Results 1 to 10 of about 4,380,023 (312)

All that is silver is not toxic: silver ion and particle kinetics reveals the role of silver ion aging and dosimetry on the toxicity of silver nanoparticles

Particle and Fibre Toxicology, 2018
Background When suspended in cell culture medium, nano-objects composed of soluble metals such as silver can dissolve resulting in ion formation, altered particle properties (e.g. mass, morphology, etc.), and modulated cellular dose.
Jordan N. Smith, Dennis G. Thomas, Hadley Jolley, Vamsi K. Kodali, Matthew H. Littke, Prabhakaran Munusamy, Donald R. Baer, Matthew J. Gaffrey, Brian D. Thrall, Justin G. Teeguarden   +9 more
doaj   +1 more source

A framework for expanding aqueous chemistry in the Community Multiscale Air Quality (CMAQ) model version 5.1 [PDF]

Geoscientific Model Development, 2017
This paper describes the development and implementation of an extendable aqueous-phase chemistry option (AQCHEM − KMT(I)) for the Community Multiscale Air Quality (CMAQ) modeling system, version 5.1.
K. M. Fahey, A. G. Carlton, H. O. T. Pye, J. Baek, W. T. Hutzell, C. O. Stanier, K. R. Baker, K. W. Appel, M. Jaoui, J. H. Offenberg   +9 more
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Predicting molecular initiating events using chemical target annotations and gene expression

BioData Mining, 2022
Background The advent of high-throughput transcriptomic screening technologies has resulted in a wealth of publicly available gene expression data associated with chemical treatments.
Joseph L. Bundy, Richard Judson, Antony J. Williams, Chris Grulke, Imran Shah, Logan J. Everett   +5 more
doaj   +1 more source

Cognitive Impairment Is Associated with AMPAR Glutamatergic Dysfunction in a Mouse Model of Neuronal Methionine Synthase Deficiency

Cells, 2023
Impairment of one-carbon metabolism during pregnancy, either due to nutritional deficiencies in B9 or B12 vitamins or caused by specific genetic defects, is often associated with neurological defects, including cognitive dysfunction that persists even ...
Ziad Hassan, David Coelho, Carine Bossenmeyer-Pourié, Karim Matmat, Carole Arnold, Aurélie Savladori, Jean-Marc Alberto, Rémy Umoret, Jean-Louis Guéant, Grégory Pourié   +9 more
doaj   +1 more source

Development and evaluation of a physics‐based windblown dust emission scheme implemented in the CMAQ modeling system

Journal of Advances in Modeling Earth Systems, 2017
A new windblown dust emission treatment was incorporated in the Community Multiscale Air Quality (CMAQ) modeling system. This new model treatment has been built upon previously developed physics‐based parameterization schemes from the literature.
H. Foroutan, J. Young, S. Napelenok, L. Ran, K. W. Appel, R. C. Gilliam, J. E. Pleim   +6 more
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A simple lightning assimilation technique for improving retrospective WRF simulations

Journal of Advances in Modeling Earth Systems, 2016
Convective rainfall is often a large source of error in retrospective modeling applications. In particular, positive rainfall biases commonly exist during summer months due to overactive convective parameterizations. In this study, lightning assimilation
Nicholas K. Heath, Jonathan E. Pleim, Robert C. Gilliam, Daiwen Kang   +3 more
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Custom mentholation of commercial cigarettes for research purposes

Toxicology Reports, 2014
In the U.S. menthol remains the sole permitted characterizing cigarette flavor additive in part because efforts to link menthol cigarette use to increased tobacco-related disease risk have been inconclusive. To perform definitive studies, cigarettes that
Ian C. MacGregor, Stephen B. Stanfill, Sydney M. Gordon, Douglas J. Turner, Jenny M. Butler, Elizabeth A. Hanft, Hyoshin Kim, Robyn R. Kroeger, Marielle C. Brinkman, Margaret E. Tefft, Pamela I. Clark, Stephanie S. Buehler   +11 more
doaj   +1 more source

Long-term trends in the ambient PM_2.5- and O₃-related mortality burdens in the United States under emission reductions from 1990 to 2010 [PDF]

Atmospheric Chemistry and Physics, 2018
Concentrations of both fine particulate matter (PM2.5) and ozone (O3) in the United States (US) have decreased significantly since 1990, mainly because of air quality regulations.
Y. Zhang, Y. Zhang, J. J. West, R. Mathur, J. Xing, C. Hogrefe, S. J. Roselle, J. O. Bash, J. E. Pleim, C.-M. Gan, D. C. Wong   +10 more
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The separation of arsenic metabolites in urine by high performance liquid chromatographyinductively coupled plasma-mass spectrometry [PDF]

Environmental Health and Toxicology, 2014
Objectives The purpose of this study was to determine a separation method for each arsenic metabolite in urine by using a high performance liquid chromatography (HPLC)- inductively coupled plasma-mass spectrometer (ICP-MS).
Jin-Yong Chung, Hyoun-Ju Lim, Young-Jin Kim, Ki-Hoon Song, Byoung-Gwon Kim, Young-Seoub Hong   +5 more
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Nontarget mass spectrometry and in silico molecular characterization of air pollution from the Indian subcontinent

Communications Earth & Environment, 2022
A combination of high-resolution mass spectrometry and computational molecular characterization techniques can structurally annotate up to 17% of organic compounds in fine particulate matter in highly polluted air sampled in the Maldives.
Stefano Papazian, Lisa A. D’Agostino, Ioannis Sadiktsis, Jean Froment, Bénilde Bonnefille, Kalliroi Sdougkou, Hongyu Xie, Ioannis Athanassiadis, Krishnakant Budhavant, Sanjeev Dasari, August Andersson, Örjan Gustafsson, Jonathan W. Martin   +12 more
doaj   +1 more source