Aplicação de tratamentos eletroquímicos integrados para remediação de solos e águas contaminadas com petróleo e pesticidas

Electrochemical technologies have been proposed as a promising alternative for the treatment of effluents and contaminated soils. Therefore, the objective of this work was to study the treatment of contaminated soils and wastewaters using electrochemical technologies. Thus, the study regarding the scale-up of the electrochemical system with continuous flow treatment of wastewater of the petrochemical industry was investigated using platinum electrodes supported on titanium (Ti / Pt), and boron-doped diamond (BDD). The results clearly showed that under the operating conditions studied and electrocatalytic materials employed, the better removal efficiency was achieved with BDD electrode reducing the chemical oxygen demand (COD) from 2746 mg L-1 to 200 mg L-1 in 5 h consuming 56.2 kWh m-3 . The decontamination of soils and effluents by petrochemical products was evaluated by studying the effects of electrokinetic remediation for removal of total petroleum hydrocarbons (HTP) from contaminated soil with diesel. The efficiency of this process was dependent on the electrolyte used Na2SO4 (96.46%), citric acid (81.36%) and NaOH (68.03%) for 15 days. Furthermore, the effluent after treatment of the soil was treated by electrochemical oxidation, achieving a good elimination of the organic polluting load dissolved. Depending on the physical behavior of wastewater contaminated with oil (emulsified state); atrazine emulsified effluents were investigated. The main characteristics of the effluent produced during the washing of contaminated soil were studied, being dependent on the surfactant dosage used; which determined its electrolytic treatment with BDD. The electrochemical oxidation of emulsified effluent of atrazine was efficient, but the key to the treatment is reducing the size of micelles.

Perspectiva sociológica en el estudio de la calidad del suelo y los indicadores integrados

El objetivo de este trabajo consiste en analizar la relevancia de construir indicadores integrados para estudiar la calidad de suelos a nivel regional, desde la perspectiva sociológica, considerando el impacto de la acción humana sobre la naturaleza. Por una parte, para acordar criterios y poder compararlos dentro del marco geográfico de los países integrantes del MERCOSUR; también, para monitorearlos en el tiempo constatando la evolución de algunas propiedades del recurso que permiten la identificación de niveles críticos de deterioro

Perspectiva sociológica en el estudio de la calidad del suelo y los indicadores integrados

El objetivo de este trabajo consiste en analizar la relevancia de construir indicadores integrados para estudiar la calidad de suelos a nivel regional, desde la perspectiva sociológica, considerando el impacto de la acción humana sobre la naturaleza. Por una parte, para acordar criterios y poder compararlos dentro del marco geográfico de los países integrantes del MERCOSUR; también, para monitorearlos en el tiempo constatando la evolución de algunas propiedades del recurso que permiten la identificación de niveles críticos de deterioro

Perspectiva sociológica en el estudio de la calidad del suelo y los indicadores integrados

El objetivo de este trabajo consiste en analizar la relevancia de construir indicadores integrados para estudiar la calidad de suelos a nivel regional, desde la perspectiva sociológica, considerando el impacto de la acción humana sobre la naturaleza. Por una parte, para acordar criterios y poder compararlos dentro del marco geográfico de los países integrantes del MERCOSUR; también, para monitorearlos en el tiempo constatando la evolución de algunas propiedades del recurso que permiten la identificación de niveles críticos de deterioro

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

RAMOS, A. S. M.; OLIVEIRA, M. A. Fatores de sucesso na implementação de sistemas integrados de gestão empresarial (ERP): estudo de caso em uma média empresa. In: ENCONTRO NACIONAL DE ENGENHARIA DE PRODUÇÂO, 22., 2002, Curitiba-PR. Anais... Porto Alegre-RS: ABEPRO, 2002. v. 1.

Resiliência, Coping e Autocompaixão em Cuidadores Formais da Rede Nacional de Cuidados Continuados Integrados

