Anais da Academia Brasileira de Ciencias

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Rhizophores in Rhizophora mangle L: an alternative interpretation of so-called ''aerial roots''
Anais da Academia Brasileira de Ciencias - Tập 78 Số 2 - Trang 213-226 - 2006
Nanuza Luíza de Menezes
Rhizophora mangle L., one of the most common mangrove species, has an aerial structure system that gives it stability in permanently swampy soils. In fact, these structures, known as "aerial roots" or "stilt roots", have proven to be peculiar branches with positive geotropism, which form a large number of roots when in contact with swampy soils. These organs have a sympodial branching syst...... hiện toàn bộ
Orange and Passion Fruit Wastes Characterization, Substrate Hydrolysis and Cell Growth of Cupriavidus necator, as Proposal to Converting of Residues in High Value Added Product
Anais da Academia Brasileira de Ciencias - Tập 91 Số 1
Gabriel Olivo Locatelli, Leandro Finkler, Christine Lamenha Luna Finkler
Dynamic Analysis of the Temperature and the Concentration Profiles of an Industrial Rotary Kiln Used in Clinker Production
Anais da Academia Brasileira de Ciencias - Tập 89 Số 4 - Trang 3123-3136 - 2017
D. C. Q. Rodrigues, Atílio Peixoto Soares Júnior, Esly Ferreira da Costa, Andréa Oliveira Souza da Costa
Watery and dark axons in Wallerian degeneration of the opossum's optic nerve: different patterns of cytoskeletal breakdown?
Anais da Academia Brasileira de Ciencias - Tập 73 Số 2 - Trang 231-243 - 2001
Marcelo Sampaio Narciso, Jan Nora Hokoç, Ana Maria Blanco Martinez
In this paper we report a qualitative morphological analysis of Wallerian degeneration in a marsupial. Right optic nerves of opossums Didelphis marsupialis were crushed with a fine forceps and after 24, 48, 72, 96 and 168 hours the animals were anaesthetized and perfused with fixative. The optic nerves were immersed in fixative and processed for routine transmission electron microscopy. Am...... hiện toàn bộ
Response of the brain to enrichment
Anais da Academia Brasileira de Ciencias - Tập 73 Số 2 - Trang 211-220 - 2001
Marian C. Diamond
Before 1960, the brain was considered by scientists to be immutable, subject only to genetic control. In the early sixties, however, investigators were seriously speculating that environmental influences might be capable of altering brain structure. By 1964, two research laboratories proved that the morphology and chemistry or physiology of the brain could be experientially altered (Bennet...... hiện toàn bộ
New evidence of feathers in the Crato Formation supporting a reappraisal on the presence of Aves
Anais da Academia Brasileira de Ciencias - Tập 83 Số 1 - Trang 197-210 - 2011
Juliana Manso Sayão, Antônio Álamo Feitosa Saraiva, Angélica M. K. Uejima
The preservation of delicate structures such as feathers is very rare in the paleontological record, due to the fragility of their components. Fossil feathers have been reported from approximately 50 deposits around the world, from the Late Jurassic to the Pleistocene. In Brazil initial findings consisted of a primary feather of a large bird found in the Tremembé Formation. Other occurrenc...... hiện toàn bộ
Novelties in secretory structures and anatomy of Rhynchosia(Fabaceae)
Anais da Academia Brasileira de Ciencias - Tập 87 Số 1 - Trang 83-87
Wanderleia de Vargas, Ângela Lúcia Bagnatori Sartori, Edna Dias Canedo
A comparative anatomical study was carried out on the secretory structures of leaflets from taxa belonging to the genus Rhynchosia - taxa difficult to delimit because of uncertain interspecific relations - in order to evaluate the potential diagnostic value of these anatomical traits for taxonomic assignment. A further objective was to establish consensual denomination for these secretory ...... hiện toàn bộ
Population Structure of Lutjanus purpureus (Lutjanidae - Perciformes) on the Brazilian coast: further existence evidence of a single species of red snapper in the western Atlantic
Anais da Academia Brasileira de Ciencias - Tập 84 Số 4 - Trang 979-999 - 2012
Grazielle Gomes, Iracilda Sampaio, Horácio Schneider
The present study focus on the mitochondrial control region to investigate phylogeographic patterns and population structure in Lutjanus purpureus, and to evaluate the genetic similarity between L. purpureus and L. campechanus. For the initial analysis, 810 base pairs sequence from control region were obtained from 239 specimens of L. purpureus collected from four localities off the Brazil...... hiện toàn bộ
Protease from Mucor subtilissimus UCP 1262: Evaluation of several specific protease activities and purification of a fibrinolytic enzyme
Anais da Academia Brasileira de Ciencias - Tập 92 Số 4
Thiago Pajeú Nascimento, Amanda Emmanuelle Sales, José Arion da Silva Moura, Juanize Matias da Silva Batista, Romero Marcos Pedrosa Brandão Costa, Camila Souza Porto, Galba Maria de Campos‐Takaki, Tatiana Souza Porto, Ana Lúcia Figueiredo Porto
Study of wet precipitation and its chemical composition in South of Brazil
Anais da Academia Brasileira de Ciencias - Tập 80 Số 2 - Trang 381-395 - 2008
Elba Calesso Teixeira, Daniela Montanari Migliavacca Osório, Sadi Pereira Filho, Andréa C.M. Machado, Juliana Braga Dallarosa
The purpose of this study is to analyze the chemical composition of wet precipitation in samples collected at three stations in the Candiota region in the Brazilian state of Rio Grande do Sul (RS). Samples were collected in 2004. Variables analyzed in wet precipitation were pH, conductivity, and concentration of Cl-, NO3-, SO4(2-) F-, Na+, Ca2+, Mg2+, K+, NH4+, Cu, Zn, Fe, Mn, Pb, Ni, Cd, ...... hiện toàn bộ
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