Proceedings of the National Academy of Sciences
Articles in this Issue
A size-dependent ideal solution model for liquid–solid phase equilibria prediction in aqueous organic solutions
Predictive synthesis of aqueous organic solutions with desired liquid–solid phase equilibria could drive progress in industrial chemistry, cryopreservation, and beyond, but is limited by the predictiv...
Weak individual preferences stabilize culture
Outcomes in the cultural arena are due to many factors but are there general rules that can suggest what makes some cultural traits successful and others not? Research in cultural evolution theory dis...
Volumetric imaging of the 3D orientation of cellular structures with a polarized fluorescence light-sheet microscope
Polarized fluorescence microscopy is a valuable tool for measuring molecular orientations in biological samples, but techniques for recovering three-dimensional orientations and positions of fluoresce...
Experimental electronic structures of the Fe <sup>IV</sup> =O bond in S=1 heme vs. nonheme sites: Effect of the porphyrin ligand
High-valent Fe IV =O species are common intermediates in biological and artificial catalysts. Heme and nonheme S=1 Fe IV...
A hormone-to-neuropeptide pathway inhibits sexual receptivity in immature <i>Drosophila</i> females
Newborns, typically asexual, undergo a process of sexual transition to reach sexual maturity, but the regulatory mechanism underlying this transition is not clear. Here, we studied how female sexual b...
Quantum tunneling and its absence in deep wells and strong magnetic fields
We present results on quantum tunneling between deep potential wells, in the presence of a strong constant magnetic field. We construct a family of double-well potentials containing examples for which...
Entanglement transition in random rod packings
Random packings of stiff rods are self-supporting mechanical structures stabilized by long-range interactions induced by contacts. To understand the geometrical and topological complexity of the packi...
STING-induced noncanonical autophagy regulates endolysosomal homeostasis
The cGAS–STING pathway mediates innate immune responses to cytosolic DNA. In addition to its well-established role in inducing inflammatory cytokines, activation of the cGAS–STING pathway also induces...