44 resultados para Avaliação do ciclo de vida


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A avaliação do ciclo de vida (ACV) é uma metodologia de avaliação de impacto ambiental de produtos e sistemas de produção considerando todo o ciclo de vida, desde a aquisição de matérias-primas até a disposição final. Este trabalho consistiu na investigação do progresso dos estudos sobre ACV no Brasil, por meio de uma pesquisa bibliográfica em eventos e periódicos oficiais ou reconhecidos pela Associação Brasileira de Engenharia de Produção e na base de dados SciELO Brasil. Foram identificados 80 artigos, a maioria de instituições das regiões Sul e Sudeste. A Universidade de São Paulo (USP) e Universidade Federal de Santa Catarina (UFSC) apresentaram o maior número de publicações dentre as 50 instituições identificadas. Verificou-se que 17 artigos aplicaram efetivamente a metodologia ACV em um estudo de caso, sendo que 11 utilizaram a metodologia para avaliar processo produtivo e 6 para comparar materiais ou processos

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Tourism in the Northeast of Brazil was introduced as an alternative economic development for the Region by federal promoting policies that focused primarily in structuring the local geographic area. With the completion of these structuring actions, mass tourism expanding the area, as well as spread actions based on cooperation and formalization of governance institutions. This study aimed to examine the relationship between the life cycle of the tourism product 'Coastal Cities of Natal and the cooperation strategies in a historical perspective. Thus was submitted to the life cycle of the tourism product 'Coastal Cities of Natal ; the major projects of tourism development were mapped, the existing cooperation strategies were characterized, and investigated the influence of the cooperation actions for the current stage of product. The specific theoretical support to tourism was built on the perspective of the Theory of Population Ecology, System of Tourism and Touristic Product Life Cycle. Regarding to cooperation the theoretical foundation addressed issues of strategy, New Forms and Collective Efficiency. The survey consisted of a causal descriptive study, using a case study. We used the qualitative and quantitative methodological approaches, and data collected by consulting of secondary data and semistructured interviews with twelve staff working in tourism in Natal. Results showed that the life cycle graph of product 'Coastal Cities of Natal is moving from one stage of growth to a stage of maturity, with a primary upward trend and with crises that are up over the graph. They have been mapped six of tourism development projects of relevance to the product: The Politics of Mega Projects, PRODETUR/NE, Municipalization National Program of Tourism, Regionalization Program, Urbanization Project Beach do Meio and Actions for the Promotion of Destiny. They have been identified sixty-four participating players in process of tourism development, which twenty were considered relevant to the respondents. The main strategies identified for cooperation were the consortium, collective strategy and clusters. Results indicated that co-operation strategies were adopted so that the benefits were obtained at the collective level, dedicated to the strengthening of Natal Destiny and its products. The main reasons were the need of cooperative marketing, international market entry and actions inducing the state. Finally, it was concluded that strategies for cooperation related to product life cycle 'Coastal Cities of Natal' as that work in the consolidation of projects for development of tourism, when the efficiency of collective action is achieved

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Objetivo: Analisar as características sociodemográficas, ocupacionais e de saúde clínica/comportamental, e o impacto desses fatores na avaliação da qualidade de vida de professores da rede municipal de Natal/RN. Métodos: Estudo descritivo-analítico com corte transversal e amostra de 242 docentes. Foram utilizados os questionários Whoqol-breve e nórdico, além de questões referentes ao trabalho do Job Content Questionnaire (JCQ). Os dados foram submetidos à análise estatística com nível de significância p<0,05, sendo utilizada a regressão logística binária, para análise de fatores hierarquicamente agrupados. Resultados: O domínio físico apresentou maior comprometimento entre os professores com trabalho de alta exigência (p=0,043), com mais de 02 diagnósticos de doenças (p < 0,001), atividade física inadequada (p= 0,001) e com sintomas osteomusculares (p=0.025); o domínio psicológico entre os docentes com trabalho de alta exigência (p=0,043), com carga horária maior que 28 horas semanais (p=0,034), com mais de 02 doenças (p=0,012) e que praticavam atividade física inadequadamente (p< 0,001); o de relações sociais com tempo de trabalho inferior/igual a 18 anos (p=0,036) e que residiam em bairro diferente do que trabalhavam (p=0,027); e, por último, o domínio meio ambiente apresentou maior comprometimento entre os docentes com carga horária superior a 28 horas semanais (p=0,025), que exerciam a atividade com tempo inferior/igual a 18 anos (p=0,013) e com sintomas osteomusculares (p= 0,002). Conclusões: Os professores apresentaram uma avaliação comprometida da qualidade de vida e do seu estado de saúde, tendo as atividades laborais desenvolvidas por esse grupo de trabalhadores um impacto importante sobre os resultados demonstrados. Tais achados podem comprometer a efetivação da proposta das escolas promotora de saúde

