Results 31 to 40 of about 23,634 (191)

Reconstructing Late Pleistocene to Prehistorical Holocene Geomagnetic Field Variations From La Palma Lava Flows (Canary Islands, Spain): Unraveling Viscous Components

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract We present new vector paleomagnetic data from 13 radiometrically dated lava‐flows in southern La Palma (Canary Islands) spanning from 1 to 56 ka, which covers most of the Late Pleistocene to prehistoric Holocene volcanic record in the island.
Eva Vernet   +6 more
wiley   +1 more source

Surface roughness and interfacial slip boundary condition for quartz crystal microbalances [PDF]

open access: yes, 2003
The response of a quartz crystal microbalance (QCM) is considered using a wave equation for the substrate and the Navier-Stokes equations for a finite liquid layer under a slip boundary condition.
Daikhin L.   +7 more
core   +1 more source

Shedding Light on the Precatalytic Mixture of Pd(OAc)2 and Cooperating Bipyridone Ligands for the C─H Functionalization of Arenes

open access: yesChemCatChem, Volume 18, Issue 1, 15 January 2026.
The reactions of the common palladium precursors Pd(OAc)2 and PdCl2 and cooperating bipyridone ligands leads to well defined complexes which are general precatalysts for the direct C─H arylation of arenes, more active than Pd(OAc)2/ligand mixtures in nonpolar solvents.
Francisco Villalba   +2 more
wiley   +1 more source

Diseño y usabilidad de IndagApp: una app para la enseñanza de las ciencias por indagación

open access: yesRIED: Revista Iberoamericana de Educación a Distancia
La indagación es una metodología didáctica que promueve el desarrollo de competencias científicas y el aprendizaje significativo de las ciencias. Sin embargo, su implementación en el contexto educativo español se enfrenta a diversas barreras, como la ...
Iraya Yánez Pérez   +2 more
doaj   +1 more source

iNaturalist projects represent a valuable resource for aggregating plant observations and engaging society: A case study of the Flora of Mongolia project

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 1, Page 26-37, January 2026.
Citizen science – collaboration between scientists and the public – has the potential to advance biodiversity monitoring. Using a case study from Mongolia, called the Flora of Mongolia project in iNaturalist, we illustrate how crowd‐sourced biodiversity data fills gaps of plant diversity in Mongolia.
Shukherdorj Baasanmunkh   +19 more
wiley   +1 more source

Five Frontiers for Science and Practice of Ecosystem Restoration in East African Forest Landscapes 东非森林景观生态系统恢复的科学与实践:五大前沿

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 534-545, December 2025.
Implementing ecosystem restoration remains challenging for policymakers and practitioners. Focusing on Rwanda, we used a participatory world‐café approach involving scientists, practitioners, and decision‐makers working on ecosystem restoration to identify emerging challenges and future research priority areas. We identified five critical frontiers for
Dula W. Duguma   +33 more
wiley   +1 more source

Heisenberg‐smooth operators from the phase‐space perspective

open access: yesMathematische Nachrichten, Volume 298, Issue 8, Page 2845-2866, August 2025.
Abstract Cordes' characterization of Heisenberg‐smooth operators bridges a gap between the theory of pseudo‐differential operators and quantum harmonic analysis (QHA). We give a new proof of the result by using the phase‐space formalism of QHA. Our argument is flexible enough to generalize Cordes' result in several directions: (1) we can admit general ...
Robert Fulsche, Lauritz van Luijk
wiley   +1 more source

« Ubu roi », entre le secret et la confession

open access: yesSymbolon, 2020
“King Ubu”, Between Secret and Confession Long after December 10, 1896, date of the outrageous premiere of “Ubu Roi” at the Théâtre de L´Œuvre in Paris, the circumstances that made Alfred Jarry the author of this play, whose proto-version, “Les Polonais”,
Ioana Alexandrescu
doaj  

Mística y felicidad [PDF]

open access: yes, 2010
Comunicación presentada en el Curso "La felicidad humana", dentro de los Cursos de verano UBU ...
Stubbemann, Claire Marie
core  

Diagonalization of bosonic quadratic Hamiltonians by Bogoliubov transformations

open access: yes, 2015
We provide general conditions for which bosonic quadratic Hamiltonians on Fock spaces can be diagonalized by Bogoliubov transformations. Our results cover the case when quantum systems have infinite degrees of freedom and the associated one-body kinetic ...
Nam, Phan Thành   +2 more
core   +1 more source

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