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1. A z = 0 Multiwavelength Galaxy Synthesis. I. A WISE and GALEX Atlas of Local Galaxies

   https://doi.org/10.3847/1538-4365/ab3925  

   Leroy, Adam K.; Sandstrom, Karin M.; Lang, Dustin; Lewis, Alexia; Salim, Samir; Behrens, Erica A.; Chastenet, Jérémy; Chiang, I-Da; Gallagher, Molly J.; Kessler, Sarah; et al (October 2019, The Astrophysical Journal Supplement Series)
2. Agrobacterium tumefaciens –Mediated Transformation of Three Milkweed Species ( Asclepias hallii , A. syriaca , and A . tuberosa : Apocynaceae)

   https://doi.org/10.1002/cppb.20105  

   Keen, Patricia; Hastings, Amy Picard; Agrawal, Anurag A.; Van Eck, Joyce (February 2020, Current Protocols in Plant Biology)
3. A close look at the competition of isovector and isoscalar pairing in A =18 and 20 even-even N ≈ Z nuclei

   https://doi.org/10.1088/1674-1137/43/7/074106  

   Pan, Feng; Zhou, Dan; Yang, Siyu; Sargsyan, Grigor; He, Yingwen; Launey, Kristina D.; Draayer, Jerry P. (July 2019, Chinese Physics C)
4. A Genus Definition for Bacteria and Archaea Based on a Standard Genome Relatedness Index

   https://doi.org/10.1128/mBio.02475-19  

   Barco, R. A.; Garrity, G. M.; Scott, J. J.; Amend, J. P.; Nealson, K. H.; Emerson, D.; Giovannoni, Stephen J. (February 2020, mBio)

   ABSTRACT Genus assignment is fundamental in the characterization of microbes, yet there is currently no unambiguous way to demarcate genera solely using standard genomic relatedness indices. Here, we propose an approach to demarcate genera that relies on the combined use of the average nucleotide identity, genome alignment fraction, and the distinction between type- and non-type species. More than 3,500 genomes representing type strains of species from >850 genera of either bacterial or archaeal lineages were tested. Over 140 genera were analyzed in detail within the taxonomic context of order/family. Significant genomic differences between members of a genus and type species of other genera in the same order/family were conserved in 94% of the cases. Nearly 90% (92% if polyphyletic genera are excluded) of the type strains were classified in agreement with current taxonomy. The 448 type strains that need reclassification directly impact 33% of the genera analyzed in detail. The results provide a first line of evidence that the combination of genomic indices provides added resolution to effectively demarcate genera within the taxonomic framework that is currently based on the 16S rRNA gene. We also identify the emergence of natural breakpoints at the genome level that can further help in the circumscription of taxa, increasing the proportion of directly impacted genera to at least 43% and pointing at inaccuracies on the use of the 16S rRNA gene as a taxonomic marker, despite its precision. Altogether, these results suggest that genomic coherence is an emergent property of genera in Bacteria and Archaea . IMPORTANCE In recent decades, the taxonomy of Bacteria and Archaea , and therefore genus designation, has been largely based on the use of a single ribosomal gene, the 16S rRNA gene, as a taxonomic marker. We propose an approach to delineate genera that excludes the direct use of the 16S rRNA gene and focuses on a standard genome relatedness index, the average nucleotide identity. Our findings are of importance to the microbiology community because the emergent properties of Bacteria and Archaea that are identified in this study will help assign genera with higher taxonomic resolution. 

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5. Twisted Diindeno‐Fused Dibenzo[ a , h ]anthracene Derivatives and their Dianions

   https://doi.org/10.1002/anie.202307750  

   Gu, Yanwei; Torchon, Herdya S.; Zhu, Yikun; Wei, Zheng; Schollmeyer, Dieter; Wagner, Manfred; Ni, Yong; Wu, Zehua; Wu, Hao; Zhou, Yazhou; et al (July 2023, Angewandte Chemie International Edition)

   Abstract We report a facile synthesis of diindeno‐fused dibenzo[a,h]anthracene derivatives (DIDBA‐2Cl,DIDBA‐2Ph, andDIDBA‐2H)with different degrees of non‐planarity using three substituents (chloro, phenyl, and hydrogen) of various sizes. The planarization of their cores, as evidenced by the decreased end‐to‐end torsional angles, was confirmed by X‐ray crystallography. Their enhanced energy gaps with twisting were investigated by a combination of spectroscopic and electrochemical methods with density functional theory, which showed a transition from singlet open‐shell to closed‐shell configuration. Moreover, their doubly reduced states,DIDBA‐2Ph²⁻andDIDBA‐2H²⁻, were achieved by chemical reduction. The structures of dianions were identified by X‐ray crystallographic analysis, which elucidated that the electron charging further distorted the backbones. The electronic structure of the dianions was demonstrated by experimental and theoretical approaches, suggesting decreased energy gaps with larger non‐planarity, different from the neutral species. 

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