The SDSS Coadd: Cross-Correlation Weak Lensing and Tomography of Galaxy Clusters

The shapes of distant galaxies are sheared by intervening galaxy clusters. We examine this effect in Stripe 82, a 275 square degree region observed multiple times in the Sloan Digital Sky Survey and coadded to achieve greater depth. We obtain a mass-richness calibration that is similar to other SDSS analyses, demonstrating that the coaddition process did not adversely affect the lensing signal. We also propose a new parameterization of the effect of tomography on the cluster lensing signal which does not require binning in redshift, and we show that using this parameterization we can detect tomography for stacked clusters at varying redshifts. Finally, due to the sensitivity of the tomographic detection to accurately marginalizing over the effect of the cluster mass, we show that tomography at low redshift (where dependence on exact cosmological models is weak) can be used to constrain mass profiles in clusters.Comment: 8 pages, 13 figures, submitted to ApJ. Analysis updated using revised photo-z catalog of Reis et al. arXiv:1111.6620v2. Changes in results are within the errors and the conclusions are unaffecte

Weak-lensing calibration of a stellar mass-based mass proxy for redMaPPer and Voronoi Tessellation clusters in SDSS Stripe 82

We present the first weak lensing calibration of $\mu_{\star}$, a new galaxy cluster mass proxy corresponding to the total stellar mass of red and blue members, in two cluster samples selected from the SDSS Stripe 82 data: 230 redMaPPer clusters at redshift $0.1\leq z<0.33$ and 136 Voronoi Tessellation (VT) clusters at $0.1 \leq z < 0.6$. We use the CS82 shear catalog and stack the clusters in $\mu_{\star}$ bins to measure a mass-observable power law relation. For redMaPPer clusters we obtain $M_0 = (1.77 \pm 0.36) \times 10^{14}h^{-1} M_{\odot}$, $\alpha = 1.74 \pm 0.62$. For VT clusters, we find $M_0 = (4.31 \pm 0.89) \times 10^{14}h^{-1} M_{\odot}$, $\alpha = 0.59 \pm 0.54$ and $M_0 = (3.67 \pm 0.56) \times 10^{14}h^{-1} M_{\odot}$, $\alpha = 0.68 \pm 0.49$ for a low and a high redshift bin, respectively. Our results are consistent, internally and with the literature, indicating that our method can be applied to any cluster finding algorithm. In particular, we recommend that $\mu_{\star}$ be used as the mass proxy for VT clusters. Catalogs including $\mu_{\star}$ measurements will enable its use in studies of galaxy evolution in clusters and cluster cosmology.Comment: Updated to be consistent with the published versio

Cosmology with Gravitational Waves in des and LSST

Motivated by the prospect of the wealth of data arising from the inauguration of the era of gravitational wave detection by ground-based interferometers the DES collaboration, in partnership with members of the LIGO collaboration and members of the astronomical community at large, have established a research program to search for their optical counterparts and to explore their use as cosmological probes. In this talk we present the status of our program and discuss prospects for establishing this new probe as part of the portfolio of the Dark Energy research program in the future, in particular for the next generation survey, LSST

The SDSS Coadd: A Galaxy Photometric Redshift Catalog

We present and describe a catalog of galaxy photometric redshifts (photo-z's) for the Sloan Digital Sky Survey (SDSS) Coadd Data. We use the Artificial Neural Network (ANN) technique to calculate photo-z's and the Nearest Neighbor Error (NNE) method to estimate photo-z errors for $\sim$ 13 million objects classified as galaxies in the coadd with $r < 24.5$. The photo-z and photo-z error estimators are trained and validated on a sample of $\sim 83,000$ galaxies that have SDSS photometry and spectroscopic redshifts measured by the SDSS Data Release 7 (DR7), the Canadian Network for Observational Cosmology Field Galaxy Survey (CNOC2), the Deep Extragalactic Evolutionary Probe Data Release 3(DEEP2 DR3), the VIsible imaging Multi-Object Spectrograph - Very Large Telescope Deep Survey (VVDS) and the WiggleZ Dark Energy Survey. For the best ANN methods we have tried, we find that 68% of the galaxies in the validation set have a photo-z error smaller than $\sigma_{68} =0.031$. After presenting our results and quality tests, we provide a short guide for users accessing the public data.Comment: 16 pages, 13 figures, submitted to ApJ. Analysis updated to remove proprietary BOSS data comprising small fraction (8%) of original spectroscopic training set and erroneously included. Changes in results are small compared to the errors and the conclusions are unaffected. arXiv admin note: substantial text overlap with arXiv:0708.003

