A5100373213- Nonlinear Differential Equations Analysis
- Differential Equations and Numerical Methods
- Nonlinear Partial Differential Equations
- Mathematical and Theoretical Epidemiology and Ecology Models
- Advanced Differential Equations and Dynamical Systems
- Fractional Differential Equations Solutions
- Quantum chaos and dynamical systems
- Differential Equations and Boundary Problems
- Nonlinear Dynamics and Pattern Formation
- Mosquito-borne diseases and control
- Evolution and Genetic Dynamics
- Nonlinear Waves and Solitons
- Malaria Research and Control
- stochastic dynamics and bifurcation
- Neural Networks Stability and Synchronization
- Advanced Optimization Algorithms Research
- Ectopic Pregnancy Diagnosis and Management
- Reproductive Biology and Fertility
- Optimization and Mathematical Programming
- Ideological and Political Education
- Advanced Mathematical Physics Problems
- Stochastic processes and financial applications
- Maternal and fetal healthcare
- Environmental and Agricultural Sciences
- Regional Economic and Spatial Analysis
Jiangxi University of Traditional Chinese Medicine
2021-2024
Hunan Agricultural University
2011-2023
Xi'an Technological University
2023
Zhengzhou University
2021
Center for Biologics Evaluation and Research
2015-2020
United States Food and Drug Administration
2020
Chinese Preventive Medicine Association
2020
Fujian Medical University
2020
Fujian Provincial Hospital
2020
Soochow University
2019
Aging-associated cognitive dysfunction has a great influence on the lifespan and healthspan of elderly. Theaflavins (TFs), mixture ingredients formed from enzymatic oxidation catechins during manufacture tea, have positive contribution to qualities antiaging activities black tea. However, role TFs in mitigating aging-induced underlying mechanism remains largely unknown. Here, we find that effectively improve behavioral impairment via microbiota-gut-brain axis: maintain gut homeostasis by...
In this paper the Bogdanov-Takens (BT) bifurcation of an 2m coupled neurons network model with multiple delays is studied, where one neuron excitatory and next inhibitory.When origin has a double zero eigenvalue, by using center manifold reduction delay differential equations (DDEs), second-order third-order universal unfoldings normal forms are deduced, respectively.Some diagrams numerical simulations presented to verify our main results.
The Hopf cyclicity of nonsmooth Liénard systems on the plane is studied and an algebraic method to find presented. A sufficient necessary condition which ensures origin being a center obtained. Some new interesting applications are
An outbreak of severe pneumonia unknown cause was reported in December 2019 Wuhan, Hubei province, China. The infectious virus soon identified and named as novel coronavirus (2019-nCoV). name the COVID-19 given by WHO on 11 February 2020. It has so far caused about 118 000 cases 114 countries including China ending March 10, characterized a pandemic 11. We still face great challenges control epidemic: uncertain initial source infection, infected populations widely scattered, complex routs...
Background: To evaluate the efficacy, safeness and cost of ultrasound-guided local lauromacrogol injection (USG-LLI) combined with curettage hysteroscopy for cesarean scar pregnancy (CSP). Methods: This was a retrospective study included 151 CSP patients diagnosed from June 2017 to December 2019, treated by USG-LLI ( n = 86) or uterine artery embolization (UAE) 65) hysteroscopy. Clinical data outcome were analyzed. Results: There no significant differences in basic clinical characteristics...
The mobility in cognitive vehicular network can deeply influence the percentage of discovered spectral opportunities while existing spectrum sensing algorithms often assume secondary users stationary or with low mobility. In order to investigate impact on SU detection probability, spatial-temporal model is extended account for effects and mathematical analysis capacity highway urban scenarios are carried out. achievable jointly temporal spatial domains introduced measure expected...
By using the critical point method, some new criteria are obtained for existence and multiplicity of periodic solutions fourth‐order nonlinear functional difference equations. The proof is based on linking theorem in combination with variational technique. Recent results literature generalized significantly improved. Copyright © 2013 John Wiley & Sons, Ltd.
By making use of the critical point theory, existence periodic solutions for fourth-order nonlinear difference equations is obtained. The proof based on Saddle Point Theorem in combination with variational technique. problem to solve equations. Results obtained complement existing one.
A predator prey system with Holling III functional response and constant refuge is considered. By using the Dulac criterion, we discuss global stability of positive equilibrium system. transforming to a Liénard system, conditions for existence exactly one limit cycle are given. Some numerical simulations presented.
Preventing Chronic Disease (PCD) is a peer-reviewed electronic journal established by the National Center for Prevention and Health Promotion. PCD provides an open exchange of information knowledge among researchers, practitioners, policy makers, others who strive to improve health public through chronic disease prevention.
In this paper, the Bogdanov–Takens (B–T) and triple zero bifurcations are investigated for coupled van der Pol–Duffing oscillators with [Formula: see text] symmetry, in presence of time delays due to intrinsic response coupling. Different from previous works, third order unfolding normal forms associated B–T needed, which obtained by using form theory delay differential equations. Numerical simulations also presented illustrate theoretical results.
To better understand anti-malaria protective immune responses, we examined the cellular mechanisms that govern immunity in a murine Plasmodium yoelii 17X NL (PyNL) re-infection model. Initially, confirmed B cells generated during primary PyNL infection were largely responsible for protection from second infection. Using previously identified memory cell markers CD80, PD-L2, and CD73, found an increase frequency of CD80-PD-L2-CD73+ up to 55 days after at 4-6 following Moreover, injection...
In this paper, a fourth-order nonlinear difference equation is considered. By making use of the critical point theory, we establish various sets sufficient conditions for existence and nonexistence solutions Neumann boundary value problem give some new results. Results obtained generalize complement existing ones.