Results 71 to 80 of about 3,308 (188)
Temperature Conditions in Artificial Sea Turtle Nests: Toward Optimized Hatchery Management
Ecology 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
More on the umbral calculus, with emphasis on the q-umbral calculus
Journal of Mathematical Analysis and Applications, 1985 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Journal 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
Some Identities of Fully Degenerate r-Dowling Polynomials Arising from λ-Umbral Calculus
MathematicsThis paper introduces fully Dowling polynomials of the first and second kinds, which are degenerate versions of the ordinary Dowling polynomials. Then, several important identities for these degenerate polynomials are derived.
Xiaoxue Li, Siqi Dong, Yuankui Ma
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Some identities of fully degenerate Dowling and fully degenerate Bell polynomials arising from lambda-umbral calculus [PDF]
, 2021 Yuankui Ma +3 more
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The classical umbral calculus: Sheffer sequences
, 2008 Following the approach of Rota and Taylor \cite{SIAM}, we present an innovative theory of Sheffer sequences in which the main properties are encoded by using umbrae. This syntax allows us noteworthy computational simplifications and conceptual clarifications in many results involving Sheffer sequences.
DI NARDO, Elvira +2 more
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A computational framework to characterize and compare the tonal repertoires of toothed whales
Methods 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
Recursive matrices and umbral calculus
Journal of Algebra, 1982 Two major objectives can be seen to guide much recent work in enumeration: (1) to single out a limited variety of recurrences for numerical sequences which will encompass counting problems of wide-enough type; (2) to recover from empirical data an underlying set-theoretic structure which would reveal the source of the given recursion.
Barnabei, Marilena +2 more
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Exploration Behavior Is Consistent and Associated With Foraging Behavior in Island Songbirds
Biotropica, Volume 57, Issue 4, July 2025.We tested the neophobia threshold hypothesis in six landbird species, including four Darwin's finches. Exploration behavior was consistent over time and contexts, with species exhibiting greater foraging diversity showing higher exploratory tendencies.
Jefferson García‐Loor +3 more
wiley +1 more source
A Class of Sheffer Sequences of Some Complex Polynomials and Their Degenerate Types
Mathematics, 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