Results 71 to 80 of about 9,684 (199)

Some properties of a modified Hilbert transform

open access: yesComptes Rendus. Mathématique
Recently, Steinbach et al. introduced a novel operator $\mathcal{H}_T: L^2(0,T) \rightarrow L^2(0,T)$, known as the modified Hilbert transform. This operator has shown its significance in space-time formulations related to the heat and wave equations. In
Ferrari, Matteo
doaj   +1 more source

Measuring maternal line selection driven by differential survival in ex situ collections for plant conservation

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Ex situ plant collections may be increasingly needed to protect representative samples of threatened or rare species and provide plant material for conservation translocation. A primary problem in these ex situ collections is loss of intraspecific variation due to plant death. Different management actions would be required depending on whether
Rebecca Sucher   +6 more
wiley   +1 more source

An optimization approach for dynamical Tucker tensor approximation

open access: yesResults in Applied Mathematics, 2019
An optimization-based approach for Tucker tensor approximation of parameter-dependent data tensors and solutions of tensor differential equations with low Tucker rank is presented.
Lukas Exl
doaj   +1 more source

Harnessing Genomic Information for Identifying the Geographic Origin of Five North American Tree Species in Trade

open access: yesEvolutionary Applications, Volume 19, Issue 8, August 2026.
ABSTRACT Genomic tools for traceability of wood products offer a powerful tool to support sustainable forestry, fight illegal logging, and improve conservation efforts. Traditional identification methods (e.g., wood anatomy, spectroscopy) are limited in resolution or scope, but genomic approaches can infer both species identity and geographic origin ...
Pauline Hessenauer   +10 more
wiley   +1 more source

Food Gifting and Household Food Security

open access: yesReview of Development Economics, Volume 30, Issue 3, Page 2054-2066, August 2026.
ABSTRACT Food gifting provides an important means of risk sharing in agrarian economies where farming households have limited access to formal credit and insurance markets. Food gifting is also an important source of food for households that are struggling with food scarcity.
Shaoyan Sun, Henry An, Philippe Marcoul
wiley   +1 more source

Kdo je Hans Albert?

open access: yesTeorie vědy, 2014
recenze /// review: Robert ZIMMER - Martin Morgenstern, Gespräche mit Hans Albert. Münster: LIT Verlag 2011, 168 s.
Jitka Paitlová
doaj  

Analytic torsion of nilmanifolds with (2, 3, 5) distributions

open access: yesAnalysis and Geometry in Metric Spaces
We consider generic rank two distributions on five-dimensional nilmanifolds and show that the analytic torsion of their Rumin complex coincides with the Ray-Singer torsion.
Haller Stefan
doaj   +1 more source

Morgenstern e a exatidão dos dados contábeis = Morgenstern and the accuracy of accouting data

open access: yesEnfoque, 2010
O trabalho discorre essencialmente sobre a noção de erro, fazendo um estudo detalhado decomo o erro é tratado nas ciências e analisa a fidedignidade dos dados nas ciências contábeis.Por objetivos tem-se: apontar, analisar e avaliar os problemas ...
Nelson Hein, Adriana Kroenke
doaj  

Classification results for polyharmonic helices in space forms

open access: yesComptes Rendus. Mathématique
We derive various classification results for polyharmonic helices, which are polyharmonic curves whose geodesic curvatures are all constant, in space forms.
Branding, Volker
doaj   +1 more source

Chemie und Pharmazie in die Nachhaltigkeit einbetten

open access: yesAngewandte Chemie, Volume 138, Issue 29, 13 July 2026.
Chemie und Pharmazie sind mit ihren Produkten und Prozessen grundlegend für unseren hohen Lebensstandard. Es ist wesentlich, ihre Verbindung mit der Nachhaltigkeit zu verstehen, damit sie auf nachhaltige Weise nachhaltig zur Nachhaltigkeit beitragen können.
Klaus Kümmerer
wiley   +1 more source

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