3,425 research outputs found
Gestão intersetorial de Serviços Sociais
Anais do 35º Seminário de Extensão Universitária da Região Sul - Área temática: TrabalhoEste programa foi criado, já em 2010, visando contribuir com a
coordenação de esforços entre os setores públicos e privados, além da comunidade
organizada (terceiro setor), visto que esses se envolvem em questões de interesse
comum. O programa é composto por quatro projetos, a saber: Projeto 1 - Formação
para gestão estratégica e a nova governança pública, que tem como objetivo formar
equipes diretivas para a governança, aplicando um modelo de GRD, trata-se de
oficinas, palestras e visitas in loco. Projeto 2 - Transparência contábil em entidades
do terceiro setor, com o objetivo de orientar e auxiliar os gestores em suas rotinas
administrativas, trabalhistas, financeiras e contábeis, visando à prestação de contas
dos recursos recebidos. Para tanto, desenvolve-se oficinas, palestras e visitas in
loco. Projeto 3 - Seminário de gestão intersetorial de serviços sociais, o papel dos
setores nas políticas sociais, o qual voltado para discutir as questões relacionadas à
gestão intersetorial e comunitária. Projeto 4 - Capacitação de gestores, voluntários e
profissionais da contabilidade. Este projeto visa capacitar profissionais e voluntários,
por meio de oficinas e palestra
The dynamic exponent of the Ising model on negatively curved surfaces
We investigate the dynamic critical exponent of the two-dimensional Ising
model defined on a curved surface with constant negative curvature. By using
the short-time relaxation method, we find a quantitative alteration of the
dynamic exponent from the known value for the planar Ising model. This
phenomenon is attributed to the fact that the Ising lattices embedded on
negatively curved surfaces act as ones in infinite dimensions, thus yielding
the dynamic exponent deduced from mean field theory. We further demonstrate
that the static critical exponent for the correlation length exhibits the mean
field exponent, which agrees with the existing results obtained from canonical
Monte Carlo simulations.Comment: 14 pages, 3 figures. to appear in J. Stat. Mec
Enhancement of CD4+ T Cell Function as a Strategy for Improving Antibiotic Therapy Efficacy in Tuberculosis: Does It Work?
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb) remains a major public health problem worldwide due in part to the lack of an effective vaccine and to the lengthy course of antibiotic treatment required for successful cure. Combined immuno/chemotherapeutic intervention represents a major strategy for developing more effective therapies against this important pathogen. Because of the major role of CD4+ T cells in containing Mtb infection, augmentation of bacterial specific CD4+ T cell responses has been considered as an approach in achieving this aim. Here we present new data from our own research aimed at determining whether boosting CD4+ T cell responses can promote antibiotic clearance. In these studies, we first characterized the impact of antibiotic treatment of infected mice on Th1 responses to major Mtb antigens and then performed experiments aimed at sustaining CD4+ T cell responsiveness during antibiotic treatment. These included IL-12 infusion, immunization with ESAT-6 and Ag85B immunodominant peptides and adoptive transfer of Th1-polarized CD4+ T cells specific for ESAT-6 or Ag85B during the initial month of chemotherapy. These approaches failed to enhance antibiotic clearance of Mtb, indicating that boosting Th1 responses to immunogenic Mtb antigens highly expressed by actively dividing bacteria is not an effective strategy to be used in the initial phase of antibiotic treatment, perhaps because replicating organisms are the first to be eliminated by the drugs. These results are discussed in the context of previously published findings addressing this concept along with possible alternate approaches for harnessing Th1 immunity as an adjunct to chemotherapy
Assessment of ventilation rates inside educational buildings in Southwestern Europe: Analysis of implemented strategic measures
The pandemic caused by COVID-19 has highlighted the need to ensure good indoor air quality. Public buildings (educational buildings in particular) have come under the spotlight because students, teachers and staff spend long periods of the day indoors. This study presents a measurement campaign for the assessment of ventilation rate (VR) and ventilation strategies in educational buildings in Southwestern Europe, Portugal and Spain. A representative sample of the teaching spaces of the Azurém Campus (Guimarães, Portugal) and the Fuentenueva Campus (Granada, Spain) have been analyzed. Natural ventilation is the predominant ventilation strategy in these spaces, being the most common strategy in educational buildings in Europe. VR was estimated under different configurations, using the CO2 decay method. Subsequently, the CO2 concentration was estimated according to occupancy and the probability of infection risk was calculated using the Wells-Riley equation. The obtained VR varied between 2.9 and 20.1 air change per hour (ACH) for natural cross ventilation, 2.0 to 5.1 ACH for single-sided ventilation and 1.8 to 3.5 for mechanically ventilated classrooms. Large