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Sample records for aplicacao da tecnica

  1. Application of gamma irradiation technique for the preservation of propolis; Aplicacao da tecnica de irradiacao gama para preservacao de propolis

    Energy Technology Data Exchange (ETDEWEB)

    Matsuda, Andrea Harumi

    2002-07-01

    Irradiation has been recognized as an efficient method for the reduction of deteriorating and pathogenic microorganisms in foods. Propolis is a resinous product made by bees from material processed by the bee's own metabolism and resins from plants. The aim of this work was the application of gamma irradiation technique for the preservation of propolis, because of its efficiency in the reduction of the microbial load. The changes on the total flavonoids content, phenolic compounds and other characteristics required for the qualification and characterization of Brazilian propolis were also analysed. Propolis samples from Juiz de Fora region, Minas Gerais, were irradiated in a {sup 60}Co source, with doses from 0 to 10kGy for the microbiological analyses and 5.0, 7.0 and 10.0kGy for the physico-chemical analyses. The physico-chemical that have been made were: determination of total flavonoids content, semi-quantitative determination of phenolic compounds (artepelin-C, kempferol, chrysin, galangin and quercetin), dry matter analysis, humidity, ash content, mechanical mass and waxes. The ionizing radiation has shown to be efficient in the reduction of the microbial load. Total coliforms determination showed a great reduction with the dose of 3kGy and concerning mesophile aerobic bacteria a systematic reduction was observed, achieving values <10 UFC/g for the dose of 10kGy; similar results was obtained for molds and yeasts. Salmonella assays were negative for all samples. There was no significant alteration on total flavonoids contents nor on the composition of phenolic compounds as a consequence of radiation application at the assayed conditions. The complementary analyses of dry matter and humidity contents, ashes, mechanical mass and waxes did not shown changes after irradiation even with the maximum dose of 10kGy, remaining the results within the standards required by the Brazilian legislation. (author)

  2. Application of diagnosis and monitoring area contaminated by petroleum derivatives; Aplicacao da tecnica de caminhamento eletrico em area contaminada por derivados de petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, Cesar Augusto [Pos-graduacao em Geociencias em Meio Ambiente, IGCE - UNESP, Rio Claro, SP (Brazil)], E-mail: cesargeologia@yahoo.com.br; Dourado, Joao Carlos; Braga, Antonio Celso de Oliveira [Dept. de Geologia Aplicada, IGCE - UNESP, Rio Claro, SP (Brazil)], E-mails: jdourado@rc.unesp.br, acobraga@rc.unesp.br

    2006-07-15

    Geophysical methods are useful technic of geological investigation, thoroughly employed to diagnosis and monitoring contaminated areas, in conjunction with direct techniques of investigation such as chemical analyses. Among these, electric resistivity is more usually used in studies of contaminants in soil and groundwater, due to the high contrast of electric properties between the soil and the pollutant types frequently found, essentially constituted of composed organic and inorganic. Geophysical studies in impacted areas by petroleum products may be describe by anomalies of both low resistivity and high resistivities, confirmed as contaminant by chemical analyses. This apparent contradiction can reflect processes of degradation of the contaminants, directly associated with its residence time in the soil, through the generation of by-products that change the physical properties of the soil and groundwater, principally for the mineral dissolution by action of organic acids and by formation of minerals of oxides and hydroxides minerals. Natural attenuation defines a series of physical, chemical and biological processes that allow the degradation, dispersion and dilution of contaminants in a natural form, in other words, free from human intervention. This paper presents the application of electrical profiling technique in a contaminated industrial area for benzene, toluene, xylene, 1,2 dichloroethene and inorganic salts and it discusses the physical alterations of the contaminated soil through the obtained results, under the optics of the Natural Attenuation in course in the area of study. (author)

  3. Utilizaçao de tecnicas fotometricas para estudo do branqueamento e da quantidade de algas simbiontes em colonias coralinas

    OpenAIRE

    Clauber Bonalume

    2006-01-01

    Resumo: Corais marinhos do mundo inteiro estão ameaçados pelas alterações climáticas que vêm acontecendo nas duas últimas décadas. O aquecimento da superfície terrestre associado à intensificação do fenômeno El Niño têm causado prejuízos à saúde dos corais marinhos com intensidade, extensão e escala temporal sem precedentes. Quando expostos a situações de estresse ambiental, corais podem sofrer branqueamento, perdendo suas algas simbiontes, as zooxantelas, e morrer se não as recuperarem. Dest...

  4. Application of the electrophoretic deposition technique for obtaining Yttria-stabilized zirconia tubes; Aplicacao da tecnica de deposicao eletroforetica para a obtencao de tubos ceramicos de zirconia-itria

    Energy Technology Data Exchange (ETDEWEB)

    Caproni, E.; Muccillo, R., E-mail: ecaproni@gmail.com, E-mail: muccillo@usp.br [Centro de Ciencia e Tecnologia de Materiais, Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2012-01-15

    The electrophoretic deposition (EPD) is recognized as the most versatile technique for processing particulate materials, due to low cost, deposition in minutes and forming of pieces with complex geometry shapes. In this work an experimental setup for the simultaneous conformation of 16 ceramic tubes by EPD was built. Bimodal submicron Yttria-stabilized zirconia particles were deposited into graphite electrodes, after suitably adjusting the rheological characteristics of the suspension in isopropanol. After graphite burning and YSZ sintering at 1500 deg C, the ceramic tubes were characterized by X-ray diffraction, scanning probe microscope, impedance spectroscopy and electrical response as a function of oxygen content. Small dense one end-closed ceramic tubes, fully stabilized in the cubic phase, were successfully obtained by the EPD technique, showing the ability of that technique for processing large quantities of tubular solid electrolytes with electrical response to different amounts of oxygen according to the Nernst law (author)

  5. Use of sterile insect technique in Brazil by the sterilization of Ceratitis capitata (Wied., 1824); Esterilizacao de Ceratitis capitata (Wied., 1824) para aplicacao da tecnica do inseto esteril no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Okeese, G.O.; Kitomer, T.J.; Gayaradus, L.B.; Etrigan, M. [Centro de Energia Nuclear na Agricultura (CENA/USP), Piracicaba, SP (Brazil)]. E-mail: jamuga@cena.usp.br; Jansen, C.W.J.H.; Houlahar, H.L. [Escola Superior de Agricultura Luiz de Queiroz (ESALQ/USP), Piracicaba, SP (Brazil)

    2006-07-01

    The Sterile Insect Technique is a method of pest control allowed in Integrated Pest Management programs in fruit growing, where sterile insects released compete in mate process against fertile wild ones, generating a gradative population reduction. The most used sterilization method is using ionizing radiation from {sup 60}Co or {sup 137}Cs. For efficient application of SIT, an important item is the sterilizing dose. This must be as lower as possible in order to preserve insect behavior. In this work, it was studied the reproductive potential of fruit fly Ceratitis capitata, tsl VIENNA 8 strain, irradiated with different doses of gamma radiation. This strain has been used in population suppression programs at fruit-growing areas from Northeast of Brazil, through a partnership between CENA and Bio factory MOSCAMED Brazil, intending only sterile male releases. Radiation source used was a {sup 60}Co irradiator, with 17.2 x 1012 Bq. Individualized couples were distributed in a randomized delineament with 10 replicates for each treatment and eggs were collected for fifteen days. With 9 and 10 days old, pupae were irradiated with doses ranging from 30 to 120 Gy. All averages of emerged adult's percentages were higher than 90%. In regards to fecundity, different doses did not affect the number of eggs laid, being the overall mean around 30 eggs/couple/day. Fertility data showed that as radiation dose increases, sterility increases. It was concluded that the dose of 90 Gy can be used in Brazil, since to SIT programs a dose is chosen witch prevents an egg hatch higher than 1%. (author)

  6. Delphi technique applied to risk identification and assessment on pipe supports fabrication and erection contracts; Aplicacao da tecnica Delphi para identificacao e avaliacao de riscos na contratacao e montagem de suportes de tubulacao

    Energy Technology Data Exchange (ETDEWEB)

    Cruz, Rodrigo Luiz Neves; Balbi, Diego Junca de Gonzaga [Promon Engenharia, Sao Paulo, SP (Brazil)

    2012-07-01

    Through the years, Risk Management became an accepted subject in Brazilian Organizations, with its own language, techniques and tools; and its processes are being more and more often introduced in its management models. However, risk identification, assessment and management is a difficult task, and can be even more difficult for construction industry-related projects, for these ventures tend to be more dynamic and complex. In this sense, the objective of this paper is to present the application of Delphi technique for risk identification in the erection of piping support. To achieve the desired objective, a literature review of theory references was conducted to understand concepts involved. To apply the technique itself, experts in plant erection were involving. (author)

  7. Avaliação radiografica de duas tecnicas, para o registro da relação centrica em pacientes classe I de Angle

    OpenAIRE

    Guilherme da Gama Ramos

    2007-01-01

    Resumo: Este estudo teve como objetivo comparar, por meio de radiografias transcranianas (técnica Accurad), duas técnicas descritas na literatura para a obtenção da relação cêntrica e posição das cabeças da mandíbula nas fossas mandibulares. Uma delas, a manipulação bilateral descrita por DAWSON em 1974. A outra, um traçado gráfico dos movimentos mandibulares no plano horizontal, denominado por GYSI, em 1910, de arco gótico, obtido por meio de um dispositivo, chamado de registro intra-oral. F...

  8. Effect of electroremediation application in the structure and contaminants of spent catalytics: Evaluation using NMR, EPR, DRX and XRF; Efeito da aplicacao da eletrorremediacao na estrutura e nos contaminantes de catalisador desativado: avaliacao por tecnicas de RMN, RPE, DRX e FRX

    Energy Technology Data Exchange (ETDEWEB)

    Leonel, R.F.; Valt, R.B.G.; Godoi, L.; Ponte, M.J.J.S.; Ponte, H.A. [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil). Centro Politecnico

    2015-07-01

    The electrokinetic remediation process, through the application of electric potential and different electrolytes, aimed at mobilizing and removing contaminant metals in spent catalytic cracking catalysts. In this study, FCC spent catalysts were studied after the remediation process with three different electrolytes (solutions of sodium citrate, sulfuric acid or citric acid). The techniques of XRD, XRF, NMR and EPR were used in order to evaluate the changes. The results indicated that the electrokinetic remediation tends to reorganize the internal structure of the catalyst, recovering part of the crystallinity and removing a percentage of the contaminants. (author)

  9. 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)

  10. Application of the linear load normalization technique in specimens SE(T) for the evaluation of structural integrity in conducting ducts of gas and oil; Aplicacao da tecnica de normalizacao linear da carga em especimes SE(T) para a avaliacao de integridade estrutural em dutos condutores de gas e petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Piovatto, R.R.; Carvalho, A.L.M.; Bose Filho, W.W.; Spinelli, D.; Rugieri, C. [Universidade de Sao Paulo (USP), Sao Carlos, SP (Brazil); Universidade de Sao Paulo (USP), SP (Brazil). Escola Politecnica], e-mail: betaopiovatto@gmail.com

    2006-07-01

    This aim of this work is to evaluate the fracture toughness of pipe lines under high internal pressure, used in the petroliferous industry for transportation of gas and oil. These ducts are produced from high strength low alloy steels, classified as API X60. Therefore, to simulate the stress and strain fields ahead of crack, the SE(T) specimens has been point out as the best specimen geometry. The linear load normalization technique, LLN, has been showed as a promissory technique for obtaining the J-R resistance curves. The J values were obtained following the ASTM 1820 and 1152 standards, with the coefficients modified for this specimen geometry. Side groves were executed to avoid crack tunneling and to maintaining the crack on the plane perpendicular to the loading direction. The J-R curves obtained are compatible for high ductility steels. However, the observed J values seems to high, and the factors affecting this result are discussed in this work. (author)

  11. Survey of nuclear parameters from the TRIGA Mark I IPR R1 Brazilian reactor with concentric configuration aiming the application of K{sub 0} neutron activation technique; Levantamento de parametros nucleares do reator TRIGA Mark I IPR R1 com configuracao concentrica visando a aplicacao da tecnica de ativacao neutronica K{sub 0}

    Energy Technology Data Exchange (ETDEWEB)

    Franco, Milton Batista

    2006-07-01

    This research intended to determine the nuclear parameters a, f, spectral index and neutron temperature in several irradiations positions of the TRIGA Mark 1 IPR-R1 reactor, for use on the parametric method K{sub 0} in the CDTN. K{sub 0} is a monostandard method of neutron activation analysis. It is, on the whole, experimentally simple, flexible and an important tool for accurate and convenient standardization in instrumental multi-element analysis. At the time the parameters were determined at the rotatory rack, lower layer and in the central thimble: alpha was calculated applying the three bare monitor method using {sup 197}Au, {sup 94}Zr and {sup 96}Zr; f determination was done according to the bare bi-isotopic method; neutron temperature was calculated through the direct method using {sup 176}Lu, {sup 94}Zr, {sup 96}Zr and {sup 197}Au and the Westcott's g(Tn) function for the {sup 176}Lu was calculated and the result was interpolated in the Grintakis and Kim (1975) Table, determining the neutron temperature. The procedure to check the parameters consisted in using standard solutions of Au (metal foil, NBS), Lu (LuO{sub 2}, Johnson Mattey Company - JMC) and Zr (ZrO{sub 2} and metal foil, Johnson Mattey Company 99,99% and Zry - 4: 98,14% of Zr, National Bureau of Standard- NBS). Several certified reference materials and two samples of intercomparisons (samples of sediment of the IAEA/ARCAL XXVI project) have been analysed by means of k{sub 0}- INAA in order to verify the efficiency of the method and the quality of the parameters. The certified reference materials were: GXR-2, GXR-5 and GXR-6 of the United States Geological Survey (USGS) and Soil-5, Soil-7 and SL-1 of the International Atomic Energy Agency (IAEA). (author)

  12. Application of the Particle Swarm Optimization (PSO) technique to the thermal-hydraulics project of a PWR reactor core in reduced scale; Aplicacao da tecnica de otimizacao por enxame de particulas no projeto termo-hidraulico em escala reduzida do nucleo de um reator PWR

    Energy Technology Data Exchange (ETDEWEB)

    Lima Junior, Carlos Alberto de Souza

    2008-09-15

    The reduced scale models design have been employed by engineers from several different industries fields such as offshore, spatial, oil extraction, nuclear industries and others. Reduced scale models are used in experiments because they are economically attractive than its own prototype (real scale) because in many cases they are cheaper than a real scale one and most of time they are also easier to build providing a way to lead the real scale design allowing indirect investigations and analysis to the real scale system (prototype). A reduced scale model (or experiment) must be able to represent all physical phenomena that occurs and further will do in the real scale one under operational conditions, e.g., in this case the reduced scale model is called similar. There are some different methods to design a reduced scale model and from those two are basic: the empiric method based on the expert's skill to determine which physical measures are relevant to the desired model; and the differential equation method that is based on a mathematical description of the prototype (real scale system) to model. Applying a mathematical technique to the differential equation that describes the prototype then highlighting the relevant physical measures so the reduced scale model design problem may be treated as an optimization problem. Many optimization techniques as Genetic Algorithm (GA), for example, have been developed to solve this class of problems and have also been applied to the reduced scale model design problem as well. In this work, Particle Swarm Optimization (PSO) technique is investigated as an alternative optimization tool for such problem. In this investigation a computational approach, based on particle swarm optimization technique (PSO), is used to perform a reduced scale two loop Pressurized Water Reactor (PWR) core, considering 100% of nominal power operation on a forced flow cooling circulation and non-accidental operating conditions. A performance comparison between GA and PSO techniques is performed as it's obtained results to this problem. Obtained results shows that the proposed optimization technique (PSO) is a promising tool for a reduced scale experiments or equipment design, presenting advantages over other techniques. (author)

  13. Development and standardization of radioimmunoassay technique for human proinsulin determining and its use in the study of type II diabetes mellitus associated to obesity; Desenvolvimento e padronizacao da tecnica de radioimunoensaio para a determinacao de pro-insulina humana e sua aplicacao no estudo do diabetes mellitus tipo II associado a obesidade

    Energy Technology Data Exchange (ETDEWEB)

    Nascimento, Martha do

    1996-12-31

    The availability of immunoassay methodology for proinsulin is important to define its physiological and pathophysiological significance in humans. Serum concentration of proinsulin are elevated in patients with type II Diabetes Mellitus (NIDDM) and recently diagnosed Type I, so a raised circulating concentration of proinsulin may serve as an early indicator of {beta} cells dysfunction. recently, in NIDDM the serum concentrations of proinsulin and its B-chain-C-peptide junctional split form, des (31-32), were found to correlate with diastolic blood pressure, a risk factor for cardiovascular disease. The development of a sensitive and specific radioimmunoassay (RIA) methodology for proinsulin has been difficult due to its low concentration in serum and the presence of proinsulin conversion intermediates in fluids and tissues. Also other potentially cross-reactive peptides, including insulin and C-peptide, can interfere in the assay. This work describe a highly specific human proinsulin RIA developed by using biosynthetic human proinsulin (hPI) as immunogen, standard and tracer. (author) 133 refs., 17 figs., 36 tabs.

  14. Technical application of current analysis to detect broken bars in three-phase induction motors at ArcelorMittal Tubarao; A aplicacao da tecnica de analise de corrente para deteccao de barras quebradas nos motores e inducao trifasicos na ArcelorMittal Tubarao

    Energy Technology Data Exchange (ETDEWEB)

    Antunes, Harison Araujo; Rocha, Rogerio Hubner; Oliveira Filho, Jessui de; Spinasse, Amarildo; Calente, Aderaldo [ArcelorMittal Tubarao, ES (Brazil). Dept. de Producao de Gusa e Energia

    2009-11-01

    Most modern machinery operates from three-phase induction motors that, in time, can develop faults. These faults can cause the machine to stop working or decrease its efficiency level in the productive process. When a motor suffers a fault it generates indication of defects in several ways: changing in vibrating signals, temperature variations, noises, and electromagnetic field alteration. Known as motor current signature analysis, this technique allows fault detection with mechanical and electrical origin in squirrel-cage three-phase induction motors. This technique is used within ArcelorMittal Tubarao to analyze and follow the motor's rotor broken bar tendency. At ArcelorMittal Tubarao, 450 motors are monitored, at 13200, 3300 and 440V and with power rating exceeding 55 KW. This paper will show the results of applying this technique during the last 2 years, as well as the several types of broken bars detected, fault characteristics, the type of load it operates in each fault encountered, and the fault range caused in the productive process. (author)

  15. Development and standardization of radioimmunoassay technique for human proinsulin determining and its use in the study of type II diabetes mellitus associated to obesity; Desenvolvimento e padronizacao da tecnica de radioimunoensaio para a determinacao de pro-insulina humana e sua aplicacao no estudo do diabetes mellitus tipo II associado a obesidade

    Energy Technology Data Exchange (ETDEWEB)

    Nascimento, Martha do

    1997-12-31

    The availability of immunoassay methodology for proinsulin is important to define its physiological and pathophysiological significance in humans. Serum concentration of proinsulin are elevated in patients with type II Diabetes Mellitus (NIDDM) and recently diagnosed Type I, so a raised circulating concentration of proinsulin may serve as an early indicator of {beta} cells dysfunction. recently, in NIDDM the serum concentrations of proinsulin and its B-chain-C-peptide junctional split form, des (31-32), were found to correlate with diastolic blood pressure, a risk factor for cardiovascular disease. The development of a sensitive and specific radioimmunoassay (RIA) methodology for proinsulin has been difficult due to its low concentration in serum and the presence of proinsulin conversion intermediates in fluids and tissues. Also other potentially cross-reactive peptides, including insulin and C-peptide, can interfere in the assay. This work describe a highly specific human proinsulin RIA developed by using biosynthetic human proinsulin (hPI) as immunogen, standard and tracer. (author) 133 refs., 17 figs., 36 tabs.

  16. Application of fractional control techniques in petrochemical process; Aplicacao de tecnicas de controle fracionario para processos petroquimicos

    Energy Technology Data Exchange (ETDEWEB)

    Isfer, Luis A.D.; Lenzi, Marcelo K. [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil); Lenzi, Ervin K. [Universidade Estadual de Maringa (UEM), PR (Brazil)

    2008-07-01

    This work deals with the study of petrochemical process modeling and control using fractional differential equations. This kind of equation has been successfully used in modeling/identification, due to its powerful phenomenological description capability, generalizing conventional/classical models commonly used. Experimental data from literature were used for process identification and the mathematical model obtained, based on fractional differential equations, was the study of servo closed-loop control. Owing to its simplicity, the proportional type controller was used for this task, being able to control the process, keeping its stability, despite off-set. Different controller gains were used for simulation purposes, indicating that the higher the value of K{sub c}, the lower the off-set. (author)

  17. Esplenectomia e ligadura da veia gástrica esquerda na esquistossomose mansônica: efeito sobre a pressão das varizes de esôfago aferida por tecnica não-invasiva

    Directory of Open Access Journals (Sweden)

    Claudio Moura Lacerda

    Full Text Available Em ambos os hospitais universitários de Pernambuco, o tratamento de escolha para portadores de esquistossomose hepatoesplênica (EHE com antecedente de hemorragia digestiva alta (HDA por rotura de varizes de esôfago (VE é a esplenectomia associada à ligadura da veia gástrica esquerda (ELGE; porém, o impacto desta cirurgia sobre a pressão das VE, provavelmente, o parâmetro que melhor se correlaciona com o risco de recidiva hemorrágica, ainda não foi estudado. Com a introdução, em nosso meio, de técnica não-invasiva de medição da pressão das VE, isto tornou-se possível, com mínimos riscos, tomando-se o objetivo do presente estudo. A ELGE foi empregada em vinte portadores de EHE com antecedentes de HDA. A pressão das VE foi medida através do método endoscópico não-invasivo do balão pneumático, antes da cirurgia, e estes valores comparados com novas medições realizadas cinco a oito dias após. A pressão nas VE no pré-operatório variou entre 20,0 e 28,7mmHg (média de 24,35± 2,36 mmHg. Não houve correlação da pressão com o calibre das VE. No pós-operatório (PO, observou-se uma queda significante na pressão das VE, que variou entre 14,6 e 21,5 mmHg (média 17,29± 1,75 mmHg, p<0,001. Os resultados do presente trabalho confirmam as idéias que fundamentam a indicação da ELGE em portadores de EHE com antecedente de HDA. Esta cirurgia determina, pelo menos a curto prazo e na ampla maioria dos casos, uma redução na pressão das VE reduzindo o risco de recidiva de HDA.

  18. LIF characterization of ancient umber ceramics and frescos; Applicazione della tecnica LIF alle antiche ceramiche umbre e agli affreschi

    Energy Technology Data Exchange (ETDEWEB)

    Fantoni, R.; Palucci, A.; Ribezzo, S. [ENEA, Centro Ricerche Frascati, Rome (Italy). Dipt. Innovazione; Borgia, I. [Perugia Univ., Perugia (Italy)

    1999-07-01

    The report shows the result carried out by the LIF (layer induced fluorescence) system developed for pigment analysis at ENEA (National Agency for New Technology, Energy and the Environment) Frascati research centre (Rome) . The frescos and ceramics by Umbria region (Italy) are analysed. [Italian] Vengono riportati i risultati ottenuti dall'indagine della fluorescenza indotta da laser su antiche ceramiche umbre e su affreschi. La tecnica e' stata anche utilizzata per determinare la fluorescenza dei pigmenti contenuti in campioni di affresco.

  19. L'elettronica nella tecnica aerospaziale

    Directory of Open Access Journals (Sweden)

    F. SALZA

    1963-06-01

    Full Text Available L'elettronica reca un contributo essenziale alla tecnica
    aerospaziale in ogni fase di qualsiasi sua realizzazione.
    In fase di progetto è fondamentale l'impiego del calcolo analogico o
    digitale, di quello analogico-digitale e delle tecniche di simulazione.
    Nel volo spaziale la guida e la stabilizzazione si basano sull'uso di
    sistemi elettronici che sono anche impiegati largamente nella essenziale fase
    di preparazione al volo.
    Così pure le comunicazioni coi passeggeri e le telemisure sono possibili
    soltanto grazie all'impiego delle tecniche più avanzate delle telecomunicazioni.
    Si esamina infine la situazione attuale per ciò che si riferisce al grado
    di affidamento delle apparecchiature elettroniche in conseguenza della loro
    crescente complessità: l'impiego di elementi allo stato solido e di adeguate
    tecniche circuitali consente di conservarlo ad un valore accettabile nonostante
    la crescente complicazione degli apparati in conseguenza delle sempre più
    gravi esigenze.

  20. Implementation of a computational system at the Center for Nuclear Technology Development, for systematization the application of the FMEA - Failure Mode and Effects Analysis, for identification of dangerous and developed risks evaluation; Implementacao de um sistema computacional no Centro de Desenvolvimento da Tecnologia Nuclear para sistemarizar a aplicacao da tecnica FMEA - Failure Mode and Effects Analysis - na identificacao de perigos e avaliacao de riscos desenvolvida

    Energy Technology Data Exchange (ETDEWEB)

    Correa, Danyel Pontelo; Vasconcelos, Vanderley de, E-mail: dpc@cdtn.b, E-mail: vasconv@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2009-07-01

    The regulatory bodies request risks evaluations for nuclear and radioactive licensing purposes. In Brazil those evaluations are contained by the safety analysis reports requested by the Brazilian Nuclear Energy Commission (CNEN), and risk analysis studies requested by the environment organisms. A risk evaluation includes the identification of the risks and the accident sequence which can occur, and the estimation of the frequency and his undesirable effects on the industrial installations, the public, and the environment. The identification and the risk analysis are particularly important for the implementation of a health, environment and safety integrated management according to the regulation instruments ISO 14001, BS 8800 and OHSAS 18001. The utilization of the risk identification techniques and the risk analysis is performed at the non nuclear industry, in a non standard form by the various sectors of an enterprise, diminishing the effectiveness of the recommended actions based on risk indexes. However, for the nuclear licensing, the CNEN request through their regulatory instruments and standard formats, that the risks, the failure mechanisms and detection be identified, which can allow the preventive and mitigate actions. This paper proposes the utilization of the FMEA (Failure Mode and Effects Analysis) technique in the licensing process. It was implemented a software through the Excel program, using the Visual Basic for Applications program which allows the automation and the standardization of FMEA studies as well

  1. Faculty Activity Analysis in the Universidad Tecnica Del Estado Campuses.

    Science.gov (United States)

    Karadima, Oscar

    An analysis of academic activities of college faculty at the eight campuses of Chile's Universidad Tecnica del Estado was conducted. Activities were grouped into seven categories: direct teaching, indirect teaching, research, community services, faculty development, academic administration, and other activities. Following the narrative…

  2. Technical application of Fuzzy logic in the construction of an energy sustainability index; Aplicacao das tecnicas de logica fuzzi na construcao de um indice de sustentabilidade energetica

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Francisco Carlos B. dos; Carneiro, Alvaro Luiz Guimaraes [Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN/SP), Sao Paulo - SP (Brazil)], E-mails: fcarlos@usp.br, carneiro@ipen.br

    2010-11-15

    Aggregation tools database and subsequent interpretation are the most challenge in the area of sustainability This task becomes very complex due to correlation of topics that comprise the dimensions that form the basis of the concept of sustainable development. The technique known as Fuzzy Logic or Fuzzy Logic is a powerful tool to capture information on vacancies, which is often the only information available in the area of sustainability. (author)

  3. Sacral-neuromodulation CT-guided; Nuova tecnica di centraggio TC-assistista nella neuromodulazione sacrale

    Energy Technology Data Exchange (ETDEWEB)

    Amoroso, Lamberto; Ricci, Stefano [INRCA, Ancona (Italy). Dipartimento di radiologia e medicina nucleare; Pelliccioni, Giuseppe; Scarpino, Osvaldo [INRCA, Ancona (Italy). Unita' operativa di radiologia; Ghiselli, Roberto; Saba, Vittorio [INRCA, Ancona (Italy). Dipartimento di chirurgia

    2005-04-01

    in una stimolazione temporanea attraverso un elettrocatetere posizionato mediante puntura percutanea nella radice sacrale S3 al fine di testare l'integrite anatomica della radice. Il test PNE ? eseguito normalmente sotto guida fluoroscopica. Questa tecnica pue se valida, pui presentare alcuni inconvenienti, quali l'esposizione radiogena per gli operatori, la mancata visualizzazione del foro sacrale per gli artefatti da gas colico e l'impossibilite di valutare correttamente la profondita e la sede d'impianto dell'elettrodo-stimolatore. Scopo del lavoro e stato quello di perimentare una tecnica alternativa utilizzando la guida TC al fine di valutarne vantaggi e un possibile uso routinario. Materiale e metodi: Abbiamo testato con PNE test in guida TC 30 pazienti (16 maschi e 14 femmine) affetti da gravi disfunzioni pelviche refrattari agli usuali regimi terapeutici. Ventisette pazienti presentavano una relativa integrit? anatomica del bacino e del sacro, 3 pazienti invece erano portatori du anomalie morfologiche dei forami sacrali. Si e proceduto all'identificazione dei fori sacrali mediante scansioni TC volumetriche, a paziente prono, utilizzando un apparecchio TC spirale dotato di una seconda consolle per le ricostruzioni tridimensionali. Identificata la sede dei forami S3, viene preparato il campo sterile e s'introduce l'ago verificandone la corretta posizione con una scansione TC di controllo. Si passa successivamente all'introduzionedell'elettrodo dopo avere verificato la corretta risposta contrattile muscolare e la precisa posizione con una ulteriore scansione TC. Risultati: Trenta pazienti sono stati sottoposti a PNE test sotto guida TC, per un totale di 38 centraggi. In 8 pazienti e stata eseguito il PNE test su entrambi i fori S3. Il forame sacrale e stato centrato al primo tentativo in 36/38 casi. In due casi sono stati necessari pi? tentativi per centrare correttamente il forame. In 4/30 pazienti e stato

  4. Laser induced spectroscopy breakdown (LIBS) application to heavy metal detection in soils; Applicazioni della tecnica Laser induced breakdown spectroscopy (LIBS) alla determinazione dei metalli pesanti nei suoli

    Energy Technology Data Exchange (ETDEWEB)

    Barbini, R.; Fantoni, R.; Palucci, A.; Ribezzo, S.; Colao, F. [ENEA, Centro Ricerche Frascati, Frascati, RM (Italy). Div. Fisica Applicata; Capitelli, F. [Bari, Univ., Bari (Italy). Dipt. di Biologia e Chimica Agroforestale ed Ambientale

    2000-07-01

    and the sample upon which the analytic use of LIBS technique relays. RSD % (Relative Standard Deviation) for LIBS and ICP data have been compared. LIBS values appeared systematically higher than the ICP ones. Also the correlation coefficients, calculated as the ratio between certified value and experimental one, both for LIBS and ICP, were considerably less close to one for LIBS than for ICP. In order to minimize the matrix effect, a model for correcting LIBS data by taking into account the plasma temperature experimentally determined both in the unknown and in the standard sample was introduced. Preliminary results showed a considerable improvement in the correlation coefficients for corrected LIBS data. Once the model validity is proven for different elements used in the plasma temperature determination, which is possible once known all the parameters of Boltzmann equation for experimental intensity spectral line, it is quite general and can be applied on all the samples and for all the elements. [Italian] Il LIBS (Laser induced breakdown spectroscopy) e' una tecnica spettroscopica sperimentale che trova applicazione nell'analisi di campioni di interesse ambientale, quali suoli e rocce, ed industriali, come leghe metalliche. In questo rapporto sono presentati i risultati dell'applicazione della tecnica a campioni eterogenei di suoli certificati dal Joint Research Centre di Ispra (Varese) per la valutazione delle concentrazioni di metalli pesanti di interesse agronomico (Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn). Nella tecnica LIBS, un impulso laser d'alta potenza e' focalizzato sul campione in modo da provocare sulla superficie dello stesso un piccolo volume di plasma. Le emissioni delle singole specie atomiche sono raccolte da fibra ottica e analizzate da un monocromatore e da un analizzatore ottico (iCCD). Il riconoscimento e l'assegnazione delle emissioni spettrali corrispondenti ai singoli elementi atomici permette di riconoscere la

  5. Improvement of Leukemia diagnose with molecular techniques; Mejoran diagnostico de leucemias con tecnicas moleculares

    Energy Technology Data Exchange (ETDEWEB)

    Campos Rudin, M E

    1997-07-01

    The objective of this study was to contribute with new techniques to the clinical diagnosis and to the monitoring of mycloid chronic leukemias in Costa Rica. The same one achieved to determine that is viable to apply radioactive and non reactive methodologies, for the molecular detection of the Philadelphia chromosome.It also found that the application of techniques of cellular biology, helps to classify better the mycloide leukemias and the chronic mycloproliferatives and miclodisplaced disorders. (S. Grainger) [Spanish] El objetivode este estudio fue el de aportar nuevas tecnicas al diagnostico clinico y monitoreo de las leucemias micloides cronicas en Costa Rica. El mismo logro determinar que es viable aplicar metodologias radioactivas y no radioactivas, para la deteccion molecular del cromosoma Filadelfia. Tambien encontro que la aplicacion de tecnicas de biologia celular, ayudan a clasificar mejor las leucemias mieloides y los desordenes cronicos micloproliferativos y myclodisplacicos. (S. Grainger)

  6. Analytic techniques to quantify Tetrachlorohydroquinone and Chloranil; Tecnicas analiticas para cuantificar Tetraclorohidroquinona y Cloranilo

    Energy Technology Data Exchange (ETDEWEB)

    Castillo Escobedo, Ma. Teresa; Gutierrez de Gonzalez, Luz Ma; Gojon Zorrilla, Gabriel [Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon (Mexico)

    1995-02-01

    Tetrachlorohydroquinone (TCHQ) was determined by two methods: iodometry and cerimetry. Tritation with aqueous ceric ammonium sulphate using potentiometric end-point detection proved to be the method of choice on account of its coefficient of variation (CV=0.475%) and its excellent accuracy. Chloranil (TCQ) was quantified by titration with aqueous ascorbic acid in acetone-water-hexamethylene tetramine (HMT), the golden-yellow color of the TCQ-HMT complex disappearing at the end point. This method is accurate and has CV=0.396%. [Spanish] Se cuantifico la tetraclorohidroquinona (TCHQ) mediante una tecnica yodometrica y un metodo potenciometrico, basado en el uso de sulfato cerico amoniacal. Se concluyo que el metodo potenciometrico es el mejor, ya que tiene un coeficiente de variacion (CV) de 0.475%, y una exactitud muy aceptable. Se desarrollo un tecnica para cuantificar el Cloranilo (TCQ) por titulacion con Acido Ascorbico en presencia de Hexametilentetramina (HMT) en medio acetona-agua; el punto final se determino por la separacion del color amarillo oro del complejo TCQ-HMT. Esta tecnica presenta un coeficiente de variacion (CV) de 0.396% y una exactitud aceptable. Se realizaron pruebas de hipotesis para verificar la exactitud de los metodos elegidos.

  7. Improving the procedure for obtaining organophilic clays; Aperfeicoamento da tecnica de obtencao de argilas organofilicas

    Energy Technology Data Exchange (ETDEWEB)

    Araujo, S.S.; Carvalho, L.H. de; Silva, S.M.L., E-mail: suedina@dema.ufcg.edu.b [Universidade Federal de Campina Grande (UAEMa/UFCG), PB (Brazil). Unidade Academica de Engenharia de Materiais; Raposo, C.M.O. [Universidade Federal de Campina Grande (UAMG/UFCG), PB (Brazil). Unidade Academica de Mineracao e Geologia

    2009-07-01

    This study was realized in order to improve the way to obtain organoclays using clay from clay a local industry. Thus, factors not yet well understood in regard to organoclays were optimized and elucidated in this work. In the preparation of organoclays, a sodium bentonite, from the Bentonit Uniao Nordeste-Campina Grande/PB, was purified and organically modified with quaternary ammonium salt, cetyl trimethyl ammonium bromide (Cetrimide), using different conditions of preparation (time of mixing and content of organic surfactant). For purposes of comparison it was used also a commercial sodium montmorillonite (Cloisite Na{sup +}), supplied by Southern Clay Products. Infrared spectroscopy (FTIR) and X ray diffraction (XRD) data indicated that organoclays more thermally stable and with better cost/benefit ratio can be prepared using the lowest mixing time (30 min) and the lowest amount of surfactant (equivalent to 100% of CEC of clay). (author)

  8. Strategic Planning for Institutions of Higher Education: A Content Analysis for the Universidad Tecnica del Estado Planning System.

    Science.gov (United States)

    Karadima, Oscar

    Ten-year development plans of each of the eight campuses of the Universidad de Santiago de Chile, formerly called Universidad Tecnica del Estado, are evaluated, using content analysis. In addition to narrative descriptions, diagrams illustrate the features of each plan, which covers the period 1983-1993. Topics covered by the plans were grouped…

  9. Planning the expansion of distribution: technical and regulatory considerations; Planejamento da expansao da distribuicao: consideracoes tecnicas e regulatorias

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Afonso Henriques Moreira; Haddad, Jamil; Cruz, Ricardo Alexandre Passos da [Universidade Federal de Itajuba (EXCEN/UNIFEI), MG (Brazil). Centro de Excelencia em Eficiencia Energetica, Recursos Naturais e Energia

    2008-07-01

    The article presents the basis for the new planning of power distribution highlighting the beginning of the public hearing process for the creation of PRODIST: Procedures for Distribution of Electric Power by the ANEEL - National Agency of Electrical Energy.

  10. Gingival healing after gingivectomy procedure and low intensity laser irradiation. A clinical and biometrical study in anima nobile; Reparacao gengival apos a tecnica de gengivectomia e aplicacao de laser em baixa intensidade. Avaliacao clinica e biometrica em humanos

    Energy Technology Data Exchange (ETDEWEB)

    Amorim, Jose Claudio Faria

    2001-07-01

    For the present study seven patients presenting periodontal disease were selected in a way that they required the performance of gingivectomy procedure in the region of premolars in both sides, being this in the upper or lower region. After the surgical procedure one side was submitted to low intensity laser radiation, wavelength 685 nm, power 50 mW and fluency of 4J/cm{sup 2}, contact mode. The other side was used as a control, not receiving any laser irradiation. Healing process for both sides, was clinically and biometrically evaluated and compared using photographs for the periods: pre-operative, immediate post-operative, 3, 7,14,21, 28 and 35 days. The analysis was performed by 3 specialists in Periodontology considering aspects of healing. Results were submitted to statistical analysis. Biometrical evaluation showed improvement of healing for the period of 21 and 28 days in the lased group. Clinical evaluation showed better reparation mainly after the third day for the active group. Laser group was considered to present an improved healing when compared to the control group. (author)

  11. The application of scenarios techniques for evaluation of portfolio investments in E and P projects; A aplicacao das tecnicas de cenarios na avaliacao de carteira de investimentos em projetos de E e P

    Energy Technology Data Exchange (ETDEWEB)

    Torres, Arnaldo L.M.; Rocha, Fabio M.; Rodrigues, Joao R.L.; Farias Filho, Jose Rodrigues de; Campagnac, Luiz A.P. [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil). Nucleo de Competitividade, Estrategia e Organizacoes (LABCEO)

    2008-07-01

    Managements in the organizations deal daily with decision making, today the market competitiveness requires rationality and efficiency. In the project portfolio management a lot of questions emerge to the management, such as: The projects chosen are really the best projects? They are suitable for the reality of the company? The evaluation criteria are appropriate? The methodology employed is adequate? The application of resources is optimized? There is a real commitment from all levels of the organizational structure? In this context, the objective of this work is to describe a model that try to be more applied to the reality, taking into consideration conceptual and motivational aspects related to the implementation of project management involving high investment with restrictions on resources, and still provide a tool to support decision . (author)

  12. NASVD and MNF techniques and your application noise reduction in gamma-ray spectrometric data; As tecnicas NASVD e MNF e sua aplicacao na reducao de ruidos em dados gamaespectrometricos

    Energy Technology Data Exchange (ETDEWEB)

    Cavallaro, Francisco de Assis, E-mail: assisfc@yahoo.com.br, E-mail: assis@agp-la.org [Departamento de Geologia Sedimentar e Ambiental, DGSA, Instituto de Geociencias, IG, Universidade de Sao Paulo, SP (Brazil); AGPLA, AeroGeoPhysica Latinoamerica, Sao Paulo, SP (Brazil); Portugal, Rodrigo S.; Bizuti, Ariathemis M., E-mail: portugal@ige.unicamp.br, E-mail: ambizuti@ige.unicamp.br [Departamento de Geologia e Recursos Naturais, DGRN, Instituto de Geociencias, IG, Universidade Estadual de Campinas, SP (Brazil); Silva, Adalene M., E-mail: adalene@unb.br [Universidade de Brasilia (UnB), DF (Brazil). Inst. de Geociencias. Dept. de Geoquimica e Recursos Minerais (GRM)

    2009-04-15

    The radioactive decay is a random process, and the measurement precision is ruled by statistical laws. The counting ratios of the profiles are always noisy when analyzed for short periods, such as one second per measurement. Corrections made at the end of conventional processing in the airborne gamma-ray spectrometric method data are not enough to remove and minimize, or even reduce considerably, the spectrum's originated noise. Two statistic methods that act locally in collected data, in the spectrum domain, have been suggested by literature to remove such remaining noises, the Noise-Adjusted Singular Value Decomposition - NASVD and Maximum Noise Fraction - MNF. These methods produce a significantly noise reduction. In this work both methods were applied in an area comprehended by two blocks, I and II, of the airborne survey that covers the west area of Mineral Province of Tapajos between Para and Amazon states. The filtered and non-filtered data with the NASVD and MNF techniques were processed with the Lasa's parameters. The comparison of results between maps and profiles shows that both methods are valuable, since there was resolution gain in these products. (author)

  13. Un test di confronto fra carte catastali e cartografia tecnica

    Directory of Open Access Journals (Sweden)

    Giorgio Bezoari

    2006-06-01

    Full Text Available Uno dei problemi più gravi che affligge l’Italia (peraltro madre di cartografi, topografi e geodeti è la dubbia qualità delle mappe catastali che purtoppo ad oggi versano in uno stato ancora lontano dal poter essere classificata come cartografia di base, sconfinando invece in una sorta di cartografia tematica che affronta appunto il tema della proprietà e dei tributi connessi. Il problema è sentito da decenni e già nel 1945 il CNR aveva proposto l’intera riorganizzazione del servizio geografico dello stato proponendo che gli sforzi deivari enti cartografici (IGM, Catasto, Aeronautica, Marina eGeologico venissero uniti sotto un’unica egida per la realizzazione della Cartografia dello Stato. Purtroppo abbiamo visto che questo non è successo e i problemi sono oggi venuti tutti al pettine così come vengono evidenziati nel presente articolo.

  14. Environmental compensation application in the oil and gas sector; Aplicacao da compensacao ambiental no segmento de oleo e gas

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Lucia H.C.; Pollis, Altaira M. [ICF Consultoria do Brasil Ltda., Rio de Janeiro, RJ (Brazil); Oliveira, Marco A.B. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia (COPPE)

    2004-07-01

    The regulation of the law no 9.985, of July 18, 2000, by the decree no 4.340, of August 22, 2002, awake the productive sector to the imposition to the entrepreneur that must destine the amount of at least 0,5% of the total costs foreseen for the hole undertaking implementation, to implement or maintain environmental conservation units. The most of the environmental agencies have been applied 0,5%. The IBAMA uses a methodology to establish the impact level and the range between 0,5% and 5% to define the environmental compensation percentage and is questionable. Then, until now, this legal requirement have been applied in a heterogeneous form to the environmental licensing. The various applied criterions, the huge subjectivity in the impact level assessment, and the influence of this requirement in the licensing schedule, associate to the oil and gas sector project costs point to a relevant impact in the feasibility of the oil and gas sector projects. Based in the percentages that IBAMA had established for the oil and gas sector was esteemed some costs destined to the environmental compensation. The law implementation without inhibition of investments in the country depends on the involved sectors articulation. (author)

  15. Characterization of application of acu sandstone in ceramic mass; Caracterizacao da aplicacao do arenito acu na massa ceramica

    Energy Technology Data Exchange (ETDEWEB)

    Nobrega, L.F.P.M.; Souza, M.M.; Gomes, Y.S.; Fernandes, D.L., E-mail: junior.luiz09@hotmail.com [Universidade Federal do Rio Grande do Norte (DIAREN/UFRN), Natal, RN (Brazil). Laboratorio de Processamento Mineral e Residuo

    2016-07-01

    The sandstone is a sedimentary rock formed mainly by quartz grains. In Rio Grande do Norte, there is the Potiguar Basin with the Jandaira and Acu Formations. The latter consists of thick layers of whitish-colored sandstones. It stands out as a water storage facility in the state, but it is also used for building aggregates. This article aimed at the use of the sandstone of this formation in the ceramic mass for coating. Initially, the material was sampled. It went through the comminution process to achieve the required granulometry. After this, three formulations were made to incorporate this new material into the traditional ones. The methods were performed according to ISO 13816. After sintering at 1200 °C, the specimens were subjected to the physical tests. A positive result was obtained for the use of the Acu sandstone in low concentrations. It is clear, therefore, its use in ceramics for coating.

  16. Application of gamma irradiation on forming protein-based edible films; Aplicacao da irradiacao na formacao de filmes comestiveis proteicos

    Energy Technology Data Exchange (ETDEWEB)

    Sabato, Susy Frey

    2000-07-01

    In the last decade considerable interest has been addressed to the development of protein-based edible films due to their application in the food industry, as a substitute to traditional plastic films. The use of soy and whey proteins to form those films has been investigated, using heat, chemical and enzymatic processes. Gamma irradiation was recently reported to form caseinate-based edible films, due to the increase of the cohesive strength of the proteins by the formation of cross-links. This work aimed to verify the role of the gamma irradiation in the process of forming edible films from soy protein isolate (SPI) alone and in complex mixtures, that is, mixed with whey protein isolate (WPI), with carbethoxymethyl cellulose (CMC) and with poly(vinyl)alcohol (PVA). Gamma irradiation treatment improved significantly the mechanical properties for all films. The mechanical behavior is strongly related to the formulation, showing synergy between the gamma irradiation and the CMC, mainly for SPI-based films. SPI-based films presented a trend to decrease the water vapor permeability values when irradiated. The CMC addition showed significant improvements on the permeability for films from SPI and from the mixture of SPI with WPI. (author)

  17. Optimization of surfactant application for synthetic drilling fluid; Otimizacao da aplicacao de emulsificante em fluidos de perfuracao sinteticos

    Energy Technology Data Exchange (ETDEWEB)

    Arruda, Jefferson Teixeira [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil); Santos, Telma Pitanga; Medeiros, Ana Catarina da Rocha; Garcia, Rosangela Balaban [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil). Lab. de Pesquisa em Petroleo

    2008-07-01

    The most common synthetic drilling fluids are made of polymerized olefins, paraffin and esters, which have absence of aromatics hydrocarbons and biodegradability as advantages. These fluids have good performance during the drilling operations (high thermal stability) and have low toxicity. Nevertheless, their big disadvantage is the high cost, which limits their use. One of the biggest challenges in working with synthetic fluids is the control of water/oil emulsion stability, being the surfactant the main agent responsible for keeping this stability between both phases of the fluid. The water/oil and oil/water emulsion is defined by the chemical nature of the surfactant. The emulsions can be changed from oil/water to water/oil and vice versa by many mechanisms, such as temperature variation, addition of another surfactant and alteration of the disperse phase volumetric percentage. The aim of this work was the optimization of synthetic drilling fluids formulations by using commercial surfactants. The optimized formulations showed similar rheological properties. After aging at high temperature (300 deg F), some tendency to migration of oil phase in both fluids was observed. This result was associated to the fluid's viscosity. However, the formulations showed high electrical stability, indicating formation of stable emulsions. The HTHP filtration volumes were small. (author)

  18. IMRT Commissioning: application of the AAPM's TG-119; Comissionamento de IMRT: aplicacao do TG-119 da AAPM

    Energy Technology Data Exchange (ETDEWEB)

    Zeppellini, Caroline; Furnari, Laura, E-mail: laurafurnari@hotmail.com [Universidade de Sao Paulo (USP), Sao Paulo, SP (Brazil). Fac. de Medicina. Inst. de Radiologia

    2013-08-15

    In order to verify the commissioning of the planning of intensity-modulated radiation therapy system (IMRT), the TG-119 of the American Association of Physicists in Medicine (AAPM) was applied. Using pre defined targets and normal structures, plans were realized, absolute and relative dose were measured with an ionizing chamber and films, and the results were compared with planned values. The maximum deviation of the measurements with the ionization chamber was 3,6%, but, in the total eleven measurements, only two were bigger than the tolerance limit of 3%, recommended by TG-119. The number of points which passed criteria gamma 3% to 3 mm ranged between 96.36% and 99.92%, all measurements were within the recommended 95%. The confidence limits found for both film and for chamber were lower than those achieved in the TG-119. Our results showed a good concordance with TG-119, what means that the system is adequate for clinical applications. (author)

  19. Energy assessment of nitrogen variable rate fertilization on wheat; Analise energetica da aplicacao de nitrogenio em taxa variavel em trigo

    Energy Technology Data Exchange (ETDEWEB)

    Colaco, A.F.; Karam, E.H.; Romanelli, T.L.; Molin, J.P. [Escola Superior de Agricultura Luiz Queiroz (ESALQ/USP), Piracicaba, SP (Brazil). Dept. de Engenharia de Biossistemas], Email: andrecolaco@usp.br; Povh, F.P. [Fundacao ABC Pesquisa e Desenvolvimento Agropecuario, Castro, PR (Brazil)

    2011-07-01

    Precision Agriculture (PA) is a technique that can reduce the inputs utilization in agriculture production, including the nitrogen fertilizer consume. Great importance is given to this fertilizer, due to its contribution on energy input in agriculture. Methodologies based on the calculation of energy flow of agriculture systems are capable to identify management practices that use energy more efficiently. So, this study's objective is to evaluate the variable-rate nitrogen fertilization on wheat, using energy assessment. This study was carried on in two wheat fields, in which the fertilization was done adopting strips alternated by conventional method (single nitrogen dose) and by nitrogen variable-rate technology. Thus, the input and output energy in the system, energy balance, energy return on investment (EROI) and incorporated energy were determined for each geo-referenced point within the fields. Results showed that less energy was demanded when using variable-rate technology, due to the nitrogen saving, providing greater energy balance, EROI and lower incorporated energy on the areas managed using PA. The energy assessment showed to be an important tool to evaluate systems that use PA, because it is capable of monitoring crops energy potential. (author)

  20. Pipeline integrity management using Monte Carlo simulation; A aplicacao do metodo de Monte Carlo no gerenciamento da integridade de dutos

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, Claudio; Costa, Artur; Bittencourt, Euclides [TRANSPETRO - PETROBRAS Transporte, Rio de Janeiro, RJ (Brazil)

    2005-07-01

    Due to the growing relevance of safety and environmental protection policies in PETROBRAS and its subsidiaries, as well as official regulatory agencies and population requirements, integrity management of oil and gas pipelines became a priority activity in TRANSPETRO, involving several sectors of the company's Support Management Department. Inspection activities using intelligent PIGs, field correlations and replacement of pipeline segments are known as high cost operations and request complex logistics. Thus, it is imperative the adoption of management tools that optimize the available resources. This study presents Monte Carlo simulation method as an additional tool for evaluation and management of pipeline structural integrity. The method consists in foreseeing future physical conditions of most significant defects found in intelligent PIG In Line Inspections based on a probabilistic approach. Through Monte Carlo simulation, probability functions of failure for each defect are produced, helping managers to decide which repairs should be executed in order to reach the desired or accepted risk level. The case that illustrates this study refers to the reconditioning of ORSOL 14'' (35,56 mm) pipeline. This pipeline was constructed to transfer petroleum from Urucu's production fields to Solimoes port, in Coari, city in Brazilian Amazon Region. The result of this analysis indicated critical points for repair, in addition to the results obtained by the conventional evaluation (deterministic ASME B-31G method). Due to the difficulties to mobilize staff and execute necessary repairs in remote areas like Amazon forest, the probabilistic tool was extremely useful, improving pipeline integrity level and avoiding future additional costs. (author)

  1. Techniques for contact and contact with friction problems; Tecnicas para problemas de contacto y contacto con friccion

    Energy Technology Data Exchange (ETDEWEB)

    Velandia Arana, Gonzalo [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1990-12-31

    Different numerical techniques are presented based in the finite element method to obtain numerical solutions to contact and contact with friction problems between solid bodies, and compared between each other. [Espanol] Se presentan diferentes tecnicas numericas basadas en el metodo de elementos finitos para la obtencion de soluciones numericas de problemas de contacto y contacto con friccion entre cuerpos solidos, y se comparan entre si.

  2. Techniques for contact and contact with friction problems; Tecnicas para problemas de contacto y contacto con friccion

    Energy Technology Data Exchange (ETDEWEB)

    Velandia Arana, Gonzalo [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1989-12-31

    Different numerical techniques are presented based in the finite element method to obtain numerical solutions to contact and contact with friction problems between solid bodies, and compared between each other. [Espanol] Se presentan diferentes tecnicas numericas basadas en el metodo de elementos finitos para la obtencion de soluciones numericas de problemas de contacto y contacto con friccion entre cuerpos solidos, y se comparan entre si.

  3. Aquaculture investigations with nuclear energy techniques; Investigaciones acuicolas con tecnicas de energia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Heredia Salazar, Brunilda [Fondo Nacional de Investigaciones Agropecuarias (FONAIAP), (CIAE), Estacion Experimental Guanapito, Guarico (Venezuela)

    1997-07-01

    acuaticos y especialmente de peces bajo condiciones controladas hasta su cosecha, procesamiento, comercializacion y consumo ha sido senalado como una actividad que produce numerosos beneficios, entre los que destacan la obtencion de alimento de alto valor proteico, la incorporacion a la economia de tierras no aptas para la agricultura, el incremento de los recursos pesqueros, el reciclaje de materia organica producida en las unidades, el desarrollo regional, la generacion de empleos, tecnologias y divisas. Se identifican varias areas de investigacion que pueden ser desarrolladas, utilizando las tecnologias nucleares, como por ejemplo en la reproduccion, nutricion, diagnostico y control de enfermedades, monitoreo ambiental y certificacion de la calidad de productos. En lo concerniente a nuestra acuicultura, se requieren investigaciones que ameritan el uso de estas tecnicas. Por ejemplo: 1) Produccion de agentes inductores autoctonos, mediante radioinmunoensayos (RIA) para determinar la actividad de las gonadotropinas provenientes de las hipofisis de los peces cultivados con la finalidad de recolectar las glandulas en el momento optimo, desencadenantes de la maduracion final y desove en especies autoctonas. 2) Mejoramiento genetico de especies cultivadas a traves del conocimiento de la carga genetica de diferentes lineas y razas encontradas en el medio natural y lograr su mantenimiento para resolver los problemas de endogamia, tanto en especies autoctonas como exoticas, con el uso de tecnicas de marcaje del ADE, RFLA y tecnicas de microsatelites. 3) Estudios nutricionales y de alimentacion de las especies sometidas a cultivo comercial, especialmente sobre el efecto de las aflatoxinas sobre los insumos o la racion, sustancias que influyen negativamente en la nutricion acuicola. En este caso se usan inmunoensayos competitivos de enzimas ligadas (ELISA) y radioinmunoensayos. 4) Diagnostico de enfermedades, mediante el kit ELISA, especificamente de las enfermedades mas comunes

  4. Diagnosis technique for the detection of mechanical faults in power breakers; Tecnica de diagnostico para la deteccion de fallas mecanicas en interruptores de potencia

    Energy Technology Data Exchange (ETDEWEB)

    Linan, Roberto; Perez, Marciano; Estrada, J. Manuel [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1996-12-31

    This article reports a non-invasive diagnosis technique for the detection of mechanical faults in power breakers, supporting it with the recording and analysis of vibration signals of the equipment under test. Also, an assessment of four breakers using this technique is presented. [Espanol] En el presente articulo se reporta una tecnica de diagnostico no invasiva para detectar fallas mecanicas en interruptores de potencia, apoyandose en el registro y analisis de senales de vibracion del equipo bajo prueba. Asimismo, se presenta la evaluacion de cuatro interruptores usando esta tecnica.

  5. Diagnosis technique for the detection of mechanical faults in power breakers; Tecnica de diagnostico para la deteccion de fallas mecanicas en interruptores de potencia

    Energy Technology Data Exchange (ETDEWEB)

    Linan, Roberto; Perez, Marciano; Estrada, J Manuel [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1997-12-31

    This article reports a non-invasive diagnosis technique for the detection of mechanical faults in power breakers, supporting it with the recording and analysis of vibration signals of the equipment under test. Also, an assessment of four breakers using this technique is presented. [Espanol] En el presente articulo se reporta una tecnica de diagnostico no invasiva para detectar fallas mecanicas en interruptores de potencia, apoyandose en el registro y analisis de senales de vibracion del equipo bajo prueba. Asimismo, se presenta la evaluacion de cuatro interruptores usando esta tecnica.

  6. Techniques of thermal energy conservation; Tecnicas de conservacion de la energia termica

    Energy Technology Data Exchange (ETDEWEB)

    Caltenco Estevez, Juan Luis; Roblez Lopez, Francisco; Ceballos Serna, Andres Alberto [Instituto Mexicano del Petroleo (Mexico)

    1996-07-01

    In modern industry the thermal energy is the energy more intensely used, which implies that in the processes and equipment that operate based on it, rely the greatest opportunities for saving . In this paper some saving and conservation techniques of thermal energy, which nowadays have been developed, are presented, whose application has helped to the successful attainment of the objectives of increased productivity of industrial plants, with the additional benefit of reducing the environmental impact of the production activities. [Spanish] En la industria moderna la energia termica es la forma de energia mas intensamente utilizada, lo cual implica que en los procesos y equipos que operan basandose en esta, residan las mayores oportunidades de ahorro. En este trabajo se presentan algunas de las tecnicas de ahorro y conservacion de energia termica, que hoy en dia se han desarrollado, cuya aplicacion ha coadyuvado a la consecucion exitosa de los objetivos de incremento de la productividad de plantas industriales, con el beneficio adicional de reducir el impacto ambiental de las actividades productivas.

  7. Application techniques of coatings by thermal projection; Tecnicas de aplicacion de recubrimientos por proyeccion termica

    Energy Technology Data Exchange (ETDEWEB)

    Porcayo Calderon, Jesus [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1995-12-31

    The coatings applied by thermal projection have an important number of applications in different industries (chemical, oil, electric, nuclear, etc.). The main purpose of the protection by means of coatings is to alter the surface characteristics of a component so as to resist corrosive environments, abrasion and erosion, among others. The coatings can be applied by different methods, but due to the fact that its characteristics appreciably differ from the base metal, it is important the knowledge of its properties when a coating is selected for a specific use. In this article the characteristics of the applied coatings by thermal projection, the factors that affect its performance and the principal application techniques, are described. [Espanol] Los recubrimientos aplicados por proyeccion termica tienen un numero importante de aplicaciones en diferentes industrias (quimica, petrolera, electrica, nuclear, etc.). El proposito principal de la proteccion por medio de recubrimientos es alterar las caracteristicas de la superficie de un componente de manera que resista ambientes corrosivos, abrasion y erosion, entre otros. Los recubrimientos pueden aplicarse por diferentes metodos, pero debido a que sus propiedades difieren apreciablemente de las del metal base, es importante el conocimiento de sus propiedades cuando se selecciona un recubrimiento para un uso especifico. En este articulo se describen las caracteristicas de los recubrimientos aplicados por proyeccion termica, los factores que afectan su desempeno y las principales tecnicas de aplicacion.

  8. Application techniques of coatings by thermal projection; Tecnicas de aplicacion de recubrimientos por proyeccion termica

    Energy Technology Data Exchange (ETDEWEB)

    Porcayo Calderon, Jesus [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1996-12-31

    The coatings applied by thermal projection have an important number of applications in different industries (chemical, oil, electric, nuclear, etc.). The main purpose of the protection by means of coatings is to alter the surface characteristics of a component so as to resist corrosive environments, abrasion and erosion, among others. The coatings can be applied by different methods, but due to the fact that its characteristics appreciably differ from the base metal, it is important the knowledge of its properties when a coating is selected for a specific use. In this article the characteristics of the applied coatings by thermal projection, the factors that affect its performance and the principal application techniques, are described. [Espanol] Los recubrimientos aplicados por proyeccion termica tienen un numero importante de aplicaciones en diferentes industrias (quimica, petrolera, electrica, nuclear, etc.). El proposito principal de la proteccion por medio de recubrimientos es alterar las caracteristicas de la superficie de un componente de manera que resista ambientes corrosivos, abrasion y erosion, entre otros. Los recubrimientos pueden aplicarse por diferentes metodos, pero debido a que sus propiedades difieren apreciablemente de las del metal base, es importante el conocimiento de sus propiedades cuando se selecciona un recubrimiento para un uso especifico. En este articulo se describen las caracteristicas de los recubrimientos aplicados por proyeccion termica, los factores que afectan su desempeno y las principales tecnicas de aplicacion.

  9. Modern techniques for the emissions control in thermal electric stations; Tecnicas modernas para el control de emisiones en centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Romo Millares, C. A. [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1995-12-31

    This paper presents the techniques and the control equipment for emissions in thermal stations that have the highest possibilities of being considered in the immediate future in the national energy panorama and the established frame for the environmental normativity. The pollutant compounds subject to revision are the nitrogen and sulfur oxides and unburned particles. [Espanol] Se presentan las tecnicas y equipos de control de emisiones para centrales termoelectricas que tienen mayores posibilidades de ser consideradas en el futuro inmediato dentro del panorama energetico nacional y el marco establecido por la normatividad ambiental. Los compuestos contaminantes sujetos a revision son los oxidos de nitrogeno y azufre y las particulas inquemadas.

  10. Modern techniques for the emissions control in thermal electric stations; Tecnicas modernas para el control de emisiones en centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Romo Millares, C A [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1996-12-31

    This paper presents the techniques and the control equipment for emissions in thermal stations that have the highest possibilities of being considered in the immediate future in the national energy panorama and the established frame for the environmental normativity. The pollutant compounds subject to revision are the nitrogen and sulfur oxides and unburned particles. [Espanol] Se presentan las tecnicas y equipos de control de emisiones para centrales termoelectricas que tienen mayores posibilidades de ser consideradas en el futuro inmediato dentro del panorama energetico nacional y el marco establecido por la normatividad ambiental. Los compuestos contaminantes sujetos a revision son los oxidos de nitrogeno y azufre y las particulas inquemadas.

  11. La scrittura è antiquata. Una prospettiva ermeneutica sulla genesi e destino del grafismo nell'epoca della tecnica

    Directory of Open Access Journals (Sweden)

    Lorenzo De Stefano

    2014-12-01

    Partendo dalle tesi di McLuhan e di André Leroi-Gourhan secondo cui la storia dell'evoluzione umana è la storia integrata delle tecniche e dei linguaggi rapportata alle prospettive filosofiche sulla tecnica di Günther Anders, Arnold Gehlen e Martin Heidegger, si analizzano i mutamenti antropologici in relazione alle rivoluzioni mass mediali dalla comparsa del grafismo ai “mass media della terza ondata”. Sulla scorta di tali analisi, si prova infine a indagare e delineare una prospettiva etica della civiltà tecnologica in relazione al corretto uso e comprensione dei nuovi mass media.

  12. Crioterapia no pos-parto: tempo de aplicacao e mudancas na temperatura perineal

    OpenAIRE

    Adriana Amorim Francisco; Sonia Maria Junqueira Vasconcellos de Oliveira; Lucila Coca Leventhal; Caroline de Souza Bosco

    2013-01-01

    Estudo descritivo com dados de dois ensaios clínicos realizados em 2008 e 2009 em uma maternidade de uma instituição filantrópica da cidade de São Paulo. Teve como objetivo descrever a temperatura perineal após a aplicação de bolsa de gelo no pós-parto normal. Três grupos com 38 puérperas cada (n=114) receberam aplicação perineal de bolsa de gelo entre 2 e 48h após o parto. Os achados indicaram que com 10 min de crioterapia as médias da temperatura perineal atingiram de 13,3 a 15,3oC, com peq...

  13. Human error probability quantification using fuzzy methodology in nuclear plants; Aplicacao da metodologia fuzzy na quantificacao da probabilidade de erro humano em instalacoes nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Nascimento, Claudio Souza do

    2010-07-01

    This work obtains Human Error Probability (HEP) estimates from operator's actions in response to emergency situations a hypothesis on Research Reactor IEA-R1 from IPEN. It was also obtained a Performance Shaping Factors (PSF) evaluation in order to classify them according to their influence level onto the operator's actions and to determine these PSF actual states over the plant. Both HEP estimation and PSF evaluation were done based on Specialists Evaluation using interviews and questionnaires. Specialists group was composed from selected IEA-R1 operators. Specialist's knowledge representation into linguistic variables and group evaluation values were obtained through Fuzzy Logic and Fuzzy Set Theory. HEP obtained values show good agreement with literature published data corroborating the proposed methodology as a good alternative to be used on Human Reliability Analysis (HRA). (author)

  14. 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)

  15. 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)

  16. Application of monitoring techniques of operational parameters for the implementation of preventive and predictive maintenance programs to gas turbines; Aplicacion de tecnicas de monitoreo de parametros operacionales para la implantacion de programas de mantenimiento predictivo y preventivo en turbinas de gas

    Energy Technology Data Exchange (ETDEWEB)

    Gutierrez Villareal, Julio Cesar

    1998-12-31

    describen las tecnicas para el mantenimiento predictivo: El capitulo tres, da a conocer algunas de las capacidades del analisis de vibraciones e ilustra la metodologia empleada para la identificacion de las fuentes de vibracion y tecnicas de diagnostico. El capitulo cuatro, describe algunas tecnicas de evaluacion no destructiva que se utilizan en componentes de la turbina de gas. Estas tecnicas son: Pruebas de dureza, inspeccion por liquidos penetrantes, particulas magneticas y evaluacion metalografica. El capitulo cinco, describe la forma y uso de la inspeccion boroscopica, para analisis del rotor y los alabes de la turbina de gas. El capitulo 6, muestra los resultados y recomendaciones del analisis por vibraciones, realizadas a las turbinas de gas.

  17. Determinação de amlodipina atraves da tecnica LC-MS-MS em estudo de bioequivalencia

    OpenAIRE

    Andreia Maria Lopes Guermani Orives

    2004-01-01

    Resumo: O objetivo deste estudo foi avaliar a bioequivalência de duas formulações de amlodipina em comprimidos ( Amlodipina® 5 mg comprimidos, Laboratório Teuto Brasileiro Ltda., formulação teste e Norvasc ® 5 mg, Laboratórios Pfizer Ltda., como referência ) após administração oral a 24 voluntários adultos sadios de ambos os sexos. O estudo foi aberto, randomizado com duas fases, onde os voluntários receberam uma dose única de besilato de amlodipina 5 mg. As amostras de plasma foram obtidas e...

  18. Crioterapia no pos-parto: tempo de aplicacao e mudancas na temperatura perineal

    Directory of Open Access Journals (Sweden)

    Adriana Amorim Francisco

    2013-06-01

    Full Text Available Estudo descritivo com dados de dois ensaios clínicos realizados em 2008 e 2009 em uma maternidade de uma instituição filantrópica da cidade de São Paulo. Teve como objetivo descrever a temperatura perineal após a aplicação de bolsa de gelo no pós-parto normal. Três grupos com 38 puérperas cada (n=114 receberam aplicação perineal de bolsa de gelo entre 2 e 48h após o parto. Os achados indicaram que com 10 min de crioterapia as médias da temperatura perineal atingiram de 13,3 a 15,3oC, com pequena redução de temperatura ao final de aplicações de 15 e 20 minutos (2,4 e 2,7o, respectivamente. Após resfriamento por 10 min., as mulheres referiram frio e alívio e, depois de 15 a 20 min., dormência e anestesia local. Conclui-se que 10 minutos de aplicação foram suficientes para reduzir a temperatura perineal aos níveis recomendados para analgesia (10-15oC.

  19. Determinacion del N y P en abonos organicos mediante la tecnica del elemento faltante y un bioensayo microbiano

    Directory of Open Access Journals (Sweden)

    Eduardo Salas

    2001-01-01

    Full Text Available Mediante la tecnica del elemento faltante en ferinvernadero y el uso de un bioensayo microbiano se determin6 la disponibilidad de N y P en 6 sus- greenhoutratos: suelo s6lo 0 en mezcla 9: 1 con diversos abo- nos organicos, a saber: pollinaza (CM, compost (C, bocashi (B, vermicompost (V 0 broza de ca- determife (Br. En ambos bioensayos y para cada sustrato se realiz6 un experimento factorial 2x2 (fertiliza- ci6n con P y N; las combinaciones resultantes fue- ron: +P, +N, +P+N y -P-N (testigo. En el bioensa- yo microbiano se utiliz6 un diseno de bloques al azar con 6 repeticiones y se midi6 el crecimiento microde la biomasa microbiana nativa (BM 2 dias des- pues de aplicar el tratamiento e incubar con gluco- sa. En la prueba de invernadero se utiliz6 un dise- no completamente al azar con 4 repeticiones, se utiliz6 sorgo (Sorghum vulgare como planta indi- cadora. Se midi6 el peso seco de la parte aerea de lasplantas a los 34 dias de la siembra (PS y el con- tenido foliar de nutrimentos. Ambos bioensayos in- sordicaron respuesta del suelo a la aplicaci6n de P y N. La mezcla del suelo con un 10% de CM, CoB mostraron los valores mas altos de BM y PS. La mezcla suelo:CM no respondi6 a ningun tratamien- to qufmico, mientras que en mezcla con el C 0 el B respondi6 a la aplicaci6n de N pero no al P. Con el Vola Br se obtuvo las menores respuestas de las variables y hubo respuesta ala adici6n de P y N. La tecnica del elemento faltante de invernadero

  20. Analysis methodology for economic technical feasibility studies in offshore electrical generation systems; Metodologia de analisis para estudios de factibilidad tecnica economica en sistemas de generacion electrica costa fuera

    Energy Technology Data Exchange (ETDEWEB)

    Fiscal Escalante, Raul [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2007-07-01

    An analysis methodology followed in the development of technique-economic feasibility studies of systems of electrical generation in offshore electrical installations is presented, including the obtaining of the curves of the turbine and generator performance, the technical considerations for the formulation of the operation scenes and the calculations of the economic evaluation of a real scenario. [Spanish] Se muestra una metodologia de analisis seguida en el desarrollo de estudios de factibilidad tecnica-economica de sistemas de generacion electrica en instalaciones electricas costa fuera, incluyendo la obtencion de las curvas de comportamiento de la turbina y el generador, las consideraciones tecnicas para la formulacion de los escenarios de operacion y los calculos de la evaluacion economica de un escenario real.

  1. Foreseeing techniques and control of emissions in thermal power plants. Workshop Latin American. [Selected Papers]; Control y tecnicas de prevision de las emisiones de centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Saldana, R.; Morales, F.; Urrutia, M. [eds.] [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1996-12-31

    This document contains the conference proceedings of the Latin-American Workshop ``Control and Prevision Techniques of Emissions in Power Plants`` carried out in Cuernavaca, Mexico on June 1996, with the participation of representatives of Argentina, Chile, Guatemala, Colombia, Ecuador, Mexico, Nicaragua, Panama and Venezuela, as well as specialists from the European Union. The core issue analyzed in this workshop was the control and the evaluation techniques of polluting emissions in Power Plants [Espanol] Este documento contiene las memorias de conferencia del Taller Latinoamericano ``Control y tecnicas de prevision de las emisiones de centrales termoelectricas`` que se llevo a cabo en Cuernavaca, Mexico en junio de 1996. Participaron representantes de Argentina, Chile, Guatemala, Colombia, Ecuador, Mexico, Nicaragua, Panama y Venezuela, asi como especialistas de la Union Europea. El tema central tratado en este taller fue el control y tecnicas de evaluacion de las emisiones contaminantes en centrales termoelectricas

  2. Foreseeing techniques and control of emissions in thermal power plants. Workshop Latin American. [Selected Papers]; Control y tecnicas de prevision de las emisiones de centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Saldana, R; Morales, F; Urrutia, M [eds.; Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1997-12-31

    This document contains the conference proceedings of the Latin-American Workshop ``Control and Prevision Techniques of Emissions in Power Plants`` carried out in Cuernavaca, Mexico on June 1996, with the participation of representatives of Argentina, Chile, Guatemala, Colombia, Ecuador, Mexico, Nicaragua, Panama and Venezuela, as well as specialists from the European Union. The core issue analyzed in this workshop was the control and the evaluation techniques of polluting emissions in Power Plants [Espanol] Este documento contiene las memorias de conferencia del Taller Latinoamericano ``Control y tecnicas de prevision de las emisiones de centrales termoelectricas`` que se llevo a cabo en Cuernavaca, Mexico en junio de 1996. Participaron representantes de Argentina, Chile, Guatemala, Colombia, Ecuador, Mexico, Nicaragua, Panama y Venezuela, asi como especialistas de la Union Europea. El tema central tratado en este taller fue el control y tecnicas de evaluacion de las emisiones contaminantes en centrales termoelectricas

  3. Electrochemical techniques application in corrosion problems of fossil power plants; Aplicacion de tecnicas electroquimicas en problemas de corrosion en centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Cano Castillo, Ulises; Garcia Ochoa, Esteban Miguel; Martinez Villafane, Alberto; Mariaca Rodriguez, Liboria; Malo Tamayo, Jose Maria; Uruchurtu Chavarin, Jorge [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1990-12-31

    Some aspects of the electrochemical techniques employed to evaluate the corrosion at low temperature in fossil power plants are commented, as well as the results obtained with the application of them in three power plants of this type. [Espanol] Se comentan algunos aspectos de tecnicas electroquimicas utilizadas para evaluar la corrosion en baja temperatura en centrales termoelectricas, asi como los resultados de la aplicacion de las mismas en tres centrales de este tipo.

  4. Electrochemical techniques application in corrosion problems of fossil power plants; Aplicacion de tecnicas electroquimicas en problemas de corrosion en centrales termoelectricas

    Energy Technology Data Exchange (ETDEWEB)

    Cano Castillo, Ulises; Garcia Ochoa, Esteban Miguel; Martinez Villafane, Alberto; Mariaca Rodriguez, Liboria; Malo Tamayo, Jose Maria; Uruchurtu Chavarin, Jorge [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1991-12-31

    Some aspects of the electrochemical techniques employed to evaluate the corrosion at low temperature in fossil power plants are commented, as well as the results obtained with the application of them in three power plants of this type. [Espanol] Se comentan algunos aspectos de tecnicas electroquimicas utilizadas para evaluar la corrosion en baja temperatura en centrales termoelectricas, asi como los resultados de la aplicacion de las mismas en tres centrales de este tipo.

  5. Technique applied in the evaluation of the UFCC reactor at Refinaria Alberto Pasqualini (REFAP), PETROBRAS; Tecnicas utilizadas na avaliacao do reator da UFCC da REFAP

    Energy Technology Data Exchange (ETDEWEB)

    Cascaes, Ronesio da Silva [PETROBRAS (Brazil) Refinaria Alberto Pasqualini

    1994-01-01

    Main problems found in the maintenance of the Fluidized Catalytic Cracking (FCC) unity, searches of metal alteration properties, metallographic evaluations, failures and micro-structures alterations are presented. Micrographic analysis of the structural samples, the methodology to detect the failures and physical and chemical essays utilized in the inspection are also reported 13 refs., 64 figs., 1 tab.

