Results 81 to 90 of about 4,059,402 (265)
Two modified Zagreb indices for random structures
Main Group Metal Chemistry, 2021 Random structure plays an important role in the composition of compounds, and topological index is an important index to measure indirectly the properties of compounds.
Li Siman, Shi Li, Gao Wei
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Some Upper Bounds on the First General Zagreb Index
Journal of Mathematics, 2022 The first general Zagreb index MγG or zeroth-order general Randić index of a graph G is defined as MγG=∑v∈Vdvγ where γ is any nonzero real number, dv is the degree of the vertex v and γ=2 gives the classical first Zagreb index.
Muhammad Kamran Jamil +3 more
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On Zagreb coindices and Mostar index of $$TiO_2$$ nanotubes
Scientific Reports, 2023 Abstract Topological indices are valuable tools in predicting properties of chemical compounds. This study focuses on degree-based topological indices, which have shown strong correlations with various physico-chemical properties such as boiling points and strain energy.
Imran, Muhammad +4 more
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Journal of Consumer Behaviour, EarlyView.ABSTRACT Online fan communities are important peripheral arenas for sports consumption. However, the psychological and social mechanisms that sustain engagement across these digital spaces are not sufficiently understood. This study thus investigates how Orientation Toward Sporting Events (OSE) drives fan page engagement and, subsequently, satisfaction.
Hamid Shaker +3 more
wiley +1 more source
On Some Properties of Fuzzy Topological Indices of Honeycomb Graph
Journal of MathematicsThe primary contribution of this paper is the characterization of a novel graph structure, the fuzzy honeycomb network, through the lens of fuzzy molecular descriptors.
Sana Shafqat, Naveed Yaqoob, Aliya Javed
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Entropies and Degree-Based Topological Indices of Generalized Sierpiński Graphs
Fractal and FractionalFractals are geometric patterns that appear self-similar across all length scales and are constructed by repeating a single unit on a regular basis. Entropy, as a core thermodynamic function, is an extension based on information theory (such as Shannon ...
Si-Ao Xu, Jia-Dong Si, Jia-Bao Liu
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Probabilistic analysis of the First Zagreb index
Transactions on Combinatorics, 2013 In this paper we study the Zagreb index in bucket recursive trees containing buckets with variable capacities. This model was introduced by Kazemi in 2012. Weobtain the mean and variance of the Zagreb index andintroduce a martingale based on this quantity.
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Genetic testing practices across European epilepsy centers: An ERN EpiCARE survey
Epilepsia Open, EarlyView.Abstract Objective Genetic testing plays an increasing role in the diagnostic pathway for rare and complex epilepsies. However, significant heterogeneity persists in access, implementation, and interpretation across Europe. This study aimed to assess genetic testing practices, accessibility, and challenges across expert epilepsy centers within the ...
Sébile Tchaicha +11 more
wiley +1 more source
Topology-Based Analysis of OTIS (Swapped) Networks OKn and OPn
Journal of Chemistry, 2019 In the fields of chemical graph theory, topological index is a type of a molecular descriptor that is calculated based on the graph of a chemical compound. In this paper, M-polynomial OKn and OPn networks are computed.
Hai-Xia Li +2 more
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Associations Between Health-Related Physical Fitness and Accelerometry-Based Energy Expenditure in Physiotherapy Workers. [PDF]
Physiother Res IntABSTRACT Background and Purpose Although it has been assumed that higher physical activity (PA) levels will contribute to better physical fitness (PF) performance, the interplay between these two has yet to be investigated. Moreover, the majority of studies have been presented in children and adolescents, and older adults, while little is known about ...
Horvat Tišlar M +3 more
europepmc +2 more sources