Conditions for Equality between Lyapunov and Morse Decompositions

Let $Q\rightarrow X$ be a continuous principal bundle whose group $G$ is reductive. A flow $\phi$ of automorphisms of $Q$ endowed with an ergodic probability measure on the compact base space $X$ induces two decompositions of the flag bundles associated to $Q$. A continuous one given by the finest Morse decomposition and a measurable one furnished by the Multiplicative Ergodic Theorem. The second is contained in the first. In this paper we find necessary and sufficient conditions so that they coincide. The equality between the two decompositions implies continuity of the Lyapunov spectra under pertubations leaving unchanged the flow on the base space

Mensurando e avaliando a eficiência dos gastos nos cursos de graduação da UnB

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Economia, Administração e Contabilidade, Departamento de Economia, Programa de Pós-Graduação em Economia, 2015.O objetivo deste trabalho é mensurar e avaliar a eficiência dos gastos nos cursos de graduação da Universidade de Brasília nos anos de 2008 a 2010. Para alcançar este objetivo foi utilizado o método não-paramétrico, denominado Análise Envoltória de Dados (DEA). Os dados utilizados para a realização deste estudo foram extraídos do Sistema Integrado de Administração de Recursos Humanos do Governo Federal (SIAPE), Sistema de Graduação da Universidade de Brasília (SIGRA/UnB) e do sítio oficial do Instituto Nacional de Estudos e Pesquisa Educacionais Anísio Teixeira (INEP). Os insumos (inputs) utilizados foram a média de formação geral dos alunos ingressantes que fizeram o Exame Nacional de Desempenho de Estudantes (ENADE); média salarial dos docentes com regime de dedicação exclusiva e a Relação Aluno Professor (RAP). Já como produto (output), utilizamos a média de formação geral dos alunos concluintes do Exame Nacional de Desempenho de Estudantes (ENADE). Primeiramente, estimamos as fronteiras técnica e de escala, o que possibilitou ordená-los com maior eficiência técnica e de escala. Pelos resultados foi possível observar que os cursos de Relações Internacionais, Serviço Social, Enfermagem, Agronomia, Farmácia, Medicina, Odontologia e Design são os que apresentaram maior eficiência técnica, enquanto os cursos de Enfermagem e Serviço Social apresentam maior eficiência de escala.The objetive of this work is to measure and evaluate the efficiency of spending in undergraduate courses at the University of Brasilia in 2008 to 2010. To achieve the results and comparisons as the efficiency of public spending in analyzed courses was used the method not parametric, called Data Envelopment Analysis (DEA). The data used for this work were extracted from the System of Human Resources Management of the Federal Govermment (SIAPE), System Graduate of the University of Brasilia (SIGRA/UnB) and the official website of the National Institute of Educational Studies and Research Anísio Teixeira (INEP). The inputs used were the average overall formation of the entering students who took the National Examination of Student Performance (ENADE); average wage of the professoriate with exclusive dedication and the Relationship Student Teacher (RAP), being compared with the output which is the average of the general education of the students who completed National Examination of Student Performance (ENADE). In the outcome was established a ranking of courses with higher technical efficiency and efficiency of scale, and after data analysis, it is evident that the undergraduate courses of International Relations, Social Work, Nursing, Agronomy, Pharmacy, Medicine, Dentistry and Design are the ones that showed technical efficiency, whereas the undergraduate courses of Nursing and Social Work present efficiency of scale

Not just another aspect of pleasure: Functionality as a distinct component of emotions

According to Rational Emotive Behaviour Therapy (REBT, Ellis, 1985; Ellis & DiGiuseppe, 1993) functionality is the central criterion when distinguishing between adaptive and maladaptive emotions. Hereby, adaptive emotions signify appropriate responses to an eliciting event, whereas, maladaptive emotions signify inappropriate reactions. This research examines relevant characteristics of emotions (i.e., pleasure, arousal, duration, influence on life, and typicality) as potential predictors of functionality. In Study 1 (N= 96) using single item measures results indicated that pleasure and arousal had a significant predictive value on functionality, whereas the predictive value of the other dimensions was limited. Study 2 (N= 240) widely confirmed these results by using different psychometrically more reliable scales. In both studies all predictors explained less than 30% of the variance of functionality. Functionality should be regarded as a predominantly independent characteristic of emotions, which is partially associated with pleasure and arousal