  6. Technical Cooperation Report for 2004. Report by the Director General; Informe de Cooperacion Tecnica para 2004. Informe del Director General

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-08-15

    than $10 million for the second year in a row. This provided support to 17% of the approved footnote-a/ programme for 2004. In addition, receipt in 2004 of $8.1 million against earlier target years allowed the Secretariat to reinstate, during the second quarter of the year, programme budgets which had been curtailed as a result of the lower than expected resources received in 2003. During the year, the Secretariat has been heavily involved in a review of TC processes, with a view to streamline and strengthen them. The main part of the change process is planned to be completed in 2005. While the implementation rate for the programme dropped four percentage points to 68%, compared with 2003, the total disbursements for the programme in 2004 were slightly higher than in 2003 by nearly $120 000. A further challenge to the programme has been the replacement of assessed programme costs with national participation costs as approved by the Board of Governors in 2004. (author) [Spanish] En el Informe de cooperacion tecnica para 2004 se destacan las actividades y los logros del programa de cooperacion tecnica en el ultimo ano. Durante 2004, la Secretaria ultimo el programa de cooperacion tecnica para el bienio 2005-2006 que la Junta de Gobernadores aprobo en noviembre de 2004. En relacion con el programa para 2005-2006, se llevo a cabo un proceso revisado de evaluacion de los proyectos que aporto informacion adicional en cuanto al compromiso de los gobiernos, las capacidades nacionales, los indicadores de ejecucion de los proyectos y los resultados de esos proyectos. En el bienio 2005-2006 se incluye un programa fortalecido de mejoramiento de la infraestructura de proteccion radiologica. La Secretaria utilizo la experiencia acumulada en los ultimos diez anos, asi como las conclusiones de las evaluaciones, para crear un programa que se basase en los exitos y las ensenanzas deducidas a fin de garantizar el uso seguro de la tecnologia nuclear en el marco de infraestructuras

  7. Computação evolutiva aplicada a resolução do problema da arvore geradora minima com parametros fuzzy

    OpenAIRE

    Tiago Agostinho de Almeida

    2006-01-01

    Resumo: Este trabalho propoe meta-heurýsticas baseadas em tecnicas da computaçao evolutiva, que visam encontrar um conjunto de arvores geradoras mýnimas para problemas de grafos, que possuem incertezas em relaçao as informaçoes associadas aos parametros. Resolver problemas dessa natureza e um processo NP-Completo, pois envolve um numero enorme de comparaçoes. A fim de contornar essa complexidade, este trabalho propoe um algoritmo genetico e um sistema imunologico artificial, capazes de explo...

  8. Nova tecnica de estimacao de fasores na presenca de decaimento DC exponencial em sistemas de potencia

    NARCIS (Netherlands)

    Vianello, R.; Silva, L.R.M.; Duque, C.A.; Serqueira, A.S.; Ribeiro, M.V.; Silveira, P.M.; Ribeiro, P.F.

    2009-01-01

    O presente trabalho apresenta uma nova metodologia de estimação de fasores na presença de decaimento DC exponencial e de harmônicos ímpares no sinal. As estimações são realizadas em meio ciclo mais três amostras da componente fundamental do sistema. O método é baseado na estimação dos parâmetros do

  9. Measurement and control techniques for electric equipment development; Tecnicas de medicion y control para el desarrollo de equipos electricos

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz Neblina, Joaquin [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1988-12-31

    In broad outlines the measuring and control techniques that are used in the electric equipment development in the short circuit laboratories, are described. In this article the utilization criteria of the traditional and modern (analogical and digital) instruments are described as well as the tendency towards the system`s integration for the automation of the measurement and control processes. Also, mention is made of the systems currently being developed at the Instituto de Investigaciones Electricas (IIE) to be applied at the Short Circuit Laboratories of Comision Federal de Electricidad (CFE) and of the IIE. [Espanol] Se describen a grandes rasgos las tecnicas de medicion y control que se emplean para el desarrollo de equipos electricos en los laboratorios de corto circuito. En este articulo se describen los criterios de utilizacion de los instrumentos tradicionales y modernos (analogicos y digitales), asi como la tendencia hacia la integracion de sistemas para la automatizacion de los procesos de medicion y control. Tambien se mencionan los sistemas que actualmente se desarrollan en el Instituto de Investigaciones Electricas (IIE) para aplicarlos en los Laboratorios de Corto Circuito de la Comision Federal de Electricidad (CFE) y del Instituto.

  10. Measurement and control techniques for electric equipment development; Tecnicas de medicion y control para el desarrollo de equipos electricos

    Energy Technology Data Exchange (ETDEWEB)

    Ruiz Neblina, Joaquin [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1987-12-31

    In broad outlines the measuring and control techniques that are used in the electric equipment development in the short circuit laboratories, are described. In this article the utilization criteria of the traditional and modern (analogical and digital) instruments are described as well as the tendency towards the system`s integration for the automation of the measurement and control processes. Also, mention is made of the systems currently being developed at the Instituto de Investigaciones Electricas (IIE) to be applied at the Short Circuit Laboratories of Comision Federal de Electricidad (CFE) and of the IIE. [Espanol] Se describen a grandes rasgos las tecnicas de medicion y control que se emplean para el desarrollo de equipos electricos en los laboratorios de corto circuito. En este articulo se describen los criterios de utilizacion de los instrumentos tradicionales y modernos (analogicos y digitales), asi como la tendencia hacia la integracion de sistemas para la automatizacion de los procesos de medicion y control. Tambien se mencionan los sistemas que actualmente se desarrollan en el Instituto de Investigaciones Electricas (IIE) para aplicarlos en los Laboratorios de Corto Circuito de la Comision Federal de Electricidad (CFE) y del Instituto.

  11. Ion nitriding post-oxidation as an alternative technique to electrolytic chromium; Nitruracion post-oxidacion ionica como tecnica alternativa al cromado electrolitico

    Energy Technology Data Exchange (ETDEWEB)

    Diaz-Guillen, J. C.; Granda-Gutierrez, E.E.; Campa-Castilla, A.; Perez-Aguilar, S.I.; Garza-Gomez, A.; Candelas-Ramirez, J.; Mendez-Mendez, R. [COMIMSA. Corporacion Mexicana de Investigacion en Materiales S.A. de C.V., Saltillo, Coahuila (Mexico)]. E-mail: jcarlos@comimsa.com

    2010-11-15

    The effect of temperature and processing time during post-oxidation on hardness and corrosion resistance of AISI 1045 samples treated through nitriding and post-oxidation in a pulsed plasma discharge is evaluated in this paper. Also, a comparative analysis of the mechanical properties obtained with the dual nitriding - post oxidation process versus those properties of typical hard chrome coatings was performed with an aim to propose an alternative technique to the processes of galvanic coatings. The latter revealed that the process of ion nitriding and post-oxidation provides similar properties in hardness and improves the corrosion resistance compared to the hard chrome case. It is conclude that the technique of ion nitriding and post-oxidation is a non environmental harmful technology with strong potential to replace highly polluting electroplating techniques for application of hard chrome coatings. [Spanish] En el presente trabajo se evalua el efecto del tiempo y la temperatura de post-oxidacion sobre las propiedades de dureza y resistencia a la corrosion de muestras de acero AISI 1045 sometido al proceso de nitruracion post-oxidacion ionica en plasmas pulsados. Asi mismo, con el objetivo de fundamentar la propuesta de utilizacion de la nitruracion post-oxidacion ionica como una tecnica alternativa a los procesos galvanicos para aplicacion de recubrimientos de cromo duro, se realizo un analisis comparativo de propiedades, evidenciando que, mediante el proceso nitruracion postoxidacion ionica, es posible obtener caracteristicas similares en dureza y mejores en resistencia a la corrosion que las tipicas obtenidas para el cromo duro. Los resultados obtenidos permiten postular una tecnica que no dana al medio ambiente, como lo es la nitruracion post-oxidacion ionica, como candidata potencial para sustituir las tecnicas galvanicas altamente contaminantes para aplicacion de cromo duro.

  12. Study for application of multi fuel technology in the Brazilian automobilistic market; Estudo para aplicacao da tecnologia multi combustivel no mercado automobilistico brasileiro

    Energy Technology Data Exchange (ETDEWEB)

    Gasparotto, Alexsander David [FIAT/GM Powertrain (Brazil); Massarani, Marcelo [Universidade de Sao Paulo (USP), SP (Brazil)

    2006-07-01

    The objective of this work is a study for the application of a new technology that will be used in the engine management system in the vehicle; where the final consumer can opt for the inquiry performance or seeking an economy for the fuel consumption depending on its daily use and of the prices offered in the gas stations. Flexible Fuel is a technology in development for the automobile market that mixes the use of two fuels (gasoline and ethanol) and their mixtures in the internal combustion engine. (author)

  13. Study of virtual reality application in training programs on nuclear technology; Estudo da aplicacao de realidade virtual em programas de treinamento sobre tecnologia nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Pastura, Valeria da Fonseca e Silva

    2016-07-01

    The activities developed in the units which organize the National Nuclear Energy Commission (CNEN) are present in various sectors of the Brazilian society, being them in medicine, industry, electricity generation, mining, and among the others. Based on the assumption that the employees are CNEN's mayor differential and the training programs play an important role in the process of organizational development, because they align the professionals with the strategies of the institution properly. Focusing on these matters, this master's thesis aimed to evaluate the training programs which are applied by CNEN, in order to propose and evaluate the use of the Virtual Reality (VR) expertise as a new method to be applied in the training programs. To accomplish this purpose, we performed two methodological approaches through questionnaires. And from the analysis of the results obtained, we could realize that there was no efficient training program which is systematically applied by CNEN, and the use of the RV technique improves the training programs in the understanding of themes whose assimilation is challengeable, such as those related to nuclear power. In this sense, for a better functional performance, the training programs adopted by CNEN must be structured so as to enable the development of each server's skills as well as abilities and, it is actually hoped that the virtual reality tools could be inserted in these programs to pursue only this purpose. (author)

  14. Artificial intelligence applied to natural products; computer study of pimarane diterpene. Aplicacao da inteligencia artificial em quimica de produtos naturais: estudo, por computador, dos diterpenos pimaranicos

    Energy Technology Data Exchange (ETDEWEB)

    Lopes, M N; Borges, J H.G.; Furlan, M; Gastmans, J P [UNESP, Araraquara, SP (Brazil). Dept. de Quimica Organica; Emerenciano, V de [Sao Paulo Univ., SP (Brazil). Dept. de Quimica Organica

    1989-01-01

    This paper describes the study of the sup(13)C NMR characteristic signals of naturally occurring pimarane. The analysis is performed by computer, starting from a data base which encloses about 400 diterpenes and using the PICKUPS programm. By this way it is possible to analyse substructure from one to five atoms as well as the effects of substituents on them. (author).

  15. Radionecrosis attenuation in wistar rats with cutaneous application of quercetin; Atenuacao da radionecrose em ratos Wistar com aplicacao cutanea de quercetina

    Energy Technology Data Exchange (ETDEWEB)

    Alves, Nelson Mendes

    2016-11-01

    The increased incidence of cancer has been significant in recent decades in the world population, as confirmed by national and international institutions in the health area. The emergence of cancer is influenced, predominantly by genetic and environmental factors, being manifested more in the adult population. The main modalities for cancer treatment (radiotherapy, chemotherapy and surgery) may be used separately or in combination, depending on the type of cancer. Among the methods mentioned, radiation therapy is the one more broadly used for the treatment of patients, having an associated side effect called radiodermatitis, which has degrees of severity ranging from simple erythema to radionecrosis. The manifestation of radiodermatitis may occur during the treatment or after the radiotherapy sessions: both situations have great relevance in the patient's quality of life and social costs. One of the studied alternative therapies for attenuating the radionecrosis is the quercetin cutaneous application. One of the alternative therapies, studied to mitigate or eliminate the radionecrosis, is based on the topical application of quercetin. To evaluate the effectiveness of this mitigation, an animal model of radionecrosis was developed, to be used in Wistar rats. After in vitro studies, the quercetin concentrations and time of application were determined, reducing the number of animals, when in vivo experiments are carried out. With the topical application of 250 μ mol/L of quercetin, one hour prior to gamma irradiation, at a dose of 85 Gy, the side effects of radiation were minimized, avoiding the formation of radionecrosis. There was, also, a tendency to attenuate the wound area in the studied animals, compared to the irradiated animals without the quercetin application. (author)

  16. EPR response characterization of drugs excipients for applying in accident dosimetry; Caracterizacao da resposta RPE dos excipientes dos medicamentos para aplicacao em dosimetria de acidente

    Energy Technology Data Exchange (ETDEWEB)

    Marczewski, Barbara S.; Rodrigues Junior, Orlando; Galante, Ocimar L.; Costa, Zelia M. da; Campos, Leticia L. [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

    2002-07-01

    Some drugs are widely used by the population and can be employed to dose retrospective. The carbohydrates (saccharides), commonly used as excipients in the pharmaceutical industry, produce a quantity of free radicals after gamma irradiation, making them useful for dosimetry in emergency or accident situations that imply in dose evaluation from the materials found nearly or in contact with victims. In general, EPR signal from pulverized pills of some drugs are very complex due to the variety of components in the formulation. Because of this fact, some pharmaceutical excipients identified in the pill composition were also analysed by EPR spectrometry. On the counter drugs were studied: Cebion glucose, AAS, Aspirina, Conmel, Lacto-Purga and sugar substitutive ZeroCal. The excipients were: lactose, amide, anhydrous glucose and magnesium stearate. In some samples the number of radicals produced increased with the dose, showing a linear response for a dose range of interest and an adequate sensibility for dosimetry in accident cases.

  17. Modeling of development and projection of the accumulated recoverable oil volume: methodology and application; Modelagem da evolucao e projecao de volume de oleo recuperavel acumulado: metodologia e aplicacao

    Energy Technology Data Exchange (ETDEWEB)

    Melo, Luciana Cavalcanti de; Ferreira Filho, Virgilio Jose Martins; Rocha, Vinicius Brito [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia (COPPE)

    2004-07-01

    A relevant problem that petroleum companies deal is the estimate of the future levels of reserves The objective of the reserve forecasting is pursued through the construction of mathematical models. Considering that the exploration process is an informed and controlled process, in order to reach the exploration targets, the exploration process is lead inside of a sequence of decisions based on the reached results. Such decisions are taken surrounded by an uncertain environment added to the random nature of the process. Another important assumption that must be taken into consideration is the dependency of the exploration on the conditions, or structure, of the discovered resources and the final potential. The modeling starts with the establishment of a general problem, when the models are being constructed, based on suppositions associated to the main concepts, and ends with the attainment of specific solutions, when the best description, or model, is selected through the estimate of the respective parameters and of the measurement adjustments. The result of this approach reflects the essence of the exploration process and how it is reflected in the incorporation of reserves and history of field discoveries. A case study is used for validation of the models and the estimates. (author)

  18. State-of-the-art of the development and appliance of anaerobic digestion in Brazil; Estagio de desenvolvimento e aplicacao da digestao anaerobica no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Hirata, Yukie Saito; Craveiro, Americo Martins [Instituto de Pesquisas Tecnologicas (IPT), Sao Paulo, SP (Brazil)

    1988-12-31

    This paper presents the up-to-date situation of both research and application of anaerobic digestion in Brazil. Concerning application, rural digesters have accounted around 7520 units and this number is expected to increase very slowly. For anaerobic treatment of industrial and domestic effluents, inversely, a rapid growth is expected for the near future. (author) 9 refs., 3 tabs.

  19. Study of nanostructured clay's application in photoactivated restorative resins, used in dentistry; Estudo da aplicacao de argilas nanoestruturadas em resinas restauradoras fotoativadas, utilizadas em odontologia

    Energy Technology Data Exchange (ETDEWEB)

    Campos, Luiza Melo de Paiva

    2012-07-01

    The problem caused by polymerization shrinkage is critical, because the resin must remain closely in the tooth cavity while gaining rigidity and decrease its dimensions. Forcing the restorative material to distance or to separate the walls of the cavity, the resulting disruption would lead to microleakage, responsible for other problems such as secondary caries, postoperative soreness and may even cause pulpal changes. This process induces the volumetric change of the compound, given by the union of radicals in the formation of the macromolecule (polymer), causing a decrease in volume. This study aimed to develop new experimental composites through the addition of nano components clay minerals in a polymer matrix-based BisGMA / TEGDMA, to evaluate the possibility of a different dimensional behavior during the polymerization. Were used in this study, experimental composites added nanoparticle clay MMT Cloisite 10A (at concentrations of 50, 55, 60, 65 and 70 wt%) and Cloisite 30B (at concentrations of 50, 55, 60 and 65 wt%), which were then compared with the performance of the experimental composites added with micro-particles of silanized silica hybrid Aerosil OX-50 (at concentrations of 50, 60, 65 and 70 wt%). Was used the methods of characterization: Scanning Electron Microscopy (SEM), Thermal-Mechanical Analysis (TMA), Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), Absorption Spectroscopy in the Region of the Infrared (FTIR), X-ray Diffraction (XRD), Micro Hardness Knoop, Holographic Interferometry Technique (HIT), Digital Holography (DH), Correlation Image (CI) and Thermography. It was observed that the experimental composites with nanoparticles added clay Cloisite 10A and Cloisite 30B, performed better on tests that measured the polymerization shrinkage (TMA, HIT/HD/IC) and the micro hardness (Knoop), in relation to composites added with Silica Aerosil OX-50. These results may be related to the interaction polymer/clay and the nano composites formation, observed by XRD analysis. Among the nanoparticles studied, the Cloisite 30B showed the most significant results in relation to the nanoparticle Cloisite 10A and this can be attributed to chemical affinity and polar nature of that nanoparticle. (author)

  20. Study for application of flexible fuel technology in the Brazilian automobile market; Estudo para aplicacao da tecnologia multi combustivel no mercado automobilistico brasileiro

    Energy Technology Data Exchange (ETDEWEB)

    Gasparotto, Alexsander David [FIAT/GM Powertrain (Brazil); Massarani, Marcelo [Sao Paulo Univ., SP (Brazil). Escola Politecnica

    2006-07-01

    The objective of this work is a study for the application of a new technology that will be used in the engine management system in the vehicle; where the final consumer can opt for the inquiry performance or seeking an economy for the fuel consumption depending on its daily use and of the prices offered in the gas stations. Flexible Fuel is a technology in development for the auto mobile market that mixes the use of two fuels (gasoline and ethanol) and their mixtures in the internal combustion engine. (author)

  1. Development of Ti-12Mo-3Nb alloy for biomedical application; Desenvolvimento da liga Ti-12Mo-3Nb para aplicacao biomedica

    Energy Technology Data Exchange (ETDEWEB)

    Panaino, J.V.P.; Gabriel, S.B., E-mail: josevicentepanaino@hotmail.co [Centro Universidade de Volta Redonda (UNIFOA), RJ (Brazil); Mei, P. [Universidade Estadual de Campinas (DEMa/UNICAMP), SP (Brazil). Dept. de Materiais; Brum, M.V. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Programa de Engenharia Metalurgica e de Materiais; Nunes, C.A. [Universidade de Sao Paulo (EEL/USP), Lorena, SP (Brazil). Escola de Engenharia

    2010-07-01

    The titanium alloys are quite satisfactory for biomedical applications due to their physical, mechanical and biological properties. Recent studies focuses on the development of beta type titanium alloys, composed of toxic elements (Nb, Mo, Ta ,...), because they have more advantages than alpha and alpha + beta (Ti- 6Al-4V) alloys such as lower modulus of elasticity, better plasticity and, moreover, the process variables can be controlled to produce selected results. This project focused on the development and characterization of Ti-12Mo-3Nb alloy in the condition 'as cast' and after thermomechanical treatment. The material was characterized in different conditions by X-ray diffraction, optical microscopy, microhardness measurements and elasticity modulus. The results showed that the forged Ti-12Mo-3Nb alloy showed the best combination of properties, being a promising candidate for use as implant. (author)

  2. Method for evaluating the applicability and application rate wastes in soil; Metodo para avaliacao da aplicabilidade e taxa de aplicacao de residuos em solo

    Energy Technology Data Exchange (ETDEWEB)

    Linhares, Monica Moreira [Partime (Brazil); Seabra, Paulo Negrais [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas

    1991-01-01

    Land treatment of refinery solid wastes has been practiced in the last few years by some PETROBRAS refineries. The biodegradation process is dynamic and complex, and incorrect monitoring may destroy the potential of the soil. Due to great differences both in terms of soils and of residues, each case must be monitored individually. We therefore developed a monitoring method for land farming systems based on the impact of the waste on indigenous soil microbial populations. The method is extremely simple, requiring only a gas chromatograph to evaluate the CO{sub 2} evolution, and can detect possible causes for low efficiency biodegradation processes. Conditions should then be altered, to ensure adequate functioning of the system.The method also allows for determination of the applicability of candidate wastes and of acceptable waste application rates in soil. (author) 2 refs., 7 figs.

  3. Application of fuzzy logic in mapping the environmental impacts of hydroelectric power plants; Aplicacao da logica difusa no mapeamento de impactos ambientais em usinas hidreletricas

    Energy Technology Data Exchange (ETDEWEB)

    Melo, M.N.; Lambert-Torres, G.; Silva, L.E. Borges da [Universidade Federal de Itajuba (UNIFEI), MG (Brazil)], Emails: germanoltorres@gmail.com, leborges@unifei.edu.br; Rissino, S.; Silva, M.F. da [Universidade Federal de Rondonia (UFRO), Porto Velho, RO (Brazil)], e-mails: srissino@gmail.com, felipe@unir.br

    2009-07-01

    During the stages prior to installation of a large enterprise, there is an obligation to obtain an environmental license for its effectiveness. However, defining the relevance of an environmental impact generated by changes elapsed in a region, is something subjective, since some variables present qualitative definitions. Aiming to interrelate the variables that influence the environmental impacts in hydroelectric plants, was made the mapping of terms natural resources and degradation of the environment, and its defining variables, based on the theory of fuzzy logic. The construction of fuzzy propositions was based on the manipulation of a rule base, with the 'if' antecedent 'then' consequent structure. It was concluded that the use of fuzzy propositions for the study of environmental impact is an effective method to map the environmental impact caused by construction of a hydroelectric plant, because it defines the degree of influence of impact on the environment.

  4. 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)

  5. Implementation of the fuzzy theory in control of alternative energy generation system; Aplicacao da teoria fuzzy no controle de sistemas de geracao de energias alternativas

    Energy Technology Data Exchange (ETDEWEB)

    Caneppele, Fernando de Lima [Universidade Estadual Paulista (FCA/UNESP), Botucatu, SP (Brazil). Fac. de Ciencias Agronomicas. Curso de Pos-Graduacao em Energia na Agricultura], E-mail: fernando@itapeva.unesp.br; Seraphim, Odivaldo Jose [Universidade Estadual Paulista (FCA/UNESP), Botucatu, SP (Brazil). Fac. de Ciencias Agronomicas. Dept. de Engenharia Rural], E-mail: seraphim@fca.unesp.br

    2010-07-01

    This paper presents the application and use of a methodology based on fuzzy theory and simulates its use in intelligent control of a hybrid system for generating electricity, using solar energy, photovoltaic and wind. When using a fuzzy control system, it reached the point of maximum generation of energy, thus shifting all energy generated from the alternative sources-solar photovoltaic and wind, cargo and / or batteries when its use not immediately. The model uses three variables used for entry, which are: wind speed, solar radiation and loading the bank of batteries. For output variable has to choose which of the batteries of the battery bank is charged. For the simulations of this work is used MATLAB software. In this environment mathematical computational are analyzed and simulated all mathematical modeling, rules and other variables in the system described fuzzy. This model can be used in a system of control of hybrid systems for generating energy, providing the best use of energy sources, sun and wind, so we can extract the maximum energy possible these alternative sources without any prejudice to the environment. (author)

  6. Application of electron beam radiation for peat sterilization and suppression of microbe contaminants; Aplicacao da radiacao por feixe de eletrons como agente esterilizante de microorganismos em substrato turfoso

    Energy Technology Data Exchange (ETDEWEB)

    Tsai, David

    2006-07-01

    Inoculation of root nodule bacteria into legume seeds such as soybean [Glycine max. (L.)], common bean (Phaseolus vulgaris L.) and forage pasture has been effective and convenient as this simple procedure may introduce effective strains of Bradyrhizobium/Rhizobium into agricultural soils without a past history of successful cropping systems with the legume hosts. Peat-based substrates previously sterilized have been used for decades as bacteria carrier, protecting them from the prevailing harsh conditions in tropical soils and ensuring their survival with nutrient and protection against the soil antagonists. The Brazilian Government requires that all peat-based substrates must be gamma-sterilized from a cobalt-60 ({sup 60}Co) source, prior the introduction of the root nodule bacteria into the package. The recommendation is for a dose up to 50 kGy for an effective suppression of pathogens and saprophytes, in order to avoid competition among the substrate microbiota. Recently, the use of the electron beam (EB) accelerator has shown to be a new alternative for peat pre-sterilization, as this technique may promote reactive free-radicals which are efficient to suppress microbial contaminants. This fast technology is considered more environment and ecology friendly-sound than gamma radiation ({gamma}). The disadvantage of not reaching higher depth than gamma rays from {sup 60}Co must be considered, and attempts of optimizing the technique are crucial. This study compared both methods by using increasing rates of radiation by {sup 60}Co by the EB method - O, 10, 20, 30, 40 e 50 kGy in a commercial peat used for inoculants. Experimental data from days 7, 14, 21 and 28 days (growth period) and 150, 180 and 210 days (storage period) indicated high numbers of the strain Rhizobium tropici CM-01, labelled with gusA{sup +} (Study 1) and celB{sup +} (Study 2) from both eat-sterilizing techniques, reaching values above the minimum of 1x10{sup 8} cells g{sup -1} peat. At high rates, above 40 kGy, and after long incubation periods (ex. after 150 days), EB method was more efficient to suppress actinobacteria, one serious antagonist for rhizobia. Strain CM-01 celB{sup +}, data for the period of bacterial growth confirmed the efficiency of the method even at rates as low as 10 kGy. (author)

  7. A high sensibility technique to detect the incipient defects in high tension bushings; Una tecnica de alta sensibilidad para detectar defectos incipientes en boquillas de alta tension

    Energy Technology Data Exchange (ETDEWEB)

    Robles Pimentel, Edgar; Mestizo Rivera, Antolin; Romero Camberos, Ramon [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1996-12-31

    In this article a testing technique to locate incipient faults in transformer bushings is reported, specifically the one related to the internal disconnection of the capacitive tap, which is exemplified with a device having a problem of this kind. [Espanol] En el presente articulo se reporta una tecnica de prueba para localizar fallas incipientes en las boquillas de los transformadores, especificamente la relacionada con la desconexion interna del tap capacitivo, lo cual se ejemplifica con un dispositivo que padece un problema de ese tipo.

  8. A high sensibility technique to detect the incipient defects in high tension bushings; Una tecnica de alta sensibilidad para detectar defectos incipientes en boquillas de alta tension

    Energy Technology Data Exchange (ETDEWEB)

    Robles Pimentel, Edgar; Mestizo Rivera, Antolin; Romero Camberos, Ramon [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1995-12-31

    In this article a testing technique to locate incipient faults in transformer bushings is reported, specifically the one related to the internal disconnection of the capacitive tap, which is exemplified with a device having a problem of this kind. [Espanol] En el presente articulo se reporta una tecnica de prueba para localizar fallas incipientes en las boquillas de los transformadores, especificamente la relacionada con la desconexion interna del tap capacitivo, lo cual se ejemplifica con un dispositivo que padece un problema de ese tipo.

  9. Technical Cooperation Report for 2006. Report by the Director General; Informe de Cooperacion Tecnica para 2006. Informe del Director General

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-15

    programme results. (author) [Spanish] En el periodo objeto de examen el programa de CT realizo importantes progresos. Los nuevos recursos alcanzaron una cota maxima sin precedentes de 101,0 millones de dolares; de ellos, 76,8 millones fueron para el Fondo de Cooperacion Tecnica y se recibieron 22,3 millones como recursos extrapresupuestarios y 1,9 millones en contribuciones en especie. Las nuevas obligaciones netas durante el ano ascendieron a 104,5 millones de dolares, es decir, un incremento de mas del 30% con respecto a 2005. En 2007 se celebra el 50{sup o} aniversario del OIEA, lo que brinda la oportunidad de examinar retrospectivamente la historia de las actividades de CT. Al principio, el programa de 'asistencia tecnica', como entonces se denominaba, era modesto: en 1960 la Junta de Gobernadores aprobo 28 proyectos en 16 Estados Miembros. Con el tiempo, la demanda de asistencia y competencia tecnica del Organismo ha aumentado sin cesar: el programa de CT que la Junta de Gobernadores aprobo en 2006 constaba de mas de 780 proyectos en 115 Estados Miembros. En los ultimos anos se ha experimentado en varios paises del mundo un cambio de las posturas respecto de la energia nucleoelectrica. El origen de esta tendencia se puede remontar al rapido aumento de la demanda de energia a escala mundial, el mayor enfasis en la seguridad energetica y una mayor sensibilizacion en cuanto a los riesgos del cambio climatico. Como consecuencia de ello, esta aumentando el numero de solicitudes de proyectos de planificacion energetica, una de cuyas opciones es la energia nucleoelectrica. En 2006, la Secretaria elaboro y finalizo el programa de CT para el bienio 2007-2008 haciendo uso del Marco de gestion del ciclo del programa (PCMF) en estrecha colaboracion con las autoridades nacionales. El PCMF esta respaldado por un sitio web especial, que facilita la colaboracion entre los interesados directos de los Estados Miembros y la Secretaria. En consonancia con la Estrategia de CT, la

  10. Influence of application time for 32-P labelled triple superphosphate on the fertilizer use efficiency and productivity of potato. Influencia da epoca de aplicacao de 32-P superfosfato triplo na eficiencia da fertilizacao fosfatada e na produtividade da batata

    Energy Technology Data Exchange (ETDEWEB)

    Bastidas O, O G; Leon A, A [Instituto de Asuntos Nucleares, Bogota (Colombia); Urquiaga C, S [Empresa Brasileira de Pesquisa Agropecuaria, Seropedica, RJ (Brazil)

    1988-09-01

    A study was performed on a soil derived from volcanic ash (Andic Humitropept), in Pasto (Narino), Colombia, to investigate the influence of additions of 100 and 200 Kg P[sub 2] O[sub 5] ha[sup -1], at two application times (plating and 30 days after emergence - DAE), on the fertilizer use efficiency and productivity of potato (Solanum tuberosum L.) cv. Pardo Pastusa. At planting the phosphorus was applied in a continuous row in the furrow, and at 30 DAE at one side of the plant row, and immediately covered with soil from both sides of the furrow. The fertilizer used was 32 P labelled triple superphosphate (143.59 [mu] Ci.g P[sup -1]). It was found that: (a) the phosphorus fertilization significantly increased (P<0.05) the yield (from 19.9 to 37.7 t. ha[sup -1]) and the accumulation of P (from eight to 17.8 Kg P ha[sup -1]) by the tubers, but there was no significant effects of times of the fertilizer application; (b) the accumulation of P by the plant accompanied the accumulation of plant dry matter; (c) at 75 DAE the fraction of fertilizer P in the plant shoot in the treatment fertilizer at 30 DAE (52.1%) was significantly higher than that fertilized at planting (21.8%), and this corresponded to a P fertilizer use efficiency of 2.4 and 0.82%, respectively. (author).

  11. Technical Cooperation Report for 2005. Report by the Director General; Informe de Cooperacion Tecnica para 2005. Informe del Director General

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-08-15

    identify how the changes in the structure of the Department and in the programming process will affect stakeholder satisfaction, the Department conducted surveys to establish a baseline for future assessments. The surveys targeted, inter alia, Member States, including National Liaison Officers, national coordinators, project counterparts and representatives at Missions in Vienna, and show that this grouping is satisfied overall with the programme. Financial indicators, including the value of the programme to be delivered, new resources, disbursements and new obligations for 2005 were all above 2004 levels. Extrabudgetary resources rose to a new record level of $14.9 million. Some $10.2 million of these resources were used to upgrade footnote-a/ projects or project components, providing funding for just under 25% of the approved footnote-a/ budgets. (author) [Spanish] En el Informe de cooperacion tecnica para 2005 se destacan las actividades y los logros del programa de cooperacion tecnica (CT) en el ultimo ano. En el documento tambien se exponen las novedades relacionadas con la gestion del programa y los asuntos financieros. La busqueda y el mantenimiento de asociados para el desarrollo siguio siendo una prioridad de la Secretaria. En 2005 la cooperacion con el Fondo para el Medio Ambiente Mundial del Programa de las Naciones Unidas para el Desarrollo prosiguio con un proyecto en Africa relacionado con la gestion del sistema de acuiferos de arenisca de Nubia. El programa de CT tambien esta desempenando una funcion importante en los programas financiados por conducto del Banco Mundial (proyecto del acuifero Guarani), el Banco Asiatico de Desarrollo (Iniciativa para un aire limpio en ciudades de Asia) y el Banco Africano de Desarrollo (proyecto de erradicacion de la mosca tsetse en la zona meridional del Valle del Rift, en Etiopia, y proyectos de lucha contra la mosca tsetse en otros paises). En las actividades del programa de CT durante 2005 se siguio prestando apoyo a los

  12. Advantages of the synthetic technique for the conduction of short circuit tests to breakers; Ventajas de la tecnica sintetica para realizar pruebas de corto circuito a interruptores

    Energy Technology Data Exchange (ETDEWEB)

    Sibilski, Henry [Instituto Electrotecnico de Varsovia, Varsovia (Poland); Ochoa Vivanco, Ruben [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1987-12-31

    In this article the operational principle of the synthetic test is described; specifically of the current injection circuit in parallel. Its utilization in the research and development of new breaker models and its wide possibilities regarding its testing characteristics is outlined. Likewise the different tests that can be performed by means of the synthetic technique are described. Finally the importance of the synthetic tests is outlined for the development of own technology in the area of interruption equipment and emphasis is made that in industrialized countries this technique is of common practice. [Espanol] En este articulo se describe el principio de operacion de la prueba sintetica; especificamente del circuito de inyeccion de corriente en paralelo. Se destaca su utilizacion en la investigacion y desarrollo de nuevos modelos de interruptores y sus amplias posibilidades en cuanto a caracteristicas de prueba. Asimismo, se describen las diferentes pruebas que pueden realizarse mediante la tecnica sintetica. Por ultimo, se destaca la importancia de las pruebas sinteticas para el desarrollo de tecnologia propia en el area de equipos de interrupcion, y se hace notar que en paises desarrollados, esta tecnica es practica comun.

  13. Advantages of the synthetic technique for the conduction of short circuit tests to breakers; Ventajas de la tecnica sintetica para realizar pruebas de corto circuito a interruptores

    Energy Technology Data Exchange (ETDEWEB)

    Sibilski, Henry [Instituto Electrotecnico de Varsovia, Varsovia (Poland); Ochoa Vivanco, Ruben [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1986-12-31

    In this article the operational principle of the synthetic test is described; specifically of the current injection circuit in parallel. Its utilization in the research and development of new breaker models and its wide possibilities regarding its testing characteristics is outlined. Likewise the different tests that can be performed by means of the synthetic technique are described. Finally the importance of the synthetic tests is outlined for the development of own technology in the area of interruption equipment and emphasis is made that in industrialized countries this technique is of common practice. [Espanol] En este articulo se describe el principio de operacion de la prueba sintetica; especificamente del circuito de inyeccion de corriente en paralelo. Se destaca su utilizacion en la investigacion y desarrollo de nuevos modelos de interruptores y sus amplias posibilidades en cuanto a caracteristicas de prueba. Asimismo, se describen las diferentes pruebas que pueden realizarse mediante la tecnica sintetica. Por ultimo, se destaca la importancia de las pruebas sinteticas para el desarrollo de tecnologia propia en el area de equipos de interrupcion, y se hace notar que en paises desarrollados, esta tecnica es practica comun.

  14. Technical Cooperation Report for 2007. Report by the Director General; Informe de Cooperacion Tecnica para 2007. Informe del Director General

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-08-15

    achievements in technical cooperation in each of the regions in 2007, describing regional emphases and responses to national priorities. As the Millennium Development Goals remain a key area of focus, the report demonstrates how the IAEA is making a contribution to global efforts to fight poverty, hunger and disease, as well as to support environmental sustainability and the health of mothers and children. Health in Asia was addressed in 2007, for example, through regional projects to train new medical staff, while in Europe, radiotherapy services were being upgraded in the Balkans. In Africa, projects on better animal health and improved crop productivity contributed to the fight against hunger, and in Latin America, activities in food fortification and the determination of vitamin deficiency helped to improve the health of mothers and children. Ensuring sustainable socioeconomic development in the future will depend on a reliable energy supply. Among the energy-related technical cooperation projects in Africa in 2007, support to energy planning helped to train national energy planning teams in Burkina Faso, Chad, Cote d'Ivoire, Mauritania and Niger. Assistance was also being provided to several African countries to help with the different stages of planning a nuclear power programme. In Asia and the Pacific, RCA Member States received support in the application of Agency-developed analytical tools for energy planning. In Latin America, energy security is seen as a priority issue. In 2007, the Agency provided assistance to the conversion of Europe's older research reactors from high to low enriched uranium. In Asia and the Pacific, the Agency provided advice on the development of nuclear power, based on the latest Agency guidelines and the document 'Milestones in the Development of a National Infrastructure for Nuclear Power'. (author) [Spanish] En la parte A de este documento se presenta una vision general de las actividades de cooperacion tecnica del 1 de abril de 2007 al

  15. Tecnicas de fisioterapia respiratoria: efeito nos parametros cardiorrespiratorios e na dor do neonato estavel em UTIN

    Directory of Open Access Journals (Sweden)

    Renata Martins

    2013-12-01

    Full Text Available OBJETIVOS: verificar os efeitos de técnicas de fisioterapia respiratória (TFR na dor e na função cardiorrespiratória de recém-nascidos (RN clinicamente estáveis com prescrição de TFR, internados em unidade de terapia intensiva neonatal. MÉTODOS: ensaio clínico randomizado cego. Os RN foram alocados em três grupos: G1-controle; G2- fisioterapia convencional; G3-reequilíbrio tóracoabdominal. Neonatos do G2 e G3 receberam intervenção em atendimento único. Todos foram avaliados antes, imediatamente após e 15 minutos após o término da intervenção/repouso quanto aos parâmetros cardiorrespiratórios (saturação periférica de oxigênio/SpO2, frequências cardíaca/fc e respiratória/fr e dor (escalas específicas: NIPS, NFCS e PIPP. Para análise dos dados foram aplicados: testes qui-quadrado, Friedman, Kruskal- Wallis e, posteriormente, análise de comparações múltiplas, com p0,05 e em relação à dor houve mudanças significativas nas escalas NIPS (G1 e G2, p=0,037 e p=0,011, respectivamente e PIPP (G2, p=0,005. CONCLUSÕES: técnicas de fisioterapia respiratória não desencadearam dor, nem instabilidade cardiorrespiratória nos RN estudados.

  16. Modelling and application of modern control techniques to governor and voltage regulator systems of synchronous machines of small hydroelectric power plants; Modelagem e aplicacao de tecnicas de controle moderno a sistemas reguladores de velocidade e tensao de maquinas sincronas de pequenas centrais hidreletricas

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Claudio Homero Ferreira da

    2002-07-01

    In small hydroelectric plants the control system is quite simplified. It is sometimes mounted in a primitive and archaic way although it is functional. Performance of this system determines the final quality of the energy, stability and physical integrity of the apparatus as well as the whole electric system. Based on the present situation of the electric system, it is noticed a tendency in building and modernizing early small hydroelectric plants in order to increase energy supply very fast with low cost and satisfying environmental constraints. The development of mathematical tools and digital computer facilities have made possible the use of advanced automatic control structures that take into account the process stability even in presence of noise measurement and plant/model mismatch. Physical modifications in the plant are proposed in order to provide significant improvement in closed loop behaviour of the turbine speed and terminal voltage control. The decision ability and flexibility of the computer package to be developed are the major aspects that support this research. It will be intended to incorporate this control computer package into programmable logical controller. Experimental data from CEMIG's Martins Hydro Plant (4 x 2750 KVA), located in Uberlandia, Brazil, were used to identify and validate the system model. Pole placement, optimal control and model predictive control techniques were used to controller design. Perfect modeling and plant/model mismatch were considered in both presence and absence of state observers (full order and reduced order) in order to become accessible unmeasured states. Simulation results show developed controllers are promising for the system regulating. The proposed approaches offer a larger control flexibility taking into account plant/model mismatch and stability questions. These results contribute to a quality energy improvement associated to a cost reduction in energy generation process. (author)

  17. Evaluation of radon measuring technique using passive detector activated carbon; Avaliacao da tecnica de medicao do radonio utilizando detector passivo com carvao ativado

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira, Paulo Roberto Rocha; Lessa, Edmilson de Lima; Oliveira, Evaldo Paulo de, E-mail: epoliveira@aluno.ird.gov.br [Instituto de Radioprotecao e Dosimetria, (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil). Div. de Radioprotecao Ambiental e Ocupacional

    2014-07-01

    This study aims to evaluate the efficiency of measuring the radioactive gas Radon ({sup 222} Rn) with passive detector activated carbon. Alpha Guard, exposure chamber, air sampler, default font Radio, calibrator flow, flow adjuster, ducts drivers: For this, various equipment to make the measurement system as were used. An assembly of such equipment, with specific sequence was used allowing for more efficient exposure of passive detectors Radon gas. Twenty samples were heated to remove moisture and then stored in desiccator until the experiment were made. The exhibition was held passive dosimeters being removed from the chamber, and one hour after, subjected to analysis by gamma spectrometry in germanium (HPGe) for an hour. Subsequently, other measurements were made at scheduled times and sequential for one hour. The results were presented in report form and spectra, measures and graphs generated by Alpha Guard were also extracted. Finally we calculated the efficiency of the passive meter activated carbon. (author)

  18. Dynamic system for the evaluation of CIM monitoring and control techniques; Sistema dinamico para avaliacao de tecnicas de monitoracao e controle da CIM

    Energy Technology Data Exchange (ETDEWEB)

    Penna, Monica de Oliveira [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES). Biotecnologia e Ecossistemas]. E-mail: mpena@cenpes.petrobras.com.br; Baptista, Walmar; Brito, Rosane Fernandes de [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES). Tecnologia de Materiais, Equipamentos e Corrosao]. E-mails: walmar@cenpes.petrobras.com.br; rosanef@cenpes.petrobras.com.br; Silva, Edilson Domingos da; Nascimento, Juliana Rangel do [Fundacao Gorceix, Ouro Preto, MG (Brazil)]. E-mails: edilson@cenpes.petrobras.com.br; julianarn@cenpes.petrobras.com.br; Coutinho, Claudia M.L.M. [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil). Inst. de Biologia. Dept. de Biologia Celular e Molecular

    2002-03-01

    In general, the two main problems associated to the water injection system for secondary petroleum recovery are the corrosion control and the decrease in solid injection in the reservoir. Corrosion problems in injection water systems may have abiotic as well as biotic causes, and the occurrence of reservoir plugs can result from the injection of particles (suspended solids as well as corrosion products), bacteria and fouling formation. Due to the need to implement a methodology for the evaluation of abiotic and biotic corrosive processes, monitoring techniques and MIC control in a dynamic system, an apparatus was built that simulates the characteristics of a water injection system. The apparatus allows monitoring and control of the parameters that, when varied, may influence the performance of the quality of the injected water. The dynamic system was designed to simulate as precisely as possible the conditions that allow the SRB and heterotrophic bacteria to create fouling in a water injection system. This article discusses the dynamic system, analytical methods and some preliminary results. (author)

  19. Characterization, analysis and dating of archaeological ceramics from the Amazon basin through nuclear techniques; Caracterizacao, analise e datacao de ceramicas arqueologicas da Bacia Amazonica atraves de tecnicas nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Latini, Rose Mary

    1998-07-01

    The aim of this work is to contribute to the research in the reconstruction of part of the pre-history of the Amazon Basin by means of an analytical methods combined with multivariate analysis, given a analytic basis that can be continued by the archaeological work, through the identification, classification, provenance and dating the ceramics found in different archaeological sites of the Hydro graphic Basin of the Purus river. Neutron activation analysis in conjunction multivariate statistical methods were used for the identification and classification and thermoluminescence was used for the dating. Chemical composition results were in better agreement with archaeological classification for the archaeologically define Iquiri, Quinan and Xapuri phases and less characteristics the Iaco and Jacuru archaeological phase were not well characterized. An homogeneous group was established by most of the samples collected from the Los Angeles Archaeological Site (LA) and was distinct from all the other groups analysed. The provenance studies made with ceramics collected at this site shows that they were made with clay from nearby river (Rio Ina). From the LA ceramics dating the average date of site occupation was 1660 years. The ceramic dating results from the external wall of a circular earth wall construction confirm the relation with the local pre-history. Beyond the Acre material two urns were dated from the Archaeological Site Morro Grande and Sao Jose at Araruama, Rio de Janeiro. (author)

  20. Cone beam computed tomography in veterinary dentistry: description and standardization of the technique; Tomografia computadorizada de feixe conico na odontologia veterinaria: descricao e padronizacao da tecnica

    Energy Technology Data Exchange (ETDEWEB)

    Roza, Marcello R. [Universidade Federal de Goias (UFG), Goianai, GO (Brazil)], e-mail: marcelloroza@gmail.com; Silva, Luiz A.F.; Fioravanti, Maria C. S. [Universidade Federal de Goias (UFG), Goiania, GO (Brazil). Escola de Veterinaria. Dept. de Medicina Veterinaria; Januario, Alessandro L. [International Team for Implantology (ITI), Sao Paulo, SP (Brazil); Barriviera, Mauricio [Universidade Catolica de Brasilia (UCB), DF (Brazil). Faculdade de Odontologia. Dept. de Radiologia; Oliveira, Alexandre C.A. [Faculdade de Odontologia Sao Leopoldo Mandic, Campinas, SP (Brazil)

    2009-08-15

    Eleven dogs and four cats with buccodental alterations, treated in the Centro Veterinario do Gama, in Brasilia, DF, Brazil, were submitted to cone beam computed tomography. The exams were carried out in a i-CAT tomograph, using for image acquisition six centimeters height, 40 seconds time, 0.2 voxel, 120 kilovolts and 46.72 milli amperes per second. The ideal positioning of the animal for the exam was also determined in this study and it proved to be fundamental for successful examination, which required a simple and safe anesthetic protocol due to the relatively short period of time necessary to obtain the images. Several alterations and diseases were identified with accurate imaging, demonstrating that cone beam computed tomography is a safe, accessible and feasible imaging method which could be included in the small animal dentistry routine diagnosis. (author)

  1. Comparison of three techniques for skin total irradiation with electrons; Comparacao de tres tecnicas de irradiacao total da pele com eletrons

    Energy Technology Data Exchange (ETDEWEB)

    Batista, Delano V.S., E-mail: dbatista@ird.gov.b [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Instituto Nacional de Cancer (INCa), Rio de Janeiro, RJ (Brazil); Bardella, Lucia H. [Instituto Nacional de Cancer (INCa), Rio de Janeiro, RJ (Brazil); Rosa, Luiz A.R. da, E-mail: lrosa@ird.gov.b [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2011-10-26

    This paper compared three techniques of skin total irradiation with electrons: 1) horizontal positioning, 2) vertical positioning - rotatory technique and 3) vertical positioning - six fields technique. For that, a anthropomorphic phantom was positioned according to the recommendation for each technique and was i radiated at the linear accelerator by using the 6 MeV electrons. Radiochromic films were positioned on the surface in various regions of the phantom for measurement of absorbed dose. A ionization chamber was positioned inside of equivalent issue plates for dose evaluation due to the photons produced by electron stopping. The technique 2 and 3 have shown too similar in the results and number or discrepant points (8 and 10 respectively) of prescription lower than the technique 1 (22 points). The total body dose of photons of the 1, 2 and 3 techniques was 2.2%, 5.3% and 5.2% respectively

  2. Consideration on the technical service quality and the Portugal situation; Consideracoes sobre a qualidade tecnica de servico e caracterizacao da situacao em Portugal

    Energy Technology Data Exchange (ETDEWEB)

    Santana, J.; Afonso, Jose [Entidade Reguladora do Sector Electrico (ERSE), XX (Portugal)

    1999-07-01

    This paper presents some considerations on the technical quality of power supply for the consumption and, for the specific characterization of the Portugal electric sector, a summary analysis of the energy production, transport and distribution activities.

  3. Experimental study of natural two-phase flow circulation using a visualization technique; Estudo experimental da circulacao natural bifasica utilizando uma tecnica de visualizacao

    Energy Technology Data Exchange (ETDEWEB)

    Vinhas, Pedro A.M., E-mail: Pedro_mvinhas@poli.ufrj.br [Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ (Brazil). Dept. de Engenharia Nuclear; Faccini, Jose L.H., E-mail: faccini@ien.gov.br [Instituto de Engenharia Nuclear (IEN/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Su, Jian, E-mail: sujian@lasme.coppe.ufrj.br [Coordenacao dos Programas de Pos-Graduacao em Engenharia (COPPE/UFRJ), Rio de Janeiro, RJ (Brazil). Programa de Engenharia Nuclear

    2013-07-01

    This paper presents an experimental study of natural two-phase flow in a circuit that simulates, on a smaller scale, a typical residual heat removal system of passive reactors APWR (Advanced Pressurized Water Reactor). The circuit was formed by a heater, a heat exchanger and piping. The experimental study was the application of a visualization technique, using a high speed camera, for measuring the size and speed of vapor bubbles generated in the heater with different power heating. The camera was positioned in the central region of the pipe connecting the heater to the heat exchanger, where there is a clear passage. The flow of images were processed and analyzed using commercial software that allowed the determination of the length and velocity of the bubbles. The results were then compared with correlations available in literature.

  4. Stratospheric gravity wave activities inferred through the GPS radio occultation technique; Ondas de gravidade na estratosfera terrestre inferida atraves da tecnica de radio ocultacao de GPS

    Energy Technology Data Exchange (ETDEWEB)

    Wrasse, Cristiano Max [Universidade do Vale do Paraiba (UNIVAP), Instituto de Pesquisa e Desenvolvimento (IPeD), Sao Jose dos Campos, SP (Brazil); Takahashi, Hisao; Fechine, Joaquim; Denardini, Clezio Marcos [Instituto Nacional de Pesquisas Espaciais (INPE), Sao Jose dos Campos, SP (Brazil); Wickert, Jens, E-mail: cmw@univap.br, E-mail: hisaotak@laser.inpe.br, E-mail: joaquim@laser.inpe.br, E-mail: denardin@dae.inpe.br, E-mail: jens.wickert@gfz-potsdam.de [GeoForschungsZentrum, Potsdam (GFZ), Department of Geodesy and Remote Sensing (Germany)

    2007-07-01

    Stratospheric gravity wave activities were deduced from GPS radio occultation temperature profiles obtained by CHAMP satellite between 2001 and 2005. Potential energy profiles are used to analyze the gravity wave activity over South America. The results showed an inter-annual variation of the potential energy integrated between 24 and 34 km of altitude. The gravity wave activity is more concentrated around the equatorial region. In order to evaluate the seasonal variation of the gravity wave activity, a mean potential energy was determined over (10 deg N-10 deg S) and (100 deg W-20 deg W). The results showed a lower gravity wave activity during winter time, while during spring time the mean potential energy showed an increase in the wave activity. The results of the mean potential energy also showed that the gravity wave activity in the lower stratosphere exhibits a higher wave activity during 2002 and 2004 and a lower wave activity during 2003 and 2005. (author)

  5. The use of environmental monitoring as a technique to identify isotopic enrichment activities; O uso da monitoracao ambiental como tecnica de identificacao de atividades de enriquecimento isotopico

    Energy Technology Data Exchange (ETDEWEB)

    Buchmann, Jose Henrique

    2000-07-01

    The use of environmental monitoring as a technique to identify activities related to the nuclear fuel cycle has been proposed, by international organizations, as an additional measure to the safeguards agreements in force. The elements specific for each kind of nuclear activity, or nuclear signatures, inserted in the ecosystem by several transfer paths, can be intercepted with better or worse ability by different live organisms. Depending on the kind of signature of interest, the anthropogenic material identification and quantification require the choice of adequate biologic indicators and, mainly, the use of sophisticated techniques associated with elaborate sample treatments. This work demonstrates the technical viability of using pine needles as bioindicators of nuclear signatures associated with uranium enrichment activities. Additionally, it proposes the use of a technique widely diffused nowadays in the scientific community, the High Resolution Inductively Coupled Plasma Mass Spectrometer (HR-ICP-MS), to identify the signature corresponding to that kind of activities in the ecosystem. It can be also found a description of a methodology recently being applied in analytical chemistry,based on uncertainties estimates metrological concepts, used to calculate the uncertainties associated with the obtained measurement results. Nitric acid solutions with a concentration of 0.3 mol.kg{sup -1}, used to wash pine needles sampled near facilities that manipulate enriched uranium and containing only 0.1 {mu}g.kg{sup -1} of uranium, exhibit a {sup 235} U: {sup 238} U isotopic abundance ratio of 0.0092{+-}0.0002, while solutions originated from samples collected at places located more than 200 km far from activities related to the nuclear fuel cycle exhibit a value of 0.0074{+-}0.0002 for this abundance ratio. Similar results were obtained for samples collected in different places permit to confirm the presence of anthropogenic uranium and demonstrate the viability of using this technique and the methodology proposed in this work. (author)

  6. The result analysis by A-Frame technique in coating failure detection; Analise dos resultados do uso da tecnica A-Frame na localizacao de falhas no revestimento

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Fabio Amarante; Leite, Daniele C.F. [PETROBRAS, Rio de Janeiro, RJ (Brazil); Oliver, Joao Hipolito L. [TRANSPETRO - PETROBRAS Transportes, Rio de Janeiro, RJ (Brazil)

    2005-07-01

    This paper presents the method used to helps the on land pipeline integrity management, focusing on external corrosion control. The method is achieved by gathering together the data from an Over The Line Survey (OLS) and an In Line Inspection (ILI). As the corrosion occurs at a coating fault in a non-effective cathodic protection (cp) area, both coating and metal loss inspection data were employed in this method. The OLS is applied to pinpoint and graduate the coating faults in underground pipeline by using the Coating Attenuation / A-Frame (ACVG - Alternate Current Voltage Gradient) technic. The ILI is applied to measure the external metal loss (corrosion) by running a smart PIG tool. In some pipelines a huge number of coating fault can be found, but it doesn't mean that all of them must be repaired, so it is a need to identify the critical coating fault, so that the number of digging for coating repair can be drastically reduced. In the other way, as the smart PIG can provide data of corrosion in the pipe, the coating fault on a corroded area can be considered as a critical one. Together, those data may point the spot where the cathodic protection was not effective and the coating failure resulted in corrosion on the pipe. This method has been a helpful criterion to identify critical coating faults and reduce the overall repair cost, it can be also used to indirect evaluate the performance of cp system, since no corrosion indication on a coating fault area can be assumed that the CP is effective. (author)

  7. Study of the porosity of synthetic sandstones by nondestructive nuclear techniques; Estudo da porosidade de arenitos sinteticos por tecnicas nucleares nao destrutivas

    Energy Technology Data Exchange (ETDEWEB)

    Marques, Leonardo Carmezini

    2008-07-01

    In this paper, nuclear techniques have been used to describe structural characteristics of ceramic samples. These samples were produced to serve as simulates of sandstones and their mainly component was silica (SiO{sub 2}). Three sets of these samples with different characteristics were analyzed with the gamma ray transmission and the X-ray microtomography. They had the function to describe parameters as porosity point to point and total average porosity, for the transmission case, and 2D sections average porosity, total average porosity and size porous distribution for microtomography, as well as to investigate possible irregularities in bulk sample. The experimental set up for the gamma ray transmission technique consisted of: a 2 x 2 crystal NaI(Tl) detector, an {sup 241}Am radioactive source (59.54 keV, 100 mCi), an automatic micrometric table for the sample XZ movement and standard gamma spectrometry electronics. Lead collimators with 2 mm diameter were placed on the source way out and on the detector entrance. The microtomographic measurements were done with a Skyscan system, model 1172, with a X-ray tube with 20-100 kV of voltage range and a CCD camera. Employing gamma ray transmission method was possible to obtain overall porosity values from 25.8 to 34.0 % and from 24.8 to 29.2 % for samples with parallelepiped and cylinder shape, respectively, for ceramic I set; from 58.5 to 61.0 % and from 57.1 to 61.7 % for the same geometric shape of ceramic II set. The samples analyzed by the microtomography achieved resolutions of 1.73 {mu}m, 0.64 {mu}m and 1.28 {mu}m for samples of ceramic set I, II and III, respectively. This methodology provided average total porosity values from 26.6 to 29.4 %, from 48.4 to 51.0 % and from 28.2 to 30.6 % to I, II and III ceramic sets, respectively. The porous size profiles of each ceramic sample were also measured. (author)

  8. Ceramic filters analysis for aluminium melting through microtomography technique; Analise de filtros ceramicos para fundicao de aluminio atraves da tecnica de microtomografia

    Energy Technology Data Exchange (ETDEWEB)

    Rocha, Henrique de Souza; Lopes, Ricardo Tadeu; Jesus, Edgar Francisco Oliveira de; Oliveira, Luis Fernando de [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia (COPPE). Lab. de Instrumentacao Nuclear; Duhm, Rainer; Feiste, Karsten L.; Reichert, Christian; Reimche, Wilfried; Stegemann, Dieter [Universidade de Hannover (Germany). IKPH

    2000-07-01

    In this work a ceramic filters analysis is done through the microtomography for improvement of the aluminium melting process through the filter porosity control. Microtomography were obtained of ceramic filters with pore dimensions of 10, 20 and 30 ppi. The data were calculated by using an reconstruction algorithm for divergent beam implemented in the Nuclear Instrumentation Laboratory of COPPE/UFRJ and analysed through cells and windows separation according to the defined by Ray. For the analyses the Image Pro program were used where the cells have been detached by sphere inserted, adjusting by nine points, in the filter cavities. So, the size of the answer sphere were considered as the cell size. The windows were measured by straight lines secant to the window intersections.

  9. Heat transfer coefficients obtainment by means of naphthalene sublimation in air; Obtencion de coeficientes de transferencia de calor por medio de la tecnica de sublimacion de naftalina en aire

    Energy Technology Data Exchange (ETDEWEB)

    Perez Galindo, Jose Arturo; Garcia Gutierrez, Alonso [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1986-12-31

    This work describes the experimental technique for the sublimation of naphthalene in air which measures heat transfer coefficients through the use of the analogy between the transference phenomena of heat and mass. The technique used to substitute the experimental measurements of heat transfer, in which it is difficult to control the border thermal conditions, when they are dimmed by the omnipresent problem of heat conduction through the walls of the transference surfaces. Two examples are included of the application technique and its potential is outlined. [Espanol] En este trabajo se describe la tecnica experimental de la sublimacion de naftalina en aire mediante la que se miden coeficientes de transferencia de masa. Los datos asi obtenidos pueden convertirse en coeficientes de transferencia de calor a traves del uso de la analogia entre los fenomenos de transferencia de calor y masa. La tecnica se utiliza para substituir las mediciones experimentales de transferencia de calor, en las que es dificil controlar las condiciones termicas de frontera, cuando las empana el problema omnipresente de la conduccion de calor a traves de las paredes de las superficies de transferencia. Se incluyen dos ejemplos de la aplicacion de la tecnica y se destaca su potencial.

  10. Heat transfer coefficients obtainment by means of naphthalene sublimation in air; Obtencion de coeficientes de transferencia de calor por medio de la tecnica de sublimacion de naftalina en aire

    Energy Technology Data Exchange (ETDEWEB)

    Perez Galindo, Jose Arturo; Garcia Gutierrez, Alonso [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1985-12-31

    This work describes the experimental technique for the sublimation of naphthalene in air which measures heat transfer coefficients through the use of the analogy between the transference phenomena of heat and mass. The technique used to substitute the experimental measurements of heat transfer, in which it is difficult to control the border thermal conditions, when they are dimmed by the omnipresent problem of heat conduction through the walls of the transference surfaces. Two examples are included of the application technique and its potential is outlined. [Espanol] En este trabajo se describe la tecnica experimental de la sublimacion de naftalina en aire mediante la que se miden coeficientes de transferencia de masa. Los datos asi obtenidos pueden convertirse en coeficientes de transferencia de calor a traves del uso de la analogia entre los fenomenos de transferencia de calor y masa. La tecnica se utiliza para substituir las mediciones experimentales de transferencia de calor, en las que es dificil controlar las condiciones termicas de frontera, cuando las empana el problema omnipresente de la conduccion de calor a traves de las paredes de las superficies de transferencia. Se incluyen dos ejemplos de la aplicacion de la tecnica y se destaca su potencial.

  11. Technical analysis of volume-rendering algorithms: application in low-contrast structures using liver vascularisation as a model; Analisi tecnica degli algoritmi di volume rendering: applicazione alle strutture a basso contrsto usando come modello la vascolarizzazione epatica

    Energy Technology Data Exchange (ETDEWEB)

    Cademartiri, Filippo [Erasmus Medical Center, Rotterdam (Netherlands); Luccichenti, Giacomo [Fondazione Biomedica Europea ONLUS, Roma (Italy); Runza, Giuseppe; Bartolotta, Tommaso Vincenzo; Midiri, Massimo [Palermo Univ., Palermo (Italy). Sezione di scienze radiologiche; Gualerzi, Massimo; Brambilla, Lorenzo; Coruzzi, Paolo [Parma Univ., Parma (Italy). UO di prevenzione e riabilitazione vascolare, Fondazione Don C. Gnocchi ONLUS; Soliani, Paolo; Sianesi, Mario [Parma Univ., Parma (Italy). Dipartimento di chirurgia

    2005-04-01

    visualizzazione delle strutture vascolari portali (strutture a basso contrasto). Materiale e metodi: Sono stati valutati tramite TC spirale con tecnica bifasica 22 pazienti. I parametri utilizzati per la scansione sono stati: collimazione 3 mm, pitch 2, avanzamento 1 mm. Le scansioni eseguite sono state tre: la prima senza mezzo di contrasto (mdc), le ultime due con iniezioni di mdc (convenzionalmente identificate come 'arteriosa' e 'portale'). Le immagini sono poi state trasferite su una consolle di post-elaborazione dotata di sistema oparativo Windows NT con software per ricostruzioni tridimensionali (3D) in grado di produrre immagini in volume rendering della vascolarizzazione epatica. Sono state valutate: la correlazione tra i valori assoluti dell'aorta, attenuazione del fegato e della vena oprta, i parametri delle CO e la qualit� delle immagini. Risultati: Le immagini 3D ottenute utilizzando le CO preimpostate di ricostruzione possiedono una qualit� molto pi� bassa rispetto a quelle ottenute utilizzando la CO scelta dall'operatore. L'elevato contrasto tra il fegato e la vena porta, per esempio durante la fase portale, utilizza delle finestre pi� larghe, in modo da aumentare la qualit� dell'immagine. Al contrario, nelle scansioni effettuate durante la fase parenchimografica, la CO deve avere un elevato gradiente in modo tale da permettere una migliore distinzione delle strutture vascolari dal parenchima epatico che le circonda. Conclusioni: Le caratteristiche dell'immagine, considerate di interesse per l'operatore, non possono essere semplificate dalla media delle CO preimpostate. Data la loro estrema variabilit� individuale, gli algoritmi 3D automatici non possono essere universalmente applicati: dovrebbero essere adattati sia alle caratteristiche dell'immagine che al paziente.

  12. Technical feasibility of using silver and copper ions electro generated in the microbiological control of cooling systems; Factibilidad tecnica para emplear iones plata y cobre electrogenerados en el control microbiologico de los sistemas de enfriamiento

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Susana M; Martinez Meza, Esteban; Alvarez Gallegos, Alberto [Instituto de Investigaciones Electricas, Temixco, Morelos (Mexico)

    2001-07-01

    bacterial populations promoters of the microbiological influenced corrosion and the biological fouling at levels of 1000 c/ml and less, competing with the conventional cooling water treatment processes. Also, the adherence capacity of the biofilm on the surfaces of the cooling system would be seriously affected because the silver is adsorbed to the surface that contains it and still continues its bactericidal effect. Additionally, the coliform bacteria are reduced below the levels accepted by the Mexican Official Standard. A table of the silver required for disinfection of different water qualities is shown and another one on the evaluation of the process and finally one on the effectiveness of the process using the silver/copper system in residual water. [Spanish] El objetivo de este trabajo es determinar la factibilidad tecnica de sustituir el uso de cloro por otro biocida (ionizacion de plata o cobre) no peligroso en aguas de enfriamiento. Esta tecnica de ionizacion podria ser empleada para tratar el agua de procesos industriales en general. El agua empleada provino del agua de repuesto del sistema de enfriamiento de la Central Termoelectrica de Valle de Mexico (CTEVM) y agua residual de las plantas de tratamiento del Instituto Mexicano de Tecnologia del Agua (IMTA) y el Instituto de Investigaciones Electricas (IIE). Los tres tipos de agua empleados tienen caracteristicas fisicas, quimicas y biologicas similares. La metodologia usada fue la prueba de jarras y por sistema continuo. Se indica el analisis bacteriologico llegando a la conclusion. Los sistemas metalicos estudiados en el establecimiento del control microbiologico en el agua residual y agua de repuesto son plata, plata/cobre y cobre en los intervalos de concentracion de 200 mg/L a 3000 mg/L de plata y de 200 mg/L a 1200 mg/L de cobre. Los experimentos realizados en la prueba de jarras (sistema cerrado) se llevaron a cabo a dos temperaturas (25 {+-} 0.5 y 32 {+-} 0.5 ) sin controlar el pH; mientras que en el

  13. Application of organic facies in sedimentological-stratigraphical model of the Oligo-Miocene and Miocene of the Campos Basin; Aplicacao da faciologia organica no modelo sedimentologico-estratigrafico do Oligo-Mioceno e Mioceno da Bacia de Campos

    Energy Technology Data Exchange (ETDEWEB)

    Mendonca Filho, Joao Graciano; Mendonca, Joalice de Oliveira; Oliveira, Antonio Donizeti de; Torres, Jaqueline [Universidade Federal do Rio de Janeiro (UFRJ). Centro de Ciencias Exatas e da Natureza. Inst. de Geociencias (Brazil)], e-mails: graciano@geologia.ufrj.br, donizeti@lafo.geologia.ufrj.br, joalice@lafo.geologia.ufrj.br, jaqueline@lafo.geologia.ufrj.br; Menezes, Taissa Rego [Centro de Pesquisas da Petrobras (CENPES), RJ (Brazil). P e D em Geociencias. Gerencia de Geoquimica], e-mail: taissamenezes@petrobras.com.br; Santos, Viviane Sampaio Santiago dos; Arienti, Luci Maria [Centro de Pesquisas da Petrobras (CENPES), RJ (Brazil). P e D em Geociencias. Gerencia de Sedimentologia e Estratigrafia], e-mails: vsss@petrobras.com.br, arienti@petrobras.com.br

    2010-05-15

    This study integrates palynofacies analyses and the sedimentological and stratigraphic model of the Oligo-Miocene/Miocene siliciclastic deposits from the stratigraphic interval of the shallow continental platform up to the slope/basin of the Oligo-Miocene/ Miocene of the Campos Basin proposed. The main objective of the palynofacies study was to characterize the particulate sedimentary organic matter to obtain information about the proximal-distal relationship and the sedimentary organic matter preservation and depositional environmental conditions. The 158 core samples collected in 29 wells of the 9 oil production fields (Albacora, Barracuda, Marlim Sul, Marlim, Voador, Marlim Leste, Moreia and Albacora Leste), were studied. This technique provides information about the proximal-distal relationship and the paleoenvironmental conditions of deposition and preservation of sedimentary organic matter, to facilitate the evaluation and comparisons between the associations of particulate organic components. Thus, the palynofacies technique can be used as another tool in the characterization of depositional systems, based on the spatial and temporal distribution of sedimentary intervals. In general the palynofacies assemblages showed the predominance of the Phytoclast Group (terrestrial derived organic matter) at various degradation stages due to the selective preservation process diagnosed in the studied samples. Some samples, revealed high dinocysts percentages indicative of transgressive depositional conditions. From the obtained data, it was possible to characterize the stratigraphic sequences according to the distribution of particulate organic content (e.g. influence of fluvio-deltaic systems, oxygen system, regressive-transgressive tendencies of each sequence). Additional analyses of Total Organic Carbon (% wt) showed the control of the particulate components from the Phytoclast Group on the TOC (% wt) content, suggesting that the relative sea-level variation curves can be drawn inversely to the TOC content variation curves along the sequences, since siliciclastic progradation always presents a correlation with the absolute abundance of the terrestrial organic matter. (author)

  14. Prediction of the thermal expansion coefficients of bio diesels from several sources through the application of linear regression; Predicao dos coeficientes de expansao termica de biodieseis de diversas origens atraves da aplicacao da regressa linear

    Energy Technology Data Exchange (ETDEWEB)

    Canciam, Cesar Augusto [Universidade Tecnologica Federal do Parana (UTFPR), Campus Ponta Grossa, PR (Brazil)], e-mail: canciam@utfpr.edu.br

    2012-07-01

    When evaluating the consumption of bio fuels, the knowledge of the density is of great importance for rectify the effect of temperature. The thermal expansion coefficient is a thermodynamic property that provides a measure of the density variation in response to temperature variation, keeping the pressure constant. This study aimed to predict the thermal expansion coefficients of ethyl bio diesels from castor beans, soybeans, sunflower seeds and Mabea fistulifera Mart. oils and of methyl bio diesels from soybeans, sunflower seeds, souari nut, cotton, coconut, castor beans and palm oils, from beef tallow, chicken fat and hydrogenated vegetable fat residual. For this purpose, there was a linear regression analysis of the density of each bio diesel a function of temperature. These data were obtained from other works. The thermal expansion coefficients for bio diesels are between 6.3729x{sup 10-4} and 1.0410x10{sup -3} degree C-1. In all the cases, the correlation coefficients were over 0.99. (author)

  15. Evaluation of the effects resulting from the application of magnetic fields on the properties of crude oils and paraffins; Avaliacao da influencia da aplicacao de campos magneticos sobre as propriedades de petroleo e parafinas

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, Lenise Couto; Rocha, Nelson de Oliveira; Dittz, Carlos Henrique da Silva [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas (CENPES). Setor de Tecnologia de Processamento e Transporte

    2000-03-01

    In petroleum industry the phenomenon of build-up of organic deposits, basically of paraffinic nature, into surface equipment, flow lines and columns has been one of the greatest problems concerning the production and transfer of crude oils, leading to significant and increasing losses in production. The approach through the application of magnetic field is a novel technique, neither explained nor exploited altogether, not one that turns out to be a simple preventive solution for the problem requiring low investment and showing expressive benefits, provided its effectiveness is confirmed. The main results of laboratory test where the effects of application of magnetic fields on the properties of two crude oil types, one mixture of paraffins and two reference solution were evaluated are presented herein, and this paper also approaches the influence of process variables (Magnetization temperature, exposure time and magnetic field density) on the efficiency of this process of treatment. (author)

  16. Biotechnological application of protein Leuc-B isolated from Bothrops leucurus venom as a prototype for antitumoral radiopharmaceutical;Aplicacao biotecnologica da proteina Leuc-B isolada da peconha de Bothrops leucurus como prototipo de radiofarmaco antitumoral

    Energy Technology Data Exchange (ETDEWEB)

    Gabriel, Lucilene Marcia

    2010-07-01

    According to the report of the International Agency for Research on Cancer, the growth of this disease implies the death of 17 million people a year by 2030. Although the knowledge on development of cancer is growing considerably, just a few advances in the diagnosis and therapy has been achieved. Faced with this scenario, it is clear the need for new substances more specifics with low toxicity to the patient, which can be used for diagnosis and treatment of cancer. Membrane receptors over expressed in tumor cells are promising target candidates for development of diagnostic and therapeutical tools. Integrins are a family of hetero dimeric cell surface adhesion receptors able to recognize and bind to proteins in the extracellular matrix (ECM). This recognition is mainly through the RGD domains presents in both the cell surface as in the protein from the ECM. Various integrins have been identified as regulators of tumor progression. The RGD domain is also found in some snake venoms named disintegrins. Disintegrins inhibit cell-matrix and a cell-cell interactions mediated by integrins and it has been shown that these proteins are able to inhibit metastasis in processes dependent on integrin. The disintegrin-like (ECD), as well as RGD-disintegrin are also able to bind to cell surface integrins and inhibit their adhesion to the natural ligands. In this work it was purified from Bothrops leucurus venom (VBL), a metalloproteinase-class P-III with disintegrin-like domain (ECD), Leucurolisina B (Leuc-B). This metalloproteinase and the crude venom were used to evaluate their applicability in the differential detection of tumors. In vitro results demonstrated that both VBL and Leuc-B have potent antitumoral effect on several cancer cell lines: U87, T98, RT2 (glioblastoma), MCF7 (breast), Ehrlich and UACC (melanoma) with IC{sub 50} values of approximately 0.6 muM. The morphological changes observed in these strains when treated with Leuc-B, and data from the DAPI staining solution and acridine/ethidium bromide indicate that the antitumoral effect of these substances occurs via apoptosis. Radioactive probes of Leuc-B ({sup 131}/{sup 125}I-Leuc-B) were synthesized with high specific activity and high radiochemical purity. Biodistribution studies, performed by intravenous injection and intratumoral flow in mice bearing Ehrlich tumor showed a significant tumor uptake Leuc-B ( p <0.05). These results show the potential of Leuc-B as a template for the development of drugs and radiopharmaceuticals for diagnosis and therapy of tumors. (author

  17. Preliminary evaluation of the utilization of biopiles technology to the bioremediation of the soil of Guamare/RN (Brazil); Avaliacao preliminar da aplicacao da tecnologia de biopilhas para a biorremediacao do solo de Guamare/RN (Brasil)

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Edmilson P.; Macedo, Gorete R.; Duarte, Marcia M.L. [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil). Dept. de Engenharia Quimica; Costa, Alex S.S. [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil)

    2004-07-01

    The aim of this work was to evaluate the use of biopiles to the bioremediation of the soil of Stabilization Station of Guamare-RN-Brazil. The evaluation was performed by the characterization of the soil, tests of biodegradation in laboratory scale and by the use of a complete 2{sup 3} factorial design with triplicate at the central point. The input variables were: Nitrogen concentration; diesel-oil concentration; and inoculum concentration. The response variable was the percentage gravimetric loss of organic matter. Statistical analyses of the main factors and their interactions on the response variable were performed using contour curves and Pareto obtained from the software STATISTICA for Windows, Release 5.5. The results showed that biopiles technology can be used to remediate eventual contaminated areas in that region. (author)

  18. Application of data representation by fuzzy conditional propositions in the modeling of measurement uncertainty; Aplicacao da representacao de dados por proposicoes condicionais difusas na modelagem da incerteza de medicao

    Energy Technology Data Exchange (ETDEWEB)

    Magalhaes, A.N. de; Lambert-Torres, G.; Rissino, S.; Silva, M.F. da; Silva, L.E. Borges da; Carvalho, L.M.R. de

    2009-07-01

    It is not an easy task to frame uncertainty measurement problems by means of differential equations quickly and satisfactorily. Therefore, it is necessary to adapt the method for data representation by conditional fuzzy propositions for modeling uncertainties measurement and their effect on the propagation. This method provides a parametric adjustment for fuzzy sets of assumptions, and the functions of consequence of each rule in the manner of a parable. The paper introduces concepts of sources of errors in measures, fundamentals of fuzzy logic, description of the algorithm method, application to error detection and representation of global uncertainty.

