We study ionic current fluctuations in solid-state nanopores over a wide frequency range and present a complete description of the noise characteristics. At low frequencies (f ≲ 100 Hz) we observe ...

Formation of knots in mathematical self-avoiding random walks has been extensively studied (10 – 16). In the 1960s, Frisch and Wasserman (10) and Delbruck (11) conjectured that the probability of ...

Humans alter the water cycle by constructing dams and through water withdrawals. Climate change is expected to additionally affect water supply and demand. Here, model analyses of climate change and ...

Journal Club posts are short news stories featuring a recent important, timely journal article selected by one of our Journal Club panelists, who are post-doctoral associates and graduate students in ...

In PNAS, the liquid crystal group of the Soft Materials Research Center at the University of Colorado Boulder, led by N. A. Clark, reports on the discovery of a ferroelectric nematic fluid N F, an ...

Bhardwaj et al. (3) address this key issue for the human cortex using two approaches to determine whether there is (i) continuous production of a long-lived population of new neurons over the lifespan ...

There is widespread concern about racial disparities in fatal officer-involved shootings and that these disparities reflect discrimination by White officers. Existing databases of fatal shootings lack ...

The last 500 million years of the strontium-isotope record are shown to correlate significantly with the concurrent record of isotopic fractionation between inorganic and organic carbon after the ...

The clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein 9 nuclease (Cas9) system has recently emerged as an efficient and versatile tool for genome editing in ...

The recently developed linker-mediated vitrimers based on metathesis reactions offer new possibilities of processing cross-linked polymers with high mechanical performance in industry, while the ...

Contributed by M. Brian Maple, July 3, 2018 (sent for review April 23, 2018; reviewed by Filip Ronning and Brian C. Sales) ...

Agricultural origins in North China pushed back to the Pleistocene–Holocene boundary ...