Fruit fly optimization algorithm for network-aware web service composition in the cloud

Service Oriented Computing (SOC) provides a framework for the realization of loosely coupled service oriented applications. Web services are central to the concept of SOC. Currently, research into how web services can be composed to yield QoS optimal composite service has gathered significant attention. However, the number and spread of web services across the cloud data centers has increased, thereby increasing the impact of the network on composite service performance experienced by the user. Recently, QoS-based web service composition techniques focus on optimizing web service QoS attributes such as cost, response time, execution time, etc. In doing so, existing approaches do not separate QoS of the network from web service QoS during service composition. In this paper, we propose a network-aware service composition approach which separates QoS of the network from QoS of web services in the Cloud. Consequently, our approach searches for composite services that are not only QoS-optimal but also have optimal QoS of the network. Our approach consists of a network model which estimates the QoS of the network in the form of network latency between services on the cloud. It also consists of a service composition technique based on fruit fly optimization algorithm which leverages the network model to search for low latency compositions without compromising service QoS levels. The approach is discussed and the results of evaluation are presented. The results indicate that the proposed approach is competitive in finding QoS optimal and low latency solutions when compared to recent techniques

Who uses NHS health checks? Investigating the impact of ethnicity and gender and method of invitation on uptake of NHS health checks

Background NHS Health Checks is a national risk assessment prevention programme for all individuals aged 40-74 that reside in England. Through the systematic assessment of an individual’s ten year disease risk, this programme aims to provide early identification and subsequent management of this risk. However, there is limited evidence on how socio-demographic factors impact on uptake and what influence the invitation method has on uptake to this programme. Methods NHS Health Check data from April 2013 to March 2014 was analysed (N = 50,485) for all 30 GP Practices in Luton, a culturally diverse town in England, UK. Data was collected for age, ethnicity, uptake (attendance and non attendance) and invitation method (letter written, verbal face-to-face, telephone). Actual usage of NHS Health Checks was determined for each ethnic group of the population and compared using Chi-square analysis. Results The overall uptake rate for Luton was 44 %, markedly lower that the set target of 50–75 %. The findings revealed a variation of uptake in relation to age, gender, level of deprivation. Ethnicity and gender variations were also found, with ‘White British’ ‘Black Caribbean’ and ‘Indian’ patients most likely to take up a NHS Health Check. However, patients from ‘Any Other White Background’ and ‘Black African’ were significantly less likely to uptake an NHS Health Check compared to all other ethnic groups. Ethnicity and gender differences were also noted in relation to invitation method. Conclusions The findings revealed that different invitation methods were effective for different ethnic and gender groups. Therefore, it is suggested that established protocols of invitation are specifically designed for maximizing the response rate for each population group. Future research should now focus on uncovering the barriers to uptake in particular culturally diverse population groups to determine how public health teams can better engage with these communities

Using nature-based soundscapes to support task performance and mood

Smartphone apps that enable workers to listen to nature soundscapes are increasingly popular. There is, however, little evidence that these soundscapes have the effects that they claim to have. Previous research exploring the effect of listening to background music during tasks has shown that while such music may have a positive effect on emotional state, it can disrupt reading and memory-based tasks. This paper explores the effects of nature soundscapes on mood and performance. A diary study of the use of soundscapes whilst studying suggests that students view such soundscapes as: aiding focus whilst studying; creating feelings of calm and peace; helping to manage stress and anxiety; and hiding distracting sounds. A second study - an experiment - investigated the effects of nature soundscapes on mood and performance. Whilst we found no effect of soundscapes on mood and arousal during the task, our results demonstrate that high acoustic variation in a soundscape may cause a disruption to serial recall tasks. The implications of our findings suggest that nature soundscapes with high acoustic variation may be detrimental to task performance compared to working in silence for serial based thinking tasks

Evidence-Based Skin Champion Program Reduces Pressure Injuries in a Pediatric Hospital

Prevention of pressure injuries (PIs) in pediatric patients is an important nurse-sensitive quality goal. The PI rate at a large urban pediatric hospital triggered a call to action by the Chief Nursing Officer to establish a Hospital Acquired PI (HAPI) Task Force which identified the Skin Champion program as a key improvement strategy. The goals of the Skin Champion program are to lower the rate of HAPIs, empower front line care providers to implement evidence-based care bundles, achieve consistency of practice, and provide resource availability at the point of care. The implementation of the Skin Champion quality improvement program achieved an 85% reduction in severe harm and “reportable HAPI incidence, which is lower than the HAPI national average in pediatric patients (Solutions for Patient Safety, 2018), and an increase in nurse compliance with the HAPI prevention bundle. The HAPI incidence rate has remained near 0.05 per 1000 patient days

Objective Study of Speed and Accuracy in Typing

A preliminary report of an attempt to determine a valid criterion-measure of speed and accuracy in typing practice among high school pupils

Reflections on a degree initiative: the UK's Birmingham Royal Ballet dancers enter the University of Birmingham

This paper provides an opportunity to share experiences and perceptions of the first 5 years of a degree programme for professional dancers. A partnership developed in the mid-1990s between the UK's Birmingham Royal Ballet and the University of Birmingham, Westhill (now School of Education), to provide a part-time, post-experience, flexible study programme for full-time Company dancers. This is the first 'company customised' higher education programme to dovetail studies around rehearsal, performance and touring schedules. Methodology is based on a narrative by the author, informed by ongoing internal and external evaluations, in-depth interviews with dancers and Company managers, documentation and secondary sources. Outcomes indicate that the programme has made a positive difference to the Company, to the dancers and to the wider education and dance/arts world

