Zobrazeno 1 - 10
of 642
pro vyhledávání: '"J, Welton"'
Publikováno v:
BMC Medical Research Methodology, Vol 24, Iss 1, Pp 1-14 (2024)
Abstract Background Latent class models can be used to estimate diagnostic accuracy without a gold standard test. Early studies often assumed independence between tests given the true disease state, however this can lead to biased estimates when ther
Externí odkaz:
https://doaj.org/article/8463ca095fb14d1a935226791dd9a950
Autor:
A. Lopatin, O. Dubovik, G. Stenchikov, E. J. Welton, I. Shevchenko, D. Fuertes, M. Herreras-Giralda, T. Lapyonok, A. Smirnov
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 4445-4470 (2024)
This study focuses on the comparison of aerosol columnar aerosol optical depth (AOD) and lidar ratios together with vertical profiles of aerosol extinction and backscatter at 532 nm retrieved over the King Abdullah University of Science and Technolog
Externí odkaz:
https://doaj.org/article/d69969eb85d448d8841742e5d78fe6bb
Autor:
Joe Carroll, Catalina Lopez Manzano, Eve Tomlinson, Ayman Sadek, Chris Cooper, Hayley E Jones, Lorraine Rowsell, John Knight, Andrew Mumford, Rachel Palmer, William Hollingworth, Nicky J. Welton, Penny Whiting
Publikováno v:
Health Technology Assessment, Vol 28, Iss 57 (2024)
Background Stroke or transient ischaemic attack patients are at increased risk of secondary vascular events. Antiplatelet medications, most commonly clopidogrel, are prescribed to reduce this risk. Factors including CYP2C19 genetic variants can hinde
Externí odkaz:
https://doaj.org/article/9fe23a35a7de4c0994e943ca0b06e2b6
Autor:
Ifigeneia Mavranezouli, Odette Megnin-Viggars, Hugo Pedder, Nicky J. Welton, Sofia Dias, Edward Watkins, Neil Nixon, Caitlin H. Daly, Edna Keeney, Hilary Eadon, Deborah M. Caldwell, Katriona J.M. O'Donoghue, Sarah Stockton, Stephanie Arnold, James Thomas, Navneet Kapur, Stephen Pilling
Publikováno v:
EClinicalMedicine, Vol 75, Iss , Pp 102780- (2024)
Summary: Background: Various effective treatments for depression exist. We aimed to identify the most effective first-line treatments for new episodes of less and more severe depression (defined by depression scale cut-off scores), to update NICE gui
Externí odkaz:
https://doaj.org/article/ad8e9aa789644b40a8db1199161b44c3
Autor:
Nicky J Welton, Sofia Dias, Bruce Guthrie, Srinivasa Vittal Katikireddi, Katie Gillies, David A McAllister, Frances Mair, Sarah H Wild, Peter Hanlon, Elaine W Butterly, Emilia Harding, Jennifer Lees, Jamie Crowther
Publikováno v:
BMJ Medicine, Vol 3, Iss 1 (2024)
Objectives To assess whether age, sex, comorbidity count, and race and ethnic group are associated with the likelihood of trial participants not being enrolled in a trial for any reason (ie, screen failure).Design Bayesian meta-analysis of individual
Externí odkaz:
https://doaj.org/article/51a6d450e5064446aa2b10256d02612b
Autor:
C. Gil-Díaz, M. Sicard, A. Comerón, D. C. F. dos Santos Oliveira, C. Muñoz-Porcar, A. Rodríguez-Gómez, J. R. Lewis, E. J. Welton, S. Lolli
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 1197-1216 (2024)
In this paper a statistical study of cirrus geometrical and optical properties based on 4 years of continuous ground-based lidar measurements with the Barcelona (Spain) Micro Pulse Lidar (MPL) is analysed. First, a review of the literature on the two
Externí odkaz:
https://doaj.org/article/2af743f1a49c40faa09751f9938dcaaf
Autor:
X. Shang, A. Lipponen, M. Filioglou, A.-M. Sundström, M. Parrington, V. Buchard, A. S. Darmenov, E. J. Welton, E. Marinou, V. Amiridis, M. Sicard, A. Rodríguez-Gómez, M. Komppula, T. Mielonen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 1329-1344 (2024)
In May–June 2019, smoke plumes from wildfires in Alberta, Canada, were advected all the way to Europe. To analyze the evolution of the plumes and to estimate the amount of smoke aerosols transported to Europe, retrievals from the spaceborne lidar C
Externí odkaz:
https://doaj.org/article/7b822eb0a4f544ee90413273f5838ef8
Autor:
Suzanne C. Freeman, Elnaz Saeedi, José M. Ordóñez-Mena, Clareece R. Nevill, Jamie Hartmann-Boyce, Deborah M. Caldwell, Nicky J. Welton, Nicola J. Cooper, Alex J. Sutton
Publikováno v:
BMC Medical Research Methodology, Vol 23, Iss 1, Pp 1-15 (2023)
Abstract Background Health and social care interventions are often complex and can be decomposed into multiple components. Multicomponent interventions are often evaluated in randomised controlled trials. Across trials, interventions often have compo
Externí odkaz:
https://doaj.org/article/35f1c7c164674cb29e79d5bb02e7d6a8
Autor:
Jianyu Zheng, Zhibo Zhang, Sergio DeSouza‐Machado, Claire L. Ryder, Anne Garnier, Claudia Di Biagio, Ping Yang, Ellsworth J. Welton, Hongbin Yu, Africa Barreto, Margarita Y. Gonzalez
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 4, Pp n/a-n/a (2024)
Abstract Super‐coarse dust particles (diameters >10 μm) are evidenced to be more abundant in the atmosphere than model estimates and contribute significantly to the dust climate impacts. Since super‐coarse dust accounts for less dust extinction
Externí odkaz:
https://doaj.org/article/bd91db7597334bd69a0ece40cb1c0111
Autor:
Peter Hanlon, Elaine Butterly, Anoop S. V. Shah, Laurie J. Hannigan, Sarah H. Wild, Bruce Guthrie, Frances S. Mair, Sofia Dias, Nicky J. Welton, David A. McAllister
Publikováno v:
BMC Medicine, Vol 20, Iss 1, Pp 1-15 (2022)
Abstract Background The applicability of randomised controlled trials of pharmacological agents to older people with frailty/multimorbidity is often uncertain, due to concerns that trials are not representative. However, assessing trial representativ
Externí odkaz:
https://doaj.org/article/5641f373dd6a4b778cb3a4f5f802695e