Results 81 to 90 of about 1,268,186 (296)

Effects of IGFBP4 deficiency on human preadipocyte proliferation and differentiation through the IGF1R/AKT pathway

FEBS Open Bio, EarlyView.
IGFBP4 knockdown (KD) impairs preadipocyte proliferation and is associated with IGF1R protein downregulation and attenuated AKT phosphorylation. The mechanisms by which IGFBP4 KD influences the IGF1R/AKT signaling pathway involve newly synthesized proteins and lysosomal degradation pathways. Created in BioRender.
Yujia Guo, Sandy Richter, Christoph Bach, Wieland Kiess, Anna Kirstein, Diana Le Duc, Antje Garten   +6 more
wiley   +1 more source

The role of averaging principle in stochastic fractional delay integro-differential equations

Ain Shams Engineering Journal
In this study, we investigate the averaging principle (AVG-P) for solving stochastic fractional delay integro-differential equations (SFDIDEs) driven by Brownian motion. The existence and uniqueness of SFDIDEs are established from the Banach fixed point (
M. Latha Maheswari, Karthik Muthusamy, Mohammad Sajid   +2 more
doaj   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

A Note on Averaging Principles for Fractional Stochastic Differential Equations

Fractal and Fractional
Over the past few years, many scholars began to study averaging principles for fractional stochastic differential equations since they can provide an approximate analytical method to reduce such systems.
Jiankang Liu, Haodian Zhang, Jinbin Wang, Chen Jin, Jing Li, Wei Xu   +5 more
doaj   +1 more source

Probability-Weighted Optimal Control for Nonlinear Stochastic Vibrating Systems with Random Time Delay

Shock and Vibration, 2018
A probability-weighted optimal control strategy for nonlinear stochastic vibrating systems with random time delay is proposed. First, by modeling the random delay as a finite state Markov process, the optimal control problem is converted into the one of ...
R. C. Hu, Q. F. Lü, X. F. Wang, Z. G. Ying, R. H. Huan   +4 more
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

FEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea, Francesco Angelucci, Federica Arnesano, Gianmarco Pascarella, Patrizio Di Micco, Andrea Bellelli   +5 more
wiley   +1 more source

Averaging principle for nonautonomous slow-fast systems of stochastic reaction-diffusion equations: The almost periodic case [PDF]

, 2017
We study the validity of an averaging principle for a slow-fast system of stochastic reaction-diffusion equations. We assume here that the coefficients of the fast equation depend on time, so that the classical formulation of the averaging principle in ...
Alessandra Lunardi, CERRAI, SANDRA, Sandra Cerrai, Lunardi, Alessandra   +3 more
core   +1 more source

Qualitative Analysis for the Solutions of Fractional Stochastic Differential Equations

Axioms
Fractional pantograph stochastic differential equations (FPSDEs) combine elements of fractional calculus, pantograph equations, and stochastic processes to model complex systems with memory effects, time delays, and random fluctuations. Ensuring the well-
Abdelhamid Mohammed Djaouti, Muhammad Imran Liaqat   +1 more
doaj   +1 more source

Strong Averaging Principle for Slow-Fast Stochastic Partial Differential Equations with Locally Monotone Coefficients

, 2023
Liu W, Röckner M, Sun X, Xie Y. Strong Averaging Principle for Slow-Fast Stochastic Partial Differential Equations with Locally Monotone Coefficients. Applied Mathematics and Optimization .
Xie, Yingchao, Röckner, Michael, Liu, Wei, Sun, Xiaobin, Yingchao Xie, Michael Röckner, Wei Liu, Xiaobin Sun   +7 more
core   +1 more source

Existence, averaging principle and trajectory controllability for neutral impulsive fractional stochastic differential evolution system

Journal of Inequalities and Applications
This work concerns with the study on existence, averaging principle, and trajectory controllability (TC) on neutral impulsive fractional stochastic differential evolution equations (NIFSDEs) with infinite time delay driven by Poisson jumps and fractional
Ahmed Ramady, S. Varshini, Ravikumar Kasinathan, Ramkumar Kasinathan, Dimplekumar Chalishajar, Hamdy M. Ahmed   +5 more
doaj   +1 more source