950 resultados para location-based services


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This paper grew out of the authors’ interest in updating the journalism curriculum at AUT (Aukland University of Technology) to better reflect the impact of online media, including social media, on the work of journalists. The challenge for journalism educators is to remain relevant in rapidly changing news and education environments. Our study suggests that while the vast majority of students have some engagement with social media, particularly social networking, and are aware that it can be a powerful tool for journalists, they are still not entirely comfortable with its techniques and they are not experimenting with social media as a production platform as much as we first thought. In short, it appears that they do not have command of professional fluency with social media tools. In response to these findings we have begun to introduce some social media tools and processes directly into the units we teach, in particular: digital story-telling techniques; the use of Twitter and location-based applications; encouraging the ethical use of Facebook etc. for sourcing stories and talent for interviews; podcasting, soundslides and video for the Web, Dreamweaver, InDesign and PHP-based content management systems. We do not see the work to date as the end-point of the changes that we know are necessary, but we are acutely aware of the limitations (structural, institutional and financial) that suggest we should continue with this small-steps approach for the foreseeable future.

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Web 2.0 has been a dominant concept in recent discussion and development of Internet applications, businesses and uses. Dating from 2004, the term Web 2.0 is variously understood as new forms of website development and delivery technology, changing uses of the Internet to emphasise sociability over consumption, new understandings of the possible financial exploitation of the web, and more broadly, a new way of thinking about the Internet as a whole. However, Web 2.0 is, conceptually, both more and less than these various understandings and we can only grasp why it has become such a key term in contemporary usage by appreciating two key discursive foundations for this term. Firstly, much Web 2.0 thinking is a re-expression of long-held ideas about the Internet and the web. Secondly, at the particular time when Web 2.0 was made popular, net technology policy makers and financial analysts were primarily enthused by the possibilities of broadband networks for improved and more profitable versions of the well-established businesses of telephony and audio-visual entertainment, and had to some extent consigned novel, web-based services to a lesser role, following the dot.com crash. Thus, as I argue in this paper, Web 2.0 can be understood as a key intervention, from within the dot.com / new media business sector, recovering from the crash, that re-asserts the equal legitimacy of the use of networked computing, over high-speed lines, for computing-oriented activities, and not just video on demand and voice over IP. In short, in the first years of this century, discussions about the future of the Internet had become dominated by arguments for increased broadband access, substantially concerned with providing more traditional video and voice services in new ways. The World Wide Web was seen as relatively unimportant for this purpose, even though it was part of the so-called 'triple play' of voice and data services. At this time, first in the hands of Tim O'Reilly and then from others who took up his position, Web 2.0 became a catchy simple term under which to mount a campaign for the renaissance of the World Wide Web as a quite distinct, yet equally important, form of media and communications. So, Web 2.0 provides evidence that, while there is a convergence of all forms of media and communications towards similar data traffic over the Internet, there remain diverging views over the nature, control and use of the Internet, views that express the degree to which corporate players imagine themselves to be 'media', 'telephony' or 'computing' in primary orientation.

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Objective
To explore the experiences and clinical challenges that nurses and nursing assistants face when providing high-quality diabetes-specific management and care for elderly people with diabetes in primary care settings.

Design
Focus-group interviews.

Subjects and setting
Sixteen health care professionals: 12 registered nurses and four nursing assistants from nursing homes (10), district nursing service (5), and a service unit (1) were recruited by municipal managers who had local knowledge and knew the workforce. All the participants were women aged 32–59 years with clinical experience ranging from 1.5 to 38 years.

Results
Content analysis revealed a discrepancy between the level of expertise which the participants described as important to delivering high-quality care and their capacity to deliver such care. The discrepancy was due to lack of availability and access to current information, limited ongoing support, lack of cohesion among health care professionals, and limited confidence and autonomy. Challenges to delivering high-quality care included complex, difficult patient situations and lack of confidence to make decisions founded on evidence-based guidelines.

Conclusion
Participants lacked confidence and autonomy to manage elderly people with diabetes in municipal care settings. Lack of information, support, and professional cohesion made the role challenging.

