256 research outputs found
Mesozoic Coleopteran Faunas fromArgentina: Geological Context, Diversity, Taphonomic Observations, and Comparison with Other Fossil Insect Records
The order Coleoptera is the most diversified group of the Class Insecta and is the largest group of the Animal Kingdom. This contribution reviews the Mesozoic insects and especially the coleopteran records from Argentina, based on bibliographical and unpublished materials (86 described species, 526 collected specimens). The material came from different geological units from the late Middle Triassic to the Late Triassic (Bermejo, Cuyo, and Malargüe basins) to the Middle-Late Jurassic and Early Cretaceous (Deseado Massif, Cañadón Asfalto, and San Luis Basin). The coleopteran record is composed of 29 described species with 262 collected specimens (isolated elytra) mainly represented by Triassic species and only four specimens recorded in Jurassic units, all of them currently unpublished. These fossil coleopterans provide fundamental information about the evolution of insects in the Southern Hemisphere and confirm the Triassic Argentinean insect deposits to be among the most important in the world.Fil: Lara, Maria Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Vaz Tassi, Lara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentin
Adaptive SPECT: personalizing medical imaging
We develop modern techniques for image quality evaluation and optimization of imaging systems, and use them to control adaptive SPECT systems. Our results should contribute to the development of more personalized and efficient medical imaging
DIÁLOGOS ENTRE EXPOSIÇÕES MUSEOLÓGICAS E CINEMA DOCUMENTÁRIO: análise das técnicas para a construção de narrativas
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Filosofia e Ciências Humanas. MuseologiaA presente pesquisa tem como propósito desenvolver um diálogo entre as áreas da Museologia
e do Cinema, a fim de analisar pontos de convergência e divergência, a partir da perspectiva da
construção narrativa em Exposições Museológicas e Cinema Documentário, considerando os
elementos técnicos referentes a cada uma das áreas. O objetivo geral desta pesquisa é investigar
a construção narrativa do cinema documentário e da exposição museológica. Os objetivos
específicos são: identificar os elementos técnicos de construção de documentários e exposições
museológicas, interpretar o cinema documentário e exposições museológicas enquanto discurso
ideológico e analisar as convergências e divergências em relação ao cinema documentário e as
exposições museológicas, tendo como base os elementos técnicos. A metodologia ocorreu a
partir da análise dos elementos técnicos de ambas as áreas, tendo em vista o documentário
Arquitetura da Destruição e a exposição Arte Degenerada como objetos de pesquisa e análise.
Como resultado, podemos compreender que a construção de narrativa tanto no cinema
documentário quanto em exposições museológicas está atrelada à manipulação de elementos
técnicos, por muitas vezes em prol de um discurso ideológico. Esta pesquisa pretende contribuir
para uma aproximação entre os campos do Cinema e da Museologia, tendo em mente as
discussões técnicas e de teorias de memória comum aos dois campos, uma vez que atuam
enquanto construtores de discursos sociais.The present research aims to develop a dialogue between the areas of Museology and Cinema,
in order to analyze points of convergence, from the perspective of narrative construction in
Museums Exhibitions and Documentary Cinema, considering the technical elements related to
each of the areas. The general objective of this research is to investigate the narrative
construction of documentary cinema and museums exhibitions; The specific objectives are: to
identify the technical elements of construction of documentaries and museums exhibitions,
interpret documentary cinema and museums exhibitions as an ideological discourse and analyze
the convergences and divergences in relation to documentary cinema and museums exhibitions,
based on the technical elements. The methodology occurred from the analysis of technical
elements from both areas, considering the documentary Architecture of Doom (1989) and the
Degenerated Art (1937) exhibition as objects of research and analysis. As a result, we can
understand that the construction of narrative both in documentary cinema and in museums
exhibitions is linked to the manipulation of technical elements, often for the sake of an
ideological discourse. It is concluded that this research intends to contribute to an
approximation between the fields of Cinema and Museology, bearing in mind the discussions
of techniques and theories of memory, common to both fields, as they act as constructors of
social discourses
Understanding the process of disclosure to HIV-infected children in Kinshasa, Democratic Republic of the Congo
