo analisar a distribuição da variabilidade genética de 141 etnovariedades de mandioca coletadas em roças de diferentes regiões geográficas do Brasil, através de marcadores isoenzimáticos, revelados a partir de eletroforese em gel de amido. Foram avaliados 11 sistemas isoenzimáticos. Dos 15 locos polimórficos analisados a heterozigosidade média observada foi de 0,354. A estimativa coeficiente de diferenciação genética G ST apresentou valor médio de 8,80% da variabilidade genética entre as regiões. Na análise de agrupamento, observou-se a formação de 3 grupos distintos; o primeiro formado pelas roças originadas da Região Amazônica; o segundo constituído pelas roças do Estado de São Paulo; e o terceiro composto pelas roças originadas da Reserva Indígena do Xingu. A maior parte da variabilidade genética das etnovariedades de mandioca revelou-se concentrada dentro das regiões geográficas, confirmando as pressuposições existentes no modelo de dinâmica evolutiva para a espécie.The management practices used in authoctonous agriculture with landraces of cassava (Manihot esculenta Crantz play an important role in the in situ conservation of genetic resources. The objective of this work was to analyze the genetic variability present in 141 landraces of cassava, collected in gardens of different geographical regions of Brazil using isozyme techniques visualized by starch gel electrophoresis. Eleven enzymatic systems were analised. Of the 15 polymorphic loci evaluated the observed mean heterozigosity was 0.354. G STestimates presented a value of 8.80% for the genetic variability between regions. In cluster analysis, three distinct groups were observed: the first group was formed by the

  18. Mercúrio total em cabelos: uma contribuição para se avaliar o nível de exposição em Poconé, Mato Grosso, Brasil Total mercury in hair: a contribution to the evaluation of mercury exposure levels in Poconé, Mato Grosso, Brazil

    Directory of Open Access Journals (Sweden)

    Flávia Nogueira

    1997-10-01

    Full Text Available Ocorrem na Bacia do Rio Bento Gomes (MT, às margens do Pantanal Mato-grossense, cerca de sessenta garimpos de ouro, onde o mercúrio é utilizado de forma intensiva nos processos de produção, através da formação de amálgamas que facilitam a aglutinação de partículas finas. A queima do amálgama nem sempre é feita em sistemas fechados de recuperação, havendo, portanto, perda de vapor para a atmosfera. Este estudo traz resultados de análises de mercúrio total nos cabelos de quatro grupos de voluntários que vivem em Poconé (MT, e faz uma caracterização geral do ambiente no que se refere à presença do metal na água e no sedimento do Rio Bento Gomes. Um equipamento de detecção por fluorescência foi usado para a determinação das concentrações, e os resultados indicam que os valores são mais baixos do que os de outras populações de áreas de garimpo no Brasil. Indicam também que a via ocupacional parece ser a mais eficiente rota potencial de contaminação da população por mercúrio.There are some 60 gold-mining sites in the Bento Gomes River basin (Mato Grosso, at the border of the Mato Grosso Pantanal (Swamp, where mercury is used to agglutinate fine gold particles through amalgamation. During burning of the amalgam to release the gold, mercury vapor is lost to the atmosphere, since closed systems for mercury recovery are not always used. This study shows the results of total mercury analysis in hair from four volunteer groups living in Poconé, Mato Grosso, and presents a general environmental description pertaining to the presence of mercury in water and sediments from the Bento Gomes River. Atomic fluorescence was used for measuring mercury concentrations. The results were lower than for other populations from gold-mining areas in Brazil.

  19. ZnSe/ZnSeTe Superlattice Nanotips

    Directory of Open Access Journals (Sweden)

    Young SJ

    2010-01-01

    Full Text Available Abstract The authors report the growth of ZnSe/ZnSeTe superlattice nanotips on oxidized Si(100 substrate. It was found the nanotips exhibit mixture of cubic zinc-blende and hexagonal wurtzite structures. It was also found that photoluminescence intensities observed from the ZnSe/ZnSeTe superlattice nanotips were much larger than that observed from the homogeneous ZnSeTe nanotips. Furthermore, it was found that activation energies for the ZnSe/ZnSeTe superlattice nanotips with well widths of 16, 20, and 24 nm were 76, 46, and 19 meV, respectively.

  20. Analysis of mercury and selenium in biological samples by neutron activation analysis; Analise de mercurio e selenio em materiais biologicos pelo metodo de analise por ativacao com neutrons

    Energy Technology Data Exchange (ETDEWEB)

    Catharino, Marilia Gabriela Miranda

    2002-07-01

    In the present work, hair samples from populations suspected of contamination by mercury, in the localities of Serra do Navio, Vila Nova and Tartarugalzinho, in the State of Amapa, were analyzed. Hair samples of children under odontopediatric treatment were also analyzed for mercury, in order to study the possibility of transfer of mercury from the dental amalgam and also to obtain data of hair mercury in a control population of children. Another step of the work was the development of a method for the determination of selenium, by using the short-lived radioisotope {sup 77}mSe. After the certification of the method it was applied to the analysis of hair, nails and a vitamin supplement. A comparison was made with the results obtain ed by using the long-lived radioisotope of selenium, {sup 75}Se. The results obtained for mercury in the hair samples of populations living in the State of Amapa have shown that the mercury concentrations in these populations are much higher than in the controls. As for the hair samples of children under treatment with mercury amalgam, no significant differences were found in the concentrations of mercury after the treatment. On the other hand, these data were important to obtain data for a control population of children. The results obtained by using the radioisotope {sup 77}mSe showed that the method developed was suitable for the analyzed matrixes and the results were similar to the ones obtained by employing the usual AANI method, with the radioisotope {sup 75}Se. (author)

  1. southern Brazil

    Directory of Open Access Journals (Sweden)

    João A.N. Batista

    2005-01-01

    Full Text Available Se describen e ilustran Cyrtopodium klenii y C. brandoniamum subsp. lageanum (Orchidaceae, Cymbidieae, Cyrtopodiinae de la región sur de Brasil. C klenii se asemeja a un grupo de especies caracterizado por los pseudobulbos pequeños, enterrados en el suelo, y por las flores pequeñas; pero se distingue por el color de las flores, los lóbulos laterales del labelo poco o nada falcados, aproximadamente tan largos como anchos, por el lóbulo mediano del labelo con base poco o nada constricta y por la distribución geográfica. C. brandoniamum subsp. lageanum es similar a la variedad tipo en cuanto al patrón general de coloración, pero se distingue por florecer más tempranamente, por las hojas poco desarrolladas en la antesis, y por la forma y coloración del labelo. Ambos son taxones poco frecuentes, sólo conocidos para el sur de Brasil.

  2. Geslagsgebaseerde genrekonvensies en die kritiese ontvangs van Buchi Emecheta se Destination Biafra (Nigerië

    Directory of Open Access Journals (Sweden)

    Polo B. Moji

    2014-05-01

    Full Text Available ’n Geslagsgebaseerde ruimtelike konsepsie van oorlog – wat ’n verdeling skep tussen die manlike oorlogsfront en ’n vroulike tuisfront – ondermyn die geloofwaardigheid van vroue se deelname aan die stryd en die legitimiteit van vroue-oorlogromans. Deur ’n studie van Buchi Emecheta se Destination Biafra, eers gepubliseer in 1982 te doen, beklemtoon hierdie artikel die rol van genrekonvensies tydens die produksie en ontvangs van oorlogromans geskryf deur Afrika vroueskrywers. Emecheta se gewaagde keuse om die tuis- en/of oorlogsfrontverdeling te ondermyn deur die skepping van ’n vroulike soldaat-heldin, Debbie, is die fokuspunt van hierdie analise. Binne die konteks van post-koloniale Afrika letterkunde word die werke deur vroue uitgebeeld as ’n proses van die ‘terug skryf’ aan ’n kanon wat vroue uitbeeld as apolitiese geleiers van tradisie. Emecheta doen afstand van kanonikale merkers van Afrika-‘egtheid’ met die karakter van Debbie, ’n liminale figuur wat haar identiteit moet vind te midde van moderniteit en tradisie; manlikheid en vroulikheid. Die artikel kom tot die slotsom dat die hoofrede waarom die karakterisering van Debbie as onbevredigend geag word, is omdat dit die simplistiese kategorisering van genre konvensies uitdaag. Té dikwels word genre as ’n vaste kategorie beskou, maar ’n betekenisvolle ontleding van Destination Biafra dwing die leser om dit as ’n oop kategorie te beskou, waarvan die konvensies ‘gebuig’ kan word om minderheidsletterkunde te akkommodeer wat nuwe sub-genres ontwikkel.

  3. Electric power transport costs - methodologies analysis; Custos de transporte de energia eletrica: analise de metodologias

    Energy Technology Data Exchange (ETDEWEB)

    Takahata, Dario

    1997-07-01

    The dissertation presents the aspects related to the restructuring of power systems in terms of international experiences, and the possible implications for the definition of the new power system in Brazil. The experience shows that the reform in various countries has started from the sector deverticalization, together with the transmissions open access scheme. The retrospect of researched countries indicates that the transmissions remuneration is based on a methodology that recovers the operative cost of transmission transactions, along with an additional amount that take into account the cost of the existing transmission system. The following countries have been analyzed: Chile, Norway, England and Argentina. This work also shows the current situation in Brazil, as in terms of tariffs, as regarding the power system organizational structure, as well as a preliminary proposal conceived by SINTREL (National System of Electrical Energy Transmission) to evaluate the transmission transaction cost. This dissertation ended with comments and conclusions, depicting a future program which might be followed, considering the aspects quoted above and the peculiarities of brazilian power system. (author)

  4. Estudo preliminar sobre a ecologia de Lontra longicaudis (Olfers (Carnivora, Mustelidae no Vale do Taquari, Sul do Brasil Preliminary study by the ecology of Lontra longicaudis (Olfers (Carnivora, Mustelidae in Taquari Valley, South Brazil

    Directory of Open Access Journals (Sweden)

    Carlos Benhur Kasper

    2004-03-01

    Full Text Available O estudo foi realizado em duas áreas no Vale do Taquari, região central do Estado do Rio Grande do Sul, Sul do Brasil. Entre agosto de 2000 e dezembro de 2001 foi realizado um estudo sobre a dieta e o uso de abrigos e marcas odoríferas por Lontra longicaudis (Olfers, 1818. Coletaram-se 275 marcas odoríferas, das quais 261 foram analisadas para determinação da dieta. O uso de marcas odoríferas ocorreu por deposição de fezes, sobretudo sobre locais conspícuos das margens dos rios ou no interior dos abrigos. Os abrigos foram formados principalmente por escavação paralela a margem dos rios. Estes abrigos foram altamente reutilizados. Ocorreu predação sobre três grupos de presas: peixes, mamíferos e insetos. Os peixes formam a base da dieta, e as famílias Loricariidae/Callichthyidae, Cichlidae, Pimelodidae/Auchenipteridae e Erythrinidae foram as mais freqüentes nas análises fecais. A ocorrência destes grupos de peixes na dieta é maior do que sua disponibilidade relativa no ambiente.The study was carried out in two areas of Taquari Valley, central region of Rio Grande do Sul State, Southern Brazil. Between August 2000 and December 2001 a study about diet and use of shelters and scent marks by Lontra longicaudis (Olfers, 1818 was performed. 275 spraints were colleted, of which 261 were analised for diet determination. The use of scent marks occured by the deposition of feaces mainly under conspicuous sites of the river margin or inside the shelters. The shelters were often formed by parallel excavation of river margin. The shelters were highly reused. Predation occurred on 3 groups of preys: Fish, Mammals and Insects. The fish, formed the diet base, and the families Loricariidae/Callichthyidae, Cichlidae, Pimelodidae/ Auchenipteridae and Erythrinidae were the most frequently identified ones in fecal analysis. The occurrence of these fish groups in the diet was higher then the relative availability in environment.

  5. Podostemaceae in Southern Brazil

    OpenAIRE

    Mello,Anderson Santos de; Tavares,Aldaléa Sprada; Trevisan,Rafael

    2011-01-01

    Abstract This study provides a taxonomic treatment of the Podostemaceae family in southern Brazil. Podostemaceae is the largest family of strictly aquatic angiosperms. The center of family richness is the equatorial region of South America. Taxonomic studies are still scarce in Brazil. For southern Brazil there are six genera and 10 species recognized. Dichotomous key and illustrations are presented for species identification.

  6. Biochemical Education in Brazil.

    Science.gov (United States)

    Vella, F.

    1988-01-01

    Described are discussions held concerning the problems of biochemical education in Brazil at a meeting of the Sociedade Brazileira de Bioquimica in April 1988. Also discussed are other visits that were made to universities in Brazil. Three major recommendations to improve the state of biochemistry education in Brazil are presented. (CW)

  7. Floral scent of brazilian Passiflora: five species analised by dynamic headspace

    Directory of Open Access Journals (Sweden)

    DANIEL A.V. MONTERO

    2016-01-01

    Full Text Available ABSTRACT This study describes for the first time the chemical composition and olfactive description of floral scent from Brazilian Passiflora (Passiflora edulis Sim, Passiflora alata Curtis, Passiflora cincinnata Mast., Passiflora coccinea Aubl. and Passiflora quadrangularis L.. Five species were grown in greenhouse at the Agronomic Institute (IAC, São Paulo, Brazil. Volatile compounds were collected using dynamic headspace. Analyses of scent composition were performed by gas chromatograph coupled to mass spectrometer. Identification of chemical constituents was conducted through of retention index followed by comparative analysis of mass spectra with specialized databases. The olfactive descriptions of floral scent from each species was evaluated for a professional perfumer. High interspecific diversity was found between chemical compositions of floral scent within Passiflora and different bouquets were observed amount the studied species. Mayor constituents were linalool (P. alata, geraniol (P. quadrangularis, 1,4-dimethoxybenzene (P. edulis, benzaldehyde (P. cincinnata and 2-methyl-3-pentanone (P. coccinea.

  8. Measurement analysis using the Fricke dosemeter; Analise de medicoes com o dosimetro Fricke

    Energy Technology Data Exchange (ETDEWEB)

    Pedrosa, G.A.C. [Instituto Nacional de Metrologia (INMETRO), Rio de Janeiro, RJ (Brazil)], e-mail: gcpedrosa@inmetro.gov.br; Dantas, C.C. [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Dept. de Energia Nuclear], e-mail: ccd@ufpe.br; Campos, C.A. [Centro Regional de Ciencias Nucleares do Nordeste (CRCN-NE/CNEN-PE), Recife, PE (Brazil)], e-mail: auster@elogica.com.br

    2003-07-01

    The Fricke dosemeter has been used for absolute determination of the radiation dose between 40 and 350 Gy for X-rays, Gamma rays and fast electrons energies. The great inconvenient of that dosimetric system is the impossibility of using for measurements of exposure or low dose rates. A Fricke dosimetry system was implanted at the Nuclear Sciences Regional Center (CRCN), in Recife, Pernambuco state, Brazil, for the determination of radiation doses for spectrometry and mass dosimetry with plasma source. The statistical analysis of the obtained results have shown that using the spectrometric method that system cna be used for maintenance of factors of CRCN standard calibrations and the dose assessment thru mail system of radiotherapy centers of the country.

  9. Qualitative analysis of the OSPAR pipeline reliability; Analise gerencial da confiabilidade das bombas do oleoduto OSPAR

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, Rubens Roberto Faria; Silva, Gilmar Divino da [TRANSPETRO - PETROBRAS Transporte S.A., Rio de Janeiro, RJ (Brazil)

    2005-07-01

    The assets, the example of the pumps of external transference, of the Maritime Terminal of Sao Francisco do Sul - Brazil, in operation have 30 years, lacked of management qualitative evaluation, under the optics of the maintenance aiming at to endow the Coordination with Maintenance of better information, for the taking of decision, related to the availability of the rotating equipment. Considering the available data in the system of information, of the data base of operations and maintenance and internationally accepted data base as the OREDA, we evaluate the failure rates, the parameters of the statistical data and quality of the interventions of the maintenance, man power and procedures, being that we arrive the conclusion of that although old the equipment of the transference system meets in good conditions of availability, proving the effectiveness of the maintenance applied to the same ones. (author)

  10. Floral scent of brazilian Passiflora: five species analised by dynamic headspace.

    Science.gov (United States)

    Montero, Daniel A V; Marques, Marcia Ortiz M; Meletti, Laura M M; Kampen, Maria H VAN; Polozzi, Sandra C

    2016-09-01

    This study describes for the first time the chemical composition and olfactive description of floral scent from Brazilian Passiflora (Passiflora edulis Sim, Passiflora alata Curtis, Passiflora cincinnata Mast., Passiflora coccinea Aubl. and Passiflora quadrangularis L.). Five species were grown in greenhouse at the Agronomic Institute (IAC), São Paulo, Brazil. Volatile compounds were collected using dynamic headspace. Analyses of scent composition were performed by gas chromatograph coupled to mass spectrometer. Identification of chemical constituents was conducted through of retention index followed by comparative analysis of mass spectra with specialized databases. The olfactive descriptions of floral scent from each species was evaluated for a professional perfumer. High interspecific diversity was found between chemical compositions of floral scent within Passiflora and different bouquets were observed amount the studied species. Mayor constituents were linalool (P. alata), geraniol (P. quadrangularis), 1,4-dimethoxybenzene (P. edulis), benzaldehyde (P. cincinnata) and 2-methyl-3-pentanone (P. coccinea).

  11. ANALISE SENSORIAL DA BEBIDA DO CAFÉ CONILON DE CLONES DE MATURAÇÃO PRECOCE

    OpenAIRE

    Antônio Pereira Drumond Neto; Gustavo Soares Souza; Sergio Henriques Saraiva; Samuel Assis Silva; Julião Soares de Souza Lima

    2017-01-01

    Este trabalho foi desenvolvido com os cinco clones de maturação precoce do conilon Vitoria, em uma área comercial, em altitude de 520 m. Em três talhões coletou-se café cereja para cada clone e processou-se amostra em fruto natural (coco) e desmucilado. As amostras foram secas inicialmente em terreiro suspenso por 24 h e depois em estufa a 45 graus até obter teor de água de 12% bu. A análise sensorial, da prova de xicara, foi realizada por três degustadores. Os valores obtidos foram analisado...

  12. Manaus, Brazil

    Science.gov (United States)

    2002-01-01

    The junctions of the Amazon and the Rio Negro Rivers at Manaus, Brazil. The Rio Negro flows 2300 km from Columbia, and is the dark current forming the north side of the river. It gets its color from the high tannin content in the water. The Amazon is sediment laden, appearing brown in this simulated natural color image. Manaus is the capital of Amazonas state, and has a population in excess of one million. The ASTER image covers an area of 60 x 45 km. This image was acquired on July 16, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet.ASTER is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. Science team leader; Bjorn Eng of JPL is the project manager. The Terra mission is part of NASA's Earth Science Enterprise, a long-term research and technology program designed to examine Earth's land, oceans, atmosphere, ice and life as a total integrated system.The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping, and monitoring dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface

  13. Não se sabe...

    OpenAIRE

    Corazza,Sandra Mara

    2005-01-01

    Não se sabe se a sua vida consiste numa existência individual; se a sua natureza consiste num fato biológico; ou se a sua cultura consiste num modo de ser social. Não há indicações a respeito, a não ser que, de jeito algum, trata-se de um animal rationale ou de uma imago Dei. Até que um outro - mundo possível? - chegasse, foi identificado à existência primordial. Em função de tal proveniência, através dos tempos, foi considerado como o humano em geral. E, só muito recentemente, viu-se que a s...

  14. SE-590 Landscape Reflectances (OTTER)

    Data.gov (United States)

    National Aeronautics and Space Administration — Bidirectional spectal reflectance factors of landscape elements (litter, soil, bark, scrubs & grasses, leaves) measured by Spectron SE590 spectroradiometer

  15. PHEIFFER SE TAALPOLITIEK JC Steyn

    African Journals Online (AJOL)

    sigself maak tog nie Chomsky se teorie oor n aangebore taalaanleg en die konsekwensie daarvan nl. dat elke taal opgebou moet wees volgens dieselfde grondprinsipes, ongeldig nie? Taalpolitieke oortuigingskrag het hierdie argument nog minder. Sal jy in alle erns vir mense kan se: "Ons moet aanhou om die taal te praat ...

  16. Brazil nuts: an effective way to improve selenium status.

    Science.gov (United States)

    Thomson, Christine D; Chisholm, Alexandra; McLachlan, Sarah K; Campbell, Jennifer M

    2008-02-01

    Brazil nuts provide a rich natural source of selenium, yet no studies have investigated the bioavailability of selenium in humans. We investigated the efficacy of Brazil nuts in increasing selenium status in comparison with selenomethionine. A randomized controlled trial was conducted with 59 New Zealand adults. Participants consumed 2 Brazil nuts thought to provide approximately 100 mug Se, 100 mug Se as selenomethionine, or placebo daily for 12 wk. Actual intake from nuts averaged 53 mug Se/d (possible range: 20-84 mug Se). Plasma selenium and plasma and whole blood glutathione peroxidase (GPx) activities were measured at baseline and at 2, 4, 8, and 12 wk, and effects of treatments were compared. Plasma selenium increased by 64.2%, 61.0%, and 7.6%; plasma GPx by 8.3%, 3.4%, and -1.2%; and whole blood GPx by 13.2%, 5.3%, and 1.9% in the Brazil nut, selenomethionine, and placebo groups, respectively. Change over time at 12 wk in plasma selenium (P nut (P nut group than in the placebo (P = 0.002) and selenomethionine (P = 0.032) groups. Consumption of 2 Brazil nuts daily is as effective for increasing selenium status and enhancing GPx activity as 100 mug Se as selenomethionine. Inclusion of this high-selenium food in the diet could avoid the need for fortification or supplements to improve the selenium status of New Zealanders.

  17. Construction of technological scenarios on the bioethanol production in Brazil, evaluation of the macroeconomic impacts and the risks of the forecast market not to concretize; Construcao de cenarios tecnologicos sobre a producao do bioetanol no Brasil, avaliacao dos impactos macroeconomicos e riscos do mercado previsto nao se concretizar

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-10-15

    This chapter gives a view of the transformations that should occur as functions of the sugar cane culture expansion. In the first part, it is shown how it should behavior the bioethanol demand and the offer of sugar cane and the bio ethanol in the Brazil. The objective of the first part is to demonstrate that there exist full conditions for the brazilian cultivation industry to reach exportation goals and attends to other necessities of the economy. In the second part, it is analysed what would be the possible expansions of these scenarios on the brazilian economy, including the viewpoint of the regional perspective.

  18. Sample Set (SE): SE10 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE10 Effect of phosphorus nutrition for cabbage metabolites Investigation of Brassi...ca oleracea var. capitata Hatukoi leaf metabolites. 3 growth conditions (high, low and no phosphorus nutriti

  19. Sample Set (SE): SE12 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE12 Effect of agricultural films for spinach leaf metabolites Investigation of Spinacia oleracea leaf metab...olites. 2 cultivars (Nihon and Wasesaradaakari), 2 growth conditions (normal film a

  20. Sample Set (SE): SE30 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE30 Comparison of seed metabolites among soybean varieties Investigation of Glycine max. green seed metabol...ites. 3 varieties (Kamogawashichiri, Koitozairai, Tanbakuro) data are examined. Tak

  1. Sample Set (SE): SE13 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE13 Comparison of leaf metabolites among spinach varieties Investigation of Spinacia oleracea leaf metaboli...tes. 4 cultivers (Nihon, Kanaji, Kurohaminstarland and Wasesaradaakari) and 3 repli

  2. Sample Set (SE): SE31 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE31 Comparison of seed metabolites among eggplant fruit tissues Investigation of S...olanum melongena Senryounigou metabolites. 3 tissues (flesh, fruit, peel) data are examined. Takeshi Ara 1,

  3. Sample Set (SE): SE28 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE28 Comparison of leaf metabolites among developmental stages of Hevea brasiliensi...s Investigation of Hevea brasiliensis leaf metabolites. 4 developmental stages and 6 replicates data are exa

  4. Sample Set (SE): SE26 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE26 Effect of compost for cabbage metabolites Investigation of Brassica oleracea v...ar. capitata YR Seisyun leaf metabolites. 2 growth conditions (with or without 6t compost treatment) and 3 r

  5. Sample Set (SE): SE14 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE14 Effect of agricultural films for tomato fruit metabolites Investigation of Sol...anum lycopersicum fruit metabolites. 3 growth conditions (covered with normal or UV cut agricultural film or no agricultura

  6. Sample Set (SE): SE16 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE16 Effect of agricultural films for spinach leaf metabolites 2 Investigation of S...pinacia oleracea leaf metabolites. 3 growth conditions (covered with normal or UV cut agricultural film or no agricultura

  7. Sample Set (SE): SE51 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE51 RIKEN tandem mass spectral database (ReSpect) for phytochemicals: A plant-spec...o be narrowed down to candidate structures. Therefore, a web-based database of MS/MS data pertaining to phytochemicals

  8. Sample Set (SE): SE20 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE20 Arabidopsis thaliana leaf metabolite analysis for a software test Investigatio...es that were investigated to optimize the parameters of PowerGet software for better metabolite annotation i

  9. Sample Set (SE): SE18 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available in by Orbitrap MS and automated search engine Lipid Search A comprehensive and precise identification of pho...SE18 Global identification of phospholipid molecular species in mouse liver and bra

  10. ANALISE SENSORIAL DA BEBIDA DO CAFÉ CONILON DE CLONES DE MATURAÇÃO PRECOCE

    Directory of Open Access Journals (Sweden)

    Antônio Pereira Drumond Neto

    2017-04-01

    Full Text Available Este trabalho foi desenvolvido com os cinco clones de maturação precoce do conilon Vitoria, em uma área comercial, em altitude de 520 m. Em três talhões coletou-se café cereja para cada clone e processou-se amostra em fruto natural (coco e desmucilado. As amostras foram secas inicialmente em terreiro suspenso por 24 h e depois em estufa a 45 graus até obter teor de água de 12% bu. A análise sensorial, da prova de xicara, foi realizada por três degustadores. Os valores obtidos foram analisados pela ANOVA e quando significativos utilizou-se o teste de Tukey para o contraste entre as médias da característica bebida (p<0,05. A bebida apresentou diferença significativa com relação ao processamento das amostras com média de 82,77 para desmucilado e 80,93 para o natural. O processamento dos frutos e os clones não apresentam interação. O clone que apresentou maior valor médio da bebida foi o número 4, com valor de 84,58 pontos.

  11. Analysis of integrity and risk for onshore pipelines; Analise de integridade e risco para dutos onshore

    Energy Technology Data Exchange (ETDEWEB)

    Lima, Marco Aurelio [Det Norske Veritas (DNV), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    The increasing expansion of the oil and gas industry in Brazil, the current legal requirements relating to security, health and environment in the industrial installations, is necessary that the companies, responsible by the operation of pipelines for oil and gas transport, adopt efficient techniques to assure the operational continuity of these of trustworthy form and insurance. To fulfill this important function it is important that the companies implement a management program to control and register the integrity of the pipelines during the all operational life cycle. Inside of this context of management of the integrity of pipelines, the DNV developed the software ORBIT Pipeline with the intention to serve as an important tool to monitor the technique and security condition of the pipeline, to define the frequency and content technician of the inspection program and to recommend the work of intervention or repair in pipeline when necessary. Additionally to these activities that are carried through directly in the ORBIT Pipeline, also an evaluation of the activity of third part and the land/soil movement is made inside of the systematic for analysis of integrity and risk for onshore pipelines performed by DNV. (author)

  12. Effect of phosphate rate on the L-value of two soils from Bahia State, Brazil

    International Nuclear Information System (INIS)

    Cotrim Duete, Robson Rui; Alvarez Villanueva, Felipe Carlos; Muraoka, Takashi; Abreu Junior, Cassio Hamilton

    1999-01-01

    The determination of L value in low phosphate content soils has presented contradictory results in the literature. In order to evaluate the effect of P rates on L value of two representative soils of Bahia State, Brazil, an experiment was carried out in green house of CENA, USP in Piracicaba. The experiment consisted of two soils (calcareous Red-yellow latosol ''LVc'' and distrofic Red-yellow latosol ''LVd'', collected from Irec and Ribeira do Pombal, respectively) and three P rates (0; 28; and 140 kg P ha -1 ) as triple superphosphate and carried out in plastic pot with 2.5 kg of soil, using corn (Zea mays L.) ''Catetinho Sabugo Roxo'' cultivar as the test plant. The 32 P was applied as KH2PO4 solution, 3.7MBq/pot. The plants were collected 45 days after emergence, dried, weighed, ground and analised for total P content and 32 P radioactivity. The increasing fertilizer P rate increased the nutrient derived from the soil and consequentely, the L values varied with the rate of P fertilizer. The calcareous LV soil showed to have higher L value, though the greater relative increase were observed in distrofic LV soil, due to lower P adsorption values

  13. A cozinha pós-moderna do MasterChef Brasil: social TV e mídia que se propaga no Twitter = The post-modern kitchen of MasterChef Brazil: social TV and spreadable media on Twitter

    Directory of Open Access Journals (Sweden)

    Vilela, Mateus Dias

    2015-01-01

    Full Text Available As redes sociais têm servido como ágoras na qual os indivíduos, em torno de conteúdos televisivos, reú- nem-se dando origem ao fenômeno de Social TV. Dessa forma, a televisão busca se adaptar a um novo cenário audiovisual ao criar conteúdos que se propagem e incitem a discussão e o compartilhamento. Diante deste contexto, este ensaio analisa o reality show MasterChef Brasil, ao perceber que este propagou-se ao potencializar o papel da Social TV e ao empoderar seu público presente no Twitter

  14. Podostemaceae in Southern Brazil

    OpenAIRE

    Mello, Anderson Santos de; Tavares, Aldaléa Sprada; Trevisan, Rafael

    2011-01-01

    Abstract This study provides a taxonomic treatment of the Podostemaceae family in southern Brazil. Podostemaceae is the largest family of strictly aquatic angiosperms. The center of family richness is the equatorial region of South America. Taxonomic studies are still scarce in Brazil. For southern Brazil there are six genera and 10 species recognized. Dichotomous key and illustrations are presented for species identification. Resumo O presente estudo apresenta um tratamento taxonômico par...

  15. Señas Mexicano

    Directory of Open Access Journals (Sweden)

    Juan F. García Mejía

    2007-01-01

    Full Text Available En este artículo se muestra un sistema que permite el estudio y práctica del Lenguaje de Señas Mexicano (LMS, el cual es el método de comunicación de las personas que padecen un trastorno de procesamiento auditivo. El sistema propuesto en este artículo consta de un guante de tela instrumentado con sensores de flexión, una etapa de acondicionamiento de señales y una tarjeta de adquisición de datos; que en su conjunto constituyen el Hardware. El software esta formado por un programa de adquisición de datos y una interfaz de usuario, ambos codificados en Visual Basic Net. El sistema propuesto se modela por medio del lenguaje de modelado unificado (UML, ya que Visual Basic es un lenguaje orientado a eventos.

  16. Antivirais incorporados no Brasil para hepatite B cronica: analise de custo-efetividade

    Directory of Open Access Journals (Sweden)

    Gustavo Laine Araujo de Oliveira

    2013-08-01

    Full Text Available OBJETIVO Avaliar o custo-efetividade de diferentes tratamentos medicamentosos para hepatite B crônica entre pacientes adultos. MÉTODOS Utilizando modelo de Markov, construiu-se coorte hipotética de 40 anos para pacientes HBeAg-positivo ou HBeAg-negativo. Foram comparados os usos de adefovir, entecavir, tenofovir e lamivudina (com terapia de resgate em caso de resistência viral para tratamento de pacientes adultos com hepatite B crônica, virgens de tratamento, com elevados níveis de alanina aminotransferase, sem evidência de cirrose e sem coinfecção por HIV. Valores para custo e efeito foram obtidos da literatura. A medida do efeito foi expressa em anos de vida ganhos (AVG. Taxa de desconto de 5% foi aplicada. Análise de sensibilidade univariada foi conduzida para avaliar incertezas do modelo. RESULTADOS O tratamento inicial com entecavir ou tenofovir apresentou melhores resultados clínicos. As menores razões custo-efetividade foram de entecavir para pacientes HBeAg-positivo (R$ 4.010,84/AVG e lamivudina para pacientes HBeAg-negativo (R$ 6.205,08/AVG. Para pacientes HBeAg-negativo, a razão custo-efetividade incremental de entecavir (R$ 14.101,05/AVG está abaixo do limiar recomendado pela Organização Mundial da Saúde. Análise de sensibilidade mostrou que variação nos custos dos medicamentos pode tornar tenofovir alternativa custo-efetiva tanto para pacientes HBeAg-positivo quanto para HBeAg-negativo. CONCLUSÕES Entecavir é alternativa recomendada para iniciar o tratamento de pacientes com hepatite B crônica no Brasil. Contudo, se houver redução no custo de tenofovir, esta pode se tornar alternativa mais custo-efetiva.

  17. Hablando... se entiende la gente

    OpenAIRE

    Nancy Citlalli Mora Zepeda

    2011-01-01

    Habiendo observado que muchos cursos centrados en el desarrollo de la competencia comunicativa oral se limitan a ofrecer actividades inconexas que suponen un gran esfuerzo por parte de los participantes para situarse ante cada actividad y dificultan el establecimiento de relaciones profundas entre los exponentes nociofuncionales, los objetivos comunicativos y los recursos lingüísticos necesarios para realizarlas por contar con un tiempo limitado en el aula para ello, se presentó, bajo el mism...

  18. Porøse materialer

    DEFF Research Database (Denmark)

    Hansen, Ernst Jan de Place

    2000-01-01

    Dette undervisningsnotat er en samling af noter, der refererer til den indledende del af kurset Materialmekanik og Porøse materailer på Insitut for Bærende Konstruktiner og Materialer (BKM).......Dette undervisningsnotat er en samling af noter, der refererer til den indledende del af kurset Materialmekanik og Porøse materailer på Insitut for Bærende Konstruktiner og Materialer (BKM)....

  19. La prensa gratuita se reivindica

    Directory of Open Access Journals (Sweden)

    Francisco Fernández Beltrán

    2015-01-01

    Full Text Available La prensa gratuita que, irrumpió en 1995, con la aparición del diario METRO en Estocolmo. Hoy en España se afirma que fomenta el hábito lector, crea nuevos lectores e incrementa el consumo del resto de diarios. Su independencia es sensiblemente mayor al de la prensa de pago, que es "claramente sectaria". Quizá lo gratuito es el estigma pues se asocia a la falta de calidad.

  20. Residuos da construção civil : analise de usinas de reciclagem

    OpenAIRE

    Nelma Almeida Cunha

    2007-01-01

    Resumo: Este trabalho é uma abordagem do desenvolvimento sustentável no setor da construção civil, enfocando os resíduos gerados pelas atividades construtivas e o papel das usinas de reciclagem nesse contexto. Apresenta, ainda, conceitos referentes à sustentabilidade, à inovação cultural, aos impactos gerados e à reciclagem como alternativa técnica, econômica e ambientalmente viável. Desse modo, faz referência aos vários aspectos da legislação e do mercado, aos resíduos, considerando-se suas ...

  1. Analise acustica das vogais orais do Portugues de Florianopolis-Santa Catarina

    OpenAIRE

    Lima, Ronaldo

    1991-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Comunicação e Expressão O objetivo principal é estabelecer as freqüências de cada vogal oral do português de Florianópolis-SC. Para a caracterização acústica das vogais trabalhou-se sobre amostras de fala natural, produzidas por 5 informantes criteriosamente selecionados. Com base em um corpus elaborado para este fim o material sonoro, contendo vogais orais tônicas, pré-tônicas e pós-tônicas em sílaba inicial, media...

  2. LUCRO RESIDUAL E CONTABILIDADE: INSTRUMENTAL DE ANALISE FINANCEIRA E MENSURAcAO DE PERFORMACES

    Directory of Open Access Journals (Sweden)

    Gualter Portella

    2009-09-01

    Full Text Available Estes últimos anos, os mercados de capitais e financeiro tem sido invadidos por sistemas de administração financeira baseados no conceito de lucro residual. As firmas de consultoria financeira apresentam o Iucro residual rebatizado sob o nome de EVA (Economic value added ou Lucro Econômico - como instrumento de avaliação economico-financeira, alinhamento dos interesses de acionistas e administradores e mensuração de performance empresarial. Por essa multifuncionalidade, esses sistemas têm alcançado altos índices de popularidade junto ao empresariado. Entretanto, pouco tem se falado sobre a base te6rica desses sistemas de gerenciamento financeiro que liga os fundamentos de finanças com a disciplina contábil, sendo que e justamente esse elo o que os tem tornado populares. Afinal de contas, a contabilidade c conhecida como a linguagem dos neg6cios e por intermédio de seu vocabulário especifico são comunicados os desempenhos atuais c as expectativas em relação ao desempenho futuro das empresas. Por exemplo, os executivos utilizam-se de indicadores como o retorno sobre o patrimônio liquido (RSPL ou a margem de lucros para avaliar e comunicar a performance atual de suas empresas.

  3. Quando uma proposição não se converte em política?: O caso da Política Nacional de Atenção Integral à Saúde de Adolescentes e Jovens - PNAISAJ When does a proposition not become a policy?: The case of the Brazilian Comprehensive Health Care Policy for Adolescents and Youths - PNAISAJ - in Brazil

    Directory of Open Access Journals (Sweden)

    Martha Cristina Nunes Moreira

    2013-04-01

    Full Text Available As três últimas décadas foram fecundas à instituição de políticas públicas voltadas para a saúde integral de vários extratos populacionais no Brasil. Pretendemos apresentar os resultados parciais da análise das narrativas de atores participantes da construção da proposta da Política Nacional de Atenção Integral à Saúde de Adolescentes e Jovens (PNAISAJ, com o objetivo de explorar os dissensos observados neste processo. A análise se baseou nas narrativas de 8 atores partícipes do processo e buscou identificar as unidades temáticas que expressam tais dissensos numa leitura compreensivista segundo a perspectiva socio­lógica de Bourdieu. Concluímos que a não legitimação de uma Política Nacional para este extrato populacional expressa o não reconhecimento dos adolescentes e jovens como sujeitos autônomos e protagonistas de decisões políticas a estes afetas. Apesar do protagonismo juvenil ser enunciado nos textos políticos como um novo paradigma para a promoção da saúde integral dos adolescente e dos jovens, concluímos que, culturalmente, o que prevalece é a legitimação de outros sentidos. Sentidos estes deliberados segundo os interesses e a compreensão da adolescência e da juventude pelas instâncias sociais mais ampliadas, se constituindo como políticas culturais.The last three decades have been fertile for the establishment of public policies geared to comprehensive health care for various population groups in Brazil. The scope of this article is to present the partial results of the analysis of the narratives of actors who participated in the creation of the Comprehensive Health Care policy for Adolescents and Youths - PNAISAJ in Brazil, in order to explore the lack of consensus in this process. The analysis was based on the narratives of eight actors who participated in the process and sought to identify the thematic units that express the lack of consensus by a comprehensive analysis based on Bourdieu

  4. Energy analysis of the poultry rising located at the Sertao do Pajeu, Pernambuco, Brazil; Analise energetica de aviarios localizados no Sertao do Pajeu pernambucano

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Heitor Scalambrini; Lopes, Tiago Pessoa de Melo Queiroz [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Nucleo de Apoio a Projetos de Energias]. E-mail: naper@ufpe.br

    2006-07-01

    The activity of poultry raising is today an alternative for income generation in the backlands of Pajeu, State of Pernambuco. In the City of Sao Jose do Egito, distant 402 km from the State Capital Recife, there is a large poultry plant with 284 integrated poultry farms owned by small rural producers. Those poultry farms are built in masonry and lateral woven wire fencing within the standard size of 9 m X 125 m. Their capacity is 10,000 birds and they are equipped with drinking and feed boxes, silos, fans, nebuliser, motor-pumps, lights and heaters. In their first 18 days of the bird's life, called 'baby chick phase', it needs a warm environment temperature of about 34 deg C, which is fundamental for its survival. In that phase the energy consumption is mainly related to water pumping and lighting. From the 19th day up to the 45th day - the period called 'poultry phase' - the birds need lower temperatures. The feeders are automatic, fans and nebulizers are used to ease the air circulation and to improve the poultry comfort. This phase is the one, which requires more electric energy consumption. After 45 days the poultry is slaughtered with about 2.8 kg and the poultry farm comes into a time period of cleaning and resting called 'cleaning and resting phase', which takes from 15 to 28 days. This is the phase with the lowest energy consumption. Then the poultry farm cycle is completed, which takes about 70 days, that is, the time span of one year accounts for 5.5 cycles. In this work an energy consumption analysis for all phases of poultry raising is performed and alternative proposals for the energy conservation and energy consumption reduction is presented. (author)

  5. An energetic analysis of a Chinese type bio digester in Brazil; Uma analise energetica de um biodigestor tipo chines no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Raad, Antonio; Moreira, Marco A.R.G.; Rebello, Renata B.M. [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia

    1996-12-31

    The energetic analysis has proved to be an important instrument for the evaluation of energetic alternatives concerning strategies objectives through the analysis of a Chinese type bio digester in the Brazilian use situation this work demonstrates that the technology is viable for Brazilian countryside areas 11 refs., 4 tabs.

  6. Cabo rift structural analysis, Pernambuco State south coast land, Brazil; Analise estrutural do rifte do Cabo, litoral sul do estado de Pernambuco, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Polonia, Jorge Alexandre L. [Companhia de Pesquisas de Recursos Minerais (CPRM), Recife, PE (Brazil)

    1997-12-31

    The Cabo Rift, located at Pernambuco State South coast land and inserted in the Brazilian coastal basin set, was generated at Eocretaceous during the tectonic processes responsible by the South-American and African continents separation. In this study, the structural analysis of the Cabo Rift was based mainly in the Oliveira (1993) gravimetric surveys, in radar image analysis and in some works (Polonia, 1997) that distinguished the structures characterization and determination that originated the Cabo Basin. In this last stage, some data about kinematic indicators in faults plans, like secondary fractures, striations, etc., were collected and treated statistically with specific softwares 6 refs., 4 figs.

  7. Hazard analysis and critical control point to irradiated food in Brazil; Analise de perigos e pontos criticos de controle para alimentos irradiados no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Boaratti, Maria de Fatima Guerra

    2004-07-01

    Food borne diseases, in particular gastro-intestinal infections, represent a very large group of pathologies with a strong negative impact on the health of the population because of their widespread nature. Little consideration is given to such conditions due to the fact that their symptoms are often moderate and self-limiting. This has led to a general underestimation of their importance, and consequently to incorrect practices during the preparation and preservation of food, resulting in the frequent occurrence of outbreaks involving groups of varying numbers of consumers. Despite substantial efforts in the avoidance of contamination, an upward trend in the number of outbreaks of food borne illnesses caused by non-spore forming pathogenic bacteria are reported in many countries. Good hygienic practices can reduce the level of contamination but the most important pathogens cannot presently be eliminated from most farms, nor is it possible to eliminate them by primary processing, particularly from those foods which are sold raw. Several decontamination methods exist but the most versatile treatment among them is the ionizing radiation procedure. HACCP (Hazard Analysis and Critical Control Point) is a management system in which food safety is addressed through the analysis and control of biological, chemical, and physical hazards from raw material production, procurement and handling, to manufacturing, distribution and consumption of the finished product. For successful implementation of a HACCP plan, management must be strongly committed to the HACCP concept. A firm commitment to HACCP by top management provides company employees with a sense of the importance of producing safe food. At the same time, it has to be always emphasized that, like other intervention strategies, irradiation must be applied as part of a total sanitation program. The benefits of irradiation should never be considered as an excuse for poor quality or for poor handling and storage conditions, i.e.. as a substitute for good manufacturing practices. By adopting an HACCP based approach to food safety management, it can be clearly demonstrated that the application of a technology like food irradiation is essential for ensuring the safety of raw food stuffs. Such an intervention should be considered as a CCP (Critical Control Point) in the food chain. Therefore, the potential benefit of irradiation, which is endorsed by national and international bodies surely merits serious consideration by public health authorities, industry and consumer groups worldwide. For such, a system of HACCP and the irradiation is primordial so that the alimentary .safety is maintained processes if they are applied correctly. (author)

  8. Analysis of the economic potential of the landfill in the municipality of Chapeco - SC, Brazil; Analise do potencial economico do aterro sanitario do municipio de Chapeco - SC

    Energy Technology Data Exchange (ETDEWEB)

    Cansian, Maricy Moreno, Email: maricymc@gmail.com

    2006-07-01

    This study aims to evaluate the economic and environmental viability of the exploitation of methane gas (CH4) - biogas - concentrated at the bottom of the mountains of waste from landfill Chapeco for power generation. The landfill receives approximately of 80 tons / day, the vast majority of domestic origin.

  9. Structural analysis and magmatism characterization of the Major Gercino shear zone, Santa Catarina State, Brazil; Analise estrutural e caracterizacao do magmatismo da zona de cisalhamento Major Gercino, SC

    Energy Technology Data Exchange (ETDEWEB)

    Passarelli, Claudia Regina

    1996-12-31

    This work describes the geometric and kinematic characteristics of the Major Gercino Shear Zone (MGSZ) in the Canelinha-Garcia area. This shear zone is one of the major lineaments that affect all southern Brazilian precambrian terrains. In Santa Catarina State, it separates, along its whole extension, the supracrustal rocks of the Brusque belt (northern part) from the Granitoid belt (southern). This zone is characterized by a regional NE trend and a dextral sense of movement where ductile-brittle structures predominate. The MGSZ is composed of two mylonitic belts separated by granitoid rocks probably associated to the development of the shear zone. Both shear zones show cataclastic to ultra mylonitic rocks, but mylonites and protomylonites conditions at high strain rate. The calc-alkaline granitoids present in the area can be grouped in two granitoid associations with meta to peraluminous affinities. The Rolador Granitoid Association is characterized by grayish porphyritic biotite-monzogranites and the Fernandes Granitoid Association by coarsed-grained to porphyritic pinkish amphibole-syenogranites. The U-Pb and Rb-Sr ages range from 670 to 590 Ma with the Sr{sup 87} / Sr{sup 86} initial ratios suggesting a crustal contribution in the generation of these rocks. The importance of the pure shear component is also emphasized by the results of the Fry method. Many z axes of the strain ellipses are at high angle to the shear foliation. Symmetric porphyroclasts also corroborate this hypothesis. The micaceous minerals formed during the shear development indicate K-Ar ages around 555 {+-} 15 Ma. Brittle reactivations of the shear zone have been placed by K-Ar in fine-fraction materials at Triassic time (215 {+-} 15 Ma.) 220 refs., 107 figs., 18 tabs., 4 maps

  10. ’n Retoriese analise van Romeine 9:1–10:4

    Directory of Open Access Journals (Sweden)

    A.H. (Andries Snyman

    2015-06-01

    Full Text Available Die artikel is ’n poging om Paulus se retoriese strategie uit die teks self te rekonstrueer, eerder as om ’n klassieke of moderne retoriese model op die teks toe te pas. ’n Voorstel virso ’n teksgesentreerde benadering word kortliks opgesom, gevolg deur ’n beskrywing van die retoriese situasie wat Paulus in die brief wil ondersoek. Daar word geargumenteer dat Romeine 9:1–10:4 ’n integrale deel van Paulus se retoriese strategie vorm met die doel om sy gehoor te oortuig om sy siening van God se verlossingsplan, asook sy beoogde sending na Spanje te steun. In die proses van oorreding gebruik hy verskillende soorte argumente en retoriese tegnieke om die trefkrag van sy kommunikasie te verhoog. Die gevolgtrekkingis dat ’n teksgesentreerde benadering (met fokus op die funksionele aspekte van die teks ’n beter alternatief as die bestaande benaderings (met fokus op die formele aspekte van die teks bied. A rhetorical analysis of Romans 9:1-10:4. This article is an attempt to reconstruct Paul’s rhetorical strategy from the text itself, rather than applying ancient or modern rhetorical models to his letters. A proposal for such a text-centred approach is briefly summarised, followed by a discussion of the rhetorical situation that Paul wants to address in this letter. It is argued that Romans 9:1–10:4 forms an integral part of his rhetorical strategy, aimed at persuading his audience in Rome to support his view on God’s plan of salvationas well as his forthcoming mission to Spain. In the process of persuasion Paul uses various types of argument and rhetorical techniques to enhance the impact of his communication.The conclusion is that a text-centred approach (with its focus on the functional aspects of the text provides a better alternative to existing approaches (which focus on the formal aspects of the text.

