Results 41 to 50 of about 4,554,566 (196)

REDUCED SECOND ZAGREB INDEX OF BICYCLIC GRAPHS WITH PENDENT VERTICES [PDF]

open access: yes, 2016
Reduced second Zagreb index has been defined recently. In this paper we characterized extremal bicyclic graphs with pendent vertices with respect to this novel ...
Ediz, Süleyman
core   +3 more sources

Modified Zagreb connection indices of the T-sum graphs

open access: yesMain Group Metal Chemistry, 2020
The quantitative structures activity relationships (QSAR) and quantitative structures property relationships (QSPR) between the chemical compounds are studied with the help of topological indices (TI’s) which are the fixed real numbers directly linked ...
Ali Usman, Javaid Muhammad, Kashif Agha
doaj   +1 more source

On the Trees With Maximal Augmented Zagreb Index

open access: yesIEEE Access, 2018
The augmented Zagreb index (AZI), a variant of the well-known atom-bond connectivity (ABC) index, was shown to have the best predicting ability for a variety of physicochemical properties among several tested vertex-degree-based topological indices.
Wenshui Lin   +4 more
openaire   +3 more sources

Are physician-patient communication practices slowly changing in Croatia? – a cross-sectional questionnaire study [PDF]

open access: yes, 2013
Aim To explore physician-patient communication practices during the process of obtaining informed consent in a hospital setting in Croatia. Methods Two hundred and fifty patients (response rate 78%) from five tertiary level hospitals in Zagreb ...
Borovečki, Ana   +4 more
core   +1 more source

Zbornik radova s konferencije "65th Anniversary Conference of the Institute of Economics, Zagreb" [PDF]

open access: yes, 2005
U okviru obilježavanja 65. obljetnice djelovanja Ekonomskog instituta, Zagreb od 18. do 19. studenog 2004. održana je međunarodna znanstvena konferencija 65th Anniversary Conference of the Institute of Economics, Zagreb. Radovi prihvaćeni za konferenciju

core   +1 more source

About the Zagreb Indices [PDF]

open access: yesKemija u Industriji, 2010
The original Zagreb indices and some of their variants, such as the modified Zagreb indices, variable Zagreb indices, reformulated original Zagreb indices, reformulated modified Zagreb indices, Zagreb indices as complexity indices, general Zagreb indices,
Gutman, I.   +3 more
doaj  

The hyper-Zagreb index of cacti with perfect matchings [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Let be a simple connected graph. The hyper-Zagreb index is defined as . A connected graph is a cacti if all blocks of are either edges or cycles. Let be the set of cacti of order with a perfect matching and cycles. In this paper, we determine sharp upper bounds of the hyper-Zagreb index of cacti among and characterize the corresponding extremal cacti.
Hechao Liu, Zikai Tang
openaire   +3 more sources

Topological Properties of Nanostar Dendrimer and Smart Polymer

open access: yesJournal of Chemistry, 2020
The nanostar dendrimers are a piece of another gathering of macromolecules that seem, by all accounts, to be photon pipes simply like counterfeit reception apparatuses.
Muhammad Aamer Rashid   +3 more
doaj   +1 more source

Data-driven analysis of chemical graph of carbazole and diketopyrrolopyrrole

open access: yesScientific Reports
Topological indices play a key role in molecular graph theory, consisting of mathematical tools that allocate numerical values to molecular structures.
Zeeshan Saleem Mufti   +5 more
doaj   +1 more source

M-Polynomials and Degree-Based Topological Indices of the Molecule Copper(I) Oxide

open access: yesJournal of Chemistry, 2021
Topological indices are numerical parameters used to study the physical and chemical residences of compounds. Degree-based topological indices have been studied extensively and can be correlated with many properties of the understudy compounds.
Faryal Chaudhry   +5 more
doaj   +1 more source

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