Multi-Messenger Astronomy with Extremely Large Telescopes

The field of time-domain astrophysics has entered the era of Multi-messenger Astronomy (MMA). One key science goal for the next decade (and beyond) will be to characterize gravitational wave (GW) and neutrino sources using the next generation of Extremely Large Telescopes (ELTs). These studies will have a broad impact across astrophysics, informing our knowledge of the production and enrichment history of the heaviest chemical elements, constrain the dense matter equation of state, provide independent constraints on cosmology, increase our understanding of particle acceleration in shocks and jets, and study the lives of black holes in the universe. Future GW detectors will greatly improve their sensitivity during the coming decade, as will near-infrared telescopes capable of independently finding kilonovae from neutron star mergers. However, the electromagnetic counterparts to high-frequency (LIGO/Virgo band) GW sources will be distant and faint and thus demand ELT capabilities for characterization. ELTs will be important and necessary contributors to an advanced and complete multi-messenger network.Comment: White paper submitted to the Astro2020 Decadal Surve

Prevalência da Síndrome de Burnout entre trabalhadores hidroviários [Prevalence of Burnout Syndrome among waterway workers] [Prevalencia de la Síndrome de Burnout entre trabajadores por vía navegable]

Objetivo: descrever a prevalência da suspeição de Síndrome de Burnout entre os trabalhadores, analisando possíveis fatores associados. Método: estudo observacional transversal. Os participantes da pesquisa foram 430 funcionários de empresa de transporte hidroviário, no Estado do Rio de Janeiro. O maslach burnout inventory foi utilizado para a avaliação do Burnout tendo sua prevalência observada, segundo critérios de Grunfeld e colaboradores. A pesquisa foi aprovada pelo Comitê de Ética em Pesquisa do Hospital Universitário Antônio Pedro, CAAE55109216.4.0000.5240. Resultados: a prevalência de suspeição de Síndrome de Burnout foi observada em 336 (78,1%), valor expressivo. Conclusão: pôde-se constatar que a síndrome se apresenta como possível complicação, relacionada à organização do trabalho, que independente de diversas variáveis investigadas, demonstrou-se presente.ABSTRACTObjective: to describe the prevalence of suspected Burnout Syndrome among workers, and to analyze possible associated factors. Method: the subjects of this cross-sectional observational study were 430 employees of a water transport company in Rio de Janeiro state. Burnout was identified using the Maslach Burnout Inventory, and its prevalence measured on the criteria of Grunfeld et al. The study was approved by the Antônio Pedro University Hospital research ethics committee (CAAE55109216.4.0000.5240). Results: suspected Burnout Syndrome was observed in 336 workers (78.1% prevalence), which is a considerable value. Conclusion: the syndrome was observed to present as a possible complication of work organization, independently of several study variables present.RESUMENObjetivo: describir la prevalencia de sospecha de Síndrome de Burnout entre los trabajadores, el analizando posibles factores asociados. Método: estudio transversal observacional. Los participantes de la investigación fueron 430 empleados de la empresa de transporte por vía navegable, en el estado de Río de Janeiro. Se utilizó el Maslach Burnout Inventory para la evaluación de Burnout, y su prevalencia fue observada de acuerdo con los criterios de Grunfeld y cols. La investigación fue aprobada por el Comité de Ética en Investigación del Hospital Universitario Antônio Pedro, CAAE55109216.4.0000.5240. Resultados: se observó la prevalencia de sospecha de Síndrome de Burnout en 336 (78,1%), valor expresivo. Conclusión: se pudo observar que el síndrome se presenta como posible complicación relacionada con la organización del trabajo que, independiente de diversas variables investigadas, demostró estar presente.Objective: to describe the prevalence of suspected Burnout Syndrome among workers, and to analyze possible associated factors. Method: the subjects of this cross-sectional observational study were 430 employees of a water transport company in Rio de Janeiro state. Burnout was identified using the Maslach Burnout Inventory, and its prevalence measured on the