Strategies for the bioremediation of azo dyes containing wastewaters

Publicado em "Book of abstracts of the 2nd Meeting of the Institute for Biotechnololgy and Bioengineering"Azo dyes are an important class of wastewater pollutants resulted especially from textile industry. Biological treatment based on the anaerobic azo bound reductive cleavage, followed by a second step for the transformation of the resulted aromatic amines, seems promising. In our studies, the surface chemistry of a commercial activated carbon (AC) was selectively modified by chemical oxidation and thermal treatments and tested as a natural redox mediator on chemical and biological anaerobic azo dye reduction [1]. Batch experiments with 0.1 g L−1AC demonstrated an increase of the first-order rates, up to 9-fold, as compared with assays without AC. Thermal treated samples gave better results due to their positively charged surface, favouring electrostatic attraction between the carbon and the anionic dyes tested. The low amount of AC used and the positive results demonstrated, constitutes a significant breakthrough in the field of redox mediated processes which will certainly open new perspectives for wastewater treatment processes. In order to investigate the fate of aromatic amines, two UASB reactors were operated under denitrifying conditions: R1 contained nitrate and R2 a nitrate and nitrite mixture as terminal electron acceptors [2]. The R1 results demonstrated that aniline could be degraded under denitrifying conditions while sulfanilic acid remains. The presence of nitrite in the influent of R2, caused a chemical reaction that led to immediate disappearance of both aromatic amines and the formation of an intense yellow solution. Based on the HPLC-MS analysis, the structures of possible products were proposed. Denitrification activity tests suggest some detoxification

Anaerobic biodegradation of aniline under different electron accepting conditions

Aromatic amines are important industrial chemicals. Due to their high toxicity and persistency in both water and soils, they are of environmental concern. Aniline is not biodegradable in normal anaerobic condition. A novel approach of anaerobic biodegradation coupled with selective redox mediators, is proposed. Different redox mediators, namely manganese dioxide, Ferric citrate, ferrous chloride and magnetic iron oxide nanoparticle were tested. Fe3O4 nanoparticles, with size of 10 nm, were shown as the best, leading to 98 % of aniline removal efficiency within 24 h of operation at 37 °C. Biodegradation of aniline followed a pseudo first order kinetic model. Products of reaction were identified by GC/MS, revealing that the biodegradation occurred via catechol pathway. Methanogenic activity tests suggest that an IC50 of aniline is ~10 mM and that Fe3O4 nanoparticles are not toxic on un-adapted biomass

Efficacy of three methods for inserting calcium hydroxide-based paste in root canals

To compare the quality of calcium hydroxide paste fillings performed by three different techniques. Sixty extracted maxillary central incisors, with previous root canal treatment, were decoronated and the gutta-percha was completely removed from the root canals. Subsequently, the canals were filled with a calcium hydroxide-based paste composed of calcium hydroxide, bismuth carbonate, and glycerin. The study samples were divided into the following three groups on the basis of three insertion techniques (n = 20, each): conventional technique using a hand instrument (MAN), rotary Lentulo spiral (LEN) technique, and a combined technique combining conventional hand files with sonic activation through the EndoActivator device (EA). The quality of fillings was evaluated radiographically by two examiners on the basis of the amount of voids and the apical limit. The canals filled with LEN or MAN had less void volume compared to the EA technique (P >0.01), with no significant differences between them. Considering the apical limits, the three tested techniques showed comparable results (P >0.05). A combined approach utilizing hand files with sonic activation showed no enhancements over the LEN or MAN techniques on the quality of intracanal placement of calcium hydroxide paste

Dyes-environmental impact and remediation

Dyes are an important class of synthetic organic compounds used in many industries, especially textiles. Consequently, they have become common industrial environmental pollutants during their synthesis and later during fibre dyeing. Textile industries are facing a challenge in the field of quality and productivity due to the globalization of the world market. As the highly competitive atmosphere and the ecological parameters become more stringent, the prime concern of the textile processors is to be aware of the quality of their products and also the environmental friendliness of the manufacturing processes. This in turn makes it essential for innovations and changes in these processes, and investigations of appropriate and environmentally friendly treatment technologies or their residues. The large-scale production and extensive application of synthetic dyes can cause considerable environmental pollution, making it a serious public concern. Legislation on the limits of colour discharge has become increasingly rigid. There is a considerable urgent need to develop treatment methods that are effective in eliminating dyes from their waste. Physicochemical and biological methods have been studied and applied, although each has its advantages and disadvantages, with the choice being based on the wastewater characteristics, available technology and economic factors. Some industrial-scale wastewater treatment systems are now available; however, these are neither fully effective for complete colour removal nor do they address water recycling. This chapter outlines the background of dye chemistry, the application areas and the impact of dyeing effluents in the environment. The processes/techniques being implemented and developed for wastewaters remediation are revisited

