J-PLUS : detecting and studying extragalactic globular clusters

Context. Extragalactic globular clusters (GCs) are key objects in studies of galactic histories. The advent of wide-field surveys, such as the Javalambre Photometric Local Universe Survey (J-PLUS), offers new possibilities for the study of these systems. Aims. We performed the first study of GCs in J-PLUS to recover information on the history of NGC 1023, taking advantage of wide-field images and 12 filters. Methods. We developed the semiautomatic pipeline GCFinder for detecting GC candidates in J-PLUS images, which can also be adapted to similar surveys. We studied the stellar population properties of a sub-sample of GC candidates using spectral energy distribution (SED) fitting. Results. We found 523 GC candidates in NGC 1023, about 300 of which are new. We identified subpopulations of GC candidates, where age and metallicity distributions have multiple peaks. By comparing our results with the simulations, we report a possible broad age-metallicity relation, supporting the notion that NGC 1023 has experienced accretion events in the past. With a dominating age peak at 1010 yr, we report a correlation between masses and ages that suggests that massive GC candidates are more likely to survive the turbulent history of the host galaxy. Modeling the light of NGC 1023, we find two spiral-like arms and detect a displacement of the galaxy’s photometric center with respect to the outer isophotes and center of GC distribution (~700pc and ~1600pc, respectively), which could be the result of ongoing interactions between NGC 1023 and NGC 1023A. Conclusions. By studying the GC system of NGC 1023 with J-PLUS, we showcase the power of multi-band surveys for these kinds of studies and we find evidence to support the complex accretion history of the host galaxy

Ensino de pesquisa e criação em moda: Uma abordagem aplicada / Teaching research and creation in fashion: An applied approach

O conteúdo deste artigo apresenta experiências que estimulam o aluno a vivenciar as abordagens de pesquisa, aplicando-as paralelamente ao ensino teórico do conteúdo, havendo maior aproveitamento na aprendizagem e compreensão das etapas de pesquisa, das técnicas de compilação e análise. É a metodologia de ensino da disciplina Pesquisa e Criação em curso de Desi

Influence of estimated training status on anti and pro-oxidant activity, nitrite concentration, and blood pressure in middle-aged and older women

The purpose of this study was to compare the association between anti and pro-oxidant activity, nitrite concentration, and blood pressure (BP) in middle-aged and older women with different levels of estimated training status (TS). The sample consisted of 155 females (50-84 years) who were submitted to a physical examination to evaluate estimated TS through the "Functional Fitness Battery Test," BP measurements, and plasma blood samples to evaluate pro-oxidant and antioxidant activity and nitrite concentrations. Participants were separated by age into a middle-aged group (< 65 years) and an older (≥65 years) group and then subdivided in each group according to TS. Blood biochemistry was similar between groups. On the other hand, protein oxidation was lower in participants with higher TS, independent of age. Older females with higher TS presented higher nitrite concentrations, lower lipoperoxidation, and lower values of BP compared with those with lower TS. Lower GPx activity was observed in participants with higher TS compared with middle-aged with lower TS. Thus, our results suggest that good levels of TS may be associated with lower oxidative stress and higher nitrite concentration and may contribute to maintain normal or reduced blood pressure values.Fil: Jacomini, André M.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Dias, Danielle da Silva. Universidade Nove de Julho; BrasilFil: Brito, Janaina de Oliveira. Universidade Nove de Julho; BrasilFil: da Silva, Roberta F.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Monteiro, Henrique L.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Llesuy, Susana Francisca. Universidade Nove de Julho; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad Medicina. Instituto de Bioquímica y Medicina Molecular; ArgentinaFil: De Angelis, Kátia. Universidade Nove de Julho; BrasilFil: Amaral, Sandra L.. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Zago, Anderson S.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasi

Cardiovascular autonomic dysfunction and oxidative stress induced by fructose overload in an experimental model of hypertension and menopause

