Results 31 to 40 of about 7,450 (183)

Reduction of Basic Iron Ore Sinter under Blast Furnace Wall and Center‐Simulated Conditions in CO–CO2–H2–H2O–N2 Gas

open access: yessteel research international, Volume 96, Issue 7, July 2025.
This study investigates the reduction of iron ore sinter in hydrogen and water vapor‐containing gas. It reveals differences in reduction behavior between blast furnace center and wall regions. Results highlight the role of temperature, gas composition, and microstructure in reduction efficiency.
Ahmed Abdelrahim   +3 more
wiley   +1 more source

Low‐temperature dissociation of zircon in highly alkaline conditions: A cautionary note for studies on natural glasses of debated origin

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 7, Page 1573-1586, July 2025.
Abstract Dissociated zircon is largely used as a robust indicator of glasses generated by impact cratering and airbursts. The reaction of zircon dissociation, i.e. ‘ZrSiO4 → ZrO2 + SiO2’, requires high temperatures (>1670°C) only reached by extreme geological processes. Using high‐temperature experiments, this study shows that zircon can dissociate and
A. Musolino   +8 more
wiley   +1 more source

One‐Pot Microwave‐Assisted Olefin Hydroaminomethylation Over Bifunctional Heterogeneous Rh Catalysts

open access: yesChemCatChem, Volume 17, Issue 12, June 23, 2025.
Heterogeneous lab‐made Rh/CNFs gave yield >99% in the one‐pot MW‐assisted hydroaminomethylation of olefins to amines, using EtOAc as the solvent, due to the synergy between metal and acid surface sites. Acetic acid addition promoted both conversion and selectivity during the rate‐determining hydroformylation step.
Fabio Bucciol   +7 more
wiley   +1 more source

Rivalry as a Contextual Factor of Gender Inequality in Network Returns

open access: yesJournal of Management Studies, Volume 62, Issue 4, Page 1599-1643, June 2025.
Abstract Linking research on networks, rivalry, and gender, we develop a contextual approach to gender‐based differences in network returns. Our principal contribution is in articulating the role of rivalry – a personalized and relational form of competition – in influencing the cognitive activation and behavioural mobilization of social networks ...
Shemuel Y. Lampronti   +2 more
wiley   +1 more source

Grape Stalks Valorization towards Circular Economy: A Cascade Biorefinery Strategy

open access: yesChemSusChem, Volume 18, Issue 10, May 19, 2025.
A cascade protocol for grape stalks valorization has been proposed, characterized by a multidisciplinary strategy using unconventional techniques and subcritical water as a green solvent, where physical/chemical treatments synergistically interact with biological treatments to obtain added value products from all the biomass components.
Carlotta Valle   +11 more
wiley   +1 more source

Synthesis of a National Soil Dataset Across Productive Land in Mexico: The Importance of Making Existing Data Accessible

open access: yesEuropean Journal of Soil Science, Volume 76, Issue 3, May–June 2025.
ABSTRACT The lack of soil data is a complication that most soil scientists will encounter throughout their career; this critical aspect is exacerbated due to the excessive cost of soil surveying. Consequently, it is essential to develop strategies that guarantee the permanent accessibility of past soil sampling efforts.
Carlos E. Arroyo‐Cruz   +5 more
wiley   +1 more source

Partial renal deletion of Klotho is not sufficient to impact renal electrolyte handling in distal convoluted tubule specific knock‐out mice

open access: yesPhysiological Reports, Volume 13, Issue 7, April 2025.
Abstract Klotho controls renal electrolyte handling by modulating tubular reabsorption of calcium and phosphate through the epithelial calcium channel TRPV5 and sodium phosphate co‐transporter NPT2A. The Ksp‐KL−/− mice have a targeted deletion of Klotho in the distal part of the nephron.
Teodora V. Grigore   +5 more
wiley   +1 more source

MODELO PARA SIMULAR LA HOMEÓSTASIS NEURONAL DURANTE UN INFLUJO INCREMENTADO DEL CALCIO A TRAVÉS DEL CANAL ASOCIADO AL RECEPTOR IONOTRÓPICO DE GLUTAMATO ACTIVADO POR N-METIL-D-ASPARTATO

open access: yesUniversitas Scientiarum, 2005
Dada la importancia del receptor ionotrópico de glutamato activado por N-Metil-D-Aspartato en los procesos de aprendizaje y la formación de la memoria mediados por el transporte de calcio a través del canal asociado a dicho receptor resulta importante ...
L. Lareo, S. Albarracín
doaj  

Assessing the regional impacts of a multi‐hosting mega sport event: The case of EURO 2020 in Rome

open access: yesMetroeconomica, Volume 75, Issue 4, Page 609-640, November 2024.
Abstract UEFA EURO 2020 is the first multi‐hosting mega‐event developed on the entire continent. Often, mega‐events concentrated in one place have turned out to have a modest, or adverse, economic impact due to high costs. Therefore, the ex‐post assessment of the local impact of the four matches played in Rome as a mega‐event is an interesting case ...
Stefano Deriu   +4 more
wiley   +1 more source

Concentraciones sanguíneas de calcio, fósforo y magnesio en mautas mestizas (taurus-indicus) suplementadas estratégicamente durante el periodo peripuberal

open access: yesRevista Científica, 2010
Con el objetivo de examinar las concentraciones sanguíneas de calcio, fósforo y magnesio durante el período peripuberal en mautas bajo pastoreo y suplemententadas con dos estrategias alimenticias (Alimento balanceado comercial y un suplemento con ...
Silvio Miranda López   +3 more
doaj  

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