Tetrapods
Mostrando 1-12 de 46 artigos, teses e dissertações.
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1. DETERMINAÇÃO DE MERCÚRIO EM FÍGADO DE TETRÁPODES MARINHOS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA ACOPLADA A GERAÇÃO DE VAPOR FRIO (CV-AFS) E ESPECTROMETRIA DE MASSA COM FONTE DE PLASMA INDUTIVAMENTE ACOPLADO (ICP-MS): UMA COMPARAÇÃO SISTEMÁTICA ENTRE AS DUAS TÉCNICAS
This study compares the techniques cold vapour atomic fluorescence spectrometry (CV-AFS) and inductively coupled plasma mass spectrometry (ICP-MS) for the determination of Hg in biological samples (hepatic tissue from marine tetrapods). Acid digestions were performed for the samples and aliquots of them were analysed by ICP-MS and CV-AFS. To minimize the Hg
Quím. Nova. Publicado em: 2021-01
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2. The use of pelvic fins for benthic locomotion during foraging behavior in Potamotrygon motoro (Chondrichthyes: Potamotrygonidae)
Synchronized bipedal movements of the pelvic fins provide propulsion (punting) during displacement on the substrate in batoids with benthic locomotion. In skates (Rajidae) this mechanism is mainly generated by the crural cartilages. Although lacking these anatomical structures, some stingray species show modifications of their pelvic fins to aid in benthic l
Zoologia (Curitiba). Publicado em: 2015-06
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3. Predição de tetrápodes ameaçados no cerrado baseada na relação espécies-área / Prediction of threatened tetrapods in the Cerrado based on species-area relationship
A atual taxa de extinções observadas em todo planeta tem sua origem nas altas taxas de perda de habitat em decorrência do aumento populacional humano. A relação espécies-área pode ser útil na predição de ameaças de extinção quando associada a essa perda. Compilamos listas de tetrápodes do Cerrado e usando a relação espécie-área, foram predi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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4. Predição de tetrápodes ameaçados no cerrado baseada na relação espécies-área / Prediction of threatened tetrapods in the Cerrado based on species-area relationship
A atual taxa de extinções observadas em todo planeta tem sua origem nas altas taxas de perda de habitat em decorrência do aumento populacional humano. A relação espécies-área pode ser útil na predição de ameaças de extinção quando associada a essa perda. Compilamos listas de tetrápodes do Cerrado e usando a relação espécie-área, foram predi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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5. Non-volant tetrapods from Reserva Biológica de Duas Bocas, State of Espírito Santo, Southeastern Brazil
A Reserva Biológica de Duas Bocas (2.190 ha) é um dos maiores remanescentes de Mata Atlântica do Estado do Espírito Santo, Sudeste do Brasil. Nós amostramos tetrápodes não voadores nessa área entre maio de 2007 e abril de 2008, utilizando armadilhas de queda, armadilhas de isca, armadilhas fotográficas e buscas oportunísticas diurnas e noturnas. Al
Biota Neotropica. Publicado em: 2010-09
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6. Autonomic control of cardiorespiratory interactions in fish, amphibians and reptiles
Control of the heart rate and cardiorespiratory interactions (CRI) is predominantly parasympathetic in all jawed vertebrates, with the sympathetic nervous system having some influence in tetrapods. Respiratory sinus arrhythmia (RSA) has been described as a solely mammalian phenomenon but respiration-related beat-to-beat control of the heart has been describe
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-07
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7. NANOESTRUTURAS DE ZNO ALTAMENTE LUMINESCENTE: SYNTESIS Y CARACTERIZACIÓN / NANOESTRUTURAS DE ZNO ALTAMENTE LUMINESCENTE: SÍNTESE E CARACTERIZAÇÃO / HIGHLY LUMINESCENT ZNO NANOESTRUCTURES: SYNTHESIS AND CHARACTERIZATION
Zinc Oxide hás been synthesized by evaporation, condensation, and oxidation of methallic zinc under atmospheric pressure. Two methods of synthesis, denominated stationary and dynamic, were developed in this study. In the stationary system has the local control of temperature and a alumina tube-furnace reactor has been used. Zn was evaporated at 900-1000 C i
Publicado em: 2007
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8. Molecular synapomorphies resolve evolutionary relationships of extant jawed vertebrates
The evolutionary relationships of gnathostomes (jawed vertebrates), which comprise chondrichthyans (cartilaginous fishes), lobe-finned fishes (coelacanths and lungfishes), tetrapods, and actinopterygians (ray-finned fishes), have been debated for almost a century. Phylogenetic analyses based on fossils, morphology, and molecular sequences have generated
The National Academy of Sciences.
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9. A revision of the extensor muscles of the forearm in tetrapods
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10. The Primitive Form of Epiphysis in the Long Bones of Tetrapods
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11. The Complete DNA Sequence of the Mitochondrial Genome of a ``living Fossil,'' the Coelacanth (Latimeria Chalumnae)
The complete nucleotide sequence of the 16,407-bp mitochondrial genome of the coelacanth (Latimeria chalumnae) was determined. The coelacanth mitochondrial genome order is identical to the consensus vertebrate gene order which is also found in all ray-finned fishes, the lungfish, and most tetrapods. Base composition and codon usage also conform to typical ve
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12. Evolutionary relationships of the coelacanth, lungfishes, and tetrapods based on the 28S ribosomal RNA gene.
The origin of land vertebrates was one of the major transitions in the history of vertebrates. Yet, despite many studies that are based on either morphology or molecules, the phylogenetic relationships among tetrapods and the other two living groups of lobe-finned fishes, the coelacanth and the lungfishes, are still unresolved and debated. Knowledge of the r