Theoretical predictions for B decay rates are rewritten in terms of the Υ(1S) meson mass instead of the b quark mass, using a modified perturbation expansion. The theoretical consistency of this expansion is shown both at low and high orders. Our method improves the behavior of the perturbation series for semileptonic and nonleptonic inclusive decay modes, as well as for exclusive decay form fa...

This paper introduces axioms for an abstract trace on a monoidal category. This trace can be interpreted in various contexts where it could alternatively be called contraction, feedback, Markov trace or braid closure. Each full submonoidal category of a tortile (or ribbon) monoidal category admits a canonical trace. We prove the structure theorem that every traced monoidal category arises in th...

YES Dr St Godard argues1 that physician-assisted suicide and voluntary euthanasia (PASVE; I will avoid any suggestion of a euphemism) are not in anyone’s interest. Ultimately, his arguments rest on a subjective definition of compassion, and a personal view about the role of medicine and suffering. I respect his arguments, but I do not feel that any of them justify a societal ban on PASVE. Compa...

A timing recovery algorithm is introduced that operates with less than two samples per symbol and provides an enormous complexity reduction. The complexity reduction is due to a synergy with the already existing Fourier transforms in a coherent receiver, an avoidance of terms that are dominated by noise, and a complete elimination of multiplications. A simulation and an experiment with a single...

O presente artigo trata sobre a educação no Brasil na construção do currículo em meio aos dilemas e resistências, forma como esta foi se manifestando desde os primeiros povos que aqui estavam, índios, até o atual documento rege brasileiro, Base Nacional Comum Curricular BNCC. objetivo é compreender história da através das manifestações curriculares contexto para paz escola Centro de Educação Jo...