differences in CO2 concentrations were verified, depending on the analyzed ventilation strategy, ranging from 475 to 3903 ppm for the different scenarios. However, the probability of risk was less than 1% in almost all of the classrooms analyzed. The results obtained from the measurement campaign showed that the selection of an appropriate ventilation strategy can provide sufficient air renewal and maintain a low risk of infection. Ventilation strategies need to be reconsidered as a consequence of the health emergency arising from the COVID-19 pandemic.Antonio J. Aguilar Aguilera and María Luisa de la Hoz Torres wish to thank the support of the Ministerio de Ciencia, Innovación y Universidades of Spain under an FPU grant. This work has been supported by the Consejo General de la Arquitectura T´ecnica (CGATE), the “Junta de Andalucía” (Spain) under project B-TEP-362-UGR18 and the State Research Agency (SRA) of Spain and European Regional Development Funds (ERDF) under project PID2019-108761RB-I00. Funding for open access charge: Universidad de Granada / CBUA
Reopening higher education buildings in post-epidemic COVID-19 scenario: monitoring and assessment of indoor environmental quality after implementing ventilation protocols in Spain and Portugal
Post-epidemic protocols have been implemented in public buildings to keep indoor environments safe. However, indoor environmental conditions are affected by this decision, which also affect the occupants of buildings. This fact has major implications in educational buildings, where the satisfaction and learning performance of students may also be affected. This study investigates the impact of post-epidemic protocols on indoor environmental conditions in higher education buildings of one Portuguese and one Spanish university. A sensor monitoring campaign combined with a simultaneous questionnaire was conducted during the reopening of the educational buildings. Results showed that although renewal air protocols were effective and the mean CO2 concentration levels remained low (742 ppm and 519 ppm in Portugal and Spain universities, respectively), students were dissatisfied with the current indoor environmental conditions. Significant differences were also found between the responses of Portuguese and Spanish students. Indeed, Spanish students showed warmer preferences (thermal neutrality = 23.3℃) than Portuguese students (thermal neutrality = 20.7℃). In terms of involved indoor factors, the obtained data showed significant correlations (p < 0.001) between acoustic factors and overall satisfaction in the Portuguese students (ρ = 0.540) and between thermal factors and overall satisfaction in the Spanish students (ρ = 0.522). Therefore, indoor environmental conditions should be improved by keeping spaces safe while minimizing the impact of post-epidemic protocols on student learning performance.The first two authors wish to thank the support of the Ministerio de Ciencia, Innovación y Universidades of Spain, under an FPU grant. This research was funded by the Consejo General de la Arquitectura Técnica (CGATE), and the State Research Agency (AEI) of Spain and European Regional Development Funds (ERDF) under project PID2019-108761RB-I00. Funding for open access charge: Universidad de Granada/CBUA
Accurate Atmospheric Parameters at Moderate Resolution Using Spectral Indices: Preliminary Application to the MARVELS Survey
Studies of Galactic chemical and dynamical evolution in the solar
neighborhood depend on the availability of precise atmospheric parameters
(Teff, [Fe/H] and log g) for solar-type stars. Many large-scale spectroscopic
surveys operate at low to moderate spectral resolution for efficiency in
observing large samples, which makes the stellar characterization difficult due
to the high degree of blending of spectral features. While most surveys use
spectral synthesis, in this work we employ an alternative method based on
spectral indices to determine the atmospheric parameters of a sample of nearby
FGK dwarfs and subgiants observed by the MARVELS survey at moderate resolving
power (R~12,000). We have developed three codes to automatically normalize the
observed spectra, measure the equivalent widths of the indices and, through the
comparison of those with values calculated with pre-determined calibrations,
derive the atmospheric parameters of the stars. The calibrations were built
using a sample of 309 stars with precise stellar parameters obtained from the
analysis of high-resolution FEROS spectra. A validation test of the method was
conducted with a sample of 30 MARVELS targets that also have reliable
atmospheric parameters from high-resolution spectroscopic analysis. Our
approach was able to recover the parameters within 80 K for Teff, 0.05 dex for
[Fe/H] and 0.15 dex for log g, values that are lower or equal to the typical
external uncertainties found between different high-resolution analyzes. An
additional test was performed with a subsample of 138 stars from the ELODIE
stellar library and the literature atmospheric parameters were recovered within
125 K for Teff, 0.10 dex for [Fe/H] and 0.29 dex for log g. These results show
that the spectral indices are a competitive tool to characterize stars with the
