39 resultados para original articles

em Deakin Research Online - Australia


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Previous research which consolidates the growing body of academic literature on small and medium enterprises (SMEs) and electronic business (eBusiness) has taken the form of meta-analyses which focus on analysing adoption factors, pre-2000 articles and a small number of journals. This paper makes a valuable contribution to the analysis of SME-eBusiness research by addressing the limitations of past literature analyses because it presents an extensive literature review of 120 SME-eBusiness journal articles published between 2003 and 2006 in 53 journals. This paper is unique, when compared to meta-analyses of adoption factors, because it analyses the SME-eBusiness literature broadly on the basis of the data collection approaches used, countries and eBusiness technologies studied, and the primary research objective of each article. This approach to the analysis revealed a number of limitations in the existing research such as the tendency: to treat SMEs and eBusiness applications homogeneously rather than as highly diverse, complex entities; to repeat adoption factor studies which have now reached saturation point; and to focus on SMEs themselves without considering the complexity of relationships which many SMEs have with family, friends, other businesses and eBusiness solution providers. These limitations highlight the need for new research directions which move beyond identifying and evaluating adoption factors. The paper concludes by outlining a number of broad research directions which might help overcome the limitations with the existing body of SME-eBusiness research.

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VINCENT Buckley's Golden Builders and Other Poems (1976) is an important poetic experiment in its direct and exulted address to the city and to the sacred. The city is Melbourne in which Buckley lived, worked and wrote for forty years. In the original volume, the epigraph to the twenty-seven part sequence 'Golden Builders' is from William Blake's Jerusalem, a profound and idiosyncratic yoking together of the corporeal and the sacred

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The original DIGAMI protocol recommended using intravenous insulin to manage myocardial infarction from first presentation followed by subcutaneous insulin for 3 months in patients with diabetes. This paper describes the metabolic and cardiac outcomes and barriers to implementing a protocol designed to match the DIGAMI principles across our emergency and cardiology departments. Patients managed using the revised DIGAMI protocol achieved better blood glucose control and had fewer reinfarcts than those managed without insulin. The major barrier to using the protocol appeared to be staff fear of causing hypoglycaemia.

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Objective : This review examines original research which has investigated associations between physical activity (PA) dose (i.e. frequency, intensity and duration) and domain and depression or symptoms of depression in adults.

Methods : A search of electronic databases and authors' own bibliographic libraries was performed between 2006 and 2007 for original research articles investigating associations between PA and depression in adults. A total of 27 observational and 40 intervention studies were included.

Results : Of the studies that focused on the association between duration of PA and likelihood of depression, all five observational studies, and five of the seven intervention studies found both shorter and longer durations of PA were associated with reduced likelihood of depression. Of the studies that focused on the association between intensity of PA and likelihood of depression, four of the six observational studies found that vigorous-intensity PA was more strongly associated with decreased likelihood of depression than lower intensities. Most intervention studies showed that both intensities were effective in reducing the likelihood of depression. Two observational studies found a stronger inverse relationship of leisure-time PA with depression than PA in other domains. There is insufficient evidence regarding the importance of the PA setting on depression.

Conclusion : Although the dose and domain of physical activity varied across studies reviewed, evidence suggests that even low doses of PA may be protective against depression. Further studies examining the optimal domain of PA for reducing the likelihood of depression are needed.

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The aim of this paper is to review evidence of the effectiveness of interventions that present physical activity outcomes and potential mediators of behavioural change among 4–12-year-old children. A systematic search of electronic databases for original research articles published in peer-review journals between January 1985 and the end of June 2006 was carried out. A total of 19 studies that reported intervention effects on physical activity and mediators of behavioural change were identified. The most common mediators reported included physical activity knowledge or beliefs (11 studies); self-efficacy (8 studies); and enjoyment or preference for physical activity (6 studies). Less frequently reported mediators included attitudes, behavioural capability, intentions, outcome expectancies, social norms, social support and self-concept. Seven of the 11 interventions that reported intervention effects on knowledge/beliefs stated positive changes in this mediator. Four of the eight studies that reported intervention effects on self-efficacy had significant improvements; however, only two out of six interventions reported significant improvements in physical activity enjoyment or preference. None of the studies reviewed reported whether changes in these constructs mediated changes in children's physical activity behaviours. Although more than half of the studies reviewed reported a positive intervention effect on children's physical activity, no study carried out a mediating analysis to attempt to identify the mechanisms of change. Future research should more clearly identify the mediators of behavioural change that are being targeted and whether this explains intervention effects.

