Results 41 to 50 of about 25,447,146 (290)

Chemical Mechanism Solvers in Air Quality Models

open access: yesAtmosphere, 2011
The solution of chemical kinetics is one of the most computationally intensivetasks in atmospheric chemical transport simulations. Due to the stiff nature of the system,implicit time stepping algorithms which repeatedly solve linear systems of equations ...
John C. Linford   +3 more
doaj   +1 more source

The Synthesizability of Molecules Proposed by Generative Models [PDF]

open access: yesJournal of Chemical Information and Modeling, 2020
The discovery of functional molecules is an expensive and time-consuming process, exemplified by the rising costs of small molecule therapeutic discovery.
Wenhao Gao, Connor W. Coley
semanticscholar   +1 more source

Parametric Kalman filter for chemical transport models

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2016
A computational simplification of the Kalman filter (KF) is introduced – the parametric Kalman filter (PKF). The full covariance matrix dynamics of the KF, which describes the evolution along the analysis and forecast cycle, is replaced by the dynamics ...
Olivier Pannekoucke   +4 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

The effect of ultrasound treatment in combination with nisin on the inactivation of Listeria innocua and Escherichia coli

open access: yesUltrasonics Sonochemistry, 2021
Ultrasound, alone or in combination with natural antimicrobials, is a novel food processing technology of interest to replace traditional food decontamination methods, as it is milder than classical sterilisation (heat treatment) and maintains desirable ...
Katherine M. Costello   +6 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

High School Students’ Mental Models on Chemical Equilibrium

open access: yesJurnal Pendidikan Sains, 2019
: Chemical equilibrium knowledge has many abstract concepts that often lead to alternative conceptions and misconceptions. One way that can be used to find out students’ conceptions is to identify their mental models.The purpose of this study was to ...
Hilya Ulinnaja   +2 more
doaj   +1 more source

Leveraging large language models for predictive chemistry

open access: yesNature Machine Intelligence
Machine learning has transformed many fields and has recently found applications in chemistry and materials science. The small datasets commonly found in chemistry sparked the development of sophisticated machine learning approaches that incorporate ...
K. Jablonka   +3 more
semanticscholar   +1 more source

Exploring the GDB-13 chemical space using deep generative models

open access: yesJournal of Cheminformatics, 2018
Recent applications of recurrent neural networks (RNN) enable training models that sample the chemical space. In this study we train RNN with molecular string representations (SMILES) with a subset of the enumerated database GDB-13 (975 million molecules)
Josep Arús‐Pous   +5 more
semanticscholar   +1 more source

Biomass burning aerosols in most climate models are too absorbing

open access: yesNature Communications, 2021
Uncertainty in the representation of biomass burning (BB) aerosol composition and optical properties in climate models contributes to a range in modeled aerosol effects on incoming solar radiation.
Hunter Brown   +20 more
semanticscholar   +1 more source

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