Functional Stimulus Class
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Discriminações simples simultâneas e sucessivas - na formação de classes funcionais / Simple simultaneous and successive discriminations and the emergence of functional classes
Functional classes can be established thorough simple discrimination and repeated reversals training. However, successive reversals necessarily involve experience with the occurrence of errors, which may interfere with class formation. A previous study using this procedure indeed generated a pattern of errors that seemed to be related to the position of the
Publicado em: 2010
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2. Analise proteomica de soro de ratos em diferentes situações de exercicio e uma experiencia de pesquisa em ensino / Serum proteomic analysis of rats in differents exercise situations and an experience in teaching
The adaptive response to a training program is related to an intensive process of protein synthesis, which cumulative effect of multiple sessions of exercise leads to muscle phenotypic alterations and increases different physical capacities. For such adaptation an appropriate time for recovery between stimuli is required. A continuous process of intensified
Publicado em: 2009
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3. Ciclimo de velocidade : uma proposta de controle da preparação fisica especial / Short track races : a proposal control of the special physical preparation
The cyc1ing is an Olympic sport composed by events with different motor capacities, demanding a particular and deepened study of each one. In the last years the race bicycles had passed for great technological evolution, making of the light and resistant materials, important for the increase of the sporting performance, however only the easiness of access to
Publicado em: 2008
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4. The emergence of condictional relations among stimuli as the result of a simple simultaneous discrimination trining of pairs of stimuli / A emergência de relações condicionais entre estímulos como resultado de treino de pares de discriminações simples simultâneas
Classes de estímulos têm sido definidas por um conjunto de determinadas propriedades que compartilham. Analistas do comportamento têm estudado procedimentos para produzir e para identificar ou avaliar a formação de classes de estímulos e mais recentemente têm proposto que há mais de um tipo de classe de estímulos, por exemplo, classes de estímulos
Publicado em: 2006
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5. Functional role of HLA class I cell-surface molecules in human T-lymphocyte activation and proliferation.
This investigation addressed the role of major histocompatibility complex-encoded class I molecules in the activation and proliferation of human lymphocytes. We studied the effect of antibodies specific for HLA-A and HLA-B locus gene products on mitogen-stimulated peripheral blood mononuclear cell (PBMC) subpopulations. Three individually derived, well-chara
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6. Pitch perception: A dynamical-systems perspective
Two and a half millennia ago Pythagoras initiated the scientific study of the pitch of sounds; yet our understanding of the mechanisms of pitch perception remains incomplete. Physical models of pitch perception try to explain from elementary principles why certain physical characteristics of the stimulus lead to particular pitch sensations. There are tw
The National Academy of Sciences.
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7. 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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8. Chronic experimental Chagas' disease: functional syngeneic T-B-cell cooperation in vitro in the absence of an exogenous stimulus.
We have investigated CD4+ T-cell autoreactivity to normal syngeneic B cells in vitro in chronic experimental Chagas' disease. Resting B cells induced an intense proliferative response and lymphokine secretion by splenic CD4+ T cells from Trypanosoma cruzi-infected (8 months or more of infection) donors, compared to much lower responses by uninfected controls
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9. A potential signaling role for profilin in pollen of Papaver rhoeas.
Regulation of pollen tube growth is known to involve alterations in intracellular calcium levels and phosphoinositide signaling, although the mechanisms involved are unclear. However, it appears likely that pollination events involve a complex interplay between signaling pathways and components of the actin cytoskeleton in pollen. In many eukaryotic cells, a
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10. Endotoxin-Induced Gamma Interferon Production: Contributing Cell Types and Key Regulatory Factors
Gamma interferon (IFN-γ) is an important mediator of endotoxin (lipopolysaccharide [LPS])-induced immune responses. However, the specific cell types that produce IFN-γ in response to LPS and the cellular factors that regulate LPS-induced IFN-γ production have not been fully determined. The present studies were undertaken to characterize the cell populatio
American Society for Microbiology.
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11. Both amino- and carboxyl-terminal sequences within I kappa B alpha regulate its inducible degradation.
Nuclear expression and consequent biological action of the eukaryotic NF-kappa B transcription factor complex are tightly regulated through its cytoplasmic retention by an ankyrin-rich inhibitory protein termed I kappa B alpha. I kappa B alpha specifically binds to and masks the nuclear localization signal of the RelA subunit of NF-kappa B, thereby effective