Color-changing fluorescent dyes unlock new frontiers in cellular thermosensing
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Updates every hour. Last Updated: 12-Sep-2025 21:11 ET (13-Sep-2025 01:11 GMT/UTC)
Digital voice recordings contain valuable information that can indicate an individual’s cognitive health, offering a non-invasive and efficient method for assessment. Research has demonstrated that digital voice measures can detect early signs of cognitive decline by analyzing features such as speech rate, articulation, pitch variation and pauses, which may signal cognitive impairment when deviating from normative patterns.
However, voice data introduces privacy challenges due to the personally identifiable information embedded in recordings, such as gender, accent and emotional state, as well as more subtle speech characteristics that can uniquely identify individuals. These risks are amplified when voice data is processed by automated systems, raising concerns about re-identification and potential misuse of data.
In a new study, researchers from Boston University Chobanian & Avedisian School of Medicine have introduced a computational framework that applies pitch-shifting, a sound recording technique that changes the pitch of a sound, either raising or lowering it, to protect speaker
identity while preserving acoustic features essential for cognitive assessment.
A new analysis of earthquake rupture directivity provides essential insights for seismic hazard and risk assessments in urban areas, particularly concerning the Main Marmara Fault near Istanbul in western Türkiye. Based on the correlation between rupture directivity and the direction of the transported seismic energy, a team of researchers led by Dr Xiang Cheng and Prof. Patricia Martínez-Garzón from the GFZ Helmholtz Centre for Geosciences in Potsdam, Germany, has shown that quakes in the Marmara region transport a particularly large amount of energy and thus destructive force in the direction of Istanbul. Their study has been published in the journal Geophysical Research Letters. They analysed 31 well-constrained ML ≥ 3.5 earthquakes in this region. The unveiled critical patterns could influence preparedness for future seismic events in one of the world’s most populous cities.
Researchers at the University of Birmingham have developed a new method for the rapid scalable preparation of uniform nanostructures directly from block polymers.
There are strong images – both admiration and irritation – associated with the popularisation of vegetarianism and the use of meat substitutes. Marketing researchers from the University of Vaasa, Finland, have studied attitudes towards vegetarianism and why meat substitutes still do not make it off the shelf and into the shopping basket. Their research shows that meat alternative consumers elicit not only admiration but also envy, fear, contempt, and anger in others.