Results 31 to 40 of about 6,402,216 (211)

Evaluación de la difusividad térmica efectiva en el estado transitorio de una geometría fractal para condiciones de temperatura y flujo de calor constantes

Ciencia Nicolaita, 2023
En este trabajo se comparan dos modelos para calcular la difusividad térmica efectiva usada en simulaciones de fenómenos transitorios con diferencias finitas de medios porosos con geometría fractal del tipo Alfombra de Sierpinsky. Se evalúa la coincidencia entre los resultados obtenidos utilizando estos modelos y simulaciones de elemento finito.
Israel Rosas Yescas, José Eduardo Acosta Cano de los Ríos, Óscar Arturo Chávez López, Carlos Arturo Méndez Herrera, Victor Manuel Ambríz Díaz   +4 more
openaire   +1 more source

Hydrothermal Sealing at Turrialba, Poás, and Rincón de la Vieja Volcanoes (Costa Rica) Promotes Phreatic and Phreatomagmatic Eruptions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.
Abstract Hydrothermal sealing is a mechanism thought to be responsible for challenging‐to‐forecast phreatic and phreatomagmatic eruptions. To better understand this process, we present a study in which we assessed the textural, mineralogical, and physical properties (porosity, permeability, and tensile strength) of blocks of hydrothermal seal that were
Michael J. Heap, Geoffroy Avard, Claire E. Harnett, H. Albert Gilg, James Hickey, Thierry Reuschlé, Fabian B. Wadsworth, Maëlys Moulin, Sophie Pearson‐Grant, J. Maarten de Moor, Emily Mick, Patrick Baud   +11 more
wiley   +1 more source

A New Sulfur and Carbon Degassing Inventory for the Southern Central American Volcanic Arc: The Importance of Accurate Time‐Series Data Sets and Possible Tectonic Processes Responsible for Temporal Variations in Arc‐Scale Volatile Emissions

Geochemistry, Geophysics, Geosystems, Volume 18, Issue 12, Page 4437-4468, December 2017., 2017
Abstract This work presents a new database of SO2 and CO2 fluxes from the Southern Central American Volcanic Arc (SCAVA) for the period 2015–2016. We report ∼300 SO2 flux measurements from 10 volcanoes and gas ratios from 11 volcanoes in Costa Rica and Nicaragua representing the most extensive available assessment of this ∼500 km arc segment.
J. M. de Moor, C. Kern, G. Avard, C. Muller, A. Aiuppa, A. Saballos, M. Ibarra, P. LaFemina, M. Protti, T. P. Fischer   +9 more
wiley   +1 more source

Respuesta mecánica durante la inversión de la deformación en caliente de un acero microaleado

Revista de Metalurgia, 2005
Se ha estudiado el comportamiento mecánico de un acero microaleado con niobio bajo condiciones no monótonas de deformación mediante ensayos de torsión en caliente de doble pasada con cambio de sentido de giro entre la primera y la segunda de ellas. Se ha
D. J. Badiola, I. Gutiérrez
doaj   +1 more source

When is the bait worth the risk? A mechanistic model of a compensatory ecological trap in seabirds

Functional Ecology, Volume 40, Issue 11, Page 3398-3421, November 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological traps occur when organisms preferentially select habitats that reduce fitness. In seabird–fishery systems, fishery‐derived trophic subsidies can increase foraging success, reinforce habitat preference and indirectly enhance reproductive output or recruitment,
Cristóbal Anguita, Alejandro Simeone, Cristián F. Estades   +2 more
wiley   +1 more source

Effects of pasture consumption and obesity on insulin dysregulation and adiponectin concentrations in UK native‐breed ponies

Equine Veterinary Journal, Volume 58, Issue 1, Page 243-255, January 2026.
Abstract Background Insulin dysregulation (ID) and hypoadiponectinaemia (total [adiponectin] <7.9 μg/mL) are risk factors for laminitis. They are sometimes, but not always, associated with obesity. Objectives To investigate the effects of pasture consumption and obesity on ID and circulating total [adiponectin] in ponies.
Marine A. Barnabé, Jonathan Elliott, Patricia A. Harris, Nicola J. Menzies‐Gow   +3 more
wiley   +1 more source

Accidente Isquémico Transitorio [PDF]

, 2015
Información para pacientes sobre el accidente isquémico transitorio, definición, diagnóstico y tratamiento.Información para pacientes sobre o accidente isquémico transitorio, definición, diagnóstico e ...
Louro Gonzalez, Arturo
core   +1 more source

Mediterranean octocoral populations exposed to marine heatwaves are less resilient to disturbances

Journal of Animal Ecology, Volume 94, Issue 8, Page 1528-1541, August 2025.
We demonstrate that marine heat waves decrease the resilience of Mediterranean octocorals to further disturbances. Abstract The effects of climate change are now more pervasive than ever. Marine ecosystems have been particularly impacted by climate change, with marine heatwaves (MHWs) being a strong driver of mass mortality events.
Pol Capdevila, Yanis Zentner, Graciel·la Rovira, Joaquim Garrabou, Alba Medrano, Cristina Linares   +5 more
wiley   +1 more source

Recomendaciones de diseño para definir la situación de confort térmico en aulas escolares en clima cálido

Area, 2022
El presente trabajo expone una serie de recomendaciones de diseño en cuanto al confort térmico para aulas escolares localizadas en la ciudad de Cali, Colombia, ubicada en el trópico.
Olga Lucía Montoya Florez, Gustavo Alberto San Juan   +1 more
doaj   +4 more sources

When can we expect negative effects of plant diversity on community biomass?

Journal of Ecology, Volume 113, Issue 8, Page 1955-1969, August 2025.
Understanding the functional consequences of biodiversity loss is critical but we need to be clear about what type of biodiversity change we are measuring and to focus on the loss of stably coexisting core species. Abstract Although experiments overwhelmingly show biodiversity increases ecosystem functioning, relationships in natural communities are ...
Eric Allan, Caterina Penone, Bernhard Schmid, Oscar Godoy, Noémie Anna Pichon   +4 more
wiley   +1 more source