FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Existence of positive periodic solutions for non-autonomous functional differential equations
Electronic Journal of Differential Equations, 2001 We establish the existence of positive periodic solutions for a first-order differential equation with periodic delay. For this purpose, we use the fixed point theorem proved by Krasnoselskii.
Sui Sun Cheng, Guang Zhang
doaj
Periodic positive solutions of superlinear delay equations via topological degree. [PDF]
Philos Trans A Math Phys Eng Sci, 2021 Amster P, Benevieri P, Haddad J.
europepmc +1 more source
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
Radial positive solutions for a nonpositone problem in an annulus
Electronic Journal of Differential Equations, 2014 The main purpose of this article is to prove the existence of radial positive solutions for a nonpositone problem in an annulus when the nonlinearity is superlinear and has more than one zero.
Said Hakimi, Abderrahim Zertiti
doaj
Positive solutions of systems of perturbed Hammerstein integral equations with arbitrary order dependence. [PDF]
Philos Trans A Math Phys Eng Sci, 2021 Infante G.
europepmc +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Nonexistence of positive solutions for a nonpositone system in a ball
Electronic Journal of Differential Equations, 2015 In this article, we prove the nonexistence of positive solutions for a nonpositone system in a ball when the nonlinearities may have more than one zero.
Said Hakimi
doaj
The Phenomenon of Social and Pastoral Service in Eastern Slovakia and Northwestern Czech Republic during the COVID-19 Pandemic: Comparison of Two Selected Units of Former Czechoslovakia in the Context of the Perspective of Positive Solutions. [PDF]
Int J Environ Res Public Health, 2022 Maturkanič P +8 more
europepmc +1 more source
Positive solutions of the diophantine equation
International Journal of Mathematics and Mathematical Sciences, 1981 Integral solutions of x3 + λy + 1 − xyz = 0 are observed for all integral λ. For λ = 2 the 13 solutions of the equation in positive integers are determined. Solutions of the equation in positive integers were previously determined for the case λ = 1.
openaire +3 more sources