Publications by authors named "Ubirajara C Filho"

Background And Aims: Iron deficiency tendency in individuals with hyperglycemia influences the HbA1c levels' ability to estimate the stationary blood glucose levels. This study investigated the associations of iron status indicators and HbA1c levels with anthropometric, inflammatory, regulatory, metabolic, and hematologic variables in women with hyperglycemia to most widely characterize this iron deficiency tendency.

Methods: A total of 143 volunteers (68 with normoglycemia and 75 with hyperglycemia) participated in this cross-sectional study.

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The coagulation/flocculation process is an essential step in drinking water treatment. The process of formation, growth, breakage and rearrangement of the formed aggregates is key to enhancing the understanding of the flocculation process. Artificial neural networks (ANNs) are a powerful technique, which can be used to model complex problems in several areas, such as water treatment.

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In the present study, the bioremoval of Cr(VI) and the removal of total organic carbon (TOC) were achieved with a system composed by an anaerobic filter and a submerged biofilter with intermittent aeration using a mixed culture of microorganisms originating from contaminated sludge. In the aforementioned biofilters, the concentrations of chromium, carbon, and nitrogen were optimized according to response surface methodology. The initial concentration of Cr(VI) was 137.

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