Seasonal performance rating of heat pump water heaters

Seasonal performance evaluation methods for water heaters are reviewed and an experimental method for rating air-source heat pump water heaters is presented. The rating method is based on measured heat pump performance during heat-up operation of particular products rather than a generic simulation model of heat pump performance. The measured performance is used in a correlation model of the heat pump unit in an annual load-cycle system performance simulation based on the TRNSYS simulation package.

Employees' perceptions of fit and misfit

What makes some people feel that they fit in at work whilst others feel they misfit? This brief paper outlines a study which is currently in progress to explore individuals’ perceptions of fit and misfit at work. In the person-organisation and person-environment fit literature, fit and misfit tend to be shown as two ends of a spectrum, with an underlying assumption being that the two states are polar opposites. Whilst this seems intuitively logical, there has been no empirical test of this core assumption in the literature. This paper outlines a qualitative study, using causal mapping, to identify the factors affecting employees’ fit and misfit perceptions at work. It is anticipated that by the time of the BAM conference, the data analysis will be complete and full findings will be available.

Using competencies in human resource management : case studies in Australian companies

This study investigated the use of competencies for human resource management in seven Australian companies. Despite advocacy for the use of competencies by Government Committees and Task Forces (For example Carmichael (1992), Mayer, (1992) and Karpin, 1995), and the existence of competency standards for eighty per cent of the Australian workforce, the competency approach has not been widely adopted. A review of the literature indicated that the term competency had several meanings with different implications for its use depending on the meaning. The study looked at how individuals have defined the term and applied the approach to human resource management practices. Interviews were conducted with Human Resource and Training managers, and operative staff in companies using competencies. How they defined the term, described the rationale for using competencies, and applied competencies to selection, training, performance appraisal and remuneration were determined. Case studies were written for each company to describe their particular application of competencies. Competencies were found to be defined in several ways by those interviewed. Some advantages of using competencies in human resource management applications were found. The amount of work involved in introducing the competency approach was described as a reason why competencies have not been more widely adopted.

A framework for assessing certification schemes for IT security professionals

This research develops a framework which allows the many IT security certifications to be compared by stakeholders, such as IT security professionals, employers, universities and governments. The framework employs a novel approach which allow users to tailor the comparison based on their own weightings, whilst taking advantage of standardised research.

International comparison of sustainable rating tools

This paper undertakes an international comparison of global sustainability tools and examines their characteristics and differences. Most importantly, it focuses on which tools from different countries can be directly compared with each other (i.e., is a five-star building with one rating system directly comparable with a four-star rating of another rating system?). The results are designed to provide some clarification of the assessment tools for sustainable buildings, which in turn will assist investors, developers, tenants, and government bodies in making
informed decisions about green buildings. In addition, it is envisaged that removing some of the uncertainty associated with sustainable buildings will increase transparency for stakeholders and facilitate their acceptance.

The value of work in younger and older adults' lives: an Australian perspective

In the present study we examined the perceived role of work in the lives of younger and older adults in three different occupations: teaching, nursing, and small business. On the basis of lifespan developmental theory of changes in work-related values across the lifespan we expected that (1) older adults would rate their job satisfaction and organisational commitment more highly than younger adults, and (2) younger adults would rate the importance of work more highly than older workers. Based on utility theory we expected that nurses and teachers would view early retirement more positively than small business employees because of early retirement incentives in these two careers. One-hundred-sixty-two participants completed a 118-item survey. Overall few age differences were found between older and younger workers. On average, all participants rated work as moderately important and their job satisfaction as moderately high. Nonetheless, older participants rated their job satisfaction higher than younger participants. On average, all groups believed they would retire before 65 years of age. The latter finding is important for workability theory and raises issues about how to change attitudes, perceptions and values about working past traditional retirement ages.

