Results 121 to 130 of about 572,605 (265)

Reduced First Zagreb Index, Reduced Second Zagreb Index And Hyper-Zagreb Index Of Four New Sums Based On Tensor Product Of Graphs

open access: yes, 2018
Topological indices have opened up doors for better studies in structural chemistry and biology. In this paper, we compute the Reduced first Zagreb index, Reduced second Zagreb index and hyper-Zagreb index of four new graph operations based on tensor product.
openaire   +1 more source

On the first Zagreb index of graphs with Self-Loops

open access: yesAKCE Int. J. Graphs Comb., 2023
Shashwath S. Shetty, A. Bhat K
semanticscholar   +1 more source

Fly me to the canopy: Diptera communities in oak forest crowns as bioindicators of stand decline

open access: yesInsect Conservation and Diversity, EarlyView.
Diptera diversity: Oak decline increases the overall Diptera diversity, particularly in saproxylic and floricolous guilds, likely due to more open canopies and greater deadwood and floral resource availability. Family responses: Dolichopodidae, Empididae, Hybotidae and Anthomyiidae thrive in declining stands, whereas Mycetophilidae and other fungus ...
Anastasia Paupe   +32 more
wiley   +1 more source

Topology-Based Analysis of OTIS (Swapped) Networks OKn and OPn

open access: yesJournal 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
doaj   +1 more source

Underrepresentation of Nurses in Croatian Graduate Nursing Programs: Implications for Academic Equity in Nursing Education

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aim To examine the representation of nurses in Croatian graduate nursing programs and to explore its implications for academic equity, professional development, and nursing leadership. Design Cross‐sectional descriptive study using document analysis.
Ivana Žilić   +4 more
wiley   +1 more source

Intensive Care Unit Nurses' Perceptions of Work Environments: A Cross‐Sectional Study From Five European Counties

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aim To explore intensive care nurses' perceptions of their work environments at the unit and organisational levels according to the American Association of Critical Care Nurses standards, their impact on care quality, national differences, and demographic associations. Design Cross‐sectional study using a survey design. Methods Study conducted
Εvanthia Georgiou   +14 more
wiley   +1 more source

The First Zagreb Index, the Laplacian Spectral Radius, and Some Hamiltonian Properties of Graphs

open access: yesMathematics
The first Zagreb index of a graph G is defined as the sum of the squares of the degrees of all the vertices in G. The Laplacian spectral radius of a graph G is defined as the largest eigenvalue of the Laplacian matrix of the graph G.
Rao Li
doaj   +1 more source

The Psychology of Museum Experiences: A Field Study of Hedonic and Eudaimonic Well‐Being

open access: yesJournal of Applied Social Psychology, EarlyView.
ABSTRACT Museums are increasingly perceived as spaces where visitors' experience extends to their well‐being, functioning as potential well‐being generators. However, little is known about whether museums can foster different types of well‐being (i.e., hedonic and eudaimonic), which psychological processes are involved, and how visitors' pre‐visit ...
Marta Šveb Dragija   +2 more
wiley   +1 more source

Entropies and Degree-Based Topological Indices of Generalized Sierpiński Graphs

open access: yesFractal and Fractional
Fractals 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
doaj   +1 more source

Addiction and chronic skin diseases: A Pan‐European study on prevalence, associations and patient impact

open access: yesJournal of the European Academy of Dermatology and Venereology, EarlyView.
This pan‐European study reveals high rates of addiction in patients with chronic skin diseases. Smoking, alcohol, drug use, gambling, and internet addiction were prevalent and associated with quality of life, demographics, and region. The findings support integrating addiction screening into dermatologic care to improve outcomes.
Stefanie Ziehfreund   +73 more
wiley   +1 more source

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