14 resultados para Hylocereus undatus (Haw.) Britton

em Deakin Research Online - Australia


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<b>Objective</b><br />To evaluate, through two studies, the factor structure, inter-rater agreement, and test&ndash;retest and inter-rater reliability of the Sport Injury Rehabilitation Adherence Scale (SIRAS).<br /><br /><b>Design</b><br />Repeated measures design in both Study 1 (video evaluation) and Study 2 (clinical evaluation).<br /><br /><b>Setting</b><br />University department (Study 1) and outpatient physiotherapy department (Study 2).<br /><b><br />Participants</b><br />Sixty physiotherapists and physiotherapy students in Study 1 and 45 patients undergoing physiotherapy treatment for a musculoskeletal injury in Study 2.<br /><br /><b>Intervention</b><br />In Study 1, participants rated the adherence of a simulated videotaped patient demonstrating high, moderate and low adherence during rehabilitation. In Study 2, two physiotherapists rated the adherence of patients at two consecutive rehabilitation sessions.<br /><br /><b>Main outcome measure</b><br />The SIRAS.<br /><br /><b>Results</b><br />In Study 1, principal components analysis confirmed a single factor for the SIRAS, and inter-rater agreement values ranged from 0.87 to 0.93. In Study 2, inter-rater and test&ndash;retest reliability coefficients ranged from 0.76 [95% confidence interval (CI) 0.54 to 0.83] to 0.89 (95% CI 0.79 to 0.95), and from 0.63 (95% CI 0.36&ndash;0.82) to 0.76 (95% CI 0.55&ndash;0.88), respectively.<br /><br /><b>Conclusion</b><br />The SIRAS is a reliable measure with high inter-rater agreement when used to evaluate clinic-based adherence to physiotherapy rehabilitation for musculoskeletal injury.<br />

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This paper reports on a small-scale research inquiry, designed to support teachers in a Melbourne primary school to bring together the arts, reading and writing in their classrooms in ways that create possibilities for &quot;art-full&quot; teaching and learning. The principal, concerned by underperformance on State literacy tests of the school&rsquo;s largely working-class and NESB population, requested David Hornsby and other members of the project team from the Education Faculty at La Trobe University to offer whole-school professional development. The focus was on developing oral language as a foundation for literacy learning, enacting Britton&rsquo;s claim that &ldquo;reading and writing float on a sea of talk&rdquo;. The project team introduced the teachers to a range of innovative classroom practices for using visual and performance arts, literature, music and crafts. Drawing on video, interviews and writing samples, a number of teachers worked collaboratively with the research team to develop case studies of individual students with a range of literacy aptitudes and social skills. A key research question was: &quot;What do children take from their engagement in arts-based activities into reading of literary texts, and potentially into writing from the perspective of another character?&quot; In this paper we ponder this from three vantage points: by outlining the informing principles in our research project; confirming insights from current interdisciplinary work about children learning to see, do, act and say in play; and analysing the research data from the initial phase.<br />

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Compositional and structural changes within an electrolyte solution above an electrochemically active metal surface have been visualised using magnetic resonance imaging (MRI) for the first time. In these proof-of-concept experiments, zinc metal was galvanically corroded in a saturated lithium chloride solution. Magnetic resonance relaxation maps were taken during the corrosion process and spatial variations in both <i>T</i><sub>1</sub> and <i>T</i><sub>2</sub> relaxation times were observed to change with time. These changes were attributed to changes in the speciation of zinc ions in the electrolyte.<br />

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While Information Technology has been used to support negotiation there is little research in the domain of knowledge management in legal negotiation. In this paper we discuss the nature of negotiation knowledge and how such knowledge can be utilized to construct negotiation decision support systems. We conduct an in-depth examination of the notion of a BATNA (Best Alternative to a Negotiated Agreement) and given a useful BATNA, how we can use issue and preference elicitation and compensation and trade-off strategies to provide negotiation decision support. We conclude by indicating how current negotiation support systems can be extended to support Online Dispute Resolution and haw we can extend the Family_Winner system in light of the need to more adequately manage negotiation knowledge.<br />

