Relatório de Gestão: 2006.

bitstream/CNPUV/9651/1/doc067.pd

A new doubly discrete analogue of smoke ring flow and the real time simulation of fluid flow

Modelling incompressible ideal fluids as a finite collection of vortex filaments is important in physics (super-fluidity, models for the onset of turbulence) as well as for numerical algorithms used in computer graphics for the real time simulation of smoke. Here we introduce a time-discrete evolution equation for arbitrary closed polygons in 3-space that is a discretisation of the localised induction approximation of filament motion. This discretisation shares with its continuum limit the property that it is a completely integrable system. We apply this polygon evolution to a significant improvement of the numerical algorithms used in Computer Graphics.Comment: 15 pages, 3 figure

Convergence analysis between federal and state agendas for the promotion of science, technology and innovation (STI): a study focused on ICT sector priorities in the State of Santa Catarina – Brazil

This article aims to analyze the convergence between the evolution of federal investments in science, technology and innovation (STI) in Brazil as of 2002 and the agenda of the industry of the state of Santa Catarina for the ICT sector until 2022. Data were taken from the National Fund for Scientific and Technological Development (FNDCT) and the Industrial Development Plan of Santa Catarina (PDIC), specifically in the ICT sector. Combined practices of information technology and knowledge engineering were employed for the analysis. The study showed a mismatch between the federal and state agendas. Only a portion of the demands of the state were contemplated in the projects financed during the period of this study. There is therefore, a need to mature the institutional structure through mechanisms that allow different spheres to connect. The results show that approximately half of the resources are allocated directly to companies and half to higher education institutions, organizations of ICT and foundations. On one hand, these results suggest a balance between research that emphasizes the scientific and technological relevance and alignment with the principles of the systemic model of innovation. On the other hand, it reiterates the relevance of studies dedicated to investigating the process of university-company interactions in Brazil. Implications of findings on national STI policies are included in this study.This article aims to analyze the convergence between the evolution of federal investments in science, technology and innovation (STI) in Brazil as of 2002 and the agenda of the industry of the state of Santa Catarina for the ICT sector until 2022. Data were taken from the National Fund for Scientific and Technological Development (FNDCT) and the Industrial Development Plan of Santa Catarina (PDIC), specifically in the ICT sector. Combined practices of information technology and knowledge engineering were employed for the analysis. The study showed a mismatch between the federal and state agendas. Only a portion of the demands of the state were contemplated in the projects financed during the period of this study. There is therefore, a need to mature the institutional structure through mechanisms that allow different spheres to connect. The results show that approximately half of the resources are allocated directly to companies and half to higher education institutions, organizations of ICT and foundations. On one hand, these results suggest a balance between research that emphasizes the scientific and technological relevance and alignment with the principles of the systemic model of innovation. On the other hand, it reiterates the relevance of studies dedicated to investigating the process of university-company interactions in Brazil. Implications of findings on national STI policies are included in this study

Toxic and Metabolic Myelopathies

Myelopathy describes any neurologic deficit related to the spinal cord. It is most commonly caused by its compression by neoplasms, degenerative disc disease, trauma, or infection. Less common causes of myelopathy include spinal cord tumors, infection, inflammatory, neurodegenerative, vascular, toxic, and metabolic disorders. Conditions affecting the spinal cord must be recognized as early as possible to prevent progression that may lead to permanent disability. Biopsy is rarely performed, thus the diagnosis and management rely on patient׳s history, physical examination, laboratory results, and imaging findings. Here we review the clinical presentations, pathophysiological mechanisms, and magnetic resonance imaging findings of myelopathies related to metabolic or toxic etiologies.info:eu-repo/semantics/publishedVersio

Metabolic Profile of Holstein Cows: Reference Values in Herds of Rio Grande do Sul - Brazil

