Results 71 to 80 of about 240,126 (265)
Periodic solutions for a class of second order differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2013 New results about the existence of periodic solutions for second order differential equations are provided. The method of proof relies on the Schauder's fixed point theorem. Some examples are presented to illustrate the main results.
Weibing Wang, Yan Luo
doaj +1 more source
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
ON PERIODIC SOLUTIONS OF THE SECOND ORDER EQUATION
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019 The sufficient conditions for the existence of several isolated periodic solutions of the equation are obtained.
V. E. Zhavnerchik
doaj
Rotating periodic solutions for second order systems with Hartman-type nonlinearity
Boundary Value Problems, 2018 In this paper, by a constructive proof based on the homotopy continuation method, we prove that the second order system x″=g(t,x) $x''=g(t,x)$ admits rotating periodic solutions with form u(t+T)=Qu(t) $u(t+T)=Qu(t)$ for any orthogonal matrix Q when the ...
Jian Li, Xiaojun Chang, Yong Li
doaj +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
On a first order unilateral evolutive periodic problem.
Ratio Mathematica, 1996 We consider the periodic problem related to a first order evolutive variational equation and we study existence of solution.
A Gallo, A. M. Piccirillo
doaj
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
On periodic solutions of fractional-order differential systems with a fixed length of sliding memory
Journal of Innovative Applied Mathematics and Computational Sciences, 2021 The fractional-order derivative of a non-constant periodic function is not periodic with the same period. Consequently, any time-invariant fractional-order systems do not have a non-constant periodic solution.
Safa Bourafa +2 more
doaj
Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics
FEBS Letters, EarlyView.Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt +8 more
wiley +1 more source
Multiplicity of Periodic Solutions for a Higher Order Difference Equation
Abstract and Applied Analysis, 2014 We study a higher order difference equation. By Lyapunov-Schmidt reduction methods and computations of critical groups, we prove that the equation has four M-periodic solutions.
Ronghui Hu
doaj +1 more source