Paradigm shift to enhanced water supply planning through augmented grids, scarcity pricing and adaptive factory water : a system dynamics approach

This paper details a system dynamics model developed to simulate proposed changes to water governance through the integration of supply, demand and asset management processes. To effectively accomplish this, interconnected feedback loops in tariff structures, demand levels and financing capacity are included in the model design, representing the first comprehensive life-cycle modelling of potable water systems. A number of scenarios were applied to Australia's populated South-east Queensland region, demonstrating that introducing temporary drought pricing (i.e. progressive water prices set inverse with availability), in conjunction with supply augmentation through rain-independent sources, is capable of efficiently providing water security in the future. Modelling demonstrated that this alternative tariff structure reduced demand in scarcity periods thereby preserving supply, whilst revenues are maintained to build new water supply infrastructure. In addition to exploring alternative tariffs, the potential benefits of using adaptive pressure-retarded osmosis desalination plants for both potable water and power generation was explored. This operation of these plants for power production, when they would otherwise be idle, shows promise in reducing their net energy and carbon footprints. Stakeholders in industry, government and academia were engaged in model development and validation. The constructed model displays how water resource systems can be reorganised to cope with systemic change and uncertainty.

Augmented platelet calcium uptake in response to serotonin stimulation in patients with major depression measured using Mn2+ influx and 45Ca2+ uptake.

There is an augmented platelet intracellular calcium response to serotonin stimulation in major depression. The role that calcium influx has in this process is not known. The objective of this study was to determine platelet calcium influx in response to serotonin by two methods, Mn2+ influx and 45Ca2+ uptake, in order to observe if the uptake response to serotonin was augmented in major depression by comparing the response to normal controls. The use of the two methods of calcium influx showed that serotonin stimulates calcium uptake into platelets. Furthermore, patients with major depression have significantly augmented platelet calcium uptake in response to serotonin. The interesting finding was that calcium uptake into platelets is biphasic, occurring immediately and after five minutes. These results may support the two pool model for calcium oscillations within cells whereby extracellular calcium is needed for intracellular calcium release, and for replenishment of depleted stores once intracellular calcium is released.

Estimation of factor-augmented panel regressions with weakly influential factors

The use of factor-augmented panel regressions has become very popular in recent years. Existing methods for such regressions require that the common factors are strong, such that their cumulative loadings rise proportionally to the number of cross-sectional units, which of course need not be the case in practice. Motivated by this, the current paper offers an indepth analysis of the effect of non-strong factors on two of the most popular estimators for factor-augmented regressions, namely, principal components (PC) and common correlated effects (CCE).

Immigration Museum application: augmented reality application with animated museum guide

Starting with the Immigration Museum, this app will support Multilingual Orientation Tours to each venue of Museum Victoria.

Overcoming principles: dialogue in business ethics

Basing itself upon a virtue-ethics approach, this paper questions the value of syllogistic or deductive approaches to teaching business ethics and to the modelling of the kinds of judgments that executives are asked to make in situations of moral complexity. It urges that the teaching of ethical theories, of ethical principles, and of logical methods of moral thinking, and the use of hypothetical or historical scenarios, be augmented by the method of `Real Case Dialogue' which more nearly models the eal and intense existential realities of ethical decision making. A brief description of such a dialogue is offered so aslo provide an example.

Fatty acid metabolism in the freshwater fish Murray cod (Maccullochella peelii peelii) deduced by the whole-body fatty acid balance method

The whole-body fatty acid balance method was used to investigate the fatty acid metabolism in Murray cod (Maccullochella peelii peelii) fed diets containing canola (CO) or linseed oil (LO). Murray cod were able to elongate and desaturate both 18 : 2n − 6 and 18 : 3n − 3. In fish fed the CO diet, 54.4% of the 18 : 2n − 6 consumed was accumulated, 38.5% oxidized and 6.4% elongated and desaturated to higher homologs. Fish fed the LO diet accumulated 52.9%, oxidized 37% and elongated and desaturated 8.6% of the consumed 18 : 3n − 3. The overall roles of n − 6 fatty acids appeared more important in Murray cod compared to other freshwater species. Murray cod also showed a preferential order of utilization of C18 fatty acid for energy production (18 : 3n − 3 > 18 : 2n − 6 > 18 : 1n − 9). Moreover, it is demonstrated that an increase in dietary 18 : 3n − 3 is directly responsible of increased desaturase activity and augmented saturated fatty acid accumulation in the fish body. The present study also suggests that, in the context of the possible maximization of the natural ability of fish to produce long chain polyunsaturated fatty acids, the whole-body approach can be considered well suited and informative and Murray cod is a suited candidate to fish oil replacement for its diets.

