Results 91 to 100 of about 17,630 (186)

Relationships among Various Chaos for Linear Semiflows Indexed with Complex Sectors

open access: yesMathematics
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   +3 more
doaj   +1 more source

Fast and Slow Signal Propagation in Abiotic Polypeptide Assemblies

open access: yesChemBioChem, Volume 27, Issue 6, 27 March 2026.
Proteinoid microspheres formed by thermal polymerization of amino acids exhibit spontaneous electrical potential fluctuations without genetic material, membranes, or ion channels. Multi‐electrode recordings and electron microscopy reveal composition‐dependent voltage oscillations, long‐term drifts, and correlated signals across electrodes.
Panagiotis Mougkogiannis   +1 more
wiley   +1 more source

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

open access: yesProceedings of the American Mathematical Society, 2015
In his 1964 paper on f-expansions, Parry studied piecewise-continuous, piecewise-monotonic maps F of the interval [0,1), and introduced a notion of topological transitivity different from any of the modern definitions. This notion, which we call Parry topological transitivity, (PTT) is that the backward orbit O^-(x)={y:x=F^ny for some n\ge 0} of some x\
openaire   +3 more sources

Dynamic Reconfiguration of Functional Topology in Human Brain Networks: From Resting to Task States

open access: yesNeural Plasticity, 2020
Task demands evoke an intrinsic functional network and flexibly engage multiple distributed networks. However, it is unclear how functional topologies dynamically reconfigure during task performance. Here, we selected the resting- and task-state (emotion
Wenhai Zhang   +3 more
doaj   +1 more source

Interpreting Microbiome Signatures with MicrobiomeNet

open access: yesCurrent Protocols, Volume 6, Issue 3, March 2026.
Abstract MicrobiomeNet (https://microbiomenet.com) is a web‐based platform developed to provide functional insights into microbiome signatures using genome‐scale metabolic models (GEMs). It currently hosts 12,400 GEMs and around 6 million microbial signatures.
Yao Lu, Khoi Nguyen Nguyen, Jianguo Xia
wiley   +1 more source

An Improved Chaotic Motion Path Planner for Autonomous Mobile Robots Based on a Logistic Map

open access: yesInternational Journal of Advanced Robotic Systems, 2013
This paper presents a chaotic motion path planner based on a Logistic Map (SCLCP) for an autonomous mobile robot to cover an unknown terrain randomly, namely entirely, unpredictably and evenly.
Caihong Li   +4 more
doaj   +1 more source

Energy‐aware flexible job shop scheduling problem with nonlinear routes and position‐based learning effect

open access: yesInternational Transactions in Operational Research, Volume 33, Issue 2, Page 860-891, March 2026.
Abstract Sustainability has become one of the main objectives in all human activities and, in particular, in manufacturing environments. In this paper, we consider the flexible job shop scheduling problem with the objective of minimizing energy consumption.
Ernesto G. Birgin   +2 more
wiley   +1 more source

Scaling theory of topological phase transitions [PDF]

open access: yesJournal of Physics: Condensed Matter, 2016
6 pages, 3 ...
openaire   +3 more sources

A topological approach to the Arrow impossibility theorem when individual preferences are weak orders (forcoming in ``Applied Mathematics and Compuation''(Elsevier)) [PDF]

open access: yes
We will present a topological approach to the Arrow impossibility theorem of social choice theory that there exists no binary social choice rule (which we will call a social welfare function) which satisfies the conditions of transitivity, independence ...
Yasuhito Tanaka
core  

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