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In the past 20 years, social change and expectations for both maternal and paternal responsibilities have highlighted the need for services for families to better understand the role of a father in family relationships. In Australia, as well as internationally, there have been many contested understandings about what constitutes ‘good fathering’ in research, social media and in the political sphere. More specifically, there has also been an emerging trend to understand the challenging task of recruiting and maintaining men's involvement in child and family services programmes, particularly those fathers who are deemed a risk to children and mothers, violent or have been separated from their children. That many child and family/welfare services have exercised dedicated effort to work with fathers is still a relatively recent phenomenon, and has only emerged following criticism that services have been too geared towards working only with mothers. Despite this increasing interest, there is still ongoing need for more research to be undertaken in Australia. An important area of focus is the views of professionals about their perception and engagement of fathers, particularly the views of fathers who are described as being absent from family-based services. The purpose of this article is to report briefly on a study undertaken to examine how child and family welfare workers engage fathers in their work. First, this paper will describe some of the social and health benefits to fathers and their children, focusing on the key role of attachment through play. Research into effective service delivery involving fathers will then be presented, concluding with key practice factors necessary for fathers to be involved in family life.

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An economy based on the exchange of capital, assets and services between individuals has grown significantly, spurred by proliferation of internet-based platforms that allow people to share underutilized resources and trade with reasonably low transaction costs. The movement toward this economy of “sharing” translates into market efficiencies that bear new products, reframe established services, have positive environmental effects, and may generate overall economic growth. This emerging paradigm, entitled the collaborative economy, is disruptive to the conventional company-driven economic paradigm as evidenced by the large number of peer-to-peer based services that have captured impressive market shares sectors ranging from transportation and hospitality to banking and risk capital. The panel explores economic, social, and technological implications of the collaborative economy, how digital technologies enable it, and how the massive sociotechnical systems embodied in these new peer platforms may evolve in response to the market and social forces that drive this emerging ecosystem.

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This study aimed to evaluate the effectiveness of a telephone health coaching and support service provided to members of an Australian private health insurance fund-Telephonic Complex Care Program (TCCP)-on hospital use and associated costs. A case-control pre-post study design was employed using propensity score matching. Private health insurance members (n=273) who participated in TCCP between April and December 2012 (cases) were matched (1:1) to members who had not previously been enrolled in the program or any other disease management programs offered by the insurer (n=232). Eligible members were community dwelling, aged ≥65 years, and had 2 or more hospital admissions in the 12 months prior to program enrollment. Preprogram variables that estimated the propensity score included: participant demographics, diagnoses, and hospital use in the 12 months prior to program enrollment. TCCP participants received one-to-one telephone support, personalized care plan, and referral to community-based services. Control participants continued to access usual health care services. Primary outcomes were number of hospital admission claims and total benefits paid for all health care utilizations in the 12 months following program enrollment. Secondary outcomes included change in total benefits paid, hospital benefits paid, ancillary benefits paid, and total hospital bed days over the 12 months post enrollment. Compared with matched controls, TCCP did not appear to reduce health care utilization or benefits paid in the 12 months following program enrollment. However, program characteristics and implementation may have impacted its effectiveness. In addition, challenges related to evaluating complex health interventions such as TCCP are discussed.

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Traditional irrigation projects do not locally determine the water availability in the soil. Then, irregular irrigation cycles may occur: some with insufficient amount that leads to water deficit, other with excessive watering that causes lack of oxygen in plants. Due to the nonlinear nature of this problem and the multivariable context of irrigation processes, fuzzy logic is suggested to replace commercial ON-OFF irrigation system with predefined timing. Other limitation of commercial solutions is that irrigation processes either consider the different watering needs throughout plant growth cycles or the climate changes. In order to fulfill location based agricultural needs, it is indicated to monitor environmental data using wireless sensors connected to an intelligent control system. This is more evident in applications as precision agriculture. This work presents the theoretical and experimental development of a fuzzy system to implement a spatially differentiated control of an irrigation system, based on soil moisture measurement with wireless sensor nodes. The control system architecture is modular: a fuzzy supervisor determines the soil moisture set point of each sensor node area (according to the soil-plant set) and another fuzzy system, embedded in the sensor node, does the local control and actuates in the irrigation system. The fuzzy control system was simulated with SIMULINK® programming tool and was experimentally built embedded in mobile device SunSPOTTM operating in ZigBee. Controller models were designed and evaluated in different combinations of input variables and inference rules base