Abating the consequences of managerialism on the forgotten employees : the issues of support, control, coping and pay

With the widespread and continuing adoption of managerialism in the public sector, ignoring the impact of change on employees could prevent managerialism from achieving its goals. Subsequently, this study investigates the efficacy of an augmented demand-control-support (D-C-S) model in predicting three of the key employee outcomes in the context of organizational change—psychological health, job satisfaction, and organizational commitment. Analyses of a survey of 207 employees in the Australian public sector, a sector that has undergone, and continues to undergo, substantial change toward managerialism, found that the augmented D-C-S model explained a significant proportion of the employee outcomes in the public sector context. The most important variables were work-based social support and job control. Coping style and perceptions of work conditions, such as pay, were also significant. The augmented D-C-S model provides a useful, proven tool for managers operating within the contemporary public sector.

Organizational change in the public sector: augmenting the demand control model to predict employee outcomes under New Public Management

This study identifies the environmental and personal characteristics that predict employee outcomes within an Australian public sector organization that had, under New Public Management (NPM), implemented a variety of practices traditionally found in the private sector. These are more results-oriented, and their adoption can be accompanied by increased strain for employees. The current investigation was guided by two complementary theories, the Demand Control Support (DCS) model and Conservation of Resources (COR) theory, and sought to examine the benefits of building on the DCS to include both situation-specific stressors and internal coping resources. Survey responses from 1,155 employees were analysed. The hierarchical regression analyses indicated that both external and employee-centred variables made significant contributions to variations in psychological health, job satisfaction, and organizational commitment. The external resources, work based support and, to a lesser extent, job control, predicted relatively large proportions of the variance in the target variables. The situation-specific stressors, particularly those involving harmful management practices (e.g., insufficient time to do job as well as you would like, lack of recognition for good work), made significant contributions to the outcome measures and generally supported the process of augmenting the generic components of the DCS with more situation-specific variables. In terms of internal resources, problem and emotion-based coping improved the capacity of the model to predict psychological health. The results suggest that the impact of NPM can be ameliorated by incorporating the dimensions of the augmented DCS and coping resources into the change programme.

Work characteristics and employee outcomes in local government

The overall objective of this study was to examine the work characteristics that make significant contributions to extra-role performance (as measured by the helping dimension of citizenship behaviour) and employee wellbeing (measured by job satisfaction and psychological health) in a local government. The work characteristics examined were based on the demand-control-support (DCS) model, augmented by organization-specific characteristics. The results indicate that characteristics described in the core DCS are just as relevant to extra-role performance as they are to more traditional indicators of job stress. Although the more situation-specific conditions were not predictive of citizenship behaviour, they made unique contributions to job satisfaction

Can written nursing practice standards improve documentation of initial assessment of ED patients?

Introduction: There is wide variation in emergency nursing practice in terms of initial patient assessment and the interventions implemented in response to these patient assessment findings. It is hypothesised that written ED nursing practice standards will reduce variability in documentation standards related to initial patient assessment.

Aim: This study aimed to examine the effect of written ED nursing practice standards augmented by an in-service education programme on the documentation of the initial nursing assessment.

Method: A pre-test/post-test design was used. Initial patient assessment was assessed using the Emergency Department Observation Chart. All adult patients (>18 years) who presented with chest pain and who were triaged to the general adult cubicles were eligible for inclusion in the study. Random sampling was used to select the patients for the pre-test (n = 78) and post-test groups (n = 74).

