On factorizing FF-matrices in Y(sln)Y(sl_n) and Uq(sln^)U_q(\hat{sl_n}) spin chains

We consider quantum spin chains arising from $N$-fold tensor products of the fundamental evaluation representations of $Y(sl_n)$ and $U_q(\hat{sl_n})$. Using the partial $F$-matrix formalism from the seminal work of Maillet and Sanchez de Santos, we derive a completely factorized expression for the $F$-matrix of such models and prove its equivalence to the expression obtained by Albert, Boos, Flume and Ruhlig. A new relation between the $F$-matrices and the Bethe eigenvectors of these spin chains is given.Comment: 30 page

Differences in both matrix metalloproteinase 9 concentration and zymographic profile between plasma and serum with clot activators are due to the presence of amorphous silica or silicate salts in blood collection devices.

none4sìopenMANNELLO F; TANUS-SANTOS JE; MESCHIARI CA; TONTI G.A.Mannello, Ferdinando; TANUS SANTOS, Je; Meschiari, Ca; Tonti, G. A

Reaction of 1,2-Diaza-1,3-butadienes with thiol derivates: a versatile construction of nitrogen/sulfur containing heterocycles

none9sìopenATTANASI O.A.; FILIPPONE P; LILLINI S; NICOLINI S; MANTELLINI F; APARICIO D; IGNACIO R; DE LOS SANTOS J.M; PALACIOS FAttanasi, ORAZIO ANTONIO; Filippone, Paolino; Lillini, S; Nicolini, Simona; Mantellini, Fabio; Aparicio, D; Ignacio, R; DE LOS SANTOS J., M; Palacios, F

A meson-exchange piN model up to energies sqrt(s) < 2.0 GeV

A meson-exchange piN model, previously constructed using three-dimensional reduction scheme of the Bethe-Salpeter equation for a model Lagrangian involving \pi, \eta, N, \Delta, rho, and \sigma fields, is extended to energies up to 2 GeV by including the \eta N channel and all the four stars \pi N resonances up to the F-waves. The effects of other 2 pion channels are taken into account phenomenologically. The extended model gives an excellent fit to both piN phase shifts and inelasticity parameters in all channels up to the F-waves. However, a few of the extracted resonance parameters differ considerably from the PDG values.Comment: 5 pages, 1 figire, 1 table. Talk presented at the 18th International Conference on "Few-Body Problems in Physics", Aug. 21-26, 2006, Santos, Brazi

The Development, Implementation And Enduring Impact Of John Dewey's Philosophy Of History

John Dewey was an American philosopher, psychologist, and leading figure in the progressive education movement that took place in the late nineteenth and early twentieth centuries. While many are familiar with Dewey’s educational philosophy and its aim to promote and improve America’s democratic experience, few are familiar with the integral role that Dewey’s philosophy of history played in his perceived need for a reconstruction in and of philosophy, in the development of his philosophy of education, and in the implementation of his philosophy of education at the Laboratory School. The focus of this thesis centers on this gap in our understanding of Dewey’s philosophy of history and its implementation at the Laboratory School. Through a four-fold inquiry, I argue that at the heart of Dewey’s approach to philosophy and education lay an intelligent understanding of past human growth, progress, and intellectual development with an overarching emphasis on knowledge as an experimental, experiential, and reconstructive process rather than as a product. This paper examines Dewey’s unique history of philosophy, the development of his philosophy of history, the application of his ideas at the Laboratory School, and the trajectory of his philosophies of history and education over the last one hundred years