19683 research outputs found
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A sulphide resistant Ag|AgCl reference electrode for long-term monitoring
No full textReference electrodes which demonstrate long-term potential stability are essential for many continuous monitoring applications and are commonly based on Ag|AgCl electrodes; however, these electrodes are susceptible to poisoning from aqueous sulphide species which are commonly present in wastewater and natural groundwater. This work presents a sulphide resistant solid-state reference electrode (SSRE) based on a composite material using suspended KCl electrolyte and sacrificial AgCl in a cross-linked polyvinyl acetate polymer matrix. Sulphidation of the sacrificial AgCl produces a stable Ag2S precipitate and prevents further ingress of the poisoning sulphide species through the composite material. A novel SSRE using this material is compared to a control SSRE without suspended AgCl and a typical liquid filled reference electrode. These three reference electrodes are studied using electrochemical impedance spectroscopy (EIS), and their application is also studied in potentiometric pH sensing and cyclic voltammetry (CV). The long-term sulphide resistance of the two SSREs is also studied with potentiometry, and cross-sections of these electrodes were examined using micro X-ray fluorescence (μXRF). Both SSREs demonstrated higher impedance than the liquid reference electrode but were similar to other SSREs reported in the literature. This impedance did not result a meaningful difference in potentiometric pH sensing or CV experiments done using typical scan rates. The KCl/AgCl SSRE exhibited remarkable sulphide resistance, with all samples demonstrating a stable potential without maintenance after ca. 120 days of continuous immersion in 1 g L−1 Na2S solution, whereas KCl SSRE samples all demonstrated significant drift before this time. μXRF sulphur maps revealed that suspended AgCl prevented sulphide ingress, thus protecting the embedded Ag|AgCl electrode. This work presents a reference electrode that could enable long-term monitoring in challenging sulphide solutions, and also highlights a novel approach for preventing reference electrode poisoning which could be more widely explored. </p
Governance of qualitative data sharing in Australia
No full textSharing qualitative data is a complex undertaking requiring attention to epistemological and ethical concerns, as well as technical dimensions including access protocols, resourcing costs, and accessibility beyond the academy. This report focuses on institutional approaches to the governance of qualitative research data. It has been prepared as part of the CADRE (Coordinated Access for Data, Research and Environments) Project. It also sets the context for and is a companion to the report Archiving & Sharing Qualitative Data: Implications for Data Management Platforms (McLeod et al. 2024), which unpacks the challenges and opportunities CADRE raises for archiving and sharing qualitative research data. </p
Voluntary self-exclusion from gambling: Expert opinions on gaps and needs for improvement
No full textAims: Voluntary self-exclusion (VSE) programmes are intended to minimise gambling-related harm. They are considered effective for the individual but several weaknesses have been reported that deter individuals from enrolment. The present paper summarises opinions about and experiences with VSE strategies and assesses gaps and needs with regard to the current self-exclusion regulations and programmes in seven jurisdictions. Methods: A total of 102 representatives from various sectors (research community; addiction help and care services; prevention; regulatory bodies; gambling providers) in Finland, Germany, Italy, Massachusetts (USA), Norway, Sweden, and Victoria (Australia) were surveyed about their experiences with and opinions about VSE strategies, as well as gaps and needs of the current VSE regulations in their jurisdiction. Results: The respondents agreed on the need for and importance of VSE programmes. However, in all participating jurisdictions, VSE regulations at the time of the survey were considered insufficient, and the respondents suggested potential improvements to facilitate the exclusion process, increase utilisation and reduce gamblers’ breaching VSE. Representatives of the gambling industry also emphasised the individual's responsibility. Conclusions: Individuals with gambling disorder require effective VSE programmes to cope with their addictive behaviour. To effectively reduce breaches, technical and legal solutions are necessary. This includes access controls based on complete nationwide registries, strict enforcement and preventing excluded gamblers from accessing unlicensed online operators.</p
Mobile breast screening services in Australia: A qualitative exploration of perceptions and experiences among rural and remote women aged ≥75 years
No full textObjective: This qualitative descriptive study draws on data collected from a sub-sample of 15 women participating in a national study (n = 60) exploring the breast cancer screening motivations and behaviours of women aged ≥75 years. The study aimed to understand why women living in rural and remote areas might continue accessing mobile breast cancer screening despite being outside the targeted age range. Setting: Settings ranged from large towns to very remote communities (according to Monash Modified Model (MMM) classification 3–7) where BreastScreen Australia mobile screening services were available. Participants: Interview data from 15 women aged ≥75 years living in rural and remote locations who had used mobile screening services was utilised for this study. Design: In-depth individual interviews were conducted via telephone or online platform (Zoom). These were transcribed verbatim and imported into NVivo software to enable thematic analysis to identify key themes. Results: Many women aged ≥75 years in rural and remote areas expressed clear intentions to continue breast cancer screening, despite no longer being invited to do so. They perceived great value in the mobile service and were highly appreciative for it yet acknowledged limited sources of information about the process of ongoing screening. Conclusion: Few women in rural and remote areas had discussed ongoing breast cancer screening with their general practitioner (GP). More information is required to inform women about the risks and benefits of ongoing screening. Without an invitation to attend screening rural women reported difficulty in knowing when the service would be available. Ongoing notification of the availability of mobile services for women aged ≥75 years in rural areas is recommended.</p
