Results 61 to 70 of about 3,311,038 (365)

Semilinear Elliptic Systems with Dependence on the Gradient [PDF]

Mediterranean Journal of Mathematics, 2018
The authors prove existence and multiplicity results for radial solutions of semilinear elliptic systems with full gradient dependence that are subject to boundary values problems on an annulus. The approach relies on the fixed point index.
F. Cianciaruso, P. Pietramala
openaire   +3 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

On a Neumann Problem with an Intrinsic Operator

Axioms
This paper investigates the existence and location of solutions for a Neumann problem driven by a (p,q) Laplacian operator and with a reaction term that depends not only on the solution and its gradient but also incorporates an intrinsic operator, which ...
Dumitru Motreanu, Angela Sciammetta
doaj   +1 more source

Gradient estimates for nonlinear elliptic equations with a gradient-dependent nonlinearity [PDF]

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 2019
AbstractIn this paper, we obtain gradient estimates of the positive solutions to weightedp-Laplacian type equations with a gradient-dependent nonlinearity of the form0.1$${\rm div }( \vert x \vert ^\sigma \vert \nabla u \vert ^{p-2}\nabla u) = \vert x \vert ^{-\tau }u^q \vert \nabla u \vert ^m\quad {\rm in}\;\Omega^*: = \Omega {\rm \setminus }\{ 0\} .$$
Ching, Joshua, Cîrstea, Florica C.
openaire   +3 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Grain size and compositional gradient dependence of thermoelectric performance for Cu3−xNixSbSe4 materials

Results in Physics, 2021
The ternary Cu3SbSe4 thermoelectric material with diamond-like structure exhibit good thermoelectric performance in the middle temperature region.
Lin Bo, Yongpeng Wang, Wenying Wang, Lei Wang, Fujin Li, Min Zuo, Yanzhen Ma, Degang Zhao   +7 more
doaj   +1 more source

Thermoelectric spin diffusion in a ferromagnetic metal

, 2009
We present a semiclassical theory of spin-diffusion in a ferromagnetic metal subject to a temperature gradient. Spin-flip scattering can generate pure thermal spin currents by short-circuiting spin channels while suppressing spin accumulations.
Ashcroft, Boukai, Gerrit E.W. Bauer, Giazotto, Gravier, Hatami, Hatami, Hershfield, Hochbaum, Moosa Hatami, Ono, Saburo Takahashi, Sadamichi Maekawa, Sales, Shimada, Tsyplyatyev, Uchida   +16 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Solvability of quasilinear elliptic equations with strong dependence on the gradient

Abstract and Applied Analysis, 2000
We study the problem of existence of positive, spherically symmetric strong solutions of quasilinear elliptic equations involving p-Laplacian in the ball. We allow simultaneous strong dependence of the right-hand side on both the unknown function and its
Darko Žubrinić
doaj   +1 more source

Pore-scale dynamics and the multiphase Darcy law

, 2020
Synchrotron x-ray microtomography combined with sensitive pressure differential measurements were used to study flow during steady-state injection of equal volume fractions of two immiscible fluids of similar viscosity through a 57-mm-long porous ...
Bijeljic, B, Blunt, MJ, Gao, Y, Lin, Q
core   +1 more source