A new mathematical model predicts that mammalian sperm cells have two distinct swimming modes. This prediction opens new questions about potential connections between sperm cells’ motor activity and their transitions to hyperactivation phases that may play an important role in fertilization. The finding is part of a larger effort to use math and fluid dynamics to describe how mammalian sperm move. The research is led by a team of engineers at the University of California San Diego. The new work was published in the journal Physical Review Fluids on 15 November, 2023.
Wildfire is an extremely complex problem and research and mitigation have never been more important. UC San Diego researchers across disciplines work to combat wildfires and the problems that stem from them through novel research and technologies.
A "living material," made of a natural polymer combined with genetically engineered bacteria, could offer a sustainable and eco-friendly solution to clean pollutants from water.
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