  11. Estimativa do tempo decorrido de morte atraves da analise do esfriamento corporal

    OpenAIRE

    Luis Renato Silveira Costa

    1998-01-01

    Resumo: O estudo da cronotanatognose (determinação do tempo de morte) baseia-se na avaliação dos fenômenos cadavéricos conhecidos como fenômenos consecutivos, posto que surgem algum tempo após a morte, a saber: a evaporação cutânea, os livores hipostáticos, a rigidez cadavérica e o esfriamento corporal. Dentre esses fenômenos, somente as variações da temperatura corporal são passíveis de medição, sendo que os demais permitem, apenas, avaliações qualitativas, sujeitas à interpretação individua...

  12. Sample Set (SE): SE50 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available oids We report that flavonoids with radical scavenging activity mitigate against ox...ress. These data confirm the usefulness of flavonoids for enhancing both biotic and abiotic stress tolerance...SE50 Enhancement of oxidative and drought tolerance in arabidopsis by overaccumulation of antioxidant flavon

  13. Sample Set (SE): SE59 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available idopsis thaliana (Arabidopsis). However, the behavior of flavonoids during drough...t stress is still not well documented. Herein we investigated the time-series alternation of flavonoids in t...vonoids, a class of specialized metabolites, including flavonols and anthocyanins w...SE59 Alternation of flavonoid accumulation under drought stress in Arabidopsis thaliana We reported that fla

  14. Sample Set (SE): SE27 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE27 Effect of agricultural films for cabbage leaf metabolites Investigation of Bra...ssica oleracea var. capitata YR Tenkuu leaf metabolites. 3 growth conditions (covered with normal or UV cut agricultura...l film or no agricultural film), 3 replicates data are examined. Takeshi Ara 1, Naoki Yamamoto 1,

  15. Sample Set (SE): SE52 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE52 Mass spectra-based framework for automated structural elucidation of metabolom...e data to explore phytochemical diversity A novel framework for automated elucidation of metabolite structur...te ontology system was also introduced to attain putative characterization of the metabolite signals.The automate

  16. Die ontwerp van ’n digitale pedagogiese patroon vir die verbetering van leerders se mondelinge kommunikasievaardighede

    Directory of Open Access Journals (Sweden)

    Carina Grobler

    2016-09-01

    Full Text Available Suid-Afrikaanse voorgraadse vreemdetaalstudente het meer geleenthede nodig om hulle mondelinge kommunikasievaardighede te oefen. Nie net lewer die akademiese literatuur ‘n pleidooi vir meer klem op mondelinge vaardighede nie (Delena-le Roux 2010, dit is ook een van die sentrale gevolgtrekkings uit ’n opname onder beginnerstudente wat Frans neem by die Potchefstroomkampus van die Noordwes-Universiteit (Suid-Afrika. Dit was dus noodsaaklik om 'n onderrig- en leerervaring te ontwerp wat daarop gemik is om beginnerstudente se mondelinge kommunikasievaardighede in Frans te verbeter. Laurillard (2012 se Gespreksraamwerk was die inspirasie vir die ontwerp van 'n digitale pedagogiese patroon (DPP wat bestaan uit konteks en pedagogiese beskrywers ten einde vreemdetaalleerders se mondelinge vaardighede te ontwikkel. Die Gespreksraamwerk analiseer formele leer en die struikelblokke met die gebruik van nuwe tegnologieë in leer. Die implementeringsproses van ‘n DPP vir die ontwikkeling van die mondelinge vaardighede van studente (in Frans het drie siklusse, elk met sy eie uitkomste, en drie groepe deelnemers – die kontrolegroep en twee eksperimentele groepe – behels. Die toetsing van die voorgestelde DPP het belangrike insigte gebied wat geïntegreer behoort te word in die ontwerp van toekomstige digitale pedagogiese patrone vir die spesifieke konteks: deelnemersgroepe behoort tot twee beperk te word; leerervarings wat uitgevoer word tydens die beperkte onderrigtyd van ʼn semester behoort verminder te word; daar moet verseker word dat elke stap van die leerervaring voldoen aan die vereistes van die Gespreksraamwerk. Studente-uitslae van die leerervarings in toekomstige studies behoort te onthul watter siklus die beste bydra tot die verbetering van mondelinge kommunikasievaardighede.

  17. Traumatismos maxilofaciais como marcadores de violencia urbana: uma analise comparativa entre generos

    Directory of Open Access Journals (Sweden)

    Carlos Jose de Paula Silva

    2014-01-01

    Full Text Available A violência tem sido um tema amplamente discutido em diversos setores da sociedade, quer pelo reflexo nos indicadores de segurança pública, pela influência no cotidiano dos indivíduos ou pela presença constante de vítimas nos serviços de saúde. O estudo avaliou comparativamente as diferenças de vitimização entre os gêneros a partir dos traumatismos maxilofaciais como marcadores de violência urbana. Trata-se de um estudo transversal com dados coletados em três hospitais especializados no atendimento a politraumatismos em Belo Horizonte (MG, entre janeiro de 2008 e dezembro de 2010. As análises envolveram estatística descritiva e multivariada por regressão logística. Identificou-se o registro de 7.063 vítimas, sendo 55,1% de violência interpessoal. A maioria das vítimas era do sexo masculino (71,2%. Nos homens, as agressões por arma de fogo, arma branca e acidentes motocilísticos foram as mais importantes quando comparadas às agressões nuas ou sem uso de armas. As fraturas múltiplas foram o tipo de traumatismo que melhor caracterizou o perfil de vitimização para o sexo masculino comparativamente às lesões de partes moles. O gênero é um importante fator na vitimização por traumatismo maxilofacial e violência urbana, sendo que os homens são as principais vítimas.

  18. IDRC in Brazil

    International Development Research Centre (IDRC) Digital Library (Canada)

    This is especially true in the music, film, and publishing industries. Researchers are exploring how Brazil could better exploit its diverse and vibrant culture through digital technologies. They will identify incentives that help the government promote creativity and entrepreneurship. □ Wage inequalities in Brazil and India.

  19. The Case of Brazil

    International Development Research Centre (IDRC) Digital Library (Canada)

    pwust

    Brazilian assistance programs focus on technical cooperation in developing countries (TCDC), a concept Brazil has promoted since the 1960s. As a result, the country does not undertake programs that involve grants or concessional loans. TCDC programs and projects represent the largest component of Brazil's ...

  20. Ud at se med Erasmus

    DEFF Research Database (Denmark)

    Frandsen, Pernille

    2009-01-01

    Få lidt luft under vingerne, kom ud at møde udenlandske kolleger og se, hvordan man også kan lave uddannelsesbibliotek. Med begejstring fortæller tre bibliotekarer om deres oplevelser i det store udland – alt sammen finansieret af Erasmus.......Få lidt luft under vingerne, kom ud at møde udenlandske kolleger og se, hvordan man også kan lave uddannelsesbibliotek. Med begejstring fortæller tre bibliotekarer om deres oplevelser i det store udland – alt sammen finansieret af Erasmus....

  1. Daan Dreyer se blou geranium

    African Journals Online (AJOL)

    betaal word, word gou vergeet, of blyk nie so hoog te gewees het nie. Daan Dreyer se blou geranium is egter 'n meer volwasse roman as. Mieke rock uit. In eersgenoemde is daar 'n gro- ter bewustheid van pyn en hartseer en word daardie gevoelens nie so maklik uitgewis so- dra daar weer goeie dinge gebeur nie.

  2. Shape coexistence in 74Se

    Czech Academy of Sciences Publication Activity Database

    Thiamová, Gabriela

    2001-01-01

    Roč. 51, č. 6 (2001), s. 553-556 ISSN 0011-4626 Institutional research plan: CEZ:AV0Z1048901 Keywords : shape coexistence * 74Se Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 0.345, year: 2001

  3. Ud & se - med Claude Monet

    DEFF Research Database (Denmark)

    Bonde, Lisbeth

    2015-01-01

    Udstillingen 'Claude Monet - Lost in Translation - på ARoS stiller ind på Claud Monet og hans samtidige malerkolleger. Udstillingen forsøger at "genlæse" Monet fra et samtidskunstnerisk perspektiv - og vurderer hans indsats, inden hans værker er blevet reproduceret ihjel....

  4. Sample Set (SE): SE37 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available SE37 Medicago truncatula shoot metabolite analysis using stable isotopes Metabolite...s in the Medicago truncatula shoot are investigated by using stable isotope labelings. This analysis was per...formed to estimate the elemental composition with high reliability using the number of stable isotopes incor...nces by comparing the mass spectra of isotope-labeled and unlabeled data sets. Plant Biotechnology (2014) 3: 269-274 ...

  5. Sample Set (SE): SE58 [Metabolonote[Archive

    Lifescience Database Archive (English)

    Full Text Available calibration curves over a biologically defined concentration range for all detected compounds. By performing... metabolomics on a stepwise gradient between two biological specimens, we obtain ...rference. Analysis of artificial biological gradients is a general and inexpensive tool for calibration that...SE58 Exploring matrix effects and quantification performance in metabolomics experi...ments using artificial biological gradients We introduce a powerful approach that provides semiquantitative

  6. The use of chemical and isotopic data as indicators of the origin of waters and dissolved salts in the Bambui calcareous aquifer (Bahia-Brazil)

    International Nuclear Information System (INIS)

    Siqueira, A.F.

    1978-10-01

    Samples of 25 wells located in the Bambui limestone aquifer in the region of Irece - Bahia, have been analised for the isotopic ratio 18 O/ 16 O and the major chemical species Ca, Mg, Na, K, Cl, SO 4 and bicarbonate. The oxygen-18 data have been found to range between -2,62/00(in a thousand) to -6,66/00(in a thousand) relative to the universal Standard Mean Ocean Water (SMOW) and are compared with the values of the precipitation in the localities of Jacobina and Lencois (meteorological stations nearby) and with the values of the groundwater in sedimentary basins in northeastern Brazil. The comparison suggests that aquifer system is recharged by precipitation originated in northeastern Brazil, instead of originating on coast of Bahia, east of the area. Furthermore, the waters in aquifer are not found homogenized, having widely varying 18 O and chemical composition and being of different ages. The strong correlation between the observations Ca, Mg, Na, Cl and TDS (total dissolved solids) suggests an aerosol origin of salts, not excluding the hypothesis of dissolution of rock, which concentrations. The comparison of characteristic ratios Mg/Ca, SO 4 /Cl and (Cl-Na)/Cl, a Piper diagrama and a dendrogram established by cluster analysis, indicates that the wells may be separated in to two groups according to the isotopic or geochemical environment to which they belong. These groups may represent the differents sources of salt proposed, one being from the limestone, the other having come from aerosols. (Author) [pt

  7. Hablando se entiende la gente

    Directory of Open Access Journals (Sweden)

    Mila Crespo Picó

    2012-08-01

    Full Text Available Habiendo observado que muchos cursos centrados en el desarrollo de la competencia comunicativa oral se limitan a ofrecer actividades inconexas que suponen un gran esfuerzo por parte de los participantes para situarse ante cada actividad y dificultan el establecimiento de relaciones profundas entre los exponentes nociofuncionales, los objetivos comunicativos y los recursos lingüísticos necesarios para realizarlas por contar con un tiempo limitado en el aula para ello, se presentó, bajo el mismo título que esta comunicación, una propuesta didáctica para un curso de conversación que pretende paliar estos aspectos en el I Foro de Profesores de E/LE en la Universitat de València.

  8. Hombre que no se rinde

    OpenAIRE

    de Jované, Minerva de Jované

    2011-01-01

    Era el mes de junio de 1959. Jorge, un joven activista, líder estudiantil, que defendía con vehemencia sus posiciones, inflexible en cuestiones de principios, regresaba de Guatemala y fue arrestado en el aeropuerto por policías uniformados bajo el mando del entonces capitán Torrentes. —¡Quítate el uniforme y pelea como hombre! –le dijo Jorge a Torrentes–. Allí se inició el reto.

  9. Die verpleegster se terapeutiese funksie

    Directory of Open Access Journals (Sweden)

    D.C. Harrington

    1980-09-01

    Full Text Available Ons sou hierdie praatjie graag wou inlei met Virginia Henderson se definisie van verpleging: “ The unique function of the nurse is to assist the individual, sick or well, in the performance of those activities contributing to health or its recovery (or to a peaceful death that he would perform unaided if he had the necessary will, strength or knowledge. And to do this in such a way as to help him gain independence as rapidly as possible.”

  10. Magnetic resonance imaging in multiple sclerosis: analysis of 107 cases; Ressonancia magnetica na esclerose multipla: analise de 107 casos

    Energy Technology Data Exchange (ETDEWEB)

    Minguetti, Guilberto [Parana Univ., Curitiba, PR (Brazil). Dept. de Clinica Medica; Iwamoto, Fabio M.; Yanai, Douglas [Parana Univ., Curitiba, PR (Brazil). Faculdade de Medicina

    1998-04-01

    The authors report a retrospective study of 107 cases of clinically proved multiple sclerosis and confirmed by magnetic resonance imaging, in a state of Brazil (Parana) which is located between the parallels 22 and 30 South. Comments are made about the age of the patients, number and location of the lesions in the brain and spinal cord. (author) 31 refs., 6 figs., 3 tabs.

  11. Illa se iactet in aula!

    Directory of Open Access Journals (Sweden)

    Bertomeu, María Julia

    2010-06-01

    Full Text Available More than a few of Kant’s contemporaries, including some of his disciples, were sharply critical of the systematic character of his philosophy, and, markedly, of the philosophical prose in which this character was expressed. Others, on the contrary, found solace in the prospect of seeing the philosopher either isolated or trapped in the purely speculative realm of the academic room, in the good —or bad— company of all the metaphysical politicians of the time: «illa se iactet in aula!» However, fearful that the walls or the metaphorical bars of the room were not enough to contain the «popular» propagation of Kant’s ideas, they completed —in line with Burke— Virgilio’s poem, distinctly alluding to surely less symbolic bars: «Illa se iactet in aula Aeolus, et clauso ventorum carcere regnet». Kant replied in time, writing both to each group separately and to everyone at once. But he did it always from his fiercely held conviction about the importance of both a philosophical theory and a methodological discipline, which, even when «unpopular» in the beginning, he considered essential elements of a moral and political practice that was so hostile toward moral paternalism as it was to its counterpart, a (paternalistic political despotism.

    No pocos contemporáneos de Kant, incluidos algunos de sus discípulos, fueron pródigos en la crítica mordaz del carácter sistemático de su filosofía, y señaladamente, de la prosa filosófica en que ese carácter se expresaba. Otros, en cambio, no se privaron de manifestar el deseo de ver al filósofo aislado o acorralado en el recinto puramente especulativo del aula académica, en la buena —o en la mala— compañía de todos los políticos metafísicos de la época: «illa se iactet in aula!» Pero, temerosos de que los muros o los barrotes metafóricos del aula no bastaran a contener la propagación «popular» de las ideas del filósofo, completaron

  12. Analysis of the essential oils from Calendula officinalis growing in Brazil using three different extraction procedures Análise por CG-EM do óleo essencial de Calendula officinalis cultivado no Brasil utilizando-se três diferentes processos de extração

    Directory of Open Access Journals (Sweden)

    Zilda Cristina Gazim

    2008-09-01

    Full Text Available Terpenes and aroma volatiles from flowers of Calendula officinalis cultivated in southeastern Brazil were obtained by steam distillation (SD, headspace-cold finger (HS-CF extraction and headspace solid-phase microextraction (HS-SPME coupled with gas chromatography and mass spectrometric analysis. The dried flowers contained 0.1% oil. Kovats indices and mass spectra were used to identify 27 individual components in the various volatile fractions. The main components present in the volatile fractions of the C. officinalis flowers, obtained by SD, HS-SPME, and HS-CF, were δ-cadinene (22.5, 22.1, and 18.4 % and γ-cadinene (8.9, 25.4, and 24.9 % while 20.4 % of α-cadinol was seen only after SD extraction.Terpenos e aromas voláteis das flores de Calendula officinalis cultivados no sudoeste do Brasil foram isolados por arraste a vapor (SD, dedo frio (HS-CF e micro extração em fase sólida (HS-SPME acoplada à espectrometria de massas. As flores secas da C. officinalis contêm 0,1% de óleo essencial e foram identificadas 27 substâncias químicas através do cálculo do índice de Kováts e interpretação dos espectros de massas. As substâncias majoritárias presentes no óleo essencial das flores de C. officinalis, obtido por SD, HS-SPME e HS-CF foram δ-cadinene (22,5; 22,1 e 18,4 % γ-cadinene (8,9, 25,4 e 24,9 % e 20.4 % de α-cadinol foi observado apenas na extração por arraste a vapor.

  13. Mutual cooperation with Brazil

    International Nuclear Information System (INIS)

    Orstein, Roberto M.

    1998-01-01

    The history of the nuclear cooperation between Brazil and Argentina is outlined in the framework of the changing political circumstances. Reference is made to the agreements between both countries and to its implementation

  14. Energy Education in Brazil.

    Science.gov (United States)

    Messick, Rosemary; de Paiva, Terezhina Villela O'Grady

    1980-01-01

    Compares energy education in Brazil and the United States. Topics discussed include the Brazilian setting, government initiatives, dependence on foreign fuel sources, public reaction, schools and energy education, and mass media involvement. (DB)

  15. Perdas dentarias no Brasil: analise da Pesquisa Nacional de Saude Bucal 2010

    Directory of Open Access Journals (Sweden)

    Marco Aurelio Peres

    2013-12-01

    Full Text Available OBJETIVO: Analisar a perda dentária com base em estimativas do número médio de dentes perdidos, prevalência de ausência de dentição funcional e edentulismo em adolescentes, adultos e idosos brasileiros, comparando-a com resultados de 2003. MÉTODOS: Os dados referem-se à Pesquisa Nacional de Saúde Bucal (SBBrasil 2010: adolescentes de 15 a 19 anos (n = 5.445, adultos entre 35 e 44 anos (n = 9.779 e idosos entre 65 e 74 anos (n = 7.619. O número de dentes perdidos, a prevalência de indivíduos sem dentição funcional (< 21 dentes naturais e de edentulismo (perda total dos dentes foram estimados para cada grupo etário, capitais e macrorregiões brasileiras. Foram realizadas análises de regressão logística (perdas dentárias e de Poisson (ausência de dentição funcional e edentulismo multivariáveis para identificar fatores socioeconômicos e demográficos associados a cada desfecho. RESULTADOS: A prevalência de perdas dentárias entre adolescentes foi de 17,4% (38,9% em 2002-3, variando de 8,1% entre os estratos de maior renda a quase 30% entre os menos escolarizados. Entre adolescentes, as mulheres, pardos e pretos, os de menor renda e escolaridade apresentaram maiores prevalências de perdas. Ausência de dentição funcional ocorreu em aproximadamente ¼ dos adultos, sendo superior nas mulheres, nos pretos e pardos, nos de menor renda e escolaridade. A média de dentes perdidos em adultos declinou de 13,5 em 2002-3 para 7,4 em 2010. Mais da metade da população idosa é edêntula (similar em 2002-3; maiores prevalências de edentulismo em idosos foram observadas em mulheres, nos de menores renda e escolaridade. A média de dentes perdidos em adolescentes variou de 0,1 (Curitiba e Vitória a 1,2 (interior da região Norte. Entre adultos, a menor média encontrada foi 4,2 (Vitória e a maior 13,6 (Rio Branco. CONCLUSÕES: Houve importante redução nas perdas dentárias em adolescentes e adultos em comparação com dados de

  16. Energy in Brazil

    International Nuclear Information System (INIS)

    Morato de Andrade, C.

    2003-05-01

    To prepare the Gross Domestic Product increase of 4 % in the next years, it is necessary to increase the capacity in Brazil. The government decided actions in favor of the installed capacity growth speeding up and planed investments. This document takes stock on the energy situation in Brazil, the human, political and geographical constraints and the decided measures in favor the energy development. (A.L.B.)

  17. TREE STRUCTURAL DYNAMICS OF AN AREA OF MIXED RAIN FOREST IN CAMPO BELO DO SUL, SC, BRAZIL

    Directory of Open Access Journals (Sweden)

    Silvio Formento

    2004-07-01

    Full Text Available The dynamics of the arboreal structure of a Mixed Rain Forest was assessed in the period 1992-2003. The area belongs to the “Florestal Gateados company”, located in Campo Belo do Su county, in Santa Catarina State, Southern Brazil. The surwey was carried out in 16 sample units of 10 x 60 m (600 m², where all individuals with DAP > 10 cm Were registered, measured and identified. After the analysis, it could be concluded that: Lithraea brasiliensis was the most representative specie in the structure of the forest in both analised periods, and this was related to the high values of density, dominance, frequency, besides the distribution in all forest layers. The most important species, which increased their participation in the composition and structure were, Ocotea pulchella, Matayba elaeagnoides, Clethra scabra, Clethra uleana, Sebastiana commersoniana and Araucaria angustifolia; The species which decreased in their importância in the forest structure were, Myrsine coriacea Nectandra grandiflora Capsicodendron dinissi, Ilex theezans,Ilex dumosa and Xylosma ciliatifolium. The distribuition of the trees in the forest layers changed from increasing distribution in 1992 to uniformity in 2003, enhancing the increases in density of trees of the lower layer; the forest is in a successional process, indicated particularly by the dinamycs of the structure of the lower forest layers.

  18. DETERMINAÇÃO DE RESÍDUOS DE ANTIBIÓTICOS, UTILIZANDO-SE MÉTODOS DE INIBIÇÃO MICROBIANA, ENZIMÁTICO E IMUNO-ENSAIOS NO LEITE PASTEURIZADO COMERCIALIZADO NA REGIÃO NORTE DO ESTADO DO RIO DE JANEIRO, BRASIL ANTIBIOTICS RESIDUES DETERMINATION, USING MICROBIAL INHIBITION, PROTEIN-BINDING AND IMMUNOASSAYS METHODS, IN PASTEURIZED MILK COMMERCIALIZED IN THE NORTHERN REGION OF RIO DE JANEIRO STATE, BRAZIL

    Directory of Open Access Journals (Sweden)

    Marcio Manhães Folly

    2001-02-01

    Full Text Available O leite contaminado por resíduos de antimicrobianos é considerado adulterado e impróprio para o consumo, representando riscos à saúde do consumidor, riscos tecnológicos para a indústria de laticínios e rejeição da imagem da empresa pelo consumidor. Com os objetivos de determinar a freqüência da contaminação por resíduos de antimicrobianos no leite pasteurizado dos tipos "C" e "Integral Fazenda" comercializado na região Norte do Estado do Rio de Janeiro foram analisadas 300 amostras de leite pasteurizado tipo "C" (130 amostras e "Integral Fazenda" (170 amostras oriundas dessa região, de abril de 1996 a abril de 1997. Foi encontrada uma freqüência de 4.33% de contaminação por resíduos de inibidores microbianos no leite, utilizando-se, paralelamente, o método de inibição microbiana "Delvotest P" e o de proteínas ligadoras de penicilinas "bL Snap Test". A utilização isolada do "Delvotest P" revelou uma ocorrência de 3,66 % e do "bL Snap Test" uma freqüência de 1,66%. Para as amostras "Delvotest P" positiva e "bL Snap Test" negativa, foram utilizados testes para detectar tetraciclinas ("Tetraciclina Snap Test" e gentamicina ("Cite Probe Gentamicin". Conclui-se que houve contaminação no leite de consumo, por vários tipos de antimicrobianos, na Região Norte do Estado do Rio de Janeiro.Milk contamination by antimicrobial residues occurs by profilactic or therapeutic use of such agents in the treatment of mastitis and other diseases in lactating cows, through supplementary diets in catttle feeding and from fradulent use in milk preservation. Milk contaminated by antimicrobial residues is considered adulterated and inappropriate for human consumption, since it represents a health risk for consumers, a threat to the dairy industry and causes a negative image for the contaminated products. Milk contamination is also recognized as a critical indicator of infection and a lack of microbiological quality and the possible

  19. Garçonnizando-se: o fazer-se melindrosa

    OpenAIRE

    Pinheiro, Larissa Brum Leite Gusmão

    2015-01-01

    O presente artigo tem como objetivo abordar questões de gênero relacionadas às melindrosas, elaboradas pelo artista J. Carlos na revista ilustrada Para Todos.... no período de 1920. Durante as primeiras décadas do século XX o Rio de Janeiro passou por uma série de transformações, sociais e culturais, entre elas, destacam-se aqui, as relações de gênero. As mulheres, assim como os homens, puderam ter novas experiências sobre seus corpos e relações sociais. No entanto, não vivenciaram da mesma m...

  20. Otimização do uso da água no perímetro irrigado do Gorutuba, utilizando-se a técnica da programação linear Optimization of water use in the Gorutuba irrigation district, Minas Gerais (Brazil using the linear programming model

    Directory of Open Access Journals (Sweden)

    Daniel Fonseca de Carvalho

    2000-01-01

    Full Text Available Com este trabalho, objetivou-se selecionar as culturas e os meses de plantio que proporcionem a maximização da renda do agricultor e da utilização de recursos hídricos no Perímetro Irrigado do Gorutuba, utilizando-se um modelo de programação linear cuja função-objetivo visa maximizar as receitas líquidas mensais em função da área cultivada com as culturas normalmente utilizadas na região, tendo-se como restrição a área irrigável do lote e a quantidade de água disponível. A diferença observada entre as receitas líquidas obtidas na otimização, com e sem restrição de área por cultura, foi de 15,2% nos lotes empresariais e de 10,2% nos demais lotes. O sistema de distribuição de água não limita a escolha das culturas a serem implantadas no projeto Gorutuba, mas a diferença entre a ocupação das áreas irrigadas e, conseqüentemente, as receitas líquidas observadas, foram mais influenciadas pelos sistemas de irrigação utilizados que pelas variações na capacidade de retenção de água dos solos considerados.This research was developed with the objective of selecting the crops and planting dates in order to maximize the farmers income and the water resources in the Gorutuba Irrigation District. A linear programming model was used with an objective function to maximize the monthly income as a function of the cultivated area with the crops used in the region, subjected to the restrictions of the irrigated area and the availability of water. The net income differences obtained in the optimization with and without restriction in the cultivated area of yearly crops were 15.2% and 10.2%, for the large and the small farm plots, respectively. The water distribution system does not limit the crop selection in the irrigation district. The difference in the net income caused by the crops used was influenced more by the type of irrigation systems than by the soil water holding capacity.

  1. Gênero na educação básica: quem se importa? Uma análise de documentos de políticas públicas no Brasil Gender in basic education: who cares? An analysis of the public policy documents published in Brazil

    Directory of Open Access Journals (Sweden)

    Claudia Vianna

    2006-08-01

    Full Text Available Este artigo examina a inclusão da perspectiva de gênero na educação infantil e no ensino fundamental, no período de 1988 a 2002, com ênfase no Referencial Curricular Nacional para a Educação Infantil (RCNEI e nos Parâmetros Curriculares Nacionais para o ensino fundamental (PCN. Conclui que, embora esses documentos constituam importantes instrumentos de referência para a construção de políticas públicas de educação no Brasil, a partir da ótica de gênero, contribuindo com a formação e com a atuação de professoras e professores, essas políticas não são devidamente efetivadas pelo Estado. Não existem estudos sistematizados sobre a efetividade dessas proposições e sobre possíveis mudanças na prática pedagógica de educadoras(es. Desse modo, sua legitimidade fica prejudicada, assim como a proposição de uma política que pretende garantir condições igualitárias de qualidade para o sistema de ensino e para a formação docente, a partir de um currículo nacional.This paper explores the inclusion of a gender perspective in pre-school and basic education in Brazil during 1988-2002, with a special attention to the National Curriculum Referents for Pre-School Education and the National Curriculum Guidelines for Basic Education. It concludes that, although these documents provide important orientations to build public policies in education from a gender perspective and thus contribute to the formation and practice of female and male teachers, such policies are not duly implemented by the State. Since there are no systematic studies on the effectiveness of these policies and their possible impact on the pedagogical performance of teachers, both their legitimacy and stated objectives to ensure conditions of equal quality in the teaching system and in teacher training are weakened.

  2. Diagnosis of mucoviscidosis by neutron activation analysis. Part 1; Diagnostico da mucoviscidose utilizando analise por ativacao com neutrons. Parte 1

    Energy Technology Data Exchange (ETDEWEB)

    Bellido, Luis F.; Bellido, Alfredo V

    1997-02-01

    Symptoms pathology, incidence, and gravity of the inherent syndrome called mucoviscidosis, or cystic fibrosis are described in this Part I. The analytical methods used for its diagnosis, both the conventional chemical ones and by neutron activation analysis are also summarised. Finally, an analytical method to study the incidence of mucoviscidosis in Brazil is presented. This , essentially, consists in bromine determination, in fingernails, by resonance neutron activation analysis. (author) 33 refs., 13 figs.

  3. Lifetime cost analysis in public electric light systems; Analise de custos de vida util em sistemas de iluminacao publica

    Energy Technology Data Exchange (ETDEWEB)

    Espirito Santo, Geoberto; Santos, Maria Betania G. dos [Alagoas Univ., Maceio (Brazil)

    1999-12-01

    For economical evaluation of energy conservation programs in public electric light, it is important to choose a methodology which considers the best cost/benefit ratio for concessionaires, city halls and final consumer, related to the obtained energy efficiency and the investment. This paper discusses some technical and economical advantages of the methodology used by UFAL - the federal university of Alagoas, Brazil, for public lighting efficiency in Arapiraca city, AL.

  4. Diversity of seM in Streptococcus equi subsp. equi isolated from strangles outbreaks.

    Science.gov (United States)

    Libardoni, Felipe; Vielmo, Andréia; Farias, Luana; Matter, Letícia Beatriz; Pötter, Luciana; Spilki, Fernando Rosado; de Vargas, Agueda Castagna

    2013-03-23

    Strangles is the main upper respiratory tract disease of horses. There are currently no studies on the changes in alleles of the M protein gene (seM) in Brazilian isolates of Streptococcus equi ssp. equi (S. equi). This study aimed to analyze and differentiate molecularly S. equi isolates from equine clinical specimens from southern Brazil, between 1994 and 2010. seM alleles were analyzed in 47 isolates of S. equi obtained from clinical cases of strangles (15 Thoroughbred horses, 29 Crioulo breed horses and three Brasileiro de Hipismo--BH). seM alleles characterization was performed by comparing variable region sequences of the seM gene. The alleles were also phylogenetically grouped by Neighbor-joining analysis, which demonstrated the geographic distribution of those in properties from southern Brazil. Fifteen alleles of the gene seM were found among the 47 S. equi isolates analyzed. Among these, only one allele (seM-61), which was identified in seven isolates (14.9%), was found in the database PubMLST-seM. Within the new alleles, allele seM-115 was the most prevalent, having been found in 13 isolates (27.7%), followed by allele seM-117 in 10 isolates (21.3%). In the Brazilian horse population studied, there is greater diversity of M protein alleles in S. equi isolates compared to worldwide data deposited in PubMLST-seM. Among the 15 seM alleles identified, only one allele sequence was previously published. The alleles identification is important to control the disease by guiding selection of strains for the manufacture of commercial and autogenous vaccines. Copyright © 2012 Elsevier B.V. All rights reserved.

  5. Analysis of the opening model of the Brazilian upstream business; Analise da adequacao do modelo de E e P brasileiro

    Energy Technology Data Exchange (ETDEWEB)

    Canelas, Andre [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia. Programa de Planejamento Energetico]. E-mail: canelas@ppe.ufrj.br

    2004-07-01

    This paper analyses the institutional model adopted for the reform of the oil industry in Brazil, beginning with the approval of Law n. 9.478 by the Brazilian Parliament in 1997. The reform of the Brazilian oil industry took place in the context of the reforms of the world's national economies throughout the 1980's and 1990's. From this worldwide process of reform stemmed a huge increase in the international capital flow directed to long-run investment opportunities in the economic infrastructure sectors. The aim of this paper is to analyse both the regulatory model for the oil and gas upstream activities in Brazil and the bidding model adopted at Brazil's National Petroleum Agency's auctions for the acquisition of exploration areas. This paper is dedicated, in its entirety, to Prof. Carmen Alveal (in memoriam), whose knowledge, support, encouragement and friendship were, for me, the most important of all, professionally and morally. (author)

  6. Selenium Se and tellurium Te

    International Nuclear Information System (INIS)

    Busev, A.I.; Tiptsova, V.G.; Ivanov, V.M.

    1978-01-01

    The basic methods for determining selenium and tellurium in various objects are presented. The bichromatometric determination of Te in cadmium, zinc and mercury tellurides is based on oxidation of Te(4) to (6) in H 2 SO 4 with potassium bichromate. In steels, Te is determined photometrically with the aid of KI. The determination is hindered by Fe(3), Cu(2), Bi(3) and Se(4) ions, which must be separated. The extraction-photometric determination of Te in native sulfur is carried out with the aid of 5-mercapto-3-(naphthyl-2)-1,3,4-thiadiazolthione-2 (pH=4.8-5.0). The dyed complex is readily extracted with chloroform and benzene. The spectrophotometric determination of Te in selenium is performed with the aid of 3,5-diphenylpyrazoline-1-dithiocarbamate of sodium. Te is determined in commercial indium, arsenic and their semiconductor compounds photometrically with the aid of copper diethyldithiocarbamate. The method permits determining 5x10 -5 % Te in a weighed amount of 0.5 g. The chloride complex of Te(4) with diantipyriodolpropylmethane is quantitatively extracted with dichloroethane from hydrochloric acid solutions. Thus, any amounts of Te can be separated from Se and determined photometrically. The extraction-photometric determination of Te in commercial lead and bismuth is carried out with the aid of pyrazolone derivatives, in commercial copper with the aid of diantipyridolpropylmethane, and in ores (more than 0.01% Te) with the aid of bismuthol 2. Also described is the extraction-polarographic determination of Te in sulfide ores

  7. Effects of genetics and environment on isoflavone content of soybean from different regions of Brazil Efeitos da genética e do ambiente nos teores de isoflavonóides em soja de diferentes regiões do Brasil

    Directory of Open Access Journals (Sweden)

    Mercedes Concórdia Carrão-Panizzi

    1999-10-01

    Full Text Available The effects of genetics and environmental factors on isoflavone content of soybean (Glycine max L. cultivars grown in different locations in Brazil in 1993/94 were evaluated. Seeds of different cultivars were analised by high performance liquid chromatography (HPLC. In Rio Grande do Sul (RS, Paraná (PR, and Mato Grosso do Sul (MS States, a significant difference in the isoflavone total content average of the cultivars IAS 5 and FT-Abyara (163.9, 116.4 and 79.5 mg/100 g, respectively was observed. In general, IAS 5 contained higher isoflavone than FT-Abyara. Cultivars IAS 5 and FT-Abyara grown at Vacaria, RS (28°30' S latitude with temperature average of 19°C, had the highest isoflavone concentrations (218.7 and 163.8 mg/100 g, respectively. In Palotina, PR (24°27' S latitude, where temperature average was 24°C, the isoflavone concentrations were 105.9 and 86.8 mg/100 g, respectively. The lowest isoflavone contents were observed for FT-Estrela and FT-Cristalina, (27.6 and 46.5 mg/100 g, repectively at Rondonópolis, MT (16°20' S latitude, where the temperature was 27°C.Analisaram-se os efeitos da genética e de fatores ambientais nos teores de isoflavonóides em cultivares de soja (Glycine max L. provenientes de diferentes locais do Brasil, na safra 1993/94. Sementes de diferentes cultivares foram analisadas por cromatografia líquida de alto desempenho (HPLC. Nos estados do Rio Grande do Sul (RS, Paraná (PR e Mato Grosso do Sul (MS observou-se diferença significativa entre as médias do conteúdo total de isoflavonóides das cultivares IAS 5 e FT-Abyara (163,9, 116,4 e 79,5 mg/100 g, respectivamente. Em geral, IAS 5 apresentou teores mais altos de isoflavonóides que FT-Abyara. As cultivares IAS 5 e FT-Abyara provenientes de Vacaria, RS (28°30' latitude S, com temperatura média de 19°C, apresentaram concentrações mais altas de isoflavonóides (218,7 e 163,8 mg/100 g, respectivamente. Em Palotina, PR (24°27' latitude S onde a

  8. [A better Brazil].

    Science.gov (United States)

    Lesser, Jeffrey

    2014-01-01

    Many countries in the Americas describe themselves as "nations of immigrants." In the United States, the myth of the "promised land" suggests that foreigners better themselves upon arrival because the nation is intrinsically great. In Brazil, however, the relationship between immigration and national identity is different. Many intellectuals, politicians, and cultural and economic leaders saw (and see) immigrants as improving an imperfect nation that has been tainted by the history of Portuguese colonialism and African slavery. As a result, immigrants were often hailed as saviors because they modified and improved Brazil, not because they were improved by Brazil. This "improvement" took place through absorption, mixture and with the use of increasingly flexible racial and ethnic categories.

  9. Class effects on racial inequality in Brazil

    Directory of Open Access Journals (Sweden)

    José Alcides Figueiredo Santos

    2006-01-01

    Full Text Available This article analyzes the conditioning exercised by class inequality on racial inequality in income between whites and non-whites (the latter including both pardos, or mixed race, and pretos, or blacks in Brazil. The study uses linear regression techniques aimed at unveiling the "moderating" effect of class categories in the attenuation or exacerbation of race effects on personal income. There is a racial gap favoring whites in nearly all class categories, but its effect is significantly moderated by class condition. The racial gap in income is higher among middle-class positions and especially among managers. The proletarian segments per se display the lowest racial gaps in income.

  10. the Energy in Brazil

    International Nuclear Information System (INIS)

    2003-05-01

    To face the forecasted increase of 4 % of the Gross Domestic Product, it is necessary to increase the energy capacity installed in Brazil. The action at first planned on 10 to 20 years, is oriented today on a shorter period from 2001 to 2004. The program proposes investment of 43 milliards or Reals from which 32 will come from the private sector. This report takes stock on the energy situation in Brazil, the human, political and geographical constraints and the actions in favor of the energy development. (A.L.B.)

  11. Analise van die Tswanaraaisel

    Directory of Open Access Journals (Sweden)

    S. A. Swanepoel

    1984-05-01

    Full Text Available ’n Strukturele, stilistiese en funksionele bcskrywing van die Twanaraaisel bring mee dat daar aan die volgende aspekte aandag gegee moet word: •\tWat is ’n raaisel en lioe word dit in Tswana genoem. •\tTot watter studiegebied en literere genre hoort die raaisel en watter subvorme kan vir Tswana onderskei word. •\tHoe sien die struktuur van Tswanaraaisels daar uit. •\tDeur wie, waar, wanneer en hoe word Tswanaraaisels voorgedra. •\tWatter stilistiese kenmcrke kan in Tswanaraaisels onderskei word. •\tWatter funksies vervul raaisels in ’n Tswanagcmeenskap.

  12. A transferable force field for CdS-CdSe-PbS-PbSe solid systems

    NARCIS (Netherlands)

    Fan, Zhaochuan; Koster, Rik S.; Wang, Shuaiwei; Fang, Changming; Yalcin, Anil O.; Tichelaar, Frans D.; Zandbergen, Henny W.; van Huis, Marijn A.; Vlugt, Thijs J. H.

    2014-01-01

    A transferable force field for the PbSe-CdSe solid system using the partially charged rigid ion model has been successfully developed and was used to study the cation exchange in PbSe-CdSe heteronanocrystals [A. O. Yalcin et al., "Atomic resolution monitoring of cation exchange in CdSe-PbSe

  13. Variational approach to 68 Se

    International Nuclear Information System (INIS)

    Petrovici, A.; Schmid, K.W.; Faessler, A.; Baktash, C.; Shashi, P.

    1999-01-01

    . Furthermore, our results concerning the pair structure of the wave functions of the even-spin states in chains of even-even and odd-odd N = Z nuclei in the A 60 - 80 mass region revealed a clear interplay between isovector neutron-proton and like-nucleon pairing correlations. Nevertheless, detailed aspects of these properties are sensitive to the renormalization of the effective interaction in the pairing channels. Taking advantage of our microscopic investigations on the coexistence phenomena in this mass region, which have already past many experimental tests, we address the problem of the structure of the lowest few even-spin positive-parity states in 68 Se. Also we present details of the results obtained using a few slightly different prescriptions for the effective interaction in order to illustrate the above mentioned problems. The theoretical spectrum of 68 Se for even spin positive parity states is compared with the experimental results. (authors)

  14. Eand P opportunities in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Castilho, Marcelo [National Petroleum Agency of Brasil (Brazil)

    2011-07-01

    Brazil is one of the world's largest economies and the country also has significant heavy oil reserves. This report from the National Petroleum Agency of Brazil aims at presenting the situation of the oil and gas sector in Brazil in terms of resources, production, regulatory framework and opportunities for the future. Brazil has numerous sedimentary basins at its disposal, most of them being prospected by both national and foreign companies from all over the world. Brazil has over 14 billion barrels of proven reserves, its production is 2,1 MMBbl/d and heavy oil represents almost 40% of that production. The National Petroleum Agency of Brazil is responsible for the implementation of oil sector policy with the aims of maintaining self-sufficiency, implementing good practices in terms of health and safety, and increasing local content. This paper pointed out that Brazil has an important opportunity to enhance its energy sector through the development of heavy oil.

  15. ZnMgSe/ZnCdSe and ZnMgSe/ZnSeTe distributed Bragg reflectors grown by molecular beam epitaxy

    Science.gov (United States)

    Peiris, F. C.; Lee, S.; Bindley, U.; Furdyna, J. K.

    1999-07-01

    This article investigates distributed Bragg reflectors (DBRs) based on two wide-gap II-VI semiconductor alloy combinations: ZnMgSe/ZnCdSe and ZnMgSe/ZnSeTe. Prior to fabrication of the DBRs, a prism coupler technique was used to determine the indices of refraction n of the above ternary alloys of various compositions prepared by molecular beam epitaxy (MBE). Using these values of n, two DBR systems, Zn0.66Mg0.34Se/Zn0.74Cd0.20Se and Zn0.62Mg0.38Se/ZnSe0.56Te0.44, were fabricated, each with a relatively large difference in the indices of refraction between its layer materials. It was found that although a higher reflectivity could be achieved using the ZnMgSe/ZnSeTe combination (since it manifests a larger difference in their indices of refraction Δn=0.35), the number of periods which can be deposited in this DBR system is limited due to growth difficulties that arise when combining ZnMgSe and ZnSeTe. Therefore the ZnMgSe/ZnSeTe DBR system, which was restricted to just 10 periods, yielded a modest reflectivity of 85%. On the other hand, although Δn in the ZnMgSe/ZnCdSe DBR system is smaller (Δn=0.20), it poses fewer growth difficulties, making it possible to grow DBR stacks consisting of a large number of layers without compromising the crystal quality of the structure. By growing 20 periods of the ZnMgSe/ZnCdSe DBR system, we obtained a DBR with a reflectivity as high as 98%.

  16. Brazil: anchoring the region

    International Nuclear Information System (INIS)

    Costamilan, L.C.L.

    1997-01-01

    The role of Brazil's state-run petroleum company, Petrobras, in providing a national supply of oil and natural gas and their products to Brazil was discussed. Petrobras is the sole state-run enterprise which carries out research, exploration, production, refining, imports, exports and the transportation of oil and gas in Brazil. Petrobras has built a complete and modern infrastructure made up of refineries, distribution bases, terminals and oil and gas pipelines. Recently (1995) the Brazilian National Assembly approved legislation that while confirming the state monopoly, also provides private contractors and other state-owned companies ways to participate in the petroleum sector. There exists a great potential for oil and gas in many of Brazil's 29 sedimentary basins. The regulatory legislation also created two new organs to deal with the partial deregulation of the petroleum sector, the National Board for Energy Policy and the National Petroleum Agency. The first of these will deal with policy issues, measures and guidelines regarding regional energy supply and demand and specific programs such as those affecting natural gas, fuel alcohol, coal and nuclear energy. The National Petroleum Agency will manage the hydrocarbon sector on behalf of the government. Its functions will include regulation and monitoring of the sector, managing the bidding process for concessions for exploration and production, and other related activities. The new legislation opens up new horizons for the Brazilian oil sector, providing opportunities for private investment, both domestic and foreign, as well as for new technological capabilities associated with these investments. 1 tab., 6 figs

  17. Adult Education in Brazil.

    Science.gov (United States)

    Ministerio da Educacao e Cultura, Rio de Janeiro (Brazil).

    The status and goals of adult education programs in Brazil are discussed in this report. Supplemental systems such as the Brazilian Literacy Movement (Mobral) and their results are described and evaluated. Charts detailing the evolution of literacy are shown and priorities in education are suggested. The progress of other educational entities is…

  18. English Teaching Profile: Brazil.

    Science.gov (United States)

    British Council, London (England). English Language and Literature Div.

    This review of the status of English language instruction in Brazil provides an overview of the Brazilian geographic, historical, and political context and the role of English in the society in general and in the educational system. The following topics are covered: an outline of the status of English use and instruction in the educational system…

  19. Chikungunya risk for Brazil

    Directory of Open Access Journals (Sweden)

    Raimunda do Socorro da Silva Azevedo

    2015-01-01

    Full Text Available This study aimed to show, based on the literature on the subject, the potential for dispersal and establishment of the chikungunya virus in Brazil. The chikungunya virus, a Togaviridae member of the genusAlphavirus, reached the Americas in 2013 and, the following year, more than a million cases were reported. In Brazil, indigenous transmission was registered in Amapa and Bahia States, even during the period of low rainfall, exposing the whole country to the risk of virus spreading. Brazil is historically infested by Ae. aegypti and Ae. albopictus, also dengue vectors. Chikungunya may spread, and it is important to take measures to prevent the virus from becoming endemic in the country. Adequate care for patients with chikungunya fever requires training general practitioners, rheumatologists, nurses, and experts in laboratory diagnosis. Up to November 2014, more than 1,000 cases of the virus were reported in Brazil. There is a need for experimental studies in animal models to understand the dynamics of infection and the pathogenesis as well as to identify pathophysiological mechanisms that may contribute to identifying effective drugs against the virus. Clinical trials are needed to identify the causal relationship between the virus and serious injuries observed in different organs and joints. In the absence of vaccines or effective drugs against the virus, currently the only way to prevent the disease is vector control, which will also reduce the number of cases of dengue fever.

  20. ¿De qué se mueren los ancianos en España?

