Results 81 to 90 of about 1,793,451 (304)

Axisymmetric Magnetorotational Instability in Viscous Accretion Disks

, 2008
Axisymmetric magnetorotational instability (MRI) in viscous accretion disks is investigated by linear analysis and two-dimensional nonlinear simulations. The linear growth of the viscous MRI is characterized by the Reynolds number defined as $R_{\rm MRI}
Nakano T., Shakura N. I., Takayoshi Sano, Youhei Masada   +3 more
core   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Fetal MRI : an essential step in interpreting complex ultrasound findings [PDF]

, 2016
Background: Fetal magnetic resonance imaging (MRI) allows for the interpretation of complex fetal anomalies detected on ultrasound (US). Locally it has been available since 2013 but has remained underused.
Baldacchino, Ian, Gatt, Andre Stefan, Saliba, Isabelle   +2 more
core  

The Role of the Magnetorotational Instability in the Sun [PDF]

, 2014
We calculate growth rates for nonaxisymmetric instabilities including the magnetorotational instability (MRI) throughout the Sun. We first derive a dispersion relation for nonaxisymmetric instability including the effects of shear, convective buoyancy ...
Kagan, Daniel, Wheeler, J. Craig
core   +2 more sources

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source

International Veterinary Epilepsy Task Force recommendations for a veterinary epilepsy-specific MRI protocol [PDF]

, 2015
Epilepsy is one of the most common chronic neurological diseases in veterinary practice. Magnetic resonance imaging (MRI) is regarded as an important diagnostic test to reach the diagnosis of idiopathic epilepsy.
A Bathen-Noethen, A Ciantis De, A Pakozdy, AA Raymond, AJ Hall, AK Shah, Akos Pakozdy, AM McIntosh, Andrea Fischer, Andrea Tipold, AR Deibler, CJ Abramson, Clare Rusbridge, DK Thompson, E Wagner, Edward E. Patterson, EJ Ives, EL So, F Cendes, F Rosenow, GS Berns, GS Berns, H Goldberg, Heidrun Potschka, Holger A. Volk, I Craven, J Laothamatas, J Oertzen Von, J Velmurugan, J Wellmer, J Wellmer, Jacques Penderis, Jelena Jovanovik, JS Duncan, JW Wheless, K Ono, Karen Muñana, Kaspar Matiasek, KL Stadler, KM Casey, KM Fiest, L Gygax, L Heske, L Kearsley-Fleet, LM Mellema, LS Garosi, Luisa De Risio, M Guye, M Konar, M Schwartz, Marjorie Milne, ME Milne, Mette Berendt, Michael Podell, MJ Fernandes, MS Anaya Garcia, N Farid, N Ogata, NK Focke, O Jacqmot, P Singh, P Szmuk, PF Cook, PM Smith, PT Wei, R Goncalves, R Kuzniecky, R Neppl, R Vasta, R Viitmaa, R Viitmaa, RA Thames, RL Wolf, Robyn G. Farqhuar, S Hecht, S Mizoguchi, S Torisu, Sam Long, SD Shorvon, Simon Platt, Sofie F. M. Bhatti, SP Knowler, T Guadalupe, T Hammen, T Kuwabara, TJ Oertzen von, TS Jokinen, U Ebert, V Jantti, V Martle, Veronika M. Stein, WD Gaillard, YM Lim, YS Ding, Z Haneef   +94 more
core   +6 more sources

Altered functional connectivity density in the prefrontal-limbic-visual networks of vestibular migraine

Scientific Reports
This study aimed to explore abnormal patterns of functional connectivity density (FCD) and functional connectivity (FC) in patients with vestibular migraine (VM) and their associations with clinical symptoms.
Xia Zhe, Xiaoling Zhang, Miao Cheng, Min Tang, Xin Zhang, Xiaoyan Lei   +5 more
doaj   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Functional and Structural Evidence of Neurofluid Circuit Aberrations in Huntington Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Disrupted neurofluid regulation may contribute to neurodegeneration in Huntington disease (HD). Because neurofluid pathways influence waste clearance, inflammation, and the distribution of central nervous system (CNS)–delivered therapeutics, understanding their dysfunction is increasingly important as targeted treatments emerge.
Kilian Hett, Abigail Dubois, Melanie Leguizamon, Alexander Song, Paula Trujillo, Colin D. McKnight, Ciaran M. Considine, Manus J. Donahue, Daniel O. Claassen   +8 more
wiley   +1 more source

Air Pollution and the Risk and Progression of Multiple Sclerosis: A Systematic Review and Meta‐Analysis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Purpose Air pollution has been linked to several neurological conditions, including stroke and neurodegenerative diseases. Evidence regarding its association with multiple sclerosis (MS) remains conflicting, limited by small sample sizes. Methods PubMed, Embase, Scopus, and Cochrane controlled register of trials (CENTRAL) were searched on ...
Ahmad A. Toubasi, Thuraya N. Al‐Sayegh
wiley   +1 more source