Providing stringent star formation rate limits of z∼\sim2 QSO host galaxies at high angular resolution

We present integral field spectrograph (IFS) with laser guide star adaptive optics (LGS-AO) observations of z=2 quasi-stellar objects (QSOs) designed to resolve extended nebular line emission from the host galaxy. Our data was obtained with W. M. Keck and Gemini-North Observatories using OSIRIS and NIFS coupled with the LGS-AO systems. We have conducted a pilot survey of five QSOs, three observed with NIFS+AO and two observed with OSIRIS+AO at an average redshift of z=2.15. We demonstrate that the combination of AO and IFS provides the necessary spatial and spectral resolutions required to separate QSO emission from its host. We present our technique for generating a PSF from the broad-line region of the QSO and performing PSF subtraction of the QSO emission to detect the host galaxy. We detect H$\alpha$ and [NII] for two sources, SDSS J1029+6510 and SDSS J0925+06 that have both star formation and extended narrow-line emission. Assuming that the majority of narrow-line H$\alpha$ is from star formation, we infer a star formation rate for SDSS J1029+6510 of 78.4 M$_\odot$yr$^{-1}$ originating from a compact region that is kinematically offset by 290 - 350 km/s. For SDSS J0925+06 we infer a star formation rate of 29 M$_\odot$yr$^{-1}$ distributed over three clumps that are spatially offset by $\sim$ 7 kpc. The null detections on three of the QSOs are used to infer surface brightness limits and we find that at 1.4 kpc distance from the QSO that the un-reddened star formation limit is $<$ 0.3 M$_\odot$yr$^{-1}$kpc$^{-2}$. If we assume a typical extinction values for z=2 type-1 QSOs, the dereddened star formation rate for our null detections would be $<$ 0.6 M$_\odot$yr$^{-1}$kpc$^{-2}$. These IFS observations indicate that if star formation is present in the host it would have to occur diffusely with significant extinction and not in compact, clumpy regions.Comment: 17 pages, 7 figures, 7 tables, Accepted to Ap

Mathematical control theory and Finance

Control theory provides a large set of theoretical and computational tools with applications in a wide range of fields, running from ”pure” branches of mathematics, like geometry, to more applied areas where the objective is to find solutions to ”real life” problems, as is the case in robotics, control of industrial processes or finance. The ”high tech” character of modern business has increased the need for advanced methods. These rely heavily on mathematical techniques and seem indispensable for competitiveness of modern enterprises. It became essential for the financial analyst to possess a high level of mathematical skills. Conversely, the complex challenges posed by the problems and models relevant to finance have, for a long time, been an important source of new research topics for mathematicians. The use of techniques from stochastic optimal control constitutes a well established and important branch of mathematical finance. Up to now, other branches of control theory have found comparatively less application in financial problems. To some extent, deterministic and stochastic control theories developed as different branches of mathematics. However, there are many points of contact between them and in recent years the exchange of ideas between these fields has intensified. Some concepts from stochastic calculus (e.g., rough paths) have drawn the attention of the deterministic control theory community. Also, some ideas and tools usual in deterministic control (e.g., geometric, algebraic or functional-analytic methods) can be successfully applied to stochastic control. We strongly believe in the possibility of a fruitful collaboration between specialists of deterministic and stochastic control theory and specialists in finance, both from academic and business backgrounds. It is this kind of collaboration that the organizers of the Workshop on Mathematical Control Theory and Finance wished to foster. This volume collects a set of original papers based on plenary lectures and selected contributed talks presented at the Workshop. They cover a wide range of current research topics on the mathematics of control systems and applications to finance. They should appeal to all those who are interested in research at the junction of these three important fields as well as those who seek special topics within this scope.info:eu-repo/semantics/publishedVersio

COMPREENSÃO DA ADVERSIDADE AO ACESSO À SAÚDE DOS POVOS INDÍGENAS: UMA REVISÃO DA LITERATURA

The health provided to indigenous peoples cannot be restricted to technological resources only, it must be linked to their traditional culture so that it is possible to obtain better results in terms of health-disease at the local level. The objective of this work is, through the review of the recent literature, to understand more clearly how the indigenous peoples have access to health services and how is the attention given to them. Method: The analysis performed was obtained through online surveys in national journals. This is an integrative review of the literature using the electronic databases Scientific Electronic Library Online (SCIELO) and Scientific and Technical Literature of Latin America and the Caribbean (LILACS), where the time cut for the inclusion of 2015 publications was established to 2019. 7 scientific articles were selected. Results: Through the selection of articles, a huge disregard for indigenous health was observed, as they submitted to unpleasant situations, of very poor quality, often, and the lack of humanization in caring for them, as well as the traditional way how health care is carried out fails to meet the demand of indigenous peoples. Conclusion: It was concluded that indigenous health, despite the evolution over time, still needs to be improved in several aspects and to have more attention, so that, in this way, they can give them what should in fact be guaranteed.A saúde fornecida aos povos indígenas não pode se restringir apenas a recursos tecnológicos, deve ser vinculada a sua cultura tradicional para que seja possível obter melhores resultados no quesito saúde-doença ao âmbito local. O objetivo deste trabalho é, através da revisão da literatura recente, compreender com mais clareza como se dá o acesso dos povos indígenas a serviços de saúde e como é a atenção dada a eles. Método: A análise realizada foi obtida por meio de pesquisas on-line em periódicos nacionais. Trata-se de uma revisão integrativa da literatura utilizando as bases de dados eletrônicas Scientific Electronic Library Online (SCIELO) e Literatura Científica e Técnica da América Latina e Caribe (LILACS), onde foi estabelecido o recorte de tempo para a inclusão de publicações de 2015 a 2019. Foram selecionados 7 artigos científicos. Resultados: Por meio da seleção dos artigos, foi observado um enorme descaso com a saúde indígena, por se submeterem a situações desagradáveis, de péssima qualidade, muitas das vezes, e a falta de humanização nos cuidados com os mesmos, bem como a forma tradicional como é realizada os cuidados em saúde não consegue atingir a demanda dos povos indígenas. Conclusão: Concluiu-se que, a saúde indígena, apesar da evolução ao longo do tempo, ainda assim precisa ser aperfeiçoada em vários aspectos e ter mais atenção, para que assim, possam dar a eles o que de fato os deveria ser garantido