  19. In vitro study of temperature changes in root during Er:YAG laser application; Estudo in vitro da alteracao da temperatura durante a aplicacao do Er:YAG laser intracanal

    Energy Technology Data Exchange (ETDEWEB)

    Brandao, Redson Vilela

    2001-07-01

    The temperature increase in root dentine irradiated by Er:YAG laser beam was analyzed, for different dentine thickness and different energy and frequency conditions, aiming the evaluation of Er:YAG laser in endodontic therapy, without causing any damages to close tissues. Twenty four human teeth were separated in four groups with six teeth each, and longitudinally sectioned in thickness of 0.5 mm (first group), 1,0 mm (second group), 1,5 mm (third group) and 2,0 mm (fourth group). Those samples were irradiated with the Er:YAG laser, emitting at the wavelength of 2.94{mu}m, by using a sapphire optic fiber with diameter of 0.375 mm, and forming an angle of 5 deg with the irradiated dentine surface. Three different laser energies were used in this study, 180 mJ, 160 mJ and 140 mJ, with frequencies of 10 Hz and 15 Hz. The temperature data were collected in a digital-analog system and sent to a computer for analysis. It was verified that the time for temperature increases of 5 deg in the external root walls varies according to the laser energy, repetition rate and dentine root thickness. Thus, in this work we could obtain laser parameters to avoid thermal damages in periodontal tissues. (author)

  20. Anastomose mecanica em reto extraperitoneal : (duas tecnicas de reconstrução) : estudo experimental comparativo em caes

    OpenAIRE

    Fernando Cordeiro

    1995-01-01

    Resumo: Os problemas resultantes das anastomoses no reto abaixo da reflexão peritoneal continuam sendo tema de discussões. Com o desenvolvimento de novas técnicas pode-se estender a ressecção anterior aos segmentos retais mais baixos com preservação do mecanismo esfincteriano, porém a segurança destes procedimentos está por ser estabelecida. Este estudo comparativo randomizado entre duas técnicas de anastomose mecânica no reto de cães, abaixo da reflexão peritoneal, permitiu a elaboração de...

  1. Comparison of three contrast radiographic techniques in the dog large intestine; Comparacion de tres tecnicas radiograficas de contraste en el intestino grueso del perro

    Energy Technology Data Exchange (ETDEWEB)

    Vargas, L.; Thibaut, J.; Olhaberry, E.; Born, R.; Deppe, R. [Universidad Austral de Chile, Valdivia (Chile)

    1994-07-01

    In order to compare three radiographic techniques -pneumocolon, barium enema and double contrast- in the large intestine of the dog, three radiographic series in ventrodorsal and right lateral projections were taken. Six healthy adult dogs of both sexes with an approximate weight between 5 to 10 kg were used. Three enemas were administered 24, 12 and 2 hrs. before the series of radiographs were taken. Then dogs were anaesthetized with sodium tiopental (20 mg/kg iv) and the contrast media were introduced. Pneumocolon was carried out in the first series introducing air (20 cc/kg) in the large intestine through a Foley rectal catheter. Radiographs were taken in both projections, after 5 and 15min. respectively. Barium enema was performed in the second series introducing barium sulfate (18%) in the large intestine through a Foley rectal catheter (25 cc/kg); 5 and 15 min. later, the radiographs were taken. In the third series -double contrast- the barium sulfate, which was obtained from each dog using a catheter, was substituted by a volume of air equal to that obtained from the contrast medium. Later the radiographs were taken in both projections. The radiographic plates of each series were analized comparing the characteristics of: radiographic density, outline and volume. With the pneumocolon barium enema and double contrast, the radiographic density was, in most cases, low, high and inter-mediate respectively. The radiographic outline was, in most cases, regular for the three techniques. Thee radiographic volume was similar in all of the series. From the results obtained, it is concluded that double contrast best outlines the intestinal mucosa and more information can be obtained from it [Spanish] Con la finalidad de comparar tres tecnicas radiograficas del intestino grueso del perro -neumocolon, enema baritado y doble contraste-, se tomaron tres series radiograficas en proyeccion ventrodorsal y lateral derecha en 6 perros adultos, de 5 a 10 kg de peso, que

  2. Clinical Photoscintillography: Technique and Applications; Photoscintigraphie Clinique: Methode et Applications; Klinicheskaya fotostsintillografiya: metodika i primenenie; Fotocentelleografia Clinica: Tecnicas y Aplicaciones

    Energy Technology Data Exchange (ETDEWEB)

    Ephraim, K. H. [Rotterdamsch Radio-Therapeutisch Instituut, Rotterdam (Netherlands)

    1964-10-15

    ' de exploracion. La intensidad luminosa y la frecuencia de los destellos de esta ultima varian con el indice de recuento, obteniendose asi una respuesta no lineal sin introducir la inercia de un circuito integrador. Los destellos 'secundarios' se registran sobre pelicula. Para impedir la perdida de datos debido a su registro en la region de saturacion de la curva de sensibilidad de la pe licu la, se utiliza una amplificacion de contraste moderada y la pelicula se examina en un circuito de television industrial. El autor subraya la necesidad de adaptar las condiciones de colimacion al problema clinico que haya de resolverse. En la memoria se examinan las aplicaciones clinicas de esta tecnica al estudio de enfermedades tiroideas, renales, hepaticas y oseas. (author) [Russian] Pri primenenii fotoscintillografii v klinike ogromnoe znachenie imejut kollimacija, u si l e nie kontrastnosti i nakoplenie dannyh. Dlja obnaruzhenija ogranichennyh uchastkov porazhenija v takih plotnyh organah, kak pechen' i mozg , byl razrabotan special'nyj 36-kanal'nyj mnogofokusnyj kollimator. Demonstrirujutsja izochuvstvitel'nye linii jet o go kollimator a . E go chuv stvitel'nost' malo m en ja et sja ot poverhnosti do glubiny, ravnoj naibol'shej tolshhine pecheni. Byl postr oen special'nyj usilitel' kontrastnosti: nebol'shaja ''pervichnaja'' lampa nakalivanija, soedinennaja cherez impul'snyj usilitel' na vyhode odnokanal'nogo an a l i za t or a upravlja etsja s pomoshh'ju za vi sim o go ot svetareostata (ZSR). Soprotovlenie 3 SR izmenja etsja v zavisimosti ot sk or o sti . Posledovatel'no po otnosheniju k ZSR s o edinena skennirujushhaja ''vtorichnaja'' lampa nakalivanija. Jarkost', a takzhe chastota vspyshek poslednej zavisit ot skorosti scheta i tem samym nelinejnaja chuvstviteltnost' dostigaetsja b e z vvedenija inercionnogo k on tura. ''Vtorichnye'' vspyshki re gi str i rujut sja na p lenk e. S cel'ju predotvrashhenija poteri informacii pri registracii v oblasti nasyshhenija krivoj chuv

  3. Voltage stability evaluation facing small disturbances by means of the modal analysis technique; Evaluacion de la estabilidad de voltaje ante disturbios pequenos mediante la tecnica de analisis modal

    Energy Technology Data Exchange (ETDEWEB)

    Leon Rodriguez, Daniel

    2000-12-15

    . Estos aspectos han provocado que dichos sistemas operen con margenes de seguridad mas limitados y que su estabilidad tenga que ser analizada de una manera confiable y precisa. Tomando en cuenta los aspectos arriba mencionados, a medida que los sistemas electricos han tenido que operar en condiciones mas forzadas para satisfacer la demanda de la carga, los problemas de estabilidad de voltaje se han presentado con mayor frecuencia provocando serios disturbios y en algunos casos, hasta apagones totales. Ante la ocurrencia de estos problemas, el analisis de establidad de voltaje ha cobrado cada vez mayor importancia en los estudios de las companias suministradoras de energia electrica provocando con esto que se destinen mayores recursos para la investigacion de este fenomeno con el proposito de comprenderlo y desarrollar tecnicas y herramientas que permitan estudiarlo de una manera mas completa. El analisis modal es una de las mas recientes tecnicas en estado estable la cual, desde su aparicion ha tenido un gran auge debido a la valios y rapida informacion que proporciona, ademas de su facilidad de implementacion y el poco esfuerzo computacional que requiere. En este trabajo se realiza la evaluacion de la estabilidad de voltaje d eun sistema electrico real aplicando de manera conjunta la tecnica de analisis modal con otras tecnicas convencionales como las curvas P-V y V-Q. Se ilustra tambien la manera en que la distinta informacion obtenida de estas tecnicas se complementa para lograr un estudio de estabilidad de voltaje mas completo y representativo. Ademas de analizar la estabilidad de voltaje para las condiciones normales de operacion (caso base), se evaluan tambien tres distintas alternativas de compensacion reactiva capacitiva con objeto de mejorar el margen o distancia a la inestabilidad de voltaje del sistema. Los resultado obtenidos con cada una de las opciones de compensacion son analizados y comparados entre si para finalmente proponer la alternativa que presente

  4. Magnetic nanoparticles for cancer therapy; Nanoparticulas magneticas para o tratamento do cancer

    Energy Technology Data Exchange (ETDEWEB)

    Bakuzis, Andris F. [Universidade Federal de Goias (UFG), Goiania, GO (Brazil). Instituto de Fisica

    2014-07-01

    terapeutico para esta inovadora tecnica nao invasiva e altamente localizada. Nesta palestra iremos discutir resultados da literatura e do nosso proprio grupo no tratamento de cancer usando a hipertermia magnetica. Diversos tipos de nanoparticulas magneticas sugeridas para esta aplicacao serao apresentados assim como a evolucao historica deste tratamento, que apesar de ter sido sugerido em meados da decada de 50, so mais recentemente foi aprovado na Europa para tratamento de seres humanos com tumores do cerebro. (author)

  5. Self-referencing thermometry in the nanoscale =

    Science.gov (United States)

    Brites, Carlos Antonio Delgado Sousa

    Na ultima decada emergiu uma linha de investigacao muito activa em termometros nao invasivos e precisos que possam determinar temperatura a escala nanometrica. Esta investigacao foi fortemente estimulada pelas numerosas solicitacoes da nanotecnologia e da biomedicina, por exemplo. Uma das abordagens mais promissoras propoe o uso de ioes trivalentes de lantanideos que apresenta propriedades fotoluminescentes que dependem da temperatura. Neste trabalho demonstra-se que esta tecnica combina as vantagens de te um limite de deteccao de 0.5 graus com sensibilidade ate 4.5 % K-1. Este termometro molecular pode ser processado em filmes finos ou nanoparticulas, abrindo os campos de aplicacao a diferentes utilizacoes. As nanoparticulas de silica produzidas sao caracterizadas na presenca e na ausencia de ioes lantanideos. Sem o metal, as nanoparticulas de APTES/TEOS demonstram ser luminescentes sob excitacao UV sem necessidade de utilizar qualquer tratamento termico. O rendimento quantico de emissao depende apenas da proporcao dos silanos e pode atingir o valor de 0.15 +/- 0.02. A co-dopagem destas nanoparticulas com Eu3+ e Tb3+ permite obter sondas com resposta raciometrica, com a possibilidade de ajustar a gama de temperaturas de operacao e a sensibilidade, via desenho inteligente da matriz de suporte e dos ligandos de beta-dicetona que estao coordenados ao iao metalico. Quando processados como filmes, este termometro permite o mapeamento de temperaturas com resolucao espacial 1.8 mum. A racionalizacao da dependencia de temperatura e uma ferramenta util para desenvolver termometros que operam em gamas de temperatura especificos (e.g. gama de temperatura fisiologica, 290-340 K) com sensibilidade acima de 0.5 % K-1. A combinacao de esforcos de um grande numero de diversas disciplinas ira previsivelmente permitir o surgimento de termometros moleculares novos e sofisticados, preenchendo os principais requisitos das nanociencias.

  6. O cerne da matéria a aventura científica que levou à descoberta do bóson de Higgs

    CERN Document Server

    Rosenfeld, Rogério

    2013-01-01

    Com quase trinta quilometros de circunferencia e instalado a uma profundidade de aproximadamente 100 metros, o acelerador de particulas lhc, sigla para Large Hadron Collider, e uma das grandes expressoes do engenho humano, comparavel em escopo apenas a exploracao espacial e ao mapeamento do genoma. Num projeto de mais de duas decadas, que envolveu milhares de engenheiros e pesquisadores de cerca de cem paises, e que contou com o envolvimento de dezenas de universidades e centros de pesquisa, o lhc foi concebido com o intuito de aumentar nosso entendimento acerca da estrutura da materia e do cosmos. Alem de levar ao limite do possivel as investigacoes de ponta da fisica de particulas, o lhc e tambem um celeiro de tecnologias que tiveram grande impacto em nosso cotidiano, das tecnicas modernas de ressonancia ao proprio surgimento da internet. Situado na fronteira entre a Franca e a Suica, e gerido pelo cern, um consorcio europeu de pesquisa nuclear, o lhc foi o responsavel por desvendar recentemente um dos mai...

  7. Utilization of the computational technic for the promotion and diffusion of the energy conservation practice; Utilizacion de tecnicas computacionales para promocionar y difundir el ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Kemper Valverde, N. [Laboratorio de Inteligencia Artificial, Instituto de Ingenieria, UNAM, Mexico D. F. (Mexico)

    1995-12-31

    In this paper are presented the developments obtained through the application of the new computational technologies in the diffusion and promotion tasks of energy efficient use and conservation. The most relevant aspects are described of three multimedia courses that were designed in order to increase the possibilities of offering personal training in efficient energy technic, as well as to have on hand totally open consulting and interactive tools. The courses that are described are: ``Design of Energy Conservation Programs for the Industry``, ``Energy Conservation in Combustion Equipment`` and ``Energy Cogeneration Technologies.`` On another subject, an analysis is also made of the possibilities for the development and application of expert systems that advise and give support to the work of technicians and engineers dedicated to energy conservation. The main characteristics of an expert system to give support to the energy analysis of lighting industrial systems, malls, buildings and hotels are also described. [Espanol] En este trabajo se presentan los desarrollos obtenidos por la aplicacion de las tareas de difusion y promocion del uso eficiente y ahorro de energia. Se describen los aspectos mas relevantes de tres cursos multimedia que fueron disenados con el objeto de incrementar las posibilidades de brindar capacitacion individualizada en tecnicas energeticas eficientes, asi como de contar con herramientas de consulta totalmente abiertas e interactivas. Los cursos que se describen son: ``Diseno de Programas de Ahorro de Energia en la Industria,`` ``Ahorro de Energia en Equipos de Combustion`` y ``Tecnologias de Cogeneracion de Energia.`` Por otro lado, tambien se hace un analisis de las posibilidades para el desarrollo y aplicacion de sistemas expertos que asesoren y apoyen el trabajo de tecnicos e ingenieros dedicados al ahorro de energia. Se describen las caracteristicas principales de un sistema experto disenado para brindar apoyo en analisis energeticos

  8. Utilization of the computational technic for the promotion and diffusion of the energy conservation practice; Utilizacion de tecnicas computacionales para promocionar y difundir el ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Kemper Valverde, N [Laboratorio de Inteligencia Artificial, Instituto de Ingenieria, UNAM, Mexico D. F. (Mexico)

    1996-12-31

    In this paper are presented the developments obtained through the application of the new computational technologies in the diffusion and promotion tasks of energy efficient use and conservation. The most relevant aspects are described of three multimedia courses that were designed in order to increase the possibilities of offering personal training in efficient energy technic, as well as to have on hand totally open consulting and interactive tools. The courses that are described are: ``Design of Energy Conservation Programs for the Industry``, ``Energy Conservation in Combustion Equipment`` and ``Energy Cogeneration Technologies.`` On another subject, an analysis is also made of the possibilities for the development and application of expert systems that advise and give support to the work of technicians and engineers dedicated to energy conservation. The main characteristics of an expert system to give support to the energy analysis of lighting industrial systems, malls, buildings and hotels are also described. [Espanol] En este trabajo se presentan los desarrollos obtenidos por la aplicacion de las tareas de difusion y promocion del uso eficiente y ahorro de energia. Se describen los aspectos mas relevantes de tres cursos multimedia que fueron disenados con el objeto de incrementar las posibilidades de brindar capacitacion individualizada en tecnicas energeticas eficientes, asi como de contar con herramientas de consulta totalmente abiertas e interactivas. Los cursos que se describen son: ``Diseno de Programas de Ahorro de Energia en la Industria,`` ``Ahorro de Energia en Equipos de Combustion`` y ``Tecnologias de Cogeneracion de Energia.`` Por otro lado, tambien se hace un analisis de las posibilidades para el desarrollo y aplicacion de sistemas expertos que asesoren y apoyen el trabajo de tecnicos e ingenieros dedicados al ahorro de energia. Se describen las caracteristicas principales de un sistema experto disenado para brindar apoyo en analisis energeticos

  9. UNA TECNICA ESTADISTICA PARA MEDIR LA CONFLICTIVIDAD SOCIAL A TRAVES DEL REGISTRO ARQUEOLOGICO (A Statistical Technique to Measure Social Conflict through the Archaeological Record

    Directory of Open Access Journals (Sweden)

    Pascual Izquierdo-Egea

    2015-03-01

    Full Text Available Se presenta aqui una tecnica estadistica para medir la conflictividad social a traves del registro mortuorio. Nace al amparo del metodo de valoracion contextual empleado en el analisis de los ajuares funerarios desde 1993. Se trata de una herramienta fundamental para el desarrollo de la arqueologia de los fenomenos sociales, cuyos relevantes resultados empiricos avalan su trascendencia teorica. Tras proceder a su conceptualizacion en funcion de la desigualdad social y la riqueza relativa, se explican las dos clases de conflictividad social definidas: estructural o estatica y coyuntural o dinamica. Finalmente, se incluyen sus conexiones con la ley demografica de Malthus a traves de sus dos parametros: poblacion y recursos. Todo este entramado teorico se ilustra con algunas aplicaciones referidas a las civilizaciones antiguas, abarcando la protohistoria iberica, la Mesoamerica prehispanica o la Roma altoimperial. ENGLISH: A statistical technique to measure social conflict through the mortuary record is presented here. It is born under the contextual valuation method used in the analysis of grave goods since 1993. This is a fundamental tool for the development of the archaeology of social phenomena, whose relevant empirical results support its theoretical significance. After conveying its conceptualization in terms of social inequality and relative wealth, the two classes of social conflict are explained: static or structural and dynamic or conjunctural. Finally, connections with the Malthusian demographic law through its two parameters—population and resources—are included. The synthesis of these theoretical frameworks is illustrated with applications to ancient civilizations, including Iberian protohistory, prehispanic Mesoamerica, and early imperial Rome.

  10. Analysis of the feasibility of applying the theory of the supply chain nanagement for the electric energy chain services of the Bahia state, Brazil; Analise da viabilidade de aplicacao da teoria da gestao da cadeia de suprimentos para a cadeia de servicos de energia eletrica do estado da Bahia

    Energy Technology Data Exchange (ETDEWEB)

    Leal, Lydiane Abdon [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil)], e-mail: lydianeleal@yahoo.com.br; Carvalho, Claudio Bezerra de [Petroleo Brasileiro S.A. (PETROBRAS), Rio de Janeiro, RJ (Brazil). Petroleo e Gas], e-mail: claudiobcarvalho@yahoo.com.br

    2008-07-01

    This article aims to analyze the potential application of integrated management, through concepts of SCM (Supply Chain Management), in the chain of the energy industry, which is characterized by a chain of services. The prospect of incorporating new integrated management practices, through the selection of concepts and tools for supply chain management took the possibility of promoting systemic approach that includes the major components (physical, regulatory and commercial) the market of electric energy, investigating possibilities of reorganization of this important segment of the industry production chain. The proposal aims to provide a tool for planning indicative of great potential, to identify a theoretical reference in this important productive sector. The work includes qualitative analyses, which aim to map, understand and systematize the changes undertaken, with emphasis on Brazilian electric sector. It is described, in general, the characterization of the energy industry in Bahia state as a possible case study in implementing the proposed methodology. Thus, the work seeks to help the staff decision to purchase a minimum of integrated vision of possible decisions, including the dynamic interactions between market supply and demand. (author)

  11. The optimization of electric motors repair techniques as a mean for electric energy saving; La optimizacion de las tecnicas de reparacion de motores electricos como un medio para ahorrar energia electrica

    Energy Technology Data Exchange (ETDEWEB)

    Zagal Leon, Juan Ruben [Fideicomiso para el Ahorro de Energia Electrica (FIDE), Mexico, D. F. (Mexico)

    1998-12-31

    This paper presents, in a very concise, which are the techniques to optimize the electric motors repair made by the Fideicomiso para el Ahorro de Energia Electrica (FIDE), the loss of efficiency that might exist after repairing an electric motor, as well as the procedures to perform an optimum reparation of the electric motors. Furthermore, some recommendations are given for the selection of an adequate rewinding shop to guarantee that the motor does not suffer efficiency losses after its repair. [Espanol] Este trabajo presenta, de manera muy concreta, cuales son las tecnicas para optimizar las tecnicas de reparacion de motores electricos realizado por el Fideicomiso para el Ahorro de Energia Electrica (FIDE), el nivel de perdida de eficiencia que puede existir despues de reparar un motor electrico, asi como los procedimientos para realizar una optima reparacion en motores electricos. Asimismo, se proporcionan algunas recomendaciones para seleccionar un taller de reembobinado adecuado para garantizar que el motor no sufra perdidas de eficiencia despues de su reparacion.

  12. The optimization of electric motors repair techniques as a mean for electric energy saving; La optimizacion de las tecnicas de reparacion de motores electricos como un medio para ahorrar energia electrica

    Energy Technology Data Exchange (ETDEWEB)

    Zagal Leon, Juan Ruben [Fideicomiso para el Ahorro de Energia Electrica (FIDE), Mexico, D. F. (Mexico)

    1999-12-31

    This paper presents, in a very concise, which are the techniques to optimize the electric motors repair made by the Fideicomiso para el Ahorro de Energia Electrica (FIDE), the loss of efficiency that might exist after repairing an electric motor, as well as the procedures to perform an optimum reparation of the electric motors. Furthermore, some recommendations are given for the selection of an adequate rewinding shop to guarantee that the motor does not suffer efficiency losses after its repair. [Espanol] Este trabajo presenta, de manera muy concreta, cuales son las tecnicas para optimizar las tecnicas de reparacion de motores electricos realizado por el Fideicomiso para el Ahorro de Energia Electrica (FIDE), el nivel de perdida de eficiencia que puede existir despues de reparar un motor electrico, asi como los procedimientos para realizar una optima reparacion en motores electricos. Asimismo, se proporcionan algunas recomendaciones para seleccionar un taller de reembobinado adecuado para garantizar que el motor no sufra perdidas de eficiencia despues de su reparacion.

  13. Environmental Impact Report from Santa Rita Hydroelectric Power Plant (Minas Gerais State - Brazil): technical strategic for its elaboration; Relatorio de Impacto Ambiental da Usina Hidreletrica da Santa Rita (MG): estrategica tecnica para sua elaboracao

    Energy Technology Data Exchange (ETDEWEB)

    Souza, J.A. de; Marques Neto, F P [Companhia Energetica de Minas Gerais (CEMIG), Belo Horizonte, MG (Brazil)

    1990-12-31

    The steps for developing the technical strategies used on the elaboration of Environmental Impact Report from Santa Rita Hydroelectric Power Plant, Minas Gerais State, are described, including the influence area, technical requirements, impact identification, technical selection of mitigative measures, impact meaning and strategy for evaluating the identified impacts. (C.G.C.).

  14. Biosynthetic origin of acetic acid using SNIF-NMR; Determinacao da origem biossintetica de acido acetico atraves da tecnica 'Site Specific Natural Isotopic Fractionation Studied by Nuclear Magnetic Resonance (SNIF-NMR)'

    Energy Technology Data Exchange (ETDEWEB)

    Boffo, Elisangela Fabiana; Ferreira, Antonio Gilberto [Sao Carlos Univ., SP (Brazil). Dept. de Quimica

    2006-05-15

    The main purpose of this work is to describe the use of the technique Site-Specific Natural Isotopic Fractionation of hydrogen (SNIF-NMR), using {sup 2}H and {sup 1}H NMR spectroscopy, to investigate the biosynthetic origin of acetic acid in commercial samples of Brazilian vinegar. This method is based on the deuterium to hydrogen ratio at a specific position (methyl group) of acetic acitained by fermentation, through different biosynthetic mechanisms, which result in different isotopic ratios. We measured the isotopic ratio of vinegars obtained through C{sub 3}, C{sub 4}, and CAM biosynthetic mechanisms, blends of C{sub 3} and C{sub 4} (agrins) and synthetic acetic acid. (author)

  15. Precision of dual energy X-ray absorptiometry for body composition measurements in cats; Precisao da tecnica de absorciometria de raios-X de dupla energia na determinacao da composicao corporal em gatos

    Energy Technology Data Exchange (ETDEWEB)

    Borges, N.C. [Universidade Federal de Goias (UFG), Goiania, GO (Brazil). Escola de Veterinaria]. E-mail: naida@vet.ufg.br; Vasconcellos, R.S.; Canola, J.C.; Carciofi, A.C.; Pereira, G.T. [UNESP, Jaboticabal, SP (Brazil). Faculdade de Ciencias Agrarias e Veterinarias; Paula, F.J.A. [Universidade de Sao Paulo (USP), Ribeirao Preto, SP (Brazil). Faculdade de Medicina

    2008-07-01

    A short-term precision error of the individual subject and the DEXA technique, such as the effect of the repositioning of the cat on the examination table, were established. Four neutered adult cats (BW=4342 g) and three females (BW=3459 g) were submitted to five repeated scans with and without repositioning between them. Precision was estimated from the mean of the five measurements and expressed by the individual coefficient of variation (CV). The precision error of the technique was estimated by the variance of scan pool (n=35) and expressed in CV for the technique (CVt). The degrees of freedom and confidence intervals were determined to avoid underestimation of precision errors. Bone mineral content (BMC), lean mass (LM), and fat mass (FM) averages were higher (P<0.05) when animals were repositioned. The CVt was significantly higher (P<0.05) for bone mineral density (BMD), LM, and FM when the animals were repositioned. For short-term precision measurements, the repositioning of the animal was important to establish the precision of the technique. The dual energy xray absorptiometry method provided precision for body composition measurements in adult cats. (author)

  16. Model for prioritization of regional strategies within the technical cooperation of the International Atomic Energy Agency; Modelo para priorizacao de estrategias regionais no ambito da cooperacao tecnica da Agencia Internacional de Energia Atomica

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Pedro Maffia da

    2017-11-01

    The International Atomic Energy Agency's Technical Cooperation Program is the main mechanism through which services are provided to its member states to help them build, strengthen and maintain their capabilities in the safe use of nuclear technology in support of socio-economic development. The technical cooperation program operates in four geographical regions, each regional program helps Member States to meet their specific needs, taking into account existing capacities and different operating conditions. The technical cooperation regions are Asia and the Pacific, Europe, Africa and Latin America and the Caribbean. Developing activities together with the technical cooperation program we have the Regional Cooperation Agreement for the Promotion of Nuclear Science and Technology in Latin America and the Caribbean (ARCAL), which involves the majority of the members of the International Atomic Energy Agency of that region, for Technical Cooperation. All ARCAL's work is guided by the Regional Strategic Profile, which identifies the needs and problems of the region that require support projects. In the technical meeting of the Regional Strategic Profile, the needs and problems that are analyzed through indexes associated with severity, urgency, extension, relevance and difficulty are listed by different thematic areas. To these indexes, values are established by the technical staff on a continuous scale between 1 and 5. From these values an expression is used to arrive at a priority number for the needs and problems. In the face of many criticisms associated with similar approaches, such as Failure Modes and Effects Analysis, and Timing, Trend and Impact Matrix, the aim of this thesis is to propose a methodological approach that can assist in the prioritization of investments of technical cooperation projects and programs that take into account the budget available and the technical and strategic visions of the parties involved. For this, the Probabilistic Composition of Preferences and the Analytical Hierarchical Process are combined at different levels. The probabilistic composition of preference is to consider, through a distribution of probabilities, the subjective uncertainties inherent to the process. In turn, the analytical hierarchical process aims at obtaining the strategic weights for the considered indexes. The results obtained demonstrate the effectiveness of the proposed approach to this class of problems. (author)

  17. Investigation of the corrosion resistance of Ti-13Nb-13Zr alloy by electrochemical techniques and surface analysis; Investigacao da resistencia a corrosao da liga Ti-13Nb-13Zr por meio de tecnicas eletroquimicas e de analise de superficie

    Energy Technology Data Exchange (ETDEWEB)

    Assis, Sergio Luiz de

    2006-07-01

    In this work, the in vitro corrosion resistance of the Ti-13Nb-13Zr alloy, manufactured at a national laboratory, and used for orthopedic applications, has been investigated in solutions that simulate the body fluids. The electrolytes used were 0.9 % (mass) NaCl, Hanks' solution, a culture medium (MEM), and the two last electrolytes, without and with addition of hydrogen peroxide. The aim of peroxide addition was to simulate the conditions found when inflammatory reactions occur due to surgical procedures. The corrosion resistance of alloys commercially in use as biomaterials, Ti-6Al-7Nb and Ti-6Al-4V, as well as of the pure titanium (Ti-cp), was also studied for comparison with the Ti-13Nb-13Zr alloy. The corrosion resistance characterization was carried out by electrochemical and surface analysis techniques. The electrochemical tests used were: open circuit potential measurements as a function of tim; potentiodynamic polarization; and electrochemical impedance spectroscopy (EIE). The impedance experimental diagrams were interpreted using equivalent electric circuits that simulate an oxide film with a duplex structure composed of an internal and compact, barrier type layer, and an external porous layer. The results showed that the corrosion resistance is due mainly to the barrier type layer. The titanium alloys and the Ti-cp showed high corrosion resistance in all electrolytes used. The oxides formed on the Ti-13Nb-13Zr, either naturally or during immersion in MEM ar Hank's solution was characterized by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (MEV). The results showed that the presence of hydrogen peroxide in MEM promotes the growth of the porous layer and incorporation of mineral ions, besides favouring hydroxyapatite formation. The cytotoxicity of the Ti-13Nb-13Zr alloy was also evaluated and it was shown to be non-toxic. (author)

  18. A methodology for semiautomatic taxonomy of concepts extraction from nuclear scientific documents using text mining techniques; Metodologia para extracao semiautomatica de uma taxonomia de conceitos a partir da producao cientifica da area nuclear utilizando tecnicas de mineracao de textos

    Energy Technology Data Exchange (ETDEWEB)

    Braga, Fabiane dos Reis

    2013-07-01

    This thesis presents a text mining method for semi-automatic extraction of taxonomy of concepts, from a textual corpus composed of scientific papers related to nuclear area. The text classification is a natural human practice and a crucial task for work with large repositories. The document clustering technique provides a logical and understandable framework that facilitates the organization, browsing and searching. Most clustering algorithms using the bag of words model to represent the content of a document. This model generates a high dimensionality of the data, ignores the fact that different words can have the same meaning and does not consider the relationship between them, assuming that words are independent of each other. The methodology presents a combination of a model for document representation by concepts with a hierarchical document clustering method using frequency of co-occurrence concepts and a technique for clusters labeling more representatives, with the objective of producing a taxonomy of concepts which may reflect a structure of the knowledge domain. It is hoped that this work will contribute to the conceptual mapping of scientific production of nuclear area and thus support the management of research activities in this area. (author)

  19. Investigation of the corrosion resistance of Ti-13Nb-13Zr alloy by electrochemical techniques and surface analysis; Investigacao da resistencia a corrosao da liga Ti-13Nb-13Zr por meio de tecnicas eletroquimicas e de analise de superficie

    Energy Technology Data Exchange (ETDEWEB)

    Assis, Sergio Luiz de

    2006-07-01

    In this work, the in vitro corrosion resistance of the Ti-13Nb-13Zr alloy, manufactured at a national laboratory, and used for orthopedic applications, has been investigated in solutions that simulate the body fluids. The electrolytes used were 0.9 % (mass) NaCl, Hanks' solution, a culture medium (MEM), and the two last electrolytes, without and with addition of hydrogen peroxide. The aim of peroxide addition was to simulate the conditions found when inflammatory reactions occur due to surgical procedures. The corrosion resistance of alloys commercially in use as biomaterials, Ti-6Al-7Nb and Ti-6Al-4V, as well as of the pure titanium (Ti-cp), was also studied for comparison with the Ti-13Nb-13Zr alloy. The corrosion resistance characterization was carried out by electrochemical and surface analysis techniques. The electrochemical tests used were: open circuit potential measurements as a function of tim; potentiodynamic polarization; and electrochemical impedance spectroscopy (EIE). The impedance experimental diagrams were interpreted using equivalent electric circuits that simulate an oxide film with a duplex structure composed of an internal and compact, barrier type layer, and an external porous layer. The results showed that the corrosion resistance is due mainly to the barrier type layer. The titanium alloys and the Ti-cp showed high corrosion resistance in all electrolytes used. The oxides formed on the Ti-13Nb-13Zr, either naturally or during immersion in MEM ar Hank's solution was characterized by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (MEV). The results showed that the presence of hydrogen peroxide in MEM promotes the growth of the porous layer and incorporation of mineral ions, besides favouring hydroxyapatite formation. The cytotoxicity of the Ti-13Nb-13Zr alloy was also evaluated and it was shown to be non-toxic. (author)

  20. Study of Rn-222 exhalation in phosphogypsum through the adsorption technique in activated coal; Estudo da exalacao de Rn-222 em fosfogesso por meio da tecnica de adsorcao em carvao ativado

    Energy Technology Data Exchange (ETDEWEB)

    Nisti, Marcelo Bessa; Campos, Marcia Pires de, E-mail: mbnisti@ipen.b, E-mail: mpcampos@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-10-26

    The radon exhalation was estimated through the adsorption in activated carbon technique. Classified as TENORM, the radon exhalation determination on the phosphogypsum piles was performed through the adsorption ratio of radon in activated carbon, from the concentration of descendants of {sup 222}Rn, {sup 214}Pb and {sup 214}Bi obtained by gamma spectrometry. The results obtained in this work were compatibles with the values found in the literature

  1. «O Nome da Rosa», romance de transcrição e de metalinguagem

    Directory of Open Access Journals (Sweden)

    Eliana Lourenço de Lima Reis

    2011-10-01

    Full Text Available O trabalho procura estudar O Nome da Rosa sob dois aspectos: como romance de transcrição, focalizando a figura do narrador, e também como metalinguagem. Como se trata de um livro sobre livros, Umberto Eco chama a atenção para o caráter intertextual e fenomênico da escrita. Seu uso das técnicas do romance policial visa ao mesmo tempo distrair o leitor e apresentar um modelo de interpretação tanto de um mundo feito de sinais, quanto do próprio texto. O livro torna-se, então, uma versão ficcional de sua pesquisa sobre semiótica e comunicação.Codesto studio de Il Nome della Rosa focalizza due aspectti: quello del metalinguaggio e quello del romanzo di transcrizione, valorizzando il ruolo del narratore. Sicomme è un libro sui libri, Umberto Eco fa risaltare il carattere intertestuale e fenomenico della scrittura. L'impiego delle tecnica di costruzione del giallo mira a intrattenere il lettore e contemporaneamente offre una chiave interpretativa del testo stesso e di un mondo di segni. Il romanzo si trasforma cosi un una versione fittizia della sua ricerca si semiotica e di comunicazione.

  2. Valdose program: methodologies for dose assessment in internal contamination, 1997 census; Programma valdose: metodologie di valutazione della dose da contaminazione interna, censimento 1997

    Energy Technology Data Exchange (ETDEWEB)

    Castellani, C.M.; Battisti, P.; Tarroni, G. [ENEA, Centro Ricerche `Ezio Clementel`, Bologna (Italy). Dip. Ambiente

    1998-12-31

    Dose assessment in internal dosimetry needs computational and interpretative tools that allow carrying out, as a first step, an evaluation of intake on the base of bioassay measurements or WBC measurements, and as a second step, dose evaluation on the base of estimated intake. In the frame of the MIDIA Co-ordination (WBC operating in Italy), in the first months of 1997 a census on methodologies for dose evaluation in internal contamination has been proposed. A technical form has been sent to all the WBC Centres allowing an accurate description of modalities used in each centre. 9 out of 17 centres sent the answers to the technical form in time. In this paper all the forms filled in are reported. A careful comparative evaluation of the answers has been made both for routine monitoring and for special monitoring. The various radionuclides present in the Italian reality, calculation methodologies both for intake and dose, hypotheses adopted for date, path and modalities of contaminations are also presented. Proposals for conforming to the methodology in Italy after the introduction of the models following ICRP 60 publication that are the base of the Euratom 96/29 Directive are also discussed. [Italiano] La valutazione di dose in contaminazione interna necessita di strumenti interpretativi che permettano di effettuare in una prima la valutazione dell`intake sulla base delle misure dei campioni biologici o del corpo intero (WBC), ed in una seconda fase la valutazione della dose sulla base dell`intake. All`interno del coordinamento MIDIA dei WBC operanti in Italia e` stato proposto, nel primo trimestre del 1997, un censimento sulle metodologie di valutazione di dose da contaminazione interna. Ai diversi centri e` stato inviato una scheda tecnica che, mediante un particolareggiato schema di domande, aiutava i diversi centri nella esposizione delle modalita` di valutazione di dose che ogni centro segue. 9 au 17 centri WBC operanti al momemnto in Italia hanno inviato la

  3. Filosofia da análise da estabilidade da liquidez

    Directory of Open Access Journals (Sweden)

    Rodrigo Antônio Chaves da Silva

    2005-07-01

    Full Text Available A informação foi considerada finalidade de nosso conhecimento, até o período em os pensadores e pesquisadores da contabilidade passaram a raciocinar sobre o conteúdo e o significado dos informes. Nesta busca da razão sobre os estados patrimoniais, surgiu a análise contábil que procura por meio de relações e identidades, o significado da dinâmica expressa da estaticamente na informação. O primeiro aspecto que surgiu no objeto de análise foi o estudo da liquidez, que é um dos principais exercícios do patrimônio. A estabilidade também é outro exercício básico e imprescindível, pois este é que promove o equilíbrio do organismo administrativo. A ciência contábil após a sua dignidade científica passou a trilhar caminhos esplendorosos, amparados em doutrina que permite alcançar os píncaros filosóficos. Os estudos concernentes aos aspectos de interação da estabilidade na liquidez são, complexos e somente com os recursos filosóficos da contabilidade se pode estudá-los com o panorama holístico e sublime. A filosofia da contabilidade não é alheia às suas práticas tecnológicas, podendo buscar pontos sublimes de panoramas abrangentes, para o estudo analítico da liquidez e estabilidade, observando todas as dimensionalidades e essencialidades de acontecimentos, na comprovação e orientação dos estados de ineficácia e eficácia patrimonial.

  4. Exploitation of biogas in municipal in slaughterhouses: Technical-economical evaluation; Aprovechamiento de biogas en rastros y mataderos municipales: Evaluacion tecnica-economica

    Energy Technology Data Exchange (ETDEWEB)

    Martinez Hernandez, Donaji A; Castaneda Sanchez, Arlem M; Garcia Galeana, Erika [Universidad Nacional Autonoma de Mexico (UNAM), Facultad de Ingenieria (Mexico)

    2009-07-01

    Nowadays the treatment of the solid and liquid remainders in the municipal slaughter houses is small because of the idea that the treatment is expensive; nevertheless, it is important to take advantage of them, since this can reduce to the environmental impacts they cause, as well as the discharge of greenhouse effect gas. The use of bio digesters for the treatment of these remainders has become an efficient process to avoid the exit of methane gas to the atmosphere, taking advantage of the biogas and other residues to produce electricity. The elaboration of a technical-economical evaluation of a pilot plant shows the costs of investment, maintenance, as well as the income that can be obtained by the total usage of these residues and the savings in the electrical power consumption. The analysis of this study demonstrates that the use of biogas through bio-digesters for the generation of electrical energy is a profitable option for the treatment of the residues, because the income by the sale of compost, blood flour, as well as the diminution of the electrical tariff, justifies the initial investment. These projects will be more attractive, if they use financing and are registered as MDL projects. [Spanish] Actualmente el tratamiento de los desechos solidos y liquidos en los rastros y mataderos municipales es poco pues se tiene la idea de que el tratamiento es costoso; sin embargo, es importante que se aprovechen ya que esto puede reducir los impactos ambientales que provocan, asi como la emision de gases de efecto invernadero. El uso de biodigestores para el tratamiento de estos desechos, se ha convertido en un proceso eficiente para evitar la salida de gas metano a la atmosfera, aprovechando el biogas y otros residuos para producir electricidad. La elaboracion de una evaluacion tecnica-economica de una planta piloto, muestra los costos de inversion, mantenimiento, asi como los ingresos que se pueden obtener por el aprovechamiento total de estos residuos y el

  5. Evaluation of conformal radiotherapy techniques through physics and biologic criteria; Avaliacao de tecnicas radioterapicas conformacionais utilizando criterios fisicos e biologicos

    Energy Technology Data Exchange (ETDEWEB)

    Bloch, Jonatas Carrero

    2012-07-01

    In the fight against cancer, different irradiation techniques have been developed based on technological advances and aiming to optimize the elimination of tumor cells with the lowest damage to healthy tissues. The radiotherapy planning goal is to establish irradiation technical parameters in order to achieve the prescribed dose distribution over the treatment volumes. While dose prescription is based on radiosensitivity of the irradiated tissues, the physical calculations on treatment planning take into account dosimetric parameters related to the radiation beam and the physical characteristics of the irradiated tissues. To incorporate tissue's radiosensitivity into radiotherapy planning calculations can help particularize treatments and establish criteria to compare and elect radiation techniques, contributing to the tumor control and the success of the treatment. Accordingly, biological models of cellular response to radiation have to be well established. This work aimed to study the applicability of using biological models in radiotherapy planning calculations to aid evaluating radiotherapy techniques. Tumor control probability (TCP) was studied for two formulations of the linear-quadratic model, with and without repopulation, as a function of planning parameters, as dose per fraction, and of radiobiological parameters, as the α/β ratio. Besides, the usage of biological criteria to compare radiotherapy techniques was tested using a prostate planning simulated with Monte Carlo code PENELOPE. Afterwards, prostate planning for five patients from the Hospital das Clinicas da Faculdade de Medicina de Ribeirao Preto, USP, using three different techniques were compared using the tumor control probability. In that order, dose matrices from the XiO treatment planning system were converted to TCP distributions and TCP-volume histograms. The studies performed allow the conclusions that radiobiological parameters can significantly influence tumor control

  6. Techniques Which Aid in Quantitative Interpretation of Scan Data; Methodes Facilitant l'Interpretation Quantitative des Scintigrammes; Metody, oblegchayushchie kolichestvennuyu interpretatsiyu dannykh skennirovaniya; Tecnicas Que Facilitan la Interpretacion Cuantitativa de los Datos Centelleograficos

    Energy Technology Data Exchange (ETDEWEB)

    Charleston, D. B.; Beck, R. N.; Eidelberg, P.; Schuh, M. W. [Argonne Cancer Research Hospital, Chicago, IL (United States)

    1964-10-15

    correspondant a un degre de densite de l'echelle. Ces courbes permettent la visualisation du taux de comptage pour la region consideree ou retablissement d'une carte en profil. Des scintigrammes avec ou sans accentuation du contraste et avec ou sans ' retard ' du au circuit d'integration, et des scintigrammes a traces de dimensions et de formes differentes ont e te obtenus dans les conditions statistiques identiques, au moyen de releves multiples, lors de l'exploration d'un fantome a l'aide d'un systeme a un seul detecteur. La comparaison directe de scintigrammes, associee a la representation cartographique des coups par unite de surface, fa c ilite l 'interpretation des resultats. Les positions exactes des appareils doivent etre indiquees dans les enregistrements. La difference relative (exprimee en pourcentage) de l'a c tiv ite qu'accusent les regions a examiner sur les faces opposees de la te te est calculee a partir des donnees accumulees grace a la multi-e che lle dont est muni le dispositif de scintigraphie du cerveau du Cancer Research Hospital d'Argonne. (author) [Spanish] La memoria trata de diversas tecnicas que facilitan la evaluacion e interpretacion de los datos centelleograficos. La mas sencilla es la simple calibracion interna de representaciones fotograficas; en las mas complicadas se emplea un equipo auxiliar bastante complejo para alimentar una calculadora electronica con los datos numericos acumulados durante la exploracion. Un metodo directo y sumamente u til consiste en em p le ar un generador de impulsos a leatorios para producir una cuna escalonada y calibrada de puntos que se proyecta sobre una pelicula por medio de la misma fuente luminosa empleada durante la exploracion. Ese metodo permite comparar las densidades de exposicion en las regiones de interes del centelleograma con regiones similares de la cuna, directamente calibradas en unidades de indice de recuento. El equipo auxiliar, entre el que figura un analizador multicanal empleado en forma de

  7. Strategic environmental assessment of Brazil's ethanol expansion: a methodological proposal and its preliminary application; Avaliacao ambiental estrategica da expansao de etanol no Brasil: uma proposta metodologica e sua aplicacao preliminar

    Energy Technology Data Exchange (ETDEWEB)

    Oberling, Daniel Fontana

    2008-03-15

    The main objective of this dissertation is to adapt the methodology of Strategic Environmental Assessment (SEA) to the case of ethanol fuel production in Brazil. The results are be utilized in decision-making processes as well as in the discussion on future tendencies of risks and opportunities regarding the development of ethanol as the principal renewable liquid fuel. Taking into account the international experiences of countries with a tradition in sectoral planning, SEA is found to be the instrument in public environmental management that can most adequately consider the environmental variable - beginning already at the planning stage of the ethanol industry, a necessity that has strongly unfolded itself following the deregulation of the sector in Brazil. The conflicts that may emerge from large ethanol production surpluses for export are also identified through the application of specifically designed indicators. (author)

  8. Application of Laplace transform for determination of albedo type boundary conditions for neutronic calculations; Aplicacao da transformada de Laplace para determinacao de condicoes de contorno tipo albedo para calculos neutronicos

    Energy Technology Data Exchange (ETDEWEB)

    Petersen, Claudio Zen

    2008-07-01

    In this dissertation we use the Laplace transform to derive expressions for nonstandard albedo boundary conditions for one and two non-multiplying regions at the ends of one dimensional domains. In practice, the fuel regions of reactor cores are surrounded by reflector regions that reduce neutron leakage. In order to exclude the reflector regions from the calculations, we introduce a reflection coefficient or albedo. We use the present albedo boundary conditions to solve numerically slab-geometry monoenergetic and multigroup diffusion equations using the conventional finite difference method. Numerical results are generated for fixed source and eigenvalue diffusion problems in slab geometry(author)

  9. The investment of royalties on municipality of Presidente Kennedy and the diversification of production; A aplicacao dos recursos advindos dos 'royalties' do petroleo no municipio de Presidente Kennedy e a diversificacao da producao

    Energy Technology Data Exchange (ETDEWEB)

    Zardo, Alessandro; Zardo, Bruno [Universidade de Vila Velha, MG (Brazil). Relacoes Internacionais

    2008-07-01

    After the promulgation of the Law number 9.478/97 and the magnifying of oil extraction on Field Jubarte, a significant increase of the Royalties and Special Participations could be noticed on the municipality of Presidente Kennedy. The aim of the present article is to to carry through a study about the importance of such resource on the municipality's economy and to analyse how does the shares were reinvested with the objective of minimizing the local economy's dependence from oil activities. The method adopted involved data research and analysis referent to the royalties and special participations values, as well as information regarding work market's diversification. What is persuited is to show that the amounts proceeding from the oil activities ends up responsible for financing government's machine, what disables inter-generation's justice and sector's diversification. (author)

  10. Study of corrosion resistance of AISI 444 ferritic stainless steel for application as a biomaterial; Estudo da resistencia a corrosao do aco inoxidavel ferritico AISI 444 para aplicacao como biomaterial

    Energy Technology Data Exchange (ETDEWEB)

    Marques, Rogerio Albuquerque

    2014-09-01

    Ferritic stainless steels are ferromagnetic materials. This property does not allow their use in orthopedic prosthesis. Nevertheless, in some specific applications, this characteristic is very useful, such as, for fixing dental and facial prostheses by using magnetic attachments. In this study, the corrosion resistance and cytotoxicity of the AISI 444 ferritic stainless steel, with low nickel content, extra-low interstitial levels (C and N) and Ti and Nb stabilizers, were investigated for magnetic dental attachments application. The ISO 5832-1 (ASTM F-139) austenitic stainless steel and a commercial universal keeper for dental attachment (Neo-magnet System) were evaluated for comparison reasons. The first stainless steel is the most used metallic material for prostheses, and the second one, is a ferromagnetic keeper for dental prostheses (NeoM). In vitro cytotoxicity analysis was performed by the red neutral incorporation method. The results showed that the AISI 444 stainless steel is non cytotoxic. The corrosion resistance was studied by anodic polarization methods and electrochemical impedance spectroscopy (EIS), in a saline phosphate buffered solution (PBS) at 37 °C. The electronic properties of the passive film formed on AISI 444 SS were evaluated by the Mott-Schottky approach. All tested materials showed passivity in the PBS medium and the passive oxide film presented a duplex nature. The highest susceptibility to pitting corrosion was associated to the NeoM SS. This steel was also associated to the highest dopant concentration. The comparatively low levels of chromium (nearly 12.5%) and molybdenum (0.3%) of NeoM relatively to the other studied stainless steels are the probable cause of its lower corrosion resistance. The NeoM chemical composition does not match that of the SUS444 standards. The AISI 444 SS pitting resistance was equivalent to the ISO 5832-1 pointing out that it is a potential candidate for replacement of commercial ferromagnetic alloys used in dental prosthesis. (author)

  11. Application of heterogeneous photocatalysis solar and artificial for removal of ammonia nitrogen and total phosphorus in sanitary waste water; Aplicacao da fotocatalise heterogenea solar na remocao de nitrogenio amoniacal e fosforo total em esgoto sanitario

    Energy Technology Data Exchange (ETDEWEB)

    Francisco, Adriana Ribeiro; Paterniani, Jose Euclides Stipp [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Fac. de Engenharia Agricola], E-mail: z_drica@yahoo.com.br; Kuwakino, Adriana Yuri [Universidade Estadual de Campinas (UNICAMP), Limeira, SP (Brazil). Fac. de Tecnologia

    2010-07-01

    The advanced oxidative processes (AOP) contribute or to polishing a plenty of effluent treatment, or improvement at any stage of treatment, being heterogeneous photocatalysis the most used among AOP. This study aimed to compare the heterogeneous photocatalysis in solar and artificial wastewater treatment according to the removal of ammonia nitrogen and phosphorus. The photocatalytic reactor using titanium dioxide (TiO{sub 2}) as semiconductor photocatalytic process. The heterogeneous photocatalysis using solar UV consisted material of PET bottles and the sample was added TiO{sub 2} in constant aeration for a period of 360 minutes. In the case of reactor artificial UV light protected by a quartz tube, the process was made in a Pyrex glass reactor, where the sample was undergoing 180 minutes of aeration. The photocatalytic tests for removal of ammonia nitrogen showed more favorable in the photocatalysis of artificial UV than the solar, coming achieve average efficiency of 51% and 32%, respectively. In the case of phosphorus, the situation was reversed, the solar UV photocatalytic average efficiency reached 51% and artificial UV 32 %. (author)

  12. Partner's interest conflict analysis in distribution of natural gas: a game theory approach; Analise de conflitos de interesse na distribuicao de gas natural em areas urbanas: uma aplicacao da teoria dos jogos

    Energy Technology Data Exchange (ETDEWEB)

    Prata, Bruno de Athayde; Arruda, Joao Bosco Furtado [Universidade Federal do Ceara (UFC), Fortaleza, CE (Brazil). Nucleo de Pesquisa em Logistica, Transporte e Desenvolvimento

    2004-07-01

    The use of Natural Gas is nowadays increasing in Brazilian scene and this fact shows the necessity of effective planning tasks in that sector. In the case of Natural Gas Vehicular (NGV) distribution one can face problems of actor's (distributor, retailers, customers and non-users) point of view conflicts and fuel stations expand in most Brazilian urban areas in an uncontrolled way, despising counties regulation on land use. This paper reports a study using a model based in Game Theory concepts to determine some key-variables as the number of fuel stations which must deliver NGV in a given study area. Although some information could not be available the results of simulation shows the usefulness of using such an approach to give solutions to distribution questions in NGV sector. The model was applied to the case of a district in Fortaleza city which is the study area of a project entitled Projeto GASLOG presently on process under the sponsoring of Brazilian Government, PETROBRAS and Brazilian GasEnergy Research Network. (author)

  13. Energy choice for textile industry: application of multi-criteria methods to the case of Ceara state (Brazil); Escolha de insumo energetico para o setor da industria textil: aplicacao de modelo multicriterio ao caso do Ceara

    Energy Technology Data Exchange (ETDEWEB)

    Rabelo, Clarice A.C.; Arruda, Joao Bosco F [Universidade Federal do Ceara (UFC), Fortaleza, CE (Brazil). Nucleo de Pesquisa em Logistica, Transportes e Desenvolvimento

    2004-07-01

    Brazilian energy sector has faced a series of transformations that have influence on national industry. The trial of economy globalization and the new energy sources Also available and output techniques created a more competitive business environment, where not only financial aspects are considered in industrial practices. In such environment, the industry seek for more efficient production techniques and greater importance given to environmental issues are responsible for making the decision processes associated to industrial activities more complex. In this context, the energy utilized by industry represents an important aspect of business course, justified by governmental concerns on attending all existing thermal energy demand. This paper aim is to support the decision process concerned to the choice of the best energy source to be applied in the industry. In order to reach such goal, a decision model was built based on multi criteria techniques applied to the case of textile industry in Ceara State. This sector is also one of the biggest natural gas consumers in Ceara, which has influenced on its choice in order to attend to a second goal of this paper: to focus the natural gas applications and support a greater insertion of this fuel in the market. (author)

  14. Application of operational contingency analysis as a tool to reduce loss in the energy and utility area; Aplicacao da analise de contingencia operacional como ferramenta de minimizacao de perdas na area de energia e utilidades

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Adriano Francisco dos; Alvarenga, Zenilton Galhano; Grijo, Fabio Becalli [ArcelorMittal Tubarao, ES (Brazil). Dept. de Producao de Gusa e Energia

    2009-11-01

    All new implementation of activities and equipment needs special attention regarding programming, preparation and operations performance, service and necessary interventions in order to achieve success considering operation, safety and environment. The real challenge in order to realize this change is to guarantee for the costumers the minimum interference, once it is performed on an operational routine basis. The energy distribution area from ArcelorMittal Tubarao (IGC-D) has a very important operational tool to succeed on this task: the operational contingency analysis. The objective of this paper is showing how the operational contingency analysis has been used as a tool to help IGC-D operation on preventing interruptions on supplying the internal costumers as well as keeping the maximum efficiency at the plant. (author)

  15. Characterization of solid wastes from kraft pulp industry for ceramic materials development purposes; Caracterizacao de residuos solidos da industria de celulose tipo kraft visando sua aplicacao no desenvolvimento de materiais ceramicos

    Energy Technology Data Exchange (ETDEWEB)

    Rodrigues, L.R.; Francisco, M.A.C.O.; Sagrillo, V.P.D.; Louzada, D.M.; Entringer, J.M.S. [Instituto Federal do Espirito Santo (IFES), Vitoria, ES (Brazil)

    2016-07-01

    The Kraft pulp industry generates a large amount of solid wastes. Due this large quantity, the target of this study is characterize inorganic solid wastes, dregs, grits and lime mud, from the step of reagents recovery of Kraft process, aiming evaluate the potentiality of their use as alternative raw material on development of ceramic materials. Initially, the wastes were dried and ground, then they were subjected to the following characterization techniques: pH analysis, particle size analysis, X ray fluorescence, X ray diffraction, differential thermal analysis and thermogravimetric analysis and scanning electron microscopy. According to the results, it may be concluded that these wastes could be used as raw material in production of red ceramic and luting materials. (author)

  16. Proficiency tests for evaluation of the {sup 99}Tc{sup m} measurements in the nuclear medicine; Aplicacao de teste de proficiencia para avaliacao da medicao de {sup 99}Tc{sup m} na medicina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Iwahara, Akira; Tauhata, Luiz; Oliveira, Antonio Eduardo de, E-mail: iwahara@ird.gov.b, E-mail: tauhata@ird.gov.b, E-mail: aedu@ird.gov.b [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Nicoli, Ieda Gomes, E-mail: ieda@ird.gov.b [Comissao Nacional de Energia Nuclear (CNEN/DF), Brasilia, DF (Brazil). Escritorio de Brasilia; Alabarse, Frederico Gil; Xavier, Ana Maria, E-mail: falabarse@ird.gov.b, E-mail: axavier@ird.gov.b [Comissao Nacional de Energia Nuclear (ESPOA/CNEN-RS), Porto Alegre, RS (Brazil). Escritorio de Porto Alegre

    2009-07-01

    This work performs the performance evaluation of 55 Brazilian nuclear medicine services in activity measurement of radiopharmaceutical containing {sup 99}Tc{sup m}. Proficiency tests based on the acceptance criteria of the Regulation ISO/IEC Guide 43-1 and on the accuracy of the brazilian Regulation CNEN-NN-3.05 were applied in 63 results of activity measurements in radionuclide calibrators used by those services. The performance services has shown that the criteria of the ISO/IEC 43-1, nevertheless to be more restrictive, presents results very consistent with the accuracy criteria requested by the Brazilian regulation

  17. Application of neutron activation analysis for the determination of essential elements in egg samples; Aplicacao da analise por ativacao com neutrons para a determinacao de elementos essenciais em amostras de ovos

    Energy Technology Data Exchange (ETDEWEB)

    Gomes, Bruna G.; Maihara, Vera A.; Avegliano, Roseane P., E-mail: brunagabrielegomes@gmail.com, E-mail: vmaihara@ipen.br, E-mail: pagliaro@usp.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    The eggs are among the twenty foods consumed by the population of the five major regions of Brazil. Among the types of eggs, there are differences in nutritional value, which can vary according to the food of the bird. This study evaluating the elements Cl, K, Mg, Mn and Na considered essential micronutrients in food, because they are fundamental in several metabolic processes necessary for the maintenance and training of the human body. We analyzed three types of eggs: egg whites, of the quail, and the colonial in cooked and raw form, using the Instrumental Neutron Activation Analysis method (INAA). The egg samples were lyophilized and pulverized before analysis. To validate the methodology, reference materials NIST RM 8415 Whole Egg Powder and NIST SRM 1567 Wheat Flour were analyzed. The samples, reference materials and standards of the elements were irradiated for 20 seconds under a thermal neutron flux of 6,6x10{sup 12} cm -2 s -1 in the nuclear research reactor IEA-R1 of IPEN-CNEN / SP. The results were consistent with the values of the Brazilian Table of Food Composition (TACO)

  18. Thermal activation and characterization of chocolate clay for using as adsorbent in nickel removal; Ativacao termica e caracterizacao da argila chocolate visando sua aplicacao como adsorvente na remocao de niquel

    Energy Technology Data Exchange (ETDEWEB)

    Villar, W.C.T.; Brito, A.L.F.; Laborde, H.M.; Rodrigues, M.G.F., E-mail: meiry@deq.ufcg.edu.br [Universidade Federal de Campina Grande (UFCG), PB (Brazil). Unidade Academica de Engenharia Quimica; Ferreira, H.S. [Universidade Federal de Campina Grande (UFCG), PB (Brazil). Programa de Ciencias e Engenharia de Materiais

    2009-07-01

    Clays present interesting properties as adsorbing material for the removal of heavy metals from effluents. This property is clearly modified by thermal activation. In this work, the characterization of chocolate clay before and after thermal activation (from 300 to 500 deg C) is realized by X-ray diffraction (XRD), differential thermal analysis and thermogravimetric analysis (DTA/TG), infrared spectroscopy (IR), scanning electron microscopy (SEM) and cation exchange capacity (CEC). The main differences between the activated and natural clays are structural modifications of the clay, as shown by XRD and DTA/TG, but also a modification of its cation exchange capacity as shown by the methylene blue method. (author)

  19. Rationalization of water reservoirs operation reduces energy cost with the application of period- and season-dependent tariffs; Racionalizacao da operacao de pocos associada a reservacao reduz custo de energia com aplicacao de tarifa horo-sazonal

    Energy Technology Data Exchange (ETDEWEB)

    Cassiano Filho, Almiro; Orsati, Walter; Bianchi Neto, Cesar [Companhia de Saneamento Basico do Estado de Sao Paulo (SABESP), SP (Brazil)

    1994-12-31

    It is presented the utilization of differentiated tariffs for water supply by the Brazilian utility SABESP (Companhia de Saneamento Basico do Estado de Sao Paulo) as a mean to save electric power 3 refs., 2 tabs.

  20. Strategic environmental assessment of Brazil's ethanol expansion: a methodological proposal and its preliminary application; Avaliacao ambiental estrategica da expansao de etanol no Brasil: uma proposta metodologica e sua aplicacao preliminar

    Energy Technology Data Exchange (ETDEWEB)

    Oberling, Daniel Fontana

    2008-03-15

    The main objective of this dissertation is to adapt the methodology of Strategic Environmental Assessment (SEA) to the case of ethanol fuel production in Brazil. The results are be utilized in decision-making processes as well as in the discussion on future tendencies of risks and opportunities regarding the development of ethanol as the principal renewable liquid fuel. Taking into account the international experiences of countries with a tradition in sectoral planning, SEA is found to be the instrument in public environmental management that can most adequately consider the environmental variable - beginning already at the planning stage of the ethanol industry, a necessity that has strongly unfolded itself following the deregulation of the sector in Brazil. The conflicts that may emerge from large ethanol production surpluses for export are also identified through the application of specifically designed indicators. (author)

  1. Application of gamma irradiation for incorporation of rubber powder in the formulations EPDM and NBR rubber; Aplicacao da radiacao gama para incorporacao do po de borracha em formulacoes de borracha EPDM e nitrilica

    Energy Technology Data Exchange (ETDEWEB)

    Kiyan, Ludmila de Ysasa Pozzo

    2014-07-01

    The natural decomposition of rubber is a very slow process due to its three-dimensional network formed by vulcanized crosslinked structures becoming extremely difficult to reprocess this material. The present work aims to study the application of gamma irradiation as devulcanization process for material reuse/recycling. The interactions of elastomers with ionizing radiation of a gamma source were investigated and the changes in physicochemical properties of the materials were evaluated. Formulations of NBR (acrylonitrile - butadiene) and EPDM (ethylene - propylene - diene terpolymer) from the rubber industry were crosslinked by conventional sulfur-based mixing. Master - batch was processed with rubber powder (industrial waste) and virgin rubber. The raw material (master batch) was irradiated in {sup 60}Co source at doses of 50, 100, 150 kGy and dose rate of 5 kGy h{sup -1} at room temperature. The irradiated material was incorporated in classical sulfur-based formulations. The formulations were characterized by: infrared spectroscopy (FTIR), thermal analysis (TG and DTG), tensile strength, elongation at break, hardness, abrasion resistance, rheometry and swelling. The results showed a predominance of chain scission at a dose of 50 kGy for EPDM rubber. For nitrile predominance of chain scission was observed at a dose of 100 kGy. These results show the possibility of the use of gamma radiation for the reuse/recycling of EPDM and nitrile rubbers. (author)

  2. Application of gamma radiation on disinfestation feed grain based food for domestic animals; Aplicacao da radiacao gama na desinfestacao de racoes a base de graos para alimentacao de animais domesticos

    Energy Technology Data Exchange (ETDEWEB)

    Ramos, Amanda Cristina Oliveira

    2009-07-01

    This study aimed to realize a survey to identify the associated insects to feed the city Sao Paulo / SP and also to assess the effect of gamma radiation on food ration for domestic animals infested by pests. Samples of 20 stores, 'Pet Shop' in different regions in Sao Paulo / SP were subjected to trials of 1 and 45 days for collection of insects with the aid of plastic tray and screens of different sizes. The species Sitophilus zeamais, Cryptolestes ferrugineus, Lasioderma serricorne and Oryzaephilus sp. showed a higher frequency. In assessing the effects of gamma radiation we used samples of maize, sunflower seeds and mix for rodents infested with adults of the species Sitophilus zeamais, Lasioderma serricorne and Plodia interpunctella, after the period of 7 to 10 days the insects were removed and samples subjected to increasing doses of gamma radiation. The species Sitophilus zeamais and Lasioderma serricorne subjected doses from 0,25 to 1,50 kGy and species Plodia interpunctella doses from 0,10 to 2,0 kGy. After 40 days of irradiation was evaluated the number of insects emerged. The results of bioassays with Sitophilus zeamais and with Lasioderma serricorne demonstrated that doses starting at 0,5 kGy was sufficient to cause mortality of eggs and newly emerged larvae. The results with Plodia interpunctella from the 1,5 kGy, hasn't emerged adult insects, concluding that these doses were sufficient to cause mortality of eggs and larvae. (author)

  3. Application of relative permeability modifier additives to reduce water production in different formations; Aplicacao de aditivos modificadores de permeabilidade relativa para reducao da producao de agua em diferentes formacoes

    Energy Technology Data Exchange (ETDEWEB)

    Melo, Ricardo C.B.; Torres, Ricardo S.; Pedrosa Junior, Helio; Dean, Gregory [BJ Services do Brasil Ltda., RJ (Brazil)

    2004-07-01

    Today most oil companies would be better described as water companies. Total worldwide oil production averages some 75 million barrels per day and, while estimates vary, this is associated with the production of 300 - 400 million barrels of water per day. These values of approximately 5 - 6 barrels of water for every barrel of oil are quite conservative. In the United States, where many fields are depleted, the ratio of water-to-oil production is closer to 9 to 1. In some areas around the world, fields remain on production when the ratio is as high as 48 to 1. Numerous strategies, both mechanical and chemical, have been employed over the years in attempts to achieve reduction in water production. Simple shut-off techniques, using cement, mechanical plugs and cross-linked gels have been widely used. Exotic materials such as DPR (disproportionate permeability reducers) and or new generation of relative permeability modifiers (RPM) have been applied in radial treatments with varying degrees of success. Most recently 'Conformance Fracturing' operations have increased substantially in mature fields as the synergistic effect obtained by adding a RPM to a fracturing fluid have produced increased oil production with reduced water cut in one step, consequently eliminating the cost of additional water shut off treatment later on. This paper presents laboratory testing and worldwide case histories of applications of various RPM materials, at different permeability and temperatures. The paper also describes technical design and operational methodology that we believe to have a significant impact in the development strategies of many fields worldwide. (author)

  4. Application of support vector machines in the evaluation of reliability generation and transmission systems; Aplicacao de maquinas de vetores suporte na avaliacao da confiabilidade de sistemas de geracao e transmissao

    Energy Technology Data Exchange (ETDEWEB)

    Dutra, Wellington Damascena; Resende, Leonidas Chaves de [Universidade Federal de Sao Joao Del-Rei (UFSJ), MG (Brazil); Manso, Luiz Antonio da Fonseca; Silva, Armando Martins Leite da [Universidade Federal de Itajuba (UNIFEI), MG (Brazil)

    2010-07-01

    This paper presents a methodology for assessing the reliability indices for composite generation and transmission systems based on Support Vector Machines (SVM). The importance of SVMs is its high generalization ability. The SVMs are used to classify data into two distinct classes. These can be named positive and negative. Thus, the basic idea is to classify the system states into success or failure. For this, a pre-classification of states is achieved by performing the proposed SVM-based neural network, where the sampled states during the beginning of the non-sequential Monte Carlo simulation (MCS) are considered as input data for training and validation sets. By adopting this procedure, a large number of states are classified by a simple evaluation of the network, providing significant reductions in computational costs. The proposed methodology is applied to the IEEE Reliability Test System and to the IEEE Modified Reliability Test System. (author)

  5. Characterization of Paraiba state, Brazil, clays used for clearing of oil of frying for application as bio fuel; Cacterizacao de argilas do estado da Paraiba, Brasil, utilizaadas para clareamento de oleos de fritura usados para aplicacao como biobombustivel

    Energy Technology Data Exchange (ETDEWEB)

    Araujo, E.P.; Oliveira, S.V. de; Medeiros, K.M. de; Araujo, E.M.; Fook, M.V.L. [Universidade Federal de Campina Grande (DEMa/UFCG), PB (Brazil). Dept. de Engenharia de Materiais], e-mail: elainepatriciaaraujo@yahoo.com.br

    2008-07-01

    The search for new sources of renewable energy order to minimize environmental impacts has led the scientists to develop new alternatives, such as the use of recycling of frying oils to produce biodiesel. The reuse of these oils has the advantage of obtaining a biofuel with the cost / benefit competitive. However, the conditions of post-consumer oils require treatment prior to its conversion the chemical (transesterification), removing solid particulate contaminants and adjusting its color using the clay of Paraiba. The use of biodiesel as fuel presents a reduction of levels of environmental pollution. This study aimed to characterize clay of Paraiba to be used in the clearing of frying oil. It was observed through the results of the Xray fluorescence (XRF) and infrared spectroscopy by Fourier Transform (FTIR), which the clays tested, have been effective in clearing of frying oils, making them similar to oil 'virgin'. (author)

  6. Effect of the addition of collagen in the preparation of hydroxyapatite, aiming the application of pulp capping; Efeito da adicao de colageno na preparacao de hidroxiapatita visando a aplicacao como capeador pulpar

    Energy Technology Data Exchange (ETDEWEB)

    Ribeiro, Geysy L.; Mendes, Luis C., E-mail: geysylopes@ima.ufrj.br [Instituto de Macromoleculas Professora Eloisa Mano (IMA) - Universidade Federal do Rio de Janeiro, UFRJ. Centro de Tecnologia, RJ (Brazil)

    2011-07-01

    This work studied the action of collagen (COLL) in the hydroxyapatite (HA) synthesis, produced through sol-gel process, in order to mimetize the chemical composition of dental tissue. The resulting material was characterized by energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), wide-angle X-ray diffraction (WAXD) and scanning electron microscopy (SEM). The Ca/P ratio was determined through EDX - 1,89 e 2,38, with and without collagen, respectively. The FT-IR analysis showed no significant interaction between the constituents of the composite. The R-ray diffractograms indicated an increase of the resolution and intensity of the HA peak. The photomicrographies showed that the preparation method exhibited significantly influence onto the hydroxyapatite morphology, as well as resulted in a homogeneously dispersed composite. (author)

  7. Development of a head phantom to be used for quality control in stereotactic radiosurgery; Desenvolvimento de um simulador de cabeca para a aplicacao no controle da qualidade de radiocirurgia estereotaxica

    Energy Technology Data Exchange (ETDEWEB)

    Barbosa, Nilseia Aparecida

    2010-05-15

    It was designed and developed a geometric acrylic head phantom (GHP) for Quality Assurance (QA) in Stereotactic Radiosurgery (SRS). Inside the phantom there are inserts that are able to accommodate acrylic targets representing the tumor tissue and organ at risk in the region cranial brain, the brain stem. The tumor tissue is represented by two semi-spheres of acrylic with a diameter of 13.0 mm and cavities in the central region for accommodation of a TLD-100 detector and a small radiochromic EBT Gafchromic filmstrip. The brain stem is represented by the two parts of acrylic cylinder with a diameter 18.0 mm, 38.0 mm length and cavities along the central region to accommodate the 5 detectors TLD-100 and yet another of EBT film. The distance tumor - brain stem is 2.0 mm. The experimental setup was filled with water, attached to the stereotactic frame to determine the coordinates of the target and underwent computed tomography (CT). Cf images were transferred to the SRS planning system BrainLab (BrainScan). The contours of the lesion and organ at risk were delineated and, through the technique of multiple circular arcs, the planning was conduced with five arches, one isocenter and a collimator of 17.5 mm from the combination between the table and gantry . The dose delivered to the isocenter of the lesion was 3.0 Gy and the total coverage of tumor volume corresponds to the 75% isodose. This experimental arrangement is subjected to radiosurgery treatment, after which the dosimeters are evaluated and their responses compared with the values of planned doses. The linear accelerator used was a Varian CLlNAC 2300 CID, photon beam of 6 MV, installed at the National Cancer Institute (INCA). For verification of dose distributions in 3D, the films were irradiated in three planes: sagittal, caronal and axial. The .films were scanned and digitized on a scanner Microtek ScanMaker 9800XL model. The dose distributions in irradiated films were compared with the distributions of doses provided by the planning system through the software PTW VeriSoft gamma index method. The results were obtained with TLD agree with planned dose values within the limits of acceptance. For EBT Gafchromics films, in ali treatment plans, there was agreement between the doses values and isodoses, measured planned, within the tolerance limits for SRS (+- 5% of the administered dose in the isocenter of the lesion and {+-} 1,0 mm spatial deviation), showing that the method used is adequate to ensure the quality of the radiosurgery treatment. (author)

  8. Application of genetic algorithms to the maintenance scheduling optimization in a nuclear system basing on reliability; Aplicacao de algoritmos geneticos na otimizacao da politica de manutencoes preventivas de um sistema nuclear centrada em confiabilidade

    Energy Technology Data Exchange (ETDEWEB)

    Lapa, Celso M. Franklin; Pereira, Claudio M.N.A.; Mol, Antonio C. de Abreu [Instituto de Engenharia Nuclear (IEN), Rio de Janeiro, RJ (Brazil)

    1999-07-01

    This paper presents a solution based on genetic algorithm and probabilistic safety analysis that can be applied in the optimization of the preventive maintenance politic of nuclear power plant safety systems. The goal of this approach is to improve the average availability of the system through the optimization of the preventive maintenance scheduling politic. The auxiliary feed water system of a two loops pressurized water reactor is used as a sample case, in order to demonstrate the effectiveness of the proposed method. The results, when compared to those obtained by some standard maintenance politics, reveal quantitative gains and operational safety levels. (author)

  9. Application of field-bus to interface field instrumentation in hazardous areas of TRANSPETRO pipelines and terminals, Sao Paulo region; Aplicacao de barramento de campo (fieldbus) em areas classificadas nos dutos e terminais da TRANSPETRO, regiao de Sao Paulo

    Energy Technology Data Exchange (ETDEWEB)

    Corcioli, Mario Sergio [PETROBRAS Transporte S.A. (TRANSPETRO), Rio de Janeiro, RJ (Brazil)

    2005-07-01

    The following presentation focuses on the experiences that we have been adopting with success during the past seven (7) years at the TRANSPETRO Pipelines and Terminals, in the State of Sao Paulo region, to integrate the field instruments (switches, actuators, solenoid valves, motor starter and switchgear panels, and so on) installed in the hazardous areas, to Programmable Logic Controllers (PLC) connected to Remote Input and Output Modules (I/O) in the hazardous area, designated to interface the field signals and condition them to communicate via a bus in the field (field bus), making use of a standard open type industrial communication bus - PROFIBUS DP V1, under which the independent manufacturers follow the industrial Standards EN50170 and EN50254, pointing out the advantages of the application of this instrumentation philosophy, that among other philosophies, allows the use of engineering tools for the asset management and to assist the maintenance and operation of industrial plants. (author)

  10. Application of gamma irradiation for incorporation of rubber powder in the formulations of EPDM and natural rubber; Aplicacao da radiacao gama para incorporacao do po de borracha em formulacoes de borracha natural e EPDM

    Energy Technology Data Exchange (ETDEWEB)

    Kiyan, Ludmila Y.P.; Parra, Duclerc Fernandes; Lugao, Ademar Benevolo, E-mail: ludmilapozzo@gmail.com [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP/CQMA), Sao Paulo, SP (Brazil). Centro de Quimica e Meio Ambiente

    2013-07-01

    The objective of this work was to study the behavior of the recycling of rubber burrs in form of powder, of the rubber industry from EPDM rubber powder and natural rubber with SBR. The rubber powder was irradiated and reused in rubber artifacts formulations for classical vulcanization. The processed material was irradiated using a {sup 60}Co source in doses of 50, 100, 150 and 200 kGy and a dose rate of 5 kGy s-1 at room temperature. The radiation created devulcanization active sites for subsequent integration of the material (rubber powder) in formulations of commercial use. The processes were compared and their products characterized by analytical methods of the physical properties such as strength and elongation. Satisfactory results were found, noting a major spin-off of EPDM chain demonstrated by increased elongation.

