Results 1 to 10 of about 162,844 (217)

Cutting-edge computational chemical exposure research at the U.S. Environmental Protection Agency

Environment International, 2023
Exposure science is evolving from its traditional “after the fact” and “one chemical at a time” approach to forecasting chemical exposures rapidly enough to keep pace with the constantly expanding landscape of chemicals and exposures. In this article, we
Timothy J. Buckley, Peter P. Egeghy, Kristin Isaacs, Ann M. Richard, Caroline Ring, Risa R. Sayre, Jon R. Sobus, Russell S. Thomas, Elin M. Ulrich, John F. Wambaugh, Antony J. Williams   +10 more
doaj   +3 more sources

Computational Nanotoxicology Models for Environmental Risk Assessment of Engineered Nanomaterials

Nanomaterials
Although engineered nanomaterials (ENMs) have tremendous potential to generate technological benefits in numerous sectors, uncertainty on the risks of ENMs for human health and the environment may impede the advancement of novel materials. Traditionally,
Weihao Tang, Xuejiao Zhang, Huixiao Hong, Jingwen Chen, Qing Zhao, Fengchang Wu   +5 more
doaj   +3 more sources

Development of anthropomorphic computational phantoms at the UFPE

Brazilian Journal of Radiation Sciences, 2023
To evaluate the amount of energy deposited in radiosensitive organs and tissues of the human body, when an anthropomorphic phantom is irradiated, researchers in numerical dosimetry use the so-called exposure computational models (ECMs).
José Wilson Vieira, Pedro Henrique Avelino Andrade, Alex Cristóvão Holanda Oliveira, Vanildo Júnior de Melo Lima, Isabelle Viviane Batista Lacerda, Arykerne Casado Silva, Ivan Eufrázio Santana, Whoody Alem Wanderley Farias, Larissa Cristina Silva Santos, Fernanda Gonçalves Oliveira, Fernando Roberto de Andrade Lima   +10 more
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Exposure computational models with voxel phantoms coupled to EGSnrc Monte Carlo code

Brazilian Journal of Radiation Sciences, 2023
In computational dosimetry of ionizing radiation, the energy deposited in radiosensitive organs and tissues is evaluated when an anthropomorphic simulator (phantom) is irradiated using Exposure Computational Models (ECMs).
José Wilson Vieira, Viriato Leal Neto, Pedro Henrique Avelino de Andrade, Alex Cristóvão Holanda de Oliveira, Vanildo Júnior de Melo Lima, Isabelle Viviane Batista de Lacerda, Luís Rodrigo Dandrada, Arykerne Nascimento Casado da Silva, William de Souza Santos, Ivan Eufrázio de Santana, Whoody Alem Wanderley Araripe Farias, Larissa Cristina Silva dos Santos, Fernanda Gonçalves Oliveira, Fernando Roberto de Andrade Lima   +13 more
doaj   +1 more source

Exploring Projections for HIV Infection with Pre-Exposure Prophylaxis Usage in a High-Risk Population

Applied Sciences, 2022
Prevention of type-1 human immunodeficiency virus (HIV) infections has primarily been through condom usage, abstinence, and behavioral and risk awareness programs.
Jeramy Lewis, Robert E. Camley
doaj   +1 more source

Intercomparison of the Averaged Induced Electric Field in Learning-Based Human Head Models Exposed to Low-Frequency Magnetic Fields

IEEE Access, 2023
Anatomical human models have been widely used in the assessment of induced field strength for low-frequency (LF) electromagnetic field exposure. One bottleneck is the assignment of a single electrical conductivity to all the voxels of the corresponding ...
Yinliang Diao, Essam A. Rashed, Luca Giaccone, Ilkka Laakso, Congsheng Li, Riccardo Scorretti, Yoichi Sekiba, Kenichi Yamazaki, Akimasa Hirata   +8 more
doaj   +1 more source

Comparative Study of Lightweight Deep Semantic Segmentation Models for Concrete Damage Detection

Applied Sciences, 2022
Innovative concrete structure maintenance now requires automated computer vision inspection. Modern edge computing devices (ECDs), such as smartphones, can serve as sensing and computational platforms and can be integrated with deep learning models to ...
Muhammad Tanveer, Byunghyun Kim, Jonghwa Hong, Sung-Han Sim, Soojin Cho   +4 more
doaj   +1 more source

Development of a pregnant woman phantom using polygonal mesh, for dosimetric evaluations

Brazilian Journal of Radiation Sciences, 2015
Due to the embryo/fetus radiosensitivity the accurate estimation of the absorbed dose distribution in the abdominal area is an additional problem caused by the exposure of pregnant women to ionizing radiation in medical applications.
Manuela Ohana Monteiro Cabral, José Wilson Vieira, Viriato Leal Neto, Fernando Roberto de Andrade Lima   +3 more
doaj   +1 more source

A CFD Approach for Risk Assessment Based on Airborne Pathogen Transmission

Atmosphere, 2021
The outbreak of COVID-19 necessitates developing reliable tools to derive safety measures, including safe social distance and minimum exposure time under different circumstances.
Hamid Motamedi Zoka, Mohammad Moshfeghi, Hadi Bordbar, Parham A. Mirzaei, Yahya Sheikhnejad   +4 more
doaj   +1 more source

Uso de Métodos Monte Carlo na Modelagem de uma Nuvem Radioativa Natural

Brazilian Journal of Radiation Sciences, 2015
The level of natural radiation in some regions of Brazil, and the world, have become high. One of the places that have these high levels are underground mines.
Gutemberg Luiz Sales Claudino, José Wilson Vieira, Viriato Leal Neto, Fernando Roberto Andrade Lima, Alisson Fernando Silva, Joana Caroline Lopes Soares   +5 more
doaj   +1 more source