Results 121 to 130 of about 18,643 (267)

Certain Polynomials with Weighted Sums

open access: yesJournal of the Chosun Natural Science, 2015
AbstractIn this note, we provide some examples of polynomials z n −p(z), where , and , a k ≥ 0 for eachk such that p(z) has all its zeros on |z|=c 1, and wedenote C(r) by the circle of radius r with center the ori-gin. It follows from Enestrm-Kakeya theorem [1] (see p.136 of [1] for the statement and its proof) to(1)where , a k ≥ 0 for each k that all
openaire   +2 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

A conjecture of Schoenberg

open access: yesJournal of Inequalities and Applications, 1999
For an arbitrary polynomial with the sum of all zeros equal to zero, , the quadratic mean radius is defined by Schoenberg conjectured that the quadratic mean radii of and satisfy where equality holds if and only if the zeros all lie on a straight ...
Ivanov KG, Sharma A, de Bruin MG
doaj  

Sum and Weighted Sum Formulas for Fibonacci and Lucas Quaternions

open access: yesAksaray University Journal of Science and Engineering
Fibonacci and Lucas quaternions are deeply studied in the literature after its definition by Horadam in 1963. Binet formula, generation function, Cassini, Catalan, Honsberger, and other identities for these sequences studied in different quaternion algebra types like split quaternion algebra, dual quaternion algebra, etc.
openaire   +3 more sources

Overview of molecular signatures of senescence and associated resources: pros and cons

open access: yesFEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas   +6 more
wiley   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

open access: yesFEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz   +9 more
wiley   +1 more source

Complete γ-th Moment Convergence for Weighted Sums Under WOD Setup

open access: yesJournal of Mathematics
By utilizing the Rosenthal-type maximal moment inequality and truncation method, we mainly investigate the complete γ-th moment convergence for weighted sums of widely orthant dependent random variables in this paper.
Qian Zhang, Yi Wu
doaj   +1 more source

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