946 resultados para Radiological and Ultrasound Technology


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While declarations of ‘innovativeness’ are easily found in most educational contexts, it is significantly more difficult to locate detailed definitions of what educational innovation actually means. In this paper we are interested in identifying the extent to which mainstream takes on ‘innovation’ (as played out in contemporary technology and equity debates) reflect or respond to what we will define as the more innovative dimensions of innovation literature itself. Our aim throughout this paper, then, is to begin the complex process of developing a means for distinguishing between projects that are ‘badged’ as innovative and projects that are more demonstrably (and sustainably) innovative. In this process we will distinguish between what Shiv Visvanathn describes as “innovation chains”— dynamic, rhizomatic, transformative responses to the contemporary world that lead to fundamentally new ways of conceptualising technology, culture and difference—and the constraints—or chains—provided by dominant understandings of innovation: chains which anchor us to existing, hegemonic and limiting understandings of student
diversity and educational technology.

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Literature to date suggests contrary indicators of acceptance of the use of technology to support learning by females. With the increasing adoption of information technology to support teaching and learning, it is imperative that factors which may impede student learning are identified. The research reported here is of a large-scale survey of the perceptions of university students about eLearning and their use of the online learning environment. The aim of the survey was to gather data to inform about online learning practices at the University. The results were explored, amongst other factors, by gender. Findings include no significant differences between the female and male students with respect to being able to use the online learning environment confidently and effectively. In general the female students were more willing to participate in online discussions. However, there was no difference between the female and male students regarding their willingness to voice their opinions online. An unexpected result was the greater value placed by female students on using the online environment for communicating and collaborating with students of diverse background.

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In wireless mobile computing, location management is introduced whenever users move from one place to another. In order to track a mobile user, the system must store information about their current location and report new locations to a home base station. Numerous techniques have been proposed to optimally manage the location of mobile hosts in mobile networks. This paper attempts to present a more structured and comprehensive analysis of the current location management techniques architectures and their technology enablers. We discuss some of the principal issues involved in location management and present a taxonomy and survey of location management strategies that have been proposed in the literature over the years for mobile computing systems.

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A case–control study nested in the Health Watch cohort of petroleum industry workers, investigated whether the excess of lymphohematopoetic cancers, identified among male members of the Health Watch cohort, was associated with benzene exposure. Cases of non-Hodgkin’s lymphoma (n=31),multiple myeloma (n=15), and leukemia (n=33)were identified between 1981 and 1999. Cases were age-matched to five controls. Exposure was retrospectively estimated for each occupational history using an algorithm in a relational database. Benzene exposure measurements, supplied by Australian petroleum companies, were used to estimate exposure for specific tasks. The tasks carried out within the job, the products handled, and the technology used,were identified from interviews with contemporary colleagues. More than half of the subjects started work after 1965 and had an average exposure period of 20 years. Exposure was low, 85% of the cumulative exposure estimates were<10 ppm years. Matched analyses showed that non-Hodgkin’s lymphoma and multiple myeloma were not associated with benzene exposure. Leukemia risk, however, was significantly increased for the subjects with greater than 16 ppm years cumulative exposure, odds ratio (OR) 51.9 (5.6–477) or with greater than 0.8 ppm intensity of highest exposed job. Cumulative exposures were similar to those found in comparable studies.The inclusion of occasional high exposures, for example, as a result of spillages, reduced the ORs, when the exposure was treated as either a continuous or a categorical variable. Our data demonstrate a strong association between leukemia and modest benzene exposure. The choice of cut-point and reference group has a marked effect on the ORs, but does not change the overall conclusions.

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This Report summarises the outcomes of the phases of the Professional
Development for the Future Project and presents the implications of this research for professional development of staff in Vocational Education and Training (VET), as they become knowledge workers.

These shifts are occurring within the knowledge era. Distinguishing features of this era are summarised into four broad areas:
- the importance and value placed on knowledge in organisations
- the time span of discretion
- the complexity of relationships, and
- the ubiquitous nature of information and communication technology.

