El esquí alpino adaptado para personas con discapacidad física, sensorial visual e intelectual

El presente trabajo constó de una revisión bibliográfica sobre el esquí alpino adaptado para personas con discapacidad física, sensorial visual e intelectual. En él se describieron las diferentes discapacidades nombradas anteriormente y se recogió la historia del deporte adaptado en general y del esquí alpino adaptado en particular, así como los beneficios psicológicos y psicomotores que aporta en cada una de las tres discapacidades. También se describieron los tipos de material adaptado necesario para su práctica según las discapacidades del deportista; la metodología de enseñanza-aprendizaje y la técnica, desde su evolución hasta las nuevas tendencias metodológicas; el reglamento especial y los factores de riesgo que existen en la competición y las lesiones más frecuentes, analizando los tipos, causas, mecanismo y prevención.

A re-examination of tigerfish growth rates in Lake Kariba

Growth rates of male and female tigerfish Hydrocynus vittatus were determined from length/frequencies of fish from the Sanyati Basin and Sinamwenda estuary, Lake Kariba. Growth rates were similar in both sexes for the first two years, after which females grew faster and reached a greater length. Fish from the Sanyati Basin appeared to grow slightly faster than those from the Sinamwenda Estuary.

Estéticas periféricas: cotidiano e cultura visual no ensino da arte

Admitindo a produção estética como uma importante condição da existência humana, não é difícil entender a importância de se dar voz à juventude que tem uma produção poética rica, ainda desconhecida e pouco explorada à seu favor. Dar voz, aqui, sobretudo às suas imagens visuais, criar oportunidades de explorar a eloquência e as significações dessa literacia visual específica (Gil, 2011) e dar ouvidos ao que nos gritam tais imagens. A pagada aqui defendida se estende aos gadgets, às telas de celular, computadores, videoclipes, games, mangás, entre tantas outras fontes visuais e comportamentais. Assim, no permanente processo de ressignificação da escola, nos parece promissor o máximo aproveitamento das imagens que constituem a cultura visual que envolve o cotidiano dos estudantes. Esperamos que esta pesquisa mostre um pouco da riqueza, força ou energia cultural que existe no universo da pichação e a pertinência de sua reflexão em sala de aula como um caminho de elucidação não apenas dos seus aspectos estéticos e plásticos mas, também redefinir o papel político da afirmação de padrões estético-culturais e assim fortalecer o diálogo com os jovens estudantes periferizados

Effects of rapid decompression and exposure to bright light on visual function in black rockfish (Sebastes melanops) and Pacific halibut (Hippoglossus stenolepis)

Demersal fishes hauled up from depth experience rapid decompression. In physoclists, this can cause overexpansion of the swim bladder and resultant injuries to multiple organs (barotrauma), including severe exophthalmia (“pop-eye”). Before release, fishes can also be subjected to asphyxia and exposure to direct sunlight. Little is known, however, about possible sensory deficits resulting from the events accompanying capture. To address this issue, electroretinography was used to measure the changes in retinal light sensitivity, flicker fusion frequency, and spectral sensitivity in black rockfish (Sebastes melanops) subjected to rapid decompression (from 4 atmospheres absolute [ATA] to 1 ATA) and Pacific halibut (Hippoglossus stenolepis) exposed to 15 minutes of simulated sunlight. Rapid decompression had no measurable influence on retinal function in black rockfish. In contrast, exposure to bright light significantly reduced retinal light sensitivity of Pacific halibut, predominately by affecting the photopigment which absorbs the green wavelengths of light (≈520–580 nm) most strongly. This detriment is likely to have severe consequences for postrelease foraging success in green-wavelength-dominated coastal waters. The visual system of Pacific halibut has characteristics typical of species adapted to low light environments, and these characteristics may underlie their vulnerability to injury from exposure to bright light.

Rediseño de la identidad visual corporativa de Sunlight Consultores S.L

[ES] Como proyecto de fin de carrera se ha elaborado el manual de identidad corporativa de la empresa Sunlight Consultores S.L. Es un trabajo práctico funcional, desarrollado para un cliente real.

Validation of a method for estimating realized annual fecundity in a multiple spawner, the long-snouted seahorse (Hippocampus guttulatus), using underwater visual census

The long-snouted seahorse (Hippocampus guttulatus) (Cuvier, 1829), was used to validate the pre-dictive accuracy of three progressively realistic models for estimating the realized annual fecundity of asyn-chronous, indeterminate, multiple spawners. Underwater surveys and catch data were used to estimate the duration of the reproductive season, female spawning frequency, male brooding frequency, and batch fecun-dity. The most realistic model, a generalization of the spawning fraction method, produced unbiased estimates of male brooding frequency (mean ±standard deviation [SD]=4.2 ±1.6 broods/year). Mean batch fecundity and realized annual fecundity were 213.9 (±110.9) and 903.6 (±522.4), respectively. However, females prepared significantly more clutches than the number of broods produced by males. Thus, methods that infer spawning frequency from patterns in female egg production may lead to significant overestimates of realized annual fecundity. The spawning fraction method is broadly applicable to many taxa that exhibit parental care and can be applied nondestructively to species for which conservation is a concern.

Diversity of estuarine movements of striped bass (Morone saxatilis): a synoptic examination of an estuarine system in southern New Jersey

We determined the dis-tribution of multiple (n=68; 508−978 mm total length [TL]) striped bass (Morone saxatilis) along the estua-rine salinity gradient in the Mullica River−Great Bay in southern New Jersey over two years to determine the diversity of habitat use and the movements of striped bass. Ultrasoni-cally tagged fish were detected in this estuarine area by means of wireless hydrophones deployed at four gates inside the entrance of the study area and farther up to tidal freshwater (38 km). Numerous individuals frequently departed and returned to the estuary, primarily in the spring and late fall over periods of 15−731 days at liberty. The period of residency and degree of movement of individuals to and from the estuary varied extensively among seasons and years. The diversity of movements in and out of, as well as within, the estuary differed from the less-complex patterns reported in earlier studies, perhaps because of the comprehensive and synoptic nature of this study.

Precision and accuracy of fish length measurements obtained with two visual underwater methods

During the VITAL cruise in the Bay of Biscay in summer 2002, two devices for measuring the length of swimming fish were tested: 1) a mechanical crown that emitted a pair of parallel laser beams and that was mounted on the main camera and 2) an underwater auto-focus video camera. The precision and accuracy of these devices were compared and the various sources of measurement errors were estimated by repeatedly measuring fixed and mobile objects and live fish. It was found that fish mobility is the main source of error for these devices because they require that the objects to be measured are perpendicular to the field of vision. The best performance was obtained with the laser method where a video-replay of laser spots (projected on fish bodies) carrying real-time size information was used. The auto-focus system performed poorly because of a delay in obtaining focus and because of some technical problems.