FH Aachen

Simulation‐Guided Tracer Optimization for Magnetic Particle Spectroscopy: Interplay of Core, Shell and Anisotropy Across Physiological‐Range Viscosities for Single‐ and Dual‐Frequency Excitation

ABSTRACT Detection of magnetic nanoparticles (MNP) relies on their nonlinear magnetic response, changing with the local environment in vivo. Employing an effective viscosity model within stochastic coupled Néel–Brownian simulations, we quantify how viscosity (0.8–50 000 mPa·s) af...

Multi-Methodological Characterization of Sleep Deprivation: From Standard EEG Power Spectra to Aperiodic Dynamics in Humans and Mice.

Sleep deprivation is a potent, rapid-acting therapeutic intervention for major depressive disorder, yet its underlying neural mechanisms remain poorly understood, hindering the development of predictive biomarkers. Here, we systematically characterize the electro-physiological si...

Multiple Bleaching of Hair: Fatigue Failure Investigations and Weibull Analyses

The fatigue failure (F/F) test is an important method for evaluating hair strength. In this study, we evaluate commercial European hair after up to four bleaches. F/F-data were directly fitted using a two-parameter cumulative Weibull distribution (CWD) function, described by life...

The Telephone AI Paradox: How Voice Agents Can Help Counter Unwanted Telemarketing Through Role-Based Automation, Transparency, and Governance

Unwanted telemarketing calls are a persistent source of consumer frustration and a legally regulated issue in Germany. At first glance, the idea of addressing this problem with AI-based voice technology appears contradictory: why should an automated caller help restore trust in a...