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The present study had as objective translates, to do equivalence and validation of the Utian Quality of Life (UQOL) for the Brazilian population through methods internationally accepted, in which the original questionnaire was translated for the Portuguese by three teachers and the consensual version was translated back for English by two American teachers (back translation). A multidisciplinary committee evaluated all versions and the final version in Portuguese was applied to climacteric women for the process of adaptation. Validation of the instrument was performed by measuring the reliability and validity properties. Construct validity was examined through the comparison between UQOL and the general measuring scale of quality of life Short Form-36 (SF-36). The final version of translation process was easily recognized by the target population, that didn't tell understanding problems. The results obtained for the reliability intra and interobserver showed significant agreement in all of the subjects. The construct validity was obtained through correlations statistically significant among the domains occupational, health and emotional of UQOL with the SF-36 domains. For the exploratory factorial analysis, it was verified that three factors explain 60% of the total variance of the data, the present study allowed concluding that UQOL was appropriately translated and adapted for applicability in Brazil, presenting high reliability and validity. In that way, the executed project provided the involvement of different areas as gynecology, psychology and physiotherapy (interdisciplinary). Thus, this instrument can be included and used in Brazilian studies to assessment the quality of life during the climacteric years

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We developed an assay methodology that considered the temperature variation and the scanning electron microscopy as a method to quantify and characterize respectively the consumption evolution in three 46 LA machines, with internal combustion and two-stroke engines, 7.64 cm3 cylinder capacity, 23.0 millimeters diameter and 18.4 millimeters course, RPM service from 2.000 to 16.000 rpm, 1.2 HP power, and 272 grams weight. The investigated engines components were: (1) head of the engine (Al-Si alloy), (2) piston (Al-Si alloy) and (3) piston pin (AISI 52100 steel). The assays were carried out on a desktop; engines 1 and 2 were assayed with no load, whereas in two assays of engine 3 we added a fan with wind speed that varied from 8.10 m/s to 11.92 m/s, in order to identify and compare the engine dynamic behavior as related to the engines assayed with no load. The temperatures of the engine s surface and surroundings were measured by two type K thermopairs connected to the assay device and registered in a microcomputer with data recording and parameters control and monitoring software, throughout the assays. The consumed surface of the components was analyzed by scanning electron microscopy (SEM) and microanalysis-EDS. The study was complemented with shape deformation and mass measurement assays. The temperature variation was associated with the oxides morphology and the consumption mechanisms were discussed based on the relation between the thermal mechanical effects and the responses of the materials characterization

