Results 51 to 60 of about 27,700 (212)
Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract Solar eclipses provide unique opportunities to investigate geospace dynamics driven by rapid, localized reductions in solar radiation. On December 4th $4\text{t}\text{h}$, 2021, a total solar eclipse occurred over West Antarctica during substorms.
Yu Hong +11 more
wiley +1 more source
Umbral Methods and Harmonic Numbers
Axioms, 2018 The theory of harmonic-based functions is discussed here within the framework of umbral operational methods. We derive a number of results based on elementary notions relying on the properties of Gaussian integrals.
Dattoli G. +3 more
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Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz +5 more
wiley +1 more source
Identities of Degenerate Poly-Changhee Polynomials Arising from λ-Sheffer Sequences
Journal of Mathematics, 2022 In the 1970s, Gian-Carlo Rota constructed the umbral calculus for investigating the properties of special functions, and by Kim-Kim, umbral calculus is generalized called λ-umbral calculus.
Sang Jo Yun, Jin-Woo Park
doaj +1 more source
Formal Calculus and Umbral Calculus [PDF]
The Electronic Journal of Combinatorics, 2010 We use the viewpoint of the formal calculus underlying vertex operator algebra theory to study certain aspects of the classical umbral calculus. We begin by calculating the exponential generating function of the higher derivatives of a composite function, following a very short proof which naturally arose as a motivating computation related to a ...
openaire +4 more sources
Functional Ecology, Volume 40, Issue 7, Page 1960-1978, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Heatwaves are becoming increasingly frequent across the Mediterranean and pose critical challenges for small passerines, yet the physiological and morphological limits to their resilience remain poorly understood.
Erick González‐Medina +6 more
wiley +1 more source
Retos para acompañar las trayectorias y transiciones entre la educación inicial y primaria
Educación y CiudadEste artículo analiza las concepciones, sentidos y retos que emergen de los discursos sobre las transiciones educativas del nivel inicial al primario, momentos cruciales que pueden influir positiva o negativamente en las trayectorias educativas de los ...
Nataly Restrepo Restrepo +2 more
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Review of Policy Research, Volume 43, Issue 4, July 2026.ABSTRACT China's poverty alleviation campaign is significant. Over the past four decades, the number of people in China living below the international extreme‐poverty line fell by close to 800 million, accounting for nearly three‐quarters of the global reduction in extreme poverty.
Zhiqi Xu, Wil Hout
wiley +1 more source
Ciudades de los Andes: la calle como memoria y como umbral
ConfluenzeThe key objective of this article is to reflect upon the Rocafuerte Street and the Streets’ network neighboring the old town in Quito, which has been supporting a rich ensemble of social and cultural relationships that are characteristic features of the ...
Eduardo Kingman Garcés, Erika Bedón C.
doaj +1 more source