Analysis of circadian rhythms from online communities of individuals with affective disorders

The circadian system regulates 24 hour rhythms in biological creatures. It impacts mood regulation. The disruptions of circadian rhythms cause destabilization in individuals with affective disorders, such as depression and bipolar disorders. Previous work has examined the role of the circadian system on effects of light interactions on mood-related systems, the effects of light manipulation on brain, the impact of chronic stress on rhythms. However, such studies have been conducted in small, preselected populations. The deluge of data is now changing the landscape of research practice. The unprecedented growth of social media data allows one to study individual behavior across large and diverse populations. In particular, individuals with affective disorders from online communities have not been examined rigorously. In this paper, we aim to use social media as a sensor to identify circadian patterns for individuals with affective disorders in online communities.We use a large scale study cohort of data collecting from online affective disorder communities. We analyze changes in hourly, daily, weekly and seasonal affect of these clinical groups in contrast with control groups of general communities. By comparing the behaviors between the clinical groups and the control groups, our findings show that individuals with affective disorders show a significant distinction in their circadian rhythms across the online activity. The results shed light on the potential of using social media for identifying diurnal individual variation in affective state, providing key indicators and risk factors for noninvasive wellbeing monitoring and prediction.

Phytophthora cinnamomi in native vegetation communities of southern Victoia - morphological variation and paragyny among isolates

Morphology has often been used as an indicator of variability within species. The present study investigated morphological and physiological characteristics of isolates of Phytophthora cinnamomi collected from diseased vegetation communities at Anglesea, Victoria, and isolates collected from other regions in the State. Characteristics studied included growth rate on potato-dextrose agar (PDA), corn-meal agar and V8-juice agar at 24°C, growth rate on V8 agar at 15°C, colony morphology on PDA, sporangial and gametangial morphology, sporangial production and mating type. Phenotypic variation was demonstrated in radial growth rate, colony morphology and sporangial dimensions. Sporangial and oogonial dimensions and sporangial production were not significantly different between isolates from different geographical regions. All isolates were found to be of the A2 mating type suggesting variation was derived asexually. Paragynal associations, in an organism characteristically defined as amphigynal, were observed following crossing with A1 isolates. This is the first such study undertaken in southern Victoria. The findings highlight the importance of appropriate management of an area of such high conservation value as the Anglesea Heath to contain the current infection and to prevent introduction of new isolates into the area.

A trial of nurse practitioner scope of practice

Aims. The aim of this paper is to report a trial to investigate the feasibility of the nurse practitioner role in local health service delivery and to provide information about the educational and legislative requirements for nurse practitioner practice.

Background. Nurse practitioners have been shown to offer a beneficial service and fill a gap in health care provision. However, the lack of publications describing, critiquing, or defending the way that existing nurse practitioner roles have been developed may lead to a lack of clarity in comparing the nurse practitioner scope of practice internationally. In Australia, credible exploratory research is needed to realize the potential of nurse practitioners to bridge the divide of inequitable distribution of health services. A trial of nurse practitioner services in the Australian Capital Territory provided an excellent opportunity to investigate these scope and continuity issues.

Methods. This was an observational analytic study using multiple data sources. Four models of nurse practitioner service were chosen from a competitive field of applications that were evaluated according to efficacy, feasibility, and sustainability across specified selection criteria. Each model in the trial included a clinical support team, with the nurse practitioner candidate 'working-into-the-role' and collecting demographic, clinical practice, patient outcome, and health service and consumer survey data over a 10 month period.

Findings. The trial identified the broad potential of the nurse practitioner role, its breadth and limitations, and its impact on selected health services in the Australian Capital Territory. Data from individual models were compared highlighting generic elements, and formed the basis for the development of the scope of practice for the Australian Capital Territory nurse practitioner models.

Conclusions. This study has validated a research-based, iterative process for initial development of nurse practitioner scope of practice for any Australian specialization. Importantly, the study concluded with the scope of practice as a finding, rather than commencing with it a priori. Although general areas of health care need and under-servicing were identified at the outset, the process tested both the expansion and parameters of the roles.

Foucault's 'What is an author' : towards a critical discourse of practice as research

A vexed issue for many artistic researchers is related to the need for the artist/researcher to write about his or her own work in the research report or exegesis. In the creative arts, the outcomes that emerge from an alternative logic of practice are not easily quantifiable and it can be difficult to articulate conclusions objectively given the emotional and ideological investments and the intrinsically subjective dimension of the artistic process. How then, might the artist as researcher avoid on the one hand, what has been referred to as 'auto-connoisseurship', the undertaking of a thinly veiled labour of valorising what has been achieved in the creative work, or alternatively producing a research report that is mere description or history?

In this paper I suggest that a way of overcoming such a dilemma is for creative arts researchers to shift the critical focus away from the notion of the work as product, to an understanding of both studio enquiry and its outcomes as process. I’d like to draw on Michel Foucault’s essay ‘What is An Author ‘ to explore how we might move away from art criticism to the notion of a critical discourse of practice-led enquiry that involves viewing the artist as a researcher, and the artist/critic as a scholar who comments on the value of the artistic process as the production of knowledge.

