Results 151 to 160 of about 2,466,381 (317)
Toward a unified approach to testing for weak separability [PDF]
In this paper we propose a unified framework for testing weak separability. We present a new three-step procedure, which is a joint test of necessary and sufficient conditions that takes account of possible measurement error and incomplete adjustment. We
Thomas Elger +3 more
core
Weak-reduction graphene oxide membrane for improving water purification performance
, 2020 © 2019 Two-dimensional (2D) materials are promising candidates for advanced water purification membranes. In this work, UV reduced GO (UrGO) membranes on the support of polyvinylidene fluoride (PVDF) had been fabricated for wastewater treatment.
R Hou (13517830) +7 more
core
Optical vortex ladder via Sisyphus pumping of Pseudospin
Nature CommunicationsRobust high-order optical vortices are much in demand for applications in optical manipulation, optical communications, quantum entanglement and quantum computing.
Sihong Lei +5 more
doaj +1 more source
FEBS Open Bio, EarlyView.Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero +5 more
wiley +1 more source
Microsystems & NanoengineeringIn nuclear magnetic resonance (NMR) co-magnetometers, the non-uniform transverse energy distribution of the pumping Gaussian beam can result in substantial optical pumping inhomogeneity and decoherence of atomic spins, which hinder the improvement of the
Yan Xu +6 more
doaj +1 more source
FEBS Open Bio, EarlyView.Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata +13 more
wiley +1 more source
FEBS Open Bio, EarlyView.The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley +1 more source
On weak continuity and weak \(\delta\)-continuity
Journal of Numerical Analysis and Approximation Theory, 1990 For a topological space (X,\(\tau\)) and \(A\subset X\), the \(\theta\)- interior of A is defined in the following way: \(\theta\) int A\(=\{x\in A:\) there is an open \(U\ni x\) such that \(x\in U\subset cl U\subset A\}\). A subset A of (X,\(\tau\)) is called regular open (\(\theta\)-open) if \(A=int(cl A)\) \((A=\theta int A)\).
openaire +4 more sources
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source