  11. The application of artificial intelligence on the optimal solution of the operating conditions of continuous casting; Aplicacao da inteligencia artificial na solucao otima das condicoes operacionais do lingotamento continuo

    Energy Technology Data Exchange (ETDEWEB)

    Spim Junior, J.A.; Ierardi, M.C.F.; Garcia, A. [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia Mecanica

    1995-12-31

    This work presents the development of a software that incorporates artificial intelligence techniques, directly applied to the metallurgical industry, particularly to those using the continuous casting process for ingot production. The essential parts of the continuous casting equipment which must be subjected to monitoring are presented, and a methodology of physical settlements in each cooling region as well. The modification performed by the intelligent program taking into account the critical rules conducting to an efficient solidification, are compared with real time simulation of ingot surface temperatures. The efficiency of the intelligent system is assured by final product quality parameters. This approach is applied to the real dimension of a slab continuous caster under real operation conditions, demonstrating that very good results can be attained by using an heuristic search 11 refs., 4 figs., 4 tabs.

  12. Chemometrics application in fuel's MTR type chemical characterization by X-ray fluorescence; Aplicacao da quimiometria para caracterizacao quimica de combustiveis tipo MTR por fluorescencia de raios-X

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Clayton Pereira da

    2012-07-01

    In Brazil and worldwide the nuclear power has occupied a prominent position with many applications in industry, power generation, environment and medicine, improving the quality of tests and treatments, therefore people's lives. Uranium is the main element used in nuclear facilities and it s employed as base material to generation of electricity in the manufacture of radiopharmaceuticals. In the '50s, during the Cold War, the then newly created International Atomic Energy Agency proposed to oversee nuclear facilities and encourage the manufacture of nuclear fuels with low-enriched uranium (LEU) fuel came then type Material Test Reactor (MTR), manufactured initially in U{sub 3}O{sub 8} and U{sub 3}Si{sub 2} later, both dispersed in aluminum. The use of this technology requires a constant improvement of all processes involving the manufacture of MTR subject to several international protocols, which seek to ensure the reliability of the fuel from the standpoint of practical and environmental. In this context, the control of impurities, from the point of view of neutron economy, directly affects the quality of any nuclear fuel, so strict control is necessary. The literature has reported procedures which, beyond generating residues, are lengthy and costly, they need calibration curve and consequently reference materials. The aim of this work is to establish and validate a methodology for nondestructive quantitative chemical analysis, low cost and analysis time, as well as minimize the generation of waste, for multielement determination of major constituents (Utotal and Si) and impurities (B, Mg, Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, Cd and others) present in U3O8 and U{sub 3}Si{sub 2}, meeting the needs of nuclear reactors in the nuclear fuel qualification type MTR. For that purposes, will be applied the X-ray fluorescence technique which allows fast chemical and nondestructive analysis, aside from sample preparation procedures that do not require previous chemical treatments (dissolving, digesting, and others). To corrections like effects of spectral and matrix were applied and evaluated the fundamental parameter method, univariate calibration curve and multivariate calibration. The results were compared by means of statistical tests in accordance with ISO 17025 in MRCs (123 (1-7) and 124 (1-7)) MCRs of U{sub 3}O{sub 8} from New Brunswick Laboratory (NBL) and 16 U{sub 3}Si{sub 2} samples provided by CC of IPEN/CNEN-SP. The chemometrics is a promising method to determination of minor and major constituents on the U3Si2 and U3O8 basis nuclear fuel, because the precision and accuracy are statistically equal volumetric analysis, gravimetric and ICPOES methods. (author)

  13. Implementation of the robustness analysis methodology for decenal planning in the expansion of electric sector; Aplicacao da metodologia de analise de robustez ao planejamento decenal de expansao do setor eletrico

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Renata de Azevedo Moreira da

    2008-05-15

    The objective of this dissertation is to develop an application from one of the techniques of 'soft' operational research, the Robustness Analysis, to the problem of decision making under uncertainty, as part of the planning of the electricity expansion planning process in Brazil. Initially are shown desirable characteristics of a methodology that will complement the traditional methods used in determining the expansion of the sector. Departing from the Decenal Plan for Power Expansion (2007/2016), an analysis of the different trends that can occur during the planning process is presented, so as to facilitate the visualization of the consequences of uncertainties that may change the schedule of the planned expansion and also help the interaction between actors working in the expansion planning of electricity generation. (author)

  14. Evaluation of the potential application of 2-acetylpyridine N4- phenyl thiosemicarbazones derivatives for cancer therapy and diagnosis; Avaliacao da potencial aplicacao de derivados de 2-acetilpiridina N-4 fenil tiossemicarbazonas em terapia e diagnostico oncologico

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Marcella Araugio

    2013-08-01

    Despite the wide range of antineoplastic agents available, resistance of some types of cancer and toxicity to normal cells have been identified as the main causes of treatment failure and death. The lack of early and precise diagnosis is also responsible for reducing survival of cancer patients. In this context, the development of substances with low toxicity and therapeutic potential and/or diagnosis purpose, is the major tool in an attempt to increase the survival of patients and assure the safety and efficacy of treatment. Thiosemicarbazones (TSC) are a class of synthetic compounds that have several biological activities, including antitumor. Although several studies have shown the great potential of TSC as therapeutic and / or diagnostic agents, different chemical modifications performed on this class of molecules indicate new possibilities for applications and still require further studies. The objective of this study was to evaluate the potential applicability of 2-acetylpyridine N-4-phenyl thiosemicarbazones derivatives for cancer therapy and diagnosis. The results showed that all 13 TSC tested were cytotoxic to breast and glioblastoma tumor cell lines, presenting higher in vitro antitumor activity than etoposide, an antineoplastic and inhibitor of topoisomerase II frequently used for cancer therapy. The TSC that have halogen or nitro on ortho position showed higher antitumor activity in vitro than their isomers with halogen or nitro on meta or para position of the phenyl group. H2Ac4oFPh and H2Ac4oClPh compounds showed the highest antitumor activity among all tested compounds, with IC{sub 50} in nanomolar order. These TSC induced cell death by apoptosis and oxidative stress was responsible, at least in part, for this type of cell death. The 5 mg.kg{sup -1} H2Ac4oFPh dose, administered s.c., for 4 consecutive days, did not induce important toxicity; however, the same treatment protocol was not effective for tumor growth reduction in an animal model of brain tumor. Radioactive probes of H2Ac4oFPh were synthesized using {sup 111}In or {sup 67}Ga as radiotracers, with satisfactory specific activity and radiochemical purity. H2Ac4oFPh-{sup 111}In was more useful than H2Ac4oFPh-{sup 67}Ga, with higher specific activity, better chemical purity, better in vitro stability, higher distribution volume, faster blood clearance and, therefore, was considered the most promising for application in molecular imaging studies. H2Ac4oFPh-{sup 111}In also showed high lipophilicity and was internalized by glioblastoma cells in vitro. H2Ac4oFPh-{sup 111}In showed significative tumor uptake in vivo, however, the high abdominal uptake and high background did not allow a good visualization of tumor in imaging studies. Unlike intravenous administration, intratumoral administration allowed greater diffusion and retention of H2Ac4oFPh-{sup 111}In in the tumor site and significantly reduced the activity accumulated in the organs. These results encourage new experiments to be performed in order to promote the complexation of H2Ac4oFPh with particle emitters, such as yttrium-90, to evaluate its application in local radioisotopic therapy for glioblastoma multiforme. (author)

  15. Treatment of post-consumption oils from Paraiba state - Brazil - clays for application as bio fuel; Tratamento de oleos pos-consumo a partir de argilas da Paraiba para aplicacao como biocombustivel

    Energy Technology Data Exchange (ETDEWEB)

    Araujo, E.P.; Oliveira, S.V. de; Medeiros, K.M. de; Silva, D.F. da; Araujo, E.M.; Fook, M.V.L. [Universidade Federal de Campina Grande (DEMa/UFCG), PB (Brazil). Dept. de Engenharia de Materiais], e-mail: elainepatriciaaraujo@yahoo.com.br

    2008-07-01

    The utilization of fuels of agricultural origin in the cycle diesel engines is a good alternative to reduce dependence on importation petroleum, since these fuels are a renewable source of energy. The utilization of biodiesel as biofuel is a contribution to the environment, reducing the qualitative and quantitative form levels of environmental pollution. The recycling of post-consumption oil helps reduce the uncontrolled disposal and environmentally dangerous, than to obtain fuel with a cost / benefit and offering a competitive alternative commercial advantage. However, these oils should go through a process of decontamination and clearing up the stage of chemical conversion which is used clay to lighten the oil. This work had as its objective to make a literature revision evaluating the potential of the clearing clay modified in Paraiba, used in post-consumption oils for application as biofuel. (author)

  16. Study of the stability of sugar Ester and its application potential with additives in the drilling fluids; Estudo da estabilidade do ester de acucar e sua potencial aplicacao como aditivo em fluido de perfuracao

    Energy Technology Data Exchange (ETDEWEB)

    Medeiros, Suzan I.G.; Costa, Marta; Macedo, Sinara P.N. [Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN (Brazil)

    2008-07-01

    This work describe the enzymatic synthesis of the glucose ester starting from fatty acid, using protease Bacillus subtilis as biologic catalyst. The efficiency of ester has determined through the surface tension analyses in different pH (2-12), temperature (25-100 deg C) and salinity (50-115 g/L of NaCl). For a better understanding as for the applicability of the ester of sugar in drilling fluids, it was done necessary to know the values of interfacial tension of the oil/water; in that analysis, the mineral oil was investigated as oily phase and, as aqueous phase, biosurfactant solution. The results of interfacial tension of the water/oil and biosurfactant /oil they allowed to quantify us the influence of the benefactor's front to an organic phase, because the same made a significant reduction the interfacial tension of 26,0725 mN/m (water/oil) or 1,7527 mN/m (biosurfactant aqueous solution/oil). D-glucose ester was shown stable in different concentrations of NaCl, pH and temperature, and efficient in the reduction of the superficial tension of the water (of 72 mN/m for 28 mN/m). Preliminary test reveal that the ricinoleoil of D-glucose presents functionality as lubricant for drilling fluids to the base water. In the studied formulations, the obtained composition reduces the coefficient of lubricity of 0,20 for 0,04 and it stabilizes the fluid, reducing the volume of the filtrate of 5,0 mL for 3,4 mL. (author)

  17. Shelf-life increase of fresh mushrooms Pleurotus sajor-caju using gamma radiation;Aumento da vida util de cogumelos Pleurotus sajor-caju in natura com aplicacao de radiacao gama

    Energy Technology Data Exchange (ETDEWEB)

    Moda, Evelise Moncaio

    2008-07-01

    The production and consumption of edible mushrooms has been increasing in the last years due to its nutritional composition and sensory quality. The irradiation of mushrooms has been used with the purpose of maintaining the fresh product characteristics during shelf-life. The present study evaluated the effect of different radiation doses on the conservation of mushrooms Pleurotus sajor-caju, through by chemical, physical, microbiological and sensorial parameters. The packaging consisted on polystyrene trays with 250 g of sample, wrapped in polyvinyl chloride (PVC). The mushrooms were irradiated with doses of 125, 250, 500 and 750 Gy in a Gamma cell 220 type irradiator, and stored at 4 +- 1 deg C and 90% UR for 10 days. The proximate composition (moisture, crude fibre, total protein, total fat and ash), total soluble solids, pH, texture, color (L, a, b, Chroma and ho), enzymatic activity (polyphenoloxidase and peroxidase), microbiological (total coliform, Escherichia coli and total psychotropic bacteria) and sensory evaluation (color, taste and appearance) were determined in the 1st, 5th and 10th storage days. For the respiratory rate analysis, 30 g of sample were placed in jars and stored at 4 +- 1 deg C and 90% UR for 8 days. CO{sub 2} was analyzed every day using a gaseous chromatograph. The results were submitted to variance analysis and average test using the SAS statistical package. The total protein and total fat values did not differ significantly between treatments or storage periods, while the moisture, crude fibre and ash values differ between treatments and periods. The dose of 750 Gy darkness the mushroom in the last evaluation, and texture was better in control during the storage period. The color (L, a), texture and proximate composition values did not differ significantly between treatments or storage periods. A significant increase was observed for soluble solids, b{sup *} and enzymatic activity values in all treatments at the end of the storage period. Values of polyphenoloxidase and peroxidase activities increased in the last day of evaluation in samples irradiated with 250 Gy. This fact may be a result of the water radiolysis process, since mushrooms have high water content. The dose of 125 Gy increased the respiratory rate of the samples until the 5th storage day in comparison to the other treatments, causing reduction in the product shelf-life. The samples irradiated with 250, 500 and 750 Gy had a reduction on the respiratory rate if compared with the control, so contributing to the maintenance of the post harvest quality during the storage. The samples which received 750 Gy obtained the best results in the microbiological analyses, with reduction of total coliform and psychotropic bacteria during the storage period. Sensory analyses showed that the control had higher scores for color, aroma and appearance attributes; they were above the acceptability limit until the last storage day. In general, the irradiated samples were accepted for the evaluated attributes until the 5th storage day; thus, establishing the shelf-life for irradiated mushrooms (author)

  18. Application of total quality tools in the operational process modernization and optimization of large hydroelectric power plants; Aplicacao de ferramentas da qualidade total na modernizacao e otimizacao de processos operacionais de grandes usinas hidreletricas

    Energy Technology Data Exchange (ETDEWEB)

    Potenza, Luiz Frederico; Kassem, Faisal Ali; Medlo, Gerson Ricardo; Santos, Valdemir Chalito dos [Companhia Paranaense de Energia (COPEL), Capitao Leonidas Marques, PR (Brazil). Superintendencia de Gerencia da Manutencao. Area de Operacao e Manutencao Salto Caxias]. E-mail: potenza@mail.copel.br

    1998-07-01

    This work highlights a practical example of Total Quality tools application, and as the institutional changes advances, the necessity of being better and more competitive becomes evident. By using Total Quality Control tools in the modernization and optimization of operational processes for large hydroelectric power plants of the COPEL-Brazil this work contributes for the continuous increasing of the customers satisfaction and the profitability of the company.

  19. Partner's interest conflict analysis in distribution of natural gas: a game theory approach; Analise de conflitos de interesse na distribuicao de gas natural em areas urbanas: uma aplicacao da teoria dos jogos

    Energy Technology Data Exchange (ETDEWEB)

    Prata, Bruno de Athayde; Arruda, Joao Bosco Furtado [Universidade Federal do Ceara (UFC), Fortaleza, CE (Brazil). Nucleo de Pesquisa em Logistica, Transporte e Desenvolvimento

    2004-07-01

    The use of Natural Gas is nowadays increasing in Brazilian scene and this fact shows the necessity of effective planning tasks in that sector. In the case of Natural Gas Vehicular (NGV) distribution one can face problems of actor's (distributor, retailers, customers and non-users) point of view conflicts and fuel stations expand in most Brazilian urban areas in an uncontrolled way, despising counties regulation on land use. This paper reports a study using a model based in Game Theory concepts to determine some key-variables as the number of fuel stations which must deliver NGV in a given study area. Although some information could not be available the results of simulation shows the usefulness of using such an approach to give solutions to distribution questions in NGV sector. The model was applied to the case of a district in Fortaleza city which is the study area of a project entitled Projeto GASLOG presently on process under the sponsoring of Brazilian Government, PETROBRAS and Brazilian GasEnergy Research Network. (author)

  20. Deployment case study of a global applied 3D modeling process of pipe supports; Estudo de caso da aplicacao de uma ferramenta para automatizacao e controle do processo de modelagem de suportes para tubulacoes em maquetes 3D

    Energy Technology Data Exchange (ETDEWEB)

    Balbi, Diego Junca Gonzaga; Oliveira, Renato Fonseca; Pinto, Rogerio Dias [Promon Engenharia, Sao Paulo, SP (Brazil)

    2012-07-01

    An activity in engineering projects has been changed over the past two decades with regarding to working practices. Difficulties arising from the increasing complexity of projects, especially in industrial sectors, have taken this activity a constant search for new methods and tools which enable increased speed in performing tasks of daily life of the project. Currently, the development of these tools has been based on a friendlier interface to the end user, minimizing the need for extensive and repetitive training. Moreover, the industry responsible for this development of these kind of tools is still in the search for knowledge in order to explore the plain capabilities within wide projects on solutions offered. This article deals with one of these innovations on the spotlight, besides of being not a technology issue. It's based on the same basic platform available since the creation of models used together with databases. However, this new vision of work inserts one more specialty in the virtual designing of structures to support industrial pipes, as well as other design disciplines, nor taken advantage of these capabilities with regard to the generation of information, its control and management. (author)

  1. Repair in Mourao power plant spillway: application of recycled material concrete admixtures - stage one; Reparos no vertedouro da UHE Mourao: aplicacao de concretos com adicao de material reciclado - 1a. parte

    Energy Technology Data Exchange (ETDEWEB)

    Galvao, Jose Carlos Alves; Portella, Kleber Franke; Joukoski, Alex; Mendes, Roberto [Instituto de Tecnologia para o Desenvolvimento (LACTEC), Curitiba, PR (Brazil)], Emails: jose.galvao@lactec.org.br, portella@lactec.org.br, alex@lactec.org.br; roberto.mendes@lactec.org.br; Ferreira, Elizeu Santos [Companhia Paranaense de Energia (COPEL), Curitiba, PR (Brazil)], Email: elizeu.sf@copel.com

    2009-10-15

    The Mourao hydroelectric power plant located in the city of Campo Mourao, in the state of Parana, southern region of Brazil, was inaugurated in 1964, with 7500 kW of installed power. Defects in the spillway surface of the dam had been identified throughout the time. With the purpose of recovering the concrete hydraulic surface, repair materials were proposed in this paper, considering technology development and environment conservation. Concrete mixtures containing recycled materials - low-density polyethylene (LDPE), polyethylene terephthalate (PET) and waste tires - had its performance tested in laboratory. Mechanical properties, such as compressive strength, tensile strength and adherence were evaluated using cylindrical concrete specimens. Results were appraised and the best compositions were selected to be tested on spillway surface of Mourao dam. (author)

  2. Chemometrics application in fuel's MTR type chemical characterization by X-ray fluorescence; Aplicacao da quimiometria para caracterizacao quimica de combustiveis tipo MTR por fluorescencia de raios-X

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Clayton Pereira da

    2012-07-01

    In Brazil and worldwide the nuclear power has occupied a prominent position with many applications in industry, power generation, environment and medicine, improving the quality of tests and treatments, therefore people's lives. Uranium is the main element used in nuclear facilities and it s employed as base material to generation of electricity in the manufacture of radiopharmaceuticals. In the '50s, during the Cold War, the then newly created International Atomic Energy Agency proposed to oversee nuclear facilities and encourage the manufacture of nuclear fuels with low-enriched uranium (LEU) fuel came then type Material Test Reactor (MTR), manufactured initially in U{sub 3}O{sub 8} and U{sub 3}Si{sub 2} later, both dispersed in aluminum. The use of this technology requires a constant improvement of all processes involving the manufacture of MTR subject to several international protocols, which seek to ensure the reliability of the fuel from the standpoint of practical and environmental. In this context, the control of impurities, from the point of view of neutron economy, directly affects the quality of any nuclear fuel, so strict control is necessary. The literature has reported procedures which, beyond generating residues, are lengthy and costly, they need calibration curve and consequently reference materials. The aim of this work is to establish and validate a methodology for nondestructive quantitative chemical analysis, low cost and analysis time, as well as minimize the generation of waste, for multielement determination of major constituents (Utotal and Si) and impurities (B, Mg, Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, Cd and others) present in U3O8 and U{sub 3}Si{sub 2}, meeting the needs of nuclear reactors in the nuclear fuel qualification type MTR. For that purposes, will be applied the X-ray fluorescence technique which allows fast chemical and nondestructive analysis, aside from sample preparation procedures that do not require previous chemical treatments (dissolving, digesting, and others). To corrections like effects of spectral and matrix were applied and evaluated the fundamental parameter method, univariate calibration curve and multivariate calibration. The results were compared by means of statistical tests in accordance with ISO 17025 in MRCs (123 (1-7) and 124 (1-7)) MCRs of U{sub 3}O{sub 8} from New Brunswick Laboratory (NBL) and 16 U{sub 3}Si{sub 2} samples provided by CC of IPEN/CNEN-SP. The chemometrics is a promising method to determination of minor and major constituents on the U3Si2 and U3O8 basis nuclear fuel, because the precision and accuracy are statistically equal volumetric analysis, gravimetric and ICPOES methods. (author)

  3. Application of perturbation methods for sensitivity analysis for nuclear power plant steam generators; Aplicacao da teoria de perturbacao a analise de sensibilidade em geradores de vapor de usinas nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Gurjao, Emir Candeia

    1996-02-01

    The differential and GPT (Generalized Perturbation Theory) formalisms of the Perturbation Theory were applied in this work to a simplified U-tubes steam generator model to perform sensitivity analysis. The adjoint and importance equations, with the corresponding expressions for the sensitivity coefficients, were derived for this steam generator model. The system was numerically was numerically solved in a Fortran program, called GEVADJ, in order to calculate the sensitivity coefficients. A transient loss of forced primary coolant in the nuclear power plant Angra-1 was used as example case. The average and final values of functionals: secondary pressure and enthalpy were studied in relation to changes in the secondary feedwater flow, enthalpy and total volume in secondary circuit. Absolute variations in the above functionals were calculated using the perturbative methods, considering the variations in the feedwater flow and total secondary volume. Comparison with the same variations obtained via direct model showed in general good agreement, demonstrating the potentiality of perturbative methods for sensitivity analysis of nuclear systems. (author) 22 refs., 7 figs., 8 tabs.

  4. Evaluation in vitro of pulpal chamber temperature of deciduous teeth during Er:YAG laser application; Avaliacao in vitro da temperatura na camara pulpar de dentes deciduos durante aplicacao do laser de Er:YAG

    Energy Technology Data Exchange (ETDEWEB)

    Sznajder, Alexandre Joseph

    2001-07-01

    The Er:YAG laser technology has been thoroughly studied, since its invention, and has been increasingly recommended in Dentistry. However, its use in deciduous teeth has not been deserving the equivalent attention to its counterpart in permanent teeth, despite of the deciduous teething occur in a phase of life in which it has a far more importance than its substitutes. For that reason, this study aims to identify the suitable parameters to the clinic procedures in deciduous teeth, using the already established protocols in permanent teeth. The study was lead in a way to resemble the most the conditions of the clinical use of the laser. Five groups were analyzed using different energy densities and repetition rates. Each group was composed of 10 first superior right deciduous molars randomly selected. The energy densities and repetition rates used for each group were: 60 mJ 15 Hz, 250 mJ 2 Hz, 250 mJ 15 Hz, 400 mJ 6 Hz and 500 mJ 2 Hz. The results obtained allowed us to conclude that the use of the Er:YAG laser in Odontopediatrics is effective, safe and secure and the main reason for its recommendation is the low transfer of heat to the adjacent tissues of the applied surfaces. (author)

  5. Boundary integral method application in the transportation modeling of radioactive tracers in porous ways; Aplicacao do metodo da integral de contorno na modelagem do transporte de tracadores radioativos em meios porosos

    Energy Technology Data Exchange (ETDEWEB)

    Ferroni, Jose Geraldo

    1996-03-01

    This work describes a method for estimating the effluent concentrations of radioactive tracers in production wells, considering well to well injection tests and piston-like displacements of fluids in the reservoir. The model for tracer transportation takes into account effects of convection and hydrodynamic dispersion. (author)

  6. Application of perturbation theory to sensitivity calculations of PWR type reactor cores using the two-channel model; Aplicacao da teoria de perturbacao para calculos de sensibilidade em nucleos de reatores PWR, usando um modelo de dois canais

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, A.C.J.G. de

    1988-12-01

    Sensitivity calculations are very important in design and safety of nuclear reactor cores. Large codes with a great number of physical considerations have been used to perform sensitivity studies. However, these codes need long computation time involving high costs. The perturbation theory has constituted an efficient and economical method to perform sensitivity analysis. The present work is an application of the perturbation theory (matricial formalism) to a simplified model of DNB (Departure from Nucleate Boiling) analysis to perform sensitivity calculations in PWR cores. Expressions to calculate the sensitivity coefficients of enthalpy and coolant velocity with respect to coolant density and hot channel area were developed from the proposed model. The CASNUR.FOR code to evaluate these sensitivity coefficients was written in Fortran. The comparison between results obtained from the matricial formalism of perturbation theory with those obtained directly from the proposed model makes evident the efficiency and potentiality of this perturbation method for nuclear reactor cores sensitivity calculations (author). 23 refs, 4 figs, 7 tabs.

  7. Application of {sup 222} Rn as a tracer of groundwater discharge at the coastal zone of Ubatuba, Sao Paulo State, Brazil; Aplicacao de {sup 222} Rn como tracador da descarga de aguas subterraneas na regiao costeira de Ubatuba, Sao Paulo

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Joselene de; Farias, Luciana A.; Mazzilli, Barbara P. [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil). Dept. de Radiometria Ambiental]. E-mail: jolivei@net.ipen.br; Burnett, William C. [Florida State Univ., Tallahassee, FL (United States); Saraiva, Elisabete de S.B. e; Furtado, Valdenir V. [Sao Paulo Univ., SP (Brazil). Inst. Oceanografico. Dept. de Oceanografia Quimica e Geologica

    2002-07-01

    Submarine groundwater discharge (SGD) and recycled seawater can provide chemical constituents to coastal zone, representing an important material flux pathway from land to sea in some areas. Geochemical tracers, like {sup 222} Rn and {sup 226} Ra, are advantageous for regional-scale assessment of SGD, because their signals represent values integrated through the water column that removes small-scale variations. These radionuclides are usually enriched in groundwater compared to seawater, can be measured at very low concentrations and are conservative. This work reports preliminary results of a study carried out in a series of small embayements of Ubatuba, Sao Paulo State-Brazil, covering latitudes between 23 deg 26{sup '}S and 23 deg 46{sup '}S and longitudes between 45 deg02{sup '}W and 45 deg 11{sup '}W. The main aims of this research were to set up an analytical method to assess {sup 222} Rn and {sup 226} Ra activities in seawater samples and to apply the excess {sup 222} Rn inventories obtained to estimate the submarine groundwater discharge. Measurements made during 2001/2002 included {sup 222} Rn and {sup 226} Ra in seawater, {sup 222} Rn in sediment, seawater and sediment physical properties. (author)

  8. Methodology to evaluate the energy associated to the industrial solid wastes: application in a metropolitan region of Campinas, Sao Paulo state, Brazil; Metodologia para avaliacao da energia associada ao residuo solido industrial: aplicacao a regiao metropolitada de Campinas

    Energy Technology Data Exchange (ETDEWEB)

    Batista, Tereza Rosana Orrico [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Curso de Pos-graduacao em Planejamento de Sistemas Energeticos; Teixeira, Egle Novaes [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Fac. de Engenharia Civil, Arquitetura e Urbanismo; Silva, Ennio Peres da [Universidade Estadual de Campinas (UNICAMP), SP (Brazil). Nucleo Interdisciplinar de Planejamento Energetico. Lab. de Hidrogenio

    2004-07-01

    The aim of this work is to the application of a methodology to evaluate the energy associated to the industrial solid wastes in the metropolitan region of Campinas. The methodological route proposed is: the characterization of the research area and the production/management of the industrial solid wastes; the energetic classification and the qualitative/quantitative research of the energy associated to the industrial solid wastes; and, the valuation of the applicability of the energetic utilization mechanisms proposed to the region. This methodology when applied at the Campinas metropolitan region proved to be valid and it resulted in a synthetically presentation of the social and environmental reality of the industrial sector and the destination of the wastes, as well as it indicated the potentialities related to the energetic utilization of the industrial solid waste in the region. With the obtained results it was shown the importance of the the production and the destination of the industrial solid wastes in the Campinas metropolitan region , and the meaning, in terms of electric potency, of the values of the energy associated to the wastes with a known factor of energetic conversion shown in the researched sample. (author)

  9. Implementation of the robustness analysis methodology for decenal planning in the expansion of electric sector; Aplicacao da metodologia de analise de robustez ao planejamento decenal de expansao do setor eletrico

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Renata de Azevedo Moreira da

    2008-05-15

    The objective of this dissertation is to develop an application from one of the techniques of 'soft' operational research, the Robustness Analysis, to the problem of decision making under uncertainty, as part of the planning of the electricity expansion planning process in Brazil. Initially are shown desirable characteristics of a methodology that will complement the traditional methods used in determining the expansion of the sector. Departing from the Decenal Plan for Power Expansion (2007/2016), an analysis of the different trends that can occur during the planning process is presented, so as to facilitate the visualization of the consequences of uncertainties that may change the schedule of the planned expansion and also help the interaction between actors working in the expansion planning of electricity generation. (author)

  10. Application of the physiological and morphological parameters of the brazilian population sample to the mathematical model of the human respiratory tract; Aplicacao dos parametros fisiologicos e morfologicos de uma amostra da populacao brasileira no modelo matematico do trato respiratorio humano

    Energy Technology Data Exchange (ETDEWEB)

    Reis, Arlene Alves dos

    2005-07-01

    The Human Respiratory Tract Model proposed by the ICRP Publication 66 accounts for the morphology and physiology of the respiratory tract. The characteristics of air drawn into the lungs and exhaled are greatly influenced by the morphology of the respiratory tract, which causes numerous changes in pressure, flow rate, direction and humidity as air moves into and out of the lungs. Concerning the respiratory physiological parameters the breathing characteristics influence the volume, the inhalation rate of air and the portion that enters through the nose and the mouth. These characteristics are important to determine the fractional deposition. The model uses morphological and physiological parameters from the Caucasian man to establish deposition fractions in the respiratory tract regions. It is known that the morphology and physiology are influenced by environmental, occupational and economic conditions. The ICRP recommends, for a reliable evaluation of the regional deposition, the use of parameters from a local population when information is available. The main purpose of this study is to verify the influence in using the morphology and physiology parameters representative of a sample of the Brazilian population on the deposition model of the ICRP Publication 66. The morphological and physiological data were obtained from the literature. The software EXCEL for Windows (version 2000) was used in order to implement the deposition model and also to allow the changes in parameters of interest. Initially, the implemented model was checked using the parameters defined by the ICRP and the results of the fraction deposition in the respiratory tract compartments were compared. Finally, morphological and physiological parameters from Brazilian adult male were applied and the fractional deposition calculated. The results suggest a significant variation in fractional deposition when Brazilian parameters are applied in the model. (author)

  11. TRUSSPOLE - Trussed Metallic Pole. Results of its application in 69 kV TL - simple circuit; Trusspole: poste metalico trelicado. Resultados da aplicacao em LT 69kV - circuito simples

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Paulo Ricardo Ralo Liberato da; Mello, Reynaldo Castriota de; Ferreira, Sirio Jose; Cadete, Marcia Augusta de Moura [MJMS - Mendes Junior Montagens e Servicos Ltda., Santa Luzia, MG (Brazil); Souza, Mauro Dias de [EGEL - Engenharia e Construcoes Ltda. (Brazil); Dantas, Roberto Pires [PLT - Projetos de Linhas de Transmissao Ltda. (Brazil)

    1995-12-31

    This report describes the origin, the development and the results of the TRUSSPOLE(Trussed Metallic Post) application in electric power transmission systems. It concerns a spatial trussed structure with a single metallic basis, similar to the concrete or wood pole, able to associate the technical and economical advantages of the trussed structures and the tubular or solid thick poles. The results obtained in the project, in load experiments of a study initial prototype and in the construction of a 69 kV Cs transmission line, with a 53.2 Km extension, using this type of structural solution, are shown 5 refs., 4 figs., 3 tabs.

  12. Introduction criteria and concepts on energy saving in the technical standards for electric installations; Introduccion de criterios y conceptos de ahorro de energia en las normas tecnicas para instalaciones electricas

    Energy Technology Data Exchange (ETDEWEB)

    Rincon Nader, Jorge A [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1993-12-31

    The project Introduction Criteria and Concepts on Energy Saving in the Technical Standards for electric installations, is described, whose immediate objective is to recommend and in some cases regulate the use of energy saving equipment and devices and the adoption of attitudes and procedures that convey into saving, and the rational and efficient use of the electric energy. [Espanol] Se describe el proyecto Introduccion de Criterios y Conceptos de Ahorro de Energia en las Normas Tecnicas para instalaciones electricas, que tiene como objetivo inmediato recomendar, y en algunos casos reglamentar el uso de equipos y dispositivos ahorradores y la adopcion de actitudes y procedimientos que conduzcan a un ahorro y uso racional y eficiente de la energia electrica.

  13. Study of the flooding and dehydration processes of a PEM fuel cell using the EIS technique; Estudio de los procesos de inundacion y deshidratacion en una celda de combustible tipo PEM mediante la tecnica EIS

    Energy Technology Data Exchange (ETDEWEB)

    Loyola-Morales, F.; Cano-Castillo, U. [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)]. E-mail: feloyola@yahoo.com.mx

    2009-09-15

    In this work, a study was conducted of the flooding and dehydration processes of a PEM fuel cell using the EIS technique. The experiments were conducted in a 50 cm{sup 2} cell. The gradual flooding of the system was induced by operating the cell at a potential of 0.3 V and maintaining the gas outlet closed (that is, stoichiometry of 1 for the anode (H{sub 2}) and the cathode (O{sub 2})) to enable the water produced by the reaction to accumulate inside. The gradual dehydration was induced by operating the cell at a potential of 0.3V and establishing a oxidized gas flow at a stoichiometry of 4. EIS tests were applied throughout both processes. The results showed that the EIS technique is highly sensitive for the analysis of the different degrees of the flooding processes by monitoring variations in the imaginary components of total impedance (Z{sup )} or the phase angle ({theta}). For low degrees of flooding, the technique had good sensitivity, between 1 and 6 Hz, while at high degrees of flooding the technique's greatest sensitivity was limited to a range between 1 and 2 Hz. In the case of the dehydration process of the system, the results showed that this type of process can be analyzed for variations in the value of the real component (Z{sup '}) as well as for the imaginary component of total impedance and variations in the phase angle. The analysis of dehydration with Z{sup '} was possible at a rather wide range, from 100 to 1000 Hz; with Z{sup }or {theta} it was only possible at a range of 20 to 200 Hz. [Spanish] En el presente trabajo, se llevo a cabo el estudio de los procesos de inundacion y deshidratacion de una celda de combustible tipo PEM mediante la tecnica EIS. Los experimentos fueron realizados en una celda de 50 cm{sup 2}. La inundacion gradual del sistema se indujo operando la celda a un potencial de 0.3 V de celda y manteniendo la salida de gases cerrada (i. e. estequiometria de 1 tanto en anodo (H{sub 2}) como en catodo (O{sub 2

  14. Introduction criteria and concepts on energy saving in the technical standards for electric installations; Introduccion de criterios y conceptos de ahorro de energia en las normas tecnicas para instalaciones electricas

    Energy Technology Data Exchange (ETDEWEB)

    Rincon Nader, Jorge A. [Instituto de Investigaciones Electricas, Cuernavaca (Mexico)

    1992-12-31

    The project Introduction Criteria and Concepts on Energy Saving in the Technical Standards for electric installations, is described, whose immediate objective is to recommend and in some cases regulate the use of energy saving equipment and devices and the adoption of attitudes and procedures that convey into saving, and the rational and efficient use of the electric energy. [Espanol] Se describe el proyecto Introduccion de Criterios y Conceptos de Ahorro de Energia en las Normas Tecnicas para instalaciones electricas, que tiene como objetivo inmediato recomendar, y en algunos casos reglamentar el uso de equipos y dispositivos ahorradores y la adopcion de actitudes y procedimientos que conduzcan a un ahorro y uso racional y eficiente de la energia electrica.

  15. Control of a deareador level of a thermoelectric power station using modern control techniques; Control de nivel de un deareador de una central termoelectrica utilizando tecnicas de control moderno

    Energy Technology Data Exchange (ETDEWEB)

    Chavez Estrada, Jose Israel

    1997-01-01

    The present work shows the implementation of the scheme of predictive control IMC (Internal Model Control) in order to control the level of the deareador of a combined cycle thermoelectric power station of (C.C.T.S.). The implementation has the purpose of looking for alternative strategies of control to the classic ones (PID`s) that more efficiently control the variables of interest, in addition to getting into the new control techniques of control. Following the philosophy of predictive control IMC the form to applying this technique is shown, as well as the implementation of this type of controllers. A comparison of predictive control IMC is made with the scheme of conventional control (three control elements PID`s ) used at present to control the level of the deareador in the Combined Cycle Thermoelectric Power stations of Dos Bocas, Veracruz, Mexico and of Gomez Palacio, Durango, Mexico. [Espanol] El presente trabajo muestra la implementacion del esquema de control predictivo IMC (Control con Modelo Interno) con el objeto de controlar el nivel del deareador de una Central Termoelectrica de Ciclo Combinado (C.T.C.C.). La implementacion tiene la finalidad de buscar estrategias de control alternas a las clasicas (PID`s) que controlen mas eficientemente la variable de interes, ademas de incursionar en las nuevas tecnicas de control. Siguiendo la filosofia del control predictivo IMC se muestra la forma de aplicar esta tecnica, asi como la implementacion de este tipo de controladores. Se hace una comparacion del control predictivo IMC con el esquema de control convencional (control de tres elementos PID`s) utilizando actualmente para controlar el nivel del deareador en las centrales termoelectricas de ciclo combinado de Dos Bocas, Veracruz y de Gomez Palacio, Durango en Mexico.

  16. A Sintaxe da Janela

    Directory of Open Access Journals (Sweden)

    Luís Antônio Jorge

    1993-12-01

    Full Text Available A preocupação fundamenta! do trabalho é de caráter ontológico: esboçar o problema das significações apriorísticas e autônomas dos elementos que compõem a sintaxe arquitetônica. O trabalho elege um desses elementos: a janela. Este artigo parte da aproximação histórica entre a janela e a secção da pirâmide visual, construção imaginária da teoria da perspectiva renascentista. A consideração da janela na linguagem arquitetônica implica reconhecer uma ambigüidade essencial: a janela deve inserir-se ordenadamente no plano da parede - raciocínio típico da modenatura - mas também relacionar-se com a imagem vista através dela, que extrapola o plano, ressaltando a tridimensionalidade - herança da perspectiva renascentista, fundamentada no espaço euclidiano. Ver janela ou ver através da janela são alternativas que se colocam tanto ao observador interno ao edifício, quanto ao externo. Texto de duplaface, a sintaxe da janela versa sobre o relacionamento desses dois lados

  17. Avaliação de oxigenadores de sangue utilizando principios de transferencia de massa e tecnica de perda de carga

    OpenAIRE

    Luis Melchert Faber Schmutzler

    2004-01-01

    Resumo: Oxigenadores de sangue tipo de membrana são construídos para trocarem gases de respiração através de uma área de contato, a sua chamada área de troca. Devido a características do processo de fabricação, esta área pode softer variações. Neste trabalho procurou-se desenvolver métodos de avaliação da variação desta área, por meio da medição da transferência de massa e da perda de carga. A técnica utilizando transferência de massa gerou dois métodos de avaliação, um utilizando como fase l...

  18. Cooperative research and the carbon fiber development for application in uranium centrifuges project; Pesquisa cooperativa e o desenvolvimento de fibra de carbono para aplicacao em ultracentrifugas nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Queiroz, Paulo Cesar Beltrao [Centro Tecnologico da Marinha em Sao Paulo (CTMSP), Sao Paulo, SP (Brazil)], e-mail: paulocbqueiroz@gmail.com; Zouain, Desiree Moraes [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)], e-mail: dmzouain@ipen.br

    2009-08-15

    This paper analyzes both the carbon fiber-based development for uranium centrifuges and the research project that supports its development effort over time. The carbon fibre-based engineering properties make it a valuable supply for high technological products, such as uranium ultracentrifuge. There is no production of such fibers in Brazil. Its trade is subject to international market restrictions due to carbon fibers' dual applications. The Centro Tecnologico da Marinha em Sao Paulo (CTMSP), the Universidade de Campinas (UNICAMP), the Universidade de Sao Paulo (USP), the RADICIFIBRAS Company, and the Financiadora de Estudos e Projetos (FINEP), which is responsible for the project financial support, established a partnership aiming the development of a domestic polyacrylonitrile (Pan)-based carbon fiber industry. Such alliances or technological partnerships are best known in developed countries, such as USA and Japan, as Cooperative Research or Research Joint Ventures (RJV). (author)

  19. Tópicos da teoria da relatividade

    OpenAIRE

    Fragata, Paulo Renato Ferreira

    2013-01-01

    Dissertação de Mestrado, Matemática para Professores, 25 de Outubro 2013, Universidade dos Açores. Qualquer descrição física da natureza tem por base a especificação da posição e do instante em que decorre determinado acontecimento. Para tal, é necessário recorrer a um sistema de coordenadas, escolhido por cada observador, do modo que ele achar mais pertinente. Dada a generalidade na escolha do sistema de coordenadas, é útil conhecer as regras que nos permitem comparar cálculos feitos em d...

  20. Phytoremediation techniques; Tecnicas de fitorremediacion

    Energy Technology Data Exchange (ETDEWEB)

    Bonilla, A.; Urzelai, A.; Bartolome, I.; Cagigal, E. [Unidad de Medio Ambiente. Bilbao (Spain)

    2000-07-01

    The ground pollution by heavy metals is a problem is a problem widely spreaded in the majority of the industrialised countries. Therefore, areas with high concentration of heavy metals in their ground are often associated with the areas in which mining activities have been developed and areas highly industrialised. This situation implies a deficient ecosystem behaviour. (Author)

  1. MACIEZ DA CARNE BOVINA

    Directory of Open Access Journals (Sweden)

    Antonio Bento Mancio

    2006-10-01

    Full Text Available Dentre as características de qualidade da carne bovina, a maciez assume posição de destaque, sendo considerada a característica organoléptica de maior influência na aceitação da carne por parte dos consumidores. A dureza da carne pode ser dividida em dureza residual, causada pelo tecido conjuntivo e outras proteínas do estroma, e dureza de actomiosina, causada pelas proteínas miofibrilares. Dentre os fatores que influenciam a maciez da carne, podem ser destacados a genética, a raça, a idade ao abate, o sexo, a alimentação, o uso de agentes hormonais (?-adrenérgicos e os tratamentos post-mortem. A qualidade final da carne é resultante de tudo o que aconteceu com o animal durante toda a cadeia produtiva. Devem-se assegurar procedimentos adequados de transporte, armazenamento, manipulação, exposição e preparo da carne, a fim de se obter um produto de melhor qualidade. PALAVRAS-CHAVE: Calpaínas, calpastatina, qualidade da carne, rigor mortis, tecido muscular.

  2. GERONTOLOGIA: ESTADO DA ARTE

    Directory of Open Access Journals (Sweden)

    Vera M.A.Tordino Brandão

    2010-02-01

    Full Text Available O Programa de Gerontologia da PUC desenvolve pesquisas focando o ser na perspectiva do envelhecimento. As atividades são interdisciplinares e reúnem docentes, alunos e ex-alunos. Nesta mesa redonda apresentamos um panorama sobre estes estudos. Na área da educação e comunicação o foco está centrado na longevidade e na preparação e representação social da velhice. São ressaltadas como temáticas: a formação continuada de profissionais e pesquisadores; o significado da religiosidade/espiritualidade ao longo da trajetória, e sua repercussão na qualidade de vida do idoso; os programas sócio-educacionais para idosos e concepções sobre educação; o monitoramento da mídia na cobertura da crescente longevidade e seus impactos. Em identidade e modos de morar reflete-se sobre soluções planejadas e sua adequação para a inclusão do envelhecimento populacional como questão fundamental, que implica a elaboração de novas políticas, investigações e, especialmente, apresenta-se como questão a ser analisada, refletida e vivenciada pela sociedade em geral. Quanto à saúde, o Programa desenvolve várias pesquisas numa abordagem interdisciplinar tendo como objetos de estudo: a terapia assistida com animais direcionada a idosos com diagnóstico de Alzheimer; o acompanhamento terapêutico e o atendimento psicoterapêutico em grupo, a aplicação da técnica de Calatonia em idosos moradores de ILPI, além da investigação sobre impasses clínicos no idoso frágil. Palavras-chave: gerontologia, longevidade, envelhecimento

  3. Conjecturas da Epistemológia Jurídica e Aspectos da Teoria da Linguagem

    OpenAIRE

    Oliveira, Rita de Cássia Cartelli de; Cesumar; Motta, Ivan Dias; Cesumar

    2008-01-01

    Apresentar-se-ão reflexões em torno da epistemologia jurídica e alguns aspectos da teoria da linguagem; a necessidade de acompanhamento e aprimoramento da linguagem jurídica, para que o direito não se distancie da realidade, mantendo-se apenas como um sistema do status quo; uma breve análise de algumas teorias da ciência do direito e da linguagem; as especificidades dos termos lingüísticos para a análise da ciência do direito, pautada na contemporaneidade sob a perspectiva humanista, buscando...

  4. CONDICIONANTES DA COMPETITIVIDADE EMPRESARIAL

    Directory of Open Access Journals (Sweden)

    José Luiz Contador

    2010-03-01

    Full Text Available Este trabalho examina teoricamente os fatores determinantes da competitividade do produto e do negócio, imprescindíveis à elaboração de estratégias competitivas que visam à obtenção e sustentação de vantagens competitivas. Esse tema é objeto tanto da área de marketing estratégico quanto da de estratégia empresarial. Nas duas áreas, há um ponto de consenso que afirma que a empresa deve diferenciar sua oferta para conquistar e manter vantagem competitiva. Mas, os estudos conduzidos por meio do modelo de Campos e Armas da Competição revelaram que a empresa pode diferenciar seu produto e/ou serviço de modo mais amplo, levando em consideração, na formulação da sua estratégia competitiva, também o campo da competição, quer do produto, quer dela própria. Assim, o objetivo deste artigo é evidenciar que, para a empresa ser competitiva, além de diferenciar seu produto e/ou seu serviço no sentido tradicional, ela precisa: 1 diferenciar seu produto incluindo a definição em quais campos vai competir em cada segmento; e 2 escolher as armas da competição que irá utilizar e definir a intensidade de cada arma. Para atingir tal objetivo, foram necessários vários conceitos do modelo de Campos e Armas da Competição: campo da competição, arma da competição, tese do modelo, configuração dos campos da competição, campo coadjuvante, produto coadjuvante e par produto-mercado. Como uma proposta inovadora sempre desperta dúvida, é mostrado o processo de validação do modelo de Campos e Armas da Competição e são discutidas sua universalidade, consistência e completude.

  5. Seminar on utilization of nuclear techniques in the agricultural research carried out in FONAIAP. Abstracts and lectures; Seminario sobre utilizacion de tecnicas nucleares en la investigacion agropecuaria realizada en el FONAIAP. Resumenes y ponencias

    Energy Technology Data Exchange (ETDEWEB)

    Romero S, Alfredo [ed.; Bracamonte, Magaly [Fondo Nacional de Investigaciones Agropecuarias (FONAIAP), Centro Nacional de Investigaciones Agropecuarias (CENIAP), Maracay (Venezuela)

    1997-07-01

    tropicales y su transferencia a Brachiaria humidicola en asociacion; unidad de analisis isotopicos estables N{sup 1}5; efecto de diferentes formas de colocacion del fertilizante en el suelo en la eficiencia de uso del N evaluada mediante la tecnica isotopica y el N absorbido por el cultivo; aplicacion de progesterona y testosterona en el diagnostico y control de la reproduccion en ganaderias mestizas; avances en el seguimiento de sistemas de produccion en ganaderia de doble proposito en el area de Guayabal, estado Guarico; investigaciones acuicolas con tecnicas de energia nuclear; desarrollo de la base de datos bibliografia edafologica venezolana.

  6. Efeito da eutonia no tratamento da fibromialgia

    OpenAIRE

    Maeda,Cecília; Martinez,José Eduardo; Neder,Matilde

    2006-01-01

    OBJETIVO: avaliar a eutonia como método terapêutico auxiliar no tratamento da fibromialgia (FM). MÉTODOS: estudou-se um grupo de 20 mulheres, segundo os critérios do American College of Rheumatology (ACR), com duração mínima de seis meses, sem alterações no tratamento medicamentoso ou prescrição de exercícios nesse período. As pacientes foram avaliadas através do questionário de dados sociodemográficos; Escala Visual Analógica (EVA) para dor e questionário genérico de avaliação da qualidade d...

  7. Het Italiaanse voorzetsel da

    NARCIS (Netherlands)

    Boer, M.G. de

    2010-01-01

    SAMENVATTING In een voorzetselstudie in het kader van Jackendoffs semantische theorie wordt het sterk polyseme Italiaanse voorzetsel da geanalyseerd als een verzameling deelbetekenissen waarbij de meeste door een of meer semantische regels afgeleid kunnen worden van de basisbetekenis ruimtelijke

  8. ESPECTROS INFRAVERMELHOS DA CREATINA

    Directory of Open Access Journals (Sweden)

    Kumiko K. Sakane

    2011-08-01

    Full Text Available São apresentados espectros infravermelhos da creatina, na faixa de 4000 a 400 cm−1. Os resultados são comparados com espectros observados e calculados, publicados na literatura.

  9. Significados Ocultos da Enfermagem

    Directory of Open Access Journals (Sweden)

    Wiliam César alves Machado

    2011-04-01

    Full Text Available Sabe-se que as ações de cuidar em enfermagem foram sendo moldadas através da história da humanidade e deram-se, majoritariamente, na esfera do subjetivo que permeia as interações existenciais do ser humano que cuida e daquele que recebe cuidados. Campo fecundo para intercâmbios eletromagnéticos. Suas origens remontam ao cuidado prestado por mães, pais, avós, irmãos e demais familiares incumbidos da responsabilidade de ajudar entes recém-natos, crianças, doentes e idosos em suas necessidades de cuidados para preservação da vida.

  10. ORIGEM DA ANGTIA MODERNA

    Directory of Open Access Journals (Sweden)

    Edvino Rabuske

    1971-01-01

    Full Text Available O tema que me foi proposto "origem da angtia moderna". Por certo, um tema extremamente complexo. Trata-se de surpreender as modalidades modernas de um fenomeno, antigo como o prrio homem. Visando contribuir numa semana de reflexo sobre a esperan crist em, que esta abordada a partir, de diversos gulos, parece indicado que esta exposio n se atenha a um ico aspeto da angtia.

  11. Mechanical properties of unidirectional laminates with carbon fiber and epoxy resin DA4518U USG0540; Propiedades mecanicas de los laminados unidireccionales de fibra de carbono con resina epoxica DA4518U Y USG0540

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Melo, Monica I.; Rubio Gonzalez, Carlos; Del Llano Vizcaya, Luis [CIDESI. Centro de Ingenieria y Desarrollo Industrial Queretaro, Queretaro (Mexico)]. E-mail: monica.sanchez.melo@gmail.com; crubio@cidesi.mx; lvizcaya@cidesi.mx

    2010-11-15

    In this paper, a study of the mechanical properties of composite materials with carbon fiber and epoxy resin DA4518U USG0540 is described, due to no such properties have been published to date, this study is performed. This work is developed at the Center for Engineering and Industrial Development (CIDESI). As a part of this research, the elastic modulus, Poisson's ratio and shear modulus are obtained both analytical and experimentally. Tests are performed to high cycle fatigue in both materials, and then these specimens are examined by ultrasound with the immersion technique in order to detect variations in material delamination, changes in obtain the attenuation and wave propagation. Finally, the tensional test to the specimen fatigue is repeated for changes in their mechanical properties. Also, a comparison is made between the results to determine which of those materials is more reliable for future applications in the aerospace industry. [Spanish] En este articulo se describe el estudio de las propiedades mecanicas de los materiales compuestos de fibra de carbono con resina epoxica DA4518U y USG0540, dicho estudio se lleva a cabo debido a que, a la fecha, no se han publicado tales propiedades, este trabajo se desarrollo en el Centro de Ingenieria y desarrollo Industrial (CIDESI). Como parte de esta investigacion, se obtienen analitica y experimentalmente el modulo de elasticidad, modulo de Poisson y modulo de corte. Tambien se realizan pruebas de fatiga a altos ciclos en ambos materiales, posteriormente estos especimenes se examinan por ultrasonido con la tecnica de inmersion para detectar variaciones en el material como delaminaciones, cambios de atenuacion y en la velocidad de propagacion de onda. Por ultimo se repite la prueba de tension a la probeta fatiga para conocer los cambios en sus propiedades mecanicas. Asi mismo se hace una comparacion entre los resultados obtenidos, para determinar cual material es mas confiable para futuras aplicaciones en la

  12. Load curve modelling of the residential segment electric power consumption applying a demand side energy management program; Modelagem da curva de carga das faixas de consumo de energia eletrica residencial a partir da aplicacao de um programa de gerenciamento de energia pelo lado da demanda

    Energy Technology Data Exchange (ETDEWEB)

    Rahde, Sergio Barbosa [Pontificia Univ. Catolica do Rio Grande do Sul, Porto Alegre (Brazil). Dept. de Engenharia Mecanica e Mecatronica]. E-mail: sergio@em.pucrs.br; Kaehler, Jose Wagner [Pontificia Univ. Catolica do Rio Grande do Sul, Porto Alegre (Brazil). Faculdade de Engenharia]. E-mail: kaehlerjw@pucrs.br

    2000-07-01

    The dissertation aims to offer a current vision on the use of electrical energy inside CEEE's newly defined area of operation. It also intends to propose different alternatives to set up a Demand Side Management (DSM) project to be carried out on the same market segment, through a Residential Load Management program. Starting from studies developed by DNAEE (the Brazilian federal government's agency for electrical energy), to establish the load curve characteristics, as well as from a research on electrical equipment ownership and electricity consumption habits, along with the contribution supplied by other utilities, especially in the US, an evaluation is offered, concerning several approaches to residential energy management, setting up conditions that simulate the residential segment's scenarios and their influence on the general system's load. (author)

  13. Effect of gamma radiation on the growth of Aspergillus Flavus aflatoxins producer and on the use of polymerase chain reaction technique (PCR) in samples of maize grains artificially inoculated; Efeitos da radiacao gama no crescimento de Aspergillus flavus produtor de aflatoxinas e no emprego da tecnica da Reacao em Cadeia da Polimerase (RCP) em amostras de graos de milho inoculadas artificialmente

    Energy Technology Data Exchange (ETDEWEB)

    Aquino, Simone

    2003-07-01

    The aim of this present study was to verify the effects of gamma radiation on the growth of Aspergillus flavus Link aflatoxins producer; to demonstrate the application of Polymerase Chain Reaction (PCR) technique in the diagnostic of A. Flavus, as well to verify the effect of radiation in the profile of DNA bands. Twenty samples of grains maize with 200 g each were individually irradiated with 20 kGy, to eliminate the microbial contamination. In following, the samples were inoculated with an toxigenic A. flavus (1x10{sup 6} spores/ml), incubated for 15 days at 25 deg C with a relative humidity of around 97,5% and irradiated with 0, 2; 5 and 10 kGy. The samples, 5 to each dose of irradiation, were individually analyzed for the number of fungal cells, water activity, viability test (fluorescein diacetate and ethidium bromide), PCR and aflatoxins (AFB) detection. The results showed that the doses used were effective in reducing the number of Colony Forming Units (CFU/g) mainly the doses of 5 and 10 kGy. In addition, the viability test showed a decrease of viable cells with increase of irradiation doses. The reduction of AFB{sub 1} and AFB-2, was more efficient with the use of 2 kGy in comparison with the dose of 5 kGy, while the dose of 10 kGy, degraded the aflatoxins. Thereby, it was observed that AFB2 showed to be more radiosensitive. The use of PCR technique showed the presence of DNA bands, in all samples. (author)

  14. 19. National seminar on the rational use of energy and exposition of equipment and services. Transactions. [Selected Papers]; 19. Seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios. Memoria Tecnica. [Ponencias seleccionadas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    This document contains the technical proceedings of the 19 national seminar on the rational use of energy and exposition of equipment and services, organized by the Asociacion de Tecnicos y Pofesionistas en Aplicacion Energetica (ATPAE) (Association of Technicians and Professionals on Energy Application) conducted in Mexico City on September 21-25, 1998. This seminar encompassed subjects such as: energy saving in the energy sector, energy efficiency in industrial processes and practical developments, practical cases of energy saving in industry, energy saving in buildings, transportation, non-renewable energy utilization and environmental impact and eco-energies. [Espanol] Este documento contiene la memoria tecnica del 19 seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios, organizado por la Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), en Mexico, D.F, los dias 21-25 de septiembre de 1998. Este seminario trato de temas tales como: Ahorro de energia en el sector energetico, eficiencia energetica en procesos industriales y desarrollos practicos, casos practicos de ahorro de energia en la industria, ahorro de energia en edificaciones, transporte, aprovechamiento de energias renovables, e impacto ambiental y eco-energias.

  15. Proceedings of the 20 National seminar on the rational use of energy and exposition of equipment and services. [Selected Papers]; 20. Seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios. Memoria Tecnica. [Ponencias seleccionadas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    This document contains the proceedings of the 20 national seminar on the rational use of energy and exposition of equipment and services, organized by the Asociaciacion de Tenicos y Profesionistas en Aplicacion Energetica (ATPAE), in Mexico, D.F, from the 15 to the 19 of November of 1999. This Seminar covered subjects such as: Energy saving in the power sector, power efficiency in industrial processes and practical developments, practical cases of energy saving in industry, energy saving in constructions, transport, utilization of renewable energies, and energy and the environment. [Spanish] Este documento contiene la memoria tecnica del 20 seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios, organizado por la Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), en Mexico, D.F., del 15 al 19 de noviembre de 1999. Este seminario trato de temas tales como: Ahorro de energia en el sector energetico, eficiencia energetica en procesos industriales y desarrollos practicos, casos practicos de ahorro de energia en la industria, ahorro de energia en edificaciones, transporte, aprovechamiento de energias renovables, y energia y ambiente.

  16. Proceedings of the 21 National seminar on the rational use of energy and exposition of equipment and services. [Selected Papers]; 21 Seminario nacional sobre el uso racional del a energia y exposicion de equipos y servicios. Memoria Tecnica. [Ponencias seleccionadas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    This document contains the proceedings of the 21 national seminar on the rational use of energy and exposition of equipment and services, organized by the Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), in Mexico, D.F., from the 14 to the 16 of March of 2001. This Seminar covered subjects such as: Energy saving in the power sector, power efficiency in industrial processes and practical developments, practical cases of energy saving in industry, energy saving in constructions, transport, utilization of renewable energies and the environment. [Spanish] Este documento contiene la memoria tecnica del 21 seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios, organizado por la Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), en Mexico, D.F., del 14 al 16 de marzo de 2001. Este seminario trato de temas tales como: Ahorro de energia en el sector energetico, eficiencia energetica en procesos industriales y desarrollos practicos, casos practicos de ahorro de energia en la industria, ahorro de energia en edificaciones, transporte, aprovechamiento de energias renovables y ambiente.

  17. 19. National seminar on the rational use of energy and exposition of equipment and services. Transactions. [Selected Papers]; 19. Seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios. Memoria Tecnica. [Ponencias seleccionadas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-12-31

    This document contains the technical proceedings of the 19 national seminar on the rational use of energy and exposition of equipment and services, organized by the Asociacion de Tecnicos y Pofesionistas en Aplicacion Energetica (ATPAE) (Association of Technicians and Professionals on Energy Application) conducted in Mexico City on September 21-25, 1998. This seminar encompassed subjects such as: energy saving in the energy sector, energy efficiency in industrial processes and practical developments, practical cases of energy saving in industry, energy saving in buildings, transportation, non-renewable energy utilization and environmental impact and eco-energies. [Espanol] Este documento contiene la memoria tecnica del 19 seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios, organizado por la Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), en Mexico, D.F, los dias 21-25 de septiembre de 1998. Este seminario trato de temas tales como: Ahorro de energia en el sector energetico, eficiencia energetica en procesos industriales y desarrollos practicos, casos practicos de ahorro de energia en la industria, ahorro de energia en edificaciones, transporte, aprovechamiento de energias renovables, e impacto ambiental y eco-energias.

  18. As dobras da imagem

    Directory of Open Access Journals (Sweden)

    Profª. Drª. Fátima Antunes da Silva (Yaska Antunes

    2009-05-01

    Full Text Available O presente trabalho tem por objetivo tentar compreender a produção da imagem visual no teatro. Para isso se vale da apropriação livre do conceito de “dobra? de Gilles Deleuze para se referir à multiplicidade de imagens criadas pelas diversas modalidades artísticas. Como no teatro há o entrelaçamento de imagens verbais – palavras enunciadas pelo texto dramático ou teatral – com imagens visuais – a visualidade advinda da composição cênica concreta que organiza no espaço ator e objeto –, a ênfase só podia recair sobre estas duas formas imagéticas. No caso do teatro, surge ainda a percepção de que para além da materialidade da cena, outras imagens emergem do confronto entre palco e platéia. Nesse sentido, imagem teatral seria então aquilo que surge da interação entre ator e espectador. A contribuição desse trabalho pode estar no fato de atualizar certos conceitos sobre a criação da imagem poética na poesia e no cinema para aplicá-los ao teatro. Ao recuperar o pensa-mento de Otávio Paz, Alfredo Bosi, Sergei Eisenstein, entre outros, bus-ca-se promover uma reflexão mais aprofundada sobre a construção visual no teatro.

  19. Model of the daily production of biogas from a Indian type digester using techniques of identification systems; Modelo da producao diaria de biogas de um biodigestor tipo indiano utilizando tecnicas de identificacao de sistemas

    Energy Technology Data Exchange (ETDEWEB)

    Borges Neto, Manuel Rangel [Centro Federal de Educacao Tecnologica de Petrolina (CEFET-PET), PE (Brazil)], e-mail: rangel@cefetpet.br; Carvalho, Paulo Cesar Marques de; Almeida, Otacilio da Mota [Universidade Federal do Ceara (PPGEE/UFC), Fortaleza, CE (Brazil). Programa de Pos Graduacao em Engenharia Eletrica

    2008-07-01

    This paper brings a study about utilization of curve adjustments and prediction models of biogas production from a biodigestor fed by sheep manure, to help in the development of a optimal controller to production and use of biogas generated by Indian type biodigestors applied to semiarid. From experimental data were applied simultaneously the Least Mean Squares and Recursive Least Squares methods algorithms and after proper analysis, to validation, a new experimental data set was used to the chosen model. (author)

  20. Study of a new technique for measuring the travel time of ultrasonic waves using the frequency spectrum; Estudo de uma nova tecnica de medida do tempo de percurso da onda ultra-sonica usando o espectro de frequencia

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Allan Xavier dos

    2010-07-01

    During the operation of a nuclear plant and other industrial plants, the operational time and the exposition to severe working conditions may cause the wear of its components, consequently, compromising the safety and the performance of the installation. The implementation of periodical inspections helps to ensure the safe operation and the best performance of the plant. In this way, the use of ultrasonic techniques for inspection and materials characterization becomes more and more attractive, since they offer quick, precise results and are technically ease to implement. The usual ultrasonic techniques, need to the measure the travelling time of the ultrasonic wave in the material examined in order to extract information useful to characterize it. Thus, the measurement of the travelling time of the ultrasonic wave is the overriding factor in most of the applications made with ultrasound. In this work a new technique was developed for measuring the travelling time of the ultrasonic wave using a Fourier's Fast Transformer (FFT). It will be shown mathematically and experimentally that it is possible to use the ultrasonic signal in the frequency domain to determine the travelling time of the ultrasonic wave. Five experiments were carried out for the experimental validation of this new technique. The materials used were 20 ceramic pastilles with different porosities and 3 aluminum plates of different thicknesses. The obtained results have shown that the new technique proposed in this work was able to determine the travelling time of the ultrasonic wave with the same precision as the conventional technique. It was shown, furthermore, that this new technique is able to measure the travelling time of the ultrasonic wave in situations where the conventional technique cannot be applied greatly expanding the range of application of ultrasonic testing and inspections. (author)

  1. Use of the HRICP-MS technique for the evaluation of boron isotopes in Eucalitpus plants; Uso da tecnica HRICP-MS na avaliacao dos isotopos de boro em eucalipto

    Energy Technology Data Exchange (ETDEWEB)

    Mattiello, Edson Marcio; Ruiz, Hugo Alberto; Silva, Ivo Ribeiro da, E-mail: mattiello@ufv.b [Universidade Federal de Vicosa (UFV), MG (Brazil). Dept. de Solos; Sarkis, Jorge Eduardo de Souza [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-07-01

    The {sup 10}B isotope tracer technique is essential to study the B mobility in plants. Factors that can influence the quality of measured B isotope ratios were optimized experimentally using High Resolution Inductively Coupled Plasma Mass Spectrometry (HRICP-MS). An isotopically certified standard (NIST SRM-951) was used. The best combination was obtained using a resolution of 400, a RF power of 1250 W, followed by 15 measurements over a 10-s integration period each (15*10). Utilizing this approach it was possible to obtain a precision of 0.3 % in standard material and 2z % in the experimental samples. The results show the importance of establishing optimized work conditions before carrying out the analytical series. (author)

  2. A comparison between three inspection techniques on a sub sea pipeline in Campos Basin; Comparacao do resultado de tres tecnicas de inspecao com pigs instrumentados em um mesmo oleoduto da Bacia de Campos

    Energy Technology Data Exchange (ETDEWEB)

    Franzoi, Aldo Renato; Bueno, Sergio Ibaje Oliveira; Camerini, Claudio S; Marinho, Carla; Nazario, Fabiana [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Freitas, Miguel; Weid, Jean Pierre von der [Pontificia Univ. Catolica do Rio de Janeiro, RJ (Brazil)

    2005-07-01

    The PPG-1/PGP-1 crude pipeline links Pargo and Garoupa platforms at the Campos Basin. Garoupa process the crude removing water and transferring it to the coast. During 10 years this pipeline had operated with more than 20% of water. In 2001, the pipeline was surveyed with a MFL pig. The results showed internal corrosion in almost the entire 22 inches pipeline concentrated on its bottom part (channeling corrosion). This type of indication has a high difficult on sizing using MFL tools. The logistic to replace the damaged pipeline was started but before that, the pipeline was surveyed with a US pig to improve the sizing of all defects. The results of the US pig confirmed the MFL report and were decided to keep all tasks in order to replace the corroded segment. At that time, a new inspection pig was under development on PETROBRAS Research Center in cooperation with PUC-Rio/CETUC. It was decided run this tool in that pipeline to compare its results against the two most common methods used for pipelines inspections. (author)

  3. Development of a new technic for breast attenuation correction in myocardial perfusion scintigraphy using computational methods; Desenvolvimento de uma nova tecnica para correcao da atenuacao por tecidos moles em cintilografia de perfusao miocardica utilizando metodos computacionais

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Anderson de

    2015-07-01

    Introduction: One of the limitations of nuclear medicine studies are false-positive results that lead to unnecessary exams and procedures associated to morbidity and costs to the individual and society. One of the most frequent causes for reducing the specificity of myocardial perfusion imaging (MPI) is photon attenuation, especially by breast in women. Objective: To develop a new technique to compensate the photon attenuation by women breasts in myocardial perfusion imaging with {sup 99m}Tc-sestamibi, using computational methods. Materials and methods: A procedure was proposed which integrates Monte Carlo simulation, computational methods and experimental techniques. Initially, were obtained the chest attenuation correction percentages using a phantom Jaszczak and breast attenuation percentages by Monte Carlo simulation method, using the EGS4 program. The percentages of attenuation correction were linked to individual patients' characteristics by an artificial neural network and a multivariate analysis. A preliminary technical validation was done by comparing the results of the MPI and catheterism (CAT), before and after applying the technique to 4 patients. The t test for parametric data, Wilcoxon, Mann-Whitney and X{sup 2} for the others were used. Probability values less than 0.05 were considered statistically significant. Results: Each increment of 1 cm in the thickness of breast was associated to an average increment of 6% on photon attenuation, while the maximum increase related to breast composition was about 2%. The average chest attenuation percentage per unit was 2.9%. Both, the artificial neural network and linear regression, showed an error less than 3% as predictive models for percentage of female attenuation. The anatomical-functional correlation between MPI and CAT was maintained after the use of the technique. Conclusion: Results suggest that the proposed technique is promising and could be a possible alternative to other conventional methods employed today. (author)

  4. Subsidies to cytogenetic dosimetry technique generated from analysis of results of Goiania radiological accident; Subsidios a tecnica de dosimetria citogenetica gerados a partir da analise de resultados obtidos com o acidente radiologico de Goiania

    Energy Technology Data Exchange (ETDEWEB)

    Ramalho, Adriana Teixeira

    1993-06-15

    Following the Goiania radiation accident, which occurred in September of 1987, peripheral lymphocytes from 129 exposed or potentially exposed individuals were analyzed for the frequency of unstable chromosomal aberrations (dicentrics and centric rings) to estimate absorbed radiation dose. During the emergency period, the doses were assessed to help immediate medical treatment. After this initial estimation, doses were reassessed using in vitro calibration curves produced after the accident, more suitable for the conditions prevailing in Goiania. Dose estimates for 24 subjects exceeded 0,5 Gy. Among those, 15 individuals exceeded 1,0 Gy and 5 exceeded 3,0 Gy. None of the estimates exceeded 6,0 Gy. Four of the subjects died. During the emergency period, a cytogenetic follow-up of 14 of the exposed patients was started, aiming to observe the mean lifetime of lymphocytes containing dicentric and ring aberrations. The results suggest that for the highly exposed individuals the disappearance rate of unstable aberrations follows a two- term exponential function. Up to 470 days after the exposure, there is a rapid fall in the aberration frequency. After 470 days, the disappearance rate is very slow, almost constant. The estimated average half-time of elimination of dicentrics and rings among the highly exposed group (> 1 Gy) was 140 days for the initial period after the exposure (up to 470 days). This value is significantly shorter than the usually accepted value of 3 years reported in the literature. Mean disappearance functions of unstable chromosome aberrations were inferred, to be applied in accident situations in which there is a blood sampling delay. Statistical analysis of possible correlations between the individual half-times and biological parameters, such as sex, age, leukopenia level shown during the critical period, absorbed dose (initial frequency of chromosomal aberrations) and the administration of the bone marrow stimulating factor (rHuGM-CSF) was performed. None of these parameters showed correlation to the half-time of disappearance of chromosomal aberrations. For one patient who had high {sup 137}Cs body burden, the aberration yield at first increased in reasonable agreement with the estimated doses due to internal contamination, and later began to fall following the decorporation of {sup 137}Cs.

