Results 81 to 90 of about 166,207 (201)

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.
Andrea Brini, Marilena Barnabei, Giorgio Nicoletti   +2 more
openaire   +2 more sources

Scaling up ocean conservation through recognition of key biodiversity areas in the Southern Ocean from multispecies tracking data

Conservation Biology, Volume 39, Issue 1, February 2025.
Abstract Biodiversity is critical for maintaining ecosystem function but is threatened by increasing anthropogenic pressures. In the Southern Ocean, a highly biologically productive region containing many endemic species, proactive management is urgently needed to mitigate increasing pressures from fishing, climate change, and tourism.
Sarah L. Becker, Charlotte Boyd, Jonathan M. Handley, Ben Raymond, Ryan Reisinger, Yan Ropert‐Coudert, Nora Apelgren, Tammy E. Davies, Mary‐Anne Lea, Mercedes Santos, Philip N. Trathan, Anton P. Van de Putte, Luis A. Huckstadt, Jean‐Benoit Charrassin, Cassandra M. Brooks   +14 more
wiley   +1 more source

Intertwined precariousness and precarity: Disentangling a phenomenon that characterises Spanish youth

International Journal of Social Welfare, Volume 34, Issue 1, January 2025.
Abstract The growth of non‐standard employment has emerged as a crucial factor that contributes to delays and difficulties in young people's transitions to adulthood. Previous studies have demonstrated the importance of multidimensional measures of precariousness.
Lara Maestripieri, Alba Lanau, Roger Soler‐i‐Martí, Míriam Acebillo‐Baqué   +3 more
wiley   +1 more source

Two variable higher-order central Fubini polynomials

Journal of Inequalities and Applications, 2019
Recently, the central Fubini polynomials were introduced in connection with central factorial numbers of the second kind. In this paper, we consider two variable higher-order central Fubini polynomials as a ‘central analogue’ of two variable higher-order
Taekyun Kim, Dae San Kim, Gwan-Woo Jang, Dojin Kim   +3 more
doaj   +1 more source

Umbral calculus associated with Bernoulli polynomials

Journal of Number Theory, 2015
Recently, D. S. Kim and T. Kim have studied applications of um- bral calculus associated with p-adic invariant integrals on Zp (see [6]). In this paper, we investigate some interesting properties arising from umbral calculus. These properties are useful in deriving some identities of Bernoulli polynomials.
Taekyun Kim, Dae San Kim
openaire   +3 more sources

Differential coping capacities underlie the overall resistance of temperate seagrasses to herbivory

Ecosphere, Volume 15, Issue 12, December 2024.
Abstract Grazing can impart long‐lasting changes in vegetated ecosystems. How ecosystems respond to herbivory depends on the ecological and evolutionary histories of their foundational species. The overall ecosystem functioning and associated biodiversity depend on these responses but there is still little understanding on how the intensity and ...
J. Boada, T. M. Smith, A. M. Ricart, T. Alcoverro, M. Pérez, J. Romero, N. Sanmartí, Y. Ontoria, M. Pierrejen, R. Arthur, D. Alonso, M. P. Adams, F. Rossi   +12 more
wiley   +1 more source

Voigt Transform and Umbral Image

Mathematical 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, Rosa Maria Pidatella, Marcello Artioli, Giuseppe Dattoli   +3 more
doaj   +1 more source

The effect of group size on sleep in a neotropical bat, Artibeus jamaicensis

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 341, Issue 10, Page 1097-1110, December 2024.
Research Highlights We combine behavioral and physiological data to show that Jamaican fruit bats (Artibeus jamaicensis) sleeping in groups may sleep longer than individuals sleeping alone, and that behavior can be used to measure some sleep metrics in wild bats.
Alexis M. Heckley, Christian D. Harding, Rachel A. Page, Barrett A. Klein, Yossi Yovel, Clarice A. Diebold, Hannah B. Tilley   +6 more
wiley   +1 more source

Evaluating use of two‐step International Ovarian Tumor Analysis strategy to classify adnexal masses identified in pregnancy: pilot study

Ultrasound in Obstetrics &Gynecology, Volume 64, Issue 6, Page 808-817, December 2024.
ABSTRACT Objectives The primary aim was to validate the International Ovarian Tumor Analysis (IOTA) benign simple descriptors (BDs) followed by the Assessment of Different NEoplasias in the adneXa (ADNEX) model, if BDs cannot be applied, in a two‐step strategy to classify adnexal masses identified during pregnancy. The secondary aim was to describe the
J. Barcroft, M. Pandrich, S. Del Forno, N. Cooper, K. Linton‐Reid, C. Landolfo, D. Timmerman, S. Saso, T. Bourne   +8 more
wiley   +1 more source

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

Axioms, 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