Results 41 to 50 of about 234,721 (311)

Flow-dependent fluorescence of CCVJ

open access: yesJournal of Biological Engineering, 2017
Background The molecular rotor 9-(2-Carboxy-2-cyanovinyl)julolidine (CCVJ) is presumed to have a sensitivity towards velocity or shear which is supposed to result in a change in fluorescence quantum yield. Furthermore, a previously reported photoisomeric
Markus J. Schmidt   +2 more
doaj   +1 more source

Fluid Dynamics of Bacterial Turbulence [PDF]

open access: yesPhysical Review Letters, 2013
Self-sustained turbulent structures have been observed in a wide range of living fluids, yet no quantitative theory exists to explain their properties. We report experiments on active turbulence in highly concentrated 3D suspensions of Bacillus subtilis and compare them with a minimal fourth-order vector-field theory for incompressible bacterial ...
Dunkel, Jörn   +5 more
openaire   +6 more sources

Circulating histones as clinical biomarkers in critically ill conditions

open access: yesFEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez   +17 more
wiley   +1 more source

Development and commissioning of an aeroacoustic test bench for the investigation of single and coaxial propeller noise

open access: yesActa Acustica
This paper describes the design and commissioning of an aeroacoustic test rig for the study of single and coaxial propeller propulsive systems. The size of the propellers matches typical drone applications.
Gallo Erica   +5 more
doaj   +1 more source

Synthesis of CoxZn1-x zeolitic imidazolate frameworks (ZIFs) as efficient photocatalyst with high stability

open access: yesCatalysis Communications, 2023
Sodalite-topology zeolitic imidazolate framework-8 (ZIF-8) composed of Zn2+ ions and organic linkers exhibit excellent physical and chemical properties such as high porosity, large surface area and abundant active sites.
Dejun Xu   +5 more
doaj  

Dynamics of fluid mixtures in nanospaces [PDF]

open access: yesThe Journal of Chemical Physics, 2011
A multicomponent extension of our recent theory of simple fluids [U. M. B. Marconi and S. Melchionna, J. Chem. Phys. 131, 014105 (2009)] is proposed to describe miscible and immiscible liquid mixtures under inhomogeneous, nonsteady conditions typical of confined fluid flows.
Marconi Umberto Marini Bettolo   +2 more
openaire   +6 more sources

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

open access: yesFEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää   +2 more
wiley   +1 more source

Recent increases in tropical cyclone intensification rates

open access: yesNature Communications, 2019
Tropical cyclones that rapidly intensify are associated with the highest forecast errors and the strongest storms. This study shows that the proportion of tropical cyclones that rapidly intensify recently increased in the Atlantic basin, and that this ...
Kieran T. Bhatia   +6 more
doaj   +1 more source

Characterising Fatigue Behaviour of Nodular Cast Iron Using Micromechanical Simulations [PDF]

open access: yesMATEC Web of Conferences, 2019
Elastic-plastic porous materials experience an increase in the mean void volume fraction when they are subjected to cyclic loading. This behavior is known both from the experiments and simulations in the literature.
Lukhi Mehul   +2 more
doaj   +1 more source

Relaxation dynamics of fluid membranes [PDF]

open access: yesPhysical Review E, 2009
We study the effect of membrane viscosity in the dynamics of liquid membranes-possibly with free or internal boundaries-driven by conservative forces (curvature elasticity and line tension) and dragged by the bulk dissipation of the ambient fluid and the friction occurring when the amphiphilic molecules move relative to each other.
Arroyo, M, DeSimone, A
openaire   +7 more sources

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