In this article, based on mutual appropriation of concepts from cultural-historical activity theory (especially Andy Blunden’s works) and Iranian Marxist tradition Kamal Khosravi’s ideas), I have elaborated two crises which, we believe, are main characteristics our historical stage other manifestations them: (a) crisis perspective human self-emancipation (b) in emancipatory social science. Cris...

Date approved by Chairman ii iii Acknowledgement First, I would like to thank my family for their love, support, and encouragements. Their continuous care has been indispensable throughout my Ph.D research. I am most grateful to my advisor, Dr. Monson Hayes III, for his guidance, interesting discussions, and helpful suggestions. I owe a great deal of my research skills to him. I would like to t...

Type-2 fuzzy logic systems have extensively been applied to various engineering problems, e.g. identification, prediction, control, pattern recognition, etc. in the past two decades, and the results were promising especially in the presence of significant uncertainties in the system. In the design of type-2 fuzzy logic systems, the early applications were realized in a way that both the anteced...

The stabbing number of a partition of a rectilinear polygon P into rectangles is the maximum number of rectangles stabbed by any axis-parallel line segment contained in P . We consider the problem of finding a rectangular partition with minimum stabbing number for a given rectilinear polygon P . First, we impose a conforming constraint on partitions: every vertex of every rectangle in the parti...

The prenylation of proteins utilizes the polyisoprenyl pyrophosphates (FPP) and geranylgeranyl pyrophosphate (GGPP) as prenyl donors. These polyisoprenoids are also precursors to ubiquinone and dolichol synthesis. We have previously described the geranylgeranylation of rab 1b from labeled mevalonate in rabbit reticulocyte lysates (Khosravi-Far, R., Lutz, R. J., Cox, A. D., Conroy, L., Bourne, J...

Receding Horizon based Cooperative Vehicle Control with Optimal Task Allocation Mohammad Khosravi The problem of cooperative multi-target interception in an uncertain environment is investigated in this thesis. The targets arrive in the mission space sequentially at a priori unknown time instants and a priori unknown locations, and then move on a priori unknown trajectories. A group of vehicles...

[PDF] [Full Text] [Abstract] , March , 2011; 105 (3): 1276-1294. J Neurophysiol Tara Deemyad, Leonard Maler and Maurice J. Chacron by bursts and isolated spikes Inhibition of SK and M channel-mediated currents by 5-HT enables parallel processing [PDF] [Full Text] [Abstract] , April , 2011; 105 (4): 1908-1917. J Neurophysiol Jonathan Y. Shih, Craig A. Atencio and Christoph E. Schreiner corte...

During the past twenty years, the trend of dairy food manufacturers has been to incorporate probiotic bacteria into some fermented and non fermented dairy products. This is primarily due to potential health benefits attributed to their consumption [1]. Lactobacillus acidophilus is involved in the production of many fermented milk products with claimed probiotic value such as reduction of lactos...