Climatic variation and breeding in the Australian magpie (Gymnorhina Tibicen) : a case study using existing data

To anticipate the effects of climate change on Australia’s avifauna, it is first necessary to understand the current effects of climate (including climate variability) on life histories, and to examine the scope and nature of existing data that may provide the necessary historical context to anticipate the effects of climate change. This study examines naturally occurring geographical gradients (altitude, latitude) and the Southern Oscillation Index (SOI) as integrated measures of climate. These are then compared with the timing and ‘amount’ of breeding recorded for the Australian Magpie (Gymnorhina tibicen) using data from Birds Australia’s Nest Record Scheme and Atlas of Australian Birds, the NSW Bird Atlassers Inc.’s NSW Bird Atlas, and the Canberra Ornitholgists Group’s Garden Bird Survey. For this common, easily identified species, these data suggest links between Australian Magpie breeding and all three environmental variables. Breeding became later as altitude increased, the proportion of breeding records increased from north to south, and years of high SOI corresponded to more (and earlier) breeding in this species. That annual climatic fluctuations have a direct, immediate and substantial effect on breeding in the Australian Magpie, particularly on the amount of breeding that occurs, implies that longer term changes in climate will have substantial impacts on populations. Results were not solely temperature-driven, which makes predicting climate change impacts difficult. For rainfall, predictions are far less precise and regional variation is higher. The results also highlight the potential and limitations of current survey techniques for documenting the impacts of climate change on birds; in particular, the Nest Record Scheme does not measure the amount of breeding that occurs, but a useful index of this can be derived from bird atlassing data

A preliminary study on human resource management in international construction

As construction companies continue to explore foreign construction markets, various international construction projects are being undertaken in all corners of the world. In an international construction project with many unique and complicated characteristics, human resource management can play a significant role in promoting the efficient use of complex human resources. The aim of this paper is to establish a valid foundation for further research on measuring the impact of human resource management economically for international construction projects. The paper examines human resource management literature and identifies the application of the related management techniques to the construction industry. In addition, the paper uses the literature analysis to describe the nature of human resource management with particular reference to international construction projects. In particular, the research described in this paper identifies economic performance factors in the implementation human resource management in international construction projects. This paper also identifies the social effects of human resource management practices.

Qualitative exploration of the nature of grief-related beliefs and expectations

Societal expectations of grief impact the experience of bereavement. The congruence of societal expectations with current scientific understanding of grief is unknown. Therefore two qualitative studies explored community perceptions of grief. In study one, three small focus groups (N = 9) examined grief-related expectations associated with hypothetical scenarios of bereavement. In study two, the impact of grief-related perceptions on the lived experience of bereavement for 11 individuals was explored through semi-structured interviews. Across both studies, elements of a traditional stage model view of grief were evident, with participants viewing emotional expression of grief as important. An avoidant coping style in the bereaved was considered problematic. Findings of study two suggested that grief-related beliefs may impact the bereavement experience via appraisal of the grief response and willingness to support bereaved individuals. The studies suggested that stage model assumptions in the beliefs of the general population persist, although there was a recognition of diversity in the grief response.

The role of a prospective public health intervention study register in building public health evidence: proposal for content and use

Evidence-informed practice is a key component of public health and the focus of much discussion, of which the nature of evidence and how it is best gathered and appraised has formed a large part. Prospective registration of trials is now a key component of rigour and quality in clinical research and has been supported at an international level through the WHO International Clinical Trials Registry Program. This paper discusses the scope and benefits of trial registration in clinical research, including greater transparency and reduced publication bias. It then considers the potential for a Prospective Public Health Intervention Studies Register specific to the needs of public health and aspects to be included in such a register. It is argued that this initiative has the potential to facilitate increased global cooperation and efficiency in the production of high quality evidence and ultimately in improved health outcomes for populations.

