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Fe/MgO formulations for the catalytic combustion of methane
(Elsevier, 2000-09)
Fe/MgO catalysts containing between 1.5 and 9 wt% iron were prepared by impregnation and calcined at 1073 K for 10 h. The solids were characterized by XRD and Raman and Mössbauer spectroscopies. They all showed that the ...
Model polydimethylsiloxanes subjected to thermal weathering: Effect on molecular weight distributions
(Elsevier, 2000-01)
We have subjected samples of model polydimethylsiloxanes of narrow molecular weight distribution to thermo-oxidation in an air circulating oven. Samples remained for up to 1760 h at 200 °C under a standard atmosphere. Loss ...
Enunciar/interpelar desde el margen (las metáforas de la intemperie)
(University of Michigan, 2000-12)
Pretendo esbozar aquí algunas reflexiones en torno a problemas que se han convertido en centrales para nuestra tarea de críticos culturales y, más aún, para nuestro posicionamiento como sujetos dentro de un campo intelectual ...
Isothermal microcalorimetry allows detection of "aquaporines" in quinoa seeds
(Elsevier Science, 2000-04)
Aquaporines are channels specifically involved in the overall transport of water through plasma membrane and tonoplast cells. In order to test their presence in quinoa (Chenopodium quinoa Willd.) seeds, we used isothermal ...
Changes in excited-state character of M(L1)(L2)(CO)2(α-diimine) (M=Ru, Os) induced by variation of L1 and L2
(Elsevier Science Sa, 2000-12)
The character of the lowest excited state of the d6-complexes [M(L1)(L2)(CO)2(α-diimine] (M=Ru, Os) varies with L1 and L2. In the case of [Ru(Cl)(Me)(CO)2(α-diimine)] it has predominant metal-to-ligand charge transfer ...
Water-hexane sorption in sunflower meals
(Springer, 2000-06)
Sorption equilibria of water and hexane in sunflower meals were determined at atmospheric pressure and temperatures from 50 to 95 °C. Adsorption-desorption experiments, for both individual vapors and water-hexane mixtures, ...
The larva and pupa of Culicoides bambusicola Lutz observed with SEM, and additional notes on the adult (Diptera Ceratopogonidae)
(American Entomological Society, 2000-12)
The larva and pupa of Culicoides bambusicola are redescribed and illustrated, including photomicrographies, based on the examination with both Scanning Electron Microscopy (SEM) and phase-contrast stereoscope. The larva ...
Variabilidad poblacional de Lotus glaber en relación con la absorción de fósforo del suelo
(Asociación Argentina de Ecología, 2000-12)
Se estudió la variabilidad poblacional de L. glaber en suelos de la Depresión del Salado (Pcia de BsAs) a través de caracteres morfofisiológicos relacionados con la absorción de P. Se compararon dos poblaciones de Lotus ...
Bleeding risk factors in chronic oral anticoagulation with acenocoumarol
(Wiley-liss, Div John Wiley & Sons Inc, 2000-04)
.We studied major bleeding complications, death related to hemorrhage, and tried to identify predisposing factors for bleeding in outpatients treated with acenocoumarol. We evaluated 811 outpatients attending a specialized ...
Interaction Between Hydrodynamics and Chemical Reaction Rate in a Vertical Gas-Slurry Cocurrent Turbulent Tube Reactor. II. Applications
(Soc Chemical Eng Japan, 2000-05)
The behavior of an isothermal, vertical tube reactor in a dispersed bubble flow environment in either upflow, downflow or upflow-downflow configurations is examined, using the performance indicators defined in Part I. The ...