Dynamic Capacities
Mostrando 25-34 de 34 artigos, teses e dissertações.
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25. Modelagem e simulação do processo de separação de oleo de soja-hexano por evaporação
Until the two first decades of century XX, the industrial extraction of oleaginosas were carried out exclusively by mechanical process. This process allow to extracted oil of very good quality, but it leads the left residues in the solid material (pie) to be very high, for example 5% for grains as of soy. Such residues besides implying in loss of oil, affect
Publicado em: 2003
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26. Estudo do controle autonomico da frequencia cardiaca em ciclistas e sedentarios
The main purpose of this work was to study the heart rate (HR) control in subjects with different aerobic capacities, during the following situations: resting, Valsalva Maneuver (VM), Respiratory 8inus Arrhythmia (R8A) and Head-up Tilt (HUT). Participated of this cross-sectional study a group of sedentary subjects (8 group), that didn t practice any regular
Publicado em: 2001
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27. Aspects of Pulmonary Mechanics in Arc Welders' Siderosis
Sixteen working welders with more than seven years' exposure and a chest radiograph suggestive of siderosis and 13 healthy unexposed men were studied. Each subject had a comprehensive medical and work history, physical examination, standard chest film, and pulmonary function investigation (lung volumes, ventilatory capacities, pulmonary compliance in static
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28. Abnormalities of lung function in hay fever.
Twenty subjects with symptoms of hay fever were studied to see whether abnormalities could be detected in the function of small airways. The investigations included dynamic compliance at varying respiratory frequencies, closing capacity, residual volume, transfer factor, and maximal expiratory flow-volume curves. The tests were repeated in the winter when sy
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29. Novel Single-Cell-Level Phenotypic Assay for Residual Drug Susceptibility and Reduced Replication Capacity of Drug-Resistant Human Immunodeficiency Virus Type 1
Human immunodeficiency virus type 1 (HIV-1)-infected individuals who develop drug-resistant virus during antiretroviral therapy may derive benefit from continued treatment for two reasons. First, drug-resistant viruses can retain partial susceptibility to the drug combination. Second, therapy selects for drug-resistant viruses that may have reduced replicati
American Society for Microbiology.
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30. The effects of neonatal median nerve injury on the responsiveness of tactile neurones within the cuneate nucleus of the cat.
1. The capacity of cuneate neurones to attain normal functional properties following neonatal median nerve injury was investigated with single neurone recording in anaesthetized cats, 12-24 months subsequent to a controlled crush injury. Effectiveness of the peripheral nerve injury was confirmed by the abolition of the median nerve compound action potential
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31. Temporal patterning in the responses of gracile and cuneate neurones in the cat to cutaneous vibration.
1. Recordings were made in decerebrate cats from gracile and cuneate neurones responding to vibration-induced inputs from Pacinian corpuscle (P.c.) receptors of the hind-limb and forelimb footpads. The two groups of neurones were compared, in particular for their capacities for responding to cutaneous vibration with phase-locked impulse patterns. 2. In both
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32. Intestinal epithelial restitution. Characterization of a cell culture model and mapping of cytoskeletal elements in migrating cells.
Closure of superficial wounds in epithelia occurs by migration of cells shouldering the wound. We describe an in vitro model of such restitution using a human intestinal epithelial cell line, T84. T84 cells were grown on novel optically transparent type 1 collagen membranes without underlying filter supports. Monolayers so grown display substantial barrier f
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33. Growth-Dependent Stable Carbon Isotope Fractionation by Basidiomycete Fungi: δ13C Pattern and Physiological Process
We grew 11 basidiomycetes in axenic culture to characterize their physiological capacities to fractionate stable C isotopes. Generally, δ13C values of the fungal biomass were (i) enriched in 13C relative to the growth medium, (ii) variable among the isolates, and (iii) dependent on the growth rate and growth stage of the fungi. We found a multiphasic dynami
American Society for Microbiology.
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34. Differential Tissue-Specific Regulation of Antiviral CD8+ T-Cell Immune Responses during Chronic Viral Infection
The hallmarks of the immune response to viral infections are the expansion of antigen-specific CD8+ cytotoxic T lymphocytes (CTLs) after they encounter antigen-presenting cells in the lymphoid tissues and their subsequent redistribution to nonlymphoid tissues to deal with the pathogen. Control mechanisms exist within CTL activation pathways to prevent inappr
American Society for Microbiology.