Results 71 to 80 of about 2,932,216 (187)

Two positive solutions for second-order functional and ordinary boundary-value problems

Electronic Journal of Differential Equations, 2005
In this paper we use a fixed point theorem due to Avery and Henderson to prove, under appropriate conditions, the existence of at least two positive solutions for a second-order functional and ordinary boundary-value problem.
Kyriakos G. Mavridis, Panagiotis Ch. Tsamatos   +1 more
doaj  

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Nonexistence of radial positive solutions for a nonpositone system in an annulus

Electronic Journal of Differential Equations, 2011
In this article we study the nonexistence of radial positive solutions for a nonpositone system in an annulus by using energy analysis and comparison methods.
Said Hakimi
doaj  

Positive Solutions of a Nonlinear Fourth-order Integral Boundary Value Problem

Annals of the West University of Timisoara: Mathematics and Computer Science, 2016
In this paper, the existence of positive solutions for a nonlinear fourth-order two-point boundary value problem with integral condition is investigated. By using Krasnoselskii’s fixed point theorem on cones, sufficient conditions for the existence of at
Benaicha Slimane, Haddouchi Faouzi
doaj   +1 more source

Sur les matrices non négatives et les solutions positives de certains systèmes linéaires [PDF]

, 1939
Potron
openalex   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Numerical solution of symmetric positive differential equations [PDF]

, 1968
T. Katsanis
openalex   +2 more sources

Positive solutions and global bifurcation of strongly coupled elliptic systems

Electronic Journal of Differential Equations, 2013
In this article, we study the existence of positive solutions for the coupled elliptic system egin{gather*} -Delta u= lambda (f(u, v)+ h_{1}(x) ) quad ext{in }Omega, \ -Delta v= lambda (g(u, v)+ h_{2}(x))quad ext{in }Omega, \ u =v=0 quad ext{on ...
Jagmohan Tyagi
doaj  

Preliminary notice on the composition of the black deposit which attaches itself to the positive electrode of the battery on electrolysing solutions of argentic nitrate [PDF]

, 1882
J. W. Gatehouse
openalex   +1 more source

CCT4 promotes tunneling nanotube formation

FEBS Letters, EarlyView.
Tunneling nanotubes (TNTs) are membranous tunnel‐like structures that transport molecules and organelles between cells. They vary in thickness, and thick nanotubes often contain microtubules in addition to actin fibers. We found that cells expressing monomeric CCT4 generate many thick TNTs with tubulin.
Miyu Enomoto, Akiko Asada, Taro Saito, Kanae Ando   +3 more
wiley   +1 more source