Results 71 to 80 of about 33,473 (203)

A Virtual Clinical Trial of Psychedelics to Treat Patients With Disorders of Consciousness

Advanced Science, Volume 13, Issue 11, 23 February 2026.
Disorders of consciousness after severe brain injury are marked by reduced complexity of brain activity and limited treatment options. Using personalized whole‐brain models, this study shows that simulated lysergic acid diethylamide (LSD) and psilocybin shift patient brain dynamics closer to criticality.
Naji L.N. Alnagger, Paolo Cardone, Charlotte Martial, Yonatan Sanz Perl, Iván Mindlin, Jacobo D Sitt, Leor Roseman, Robin Carhart‐Harris, David Nutt, Pablo Mallaroni, Natasha Mason, Johannes G Ramaekers, Vincent Bonhomme, Steven Laureys, Gustavo Deco, Olivia Gosseries, Pablo Núñez, Jitka Annen   +17 more
wiley   +1 more source

Hopf Bifurcation Control in a FAST TCP and RED Model via Multiple Control Schemes

Journal of Control Science and Engineering, 2016
We focus on the Hopf bifurcation control problem of a FAST TCP model with RED gateway. The system gain parameter is chosen as the bifurcation parameter, and the stable region and stability condition of the congestion control model are given by use of the
Dawei Ding, Chun Wang, Lianghui Ding, Nian Wang, Dong Liang   +4 more
doaj   +1 more source

Degenerate Hopf bifurcation in a Leslie–Gower predator–prey model with predator harvest

Advances in Difference Equations, 2020
In this paper, we investigate the degenerate Hopf bifurcation of a Leslie–Gower predator–prey system with predator harvest. The known work discussed the Hopf bifurcation of this system when the first Lyapunov number does not vanish and gave an example of
Juan Su
doaj   +1 more source

Population Dynamic Study of Prey-Predator Interactions with Weak Allee Effect, Fear Effect, and Delay

Journal of Mathematics, 2022
In this study, a predator-prey model with the Allee effect and fear effect is established. We use the comparison principle to prove boundedness. The zero equilibrium point and nonzero equilibrium point of the model are calculated, and the local stability
Ye Xuan Li, Hua Liu, Yu Mei Wei, Ming Ma, Gang Ma, Jing Yan Ma   +5 more
doaj   +1 more source

Mathematical Modeling of Forest Biomass Dynamics: A Focus on Seedling Contribution in Case of Wonsho Woreda (Kileye and Gishere), Sidama Regional State, Ethiopia

Natural Resource Modeling, Volume 39, Issue 1, February 2026.
ABSTRACT In this study, we introduce a mathematical ecology model that describes the interactions among forest biomass, the human population, various development activities, and seedlings. The study applies modified Leslie‐Gower and Holling type II functional responses to capture these interactions.
Shegena Geshele Donka, Mohammed Yiha Dawed, Kiros Gebrearegawi Kebedow   +2 more
wiley   +1 more source

Hopf bifurcation analysis in a fractional-order survival red blood cells model and PD α $\mathit{PD}^{\alpha} $ control

Advances in Difference Equations, 2018
In this paper, we put forward a fractional-order survival red blood cells model and study the dynamics through the Hopf bifurcation. When the delay transcends the threshold, a series of Hopf bifurcations occur at the positive equilibrium.
Qingshan Sun, Min Xiao, Binbin Tao, Guoping Jiang, Jinde Cao, Fuchen Zhang, Chengdai Huang   +6 more
doaj   +1 more source

Hopf bifurcation control for the main drive delay system of rolling mill

Advances in Difference Equations, 2020
In this work, the Hopf bifurcation of the main drive delay system of rolling mill is controlled and analyzed by designing a nonlinear controller. The time-delay is selected as a bifurcation parameter, and the following conclusions are obtained through ...
Jinbin Wang, Lifeng Ma, Yong Wang
doaj   +1 more source

Well‐Posedness and Pattern Formation in a Two‐Species Reaction–Diffusion System with Nonlocal Perception

Studies in Applied Mathematics, Volume 156, Issue 2, February 2026.
ABSTRACT Nonlocal perceptual cues, such as visual, auditory, and olfactory signals, profoundly influence animal movement and the emergence of ecological patterns. To capture these effects, we introduce a two‐species reaction–diffusion system with mutual nonlocal perception on a two‐dimensional periodic domain.
Yaqi Chen, Ben Niu, Hao Wang
wiley   +1 more source

Maxwell Fronts in the Discrete Nonlinear Schrödinger Equations With Competing Nonlinearities

Studies in Applied Mathematics, Volume 156, Issue 2, February 2026.
ABSTRACT In discrete nonlinear systems, the study of nonlinear waves has revealed intriguing phenomena in various fields such as nonlinear optics, biophysics, and condensed matter physics. Discrete nonlinear Schrödinger (DNLS) equations are often employed to model these dynamics, particularly in the context of Bose–Einstein condensates and optical ...
Farrell Theodore Adriano, Hadi Susanto
wiley   +1 more source

Permanence and Hopf bifurcation of a delayed eco-epidemic model with Leslie–Gower Holling type III functional response

Systems Science & Control Engineering, 2019
This paper is concerned with a delayed eco-epidemic model with a Leslie–Gower Holling type III functional response. The main results are given in terms of permanence and Hopf bifurcation.
Zi Zhen Zhang, Chun Cao, Soumen Kundu, Ruibin Wei   +3 more
doaj   +1 more source