Results 131 to 140 of about 224,508 (277)

Astragalus ecomorphology in Quaternary elephantids

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The astragalus plays a fundamental role in the graviportal locomotion of proboscideans, reflecting the biomechanical constraints imposed by large body masses. This study analyses the morphological variability of the astragalus in Quaternary elephantids using linear biometry and 3D geometric morphometrics, incorporating an unpublished ...
Darío Fidalgo   +6 more
wiley   +1 more source

A block solver for the exponentally fitted IIPG-0 method [PDF]

open access: yes, 2011
We consider an exponentially fitted discontinuous Galerkin method for advection dominated problems and propose a block solver for the resulting linear systems.
Zikatanov, Ludmil   +5 more
core  

Underground Lag: Fungal Community and Edaphic Legacies After Disturbance

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Páramos are neotropical mountain ecosystems that regulate water and store large amounts of carbon, but are increasingly degraded by agriculture and grazing. Although native vegetation often recolonizes after abandonment, belowground recovery remains poorly understood.
Wilmer Dajhan Navarrete‐López   +6 more
wiley   +1 more source

XIV Jornada de Recerca 2023. Llibre d’abstracts

open access: yes, 2023
La Facultat de Farmàcia i Ciències de l’Alimentació té com a objectiu contribuir a la salut i al benestar, en tots els àmbits de les ciències farmacèutiques i alimentàries mitjançant la formació de professionals competents, la promoció de la recerca ...
Universitat de Barcelona. Facultat de Farmàcia i Ciències de l'Alimentació
core  

Uncertainty in aquatic greenhouse gas flux estimates arises from subjective processing of floating chamber time series

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Accurate quantification of greenhouse gas (GHG) fluxes from aquatic systems is essential for constraining regional and global carbon budgets. Closed floating chambers are widely used to measure carbon dioxide (CO2) and methane (CH4) fluxes at the water–air interface, yet large uncertainties persist due to subjective processing of chamber time ...
Camille Minaudo   +16 more
wiley   +1 more source

New estimates for the maximal singular integral [PDF]

open access: yes, 2009
"Vegeu el resum a l'inici del document del fitxer adjunt"
Orobitg i Huguet, Joan   +5 more
core  

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

open access: yesLaser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

Schwarz methods for a preconditioned WOPSIP method for elliptic problems [PDF]

open access: yes, 2011
We construct and analyze non-overlapping Schwarz methods for a preconditioned weakly over-penalized symmetric interior penalty (WOPSIP) method for elliptic ...
Sung, Li-Yeng   +5 more
core  

A GIS‐Based Approach to Modeling Carnivore Activity in the Pleistocene Site of Cova del Rinoceront (Iberian Peninsula)

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT A significant methodological difficulty in the interpretation of Pleistocene zooarchaeological assemblages is the identification of taphonomic agents that modify and break bones. Carnivores, in particular, have been a main focus, as competition with carnivores may have affected carcass acquisition opportunities for humans in the past.
Gerard Terrón‐Marín   +3 more
wiley   +1 more source

Weak-type estimates for Haar shift operators: Sharp power on the A(p) characteristic [PDF]

open access: yes, 2009
"Vegeu el resum a l'inici del document del fitxer adjunt"
Hytönen, Tuomas   +5 more
core  

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