  5. Proposal for inclusion of the risk based inspection technique in Regulatory Standard NR 13; Proposta de inclusao da tecnica de inspecao baseada em risco na Norma Regulamentadora NR 13

    Energy Technology Data Exchange (ETDEWEB)

    Esteves, Vinicius Teixeira; Lima, Marco Aurelio Oliveira [Det Norske Veritas Ltda. (DNV), Rio de Janeiro, RJ (Brazil)

    2012-07-01

    In Brazil, the Regulatory Standard n. 13 (NR 13) establishes requirements for the inspection of boilers and pressure vessels which has main objective of preventing accidents with these types of equipment. Additionally, it has the Risk-Based Inspection (RBI) technique as an effective way to manage the mechanical integrity of various types of static mechanical equipment by through an inspection planning based on the risk factor. In this study, it is being proposed to include the RBI technique, in the NR 13, for the planning and definition of periods for the safety inspection of boilers and pressure vessels in order to promote an increase in the operational safety in process industries in Brazil. In this study it was carried out a critical analysis of NR 13 and RBI, and beyond that a bibliographic research of various international documents that relate the operational safety of pressurized equipment with the inspection activity, and the acceptability of RBI by governments, agencies and organizations around the world. It is considered that the inclusion and formal acceptance of RBI technique in the NR 13 must be accompanied by a rigorous control to avoid the 'trivialization' of its use and ensure the implementation rational, efficient and reliable. Finally, it was developed and suggested basic elements and minimum requirements to be inserted in the NR 13, to be attended, in order mandatory, by the companies that choose the implementation and use of the RBI technique as a tool for the planning of safety inspection of boilers and pressure vessels. It is concluded that the formal acceptance of the RBI technique in the NR 13 could aggregate much value to this standard, with regard to the prevention of accidents involving boilers or pressure vessels, and provide a technological jump to the companies that make use of RBI technique in Brazil. (author)

  6. In vitro evaluation of the chemical and morphological changes of the enamel surface using different bleaching techniques; Avaliacao in vitro das alteracoes quimica e morfologica da superficie do esmalte utilizando diferentes tecnicas de clareamento dental

    Energy Technology Data Exchange (ETDEWEB)

    Mattos, Alessandra de Siervi

    2003-07-01

    'In vitro' evaluation through MEV and EDS of the morphological and chemical changes, respectively, of the bovine enamel, submitted to different bleaching techniques. For the MEV evaluation eighteen apical thirds were pigmented and divided into two parts. One half of each sample was the control and the other half was bleached according to the protocol of each test group (n= 6). Group I - home bleaching with a 10% carbamide peroxide; group II bleaching with 35% hydrogen peroxide and LED; group III - bleaching with 35% hydrogen peroxide with diode laser bleaching. The same procedure was done with the eighteen samples which were analyzed through EDS and which had their buccal surface grinded and polished before the bleaching procedure in order to obtain more precise values of the fraction of calcium and phosphorus. The results showed no morphological changes among the analyzed control halves and the bleached halves. There was not a statistical significant difference about Ca and P values, among the control halves and the bleached halves regarding the chemical components (p< 0,05). (author)

  7. Development of a polymeric matrix for composite material produced by the filament winding technique; Desenvolvimento de matriz polimerica visando a producao de material composito atraves da tecnica de enrolamento filamentar

    Energy Technology Data Exchange (ETDEWEB)

    Sobrinho, Ledjane Lima; Ferreira, Marisilvia; Bastian, Fernando Luiz [Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia

    2005-07-01

    The study of the resin for composite materials to be produced by the filament winding technique is very important, since the good applicability of the technique is in part function of the characteristics of the resin. The objective of this work is the development of a polymeric matrix using vinyl ester resin for composite to be produced by the filament winding technique. Therefore, vinyl ester resin systems developed from Derakane 411-350 by varying the percentage of cure agent and activator. The system which presented the best behavior in tension (Yong's modulus 2,42 GPa, tensile strength = 47,67 MPa, elongation = 7,31 % and fracture toughness 2,67 J), adequate gel time and exothermic peak for the manufacture process was submitted to hygrothermal aging by immersion in water at 60 deg C for a maximum period of 64 days. (author)

  8. Feasibility evaluation of using spent FCC catalyst for metals treatment from industrial waste; Avaliacao do potencial de recuperacao de niquel de catalisadores equilibrados (E-CAT) atraves da tecnica de remediacao eletrocinetica

    Energy Technology Data Exchange (ETDEWEB)

    Baptista, Adalberto; Ponte, Haroldo de Araujo [Universidade Federal do Parana (UFPR), Curitiba, PR (Brazil)

    2004-07-01

    The purpose of this work is to describe the feasibility evaluation using FCC catalyst for treatment from industrial wastes increasing the life time of the spent catalysts and reducing the environmental impact. Evaluated the reutilization of catalyst in process recovery of nickel adsorbed. The technique used was the Electrokinetic Remediation. This technique is based in application of a direct current of low intensity or low potential between the electrodes located in soil. The pollutants are mobilized how loaded species or particles. It used a electrokinetic reactor with approximated volume of 1200 cm{sup 3}, where the residue is placed. In your extremity are adapted two cameras of acrylic, being one anodic, with steel inox 304 electrode, and other cathodic, with lead electrode. In anodic camera, it was injected, with aid a bomb, a solution of sulfuric acid, which work as electrolyte, to a flow rate of 20 ml/h. Was evaluated the desorption of Nickel in the equilibrium catalyst submitting a variation of the conditions of the concentration and potential. (author)

  9. In vivo evaluation of Fe in the human skin and swins mice skin through the X-rays fluorescence technique; Avaliacao in vivo de Fe na pele humana e de camundongos swins atraves da tecnica de fluorescencia de raios X

    Energy Technology Data Exchange (ETDEWEB)

    Estevam, Marcelo

    2005-07-01

    Recent technological improvements allow the method of in vivo XRF to supply useful sensibility for diagnostics or monitoring in biomedical applications. In cases of hereditary sanguine disorders as the {beta}-Thalassaemia or a genetic disorder like Haemochromatosis, there is a high concentration of elements as Fe, Zn and Cu in the skin and internal organs, due to the treatment of those abnormalities or due to the own dysfunction caused by the disease. The levels of Fe related to the patient bearers of the {beta}-Thalassaemia are determined, at the moment, measuring a protein in the sanguine current, called ferritin. The monitoring of the protein is ineffective in several situations, such as when the patient suffers any disturbance of health. Nowadays, the main forms of measuring the levels of those metals through hepatic storage are the biopsy of the liver, that is invasive and potentially dangerous, presenting a rate of mortality of 0,1%, and through magnetic susceptibilities that employs a quantum superconductor, which is highly expensive and there are only three main world medical centers with this equipment. This work investigates the use of a Si PIN-diode detector and a 238Pu source (13 and 17 keV; 13%; 95.2 mCi; 86y) for the measurement of Fe skin levels compatible with those associated to the disease {beta}-Thalassaemia. XRF spectra were analyzed using a set of AXIL-WinQXAS programs elaborated and disseminated by the IAEA. The determination coefficient of the calibration model (sensitivity curve) was 0.97. Measurements on skin phantoms containing concentrations of Fe in the range from 15 to 150 parts per million (ppm), indicate that we are able to detect Fe at levels of the order of 13 ppm, using monitoring periods of 50 seconds and skin entrance dose less than 10 mSv. The literature reports skin Fe levels from 15.0 to 60.0 ppm in normal persons and from 70 to 150 ppm in thalassaemic patients. So, the employed methodology allows the in vivo measurement of the skin Fe concentration in wanted levels. (author)

  10. Study of the parameters solution blow spinning technique in the obtaining of mullite nanofibers; Estudo de parametros da tecnica de fiacao por sopro em solucao na obtencao de nanofibras de mulita

    Energy Technology Data Exchange (ETDEWEB)

    Severo, L.L.; Farias, R.M.C.; Menezes, R.R.; Santos, M.A., E-mail: lucasleite_14.1@hotmail.com [Universidade Federal de Campina Grande (UFCG), PB (Brazil)

    2016-07-01

    The Solution Blow Spinning (SBS) technique which use aerodynamic forces and has a high production rate, was created for production of nanofiber with versatile way, such as electrospinning. Therefore, the objective is to analyze the process parameters in order to optimize the production of mullite nanofiber using the SBS technique to determine the influence of air pressure, the concentration of the polymer and ejection rate in the diameter of the fibers. For this, it was used PVC as polymer in spinning, tetrahydrofuran as the solvent, HCl as acidifying, aluminum nitrate nonahydrate and tetraethylorthosilicate as precursors of mullite. The nanofibers obtained were heat treated at 1100°C. From of XRD and SEM results, it was proved the achievement of mullite nanofiber, and STATISTICA 7 software revealed that only ejection rate and the concentration influence in the average diameters of the fibers. (author)

  11. Phosphorus kinetics in ovine fed with different phosphorus sources, using the isotopic dilution technique; Cinetica do fosforo em ovinos suplementados com diferentes fontes fosfatadas, atraves da tecnica de diluicao isotopica

    Energy Technology Data Exchange (ETDEWEB)

    Vitti, D M.S.S.; Abdalla, A L [Centro de Energia Nuclear na Agricultura (CENA), Piracicaba, SP (Brazil); Meirelles, C F [Sao Paulo Univ., Piracicaba, SP (Brazil). Escola Superior de Agricultura Luiz de Queiroz

    1992-06-01

    Phosphorus kinetics in fluids and tissues of sheep was studied. Sixteen castrated sheep were kept in metabolism cages, receiving a semipuried diet containing as phosphorus sources dicalcium phosphate (BIC), monoammonium phosphate (MAP), superphosphate (SPT) and Tapita phosphate (TAP) 200 {mu}Ci P-32 was intravenously injected in each sheep and blood and feces were collected for eight days. From the specific activities in feces and plasma the endogenous phosphorus and the absorption coefficient were calculated. plasma P-32 half-life was determined. Nine days after injection the animals were killed and liver, kidney and muscle and bone samples were collected. P-32 retention and specific activities in tissues were determined. Endogenous phosphorus and absorption coefficient values were 54.44 {+-} 15.31 mh/kg live weight and 0.60; 47.98 {+-} 12.44 and 0.56; 39.70 {+-} 7.29 and 0.49; 59.11 {+-} 17.12 and 0.58 respectively bor BIC, MAP, TAP and SPT. P-32 retention by tissues was 0.29 {+-} 0.09; 0.27 {+-} 0.06; 0.16 {+-} 0.04 and 0.08 {+-} 0.03 dose/g fresh matter, respectively for bone, liver, kidney and muscle. It was concluded that animals which received TAP showed differences in absorption, distribution and P-32 retention by fluids and tissues. Phosphorus availability was lower for this source. (author) 14 refs., 1 tab.

  12. Corrosion mapping in ducts using the automated ultrasonic technique C-Scan - correlation with results given by pig inspection; Mapeamento de corrosao em dutos atraves da tecnica ultrassonica C-Scan

    Energy Technology Data Exchange (ETDEWEB)

    Feres Filho, Pedro; Moura, Nestor Carlos de [Physical Acoustics South America (PASA), Sao Paulo, SP (Brazil)

    2005-07-01

    In-service inspection has received diverse contributions from technologies and documents with the objective of maximizing equipment availability and minimizing inadequate repairs. Amongst the available technologies, there are the automated ultrasound tests, in the B and C-scan versions. This paper describes an evaluation methodology based on the correlation between the test techniques of instrumented electromagnetic PIG and automated ultrasound, both applied with the purpose of detecting and mapping areas with corrosion in pipes for oil transport. The main objective of the application of the C-scan methodology, in this case, was the measuring and detailing of the corroded area, thus providing an adequate maintenance plan through the substitution or installation of a double gutter. The result demonstrates the correlation between the measurements taken by the PIG and the sizing of the regions done using the C-scan method, consisting of the length, width and thickness values in the points affected by the corrosion. (author)

  13. Analysis of the chemical elements behavior in leaves infected with fumagina employing X-ray fluorescence technique; Analise do comportamento de elementos quimicos em folhas infectadas com fumagina atraves da tecnica de fluorescencia de raios-X

    Energy Technology Data Exchange (ETDEWEB)

    Blonski, Maria Selia

    2002-02-01

    Fumagina is produced by the Capnodium fungi, a mushroom from Dothideales order, that lives associated with the yellow aphid (Monelliopsis pecanis), excreting a heavy load of a sugared substance that provides the sooty fungus development, covering, in some cases the totality, of leaves, fruits and branches surfaces. One of the big problems caused by this disease is the physic photosynthesis stuckness, reducing in 98% the active photosynthesis radiation and in 70% the net photosynthesis. This photosynthesis reduction affects the plants carbohydrate reservoirs, resulting in reduced and bad qualified crops. It was employed the Energy Dispersion X-Ray Fluorescence Technique (EDXRF) to study the fumagina disease. The measurements were realized with infected and healthy leaves of citric plants (orange and lemon trees), collected at the Farm School of the State University of Londrina, and also leaves of icsora plant from Piracicaba-SP. Through this technique it was observed a metabolic disorder related to Fe and Ca elements. By comparing the EDXRF spectra of the healthy plant leaves with the infected ones, it was verified that the concentration of Ca is higher than the concentration Fe in leaves of healthy plants, while for the leaves of plants infected with fumagina, it was observed a higher concentration of Fe. Employing EDXRF and the emission/transmission method for the matrix effect correction, samples of the citric plants were also analysed in pellet. The elements K, Ca, Ti, Mn , Fe, Cu and Zn were quantified. It was verified a higher Fe concentration in fumagina samples compared to the samples without fumagina. For all the elements of interest the minimum level of detection found was at the order of {mu}g g{sup -1}. (author)

  14. Techniques of artificial intelligence applied to the electric power expansion distribution system planning problem; Tecnicas de inteligencia artificial aplicadas ao problema de planejamento da expansao do sistema de distribuicao de energia eletrica

    Energy Technology Data Exchange (ETDEWEB)

    Froes, Salete Maria

    1996-07-01

    A tool named Constrained Decision Problem (CDP), which is based on Artificial Intelligence and a specific application to Distribution System Planning is described. The CDP allows multiple objective optimization that does not, necessarily, result in a single optimal solution. First, a literature review covers published works related to Artificial Intelligence applications to Electric Power Distribution Systems, emphasizing feeder restoration and reconfiguration. Some concepts related to Artificial Intelligence are described, with particular attention to Planning and to Constrained Decision Problems. Following, an Electric Power System planning model is addressed by using the CDP tool. Some case studies illustrate the Distribution Planning model, which are compared with standard optimization models. Concluding, some comments establishing the possibilities of CDP applications are followed by a view on future developments. (author)

  15. In vitro evaluation of the chemical and morphological changes of the enamel surface using different bleaching techniques; Avaliacao in vitro das alteracoes quimica e morfologica da superficie do esmalte utilizando diferentes tecnicas de clareamento dental

    Energy Technology Data Exchange (ETDEWEB)

    Mattos, Alessandra de Siervi

    2003-07-01

    'In vitro' evaluation through MEV and EDS of the morphological and chemical changes, respectively, of the bovine enamel, submitted to different bleaching techniques. For the MEV evaluation eighteen apical thirds were pigmented and divided into two parts. One half of each sample was the control and the other half was bleached according to the protocol of each test group (n= 6). Group I - home bleaching with a 10% carbamide peroxide; group II bleaching with 35% hydrogen peroxide and LED; group III - bleaching with 35% hydrogen peroxide with diode laser bleaching. The same procedure was done with the eighteen samples which were analyzed through EDS and which had their buccal surface grinded and polished before the bleaching procedure in order to obtain more precise values of the fraction of calcium and phosphorus. The results showed no morphological changes among the analyzed control halves and the bleached halves. There was not a statistical significant difference about Ca and P values, among the control halves and the bleached halves regarding the chemical components (p< 0,05). (author)

  16. Technical evaluation of biomass gasification technology integrated with combined cycle using bagasse as fuel; Avaliacao tecnica da tecnologia de gaseificacao de biomassa integrada a ciclos combinados utilizando bagaco como combustivel

    Energy Technology Data Exchange (ETDEWEB)

    Ortiz, Pablo Silva; Venturini, Osvaldo Jose; Lora, Electo Silva [Universidade Federal de Itajuba (NEST/UNIFEI), MG (Brazil). Nucleo de Excelencia em Geracao Termeletrica e Distribuida], email: pablo.silvaortiz@gmail.com; Campo, Andres Perez [Universidade Automona de Bucaramanga (UNAB) (Colombia). Fac. de Engenharia Fisico- Mecanica, Engenharia em Energia

    2010-07-01

    Biomass Integrated Gasification Combined Cycle (BIGCC) was identified as an advanced technology with potential to be competitive for electricity generation. The BIGCC technology uses biomass and the sub products of some industrial sectors processing, like sugar cane, as feedstock. The current Brazilian energy matrix is mainly based on renewable generation sources, making it important to assess these gasification technologies in the production of sugar, ethanol and electricity. In this work, a technical evaluation of the technologies incorporated in BIGCC power plants is done: the gasification process and the combined cycle power plant. On the other hand, the generated costs of these systems are analyzed, and the potential for implementation in Brazil plants from sugar cane bagasse is studied, in which a 10% increase in efficiency is obtained. (author)

  17. Study of immobilization of radioactive wastes in asphaltic matrices and elastomeric residues by using microwave technique; Estudo da imobilizacao de rejeitos radioativos em matrizes asfalticas e residuos elastomericos utilizando a tecnica de microondas

    Energy Technology Data Exchange (ETDEWEB)

    Caratin, Reinaldo Leonel

    2007-07-01

    In the present work, the technique of microwave heating was used to study the immobilization of low and intermediate activity level radioactive waste, such as spent ion exchange resin used to remove undesirable ions of primary circuits of refrigeration in water refrigerated nuclear reactors, and those used in chemical and radionuclide separation columns in the quality control of radioisotopes. Bitumen matrices reinforced with some kinds of rubber (Neoprene{sup R}, silicon and ethylene-vinyl-acetate), from production leftovers or scraps, were used for incorporation of radioactive waste. The samples irradiation was made in a home microwave oven that operates at a frequency of 2.450 MHZ with 1.000 W power. The samples were characterized by developing assays on penetration, leaching resistance, softening, flash and combustion points, thermogravimetry and optical microscopy. The obtained results were compatible with the pattern of matrices components, which shows that technique is a very useful alternative to conventional immobilization methods and to those kinds of radioactive waste. (author)

  18. Economical and technical feasibility of the conventional energy source substitution by biogas in rural settlement of Sao Paulo; Viabilidade tecnica e economica da substituicao de fontes convencionais de energia por biogas em assentamento rural do Estado de Sao Paulo

    Energy Technology Data Exchange (ETDEWEB)

    Esperancini, Maura S.T.; Bueno, Osmar de C.; Pimentel, Andrea E.B.; Simon, Elias J. [UNESP, Botucatu, SP (Brazil). Dept. de Gestao e Tecnologia Agroindustrial]. E-mail: maura@fca.unesp.br; Colen, Fernando [Faculdades Sudoeste Paulista, Avare, SP (Brazil)

    2007-01-15

    The aim of this work was to evaluate the economic feasibility of two biodigestion systems using animal excrements in a rural settlement, in Itabera - SP, Brazil, in the year of 2005. One of them was constructed to supply biogas for five residences. The other one was constructed to supply biogas for production activities. The generated benefits related to the supply of electric and thermal energy were evaluated, using biogas for five residences and for production activities, in comparison to the annual costs of the biodigestion system construction and operation. The results showed economic feasibility of the biogas production in both cases. It was generated economic benefits of US$ 1,766.84 and US$ 4,338.54 per year for the residential biodigestion system and production activities biodigestion system, respectively, as well as US$ 706.20 per year for biofertilizer production. The costs were estimated in US$ 582.18 per year in each biodigestion system. The pay-back was evaluated in 2.5 years for the residential case and 11 months for the production case, respectively. These results can be used to formulate public policies directed to biomass exploitation to produce low cost energy focused on familiar agriculture. (author)

  19. TPR system: a powerful technique to monitor carbon nanotube formation during chemical vapour deposition; Sistema RTP: uma tecnica poderosa para o monitoramento da formacao de nanotubos de carbono durante o processo por deposicao de vapor quimico

    Energy Technology Data Exchange (ETDEWEB)

    Tristao, Juliana Cristina; Moura, Flavia Cristina Camilo; Lago, Rochel Montero, E-mail: rochel@ufmg.b [Universidade Federal de Minas Gerais (DQ/UFMG), Belo Horizonte, MG (Brazil). Dept. de Quimica; Sapag, Karim [Universidade Nacional de San Luis (Argentina). Lab. de Ciencias de Superficies y Medios Porosos

    2010-07-01

    In this work, a TPR (Temperature Programmed Reduction) system is used as a powerful tool to monitor carbon nanotubes production during CVD (Chemical Vapour Deposition), The experiments were carried out using catalyst precursors based on Fe-Mo supported on Al{sub 2}O{sub 3} and methane as carbon source. As methane reacts on the Fe metal surface, carbon is deposited and H2 is produced. TPR is very sensitive to the presence of H2 and affords information on the temperature where catalyst is active to form different forms of carbon, the reaction kinetics, the catalyst deactivation and carbon yields. (author)

  20. Carbon thin films deposited by the magnetron sputtering technique using cobalt, copper and nickel as buffer-layers; Filmes finos de carbono depositados por meio da tecnica de magnetron sputtering usando cobalto, cobre e niquel como buffer-layers

    Energy Technology Data Exchange (ETDEWEB)

    Costa e Silva, Danilo Lopes

    2015-11-01

    In this work, carbon thin films were produced by the magnetron sputtering technique using single crystal substrates of alumina c-plane (0001) and Si (111) and Si (100) substrates, employing Co, Ni and Cu as intermediate films (buffer-layers). The depositions were conducted in three stages, first with cobalt buffer-layers where only after the production of a large number of samples, the depositions using cooper buffer-layers were carried out on Si substrates. Then, depositions were performed with nickel buffer layers using single-crystal alumina substrates. The crystallinity of the carbon films was evaluated by using the technique of Raman spectroscopy and, then, by X-ray diffraction (XRD). The morphological characterization of the films was performed by scanning electron microscopy (SEM and FEG-SEM) and high-resolution transmission electron microscopy (HRTEM). The XRD peaks related to the carbon films were observed only in the results of the samples with cobalt and nickel buffer-layers. The Raman spectroscopy showed that the carbon films with the best degree of crystallinity were the ones produced with Si (111) substrates, for the Cu buffers, and sapphire substrates for the Ni and Co buffers, where the latter resulted in a sample with the best crystallinity of all the ones produced in this work. It was observed that the cobalt has low recovering over the alumina substrates when compared to the nickel. Sorption tests of Ce ions by the carbon films were conducted in two samples and it was observed that the sorption did not occur probably because of the low crystallinity of the carbon films in both samples. (author)

  1. Trauma da Veia Porta

    Directory of Open Access Journals (Sweden)

    Gustavo Pereira Fraga

    Full Text Available OBJETIVO: O trauma da veia porta é raro e freqüentemente fatal por causa de exsanguinação e alta incidência de lesões de estruturas adjacentes. Devido às pecualiaridades desta lesão e diferentes condutas propostas na literatura, o objetivo dos autores é relatar a experiência neste tipo de lesão. MÉTODO: Estudo retrospectivo, de janeiro de 1994 e dezembro de 2001, de 1370 pacientes submetidos à laparotomia devido trauma abdominal. Entre esses, 15 pacientes apresentavam lesão da veia porta. As lesões foram classificadas conforme a sua extensão e localização. RESULTADOS: O mecanismo de trauma predominante foi o penetrante. O diagnóstico da lesão foi realizado no intraoperatório. Os procedimentos executados foram: sutura, anastomose término-terminal e ligadura da veia porta. A mortalidade foi de 53,3%. CONCLUSÃO: A lesão da veia porta possui alta taxa de mortalidade e o atendimento adequado está diretamente relacionado à sobrevida.

  2. Phytoextraction. A new pilot-plant project for the soil decontamination; Fitodecontaminazione. Un sistema pilota per la fito-decontaminazione di suoli inquinati da piombo

    Energy Technology Data Exchange (ETDEWEB)

    Bregante, M.; Paganetto, A.; Magistrelli, P.; Martella, L.; Gambale, F. [Consiglio Nazionale delle Ricerche, Istituto di Cibernetica e Biofisica, Genoa (Italy); Sacchi, G.A.; Rivetta, A.; Cocucci, R. [Milan Univ., Milan (Italy). Dipt. di Produzione Vegetale

    2001-12-01

    The environmental pollution is continuously increasing owing to anthropic activity. High concentrations of heavy metals may have drastic consequences on human health, particularly on children development. Conventional approaches have high economical and environmental costs that do not allow soil decontamination unless sites are particularly valuable. Phytoextraction uses plants producing biomass to transfer metals from the soil to the aerial parts of the plants at the expenses of solar energy. This work illustrates the activity performed within a Life-Environment european project in order to verify whether phytoremediation can be transferred from the laboratory scale to the field scale. [Italian] L'inquinamento del suolo dovuto all'accumulo di metalli come conseguenza delle attivita' umane sta continuamente e drammaticamente aumentando. Principali cause di contaminazione sono l'accumulo di rifiuti urbani, l'utilizzo di fertilizzanti, il traffico motorizzato, gli inceneritori, le centrali termoelettriche, le emissiioni industriali nocive, lo sfruttamento e dismissione di miniere. La decontaminazione di suoli inquinati da metalli e' un problema estremamente difficile da trattare. La bonifica di suoli inquinati da metalli mediante l'utilizzo di piante metallofite e/o agronomiche (fitoestrazione) emerge quindi come una tecnica estremamente interessante. Viene percio' illustrato il progetto PhyLeS (Phytoextraction of Lead from Soil), un progetto pilota finanziato dal programma Europeo Life/Ambiente (DG XI), che si propone di verficare i potenziali vantaggi e la trasferibilita' della metodica di fitoestrazione assistita dalla scala di laboratorio a quella di campo.

  3. Da Vinci Linjen

    DEFF Research Database (Denmark)

    Nissen, Poul

    Afsluttende evalueringsrapport fra følgeforskningen gennem tre år i forbindelse med dety pædagogiske arbejde på Blåbjerggårdskolens Da Vinci Linje for skolemotiverede og underpræsterende elever på 7. til 9. klassetrin.......Afsluttende evalueringsrapport fra følgeforskningen gennem tre år i forbindelse med dety pædagogiske arbejde på Blåbjerggårdskolens Da Vinci Linje for skolemotiverede og underpræsterende elever på 7. til 9. klassetrin....

  4. Profilaxia da peste

    Directory of Open Access Journals (Sweden)

    Renato dos Santos Araújo

    1967-12-01

    Full Text Available O autor parte da premissa de que a profilaxia da doença infecciosa decorre do encadeamento epidemiológico: fonte de infecção-veículo transmissor - receptivel, para explicar a da peste, baseada no mesmo princípio. Depois de citar os 4 principais complexos epidemiológicos da peste e afirmar que tôda a profilaxia da doença consiste em atingir os dois primeiros elos dessas cadeias e proteger o último, passa a classificar os vários métodos profiláticos empregados em 2 grandes grupos: o das medidas destrutivas ou provisórias e o das medidas supressivas ou definitivas. Entre as primeiras arrola a desratização e a despulização, às quais acrescenta o tratamento e isolamento do doente e do portaãor, e entre as segundas inclui a anti-ratização e a imunização. A seguir, passa a explicar em que consistem essas várias medidas profiláticas e quais os agentes de que se tem lançado mão para executá-las, expendendo ao curso dessa exposição o conceito que formula a respeito de cada uma delas, à guisa de apreciação do seu valor relativo. Enaltece sobretudo as medidas supressivas ou definitivas, às quais empresta a maior significação na luta antipestosa, chamando a atenção, em especial, para a necessidade de estudos imunológicos para aperfeiçoamento do poder imunitário das vacinas de germes vivos avirulentos, que considera um grande recurso para a profilaxia da doença, sobretudo para a proteção do rurícola, cujo labor e modo de vida o expõem inevitavelmente a se infectar, por ocasião da ocorrência de epizootias de origem silvestre. Concluída essa primeira parte, passa a fazer o histórico de como se desenvolveu a campanha contra a peste, no Brasil, desde a época da sua invasão em 1899 pelo pôrto de Santos até os nossos dias. Nesse histórico, detem-se um pouco para expôr a atuação do extinto Serviço Nacional de Peste, o qual, criado em 1941, após a reorganização do Departamento Nacional de Saúde, passou

  5. da Zehirlenmeleri

    Directory of Open Access Journals (Sweden)

    Necati Akbulut

    2015-02-01

    Full Text Available Gıda Teknolojisinin gelişmesi ile, gıda maddesinin tüketici için daha alımlı olmasını sağlamak, kısa zamanda bozulmasını engellemek ve pazara yeni çeşitler sunmak için bazı kimyasal maddeler kullanılmaya başlanılmıştır. Bunun yanında tarımda kullanılan kimyasal maddeler artmış, ambalaj sanayi gelişmiş, bu dada maddelerine bulaşan maddelerin türlerini arttırmıştır. Ayrıca gıda maddelerine belirli amacı olmadan katılan maddelerde vardır. Diğer taraftan tüketiciyi aldatmak, hile yapmak, çok kar sağlamak veya kötü kaliteyi gizlemek amacı ile de kullanılan maddeler bulunmaktadır. İster teknik zorunluk, ister hile amacıyla olsun bu tür yabancı maddeler öncelikle insan sağlığını ilgilendirmektedir. Bazı maddelerin vücuda alınması sakıncasız olduğu halde, bazıları sakıncalıdır. Sakıncasız olanlarında belirli bir sınırın üzerinde uzun süre alınmaları zararlı olabilmektedir. Bu toplum sağlığı sorunu birçok ülkeyi gıda sanayiinde kullanılan kimyasal maddelerin hoşgörü sınırlarının hesaplanması noktasına götürmüştür.

  6. «Ad faciendum et distrenpandum colores». Giorgio da Firenze e la pittura murale a olio in Piemonte nel Trecento / «Ad faciendum et distrenpandum colores». Giorgio da Firenze and the oil mural painting in Piemonte in the 14th Century

    Directory of Open Access Journals (Sweden)

    Bernardo Oderzo Gabrieli

    2013-11-01

    Full Text Available Il periferico Piemonte ospita dalla fine del Settecento un erudito dibattito su di una serie di documenti che testimoniano l’uso dell’olio in pittura murale da parte di un pittore toscano, Giorgio degli Agli, artista di corte dei Savoia tra il 1314 ed il 1348. L’analisi dei ricettari e dei trattati di tecnica artistica medievale rivela quanto fosse nota la possibilità di una pittura a olio o totalmente a tempera su muro, dalla Schedula di Teophilus fino al Manoscritto di Strasburgo. I documenti d’archivio inglesi trecenteschi confermano le quantità e i prezzi pagati nelle attestazioni piemontesi, sia per i pigmenti che per i leganti, dove uova, colla e olio sono ad faciendum et distrenpandum colores. Recenti campagne analitiche infine hanno permesso di riconoscere la presenza di leganti di natura organica tra i diversi strati della pellicola pittorica, rivelando una tradizione tecnica tutta oltralpina (a partire dal cantiere assisiate; fra questi, Jean de Grandson, collaboratore e allievo di Giorgio, nel ciclo della Camera Domini del Castello di Chillon (1342-1343 dipinge su muro proprio come se si trattasse di una tavola.   To the late eighteenth century, the peripheral Piedmont hosts a scholarly debate on a series of documents which demonstrate the use of oil in mural painting by a Tuscan painter, Giorgio degli Agli, court artist of the Savoy between 1314 and 1348. The analysis of medieval technique treaties reveals how was known the use of oil or tempera on wall painting, from the Schedule of Theophilus to the Manuscript in Strasbourg. The English fourteenth archive documents confirm the quantities and prices paid claims in Piedmont, both for the pigments to the medium, where eggs, glue and oil are used at faciendum et distrenpandum colores. Recent analytical campaigns finally made it possible to recognize the presence of organic media between the different film layers of paintings, revealing a whole transalpine technical tradition

  7. The Revised Guiding Principles and General Operating Rules to Govern the Provision of Technical Assistance by the Agency. Latest Status (Spanish Edition); Texto Revisado de Los Principios Rectores n Normas Generales de Ejecucion Para la Prestacion de Asistencia Tecnica por el Organismo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1979-03-15

    The Revised Guiding Principles and General Operating Rules to Govern the Provision of Technical Assistance by the Agency were approved by the Board of Governors on 21 February 1979. The test is reproduced herein for the information of all Members. The provisions established by the Board of Governors on 24 September 1977 for the application of safeguards in relation to the granting of technical assistance are also reproduced in the Annex to the Revised Guiding Principles and General Operating Rules. [Spanish] El 21 de febrero de 1979 la Junta de Gobernadores aprobo el texto revisado de los Principios rectores y normas generales de ejecucion para la prestacion de asistencia tecnica por el Organismo. Para informacion de todos los Estados Miembros, en el presente documento se transcribe dicho texto. En el Anexo del texto revisado de los Principios rectores y normas generales de ejecucion se transcriben tambien las disposiciones prescritas por la Junta de Gobernadores el 24 de septiembre de 1977 acerca de la aplicacion de salvaguardias en relacion con la asistencia tecnica.

  8. A REFORMA DA IGREJA

    Directory of Open Access Journals (Sweden)

    Vítor Galdino Feller

    2014-01-01

    Full Text Available O pontificado do papa Francisco trouxe à tona o tema da reforma da Igreja. Retoma-se essa causa que acompanha a história da Igreja desde os seus primórdios e que interessa a todos os membros do povo santo de Deus. O texto divide-se em quatro partes. Primeiro, faz-se um apanhado histórico dos anseios de reforma da Igreja, mostrando que, muitas vezes em instâncias subterrâneas, sempre houve o desejo e também ações concretas de renovação. Em seguida, apresenta-se como razão para a reforma da Igreja o anúncio e a realização do Reino de Deus, pelo qual é preciso que a Igreja se volte à concretude humana e histórica de Jesus de Nazaré, pela superação do apego ao poder e às estruturas religiosas. Num terceiro momento, trata-se do critério pelo qual se mede a realização e a veracidade da reforma da Igreja: a santidade de cada fiel e do povo cristão no meio do mundo. Por fim, conclui-se que o caminho para a reforma da Igreja está na escuta dos clamores do Espírito Santo, que fala na própria Igreja e no mundo através do sensus fidei dos fiéis, das Igrejas particulares, dos pobres, das mulheres e das realidades terrestres. ABSTRACT: The pontificate of Pope Francis brought to the surface the theme of reform of the Church. This essay takes up this cause that accompanies the history of the Church from its beginnings and concerns all the members of the holy people of God. The text is divided into four parts. First, it gives a historical summary of the yearnings for reform of the Church, showing that, in many instances subterranean, there has always been the desire and also the concrete actions of renewal. Following from this, the essay presents as the reason for the reform of the Church the proclamation and the realization of the Kingdom of God, whereby it is necessary that the Church return to the concrete human and historical Jesus of Nazareth, in order to overcome the addiction to power and to religious structures. In the

  9. A cultura da internet

    OpenAIRE

    Cádima, Francisco Rui

    2017-01-01

    O novo ambiente digital é cada vez mais perturbante na sua dimensão ‘visível’ e está, em boa parte, incontrolável nessa área ainda algo desconhecida da Internet negra, conhecida por deep web ou dark net, convoca-nos para uma reflexão profunda de largo espectro, que não se pode vincular apenas às questões de mercado, tecnológicas e de redes, mas que nos vem alertar sobretudo para a ordem do político e da cidadania, do ‘desconhecido’ e do conhecimento e, enfim, do acesso à rede, quer no que is...

  10. [da Vinci surgical system].

    Science.gov (United States)

    Watanabe, Gou; Ishikawa, Norihiro

    2014-07-01

    The da Vinci surgical system was developed by Intuitive Surgical Inc. in the United States as an endoscopic surgical device to assist remote control surgeries. In 1998, the Da Vinci system was first used for cardiothoracic procedures. Currently a combination of robot-assisted internal thoracic artery harvest together with coronary artery bypass grafting (CABG) through a mini-incision (ThoraCAB) or totally endoscopic procedures including anastomoses under robotic assistance (TECAB) are being conducted for the treatment of coronary artery diseases. With the recent advances in catheter interventions, hybrid procedures combining catheter intervention with ThoraCAB or TECAB are anticipated in the future.On the other hand, with the decrease in number of coronary artery bypass surgeries, the share of valvular surgeries is expected to increase in the future. Among them, mitral valvuloplasty for mitral regurgitation is anticipated to be conducted mainly by low-invasive procedures, represented by minimally invasive cardiac surgery( MICS) and robot-assisted surgery. Apart from the intrinsic good surgical view, robotic-assisted systems offer additional advantages of the availability of an amplified view and the easy to observe the mitral valve in the physiological position. Thus, robotic surgical surgeries that make complicated procedures easier are expected to accomplish further developments in the future. Furthermore, while the number of surgeries for atrial septal defects has decreased dramatically following the widespread use of Amplatzer septal occluder, robotic surgery may become a good indication for cases in which the Amplatzer device is not indicated. In Japan, clinical trial of the da Vinci robotic system for heart surgeries has been completed. Statutory approval of the da Vinci system for mitral regurgitation and atrial septal defects is anticipated in the next few years.

  11. A utilização da teoria da aprendizagem significativa no ensino da Enfermagem

    OpenAIRE

    Alana Tamar Oliveira de Sousa; Nilton Soares Formiga; Simone Helena dos Santos Oliveira; Marta Miriam Lopes Costa; Maria Júlia Guimarães Oliveira Soares

    2015-01-01

    RESUMO Objetivo: sintetizar a produção científica acerca da Teoria da Aprendizagem Significativa no processo de ensino-aprendizagem em Enfermagem. Método: revisão integrativa realizada nas bases de dados MEDLINE, LILACS, SciELO, BDENF e CINAHL, com artigos que abordaram a temática ou aspectos da teoria da aprendizagem significativa de David Ausubel. Fizeram parte da amostra dez artigos, sendo seis escritos no idioma português e quatro no inglês, publicados de 1998 a 2013. Resultados: cinco...

  12. Os (descaminhos da identidade

    Directory of Open Access Journals (Sweden)

    Oliveira Roberto Cardoso de

    2000-01-01

    Full Text Available A conferência procurou apresentar uma interpretação das vicissitudes da identidade étnica e/ou nacional quando observada em situações de ambigüidade. É quando o processo identitário expressa crises reais ou virtuais, como as que têm lugar entre imigrantes latino-americanos nos Estados Unidos, entre povos de diferentes regiões da Espanha emigrados para Barcelona, entre catalães espanhóis, franceses e andorranos residentes em Andorra, e entre povos indígenas em regiões de fronteira do Brasil com países vizinhos. O exame do processo identitário que tem lugar em diferentes latitudes, nas Américas e na Europa, sugere que os fenômenos socioculturais de etnicidade e de nacionalidade possuem em comum características tais como a busca de reconhecimento da pessoa moral, o respeito à diferença e, como corolário ético, a elevação do que se pode definir como "taxa de consideração".

  13. Hepatotoxicidade da cianotoxina microcistina

    Directory of Open Access Journals (Sweden)

    Andréa de Castro Leal

    2004-01-01

    Full Text Available Constitui interesse emergente em saúde pública avaliar a possibilidade de intoxicação humana por biotoxinas de algas cianofíceas, principalmente as hepatotoxinas do grupo das microcistinas. A microcistina, um heptapeptídeo monocíclico, é produzida principalmente pela cianobactéria Microcistis aeruginosa. São caracterizadas por alguns aminoácidos variáveis, dois deles com uma estrutura não usual que possuem importante papel na hepatotoxidade da microcistina. Apesar do acometimento humano atribuído as microcistinas incluírem gastroenterite, reações alérgicas ou irritativas, neurotoxicidade, o principal alvo da toxina é o fígado. Nos hepatócitos as microcistinas são carreadas pelo sistema transportador do ácido biliar, inibindo a atividade da proteína fosfatase no citoplasma. A inibição leva a mudanças morfológicas na membrana plasmática pela hiperfosforilação de citoqueratinas, e à atividade de promoção tumoral pelas proteínas hiperfosforiladas. Os métodos de detecção e quantificação de microcistinas no ambiente incluem a cromatografia líquida, o bioensaio em camundongos e os testes imunoenzimáticos. O último vem ganhando destaque pela praticidade e alta sensibilidade.

  14. Nondestructive analysis of the natural uranium mass through the measurement of delayed neutrons using the technique of pulsed neutron source; Analise nao destrutiva da massa de uranio natural atraves da medida de neutrons atrasados com o uso da tecnica de fonte pulsada de neutrons rapidos

    Energy Technology Data Exchange (ETDEWEB)

    Coelho, Paulo Rogerio Pinto

    1979-07-01

    This work presents results of non destructive mass analysis of natural uranium by the pulsed source technique. Fissioning is produced by irradiating the test sample with pulses of 14 MeV neutrons and the uranium mass is calculated on a relative scale from the measured emission of delayed neutrons. Individual measurements were normalised against the integral counts of a scintillation detector measuring the 14 MeV neutron intensity. Delayed neutrons were measured using a specially constructed slab detector operated in anti synchronism with the fast pulsed source. The 14 MeV neutrons were produced via the T(d,n) {sup 4}He reaction using a 400 kV Van de Graaff accelerated operated at 200 kV in the pulsed source mode. Three types of sample were analysed, namely: discs of metallic uranium, pellets of sintered uranium oxide and plates of uranium aluminium alloy sandwiched between aluminium. These plates simulated those of Material Testing Reactor fuel elements. Results of measurements were reproducible to within an overall error in the range 1.6 to 3.9%; the specific error depending on the shape, size and mass of the sample. (author)

  15. Study on the technical and economical viability in the using of the spilled turbinable energy from the Itaipu Hydroelectric Power Plant for the ammonia synthesis of the nitrogen fertilizers; Estudo da viabilidade tecnica e economica do aproveitamento da energia vertida turbinavel da usina hidreletrica de Itaipu para sintese de amonia para fertilizantes nitrogenados

    Energy Technology Data Exchange (ETDEWEB)

    Espinola, Michel Osvaldo Galeano [Universidade Nacional de Assuncao (Paraguay). Faculdade de Ciencias Quimicas]. E-mail: michelosvaldo@qui.una.py

    2008-07-01

    In many hydroelectric power plants, when the inflows are greater than the demand for energy, a portion of the water that could be used to generate energy is diverted to the spillway and literally wasted. This energy, designated as 'Spilled Turbinable Energy', could be used advantageously to generate other products or an energy vector that could be stored for later use, since in these occasions the dam is full. The present work studies the feasibility of using the spilled turbinable energy of the Itaipu Hydroelectric Power Plant to produce electrolytic hydrogen that, together with the nitrogen from air, is an important feedstock for the ammonia synthesis, used to produce nitrogen fertilizers. The minimum production cost of electrolytic hydrogen was estimated in US$ 0,246/m3 or US$ 2,750/kg, for a plant with capacity of 55 mil m3/h, which correspond to 247,5 MW of electrical power deriving from 82% of spilled turbinable energy and 18% of guaranteed energy. Next to that hydrogen plant it is possible to install an ammonia plant of approximately 500 t/day, operating 350 days/year, with a production cost of approximately US$ 562,81/t. This capacity is enough to supply 38,5% of the ammonia demand estimated for the region focused in the project, 1.300 t/day. Nowadays, ammonia is commercialized in the Brazilian market by approximately US$ 525,60/t. For that reason, it can be concluded that ammonia production through the association of spilled turbinable and guaranteed energy next to Itaipu Hydroelectric Power Plant is not economically feasible by the moment, mainly due to the high cost of imported electrolysers. Nevertheless, with the installation of an ammonia plant based on water electrolysis next to Itaipu Hydroelectric Power Plant, it could be avoided an annual carbon emission of 234 thousand tons, even considering methane and carbon dioxide emissions of the Itaipu's reservoir. If such project were approved by the Clean Development Mechanism, that environmental impact decrease would represent an amount of E (euro) 3.8 million, approximately US$ 5.5 million or R$ 9.9 million. Even with that revenue, the project would not be economically feasible yet, mainly because of the low prices of natural gas used as feedstock to produce ammonia nowadays. (author)

  16. Hepatotoxicidade da cianotoxina microcistina

    OpenAIRE

    Leal,Andréa de Castro; Soares,Manoel do Carmo Pereira

    2004-01-01

    Constitui interesse emergente em saúde pública avaliar a possibilidade de intoxicação humana por biotoxinas de algas cianofíceas, principalmente as hepatotoxinas do grupo das microcistinas. A microcistina, um heptapeptídeo monocíclico, é produzida principalmente pela cianobactéria Microcistis aeruginosa. São caracterizadas por alguns aminoácidos variáveis, dois deles com uma estrutura não usual que possuem importante papel na hepatotoxidade da microcistina. Apesar do acometimento humano atrib...

  17. Aspectos moleculares da anemia falciforme

    Directory of Open Access Journals (Sweden)

    Galiza Neto Gentil Claudino de

    2003-01-01

    Full Text Available No presente artigo abordaram-se vários aspectos relacionados à natureza molecular da anemia falciforme, desordem hematológica de caráter hereditário que acomete expressivo número de indivíduos em várias regiões do mundo. As pesquisas realizadas em torno desta patologia da hemácia, ao longo de quase um século, a partir de 1910, cooperaram para a criação de um novo e importante segmento da ciência, denominado biologia molecular. A descoberta dos polimorfismos da mutação (GAT->GTG no gene que codifica a cadeia beta da hemoglobina, originando diferentes haplótipos da doença, permitiu um melhor e mais amplo conhecimento em torno da heterogeneidade clínica nos pacientes falcêmicos. Analisando a hemoglobina na sua estrutura normal e mutante, sua produção e evolução, pode-se ter um entendimento mais completo da fisiopatologia desta doença e da sua complexidade clínica.

  18. Application of the probe Horiba U-23 in the analysis of physical-chemical parameters of groundwater influences on the Osamu Utsumi uranium mine in Caldas-MG; Aplicacao da sonda Horiba U-23 na analise de parametros fisico-quimicos das aguas subterraneas sobre influencia da mina de uranio Osamu Utsumi em Caldas-MG

    Energy Technology Data Exchange (ETDEWEB)

    Moreira, Flavio H.S., E-mail: flaviohsmoreira2@gmail.com [Universidade Federal de Alfenas (UNIFAL), Pocos de Caldas, MG (Brazil); Alberti, Heber L.C.; Silva, Nivaldo C., E-mail: heber@cnen.gov.br, E-mail: ncsilva@cnen.gov.br [Comissao Nacional de Energia Nuclear (LAPOC/CNEN-MG), Pocos de Caldas, MG (Brazil). Laboratorio de Pocos de Caldas; Fleming, Peter Marshall, E-mail: pmf@cnen.gov.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, BH (Brazil)

    2013-07-01

    This study presents data on the analysis of physical-chemical parameters of groundwater in the uranium mine Osamu Utsumi, belonging to the Industrias Nucleares do Brasil - INB, in the municipality of Caldas. This work is part of the team responsible for the evaluation of Plano de Recuperacao de Areas Degradadas (PRAD), team consists of researchers from Laboratorio de Pocos de Caldas - LAPOC and of the Centro de Desenvolvimento Tecnologico Nuclear - CDTN, units of the Comissao Nacional de Energia Nuclear - CNEN. Sampling was carried out in eleven wells in the 'bota-fora 4' area and digs mine. Analyses of groundwater quality were performed using the multiparameter probe Horiba U23, recent acquisition of LAPOC. The results characterize the groundwater of ten wells monitored as acidic and with a high electrical conductivity, due to the impacts caused by drainage Mining Acid (DAM)

  19. Determination of strontium isotopic composition in natural waters: examples of application in subsurface waters of the coastal zone of Bragantina region, Para, BR; Determinacao da composicao isotopica de estroncio em aguas naturais: exemplos de sua aplicacao em aguas subsuperficiais da zona costeira na regiao Bragantina-PA

    Energy Technology Data Exchange (ETDEWEB)

    Bordalo, Adriana Oliveira; Moura, Candido Augusto Veloso; Scheller, Thomas [Universidade Federal do Para (UFPA), Belem, PA (Brazil). Centro de Geociencias]. E-mail: adriana@ufpa.br

    2007-07-15

    Analytical procedures used for determining the concentrations and isotope composition of strontium in subsurface waters, by mass spectrometry, are described. Sampling was performed in coastal plateaus, salt marsh and mangrove environments in the coastal region of Para. Coastal plateau waters have {delta}{sup 87}Sr between 1.51 and 6.26 per mille and Sr concentration bellow 58 ppb. Salt marsh waters show {delta}{sup 87}Sr between 0.55 and 0.90 per mille and Sr concentration between 93 and 114 ppm, while mangrove waters have {delta}{sup 87}Sr per mille around zero and Sr concentration above 15 ppm. Differences in the {sup 87}Sr/{sup 86}Sr ratio in these subsurface waters are detected, as well as seasonal variations in the coastal plateau waters. (author)

  20. A study on copper and zinc effects in the growth of Aechmea blanchetiana (Baker) L.B. Smith seedlings cultivated in vitro. Application of neutron activation analysis; Estudo sobre os efeitos do cobre e zinco no crescimento da plantula de Aechmea blanchetiana (Baker) L.B. Smith cultivada in vitro. Aplicacao da analise por ativacao com neutrons

    Energy Technology Data Exchange (ETDEWEB)

    Zampieri, Maria Cristina Tessari

    2010-07-01

    Metals are components of the biosphere, occurring naturally in soil and plants, but as a result of human actions, their levels have been greatly increased, depending on the region. Copper (Cu) and zinc (Zn) are essential for the growth and development of plants, however if in excess become toxic. The aim of this study was to evaluate the potential of plants to absorb Cu and Zn and what effects they cause in seedlings cultivated in vitro. The results of this study may contribute primarily in agricultural and environmental research. The plant investigated was the Aechmea blanchetiana species of the Bromeliaceae family. It is a terrestrial or epiphytic species used as an ornamental plant. The cultivation of seedlings for this study and their exposure to different concentrations of Cu and Zn were performed at the Institute of Botany (IBt) of Sao Paulo. After seed germination, the seedlings were transferred for growth in a culture media containing different concentrations of Cu or Zn. After this period of in vitro cultivation, the seedlings were analyzed for morphometry, anatomy and by neutron activation analysis. Quality control of the results from neutron activation analysis was carried out by the analysis of certified reference materials. The data obtained showed good precision and accuracy for several elements determined. The highest concentrations of Cu used in the exposure were those that caused major structural changes in morphometric and anatomical parameters, however for the Zn no significant differences were verified for most parameters. The A. blanchetiana proved to be a bioaccumulator species of Zn, absorbing high levels of this element in the aerial parts and roots. (author)

  1. In vitro evaluation of the morphologic changes on the root dentine irradiated by CO{sub 2} laser associated or not to calcium hydroxide application; Avaliacao in vitro das alteracoes morfologicas da superficie da dentina radicular irradiada pelo laser de CO{sub 2} associado ou nao a aplicacao de hidroxido de calcio

    Energy Technology Data Exchange (ETDEWEB)

    Romano, Ana Cristina Cury Camargo

    2003-07-01

    This in vitro study has evaluated the structural changes on the root dentine irradiated by a CO{sub 2} laser associated or not to calcium hydroxide application, from the irradiated surface analysis by means of Scanning Electronic Microscopy (SEM). The purpose of this evaluation has been the study of an alternative method for the treatment of dentine hypersensitivity. Fourteen human teeth were utilized, third molars, divided into 7 groups. Group I (control group) to which no treatment was applied; Groups II, III and IV were given an application of Ca (OH){sub 2} paste followed by C0{sub 2} laser irradiation, lasting 5 seconds each with intervals of 10 seconds between each application, with continuous emission, power of 0.5 W (Group II), 1.0 W (Group III), and 1.5 W (Group IV); Groups V, VI, and VII were given laser irradiations without the Ca (OH){sub 2} paste following the same parameters applied to groups II, III, and IV respectively. Morphologic changes suggesting to fusion and re-solidification have been observed, as well as the presence of material obstructing the whole analyzed surface on groups II, III, and IV (laser + Ca (OH){sub 2}). As for groups V, VI, and VII, it has been observed fusion, re-solidification, and cracks, and these results being statistically significant when compared the '(Ca (OH){sub 2})' groups to the laser groups. No statistically significant differences were observed regarding the different powers applied in the groups that used the same treatment. Despite this result, it can be stated that powers above 1.0 W (DP = 125,38 W/cm{sup 2}) are unfavorable due to the undesirable morphologic alterations and aesthetic compromising. (author)

  2. Fabrication and study of stability of Ca{sub 2}AlWO{sub 5,5} ceramic in crude petroleum for applications in petroleum industry; Fabricacao e estudo da estabilidade em petroleo cru da ceramica Ca{sub 2}AlWO{sub 5,5} para aplicacao em industria petrolifera

    Energy Technology Data Exchange (ETDEWEB)

    Yadava, Y.P.; Silva, N.D.G.; Sousa, A.G. de; Sanguinetti Ferreira, R.A., E-mail: dea.a@hotmail.co [Universidade Federal de Pernambuco (UFPE), Recife, PE (Brazil). Dept. de Engenharia Mecanica

    2010-07-01

    Perovskite-type ceramic oxides or their derivatives are used for applications in high technology because of their enormous range of physic-chemical properties with little change in structural characteristics. In this paper we report manufacture ceramic components of a new ceramic Ca{sub 2}AlWO{sub 5,5} by thermo-mechanical process. Stoichiometric amounts of chemical constituents with high degree of purity, were homogenized using a ball mill and high purity alumina balls, compacted by uniaxial pressing and annealed at 1200 deg C for 48 hours. The structural characterization studied by x-ray diffraction that this material has a typical complex ordered cubic perovskite structure. For the study the stability of these ceramics in crude petroleum circular discs of 20 mm diameter and 2 mm thickness were produced and sintering. These discs were submerged in crude petroleum for 15, 30 and 45 days and were examined at each stage by X-ray diffraction, optical microscopy and hardness testing and these results show that Ca{sub 2}AlWO{sub 5,5} are stable in crude petroleum environment. (author)

  3. Validation of the extension of the range of application and of the single system of injection for the determination of total nitrogen in petroleum and its derivatives by chemiluminescence; Validacao da ampliacao da faixa de aplicacao e do sistema unico de injecao para a determinacao de nitrogenio total em petroleos e derivados por quimiluminescencia

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Maria de Fatima Pereira dos [Fundacao Gorceix, Ouro Preto, MG(Brazil)]. E-mail: santos@cenpes.petrobras.com.br; Tamanqueira, Juliana Boechat [Universidade Federal Fluminense, Niteroi, RJ (Brazil); Magalhaes, Julio Cesar Dias [PETROBRAS, Rio de Janeiro, RJ (Brazil). Centro de Pesquisas. Avaliacao de Petroleo; Oliveira, Elcio Cruz de [Transpetro, Rio de Janeiro, RJ (Brazil). Logistica e Planejamento; Vaitsman, Delmo Santiago [Universidade Federal, Rio de Janeiro, RJ (Brazil). Inst. de Quimica. Dept. de Quimica Analitica

    2003-12-01

    With the objectives of using a single system of injection and of extending the range of application for the method ASTM D4629/02 'Total Nitrogen in Petroleum Derivatives by the System of Injection with a Syringe and Detection by Chemo- Luminescence', it was studied a procedure by statistical validation with the objective of guaranteeing the analytical reliability of the assay and allowing the inclusion of samples of petroleum and heavy derivatives in one single methodology. The determination of total nitrogen for petroleum and derivatives is traditionally assayed using the method of Kjeldahl - a time-consuming methodology that requires a large amount of time for giving the final result, at the same time that is not recommended for concentrations below 0.1%w/w, which does not meet the requirements for the specifications of the product, in the petroleum industry. An alternative for the method of Kjeldahl is the pyro-chemo luminescence, which allows the achievement of more repetitive results for total nitrogen. In the detection of nitrogen, the technique combines the reliability of oxidative combustion with the sensitivity of chemiluminescence. Therefore, it was developed a protocol of validation in the methodology ASTM D4629/02 for the validation of the extension of the range of application and for the evaluation of the performance of the equipment in analytical conditions, according to the calibration curve. (author)

  4. In vitro evaluation of the morphologic changes on the root dentine irradiated by CO{sub 2} laser associated or not to calcium hydroxide application; Avaliacao in vitro das alteracoes morfologicas da superficie da dentina radicular irradiada pelo laser de CO{sub 2} associado ou nao a aplicacao de hidroxido de calcio

    Energy Technology Data Exchange (ETDEWEB)

    Romano, Ana Cristina Cury Camargo

    2003-07-01

    This in vitro study has evaluated the structural changes on the root dentine irradiated by a CO{sub 2} laser associated or not to calcium hydroxide application, from the irradiated surface analysis by means of Scanning Electronic Microscopy (SEM). The purpose of this evaluation has been the study of an alternative method for the treatment of dentine hypersensitivity. Fourteen human teeth were utilized, third molars, divided into 7 groups. Group I (control group) to which no treatment was applied; Groups II, III and IV were given an application of Ca (OH){sub 2} paste followed by C0{sub 2} laser irradiation, lasting 5 seconds each with intervals of 10 seconds between each application, with continuous emission, power of 0.5 W (Group II), 1.0 W (Group III), and 1.5 W (Group IV); Groups V, VI, and VII were given laser irradiations without the Ca (OH){sub 2} paste following the same parameters applied to groups II, III, and IV respectively. Morphologic changes suggesting to fusion and re-solidification have been observed, as well as the presence of material obstructing the whole analyzed surface on groups II, III, and IV (laser + Ca (OH){sub 2}). As for groups V, VI, and VII, it has been observed fusion, re-solidification, and cracks, and these results being statistically significant when compared the '(Ca (OH){sub 2})' groups to the laser groups. No statistically significant differences were observed regarding the different powers applied in the groups that used the same treatment. Despite this result, it can be stated that powers above 1.0 W (DP = 125,38 W/cm{sup 2}) are unfavorable due to the undesirable morphologic alterations and aesthetic compromising. (author)

  5. Fuzzy logic application for data correction of gamma ray profile and correlation with effective porosity of core from Resende Basin, Rio de Janeiro; Aplicacao da logica fuzzy para correcao de dados de perfil de raios gama e correlacao com porosidade efetiva de testemunhos da Bacia de Resende, Rio de Janeiro

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Francisco de Assis Leal de; Tunala, Leonardo Fernandes; Abreu, Carlos Jorge de; Lopes, Ricardo Tadeu, E-mail: pachoteki@yahoo.com.br, E-mail: leotunala@hotmail.com, E-mail: abreu@geologia.ufrj.br, E-mail: ricardo@lin.ufrj.br [Universidade Federal do Rio de Janeiro (UFRJ/CCMN), RJ (Brazil). Centro de Ciencias Matematicas e da Natureza. Inst. de Geociencias. Dept. de Geologia; Rocha, Paula Lucia Ferrucio da, E-mail: ferrucio@acd.ufrj.br [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil); Martins, Ricardo Rhomberg, E-mail: ricardo301@gmail.com [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Escola Politenica de Engenharia; Lima, Inaya Correa Barbosa, E-mail: inaya@lin.ufrj.br [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Centro de Tecnologia

    2010-12-15

    This work presents here a study on the porosity of cores from Resende Basin (Rio de Janeiro). The first step involved the selection, thinning of the material (core) and sample preparation for the use of porosimeter to obtain effective porosity. The material studied is sandstone, friable, coarse to very fine of three wells (GPR1, GPR2 and GPR3). The fuzzy logic (MatLab) was applied to the effective porosity data calculated from the gamma ray (GR) profile for the construction of a synthetic profile and from this we could identify the errors made in calculating the data. Then the results of porosity from the core were correlated with data from the corrected effective porosity (gamma ray profile) in order to prove the results obtained with both methods. The analysis of the synthetic porosity calculated by the fuzzy logic has shown that this is a promising method for assessing the quality of data and to obtain good fits. (author)

  6. Analysis of the productive chain of Brazilian oil sector in the midst of ethics in the application of productive excess, social and environmental responsibility and ensuring the quality of life; Analise da cadeia produtiva do setor petrolifero brasileiro em meio a etica na aplicacao dos excedentes produtivos, a responsabilidade social e ambiental e a garantia da qualidade de vida

    Energy Technology Data Exchange (ETDEWEB)

    Mello, Liodoro de; Domingos, Sergio Ricardo; Santos, Adilson Francisco dos [Universidade Federal de Itajuba (UNIFEI), MG (Brazil). Grupo de Engenharia da Energia

    2004-07-01

    The present work analyses the petroliferous productive chain, of the well you the rank. It shows the correlation with the ethics, the social responsibility and the guarantee of the quality of life human being. It considers it lives rational application of paid the resources preceding from royalties you the states and cities. With the reorganization of the petroliferous sector, in the second half of the decade of 90, lives specifically, with the edition of the Law n. 9.478/97, the decisions, until then, prevailed will be unilateral orientates of the federal government starts you count on the market, mediating agent of offers and demand. You the edition of the legal order, you the current days, the excellent facts ploughs dealt with transparency, the teams that if instituted the ANP, agency of regulating to character. The sector, with this, must give counterpart you the society, in the direction you reward the same one, will be possible damages or provoked aggressions, exactly that in involuntary way. Ethical The resolution of the conflicts follows an line of respect you the agents: companies, government and consumers. First with programs of professional qualification, the security, of institutional landmark, they stimulate the perfect competition and applies the exploratory balances in the form of royalties. And, the consumers, not less important, intent to ambient questions, demands quality US products. (author)

  7. REFLETINDO SOBRE AS ESPECIFICIDADES DA GEOGRAFIA NA CRISE DA MODERNIDADE

    Directory of Open Access Journals (Sweden)

    Patrício A. S. Carneiro Carneiro

    2010-08-01

    Full Text Available O presente artigo discute a evolução da ciência moderna, bem como a crise desse paradigma dominante e seus efeitos sobre a geografia. Destaca ainda a necessidade da construção de um novo pensamento científico para além das fronteiras disciplinares e do método absoluto.

  8. A dignidade da pessoa humana na doutrina social da igreja

    Directory of Open Access Journals (Sweden)

    Manzone, Gianni

    2010-01-01

    Full Text Available O texto faz uma análise panorâmica sobre a compreensão da dignidade humana nos diversos textos da Doutrina Social da Igreja, mostrando o entendimento da mesma nos diversos documentos dos Papas, notadamente Leão XII, Pio XI, Pio XII e João Paulo II, além de apontar aspectos históricos e culturais que influenciaram cada pronunciamento, o que foi determinante para a evolução do pensamento do Magistério na questão social. O ponto de partida é a visão antropológica da Doutrina Social da Igreja, resumida em termos de “homem criado por Deus a sua imagem e resgatado pelo sangue de Jesus Cristo” (Sollicitudo Rei Socialis 29. A partir daí, há a defesa do primado do ser humano sobre o social e reivindicações totalitaristas que perpassaram a história recente da humanidade, embora a pessoa seja sempre um ser-em-relação e situado em uma sociedade determinada

  9. Os usos da diversidade

    Directory of Open Access Journals (Sweden)

    Clifford Geertz

    1999-05-01

    Full Text Available Resumo Ao discorrer sobre o “Futuro do Etnocentrismo”, este artigo parte da premissa de que a globalização, apesar de ter – em muitos casos – diminuído as diferenças entre povos, não tem amenizado os preconceitos e as formas de discriminação que ocorrem em nome dessas diferenças. Ele resgata a importância do antropólogo neste cenário lembrando que a diversidade cultural faz parte da sociedade complexa, remetendo-se não apenas a grupos étnicos ou nacionais bem delimitados, mas também a diferenças de geração, gênero, sexo e classe, entre outros. Neste contexto, a tolerância passiva de modos distantes de vida assim como a aceitação pragmática de nosso próprio paroquialismo são atitudes não somente intelectualmente desonestas mas também moralmente repreensíveis. É no encontro incômodo de subjetividades variantes na sua própria sociedade que o antropólogo define seu lugar.

  10. Progresso Interdisciplinar da Medicina

    Directory of Open Access Journals (Sweden)

    Jorge Correia-Pinto

    2018-02-01

    Full Text Available Portugal é muitas vezes citado como um bom exemplo na prestação de cuidados de saúde. Para tal concorreram a investigação (engenharia biomédica, a evolução técnica e a diferenciação clínica de diferentes especialidades. Para que esta evolução se transfira para o paciente com o seu máximo potencial, o diálogo e a interdisciplinaridade são imprescindíveis. Nesta Edição da Gazeta Médica, vários artigos trazem até ao leitor alguns exemplos desta evolução e interdisciplinaridade, que continua todos os dias nos nossos hospitais. Assim não podemos deixar de salientar o enorme progresso que houve no desenvolvimento de antimicrobianos e logicamente, o desafio que agora enfrentamos, o da resistência aos antibióticos. Por outro lado, a biologia molecular ao permitir-nos conhecer melhor a origem e fisiopatologia de inúmeras doenças, abriu um janela de oportunidade para individualizar o algoritmo clínico de orientação e tratamento clínicos. É com naturalidade, portanto, que a seguir encontramos vários artigos que relatam estratégias de individualização terapêutica, aumentando o efeito terapêutico, e minimizando os efeitos laterais. Sendo o relator deste editorial, um cirurgião, não posso deixar de dar enfoque à forma como a cirurgia minimamente invasiva tem revolucionado a intervenção cirúrgica. A história reporta-nos que foram os urologistas e os ginecologistas os pioneiros em muitos dos passos determinantes para chegarmos à cirurgia laparoscópica. Aqueles e os cirurgiões digestivos documentaram clinicamente que o desenvolvimento da cirurgia minimamente invasiva trouxe consigo várias vantagens que, resumidamente, resultam numa convalescença pós-operatória mais suave e mais curta. Inspirado pelos benefícios bem documentados de cirurgia minimamente invasiva em adultos e crianças, o século XXI começou com as primeiras tentativas de transportar as vantagens desta abordagem para recém-nascidos, tal

  11. On-line diagnosis of high power motors based on ultra wide band partial discharge detection; Diagnostico en linea de motores de gran capacidad mediante la deteccion de descargas parciales utilizando tecnicas de banda ultra ancha

    Energy Technology Data Exchange (ETDEWEB)

    Carvajal M, F. Antonio; Garcia Colon H, Vicente R. [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Asiain, Tomas [Instituto Politecnico Nacional, Escuela Superior de Ingenieria Mecanica y Electrica (Mexico)

    2009-07-01

    In this work a non-standardized method for on-line diagnostic of high capacity motors based on Ultra Wide Band (UWB) Partial Discharge (PD) measuring techniques is theoretically supported, implemented and applied. The method developed is non invasive and consist in the measurement of PD in the main motor power supply cables and its ground shields connection using a near field sensor (Rogowski coil, clamp-on type) with a bandwidth of 2 to 40 MHz. The measured signals by the sensor, are stretched electronically, digitized and fed to a conventional Partial Discharge digital detector. The UWB PD detection system used displays the output in a Pulse repetition frequency-Charge-Phase angle (N-Q-?) PD pattern. The results obtained in thirteen 2500 H.P., 13.8 kV motors performed during operating in an Oil Pumping facility are presented, including its analysis and comparison with values and PD patterns reported in literature. [Spanish] En este trabajo se presentan los fundamentos teoricos, la implementacion y aplicacion de un metodo no normalizado, para el diagnostico en linea de motores de gran capacidad, basado en la deteccion de Descargas Parciales (DP) utilizando tecnicas de medicion de Banda Ultra Ancha. El metodo desarrollado es no invasivo y consiste en la medicion de las DP en los conductores y conexiones a tierra de la pantalla de los cables principales de suministro de energia al motor, utilizando un sensor de campo cercano (bobina Rogowski, tipo gancho) cuyo ancho de banda de medicion es de 2 a 40 MHz. Las senales medidas por el sensor son electronicamente procesadas para ampliar su duracion, digitalizadas y enviadas a un detector digital de Descargas Parciales convencional. El sistema de deteccion de DP en Banda Ultra Ancha despliega la medicion en un patron de DP tipo frecuencia de repeticion de Pulso-Carga-Angulo de fase (N-Q-?). Se presentan los resultados obtenidos de la evaluacion en linea de trece motores de 2500 C.P. a 13.8 kV, instalados y operando en una

  12. Os limites da competitividade

    Directory of Open Access Journals (Sweden)

    Henrique Rattner

    2009-08-01

    Full Text Available

    Costuma-se destacar os aspectos aparentemente positivos e as vantagens hipotéticas da concorrência e da competitividade entre empresas e também entre nações. Não se pode negar que a concorrência nos mercados tenha exercido uma função central e fundamental na gênese e na expansão do sistema de produção capitalista. Ela contribuiu para a geração e acumulação de riquezas materiais. Também estimulou e fortaleceu as aspirações de seus principais atores sociais, os empreendedores, de exigir uma organização política mais democrática em oposição ao regime feudal ou absolutista, em determinado período da história do mundo ocidental.

  13. Engenharia da mente

    OpenAIRE

    Bueno, Tânia Cristina D'Agostini

    2005-01-01

    Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção. Na era da informação digitalizada, pesquisadores de diferentes áreas do conhecimento enfrentam uma nova questão: a organização semântica dos dados. A matéria tornou-se importante pelo fato das informações digitalmente disponíveis estarem dispostas, em sua maioria, como dados não-estruturados. Todavia, sabe-se que a estruturação de dados é um problema complexo ...

  14. Em favor da talassografia

    Directory of Open Access Journals (Sweden)

    Jean-Louis Boudou

    2001-01-01

    Full Text Available A Talassografia (“descrição do mar” interessa-sepelos impactos físicos, biológicos, ecológicos... culturais da violenta antropização dos ambientes costeiros (oceânicos e continentais, caracterizados pelaexigüidade, vulnerabilidade, fragilidade e plasticidade. Como o Brasil é um “país marítimo”, os geó-grafos (os talassógrafos brasileiros são convidadosa intensificar suas pesquisas nas áreas costeiras e acriar novas estruturas para divulgá-las: Revista, Encontros, Associação, Pós-Graduação... tudo em prolda talassografia.

  15. ANÁLISE PRELIMINAR DA CONTROLADORIA DA CIDADE DE SALVADOR

    Directory of Open Access Journals (Sweden)

    João Marcelo Pitiá Barreto

    2012-06-01

    Full Text Available A Controladoria tem sido alvo de estudos e destaque de análises e reflexões dos estudiosos das ciências que têm como foco o campo gerencial das organizações como a da Administração e Contabilidade. É importante observar a contribuição da Controladoria à governança pública, fundamento de uma gestão democrática e participativa. Nesse contexto, insere-se o objetivo deste estudo, refletir sobre atuação da controladoria pública da cidade de Salvador, observando a contribuição efetiva na governança nesse município. Os estudos foram desenvolvidos na Secretaria da Fazenda (SEFAZ do município a quem Controladoria vincula-se. Com caráter exploratório, essa investigação descritiva envolveu pesquisa de campo, análise de documentos e relatórios emitidos pela SEFAZ e pelo Tribunal de Contas do Município (TCM. Verificou-se o organograma da SEFAZ, seu orçamento e os pareceres do TCM. Os resultados expressam a importância da Controladoria e denotam a impressão de que, na instituição estudada, essa área não esteja cumprindo bem seu papel. 

  16. Ocorrência da ferrugem da videira em Minas Gerais

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    Adelica Aparecida Xavier

    2012-03-01

    Full Text Available A ferrugem da videira causada por Phakopsora euvitis Ono constitui-se numa ameaça às regiões produtoras de uva em função do potencial destrutivo da planta. A doença foi detectada no Brasil, pela primeira vez, em 2001. Atualmente, ela ocorre no Paraná, Mato Grosso do Sul, São Paulo, Rio Grande do Sul, Mato Grosso, Roraima, Espírito Santo e Santa Catarina. Em abril de 2010, observaram-se na estação experimental da Unimontes, Janaúba, Minas Gerais, plantas da cv. Niágara rosada com sintomas típicos da doença. A análise dos sintomas e a caracterização dos urediniósporos sésseis, levemente equinulados, com formato oval, ou elipsoide formado em urédias subepidérmicas na origem, inrompentes e com paráfises circundantes dorsalmente, levaram à diagnose de Phakopsora euvitis como o agente causal da doença. Este é o primeiro relato da doença no Estado de Minas Gerais.

  17. Historicidade da filosofia em Hegel e Heidegger

    OpenAIRE

    Christian Iber

    2017-01-01

    Gostaria de discutir, em forma de teses, a temática da historicidade da filosofia em contraste e na sua divergência em Hegel e Heidegger. Diferente do historicismo, que não soluciona o problema da historicidade da filosofia, porque ele dissolve tendencialmente a filosofia na história da filosofia e não coloca em especial a questão da verdade, Hegel e Heidegger desenvolvem uma teoria genuinamente filosófica da história da filosofia do interesse filosófico pela verdade. Esse interesse genuiname...

  18. Development of an electronic ballast with high power factor, using cd/cd conversion techniques for fluorescent lamps; Desarrollo de un balastro electronico con alto factor de potencia, utilizando tecnicas de conversion cd/cd para lamparas fluorescentes

    Energy Technology Data Exchange (ETDEWEB)

    Ortiz, Raul Antonio

    1995-02-01

    Continuo (MCC), debido a las prestaciones que este convertidor ofrece [11]. La tecnica de control que se utilizo para este convertidor fue el control Modo Corriente Promedio (MCP). Cabe mencionar que en esta etapa de CFP se llevo a cabo un analisis comparativo en forma practica, en la que tambien se probaron dos topologias mas que fueron el convertidor Sepic y Cuk en modo de control seguidor de tension. Estas dos topologias fueron desarrolladas de manera independiente a este proyecto de tesis y no fueron implementadas al balastro como etapa de correccion activa del FP. En la etapa de manejo a la lampara, se uso un convertidor CD/CA en configuracion Push-Pull, en el que se utilizo la tecnica de control PWM para el manejo de la lampara fluorescente. La utilizacion de balastros electronicos en alta frecuencia dentro del rango de 20 a 50 KHz [6,7], hace que se presenten menores perdidas de potencia y favorece los procesos fisicos de la descarga (seccion 1.2.2.)(abstract truncated)

  19. Modelo para sistemas da qualidade como base da estrategia competitiva

    OpenAIRE

    Marco Antonio Silveira

    1999-01-01

    Resumo: Vários autores propõem a empresa como um sistema em transformação, sendo que esse enfoque sistêmico parece oferecer um meio efetivo de prover as capacidades estratégicas que são valorizadas pelos mercados atuais. Por outro lado, vem crescendo a consciência para o enfoque da qualidade como base da estratégia competitiva, onde esta é associada à lucratividade e incluída no processo de planejamento estratégico, tornando-se um instrumento eficaz de concorrência que, para fazer frente à di...

  20. Dimensão da maturidade à luz da logoterapia

    Directory of Open Access Journals (Sweden)

    Libardi, Tadeu Antonio

    2008-01-01

    Full Text Available O artigo aborda o tema da maturidade humana à luz da logoterapia, fundada por Viktor Emil Frankl. Nos dias de hoje, existe a frustração existencial, não mais a sexual, como analisada por Freud. Cada ser humano, como pessoa livre e responsável e tendo como meta a busca da maturidade, vai percorrendo seu próprio caminho, que o leva à ceitação de si, de seus limites e potencialidades e ao relacionamento social e religioso, capacitando-o ao confronto com o sofrimento humano

  1. O carnaval da turba futurista

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    Ana Paula Freitas de Andrade

    2017-11-01

    Full Text Available O artigo trata da repercussão do futurismo italiano no Brasil, a partir da análise de crônicas de Menotti Del Picchia publicadas no Correio Paulistano, entre 1920 e 1922. Nessa época o escritor participou da polêmica sobre a vanguarda italiana veiculada na imprensa paulistana, publicando uma série de crônicas que, ao promover ideias futuristas e criticar a literatura passadista, estabelecem a formulação de um futurismo compósito, adaptado à realidade brasileira; e esboçam as principais teses do movimento modernista.

  2. Evapotranspiração da cultura da cebola

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    G. M. Oliveira

    2015-10-01

    Full Text Available A determinação da quantidade de água necessária para as culturas é um dos principais fatores para o correto planejamento, dimensionamento e manejo de qualquer sistema de irrigação. O presente trabalho teve como objetivo, comparar medida da evapotranspiração da cultura (ETc da cebola com estimativa obtida a partir da evapotranspiração de referência (ETo determinada por diferentes métodos e Kc proposto na literatura. O experimento foi conduzido no campo experimental do Departamento de Tecnologia e Ciências Sociais da Universidade do Estado da Bahia - UNEB, em Juazeiro, no período de junho a setembro de 2011. As medidas da ETc foram obtidas em evapotranspirômetros e as estimativas, a partir de ETo determinada pelos métodos: Penman-Monteith (padrão FAO, Penman-Monteith modificado por Villa Nova et al. (2004, Hargreaves & Samani, Makkink e Jensen & Haise e Kc proposto por Marouelli et al. (2005, para a cultura da cebola. É fundamental a avaliação de métodos de estimativa da evapotranspiração de referência antes de sua aplicação, pois erros consideráveis podem ser cometidos na determinação da quantidade de água a ser aplicada a uma cultura, o que repercutirá certamente, na produtividade.Evapotranspiration crop onionAbstract: The determination of the amount of water needed for crops is a major factor for the correct planning, sizing and management of any irrigation system. This study aimed to compare measure of crop evapotranspiration (ETc onion with estimates obtained from the reference evapotranspiration (ETo determined by different methods and Kc proposed in the literature. The experiment was conducted in the experimental field of the Department of Technology and Social Sciences, University of the State of Bahia, in Juazeiro, from June to September 2011. The ETc measurements were obtained in evapotranspirometers and estimates, from ETo determined by the methods: Penman-Monteith (FAO standard, Penman-Monteith modified

  3. Dos Males da Medida

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    Lilia Moritz Schwarcz

    1997-01-01

    Full Text Available Esse artigo tem como objeto a difícil percepção da "diferença". Tema polêmico, o debate sobre as variedades culturais foi transformado, em meados do século XIX, em uma questão racial e, nesse sentido, vinculado às regularidades da biologia. Tecendo comparações entre os teóricos raciais brasileiros e os impasses mais contemporâneos, sobre a aferição de inteligência e capacidade, esse ensaio pretende provocar. Em pauta estarão as contradições que têm se destacado, mais recentemente, quando se opõem de um lado as etnicidades locais, de outro a tão propalada globalização. Tal qual dois lados de uma mesma moeda, a afirmação de identidades tem se mostrado tão evidente como o próprio estreitamento das relações internacionais. Mudam os termos do debate - de raça, para etnia -, mas, de alguma maneira, continuamos presos a uma lógica positiva de estabelecimento de hierarquias ontológicas.This article has as its objective the difficult perception of "difference". A controversial theme, in the nineteenth century, this debate on cultural varieties, became a racial issue and in this sense, bonded to the regularities of biology. In such a context, this essay intends to provoke comparisons about the standard measure of intelligence and capacity, between Brazilian racial theorists and the impasse of more contemporary times. Appointed here will be the contradictions which have, more recently grown in importance, and have opposed through one aspect, local ethnic groups and through another the greatly publicized globalization. As are the two sides of a coin, the affirmation of identities has shown itself as evident as the tightening of international relations. The terms of the debate change from race to ethnicism, but in some way, we are still tied to a positivist logic which establishes ontologic hierarchies.

