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‘A New Age of Nuclearity? Great Powers and Greater Consequences’

Perry World House’s 2023 Global Order Colloquium took a deep dive into current nuclear issues, looking at how the world will manage nuclear threats amid growing geopolitical tension, climate change challenges, and international conflict.
 United Nations Under-Secretary-General and High Representative for Disarmament Affairs Izumi Nakamitsu speaks at Penn's Perry World House.
United Nations Under-Secretary-General and High Representative for Disarmament Affairs Izumi Nakamitsu  in a conversation with Washington Post foreign affairs reporter Adam Taylor. 
(Image: Eddy Marenco)

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  • Exposure to air pollution worsens Alzheimer’s disease
    Emissions from a power plant.

    Image: Pencho Chukov via Getty Images

    Exposure to air pollution worsens Alzheimer’s disease

    New research from Penn Medicine finds living in areas with high concentration of air pollution is associated with increased buildup of amyloid and tau proteins in the brains of Alzheimer’s patients, accelerating cognitive decline.

    Sep 9, 2025

    Penn physicist Charles Kane to receive the 2026 Lorentz Medal
    Charles Kane

    Charles Kane, Christopher H. Browne Distinguished Professor of Physics at Penn’s School of Arts & Sciences.

    (Image: Brooke Sietinsons)

    Penn physicist Charles Kane to receive the 2026 Lorentz Medal

    Awarded every four years by the Royal Netherlands Academy of Arts and Sciences, the medal honors Kane’s pioneering research on topological insulators.

    Sep 4, 2025