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Structural Health Monitoring (SHM) has diverse potential applications, and many groups work in the development of tools and techniques for monitoring structural performance. These systems use arrays of sensors and can be integrated with remote or local computers. There are several different approaches that can be used to obtain information about the existence, location and extension of faults by non destructive tests. In this paper an experimental technique is proposed for damage location based on an observability grammian matrix. The dynamic properties of the structure are identified through experimental data using the eigensystem realization algorithm (ERA). Experimental tests were carried out in a structure through varying the mass of some elements. Output signals were obtained using accelerometers.

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The mobile application proposed in this undergraduate project, classified as a Location-Based Service and named Traveller, was developed to support users of mobile phones equipped with GPS in unknown locations by providing information about weather, location of users and stores in urban areas. The mobile devices whose this project is intended are those equipped with Android. The programming language Java was selected and the Eclipse development environment was used along with the toolkit for developing Android (ADT - Android Development Tools)

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The web services (WS) technology provides a comprehensive solution for representing, discovering, and invoking services in a wide variety of environments, including Service Oriented Architectures (SOA) and grid computing systems. At the core of WS technology lie a number of XML-based standards, such as the Simple Object Access Protocol (SOAP), that have successfully ensured WS extensibility, transparency, and interoperability. Nonetheless, there is an increasing demand to enhance WS performance, which is severely impaired by XML's verbosity. SOAP communications produce considerable network traffic, making them unfit for distributed, loosely coupled, and heterogeneous computing environments such as the open Internet. Also, they introduce higher latency and processing delays than other technologies, like Java RMI and CORBA. WS research has recently focused on SOAP performance enhancement. Many approaches build on the observation that SOAP message exchange usually involves highly similar messages (those created by the same implementation usually have the same structure, and those sent from a server to multiple clients tend to show similarities in structure and content). Similarity evaluation and differential encoding have thus emerged as SOAP performance enhancement techniques. The main idea is to identify the common parts of SOAP messages, to be processed only once, avoiding a large amount of overhead. Other approaches investigate nontraditional processor architectures, including micro-and macrolevel parallel processing solutions, so as to further increase the processing rates of SOAP/XML software toolkits. This survey paper provides a concise, yet comprehensive review of the research efforts aimed at SOAP performance enhancement. A unified view of the problem is provided, covering almost every phase of SOAP processing, ranging over message parsing, serialization, deserialization, compression, multicasting, security evaluation, and data/instruction-level processing.

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Ubiquitous Computing promises seamless access to a wide range of applications and Internet based services from anywhere, at anytime, and using any device. In this scenario, new challenges for the practice of software development arise: Applications and services must keep a coherent behavior, a proper appearance, and must adapt to a plenty of contextual usage requirements and hardware aspects. Especially, due to its interactive nature, the interface content of Web applications must adapt to a large diversity of devices and contexts. In order to overcome such obstacles, this work introduces an innovative methodology for content adaptation of Web 2.0 interfaces. The basis of our work is to combine static adaption - the implementation of static Web interfaces; and dynamic adaptation - the alteration, during execution time, of static interfaces so as for adapting to different contexts of use. In hybrid fashion, our methodology benefits from the advantages of both adaptation strategies - static and dynamic. In this line, we designed and implemented UbiCon, a framework over which we tested our concepts through a case study and through a development experiment. Our results show that the hybrid methodology over UbiCon leads to broader and more accessible interfaces, and to faster and less costly software development. We believe that the UbiCon hybrid methodology can foster more efficient and accurate interface engineering in the industry and in the academy.

