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Analytical and numerical studies on the influence of multiplication operators for the ill-posedness of inverse problems
In this paper we deal with the degree of ill-posedness of linear operator equations Ax = y, x X, y Y, in the Hilbert space X = Y = L 2(0, 1), where A = M о J is a compact operator that may be decomposed into the simple...
Digital Employee Training With Digital Adoption Platforms Boost Learning and Knowledge Management of Corporate IT Systems
Due to increasing digitalization, employees need to use an increasing number of corporate IT systems. Digital Adoption Platforms (DAPs) recently address the resulting need for increased learning and skills to master such...
Published by: IGI Global Scientific Publishing
A low-rank approach to the solution of weak constraint variational data assimilation problems
Weak constraint four-dimensional variational data assimilation is an important method for incorporating data (typically observations) into a model. The linearised system arising within the minimisation process can be formulated...
Tuned preconditioners for inexact two-sided inverse and Rayleigh quotient iteration
Convergence results are provided for inexact two-sided inverse and Rayleigh quotient iteration, which extend the previously established results to the generalized non-Hermitian eigenproblem and inexact solves with a...
The effect of numerical model error on data assimilation
Strong constraint 4D-Variational data assimilation (4D-Var) is a method used to create an initialisation for a numerical model, that best replicates subsequent observations of the system it aims to recreate. The method does not...
A low-rank approach to the solution of weak constraint variational data assimilation problems
Weak constraint four-dimensional variational data assimilation is an important method for incorporating data (typically observations) into a model. The linearised system arising within the minimisation process can be formulated...
Analytical and numerical studies on the influence of multiplication operators for the ill-posedness of inverse problems
In this paper we deal with the degree of ill-posedness of linear operator equations Ax = y, x X, y Y, in the Hilbert space X = Y = L 2(0, 1), where A = M о J is a compact operator that may be decomposed into the simple...
Tuned preconditioners for inexact two-sided inverse and Rayleigh quotient iteration
Convergence results are provided for inexact two-sided inverse and Rayleigh quotient iteration, which extend the previously established results to the generalized non-Hermitian eigenproblem and inexact solves with a...
The computation of Jordan blocks in parameter-dependent matrices
This paper extends the implicit determinant method introduced by Spence & Poulton (2005, J. Comput. Phys., 204, 65–81) to obtain a numerical technique for the calculation of a two-dimensional Jordan block in a...
The computation of Jordan blocks in parameter-dependent matrices
This paper extends the implicit determinant method introduced by Spence & Poulton (2005, J. Comput. Phys., 204, 65–81) to obtain a numerical technique for the calculation of a two-dimensional Jordan block in a...
The effect of numerical model error on data assimilation
Strong constraint 4D-Variational data assimilation (4D-Var) is a method used to create an initialisation for a numerical model, that best replicates subsequent observations of the system it aims to recreate. The method does not...
GMRES convergence bounds for eigenvalue problems
The convergence of GMRES for solving linear systems can be influenced heavily by the structure of the right hand side. Within the solution of eigenvalue problems via inverse iteration or subspace iteration, the right hand side...
GMRES convergence bounds for eigenvalue problems
The convergence of GMRES for solving linear systems can be influenced heavily by the structure of the right hand side. Within the solution of eigenvalue problems via inverse iteration or subspace iteration, the right hand side...
A Method for the Acute and Rapid Degradation of Endogenous Proteins.
Dean Clift, William A McEwan, Larisa I Labzin, Vera Konieczny, Binyam Mogessie, Leo C James, Melina Schuh
Dec 12, 2018
Methods for the targeted disruption of protein function have revolutionized science and greatly expedited the systematic characterization of genes. Two main approaches are currently used to disrupt protein function: DNA knockout...
Treating to target in psoriatic arthritis
Ines Rombach, William Tillett, Deepak Jadon, Laura Tucker, Marion Watson, Anne Francis, Yvonne Sinomati, Lucy Eldridge, Melina Dritsaki, Susan J. Dutton, Hussein Al-Mossawi, Nicola Gullick, Ben Thompson, Laura C. Coates
Mar 04, 2021
Abstract: Background: The Tight Control of psoriatic arthritis (TICOPA) trial confirmed improved clinical outcomes with a treat to target (T2T) strategy in psoriatic arthritis (PsA). This consisted of 4-weekly review and...
Preparing for pandemics
Ishmeala Rigby, Melina Michelen, Vincent Cheng, Andrew Dagens, Dania Dahmash, Samuel Lipworth, Eli Harriss, Erhui Cai, Valeria Balan, Alexandra Oti, Reena Joseph, Helen Groves, Peter Hart, Shevin Jacob, Lucille Blumberg, Peter W Horby, Louise Sigfrid
Dec 09, 2022
BACKGROUND: The COVID-19 pandemic has highlighted the importance of evidence-based clinical decision-making. Clinical management guidelines (CMGs) may help reduce morbidity and mortality by improving the quality of clinical...
