Results 111 to 120 of about 163,164 (293)
Tight Bounds for Sketching the Operator Norm, Schatten Norms, and Subspace Embeddings [PDF]
, 2016 We consider the following oblivious sketching problem: given epsilon in (0,1/3) and n >= d/epsilon^2, design a distribution D over R^{k * nd} and a function f: R^k * R^{nd} -> R}, so that for any n * d matrix A, Pr_{S sim D} [(1-epsilon) |A|_{op} = 2/3 ...
Woodruff, David P., Li, Yi
core +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
AIMS Mathematics<p>Existence and multiplicity of three weak solutions for a Leray-Lions $ p(x) $-biharmonic problem involving Hardy potential and indefinite weight were proved. Our main tools combined variational methods and some critical theorems.</p>
K. Kefi, Jian Liu
openaire +2 more sources
The Hodge star operator on Schubert forms
, 2002 Let X=G/P be a homogeneous space of a complex semisimple Lie group G equipped with a hermitian metric. We study the action of the Hodge star operator on the space of harmonic differential forms on X.
Harry Tamvakis +3 more
core +1 more source
FEBS Open Bio, EarlyView.Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman +4 more
wiley +1 more source
FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Hypermonogenic solutions and plane waves of the Dirac operator in R-p x R-q
, 2019 In this paper we first define hypermonogenic solutions of the Dirac operator in R-p x R-q and study some basic properties, e.g., obtaining a Cauchy integral formula in the unit hemisphere.
Sommen, Franciscus +2 more
core +1 more source
FEBS Open Bio, EarlyView.Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel +8 more
wiley +1 more source
Existence of solutions for elliptic systems in R^N involving the p(x)-Laplacian
Electronic Journal of Differential Equations, 2012 This article presents sufficient conditions for the existence of non-trivial solutions for a nonlinear elliptic system. To establish this result, we use a classical existence theorem in reflexive Banach spaces, under some growth conditions on the non-
Ali Djellit, Zahra Youbi, Saadia Tas
doaj
Some results for a kind of Kirchhoff-type problems involving the p(x)-biharmonic operator
FilomatOur focus in this study revolves around investigating a Kirchhoff problem involving the p(x)-biharmonic operator. The purpose is to study the existence and multiplicity of weak solutions for our problem without assuming the Ambrosetti-Rabinowitz condition.
Ahmadi El, Anass Lamaizi, Gustavo Costa
openaire +1 more source