Publications by authors named "Antonio Cesar Germano Martins"
Noise pollution has become a public health problem in several countries worldwide. Noise maps are tools used in many cities, mainly on the European continent. In other regions, they are used in smaller areas, and few studies focus on hospital areas, considered noise-sensitive zones.
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- Environmental noise in hospitals is linked to health problems for patients and healthcare professionals, highlighting the need for targeted research in this area.
- A systematic review of studies from 2015 to 2020 was conducted, focusing on environmental noise measurements in hospital settings across various regions, primarily in Europe, the Americas, and Asia.
- Daytime noise levels in hospitals ranged from 37 to 88.6 dB (A), with nighttime levels between 38.7 to 68.8 dB (A), indicating a pressing need for guidelines to mitigate noise and improve patient outcomes.
The aim of the present work is the determination of porosity in tablets by using the gamma-ray transmission technique. Tablet dissolution depends on some inherent characteristics of the manufacturing process, such as compression force, tablet volume, density and porosity, nature of excipients, preparation methods and its physical-chemical properties. Porosity is a measure of empty spaces in a material and can be determined by various techniques.
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