Introdução: Na literatura internacional e nacional verifica-se a inexistência de estudos sobre os correlatos psicológicos de cuidadores formais, como a resiliência e o coping. Apesar de se reconhecer a importância de uma prestação de cuidados mais compassivos e humanizados, mais uma vez, não existem estudos nesta área. Este facto estende-se aos cuidadores formais que trabalham com pessoas em situação de dependência, na Rede Nacional de Cuidados Continuados Integrados. Assim, foram nossos objetivos: caraterizar os cuidadores formais de algumas Unidades de Cuidados Continuados (UCC) da RNCCI em variáveis sociodemográficas e profissionais; analisar os seus níveis de resiliência, coping e autocompaixão; verificar se existem associações significativas entre estas variáveis e com as variáveis sociodemográficas e profissionais. Metodologia: 78 cuidadores formais (sexo feminino, n = 76; 97,4%), com uma média de idades de 35,45 anos (DP = 9,0) forneceram o seu consentimento informado para preencherem um questionário sociodemográfico e profissional, a Escala de Avaliação Global da Resiliência, o Brief COPE e a Self Compassion Scale (SELFCS). Resultados: Os cuidadores revelaram um nível médio de resiliência (total). A dimensão de coping com média mais elevada foi o Coping ativo e a com média mais baixa foi o Uso de substâncias. Na SELFCS a dimensão com média mais elevada foi o Calor/compreensão e a com média mais baixa foi o Isolamento. No geral, a pontuação total de resiliência correlacionou-se de forma positiva com as dimensões positivas da autocompaixão (SELFCS) e de forma negativa com as dimensões negativas desta escala. As dimensões mais positivas de coping correlacionaram-se de forma positiva com as dimensões positivas de autocompaixão e as mais negativas de coping com as dimensões negativas de autocompaixão. Quanto maior a idade dos cuidadores menor o nível de Suporte Emocional e maior o nível de Religião e Mindfulness. Mais horas de trabalho associaram-se a menor resiliência e a maior nível de Suporte Emocional Discussão: Este estudo revelou, ainda que numa amostra reduzida, que os cuidadores formais das UCC parecem revelar níveis equilibrados em correlatos psicológicos importantes quando se “cuida” de outra pessoa. Porém, as UCC devem preocupar-se em fomentar, junto dos cuidadores, níveis mais elevados de resiliência, estratégias mais positivas de coping e a compaixão auto e hétero dirigida, para assegurar um “cuidar” mais pleno quer para os profissionais, quer para aqueles que são cuidados. / Introduction: In the international and national literature, we verified the inexistence of studies about psychological correlates of formal caregivers, such as resilience and coping. Although the importance of more humanized and compassive care is recognized, again, there are no studies in this area. This is also verified regarding formal caregivers that work with people in a dependence situation, as in the National Network of Continuous Care. Our aims were to characterize the formal caregivers from some units of the National Network of Continuous Care in sociodemographic and professional variables; analyze these professionals levels of resilience, coping and self-compassion; verify if there are significant associations between these variables and with the sociodemographic and professional variables. Methodology: 78 formal caregivers (female, n = 76; 97,4%), with an mean age of 35,45 years (SD = 9,0) provided their informed consent to fill in a professional and sociodemographic questionnaire, the Global Resiliency Evaluation Scale, the Brief COPE and the Self Compassion Scale (SELFCS). Results: The caregivers showed a medium level of resilience. The coping dimension with the highest mean was Active coping and the dimension with the lowest mean was Substance Use. Regarding SELFCS the dimension with the highest mean was Warmth, contrasting with Isolation, the dimension with the lowest mean. Overall, the total score of resilience was positively correlated with self-compassion positive dimensions (SELFCS) and negatively correlated with the negative dimensions of this scale. The most positive dimensions of coping were positively correlated with the positive dimensions of self-compassion and the most negative dimensions of coping were correlated with the negative dimensions of self-compassion. Older caregivers showed lower use of Emotional support and higher level of Religion and Mindfulness use. More daily hours of work were associated with less resilience and higher Emotional Support. Discussion: This study revealed, although in a small sample, that Continuous Care Units (CCU) formal caregivers seem to have balanced levels of psychological correlates that are important while caring for others. However, the CCU should promote, in the caregivers higher levels of resilience, coping and self-compassion, to ensure a better care, simultaneously the professionals and patients.

Construção das capacidades organizacionais de tecnologia da informação no contexto dos sistemas institucionais integrados de gestão da UFRN

