Results 41 to 50 of about 3,235,809 (264)

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Automated 360-degree goniophotography with the NIDEK Gonioscope GS-1 for glaucoma.

PLoS ONE, 2023
This study was registered with ClinicalTrials.gov (ID: NCT03715231). A total of 20 participants (37 eyes) who were 18 or older and had glaucoma or were glaucoma suspects were enrolled from the NYU Langone Eye Center and Bellevue Hospital.
Chisom T Madu, Taylor Phelps, Joel S Schuman, Ronald Zambrano, Ting-Fang Lee, Joseph Panarelli, Lama Al-Aswad, Gadi Wollstein   +7 more
doaj   +2 more sources

Aberrometry in ophthalmology and its applications in cataract surgery

TNOA Journal of Ophthalmic Science and Research, 2023
We live in a world of exponentially increasing technology advancements and improving patient care has become a priority for all health care providers.
Josephine S Christy, Aditi Parab
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

CORRELATION OF ANGLE KAPPA, CORNEAL HIGH ORDER ABERRATIONS AND TOTAL EYE ABERRATIONS IN VARIOUS REFRACTIVE ERRORS [PDF]

Egyptian Journal of Clinical Ophthalmology
Purpose: To identify the correlation between angle kappa, corneal high order aberrations and total eye aberrations in myopic, hyperopic and astigmatic patients.
Ezzat, M., Ammar, H., Abdellatif, M., Moussa, E.   +3 more
doaj   +1 more source

Distribution of Angle Alpha and Angle Kappa Chord Magnitude and Axes in Myopic and Hyperopic Refractive Surgery Candidates.

Journal of refractive surgery
PURPOSE To evaluate the distribution of angle alpha and angle kappa chord magnitudes, axes, and coordinates in myopic and hyperopic refractive surgery candidates.
Yara Bteich, H. Ibrahim, Karim W. Barake, Joseph Khalil, Jad F. Assaf, D. Reinstein, T. Archer, S. Awwad   +7 more
semanticscholar   +1 more source

Characterizing Cutaneous α‐Synuclein Deposition and Seeding Activity in Parkinson's Disease Subtypes

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cutaneous phosphorylated α‐synuclein (p‐syn) and α‐synuclein seeding activity are promising biomarkers for Parkinson's disease (PD), but their clinical value remains uncertain due to disease heterogeneity. This study evaluates these two biomarkers in PD patients to inform phenotype‐specific diagnosis and disease severity assessment ...
Yuting Jin, Tianyuan Yang, Minglei Liu, Haiyang Luo, Jing Yuan, Ke Zhang, Xinsheng Han, Jing Yang, Yuming Xu   +8 more
wiley   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Intraobserver and interobserver agreement among anterior chamber angle evaluations using automated 360-degree gonio-photos.

PLoS ONE, 2021
PurposeTo investigate the reproducibility for the iridocorneal angle evaluations using the pictures obtained by a gonioscopic camera, Gonioscope GS-1 (Nidek Co., Gamagori, Japan).MethodsThe pragmatic within-patient comparative diagnostic evaluations for ...
Masato Matsuo, Shiro Mizoue, Koji Nitta, Yasuyuki Takai, Kazunobu Sugihara, Masaki Tanito   +5 more
doaj   +1 more source

Effect of Angle Kappa on the Refractive Prediction Accuracy in Cataract Patients After Myopic LASIK/PRK.

American journal of ophthalmology-glaucoma
PURPOSE To evaluate the impact of angle kappa on prediction accuracy in patients after myopic laser-assisted in-situ keratomileusis (LASIK)/photorefractive keratectomy (PRK).
Haorui Yuan, Jia-Qing Zhang, Yuxing Zheng, Haowen Lin, Xiaohang Xie, Xiaofei Hu, Wenlu Yu, Xiaozhang Qiu, Zhenzhen Liu, Weirong Chen, Xuhua Tan, Li-Xia Luo   +11 more
semanticscholar   +1 more source