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(2011)Journal ArticleThin TiO2 films on quartz substrates were prepared by spin coating of undoped and metal-ion-doped Sol-Gel precursors. These films were characterised by Scanning Electron Microscopy, Laser Raman Microspectroscopy, X-ray Diffraction and UV-Vis Transmission. The photocatalytic performances of the films were assessed by the photo-degradation of methylene-blue in aqueous solution under UV irradiation. Films exhibited a high degree of orientation and a thermal stabilization of the anatase phase as a result of substrate effects. In the absence of dopants, the rutile phase formed as parallel bands in the anatase which broadened as the transformation progressed. TiO2 films doped or co-doped with transition metals exhibited the formation of rutile in segregated clusters at temperatures under ~800°C as a result of increased levels of oxygen vacancies. Photocatalytic activity of the films synthesised in this work was low as likely result of poor TiO2 surface contact with dye molecules in solution. The presence of transition metal dopants appears detrimental to photocatalytic activity while the performance of mixed phase films was not observed to differ significantly from single phase material.
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(2012)Journal ArticleInternet based cognitive behavioural therapy (CBT) is efficacious for the treatment of anxiety and depression. The current study aimed to examine the effectiveness of internet based CBT prescribed by primary care clinicians for the treatment of depression and generalised anxiety disorder. Psychological distress data from 302 patients who completed an online CBT course for depression and 361 patients who completed an online CBT course for generalised anxiety disorder were subjected to growth mixture analysis. For both disorders psychological distress decreased across each lesson in a quadratic trend. Two classes of individuals were identified with different trajectories of change: a large group of individuals who responded well to the courses and a smaller group of individuals with a lower response. Both groups were similar with respect to sociodemographic characteristics however the low responders tended to have higher levels of symptom severity and psychological distress at baseline in comparison to the responders. For the majority of patients (75-80%) the internet CBT courses for depression and generalised anxiety disorder were effective. Further research is required to identify and effectively treat the smaller proportion of patients who did not improve during internet CBT.
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(2013)Journal ArticleBackground and Objectives: Thought-action fusion (TAF), or maladaptive cognitions regarding the relationship between mental events and behaviours, has been implicated in the development and maintenance of obsessive-compulsive disorder (OCD). As some religions promote TAF-like appraisals, it has been proposed that religiosity may play a role in the transformation of normally occurring intrusive thoughts into clinically distressing obsessions. No research, however, has experimentally investigated the mediating role of TAF on the relationship between religiosity and OC symptoms. Methods: 85 Christian, Jewish, and Atheist/Agnostic participants were exposed to an experimental thought-induction protocol and reported on their associated levels of distress, guilt, feelings of responsibility, and urge to suppress target intrusions experienced during a 5-minute monitoring period. Participants also completed measures of obsessive-compulsive symptomatology, TAF beliefs, and general psychopathology. Results: Using PROCESS and bootstrapping analyses, a test of the conditional indirect effects of religiosity on obsessive-compulsive symptoms revealed that Christianity moderated the effects of religiosity on moral TAF beliefs, which in turn mediated the relationship between religiosity and obsessive-compulsive symptoms. Furthermore, in the Christian group, moral TAF beliefs mediated the relationship between religiosity and ratings of guilt and responsibility following the experimental protocol. Limitations: The use of university students with moderate levels of religiosity. Conclusions: Collectively the results suggest that obsessional thinking is not attributable to religion per se, but that teachings underlying certain religious doctrines may fuel TAF beliefs that are implicated in the maintenance of OCD.
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(2012)Journal ArticleThe CACCC-box binding protein erythroid Krüppel-like factor (EKLF/KLF1) is a master regulator that directs the expression of many important erythroid genes. We have previously shown that EKLF drives transcription of the gene for a second KLF, basic Krüppel-like factor, or KLF3. We have now tested the in vivo role of KLF3 in erythroid cells by examining Klf3 knockout mice. KLF3-deficient adults exhibit a mild compensated anemia, including enlarged spleens, increased red pulp, and a higher percentage of erythroid progenitors, together with elevated reticulocytes and abnormal erythrocytes in the peripheral blood. Impaired erythroid maturation is also observed in the fetal liver. We have found that KLF3 levels rise as erythroid cells mature to become TER119(+). Consistent with this, microarray analysis of both TER119(-) and TER119(+) erythroid populations revealed that KLF3 is most critical at the later stages of erythroid maturation and is indeed primarily a transcriptional repressor. Notably, many of the genes repressed by KLF3 are also known to be activated by EKLF. However, the majority of these are not currently recognized as erythroid-cell-specific genes. These results reveal the molecular and physiological function of KLF3, defining it as a feedback repressor that counters the activity of EKLF at selected target genes to achieve normal erythropoiesis.
