David Hewson
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View article: Flowcut Switching: High-Performance Adaptive Routing with In-Order Delivery Guarantees
Flowcut Switching: High-Performance Adaptive Routing with In-Order Delivery Guarantees Open
Network latency severely impacts the performance of applications running on supercomputers. Adaptive routing algorithms route packets over different available paths to reduce latency and improve network utilization. However, if a switch ro…
View article: Four-dimensional flow provides incremental diagnostic value over echocardiography in aortic stenosis
Four-dimensional flow provides incremental diagnostic value over echocardiography in aortic stenosis Open
Aims Four-dimensional flow cardiovascular MRI (4D flow CMR) has emerged as a promising technique for assessing aortic stenosis (AS). This study aimed to evaluate the agreement between 4D flow CMR and transthoracic echocardiography (TTE) in…
View article: INTERCEPT (INTERnational mediCal graduatE comPrehensive inducTion) programme Evaluation study - Evaluating a bespoke comprehensive induction with a focus on integration of International Medical Graduates Beginning Work in the UK v1
INTERCEPT (INTERnational mediCal graduatE comPrehensive inducTion) programme Evaluation study - Evaluating a bespoke comprehensive induction with a focus on integration of International Medical Graduates Beginning Work in the UK v1 Open
Introduction: International Medical Graduates (IMGs) play acritical role in the support and delivery of healthcare services in the UK.However, their integration into the healthcare system poses significantchallenges due to differences in c…
View article: Factors that affect the implementation of an integrated care programme for older people with different frailty levels: a qualitative study of commissioners and provider stakeholders
Factors that affect the implementation of an integrated care programme for older people with different frailty levels: a qualitative study of commissioners and provider stakeholders Open
Introduction The NHS has made it mandatory for General Practices in England to proactively identify and manage older people with moderate and severe frailty since the GMS contract of 2017/2018. In Luton, stakeholders developed the Luton Fr…
View article: Automated Quantification of Simple and Complex Aortic Flow Using 2D Phase Contrast MRI
Automated Quantification of Simple and Complex Aortic Flow Using 2D Phase Contrast MRI Open
(1) Background and Objectives: Flow assessment using cardiovascular magnetic resonance (CMR) provides important implications in determining physiologic parameters and clinically important markers. However, post-processing of CMR images rem…
View article: Myocardial inflammation after elective percutaneous coronary intervention
Myocardial inflammation after elective percutaneous coronary intervention Open
We used USPIO-enhanced CMR for the first time to assess myocardial inflammation after elective, uncomplicated PCI. We have demonstrated a small numerical increase in inflammation, which was not statistically significant. This study opens t…
View article: Workplace Productivity, Health and Wellbeing
Workplace Productivity, Health and Wellbeing Open
Objective The aim of the study was to evaluate the feasibility and potential effects of a workplace intervention to reduce and break up sitting. Methods Office workers were randomized in clusters to intervention ( n = 22) or control ( n = …
View article: Exploring the perceptions and experiences of older people on the use of digital technologies during the COVID-19 pandemic: A qualitative study
Exploring the perceptions and experiences of older people on the use of digital technologies during the COVID-19 pandemic: A qualitative study Open
Background: Physical inactivity is an ongoing problem throughout the lifespan. For older people, inactivity has a negative impact on wellbeing, which worsened during the COVID-19 pandemic. Digital technologies can be employed to encourage …
View article: The effects of adapted mind-body exercises on physical function, quality of life and wellbeing for older people: a systematic review and meta-analysis
The effects of adapted mind-body exercises on physical function, quality of life and wellbeing for older people: a systematic review and meta-analysis Open
There is scope for adapted mind-body physical activity interventions to play a role in improving quality of life, wellbeing, and physical function in older adults. The provision of adapted interventions for older people might improve uptak…
View article: The Impact of the Covid-19 Pandemic on an Integrated Care Programme for Older People with Different Frailty Levels (OPDFL): A Qualitative Study with Service Providers in the East of England
The Impact of the Covid-19 Pandemic on an Integrated Care Programme for Older People with Different Frailty Levels (OPDFL): A Qualitative Study with Service Providers in the East of England Open
The lessons learnt from this study could be useful in managing services for older people with frailty in times of emergencies or epidemics.