BHP_Pavements_Public.csv
No full textWater quality measurements for gravelly pavement herbfield communities, collected on the Bogong High Plains, Alpine National Park, Victoria, Australia.</p
The use of Open Dialogue in Trauma Informed Care services for mental health consumers and their family networks: A scoping review
No full textIntroduction: A large proportion of people who access mental health services have a lived experienced of trauma and are more likely to have a history of complex trauma. Open Dialogue and Trauma Informed Care practices identify previous trauma as a factor related to later psychosis. This scoping review has identified similarities and contrasts in how an Open Dialogue and Trauma Informed Care approach have been combined to complement one another for clinical work with people presenting with psychosis and previous trauma. Aim: We aimed to answer the following research question in this scoping review: What is known of the combined use of Open Dialogue and Trauma Informed Care practice when working with consumers and their family networks? As such, the purpose of this paper was to explore the application to practice and identify if any training existed and been evaluated. Method: This scoping review was based on the Arksey and O'Malley's framework. A comprehensive search was performed across five electronic databases. Grey literature was also searched through Psyche Info and Google Scholar for books, Dissertation and Theses, alongside hand searching of the reference of the studies. Articles searched was from January 2013 to January 2023. Results: Five distinct themes were identified from the literature: (1) Linking open dialogue with trauma, (2) Response to treatment, (3) Empowerment and information sharing, (4) Interpretation by clinical services, (5) Staff training outcomes. Discussion: Some tentative recommendations for practice recognised the individuals' unique story and perspective, suggested that trauma is an important concept to assess. Services practising as Trauma Informed Services that have incorporated an Open Dialogue approach have mixed experiences. The use of Open Dialogue may have some benefits for family work and exploring consumer narratives while building a network of support. However, consumers identified similar frustrations with service delivery as with the family therapy literature. For example, it was difficult to bring family members together and difficult to discuss previous traumatic events in front of family. People experiencing training in Open Dialogue reported it taking a slow pace and not what they were familiar with. Implications for Practice: Open Dialogue can facilitate engagement of consumers and their family networks and greater recognition of the peer workforce to promote collaboration in therapy is needed. Future research should also focus on evaluating the effectiveness of such services and comparing their outcomes across regions.</p
Impact of quality of care on outcomes in survivors of stroke with aphasia: A linked registry and hospital data observational study
No full textBackground: The impact of hospital care quality on patient outcomes in post-stroke aphasia remains unclear. We investigated the impact of nationally-endorsed acute stroke treatments on outcomes post-stroke, by aphasia status. Methods: Patient-level data from the Australian Stroke Clinical Registry (2009–2013) linked to national deaths, hospital emergency presentations and admissions data were used. Aphasia was identified for the index stroke event (ICD-10 diagnosis code R47.0). Impact of receiving an optimal stroke care bundle (stroke unit care, antihypertensive medication at discharge and discharge care plan) and an acute ischemic stroke (AIS) care bundle (stroke unit care, intravenous thrombolysis and aspirin within 48 h of admission) on outcomes were analysed using multivariable regression models with propensity score adjustment. Results: The study included 12,690 patients with a median age of 76, 54 % male, and 26 % with aphasia. Non-receipt of the optimal stroke care bundle was associated with worse survival, compared to optimal care, in people with aphasia (HR: 3.37; 95 % CI 2.10, 5.40; p </p
“It's just too far…”: A qualitative exploration of the barriers and enablers to accessing perinatal care for rural Australian women
No full textPurpose: Rural women and their babies experience poorer perinatal outcomes than their urban counterparts and this inequity has existed for decades. This study explored the barriers and enablers that exist for rural women in Australia in accessing perinatal care. Methods: A qualitative descriptive design, using reflexive thematic analysis, was employed. Semi-structured interviews were conducted in 2023 with women who had recently given birth in rural Victoria, Australia (n=19). A purposive sampling strategy was used, recruiting women via social media platforms from rural communities across the state. The Socioecological Model (SEM) was used as a framework to organise the findings. Results: Study participants reported multilevel barriers and enablers to accessing perinatal care in their own communities. Intrapersonal factors included financial resources, transportation, self-advocacy, health literacy, rural stoicism, personal agency, and cost of care. Interpersonal factors included factors such as ineffective relationships, poor communication, and care provider accessibility. Organisational factors included inequitable distribution of services, under-resourcing of perinatal services in rural areas, technology-enabled care models and access to continuity of care. Community factors included effective or ineffective interprofessional or interorganisational collaboration. Policy factors included centralisation of perinatal care, lack of funded homebirth and midwifery care pathways and access to free perinatal care. Conclusion: Participants in this study articulated several key barriers influencing access to perinatal care in rural areas. These factors impede help-seeking behaviour and engagement with care providers, compounding the impact of rurality and isolation on perinatal outcomes and experience of care. Key enablers to accessing perinatal care in rural communities were also identified and included personal agency, health literacy, social capital, effective collaboration and communication between clinicians and services, technology enabled care and free perinatal care.</p
Investigations into the Mechanism and Reactivity of Phenyliodine(III) Dichloride
No full textA thesis submitted in total fulfilment of the requirement for the degree of Master of Science to the School of Agriculture, Biomedicine and Environment, La Trobe University, Victoria, Australia.</p