Background: Metabolic syndrome is characterized by the association of 3 or more risk factors, including: abdominal obesity associated with an excess of abdominal fat, insulin resistance, type 2 diabetes, dyslipidemia and hypertension. Moreover, the prevalence of hypertension and metabolic dysfunctions sharply increases after the menopause. However, the mechanisms involved in these changes are not well understood. Thus, the aim of this study was to assess the effects of fructose overload on cardiovascular autonomic modulation, inflammation and cardiac oxidative stress in an experimental model of hypertension and menopause. Methods: Female SHR rats were divided into (n = 8/group): hypertensive (H), hypertensive ovariectomized (HO) and hypertensive ovariectomized undergoing fructose overload (100 g/L in drinking water) (FHO). Arterial pressure (AP) signals were directly recorded. Cardiac autonomic modulation was evaluated by spectral analysis. Oxidative stress was evaluated in cardiac tissue. Results: AP was higher in the FHO group when compared to the other groups. Fructose overload promoted an increase in body and fat weight, triglyceride concentration and a reduction in insulin sensitivity. IL-10 was reduced in the FHO group when compared to the H group. TNF-α was higher in the FHO when compared to all other groups. Lipoperoxidation was higher and glutathione redox balance was reduced in the FHO group when compared to other groups, an indication of increased oxidative stress. A negative correlation was found between IL-10 and adipose tissue. Conclusion: Fructose overload promoted an impairment in cardiac autonomic modulation associated with inflammation and oxidative stress in hypertensive rats undergoing ovarian hormone deprivation.Fil: Conti, Filipe Fernandes. Universidad Nove de Julho; BrasilFil: Brito, Janaina de Oliveira. Universidad Nove de Julho; BrasilFil: Bernardes, Nathalia. Universidade de Sao Paulo; BrasilFil: Dias, Danielle da Silva. Universidad Nove de Julho; BrasilFil: Sanches, Iris Callado. Universidad Nove de Julho; BrasilFil: Malfitano, Christiane. Universidad Nove de Julho; BrasilFil: Llesuy, Susana Francisca. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; ArgentinaFil: Irigoyen, Maria-Claudia. Universidade de Sao Paulo; BrasilFil: De Angelis, Kátia. Universidad Nove de Julho; Brasi

J01020100-7122208::an accreted evolved blue straggler that wasn't ejected from a supermassive black hole

J01020100-7122208 is a star whose origin and nature still challenges us. It was first believed to be a yellow super giant ejected from the Small Magellanic Cloud, but it was more recently claimed to be a red giant accelerated by the Milky Way's central black hole. In order to unveil its nature, we analysed photometric, astrometric and high resolution spectroscopic observations to estimate the orbit, age, and 16 elemental abundances. Our results show that this star has a retrograde and highly-eccentric orbit, $e=0.914_{-0.020}^{+0.016}$. Correspondingly, it likely crossed the Galactic disk at $550\;\mathrm{pc}$ from the Galactic centre. We obtained a spectroscopic mass and age of $1.09\pm0.10$ $M_\odot$ and $4.51\pm1.44$ Gyr respectively. Its chemical composition is similar to the abundance of other retrograde halo stars. We found that the star is enriched in europium, having [Eu/Fe] = 0.93 $\pm$ 0.24, and is more metal-poor than reported in the literature, with [Fe/H] = -1.30 $\pm$ 0.10. This information was used to conclude that J01020100-7122208 is likely not a star ejected from the central black of the Milky Way or from the Small Magellanic Cloud. Instead, we propose that it is simply a halo star which was likely accreted by the Milky Way in the distant past but its mass and age suggest it is probably an evolved blue straggler.Comment: 17 pages, 9 Figures, accepted for publication in Monthly Notices of the Royal Astronomical Societ

AVALIAÇÃO MICROBIOLÓGICA E MOLECULAR DO Streptococcus equi SUBESPÉCIE equi E FATORES DE RISCO ASSOCIADOS À ADENITE EQUINA EM PROPRIEDADES RURAIS DA MICRORREGIÃO DE RIO BRANCO, ACRE, BRASIL