Isolation of neural stem and oligodendrocyte progenitor cells from the brain of live rats.
Freyja McClenahan, Christina Dimitriou, Christos Koutsakis, Dimitrios Dimitrakopoulos, Asterios Arampatzis, Paraskevi Kakouri, Michaela Kourla, Sofia Oikonomou, Evangelia Andreopoulou, Melina Patsonis, Danai-Kassandra Meri, Rana-Tahir Rasool, Robin Jm Franklin, Ilias Kazanis
Aug 25, 2021
Postnatal brain neural stem and progenitor cells (NSPCs) cluster in anatomically inaccessible stem cell niches, such as the subependymal zone (SEZ). Here, we describe a method for the isolation of NSPCs from live animals, which...
cerebrospinal fluid ependymal cell Liquid biopsy Neural Stem Cells Neuraminidase Neurogenesis oligodendrocyte progenitor cells Stem Cell Niche subependymal zone Ventricular-subventricular zone Animals Brain Cell Culture Techniques Cell Differentiation cerebrospinal fluid Corpus Callosum Humans Liquid biopsy Male Neural Stem Cells oligodendrocyte precursor cells Rats Rats Long-Evans Rats Sprague-Dawley Rats Wistar Stem Cell Niche
Treating to target in psoriatic arthritis
Ines Rombach, William Tillett, Deepak Jadon, Laura Tucker, Marion Watson, Anne Francis, Yvonne Sinomati, Lucy Eldridge, Melina Dritsaki, Susan J Dutton, Hussein Al-Mossawi, Nicola Gullick, Ben Thompson, Laura C Coates
Apr 12, 2021
BACKGROUND: The Tight Control of psoriatic arthritis (TICOPA) trial confirmed improved clinical outcomes with a treat to target (T2T) strategy in psoriatic arthritis (PsA). This consisted of 4-weekly review and escalation of...
Preparing for pandemics
Ishmeala Rigby, Melina Michelen, Vincent Cheng, Andrew Dagens, Dania Dahmash, Samuel Lipworth, Eli Harriss, Erhui Cai, Valeria Balan, Alexandra Oti, Reena Joseph, Helen Groves, Peter Hart, Shevin Jacob, Lucille Blumberg, Peter W Horby, Louise Sigfrid
Nov 08, 2022
BACKGROUND: The COVID-19 pandemic has highlighted the importance of evidence-based clinical decision-making. Clinical management guidelines (CMGs) may help reduce morbidity and mortality by improving the quality of clinical...
The genetic landscape of axonal neuropathies in the middle-aged and elderly
Jan Senderek, Petra Lassuthova, Dagmara Kabzińska, Lisa Abreu, Jonathan Baets, Christian Beetz, Geir J Braathen, David Brenner, Joline Dalton, Lois Dankwa, Tine Deconinck, Peter De Jonghe, Bianca Dräger, Katja Eggermann, Melina Ellis, Carina Fischer, Tanya Stojkovic, David N Herrmann, Rita Horvath, Helle Høyer, Stephan Iglseder, Marina Kennerson, Katharina Kinslechner, Jennefer N Kohler, Ingo Kurth, Nigel G Laing, Phillipa J Lamont, Löscher Wolfgang N, Albert Ludolph, Wilson Marques, Garth Nicholson, Royston Ong, Susanne Petri, Gianina Ravenscroft, Adriana Rebelo, Giulia Ricci, Sabine Rudnik-Schöneborn, Anja Schirmacher, Beate Schlotter-Weigel, Ludger Schoels, Rebecca Schüle, Matthis Synofzik, Bruno Francou, Tim M Strom, Johannes Wagner, David Walk, Julia Wanschitz, Daniela Weinmann, Jochen Weishaupt, Manuela Wiessner, Reinhard Windhager, Peter Young, Stephan Züchner, Stefan Toegel, Pavel Seeman, Andrzej Kochański, Michaela Auer-Grumbach
Nov 19, 2020
OBJECTIVE: To test the hypothesis that monogenic neuropathies such as Charcot-Marie-Tooth disease (CMT) contribute to frequent but often unexplained neuropathies in the elderly, we performed genetic analysis of 230 patients with...
Large meta-analysis of genome-wide association studies identifies five loci for lean body mass.