The IT capability is a organizational ability to perform activities of this role more effectively and an important mechanism in creating value. Its building process (stages of creation and development) occurs through management initiatives for improvement in the performance of their activities, using human resources and IT assets complementary responsible for the evolution of their organizational routines. This research deals with the IT capabilities related to SIG (integrated institutional management systems), built and deployed in UFRN (Universidade Federal do Rio Grande do Norte) to realization and control of administrative, academic and human resources activities. Since 2009, through cooperative agreements with federal and educational institutions of direct administration, UFRN has supported the implementation of these systems, currently involving more than 30 institutions. The present study aims to understand how IT capabilities, relevant in the design, implementation and dissemination of SIG, were built over time. This is a single case study of qualitative and longitudinal nature, performed by capturing, coding and analysis from secondary data and from semi-structured interviews conducted primarily with members of Superintenência de Informática, organizational unit responsible for SIG systems in UFRN. As a result, the technical, of internal relationship and external cooperation capabilities were identified as relevant in the successful trajectory of SIG systems, which have evolved in different ways. The technical capacity, initiated in 2004, toured the stages of creation and development until it reached the stage of stability in 2013, due to technological limits. Regarding the internal relationship capability, begun in 2006, it toured the stages of creation and development, having extended its scope of activities in 2009, being in development since then. Unlike the standard life cycle observed in the literature, the external cooperation capability was initiated by an intensity of initiatives and developments in the routines in 2009, which were decreasing to cease in 2013 in order to stabilize the technological infrastructure already created for cooperative institutions. It was still identified the start of cooperation in 2009 as an important event selection, responsible for changing or creating trajectories of evolution in all three capacities. The most frequent improvements initiatives were of organizational nature and the internal planning activity has been transformed over the routines of the three capabilities. Important resources and complementary assets have been identified as important for the realization of initiatives, such as human resources technical knowledge to the technical capabilities and external cooperation, and business knowledge, for all of them, as well as IT assets: the iproject application for control of development processes, and the document repository wiki. All these resources and complementary assets grew along the capacities, demonstrating its strategic value to SINFO/UFRN

Ecosistemas circuitos de consumo de obras pìctóricas y escultóricas en Guayaquil y su extensión Samborondón, de octubre de 2012 a septiembre de 2013

Esta investigación, pretende hacer visibles los circuitos de arte pictórico y escultórico de la ciudad de Guayaquil, estudiando durante el periodo de octubre de 2012 a septiembre de 2013, la conformación de su sistema, la identificación de sus actores, sus visiones del arte, las interdependencias que los vinculan y la influencia del entorno, bajo una perspectiva de ecosistema. Este estudio no pretende ser un inventario de artistas, ni galerías, sino una primera exploración de la compleja temática del consumo del arte.

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

RAMOS, A. S. M.; OLIVEIRA, M. A. Fatores de sucesso na implementação de sistemas integrados de gestão empresarial (ERP): estudo de caso em uma média empresa. In: ENCONTRO NACIONAL DE ENGENHARIA DE PRODUÇÂO, 22., 2002, Curitiba-PR. Anais... Porto Alegre-RS: ABEPRO, 2002. v. 1.

Matemática em atividades interdisciplinares: uma base para a estruturação dos seminários integrados

A partir do ano de 2012, lança-se uma proposta de reestruturação no Ensino Mé- dio no Estado do Rio Grande do Sul. Surge nessa proposta um elemento novo na grade curricular chamado de Seminário Integrado. Esse tem por objetivo aliar a formação geral à parte diversificada do currículo através de um planejamento interdisciplinar voltado à pesquisa. Diante desse cenário surge a motivação para elaborar esse trabalho, nele apresenta-se quatro atividades interdisciplinares relacionando a matemática com outras disciplinas. Nossa proposta é que essas atividades possam servir como uma possível base para elaboração e/ou estruturação de atividades nos Seminários Integrados. Junto com cada atividade apresentamos uma proposta de pesquisa relacionada à prática social, bem como em quais sentidos essas atividades poderão preparar o jovem para ser inserido no mercado de trabalho. O material elaborado pelos professores envolvidos e a escolha dos métodos de ensino utilizados são subsidiados por uma pesquisa bibliográfica que fizemos a respeito do tema interdisciplinaridade. As atividades elaboradas foram aplicadas em duas turmas de terceiro ano do Ensino Médio, em uma escola particular na cidade de Pelotas, Rio Grande do Sul. Apresentamos alguns dados que consideramos relevantes em termos de resultados relacionados ao ganho pedagógico.

