Results 91 to 100 of about 152,071 (342)

Perturbed bifurcation theory

Journal of Differential Equations, 1979
INTRODUCTION Imperfection-sensivity theory for structures has been the subject of many studies for some fifteen years [3][11][16]. I n mathematical terms, this theory leads to problems of perturbed bifurcation. In this respect, the British School [16][17] has studied systems with a finite number of degrees of freedom.
openaire   +2 more sources

Neuroprotective Nanoplatform Integrating Antioxidant MXene Nanozymes and Ferroptosis Inhibitors for Targeted Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
Cerebral ischemia‐reperfusion injury (CIRI) is a key pathological process limiting the efficacy of stroke therapy. This study has developed an innovative, multifunctional, brain‐targeted nanoplatform (RFP) containing MXene nanoenzymes and ferroptosis inhibitors.
Lu Wang, Chao Hou, Shuo Li, Lizhi Yang, Yiqun Lin, Sen Wang, Xiaohua Jia, Hui Hui, Wen He, Wei Zhang   +9 more
wiley   +1 more source

Bifurcation Analysis in Population Genetics Model with Partial Selfing

Abstract and Applied Analysis, 2013
A new model which allows both the effect of partial selfing selection and an exponential function of the expected payoff is considered. This combines ideas from genetics and evolutionary game theory.
Yingying Jiang, Wendi Wang
doaj   +1 more source

TP53BP2 Promotes Placental Autophagy and Preeclampsia via G9a and DNMT1 Cooperatively Modulating E2F1

Advanced Science, EarlyView.
G9a, and DNA Methyltransferase1 (DNMT1) cooperatively modulates E2F1 on the promoter of tumor suppressor p53‐binding protein 2 (TP53BP2) increased autophagy in preeclampsia. TP53BP2 promotes autophagy in trophoblasts through DNA methylation and H3K9me2‐mediated transcriptional regulation.
Nan Jiang, Shaoju Jin, Shaoying Wen, Wen Zeng, Chen Wang, Jingyu Wang, Qingyun Song, Guizhong Li, Pengzhi Yin, Yuhui Liao, Yuee Chai, Huiping Zhang, Shengchao Ma   +12 more
wiley   +1 more source

Dynamic Design of a Quad-Stable Piezoelectric Energy Harvester via Bifurcation Theory. [PDF]

Sensors (Basel), 2022
Zhang Q, Yan Y, Han J, Hao S, Wang W.
europepmc   +1 more source

SLPI⁺ AT2‐Like Cells Orchestrate Lung Adenocarcinoma Invasion via Wnt Pathway Activation and Stromal Crosstalk in a Spatially Defined Margin Niche

Advanced Science, EarlyView.
Integrating spatial transcriptomics and single‐cell RNA sequencing, this study identifies a novel subpopulation of SLPI⁺ AT2‐like cells at the invasive margin of lung adenocarcinoma (LUAD). These cells, through stromal crosstalk and Wnt pathway activation, promote tumor stemness and invasion.
Zhoufeng Wang, Guonian Zhu, Pan Tang, Yan Wang, Wenxin Luo, Wenpeng Song, Zhikang Pan, Bingjie Zheng, YongChao Jiang, Defu Xiao, Xin Jin, Yong Bai, Guowei Che, Weimin Li   +13 more
wiley   +1 more source

Neimark–Sacker bifurcation and stability analysis of a discrete-time prey–predator model with Allee effect in prey

Advances in Difference Equations, 2019
In this paper, the dynamical behaviors of a discrete-time prey–predator model with Allee effect on the prey population are investigated. The existence and topological classification of the fixed points of the model are analyzed.
Figen Kangalgil
doaj   +1 more source

SETDB2 Mitigates Podocyte Dysfunction in Diabetic Kidney Disease Through Epigenetic Silencing of SMAD3

Advanced Science, EarlyView.
SETDB2 epigenetically represses Smad3 transcription by increasing H3K9me3 enrichment at its promoter, thereby mitigating podocyte dysfunction in DKD. The transcription factor TCF21 binds directly to the Setdb2 promoter and enhances its expression in podocytes. Abstract Podocyte dysfunction represents both an early pathological hallmark and a key driver
Lanfang Li, Shimin Jiang, Qi Jin, Peng Qu, Yingjie Guo, Xushan Lan, Xinyu Li, Cuiting Sun, Sinan Ai, Xin Li, Weiliang Sun, Jing Guo, Wenge Li, Liang Peng, Lihong Liu   +14 more
wiley   +1 more source

Morishima's nonlinear model of the cycle: simplifications and generalizations [PDF]

business cycles,nonlinear dynamics,endogenous cucles,bifurcation ...
K. Vela Velupillai
core  

The generic unfolding of a codimension-two connection to a two-fold singularity of planar Filippov systems

, 2017
Generic bifurcation theory was classically well developed for smooth differential systems, establishing results for $k$-parameter families of planar vector fields.
Novaes, Douglas Duarte, Teixeira, Marco Antonio, Zeli, Iris de Oliveira   +2 more
core   +1 more source