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Analysis of catalytic potential of a new heterogeneous catalyst in the preparation of biodiesel
(2018-01-01)
In this work was investigated the catalytic potential of a new heterogeneous catalyst of stoichiometry Ca0.5K0.5TiCu0.25O3, with double perovskite structure, in the preparation of biodiesel via ethylic route. The catalyst ...
Amorphous silicates containing cerium: selective catalysts for the oxidation of cyclohexane
(Elsevier Science BvAmsterdamHolanda, 2001)
Equal channel angular sheet extrusion (ECASE) produces twinning heterogeneity in commercially pure titanium
(Elsevier, 2021-11)
Commercially pure grade 2 titanium in sheet form was processed by equal channel angular sheet extrusion (ECASE) up to two passes at room temperature. The ECASE process generated a heterogeneous state of deformation, mainly ...
Heterogeneous genetic structure in a natural population of Raulí (Nothofagus nervosa)
(Pontificia Universidad Catolica de Chile, Facultad de Agronomia e Ingenieria Forestal, 2011)
Heterozygote deficiencies in natural populations of outbreeding tree species are common and thought to be due mainly to biparental inbreeding. Inbreeding is believed to be caused by family structure within populations, a ...
Population genetics of Collisella subrugosa (Patellogastropoda : Acmaeidae): evidence of two scales of population structure
(SpringerDordrechtHolanda, 2007)
Factors affecting woody plant species diversity of fragmented seasonally dry oak forest in the Mixteca Alta, Oaxaca, Mexico
(Revista Mexicana de Biodiversidad, 2013-06)
Abstract. We explored the relationship between fragment area, topographic heterogeneity, and disturbance intensity
with tree and shrub species diversity in seasonally dry oak forest remnants in the Mixteca Alta, Oaxaca, ...
Structural heterogeneity and poor microenterprises in ArgentinaHeterogeneidad estructural y microemprendimientos pobres en la Argentina
(Instituto de Investigaciones Económicas, 2012)
Institutional Expansion and Scientific Development in the Periphery: The Structural Heterogeneity of Argentina’s Academic Field
(Springer, 2018-09)
The relationship between “marginal” and “mainstream” science has, in recent decades, become a matter of discussion. Traditional perspectives must be reexamined in the wake of transformations in the international circulation ...
Habitat amount, habitat heterogeneity, and their effects on arthropod species diversity
(Brasil, 2013)
Not all studies have empirically supported the model that predicts a positive relationship between habitat heterogeneity and biodiversity. We hypothesized that these different results stem from the methods used to assess ...
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 ...