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Patrones distintivos de deposición de calosa proveen evidencia temprana de aborto de óvulos en el arbusto andromonoico Caesalpinia gilliesiiDistinctive patterns of callose deposition provide an early sign of ovule abortion in the andromonoecious shrub Caesalpinia gilliesii
(Sociedad Argentina de Botánica, 2009-07)
Ovule abortion may lead to the partial or complete reduction of the number of functional ovules in the ovary and then is the primary factor that determines the sexual expression of the plant. In different species, ovule ...
Drought and frost resistance vary between evergreen and deciduous Atlantic Forest canopy trees
(Csiro Publishing, 2020-03)
Frost and drought are key stress factors limiting the growth and distribution of tree species. Resistance to stress involves energy costs that may result in trade-offs between different functional traits. Structures or ...
Kinetic study of the dissolution of metakaolin with hydrofluoric acid
(National Institute of Science Communication, 2018-05)
The kinetics mechanism on the dissolution of metakaolin by hydrofluoric acid has been studied. The effects of temperature, reaction time, and stirring speed have been examined. Experimental results show that reaction rate ...
Effect of montmorillonite on the crystallization and thermal degradation of poly(propylene-coethylene- co-1-butene) nanocomposites
(Sage Publications, 2016-07)
Polymeric nanocomposites based on poly(propylene-co-ethylene-co-1-butene) (PEBC) were elaborated by melt mixing using an organophilic montmorillonite (o-MMT) and maleated PEBC (PEBCg) as compatibilizer. The effect of clay ...
Diminished Fluid Transport through Carbon Nanochannels Induced by COOH Functionalization: Implications for Nanofiltration and Oil Recovery
(American Chemical Society, 2021-11)
Fluid transport on confined systems is a subject of theoretical and technological interest. For instance, remarkable high flow rates have been obtained in carbon nanochannels (CNs) which cannot be predicted by standard ...
Mechanical properties of Au foams under nanoindentation
(Elsevier, 2018-05)
Nanoscale metallic foams display mechanical properties which make them attractive for a variety of technological applications. We report simulated nanoindentation tests for a model polycrystalline nanoporous gold structure ...
On the formation of pure and Pt-doped iron silicides using ball milling
(IOP Publishing, 2001-01)
The sequence of phase formations for elemental powders of stoichiometric FeSi2 and Fe1-xPtxSi2 (0.03 ≤ x ≤ 0.50) mixtures prepared by mechanical alloying at room temperature in an Ar atmosphere in a horizontal mill is ...
Stress Analysis on Single-Crystal Diamonds by Raman Spectroscopy 3D Mapping
(Scientific Research, 2013-03)
Results on stress analysis for single-crystal diamonds are presented. Isolated crystals were studied by Raman mapping and depth profiling techniques, using confocal microscopy. Diamonds were deposited on molybdenum and ...