Results 31 to 40 of about 28,818 (183)

The Chanka: Archaeological Research in Andahuaylas (Apurimac), Peru [PDF]

, 2010
In AD 1438 a battle took place outside the city of Cuzco that changed the course of South American history. The Chanka, a powerful ethnic group from the Andahuaylas region, had begun an aggressive program of expansion.
Aráoz Silva, Miriam, Bauer, Brian S., Kellett, Lucas C.   +2 more
core  

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

ChemFoodChem, 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, Ana Rita Pereira, Hiléia K. S. Souza, Nuno Mateus, Victor de Freitas, Ana Fernandes   +5 more
wiley   +1 more source

Selective Solar CO2 Conversion into Ethanol Using Atomic‐Scale Copper Clusters Anchored π‐extended Poly(heptazine imide)

Small, EarlyView.
Atomic‐scale copper clusters anchored on π‐extended poly(heptazine imide) enable selective, sacrificial‐agent‐free solar conversion of carbon dioxide (CO2) to ethanol. The catalyst promotes interfacial charge separation and stabilizes key carbon‐carbon coupling intermediates, providing a molecularly defined platform for direct C2 fuel synthesis under ...
Muhammad Zaeem Azam Khan, Shanmugasundaram Kamalakannan, Ramesh Poonchi Sivasankaran, Amol Uttam Pawar, Sanjeev Gupta, Sung‐hoon Oh, Young Seok Son, Minseong Kim, Sachin G. Ghugal, Kyoung Mo Park, Hongxian Han, Majdi Hochlaf, Young Soo Kang   +12 more
wiley   +1 more source

Documenting the History of Inca Precious Metal Production using Geochemical Techniques from Lake Sediments in the Andahuaylas Region of Peru [PDF]

, 2011
The process of studying heavy metal concentrations in lake sediments in order to reconstruct pollution history has been used in a variety of environments and locations.
Kane, Molly Mae
core   +1 more source

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

New discoveries on astronomical orientation of Inca site in Ollantaytambo, Peru

Geoinformatics FCE CTU, 2015
This paper deals with astronomical orientation of Incas objects in Ollantaytambo, which is located about 35 km southeast from Machu Picchu, about 40 km northwest from Cusco, and lies in the Urubamba valley.
Karolína Hanzalová, Jaroslav Klokočník, Jan Kostelecký   +2 more
doaj   +1 more source

Oral Tradition Of Senior Adults On The Road Of The Inca- Qhapacanñan: a contribution to the sustainable tourism of the Carchi-Ecuador

International Journal of Professional Business Review, 2019
The present research is a contribution to the quality of life of the communities of the province of Carchi-Ecuador, immersed in the Qhapaq Ñan, or Camino del Inka. This historical route is a national priority for tourist-cultural and scientific development, being declared a World Heritage Site by UNESCO. The objectives that guided the research were: (a)
Lomas Tapia, Kennedy Rolando, Trujillo, Carmen Amelia, Naranjo Toro, Miguel Edmundo   +2 more
openaire   +2 more sources

Enhancing antitumour response to proteasome inhibitors with inhibitors of insulin‐degrading enzyme, a new molecular vulnerability in multiple myeloma

British Journal of Pharmacology, EarlyView.
Inhibitors of insulin‐degrading enzyme boost PI cytotoxicity through an increased sensitivity of proteasome to PI inhibitors, induction of ISR, DNA damage and Myc down‐regulation. They overcome PI resistance in vitro and induce tumour regression in vivo.
Laetitia Lesire, Rebecca Deprez‐Poulain, Damien Bosc, Florence Leroux, Valerie Landry, Sarah Ourabah, Morgane Tardy, Clara Maillard, Ronan Gealageas, Julie Dumont, Adrien Herledan, Sandrine Warenghem, Manon Cruette, Celine Lenglart, Alexandre Biela, Catherine Piveteau, Eva De Smedt, Catharina Muylaert, Wenguang Liang, Elvira Garcia De Paco, Elina Alaterre, Sara Ovejero, Nicolas Robert, Fabien Delahaye, Wei‐Jen Tang, Peter van Endert, Elke De Bruyne, Jérôme Moreaux, Benoit Deprez   +28 more
wiley   +1 more source

Reducing stranded assets through early action in the Indian power sector

Environmental Research Letters, 2020
Cost-effective achievement of the Paris Agreement’s long-term goals requires the unanimous phase-out of coal power generation by mid-century. However, continued investments in coal power plants will make this transition difficult.
Aman Malik, Christoph Bertram, Jacques Despres, Johannes Emmerling, Shinichiro Fujimori, Amit Garg, Elmar Kriegler, Gunnar Luderer, Ritu Mathur, Mark Roelfsema, Swapnil Shekhar, Saritha Vishwanathan, Zoi Vrontisi   +12 more
doaj   +1 more source

Golden weapons and golden fetters: From the gold standard to the new geopolitics

The Economic History Review, EarlyView.
Abstract This paper explores the historical relationship between monetary regimes, security concerns, and geopolitical tensions, particularly focusing on the role of gold. Throughout history, monetary systems have been deeply intertwined with international state systems and security provisions.
Harold James
wiley   +1 more source