Results 21 to 30 of about 71,799 (266)

Topological Study of Zeolite Socony Mobil-5 via Degree-Based Topological Indices

Journal of Chemistry, 2021
Graph theory is a subdivision of discrete mathematics. In graph theory, a graph is made up of vertices connected through edges. Topological indices are numerical parameters or descriptors of graph.
Nouman Saeed, Kai Long, Tanweer Ul Islam, Zeeshan Saleem Mufti, Ayesha Abbas   +4 more
doaj   +1 more source

On the equivalence of multiplicity and the generalized topological degree [PDF]

Transactions of the American Mathematical Society, 1972
In this paper we first extend the definition of the multiplicity (as defined by J. Cronin-Scanlon) of operators of the form I + C
O'Neil, T., Thomas, J. W.
openaire   +2 more sources

An $A$-proper map with prescribed topological degree [PDF]

Proceedings of the American Mathematical Society, 1976
For any given element a of the ring *Z = ZN/I, where I is the ideal of integer sequences convergent to 0, an A-proper map in 12 is constructed whose degree in the sense of S. F. Wong is equal to a. The concept of an A-proper map acting in a Banach space was introduced by Petryshyn [6, p. 157] (originally called an operator satisfying condition (H)).
openaire   +1 more source

Degree and Neighborhood Degree Sum-based Topological Characteristics of Zosurabalpin: a Novel Drug for Managing Antibiotic-resistant Infection

Scientific Annals of Computer Science
This article is concerned with the topological characterization of the antibiotic Zosurabalpin through the computation of degree and associated neighborhood degree sum-based topological indices.
Shibsankar Das, Virendra Kumar, Jayjit Barman, Modhuleena Mandal, Arti Kumari   +4 more
doaj   +1 more source

A new result on the existence of periodic solutions for Liénard equations with a singularity of repulsive type

Journal of Inequalities and Applications, 2017
In this paper, the problem of the existence of a periodic solution is studied for the second order differential equation with a singularity of repulsive type x ″ ( t ) + f ( x ( t ) ) x ′ ( t ) − g ( x ( t ) ) + φ ( t ) x ( t ) = h ( t ) , $$x''(t)+f ...
Shiping Lu
doaj   +1 more source

Topological Descriptors on Some Families of Graphs

Journal of Chemistry, 2021
In view of the successful applications of graph theory, relationships between the biological activity and chemical structure have been developed. One of the popular topics in graph theory is problems relating to topological indices.
Iftikhar Ahmad, Maqbool Ahmad Chaudhry, Muhammad Hussain, Tariq Mahmood   +3 more
doaj   +1 more source

Identification of the plant mitochondrial OrfX protein: A mass spectrometry approach

FEBS Letters, EarlyView.
The mitochondrial genome of plants contains an open reading frame, orfx, which encodes a rare protein that has so far escaped mass spectrometric detection. The protein resembles the c‐subunit of bacterial twin‐arginine‐motif‐dependent protein translocases (TatC).
Matthias Döring, Jan de Jonge, Hans‐Peter Braun, Nils Rugen   +3 more
wiley   +1 more source

Vertex-Edge-Degree-Based Topological Properties for Hex-Derived Networks

Complexity, 2022
A topological index can be focused on uprising of a chemical structure into a real number. The degree-based topological indices have an active place among all topological indices.
Ali Ahmad, Muhammad Imran
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Computation of Revan Topological Indices for Phenol-Formaldehyde Resin

Journal of Mathematics, 2022
Phenol-formaldehyde resin has a wide range of moldings. The phenolic resin retains properties at the freezing point; hence, it is difficult to determine its age.
Muhammad Kamran, Nadeem Salamat, Riaz Hussain Khan, Muhammad Abaid Ullah, Muhammad Shazib Hameed, M. K. Pandit   +5 more
doaj   +1 more source