37 resultados para atenuação do ruído de rolamento superficial, ground roll, transformada curvelet, processamento sísmico, ondas de Rayleigh


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Research in sport ethics has traditionally focused on the ethical dimensions of the sport event and athletes, however the examination of the principles of ethics to the management and organisation of sport is a relatively recent phenomenon. The tension between the roles and responsibilities of sport as a business, and sport as an ethical and moral aspect of society has forced sport organisations to face an increased number of complex ethical dilemmas. As sport systems throughout the world become further professionalised and bureaucratised, the community understanding of what is ‘good’ is challenged. It is a commonly held expectation that there should be a high level of moral behaviour from those participating directly in the sport event (athletes, coaches, referees), however this expectation has extended to the sporting clubs and organisations which govern the sport itself.

Often used interchangeably, ethics and morality are complex terms concentrating on issues of right and wrong behaviour. Beauchamp and Bowie (1993) stated that the term morality suggests a social institution, composed of a set of standards which are pervasively acknowledged by the members of a culture, or alternatively a social construction. The application of ethics and moral values to the business environment applies across all sectors, including for-profit, non-profit and government, however Rubin (1990) found that the normative ethics, those which society accepts as ethical behaviour, varies from sector to sector. In the non-profit sector, to which many sport organisations belong, Rubin (1990) found that because the community expects more ‘good’, they accept less ‘bad’. As many sport organisations throughout the world remain largely non-profit, linked with the commonly held belief that sport is a foundation for moral behaviours, the idealistic expectation of ethical conduct placed upon them may be different to those of more mainstream business organisations.

Mewett (2003) noted the importance of sport as a social phenomenon which ramifies widely through society to become an intrinsic part of culture and community life. The different expectations of ethical conduct and moral value placed on sport organisations increases the public interest in the ethical dilemmas faced by these organisations. Using the concept of conflict of interest as an example, this paper will examine the tension and difference between the community and social understanding and expectations of sport, and those of the sport organisations themselves.

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This is the journey of a man suffering from Parkinson's disease. Ross Collins tells of his past twelve years' experiences of living with Parkinson's. Before, he had a steady job with Victoria Police, with promising future prospects; and was happily married with two young children. The disease struck him at an early age, changing his life and setting him on a different course. His outlook on life has changed, and his decision-making influenced; as well, his relationships with his family affected. He feels normal only when he is shaking, rattling and rolling along on his Harley. His wish for a cure leads him to pin his hopes on faith healing by the 'miracle man', in Brazil. The first two visits did not seem to have done anything to improve his physical condition. Ross is returning to Brazil for the third time, hoping against hope that his condition could be improved by a miracle healing. This documentary gives an intimate look into the life of a Parkinson's disease sufferer and that of his family. Includes al.

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Bird assemblages in woodlands of southern Australia are characterised by a high proportion of ground-foraging species, many of which are experiencing population declines. We examined the foraging sites of 13 species of ground-foraging birds, including four common species and nine declining species, in four study areas representing different woodland types. Microhabitat features were recorded within a 3-m radius of observed foraging points and compared with random points. Significant differences between foraging and random plots were detected for all but one species, clearly indicating selection for foraging habitat. However, levels of dissimilarity between foraging and random plots were low, suggesting that much of the woodland study area is suitable for foraging. Microhabitat features of particular importance for multiple species were a low density of trees and shrubs, a high cover of native herbs, and fallen timber on the ground. Sites amidst dense trees tended not to be used. Several species had more particular requirements, such as the Diamond Firetail (Stagonopleura guttata) for grass cover and the White-winged Chough (Corcorax melanorhamphos) for litter cover. There was no evidence that declining species showed a greater degree of selection or were more restricted in the availability of foraging microhabitats than common species. Several of the key attributes of preferred foraging sites, such as tree density, can be actively managed at the local scale. A heterogeneous ground layer is needed to provide suitable foraging habitat for the full suite of ground-foraging birds. Achieving suitable heterogeneity in present-day woodlands will require careful and active management of various disturbance processes.

