Results 21 to 30 of about 711,618 (267)
Applied General Topology, 2008 A ballean is a set endowed with some family of balls in such a way that a ballean can be considered as an asymptotic counterpart of a uniform topological space. We introduce and study a new cardinal invariant called the spread of a ballean. In particular,
Mahmoud Filali, Igor V. Protasov
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Scientific Reports, 2023 The COVID-19 pandemic has caused significant disruptions to the daily lives of individuals worldwide, with many losing their lives to the virus. Vaccination has been identified as a crucial strategy to combat the spread of a disease, but with a limited ...
Amir Sheikhahmadi +2 more
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PLoS ONE, 2022 BackgroundThe influence of human mobility to the domestic spread of COVID-19 in Japan using the approach of effective distance has not yet been assessed.MethodsWe calculated the effective distance between prefectures using the data on laboratory ...
Yasuhiro Nohara, Toshie Manabe
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Human Vaccines & Immunotherapeutics, 2021 Human coronaviruses (HCoVs) are associated with a range of respiratory complications. In the last two decades, three major outbreaks have been reported due to HCoVs including the current pandemic.
Fazal Mehmood Khan +5 more
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Informatics in Medicine Unlocked, 2022 The current work aims to design a computational framework based on artificial neural networks (ANNs) and the optimization procedures of global and local search approach to solve the nonlinear dynamics of the spread of COVID-19, i.e., the SEIR-NDC model ...
Thongchai Botmart +6 more
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Irreversible k-threshold conversion number of some graphs [PDF]
Arab Journal of Mathematical SciencesPurpose – This paper aims to study Irreversible conversion processes, which examine the spread of a one way change of state (from state 0 to state 1) through a specified society (the spread of disease through populations, the spread of opinion through ...
Ramy Shaheen, Suhail Mahfud, Ali Kassem
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Total Frequency Spread: A New Metric to Assess the Switching Frequency Spread of FCS-MPC
Energies, 2022 This work proposes a metric to assess the spread of the switching frequency profile of power converters, focusing on Finite Control Set-Model-Predictive-Control (FCS-MPC)-based converters, and analyses the effect of the filter sizing, sampling period ...
Thiago Tricarico +5 more
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Sets, heads and spreading in LFG
Journal of Language Modelling, 2018 Lexical Functional Grammar (LFG) uses abstract syntactic representation (f-structures) that tend to provide less hierarchical structure for certain constructions than those employed in other formal frameworks. This produces some good results, such as a very straightforward account of feature-sharing between phrases and their heads, but also certain ...
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Dihedral and Quaternion Autotopism Subgroups of Semifield Projective Planes of Order $p^4$
Известия Иркутского государственного университета: Серия "Математика"Dihedral and Quaternion Autotopism Subgroups of Semifield Projective Planes of Order $p^4$}In 1959, D.R.~Hughes conjecture that the full collineation group of any finite non-Desarguesian semifield projective plane is solvable (see also the question 11.76
O. V. Kravtsova, D. S. Skok
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Manipulating concept spread using concept relationships. [PDF]
PLoS ONE, 2018 The propagation of concepts in a population of agents is a form of influence spread, which can be modelled as a cascade from a set of initially activated individuals.
James Archbold, Nathan Griffiths
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