SciELO - Scientific Electronic Library Online
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SciELO (Scientific Electronic Library Online) is an electronic library covering a selected collection of Brazilian scientific journals. The objective of the site is to implement an electronic virtual library, providing full access to a collection of serial titles, a collection of issues from individual serial titles, as well as to the full text of articles. The project envisages the development of a common methodology for the preparation, storage, dissemination and evaluation of scientific literature in electronic format.
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Geodesics without conjugate points and curvatures at infinity - MENDONÇA,SÉRGIO; ZHOU,DETANG
We study the asymptotic behavior of curvature and prove that the integral of curvature along a geodesic without conjugate points is nonpositive and some generalizations of Myers theorem and Cohn-Vossen's theorem.
25.
Dirac's æther in curved spacetime - OLIVEIRA,ALEXANDRE L.; TEIXEIRA,ANTONIO F. F.
Proca's equations for two types of fields in a Dirac's æther with electric conductivity sigma are solved exactly.
26.
The current status of the New World monkey phylogeny - SCHNEIDER,HORACIO
The total analysis strongly supports the monophyly of the Cebidae family, grouping Aotus, Cebus and Saimiri with the small callitrichines.
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Strategies by which some pathogenic trichomonads integrate diverse signals in the decision-making process - LÓPEZ,LUCIENE BOTTENTUIT; BRAGA,MARIANE BANDEIRA DE MELO; ORTEGA LÓPEZ,JAIME; ARROYO,ROSSANA; SILVA FILHO,FERNANDO COSTA E
Either cytoadhesion or the cytotoxicity exerted by parasites to host cells can be dictated by virulence factors such as adhesins, cysteine proteinases, laminin-binding proteins, integrins, integrin-like molecules, a cell detachment factor, a pore-forming protein, and glycosidases among others.
28.
A possible chelonian egg from the Brazilian late cretaceous - AZEVEDO,SERGIO ALEX; GALLO,VALÉRIA; FERIGOLO,JORGE
Computerized tomography reveals a high density outer region corresponding to the shell component layers, and successive layers with decreasing density towards the nucleus.
29.
Geometry and kinematics of experimental antiformal stacks - GOMES,CAROLINE JANETTE SOUZA; FERREIRA,JULIANO EFIGÊNIO
Sandbox experiments with different boundary conditions demonstrate that antiformal stacks result from a forward-breaking thrust sequence.
32.
The quaternary geological history of the Santa Catarina Southeastern Region (Brazil) - CARUSO JR.,FRANCISCO; SUGUIO,KENITIRO; NAKAMURA,TOSHIO
This paper supply subsidies for Quaternary geological reconstruction of the southeastern State of Santa Catarina coast in Brazil, being based on detailed geological mapping supported by a series of drilling data, which allowed to establish a stratigraphical hierarchy of the sedimentary deposits.
33.
Patterns of sediment dispersion coastwise the State of Bahia - Brazil - BITTENCOURT,ABÍLIO CARLOS DA SILVA PINTO; DOMINGUEZ,JOSÉ MARIA LANDIM; MARTIN,LOUIS; SILVA,IRACEMA REIMÃO
The resulting model of sediment transport was able to reproduce, in a general way, the sediment dispersion patterns furnished by geomorphic indicators of the littoral drift.