Virtual Humans
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. Algoritmo de vergencia para o controle de atenção de humanos virtuais
Common research problems treated in literature about Virtual Humans are most related with insertion and representation of these graphic agents in computers. With techological advance and new researches in Computer Graphics and Virtual Reality, new problems can have place, related to the funcionality of the virtual agents. Currently, one of the main challenge
Publicado em: 2005
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14. Cloning of a Gene Encoding an Alt a 1 Isoallergen Differentially Expressed by the Necrotrophic Fungus Alternaria brassicicola during Arabidopsis Infection
Alternaria species are considered some of the most important fungi responsible for allergenic morbidity in humans. The Alternaria protein that elicits the most intense allergic reaction in humans is Alt a 1, yet no biological function has been identified for this protein. In this study, suppression subtractive hybridization and virtual Northern blots were us
American Society for Microbiology.
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15. DNA sequences of Alu elements indicate a recent replacement of the human autosomal genetic complement.
DNA sequences of neutral nuclear autosomal loci, compared across diverse human populations, provide a previously untapped perspective into the mode and tempo of the emergence of modern humans and a critical comparison with published clonally inherited mitochondrial DNA and Y chromosome measurements of human diversity. We obtained over 55 kilobases of sequenc
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16. Thickness of ventromedial prefrontal cortex in humans is correlated with extinction memory
The ventromedial prefrontal cortex (vmPFC) has been implicated in fear extinction [Phelps, E. A., Delgado, M. R., Nearing, K. I. & Ledoux, J. E. (2004) Neuron 43, 897-905; Herry, C. & Garcia, R. (2003) Behav. Brain Res. 146, 89-96]. Here, we test the hypothesis that the cortical thickness of vmPFC regions is associated with how well healthy humans retain the
National Academy of Sciences.
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17. Human phospholamban null results in lethal dilated cardiomyopathy revealing a critical difference between mouse and human
In human disease and experimental animal models, depressed Ca2+ handling in failing cardiomyocytes is widely attributed to impaired sarcoplasmic reticulum (SR) function. In mice, disruption of the PLN gene encoding phospholamban (PLN) or expression of dominant-negative PLN mutants enhances SR and cardiac function, but effects of PLN mutations in humans are u
American Society for Clinical Investigation.
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18. Modulation of cognition-specific cortical activity by gonadal steroids: A positron-emission tomography study in women
There is considerable evidence from animal studies that gonadal steroid hormones modulate neuronal activity and affect behavior. To study this in humans directly, we used H215O positron-emission tomography to measure regional cerebral blood flow (rCBF) in young women during three pharmacologically controlled hormonal conditions spanning 4–5 months: ovarian
National Academy of Sciences.
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19. Multilocus Sequence Typing System for Campylobacter jejuni
The gram-negative bacterium Campylobacter jejuni has extensive reservoirs in livestock and the environment and is a frequent cause of gastroenteritis in humans. To date, the lack of (i) methods suitable for population genetic analysis and (ii) a universally accepted nomenclature has hindered studies of the epidemiology and population biology of this organism
American Society for Microbiology.
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20. Direction-Dependent Control of Balance During Walking and Standing
Human walking has previously been described as “controlled falling.” Some computational models, however, suggest that gait may also have self-stabilizing aspects requiring little CNS control. The fore–aft component of walking may even be passively stable from step to step, whereas lateral motion may be unstable and require motor control for balance, as
American Physiological Society.
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21. Comparative sequencing of human and chimpanzee MHC class I regions unveils insertions/deletions as the major path to genomic divergence
Despite their high degree of genomic similarity, reminiscent of their relatively recent separation from each other (≈6 million years ago), the molecular basis of traits unique to humans vs. their closest relative, the chimpanzee, is largely unknown. This report describes a large-scale single-contig comparison between human and chimpanzee genomes via th
National Academy of Sciences.
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22. Mycobacterial disease, immunosuppression, and acquired immunodeficiency syndrome.
The mycobacteria are an important group of acid-fast pathogens ranging from obligate intracellular parasites such as Mycobacterium leprae to environmental species such as M. gordonae and M. fortuitum. The latter may behave as opportunistic human pathogens if the host defenses have been depleted in some manner. The number and severity of such infections have
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23. Recognition of Mycobacterial Epitopes by T Cells across Mammalian Species and Use of a Program That Predicts Human HLA-DR Binding Peptides To Predict Bovine Epitopes
Bioinformatics tools have the potential to accelerate research into the design of vaccines and diagnostic tests by exploiting genome sequences. The aim of this study was to assess whether in silico analysis could be combined with in vitro screening methods to rapidly identify peptides that are immunogenic during Mycobacterium bovis infection of cattle. In th
American Society for Microbiology.
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24. Virulence factors in Escherichia coli urinary tract infection.
Uropathogenic strains of Escherichia coli are characterized by the expression of distinctive bacterial properties, products, or structures referred to as virulence factors because they help the organism overcome host defenses and colonize or invade the urinary tract. Virulence factors of recognized importance in the pathogenesis of urinary tract infection (U