Results 71 to 80 of about 5,619,071 (301)
Positive solutions of integro-differential inequalities
Computers & Mathematics with Applications, 1997 In the present paper, the authors have studied the nonexistence of positive solutions of the following integrodifferential inequalities \[ (-1)^{n+ 1}y^{(n)}(t)+ \int^t_0 f(t- s,y(s))ds\leq 0 \] on \([0,\infty)\) \((n = 1,2,4)\) assuming that the inequalities \[ -\lambda^n+ \int^\infty_0 e^{\lambda^s} K(s)ds> 0,\quad\text{for all }\lambda>0\quad (n= 1 ...
Ravi P. Agarwal +2 more
openaire +2 more sources
FEBS Letters, EarlyView.Mutations in the C9orf72 gene represent the most common genetic cause of amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disease. Using patient‐derived neurons and C. elegans models, we find that the nucleoporin Nup107 is dysregulated in C9orf72‐associated ALS. Conversely, reducing Nup107 levels mitigates disease‐related changes.
Saygın Bilican +7 more
wiley +1 more source
Positive solutions for a nonlocal problem with singularity
Electronic Journal of Differential Equations, 2017 In this article we study a nonlocal problem involving singular nonlinearity. Based on the variational and perturbation methods, we obtain the existence of two positive solutions for this problem.
Chun-Yu Lei, Chang-Mu Chu, Hong-Min Suo
doaj
FEBS Letters, EarlyView.Single‐cell RNA sequencing reveals an opposite role of SLPI in basal tumors based on metastatic spread, along with shared activation of specific regulons in cancer cells and mature luminal lactocytes, as well as downregulation of MALAT1 and NEAT1 in the latter.
Pietro Ancona +4 more
wiley +1 more source
Bounded positive solutions of Schrödinger equations
Applied Mathematics Letters, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhaoyang Yin, Zhaoyang Yin
openaire +3 more sources
Imeglimin attenuates liver fibrosis by inhibiting vesicular ATP release from hepatic stellate cells
FEBS Letters, EarlyView.Imeglimin, at clinically relevant concentrations, inhibits vesicular ATP accumulation and release from hepatic stellate cells, thereby attenuating purinergic signaling and reducing fibrogenic activation. This mechanism reveals a newly identified antifibrotic action of imeglimin beyond glycemic control.
Seiji Nomura +8 more
wiley +1 more source
Positive Solutions of Semilinear Equations in Cones [PDF]
Transactions of the American Mathematical Society, 1992 In this paper we consider the problem of finding a positive solution of the equation Δ u + | x | ν u ( n + 2 + 2
openaire +2 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Positive periodic solutions for second-order neutral differential equations with functional delay
Electronic Journal of Differential Equations, 2012 We use Krasnoselskii's fixed point theorem to prove the existence of positive periodic solutions of the second-order nonlinear neutral differential equation $$ frac{d^2}{dt^2}x(t)+p(t)frac{d}{dt}x(t)+q(t)x(t) =cfrac{d}{dt}x(t-au(t))+f(t,h(x(t)),g(x ...
Ernest Yankson
doaj
RAD50 missense variants differentially affect the DNA damage response and mitotic progression
FEBS Letters, EarlyView.RAD50 incorporates into the MRN complex and initiates the DNA damage response. Furthermore, RAD50 promotes mitotic progression. RAD50 missense variants capable of forming an MRN complex supported the DNA damage response and mitotic features to different extents in complementation experiments, indicating these functions are separable and might impact ...
Hanna Redeker +9 more
wiley +1 more source