Smearing
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Microscopic detection of Mycobacterium tuberculosis in direct or processed sputum smears
Abstract INTRODUCTION: Microscopic identification of active pulmonary tuberculosis (PTB) from direct smears of sputum (DS) is widely used for detection, but has limited sensitivity. Here, we assessed the yield of acid-fast bacilli (AFB) detection in processed sputum smears (PSS). METHODS: Sputum samples were simultaneously analyzed by direct sputum smear
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-04
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2. Influence of graphite particles on surface roughness and chip formation studies in turning metal matrix composites
This study presents an experimental investigation on surface roughness and chip formation in turning of Al 2219/15SiCp and Al 2219/15SiCp-3Gr (hybrid) composites. Experiments were conducted with different cutting conditions using carbide, coated carbide and polycrystalline diamond (PCD) tools. The results reveal that the surface roughness values are less for
Mat. Res.. Publicado em: 25/06/2013
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3. Uma proposta de método de análise de velocidade em seções sísmicas de ponto médio comum baseada no paradigma de espalhamento de amplitudes / A proposal on common mid-point seismic section velocity analysis based on amplitude smearing paradigm
Técnicas que usam dados sísmicos organizados em famílias de ponto médio comum (CMP), como correção de sobretempo normal (NMO), empilhamento e análise de velocidade, estão no núcleo do processamento sísmico. Elas são combinações de procedimentos que se baseiam na física, processamento de sinais e leis básicas da estatística. Em geral, todas el
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/03/2010
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4. Scattering of GeV electrons in the framework of the relativistic hartree approximation
The high momentum transfer electron-nucleus scattering cross section is evaluated within the plane wave impulse approximation (PWIA) supplemented by the relativistic Hartree approximation (RHA). Binding effects on the struck nucleon are introduced through the scalar and vector meson-exchange fields within the framework of quantum hadrodynamics. This model na
Brazilian Journal of Physics. Publicado em: 2004-09
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5. Solar Abundance of Gallium
The spectral region around the λ4172 Å resonance line of gallium has been synthesized at disk positions μ = 1.0, 0.5, and 0.3. The center-limb variation can be reproduced by Elste's semiempirical model if a macroturbulent smearing of the emergent spectrum due to mass motions with mean velocity decreasing with altitude are introduced. The abundance of Ga d
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6. Concentration and identification of Cryptosporidium sp. by use of a parasite concentrator.
A new disposable plastic tube device and technique for ovum and parasite concentration, with upper and lower chambers separated by a fine screen, was compared with the standard gauze and open-funnel filtration technique as well as with the technique of direct smearing with an acid-fast stain. The new concentrator was distinctly superior to gauze filtration i
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7. Sequence-specific binding of luzopeptin to DNA.
We have examined the binding of luzopeptin, an antitumor antibiotic, to five DNA fragments of varying base composition. The drug forms a tight, possibly covalent, complex with the DNA causing a reduction in mobility on nondenaturing polyacrylamide gels and some smearing of the bands consistent with intramolecular cross-linking of DNA duplexes. DNAase I and m
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8. The chromatin structure of an actively expressed, single copy yeast gene.
When the yeast galactokinase gene is not active (repressed, not expressed, quiescent), there is an exceptionally regular nucleosome array on coding sequence galactokinase chromatin, as shown by both denaturing and non-denaturing gel analysis of staphylococcal nuclease digests. Expression of the gene results in a limited smearing of the nucleosome repeat peak
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9. Bacterial Symbionts in the Sugar Beet Root Maggot, Tetanops myopaeformis (von Röder) †
Aerobic heterotrophic and facultative anaerobic bacteria were isolated from all developmental stages of the sugar beet root maggot, Tetanops myopaeformis (von Röder). Two distinct bacterial symbiotic relationships were observed. Serratia liquefaciens and Serratia marcescens were found to be associated with all developmental stages. Bacterial symbiont transm
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10. An Abundant DNA Binding Protein from the Hyperthermophilic Archaeon Sulfolobus shibatae Affects DNA Supercoiling in a Temperature-Dependent Fashion
The DNA binding protein Ssh10b, a member of the Sac10b family, has been purified from the hyperthermophilic archaeon Sulfolobus shibatae. Ssh10b constitutes about 4% of the cellular protein. Electrophoretic mobility shift assays showed that Ssh10b first bound a double-stranded DNA fragment with an estimated binding size of ∼∼12 bp, forming distinct shift
American Society for Microbiology.
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11. Gapped DNA is anisotropically bent
Ionizing radiation damages DNA in several ways, including through formation of a single-nucleoside gap in one DNA strand. We have developed a two-dimensional gel electrophoresis method to investigate the effect of a strand gap on DNA structure. We generate a library of gapped DNA molecules by treating a DNA restriction fragment with the hydroxyl radical, gen
The National Academy of Sciences.