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Tourism in the Northeast of Brazil was introduced as an alternative economic development for the Region by federal promoting policies that focused primarily in structuring the local geographic area. With the completion of these structuring actions, mass tourism expanding the area, as well as spread actions based on cooperation and formalization of governance institutions. This study aimed to examine the relationship between the life cycle of the tourism product 'Coastal Cities of Natal and the cooperation strategies in a historical perspective. Thus was submitted to the life cycle of the tourism product 'Coastal Cities of Natal ; the major projects of tourism development were mapped, the existing cooperation strategies were characterized, and investigated the influence of the cooperation actions for the current stage of product. The specific theoretical support to tourism was built on the perspective of the Theory of Population Ecology, System of Tourism and Touristic Product Life Cycle. Regarding to cooperation the theoretical foundation addressed issues of strategy, New Forms and Collective Efficiency. The survey consisted of a causal descriptive study, using a case study. We used the qualitative and quantitative methodological approaches, and data collected by consulting of secondary data and semistructured interviews with twelve staff working in tourism in Natal. Results showed that the life cycle graph of product 'Coastal Cities of Natal is moving from one stage of growth to a stage of maturity, with a primary upward trend and with crises that are up over the graph. They have been mapped six of tourism development projects of relevance to the product: The Politics of Mega Projects, PRODETUR/NE, Municipalization National Program of Tourism, Regionalization Program, Urbanization Project Beach do Meio and Actions for the Promotion of Destiny. They have been identified sixty-four participating players in process of tourism development, which twenty were considered relevant to the respondents. The main strategies identified for cooperation were the consortium, collective strategy and clusters. Results indicated that co-operation strategies were adopted so that the benefits were obtained at the collective level, dedicated to the strengthening of Natal Destiny and its products. The main reasons were the need of cooperative marketing, international market entry and actions inducing the state. Finally, it was concluded that strategies for cooperation related to product life cycle 'Coastal Cities of Natal' as that work in the consolidation of projects for development of tourism, when the efficiency of collective action is achieved

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Leishmaniasis are endemic diseases wild spread in the New and Old World, caused by the flagelated protozoan Leishmania. In the New World, the distribution of different forms of leishmaniasis is mostly in tropical regions. In the State of Rio Grande do Norte, Northeast Brazil, 85% of the captured sand flies fauna is Lutzomyia longipalpis. The distribution of the sand fly vector in the state overlaps with the disease distribution, where the presence of sand flies is associated with presence of animals shelters. The aim of this study was to analyse the blood meal preference of sand flies vector from the genus Lutzomyia spp. in laboratory conditions, to verify the vector life cicle at different temperatures sets and to identify the main blood meal source in endemic areas for visceral leishmaniasis (VL) at peri-urban regions of Natal. Sand flies samples were collected from the municipalities of São Gonçalo do Amarante and Nísia Floresta where female sand flies were grouped for the colony maintenance in the laboratory and for the analysis of the preferred source of sand fly blood meal in natural environment. The prevalence of blood meal preference and oviposition for the females sand flies was 97% for Cavia porcellus with oviposition of 19 eggs/female; 97% for Eqqus caballus with 19 eggs/female; 98% for human blood with 14 eggs/female; 71.3% for Didelphis albiventris with 8.4 eggs/female; 73% for Gallus gallus with 14 eggs/female; 86% for Canis familiaris with 10.3 eggs/female; 81.4% for Galea spixii with 26 eggs/female; 36% for Callithrix jachus with 15 eggs/female; 42.8% for Monodelphis domestica with 0% of oviposition. Female sand flies did not take a blood meal from Felis catus. Sand flies life cycle ranged from 32-40 days, with 21-50 oviposition rates approximately. This study also showed that at 32°C the life cycle had 31 days, at 28° C it had 50 days and at 22°C it increased to 79 days. Adjusting the temperature to 35°C the eggs did not hatch, thus blocking the life cycle. A total of 1540 sand flies were captured, among them, 1.310 were male and 230 were female. Whereas 86% of the sand flies captured were Lu. longipalpis as compared to 10.5% for Lu. evandroi and, 3.2% for L. lenti and 0.3% for Lu whitmani. The ratio between female and male sandfly was approximately 6 males to 1 female. In Nísia Floresta, 50.7% of the collected females took their blood meal from armadillo, 12.8% from human. Among the female sand flies captured in São Gonçalo do Amarante, 80 of them were tested for the Leishmania KDNA infectivity where 5% of them were infected with Leishmania chagasi. Female Lutzomyia spp. showed to have an opportunistic blood meal characteristic. The behavioral parameters seem to have a higher influence in the oviposition when compared to the level of total proteins detected in the host s bloodstream. A higher Lu. longipalpis life cycle viability was observed at 28°C. The increase of temperature dropped the life cycle time, which means that the life cycle is modified by temperature range, source of blood meal and humidity. Lu longipalpis was the most specie found in the inner and peridomiciliar environment. In Nísia Floresta, armadillos were the main source of blood meal for Lutzomyia spp. At São Gonçalo do Amarante, humans were the main source of blood meal due to CDC nets placed inside their houses

