Biodesulfurization enhancement via targeted re-insertion of the flavin reductase dszD in the genome of the model strain
Baseline right ventricular-pulmonary artery coupling and outcomes after transcatheter aortic valve replacement: A systematic review and meta-analysis
Influenza A Virus Complicated by Myopericarditis with Pericardial Effusion
Urolithin A Provides Cardioprotection and Mitochondrial Quality Enhancement in Rodents and Improves Human Cardiovascular Biomarkers
Highly immunogenic DNA/LION nanocarrier vaccine potently activates lymph nodes inducing long-lasting immunity in macaques
Day-to-day dynamics of facial emotion expressions in posttraumatic stress disorder
Local boy does good: The effect of CSR activities on firm value
Income inequality and access to advanced immunotherapy for lung cancer: the case of Durvalumab in the Netherlands
Shifts on trees versus classical shifts in chain recurrence
We construct continuous (and even invertible) linear operators acting onBanach (even Hilbert) spaces whose restrictions to their respective closedlinear subspaces of chain recurrent vectors are not chain recurrent operators.This construction completely solves in the negative a problem posed by NilsonC. Bernardes Jr. and Alfred Peris on chain recurrence in Linear Dynamics. Inparticular: we show that the non-invertible case can be directly solved viarelatively simple weighted backward shifts acting on certain unrooted directedtrees; then we modify the non-invertible counterexample to address theinvertible case, but falling outside the class of weighted shift operators; andwe finally show that this behaviour cannot be achieved via classical(unilateral neither bilateral) weighted backward sifts (acting on $\mathbb{N}$and $\mathbb{Z}$ respectively) by noticing that a classical shift is a chainrecurrent operator whenever it admits a non-zero chain recurrent vector.