Background: Assessing data from metabolic profile is a complex task depending on individual factors such as breed, age, sex and physiological status and environmental factors such as climate and management. Therefore, reference intervals produced in herds from different geographic regions are not always precise in the local reality. The aim of this study is to compile results of values of the most used parameters in the metabolic profile of healthy Holstein cows, grouped by lactation stage, obtained from studies in Rio Grande do Sul, Brazil, as an effort for the elaboration of regional reference intervals for dairy cattle in this geographic area.Materials, Methods & Results: The research was defined through the PICO strategy, considering multiparous Holstein cows from scientific studies carried out in Rio Grande do Sul, during the period 1996-2021, in which the nitrogen, glycidic, lipidic, enzymatic or mineral metabolic profile was determined. Google Scholar, Scientific Electronic Library and PubMed were the electronic databases selected for the search, using the following descriptors: "profile" and "metabolic" and "metabolic profile" and "dairy" or "cattle" or "cow" and "Brazil" and "southern" or "Rio Grande do Sul". Studies in Portuguese, English and Spanish languages were considered. The references of the articles initially selected were also verified, through ResearchGate and Google Scholar, in addition to unpublished data, unfinished studies or data in the so called "gray literature". It was possible to identify a total of 34 publications, which were tabulated to assess the scientific quality and bias risk. Studies were evaluated by a pair of independent reviewers, in order to compare results. Eligibility confirmation was given after the complete reading of the articles, evaluating the presence of all the inclusion selection criteria, such as adequate population and the intervention made. Examples of exclusion criteria for studies were studies or data duplication and methodological flaws that could compromise reliability. Thus, of the 34 studies selected in the initial screening, 14 remained. Thereafter, observational studies were preferably sought for data extraction. In the case of clinical trials, only data from control groups were used, in order to avoid disturbances due to interventions or treatments that could be applied. The reference intervals or means of the evaluated metabolites extracted from these studies were grouped in tables, in order to facilitate the comparison with research results obtained in different regions or even for comparison with future studies in the region of interest.Discussion: This retrospective study obtained mean values and standard deviation of the most used parameters in the metabolic profile of Holstein cows, grouped by lactation stage, obtained from studies performed in the state of Rio Grande do Sul, Brazil. Divergences were observed in several evaluations, especially in values of albumin, beta-hydroxybutyrate, aspartate transaminase and calcium, in spite of all data represented healthy animals from research trials with adequate environment and diet. It is important to consider the risk of time bias in this study, as within this 25-year period there was a very large evolution in dairy farming and some values may not be fully representative of current management systems in Holstein herds. Nevertheless, the results reinforce the importance of using regional reference values for the proper interpretation of metabolic profile results in dairy cows. In addition, the proposing of database index for regional averages or reference intervals, is useful for comparing results of metabolic profiles carried out in different geographic regions, in future studies to be performed in this particular region, or even to be utilized by field practitioners of this particular region.Keywords: biochemical blood profile, regional reference, healthy cows.Título: Perfil metabólico de vacas da raça Holandesa:valores de referência em rebanhos do Rio Grande do Sul - BrasilDescritores: perfil bioquímico sanguíneo, referência regional, vacas sadias

A EVASÃO APARENTE ENTRE ENGENHARIAS SOB A ÓTICA DA ANÁLISE DE REDES SOCIAIS

Embora muito se ressaltem as altas taxas de deserção acadêmica nos cursos de engenharia, as evasões aparentes pouco são evidenciadas, mesmo sendo parte do fenômeno. Dessa forma, o presente estudo aborda a evasão aparente entre habilitações da grande área de conhecimento das engenharias por meio da Análise de Redes Sociais - ARS. Como objetivo geral, descreveu-se essa rede por meio das métricas de densidade e grau de centralidade, analisando-se o fluxo migratório dos 259 casos de transferências internas de alunos entre as 15 habilitações de engenharia, no período de 2012 a 2016, na Universidade de Brasília. Entre os resultados, a rede densa e os rumos dos fluxos migratórios entre os cursos sugerem uma propensão de o aluno de engenharia apenas mudar de habilitação entre as possíveis na instituição, permanecendo na área. As engenharias mecânica, elétrica e produção despontaram como as mais buscadas. Por outro lado, engenharias criadas mais recentemente na instituição tenderam a perder alunos dentro da rede. As evidências do estudo permitiram concluir que o aluno, embora incerto quanto à habilitação, possuiu a área de conhecimento como certa

Integrated production of grapes for juice in southern Brazil.

