Results 21 to 30 of about 16,885,510 (241)
Karpatsʹkì Matematičnì Publìkacìï, 2022 If $Tr(G)$ and $D(G)$ are respectively the diagonal matrix of vertex transmission degrees and distance matrix of a connected graph $G$, the generalized distance matrix $D_{\alpha}(G)$ is defined as $D_{\alpha}(G)=\alpha ~Tr(G)+(1-\alpha)~D(G)$, where $0 ...
M. Merajuddin, S. Bhatnagar, S. Pirzada
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Relationship between water quality assessment and phytoplankton community structure of M River in Shijiazhuang City [PDF]
E3S Web of Conferences, 2021 On the basis of the “Environmental quality standard for surface water” (GB 3838-2002) in China, eight water quality indexes were measured in M River, including pH, water temperature (T), transparency (SD), dissolved oxygen (DO), chemical needs Oxygen ...
Zhang Ziqi +3 more
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具有最小Wiener指数的三圈图(The tricyclic graphs with minimal Wiener index)
Zhejiang Daxue xuebao. Lixue ban, 2014 The Wiener index W(G) is defined as the sum of distances between all pairs of vertices of a graph G. The graph with the minimum Wiener index among all connected tricyclic graphs with order n is characterized.
XINGBaohua(邢抱花) +2 more
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Ecological-agricultural perspective on the quality of pasture vegetation [PDF]
Journal of Central European Agriculture, 2015 One of the important goals of current research is to find a balance between the diversity of grass covers and their economically sustainable use for farming purposes.
Pavlina Hakrova +3 more
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Norbert Wiener—A Life in Cybernetics
, 2018 Norbert Wiener's celebrated autobiography, available for the first time in one volume.Norbert Wiener—A Life in Cybernetics combines for the first time the two volumes of Norbert Wiener's celebrated autobiography.
Wiener, Norbert
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Modified hyper-Wiener index of trees
, 2023 WOS:000959850000001For a tree T of order n with Laplacian eigenvalues μ1≥μ2≥⋯≥μn−1>μn=0, the Wiener index and the modified hyper-Wiener index are defined as [Formula presented]respectively.
Milovanović I.Ž. +3 more
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Wiener index of an ideal-based zero-divisor graph of commutative ring with unity
AKCE International Journal of Graphs and CombinatoricsThe Wiener index of a connected graph G is [Formula: see text]. In this paper, we obtain the Wiener index of H-generalized join of graphs [Formula: see text]. As a consequence, we obtain some earlier known results in [Alaeiyan et al. in Aust. J.
Balamoorthy S. +2 more
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Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential
FEBS Letters, EarlyView.Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta +3 more
wiley +1 more source
Journal of Saudi Chemical Society, 2016 We have performed the quantitative structure activity relationship (QSAR) study for N-1 and C-3 substituted indole shiff bases to understand the structural features that influence the inhibitory activity toward the cyclooxygenase-2 (COX-2) enzyme.
Amrita Dwivedi +2 more
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FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
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