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This paper describes a logic-based formalism for qualitative spatial reasoning with cast shadows (Perceptual Qualitative Relations on Shadows, or PQRS) and presents results of a mobile robot qualitative self-localisation experiment using this formalism. Shadow detection was accomplished by mapping the images from the robot’s monocular colour camera into a HSV colour space and then thresholding on the V dimension. We present results of selflocalisation using two methods for obtaining the threshold automatically: in one method the images are segmented according to their grey-scale histograms, in the other, the threshold is set according to a prediction about the robot’s location, based upon a qualitative spatial reasoning theory about shadows. This theory-driven threshold search and the qualitative self-localisation procedure are the main contributions of the present research. To the best of our knowledge this is the first work that uses qualitative spatial representations both to perform robot self-localisation and to calibrate a robot’s interpretation of its perceptual input.

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The need for high bandwidth, due to the explosion of new multi\-media-oriented IP-based services, as well as increasing broadband access requirements is leading to the need of flexible and highly reconfigurable optical networks. While transmission bandwidth does not represent a limit due to the huge bandwidth provided by optical fibers and Dense Wavelength Division Multiplexing (DWDM) technology, the electronic switching nodes in the core of the network represent the bottleneck in terms of speed and capacity for the overall network. For this reason DWDM technology must be exploited not only for data transport but also for switching operations. In this Ph.D. thesis solutions for photonic packet switches, a flexible alternative with respect to circuit-switched optical networks are proposed. In particular solutions based on devices and components that are expected to mature in the near future are proposed, with the aim to limit the employment of complex components. The work presented here is the result of part of the research activities performed by the Networks Research Group at the Department of Electronics, Computer Science and Systems (DEIS) of the University of Bologna, Italy. In particular, the work on optical packet switching has been carried on within three relevant research projects: the e-Photon/ONe and e-Photon/ONe+ projects, funded by the European Union in the Sixth Framework Programme, and the national project OSATE funded by the Italian Ministry of Education, University and Scientific Research. The rest of the work is organized as follows. Chapter 1 gives a brief introduction to network context and contention resolution in photonic packet switches. Chapter 2 presents different strategies for contention resolution in wavelength domain. Chapter 3 illustrates a possible implementation of one of the schemes proposed in chapter 2. Then, chapter 4 presents multi-fiber switches, which employ jointly wavelength and space domains to solve contention. Chapter 5 shows buffered switches, to solve contention in time domain besides wavelength domain. Finally chapter 6 presents a cost model to compare different switch architectures in terms of cost.

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L'obiettivo di questa tesi, in base all'analisi di atti di convegni e workshop, lettura di libri e articoli pubblicati in siti Web, in materie di gamification, è per prima cosa, spiegare il concetto della gamification, partendo da alcune definizioni date da ricercatori e progettisti di videogiochi, cercando di capire sia i fattori positivi, sia i fattori negativi. Si vogliono elencare e spiegare gli elementi di gioco che compongono la gamification, con particolare attenzione alle meccaniche, come punti, distintivi, premi e dinamiche, come competenza, espressione di sè, status sociale, elementi collegati tra di loro, analizzando quali meccaniche originano certe dinamiche. Si cercherà anche di analizzare la gamification sotto gli aspetti psicologici e di User Experience che innescano le motivazioni intrinseche ed estrinseche delle persone, le prime azionate dalle meccaniche, le seconde azionate dalle dinamiche della gamification e l'importanza di ciò nella progettazione di applicazioni gamificate. Si vogliono esaminare ed illustrare in generale, progetti i quali adottano tecniche di gamification, che spaziano dal fitness fino ad attività di marketing per capire i benefici riscontrati. Si vuole inoltre scoprire se ci sono dei validi presupposti per sviluppare App gamificate per smarphone, che sfruttino alcune specifiche tecniche dei dispositivi mobili come, connettività, il GPS ed i sensori come ad esempio, l'accelerometro ed altre tecnologie come il lettore NFC, QR-code. Infine, come caso di studio, saranno testate tre app per smarphone, Foursquare, tramite la quale un utente può consultare e lasciare consigli sui luoghi nelle sue vicinanze, Swarm, tramite la quale un utente oltre ad effettuare il check-in in un luogo, può vedere se ci sono amici nelle vicinanze e Waze, tramite la quale un utente può inviare ed apprendere informazioni relative al traffico.