It is within this context that work is currently performed, and understanding this context provides the foundation for considering new capabilities required in the knowledge era.
Key capabilities required of knowledge workers to work effectively in the
knowledge era were drawn together from an analysis of the theoretical literature and the results of interviews with knowledge workers. The core capabilities identified include:
- adaptive problem solving – becoming designers as well as problem -
solvers
- rapid knowledge gathering and sharing with others
- discriminating between relevant and irrelevant information, and
- understanding and working effectively with the organisation’s culture.

Knowledge era characteristics and knowledge worker capabilities have been mapped to each other illustrating conceptual linkages between these two areas.

Professional development themes drawn from interviews with knowledge
workers are presented. While global trends in knowledge work have been well documented, the impact of these trends on the capabilities of workers, and the ways in which knowledge workers develop these capabilities is less well understood. Their learning methods challenge our current thinking in relation to the ways in which workers acquire skills and knowledge. Some of the professional development methods include seeking exposure to new ideas from a wide variety of sources, embracing intense learning opportunities, and using relationships to increase knowledge.

‘Thought pieces’ (see p17 ff) commissioned for this Project, as well as
subsequent interviews with the authors, provided further insights into the
professional development of knowledge workers. The implications of these insights are an extension of earlier themes and emphasise:
- the emergent nature of knowledge work
- the importance of relationships that facilitate knowledge sharing
- coherent conversations and dialogue
- collaborative work and generosity.

A key insight is the shift from thinking about knowledge work in terms of
borrowed knowledge to an emphasis on generated knowledge within a context.

Data from focus groups of the Project provide further insights for knowledge worker professional development. These augment the perspectives of the earlier data analysis but also add greater emphasis to:
- the clear and direct relationship between professional development and
work and career aspirations of knowledge workers,
- the relationship of professional development to the organisational
mission, and
- the issues of managing and leading knowledge workers and their
development.

As part of this analysis the defining features of organisational life in VET were reviewed in relation to effective professional development of knowledge workers.

The final section of the Report revisits the core dimensions of the Project.
Concise commentaries on working and learning in the knowledge era,
professional development in the knowledge era, and leadership and
management in the knowledge era are presented.

The Report concludes with a discussion of the enablers of professional
development for knowledge workers in VET. This discussion is introduced by a re-statement of the VET sector’s positioning in the knowledge era and the consequences of this for VET managers an d staff in terms of complexity, uncertainty and diminished prospects for accurate predictiveness. The enablers comprised:
- integration of information technology into socio -technical systems
- greater understanding of the organisation from within
- connecting staff to the organisation’s fundamental identity
- connecting to the work and career trajectories of workers
- establishing work structures which integrate the use of professional
development resources with knowledge work
- providing workers with the autonomy to design their own professional
development activities
- building professional development into the iterative nature of knowledge
work, and
- creating organisational contexts that value intuitive thinking and working.

Professional development needs to be thou ght of in a much broader context in the knowledge era. What each VET staff member knows and shares will become increasingly central to their work, and in that sense all VET workers require capabilities for knowledge work. This report accurately describes t he VET context, the capabilities required, and the organisational enablers that will promote ‘knowing’ and thus embed a new style of professional development within VET.

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Years after the introduction of computing in Australian schools, computer classrooms are still heavily dominated by male students studying subjects which have little appeal to female students, explains the author. This article looks at why girls are less likely to choose computing as a subject to study or to consider computing for a future career.

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Over the past decade, advances in the Internet and media technology have literally brought people closer than ever before. It is interesting to note that traditional sociological definitions of a community have been outmoded, for community has extended far beyond the geographical boundaries that were held by traditional definitions (Wellman & Gulia, 1999). Virtual or online community was defined in such a context to describe various forms of computer-mediated communication (CMC). Although virtual communities do not necessarily arise from the Internet, the overwhelming popularity of the Internet is one of the main reasons that virtual communities receive so much attention (Rheingold, 1999). The beginning of virtual communities is attributed to scientists who exchanged information and cooperatively conduct research during the 1970s. There are four needs of participants in a virtual community: member interest, social interaction, imagination, and transaction (Hagel & Armstrong, 1997). The first two focus more on the information exchange and knowledge discovery; the imagination is for entertainment; and the transaction is for commerce strategy. In this article, we investigate the function of information exchange and knowledge discovery in virtual communities. There are two important inherent properties embedded in virtual communities (Wellman, 2001):

