Results 31 to 40 of about 233,546 (256)

A Geomorphometric Approach to Estimate the Deterioration of Earthen Archaeological Sites by Rainfall and Diffusion Processes: The Huaca Chornancap (Eighth–14th Century ad), Lambayeque, Peru

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini   +5 more
wiley   +1 more source

Simultaneous Photoactivation of Copper and Ti‐Doped CeO2−x Enables Optimal Acceleration of the RWGS Reaction

open access: yesCarbon Energy, EarlyView.
A combination of visible light and thermal energy accelerates the CO formation rate up to 57 times compared to dark conditions using a 3Cu/CeTiO2−x catalyst. Kinetic analysis, as well as steady state and transient spectroscopy, was applied under photocatalytic conditions to analyze and disentangle the reaction channels under dark and illuminated ...
Miha Okorn   +4 more
wiley   +1 more source

Reflections on the painting of Alejandro Puente, the notion of Pathosformel, and the return to life of mortally wounded civilizations [PDF]

open access: yes, 2009
The Argentine author José Burucúa is a key figure in the introduction and dissemination of Aby Warburg's theories to scholarship in Latin America. In this article he tests Warburg's concept of Pathosformel to discuss the development of visual culture in ...
Burucúa, J.E.   +1 more
core   +1 more source

Formation and Characterization of Insoluble Anthocyanins‐λ‐carrageenan Biopolyelectrolyte Complexes: Structural Morphology, Thermal Stability, and Release Dynamics

open access: yesChemFoodChem, EarlyView.
Insoluble biopolyelectrolyte complexes formed between blackberry anthocyanins and λ‐carrageenan are investigated. Optimal complexation occurs at low carrageenan ratios and acidic pH, producing porous hydrogel‐like structures with enhanced thermal stability.
Tomás Garrido   +5 more
wiley   +1 more source

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+1 more source

Una placa de metal y un tejido de algodón: implicancias en relación a procesos locales, incaicos y coloniales en la llanura de Santiago del Estero (Argentina)

open access: yesEstudios Atacameños, 2019
Este artículo parte del análisis de dos objetos arqueológicos de colección, para abordar cuestionamientos claves en la comprensión de los procesos sociohistóricos de las poblaciones indígenas que habitaron la llanura de Santiago del Estero durante el ...
Constanza Taboada   +2 more
doaj   +2 more sources

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu   +6 more
wiley   +1 more source

Linfoma Não-Hodgkin de Alto Grau - Revisão da Literatura

open access: yesRevista Brasileira de Cancerologia, 2008
Linfomas são transformações neoplásicas de células linfóides normais que residem predominantemente em tecidos linfóides. O linfoma não-Hodgkin (LNH) é a quarta neoplasia mais incidente nos Estados Unidos, excluindo o câncer de pele não-melanoma, e é ...
Luiz Henrique de Lima Araújo   +11 more
doaj   +1 more source

Assessing impacts of alternative agricultural land use scenarios on nitrogen leaching with the INCA-N model [PDF]

open access: yes, 2006
The Integrated Nutrients Model for Catchments - Nitrogen (INCA-N) model was applied in Savijoki, a small (15,4 km2) agricultural catchment, in order to analyse possibilities to achieve the targeted 50 % reduction in agricultural nitrogen loading.
Granlund, K., Puustinen, M.
core  

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