381 research outputs found
Cardiac services for care of suspected acute coronary syndromes in Australia and New Zealand hospitals
No full textAbstract 18319Isuru Ranasinghe, Carolyn Astley, Bernadette Aliprandi-Costa, Derek Chew, Christopher J Ellis, Christopher J Hammett, Tom G Briffa, Tegwen E Howell, Karen J Lintern, Hella Parker, Bridie Carr, Greg D Gamble, Rosanna Tavella, Julie Redfern, John French, David Briege
Accuracy of Orbscan II slit-scanning elevation topography
No full textPurpose: To establish the accuracy of Orbscan II (Orbtek Inc.) slit-scanning elevation\ud
topography in analyzing the anterior surface of complex test objects.\ud
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Setting: Discipline of Ophthalmology, University of Auckland, Faculty of Medical\ud
and Health Sciences, Auckland, New Zealand.\ud
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Methods: Six test objects were created from 2 materials: standard calibration poly(methyl methacrylate) (PMMA) (Orbtek Inc.) and a research PMMA material. The test objects were produced with spherical (radii of curvature 6.00 mm, 7.67 mm, and 8.88 mm), aspherical (apical radius 7.67, eccentricity 0.5, Q _0.25), and toroidal (7.67/7.92 mm radii of curvature) surfaces. The accuracy of the test surfaces was established by Form Talysurf Analysis. A single calibrated Orbscan II device was used to obtain 20 separate anterior elevation maps of each test object. The data obtained from Orbscan II, at 0.2 mm intervals along the chosen meridian, were directly compared with the Talysurf values for each test surface.\ud
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Results: Orbscan II measurements of all test objects were statistically significantly\ud
different from the Talysurf values (P _ .001). The test objects produced from standard calibration material were more accurately measured by Orbscan II than the objects produced from the research material. Data obtained by Orbscan II from the central 3.5 mm of all test objects were more accurate than peripheral data when compared with the Talysurf values (P _ .001).\ud
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Conclusions: Orbscan II anterior surface elevation measurements differed significantly\ud
from Form Talysurf Analysis of complex test surfaces. However, the magnitude of the errors in the measurement of standard test objects was small, less than 0.20 _m centrally and 0.70 _m peripherally. Clinically, if similar accuracy of measurement is confirmed in the human eye, anterior surface elevation maps can be considered accurate representations of corneal shape
Rounding, but not randomization method, non-normality, or correlation, affected baseline P-value distributions in randomized trials
No full textCorrigendum to Rounding, but not randomization method, non-normality, or correlation, affected baseline P-value distributions in randomized trials. J Clin Epidemiol 2019;110:50-62 (Journal of Clinical Epidemiology (2019) 110 (50–62), (S0895435618310321), (10.1016/j.jclinepi.2019.03.001)) M. J. Bolland, G. D. Gamble, A. Avenell, A. Grey, 2020, vol. 126, p. 226. Journal of Clinical Epidemiology Corrigendum: The authors regret that during the final manuscript sub-mission we provided an incorrect high resolution version of Figure 7. We mistakenly provided a second copy of Appendix Figure 8 rather than the correct figure, which we have now provided. We would like to apologise for any inconvenience caused. Journal of Clinical Epidemiology (2020) Acknowledgements: The authors acknowledge the contribution of Professor Thomas Lumley who provided expert guidance in using the area under the curve of the cumulative distribution function of the baseline p-values for these analyses No specific funding was received for this study. MB receives salary support from the Health Research Council of New Zealand. The Health Services Research Unit is funded by the Chief Scientist Office of the Scottish Government Health and Social Care Directorates.The funders had no role in the study design; collection, analysis, and interpretation of the data; writing of the report; and in the decision to submit the paper for publicationPeer reviewe
"Test me and treat me" - attitudes to vitamin D deficiency and supplementation: a qualitative study
No full text© 2015 BMJ Open, "Test me and treat me"-attitudes to vitamin D deficiency and supplementation: a qualitative study. This manuscript version is made available under the Creative Commons Attribution Licens
Calcium supplements and cancer risk : a meta-analysis of randomised controlled trials
No full textPeer reviewe
Author response: Systematic review and statistical analysis of the integrity of 33 randomized controlled trials
No full textPerceived alteration by the customer and consumer of the aroma profile in dry kibbled cat food using odor masking agents
