Results 121 to 130 of about 23,444,297 (308)

A Generalized Template Framework for Constructing Exact Analytical Solutions to Various Nonlinear Partial Differential Equations

Mathematics
This paper introduces a unified analytical framework for solving a broad class of nonlinear partial differential equations by mapping them onto a fundamental second-order nonlinear template equation.
Alaaeddin Moussa, Boubekeur Gasmi, Lama Alhakim   +2 more
doaj   +1 more source

Expanding Genetic Code to Generate Human Brain Organoids with Both Vasculature and Microglia‐Like Cells

Advanced Science, EarlyView.
Using genetic code expansion, we engineered vascularized human cerebral organoids (vhCOs) with microglia‐like cells and blood‐brain barrier features. vhCOs recapitulate neurovascular interactions, regional identities, and neuronal subtypes resembling the fetal brain.
Haishuang Lin, Yaqing Wang, Hu Du, Yuxin Qin, Haoyu Zhang, Peng Wang, Lin Wei, Jianhua Qin   +7 more
wiley   +1 more source

Dynamical Analysis and Backstepping-Based Synchronization of a Fractional-Order Hyperchaotic Yan System Using RBF Neural Networks

Mathematical and Computational Applications
This paper explores the dynamic behavior and control of a novel 4D fractional-order hyperchaotic Yan system, characterized by transitions between stability, periodicity, and chaos, driven by fractional-order parameters and initial conditions.
Muhammad Ghulam Abbas Malik, Muhammad Asif, Zia Bashir   +2 more
doaj   +1 more source

Bifurcation Analysis and Rare Attractors in Parametrically Excited Pendulum Systems

An application of the new method of complete bifurcation groups (MCBG) in a parametrically excited pendulum system with additional linear restoring moment and with the periodically vibrating point of suspension in both directions is introduced ...
Klokovs, Aleksejs, Zakrževskis, Mihails
core  

Analysis of pattern dynamics for a nonlinear model of the human cortex via bifurcation theories [PDF]

, 2014
This thesis examines the bifurcations, i.e., the emergent behaviours, for the Waikato cortical model under the influence of the gap-junction inhibitory diffusion D₂ (identified as the Turing bifurcation parameter) and the time-to-peak for hyperpolarising
Wang, Kaier
core  

Mapping Embryonic Mouse Lung Development Using Enhanced Spatial Transcriptomics

Advanced Science, EarlyView.
The mammalian lung contains ∼50 cell types arranged along the airway epithelium. Here, deterministic barcoding sequencing (DBiT‐seq) is optimized to nearly double transcript recovery, enabling highly sensitive spatial mapping of the embryonic mouse lung.
Pengfei Zhang, Benjamin K. Law, Niles Huang, Katharine Goodwin, Celeste M. Nelson, Michelle M. Chan   +5 more
wiley   +1 more source

Upadacitinib Restrains the Pathogenic Fitness of CD4+ T Cells and Aberrant B Cell Programming in Optic Neuritis

Advanced Science, EarlyView.
Single‐cell profiling and functional perturbation reveal coordinated JAK1‐pSTAT3 downstream programs in optic neuritis, including MCL1‐dependent fitness of pathogenic CD4+ Tem cells and glycolysis‐linked, cholesterol‐sensitive B‐cell responses associated with RORA. Upadacitinib disrupts this reciprocal T‐B‐cell circuit and alleviates neuroinflammation,
Gengchen Jiang, Qi Jiang, Lian Han, Yue Peng, Xingyu Liu, Tong Yang, Hao Huang, Jiaying Liu, Yuan Gao, Hui Yang, Wenjun Zou, Zhaohuai Li, Wenru Su   +12 more
wiley   +1 more source

Existence of Bifurcation in Macroeconomic Dynamics: Grandmont was Right [PDF]

Grandmont (1985) found that the parameter space of the most classical dynamic general-equilibrium macroeconomic models are stratified into an infinite number of subsets supporting an infinite number of different kinds of dynamics, from monotonic ...
Yijun He, William Barnett
core  

Subcritical Hopf bifurcations in a car-following model with reaction-time delay [PDF]

, 2005
A nonlinear car-following model of highway traffic is considered, which includes the reaction-time delay of drivers. Linear stability analysis shows that the uniform flow equilibrium of the system loses its stability via Hopf bifurcations and thus ...
Orosz, G, Stepan, G
core  

Macrophage Dab1 Links Early Hypoxia to Adaptive Angiogenesis to Drive Peripheral Nerve Repair

Advanced Science, EarlyView.
Schematic diagram illustrating the Dab1‐linked hypoxia signaling pathway that accelerates angiogenesis and consequent nerve regeneration. Following PNI, a hypoxic microenvironment develops. Hypoxia induces macrophage Dab1 phosphorylation, resulting in NHE‐1 upregulation, HIF‐1α stabilization, and VEGF‐A expression. This cascade promotes angiogenesis in
Xiongyao Zhou, Fan Zhang, Jiangbo Wang, Huiyuan Wang, Zongqiang Wang, Qianqian Wang, Chuikai Meng, Jialu Sun, Han Wang, Weiye Li, Ziyi Zhao, Le Qi, Xiaosong Gu, Shusen Cui, Rangjuan Cao   +14 more
wiley   +1 more source