Results 31 to 40 of about 194 (161)

Existence of positive periodic solutions for fourth-order nonlinear neutral differential equations with variable delay

open access: yesAdvances in Nonlinear Analysis, 2014
In this article we study the existence of positive periodic solutions for a fourth-order nonlinear neutral differential equation with variable delay.
Ardjouni Abdelouaheb   +2 more
doaj   +1 more source

Oscillation of a Circular Cylinder Subject to Water Jet [PDF]

open access: yes, 2019
Oscillation of a circular cylinder subject to water jet is analyzed theoretically, taking into outgoing film flow followed by hydraulic jump, which is considered to be almost similar to oblique impingement of a circular jet to a flat surface.
Mochimaru, Yoshihiro
core   +1 more source

Asymptotic representations of the solutions of some type n-th order differential equations

open access: yes, 2022
У данiй роботi розглядається диференцiальне рiвняння n-го порядку (r(t)u(m))(n−m) = ∑︀m k=0 pku(k), n ≥ 2, для якого знайденi умови iснування та асимптотичнi зображення розв’язкiвпридеякихумовахнафункцiї pk та функцiю r.Розв’язкитакоготипурiвнянь при m =
Карапетров, Валентин Віталійович   +1 more
core   +1 more source

The jump phenomenon associated with the dynamics of the duffing equation

open access: yesPhysics Open, 2020
The mathematical nature of the jump phenomenon associated with the damped, harmonically forced Duffing equation is investigated, as regards the amplitude of the harmonic response of the system.
M.P. Markakis
doaj   +1 more source

A Hypothetical‐Mathematical Model of Acute Myeloid Leukaemia Pathogenesis

open access: yesComputational and Mathematical Methods in Medicine, Volume 11, Issue 1, Page 49-65, 2010., 2010
Acute myeloid leukaemia is defined by the expansion of a mutated haematopoietic stem cell clone, with the inhibition of surrounding normal clones. Haematopoiesis can be seen as an evolutionary tree, starting with one cell that undergoes several divisions during the expansion phase, afterwards losing functional cells during the aging‐related contraction
Andrei Cucuianu, Radu Precup
wiley   +1 more source

Mathematical Model Creation for Cancer Chemo‐Immunotherapy

open access: yesComputational and Mathematical Methods in Medicine, Volume 10, Issue 3, Page 165-184, 2009., 2009
One of the most challenging tasks in constructing a mathematical model of cancer treatment is the calculation of biological parameters from empirical data. This task becomes increasingly difficult if a model involves several cell populations and treatment modalities.
Lisette de Pillis   +7 more
wiley   +1 more source

On infinite system of Caputo fractional differential inclusions with boundary conditions for convex-compact multivalued mappings

open access: yesAlexandria Engineering Journal, 2020
Y. Xu (2016) investigated existence results of Caputo fractional differential equations with integral and anti-periodic boundary conditions of fractional order α∈(1,2).
Mahnaz Khanehgir   +3 more
doaj   +1 more source

A study on the transmission dynamics of COVID-19 considering the impact of asymptomatic infection

open access: yesJournal of Biological Dynamics, 2023
The COVID-19 epidemic has been spreading around the world for nearly three years, and asymptomatic infections have exacerbated the spread of the epidemic.
Chuanqing Xu   +7 more
doaj   +1 more source

Transient Chaos in a Jerk System: Zero‐Hopf Bifurcation and Fractional Order Dynamics

open access: yesInternational Journal of Differential Equations, Volume 2026, Issue 1, 2026.
Transient chaos is a phenomenon in which chaotic dynamics persists for a finite time before transitioning to periodic or steady‐state behavior. TS has profound implications across disciplines, from neuroscience to quantum physics and machine learning. Recent studies have highlighted its role in crisis‐induced transitions, early‐time entanglement growth
Sarbast Hussein   +6 more
wiley   +1 more source

Fluid‐Retention Side‐Effects of the Chemotherapy‐Supportive Treatment Interleukin‐11: Mathematical Modelling of Putative Underlying Mechanisms

open access: yesComputational and Mathematical Methods in Medicine, Volume 7, Issue 2-3, Page 71-84, 2006., 2006
Interleukin‐11 (IL‐11) is a pleiotropic thrombopoietic cytokine and immune modulator, clinically approved for alleviation of chemotherapy‐induced thrombocytopenia in non‐myeloid malignancies. IL‐11 therapy exerts fluid accumulation‐associated adverse effects, complicating its administration and limiting its use.
Yuri Kheifetz   +3 more
wiley   +1 more source

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