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Anais da Academia Brasileira de Ciências
On-line version ISSN 1678-2690


Table of contents
An. Acad. Bras. Ciênc. vol.78 no.1 Rio de Janeiro Mar. 2006

 Mathematical Sciences
 ·  Constant mean curvature surfaces with circular boundary in R3
Hinojosa, Pedro A.

 ·  New examples of surfaces in H3 with conformal normal Gauss map
Shi, Shuguo

 Chemical Sciences
 ·  Pimarane Diterpenes and a Sesquiterpene from Salzmmania nitida
Carvalho, Mário G. de; Alves, Josinete S.; da-Cunha, Emidio V. Leitão; Barbosa-Filho, José M.; Silva, Marcelo S. da

 ·  Exploiting gas diffusion for non-invasive sampling in flow analysis: determination of ethanol in alcoholic beverages
Vicente, Simone; Zagatto, Elias A.G.; Pinto, Paula C.A.G.; Saraiva, Maria Lucia M.E.S.; Lima, José L.F.C.; Borges, Eduardo P.

 ·  Photo-Fries rearrangements of 1-naphthyl (R)-2-phenylpropanoate in poly(vinyl acetate) and ethyl acetate: influence of medium polarity and polymer relaxation on motions of singlet radical pairs
Xu, Jinqi; George, Mathew; Weiss, Richard G.

 Biological Sciences
 ·  Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil
Mendonça, Luciana B.; Anjos, Luiz dos

 ·  Cricket singing means rain: semiotic meaning of insects in the district of Pedra Branca, Bahia State, northeastern Brazil
Costa Neto, Eraldo M.

 ·  Differentially displayed expressed sequence tags in Melipona scutellaris (Hymenoptera, Apidae, Meliponini) development
Santana, Flávia A.; Nunes, Francis M.F.; Vieira, Carlos U.; Machado, Maria Alice M.S.; Kerr, Warwick E.; Silva Jr, Wilson A.; Bonetti, Ana Maria

 ·  Seasonal pelage color change: news based on a South American Rodent
Camargo, Carolina R.; Colares, Elton; Castrucci, Ana Maria L.

 Biomedical and Medical Sciences
 ·  Molecular basis of mammalian cell invasion by Trypanosoma cruzi
Yoshida, Nobuko

 ·  Determinants of HIV-1 mother-to-child transmission in Southern Brazil
Martínez, Ana M.B.; Hora, Vanusa P. da; Santos, Adriana L. dos; Mendoza-Sassi, Raul; Von Groll, Andréa; Soares, Esmeralda A.J.M.; D'Ávila, Nildo; Silveira, Jussara; Leal, Renata G.; Tanuri, Amilcar; Soares, Marcelo A.; HU-FURG. The HIV/AIDS Unit

 ·  Mutations in collagen 18A1 (COL18A1) and their relevance to the human phenotype
Passos-Bueno, Maria Rita; Suzuki, Oscar T.; Armelin-Correa, Lucia M.; Sertié, Andréa L.; Errera, Flavia I.V.; Bagatini, Kelly; Kok, Fernando; Leite, Katia R.M.

 Earth Sciences
 ·  New U-Pb SHRIMP zircon ages for pre-variscan orthogneisses from Portugal and their bearing on the evolution of the Ossa-Morena tectonic zone
Cordani, Umberto G.; Nutman, Allen P.; Andrade, Antonio S.; Santos, José F.; Azevedo, Maria do Rosário; Mendes, Maria Helena; Pinto, Manuel S.

 ·  The Tectonic interaction between the Paramirim Aulacogen and the Araçuaí Belt, São Francisco craton region, Eastern Brazil
Cruz, Simone C.P.; Alkmim, Fernando F.

 ·  Description of a sauropod dinosaur braincase (Titanosauridae) from the Late Cretaceous Rio Colorado Subgroup, Patagonia
Calvo, Jorge O.; Kellner, Alexander W.

 Agrarian Sciences
 ·  Communities of P-solubilizing bacteria, fungi and arbuscular mycorrhizal fungi in grass pasture and secondary forest of Paraty, RJ - Brazil
Souchie, Edson L.; Saggin-Júnior, Orivaldo J.; Silva, Eliane M.R.; Campello, Eduardo F.C.; Azcón, Rosario; Barea, Jose M.