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Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Teste de "impairment" para ativos de longa duração : tratamento contábil de acordo com o SFAS nº 144 / Impairment test of long-lived assets: accounting treatment –SFAS 144
Esse estudo apresenta tratamento do teste de impairment de ativos de longa duração de acordo com as normas contábeis norte-americanas, emitidas pelo Financial Accounting Standards Board (FASB). O teste de impairment é utilizado para evidenciar e mensurar a perda da capacidade de recuperação do valor contábil de um ativo de longa duração. Uma perda p
Publicado em: 2010
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2. Perda do valor de recuperação em ativos de exploração e produção de petróleo e gás / Impairment in oil and gas exploration and production assets
A atividade de exploração e produção (E&P) de óleo e gás caracteriza-se por ser tipicamente de capital intensivo, envolver altos riscos e longos prazos de maturação dos investimentos, evidenciando valores significativos dos ativos empregados e apresentando, consequentemente, dificuldade na recuperação dos valores capitalizados. Assim, o teste para
Publicado em: 2010
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3. Role of Infectious Secretions in the Transmission of Rhinovirus
In a series of studies aimed at investigating the role of environmental surfaces in the transmission of certain respiratory virus infections, it was shown that small amounts of nasal mucus containing rhinovirus (infectious mucus) can spread from fingertips to door knobs, faucet handles, or other environmental surfaces and remain infectious for many hours. Th
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4. Antibiotic Trials for Coronary Heart Disease
The possibility has been raised in recent years that infection might contribute as an inflammatory stimulus to chronic “noninfectious” degenerative diseases. Within the past decade, serious attention has been given to the possibility of bacterial vectors as causal factors of atherosclerosis. To date, the greatest amount of information has related to the
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5. Enhancement of Friend Leukemia Virus Infection in Mice by Guaroa Virus: Quantitation and Action of Various Oncogenic and Nononcogenic Viruses
Previous studies have indicated that Guaroa virus (GV), an arbovirus, enhanced the replication of Friend leukemia virus (FLV) in mice. To study further the interaction of GV and FLV, different levels of FLV activity were inoculated into mice. At a level of activity capable of producing limited splenic response, coinfection with GV resulted in a marked increa
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6. Brush Border Disaccharidases in Dog Kidney and Their Spatial Relationship to Glucose Transport Receptors
The localization of disaccharidases in kidney has been studied by means of the multiple indicator dilution technique. A pulse injection of a solution containing Evans blue dye (plasma marker), creatinine (extracellular marker), and a 14C-labeled disaccharide (lactose, sucrose, maltose, and αα-trehalose), is made into the renal artery of an anesthetized dog
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7. Production of toxic shock syndrome toxin 1 by Staphylococcus aureus as determined by tampon disk-membrane-agar method.
The influence of 17 commercially available tampons on production of toxic shock syndrome toxin 1 (TSST-1) by Staphylococcus aureus was investigated by using a tampon disk method. Filter membranes overlaying agar medium (with or without blood) in small petri dishes were spread inoculated with a TSST-1-producing strain of S. aureus. Disks cut from unrolled tam
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8. Translocation of Sulfate in Soybean (Glycine max L. Merr) 1
Sulfate translocation in soybean (Glycine max L. Merr) was investigated. More than 90% of the sulfate entering the shoot system was recoverable in one or two developing trifoliate leaves. In young plants, the first trifoliate leaf contained between 10 to 20 times as much sulfate as the primary leaves, even though both types of leaf had similar rates of trans
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9. Effect of gamma radiation on retroviral recombination.
To elucidate the mechanism(s) of retroviral recombination, we exposed virions to gamma radiation prior to infecting target cells. By using previously described spleen necrosis virus-based vectors containing multiple markers, recombinant proviruses were studied after a single round of retrovirus replication. The current models of retroviral recombination pred
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10. Biological Evaluation of Carpeting
Studies of microbial contamination were carried out on a carpet strip (acrilan) installed in a laboratory corridor and on two carpet strips (acrilan and wool) installed in two rooms in a pediatric hospital. A sampling procedure of randomly removing 8-mm plugs from the carpets was used for subsequent enumeration and identification of contaminating microorgani
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11. Analysis of vertebrate gap junction protein.
A new method for the purification of gap junctions is described which depends on the extraction of cell monolayers or tissue homogenates with Triton X-100. The major band on SDS-polyacrylamide gel electrophoresis (PAGE) of junctional preparations from a variety of vertebrate sources has an apparent mol. wt. of 16,000 (16 K). Further evidence for the junction
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12. The Incorporation of d-Glucosamine into Glycolipids and Glycoproteins of Membrane Preparations from Phaseolus aureus Hypocotyls 1
Radioactivity from d-glucosamine-14C is incorporated into particulate fractions of hypocotyls of Phaseolus aureus (mung bean) seedlings. Polyacrylamide gel electrophoresis of the sodium dodecyl sulfate-solubilized materials revealed that several polypeptide components varying considerably in molecular weight had become radioactive during the incubation. A co