Browsing by Author "Soliman A.H."

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Enhancing efficiency of enterprise digital rights management
(Institute of Electrical and Electronics Engineers Inc., 2016) Soliman A.H.; Ibrahim M.H.; El-Ramly S.H.; ECE Dept.; Faculty of Engineering; MSA University; 6 of October; Egypt; Electronics; Communications and Computers Dept.; Faculty of Engineering; Helwan University; Helwan; Egypt; ECE Dept.; Faculty of Engineering; Ain Shams University; Cairo; Egypt
Most of private enterprises and governmental institutions are in an increasing need for enterprise-oriented digital rights management (E-DRM) schemes. E-DRM schemes provide protection to digital contents that contain corporates' sensitive information and prevent unauthorized access to these data. Previous work proposed a storage reliable and efficient E-DRM systems based on the information dispersal algorithm. In this paper, we propose a computationally enhanced information dispersal and reconstruction algorithms. We achieve significant reduction in the computational complexity without affecting the E-DRM system security and with comparable storage requirements. � 2015 IEEE.
Evaluation of osteopontin as a biomarker in Hepatocellular carcinomas in Egyptian patients with chronic HCV cirrhosis
(Asian Pacific Organization for Cancer Prevention, 2018) Abdel-Hafiz S.M.; Hamdy H.E.; Khorshed F.M.; Aboushousha T.S.; Safwat G.; Saber M.A.; Seleem M.; Soliman A.H.; Theodore Bilharz Research Institute (TBRI); Egypt; Faculty of Biotechnology; October University of Modern Sciences and Arts; Egypt; Theodore Bilharz Research Institute El-Warrak; Embaba Giza; Egypt; National Hepatology and Tropical Medicine Institute (NHTMRI); Egypt; National Cancer Institute; Cairo University; Cairo; Egypt
Background: Hepatocellular carcinoma (HCC) is a high incidence disease in Egypt with a poor prognosis and survival. Biomarkers are important for diagnosis of HCC at an early stage. Osteopontin (OPN), a glycoprotein secreted by macrophages, osteoblasts, and T cells, is also highly expressed in a variety of tumors, such as examples in the breast, colon, and stomach. The present study aimed to correlate the serum level of OPN in HCV-positive hepatocellular carcinoma patients, with OPN expression in tumor and non-tumor liver tissues in order to identify its efficacy as a biomarker for diagnosis. Material and Methods: Out of total of 146 patients, 80 were selected for inclusion in the study. Blood samples as well as specimens of tumor and non-tumor liver tissue were collected. In addition, blood samples from 20 healthy volunteers were obtained as controls. Serum OPN and alpha-fetoprotein (AFP) were evaluated by ELISA for HCC and control groups. OPN and AFP gene expression were examined by real-time PCR, after homogenization and DNA extraction from serum samples and liver tissues. Results: It was found that serum OPN levels were significantly higher in the HCC group compared to normal group (P=0.009), with a strong positive correlation with AFP expression. However, there was no significant difference between OPN expression in tumor and non-tumor liver tissue. Conclusion: Serum OPN is highly suggested to be a professional candidate for HCC early diagnosis, with a diagnostic ability and accuracy equal or higher than for AFP. � 2017, Asian Pacific Organization for Cancer Prevention.
Improving security and efficiency of enterprise digital rights management
(Institute of Electrical and Electronics Engineers Inc., 2016) Soliman A.H.; Ibrahim M.H.; El-Hennawy A.E.; ECE Department; Faculty of Engineering; MSA University; Egypt; Department of Electronics; Communications and Computers; Faculty of Engineering; Helwan University; Egypt; ECE Department; Faculty of Engineering; Ain Shams University; Egypt
Recently, private enterprises, governmental and military institutions have been relied mainly on digitizing their work. Digital files containing sensitive information should be protected against external and internal malicious attacks. Enterprise digital rights management (E-DRM) schemes provides several approaches to protect and securely distribute digital contents while empowering the enterprise's administration to monitor and control access to these contents. In this paper we propose a new secure and efficient E-DRM system based on the Information Dispersal Algorithm (IDA). We achieved an improvement in the overall storage requirements, and the computations complexity at each server in the system, as well as preserving the security of information and system robustness. � 2015 IEEE.