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More than a trillion of taxpayer dollars are currently being used to bail out the US banking, mortgage and car industries. This invokes an interesting connection to public relations the last time drastic US government involvement with corporations was contemplated. This pre-First World War crisis of the free enterprise system involved a deficit not of money but of favourable public opinion. The requirement was for vast amounts of public opinion and public policy work by a reported at least 1200 – what were at that time called – press agents. This was the period when public relations emerged as a fundamental plank of US and ultimately of global culture. The thesis of this article is that many aspects of the world we live in cannot be properly understood without a better analysis of the first bailout of US corporations—the public relations bailout.


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Burkard Polster and Marty Ross's 'Maths Masters' articles (previously reviewed in Vinculum) now linked with the 'Education Supplement' in The Age online are recommended to readers. Polster and Ross will be sending out e-mail alerts with a short summary of the latest article plus a link to where it is sitting on The Age online. E-mail alerts can be requested via Polster and Ross's website mathsmasters@qedcat.com

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Background
The Resident Assessment Instrument-Minimum Data Set (RAI-MDS) 2.0 is designed to collect the minimum amount of data to guide care planning and monitoring for residents in long-term care settings. These data have been used to compute indicators of care quality. Use of the quality indicators to inform quality improvement initiatives is contingent upon the validity and reliability of the indicators. The purpose of this review was to systematically examine published and grey research reports in order to assess the state of the science regarding the validity and reliability of the RAI-MDS 2.0 Quality Indicators (QIs).

Methods
We systematically reviewed the evidence for the validity and reliability of the RAI-MDS 2.0 QIs. A comprehensive literature search identified relevant original research published, in English, prior to December 2008. Fourteen articles and one report examining the validity and/or reliability of the RAI-MDS 2.0 QIs were included.

Results
The studies fell into two broad categories, those that examined individual quality indicators and those that examined multiple indicators. All studies were conducted in the United States and included from one to a total of 209 facilities. The number of residents included in the studies ranged from 109 to 5758. One study conducted under research conditions examined 38 chronic care QIs, of which strong evidence for the validity of 12 of the QIs was found. In response to these findings, the 12 QIs were recommended for public reporting purposes. However, a number of observational studies (n=13), conducted in "real world" conditions, have tested the validity and/or reliability of individual QIs, with mixed results. Ten QIs have been studied in this manner, including falls, depression, depression without treatment, urinary incontinence, urinary tract infections, weight loss, bedfast, restraint, pressure ulcer, and pain. These studies have revealed the potential for systematic bias in reporting, with under-reporting of some indicators and over-reporting of others.

Conclusion

Evidence for the reliability and validity of the RAI-MDS QIs remains inconclusive. The QIs provide a useful tool for quality monitoring and to inform quality improvement programs and initiatives. However, caution should be exercised when interpreting the QI results and other sources of evidence of the quality of care processes should be considered in conjunction with QI results.

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Background Physically inactive lifestyles and sedentary behaviors (SB) are key contributors to ill health. Although the association between SB (e.g., watching TV/using the computer) and physical health has been well documented, increasing research has focused on the possible link between SB and mental health (e.g., depression).

Purpose
This review aims to investigate the effect of SB on the risk of depression in adults.

Method A systematic search for original research articles investigating associations between SB and depression in adults was performed using the several electronic data bases.

Results A total of seven observational and four intervention studies were included in this review. All observational studies found positive associations between SB and risk of depression, while intervention studies showed contradictory results.

Conclusion
Evidence for the relationship between SB and risk of depression in adults is limited by methodological weaknesses. However, on balance, this review suggests that SB is associated with an increased risk of depression. Further studies are needed assessing different types of SB and depression; the interrelationship between physical activity, SB, and depression; causal links between SB and depression; and intervention strategies aimed at reducing SB and their effects on risk of depression.