Results 51 to 60 of about 880 (146)
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 3, Page 292-305, April 2026.ABSTRACT Fungal pathogens pose a growing threat to vertebrate biodiversity. In snakes, Ophidiomyces ophidiicola (Oo) has garnered particular concern, although its impact in Europe remains poorly understood. We conducted a season‐long, standardized survey of dice snakes (Natrix tessellata) along the northern shore of Lake Como (Italy) to quantify Oo and
Matteo Riccardo Di Nicola +8 more
wiley +1 more source
On the domination number and the 2-packing number of Fibonacci cubes and Lucas cubes
Computers & Mathematics with Applications, 2011 Let $\Gamma_n$ and $\Lambda_n$ be the $n$-dimensional Fibonacci cube and Lucas cube, respectively. The domination number $\gamma$ of Fibonacci cubes and Lucas cubes is studied. In particular it is proved that $\gamma(\Lambda_{n})$ is bounded below by $\left\lceil\frac{L_{n}-2n}{n-3}\right\rceil$, where $L_n$ is the $n$-th Lucas number.
Castro, Aline +3 more
openaire +3 more sources
The Financial Status and Local Credit Market Conditions of U.S. Farms Engaged in Multiple Borrowing
Applied Economic Perspectives and Policy, Volume 48, Issue 1, Page 266-277, March 2026.ABSTRACT Agricultural producers often borrow from multiple lenders, raising concerns about credit risk and monitoring. We construct detailed farm‐level measures of how debt is distributed across lenders and examine how farm financial status and the physical presence of local lenders are linked to this practice.
Sylvanus Gaku +3 more
wiley +1 more source
A new characterization and a recognition algorithm of Lucas cubes [PDF]
Discrete Mathematics & Theoretical Computer Science, 2013 Graph Theory Fibonacci and Lucas cubes are induced subgraphs of hypercubes obtained by excluding certain binary strings from the vertex set. They appear as models for interconnection networks, as well as in chemistry. We derive a characterization of Lucas cubes that is based on a peripheral expansion of a unique convex subgraph of an ...
openaire +3 more sources
Propellants, Explosives, Pyrotechnics, Volume 51, Issue 3, Page 446-455, March 2026.A low‐speed impact (around one meter per second) of a metallic tip on an explosive confined by a thin plate is simulated. The heat due to friction between the tip and the plate and the one due to the deformation of the plate are not transfered to the ignited zone.
Lucas Bonneau, Didier Picart
wiley +1 more source
Maximal hypercubes in Fibonacci and Lucas cubes
Discrete Applied Mathematics, 2012 The Fibonacci cube $ _n$ is the subgraph of the hypercube induced by the binary strings that contain no two consecutive 1's. The Lucas cube $ _n$ is obtained from $ _n$ by removing vertices that start and end with 1. We characterize maximal induced hypercubes in $ _n$ and $ _n$ and deduce for any $p\leq n$ the number of maximal $p$-dimensional ...
openaire +2 more sources
Counting the sum of cubes for Lucas and Gibonacci numbers
Science and Technology Indonesia, 2019 Lucas and Gibonacci numbers are two sequences of numbers derived from a welknown numbers, Fibonacci numbers. The difference between Lucas and Fibonacci numbers only lies on the first and second elements. The first element in Lucas numbers is 2 and the second is 1, and nth element, n ≥ 3 determined by similar pattern as in the Fibonacci numbers, i ...
Wamiliana Wamiliana +2 more
openaire +2 more sources
JWST/NIRSpec Reveals the Atmospheric Driver of Saturn's Variable Magnetospheric Rotation Rate
Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract Past measurements of Saturn's upper atmosphere have allowed only a broad scale view of the temperature and ion density structures within the auroral region. However, Saturn's auroral currents include a planetary period current component that is produced by neutral atmospheric flows.
Tom S. Stallard +15 more
wiley +1 more source
Zoologica Scripta, Volume 55, Issue 2, Page 209-219, March 2026.ABSTRACT Until now, the genetic identity of common grass snakes (Natrix natrix) in Poland remained poorly understood. This study presents the first comprehensive phylogeographic analysis for Poland using mitochondrial DNA sequences (cyt b and ND4 + tRNAs) and 13 nuclear microsatellite loci.
Andrea Criado‐Flórez +12 more
wiley +1 more source
Diophantine tuples and product sets in shifted powers
Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.Abstract Let k⩾2$k\geqslant 2$ and n≠0$n\ne 0$. A Diophantine tuple with property Dk(n)$D_k(n)$ is a set of positive integers A$A$ such that ab+n$ab+n$ is a k$k$th power for all a,b∈A$a,b\in A$ with a≠b$a\ne b$. Such generalizations of classical Diophantine tuples have been studied extensively.
Ernie Croot, Chi Hoi Yip
wiley +1 more source