Results 51 to 60 of about 158,660 (220)
(a) European river invertebrate communities showed an average increase in local richness over time (1994–2023), indicating partial local recovery following the alleviation of anthropogenic stress (e.g., point‐source pollution). However, this local recovery was not accompanied by increases in β‐diversity, likely due to persistent, unaddressed stressors,
Daniela Cortés‐Guzmán +9 more
wiley +1 more source
Superconducting gap and vortex lattice of the heavy fermion compound CeCu_2Si_2 [PDF]
The order parameter and pairing mechanism for superconductivity in heavy fermion compounds are still poorly understood. Scanning tunneling microscopy and spectroscopy at ultra-low temperatures can yield important information about the superconducting ...
Condensed Matter Physics +10 more
core +4 more sources
Summary Genomic tools have advanced our understanding of species and population structure, but distinguishing neutral from adaptive evolution remains challenging due to limited methods for measuring a broad spectrum of phenotypic traits. We used spectroscopic data from preserved leaves to test for adaptive divergence among populations of live oaks ...
Mariana S. Hernández‐Leal +3 more
wiley +1 more source
Se estudia el efecto de las características microestructurales de la aleación MA956 obtenidas en algunas de las etapas intermedias de su procesado, sobre sus propiedades mecánicas a temperatura ambiente y a bajas temperaturas.
J. Chao, G. González-Doncel
doaj +1 more source
Proceso de tintura del poliéster a bajas temperaturas: cinética de tintura con colorantes dispersos. [PDF]
Este trabajo propone un proceso de tintura para el poliéster, a bajas temperaturas (40°C y menores), con colorantes dispersos, utilizando una microemulsión formada por una pequeña proporción de solvente orgánico (halogenuro de alquilo) y un ...
Carrión Fité, Francisco Javier
core
El premio Wheatley de la American Physical Society: una aventura patagónica [PDF]
A principios de 1990, la American Physical Society (APS) aprobó la creación de un premio en reconocimiento a la dedicación de físicos norteamericanos que hubieran realizado, contribuciones al desarrollo Física en países del Tercer Mundo.
Fasano, Yanina
core
Proximity effect and strong coupling superconductivity in nanostructures built with an STM
We present high resolution tunneling spectroscopy data at very low temperatures on superconducting nanostructures of lead built with an STM. By applying magnetic fields, superconductivity is restricted to length scales of the order of the coherence ...
A. Izquierdo +25 more
core +1 more source
Tunneling spectroscopy of the superconducting state of URu2Si2 [PDF]
We present measurements of the superconducting gap of URu$_2$Si$_2$ made with scanning tunneling microscopy (STM) using a superconducting tip of Al. We find tunneling conductance curves with a finite value at the Fermi level.
Aoki, D. +6 more
core +2 more sources
Plant Responses to Anomalous Heat and Drought Events in the Sonoran Desert
What are the impacts of region‐wide heat and drought events on desert vegetation? This multi‐scale assessment shows that columnar cacti and succulent trees show acute plant stress across the Sonoran Desert. The expected increased frequency of heat and drought events will likely have landscape‐wide impacts that could fundamentally reshape populations of
Benjamin T. Wilder +10 more
wiley +1 more source
Las especies híbridas se adaptan mejor a diferentes ambientes que sus progenitores. El pino híbrido (pino híbrido PEE×PCH) entre Pinus elliottii Engelm var. elliottii × Pinus caribaea Morlet var. hondurensis (Sénéclauze) W.H.
Cristian Damian Schoffen +4 more
doaj +1 more source

