953 resultados para Mobile Phones


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Mobile phones in Australia record one of the world’s highest rates of ownership among children under 18. This paper examines issues of mobile phones and Australian children and the various discourses (systematic frames) used in discussing their effects. These are the optimistic (gains); pessimistic (losses, costs or harms); pluralistic (technology per se is neutral but how it is used matters); historical development (importance and skills learnt); futuristic predictions (promises and dangers); current uses (connectivity, convergence and interactivity); and techno-realist view (as a mixed blessing). Taking the Justification View of Technology that sees technological adoption as a gamble and borrowing from Joshua Meyrowitz, it examines how mobile phones have eroded parental power over how, when, where and with whom their children communicate, while at the same time, becoming a ‘digital leash’ for parents to re-establish their control and an ‘umbilical cord’ of children to remain connected with parents at all times.

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Despite massive funding from the Australian government, the literacy achievement of Australian Indigenous children remains significantly lower than for non-Indigenous. With the aim of identifying innovative ways to improve Indigenous children's literacy achievement, this study explored the social practices surrounding everyday mobile phone use by Indigenous people in a remote Australian community. Informed by the notion of ‘placed resources’, which highlights the understanding that digital literacies are best considered as resources situated by social practices that have local effect, the study surveyed 95 people living in a remote Indigenous community about their mobile phone practices. The study also examined a video of a literacy event between a mother and her child around the use of a mobile phone. The findings revealed the strong relational aspects of phone use in remote communities. Integral to the concept of placed resources is a respect for the practices communities find important as they adopt artefacts for their everyday communication.

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It is now time for teachers as well as colleges to make a place for mobile learning within the classroom setting. Teachers should be encouraged to integrate mobile phones for teaching and learning within the classroom, as they can be seen as an effective learning tool for students of all ages. We believe that mobile phone bans in colleges should be reviewed and reconsidered. This paper draws on some important aspects which mobile phones can bring into the classroom; it illustrates how mobile phones can fit seamlessly in a normal classroom environment; and the advantages that they provide. A possible integration method which encourages collaboration among students and teacher will be discussed and proposed.

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The World Health Organization has recently focused attention on guidelines for night noise in urban areas, based on significant medical evidence of the adverse impacts of exposure to excessive traffic noise on health, especially caused by sleep disturbance. This includes serious illnesses, such as hypertension, arteriosclerosis and myocardial infarction. 2Loud? is a research project with the aim of developing and testing a mobile phone application to allow a community to monitor traffic noise in their environment, with focus on the night period and indoor measurement. Individuals, using mobile phones, provide data on characteristics of their dwellings and systematically record the level of noise inside their homes overnight. The records from multiple individuals are sent to a server, integrated into indicators and shared through mapping. The 2Loud? application is not designed to replace existing scientific measurements, but to add information which is currently not available. Noise measurements to assist the planning and management of traffic noise are normally carried out by designated technicians, using sophisticated equipment, and following specific guidelines for outdoors locations. This process provides very accurate records, however, for being a time consuming and expensive system, it results in a limited number of locations being surveyed and long time between updates. Moreover, scientific noise measurements do not survey inside dwellings. In this paper we present and discuss the participatory process proposed, and currently under implementation and test, to characterize the levels of exposure to traffic noise of residents living in the vicinity of highways in the City of Boroondara (Victoria, Australia) using the 2Loud? application.

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Background: Over the last few years mobile phone applications have been designed for healthcare professionals. However, little is known in regards to healthcare professionals’ use of and attitudes towards using smartphones (and applications) within clinical practice. Thus the aims of the present study were to enumerate the number of healthcare professionals that use mobile phones within clinical practice and their attitudes towards using them. Furthermore, given that the internet preceded smartphones, we also established healthcare professionals’ attitudes towards internet use in clinical practice as a comparison.

Method: Forty-three healthcare professionals from a range of disciplines and specialities who were predominantly working in Australia completed an anonymous online survey. 


Results: Ninety-one per cent of healthcare professionals owned a mobile phone of which 87% used it during clinical practice. No healthcare professional was supplied with a smartphone by their clinical/healthcare workplace. Consequently they used their privately owned device. For ten out of eleven analogous statements healthcare professionals had significantly more positive attitudes towards internet than mobile phone use in clinical practice. However, attitudes for eight of the ten statements pertaining to mobile phone use were positive. Mobile phones were perceived negatively in regard to confidentiality. Furthermore, healthcare professionals’ also had the perception that patients may think  that they are using their mobile for non-medical purposes.

Conclusion: Mobiles, including smartphones, are commonly used within clinical practice and at present most healthcare professionals use their privately owned device. Despite healthcare professionals having more positive attitudes toward internet use, their attitudes towards mobile use were largely positive. Our results suggest that mobile phone use, in particular smartphone use, within clinical practice is likely to increase in the future. 

