Results 111 to 120 of about 2,370,896 (311)

Spontaneous Spin Bifurcations and Ferromagnetic Phase Transitions in a Spinor Exciton-Polariton Condensate

Physical Review X, 2015
We observe a spontaneous parity breaking bifurcation to a ferromagnetic state in a spatially trapped exciton-polariton condensate. At a critical bifurcation density under nonresonant excitation, the whole condensate spontaneously magnetizes and randomly ...
H. Ohadi, A. Dreismann, Y. G. Rubo, F. Pinsker, Y. del Valle-Inclan Redondo, S. I. Tsintzos, Z. Hatzopoulos, P. G. Savvidis, J. J. Baumberg   +8 more
doaj   +1 more source

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

A Bifurcation Dynamical Analysis of a Non-Darcy Seepage System in Post-Failure Rock Based on a Novel Truncated Spectral Method

Processes
This paper investigates the dynamic behavior of non-Darcy seepage systems in post-failure rock. A one-dimensional non-Darcy seepage evolution equation is established, and a 6-dimensional nonlinear ordinary differential system is derived via the spectral ...
Zheng-Zheng Cao, Chenxi Miao, Feng Du, De-Sheng Zhu, Teng Teng, Yi Xue   +5 more
semanticscholar   +1 more source

On the quasi-periodic d-fold degenerate bifurcation [PDF]

, 2005
This paper analyses the d-fold degenerate bifurcation of invariant quasi-periodic tori of normal dimension one. It is shown that for integrable families of diffeomorphisms unfolding a d-fold degenerate invariant torus versally, invariant Diophantine tori
Wagener, Florian
core   +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

A Continuous Time Bertrand Duopoly Game With Fractional Delay and Conformable Derivative: Modeling, Discretization Process, Hopf Bifurcation, and Chaos

Frontiers in Physics, 2019
The purpose of this paper is three-fold. First, we present a discretization process to obtain numerical solutions of a conformable fractional-order system with delays. Second, we extend the classical Bertrand duopoly game with integer delays to that with
Baogui Xin, Wei Peng, Luca Guerrini
doaj   +1 more source

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

Endowing Flexibility of Alveolar Type II Cells to Recapitulate Development From Lung Bud to Alveoli

Advanced Science, EarlyView.
Adult human alveolar type 2 cells are chemically reprogrammed into expandable alveolar progenitor‐like cells that acquire bud tip‐like features during expansion and form organoids that mature into alveolar‐like structures. These organoids model influenza A virus infection and innate immune responses in vitro, while transplanted cells engraft ...
Hongqian Ma, Yuxin Zhang, Lujia Sun, Hong Jiang, Fan Li, Wenming Liu, Shenao Zhou, Mengting Wang, Weijian Huang, Xu Zhou, Caiyang Chen, Qiuqiu Zhang, Xiaoyan Jin, Feihan Yan, Hongping Wu, Yonghong Yin, Xinling Wang, Hexin Yan, Weifeng Yu   +18 more
wiley   +1 more source

The Dynamics of a Predator-Prey System with State-Dependent Feedback Control

Abstract and Applied Analysis, 2012
A Lotka-Volterra-type predator-prey system with state-dependent feedback control is investigated in both theoretical and numerical ways. Using the Poincaré map and the analogue of the Poincaré criterion, the sufficient conditions for the existence and ...
Hunki Baek
doaj   +1 more source

The evasion of tipping: Pattern formation near a Turing-fold bifurcation

Physica D: Nonlinear Phenomena
Model studies indicate that many climate subsystems, especially ecosystems, may be vulnerable to 'tipping': a 'catastrophic process' in which a system, driven by gradually changing external factors, abruptly transitions (or 'collapses') from a preferred state to a less desirable one.
Staal, Dock, Doelman, Arjen
openaire   +2 more sources