Understanding how ozone behaves indoors is vital for assessing human health risks, as people spend most of their time inside. 

Small home appliances equipped with electric heating coils and brushed DC motors, like hair dryers, air fryers and toasters—can emit harmful tiny ultrafine particles that deteriorate indoor air quality. Research shows that small appliances using electric heating coils and brushed DC motors emit extremely harmful ultrafine particles containing heavy metals. These particles can penetrate through respiratory tracts and cell barrier to settle in the lungs, causing health risks–particularly for children with small-volume lungs.

Researchers at Bielefeld University have analyzed how reliably AI methods can detect pulse rates from simple video recordings. The technique, known as rPPG—remote photoplethysmography, an optical form of contactless pulse measurement—is considered a future tool of telemedicine. But a new study in the journal npj Digital Medicine reveals clear weaknesses as soon as heart rates rise.

A new doctoral dissertation from the University of Vaasa, Finland, argues that healthcare cybersecurity will remain fragile unless technology, humans and organisational processes are treated as a single unified system. According to Doctoral Researcher Pius Ewoh, the healthcare sector needs socio-technical solutions rather than purely technical defences to protect patient data and maintain trust.

Described in a study published Dec. 8 in Nature Electronics, BISC includes a single-chip implant, a wearable “relay station,” and the custom software required to operate the system. “Most implantable systems are built around a canister of electronics that occupies enormous volumes of space inside the body,” says Ken Shepard, Lau Family Professor of Electrical Engineering, professor of biomedical engineering, and professor of neurological sciences at Columbia University, who is one of the senior authors on the work and guided the engineering efforts. “Our implant is a single integrated circuit chip that is so thin that it can slide into the space between the brain and the skull, resting on the brain like a piece of wet tissue paper.”