A. Hakimzadeh

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In knowledge-based economy, intellectual capital is used in order to create and increase enterprise value and the success of an organization depends on its ability to manage this scarce resource. In addition, one of the important features of an organization that can assist in the creation and sharing of knowledge and compared to other organizations creates(More)
Extramedullary plasmacytoma is a rare neoplasm characterized by monoclonal proliferation of plasma cells. Most lesions occur in the head and neck, primarily in the upper aerodigestive tract. The nasal cavity and nasal septum are the most common sites of occurrence. In this report, three patients admitted in our clinic with history of nasal obstruction(More)
Cancer reflects a complicated network of interactions between genes and environmental factors. Cytochrome P450 (CYP) is a multi-gene superfamily participating in the metabolism of xenobiotics. The aim of our study was to examine whether polymorphisms in the CYP enzyme genes affect the risk of developing larynx squamous cell carcinoma (SCC). Polymorphism of(More)
In this paper, a novel operator method is proposed for solving fuzzy linear differential equations under the assumption of strongly generalized differentiability. To this end, the equivalent integral form of the original problem is obtained then by using its lower and upper functions the solutions in the parametric forms are determined. The proposed method(More)
BACKGROUND Epstein Barr Virus (EBV) is one of the most common viral infections in human population. EBV has a significant role in pathogenesis of Hodgkin's lymphoma, Burkitt's lymphoma and nasopharyngeal carcinoma. The role of EBV in non-Hodgkin's lymphoma, diffuse large B cell (NHL - DLBL) in the head and neck is controversial. OBJECTIVES The purpose of(More)
Cell cultures were derived from tendons or ligamentous material from patients with carpal tunnel syndrome (CTS), Dupuytren's contracture (DP), tendopathia nodosa (TN) and hallux valgus (HV). The ultrastructure of the operation specimens as well as of the cell monolayers was investigated, using a floating sheet method in order to preserve both cell-to-cell(More)
BACKGROUND Primary Small round blue cell tumors (SRBCT) in sinonasal comprise histogenetically diverse entities with overlapping morphologic features. Because of the limited initial biopsy tissue materials, differential diagnostic difficulties may arise, and as they have different management, exact diagnosis and classification are very important. (More)
OBJECTIVE To study fine needle aspiration cytology (FNAC) findings of tonsillar lesions with histological controls and to assess its role in the diagnostic evaluation of tonsillectomy specimens. METHODS This study consisted of 112 cases that required tonsillectomy, comprising 55 (49.1%) men and 57 (50.9%) women. The ages ranged between 20 and 62 years.(More)