View article: Integrated Care for Older People with Different Frailty Levels: A Qualitative Study of Local Implementation of a National Policy in Luton, England
Integrated Care for Older People with Different Frailty Levels: A Qualitative Study of Local Implementation of a National Policy in Luton, England Open
Introduction: The NHS England General Medical Services 2017–18 contract made it mandatory for general practices in England to identify and manage older people proactively. In response to the national policy, the Luton Framework for Frailty…
View article: The Importance of Mitral Valve Prolapse Doming Volume in the Assessment of Left Ventricular Stroke Volume with Cardiac MRI
The Importance of Mitral Valve Prolapse Doming Volume in the Assessment of Left Ventricular Stroke Volume with Cardiac MRI Open
There remains a debate whether the ventricular volume within prolapsing mitral valve (MV) leaflets should be included in the left ventricular (LV) end-systolic volume, and therefore factored in LV stroke volume (SV), in cardiac magnetic re…
View article: The Frail-LESS (LEss Sitting and Sarcopenia in Frail older adults) intervention to improve sarcopenia and maintain independent living via reductions in prolonged sitting: a randomised controlled feasibility trial protocol
The Frail-LESS (LEss Sitting and Sarcopenia in Frail older adults) intervention to improve sarcopenia and maintain independent living via reductions in prolonged sitting: a randomised controlled feasibility trial protocol Open
Background Sarcopenia is a progressive and generalised loss of muscle mass and function with advancing age and is a major contributor to frailty. These conditions lead to functional disability, loss of independence, and lower quality of li…
View article: The Association between Social Vulnerability and Frailty in Community Dwelling Older People: A Systematic Review
The Association between Social Vulnerability and Frailty in Community Dwelling Older People: A Systematic Review Open
The aim of this systematic literature review was to determine whether social vulnerability is associated with frailty in older people. Databases were searched for literature from January 2001 to March 2022. Hand searches of reference lists…
View article: The EASR Corpora of European Portuguese, French, Hungarian and Polish elderly speech
The EASR Corpora of European Portuguese, French, Hungarian and Polish elderly speech Open
Currently available speech recognisers do not usually work well with elderly speech. This is because several characteristics of speech (e.g. fundamental frequency, jitter, shimmer and harmonic noise ratio) change with age and because the a…
View article: Workplace Intervention for Reducing Sitting Time in Sedentary Workers: Protocol for a Pilot Study Using the Behavior Change Wheel
Workplace Intervention for Reducing Sitting Time in Sedentary Workers: Protocol for a Pilot Study Using the Behavior Change Wheel Open
The workplace is a major contributor to excessive sitting in office workers. There are a wide array of adverse effects of high volumes of sitting time, including an increased risk of type 2 diabetes and depression. Active workstations can …
View article: Evaluating a multi-component intervention to reduce and break up office workers’ sitting with sit-stand desks using the APEASE criteria
Evaluating a multi-component intervention to reduce and break up office workers’ sitting with sit-stand desks using the APEASE criteria Open
Objective Sedentary workplace interventions have had success in reducing excessive sitting time in office workers, but barriers to implementation and uptake remain. This study formally assessed a theory-derived, sit-stand desk intervention…
View article: Additional file 1 of Evaluating a multi-component intervention to reduce and break up office workers’ sitting with sit-stand desks using the APEASE criteria
Additional file 1 of Evaluating a multi-component intervention to reduce and break up office workers’ sitting with sit-stand desks using the APEASE criteria Open
Additional file 1. Table that shows the completed COREQ checklist.xlsx.
View article: The psychological effects of working in the NHS during a pandemic on final-year students: part 1
The psychological effects of working in the NHS during a pandemic on final-year students: part 1 Open
Resilience in nursing and midwifery involves being able to manage ethically adverse situations without suffering moral distress and is key to mental wellbeing, staff retention and patient safety. The aim of this research was to ask what th…
View article: Clinical Translation of Three-Dimensional Scar, Diffusion Tensor Imaging, Four-Dimensional Flow, and Quantitative Perfusion in Cardiac MRI: A Comprehensive Review
Clinical Translation of Three-Dimensional Scar, Diffusion Tensor Imaging, Four-Dimensional Flow, and Quantitative Perfusion in Cardiac MRI: A Comprehensive Review Open
Cardiovascular magnetic resonance (CMR) imaging is a versatile tool that has established itself as the reference method for functional assessment and tissue characterisation. CMR helps to diagnose, monitor disease course and sub-phenotype …
View article: The CARESSES Randomised Controlled Trial: Exploring the Health-Related Impact of Culturally Competent Artificial Intelligence Embedded Into Socially Assistive Robots and Tested in Older Adult Care Homes
The CARESSES Randomised Controlled Trial: Exploring the Health-Related Impact of Culturally Competent Artificial Intelligence Embedded Into Socially Assistive Robots and Tested in Older Adult Care Homes Open
This trial represents the final stage of the CARESSES project which aimed to develop and evaluate a culturally competent artificial intelligent system embedded into social robots to support older adult wellbeing. A parallel group, single-b…
View article: Remotely Delivered Mind–Body Physical Activity Improves Physical Function in Older Adults
Remotely Delivered Mind–Body Physical Activity Improves Physical Function in Older Adults Open
A pilot trial of remotely delivered mind–body physical activity was carried out in the UK during the COVID-19 pandemic. Participants performed twice weekly one-hour sessions of the program for eight weeks, with sessions delivered usi…
View article: Instrumented Analysis of the Sit-to-Stand Movement for Geriatric Screening: A Systematic Review
Instrumented Analysis of the Sit-to-Stand Movement for Geriatric Screening: A Systematic Review Open
The Sit-to-Stand (STS) is a widely used test of physical function to screen older people at risk of falls and frailty and is also one of the most important components of standard screening for sarcopenia. There have been many recent studie…
View article: Effectiveness of integrated chronic care interventions for older people with different frailty levels: a systematic review protocol
Effectiveness of integrated chronic care interventions for older people with different frailty levels: a systematic review protocol Open
Introduction Frailty poses a huge burden to individuals, their families and to healthcare systems. Several interventions have been evaluated for the improvement of outcomes for older people with frailty, including integrated care intervent…
View article: Knowledge and attitude of healthcare professionals to frailty screening in primary care: a systematic review protocol
Knowledge and attitude of healthcare professionals to frailty screening in primary care: a systematic review protocol Open
Introduction Frailty is an increasingly common condition in which physiological decline as a result of accumulated deficits renders older people more vulnerable to adverse outcomes. An increasing range of frailty screening programmes have …
View article: A Comparison of Four Approaches to Evaluate the Sit-to-Stand Movement
A Comparison of Four Approaches to Evaluate the Sit-to-Stand Movement Open
The sit-to-stand test (STS) is a simple test of function in older people that can identify people at risk of falls. The aim of this study was to develop two novel methods of evaluating performance in the STS using a low-cost RGB camera and…