recently we faced with a scientific journal, named ``journal of environmental & technology''. although the most content of this journal had scientific and technical aspect relating to environment, the subject of the last article in this issue (no. 26, 1384) was on international environmental law. off course the tittle of the article which was ``progressive development of international...

This is a brief review where some basic elements of non-commutative geometry are given. The rules and ingredients that enter in the construction of the standard model and grand unification models in non-commutative geometry are summarized. A connection between some space-time supersymmetric theories and non-commutative geometry is made. The advantages and prolems of this direction are discussed.

Some other possible conclusions come easily to mind. Perhaps, if we’re really concerned about students’ learning evidence-based medicine, then we should teach it more or better. On the other hand I am one of many who have joined the anti-EBM movement (Norman 1999). In my view, the fundamental irony remains that, even though it made the BMJ’s ‘‘Top 15 Medical Innovations of all Time’’ list in 20...