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(2014)Journal ArticleAim: This paper explores cultural and professional dynamics of HIV general practice nursing in Australia. It highlights specific contributions that HIV general practice nurses make to HIV medicine and considers how nurses’ clinical practice has been shaped by past experiences of the AIDS crisis and subsequent developments in HIV medicine. Background: In international contexts, nurses in HIV medicine commonly work as part of shared-care teams. In recent years, HIV general practice nursing has become a prioritised area for primary health care in Australia. Methods: Data for this analysis were drawn from 45 in-depth, semi-structured interviews conducted with nurses and general practitioners (GPs) who provide HIV care in general practice, and key informants who work in policy, advocacy or education and training of the HIV general practice workforce. Findings: Viewed through a socio-ecological framework of social capital, descriptive content analysis highlights a unique and strong HIV health professional identity, which emerged out of the adverse conditions experienced by nurses, GPs and allied health professionals during the 1980s AIDS crisis. Participants reported that today, HIV general practice nursing includes information provision, HIV treatment side-effect management, teaching patients methods to increase adherence to HIV treatments and capacity building with allied health professionals. Participants reported that HIV general practice nurses can reduce the clinical burden on GPs, ameliorate patients’ exposure to HIV health care-related stigma and discrimination and facilitate the emergence of a comprehensive and personalised model of shared primary health care based on trust and rapport, which is desired by people with HIV. This study’s findings support the future expansion of the role of HIV general practice nurses in Australia and internationally. General practice nursing will become increasingly important in the scaling up of HIV testing and in caring for increasing numbers of people living with HIV.
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(2014)Journal ArticleAs the management of HIV changes and demand for HIV health services in primary care settings increases, new approaches to engaging the general practice workforce with HIV medicine are required. This paper reports on qualitative research conducted with 47 clinicians who provide HIV care in general practice settings around Australia, including accredited HIV s100 prescribers as well as other GPs and general practice nurses. Balanced numbers of men and women took part; less than a quarter were based outside of urban metropolitan settings. The most significant workforce challenges that participants said they faced in providing HIV care in general practice were keeping up with knowledge, navigating low caseload and regional issues, balancing quality care with cost factors, and addressing the persistent social stigma associated with HIV. Strategic responses developed by participants to address these challenges included thinking more creatively about business and caseload planning, pursuing opportunities to share care with specialist clinicians, and challenging prejudiced attitudes amongst patients and colleagues. Understanding and supporting the needs of the general practice workforce in both high and low HIV caseload settings will be essential in ensuring Australia has the capacity to respond to emerging priorities in HIV prevention and care.
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(2014)Journal Article
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(2010)Journal ArticlePurpose: The proposed CoPER project (Community of Practice for Engaging in Research) responds to a need for increased research capacity in a clinical setting. We put forward an argument and a design for a prospective action research project to extend research capacity via an integrated academic and practitioner community of practice in an Emergency Department (ED). Procedures: This paper explores the research needs of clinicians, articulates the concept of community of practice in light of these needs, and outlines the rationale for considering communities of practice as a potential contributor to building research capacity in a clinical setting. Findings: A potential methodology is suggested to test the linkage between research needs, the concept of a community of practice model in a clinical setting, and the contribution of such a model to building research capacity in a clinical setting via the CoPER framework. Conclusions: Combined data from this proposed mixed method action research (survey, focus groups, interviews, observation) are expected to enable the production of a set of facilitators and enablers with a view to building a community of research practice which make the case study transferable to other clinical and non-clinical work settings.
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(2011)Journal ArticleAs the digital environment continues to become more pervasive in our lives, academic libraries have had to adapt to ensure that services remain relevant to users’ needs. Research was conducted to examine the 2009-2011 refurbishment at the University of New South Wales (UNSW) Library and evaluate its success in meeting users' needs in terms of space and place, while also suggesting areas for improvement. The investigation used structured interviews to gauge students’ satisfaction with the Library’s space and/or facilities. Findings are explored under the following themes: collaborative study; individual study; spatial design; social space; technology; noise levels; and Help Zone. This research shows that users still require a physical space and the Library is highly valued as a place to congregate and study as it offers a welcoming and well designed environment with modern facilities.