During preventive and mandatory social isolation decreed by the Argentine National Government to contain the spread of COVID-19, the city of Buenos Aires has experienced a marked decrease in vehicular traffic. To study this new scenario, the Acoustic Impact Department of the Environmental Protection Agency carried out a series of uninterrupted urban noise measurements for one week in five measurement points. The results were compared with those obtained before quarantine and with the maximum permissible limits according to current legislation. Although considerable decreases in sound energy have been obtained, it was not possible to determine global values of noise level reduction since the results were of different magnitudes in each location and period.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7857504 | PMC |
| http://dx.doi.org/10.1121/10.0002423 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reconstruction of vibration noise in plate structures based on Data-Physics driven model and transfer learning.
J Acoust Soc Am
January 2025
Urban Construction Center of Lucheng District of Wenzhou, Wenzhou, 325000, China.
The identification of vibration and reconstruction of sound fields of plate structures are important for understanding the vibroacoustic characteristics of complex structures. This paper presents a data-physics driven (DPD) model integrated with transfer learning (DPDT) for high-precision identification and reconstruction of vibration and noise radiation of plate structures. The model combines the Kirchhoff-Helmholtz integral equation with convolutional neural networks, leveraging physical information to reduce the need for extensive data.
View Article and Find Full Text PDFInternal migration and its association with childhood asthma in Ecuador: a cross-sectional study.
Colomb Med (Cali)
January 2025
Universidad Internacional del Ecuador UIDE, School of Medicine, Quito, Ecuador Universidad Internacional del Ecuador Universidad Internacional del Ecuador School of Medicine Quito Ecuador.
Background: Differences in asthma prevalence between urban and rural areas have been observed worldwide. Epidemiological studies in middle- and low-income countries suggest that internal migration processes may partly explain these disparities.
Objective: To investigate the association between internal migration and asthma in children living in transitional areas of Ecuador.
Time-Series Change Detection Using KOMPSAT-5 Data with Statistical Homogeneous Pixel Selection Algorithm.
Sensors (Basel)
January 2025
Satellite Application Division, Korea Aerospace Research Institute (KARI), Daejeon 34133, Republic of Korea.
For change detection in synthetic aperture radar (SAR) imagery, amplitude change detection (ACD) and coherent change detection (CCD) are widely employed. However, time-series SAR data often contain noise and variability introduced by system and environmental factors, requiring mitigation. Additionally, the stability of SAR signals is preserved when calibration accounts for temporal and environmental variations.
View Article and Find Full Text PDFPrevalence of Dental Fear and Its Association with Oral Health Status Among School Children in Bosnia and Herzegovina: A Cross-Sectional Study.
Medicina (Kaunas)
January 2025
Department of Dental Pathology, Faculty of Medicine, University of East Sarajevo, Studentska bb, 73300 Foca, Bosnia and Herzegovina.
: This study aimed to examine the prevalence of dental fear among schoolchildren in Bosnia and Herzegovina, analyze the distribution of dental anxiety by gender, age, and place of residence in relation to perceived sources of fear, and evaluate its association with oral health status. : The sample included 355 schoolchildren between the ages of 12 and 15. Data were gathered using a self-assessment questionnaire, a brief clinical oral examination, and the Children's Fear Survey Schedule-Dental Subscale (CFSS-DS).
View Article and Find Full Text PDFGreen Environments and Healthy Aging: Analyzing the Role of Green Infrastructure in the Functional Well-Being of Seniors-A Pilot Study.
Int J Environ Res Public Health
December 2024
Centro Interdisciplinar em Ciências da Saúde-CICS, ISAVE, Rua Castelo de Almourol nº 13, 4720-155 Amares, Portugal.
Health professionals have slowly integrated the environment and green areas into their prescriptions to connect patients with nature and outdoor activities. The World Health Organization recommends that everyone reside within 300 m of green regions to improve well-being and physical and mental health. The study aimed to explore the effects of urban and rural green areas on multiple physiological and functional variables, as well as evaluate the perception of individuals regarding the ease of use of these same spaces.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!