Results 81 to 90 of about 4,010 (267)

A new application of almost increasing sequences

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2019
In this paper, a known result dealing with |N, pn|k summability of infinite series has been generalized to the φ-|N, pn;δ|k infinite series by using an almost increasing sequence.
Ahmet Karakaş
doaj  

Factors for Absolute Weighted Arithmetic Mean Summability of Infinite Series

open access: yesInternational Journal of Analysis and Applications, 2017
In this paper, we proved a general theorem dealing with absolute weighted arithmetic mean summability factors of infinite series under weaker conditions. We have also obtained some known results.
Hüseyin Bor
doaj   +2 more sources

A Note on |A|k Summability Factors for Infinite Series

open access: yesJournal of Inequalities and Applications, 2007
We obtain sufficient conditions on a nonnegative lower triangular matrix A and a sequence λn for the series ∑anλn/nann to be absolutely summable of order k≥1 by A.
Ekrem Savaş, B. E. Rhoades
doaj   +1 more source

Constructing minimal telescopers for rational functions in three discrete variables

open access: yes, 2019
We present a new algorithm for constructing minimal telescopers for rational functions in three discrete variables. This is the first discrete reduction-based algorithm that goes beyond the bivariate case.
Chen, Shaoshi   +4 more
core  

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

open access: yesFEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman   +4 more
wiley   +1 more source

On generalized absolute Cesàro summablity factors

open access: yesFilomat, 1993
In this paper, we prove a known theorem dealing with ?-[C, ?, ?]k summability factors under more weaker conditions. This theorem also includes several new results.
openaire   +3 more sources

Exon 7 splicing of ERα predicts poor prognosis and increases phenotypic heterogeneity in luminal a subtype breast cancer

open access: yesFEBS Open Bio, EarlyView.
ERα splice variant ERα∆7 lacks the C‐terminus, and its expression may change phenotypes of breast cancers. Our results showed that ERα∆7 is found in the luminal A subtype, and elevated ERα∆7 levels are linked to improved cell survival with lower proliferation and migration.
Long Wai Tsui   +10 more
wiley   +1 more source

Matrix metalloproteinase‐9 regulates cell adhesion and membrane protrusive activity of ovarian cancer cells

open access: yesFEBS Open Bio, EarlyView.
Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel   +8 more
wiley   +1 more source

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