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<b>Objective</b>: To investigate the temporal relationship between the monthly count of salmonellosis notifications and the monthly average temperature in New Zealand during the period 1965&ndash;2006.<br /><br /><b>Methods</b>: A negative binomial regression model was used to analyse monthly average ambient temperature and salmonellosis notifications in New Zealand between 1965 and 2006.<br /><br /><b>Results</b>: A 1&deg;C increase in monthly average ambient temperature was associated with a 15% increase in salmonellosis notifications within the same month (IRR 1.15; 95% CI 1.07 &ndash; 1.24).<br /><br /><b>Conclusion</b>: The positive association found in this study between temperature and salmonellosis notifications in New Zealand is consistent with the results of studies conducted in other countries. New Zealand is projected to experience an increase in temperature due to climate change. Therefore, all other things being equal, climate change could increase salmonellosis notifications in New Zealand.<br /><br /><b>Implications</b>: This association between temperature and salmonellosis should be considered when developing public health plans and climate change adaptation policies. Strategically, existing food safety programs to prevent salmonellosis could be intensified during warmer periods. As the association was strongest within the same month, focusing on improving food handling and storage during this time period may assist in climate change adaptation in New Zealand.<br />

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<b>Aim</b>: To investigate the spatial relationship between climate variability and cryptosporidiosis and giardiasis notifications in New Zealand between 1997 and 2006.<br /><br /><b>Methods</b>: Negative binomial regression was used to analyse spatial relationships between cryptosporidiosis and giardiasis notifications in New Zealand between 1997 and 2006, and climatological average rainfall and temperature at the Census Area Unit (CAU) level. The quality of domestic water supplies, urban-rural status and deprivation were included as covariates.<br /><br /><b>Main results</b>: Giardiasis: There was a positive association between rainfall and giardiasis and between temperature and giardiasis.<br /><br /><b>Cryptosporidiosis</b>: There was a positive association between rainfall and cryptosporidiosis and a negative association between temperature and cryptosporidiosis. The effect of rainfall was modified by the quality of the domestic water supply.<br /><br /><b>Conclusions</b>: These findings suggest that climate variability affects protozoan disease rates in New Zealand. However, predicting the effect of climate change from this study is difficult, as these results suggest that the projected increases in temperature and rainfall may have opposing effects on cryptosporidiosis rates. Nevertheless, water supply quality appeared to modify the impact of increased rainfall on cryptosporidiosis rates. This finding suggests that improving water supply quality in New Zealand could reduce vulnerability to the impact of climate change on protozoan diseases.<br />

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A recent study indicated that the water-saturated ionic liquid (IL) trihexyl(tetradecyl)phosphonium chloride ([P<sub>6,6,6,14</sub>][Cl]) provided a viable electrolyte for a Mg-air battery. However, there is limited literature on the properties of IL-water mixtures as battery electrolytes. The physical properties of [P<sub>6,6,6,14</sub>][Cl] were studied with the addition of both water and metal salts (M<sub>g</sub>Cl<sub>2</sub> and LiCl) using conductivity and self-diffusion coefficient measurements. The conductivity of the samples at low water concentrations is surprisingly enhanced by the addition of the metal salt, contrary to lithium IL electrolytes. It was also found that the conductivity of the IL was increased by an order of magnitude by saturation with water. NMR diffusion measurements were used to probe the behaviour of both the cation and the water in the mixtures. It was found that the addition of metal salts to the water-saturated [P<sub>6,6,6,14</sub>][Cl] did not affect the transport properties of the water or cation.<br />

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Individuals infected with mycobacteria are likely to experience episodes of concurrent infections with unrelated respiratory pathogens, including the seasonal or pandemic circulating influenza A virus strains. We analyzed the impact of influenza A virus and mycobacterial respiratory coinfection on the development of CD8 T cell responses to each pathogen. Coinfected mice exhibited reduced frequency and numbers of CD8 T cells specific to Mycobacterium bovis bacille Calmette-Gu&eacute;rin (BCG) in the lungs, and the IFN-&gamma; CD8 T cell response to BCG-encoded OVA was decreased in the lungs of coinfected mice, when compared with mice infected with BCG alone. Moreover, after 2 wk of infection, mice coinfected with both pathogens showed a significant increase in the number of mycobacteria present in the lung compared with mice infected with BCG only. Following adoptive transfer into coinfected mice, transgenic CD8 T cells specific for OVA257&ndash;264 failed to proliferate as extensively in the mediastinal lymph nodes as in mice infected only with BCG-OVA. Also noted was a reduction in the proliferation of BCG-specific CD4 transgenic T cells in mice coinfected with influenza compared with mice infected with BCG alone. Furthermore, phenotypic analysis of CD11c+ dendritic cells from mediastinal lymph nodes of the infected mice showed that coinfection was associated with decreased surface expression of MHC class II and class I. Thus, concurrent pulmonary infection with influenza A virus is associated with decreased MHC expression on dendritic cells, reduced activation of BCG-specific CD4 and CD8 T cells, and impaired clearance of mycobacteria.