M Carola Zillikens, Serkalem Demissie, Yi-Hsiang Hsu, Laura M Yerges-Armstrong, Wen-Chi Chou, Lisette Stolk, Gregory Livshits, Linda Broer, Toby Johnson, Daniel L Koller, Zoltán Kutalik, Jian'an Luan, Ida Malkin, Janina S Ried, Albert V Smith, Gudmar Thorleifsson, Liesbeth Vandenput, Jing Hua Zhao, Weihua Zhang, Ali Aghdassi, Kristina Åkesson, Najaf Amin, Leslie J Baier, Inês Barroso, David A Bennett, Lars Bertram, Rainer Biffar, Murielle Bochud, Michael Boehnke, Ingrid B Borecki, Aron S Buchman, Liisa Byberg, Harry Campbell, Natalia Campos Obanda, Jane A Cauley, Peggy M Cawthon, Henna Cederberg, Zhao Chen, Nam H Cho, Hyung Jin Choi, Melina Claussnitzer, Francis Collins, Steven R Cummings, Philip L De Jager, Ilja Demuth, Rosalie AM Dhonukshe-Rutten, Luda Diatchenko, Gudny Eiriksdottir, Anke W Enneman, Mike Erdos, Johan G Eriksson, Joel Eriksson, Karol Estrada, Daniel S Evans, Mary F Feitosa, Mao Fu, Melissa Garcia, Christian Gieger, Thomas Girke, Nicole L Glazer, Harald Grallert, Jagvir Grewal, Bok-Ghee Han, Robert L Hanson, Caroline Hayward, Albert Hofman, Eric P Hoffman, Georg Homuth, Wen-Chi Hsueh, Monica J Hubal, Alan Hubbard, Kim M Huffman, Lise B Husted, Thomas Illig, Erik Ingelsson, Till Ittermann, John-Olov Jansson, Joanne M Jordan, Antti Jula, Magnus Karlsson, Kay-Tee Khaw, Tuomas O Kilpeläinen, Norman Klopp, Jacqueline SL Kloth, Heikki A Koistinen, William E Kraus, Stephen Kritchevsky, Teemu Kuulasmaa, Johanna Kuusisto, Markku Laakso, Jari Lahti, Thomas Lang, Bente L Langdahl, Lenore J Launer, Jong-Young Lee, Markus M Lerch, Joshua R Lewis, Lars Lind, Cecilia Lindgren, Yongmei Liu, Tian Liu, Youfang Liu, Östen Ljunggren, Mattias Lorentzon, Robert N Luben, William Maixner, Fiona E McGuigan, Carolina Medina-Gomez, Thomas Meitinger, Håkan Melhus, Dan Mellström, Simon Melov, Karl Michaëlsson, Braxton D Mitchell, Andrew P Morris, Leif Mosekilde, Anne Newman, Carrie M Nielson, Jeffrey R O'Connell, Ben A Oostra, Eric S Orwoll, Aarno Palotie, Stephen CJ Parker, Munro Peacock, Markus Perola, Annette Peters, Ozren Polasek, Richard L Prince, Katri Räikkönen, Stuart H Ralston, Samuli Ripatti, John A Robbins, Jerome I Rotter, Igor Rudan, Veikko Salomaa, Suzanne Satterfield, Eric E Schadt, Sabine Schipf, Laura Scott, Joban Sehmi, Jian Shen, Chan Soo Shin, Gunnar Sigurdsson, Shad Smith, Nicole Soranzo, Alena Stančáková, Elisabeth Steinhagen-Thiessen, Elizabeth A Streeten, Unnur Styrkarsdottir, Karin MA Swart, Sian-Tsung Tan, Mark A Tarnopolsky, Patricia Thompson, Cynthia A Thomson, Unnur Thorsteinsdottir, Emmi Tikkanen, Gregory J Tranah, Jaakko Tuomilehto, Natasja M van Schoor, Arjun Verma, Peter Vollenweider, Henry Völzke, Jean Wactawski-Wende, Mark Walker, Michael N Weedon, Ryan Welch, H-Erich Wichmann, Elisabeth Widen, Frances MK Williams, James F Wilson, Nicole C Wright, Weijia Xie, Lei Yu, Yanhua Zhou, John C Chambers, Angela Döring, Cornelia M van Duijn, Michael J Econs, Vilmundur Gudnason, Jaspal S Kooner, Bruce M Psaty, Timothy D Spector, Kari Stefansson, Fernando Rivadeneira, André G Uitterlinden, Nicholas J Wareham, Vicky Ossowski, Dawn Waterworth, Ruth JF Loos, David Karasik, Tamara B Harris, Claes Ohlsson, Douglas P Kiel
Jan 17, 2018
Lean body mass, consisting mostly of skeletal muscle, is important for healthy aging. We performed a genome-wide association study for whole body (20 cohorts of European ancestry with n = 38,292) and appendicular (arms and legs)...