    Directory of Open Access Journals (Sweden)

    Robles González, Elena

    2009-12-01

    Full Text Available Following the analyses of the standardized mortality rates, that allows to eliminate the effect of age structure, the impact of mortality is directly appreciated and the evolution of the main causes of death in the 80+ population in Spain between 1975 and 2007, is described. Using the Short-List of Eurostat, causes of death have been divided into 17 broad groups. The article analyzes the decline of mortality caused by the fall of circulatory diseases, mainly the cerebrovascular ones, and to a lesser extent, the respiratory diseases, ill-defined diseases and external causes. Inversely, in the remaining thirteen groups the mortality has increased over such period particularly, the neoplasms, nervous system diseases and mental disorders. Important differences by gender have been found, being neoplasms and respiratory diseases much higher in men, which would explain the greater men oldest-old mortality in Spain.

    Se analiza la evolución, entre 1975 y 2007, de las principales causas de muerte en la población española de 80+ años, a partir del análisis de las tasas estandarizadas de mortalidad que, al eliminar el efecto de la estructura por edad, permiten apreciar el impacto de la mortalidad. Las causas de muerte se han agrupado en 17 grandes grupos, siguiendo la Lista Abreviada de Eurostat. Se describe la caída de la mortalidad debida al descenso de las enfermedades circulatorias, (en especial las cerebrovasculares y, en menor medida, de las respiratorias, las mal definidas y las causas externas. Por el contrario, la mortalidad en los 13 grupos restantes se ha incrementado durante el período, sobre todo la relativa a tumores, enfermedades del sistema nervioso y trastornos mentales. Se constatan importantes diferencias por género, siendo los tumores y las enfermedades respiratorias muy superiores en los hombres. Ello explicaría la mayor mortalidad masculina de la población anciana. [fr] On analise l’évolution des principales

  1. Diabetes Care in Brazil.

    Science.gov (United States)

    Coutinho, Walmir F; Silva Júnior, Wellington Santana

    2015-01-01

    The diabetes epidemic affects most countries across the world and is increasing at alarming rates in Latin America. Nearly 12 million individuals have diabetes in Brazil, and the current prevalence ranges from 6.3% to 13.5%, depending on the region and the diagnostic criteria adopted in each study. To provide an overview of diabetes care in Brazil, focusing on studies of diabetes epidemiology, prevalence of patients within the standard targets of care, and economic burden of diabetes and its complications. SciELO and PubMed searches were performed for the terms "diabetes," "Brazil," "Brazilian," and "health system"; relevant literature from 1990 to 2015 was selected. Additional articles identified from reference list searches were also included. All articles selected were published in Portuguese and/or English. Recent studies detected a prevalence of gestational diabetes mellitus of nearly 20%. Among patients with type 1 diabetes, almost 90% fail to reach target of glycemic control, with less than 30% receiving treatment for both hypertension and dyslipidemia. More than 75% of patients with type 2 diabetes are either overweight or obese. Most of these patients fail to reach glycemic targets (42.1%) and less than 30% reached the target for systolic and diastolic blood pressure, body mass index, or low-density lipoprotein cholesterol. Only 0.2% of patients reach all these anthropometric and metabolic targets. Brazil is the fourth country in the world in number of patients with diabetes. Regardless of the diabetes type, the majority of patients do not meet other metabolic control goals. The economic burden of diabetes and its complications in Brazil is extremely high, and more effective approaches for preventions and management are urgently needed. Copyright © 2015. Published by Elsevier Inc.

  2. [Violence clusters in Pernambuco, Brazil].

    Science.gov (United States)

    de Lima, Maria Luiza C; Ximenes, Ricardo A de A; Feitosa, Carlos Luna; de Souza, Edinilsa Ramos; de Albuquerque, Maria de Fátima P Militão; Barros, Maria Dilma de Alencar; de Souza, Wayner Vieira; Lapa, Tiago Maria

    2005-08-01

    To analyze the spatial distribution of homicide mortality rates among males 15 to 49 years old in the state of Pernambuco, Brazil, for the periods of 1980 to 1984 and 1995 to 1998, and to identify violence clusters. Mortality data were obtained from the Brazilian Ministry of Health's Mortality Information System. The mean homicide mortality rate was estimated for each municipality in the state for the two periods. The Moran coefficient was calculated to determine spatial autocorrelation. (The Moran coefficient ranges from -1 to +1, with a positive coefficient indicating a cluster of similar values, and a negative coefficient indicating adjacent dissimilar values.) To identify clusters of municipalities with either high or low homicide mortality rates, the local indicator of spatial association (LISA) was used. Finally, a Moran map was constructed to identify municipalities with statistically significant LISA values and to identify clusters of municipalities with either high or low homicide mortality rates. The Moran coefficient for 1980-1984 was 0.392, and for 1995-1998 it was 0.291 (P Maconha). This study suggests that the violence clusters are not the result of the socioeconomic conditions per se, but rather the consequence of the interaction between poor economic conditions and drug trafficking.

  3. Thermally induced atomic reconstruction of PbSe/CdSe core/shell quantum dots into PbSe/CdSe bi-hemisphere hetero-nanocrystals

    NARCIS (Netherlands)

    Grodzinska, D.; Pietra, F; van Huis, M.A.; Vanmaekelbergh, D.A.M.; de Mello Donega, C.

    2011-01-01

    The properties of hetero-nanocrystals (HNCs) depend strongly on the mutual arrangement of the nanoscale components. In this work we have investigated the structural and morphological evolution of colloidal PbSe/CdSe core/shell quantum dots upon annealing under vacuum. Prior to annealing the PbSe

  4. Condições de saúde, estilo de vida e características de trabalho de professores de uma cidade do sul do Brasil Health conditions, lifestyles and occupational characteristics of teachers in a city in southern Brazil

    Directory of Open Access Journals (Sweden)

    Alexandre Carriconde Marques

    2013-03-01

    Full Text Available Diversas complicações de saúde têm sido evidenciadas entre professores e há pouca informação sobre os hábitos de estilo de vida desses indivíduos. O objetivo deste trabalho foi investigar a condição de saúde, o estilo de vida e as características de trabalho dos professores municipais de Bagé (RS. Realizou-se um estudo transversal com 414 professores através de questionários padronizados autoaplicáveis. Utilizou-se analise descritiva e bivariada dos dados. O grupo de docentes caracterizou-se como feminino (96,1% e de meia idade (média = 40,1 ± 9,4 anos. O tempo de docência foi de 12,4 ± 9,5 anos, apresentaram alta escolaridade (59,0% pós-graduado, carga de trabalho elevada (média = 31,7 ± 10,5 h/sem e 38,0% apresentou absenteísmo. A percepção de saúde foi boa para 38,5%. Foram fisicamente ativos (65,2%, com excesso de peso (32,3% sobrepeso e 14,4% obesos, baixo consumo de frutas e verduras (79,6%, nível médio de estresse de 14,9 ± 6,6 pontos e 20,3% relataram hipertensão arterial. A percepção de saúde esteve associada com o tempo de docência, absenteísmo, atividade física, número de refeições, nível de estresse e hipertensão arterial. A prevalência de professores que avaliaram sua saúde negativamente foi baixa, entretanto, foram identificados comprometimentos em alguns aspectos do estilo de vida que podem prejudicar a saúde desses indivíduos.Various health complications have been identified among teachers and there is little information available about their lifestyle habits. The scope of this study was to investigate health conditions, lifestyles and occupational characteristics of municipal teachers in Bagé in the south of Brazil. A cross-sectional study involving 414 teachers was conducted by asking the teachers to fill out a standardized questionnaire. Descriptive and bivariate analysis techniques were employed. Most teachers were females (96.1% and the mean age was 40.1 years (SD 9.4. Average

  5. The Ag2Se-HgSe-GeSe2 system and crystal structures of the compounds

    International Nuclear Information System (INIS)

    Parasyuk, O.V.; Gulay, L.D.; Romanyuk, Ya.E.; Olekseyuk, I.D.; Piskach, L.V.

    2003-01-01

    The phase diagram of the quasi-ternary Ag 2 Se-HgSe-GeSe 2 system at 298 K was investigated using X-ray phase analysis and metallography. The formation of five intermediate quaternary phases β (Ag ∼7.12-∼6.32 Hg ∼0.44-∼0.82 GeSe 6 ), γ (Ag ∼6.08-∼4.00 Hg ∼0.96-∼2.00 GeSe 6 ), δ (Ag 3.4 Hg 2.3 GeSe 6 ), ε (Ag ∼2.24-∼2.00 Hg ∼2.88-∼3.00 GeSe 6 ) and ∼Ag 1.4 Hg 1.3 GeSe 6 was established. The crystal structure of the β-phase (for the Ag 6.504 Hg 0.912 GeSe 6 composition) was determined using X-ray single crystal diffraction. It crystallizes in a cubic structure (space group F4-bar 3m) with the lattice parameter a=1.09026(4) nm. The crystal structure of the δ-phase (Ag 3.4 Hg 2.3 GeSe 6 ) was determined using X-ray powder diffraction (space group F4-bar 3m, a=1.07767(8) nm). The crystal structure determination of the γ-phase (space group Pmn2 1 ) was performed for the compositions Ag 5.6 Hg 1.2 GeSe 6 , Ag 4.8 Hg 1.6 GeSe 6 and Ag 4 Hg 2 GeSe 6 using X-ray powder diffraction. The crystal structure of the LT-Hg 2 GeSe 4 compound (space group I4-bar , a=0.56786(2), c=1.12579(5) nm) was confirmed by powder diffraction also.

  6. Selenium plasma levels in hemodialysis patients: Comparison between North and Southeast of Brazil

    OpenAIRE

    Stockler-Pinto,Milena Barcza; Malm,Olaf; Azevedo,Suellen Regina Geraldo; Farage,Najla Elias; Dorneles,Paulo Renato; Cozzolino,Silvia Maria Franciscato; Mafra,Denise

    2014-01-01

    Introduction: Patients with chronic kidney disease present selenium (Se) plasma deficiency which is an essential trace element with important biological functions and, the best known biological role is attributed to its presence in the antioxidant enzyme, glutathione peroxidase (GPx). The Se content of foods depends on soil and some authors have suggested that Amazon soil (North Brazilian region) has high Se concentrations when compared to other regions of Brazil. Objective: The objective of ...

  7. 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)

  8. Loading and stress analysis of gas pipeline structures; Analise de esforcos e tensoes em estruturas de gasodutos durante despressurizacoes

    Energy Technology Data Exchange (ETDEWEB)

    Frisoli, Caetano [TRANSPETRO - PETROBRAS Transporte S.A., Rio de Janeiro, RJ (Brazil); Frota, Cristiane Souto [TBG - Transportadora Brasileira Gasoduto Bolivia Brasil S.A., Rio de Janeiro, RJ (Brazil); Silva, Luis Fernando Figueira da; Carvalho, Marcio da Silveira [Pontificia Univ. Catolica do Rio de Janeiro, RJ (Brazil). Dept. de Engenharia Mecanica; Savi, Marcelo Amorim [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia. Dept. de Engenharia Mecanica; Pacheco, Pedro Manuel Calas Lopes [Centro Federal de Educacao Tecnologica do Rio de Janeiro (CEFET-RJ), Rio de Janeiro, RJ (Brazil)

    2003-07-01

    Repairing and maintenance activities on Bolivia-Brazil gas pipeline often need blow down lines. During the blow down process, the high speed of discharging gases imposes great efforts to the structures. A detailed analysis of this situation is essential for a safe operation. This paper describes two phases of a project, developed under TBG coordination. It consists in analyzing the stress and forces involved in this operation, in order to design facilities to blow down pipes and develop a safe blow down procedure for the gas pipeline. The first phase consists of a supersonic flowing simulation in the blow down gas pipeline device. The pressure behavior, mass flow and the speed at the device's ending point are calculated for different operational conditions. In the second phase, the equivalent loading caused by blow down operations is used as input in a stress analysis program to determine stress, critical sessions evaluation and material recommendations for blow down devices. (author)

  9. Equine influenza in Brazil

    Directory of Open Access Journals (Sweden)

    Patricia Filippsen Favaro

    2016-06-01

    Full Text Available Equine influenza virus (EIV (H3N8 and H7N7 is the causative agent of equine influenza, or equine flu. The H7N7 subtype has been considered to be extinct worldwide since 1980. Affected animals have respiratory symptoms that can be worsened by secondary bacterial respiratory infection, thereby leading to great economic losses in the horse-breeding industry. In Brazil, equine influenza outbreaks were first reported in 1963 and studies on hemagglutination antibodies against viral subtypes in Brazilian horses have been conducted since then. The objective of the present review was to present the history of the emergence of EIV around the world and in Brazil and the studies that have thus far been developed on EIV in Brazilian equines.

  10. Antagonistic activity of Lactobacillus acidophilus LA10 against Salmonella enterica serovar Enteritidis SE86 in mice

    Directory of Open Access Journals (Sweden)

    Diane Scapin

    2013-01-01

    Full Text Available Salmonella enterica serovar Enteritidis is one of the main pathogens responsible for foodborne illness in Brazil. Probiotic bacteria can play a role in defense and recovery from enteropathogenic -infections. In this study, the ability of Lactobacillus acidophilus LA10 to colonise and exert anta-gonistic effects in the gastrointestinal tract was tested before and during experimental infection in conventional mice contaminated with S. Enteritidis (SE86. A dose of 0.1 mL containing 10(8 viable cells of SE86 and L. acidophilus LA10 was orally administered by gavage to mice. The experiment was divided into groups. As a negative control, Group 1 was administered only sterile saline solution. As a positive control, Group 2 was administered only SE86. Group 3 was first administered SE86, and after 10 days, treated with L. acidophilus LA10. Group 4 was first administered L. acidophilus LA10,and after 10 days, challenged with SE86.The results demonstrated that a significant number of SE86 cells were able to colonize the gastrointestinal tract of mice, specifically in the colon and ileum. L. acidophilus LA10 demonstrated an antagonistic effect against SE86, with better results observed for Group 3 over Group 4. Thus, L. acidophilus LA10 shows potential antagonistic effects against S. Enteritidis SE86, especially if administered after infection.

  11. Magnetic Storms in Brazil

    Science.gov (United States)

    Pinheiro, K.; Siqueira, F.

    2013-05-01

    Magnetic storms result from atypical processes generated in the Sun, the interaction between the solar wind and the Earth's magnetosphere and the energization of particles in the magnetosphere. As consequence, magnetic storms may cause problems on radio communication, in satellites, GPS imprecision and induce geomagnetic induced currents that my cause saturation and damage of transformers. Magnetic storms are measured in magnetic observatories, where it is possible to observe large variations in the horizontal magnetic field. These variations are most visible in equatorial or low-latitude magnetograms. In this work, we use low latitude dataset from three magnetic observatories in Brazil: Vassouras (Rio de Janeiro) that presents data since 1915, Tatuoca (Pará) since 1957 and data from a new magnetic observatory that was installed in Pantanal (Brazil) on the 22nd October 2012. Vassouras and Pantanal observatories are in the region of the South Atlantic Magnetic Anomaly. External magnetic field interactions in this region are poorly known due to the lack of magnetic data. Tatuoca observatory is located in another important geomagnetic region: the equatorial electrojet. In this work we present the data processing of the recent geomagnetic time series in Pantanal Observatory and its comparison with Vassouras and Tatuoca observatories in Brazil. We analyse the main characteristics of magnetic storms in these observatories, as the sudden commencement and their duration.

  12. Construção, teste e analise termodinamica de um sistema de refrigeração de amonia utilizando-se um compressor para R-12 adaptado

    OpenAIRE

    Joel Carlos Zukowski Junior

    1995-01-01

    Resumo: O Laboratório de Termodinâmica e Energia - FEAGRI - UNICAMP em cooperação com empresas do setor de refrigeração e da Universidade de Oriente de Cuba estão desenvolvendo pesquisas com vistas a criar alternativas de substituição aos CFC's. Fundamentalmente, um compressor aberto, bloco V, para R-12 foi adaptado e aplicado num sistema de refrigeração usando amônia como refrigerante para a produção de água gelada, visando a produção de ar frio. Para tanto foi necessária: a) verificar a res...

  13. Geomicrobiology and Biochemical Composition of Two Sediment Cores from Jurujuba Sound - Guanabara Bay – SE Brazil

    Directory of Open Access Journals (Sweden)

    Mirian Araújo Carlos Crapez

    2010-01-01

    Full Text Available O objetivo deste trabalho foi quantificar os biopolímeros associados as enzimas esterase e identificar a atividade respiratória das bactérias em dois testemunhos amostrados na Enseada de Jurujuba, Baía de Guanabara, Rio de Janeiro. A concentração dos biopolímeros foram dez vezes menos do que o relatado na literatura, tornando necessária a criação e estabelecimento de novos índices dos níveis de eutrofização, compatível com os sistemas costeiros brasileiros. A relação representante bioquímicas dos testemunhos foi equivalente aos dados disponíveis para ambientes costeiros marinhos. A quantidade de enzimas esterases no sedimento mostrou que a mineralização de biopolímeros está em processo contínuo, mesmo com a preferência do metabolismo anaeróbico. Apesar do fato, dos estudos em geomicrobiologia serem incipientes, os resultados deste estudo indicam a possível aplicação da microbiologia para proporcionar uma melhor compreensão dos processos geoquímicos em ambiente tropical.

  14. Geologic evolution of the SE.23 Sheet - Belo Horizonte, MG, Brazil

    International Nuclear Information System (INIS)

    Pereira, A.D.C.; Fonseca, E.G. da; Braz, E.R.C.

    1987-01-01

    The aim of this paper is to present a synthesis of the geologic evolution in the Belo Horizonte Sheet comprising an area about 281.210 Km 2 . Rb-Sr and K-Ar isotope dating methods are used for age estimation of geologic deposits. The geologic evolution of the cratonic area is reflected by a stable central nucleus surrounded by marginal orogenic belts. In the central area were recognized greenstone belts structures involved by granite terrains and bordered by a granulitic region. The framework of the Sao Francisco Craton involves events of metamorphism, granitogenesis, sedimentary, volcanism and plutonism developed in the Early to Late Proterozoic. The stratigraphic column is complemented by Late Jurassic-Early Cretaceous continental deposits belonging to Parana-Basin. (M.V.M.)

  15. Sedimentary provenance in the southern sector of the São Francisco Basin, SE Brazil

    Directory of Open Access Journals (Sweden)

    Gustavo Macedo de Paula-Santos

    Full Text Available ABSTRACT: We present new Sm-Nd, U-Pb and Hf isotope geochronological data for the siliciclastic rocks in the southern sector of the São Francisco Basin. An abrupt change in the Sm-Nd data is observed from the Carrancas Formation’s oligomitic conglomerates (TDM ages between 2.7 and 3.3 Ga; εNd(550 Ma values between -25.09 and -17.98, its finer facies, and the finer facies of the the Moema Laminite (TDM ages from 1.4 to 2.1 Ga; εNd(550 Ma values between -9.46 and -5.59. No further significant changes in the Sm-Nd data occur farther upwards in the Bambuí Group (Sm-Nd TDM ages within the 1.3-2.0 Ga interval; εNd(550 Ma values from -9.53 to -4.09, showing a lack of reorganization in the source areas throughout the deposition of the basin. This is yet another argument to dismiss an unconformity within the Bambuí Group. The presence of the index fossil Cloudina sp. in the lower Sete Lagoas Formation makes the glaciation probably Late Ediacaran in age. U-Pb ages for detrital zircons of the Bambuí Group range from the Archean to the early Ediacaran, but the current data is insufficient to distinguish between the contribution from sources in the Brasília and Araçuaí belts.

  16. Late Holocene evolution and increasing pollution in Guanabara Bay, Rio de Janeiro, SE Brazil

    International Nuclear Information System (INIS)

    Vilela, Claudia Gutterres; Figueira, Brígida Orioli; Macedo, Mariana Cardoso; Baptista Neto, José Antonio

    2014-01-01

    Highlights: • Foraminifera along the cores confirmed increasing of pollution toward the present. • Foraminifera correlated studies inferred loss of old mangrove systems. • Radiocarbon dates integrated to sediment rates marked the European settlement. • Ammonia tepida is dominant at upper intervals, as a human pollution bioindicator. • Buliminella elegantissima was dominant at core deeper samples before the discovery by Europeans. - Abstract: To detect changes during the Late Holocene and historical periods in Guanabara Bay, the paleoecological and ecological parameters from nine cores were analysed using foraminiferal assemblages and bioindicators. Using radiocarbon dates and sedimentation rates in the cores, it was possible to detect the first Europeans’ arrival in the 16th century. Foraminiferal bioindicators of organic matter and human pollution were correlated with radiocarbon dates from the bottom and middle of the cores in each region and revealed an increase in pollution along the cores. The foraminiferal results were compared with total organic carbon (TOC) values before, during and after European settlement and showed a historical increase in organic matter. Pristine mangrove ecosystems are characterised by agglutinated species such as Ammotium salsum, and the presence of this organism also confirmed the extent of historical mangrove forests. Ammonia tepida, Buliminella elegantissima and Elphidium excavatum were the dominant species, but they presented distinct patterns over time. B. elegantissima was dominant before the European influence in older sediments with high organic matter content that were found at deeper intervals. A. tepida is dominant in younger sediments at upper intervals, as a bioindicator of human pollution

  17. Geochemistry of metavolcanic rocks in the Archean Greenstone Belt of Identidade, SE Para, Brazil

    International Nuclear Information System (INIS)

    Souza, Zorano S.

    1995-01-01

    The paper discusses the geochemistry of the ultramafic and mafic volcanic rocks of the Identidade belt (IDB), in order to present hypothesis about their possible sources and magmatic evolution. The chemical data were obtained by ICP method. The analytical errors are less then 5% for major elements, less than 10% for the minor ones, and around 5% for trace elements. Save additional data from the meta ultramafic rocks of the Seringa belt, situated 100 km to the west of the IDB, were also considered. The XLFRAC program was employed for fractional crystallization modelling of major elements. For trace element modelling the equations of fractional crystallization and equilibrium partial melting were applied, using an unpublished program written in Pascal. 10 figs. 8 tabs

  18. Phytoplankton assemblages in a reservoir cascade of a large tropical - subtropical river (SE, Brazil

    Directory of Open Access Journals (Sweden)

    MG Nogueira

    Full Text Available The phytoplankton assemblages from eight reservoirs of the Paranapanema River were studied during two consecutive years. Chlorophyceae and Bacillaryophyceae dominated in richness. The observed high number of taxa, 234, reflects the extensive sampling programme and evidences the necessity of considering the whole hydrograph basin to assess the biodiversity status of inland water ecosystems. The dams had a negative effect on phytoplankton richness, with higher number of taxa associate to riverine (non-regulated stretches. The tributary rivers also exhibited high species richness, showing the importance of considering the lateral dimension, in addition to the longitudinal one, for aquatic biota inventories in large river basins/reservoirs. Richness and diversity were also positively influenced by the connectivity with lateral wetlands (macrophyte-dominated lakes due to the periphyton influence. The phytoplankton abundance/biomass was not influenced by higher water retention time. Higher values occurred in the middle basin stretches (river-passage reservoirs due to the increase in the trophic conditions. There was a positive correlation with phosphorus. Poorer light conditions in the cascade do not limit the phytoplankton biomass, with assemblages dominated by species tolerant to turbulent conditions and high mineral turbidity. Bacillariophyceae and Cryptophyceae dominated numerically. The first group (unicellular forms was prominent in the large and oligotrophic upstream reservoirs. The second was highly abundant in the river-passage (low retention time, and more eutrophic, reservoirs. Cyanophyceae growth is probably controlled by advection processes (wash-out effect. The zooplankton does not control the phytoplankton biomass and the diversity of both groups is positively associated in the cascade. The structure of the phytoplankton assemblages showed to be a good indicator of the operationally distinct reservoirs of the Paranapanema cascade and also reflected the changes in the trophic conditions along the basin.

  19. Phenotype diversity and phylogeny of selected Scytonema-species (Cyanoprokaryota) from SE Brazil

    Czech Academy of Sciences Publication Activity Database

    Komárek, Jiří; Sant Anna, C. L.; Bohunická, Markéta; Mareš, Jan; Hentschke, G. S.; Rigonato, J.; Fiore, M.F.

    2013-01-01

    Roč. 13, č. 2 (2013), 173-200 ISSN 1802-5439 R&D Projects: GA ČR GAP506/12/1818 Institutional support: RVO:67985939 Keywords : Scytonema * taxonomy * polyphasic approach Subject RIV: EF - Botanics Impact factor: 1.627, year: 2013

  20. Economic approach of pipelines: TBG (Transportadora Brasileira Gasoduto Brasil-Bolivia) case; Analise economica de gasoduto: o caso TBG (Transportadora Brasileira Gasoduto Brasil-Bolivia)

    Energy Technology Data Exchange (ETDEWEB)

    Pinho, Celso P.; Pettendorfer, Erick P. [Transportadora Brasileira Gasoduto Bolivia-Brasil, S.A., Rio de Janeiro, RJ (Brazil)

    2005-07-01

    The objective of this paper is offer to the industry an example of successful project finance in an emergent country. The Bolivia-Brazil pipeline was projected to develop an industry of natural gas in Brazil. The total costs invested was around US$ 1, 5 billion (Brazilian side) and BID, BIRD, CAF, BEI, BNDES- Finame, Marubeni, Mediocredito with main lenders. There are tree contracts with Ship or Pay clauses that are the main guarantees of the project. We will describe the mains variables of this project and the economic model that was created to calculate the tariff and project all financial reports of Bolivia-Brazil Pipeline. (author)

  1. Colloidal PbSe/CdSe Heteronanocrystals. Atomic configuration, electronic structure and optical properties

    NARCIS (Netherlands)

    Grodzinska, D.

    2012-01-01

    This thesis focuses on the structural characterization and the opto-electronic properties of PbSe/CdSe core/shell QDs and on the structural and morphological evolution of PbSe/CdSe core/shell QDs upon thermal annealing under vacuum.

  2. Selenium (Se) supplementation on the Se status of dairy cows in the ...

    African Journals Online (AJOL)

    Selenium (Se) supplementation on the Se status of dairy cows in the Midlands of KwaZulu-Natal. ... South African Journal of Animal Science ... Accepting that a concentration of >200 ng/mL blood indicates an adequate Se intake, the recorded concentrations suggest that the cows were deficient to marginally deficient in Se.

  3. Neutron activation analysis of phytotherapic obtained from medicinal plants; Analise por ativacao com neutrons de fitoterapicos obtidos de plantas medicinais

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, Henrique S. [Universidade de Sao Paulo (USP), Ribeirao Preto, SP (Brazil). Faculdade de Ciencias Farmaceuticas]. E-mail: hs_moreira@hotmail.com; Saiki, Mitiko; Vasconcellos, Marina B.A. [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)]. E-mails: mitiko@ipen.br; mbvascon@ipen.br

    2007-07-01

    This paper determines the inorganic constituents in phytotherapic samples for posterior study of the relationship existent among the concentrations of the found elements and the their possible therapeutical effects. The samples of phytotherapic pills (Centella asiatica, Ginkgo biloba and Ginseng) were analysed by using neutron activation analysis (NAA). The As, Br, Ca, Co, Cr, Cs, Fe, K, La, Na, Rb, Sc, Se and Zn samples were determined in the phytotherapics, The Centella asiatica presented the higher concentrations of Br, Co, Cr, Fe, K, La, Na, Rb, Sc, Se and Zn. In the sample of Ginko biloba, higher levels of As and Ca were found, while in the sample ol Ginseng the element As were not detected. The found results have shown the the NAA method is appropriated for analysing this type of materials due to his simplicity, multielemental capacity and quality of the results obtained. (author)

  4. Economia do meio-ambiente : uma analise da abordagem neoclassica a partir de marcos evolucionistas e institucionalistas

    OpenAIRE

    Mauricio de Carvalho Amazonas

    1994-01-01

    Resumo:Por caracterizar-se por uma simplificação formal e por sua posição hegemônica no pensamento econômico contemporâneo, a Economia Neoclássica tem se colocado como o principal marco em teoria econômica na abordagem da Questão Ambiental. Esta dissertação visa fazer um balanço dos avanços e limitações da abordagem neoclássica em responder às questões postas pela problemática ambiental à teoria econômica. A mesma busca de solução positiva e formal, que faz com que esta abordagem tenha o méri...

  5. Interferential oscillation of longitudinal photoconductivity in InSe-GaSe heterojunctions

    International Nuclear Information System (INIS)

    Kyazymzade, A.G.; Salmanov, V.M.; Dadashova, V.V.; Agayeva, A.A.

    2005-01-01

    It is investigated the interferential oscillation of longitudinal photoconductivity along a layers of InSe in InSe-GaSe heterojunctions, manufactured by the method of planting to optical contact. It is established that the presice oscillation of photocurrent depending on the light wavelength are observed in spectrum of longitudinal photoconductivity, which are correlated with oscillation of absorption of thin wide bandgap top layers of GaSe, through which illuminates the heterojunction. Thus there is an additional strengthening of photosensitivity of InSe layers, owing to transition of nonequilibrium photoholes from InSe to GaSe under influence of a field of heterojunction

  6. Selenium plasma levels in hemodialysis patients: comparison between North and Southeast of Brazil.

    Science.gov (United States)

    Stockler-Pinto, Milena Barcza; Malm, Olaf; Azevedo, Suellen Regina Geraldo; Farage, Najla Elias; Dorneles, Paulo Renato; Cozzolino, Silvia Maria Franciscato; Mafra, Denise

    2014-01-01

    Patients with chronic kidney disease present selenium (Se) plasma deficiency which is an essential trace element with important biological functions and, the best known biological role is attributed to its presence in the antioxidant enzyme, glutathione peroxidase (GPx). The Se content of foods depends on soil and some authors have suggested that Amazon soil (North Brazilian region) has high Se concentrations when compared to other regions of Brazil. The objective of this work was to compare the Se status in hemodialysis (HD) patients from North and Southeast of Brazil. Thirty-eight patients from Southeast region (22 men and 16 women, 15% diabetic, 53.5 ± 26.4 yrs) were compared to 40 patients from North region (28 men and 12 women, 22.5% diabetic, 63.5 ± 11.9 yrs). Se in plasma was determined through atomic absorption spectrophotometry with hydride generation. The plasma Se levels in patients from Southeast region were significantly lower (17.5 ± 11.9 μg/L) when compared to patients from the North (37.1 ± 15.8 μg/L) (p region present higher plasma Se levels when compared to the patients from Southeast of Brazil. However, independently of the region, HD patients presented Se deficiency.

  7. Study of Tb2Se3-GeSe2 system

    International Nuclear Information System (INIS)

    Nasibov, I.O.; Sultanov, T.I.; Dzhalil-zade, T.A.

    1981-01-01

    The nature of Tb 2 Se 3 and GeSe 2 interaction in the whole concentration range and a number of physical and chemical properties of the new phases prepared are studied. On t basis of results of physical and chemical analysis the state diagram of the Tb 2 Se 3 -GeSe 2 system is plotted. The existence of four compounds is established, three of which (Tb 4 GeSe 8 , Tb 2 GeSe 5 , Tb 2 Ge 2 Se 7 ) melt congruently, and Tb 2 Ge 3 Se 9 melts incongruently. Polymorphism is found for Tb 4 GeSe 8 and Tb 2 GeSe 5 . Lattice parameters of compounds obtained are determined [ru

  8. International comparative analysis of E and P regulatory issues; Analise comparativa internacional de aspectos regulatorios em E e P

    Energy Technology Data Exchange (ETDEWEB)

    Martins, Erica Cristina da Fonseca; Almedia, Mariana Lessa Rego de; Baleroni, Rafael Baptista [Universidade do Estado do Rio de Janeiro (UERJ), RJ (Brazil). Faculdade de Direito

    2004-07-01

    The oil industry is one of the more global sectors of the economy, with its economic agents acting and competing at the same time in many countries. The limitation of available funds for investment and competition in global scale make the host countries adapt some elements of their concession instruments, as a way to attract greater investments. The comparison of legal framework of diverse host countries is an essential part in this process of decision and an indispensable tool to help the host countries in the dispute for the attraction of international investors. Therefore, to place Brazil in this process of global competition between States is necessary the knowledge and the comparison between the conditions offered for its legal system and offered for countries considered as models of attraction of investment. This work intends to offer a comparative study of relevant legal aspects for the oil industry, amongst them: characterization of the concession instrument; reach of the participation of the state-owned company; intervention of the State in the private management. The comparison will be made between countries with different characteristics, to obtain a consolidation of paradigms that helps the evolution of the Brazilian exploration and production legal framework. (author)

  9. Energy analysis in Cynodon dactylon (L.) Pers hay production; Analise energetica na producao de feno de Cynodon dactylon (L.) Pers

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Alessandro T. [UNIOESTE, Marechal Candido Rondon, PR (Brazil). Centro de Ciencias Agrarias]. E-mail: atcampos3@yahoo.com.br; Saglietti, Jose R.C.; Bueno, Osmar C. [UNESP, Botucatu, SP (Brazil). Facudade de Ciencias Agronomicas; Campos, Aloisio T. [EMBRAPA - Gado de leite, Juiz de Fora, MG (Brazil)

    2005-05-15

    The aim of this work was to characterize the energy consumption related to the introduction, development, hay processing and storage of Cynodon dactylon (L.) Pers allied to the analysis of the energetic efficiency. The data used in this project were collected from EMBRAPA Gado de Leite, localized in Coronel Pacheco, Minas Gerais, Brazil. The data were obtained from a seven year period of an intensive system of milk production. Energetic coefficients were used to generate the survey and several matrix components obtained from pertinent literature. The direct energy, related to the inputs, showed more efficient participation on the energetic matrix than the indirect energy and the percentages were 94.64 and 5.31, respectively. Farm tractor was the main indirect energy consumer, which is responsible for turning on all the equipment, followed by the irrigation system. The energetic efficiency presented by the whole system was 4.2, being considered positive and demonstrating that the agriculture ecosystem is sustainable. Most of the direct energy employed in this system was oil derived on fuel form. There was, however, a great consume of another oil derived energy such as fertilizer, but mainly on the nitrogen form (28.89% of the total employed energy). (author)

  10. The ethanol industry from the analysis technology road maps; A industria do etanol a partir da analise de roadmaps tecnologicos

    Energy Technology Data Exchange (ETDEWEB)

    Calil Neto, Antonio; Guimaraes, Maria Jose de Oliveira Cavalacanti; Freire, Estevao [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Escola de Quimica

    2012-07-01

    The behavior of the ethanol industry in the coming years should be buoyed by several factors, among which gain prominence: feedstock, conversion technologies and products. This article aims, from the analysis of technological road maps, is dealing with Brazil in the face of the global market, is primarily addressing the international context, to assess which technologies tend to predominate, with emphasis on the ethanol industry, addressing convergent and complementary the technology road maps, especially regarding the barriers and challenges, costs and logistics, and other broader issues that govern the production of sustainable feedstock, conversion technologies and biofuels industry, with emphasis on ethanol. Conventional biofuels today are generally not competitive with fossil fuels at market prices, except for the cane ethanol already has a good performance in economic terms. Moreover, strategies for first generation ethanol differ from those for the second generation, which is at an earlier stage of technology development and still subject to comparatively high production costs. The non-economic fundamental barrier to the development of biofuels, particularly ethanol, is the uncertainty as to its sustainability. The debate sometimes on competition with food production and the potential destruction of valuable ecosystems put biofuels in the center of the discussion about sustainability. The challenges facing the ethanol industry range from the need to implement on a large scale to reduce costs along the production chain, through the need for second-generation technologies to reach the level of market, with the behavior of these factors and others will depend on each setting route. (author)

  11. Caracterização sensorial por analise descritiva quantitativa e analise tempo-intensidade de suco e de polpa de manga (Mangifera indica L.) adoçados com diferentes edulcorantes.

    OpenAIRE

    Daniela Cardoso Umbelino

    2005-01-01

    Resumo: O Brasil possui um grande potencial de produção de sucos de frutas tropicais, entre os quais destaca-se o suco de manga. Por outro lado, a preocupação com a saúde impulsionou a pesquisa e o desenvolvimento de alimentos de baixa caloria e adoçantes não calóricos. Os edulcorantes podem produzir características sensoriais indesejáveis, sendo necessário estudá-los, individualmente, no alimento ou bebida aos quais são adicionados. Este trabalho teve por objetivo estudar o comportamento do ...

  12. Brazil: Intercultural Experiential Learning Aid.

    Science.gov (United States)

    Brigham Young Univ., Provo, UT. Language Research Center.

    This booklet was designed to facilitate interactions and communication with the people of Brazil by providing information about their customs, attitudes and other cultural characteristics which influence their actions and values. A brief description of Brazil is given, covering the following: its size and geography, history, language, economy,…

  13. Nuclear material control in Brazil

    International Nuclear Information System (INIS)

    Marzo, M.A.S.; Iskin, M.C.L.; Palhares, L.C.; Almeida, S.G. de.

    1988-01-01

    A general view about the safeguards activities in Brazil is presented. The national system of accounting for and control of nuclear materials is described. The safeguards agreements signed by Brazil are presented, the facilities and nuclear material under these agreements are listed, and the dificulties on the pratical implementation are discussed. (E.G.) [pt

  14. Upward Lightning in Brazil

    Science.gov (United States)

    Schumann, C.; Saba, M. M.; Alves, J.; Warner, T. A.; Albrecht, R. I.; Bie, L. L.

    2012-12-01

    Observations of upward lightning from tall objects have been reported since 1939. Interest in this subject has grown recently, some of it because of the rapid expansion of wind power generation. Also, with the increasing number of tall buildings and towers, there will be a corresponding increase in the number of upward lightning flashes from these structures. Reports from recent field observations are beginning to address the nature of upward lightning initiation, but much still needs to be learned. Examples are studies of upward lightning from towers in winter thunderstorms in Japan (Wang and Takagi, 2010; and Lu et al., 2009) and summer thunderstorms in Europe (Miki et al., 2005; Flache et al., 2008; and Diendorfer et al., 2009; Zhou et al., 2011) and in North America (Mazur and Ruhnke, 2011; Hussein et al., 2011; Warner, 2011, and Warner et al., 2011). Up to January 2012, no upward flash had ever been registered in Brazil. With the help of some video cameras, we recorded 15 upward lightning which started from one of the towers located on Peak Jaraguá in the city of São Paulo. This paper describes the first results of this field campaign. A combination of high-speed video and standard definition video were used to record upward lightning flashes from multiple towers in Sao Paulo, Brazil, a city located in southeastern Brazil with a population over 10 million people, an average elevation of around 800 meters above sea level, and a flash density of 15 flashes/km2/year. Observations of 15 upward flashes made with these assets were analyzed along with BrasilDAT Lightning Detection Network and a lightning mapping array (LMA) and electric field sensors.

  15. Unifocal Bone Paracoccidioidomycosis, Brazil

    Science.gov (United States)

    Correa-de-Castro, Bruna; Pompilio, Mauricio A.; Odashiro, Danilo N.; Odashiro, Maçanori; Arão-Filho, Adalberto; Paniago, Anamaria M. M.

    2012-01-01

    We report a 47 year-old man from the State of Mato Grosso do Sul, Brazil, with unifocal tibial paracoccidioidomycosis. A radiograph showed an osteolytic lesion on the tibial middle third diaphysis. The diagnosis was confirmed by histopathologic analysis, and treatment with sulfamethoxazole and trimethoprim was started. After three months, the patient showed significant clinical improvement. Ten months after treatment, the patient showed lesion bone healing. This case describes the rare occurrence of an osteolytic lesion caused by endemic Paracoccidioides brasiliensis in Latin America. PMID:22403319

  16. The fractionation of selenium isotopic exchange between Se (0) and Se (IV)

    Science.gov (United States)

    Can, T. D.; Jianming, Z.; Qin, H.; Xu, W.

    2016-12-01

    Selenium (Se) has six naturally stable isotopes, 74Se, 76Se, 77Se, 78Se, 80Se, and 82Se; with the relative abundance of 0.89%, 9.37%, 7.64%, 23.77%, 49.61%, and 8.73%, respectively. According to the previous work, the variations in δ82/76Se suggested that biogeochemical cycling in earth surface can lead to significant Se isotopic fractionation [1]. It was now believed that the abiotic and biotic reduction for Se (IV) and Se (VI) oxyanion was the main processes for Se isotope fractionation in natural systems. However, recently, the theoretical calculation by first-principles shows that equilibrium Se isotope fractionation between SeO32-and SeO42- can reach Δ82/76Se =13.3‰ at the 25 °, and have a trend of heavy Se isotopes enrichment as SeO42- > SeO3 2- > HSeO3- > SeO2 > selenoamino acids > alkylselenides > Se (0) or H2Se >HSe-[2]. So we take a new idea that the significant isotopic fractionation of Se may be caused by the combined role of Se reduction and isotopic exchange. In the past years, the study of the mechanism of Se isotope fractionation was mainly focused on the reduction of Se oxyanion, but for the fractionation by the isotope exchange between different Se speciation is poorly studied. Therefore, we take the isotope exchange between Se (0) and Se (IV) as an example, to compare the isotope fractionation of Se under the different reaction conditions. Experiment was conducted using 10 mg Se (0) particles mixed with 2 mg/L Se (IV) solution in different medium (MQ-water, 0.1mol/L and 1mol / L NaOH), and the time lasted for 96 days. The value of δ82/76Se in Se (IV) solution from the initial -1.20 ‰ to 2.22‰, 4.20‰ and 6.69‰, respectively. From this experiment we can know, with the increasement of alkalinity in medium solution, the rate for oxidation of Se (0) oxidized by the dissolved oxygen is gradually to increase, and can gain more free electrons for the reaction of the isotopic exchange between Se (0) and Se (IV), and make the rate of isotopic

  17. Thermodynamic properties of SeS

    Energy Technology Data Exchange (ETDEWEB)

    Huang, M.D.

    1977-12-01

    Mass-spectrometry and Knudsen effusion experiments were used to study the equilibrium partial pressure of SeS formed by reaction of S/sub 2/ and Se/sub 2/ which were produced by thermally decomposing a mixture of In/sub 2/S/sub 3/ and In/sub 2/Se/sub 3/ in a Knudsen effusion cell. The heat of formation of SeS(g) was determined by the second law method to be -0.6 +- 3 kcal/mole. The entropy of formation of SeS(g) was calculated from spectrographic data in Ahmed and Barrow to be 1.5 cal/degree-mole at 298/sup 0/K.

  18. Cs2UPd3Se6

    Directory of Open Access Journals (Sweden)

    George N. Oh

    2011-02-01

    Full Text Available Dicaesium uranium(IV tripalladium(II hexaselenide, Cs2UPd3Se6, crystallizes in the space group Fmmm in the Ba2NaCu3O6 structure type. The asymmetric unit comprises the following atoms with site symmetries as shown: U1 (mm2, Cs1 (222, Cs2 (m2m, Pd1 (.m., Pd2 (2mm, Se1 (m.., and Se2 (1. This layered structure contains six edge-sharing square-planar [PdSe4] units that form a hexagon. These, in turn, edge-share with [USe6] trigonal–prismatic units, forming an extended layer parallel to (010. The layers are stacked along [010]. They are staggered, and are separated by the Cs atoms. The Cs atoms are either coordinated in a square antiprism of Se atoms or are ten-coordinate, with one square face and the opposite face hexagonal.

  19. One-step synthesis of PbSe-ZnSe composite thin film

    Directory of Open Access Journals (Sweden)

    Abe Seishi

    2011-01-01

    Full Text Available Abstract This study investigates the preparation of PbSe-ZnSe composite thin films by simultaneous hot-wall deposition (HWD from multiple resources. The XRD result reveals that the solubility limit of Pb in ZnSe is quite narrow, less than 1 mol%, with obvious phase-separation in the composite thin films. A nanoscale elemental mapping of the film containing 5 mol% PbSe indicates that isolated PbSe nanocrystals are dispersed in the ZnSe matrix. The optical absorption edge of the composite thin films shifts toward the low-photon-energy region as the PbSe content increases. The use of a phase-separating PbSe-ZnSe system and HWD techniques enables simple production of the composite package.

  20. Synthesis and characterization of ZnSe:Fe/ZnSe core/shell nanocrystals

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Lin; Zhu, Jianguo, E-mail: yanglin_1028@163.com; Xiao, Dingquan

    2014-04-15

    High-quality ZnSe:Fe/ZnSe core/shell nanocrystals were prepared via a hydrothermal microemulsion technique. Effective surface passivation of monodisperse ZnSe:Fe nanocrystals is achieved by overcoating them with a ZnSe shell. The samples were characterized by means of XRD, EDX, TEM, PSD, XPS, photoluminescence, and Raman spectrum. The results show that the as-synthesized nanocrystals are cubic zinc blende ZnSe structure with high purity and the average particle size of ZnSe:Fe/ZnSe core/shell nanocrystal is larger than that of ZnSe:Fe core. The growth of ZnSe shell causes a small red shift in PL spectra, and then the PL quantum yield (QY) increases from 16% before shell growth to the maximum of 37% after increasing shell thickness up to 1.2 monolayers (ML). Moreover, both transverse optic (TO) and longitudinal optic (LO) phonon modes of ZnSe are shifted toward lower frequency as compared with the reported ones. -- Highlights: • ZnSe:Fe/ZnSe core/shell QDs were prepared by a hydrothermal microemulsion method. • ZnSe shell efficiently passivates surface defects by serving as a physical barrier. • The particle size and PL properties can be turned with the growth of ZnSe shell. • The luminescence efficiency and stability of QDs could be improved in this manner.

  1. Analise da incorporacao da perspectiva do direito humano a alimentacao adequada no desenho institucional do programa nacional de alimentacao escolar

    Directory of Open Access Journals (Sweden)

    Renata Lopes de Siqueira

    2014-01-01

    Full Text Available O fato de ser signatário de acordos internacionais que reconhecem o Direito Humano à Alimentação Adequada (DHAA e de ter inserido este direito na sua Constituição Federal, impõem ao estado brasileiro o dever de prover, proteger e promover o DHAA. Para tal, faz-se necessária a incorporação dos princípios do DHAA no processo de planejamento e execução das ações de Segurança Alimentar e Nutricional (SAN. Objetivou-se analisar o processo de incorporação da perspectiva do DHAA no novo desenho institucional do Programa Nacional de Alimentação Escolar (PNAE tomando como referência os princípios presentes no Comentário Geral No12, no Guia para Análise de Políticas e Programas Públicos de Segurança Alimentar e Nutricional sob a Perspectiva dos Direitos Humanos e na Lei Orgânica de Segurança Alimentar e Nutricional (LOSAN. Os resultados expressam que o novo marco regulatório do PNAE sinaliza para um processo de mudança de paradigma que se caracteriza por gradativo declínio da percepção do PNAE como política de caráter assistencialista e pelo incremento da concepção do benefício da alimentação escolar como um direito, com a ressalva de que a construção de um novo marco regulatório, embora condição essencial, não é suficiente para a plena realização do DHAA.

