RESUMO
New zirconia-germano-alumino silicate, nano-particles based, Ytterbium doped fibers are obtained through the conventional modified chemical vapour deposition and solution doping techniques. The start fiber preforms are characterized by means of electron micro probe, energy dispersive x-ray, and electron diffraction analyses, revealing the presence of phase-separated nano-sized Ytterbium-rich areas in the core, while the final fibers are inspected in the sense of spectroscopy and laser properties.
RESUMO
The use of single-cell polymerize chain reaction analysis has allowed for a better understanding of the origin of Hodgkin's disease, Burkitt. The study of the mechanisms regulating apoptosis and the survival of neoplastic clones have opened a whole area of research. The Revised European-American List of lymphoid neoplasms must be presented in a form that facilitates the understanding, learning, and teaching of these disorders. There is a great need for a better definition of the new category of lymphoplasmacytic lymphoma, the variants of mantle cell lymphoma and marginal zone B-cell lymphomas, and the coming of age of the NK-cell lymphomas. Based on current data, it is difficult to determine the site of transplantation in the management of follicular, low-grade non-Hodgkin's lymphoma. These patients remain at risk of relapse after transplantation, mirroring results with conventional therapy. The treatment of aggressive lymphomas remains an area of significant controversy. The Intergroup Study concluded that none of the more recent regimens was superior to CHOP. Recent data suggest that high-dose therapy with consolidative autologous or allogenic transplant may benefit patients with aggressive histology lymphoma who have poor prognostic features.
