Results 21 to 30 of about 7,880,129 (337)

Too packed to change: side-chain packing and site-specific substitution rates in protein evolution [PDF]

open access: yesPeerJ, 2015
In protein evolution, due to functional and biophysical constraints, the rates of amino acid substitution differ from site to site. Among the best predictors of site-specific rates are solvent accessibility and packing density.
María Laura Marcos, Julian Echave
doaj   +2 more sources

The strategic integration of agile and lean supply [PDF]

open access: yes, 2003
Lean supply is closely associated with enabling flow and the elimination of wasteful variation within the supply chain. However, lean operations depend on level scheduling and the growing need to accommodate variety and demand uncertainty has resulted in
Christopher   +19 more
core   +1 more source

Investigation of dynamic influences in tilted-wave interferometry [PDF]

open access: yesEPJ Web of Conferences, 2022
Aspherical and freeform lenses allow for compact optical systems and have therefore gained high interest in optics. The interferometric measurement of these forms is a challenge, for which the tilted-wave interferometer (TWI) has been developed.
Scholz Gregor   +2 more
doaj   +1 more source

A single extracellular amino acid in Free Fatty Acid Receptor 2 defines antagonist species selectivity and G protein selection bias [PDF]

open access: yes, 2017
Free Fatty Acid Receptor 2 is a GPCR activated by short chain fatty acids produced in high levels in the lower gut by microbial fermentation of non-digestible carbohydrates.
Aoki, Junken   +9 more
core   +3 more sources

The adverse metabolic effects of branched-chain amino acids are mediated by isoleucine and valine.

open access: yesCell Metabolism, 2021
Low-protein diets promote metabolic health in rodents and humans, and the benefits of low-protein diets are recapitulated by specifically reducing dietary levels of the three branched-chain amino acids (BCAAs), leucine, isoleucine, and valine.
Deyang Yu   +26 more
semanticscholar   +1 more source

Variational collision integrator for polymer chains [PDF]

open access: yesJournal of Computational Physics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leyendecker, Sigrid   +2 more
openaire   +1 more source

Markov chain Monte Carlo enhanced variational quantum algorithms

open access: yesQuantum Science and Technology, 2022
Abstract Variational quantum algorithms have the potential for significant impact on high-dimensional optimization, with applications in classical combinatorics, quantum chemistry, and condensed matter. Nevertheless, the optimization landscape of these algorithms is generally nonconvex, leading the algorithms to converge to local, rather
Taylor L Patti   +3 more
openaire   +2 more sources

Energy Supply Chain Optimization Under Demand Variation and Emission Constraints

open access: yesChemical Engineering Transactions, 2011
preview not available - see full-text PDF article.
V. Bounovas   +3 more
doaj   +1 more source

Mercury biomagnification in an ichthyic food chain of an amazon floodplain lake (Puruzinho Lake): Influence of seasonality and food chain modeling

open access: yesEcotoxicology and Environmental Safety, 2021
Mercury (Hg) biomagnification in fish food chains is a relevant subject due to the high fish consumption of the Amazonian population and the high toxicity of this metal.
Lucas Silva Azevedo   +5 more
doaj   +1 more source

Robustness of large-scale stochastic matrices to localized perturbations [PDF]

open access: yes, 2013
Upper bounds are derived on the total variation distance between the invariant distributions of two stochastic matrices differing on a subset W of rows.
Como, Giacomo, Fagnani, Fabio
core   +2 more sources

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