Foucault’s essay provides artistic researchers with a template for more objective and distanced discourse on the practice-led research process and its writing. It allows researchers to locate themselves within contexts of theory and practice and provides an analytical framework though which researchers might locate themselves and their work within the broader social arena and field of research, As I will show with reference to the work of Donna Haraway and a number of commentaries on Pablo Picasso’s Demioselles d’Avignon, an application of Foucault’s ideas need not negate those subjective and situated aspects of practice as research.

Scope of practice in forensic nursing

1. There is significant role variation, across the Western world, in relation to how forensic nurses practice. 2. The authors conducted a pilot survey of forensic nurses in Australia, New Zealand, the United States, and the United Kingdom to examine forensic nursing practice, role definition, and role boundaries. 3. Issues arising from the data include the visibility of forensic nurses, the client group, forensic-specific education, and role development.

Defining the scope of practice of the emergency nurse practitioner role in a metropolitan emergency department

This study examined the emergency nurse practitioner candidate (ENPC) scope of practice in a Victorian emergency department (ED). The emergency nurse practitioner (ENP) role is relatively new in Victoria and the scope of the ENP(C) practice is yet to be defined. International research literature regarding the ENP role has focused on outcomes such as patient satisfaction, waiting times and/or ED length of stay, accuracy and adequacy of documentation, use of radiography, and patient education, health promotion and communication issues. A prospective exploratory design was used to conduct this cohort study. There were 476 ENPC-managed patients between 14 July 2004 and 31 March 2005 with an average age of 29 years. The majority (77.2%) of ENPC-managed patients were discharged from the ED. The majority of the ENPC time was devoted to clinical practice (55%) and development of clinical practice guidelines (25%). Of patients managed by the ENPC, 49.6% required medications, 51% required diagnostic imaging and 8.6% required pathology testing during their ED stay. The most common discharge referrals were made to local medical officers (73.5%) and the most common referrals made for patients requiring admission were made to the plastic surgery (37.3%) and orthopaedic (35.5%) units. Extensions to the current scope of emergency nursing practice are pivotal to effective management of specific patient groups by ENP. The ENP model of care is an important strategy for the management of increased service demands in Victoria; however, little is known about the scope of the ENPC practice and many outcomes of the ENP care are yet to be defined. Further research to better understand the relationships between ENP outcomes is required if the contribution that ENPs make to emergency care is to be accurately quantified.

Communication dynamics : discussion boards, weblogs and the development of communities of inquiry in online learning environments

Online learning environments (OLEs) are now critical to teaching and learning across Australian higher education. Their influence impacts on the availability of content, the design of courses and, perhaps most pedagogically significantly, the nature of communication. The discussion board is the ubiquitous communication tool within these OLEs and hence significantly shapes the kind of communication that takes place. In light of this, the degree to which a successful community of inquiry can be facilitated through the use of discussion boards is examined and compared to the possibilities afforded by weblogs in the same role. Weblogs, it is argued, offer new opportunities in the development of social, cognitive and teacher presence online and should be considered in the development of or alongside established OLEs.

Elearning: 40 years of evolution?

Cun-ent rhetoric around the use of 'eLearning' in Higher Education relates particularly to Internet-based flexible eLearning programs that focus on sustaining particular communities of practice. In this paper we argue that this contempormy view of what eLearning comprises arises from a lack of historical perspective on what the focus of educational eLearning programs has been over the past 40 years. Contemporary descriptions of eLearning as a 'new mode of learning' are fallacious and ignore its 40-year evolution from 1: 1 localised didactic models (both constmctivist and behaviourist) to many-to-many distributed social-constmctivist learning models. In addition, the historic divide between Education and Training has led to both the concurrent development of different notions, foci, and labels for technology-enhanced learning in different contexts and situations, and different conceptual origins arising in acquisitive and participatory learning metaphors. We argue that a more inclusive and historically aware conceptual framework is needed to be able to accurately describe what the full repertoire 'eLearning' really embraces

Communities of enterprise: SMEs, ICT and regional development

Many regional economies have pursued a strategy of stimulating the development of regional clusters. Such clusters typically include small and medium enterprises (SMEs) as a core component of those economies. Effective cluster development in that context depends on SMEs sharing knowledge and generating innovation. ICT networks can be an important resource for this sharing and innovation. This paper proposes the concept of ‘Communities of Enterprise’ to conceptualise the relationships and communication patterns used in cluster development. This concept builds on theoretical understandings of information systems, clustering and regional development. The value creation potential of Communities of Enterprise, supported by ICTs is substantial, but only when the socioeconomic elements of regional clusters are understood. The Community of Enterprise approach addresses the fact that without an industry focus it can be difficult to engage and link SMEs from different industries, although this is where the greatest potential for value creation in regional clusters is to be found. This paper concludes by considering the relevance of Communities of Enterprise for understanding and researching eCluster development in the Australian regional context.