Results 41 to 50 of about 991 (168)

Gravitational Radiation From Binary Systems With Time Varying Masses

open access: yesAnnalen der Physik, Volume 538, Issue 8, August 2026.
We extend the standard approach pioneered in the works by Peters and Mathews to include the mass loss processes of the binary components, by obtaining the variations due to gravitational radiation of the main physical parameters. As an application of our results we consider gravitational radiation emission in binary magnetar systems.
Teodora M. Matei   +2 more
wiley   +1 more source

Evolutionary Theories of Emotion in Italian Psychophysiology: Reception, Critique, and Influence, 1880–1920

open access: yesJournal of the History of the Behavioral Sciences, Volume 62, Issue 4, Fall 2026.
ABSTRACT This article examines how Italian psychophysiologists engaged with Charles Darwin's evolutionary theory of the emotions (ETE) between 1880 and 1920. Darwin's work on the natural history of emotions converged with a vibrant tradition of experimental psychophysiology that embodied Italian Positivism's scientific ambitions.
David Ceccarelli, Stefano Canali
wiley   +1 more source

On the sequences of $(q,k)$-generalized Fibonacci numbers [PDF]

open access: yesMathematica Bohemica
We consider a new family of recurrence sequences, the $(q,k)$-generalized Fibonacci numbers. These sequences naturally extend the well-known sequences of $k$-generalized Fibonacci numbers and generalized $k$-order Pell numbers.
Jean Lelis   +3 more
doaj   +1 more source

On Dual Quaternions with $k-$Generalized Leonardo Components

open access: yesJournal of New Theory, 2023
In this paper, we define a one-parameter generalization of Leonardo dual quaternions, namely $k-$generalized Leonardo-like dual quaternions. We introduce the properties of $k$-generalized Leonardo-like dual quaternions, including relations with Leonardo,
Gülsüm Yeliz Saçlı   +1 more
doaj   +1 more source

A Fórmula de Binet e representações matriciais para os Quaternions Complexos de Fibonacci

open access: yesRevista Thema, 2018
Este trabalho investiga a complexificação do modelo de Fibonacci através do estudo sobre os Quaternions. Assim, são apresentadas as definições para os Quaternions de Fibonacci tanto na forma real como complexa.
Rannyelly Rodrigues de Oliveira   +1 more
doaj   +1 more source

On Gaussian Jacobsthal-Padovan Numbers

open access: yesCumhuriyet Science Journal, 2022
Gaussian Jacobsthal-Padovan numbers have been the central focus of this paper and firstly this number sequence has defined. Later, we have given the proof of the generating function of the Gaussian Jacobsthal-Padovan sequence.
Nusret Karaaslan
doaj   +1 more source

On a New Generalization of Pell Hybrid Numbers

open access: yesAnnales Mathematicae Silesianae
In this paper, we define and study a new one-parameter generalization of the Pell hybrid numbers. Based on the definition of r-Pell numbers, we define the r-Pell hybrid numbers.
Bród Dorota   +2 more
doaj   +1 more source

Adverse Effects of Low Serum HDL‐C Levels on Prognosis and Tumor Immune Microenvironment in Patients With Newly Diagnosed Chronic Lymphocytic Leukemia

open access: yesCancer Medicine, Volume 15, Issue 4, April 2026.
ABSTRACT Disorders of lipid metabolism contribute to the occurrence and progression of hematological malignancies, including chronic lymp hocytic leukemia (CLL). The objective of this study was to investigate the association between serum lipid levels and prognosis in patients with CLL.
Weiran Lv   +9 more
wiley   +1 more source

Higher-order balancing numbers: new sequences, recurrence relations, generating functions and identities

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
In this article, we study a novel extension of the classic balancing numbers, referred to as the higher-order balancing numbers and denoted by. This sequence is analogous to the higher-order Fibonacci numbers and follows the same recurrence relation as ...
K. Prasad, Indubala, M. Kumari
doaj   +1 more source

Birch Transpiration Is Not the Main Reason for Insufficient Water Levels in a Rewetted Bog

open access: yesEcohydrology, Volume 19, Issue 3, April/May 2026.
ABSTRACT Natural bogs have high water level (WL) that prevents peat decomposition and promotes bog‐specific vegetation. Especially in rewetted bogs, increasing tree encroachment is observed in combination with low WL. Simultaneously, a general shift in vegetation and microform distribution is visible.
Carla Welpelo   +5 more
wiley   +1 more source

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