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Author = Murphy, Sean;
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Displaying Results 1 - 15 of 15 on page 1 of 1
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A flexible, abstract network optimisation framework and its application to telecommunications network design and configuration problems
(2001)
Murphy, Sean
A flexible, abstract network optimisation framework and its application to telecommunications network design and configuration problems
(2001)
Murphy, Sean
Abstract:
A flexible, generic network optimisation framework is described. The purpose of this framework is to reduce the effort required to solve particular network optimisation problems. The essential idea behind the framework is to develop a generic network optimisation problem to which many network optimisation problems can be mapped. A number of approaches to solve this generic problem can then be developed. To solve some specific network design or configuration problem the specific problem is mapped to the generic problem and one of the problem solvers is used to obtain a solution. This solution is then mapped back to the specific problem domain. Using the framework in this way, a network optimisation problem can be solved using less effort than modelling the problem and developing some algorithm to solve the model. The use of the framework is illustrated in two separate problems: design of an enterprise network to accommodate voice and data traffic and configuration of a core diffserv...
http://doras.dcu.ie/19124/
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Acute hospital, community, and indirect costs of stroke associated with atrial fibrillation: population-based study.
(2014)
Hannon, Niamh; Daly, Leslie; Murphy, Sean; Smith, Samantha; Hayden, Derek; Ní Chróinín,...
Acute hospital, community, and indirect costs of stroke associated with atrial fibrillation: population-based study.
(2014)
Hannon, Niamh; Daly, Leslie; Murphy, Sean; Smith, Samantha; Hayden, Derek; Ní Chróinín, Danielle; Callaly, Elizabeth; Horgan, Gillian; Sheehan, Orla; Honari, Bahman; Duggan, Joseph; Kyne, Lorraine; Dolan, Eamon; Williams, David; Wiley, Miriam; Kelly, Peter J
Abstract:
No economic data from population-based studies exist on acute or late hospital, community, and indirect costs of stroke associated with atrial fibrillation (AF-stroke). Such data are essential for policy development, service planning, and cost-effectiveness analysis of new therapeutic agents.
http://hdl.handle.net/10147/336175
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Falls Related Events In The First Year After Stroke In Ireland: Results Of The Multi-Centre Prospective FREESE Cohort Study
(2018)
Walsh, Mary E; Galvin, Rose; Williams, David; Harbison, Joseph A; Murphy, Sean; Collins...
Falls Related Events In The First Year After Stroke In Ireland: Results Of The Multi-Centre Prospective FREESE Cohort Study
(2018)
Walsh, Mary E; Galvin, Rose; Williams, David; Harbison, Joseph A; Murphy, Sean; Collins, Ronan; McCabe, Dominick; Crowe, Morgan; Horgan, Frances
Abstract:
<p>The original article is available at <a href="http://journals.sagepub.com/">http://journals.sagepub.com/</a></p>
<p><strong>Introduction:</strong> Falls are common post-stroke adverse events. This study aimed to describe the first-year falls incidence, circumstances and consequences among persons discharged home after stroke in Ireland, and to examine the association between potential risk factors and recurrent falls.</p> <p><strong>Patients and Methods:</strong> Patients with acute stroke and planned home-discharge were recruited consecutively from five hospitals. Variables recorded pre-discharge included: age, stroke severity, co-morbidities, fall history, prescribed medications, hemi-neglect, cognition, and functional independence (Barthel Index). Falls were recorded with monthly diaries, and six and 12-month interviews. The association of pre-discharge factors with recurrent falls (>1 fall) was...
https://epubs.rcsi.ie/sphysioart/28
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Falls related EvEnts in the first year after StrokE in Ireland: results of the multi-centre prospective FREESE cohort study
(2018)
Walsh, Mary E.; Galvin, Rose; Williams, David JP.; Harbison, Joseph A.; Murphy, Sean; C...
Falls related EvEnts in the first year after StrokE in Ireland: results of the multi-centre prospective FREESE cohort study
(2018)
Walsh, Mary E.; Galvin, Rose; Williams, David JP.; Harbison, Joseph A.; Murphy, Sean; Collins, Ronan; McCabe, Dominick JH.; Crowe, Morgan; Horgan, Frances N.
