This paper presents a method to perform a location recommendation based on multiple criteria allowing noised coordinates. More specifi cally, the skyline query is adapted to handle those noises by modeling the errors of georeferenced points with an appropriate probability distribution and modifying the traditional dominance criterion used by that technique. The method is applied to a scenario in which the coordinates are set by a geocoding process in a sample of schools in a specifi c Brazilian city. It enables one to choose the level of confi dence in which a point is removed from the skyline solution (the location recommendation).

Este trabalho tem por objetivo analisar os contratos de concessão de praças de pedágio existentes no Estado do Rio Grande do Sul no período de 1998 até 2012, utilizando as informações obtidas do Relatório de Acompanhamento do Programa Estadual de Concessão Rodoviária do Rio Grande do Sul (PECR-RS). Para atingir tal meta, emprega-se o modelo de simulação proposto por Ng et al. (2007), o qual utiliza o procedimento de simulação de Monte Carlo, que permite inserir as informações contratuais, de modo a visualizar um possível comportamento das empresas durante a execução dos mesmos. Em suma, os resultados encontrados indicam que, para as praças analisadas com a taxa interna de retorno sendo aquela considerada no projeto básico de exploração, o tempo ótimo simulado foi igual ou menor do que aquele acordado contratualmente. Deve-se destacar que os contratos apresentados pelas concessionárias Rodo Sul e Santa Cruz seriam economicamente inviáveis dentro deste período de tempo.

Introduction Improvements in the social functioning (SF) of people experiencing substance use disorders (SUD) can occur even without use discontinuation. Occupational Therapy (OT) performs multifaceted work on it. Objective This study analyzes the SF of people experiencing SUD before and after treatment and the contributions of OT. Method A pre and post-study before and after starting treatment for SUD in a Psychosocial Care Centre - Alcohol and other Drugs (CAPS-AD) in Brasilia, Brazil - was conducted with 35 clients based on an SF questionnaire. A measure of the participant's SF improvement was defined as the difference between the SF before treatment (SFpre) with the SF after treatment (SFafter). The association between SF and sociodemographic variables/drug/previous treatment was verified by linear regression; all analyses considered a significance level <5%. Results Most of the 35 participants were male (83%), 30-49 years old (77%), attended elementary school (57%), unemployed (57%), single (46%), Black (40%), had been treated previously (60%) and had present alcohol use disorder (46%). Overall, people undergoing treatment significantly improved their SF. Multivariate analysis showed that Whites improved their SF more (mean of 18.8± 10.4) than Pardos/Blacks (10.8± 8.7; 14.1± 6.4), and the improvement in SF was lower for participants who were taking treatment for the first time (10.3± 5.7) compared with those who had previous treatment (17.2± 9.4). Conclusion Treatment in CAPS-AD improved the SF of people experiencing SUD, and the OT professional is a key agent in improving SF due to its performance and approach to clients in vulnerable contexts.

Background: Population aging is a phenomenon that represents a challenge to the health systems, especially to settings with limited economic resources. In this scenario, it is essential to perform adequate screening, diagnostic, and therapeutic approaches to reduce health vulnerability. To investigate, for the first time, the potential role of Vulnerable Elders Survey (VES-13) to identify older adults with Limited Life Expectancy (LLE) (defined as estimated 10-year mortality risk ≥ 50%) in Primary Health Care (PHC) settings. Methods: This cross-sectional study was performed in all PHC units in Jatai (Brazil) from July to December 2018. The sample size of 407 elderly individuals was obtained considering an older population (≥60 years old) of 10,853, a 50% prevalence, a 5% margin of error, a 95% confidence level, and 10% of possible losses. Participants answered a questionnaire about sociodemographic and clinical characteristics, including the VES-13 (a tool to identify health vulnerability) and the Suemoto index (an index to estimate 10-year mortality risk for community-dwelling older adults). We tested the association between LLE and VES-13, using multiple logistic regression analysis. In addition, we investigated the discrimination of the VES-13 in identifying individuals with LLE using the area under the receiver operator characteristic curve (AUROC). Results: The mean age was 68.9 ± 6.6yo, and 58% were women. The mean score of VES-13 was 2.0 ± 2.2, the mean score of Suemoto index was 31.5 ± 21.1%, and 17.2% had LLE. The VES-13 was associated with LLE (OR=1.57; p=<0.0001). Moreover, a VES-13 score ≥2 points was able to discriminate LLE (AUROC=0.764 (95%CI=0.078-0.820); sensitivity 81%). Conclusion: VES-13was able to identify older adults with LLE in PHC settings. Thus, the VES-13 could play a role in detecting older adults that would not benefit from screening (e.g., colorectal cancer) and strict control of chronic diseases (e.g., diabetes). However, other longitudinal studies are needed to confirm the role of VES-13 in identifying older adults with LLE, before the VES-13 can be adopted in routine clinical practice decisions in PHC, since we used a prediction model to identify LLE.