Results 101 to 110 of about 3,148,089 (334)

In vivo evidence for glycyl radical insertion into a catalytically inactive variant of pyruvate formate‐lyase

open access: yesFEBS Letters, EarlyView.
Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel   +2 more
wiley   +1 more source

Computability theory

open access: yes, 2011
Short introduction to computability theory and computational complexity.
openaire   +1 more source

P‐glycoprotein modulates the fluidity gradient of the plasma membrane of multidrug resistant CHO cells

open access: yesFEBS Letters, EarlyView.
To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche   +2 more
wiley   +1 more source

Engineering Analysis of CMS Casing

open access: yesМеханика машин, механизмов и материалов, 2014
In the article the methodological requirements that are indispensable for the implementation of construction documents for the production and operation of developed structures and facilities in order to support the transition of products into commodities
L.V. Larchenkov   +2 more
doaj  

Analysis of Minute Features in Speckled Imagery with Maximum Likelihood Estimation

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
This paper deals with numerical problems arising when performing maximum likelihood parameter estimation in speckled imagery using small samples. The noise that appears in images obtained with coherent illumination, as is the case of sonar, laser ...
Cribari-Neto Francisco   +2 more
doaj   +1 more source

Computing Networks: A General Framework to Contrast Neural and Swarm Cognitions

open access: yesPaladyn, 2010
This paper presents the Computing Networks (CNs) framework. CNs are used to generalize neural and swarm architectures. Artificial neural networks, ant colony optimization, particle swarm optimization, and realistic biological models are used as examples ...
Gershenson Carlos
doaj   +1 more source

Computational Creativity Without Computers

open access: yesJournal of Science and Technology of the Arts
Generative artificial intelligence algorithms and applications pose new challenges to the creativity of artists and educators. This study delves into the aesthetic and methodological contradictions of computational creativity, where issues arise from the clash between Romantic aesthetics and the lack of a proper connection between digital and ...
Roncoroni, Umberto, Bailón, Jaime E.
openaire   +4 more sources

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