Results 71 to 80 of about 3,322,116 (291)

GENERATION AND CONTROL OF CHAOTIC BEHAVIOUR OF PHOTONS AND PHONONS IN BIOLOGICAL MEDIA

Journal of Engineering Science (Chişinău)
It was reported the results on the numerical investigations of the dynamical behavior of photons and phonons emitted by a biological medium under the influence of millimeter or terahertz radiation.
GUBCEAC, Natalia, CIOBANU, Nellu, TRONCIU, Vasile   +2 more
doaj   +1 more source

Solution structure and dynamics of a semiconductor laser subject to feedback from two external filters [PDF]

, 2010
We present an analysis of a semiconductor laser subject to filtered optical feedback from two filtering elements (2FOF). The motivation for this study comes from applications where two filters are used to control and stabilise the laser output.
Slowinski, P., Slowinski, P, Wieczorek, Sebastian, Krauskopf, B, Wieczorek, S.   +4 more
core  

Comparing the Effect of Semi‐Immersive Virtual Reality, Computerized Cognitive Training, and Traditional Rehabilitation on Cognitive Function in Multiple Sclerosis: A Randomized Clinical Trial

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Cognitive impairment is a common non‐motor symptom in Multiple Sclerosis (MS), negatively affecting autonomy and Quality of Life (QoL). Innovative rehabilitation strategies, such as semi‐immersive virtual reality (VR) and computerized cognitive training (CCT), may offer advantages over traditional cognitive rehabilitation (TCR ...
Maria Grazia Maggio, Desiree Latella, Lilla Bonanno, Paulo Cezar Rocha dos Santos, Marcos Maldonado‐Díaz, Meir Plotnik, Rosaria De Luca, Angelo Quartarone, Rocco Salvatore Calabrò   +8 more
wiley   +1 more source

Raman Gas Analysis with External Power Build-Up Cavity of Line-Narrowed 407-nm Laser Diode

Sensors
An external power build-up cavity of a line-narrowed 407-nm laser diode for Raman gas analysis was demonstrated to possess good gas detection capabilities.
Zhongyi Yao, Xinbing Wang, Duluo Zuo
doaj   +1 more source

Dynamics of Semiconductor Lasers under External Optical Feedback from Both Sides of the Laser Cavity

Photonics, 2022
To increase the spectral efficiency of coherent communication systems, lasers with ever-narrower linewidths are required as they enable higher-order modulation formats with lower bit-error rates.
Mónica Far Brusatori, Nicolas Volet
doaj   +1 more source

Mode structure of a semiconductor laser with feedback from two external filters [PDF]

, 2008
We study a semiconductor laser subject to filtered optical feedback from two separate filters. This work is motivated by an application where two fiber gratings are used to stabilize the output of a laser source.
Slowinski, P., Slowinski, P, Wieczorek, Sebastian, Krauskopf, B, Wieczorek, S.   +4 more
core  

Discrete mode lasers for applications in access networks [PDF]

, 2007
Fast development of the modern telecommunication networks such as fiber-to-the-home or radio-over-fiber systems require an inexpensive yet reliable optical transmitter for electro-optic conversion.
Kelly, Brian, Anandarajah, Prince M., J. O'Gorman, A. Kaszubowska-Anandarajah, O'Gorman, J., P. Anandarajah, Barry, Liam P., Guignard, Celine, O\u27Gorman, J., C. Guignard, Kaszubowska-Anandarajah, Aleksandra, B. Kelly, O'Gorman, James, L. Barry   +13 more
core   +2 more sources

Digital Cognitive Testing in Mitochondrial Disease: Validity and Challenges for Clinical Trial Use

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Primary mitochondrial disease is a group of genetic disorders caused by pathogenic variants in nuclear or mitochondrial DNA, often resulting in progressive neurodegeneration and cognitive decline. Current management is primarily supportive, though recent research offers hope for disease‐modifying treatments in the future.
Oksana Pogoryelova, Jan Smeitink, Herma Renkema, Rosabeth White, Frankie Barton, Rachel Lyon, Jane Newman, Aye Moe, Yi Shiau Ng, Grainne Siobhan Gorman   +9 more
wiley   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park, Eun‐Hyuk Choi, Jorge Otero‐Millan, David S. Zee, Jeong‐Yoon Choi, Ji‐Soo Kim   +5 more
wiley   +1 more source

Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen, Mark Paine, Soohyun Lee, Amir Fazlollahi, Baibin (Ben) Wang, John D. O'Sullivan, Peter J. Nestor   +6 more
wiley   +1 more source