Publications by authors named "J Q Uchoa"
Article Synopsis
- River-aquifer interactions significantly affect water availability and environmental health, with stream water often infiltrating into aquifers when groundwater levels are lower than river water levels.
- A study of 17,972 wells in Brazil shows that 55% of these wells are below nearby streams, indicating a high likelihood of stream water seeping into the ground.
- These findings point to a critical need for combined management of groundwater and surface water to prevent streamflow losses that could threaten global water access and the ecosystems dependent on rivers.
Current-day volcanic activity in the Azores archipelago is characterized by seismic events and secondary manifestations of volcanism. Remote sensing techniques have been widely employed to monitor deformation in volcanic systems, map lava flows, or detect high-temperature gas emissions. However, using satellite imagery, it is still challenging to identify low-magnitude thermal changes in a volcanic system.
View Article and Find Full Text PDFObjective: to analyze the association of skin-to-skin contact and social determinants of health.
Methods: this is a cross-sectional study with 187 medical records of newborns from a reference rooming in in northeastern Brazil. An instrument with maternal and neonatal data was used.
The objective of the study was to validate the content and appearance of a serial album created for the promotion of food safety and utilizing regional foods. This methodological study was performed with 12 judges between April and June of 2010, who analyzed pictures and discussion cards from the serial album in terms of the appearance (clarity/comprehension) and content (relevance) validity. Regarding the appearance validation of the pictures, clarity and comprehensibility ranged between 83.
View Article and Find Full Text PDFIn this paper, an immune-inspired model, named innate and adaptive artificial immune system (IA-AIS) is proposed and applied to the problem of identification of unsolicited bulk e-mail messages (SPAM). It integrates entities analogous to macrophages, B and T lymphocytes, modeling both the innate and the adaptive immune systems. An implementation of the algorithm was capable of identifying more than 99% of legitimate or SPAM messages in particular parameter configurations.
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