Results 41 to 50 of about 1,605,720 (180)
A Grammatical Interpretation of Horadam Sequences
AxiomsThe Horadam sequence {Hn(a,b;p,q)}n⩾0 has been widely studied in combinatorics and number theory. In this paper, we find that the context-free grammar G={x→px+y,y→qx} can be used to generate Horadam sequences.
Jun-Ying Liu +2 more
doaj +1 more source
People and Nature, EarlyView.Abstract The first edition of the Ordnance Survey's 1:2500 County Series is marked with treed areas, such as woodlands and orchards, and, remarkably, freestanding trees. Consequently, it is an unparalleled source of information on the distribution of trees across Britain in the mid‐late nineteenth century, when the maps were first surveyed. In order to
Toby Pillatt, William A. P. Smith
wiley +1 more source
The Return of the Celebrity Fashion Muse: Brand Endorsement, Creative Inspiration and Celebrity-Influenced Design Communication [PDF]
, 2021 This article examines the current prevalence of fashion designers working in association with celebrity ‘muses’, famous figures drawn from acting and popular music, who serve to front brand campaigns, but also embody the identity of fashion houses and ...
Barron, Lee
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Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
On split r-Jacobsthal quaternions
, 2020 In this paper we introduce a one-parameter generalization of the split Jacobsthal quaternions, namely the split r-Jacobsthal quaternions. We give a generating function, Binet formula for these numbers.
Bród, Dorota
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Paleontological data provide information on natural environments prior to human influence, which are useful for tracking changes in ecosystem functioning through time. During the Late Pleistocene, about 10% of terrestrial mammalian species were extinct in South America.
Thayara S. Carrasco +3 more
wiley +1 more source
Integrative Zoology, EarlyView.This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez +4 more
wiley +1 more source
Bicomplex Third-order Jacobsthal Quaternions
, 2018 The aim of this work is to consider the bicomplex third-order Jacobsthal quaternions and to present some properties involving this sequence, including the Binet-style formulae and the generating functions.
Cerda, Gamaliel
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Q-Analogues of biperiodic fibonacci and lucas sedenions [PDF]
, 2021 Quantum calculus has an important areas in many areas such as number theory, physics and mathematics. In this paper, by taking some useful notations from quantum calculus, we define the biperiodic Fibonacci and Lucas sedenions based on a q-parameter ...
Köme, Sure, Gün, Hafize
core
Female‐Biased Sexual Size Dimorphism and Its Potential Causes in Hairy‐Winged Bats
Integrative Zoology, EarlyView.Based on the integration of molecular genetics, traditional and geometric morphology, and acoustic characteristics of hairy‐winged bats (a species that was historically misclassified into two species due to extreme craniodental divergence between the sexes) in multiple regions of China, we quantified the sexual size dimorphism (SSD) between males and ...
Yang Yue +7 more
wiley +1 more source