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This article outlines some new-object commands of Logo Microworlds and includes the use of buttons, sliders and programmable colours. The ability to assign object properties including font, colour and frames are discussed. As is assigning object-instructions and commands such as click on and clickoff, launch and cancel. Programming the turtle, making a new turtle, running simultaneous turtles, programming graphic colours and sliders as well as understanding dotimes are explored.

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The author undertook a major national study of e-business for the Australian National Training Authority (ANTA) from November 1999 - February 2000, resulting in the report E-competent Australia: The Impact of E-commerce on the National Training Framework (ANTA, 2000; available at http;://www.anta.gov.au). This ANTA study and other research by the author show that e-business will eventually have a significant impact on the Australian economy, on industries, organisations, occupations and education and training organisations. From April-May 2000, the author is undertaking a major study for the Commonwealth Government (DETYA): a scoping study of e-commerce in the education and training sector (higher education, VET, schools) of Australia.

This paper starts where the ANTA study (Mitchell 2000a) and the DETYA study stop, by exploring the implications of e-business for online learning systems. E-business will eventually impact not only on the organisations providing online education but on their online learning systems.

The paper is based also on research by the author for a Doctorate in Education within the Faculty of Education at Deakin University that commenced in 1997 and is continuing. The research for this paper involved a review of national and international developments in ebusiness, relating them to online learning systems.

This paper traces the origins, definitions and drivers of both e-business and online learning systems in the 1990s, showing how e-business principles and strategies in the future will have a beneficial impact on online learning systems, even if online learning systems eventually lose their identities as separate from the rest of the organisation.

An e-business focus for online learning systems would start with an understanding of the customers' needs; would find a customer-centric solution, not a technology-centric solution; would empower the customer; would provide sufficient and multiple types of support for the customer; would provide quality and skilled input; and would provide cost effective, reliable and accessible technology.

This vision of an e-business approach to training varies greatly from the traditional business model for the delivery of training, particularly by VET Registered Training Organisations (RTOs). The traditional business model includes real estate prices dictating location of campuses; architecture dictating class sizes; industrial relations dictating the number and length of sessions and prescribing tight role descriptions; queues of students enrolling in February and July each year; and students seated in teacher-dominated classrooms. In contrast, an e-business basis for RTOs would involve the use of electronic communication to improve business performance, improve the use of existing resources, enhance existing services and increase market reach.

An e-business model for RTOs would include the following features: the development of new relationships with customers, using electronic communication to strengthen the relationship; the pursuit of new student markets; and the development of new relationships and alliances between providers. In this new arena of potential and threat, of disintermediation and reintermediation, there will be new roles for new intermediaries; and there will emerge new ways of supporting teaching and learning. Progressive education and training organisations will realize the potential offered by e-business and enjoy the fruits of reintermediation.

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The relationship between emerging trends in healthcare systems and the consequent research priorities will be explored.

Governments and policy makers in developed countries are increasingly focused on the management of chronic disease, reflecting demographic changes and shifts in the burden of disease. Systems of quality improvement and reward are increasingly based on performance in chronic disease management. There is some evidence that countries with well-developed systems of primary care, such as Australia, achieve better health outcomes at less cost. In the past 15 years, almost all developed countries have undergone some type of health care reform. There has been a major focus on reducing costs; often involving shifting services from secondary to primary care. While there are few international comparisons, most suggest a complex relationship between the strength of primary care within the overall health services system and good performance, particularly with regard to lower costs of care and particularly relevant measures of health.

