Islamic Azad University North Tehran Branch

Safe and adaptive control of non-stationary stochastic systems via Lyapunov-constrained distributional reinforcement learning

Abstract Non-stationary environments pose significant challenges for reinforcement learning (RL), particularly in safety-critical applications like robotics and energy systems, where adaptability, stability, and robustness to uncertainty are essential. This paper introduces Lyapu...

Plasma p-tau217 as a two-cutoff approach to improve tau-PET screening and trial recruitment in Alzheimer’s disease

Abstract Blood-based biomarkers could broaden access to Alzheimer’s disease diagnostics, but their ability to approximate tau PET, and to address gray-zone results, remains uncertain. We evaluated plasma p-tau217 against tau PET using a harmonized ADNI baseline cohort and an inde...

CortexNet: convolutional neural networks for alzheimer’s disease diagnosis using brain MRI

Alzheimer’s disease is one of the most common degenerative brain diseases, and its early detection plays an important role in improving clinical management, increasing treatment effectiveness, and reducing the consequences of disease progression. In this study, a family of convol...