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During the 1990s, states embraced legalised gambling as a means of supplementing state revenue. But gaming machines (EGMs, pokies, VLTs, Slots) have become increasingly controversial in countries such as Australia, Canada and New Zealand, which experienced unprecedented roll-out of gaming machines in casino and community settings; alongside revenue windfalls for both governments and the gambling industry. Governments have recognised that gambling results in a range of social and economic harms and, similar to tobacco and alcohol, have introduced public policies predicated on harm minimisation. Yet despite these, gaming losses have continued to climb in most jurisdictions, along with concerns about gambling-related harms. The first part of this article discusses an emerging debate in Ontario Canada, that draws parallels between host responsibility in alcohol and gambling venues. In Canada, where government owns and operates the gaming industry, this debate prompts important questions on the role of the state, duty of care and regulation ‘in the public interest’ and on CSR, host responsibility and consumer protection. This prompts the question: Do governments owe a duty of care to gamblers?

The article then discusses three domains of accumulating research evidence to inform questions raised in the Ontario debate: evidence that visible behavioural indicators can be used with high confidence to identify problem gamblers on-site in venues as they gamble; new systems using player tracking and loyalty data that can provide management with high precision identification of problem gamblers and associated risk (for protective interventions); and research on technological design features of new generation gaming products in interaction with players, that shows how EGM machines can be the site for monitoring/protecting players. We then canvass some leading international jurisdictions on gambling policy CSR and consumer protection.

In light of this new research, we ask whether the risk of legal liability poses a tipping point for more interventionist public policy responses by both the state and industry. This includes a proactive role for the state in re-regulating the gambling industry/products; instituting new forms of gaming machine product control/protection; and reinforcing corporate social responsibility (CSR) and host responsibility obligations on gambling providers – beyond self-regulatory codes. We argue the ground is shifting, there is new evidence to inform public policy and government regulation and there are new pressures on gambling providers and regulators to avail themselves of the new technology – or risk litigation

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An interstitial free (IF) steel was severely deformed using accumulative roll bonding (ARB) process and warm rolling. The maximum equivalent strains for ARB and warm rolling were 4.8 and 4.0, respectively. The microstructure and micro-texture were studied using optical microscopy and scanning electron microscopy equipped with electron back scattered diffraction (EBSD). The grain size and misorientation obtained by both methods are in the same range. The microstructure in the ARB samples after 6 cycles is homogeneous, although a grain size gradient is observed at the layers close to the surface. The through thickness texture gradient in the ARB samples is different from the warm rolled samples. While a shear texture (⟨110⟩//rolling plane normal direction (ND)) at the surface and rolling texture at the center region is developed in the ARB  samples, the overall texture is weak. The warm rolled samples display a sharp rolling texture through the thickness with increasing the sharpness toward the center. These differences are attributed to the fact that the central region of ARB strip is comprised of material that was once at the surface. The ARB process  can suppress the formation of shear bands which are conventional at warm rolled IF steels. EBSD study on the sample with 6th cycle of ARB following the annealing at 750 ◦C verified a texture gradient through the thickness of the sheet. The shear orientations at the surface and at the quarter thickness layers can be identified even after annealing. The overall weak texture and existence of shear orientations make ARB processed samples unfavorable for sheet metal forming in compare with warm rolled samples.

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[No Abstract]

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This paper assesses the response of four common species of forest dependant insectivorous birds to an urban–forest gradient. The presence or absence was recorded for each species in landscapes that varied in landscape and site level attributes. Landscapes were classified into three categories based on their level of urbanisation. Broad comparisons across the landscapes were used to determine species specific response to increasing levels of urbanisation. Site level attributes were modelled to predict the patch occupancy for each species in each of the landscape types. Two broad trends were identified: the superb fairy wren (Malurus cyaneus) and white-browed scrubwren (Sericornis frontalis) displayed a tolerance to urbanisation and the eastern yellowrobin (Eosaltrica australis) and white throated treecreeper (Cormobates leucophaeus) demonstrated a threshold response to urbanisation. The density of roads (−ve) and the extent of tree cover (+ve) in a landscape were highly correlated with the occurrence of urban sensitive species while at the site level the density of roads and density of rivers were the strongest contributors to their presence. The marked differences in the isolation and connectivity of patches where the threshold for urban sensitive species ceases are the likely contributors to their decline and sensitivity to suburban habitats. Conservation and management of urban sensitive species is largely dependant on the way urban development is managed. Of critical importance is careful planning in urban-fringe environments.