New concepts of agricultural production should be introduced in Brazilian agriculture to become competitive. The integrated system is an agricultural technology that should be also applied to grape production. The purpose of this work was to evaluate two systems of agriculture production. Two plots (Plot IP), Vitis labrusca grapes and Hybrid, were chosen in fields conducted within the integrated production system (IPS) for juice production. All practices adopted in the plots were documented in a field book to ensure the traceability. The results were compared with Conventional System (CS) production of the same cultivars situated in two neighboring areas. The IPS plots provided a decrease in the amount of fungicides by 36.46% (fungicide g/ha). In Conventional System, 3,000 ml herbicide/ha were used. In IPS, herbicide was not applied due to the maintenance of the ground cover. Grapes produced in this system resulted in a yield 32.08% higher than in CS. There was no insecticide application in any of the two systems. The IPS provided a reduction in pesticide application without affecting yields and the biological assays revealed no presence of metabolism inhibitors. With the IPS, it is possible to product high-quality grapes that are safe for both consumers and farmersTrabalho apresentado nos Proceedings of the 8th International Conference on Integrated Fruit Production held in Kusadasi (Turkey), October 7-12, 2012

Aspectos biologicos e manejo integrado de Sternechus subsignatus na cultura da soja.

Aspectos biologicos e comportamentais; Distribuicao estacional; Danos; Manejo integrado; Rotacao de culturas; Controle na cultura-armadilha; Controle mecanico; Controle quimico; Epoca de semeadura; Preparo do solo.bitstream/item/195522/1/CT-22.pd

Viva ou deixe morrer: estratégias para o enfrentamento da COVID-19 sob a perspectiva empresarial em São Luís do Maranhão, Brasil

