Publications by authors named "Julio Motta Singer"
Article Synopsis
- The study examines how individual exposure to air pollution in urban areas like São Paulo varies based on socioeconomic status and commuting times.
- Researchers used black carbon levels found in autopsied lungs as a measure of pollution and analyzed data to create a misclassification index.
- Findings indicate that lower socioeconomic status and longer commuting times correlate with underestimation of actual air pollution exposure, prompting a call for urban planning reforms to address health impacts.
The determination of the post mortem interval (PMI) is important in many instances, especially in criminal investigations. So, we consider post mortem tomographic evaluation of intra-cardiac hypostasis as an additional method for such purpose. Tomographic images of the thoraces of the corpses of 23 patients who died in a hospital were obtained sequentially at one hour intervals to allow the analysis of changes in density due to hypostasis over time.
View Article and Find Full Text PDFUnlabelled: Sleep-disordered breathing (SDB) is often related to malocclusion, and dentists should be able to recognize occlusal changes that may be associated with the development, onset, or persistence of SDB. Although clinical examination is routinely used by specialists in orthodontics and functional jaw orthopedics, differences in diagnosis are very common.
Method: Two observers, both dentists specializing in functional jaw orthopedics, examined 56 children aged 7 to 9 years.
Residuals are frequently used to evaluate the validity of the assumptions of statistical models and may also be employed as tools for model selection. For standard (normal) linear models, for example, residuals are used to verify homoscedasticity, linearity of effects, presence of outliers, normality and independence of the errors. Similar uses may be envisaged for three types of residuals that emerge from the fitting of linear mixed models.
View Article and Find Full Text PDFPurpose: To compare the microtensile bond strength (muTBS) of a self-etch adhesive system (OptiBond Solo Self-Etch Adhesive System), two total etch adhesive system (OptiBond FL; OptiBond Solo), and a conventional sealant (Clinpro) applied to the occlusal surface of primary molars under saliva contamination.
Methods: Sealant and adhesive systems were applied under manufacturers' specifications with or without previous saliva contamination. After storage in distilled water at 37 degrees C for 24 hours, the specimens were longitudinally sectioned perpendicularly to the adhesive interface to obtain sticks (0.