Results: There was significant improvement in documentation of all aspects of symptom assessment except quality and historical variables: pre-hospital care, cardiac risk factors, and past medical history. Improvements in documentation of elements of primary survey assessment were variable. There were significant increases in documentation of respiratory effort, chest auscultation findings, capillary refill and conscious state. There was a significant 18.3% decrease in the frequency of documentation of respiratory rate and no significant changes in documentation of oxygen saturation, heart rate or blood pressure.

Conclusion: Written ED nursing practice standards were effective in improving the documentation of some elements of initial nursing assessment for patients with chest pain. Active implementation strategies are important to ensure effective uptake of written practice standards and the relationship between nursing documentation and actual clinical practice warrants further consideration using a naturalistic approach in real practice settings.

Randomised controlled trial evaluating the effectiveness of behavioural interventions to modify cardiovascular risk factors in men and women with imparied glucose tolerance: outcomes at 6 months

Aims: To evaluate the efficacy of interventions to promote a healthy diet and physical activity in people with impaired glucose tolerance (IGT). Methods: A randomised controlled trial in Newcastle upon Tyne, UK, 1995–98. Participants included 67 adults (38 men; 29 women) aged 24–75 years with IGT. The intervention consisted of regular diet and physical activity counselling based on the stages of change model. Main outcome measures were changes between baseline and 6 months in nutrient intake; physical activity; anthropometric and physiological measurements including serum lipids; glucose tolerance; insulin sensitivity. Results: The difference in change in total fat consumption was significant between intervention and control groups (difference −21.8 (95% confidence interval (CI) −37.8 to −5.8) g/day, P=0.008). A significantly larger proportion of intervention participants reported taking up vigorous activity than controls (difference 30.1, (95% CI 4.3–52.7)%, P=0.021). The change in body mass index was significantly different between groups (difference −0.95 (95% CI −1.5 to −0.4) kg/m2, P=0.001). There was no significant difference in change in mean 2-h plasma glucose between groups (difference −0.19 (95% CI −1.1 to 0.71) mmol/l, NS) or in serum cholesterol (difference 0.02 (95% CI −0.26 to 0.31) mmol/l, NS). The difference in change in fasting serum insulin between groups was significant (difference −3.4 (95% CI −5.8 to −1.1) mU/l, P=0.005). Conclusions: After 6 months of intensive lifestyle intervention in participants with IGT, there were changes in diet and physical activity, some cardiovascular risk factors and insulin sensitivity, but not glucose tolerance. Further follow-up is in progress to investigate whether these changes are sustained or augmented over 2 years.

eBusiness and information systems : academic programs in Australia and New Zealand in the e-Age

Universities are increasingly turning to ‘fashionable’ education programs to attract bright, high-quality students to both under-graduate and post-graduate degree programs. Traditional offerings in technology areas, such as Information Systems and Information Technology are being augmented by newer, more marketable degrees in areas such as eCommerce/eBusiness. This paper analyses the eCommerce/eBusiness and Information Systems (IS) / Information Technology (IT) academic programs in Australian and New Zealand universities on the basis of Kotler and Fox's service offering model of educational institutions; and considers what differences exist between these two apparently similar areas of academic endeavour. Finally we look at the trends of academic program delivery in the e-age and question whether universities need to take a more consumer-product approach to the issue of attracting appropriate students.

From the comforts of print to the possibilities of digital media: leading the way in teaching political leadership in a faculty of arts

Since it inception, Deakin University has been committed to the delivery of innovative, high quality course materials to its off campus students. Until recently these packages were predominantly print based, although augmented with audio-visual materials delivered in cassette format. Ironically, with the advent of information and communications technologies (ICT), and some select computer assisted learning and multimedia packages, there was an overall decline in the use of audio and video as important means of enhancing learning. Like many other universities, Deakin has moved to a strong, centralised approach to the provision of its digital and online corporate technology environment. With investment in these technologies has come a renewed interest in the ways in which text and audio-visual materials in digital form can enhance students' learning experiences. Moreover, the ways in which a variety of digital media supported by online developments can create new models and approaches to teaching/learning has figured prominently. This paper presents a case study of how this challenge has been taken up in a unit, Political Leadership, in the Faculty of Arts. The academic teacher's intentions in moving to a completely digital approach are examined along with students' experiences of learning in the subject. Issues are considered from the experience.