This study aimed to identify the strategies developed by micro and small tourism companies to face the crisis caused by COVID-19 in São Luís, Maranhão, Brazil. In addition, the effects of the pandemic on business were examined. Therefore, a qualitative, cross-sectional, descriptive and exploratory research project was developed with micro and small business in the following sectors: lodging, transportation, agency, F&B, consultancy, ceremonies and events. Data were collected through a semi-structured script containing the categories crisis impacts, crisis planning, implementation of crisis management and post-crisis management. A content analysis technique was used. The results show negative impacts, such as ‘financial difficulties’, and positive impacts, such as ‘professional qualification opportunities’. F&D companies achieved ‘improvements in revenue’ due to delivery. The strategies used to face the pandemic deal with marketing, finances, operational and HR management, and they vary according to the type of segments and stakeholders involved. In general, companies do not make contingency plans and act responsively to crises. Findings also point out the performance of public and private institutions in ‘technical and financial support’ to businesses, although ‘slow access to financial subsidies’ has been jeopardising the future of businesses. For the post-crisis period, firms aim for strategies that are in line with the new normal and that strengthen consumers’ sense of safety.En este artículo se buscó conocer las estrategias de las micro y pequeñas empresas (MPE) del turismo de São Luís (MA) para reaccionar ante la crisis causada por la COVID-19. Además, se detectaron los impactos de la pandemia en los negocios. Esta investigación es cualitativa, transversal, descriptiva y exploratoria que utilizó un guión semiestructurado con las categorías: impactos y gestión de crisis. Las entrevistas fueron desarrolladas con alojamientos, agencias (transporte y turismo), restaurantes, consultoría, bodas y eventos. Se utilizó la técnica de Análisis de Contenido. Los hallazgos indican impactos negativos, “dificultades financieras” y positivos, como “oportunidades de calificación profesional”. Los restaurantes lograron “mejoras en el desempeño financiero” debido a las entregas. Para reaccionar ante la crisis realizaron la gestión operativa, de marketing, finanzas y recursos humanos, que varían según los segmentos y las partes interesadas e involucradas. En general, las MPE no presentan planes de contingencia y actúan de manera reactiva ante la crisis. Se destacó, aún, el “apoyo técnico y financiero” de instituciones públicas y privadas, aunque el "acceso lento a los subsidios financieros" ha puesto en peligro el futuro de las empresas. Para el período posterior a la crisis, los negocios buscan estrategias que estén en línea con la "nueva normalidad" y mejoren la percepción de seguridad en los consumidores.Este trabalho objetivou identificar as estratégias desenvolvidas por micro e pequenas empresas (MPE) do turismo ludovicense para enfrentar a crise provocada pela COVID-19. Adicionalmente, detectou-se impactos da pandemia sobre os negócios. Metodologicamente, desenvolveu-se uma pesquisa qualitativa, transversal, descritiva e exploratória com MPE de hospedagem, transporte, agenciamento, A&B, consultoria, cerimonial e eventos. Os dados foram coletados, por meio de roteiro semiestruturado contendo as categorias: impactos e gerenciamento de crise. Utilizou-se a técnica de análise de conteúdo. Os resultados apontam impactos negativos, como “dificuldades financeiras”, e positivos, a exemplo das “oportunidades de qualificação profissional”. Empresas de A&B obtiveram “melhorias no faturamento” graças ao delivery. As estratégias para enfrentamento versam sobre gestão de marketing, finanças, operacional e pessoas, e variam conforme segmentos e stakeholders envolvidos. No geral, as empresas não fazem planos contingenciais e agem de forma responsiva às crises. Destacou-se a atuação de instituições públicas e privadas no “apoio técnico e financeiro” aos negócios, embora a “lentidão no acesso aos subsídios financeiros” venha comprometendo o futuro das MPE. Para o pós-crise, os empreendimentos almejam estratégias que estejam em consonância ao “novo normal” e fortaleçam a percepção de segurança nos consumidores

Comparação de custos entre os processos construtivos em concreto armado e em alvenaria estrutural em blocos cerâmico e de concreto

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Questiona-se a viabilidade econômica do processo construtivo em alvenaria estrutural em relação ao processo construtivo em concreto armado. Entre as obras em alvenaria estrutural, a indagação ocorre sobre qual tipo de unidade, de cerâmica ou de concreto, produz resultados mais efetivos em termos de custos. Este trabalho teve o objetivo de comparar o custo de um prédio de 4 pavimentos sem pilotis, com 4 apartamentos por andar e cada apartamento com área aproximada de 46m², entre o processo construtivo em alvenaria estrutural com blocos cerâmicos, o processo construtivo em alvenaria estrutural com blocos de concreto e o processos construtivo em concreto armado com vedação em blocos cerâmicos. A metodologia adotada foi aplicada em um estudo de caso de empreendimentos localizados na cidade de Curitiba/Paraná/Brasil. Obteve-se os dados da pesquisa por meio de medições realizadas em obras para todos os processos construtivos estudados. Estes empreendimentos são parte do plano PAR (Programa de Arrendamento Residencial) da Caixa Econômica Federal. No estudo de caso, avaliou-se somente os custos diretos envolvidos no processo, tal como o custo dos materiais, equipamentos e mão-de-obra. O custo dos materiais e equipamentos utilizados nas obras foram obtidos a partir do custo médio dos mesmos no período do trabalho. O custo da mão-de-obra foi avaliado por meio da produtividade dos operários em obra. Conclui-se que o processo em alvenaria estrutural em blocos cerâmicos apresentou melhores resultados com relação à economia, sendo o processo em concreto armado o mais desfavorável entre os estudados