3,078 research outputs found
Learning the language of school history: the role of linguistics in mapping the writing demands of the secondary school curriculum
This paper reports on a research study which used the tools of functional linguistics to illuminate the writing requirements of the history curriculum in the context of Australian secondary schools. It shows how the resulting linguistic description was integrated into a sequence of teaching and learning activities through collaboration between linguist specialists and content/pedagogic specialists. These activities were designed to facilitate studentsâ writing skills whilst simultaneously developing their historical knowledge. An independent evaluation of the approach pointed to positive changes in teachersâ attitudes and behaviours regarding the role of language in learning history. Equally, studentsâ writing improved, particularly in terms of its organisation and structure
Spatial fluctuations in transient creep deformation
We study the spatial fluctuations of transient creep deformation of materials
as a function of time, both by Digital Image Correlation (DIC) measurements of
paper samples and by numerical simulations of a crystal plasticity or discrete
dislocation dynamics model. This model has a jamming or yielding phase
transition, around which power-law or Andrade creep is found. During primary
creep, the relative strength of the strain rate fluctuations increases with
time in both cases - the spatially averaged creep rate obeys the Andrade law
, while the time dependence of the spatial
fluctuations of the local creep rates is given by . A similar scaling for the fluctuations is found in the logarithmic
creep regime that is typically observed for lower applied stresses. We review
briefly some classical theories of Andrade creep from the point of view of such
spatial fluctuations. We consider these phenomenological, time-dependent creep
laws in terms of a description based on a non-equilibrium phase transition
separating evolving and frozen states of the system when the externally applied
load is varied. Such an interpretation is discussed further by the data
collapse of the local deformations in the spirit of absorbing state/depinning
phase transitions, as well as deformation-deformation correlations and the
width of the cumulative strain distributions. The results are also compared
with the order parameter fluctuations observed close to the depinning
transition of the 2 Linear Interface Model or the quenched Edwards-Wilkinson
equation.Comment: 27 pages, 18 figure
Wongi mi bardup (doing it our way)
The Birthing on Noongar Boodjar project investigated the cultural birthing practices of Aboriginal women living on country (Noongar Boodjar) in an urbanised environment; and their experiences of interactions with maternal health care providers (especially midwives). The evidence from the five year study identified changes required in health systems to adequately support Aboriginal women and their families during the significant cultural and life event of childbearing.
This paper sets out the methodological and theoretical considerations which framed how the Birthing on Noongar Boodjar project was conducted by the Aboriginal and non-Aboriginal investigators. We provide a brief project background before describing the Indigenous research methodologies and practices crucial to exploring the research questions, collecting data in culturally secure ways and using cultural lenses to analyze and interpret the data. The study design and results are reported in other publications
The development of aboriginal brain injury coordinator positions: A culturally secure rehabilitation service initiative as part of a clinical trial
Brain injury, resulting from stroke and traumatic brain injury, is a common occurrence in Australia, with Aboriginal people affected at a significant rate and impact felt by individuals, families and communities. Access to brain injury rehabilitation services for Aboriginal people is reported to be often limited, with very little support outside the hospital environment. Our research involving Aboriginal brain injury survivors and their families to date has revealed that people often manage âon their ownâ following such events. Following recommendations from survivors and their families, the Healing Right Way clinical trial, currently underway in Western Australia, has created the role of Aboriginal Brain Injury Coordinator (ABIC) to assist in navigating information and services, particularly after discharge from hospital. Eight positions for this role have been instigated across metropolitan and rural regions in the state. Healing Right Wayâs aim is to enhance rehabilitation services and improve quality of life for Aboriginal Australians after brain injury. The ABICâs role is to provide education, support, liaison and advocacy services to participants and their families over a six-month period, commencing soon after the participantâs stroke or injury has occurred. This paper outlines the development of this role, the partnerships involved, experiences to date and identifies some facilitators and barriers encountered that may impact the roleâs ongoing sustainability. Details of components of the planned full Process Evaluation of Healing Right Way related to the ABIC role and the partnerships surrounding it are also provided. In combination with the trialâs ultimate results, this detail will assist in future service planning and provide a model of culturally secure care for stroke and brain injury services that can also inform other sub-acute and primary care models