Exempt treatment of financial intermediation services under a value-added tax: an assessment of alternatives

Most countries with a value-added tax (VAT) exempt financial intermediation services from the tax. While exemption is generally perceived to be undesirable, it is also widely regarded as unavoidable because of technical difficulties in applying VAT to these services. This article reviews the standard rationale for exempt treatment and then considers the relative merits of two recent challenges raised in the tax literature. The first challenge involves the application of cash flow taxation to financial intermediation services in a manner that is consistent with an invoice/credit VAT (which is the dominant form). The second challenge proposes a comprehensive system of zero-rating of financial intermediation services, which is supported by a characterization of the household consumption of such services as non-taxable. The author argues that each of these alternatives to an exemption system suffers from both theoretical and practical implementation difficulties that make maintenance of exempt treatment the preferred approach, at least in the short term. There is, however, a simpler alternative to these fundamental reform options, involving modification of just one aspect of an exemption system to relieve some of its more problematic aspects. Many of the interpretative problems and associated inefficiencies that plague an exemption system arise from the need to distinguish between taxable and exempt financial services. The author argues that these difficulties can be eliminated, to a large extent, by basing the distinction on the form of prices. In support of this approach, he points out that it is consistent with the underlying reasons for the application of exempt treatment. The author considers a number of other possible modifications, but these are either rejected outright or viewed with a healthy skepticism. For example, the author is critical of the apparent rationale for the application of cash flow taxation to property and casualty insurers. He also rejects proposals that accept some looseness in the formulaic allocation by financial intermediaries of the costs of business inputs between exempt and taxable services for input credit purposes. In his view, an explicit reliance on pricing structures to draw the boundary between exempt and taxable services is preferable to the provision of relief for blocked input tax credits of financial intermediaries. Finally, the author is skeptical of the case for a policy response intended to address the tax bias under an exemption system for financial intermediaries to insource supplies.

Employer satisfaction with employees with a disability: comparisons with other employees

This paper is based on survey responses from 656 employers who had employed someone with a disability using support from disability employment agencies. Differences in employers' ratings of employees with and without a disability in relation to employer satisfaction and work performance are outlined. Employers were found to be less satisfied with their employee with a disability than with other employees; determinants of employer satisfaction differed between the two employee groups; and employers were predisposed to be more satisfied with employees with a disability than with other employees in relation to the work performance variables tested. Identifying areas directly related to employer satisfaction, and highlighting important differences in factors that determine employer satisfaction between these two employee groups, provides valuable direction for effective strategic planning of service interventions

How well do ecosystem-based planning units represent different componenets of biodiversity?

There are many proposals for managing biodiversity by using surrogates, such as umbrella, indicator, focal, and flagship species. We use the term biodiversity management unit for any ecosystem-based classificatory scheme for managing biodiversity. The sufficiency of biodiversity management unit classification schemes depends upon (1) whether different biotic elements (e.g., trees, birds, reptiles) distinguish between biodiversity management units within a classification (i.e., coherence within classes}; and (2) whether different biotic elements agree upon similarities and dissimilarities among biodiversity management unit classes (i.e., conformance among classes). Recent evaluations suggest that biodiversity surrogates based on few or single taxa are not useful. Ecological vegetation classes are an ecosystem-based classification scheme used as one component for biodiversity management in Victoria, Australia. Here we evaluated the potential for ecological vegetation classes to be used as biodiversity management units in the box-ironbark ecosystem of central Victoria, Australia. Eighty sites distributed among 14 ecological vegetation classes were surveyed in the same ways for tree species, birds, mammals, reptiles, terrestrial invertebrates, and nocturnal flying insects. Habitat structure and geographic separations also were measured, which, with the biotic elements, are collectively referred to as variables. Less than half of the biotic element-ecological vegetation class pairings were coherent. Generalized Mantel tests were used to examine conformance among variables with respect to ecological vegetation classes. While most tests were not significant, birds, mammals, tree species, and habitat structure together showed significant agreement on the rating of similarities among ecological vegetation classes. In this system, use of ecological vegetation classes as biodiversity management units may account reasonably well for birds, mammals, and trees; but reptiles and invertebrates would not be accommodated. We conclude that surrogates will usually have to be augmented or developed as hierarchies to provide general representativeness.

Clinical measurement of muscle tone using a velocity-corrected modified ashworth scale

Objective: To develop a new form of the modified Ashworth scale (MAS) for muscle-tone assessment that combines the MAS score with the passive muscle-stretching velocity during the assessment of muscle tone, resulting in a measure that has higher intertester reliability than the MAS.

