2,348 research outputs found
Firewatch: Use of Sattelite Imagery by Remote\ud Communities in Northern Australia for Fire Risk\ud Communications.
This paper presents the contextual background and early findings from a new research project funded by the Australian Research Council titled Using community engagement and enhanced visual information to promote FireWatch satellite communications as a support for collaborative decision-making. FireWatch (provided by Landgate in Western Australia) is an internet-based public information service based on near real time satellite data showing timely information relevant to bushfire safety within Australia. However, it has been developed in a highly technical environment and is currently used chiefly by\ud
experts. This project aims to redesign FireWatch for ordinary users and to engage a remote community in Northern Australia in this process, leading to improved decision making surrounding bushfire risk
Excessive Internet Use Among Australian Children
This brief report builds upon the findings of the EU Kids Online project’s work into Excessive Internet Use among the 19,834 European children (aged 11-16) participating in that study. It compares the European data with the much smaller cohort of 300 Australian children (aged 11-16) who were researched in the parallel AU Kids Online project. In both cases the children were selected according to a random sampling strategy. The full EU Kids Online report includes the research methodology and can be accessed via: http://www2.lse.ac.uk/media@lse/research/EUKidsOnline/EU%20Kids%20II%20(2009- 11)/EUKidsOnlineIIReports/D4FullFindings.pdf The full AU Kids Online report can be accessed via: http://cultural-science.org/journal/index.php/culturalscience/article/view/49/129 The EU Kids Online Excessive Internet Use report can be found at http://www2.lse.ac.uk/media@lse/research/EUKidsOnline/EU%20Kids%20Online%20report s.aspx Its authors are David Šmahel (Masaryk University, Czech Republic); Ellen Helsper (London School of Economics, UK); Lelia Green (Edith Cowan University, Australia); Veronika Kalmus (University of Tartu, Estonia); Lukas Blinka (Masaryk University, Czech Republic) and Kjartan Ólafsson (University of Akureyri, Iceland and Masaryk University, Czech Republic). The EU Kids Online Excessive Internet Report builds upon the work of the ‘EU Kids Online’ network funded by the EC (DG Information Society) Safer Internet plus Programme (project code SIP-KEP-321803); see www.eukidsonline.net. The parallel Australian research is funded by the ARC Centre of Excellence for Creative Industries and Innovation. This report draws upon the EU Kids Online Excessive Internet Use report, and upon the research of the authors acknowledged above
0-8: Young children\u27s Internet use
Internet participation, by young children (0-8) is increasing world-wide. Tweens (9-12 year olds) usage patterns now resemble of those of teenagers 5 to 6 years ago, and younger schoolaged children’s usage is increasing to the equivalent of tweens. Pre-schoolers are also going online at ever-increasing rates. This paper reports on evidence assembled in an international network of Internet researchers about young children under 9 and their increasing engagement with the Internet. The increase in children’s (0-8) Internet participation indicates certain trends and usage patterns that warrant further attention by researchers, educators and policy makers. Primary school aged children under the age of 9 are visiting ‘virtual worlds’—Web sites such as Minecraft, Club Penguin and Webkinz—that have components of social networking (Bauman & Tantum, 2009; Gee 2013; Tuukkanen et al, 2012), as well as joining 13+ social network sites such as Facebook (.Young Children, 2012). These under-agers are, as a result of youth and inexperience, less likely to have the digital skills needed to negotiate these sites safely (Livingstone et al, 2011). The increasing popularity of touch screen devices (iPads, smartphones) with pre-schoolers is also contributing to the increase in young children accessing the Internet (Brouwer et al, 2011; Verenikina et al, 2001), yet contemporary paediatric advice is to heavily restrict screen time for young children (eg. Sigman, 2012). It is unclear whether such advice accounts for the opportunities inherent in interactive play technologies. To date, little is known about the benefits and opportunities, or the risks and challenges, of children’s internet use in the 0-8 year old age group. Most research has concentrated on older children, partly because the primary concern to date has been around teenagers and partly because there are many more methodological, cost and ethical issues associated with researching younger children. From what we do know about younger children’s increased internet activity, however, it is becomming apparent that more research is needed
Are we asking the right questions to people with Achilles tendinopathy? The best questions to distinguish mild versus severe disability to improve your clinical management
Objective: Determine the capacity of individual items on the Tendinopathy Severity Assessment – Achilles (TENDINS-A), Foot and Ankle Outcome Score (FAOS), and Victorian Institute of Sports Assessment – Achilles (VISA-A) to differentiate patients with mild and severe tendon-related disability in order to provide clinicians the best questions when they are consulting patients with Achilles tendinopathy. Design: Cross-sectional. Participants: Seventy participants with Achilles tendinopathy (61.4% mid-portion only, 31.4% insertional only, 7.2% both). Outcome measures: The discrimination index was determined for each TENDINS-A, FAOS, and VISA-A item to determine if items could discriminate between mild and severe disability. A Guttman analysis for polytomous items was conducted. Results: All 62 tems from the TENDINS-A, FAOS, and VISA-A were ranked with the best items relating to pain with physical tendon loading, time for pain to settle following aggravating activities and time for the tendon to ‘warm-up’ following inactivity. Conclusions: Pain with loading the Achilles tendon, time for pain to settle following aggravating activity, as well as time taken for the tendon symptoms to subside after prolonged sitting or sleeping are the best questions indicative of the severity of disability in patients with Achilles tendinopathy. These questions can assist clinicians with assessing baseline severity and monitoring treatment response.</p
