Results 21 to 30 of about 25,621 (216)

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

Tailoring K+ Dosage in K+/Zn2+ Mixed Electrolytes via Lattice Expansion Regulation of Zinc Hexacyanoferrate for High‐performance Zinc Ion Batteries

open access: yesAdvanced Science, EarlyView.
The study proposes a fitting curve as a reference to quantify the optimal K+ ratio in K+/Zn2+ mixed electrolyte, thus achieving stable and high‐capacity aqueous zinc ion batteries at each current density. ABSTRACT Incorporating K+ into Zn‐based electrolytes can enhance the performance of aqueous zinc ion batteries, while the lack of a clear rule for ...
Yewei Li   +7 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

CD177 Deficiency Defines a Stable Subtype of Human Neutrophil Granulocytes with Tumor Promoting Activity

open access: yesAdvanced Science, EarlyView.
Human neutrophils exist as two epigenetically imprinted subtypes defined by stable CD177 expression or absence — a ratio that persists across time, circadian rhythms, and inflammation. CD177− neutrophils display a distinct molecular landscape enriched in arginase 1 and lipid metabolism markers, accumulate in head‐and‐neck tumors, and associate with ...
Marcel Jung   +39 more
wiley   +1 more source

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

Metabolic Flux Analysis Reveals Cell Line‐Specific Rewiring in CHO Cells Following TCA Cycle Intermediate Feeding for Bioprocess pH Control

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Chinese hamster ovary (CHO) cells are the leading host for recombinant therapeutic protein production in the biopharma industry. In this study, we investigated how feeding acidic forms of tricarboxylic acid (TCA) cycle intermediates—malic acid, succinic acid, and α‐ketoglutaric acid—affects cell culture performance and metabolism in two ...
Sarah A. Sacco   +8 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

Instalação, manutenção e manuseio de cateteres venosos centrais de inserção periférica em pacientes submetidos a tratamento quimioterápico

open access: yesRevista Brasileira de Cancerologia, 2022
Considerando que os cateteres venosos centrais de inserção periférica representam hoje uma nova opção para acesso venoso central utilizada por enfermeiros capacitados, este estudo teve como objetivo avaliar os cateteres instalados quanto ao seu tempo de
Luiz Célio Martins Freitas   +2 more
doaj   +1 more source

Light‐Induced Structural Reorganization of Fe Centers Unlocks High Efficiency of Visible‐Light Photo‐Fenton Water Cleaning Catalyst

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Bimetallic Cu and Fe oxide species supported on porous silica with interparticle mesoporosity act as efficient photo‐Fenton‐like catalysts under visible light. Photogenerated electrons drive the Cu2+/Cu1+ redox cycle. Part of Cu1+ is responsible for the regeneration of the Fe3+/Fe2+ cycle at neutral pH. Light irradiation additionally induces structural
Andraž Šuligoj   +6 more
wiley   +1 more source

Carcinoma diferenciado da tireóide na infância

open access: yesRevista do Colégio Brasileiro de Cirurgiões
Os autores apresentam uma revisão de 12 casos de carcinoma da glândula tireóide em crianças, tratados na Seção de Cirurgia de Cabeça e Pescoço do Hospital do Câncer (INCa), no período entre 1986 e 1994.
Geraldo Matos de Sá   +5 more
doaj   +1 more source

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