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Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Formalismo de Hamilton-Jacobi em sistemas cosmolÃgicos
Neste trabalho estudamos caracterÃsticas do universo primitivo, que ocorre logo apÃs a era de Planck. Mostraremos o paradigma atual da cosmologia moderna baseado na teoria da inaÃÃo cosmolÃgica. Essa teoria foi proposta na dÃcada de 80 e explica alguns problemas associados a teoria do Big Bang, como o da platitude e do horizonte. Resolvemos as equaÃÃ
Publicado em: 2009
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2. Reparo nervoso primario em ratos, usando auto-enxerto de musculo esqueletico imediatamente apos injeção de lidocaina
We evaluated the potential of muscle autografts to perform primary nerve repair when used immediately after their preparation with lidocaine injection. The right sciatic nerve of adult Wistar rats was sectioned and muscle grafts were used 15 minutes or 24 hours after lidocaine injection, to repair a gap 1.0 cm longo Morphometric analyses showed a decrease in
Publicado em: 2002
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3. High sequence fidelity in a non-enzymatic DNA autoligation reaction.
The success of oligonucleotide ligation assays in probing specific sequences of DNA arises in large part from high enzymatic selectivity against base mismatches at the ligation junction. We describe here a study of the effect of mismatches on a new non-enzymatic, reagent-free method for ligation of oligonucleotides. In this approach, two oligonucleotides bou
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4. SCFMet30-mediated control of the transcriptional activator Met4 is required for the G1–S transition
Progression through the cell cycle requires the coord– ination of basal metabolism with the cell cycle and growth machinery. Repression of the sulfur gene network is mediated by the ubiquitin ligase SCFMet30, which targets the transcription factor Met4p for degradation. Met30p is an essential protein in yeast. We have found that a met4Δmet30Δ double muta
Oxford University Press.
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5. Analysis of the chicken TBP-like protein(tlp) gene: evidence for a striking conservation of vertebrate TLPs and for a close relationship between vertebrate tbp and tlp genes.
TLP (TBP-like protein), which is a new protein dis-covered by us, has a structure similar to that of the C-terminal conserved domain (CCD) of TBP, although its function has not yet been elucidated. We isolated cDNA and genomic DNA that encode chicken TLP (cTLP) and determined their structures. The predicted amino acid sequence of cTLP was 98 and 91% identica