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   https://doi.org/10.1111/oik.06529  

   O'Keefe, Kimberly ; Nippert, Jesse B. ; McCulloh, Katherine A. ( August 2019 , Oikos)
2. Why do A·T and G·C self-sort? Hückel aromaticity as a driving force for electronic complementarity in base pairing

   https://doi.org/10.1039/C8OB01669K  

   Zhang, Yu ; Wu, Chia-Hua ; Wu, Judy I-Chia ( January 2018 , Organic & Biomolecular Chemistry)

   Density functional theory computations and block-localized wavefunction analyses for 57 hydrogen-bonded base pairs document excellent linear correlation between the gas-phase association energies and the degree of aromaticity gain of paired bases ( r = 0.949), challenging prevailing views of factors that underlie the proposed electronic complementarity of A·T(U) and G·C base pairs. Base pairing interactions can polarize the π-electrons of interacting bases to increase (or decrease) cyclic 4 n + 2π electron delocalization, resulting in aromaticity gain (or loss) in the paired bases, and become strengthened (or weakened). The potential implications of this reciprocal relationship for improving nucleic acid force-fields and for designing robust unnatural base pairs are discussed. 

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4. Slip Complementarity and Triggering between the Foreshock, Mainshock, and Afterslip of the 2019 Ridgecrest Rupture Sequence

   https://doi.org/10.1785/0120200037  

   Qiu, Qiang ; Barbot, Sylvain ; Wang, Teng ; Wei, Shengji ( June 2020 , Bulletin of the Seismological Society of America)

   null (Ed.)

   ABSTRACT We investigate the deformation processes during the 2019 Ridgecrest earthquake sequence by combining Global Navigation Satellite Systems, strong-motion, and Interferometric Synthetic Aperture Radar datasets in a joint inversion. The spatial complementarity of slip between the Mw 6.4 foreshock, Mw 7.1 mainshock, and afterslip suggests the importance of static stress transfer as a triggering mechanism during the rupture sequence. The coseismic slip of the foreshock concentrates mainly on the east-northeast–west-southwest fault above the hypocenter at depths of 2–8 km. The slip distribution of the mainshock straddles the region above the hypocenter with two isolated patches located to the north-northwest and south-southeast, respectively. The geodetically determined moment magnitudes of the foreshock and mainshock are equivalent to moment magnitudes Mw 6.4 and 7.0, assuming a rigidity of 30 GPa. We find a significant shallow slip deficit (>60%) in the Ridgecrest ruptures, likely resulting from the immature fault system in which the sequence occurred. Rapid afterslip concentrates at depths of 2–6 km, surrounding the rupture areas of the foreshock and mainshock. The ruptures also accelerated viscoelastic flow at lower-crustal depths. The Garlock fault was loaded at several locations, begging the question of possible delayed triggering. 

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5. Control Synthesis for Stability and Safety by Differential Complementarity Problem

   https://doi.org/10.1109/LCSYS.2022.3228726  

   Yi, Yinzhuang ; Koga, Shumon ; Gavrea, Bogdan ; Atanasov, Nikolay ( January 2023 , IEEE Control Systems Letters)