7,057 research outputs found
Understanding the relative generosity of government financial support for families with children
The principal of horizontal equity can be interpreted as requiring that households with the same pre-transfer incomes and the same consumption needs should receive the same post-transfer incomes. We argue the generosity of government financial support to families with children should be analysed with respect to such a baseline. Although not without problems, equivalence scales form an important part of such a procedure. The comparison of financial support to families with children with a corresponding equivalence scale, both over time and between countries, should give a more accurate picture of generosity than comparisons of cash values alone. We discuss potential advantages and drawbacks of such comparisons, illustrating with comparisons of the US and UK systems. The main drawback is that we can only evaluate the generosity of support for children relative to that for adults. With this restriction, horizontal equity is more likely to be achieved for couples with 1 child than for those with 2 children. For some groups, the US is more generous to children (relative to adults) than the UK, but this difference is partly generated by the US system being less generous to childless households than the UK.
An assessment of base load concentrating solar thermal power generation for New Zealand
With increasing pressure being placed on traditional energy sources, both in terms of supply and also regulatory, there is an increasing need to explore alternative generation technologies. In global terms, solar energy has the potential to make a significant contribution to worldwide energy demands in the future. This study examines recent developments in the emerging field of concentrating solar thermal power generation and explores the potential for base load electricity generation using this technology in New Zealand
Does a Novice Technician Produce Results Similar to That of an Experienced DXA Technician When Assessing Body Composition and Bone Mineral Density?
Dual energy X-ray absorptiometry is a commonly used clinical assessment tool for body composition and bone mineral density, which is gaining popularity in athletic cohorts. Results from body composition scans are useful for athletic populations to track training and nutritional interventions, whilst bone mineral density scans are valuable for athletes at risk of developing stress fractures due to low bone mineral density. However, no research has ascertained if a novice technician (accredited but not experienced) could produce similar results to an experienced technician. Two groups of recreational athletes were scanned, one by an experienced technician, one by a novice technician. All participants were scanned twice with repositioning between scans. The experienced technician\u27s reliability (ICC 0.989 - 0.998, percentage change in mean -0.01 - 0.10), precision (typical error as CV% 0.01 to 0.47. standard error of measurement percentage 0.61% - 1.39%) and sensitivity to change (smallest real difference percentage 1.70% - 3.85%) were similar, however superior, to those of the novice technician. The novice technician results were: reliability (ICC 0.985 - 0.997, percentage change in mean -0.03 - 0.23), precision (typical error as CV% 0.03 - 0.75%, standard error of measurement percentage 1.06% - 2.12%) and sensitivity to change (smallest real difference percentage 2.73% - 5.86%). Extensive experience whilst valuable is not a necessary requirement to produce quality results when undertaking whole body dual energy X-ray absorptiometry scanning
Performance of a building integrated solar combisystem
Solar combisystems providing both water and space heating to buildings are becoming commonplace in European and North American locations. However, the use of these systems in Australia and New Zealand is still in its infancy. While significant work has been undertaken to characterise the performance of these systems in northern hemisphere locations, this does not necessarily reflect their performance in Australia or New Zealand. This work examines the performance of solar combisystems utilising TRNSYS and F-chart simulations of an integrated solar thermal combisystem installed in a single storey detached dwelling under typical Australian and New Zealand climatic conditions. In doing this, it shows that there is significant scope for increased use of solar combisystems in the cooler climate regions of Australia and New Zealand
Lifetime prevalence of non-melanoma and melanoma skin cancer in Australian recreational and competitive surfers
Background/Purpose SurďŹng is one of the most popular outdoor aquatic activities in Australia with an estimated 2.7 million recreational surfers; however, Australia has long been recognized as having the highest incidence of melanoma in the world, and it is the most common type of cancer in young Australians. The aim of this study was to investigate the lifetime prevalence of non-mela- noma [basal cell carcinoma (BCC), squamous cell carcinoma (SCC)] and melanoma skin cancers in Australian recreational and competitive surfers.
Methods Australian surfers were invited to complete an online surveillance survey to determine the lifetime prevalence of non-melanoma and melanoma skin cancers.
Results A total of 1348 surfers (56.9% recreational) participated in this study, of which 184 surfers reported a skin cancer (competitive n = 96, recreational n = 87). Of non-melanoma and melanoma cancers reported, BCC was the most common (6.8%), followed by melanoma (1.4%) and SCC (0.6%). The relative risk was higher (P \u3c 0.001) in competitive vs. recreational surfers [OR 1.74 (CI 1.28â2.31)]. There was a higher (P \u3c 0.05) number of skin cancers reported on the face (23.5%), back (16.4%) and arms (12.4%). There were signiďŹcant trends (P \u3c 0.001) in reported skin cancers between competitive and recreational surfers, as well as signiďŹcantly (P \u3c 0.001) more skin cancers reported in males (14.6%) than females (9.4%).
Conclusion Based upon these ďŹndings, individuals who surf are advised to regularly uti- lize sun protection strategies (avoid peak ultraviolet radiation (10 amâ 3 pm), rashvest, hat and sunscreen) and primary care physicians are rec- ommended to regularly screen their patients who surf
Epidemiology of Acute Injuries in Surfing: Type, Location, Mechanism, Severity, and Incidence: A Systematic Review
Prospective and retrospective studies have examined traumatic injuries within competitive and recreational surfers worldwide using online surveys and health care facility (HCF; e.g., hospital, emergency department, medical record) data. However, few studies have provided a synthesis of all available literature. The purpose of this study was to obtain, critique and synthesise all literature specific to acute surfing injuries, and evaluate differences in injury type, mechanism and location between HCF and survey data. A systematic literature review design was used to identify relevant articles from three major databases. Peer-reviewed epidemiological studies of musculoskeletal surfing injuries were included. A modified AXIS tool was used for critical appraisal, and objective data was extracted and synthesized by lead researchers. Overall frequencies for injury location, type and mechanism were calculated from raw injury data. A total of 19 cross-sectional articles of fair to good quality (Modified AXIS 54.2–83.3%) were included in this study; 17 were National Health and Medical Research Council (NHMRC) level III-2 (retrospective) and two were level II (prospective). Articles examined competitive, recreational and combined populations. Injury data from Australia, Brazil, UK, USA, Portugal, Japan, Norway, and worldwide were represented. Skin (46.0%; HCF 50.1%, survey 43.8%) and being struck by own surfboard (38.6%; HCF 73.4%, survey 36.7%) were the most common injury type and mechanism. Head, face and neck injuries were most common in HCF (43.1%) versus lower limb injuries (36.4%) in survey data. Incidence proportion was highest in aerialists (0.48). Incidence rate (number of injuries per 1000 h) ranged from 0.74 in Australian surfers (Melbourne) to 6.6 in international contest surfers from medical record data. This review highlights the prevalence of skin, board-related, head, face and neck, and lower limb surfing injuries across available literature. Proposed use of protective equipment and foam-based surfboards in dangerous or crowded surf locations may reduce injury risk
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