Results 1 to 10 of about 12,735,429 (294)

Modeling and Simulating Chemical Reactions [PDF]

open access: yesSIAM Review, 2008
The author presents basic concepts in modelling, using the example of coupled chemical reactions. Four points are examplified: the necessity of modeling assumptions, the need of a multiscale analysis in order to cope with very different characteristic times of the system, a good understanding of deterministic versus probabilistic source of the models ...
openaire   +7 more sources

Conceitos de química dos ingressantes nos cursos de graduação do Instituto de Química da Universidade de São Paulo Chemistry concepts held by freshmen students of the Institute of Chemistry, University of São Paulo

open access: yesQuímica Nova, 2008
A diagnostic instrument was developed to evaluate the basic chemistry concepts held by freshmen students of the three Chemistry undergraduate courses offered by the University of São Paulo.
Carmen Fernandez   +3 more
doaj   +1 more source

Modification of N-terminal α-amine of proteins via biomimetic ortho-quinone-mediated oxidation

open access: yesNature Communications, 2021
Methods for selective modification of the N-terminus of proteins are of high interest, but mostly require specific amino acid residues. Here, the authors report a selective and fast method for N-terminal modification of proteins based on quinone-mediated
Siyao Wang   +8 more
doaj   +1 more source

Exploring chemical space — Generative models and their evaluation

open access: yesArtificial Intelligence in the Life Sciences, 2023
Recent advances in the field of artificial intelligence, specifically regarding deep learning methods, have invigorated research into novel ways for the exploration of chemical space.
Martin Vogt
doaj   +1 more source

eIF2B activator prevents neurological defects caused by a chronic integrated stress response

open access: yeseLife, 2019
The integrated stress response (ISR) attenuates the rate of protein synthesis while inducing expression of stress proteins in cells. Various insults activate kinases that phosphorylate the GTPase eIF2 leading to inhibition of its exchange factor eIF2B ...
Yao Liang Wong   +21 more
doaj   +1 more source

Adjustment of equations to predict the metabolizable energy of corn for meat type quails

open access: yesSemina: Ciências Agrárias, 2015
The metabolizable energy (ME) determination for foods used in quail diets, through metabolism assays, takes time, infrastructure and financial resources, which makes the development of prediction equations based on proximal composition of foods to ...
Tiago Junior Pasquetti   +7 more
doaj   +1 more source

On Quantitative Comparison of Chemical Reaction Network Models [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
Chemical reaction networks (CRNs) provide a convenient language for modelling a broad variety of biological systems. These models are commonly studied with respect to the time series they generate in deterministic or stochastic simulations. Their dynamic
Ozan Kahramanoğulları
doaj   +1 more source

INFLUENCE OF COMMERCIAL THERMAL TREATMENT ON Eucalyptus grandis Hill ex Maiden WOOD PROPERTIES

open access: yesRevista Árvore, 2021
This study aimed to evaluate the influence of commercial thermal treatment on Eucalyptus grandis considering its physical, chemical, and mechanical properties.
Carolina Aparecida Barros Oliveira   +4 more
doaj   +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

Model Discrimination in Chemical Kinetics [PDF]

open access: yesThe Open Catalysis Journal, 2009
In studies on chemical kinetics, generally after the rate data have been taken, a mechanism and an associated rate law model are proposed based on the data taken. Frequently, more than one mechanism and rate law may be consis- tent with data. In order to find the correct rate law, regression techniques (model discrimination) are applied to indentify ...
Özdemir, Burcu, Gültekin, Selahattin
openaire   +1 more source

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