Results 91 to 100 of about 25,534 (310)

An Efficient Embedding Technique in Image Steganography Using Lucas Sequence [PDF]

, 2017
Prithwish Das, Supriyo Ray, Atanu Das
openalex   +1 more source

Some arithmetic functions of factorials in Lucas sequences

, 2021
Eric F. Bravo, Jhon J. Bravo, Jhon J. Bravo, Departamento de Matemáticas, Universidad del Cauca, Calle 5 No. 4-70 Popayán, Colombia   +3 more
openalex   +2 more sources

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

On squares in Lucas sequences

Journal of Number Theory, 2007
Let P and Q be non-zero integers. The Lucas sequence U_n(P,Q) is defined by U_0=0, U_1=1, U_n= P*U_{n-1}-Q*U_{n-2} for n >1. The question of when U_n(P,Q) can be a perfect square has generated interest in the literature. We show that for n=2,...,7, U_n is a square for infinitely many pairs (P,Q) with gcd(P,Q)=1; further, for n=8,...,12, the only non-
Bremner, A., Tzanakis, N.
openaire   +3 more sources

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

On h-Jacobsthal and h-Jacobsthal–Lucas sequences, and related quaternions [PDF]

, 2019
Giuseppina Anatriello, Giovanni Vincenzi
openalex   +1 more source

Evaluation of a Product Intended for Microbiological Control in Animal Production, and Its Combination With Halquinol

Animal Research and One Health, EarlyView.
Activo Liquid and Halquinol inhibit Salmonella and Escherichia coli in culture media. Activo Liquid exhibits bactericidal action, whereas HA is bacteriostatic, and their combination results in positive or indifferent interactions. This combination effectively inhibits E. coli throughout digestion simulation, thus reducing the required concentrations of
Alberto Gonçalves Evangelista, Lucas dos Santos Janotto, Adriana Paula Possamai, Carolina Cini Perry, Francine Lemes Ribeiro, Rafael Canonenco de Araujo, Fernando Bittencourt Luciano   +6 more
wiley   +1 more source

A Digital Image Confidentiality Scheme Based on Pseudo-Quantum Chaos and Lucas Sequence. [PDF]

Entropy (Basel), 2020
Butt KK, Li G, Masood F, Khan S.
europepmc   +1 more source

On the Third-Order Jacobsthal and Third-Order Jacobsthal–Lucas Sequences and Their Matrix Representations [PDF]

, 2019
Gamaliel Cerda-Morales
openalex   +1 more source

Effect of Time to Start of Biologic Therapy on Treatment Response in Childhood Arthritis: Results From the UCAN CAN‐DU Cohort

Arthritis &Rheumatology, EarlyView.
Objective To estimate the effect of time from symptom onset to start of biologic treatment on achieving inactive arthritis within six months in a cohort of patients with juvenile idiopathic arthritis (JIA). Methods The international UCAN CAN‐DU study prospectively enrolled patients with JIA across Canada and the Netherlands.
Jelleke B. de Jonge, Sytze de Roock, Dieneke Schonenberg‐Meinema, J. Merlijn van den Berg, Deborah A. Marshall, Sebastiaan J. Vastert, Rae S. M. Yeung, Joost F. Swart, Susanne M. Benseler, on behalf of the UCAN CAN‐DU and UCAN CURE consortia, Adam Huber, Bianca Lang, Chelsea DeCoste, Elizabeth Stringer, Suzanne Ramsey, Alan Rosenberg, Kate Neufeld, Mehul Jariwala, Tristan Kerr, Alexander Mosoiu, Alisa Rachlis, Amy Xu, Arthur Cheng, Brenleigh Jebb, Brian Feldman, Bruno Pereira, Deborah Levy, Dilan Dissanayake, Elizaveta Limenis, Evelyn Rozenblyum, Harper Cheng, Jennifer Ji Young Lee, Lynn Spiegel, Rayfel Schneider, Ronald Laxer, Ruud Verstegen, Shirley Tse, Trang Duong, Andrea Human, David Cabral, Herman Tam, Jaime Guzman, Kim Morishita, Kristin Houghton, Lori Tucker, Mercedes Chan, Ross Petty, Tommy Gerschman, Annet van Royen‐Kerkhof, Berent Prakken, Erika Van Nieuwenhove, Marc Jansen, Nico Wulffraat, Ciarán Duffy, Nadia Luca, Roman Jurencak, Tala El Tal, Claire LeBlanc, Gaëlle Chédeville, Piya Lahiry, Rosie Scuccimarri, Sarah Campillo, Clare Hutchinson, Daniah Basodan, Dax G. Rumsey, Hon Yan Ng, Jeanine McColl, Lillian Lim, Tara McGrath, Danielle Brinkman, Petra Hissink Muller, Elizabeth Legger, Wineke Armbrust, Ellen Schatorje, Esther Hoppenreijs, Elodie Boudes, Gillian Currie, Heinrike Schmeling, Muhammed Dhalla, Nicole Johnson, Paivi Miettunen, Ravneet Sran, Rebeka Stevenson, Erkan Demirkaya, Jonathan Park, Roberta Berard, Giske Biesbroek, Mariken Gruppen, Gordon Soon, Joseph Cafazzo, Liane Heale, Michelle Batthish, Tania Cellucci, Lily Lim, Maarten IJzerman, Marinka Twilt, Marleen Verkaaik, Philomine van Pelt, Sylvia Kamphuis, Michelle Kip, Nickolas Blanchette, Paul Dancey, Regina de Geus   +102 more
wiley   +1 more source