O PERFIL DOS USUÁRIOS CADASTRADOS NA ASSOCIAÇÃO PARANAENSE DE OSTOMIZADOS – APO

Este es un estudio cuantitativo realizado en el periodo de septiembre de 2005 a enero de 2006. El objetivo fue caracterizar los portadores de ostomias, con catastro en la Asociación Paranaense de los Ostomizados (APO). Fueron analizados 1538 prontuarios de la APO y de estes fueron elejidos 477 con datos completos. En relacón al sexo, 53,7% dos “ostomizados” eran del masculino y 46,3% del femenino. Cuanto al motivo de la intervención quirúrgica, en la franja etaria de 0 a 45 años, el estudio apunta para las causas externas como una implicación para la realización de las ostomias, lo que representa 20% del total de intervenciones realizadas. Sin embargo en la franja etaria de más de 45 años, 51,4% de esta población era del sexo femenino, siendo las neoplasias intestinales responsables por la concretización de aproximadamente 51% de las ostomías. Las colostomías representam 65,4% de los procedimientos realizados. Se recomienda continuación del estudio a fin de contribuir en la identificación de las necesidades educativas de la clientela.Trata-se de um estudo quantitativo realizado no período de setembro de 2005 a janeiro de 2006. O objetivo foi caracterizar os portadores de ostomias, cadastrados na Associação Paranaense dos Ostomizados (APO). Foram analisados 1538 prontuários da APO e destes foram selecionados 477 com dados completos. Em relação ao sexo, 53,7% dos ostomizados eram do sexo masculino e 46,3% do feminino. Quanto ao motivo da intervenção cirúrgica, na faixa etária de 0 a 45 anos, o estudo aponta para as causas externas como uma implicação para a realização das ostomias, representando 20% do total de intervenções realizadas. Entretanto na faixa etária acima de 45 anos, 51,4% desta população eram do sexo feminino, sendo que, as neoplasias intestinais foram responsáveis pela concretização de aproximadamente 51% das ostomias.As colostomias representam 65,4% dos procedimentos realizados. Recomendase a continuação do estudo com intuito de contribuir na identificação das necessidades educativas da clientela.It is a quantitative study performed from September/2005 to January/2006. The objective was to characterize the ostomates registered at the Ostomate Association of Paraná State (APO in Portuguese). From 1538 analyzed forms, 477 were selected with complete data. According to sex, 53.7% of the ostomates were male, and 46.3% were female; from 0 to 45 years old, there was predominance of male patients, 63.9%. As for the reasons of the surgical procedure, at the age of 0 to 45 years old, the study points out external causes as an implication for the ostomy procedure, standing for 20% of the total surgeries. However, at ages above 45 years old, 51.4% of the population was female, and intestinal neoplasm was responsible for about 51% of the ostomies. Colostomies accounted for 65.4% of the procedures. It is suggested the study continuation in order to contribute for the identification of ostomates’ educational needs

Extraction of the Muon Signals Recorded with the Surface Detector of the Pierre Auger Observatory Using Recurrent Neural Networks

We present a method based on the use of Recurrent Neural Networks to extract the muon component from the time traces registered with water-Cherenkov detector (WCD) stations of the Surface Detector of the Pierre Auger Observatory. The design of the WCDs does not allow to separate the contribution of muons to the time traces obtained from the WCDs from those of photons, electrons and positrons for all events. Separating the muon and electromagnetic components is crucial for the determination of the nature of the primary cosmic rays and properties of the hadronic interactions at ultra-high energies. We trained a neural network to extract the muon and the electromagnetic components from the WCD traces using a large set of simulated air showers, with around 450 000 simulated events. For training and evaluating the performance of the neural network, simulated events with energies between 1018.5, eV and 1020 eV and zenith angles below 60 degrees were used. We also study the performance of this method on experimental data of the Pierre Auger Observatory and show that our predicted muon lateral distributions agree with the parameterizations obtained by the AGASA collaboration

A search for ultra-high-energy photons at the Pierre Auger Observatory exploiting air-shower universality

The Pierre Auger Observatory is the most sensitive detector to primary photons with energies above ∼0.2 EeV. It measures extensive air showers using a hybrid technique that combines a fluorescence detector (FD) with a ground array of particle detectors (SD). The signatures of a photon-induced air shower are a larger atmospheric depth at the shower maximum (X$_{max}$) and a steeper lateral distribution function, along with a lower number of muons with respect to the bulk of hadron-induced background. Using observables measured by the FD and SD, three photon searches in different energy bands are performed. In particular, between threshold energies of 1-10 EeV, a new analysis technique has been developed by combining the FD-based measurement of X$_{max}$ with the SD signal through a parameter related to its muon content, derived from the universality of the air showers. This technique has led to a better photon/hadron separation and, consequently, to a higher search sensitivity, resulting in a tighter upper limit than before. The outcome of this new analysis is presented here, along with previous results in the energy ranges below 1 EeV and above 10 EeV. From the data collected by the Pierre Auger Observatory in about 15 years of operation, the most stringent constraints on the fraction of photons in the cosmic flux are set over almost three decades in energy