Front Matter

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• Opinion: On being an advisor to today’s junior scientists
  Well-established, senior scientists must be part of a willing educational and training process that begins when they accept folks into their laboratories. Image courtesy of Dave Cutler (artist).

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• Inner Workings: In search for “magic” nuclei, theory catches up to experiments
  For decades, scientists have sought to find the “magic numbers” of protons and neutrons that form these especially stable nuclei. With computational power increasing, theorists have finally started working in parallel with experimentalists. Image courtesy of the Oak Ridge National Laboratory and US Department of Energy.

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• Opinion: Telepresence is a potentially transformative tool for field science
  The broader adoption of telepresence technologies could have a dramatic effect on science research and data collection, fundamentally changing the way scientists study natural systems. Image courtesy of Alex DeCiccio (Inner Space Center, University of Rhode Island, Kingston, RI).

PNAS in the News

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• Global warming and extreme climate events
  A study attempts to quantify the link between global warming and unprecedented extreme climate events worldwide.
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• Semiconducting polymer for transient electronics
  Researchers report a disintegrable and biocompatible semiconducting polymer and an ultrathin biodegradable cellulose substrate with high chemical and thermal stability for use in transient electronics; using the polymer and substrate, the authors designed high-performance, ultralightweight, and fully disintegrable polymer transistors and logic circuits, findings that might improve the development of environment-friendly and biointegrated organic electronics.
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• Sweat extraction and health monitoring
  Researchers report a wearable biosensor platform that uses sweat for noninvasive health monitoring.
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