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Abstract-Software-based techniques offer several advantages to increase the reliability of processor-based systems at very low cost, but they cause performance degradation and an increase of the code size. To meet constraints in performance and memory, we propose SETA, a new control-flow software-only technique that uses assertions to detect errors affecting the program flow. SETA is an independent technique, but it was conceived to work together with previously proposed data-flow techniques that aim at reducing performance and memory overheads. Thus, SETA is combined with such data-flow techniques and submitted to a fault injection campaign. Simulation and neutron induced SEE tests show high fault coverage at performance and memory overheads inferior to the state-of-the-art.

Our results indicate that the increase in the salivary ADA and DPP-IV activities as well as in the lipid peroxidation could be related of the regulation to various aspects of adipose tissue function and inflammatory obesity. It is suggested that these salivary biomarkers may be used as biochemical test in clinical abnormalities present in obesity, in the absence of oral inflammatory diseases.

Background: Obesity is characterized by a deposition of abnormal or excessive fat in adipose tissue, and is linked with a risk of damage to several metabolic and pathological processes associated with oxidative stress. To date, salivary oxidative biomarkers have been minimally explored in obese individuals. Thus, the aim of this study was to assess the concentrations of salivary oxidative biomarkers (ferric-reducing antioxidant power, uric acid, sulfhydryl groups) and lipid peroxidation in obese and overweight young subjects. Materials and methods: Levels of lipid peroxidation, ferricreducing antioxidant power, uric acid, and SH groups were determined in the saliva and serum of 149 young adults, including 54 normal weight, 27 overweight, and 68 obese individuals. Anthropometric measurements were also evaluated. Results: Salivary levels of ferric-reducing antioxidant power, sulfhydryl groups, and lipid peroxidation, as well as serum levels of ferric-reducing antioxidant power, uric acid, and lipid peroxidation were higher in obese patients when compared with individuals with normal weight. There were correlations between salivary and serum ferric-reducing antioxidant power and salivary and serum uric acid in the obese and normal-weight groups. Conclusions: Our results indicate that the increase in salivary levels of ferric-reducing antioxidant power, sulfhydryl groups, and lipid peroxidation, and serum levels of ferric-reducing antioxidant power, uric acid, and lipid peroxidation could be related to the regulation of various processes in the adipose tissue. These findings may hold promise in identifying new oxidative markers to assist in diagnosing and monitoring overweight and obese patients. Arch Endocrinol Metab. 2017;61(2):152-9.

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ARM processors are leaders in embedded systems, delivering high-performance computing, power efficiency, and reduced cost. For this reason, there is a relevant interest for its use in the aerospace industry. However, the use of sub-micron technologies has increased the sensitivity to radiation-induced transient faults. Thus, the mitigation of soft errors has become a major concern. Software-Implemented Hardware Fault Tolerance (SIHFT) techniques are a low-cost way to protect processors against soft errors. On the other hand, they cause high overheads in the execution time and memory, which consequently increase the energy consumption. In this work, we implement a set of software techniques based on different redundancy and checking rules. Furthermore, a low-overhead technique to protect the program execution flow is included. Tests are performed using the ARM Cortex-A9 processor. Simulated fault injection campaigns and radiation test with heavy ions have been performed. Results evaluate the trade-offs among fault detection, execution time, and memory footprint. They show significant improvements of the overheads when compared to previously reported techniques.

Introdução: A diarreia é um dos sinais mais antigos já descritos, atinge todas as faixas etárias, ricos e pobres, países desenvolvidos e em desenvolvimento apresentando significante relação com a pobreza. Está relacionada à elevada morbidade e mortalidade, sendo o seu manejo fundamental para melhora de indicadores sociais. Objetivo: O presente estudo analisou a evolução das taxas de hospitalização e as taxas de mortalidade por diarreia no Brasil durante os anos de 2000 a 2015. Materiais e Métodos: Foi realizado um estudo de agregado temporal, retrospectivo e descritivo de 15 anos (2000 a 2015), utilizando as taxas de mortalidade e de internação hospitalar de diarreia nos 26 estados federais e no Distrito Federal. Os dados foram extraídos do DATASUS e IBGE. Resultados: No período analisado observou-se mais de 3,4 milhões de casos de internações hospitalares por diarreia e 72 mil mortes no território brasileiro. A taxa média de internação foi de 112/100 mil habitantes (IC95%, 100-123). As maiores taxas de mortalidade foram em pacientes acima de 80 anos, com 49/100 mil habitantes (IC95%, 47-52). Observou-se ao longo dos anos uma melhora nos índices pediátricos, porém foi notado aumento da mortalidade e internação hospitalar em estados do Nordeste na população idosa. Conclusão: O Brasil apresentou melhora nos índices de internação e mortalidade por doença diarreica em um contexto geral, possivelmente devido a melhora da infraestrutura social e do tratamento hospitalar, no entanto, cuidados com a população idosa ainda merecem atenção especial principalmente no Nordeste. Contudo, investimentos ainda devem ser feitos para consolidar esse cenário.