Fitness landscape analysis (FLA) is quite important in evolutionary computation. In this paper, we propose a novel FLA method, the nearest-better network (NBN), which uses the nearest-better relationship to simplify t...
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Non-pharmaceutical interventions(NPIs)have been proven effective in reducing the spread of the coronavirus disease 2019(COVID-19),but their broader impact on gastrointestinal disorders remains poorly ***,we report an ...
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Non-pharmaceutical interventions(NPIs)have been proven effective in reducing the spread of the coronavirus disease 2019(COVID-19),but their broader impact on gastrointestinal disorders remains poorly ***,we report an observational analysis and retrospective study that compares the incidence of acute diarrheal diseases in Hangzhou,Zhejiang,China,between 2019 and 2020,with an examination of the antimicrobial resistance and genetic spectrum of non-typhoidal Salmonella(NTS)from 2015 to 2022,before and during the COVID-19 *** findings underscore that NPIs related to COVID-19 effectively reduced the incidence of acute diarrhea,with a substantial decrease in most enteric ***,NTS exhibited an unexpected *** genomic investigations of NTS isolates revealed an overall reduction in antimicrobial-resistant(AMR),disinfection-tolerant,and virulent capabilities,but with marked variations detected between human and animal *** genome-based analysis confirmed a decrease in the scale of zoonotic transmission in response to NPIs,suggesting particular NTS types may contribute to human infections via alternative *** collective findings manifested that COVID-19-related NPIs had a mixed impact on NTS infections,which may inform AMR NTS mitigation policy.
Quantum Hall systems host chiral edge states extending along the one-dimensional boundary of any two-dimensional sample. In solid state materials, the edge states serve as perfectly robust transport channels that prod...
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Quantum Hall systems host chiral edge states extending along the one-dimensional boundary of any two-dimensional sample. In solid state materials, the edge states serve as perfectly robust transport channels that produce a quantized Hall conductance; due to their chirality, and the topological protection by the Chern number of the bulk band structure, they cannot be spatially localized by defects or disorder. Here, we show experimentally that the chiral edge states of a lossy quantum Hall system can be localized. In a gyromagnetic photonic crystal exhibiting the quantum Hall topological phase, an appropriately structured loss configuration imparts the edge states’ complex energy spectrum with a feature known as point-gap winding. This intrinsically non-Hermitian topological invariant is distinct from the Chern number invariant of the bulk (which remains intact) and induces mode localization via the “non-Hermitian skin effect.” The interplay of the two topological phenomena—the Chern number and point-gap winding—gives rise to a non-Hermitian generalization of the paradigmatic Chern-type bulk-boundary correspondence principle. Compared to previous realizations of the non-Hermitian skin effect, the skin modes in this system have superior robustness against local defects and disorders.
Motivated by current sharing in power networks, we consider a class of output consensus (also called agreement) problems for nonlinear systems, where the consensus value is determined by external disturbances, e.g., p...
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Environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances re...
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Environmental pollution is escalating due to rapid global development that often prioritizes human needs over planetary *** global efforts to mitigate legacy pollutants,the continuous introduction of new substances remains a major threat to both people and the *** response,global initiatives are focusing on risk assessment and regulation of emerging contaminants,as demonstrated by the ongoing efforts to establish the UN’s Intergovernmental Science-Policy Panel on Chemicals,Waste,and Pollution *** review identifies the sources and impacts of emerging contaminants on planetary health,emphasizing the importance of adopting a One Health *** for monitoring and addressing these pollutants are discussed,underscoring the need for robust and socially equitable environmental policies at both regional and international *** actions are needed to transition toward sustainable pollution management practices to safeguard our planet for future generations.
The growing complexity of real-world systems necessitates interdisciplinary solutions to confront myriad challenges in modeling, analysis, management, and control. To meet these demands, the parallel systems method ro...
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We perform a Koopman spectral analysis of elementary cellular automata (ECA). By lifting the system dynamics using a one-hot representation of the system state, we derive a matrix representation of the Koopman operato...
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This paper addresses the abstract dynamic programming (DP) in the online scenario, where the abstract DP mapping is time-varying, instead of static. In this case, optimal costs and policies at different time instants ...
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This article studies a relatively new type of aerial platform: variable-pitch propeller (VPP) quadcopters. Unlike conventional fixed-pitch propellers that can only generate upward thrust forces, a VPP can adjust its p...
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Caenorhabditis elegans can generate locomotion under various environments with completely different drag levels. Therefore, animals should have strategies for adapting to the changes in the dynamics of locomotion impo...
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