5 resultados para IRAN - RELACIONES EXTERIORES - RUSIA - 2002-2005
em University of Queensland eSpace - Australia
Resumo:
Something of a design after-thought, mobile phone SMS (Short-Message Services) have been enthusiastically adopted by consumers worldwide, who have created a new text culture. SMS is now being deployed to provide a range of services and transactions, as well as playing a critical role in offering an interactive path for television broadcasting. In this paper we offer a case study of a lucrative, new industry developing internationally at the intersection of telecommunications, broadcasting, and information services—namely, premium rate SMS/MMS. To explore the issues at stake we focus on an Australian case study of policy responses to the development of premium rate mobile messaging services in the 2002-2005 period. In the first part, we give a brief history of premium rate telecommunications. Secondly, we characterise premium rate mobile message services and examine their emergence. Thirdly, we discuss the responses of Australian policy-makers and industry to these services. Fourthly, we place the Australian experience in international context, and indicate common issues. Finally, we draw some conclusions from the peregrinations of mobile message services for regulators grappling with communications policy frameworks.
The 23rd October 2002 dust storm in eastern Australia: characteristics and meteorological conditions
Resumo:
The dust storm of 23 October 2002 covered most of eastern Australia and carried one of the largest recorded dust loads in Australia. In the 6 months leading up to the event, severe drought conditions in eastern Australia, plus above average maximum temperatures resulted in high potential evapo-transpiration rates, producing severe soil moisture deficits and reduced vegetation cover. Although increased wind speeds associated with a fast moving cold front were the meteorological driving force, these winds speeds were lower than those for the previously documented large dust storms. The dust storm was 2400 km long, up to 400 km across and 1.5-2.5 km in height. The plume area was estimated at 840,860 km 2 and the dust load at 0900 h was 3.35-4.85 million tones (Mt). These dust load estimates are highly sensitive to assumptions, regarding visibility-dust concentration relationships, vertical dust concentration profiles and dust ceilings. The event is examined using meteorological records, remote sensing and air quality monitoring. (C) 2004 Elsevier Ltd. All rights reserved.