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Volume 11, Issue 2 (3-2020)
Abstract
Cultural revolution in Iran has been usually represented as an inescapable consequence of 1979 revolution, which imposed by government’s will to suppress the opponents and stabilize new order. Such descriptions lack the conditions and disputes out of which the event emerged. In this article, we contend that making sense of cultural revolution requires a more effective illustration through understanding the historical conditions, its relation with society and a thick description of the events. Moreover, based on conjunctural analysis, we argue that the whole procedure of the event can be analyzed in three episodes: the emergence, institutionalization, and re-opening of the universities. It seems that a series of events had an active hand in the processes including the rise of Islamists, the state’s weakness, the hostage crisis, the border unrests, the widespread clearings, the election of the first parliament, and the bombing of the offices of Islamic Republic Party and the prime minister. Furthermore, several critical issues initiate the event, including its scope and extension, the feature of post- revolutionary university, and the responsive authorities. In addition, the problem of academic order contributed in the period of institutionalization and establishing the Bureau of the Cultural Revolution. The last but not the least problem formed around reopening of humanities in universities. We argued the articulation of events and problems led to problematization of cultural revolution. Also this articulation illustrates the beginnings of ideological cultural politics in post-revolutionary Iran.
Volume 15, Issue 2 (6-2012)
Abstract
Objective: One of the major issues in bone tissue engineering is the design and fabrication of bioactive, bioresorbable porous 3D scaffolds capable of maintaining their structure and integrity over a predictable period of time. One such approach is the fabrication of composite scaffolds. Methods: In this study we present fabrication and characterization of novel silk/bioglass-composite scaffolds. Regenerated fibroin was constructed from mulberry silk cocoons and calcium silicophosphate bioactive glass was made by sol-gel processing. For fabrication of a homogenous composite, grained bioglass particles were modified with 3-aminopropyltriethoxysilane coating. Fibroin/bioglass composite scaffolds were fabricated by the freeze-dry technique at different concentrations. Results: Silk protein extract was evaluated by FTIR and XRD methods. FTIR spectrum showed sharp amide peaks at 1655 cm-1 and 1530 cm-1 wave lengths, which confirmed the existence of fibroin. XPS analysis demonstrated that the amino groups were established on the surface of the glass powder. The fabricated 3D scaffolds were morphologically analyzed by scanning electron microscopy, which showed uniformly dispersed bioglass particles in all structures. Scaffolds were seeded with human mesenchymal stem cells for 21 days. Conclusion: Considering the cytocompatibility of the scaffolds and osteogenic differentiation during three weeks, it could be concluded that the appropriate combination of structural and biological properties make the silk/bioglass composite scaffold a probable choice for potential use in bone tissue engineering.