In 2006, 2.5 million children under age 15 were living with HIV infection, over 90 percent in developing countries. Antiretroviral treatment (ART) increases the likelihood that HIV-infected children will survive to adolescence and beyond. Children on ART are often not told their diagnosis, despite some evidence that informing them can have positive psychosocial and clinical outcomes. This study's goal was to identify factors associated with disclosure patterns to HIV-infected children in the Democratic Republic of Congo (DRC), in order to develop appropriate, effective interventions to support families. We conducted 201 structured interviews with primary caregivers who had not informed their child, ages 5-17, of his/her diagnosis, measuring factors at individual, interpersonal, and community levels possibly associated with disclosure patterns. In-depth interviews were conducted with 8 caregiver-child dyads whose children, ages 8-17, had been told their diagnosis; these focused on experiences throughout the disclosure process, which to date have not been documented in sub-Saharan Africa. Caregivers who had not yet told their child of her/his HIV status fell into one of three groups: nearly 50% had given their child no information, 15% had given partial information; and 33% had provided misleading information. Multinomial logistic regression found these patterns to be associated with: (1) caregiver gender, age, and stigmatizing attitudes placing blame for infection; (2) child's age; and (3) characteristics of the caregiver-child relationship. Findings from the in-depth interviews on the moments before, during and after disclosure revealed that caregivers were influenced to disclose by concerns about treatment adherence, the eminent onset of adolescent sexual activity, and their desire to protect their child as well as others. Children experienced disclosure as a discrete event; although many had subsequent questions and concerns, most did not discuss them with others. In sum, disclosure to HIV-infected children is a process that can take multiple paths. Providers should work closely with caregivers to understand how communication patterns evolve, assist them in communicating with their child, and support them through full disclosure. Providers should work with HIV-infected children, before, during, and after disclosure to create opportunities for children to share experiences with each other
Efficient optimization based on local shift-invariance for adaptive SPECT systems
Adaptive SPECT systems automatically change some of their settings to maximize the image quality for a given subject and purpose. This approach has a lot of potential, and could lead to drastic improvements in performance. In particular, it would be very useful in high resolution pinhole SPECT, where the low sensitivity requires higher radiation doses or longer imaging times compared to other systems. In order to have adaptation in real-time, we need a fast method for optimizing the adaptive settings according to a given figure of merit. This is still a big challenge. Based on previous work, we address in this paper the issue of fast evaluation of image quality and optimization, for a class of adaptive SPECT systems. We evaluate the image quality in a voxel of interest, reconstructed using post- filtered MLEM, with the contrast-to-noise ratio (CNR). The CNR is computed analytically, using an approximation based on the Fisher information matrix and assuming local shift-invariance on the Fisher information matrices per adaptation parameter. We maximize the CNR with a gradient based optimization approach. We then test this method in the optimization of the angular sampling of a single-head SPECT system which rotates around a phantom. In this case, the method proved to be very efficient, and at the same time showed good agreement with previous results in literature and with the outcome from reconstructions
Enhancing clinical management of bariatric surgery using business intelligence
There is a problem with collecting information in healthcare services as it is scattered among various sources. This leads to potential impact on patient care focus. To address this issue, a Business Intelligence platform was developed and implemented at the Centre for Surgical Treatment of Obesity at Centro Hospitalar do Tâmega e Sousa. The platform developed enables knowledge extraction and aids healthcare professionals to easily access helpful information and perform better decisions, specifically in regards to the growing global concern of obesity and the increasing prevalence of bariatric surgery.This work has been supported by FCT—Fundac¸ao para a Ci ˜ encia e Tecnologia within the R&D Units Project ˆ
Scope: UIDB/00319/202
Gestão democrática : uma nova realidade nas escolas
Orientador : Guilherme Ricardo dos Santos Souza e SilvaProjeto Técnico (especialização) - Universidade Federal do Paraná, Setor de Ciências Sociais Aplicadas. Curso de Especialização em Gestão Pública MunicipalInclui referênciasResumo : O presente projeto tem como objetivo de apresentar uma proposta de implantação da gestão democrática participativa em uma escola no município de Almirante Tamandaré, a partir dos conhecimentos obtidos ao longo do curso de especialização em gestão pública municipal. Com a coletânea feita em artigos e livros, que correlacionam o tema proposto foi feita uma análise dos materiais colhidos. Percebeu-se ao término do estudo bibliográfico que a gestão democrática pode ser uma realidade dentro do ambiente escolar, proporcionando uma educação de qualidade não somente ao aluno, mais para todos os segmentos escolares, que atuante facilitará a democratização da escola. Então como forma de colocar em prática os conhecimentos adquiridos durante o curso de gestão pública municipal, se buscou um local em que se pudesse colocar e observar os conhecimentos teóricos na ótica da prática e a escolha foi por uma escola municipal rural no município de Almirante Tamandaré. Para tanto, também se realizou um levantamento dos problemas encontrados e em seguida um plano de ação a ser proposta a equipe diretiva e pedagógica a ser desenvolvida na entidade escolar
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