Are we asking the right questions to people with Achilles tendinopathy? The best questions to distinguish mild versus severe disability to improve your clinical management
Objective: Determine the capacity of individual items on the Tendinopathy Severity Assessment – Achilles (TENDINS-A), Foot and Ankle Outcome Score (FAOS), and Victorian Institute of Sports Assessment – Achilles (VISA-A) to differentiate patients with mild and severe tendon-related disability in order to provide clinicians the best questions when they are consulting patients with Achilles tendinopathy. Design: Cross-sectional. Participants: Seventy participants with Achilles tendinopathy (61.4% mid-portion only, 31.4% insertional only, 7.2% both). Outcome measures: The discrimination index was determined for each TENDINS-A, FAOS, and VISA-A item to determine if items could discriminate between mild and severe disability. A Guttman analysis for polytomous items was conducted. Results: All 62 tems from the TENDINS-A, FAOS, and VISA-A were ranked with the best items relating to pain with physical tendon loading, time for pain to settle following aggravating activities and time for the tendon to ‘warm-up’ following inactivity. Conclusions: Pain with loading the Achilles tendon, time for pain to settle following aggravating activity, as well as time taken for the tendon symptoms to subside after prolonged sitting or sleeping are the best questions indicative of the severity of disability in patients with Achilles tendinopathy. These questions can assist clinicians with assessing baseline severity and monitoring treatment response.</p
Risks and safety for Australian children on the internet
This report presents the AU findings for research in Australia which parallels the EU Kids Online project (see www.eukidsonline.net). Specifically, it includes selected findings, calculated and interpreted for Australia only, but with some comparisons made with the survey data and analysis reported in Livingstone, S., Haddon, L., Görzig, A., and Ólafsson, K. (2011). Risks and safety on the internet: The perspective of European children. Full Findings. LSE, London: EU Kids Online, and comparisons with some country reports of the 25 nations participating in EU Kids Online II. The Australian research was funded by the ARC Centre of Excellence for Creative Industries and Innovation in 2010 and involved 400 children and their families, a smaller sample than the 1,000 families per country in the other 25 nations. The fieldwork used the EU Kids Online surveys and protocols, but was conducted about 6 months later than in Europe
Short-term memory for pictures seen once or twice
The present study is concerned with the effects of exposure time, repetition, spacing and lag on old/new recognition memory for generic visual scenes presented in a RSVP paradigm. Early memory studies with verbal material found that knowledge of total exposure time at study is sufficient to accurately predict memory performance at test (the Total Time Hypothesis), irrespective of number of repetitions, spacing or lag. However, other studies have disputed such simple dependence of memory strength on total study time, demonstrating super-additive facilitatory effects of spacing and lag, as well as inhibitory effects, such as the Ranschburg effect, Repetition Blindness and the Attentional Blink. In the experimental conditions of the present study we find no evidence of either facilitatory or inhibitory effects: recognition memory for pictures in RSVP supports the Total Time Hypothesis. The data are consistent with an Unequal-Variance Signal Detection Theory model of memory that assumes the average strength and the variance of the familiarity of pictures both increase with total study time. The main conclusion is that the growth of visual scene familiarity with temporal exposure and repetition is a stochastically independent process
Constraining the long-term evolution of the slip rate for a major extensional fault system in the central Aegean, Greece, using thermochronology
The brittle/ductile transition is a major rheologic boundary in the crust yet little is known about how or if rates of tectonic processes are influenced by this boundary. In this study we examine the slip history of the large-scale Naxos/Paros extensional fault system (NPEFS), Cyclades, Greece, by comparing published slip rates for the ductile crust with new thermochronological constraints on slip rates in the brittle regime. Based on apatite and zircon fission-track (AFT and ZFT) and (U–Th)/He dating we observe variable slip rates across the brittle/ductile transition on Naxos. ZFT and AFT ages range from 11.8 ± 0.8 to 9.7 ± 0.8 Ma and 11.2 ± 1.6 to 8.2 ± 1.2 Ma and (U–Th)/He zircon and apatite ages are between 10.4 ± 0.4 to 9.2 ± 0.3 Ma and 10.7 ± 1.0 to 8.9 ± 0.6 Ma, respectively. On Paros, ZFT and AFT ages range from 13.1 ± 1.4 Ma to 11.1 ± 1.0 Ma and 12.7 ± 2.8 Ma to 10.5 ± 2.0 Ma while the (U–Th)/He zircon ages are slightly younger between 8.3 ± 0.4 Ma and 9.8 ± 0.3 Ma. All ages consistently decrease northwards in the direction of hanging wall transport. Most of our new thermochronological results and associated thermal modeling more strongly support the scenario of an identical fault dip and a constant or slightly accelerating slip rate of 6–8 km Myr− 1 on the NPEFS across the brittle/ductile transition. Even the intrusion of a large granodiorite body into the narrowing fault zone at 12 Ma on Naxos does not seem to have affected the thermal structure of the area in a way that would significantly disturb the slip rate. The data also show that the NPEFS accomplished a minimum total offset of 50 km between 16 and 8 Ma
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