Results 21 to 30 of about 81 (80)

The prenatal caregiving expectations questionnaire‐revised version: Factor structure, internal consistency, and initial construct validity

open access: yesInfant Mental Health Journal: Infancy and Early Childhood, Volume 45, Issue 5, Page 541-556, September 2024.
Abstract An efficient, multidimensional instrument is needed to screen non‐optimal prenatal parental representations predictive of postnatal parenting behavior and child attachment. The present work aimed to revise and validate the Prenatal Caregiving Expectations Questionnaire—Revised (PCEQ‐R).
Katrine Røhder   +5 more
wiley   +1 more source

On three-dimensional q-Riordan arrays

open access: yesDemonstratio Mathematica
In this article, we define three-dimensional q-Riordan arrays and q-Riordan representations for these arrays. Also, we give four cases of infinite multiplication three-dimensional matrices of these arrays.
Fang Gang   +4 more
doaj   +1 more source

On some special Legendre sums of the form

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
We prove that sums of the form with f(X), g(X) ∈ ℤ[X] can be explicitly computed whenever f and g are subject to some certain conditions which are defined in the paper.
Andrica Dorin, Crişan Vlad
doaj   +1 more source

Functional genetics of hereditary and sporadic uterine leiomyomas. [PDF]

open access: yes, 2006
Uterine leiomyomas (fibroids) are common benign neoplasms arising from the smooth muscle layer of the uterus, the myometrium. Despite their prevalence in reproductive age women, little is understood of their pathobiology. The work in this thesis examined
Wortham, N.C.
core  

Unit group of the ring of negacirculant matrices over finite commutative chain rings

open access: yesSpecial Matrices
Circulant matrices form an important class of matrices that have been continuously studied due to their nice algebraic structures and wide applications. In this study, we focus specifically on negacirculant matrices, which are known as extensions of the ...
Naksing Prarinya, Jitman Somphong
doaj   +1 more source

Explicit expressions for the related numbers of higher order appell polynomials

open access: yes, 2020
In this note, by using the Hasse-Teichm¨uller derivatives, we obtain two explicit expressions for the related numbers of higher order Appell polynomials.
Hu, Su, Komatsu, Takao
core  

Some Determinants Involving Incomplete Fubini Numbers

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
We study some properties of restricted and associated Fubini numbers. In particular, they have the natural extensions of the original Fubini numbers in the sense of determinants.
Komatsu Takao, Ramírez José L.
doaj   +1 more source

On Doubled and Quadrupled Fibonacci Type Sequences

open access: yesAnnales Mathematicae Silesianae
In this paper we study a family of doubled and quadrupled Fibonacci type sequences obtained by distance generalization of Fibonacci sequence. In particular we obtain doubled Fibonacci sequence, doubled and quadrupled Padovan sequence and quadrupled ...
Yilmaz Nur Şeyma   +3 more
doaj   +1 more source

Square Roots of Real 3 × 3 Matrices vs. Quartic Polynomials with Real Zeros

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
There is an interesting analogy between the description of the real square roots of 3×3 matrices and the zeros of the (depressed) real quartic polynomials.
Anghel Nicolae
doaj   +1 more source

A new member of the Pell sequences: The pseudo-Pell sequence

open access: yes
In this study, we define a new family of the Pell numbers and establish some properties of the relation to the ordinary Pell numbers. We give some identities the pseudo-Pell numbers.
GÖKBAŞ, Hasan
core   +1 more source

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