The objective of this study was to carry out a microbiological and molecular research of Streptococcus equi subspecies equi in the Rio Branco micro-region, Acre, Brazil, as well as to assess the risk factors. Sixty-four horses were submitted to clinical evaluation, from which nasal secretion samples were collected for bacteriological culture. The isolates were submitted to DNA extraction and PCR. The risk factors were verified through epidemiological questionnaires. It was verified that 32.8% (21/64) of the animals presented clinical signs suggestive. In the PCR, 50 (78.1%) samples were phenotypically compatible to genus, but none of them showed amplification of the 16SrRNA gene. The lack of disinfection of facilities and vaccination were the most frequent risk factors. It was concluded that Streptococcus equi subspecies equi is not present in the studied population, however, it may be susceptible to the disease due to the lack of sanitary criteria in the breeding.Keywords: Strangles; epidemiological study; Western Amazonia.Objetivou-se realizar uma pesquisa microbiológica e molecular do Streptococcus equi subesp. equi na microrregião de Rio Branco, Acre, bem como avaliar os fatores de risco. Foram submetidos à avaliação clínica 64 equinos, dos quais se colheu amostras de secreção nasal para cultivo bacteriológico. Os isolados foram encaminhados à extração de DNA e PCR. Os fatores de risco foram verificados por meio de questionários epidemiológicos. Verificou-se que 32,8% (21/64) dos animais apresentavam sinais clínicos sugestivos. Na PCR, 50 (78,1%) amostras foram compatíveis fenotipicamente ao gênero, mas nenhum destes apresentou amplificação do gene 16SrRNA. A ausência de desinfecção de instalações e vacinação foram os fatores de risco de maior frequência. Conclui-se que o Streptococcus equi subesp. equi não está presente na população estudada, porém, esta pode estar susceptível à doença, devido à falta de critérios sanitários nas criações.Palavras-chave: Garrotilho; estudo epidemiológico; Amazônia Ocidental

Delayed epistaxis secondary to intracavernous pseudoaneurysm of internal carotid artery

Post-traumatic pseudoaneurysm of the internal carotid artery is a very rare but potentially fatal cause of epistaxis. Early diagnosis is essential for an adequate management of this entity. The authors present a case of pseudoaneurysm of the internal carotid artery that developed massive epistaxis six months after skull base trauma.Pseudoaneurisma traumático da artéria carótida interna é uma causa rara de epistaxe, porém potencialmente fatal. O diagnóstico precoce é essencial para um adequado manejo da patologia. Os autores relatam um caso de pseudoaneurisma da carótida interna que se apresentou como epistaxe maciça após seis meses de trauma craniano prévio.Hospital do Servidor Público do Estado de São Paulo Serviço de Otorrinolaringologia/Cabeça e PescoçoUniversidade Federal de São Paulo (UNIFESP) Escola Paulista de MedicinaUNIFESP, EPMSciEL

PROTOCOLO DE MANCHESTER E POPULAÇÃO USUÁRIA NA CLASSIFICAÇÃO DE RISCO: VISÃO DO ENFERMEIRO

Objetivo: Compreender a visão do enfermeiro sobre a utilização do protocolo de Manchester e a população usuária na classificação de risco de uma Unidade de Pronto Atendimento (UPA). Método: Estudo de caso qualitativo fundamentado na Sociologia Compreensiva do Cotidiano; utilizou-se a entrevista aberta com 12 enfermeiros que realizam a classificação de risco. Resultados: Há uma inversão de fluxo de usuários entre a rede básica e os serviços de urgência/emergência o que resulta em superlotação da UPA e sobrecarga de trabalho, advinda da falta de informação e comunicação eficaz do Sistema de Saúde (público-privado) para que os usuários conheçam a real função de um atendimento de urgência/emergência, e das fragilidades na gestão da UPA. Conclusão: Apesar dos desafios para concretização da classificação de risco como uma estratégia acolhedora e equânime das demandas, o protocolo de Manchester trouxe segurança para a prática e qualidade da atenção prestada.Descritores: Classificação; Urgência; Emergência; Enfermagem; Acolhimento

Ação da toxina botulínica na Disfunção Temporomandibular Muscular

Objetivo: Realizar uma revisão narrativa, tendo como base artigos científicos sobre a relação da toxina botulínica no auxílio do tratamento da disfunção temporomandibular muscular. Revisão Bibliográfica: A toxina botulínica é um procedimento não-invasivo, de resultado rápido, em relação a tratamentos invasivos, tem composição segura, apresenta bons prognósticos e tem embasamento científico ao ser utilizada na área odontológica como tratamento funcional e estético, destaque para a área da disfunção temporomandibular. Considerações finais: Evidencia-se cada vez mais na literatura científica, a efetividade da toxina botulínica diante do seu efeito benéfico em casos de disfunção temporomandibular (DTM). Dessa forma, o tratamento pode ser executado de maneira multidisciplinar ou complementar em hipertensões musculares, melhorando um quadro de dor muscular. Com isso, estudos científicos confirmam sua ação sobre o tecido referido mastigatório, promovendo a diminuição de desordens musculares