Results 41 to 50 of about 128 (117)

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

Cancer 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, Shutong Liu, Jiangtao Song, Zhijian Liang, Huaze Liao, Qianqian Huang, Ziang Zhu, Zhoupei Mo, Yun Wang, Yang Liang   +9 more
wiley   +1 more source

Diophantine equations for additive Pell numbers in Pell, Pell–Lucas, and Modified Pell numbers [PDF]

Notes on Number Theory and Discrete Mathematics
This paper investigates the Diophantine equations arising from ternary additive problems of Pell, Pell-Lucas, and Modified Pell numbers. Specifically, we characterize all integer solutions to the equation Pₙ+Pₘ+Pᵣ=Xₖ, X∈{P,Q,R}, where Pᵢ, Qᵢ, and Rᵢ ...
Ahmet Emin, Ahmet Daşdemir
doaj   +1 more source

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

Ecohydrology, 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, Arndt Piayda, Bärbel Tiemeyer, Alexander Knohl, Adrian Dahlmann, Maren Dubbert   +5 more
wiley   +1 more source

Hyper-Dual Leonardo Quaternions

Journal of New Theory
In this paper, hyper-dual Leonardo quaternions are defined and studied. Some basic properties of the hyper-dual Leonardo quaternions, including their relationships with the hyper-dual Fibonacci quaternions and hyper-dual Lucas quaternions, are analyzed ...
Tülay Yağmur
doaj   +1 more source

Climate Warming Amplifies the Contribution of High‐Altitude Cold Regions to Global Carbonate Weathering Carbon Sink

Earth's Future, Volume 14, Issue 4, April 2026.
Abstract Carbonate weathering carbon‐sink (CWCS) is a critical yet inaccurately quantified component of terrestrial carbon sequestration. However, the mechanisms through which climate change and vegetation dynamics drive the spatial heterogeneity of CWCS remain unclear.
Junhan Li, Xiaoyong Bai, Chaojun Li, Yue Li, Chen Ran, Sirui Zhang, Lian Xiong, Chaochao Du, Xiaodong Yuan, Jingjing Liao, Yuanhuan Xie   +10 more
wiley   +1 more source

Binet’s formula for operator-valued recursive sequences and the operator moment problem

Extracta Mathematicae
We derive a Binet-type formula for operator-valued sequences satisfying linear recurrence relations, extending the classical scalar case to the setting of bounded operators on Hilbert spaces.
A. Ech-charyfy, A. Ghanmi, K. Idrissi, A. Salhi   +3 more
doaj   +1 more source

A note on $(a,b)$-Fibonacci sequences and specially multiplicative arithmetic functions [PDF]

Mathematica Bohemica
A specially multiplicative arithmetic function is the Dirichlet convolution of two completely multiplicative arithmetic functions. The aim of this paper is to prove explicitly that two mathematical objects, namely $(a,b)$-Fibonacci sequences and ...
Emil Daniel Schwab, Gabriela Schwab
doaj   +1 more source

Beyond the Pulmonary Functions: Altered Cognitive–Motor Performance and Motor Imagery in Children With Bronchiectasis

Pediatric Pulmonology, Volume 61, Issue 3, March 2026.
ABSTRACT Background Bronchiectasis (BE) is a chronic obstructive pulmonary disease characterized by bronchial dilatation and structural damage due to persistent inflammation and infections. While pulmonary impairments in BE are extensively documented, cognitive‐motor functions and motor imagery in children with BE remain understudied.
Aysenur Temizel Tombul, Hilal Denizoglu Kulli, Hikmet Ucgun, Meltem Kaya, Erkan Cakir   +4 more
wiley   +1 more source

New Results on Negative-Indexed Pell Numbers via Matrix Methods

Cumhuriyet Science Journal
In this study, we investigate the Pell and Pell–Lucas numbers sequences and construct matrices whose elements are defined using negative indices of these sequences through Binet’s formula. Identities involving negative-indexed Pell and Pell–Lucas numbers
İbrahim Gökcan, Ümmügülsün Çağlayan, Ali Hikmet Değer   +2 more
doaj   +1 more source

A Generalized Binet Formula That Counts the Tilings of a (2 x n)-board

Integers, 2018
See the abstract in the attached pdf.
Reza Kahkeshani, Meysam Arab
openaire   +2 more sources