Alexandre Maia

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Perkinsus atlanticus is a pathogenic protist that infects the clam Ruditapes decussatus. The recent proposal for the inclusion of the genus Perkinsus in a new phylum, Perkinsozoa, in the infra-kingdom Alveolata, gave rise to controversies whether this genus should form a phylum on its own. Molecular analysis of some conserved nuclear genes shows a closer(More)
This paper investigates the role of occupational structure in socioeconomic inequality, making a comparison between Brazil and the Unites States (US). Changes in the Brazilian and American occupational structures between 1983 and 2009 are studied in order to examine if the huge structural changes witnessed in this period led to a convergence between these(More)
According to the Resource-Based View, the nature of the resources, competences and knowledge accumulated by firms are the major causes of variation in business performance. In view of the importance attributed to intangible assets, the purpose of the present study was to investigate whether innovative firms with superior and sustained performance and firms(More)
We present R-band CCD photometry for 1332 early-type galaxies, observed as part of the ENEAR survey of peculiar motions using early-type galaxies in the nearby Universe. Circular apertures are used to trace the surface brightness profiles, which are then fit by a two-component bulge-disk model. From the fits we obtain the structural parameters required to(More)
This paper analyzes the view of stakeholders on genetically modified organisms (GMOs) and the implications of these views on communication strategies for agricultural biotechnology in Brazil. It identifies and describes common groups of attitudes toward GMOs using multivariate statistical analyses. The study then looks for patterns of association between(More)
This study analysed the impact of changing family structure on income distribution. Specifically, it analysed how changes in the proportions of different categories of family in the population contributed to increases in the income of the richest and poorest social strata in Brazil, and the consequent impacts on income inequality. Rural and urban families(More)
The aim of this paper is to analyze how the social position of families affects self-reported health status, based on data from the 1998 and 2003 National Sample Household Survey of the Brazilian Institute of Geography and Statistics (PNAD-IBGE). The method was based on descriptive statistics and logistic regression to capture the conditional relationship(More)
We present an analysis of the ENEAR sample of peculiar velocities of field and cluster elliptical galaxies, obtained with Dn–σ distances. We use the velocity correlation function, ψ1(r), to analyze the statistics of the field–object’s velocities, while the analysis of the cluster data is based on the estimate of their r.m.s. peculiar velocity, Vrms. The(More)
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