Results 41 to 50 of about 4,906,655 (367)

New Interaction Solutions of (3+1)-Dimensional KP and (2+1)-Dimensional Boussinesq Equations

open access: yesAbstract and Applied Analysis, 2015
The consistent tanh expansion (CTE) method has been succeeded to apply to the nonintegrable (3+1)-dimensional Kadomtsev-Petviashvili (KP) and (2+1)-dimensional Boussinesq equations.
Bo Ren, Jun Yu, Xi-Zhong Liu
doaj   +1 more source

A Review on a Class of Second Order Nonlinear Singular BVPs

open access: yesMathematics, 2020
Several real-life problems are modeled by nonlinear singular differential equations. In this article, we study a class of nonlinear singular differential equations, explore its various aspects, and provide a detailed literature survey. Nonlinear singular
Amit K. Verma   +3 more
doaj   +1 more source

Nonlinear spillover effect of us monetary policy uncertainty on China’s systematic financial risks

open access: yesJournal of Business Economics and Management, 2022
Monetary policy uncertainty (MPU) not only imposes a great impact on the systematic financial risks of a country but also generates a significant spillover effect on countries having close economic exchanges with the former under the background of global
Zhigang Ouyang   +3 more
doaj   +1 more source

Behavior of strengthened concrete beams damaged by thermal shock [PDF]

open access: yesИнженерно-строительный журнал, 2020
In the last two decades, using of Carbon Fiber Reinforced Polymers (CFRP) in strengthening of deficient reinforced concrete structural elements has been increased due to their ease of installation, low invasiveness, high corrosion resistance, and high ...
R. Al-Rousan
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Modified Function Projective Synchronization of Financial Hyperchaotic Systems via Adaptive Impulsive Controller with Unknown Parameters

open access: yesDiscrete Dynamics in Nature and Society, 2015
Modified function projective synchronization via adaptive impulsive controller between two different financial hyperchaotic systems is investigated, where the external uncertainties are considered. The updated laws of the unknown parameters are given and
Guoliang Cai   +3 more
doaj   +1 more source

Simulation Study on the Influence of Multifrequency Ultrasound on Transient Cavitation Threshold in Different Media

open access: yesApplied Sciences, 2020
Through the introduction of multifrequency ultrasound technology, remarkable results have been achieved in tissue ablation and other aspects.
Hu Dong, Xiao Zou, Shengyou Qian
doaj   +1 more source

Gender Matters: Nonlinear Relationships Between Heart Rate Variability and Depression and Positive Affect

open access: yesFrontiers in Neuroscience, 2021
Vagally mediated heart rate variability (vmHRV), a measure of the parasympathetic nervous system’s control over the heart, is often negatively related to maladaptive emotional outcomes.
Derek P. Spangler   +11 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Epilepsy Diagnosis Analysis via a Multiple-Measures Composite Strategy from the Viewpoint of Associated Network Analysis Methods

open access: yesApplied Sciences
Based on some typical complex network analysis methods and machine learning techniques, a general multiple-measures composited strategy-guided epilepsy diagnosis analysis framework is proposed in this brief paper.
Haoying Niu   +4 more
doaj   +1 more source

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