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Cementing operations may occur at various stages of the life cycle of an oil well since its construction until its definitive abandonment. There are some situations in which the interest zones are depleted or have low fracture pressure. In such cases, the adoption of lowdensity cement slurries is an efficient solution. To this end, there are basically three ways to reduce the density of cement slurries: using microspheres, water extending additives or foamed cement. The objective of this study is to formulate, to study and to characterize lowdensity foamed cement, using an air entrainment surfactant with vermiculite or diatomite as water extenders and stabilizers. The methodology consists on preparation and evaluation of the slurries under the American Petroleum Institute (API) and the Brazilian Association of Technical Standards (ABNT) guidelines. Based on calculated densities between 13 and 15 ppg (1.559 and 1.799 g/cm3), the slurries were prepared with fixed surfactant concentration, varying the concentrations of vermiculite and diatomite and were compared with the base slurries. The results of plastic viscosity, yield point and gel strength and the compressive strength for 24 h showed that the slurries presented suitable rheology and mechanical strength for cementing operations in oil wells, and had their densities reduced between 8.40 and 11.89 ppg (1.007 and 1.426 g/cm3). The conclusion is that is possible, under atmospheric conditions, to obtain light weighted foamed cement slurries with satisfactory rheological and mechanical properties by means of air entrainment and mineral additions with extenders and stabilizers effects. The slurries have great potential for cementing operations; applicability in deep wells, in low fracture gradient formations and in depleted zones and bring cost savings by reducing the cementing consumption

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Introdução/objetivos: A avaliação do estado de saúde de idosos institucionalizados é considerada prática essencial à promoção e recuperação da sua saúde, a qual deve incluir a investigação de aspectos multidimensionais e multidisciplinares relacionados ao envelhecimento saudável. O estudo objetivou avaliar as condições de saúde dos idosos residentes em instituições de longa permanência (ILPI) do município de Natal RN. Métodos: Trata-se de um estudo descritivo, longitudinal, envolvendo seis ILPI filantrópicas, com uma população de 243 idosos. A coleta de dados se deu por meio de entrevistas com os idosos nas instituições mediante a aplicação de um questionário com informações sócio demográficas, saúde e institucionalização, além de várias facetas multidisciplinares que envolvem a escala de avaliação cognitiva (Mini Exame do Estado Mental); o índex de KATZ, para avaliação das atividades da vida diária e uma análise do estado nutricional com questões antropométricas (peso, estatura, circunferência abdominal) e Índice de Massa Corpórea. Participaram do estudo todos os idosos com idade igual ou superior a 60 anos, que aceitaram responder a entrevista e assinaram o Termo de Consentimento Livre e Esclarecido e/ou a impressão datiloscópica. O projeto foi aprovado pelo Comitê de Ética em Pesquisa da Universidade Federal do Rio Grande do Norte, sob parecer n° 164/2011. Resultados: Os participantes do estudo incluem 243 idosos, sendo a maioria mulheres (172 = 70,7%), com média de idade de 79 ± 9,44 anos. 124 idosos são solteiros (51,0%) e 66 viúvos (27,0%). A prática de atividades físicas não é rotina nas instituições, onde a maioria dos idosos (82,7%; n = 201) não realiza nenhum tipo de atividade. 78% dos idosos (n = 192) chegou a instituição sendo levados por familiares, enquanto que apenas 18% (n = 44 idosos) por vontade própria e 4% (n = 7 idosos) não souberam responder. Quanto aos aspectos cognitivos, identificou-se que 64,2% dos idosos (n = 156) apresentaram alterações significativas dentro da pontuação dos escores com restrições em responder aos demais questionamentos durante a entrevista por apresentarem limitações cognitivas e/ou dificuldades senso perceptivas.Conclusão: O presente estudo evidenciou alterações cognitivas na maioria dos idosos institucionalizados impossibilitando-os a continuidade da realização da avaliação global da saúde. A identificação correta da perda cognitiva em idosos é de suma importância para a equipe de saúde a fim de promover a detecção precoce de alterações cognitivas e a adoção de tratamento adequado, no sentido de contribuir para uma melhor qualidade de vida desta população