Multilevel Modeling of 1-3 Piezoelectric Energy Harvester Based ‎on Porous Piezoceramics

The paper presents a computer analysis of the properties of a piezoelectric composite consisting of porous piezoceramic rods regularly arranged in an elastic matrix (piezocomposite with a connectivity of 1-3). The porous piezoceramic PZT-4 is used based on porous piezoceramics as an active material. The calculation of material properties is carried out based on a multilevel approach. First, the effective moduli of porous piezoceramics are determined, and then a 1-3 piezocomposite with rods having the calculated homogeneous properties is analyzed. The simulation uses the homogenization method based on the Hill lemma and the finite element method, as well as approximate analytical models. The effective properties of 1-3 composite are determined for various percentages of porosity of piezoceramic rods, which are a composite of 3-0 connectivity. Calculations were performed in the software package ACELAN-COMPOS. The calculated properties are used in finite element models to evaluate the effectiveness of composite materials in sensors and energy harvesting devices. Two cases of stiffness of an isotropic matrix are considered, which correspond to the stiffness of a porous composite at 50% and 80% porosity. The electromechanical properties, such as electro-mechanical coupling coefficient and output potential, for different transducers models made from the proposed composite are analyzed

Elements which precipitate conjugal violence: the discourse of men in criminal prosecution

Objetivo: Desvelar os elementos precipitadores de violência conjugal, a partir do discurso de homens em processo criminal. Método: Trata-se de um estudo de abordagem qualitativa, desenvolvido em uma Vara de Violência Doméstica e Familiar contra Mulher de Salvador, Bahia, Brasil. Resultados: Foram realizadas entrevistas com 23 homens. Emergiram as ideias centrais: filhos e interferência da família; mudança no comportamento da mulher; sentimento de posse; descoberta de relações extraconjugais da mulher; ausência de relação sexual marital; e uso de álcool e outras drogas pelos homens. Conclusão: Segundo o discurso dos homens, vários são os elementos que precipitam a violência conjugal. Conhecer esses elementos pode subsidiar ações para a prevenção do fenômeno, sobretudo a partir de estratégias pacíficas de resoluções de conflitos.Objetivo: Desvelar los elementos precipitadores de violencia conyugal mediante el discurso de varones en proceso criminal. Método: Se trata de un estudio de abordaje cualitativo, desarrollado en un Juzgado de Violencia Doméstica y Familiar contra la Mujer de Salvador, Bahía, Brasil. Resultados: Se llevaron a cabo entrevistas con 23 hombres. Emergieron las ideas centrales: hijos e interferencia de la familia; cambio en el comportamiento de la mujer; sentimiento de posesión; descubierta de relaciones extraconyugales de la mujer; ausencia de relación sexual marital; y adicción al alcohol y a otras drogas por los hombres. Conclusión: Según el discurso de los varones, distintos son los elementos que precipitan la violencia conyugal. Conocer dichos elementos puede subsidiar acciones para la prevención del fenómeno, sobre todo desde unas estrategias pacíficas de resoluciones de conflictos.Objective: Unveiling the precipitating elements of conjugal violence based on the discourse of men undergoing criminal prosecution. Method: This is a qualitative study developed in a Domestic Violence and Family Violence Campaign against Women from Salvador, Bahia, Brazil. Results: We interviewed 23 men. The following central ideas emerged: children and family interference; change in woman’s behavior; feeling of ownership; discovery of extramarital affairs of women; absence of marital sexual intercourse; and use of alcohol and other drugs by men. Conclusion: Several elements precipitate marital violence according to the mens’ discourse. Knowing these elements can subsidize actions for preventing the phenomenon, especially from implementing peaceful conflict resolution strategies

SISTEMA PRODUTO-SERVIÇO VOLTADO PARA A ERRADICAÇÃO DA FOME E INCENTIVO A AGRICULTURA SUSTENTÁVEL

A erradicação da fome e da pobreza e o incentivo a agricultura sustentável, são pauta para discussões a nível global, e são um caminho longo a ser percorrido. Como diretrizes, tem-se os dezessete Objetivos de Desenvolvimento Sustentável (ODS) da Organização das Nações Unidas (ONU), que agrupam metas a serem atingidas visando um mundo mais saudável e sustentável. O Sistema Produto-Serviço (Product-Service System – PSS), visa a desmaterialização, com foco nos resultados e soluções de problemas. Diante disso, o objetivo do estudo é evidenciar diretrizes importantes para a criação de propostas que contemplem o PSS e servir de incentivo a aplicação do mesmo. A lacuna de pesquisa foi definida a partir de análise bibliométrica, que evidencia a relevância do PSS, ODS, agricultura urbana, fome zero de forma isolada no meio acadêmico, mas quando agrupados os assuntos, pouco se encontra