Polarized light boosts accuracy of wearable health sensors for all skin tones

Photoplethysmography (PPG) is an optical sensing technique that measures blood volume changes and underpins devices ranging ...
IEEE

Z-Crypt: Chirp Z-Transform-Based Image Encryption Leveraging Chaotic Logistic Maps and Substitution Permutation Network

Abstract: In the current era of digital communication, image security is a top priority as sending images, which often contain personal or confidential information, over the Internet poses security ...
The Independent

‘It’s gone from shameful to chic’: How Gen Z is reframing divorce — and embracing prenups

At just 24, Michel Janse’s divorce came like a bolt from the blue. Janse, a content creator from Texas, discovered her husband had been cheating on her — a betrayal that explained the growing distance ...
IEEE

Resource-Efficient Derivative PPG-Based Signal Quality Assessment Using One-Dimensional CNN With Optimal Hyperparameters for Quality-Aware PPG Analysis

Abstract: Photoplethysmogram (PPG) is a bio-optical technology used heavily in wearable health devices for monitoring vital sign parameters. Therefore, ensuring the quality of PPG signals is crucial ...
ZME Science

Your Brain Transforms Dramatically at 9, 32, 66 and 83 Years Old

Our brains don’t just age — they evolve through a sequence of neurological eras across a person’s lifetime. According to a new study from neuroscientists at the University of Cambridge, the human ...
Medical Xpress

Social media use drives distrust among Gen Z teenage girls

Social media use in adolescence is linked to delayed bedtimes, negative self-image and, especially among teenage girls, greater distrust, a new UCL study shows. In turn, these changes are associated ...