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Modeling peak ground acceleration for earthquake hazard safety evaluation.
Sci Rep
December 2024
Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran.
This paper presents a ground motion prediction (GMP) model using an artificial neural network (ANN) for shallow earthquakes, aimed at improving earthquake hazard safety evaluation. The proposed model leverages essential input variables such as moment magnitude, fault type, epicentral distance, and soil type, with the output variable being peak ground acceleration (PGA) at 5% damping. To develop this model, 885 data pairs were obtained from the Pacific Engineering Research Center, providing a robust dataset for training and validation.
View Article and Find Full Text PDFMicrobial diversity and biogeochemical interactions in the seismically active and CO- rich Eger Rift ecosystem.
Environ Microbiome
December 2024
GFZ German Research Centre for Geosciences, Section Geomicrobiology, Potsdam, Germany.
The Eger Rift subsurface is characterized by frequent seismic activity and consistently high CO concentrations, making it a unique deep biosphere ecosystem and a suitable site to study the interactions between volcanism, tectonics, and microbiological activity. Pulses of geogenic H during earthquakes may provide substrates for methanogenic and chemolithoautotrophic processes, but very little is currently known about the role of subsurface microorganisms and their cellular processes in this type of environment. To assess the impact of geologic activity on microbial life, we analyzed the geological, geochemical, and microbiological composition of rock and sediment samples from a 238 m deep drill core, running across six lithostratigraphic zones.
View Article and Find Full Text PDFLong-term Impact of Continuous Glucose Monitoring Assistance on Glycemic Control in Children and Adolescents with Type 1 Diabetes Following the 2023 Kahramanmaraş Earthquake.
J Clin Res Pediatr Endocrinol
December 2024
Adana City Training and Research Hospital, Adana, Turkey.
Objective: This study aimed to evaluate the impact of continuous glucose monitoring (CGM) assistance on glycemic control in children with type 1 diabetes (T1D) in earthquake-affected regions, comparing those who benefited from CGM with those who did not. Additionally, the study assessed changes in CGM metrics over nine months of CGM use.
Methods: A multicenter, cross-sectional study was conducted across 11 centers in Türkiye.
Sensitivity of Band-Pass Filtered In Situ Low-Earth Orbit and Ground-Based Ionosphere Observations to Lithosphere-Atmosphere-Ionosphere Coupling Over the Aegean Sea: Spectral Analysis of Two-Year Ionospheric Data Series.
Sensors (Basel)
December 2024
Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Ul. Oczapowskiego 2, 10-719 Olsztyn, Poland.
This study demonstrates a rich complexity of the time-frequency ionospheric signal spectrum, dependent on the measurement type and platform. Different phenomena contributing to satellite-derived and ground-derived geophysical data that only selected signal bands can be potentially sensitive to seismicity over time, and they are applicable in lithosphere-atmosphere-ionosphere coupling (LAIC) studies. In this study, satellite-derived and ground-derived ionospheric observations are filtered by a Fourier-based band-pass filter, and an experimental selection of potentially sensitive frequency bands has been carried out.
View Article and Find Full Text PDFDifficulties faced by three hospitals evacuated from the urgent protective action planning zone after the 2011 Fukushima Daiichi Nuclear power plant accident.
J Radiat Res
December 2024
Department of Radiation Health Management, Fukushima Medical University, School of Medicine, 1 Hikarigaoka, Fukushima-shi, Fukushima 960-1295, Japan.
In radiological disasters, evacuating institutionalized individuals such as hospitalized patients and nursing home residents presents complex challenges. The Fukushima Daiichi Nuclear power plant (FDNPP) accident, triggered by the Great East Japan Earthquake (GEJE), exposed critical issues in evacuation planning. This case series investigates the evacuation difficulties encountered by three hospitals situated 20 to 30 km from the FDNPP following the GEJE and FDNPP accident.
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