Parental Perceptions of Water Competence and Drowning Risk for Themselves and Their Children in an Open Water Environment

Little is known about people’s perceptions of how much swimming competency is required to provide protection from drowning, especially in open water environments where most drowning incidents occurs. This study reports on parental perceptions (n = 309) of swimming competency of themselves and their children, and parents beliefs on their safety when swimming in open water. Most parents (58%) considered themselves good/very good swimmers, although more than half (55%) considered that they could swim 25 m or less. Most parents (87%) reported that their children could swim, with more than one half (52%) believing that their child’s swimming competency was good/very good, yet most (74%) considered their child could swim only 25 m or less. Most parents (59%) and almost all children (81%) had never actually swum their reported distance in open water. In spite of these low levels of competency, one half (51%) of parents thought their children were safe/very safe in open water. The implications of an overly optimistic belief in the protective value of minimal levels of swimming competency for open water safety are discussed. Further exploration of the difference between real and perceived swimming competency, especially with at-risk groups such as males, are recommended

Getting In: Safe Water Entry Competencies

In high income countries, jumping and diving into water are a small but persistent cause of death and serious injury especially among male youth and young adults. Although water entries maintain a high media profile, little is known about what entry competencies and underlying water safety knowledge youth bring to this practice. Undergraduates enrolled in aquatics (N= 76) completed a survey before attempting 7 entry jumping and diving tasks. While safety attitudes and self-reported behaviours were generally good, considerable variation in practical entry competence was evident. Most completed a deep-water compact jump (87%) and PFD jump (88%) with ease. Many completed a crouch dive (57%) and standing dive (53%) into deep water with ease, but only 33% completed a standing dive from a block/bulkhead (height) with ease. Ways of addressing weaknesses in knowledge, attitudes, and behaviours are discussed and recommendations made to enhance the teaching of safe water entry

From Swimming Skill to Water Competence: Towards a More Inclusive Drowning Prevention Future

Brenner, Moran, Stallman, Gilchrist and McVan, (2006) recommended that “swimming ability be promoted as a necessary component of water competence, but with the understanding that swimming ability alone is [often] not sufficient to prevent drowning” (p. 116). Tradition and expert opinion are no longer enough. Science can now help us select essential competencies. What does research evidence show us about the protective value of specific individual personal competencies? Since the term “water competence’’ was coined by Langendorfer and Bruya (1995) and adapted for drowning prevention by Moran (2013), it has gained in use and acceptance. As a construct, it is indeed more inclusive than “swimming skill’’ alone for addressing drowning prevention. Our proposed taxonomy of water competencies re-emphasizes the need for a broad spectrum of physical aquatic competencies as well as the integration of cognitive and affective competencies. The purpose of this review article is to a) identify all the key elements of water competence, b) support each recommended type of water competence with examples of research evidence, and c) suggest areas requiring further research

Encoding microcarriers : present and future technologies

In answer to the ever-increasing need to carry out many assays simultaneously in drug screening and drug discovery, several microcarrier-based multiplex technologies have arisen in the past few years. The compounds to be screened are attached to the surface of microcarriers, which can be mixed together in a vessel that contains the target analyte. Each microcarrier has to be encoded to know which compound is attached to its surface. In this article, the methods that have been developed for the encoding of microcarriers are reviewed and discussed

Final report on grand challenge LDRD project : a revolution in lighting : building the science and technology base for ultra-efficient solid-state lighting.

This SAND report is the final report on Sandia's Grand Challenge LDRD Project 27328, 'A Revolution in Lighting -- Building the Science and Technology Base for Ultra-Efficient Solid-state Lighting.' This project, which for brevity we refer to as the SSL GCLDRD, is considered one of Sandia's most successful GCLDRDs. As a result, this report reviews not only technical highlights, but also the genesis of the idea for Solid-state Lighting (SSL), the initiation of the SSL GCLDRD, and the goals, scope, success metrics, and evolution of the SSL GCLDRD over the course of its life. One way in which the SSL GCLDRD was different from other GCLDRDs was that it coincided with a larger effort by the SSL community - primarily industrial companies investing in SSL, but also universities, trade organizations, and other Department of Energy (DOE) national laboratories - to support a national initiative in SSL R&D. Sandia was a major player in publicizing the tremendous energy savings potential of SSL, and in helping to develop, unify and support community consensus for such an initiative. Hence, our activities in this area, discussed in Chapter 6, were substantial: white papers; SSL technology workshops and roadmaps; support for the Optoelectronics Industry Development Association (OIDA), DOE and Senator Bingaman's office; extensive public relations and media activities; and a worldwide SSL community website. Many science and technology advances and breakthroughs were also enabled under this GCLDRD, resulting in: 55 publications; 124 presentations; 10 book chapters and reports; 5 U.S. patent applications including 1 already issued; and 14 patent disclosures not yet applied for. Twenty-six invited talks were given, at prestigious venues such as the American Physical Society Meeting, the Materials Research Society Meeting, the AVS International Symposium, and the Electrochemical Society Meeting. This report contains a summary of these science and technology advances and breakthroughs, with Chapters 1-5 devoted to the five technical task areas: 1 Fundamental Materials Physics; 2 111-Nitride Growth Chemistry and Substrate Physics; 3 111-Nitride MOCVD Reactor Design and In-Situ Monitoring; 4 Advanced Light-Emitting Devices; and 5 Phosphors and Encapsulants. Chapter 7 (Appendix A) contains a listing of publications, presentations, and patents. Finally, the SSL GCLDRD resulted in numerous actual and pending follow-on programs for Sandia, including multiple grants from DOE and the Defense Advanced Research Projects Agency (DARPA), and Cooperative Research and Development Agreements (CRADAs) with SSL companies. Many of these follow-on programs arose out of contacts developed through our External Advisory Committee (EAC). In h s and other ways, the EAC played a very important role. Chapter 8 (Appendix B) contains the full (unedited) text of the EAC reviews that were held periodically during the course of the project