250 research outputs found
Three-dimensional microstructuring of yttrium aluminum garnet crystals for laser active optofluidic applications
Get PDFThe following article appeared in Applied Physics Letters 103.4 (2013): 041101 and may be found at http://scitation.aip.org/content/aip/journal/apl/103/4/10.1063/1.4816338We demonstrate three-dimensional microstructuring in a neodymium doped yttrium aluminum garnet (Nd:YAG) crystal. Spatially well-defined hollow microstructures deeply embedded within the material are shown to result from the creation of a pre-damage state within the Nd:YAG crystal network that is validated using luminescence and Raman analyses of the structures. This opens up the potential of fabricating next-generation optofluidic devices in optical gain materialsFinancial support from the Spanish Ministerio de Educación under the Programa de Movilidad de Recursos Humanos del Plan Nacional de IþDþi 2008/2011 for abroad postdoctoral researchers. This work was also supported by the Universidad Autónoma de Madrid and Comunidad Autónoma de Madrid (Project S2009/MAT- 1756) and by the Spanish Ministerio de Educación y Ciencia (MAT2010-16161
The Timely Open Communication for Patient Safety Project
Get PDFBackground: Concern is growing over increased numbers of adverse events experienced by patients when admitted to acute care hospitals in Canada due to breakdowns in communication. The purpose of the Timely Open Communication for Patient Safety (TOC) project was to create a culture of patient safety through enhanced interprofessional communication by developing resources for caregivers and patients. Methods and Findings: The research was framed by a mixed methods design that included pre- and post-surveys and focus groups, online educational modules, face-to-face activities, and the development of patient orientation materials. Three clinical sites participated in the study. The findings indicate that supporting healthcare teams to identify strengths, challenges, and future directions of communicating, clarifying roles, functioning, and collaborating, coupled with educational interventions that raise awareness of patient safety,may enhance patient safety. The study was limited by the absence of data regarding the incidence of adverse events during the research period. Conclusion: The data showed improvement in team members' perceptions of interprofessional collaborative practice within the participating Collaborative Learning Units (CLUs). If the CLU model of care is adopted within the healthcare system, the safety of patients/clients may improve
Natural marine bacteria as model organisms for the hazard-assessment of consumer products containing silver nanoparticles
Get PDFGendered nationalism : the gender gap in support for the Scottish National Party
Get PDFRecent major surveys of the Scottish electorate and of Scottish National Party (SNP) members have revealed a distinct gender gap in support for the party. Men are markedly more likely than women to vote for the SNP and they comprise more than two-thirds of its membership. In this article, we use data from those surveys to test various possible explanations for the disproportionately male support for the SNP. While popular accounts have focused on the gendered appeal of recent leaders and on the party’s fluctuating efforts at achieving gender equality in its parliamentary representation, we find much stronger support for a different explanation. Women are less inclined to support and to join the SNP because they are markedly less supportive of its central objective of independence for Scotland. Since men and women barely differ in their reported national identities, the origins of this gender gap in support for independence presents a puzzle for further research
Prevalence of faecal incontinence in community-dwelling older people in Bali, Indonesia
Get PDFAuthor version made available in accordance with Publisher policy. Under 12 month embargo from date of publication [14 April 2014].
This is the accepted version of the following article: [Suyasa, I. G. P. D., Xiao, L. D., Lynn, P. A., Skuza, P. P. and Paterson, J. (2014), Prevalence of faecal incontinence in community-dwelling older people in Bali, Indonesia. Australasian Journal on Ageing.], which has been published in final form at [doi: 10.1111/ajag.12141]. In addition, authors may also transmit, print and share copies with colleagues, provided that there is no systematic distribution of the submitted version, e.g. posting on a listserve, network or automated delivery.Aim
To explore the prevalence rate of faecal incontinence in community-dwelling older people, associated factors, impact on quality of life and practices in managing faecal incontinence.
Method
Using a cross-sectional design, 600 older people aged 60+ were randomly selected from a population of 2916 in Bali, Indonesia using a simple random sampling technique. Three hundred and three participants were interviewed (response rate 51%).
Results
The prevalence of faecal incontinence was 22.4% (95% confidence interval (CI) 18.0–26.8). Self-reported constipation (odds ratio (OR) 3.68, 95% CI 1.87–7.24) and loose stools (OR 2.66, 95% CI 1.47–4.78) were significantly associated with faecal incontinence. There was a strong positive correlation between total bowel control score and total quality-of-life score (P < 0.001, rs = 0.61) indicating significant alterations in quality of life. The current management practices varied from changing diet, visiting health-care professionals, and using modern and traditional medicines.
Conclusion
Faecal incontinence is common among community-dwelling older people in Bali
Broadcast-enhanced key predistribution schemes
Get PDFWe present a formalisation of a category of schemes that we refer to as broadcast-enhanced key predistribution schemes (BEKPSs). These schemes are suitable for networks with access to a trusted base station and an authenticated broadcast channel. We demonstrate that the access to these extra resources allows for the creation of BEKPSs with advantages over key predistribution schemes such as flexibility and more efficient revocation. There are many possible ways to implement BEKPSs, and we propose a framework for describing and analysing them.
In their paper “From Key Predistribution to Key Redistribution,” Cichoń et al. [2010] propose a scheme for “redistributing” keys to a wireless sensor network using a broadcast channel after an initial key predistribution. We classify this as a BEKPS and analyse it in that context. We provide simpler proofs of some results from their paper, give a precise analysis of the resilience of their scheme, and discuss possible modifications. We then study two scenarios where BEKPSs may be particularly desirable and propose a suitable family of BEKPSs for each case. We demonstrate that they are practical and efficient to implement, and our analysis shows their effectiveness in achieving suitable trade-offs between the conflicting priorities in resource-constrained networks
Planet Hunters. VI: An Independent Characterization of KOI-351 and Several Long Period Planet Candidates from the Kepler Archival Data
Get PDFWe report the discovery of 14 new transiting planet candidates in the Kepler
field from the Planet Hunters citizen science program. None of these candidates
overlapped with Kepler Objects of Interest (KOIs) at the time of submission. We
report the discovery of one more addition to the six planet candidate system
around KOI-351, making it the only seven planet candidate system from Kepler.
Additionally, KOI-351 bears some resemblance to our own solar system, with the
inner five planets ranging from Earth to mini-Neptune radii and the outer
planets being gas giants; however, this system is very compact, with all seven
planet candidates orbiting AU from their host star. A Hill
stability test and an orbital integration of the system shows that the system
is stable. Furthermore, we significantly add to the population of long period
transiting planets; periods range from 124-904 days, eight of them more than
one Earth year long. Seven of these 14 candidates reside in their host star's
habitable zone.Comment: 27 pages, 6 figures, 5 tables, Accepted to AJ (in press) (updated
title from original astro-ph submission
- …
