Results 51 to 60 of about 15,587,481 (320)
Completely positive matrices and positivity of least squares solutions
Linear Algebra and its Applications, 1993 The authors give a sufficient condition for a doubly nonnegative matrix to be completely positive in terms of the positivity of the least squares solutions of a linear system associated to the matrix. Some known results on completely positive matrices are derived.
Paolo Zanardo, Luigi Salce
openaire +3 more sources
Positive solutions to boundary value problems of p-Laplacian with fractional derivative
Boundary Value Problems, 2017 In this article, we consider the following boundary value problem of nonlinear fractional differential equation with p-Laplacian operator: Dα(ϕp(Dαu(t)))=f(t,u(t ...
Xiaoyu Dong, Zhanbing Bai, Shuqin Zhang
semanticscholar +1 more source
FoxO1 signaling in B cell malignancies and its therapeutic targeting
FEBS Letters, EarlyView.FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac +3 more
wiley +1 more source
A curve of positive solutions for an indefinite sublinear Dirichlet problem
, 2019 We investigate the existence of a curve $q\mapsto u_{q}$, with $q\in(0,1)$, of positive solutions for the problem $(P_{a,q})$: $-\Delta u=a(x)u^{q}$ in $\Omega$, $u=0$ on $\partial\Omega$, where $\Omega$ is a bounded and smooth domain of $\mathbb{R}^{N}$
Kaufmann, Uriel +2 more
core +1 more source
Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia
FEBS Letters, EarlyView.This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley +1 more source
Making tau amyloid models in vitro: a crucial and underestimated challenge
FEBS Letters, EarlyView.This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
Uniqueness and existence of positive solutions for the fractional integro-differential equation
, 2017 In this paper, we study the uniqueness and existence of positive solutions for the fractional integro-differential equation with the integral boundary value problem.
Ying Wang, Lishan Liu
semanticscholar +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Educate Every Child: Promoting Positive Solutions to School Discipline in Virginia [PDF]
, 2011 Explains how suspension and expulsion for minor misbehavior leads to lower achievement, higher dropout rates, and more contact with juvenile justice.
Angela A. Ciolfi +2 more
core
FEBS Letters, EarlyView.Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke +2 more
wiley +1 more source