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The initial peopling of Central Western Patagonia (southernmost South America): Late Pleistocene through Holocene site context and archaeological assemblages from Cueva de la Vieja site
(Pergamon-Elsevier Science Ltd, 2018-04)
This article discusses new data on the initial peopling of Central Western Patagonia based on research conducted at the Cueva de la Vieja site (45°16′27″ S; 71°32′24″ W, 718 masl), contextualizing this event it in the ...
New brachyrostran remains (Theropoda, Abelisauridae) from La Invernada fossil site (Bajo de la Carpa Formation, Upper Cretaceous), northern Patagonia, Argentina
(Academic Press Ltd - Elsevier Science Ltd, 2018-03)
Several remains of an abelisaurid theropod including a nearly complete sacral complex articulated with both ilia, the distal boot of the pubes, the furcula, teeth, and fragments of transverse processes of caudal vertebrae ...
Effect of synthesis conditions on the nanopowder properties of Ce 0.9Zr0.1O2
(Pergamon-Elsevier Science Ltd, 2011-06)
In this work, the synthesis of nanocrystalline Ce0.9Zr 0.1O2 powders via the gel-combustion method, using different fuels, and following either stoichiometric or non-stoichiometric pH-controlled routes is investigated. The ...
Microplastics in bivalves, water and sediments from a touristic sandy beach of Argentina
(Pergamon-Elsevier Science Ltd, 2021-12)
This study assesses for the first time the concentrations of microplastics (MPs) in sediments, water and two human-consumed mussels with different ecological traits (Amarilladesma mactroides and Brachidontes rodriguezii) ...
Standardless determination of nanometric thicknesses in stratified samples by electron probe microanalysis
(Pergamon-Elsevier Science Ltd, 2020-09)
A standardless method for the determination of nanometric thicknesses was developed on the basis of the detection of characteristic X rays. The method was developed aiming to the morphological characterization of anodes ...
Micro-Raman spectroscopy and complementary techniques applied for the analysis of rock art paintings at the archaeological locality La Angostura, lower valley of Chubut River (Patagonia, Argentina)
(Springer Science and Business Media Deutschland GmbH, 2021-03-26)
In this paper, we characterized for the first time the painting materials in rock art panels of the Patagonian archaeological locality La Angostura using a methodological approach that combined micro-Raman spectroscopy, ...
Laboratory-scale reproduction of lighting conditions for an outdoor vertical column photobioreactor: Theoretical fundamentals and operation of a programmable LED module
(Elsevier Science, 2021-05)
The development of tools aimed to predict the productivity of photobioreactors (PBRs) implies immense efforts in the Algae Biotechnology field. Mainly, bubble column systems are widely used for microalgae cultivation. Here, ...
Electrochemical comparison of two methods for polythionineelectropolymerization and its relevance as amperometric detector
(Pergamon-Elsevier Science Ltd, 2013-08)
The electrochemical behavior of polythionine on different electrodes has been investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Polymeric films were obtained by two electropolymerization ...
Phenol methylation on acid catalysts: Study of the catalyst deactivation kinetics and mechanism
(Elsevier Science, 2014-01)
The kinetics and mechanism of coke formation and catalyst deactivation during the synthesis of cresols from phenol methylation were investigated on SiO2–Al2O3, tungstophosphoric acid (HPA) supported on silica, and zeolites ...
Magnetic behavior of iron-modified MCM-41 correlated with clustering processes from the wet impregnation method
(Elsevier Science, 2016-03)
Magnetic MCM-41 type mesoporous silica materials were synthetized and modified with different iron loadings by the wet impregnation method. The evolution of iron speciation, depending on the metal loading and associated ...