Aims for 21st century health systems
What, then, are the issues which are shaping contemporary general practice in developed countries? There are several imperatives: Safety, effectiveness, patient-centredness, timeliness, efficiency and equity. A study by the Nuffield Trust (Dargie, 1999) projected the shape of healthcare for the first fifteen years of this century. The study identified six issues that need to be addressed in the process of formulating health systems policies:

• Peoples’ expectations and financial sustainability
• Demography and ageing
• Information and knowledge management
• Scientific advance and new technology
• Workforce education and training
• Systems performance and quality (efficiency, effectiveness, economy
and equity)

Each of these six issues requires innovative thinking and priority setting on the part of the health sector, such as the delivery of health services in new and creative ways. Furthermore, there is a clear need for a finely tuned research, development and evaluation strategies to match these goals.

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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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Casual academics play a major role in higher education in Australia today. In their roles as tutors, demonstrators and markers, casual academics need access to opportunities to develop as teachers. As such, Deakin University has developed an online academic development program designed to better equip new and inexperienced casual academics for their roles. This paper reports on the approach that has been taken to designing one module of an online academic development program for casual academics, considering the influence of information and communication technology (ICT) on this design, and discusses an analysis of the feedback on the module by the participants who completed it. A conclusion is drawn that aligning self paced online learning with induction into a community of practice via ICT presents particular challenges.

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This paper is about a project that uses Information and communication technologies in a virtual environment where students can communicate in their own language in text and audio.

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The 1996 Johnson stakeholder review of Australian engineering education recommended the development of a number of broadly defined attributes in all engineering graduates. The Institution of Engineers, Australia (now Engineers Australia) responded swiftly by switching the focus of its engineering course accreditation requirements from course content to graduate attribute outcomes. To maximise the effectiveness of this approach to the mechanical engineering discipline a clear understanding of the relative significance of a more detailed range of attributes to Australian industry is essential, yet the scope of the mechanical engineering profession is broad and views of individual practitioners contributing to debate on attribute requirements are largely influenced by their own often unique professional formation. The research presented in this thesis is unique in using a role based analysis of the relative significance of an extensive range of attributes considered relevant to Australian mechanical engineers. The study covers the six industries found to employ the greatest number of Australian mechanical engineers. The significance of these attributes in the core mechanical engineering roles of each industry are weighted according to the numbers of mechanical engineers employed in those roles. These attribute significance profiles are considered in the context of a study of the formative development of the profession under the extensive influence of 19th and 20th century UK and US practices and recent momentous changes in engineering employment and formation. A wide range of appropriate teaching strategies to develop the most significant attributes through proximal and distance learning are explored and a brief account of the candidate’s work in developing and assessing the use of technology to enhance flexible learning in the field of engineering education is also included in this thesis. Whilst major areas of the mechanical engineers knowledge base are considered as part of the main study, further case study based research is presented to assess in more detail the knowledge base requirements for Australia’s best performing manufacturing industry by ‘industry value added’ - Food, Beverage and Pharmaceuticals and as such provides an indication of the relevance of the content base of Australian mechanical (as well as chemical and electrical) engineering degree programs to an Australian industry sector.