  2. Energy analysis of tubular digesters using swine residues; Analise energetica de biodigestores tubulares usando dejetos de suinos

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Alessandro Torres; Daga, Jacir [Universidade Estadual do Oeste do Parana (UNIOESTE), Marechal Candido Rondon, PR (Brazil). Grupo de Pesquisas em Ambiencia do Oeste do Parana], e-mail: atcampos3@yahoo.com.br; Campos, Aloisio Torres de [EMBRAPA Gado de Leite, Juiz de Fora, MG (Brazil). Grupo Pesquisador em Educacao Ambiental; Santos, Elenara Pinto dos; Casimiro, Evandro Luiz Nogarolli; Nagae, Ricardo Yuiti; Weiss Filho, Waldemiro [Universidade Estadual do Oeste do Parana (UNIOESTE), Marechal Candido Rondon, PR (Brazil). Centro de Ciecias Agraras

    2004-07-01

    Overcoming another financial crisis, the swine production has the great challenge, in this and next decades, of also reaching the sustainability in the ecosystem ambit. The Parana State/Brazil west area is known because of it's residues high production, with high pollution level, it possesses the added difficulty of presenting high concentration of animals, inserted in production centers in reduced areas. However, this situation reversion, changing the 'trouble called residue' in a 'energy source solution', by means of digesters, became a reality, with the initiative of some producers and researchers. Present work objective was to evaluate the energy production, by means of the digesters use, as alternative energy co-generation. The work was developed at a commercial farm located at the Parana State west area, with 1,700 sows, in an piglet unit producing, with production of 3,400 piglet per mouth. The studied system is constituted by two parallel digesters, with continuous flow and total capacity of 1,275 m3 per digester, with 30 days of hydraulic retention time. The generated biogas feeds a 4.1 cc engine, with six cylinders, 80 cv, 3,600 rpm, coupled to an generator, that constitutes an 50 kW electric engine. The system promoted a 58% reduction of chemical demand of oxygen. The daily gas production estimated was 208 m3, with production of electric energy of 35.2 kWh per day. For most of the year, the system has the potential of provisioning the farm of electricity for all its needs, promoting economy that is transformed into income for the activity. (author)

  3. Analise de risco e retorno: o índice “beta" como medida de risco sistemático

    Directory of Open Access Journals (Sweden)

    Luzia Maria Mazzeo

    1988-08-01

    Full Text Available This study shows the validity of the index "beta" as a measure of systematic risk in financial markets. It discusses the theoretical model of asset valuation and the close correlation between asset prices and their risk levels. O presente estudo mostra a validade do índice "beta" como medida de risco sistemático no mercado financeiro. Discute-se modelo teórico de avaliação de ativos -CAPM -e a estreita correlação existente entre os preços dos ativos e seus respectivos níveis de risco.

  4. O que seria uma gramatica da enunciação? A proposta de uma analise transversal.

    Directory of Open Access Journals (Sweden)

    Valdir do Nascimento FLORES

    2013-09-01

    Full Text Available Este texto apresenta uma proposta de abordagem da enunciação que busca estudar a língua em diferentes níveis da análise linguística. Desenvolve-se o conceito de transversalidade enunciativa cuja característica primordial é descrever o uso linguístico relacionando as unidades dos níveis da análise linguística entre si dentro do mesmo nível e em níveis diferentes.

  5. Estudo e analise comparativa de algumas caracteristicas de arquitetura entre os sistemas holonicos de manufatura e a manufatura agil

    OpenAIRE

    Marcelo Moretti Fiorini

    2000-01-01

    Resumo: o trabalho apresenta as características conceituais do Sistema de Manufatura Ágil e do Sistema de Manufatura Holônico, bem como aspectos importantes de simulação de eventos discretos. Neste trabalho fez-se a comparação das arquiteturas de dois tipos de sistemas de manufatura: Holônico e Ágil. A comparação foi realizada através de ferramenta computacional de Simulação de Processos (usando o software Arena), com a construção de modelos dos dois sistemas. O ponto de partida para os model...

  6. Fuelwood utilization in Brazil

    International Nuclear Information System (INIS)

    Brito, J.O.

    1997-01-01

    The annual consumption of fuelwood in Brazil is approximately equal to 180 million oil barrels, or 13.3% of all Brazilian primary energy use. Fuelwood consumption in the country is greater than the use of wood for industrial use. Fuelwood taken from existing forest has been a very common activity in Brazil. Forest plantations to support the Brazilian fuelwood consumption have not been important. As fuelwood consumption in the country is expected to increase in the future, it is important to increase the supply of wood by sustainable use of the existing natural forests. Even if they are far from the centers of consumption, these are only available reserves capable of supporting the Brazilian future fuelwood requirements. For this reason it is necessary to use advanced technology to convert the energy of wood efficiently into a form (such as electricity) to carry it to the centers of consumption. In addition, forest plantations would be established in the available areas, mainly for specific uses, as for charcoal production for the pig-iron and steel industries. In all the above plans, at least, the US3/2 billion/year that represents the current Brazilian fuelwood consumption should be returned to rehabilitate the forest growing stock. In addition, it would be used to stimulate the development and use of the most suitable systems of fuelwood conversion, improving the efficiency of energy production. (author)

  7. EPR of SeO2- and SeO3- radicals in alkaline borate glasses with 77Se isotope

    International Nuclear Information System (INIS)

    Galimov, D.G.; Tarzimanov, K.D.

    1977-01-01

    Alkaline borate glasses with 77 Se were investigated in order to establish the nature of selenium compounds and radicals in glasses. The relationship between alkali ions and the oxygen radical of selenium was determined by decoding the hyperfine structure of the alkaline borate glass EPR spectra obtained before and after γ-irradiation. The irradiated and non-irradiated glasses were characterized by hyperfine splitting of the EPR lines from the α- and β centres. Moreover, the irradiated samples were noted to have a line doublet (signal phi). With intenser reduction conditions of glass fusion, the intensities of α, β, and phi signals were noted to decline. This confirmes the suggestion that these centres were caused by oxygen compouds. The authors concluded that α and β signals were due to the paramagnetic centres of SeO 2 - and [SeO 2 - ]R + , and phi signal to the SeO 3 - radicals

  8. Structure of GeSe4-In and GeSe5-In glasses

    Science.gov (United States)

    Kaban, I.; Jóvári, P.; Petkova, T.; Petkov, P.; Stoilova, A.; Hoyer, W.; Beuneu, B.

    2010-10-01

    (Ge0.2Se0.8)100 - xInx and (Ge0.17Se0.83)100 - xInx (x = 0, 5, 10, 15 at.%) chalcogenide glasses have been studied with high-energy x-ray diffraction, neutron diffraction and extended x-ray absorption spectroscopy at Ge, Se and In K-edges. The experimental data were modelled simultaneously with the reverse Monte Carlo simulation method. GeSe4/2 tetrahedra are shown to be the main structural units in the binary and ternary glasses investigated. Indium bonds to the excess Se atoms in the ternary Ge-Se-In glasses. While the majority of In atoms have three Se neighbours, some In atoms may be tetrahedrally coordinated by Se.

  9. Como Perseu se defendeu de Medusa?

    Directory of Open Access Journals (Sweden)

    Rose Lumertz de Freitas

    2012-04-01

    Full Text Available Na psicanálise francesa, principalmente com Lacan, o conceito de falta passou a ser de grande importância. Ao que, então, perguntamos: o que é a falta? E quando esta falta? O que acontece? O que acontece quando o não especularizável não está excluído, se fazendo, assim, especular? Quando Perseu vai ao encontro de Medusa, guiando-se por sua imagem refletida em um espelho de bronze polido, segurado por Atena, como pôde este herói defender-se de Medusa? Qual foi a forma encontrada por ele para se defender da presença do objeto que introduz a dimensão do real nu?

  10. Solving the shape conundrum in $^{70}$Se

    CERN Multimedia

    We propose a multi-step Coulomb-excitation study of $^{70}$Se at HIE-ISOLDE using the $^{208}$Pb( $^{70}$Se, $^{70}$Se*)$^{208}$Pb* reaction at a safe energy of 5.0 MeV/u. We aim at a precise measurement of the $\\left \\langle 2^{+}_{1} \\hspace{0.1cm} || \\hspace{0.1cm}\\hat{E}2 \\hspace{0.1cm} || \\hspace{0.1cm}2^{+}_{ 1} \\right \\rangle$ diagonal matrix element as well as gaining information on additional matrix elements. Such information will shed light onto the shape conundrum of the 2$^{+}_{1}$ state in $^{70}$Se as well as foreseeing the opportunity for a more detailed understanding of the shape-coexistence phenomenon in this region.

  11. The population of Brazil

    Directory of Open Access Journals (Sweden)

    João Yunes

    1972-12-01

    Full Text Available In 1970 the population of Brazil with 94,508,554 inhabitants was extreme youth, since 42.67% was composed of children under 14 years old. In that year the proportion of female was 50.2%. The population density increased from 1.17 inhabitants /km² in 1872 to 11.18 in 1970, and in this last year the range was 1.03 in the North region and 43.90 in the South-East region. The urban population increased from 31.24% in 1940 to 55.98% in 1970 and for the first time the rural population was smaller than the urban population. In 1950 concerning with marital status 39% of the population 15 years old and over was single and 54% married. In 1970 this rate was respectively 35.4% and 56.6%. The population economically inactive increased from 49.17% in 1940 to 52.24% in 1970. The literacy ratio increased from 43% in 1940, to 48% in 1950 and 68.04% in 1970. The crude birth rate was 43/1000 live births in 1950 and fell to 37.7/1000 in 1970. The fertility rate decreased from 179.3/1000 women (15-49 years old} to 156.7/1000 in 1960/70. The crude death rate decreased from 20.60/1000 inhabitants in 1940/50 to 9.4/1000 in 1960/70. The infant mortality rate still remains high: 171/1000 live births in 1940/50 and 170/1000 in 1971. Concerning with the size of the cities, 8 in 1940 had 100,000 or more inhabitants and in 1970 this number increased to 94 cities. The population growth increased from 2.38% in 1940/50, to 2.99% in 1950/60 and 2.83% in 1960./70. Brazil is the first country in population size in Latin America and the eighth in the world. Concerning his area, Brazil is the fifth country in size.

  12. Lustre filesystem for CMS storage element (SE)

    International Nuclear Information System (INIS)

    Wu, Y; Kim, B; Avery, P; Fu, Y; Bourilkov, D; Taylor, C; Prescott, C; Rodriguez, J

    2011-01-01

    This paper presents our effort to integrate the Lustre filesystem with BeStMan, GridFTP and Ganglia to make it a fully functional WLCG SE (Storage Element). We first describe the configuration of our Lustre filesystem at the University of Florida and our integration process. We then present benchmark performance figures and IO rates from the CMS analysis jobs and the WAN data transfer performance that are conducted on the Lustre SE.

  13. Los jóvenes se incomunican

    OpenAIRE

    Margarita Ferro

    2015-01-01

    Hace años los jóvenes se comunicaban y relacionaban con sus amigos del barrio o de la escuela por lo que desde pequeños desarrollaban una comunicación interpersonal fluida. Hoy los video-juegos han sustituido la amistad y se han transformado en elementos de la comunicación. La autora analiza el mundo del nintendo y su influencia en las personas

  14. Los jóvenes se incomunican

    Directory of Open Access Journals (Sweden)

    Margarita Ferro

    2015-01-01

    Full Text Available Hace años los jóvenes se comunicaban y relacionaban con sus amigos del barrio o de la escuela por lo que desde pequeños desarrollaban una comunicación interpersonal fluida. Hoy los video-juegos han sustituido la amistad y se han transformado en elementos de la comunicación. La autora analiza el mundo del nintendo y su influencia en las personas

  15. Analise microbiologica quantitativa da agua que alimenta as canetas de alta rotacao dos ambulatorios da fo-UFRGS

    OpenAIRE

    Bianchi, Rafael; Rossi, Samuel S.; Campregher, Ulisses Bastos; Wust, Pablo R.; Barth, Adriano; Figueiredo, Jose Antonio Poli de; Barbisan, Alui Oliveira

    1998-01-01

    Uma das mais recentes preocupações no controle de infecções em Odontologia é a contaminação da água usada nos procedimentos odontológicos. O estudo proposto avaliou a qualidade da água que alimenta as canetas de alta rotação de 4 Ambulatórios da Faculdade de Odontologia da UFRGS, através de uma análise microbiológica quantitativa. Em um total de 27 amostras de água analisou-se: o número de unidades formadoras de colônias por mililitro (UFC/ml), através da contagem de bactérias heterotróficas ...

  16. Excitons, biexcitons, and phonons in ultrathin CdSe/ZnSe quantum structures

    DEFF Research Database (Denmark)

    Gindele, F.; Woggon, Ulrike; Langbein, Wolfgang Werner

    1999-01-01

    The optical properties of CdSe nanostructures grown by migration-enhanced epitaxy of CdSe on ZnSe are studied by time-, energy-, and temperature-dependent photoluminescence and excitation spectroscopy, as well as by polarization-dependent four-wave mixing and two-photon absorption experiments...

  17. Amphoteric CdSe nanocrystalline quantum dots.

    Science.gov (United States)

    Islam, Mohammad A

    2008-06-25

    The nanocrystal quantum dot (NQD) charge states strongly influence their electrical transport properties in photovoltaic and electroluminescent devices, optical gains in NQD lasers, and the stability of the dots in thin films. We report a unique electrostatic nature of CdSe NQDs, studied by electrophoretic methods. When we submerged a pair of metal electrodes, in a parallel plate capacitor configuration, into a dilute solution of CdSe NQDs in hexane, and applied a DC voltage across the pair, thin films of CdSe NQDs were deposited on both the positive and the negative electrodes. Extensive characterizations including scanning electron microscopy (SEM), atomic force microscopy (AFM), Fourier transform infrared (FTIR) and Raman studies revealed that the films on both the positive and the negative electrodes were identical in every respect, clearly indicating that: (1) a fraction (<1%) of the CdSe NQDs in free form in hexane solution are charged and, more importantly, (2) there are equal numbers of positive and negative CdSe NQDs in the hexane solution. Experiments also show that the number of deposited dots is at least an order of magnitude higher than the number of initially charged dots, indicating regeneration. We used simple thermodynamics to explain such amphoteric nature and the charging/regeneration of the CdSe NQDs.

  18. [Psychotherapy in Brazil].

    Science.gov (United States)

    Stubbe, H

    1980-01-01

    Present conditions in Brazil are characterized by sharp contrasts and rapid social changes. Modern Brazilian civilisation has its roots in Indian, Portuguese and African cultures, which have grown together in the course of many years to form a harmonious union of civilisations. The Indian and Afro-Brazilian elements of this civilisation in particular have brought about a great number of syncretistic cults, hitherto scarcely explored; such as Candomblé, Umbanda, Macumba and Spiritualism, all of which, together with a vigorously active folklore, exert an important psychohygienic function. The institutions created within these cults provide a ritualized therapeutic treatment of psychiatric conditions supplementing the professional psychiatric care available to the population. The variety of forms of the Brazilian psychotherapy stretches from the pre-scientifical methods of the Indian medicine man through the seemingly medieval forms of exorcisme and spiritualism right to the scientifically founded psychotherapy in all its lines. Integrative endeavours towards a culture-anthropological psychotherapy are becoming evident.

  19. Pediatric lymphomas in Brazil

    Directory of Open Access Journals (Sweden)

    Gabriela Gualco

    2010-01-01

    Full Text Available OBJECTIVE: This study provides the clinical pathological characteristics of 1301 cases of pediatric/adolescent lymphomas in patients from different geographic regions of Brazil. METHODS: A retrospective analyses of diagnosed pediatric lymphoma cases in a 10-year period was performed. We believe that it represents the largest series of pediatric lymphomas presented from Brazil. RESULTS: Non-Hodgkin lymphomas represented 68% of the cases, including those of precursor (36% and mature (64% cell origin. Mature cell lymphomas comprised 81% of the B-cell phenotype and 19% of the T-cell phenotype. Hodgkin lymphomas represented 32% of all cases, including 87% of the classical type and 13% of nodular lymphocyte predominant type. The geographic distribution showed 38.4% of the cases in the Southeast region, 28.7% in the Northeast, 16.1% in the South, 8.8% in the North, and 8% in the Central-west region. The distribution by age groups was 15-18 years old, 33%; 11-14 years old, 26%; 6-10 years old, 24%; and 6 years old or younger, 17%. Among mature B-cell lymphomas, most of the cases were Burkitt lymphomas (65%, followed by diffuse large B-cell lymphomas (24%. In the mature T-cell group, anaplastic large cell lymphoma, ALK-positive was the most prevalent (57%, followed by peripheral T-cell lymphoma, then not otherwise specified (25%. In the group of classic Hodgkin lymphomas, the main histological subtype was nodular sclerosis (76%. Nodular lymphocyte predominance occurred more frequently than in other series. CONCLUSION: Some of the results found in this study may reflect the heterogeneous socioeconomical status and environmental factors of the Brazilian population in different regions.

  20. The determination of Se content in Se egg by NAA in MNSR

    International Nuclear Information System (INIS)

    Wang Ke; Hou Xiaolin

    1994-01-01

    The selenium contents in the yolk, albumin and shell of the egg which was laid by layer hen fed with various Se concentrations are determined by thermal neutron activation analysis with a nuclear reaction 78 Se(n, γ) 77 Se m on the miniature neutron source reactor (MNSR). The results show that the more the selenium added to the feed, the higher the Se content in the egg and that in the egg constituents, the highest Se content is in the egg yolk and the lowest in the egg albumin

  1. Brazil-U.S. Relations

    National Research Council Canada - National Science Library

    Seelke, Clare R; Meyer, Peter J

    2009-01-01

    .... Lula was re-elected in the second round of voting with fairly broad popular support. His immediate tasks were to boost Brazil's lagging economic growth and address the issues of crime, violence, and poverty...

  2. Brazil-U.S. Relations

    National Research Council Canada - National Science Library

    Seelke, Clare R; Durand, Alessandra

    2008-01-01

    .... Lula was re-elected in the second round of voting with fairly broad popular support. His immediate tasks were to boost Brazil's lagging economic growth and address the issues of crime, violence, and poverty...

  3. Emergency medicine in Southern Brazil.

    Science.gov (United States)

    Tannebaum, R D; Arnold, J L; De Negri Filho, A; Spadoni, V S

    2001-02-01

    Emergency medicine is developing rapidly in southern Brazil, where elements of both the Franco-German and the Anglo-American models of emergency care are in place, creating a uniquely Brazilian approach to emergency care. Although emergency medical services (EMS) in Brazil have been directly influenced by the French mobile EMS (SAMU) system, with physicians dispatched by ambulances to the scenes of medical emergencies, the first American-style emergency medicine residency training program in Brazil was recently established at the Hospital de Pronto Socorro (HPS) in Porto Alegre. Emergency trauma care appears to be particularly developed in southern Brazil, where advanced trauma life support is widely taught and SAMU delivers sophisticated trauma care en route to trauma centers designated by the state.

  4. Landscapes and landforms of brazil

    CERN Document Server

    Vieira, Bianca Carvalho; Santos, Leonardo

    2015-01-01

    This book examines the greater part of geomorphological sites in Brazil. It explains how these landscapes have influenced human settlements as well as provides details on parallel geological processes, climate variations and landscape changes.

  5. Brazil's Difficult Road to Greatness

    National Research Council Canada - National Science Library

    Wolfe, David C

    2008-01-01

    Brazil is an emerging country that has made important strides in consolidating its democracy, constructing a diversified and financially sound economy, and enhancing its diplomatic participation on the world stage...

  6. ¿ Como se hace una Telenovela ?

    Directory of Open Access Journals (Sweden)

    Iván Gavaldón

    2015-01-01

    Full Text Available La autora relata la historia de las Relaciones Públicas y dice que surgieron y se desarrollaron para legitimar ante el público los intereses económicos y políticos de quienes detentan el poder. Se cuestiona sobre el por qué no aplicar las relaciones públicas, en organizaciones populares, para que mejoren su publicación y orienten sus propósitos de desarrollo. El tema que aborda las Políticas culturales en América Latina acopia un extracto de lo más trascendente de los ensayos del libro editado por Néstor García Canclini. Sobre la telenovela se afirma que esta ha llegado a ser uno de los instrumentos más importantes de la comunicación popular: por ella desfilan las identidades de las más variadas culturas brasileñas. Y en cuanto a la caricatura se relata lo que ocurrió en el Seminario taller " Caricatura y Periodismo", realizado el(9-11 de Nov.- 1987 en el CIESPAL. El estudio sobre el mercado del vídeo se ve dificultado por la imprecisión de los datos obtenidos. Los datos oficiales no siempre se aproximan a la realidad, pues el mercado de vídeo se instauró en América Latina partiendo de una lógica totalmente diversa de los equipos de sonido e imagen.

  7. The Espinharas uranium occurrence, Brazil

    International Nuclear Information System (INIS)

    Fuchs, H.D.; Fonte, J. da; Suckau, V.; Thakur, V.

    1981-01-01

    Nuclam has been exploring for uranium in Brazil since 1976. During this period one uranium ore body has been found in the vicinity of Espinharas, a village in Paraiba State, northeast Brazil. According to present knowledge, the mineralized ore body is caused by metasomatic action. The history of discovery and the exploration work until the end of 1979 is given, showing the conceptual change with increasing knowledge of the mineralized zone. (author)

  8. Consumo de alcool e risco para doenca coronariana na regiao metropolitana de Sao Paulo: uma analise do Projeto GENACIS

    Directory of Open Access Journals (Sweden)

    Maria Cristina Pereira Lima

    2013-03-01

    Full Text Available OBJETIVOS: Examinar a associação entre consumo de álcool e risco para doença coronariana em amostra populacional. MÉTODOS: Estudo transversal, de base populacional, conduzido de janeiro/2006 a junho/2007, na região metropolitana de São Paulo, como parte do estudo internacional (Gender, Alcohol, and Culture: an International Study. Os sujeitos (1.501, sendo 609 homens e 892 mulheres eram residentes da região metropolitana de São Paulo, tinham 30 anos ou mais de idade e foram selecionados aleatoriamente, a partir de amostragem complexa por conglomerados. Todos os indivíduos consentiram em participar da pesquisa. A variável dependente foi risco cardíaco avaliado através do WHO Rose Angina Questionnaire. A análise multivariada consistiu em regressão logística, tendo sido realizado ajuste para uso de tabaco e índice de massa corpórea. RESULTADOS: A taxa de resposta foi 75%. Ser mulher, ter mais idade, ser negro, fumante e ter um índice de massa corpórea elevado, foram associados a maior risco para doença coronariana. Indivíduos que nunca beberam na vida (OR = 2,22 e ex-bebedores (OR = 2,42 tiveram maior risco de doença cardíaca do que aqueles que informaram beber até 19 g de álcool por dia, sem episódios de beber excessivo. Entre os que tiveram episódios de embriaguês observou-se uma tendência a maior risco (OR = 3,95, p = 0,09. CONCLUSÕES: Nossos achados sugerem um menor risco para doença coronariana entre os bebedores moderados. Destaca-se que os estudos que avaliam o impacto do álcool sobre doença cardíaca precisam identificar o padrão de uso de álcool dos sujeitos, visto que este aspecto pode modificar o risco. Políticas públicas são necessárias para reduzir o uso nocivo de álcool e a morbidade a ele relacionada no país.

  9. PbSe Nanocrystal Excitonic Solar Cells

    KAUST Repository

    Choi, Joshua J.

    2009-11-11

    We report the design, fabrication, and characterization of colloidal PbSe nanocrystal (NC)-based photovoltaic test structures that exhibit an excitonic solar cell mechanism. Charge extraction from the NC active layer is driven by a photoinduced chemical potential energy gradient at the nanostructured heterojunction. By minimizing perturbation to PbSe NC energy levels and thereby gaining insight into the "intrinsic" photovoltaic properties and charge transfer mechanism of PbSe NC, we show a direct correlation between interfacial energy level offsets and photovoltaic device performance. Size dependent PbSe NC energy levels were determined by cyclic voltammetry and optical spectroscopy and correlated to photovoltaic measurements. Photovoltaic test structures were fabricated from PbSe NC films sandwiched between layers of ZnO nanoparticles and PEDOT:PSS as electron and hole transporting elements, respectively. The device current-voltage characteristics suggest a charge separation mechanism that Is distinct from previously reported Schottky devices and consistent with signatures of excitonic solar cells. Remarkably, despite the limitation of planar junction structure, and without film thickness optimization, the best performing device shows a 1-sun power conversion efficiency of 3.4%, ranking among the highest performing NC-based solar cells reported to date. © 2009 American Chemical Society.

  10. Se e Quando: Sinônimos?!!!

    Directory of Open Access Journals (Sweden)

    Edilaine Lins Gouveia

    Full Text Available As sentenças condicionais e temporais são idênticas, exceto pela conjunção: os eventos antecedentes cuja ocorrência é certa são introduzidos pelo quando e os de ocorrência incerta, pelo se. Em alguns contextos, essa diferença sutil de significados desaparece, sendo possível trocar uma conjunção pela outra sem alterar o significado da sentença (Dias & Vanderlei, 1999; Reilly, 1986. A presente pesquisa, realizada com estudantes universitários, teve como objetivos comparar a idéia de certeza transmitida pelas sentenças condicionais e temporais; bem como verificar se a idéia de certeza transmitida por cada tipo de sentença estudada se altera em função do tempo verbal no qual está expressa. Identificou-se que o tempo verbal é a variável que influencia mais fortemente para aproximar o significado desses dois tipos de sentença. A superposição semântica no presente decorre da alteração no significado do se que, nesse tempo verbal, transmite maior certeza do que no passado e no futuro.

  11. ANALISE ESPACIAL DA CONCENTRAÇÃO DE NITROGENIO E FÓSFORO NO TECIDO FOLIAR DO CAFEEIRO CONILON

    Directory of Open Access Journals (Sweden)

    Abel Souza da Fonseca

    2017-04-01

    Full Text Available O conhecimento da variabilidade dos fatores que afetam a produtividade é importante para o manejo da cultura, planejamento de esquemas de amostragem e gerenciamento de práticas agrícolas. O estudo foi realizado com a coleta de folhas recém-maduras para determinação dos teores de P e K. Fez-se a análise de estatística descritiva e geoestatística dos teores foliares. Definida a dependência espacial, foram confeccionados mapas temáticos por meio da krigagem ordinária. Ambos os nutrientes apresentaram dependência espacial na área, sendo que a geoestatística permitiu mapear a variabilidade espacial e identificar diferentes zonas de manejo na área. Os resultados mostram deficiência de N e P na área, sendo que essa deficiência foi menor para o P. Os mapas identificam as regiões na área que devem receber maior atenção no momento da aplicação de adubos nitrogenados e fosfatados.

  12. Season custom tariff analysis for electric power use in an agro-industry; Analise da tarifa horo-sazonal no uso da energia eletrica em uma agroindustria

    Energy Technology Data Exchange (ETDEWEB)

    Porto, L.G.C.

    1991-05-01

    An investigation about the season custom tariffs in Brazil, and the research to achieve the electric parameters involved in its utilization is shown, analyzing the change of the conventional custom tariff for the blue and green season custom tariffs. This analysis made in a agro-industry where manioc flour is produced, located in Garca, Sao Paulo State, Brazil. A comparison between the blue and green custom tariff was accomplished in order to the better advantage in the system introduction, considering the use schedule and electric parameters involved. (author). 26 refs, 31 figs, 41 tabs, 3 apps

  13. Regulation of mature oil fields: a constitutional analysis; Regulacao de campos maduros de petroleo: uma analise a luz da Constituicao Federal de 1988

    Energy Technology Data Exchange (ETDEWEB)

    Siqueira, Mariana de; Xavier, Yanko Marcius de Alencar [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil)

    2008-07-01

    The oil activities in Brazil had been started in an intensive way by the years 30 and 40. During approximately 40 years only one agent had been executed the oil activities in this country: the PETROBRAS. Many of the fields explored in the past are nowadays in decline. These fields, not interesting for the majors, would be interesting for the small and medium enterprises. The present research analyses the mature oil fields and its regulation in Brazil, looking to the 'Constituicao Federal de 1988' and to the idea of social and economic development. (author)

  14. Speciation of Se and DOC in soil solution and their relation to Se bioavailability.

    Science.gov (United States)

    Weng, Liping; Vega, Flora Alonso; Supriatin, Supriatin; Bussink, Wim; Van Riemsdijk, Willem H

    2011-01-01

    A 0.01 M CaCl(2) extraction is often used to asses the bioavailability of plant nutrients in soils. However, almost no correlation was found between selenium (Se) in the soil extraction and Se content in grass. The recently developed anion Donnan membrane technique was used to analyze chemical speciation of Se in the 0.01 M CaCl(2) extractions of grassland soils and fractionation of DOC (dissolved organic carbon). The results show that most of Se (67-86%) in the extractions (15 samples) are colloidal-sized Se. Only 13-34% of extractable Se are selenate, selenite and small organic Se (organic matter. The dominant form of small Se compounds (selenate, selenite/small organic compounds) depends on soil. A total of 47-85% of DOC is colloidal-sized and 15-53% are small organic molecules (mineralization of organic Se is the most important factor that controls Se availability in soils. Competition with sulfate and phosphate needs to be taken into account. Further research is needed to verify if concentration of small DOC is a good indicator of mineralization of soil organic matter.

  15. Se num passado remoto uma mulher...

    Directory of Open Access Journals (Sweden)

    Simone Guimarães Matheus

    2008-03-01

    Full Text Available A mulher que escreveu a Bíblia, de Moacyr Scliar,é um romance de estrutura complexa e constitui-­se de duas narrativas diferenciadas, inclusive, na apresentação gráfica. A primeira narrativa, em itálico, é conduzida por um narrador-­personagem anônimo, um fracassado professor de História que se torna, de forma pouco confiável, em um “terapeuta” de vidas passadas.

  16. Estudo da ocorrência de enteroparasitas em hortaliças comercializadas na região metropolitana de São Paulo - SP, Brasil: II - Pesquisa de protozoários intestinais Study of the occurrence of intestinal parasites os vegetables comercially traded in the metropolitan area of S.Paulo, SP - Brazil: II - Research into protozoan cysts

    Directory of Open Access Journals (Sweden)

    Carlos Augusto Fernandes de Oliveira

    1992-10-01

    Full Text Available Foram analisadas hortaliças "in natura", comercializadas na Região Metropolitana de São Paulo, SP-Brasil, visando à pesquisa e à identificação de cistos de protozoários de interesse médico. As hortaliças, constituídas de 50 amostras de cada variedade, consistiram em: alface (Lactuca sativa, variedades lisa e crespa, escarola (Chichorium sp e agrião (Nasturtium officinale. Os resultados evidenciaram elevados percentuais de contaminação em todas as variedades de hortaliças analisadas, porém as freqüências de protozoários foram maiores no agrião. As amostras de alfaces apresentaram os menores percentuais de contaminação, enquanto que a escarola apresentou valores geralmente situados entre o agrião e as alfaces. Observou-se uma grande variedade de protozoários, cujas freqüências de ocorrência na população residente na Região Metropolitana de São Paulo são igualmente elevadas. Os mais freqüentes foram Entamoeba sp (com 4 e 8 núcleos e Giardia sp. Foram também isolados cistos de Iodamoeba sp, Endolimax sp e Chilomastix sp. Os elevados níveis de contaminação fecal encontrados nas amostras analisadas apontam para a importância dos alimentos na transmissão de protozoários intestinais.Vegetables in natura , commercially traded in the metropolitan area of S.Paulo, Brazil, were analised by means of the appropriate methodology with a view to discovering and identifying protozoan cysts of medical interest. The vegetables under study consisted of 50 samples of each of the variaties listed bel ow: lettuce (Lactuca sativa - oily leaves and crisphead varieties, endive (Chicorium sp and water-cress (Nasturtium officinale. Results showed high rates of contamination in all the varieties of vegetable analysed. However, the water-cress was the one which presented the highest frequencies of enteroparasites. Both the oily leafes and crisphead varieties of lettuce presented the lowest rates of contamination, whereas endive

  17. Analise espacial dos aglomerados de nascimentos ocorridos em hospitais SUS e nao SUS do municipio de Sao Paulo, Brasil

    Directory of Open Access Journals (Sweden)

    Patricia Carla dos Santos

    2014-01-01

    Full Text Available O objetivo deste estudo é avaliar a distribuição espacial de nascidos vivos (NV do município de São Paulo (MSP, verificar se há dependência espacial, identificar possíveis diferenças no perfil dos nascimentos e avaliar as distâncias percorridas entre os domicílios e os hospitais do parto. Foram estudados os NV ocorridos em hospitais de alta complexidade, quatro SUS e quatro da rede não SUS no MSP em 2008. Foram georreferenciados 46.190 NV: 48,8% em hospitais SUS e 51,2% não SUS, estes representaram 27,9% do total de NV do MSP. Os NV de hospitais SUS formaram dois aglomerados com elevada proporção de domicílios com renda de 1/2 a 2SM, concentração de favelas e altas taxas de natalidade. Os NV de hospitais não SUS formaram um aglomerado na região central do MSP, onde há elevada proporção de domicílios com renda > 10 SM e baixa natalidade. Foram encontradas diferenças estaticamente significantes das características maternas, da gestação e do parto entre os NV de hospitais SUS e não SUS e da frequência de gemelaridade. Não houve diferença na prevalência de baixo peso e pré-termo. Os resultados mostraram existir diferenciais no perfil dos aglomerados de NV, que refletem as desigualdades das condições de vida do MSP.

  18. From primary care to hospitalization: clinical warning signs of severe dengue fever in children and adolescents during an outbreak in Rio de Janeiro, Brazil De la atención primaria a la hospitalización: señales clínicas de alarma del dengue grave en niños y adolescentes durante una epidemia en Río de Janeiro, Brasil Da atenção primária à hospitalização: sinais clínicos de alarme para dengue grave em crianças e adolescentes durante uma epidemia no Rio de Janeiro, Brasil

    Directory of Open Access Journals (Sweden)

    Gerusa Gibson

    2013-01-01

    Full Text Available We analyzed factors associated with severe cases of dengue in children and adolescents hospitalized during the 2007/2008 epidemic in Rio de Janeiro, Brazil. This is a retrospective case-control study that covers 88 cases of severe dengue in patients admitted to four tertiary care children's hospitals. Controls consisted of 22 children with non-severe dengue living in the same neighborhood as the patients with severe dengue. Differences in prevalence of the clinical signs - abdominal pain, breathing difficulty, drowsiness or irritability - emerged on the third day after the onset of symptoms, in the febrile stage. Cases and controls received first medical care at the same clinical stage of disease. However, hospital admission of severe cases occurred later, on average between the third and fourth day after the onset of the disease. Early discharge of patients with fever whose condition could have progressed to severe dengue may have been a consequence of the type of medical assistance provided by primary care units, suggesting deficiencies both in the use of the risk classification protocol and patient triage.Fueron evaluados factores asociados a la ocurrencia de casos graves de dengue en niños/adolescentes hospitalizados, durante la epidemia de 2007/2008 en Río de Janeiro, Brasil. Se trata de un estudio caso-control retrospectivo con 88 casos graves de dengue, admitidos en cuatro hospitales de atención terciaria infantil. Los controles se efectuaron con 22 niños con dengue no grave, residentes en los alrededores de los casos. Se observaron diferencias en la prevalencia de señales clínicas -dolor abdominal, dificultad respiratoria, somnolencia/irritabilidad- a partir del tercer día del inicio de los síntomas, todavía con presencia de fiebre. Casos y controles recibieron la primera atención médica en la misma fase clínica de la enfermedad. No obstante, las hospitalizaciones de los casos graves se produjeron más tardíamente, en media

  19. Translated Poetry in Brazil 1965-2004

    Directory of Open Access Journals (Sweden)

    John Milton

    2004-01-01

    Full Text Available Through a quantitative survey, this paper will examine the translation of poetry in Brazil in the last forty years, comparing poetry translated from English with poetry translated from other languages, showing the considerable growth in this area, and demonstrating that translated poetry can be considered a new genre in Brazilian literature. In order to do this, I attempted to discover translations of poetry published between 1965 and 2004, including reeditions of previously published works.Por meio de uma pesquisa quantitativa, este artigo analisa a tradução de poesia publicada no Brasil entre 1965 e 2004, enfatizando o grande interesse por parte de editoras e do público na sua publicação e demonstrando que São Paulo é a cidade onde mais se traduz poesia. Também mostra que o mercado concentra-se em obras clássicas, especialmente as de língua inglesa, e que a tradução de poesia é essencialmente uma atividade praticada por homens.

  20. Synthesis of near-infrared-emitting CdTe/CdSe/ZnSe/ZnS heterostructure.

    Science.gov (United States)

    Yang, Ping

    2014-04-01

    Near-infrared-emitting quantum dots (QDs) were fabricated via organic synthesis strategies through constructing CdTe/CdSe/ZnSe/ZnS multishell heterostructure. An effective shell-coating route was developed for multishell growth on CdTe cores. Core/shell growth was monitored by absorption and photoluminescence (PL) spectroscopy and transmission electron microscopy observation. Yellow emitting CdTe cores were coated with a CdSe shell to generate type II structure. This yields core/shell QDs with red photoluminescence. The passivation by the ZnSe shell having a substantially wide bandgap confines the excitons within the CdTe/CdSe interface and isolates them from the solution environment and consequently improves the stability of the heterostructure. An additional ZnS shell was deposited around the outer layer of CdTe/CdSe/ZnSe QDs to form a heterostructure through the reaction between zinc oleate and trioctylphosphine sulfur in the crude CdTe/CdSe/ZnSe solution. By varying CdTe core size and each shell thickness, the PL wavelength of the obtained heterostructure can span from 580 to 770 nm. The PL efficiency is quenched in CdTe QDs in diluted solution but increases substantially up to 24% for CdTe/CdSe core/shell QDs. The PL efficiency of CdTe/CdSe/ZnSe/ZnS QDs with average diameter of 5.4 nm and a PL peak wavelength of 770 nm is 20%.

  1. Y Se Repite = And It Repeats Itself

    Science.gov (United States)

    Katzew, Adriana

    2010-01-01

    In this article, the author discusses Y Se Repite [And It Repeats Itself], a project she conceptualized due to the growing number of Latino/a Mexican migrant workers in dairy farms in the state of Vermont. In 2006, approximately 2,000 Latinos/as--most of them undocumented Mexican migrant workers--worked throughout the state's dairy farms, yet…

  2. No todo lo que cuenta se cuenta

    NARCIS (Netherlands)

    van Rijckevorsel, J.

    2008-01-01

    En este trabajo publicado en "Insurance Economics" Nº 58 (Julio 2008), Jan van Rijckevorsel hace un profundo análisis del uso práctico de las estadísticas de seguros aplicadas a aspectos reales del quehacer institucional del sector, y señala varios campos (como el valor y calificación de la

  3. Geprogrammeerde onderrig: Skinner en Crowder se bydraes

    African Journals Online (AJOL)

    die beginsels van Sokrates, Comenius, Pesta- lozzi, sommige van Thorndike se wette, Kohn- ... voor 1700 toe Sokrates en Comenius van die belangrikste bydraers was. In die tydperk. 1700-1900 ..... tional Technology: Readings in Programmed Instruction,editor John P. de Cecco. London: Holt, Rinehart and Winston 1964, ...

  4. Prolingua se bydrae tot terminologieontwikkeling in Afrikaans ...

    African Journals Online (AJOL)

    Prolingua se bydrae tot terminologieontwikkeling in Afrikaans. Mariëtta Alberts. Abstract. Prolingua's Contribution to Terminology Development in Afri-kaans. The research problem addressed in this article deals with the isolated development of Afrikaans terminology in a multilingual dispensation. The research problem ...

  5. Señales en el agua

    Directory of Open Access Journals (Sweden)

    Helcías Martan Góngora

    1964-11-01

    Full Text Available La lluvia fue siempre compañera de la soledad. En su ámbito de música se mueve el pensamiento con monótono ritmo y el alma encuentra su centro de gravedad, mientras dura el imperio de su amada caricia.

  6. Synthesis and properties of new CdSe-AgI-As2Se3 chalcogenide glasses

    International Nuclear Information System (INIS)

    Kassem, M.; Le Coq, D.; Fourmentin, M.; Hindle, F.; Bokova, M.; Cuisset, A.; Masselin, P.; Bychkov, E.

    2011-01-01

    Research highlights: → Determination of the glass-forming region in the pseudo-ternary CdSe-AgI-As 2 Se 3 system. → Characterization of macroscopic properties of the new CdSe-AgI-As 2 Se 3 glasses. → Far infrared transmission of chalcogenide glasses. → Characterization of the total conductivity of CdSe-AgI-As 2 Se 3 glasses. -- Abstract: The glass-forming region in the pseudo-ternary CdSe-AgI-As 2 Se 3 system was determined. Measurements including differential scanning calorimetry (DSC), density, and X-ray diffraction were performed. The effect resulting from the addition of CdSe or AgI has been highlighted by examining three series of different base glasses. The characteristic temperatures of the glass samples, including glass transition (T g ), crystallisation (T x ), and melting (T m ) temperatures are reported and used to calculate their ΔT = T x - T g and their Hruby, H r = (T x - T g )/(T m - T x ), criteria. Evolution of the total electrical conductivity σ and the room temperature conductivity σ 298 was also studied. The terahertz transparency domain in the 50-600 cm -1 region was pointed for different chalcogenide glasses (ChGs) and the potential of the THz spectroscopy was suggested to obtain structural information on ChGs.

  7. Ethanol fuels in Brazil

    International Nuclear Information System (INIS)

    Trindade, S.C.

    1993-01-01

    The largest alternative transportation fuels program in the world today is Brazil's Proalcool Program. About 6.0 million metric tons of oil equivalent (MTOE) of ethanol, derived mainly from sugar cane, were consumed as transportation fuels in 1991 (equivalent to 127,000 barrels of crude oil per day). Total primary energy consumed by the Brazilian economy in 1991 was 184.1 million MTOE, and approximately 4.3 million vehicles -- about one third of the total vehicle fleet or about 40 percent of the total car population -- run on hydrous or open-quotes neatclose quotes ethanol at the azeotropic composition (96 percent ethanol, 4 percent water, by volume). Additional transportation fuels available in the country are diesel and gasoline, the latter of which is defined by three grades. Gasoline A (regular, leaded gas)d has virtually been replaced by gasoline C, a blend of gasoline and up to 22 percent anhydrous ethanol by volume, and gasoline B (premium gasoline) has been discontinued as a result of neat ethanol market penetration

  8. Argentina and Brazil

    International Nuclear Information System (INIS)

    Gamba-Stonehouse, V.

    1991-01-01

    This paper reports that security is defined in different ways by many international actors. To some, security is tied to the definition of an external threat to borders, as in the case of the NATO countries. To other, security is related to development, as in the case of most Third World countries. but notwithstanding different definitions, all countries recognize that the essence of security is the survival of the nation-state itself. The nuclear programs of Argentina and Brazil are among the oldest, most sophisticated and advanced nuclear programs anywhere in the Third World. The programs have never been explained on the basis of threat perception, and in this regard perhaps they constitute the most atypical form of nuclear proliferation known to date. Not surprisingly, any attempt to explain the rationale for the Brazilian and Argentine nuclear programs based on common issues of threat =merely confuses the issue. Thus, nationalism, the search for national identity and pride, the need to express self-sufficiency and the desire to keep options open in an insecure and evolving world order must all be analyzed to comprehend the likelihood of future types of nuclear proliferation. Meanwhile, the study of the contemporary era of Argentine-Brazilian nuclear rapprochement may provide new insights into the complex reasoning behind the decision of countries to go nuclear

  9. Organization life cycles: longevity and mortality of micro and small industries in Contagem - Minas Gerais, Brazil Ciclo de vida de las organizaciones: señales de longevidad y mortalidad de micro y pequeñas industrias en la región de Contagem - Minas Gerais, Brasail Ciclo de vida das organizações: sinais de longevidade e mortalidade de micro e pequenas indústrias na região de Contagem - MG

    Directory of Open Access Journals (Sweden)

    Wendel Alex Castro Silva

    2010-09-01

    Full Text Available This study identified the stage of Organizational Life Cycle of micro and small industrial enterprises in Contagem, MG focusing on business longevity according to Adizes (1990. A quantitative field research was made of 17 companies from the portfolio of a financial institution. Data was collected by a closed questionnaire with a Likert scale of five. Analysis used a nonparametric descriptive approach to determine Middle Ranking and measure agreement among characteristics. Results show that companies up to two years old are in the second stage. Those from two to five years did not have a defined stage, varying from the second to fifth stages and ones with more than five years are in the fifth stage and present positive characteristics of earlier stages. Due to study limitations, extension is suggested to the entire populationEste trabajo tuvo como objetivo identificar en cual fase del Ciclo de Vida Organizacional están algunas micro y pequeñas empresas del segmento industrial de la región de Contagem-MG, a partir del abordaje de longevidad empresarial según la tipología de Adizes (1990. Para alcanzar los objetivos del estudio, se efectuó una investigación de campo cuantitativa con una muestra de diecisiete empresas, seleccionadas por accesibilidad, en una cartera de clientes de la principal institución financiera de la región. Los datos fueron recolectados mediante cuestionario cerrado, con la escala de Likert de cinco puntos. En el análisis de resultados fue utilizado un abordaje descriptivo, sin parámetro, para establecer el Ranking Medio (RM y medir el grado de concordancia de las características evaluadas. Los principales resultados muestran que las empresas investigadas con hasta dos años de vida se encuentran en la segunda etapa, la Infancia; las empresas con edad de dos a cinco años no presentan una etapa definida, variando entre la segunda y la quinta fase, la Plenitud; las empresas con más de cinco años se encuentran en

  10. All about neosporosis in Brazil

    Directory of Open Access Journals (Sweden)

    Camila Koutsodontis Cerqueira-Cézar

    2017-08-01

    Full Text Available Abstract Neospora caninum is protozoan parasite with domestic and wild dogs, coyotes and grey wolves as the definitive hosts and many warm-blooded animals as intermediate hosts. It was cultivated and named in 1988. Neosporosis is a major disease of cattle and has no public health significance. Since 1990’s N. caninum has emerged as a major cause of abortion in cattle worldwide, including in Brazil. N. caninum also causes clinical infections in several other animal species. Considerable progress has been made in understanding the biology of N. caninum and there are more than 200 papers on this subject from Brazil. However, most of the reports on neosporosis from Brazil are serological surveys. Overall, little is known of clinical neosporosis in Brazil, particularly cattle. The few reports pertain to sporadic cases of abortion with no information on epidemics or storms of abortion. The objective of the present review is to summarize all reports from Brazil and suggest topic for further research, including prevalence of N. caninum oocysts in soil or in canine feces, and determining if there are additional definitive hosts, other than the domestic dog. There is need for a national survey in cattle using defined parameters. Future researches should focus on molecular characterization of N. caninum strains, possibility of vaccine production and relationship between wildlife and livestock epidemiology.

  11. All about neosporosis in Brazil.

    Science.gov (United States)

    Cerqueira-Cézar, Camila Koutsodontis; Calero-Bernal, Rafael; Dubey, Jitender Prakash; Gennari, Solange Maria

    2017-01-01

    Neospora caninum is protozoan parasite with domestic and wild dogs, coyotes and grey wolves as the definitive hosts and many warm-blooded animals as intermediate hosts. It was cultivated and named in 1988. Neosporosis is a major disease of cattle and has no public health significance. Since 1990's N. caninum has emerged as a major cause of abortion in cattle worldwide, including in Brazil. N. caninum also causes clinical infections in several other animal species. Considerable progress has been made in understanding the biology of N. caninum and there are more than 200 papers on this subject from Brazil. However, most of the reports on neosporosis from Brazil are serological surveys. Overall, little is known of clinical neosporosis in Brazil, particularly cattle. The few reports pertain to sporadic cases of abortion with no information on epidemics or storms of abortion. The objective of the present review is to summarize all reports from Brazil and suggest topic for further research, including prevalence of N. caninum oocysts in soil or in canine feces, and determining if there are additional definitive hosts, other than the domestic dog. There is need for a national survey in cattle using defined parameters. Future researches should focus on molecular characterization of N. caninum strains, possibility of vaccine production and relationship between wildlife and livestock epidemiology.

  12. Thermoelectric prospects of chemically deposited PbSe and SnSe thin films

    Science.gov (United States)

    Nair, P. K.; Martínez, Ana Karen; Rosa García Angelmo, Ana; Barrios Salgado, Enue; Nair, M. T. S.

