Separating the contributions of hearing, lexical knowledge and speech production to speech perception scores in children with hearing impairments.

Open-set word and sentence speech-perception test scores are commonly used as a measure of hearing abilities in children and adults using cochlear implants and/or hearing aids. These tests are usually presented auditorily with a verbal response. In the case of children, scores are typically lower and more variable than for adults with hearing impairments using similar devices. It is difficult to interpret children's speech-perception scores without considering the effects of lexical knowledge and speech-production abilities on their responses. This study postulated a simple mathematical model to describe the effects of hearing, lexical knowledge, and speech production on the perception test scores for monosyllabic words by children with impaired hearing. Thirty-three primary-school children with impaired hearing, fitted with hearing aids and/or cochlear implants, were evaluated using speech-perception, reading-aloud, speech-production, and language measures. These various measures were incorporated in the mathematical model, which revealed that performance in an open-set word-perception test in the auditory-alone mode is strongly dependent on residual hearing levels, lexical knowledge, and speech-production abilities. Further applications of the model provided an estimate of the effect of each component on the overall speech-perception score for each child.

The aesthetic image : affect and the production of knowledge in practice-led research

This paper addresses the question of how we might provide practitioners with a framework for understanding how affect and aesthetic processes generate images that are implicated in the production of new knowledge in creative arts research. Drawing on the thought of Julia Kristeva, it examines the aesthetic underpinnings of discovery and the significance of this for research training and the development of more effective pedagogies both within and beyond the university.

Part-time research students: are they producing knowledge where it counts?

Over the past twenty years, in Australia and overseas, there has been a steady growth in the numbers of part-time research students. It is possible to view this as substantially a product of "creeping credentialism" following from the previous growth in part-time coursework Masters degrees. However, research degrees are a different kind of credential and program to coursework degrees. They are not only about research training-- in the sense of teaching people how to conceptualise, plan, undertake, analyse and communicate research--but they are also "tested" by the candidate's production of some new and significant knowledge (especially in doctorates). Therefore, unlike coursework degrees, some new public "good" is created and added to the "stock of knowledge". Common criticisms of the "traditional" PhD research degree, in Australia and overseas, are that it is (now) too narrow and specialised for either the graduate or their research findings to be of utility beyond their specialism, the graduates are limited in their communication and workplace skills, and their employment opportunities are relatively weak, especially given the high costs of their research degrees. However, the rise of part-time candidature and of professional doctorates--commonly involving research in workplaces or professions-- suggests that, if this criticism is valid, it would be unlikely to be valid for part-time PhDs and professional doctorates. This article analyses these criticisms in relation to the ways in which part-time research students are positioned within the knowledge economy. It makes an argument for a greater understanding and analysis of the impact and benefits of part-time doctoral students to the knowledge economy and the public good.

Thinking/acting locally/globally: western science and environmental education in a global knowledge economy

This paper critically appraises a number of approaches to 'thinking globally' in environmental education, with particular reference to popular assumptions about the universal applicability of Western science. Although the transnational character of many environmental issues demands that we 'think globally', I argue that the contribution of Western science to understanding and resolving environmental problems might be enhanced by seeing it as one among many local knowledge traditions. The production of a 'global knowledge economy' in/for environmental education can then be understood as creating transnational 'spaces' in which local knowledge traditions can be performed together, rather than as creating a 'common market' in which representations of local knowledge must be translated into (or exchanged for) the terms of a universal discourse.

Productivity and the knowledge worker

The industrial age of Taylor and Ford transformed the landscape of office buildings. Office spaces were very uniform and highly supervised. People were units of production. Their work activities were routine. Work study, or "time and motion" studies measured outputs.

The current "information age" way of working, combined with major demographic shifts in the workforce (Gen-Xers, career-shifting Baby Boomers and a greater number of women and minority ethnic groups in the workforce), requires major changes in how to support service industry productivity. The motivations of knowledge workers are very different from those of the industrial age worker. Commitment to the organisation has gone as a result of business re-engineering processes that increased productivity but at the expense of job security. Workers are more likely to be "goal-focussed" rather than "prevention focussed" (Meyer et al 2004 2 ) meaning that instead of doing only what is necessary to retain their job, workers actively seek more meaningful work that matches their personal value systems. They even want to have fun at work!

What contribution can the workplace make to support this work and increase productivity? Surveys have indicated that workers spend more than 75% of their time in their own office space with more than half of that time spent in concentrated work. Concentrated work requires quiet with few distractions, yet workers report that distractions are probably the biggest problem hampering their productivity. What are the current workplace solutions to office space usage? Probably the worst option for distractions is frequently used – open-plan offices, which are a more cost-effective use of space, but at the potential expense of productivity. Visioning architects such as Duffy (1999)3 advocate quiet spaces ("dens") where workers can decamp to carry out their concentrated work. But is this workspace as efficient for the worker – who may have to transport materials back and forth?