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Tuberculosis remains a global health problem, in part due to failure of the currently available vaccine, BCG, to protect adults against pulmonary forms of the disease. We explored the impact of pulmonary delivery of recombinant influenza A viruses (rIAVs) on the induction of Mycobacterium tuberculosis (M. tuberculosis)-specific CD4(+) and CD8(+) T-cell responses and the resultant protection against M. tuberculosis infection in C57BL/6 mice. Intranasal infection with rIAVs expressing a CD4(+) T-cell epitope from the Ag85B protein (PR8.p25) or CD8(+) T-cell epitope from the TB10.4 protein (PR8.TB10.4) generated strong T-cell responses to the M. tuberculosis-specific epitopes in the lung that persisted long after the rIAVs were cleared. Infection with PR8.p25 conferred protection against subsequent M. tuberculosis challenge in the lung, and this was associated with increased levels of poly-functional CD4(+) T cells at the time of challenge. By contrast, infection with PR8.TB10.4 did not induce protection despite the presence of IFN-&gamma;-producing M. tuberculosis-specific CD8(+) T cells in the lung at the time of challenge and during infection. Therefore, the induction of pulmonary M. tuberculosis epitope-specific CD4(+), but not CD8(+) T cells, is essential for protection against acute M. tuberculosis infection in the lung.

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Both James Britton and James Moffett were keynote speakers at the Sydney International Federation for the Teaching of English conference in 1980 - a fact reflective of the wide recognition and acceptance of their work and influence throughout Australia by that time. In Victoria, Moffett's writings became known initially through teacher education, in particular at the University of Melbourne and the State College of Victoria, Rusden, then through the visits and writing of figures from the London Institute and others, and through the State and national English teaching association, the Australian Association for the Teaching of English. In the 1970s, Moffett's influence in Victoria came rather through the mix of his vision and writing, both theoretical and practical, in conjunction with others in Australia and elsewhere. This paper takes two separate but related sites or moments in English education in the 1970s in the Australian city of Melbourne, Victoria, as instances of the permeating influence of Moffett's work - in conjunction with leading figures from the London School associated with the 'New' English' - on education discourses and practice in that State's English curriculum history. It concludes with a consideration of the ways in which Moffett's work might still act as a 'rallying call' today.

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The production of heat, i.e., thermogenesis, is a significant component of the metabolic rate, which in turn affects weight gain and health. Thermogenesis is linked to physical activity (PA) level. However, it is not known whether intrinsic exercise capacity, aging, and long-term voluntary running affect core body temperature. Here we use rat models selectively bred to differ in maximal treadmill endurance running capacity (Low capacity runners, LCR and High capacity Runners, HCR), that as adults are divergent for aerobic exercise capacity, aging, and metabolic disease risk to study the connection between PA and body temperature. Ten high capacity runner (HCR) and ten low capacity runner (LCR) female rats were studied between 9 and 21 months of age. Rectal body temperature of HCR and LCR rats was measured before and after 1-year voluntary running/control intervention to explore the effects of aging and PA. Also, we determined whether injected glucose and spontaneous activity affect the body temperature differently between LCR and HCR rats at 9 vs. 21 months of age. HCRs had on average 1.3&deg;C higher body temperature than LCRs (p &lt; 0.001). Aging decreased the body temperature level of HCRs to similar levels with LCRs. The opportunity to run voluntarily had a significant impact on the body temperature of HCRs (p &lt; 0.001) allowing them to maintain body temperature at a similar level as when at younger age. Compared to LCRs, HCRs were spontaneously more active, had higher relative gastrocnemius muscle mass and higher UCP2, PGC-1&alpha;, cyt c, and OXPHOS levels in the skeletal muscle (p &lt; 0.050). These results suggest that higher PA level together with greater relative muscle mass and higher mitochondrial content/function contribute to the accumulation of heat in the HCRs. Interestingly, neither aging nor voluntary training had a significant impact on core body temperature of LCRs. However, glucose injection resulted in a lowering of the body temperature of LCRs (p &lt; 0.050), but not that of HCRs. In conclusion, rats born with high intrinsic capacity for aerobic exercise and better health have higher body temperature compared to rats born with low exercise capacity and disease risk. Voluntary running allowed HCRs to maintain high body temperature during aging, which suggests that high PA level was crucial in maintaining the high body temperature of HCRs.