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Risk factors associated with COVID-19 infection among Chinese elite athletes during overseas training and competitions: a large-scale cross-sectional survey [PDF]
Frontiers in Public HealthObjectiveTo analyze COVID-19 infection incidence and risk factors among Chinese national team members during overseas training and competitions (April–October 2022) to inform prevention for international events.MethodsA nationwide cross-sectional survey ...
Jun Chen +5 more
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Irregularity and Modular Irregularity Strength of Wheels
Mathematics, 2021 It is easily observed that the vertices of a simple graph cannot have pairwise distinct degrees. This means that no simple graph of the order of at least two is, in this way, irregular. However, a multigraph can be irregular.
Martin Bača +2 more
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Edge irregular reflexive labeling on sun graph and corona of cycle and null graph with two vertices
Indonesian Journal of Combinatorics, 2021 Let G(V,E) be a simple and connected graph which set of vertices is V and set of edges is E. Irregular reflexive k-labeling f on G(V,E) is assignment that carries the numbers of integer to elements of graph, such that the positive integer {1,2, 3,...,ke}
Irfan Setiawan, Diari Indriati
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On Face Irregular Evaluations of Plane Graphs
Discussiones Mathematicae Graph Theory, 2022 We investigate face irregular labelings of plane graphs and we introduce new graph characteristics, namely face irregularity strength of type (α,β,γ). We obtain some estimation on these parameters and determine the precise values for certain families of ...
Bača Martin +3 more
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Enhanced Density Peak-Based Power Grid Reactive Voltage Partitioning
Energies, 2023 Clustering-based reactive voltage partitioning is successful in reducing grid cascading faults, by using clustering methods to categorize different power-consuming entities in the power grid into distinct regions.
Xingye Deng +5 more
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BMC Medical Research Methodology, 2023 Clinical information collected in electronic health records (EHRs) is becoming an essential source to emulate randomized experiments. Since patients do not interact with the healthcare system at random, the longitudinal information in large observational
Sumeet Kalia +4 more
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Studies in African Linguistics, 2010 In his book on gender Corbett observes that establishing the number of genders or noun classes in a given language ‘can be the subject of interminable dispute’ (1991: 145). Jóola like Gújjolaay Eegimaa (bqj, Atlantic, Niger-Congo) have noun class systems
Serge Sagna
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Estimating Heterogeneous Causal Effects in the Presence of Irregular Assignment Mechanisms [PDF]
2018 IEEE 5th International Conference on Data Science and Advanced Analytics (DSAA), 2018 This paper provides a link between causal inference and machine learning techniques - specifically, Classification and Regression Trees (CART) - in observational studies where the receipt of the treatment is not randomized, but the assignment to the treatment can be assumed to be randomized (irregular assignment mechanism). The paper contributes to the
Bargagli Stoffi, Falco Joannes +1 more
openaire +3 more sources
An Inhomogeneous Grid-Based Evolutionary Algorithm for Many-Objective Optimization
IEEE Access, 2022 Today, many-objective optimization problems have attracted widespread attention. There are significant advantages of the grid-based algorithm in solving multi-objective problems. Grid-based algorithm could offer a transformation of objectives and further
Maowei He +3 more
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Further results on edge irregularity strength of graphs
Indonesian Journal of Combinatorics, 2017 A vertex $k$-labelling $\phi:V(G)\longrightarrow \{1,2,\ldots,k\}$ is called irregular $k$-labeling of the graph $G$ if for every two different edges $e$ and $f$, there is $w_{\phi}(e)\neq w_{\phi}(f)$; where the weight of an edge is given by $e=xy\in E ...
Muhammad Imran +3 more
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