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New testing system using Janus particles rapidly and accurately detects COVID-19

A research group has developed a new COVID-19 testing system using Janus particles — microparticles with two sides possessing distinctive molecular properties. These particles are engineered to bind specifically to target antigens, such as viral proteins, creating a low-cost, accurate, and rapid means of testing for viral diseases. The system’s versatility means it can potentially

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Networks of Beliefs theory integrates internal and external dynamics

The beliefs we hold develop from a complex dance between our internal and external lives. A recent study uses well-known formalisms in statistical physics to model multiple aspects of belief-network dynamics. This multidimensional approach to modeling belief dynamics could offer new tools for tackling various real-world problems such as polarization or the spread of disinformation.

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