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Objective: Identify the factors associated to the painful symptomatology and the quality of life and in dentists in the city of Teresina-PI. Brazil. Methods It was accomplished a cross-sectional study with 175 dentists registered with the Regional Council of Dentistry-PI from March to May, 2007. For characterization of the dentists we used a multidimensional questionnaire containing sociodemographic (age, sex) and professional information (time of service, journey to work). The evaluation of the presence of pain was performed by the Protocol of Painful Symptoms of McGILL. The WHOQOL-Bref was used to assess quality of life through physical, psychological, social and environmental domains. Results / Conclusions The painful symptomatology was reported in 69,7% of individuals, being observed in 77.3% of women and 60.3% of men. Body regions where pain was prevalent was the regions of neck (69,2%) lower back (69,7%). The dentists had high levels of self-perception of quality of life satisfaction and health. 96,0% of the individuals reported quality of life as very good, and only 16.6% reported dissatisfied with health. The Physical and Environmental domains showed values higher than the psychological and social domains. The painful symptomatology of studied dentists is associated with female sex (RP=1.28; IC95% 1.04-1.58; p<0.01). A multivariate analysis by logistic regression was performed and only the painful symptoms (OR = 2.51, IC95% 1,21-5,21) remained associated with the quality of life of these professionals when adjusted for other variables studied

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This study was developed with the aim of analyzing the effectiveness of renal transplantation on quality of life of kidney recipients in the Rio Grande do Norte State. This is a descriptive study with longitudinal design, panel type with quantitative approach to data analysis. The Quality of Life (QoL) of chronic disease kidney patients before and after kidney transplantation was assessed by the WHOQOL-bref, The population consisted of patients in pre and post-renal transplantation, the sample had 63 patients older than 18 years. The study was conducted after approval by the Research Ethics Committee of the Onofre Lopes University Hospital, Federal University of Rio Grande do Norte, No. CAAE 0008.0.294.000-10. Data collection was performed at a referral center for renal transplantation in Rio Grande do Norte, from May 2010 to May 2013. Data were analyzed using descriptive statistics and presented in tables and graphs. For statistical analyzes, Microsoft Excel XP and SPSS 15.0 software were used. The tests used were simple variance (ANOVA), t-test, Mann-Whitney and Wilcoxon test to compare means, and Spearman correlations. P values <0.05 were considered significant. The demographic data showed a predominance of people between 18 and 45 years (68.2%) with a mean age of 39.9 years (SD 12.2), male (63.5%), married (58.7%), with children (51.0%). Regarding the education level was observed that 49.2% of participants had completed primary school, and most did not engage in any work activity (90.4%) during the study period. Hemodialysis was the predominant renal replacement therapy (96.8%) and the average waiting time for execution of transplantation was 1.9 years (SD 1.9). Comparison of QoL before and after transplantation showed significant differences in all areas analyzed, demonstrating that kidney transplantation had a positive impact on QoL in chronic renal patients undergoing kidney transplantation. Sociodemographic factors did not influence the quality of life in this group of patients, indicating that transplantation was the main factor to explain the improvement in quality of life. Thus, the alternative hypothesis of the study was accept, that there is a significant difference in quality of life before and after kidney transplant. It is expected that the results of this study may contribute to the development of strategies to encourage organ donation and kidney transplantation process

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Conselho Nacional de Desenvolvimento Científico e Tecnológico

