Results 71 to 80 of about 3,259 (178)

A Family of Generalized Legendre-Based Apostol-Type Polynomials

open access: yesAxioms, 2022
Numerous polynomials, their extensions, and variations have been thoroughly explored, owing to their potential applications in a wide variety of research fields.
Talha Usman   +3 more
doaj   +1 more source

(Discrete) Almansi Type Decompositions: An umbral calculus framework based on $\mathfrak{osp}(1|2)$ symmetries

open access: yes, 2011
We introduce the umbral calculus formalism for hypercomplex variables starting from the fact that the algebra of multivariate polynomials $\BR[\underline{x}]$ shall be described in terms of the generators of the Weyl-Heisenberg algebra. The extension of $
Abul-ez   +39 more
core   +1 more source

Impact of endometrial thickness on reproductive outcome in fresh and frozen–thawed embryo transfer: systematic review and meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 3, Page 271-281, September 2025.
ABSTRACT Objective To evaluate the impact of endometrial thickness on the reproductive outcomes of embryo transfer (ET) treatments using both cut‐off‐based meta‐analysis and meta‐analysis of proportions. Methods This was a systematic review and meta‐analysis of comparative studies (randomized controlled trials, cohort studies, case–control studies) and
F. Pérez‐Milán   +10 more
wiley   +1 more source

External validation of QUiPP App in three independent European cohorts of symptomatic women

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 2, Page 163-174, August 2025.
ABSTRACT Objective To validate externally the QUantitative Innovation in Predicting Preterm birth (QUiPP) App v.2 for the prediction of spontaneous preterm birth (sPTB) in symptomatic women attending tertiary care in Europe. Methods The QUiPP App v.2 was validated in three independent datasets: a prospective European multicenter cohort across five ...
A. M. Fischer   +8 more
wiley   +1 more source

Voigt Transform and Umbral Image

open access: yesMathematical and Computational Applications, 2020
In this paper, we show that the use of methods of an operational nature, such as umbral calculus, allows achieving a double target: on one side, the study of the Voigt function, which plays a pivotal role in spectroscopic studies and in other ...
Silvia Licciardi   +3 more
doaj   +1 more source

The Response of the Thermosphere to the 26 December 2019 Solar Eclipse

open access: yesGeophysical Research Letters, Volume 52, Issue 14, 28 July 2025.
Abstract This study investigates thermospheric response to the 2019 solar eclipse, focusing on temperature and neutral mass density variations at Wuhan and Beijing. The method proposed by Li et al. (2023, https://doi.org/10.1029/2022ja030988) to derive thermospheric parameters from electron density profiles was employed.
Shaoyang Li   +5 more
wiley   +1 more source

Special Numbers and Polynomials Including Their Generating Functions in Umbral Analysis Methods

open access: yesAxioms, 2018
In this paper, by applying umbral calculus methods to generating functions for the combinatorial numbers and the Apostol type polynomials and numbers of order k, we derive some identities and relations including the combinatorial numbers, the Apostol ...
Yilmaz Simsek
doaj   +1 more source

Temperature Conditions in Artificial Sea Turtle Nests: Toward Optimized Hatchery Management

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
This study examined how environmental and management factors, such as wall distance and egg numbers, influence nest temperatures of Olive Ridley sea turtles in a hatchery on the Pacific coast of Guatemala. ABSTRACT Climate change poses a significant threat to species with temperature‐dependent sex determination, such as sea turtles.
Jennifer A. Carbonell Ellgutter   +5 more
wiley   +1 more source

Notional Geological Traverses, Station Activities, and Sample Collection on Mons Malapert, Lunar South Polar Region

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.
Abstract The geology of a potential Artemis landing site on Mons Malapert is examined using remote sensing techniques and lessons learned from Apollo missions to the lunar surface. Orthomosaics, digital terrain models, illumination models, thermal conditions, crater size‐frequency distribution analyses, geomorphological mapping, spectral and ...
David A. Kring   +21 more
wiley   +1 more source

A computational framework to characterize and compare the tonal repertoires of toothed whales

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 7, Page 1350-1368, July 2025.
Abstract Toothed whales, despite being one of the most acoustically specialized lineages of vertebrates, lack detailed vocal repertoire characterizations comparable to those of songbirds and primates. Current descriptions often lack standardization, limiting interspecies and intraspecies comparisons critical for understanding the contribution of ...
Maia Austin   +7 more
wiley   +1 more source

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