Choosing ICT? A segmentation analysis of students' preferences for hybrid study mode

Students’ acceptance and use of ICT-based learning needs to be understood in terms of their preferences for alternatives such as face-to-face (FtF) or print-based learning. This paper reports on an investigation of students’ preferences for hybrid study modes. Cluster analysis was used to identify segments of students that had distinctive preferences for combinations of FtF, print and web-based study modes. Five segments were identified. These segments were distinguishable on some demographic and situational characteristics. The size and nature of the segments have implications for the hybrid modes offered by universities and the extent to which students’ may embrace the ICT-based innovations designed by educators.

Registered nurses` lived experience of advocacy within a critical care nuit: a phenomenological study

Anecdotally, it has often been expressed by registered nurses (RNs) working within critical care environments that they are patient advocates. However, to date, little systematic research has been undertaken to validate this assertion. Thus this project, which explored the lived experience of RNs working within a critical care unit in a country area of Australia, was conceived.

The five participants of this study were all Division 1 RNs possessing a critical care certificate and a minimum of 4 years' nursing experience. Through their participation in an in-depth audiotaped interview they revealed a wealth of experiences and ideas about their involvement as patient advocates. The results of this research indicate that the phenomenon of nurse advocacy is a multi-faceted process and embraces many kinds of activities that nurses engage in on behalf of their clients.

The findings of this study indicate that some of the participants' experiences are congruent with elements of advocacy contained within the nursing literature and statements of professional nursing bodies. However, there are some findings in this study that are not consistent with available literature. For instance, these participants markedly reject the notion that advocacy is an inappropriate concept for nurses, despite suggestions in the literature that this is an inappropriate role. Instead they wholeheartedly embrace this role, asserting it as central to their practice. Further, although the literature identifies potential controversies regarding enactment of the role of advocacy, the participants of this study are silent on these matters. It is not known what this silence implies and, in light of the study findings, it is recommended that nursing organisations, theorists and clinicians consider whether it is worthwhile to more clearly confirm the nature and role of advocacy within Australian nursing.

Procurement of construction facilities: a case study of design management within a design and construct organisation

Presents a case study of design management within an Australian design-construct organization on a large residential apartment project, with the purpose of identifying and analysing issues associated with the organization, responsibilities and stages of development in a typical design-construct project. Discusses the nature of introspection in the Australian construction industry, the shift in procurement methods, the design and build approach, whole life issues, the need for a design manager, and the role of the facilities manager. Profiles the case study organization and its contracts and procurement methods, before focusing on weaknesses in the company, the role of the project design development manager in leading the design team, managing the design consultants, and interacting and advising the developer in relation to design decisions. Suggests from the exercise that: the project manager should remain the overall project leader, manager and interface between design, cost, programme, buildability, construction and user requirements; the design manager should be responsible for issuing all documentation; and the design cost manager should be responsible for verifying that the design developed accords with project budgets, project brief and quality requirements in conjunction with the design manager.

Vice chancellors for the 21st century? A study of contemporary recruitment and selection practices in Australian universities

This article is based on recent Ph.D research. The practices for appointing Vice Chancellors (VC's) in Australian Universities were examined, together with the changing role of the VC and new demographic patterns in VC backgrounds. A number of other issues were also examined, including the training and preparation of VC's, mentoring and the changing skill base required to be effective in the role. In addition, the paradox was investigated of appointing academics from the ranks of individuals with non-business backgrounds, to run large enterprises which are being compelled to adopt an increasingly business-oriented focus. The methodology employed involved the use of a survey instrument administered to present and former VC's, Chancellors and members of selection panels, supplemented by interviews. Representatives of the Australian Vice Chancellors Committee (AVCC) and consultants operating in the academic field were also interviewed. In addition, extensive use was made of public domain material. The research was mainly qualitative in nature. However, use was also made of descriptive statistics to provide an insight into how higher education in Australia is changing and to analyse survey findings. Some key results of the research are reported, including the importance of informal processes such as networking in the selection of VC's, the key role played by Chancellors, and the continued practice of appointing VC's from within academia rather than the private sector. This is in spite of evidence that the role of the VC has changed to one of strategic planner and business manager rather than the more traditional role, in the context of a rapidly changing external environment. Suggestions are also made for ongoing research in the area.

