Results 81 to 90 of about 622,029 (275)

El Neolítico en el País Vasco [PDF]

open access: yes, 1990
Se plantea el problema de la extensión e incidencia del Neolítico en territorio vasco, revisándose el alcance y cronología de los cambios en los modos de vida de las poblaciones y la adquisición de nuevas tecnologías de explotación económica del medio e ...
Ana Cava
core  

La economía social ante la actual crisis económica en la comunidad autónoma del País Vasco

open access: yes, 2016
El presente articulo analiza la evolucion socio-economica del conjunto de entidades que configuran el sector de la economia social en el Pais Vasco durante el periodo de crisis comprendido entre 2008 y 2014.
Ignacio Bretos Fernández   +1 more
semanticscholar   +1 more source

Tubular Nanostructures from Large‐Pore 2D Covalent Organic Frameworks

open access: yesAngewandte Chemie, Volume 137, Issue 23, June 2, 2025.
A wavy mesoporous 2D covalent organic framework (COF) has been synthesized with a 6‐nm hexagonal pore lattice. This COF forms non‐covalent tubular domains that can be separated by mild sonication, yielding a family of tubular COF nanostructures that combine a 1D morphology with accessible mesopores.
Joaquín Almarza   +8 more
wiley   +2 more sources

Immobilization of Enzyme–Polymer Hybrids and Nanozymes Through Electrostatic Interactions: Toward Multicatalytic Microreactors with Controlled Nanoarchitecture

open access: yesSmall Science, EarlyView.
A modular hybrid membrane is constructed via a layer‐by‐layer strategy, integrating glucose oxidase/horseradish peroxidase or glucose oxidase/nanozyme‐loaded microreactors within alternating polyelectrolyte layers on a calcium carbonate core. This hierarchical design enables precise spatial confinement of catalytic units, facilitating efficient cascade
Aitor Ontoria   +7 more
wiley   +1 more source

The conceptualization of time and the constancy of the speed of light [PDF]

open access: yesEur. J. Phys. 26 (2005) S117-S123, 2005
In this work we show that the null result of the Michelson-Morley experiment in vacuum is deeply connected with the notion of time. It can be deduced without any mathematics only from the assumption that all good clocks can be used to measure time with the same results, independently of the machinery involved in their manufacturing.
arxiv   +1 more source

Hyperspectral Raman imaging to understand patterns in dried biofluids in Alzheimer's disease

open access: yesVIEW, EarlyView.
Raman spectroscopy is commonly used to identify biomarkers in biological fluids, often focusing on the outer ring of dried droplets due to molecular accumulation from the coffee ring effect. However, this approach may overlook important spectral information, so hyperspectral Raman mapping is used to analyze the entire droplet and identify optimal ...
Eneko Lopez   +8 more
wiley   +1 more source

El Epipaleolítico en el País Vasco. [PDF]

open access: yes, 1990
El Aziliense se desarrolla desde finales del Dryas II en el Pirineo navarro, aunque más tardíamente en la vertiente cantábrica, pareciendo prolongarse hasta el Preboreal.
Eduardo Berganza
core   +1 more source

Radiografía de la economía gipuzkoana en materia de conciliación de la vida familiar y laboral

open access: yesEuropean Public & Social Innovation Review, 2018
En su análisis de la conciliación de la vida familiar y laboral, la economía feminista se ha ocupado sobre todo de los hogares y del sector público. Es también desde estos ámbitos desde donde ha abordado el tema de la corresponsabilidad entendida en un ...
Mertxe Larrañaga,   +3 more
doaj   +1 more source

Metodologías en reintegraciones volumétricas de prefabricados con carácter decorativo

open access: yesESTOA: Revista de la Facultad de Arquitectura y Urbanismo de la Universidad de Cuenca, 2022
Los elementos decorativos prefabricados en Patrimonio Construido tienen una gran importancia estética, sobre todo en las edificaciones de finales del s. XIX y principios del s. XX.
Juan Bermejo-Soler   +6 more
doaj   +1 more source

Invariant Integrals on Topological Groups [PDF]

open access: yesarXiv, 2020
We generalize the fixed-point property for discrete groups acting on convex cones given by Monod in \cite{monod} to topological groups. At first, we focus on describing this fixed-point property from a functional point of view, and then we look at the class of groups that have it.
arxiv  

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