17-Hydroxysteroid Dehydrogenases ADAMTS Proteins Aldehyde Oxidoreductases Alpha-Ketoglutarate-Dependent Dioxygenase FTO Body composition Extracellular Matrix Proteins Genome-Wide Association Study Humans Insulin Receptor Substrate Proteins Phenotype Polymorphism Single Nucleotide Quantitative Trait Loci Regulatory Elements Transcriptional Thinness Versicans
Erratum
M Carola Zillikens, Serkalem Demissie, Yi-Hsiang Hsu, Laura M Yerges-Armstrong, Wen-Chi Chou, Lisette Stolk, Gregory Livshits, Linda Broer, Toby Johnson, Daniel L Koller, Zoltán Kutalik, Jian'an Luan, Ida Malkin, Janina S Ried, Albert V Smith, Gudmar Thorleifsson, Liesbeth Vandenput, Jing Hua Zhao, Weihua Zhang, Ali Aghdassi, Kristina Åkesson, Najaf Amin, Leslie J Baier, Inês Barroso, David A Bennett, Lars Bertram, Rainer Biffar, Murielle Bochud, Michael Boehnke, Ingrid B Borecki, Aron S Buchman, Liisa Byberg, Harry Campbell, Natalia Campos Obanda, Jane A Cauley, Peggy M Cawthon, Henna Cederberg, Zhao Chen, Nam H Cho, Hyung Jin Choi, Melina Claussnitzer, Francis Collins, Steven R Cummings, Philip L De Jager, Ilja Demuth, Rosalie AM Dhonukshe-Rutten, Luda Diatchenko, Gudny Eiriksdottir, Anke W Enneman, Mike Erdos, Johan G Eriksson, Joel Eriksson, Karol Estrada, Daniel S Evans, Mary F Feitosa, Mao Fu, Melissa Garcia, Christian Gieger, Thomas Girke, Nicole L Glazer, Harald Grallert, Jagvir Grewal, Bok-Ghee Han, Robert L Hanson, Caroline Hayward, Albert Hofman, Eric P Hoffman, Georg Homuth, Wen-Chi Hsueh, Monica J Hubal, Alan Hubbard, Kim M Huffman, Lise B Husted, Thomas Illig, Erik Ingelsson, Till Ittermann, John-Olov Jansson, Joanne M Jordan, Antti Jula, Magnus Karlsson, Kay-Tee Khaw, Tuomas O Kilpeläinen, Norman Klopp, Jacqueline SL Kloth, Heikki A Koistinen, William E Kraus, Stephen Kritchevsky, Teemu Kuulasmaa, Johanna Kuusisto, Markku Laakso, Jari Lahti, Thomas Lang, Bente L Langdahl, Lenore J Launer, Jong-Young Lee, Markus M Lerch, Joshua R Lewis, Lars Lind, Cecilia Lindgren, Yongmei Liu, Tian Liu, Youfang Liu, Östen Ljunggren, Mattias Lorentzon, Robert N Luben, William Maixner, Fiona E McGuigan, Carolina Medina-Gomez, Thomas Meitinger, Håkan Melhus, Dan Mellström, Simon Melov, Karl Michaëlsson, Braxton D Mitchell, Andrew P Morris, Leif Mosekilde, Anne Newman, Carrie M Nielson, Jeffrey R O'Connell, Ben A Oostra, Eric S Orwoll, Aarno Palotie, Stephen CJ Parker, Munro Peacock, Markus Perola, Annette Peters, Ozren Polasek, Richard L Prince, Katri Räikkönen, Stuart H Ralston, Samuli Ripatti, John A Robbins, Jerome I Rotter, Igor Rudan, Veikko Salomaa, Suzanne Satterfield, Eric E Schadt, Sabine Schipf, Laura Scott, Joban Sehmi, Jian Shen, Chan Soo Shin, Gunnar Sigurdsson, Shad Smith, Nicole Soranzo, Alena Stančáková, Elisabeth Steinhagen-Thiessen, Elizabeth A Streeten, Unnur Styrkarsdottir, Karin MA Swart, Sian-Tsung Tan, Mark A Tarnopolsky, Patricia Thompson, Cynthia A Thomson, Unnur Thorsteinsdottir, Emmi Tikkanen, Gregory J Tranah, Jaakko Tuomilehto, Natasja M van Schoor, Arjun Verma, Peter Vollenweider, Henry Völzke, Jean Wactawski-Wende, Mark Walker, Michael N Weedon, Ryan Welch, H-Erich Wichmann, Elisabeth Widen, Frances MK Williams, James F Wilson, Nicole C Wright, Weijia Xie, Lei Yu, Yanhua Zhou, John C Chambers, Angela Döring, Cornelia M van Duijn, Michael J Econs, Vilmundur Gudnason, Jaspal S Kooner, Bruce M Psaty, Timothy D Spector, Kari Stefansson, Fernando Rivadeneira, André G Uitterlinden, Nicholas J Wareham, Vicky Ossowski, Dawn Waterworth, Ruth JF Loos, David Karasik, Tamara B Harris, Claes Ohlsson, Douglas P Kiel
Jan 29, 2018
A correction to this article has been published and is linked from the HTML version of this article.
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