University of Limerick Institutional Repository

Browsing Mathematics & Statistics by Title

DSpace Repository

Browsing Mathematics & Statistics by Title

Sort by: Order: Results:

  • Lawlor, Brian; Kennelly, Sean; O'Dwyer, Sarah; Cregg, Fiona; Walsh, Cathal Dominic; Cohen, Robert; Kenny, Rose Anne; Howard, Robert; Murphy, Caroline; Adams, Jessica; Daly, Leslie; Segurado, Ricardo; Gaynor, Siobhan; Crawford, Fiona; Mullan, Michael; Lucca, Ugo; Banzi, Rita; Pasquier, Florence; Breuilh, Laetitia; Riepe, Matthias W.; Kalman, Janos; Wallin, Anders; Borjesson-Hanson, Anne; Molloy, William; Tsolaki, Magda; Rikkert, Marcel Olde (BMJ Publshing Group, 2014)
    This study is a European multicentre, randomised, double-blind, placebo-controlled trial investigating the efficacy and safety of nilvadipine as a disease course modifying treatment for mild-tomoderate Alzheimer’s ...
  • Lawlor, Brian; Segurado, Ricardo; Kennelly, Sean; Olde Rikkert, Marcel G. M.; Howard, Robert; Pasquier, Florence; Borjesson-Hanson, Anne; Tsolaki, Magda; Lucca, Ugo; Molloy, D. William; Coen, Robert; Riepe, Matthias W.; Kálmán, János; Kenny, Rose Anne; Cregg, Fiona; O'Dwyer, Sarah; Walsh, Cathal Dominic; Adams, Jessica; Banzi, Rita; Breuilh, Laetitia; Daly, Leslie; Hendrix, Suzanne; Aisen, Paul; Gaynor, Siobhan; Sheikhi, Ali; Taekema, Diana G.; Verhey, Frans R.; Nemni, Raffaello; Nobili, Flavio; Franceschi, Massimo; Frisoni, Giovanni; Zanetti, Orazio; Konsta, Anastasia; Anastasios, Orologas; Nenopoulou, Styliani; Tsolaki-Tagaraki, Fani; Pakaski, Magdolna; Dereeper, Olivier; de la Sayette, Vincent; Sénéchal, Olivier; Lavenu, Isabelle; Devendeville, Agnés; Calais, Gauthier; Crawford, Fiona; Mullan, Michael (Public Library of Science, 2018)
    Background This study reports the findings of the first large-scale Phase III investigator-driven clinical trial to slow the rate of cognitive decline in Alzheimer disease with a dihydropyridine (DHP) calcium channel ...
  • Al-tawarah, Yasin; MacKenzie, Gilbert (IWSM, 2003)
    In longitudinal studies with a set of continuous or ordinal repeated response variables it may be convenient to summarize the outcome as a threshold event. Then, the time to this event becomes of interest. In this paper ...
  • MacKenzie, Gilbert; Do Ha, II; Lee, Youngjo (IWSM, 2003)
    Correlated survival times may be modelled by introducing a random effect, or frailty, component into the hazard function. For multivariate survival data we extend a non-PH model, the generalized time-dependent logistic (GTDL) ...
  • MacKenzie, Gilbert; Al-tawarah, Yasin; Blagojevic, Milisa; Burke, Kevin (IWSM, 2018)
    Non-PH parametric survival modelling is developed within the frame- work of the multiple logistic function. The family considered comprises three basic models: (a) a PH model, (b) an accelerated life model and (c) a model ...
  • Al-tawarah, Yasin; MacKenzie, Gilbert (IWSM, 2005)
    In this paper we investigate the use of accelerated Weibull hazard model. We compare it with Logistic Accelerated Hazard model. The models are used to analyze survival data from the Northern Ireland lung cancer study ...
  • Donovan, J; Murphy, Eamonn (Irish Statistical Association, 2007)
    Commercial irradiation typically involves applying electron beam or gamma radiation to a product with a view to sterilizing the product and killing any bacteria present. This is extremely important in the medical ...
  • McAloon, Conor G.; Wall, Patrick; Butler, Francis; Codd, Mary; Gormley, Eamonn; Walsh, Cathal Dominic; Duggan, Jim; Murphy, Brendan T.; Nolan, Philip; Smyth, Breda; O'Brien, Katie; Teljeur, Conor; Green, Martin J.; O'Grady, Luke; Culhane, Kieran; Buckley, Claire; Carroll, Ciara; Doyle, Sarah; Martin, Jennifer; More, Simon J. (BMC, 2021)
    Background: Contact tracing is conducted with the primary purpose of interrupting transmission from individuals who are likely to be infectious to others. Secondary analyses of data on the numbers of close contacts of ...