âIf you donât speak from the heart, the young mob arenât going to listen at allâ: An invitation for youth mental health services to engage in new ways of working
Purpose: Aboriginal and Torres Strait Islander young people are more likely to experience mental health issues or end their life by suicide than non-Aboriginal youth, but are less likely to access mental health services for support. Systemic change is required if mainstream youth mental health services are to be relevant and culturally secure for Aboriginal and Torres Strait Islander young people. Basic procedures: Building Bridges (2017-2019) is a three-year participatory action research project being conducted in partnership with the Nyoongar community and three mainstream youth mental health services in Perth, Western Australia. The project involves Nyoongar Elders and Aboriginal and Torres Strait Islander young people working directly with senior management and key staff of youth mental health services to co-design, implement and evaluate a framework for systems change. The aim of the project is to increase Aboriginal and Torres Strait Islander young peopleâs engagement with services and improve mental health outcomes for young people and their families. Main findings: This paper outlines the engagement process that underpinned the first phase of the project. Our research methods are premised by an investment in establishing safe spaces for the Elders, young people and service staff to engage in open, honest dialogue. We present two key activities that illustrate this process of building trust and deepening understanding, namely: spending time âOn Countryâ and engaging in a âstoryingâ process. Principal conclusions: Building Bridges demonstrates the centrality of trusting relationships for systemic change and the way in which meaningful engagement is at the core of both the process and the outcom
The fast and furious
Cocaine and amphetamines (âstimulantsâ) are distinct central nervous system stimulants with similar effects (Pleuvry, 2009; Holman, 1994). Cocaine is a crystalline tropane alkaloid extracted from coca leaves. Amphetamines are a subclass of phenylethylamines with primarily stimulant effects, including amphetamine, methamphetamine, methcathinone and cathinone and referred to as âamphetaminesâ in this review (Holman, 1994). MDMA (3,4-methylenedioxy-N-methamphetamine or ecstasy) is a substituted amphetamine known for its entactogenic, psychedelic, and stimulant effects (Morgan, 2000). Stimulants can produce increased wakefulness, focus and confidence, elevated mood, feelings of power, and decreased fatigue and appetite; stimulants also produce nervousness or anxiety and, in some cases, psychosis and suicidal thoughts (Holman, 1994; EMCDDA, 2007f; Hildrey et al., 2009; Pates and Riley, 2009). Although there is little evidence that stimulants cause physical dependence, tolerance may develop upon repetitive use and withdrawal may cause discomfort and depression (EMCDDA, 2007f; Pates and Riley, 2009). Users may engage in âcoke or speed bingesâ alternated with periods of withdrawal and abstinence (Beek et al., 2001)
Single Cell Analysis of Lymph Node Tissue from HIV-1 Infected Patients Reveals that the Majority of CD4<sup>+</sup> T-cells Contain One HIV-1 DNA Molecule
Genetic recombination contributes to the diversity of human immunodeficiency virus (HIV-1). Productive HIV-1 recombination is, however, dependent on both the number of HIV-1 genomes per infected cell and the genetic relationship between these viral genomes. A detailed analysis of the number of proviruses and their genetic relationship in infected cells isolated from peripheral blood and tissue compartments is therefore important for understanding HIV-1 recombination, genetic diversity and the dynamics of HIV-1 infection. To address these issues, we used a previously developed single-cell sequencing technique to quantify and genetically characterize individual HIV-1 DNA molecules from single cells in lymph node tissue and peripheral blood. Analysis of memory and naĂŻve CD4+ T cells from paired lymph node and peripheral blood samples from five untreated chronically infected patients revealed that the majority of these HIV-1-infected cells (>90%) contain only one copy of HIV-1 DNA, implying a limited potential for productive recombination in virus produced by these cells in these two compartments. Phylogenetic analysis revealed genetic similarity of HIV-1 DNA in memory and naĂŻve CD4+ T-cells from lymph node, peripheral blood and HIV-1 RNA from plasma, implying exchange of virus and/or infected cells between these compartments in untreated chronic infection
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