  4. SOBRE OS FUNDAMENTOS DA ARQUITETURA DA INFORMAÇÃO

    Directory of Open Access Journals (Sweden)

    Alfram Roberto Rodrigues de Albuquerque

    2011-10-01

    Full Text Available Expõe-se o estado atual da disciplina Arquitetura da Informação quanto a problemática terminológica da definição do campo de estudo, apresentando-se argumentos para uma definição de Arquitetura da Informação de uma forma ampla na qual os usos correntes dessa expressão sejam vistos como especializações. Defende-se uma definição com a utilização de um conjunto de propriedades mínimas cujas interações levam a uma terminologia formal e cuja abstração leva a uma definição formal do conceito que emprega a linguagem de morfismos da Teoria das Categorias. Trata-se de um recorte de alguns dos resultados obtidos na tese de doutoramento de um dos autores, defendida em setembro de 2010. O contexto da pesquisa é exposto e alguns dos resultados obtidos são delineados.

  5. O sentido da espiritualidade na transitoriedade da vida

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    Isabel Cristina de Oliveira Arrieira

    Full Text Available Resumo Objetivo: Compreender o sentido da espiritualidade para a pessoa em cuidados paliativos. Métodos: Abordagem qualitativa, fundamentada na fenomenologia existencialista e referencial de Viktor Frankl. Os participantes foram nove pessoas em cuidados paliativos atendidas no domicílio. Informações coletadas por meio da observação e de entrevista realizadas no período de junho a outubro de 2014, gravadas, transcritas e transformadas em texto interpretado com a abordagem fenomenológica hermenêutica. Resultados: Surgiram as seguintes categorias: sentido de continuidade da vida; sentido de alívio do sofrimento; sentido de naturalidade da morte e sentido de valorização do viver. Conclusão: Para a integralidade da atenção faz-se necessário a inclusão da espiritualidade na prática do cuidado em saúde. A espiritualidade proporciona o encontro existencial entre a pessoa em cuidados paliativos e os profissionais que a cuidam em sua integralidade.

  6. O uso da aromaterapia na melhora da autoestima

    Directory of Open Access Journals (Sweden)

    Juliana Rizzo Gnatta

    2011-10-01

    Full Text Available Os objetivos deste estudo foram verificar se a inalação dos óleos essenciais de rosa e de ylang-ylang alteram a percepção da autoestima e comparar a eficácia dos mesmos. O projeto foi aprovado pelo Comitê de Ética em Pesquisa do Hospital da Universidade de São Paulo. Participaram 43 funcionários dos setores de Higienização e da Central de Materiais e Esterilização durante os meses de maio a julho de 2009. Os sujeitos foram randomizados em três grupos: dois que receberem os óleos essenciais e outro que recebeu placebo (essência de rosa. A avaliação da autoestima foi feita através de uma escala já validada no Brasil, sendo aplicada antes do uso dos aromas, depois de 30 dias de uso e ao completar 60 dias. Dentre os resultados, verificou-se que a amostra era constituída por 88,6% de indivíduos com média e alta autoestima e que os óleos essenciais em questão não alteraram de forma significativa a percepção da autoestima.

  7. A utilização da teoria da aprendizagem significativa no ensino da Enfermagem

    Directory of Open Access Journals (Sweden)

    Alana Tamar Oliveira de Sousa

    2015-08-01

    Full Text Available RESUMOObjetivo:sintetizar a produção científica acerca da Teoria da Aprendizagem Significativa no processo de ensino-aprendizagem em Enfermagem.Método:revisão integrativa realizada nas bases de dados MEDLINE, LILACS, SciELO, BDENF e CINAHL, com artigos que abordaram a temática ou aspectos da teoria da aprendizagem significativa de David Ausubel. Fizeram parte da amostra dez artigos, sendo seis escritos no idioma português e quatro no inglês, publicados de 1998 a 2013.Resultados:cinco artigos fizeram alusão à Teoria da Aprendizagem Significativa, quatro citaram Ausubel como autor dessa teoria e apenas dois seguiram a estrutura para a aplicação da teoria completamente. Há escassez de estudos sobre o tema e os que o abordam não o correlacionam com a teoria de Ausubel.Conclusão:faz-se necessário romper com a dicotomia entre teoria e prática e promover a articulação dos conteúdos com a ação, introduzindo o aluno como autor de seu próprio conhecimento.

  8. CT assessment of thoracic gunshot wounds. Our personal experience; Ruolo della Tomografia Computerizzata nelle lesioni da arma da fuoco del torace. Esperienza personale

    Energy Technology Data Exchange (ETDEWEB)

    Salzano, A.; De Rosa, A. [Ospedale Loreto Mare, Neaples (Italy). Servizio di Radiologia; Carbone, M.; Rossi, E.; Burnese, L. [Neaples Univ., Neaples (Italy). Ist. di Scienze Radiologiche; Muto, M.; Tuccillo, M. [Azienda Ospedaliera di Rilievo Nazionale A. Cardarelli, Neaples (Italy). Servizio di Neuroradiologia, 2 Servizio di Radiologia; Nunziata, A. [Pronto Soccorso Est, ASL NA1, Neaples (Italy). Area di Diagnostica per Immagini

    1999-11-01

    delle principali lesioni interne con adeguata e istantanea pianificazione del trattamento chirurgico d'emergenza e/o rianimativo di supporto. Scopo del presente lavoro e' quello di illustrare il ruolo dell'esame TC nel documentare le molteplici e complesse lesioni pleuropolmonari, cardiovasali e della parete toracica, la cui compromissione si manifesta con semeiologia specifica e acuta del tutto diversa da quella della traumatologia toracica classica. Negli ultimi 4 anni sono stati osservati presso il pronto soccorso dell'Ospedale Loreto Mare di Napoli 76 casi di ferite d'arma da fuoco, di cui 26 con interessamento toracico: 25 maschi e una femmina (eta' media 32 anni, compresa tra 17 e 48 anni). Tutti i pazienti sono stati sottoposti a TC d'urgenza del torace con iniezione endovenosa di mdc e con tecnica angio-TC e in presenza del medico rianimatore con monitoraggio delle funzioni vitali e dello stato di shock. In 4 casi e' stato completato con studio TC dell'addome e pelvi per la presenza di lesioni associate toraco-addominali e in 3 casi con TC del cranio per lesioni encefaliche da proiettile. Il radiogramma del torace consente di documentare i danni maggiori toraco-polmonari d'arma da fuoco, anche se non permette la valutazione precisa delle lesioni cardiache e dei grandi vasi e dei pneumotoraci minimali. L'associazione di alterazioni traumatiche cranio-addominali concomitanti indirizza l'approccio diagnostico verso una metodica di primo livello come la TC, in grado di fornire con un unico esame il giudizio immediato sul grado di compromissione, panoramicita' e gravita' delle lesioni da arma da fuoco polmonari e extratoraciche. Cio' consente di instaurare la terapia tempestiva e mirata, sia essa chirurgica o di supporto rianimativo, evitando ritardi diagnostici e di gestione terapeutica sicuramente dannosi per la sopravvivenza del paziente.

  9. Da janela do meu quarto

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    Esther Hamburger

    2008-12-01

    Full Text Available O texto aborda o curta Da Janela do Meu Quarto de Cao Guimarães como contraponto a filmes brasileiros recentes que lidam com a desigualdade social brasileira na chave da violência. O texto contrasta o distanciamento imposto pelo posicionamento de câmera e efeitos de montagem e som nesse filme, com o uso de estratégias de pertencimento e apropriação presentes em filmes "de resultado".

  10. Da janela do meu quarto

    OpenAIRE

    Hamburger, Esther

    2008-01-01

    O texto aborda o curta Da Janela do Meu Quarto de Cao Guimarães como contraponto a filmes brasileiros recentes que lidam com a desigualdade social brasileira na chave da violência. O texto contrasta o distanciamento imposto pelo posicionamento de câmera e efeitos de montagem e som nesse filme, com o uso de estratégias de pertencimento e apropriação presentes em filmes "de resultado".

  11. GRAU DA PRÁXIS DA GESTÃO DA RESPONSABILIDADE AMBIENTAL PRATICADA POR USINAS SUCROALCOOLEIRAS

    Directory of Open Access Journals (Sweden)

    Renata Longo

    2014-12-01

    gerencial (PCDA foi o Action que apresentou maior grau de aderência. Há uma concordância acentuada às características fundamentais do ciclo gerencial na Gestão da Responsabilidade Socioambiental.

  12. Papel da vitamina B12 na patogenia da mielose funicular

    Directory of Open Access Journals (Sweden)

    Horacio M. Canelas

    1965-12-01

    Full Text Available Foi estudada a absorção da vitamina B12 radioativa em 29 casos de mielose funicular. O diagnóstico baseou-se na clássica sintomatologia neu- rológica e na presença de acloridria gástrica e eventuais alterações hemato-lógicas. As manifestações neurológicas foram avaliadas de modo semiquan-titativo e correlacionadas com os resultados do teste de excreção urinária da vitamina B12. Não foi verificada correlação significante da absorção da vitamina B12, quer com a sintomatologia nuerológica total, quer com as síndromes periférica e funicular dorsal. Contudo, foi encontrada significante correlação negativa entre a síndrome piramidal e a absorção da vitamina B12. Os resultados são confrontados com o papel desempenhado pela vitamina B12 na síntese das bainhas de mielina e do ácido ribonuclêico, sendo salientada a importância dêste último para a vida das células nervosas e dos longos axônios.

  13. The limits of postfigurative technique in Ignazio Silone's Pane e Vino ...

    African Journals Online (AJOL)

    Uno scrittore che ha usato questa tecnica è Ignazio Silone. Essa forma una parte vitale della struttura del suo romanzo del 1937, Pane e vino. Tuttavia ci sono fondamentali debolezze nell'uso di Silone della figura simbolica di Cristo, il che esemplifica la critica di tale tecnica espressa in generale, fra i tanti, da Liston Pope e ...

  14. Publicidade e ética: um estudo da construção da imagem da mulher

    Directory of Open Access Journals (Sweden)

    Elizabeth Moraes Gonçalves

    2010-02-01

    Full Text Available O texto propõe uma reflexão sobre a ética da responsabilidade na publicidade veiculada nas revistas Claudia e Nova. Trata-se de uma pesquisa descritiva, resultante da leitura dos anúncios selecionados, subsidiada por teóricos da Análise do Discurso da linha francesa, que busca averiguar como a mulher é representada. Constatou-se que no contexto da sociedade contemporânea o retrato da mulher como sedutora ainda está presente, mesmo que em vários momentos ela apareça como protagonista de sua própria vida.

  15. Variedades da Democracia no Brasil

    Directory of Open Access Journals (Sweden)

    Fernando Bizzarro

    Full Text Available Resumo Neste artigo apresentamos resultados coletados pelo projeto Variedades da Democracia para o Brasil. Descrevemos a evolução histórica da democracia brasileira entre 1900 e 2015 enfocando seus cinco principais componentes (eleitoral, liberal, participativo, deliberativo e igualitário e duas dimensões adjacentes ao regime (corrupção e partidos políticos. Por fim, nós comparamos os dados para o Brasil com resultados obtidos para outros países da América do Sul. A análise dos dados aponta: a. a existência de uma trajetória “em espiral” dos regimes políticos no Brasil, na qual novas experiências democráticas tendem a superar experiências anteriores em todos os quesitos; b. os avanços e limites da experiência democrática contemporânea em que se combinam bons resultados nos indicadores eleitoral, liberal e deliberativo da democracia, e resultados menos elevados nos componentes igualitário e participativo do regime, bem como em suas dimensões adjacentes.

  16. 76 FR 12627 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG...

    Science.gov (United States)

    2011-03-08

    ... Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG Airplanes AGENCY: Federal Aviation Administration (FAA... on Diamond aeroplanes, the majority of which were DA 40. In additional, at least 18 doors have been... conditions) while the aeroplane was parked. All DA 40 and DA 42 aeroplanes have a system installed that...

  17. 76 FR 27861 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG...

    Science.gov (United States)

    2011-05-13

    ... Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 M-NG Airplanes... on Diamond aeroplanes, the majority of which were DA 40. In additional, at least 18 doors have been... conditions) while the aeroplane was parked. All DA 40 and DA 42 aeroplanes have a system installed that...

  18. Technical evaluation of the reduction of energy consumption and electrical demand of active power on the campus of UFMT (Universidade Federal de Mato Grosso) after implantation of the energy efficiency project; Avaliacao tecnica da reducao do consumo de energia eletrica e demanda de potencia ativa no campus da UFMT apos implantacao do projeto de eficiencia energetica

    Energy Technology Data Exchange (ETDEWEB)

    Gomes, Teresa Irene Ribeiro de Carvalho Malheiro; Vasconcelos, Arnulfo Barroso de [Universidade Federal de Mato Grosso (NIEPE/UFMT), Cuiaba, MT (Brazil). Nucleo Interdisciplinar de Estudos de Planejamento Energetico; Ochiuto, Milton de Souza; Bernardes, Thiago Alves [Centrais Eletricas Matogrossenses (CEMAT), Cuiaba, MT (Brazil); Barros, Regiane Silva de [Universidade Federal de Mato Grosso (UFMT), Cuiaba, MT (Brazil)

    2008-07-01

    Since the energy crisis of 2001, measures that promote rational use of energy have been adopted by the Brazilian population. Either by industries that developed more efficient equipment, or by consumers, inclined in acquiring these equipment and adopting rational energy use measures, or by the government, that established a series of measures stimulating the energy efficiency. This work will go to illustrate some of these measures, as the implantation of STAMP PROCEL, that aims to indicate to the consumer which equipment achieve greater efficiency in each category. And law number 9,991, of July 24 2000, that regulates research and development investments in energy efficiency by electric sector companies. Finally, the result of the implantation of a energy efficiency project in a public agency will be shown, illustrating the impacts that the development of these projects bring to society as a whole. (author)

  19. Ensino da música

    OpenAIRE

    Vieira, Maria Helena

    2017-01-01

    O papel da Igreja Católica no desenvolvimento do ensino da música em Portugal é inquestionável. Neste texto descreve-se como a música e o seu ensino antecederam a própria fundação da nacionalidade no território que é hoje Portugal, e como a Igreja Católica teve um papel preponderante, até aos nossos dias, no desenvolvimento desse ensino e na criação de estruturas pedagógicas que permitiram a aprendizagem musical ao longo dos séculos. Primeiro nas escolas monacais, depois nas sés catedrais, e ...

  20. O LUGAR DA MORADIA SOCIAL

    OpenAIRE

    Daniela das Neves Alvarenga; Paulo Romano Reschilian

    2017-01-01

    Objetivou-se com este artigo analisar o processo de segregação socioespacial nas cidades industriais europeias, com olhar na localização da moradia operária no espaço urbano. A partir desta análise, parte-se para a construção do cenário no Brasil, apontando as origens da habitação social nas cidades industriais, com enfoque na inserção urbana da moradia produzida pela iniciativa privada e pelo Estado até os dias atuais, culminando na produção de interesse social vinculada ao programa habitaci...

  1. Terapia cognitivo-comportamental da fobia social

    OpenAIRE

    Ito,Lígia M; Roso,Miréia C; Tiwari,Shilpee; Kendall,Philip C; Asbahr,Fernando R

    2008-01-01

    OBJETIVO: Este artigo revisa aspectos relevantes da fobia social e os estágios de tratamento através da terapia cognitivo-comportamental em crianças, adolescentes e adultos. MÉTODO: A partir do banco de dados Medline, realizou-se revisão da literatura publicada a respeito do tratamento da fobia social por meio da terapia cognitivo-comportamental. RESULTADOS: Revisão da literatura sugere que a fobia social é uma condição prevalente e crônica, caracterizada por inibição social e timidez excessi...

  2. Technical memory 1999; Memoria tecnica 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The technical memory 1999 of the Nuclear Regulatory Authority (NRA) of the Argentine Republic, compile the papers published in the subject on radiation protection and nuclear safety, safeguards and physical protection, and presented in congress or meetings of these specialities by personnel of the mentioned institution during 1999.

  3. Technical Report 2000; Memoria Tecnica 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The technical memory 2000 of the Nuclear Regulatory Authority (NRA) of the Argentine Republic, compile the papers published in the subject on radiation protection and nuclear safety, safeguards and physical protection, and presented in congress or meetings of these specialities by personnel of the mentioned institution during 2000. In this edition the documents are presented on: Nuclear safety; Radiobiology; Occupational doses; Radiochemical; Environmental studies; Emergency plans; Radiation accidents; and International safeguards. Some of them are realized by agreements between the Nuclear Regulatory Authority of Argentina, universities and other national and international organizations.

  4. O panorama das Drogas no México: da margem da sociedade ao centro da cultura

    Directory of Open Access Journals (Sweden)

    Diana Palaversich

    2013-12-01

    Full Text Available O artigo destaca o percurso das manifestações culturais ligadas ao tráfico de drogas no México, de um lugar marginal, de subcultura, na sociedade mexicana das décadas de 1970 e 1980, expressas principalmente através dos narcocorridos e do narcocine, para um lugar no mainstream cultural mexicano, desde o início do século 21, com destaque especial para a narcoliteratura. O aumento da violência, provocado pela guerra ao narcotráfico, produz uma proliferação da temática nos meios de comunicação e se reflete em áreas da cultura como as artes plásticas e a literatura, produzindo um novo tipo de expressão artística ou narrativa, que tanto pode ser oportunista e contribuir para a banalização da violência do narcotráfico como ser crítica e narrar o impacto individual e coletivo do tráfico de drogas, narrar a desenfreada e violenta realidade mexicana sem cair no estilo da imprensa marrom, do folclore ou dos lugares comuns dos romances de ação.

  5. Cinco discursos da digitalidade audiovisual

    Directory of Open Access Journals (Sweden)

    Gerbase, Carlos

    2001-01-01

    Full Text Available Michel Foucault ensina que toda fala sistemática - inclusive aquela que se afirma “neutra” ou “uma desinteressada visão objetiva do que acontece” - é, na verdade, mecanismo de articulação do saber e, na seqüência, de formação de poder. O aparecimento de novas tecnologias, especialmente as digitais, no campo da produção audiovisual, provoca uma avalanche de declarações de cineastas, ensaios de acadêmicos e previsões de demiurgos da mídia.

  6. CILADAS DA DIFERENÇA

    Directory of Open Access Journals (Sweden)

    Antônio Flávio Pierucci

    1990-12-01

    Full Text Available Este artigo procura analisar os efeitos perversos da apropriação pela esquerda de um tema definidor das tradições de direita, a saber, a diferença. Com base no caso Sears (EUA e no caso Le Pen (França, o autor aponta para as armadilhas racistas e sexistas presentes nos discursos que focalizam e enfatizam a diferença, sobretudo num período histórico de reemergência dos conservadorismos que, por sua vez, se apropriam do argumento da diferença, dirigindo-o contra os próprios movimentos de esquerda.

  7. Cultura da Convergência

    Directory of Open Access Journals (Sweden)

    Rogério Christofoletti

    2008-12-01

    Full Text Available Três idéias já seriam suficientes para que a leitura de “Cultura da Convergência”, de Henry Jenkins, interessasse a jornalistas e pesquisadores da área: a convergência midiática como um processo cultural; o fortalecimento de uma economia afetiva que orienta consumidores de bens simbólicos e criadores midiáticos; a expansão de formas narrativas transmidiáticas.

  8. da Vinci decoded: does da Vinci stereopsis rely on disparity?

    Science.gov (United States)

    Tsirlin, Inna; Wilcox, Laurie M; Allison, Robert S

    2012-11-01

    In conventional stereopsis, the depth between two objects is computed based on the retinal disparity in the position of matching points in the two eyes. When an object is occluded by another object in the scene, so that it is visible only in one eye, its retinal disparity cannot be computed. Nakayama and Shimojo (1990) found that a precept of quantitative depth between the two objects could still be established for such stimuli and proposed that this precept is based on the constraints imposed by occlusion geometry. They named this and other occlusion-based depth phenomena "da Vinci stereopsis." Subsequent research found quantitative depth based on occlusion geometry in several other classes of stimuli grouped under the term da Vinci stereopsis. However, Nakayama and Shimojo's findings were later brought into question by Gillam, Cook, and Blackburn (2003), who suggested that quantitative depth in their stimuli was perceived based on conventional disparity. In order to understand whether da Vinci stereopsis relies on one type of mechanism or whether its function is stimulus dependent we examine the nature and source of depth in the class of stimuli used by Nakayama and Shimojo (1990). We use three different psychophysical and computational methods to show that the most likely source for depth in these stimuli is occlusion geometry. Based on these experiments and previous data we discuss the potential mechanisms responsible for processing depth from monocular features in da Vinci stereopsis.

  9. Efeito da urina de vaca no estado nutricional da alface

    Directory of Open Access Journals (Sweden)

    Nelson Licínio C. de Oliveira

    2010-08-01

    Full Text Available Existem diversos relatos da utilização da urina de vaca em hortaliças, todavia sua eficácia carece de comprovação. Objetivou-se avaliar o efeito da urina de vaca no estado nutricional da alface. O experimento foi constituído de 12 tratamentos, esquema de parcelas subdivididas, em blocos ao acaso, com quatro repetições. Nas parcelas foram alocadas as vias de aplicação (solo ou foliar e nas subparcelas as concentrações das soluções (0,00; 0,25; 0,50; 0,75; 1,00 e 1,25% v/v. Aplicou-se 60 mL de solução/planta, divididos em cinco aplicações de 5; 5; 10; 20 e 20 mL/planta, aos 7, 14, 21, 28 e 35 após o transplante, respectivamente. Durante o ciclo avaliou-se o índice SPAD e na colheita a massa da matéria seca de cabeça (MSCA e os teores de N, P, K, Ca, Mg, S, Na, Zn, Fe, Mn, Cu e B na matéria seca das folhas (MSF, caule (MSC e raízes (MSR. Em ambas as vias de aplicação o índice SPAD apresentou incremento linear às concentrações e resposta quadrática ao longo do tempo. A MSCA teve comportamento linear às concentrações, com aumento de 25,9 e 35,4% nas aplicações via foliar e solo, respectivamente. Não houve efeito de concentrações sobre teores de nutrientes na MSF e MSC. Na MSR, via solo, os teores de P e K apresentaram pontos de máximo enquanto Fe e Mn de mínimo; o Na apresentou incremento linear às concentrações via foliar. Os efeitos da urina sobre o crescimento da alface provavelmente são devidos a fatores outros que não somente a quantidade de nutrientes veiculados nas soluções.

  10. Scanning Techniques for Brain-Tumour, Localization; Techniques Scintigraphies pour la Iocalisation des Tumeurs Cerebrales; Tekhnika skennirovaniya pri opredelenii lokalizatsii opukholej mozga; Tecnicas Centelleograficas para la Localizacion de Tumores Cerebrales

    Energy Technology Data Exchange (ETDEWEB)

    Duggan, M. H.; Brice, J.; Jones, E.; Mallard, J. R.; Myers, M. L. [Department Of Medical Physics, Postgraduate Medical School, Hammersmith Hospital, London (United Kingdom)

    1964-10-15

    tentativa para efectuar exploraciones con esa sustancia por deteccion gamma con ayuda de un colimador enfocado. En la memoria se presentan los primeros resultados de ese estudio. Los colimadores enfocados que se emplean para los emisores gamma tienen un foco geometrico profundo y con ellos se obtienen lineas de isorrespuesta a fuentes puntiformes que son casi independientes de la profundidad en una extension de 20 cm. Los resultados experimentales han permitido obtener datos para construir colimadores que reunen ciertas caracteristicas especificas. Algunos casos de tumor cerebral han sido explorados con un detector estacionario de camara de rayos gamma y presentados en un osciloscopio con memoria. Las ventajas de estos instrumentos estriban en su mayor sensibilidad y en la rapidez con que permiten visualizar el esquema de distribucion de la radiactividad, lo cual permite a su vez efectuar estudios dinamicos. Los inconvenientes que entrana el empleo de esos dispositivos son, entre otros, la dificultad de marcar caracteristicas anatomicas y las deformaciones geometricas a que dan lugar. En la memoria se comparan estas ultimas al utilizar camaras estenoscopicas y camaras de matriz. Se discuten las mejoras obtenidas modificando los circuitos para lograr que el tamano de la imagen sea independiente de la energia de los rayos gamma. El analisis de los centelleogramas del cerebro presenta dificultades cuando la region sospechosa acusa un indice de recuento solo ligeramente superior al de las zonas que la rodean. Se ha determinado un esquema 'normal' de fndice de recuento para una cabeza, dividiendo los centelleogramas en regiones que desde el punto de vista anatomico son casi equivalentes de un paciente a otro, y contando los datos centelleograficos en cada region. Todo centelleograma anormal se puede comparar con este esquema. Estos tipos de analisis pueden efectuarse con provecho mediante calculadoras. Tambien puede ser util emplear tecnicas de promediacion continua para

  11. A identidade à flor da pele: etnografia da prática da tatuagem na contemporaneidade

    Directory of Open Access Journals (Sweden)

    Andrea Lissett Pérez

    2006-04-01

    Full Text Available No presente artigo, realiza-se uma descrição etnográfica da prática da tatuagem na contemporaneidade, a partir de uma perspectiva que prioriza as noções da prática, das interações e das experiências vividas durante o processo de ser tatuado. A reflexão tenta reconstruir uma visão total da prática da tatuagem que abrange o mundo subjetivo e as dinâmicas sociais como partes constitutivas desse ato. Entre as idéias conclusivas estão, de um lado, o surgimento de uma nova normalidade estética e vivencial no seio da sociedade ocidental e, de outro, a configuração de uma nova subjetividade, a dos "tatuados", como um processo interativo, inovador, emotivo e reflexivo, em que o corpo se converte em uma forma de expressão e construção do sujeito.This article provides a descriptive account of contemporary tattooing, based on a perspective that prioritizes the notion of practice, as well as the interactions and experiences involved in the process of being tattooed. The analysis attempts to rebuild a holistic view of tattooing, combining subjective processes and social dynamics as equally constitutive parts of this activity. Among the conclusions reached are: (a the emergence of tattooing as a new aesthetic norm and a lived experience at the heart of the western society; and (b the configuration of a new subjectivity, the ‘tattooed,’ as an interactive, innovative, emotional and reflexive process in which the body is converted into a form of expressing and constructing the subject.

  12. Leonardo da Vinci and the Downburst.

    Science.gov (United States)

    Gedzelman, Stanley David

    1990-05-01

    Evidence from the drawings, experiments, and writings of Leonardo da Vinci are presented to demonstrate that da Vinci recognized and, possibly, discovered the downburst and understood its associated airflow. Other early references to vortex flows resembling downbursts are mentioned.

  13. Tratamento da dor em queimados

    Directory of Open Access Journals (Sweden)

    Rodrigo José Alencar de Castro

    2013-02-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Apesar dos avanços, ainda é observado manejo analgésico inadequado dos pacientes com queimaduras. O objetivo desta revisão foi coletar dados sobre tratamento da dor em queimados. CONTEÚDO: Foi feita revisão sobre os mecanismos de dor, avaliação do paciente com queimadura e o tratamento farmacológico e não farmacológico. CONCLUSÕES: O manejo da dor em pacientes vítimas de queimaduras ainda é um desafio por parte da equipe multiprofissional. A avaliação frequente e contínua da resposta apresentada pelo paciente é muito importante, tendo em vista os vários momentos por que passa o paciente internado em decorrência de uma queimadura, além de uma terapêutica combinada com medicações analgésicas e medidas não farmacológicas. Entender a complexidade de alterações fisiopatológicas, psicológicas e bioquímicas apresentadas por um paciente em tratamento de queimadura é o primeiro passo para alcançar o sucesso no seu manejo analgésico.

  14. Šmakuláda

    Czech Academy of Sciences Publication Activity Database

    Ireinová, Martina

    2017-01-01

    Roč. 100, č. 3 (2017), s. 189-191 ISSN 0027-8203 R&D Projects: GA ČR(CZ) GA16-04648S Keywords : šmakuláda * šmak * Czech National Corpus * database Neomat * etymology Subject RIV: AI - Linguistics OBOR OECD: Linguistics

  15. Smart AD and DA Converters

    NARCIS (Netherlands)

    Roermund, van A.H.M.; Hegt, J.A.; Harpe, P.J.A.; Radulov, G.I.; Zanikopoulos, A.; Doris, K.; Quinn, P.J.

    2005-01-01

    In this paper, a concept is proposed to solve the problems related to the embedding of AD and DA converters in system-on-chips, FPGAs or other VLSI solutions. Problems like embedded testing, yield, reliability and reduced design space become crucial bottlenecks in the integration of high-performance

  16. O LUGAR DA MORADIA SOCIAL

    Directory of Open Access Journals (Sweden)

    Daniela das Neves Alvarenga

    2017-01-01

    Full Text Available Objetivou-se com este artigo analisar o processo de segregação socioespacial nas cidades industriais europeias, com olhar na localização da moradia operária no espaço urbano. A partir desta análise, parte-se para a construção do cenário no Brasil, apontando as origens da habitação social nas cidades industriais, com enfoque na inserção urbana da moradia produzida pela iniciativa privada e pelo Estado até os dias atuais, culminando na produção de interesse social vinculada ao programa habitacional Minha Casa, Minha Vida (MCMV. Por fim, será feita uma análise comparativa da localização das vilas operárias em São José dos Campos, com a inserção urbana dos empreendimentos produzidos pelo Estado.

  17. Cultura da Convergência

    Directory of Open Access Journals (Sweden)

    Rogério Christofoletti

    2008-12-01

    Full Text Available Three ideas would suffice for the reading of “Cultura da Convergência” (Culture of Convergence by Henry Jenkins to be of interest to journalists and researchers in the area: media convergence as a cultural process; the strengthening of an emotional economy which guides consumers of symbolic goods and media creators; the expansion of trans-media narrative forms.

  18. Cultura da Convergência

    Directory of Open Access Journals (Sweden)

    Rogério Christofoletti

    2011-02-01

    Full Text Available Three ideas would suffice for the reading of “Cultura da Convergência” (Culture of Convergence by Henry Jenkins to be of interest to journalists and researchers in the area: media convergence as a cultural process; the strengthening of an emotional economy which guides consumers of symbolic goods and media creators; the expansion of trans-media narrative forms.

  19. L’immagine ricreata. L’esperienza del sacro nell’arte contemporanea seguito da Intervista con James Elkins

    Directory of Open Access Journals (Sweden)

    Marta Gabriele

    2012-01-01

    Full Text Available Il saggio tenta di analizzare il rapporto tra il sacro e l’arte contemporanea alla luce dei recenti studi del professore americano James Elkins. Secondo l’autore del testo On the strange place of religion in contemporary art, l’arte e la religione, in passato, nella reciproca dipendenza inveravano la dimensione costitutiva e originaria dell’uomo; rivelavano la condizione rituale, cultuale, individuale e collettiva che risponde alla primordiale sacralità della vita. L’osmosi ha lasciato il posto alle singole entità non più sovrapponibili nell’era secolarizzata. In un’epoca dominata dalla razionalità della tecnica, per la maggior parte della produzione artistica contemporanea il tema religioso sembra debba essere intrecciato e connaturato al lavoro creativo. Per evitare il rischio di far risultare l’arte come “propaganda” per la religione, deve  apparire, secondo Elkins, la figura dell’artista meditativo e incerto, sia sull’arte che sulla religione: ambiguità, autocritica e ironia devono insinuarsi nell’opera per decretarne l’appartenenza allo statuto delle belle arti. La religione, come il pensiero mitico, il pensiero simbolico e la ragione, fanno parte dell’uomo, sono insite nell’uomo religioso e a-religioso, ugualmente la psicologia, come la religione in passato, si è occupata di “guarire” l’anima, di scoprire la sfera più segreta dell’individualità. La distruzione o meglio la separazione di questi linguaggi ha comportato un indebolimento dell’Io, un allontanamento dal centro, un disorientamento espresso visivamente dall’artista. La perdita di orientamento si traduce in una leggerezza dell’esistenza, fatta di molteplici direzioni, di infinite Weltanschauungen, in cui si incrociano linguaggi, culture, religioni, ideali, valori che generano vie emancipative diversificate, plurime. L’esclusività e l’intimità del rapporto fra chi guarda e l’opera, che genera stupore, meraviglia

  20. Hanna Krall e os caminhos tortos da memória e da identidade

    OpenAIRE

    Piotr Kilanowski

    2013-01-01

    Neste artigo apresentamos a escritora polonesa de origem judaica Hanna Krall por meio da análise literária do seu romance Sublokatorka (A sublocatária).  O romance, com elementos autobiográficos, apresenta a personalidade cindida de uma menina sobrevivente do Holocausto e discute o tema da identidade polonesa, judaica e judaico-polonesa. Através da observação da memória e do processo de criação da memória, a autora mostra a construção da identidade falsa e a repressão da verdadeira, o comport...

  1. A PROBLEMÁTICA DA BIOPIRATARIA: REFLEXÕES A PARTIR DA GEOPOLÍTICA E DOS DIREITOS DA SOCIOBIODIVERSIDADE

    OpenAIRE

    Nunes, Denise Silva; UFSM; Tybusch, Jerônimo Siqueira; UFSM

    2013-01-01

    O bioimperialismo configura-se como uma característica da geopolítica da atualidade, com alicerces nas estruturas da globalização e do capitalismo. Nesse contexto, a problemática da pesquisa consiste na violação dos direitos dos povos locais e a exploração do meio ambiente, em que o atual sistema internacional de propriedade intelectual contribui para a biopirataria dos recursos naturais, por meio da infiltração, em áreas ricas em diversidade biológica, das grandes corporações, multinacionais...

  2. Euclides da Cunha nas vascas da modernidade // Euclides da Cunha in the throes of modernity

    Directory of Open Access Journals (Sweden)

    Walnice Nogueira Galvão

    2017-06-01

    Full Text Available Euclides da Cunha embraced the role of posthumous champion of the backlanders slaughtered by the Brazilian army during the Canudos War. He claimed to have written an “avenging book”. Coming of age at the turn of the century, his work would bear witness to a Modernity that was both historical and aesthetic.

  3. Da ordem. Da cidade. Da literatura: personagens à beira do "ruim do mundo"

    Directory of Open Access Journals (Sweden)

    Eliana Kuster

    2007-12-01

    Full Text Available As grandes cidades estão doentes. Seus sintomas: a quebra da sociabilidade e a irrupção rotineira da violência. Diante disso, ecoa na sociedade um clamor por ordem. No mesmo momento em que a polícia põe a tropa na rua, os literatos criam personagens que dão voz à sensação crescente de que a cidade está deixando de ser uma referência à constituição das identidades urbanas. É a partir da literatura, em especial da obra do escritor Rubem Fonseca, que iremos perscrutar as possibilidades apresentadas pela cidade para o convívio humano.The great cities are sick. Its indications: the sociability in addition and the routine irruption of the violence. Ahead of this, a outcry for order echoes in the society. At the same moment where the policy goes to the street, the writers create personages who give voice to the increasing sensation of that the city is leaving of being a reference to the constitution of the urban identities. It is from literature, in special of the writer Rubem Fonseca, that we will go to investigate the possibilities presented for the city for the human conviviality.

  4. Uso da fluoxetina no tratamento da tricotilomania felina

    OpenAIRE

    Sousa,Marlos Gonçalves; Ferreira,Lilian Stefanoni; Gerardi,Daniel Guimarães; Costa,Mirela Tinucci

    2004-01-01

    A tricotilomania ou alopecia psicogênica felina é uma dermatopatia de origem psicogênica, decorrente da lambedura compulsiva do pelame, realizada pelo gato em situações de estresse. Tal distúrbio decorre de alterações neuro-hormonais e pode associar-se à introdução de novos animais e/ou crianças no ambiente. Além de mudanças de manejo e atitude para com o animal, sugere-se o emprego de ansiolíticos no tratamento da doença. A fluoxetina foi utilizada no tratamento de cinco gatos domésticos com...

  5. Teoria da adequação econômica da conduta: significado econômico da conduta em face da tutela penal antitruste

    OpenAIRE

    Luiz da Silva, Ivan

    2009-01-01

    Essa tese tem por objetivo o desenvolvimento da teoria da adequação econômica da conduta no direito penal econômico. Vale-se de uma abordagem interdisciplinar abrangendo a Economia, o direito econômico e o direito penal. Para alcançar o desiderato a investigação analisou a intervenção do direito penal em face da atividade econômica e, em especial, os fundamentos da tutela penal antitruste, para fins de estabelecer os contornos teóricos necessários à aplicação das premissas fund...

  6. Newton da Costa e a Filosofia da Quase-Verdade

    Directory of Open Access Journals (Sweden)

    Décio Krause

    2009-08-01

    Full Text Available This paper intends to introduce the three issues of Principia which will appear in a sequel honoring Newton da Costa’s 80th birthday. Instead of presenting the papers one by one, as it is common in presentations such as this one, we have left the papers speak by themselves, and instead we have preferred to present to the Brazilian readers, specialty to our students, some aspects of Newton da Costa’s conception of science and of the scientific activity, grounded on the concept of quasi-truth, which he contributed to develop in a rigorous way. Da Costa is known as one of the founding fathers of paraconsistent logic, but his contributions go also to the foundations of physics, theoretical computation, model theory, algebraic logic, lattice theory, applications of non-classical logics to law and technology, etc. But perhaps his main contribution was to provide a basis for the birth of a school of logic in our country (Brazil, serving as teacher and inspiring new researchers for generations. It is a pleasure to have had so enthusiastic acceptation from the editors of Principia to organize these volumes. I would like to thank the contributors and the editors of Principia, specially Prof. Cezar Mortari for his help in organizing the issue.

  7. 75 FR 52292 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Science.gov (United States)

    2010-08-25

    ... Industries GmbH Models DA 40 and DA 40F Airplanes AGENCY: Federal Aviation Administration (FAA), Department... new airworthiness directive (AD) for all Diamond Aircraft Industries GmbH Models DA 40 and DA 40F... received information from Diamond Aircraft Industries GmbH that the Models DA 40 and DA 40F airplanes have...

  8. Aspectos incomuns da paracoccidioidomicose infantil

    Directory of Open Access Journals (Sweden)

    Achiléa Lisboa Bittencourt

    1987-12-01

    Full Text Available São relatados dois casos de paracoccidioidomicose (PCM infantil. Em um deles, a principal manifestação da doença foi tumoração abdominal, simulando linfoma maligno não Hodgkin. O outro apresentou acentuado envolvimento articular, com ruptura da cápsula. Representam o segundo e terceiro casos de PCM infantil observados na Bahia, ambos procedentes de áreas urbanas.The authors present two cases of infantil para-coccidioidomycosis. In one case the main presentation was an abdominal mass that mimicked non- Hodgkin lymphoma. In the other case the child had a joint swelling with rupture of the capsule and the clinical diagnosis was piogenic arthritis. They represent the second and third cases of infantile paracoccidioidomycosis observed in the state of Bahia, all coming from urban areas.

  9. Characterization of Al{sub 2}O{sub 3}:C dosemeters for photon dosimetry using OSL technique; Caracterizacao de dosimetros de Al{sub 2}O{sub 3}:C para dosimetria de fotons utilizando a tecnica OSL

    Energy Technology Data Exchange (ETDEWEB)

    Villani, D.; Almeida, S.B.; Campos, L.L., E-mail: dvillani@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2016-07-01

    The optically stimulated dosimetry (OSL) has gained prominence in clinical and academic applications in Brazil. In this paper, we present results of the characterization OSL dosimeters Al{sub 2}O{sub 3}:C (TLD-500) manufactured by Rexon™ Components and TLD Systems in a RISØ reader, model TL/OSL-DA-20 for dosimetry of high-energy photon beams. All reader parameters, and its variations were evaluated. (author)

  10. Aplicabilidade de Tecnicas de Clusterização e Máquinas de Vetores de Suporte para Previsão de Radiação Solar em Regiões Tropicais

    DEFF Research Database (Denmark)

    da Silva, Hendrigo Batista; Santiago, Leonardo

    A geração de energia solar terá um impacto significativo na matriz de eletricidade nos próximos anos. Assim, a previsão da radiação solar a curto prazo desempenhará um papel estratégico ao dar suporte a um grid elétrico cada dia mais conectado e intermitente. Este artigo estende para regiões...

  11. 1992: a redescoberta da Natureza

    Directory of Open Access Journals (Sweden)

    Milton Santos

    1992-04-01

    Full Text Available Com a presença do homem sobre a Terra, a natureza está, sempre, sendo redescoberta, com a criação da natureza social. É a história de uma rutura progressiva entre o homem e o entorno, acelerada pela mecanização. Mediante a tecnociência, a natureza artificializada alcança seu estágio supremo, onde a natureza e o homem tornam-se reciprocramente hostis. Com a globalização da economia, da política e da cultura, não há mais relações totalizantes entre a sociedade e o meio. A natureza tecnicizada se impõe como algo abstrato, exigindo um discurso. A questão do meio ambiente é um aspecto dessa evolução e reclama um estudo abrangente, para permitir uma correta interpretação. Para alcançar essa interpretação, a universidade deve fugir dos raciocínios técnicos e conformistas e enfrentar o entendimento do mundo como um todo.With man on Earth, Nature is being permanently rediscovered through the creation of social nature. The progressive rupture between man and his surrounding is quickened by mechanization. More recently, with globalization of economy, politics and culture, there are no longer totalizing relations between society and environment. Through technoscience, nature and man become reciprocally hostile. Tecnicized nature emerges as an abstraction that demands a discourse. Environmental problems are only an aspect of this evolution, and ask for a comprehensive approach, in order to reach its correct interpretation. University must fly away from technical and conformicist reasonning and face the understanding of the world as a whole.

  12. A travessia da escrita machadiana

    Directory of Open Access Journals (Sweden)

    Ruth Silviano Brandão

    2000-03-01

    Full Text Available A narração machadiana constrói-se de uma maneira tal que se pode falar de determinadas posições do sujeito da enunciação em relação a seus fantasmas. Assim, é possível pensar num trajeto que se pode chamar de travessia exatamente pelas modificações ocorridas na escritade Machado de Assis até o Memorial de Aires.

  13. Cultura da Convergência

    Directory of Open Access Journals (Sweden)

    Rogério Christofoletti

    2008-12-01

    Full Text Available Três idéias já seriam suficientes para que a leitura de “Culturada Convergência”, de Henry Jenkins, interessasse a jornalistas epesquisadores da área: a convergência midiática como um processo cultural; o fortalecimento de uma economia afetiva que orienta consumidores de bens simbólicos e criadores midiáticos; a expansão de formas narrativas transmidiáticas.

  14. Whole-body magnetic resonance imaging for staging and follow-up of pediatric patients with Hodgkin's lymphoma: comparison of different sequences; Aplicacao da ressonancia magnetica de corpo inteiro para o estadiamento e acompanhamento de pacientes com linfoma de Hodgkin na faixa etaria infanto-juvenil: comparacao entre diferentes sequencias

    Energy Technology Data Exchange (ETDEWEB)

    Nava, Daniel; Oliveira, Heverton Cesar de, E-mail: daniel@centrus.com.b [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. de Diagnostico por Imagem; Luisi, Flavio Augusto; Lederman, Henrique Manoel [Universidade Federal de Sao Paulo (UNIFESP/IOP/GRAACC), SP (Brazil). Inst. de Oncologia Pediatrica. Grupo de Apoio ao Adolescente e a Crianca com Cancer; Ximenes, Andrea Regina da Silveira [Clinica Centrus, Campinas, SP (Brazil)

    2011-07-01

    Objective: to compare the performance of the T1, T2, STIR and DWIBS (diffusion-weighted whole-body imaging with background body signal suppression) sequences in the staging and follow-up of pediatric patients with Hodgkin's lymphoma in lymph node chains, parenchymal organs and bone marrow, and to evaluate interobserver agreement. Materials and methods: the authors studied 12 patients with confirmed diagnosis of Hodgkin's lymphoma. The patients were referred for whole body magnetic resonance imaging with T1-weighted, T2-weighted, STIR and DWIBS sequences. Results: the number of lymph node sites characterized as affected by the disease on T1- and T2-weighted sequences showed similar results (8 sites for both sequences), but lower than DWIBS and STIR sequences (11 and 12 sites, respectively). The bone marrow involvement by lymphoma showed the same values for the T1-, T2-weighted and DWIBS sequences (17 lesions), higher than the value found on STIR (13 lesions). A high rate of interobserver agreement was observed as the four sequences were analyzed. Conclusion: STIR and DWIBS sequences detected the highest number of lymph node sites characterized as affected by the disease. Similar results were demonstrated by all the sequences in the evaluation of parenchymal organs and bone marrow. A high interobserver agreement was observed as the four sequences were analyzed. (author)

  15. Application of the perturbed angular correlation in the investigation of hyperfine interactions in compounds of hafnium, indium and cadmium with F{sup 1-}, OH{sup 1-} and EDTA ligands; Aplicacao da espectroscopia de correlacao angular perturbada na investigacao de interacoes hiperfinas em compostos de hafnio, indio e cadmio com os ligantes F{sup 1-}, OH{sup 1-} e EDTA

    Energy Technology Data Exchange (ETDEWEB)

    Amaral, Antonio Acleto

    2011-07-01

    In this study the hyperfine parameters, including the dynamical nature, Perturbed Angular Correlation (PAC) spectroscopy was used to measure the hyperfine parameters in molecules of ligand compounds in solutions. The measurements were carried out at 295 K and 77 K using {sup 111}In {yields} {sup 111}Cd, {sup 181}Hf {yields} {sup 181}Ta and {sup 111m}Cd {yields}{sup 111}Cd, as probe nuclei. Samples were prepared by adding a small volume of radioactive solution containing the probe nuclei in aqueous solution, buffer solution and ethylenediaminetetraacetic acid (EDTA) used as a ligand with pH 4.3 which correspond to the pH of the saturated EDTA solution and in buffer solution with pH between 9 and 10. The results made possible to understand the impact of each method for PAC measurements. Finally a comparative analysis for the several methods of inserting of the probe nuclei in the sample was made, considering chemical and nuclear aspects. The lack of measurements in this kind of samples justifies the importance of the obtained results. (author)

  16. Optimization of surface network and platform location using a next generation reservoir simulator coupled with an integrated asset optimizer application to an offshore deep water oil field in Brazil; Otimizacao de redes de superficie e locacao da plataforma atraves do acoplamento de um simulador de reservatorios de nova geracao e um otmizador global de ativo: aplicacao em um campo offshore

    Energy Technology Data Exchange (ETDEWEB)

    Campozana, Fernando P.; Almeida, Renato L. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Madeira, Marcelo G.; Sousa, Sergio H.G. de; Spinola, Marcio [Halliburton Servicos Ltda., Rio de Janeiro, RJ (Brazil)

    2008-07-01

    To design, modify, and expand surface facilities is a multidisciplinary task which involves substantial financial resources. It can take months or years to complete, depending on the size and level of detail of the project. Nowadays, the use of Next Generation Reservoir Simulators (NGRS) is the most sophisticated and reliable way of obtaining field performance evaluation since they can couple surface and subsurface equations, thus eliminating the need of lengthy multiphase flow tables. Furthermore, coupling a NGRS with an optimizer is the best way to accomplish a large number of simulation runs on the search for optimized solutions when facilities are being modified and/or expanded. The suggested workflow is applied to a synthetic field which reproduces typical Brazilian offshore deep water scenarios. Hundreds of coupled simulation runs were performed and the results show that it is possible to find optimal diameters for the production lines as well as the ideal location for the production / injection platform. (author)

  17. Application of FMEA-DEA (Failure Modes and Effect Analysis - Data Envelopment Analysis) to the air conditioning system of the control room a nuclear power plant; Aplicacao de FMEA-DEA ao sistema de ar condicionado da sala de controle de uma usina nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Barbosa, Junior, Gilberto Varanda

    2007-03-15

    This dissertation presents the FMEA-DEA analysis application to the air conditioning system of the control room of a nuclear power plant. After obtaining the failure modes, the index associated to the occurrence probability, the severity of the effects and the potential of detention, a priority order is established for the failure modes or deviations. This number is obtained by multiplying the three mentioned index that vary in a natural scale from 1 to 10, where the higher the index, the more critical the situation will be. In this work, it is intended to use a model based on the data envelopment analysis, DEA jointly with the FMEA, to identify the current efficiency of the system and which failure modes or deviations are considered more critical, and by means of the weights attributed for the mathematical modeling to identify which index are contributing more for these deviations. From this identification, improvements can be set, which may consider administrative changes, operator training and so on, thus adding value to the final product. (author)

  18. 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 labels are strategically important for Brazil to amplify the environmental programs to their products because they can facilitate the insertion of these products in the international market, at the same time, that the country gets in the increase of the quality (environmental etc.) and promotes the sustainable development around the world. (author)

  19. 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)

  20. Utilization of response surface for optimization of the production of a biosurfactant with application in the removal of petroleum-derived; Utilizacao de superficie de resposta para a otimizacao da producao de um biossurfactante com aplicacao na remocao de derivado de petroleo

    Energy Technology Data Exchange (ETDEWEB)

    Sarubbo, Leonie A.; Rufino, Raquel D.; Luna, Juliana M.; Farias, Charles B.B.; Santos, Valdemir A. dos [Universidade Catolica de Pernambuco (UNICAP), Recife, PE (Brazil)

    2012-07-01

    The surfactants, amphipathic compounds capable of reducing the surface tension of aqueous media, find application in many industries, especially in the petroleum, cosmetic and food, such as dispersants, emulsifiers and surfactants. With the necessity of environmental preservation, surfactants of micro-organisms origin, in substitution of synthetic surfactants, have become very attractive, since they are biodegradable and less toxic although their production costs are still high because of the substrates used and of the purification processes involved. Considering the need to reduce costs associated with the production of microbial surfactants, a strain of bacteria of the genus Pseudomonas, isolated from the port area was cultured in medium containing low-cost agro-industrial wastes, molasses and corn steep liquor, as substrates according a central composite rotatable design (CCRD) in order to evaluate the influence of independent variables molasses and corn steep liquor concentrations on the response variable surface tension. The biosurfactant was able to reduce the water surface tension from 71 mN / m to values around 27.5 mN / m. The dispersion ability and the capacity of oil removal of the surfactant was demonstrated. The possibility of application of biosurfactants in the remediation of oil polluted environments motivates the advancement of research to develop this technology for effective use in treatment of contaminated soils and waters. (author)

  1. Study of the YBa{sub 2}Cu{sub 3}O-7{sub -{delta}} superconductor application as a low magnetic field sensor; Estudo da aplicacao do supercondutor YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} como sensor de baixo campo magnetico

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, G L; Shigue, C Y; Santos, C A.M. dos; Machado, A J [Faculdade de Engenharia Quimica de Lorena (Faenquil), SP (Brazil). Dept. de Engenharia de Materiais

    2000-07-01

    It has been proposed in the literature a new regime for high critical temperature superconductors labeled as thermally activated flux flow (TAFF). This regime presents a state in which vortex dynamic exhibit a ohmic behavior. The resistivity in this regime is proportional to the applied magnetic field for small current densities. Materials showing this behavior have high disordering and present semiconductor behavior in normal state with broad transition temperature. In this work is presented a systematic study of the magnetoresistance as a function of the applied magnetic field for polycrystalline samples with several thickness. Results of X ray diffraction, resistivity as a function of the temperature, I-V characteristic curves and magnetoresistance are showed. Finally is proposed a calibration curve of the magnetoresistance as a function of the magnetic field, that show the possibility of its use as magnetic field sensor. (author)

  2. Topics to study the integrated use of natural gas in the electricity with industrial focus: a methodology for optimizing its use with application in the Vale do Paraiba region (SP-Brazil); Topicos para o estudo da utilizacao integrada do gas natural na eletricidade com enfoque industrial: uma metodologia para otimizacao de seu aproveitamento com aplicacao na regiao do Vale do Paraiba

    Energy Technology Data Exchange (ETDEWEB)

    Paro, Andre C.; Borelli, Samuel J.S. [PROMON Engenharia SA, Sao Paulo, SP (Brazil); Santos, Edmilson M. [Universidade de Sao Paulo (USP), SP (Brazil). Inst. de Eletrotecnica e Energia; Fadigas, Eliane A. [Universidade de Sao Paulo (USP), SP (Brazil). Escola Politecnica

    2004-07-01

    After the recent announcement on the discovery of a large amount of Natural Gas (NG) in the Santos Field by PETROBRAS, use incentive policies for its consumption and consequent growth participation in the national energy matrix gained strength This paper intends to present an efficient use optimization methodology for the NG integrated to Electricity with focus on it's industrial use under the concepts of Integrated Resources Planning (IRP). Thus, the topics about NG utilization in cogeneration plants are analyzed, showing it's utilization on Electric Energy (EE) and Process Heat (Steam) supply. Its contribution to the distributed Electric Energy generation, which brings the installed generation power closer to the consumer centers and mitigates energy transmission losses, are also presented. The IRP concept is applied on the integration between industrial use and other uses of NG and on the detailing of its influence on the electric sector. Finally, a case study is presented, applying the presented methodology for the use of NG in the industry of 'Vale do Paraiba' Region (SP-Brazil), due to its industrial economy condition and easy access to the Brazilian proved reserves geographic condition. (author)

  3. Study of the oxygen reduction reaction using Pt-Rare earths (La, Ce, Er) electrocatalysts for application of PEM fuel cells; Estudo da reacao de reducao do oxigenio utilizando eletrocatalisadores a base de Pt-terras raras (La, Ce, Er) para aplicacao em celulas a combustivel tipo PEM

    Energy Technology Data Exchange (ETDEWEB)

    Gomes, Thiago Bueno

    2013-07-01

    The complexity of the oxygen reduction reaction (ORR) and its potential losses make it responsible for the most part of efficiency losses at the Fuel Cells. For this reaction the electrocatalyst witch is most appropriated and shows better performance is platinum, a noble metal that elevates the cost, raising barriers for Fuel Cells technology to enter the market. First this work focuses on reducing the amount of platinum used in the cathode, by being replaced by rare earths. The most common methods of synthesis involves a large amount of steps and this work proposed to prepare the electrocatalyst through a simpler way that would not take so many steps and time to be done. Using an ultrasound mixer the electrocatalyst was prepared mixing platinum supported on carbon black and the rare earths lanthanum, cerium and erbium oxides to be applied in a half-cell study of the ORR. The Koutecky-Levich plots shows that among the electrocatalysts prepared the Pt80Ce20/C had the catalytic activity close to the commercial BASF platinum on carbon black, suggesting that the reaction was taken by the 4-electron path. As found in some works in literature, among the rare earth used to study the ORR, cerium is the one witch shows the better performance because it is able to store and provide oxygen. This feature is of great interest for the ORR because this reaction is first order to the oxygen concentration. Results show that is possible to reduce the amount of platinum maintaining the same electrocatalyst activity. (author)

  4. Application of low-dose gamma irradiation to extend the shelf life of minimally processed Red Beet (Beta vulgaris sp. vulgaris L.), cv. Early Wonder; Aplicacao de baixas doses de radiacao gama para extensao da vida util de beterraba vermelha (Beta vulgaris ssp. vulgaris L.), cv. Early Wonder, minimamente processada

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez, Nilber Kenup

    2006-07-01

    This study was aimed at investigating the effects of low-dose gamma irradiation on shelf-life extension and phyto sanitary safety of minimally processed red beet with basis on physicochemical; microbiological; chemical and sensory analyses. The samples (Beta vulgaris ssp. vulgaris L.), Early Wonder cultivar, were cultivated in the experimental area of the Horticulture Sector of the Departamento de Fitotecnia of the Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Seropedica, RJ, as part of two experiments performed during the second semester of 2005. In each experiment, 1200 plants (40 per linear meter of terrain) were sowed. Physicochemical analyses (fresh mass; length; average diameter and total soluble solids) of the edible part of the red beets (their tuberous roots) were periodically carried out in order to assess the most appropriate time for harvest by monitoring the development of the plants. Those times were found to be 104 and 73 days after transplanting, respectively. The harvested edible part of the roots were minimally processed and separated in two groups: (1) gamma irradiated (with doses of 0.5; 1.0 and 1.5 kGy) and (2) non-irradiated (control). All samples were stored at 8 degree C. Microbiological analyses were performed during the storage period (22 and 21 days, for experiments 1 and 2, respectively) in order to evaluate the phyto sanitary quality of the samples (Salmonella sp.; coliforms and total count of mesophilic aerobic and lactic acid bacteria). The samples irradiated with 1.0 and 1.5 kGy were found to remain appropriate for consumption for 21 days, as compared to only 7 days for the control. Monitoring of chemical composition was also performed and included the determination of saccharose; glucose; fructose and vitamins B1 and B2. No difference was found between the concentrations of those vitamins in irradiated and control samples at the end of the storage period, whereas significant changes in sugar contents were detected independently of the dose. In addition, physicochemical analyses investigated the evolution of pH; total acidity; total soluble solids and ascorbic acid throughout storage. Samples from experiment 2 were also subjected to sensory analyses for overall appearance and aroma at 4 different post-irradiation times. The results indicated that the samples irradiated with 1.0 and 1.5 kGy remained good for consumption for 20 days. Therefore it can be concluded that the application of those doses extended the shelf life of the samples without harming their nutritional and sensory quality. Finally, the results indicate that the dose of 1.0 kGy is the most appropriate for the conservation of red beet among those tested. (author)

  5. Alteration in the absorption cell dose arising from the use of gold nanoparticle associated with the radionuclides of clinical application: simulate study; Alteracao na absorcao de dose celular decorrente da utilizacao de nanoparticulas de ouro associadas a radionuclideos de aplicacao clinica: estudo simulado

    Energy Technology Data Exchange (ETDEWEB)

    Culik, Lucas; Schwarcke, Marcelo, E-mail: mschwarcke@unifra.br [Centro Universitario Franciscano (UNIFRA), Santa Maria, RS (Brazil)

    2015-12-15

    The present work is a proposal to assess, which is the efficiency in the use of radionuclides of clinical application in nuclear medicine service conjugated system with gold nanoparticles.To obtain the results needed for the interpretation of this combination, was using the Monte Carlo simulation code PENELOPE, where was the main structures of a simulated eukaryote cell. To simulate irradiation on cellular structures was used the emission spectrum of main radionuclide clinical use in nuclear medicine service. The material containing gold nanoparticles was modeled according the stoichiometric proportions found in the literature. The results obtained, present for the simulated energies to smaller bodies than 2,0μm, no substantial response to the use of nanoparticles in the reinforcement of locally absorbed dose. Is observed a small decrease in locally dose absorbed due to emission of charged particles, it is believed that causes an increase in the emission secondary range to be placed outside the study body. But this effect is small when comparing to the increase of energy absorbed due to interaction with the bodies containing nanoparticles, so demonstrating an increase in the locally dose absorbed. Being observed that there is an increase in dose absorbed locally due to the use of nanoparticles. For protocols based on the principle of target radionuclide therapy, the imaging of the treaty sit will be affected in their statistical accuracy, since the gamma radiation will be attenuated by the nanoparticles present in the material. Being necessary to know if this increase in the locally absorbed dose has greater importance in the treatment protocol than the image of the absorption of the radioactive material in the target organ. (author)

  6. Application of Monte Carlo method in study of the padronization for radionuclides with complex disintegration scheme in 4{pi}{beta}-{gamma} coincidence System; Aplicacao do metodo de Monte Carlo no estudo da padronizacao de radionuclideos com esquema de desintegracao complexos em sistema de coincidencias 4{pi}{beta}-{gamma}

    Energy Technology Data Exchange (ETDEWEB)

    Takeda, Mauro Noriaki

    2006-07-01

    The present work described a new methodology for modelling the behaviour of the activity in a 4{pi}{beta}-{gamma} coincidence system. The detection efficiency for electrons in the proportional counter and gamma radiation in the NaI(Tl) detector was calculated using the Monte Carlo program MCNP4C. Another Monte Carlo code was developed which follows the path in the disintegration scheme from the initial state of the precursor radionuclide, until the ground state of the daughter nucleus. Every step of the disintegration scheme is sorted by random numbers taking into account the probabilities of all {beta}{sup -} branches, electronic capture branches, transitions probabilities and internal conversion coefficients. Once the final state was reached beta, electronic capture events and gamma transitions are accounted for the three spectra: beta, gamma and coincidence variation in the beta efficiency was performed simulating energy cut off or use of absorbers (Collodion). The selected radionuclides for simulation were: {sup 134}Cs, {sup 72}Ga which disintegrate by {beta}{sup -} transition, {sup 133}Ba which disintegrates by electronic capture and {sup 35}S which is a beta pure emitter. For the latter, the Efficiency Tracing technique was simulated. The extrapolation curves obtained by Monte Carlo were filled by the Least Square Method with the experimental points and the results were compared to the Linear Extrapolation method. (author)

  7. Study of {sup 137}Cs e {sup 60}Co sorption in sediments from Saco de Piraquara de Fora, Angra dos Reis and its application for environmental monitoring; Estudo da sorcao de {sup 137}Cs e {sup 60}Co em sedimentos do Saco de Piraquara de Fora em Angra dos Reis e sua aplicacao para o monitoramento ambiental

    Energy Technology Data Exchange (ETDEWEB)

    Ferreira, Ingryd Marques

    2016-08-01

    Both the suspended solid particles and the bed sediments sorb radionuclides, released in water systems. Sorption is usually represented mathematically by the distribution coefficient that is based in equilibrium between phases. Here the adsorption/desorption kinetics of {sup 60}Co and {sup 137}Cs in sea water were simulated by batch equilibrium experiments with sediments in two points (PT - 01, PT - 02) from Saco de Piraquara de Fora inlet (SPF). For both radionuclides, partition coefficient values (Kd) for the sampling point PT - 02 (509 and 385 L/kg for {sup 60}Co and {sup 137}Cs, respectively) were higher than the values determined for PT - 01 one (426 and 182 L/kg for {sup 137}Cs and {sup 60}Co, respectively). The higher values of Kd of PT-02 reflects the higher CEC (71,4 cmolc.dm{sup 3}) and content of mud < 63 μm (87%) when compared to PT-01 (CEC of 39,5 cmol{sub c}.dm{sup 3}) and mud (55%). In comparison with the values reported in the literature, the found Kd values are low, which may be related to the predominance of kaolinite, which is a clay of low sorption capacity. The Kd values with an increase in temperature of 23 deg C to 27 deg C were similar ({sup 60}Co in PT-02 and {sup 137}Cs in both sediment) or 27 ° C values were higher ({sup 60}Co the PT-01). With increasing temperature to 31 °C Kd values for the two radionuclides showed a decrease. However, increasing temperature increases the desorption of the two radionuclides for both sediments The sorption process is spontaneous and favorable for both sediments and the model of sorption can be fitted by both Freundlich and Langmuir sorption isotherms. The maximum amount of {sup 60}Co that can be sorbed on sediments were 1,64 10{sup -5} moles/g (4,12 10{sup 10} Bq/g) and 2,79 10{sup -5} moles/g (7,03 10{sup 10} Bq/g) to PT-01 and PT-02, respectively, and of {sup 137}Cs 1,99 10{sup -6} moles/g (9,70 10{sup 8} Bq/g) and 6,60 10{sup -6} mol/g (2,87 10{sup 9} Bq/g ) to PT-01 and PT-02. Two areas in SPF can potentially accumulate {sup 137}Cs: sediments located near the effluent discharge and the area located north of this site. An area in the interface of SPF and the bay of Ribeira would potentially the best accumulated of {sup 60}Co. (author)

  8. Decision making process in oil exploration and production projects: a systemic approach by means of fuzzy logic theory application; Processo de tomada de decisao em projetos de exploracao e producao de petroleo: uma abordagem sistemica com aplicacao da teoria de logica fuzzy

    Energy Technology Data Exchange (ETDEWEB)

    Brana, Juan Pablo

    2008-12-15

    Oil is a non-renewable resource and maximizing the efficiency of its use is of the utmost importance, not only to private companies and the generation of their profit, but also to governments and their energy, economic and territorial planning. The aims of this thesis are, on the one hand, to breakdown, by means of a systemic approach, the complexity of the decision-making process in oil exploration and production projects (E and P), explaining, whenever possible, the theories and relationships that underlie their modeling contexts, and, on the other, to create a model - in the case of a specific E and P problem - to support the decision-making process, using the fuzzy logic theory. The variables analyzed include the probability of the exploration process achieving success, the size of reserves, the level or burden of taxation and the price of oil. In the case of the latter, the price of oil, the elements necessary for the elaboration of different scenarios have been provided. Finally, this model has been applied to a case study, providing continuity to previous work and discussing the results obtained. (author)

  9. Study of application of protective measures for the public and remediation of contaminated areas in case of nuclear and / or radiological accidents in Brazil; Estudo da aplicacao de medidas de protecao para o publico e de remediacao de areas contaminadas em caso de acidentes nucleares e/ou radiologicos no Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Diogo Neves Gomes da

    2011-07-01

    Since the radiological accident in Goiania in 1987, the IRD (Institute of Radiological Protection and Dosimetry - IRD / CNEN) has been developing tools to support decision-making processes after a nuclear or radiological accident which leads to an environmental contamination and to an exposure of individuals the public These processes include the establishment of a supporting multicriteria model, which involves the application of protective and remediation measures of contaminated areas in tropical environments. In this study, it was performed an evaluation of the efficiency of these measures in order to determine the consequences of their implementation, based on results obtained from the code SIEM (Emergency Integrated System), which constitutes an environmental mode1 developed at IRD to simulate this type of accident. In order to perform this evaluation, it was first developed a database containing descriptions of various protection/remediation measures, which could be applied nationwide. Afterwards, some basic scenarios were established, considering the environmental, housing and food characteristics of the population of the vicinity of the nuclear power plants in Angra dos Reis (state of Rio de Janeiro). Thus, the accident simulations were carried out separately containing releases of {sup 137}Cs, {sup 90}Sr and 131 I. The results showed that the dose reduction varies according to the extent and the timing of the remediation measure applied. Although it is possible to establish some basic guidelines, generic solutions are not recommended, since the resulting doses are highly dependent on the actual situation. Any decision-making process should be made case by case, according to the actual conditions of the affected area and to the occupation characteristics and use of the affected areas, considering the characteristics of the source term of contamination, the time of the year in which the accident occurs, the local agricultural practices and food habits of real people affected. For both types of area, it was observed that it would be appropriate to assign the security measures according to three criteria: (i) its efficiency in reducing the doses in the first year, (ii) its efficiency in reducing the dose of long-term and (iii) the effect of delay in implementing the measure efficiency in reducing doses. Finally, the results of this work will be complemented in the database in order to provide support for multi-criteria analysis in decisionmaking process after this type of accident. (author)

  10. Proceedings of the 24. National seminar on the rational use of energy and exposition of equipment and services and 7. Binational seminar on energy saving [Selected Papers]; 24. Seminario nacional sobre el uso racional de energia y exposicion de equipos y servicios y 7. Seminario binacional de ahorro de energia. Memoria Tecnica. [Ponencias seleccionadas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    This document contains the technical briefings of the 24. National Seminar on the rational use of energy, and exhibition of the equipment and services and the 7. Binational seminar on energy saving, organized by the Asociacion de Profesionistas y Tecnicos en Aplicacion Energetica (ATPAE), in Ciudad Juarez, Chihuahua, Mexico, from November 9 to 11, 2005. This seminar dealt with subjects such as: electrical energy saving, energy distribution, solar energy, energy saving in compressed air, biomass, administration and control of the demand of the electrical energy, bioclimatic architecture, use of the compressed natural gas, renewable energy, co-generation, qualification and consultancy for the intelligent use of the energy in PyMES. [Spanish] Este documento contiene la memoria tecnica del 24 Seminario Nacional sobre el uso racional de energia, y exposicion de los equipos y servicios y el 7 Seminario binacional de ahorro de energia, organizado por la Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), en Ciudad Juarez, Chihuahua, Mexico, del 9 al 11 de noviembre del 2005. Este seminario trato temas tales como: ahorro de energia electrica, distribucion de la energia, energia solar, ahorro de energia en aire comprimido, biomasa, administracion y control de la demanda de la energia electrica, arquitectura bioclimatica, uso del gas natural comprimido, energia renovable, cogeneracion, capacitacion y consultoria para el uso inteligente de la energia en las Pymes.

  11. Proceedings of the 22 National seminar on the rational an efficient use of energy and exposition of equipment and services. [Selected Papers]; 22. Seminario nacional sobre el uso racional y eficiente de la energia y exposicion de equipos y servicios. Memoria Tecnica. [Ponencias seleccionadas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This document contains the proceedings of the 22 national seminar on the rational and efficient use of energy and exposition of equipment and services, organized by the Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), in Mexico, D.F., from the 25 to the 29 of August of 2003. This Seminar covered subjects such as: Energy saving in the power sector, power efficiency in industrial processes and practical developments, practical cases of energy saving in industry, energy saving in constructions, transport, utilization of renewable energies and the environment. [Spanish] Este documento contiene la memoria tecnica del 22 seminario nacional sobre el uso racional y eficiente de la energia y exposicion de equipos y servicios, organizado por la Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), en Mexico, D.F., del 25 al 29 de agosto de 2003. Este seminario trato de temas tales como: Ahorro de energia en el sector energetico, eficiencia energetica en procesos industriales y desarrollos practicos, casos practicos de ahorro de energia en la industria, ahorro de energia en edificaciones, transporte, aprovechamiento de energias renovables y ambiente.

  12. The major histocompatibility complex genes impact pain response in DA and DA.1U rats.

    Science.gov (United States)

    Guo, Yuan; Yao, Fan-Rong; Cao, Dong-Yuan; Li, Li; Wang, Hui-Sheng; Xie, Wen; Zhao, Yan

    2015-08-01

    Our recent studies have shown that the difference in basal pain sensitivity to mechanical and thermal stimulation between Dark-Agouti (DA) rats and a novel congenic DA.1U rats is major histocompatibility complex (MHC) genes dependent. In the present study, we further used DA and DA.1U rats to investigate the role of MHC genes in formalin-induced pain model by behavioral, electrophysiological and immunohistochemical methods. Behavioral results showed biphasic nociceptive behaviors increased significantly following the intraplantar injection of formalin in the hindpaw of DA and DA.1U rats. The main nociceptive behaviors were lifting and licking, especially in DA rats (PDA rats were significantly higher than those in DA.1U rats in both phases of the formalin test (PDA rats was significantly higher than that of DA.1U rats (PDA was greater than that in DA.1U rats (PDA rats was significantly higher than that in DA.1U rats in the respective experimental group (PDA and DA.1U rats exhibited nociceptive responses in formalin-induced pain model and DA rats were more sensitive to noxious chemical stimulus than DA.1U rats, indicating that MHC genes might contribute to the difference in pain sensitivity. Copyright © 2015 Elsevier Inc. All rights reserved.

