Results 61 to 70 of about 25,433 (194)

Exploratory Analysis of Sustainable Consumption and Production Factors in Services: Insights From Four Case Studies Using Interpretive Structural Modeling

open access: yesSustainable Development, EarlyView.
ABSTRACT This study investigates how 14 sustainable consumption and production (SCP) factors interact across four service categories—Mass Service, Professional Service, Service Factory, and Service Shop—using interpretive structural modeling (ISM). ISM enables the identification and hierarchical classification of interdependencies among SCP factors in ...
Amanda Duarte Feitosa   +4 more
wiley   +1 more source

Computing Topological Indices and Polynomials of the Rhenium Trioxide

open access: yesJournal of Mathematics, 2022
In the study of mathematical chemistry and chemical graph theory, a topological index, also known as a connectivity index, is the arithmetical framework of a graph that specifies its topology and also graph invariant.
Shahid Imran   +4 more
doaj   +1 more source

Graph Classes (Dis)satisfying the Zagreb Indices Inequality [PDF]

open access: yes, 2011
International audience{Recently Hansen and Vukicevic proved that the inequality $M_1/n \leq M_2/m$, where $M_1$ and $M_2$ are the first and second Zagreb indices, holds for chemical graphs, and Vukicevic and Graovac proved that this also holds for trees.
Andova, Vesna   +2 more
core   +2 more sources

Frequency and Severity of Allergic Reactions to Non‐Mandatory Labelled Allergenic Foods—Data From Two Large European Cohorts

open access: yesAllergy, EarlyView.
In two large European cohorts, 589 reactions to non‐mandatory labelled plant‐based foods were identified with sunflower seed, pine nut, pea and lentil as the most frequent triggers. Reaction severity was not different between mandatory and non‐mandatory labelled allergenic foods. Their frequency and rising trends (e.g., fenugreek, pumpkin seed) support
Sabine Dölle‐Bierke   +18 more
wiley   +1 more source

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

Infrastructure expansion, tourism and electoral outcomes

open access: yesEconomica, EarlyView.
Abstract This paper examines the electoral impact of economic growth through increased foreign tourism using data from Croatia. To identify causal effects, the paper applies an instrumental variable strategy, which uses variation in the ruggedness of the local terrain to estimate the network of least‐cost paths.
Adrian Mehic
wiley   +1 more source

Comparative Study of Generalized Sum Graphs via Degree-Based Topological Indices

open access: yesJournal of Mathematics, 2022
In theoretical chemistry, topological indices (TIs) have important role to predict various physical and structural properties of the study under molecular graphs.
Muhammad Javaid   +2 more
doaj   +1 more source

Zagreb Polynomials and redefined Zagreb indices of nanostar dendrimers [PDF]

open access: yesOpen Physics, 2019
Abstract Dendrimers are profoundly extended natural macromolecules with successive layers of branch units encompassing a central core. Topological indicess are numbers related with graph of a compound to allow quantitative structureactivity/property/lethality connections.
Kang Shin Min   +4 more
openaire   +2 more sources

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

Computing Connection-Based Topological Indices of Sudoku Graphs

open access: yesJournal of Mathematics, 2022
A topological index (TI) is a function that associates a numeric number to the under-study molecular graph. The first TI based on distance was presented by Wiener to find the boiling point of paraffins.
Muhammad Basit Ali   +2 more
doaj   +1 more source

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