Abstract:
Introduction: Falls are common post-stroke adverse events. This study aimed to describe the first-year falls incidence, circumstances and consequences among persons discharged home after stroke in Ireland, and to examine the association between potential risk factors and recurrent falls. Patients and Methods: Patients with acute stroke and planned home-discharge were recruited consecutively from five hospitals. Variables recorded pre-discharge included: age, stroke severity, comorbidities, fall history, prescribed medications, hemi-neglect, cognition, and functional independence (Barthel Index). Falls were recorded with monthly diaries, and six and 12-month interviews. The association of pre-discharge factors with recurrent falls (>1 fall) was examined using univariable logistic regression. Results: 128 participants (mean age=68.6, SD=13.3) were recruited. 110 completed 12-month follow-up. The first-year falls-incidence was 44.5% (95%CI=35.1-53.6) with 25.6% falling repeatedly (9...
http://hdl.handle.net/10344/7200
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First year post-stroke healthcare costs and fall-status among those discharged in the community
(2018)
Walsh, Mary E.; Sorensen, Jan; Galvin, Rose; Williams, David JP.; Harbison, Joseph A.; ...
First year post-stroke healthcare costs and fall-status among those discharged in the community
(2018)
Walsh, Mary E.; Sorensen, Jan; Galvin, Rose; Williams, David JP.; Harbison, Joseph A.; Murphy, Sean; Collins, Ronan; McCabe, Dominick JH.; Crowe, Morgan; Horgan, Frances N.
Abstract:
Introduction: Falls are common post-stroke events but their relationship with healthcare costs is unclear. The aim of this study was to examine the relationship between healthcare costs in the first year after stroke and falls among survivors discharged to the community. Patients and Methods: Survivors of acute stroke with planned home-discharges from five large hospitals in Ireland were recruited. Falls and healthcare utilisation data were recorded using inpatient records, monthly calendars and post-discharge interviews. Cost of stroke was estimated for each participant from hospital admission for one year. The association of fall-status with overall cost was tested with multivariable linear regression analysis adjusting for pre-stroke function, stroke severity, age and living situation. Results: 109 stroke survivors with complete follow-up data (mean age=68.5 years (SD=13.5 years)) were included. 53 participants (49%) fell following stroke, of whom 28 (26%) had recurrent falls. Es...
http://hdl.handle.net/10344/7199
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First Year Post-Stroke Healthcare Costs And Fall-Status Among Those Discharged To The Community
(2018)
Walsh, Mary E; Sorensen, Jan; Galvin, Rose; Williams, David; Harbison, Joseph A; Murphy...
First Year Post-Stroke Healthcare Costs And Fall-Status Among Those Discharged To The Community
(2018)
Walsh, Mary E; Sorensen, Jan; Galvin, Rose; Williams, David; Harbison, Joseph A; Murphy, Sean; Collins, Ronan; McCabe, Dominick; Crowe, Morgan; Horgan, Frances
Abstract:
<p>The original article is available at <a href="http://journals.sagepub.com">http://journals.sagepub.com</a></p>
<p><strong>Introduction:</strong> Falls are common post-stroke events but their relationship with healthcare costs is unclear. The aim of this study was to examine the relationship between healthcare costs in the first year after stroke and falls among survivors discharged to the community.</p> <p><strong>Patients and Methods:</strong> Survivors of acute stroke with planned home-discharges from five large hospitals in Ireland were recruited. Falls and healthcare utilisation data were recorded using inpatient records, monthly calendars and post-discharge interviews. Cost of stroke was estimated for each participant from hospital admission for one year. The association of fall-status with overall cost was tested with multivariable linear regression analysis adjusting for pre-stroke function, st...
https://epubs.rcsi.ie/sphysioart/29
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From Prevention to Nursing Home Care: A Comprehensive National Audit of Stroke Care.
(2011)
Horgan, Frances; McGee, Hannah; Hickey, Anne; Whitford, David L; Murphy, Sean; Royston,...
From Prevention to Nursing Home Care: A Comprehensive National Audit of Stroke Care.
