Results 71 to 80 of about 7,617 (257)
A Study on Dual Hyperbolic Fibonacci and Lucas Numbers
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019 In this study, the dual-hyperbolic Fibonacci and dual-hyperbolic Lucas numbers are introduced. Then, the fundamental identities are proven for these numbers.
Cihan Arzu +3 more
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Pre‐industrial land‐use limits contemporary shrub encroachment in the French Alps
Ecography, EarlyView.Shrub encroachment has become a global phenomenon in recent decades. While global warming in the Arctic is often cited as the primary cause, human‐managed mountain regions have experienced intense historical land‐use that may also play a considerable role.
Baptiste Nicoud +6 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A π‐conjugated carbazole (p‐CBZ) layer is electro‐polymerized on BiVO4 to form a p–n heterojunction that enhances charge separation and suppresses surface recombination, while a NiOOH co‐catalyst accelerates oxygen evolution kinetics. The synergistic BVO/p‐CBZ/NiOOH photoanode delivers a high photocurrent density and long‐term stability for efficient ...
Lakshman Sundar Arumugam +11 more
wiley +1 more source
ESC Heart Failure, Volume 12, Issue 2, Page 1336-1345, April 2025.Abstract Aims Mortality in cardiogenic shock (CS) remains elevated, with the potential for CS causes to impact prognosis and risk stratification. The aim was to investigate in‐hospital prognosis and mortality in CS patients according to aetiology. We also assessed the prognostic accuracy of CardShock and IABP‐SHOCK II scores.
Cosme García‐García +17 more
wiley +1 more source
A determinant property of Catalan numbers
Discrete Mathematics, 2000 Let \(M_k^t\) denote the \(k \times k\) (persymmetric) matrix having the consecutive Catalan numbers starting at \(c_t\) as row one, those starting at \(c_{t+1}\) as row two, etc. Now define \(G\) to be the infinite digraph with vertex set \({\mathbb{Z}} \times {\mathbb{Z}}\) and with directed arcs from \((i,j)\) to \((i+1,j)\), and to \({(i,j+1 ...
Michael E. Mays, Jerzy Wojciechowski
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Simple Rules of a Discrete Stochastic Process Leading to Catalan-like Recurrences
AlgorithmsA method for obtaining integer sequences is presented by defining simple rules for the evolution of a discrete dynamical system. This paper demonstrates that various Catalan-like recurrences of known integer sequences can be obtained from a single ...
Mariusz Białecki
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European Journal of Social Psychology, EarlyView.ABSTRACT Previous research has focused on disadvantaged groups seeking social change, overlooking how dominant groups mobilize to preserve the status quo. Across three studies (two correlational, one experimental), we explored how collective grievance—the feeling of being or having been collectively wronged by an outgroup—drives system‐preserving ...
Beatriz Alba, Alexandra Vázquez
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Ears of triangulations and Catalan numbers
Discrete Mathematics, 1996 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ferran Hurtado, Marc Noy
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s-Catalan numbers and Littlewood-Richardson polynomials [PDF]
Enumerative Combinatorics and Applications, 2022 William Linz
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Light‐Modulated Exchange Bias in Multiferroic Heterostructures
Electron, EarlyView.In this article, exchange bias and magnetization are modulated with visible light at room temperature in PMN‐PZT/FeGa/IrMn multiferroic heterostructures. Photostrictive effect is the main mechanism leading to the modulation of magnetic anisotropy and interfacial exchange bias coupling between the ferromagnetic and antiferromagnetic layers.
Huan Tan +9 more
wiley +1 more source