Workers know what they need to support their productivity best. On the rare occasions when the staff have been given the opportunity to configure their work-settings, high productivity increases result. Besides noise, environmental quality is perceived as a key factor influencing productivity. Stuffy workplaces generate lethargy. Greater worker satisfaction with their workplace is reported when they have more individual control over the environment.

We need to seriously question the "one-size-fits-all" office building with cellular layouts. Workers need to be involved in the design and fit-out. They need personal control over their environment and an organisation that can support their individual aspirations and values. A number of interventions that could generate significant improvements in knowledge work productivity are proposed.

Categorisation of knowledge management processes in the development of sustainable enterprises

Sustainable development is a growing area of interest in organisations. Particularly those that have large energy demands for processing, use dwindling raw materials or produce a great deal of waste through production. Knowing those processes that can contribute to making an organisation more sustainable provides a great advantage both in terms of project implementation success and in measurable Triple Bottom Line returns.

In previous research we identified that many of the Information Technology processes used to assist organisations in developing sustainable practices were more clearly suited as Knowledge Management processes (Van Der Meer and Sinnappan, 2008), however less empirical study has been done to categorise them meaningfully.

In this study we have taken these Knowledge Management processes and categorised them according to the sustainable development practice where we identify they can be of service based on Waage et al (2003). Through this we are hoping to develop a framework for organisations to determine what Knowledge Management processes are needed to achieve the particular sustainable development. We may also be able to judge what steps an organisation needs to take to develop further sustainable practices in other areas.

Development of a framework for knowledge management tools in sustainable development would assist industries in determining the best processes for these sustainable projects. This framework also contributes to the body of knowledge on sustainable development and Information Technology.

The availability of information in knowledge-based economies

The use of information is preceded by its availability. For post-industrial economies to exploit information to full potential it is important for knowledge to be free of vested-interest censorship and manipulation. History suggests that a range of vested-interests have manipulated explicit> information availability through various forms of sectarian, state and business manipulation of the systems of information storage and transfer. The OECD 1996 report "The Knowledge-Based Economy" recognized that the diffusion of knowledge was as significant as its creation, and that knowledge distribution networks were crucial to innovation, production processes and product development. The success of enterprises and national economies is considered reliant on the effectiveness of their ability to gather, distribute and utilize knowledge. The increasing need for ready access (of information that might become knowledge) in accordance with the OEDC definition is particularly relevant to this paper as it assumes infrastructures capable of providing that need. Wherever there are infrastructures there are opportunities to benefit from them, either for profit or power. This paper considers the implications of sectarian, state and business-model control over the selective content, storage and dissemination of information and knowledge, both from historical and current perspectives. The advent of new technologies and how they have enabled the flow of information adds new dimensions to knowledge control but the quality of knowledge is less certain and who controls or influences distribution of knowledge less transparent. It could be argued that at each step in the development of knowledge distribution networks, knowledge and its distribution, is not free of the possibility of third-party vested interest.

Integrating farm production and natural resource management in Tasmania, Australia

This paper reports on the social learning from a project aimed to increase the knowledge and capacity of a group of farmers in Tasmania, Australia, to reduce the impacts of intensive agriculture on soil health and waterways, and to optimise the efficient use of on-farm inputs. The plan-do-check-review cycle adopted in this project required the farmers to assess current management practices, identify where to make changes, implement changes and monitor for improvements. The success of the project was due to careful attention to social processes as well as technical input. The combination of group activities with individual mentoring and one-to-one advice was key to the success of this project in enabling farmers to undertake on-farm action.

There is value in social learning that included developing relationships, using one-to-one contact and group workshops together with expert input when working with farmers to tackle some difficult and complex interrelated natural resource management and production issues. Sufficient time must be allowed for the process of facilitating good practice in natural resource management, particularly when addressing systemic environmental impacts. Practical operational recommendations are presented on communication, feedback, focus of activities and meeting content, as these will be useful to other project officers and facilitators working with farmer groups.

Environmental art and the production of publics : responding to environmental change

Environmental crises around the world have inspired an outpour of creative response. As the effects of climate change increasingly manifest, environmental! art is being politically and pedagogically mobilised for ameliorative strategies. The rubric that instrumentalist, techno-scientific approaches to environmental stress (and attendant social distress) cannot solely provide solutions to this challenge has found increasing acceptance. The concern of this paper, however, is the limited understanding of public art's capacity that is perpetuated bv certain trends in environmental art in which the work is charged with communicative responsibility,. Connected to the representational and instructive traditions of public art, this tendency is further informed by the influence of the 'information-deficit model' in environmental conmunication research: a concept that asserts a straightforward connection between information provision, indiyidual awareness and collective action on a concern. The idea that public art can function as a conduit for knowledge,.which in turn will inspire new moral positions and behaviours, absents the art work from the process of knowledge-making and the production of conditons that enable new practice. Arguing for a revised approach to the environmental possibilities of public art, this paper will propose that in thinking aboutl environmental transformation as essentially unrepresentable, a dfferent mode of public engagement with the issue is enabled.