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Abstract: Despite ample medical evidence of the adverse impacts of traffic noise on health, most policies for traffic noise management are arbitrary or incomplete, resulting in serious social and economic impacts. Surprisingly, there is limited information about citizen’s exposure to traffic noise worldwide. This paper presents the 2Loud? mobile phone application, developed and tested as a methodology to monitor, assess and map the level of exposure to traffic noise of citizens with focus on the night period and indoor locations, since sleep disturbance is one of the major triggers for ill health related to traffic noise. Based on a community participation experiment using the 2Loud? mobile phone application in a region close to freeways in Australia, the results of this research indicates a good level of accuracy for the noise monitoring by mobile phones and also demonstrates significant levels of indoor night exposure to traffic noise in the study area. The proposed methodology, through the data produced and the participatory process involved, can potentially assist in planning and management towards healthier urban environments.

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In this article, I explore how immigrants from the West African nation of Guinea-Bissau living in Portugal use mobile phones in their daily lives in Lisbon. Whereas one might assume that mobile phones and other new information technologies facilitate transnational communication between Africa and Portugal, the ethnographic fieldwork that I conducted in Lisbon from 1999 to 2003 revealed a different scenario. Instead, mobile phones as imagined and used by the Guinean immigrants I met in Lisbon revealed less about transnationalism and globalization than they did about constructing community and identity in a new locale. As Guinean immigrants in Portugal reconfigured their relationship to their former colonizers and struggled to make their way in a new, multicultural Europe, they used their mobile phones to engage local networks, shape local identities, and transform Lisbon's sprawl into an African migrant village. Here, I highlight the gendered dimensions of this process and contend that Guinean men's and women's varied uses of mobile phones in Lisbon underscore contrasting experiences of migration, mobility, and belonging.

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In this article, I explore how immigrants from the West African nation of Guinea-Bissau living in Portugal use mobile phones in their daily lives in Lisbon. Whereas one might assume that mobile phones and other new information technologies facilitate transnational communication between Africa and Portugal, the ethnographic fieldwork that I conducted in Lisbon from 1999 to 2003 revealed a different scenario. Instead, mobile phones as imagined and used by the Guinean immigrants I met in Lisbon revealed less about transnationalism and globalization than they did about constructing community and identity in a new locale. As Guinean immigrants in Portugal reconfigured their relationship to their former colonizers and struggled to make their way in a new, multicultural Europe, they used their mobile phones to engage local networks, shape local identities, and transform Lisbon's sprawl into an African migrant village. Here, I highlight the gendered dimensions of this process and contend that Guinean men's and women's varied uses of mobile phones in Lisbon underscore contrasting experiences of migration, mobility, and belonging.

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The main objective of this article is to characterize the reverse logistics system for mobile phones in Spain. The study includes the characterization of the different actors involved in the reverse logistics system and the description of the most common logistics practices in the sector. We will also opose alternative practices for managing this complex reverse logistics system and finally, we analyse the challenges of the current reverse logistics model. Some alternatives for the current model are location of reception points for end-of-use mobiles, the need to legislate the secondhand mobile phone market, and the location of the necessary recycling centres according to current legislation.

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Improving the security of mobile phones is one of the crucial points required to assure the personal information and the operations that can be performed from them. This article presents an authentication procedure consisting of verifying the identity of people by making a signature in the air while holding the mobile phone. Different temporal distance algorithms have been proposed and evaluated through a database of 50 people making their signatures in the air and 6 people trying to forge each of them by studying their records. Approaches based on DTW have obtained better EER results than those based on LCS (2.80% against 3.34%). Besides, different signal normalization methods have been evaluated not finding any with better EER results that when no normalization has carried out.

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Thermal decomposition of printed circuits boards (PCB) is studied, using thermogravimetric analysis to compare the thermal behavior of PCB of mobile phones before and after the removal of the metallic fraction by acid washing. Several dynamic and dynamic + isothermal runs have been carried out at different heating rates (5, 10 and 20 K min−1), from room temperature to more than 1100 K. Also runs in the presence and in the absence of oxygen were performed (combustion and pyrolysis runs). Moreover, TG–MS experiments were performed (both in inert and oxidizing atmosphere) in order to better understand the thermal decomposition of these wastes and identify some compounds emitted during the controlled heating of these materials. Different reaction models are proposed, one for pyrolysis and one for combustion of the two kinds of wastes studied, which proved to simulate appropriately the experimental results at all the heating rates simultaneously.

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Paper submitted to the 19th International Symposium on Analytical & Applied Pyrolysis, Linz, Austria, 21-25 May 2012.