(2011)
Horgan, Frances; McGee, Hannah; Hickey, Anne; Whitford, David L; Murphy, Sean; Royston, Maeve; Cowman, Seamus; Shelley, Emer; Conroy, Ronán; Wiley, Miriam; O'Neill, Desmond
Abstract:
<p>This article is also available at <a href="http://content.karger.com/ProdukteDB/produkte.asp?Aktion=BackIssuesJG&ProduktNr=224153" target="_blank">http://content.karger.com</a></p>
<p>Background: Many countries are developing national audits of stroke care. However, these typically focus on stroke care from acute event to hospital discharge rather than the full spectrum from prevention to long-term care. We report on a comprehensive national audit of stroke care in the community and hospitals in the Republic of Ireland. The findings provide insights into the wider needs of people with stroke and their families, a basis for developing stroke-appropriate health strategies, and a global model for the evaluation of stroke services. Methods: Six national surveys were completed: general practitioners (prevention and primary care), hospital organisational and clinical audit of 2,570 consecutive stroke admissions (acute and hospit...
https://epubs.rcsi.ie/sphysioart/5
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Network Planning for IEEE 802.16j Relay Networks
(2016)
Yu, Yang; Genc, Vasken; Murphy, Seán; Murphy, Liam, B.E.
Network Planning for IEEE 802.16j Relay Networks
(2016)
Yu, Yang; Genc, Vasken; Murphy, Seán; Murphy, Liam, B.E.
Abstract:
In this chapter, a problem formulation for determining the optimal node location for base stations (BSs) and relay stations (RSs) in relay-based 802.16 networks is developed. A number of techniques are proposed to solve the resulting integer programming (IP) problem—these are compared in terms of the time taken to find a solution and the quality of the solution obtained. Finally, there is some analysis of the impact of the ratio of BS/RS costs on the solutions obtained. Three techniques are studied to solve the IP problem: (1) a standard branch and bound mechanism, (2) an approach in which state space reduction techniques are applied in advance of the branch and bound algorithm, and (3) a clustering approach in which the problem is divided into a number of subproblems which are solved separately, followed by a final overall optimization step. These different approaches were used to solve the problem. The results show that the more basic approach can be used to solve problems for sma...
http://hdl.handle.net/10197/7443
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Pre-Hospital Fast Positive Cases Identified by DFB Ambulance Paramedics: Final Clinical Diagnosis.
(2016)
Feeney, A; Barry, T; Hayden, D; Higgins, L; Kavanagh, E; MacMahon, P; O'Reilly, M;...
Pre-Hospital Fast Positive Cases Identified by DFB Ambulance Paramedics: Final Clinical Diagnosis.
(2016)
Feeney, A; Barry, T; Hayden, D; Higgins, L; Kavanagh, E; MacMahon, P; O'Reilly, M; Teeling, S P; Kelly, P J; Murphy, Sean
Abstract:
<p>The original article is available at www.imj.ie</p>
<p>Ischaemic stroke clinical outcomes are improved by earlier treatment with intravenous thrombolysis. An existing pathway at the Mater University Hospital for assessment of suspected acute stroke in the Emergency Department was updated, aiming to shorten door-to-needle time. This study examines the final clinical diagnosis of Dublin Fire Brigade Ambulance Paramedic identified Face-Arm-Speech-Test (FAST) positive patients presenting to the Emergency Department over a 7 month period. A retrospective analysis was carried out of 177 consecutive FAST positive patients presenting between March and November 2014. The final clinical diagnosis was acute stroke in 57.1% (n=101) of patients. Of these, 76 were ischaemic strokes of whom 56.5% (n=43) were thrombolysed. In the pre-hospital setting Ambulance Paramedics can identify, with reasonable accuracy, acute stroke using the FAST test. Over half of the ischaemic str...
https://epubs.rcsi.ie/medart/78
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Stroke knowledge in an Irish semi-rural community-dwelling cohort and impact of a brief education session.
(2012)
O'Callaghan, Geraldine; Murphy, Sean; Loane, Dorothy; Farrelly, Evelyn; Horgan, Fr...
Stroke knowledge in an Irish semi-rural community-dwelling cohort and impact of a brief education session.