criteria of Grunfeld et al. The study was approved by the Antônio Pedro University Hospital research ethics committee (CAAE55109216.4.0000.5240). Results: suspected Burnout Syndrome was observed in 336 workers (78.1% prevalence), which is a considerable value. Conclusion: the syndrome was observed to present as a possible complication of work organization, independently of several study variables present.RESUMOObjetivo: descrever a prevalência da suspeição de Síndrome de Burnout entre os trabalhadores, analisando possíveis fatores associados. Método: estudo observacional transversal. Os participantes da pesquisa foram 430 funcionários de empresa de transporte hidroviário, no Estado do Rio de Janeiro. O maslach burnout inventory foi utilizado para a avaliação do Burnout tendo sua prevalência observada, segundo critérios de Grunfeld e colaboradores. A pesquisa foi aprovada pelo Comitê de Ética em Pesquisa do Hospital Universitário Antônio Pedro, CAAE55109216.4.0000.5240. Resultados: a prevalência de suspeição de Síndrome de Burnout foi observada em 336 (78,1%), valor expressivo. Conclusão: pôde-se constatar que a síndrome se apresenta como possível complicação, relacionada à organização do trabalho, que independente de diversas variáveis investigadas, demonstrou-se presente.RESUMENObjetivo: describir la prevalencia de sospecha de Síndrome de Burnout entre los trabajadores, el analizando posibles factores asociados. Método: estudio transversal observacional. Los participantes de la investigación fueron 430 empleados de la empresa de transporte por vía navegable, en el estado de Río de Janeiro. Se utilizó el Maslach Burnout Inventory para la evaluación de Burnout, y su prevalencia fue observada de acuerdo con los criterios de Grunfeld y cols. La investigación fue aprobada por el Comité de Ética en Investigación del Hospital Universitario Antônio Pedro, CAAE55109216.4.0000.5240. Resultados: se observó la prevalencia de sospecha de Síndrome de Burnout en 336 (78,1%), valor expresivo. Conclusión: se pudo observar que el síndrome se presenta como posible complicación relacionada con la organización del trabajo que, independiente de diversas variables investigadas, demostró estar presente

A LITERATURE REVIEW ON THE INCLUSION OF STUDENTS WITH DISABILITIES IN THE 1990S AND 2000S IN MANAUS

This article aims to analyze the social inclusion of disabled students in basic education in Manaus. Faced with historical and deterministic facts, disabled individuals were deprived of inclusion and lived on the margins of society, considered cursed and victims of cruel acts throughout history. These events contributed to social exclusion in contemporary times. According to these facts, education with social inclusion of people with disabilities would result in a fairer and more egalitarian society. However, this inclusion is still a challenge for the present day. This social research, theoretically grounded by the studies of various authors such as BARBIER (1998), CORDEIRO (2016), DINIZ (2007), FRANCO (2012), MARQUES (2010), MINAYO (2010), ORRÚ (2014), and SANTOS (2011), used the qualitative dialectical method. Procedures consisted of bibliographic and documentary research for data collection. The significant increase in the number of students with disabilities in schools and the challenge of social inclusion, as envisioned since the 1988 constitution and more recently by Law 13.146/2015, is noteworthy. The research analyzed the process of social inclusion from the 1990s to the present day, considering the implementation of laws and the school reality. When analyzing the school social reality, it is observed that Manaus has the highest number of disabled students outside school, as indicated by the 2nd cycle of Monitoring the goals of the National Education Plan (PNE) in 2018. School exclusion is a present and determining factor in the lives of these students in the Amazonian capital, potentially leading to both school and social exclusion in many cases. Despite national laws mandating the inclusion of these students, there are gaps in public schools in Manaus, such as the lack of suitable infrastructure and qualified teachers, along with a segregative view contributing to social exclusion. Therefore, it becomes necessary to promote new discussions on the subject and debates about the social inclusion of these students in Manaus

