Results 111 to 120 of about 8,136,999 (366)

On the Existence of Systems of Periodic Solutions for Several Nonlinear Circuits. [PDF]

, 1952
Sigeru Mizohata
openalex   +1 more source

Periodic Solution of a Periodic Neutral Delay Equation

Journal of Mathematical Analysis and Applications, 1997
AbstractSufficient conditions are obtained for the existence of a positive periodic solution of the periodic neutral delay equationṄ(t)=N(t)[a(t)−∑nj=1bj(t)N(t−σj)−∑j=1ncj(t)Ṅ(t−τj)], which arise in a “food-limited” population model.
openaire   +2 more sources

Raphin‐1 mediates the survival and sensitivity to radiation of pediatric‐type diffuse high‐grade glioma via phosphorylated eukaryotic initiation factor 2α‐dependent and ‐independent processes

Molecular Oncology, EarlyView.
Raphin‐1 reduces the survival of PED‐DHGG cells and enhances their radiation sensitivity through both PeIF2α‐dependent and PeIF2α‐independent mechanisms. Raphin‐1 sustains elevated levels of PeIF2α, contributing to its PeIF2α‐dependent effects. Additionally, raphin‐1 interacts with CReP to mediate a separate radiosensitizing pathway that operates ...
Karin Eytan, Moshe Leitner, Amos Toren, Shoshana Paglin, Michal Yalon   +4 more
wiley   +1 more source

On some possible extensions of Massera's theorem

Electronic Journal of Qualitative Theory of Differential Equations, 2000
In this paper we consider ordinary and functional differential equations with $T$-periodic right hand side and look at some conjectures on proving the existence of a periodic solution.
Géza Makay
doaj   +1 more source

On the Quasi-periodic Solutions of Mathieu's Differential Equation [PDF]

, 1913
Andrew W. Young
openalex   +1 more source

Machine learning for identifying liver and pancreas cancers through comprehensive serum glycopeptide spectra analysis: a case‐control study

Molecular Oncology, EarlyView.
This study presents a novel AI‐based diagnostic approach—comprehensive serum glycopeptide spectra analysis (CSGSA)—that integrates tumor markers and enriched glycopeptides from serum. Using a neural network model, this method accurately distinguishes liver and pancreatic cancers from healthy individuals.
Motoyuki Kohjima, Yuko Takami, Ken Kawabe, Kazuhiro Tanabe, Chihiro Hayashi, Mikio Mikami, Tetsuya Kusumoto   +6 more
wiley   +1 more source

Existence of Periodic and Almost Periodic Solutions of Abstract Retarded Functional Difference Equations in Phase Spaces

Advances in Difference Equations, 2009
The existence of periodic, almost periodic, and asymptotically almost periodic of periodic and almost periodic of abstract retarded functional difference equations in phase spaces is obtained by using stability properties of a bounded solution.
Claudio Vidal
doaj   +1 more source

Determinants connected with the Periodic Solutions of Mathieu's Equations [PDF]

, 1914
Alexis Burgess
openalex   +1 more source

Exploring the role of cyclin D1 in the pathogenesis of multiple myeloma beyond cell cycle regulation

Molecular Oncology, EarlyView.
Cyclin D1 overexpression altered the cell adhesion pathway, while cyclin D2 upregulation had less impact on pathway enrichment analysis. Multiple myeloma (MM) patients with cyclin D1 overexpression showed reduced CD56 expression and increased circulating tumor cells (CTC) levels, suggesting that cyclin D1 may contribute to MM cell dissemination ...
Ignacio J. Cardona‐Benavides, Sara Cristobal‐Vargas, Cristina De Ramón, Elizabeta A. Rojas, Irena Misiewicz‐Krzeminska, Isabel Isidro, José Juan Pérez, Bruno Paiva, Noemi Puig, Miguel Alcoceba, María‐Victoria Mateos, Luis A. Corchete, Myriam Cuadrado, Norma C. Gutiérrez   +13 more
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