Production system model of children's development of number concepts

The purpose of the present research study was to produce a global, cumulative model of number concept development for children between the ages of two and eight years old. The theoretical and methodological orientation of this study was greatly influenced by Richard Young's production system analysis of seriation by young children (Young, 1971, 1976) and by Newell's (1973) seminal paper, ‘You can't play twenty questions with nature and win’. The methodology used in this investigation thus was as follows. A series of complex number tasks encompassing many aspects of the concept of number were developed. Five children aged between three and seven years then were videotaped while performing some of these complex number tasks. From a detailed protocol analysis of the video-recordings, computer simulation models written in the production system language PSS3 (Ohlsson, 1979) were produced. Specific production system models were produced for each of following aspects of the children's number knowledge: (i) sharing of discrete quantities; (ii) comparison of shares; and (iii) conservation/addition/subtraction of number. These domain-specific models were based on the converging experimental evidence obtained from each of the children’s responses to variants of the complex number tasks. Each child thus received a different set of problems which were chosen systematically in order to clarify particular features of the child's abilities. After a production system model for each child had been produced within a domain, these models were compared and contrasted. From this analysis, developmental trends within the domain were identified and discussed. The research and educational implications of these developmental trends then were discussed. In the concluding parts of this study, the children's domain-specific production system models were cumulated into global, comprehensive models which accurately represented their behaviour in a variety of number tasks. These comprehensive models were compared and contrasted and general developmental trends in young children's number knowledge were identified and discussed.

(Re)producing power-knowledge-desire : young women and discourses of identity

This study focuses on three young women in their final year of school using data gathered during a year-long process of individual conversational interviews, the contents of which were largely determined by their interests. Three themes arise from critical incidents during this year - the debutante ball, teenage pregnancy and dieting. These themes are used to focus wide ranging explorations of what it is to be a young woman at this particular time. The broader cultural production of discursive positions available to, and developed by, these young women as part of their identity formation is discussed. Methodological issues concerning power relationships between research participants are also the focus of critical attention. It is considered that young women's bodies and bodily practices are central to understanding the processes involved in their identity formation. It is in this context that the focus turns to bodies that matter. In contemporary Western cultures 'adolescent bodies' could be said to matter 'too much' in the sense that they are increasingly the focus for disciplinary practices in institutions such as schooling, the church, the family, health care, health promotion and the media. This disciplining is legitimised because adolescence is socially constructed as a 'becoming'. In this case it is a matter of 'becoming woman'; a sort of apprenticeship which allows for knowledgeable others to provide not only guidance and nurturance, but discipline. Using insights gained from feminist poststructuralist theory and cultural feminism this thesis argues that the discourses and practices generated within and across institutions, which are normalised by their institutional base, are gender differentiated. The focus is on young women's embodied subjectivity and how the discourses and practices they engage with and in work to construct an ideal feminine body-subject. The discursive production of a gendered identity has a considerable impact on young women's health and their health-related behaviours. This is explored specifically in the thesis in relation to sexuality and the cultural production of the 'ideal' female body. It is argued that health education and health promotion strategies which are designed to influence young women's health related behaviours, need to consider the forms of power, knowledge and desire produced through young women's active engagement with institutionalised discourses of identity if they are to have an ongoing impact

The effects of speech production and vocabulary training on different components of spoken language performance

A group of 21 hard-of-hearing and deaf children attending primary school were trained by their teachers on the production of selected consonants and on the meanings of selected words. Speech production, vocabulary knowledge, reading aloud, and speech perception measures were obtained before and after each type of training. The speech production training produced a small but significant improvement in the percentage of consonants correctly produced in words. The vocabulary training improved knowledge of word meanings substantially. Performance on speech perception and reading aloud were significantly improved by both types of training. These results were in accord with the predictions of a mathematical model put forward to describe the relationships between speech perception, speech production, and language measures in children (Paatsch, Blamey, Sarant, Martin, & Bow, 2004). These training data demonstrate that the relationships between the measures are causal. In other words, improvements in speech production and vocabulary performance produced by training will carry over into predictable improvements in speech perception and reading scores. Furthermore, the model will help educators identify the most effective methods of improving receptive and expressive spoken language for individual children who are deaf or hard of hearing.