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Front Matter
Topology could help better connect the people and places in these chaotic communities. But some who’ve studied slums and their multifaceted origins fear that applying such mathematical approaches won’t help, and could even make the problem worse.
Image credit: Shutterstock/Moobatto.
After an infamous case of astronomical mistaken identity, new telescopes are helping to pick up the trail in hopes of finding these ripples in the fabric of spacetime that were produced just after the Big Bang.
Image credit: Anil Ananthaswamy.
In the News
A study estimates 107,000 cases of premature death in the United States due to anthropogenic particulate matter PM2.5 in 2011, with a societal cost of $886 billion, highlighting the importance of modeling emissions at fine spatial scales to prioritize emissions mitigation efforts.
Image courtesy of Pixabay/SD-Pictures.
A study suggests a potential treatment approach for severe peanut allergies; treatment inhibited more than 80% of the allergic response to crude peanut extract in serum from 14 of 16 patients and reduced basophil activation in whole blood from three patients.
Image courtesy of Peter E. Deak and Basar Bilgicer.
A study quantifies the drivers of public interest in more than 600 bird species in the United States by comparing summaries of online searches for each species to the species’ abundance and spatial distribution.
Image courtesy of Pixabay/Kathy2408.
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A paleontological site preserves the immediate aftermath of the asteroid impact that may have caused a global mass extinction.
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PNAS Profile of NAS foreign associate and chemist Dame Carol Robinson
Image courtesy of Robert Taylor (taylor-photo.co.uk).
