The University of Damascus is the largest and oldest university in Syria, located in the capital Damascus and has campuses in other Syrian cities. It was founded in 1923 through the merger of the School of Medicine and the Institute of Law . Until 1958 it was named the Syrian University, but the name changed after the founding of the University of Aleppo. Currently, there are 9 public universities and more than 10 private ones in Syria.The University of Damascus consists of several faculties, Higher Institutes, intermediate institutes and a School of Nursing. There is an institution specialized in teaching the Arabic language to foreigners, which is the largest institution of its kind in the Arab world. Wikipedia.
Amer Zamrik M.,Damascus University
International Journal of Pharmaceutical Sciences Review and Research | Year: 2013
In this study, quantification of both nitrate and nitrite in 121 sample included 72 of tomato samples collected randomly from the wholesale market for fruits and vegetables in addition to the 49 samples of processed tomato products included tomato juice, tomato paste, pizza sauce and ketchup. Nitrate and nitrite were estimated spectrophotometrically, nitrate was determined after reduction to nitrite with cadmium column. Results showed that the average amount of nitrate in tomato was 1089 mg/kg, while it was 500 mg/kg in the tomato juice. As for the amount of nitrates in tomato paste was 2043 mg/kg. The study also showed that the content of nitrate in pizza sauce and ketchup, in which the tomato represent the essential ingredient were 3039 and 5397 respectively. The nitrite levels in tomato and derived products are very low, under 1mg/kg excluding two results for tomato. This study showed that the amount of nitrates and nitrites in the tomatoes were within internationally accepted limits, and this will be reflected on their presence in the tomato processed products.
Al Aji B.,Damascus University |
Yavuz Y.,Anadolu University |
Koparal A.S.,Anadolu University
Separation and Purification Technology | Year: 2012
In this work, the performance of batch electrocoagulation (EC) using iron electrodes with monopolar configuration for simultaneous removal of copper (Cu), nickel (Ni), zinc (Zn) and manganese (Mn) from a model wastewater was investigated. The influences of current density (from 2 to 25 mA/cm 2), initial metal concentration (from 50 to 250 mg/L) and initial pH (3, 5.68, 8.95) on removal efficiency were explored in a batch stirred cell to determine the best experimental conditions. The results indicated that EC was very efficient to remove heavy metals from the model wastewater having an initial concentration of 250 mg/L for each metal under the best experimental conditions. According to initial pH results, high pH values are more suitable for metal removal with EC treatment. At the current density of 25 mA/cm 2 with a total energy consumption of ∼49 kWh/m 3, more than 96% removal value was achieved for all studied metals except Mn which was 72.6%. © 2011 Elsevier B.V. All rights reserved.
Zaid K.W.,Damascus University
Asian Pacific Journal of Cancer Prevention | Year: 2014
The aim of this study was to establish the expression and localization of E-cadherin and β-catenin in oral squamous cell carcinomas (OSCC) so that we could correlate the findings with prognostic-relevant histopathological variables. E-cadherin and β-catenin expression in normal oral epithelia and in oral squamous cell carcinomas was examined immunohistochemically, and associations with histopathological differentiation and prognosis were then analyzed in 33 patients who had been operated on for OSCC. E-cadherin expression was found in (82%) of the squamous cells of well differentiated OSCC, (61%) of moderately differentiated and (39%) of poorly differentiated. E-cadherin expression was significantly associated with histological grade (p=0.000). No nuclear staining was detected. In (19.5%) of the cells E-cadherin localized in the cytoplasm, with no correlation to the histological grade (p=0.106). β-Catenin expression was found in 87% of the squamous cells of well differentiated OSCC, 67% of moderately differentiated and 43% of poorly differentiated, the expression was significantly associated with histological grade (p=0.000). the nuclear β-Catenin expression appeared in 3.3% of the cells and it was correlated to the histological grade (p=0.000). In (23.5%) of the cells β-Catenin localized in the cytoplasm, with correlation to the histological grade (p=0.002). According to this study the expression of β-catenin and E-cadherin were independent prognostic factors for histological grade. E-cadherin was closely linked to β-catenin expression in OSCC (p=0.000) and to tumor differentiation. That reflects a structural association and the role of both in tumor progression.
Barakat C.,Damascus University
Asian Pacific Journal of Cancer Prevention | Year: 2015
This study aimed to investigate the correlation between β-catenin immunoexpression and histopathological grades of lower lip squamous cell carcinoma (LSCC). β-Catenin abnormal expression was found in 29% of the squamous cells of well differentiated LSCC, 63% of moderately differentiated and 86% of poorly differentiated, and therefor was significantly associated with histological grade (p=0.000). Nuclear β-catenin expression appeared in 5% of the cells and was also correlated with the histological grades (p=0.000). In 14.7% of the cells it was localized in the cytoplasm, again correlating with histology (p=0.002). According to this study the expression of β-catenin is an independent prognostic factor for histological grade and to the tumor differentiation. This appears to reflect a structural association and the role of β-catenin in tumor progression.
Kouchaji C.,Damascus University
Egyptian Journal of Anaesthesia | Year: 2015
Few studies have looked at the incidence of complications performed with IV sedation for dental treatment. The purposes of this study were to (1) delineate the nature and frequency of postdental treatment complications associated with dental treatment under IV sedation in individuals with intellectual disability, and (2) correlate morbidity reports with patient's gender, age, and duration of dental procedures. Materials and methods 28 Patients with intellectual disability, 13 females and 15 males, aged 3-36 years. IV Propofol was given 1 mg/kg IV Propofol bolus Incremental top ups of 0.25 mg/kg Propofol as required. If the patients were dental treated, then postcomplications while recovering in hospital were evaluated. Statistical comparisons of patient complications, gender, age, and duration of dental treatment were made. Results There were no reported serious adverse effects. Minor posttreatment complications occurred in 7 (25%), agitation in 28.6%, sleepiness in 28.6%, drowsiness in 14.3%, and pain in 14.3%, followed by dental bleeding in 14.3%. Gender of the patients was found to be significantly related to post-operative complications, while age and duration of dental treatment showed no significant relationship. Conclusion IV sedation with Propofol for patients with intellectual disability for dental treatment appears to be with minor complications. © 2014 Production and hosting by Elsevier B.V. on behalf of Egyptian Society of Anesthesiologists.