Increasing central adiposity: the Nepean longitudinal study of young people aged 7-8 to 12-13y

BACKGROUND: Estimates of the prevalence of overweight and obesity in young people are typically based on body mass index (BMI). However, BMI may not indicate the level of central adiposity. Waist circumference has therefore been recommended to identify young people at risk of morbidity associated with central adiposity.

OBJECTIVE: To investigate (a) change in total and central adiposity between 7–8 and 12–13 y (b) agreement between classifying young people as overweight or obese based on total adiposity and central adiposity, and (c) risk factors associated with the development of total and central adiposity.

DESIGN: Anthropometric measurements were taken on 342 children in 1996/97 and 5 y later. Risk factors examined included birth weight, physical activity, TV viewing, pubertal status, parental adiposity, diet and socio-economic status.

RESULTS: Between 7–8 and 12–13 y indices of central adiposity increased more than total adiposity; waist circumference z-score increased by (means.d.) 0.740.92 and BMI z-score increased by 0.180.67. At 12–13 y there was moderate agreement between the two measures of adiposity (weighted kappa=0.64). However, waist circumference identified a greater number of young people as overweight or obese compared to BMI (41.2 vs 29.3%, P<0.001). Adiposity status at 7–8 y, maternal obesity, and pubertal stage were the strongest predictors of BMI status at 12–13 y. Risk factors associated with increased central adiposity were similar.

CONCLUSIONS: Overweight and obesity, as measured by waist circumference, is a bigger problem than is currently assessed by BMI. Targeting known risk factors for total adiposity may be an appropriate strategy for preventing increased central adiposity.

A qualitative study exploring barriers to a model of shared care for pre-school children`s oral health

Objective To explore the oral health beliefs and practices of primary health care professionals which may act as barriers to the development of a model of shared care for the oral health of pre-school children.

Design Qualitative focus group discussions and semi-structured interviews.

Setting Four rural local government areas in Victoria, Australia, 2003.

Subjects and methods Subjects: maternal and child health nurses, general medical practitioners, dental professionals and paediatricians working in the four local government areas. Data collection: discipline specific focus groups and semi-structured interviews. Data analysis: transcription, coding, clustering and thematic analysis.

Results Several strong themes emerged from the data. All participants agreed that dental caries is a significant health issue for young children and their families. Beliefs about the aetiology of dental caries and its prevention were variable and often simplistic, focusing predominantly on diet. Dental professionals did not believe that they had a primary role in the oral health of pre-school aged children but that others particularly maternal and child health nurses did. However other health care professionals were not confident in assuming this role.

Conclusions This study has identified important barriers and possible strategies for the development of an integrated and shared approach to preventing dental caries in pre-school aged children. Clear and consistent oral health information and agreed roles and responsibilities need to be developed.

Out of pocket costs to stroke patients during the first year after stroke - results from the North East Melbourne stroke incidence study

Non-reimbursed ‘out of pocket’ costs to stroke patients have not been included in existing cost of illness studies. We aimed to determine the nature and magnitude of ‘out of pocket’ costs to stroke patients during the first year after stroke. ‘Out of pocket’ costs during the first year after stroke were documented for 165 persons registered in a community-based stroke incidence study during 1996/1997. Virtually all cases reported some ‘out of pocket’ costs. The average cost over 12 months was A$1110. The highest cost items were home modifications, aids and equipment. The most commonly incurred expense was for prescription medications. Total ‘out of pocket’ costs incurred by first-ever stroke patients in Australia in 1997 were estimated to be A$29 million or 5% of the total cost of stroke. The majority of ‘out of pocket’ costs relate to post-acute care aimed at minimising disability and handicap rather than to ‘acute’ healthcare.