    2018-03-01

    Thin films of PbSe of 400–600 nm in thickness, were obtained via chemical deposition from a solution containing lead nitrate, thiourea and selenosufate. SnSe thin films of 90–180 nm in thickness, were also obtained by chemical deposition from a solution containing selenosulfate. Optical and electrical properties of these thin films were significantly altered by heating them in selenium vapor at 300 °C. Thin film PbSe has a bandgap (Eg) of 1.17 eV (direct gap, forbidden transitions), which decreases to 0.77 eV when it has been heated. Its electrical conductivity (σ) is p-type: 0.18 Ω‑1 cm‑1 (as-prepared), and 6.4 Ω‑1 cm‑1 when heated. Thin film SnSe is of orthorhombic crystalline structure which remains stable when heated at 300 °C, but its Eg increases from 1.12 eV (indirect) in as-prepared film to 1.5 eV (direct, forbidden transitions) upon heating. Its electrical conductivity is p-type, which increases from 0.3 Ω‑1 cm‑1 (as-prepared) to 1 Ω‑1 cm‑1 when heated (without Se-vapor). When SnSe film is heated at 300 °C in the presence of Se-vapor, they transform to SnSe2, with Eg of 1.5 eV (direct, forbidden) with n-type electrical conductivity, 11 Ω‑1 cm‑1. The Seebeck coefficient for the PbSe films is: +0.55 mV K‑1 (as prepared) and +0.275 mV K‑1 (heated); for SnSe films it is: +0.3 mV K‑1 (as prepared) and +0.20 mV K‑1 (heated); and for SnSe2 film, ‑ 0.35 mV K‑1. A five-element PbSe-SnSe2-PbSe-SnSe2-PbSe thermoelectric device demonstrated 50 mV for a temperature difference ΔT = 20 °C (2.5 mV K‑1). For SnSe-SnSe2-SnSe-SnSe2-SnSe device, the value is 15 mV for ΔT = 20 °C (0.75 mV K‑1). Prospect of these thin films in thermoelectric devices of hybrid materials, in which the coatings may be applied on distinct substrate and geometries is attractive.

  13. Anisotropy in CdSe quantum rods

    Energy Technology Data Exchange (ETDEWEB)

    Li, Liang-shi [Univ. of California, Berkeley, CA (United States)

    2003-01-01

    The size-dependent optical and electronic properties of semiconductor nanocrystals have drawn much attention in the past decade, and have been very well understood for spherical ones. The advent of the synthetic methods to make rod-like CdSe nanocrystals with wurtzite structure has offered us a new opportunity to study their properties as functions of their shape. This dissertation includes three main parts: synthesis of CdSe nanorods with tightly controlled widths and lengths, their optical and dielectric properties, and their large-scale assembly, all of which are either directly or indirectly caused by the uniaxial crystallographic structure of wurtzite CdSe. The hexagonal wurtzite structure is believed to be the primary reason for the growth of CdSe nanorods. It represents itself in the kinetic stabilization of the rod-like particles over the spherical ones in the presence of phosphonic acids. By varying the composition of the surfactant mixture used for synthesis we have achieved tight control of the widths and lengths of the nanorods. The synthesis of monodisperse CdSe nanorods enables us to systematically study their size-dependent properties. For example, room temperature single particle fluorescence spectroscopy has shown that nanorods emit linearly polarized photoluminescence. Theoretical calculations have shown that it is due to the crossing between the two highest occupied electronic levels with increasing aspect ratio. We also measured the permanent electric dipole moment of the nanorods with transient electric birefringence technique. Experimental results on nanorods with different sizes show that the dipole moment is linear to the particle volume, indicating that it originates from the non-centrosymmetric hexagonal lattice. The elongation of the nanocrystals also results in the anisotropic inter-particle interaction. One of the consequences is the formation of liquid crystalline phases when the nanorods are dispersed in solvent to a high enough

  14. Islam in Brazil or the Islam of Brazil?

    Directory of Open Access Journals (Sweden)

    Vitória Peres de Oliveira

    Full Text Available This article is about the Islam lived and practiced by Muslim communities in Brazil. It attempts to understand the identity that this religion is acquiring in the Brazilian religious field. It discusses the discrepancy between figures presented by the official census and Muslim sources and offers models to think about the emergence of Muslim communities and possible changes due to the entrance of "new Muslims" (converted Brazilians without Muslim origin. Based on empirical data, it discusses the difficulties found and strategies used by the communities. It suggests that Islam in Brazil is starting to put down roots and to have a profile of its own.

  15. Que se vea lo que se oye: a vueltas con los fonemas y las letras

    Directory of Open Access Journals (Sweden)

    Gómez del Estal Villarino, Mario

    2011-03-01

    Full Text Available Partiendo de lo que el refrán “La letra con sangre entra” viene a decir a quien se deje escucharlo, se abre una descripción de las diferencias radicales que se dan entre aprender a hablar y aprender a escribir. La relación entre ambas actividades no se puede entender sin analizar la tan extendida perversión que supone hablar lo que se escribe en vez de escribir lo que se habla. A continuación, se detallan algunos de los síntomas más frecuentes de dicha perversión, caracterizados todos por la intromisión de la conciencia en terrenos donde lo único que hace es estorbar, en especial la pronunciación pedantesca de ciertos finales silábicos o de palabra, como en traNSporte, aBStraKción, óPtico, oBjeto, fúTbol, libertaD, diGno o fraK, así como las distintas deformaciones que sufren las palabras que la ortografía académica prescribe que se escriban con la letra equis.

  16. Electron density distribution and bonding in ZnSe and PbSe using ...

    Indian Academy of Sciences (India)

    Unknown

    directions are relatively low in conformity with the loosely packed structure of ZnSe. (The interaction of atomic charges will be less and hence the electron densities along directions other than bonding are expected to be minimum). Figure 8(b) of PbSe shows unequal electron densities along the three directions. This is due ...

  17. Exciton dephasing and biexciton binding in CdSe/ZnSe islands

    DEFF Research Database (Denmark)

    Wagner, Hans Peter; Tranitz, H.-P.; Preis, H

    1999-01-01

    The dephasing of excitons and the formation of biexcitons in self-organized CdSe/ZnSe islands grown by molecular-beam epitaxy is investigated using spectrally resolved four-wave mixing. A distribution of exciton-exciton scattering efficiencies and dephasing times in the range of 0.5-10 ps are obs...

  18. Biaxially Oriented CdSe Nanorod

    DEFF Research Database (Denmark)

    Breiby, Dag W.; Chin, Patrick T.K.; Andreasen, Jens Wenzel

    2009-01-01

    The shape, structure, and orientation of rubbing-aligned cadmium selenide (CdSe) nanorods on polymer coated glass substrates have been studied using transmission electron microscopy (TEM) and grazing incidence X-ray scattering combined with computer simulations. The nanorods are found to be of wu......The shape, structure, and orientation of rubbing-aligned cadmium selenide (CdSe) nanorods on polymer coated glass substrates have been studied using transmission electron microscopy (TEM) and grazing incidence X-ray scattering combined with computer simulations. The nanorods are found...... of the sample. Some tendency of smectic-A ordering is observed. A quantitative model incorporating atomic structure, rod shape, and preferred orientation was developed for numerically simulating the diffraction peak positions, widths, and intensities, giving good correlation with the experimental observations....

  19. Flood model for Brazil

    Science.gov (United States)

    Palán, Ladislav; Punčochář, Petr

    2017-04-01

    Looking on the impact of flooding from the World-wide perspective, in last 50 years flooding has caused over 460,000 fatalities and caused serious material damage. Combining economic loss from ten costliest flood events (from the same period) returns a loss (in the present value) exceeding 300bn USD. Locally, in Brazil, flood is the most damaging natural peril with alarming increase of events frequencies as 5 out of the 10 biggest flood losses ever recorded have occurred after 2009. The amount of economic and insured losses particularly caused by various flood types was the key driver of the local probabilistic flood model development. Considering the area of Brazil (being 5th biggest country in the World) and the scattered distribution of insured exposure, a domain covered by the model was limited to the entire state of Sao Paolo and 53 additional regions. The model quantifies losses on approx. 90 % of exposure (for regular property lines) of key insurers. Based on detailed exposure analysis, Impact Forecasting has developed this tool using long term local hydrological data series (Agencia Nacional de Aguas) from riverine gauge stations and digital elevation model (Instituto Brasileiro de Geografia e Estatística). To provide most accurate representation of local hydrological behaviour needed for the nature of probabilistic simulation, a hydrological data processing focused on frequency analyses of seasonal peak flows - done by fitting appropriate extreme value statistical distribution and stochastic event set generation consisting of synthetically derived flood events respecting realistic spatial and frequency patterns visible in entire period of hydrological observation. Data were tested for homogeneity, consistency and for any significant breakpoint occurrence in time series so the entire observation or only its subparts were used for further analysis. The realistic spatial patterns of stochastic events are reproduced through the innovative use of d-vine copula

  20. Abandono do tratamento de tuberculose utilizando-se as estratégias tratamento auto-administrado ou tratamento supervisionado no Programa Municipal de Carapicuíba, São Paulo, Brasil Noncompliance with tuberculosis treatment involving self administration of treatment or the directly observed therapy, short-course strategy in a tuberculosis control program in the city of Carapicuíba, Brazil

    Directory of Open Access Journals (Sweden)

    Amadeu Antonio Vieira

    2008-03-01

    Full Text Available OBJETIVO: Verificar as taxas de abandono e identificar as variáveis relacionadas ao abandono do tratamento, segundo o tipo de estratégia utilizada em pacientes matriculados no Programa de Controle da Tuberculose do município de Carapicuíba (SP Brasil. MÉTODO: Estudo longitudinal não concorrente de duas coortes de tratamento de tuberculose, a primeira de 1 de janeiro a 31 de dezembro de 2003 com a estratégia tratamento auto-administrado (173 casos e a segunda de 1 de julho de 2004 a 30 de junho de 2005 com a estratégia tratamento supervisionado (187 casos. RESULTADOS: A taxa de abandono diminuiu significativamente (p OBJECTIVE: To determine treatment noncompliance rates among patients participating in a municipal tuberculosis control program and to identify the variables related to noncompliance depending on the type of treatment strategy used. METHODS: A longitudinal non-concurrent cohort study was carried out involving two cohorts of patients participating in the Tuberculosis Control Program of the city of Carapicuíba, Brazil. The first cohort comprised 173 patients with tuberculosis treated from January 1, 2003 to December 31, 2003 using self administration of treatment, and the second comprised 187 patients with tuberculosis treated from July 1, 2004 to June 30, 2005 using the directly observed therapy, short-course strategy. RESULTS: Noncompliance rates decreased from 13.3% (self administration of treatment to 5.9% (directly observed therapy, short-course, a significant difference (p < 0.05. For the self administration of treatment strategy, the variables significantly associated with treatment noncompliance were as follows: being an unregistered worker (relative risk [RR] = 3.06; retreatment (RR = 2.73; alcoholism (RR = 3.10; and no investigation of contacts (RR = 8.94. For the directly observed therapy, short-course strategy, no variables were significantly associated with noncompliance. CONCLUSION: The directly observed therapy

  1. Sexuality education in Brazil.

    Science.gov (United States)

    Suplicy, M

    1994-01-01

    The development of a comprehensive program of sex education in Brazilian schools is described in the context of Brazil's culture and traditions such as the Carnival. The influence of Catholicism is explored as is the effect of the behavioral restrictions called for by scientists concerned about sexually transmitted diseases. The Brazilian response to homosexuality is described, and the emergence of a public discussion of sexuality in the media is traced. It is noted that improvements in the status of women have been held in check by a public ridicule of feminism and by the strength of the traditional patriarchal structures which dominate the culture. With this picture given of how the issue of sexuality fits into Brazilian life, the 1980s initiative on the part of the Work and Research Group for Sex Education is described. Opposition to this effort has largely taken the form of passive resistance; even the Catholic Church has not officially protested the sex education program. Details are provided about 1) the selection of teachers, teacher training, and weekly supervisory teacher meetings; 2) the way in which parental permission for student participation was gained; 3) the implementation of the program; 4) the successes achieved; and 5) the difficulties encountered. Finally, it is noted that plans were made to expand the sex education project from the Sao Paulo area to 6 additional large cities in 1994. Also planned is the publication of the Brazilian Guidelines for Comprehensive Sexuality which will explain the sex education methodology and be extremely valuable in the establishment of new projects.

  2. Det faderløse samfund

    DEFF Research Database (Denmark)

    Jensen, Henrik

    Det faderløse samfund er en kulturhistorisk afdækning af fader- og autoritetstabet i det 20. århundredes Europa, med fokus på fader-søn-forholdet og fortalt gennem skikkelser som Max Weber, Freud, Jung, Kafka - og ’den uregerlige søn’ over dem alle, psykologen og anarkisten Otto Gross. Den er sam...

  3. Group Analytic Psychotherapy in Brazil.

    Science.gov (United States)

    Penna, Carla; Castanho, Pablo

    2015-10-01

    Group analytic practice in Brazil began quite early. Highly influenced by the Argentinean Pichon-Rivière, it enjoyed a major development from the 1950s to the early 1980s. Beginning in the 1970s, different factors undermined its development and eventually led to its steep decline. From the mid 1980s on, the number of people looking for either group analytic psychotherapy or group analytic training decreased considerably. Group analytic psychotherapy societies struggled to survive and most of them had to close their doors in the 1990s and the following decade. Psychiatric reform and the new public health system have stimulated a new demand for groups in Brazil. Developments in the public and not-for-profit sectors, combined with theoretical and practical research in universities, present promising new perspectives for group analytic psychotherapy in Brazil nowadays.

  4. Patrimonio cultural: lo intangible se hace tangible

    Directory of Open Access Journals (Sweden)

    William Heredia Orjuela

    2004-11-01

    Full Text Available Se presentan tres reflexiones a manera de ensayo, elaboradas por estudiantes de vii semestre de la Facultad de Administración de Empresas Turísticas y Hoteleras. El tema central que engloba los escritos es el de la responsabilidad frente al patrimonio cultural, su valoración y su relación con el turismo. En el ensayo La protección del patrimonio cultural como reflejo del ser humano, la estudiante cecilia hinosTrosa hace un llamado de atención frente al problema del tráfico ilícito de bienes que conlleva la pérdida de testimonios de la cultura humana. El escrito de la estudiante mariel cecilia hernández destaca las bondades de recuperar las tradiciones y de cómo éstas se pueden difundir a través del turismo. Por último, el estudiante William heredia hace una reflexión sobre la tangibilidad de lo intangible, en el ensayo Patrimonio Cultural: lo tangible se hace intangible, donde destaca la declaratoria del Carnaval de Barranquilla como patrimonio oral e intangible de la humanidad.

  5. Forming Glasses from Se and Te

    Directory of Open Access Journals (Sweden)

    Pierre Lucas

    2009-10-01

    Full Text Available Despite being close neighbors on the Periodic Table, selenium and tellurium present a totally different abilities to form glasses. Se is a very good glass former, and gives rise to numerous glass compositions which are popular for their transparency in the infrared range and their stability against crystallization. These glasses can be shaped into sophisticated optical devices such as optical fibers, planar guides or lenses. Nevertheless, their transparencies are limited at about 12 μm (depending on the thickness of the optical systems due to the relatively small mass of the Se element. On the other hand, tellurium is heavier and its use in substitution for Se permits to shift the IR cutoff beyond 20 μm. However, the semimetallic nature of Te limits its glass formation ability and this glass family is known to be unstable and consequently has found application as phase change material in the Digital Versatile Disk (DVD technology. In this paper, after a review of selenide glasses and their applications, it will be shown how, in a recent past, it has been possible to stabilize tellurium glasses by introducing new elements like Ga or I in their compositions.

  6. Magnetic ground state of FeSe

    Science.gov (United States)

    Wang, Qisi; Shen, Yao; Pan, Bingying; Zhang, Xiaowen; Ikeuchi, K.; Iida, K.; Christianson, A. D.; Walker, H. C.; Adroja, D. T.; Abdel-Hafiez, M.; Chen, Xiaojia; Chareev, D. A.; Vasiliev, A. N.; Zhao, Jun

    2016-01-01

    Elucidating the nature of the magnetism of a high-temperature superconductor is crucial for establishing its pairing mechanism. The parent compounds of the cuprate and iron-pnictide superconductors exhibit Néel and stripe magnetic order, respectively. However, FeSe, the structurally simplest iron-based superconductor, shows nematic order (Ts=90 K), but not magnetic order in the parent phase, and its magnetic ground state is intensely debated. Here we report inelastic neutron-scattering experiments that reveal both stripe and Néel spin fluctuations over a wide energy range at 110 K. On entering the nematic phase, a substantial amount of spectral weight is transferred from the Néel to the stripe spin fluctuations. Moreover, the total fluctuating magnetic moment of FeSe is ∼60% larger than that in the iron pnictide BaFe2As2. Our results suggest that FeSe is a novel S=1 nematic quantum-disordered paramagnet interpolating between the Néel and stripe magnetic instabilities. PMID:27431986

  7. Qué se sabe de bullying

    Directory of Open Access Journals (Sweden)

    B. Ricardo Musalem, Ps.

    2015-01-01

    Full Text Available Se define bullying como una dinámica de maltrato sistemática que ocurre entre iguales de manera persistente. Es considerado un problema de salud pública debido a su prevalencia y las consecuencias que tiene en todos sus participantes: en los agresores, en las víctimas, en los espectadores, en los padres y familias, en la comunidad escolar y en la sociedad en general. Las investigaciones muestran efectos a corto, mediano y largo plazo en el desarrollo emocional y social de niños y adolescentes. Se ha constatado una relación del acoso escolar con las patologías físicas, psicosomática y de salud mental en niños, adolescentes y en la vida adulta. En este artículo se describen las características individuales, las relacionales, los factores conocidos como de riesgo y factores protectores, la prevalencia y los programas de abordaje integral del fenómeno. Son múltiples los estudios que muestran la efectividad de la aplicación de estos programas de intervención, diseñados en función de los conocimientos acumulados.

  8. Labour Market Inequality in Brazil and India: A Comparative Brazil ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Can minimum wages help to reduce labour market inequality? : experiences in India and Brazil; project paper H (c). Download PDF. Reports. Policy debate on minimum wages : report on a Panel Discussion at the Indian Society of Labour Economics, 57th Annual Conference, Srinagar; project paper H (g). Download PDF.

  9. Labour Market Inequality in Brazil and India: A Comparative Brazil ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    In Brazil, inequality has dropped by 9% between 1993 and 2008, while in India,, it increased by 16%. This reflects the different labour markets in both countries, which provide the main source of income for households. This research project brings together The Centre for Analysis and Planning in São Paulo (CEBRAP) and ...

  10. Olefin metathesis in Brazil: Brazil is romping it!

    International Nuclear Information System (INIS)

    Matos, Jose Milton E.; Batista, Nouga C.; Carvalho, Rogerio M.; Santana, Sirlane A. A.; Puzzi, Paula N.; Sanches, Mario; Lima-Neto, Benedito S.

    2007-01-01

    Some aspects of the olefin metathesis reactions are summarized here (types of reactions, mechanism and catalysts). In particular, the research groups that have been working on this chemistry in Brazil are presented. The main goal of this paper is to make this type of reaction more widely known in the Brazilian chemical community. (author)

  11. Labour Market Inequality in Brazil and India: A Comparative Brazil ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Think tanks in Brazil and India are joining forces to examine the factors behind wage inequality in their countries and propose policy options to reduce inequality in labour markets. While these two economies have succeeded in reducing poverty and gaining influence in global affairs, both still experience high inequality, ...

  12. Labour Market Inequality in Brazil and India: A Comparative Brazil ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Think tanks in Brazil and India are joining forces to examine the factors behind wage inequality in their countries and propose policy options to reduce inequality in labour markets. While these two economies have succeeded in ... Les chaînes de valeur comme leviers stratégiques. Les entreprises peuvent comprendre les ...

  13. Absorption Spectra of CuGaSe2 and CuInSe2 Semiconducting Nanoclusters

    KAUST Repository

    Mokkath, Junais Habeeb

    2015-10-01

    The structural and optical properties of the chalcopyrite CunGanSe2n and CunInnSe2n nanoclusters (n = 2, 4, 6, and 8) are investigated as a function of the size using a combination of basin-hopping global optimization and time-dependent density functional theory. Although the lowest energy structures are found to show almost random geometries, the band gaps and absorption spectra still are subject to systematic blue shifts for decreasing cluster size in the case of CunGanSe2n, indicating strong electron confinement. The applicability of the nanoclusters in photovoltaics is discussed. © 2015 American Chemical Society.

  14. Health promotion in school environment in Brazil.

    Science.gov (United States)

    Horta, Rogério Lessa; Andersen, Cristine Scattolin; Pinto, Raquel Oliveira; Horta, Bernardo Lessa; Oliveira-Campos, Maryane; Andreazzi, Marco Antonio Ratzsch de; Malta, Deborah Carvalho

    2017-03-30

    Evaluate the school environments to which ninth-year students are exposed in Brazil and in the five regions of the country according to health promotion guidelines. Cross-sectional study from 2012, with a representative sample of Brazil and its macroregions. We interviewed ninth-year schoolchildren and managers of public and private schools. We proposed a score of health promotion in the school environment (EPSAE) and estimated the distribution of school members according to this score. Crude and adjusted odds ratios (OR) were used, by ordinal regression, to determine the schoolchildren and schools with higher scores, according to the independent variables. A student is more likely to attend a school with a higher EPSAE in the South (OR = 2.80; 95%CI 2.67-2.93) if the school is private (OR = 4.52; 95%CI 4.25-4.81) and located in a state capital, as well as if the student is 15 years of age or older, has a paid job, or has parents with higher education. The inequalities among the country's regions and schools are significant, demonstrating the need for resources and actions that promote greater equity. Avaliar os ambientes escolares aos quais estão expostos estudantes do nono ano no Brasil e nas cinco regiões do país segundo diretrizes de promoção da saúde. Estudo transversal, de 2012, com amostra representativa do Brasil e suas macrorregiões. Escolares do nono ano e gestores de escolas públicas e privadas foram entrevistados. Foi proposto o Escore de Promoção de Saúde no Ambiente Escolar (EPSAE) e foi estimada a distribuição dos escolares segundo esse escore e segundo odds ratio (OR) brutas e ajustadas, por regressão ordinal, para exposição dos escolares a escolas com escores mais elevados, segundo as variáveis independentes. Um escolar tem mais probabilidade de frequentar escola com EPSAE elevado na região Sul (OR = 2,80; IC95% 2,67-2,93) se a escola for privada privada (OR = 4,52; IC95% 4,25-4,81) e estiver localizada em capital de estado e se o

  15. Emergency surgery for complicated colorectal cancer in central Brazil

    Directory of Open Access Journals (Sweden)

    Alex Caetano dos Santos

    2014-04-01

    , sepsis abdominal (3 e hemorragia digestive baixa (2. Os tumores localizavam-se no rectossigmoide (51,4%, colon transverso (19,6%, colon ascendente (12,1%, colon descendente (11,2% e 5,6% dos pacientes apresentavam tumors sincronicos. O tratamento cirurgico foi: colectomia com colostomy (85%, colectomia com anastomose primaria (10,3% e colostomia sem ressecçao do tumor (4,7%. Mortalidade immediate ocorreu em 33,4% dos pacientes. Analise bivariate de sexo, localização do tumor e estadio não foi relacionada a mortalidade (P>0,05%. Conclusões: o cancer colorretal pode ser a causa de obstrução colonica ou perfuração in pacientes com queixas inespecificas. A despeito da alta taxa de mortalidade, a ressecção do tumor pode ser realizada na maioria dos pacientes. Keywords: Colorectal neoplasms, Intestinal obstruction, Intestinal perforation, Colonic surgery, Adenocarcinoma, Palavras chave: Tumor colorretal, Obstrução intestinal, Perfuração intestinal, Cirurgia colonica, Adenocarcinoma

  16. Exergetic analysis of the operation of a petrochemical pole cogeneration system; Analise exergetica da operacao de uma planta de cogeracao de um polo petroquimico

    Energy Technology Data Exchange (ETDEWEB)

    Torres, Ednildo A. [Bahia Univ., Salvador, BA (Brazil). Escola Politecnica]. E-mail: ednildo@ufba.br; Gallo, Waldyr L. R. [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica. Dept. de Energia]. E-mail: gallo@unicamp.br

    2000-07-01

    This work presents an exergy analysis for a petrochemical cogeneration system (the greater operating in Brazil). The system is described, the method employed to simulate the system is presented, and the exergy efficiencies are defined. The analysis presents the exergy efficiencies and irreversibility for each sub-system. The results obtained from real data were used to compare operation strategies which are not clear from energy balances. (author)

  17. As discussões sobre a sustentabilidade na atividade turística: uma analise para o Brasil na ultima década

    OpenAIRE

    Nathália Roncada de Freitas; Paulo Augusto Ramalho de SOUZA; Elizandra Mariza Zambra; Raquel da Silva Pereira; Maria do Carmo Romeiro

    2014-01-01

    Debido a la importancia del turismo, como una actividad económica en Brasil, y su efecto sobre el medio ambiente, al que se inserta, se deben entender los debates sobre el tema en los últimos diez años. Este estudio tiene como objetivo general analizar los principales debates relacionados con la sostenibilidad del turismo en Brasil en la última década. Así se estructuró el diseño metodológico exploratorio descriptivo en el que se analizaron los artículos científ...

  18. Pintuco se internacionaliza en el mercado andino.

    Directory of Open Access Journals (Sweden)

    Carlos Enrique Ramírez R.

    2004-01-01

    Full Text Available La historia de la internacionalización de Pintuco está presentada en este trabajo. Es importante resaltar la valiosa información sobre el mercado mundial de pinturas lo cual despierta el interés del lector al mostrar el tamaño del mercado y la importancia económica del mismo. De igual forma, la introducción es muy expedita al señalar cuál es la tendencia de dicho mercado, pues con esto se puede hacer una idea de hacia dónde deberá ir Pintuco y cuáles serán sus principales retos a superar. Luego de dar un vistazo general de lo que son las pinturas y su impacto económico, el artículo continúa con la historia del Grupo Inversiones Mundial (GIM, ente económico que ha triunfado gracias a la tenacidad de sus directivos desde 1921. La estrategia utilizada por la empresa colombiana es explicada a través de los ejemplos de cómo empezó y se desarrolló en Venezuela y Ecuador, principalmente. Y es en esto, en lo que precisamente radica lo más importante del trabajo pues sirve como motivación y como ejemplo a seguir. Las empresas colombianas como Pintuco han entendido que una de las formas de amoldarse a las nuevas tendencias del mundo empresarial es la de competir con calidad, pero no sólo en su propio mercado, sino también en el mercado de origen de su competencia. Hoy en día las fronteras son cada vez más invisibles y eso, más que una amenaza, debería ser un atractivo.

  19. Analysis of electric power cogeneration using sugar cane bagasse; Uma analise da cogeracao de energia eletrica usando bagaco de cana-de-acucar

    Energy Technology Data Exchange (ETDEWEB)

    Carvalho, Anna Cristina Barbosa Dias de

    1997-07-01

    Brazil impels its economy again. A development expected in 80 and 90 years it is real. This growth demands new technologies, new researches and bases that bear that growth. Electric power is in these bases, but Brazil is not ready for that. Electric power cogeneration possibility appears, using sugar cane bagasse. Alcohol and sugar plants have already that practice working with a low generation volume. With some investment this volume can be increased, adding about 10% to national energetic matrix. The aim of this work is to present a short time alternative for national electric matrix. It shows the energetic situation of the country, some experiences already implanted in some countries around the world and some options for equipment improvement used in alcohol and sugar plants. It is shown alternatives sources of electric power generation studied on Brazil, as well as the planning of National Energetic Program of ELETROBRAS. It analyses, in details, sugar cane bagasse use, which is used in Sao Paulo plants to generate electric power. Possible systems and troubles for its implantation in sugar and alcohol plants are discussed. (author)

  20. Schilddrüse und Schwangerschaft

    Directory of Open Access Journals (Sweden)

    Zettinig G

    2009-01-01

    Full Text Available Kinderwunsch, Schwangerschaft und die Zeit nach einer Geburt sind besondere Lebensabschnitte bei Patientinnen mit Schilddrüsenerkrankungen. Bei jungen Frauen sind Autoimmunerkrankungen der Schilddrüse, die Einfluss auf die Fruchtbarkeit und die intellektuelle und körperliche Entwicklung des Fetus haben können, häufig. Schilddrüsenerkrankungen können sich in dieser Lebensphase auch erstmals manifestieren; besondere Beachtung verdient die Wechselwirkung von β-HCG mit dem TSH-Rezeptor. Diese Übersicht behandelt das aktuelle Management von Patientinnen mit Schilddrüsenerkrankungen bei Kinderwunsch, in der Schwangerschaft und Postpartalperiode.

  1. Thermoelectric power in n-InSe

    International Nuclear Information System (INIS)

    Casanovas, A.; Cantarero, A.; Segura, A.

    1985-01-01

    Thermoelectric power of InSe samples doped with tin has been measured as functions of the doping concentration in the range of 0.01 to 10% Sn and of the temperature in the range of 50 to 550 K. In the low temperature range the results obtained are coherent with the two-dimensional behaviour of electrons proposed by other authors. About 100 K the results can be explained successfully by introducing the same scattering mechanisms used to interpret the temperature dependence of the electron mobility

  2. Qué se sabe de bullying

    OpenAIRE

    B. Ricardo Musalem, Ps.; O. Paulina Castro, Dra.

    2015-01-01

    Se define bullying como una dinámica de maltrato sistemática que ocurre entre iguales de manera persistente. Es considerado un problema de salud pública debido a su prevalencia y las consecuencias que tiene en todos sus participantes: en los agresores, en las víctimas, en los espectadores, en los padres y familias, en la comunidad escolar y en la sociedad en general. Las investigaciones muestran efectos a corto, mediano y largo plazo en el desarrollo emocional y social de niños y adolescentes...

  3. Patrimonio cultural: lo intangible se hace tangible

    OpenAIRE

    Heredia Orjuela, William

    2004-01-01

    Se presentan tres reflexiones a manera de ensayo, elaboradas por estudiantes de vii semestre de la Facultad de Administración de Empresas Turísticas y Hoteleras. El tema central que engloba los escritos es el de la responsabilidad frente al patrimonio cultural, su valoración y su relación con el turismo. En el ensayo La protección del patrimonio cultural como reflejo del ser humano, la estudiante cecilia hinosTrosa hace un llamado de atención frente al problema del tráfico ilícito de bienes q...

  4. Diode-pumped Cr-doped ZnMnSe and ZnMgSe lasers

    Science.gov (United States)

    Říha, A.; Němec, M.; Jelínková, H.; Čech, M.; Vyhlídal, D.; Doroshenko, M. E.; Komar, V. K.; Gerasimenko, A. S.

    2017-12-01

    Chromium ions Cr2+ are known to have good fluorescence properties in the mid-infrared spectral region around the wavelength of 2.5 μm. The aim of this study was the investigation of new laser crystal materials - Zn0.95Mn0.05Se, Zn0.70Mn 0.30Se, and Zn0.75Mg0.25Se doped by Cr2+ ions and comparison of their spectral and laser characteristics. The spectroscopic parameters as absorption and fluorescence spectra as well as lifetimes were measured. As optical pumping the laser diode generating radiation at the wavelength of 1.69 μm (pulse repetition rate 10 Hz, pulse width 2 ms) was used. The longitudinal-pumped resonator was hemispherical with an output coupler radius of curvature 150 mm. The laser emission spectra were investigated and the highest intensity of emitted radiation was achieved at wavelengths 2451 nm, 2469 nm, and 2470 nm from the Cr:Zn0.95Mn0.05Se, Cr:Zn0.70Mn0.30Se, and Cr:Zn0.75Mg0.25Se laser systems, respectively. The input-output characteristics of laser systems were measured; the maximum output peak power 177 mW was obtained for Cr:Zn0.95Mn0.05Se laser system with slope efficiency of 6.3 % with respect to absorbed peak power. The output peak power as well as output beam spatial structure were stable during measurements. For the selection of the lasing wavelength, the single 1.5 mm thick quartz plate was placed at the Brewster angle inside the optical resonator between the output coupler and laser active medium. This element provided the tuning in the wavelength range 2290-2578 nm, 2353-2543 nm, and 2420-2551 nm for Cr:Zn0.95Mn0.05Se, Cr:Zn0.70Mn0.30Se, and Cr:Zn0.75Mg0.25Se, respectively. The obtained spectral FWHM linewidth of the individual output radiation was 10 nm. A comparison with previously measured Cr:ZnSe laser system was added in the end

  5. Forest policy reform in Brazil

    Science.gov (United States)

    S. Bauch; E. Sills; L.C. Rodriguez Estraviz; K. McGinley; F. Cubbage

    2009-01-01

    Rapid deforestation in the Brazilian Amazon, caused by economic, social, and policy factors, has focused global and national attention on protecting this valuable forest resource. In response, Brazil reformed its federal forest laws in 2006, creating new regulatory, development, and incentive policy instruments and institutions. Federal forestry responsibilities are...

  6. Brazil and CERN get closer

    CERN Multimedia

    2002-01-01

    The map of countries affiliated to CERN may in future include Brazil. On a visit to CERN last week, the Brazilian Minister of State for Science and Technology, Ronaldo Mota Sardenberg, expressed his country's interest in closer links to the Laboratory.   Luciano Maiani and the Brazilian Minister of State for Science and Technology Ronaldo Mota Sardenberg shake hands on CERN-Brazil co-operation. During his visit, the Minister and CERN Director General Luciano Maiani issued a joint statement for the continuation of a Co-operation Agreement first established in 1990. They also agreed to study the possibility of Brazil joining CERN-led Grid computing infrastructure projects. Brazilian physicists are already involved in the LHCb, ATLAS and CMS experiments. At the conclusion of the Minister's visit, he and Director-General Maiani agreed to establish a Working Group to examine ways of strengthening Brazil's links with CERN, and to prepare the way for a Brazilian request to CERN Council to become an Observer at th...

  7. Fighting forest fires in Brazil

    Science.gov (United States)

    José Carlos Mendes de Morais

    2013-01-01

    Fire has been used in Brazil for many years, but the increased use of this tool, combined with natural events and the presence of large forest and agricultural areas, has led to a significant jump in the number of forest fires, most of them caused by accident. To optimize existing resources and to cope with growing demand, action levels were adopted according to the...

  8. Brazil well worth the wait

    Energy Technology Data Exchange (ETDEWEB)

    Duey, R.

    1999-11-01

    Oil companies weren't the only ones waiting for Brazil to make up its mind about privatizing its oil and gas industry. Seismic firms are flocking to the area in droves to work their spec magic. Exploratory activities in these large offshore blocks are described.

  9. Brazil and International Conflict Resolution

    Directory of Open Access Journals (Sweden)

    Alla Yuryevna Borzova

    2015-12-01

    Full Text Available The article considers features of Brazilian participation in peacekeeping missions under the auspices of the United Nations related to the commitment to preventive diplomacy in resolving the conflict, the combination of diplomacy and peace-building efforts and rehabilitation of the economies of countries-participants of the conflict. Brazil put forward the initiative “Supporters of mediation”, that adds the concept of the United Nations “Responsibility to Protect” (R2P with the concept “Responsibility while protecting” (RwhileP. Brazil advocates for human rights. It marked Brazil's position on the rejection of humanitarian intervention, since the use of force leads to increased violence and instability, which manifested itself in the situation in the Middle East, and mass migration. For the country is characterized the analysis of the sources of conflict, adherence to international law, and understanding of the relationship between security and sustainable development, which is reflected in Brazil's foreign policy strategy, national security strategy.

  10. Multiexciton absorption in CdSe nanocrystals

    Science.gov (United States)

    Franceschetti, Alberto; Zhang, Yong

    2009-03-01

    Efficient multiple-exciton generation (MEG) has been recently reported in semiconductor nanocrystals. In this process, a single absorbed photon generates two or more electron-hole pairs. The MEG efficiency has so far been evaluated assuming that the change (bleaching) of the absorption spectrum due to MEG is linearly proportional to the number of excitons (NX) that are present in the nanocrystal. We have examined this assumption using atomistic pseudopotential calculations for colloidal CdSe nanocrystals ranging in size from 3 to 4.6 nm. We found that the bleaching of the first absorption peak, δα1S, depends non-linearly on NX, due to carrier-carrier interactions. When a single exciton is present in the nanocrystal, the 1S exciton peak is already 65-75% bleached. This non-linearity mandates an upper bound of 1.5 to the value of the normalized bleaching that can be attributed to MEG, significantly smaller than the limit of 2.0 predicted by the linear scaling assumption. Thus, measured values of the normalized bleaching in excess of 1.5 in CdSe nanocrystals cannot be due entirely to MEG, but must originate in part from other mechanisms.

  11. Lo que se debe a las cimentaciones

    Directory of Open Access Journals (Sweden)

    Oroviogoicoechea, Alberto

    1975-05-01

    Full Text Available This article describes: the problems that arise when the foundations has to act on soils with low consistency or when very narrow tolerances have to be met; the origin of the above mentioned problems; the requirements that are not really necessary, with suitable examples; the absolute and relative admissible magnitudes of differential settlements in concrete structures, walls, partitions and metal structures; the tolerances for mechanical installations; recommendations for projects and a table that sums up the proposed tolerances for relative foundations.En el artículo se describen: los problemas que surgen cuando la cimentación ha de actuar sobre terrenos poco consistentes o cuando se quieren cumplir tolerancias muy estrechas; de dónde provienen dichos problemas; las exigencias que no son realmente necesarias, con ejemplos apropiados; las magnitudes absolutas y relativas admisibles de asientos diferenciales, en estructuras de hormigón, muros, tabiques y estructuras metálicas; las tolerancias para instalaciones mecánicas; recomendaciones para proyecto, y una tabla que recoge las tolerancias propuestas para asientos relativos.

  12. Quality image analysis and radiation protection in dental radiodiagnosis in Sobral city, BA, Brazil; Analise da qualidade de imagem e da radioprotecao em radiodiagnostico odontologico na cidade de Sobral

    Energy Technology Data Exchange (ETDEWEB)

    Menezes, Francisca L. [Universidade Estadual Vale do Acarau (UVA), Sobral, CE (Brazil); Ferreira, Fernanda C.L. [Universidade Federal do Sul e Sudeste do Para, Maraba, PA (Brazil); Paschoal, Cinthia M.M. [Universidade da Integracao Internacional da Lusofonia Afro-Brasileira, Redencao, CE (Brazil); Belinato, Walmir [Instituto Federal da Bahia, Vitoria da Conquista, BA (Brazil)

    2015-08-15

    The radiographic processing is one of the steps to acquire radiographic images and requires appropriate quality control. The image should allow an accurate diagnosis and avoid repetition of examinations, which is consistent with the principles of radiation protection. This study aimed to verify the quality of periapical radiographic imaging and to investigate the suitability of dental X-ray equipment on the principles of radiation protection established by the Health Ministry Decree 453/98, by applying radiation field test and application questionnaires to dentists professionals. The result showed that it takes greater care professionals about the treatment radiographic and radiation protection, requiring that inspection agencies require compliance with the rules so that there is maintaining the quality of dental diagnostic radiology services. (author)

  13. Microstructural, compositional and mechanical properties of the archaeological indigenous ceramics of Caninhas, Sao Paulo,Brazil; Analise microestrutural, composicional e propriedades mecanicas das ceramicas indigenas do sitio arqueologico Caninhas, Sao Paulo, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Nakano, F.P.; Taguchi, S.P., E-mail: japaum@alunos.eel.usp.b [Universidade de Sao Paulo (DEMAR/EEL/USP), Lorena, SP (Brazil). Escola de Engenharia de Lorena. Dept. de Engenharia de Materiais; Ribeiro, R.B.; Rosa, S.J.L. [Faculdades Integradas Teresa D' Avila (FATEA), Lorena, SP (Brazil). Rede Salesianas. Dept. de Desenho Industrial; Bornal, W.G.; Queiroz, C.M. [Fundacao Cultural de Jacarehy, Jacarei, SP (Brazil). Nucleo de Arqueologia do Vale do Paraiba

    2009-07-01

    Archaeological ceramics contain infinity of data about social and cultural indigenous site Caninhas/SP. The ceramics present a gradient of color (ochre to dark gray), when from the surface to the center of the piece, indicating compositional variability caused by inefficient sintering carried out by indigenous peoples. It was analyzed the composition phases by X-rays diffraction (XRD) and mapping by EDS, identifying the illite, quartz and lutecite phases (ochre region) and illite, quartz, hydrated alumina and lutecite phases (dark gray region). The results of EDS confirmed the stages identified by X-rays diffraction and suggesting the presence of roots and scrap of ceramics sintered in the composition of indigenous ceramics, when compared by optical microscope and scanning electron microscope. Vickers hardness identified as fragile and heterogeneous are archaeological ceramics, reaching approximately 203 HV in the grains of silica and 16 HV in the ceramic matrix. (author)

  14. Analysis of risk assessment of brachytherapy from the radiotherapy services of the metropolitan region of Rio de Janeiro, RJ, Brazil; Analise da percepcao de risco da braquiterapia dos servicos de radioterapia da regiao metropolitana do Rio de Janeiro

    Energy Technology Data Exchange (ETDEWEB)

    Burgos, Adam de Freitas; Paiva, Eduardo de, E-mail: adam@bolsista.ird.gov.br, E-mail: epaiva@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ),Rio de Janeiro, RJ (Brazil); Souza, Roberto Salomon de, E-mail: salomon@inca.gov.br [Instituto Nacional de Cancer (PQRT/INCA), Rio de Janeiro, RJ (Brazil). Programa de Qualidade em Radioterapia

    2014-07-01

    Currently there are few applications on the risk analysis procedures related to radiotherapy, mainly in the practice of brachytherapy. The objective of this study was to analyze the perception of risk levels, present in the practice of high dose rate brachytherapy (HDR), using a form based on the concept of the risk matrix and a database (SEVRRA) containing information about the processes related to routine brachytherapy. A form containing information regarding the brachytherapy procedure HDR and an attachment indicating how to complete it properly was delivered to a medical physicist of each service/institution. The reference value for the risk levels found, considered acceptable for all performed analyzes, was set at a percentage limit of 33% (assuming a failure in each 3 existing processes). The results showed that the overall risk analysis showed a value for average percentage of prioritized risk of 18% below the recommended range. About the analyzed groups, the higher average percentage of relative risk was found less than 12% of the recommended range, associated with the group of patients. On existing steps, the highest average percentage of relative risk was found less than 1% of the recommended range, associated with stage records and treatment planning. This study showed that although this procedure does not have a large history of accidents, still poses risks considerable that must be managed with great accuracy and immediate action to an effective decrease these risk percentages.

