Charmonium and Bottomonium from Classical SU(3) Gauge Configurations

The charmonium and bottomonium spectra computed from a potential defined from a single gauge configuration, obtained from solving the classical field equations, is discussed. The theoretical spectra shows good agreement with the measured states. A discussion of possible interpretations, within the same non-relativistic potential model, for the new charmonia states X(3872), $\chi_{c1} (2P)$ and Y(4260) is performed. In particular, we give predictions for electromagnetic E1 transitions for various scenarios.Comment: Talk given at "Quark Confinement and the Hadron Spectrum VII", Ponta Delgada, Sao Miguel, Azores, Portugal, Sept. 2-7, 200

Higher curvature Bianchi identities, generalized geometry, and L∞ algebras

The Bianchi identities for bosonic fluxes in supergravity can receive higher derivative quantum and string corrections, the most well known being that of Heterotic theory $d H = \tfrac{1}{4}\alpha'(\text{tr } F^2 - \text{tr } R^2)$. Less studied are the modifications at order $R^4$ that may arise, for example, in the Bianchi identity for the seven-form flux of M theory compactifications. We argue that such corrections appear to be incompatible with the exceptional generalised geometry description of the lower order supergravity, and seem to imply a gauge algebra for the bosonic potentials that cannot be written in terms of an (exceptional) Courant bracket. However, we show that this algebra retains the form of an $L_{\infty}$ gauge field theory, which terminates at a level ten multibracket

Estudos de ecologia humana entre os Suruí do parque indígena Aripuanã, Rondônia : 1. o uso de larvas de coleópteros (Bruchidae e Curculionidae) na alimentação

Este trabalho é parte de um projeto de pesquisa em Ecologia Humana e Antropologia Médica que, desde 1979, vem sendo desenvolvido entre os Suruí de Rondônia, e discorre neste artigo sobre o uso de larvas de Coleópteros (Bruchidae e Curculionidae) na alimentação. Esse grupo habita a reserva do Posto Indígena 7 de Setembro, na área administrativa do Parque Aripuanã, e mantém contato permanente com a sociedade nacional desde o ano de 1969