eman raslan

Background Hepatitis B virus (HBV) infection is a major worldwide healthcare problem with subsequent serious complications including cirrhosis and hepatocellular carcinoma (HCC). Hence, taking cognizance of HBV impact is critical for future planning of its control and prevention. Objectives To assess the prevalence of HBV in Egypt, analyse the demographic characteristics of HBV-infected patients and examine the common routes of its transmission. Methods This is a cross-sectional study of data from the Egyptian Health Issues Survey (EHIS), which employed a nationally representative sample of 16,004 individuals. The survey participants were categorized into two groups: group A, HBV positive, and group B, HBV negative. Comparative analysis was performed to identify demographic features and define possible risk factors. Results The total number of participants included in the study was 16,004. The mean age (± SD) was 33.5 (± 12.4) years. The prevalence of HBV was 1.52%. Demographic anal...

Fiber-Wireless (FiWi) networks are a promising candidate for future broadband access networks. These networks combine the optical network as the back end where different passive optical network (PON) technologies are realized and the wireless network as the front end where different wireless technologies are adopted, e.g. LTE, WiMAX, Wi-Fi, and Wireless Mesh Networks (WMNs). The convergence of both optical and wireless technologies requires designing architectures with robust efficient and effective bandwidth allocation schemes. Different bandwidth allocation algorithms have been proposed in FiWi networks aiming to enhance the different segments of FiWi networks including wireless and optical subnetworks. In this survey, we focus on the differentiating between the different bandwidth allocation algorithms according to their enhancement segment of FiWi networks. We classify these techniques into wireless, optical and Hybrid bandwidth allocation techniques.