25 resultados para Logarithmic barriers

em University of Queensland eSpace - Australia


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Current trends in mental health services emphasize working in partnership with consumers and other government and non-government community organizations for improvement in quality of life for service users. People with a mental illness experience social exclusion, thereby limiting their ability to participate fully in community life. Occupational therapists have a substantial role to play in helping service users to overcome barriers to their community inclusion. Partnerships need to be formed to increase access to community resources and participation in activities that are enjoyed by other members of the community. Such partnerships have a health promotion emphasis and foster the relationship between mental-health services and the wider community, thus shifting the focus from direct occupational therapy service delivery to community-based rehabilitation interventions.This article describes the development, implementation and evaluation of an Australian healthy lifestyle course devised to meet the identified rehabilitation goals of people with mental illness to lose weight, get fit, commence vocational study and get a job. The course was run in partnership between mental health consumers, occupational therapists from the St George Mental Health Rehabilitation Service and staff and students from the Sutherland College of Technical and Further Education.

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Primary objective: To test whether people with cognitive-linguistic impairments following traumatic brain injury could learn to use the Internet using specialized training materials. Research design: Pre-post test design. Methods and procedures: Seven participants were each matched with a volunteer tutor. Basic Internet skills were taught over six lessons using a tutor's manual and a student manual. Instructions used simple text and graphics based on Microsoft Internet Explorer 5.5. Students underwent Internet skills assessments and interviews pre- and post-training. Tutors completed a post-training questionnaire. Main outcomes and results: Six of seven participants reached moderate-to-high degrees of independence. Literacy impairment was an expected training barrier; however, cognitive impairments affecting concentration, memory and motivation were more significant. Conclusions: Findings suggest that people with cognitive-linguistic impairments can learn Internet skills using specialized training materials. Participants and their carers also reported positive outcomes beyond the acquisition of Internet skills.

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Objective: The aim of this paper is to examine some of the factors that facilitate and hinder interagency collaboration between child protection services and mental health services in cases where there is a parent with a mental illness and there are protection concerns for the child(ren). The paper reports on agency practices, worker attitudes and experiences, and barriers to effective collaboration. Method: A self-administered, cross-sectional survey was developed and distributed via direct mail or via line supervisors to workers in statutory child protection services, adult mental health services, child and youth mental health services, and Suspected Child Abuse and Neglect (SCAN) Teams. There were 232 completed questionnaires returned, with an overall response rate of 21%. Thirty-eight percent of respondents were statutory child protection workers. 39% were adult mental health workers, 16% were child and youth mental health workers, and 4% were SCAN Team medical officers (with 3% missing data). Results: Analysis revealed that workers were engaging in a moderate amount of interagency contact, but that they were unhappy with the support provided by their agency. Principle components analysis and multivariate analysis of variance (MANOVA) on items assessing attitudes toward other workers identified four factors, which differed in rates of endorsement: inadequate training, positive regard for child protection workers, positive regard for mental health workers, and mutual mistrust (from highest to lowest level of endorsement). The same procedure identified the relative endorsement of five factors extracted from items about potential barriers: inadequate resources, confidentiality, gaps in interagency processes, unrealistic expectations, and professional knowledge domains and boundaries. Conclusions: Mental health and child protection professionals believe that collaborative practice is necessary; however, their efforts are hindered by a lack of supportive structures and practices at the organizational level. (c) 2005 Published by Elsevier Ltd.

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The chromophore of the red fluorescent protein DsRed contains an acylimine substituent to a GFP-like chromophore structure. The acylimine is formed from the trans peptide linkage between residues F65 and Q66 in immature DsRed, but has a cis configuration in the mature protein. The relationship between acylimine formation and trans–cis isomerization is unresolved. We have calculated bond rotation profiles for models of mature and immature DsRed chromophores using B3LYP DFT. The isomerization barrier is substantially reduced in acylimine-substituted models, providing prima facie evidence that acylimine formation precedes trans–cis isomerization in DsRed chromophores.

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Studies suggest that enjoyment, perceived benefits and perceived barriers may be important mediators of physical activity. However, the psychometric properties of these scales have not been assessed using Rasch modeling. The purpose of this study was to use Rasch modeling to evaluate the properties of three scales commonly used in physical activity studies: the Physical Activity Enjoyment Scale, the Benefits of Physical Activity Scale and the Barriers to Physical Activity Scale. The scales were administered to 378 healthy adults, aged 25–75 years (50% women, 62% Whites), at the baseline assessment for a lifestyle physical activity intervention trial. The ConQuest software was used to assess model fit, item difficulty, item functioning and standard error of measurement. For all scales, the partial credit model fit the data. Item content of one scale did not adequately cover all respondents. Response options of each scale were not targeting respondents appropriately, and standard error of measurement varied across the total score continuum of each scale. These findings indicate that each scale's effectiveness at detecting differences among individuals may be limited unless changes in scale content and response format are made.

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Purpose. This article explores the experiences of 26 assistive technology (AT) users having a range of physical impairments as they optimized their use of technology in the workplace. Method. A qualitative research design was employed using in-depth, open-ended interviews and observations of AT users in the workplace. Results. Participants identified many factors that limited their use of technology such as discomfort and pain, limited knowledge of the technology's features, and the complexity of the technology. The amount of time required for training, limited work time available for mastery, cost of training and limitations of the training provided, resulted in an over-reliance on trial and error and informal support networks and a sense of isolation. AT users enhanced their use of technology by addressing the ergonomics of the workstation and customizing the technology to address individual needs and strategies. Other key strategies included tailored training and learning support as well as opportunities to practice using the technology and explore its features away from work demands. Conclusions. This research identified structures important for effective AT use in the workplace which need to be put in place to ensure that AT users are able to master and optimize their use of technology.

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The conference aimed to provide a forum for the exploration of barriers, borders and boundaries in Australian archaeological methods and practice, frameworks of interpretation and epistemological structures. Sessions were designed to have broad appeal to a range of archaeological stakeholders including academics, consultants, Indigenous peoples, students, cultural heritage managers and policy formulators.