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Intercomprehension causes polemics: alterity and heterogeneity in the discourses of singers Anitta and Pitty regarding female sexual behavior
(Univ Federal Minas Gerais, Fac Letras, 2017-01-01)
This article investigates a polemic issue between the Brazilian singers Anitta and Pitty during a television show. The polemic was about the feminine behavior in relation to sexuality. The specific objectives are: (i) to ...
The α and β diversities in the fish assemblages of the promiss̃ao reservoir (SP-Brazil): Scales, complexities and ecotone heterogeneity
(2001-01-01)
This paper characterizes the fish assemblage and its interaction with different ecotones within the reservoir. The transformation of a river basin into a cascade of reservoirs produces new ecotones which interact differentially ...
Boundary Tension at the Interface of Nanoscopic Helium Films on an Heterogeneous Substrate
(Springer, 2014-07)
This paper reports the first calculation of the two-dimensional interfacial profile and energetics of nanoscopically thin films of helium, on an heterogeneous planar substrate consisting of two adjoining metals. The ...
A kinetic study of the effect of ultrasound power on the sonohydrolysis of tetraethyl orthosilicate
(Elsevier B.V., 2007-09-01)
A kinetic study of the ultrasound-stimulated and acid-catalyzed sonohydrolysis of tetraethyl orthosilicate (TEOS) in solventless TEOS-water heterogeneous mixtures was carried out by means of a calorimetric method as a ...
Heterogeneous catalysis afford biodiesel of babassu, castor oil and blends
(2013-05-06)
This work describes the preparation of babassu, castor oil biodiesel and mixtures in various proportions of these oils, using alkaline compounds of strontium (SrCO3 + SrO + Sr (OH)2) as heterogeneous catalysts. The mixture ...
Convenient synthesis of ketal derivatives from cubebin using amberlite as heterogeneous catalyst
(Springer, 2015-01-01)
Eleven ketal derivatives were prepared from the natural product cubebin using Amberlite IR-120AR as heterogeneous catalyst and ROH as the source of the alkyl group.
Lipase-oxovanadium heterogeneous catalysis system: a robust protocol for the dynamic kinetic resolution of sec-alcohols
(2020-05-20)
Herein, we present a robust and eco-friendly dynamic kinetic resolution (DKR) protocol for secondary alcohols using a combined heterogeneous catalytic CAL−B/VOSO4 system at 50 °C in the relatively green solvent heptane. ...
Agent-based model with heterogeneous fundamental prices
(2005-11-15)
In this paper, we investigate the properties of the return time series generated by a multi-agent-based model for financial markets. Our model is a variant of the grand canonical minority game model where the agents behave ...
Landscape heterogeneity shapes bird phylogenetic responses at forest–matrix interfaces in Atlantic Forest, Brazil
(2021-03-01)
Agricultural intensification is one of the major factors driving biodiversity loss. However, most studies in human-dominated landscapes have used taxonomic diversity in their analysis, ignoring evolutionary relationships. ...
The role of spatial heterogeneity in diversity of squamate reptiles in the atlantic forest highlands of southeastern Brazil
(2021-01-01)
Spatial heterogeneity of vegetation is considered to be one of the most important factors that can influence species richness in a region and, therefore, an important driver for species diversity. Here, we investigate how ...