The Proceedings of the National Academy of Sciences (April 2023 issue Drop 1 of 2)

In this issue of the unfortunately acronymed Proceedings of the National Academy of Sciences (PNAS... Think about it? Lol), we have a truly mixed bag of papers for you to go through at your leisure, so let's get started shall we?

1) Elucidating the origins of phycocyanobilin biosynthesis and phycobiliproteins

2) Digitizing chemical discovery with a Bayesian explorer for interpreting reactivity data

3) Sea-level rise in Southwest Greenland as a contributor to Viking abandonment

4) Merged magnetic resonance and light sheet microscopy of the whole mouse brain

5) Resource theory of quantum scrambling

6) Electoral rewards for political grandstanding

The Proceedings of the National Academy of Sciences (April 2023 issue Drop 2 of 2)

1) Bayesian phylodynamics reveals the transmission dynamics of avian influenza A(H7N9) virus at the human–live bird market interface in China

2) Tight junction protein occludin is an internalization factor for SARS-CoV-2 infection and mediates virus cell-to-cell transmission

3) Epistasis reduces fitness costs of influenza A virus escape from stem-binding antibodies

4) Human airway and nasal organoids reveal escalating replicative fitness of SARS-CoV-2 emerging variants

5) The temporal and contextual stability of activity levels in hippocampal CA1 cells

6) Fear circuit–based neurobehavioral signatures mirror resilience to chronic social stress in mouse