Results 81 to 90 of about 5,889 (226)

On generalized Pell numbers and their graph representations [PDF]

, 2008
In this paper we give a generalization of the Pell numbers and the Pell-Lucas numbers and next we apply this concept for their graph representations. We shall show that the generalized Pell numbers and the Pell-Lucas numbers are equal to the total number
Włoch, Iwona
core   +1 more source

Incomplete Bivariate Fibonacci and Lucas 𝑝-Polynomials

Discrete Dynamics in Nature and Society, 2012
We define the incomplete bivariate Fibonacci and Lucas 𝑝-polynomials. In the case 𝑥=1, 𝑦=1, we obtain the incomplete Fibonacci and Lucas 𝑝-numbers. If 𝑥=2, 𝑦=1, we have the incomplete Pell and Pell-Lucas 𝑝-numbers.
Dursun Tasci, Mirac Cetin Firengiz, Naim Tuglu   +2 more
doaj   +1 more source

Comparative on the Microscopic Properties of wood near the pith to bark in Dalbergia sissoo in ShoshDanial [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2015
In this research microscopic properties of wood near the pith to bark in Dalbergia sissoo was investigated. For this reason 3 stands of 10 years old Dalbergia sissoo trees from ShoshDanial area in Khozestan province were selected and cut.
Babak Nosrati, mohamad haghpanah, masih masoudifar, alireza dorostkar   +3 more
doaj   +1 more source

Association of Maxillofacial Fractures With Demographic and Dental Factors: The Roles of Edentulism, Posterior Occlusion, Canines, and Lower Third Molar

Dental Traumatology, EarlyView.
ABSTRACT Background/Aim This retrospective, two‐center study aims to improve understanding of fracture pathogenesis in maxillofacial trauma by examining variations related to sex, age, dental status, posterior occlusion, and the presence of lower third molars (LTM) and lower canines.
Canan Uzun, Ceyhun Uzun, Savas Ozarslanturk, Emrah Kagan Yasar   +3 more
wiley   +1 more source

Pell matrix sequences and their properties [PDF]

, 2014
Bu çalışmada, öncelikle {pn (s, t)}n (s, t) -Pell ve { ( , )} n n q s t (s, t) -Pell Lucas sayı dizileri tanımlanmış ve bu dizilerin temel özellikleri incelenmiştir. Ayrıca, bu sayı dizileri için çeşitli özdeşlikler elde edilmiştir.
Güleç, Hasan Hüseyin
core  

Learning gains from work placements: Innovative behavior and the role of emotional competencies

European Management Review, EarlyView.
Abstract The importance of innovative behavior (IB) has been well documented, and the engagement of employees in IB has become a tacit norm in many organizations. It has also been understood that IB is emotionally charged. However, little research has concentrated on whether higher education (HE) providers can foster IB in university students, and ...
Marco Furlotti, Helen Shipton
wiley   +1 more source

Rich Dad Poor Dad? CEO Private School Background and Firm Risk

European Financial Management, EarlyView.
ABSTRACT We examine the effect of CEO childhood socioeconomic status (SES) on firm risk. Using hand‐collected data on US CEOs' private high‐school attendance as proxy for high‐SES, we find that firms led by high‐SES CEOs exhibit 5.35% lower firm risk. This effect diminishes with CEO tenure, analyst coverage, and institutional ownership, consistent with
Yifei Bi, Christos Mavrovitis, Chen Yang
wiley   +1 more source

Solution of an odds inversion problem [PDF]

Notes on Number Theory and Discrete Mathematics
Consider the problem of determining the possible numbers of balls of two different colors in an urn such that if two are drawn out at random, the odds that they are different colors are a given value. We present a general solution of this problem for all
Robert K. Moniot
doaj   +1 more source

Repdigits as Products of Consecutive Pell or Pell–Lucas Numbers

Iranian Journal of Mathematical Sciences and Informatics
Summary: A positive integer is called a repdigit if it has only one distinct digit in its decimal expansion. In this paper, we find all repdigits that are products of consecutive Pell or Pell-Lucas numbers. This paper continues previous work which dealt with finding occurrences of repdigits in the Pell and Pell-Lucas sequences.
Bravo, Eric F., Bravo, Jhon J.
openaire   +2 more sources

Fine‐scale genetic structure in co‐operatively breeding Palmchats (Dulus dominicus) suggests mixed kinship in compound nests

Ibis, EarlyView.
Fine‐scale genetic structure in animal populations can create opportunities for both kin‐directed co‐operation and kin competition. Knowledge of kinship is therefore key to understanding the selective pressures shaping sociality as well as the effects of social behaviour on local genetic structure.
Joshua B. LaPergola, Gavin M. Leighton, Christina Riehl   +2 more
wiley   +1 more source