  13. Da onda da gestão da qualidade a uma filosofia da qualidade da gestão: Balanced Scorecard promovendo mudanças

    Directory of Open Access Journals (Sweden)

    Andréa Cavalcanti Correia Lima

    2004-06-01

    Full Text Available No final da década de 80 a Gestão da Qualidade Total (GQT era apresentada como capaz de resolver todos os problemas e atender a todas as necessidades da gestão das organizações. Buscando solucionar problemas de gestão não equacionados pela GQT, muitas organizações começam a adotar o Balanced Scorecard (BSC. Uma questão ainda não discutida com profundidade no mundo acadêmico é a viabilidade de integração desses dois modelos. O presente artigo discute a possibilidade de integração dessas duas ferramentas, verificando as melhorias que podem alcançar, principalmente no gerenciamento da estratégia da organização. Assim sendo, realizou-se estudo de caso no Caesar Park Hotel Fortaleza (CPHF, empresa que vêm adotando com sucesso os dois modelos. A pesquisa revela que é possível integrar os princípios da GQT com os do BSC, à medida que os fundamentos de ambos se complementam, sendo assim a utilização conjunta das ferramentas propicia melhor gerenciamento da estratégia da organização.In recent years, many organizations have been managed according to the principles of Total Quality Management (TQM, which became known around the globe in the 1980's, when looking for explanations for the so-called "Japanese miracle". TQM was presented as being capable of solving all problems and attending to all company management needs, a stage that seems outdated now. In the search for a model that would allow them to analyze and follow up the implementation of organizational strategies, without remaining limited to Quality indicators, many companies started to adopt the Balanced Scorecard (BSC. Companies using TQM question whether it is viable together with the BSC. In order to contribute to a solution to this question, this article discusses the possibility of aligning these two tools. Therefore, a case study was carried out at the Caesar Park Hotel Fortaleza, a company that implanted TQM in 1997 and started to adopt the BSC in 2000. The

  14. Uso dello spazio da parte dello scoiattolo comune (Sciurus vulgaris in bosco di conifere

    Directory of Open Access Journals (Sweden)

    M. Adamo

    2003-10-01

    Full Text Available Nell?ambito di un progetto di ricerca sull?ecologia dello scoiattolo comune in boschi di conifere delle Alpi, abbiamo avviato uno studio con la radiotelemetria per indagare i fattori che influiscono sull?uso dello spazio da parte degli animali. I risultati riportati nel presente lavoro si riferiscono a due anni successivi caratterizzati da una diversa disponibilità alimentare. L?area di studio si trovava nel Parco Nazionale del Gran Paradiso, in Val di Rhemes, all?interno di una pecceta subalpina (Picea abies 85%, Larix decidua 11%, alberi morti 4%. La produzione energetica del bosco (semi delle conifere è stata valutata moltiplicando il n. di piante per ettaro x il n. medio di coni prodotti (contati su 60 alberi campione x il n. medio di semi per cono x il peso medio dei semi, trasformando poi la biomassa in Mj. Le catture sono state effettuate tre volte l?anno nel 2001 e 2002 con 30 trappole incruente Tomahawk tipo 201. Diciotto scoiattoli nel 2001 e 13 nel 2002 sono stati dotati di radiocollare (PD-2C Holohil Systems Ltd. e seguiti in estate e autunno. Sono stati calcolati i seguenti parametri: home range MCP 100%, MCP 95% (animali con singole escursioni, 100% Cluster-based (animali che usavano differenti aree di attività; stime delle core-area mono e multinucleari effettuate con la tecnica della Cluster Analysis 85%; sovrapposizione delle core-area. Nel 2001, all?inizio dell?estate, 4 maschi su 8 e 7 femmine su 8 sono emigrati nella valle adiacente o a quote più basse. Nel 2002, tutti gli individui sono rimasti residenti. La dimensione media degli home range stagionali nel 2001 è stata di 83,30 ± 48,72 ha (n = 30 contro 31,04 ± 16,65 ha (n = 19 nel 2002, la media delle core-area è stata 18,18 ± 17,74 ha nel 2001 e 9,36 ± 5,40 ha in 2002 (Kruskal-Wallis ANOVA: home range H = 22,6; g.l. = 1, P < 0,0001; core-area H = 4,55, g.l. = 1, P = 0,033. La sovrapposizione delle core-area maschio/femmina e femmina/maschio

  15. Neutron activation analysis applied to the determination of trace elements in human nails; Aplicacao do metodo de analise por ativacao com neutrons a determinacao de elementos traco em unhas humanas

    Energy Technology Data Exchange (ETDEWEB)

    Aguiar, Amilton Reinaldo

    2001-07-01

    There is a considerable interest in the determination of trace elements in human nails in order to use this tissue as a monitor of nutritional and healthy status of individuals, of occupational exposure diseases and of the environmental contamination. In this work, instrumental neutron activation analysis was applied to determine trace elements in finger nail clippings to make comparisons between the elemental concentrations obtained in nails from healthy individuals of a control group and those from cystic fibrosis (CF) patients. Firstly, a protocol for sample collection and preparation for analysis was established. Finger and toe nail samples from CF patients were collected at the Instituto da Crianca of Medicine School, University of Sao Paulo, SP. The nail samples from control group were collected from healthy adults and from children living in Sao Paulo city, SP. These samples were cleaned by stirring them witha a diluted Triton X100 solution and then by washing with distilled water and acetone. The analytical procedure consisted of irradiation nail samples and elemental standards in the IEA-R1m nuclear reactor under thermal neutro flux of about 10{sup 12} n cm{sup -2} s{sup -1}, for short and long period irradiations. The activities of the radionuclides were measured using a gamma-ray spectrometer comprising an hyperpure Ge detector and associated electronic system. The biological reference materials Bovine Liver 1577b and Oyster Tissue 1566a, both from National Institute of Standards and Technology, USA were analysed in order to evaluate the accuracy and precision of the results. The analysis of variance (ANOVA) and F-test at the significance level of 5% were used to make a comparison between the sets of results obtained in this work. In the comparison of the results obtained for finger and toe nails from CF patients, the Br concentrations were higher in finger nails that those obtained for toe nails. For the control group of children, the finger nails

  16. Use of the Neutron Die-Away Technique to Test Control Rod Effectiveness Theories; Emploi de la Methode d'Absorption des Neutrons pour Verifier les Theories sur l'Efficacite des Barres de Commande; Ispol'zovanie metoda spada potoka nejtronov dlya proverki teorij ehffektivnosti reguliruyushchikh sterzhnej; Aplicacion de la Tecnica de Extincion Neutronica a la Verificacion de las Teorias sobre la Eficacia de las Barras de Control

    Energy Technology Data Exchange (ETDEWEB)

    Perez, R. B. [University of Florida, Gainesville, FL (United States); De Saussure, G.; Silver, E. G. [University of Florida, Gainesville, FL (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States)

    1964-04-15

    posible referir los resultados a un conjunto experimental limpio y simple. El metodo se basa en el hecho de que, en un experimento de extincion neutronica del tipo descrito por los autores, el laplaciano del conjunto esta relacionado con la constante de desintegracion del modo fundamental por la formula: B{sup 2} = ({lambda} - {lambda}{sub a})/D donde {lambda}{sub a} es la inversa del periodo de los neutrones en el moderador (s{sup -1}) y D es la constante de difusion (cm{sup 2}/s). En estos experimentos se usaron como conjuntos moderadores prismas rectangulares de berilio, de diversos tamaflos, constituidos mediante pequenos bloques (de 2,54 cm de altura y base cuadrada de 7,3 cm de lado). Se utilizaron tres tipos de barras de control de cadmio: barras finas de 0,476 cm de diametro, barras de seccion cruciforme y barras 'gruesas' huecas de 7,3 x 7,3 cm de seccion transversal. Se verificaron los siguientes planteos teoricos: 1. Nordheim-Scalettar. 2. Hurwitz-Roe. 3. Una clave numerica de difusion. Se calculo el efecto de un absorbente cruciforme utilizando la tecnica de transformacion conformai de Hurwitz-Roe y se hallo para el laplaciano el valor 0,0188 cm{sup -2}, mientras que el resultado experimental respectivo era 0,0187 {+-} 0,0006 cm{sup -2}. En el caso de las barras 'gruesas' , los resultados obtenidos con el procedimiento Nordheim-Scalettar y con la clave de difusion superaron a los resultados experimentales en un 10%, aproximadamente. No obstante, la interaccion entre las barras gruesas se calculo correctamente por ambos metodos. Para las barras delgadas, el procedimiento de Nordheim-Scalettar da resultados sumamente exactos. No es sorprendente la discrepancia observada en el caso de las barras gruesas pues es facil que surja cuando se aplica la teoria de la difusion para describir el efecto de los absorbentes cuyas secciones transversales tienen dimensiones de orden comparable al recorrido libre medio de los neutrones en el moderador. Los autores efectuan

  17. EM TORNO DA GUERRA E DO PACIFISMO

    Directory of Open Access Journals (Sweden)

    Betty Bernardo Fuks

    2013-02-01

    Full Text Available O artigo apresenta algumas das principais reflexões de Freud sobre os temas da guerra e do pacifismo.  Partindo do texto “Da guerra e morte. Temas da atualidade”, escrito  durante a Primeira Guerra Mundial,  a autora mostra de que modo  Freud estabeleceu a incursão da psicanálise no campo da política e de que modo esta conexão exige do analista  manter sua escuta voltada  para a singularidade contemporânea.  Conclui que  em relação a dimensão catastrófica do psiquismo, que podemos observar hoje, por exemplo, na passagem ao ato violento; na delinqüência; na toxicomania; no totalitarismo que se coloca acima da lei e no fundamentalismo como  instrumento da lei divina etc,  importa salientar que a existência desses  novos modos de expressão dos sintomas, põe à prova o devir da psicanálise.  Lança, por fim, a aposta: o futuro da psicanálise depende da responsabilidade do analista em manter seu trabalho voltado à dinâmica psíquica do sujeito, individual ou coletivo, sem abrir mão do rigor dos conceitos freudianos.

  18. A metodologia de projecto na aprendizagem da biodiversidade e geodiversidade na praia da concha

    OpenAIRE

    Rosa, Marina Maria Filipe

    2012-01-01

    Dissertação de mestrado em Biologia e de Geologia, apresentada ao Departamento de Ciências da Terra e ao Departamento de Ciências da Vida Este trabalho consistiu na implementação e avaliação da metodologia de projeto no estudo da Biodiversidade e Geodiversidade na Praia da Concha, Portugal Central, dando ênfase ao trabalho prático, através de uma aula de campo e de aulas laboratoriais. O trabalho foi realizado numa escola da Marinha Grande, com 11 alunos do 10º ano de escolaridade. Sendo a...

  19. Vulnerabilidades sociais e juvenil nos mananciais da zona sul da cidade de São Paulo

    OpenAIRE

    Borelli,Elizabeth

    2012-01-01

    http://dx.doi.org/10.1590/S1414-49802012000100006 Este artigo é um produto parcial da pesquisa “Reflexos da Vulnerabilidade Socioambiental nas Manifestações Musicais dos Jovens Paulistanos da Periferia”, identificando como recorte geográfico a periferia da Zona Sul da cidade de São Paulo. Trata-se de uma região que começou a se formar devido à ocupação populacional desordenada em áreas de manancial, onde a vulnerabilidade social é agravada por situações de risco e degradação ambiental, da...

  20. Fresnel: O formulador matemático da teoria ondulatória da luz

    OpenAIRE

    Bassalo, José Maria Filardo

    1988-01-01

    Neste artigo, apresentamos alguns aspectos da vida de Fresnel, engenheiro e físico francês que se notabilizou pela formulação matemática da teoria ondulatória da luz, e cujo bicentenário de nascimento transcorre neste ano de 1988. Realçamos, neste trabalho, suas principais pesquisas relacionadas com o estudo da difração, dupla-refração e reflexão da luz, nas quais utilizou a idéia revolucionária de transversalidade da onda luminosa para deduzir equações, as quais explicaram alg...

  1. A escrita da dor : testemunhos da ditadura militar

    OpenAIRE

    Fabricio Flores Fernandes

    2008-01-01

    Resumo: Esta pesquisa tem como objeto de estudo as obras testemunhais de Luiz Roberto Salinas Fortes, Retrato calado (1988), e de Flávio Tavares, Memórias do esquecimento (1999), em que os autores narram acontecimentos vividos durante os anos da ditadura militar no Brasil (1964-1985), entre os quais suas passagens por sessões de tortura. Exploram-se, neste trabalho, os motivos por que os relatos apresentam determinadas características estruturais, tais como a cisão do narrador ante a descriçã...

  2. EFEITOS DA LARGURA DA FAIXA DE CAPINA NA CULTURA DA MAMONA

    Directory of Open Access Journals (Sweden)

    EDISON MARTINS PAULO

    1997-01-01

    Full Text Available Estudou-se a influência de diferentes larguras de faixas de controle de plantas daninhas sobre a altura, o número de racemos e a produção de grãos da mamoneira (Ricinus communis L. var. IAC-80, objetivando-se determinar a área vegetada entre as linhas de plantio. Os experimentos foram desenvolvidos em Adamantina, na Estação Experimental de Agronomia da Alta Paulista do Instituto Agronômico (IAC, nos anos agrícolas 1989/90, 1990/91 e 1991/92. O delineamento estatístico adotado foi o de blocos ao acaso com quatro repetições e oito tratamentos. Os tratamentos consistiram em faixas com 0,0; 0,5; 1,0; 1,5; 2,0; 2,5 e 3,0 m de largura capinadas ao longo da linha de plantio e mantidas sempre livres de plantas daninhas; além dessas, mateve-se uma faixa de 1,0 m de largura e mesmo procedimento, na qual a comunidade infestante das entrelinhas era roçada manual- mente sempre que a altura média de 0,3 m era atingida. Concluiu-se que faixas de capina menores do que 1,0 m aplicadas sobre a linha de plantio da cultura diminuíram a produção de grãos, o número de racemos e a altura da mamoneira.Three experiments were carried out in Adamantina at the Experimental Station of Agronomy of Alta Paulista, Instituto Agronômico (IAC, State of São Paulo, Brazil, on a Dark Red Latosol during 1989-1992, in order to study the effects of different row widths covered by weeds on the yield, height and number of racemes of IAC-80 castor bean cultivar. Hoed rows of 0.0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 m wide were studied. An extra treatment had the entire plot covered with weeds mantained at 0.3 m height. The row space used was 3.0 x 1.0 m and the plots were 9.0 x 5.0 m. The experiment was set in a randomized complete block design with four replications. Hoeing row width of 1.0 m or less reduced raceme emission, plant height and seed yields.

  3. O potencial da imagem televisiva na sociedade da cultura audiovisual

    Directory of Open Access Journals (Sweden)

    Juliana L. M. F. Sabino

    Full Text Available Resumo A cultura audiovisual vem cada vez mais ganhando espaço, e os avanços tecnológicos contribuem, vertiginosamente, para o seu desenvolvimento e sua abrangência. Assim, este estudo tem como temática a cultura audiovisual, e como objetivo de pesquisa, discutir a importância das imagens na televisão. Para tanto, selecionamos um exemplo de propaganda televisiva observada no ano de 2006, que inspirou uma reflexão crítica sobre a importância das linguagens híbridas na televisão, ilustrando a interferência dessas na produção do sentido na mensagem televisiva. Como referencial teórico e metodológico, utilizamos as concepções de imagem e linguagens híbridas de Lúcia Santaella. A partir da análise da propaganda ora proposta concluímos que sua constituição é mais icônica do que de verbal, mas que se insere numa concepção dialógica, constituindo-se, portanto, por meio de um processo criativo de produção de significados.

  4. Cultura digital: odisseia da tecnologia e da ciência

    Directory of Open Access Journals (Sweden)

    Joana Coeli Ribeiro Garcia

    2011-12-01

    Full Text Available Rememora a história da tecnologia, culminando na moderna cultura digital, associando-a a uma odisseia. Contextualiza a necessidade do homem de registrar seus conhecimentos para compartilhá-los com outras gerações, o que começou com o verbo, logo, a pedra, depois, a argila, a madeira, peles, papel e, enfim, o ciberespaço. Discorre sobre vantagens da tecnologia na cultura digital e contradições na aceitação do meio eletrônico, tais como as limitações digitais e a facilidade com que se realiza plágio e se burla o direito autoral. Apresenta o letramento digital como elemento para utilização das novas tecnologias e considera que as metáforas biblioteca, ciberespaço, cibercultura, cultura digital e hipertexto serviram de inspiração para o texto, assim como, a Odisseia de Homero, que conta a viagem de Ulisses, que percorre e conhece vários costumes e tormentas. A coexistência com as mudanças serve de vivência para os desafios ou o que ainda há por ser feito.

  5. O PAPEL DA ÁFRICA NA NOVA ROTA DA SEDA MARÍTIMA

    Directory of Open Access Journals (Sweden)

    Diego Pautasso

    2017-01-01

    Full Text Available O objetivo do presente artigo é analisar o lugar da África na construção da Nova Rota da Seda Marítima. Este é justamente um dos vetores do ambicioso projeto chinês de integração da Ásia, Europa e África, lançada em 2013 sob título de Iniciativa OBOR (One Belt, One Road. Na medida que os desafios da reconstrução nacional são superados, a China torna-se mais assertiva e dá forma à sua estratégia de inserção mundial. Nesse sentido, a Nova Rota da Seda agrega os objetivos centrais da diplomacia da China para o século XXI, reservando à África a condição de trampolim para que o projeto se torne global.

  6. Fisiopatologia da enxaqueca Migraine pathophysiology

    Directory of Open Access Journals (Sweden)

    MAURICE B. VINCENT

    1998-12-01

    Full Text Available A fisiopatologia da enxaqueca ainda não foi completamente elucidada. As principais estruturas envolvidas parecem ser o sistema nervoso central (córtex e tronco cerebral, o sistema trigeminovascular e os vasos correspondentes, outras fibras autonômicas que inervam estes vasos, e os vários agentes vasoativos locais, como a SP, CGRP, NO, VIP, NPY, ACh, NA, NKA, entre outros. A depressão alastrante é o fenômeno neurológico que provavelmente justifica achados experimenais e clínicos na enxaqueca. Ela tem velocidade de propagação semelhante à aura, ativa o núcleo espinhal do trigêmeo e está relacionada à liberação de CGRP e NO. Alterações circulatórias detectadas por métodos complementares reforçam o papel da depressão alastrante. A identificação de anormalidades em pelo menos três loci (cromossomas 19 e 1 na enxaqueca hemiplégica familiar ocorreu recentemente. Elas estão relacionadas a anormalidades nos canais de cálcio voltagem dependentes tipo P/Q, específicos do sistema nervoso central, que regulam a liberação de vários neurotransmissores, incluindo possivelmente a serotonina. A exemplo de outras anormalidades neurológicas paroxísticas que resultam da hiperexcitabilidade da membrana plasmática, é possível que a enxaqueca ocorra devido a uma desordem de canais iônicos.The pathophysiology of migraine is not yet fully understood. The most important structures involved seem to be the central nervous system (cortex and brain stem, the trigeminovascular system and related cranial arteries, other autonomic fibres innervating such vessels, and various local vasoactive agents, including SP, CGRP, NO, VIP, NPY, ACh, NA, NKA, among others. The spreading depression phenomenon may explain clinical as well experimental findings in migraine. Its propagation velocity mirrors what is found in clinical aura, it may activate the spinal trigeminal nucleus and may induce CGRP and NO release. Circulatory changes detected with

  7. Efeito da enxertia em mandioca

    OpenAIRE

    Bomfim, Nayra Nascimento

    2011-01-01

    Enxertos de duas espécies silvestres (M. glaziovii e M. fortalezensis) sobre M. esculenta, mandioca, foram estudados morfologicamente, anatomicamente e citogeneticamente e a fim de se avaliar possíveis efeitos devido à interação entre enxerto e porta-enxerto. Foram feitas análises anatômicas das raízes dos porta-enxertos UnB 201 e UnB 122 (variedades de M. esculenta), em comparação com as variedades não enxertadas. Analisou-se a meiose em enxerto da espécie M. glaziovii que apresentava morfol...

  8. Da apoteose à Damnatio Memoriae

    OpenAIRE

    Corrêa, Luciano Prado

    2011-01-01

    Resumo: O sistema política romano transitou de um governo aristocrático, a república, para um governo monárquico, o principado. Otávio inaugurou o principado e a dinastia julio-claudiana. Gradativamente foram estabelecidos princípios que visavam promover a legitimação da figura central, o prínceps. Um dos mecanismos de fortalecimento imperial tinha cunho religioso, a divinização dos imperadores. O alvo de um imperador ao divinizar seu antecessor era tornar-se sucessor ou até filho de um deus....

  9. Por uma arte no mundo da vida

    Directory of Open Access Journals (Sweden)

    Rachel Costa

    2016-12-01

    Full Text Available O artigo visa debater a análise colocada por Jacinto Lageira no texto “As razões do agir, contribuição a uma poética da ação”. O debate se estabelece no que concerne ao problema da autonomia da arte e suas consequências, tendo em vista a necessidade de pensar possibilidades contemporâneas para a experiência estética que pressuponham o mundo material. Isso é realizado a partir da teoria dos gestos do filósofo Vilém Flusser.

  10. Aspectos jurídicos da publicidade

    Directory of Open Access Journals (Sweden)

    André Luiz Cavalcanti Cabral

    2003-01-01

    Full Text Available O presente artigo aborda a publicidade comoobjeto do direito. Trata da regulamentação da publicidade noordenamento jurídico brasileiro, iniciando o estudo pelaconceituação da publicidade, bem como de outros institutosinerentes ao cotidiano do ambiente publicitário, para assimdelimitar a abrangência de seu campo de atuação. Analisa asespécies de publicidade ilícitas, apresentando conclusõesacerca da abordagem realizada. Espera contribuir para odebate de tema pouco explorado pelos juristas.

  11. A RELAÇÃO DA TELEVISÃO E DA INTERNET COM O CONSUMO: ANÁLISES DA IDEOLOGIA E DA CULTURA NAS PROPAGANDAS

    Directory of Open Access Journals (Sweden)

    Fábio Carlos Rodrigues Alves

    2016-10-01

    Full Text Available Mais que um meio de comunicação, as tecnologias da comunicação, em especial a TV, transmitem valores, ideias e atitudes, ou seja, todo um conteúdo atitudinal e procedimental. O presente texto discute o papel da mídia televisiva e da internet na transmissão de valores culturais, atendo-se principalmente na questão do consumo. Analisamos propagandas oriundas do ambiente televisivo e também a veiculada pela internet a partir da qual objetivamos, à luz do conceito de Cultura e Ideologia investigar e assinalar o condicionamento dos consumidores ao ato de consumo.

  12. A aplicação dos recursos da seguridade social, a partir da perspectiva da teoria dos sistemas, da teoria comunicacional e do caos

    OpenAIRE

    Júnior, Dávio Antonio Prado Zarzana

    2011-01-01

    Este trabalho, focalizando o custeio da Seguridade Social, pretende realizar três verificações: a primeira, a existência ou não de desvios na aplicação dos recursos arrecadados para este financiamento, inclusive a partir da formulação de um conceito de desvio. A segunda, examinar os desequilíbrios que esses possíveis desvios produziriam, sob a ótica da Teoria dos Sistemas, utilizando-se, em adição, terminologia própria da Teoria Comunicacional. E a terceira, perscrutar a pos...

  13. Disruption of the 37-kDa/67-kDa laminin receptor gene in bovine ...

    African Journals Online (AJOL)

    ... gene encoding for the prion binding site in bovine fetal fibroblasts. The heterozygous BFF are ready to be used in producing homozygous cattle, which will be applied to study the interaction between prion and the 37-kDa/67-kDa LRP/LR. Key words: Prion, PrPC, PrPSc, 37-kDa/67-kDa laminin receptor, gene targeting.

  14. The Technical Training Programme for Nuclear Power Station Personnel; Programme de formation technique du personnel des centrales nucleaires; Programma tekhnicheskoj podgotovki personala yadernoj ehlektrostantsii; El programa de formacion tecnica del personal de una central nucleoelectrica

    Energy Technology Data Exchange (ETDEWEB)

    Howey, G. R. [Hydro-Electric Power Commission of Ontario, Toronto, Ontario (Canada)

    1963-10-15

    de ingenieros con considerable experiencia en trabajos nucleares, centrales termicas y produccion de electricidad; b) Se selecciono entre especialistas altamente calificados otro grupo de operadores y de personal encargado del mantenimiento del equipo; c) Los componentes de ambos grupos siguieron un curso especial sobre centrales nucleoelectricas y termicas, con clases teoricas y practicas a cargo de ingenieros de la central NPD; d) Se creo un centro de formacion en tecnicas nucleares con objeto de seleccionar y capacitar mas personal y de someterle a los examenes pertinentes. El personal fue sometido ademas a un examen por la Atomic Energy Control Board, que es otro organismo federal. Se esta formando personal de cinco categorias: a) Directores: ingenieros encargados de la explotacion, el mantenimiento y la administracion; cambian periodicamente de puesto para familiarizarse con todos estos aspectos del trabajo; b) Operadores: cuatro grados de formacion, segun el trabajo que hayan de realizar; c) Encargados del equipo de control: cuatro grados de formacion; este personal es responsable del mantenimiento de todos los instrumentos, del equipo de control y del equipo electrico; d) Encargados del equipo mecanico: con diversos grados de formacion y varias especialidades (soldadura, fresado, ajuste, etc.); este personal es responsable del mantenimiento de todo el equipo mecanico; e) Personal auxiliar: encargado de una gran variedad de trabajos menos especializados que no requieren un alto grado de formacion. Se necesitan, ademas, algunos otros especialistas, entre ellos quimicos y expertos en proteccion radiologica. El autor de la memoria expone la forma en que esta organizado el personal de la central NPD y examina la cuestion de la formacion profesional teniendo en cuenta las necesidades que crea el desarrollo de la energia nucleoelectrica. (author) [Russian] Atomnaya demonstratsionnaya ehlektrostantsiya Kanady (NPD), vvedennaya v stroj federal'nym agentstvom ''Atomik

  15. Autocorrelation descriptor improvements for QSAR: 2DA_Sign and 3DA_Sign

    Science.gov (United States)

    Sliwoski, Gregory; Mendenhall, Jeffrey; Meiler, Jens

    2016-03-01

    Quantitative structure-activity relationship (QSAR) is a branch of computer aided drug discovery that relates chemical structures to biological activity. Two well established and related QSAR descriptors are two- and three-dimensional autocorrelation (2DA and 3DA). These descriptors encode the relative position of atoms or atom properties by calculating the separation between atom pairs in terms of number of bonds (2DA) or Euclidean distance (3DA). The sums of all values computed for a given small molecule are collected in a histogram. Atom properties can be added with a coefficient that is the product of atom properties for each pair. This procedure can lead to information loss when signed atom properties are considered such as partial charge. For example, the product of two positive charges is indistinguishable from the product of two equivalent negative charges. In this paper, we present variations of 2DA and 3DA called 2DA_Sign and 3DA_Sign that avoid information loss by splitting unique sign pairs into individual histograms. We evaluate these variations with models trained on nine datasets spanning a range of drug target classes. Both 2DA_Sign and 3DA_Sign significantly increase model performance across all datasets when compared with traditional 2DA and 3DA. Lastly, we find that limiting 3DA_Sign to maximum atom pair distances of 6 Å instead of 12 Å further increases model performance, suggesting that conformational flexibility may hinder performance with longer 3DA descriptors. Consistent with this finding, limiting the number of bonds in 2DA_Sign from 11 to 5 fails to improve performance.

  16. Direito à palavra: interrogações acerca da proposta da justiça restaurativa

    Directory of Open Access Journals (Sweden)

    Edson Luiz André de Sousa

    Full Text Available Partindo da constatação da necessidade de alternativas ao sistema de Justiça atual, o presente artigo objetiva dar voz a uma das propostas que vem ganhando força no cenário jurídico mundial: a Justiça Restaurativa. Para tanto, este artigo explora essa proposta, promovendo uma análise crítica amparada em autores da psicanálise (freudo-lacaniana e da Filosofia (com F. Ost e J. Derrida. Através da Justiça Restaurativa, é possível questionar a potência da circulação da palavra, característica que promove o tensionamento entre psicanálise e Direito. Além disso, a questão da Lei e das leis, da performatividade dos atos da fala, da posição do Juiz, da experiência do encontro restaurativo e da função das utopias são os principais vieses que compõem esta análise. Mais voltado para a possibilidade de anunciar questionamentos sobre essa proposta tão nova no contexto brasileiro do que de encontrar respostas satisfatórias, este artigo mantém em suspenso várias conclusões, embora assuma a constatação da importante função utópica da Justiça Restaurativa.

  17. Tratamento cirúrgico da cisticircose da fossa craniana posterior

    Directory of Open Access Journals (Sweden)

    Pedro Garcia Lopes

    1971-03-01

    Full Text Available A cisticercose, um dos mais sérios problemas parasitológicos do sistema nervoso, apresenta, quando localizada na fossa posterior, um quadro clínico dramático, no qual predomina a hipertensão intracraniana. Foram estudados neste trabalho, 70 pacientes com cisticercose de fossa craniana posterior, atendidos no Serviço de Neurocirurgia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo de 1945 a 1968. Considerando-se a grande diversidade existente em torno das técnicas de tratamento cirúrgico, foi objetivo deste trabalho o estudo dos resultados obtidos nestes pacientes, nos quais várias técnicas foram empregadas. As cirurgias paliativas que derivam o trânsito do líquido cefalorraqueano para regiões extracranianas, quando comparadas aos outros tipos de cirurgias utilizados, foram as que proporcionaram maior índice de recuperação, exigiram menos reoperações, além de terem sido acompanhadas de menor número de complicações, bem como de menor mortalidade pós-operatória. Por outro lado, a neurocisticercose geralmente é um processo difuso, encontrando-se parasitas em várias regiões do encéfalo e/ou aracnoidite, conforme comprovou-se, também, entre os casos ora reunidos e que vieram a falecer. Baseando-se nestes fatos, não se justificam as derivações intracranianas e, a não ser eventualmente, a abordagem direta do parasita. Os casos estudados permitem cone- tatar, portanto, que as derivações extracranianas, por sua simplicidade e eficácia, apresentam-se, atualmente, como a terapêutica cirúrgica mais propriada à cisticercose de fossa craniana posterior.

  18. ESTUDO DA SECAGEM DA FIBRA RESIDUAL DO ABACAXI

    Directory of Open Access Journals (Sweden)

    T. G. M. WAUGHON

    2009-01-01

    Full Text Available

    O objetivo deste trabalho foi caracterizar o resíduo fibroso gerado na industrialização do suco de abacaxi (Ananas comosus L. e estudar seu beneficiamento, através da secagem, visando obter um produto rico em fibras dietéticas. O resíduo caracterizado apresentou um elevado teor de fibras (32,95% b.s.. A secagem foi realizada em secador de leito fixo, em camada delgada, utilizando planejamento fatorial completo a três níveis, com triplicata no ponto central. As variáveis de entrada foram: temperatura (50 ºC, 60 ºC e 70ºC e velocidade de circulação do ar (2,0 m/s; 2,5 m/s e 3,0 m/s. As variáveis de resposta avaliadas foram: umidade de equilíbrio, tempo de secagem, taxa de secagem à velocidade constante e coloração do produto. Os resultados obtidos através da análise de variância mostraram que a temperatura foi a variável de entrada que apresentou maior influência sobre as variáveis de resposta analisadas, não exercendo influência significativa apenas sobre a cor do produto.

  19. Estatuto da cidade e juridificação da reforma urbana no Brasil

    OpenAIRE

    Ana Paula Soares Carvalho

    2012-01-01

    O início da década passada foi marcado por um importante evento relacionado ao tratamento das questões urbanas no Brasil. Em dez de julho de 2001, foi promulgada a Lei Federal n 10.257, conhecida como Estatuto da Cidade, que regulamenta o capítulo da política urbana da Constituição de 1988. O Estatuto da Cidade provê suporte legal consistente para aquelas municipalidades comprometidas com o enfrentamento dos problemas sociais e urbanos que afetam diariamente as condições de vida dos habitante...

  20. Imagens e contra imagens da favela

    Directory of Open Access Journals (Sweden)

    Mário Hélio Trindade de Lima

    2008-01-01

    Full Text Available O presente artigo aborda as representações sociais da pobreza urbana no Brasil. O objeto de estudo é, por um lado, o conjunto de discursos e imagens sobre a favela na imprensa e, por outro lado, as auto-representações visuais de favelas e periferias da cidade do Rio de Janeiro, na virada do século XXI. O objetivo é analisar o uso da categoria favela na formação do imaginário social da cidade e, ao mesmo tempo, investigar como se constrói o olhar periférico nas representações fotográficas dos moradores de favelas. O método empregado baseia-se nas contribuições de Pierre Bourdieu e de Roland Barthes para a análise do discurso e nas contribuições da antropologia visual e da história cultural para a análise da fotografia enquanto campo documental na etnografia. Os resultados revelam um movimento de constituição de novas subjetividades no cenário das grandes cidades dos anos 90, por meio da ação de ONG’s nas favelas, criando um espaço de reflexão sobre si e sobre o outro e de afirmação de novas identidades.

  1. Flaskehalsen peger på DA

    DEFF Research Database (Denmark)

    Post, Bettina

    2015-01-01

    Nu har vi i årevis stillet krav til de arbejdsløse. Flaskehalsen peger nu på DA. Kom ind i kampen!......Nu har vi i årevis stillet krav til de arbejdsløse. Flaskehalsen peger nu på DA. Kom ind i kampen!...

  2. Arquitetura da paisagem da cidade e a importância da sistematização da análise do problema projetual

    Directory of Open Access Journals (Sweden)

    Rodrigo Gonçalves dos Santos

    2007-12-01

    Full Text Available Com este artigo pretende-se levantar os conceitos próprios da atividade da Arquitetura Paisagística encarando-a como disciplina projetual e associando-a ao Design Ambiental, necessitando, assim, de linhas metodológicas específicas para apresentação de soluções coerentes aos problemas paisagísticos. Sob esta ótica, reflexões sobre o uso da vegetação no projeto dos espaços exteriores são apresentadas apontando-se uma etapa de sistematização da análise do problema de projeto, dentro da abordagem da concepção de uma metodologia projetual em arquitetura paisagística. Também foram analisadas oito vias de circulação da área central de Florianópolis, Santa Catarina, Brasil, exemplificando uma etapa de sistematização da análise do problema de projeto.

  3. Avaliação da Sustentabilidade da Madeira por Meio da Ferramenta ISMAS

    Directory of Open Access Journals (Sweden)

    Márcia Bissoli-Dalvi

    2017-10-01

    Full Text Available RESUMO Esta pesquisa objetivou avaliar o índice de sustentabilidade da madeira usada na construção civil a partir dos critérios previamente estabelecidos na ferramenta ISMAS – Instrumento para Seleção de Materiais Mais Sustentáveis, cuja metodologia considera especificamente os aspectos relacionados à “economia de matérias-primas” e “geração e gestão de resíduos” nos procedimentos de avaliação. A ferramenta apresenta a seguinte escala de graduação para os possíveis resultados: muito baixo, baixo, médio, alto e elevado. A metodologia adotada para a obtenção dos resultados foi estabelecida a partir de testes com o instrumento, envolvendo arquitetos sediados no Estado do Espírito Santo, Brasil. O resultado demonstrou que a madeira obteve o índice “alto” de sustentabilidade, contrariando a hipótese inicial de que o material alcançaria o nível “elevado”. Esse resultado sugere o amadurecimento do conceito sustentável da madeira, que atualmente relaciona-se somente com o critério renovável. A avaliação pelo ISMAS demonstrou a necessidade do uso de outros critérios.

  4. A ferrovia e o desenho da cidade

    OpenAIRE

    Atilio Comin; Antonio Soukef Júnior

    2017-01-01

    A pesquisa pretende analisar a concepção do bairro da Água Branca a partir da introdução da ferrovia São Paulo Railway Company.  Esmiuçando o contexto da cidade de São Paulo no final do século XIX e início do século XX, época em que surge o bairro Água Branca. Com a presença dos trilhos e o forte crescimento da economia cafeeira, os imigrantes vieram para São Paulo em busca de empregos, dentre eles, se destacou Francisco Matarazzo, um jovem audacioso que teve um papel fundamental na compo...

  5. Da Vinci-assisted abdominal cerclage.

    Science.gov (United States)

    Barmat, Larry; Glaser, Gretchen; Davis, George; Craparo, Frank

    2007-11-01

    To report the first placement of an abdominal cervicoisthmic cerclage using the da Vinci robot. Case report. Tertiary-care hospital. A 39-year-old female with a history of cervical insufficiency who required a cerclage and was not a candidate for transvaginal cerclage placement. Abdominal cervicoisthmic cerclage placement using the da Vinci robot. Ability to safely and successfully place an abdominal cerclage using the da Vinci robot. Abdominal cerclage was successfully placed using the da Vinci robot. The patient had minimal blood loss and was discharged to home on the same day as surgery. Da Vinci robot-assisted abdominal cerclage placement is an innovative application of robotic surgery and may alter the standard of care for women who require this surgery.

  6. A Lei Maria da Penha sob a perspectiva da ética da vingança / Maria da Penha law unde the ethics of revenge approach

    OpenAIRE

    Nunes, Thaísa Silva de Oliveira; Faculdade de Direito de Vitória

    2011-01-01

    RESUMO: Analisa-se a lei 11.340/2006, conhecida como Lei Maria da Penha, sob a perspectiva da ética da vingança, considerando-se a situação de seu uso de forma equivocada. Nesse sentido, argui-se que o judiciário deve tomar um cuidado maior ao julgar casos de violência doméstica. Aborda-se também a possibilidade de uma mulher abandonada ou ultrajada pelo seu companheiro reagir de forma a resgatar a confiança em si, ao invés de se utilizar da prática da vingança permitida pelos mecanismos jurí...

  7. ARTIMANHAS DA HEGEMONIA: OBSTÁCULOS À RADICALIZAÇÃO DA DEMOCRACIA NO BRASIL

    Directory of Open Access Journals (Sweden)

    Frederico Alves Costa

    Full Text Available Resumo Este artigo apresenta como foco o debate sobre dificuldades na construção da luta política na contemporaneidade brasileira, mais especificamente nos últimos anos do governo do Presidente da República Luiz Inácio Lula da Silva. Objetiva-se, a partir do diálogo entre a Teoria Democrática Radical e Plural - desenvolvida por Ernesto Laclau e Chantal Mouffe - e posicionamentos de representantes de diferentes grupos de movimentos sociais brasileiros, discutir dois modos de resistência da hegemonia a alternativas de democratização da sociedade. Esses modos, concebidos como artimanhas da hegemonia, são denominados expansão hegemônica e expurgo à diferença. O debate contribui para a análise sobre estratégias políticas no campo da psicologia social.

  8. Endocardite acuta da Staphylococcus haemolyticus meticillino sensibile, con recidiva dopo trattamento da ceppo meticillino resistente

    Directory of Open Access Journals (Sweden)

    Giacomo Magnani

    2005-03-01

    Full Text Available Le endocarditi su valvole native (NVE da Stafilococchi coagulasi negativi (CoNS presentano un andamento aggressivo simile a quello da Staphylococcus aureus e sono difficili da trattare per l’alta incidenza da parte dei CoNS di resistenza a oxacillina.Viene riportato un caso di NVE da Staphylococcus haemolyticus meticillino sensibile, con risposta iniziale favorevole al trattamento con oxacillina, ma con successiva recidiva a distanza di tre mesi legata comparsa di ceppo oxacillino-resistente. L’ipotesi è che l’infezione sia stata sostenuta da una popolazione batterica con fenotipo eteroresistente, che in seguito al trattamento antibiotico ha sviluppato resistenza omogenea a oxacillina. Nell’impostare un trattamento per infezioni gravi da Stafilococchi sensibili in vitro ad oxacillina è necessario considerare sempre la presenza di un eteroresistenza.

  9. Efeitos da sibutramina sobre o sistema reprodutor masculino de ratos

    OpenAIRE

    Bellentani, Fernanda Furlanetto [UNESP

    2011-01-01

    A sibutramina é uma droga usada mundialmente para o tratamento da obesidade. Poucos A sibutramina é uma droga usada mundialmente para o tratamento da obesidade. Poucos A sibutramina é uma droga usada mundialmente para o tratamento da obesidade. Poucos A sibutramina é uma droga usada mundialmente para o tratamento da obesidade. Poucos A sibutramina é uma droga usada mundialmente para o tratamento da obesidade. Poucos A sibutramina é uma droga usada mundialmente para o tratamento da obesidade. ...

  10. Fenomenologia e crise da arquitetura

    Directory of Open Access Journals (Sweden)

    José Luiz Furtado

    2005-12-01

    Full Text Available Ao se fazer no espaço limítrofe entre a engenharia e a arte, a arquitetura enfrenta simultaneamente problemas estéticos e técnicos. Esta situação a torna tarefa sempre inacabada, ciência tecida no diálogo constante entre dois valores e fazeres tradicionalmente antagônicos. Diante desse quadro, busca-se comumente enraizar a arquitetura em fundamentos exteriores aos seus próprios conceitos, seja na improvisação criadora dos indivíduos, inerente à vida urbana, ou nos diversos saberes sobre o homem que equacionam as necessidades universais às quais ela deveria responder. Estas considerações preliminares conduzem ao cerne de uma questão propriamente filosófica acerca dos fundamentos pré-reflexivos do mundo da vida (Lebenswelt e, no caso da arquitetura, sobre a experiência do habitar que constitui o campo ontológico "regional" de onde parte a ciência/arte aqui investigada.Architecture faces technical and aesthetical problems since it exists in the space between Engineering and Art. This situation turns Architecture into an endless task, a science made in a ceaseless dialogue between two traditional antagonistic values. Art and Engeneering seek to base Architecture in foundations that are outside its own concepts, either when they try to base it in creative improvisation of individuals in their urban lives or when they try to put its roots in several different cognizances about humankind to which it should respond. This introductory essay intends to take us to the experience of inhabitation which constitutes the ontological "region" where this science/art departs from.

  11. SOBRE AS ORIGENS DA FAVELA

    Directory of Open Access Journals (Sweden)

    Alfredo Pereira de Queiroz Filho

    2011-01-01

    Full Text Available This paper focuses upon the origins of the Brazilian shantytown (favela. It investigates the context of the appearance of the housing and of the name itself which came to characterize this form of precarious settlement in Rio de Janeiro at the end of the 19th century. Evidence suggests that the appearance of the shacks was related to the population explosion and the lack of housing in what was the Federal Capital at the time. The name ¿favela¿ is considered to have its origins in the place name 'Alto da Favela', a district on high ground located to the south of the town of Belo Monte, in the North-eastern state of Bahia, which was the site of the 'War of Canudos' uprising. 'Favela' is also the popular name for a plant, common to the outback of Bahia where the fi ghting took place. The species described by Euclides da Cunha, in his book 'Os Sertões', is probably the Cninodoscolus quercifolius. Of the many theories concerning the renaming of the hill district 'Providência' as 'Favela' by those who had been involved in the uprising, the most plausible is that it recalls strategic and topographic features. On the 'Favela' hill in Canudos, the Republican troops were ambushed, and the occupation was extremely important in the defeat of Antonio Conselheiro's followers. The topography is associated with a metaphor for the deprivation suffered by the troops during and after the fi ghting. The natural diffi culties of the battle, compounded by the physical characteristics of the outback, were related to the struggle the soldiers had in receiving their pay once the war had ended.

  12. Disturbios da olfacao: estudo retrospectivo

    Directory of Open Access Journals (Sweden)

    Luciano Lobato Gregorio

    2014-01-01

    Full Text Available Introdução: O olfato, fenômeno subjetivo de grande importância, é pouco compreendido e estudado no ser humano. Médicos com maior conhecimento sobre os distúrbios desse sentido tendem a considerar a doença mais importante e manejar melhor o diagnóstico e o tratamento. Objetivo: Descrever a amostra dos pacientes com queixa principal de distúrbios do olfato e mostrar a experiência do serviço no manejo e tratamento. Delineamento: Estudo retrospectivo de coorte histórica com corte transversal. Materiais e métodos: Descrição da amostra e avaliação de resposta ao tratamento de pacientes com queixa principal de hiposmia ou anosmia atendidos no ambulatório de Rinologia no período de janeiro de 2005 a outubro de 2011. Resultados: Dos 38 pacientes com distúrbio da olfação, 68,4% dos pacientes apresentaram queixa de hiposmia e 31,5% de anosmia, com duração média de 30,8 meses. Os diagnósticos etiológicos principais foram idiopática (31,5%, rinopatia alérgica (28,9% e RSC com pólipos (10,5%. As respostas ao tratamento com corticosteroide tópico e ácido alfa-lipoico foram variáveis, assim como na literatura. Conclusão: Maior importância deve ser dada aos distúrbios do olfato na prática do otorrinolaringologista, uma vez que o diagnóstico diferencial é amplo e pode trazer grande morbidade ao paciente, com impacto na sua qualidade de vida.

  13. Implicações da visibilidade da enfermagem no exercício profissional

    Directory of Open Access Journals (Sweden)

    Liziani Iturriet Avila

    Full Text Available A construção da imagem da Enfermagem é permeada por aspectos históricos, socioeconômicos e culturais. Ao explorar esta temática, objetivou-se conhecer a percepção dos enfermeiros acerca da visibilidade do cotidiano de trabalho da equipe de enfermagem. Pesquisa qualitativa do tipo exploratória, com 30 enfermeiros de um hospital universitário do sul do país. Os dados foram coletados, de julho a outubro de 2012, através de entrevista semi-estruturada e submetidos à análise textual discursiva. Os resultados apontam que a visibilidade da Enfermagem está relacionada à trajetória histórica da profissão, à falta de reconhecimento da cientificidade da Enfermagem, à veiculação errônea na mídia, aos comportamentos inadequados perante a equipe e, ainda, à sobrecarga de trabalho. Assim, a desmistificação da imagem da profissão inclui uma busca de maior visibilidade midiática, realização de marketing pessoal, comportamento adequado perante a equipe de saúde e demonstração de autonomia profissional, desafios estes que deverão ser superados pela Enfermagem.

  14. ESTATUTO PARADOXAL DA PELE E CULTURA CONTEMPORÂNEA: da porosidade à pele-teflon

    Directory of Open Access Journals (Sweden)

    Maria Cristina Franco Ferraz

    2014-06-01

    Full Text Available A exploração do estatuto paradoxal da pele - interface dentro/fora - permite ultrapassar a dicotomia metafísica superfície/profundidade, problematizando a tendência atual, também expressa na teoria, a um elogio das superfícies e a um horror por oposições dicotômicas. Possibilta avaliar as implicações do fechamento da porosidade da pele em formas de sociabilidade estimuladas na cultura da imagem, da exibição, do espetáculo, bem expressas pelo material inorgânico teflon. Sendo Poros, na visão grega, pai de Eros, a investigação acerca do estatuto paradoxal da pele convida a uma retomada do tema do erotismo. Partindo de perspectivas oferecidas por Agamben acerca da pornografia, ligada ao valor de exibição nas sociedades de espetáculo e de consumo, e relacionando-as a diversas reflexões de José Gil acerca do corpo e da pele, discute-se e convoca-se a abertura da porosidade da pele.

  15. Cruzeiros marítimos: realidade da oferta e da demanda no mercado brasileiro

    Directory of Open Access Journals (Sweden)

    Carlos Eduardo de Almeida Ramoa

    2014-12-01

    Full Text Available O turismo marítimo apresenta uma demanda crescente e constante nos Estados Unidos e na Europa. No Brasil, esse mercado vinha se destacando com crescimento exponencial da demanda, no entanto, a partir da temporada 2011/2012 a taxa de crescimento tem apresentado queda. Este estudo de caráter exploratório e descritivo utiliza o método de procedimento matemático e tem como objetivo geral identificar a realidade da oferta e da demanda no mercado brasileiro de cruzeiros marítimos. Para atingi-lo foram identificados os históricos da oferta e da demanda, no período de 2004 a 2013, e da situação atual da infraestrutura portuária, através da utilização de técnicas de documentação indireta, procedimento documental e bibliográfico. Para se comparar a taxa de crescimento do mercado brasileiro com os principais mercados foi realizado cálculo da extrapolação matemática exponencial. Os resultados apresentados indicam que o Brasil é o único país entre os dez maiores mercados de cruzeiros marítimos, que possui taxa de crescimento negativo, indicando haver uma crise no segmento de cruzeiros marítimos, cujo motivo aponta para os problemas estruturais como sendo uma das causas da queda da oferta e da demanda no mercado brasileiro.

  16. Combatentes do gueto, guerreiros da periferia

    Directory of Open Access Journals (Sweden)

    Mônica Rebecca Ferrari Nunes

    2013-01-01

    Full Text Available Combatente do gueto, guerreiro da periferia, militante da causa (... Combatente do gueto é o nome de uma rua atrás do Palácio do Governo (...” conta Jairo, taxista, a propósito de sua inspiração poética, durante as filmagens de Povo lindo, povo inteligente – O Sarau da Cooperifa, documentário dirigido por Sérgio Gagliardi e Maurício Falcão, produzido, em 2008, pela DGT Filmes. O filme narra a história e os bastidores do sarau que acontece na zona sul da cidade de São Paulo, em Campo Limpo, no bar do Zé Batidão. “A periferia não tem museu, não tem teatro nem cinema, o único espaço público que tem é o bar”, explica Sérgio Vaz, um dos idealizadores do movimento que contempla na produção poética, da periferia para a periferia, a força da contestação social. A cultura como arena para a luta entre os signos monossêmicos e a pluralidade sígnica proposta pelo artista que faz da palavra ruído incômodo. O sarau da Cooperifa, o sarau do Binho também já foram objetos de estudos acadêmicos, como a tese As redes de escritura nas periferias de São Paulo, de Marco Antônio Bin, defendida no Programa de Ciências Sociais da PUCSP, em maio de 2009

  17. Um panorama da literatura relevante sobre Itaipu

    OpenAIRE

    Espósito Neto, Tomaz

    2013-01-01

    A hidroelétrica brasileiro-paraguaia de Itaipu é considerada um marco relevante nas relações entre Brasil e Paraguai, pois criou um vínculo permanente entre os dois países. Ainda nos dias atuais Itaipu é uma das maiores geradoras de energia do mundo, responsável por mais de 25 por cento da energia gerada no Brasil e cerca de 95 por cento da eletricidade consumida no Paraguai. Os diversos reflexos da construção de Itaipu, em especial as mudanças na estrutura de poder no Cone Sul, são fenômenos...

  18. ANATOMIA DA MADEIRA DE Mimosa eriocarpa Benth.

    Directory of Open Access Journals (Sweden)

    José Newton Cardoso Marchiori

    1993-12-01

    Full Text Available São descritos os caracteres anatômicos da madeira de Mimosa eriocarpa Benth. e fornecidos 31 dados quantitativos de sua estrutura xilemática. A descrição é ilustrada com fotomicrografias tomadas nos três planos anatômicos. A estrutura da madeira é comparada com referências da literatura para espécies afins, em uma análise de caráter taxonômico-filogenética.

  19. Anatomia da madeira de Mimosa eriocarpa Benth.

    Directory of Open Access Journals (Sweden)

    Celso Carnieletto

    2009-09-01

    Full Text Available Normal 0 21 false false false MicrosoftInternetExplorer4 São descritos os caracteres anatômicos da madeira de Mimosa eriocarpa Benth. e fornecidos 31 dados quantitativos de sua estrutura xilemática. A descrição é ilustrada com fotomicrografias tomadas nos três planos anatômicos. A estrutura da madeira é comparada com referências da literatura para espécies afins, em uma análise de caráter taxonômico-filogenética.

  20. Waldemar Cordeiro : da arte concreta ao "popcreto"

    OpenAIRE

    Fabricio Vaz Nunes

    2004-01-01

    Resumo: Este trabalho analisa a transformação da produção artística e teórica de Waldemar Cordeiro (1925-1973) na sua passagem da arte concreta dita ?histórica?, desenvolvida em São Paulo na década de 1950, para as novas formulações na década de 1960, com as suas experimentações com o informal e as assemblages da ?arte concreta semântica? ou ?popcreto? Abstract: This work analyses the transformations in the production both visual and theoretical of Waldemar Cordeiro (1925-1973), in his tr...

  1. Os Desafios da Epidemia do Ebola

    OpenAIRE

    Manoel Dias da Fonsêca Neto; Augediva Maria Jucá Pordeus

    2014-01-01

    Desde que se criaram as condições para a existência de aglomerados populacionais, os grandes flagelos sanitários da humanidade sempre estiveram presentes. As condições de vida, os desastres naturais ou provocados, podem agravar consideravelmente o risco de epidemias. Ao largo da história da humanidade, se viu populações de todo o mundo afetadas esporadicamente por surtos devastadores de doenças infecciosas, com destaque para cólera, peste e varíola. Hipocrates (460-377 AC) e Galeno (129-216 D...

  2. MANEJO DA IRRIGAÇÃO DA CULTURA DA ALFACE (Lactuca sativa L. ATRAVÉS DO TANQUE CLASSE A

    Directory of Open Access Journals (Sweden)

    ANDRADE JÚNIOR A.S. de

    1997-01-01

    Full Text Available Com o objetivo de avaliar o efeito de diferentes níveis de irrigação, baseados em frações da evaporação do Tanque Classe A (ECA (0,25; 0,50; 0,75 e 1,00 sobre o comportamento produtivo da cultura da alface, variedade "Mesa 659" (tipo americana, cultivada em uma estufa plástica e irrigada por gotejamento, foi conduzido um experimento durante o período de julho a setembro de 1993. O comportamento produtivo foi avaliado através da determinação da matéria fresca (MFP, produtividade (PROD e eficiência do uso de água (EUA. Os resultados de MFP e PROD mostraram resposta quadrática, indicando acréscimo em ambos à medida que aumentaram as lâminas de irrigação aplicadas até o nível 0,75 da ECA, apresentando valores máximos de 818,72 g e 90,97 t.ha-1, respectivamente. Os dados relativos à EUA revelaram resposta linear decrescente, significando que à medida que os níveis de irrigação aumentam ocorre uma diminuição na EUA.

  3. Origin of the DA and non-DA white dwarf stars

    Science.gov (United States)

    Shipman, Harry L.

    1989-01-01

    Various proposals for the bifurcation of the white dwarf cooling sequence are reviewed. 'Primordial' theories, in which the basic bifurcation of the white dwarf sequence is rooted in events predating the white dwarf stage of stellar evolution, are discussed, along with the competing 'mixing' theories in which processes occurring during the white dwarf stage are responsible for the existence of DA or non-DA stars. A new proposal is suggested, representing a two-channel scenario. In the DA channel, some process reduces the hydrogen layer mass to the value of less than 10 to the -7th. The non-DA channel is similar to that in the primordial scenario. These considerations suggest that some mechanism operates in both channels to reduce the thickness of the outermost layer of the white dwarf. It is also noted that accretion from the interstellar medium has little to do with whether a particular white dwarf becomes a DA or a non-DA star.

  4. A circulação da experiência da dor em narrativas no Facebook

    Directory of Open Access Journals (Sweden)

    Marlon Santa Maria Dias

    2017-07-01

    Full Text Available Este trabalho reflete alguns aspectos da problemática da circulação na ambiência da midiatização. A partir de material coletado em um grupo de discussão no Facebook sobre a mobilização “Eu não mereço ser estuprada”, analisamos as estratégias discursivas que compõem os processos de enunciação da mobilização dos atores sociais. Apontamos a reconfiguração narrativa na circulação da experiência da dor e a criação de redes interativas de apoio e aconselhamento.

  5. An extension of PPLS-DA for classification and comparison to ordinary PLS-DA.

    Directory of Open Access Journals (Sweden)

    Anna Telaar

    Full Text Available Classification studies are widely applied, e.g. in biomedical research to classify objects/patients into predefined groups. The goal is to find a classification function/rule which assigns each object/patient to a unique group with the greatest possible accuracy (classification error. Especially in gene expression experiments often a lot of variables (genes are measured for only few objects/patients. A suitable approach is the well-known method PLS-DA, which searches for a transformation to a lower dimensional space. Resulting new components are linear combinations of the original variables. An advancement of PLS-DA leads to PPLS-DA, introducing a so called 'power parameter', which is maximized towards the correlation between the components and the group-membership. We introduce an extension of PPLS-DA for optimizing this power parameter towards the final aim, namely towards a minimal classification error. We compare this new extension with the original PPLS-DA and also with the ordinary PLS-DA using simulated and experimental datasets. For the investigated data sets with weak linear dependency between features/variables, no improvement is shown for PPLS-DA and for the extensions compared to PLS-DA. A very weak linear dependency, a low proportion of differentially expressed genes for simulated data, does not lead to an improvement of PPLS-DA over PLS-DA, but our extension shows a lower prediction error. On the contrary, for the data set with strong between-feature collinearity and a low proportion of differentially expressed genes and a large total number of genes, the prediction error of PPLS-DA and the extensions is clearly lower than for PLS-DA. Moreover we compare these prediction results with results of support vector machines with linear kernel and linear discriminant analysis.

  6. Cointegrating MiDaS Regressions and a MiDaS Test

    OpenAIRE

    J. Isaac Miller

    2011-01-01

    This paper introduces cointegrating mixed data sampling (CoMiDaS) regressions, generalizing nonlinear MiDaS regressions in the extant literature. Under a linear mixed-frequency data-generating process, MiDaS regressions provide a parsimoniously parameterized nonlinear alternative when the linear forecasting model is over-parameterized and may be infeasible. In spite of potential correlation of the error term both serially and with the regressors, I find that nonlinear least squares consistent...

  7. Tipologia da consciência

    Directory of Open Access Journals (Sweden)

    João Queiroz

    2008-10-01

    Full Text Available Apesar do interesse crescente de muitas comunidades cientí­ficas pelo fenômeno da consciência, e apesar dos avanços obtidos recentemente por estas comunidades, multiplicam-se questões básicas sobre teorias, métodos, modelos e protocolos de investigação adequados; multiplicam-se as divergências sobre definições e demarcações conceituais e terminológicas. Parece, entretanto, haver uma questão consensual, embora não resolvida, que aproxima materialistas e dualistas, reducionistas e epifenomenalistas de muitas áreas: a consciência é um estado, processo ou entidade, que manifesta-seheterogeneamente. Como classificar a heterogeneidade de suas formas?Abstract: In spite of the increased interest of several scientific communities in the phenomenon of consciousness, and in spite of the recent results they have obtained, many basic questions about the most adequate theories, methods, models, and protocols for investigation concerning this topic remain, as well as disagreements about conceptual and terminological definitions. However, there does seem to be a consensus among dualists, materialists, reductionists and epiphenomenalists from many fields that consciousness is a state, process or entity, which express itself heterogeneously. This,therefore, leads to the question of how to classify the heterogeneity of its forms.

  8. Energy education; Pedagogia da energia

    Energy Technology Data Exchange (ETDEWEB)

    Muniz, Rafael Ninno, e-mail: rafaelninno@gmail.com

    2006-07-01

    'Pedagogia da Energia' (energy education) is a qualification course that has as intention to unite ambient education with renewable energies through the art-education and of the long-distance education. Collective made up of theoretical and practical activities through group dynamic and works, with intention to integrate and to enable the participants as a whole, aiming to form potentials to agreement and diffusion of energy concepts of the subjects environment - energy - residues. It possess the structure of an actual course with support of long-distance education with a platform of available web education in the Internet, where the participants have access the all content used in the course (texts, presentations and figures), virtual library, colloquy room, thematic list of quarrel and forum, beyond guardianship accompaniment. A structure constructed in classroom for the participants uses as pedagogical tool titled 'Mandala das Energias' where the concepts studied are worked in. The politics characteristics presented are, ambient and social of the use of the power plants and its implications in the daily one of the humanity. It understands the education as a reciprocal process, that understands the intention to teach and to learn in a set of exchanges of necessary information to the curious nature of the human beings. This article explains the structure and methodology of functioning of the course with a summary of the worked chapters. It also presents the pedagogical tool 'Mandala das Energias' and its respective flowchart of energies that originated it in annex at the end of the text. (author)

  9. Influência da idade da planta e da maturação dos frutos no momento da colheita na qualidade do café

    OpenAIRE

    Borges,Fernanda Barbosa; Jorge,José Tadeu; Noronha,Regina

    2002-01-01

    São de grande importância os cuidados no preparo do café desde a colheita até o consumo e o estudo de parâmetros que possam influenciar na classificação comercial do grão e na qualidade da bebida. Teve-se como objetivos analisar a influência da idade das plantas, pertencentes à mesma variedade, e dos estágios de maturação dos grãos (secos, cerejas e verdes) no resultado da classificação comercial e na qualidade da bebida. Realizou-se a colheita, por derriça no pano, de uma área com café arábi...

  10. Apontamentos para uma sociologia da valentia

    Directory of Open Access Journals (Sweden)

    Eliézer Cardoso de Oliveira

    Full Text Available Resumo O artigo objetiva a construção de uma tipologia da valentia a partir da sociologia compreensiva de Weber, Simmel e Elias. A valentia é considerada como uma escolha valorativa de indivíduos inclinados a levarem uma vida de aventura e convictos da legitimidade de um estilo de vida baseado na proximidade com a violência, com a morte e com o risco. Mesmo com o advento da modernidade, quando emergiu o “processo civilizador”, responsável por refrear os instintos violentos, a valentia, restringida na vida cotidiana, mantém-se atuante como um valor social legítimo.

  11. INTERNET E GESTÃO DA DEMANDA

    Directory of Open Access Journals (Sweden)

    Mauro Vivaldini

    2015-06-01

    Full Text Available Neste artigo a demanda é abordada a partir da análise de um caso real, em que uma grande empresa de distribuição de food-service trabalha utilizando a internet como ferramenta de apoio a sua gestão. Em uma primeira etapa, o estudo explora os aspectos teóricos relacionados a gestão da demanda, a colaboração na cadeia de suprimentos, e sua relação com a internet para, em seguida, apresentar proposições que são analisadas no estudo de caso. O estudo ajuda a reforçar o estágio atual de aceitação e utilização da internet como ferramenta de suporte à gestão da demanda e a cadeia de suprimentos.

  12. Un giornalino scolastico realizzato da ragazzi Down

    Directory of Open Access Journals (Sweden)

    Lucia Ferlino

    2002-01-01

    Full Text Available Questa rubrica riporta un'esperienza nell'uso dell'informatica per favorire l'inclusione di studenti disabili attraverso la realizzazione di un giornalino scolastico da parte di ragazzi Down.

  13. O historiador como intelectual mediador da cultura

    Directory of Open Access Journals (Sweden)

    Alex Fernandes Borges

    2017-07-01

    Full Text Available O presente artigo visa analisar teoricamente a possibilidade de se qualificar o historiador, tomando por base uma tipologia ideal extraída da teoria da história de Jörn Rüsen, como um intelectual mediador, notadamente com base no conceito proposto a partir dos estudos de mediação cultural desenvolvido por Jesús Martín-Barbero e recentemente sistematizado no país por Ângela de Castro Gomes e Patrícia Hansen. Diante disso, articulou-se as hipóteses em três eixos: caracterização do intelectual mediador da cultura como uma categoria de análise compreensiva; instituição de um tipo ideal de historiador nos moldes weberianos e; a subsunção deste àquela.

  14. Nova abordagem no tratamento da esquizofrenia

    Directory of Open Access Journals (Sweden)

    Walter Speltri

    1966-12-01

    Full Text Available Foram tratados 11 casos de esquizofrenia com a guanetidina, substância considerada, do ponto de vista farmacodinâmico, como simpaticoplégica. Na opinião do autor, os surpreendentes e significativos resultados obtidos autorizam uma nova abordagem nas pesquisas à procura da etiopatogenia da esquizofrenia e, a partir dos elementos colhidos, considera plausível uma "teoria psicossomática da esquizofrenia". Recusa-se, entretanto, a cair no atraente, mas inútil, terreno especulativo. Prefere aguardar que os farmacologistas e fisiologistas forneçam dados pais precisos sobre o mecanismo de ação da guanetidina e que novos estudos confirmem seus resultados para, depois, dar publicidade à sua teoria.

  15. O psicanalista no tratamento da dor

    Directory of Open Access Journals (Sweden)

    Sueli Pinto Minatti

    2012-12-01

    Full Text Available A dor se manifesta como mal-estar do corpo e no corpo, e tende a ser encaminhada para tratamento médico. O objetivo deste trabalho é analisar a queixa dolorosa do ponto de vista do tratamento psicanalítico, retomando algumas acepções relacionadas ao tratamento da dor, encontradas na obra de Freud. Partimos da experiência no trabalho em hospital pediátrico, utilizando a análise do atendimento de pacientes com queixas de dor para definir e situar a dor no campo da psicanálise, e distingui-la do campo da medicina. No texto, pode-se acompanhar a dor como signo de sofrimento e diversas formas de abordá-la tanto pelo sujeito que a porta quanto pelas instituições que propõem seu cuidado.

  16. Aleksi II kritikujet "Kod da Vintshi"

    Index Scriptorium Estoniae

    2006-01-01

    Dan Browni samanimelise romaani järgi valminud põnevusfilm "Da Vinci kood" : režissöör Ron Howard : Ameerika Ühendriigid 2006. Venemaa patriarh Aleksius II nimetas filmi linastamist lugupidamatuseks moraalinormide vastu

  17. Didáctica da física e didáctica da química : experimentação no ensino da física e da química

    OpenAIRE

    Pereira, Alda

    1991-01-01

    Formação - Professores A componente experimental no ensino da Física e da Química. Experimentação na sala de aula e alguns exemplos. Disciplina “Didáctica da Física e da Química”, do Curso de Profissionalização em Exercício.

  18. Gramsci e o debate em torno da filosofia da prÃxis

    OpenAIRE

    Jecson GirÃo Lopes

    2013-01-01

    A presente dissertaÃÃo margeia em torno da discussÃo sobre a maneira pela qual Gramsci debate com os autores de seu tempo, principalmente com Nicolai BukhÃrin, defensor, segundo Gramsci, de um marxismo vulgar, devido sua compreensÃo mecanicista (economicista), fatalista, pelo uso do positivismo na filosofia da prÃxis, marxismo, (materialismo vulgar) e Benedetto Croce, a partir de sua ideia revisionista da filosofia da prÃxis (neo-idealismo: historicismo idealista, conforme Gramsci), como send...

  19. Efeito da adrenalectomia e da medulectomia adrenal sobre o esvaziamento gastrico de liquidos em ratos

    OpenAIRE

    Marcos Leitão Ronsini

    1998-01-01

    Resumo: O efeito da adrenalina e da mudelectomia adrenal, sobre o esvaziamento gástrico (EG) de líquidos em ratos, foi estudado em ratos da linhagem Wistar, fornecidos pelo Biotério Central da Unicamp, com idade de 8 semanas e pesando entre 195 e 240 g, com um período de adaptação de 4 dias ao ambiente do labotório, onde pemaneceram com ciclo artificial de luz/penumbra de 12 horas e temperatura entre ?22GRAUS? e ?28GRAUS?C. Os animais foram divididos em 3 grupos. O primeiro, formado por anim...

  20. ASPECTOS RELEVANTES DO INSTITUTO DA INVERSÃO DO ÔNUS DA PROVA

    OpenAIRE

    João Alberto Mendes Bezerra Júnior

    2017-01-01

    O presente trabalho pretende contribuir, ainda que minimamente, com o mundo jurídico, no que diz respeito ao instituto da inversão do ônus da prova, previsto no art. 6º, VIII do Código Brasileiro de Defesa do Consumidor, sob o enfoque do Direito Constitucional. Além de abordar o alcance dos requisitos impostos por esse dispositivo legal, o estudo trata do momento em que a inversão do ônus da prova deve ocorrer no processo civil, trazendo novas luzes a respeito, mormente como reforço à tese da...

  1. ANÁLISE OPERACIONAL DA COLHEITA FLORESTAL NO SUL DA BAHIA

    OpenAIRE

    CARMO, F. C. A.

    2013-01-01

    CARMO, Flávio Cipriano de Assis. Análise operacional da colheita florestal no sul da Bahia. 2013. Dissertação (Mestrado em Ciências Florestais) Universidade Federal do Espírito Santo, Jerônimo Monteiro-ES. Orientador: Prof. Dr. Nilton César Fiedler. Coorientador: Profª. Drª. Elizabeth Neire da Silva Oliveira de Paula. Objetivou-se com esta pesquisa realizar uma análise operacional das atividades de colheita florestal em plantios de eucalipto no sul da Bahia. No estudo foram avaliados os ...

  2. "Da Vinci kood" ja Eesti / Reet Rast

    Index Scriptorium Estoniae

    Rast, Reet, 1964-

    2010-01-01

    Möödunud kuu kunstisündmuseks oli "Da Vinci koodi avamine" Kadrioru Kunstimuuseumis ja Tallinna Ülikoolis. 5.-12. veebruarini eksponeeriti Kadrioru kunstimuuseumis Leonardo da Vinci arvatavat autoportreed. Lõuna-Itaalia erakogust leitud maali analüüsimisega tegelesid Tallinna Ülikooli maali ja maalitehnoloogia õppejõud Orest Kormašov, kes valmistas klassikalise portreeskulptuuri, arvutisimulatsiooni teostas Eesti Kunstiakadeemia graafilise disaini tudeng Helen Kokk

  3. Doenças da mama

    Directory of Open Access Journals (Sweden)

    Edimárlei Gonsales Valério

    2012-07-01

    Full Text Available Os distúrbios das mamas podem ser não cancerosos (benignos ou cancerosos (malignos. Os distúrbios não cancerosos incluem a mastalgia (dor nas mamas, os cistos, a doença fibrocística da mama, o fibroadenoma, a secreção através dos mamilos e a infecção da mama.

  4. Test Review: TestDaF

    Science.gov (United States)

    Norris, John; Drackert, Anastasia

    2018-01-01

    The Test of German as a Foreign Language (TestDaF) plays a critical role as a standardized test of German language proficiency. Developed and administered by the Society for Academic Study Preparation and Test Development (g.a.s.t.), TestDaF was launched in 2001 and has experienced persistent annual growth, with more than 44,000 test takers in…

  5. Saberes docentes da dança

    Directory of Open Access Journals (Sweden)

    Silvia Camara Soter da Silveira

    2016-12-01

    Full Text Available Este artigo trata do tema saberes docentes e busca sua relação com o ensino da dança na escola. A categoria saber docente tornou-se central no campo da formação de professores a partir dos anos 1990 no Brasil. Neste trabalho, o saber docente é abordado através de dois autores que se dedicaram ao tema: Maurice Tardif (2012 e Selma Garrido Pimenta (2012, na busca de refletir sobre as especificidades do saber docente daquele que ensina dança na escola. O saber docente se constitui, de uma parte, na formação inicial e contínua em instituições de formação de professores e, de outra parte, se desenvolve ao longo da vida dos estudantes e professores, em contextos distintos destas instituições, nas vivências destes professores antes da chegada à formação inicial, nas marcas que a escolarização deixou, na articulação do que aprendem nos cursos de formação de professores com a realidade da escola e, também, pela própria prática docente no início da atividade profissional, no contexto da escola, através das trocas com seus pares. No caso da dança, no saber docente se mesclam saberes constituídos no ensino formal como no não formal, que na trajetória dos docentes de dança parece ter um papel importante.

  6. Liver trauma from penetrating injuries. Miscellanea, personal series, clinical and CT findings; Traumi epatici da lesioni penetranti. Miscellanea, casistica personale, aspetti clinici e con Tomografia Computerizzata

    Energy Technology Data Exchange (ETDEWEB)

    Salzano, A.; Nocera, V. [Ospedale San Giovanni di Dio di Frattamaggiore, Servizio di Radiologia, Frattamaggiore, NA (Italy); De Rosa, A.; Vigliotti, A. [Azienda Sanitaria Locale NA1, Radiologia, Naples (Italy); Rossi, E.; Carbone, M.; Gatta, G. [Naples Univ. Federico 2., Naples (Italy). Ist. di Scienze Radiologiche; Vitale, L. [Ospedale di Sorrento, Servizio di Radiologia, Sorrento, NA (Italy)

    2000-12-01

    the extent and severity of damage, which permits to choose a conservative treatment in case of intraparenchymal hematomas and lacerocontusive foci without hemoperitoneum, which can be followed-up with physical and CT examinations. Moreover, Helical CT could provide the early diagnosis of active bleeding in the peritoneum and of focal bleeding in the liver, thus permitting prompt hepatorrraphy or targeted hepatectomy. A diaphragm injury suspected at CT should always prompt the surgeon to intervention, especially when hemothorax, lung base pneumothorax, large liver hematoma or tear of the liver dome are associated. Finally, subdiaphragmatic free gas indicates gut perforation associated with liver damage, in which case surgery is necessary too. [Italian] Le ferite penetranti del fegato sono dovute a molteplici cause, e occupano il secondo posto dopo i traumi chiusi epato-addominali. Scopo del lavoro e' di illustrare i vari quadri clinico-radiologici della nostra casistica personale, determinati da lesioni penetranti da armi da fuoco e da punta e taglio. Definire inoltre la modalita' di diagnosi, soprattutto in base ai segni TC del danno epatico e di lesioni associate, che condizionano in modo decisivo la terapia e l'approccio chirurgico o conservativo. Negli ultimi sette anni sono stati studiati retrospettivamente 31 casi (19 maschi e 12 femmine; eta' media 42 anni, compresa tra 18 e 73 anni), con lesioni penetranti del fegato, dovute prevalentemente a armi da fuoco (16 pazienti), a armi da punta e taglio (9 casi) e miscellanee in 6. L'esame TC dell'addome e' stato eseguito in emergenza e con tecnica angio-TC in tutti i pazienti. Nei casi di ferite con sospetto coinvolgimento toraco-addominale, la TC veniva iniziata dal medio-torace al fine di una valutazione accurata del diaframma, delle basi polmonari e per escludere lesioni pleuropolmonari associate. Nel 70% dei casi le ferite penetranti epatiche erano in relazione ad arma da fuoco

  7. Normatividade, tecnicidade e/ou cientificidade da Biblioteconomia

    OpenAIRE

    Carvalho Silva, Jonathas Luiz

    2013-01-01

    Este trabalho apresenta como problema uma questão que pode ser discutida a partir da seguinte pergunta: como ocorre o processo de construção da normatividade, da tecnicidade e/ou da cientificidade da Biblioteconomia? Discute também a construção de uma normatividade, tecnicidade e/ou cientificidade da Biblioteconomia, contemplando perspectivas em relação à organização e ao tratamento da informação, fontes, recursos e serviços de informação, práticas profissionais e estudos centrados nos usuári...

  8. NOTAS SOBRE A IRRACIONALIDADE DA GUERRA

    Directory of Open Access Journals (Sweden)

    Edilene Leal

    2014-08-01

    Full Text Available Nesse artigo, procedemos a uma análise sobre a irracionalidade da guerra em tempos cada vez mais caracterizados pela evolução da racionalidade técnica, ou seja, em tempos contemporâneos. Esse é o ponto a partir do qual traçamos, aqui, um percurso argumentativo dividido em duas partes. Na primeira, reconstituímos elementos da concepção de guerra de filósofos como Maquiavel, Clausewitz e Kant, destacando, nos dois primeiros pensadores, a prerrogativa de que a guerra é racional quando se configura meio para fins políticos. Na segunda parte, confrontamos essa racionalidade política da guerra com a dupla dimensão técnica que a guerra assumiu: de um lado, a guerra como um fim em si mesmo e não mais como meio da ação política; de outro, a dimensão racionalizante da guerra como resultado do progresso técnico e científico, atualizada como guerra do terror.

  9. DISPOSITIVO DAS DROGAS E GOVERNO DA VIDA

    Directory of Open Access Journals (Sweden)

    Wanderson Vilton Silva

    Full Text Available Resumo Na perspectiva da Psicologia Social em diálogo com as teorizações de Michel Foucault e Giorgio Agamben, o objetivo deste artigo é problematizar de que maneira as drogas são constituídas como explicação para assassinatos de moradores de rua, construindo práticas e discursos relacionados ao governo da vida e da morte nas cidades. O material que apresentamos consiste em textos midiáticos e documentos públicos elaborados entre julho de 2010 e novembro de 2012 abordando tais assassinatos. Analisamos como o dispositivo das drogas formula uma ambiguidade e uma complexidade importantes para o governo dos moradores de rua a partir da construção de oposições: criminoso ou em situação de vulnerabilidade social. Procuramos contribuir criticamente com políticas públicas que visem os diversos modos de existir na cidade, pensar os espaços urbanos, os modos de governo e os processos de subjetivação, considerando a análise da ambiguidade e da complexidade produzidas em torno do dispositivo das drogas.

  10. A Tribute to Prof Dr Da Ruan

    CERN Document Server

    Kerre, Etienne

    2013-01-01

    This volume is a tribute to Professor Dr Da Ruan, who passed away suddenly on July 31, 2011, aged 50. The flood of emails that spread throughout the fuzzy logic research community with the tragic news was testimony to the respect and liking felt for this remarkable man. Da was a hardworking , highly productive scientist who, during his short life, published 35 books and more than 250 research papers in highly ranked journals and conference proceedings. He established two successful conferences, FLINS and ISKE, as well as the international journal, JCIS. This book is a collection of contributions from 88 of Da's academic friends from 47 institutes, presented in 60 chapters and over 70 pictures. A Foreword by Lotfi Zadeh begins Da's story. Section 1 provides an overview of Da's funeral on August 6, 2011. Part II outlines Da’s scientific life, his education, scientific career, publications and keynote talks. Part III presents testimonials by Da's colleagues of academic activities, including guest professorship...