A mechanistic study of the intestinal absorption of crypotanshinone, the major active constituent of Saliva miltiorrhiza

The nature of intestinal absorption of most herbal medicine is unknown. Cryptotanshinone (CTS) is the principal active constituent of the widely used cardiovascular herb Salvia miltiorrhiza (Danshen). We investigated the oral bioavailability of CTS in rats and the mechanism for its intestinal absorption using several in vitro and in vivo models:1) Caco-2 cell monolayers; 2) monolayers of MDCKII cells overexpressing P-glycoprotein
(PgP); and 3) single-pass rat intestinal perfusion with mesenteric vein cannulation. The systemic bioavailabilities of CTS after oral and intraperitoneal administration at 100 mg/kg were 2.05 and 10.60%, respectively. In the perfused rat intestinal model, permeability coefficients based on CTS disappearance from the luminal perfusate (P_lumen) were 6.7- to 10.3-fold higher than permeability coefficients based on drug appearance in venous blood (P_blood). P_blood significantly increased in the presence of the P-gP inhibitor, verapamil. CTS transport across Caco-2 monolayers was pH-, temperature- and ATP-dependent. The transport from the apical (AP) to the basolateral (BL) side was 3- to 9-fold lower than that from the BL to the AP side. Inclusion of verapamil (50 µM) in both AP and BL sides abolished the polarized CTS transport across Caco-2 cells. Moreover, CTS was significantly more permeable in the BL to AP than in the AP to BL direction in MDCKII and MDR1-MDCKII cells. The permeability coefficients in the BL to AP direction were significantly higher in MDCKII cells overexpressing PgP. These findings indicate that CTS is a substrate for PgP that can pump CTS into the luminal side.

Issues in the implementation of cross-cultural management in Australia-evidence from a study of selected public and private sector organisations

This study examines the current status of cross-cultural management (CCM) in Australia.

The study is based on Reyes' (2004) Ph.D research of a qualitative nature in five organisations in the public and private sectors selected from a sample of organisations which appear to lead the field in Australia in respect of CCM. Literature is also surveyed to present a picture of the current legal and institutional setting of CCM in Australia and provide a context for the study.

Analysis of the findings highlights the gap between cross-cultural rhetoric and action in workplace situations. Problems are identified leading to incomplete and inadequate implementation of CCM in the respondent organisations. The study argues for the need for management to take a systems approach to the formulation and implementation of CCM. Some suggestions are made for improvements in the future.

Year 12 students' mental models of the nature of light

This paper reports on the third year of a three-year longitudinal investigation into six Year 10 secondary students’ understanding of optics at a secondary school level. During the first two years of the study the students’ understanding of geometrical optics was explored with the adoption of constructivist teaching and learning strategies. The students' understanding of geometrical optics following the Year 11 teaching stage then formed the basis of exploration of their mental models of the nature of light. This exploration occurred before, during and following a Year 12 teaching stage where the students studied physical optics and quantum ideas. Before the Year 12 teaching stage the students had constructed mental models of light that related to their understanding of a ray. Over the Year 12 teaching stage the students’ mental models changed to conceptualizations of a photon. There was evidence in the students’ mental models of a hybridization of the particle and wave scientific models. That is, they conceptualized the photon as having both wave and particle characteristics. The variation in the students’ hybrid models also suggested a variation in the way they conceived of the nature of scientific models.

Little big boys: a study of peers, power and pedagogy

In this paper we will argue that the dominant discourse on young males 'at risk' focuses too narrowly on the adolescent and young adult years. There is a tendency to individualise, both practically and theoretically, behaviours that are thought to substantiate the application of this category. Against this backdrop, we report on a study undertaken with a group of 6-8 year old boys in a primary school setting. The research was compiled around the interactions of an 'affinity group' of five young males across a six-month period. Prominent in our discussion of this data will be, the contextual nature of behaviour and identity, the influential role of the peer group, and the desire to 'other' in defining the self. We conclude by considering some of the implications this work has for the way mainstream schooling is structured and practiced.