introduction: it was to compare the efficacy of semiannually fluoride varnish application versus pit and fissure sealant to reduce occlusal caries incidence. materials and methods: a randomized parallel designed study was conducted with 352 child-ren aged 6-7 years. participants were allocated into biannual application of varnish (n=179) (naf 5 %( durafluor, dentsply®, latin america) or resin-b...

This study provides a detailed analysis of the existing problems with nuclear safeguards and material accounting in Russia by comparing the existing situation both to U.S. methods and to the system of controls that existed in the Soviet era. It also examines recent U.S. efforts under the Nunn-Lugar initiative to improve safeguards and the system of material accounting and control. Finally, it c...

Adam N. Stulberg is Assistant Professor at the Sam Nunn School of International Affairs at the Georgia Institute of Technology. Previously, he was as a consultant at RAND and Senior Research Associate at the Center for Nonproliferation Studies(CNS). He has written several articles and monographs on the strategic implications of Russian regionalism, as well as on energy security issues in the fo...