  15. Multi thematic geoprocessing and structural analysis on Irati - Rio Bonito Petroleum System, Parana Basin, Brazil; Geoprocessamento multitematico e analise estrutural no Sistema Petrolifero Irati - Rio Bonito, Bacia do Parana

    Energy Technology Data Exchange (ETDEWEB)

    Freitas, Rafael Correia de [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil). Dept. de Geologia. Lab. de Analise de Bacias e Petrofisica], E-mail: rcdfreitas@click21.com.br; Rostirolla, Sidnei Pires; Ferreira, Francisco Jose Fonseca

    2005-11-15

    Structural features associated with aspects like migration routes, fluid convergence and/or barriers and seal integrity, among others, may be evaluated with the aid of information obtained by remote sensing and field data. This work is focused on the analysis of the geometry of tectonic structures and their relationship with essential elements of the Irati-Rio Bonito Petroleum System, inserted in the Parana Basin. The structural framework was outlined with satellite imagery, digital elevation models and geophysical maps. Several techniques relative to lineament analysis were reviewed and implemented by software programming. The description of structural styles, and kinematic and dynamic analysis were performed using field data obtained in key-areas. Another software was developed in order to calculate paleostress components. It computes maximum, intermediary and minor principal stress position based on Mohr-Coulomb criteria, for each fault individually. That aspect showed to be particularly important in this study due the several tectonic episodes that occurred in the Parana Basin. The relationships among features of different magnitudes and structural levels, interpreted by integrating several remote sensors, provided the understanding of the structural envelopment in the studied area. Based on the mapped structural elements, some accumulation controls were pointed out, such as the observed potential for the development of structural traps near regional structures, and the possibility of greater seals integrity associated with NE-SW oriented structural trends. Furthermore, N-S trending elements, generated in an extensional regime, could be associated with the rupture of the upper section, thus allowing leakage of hydrocarbon accumulations. (author)

  16. The market of liquid fuels in a scenario of petroleum shortages: an exploratory economic analysis to Brazil; O mercado de combustiveis liquidos em um cenario de escassez de petroleo: uma analise economica exploratoria para o Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Scaramucci, Jose A.; Bordoni, Orlando F.J.G.; Cunha, Marcelo P. [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Nucleo Interdisciplinar de Planejamento Energetico (NIPE)

    2004-07-01

    The objective of this paper is to discuss the possible impacts on the Brazilian economy of an oil shortage crisis and its effects on the domestic market for liquid fuels. The results were obtained from simulations using a multi-sector general equilibrium model. The scenarios used in the numerical experiments were characterized by different constraining levels in imports of crude oil and oil products and also by the ability gasoline may be substituted by fuel ethanol. It is shown that the economic effects depend to a large degree on the substitution flexibility between liquid fuels. Thus it is expected that the introduction of flex-fuel vehicles in the light-duty fleet will make the Brazilian economy much less vulnerable in the event of an external oil-supply shock. (author)

  17. Neutron activation analysis of soil samples collected at different points of the metropolitan region of Sao Paulo, Brazil; Analise por ativacao com neutrons de amostras de solo coletadas em diferentes pontos da regiao metropolitana de Sao Paulo, SP

    Energy Technology Data Exchange (ETDEWEB)

    Bunevich, Rodrigo Brandao [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Geociencias]. E-mail: rbunevich@gmail.com; Saiki, Mitiko [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)]. E-mail: mitiko@ipen.br

    2007-07-01

    This article analyses samples from the soil of Sao Paulo metropolitan region (SPMR) aiming posterior study on the influence of his elementary composition in the elements accumulated by the lichen. The article analyses soils samples from various points at SPMR) and at the clean region of Parque Intervales, Mata Atlantica, SP by using the neutron activation analysis. The concentration of the elements As, Br, Co, Fe, Hf, K, Nd, Rb, Sb, Th, U, Zn and rare earths were determined, and comparative studies were also performed between the concentrations obtained for the samples collected at different sampling points. The samples collected at IPEN and Congonhas presented high La and Nd concentrations when compared with the other ones. The high Ce, Th and U concentrations were obtained for the IPEN soil samples. Besides, the As and Br presented the highest values at the Santo Andre, Capuava and Cerqueira Cesar. The clean region samples of Parque Intervales presented lower concentrations related to most of collected points at the SPMR, excepted the elements Sc and Rb. The quality control were evaluated by analysing the reference certificated materials Soil 7 and Buffalo River Sediment. (author)

  18. Environmental licensing for the implementation of small hydroelectric power plants: analysis and optimization proposals for Minas Gerais state, Brazil; Licenciamento ambiental para implantacao de pequenas centrais hidreletricas: analise e propostas de otimizacao para Minas Gerais

    Energy Technology Data Exchange (ETDEWEB)

    Pedreira, Adriana Coli [Universidade Federal de Itajuba (UNIFEI), MG (Brazil). Programa de Pos-graduacao em Engenharia da Energia], e-mail: adriana@unifei.edu.br; Dupas, Francisco Antonio [Universidade Federal de Itajuba (UNIFEI), MG (Brazil). Inst. de Recursos Naturais], e-mail: dupas@unifei.edu.brT

    2004-07-01

    This document presents the legal and institutional aspects of the environmental licensing for the implementation of small hydroelectric power plants (SHPP). Laws and doctrine related to the topic were researched and concluded for Minas Gerais State with the help of a survey with the enterprises and institutions involved in the process to find out the difficulties that influence the delay of the analysis of the SHPP. It also highlights the importance of environmental zoning as a tool of environmental management for the procedure to obtain these licenses. The results show that 80% of the cases, the institutions do not respect the deadlines, 40% of the studies presented by the enterprises are insufficient, 60% there is lack of human resource and technical capacities of the environment institutions, and 80% non-fulfilment of the laws and non-integration of the institutions. Finally, the study concludes that the difficulties to obtain these licenses are based on the facts mentioned which are, the non-integration of the institutions and also, being recent, on the inexperience of the actors involved. Therefore, it is suggested that deadlines should be imposed for the institutions and the enterprises. There should be training, fund raising for the hiring of technicians, fulfillment of the law and above all, transparency in order to supply the electrical energy demand and guarantee the sustainable development. (author)

  19. Comparison among chemical, mineralogical and physical analysis from alluvial clays from counties of Southwest of Minas Gerais state (Brazil); Comparacao entre as analises quimicas, mineralogicas e tecnologicas das argilas aluvionares de alguns municipios do sudoeste de Minas Gerais

    Energy Technology Data Exchange (ETDEWEB)

    Gaspar Junior, L.A., E-mail: lineo.gaspar@unifal-mg.edu.br [Universidade Federal de Alfenas (UNIALFENAS), MG (Brazil). Instituto de Ciencias da Natureza; Varajao, A.F.D.C. [Universidade Federal de Ouro Preto (UFOP), MG (Brazil). Escola de Minas; Souza, M.H.O. [Universidade Federal de Uberlandia (UFU), MG (Brazil). Departamento de Geografia; Moreno, M.M.T. [Universidade Estadual Paulista Julio de Mesquita Filho (UNESP), Rio Claro, SP (Brazil). Departamento de Petrologia e Metalogenia

    2011-07-01

    The studied area is located in the southwestern portion of Minas Gerais State, encompassing the counties of Alfenas, Areado, Machado, Poco Fundo, Campestre, Serrania, Monte Belo, Bandeira do Sul, Botelhos and Cabo Verde. This region is dominated by strongly weathered pre-cambrian rocks in association with colluvial-alluvial sediments. The present work consisted in a comparison among the mineralogical (X-Ray Diffraction), textural (Laser Granulometry), chemical (X-Ray Fluorescence) and technological (mechanical resistance, water absorption, etc, made in specimen tests) properties of the clays collected on potteries located in these counties. The mineralogical and chemical analysis displayed the kaolinitic nature of the clays from this region, showing also small amount of interlayered clays and large amount of quartz. The best results of physical analysis were obtained for clays from the counties of Cabo Verde and Monte Belo due to the presence of lower values of SiO{sub 2} (quartz) associated with a finer particle size distribution. (author)

  20. Tectonic-stratigraphic evolution of mini-basins and salt provinces of Espirito Santo Basin-Brazil; Analise da evolucao tectono sedimentar de mini-bacias e provincias de sal da Bacia do Espirito Santo

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira Neto, Walter Dias; Fernandes, Flavio Luis [Petroleum Geoscience Technology Ltda. (PGT), Rio de Janeiro, RJ (Brazil); Mohriak, Webster [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    The Espirito Santo Basin integrates the group of basins along the eastern Brazilian continental margin. It is located between 18 deg and 21 deg S, encompassing an area of approximately 220,000 km{sup 2}, onshore and offshore the Espirito Santo State. Its geological limit with the Campos Basin to the south is defined by a Precambrian basement high (Vitoria Arch), and its northern limit with the Mucuri Basin is defined by a geopolitical limit. The study of salt tectonics processes in the Espirito Santo Basin allowed the deformational analysis and interpretation of the chronological evolution of the mini-basins developed between salt diapirs. We observe an intrinsic relationship between halokinesis and creation of subsidence troughs that may be important for trapping hydrocarbon reservoirs, and consequently form oil and gas accumulations in this portion of the basin. This geodynamics evolution of these structures is marked by a strong linkage between salt movement and coeval sedimentation in the interdomal basins, forming structures and stratigraphic traps that may constitute important aspects for the petroleum geology. (author)

  1. Analysis of the influence of the Colatina Belt in the Campos and Espirito Santo Basins-Brazil; Analise da influencia da Faixa Colatina nas Bacias de Campos e Espirito Santo

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Gustavo Henrique Teixeira da; Simoes, Luiz Sergio Amarante; Souza, Iata Anderson de [Universidade Estadual Paulista (UNESP), Rio Claro, SP (Brazil). Inst. de Geociencias e Ciencias Exatas

    2008-07-01

    Recent discoveries in the Espirito Santo Basin confirm the importance of it in the national exploratory scenery (oil and gas production). The new fields like Carapo and Camarupim, beyond others, next to already known Golfinho and Canapu, totalize an addition of 560 million barrels. In this way, studies in the area add importance, as the case of the present research, where if it looked to analyze the influence of Colatina Belt in Espirito Santo Basin and secondarily in Campos Basin. The results had been gotten through the integration of diverse data, such as lineaments extracted from images SRTM, potential maps and analyze of seismic lines. It was concluded that the Colatina Belt if projects for the interior of the basins, but that the same one seems to be dislocated in relation to the direct projection of the continental features, being that its influence can be felt with bigger emphasis in the Campos Basin, while in the Espirito Santo it look like to have low importance with regard to the exploration aspects. Also it was verified the presence of numerous halo kinetic structures that affect all the mapped horizons, this element determine great importance in the generation of structural traps. (author)

  2. Analysis of risk perception of teletherapy in radiotherapy services of Rio de Janeiro city, RJ, Brazil; Analise da percepcao de risco da teleterapia dos servicos de radioterapia da regiao metropolitana do Rio de Janeiro

    Energy Technology Data Exchange (ETDEWEB)

    Burgos, Adam F.; Paiva, Eduardo de [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Souza, Roberto S. de, E-mail: adam@bolsista.ird.gov.br [Instituto Nacional de Cancer (INCA), Rio de Janeiro, RJ (Brazil). Programa de Qualidade em Radioterapia

    2015-12-15

    Currently there are few applications on the risk analysis procedures related to radiation therapy, especially in the practice of radiotherapy. The objective of this study was to analyze the perception of risk levels present in the practice of teletherapy (only the use of linear accelerators), through a form based on the risk matrix concept and a database (SEVRRA) containing information about the processes related to routine teletherapy. Was delivered to a medical physicist for each service, a form containing information relating to teletherapy procedure and an annex indicating how to fill it properly. The results show that, according to the opinion of 16 medical physicists participants, six of these analyzes showed a prioritized risk percentage above 50%, other five had a risk of prioritized percentage between 0 and 50%, and the remainder had a risk percentage prioritized null. Two steps groups had the highest incidence of cases classified with high and very high risk: records and treatment planning group and equipment group. It was then possible to find the most risk processes these steps groups. Finally, we performed an analysis of the effectiveness of the controls present in the proposed form. The four most incidents controls, three of them had a percentage efficiency above 80%, and viable its continuous use in the analyzed services, as well as serving as a recommendation for use in other services not analyzed. This study showed that, although there are considerable histories of accidents for teletherapy procedure, you can not only identify the risks of higher expression but also mitigate them, based on actions and appropriate recommendations for each case analyzed properly. (author)

  3. Structural, petrological and geochronological analysis of the lithotypes from the Pien region (Parana State, Brazil) and adjacences; Analise estrutural, petrologica e geocronologica dos litotipos da Regiao de Pien (PR) e adjacencias

    Energy Technology Data Exchange (ETDEWEB)

    Harara, Ossama Mohamed

    1996-12-31

    The Pien area presents the major geotectonic domains separated by the Pien Shear Zone (PSZ). The northern one is the Rio Pien Granite-Mylonitic Suite composed by calc-alkaline granitoids of Neoproterozoic age. The southern domain is represented by the Amphibolite-Granulite where high grade metamorphism took place at the end of paleoproterozoic time. Considering the identified lithotypes, their geochemical affinity (particularly the Ti, Cr, Ni and REE content) and the geological context observed in the area, a geotectonical model of active continental margin related to subduction SSZ (Supra-Subduction Zone) is proposed. K-Ar on plagioclase from gabbronorites gave Neoproterozoic ages although Sm-Nd whole rock isochron yielded Paleoproterozoic ages. Based in geochemical data, it is proposed that the biotite gneiss and biotite-amphibole-gneiss which occur near the PSZ have a shoshonitic to high-K calc-alkaline features which are characteristic of active continental margins. K-Ar on biotite extracted from these rocks, gave Neoproterozoic ages. The available radiometric data for the Rio Pien mylonitic granitoids show that between 650-595 Ma the generation, deformation and cooling below the isotherm of 250 deg C occurred. On the other hand, the geochronological data for the Agudos do Sul Massif are in the 590-570 Ma interval showing its younger generation. The Sr{sup 87} / Sr{sup 86} initial ratios for both granitoids suggest more involvement of the continental crust in the origins of Agudos do Sul granitic Massif. The analyses of the entire set of the available data for the Pien area allows the suggestion of a geotectonic scenery related to the evolution of an active continental margin during the collages associated to the Brasiliano Cycle 201 refs., 130 figs., 6 tabs., 2 maps

  4. Escuela para señoritas, Inglaterra

    Directory of Open Access Journals (Sweden)

    Stillman y Eastwlck-Field, Arquitectos

    1963-02-01

    Full Text Available The object was to design part of a new building which had been seriously damaged during the war, so that the old and new parts would blend into a pleasant whole, with a capacity for 600 girls. The new designs avoid the glass box style of school buildings, and glass walls have been adopted only on the ground floor, thus giving an impression of light and airiness to what used to be a partial basement. Classrooms have been designed in a simple manner, and give the impression of conventional rooms. Simple lines and materials have been chosen throughout. Strong contrasts in the external finish have been avoided, and colours provide a relaxing background to the intensive activities of the students. A constructional feature is the use of prefabricated concrete joists and supports. Outer walls consist of brick panels filling in the space between the visible concrete framework. Ceilings are of insulating boards, and the floors are covered with linoleum. Special attention has been devoted to the hall. In this case the roof is of white gypsum, and the only features are the grills covering the fluorescent lighting. The walls of this hall are of glass, and are covered with heavy velvet curtains. A balcony with hardwood posts adds a simple and friendly feature to the building. The furniture and drapery have been carefully chosen. Camden school has a rigid tradition of individualism and fine education, and the new building has succeeded in maintaining the exclusive quality of the older parts, as well as offering an overall impression of up to date construction.El problema consistía en proyectar un nuevo núcleo para un edificio que había sido seriamente bombardeado durante la guerra, de tal modo que las partes antiguas y nuevas formasen un conjunto agradable y con capacidad para más de 600 chicas. En la nueva construcción se ha evitado el carácter de «cajas de cristal» de las nuevas escuelas ordinarias y se han empleado muros de cristal solamente en la

  5. Stable and metastable phases in reciprocal systems PbSe + Ag2I2 Ag2Se + PbI2 and PbSe + CdI2 = CdSe + PbI2

    International Nuclear Information System (INIS)

    Odin, I.N.; Grin'ko, V.V.; Kozlovskij, V.F.; Safronov, E.V.

    2005-01-01

    Mutual system PbSe + Ag 2 I 2 = Ag 2 Se + PbI 2 is investigated. It is shown that diagonal Ag 2 Se-PbI 2 is stable. Liquidus surface and isothermal section at 633 K of phase diagram of PbSe-Ag 2 Se-PbI 2 system are built. Transformations directing to crystallization metastable ternary compound forming in PbSe-PbI 2 system and metastable polytype modifications of lead iodide in PbSe-Ag 2 Se-PbI 2 system at 620-685 K are studied. By hardening from molten state (1150-1220 K) new interstitial metastable phases crystallizing in CdCl 2 structural type are obtained in PbSe-Ag 2 Se-PbI 2 and PbSe + CdI 2 = CdSe + PbI 2 systems [ru

  6. Highly luminescent CdSe/ZnSe core-shell quantum dots of one-pot preparation in octadecene

    NARCIS (Netherlands)

    Zeng, Q.; Kong, X.; Zhang, Y.; Zhang, H.

    2008-01-01

    CdSe/ZnSe core-shell quantum dots were synthesized using a new one-pot procedure where the core was prepared in octadecene. A ZnSe shell around a CdSe nanoparticle was formed by the reaction of selenium-richness on the surfaces of CdSe nanoparticles with Zn2+ from the injected zinc stearate

  7. Telemedicine: challenges to dissemination in Brazil.

    Science.gov (United States)

    Maldonado, Jose Manuel Santos de Varge; Marques, Alexandre Barbosa; Cruz, Antonio

    2016-11-03

    Telemedicine has been seen as an important tool for facing the challenges of universal health systems. The goal of this article is to discuss the main challenges to its full dissemination in Brazil. Being a somewhat new area, there are not many scientific papers that systematize it. This article is an exploratory paper, as it aims to provide an overall perspective on the subject. From an economic point of view, telemedicine is a strategic area due to its an intrinsic potential of being a source for generating innovation, for requiring and incorporating technological breakthroughs from other areas, and for its interdisciplinary nature and dynamic inter-relations that drive different industries. From the social perspective, it has the potential to make access to health services democratic, by connecting remote regions with health services located in hospitals and centers of reference for prevention, diagnosis and treatment. Resumo: A telemedicina está sendo vista como uma ferramenta importante para enfrentar os desafios dos sistemas de saúde universais. O objetivo deste artigo foi discutir os principais desafios para a sua plena disseminação no Brasil. Em função do caráter relativamente emergente desta área, existe uma escassez relativa de trabalhos científicos que a sistematizem. Por isso, este artigo se enquadra na categoria de trabalho exploratório, já que tem por objetivo proporcionar uma visão geral sobre o tema. Destaca-se, que do ponto de vista econômico, a telemedicina se constitui em uma área estratégica por seu potencial intrínseco de ser fonte geradora de inovações, por demandar e incorporar avanços tecnológicos oriundos de outras áreas e, em função da sua natureza interdisciplinar e de suas inter-relações dinâmicas, pela possibilidade de impulsionar diferentes indústrias. Do ponto de vista social, tem o potencial de democratizar o acesso aos serviços de saúde, integrando regiões remotas com serviços de saúde localizados em

  8. Comparação da percepção de fadiga e de capacidade para o trabalho entre trabalhadores têxteis de empresas que se encontram em diferentes estágios de responsabilidade social empresarial no estado de São Paulo, Brasil Comparison of fatigue and workability among textile workers of companies in different stages of corporate social responsibility in the state of São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Ricardo Jorge Metzner

    2008-12-01

    Full Text Available OBJETIVOS: Comparar as características demográficas e as percepções da capacidade para o trabalho, fadiga e condições de trabalho entre trabalhadores de indústrias têxteis que estejam em diferentes estágios de responsabilidade social empresarial (RSE. MÉTODOS: Em estudo transversal, 126 trabalhadores de três empresas e cinco fábricas responderam a questionário de caracterização demográfica, condições e estilos de vida, a autoavaliações sobre fadiga, condições de trabalho e capacidade para o trabalho. As empresas foram classificadas em dois grupos de pontuação de indicadores de RSE (o grupo um de menor pontuação e o grupo dois de maior pontuação, com base nas respostas dadas em questionário específico. RESULTADOS: Não foram encontradas diferenças (p > 0,05 nos resultados de capacidade para o trabalho, fadiga e na maior parte dos dados demográficos obtidos entre os trabalhadores dos dois grupos. As melhores condições de trabalho, no grupo de maior pontuação (p = 0,008, deveram-se principalmente ao fornecimento de refeições nas fábricas. CONCLUSÕES: O desenvolvimento e a implementação de projetos de RSE não implicam, necessariamente, em melhores condições de trabalho ou em percepções dos trabalhadores de menor fadiga ou maior capacidade para o trabalho, em relação a empresas que não dispõem desses projetos. Por tratar-se de estudo transversal com população reduzida e como a capacidade para o trabalho pode diminuir com o envelhecimento do trabalhador novos estudos, preferencialmente longitudinais, deverão ser realizados, com populações maiores.OBJECTIVES: To compare demographic data and perception of workability, fatigue and working conditions among groups of workers of textile industries in different stages of Corporate Social Responsibility (CSR. RATIONAL: Cross-sectional study with 126 workers of 5 textile plants and 3 companies, they were asked to fill out a questionnaire to evaluate

  9. Emocionar-se no MCT-PUCRS

    Directory of Open Access Journals (Sweden)

    Alice Petry Da Silva

    2017-07-01

    Full Text Available O presente artigo consiste em apresentar uma narrativa de uma saída de campo pelos bolsistas da pesquisa intitulada “Na ponta dos dedos: o iPad como instrumento complexo de cognição/subjetivação”, ao MCT-PUCRS (Museu de Ciências e Tecnologias das PUCRS, com 4 crianças diagnosticadas com Transtorno do Espectro Autista (TEA. Através do projeto utilizamos o iPad para o acoplamento dos sujeitos com a realidade. Neste passeio especificamente, nossas percepções se deram em relação às emoções que os sujeitos demonstraram frente as suas descobertas durante a visitação as dependências do museu. Nesta escrita abordaremos as emoções disparadas durante a vivência destas crianças em um ambiente novo e desafiador para elas.

  10. Ducasse y Onetti se encuentran en Rocambole

    Directory of Open Access Journals (Sweden)

    Alma Bolon

    2017-12-01

    Full Text Available Muy notoria en abundantes lugares, la presencia de la literatura francesa en la obra de Juan Carlos Onetti incluye pocas referencias explícitas a los Cantos de Maldoror. Para rastrear las huellas de Isidore Ducasse en la obra de Juan Carlos Onetti, conviene pegar un rodeo, que conducirá hasta Rocambole, Silvio Astier y Fantomas. De este modo, es posible percibir un aire de familia que se expande y alcanza a Lautréamont, Onetti, Arlt, Ponson du Terrail y Pierre Souvestre & Marcel Allain, envolviendo no solo temas y personajes sino también y fundamentalmente una particular relaciόn entre el saber y el contar.

  11. CuInSe2 nano-crystallite reaction kinetics using solid state reaction from Cu2Se and In2Se3 powders

    International Nuclear Information System (INIS)

    Hsiang, Hsing-I; Lu, Li-Hsin; Chang, Yu-Lun; Ray, Dahtong; Yen, Fu-Su

    2011-01-01

    Highlights: → CuInSe 2 phase increased gradually accompanied with a decrease in γ-In 2 Se 3 and no intermediate phase during calcination. → CuInSe 2 formation from Cu 2 Se and In 2 Se 3 powders follows a one-dimensional diffusion-controlled reaction with apparent activation energy of about 122.5 kJ/mol. → The solid reaction kinetics may be dominated by the diffusion of In 3+ ions. - Abstract: The reaction mechanism and CuInSe 2 formation kinetics using a solid state reaction from Cu 2 Se and In 2 Se 3 powders synthesized using a heating up process were investigated using X-ray diffractomy (XRD) and transmission electron microscopy (TEM). It was observed that the CuInSe 2 phase increased gradually, accompanied with a decrease in γ-In 2 Se 3 with no intermediate phase as the calcination temperature and soaking time were increased. The reaction kinetics was analyzed using the Avrami and polynomial kinetic model, suggesting that CuInSe 2 formation from Cu 2 Se and In 2 Se 3 powders follows a diffusion-controlled reaction with an apparent activation energy of about 122.5-182.3 kJ/mol. Cu 2 Se and In 2 Se 3 phases react and directly transform into CIS without the occurrence of any intermediate phase and the size of the newly formed CuInSe 2 crystallites was close to that of the Cu 2 Se reactant particle based on the TEM results, which indicated that the solid reaction kinetics may be dominated by the diffusion of In 3+ ions.

  12. Behavior analysis in Brazil

    Directory of Open Access Journals (Sweden)

    Joao Cláudio Todorov

    2010-07-01

    Full Text Available La historia del análisis del comportamiento en Brasil comenzó con la visita de Fred S. Keller a la Universidad de São Paulo en 1961, cuando él era un académico de la Fundación Fullbright; en aquella época, Keller presentó los trabajos de Skinner a los psicólogos brasileños. Su primer asistente fue Carolina Martuscelli Bori, en aquel entonces una psicóloga social influenciada por el trabajo de Kurt Lewin. Orientada inicialmente por Keller, Carolina Bori fue la principal fuerza de difusión del análisis del comportamiento en Brasil, comenzando con el curso de psicología en la Universidad de Brasilia, en el cual, durante agosto de 1964, se dictó el primer curso de Análisis Experimental de la Conducta. La mayoría de los analistas del comportamiento de hoy en día fueron directa o indirectamente estudiantes de Carolina Bori. Actualmente varios programas de psicología en el país ofrecen cursos de análisis del comportamiento

  13. Frustrated magnetism in the tetragonal CoSe analog of superconducting FeSe

    Science.gov (United States)

    Wilfong, Brandon; Zhou, Xiuquan; Vivanco, Hector; Campbell, Daniel J.; Wang, Kefeng; Graf, Dave; Paglione, Johnpierre; Rodriguez, Efrain

    2018-03-01

    Recently synthesized metastable tetragonal CoSe, isostructural to the FeSe superconductor, offers a new avenue for investigating systems in close proximity to the iron-based superconductors. We present magnetic and transport property measurements on powders and single crystals of CoSe. High field magnetic susceptibility measurements indicate a suppression of the previously reported 10 K ferromagnetic transition with the magnetic susceptibility, exhibiting time dependence below the proposed transition. Dynamic scaling analysis of the time dependence yields a critical relaxation time of τ*=0.064 ±0.008 s which in turn yields activation energy Ea*=14.84 ±0.59 K and an ideal glass temperature T0*=8.91 ±0.09 K from Vogel-Fulcher analysis. No transition is observed in resistivity and specific heat measurements, but both measurements indicate that CoSe is metallic. These results are interpreted on the basis of CoSe exhibiting frustrated magnetic ordering arising from competing magnetic interactions. Arrott analysis of single crystal magnetic susceptibility has indicated the transition temperature occurs in close proximity to previous reports and that the magnetic moment lies solely in the a b plane. The results have implications for understanding the relationship between magnetism and transport properties in the iron chalcogenide superconductors.

  14. La connaissance du climat au Brésil : entre le vernaculaire et le scientifique O conhecimento do clima no Brasil : Entre o vernacular e o científico The knowledge of the climate in Brazil: Between the vernacular and scientific

    Directory of Open Access Journals (Sweden)

    Francisco Mendonça

    2012-06-01

    climatologia brasileira apresentou avanços e originalidade, sendo a analise rítmica dos tipos de tempo e o estudo do clima urbano seus principais destaques. A questão ambiental, o emprego das imagens de satélites e os debates concernentes às mudanças globais são os principais enfoques da climatologia brasileira no presente momento. Alguns estudos relativos à percepção do clima pela população tem reconhecido a importância do saber vernacular sobre os climas do país, inaugurando uma nova oportunidade para esta ciência, mais aberta, mais plural e mais rica que a abordagem estrita da ciência moderna.The knowledge of climate in Brazil is the overlap between the vernacular knowledge and the scientific knowledge, although in the context of the academy the scientific and technical approach is predominant. For the greatest part of the population the vernacular knowledge (or traditional on climate is more important than science. However, in the context of science, the development and consolidation of the brazilian climatology occurred only around the last 70 years. The diffusion of the principle of the dynamic meteorology was one of the main aspects to the development of the study of the brazilian climates. During that period the Brazilian climatology shows advancements and originality, rhythmical analysis of weather and the urban climate studies are the most importants propositions. The environmental question, the satellite images and the debate concerning global changes are the main subjects of interest of the Brazilian climatology in the present time. Some studies related to the perception of climate have recognized the importance of vernacular knowledge about climate in Brazil, inaugurating a new opportunity for science, an approach more open, plural, and richer than strictly modern science.

  15. ANALISIS METODOLÓGICO PARA LA MODELACIÓN DE LA SEGURIDAD ALIMENTARIA A NIVEL NACIONAL ANALISE METODOLÓGICO PARA A MODELAÇÃO DE A SEGURIDADE ALIMENTAR A NÍVEL NACIONAL METHODOLOGICAL ANALYSIS TO MODELING FOOD SECURITY FROM A NATIONAL PERSPECTIVE

    Directory of Open Access Journals (Sweden)

    DIANA P GIRALDO

    2010-06-01

    Full Text Available La comunidad científica y política ha incrementado el interés por entender e intervenir el problema de seguridad alimentaria, especialmente desde la crisis alimentaria en la década de los 70's. Diferentes estrategias metodológicas han sido utilizadas con el ánimo de proyectar, predecir y evaluar políticas como soporte para la toma de decisiones en el sector público. Este artículo explora un conjunto de metodologías usadas para el estudio de la seguridad alimentaria a nivel nacional, herramientas estratégicas para una apropiada formulación, evaluación y aplicación de políticas. Se discute el potencial uso de metodologías complementarias al análisis tradicional, especialmente la Dinámica de Sistemas, como una herramienta de simulación que permite el análisis de relaciones causales, el establecimiento de variables críticas y la evaluación de escenarios a favor de una efectiva toma de decisionesA comunidade científica e política hão acrescentado o interesse por entender e intervir o problema de seguridade alimentar, especialmente, desde a crise alimentar na década dos 70's. Diferentes estratégias metodológicas hão sido utilizadas com o interesse de projetar, predizer e avaliar políticas como suportes para a toma de decisões no setor público. Este artigo explora um conjunto de metodologias empregadas no estudo da seguridade alimentar a nível nacional, ferramentas estratégicas para uma apropriada formulação, avaliação e aplicação de políticas. Discutese o potencial uso de metodologias complementárias à análise tradicional, especialmente a Dinâmica de Sistemas, como ferramentas de simulação que permite a analise de relações causais, o estabelecimento de variáveis críticas e a avaliação de cenários a favor de uma toma de decisõesThe scientific and politic community has had increasing concerns for strategic understanding and intervention of the food security problem, especially since the 70's food

  16. Temperature-dependent exciton recombination in asymmetrical ZnCdSe/ZnSe double quantum wells

    CERN Document Server

    Yu Guang You; Zhang, J Y; Zheng, Z H; Yang, B J; Zhao Xiao Wei; Shen De Zhen; Kong Xiang Gui

    1999-01-01

    Temperature-dependent exciton recombination in asymmetrical ZnCdSe/ZnSe double quantum wells is studied by recording photoluminescence spectra and photoluminescence decay spectra. The exciton tunnelling from the wide well to the narrow well and the thermal dissociation of excitons are two factors that influence the exciton recombination in this structure. In the narrow well, both of the two processes decrease the emission intensity, whereas, in the wide well, these two processes have contrary influences on the exciton density. The change of the emission intensity depends on which is the stronger one. (author)

  17. Energetic intensity and exportation: an analysis of the period 1997-2004; Intensidade energetica e exportacao: uma analise do periodo 1997-2004

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Munir Younes; Bermann, Celio [Universidade de Sao Paulo (USP), SP (Brazil). Programa Interunidades de Pos-Graduacao em Energia (PIPGE)]. E-mails: munir@iee.usp.br; muniryounes@yahoo.com.br; cbermann@iee.usp.br; Cavaliero, Karla Kazue Nakao [Universidade Estadual de Campinas (UNICAMP), Campinas, SP (Brazil). Fac. de Engenharia Mecanica. Programa de Pos-graduacao em Planejamento de Sistemas Energeticos]. E-mail: cavaliero@fem.unicamp.br

    2006-07-01

    This paper aims to analyze the course of industrial energy intensity from 1997 to 2004. A historical retrospective was done in order to explain how the Brazilian industrial option has been influencing the profile of this index, demonstrating that Brazil is following a different trajectory in comparison to the developed countries. To achieve this, an analysis was conducted of the whole metallurgical industry, along with the paper, cellulose and mineral industries and the total Brazilian Industry. The energy intensity, the elasticity energy consume product and the export quantum indicators were calculated for the industry and for each sub sector. To conclude, the results will be discussed and commented. (author)

  18. Thermoeconomic and exegetic analysis of a cogeneration proposal by using natural gas in breweries; Analise termoeconomica e exergetica de uma proposta de cogeracao usando gas natural em cervejarias

    Energy Technology Data Exchange (ETDEWEB)

    Gallego, Antonio Garrido; Martins, Gilberto [Universidade Metodista de Piracicaba (UNIMEP), Santa Barbara do Oeste, SP (Brazil). Faculdade de Engenharia Mecanica e de Producao]. E-mail: agallego@unimep.br; gmartins@unimep.br; Nebra, Silvia Azucena [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica]. E-mail: sanebra@fem.unicamp.br

    2000-07-01

    In this work the thermo economic method is used for analysis of the cost distribution in a cogeneration power plant proposed for a brewery in the Campinas - state of Sao Paulo, Brazil. The thermal process energy demands were considered for beer production in 1997. The proposed cogeneration system consists of two gas turbines with recovering boiler and ammonium compression cooling system. The present power generation configuration and the cogeneration proposed performance were simulated in a monthly basis, considering the month steam and refrigeration requests. The gas turbines were simulated considering the nominal load and the energy surplus sold to the concessionaire.

  19. Survey and analysis of environmental performance indicators applied to thermoelectric generation styles; Levantamento e analise de indicadores de desempenho ambiental aplicados a empreendimentos termeletricos

    Energy Technology Data Exchange (ETDEWEB)

    Freitas, Bruno Moreno Rodrigo de; Cardoso Junior, Ricardo Abranches Felix [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil)

    2010-07-01

    Country economic growth is proportional bond to it electric generation increasing capacity. Brazil, which has a power matrix predominantly renewable, currently is increasing generation, from thermoelectricity, due, mainly, to major facilities in relation to environmental licensing. Since this new Thermal Power Plants operating, tied to the generation with those ones already installed, will result in environmental impacts that must be properly controlled. Such control should follow the Environmental Performance Evaluation guidance, standardized by ABNT NBR ISO 14031/04. Therefore, the following work presents the main Environmental Performance Indicators applied to several thermoelectric generation styles (Oil, Natural Gas, Diesel, Mineral Coal, Biomass, Waste, Solar and Nuclear). (author)

  20. Photovoltaic power: a new perspective for energetic planning, using different analysis criteria; Energia fotovoltaica: uma nova perspectiva para o planejamento energetico, usando criterios diferenciados de analise.

    Energy Technology Data Exchange (ETDEWEB)

    Lacchini, Corrado [Universidade Luterana do Brasil (ULBRA), Gravatai, RS (Brazil). Fac. de Administracao; Santos, Joao Carlos Vernetti [Universidade Luterana do Brasil (ULBRA), Canoas, RS (Brazil). Dept. de Engenharia Eletrica

    2010-07-01

    This article proposes a comparison between photovoltaic and coal fired power plants for electrical energy generation, based on coal reserves in the State of Rio Grande do Sul. Costs associated to the two technologies are compared and considerations are made to costs for prevention and compensation of air, soil and water pollution generated from coal burning, and to funding alternatives with carbon credits that would help the installment of a non pollutant technology. Considering the decreasing trend of the cost of photovoltaic watt, a suggestion for initial financing and limited support is presented, similar to what the European countries make, covering the infant period of the photovoltaic technology in Brazil. (author)

  1. Gamma spectrometry used for analysis of {sup 228}Ra in water; Utilizacao de espectrometria gama para analise de {sup 228} Ra nas aguas

    Energy Technology Data Exchange (ETDEWEB)

    Mancini, Luis Henrique [UNESP, Rio Claro, SP (Brazil). Inst. de Geociencias e Ciencias Exatas; Bonotto, Daniel Marcos [UNESP, Rio Claro, SP (Brazil). Inst. de Geociencias e Ciencias Exatas. Dept. de Petrologia e Metalogenia

    1998-07-01

    A methodology for determination of the natural isotope {sup 228}Ra in water by using the characterization of the underground and superficial waters from thorium an rare earths mineralization at Morro do Ferro, Pocos de Caldas, state of Minas Gerais, Brazil. The values determined for the {sup 228}Ra in water from 5 logging holes ranged from 0.5 to 391.2 pCi/l and the superficial waters presented a variation of 1.0 to 13.9 pCi/l.

  2. Preparation, homogeneity and stability studies of a candidate LRM for Se speciation

    Energy Technology Data Exchange (ETDEWEB)

    Bodo, Erzsebet Tuende; Stefanka, Zsolt; Ipolyi, Ildiko; Soeroes, Csilla; Dernovics, Mihaly; Fodor, Peter [Department of Applied Chemistry, Faculty of Food Science, Szent Istvan University, Villanyi ut 29-33, 1118, Budapest (Hungary)

    2003-09-01

    A laboratory reference material (LRM) was prepared from Brazil nuts (Bertholletia excelsa) for quality control (QC) purposes of selenium speciation. The preparation of this LRM led through the usual operation steps applied during routine reference material production from biota samples - preparation of the raw material, homogenisation, storage design, checking of homogeneity, microbiological status and possible irradiation effects, and monitoring the species stability vs time at different storage temperatures. The selenium speciation studies to check species stability were carried out on a HPLC-UV-HG-AFS measurement set-up. Special attention was paid to the correct identification of selenium species by applying independent HPLC separation techniques (ion-pairing and anion-exchange chromatography). The concentration of selenomethionine (SeMet) and total Se content were quantified (79.9 {mu}g g{sup -1} (calculated as Se) and 82.9 {mu}g g{sup -1}, respectively). The homogeneity and stability of this candidate reference material passed the relevant tests recommended by Bureau Communautaire de Reference (BCR). (orig.)

  3. Synthesis and optical study of green light emitting polymer coated CdSe/ZnSe core/shell nanocrystals

    Energy Technology Data Exchange (ETDEWEB)

    Tripathi, S.K., E-mail: surya@pu.ac.in [Department of Physics, Center of Advanced Study in Physics, Panjab University, Chandigarh 160 014 (India); Sharma, Mamta [Department of Physics, Center of Advanced Study in Physics, Panjab University, Chandigarh 160 014 (India)

    2013-05-15

    Highlights: ► Synthesis of Polymer coated core CdSe and CdSe/ZnSe core/shell NCs. ► From TEM image, the spherical nature of CdSe and CdSe/ZnSe is obtained. ► Exhibiting green band photoemission peak at 541 nm and 549 nm for CdSe core and CdSe/ZnSe core/shell NCs. ► The shell thickness has been calculated by using superposition of quantum confinement energy model. - Abstract: CdSe/ZnSe Core/Shell NCs dispersed in PVA are synthesized by chemical method at room temperature. This is characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV/Vis spectra and photoluminescence spectroscopy (PL). TEM image shows the spherical nature of CdSe/ZnSe core/shell NCs. The red shift of absorption and emission peak of CdSe/ZnSe core/shell NCs as compared to CdSe core confirmed the formation of core/shell. The superposition of quantum confinement energy model is used for calculation of thickness of ZnSe shell.

  4. Brazil-U.S. Relations

    Science.gov (United States)

    2010-03-05

    pharmaceutical industry . In May 2001, the United States submitted a complaint to the WTO, which was later withdrawn, that Brazil’s practices violated...the pharmaceutical industry argued that TRIPS was an essential tool to protect intellectual property rights, developing countries (like Brazil... Argentina , Paraguay, and Uruguay that was established in 1991. See CRS Report RL33620, Mercosur: Evolution and Implications for U.S. Trade Policy

  5. Spherical tokamak development in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, G.O.; Del Bosco, E.; Ferreira, J.G.; Berni, L.A.; Oliveira, R.M.; Andrade, M.C.R.; Shibata, C.S.; Ueda, M.; Barroso, J.J.; Castro, P.J. [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Lab. Associado de Plasma; Barbosa, L.F.W. [Universidade do Vale do Paraiba (UNIVAP), Sao Jose dos Campos, SP (Brazil). Faculdade de Engenharia, Arquitetura e Urbanismo; Patire Junior, H. [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Div. de Mecanica Espacial e Controle; The high-power microwave sources group

    2003-12-01

    This paper describes the general characteristics of spherical tokamaks, or spherical tori, with a brief overview of work in this area already performed or in progress at several institutions worldwide. The paper presents also the steps in the development of the ETE (Experimento Tokamak Esferico) project, its research program, technical characteristics and operating conditions as of December, 2002 at the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  6. Spherical tokamak development in Brazil

    International Nuclear Information System (INIS)

    Ludwig, G.O.; Del Bosco, E.; Ferreira, J.G.; Berni, L.A.; Oliveira, R.M.; Andrade, M.C.R.; Shibata, C.S.; Ueda, M.; Barroso, J.J.; Castro, P.J.; Barbosa, L.F.W.; Patire Junior, H.; The high-power microwave sources group

    2003-01-01

    This paper describes the general characteristics of spherical tokamaks, or spherical tori, with a brief overview of work in this area already performed or in progress at several institutions worldwide. The paper presents also the steps in the development of the ETE (Experimento Tokamak Esferico) project, its research program, technical characteristics and operating conditions as of December, 2002 at the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  7. Spherical tokamak development in Brazil

    International Nuclear Information System (INIS)

    Ludwig, Gerson Otto; Bosco, Edson Del; Ferreira, Julio Guimaraes

    2003-01-01

    The general characteristics of spherical tokamaks, or spherical tori, with a brief view of work in this area already performed or in progress at several institutions worldwide are described. The paper presents also the steps in the development of the ETE (Experiment Tokamak spheric) project, its research program, technical characteristics and operating conditions as of December, 2002 a the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  8. Spherical tokamak development in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Ludwig, Gerson Otto; Bosco, Edson Del; Ferreira, Julio Guimaraes [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil). Lab. Associado de Plasma] (and others)

    2003-07-01

    The general characteristics of spherical tokamaks, or spherical tori, with a brief view of work in this area already performed or in progress at several institutions worldwide are described. The paper presents also the steps in the development of the ETE (Experiment Tokamak spheric) project, its research program, technical characteristics and operating conditions as of December, 2002 a the Associated Plasma Laboratory (LAP) of the National Space Research Institute (INPE) in Brazil. (author)

  9. Implementação de uma bancada de ensaios para analise de estrategias de controle de sistemas de refrigeração e ar condicionado

    OpenAIRE

    Fabio Alejandro Carvajal Florez

    2004-01-01

    Resumo: No presente trabalho se realiza o estudo do controle da válvula de expansão e da velocidade de rotação do motor do compressor para um sistema de ar condicionado com armazenamento térmico em banco de gelo. Utilizando os princípios de projeto térmico, projeto eletrônico, programação de computadores e técnicas de controle procuram-se o aumento da eficiência do sistema. Neste controle propostos usou-se a lógica difusa. Inicialmente controlou-se o grau de superaquecimento através do contro...

  10. Abortion in Brazil: A Search For Rights

    OpenAIRE

    Anjos, Karla Ferraz dos; Santos, Vanessa Cruz; Souzas, Raquel; Eugênio, Benedito Gonçalves

    2013-01-01

    Discussing the abortion theme in Brazil is highly problematic since it involves ethical, moral and legal precepts. The criminalization of abortion in Brazil favors a clandestine and unsafe practice and can lead to serious consequences to women´s health. In this perspective, this research deals with the legal context in which the abortion problem is inscribed in Brazil, coupled to the specific aims in pinpointing complications caused by the criminalization of clandestine abortion besides deali...

  11. Status of uranium in Brazil

    International Nuclear Information System (INIS)

    Majdalani, S.A.; Tavares, A.M.

    2001-01-01

    Uranium exploration in Brazil was started in 1952 by the Brazilian National Research Council. This led to the discovery of the first uranium deposits in Pocos de Caldas and Jacobina. These activities was later continued by the National Energy Commission/Comissao Nacional de Energia Nuclear (CNEN), formed in 1962. The founding of NUCLEBRAS at the end of 1974 marked the increasing effort of the country's uranium exploration programme. At this time only the Pocos de Caldas deposit was known with measurable resources. Due to the reorganization of the Brazilian nuclear programme in 1988, all uranium exploration in the country was stopped. By then, eight areas with uranium reserves has been identified. Brazil uranium resources in the RAR category at ≤ $80/kg U cost range are estimated to be 162,000 tonnes U, out of which 56,100 tonnes are in the ≤ $40/kg U cost range. Additional resources in the EAR-I category and the cost range ≤ 80/kg U are in the order of 100,200 tonnes U. The first production of uranium in Brazil, at the Osamu Utsumi mine (Pocos de Caldas deposit), started in 1982. Because of escalated costs and reduced demand, this activity was put on stand-by status between 1990 and 1992. The mine was restarted in 1993, but was stopped again in October 1995. The cumulative production of the mine to 1996 was 1241 tonnes U. The Lagoa Real deposit is currently being prepared as a new producing mine. (author)

  12. Decentralization and REDD+ in Brazil

    Directory of Open Access Journals (Sweden)

    Fabiano Toni

    2011-01-01

    Full Text Available Recent discussions on REDD+ (Reducing Emissions from Deforestation and Forest Degradation, plus conservation, sustainable management of forests and enhancement of forest carbon stocks have raised optimism about reducing carbon emissions and deforestation in tropical countries. If approved under the United Nations Framework Convention on Climate Change (UNFCCC, REDD+ mechanisms may generate a substantial influx of financial resources to developing countries. Some authors argue that this money could reverse the ongoing process of decentralization of forest policies that has spread through a large number of developing countries in the past two decades. Central states will be accountable for REDD+ money, and may be compelled to control and keep a significant share of REDD+ funds. Supporters of decentralization argue that centralized implementation of REDD+ will be ineffective and inefficient. In this paper, I examine the relation between subnational governments and REDD+ in Brazil. Data show that some state governments in the Brazilian Amazon have played a key role in creating protected areas (PAs after 2003, which helped decrease deforestation rates. Governors have different stimuli for creating PAs. Some respond to the needs of their political constituency; others have expectations to boost the forest sector so as to increase fiscal revenues. Governors also have led the discussion on REDD+ in Brazil since 2008. Considering their interests and political power, REDD+ is unlikely to curb decentralization in Brazil.

  13. Uma vida que se esvai no Parkinson

    Directory of Open Access Journals (Sweden)

    Eliane Michelini Marraccini

    Full Text Available A doença de Parkinson é uma síndrome neurológica de evolução lenta e progressiva que emerge na idade madura e velhice. A crescente debilitação física contrasta com a manutenção da integridade mental, na maioria dos pacientes até o fim da vida. Nessa enfermidade incurável, que costuma perdurar por longos anos, surgem importantes reações físicas diante da progressiva incapacitação, com profundos reflexos na subjetividade do paciente. Este trabalho refere-se ao atendimento de uma paciente, acompanhada em seu processo de conscientização e elaboração da irreversibilidade da doença. Ao final,é ressaltada a intrínseca articulação somatopsíquica, com destaque para a depressão na acentuação dos sintomas parkinsonianos.

  14. PREPARATION, SPECTROSCOPIC AND STRUCTURAL CHARACTERIZATION OF ETA-1-N AND ETA-2-SE,SE' COMPLEXES OF A P2N4SE2 RING

    NARCIS (Netherlands)

    CHIVERS, T; DOXSEE, DD; HILTS, RW; MEETSMA, A; PARVEZ, M; VANDEGRAMPEL, JC

    1992-01-01

    The reaction of 1,5-Ph4P2N4Se2, 1, prepared by the treatment of Ph2PN2(SiMe3)3 with a mixture of SeCl4 and Se2Cl2 in acetonitrile, with [PtCl2(PEt3)]2 gives the adducts [PtCl2(PEt3)]n[eta1-N-Ph4P2N4Se2] (2, n = 1; 3, n = 2) in which the P2N4Se2 ring is shown by an X-ray structural determination of 3

  15. Study on InSe-GaSe heterojunctions produced by realization of the optical contact

    International Nuclear Information System (INIS)

    Bakumenko, V.L.; Kovalyuk, Z.D.; Kurbatov, L.N.; Tagaev, V.G.; Chishko, V.F.

    1980-01-01

    Investigated were current-farad and current voltage characteristics as well as electroluminescence of InSe-GaSe heterojunctions (HJ) produced by the method of realization of optical contact (ROC). Basing on the results of the investigations suggested is a HJ energy scheme and determined are mechanisms of carriers transfer through unlighted transition on flowing current in different regimes. Efficiency of HJ production method applied is concluded. The ROC method permits to produce abrupt HJs. Producing by such a way HJ is not accompanied by formation of states with high density, localized at interface boundary and changing the barrier height in HJ as compared with a value expected from contact difference in potentials. A tunnel-recombination process with participation of states in a forbidden zone is the mechanism determining the carrier transfer through HJ in a straight direction before barrier removal. Current through HJ after barrier removal flows in the form of injection currents in both directions leading to the decrease of base resistance GaSe and intensive luminescence from the InSe area adjoining to HJ. Currents in case of reverse displacements have the character of currents in case of the Ziener reversible break-down. HJ produced by the ROC method have well reproducible characteristics testifying to the method efficiency

  16. In situ observation of the formation of FeSe

    DEFF Research Database (Denmark)

    Grivel, Jean-Claude; Wulff, Anders Christian; Yue, Zhao

    2011-01-01

    The formation of the FeSe compound from a mixture of Fe and Se powders encased in a composite Cu/Nb sheath was studied in situ by means of high-energy synchrotron x-ray diffraction. Tetragonal beta-FeSe does not seem to form directly from the starting elements. Instead, a sequence of FeSe2, Fe3Se4...

  17. As discussões sobre a sustentabilidade na atividade turística: uma analise para o Brasil na ultima década

    Directory of Open Access Journals (Sweden)

    Nathália Roncada de Freitas

    2014-01-01

    Full Text Available Debido a la importancia del turismo, como una actividad económica en Brasil, y su efecto sobre el medio ambiente, al que se inserta, se deben entender los debates sobre el tema en los últimos diez años. Este estudio tiene como objetivo general analizar los principales debates relacionados con la sostenibilidad del turismo en Brasil en la última década. Así se estructuró el diseño metodológico exploratorio descriptivo en el que se analizaron los artículos científicos publicados en revistas nacionales (en portugués en las áreas de Administración, Contabilidad y Turismo de 2003 a 2012. Finalmente, se concluye que las variables son interdependientes, una complementa a la otra, y toda la investigación en su conjunto contribuye al crecimiento y una mejor calidad de la sostenibilidad en el turismo. Sin embargo, la falta de investigación, en esta área, es todavía grande; a pesar de la evidencia sobre el tema de sostenibilidad, en comparación con la cantidad de artículos publicados en revistas, es poco lo que se debate entre los investigadores en turismo.