No full textvi, 38 p.In the pet food industry, at times products are described as having a fishy or
intense aroma. To appeal to the pet owner, the customer, it is desirable to control aroma
in pet food products. In this study, three masking agents, compounds "a", "b" and "c"
were put in the digest (flavor and fat externally added to food) and coated on the kibble
during the enrobing process, as well as added to the internal fat in the extrusion process. With both processes a reduction in intensity of specific aroma compounds was detected by a Chern Sensor which utilizes mass spectrometry (MS) as a detector. All diet samples
were also evaluated by a human sensory panel and fed to nineteen cats in a palatability
test. The human sensory panel was unable to detect a significant difference. The cats
were unable to detect a difference between the samples with masking agents and the
control. Thus although compounds "a," "b," and "c" are able to alter the aroma profile of
dry cat food, it is not noticeable enough. Ultimately more research must be done to
determine if the masking agents could be used to create a product where a customer will
notice a difference in the odor without having the original product for comparison.Iams Company Research and Development. Proctor and Gamble Pet Health and Nutrition. Lewisburg, Ohio
Characteristics at randomization in the entire cohort, and in subgroups defined by treatment allocation and by use of personal calcium or vitamin D.
No full text<p>Data are mean (SD) or %. HRT- hormone status. CaD- randomized to calcium plus vitamin D</p><p><sup>a</sup> Women not using personal calcium or vitamin D supplements at randomization</p><p><sup>b</sup> Women from the placebo group who were either using both personal calcium and vitamin D or were not using either of these supplements at randomization.</p><p><sup>c</sup> all data are at randomization except for medical history and smoking status which are at entry to Women’s Health Initiative clinical trials programme. 91% of participants in the calcium plus vitamin D trial entered the trial at their first annual visit in the clinical trials programme and the remainder at their second annual visit.</p><p>Characteristics at randomization in the entire cohort, and in subgroups defined by treatment allocation and by use of personal calcium or vitamin D.</p
Classification of partitions of all triples on ten points into copies of Fano and affine planes
No full textWe continue our study of partitions of the full set of fenced(frac(v, 3)) triples chosen from a v-set into copies of the Fano plane PG (2, 2) (Fano partitions) or copies of the affine plane AG (2, 3) (affine partitions) or into copies of both of these planes (mixed partitions). The smallest cases for which such partitions can occur are v = 8 where Fano partitions exist, v = 9 where affine partitions exist, and v = 10 where both affine and mixed partitions exist. The Fano partitions for v = 8 and the affine partitions for v = 9 and 10 have been fully classified, into 11, two and 77 isomorphism classes, respectively. Here we classify (1) the sets of i pairwise disjoint affine planes for i = 1, ..., 7, and (2) the mixed partitions for v = 10 into their 22 isomorphism classes. We consider the ways in which these partitions relate to the large sets of AG (2, 3). Crown Copyrigh
Why People Gamble: A Qualitative Study of Four New Zealand Ethnic Groups
No full textIn multicultural countries such as New Zealand, it is particularly important that gambling research take into account possible cultural differences. Many New Zealanders come from cultures that do not have a history of gambling, including the Mäori (New Zealand indigenous people), Pacific Islanders, and recent migrants. Little research has examined the reasons why people start and continue to gamble, especially among different ethnic groups. This research project thus aimed to develop a framework to explain how environmental, cultural, and social factors interact with personal attributes to determine gambling behaviors. In a qualitative study, 131 people broadly representative of Mäori, Pacific, Asian, and Päkehä/New Zealand European groups residing in New Zealand were interviewed individually or in focus groups. They included social and problem gamblers, families of problem gamblers, and professionals. Different personal, socioeconomic, environmental, and cultural factors were identified, summarized in a developmental framework, and compared to factors found for ethnic groups in other countries. Public health policy issues were raised, including greater control of gambling promotion. © 2012 The Author(s).published_or_final_versionSpringer Open Choice, 28 May 201
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