AVALIAÇÃO DA REDE SOCIOASSISTENCIAL NA PROTEÇÃO DE CRIANÇAS E ADOLESCENTES EM JOÃO PESSOA/PB

RESUMO: O estudo apresenta os resultados do projeto de pesquisa bibliográfico e documental, elaborado no decorrer do Estágio Supervisionado II do curso de graduação em Serviço Social na Universidade Federal da Paraíba (UFPB). A pesquisa buscou analisar a cobertura de atendimento da rede socioassistencial do município de João Pessoa que oferecem serviços a crianças e adolescentes. A metodologia da pesquisa foi norteada por uma dimensão técnica, ideológica e cientifica, buscando ultrapassar o senso comum, direcionado por um eixo investigativo e analítico no materialismo histórico dialético. Os dados coletados na pesquisa foram analisados de maneira quantitativa e qualitativa, possibilitando mensurar a informações e apreender os fenômenos envolvidos. Os resultados obtidos na pesquisa revelaram uma visão ampliada dos serviços da rede socioassistenciais que estão distribuídos em João Pessoa e a capacidade desses serviços em atender as demandas de crianças e adolescentes conforme o Sistema Único de Assistência Social (SUAS)

Incertidumbre frente al cáncer infantil: entender las necesidades de la madre

Os objetivos deste estudo foram identificar as necessidades da mãe durante a internação do filho com câncer e compreender como as incertezas diante da doença configuram-se nesta experiência. O referencial teórico do estudo foi o Interacionismo Simbólico e o referencial metodológico, o Interacionismo Interpretativo. A coleta de dados foi conduzida por meio de entrevistas semiestruturadas. Participaram do estudo 10 mães de crianças hospitalizadas em uma instituição especializada no município de São Paulo. Foram identificadas três categorias descritivas das necessidades experienciadas pelas mães: (1) Necessidade de estar presente e acompanhar o tratamento; (2) Necessidade de ser amparada nos momentos de fraqueza; (3) Necessidade de manter vínculo com a família. As necessidades da mãe durante a internação da criança com câncer têm caráter multidimensional, e o reconhecimento delas é essencial para garantir a criação de um contexto de cuidado que potencialize o papel da mãe no suporte à criança com câncer.The objectives of this study were to identify the mother's needs during the hospitalization of the child with cancer and understand how the uncertainties in the disease shape up in this experience. The theoretical framework of the study was the symbolic interactionism and the methodological framework, the interpretative interactionism. The data were obtained by semi-structured interviews. ten (10) mothers, whose children were hospitalized in a specialized institution in são paulo, participated of the study. We identified three categories that describe the mother's needs: 1) need of being with and follow the treatment; 2) need of being supported during weakness; 3) need to maintain ties with the family. The mother's needs during the hospitalization of the child with cancer have multidimensional character and its recognition is essential to guarantee the creation of a context that raises the mother's function supporting the child with cancer.Los objetivos de este estudio fueron identificar las necesidades de la madre durante la internación del hijo con cáncer y comprender como la incertidumbre frente a la enfermedad se ubican dentro de esta experiencia. El marco teórico del estudio fue el Interaccionismo Simbólico y el marcol metodológico, el Interaccionismo Interpretativo. La recolección de datos se llevó a cabo a través de entrevistas semi-estructuradas. Participaron del estudio 10 madres de niños internados en una institución especializada en la ciudad de São Paulo. Se identificaron tres categorías descriptivas de las necesidades vividas por las madres: (1) Necesidad de estar presente y estar al pendiente del tratamiento; (2) Necesidad de apoyo en los momentos de la debilidad; (3) Necesidad de mantener el vínculo con la familia. Las necesidades de la madre durante la internación del niño con cáncer tienen carácter multidimensional y el reconocimiento de los mismos es fundamental para garantizar la creación de un ambiente de cuidado que refuerce el papel de la madre en la apoyo al niño con cáncer