Results 71 to 80 of about 218 (162)

A combined approach to Perrin and Padovan hybrid sequences. [PDF]

Heliyon, 2021
Jafari Petroudi SH, Pirouz M, Karaca E, Yılmaz F.   +3 more
europepmc   +1 more source

On Mixed 𝐵-Concatenations of Pell and Pell–Lucas Numbers which are Pell Numbers

Mathematica Pannonica
Let (𝑃𝑛)𝑛≥0 and (𝑄𝑛)𝑛≥0 be the Pell and Pell–Lucas sequences. Let 𝑏 be a positive integer such that 𝑏 ≥ 2. In this paper, we prove that the following two Diophantine equations 𝑃𝑛 = 𝑏𝑑𝑃𝑚 + 𝑄𝑘 and 𝑃𝑛 = 𝑏𝑑𝑄𝑚 + 𝑃𝑘 with 𝑑, the number of digits of 𝑃𝑘 or 𝑄𝑘 in base 𝑏, have only finitely many solutions in nonnegative integers (𝑚, 𝑛, 𝑘, 𝑏, 𝑑).
Adédji, Kouéssi Norbert, Trebješanin, Marija Bliznac   +1 more
openaire   +3 more sources

Can diagnostic changes caused by cone beam computed tomography alter the clinical decision in impacted lower third molar treatment plan? [PDF]

Dentomaxillofac Radiol, 2021
Mendonça LM, Gaêta-Araujo H, Cruvinel PB, Tosin IW, Azenha MR, Ferraz EP, Oliveira-Santos C, Tirapelli C.   +7 more
europepmc   +1 more source

On the Domain of the Pell-Lucas Matrix in the Spaces c and c_0

Dera Natung Government College Research Journal
In this study, we introduce new Banach sequence spaces $c(\Theta), c_0(\Theta)$, defined via a regular infinite matrix $ \Theta = (\lambda_{nk})$, where \[ \Theta_{nk} = \begin{cases} \dfrac{2\lambda_k}{3\lambda_n+\lambda_{n-1}} & 0 \leq k \leq n ...
Shiva Shah
doaj   +1 more source

Bacillus Calmette-Guérin vaccination for protection against recurrent herpes labialis: a nested randomised controlled trial. [PDF]

EClinicalMedicine, 2023
Pittet LF, Moore CL, McDonald E, Barry S, Bonten M, Campbell J, Croda J, Dalcolmo M, Davidson A, Douglas MW, Gardiner K, Gwee A, Jardim B, Lacerda MVG, Lucas M, Lynn DJ, Manning L, de Oliveira RD, Perrett KP, Prat-Aymerich C, Richmond PC, Rocha JL, Rodriguez-Baño J, Warris A, Wood NJ, Messina NL, Curtis N, BRACE Trial Consortium Group.   +27 more
europepmc   +1 more source

Deriving Binomial Convolution Formulas for Horadam Sequences via Context-Free Grammars

Axioms
The Horadam sequence Hn(a,b;p,q) unifies a number of well-known sequences, such as Fibonacci and Lucas sequences. We use the context-free grammars as a new tool to study Horadam sequences.
Jun-Ying Liu, Hai-Ling Li, Zhi-Hong Zhang, Tao Liu   +3 more
doaj   +1 more source

Consolidation of Class Advantages in the Wake of the Great Recession: University Enrollments, Educational Opportunity and Stratification. [PDF]

Res High Educ, 2021
Ford KS, Rosinger KO, Zhu Q.
europepmc   +1 more source

Randomized Trial of BCG Vaccine to Protect against Covid-19 in Health Care Workers. [PDF]

N Engl J Med, 2023
Pittet LF, Messina NL, Orsini F, Moore CL, Abruzzo V, Barry S, Bonnici R, Bonten M, Campbell J, Croda J, Dalcolmo M, Gardiner K, Gell G, Germano S, Gomes-Silva A, Goodall C, Gwee A, Jamieson T, Jardim B, Kollmann TR, Lacerda MVG, Lee KJ, Lucas M, Lynn DJ, Manning L, Marshall HS, McDonald E, Munns CF, Nicholson S, O'Connell A, de Oliveira RD, Perlen S, Perrett KP, Prat-Aymerich C, Richmond PC, Rodriguez-Baño J, Dos Santos G, da Silva PV, Teo JW, Villanueva P, Warris A, Wood NJ, Davidson A, Curtis N, BRACE Trial Consortium Group.   +44 more
europepmc   +1 more source

A Note on Generalized k-Order F&L Hybrinomials

Axioms
In this study, we introduce generalized k-order Fibonacci and Lucas (F&L) polynomials that allow the derivation of well-known polynomial and integer sequences such as the sequences of k-order Pell polynomials, k-order Jacobsthal polynomials and k-order ...
Süleyman Aydınyüz, Gül Karadeniz Gözeri   +1 more
doaj   +1 more source

Off-target effects of bacillus Calmette-Guérin vaccination on immune responses to SARS-CoV-2: implications for protection against severe COVID-19. [PDF]

Clin Transl Immunology, 2022
Messina NL, Germano S, McElroy R, Rudraraju R, Bonnici R, Pittet LF, Neeland MR, Nicholson S, Subbarao K, Curtis N, BRACE trial.   +10 more
europepmc   +1 more source