Caracterização física, química e sensorial de um salgado hiperproteico consumido por atletas e praticantes de atividade física

Como uma alternativa aos suplementos proteicos, muitos atletas e praticantes de atividade física têm consumido um salgado que tem sido amplamente divulgado através de redes sociais na internet. A versão mais popular do salgado tem sido a de massa elaborada com carne de peito de frango e couve-flor. Porém, a relação entre carne de frango e couve-flor tem variado e até o presente momento nenhum estudo foi desenvolvido para caracterização desse salgado. Assim, o objetivo do presente trabalho foi avaliar física, química e sensorialmente formulações (F) do salgado elaboradas com diferentes percentuais de couve-flor (F1 - 33% e F2 - 47%). Na avaliação física, foram determinados os valores médios de peso, volume aparente, volume específico e fator térmico. A composição química das amostras procedeu-se de acordo com os métodos oficiais. O pH, acidez titulável e valor energético também foram determinados. Na análise sensorial, 50 provadores não treinados, de ambos os sexos, realizaram em prova aberta o teste sensorial afetivo de escala hedônica de 9 pontos. A aceitabilidade das amostras foi avaliada quanto ao aspecto geral e atributos cor, aroma, sabor e textura. Os resultados obtidos mostraram que a relação entre carne de frango e couve-flor levou a uma diminuição significativa no peso da formulação F2 antes e após a cocção, bem como no volume aparente e fator térmico. O teor de proteínas da formulação F2 também foi significativamente mais baixo. Contudo, na avaliação sensorial, ambas as formulações obtiveram índice de aceitabilidade acima de 70% para todos os atributos sensoriais avaliados. ABSTRACTPhysical, Chemical and Sensory Characterization of a Hyperproteic Snack Eaten by Athletes and Physical Activity PractitionersAs an alternative to protein supplements, athletes and physical activity practitioners have consumed a snack that has been widely disseminated through social networks on the internet.  Its most popular version has been that of dough produced with chicken breast and cauliflower. However, the relation between both ingredients has varied and so far no study has been developed to characterize this snack. The aim of this study was to evaluate physical, chemical and sensorial two formulations (F) of the snack (F1 - 33% e F2 - 47%). On the physical evaluation, the mean values of weight, apparent volume, specific volume and thermal factor were determined. The chemical composition of the samples was carried out in accordance with the official methods. The values of pH, titratable acidity and energy were also determined. In the sensory evaluation, 50 untrained panelist, of both sexes, held in an open assay the affective sensory test of a nine-point hedonic scale ranging from 1 = dislike extremely to 9 = like extremely. The acceptability of the samples was evaluated for general appearance and the attributes color, aroma, flavor and texture. The results obtained showed that the relation between chicken meat and cauliflower led to a significant decrease in the weight of the formulation F2 before and after cooking, as well as in the apparent volume and heat factor. The protein content of formulation F2 was also significantly lower. However, in the sensory evaluation, both formulations showed acceptability index above 70% for all sensory attributes evaluated

Photometry, Centroid and Point-Spread Function Measurements in the LSST Camera Focal Plane Using Artificial Stars

The Vera C. Rubin Observatory's LSST Camera pixel response has been characterized using laboratory measurements with a grid of artificial stars. We quantify the contributions to photometry, centroid, point-spread function size, and shape measurement errors due to small anomalies in the LSSTCam CCDs. The main sources of those anomalies are quantum efficiency variations and pixel area variations induced by the amplifier segmentation boundaries and "tree-rings" -- circular variations in silicon doping concentration. We studied the effects using artificial stars projected on the sensors and find that the resulting measurement uncertainties pass the ten-year LSST survey science requirements. In addition, we verify that the tree-ring effects can be corrected using flat-field images if needed, because the astronomic shifts and shape measurement errors they induce correlate well with the flat-field signal. Nevertheless, further sensor anomaly studies with on-sky data should probe possible temporal and wavelength-dependent effects.Comment: Submitted to PAS