  18. Analysis of the strategic alliances in the Brazilian oil and gas exploration and production sector; Analise das aliancas estrategicas no setor de exploracao e producao do Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Daxbacher, Egon F.; Macedo-Soares, T. Diana L.V.A. de [Pontificia Univ. Catolica do Rio de Janeiro, RJ (Brazil)

    2000-07-01

    This paper analyzes the strategic alliance arrangements and management in the Brazilian oil and gas exploration and production industry after the establishment of the law 9.478/97. This law promoted competition in the oil and gas sector, mainly through Brazil Round 1, the first round of bids for oil and gas exploration and production, raised by the Agencia Nacional do Petroleo (ANP), the brazilian petroleum agency. This paper also describes the theoretical basis of the key factors that lead to the companies to form strategic alliances, the types of relationships formed about the symmetry of objectives, and the internal requirements that the partner companies should possess to guarantee the survival of these. It analyzes the Likert research results that was sent to all the companies that formed winner alliances in the Brazil Round 1. The conclusion is that most of the companies possessed the requirements to manage the alliance and in spite of a perception of similar objectives by the companies, the research indicates that the partners have some similar objectives, and some dissimilar objectives. This indicate that alliances are characterized as mixed alliances. (author)

  19. Identification of energy gain potential in industrial processes, through exergetic analysis; Identificacao de potenciais de ganho energetico em processos industriais via analise exergetica

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Lis Nunes; Silva, Ricardo Junqueira; Bernardes, Lucas Lanza; Filgueiras, Pedro Freire [V e M do Brasil S.A., Belo Horizonte, MG (Brazil)

    2011-12-21

    V and M Brazil is an integrated steel mill for the production of steel tubes. The manufacturing process includes various processes and thermal equipment, such as industrial furnaces, boilers, and others. Due to its importance, it is essential that these devices operate with the best possible efficiency. Thus, it becomes necessary to use tools and methods for performance analysis of energy processes that occurs on these devices. One tool that has been widely used in industrial environment is the exergy analysis. It is based on the Second Law of Thermodynamics, and therefore takes into account the entropy generation, indicating the maximum amount of useful energy (work) that can be drawn from a stream, with reference to environmental parameters. This paper aims to apply the exergetic methodology in industrial thermal processes that occurs at V and M Brazil, as a tool for identification of losses and potential performance improvement of energy systems to save on fuel and the reduction of environmental impacts and emissions of greenhouse gases. (author)

  20. Bio-fortification and isotopic labelling of Se metabolites in onions and carrots following foliar application of Se and 77Se

    DEFF Research Database (Denmark)

    Kápolna, Emese; Laursen, Kristian H.; Husted, Søren

    2012-01-01

    The aims were to bio-fortify onions by foliar application of selenium (Se) and to intrinsically label bioactive Se-metabolites in onion and carrot by enriched, stable 77Se for use in human physiological studies. Onion bulbs and leaves were enriched in Se by repeated foliar spraying of 10 or 100μg......Seml−1 solutions of sodium selenite (Se(IV)) or sodium selenate (Se(VI)). ICP-MS analysis of onion leaves and bulbs showed that the Se concentration was enhanced by up to a factor of approximately 50 and 200 in bulbs and leaves, respectively. HPLC–ICP-MS analysis of proteolytic plant extracts showed...... that foliar application of Se(IV) gave rise to bio-synthesis of a higher fraction of the desired organic Se species and was better tolerated by the plants than Se(VI). Based on these findings onions and carrots were bio-fortified by foliar application of a solution of 77Se(IV) that was enriched to 99.7% as 77...

  1. Photoinduced aging and viscosity evolution in Se-rich Ge-Se glasses

    Energy Technology Data Exchange (ETDEWEB)

    Gueguen, Yann; Sangleboeuf, Jean-Christophe; Rouxel, Tanguy [LARMAUR ERL CNRS 6274, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France); King, Ellyn A.; Lucas, Pierre [Department of Materials Science and Engineering, University of Arizona, 4715 E. Fort Lowell Road, Tucson, Arizona 85712 (United States); Keryvin, Vincent [LIMATB EA 4250, Université de Bretagne Sud, Rue de Saint Maudé, 56321 Lorient Cedex (France); Bureau, Bruno [Equipe Verres et Céramiques, UMR-CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)

    2013-08-21

    We propose here to investigate the non-equilibrium viscosity of Ge-Se glasses under and after light irradiation. Ge{sub 10}Se{sub 90} and Ge{sub 20}Se{sub 80} fibers have been aged in the dark and under ambient light, over months. During aging, both the relaxation of enthalpy and the viscosity have been investigated. The viscosity was measured by shear relaxation-recovery tests allowing the measurement of non-equilibrium viscosity. When Ge{sub 10}Se{sub 90} glass fibers are aged under irradiation, a relatively fast fictive temperature decrease is observed. Concomitantly, during aging under irradiation, the non-equilibrium viscosity increases and reaches an equilibrium after two months of aging. This viscosity increase is also observed in Ge{sub 20}Se{sub 80} fibers. Nevertheless, this equilibrium viscosity is far below the viscosity expected at the configurational equilibrium. As soon as the irradiation ceases, the viscosity increases almost instantaneously by about one order of magnitude. Then, if the fibers are kept in the dark, their viscosity slowly increases over months. The analysis of the shear relaxation functions shows that the aging is thermorheologically simple. On the other side, there is no simple relaxation between the shear relaxation functions measured under irradiation and those measured in the dark. These results clearly suggest that a very specific photoinduced aging process occurs under irradiation. This aging is due to photorelaxation. Nevertheless, the viscosity changes are not solely correlated to photoaging and photorelaxation. A scenario is proposed to explain all the observed viscosity evolutions under and after irradiation, on the basis of photoinduced transient defects.

  2. Benefits of oxygen in CuInSe2 and CuGaSe2 containing Se-rich grain boundaries

    International Nuclear Information System (INIS)

    Feng, Chunbao; Luo, Min; Li, Bolin; Li, Dengfeng; Nie, Jinlan; Dong, Huining

    2014-01-01

    Using density functional theory calculation, we show that oxygen (O) exhibits an interesting effect in CuInSe 2 and CuGaSe 2 . The Se atoms with dangling bonds in a Se-rich Σ3 (114) grain boundary (GB) create deep gap states due to strong interaction between Se atoms. However, when such a Se atom is substituted by an O atom, the deep gap states can be shifted into valence band, making the site no longer a harmful non-radiative recombination center. We find that O atoms prefer energetically to substitute these Se atoms and induce significant lattice relaxation due to their smaller atomic size and stronger electronegativity, which effectively reduces the anion–anion interaction. Consequently, the deep gap states are shifted to lower energy regions close or even below the top of the valence band.

  3. O Brazil-Medico e as contribuições do pensamento médico-higienista para as bases científicas da educação física brasileira Brazil-Medico and the contributions of medical-hygienist thought to the scientific bases of Brazilian physical education

    Directory of Open Access Journals (Sweden)

    Maria Isabel Brandão de Souza Mendes

    2008-03-01

    Full Text Available O final do século XIX e o início do XX foram emblemáticos para a 'cientificização' da educação física no Brasil. A presente investigação se direcionou para o Brazil-Medico no período de 1887-1923, com o objetivo de identificar as compreensões de corpo e saúde, buscando-se contribuições para as bases científicas da educação física brasileira.The end of the nineteenth century and beginning of the twentieth were emblematic in the 'scientifization' of physical education in Brazil. This examination of the journal Brazil-Medico during 1887-1923 seeks to identify views of the body and health as well as contributions to the scientific bases of physical education in Brazil.

  4. Freshwater flux to Sermilik Fjord, SE Greenland

    Directory of Open Access Journals (Sweden)

    S. H. Mernild

    2010-10-01

    Full Text Available Terrestrial inputs of freshwater flux to Sermilik Fjord, SE Greenland, were estimated, indicating ice discharge to be the dominant source of freshwater. A freshwater flux of 40.4 ± 4.9×109 m3 y−1 was found (1999–2008, with an 85% contribution originated from ice discharge (65% alone from Helheim Glacier, 11% from terrestrial surface runoff (from melt water and rain, 3% from precipitation at the fjord surface area, and 1% from subglacial geothermal and frictional melting due to basal ice motion. The results demonstrate the dominance of ice discharge as a primary mechanism for delivering freshwater to Sermilik Fjord. Time series of ice discharge for Helheim Glacier, Midgård Glacier, and Fenris Glacier were calculated from satellite-derived average surface velocity, glacier width, and estimated ice thickness, and fluctuations in terrestrial surface freshwater runoff were simulated based on observed meteorological data. These simulations were compared and bias corrected against independent glacier catchment runoff observations. Modeled runoff to Sermilik Fjord was variable, ranging from 2.9 ± 0.4×109 m3 y−1 in 1999 to 5.9 ± 0.9×109 m3 y−1 in 2005. The sub-catchment runoff of the Helheim Glacier region accounted for 25% of the total runoff to Sermilik Fjord. The runoff distribution from the different sub-catchments suggested a strong influence from the spatial variation in glacier coverage, indicating high runoff volumes, where glacier cover was present at low elevations.

  5. Brazil : tous les projets | Page 9 | CRDI - Centre de recherches pour ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Région: Argentina, South America, Brazil, Colombia, North and Central America. Programme: Économies en réseaux. Financement total : CA$ 849,800.00. Synthèse de la recherche sur les moyens de subsistance pouvant remplacer la culture du tabac. Projet. Dans l'espoir de faire obstacle aux politiques visant à réduire la ...

  6. Growth of CuInSe2 and In2Se3/CuInSe2 nano-heterostructures through solid state reactions.

    Science.gov (United States)

    Hsin, Cheng-Lun; Lee, Wei-Fan; Huang, Chi-Te; Huang, Chun-Wei; Wu, Wen-Wei; Chen, Lih-Juann

    2011-10-12

    In(2)Se(3) is an essential phase change material and CuInSe(2) is the fundamental basis of the copper-indium-gallium-diselenide (CIGS) solar energy material. In this paper, we demonstrate the feasibility to transform the phase change material to the solar energy material via the solid state reaction. The In(2)Se(3) nanobelts (NBs) were synthesized via the vapor-liquid-solid mechanism. The chemical composition and the optical properties were investigated by energy dispersive spectroscopy, X-ray photoelectron spectroscopy, and reflectance and photoluminescence spectra. In the in situ observation of the solid state reaction with Cu to form the CuInSe(2) NBs with ultrahigh vacuum transmission electron microscopy, we observed the In(2)Se(3)/CuInSe(2) transformation at atomic scale in real time. The progression of the atomic layer at the interface provided the pertinent information on the kinetic mechanism. In(2)Se(3)/CuInSe(2) nano-heterostructures were also obtained in the present investigation. The approach to the CIGS nanosolar cell was also proposed. This study shall be beneficial in the development of high-performance nanowire solar cells and nanodevices with In(2)Se(3)/CuInSe(2) nano-heterostructures.

  7. La desaceleración económica colombiana: se cosecha lo que se siembra

    Directory of Open Access Journals (Sweden)

    Carlos Humberto Ortiz

    2009-12-01

    Full Text Available La desaceleración económica que experimenta Colombia desde 1980 se explica por el estancamiento estructural de la economía y por la escalada de violencia relacionada con la expansión del narcotráfico. Los datos disponibles no rechazan esta hipótesis. El artículo plantea que la desindustrialización y el narcotráfico se forjaron en el mismo crisol: un modelo de desarrollo que ha integrado progresivamente la economía nacional a los mercados mundiales al tiempo que ha renunciado, también progresivamente, a la opción industrialista. Además, argumenta que la explosión del narcotráfico obedece a la profundización de la guerra contra las drogas en un contexto de demanda mundial creciente e inelástica.

  8. Por uma cidade que se move e se comunica: corpo, rua e improviso

    Directory of Open Access Journals (Sweden)

    Julia Saldanha Vieira de Aguiar

    2009-06-01

    Full Text Available Este trabalho trata da relação de um lugar com suas pessoas. A reflexão acontece a partir de um estudo de caso: o Camelódromo da Praça XV. O Camelódromo foi uma grande feira, que durante 40 anos ocupou um espaço importante no centro de Porto Alegre/RS. (Auto organizado e vivido principalmente pelo povo, o fenômeno se configurava em um lugar onde improviso e estética constituiam o modo de ser e agir no cotidiano da rua. Ironicamente, no início de 2009, o Camelódromo foi transferido para dentro de um prédio. Hoje, onde se desenrolava o espetáculo do imprevisível, encontra-se um estacionamento para carros. Este trabalho foi produzido nos últimos meses do Camelódromo; em um espírito de elogio à estética do improviso e à auto-organização. Buscamos articular idéias da teoria da complexidade, do urbanismo, das artes e da comunicação, para tentar compreender um pouco essa manifestação espontânea, tão característica da urbe no século XXI.

  9. Treatment analysis of incentive politics for renewable energy projects in the clean development mechanism (CDM): the Brazilian case; Analise do tratamento das politicas de incentivos a projetos de energias renovaveis no mecanismo de desenvolvimento limpo (MDL): o caso brasileiro

    Energy Technology Data Exchange (ETDEWEB)

    Medeiros, Anamelia; Hauser, Philipp, Emails: anameliam@yahoo.com.br, philipphauser@web.de

    2010-07-01

    This paper analyses the politics for mitigation recently adopted by the Brazil, and discuss his treatment under the rules of CDM, viewing to contribute for a transparent solution which to allow the conciliation global and national politics for the clean expansion of the energy sector in Brazil.

  10. Analysis of constraints to the introduction of LNG plants in the Brazilian electric sector; Analise dos condicionantes para a introducao de plantas a GNL no setor eletrico brasileiro

    Energy Technology Data Exchange (ETDEWEB)

    Cortes, Tatiane Moraes Pestana

    2010-03-15

    This work aims analyze the constraints to the introduction of LNG in the Brazilian energy matrix. Therefore, considers the current regulatory framework and the investments recently made by PETROBRAS to acquire LNG in the international market in order to supply power plants in the country. In order to assess the current status of the LNG plants in the electricity sector, factors are analyzed in terms of the natural gas industry and electric power industry, such as: storage, LNG contracts, operating dispatch, LNG plants pricing and operational flexibility. Despite the increase in LNG international trade and the prospect of using this product in Brazil, there are some challenges for the effective use of LNG plants by Brazilian electric sector. Some of the challenges are the need to review the methodology of calculating the cost benefit of LNG power plants. Another important challenge is to examine the use of underground storage and its influence in the operating dispatch of LNG plants. (author)

  11. Analysis of cogeneration system using fuel cell: cases study; Analise de sistema de cogeracao utilizando celula de combustivel: estudo de casos

    Energy Technology Data Exchange (ETDEWEB)

    Silveira, Jose Luz; Leal, Elisangela Martins [UNESP, Guaratingueta, SP (Brazil). Escola de Engenharia. Dept. de Energia]. E-mails: joseluz@feg.unesp.br; elisange@feg.unesp.br

    2000-07-01

    In this paper, a methodology for the study of a molten carbonate fuel cell cogeneration system associated to an absorption refrigeration system, for the electricity and cold water production, and applied to two establishments, is presented. This system permits the recovery of waste heat, available between 600 deg C e 700 deg C. Initially, some technical information about the most diffusing types of the fuel cell demonstration in the world are presented. In the next step, an energetic, exergetic and economic analysis are carry out, seeking the use of fuel cells, in conditions of prices and interest of Brazil. In conclusion, the fuel cell cogeneration system may have an excellent opportunity to strengthen the decentralized energy production in the Brazilian energy scene. (author)

  12. An analysis of Science and Technology indicator by stages in the petroleum production chain; Analise de indicador de C e T nos elos da cadeia produtiva petrolifera

    Energy Technology Data Exchange (ETDEWEB)

    Martini, Ana Amelia M.G.; Antunes, Adelaide M.S. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Escola de Quimica. Programa de Pos-Graduacao em Processos Quimicos e Bioquimicos

    2004-07-01

    Taking into account the global importance of the petroleum industry, the present work aims to present a study of this industry through the lens of its production chain, using bibliometric indicators of technological innovation in order to determine critical competitiveness factors. The concept of the production chain includes the set of activities undertaken progressively from raw material to the final product, including distribution and sales, with each segment being a link in the chain. The petroleum industry is composed of a production chain which may be divided into the following segments: exploration and production, transportation of crude oil and natural gas, refining, transportation of derivatives and distribution. The development of the present work involved the analysis of information about the petroleum production chain in Brazil and elsewhere, gathered through research in specialized database. The analysis of bibliometric indicators of technological innovation in each link of the production chain maps the technological trends existing in this chain. (author)

  13. Integral analysis of the drill string dynamic behaviour to optimize drilling operation; Analise integrada do comportamento dinamico da coluna para otimizacao de perfuracao

    Energy Technology Data Exchange (ETDEWEB)

    Lima, Araken [Smith International do Brasil, Macae, RJ (Brazil); Placido, Joao C.R.; Percy, Joseir G.; Falcao, Jose; Freire, Helena; Ono, Eduardo H.; Masculo, Miguel S. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Azuaga, Denise; Frenzel, Mark [Smith International Inc., Houston, TX (United States)

    2008-07-01

    For a performance preview of a drilling system is necessary a dynamic and integrated modeling for understanding all system forces resulting from the combination of the rock strength, cut structure action, drilling parameters, BHA and all others drilling components. This study must predict, for the drill string, vibrations and torsions, from bit to surface, its origins and its effects, and provides the best way to reduce these vibrations, determining the best bit, BHA and drilling parameters. Thereby, this study eliminates the trial and error approach and the operation risks. This paper aims to present studies of optimization for two drilling wells conducted in Brazil, one in Santos Basin and other in Campos Basin, and compares the numerical simulations results with the data from drilling operations. (author)

  14. Analysis of environmental studies of the mammals in small hydroelectrics power in the Espirito Santo; Analise dos estudos ambientais da mastofauna em pequenas centrais hidreletricas do Espirito Santo

    Energy Technology Data Exchange (ETDEWEB)

    Bonesi, Patricia Conde

    2011-10-15

    The hydroelectric projects have been the main form to supply the energy demand in Brazil. Although it has been considered a way of clean generation, it brings many environmental impacts. Due to the fact that inconsistencies in environmental impact studies often occur, this study aimed to evaluate the quality of environmental diagnosis of the mammals in SHP in the Espirito Santo. Therefore, was notice an insufficient data survey, because of the relevance given to the secondary data and the lack of seasonal investigations, bringing damages to the proposals submitted of environmental compensation. This way, manners ware proposed that aim to improve the quality of these studies, which include since environmental awareness programs at the penalizing of those involved in such studies. (author)

  15. Properties of Brazil nuts: A review

    African Journals Online (AJOL)

    aghomotsegin

    2015-02-25

    Feb 25, 2015 ... family of Lecythidaceae, is native to the Amazon rain forest and adjacent areas in Brazil, Bolivia, Peru (Ferreira et al., 2011). It is an extractive product with high ... humidity below 15%) to be processed in-shell or shelled. Figure 1 shows a flowchart of Brazil nut production. The nuts that do not meet the size ...

  16. Brazil dominates global fuel ethanol industry

    International Nuclear Information System (INIS)

    Abrantes, Dayse

    2006-01-01

    Brazil is on its way to become oil self-sufficient this year and will meet its demand for fuel by increasing production from petroleum and ethanol. Flex-fuel cars that run on both gasoline and ethanol make up three-fourths of new car sales in Brazil. Brazilian companies are aiming to double their exports of ethanol by 2010

  17. Forging partnerships in Brazil | IDRC - International Development ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2011-05-09

    May 9, 2011 ... Brazil — Mercury contamination in the Amazon. Brazilian and Canadian researchers seeking to find the source of mercury contamination in the Amazon came to a startling conclusion: agricultural p. View moreBrazil — Mercury contamination in the Amazon ...

  18. Rising Expectations in Brazil and Chile

    Science.gov (United States)

    Elacqua, Gregory; Alves, Fatima

    2014-01-01

    Two themes connect Brazil and Chile: one is economic success; the other is social unrest. Protests rocked cities across Brazil in June 2013, and in Chile, recent student protests turned violent. Yet living conditions in both nations are better now than they've ever been. Successful economic and social reforms over the last two decades have led to…

  19. Brazil = Brasil. America = Las Americas [Series].

    Science.gov (United States)

    Toro, Leonor; And Others

    Written for teachers to use with migrant children in elementary grades, this bilingual English/Spanish social studies resource booklet provides an encyclopedia-style overview of Brazil's history, geography, economy, and culture. Topics include Brazil's form of government; geographic regions; holidays; climate; people; music; carnaval celebration;…

  20. An overview on small hydro in Brazil

    International Nuclear Information System (INIS)

    Filho, G.T.

    2008-01-01

    An overview of small-scale hydro development in Brazil was presented in the context of the Brazilian energy sector. Brazil's energy sector is currently comprised of 45 per cent renewable energy. Brazil is the tenth largest energy producer in the world, with an installed capacity of 105.986 MW. Brazil currently has an estimated 258.410 MW of hydroelectric power potential. Small hydropower (SHP) plants in Brazil are defined as plants capable of producing up to 30 MW of power, with a reservoir area smaller than 12 km 2 . It is estimated that SHP plants will provide 5 per cent of Brazil's electrical supply by 2030. SHP plants in Brazil typically use Kaplan and Pelton hydraulic turbines, as well as Michell-Banki cross-flow turbines. Hydrokinetic turbine prototypes are also being designed at the Federal University of Brazil. Researchers are currently developing a diffuser enhancement design. However, there are currently no designs available that use peripheric generators. Researchers are currently investigating the design of fish-friendly turbines as well as mobile dams. Development projects in the Amazon region were outlined. tabs., figs.

  1. Rainfall erosivity in Brazil: A Review

    Science.gov (United States)

    In this paper, we review the erosivity studies conducted in Brazil to verify the quality and representativeness of the results generated and to provide a greater understanding of the rainfall erosivity (R-factor) in Brazil. We searched the ISI Web of Science, Scopus, SciELO, and Google Scholar datab...

  2. Dinâmicas Sócio-Espaciais Produtivas e a Formação do Território do Morango no Vale do Caí – Brasil Dynamiques socio-spatiales et formation du Territoire de la Fraise dans la vallée du Caí - Brésil Socio-Spatial Dynamicsand formation oftheStrawberry territory, Caí Valley- Brazil

    Directory of Open Access Journals (Sweden)

    Aldomar A. Rückert

    2011-12-01

    concept de territoire. La recherche sur le terrain a été menée dans les communes de Feliz, Bom Princípio et São Sebastião do Caí, situées au cœur de la région productrice, où soixante-quatorze enquêtes ont été réalisées, en s’appuyant sur des questionnaires semi-ouverts destinés aux acteurs impliqués dans la production de fraises. Les analyses réalisées ont montré que la production de fraises a façonné un territoire aux limites flexibles, articulant de multiples échelles, du local aux échelles régionale, nationale et même globale. Le "Territoire de la Fraise" présente une dynamique territoriale propre, fondée sur une légitimité historique construite par dessavoir-faire et des enjeux de pouvoir très variés. Cette dynamique n'est pas restée confinée à l'espace rural : elle fait de plus en plus sens pour les citadins, le produit « fraise » étant progressivement considéré comme partie intégrante de l’identité régionale. Elle contribue aussi à l’émergence d’une territorialité dont les biens immobiliers publics et privés se font l’écho, principalement au sein de la municipalité de Bom Princípio.  En résumé, on peut dire que, les acteurs sociaux se sont, tout d’abord, approprié le fruit, avant que, dans un deuxième temps, ce soit leur production qui investisse le paysage et les actions publiques, en construisant une histoire, une tradition agricole avec des savoir-faire spécifiques. Ce processus a largement contribué à la patrimonialisation de la filière fraisicole de la Vallée du Caí.This article presents the “Caí Valley’s Strawberry Territory”, Rio Grande do Sul, Brazil. It is analised how the strawberry production has potentialized the construction of this territory, structured by power relations, in different scales, and a territoriality visualized in buildings, logotypes and trademarks associated to strawberries. The methodology of the research is qualitative and the thoretical frame is based

  3. Social Environmental Eeterminants and Health: Rural Brazil versus Brazil Urban.

    Directory of Open Access Journals (Sweden)

    Rackynelly Alves SARMENTO

    2015-10-01

    Full Text Available The rural population lives in socioeconomic inequality conditions motivated by several problems, including an insufficient sewage systems and water supply, these, sometimes, most responsibles by the appearance of waterborne diseases that contribute to the rise of child mortality and other problems. Rural areas in Brazil are defined by opposition and exclusion in urban areas. This definition is arbitrary and physical-geographic, not considering the social and economic processes involving the territories. This study purposed to verify, by means of sociodemographic aspects, environmental sanitation and main grievances/diseases importance for public health of the population from forest field and water, if the most rural municipalities (MMR are more precarious than the more urban (MMU. To this end, was carried out a descriptive study based on secondary sources (Atlas of Human Development in Brazil, IBGE census, PNAD and Sinan. Among the results, it follows that the rural population identified by IBGE boils down to 15.6% of Brazil’s population. In 29% of the municipalities, the population living in rural areas exceeds the city. The higher frequencies from IDMH very low are for MMR, while the higher frequency from IDMH very high and high are for MMU. In health, the MMR also exhibit deficiency. It was observed high incidence rates of diseases related to poor conditions of sanitation. From these results, it was identified a more precarious health profile in MMR when compared to MMU.

  4. Socioeconomic and regional differences in active transportation in Brazil.

    Science.gov (United States)

    Sá, Thiago Hérick de; Pereira, Rafael Henrique Moraes; Duran, Ana Clara; Monteiro, Carlos Augusto

    2016-06-27

    To present national estimates regarding walking or cycling for commuting in Brazil and in 10 metropolitan regions. By using data from the Health section of 2008's Pesquisa Nacional por Amostra de Domicílio (Brazil's National Household Sample Survey), we estimated how often employed people walk or cycle to work, disaggregating our results by sex, age range, education level, household monthly income per capita, urban or rural address, metropolitan regions, and macro-regions in Brazil. Furthermore, we estimated the distribution of this same frequency according to quintiles of household monthly income per capita in each metropolitan region of the country. A third of the employed men and women walk or cycle from home to work in Brazil. For both sexes, this share decreases as income and education levels rise, and it is higher among younger individuals, especially among those living in rural areas and in the Northeast region of the country. Depending on the metropolitan region, the practice of active transportation is two to five times more frequent among low-income individuals than among high-income individuals. Walking or cycling to work in Brazil is most frequent among low-income individuals and the ones living in less economically developed areas. Active transportation evaluation in Brazil provides important information for public health and urban mobility policy-making. Apresentar estimativas nacionais sobre o deslocamento a pé ou de bicicleta no trajeto casa-trabalho no Brasil e em 10 de suas regiões metropolitanas. Utilizando dados do Suplemento sobre Saúde da Pesquisa Nacional por Amostra de Domicílios de 2008, estimamos a frequência de pessoas empregadas que se deslocam a pé ou de bicicleta no trajeto casa-trabalho estratificada por sexo, e segundo faixa etária, escolaridade, renda domiciliar per capita, residência em área urbana ou rural, regiões metropolitanas e macrorregiões do país. Adicionalmente, estimamos a distribuição da mesma frequ

  5. Preparation of PbSe nanoparticles by electron beam irradiation ...

    Indian Academy of Sciences (India)

    Wintec

    2 and Se powder reacted under different radiation doses, and the optimal experi- mental conditions were studied. Nanocrystalline PbSe was prepared rapidly at room temperature under atmospheric pressure without any kind of toxic reagents.

  6. The aging population in Brazil

    Directory of Open Access Journals (Sweden)

    Fabio Nasri

    2008-03-01

    Full Text Available Brazil is currently in an advanced stage of both the mortality andfertility transitions, which allows one to confi dently forecast the agedistribution and population size over the next four decades. Whereasthe elderly population with more than 65 years will increase at highrates (2 to 4% per year the young population will decline. Accordingto United Nations projections, the elderly population will increasefrom 3.1% of the population in 1970 to 19% in 2050. The changingage distribution of the Brazilian population brings opportunities andchallenges that could lead to serious social and economic issues ifnot dealt with properly in coming decades.

  7. Malaria in Brazil: an overview.

    Science.gov (United States)

    Oliveira-Ferreira, Joseli; Lacerda, Marcus V G; Brasil, Patrícia; Ladislau, José L B; Tauil, Pedro L; Daniel-Ribeiro, Cláudio Tadeu

    2010-04-30

    Malaria is still a major public health problem in Brazil, with approximately 306,000 registered cases in 2009, but it is estimated that in the early 1940s, around six million cases of malaria occurred each year. As a result of the fight against the disease, the number of malaria cases decreased over the years and the smallest numbers of cases to-date were recorded in the 1960s. From the mid-1960s onwards, Brazil underwent a rapid and disorganized settlement process in the Amazon and this migratory movement led to a progressive increase in the number of reported cases. Although the main mosquito vector (Anopheles darlingi) is present in about 80% of the country, currently the incidence of malaria in Brazil is almost exclusively (99,8% of the cases) restricted to the region of the Amazon Basin, where a number of combined factors favors disease transmission and impair the use of standard control procedures. Plasmodium vivax accounts for 83,7% of registered cases, while Plasmodium falciparum is responsible for 16,3% and Plasmodium malariae is seldom observed. Although vivax malaria is thought to cause little mortality, compared to falciparum malaria, it accounts for much of the morbidity and for huge burdens on the prosperity of endemic communities. However, in the last few years a pattern of unusual clinical complications with fatal cases associated with P. vivax have been reported in Brazil and this is a matter of concern for Brazilian malariologists. In addition, the emergence of P. vivax strains resistant to chloroquine in some reports needs to be further investigated. In contrast, asymptomatic infection by P. falciparum and P. vivax has been detected in epidemiological studies in the states of Rondonia and Amazonas, indicating probably a pattern of clinical immunity in both autochthonous and migrant populations. Seropidemiological studies investigating the type of immune responses elicited in naturally-exposed populations to several malaria vaccine candidates in

  8. Malaria in Brazil: an overview

    Directory of Open Access Journals (Sweden)

    Brasil Patrícia

    2010-04-01

    Full Text Available Abstract Malaria is still a major public health problem in Brazil, with approximately 306 000 registered cases in 2009, but it is estimated that in the early 1940s, around six million cases of malaria occurred each year. As a result of the fight against the disease, the number of malaria cases decreased over the years and the smallest numbers of cases to-date were recorded in the 1960s. From the mid-1960s onwards, Brazil underwent a rapid and disorganized settlement process in the Amazon and this migratory movement led to a progressive increase in the number of reported cases. Although the main mosquito vector (Anopheles darlingi is present in about 80% of the country, currently the incidence of malaria in Brazil is almost exclusively (99,8% of the cases restricted to the region of the Amazon Basin, where a number of combined factors favors disease transmission and impair the use of standard control procedures. Plasmodium vivax accounts for 83,7% of registered cases, while Plasmodium falciparum is responsible for 16,3% and Plasmodium malariae is seldom observed. Although vivax malaria is thought to cause little mortality, compared to falciparum malaria, it accounts for much of the morbidity and for huge burdens on the prosperity of endemic communities. However, in the last few years a pattern of unusual clinical complications with fatal cases associated with P. vivax have been reported in Brazil and this is a matter of concern for Brazilian malariologists. In addition, the emergence of P. vivax strains resistant to chloroquine in some reports needs to be further investigated. In contrast, asymptomatic infection by P. falciparum and P. vivax has been detected in epidemiological studies in the states of Rondonia and Amazonas, indicating probably a pattern of clinical immunity in both autochthonous and migrant populations. Seropidemiological studies investigating the type of immune responses elicited in naturally-exposed populations to several

  9. Geodiversity and geoconservation in Brazil

    Science.gov (United States)

    Cardozo Moreira, Jasmine; Muggler, Cristine Carole

    2014-05-01

    Brazil is a large country with a wide diversity of landscapes and geological features and has been an important world producer of mineral resources. Despite this, until the 90's of last century, there has not been much concern and policies about geological heritage and geoconservation. Only at the end of the century the National Geological Service (CPRM) included the physical characterization of areas with geotouristic interest in its mission of generation and diffusion of geological information. In 1997, was created the Brazilian Commission of Geological and Paleobiological Sites (SIGEP, http://sigep.cprm.gov.br), responsible for the assessment, description and publicizing the sites of geological heritage. This is by now the most comprehensive and relevant initiative to protect the national heritage. It is composed by a fully accessible national database composed by 167 certified sites presented as scientific papers. Furthermore, a web-based applicative for the inventory and protection of geological heritage sites is being developed by the National Geological Service. The wider knowledge about geological heritage can be a useful tool for its conservation and this has been an important goal in the creation of protected areas, by means of environmental education and tourism. In Brazil, actions, research and publications about the subject have increased in the last five years, as well as the outreach and responsible use of the geological heritage. Scientific meetings, conferences and courses are growing and spreading around the country. The main scientific meeting has been the Brazilian Symposium of Geological Heritage that in its second edition (2013) had more than 200 papers presented. At that meeting it was also created the Association in Defence of the Geomining Heritage and the Association of Aspiring Geoparks. Brazil has only one geopark in the Unesco's Global Geopark Network, that is the Araripe Geopark, created in 2006. By the moment, propositions are being

  10. Brazil ALDF System Error Analysis

    Science.gov (United States)

    Rompala, John T.

    1999-01-01

    In a cooperative effort among: the Global Hydrology Climate Center (GHCC) of NASA's Marshal Space Flight Center (MSFC), the Atmospheric Electric Group of the Brazilian National Institute of Space Research, the University of San Paulo (USP), and the Brazilian National Institute of Meteorology (INME), a network of four lightning detectors has been established in Brazil's Rhondonian region. This paper surveys the efforts of GHCC researchers to develop algorithms and field procedures which reliable determine lightning strike locations based on site data comprised of the signal time of arrival, and radiated electromagnetic field.

  11. Paleoparasitologia no Brasil Paleoparasitology in Brazil

    Directory of Open Access Journals (Sweden)

    Marcelo L. C. Gonçalves

    2002-01-01

    Full Text Available Neste artigo faz-se uma revisão sobre o início da paleoparasitologia no Brasil e seu desenvolvimento. A pesquisa de parasitos em vestígios humanos pode trazer informações sobre questões tais como a origem e antiguidade da relação parasito-hospedeiro, distribuição de parasitos através do tempo e migrações humanas pré-históricas. O estudo de seqüências de ADN de parasitos encontrados em tecidos mumificados e coprólitos pode ser uma importante fonte de informação para filogenia e co-evolução parasito-hospedeiro. A análise de ácidos nucléicos de parasitos encontrados em material arqueológico (paleoparasitologia molecular abre novas perspectivas para estudos sobre evolução ao nível molecular.We review the beggining of paleoparasitology and its development in Brazil. The search of parasites in ancient human remains can throw light on such questions as origin and antiquity of parasite-host relationship, general distribution of parasites through time and prehistoric human migrations. The study of parasite DNA sequences found in mummified tissues and coprolites can be an important source of information for phylogenetic and host-parasite coevolution. The nucleic acid based techniques (molecular paleoparasitology open a new perspective to evolution at a molecular level.

  12. 21 CFR 118.4 - Salmonella Enteritidis (SE) prevention measures.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Salmonella Enteritidis (SE) prevention measures. 118.4 Section 118.4 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN....4 Salmonella Enteritidis (SE) prevention measures. You must follow the SE prevention measures set...

  13. Luminescence of nanocrystalline ZnSe:Mn2+

    NARCIS (Netherlands)

    Suyver, J.F.; Wuister, S.F.; Kelly, J.J.; Meijerink, A.

    2000-01-01

    The luminescence properties of nanocrystalline ZnSe:Mn^(2+) prepared via an inorganic chemical synthesis are described. Photoluminescence spectra show distinct ZnSe and Mn^(2+) related emissions, both of which are excited via the ZnSe host lattice. The Mn^(2+) emission wavelength and the

  14. Direct solution-phase synthesis of Se submicrotubes using Se powder as selenium source

    International Nuclear Information System (INIS)

    Yan Shancheng; Wang Haitao; Zhang Yuping; Li Shuchun; Xiao Zhongdang

    2009-01-01

    The selenium submicrotubes were directly prepared using Se powder as selenium source by microwave-assisted method. Field-emission scan electron microscopy (FESEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were adopted to characterize the as-prepared products. The results of high-resolution transmission electron microscopy (HRTEM) and XRD pattern proved that the selenium submicrotubes were single crystalline in nature and [0 0 1] oriented. A possible growth mechanism of the selenium submicrotubes was proposed. The effects of the experimental conditions, such as alkaline concentration and solvent properties, on the morphology and dimension of the products have also been discussed

  15. ANALISE E ADEQUAÇÃO DA PRÁTICA DOCENTE DE FÍSICA EXPERIMENTAL NA REGIÃO DO MATO GRANDE

    Directory of Open Access Journals (Sweden)

    Anderson Pablo Nascimento da Silva

    2011-03-01

    Full Text Available O presente trabalho realiza uma análise inicial a cerca da formação e da pratica docente na região do Mato Grande, Interior do Estado do Rio Grande do Norte, onde recentemente se instalou um campus do Instituto Federal de educação Ciência e Tecnologia do Rio Grande do Norte – IFRN. Dessa forma, buscou-se conhecer a realidade do ensino de Física nessa região, em especial a abordagem experimental, bem como a formação dos professores nesse campo especifico e diante dessa realidade, propor melhorias, a partir da oferta de curso de capacitação em Física experimental. Verificou-se a existência de práticas experimentais no Ensino de Física nestas escolas e quais os métodos utilizados nestas práticas, além de ter sido levantado se a formação dos Professores que lecionam Física é direcionada para a utilização de atividades experimentais em laboratório ou sala de aula. Diante dos resultados propõe-se um curso de capacitação em Física Experimental para os docentes, com o intuito de elevar o nível de ensino no interior do Rio Grande do Norte. PALAVRAS-CHAVE: Física experimental, Formação Docente, ensino de Física

  16. Southern Brasilia Belt (SE Brazil): tectonic discontinuities, K-Ar data and evolution during the Neoproterozoic Brasiliano orogeny

    Energy Technology Data Exchange (ETDEWEB)

    Valeriano, Claudio Morrison de [Universidade do Estado, Rio de Janeiro, RJ (Brazil)]. E-mail: cmval@uerj.br; Teixeira, Wilson [Sao Paulo Univ., SP (Brazil); Simoes, Luiz Sergio Amarante [UNESP, Sao Paulo, SP (Brazil); Heilbron, Monica [Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brasilia, DF (Brazil)

    2000-03-01

    This paper focuses the tectonic evolution of the southern brasilia belt, with emphasis on the Furnas segment, along the 21 deg C S parallel. The uppermost structural unit (Passos Nappe - PN) comprises a highly deformed metasedimentary succession interpreted as a fragment of the Neoproterozoic passive margin of western Sao francisco craton. An inverted metamorphic gradient ranging from greensvhits to lower granulite facies of medium to high-pressure regime characterizes the PN as relict of a subduction zone. The External Domain display a complex imbrication of basement rocks (Archean Piumhi greenstones, a turbiditic gaywacke succession and a calc-alkaline granitoid suite) with undated siliciclast low-grade metasedimentary rocks. The Sao Francisco Craton (SFC) comprises pre-1.8 Ga basement rocks covered by anchimetamorphic Neoproterozoic carbonatic shallow marine platform deposits of the Bambui group. The Brasiliano thrust stacking generated a coarse clastic influx of molassic character on the foreland zone of Sao Francisco Craton, coeval with the exhumation of the External Domain thrust sheets. New K-Ar determinations on mineral separates are presented an interpreted among previous data. The SFC basement rocks display Paleo-to Meesoproterozoic cooling ages. The allochthonous units, in contrast, display K-Ar ages within the 560-675 Ma range. Brasiliano thrust stacking is therefore interpreted to have taken place onto a cold Sao Francisco craton foreland, in a thin-skinned style, as basement rocks were not heated enough to have their-K-ar systems reset during the allochthony. (author)

  17. Geochronology of granitic magmatism from Caraculo-Bibala region (SW Angola) and its correlation with Ribeira fold belt (SE Brazil)

    International Nuclear Information System (INIS)

    Carvalho, Heitor de; Tassinari, Colombo C.G.

    1992-01-01

    Rb-Sr whole-rock analyses of representative granitic rocks from the Bibala-Caraculo region, southwestern Angola, are used to determine the age and evolution of the acid plutonic events in this segment of the Angolan continental crust. The granitoids present a wide range of lithological types and compositions. Three time-intervals have been defined for the magmatism: 1,950 - 1,900 Ma; 1,750 - 1,700 Ma; 1,550 - 1,500 Ma. The oldest, though not very well defined, was obtained for the Chicalengue granitoid, the second one represents the Serra dos Gandarengos and Chonga granitoids and Luchipa-Pungue Granitic Complex and the youngest one comprises the Chicate and Caraculo granitic bodies and Numhino Granitic Complex. The initial 87 Sr/ 86 Sr ratios show characteristic values for each time-interval, as follows; 1,950 -1,900 Ma = 0,7015; 1,750 - 1,700 Ma = 0,7060 to 0,7075; 1,550 - 1,500 Ma 0,7048 - 0,7057, suggesting different sources for the granitoids within each geological period. In addition are presented two K-Ar ages for the basic rocks in SW Angola, with values of 1700 and 600 Ma, which represent a minimum ages for these rocks and are probably related to the Damara Orogeny. (author). 24 refs., 11 figs., 2 tabs

  18. Molecular and isotopic characterization of the particulate organic matter from an eutrophic coastal bay in SE Brazil

    Science.gov (United States)

    Kalas, Francine A.; Carreira, Renato S.; Macko, Stephen A.; Wagener, Angela L. R.

    2009-10-01

    The present work aimed at studying the origin of particulate organic matter in Guanabara Bay and in some rivers of the Guanabara basin by using elemental composition, isotopic ratios (δ13C and δ15N) and molecular markers (sterols) in samples collected in two periods (winter and summer). Elemental and isotopic compositions were determined by dry combustion and mass spectrometry, respectively, while sterols were investigated by GC-FID and GC-MS. Higher sterol concentrations were present in the north-western part of the bay in winter (5.10-23.5 μg L-1). The high abundance of algal sterols (26-57% of total sterols), the elemental composition (C/N=6-8) and the isotopic signatures (δ13C=-21.3‰ to -15.1‰ and δ15N=+7.3‰ to +11.1‰) suggested the predominance of autochthonous organic matter, as expected for an eutrophic bay, although seasonal variation in phytoplankton activity was observed. Coprostanol concentration (fecal sterol) was at least one order of magnitude higher in the particulate material from fluvial samples (4.65-55.98 μg L-1) than in the bay waters (<0.33 μg L-1). This could be ascribed to a combination of factors including efficient particle removal to sediments in the estuarine transition zone, dilution with bay water and bacterial degradation during particle transport in the water column.

  19. Effect of dietary sodium selenite, Se-enriched yeast and Se-enriched Chlorella on egg Se concentration, physical parameters of eggs and laying hen production

    Czech Academy of Sciences Publication Activity Database

    Skřivan, M.; Šimáně, J.; Dlouhá, G.; Doucha, Jiří

    2006-01-01

    Roč. 51, č. 4 (2006), s. 163-167 ISSN 1212-1819 Institutional research plan: CEZ:AV0Z50200510 Keywords : sodium selenite * se-yeast * se-chlorella Subject RIV: EE - Microbiology, Virology Impact factor: 0.421, year: 2006

  20. [Women and development in Brazil].

    Science.gov (United States)

    Cunha Neves, A

    1980-01-01

    This paper discusses the social, political and cultural status of women in Brazil. In 1976 only 29.6% of Brazilian women participated in economic activities; 54.3% of these were still employed as laborers in the countryside, while only 6% were employed in urban and industrial jobs. The greatest concentration of female labor is in the category of the very badly paid domestic employment. Man is traditionally the head of the family, even when he is not the breadwinner. Illiteracy has decreased in Brazil to 24.3%, but female analphabetism is 26.5% versus 21.9% male analphabetism. Schools are open to males and females at all levels, but the traditional and cultural structure of Brazilian society considers the home, not the school, as the only proper place for young girls, and maternity is still the primary social function of women. Politically Brazilian women have very little power, even if they make up 44% of the electoral body. Sex education does not exist in the school or in the home, and any sexuality exercised outside the bonds of marriage is considered as deviant.

  1. Nuclear research reactors in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Cota, Anna Paula Leite; Mesquita, Amir Zacarias, E-mail: aplc@cdtn.b, E-mail: amir@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2011-07-01

    The rising concerns about global warming and energy security have spurred a revival of interest in nuclear energy, giving birth to a 'nuclear power renaissance' in several countries in the world. Particularly in Brazil, in the recent years, the nuclear power renaissance can be seen in the actions that comprise its nuclear program, summarily the increase of the investments in nuclear research institutes and the government target to design and build the Brazilian Multipurpose research Reactor (BMR). In the last 50 years, Brazilian research reactors have been used for training, for producing radioisotopes to meet demands in industry and nuclear medicine, for miscellaneous irradiation services and for academic research. Moreover, the research reactors are used as laboratories to develop technologies in power reactors, which are evaluated today at around 450 worldwide. In this application, those reactors become more viable in relation to power reactors by the lowest cost, by the operation at low temperatures and, furthermore, by lower demand for nuclear fuel. In Brazil, four research reactors were installed: the IEA-R1 and the MB-01 reactors, both at the Instituto de Pesquisas Energeticas Nucleares (IPEN, Sao Paulo); the Argonauta, at the Instituto de Engenharia Nuclear (IEN, Rio de Janeiro) and the IPR-R1 TRIGA reactor, at the Centro de Desenvolvimento da Tecnologia Nuclear (CDTN, Belo Horizonte). The present paper intends to enumerate the characteristics of these reactors, their utilization and current academic research. Therefore, through this paper, we intend to collaborate on the BMR project. (author)

  2. Hospital pharmacy workforce in Brazil.

    Science.gov (United States)

    Santos, Thiago R; Penm, Jonathan; Baldoni, André O; Ayres, Lorena Rocha; Moles, Rebekah; Sanches, Cristina

    2018-01-04

    This study aims to describe the distribution of the hospital pharmacy workforce in Brazil. Data were acquired, during 2016, through the Brazilian National Database of Healthcare Facilities (CNES). The following variables were extracted: hospital name, registry number, telephone, e-mail, state, type of institution, subtype, management nature, ownership, presence of research/teaching activities, complexity level, number of hospital beds, presence of pharmacists, number of pharmacists, pharmacist specialization. All statistical analyses were performed by IBM SPSS v.19. The number of hospitals with a complete registry in the national database was 4790. The majority were general hospitals (77.9%), managed by municipalities (66.1%), under public administration (44.0%), had no research/teaching activities (90.5%), classified as medium complexity (71.6%), and had no pharmacist in their team (50.6%). Furthermore, almost 60.0% of hospitals did not comply with the minimum recommendations of having a pharmacist per 50 hospital beds. The Southeast region had the highest prevalence of pharmacists, with 64.4% of hospitals having a pharmaceutical professional. This may have occurred as this region had the highest population to hospital ratio. Non-profit hospitals were more likely to have pharmacists compared to those under public administration and private hospitals. This study mapped the hospital pharmacy workforce in Brazil, showing a higher prevalence of hospital pharmacists in the Southeast region, and in non-profit specialized hospitals.