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This research project examined the diffusion of change within one Victorian TAFE Institute by engaging action research to facilitate implementation of e-mail technology. The theoretical framework involving the concepts of technology innovation and action research was enhanced with the aid of Rogers's (1983) model of the diffusion of the innovation process. Political and cultural factors made up the initiation phase of innovation, enabling the research to concentrate on the implementation phase of e-mail Roger's (1983) model also provided adopter categories that related to the findings of a Computer Attitude Survey that was conducted at The School of Mines and Industries Ballarat (SMB), now the University of Ballarat—TAFE Division since amalgamation on 1st January 1998. Despite management rhetoric about the need to utilise e-mail, Institute teaching staff lacked individual computers in their work areas and most were waiting to become connected to the Internet as late as 1997. According to the action research reports, many staff were resistant to the new e-mail facilities despite having access to personal computers whose numbers doubled annually. The action research project became focussed when action researchers realised that e-mail workshop training was ineffective and that staff required improved access. Improvement to processes within education through collaborative action research had earlier been achieved (McTaggart 1994), and this project actively engaged practitioners to facilitate decentralised e-mail training in the workplace through the action research spiral of planning, acting, observing and reflecting, before replanning. The action researchers * task was to find ways to improve the diffusion of e-mail throughout the Institute and to develop theoretical constructs. My research task was to determine whether action research could successfully facilitate e-mail throughout the Institute. A rich literature existed about technology use in education, technology teaching, gender issues, less about computerphobia, and none about 'e-mailphobia \ It seemed appropriate to pursue the issue of e-mailphobia since it was marginalised, or ignored in the literature. The major political and cultural influences on the technologising of SMB and e-mail introduction were complex, making it impossible to ascertain the relative degrees of influence held by Federal and State Governments, SMB's leadership or the local community, Nonetheless, with the implementation of e-mail, traditional ways were challenged as SMB's culture changed. E-mail training was identified as a staff professional development activity that had been largely unsuccessful. Action research is critical collaborative inquiry by reflective practitioners who are accountable for making the results of their inquiry public and who are self-evaluating of their practice while engaging participative problem-solving and continuing professional development (Zuber-Skerritt 1992, 1993). Action research was the methodology employed in researching e-mail implementation into SMB because it involved collaborative inquiry with colleagues as reflective practitioners. Thoughtful questions could best be explored using deconstructivist philosophy, in asking about the noise of silence, which issues were not addressed, what were the contradictions and who was being marginalised with e-mail usage within SMB. Reviewing literature on action research was complicated by its broad definition and by the variability of research (King & Lonnquist 1992), and yet action research as a research methodology was well represented in educational research literature, and provided a systematic and recognisable way for practitioners to conduct their research. On the basis of this study, it could be stated that action research facilitated the diffusion of e-mail technology into one TAFE Institute, despite the process being disappointingly slow. While the process in establishing the action research group was problematic, action researchers showed that a window of opportunity existed for decentralised diffusion of e-mail training,in preference to bureaucratically motivated 'workshops. Eight major findings, grouped under two broad headings were identified: the process of diffusion (planning, nature of the process, culture, politics) and outcomes of diffusion (categorising, e-mailphobia, the survey device and technology in education). The findings indicated that staff had little experience with e-mail and appeared not to recognise its benefits. While 54.1% did not agree that electronic means could be the preferred way to receive Institute memost some 13.7% admitted to problems with using the voice answering service on telephones. Some 43.3% thought e-mail would not improve their connectedness (how they related) to the Institute. A small percentage of staff had trouble with telephone voice-mail and a number of these were anxious computer users. Individualised tuition and peer support proved helpful to individual staff whom action researchers believed to be 'at risk', as determined from the results of a Computer Attitude Survey. An instructional strategy that fostered the development of self-regulation and peer support was valuable, but there was no measure of the effects of this action research program, other than in qualitative terms. Nevertheless, action research gave space to reflect on the nature of the underlying processes in adopting e-mail. Challenges faced by TAFE action researchers are integrally affected by the values within TAFE, which change constantly and have recently been extensive enough to be considered as a 'new paradigm'. The influence of competition policy, the training reform agenda and technologisation of training have challenged traditional TAFE values. Action research reported that many staff had little immediate professional reason to use e-mail Theoretical answers were submerged beneath practical professional concerns, which related back to how much time teachers had and whether they could benefit from e-mail. A need for the development of principles for the sound educational uses of e-mail increases with the internationalisation of education and an increasing awareness of cultural differences. The implications for conducting action research in TAFE are addressed under the two broad issues of power and pedagogy. Issues of power included gaining access, management's inability to overcome staff resistance to technology, changing TAFE values and using technology for conducting action research. Pedagogical issues included the recognition of educational above technological issues and training staff in action research. Finally, seventeen steps are suggested to overcome power and pedagogical impediments to the conduct of action research within TAFE. This action research project has provided greater insight into the difficulties of successfully introducing one culture-specific technology into one TAFE Institute. TAFE Institutes need to encourage more action research into their operations, and it is only then that -we can expect to answer the unanswered questions raised in this research project.