Projeto, implementação e análise de um conversor CC-CC de alto ganho e alto rendimento para aplicações fotovoltaicas

In recent years the photovoltaic generation has had greater insertion in the energy mix of the most developed countries, growing at annual rates of over 30%. The pressure for the reduction of pollutant emissions, diversification of the energy mix and the drop in prices are the main factors driving this growth. Grid tied systems plays an important role in alleviating the energy crisis and diversification of energy sources. Among the grid tied systems, building integrated photovoltaic systems suffers from partial shading of the photovoltaic modules and consequently the energy yield is reduced. In such cases, classical forms of modules connection do not produce good results and new techniques have been developed to increase the amount of energy produced by a set of modules. In the parallel connection technique of photovoltaic modules, a high voltage gain DC-DC converter is required, which is relatively complex to build with high efficiency. The current-fed isolated converters explored in this work have some desirable characteristics for this type of application, such as: low input current ripple and input voltage ripple, high voltage gain, galvanic isolation, feature high power capacity and it achieve soft switching in a wide operating range. This study presents contributions to the study of a high gain and high efficiency DC-DC converter for use in a parallel system of photovoltaic generation, being possible the use in a microinverter or with central inverter. The main contributions of this work are: analysis of the active clamping circuit operation proposing that the clamp capacitor connection must be done on the negative node of the power supply to reduce the input current ripple and thus reduce the filter requirements; use of a voltage doubler in the output rectifier to reduce the number of components and to extend the gain of the converter; detailed study of the converter components in order to raise the efficiency; obtaining the AC equivalent model and control system design. As a result, a DC-DC converter with high gain, high efficiency and without electrolytic capacitors in the power stage was developed. In the final part of this work the DC-DC converter operation connected to an inverter is presented. Besides, the DC bus controller is designed and are implemented two maximum power point tracking algorithms. Experimental results of full system operation connected to an emulator and subsequently to a real photovoltaic module are also given.

Construção das capacidades organizacionais de tecnologia da informação no contexto dos sistemas institucionais integrados de gestão da UFRN

The IT capability is a organizational ability to perform activities of this role more effectively and an important mechanism in creating value. Its building process (stages of creation and development) occurs through management initiatives for improvement in the performance of their activities, using human resources and IT assets complementary responsible for the evolution of their organizational routines. This research deals with the IT capabilities related to SIG (integrated institutional management systems), built and deployed in UFRN (Universidade Federal do Rio Grande do Norte) to realization and control of administrative, academic and human resources activities. Since 2009, through cooperative agreements with federal and educational institutions of direct administration, UFRN has supported the implementation of these systems, currently involving more than 30 institutions. The present study aims to understand how IT capabilities, relevant in the design, implementation and dissemination of SIG, were built over time. This is a single case study of qualitative and longitudinal nature, performed by capturing, coding and analysis from secondary data and from semi-structured interviews conducted primarily with members of Superintenência de Informática, organizational unit responsible for SIG systems in UFRN. As a result, the technical, of internal relationship and external cooperation capabilities were identified as relevant in the successful trajectory of SIG systems, which have evolved in different ways. The technical capacity, initiated in 2004, toured the stages of creation and development until it reached the stage of stability in 2013, due to technological limits. Regarding the internal relationship capability, begun in 2006, it toured the stages of creation and development, having extended its scope of activities in 2009, being in development since then. Unlike the standard life cycle observed in the literature, the external cooperation capability was initiated by an intensity of initiatives and developments in the routines in 2009, which were decreasing to cease in 2013 in order to stabilize the technological infrastructure already created for cooperative institutions. It was still identified the start of cooperation in 2009 as an important event selection, responsible for changing or creating trajectories of evolution in all three capacities. The most frequent improvements initiatives were of organizational nature and the internal planning activity has been transformed over the routines of the three capabilities. Important resources and complementary assets have been identified as important for the realization of initiatives, such as human resources technical knowledge to the technical capabilities and external cooperation, and business knowledge, for all of them, as well as IT assets: the iproject application for control of development processes, and the document repository wiki. All these resources and complementary assets grew along the capacities, demonstrating its strategic value to SINFO/UFRN

Vinculação do Adulto e Sistema Comportamental de Prestação de Cuidados em Toxicodependentes integrados em Comunidade Terapêutica e em Programa de Metadona

Dissertação de Mestrado apresentada no Instituto Superior de Psicologia Aplicada para obtenção de grau de Mestre na especialidade de Psicologia Clínica

Manual de prácticas de laboratorio. Análisis de circuitos 1

Este libro está dirigido a estudiantes que toman su primer curso de Ingeniería Electrónica, Ingeniería de Telecomunicaciones o programas en el campo de los circuitos resistivos. Desde el conocimiento del código de colores de los resistores, pasando por los circuitos serie, paralelo y mixto; el manejo de instrumentos de medida como multímetro en función de óhmetro, voltímetro y amperímetro; el osciloscopio y el generador de señales, son algunos de los temas que se desarrollan en el presente manual.