Results 91 to 100 of about 157,023 (195)

A Class of Sheffer Sequences of Some Complex Polynomials and Their Degenerate Types

open access: yesMathematics, 2019
We study some properties of Sheffer sequences for some special polynomials with complex Changhee and Daehee polynomials introducing their complex versions of the polynomials and splitting them into real and imaginary parts using trigonometric polynomial ...
Dojin Kim
doaj   +1 more source

Degenerate ordered Bell numbers and polynomials associated with umbral calculus

open access: yes, 2017
In this paper, we study degenerate ordered Bell polynomials with the viewpoint of Carlitz’s degenerate Bernoulli and Euler polynomials and derive by using umbral calculus some properties and new identities for the degenerate ordered Bell polynomials ...
Taekyun Kim   +3 more
semanticscholar   +1 more source

Suppression of reed canarygrass by assisted succession: A sixteen‐year restoration experiment

open access: yesJournal of Applied Ecology, Volume 61, Issue 8, Page 1805-1816, August 2024.
Invasive species management and the restoration of target plant communities can be aided by assisting successional trajectories that have stalled. We document a restoration strategy for forests invaded by shade‐intolerant invaders that is both effective and economical, as only a simple site preparation and single planting effort is required ...
Kattia Palacio‐Lopez   +7 more
wiley   +1 more source

Some identities for umbral calculus associated with partially degenerate Bell numbers and polynomials

open access: yes, 2017
In this paper, we study partially degenerate Bell numbers and polynomials by using umbral calculus. We give some new identities for these numbers and polynomials which are associated with special numbers and polynomial. c ©2017 All rights reserved.
Taekyun Kim   +3 more
semanticscholar   +1 more source

Performance of QUiPP App v.2 tool for prediction of preterm birth in asymptomatic high‐risk women attending preterm specialist clinic: external validation study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 64, Issue 1, Page 71-78, July 2024.
ABSTRACT Objective To validate externally the QUiPP App v.2 algorithms in an independent cohort of high‐risk asymptomatic women attending a preterm birth (PTB) surveillance clinic in Ireland. Methods This was a retrospective, single‐center, observational study assessing discrimination and calibration of the QUiPP App v.2 at six predetermined clinical ...
L. Creswell   +4 more
wiley   +1 more source

A rising tide that lifts all boats: Long‐term effects of the Alaska Permanent Fund Dividend on poverty

open access: yesPoverty &Public Policy, Volume 16, Issue 2, Page 126-145, June 2024.
Abstract Although not designed as a social program to redistribute income, the Alaska Permanent Fund Dividend (PFD) has been reducing poverty by providing equal annual payments to nearly all state residents for over 40 years. We examine direct effects of the PFD on Alaska poverty rates since 1990, using US Census and American Community Survey Public ...
Matthew Berman
wiley   +1 more source

Bernoulli polynomials of the second kind and their identities arising from umbral calculus

open access: yes, 2016
In this paper, we study the Bernoulli polynomials of the second kind with umbral calculus viewpoint and derive various identities involving those polynomials by using umbral calculus. c ©2016 All rights reserved.
Taekyun Kim   +3 more
semanticscholar   +1 more source

Using explainable machine learning methods to evaluate vulnerability and restoration potential of ecosystem state transitions

open access: yesConservation Biology, Volume 38, Issue 3, June 2024.
Abstract Ecosystem state transitions can be ecologically devastating or be a restoration success. State transitions are common within aquatic systems worldwide, especially considering human‐mediated changes to land use and water use. We created a transferable conceptual framework to enable multiscale assessments of state resilience and early warnings ...
John T. Delaney, Danelle M. Larson
wiley   +1 more source

Identities related to the Stirling numbers and modified Apostol-type numbers on Umbral Calculus

open access: yes, 2017
By using umbral calculus and umbral algebra methods, we derive several interesting identities and relations related to the modi ed and uni cation of the Bernoulli, Euler and Genocchi polynomials and numbers and the generalized (β-) Stirling numbers of ...
T. Komatsu, Y. Simsek
semanticscholar   +1 more source

Experimentally testing animal responses to prescribed fire size and severity

open access: yesConservation Biology, Volume 38, Issue 3, June 2024.
Abstract Deserts are often highly biodiverse and provide important habitats for many threatened species. Fire is a dominant disturbance in deserts, and prescribed burning is increasingly being used by conservation managers and Indigenous peoples to mitigate the damaging effects of climate change, invasive plants, and land‐use change. The size, severity,
Tim S. Doherty   +4 more
wiley   +1 more source

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