oxidation state in GSAS?

[Marcelo J.G. Silva]

Greetings all, I have to questions (to make it simple); any help is welcome, please.   I am trying to perform some refinement with Rietveld using GSAS and I am not sure if by loading the CIF or the CEL files already takes that into account. Can anyone help me, please? I try to enter manually the values in EXPGUI but really am not sure which way is the correct. Thank you.   I am also having a hard time fitting synchrotron data from a film (highly textured) and sometimes I wonder if it is possible. If someone can give a hint, I would really appreciate it,  even if the hint is: not possible!!!      Marcelo   ========================================== Marcelo J. Gomes da Silva - [EMAIL PROTECTED] PhD Candidate Department of Mechanical and Nuclear Engineering 127 Reber Building, University Park, PA 16802 U.S.A. The Pennsylvania State University http://www.personal.psu.edu/mjg301/ ==========================================