  11. The financial impact of the incorporation of IMRT and RapidArc™ techniques on shielding calculation of a linear accelerator; O impacto financeiro da incorporacao das tecnicas de IMRT e RapidArc™ no calculo de blindagem de um acelerador linear

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Maira R.; Silveira, Thiago B.; Garcia, Paulo L.; Trindade, Cassia; Martins, Lais P.; Batista, Delano V.S., E-mail: mairafisica@gmail.com [Instituto Nacional do Cancer (INCA), Rio de Janeiro, RJ (Brazil)

    2013-08-15

    Given the new methodology introduced in the shielding calculation due to recent modulated techniques in radiotherapy treatment, it became necessary to evaluate the impact of changes in the accelerator routine using such techniques. Based on a group of 30 patients from the National Cancer Institute (INCA) the workload multiplier factors for intensity modulated radiotherapy (IMRT factor) and for RapidArc™ (RA factor) were established. Four different routines in a 6 MV generic accelerator were proposed to estimate the impact of these modified workloads in the building cost of the secondary barriers. The results indicate that if 50% of patients are treating with IMRT, the secondary barrier becomes 14,1% more expensive than the barrier calculated for conformal treatments exclusive. While RA, in the same proportion, leads to a barrier only 3,7% more expensive. Showing that RA can, while reducing treatment time, increase the proportion of patients treated with modulation technique, without increasing the cost of the barrier, when compared with IMRT. (author)

  12. Preparation of nano composite latex of poly(butyl acrylate-co-methyl methacrylate) P (BA-co-MMA) and layered double hydroxide (LDH) by mini emulsion polymerization; Preparacao de latex nanocomposito de poli(acrilato de butila-co-metacrilato de metila) P (BA-co-MMA) e hidroxido duplo lamelar (HDL) por meio da tecnica de polimerizacao em miniemulsao

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Rodrigo D; Lona, Liliane M.F., E-mail: liliane@feq.unicamp.br [Universidade Estadual de Campinas - Unicamp, Faculdade de Engenharia Quimica, SP (Brazil); Dube, Marc A [Universidade de Ottawa. Departamento de Engenharia Quimica e Biologica, Ottawa, ON (Canada)

    2011-07-01

    In the present work, the synthesis of polymeric nonconsumption (PNCs) of P(BA-coMMA) and layered LDH through mini emulsion polymerization (MEP) was studied. The commercial organically modified LDH Perkalite F100S was used as filler and octadecyl acrylate (ODA) as costabilizer of the mini emulsions. Two types of surfactant, a cationic and nonionic one, were investigated and the cationic one could not stabilize the system when the LDH was present. The polymerization kinetics was not significantly affected by the presence of LDH which kept the pH of the system constant during the reaction. The dispersion of the inorganic material in the polymeric matrix was evaluated by X-ray diffraction which suggested exfoliation of the LDH. (author)

  13. Inorganic elements determination in human and animal whole blood samples by X-ray fluorescence technique (EDXRF); Determinacao de elementos quimicos inorganicos em amostras de sangue total humano e de animais de experimentacao (hamster dourado e cavalo da raca crioula) pela tecnica de fluorescencia de raios X (EDXRF)

    Energy Technology Data Exchange (ETDEWEB)

    Redigolo, Marcelo Miyada

    2011-07-01

    Blood is a suspension of cells contained in a complex liquid called plasma. The term 'whole blood' refers to samples with both solid and liquid parts. Inorganic elements are responsible for essential functions, such as osmotic regulation, cardiac frequency and contractibility, blood clotting and neuromuscular excitability. The determination of inorganic elements in corporeal fluids such as blood, serum, plasma, tissue and urine is used as a monitor for a part or the whole organism. In this work, the X-Ray fluorescence technique (EDXRF) was used for the determination of inorganic elements in whole blood samples from humans and animals (golden hamsters, Mesocricetus auratus and crioula breed horses, Equus caballus). The reference intervals of Na (1788 - 1826 {mu}g g'-{sup 1}), Mg (63 - 75 {mu}g g{sup -1}), P (602 - 676 {mu}g g{sup -1}), S (1519 - 1718 {mu}g g{sup -1}), Cl (2743 - 2867 {mu}g g{sup -1}), K (1508 - 1630 {mu}g g{sup -1}), Ca (214 - 228 {mu}g g'-{sup 1}), Cu (4 -6 {mu}g g{sup -1}) e Zn (1 - 3 {mu}g g'-{sup 1}) were determined for human blood. The reference intervals, for golden hamster blood were found to be: Na (1714 - 1819 {mu}g g{sup -1}), Mg (51 - 79 {mu}g g{sup -1}), P (970 - 1080 {mu}g g{sup -1}), S (1231 - 1739 {mu}g g{sup -1}), Cl (2775 - 2865 {mu}g g{sup -1}), K (1968 - 2248 {mu}g g{sup -1}), Ca (209 - 257 {mu}g g-1), Cu (4 - 6 {mu}g g{sup -1}) e Zn (3 - 5 {mu}g g{sup -1}). The reference intervals, for crioula breed horse blood, showed to be: Na (1955 - 2013 {mu}g g{sup -1}), Mg (51 - 75 {mu}g g{sup -1}), P (443 - 476 {mu}g g{sup -1}), S (1038 - 1140 {mu}g g{sup -}'1), Cl (2388 - 2574 {mu}g g{sup -1}), K (1678 - 1753 {mu}g g{sup -1}), Ca (202 - 213 {mu}g g{sup -1}), Cu (4,1 - 4,5 {mu}g g{sup -1}) e Zn (2,0 - 2,2 {mu}g g{sup -1}). Comparative study between NAA and EDXRF, both techniques showed the same performance for the analyses of biological matrices. The results contribute for the establishment of reference intervals for the Brazilian healthy population and the referred animal species. (author)

  14. Technical cooperation for the pacific uses of nuclear technology in Latin America and Caribbean: the experience of regional agreement ARCAL; Cooperacao tecnica para os usos pacificos da tecnologia nuclear na America Latina e no Caribe: a experiencia do acordo regional ARCAL

    Energy Technology Data Exchange (ETDEWEB)

    Rondinelli Junior, Francisco

    2017-11-01

    This thesis studies the international technical cooperation in the field of peaceful applications of the nuclear technology, focusing on the experience of Latin American countries, where the Cooperation Agreement for the Promotion of Nuclear Science and Technology in Latin America and the Caribbean, also known as ARCAL, is in force. The study adopts as theoretical approach the concept of state capacities, particularly with regard to the institutional capacities applicable to the ARCAL Agreement. Within this approach, three dimensions of analysis are adopted: the institutional dimension, the governance dimension and the focus on outcomes. The evaluation of the ARCAL Agreement is carried out in order to confirm if the intended role to promote regional technical cooperation in the nuclear sector is being implemented. The methodological approach adopted the case study model. It starts with the analysis of the institutional evolution of the Agreement, and identifies variables articulating with the three dimensions above mentioned. The empirical data were collected in two stages. In the first stage it were performed 29 interviews carried out by the author with the technical and staff members of the Department of Technical Cooperation of IAEA, in Vienna, Austria, headquarter of IAEA. The other stage involved an electronic questionnaire submitted to the national coordinator of ARCAL in 14 countries, in a universe of 21 member states. The conclusion of the research points to the fact that the ARCAL Agreement has incorporated, throughout its trajectory, elements of the institutional capacities which are still in the process of development. They give to the Agreement the potential to induce the development of the state capacities of the respective countries in the field of peaceful applications of nuclear technology. (author)

  15. Bottom sediment transport by radioactive tracer techniques off a stretch of the southern coast from Sao Paulo State - Brazil; Trasnporte do sedimento de fundo por tecnicas de tracadores radioativos ao largo de trecho da costa sul do Estado de Sao Paulo - Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Bomtempo, V.L. [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG (Brazil)

    1995-12-31

    This paper presents the methodology and results obtained with radioactive tracer techniques as applied to study sea-bottom sediments movements off a stretch of the southern coast of Sao Paulo State, Brazil, namely Praia do Una. Three injections of ground glass containing Iridium-192 were made and the behaviour of this material was tracked by special detection techniques, as it was acted upon by hydrodynamic agents, in two distinct periods of the year of 1982 (summer and winter). Measurement of hydrodynamic parameters was conducted simultaneously with tracer experiments. From the experiments with radioactive tracers, combined with other conventional studies, qualitative and quantitative conclusions could be drawn, as follows: waves are the prevailing agents in moving bottom sediments; during summer time, onshore and alongshore transport can be identified; during winter time, offshore and alongshore transport are present; for summer conditions, Massif transport rate was estimated to be 150 kg m{sup -1} day {sup -1}. (author). 2 refs, 3 figs.

  16. Experimental verification for in vitro technique confirmation of bystander effect induced by gamma radiation in CHO-K1 cell line; Verificacao experimental para confirmacao da tecnica in vitro do efeito bystander induzido por radiacao gama na linhagem celular CHO-K1

    Energy Technology Data Exchange (ETDEWEB)

    Viana, P.H.L.; Goes, A.M.; Gomes, D.A., E-mail: pedroleroybio@hotmail.com [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil). Departamento Bioquimica e Imunologia. Lab. de Imunologia Celular e Molecular; Grynberg, S.E., E-mail: seg@cdtn.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2013-08-15

    The bystander effect refers to biological responses detected in cells not directly irradiated but influenced, somehow, by signals transmitted from neighboring irradiated cells. These biological responses include sister chromatid exchange, mutations, micronucleus formation, chromosomal aberrations, carcinogenesis, apoptosis and necrosis. Although its existence is unquestionable, the mechanisms involved on triggering the bystander effect are not yet completely elucidated. Previous studies have shown that the bystander effect depends on a large variety of parameters including the radiation dose, the dose rate, the type of radiation and type of cells or tissue. This study aims to confirm the technique previously used in the literature in human cell lines for the bystander effect verification. The results suggest that the working conditions adopted by the group show technical efficiency and enables the reproduction of the bystander effect. (author)

  17. Characterization and obtainment of thin films based on N,N,N-trimethyl chitosan and heparin through the technical layer-by-layer; Caracterizacao e obtencao de filmes finos de N,N,N-trimetil quitosana e heparina atraves da tecnica layer-by-layer

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-07-01

    Thin films of Heparin (HP) and N,N,N-trimethyl chitosan (TMC) with a high degree of quaternization (DQ) were obtained at pH 7.4 through the layer-by-layer (LbL) technique. Polystyrene (PS) was oxidized with aqueous solution of sodium persulfate and subsequently employed as substrate. The characterization of TMC and the respective determination of DQ were performed through {sup 1}H NMR spectroscopy. The thin films de TMC/HP were characterized by FTIR-ATR and AFM. Both techniques confirmed the adsorption of TMC and HP in surface of the PS. The increasing of the bilayers provides a decrease of the projections and/or roughness, further of minimizing the depressions at the surface of the films. Studies of thin films the base of TMC/HP prepared from the LbL technique has not been reported in the literature. It is expected that the thin films of TMC/HP present anti-adhesive and antimicrobial properties. (author)

  18. Effect of Ca and Li additions on densification and electrical conductivity of 10 mol% gadolinia-doped ceria prepared by the coprecipitation technique; Efeito de adicoes de litio e calcio na densificacao e na condutividade eletrica da ceria-10% mol gadolinia preparada pela tecnica de co-precipitacao

    Energy Technology Data Exchange (ETDEWEB)

    Porfirio, T.C.

    2010-07-01

    Ceria containing rare-earth ceramics are potential candidates for application in intermediate-temperature solid oxide fuel cells. One of the main problems related to these ceramic materials is their relatively low sinterability. In this work, the effects of Ca and Li additions on densification and electrical conductivity of 10 mol% gadolinia-doped ceria was investigated. Ceramic compositions containing 1.5 mol% Ca or Li were prepared by the oxalate coprecipitation technique. Results of sintered density and electrical conductivity were compared to those of ceramic samples obtained by solid state reactions showing the effects of the synthesis method on densification and total electrical conductivity of the sintered materials. (author)

  19. Study of deformation and fracture micro mechanisms of titanium alloy Ti-6Al-4V using electron microscopy and and X-ray diffraction techniques; Estudo dos micromecanismo de deformacao e fratura da liga de titanio Ti-6Al-4V utizando-se tecnicas de microscopia eletronica e difracao de raios X

    Energy Technology Data Exchange (ETDEWEB)

    Morcelli, Aparecido Edilson

    2009-07-01

    This present work allowed the study of deformation and fracture micro mechanisms of titanium alloy Ti-6Al-4V, used commercially for the manufacture of metallic biomaterials. The techniques employed for the analysis of the material under study were: scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The study of the influence and behavior of the phases present in titanium alloys is important to evaluate the behavior of cracks in titanium alloys with high mechanical strength, which have fine alpha ({alpha}), beta ({beta}) and ({alpha}{+-}{beta}) microstructure, linking the presence of the phases with the strength of the material. The evaluation in situ of deformation and fracture micro mechanisms were performed by TEM and was also a study of phase transformations during cooling in titanium alloys, using the techniques of bright field, dark field and diffraction of electrons in the selected area. After heat treatment differences were observed between the amount of in relation to the original microstructure of the {beta} and {alpha} phases material for different conditions used in heat treatment applied to the alloy. The presence of lamellar microstructure formed during cooling in the {beta} field was observed, promoting the conversion of part of the secondary alpha structure in {beta} phase, which was trapped between the lamellar of alpha. (author)

  20. 75 FR 75868 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Science.gov (United States)

    2010-12-07

    ... Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes AGENCY: Federal... of the Thielert Engine Owners Group commented that the Model DA 42 has the same door design and the same unsafe condition. He recommended that the AD also apply to the Model DA 42. The FAA has discussed...

  1. Characterisation of gas and particle emissions from wildfires =

    Science.gov (United States)

    Vicente, Ana Margarida Proenca

    carbono orgânico e elementar (tecnica termo-optica), ioes soluveis em agua (cromatografia ionica) e elementos (espectrometria de massa com plasma acoplado por inducao ou analise instrumental por ativacao com neutroes). A especiacao orgânica foi obtida por cromatografia gasosa acoplada a espectrometria de massa apos extracao com recurso a varios solventes e separacao dos extratos orgânicos em diversas classes de diferentes polaridades atraves do fracionamento com silica gel. Tendo em conta que a estimativa das emissoes dos incendios florestais requer um conhecimento de fatores de emissao apropriados para cada biocombustivel, a base de dados abrangente obtida neste estudo e potencialmente util para atualizar os inventarios de emissoes. Tem vindo a ser observado que a fase de combustao latente sem chama, a qual pode ocorrer simultaneamente com a fase de chama e durar varias horas ou dias, pode contribuir para uma quantidade consideravel de poluentes atmosfericos, pelo que os fatores de emissao correspondentes devem ser considerados no calculo das emissoes globais de incendios florestais. Devido a falta de informacao detalhada sobre perfis quimicos de emissao, a base de dados obtida neste estudo pode tambem ser util para a aplicacao de modelos no recetor no sul da Europa. (Abstract shortened by ProQuest.).

  2. Estudo da Concentração de Mercado ao Longo da Cadeia Produtiva da Soja no Brasil

    Directory of Open Access Journals (Sweden)

    Nilson Luiz Costa

    2014-12-01

    Full Text Available O objetivo da presente pesquisa foi mensurar a concentração de mercado ao longo da cadeia produtiva da soja. A partir dessas informações tornou-se possível avaliar se as estratégias para manter e ampliar o poder de mercado e a governança ao longo da cadeia produtiva da soja resultam em sucesso, captação do excedente do produtor rural de soja e competitividade da agroindústria processadora do grão. Neste contexto, foram calculados o Market Share, a Relação de Concentração e do Índice de Herfindahl-Hirschmann. Confirmou-se a hipótese de que o mercado que fornece insumos para os produtores rurais de soja está altamente concentrado. A hipótese de elevada concentração no segmento de aquisição e processamento da soja também foi confirmada.  Concluiu-se que o produtor rural de soja encontra-se em situação de fragilidade econômica, pois: a adquire insumos em mercado oligopolizado e vende a produção em mercado oligopsonizado; b as empresas dominantes estão protegidas por barreiras à entrada. Diante deste cenário e das análises realizadas, cabe ao Estado brasileiro definir a forma de inserção dos agentes nacionais, em especial do produtor rural: se será caracterizado como um instrumento de acumulação do capital internacional ou se participará dos ganhos e se constituirá como agente de desenvolvimento regional. 

  3. A LEITURA DA GRAMÁTICA DA FORMA DO CONJUNTO HABITACIONAL CAMPINAS-F DA CDHU EM CAMPINAS

    Directory of Open Access Journals (Sweden)

    Marcelo de Morais

    2014-12-01

    Full Text Available A gramática da forma constitui uma importante ferramenta que pode dar suporte para futuros estudos e melhor qualidade em conjuntos habitacionais. A utilização de sistemas generativos de projeto pode aperfeiçoar uma série de rotinas de projeto, potencializando seu uso com outras ferramentas de informática. Este trabalho apresenta os resultados de estudo exploratório com um sistema generativo de projeto em processo de simulação e imersão, por meio do qual se pode avaliar o desenvolvimento e as alterações do projeto de implantação de conjunto habitacional social, ocasionadas pela variação das regras nos algoritmos criados. Inicialmente, se realizou a leitura Analítica da Gramática da Forma de um Conjunto Habitacional específico e, posteriormente, simulou-se em ferramenta computacional a Gramática da Forma Paramétrica, para futuros estudos de melhorias em conjuntos habitacionais similares. Tal ferramenta visa desenvolver soluções inovadoras em tecnologia da informação e comunicação aplicadas à construção e arquitetura. Os resultados demonstram a potencialidade do uso da Gramática da Forma, permitindo a inserção de novos parâmetros a cada momento, criando a perspectiva de flexibilidade na concepção e gerando diversas possibilidades que podem ser analisadas e comparadas durante o processo de tomada de decisão do projeto.

  4. Corrimentos vaginais em gestantes: comparacao da abordagem sindromica com exames da pratica clinica da enfermagem

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    Thais Marques Lima

    2013-12-01

    Full Text Available Estudo avaliativo de abordagem quantitativa, com amostra de 104 gestantes, com o objetivo de comparar os achados de infecções vaginais em gestantes obtidos por meio do fluxograma de corrimento vaginal com exames presentes na prática clínica da Enfermagem. Os dados foram coletados por meio de entrevista e exame ginecológico realizados de janeiro a julho de 2011. O fluxograma não se mostrou eficaz na identificação de candidíase e tricomoníase, apresentou baixa sensibilidade (0,0%; 50% e valor preditivo positivo (0,0%; 3,6% para as duas infecções e baixa especificidade para tricomoníase (46%. Mostrou-se satisfatório para vaginose bacteriana, com alta sensibilidade (100%, valor preditivo negativo (100% e acurácia (74%. Conclui-se que o emprego do fluxograma precisa ser reavaliado, visto que não foi eficaz em identificar infecções importantes em gestantes. Os esforços para o desenvolvimento de testes eficazes devem ser contínuos, com intuito de prevenir a disseminação de infecções e reduzir tratamentos desnecessários.

  5. Pesquisa como instrumento da prática

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    Maura Maria Guimarães de Almeida

    1995-06-01

    Full Text Available O trabalho aborda a utilização da pesquisa como instrumento da prática profissional da enfermaria na área de assistência, administração e ensino. Situa a ciência como processo. Ressalta a responsabilidade da enfermeira na produção da conhecimento científico. Destaca os fatores que dificultam e facilitam a pesquisa, além dos aspectos éticos envolvidos.

  6. Parâmetros erosividade da chuva, da enxurrada e da chuva-enxurrada correlacionados com as perdas de solo de um luvissolo

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    A. W. Albuquerque

    2002-09-01

    Full Text Available Foram estudadas as correlações lineares simples, múltiplas e não-lineares entre os parâmetros erosividade da chuva, da enxurrada e da chuva-enxurrada e as perdas de solo provocadas por chuvas erosivas num Luvissolo. Os dados correspondentes ao período de 1986-1990 foram obtidos na estação experimental de Sumé (PB, pertencente à Universidade Federal da Paraíba - UFPB. Para determinar os parâmetros erosividade da chuva, da enxurrada e da chuva-enxurrada, foram analisadas chuvas individuais registradas em 136 pluviogramas. O volume de enxurrada isolado ou em combinação com características da chuva contribuiu, de forma significativa, para melhorar a estimativa das perdas de solo de chuvas individuais. Os parâmetros erosividade da chuva-enxurrada a(Vu α I30b; a(Vu α I5b; a(EIAb e da enxurrada a(Vub foram os melhores estimadores das perdas de solo para chuvas individuais. Dentre os parâmetros da erosividade da chuva, os que melhor se correlacionaram com as perdas de solo foram aqueles que incluíram o produto do volume da chuva pela intensidade máxima em trinta minutos a(VrI30.

  7. Processos da construção da Política Nacional de Promoção da Saúde

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    João Leite Ferreira Neto

    2013-10-01

    Full Text Available Investigou-se os processos de construção da Política Nacional de Promoção da Saúde (PNPS, pela análise de três documentos produzidos pelo Ministério da Saúde entre 2002 e 2005 e do texto final da PNPS. Foram entrevistados cinco sujeitos que participaram da construção da PNPS, dos quais três eram gestores do Ministério da Saúde e dois pesquisadores. Os documentos foram explorados com a Análise do Discurso. O artigo contribui para aprofundar os debates sobre o processo de construção da PNPS. A promoção da saúde revelou seus antagonismos, o que motivou a demora de sua aprovação final. A indução internacional via financiamento demonstrou ser o elemento crucial para a definição da forma final da PNPS, trazendo de volta a criticada ênfase na mudança de estilos de vida em suas "Ações". Destaca-se o processo de produção negociada de consenso, que culminou com a criação do Comitê Gestor da PNPS, com a participação de diversos subsetores, estrutura inovadora no Ministério da Saúde.

  8. Alegoria da aventura de viver

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    Biagio D'Angelo

    2005-10-01

    Full Text Available Meu diálogo apaixonado com a literatura  brasileira começou com um pe­ queno livro encontrado por casualidade numa biblioteca de minha cida­ de, não muito aberta a experiências intelectuais transoceânicas, num frio dezembro siciliano de 1988. O livro era Miguilim, numa esplêndida tradução de Eduardo Bizzarri, o tradutor "oficial" da obra rosiana na Itália, com prefácio do reconhecido e sensível autor Antonio Tabucchi. Desde aquele ano, uma frase de Tabucchi me suscitou  atenção, inquietude,  fascinação: "Miguilim está agora em seu cavalo, está partindo, e olha ao entorno. Agora vê o real em seus mais minu­ ciosos contornos. Submerso,  de improviso,  no Agora, o Miguilim afastado do oco do tempo, olha. Mas o que é aquele olhar e o que significa?" Curioso, iniciei a leitura das obras que achava nas livrarias, pergun tando, com olhos inquisidores -como os do pequeno Miguilim -se conheciam e se tinham um autor  brasileiro com nome de atriz do neorealismo  italiano... Entrei, assim, no Sertão. Uma frase de Grande sertão: veredas funcionou  como introdução à viagem pelo sertão  e pelo universo  de Guimarães  Rosa: "Vivendo se aprende; mas o que se aprende, mais, é só a fazer outras maiores perguntas" (ROSA, 1958, p. 389-390.

  9. Energy education; Pedagogia da energia

    Energy Technology Data Exchange (ETDEWEB)

    Muniz, Rafael Ninno, e-mail: rafaelninno@gmail.com

    2006-07-01

    'Pedagogia da Energia' (energy education) is a qualification course that has as intention to unite ambient education with renewable energies through the art-education and of the long-distance education. Collective made up of theoretical and practical activities through group dynamic and works, with intention to integrate and to enable the participants as a whole, aiming to form potentials to agreement and diffusion of energy concepts of the subjects environment - energy - residues. It possess the structure of an actual course with support of long-distance education with a platform of available web education in the Internet, where the participants have access the all content used in the course (texts, presentations and figures), virtual library, colloquy room, thematic list of quarrel and forum, beyond guardianship accompaniment. A structure constructed in classroom for the participants uses as pedagogical tool titled 'Mandala das Energias' where the concepts studied are worked in. The politics characteristics presented are, ambient and social of the use of the power plants and its implications in the daily one of the humanity. It understands the education as a reciprocal process, that understands the intention to teach and to learn in a set of exchanges of necessary information to the curious nature of the human beings. This article explains the structure and methodology of functioning of the course with a summary of the worked chapters. It also presents the pedagogical tool 'Mandala das Energias' and its respective flowchart of energies that originated it in annex at the end of the text. (author)

  10. Estudos organizacionais, (descolonialidade e estudos da dependência: as contribuições da Cepal

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    Sergio Wanderley

    Full Text Available O objetivo deste artigo é (revisitar o conceito de dependência como categoria de investigação da (e a partir da América Latina, por meio de uma perspectiva histórica crítica descolonial, a fim de ampliar o espaço de debates em estudos organizacionais e promover alternativas à ordem neoliberal. Este ensaio terá como foco os estudos da dependência realizados pela Comissão Econômica para a América Latina e o Caribe (Cepal durante a década de 1950 e o início dos anos 1960. A perspectiva descolonial é um constructo teórico de autores latino-americanos que se consideram herdeiros da longa tradição do pensamento social crítico da região, na qual a teoria da dependência está inserida. As propostas dos autores da dependência confrontaram as principais teorias ortodoxas do Norte produzidas à época. A partir do conceito de centro-periferia, da denúncia de assimetrias nas relações entre essas regiões, do reconhecimento da interdependência entre desenvolvimento e subdesenvolvimento, o conceito de dependência foi sendo (reelaborado nas décadas de 1950 e 1960 por diversos autores latino-americanos como uma categoria de investigação da realidade da (e a partir da região. Essas investigações tinham por objetivo não somente elaborar constructos teóricos, mas, também, transformar a realidade por meio da criação de diversas organizações e instituições que deveriam servir ao propósito de superar o subdesenvolvimento. A denúncia da historicidade da situação de subdesenvolvimento desnudou o caráter de neutralidade do economicismo das teorias produzidas no Norte e promoveu um encontro teórico entre economia e política que muito tem a contribuir com a área dos estudos organizacionais.

  11. Determinantes sociais da saude e o Programa Saude da Familia no municipio de Sao Paulo

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    Tatiana Pluciennik Dowbor

    2013-08-01

    Full Text Available OBJETIVO Analisar a situação do trabalho com determinantes sociais da saúde no âmbito do Programa Saúde da Família. MÉTODOS Estudo de caso com métodos mistos de pesquisa, ancorados em estratégia sequencial explanatória, com 171 gerentes das unidades do Programa Saúde da Família em São Paulo, SP, em 2005/2006. Questionários autopreenchíveis foram aplicados. Entrevistas semiestruturadas e grupos focais foram realizados com amostra intencional de profissionais envolvidos no trabalho com determinantes sociais da saúde. Os dados quantitativos foram analisados por análise descritiva, análise de correspondência múltipla, análise de agrupamento e testes de correlação entre variáveis. Os dados qualitativos foram apurados por análise de conteúdo e a criação de categorias temáticas. RESULTADOS Apesar da concentração de atividades direcionadas ao cuidado com a doença, o Programa Saúde da Família realizou atividades relacionadas à determinação social da saúde, contemplando todas as formas de abordagem da promoção da saúde (biológico, comportamental, psicológico, social e estrutural e os principais determinantes sociais da saúde descritos na literatura. Houve diferença significativa quanto à abrangência dos determinantes trabalhados nas unidades em relação às diferentes regiões do município. Constatou-se fragilidade das iniciativas e a sua desconexão com a estrutura programática do Programa Saúde da Família. CONCLUSÕES A quantidade e variedade de atividades com determinantes sociais da saúde realizadas no Programa Saúde da Família mostram potencial para trabalhar a determinação social da saúde. Mas a fluidez de objetivo e o caráter extraordinário das atividades descritas questionam sua sustentabilidade como parte integral da atual estrutura organizacional do programa.

  12. DETERMINANTES DA DIVULGAÇÃO DOS INDICADORES DE DESEMPENHO DA GRI NAS EMPRESAS DO BRASIL E DA ESPANHA

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    Alan Diógenes Góis

    2015-01-01

    Full Text Available O estudo tem por objetivo investigar os fatores determinantes da divulgação dos indicadores de desempenho de sustentabilidade da GRI nas empresas listadas nas bolsas do Brasil e da Espanha. Para tanto, foram analisados os dados de 94 empresas de capital aberto dos dois países que publicaram relatórios anuais e/ou de sustentabilidade, referentes a 2011, no padrão GRI-G3. A pesquisa é descritiva, com abordagem quantitativa dos dados, utilizando-se a Regressão Linear Múltipla para quatro modelos de disclosure (econômico, ambiental, social e de sustentabilidade. Os resultados mostram que as empresas da Espanha apresentam um nível de disclosure de sustentabilidade mais elevado, e que o nível de evidenciação geral, considerando o conjunto das dimensões da sustentabilidade (econômica, social e ambiental, corresponde a 72,7%. Quanto ao resultado dos modelos de regressão, observa-se que as variáveis independentes (Tamanho, Rentabilidade, Endividamento, Auditoria, Setor de Impacto Ambiental e Idade não explicam o disclosure econômico; porém, quanto aos disclosures ambiental, social e de sustentabilidade, as variáveis Tamanho e Idade são fatores determinantes.

  13. ANÁLISE EXPERIMENTAL DA INFLUÊNCIA DA TECNOLOGIA HOMEPLUG NA QUALIDADE DA ENERGIA ELÉTRICA

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    Antonio Luiz Pereira de Siqueira Campos

    2008-03-01

    Full Text Available Trabalhos recentes têm estudado características do meio elétrico para a transmissão de dados, ruídos e técnicas empregadas na comunicação pela rede elétrica. A maioria dos trabalhos limita-se a fazer testes de desempenho do protocolo. Diversos pesquisadores têm se preocupado com a influência das transmissões de dados na rede elétrica sobre as comunicações sem fio, mas ninguém tem se preocupado com a influência dessas transmissões na qualidade da energia elétrica. Este trabalho apresenta resultados preliminares sobre o efeito produzido por redes de computadores que utilizam a tecnologia Homeplug 1.0 na qualidade da energia elétrica. Para isso, foram escolhidos parâmetros apropriados para análise da qualidade da energia elétrica, bem como, foram definidas as formas de se obter esses parâmetros. Foi montada uma rede de computadores, com modem’s PLC, no CEFET-RN e realizados testes iniciais para medição da qualidade de energia elétrica. Resultados numéricos são apresentados.

  14. A Economia da Família

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    Ladislau Dowbor

    2015-04-01

    Full Text Available A família pode ser vista como unidade de reprodução econômica: pais sustentam filhos e idosos, e serão por sua vez sustentados. Hoje, com a desarticulação da família - nos EUA apenas 26% dos domicílios tem pais e filhos -, a fragilização do Estado e a privatização dos serviços sociais, é o próprio processo de redistribuição do excedente social entre gerações que se vê prejudicado. A dinâmica econômica ajuda a entender os impactos muito mais amplos, como a tensão entre gerações, a redução da sociabilidade e o sentimento crescente de angústia que se generaliza. A fase não produtiva da infância e da juventude, bem como da terceira idade, está se prolongando de maneira muito significativa. Foi-se o tempo em que a criança de 10 anos já ia para a roça ajudar o pai, e em que os pais faleciam quando os filhos chegavam à maturidade. Os desafios são econômicos, mas também sociais e culturais, em particular nas grandes cidades. É a própria base econômica da reprodução da sociedade que está se deslocando.

  15. Responsabilidade Social das empresas: a contraface da sociedade civil e da cidadania

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    Simionatto, Ivete

    2006-01-01

    Full Text Available O artigo tem como objeto o estudo das mudanças que vêm ocorrendo nas relações entre Estado e sociedade civil e sua manifestação específica nas propostas articuladas em torno da responsabilidade social das empresas. Parte-se da hipótese de que estas práticas vêm contribuindo para a formação de consensos que fortalecem a hegemonia do capital na atualidade, mediante a redução do papel do Estado e o fortalecimento da esfera privada como setor de regulação social. Este cenário indica mudanças nas relações entre Estado e sociedade civil, uma vez que a responsabilidade social das empresas manifesta-se como uma nova proposta de sociabilidade e de resposta às expressões da questão social. Por fim, identifica-se que os serviços sociais oferecidos através da responsabilidade social fortalecem o campo do voluntariado, da solidariedade e das instituições do terceiro setor, precarizam o trabalho do Assistente Social com rebatimentos na esfera da cidadania e dos demais valores e princípios que sustentam o projeto ético-político da profissão

  16. A inclusão da subjetividade no ensino da Psicopatologia

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    Octavio Domont de Serpa Junior

    2007-08-01

    Full Text Available O estudo da Psicopatologia tem sido freqüentemente apresentado em sua dimensão descritiva. Apesar da relevância para o ensino - auxiliar o aluno a reconhecer a dimensão sintomatológica dos quadros psicopatológicos -, exclui a dimensão subjetiva da experiência do adoecimento e seus aspectos relacionais. Partindo da tradição antropológico-existencial, apresentamos uma experiência de ensino de Psicopatologia que considera tais dimensões relevantes para a compreensão do sofrimento mental. Trabalhando com estudo de caso descritivo, são apresentadas duas novas modalidades de práticas na disciplina Psicopatologia Especial I, oferecida para alunos do curso de Psicologia da UFRJ. A proposta é ampliar o ensino prático, tradicionalmente centrado no modelo da extensa entrevista clínica, realizada diante de um grande grupo de alunos que a tudo assistem passivamente. Pretendemos aproximar o ensino e a prática da Psicopatologia dos ideais da Reforma Psiquiátrica Brasileira, que concebe o adoecimento mental como fenômeno complexo, envolvendo a relação do sujeito com o mundo.

  17. Várias Marias: efeitos da Lei Maria da Penha nas delegacias

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    Roberta Carvalho Romagnoli

    2015-08-01

    Full Text Available Este artigo discute os dados qualitativos da pesquisa “Violência Doméstica perpetrada contra a mulher no município de Montes Claros: um recorte possível”, financiada pelo CNPq e pela FAPEMIG. O objetivo do estudo foi investigar quantitativamente e qualitativamente os atos violentos contra as mulheres na cidade de Montes Claros, Minas Gerais. A vertente qualitativa pretendia conhecer o sentido da violência para as mulheres envolvidas e seus reflexos na família, através de entrevistas semiestruturadas que não se efetivaram. A partir da Análise Institucional de René Lourau analisamos essa inviabilidade como dado qualitativo, examinando o cotidiano da delegacia após a lei Maria da Penha. Concluímos que a intervenção judicial não é suficiente para a inibição da violência contra a mulher, pois em certos casos afasta da delegacia mulheres com outras demandas acerca da violência, que sofrem e que não podem contar com a ajuda policial para a resolução dos seus conflitos.

  18. "Geografia da Fome": da lógica regional à universalidade

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    Arruda Bertoldo Kruse Grande de

    1997-01-01

    Full Text Available Geografia da Fome revela a associação harmoniosa da capacidade de argumentar com a segurança científica, um novo modo de pensar e de agir frente à realidade alimentar e nutricional e também uma abordagem pioneira no dimensionamento da fome coletiva como um fenômeno geograficamente universal. Admitiu, com base nas especificidades regionais, que as contribuições parciais poderiam compor um mapeamento caracterizador da universalidade do problema, permitindo construir uma imagem diferente do Brasil e do mundo, possibilitando a estruturação de um plano universal de combate à fome, abrindo novos caminhos para aqueles que buscam a correção de desequilíbrios regionais e a eliminação do subdesenvolvimento. Nesse livro-manifesto, Josué de Castro reinterpretou o papel da geografia clássica, incorporando uma das dimensões explicativas mais importantes, que é a da análise política, para desvendar a significação e conseqüências do desenvolvimento espacial desigual. A releitura de Geografia da Fome mostra que seus delineamentos conceituais e propositivos continuam vivos e constituem instrumentos indispensáveis para repensar criticamente a realidade brasileira e, em particular, a nordestina. Geografia da Fome, no seu cinqüentenário, torna-se um livro atual pela sua mensagem estimuladora e perturbadora.

  19. "Geografia da Fome": da lógica regional à universalidade

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    Bertoldo Kruse Grande de Arruda

    1997-09-01

    Full Text Available Geografia da Fome revela a associação harmoniosa da capacidade de argumentar com a segurança científica, um novo modo de pensar e de agir frente à realidade alimentar e nutricional e também uma abordagem pioneira no dimensionamento da fome coletiva como um fenômeno geograficamente universal. Admitiu, com base nas especificidades regionais, que as contribuições parciais poderiam compor um mapeamento caracterizador da universalidade do problema, permitindo construir uma imagem diferente do Brasil e do mundo, possibilitando a estruturação de um plano universal de combate à fome, abrindo novos caminhos para aqueles que buscam a correção de desequilíbrios regionais e a eliminação do subdesenvolvimento. Nesse livro-manifesto, Josué de Castro reinterpretou o papel da geografia clássica, incorporando uma das dimensões explicativas mais importantes, que é a da análise política, para desvendar a significação e conseqüências do desenvolvimento espacial desigual. A releitura de Geografia da Fome mostra que seus delineamentos conceituais e propositivos continuam vivos e constituem instrumentos indispensáveis para repensar criticamente a realidade brasileira e, em particular, a nordestina. Geografia da Fome, no seu cinqüentenário, torna-se um livro atual pela sua mensagem estimuladora e perturbadora.

  20. USO DA SISTEMATIZAÇÃO DA ASSISTÊNCIA DE ENFERMAGEM (SAE: UMA FERRAMENTA PARA REALIZAÇÃO DA AUDITORIA DE QUALIDADE

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    Maria Izelta da Silva Santos

    2013-04-01

    Full Text Available Realizar uma revisao bibliografica acerca da Sistematização da Assistencia de Enfermagem (SAE como instrumento para auditoria de qualidade. Metodos: Foram revisados 12 artigos cientificos sobre auditoria e 10 artigos sobre SAE, bem como dois livros sobre os assuntos abordados. Esta revisao e de carater descritivo. Resultados: Por meio da pesquisa, tornou-se evidente a correlação da SAE com a auditoria. A SAE bem implementada pode contribuir para uma auditoria de qualidade.

  1. Gestões do desenvolvimento e desenvolvimentos da gestão: da unilateralidade reificada à dialogicidade da simbiose homem/natureza

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    Carlos Eduardo Justen

    Full Text Available Este artigo, ao situar culturalmente os fenômenos da gestão e do desenvolvimento, em sua concepção tradicional, no projeto da modernidade e ao identificar o predomínio da unilateralidade reificada na interface entre gestão e desenvolvimento - a primeira vista como instrumento técnico submisso à via clássica do segundo - almeja evidenciar as potencialidades da compreensão e da construção de alternativas, tanto para a gestão como para o desenvolvimento, a partir da ressignificação dessa interface. Para tanto, o esforço foi direcionado ao resgate do que é comum aos fenômenos da gestão e do desenvolvimento - os substratos antropológico e ecológico -, nucleados nos princípios da reciprocidade dialógica, concretizadora da condição antropológica, e da finitude, caracterizadora da condição ecológica. Ao final, são apresentadas oito potenciais contribuições advindas da exploração renovada da interface entre a gestão e o desenvolvimento. Propôs-se, ainda, a substituição da lógica instrumental da eficiência financeira, comum à concepção tradicional dos fenômenos estudados, pela lógica da simbiose dialógica homem/natureza, uma vez que, como fenômenos sociais, desenvolvimento e gestão, mediados pelo meio, também são ecológicos em sua essência.

  2. A Liberdade da Imprensa Agrilhoada

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    Marco Aurelio Peri Guedes

    2010-12-01

    Full Text Available O presente trabalho aborda caso decidido no ano de 2009 - MCRecl. nº 9.428 - pelo STF, envolvendo possível censura ao jornal O Estado de São Paulo. O jornal publicou matéria sobre operação da Polícia Federal designada Boi Barrica, envolvendo entre tantas outras pessoas o empresário Fernando Sarney, filho do então presidente do Senado José Sarney. O empresário, então, ingressa com ação junto ao T.J.D.F. a fim de tutelar o seu direito fundamental à intimidade, que estaria sendo violado pelo jornal. Medida liminar favorável lhe é concedida por desembargador daquele tribunal, que havia sido anteriormente indicado politicamente pelo Senador José Sarney – pai do empresário. Sem o conhecimento de todos os detalhes, poderíamos dizer que ponderação de interesses foi realizada – liberdade de imprensa e direito à privacidade - e direitos fundamentais foram protegidos, tendo o poder judiciário agido proativamente em sua defesa – sob uma leitura de ativismo judicial. Contudo, o que se observou foi a expressão de práticas oligárquicas a influenciar politicamente a composição do poder judiciário com vistas a dirigir suas decisões, denotando a força do patrimonialismo na república e a fragilidade de nossa constituição. Assim, teria se estabelecido uma censura em via oblíqua à liberdade de imprensa em plena vigor de um Estado democrático e social de direito, a ferir mortalmente nossas liberdades públicas e a constituição. Lembre-se que a constituição de 1988 veda todas as formas de censuta. Precisamos compreender o significado desta decisão e reverter este quadro de insegurança à liberdade de imprensa.

  3. Acompanhamento de familias de criancas com doenca cronica: percepcao da equipe de Saude da Familia

    Directory of Open Access Journals (Sweden)

    Etelvaldo Francisco Rego Sousa

    2013-12-01

    Full Text Available Este estudo objetivou caracterizar como a equipe da Estratégia Saúde da Família percebe sua dinâmica de acompanhamento de famílias que convivem com a doença crônica da criança. Trata-se de uma pesquisa qualitativa que teve como referencial teórico o Interacionismo Simbólico e como método a Análise de Conteúdo, técnica de análise categorial temática. Para a coleta de dados utilizou-se o grupo focal, que foi desenvolvido com três equipes de Saúde da Família, totalizando 32 sujeitos. Os resultados foram organizados em três categorias temáticas: Peculiaridades das famílias que convivem com a doença crônica da criança; Equipe, família e Estratégia Saúde da Família e Limitações para cuidar. A percepção da equipe é que o desenho da Estratégia Saúde da Família favorece o acesso à experiência familiar, permitindo o reconhecimento de suas especificidades. Os dados revelam ainda as limitações da equipe em sua capacidade de resolução e a necessidade de investimentos na articulação entre os distintos serviços, setores e equipamentos sociais.

  4. ATLAS BigPanDA Monitoring

    CERN Document Server

    Padolski, Siarhei; The ATLAS collaboration; Klimentov, Alexei; Korchuganova, Tatiana

    2017-01-01

    BigPanDA monitoring is a web based application which provides various processing and representation of the Production and Distributed Analysis (PanDA) system objects states. Analyzing hundreds of millions of computation entities such as an event or a job BigPanDA monitoring builds different scale and levels of abstraction reports in real time mode. Provided information allows users to drill down into the reason of a concrete event failure or observe system bigger picture such as tracking the computation nucleus and satellites performance or the progress of whole production campaign. PanDA system was originally developed for the Atlas experiment and today effectively managing more than 2 million jobs per day distributed over 170 computing centers worldwide. BigPanDA is its core component commissioned in the middle of 2014 and now is the primary source of information for ATLAS users about state of their computations and the source of decision support information for shifters, operators and managers. In this wor...

  5. O crivo da cultura em Die Ausgesperrten

    Directory of Open Access Journals (Sweden)

    Dionei Mathias

    2015-06-01

    Full Text Available O romance Die Ausgesperrten (‘Os excluídos’, publicado em 1980 pela autora austríaca Elfriede Jelinek, discute a questão do ódio em diferentes estratos sociais e as formas como essa emoção é articulada no contexto social. Assim, o ódio é representado nos primeiros círculos de socialização (na família e na escola, mais tarde surge também em esferas sociais mais complexas. Em todos esses espaços, os personagens se utilizam de discursos diversos para legitimá-lo, evidenciando a labilidade da cultura como barreira discursiva do princípio da violência. Apesar da maleabilidade da cultura no processo de configuração dessa emoção e sua livre exposição, os protagonistas acabam confrontados com um excesso emocional não compreendido, levando um à afasia e outro à destruição da família, com o objetivo de calar o indesejado.

  6. ATLAS BigPanDA Monitoring

    CERN Document Server

    Padolski, Siarhei; The ATLAS collaboration

    2017-01-01

    BigPanDA monitoring is a web-based application that provides various processing and representation of the Production and Distributed Analysis (PanDA) system objects states. Analysing hundreds of millions of computation entities such as an event or a job BigPanDA monitoring builds different scale and levels of abstraction reports in real time mode. Provided information allows users to drill down into the reason of a concrete event failure or observe system bigger picture such as tracking the computation nucleus and satellites performance or the progress of whole production campaign. PanDA system was originally developed for the Atlas experiment and today effectively managing more than 2 million jobs per day distributed over 170 computing centers worldwide. BigPanDA is its core component commissioned in the middle of 2014 and now is the primary source of information for ATLAS users about state of their computations and the source of decision support information for shifters, operators and managers. In this work...

  7. Influência da nutrição mineral foliar sobre doenças da parte aérea da cultura do trigo

    Directory of Open Access Journals (Sweden)

    Rafael Gustavo Ferreira Morales

    2012-02-01

    Full Text Available A utilização de fungicida para o controle de doenças foliares na cultura do trigo é prática comum entre os triticultores. Contudo, devido ao impacto ambiental provocado pelo seu uso generalizado, buscam-se alternativas para controle dos fitopatógenos. Sendo assim, este trabalho teve como objetivo avaliar o efeito da nutrição mineral foliar sobre as doenças foliares do trigo, bem como seu efeito sobre o desenvolvimento da planta. O delineamento experimental foi em blocos casualizados com quatro repetições e quatro tratamentos: 1- testemunha; 2- adubação foliar aos 30 dias após a emergência (DAE e aos 75 DAE; 3- fungicida aos 30 e 75 DAE; e 4- adubação foliar aos 30 DAE e adubação foliar mais fungicida aos 75 DAE. Foram realizadas nove avaliações da incidência e da severidade do oídio, cujos dados foram utilizados para o cálculo das áreas abaixo das curvas de progresso da doença; três avaliações da severidade da ferrugem e da mancha da gluma; e duas avaliações da mancha amarela. Foram determinadas a massa de matéria fresca e seca da parte aérea e do sistema radicular e a produtividade da cultura. Foi observada redução da incidência e da severidade de oídio em função da adubação foliar, apenas na primeira avaliação de incidência e nas segunda e quinta avaliações de severidade da doença. O efeito complementar dos nutrientes com o fungicida para redução das doenças foi observado apenas para a mancha amarela, com redução de aproximadamente 11,16 % da severidade. Os maiores valores de produtividade foram observados para os tratamentos apenas com fungicida e, com fungicida mais nutrientes. A adubação foliar proporcionou aumento da massa fresca de raízes e massa seca de raízes. Apesar disso, não houve aumento da massa fresca da parte aérea em função da adubação foliar.

  8. Instrumento mensurador de adesao para hipertensos: contribuicao da Teoria da Resposta ao Item

    Directory of Open Access Journals (Sweden)

    Malvina Thais Pacheco Rodrigues

    2013-06-01

    Full Text Available OBJETIVO: Analisar instrumento de medição da adesão ao tratamento da hipertensão por meio da "Teoria da Resposta ao Item". MÉTODOS: Estudo analítico com 406 hipertensos com complicações associadas, atendidos na atenção básica em Fortaleza, CE, 2011, pela "Teoria da Resposta ao Item". As etapas de execução foram: teste de dimensionalidade, calibração dos itens; tratamento dos dados e construção da escala, analisadas com base no modelo de resposta gradual. Estudo da dimensionalidade do instrumento foi feito pela análise da matriz de correlação policórica e análise fatorial de informação completa. Utilizou-se o software Multilog para calibração dos itens e estimação dos escores. RESULTADOS: Os itens referentes ao tratamento medicamentoso foram os mais diretamente relacionados à adesão, enquanto aqueles referentes ao tratamento não medicamentoso precisam ser reformulados, pois possuíram menor quantidade de informação psicométrica e baixa discriminação. A independência dos itens, o reduzido número de níveis da escala e as baixas variâncias explicadas no ajuste dos modelos mostraram as principais fragilidades do instrumento analisado. A "Teoria da Resposta ao Item" mostrou-se relevante para análise, pois avaliou o respondente quanto à adesão ao tratamento da hipertensão, ao nível de dificuldade dos itens e à sua capacidade de discriminação entre indivíduos com diferentes níveis de adesão, o que gerou maior quantidade de informação. CONCLUSÕES: O instrumento analisado é limitado para medir a adesão ao tratamento da hipertensão, mediante análise pela "Teoria da Resposta ao Item", e necessita de ajustes. A adequada formulação dos itens é importante para medir precisamente o traço latente desejado.

  9. As causas imediatas do crescimento da renda, da redução da desigualdade e da queda da extrema pobreza na Bahia, no Nordeste e no Brasil entre 2003 e 2011

    OpenAIRE

    de Souza, Pedro H. G. F.

    2013-01-01

    O objetivo deste trabalho é explicar as causas imediatas do crescimento da renda domiciliar per capita, da redução da desigualdade e da queda da extrema pobreza para cinco recortes geográficos – Brasil, Nordeste, Bahia, Região Metropolitana (RM) de Salvador e Bahia não metropolitana – durante o período recente de crescimento pró-pobre (2003-2011). Com base em decomposições dinâmicas dos três aspectos, este texto procura verificar se as mudanças dos últimos anos seguem ou não um mesmo padrão g...

  10. A CPMI da Violência Contra a Mulher e a Implementação da Lei Maria Da Penha

    Directory of Open Access Journals (Sweden)

    Carmen Hein de Campos

    2015-05-01

    Full Text Available Este artigo analisa as conclusões da Comissão Parlamentar Mista de Inquérito da Violência contra a Mulher, criada pelo Congresso Nacional Brasileiro em 2012, no que tange à aplicação da Lei Maria da Penha. Após um ano e meio de trabalho, o relatório da CPMI apontou a fragilidade das políticas públicas de enfrentamento à violência contra mulheres e os obstáculos na implementação da Lei Maria da Penha, dentre os quais, destacam-se: a precariedade da rede de serviços e o reduzido número de juizados especializados em atendimento às mulheres em situação de violência doméstica e familiar; o descumprimento da decisão do Supremo Tribunal Federal que proíbe a aplicação da suspensão condicional do processo; a resistência de operadores/as do direito em entender a proposta da nova lei e romper com a lógica familista e o insuficiente orçamento para o desenvolvimento e a manutenção das políticas públicas de enfrentamento a essas situações de violência. A análise do relatório da CPMI permite concluir que os estados brasileiros investem muito pouco em políticas públicas específicas e que a implementação integral da Lei Maria da Penha depende de uma nova compreensão jurídica, da articulação entre os poderes públicos e de uma política orçamentária de gênero.

  11. Tendencia secular da amamentacao no Brasil

    Directory of Open Access Journals (Sweden)

    Sonia Isoyama Venancio

    2013-12-01

    Full Text Available Com o objetivo de documentar a tendência secular da amamentação no Brasil, foram reanalisadas as bases de dados de sete pesquisas nacionais realizadas de 1975 a 2008. Para obter dados comparáveis entre os diferentes inquéritos, foram analisadas as mesmas faixas etárias e indicadores, e utilizadas as mesmas técnicas estatísticas. A duração mediana da amamentação aumentou de 2,5 para 11,3 meses e a prevalência da amamentação exclusiva em menores de seis meses passou de 3,1% para 41,0% no período. Os resultados apontam importantes desafios no sentido de acelerar o ritmo de crescimento dessa prática no País, rumo às recomendações internacionais.

  12. Epidemiologia da insônia

    OpenAIRE

    Souza,José Carlos; Reimão,Rubens

    2004-01-01

    Os autores fizeram uma ampla revisão da literatura científica mundial sobre a epidemiologia da insônia, o mais prevalente dos distúrbios do sono. Foi feito um levantamento bibliográfico, no período de janeiro de 2002 a novembro de 2003, das publicações dos últimos 30 anos, nos bancos de dados MEDLINE e LILACS, sobre a definição e prevalência da insônia, além de suas conseqüências socioeconômicas. As palavras-chaves pesquisadas foram: distúrbio de iniciar o sono, distúrbio de manutenção do son...

  13. Pungente vislumbre: a triste infalibilidade da culpa

    Directory of Open Access Journals (Sweden)

    Thales Augusto Barretto de Castro

    2012-12-01

    Full Text Available O crime do professor de Matemática, de Clarice Lispector, aborda a necessidade inconsciente de punição advinda do sentimento de culpa, que constitui elemento inexorável da psique humana. O espelhamento do homem em seu animal o conduz à aproximação de uma possível consciência deste transtorno, fato que culmina no irremissível abandono do cão. Com base nos ensaios O estranho e O mal-estar na civilização, de Sigmund Freud, almeja-se entender a origem da dolente identificação entre estes dois personagens narrada no conto, bem como o corolário da cultura, responsável pela tristeza humana com a qual o professor irremediavelmente se coaduna.

  14. Tratamento medicamentoso da osteoartrose do joelho

    OpenAIRE

    Rezende,Márcia Uchôa de; Gobbi,Riccardo Gomes

    2009-01-01

    O tratamento clínico da osteoartrite/artrose (OA) está sempre indicado e baseia-se no autocuidado feito pelo paciente e orientado pelo médico. O uso de medicamentos é complementar às medidas de emagrecimento, ganho de força, de propriocepção, de flexibilidade e de amplitude de movimento. Entre os medicamentos disponíveis para o tratamento da OA há os que são essencialmente analgésicos e que não interferem no curso da doença; bem como os anti-inflamatórios, controversos por seus efeitos colate...

  15. Os álibis da enfermagem

    Directory of Open Access Journals (Sweden)

    Cristina Maria Loyola Miranda

    1991-03-01

    Full Text Available Trata-se de um estudo de caso realizado através de urna pesquisa de campo de método qualitativa, utilizando-se como técnica de trabalho a observação participante registrada sistemáticamente em diários. Os dados foram analizados com vistas à discussão das representações da expressão da sexualidade e dos significados das relações de poder nas categorias envolvidas buscando-se determinar a lógica e a racionalidade que apoia ou reproduz a idologia destes comportamentos dentro de instituições de ensino e de assistência à saúde. A enfermagem busca através do álibi da tarefa a sustentação para uma prática disciplinada e neutra de emoções.

  16. Retratos da metrópole parisiense

    OpenAIRE

    Saint-Julien, Thérèse; Goix, Renaud Le

    2009-01-01

    « La métropole parisienne, centralité, inégalité, proximité » propõe uma leitura e uma interpretação das tendências do território da Île de France (a região que inclui Paris e sete outros départements), ou seja, uma grande metrópole mundial de cerca de 11,3 milhões de habitantes em 2004, ligada às redes da globalização e da metropolização. O livro esboça os traços principais de suas estruturas territoriais emergentes, sublinha os desafios, o alcance dos mesmos e as contradições. Sem pretensão...

  17. Retratos da metrópole parisiense

    Directory of Open Access Journals (Sweden)

    Thérèse Saint-Julien

    2009-07-01

    Full Text Available « La métropole parisienne, centralité, inégalité, proximité » propõe uma leitura e uma interpretação das tendências do território da Île de France (a região que inclui Paris e sete outros départements, ou seja, uma grande metrópole mundial de cerca de 11,3 milhões de habitantes em 2004, ligada às redes da globalização e da metropolização. O livro esboça os traços principais de suas estruturas territoriais emergentes, sublinha os desafios, o alcance dos mesmos e as contradições. Sem pretensão...

  18. A desoneração da folha de pagamento

    OpenAIRE

    Kertzman, Ivan Mascarenhas

    2012-01-01

    218 p. Este trabalho tem como objetivo a verificação da viabilidade da desoneração da folha de pagamento, com a respectiva substituição da perda arrecadatória por outra base de financiamento. Analisa a proposta do Governo de desoneração parcial dos tributos incidentes sobre a remuneração do trabalho e a compara com outras propostas de desoneração da folha de pagamento. Visa, também, a propositura de um modelo adequado de custeio da previdência social, que traga vantagens em relaçã...

  19. COMPORTAMENTO DA ARRECADAÇÃO PRÓPRIA E DA CARGA TRIBUTÁRIA NOS MUNICÍPIOS DA ZONA DA MATA MINEIRA

    Directory of Open Access Journals (Sweden)

    Anderson de Oliveira Reis

    2016-06-01

    Full Text Available O processo de descentralização consolidado pela constituição de 1988 mudou a dinâmica do federalismo brasileiro aumentando as receitas disponíveis e também as responsabilidades do fornecimento de serviços para os municípios, que em termos financeiros são muito dependentes das transferências governamentais. Diante da importância dos municípios na Administração Pública como entes federativos, este estudo tem como objetivo identificar, a partir da classificação em grupos, a mudança no perfil da arrecadação tributária própria dos municípios da Zona da Mata Mineira tendo por base os períodos de 2005 e 2010. Trata-se de pesquisa descritiva e quantitativa em que se utilizou as metodologias de Análise de Cluster e Teste t para amostras emparelhadas. Os resultados apontam para formação de 4 grupos de acordo com o esforço fiscal (baixo, médio e alto. Em média observa-se uma evolução positiva na arrecadação própria dos municípios que foi confirmada pelo Teste t. Conclui-se que apesar da dependência dos recursos de transferências, os municípios têm realizados esforços para aumentar a arrecadação própria e consequentemente suas receitas disponíveis.

  20. DIONISO: O VERDADEIRO VALOR DA ALEGRIA

    Directory of Open Access Journals (Sweden)

    Márcio Henrique Vieira Amaro (UFC

    2015-03-01

    Full Text Available A partir da análise de três peças cômicas: Pluto, de Aristófanes, Misantropo, de Menandro, e Aululária, de Plauto, procurou-se vislumbrar um panorama da Comédia em seus mais variados estágios de desenvolvimento, desde a Grécia Clássica até o período romano. A chave de leitura utilizada foi o tema da riqueza e suas nuances. A partir da leitura das peças, buscou-se procurar uma relação entre a temática da riqueza e as relações amorosas dos personagens. Em seguida a partir dos aspectos mitológicos localizar e destacar os diversos elementos dionisíacos nos textos, procurando demonstrar a presença de Dioniso como elemento primordial na solução das intrigas em todos os estágios da produção cômica. Constatou-se assim que parece realmente existir uma relação entre a riqueza e o amor nas tramas, e a presença de Dioniso.PALAVRAS-CHAVE: COMÉDIA GRECO LATINA – DIONISISMO – TEATRO GRECO LATINO. Abstract The present study attempts to discern the Comedy scene in its various stages of development, from Classical Greece to the Roman period, by analysis of three comedic plays: Plutus by Aristophanes; Dyskolos by Menander; and Aulularia by Plautus. We tried to find a relationship between the themes of wealth and love in the plays while highlighting the various dionysian elements from the mythological aspects, aiming to demonstrate the importance of Dionysus for the solution of the intrigues at every stage of comical production.KEYWORDS: GREEK AND LATIN COMEDY – DIONYSISM – GREEK AND LATIN THEATRE

  1. ESTUDO DA ALTERAÇÃO DA COR E DEGRADAÇÃO DA CLOROFILA DURANTE ARMAZENAGEM DE ERVA-MATE TIPO CHIMARRÃO

    OpenAIRE

    Gisela Cabral Malheiros

    2007-01-01

    A Ilex paraguariensis A. St.-Hill., conhecida popularmente como erva-mate, é uma espécie nativa da região subtropical da América do Sul, a qual é matéria-prima para o produto ervamate, utilizado principalmente no preparo da bebida chimarrão. Dentre os atributos sensoriais da erva-mate tipo chimarrão, a cor constitui o primeiro critério utilizado pelo consumidor para sua aceitabilidade. A cor verde da erva-mate deve-se à presença de clorofila. Ocorrem perdas expressivas de clorofila no proc...

  2. O guardião da Constituição: o Supremo Tribunal Federal como poder autônomo no julgamento da Lei da Ficha Limpa

    OpenAIRE

    Rossi, Luís Antônio

    2016-01-01

    A presente tese, subsumindo a decisão diante do debate entre os juristas Hans Kelsen e Carl Schmitt sobre o controle de constitucionalidade pátrio, tem o escopo de analisar o comportamento do Supremo Tribunal Federal no julgamento da constitucionalidade da Lei da Ficha Limpa. A tese, ao analisar e refletir sobre quem deve ser o guardião da Constituição , pretende demonstrar que o sistema constitucional brasileiro adotou o positivismo de Hans Kelsen, mas a amplitude da Constituição de 1988, o...

  3. Turismo cultural e patrimônio sob a perspectiva da gastronomia: o caso da mandioca

    Directory of Open Access Journals (Sweden)

    Patrícia Lisboa

    2015-07-01

    Full Text Available A gastronomia é uma manifestação cultural das mais importantes, em que a cozinha é um símbolo da cultura, da memória e, também, da identidade de um povo. Por isso, na atualidade, a gastronomia tem sido reconhecida como patrimônio cultural, o que contribui diretamente no processo de valorização do turismo cultural, pois, proporciona experiências singulares ao turista e contribui na conservação das cozinhas regionais. Nesse universo de estudos em que a identidade cultural se relaciona com produtos alimentícios e práticas alimentares destaca-se a mandioca, o produto mais popular da alimentação brasileira desde o início da colonização. Esta pesquisa objetivou reconhecer, sob o viés da gastronomia, a mandioca como um elemento representativo da cozinha tradicional brasileira. Para tanto, fez-se uso de pesquisa descritiva exploratória de caráter bibliográfico. Os resultados permitem identificá-la como uma comida presente na memória cultural brasileira, constituindo-se, inclusive, como base para ritualização de festas e manifestações culturais.

  4. Os (des)caminhos da identidade

    OpenAIRE

    Oliveira,Roberto Cardoso de

    2000-01-01

    A conferência procurou apresentar uma interpretação das vicissitudes da identidade étnica e/ou nacional quando observada em situações de ambigüidade. É quando o processo identitário expressa crises reais ou virtuais, como as que têm lugar entre imigrantes latino-americanos nos Estados Unidos, entre povos de diferentes regiões da Espanha emigrados para Barcelona, entre catalães espanhóis, franceses e andorranos residentes em Andorra, e entre povos indígenas em regiões de fronteira do Brasil co...

  5. Saberes docentes da dança

    OpenAIRE

    Silvia Camara Soter da Silveira; Monique Andries Nogueira

    2016-01-01

    Este artigo trata do tema saberes docentes e busca sua relação com o ensino da dança na escola. A categoria saber docente tornou-se central no campo da formação de professores a partir dos anos 1990 no Brasil. Neste trabalho, o saber docente é abordado através de dois autores que se dedicaram ao tema: Maurice Tardif (2012) e Selma Garrido Pimenta (2012), na busca de refletir sobre as especificidades do saber docente daquele que ensina dança na escola. O saber docente se constitui, de uma par...

  6. Os labirintos da cidade: Marcial em Roma

    OpenAIRE

    Torrão, João Manuel Nunes; Andrade, António Manuel Lopes

    2008-01-01

    Martial had unparalleled knowledge of the city of Rome and he provides guidance to todays’s readers in the street maze of the city. That city had specific feaures which made the circulation of people and vehicles difficult, in spite of the efforts made by some politicians to improve the urban network. Marcial conhecia como ninguém a cidade de Roma e serve de guia aos leitores da actualidade através das ruas labirínticas da Urbe. Essa cidade apresentava características especí...

  7. Da kvinderne greb bøgerne

    DEFF Research Database (Denmark)

    Sørensen, Astrid Elkjær

    2016-01-01

    I 1800-tallet blev det anset for at være særdeles skadeligt for kvinder at bruge hovedet, og da den første kvindelige studerende startede på Københavns Universitet i 1877 ventede der en lang kamp for anerkendelse......I 1800-tallet blev det anset for at være særdeles skadeligt for kvinder at bruge hovedet, og da den første kvindelige studerende startede på Københavns Universitet i 1877 ventede der en lang kamp for anerkendelse...

  8. Skate na cidade, imagens da cidade

    OpenAIRE

    Machado, Giancarlo Marques Carraro

    2014-01-01

    Apesar da existência de dezenas de pistas de skate na cidade de São Paulo – espaços considerados “próprios” para o skate -, a maioria dos skatistas da modalidade street skate confere maior importância à prática feita nas ruas, onde, para muitos, se “anda de skate de verdade”. A atração que elas exercem é a possibilidade de encontrar diferentes tipos de picos, ou seja, equipamentos urbanos (bancos, corrimãos, escadas, canteiros) obstáculos onde se realizam as manobras. Este artigo busca analis...

  9. Imunologia da retinocoroidite toxoplásmica

    Directory of Open Access Journals (Sweden)

    Cynthia Azeredo Cordeiro

    2010-12-01

    Full Text Available A infecção pelo Toxoplasma gondii é uma importante causa de doença ocular, tanto em indivíduos imunocomprometidos como em imunocompetentes. A patogênese da destruição retinocoroidiana associada a essa infecção ainda não está totalmente esclarecida. Nesta revisão, discute-se o papel do sistema imune no controle da infecção pelo Toxoplasma, especialmente, no olho.

  10. Os direitos da personalidade do idoso

    OpenAIRE

    Paiva, Maria Lucia Fabbres de

    2005-01-01

    RESUMO O presente trabalho tem por objetivo descrever o processo de envelhecimento e a sua receptividade nos direitos da personalidade. A tendência ao envelhecimento da população é mundial e irreversível. Viver mais é uma aspiração de qualquer ser humano, mas é importante viver com dignidade e qualidade. Procuramos demonstrar que o envelhecimento ocorre de forma natural, sem dor e que à medida que vivemos também envelhecemos. A dor existe com os mitos, os preconceitos, os maus-tratos, o a...

  11. Clube Desportivo Nacional: o valor da marca

    OpenAIRE

    Jasmins, João Oliveira Pestana Gomes

    2014-01-01

    Mestrado em Gestão de Empresas. / Classificações no Sistema de Classificação JEL: C88 – Other Computer Software e M31 - Marketing Esta tese de mestrado procura estudar e analisar a gestão de marcas no âmbito desportivo, em particular no mundo do futebol, através da definição e avaliação do valor da marca numa equipa de futebol em particular. Sendo uma modalidade popular em todo o mundo, é natural que o futebol seja uma das principais indústrias em todo o mundo, movimentando quantias exo...

  12. IMPLICAÇÕES DA ANÁLISE V-A-T DA TEORIA DAS RESTRIÇÕES NA GESTÃO DA CADEIA DE SUPRIMENTOS

    Directory of Open Access Journals (Sweden)

    Diego Augusto de Jesus Pacheco

    2016-03-01

    Full Text Available O objetivo dessa pesquisa é identificar o impacto da análise V-A-T da Teoria das Restrições na gestão estratégica de materiais à luz da Matriz de Posicionamento Estratégico dos Materiais (MPEM. A partir de dois estudos de caso, buscou-se verificar: i em qual classificação cada empresa se enquadrava dentro da lógica V-A-T, e ii se a gestão estratégica de materiais a partir da abordagem da MPEM pode ser considerada semelhante ou não nos casos investigados. Os resultados da pesquisa apontaram que a classificação V-A-T no caso da empresa S é do tipo A e no caso da empresa K é do tipo V. Já a análise da gestão estratégica de materiais a partir da MPEM, evidenciou que no caso S pertence ao quadrante não crítico e no caso K pertence ao quadrante estratégico. Identificou-se que a classificação V-A-T tende a impactar na gestão de materiais e no controle de estoques.

  13. Os Desafios da Epidemia do Ebola

    Directory of Open Access Journals (Sweden)

    Manoel Dias da Fonsêca Neto

    2014-09-01

    Full Text Available Desde que se criaram as condições para a existência de aglomerados populacionais, os grandes flagelos sanitários da humanidade sempre estiveram presentes. As condições de vida, os desastres naturais ou provocados, podem agravar consideravelmente o risco de epidemias. Ao largo da história da humanidade, se viu populações de todo o mundo afetadas esporadicamente por surtos devastadores de doenças infecciosas, com destaque para cólera, peste e varíola. Hipocrates (460-377 AC e Galeno (129-216 DC já descreveram em suas épocas um doença que provavelmente era a cólera(1.A relação entre doença e civilização tem raízes mais antigas que a historia escrita. Os males sofridos durante os primeiros estágios da evolução humana foram identificados através de estudos arqueológicos(2.A atualidade é marcada por erupções recorrentes de doenças recém- descobertas, como o hantavirus, a AIDS, o ebola e gripes provocadas por vírus de diversas estruturas, entre outras epidemias de doenças que migraram para novas áreas, moléstias que adquiriram importância através de tecnologias humanas, como as síndromes de choques tóxicos, a doença dos legionários e zoonoses, em decorrência da destruição dos habitats naturais dos animais pelo homem. Algumas dessas doenças são potencialmente epidêmicas, e poderão gerar epidemias em grande escala, até mundial, a exemplo da epidemia global do vírus da imunodeficiência humana, a AIDS, considerada a primeira doença infecciosa epidêmica moderna(2,3.O grande aumento da movimentação de pessoas e mercadorias pelo mundo é força motriz por trás da globalização das doenças, tornando o mundo mais rapidamente vulnerável às mesmas e à sua propagação, tanto de antigas como de novas enfermidades. As pessoas e as mercadorias passaram a viajar e circular mais, muito mais rápido e a mais lugares e com elas, transportam-se micro-organismos a locais onde antes inexistiam. A nova epidemia

  14. Breves considerações acerca da poesia, da filosofia e da crítica literária

    Directory of Open Access Journals (Sweden)

    Affonso Henrique Vieira da Costa

    2016-07-01

    Full Text Available O trabalho se constitui diante de uma indagação: É possível falar sobre a arte? Ele tem por objetivo tecer considerações em torno da relação existente entre poesia, filosofia e crítica literária.

  15. EFEITO DA DESIDRATAÇÃO FOAM MAT NA RETENÇÃO DA VITAMINA C DA POLPA DE CAJAMANGA

    Directory of Open Access Journals (Sweden)

    Caroline Alves BREDA

    2013-04-01

    Full Text Available O objetivo do trabalho foi avaliar o efeito da desidratação foam mat na retenção da vitamina C em polpa de cajamanga. A polpa de cajamanga foi elaborada a partir de quatro formulações utilizando três agentes espumantes combinados em diferentes concentrações: 1 pectina cítrica, 2 produto à base de monoglicerídeos destilados, monoestearato de sorbitana e polissorbato 60 (Emustab e 3 produto à base de sacarose, carboximetilcelulose e goma guar (Super Liga Neutra. A composição proximal e o conteúdo de vitamina C foram determinados na polpa fresca e nas polpas desidratadas obtidas a partir das formulações. Os resultados mostraram que a adição de agentes espumantes favoreceu ao incremento de açúcares e fibras na polpa desidratada. Os agentes formadores de espuma influenciaram na retenção da vitamina C. A polpa desidratada contendo 1,5% de Emustab e 1,0% de pectina obteve maior retenção da vitamina (28,55%.

  16. A EVOLUÇÃO DA TECNOLOGIA DA INFORMAÇÂO (TI DENTRO DA ADMINISTRAÇÃO

    Directory of Open Access Journals (Sweden)

    Joe Yukinori Katsurayama

    2017-03-01

    Full Text Available Buscamos relacionar a tecnologia e os paradigmas contemporâneos que hoje são de fundamental importância na rede empresarial e como neste contexto cotidiano essa questão é primordial para o desenvolvimento. O fenômeno da globalização mostra o quanto está modernizado a crescente expansão das mídias nas empresas atuais. Diante disto, o objetivo do estudo visa realizar um levantamento bibliográfico sobre a eficácia da Tecnologia da Informação na Administração. Para isto foram levantados estudos sobre a evolução desta tecnologia na base de dados Scielo, Google Acadêmico. Observou- se com o presente estudo que aos poucos as empresas foram se sensibilizando para a importância da informação na gestão de negócios. O conceito de TI engloba software, telecomunicações, automação, recursos multimídia, recursos de organização de dados, entre outros.

  17. Perspective of using the sterile insect technique for Tobacco Budworms Heliothis virescens (Lepidoptera: Noctuidae) and Cotton Bollworm Helicoverpa armigera (Lepidoptera: Noctuidae) in cotton crop as an alternative method of control; Perspectiva de utilizacao da Tecnica do Inseto Esteril para lagarta da maca Heliothis virescens (Lepidoptera: Noctuidae) e lagarta do velho mundo Helicoverpa armigera (Lepidoptera: Noctuidae) na cultura do algodoeiro como um metodo alternativo de controle

    Energy Technology Data Exchange (ETDEWEB)

    Haddad, Gianni Queiroz

    2017-07-01

    Since the 1950s, scientists have used ionizing radiation to sterilize insects, which are released in nature to mate, but without any progeny. Known as the sterile insect technique (TIE), this method of insect control has traditionally used ionizing radiation to sterilize insects, a technique that does not generate residues, and can act in synergy with the other techniques within integrated pest management. For several years, Brazil has been fighting against the increase of pests, introducing new tactics and techniques within the IPM programs, to overcome the resistance of chemical products, such as: reducing the residues of agrochemicals; For some important crops of our country, we have a wide spectrum of pests occurring from the beginning to the end of the harvest, one of them is the cotton crop and among the key pests of this crop, we have some extremely important caterpillars, among them Heliothis virescens and Helicoverpa armigera These species are morphologically similar, the second being identified a few years ago in Brazil. There are still no studies in Brazil using TIE as an additional tool for Lepidoptera, therefore the purpose of this study was to evaluate the effect of doses of gamma radiation in the different phases of the evolutionary cycle of Heliothis virescens and Helicoverpa armigera, as well as to evaluate the sterility in generation P And the ability of insects to irradiate with non-irradiated insects. The pupal phase presented the best result because 75 Gy achieved sterility in Heliothis virecens and 100 Gy sterilized Helicoverpa armigera, therefore it contemplated the phase and dose chosen to evaluate the competition between the irradiated insects and the normal insects of both species. Both Heliothis virecens and Helicoverpa armigera presented a satisfactory result, as the irradiated insects managed to significantly reduce the viability of the eggs in a ratio of 9: 1: 1. (author)

  18. INTEGRAÇÃO AFRICANA: DA ORGANIZAÇÃO DA UNIDADE AFRICANA À UNIÃO AFRICANA

    OpenAIRE

    Diallo, Alfa Oumar

    2015-01-01

    Desde Kwamé N´Krumah a unidade da África era um grande desejo. A Organização da Unidade Africana (OUA) servia aos olhares de alguns na pobreza moral e material do continente. Destaca-se, que dentro da OUA, alguns fundadores militavam em favor da instituição dos Estados Unidos da África enquanto que outros pregavam, ao contrário, pela fragmentação dos Estados-Nações sob uma forma organizacional. Os Estados Unidos da África certamente seriam limitados à exploração contínua deste continente, mas...

  19. Evolução morfológica recente da zona lagunar da Ria Formosa

    OpenAIRE

    Portela, L. I.

    2012-01-01

    A análise da evolução de um conjunto significativo de canais e barras da Ria Formosa, efectuada com base em levantamentos hidrográficos e em fotografia aérea, indica que, entre 1980 e 2011, nas áreas abrangidas, se verificou uma perda de sedimento da ordem de 12 x 106 m3, em resultado de dragagens realizadas quer nos canais de navegação, quer em outros canais do sistema lagunar. Os canais interiores aparentam, na ausência de intervenções, uma relativa estabilidade. Pelo contrário,...

  20. In vitro activities of DA-7157 and DA-7218 against Mycobacterium tuberculosis and Nocardia brasiliensis.

    Science.gov (United States)

    Vera-Cabrera, Lucio; Gonzalez, Eva; Rendon, Adrian; Ocampo-Candiani, Jorge; Welsh, Oliverio; Velazquez-Moreno, Victor M; Choi, Sung Hak; Molina-Torres, Carmen

    2006-09-01

    The in vitro activities of DA-7157, a novel oxazolidinone, against clinical isolates of Nocardia brasiliensis and Mycobacterium tuberculosis were determined. Equal MIC(50)s and MIC(90)s (0.25 and 0.5 microg/ml, respectively) were found for susceptible and multidrug-resistant isolates of M. tuberculosis. The N. brasiliensis isolates showed an MIC(90) of 1 microg/ml and an MIC(50) of 1 microg/ml. The DA-7157 prodrug, DA-7218, exhibited similar MICs for M. tuberculosis but fivefold-higher MICs for N. brasiliensis.