(2012)
O'Callaghan, Geraldine; Murphy, Sean; Loane, Dorothy; Farrelly, Evelyn; Horgan, Frances
Abstract:
Poor knowledge of stroke risk factors and failure to recognize and act on acute symptoms hinders efforts to prevent stroke and improve clinical outcomes. Levels of stroke knowledge are poorly established within Ireland. This study was conducted to establish levels of knowledge among men and women aged >40 years in an Irish community, and also to determine the impact of a single education session on stroke knowledge. Subjects from 2 separate geographical locations were allocated to an intervention group (n = 200), who received stroke information over a 90-minute session, or a control group (n = 200). Both groups completed a stroke knowledge questionnaire at baseline and at 4 weeks after the educational session. Overall, the initial response rate was 70% (280/400); 52% of the respondents knew that the brain is affected by stroke, 58% could list 2 or more risk factors but only 27% could list 2 or more warning signs, 50% would call 999 (emergency number in Ireland) in response to str...
http://hdl.handle.net/10147/285652
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Stroke Knowledge in an Irish Semi-Rural Community-Dwelling Cohort and Impact of a Brief Education Session.
(2011)
O'Callaghan, Geraldine; Murphy, Sean; Loane, Dorothy; Farrelly, Evelyn; Horgan, Fr...
Stroke Knowledge in an Irish Semi-Rural Community-Dwelling Cohort and Impact of a Brief Education Session.
(2011)
O'Callaghan, Geraldine; Murphy, Sean; Loane, Dorothy; Farrelly, Evelyn; Horgan, Frances
Abstract:
<p>This article is also available at,<a href="http://www.strokejournal.org/"> </a></p> <p><a href="http://www.strokejournal.org/">http://www.strokejournal.org/</a></p>
<p>Poor knowledge of stroke risk factors and failure to recognize and act on acute symptoms hinders efforts to prevent stroke and improve clinical outcomes. Levels of stroke knowledge are poorly established within Ireland. This study was conducted to establish levels of knowledge among men and women aged >40 years in an Irish community, and also to determine the impact of a single education session on stroke knowledge. Subjects from 2 separate geographical locations were allocated to an intervention group (n = 200), who received stroke information over a 90-minute session, or a control group (n = 200). Both groups completed a stroke knowledge questionnaire at baseline and at 4 weeks after the educational session. Overall, the initial resp...
https://epubs.rcsi.ie/sphysioart/4
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Towards Earlier Discharge, Better Outcomes, Lower Costs: Stroke rehabilitation in Ireland
(2014)
Wren, Maev-Ann; Gillespie, Paddy; Smith, Samantha; Kearns, Karen; Wolfe, Charles; Parki...
Towards Earlier Discharge, Better Outcomes, Lower Costs: Stroke rehabilitation in Ireland
(2014)
Wren, Maev-Ann; Gillespie, Paddy; Smith, Samantha; Kearns, Karen; Wolfe, Charles; Parkin, David; Crichton, Siobhan; Hickey, Anne; Horgan, Frances; Wiley, Miriam; Cowman, Seamus; Delargy, Mark; Murphy, Sean; O'Neill, Des; Williams, David; Loughnane, Cliona
Abstract:
<p>This report is available at <a href="https://www.esri.ie/publications/latest_publications/view/index.xml?id=4071">https://www.esri.ie/publications/latest_publications/view/index.xml?id=4071</a></p>
<p>Towards Earlier Discharge, Better Outcomes, Lower Cost is a new and valuable study which adds to our understanding of how to better patient outcomes within the budgetary realities of our current healthcare system. This study, undertaken by the ESRI and the RCSI with the support of the Irish Heart Foundation, provides a strong economic justification for policymakers to develop Ireland's community rehabilitation and care services, and equally, shows the potential benefits for patients that can come from healthcare research.</p> <p>This study brought together a range of disciplines and expertise to build on the previous Irish Heart Foundation-supported study, The Cost of Stroke in Ireland, undertaken by researchers at the ESR...
https://epubs.rcsi.ie/sphysiorep/2
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Validation of two risk prediction models for recurrent falls in the first year after stroke: A prospective cohort study
(2017)
MCCABE, DOMINICK; BOLAND, FRANCIS; HARBISON, JOSEPH; Walsh, Mary E.; Galvin, Rose; Will...
