67 resultados para 7199
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The article discusses the National Institutes of Health Report and its lack of research on sensory problems in autism.
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UANL
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Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal
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A fast simulated annealing algorithm is developed for automatic object recognition. The normalized correlation coefficient is used as a measure of the match between a hypothesized object and an image. Templates are generated on-line during the search by transforming model images. Simulated annealing reduces the search time by orders of magnitude with respect to an exhaustive search. The algorithm is applied to the problem of how landmarks, for example, traffic signs, can be recognized by an autonomous vehicle or a navigating robot. The algorithm works well in noisy, real-world images of complicated scenes for model images with high information content.
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Artículo incluido en el número de la revista dedicado íntegramente a la violencia de género
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El trabajo que presentamos tiene como objetivo fundamental analizar los mecanismos semióticos en virtud de los cuales el desarrollo cognitivo de los individuos es construido en interacciones de naturaleza instruccional. Se maneja una consideración de la interiorización, como el resultado de un conjunto de acciones que instructoras y aprendices desarrollan en la resolución conjunta de problemas. Se defiende que el empleo de diferentes mecanismos semióticos, especialmente la perspectiva referencial, pueden contribuir a esta transición. Se presentarán los resultados obtenidos en una investigación en el marco de la Educación de Adultos en las que uno de los miembros de una pareja actúa de instructor y otro de aprendiz. Estos debían construir conjuntamente unas historias con una serie de tarjetas para después narrar su contenido. El análisis se centra en el nivel estratégico de las acciones así como en los procedimientos semióticos empleados en la mediación de éstas
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The response to painful stimulation depends not only on peripheral nociceptive input but also on the cognitive and affective context in which pain occurs. One contextual variable that affects the neural and behavioral response to nociceptive stimulation is the degree to which pain is perceived to be controllable. Previous studies indicate that perceived controllability affects pain tolerance, learning and motivation, and the ability to cope with intractable pain, suggesting that it has profound effects on neural pain processing. To date, however, no neuroimaging studies have assessed these effects. We manipulated the subjects' belief that they had control over a nociceptive stimulus, while the stimulus itself was held constant. Using functional magnetic resonance imaging, we found that pain that was perceived to be controllable resulted in attenuated activation in the three neural areas most consistently linked with pain processing: the anterior cingulate, insular, and secondary somatosensory cortices. This suggests that activation at these sites is modulated by cognitive variables, such as perceived controllability, and that pain imaging studies may therefore overestimate the degree to which these responses are stimulus driven and generalizable across cognitive contexts. [References: 28]
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High-resolution vibration-rotation spectra of monofluoroacetylene are reported for many bands in the region 1700 to 7500 cm−1. The spectra were observed on Nicolet 7199 and Bruker IFS 120 Fourier spectrometers, with resolutions of about 0.06 and 0.003 cm−1, respectively. About 130 bands have been observed in this region, of which about 80 have been rotationally analyzed. The assignment of vibrational labels to the higher energy levels is complicated by the effects of strong Fermi resonances, and many weak localized rotational resonances are observed.
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Este trabalho trata sobre continuidades e rupturas nas políticas de assistência à infância em relação às diferentes concepções de família, infância, direitos e bem-estar de crianças e adolescentes. Particularmente aborda o caso do acolhimento familiar em Porto Alegre (Rio Grande do Sul, Brasil) e visa analisar os diversos programas de colocação familiar implementados entre 1946 e 2003. Sua história se apresenta como um exemplo de continuidade no que refere à participação de membros da comunidade em programas públicos de assistência, que envolvem várias gerações, tanto entre as famílias de acolhida como entre as famílias de origem. Neste trabalho, a questão da extraordinária longevidade (de mais de cinco décadas) do sistema de acolhimento familiar é abordada a partir da analise etnográfica da experiência de famílias participantes do Programa Lares Substitutos -última das modalidades de colocação familiar implementada pela FEBEM-RS. Essa perspectiva revela a forma como os mecanismos oficiais de funcionamento do programa se reformularam a partir das práticas informais de circulação de crianças. Essas práticas, já existentes dentro da comunidade, colaboraram os objetivos originalmente planejados desde a administração, otimizando a utilização dos recursos disponibilizados pelos poderes públicos. A suspensão do Programa Lares Substitutos -que implica a ruptura da política oficial de acolhimento familiar, mas não da prática informal de circulação de crianças- é analisada no contexto das mudanças produzidas no marco do processo de implementação do Estatuto da Criança e do Adolescente, entre 1994 e 2003.
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Orange juice (OJ) is regularly consumed worldwide, but its effects on plasma lipids have rarely been explored. This study hypothesized that consumption of OJ concentrate would improve lipid levels and lipid metabolism, which are important in high-density lipoprotein (HDL) function in normolipidemic (NC) and hypercholesterolemic (HCH) subjects. Fourteen HCH and 31 NC adults consumed 750 mL/day OJ concentrate (1:6 OJ/water) for 60 days. Eight control subjects did not consume OJ for 60 days. Plasma was collected before and on the last clay for biochemical analysis and an in vitro as
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New records of five species of batflies (Diptera: Streblidae and Nycteribiidae) on vespertilionid bats are provided from S (a) over tildeo Paulo State, Brazil.
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The total number and distribution per antennal flagellomere of sensilla placodea (olfactory disks), sensilla coeloconica, sensilla ampullacea and sensilla campaniformia were determined in workers of Nannotrigona testaceicornis Lepeletier a stingless bee species quite common in Brazil. The distribution of the sensilla was uniform, with the largest number occurring in flagellomere 10 and gradually decreasing in the direction of the basal flagellomeres in a way similar to that observed in Scaptotrigona postica Latreille.Nannotrigona testaceicornis had a larger number of sensilla ampullacea and a smaller number of sensilla coeloconica and sensilla campaniformia than Scaptotrigona postica. Although Nan notrigona testaceicornis does not communicate through the formation of pheromone trails, this species presents a larger quantity of sensilla placodea (relative to the length of the flagellum) than Scaptotrigona postica.