Editor’s note August, 2013

Editors note

EDITOR’S NOTE Geopersia is published biannually by the College of Science, University of Tehran, Iran. The College of Science published “Journal of Science”, which covered all fields of basic science, from 1968 to 2010. It was then decided that the College’s journals should be more specialized, and hence publication of Geopersia was launched. Geopersia aims to publish peer-reviewed original...

editors note

editor’s note geopersia is published biannually by the college of science, university of tehran, iran. the college of science published “journal of science”, which covered all fields of basic science, from 1968 to 2010. it was then decided that the college’s journals should be more specialized, and hence publication of geopersia was launched. geopersia aims to publish peer-reviewed original res...

Cover vol. 10, no. 4, August 2013

19 August 2013.dvi

The amalgamation property (AP) is of particular interest in the study of residuated lattices due to its relationship with various syntactic interpolation properties of substructural logics. There are no examples to date of non-commutative varieties of residuated lattices that satisfy the AP. The variety SemRL of semilinear residuated lattices is a natural candidate for enjoying this property, s...

Guest Editors' Note

The Spring 2013 issue of Global Media Journal American edition focuses on the rapid changes occurring in the "Arab World." In the midst of rapid social and governmental change, as well as the rise and fall of political regimes, personal and social media seem to stay at the forefront. During the initial period of revolution in Egypt, the Mubarak government tried to "turn the internet off." Rathe...