Results 31 to 40 of about 193,774 (278)

Degree-Based Topological Indices of Boron B12

Journal of Chemistry, 2021
Topological index sometimes called molecular descriptor is a numerical value which associates a chemical composition for correlating chemical structure with numerous physical properties, chemical reactivity, or biological activity.
Nouman Saeed, Kai Long, Zeeshan Saleem Mufti, Hafsa Sajid, Abdul Rehman   +4 more
doaj   +1 more source

Extremal problems on exponential vertex-degree-based topological indices

Mathematical Biosciences and Engineering, 2022
In this work we obtain new lower and upper optimal bounds for general (exponential) indices of a graph. In the same direction, we show new inequalities involving some well-known topological indices like the generalized atom-bound connectivity index ...
José M. Sigarreta
doaj   +1 more source

Faster Worst Case Deterministic Dynamic Connectivity [PDF]

, 2015
We present a deterministic dynamic connectivity data structure for undirected graphs with worst case update time $O\left(\sqrt{\frac{n(\log\log n)^2}{\log n}}\right)$ and constant query time.
Kejlberg-Rasmussen, Casper, Kopelowitz, Tsvi, Pettie, Seth, Thorup, Mikkel   +3 more
core   +3 more sources

Adapting the Interrelated Two-way Clustering method for Quantitative Structure-Activity Relationship (QSAR) Modeling of a Diverse Set of Chemical Compounds

, 2013
Interrelated Two-way Clustering (ITC) is an unsupervised clustering method developed to divide samples into two groups in gene expression data obtained through microarrays, selecting important genes simultaneously in the process.
Basak, Subhash C., Grunwald, Gregory D., Majumdar, Subhabrata   +2 more
core   +1 more source

Vertex-Based Topological Indices of Double and Strong Double Graph of Dutch Windmill Graph

Journal of Chemistry, 2021
A measurement of the molecular topology of graphs is known as a topological index, and several physical and chemical properties such as heat formation, boiling point, vaporization, enthalpy, and entropy are used to characterize them.
Muhammad Asad Ali, Muhammad Shoaib Sardar, Imran Siddique, Dalal Alrowaili   +3 more
doaj   +1 more source

On Topological Indices for New Classes of Benes Network

Journal of Mathematics, 2021
Topological indices (TIs) transform a molecular graph into a number. The TIs are a vital tool for quantitative structure activity relationship (QSAR) and quantity structure property relationship (QSPR).
Aftab Hussain, Muhammad Numan, Nafisa Naz, Saad Ihsan Butt, Adnan Aslam, Asfand Fahad   +5 more
doaj   +1 more source

Influence of wiring cost on the large-scale architecture of human cortical connectivity [PDF]

, 2014
In the past two decades some fundamental properties of cortical connectivity have been discovered: small-world structure, pronounced hierarchical and modular organisation, and strong core and rich-club structures.
A Fornito, A Zalesky, AK Seth, AL Traud, Anil K. Seth, B Karrer, BJ Baars, C Echtermeyer, C Koch, CC Hilgetag, CJ Honey, CJ Stam, D Bhowmik, D Holten, D Meunier, D Meunier, D Tomasi, D Tomasi, David Samu, DB Chklovskii, DC Van Essen, DJ Watts, DS Bassett, DS Bassett, DS Bassett, DS Modha, E Bullmore, E Ravasz, FD Rossa, G Tononi, G Zamora-López, G Zamora-López, H Johansen-Berg, H Pan, J Cabral, J Gómez-Gardeñes, JP Onnela, L Cammoun, L Danon, M Arthuis, M Kaiser, M Kaiser, M Kaiser, M Kaiser, M Kaiser, M Meila, M Rubinov, M Rubinov, M Shanahan, M Shanahan, M Shanahan, M Shanahan, M Steen, M Valencia, MD Greicius, MD Humphries, MD Humphries, ME Newman, ME Newman, ME Raichle, MEJ Newman, MEJ Newman, MG Kitzbichler, MP Van den Heuvel, MP van den Heuvel, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, O Sporns, Olaf Sporns, P Hagmann, R Milo, S Achard, S Boccaletti, S Jbabdi, S Maslov, S Mori, S Zhou, SB Seidman, SL Bressler, SP Borgatti, T Opsahl, T Sørensen, TE Conturo, Thomas Nowotny, V Colizza, V Latora, Y Chen, Y He, YY Ahn, ZJ Chen   +96 more
core   +2 more sources

The Connectivity and the Harary Index of a Graph [PDF]

, 2012
The Harary index of a graph is defined as the sum of reciprocals of distances between all pairs of vertices of the graph. In this paper we provide an upper bound of the Harary index in terms of the vertex or edge connectivity of a graph.
Das, Diudea, Estrada, Feng, He, Ilić, Ivanciuc, Lučić, Plavčsić, Wiener, Xiao-Xin Li, Xu, Xu, Xu, Xu, Yi-Zheng Fan, Yu, Zhou   +17 more
core   +1 more source

Topological Descriptors of M-Carbon Mr,s,t

Journal of Chemistry, 2021
We have studied topological indices of the one the hardest crystal structures in a given chemical system, namely, M-carbon. These structures are based and obtained by the famous algorithm USPEX. The computations and applications of topological indices in
Hong Yang, Muhammad Naeem
doaj   +1 more source

Bridging the gap: Multi‐stakeholder perspectives of molecular diagnostics in oncology

Molecular Oncology, EarlyView.
Although molecular diagnostics is transforming cancer care, implementing novel technologies remains challenging. This study identifies unmet needs and technology requirements through a two‐step stakeholder involvement. Liquid biopsies for monitoring applications and predictive biomarker testing emerge as key unmet needs. Technology requirements vary by
Jorine Arnouts, Senada Koljenović, Elise Daems, Karolien De Wael, Marc Peeters, Léon C. van Kempen, Greetje Vanhoutte, Karen Zwaenepoel, Timon Vandamme   +8 more
wiley   +1 more source