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Post-menopause is a period of women s life cycle that is characterized by estrogen depletion and therefore increasing cardiovascular diseases, neurodegenerative disorders, urogenital atrophy, osteoporosis, hot flushes and sexual discomfort incidences. Estrogen is a hormone with comfirmed antioxidant action and its depletion is related to oxidative stress instalation and damaging various important biomolecules. Regular physical activity has been identified as a factor involved in reducing women s post-menopausal complications in addition to improving antioxidant defense by reducing the oxidative damage and consequently improving life s quality in this part of the population. This study aims to evaluate the influence of hypoestrogenism in antioxidant adaptation due to regular exercise, by determining reduced glutathione (GSH) and Thiobarbituric Acid Reactive Substances (SRAT) concentrations and antioxidant enzymes glutathione peroxidase (GPx), Superoxide Dismutase (SOD) and Catalase (CAT) activities in blood, brain and liver of rats. To achieve this goal we used 50 Wistar rats, weighing 180-250g which were divided into two groups, control - GC (25) and ooforectomized - GO (25). Each group was subdivided into five subgroups: Not-trained - S (5), Not-trained Acute Exercise - SEA (5), regular exercise 30 days - E30 (5), regular exercise 60 days - E60 (5) and regular exercise 90 days - E90 (5). Each of the three subgroups exercised regularly was subjected to acute exercise on the eve and the day of sacrifice to collect biological samples of blood, liver and brain and subsequent determination of SRAT concentration, GSH content and antioxidant enzymes GPx, SOD and CAT activities. The results indicated that the sedentary animals acutely exercised presented oxidative stress and regular physical activity led to antioxidant adaptation. In ooforectomized group the antioxidant adaptation seen in control animals showed to be impaired. Unlike the results from blood and liver, in brain there was a shield against oxidative damage originated by the exercise and that hypoestrogenism led to a loss of this natural antioxidant potential. Therefore, hypoestrogenism interferes negatively in antioxidant adaptation due to regular exercise

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As a contemporary tendency, it is been evidenced that the environmental changes theme, already admitted as a concernment to international economical and political reality, is also gaining repercussion on industrial and business sector. Firms are implementing actions on trial to minimize their own greenhouse gases (GHG) emissions impacts. However, the great majority of those actions of Corporative Social-Environmental Responsibility (CSR) are referred only to direct emissions of the main production systems. Direct emissions are those derived of an isolate process, without considering the upstream and downstream processes emissions, which respond for the majority of emissions originated because of respective firm‟s production system existence. Because the greenhouse effect occurs globally and the GHG emissions contribute to the environmental changes independently of their origin, it must be taken into account the whole productive life cycle of products and systems, since the energy invested on resources extraction and necessary materials to the final disposal. To do so, it must be investigated all relevant steps of a product/production system life cycle, tracking all activities which emit greenhouse gases, directly or indirectly. This amount of emissions consists in the firm‟s Carbon Footprint. This research purpose is to defend the Carbon Footprint relevance and its adoption viability to be used as an Environmental Indicator on measurement/assessment of CSR. It has been realized a study case on Petrobras‟s seat unity at Natal-Brazil, assessing part of its Carbon Footprint. It has been used the software GEMIS 4.6 to do the emissions quantifying. The items measured were the direct emissions of the own unity vehicles and indirect emissions of offset paper (A4), energy and disposable plastic cups consumed. To 2009, these emissions were 3.811,94 tCO2eq. We may conclude that Carbon Footprint quantification is indispensable to the knowledge of real emissions caused by a productive process existence, must serving as basis to CSR decisions about the environmental changes reversion challenge

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Introduction: Radical prostatectomy surgery is the best treatment currently adopted by detecting prostate cancer. The urinary incontinence is one more common and difficult to treat postoperative complications, which causes a negative impact on quality of life of the individual prostatectomy . The surface electrical nerve stimulation involves the transmission of electrical impulses from an external stimulator for peripheral nerve through surface electrodes attached to skin. It is an easy and efficient technique, widely used for pain relief, rehabilitation and muscle strengthening. Objective: To analyze the effect of T10-L2 percutaneous electrical stimulation, in individuals with urinary incontinence who underwent radical prostatectomy by the laparoscopic technique. Methods: Six patients had previously undergone radical prostatectomy were submitted to 20 sections of surface electrical stimulation with frequency of 4 Hz, pulse width of 1ms during 20 minutes. All subjects fillid a quality of life - International Consultation on Incontinence Questionnaire- Short FormI - ICIQ-SF questionnaire evaluating. Results: Results showed reduction in the use of the number of pads, number of leaks before and after treatment, and reduced voiding frequency and consequent improvement in quality of life. No side effects were reported. Conclusion: Percutanous electrical stimulation in T10-L2 may be an effective technique to treat urinary incontinence (UI) after radical prostatectomy video laparoscopy