Results 121 to 130 of about 54,240 (307)

Five‐Year Disease Progression in Synuclein Seeding Positive Sporadic Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To provide a comprehensive description of disease progression in synuclein seeding assay (SAA) positive sporadic Parkinson Disease participants, using Neuronal Synuclein Disease integrated biological and functional impairment staging framework.
Paulina Gonzalez‐Latapi, Caroline Gochanour, Seung Ho Choi, Hyunkeun Cho, Chelsea Caspell‐Garcia, Christopher Coffey, Michael Brumm, David‐Erick Lafontant, Yuge Xiao, Thomas Tropea, John Seibyl, Caroline Tanner, Charles S. Venuto, Karl Kieburtz, Lana M. Chahine, Kathleen L. Poston, Andrew Siderowf, Kenneth Marek, Tanya Simuni, The Parkinson's Progression Markers Initiative   +19 more
wiley   +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

Highly sensitive, biomimetic hair sensor arrays for sensing low-frequency air flows [PDF]

, 2009
In this paper, we report, to the best of our knowledge, the most sensitive artificial hair-based flow-sensor arrays operating in air, to date. Artificial hair sensors are bio-inspired from the cerci of crickets, one of nature’s best in sensing small air ...
Jaganatharaja, R.K., Bruinink, C.M., C.M. Bruinink, G.J.M. Krijnen, Krijnen, Gijsbertus J.M., Lammerink, Theodorus S.J., Wiegerink, Remco J., T.S.J. Lammerink, M.L. Kolster, Kolster, M.L., R.K. Jaganatharaja, R.J. Wiegerink, B.M. Hagedoorn, Hagedoorn, B.M., Krijnen, Gijsbertus J.M.; id_orcid   +14 more
core   +1 more source

A Barcoded Polymer-Based Cross-Reactive Spectroscopic Sensor Array for Organic Volatiles

Sensors, 2019
The development of cross-reactive sensor arrays for volatile organics (electronic noses, e-noses) is an active area of research. In this manuscript, we present a new format for barcoded polymer sensor arrays based on porous polymer beads.
Jessica E. Fitzgerald, Jianliang Shen, Hicham Fenniri   +2 more
doaj   +1 more source

Cantilever array sensors

Materials Today, 2005
Miniaturized microfabricated sensors have enormous potential in gas detection, biochemical analysis, medical applications, quality and process control, and product authenticity issues. Here, we highlight an ultrasensitive mechanical way of converting (bio-)chemical or physical processes into a recordable signal using microfabricated cantilever arrays.
Lang, Hans Peter, Hegner, Martin, Gerber, Christoph   +2 more
openaire   +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

Two-dimensional ultrasound receive array using an angle-tuned Fabry-Perot polymer film sensor for transducer field characterization and transmission ultrasound imaging

, 2005
A 2-D optical ultrasound receive array has been investigated. The transduction mechanism is based upon the detection of acoustically induced changes in the optical thickness of a thin polymer film acting as a Fabry-Perot sensing interferometer (FPI).
Beard, P.C.
core  

Pseudo-heterodyne signal processing scheme for interrogation of fiber Bragg grating sensor arrays [PDF]

, 1998
An intensity-based interrogation technique for arrays of fiber bragg grating (FBG) sensors is reported. The technique is based upon each FBG forming one mirror of a Michelson interferometer.
Clare K. Chatterjea, Chatterjea, C. K., Ralph P. Tatam, Tatam, Ralph P., James, Stephen W., Stephen W. James   +5 more
core   +1 more source

A V‐Shaped Fourth‐Order Sparse Array Design for 2‐D Direction of Arrival Estimation

IET Radar, Sonar & Navigation
Degrees of freedom (DOF) serves as a critical metric for evaluating the design of sparse arrays. Developing novel sparse arrays with enhanced degrees of freedom and mathematically expressible structures constitutes a significant research direction in the
Ziwen Chen, Weijia Cui, Bin Ba
doaj   +1 more source

Compact Printed Arrays with Embedded Coupling Mitigation for Energy-Efficient Wireless Sensor Networking

International Journal of Antennas and Propagation, 2010
Wireless sensors emerged as narrowband, resource-constrained devices to provide monitoring services over a wide life span. Future applications of sensor networks are multimedia-driven and include sensor mobility.
Constantine G. Kakoyiannis, Philip Constantinou   +1 more
doaj   +1 more source