975 resultados para Portable equipment.


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The trend away from full-time permanent employment raises questions about the relevance of traditional approaches to managing and compensating employees. Employment in the Australian building industry is characterised by short-term, project-based employment. Employers and unions in the industry have adopted alternative compensation models to accommodate the short-term nature of employment, most notably through portable benefit schemes. In 1997, the Victorian building industry extended the range of portable benefits to include sick leave. Empirical evidence suggests a relationship between employee absence behaviour and accrual entitlement models. Research reported here supports this link, and suggests that both employers and employees can benefit from an alternative, portable, approach to accrued entitlements. Employers can benefit because employees may be less likely to take an instrumental approach to their entitlements. Employees benefit because they are able to accrue entitlements for the period they remain in the building industry, irrespective of the extent to which they change jobs.

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Acceptable reliability of normalisation contractions in electromyography (EMG) is paramount for testing conducted over a number of days or if normal laboratory strength testing equipment is unavailable. This study examined the reliability of maximal voluntary isometric contractions (MVIC) and sub-maximal (60%) isometric contractions for use in neck muscle EMG studies. Surface EMG was recorded bilaterally from eight sites around the neck at C4/5 level from five healthy male subjects. Subjects performed MVIC and sub-maximal normalisation contractions using an isokinetic dynamometer (ID) and a portable cable dynamometer with attached strain gauge (PCD) in addition to a MVIC against a manual resistance (MR). Subjects were tested in flexion, extension, left and right lateral bending and were retested by the same tester within a two-week period. Intra class correlation co-efficients (ICC) were calculated for each testing method and contraction direction and a mean ICC was calculated across all contraction directions. All normalisation methods produced excellent within-day reliability (mean ICC >0.80) but only the MVICs using the ID and PCD had acceptable reliability when assessed between-days. This study confirmed the validity of using MVICs elicited using the ID and PCD as reliable reference contractions for the normalisation of neck EMG.

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If it is the case that artists and art explore organization of the brain (Zeki & Lamb, 1994), then the investigation of response to artistic performance holds promise as a window to perceptual and cognitive processes. The portable Audience Response Facility (pARF) is an instrument for recording real‐time audience response (Stevens et al. 2009). Twenty, handheld, Personal Digital Assistants (PDAs) collect responses on customizable skin interfaces. The pARF server transmits the customizable options, synchronizes devices and collects data for export. In this paper we report ratings of the usability of the pARF that were collected after 37 participants had used it to continuously rate engagement along a single dimension while a female dance artist gave two performances of a short solo contemporary dance work. The motion of the dancer was also captured as she performed the piece but only usability rating data are reported here. Ratings indicate that the cognitive load imposed by continuously rating engagement while watching a dance performance was manageable and the pARF was easy to use. An extended familiarization phase may further reduce dual task demand.

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Ageing can lead to the degradation of the tensile properties of natural rubber. The ageing process causes changes in the polymer segmental motion as well as the chemical structure, both of which can be monitored using nuclear magnetic resonance (NMR) spectroscopy. This work demonstrates that NMR can quantify rubber degradation due to ageing, and also that relatively simple NMR equipment can be used. This simpler equipment can be made portable and so could give a simple and fast indication of the condition of rubber in service. The 1H NMR transverse relaxation time, T2, and the 13C NMR spectrum using cross polarization and magic angle spinning (CP MAS) for samples taken at various levels of a degraded natural rubber liner were compared. These experiments showed that, as the level of degradation increased, the 1H NMR transverse relaxation time decreased. The 13C spectra showed considerable peak broadening, indicative of decreased mobility with increased level of degradation as well as the presence of degradation products. Further investigations using lower powered NMR equipment to measure the 1H NMR transverse relaxation times of two different series of natural rubbers were also performed. This work has shown that this simpler method is also sensitive to structural and mechanical property changes in the rubber. This method of monitoring rubber degradation could lead to the non-destructive use of NMR to determine the condition of a part in service.

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Approximately one in five of the Australian population lives with disability (AIHW 2006a; ABS 2003). Of these, almost 1.9 million rely on assistive technologies to live independently (Hobbs, Close, Downing, Reynolds & Walker 2009).

Assistive Technology (AT) is defined as,

‘any device, system or design, whether acquired commercially or off the shelf, modified or customised, that allows an individual to perform a task that they would otherwise be unable to do, or increase the ease and safety with which a task can be performed’ (Independent Living Centres Australia n.d).

‘Assistive Technology solutions’ have been defined as entailing a combination of devices (aids and equipment), environmental modifications (both in the home and outside of it), and personal care (paid and unpaid) (Assistive Technology Collaboration n.d).

Despite a large number of Australians relying on AT, there is little data available about life for these Australians, the extent of AT use, or unmet need for AT. Existing research in Australia suggests that aids and equipment provision in Australia is ‘fragmented’ across a plethora of government and non government programs (AIHW 2006a:35). In Victoria, one of the prime sources of government funding for AT is the Victorian Aids and Equipment Program (VAEP) which is a subsidy program for the purchase of aids and equipment, home and vehicle modifications for people with permanent or long term disability. Recent research suggests that waiting times for accessing equipment through the VAEP are high, as is the cost burden to applicants (Wilson, Wong & Goodridge 2006). In addition, there appears to be a substantial level of unmet need (KPMG 2007).

Additionally, there is a paucity of literature around the economic evaluation of AT interventions and solution packages, resulting in little evidence of their cost-effectiveness credentials.

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This study explored whether an exercise programme for haemodialysis patients, including the use of a purpose built dialysis exercise machine, would improve quality of life (QoL), nutrition, physical function and biochemical indices. QoL, and biochemical indices were measured at 6 months and nutrition was measured at 12 months. Physical function was measured at 4, 8 and 12 months. Results showed improvement in physical function tests a decrease in serum phosphate. The QoL health and physical functioning domain improved also. Conclusions The development of a structured exercise programme can improve quality of life, physical functioning, PO4 levels and urea clearances of dialysis patients.