Validation of two risk prediction models for recurrent falls in the first year after stroke: A prospective cohort study
(2017)
MCCABE, DOMINICK; BOLAND, FRANCIS; HARBISON, JOSEPH; Walsh, Mary E.; Galvin, Rose; Williams, David; Murphy, Sean; Collins, Ronan; Crowe, Morgan; Horgan, Frances
Abstract:
Background: several multivariable models have been derived to predict post-stroke falls. These require validation before integration into clinical practice. The aim of this study was to externally validate two prediction models for recurrent falls in the first year post-stroke using an Irish prospective cohort study. Methodology: stroke patients with planned home-discharges from five hospitals were recruited. Falls were recorded with monthly diaries and interviews 6 and 12 months post-discharge. Predictors for falls included in two risk-prediction models were assessed at discharge. Participants were classified into risk groups using these models. Model 1, incorporating inpatient falls history and balance, had a 6-month outcome. Model 2, incorporating inpatient near-falls history and upper limb function, had a 12-month outcome. Measures of calibration, discrimination (area under the curve (AUC)) and clinical utility (sensitivity/specificity) were calculated. Results: 128 participa...
http://hdl.handle.net/2262/92194
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Validation of two risk-prediction models for recurrent falls in the first year after stroke: a prospective cohort study
(2017)
Walsh, Mary E.; Galvin, Rose; Boland, Fiona; Williams, David JP.; Harbison, Joseph A.; ...
Validation of two risk-prediction models for recurrent falls in the first year after stroke: a prospective cohort study
(2017)
Walsh, Mary E.; Galvin, Rose; Boland, Fiona; Williams, David JP.; Harbison, Joseph A.; Murphy, Sean; Collins, Ronan; Crowe, Morgan; McCabe, Dominick JH.; Horgan, Frances N.
Abstract:
Background: Several multivariable models have been derived to predict post-stroke falls. These require validation before integration into clinical practice. The aim of this study was to externally validate two prediction models for recurrent falls in the first year post-stroke using an Irish prospective cohort study. Methodology: Stroke patients with planned home-discharges from five hospitals were recruited. Falls were recorded with monthly diaries and interviews six and 12 months post-discharge. Predictors for falls included in two risk-prediction models were assessed at discharge. Participants were classified into risk-groups using these models. Model 1, incorporating inpatient falls-history and balance, had a six-month outcome. Model 2, incorporating inpatient near-falls history and upper limb function, had a twelve-month outcome. Measures of calibration, discrimination (area under the curve (AUC)) and clinical utility (sensitivity/ specificity) were calculated. Results: 128 par...
http://hdl.handle.net/10344/6461
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Validation of two risk-prediction models for recurrent falls in the first year after stroke: a prospective cohort study.
(2017)
Walsh, Mary E; Galvin, Rose; Boland, Fiona; Williams, David; Harbison, Joseph A; Murphy...
Validation of two risk-prediction models for recurrent falls in the first year after stroke: a prospective cohort study.
(2017)
Walsh, Mary E; Galvin, Rose; Boland, Fiona; Williams, David; Harbison, Joseph A; Murphy, Sean; Collins, Ronan; Crowe, Morgan; McCabe, Dominick JH; Horgan, Frances
Abstract:
<p>This is a pre-copyedited, author-produced version of an article accepted for publication in Age and Aging following peer review. The version of record Walsh ME, Galvin R, Boland F, Williams D, Harbison JA, Murphy S, Collins R, Crowe M, McCabe JH, Horgan F. Validation of two risk-prediction models for recurrent falls in the first year after stroke: a prospective cohort study. Age and Ageing. 2017 Jan 18. [Epub ahead of print is available online at: <a href="https://academic.oup.com/ageing/article-lookup/doi/10.1093/ageing/afw255">https://academic.oup.com/ageing/article-lookup/doi/10.1093/ageing/afw255</a>.</p>
<p>BACKGROUND: several multivariable models have been derived to predict post-stroke falls. These require validation before integration into clinical practice. The aim of this study was to externally validate two prediction models for recurrent falls in the first year post-stroke using an Irish prospective cohort study.</p> &...
https://epubs.rcsi.ie/sphysioart/25
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