  • Hegarty, Alan F.; O'Riordan, E. (Elsevier, 2022)
    A numerical algorithm is presented to solve a benchmark problem proposed by Hemker (1996). The algorithm incorporates asymptotic information into the design of appropriate piecewise-uniform Shishkin meshes. Moreover, ...
  • Timoney, Catherine M. (University of Limerick, 2017)
    This work is concerned with finding accurate numerical approximations to nonlinear reaction-diffusion problems that exhibit layer phenomena. It considers three variations of problems of this type. These are; a ...
  • Moyles, Iain R.; Wetton, Brian (Elsevier, 2015)
    We present a numerical framework for solving localized pattern structures of reaction-diffusion type far from the Turing regime. We exploit asymptotic structure in a set of well established pattern formation problems to ...
  • Fannon, James S.; Fowler, Andrew C.; Moyles, Iain R. (The Royal Society Publishing, 2017)
    We summarize the present form of the instability theory for drumlin formation, which describes the coupled subglacial flow of ice, water and sediment. This model has evolved over the last 20 years, and is now at the point ...
  • Khaleque, Tania S; Fowler, Andrew C.; Howell, P D; Vynnycky, Michael (American Institute of Physics, 2015)
    Motivated by convection of planetary mantles, we consider a mathematical model for Rayleigh-Benard convection in a basally heated layer of a fluid whose viscosity depends strongly on temperature and pressure, defined in ...
  • Lynch, Joseph; MacKenzie, Gilbert (IWSM, 2011)
    We compare and contrast the properties of the bivariate Weibull and GTDL regression survival models. An analytic expression for the correlation between times is derived for the Weibull model and a modified Kullback-Lei ...
  • Kohlstädt, Sebastian; Vynnycky, Michael; Goeke, Stephan; Gebauer-Teichmann, Andreas (MDPI, 2021)
    This paper investigates the critical plunger velocity in high-pressure die casting during the slow phase of the piston motion and how it can be determined with computational fluid dynamics (CFD) in open source software. ...
  • Nick, Arash S.; Vynnycky, Michael (2020)
    Recent work highlighting an anomaly in the modelling of rotary electromagnetic stirring (EMS) in the continuous casting of round steel billets is extended to the case of longitudinal stirring for rectangular blooms. An ...
  • O'Brien, Joseph D. (University of Limerick, 2021)
    Complexity science has proven extremely successful in describing systems from a wide range of domains across the spectrum of society. Generally these understandings arise from considering the interaction of entities ...
  • Benilov, Eugene (European Geosciences Union (EGU) International, 1999)
    The evolution of tracer "injected" into an equivalent barotropic eddy on the beta-plane is examined numerically. The eddy is governed by the standard quasigeostrophic equation, and the concentration of tracer is governed ...
  • Peng, Defen; MacKenzie, Gilbert (IWSM, 2007)
    We develop an analysis of the reliability of reliability data following a negative exponential distribution and subject to type I censoring. Our main focus is to determine the role of the particular analytical approach ...
  • Cahalane, Rachel M.; Barrett, Hilary E.; Ross, Aisling M.; Mulvihill, John J.E.; Purtill, Helen; Selvarajah, Logeswaran; O'Brien, Julie; Kavanagh, Eamon G.; Moloneye, Michael A.; Egan, Siobhan M.; Leahy, Fiona C.; Griffin, Tomás P.; Islam, M.N.; O'Shea, Paul M.; Walsh, Michael T.; O'Connor, Eibhlís M. (Elsevier, 2021)
    Background and aims Atherosclerotic calcification is a powerful predictor of cardiovascular disease. This study aims to determine whether circulating levels of a local/systemic calcification inhibitor or a marker of bone ...

Search ULIR


Browse

My Account

Statistics