Results 21 to 30 of about 829 (166)

A Long-Term Ecological Research Data Set From the Marine Genetic Monitoring Program ARMS-MBON 2018-2020. [PDF]

open access: yesMol Ecol Resour
ABSTRACT Molecular methods such as DNA/eDNA metabarcoding have emerged as useful tools to document the biodiversity of complex communities over large spatio‐temporal scales. We established an international Marine Biodiversity Observation Network (ARMS‐MBON) combining standardised sampling using autonomous reef monitoring structures (ARMS) with ...
Daraghmeh N   +40 more
europepmc   +2 more sources

Mecanismos de corrosión e inhibición electroquímica del acero galvanorrecocido

open access: yesRevista de Metalurgia, 2006
Se ha estudiado el mecanismo de corrosión de un acero galvanorrecocido, en 0,6 M de cloruro sódico, mediante espectroscopia de impedancia electroquímica.
M. A. Arenas, J. J. de Damborenea
doaj   +1 more source

Influencia del Ce en la hidrodesulfuración de tiofeno utilizando precursores catalíticos de heteropolioxomolibdatos de níquel tipo Anderson soportados sobre alúmina/Influence of Ce in the thiophene hydrodesulfurization using catalytic precursor of alumina

open access: yesProspectiva, 2017
El efecto del soporte modificado con cerio en precursores catalíticos de NiMo tipo Anderson sobre la hidrodesulfuración de tiofeno fue investigada. Los sólidos fueron caracterizados por área específica (SBET), difracción de rayos X (DRX) y espectroscopía
Andrés Polo Hernández   +2 more
doaj   +1 more source

Estudo do crescimento de nanofitas de céria dopada com gadolínio por sistema de aquecimento por micro-ondas

open access: yesCerâmica, 2013
O óxido de cério (céria) tem atraído atenção devido às suas importantes aplicações, como em células a combustível de óxido sólido, catalisadores de gases de exaustão de automóveis, catalisadores para a obtenção de hidrogênio, bloqueadores de raios ...
R. F. Gonçalves   +6 more
doaj   +1 more source

Trampas para retención de óxido de azufre

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2001
Se estudió el comportamiento de varias trampas de azufre, constituidas por los óxidos de cerio, estroncio, bario, cobalto y manganeso, como materiales adsorbentes de dióxido de azufre (SO2). Se observó que el óxido de cerio pre­senta la mayor capacidad
Mauricio Sánchez   +4 more
doaj   +1 more source

Consistent Choice of Prey Source Habitat Across Diverse Landscapes by a Selective Insectivorous Bat

open access: yesIntegrative Zoology, EarlyView.
After analyzing the diet of the greater horseshoe bats in three distinct colonies, we identified significant spatial and temporal differences, particularly noting a stronger reliance on riparian habitats in Mediterranean areas. The species exhibits great ecological adaptability with strong plasticity in prey source habitats, shifting preferences among ...
Miren Aldasoro   +7 more
wiley   +1 more source

Multiple‐TE Based Blood–Brain‐Barrier Water Exchange Time Measurement Using a TE‐Resolved 3D TSE Stack‐Of‐Spirals Readout

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 4, Page 1629-1644, October 2026.
ABSTRACT Purpose To develop a slice‐wise blurring‐free and densely sampled TE‐resolved multiple‐TE (mTE) ASL sequence (TASL) for measuring blood–brain barrier (BBB) water exchange time. Methods A 3D TSE spiral‐readout pCASL sequence was modified to enable TE‐resolved acquisition.
Bo Li   +11 more
wiley   +1 more source

Caracterización mecánica y microestructural de aceros de baja activación candidatos como primera pared en los reactores de fusión por confinamiento magnético

open access: yesRevista de Metalurgia, 1996
Actualmente, se está estudiando de forma paralela al desarrollo del diseño de los reactores de fusión los posibles materiales a emplear en estos. Una de las cuestiones más críticas en esta investigación es la selección del material estructural a emplear ...
M. T. Hernández   +3 more
doaj   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, Volume 309, Issue 8, Page 1995-2048, August 2026.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

Recent Perspectives on Phytochemical Profile, Pharmacological Activities, and Industrial Applications of Guava (Psidium guajava)

open access: yesFood Safety and Health, Volume 4, Issue 3, Page 542-560, July 2026.
Psidium guajava leaves contain potent bioactive compounds like quercetin, myricetin, and triterpenoids that show antioxidant, antidiabetic, anti‐inflammatory, and anticancer effects. They act by modulating NF‐κB, PPARγ, and α‐glucosidase and by inducing apoptosis and cell cycle arrest.
Muhammad Waqar   +10 more
wiley   +1 more source

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