Results 71 to 80 of about 96,168 (247)
Electronic Journal of Differential Equations, 2013 The existence of positive periodic solutions of a periodic Lotka-Volterra type competition system with delays and feedback controls is studied by applying the continuation theorem of coincidence degree theory.
Anh Tuan Trinh
doaj
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source
Positive periodic solutions and nonlinear eigenvalue problems for functional differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2012 This paper is devoted to investigate the existence of positive periodic solution for a functional differential equation in the form of $\lambda\mathbb{L}x=-b(t)f(x(t-\tau(t))),$ where $\mathbb{L}x=x'(t)-a(t)g(x(t))x(t)$.
Xuemei Zhang
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Molecular Oncology, EarlyView.Detection of extrachromosomal circular DNA (eccDNA) in plasma samples from EGFR‐mutated non‐small cell lung cancer patients. Plasma was collected before and during treatment with the EGFR‐tyrosine kinase inhibitor osimertinib. Plasma eccDNA was detected in all cancer samples, and the presence of the EGFR gene on eccDNA serves as a potential biomarker ...
Simone Stensgaard +5 more
wiley +1 more source
Dynamics of a Nonautonomous Leslie-Gower Type Food Chain Model with Delays
Discrete Dynamics in Nature and Society, 2011 A nonautonomous Leslie-Gower type food chain model with time delays is investigated. It is proved the general nonautonomous system is permanent and globally asymptotically stable under some appropriate conditions.
Hongying Lu, Weiguo Wang
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Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway
Molecular Oncology, EarlyView.Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed +10 more
wiley +1 more source
Existence and global attractivity positive periodic solutions for a discrete model
Electronic Journal of Differential Equations, 2006 Using a fixed point theorem in cones, we obtain conditions that guarantee the existence and attractivity of the unique positive periodic solution for a discrete Lasota-Wazewska model.
Zheng Zhou, Zhengqiu Zhang
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Molecular Oncology, EarlyView.We developed and validated a DNA methylation–based biomarker panel to distinguish pleural mesothelioma from other pleural conditions. Using the IMPRESS technology, we translated this panel into a clinically applicable assay. The resulting two classifier models demonstrated excellent performance, achieving high AUC values and strong diagnostic accuracy.
Janah Vandenhoeck +12 more
wiley +1 more source
Journal of Applied Mathematics, 2014 A mathematical model on schistosomiasis governed by periodic differential equations with a time delay was studied. By discussing boundedness of the solutions of this model and construction of a monotonic sequence, the existence of positive periodic ...
Lin Li, Zhicheng Liu
doaj +1 more source
Positive Periodic Solutions of Nonlinear First‐Order Functional Difference Equations
Discrete Dynamics in Nature and Society, 2010 We consider the existence, multiplicity, and nonexistence of positive T‐periodic solutions for the difference equations Δx(n) = a(n)g(x(n))x(n) − λb(n)f(x(n − τ(n))), and Δx(n) + a(n)g(x(n))x(n) = λb(n)f(x(n − τ(n))), where a, b : ℤ → [0, ∞) are T‐periodic, τ : ℤ → ℤ is T‐periodic.
Ruyun Ma, Tianlan Chen, Yanqiong Lu
openaire +3 more sources