Results 41 to 50 of about 2,192 (158)

On 14-regular distance magic graphs

open access: yesElectronic Journal of Graph Theory and Applications
Summary: Let \(G\) be a graph with \(n\) vertices. By \(N(v)\) we denote the set of all vertices adjacent to \(v\). A bijection \(f : V(G) \rightarrow \{1, 2, \dots, n\}\) is a distance magic labeling of \(G\) if there exists an integer \(k\) such that the sum of labels of all vertices adjacent to \(v\) is \(k\) for all vertices \(v\) in \(V(G)\).
Petr Kovář, Matěj Krbeček
openaire   +3 more sources

A Systems Engineering Methodology for System of Autonomous Systems: Test and Evaluation

open access: yesSystems Engineering, EarlyView.
ABSTRACT Recent advances in artificial intelligence and machine learning (AI/ML) have resulted in autonomous systems that reduce operators' workload and involvement in hazardous missions. Integrating these systems into an existing system of systems (SoS) can evolve it into a system of autonomous system (SoAS).
Mohammadreza Torkjazi, Ali K. Raz
wiley   +1 more source

Does a decision support tool designed to depict West Nile virus risk explain variation in ruffed grouse Bonasa umbellus use of managed forests?

open access: yesWildlife Biology, EarlyView.
Infectious diseases are commonly cited as significant contributors to wildlife population declines. It is, therefore, important to investigate the extent to which tools designed to mitigate the effects of infectious diseases explain wildlife responses to habitat management.
Jacob Goldman   +8 more
wiley   +1 more source

The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces

open access: yesArchaeometry, EarlyView.
ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río   +6 more
wiley   +1 more source

Golden weapons and golden fetters: From the gold standard to the new geopolitics

open access: yesThe Economic History Review, EarlyView.
Abstract This paper explores the historical relationship between monetary regimes, security concerns, and geopolitical tensions, particularly focusing on the role of gold. Throughout history, monetary systems have been deeply intertwined with international state systems and security provisions.
Harold James
wiley   +1 more source

Distance magic labelling of Mycielskian graphs

open access: yesElectronic Journal of Graph Theory and Applications
Summary: A graph \(G = (V, E)\), where \(|V(G)| = n\) and \(|E(G)| = m\) is said to be a distance magic graph if there is a bijection \(f : V(G) \rightarrow \{1, 2, \dots, n\}\) such that the vertex weight \(w(u)= \sum_{v\in N(u)}f(v)=k\) is constant and independent of \(u\), where \(N(u)\) is an open neighborhood of the vertex \(u\). The constant \(k\)
Ravindra Kuber Pawar, Tarkeshwar Singh
openaire   +1 more source

Group distance magic labeling of direct product of graphs

open access: yesArs Mathematica Contemporanea, 2014
A distance magic labeling of a graph of order \(n\) is a bijection from the vertex set to \(\{0,1,\dots,n-1\}\) such that the sum of neighbors of any vertex is the same. Magic labellings of graphs have been studied as a generalization of magic squares. A central question has been to identify which graphs admit such labelings.
Anholcer, Marcin   +3 more
openaire   +4 more sources

Insights into the catalytic mechanism of formate dehydrogenases from different microbial sources

open access: yesThe FEBS Journal, EarlyView.
This integrated study combines experimental enzyme kinetics with QM/MM simulations to map the catalytic mechanisms of four formate dehydrogenases at the atomic level. This approach reveals the key determinants of catalytic efficiency and guides the rational design of biocatalysts for effective CO2 reduction—a crucial step towards sustainable ...
Laura Legnani   +8 more
wiley   +1 more source

Alternative Approaches for Estimating Highest‐Density Regions

open access: yesInternational Statistical Review, EarlyView.
Summary Among the variety of statistical intervals, highest‐density regions (HDRs) stand out for their ability to effectively summarise a distribution or sample, unveiling its distinctive and salient features. An HDR represents the minimum size set that satisfies a certain probability coverage, and current methods for their computation require ...
Nina Deliu, Brunero Liseo
wiley   +1 more source

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