Results 101 to 110 of about 1,819 (220)

Abnormal Brain Structural Covariance Networks of Cortical Thickness in Cocaine Use Disorder

Addiction Biology, Volume 31, Issue 7, July 2026.
Cocaine use disorder (CUD) disrupts large‐scale brain network coordination. Using structural covariance network analysis, we found reduced local clustering, impaired rich‐club connectivity, and a shift toward lattice‐like organization in CUD patients, while global network robustness remained preserved. These findings reveal a dissociation between local
Linkai Chen, Youling Li, Jie Chen, Junshen Zhang, Xinyu Ma, Qiuling Cai, Guanghui Bai, Meimei Du   +7 more
wiley   +1 more source

Photoinduced Topological Phase Transitions in Topological Magnon Insulators [PDF]

Scientific Reports, 2018
AbstractTopological magnon insulators are the bosonic analogs of electronic topological insulators. They are manifested in magnetic materials with topologically nontrivial magnon bands as realized experimentally in a quasi-two-dimensional (quasi-2D) kagomé ferromagnet Cu(1–3, bdc), and they also possess protected magnon edge modes.
openaire   +3 more sources

On Local Aspects of Topological Transitivity and Weak Mixing in Set-Valued Discrete Systems

Discrete Dynamics in Nature and Society, 2013
Blanchard and Huang introduced the notion of weakly mixing subset, and Oprocha and Zhang gave the concept of transitive subset and studied its basic properties. In this paper our main goal is to discuss the weakly mixing subsets and transitive subsets in
Lei Liu
doaj   +1 more source

Evolution and Conceptual Insights into the Geometric Phase of Light: A Comprehensive Review

Advanced Photonics Research, Volume 7, Issue 6, June 2026.
This review presents a unified account of the geometric phase of light, linking its fundamental principles to diverse manifestations in polarization, spatial, and vector modes. By connecting theoretical frameworks with key experimental realizations, it reveals a coherent physical picture that deepens understanding and stimulates new directions in ...
A. Srinivasa Rao
wiley   +1 more source

Altered Dorsolateral Prefrontal Activation in Response to Verbal Fluency Task and Whole‐Brain Resting‐State Functional Connectivity Strength in Acute Carbon Monoxide Poisoning

Brain and Behavior, Volume 16, Issue 6, June 2026.
The centroid values of the oxyhemoglobin (Oxy‐Hb) curve in the left dorsolateral prefrontal cortex during the verbal fluency test (VFT) may serve as potential neurofunctional biomarkers in patients with acute carbon monoxide (CO) poisoning. ABSTRACT Objective The study aims to investigate changes in brain activity during the verbal fluency task (VFT ...
Jian‐Qing Pan, Qun‐Jun Liang, Ming‐Xing Tang, Lian Duan, Qing‐Ping Zhang   +4 more
wiley   +1 more source

Characterization of neighborhood operators based on neighborhood relationships

Journal of Intelligent Systems
Neighborhood relationships play a pivotal role in rough set theory, addressing the limitations of equivalence relations. This article focuses on defining upper and lower approximation operators using neighborhood relationships and exploring their ...
Caixin Wei, Pei Wang, Rongrong Xu, Wanyuan Huang   +3 more
doaj   +1 more source

Relationships among Various Chaos for Linear Semiflows Indexed with Complex Sectors

Mathematics
In this paper, we investigate the relationships among point transitivity, topological transitivity, Li–Yorke chaos, and the existence of irregular vectors for a linear semiflow {Tt}t∈Δ indexed with a complex sector.
Shengnan He, Xin Liu, Zongbin Yin, Xiaoli Sun   +3 more
doaj   +1 more source

Optimizing the Collaborative Supply Scheduling of Renewable Energy in the Tourism Industry Chain Using Graph Neural Networks

Engineering Reports, Volume 8, Issue 6, June 2026.
Typical configuration of Huangshan Scenic Area. ABSTRACT To cope with the supply and demand imbalance challenge caused by the surge in energy demand in tourism‐intensive areas and the high volatility of renewable energy, this paper aims to construct a collaborative scheduling optimization model based on graph neural networks (GNNs). The model abstracts
Lixia Wang
wiley   +1 more source

The Glass Transition: A Topological Perspective

Entropy
Resorting to microcanonical ensemble Monte Carlo simulations, we study the geometric 1 and topological properties of the state space of a model of network glass-former. This model, a 2 Lennard-Jones binary mixture, does not crystallize due to frustration.
Vesperini, Arthur, Franzosi, Roberto, Pettini, Marco   +2 more
openaire   +5 more sources

Parry’s topological transitivity and 𝑓-expansions [PDF]

Proceedings of the American Mathematical Society, 2015
In his 1964 paper on f f -expansions, Parry studied piecewise- continuous, piecewise-monotonic maps
openaire   +3 more sources