  3. Nuclear research reactors in Brazil

    International Nuclear Information System (INIS)

    Cota, Anna Paula Leite; Mesquita, Amir Zacarias

    2011-01-01

    The rising concerns about global warming and energy security have spurred a revival of interest in nuclear energy, giving birth to a 'nuclear power renaissance' in several countries in the world. Particularly in Brazil, in the recent years, the nuclear power renaissance can be seen in the actions that comprise its nuclear program, summarily the increase of the investments in nuclear research institutes and the government target to design and build the Brazilian Multipurpose research Reactor (BMR). In the last 50 years, Brazilian research reactors have been used for training, for producing radioisotopes to meet demands in industry and nuclear medicine, for miscellaneous irradiation services and for academic research. Moreover, the research reactors are used as laboratories to develop technologies in power reactors, which are evaluated today at around 450 worldwide. In this application, those reactors become more viable in relation to power reactors by the lowest cost, by the operation at low temperatures and, furthermore, by lower demand for nuclear fuel. In Brazil, four research reactors were installed: the IEA-R1 and the MB-01 reactors, both at the Instituto de Pesquisas Energeticas Nucleares (IPEN, Sao Paulo); the Argonauta, at the Instituto de Engenharia Nuclear (IEN, Rio de Janeiro) and the IPR-R1 TRIGA reactor, at the Centro de Desenvolvimento da Tecnologia Nuclear (CDTN, Belo Horizonte). The present paper intends to enumerate the characteristics of these reactors, their utilization and current academic research. Therefore, through this paper, we intend to collaborate on the BMR project. (author)

  4. Counterfeiting of drugs in Brazil.

    Science.gov (United States)

    Ames, Joseane; Souza, Daniele Zago

    2012-02-01

    To identify the main counterfeit drugs seized by the Brazilian Federal Police and the states where seizures have been made. A retrospective descriptive study on expert reports produced by criminal investigators of the Federal Police between January 2007 and September 2010, in relation to counterfeit drugs, was carried out. The drugs with greatest numbers of seizures were selective phosphodiesterase-5 inhibitors that are used for treating male erectile dysfunction (Cialis® and Viagra®, mean = 66% ), followed by anabolic steroids (Durateston® and Hemogenin®: 8.9% and 5.7%, respectively). The greatest proportions of the counterfeit drugs were seized in the states of Paraná, Santa Catarina (both Southeastern Brazil) and São Paulo (Southeastern), and the number of non-authentic drugs sent for investigation increased by more than 200% over the study period. There were increases in seizures of smuggled drugs found together with counterfeit drugs: 67% of the seizures included at least one smuggled drug. Counterfeiting of drugs is a severe public health problem. Identification of the classes of counterfeit drugs present in Brazil and the main Brazilian states with this problem may facilitate future preventive and suppressive actions by the Brazilian bodies responsible for such actions.

  5. Rapidly developing market regions : Brazil

    International Nuclear Information System (INIS)

    Britto, A.

    1997-01-01

    Brazil and the State of Rio Grande do Sul are experiencing a period of rapid industrial development. Global investment has been forecast to reach $240 billion over the next five to seven years. This level of development is likely to result in a sharp increase in the consumption of plastic products made from olefins and from aromatic products. Accordingly, Copesul, the centre of raw materials for the State complex, is expected to increase its production of ethane from 685 tonnes to 1.13 million tonnes after 1999. The government has established a program of incentives to stimulate investment in third generation industries. Also, the State petrochemical industry has been rendered more competitive as a result of the purchase of the latest generation equipment. The principal challenges that exist for the petrochemical industry in Brazil and for that matter, around the world, are to reduce production costs and to preserve the natural environment. Another challenge, also world-wide, is to address the issue of plastic residues and to eliminate such residues through plastic recycling programs

  6. EPIDEMIOLOGIC SURVEYS OF HISTOPLASMIN AND PARACOCCIDIOIDIN SENSITIVITY IN BRAZIL

    Directory of Open Access Journals (Sweden)

    Sergio Di Camilo FAVA

    1998-05-01

    Full Text Available We report here the results obtained in epidemiologic surveys of histoplasmosis and paracoccidioidomycosis carried out in Brazil using the histoplasmin and paracoccidioidin delayed hypersensitivity skin tests. Most of these data have not been previously published in scientific journals and are now reported here in two tables respectively concerning histoplasmosis (88 surveys and paracoccidioidomycosis (58 surveys. The guidelines to be followed in surveys of this nature are also commented upon.Inquéritos epidemiológicos com histoplasmina e paracoccidioidina no Brasil Esta publicação visa a tornar acessíveis os resultados obtidos em inquéritos epidemiológicos sobre histoplasmose e paracoccidioidomicose, realizados no Brazil, através das reações intradérmicas de histoplasmina e paracoccidioidina. Ela justifica-se porque os resultados aqui relacionados, em grande parte, não foram publicados em revistas científicas. Os resultados que conseguimos colecionar são apresentados nas tabelas: 1 _ sobre histoplasmose e 2 _ sobre paracoccidioidomicose. Ao todo são relacionados 88 inquéritos sobre histoplasmose e 58 sobre paracoccidioidomicose. No final da publicação são feitos comentários sobre os ítens a serem obedecidos em inquéritos desta natureza.

  7. Brazil and the application of extended tension leg platform technology

    Energy Technology Data Exchange (ETDEWEB)

    Chianis, John W.; Jun Zou [ABB Floating Production Systems, Houston, TX (United States)

    2004-07-01

    Although there are several options for deep water development, the TLP has proven itself to be the system of choice for dry completion. This is demonstrated by its current worldwide application in the North Sea, Gulf of Mexico, West Africa and SE Asia. Future developments in Brazil are well suited to this Operator-friendly system. Also, due to the compact nature of its hull form, fabrication and integration of the system can be performed locally. TLPs represent a safe and proven solution for PETROBRAS in their quest to go deeper. As an introduction, this paper first addresses the basic principals of the TLP such as its superior motion characteristics and associated operational advantages, mooring system, hull form, and more. The paper will then present the more essential advancements in technology applied on the three most recent TLP projects including extension of water depth, high top tensioned riser counts, quay side integration, 'design one, build two', etc. Lastly and most importantly, other technology developments pertinent to near-term applications in Brazil are presented. (author)

  8. PbSe Quantum Well VECSEL on Si

    Science.gov (United States)

    Fill, M.; Khiar, A.; Rahim, M.; Felder, F.; Zogg, H.

    2011-12-01

    Vertical external cavity surface emitting lasers in the wavelength region from 3-5 μm are presented. They are based on PbSe quantum wells grown on Si substrates. As host material Pb1-xEuxSe and Pb1-xSrxSe are used. With Pb1-xSrxSe as host material maximum operation temperatures of 325 K are achieved, while with Pb1-xEuxSe an operation temperature of 245 K could not be overcome. This may be explained by a band alignment transition from type I to type II with increasing temperature.

  9. ARPES study on Bi2Se3 and BiSbTe1.25Se1.75

    Science.gov (United States)

    Lohani, H.; Mishra, P.; Majhi, K.; Banerjee, A.; Yadav, A. K.; Ganesan, R.; Kumar, P. S. Anil; Sekhar, B. R.

    2017-05-01

    We present a comparative angle resolved photoelectron spectroscopy (ARPES) study on Bi2Se3 and BiSbTe1.25Se1.75. Dirac like surface state bands (SSB) and effects of band bending (BB) are observed in both the compounds. The BB effects are more pronounced in BiSbTe1.25Se1.75 in comparison to Bi2Se3.

  10. Atomic resolution monitoring of cation exchange in CdSe-PbSe heteronanocrystals during epitaxial solid-solid-vapor growth

    NARCIS (Netherlands)

    Yalcin, Anil O.; Fan, Zhaochuan; Goris, Bart; Li, Wun Fan; Koster, Rik S.; Fang, Changming; Van Blaaderen, Alfons; Casavola, Marianna; Tichelaar, Frans D.; Bals, Sara; Van Tendeloo, Gustaaf; Vlugt, Thijs J H; Vanmaekelbergh, Daniël; Zandbergen, Henny W.; Van Huis, Marijn A.

    2014-01-01

    Here, we show a novel solid-solid-vapor (SSV) growth mechanism whereby epitaxial growth of heterogeneous semiconductor nanowires takes place by evaporation-induced cation exchange. During heating of PbSe-CdSe nanodumbbells inside a transmission electron microscope (TEM), we observed that PbSe

  11. Atomic Resolution Monitoring of Cation Exchange in CdSe-PbSe Heteronanocrystals during Epitaxial Solid?Solid?Vapor Growth

    NARCIS (Netherlands)

    Yalcin, A.O.; Fan, Z.; Goris, B.; Li, W.F.; Koster, R.S.; Fang, C.M.; Van Blaaderen, A.; Casavola, M.; Tichelaar, F.D.; Bals, S.; Van Tendeloo, G.; Vlugt, T.J.H.; Vanmaekelbergh, D.; Zandbergen, H.W.; Van Huis, M.A.

    2014-01-01

    Here, we show a novel solid?solid?vapor (SSV) growth mechanism whereby epitaxial growth of heterogeneous semiconductor nanowires takes place by evaporation-induced cation exchange. During heating of PbSe-CdSe nanodumbbells inside a transmission electron microscope (TEM), we observed that PbSe

  12. Brazil in the global energy world

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Frank D.; Vossoughi, Shapour [University of Kansas (KU), KS (United States)

    2012-07-01

    Brazil is the 10th largest energy consumer in the world and the third largest in the Western Hemisphere, behind the United States and Canada. Total primary energy consumption in Brazil has increased significantly in recent years; and over the past decade, Brazil has made great strides in increasing its total energy production, particularly oil. Brazil has the second-largest crude oil reserves in South America (behind Venezuela), and is one of the fastest growing oil producers in the world. According to United States Energy Information Administration (EIA), Brazil had 12.2 billion barrels of proven oil reserves in 2008. In 2007, Brazil's state owned Petroleo Brasileiro S.A. (PETROBRAS) announced that it had discovered an estimated 5-8 billion barrels of recoverable reserves (including both oil and natural gas) in the Tupi field, located in the Santos Basin. In 2008, subsequent discoveries were announced, to include Jupiter and Carioca (aka Sugar Loaf). Although PETROBRAS has yet to confirm the size of the discoveries, some industry analysts estimate the total extent of recoverable oil and natural gas reserves in the entire pre-salt layer have approached 40 to 80 billion barrels of oil equivalent. The reserves occur below a salt zone that is estimated to be 7,000 meters below the ocean surface. However, Brazil faces many challenges to recover the hydrocarbons to include technical, political, fiscal, and infrastructure hurdles. In spite of the challenges ahead, these discoveries transformed the nature and focus of Brazil's oil industry, economy, and future; and the potential impact of the pre-salt discoveries upon world oil markets is vast. The purpose of this paper is to discuss how the recent discoveries will affect Brazil's future and the impact it will have on the global energy world. (author)

  13. Analysis of medicinal plant extracts by neutron activation method; Analise de extratos de plantas medicinais pelo metodo de ativacao com neutrons

    Energy Technology Data Exchange (ETDEWEB)

    Vaz, Sandra Muntz

    1995-12-31

    This dissertation has presented the results from analysis of medicinal plant extracts using neutron activation method. Instrumental neutron activation analysis was applied to the determination of the elements Al, Br, Ca, Ce, Cl, Cr, Cs, Fe, K, La, Mg, Mn, Na, Rb, Sb, Sc and Zn in medicinal extracts obtained from Achyrolcline satureoides DC, Casearia sylvestris, Centella asiatica, Citrus aurantium L., Solano lycocarpum, Solidago microglossa, Stryphnondedron barbatiman and Zingiber officinale R. plants. The elements Hg and Se were determined using radiochemical separation by means of retention of Se in HMD inorganic exchanger and solvent extraction of Hg by bismuth diethyl-dithiocarbamate solution. Precision and accuracy of the results have been evaluated by analysing reference materials. The therapeutic action of some elements found in plant extracts analyzed was briefly discussed 70 refs., 13 figs., 15 tabs

  14. Resonant tunneling transport in ZnxBe1-xSe/ZnSe/ZnyBe1-ySe asymmetric quantum structures

    Science.gov (United States)

    Sirkeli, Vadim P.; Yilmazoglu, Oktay; Al-Daffaie, Shihab; Oprea, Ion; Ong, Duu Sheng; Küppers, Franko; Hartnagel, Hans L.

    2017-05-01

    II-VI compounds are promising materials for the fabrication of room-temperature terahertz devices due to their beneficial properties like as type-I conduction band alignment, high breakdown field strength ( 331 kV/cm for ZnSe vs. 80 kV/cm for GaAs), and higher values of the conduction band offset (1.5 eV for BeSe/ZnSe vs. 0.7 eV for AlAs/GaAs). In this paper we report on numerical study of the resonant tunneling transport in ZnBeSe/ZnSe/ZnBeSe symmetric and asymmetric resonant tunneling diodes (RTDs). The negative differential resistance feature is observed in the current-voltage characteristics of the ZnSe-based RTDs. It is found that the maximum of peak-to-valley ratio (PVR) of the current density is equal to 6.025 and 7.144 at 150 K, and to 1.120 and 1.105 at 300 K for the symmetric and asymmetric RTDs, respectively. The effect of barrier heights on the frequency and output power performance of RTD devices are studied and discussed.

  15. Investigation of biocompatible and protein sensitive highly luminescent quantum dots/nanocrystals of CdSe, CdSe/ZnS and CdSe/CdS

    Science.gov (United States)

    Ratnesh, R. K.; Mehata, Mohan Singh

    2017-05-01

    The size and shape dependent semiconductor quantum dots (0D nanoparticles) with color tunability demonstrating significant influence in a biological system and considered as ideal probes. Here, a non-coordinated colloidal approach was used for the synthesis of CdSe, CdSe/ZnS and CdSe/CdS core-shell quantum dots (QDs) of 3-4 nm. The synthesized nanocrystals show a high crystallinity, examined by X-ray diffraction (XRD) and high-resolution electron microscopy (HRTEM). The core-shell semiconductor QDs exhibit stronger photoluminescence (PL) as compared to the core QDs. The strong PL with small full-width half maximum (FWHM) indicates that the prepared QDs have a nearly uniform size distribution and well dispersibility. The quantum yield (QY) of core-shell QDs increases due to the surface passivation. Further, the PL of BSA is quenched strongly by the presence of core-shell QDs and follows the well-known Stern-Volmer (S-V) relation, whereas the PL lifetime does not follow the S-V relation, demonstrating that the observed quenching is predominantly static in nature. Among CdSe core, CdSe/ZnS and CdSe/CdS core-shell QDs, the CdSe/ZnS QDs shows the least cytotoxicity and most biocompatibility. Thus, the prepared core-shell QDs are biocompatible and exhibit strong sensing ability.

  16. Complexing in (NH4)2SeO4-UO2SeO4 H2O system

    International Nuclear Information System (INIS)

    Serezhkina, L.B.

    1994-01-01

    Isotherm of solubility in the (NH 4 ) 2 SeO 4 -UO 2 SeO 4 -H 2 O system has been constructed at 25 deg C. (NH 4 ) 2 (UO 2 ) 2 (SeO 4 ) 3 x6H 2 O formation is established for the first time and certain its physicochemical properties are determined. Regularities of complexing in the R 2 Se) 4 -UO 2 SeO 4 -H 2 O systems, where R-univalent cation are under discussion. 6 refs.; 3 tabs

  17. Biomass briquetting and its perspectives in Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Felfli, Felix Fonseca; Mesa P, Juan M. [BIOWARE Ltda., Caixa Postal 6086, 13083-970, Campinas, SP (Brazil); Rocha, Jose Dilcio [EMBRAPA-Agroenergia, Brasilia, DF (Brazil); Filippetto, Daniele; Luengo, Carlos A.; Pippo, Walfrido Alonso [Grupo Combustiveis Alternativos/Departamento de Fisica Aplicada/IFGW/UNICAMP, Caixa Postal 6165, Barao Geraldo 13083-970, Campinas, SP (Brazil)

    2011-01-15

    A study of the status of biomass briquetting and its perspectives in Brazil was conducted including determination of the availability and characteristics of the agro-residues for briquetting. Wood residues, rice husk and coffee husk were characterized and identified as the more promising agro-residues for briquetting in the short-term in Brazil. A survey was carried out in order to determine the number of briquetting factories in Brazil, and also to determine: used briquetting technologies, briquettes production, briquettes sale prices, the status of biomass briquetting market and its future perspectives. (author)

  18. Aspergillus bertholletius sp. nov. from Brazil Nuts

    DEFF Research Database (Denmark)

    Taniwaki, Marta H.; Pitt, John I.; Iamanaka, Beatriz T.

    2012-01-01

    During a study on the mycobiota of brazil nuts (Bertholletia excelsa) in Brazil, a new Aspergillus species, A. bertholletius, was found, and is described here. A polyphasic approach was applied using morphological characters, extrolite data as well as partial beta-tubulin, calmodulin and ITS...... sequences to characterize this taxon. A. bertholletius is represented by nineteen isolates from samples of brazil nuts at various stages of production and soil close to Bertholletia excelsa trees. The following extrolites were produced by this species: aflavinin, cyclopiazonic acid, kojic acid, tenuazonic...

  19. Die 2004 senior Harmony Suid-Afrikaanse Wiskunde- olimpiade: ’n Analise van die resultate van die senior groep, tweede ronde

    Directory of Open Access Journals (Sweden)

    J. G. Maree

    2004-09-01

    Full Text Available Suid-Afrikaanse leerders se ontoereikende wiskundeprestasie is ’n bron van kommer vir elkeen wat betrokke is by leerfasilitering i wiskunde. Belanghebbendes soek ernstig na moontlike wyses waarop leerders se insig rakende en prestasie in wiskunde verbeter ka word ten einde leerders toe te rus met wiskundige vaardighede en hulle op hierdie wyse te help om ’n beter kans te hê op lewensukse In hierdie verband word wiskunde-olimpiades wêreldwyd beskou as ’n uitnemende meganisme, enersyds om talentvolle leerders identifiseer en leerders se probleemoplossingsvaardighede in wiskunde te verbeter, en andersyds om leerders voor te berei op wiskundig studierigtings in die algemeen. In hierdie artikel word enkele aspekte van die pas afgelope Harmony Suid-Afrikaanse Wiskunde olimpiade ontleed en enkele aanbevelings gemaak. ’n Belangrike gevolgtrekking wat gemaak word, is dat die Harmony Suid-Afrikaans Wiskunde-olimpiade in ’n groot mate in sy doel slaag, maar nie naastenby soveel leerders en opvoeders bereik as waarop ’n mens so wou hoop nie. Die ideale van die Harmony Suid-Afrikaanse Wiskunde-olimpiade kan waarskynlik slegs bereik word indien alle sko van toereikende fasiliteite voorsien word en die standaard van wiskundeonderrig op nasionale vlak terselfdertyd toepaslik verbete word. Spoedige en indringende gesprek en herbesinning deur alle betrokke partye is daarom dringend noodsaaklik.

  20. Comparative QRA (Quantitative Risk Analysis) of natural gas distribution pipelines in urban areas; Analise comparativa dos riscos da operacao de linhas de gas natural em areas urbanas

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Luiz Fernando S. de [Energy Solutions South America (Brazil); Cardoso, Cassia de O.; Storch, Rafael [Det Norske Veritas (DNV) (Brazil)

    2008-07-01

    The natural gas pipeline network grows around the world, but its operation inherently imposes a risk to the people living next to pipelines. Due to this, it is necessary to conduct a risk analysis during the environmental licensing in Brazil. Despite the risk analysis methodology is well established, some points of its application for the distribution pipelines are still under discussion. This paper presents a methodology that examines the influences of major projects and operating parameters on the risk calculation of a distribution pipeline accident in urban areas as well as the possible accident scenarios assessment complexity. The impact of some scenarios has been evaluated using a Computational Fluid Dynamics tool. The results indicate that, under certain conditions, the risks from the pipeline operation under operating pressures of 20 bar may be acceptable in location class 3 or even in class 4. These results play a very important role if management decisions on the growth of the distribution of natural gas network in densely populated areas as well as in the improvement of laws to control the activity of distribution of natural gas. (author)

  1. Analysis of the sum kriging and the kriging sum - a case study; Analise do problema da krigagem da soma e da soma das krigagens - estudo de caso

    Energy Technology Data Exchange (ETDEWEB)

    D' Abbadia, Martinho Romulo Iria

    1999-02-01

    This work presents some thicknesses estimates in overlapped sedimentary sections. The adopted procedure consists of the accomplishment of kriging followed by weighed corrections that provide mathematical consistency to the operation of thicknesses addition. These weighed corrections are based on the proportions between: the thicknesses of the estimated layers and the total thickness of the analyzed section; the standard deviation of the estimation error and the addition of these standard deviations; the variance of the estimation error and the addition of these variances. The proposed method is characterized by its simplicity and operational flexibility, being distinguished by: the number of intervals to be analyzed is theoretically limitless; stationary thicknesses are not required; choice of distinct neighborhoods for each analyzed interval is allowed; it has freedom for the use of distinct models in each investigated interval, making it possible to choose different functions, amplitudes and anisotropies. The technique was applied in an oil field situated in the northeast of Brazil, helping in localising the preferential depositional areas for turbiditic reservoirs and allowing inferences with respect to structural aspects of studied area. (author)

  2. Social and economic vulnerability indicators for oil exporting countries: methodology and comparison analysis; Indicadores de vulnerabilidade socioeconomica para paises exportadores de petroleo: metodologia e analise comparativa

    Energy Technology Data Exchange (ETDEWEB)

    Jesus, Fernanda Delgado de

    2009-04-15

    The oil exporting countries can be vulnerable to this row-material as the oil importing ones, due to their social economic dependence of the revenues generated by the oil and gas sector. So, it is also important for those countries the analysis of their social economic vulnerability in order to contribute for the comprehension of their real actions related to their production strategies, aiming to affect oil price and market-share. Due to that, this thesis proposes a methodology based on social economic indicators of oil exporting countries, which will enclose the following aspects: physical, productive, commercial, macro economic, fiscal and social. These indicators will be applied to the OPEC members, Norway and Mexico, and orientated through a normalized scale as in a multicriteria methodology (AHP - Analytic Hierarchy Process). The analyzed results will drive the social economic implications, and the studied countries will be classified in a scale that goes from very favorable to very unfavorable. The results point the main social economic fragilities of the oil exporting countries, designing pathways to Brazil and their possible exporting ambitions. The most important considerations that became from the vulnerable oil export countries experiences refers to the necessity to straight and increases their macro economic foundations, industrial diversification incentives and the creation of an stabilization fund (based on oil revenues) for the future generations, or to severe oil prices oscillations periods in the international market (author)

  3. Analysis of implementation of energy efficiency labeling of buildings in hotel developments; Analise da aplicacao da etiquetagem de eficiencia energetica de edificacoes em empreendimentos hoteleiros

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Myrthes Marcele Farias dos; Faria, Ricardo Wargas de; Hamada, Luciana; Nascimento, Paulo Roberto Lopes do [Servico Brasileiro de Apoio as Micro e Pequenas Empresas (SEBRAE), Rio de Janeiro, RJ (Brazil). Programa de Energia e Eficiencia Energetica

    2010-07-01

    Most Brazilian constructions have low performance in terms of energy, since they received little attention (or none) concerning the energy efficiency. One of the main aspects observed is the intense use of electric energy for climatization and lighting in order to provide comfortable conditions for the dwellers. In 2009, new perspectives to change this situation emerged, due to an initiative by the Federal Government, that established the necessary regulations for energy efficiency labelling in buildings, and broadened the Brazilian Labelling Program (PBE), which, up until then, encompassed only machinery and equipment. The purpose of this article is to analyze the compliance with the new regulations for energy efficiency of constructions in the hotel sector, where small businesses are predominant, aiming at highlighting the barriers and opportunities connected to the possibilities of labeling. Hotels have been targeted for large investments, since they have become the pillars of Brazil's project to welcome tourists during the 2014 World Cup and the 2016 Olympic Games. Taking into consideration the need to develop specific methodologies for lodging possibilities, in addition to the scarce information on the use of energy in small businesses, this article is part of a series of researches carried out within the framework of the Sebrae/RJ - Procel Agreement. The outcome is a global analysis, from a business point of view, on the use of labels of energy efficiency in hotel buildings, organized upon two perspectives: the external environment (opportunities and threats) and the internal environment (strong and weak points). (author)

  4. Risk analysis applied to development of a gas field in Santos Basin; Analise de risco aplicada ao desenvolvimento de um campo de gas na Bacia de Santos

    Energy Technology Data Exchange (ETDEWEB)

    Xavier, Alexandre M.; Filoco, Paulo R.; Yamada, Debora T. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2008-07-01

    Decision analysis applied to the development phase of petroleum fields must take into account the risk associated to many kinds of uncertainties. In the transition of the appraisal to the development phases, the importance of risk associated to the production and the recovery factor may increase significantly. The process is complex due to high investments, large number of uncertain variables and strong dependence of the results with the production strategy definition. In E and P, several decisions must be taken considering the risks involved through the appraisal of the uncertainties impact in production of petroleum fields, increase the possibility of success, measuring possible lost and sub-optimized developments identifying new opportunities. In a specific scenario, like gas production, the risk associated to the project becomes larger due to the gas prices compared to oil, the demand, the distribution's structure and the deadlines defined in contracts. The objective of this paper is to show the results of a methodology developed in a detailed study of a risk analysis process in appraisal and development phases (execution and implementation) to one of the biggest gas fields in Brazil (Mexilhao Field) and support reliable future decisions. (author)

  5. Inspection of the brazilian nuclear regulatory body in the area of radiotherapy. A critical analysis; Inspecao do orgao regulador nuclear brasileiro na area de radioterapia. Uma analise critica

    Energy Technology Data Exchange (ETDEWEB)

    Brito, Ricardo Roberto de Azevedo

    2005-07-01

    The National Commission of Nuclear Energy (CNEN) is responsible in Brazil for the activities of licensing and control of radioactive installations in the radiotherapy medical area. The majority of these activities are developed by CNEN Co-ordination of Radioactive Installations (CORAD). One of the necessary stages for the development of licensing and control activities is the inspection of radiotherapy services (clinics and hospitals). Almost all of these inspections are carried out by CNEN Inst. of Radiation Protection and Dosimetry (IRD), through its Service of Medical Physics in Radiotherapy and Nuclear Medicine (SEFME). This work makes a survey of the main nonconformities found during ten years of inspections in radiotherapy services (1995 - 2004) and analyses the efficiency of these inspections in making the radiotherapy services develop their activities according to the norms in vigour in the country and adopt corrective actions against, at least, the nonconformities evidenced by CNEN inspectors. Additionally, it analyses the possibility of improvement and / or the optimisation of the process, through a procedure able to be unified and controlled, aiming a prompt communication to those involved in the licensing process (SEFME and CORAD) about the attendance by the radiotherapy services to the non-conformity items observed during the inspection. (author)

  6. A water heating system analysis for rural residences, using solar energy; Analise de um sistema de aquecimento de agua para residencias rurais, utilizando energia solar

    Energy Technology Data Exchange (ETDEWEB)

    Basso, Luiz H.; Souza, Samuel N.M. de; Siqueira, Jair A.C.; Nogueira, Carlos E.C.; Santos, Reginaldo F. [Universidade Estadual do Oeste do Parana (UNIOESTE), Cascavel, PR (Brazil). Programa de Pos-Graduacao em Engenharia Agricola], emails: melegsouza@yahoo.com, ssouza@unioeste.br, jairsiqueira@unioeste.br, cecn1@yahoo.com.br, rfsantos@unioeste.br

    2010-01-15

    The awareness of the importance of the environment has stimulated the study of new renewed energy sources and less pollutant. Amongst these sources, solar energy stands alone for being perennial and clean. The use of solar energy in systems of agricultural residential water heating, can complement the economy of electric energy, base of the Brazilian energy matrix. Knowing the factors that influence the operation of a system of water heating by solar energy is important in determining their technical viabilities targeting their distribution in agricultural residences. To evaluate equipment of water heating for solar energy, a prototype was constructed in the campus of Assis Gurgacz College, in Cascavel,State of Parana, Brazil, with similar characteristics to equipment used in residences for two inhabitants, to function with natural circulation or thermo siphon and without help of a complementary heating system. The equipment revealed technical viability, reaching the minimum temperature for shower, of 35 deg C, whenever the solar radiation was above the 3,500 Wh m{sup -2}, for the majority of the studied days. (author)

  7. The evolution of legal aspects on the Brazilian electric power sector, a critical analysis; Evolucao dos marcos regulatorios do mercado de energia eletrica no Brasil, uma analise critica

    Energy Technology Data Exchange (ETDEWEB)

    Bastos, Adriano Silva

    2007-07-01

    The electric sector went through deep changes along these 125 years of electrification of the country, mainly the alternation of their investment bases, hour being private for the most part, state hour. The legal bases of concession and regulation also varied in this period, trying to adapt to the effective model of the time. This work intends to analyze the evolution of the regulatory models of the electric sector, identifying the main changes of paradigms and to compare the efficiency of the models already implanted in the segment, with views to the increment of the offer of energy in the period, molding a critical profile of the best model already adopted in the national electric sector. To compare qualitatively these models requests an analysis of the investment bases a priori in the sector, identifying the contribution of resources has been private or state, following by the government's legal positioning in the sense of being only regulator, or regulator and investor, concluding with an analysis of the electric power offer in the period and the power of self-financing of the companies, in order to assent that the mixed model is the most appropriate model for the sustainable growth of the electric power generation sector in Brazil. (author)

  8. Energetic analysis of experimental process in bio diesel production from chicken oil; Analise energetica do proceso experimental de producao de biodiesel a partir de oleo de frango

    Energy Technology Data Exchange (ETDEWEB)

    Bonometo, Ricardo Pacheco [Universidade Estadual Paulista (FCA/UNESP), Botucatu, SP (Brazil). Fac. de Ciencias Agronomicas. Programa de Pos-Graduacao em Energia na Agricultura], E-mail: rpbonometo@yahoo.com.br; Justi, Andre Luiz [Universidade Estadual Paulista (FCA/UNESP), Botucatu, SP (Brazil). Fac. de Ciencias Agronomicas. Programa de Pos-Graduacao em Irrigacao e Drenagem], E-mail: aljusti@fca.unesp.br; Buchi, Alisson Teixeira [Universidade Estadual Paulista (CEVAP/UNESP), Botucatu, SP (Brazil). Centro de Estudos de Venenos e Animais Peconhentos], E-mail: atbuchi@yahoo.com.br; Saglietti, Jose Roberto [Universidade Estadual Paulista (FCA/UNESP), Botucatu, SP (Brazil). Fac. de Ciencias Agronomicas. Dept. de Fisica e Biofisica], E-mail: jroberto@ibb.unesp.br

    2010-07-01

    There is a great global concern about the depletion and the high cost of fossil fuel reserves exploitation, more than ever, it is necessary to make a profound study and take advantage of alternative sources that can be used as energy efficiency with an appropriate pricing and low environmental impact. Brazil, which has highlighted using alternative energy sources as the use of ethanol and, in recent years, has been encouraging the expansion of its energy matrix in which the biodiesel will have a strategic importance within the agrobusiness area. Biodiesel is a fuel that can replace the diesel, which is a petroleum derivative. It is an ester, produced in the transesterification reaction of vegetable oils and animal greases, in an alcohol with an additional catalyst, are converted into fatty acids and result in esters with glycerol as sub products. The objective of this study was to estimate the final energy balance for the process biodiesel production from oil chicken waste. The energy balance estimation was quantified in calorific value according to the energy expenditure by calorimetric bomb method. The relationship between input and output of energy was around 0.97. In a first evaluation, the procedures adopted should be improved enough, so the process can become energetic and economically viable. (author)

  9. Application of activation analysis for determination of some elements in cassiterite samples; Aplicacao da analise por ativacao para a determinacao de alguns elementos em amostras de cassiterita

    Energy Technology Data Exchange (ETDEWEB)

    Armelin, Maria Jose Aguirre

    1978-07-01

    This work consists in the development of an analytical method using activation by thermal neutrons for the determination of some minor elements and traces present in cassiterite (tin ore). This method was then applied to determine these elements in samples of cassiterite from different regions of Brazil. An analysis was made of the mineralogy characteristic of cassiterite as well as of the minerals most commonly associated with it. Four main types of interference were found to occur in the analysis by activation of trace elements in samples of cassiterite. The method involves the analysis without chemical separation for the determination of some elements and the analysis with chemical separation for the determination of other elements. The steps involved in both types of analysis are described. In the analysis with chemical separation the matrix element (tin) is separated by distillation in an H{sub 2}SO{sub 4}-HBr medium, after fusion of the ore with Na{sub 2}O{sub 2}. Arsine and antimony are determined in the distilled, whereas some lanthanide elements and uranium are determined in the distillation residue by separating them as a group by precipitation with lanthanum fluoride. A discussion on the precision, accuracy and sensibility of the method is also included. (author)

  10. Availability analysis of the nuclear instrumentation of a research reactor; Analise da disponibilidade da instrumentacao nuclear de um reator de pesquisa

    Energy Technology Data Exchange (ETDEWEB)

    Vianna Filho, Alfredo Marques

    2016-07-01

    The maintenance of systems and equipment is a central question related to Production Engineering. Although systems are not fully reliable, it is often necessary to minimize the failure occurrence likelihood. The failures occurrences can have disastrous consequences during a plane flight or operation of a nuclear power plant. The elaboration of a maintenance plan has as objective the prevention and recovery from system failures, increasing reliability and reducing the cost of unplanned shutdowns. It is also important to consider the issues related to organizations safety, especially those dealing with dangerous technologies. The objective of this thesis is to propose a method for maintenance analysis of a nuclear research reactor, using a socio-technical approach, and focused on existing conditions in Brazil. The research reactor studied belongs to the federal government and it is located in the city of Rio de Janeiro. The specific objective of this thesis is to develop the availability analysis of one of the principal systems of the research reactor, the nuclear instrumentation system. In this analysis, were taken into account not only the technical aspects of the modules related to nuclear instrumentation system, but also the human and organizational factors that could affect the availability of the nuclear instrumentation system. The results showed the influence of these factors on the availability of the nuclear instrumentation system. (author)

  11. Timely resolved measurements on CdSe nanoparticles; Zeitaufgeloeste Messungen an CdSe Nanopartikeln

    Energy Technology Data Exchange (ETDEWEB)

    Holt, B.E. von

    2006-06-06

    By means of infrared spectroscopy the influence of the organic cover on structure and dynamics of CdSe nanoparticles was studied. First a procedure was developed, which allows to get from the static infrared spectrum informations on the quality of the organic cover and the binding behaviour of the ligands. On qualitatively high-grade and well characterized samples thereafter the dynamics of the lowest-energy electron level 1S{sub e} was time-resolvedly meausred in thew visible range. As reference served CdSe TOPO, which was supplemented by samples with the ligands octanthiole, octanic acid, octylamine, naphthoquinone, benzoquinone, and pyridine. The studied nanoparticles had a diameter of 4.86 nm. By means of the excitation-scanning or pump=probe procedure first measurements in the picosecond range were performed. The excitation wavelengths were thereby spectrally confined and so chosen that selectively the transitions 1S{sub 3/2}-1S-e and 1P{sub 3/2}-1P{sub e} but not the intermediately lyingt transition 2S{sub 3/2}-1S{sub e} were excited. The excitation energies were kept so low that the excitation of several excitons in one crystal could be avoided. The scanning wavelength in the infrared corresponded to the energy difference between the electron levels 1S{sub e} and 1P{sub e}. The transients in the picosecond range are marked by a steep increasement of the signal, on which a multi-exponential decay follows. The increasement, which reproduces the popiulation of the excited state, isa inependent on the choice of the ligands. The influence of the organic cover is first visible in the different decay times of the excited electron levels. the decay of the measurement signal of CdSe TOPO can be approximatively described by three time constants: a decay constant in the early picosecond region, a time constant around hundert picoseconds, and a time constant of some nanoseconds. At increasing scanning wavelength the decay constants become longer. By directed excitation

  12. SeP, ApoER2 and megalin as necessary factors to maintain Se homeostasis in mammals.

    Science.gov (United States)

    Krol, Magdalena Beata; Gromadzinska, Jolanta; Wasowicz, Wojciech

    2012-10-01

    Selenoprotein P (SeP) is an extracellular protein containing ten selenium atoms in the form of selenocysteine, secreted mainly from the liver. About 60% of the whole plasma selenium level is present in SeP, which makes it a useful biomarker of selenium nutritional status. The main functions of SeP are transport and storage of selenium in plasma. It is especially an important protein for the brain, testes and kidneys where the supplementation of the proper amount of Se ensures the synthesis of selenoenzymes with antioxidant properties.Recently, it has been found that SeP uptake in kidneys, testes and brain depends on the apolipoprotein receptor 2 (ApoER2) and lipoprotein megalin receptor (Lrp2). Megalin receptor represents a physiological SeP receptor in kidneys, mediating the re-uptake of secreted SeP from the primary urine. The absence of a functional megalin receptor causes a significant reduction of plasma selenium and the SeP levels as a result of Se excretion. ApoER2 is a SeP receptor in the brain and testes which uptakes Se from the extracellular fluid. Deletion of ApoER2 in mice leads to a lowered selenium level in the brain and testes, neurological dysfunction, production of abnormal spermatozoa, infertility and even death when the subjects are fed a low-selenium diet. Copyright © 2012 Elsevier GmbH. All rights reserved.

  13. Absorption and initial metabolism of 75Se-l-selenomethionine

    DEFF Research Database (Denmark)

    Grosse Ruse, Mareile; Søndergaard, Lasse R.; Ditlevsen, Susanne

    2015-01-01

    Selenomethionine (SeMet) is an important organic nutritional source of Se, but the uptake and metabolism of SeMet are poorly characterised in humans. Dynamic gamma camera images of the abdominal region were acquired from eight healthy young men after the ingestion of radioactive 75Se-l-SeMet (75S...... variables for quantifying reduced intestinal absorption capacity or liver function.......-SeMet). Scanning started simultaneously to the ingestion of 75Se-SeMet and lasted 120 min. We generated time-activity curves from two-dimensional regions of interest in the stomach, small intestine and liver. During scanning, blood samples were collected at 10-min intervals to generate plasma time-activity curves....... A four-compartment model, augmented with a delay between the liver and plasma, was fitted to individual participants’ data. The mean rate constant for 75Se-SeMet transport was 2·63 h–1 from the stomach to the small intestine, 13·2 h–1 from the small intestine to the liver, 0·261 h–1 from the liver...

  14. Synthesis of CdSe Quantum Dots Using Fusarium oxysporum

    Directory of Open Access Journals (Sweden)

    Takaaki Yamaguchi

    2016-10-01

    Full Text Available CdSe quantum dots are often used in industry as fluorescent materials. In this study, CdSe quantum dots were synthesized using Fusarium oxysporum. The cadmium and selenium concentration, pH, and temperature for the culture of F. oxysporum (Fusarium oxysporum were optimized for the synthesis, and the CdSe quantum dots obtained from the mycelial cells of F. oxysporum were observed by transmission electron microscopy. Ultra-thin sections of F. oxysporum showed that the CdSe quantum dots were precipitated in the intracellular space, indicating that cadmium and selenium ions were incorporated into the cell and that the quantum dots were synthesized with intracellular metabolites. To reveal differences in F. oxysporum metabolism, cell extracts of F. oxysporum, before and after CdSe synthesis, were compared using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE. The results suggested that the amount of superoxide dismutase (SOD decreased after CdSe synthesis. Fluorescence microscopy revealed that cytoplasmic superoxide increased significantly after CdSe synthesis. The accumulation of superoxide may increase the expression of various metabolites that play a role in reducing Se4+ to Se2− and inhibit the aggregation of CdSe to make nanoparticles.

  15. Synthesis of dextran/Se nanocomposites for nanomedicine application

    International Nuclear Information System (INIS)

    Shen Yuhua; Wang Xiufang; Xie Anjian; Huang Lachun; Zhu Jinmiao; Chen Long

    2008-01-01

    In this study, spherical Se nanoparticles were prepared by the reduction of aqueous selenious acid with ice bath through a simple, conventional, and one-step method without the aid of any surfactant, or template. The nanoparticles were characterized by transmission electron microscopy (TEM), photon correlation spectroscopy (PCS), X-ray powder diffraction (XRD), Ultraviolet-visible spectroscopy (UV-vis), Zeta potential, respectively. The results show the Se nanoparticles have good particle dispersion with the average diameters of 36 nm and are amorphous (α-Se). Tablets A and B containing dextran and Se nanoparticles were synthesized with different preparation methods. Se nanoparticles studded equably in the interior and the surface of the tablets, and there are strong interactions between Se and dextran. The release of Se from tablets is investigated in the simulated gastric and intestinal conditions. It is found that the pH environment and different synthetical methods have significant influence on the release rate of Se. The release mechanism of Se nanoparticles is also discussed. The nanocomposites can be applied in controlled releasing of Se nanomedicine

  16. Brazil in Regional and Global Governance: Foreign Policy, Leadership and UNASUR

    Directory of Open Access Journals (Sweden)

    Gregory Chin

    2016-09-01

    Full Text Available This article examines the role of Brazil as a source of international governance innovation during the Lula da Silva and early Rousseff presidencies (2003–12. The analysis details some of Brazil’s main contributions to regional and global governance, and how these contributions are rooted in ideational and normative innovation and its imaginative, nonconformist, status quo–altering foreign policy of the period. Although Brazil was not, and is not, a “new actor” per se in global governance, it did take unprecedented and dramatic strides between 2003 and 2012 to redefine the multilateral agenda and reshape institutional arrangements for international cooperation and conflict management in South America. At the global level, Brazil launched new platforms for international cooperation, including with the other BRICS countries of Russia, India, China and South Africa. The regional trends are examined in the case of the Union of South American Nations (UNASUR, and the innovations that Brazil spearheaded and supported in international security and health cooperation. However, Brazil’s contributions gain greater salience as part of the broader processes of global change where international power is becoming increasingly diffused and decentralized.

  17. Symmetry and optical anisotropy in CdSe/ZnSe quantum dots

    Energy Technology Data Exchange (ETDEWEB)

    Kiessling, Tobias

    2009-10-29

    The material system of choice for the investigations performed in the frame of this Thesis were self-assembled CdSe/ZnSe QDs. The reason for this choice is twofold. First, CdSe/ZnSe QDs can be grown with excellent optical quality, which is a prerequiste for optical studies. Second, due to the polar nature of II-VI compound semiconductors, optical anisotropies induced by various asymmetries are more pronounced than in their IIIV or element IV counterparts. Unlike in the III-V materials, where the self-organization of QDs is well described by the Stranski-Krastanow growth mode, the peculiarities of the QD formation are not entirely clear in II-VI alloys. For the purposes of the current work QDs emerging from two variants of Molecular Beam Epitaxy (MBE) growth were studied. In order to establish a clear connection between the optically observed anisotropies and the growth induced asymmetries in the QDs we start out by summarizing all available structural and morphological studies that were performed on the resultant QDs, including x-ray diffraction, atomic force microscopy, high resolution transmission electron microscopy and resonant Raman scattering. Extensive investigations by Photoluminescence (PL) and Photoluminescence Excitation (PLE) spectroscopy hence detail the resultant electronic structure of excitons confined to the above QDs as well as their energy relaxation across the latter. We find that for these small-sized strongly confining QDs k-vector conservation is entirely relaxed, which enables interaction of the excitons with a continuum of phonons and explains fast and efficient exciton capture by the QDs, even for excitation conditions far above the ground state. We demonstrate how this provides an alternative fast relaxation channel to Auger-like electron-hole scattering, that may also explain fast hole relaxation and adds to the understanding of the absence of a phonon bottleneck in the energy relaxation in these type of QDs. With the above analysis as a

  18. Uma analise critica sobre “Vida de Empreguete” e a inserção da mulher no mercado de trabalho

    Directory of Open Access Journals (Sweden)

    Filipe Lins Santos

    2013-07-01

    Full Text Available Resumo: O objetivo do trabalho é analisar a inserção da mulher no mercado de trabalho e entender como isso se relaciona com as estruturas simbólicas da sociedade acerca do sexo feminino e suas consequências. Isso é relevante em face da tripla jornada de trabalho, níveis de stress e problemas de saúde que o sexo feminino passa a vivenciar em decorrência dessa conquista jurídica, logo se percebe a necessidade de políticas públicas que permitam as mulheres exerçam seus direitos sem prejudicar a sua saúde e viabilizem sua inserção e reconhecimento social. Assim para essa análise se utilizará da música Vida de Empreguete, para demonstrar que a conquistas sociais podem representar uma inversão social e não um reconhecimento, logo galgar posições não significa mudança de identidades sobre o sujeito. Para isso se recorrerá a vertente jurídico-sociologica, mediante levantamento bibliográfico e estatístico sobre a relação empregatícia da mulher e se terá como marco teórico o simbolismo de Pierre de Bourdieu para demonstrar as relações simbólicas e consequentemente o preconceito implícito ainda no mercado de trabalho feminino. Palavra-chave: Direitos da mulher, identidade de gênero, feminismo e preconceito   Abstract: The objective is to analyze the integration of women into the labor market and understand how it relates to the symbolic structures of society about women and their consequences. This is relevant in the face of triple workload, stress levels and health problems that the female starts to experience as a result of this achievement legal, one soon realizes the need for public policies that enable women to exercise their rights without undermining their health and make possible their integration and social recognition. So for this analysis is the use of music Vida de Empreguete, to show that the social achievements may represent a reversal and not a social recognition, not just climb positions, changing

  19. RNA adducts with Na 2SeO 4 and Na 2SeO 3 - Stability and structural features

    Science.gov (United States)

    Nafisi, Shohreh; Manouchehri, Firouzeh; Montazeri, Maryam

    2011-12-01

    Selenium compounds are widely available in dietary supplements and have been extensively studied for their antioxidant and anticancer properties. Low blood Se levels were found to be associated with an increased incidence and mortality from various types of cancers. Although many in vivo and clinical trials have been conducted using these compounds, their biochemical and chemical mechanisms of efficacy are the focus of much current research. This study was designed to examine the interaction of Na 2SeO 4 and Na 2SeO 3 with RNA in aqueous solution at physiological conditions, using a constant RNA concentration (6.25 mM) and various sodium selenate and sodium selenite/polynucleotide (phosphate) ratios of 1/80, 1/40, 1/20, 1/10, 1/5, 1/2 and 1/1. Fourier transform infrared, UV-Visible spectroscopic methods were used to determine the drug binding modes, the binding constants, and the stability of Na 2SeO 4 and Na 2SeO 3-RNA complexes in aqueous solution. Spectroscopic evidence showed that Na 2SeO 4 and Na 2SeO 3 bind to the major and minor grooves of RNA ( via G, A and U bases) with some degree of the Se-phosphate (PO 2) interaction for both compounds with overall binding constants of K(Na 2SeO 4-RNA) = 8.34 × 10 3 and K(Na 2SeO 3-RNA) = 4.57 × 10 3 M -1. The order of selenium salts-biopolymer stability was Na 2SeO 4-RNA > Na 2SeO 3-RNA. RNA aggregations occurred at higher selenium concentrations. No biopolymer conformational changes were observed upon Na 2SeO 4 and Na 2SeO 3 interactions, while RNA remains in the A-family structure.

  20. [Influenza-related respiratory illnesses and associated causes among the elderly in a city in Northeast Brazil].

    Science.gov (United States)

    Gomes, Aline de Andrade; Nunes, Marco Antônio Prado; Oliveira, Cristiane Costa da Cunha; Lima, Sônia Oliveira

    2013-01-01

    Nationwide influenza vaccination campaigns are held annually in Brazil during the same time of the year. This study aimed to analyze deaths from respiratory illnesses and influenza-related causes among the elderly in the city of Aracaju, capital of Sergipe State, Brazil. Data were analyzed from the following databases: Information System on Influenza Epidemiological Surveillance (SIVEP_GRIPE), Hospital Information System (SIH), Mortality Information System (SIM), and Health Informatics Department (DATASUS), from 1998 to 2007, Sergipe State Central Laboratory (LACEN-SE), and rainfall data from the National Meteorology Institute (INMET). The year 2007 showed the highest mortality rate from influenza and related causes in elderly individuals. From 1998 to 2007, mortality rates from influenza-related respiratory illnesses and associated causes in Aracaju city were higher than in the States of Brazil, indicating the need to reformulate the influenza vaccination schedule in elderly residents of this city.