Design: Twanty-two volunteer subjects with spinal cord injuries at a tertiary care outpatient and inpatient spinal cord injury rehabilitation center affiliated with a university were recruited for this study.

Results: A decision tree in which V-MAS scores were obtained was developed. The data obtained from three independent raters, when adjusted by means of the V-MAS, showed an excellent interrater reliability.

Conclusions: Results indicated that the V-MAS is a more reliable measure. In addition, the resulting units of the V-MAS, ranging from 0 to 1, are of the same form as pendulum test data. The V-MAS method is quite simple to use because the rater need only measure the angular range and duration of the passive movement to calculate average velocity during the MAS assessment in addition to the normal MAS rating of muscle tone.

Fire fighters' assessments of fireground risk

Fire fighters are often required to work in dynamic and hazardous environments involving a high level of uncertainty. The present study investigated 110 volunteer fire fighters’ assessments of levels of risk associated with a photographic depiction of a typical grassland fire situation. The fire fighters used a standard fire agency risk-rating matrix procedure requiring them to specify the severity of the hazards depicted and the probability of a mishap in order to rate overall level of risk (1 = Low; 4 = Extreme). The risk ratings made by the fire fighters varied greatly. The overall rate of agreement with the risk level rating of the situation made by a panel of expert fire officers (=1, Low) was only 27%. It seems that use of a standard risk-rating matrix procedure by fire fighters at incidents, as recommended currently by many fire agencies, is likely to result in unreliable risk assessments, at least in the absence of effective training in the risk assessment procedure. The 110 volunteers were also asked to identify the total number of potential hazards apparent in five photographs depicting different kinds of emergency incidents. Identifying more hazards was found to be associated with (a) previous personal experience of a ‘near-miss’; and (b) higher levels of education. The findings imply that when faced with identical fire ground situations, individual fire fighters are likely to differ in their situational awareness of hazards and consequent risk assessments.

Do organizational service recovery actions impact on hotel guests future intentions and does speed of recovery matter?

This paper investigates hotel guests’ responses to organizational actions dealing with service failure. Eight service failure scenarios were used to identify guests’ intentions towards future visits. Guests’ intentions to switch hotels, revisit the property and remain loyal to the chain were found to vary based on the recovery efforts undertaken. This research found that empowering employees contribute to positive consumer intentions toward the service provider. Compensation was also found effective if offered through empowered employees. Speed of response to service failure was also identified as important action to improve consumer future intentions. Based on these findings, implications for future research are highlighted. Recommendations to the practitioners of hospitality and tourism sector were made for the management of failed service encounter.

Practical application of the Delphi technique in a bicultural mental health nursing study in New Zealand

Background. Numerous studies have employed the Delphi technique to seek expert opinion about aspects of clinical practice. When researching literature on the Delphi technique, however, we discovered discrepancies in its application, and a lack of detail when reporting design, administration, and analysis methods. Such lack of specificity hinders the replicability and assessment of the clinical and cultural validity and reliability of Delphi studies.

Aim. The aim of this paper is to detail the practical application of the Delphi technique as a culturally and clinically valid means of accessing expert opinion on the importance of clinical criteria.

Methods. Reference is made to a bicultural New Zealand mental health nursing clinical indicator study that employed a three-round reactive Delphi survey. Equal proportions of Maori and non-Maori nurses (n = 20) and consumers (n = 10) rated the importance of 91 clinical indicator statements for the achievement of professional practice standards. Additional statements (n = 21) suggested by Delphi participants in round 1 were included in subsequent rounds. In round 2, participants explained the rating they applied to statements that had not reached consensus in round 1, and summarized responses were provided to participants in round 3. Consensus was considered to have been achieved if 85% of round 3 ratings lay within a 2-point bracket on the 5-point Likert-scale overall, or in one of the Maori nurse, non-Maori nurse, or consumer groups. A mean rating of 4·5 after round 3 was set as the importance threshold.

Findings. Consensus occurred overall on 75 statements, and within groups on another 24. Most statements (n = 86) reached the importance benchmark.

Conclusions. When rigorous methods of participant selection, group composition, participant feedback, and determination of consensus and importance are employed, the Delphi technique is a reliable, cost-effective means of obtaining and prioritizing experts judgements.