Results 71 to 80 of about 144 (134)

Umbral calculus in Ore extensions

Journal of Pure and Applied Algebra, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Benouaret, Chahrazed, Salinier, Alain
openaire   +4 more sources

Identifying Key Biodiversity Areas Based on Distinct Genetic Diversity

Molecular Ecology Resources, Volume 26, Issue 2, February 2026.
ABSTRACT Key Biodiversity Areas (KBAs) are sites that contribute significantly to the global persistence of biodiversity. Distinct genetic diversity has been introduced as one of the metrics to estimate whether a site holds a threshold proportion of a species' global genetic diversity during the KBA identification process.
Sarah Christin Gronefeld, Heriberto López, Robin Schmidt, Axel Hochkirch   +3 more
wiley   +1 more source

Key drivers of at‐vessel mortality in demersal sharks

Conservation Biology, Volume 40, Issue 1, February 2026.
Abstract Chondrichthyans are highly vulnerable to fisheries overexploitation, and postcapture mortality poses a significant threat to most species. Global bycatch mitigation guidelines recommend adopting hierarchical decision‐making approaches tailored to species‐specific vulnerabilities and socioeconomic and regulatory contexts.
David Ruiz‐García, Claudio Barría, Juan A. Raga, David March   +3 more
wiley   +1 more source

A Family of Hybrid Functions Generated by the Composition of Bessel and Mittag–Leffler Functions

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we employ a symbolic technique to introduce a new family of Mittag–Leffler–Bessel functions (MLBFs), formed by compositionally combining the classical Bessel functions of the first kind with the three‐parameter Mittag–Leffler function.
Maged G. Bin-Saad, Waleed K. Mohammed, Guotao Wang   +2 more
wiley   +1 more source

Multiple Binomial‐Type Operators and Their Approximation Properties

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we introduce multiple binomial‐type operators (multiple Bernstein–Sheffer operators) and investigate their approximation properties. These properties are analyzed by means of a Korovkin‐type theorem. Furthermore, by using the first and second modulus of continuity together with Peetre’s κ‐functional, we establish the rate of convergence ...
Mehmet Ali Özarslan, Bayram Çekim, Sezin Çit, Smritijit Sen   +3 more
wiley   +1 more source

Variations in Ionospheric Parameters Associated With the 20–21 May 2012 Annular and 21 August 2017 Total Solar Eclipses

The Scientific World Journal, Volume 2026, Issue 1, 2026.
This study investigates the ionospheric effects of the annular solar eclipse (20–21 May 2012) and total solar eclipse (21 August 2017) across midlatitude stations, analyzing critical parameters: F2‐layer critical frequency (foF2), peak height (hmF2), and total electron content (TEC).
Manghang Limbu, Samyam Pudasaini, Sujan Prasad Gautam, Binod Adhikari, Ashok Silwal, Iva Kumari Lamichhane, Rohit Bhattarai, Pitri Bhakta Adhikari, K.-W.-A. Chee   +8 more
wiley   +1 more source

How Framing of Income Eligibility Guidelines Affect Attitudes Towards Program Access and Burdens in Health and Health‐Protective Programs

World Medical &Health Policy, Volume 17, Issue 4, Page 898-911, December 2025.
ABSTRACT Policymakers organize and frequently communicate safety net policies, such as eligibility guidelines around administrative categories. The potential effects on how these thresholds are communicated remain empirically unexplored. We examined if communication either in terms of the Federal Poverty Line (FPL)‐ or dollar‐form alters preferences ...
Simon F. Haeder, Donald P. Moynihan
wiley   +1 more source

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River

Conservation Biology, Volume 39, Issue 6, December 2025.
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead, Caroline C. Arantes, Kirk O. Winemiller, Leslie C. Kelso‐Winemiller, Jonas Alves de Oliveira, Miguel Petrere Jr, Carlos E. C. Freitas   +6 more
wiley   +1 more source

Managing Risk, Reinforcing Environmental Racism: The Biopolitics of Pesticide Regulation in California Agriculture

Review of Policy Research, Volume 42, Issue 6, Page 1509-1524, November 2025.
ABSTRACT This paper provides a retrospective on California's oversight of 1,3‐dichloropropene (1,3‐D). It utilizes archival documents, including internal memos, emails, and risk assessments, to demonstrate how the state's Department of Pesticide Regulation consistently expanded allowable 1,3‐D use while presenting each policy change as scientifically ...
Kaitlyn Alvarez Noli
wiley   +1 more source

Umbral Calculus and Cancellative Semigroup Algebras

Zeitschrift für Analysis und ihre Anwendungen, 2000
We describe some connections between three different fields: combinatorics (umbral calculus), functional analysis (linear functionals and operators) and harmonic analysis (convolutions on group-like structures).
openaire   +4 more sources