intermediate resolution spectra.Comment: Accepted for publication in AJ. Abstract edited to comply with arXiv
standards regarding the number of character
Community structure of shallow rocky shore fish in a tropical bay of the southwestern Atlantic
Os costões rochosos do Atlântico Sul Ocidental sustentam ricas comunidades de peixes recifais. Apesar disso, o conhecimento sobre essas comunidades em zonas tropicais continua escasso, especialmente no Brasil. No presente trabalho avaliamos parâmetros das comunidades de peixes recifais, tais como composição e estrutura trófica, além de sua interação com variáveis físicas e bióticas, em quatro costões rochosos tropicais na Baía de Todos os Santos, costa leste do Brasil. Durante seis meses 80 censos visuais foram realizados, nos quais 3.582 peixes pertencentes a 76 espécies foram registrados. Os peixes herbívoros territoriais e as algas filamentosas dominaram em todos os costões. A variação espacial na estrutura da comunidade de peixes esteve relacionada com a composição bêntica e profundidade. A elevada abundância observada de peixes herbívoros territoriais e invertívoros móveis pode ser devido à alta cobertura de algas filamentosas e à baixa profundidade e exposição às ondas. Além disso, esse padrão também pode ser explicado pela baixa densidade de herbívoros errantes e grandes carnívoros, provavelmente devido à intensa pressão da atividade pesqueira. Assim, novos estudos são necessários para avaliar o real estado de conservação destes ambientes, uma vez que estão localizados em posição singular na Baía de Todos os Santos, conectando recifes internos e externos da área.Southwestern Atlantic Ocean rocky shores sustain important reef fish communities. However, those communities in tropical regions are not well understood, especially in Brazil. In this present article we assess community parameters of reef fishes such as composition, trophic organization and their relationships with physical and biological factors on four tropical rocky shores in Todos os Santos Bay, southwestern Atlantic. During six months, a total of 80 visual censuses were performed, in which 3,582 fish belonging to 76 species were recorded. Territorial herbivorous fish and turf algae were dominant at all the sites. The spatial variability of fish community structure was related to the benthic cover composition and depth. The high abundance of territorial herbivores and mobile invertebrate feeders could be associated with high levels of turf cover, low wave exposure and shallow waters. Moreover, this fact could be a consequence of the low density of roving herbivores and large carnivores probably due to the pressure of intense fishing activity. Thus complementary studies are needed to evaluate the actual conservation status of these rocky shore reefs, singularly located habitats connecting inner and outer reefs in Todos os Santos Bay
Durabilidade do betão auto-compactável de elevado desempenho face ao ataque químico
A aplicação do betão na construção civil continua sendo intensa e, tendo em vista a existência de impacto sustentável negativo deste material, o desenvolvimento e o conhecimento de novos tipos que minimizem tais ações é imperativo face às novas preocupações mundiais no contexto da sustentabilidade. Surge então o betão autocompactável de elevado desempenho como uma possibilidade viável em termos de comportamentos técnico, ambiental, social e econômico. No entanto, algumas preocupações de cunho patológico surgem e o conhecimento acerca da durabilidade do material se faz necessário. Este trabalho, portanto, visa ao entendimento do comportamento dessa nova tipologia de material cimentício mediante a ação de três agentes químicos específicos: os cloretos, os sulfatos e o dióxido de carbono, com o intuito de avaliar as alterações de desempenho a partir de mudanças na dosagem de cimento e de variações de temperatura nos primeiros dias de cura do betão para o ataque de sulfatos. Do ponto de vista deste, avaliase com maior ênfase a formação da etringita secundária (DEF), composto expansivo que pode comprometer consideravelmente as condições de serviço do elemento de construção. Os
estudos experimentais decorrem da investigação de três composições distintas, uma de referência convencional com dosagem de cimento de 400 kg/m³ (BC_400) e duas caracterizadas como auto compactáveis de elevado desempenho, sendo uma com dosagem do ligante de 500 kg/m³ (BACED_500) e outra de 600 kg/m³ (BACED_600). As condições de cura foram também variadas entre as 24h e 48h de vida do material, submetendo os provetes a temperaturas de 20ºC, 50 ºC e 80ºC. Os resultados apontam que os BACED em estudo confirmam a auto-compactibilidade e o elevado desempenho. Para o ensaio de cloretos, o BACED_600 apresentou menor difusão dos íons, seguido pelo BACED_500 e o BC_400. Em
termos do ensaio de sulfatos, na indicação de DEF há considerável transformação da etringita primária em monossulfato, sendo o BC_400 e o BACED_600 os que apresentaram maior suscetibilidade à formação do composto tardio devido à temperatura de cura; no ataque por fonte externa de sulfatos, os BACED indicaram perda de massa similar, abaixo do BC_400. Em termos de carbonatação, o BACED_500 é mais suscetível que o BACED_600.info:eu-repo/semantics/publishedVersio
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