Vocal Artists Recital

This is the program for the vocal artists recital held on February 24, 1987. Vocal artists included Margie Luton, Natalie Allen, Wendy Canterbury, Lee Ann Dees, Jody Hurst, Chris Norris, Cindi Price, Amanda Allen, Jennifer Cram, Larry Harrison, Diane O\u27Nale, Brian Smith, Kim Whatley, Gary Powell, Angela Stracener, Carol Thompson, John Briggs, Alex Sharp, John Hossler, and Rusty Hart

Drama and Theatre in and for Schools: Referencing the Nature of Theatre in Contemporary New Zealand

This thesis considers the nature of drama and theatre in and for schools and references the nature of theatre in contemporary New Zealand. Drama in schools in New Zealand has developed from the earliest school productions in the 1800's, through its perceived role to enrich lives, to becoming a discrete Arts subject within the New Zealand educational curriculum in 1999. During this development, theatre companies began to tour schools and arguments ensued regarding drama's role in education as a process or performance. This development is charted through a range of historical and current curriculum documents. The thesis references the importance of the Australian UNESCO Seminar on drama in education in 1958 which explored the relationship between the educational aspects of Drama and Drama as an art form, and which inspired New Zealand Drama teachers. The research contains interviews conducted during 2009, with Drama teachers, students and theatre practitioners, as well as considering examples of performances by schools and professional theatre since the advent of the new curriculum. The thesis investigates some of the many kinds of Drama work taking place in contemporary New Zealand schools, including co-curricula and curricula productions concerning a wide range of issues and utilising a range of dramatic styles. These include, an Intermediate School's collaboration and contribution to capital E's production of Kia Ora Khalid, and examples of devised and scripted projects undertaken at Secondary Colleges in New Zealand. The research explores the relationship which exists between schools and professional theatre practitioners, and establishes some of the ways in which the relationship is beneficial for the development of high quality Drama programmes in schools. The contribution of the Auckland Theatre Company's Educational Unit to schools is investigated, as is an example of the Artist in Schools programme at Pakuranga College in Auckland. The introduction of the National certificate in Educational drama in 2001 has undoubtedly contributed to the range and quality of work being undertaken in schools, allowing the contention that their Drama performance work can, and often does, contribute to the cultural welfare of local communities and to a New Zealand theatre identity in general

Overexpression of copper zinc superoxide dismutase impairs human trophoblast cell fusion and differentiation.: SOD-1 and Human Trophoblast Differentiation

The syncytiotrophoblast is the major component of the human placenta, involved in feto-maternal exchanges and secretion of pregnancy-specific hormones. Multinucleated syncytiotrophoblast arises from fusion of mononuclear cytotrophoblast cells. In trisomy 21-affected placentas, we recently have shown that there is a defect in syncytiotrophoblast formation and a decrease in the production of pregnancy-specific hormones. Due to the role of oxygen free radicals in trophoblast cell differentiation, we investigated the role of the key antioxidant enzyme, copper/zinc superoxide dismutase, encoded by chromosome 21 in in vitro trophoblast differentiation. We first observed that overexpression of superoxide dismutase in normal cytotrophoblasts impaired syncytiotrophoblast formation. This was associated with a significant decrease in mRNA transcript levels and secretion of hCG and other hormonal markers of syncytiotrophoblast. We confirmed abnormal cell fusion by overexpression of green fluorescence protein-tagged superoxide dismutase in cytotrophoblasts. In addition, a significant decrease in syncytin transcript levels was observed in superoxide dismutase-transfected cells. We then examined superoxide dismutase expression and activity in isolated trophoblast cells from trisomy 21-affected placentas. Superoxide dismutase mRNA expression (P < 0.05), protein levels (P < 0.01), and activity (P < 0.05) were significantly higher in trophoblast cells isolated from trisomy 21-affected placentas than in those from normal placentas. These results suggest that superoxide dismutase overexpression may directly impair trophoblast cell differentiation and fusion, and superoxide dismutase overexpression in Down's syndrome may be responsible at least in part for the failure of syncytiotrophoblast formation observed in trisomy 21-affected placentas

Conversion of gasoline Saturn SL-1 to dedicated compressed natural gas use

This thesis project investigates the viability of creating a practical, low-cost conversion of a light-duty vehicle to dedicated natural gas service. The vehicle used in the study is a 1991 Saturn SL-1. The paper focuses on three main aspects: installation of conversion hardware, use of an electronic controller to tailor engine performance, and measuring performance of the final vehicle. The conversion hardware consists primarily of a single compressed natural gas tank with brackets; valves, tubing, a pressure regulator, fuel injectors, and other components to create a fuel delivery system. Engine conversion involves substitution of original pistons with flat-top pistons, raising the compression ratio to 11.0:1. An aftermarket electronic engine controller with comprehensive software manages all basic engine functions using existing engine sensors and output devices. The OEM controller is left only non-engine tasks to perform. Initial performance data reveal a 7% decrease in engine torque, but a vehicle highway range (at 3600 psig initial fill) of 250 miles. Further testing and evaluation of the conversion are recommended