Results 141 to 150 of about 1,074,136 (335)

Zooarchaeology of the Pre-Bell Beaker Chalcolithic Period of Barrio del Castillo (Torrejón de Ardoz, Madrid, Spain)

open access: yesHeritage
This article presents the first results of the zooarchaeological analysis of Chalcolithic levels of the Barrio del Castillo site (Torrejón de Ardoz), located within the Aldovea complex, which also contains evidence from other prehistoric periods.
Verónica Estaca-Gómez   +3 more
doaj   +1 more source

Acid/Base‐Responsive Circularly Polarized Luminescence Emitters with Configurationally Stable Nitrogen Stereogenic Centers

open access: yesAdvanced Materials, EarlyView.
Circularly Polarized Luminescence (CPL) emitters based on Tröger's base analogues bearing two peripheral fluorophores (anthracene, pyrene or 9,9‐dimethylfluorene) are prepared following a straightforward and versatile synthetic approach from common precursors.
Pablo García‐Cerezo   +11 more
wiley   +1 more source

Financial Crises In Spain: Lessons From The Last 150 Years [PDF]

open access: yes
The financial disturbances that originated in the US in the second half of 2007 are the latest in a series of episodes in various regions of the world in recent years.
Concha Betrán   +2 more
core  

Superior Adhesion of Monolayer Amorphous Carbon to Copper

open access: yesAdvanced Materials, EarlyView.
The adhesion energy of monolayer amorphous carbon on copper substrate is 85 J m−2, 13 times higher than that of graphene due to covalent‐like bonding between the sp2 carbon structure to copper. X‐ray photoelectron spectroscopy (XPS), near‐edge X‐ray absorption (NEXAFS), and (density functional theory) DFT calculations are used to elucidate the ...
Hongji Zhang   +27 more
wiley   +1 more source

Ligand Field‐Induced Dual Active Sites Enhance Redox Potential of Nickel Hexacyanoferrate for Ammonium Ion Storage

open access: yesAdvanced Materials, EarlyView.
The work aims to explore the electrochemical performance and energy storage mechanism of nickel hexacyanoferrate (NiHCF) in ammonium ion batteries (AIBs). The effect of ligand field‐induced dual active sites has been revealed for the first time. Ni atoms of NiHCF display electrochemical activity in AIBs.
Mengmeng Zhou   +8 more
wiley   +1 more source

Notas para la historia financiera y empresarial de Andalucía: Recursos y Problemas para un Censo Fiscal de Las Sociedades Andaluzas a principios del siglo XX. [PDF]

open access: yes
The systematic study of the statistics concerning the Corporations Profit Tax from the first decades of the 20th century allows the analysis of complex questions about Andalusian and Spanish business history in the critical stage of the emergence of the ...
Gregorio Núñez, Luís González Ruiz
core  

Heritage and Myths: The «Kingdoms of Faith» of Medieval Spain Through the Prism of Contemporary Debates on Interreligious Dialogue

open access: yesИбероамериканские тетради
Book review: Catlos B.А. Kingdoms of Faith: A New History of Muslim Spain. – Moscow: Medina ID, 2024. – 608 p.The Muslim period in the history of Spain is mostly associated with Moorish art and the brutal but just Reconquista that culminated with the ...
M. V. Silantieva, D. S. Gorshenyov
doaj   +1 more source

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