Asmaa Mohamed Ibrahim

Ophthalmology department menoufia university

Filter bank multi-carrier (FBMC) is considered a promising alternative to the Orthogonal Frequency Division Multiplexing (OFDM) scheme. It improves spectral efficiency by eliminating the need for cyclic prefix while attenuating interference due to the robustness of the out-of-band emission. In this work, we present a framework, and the performance...

In this paper, a resource partitioning scheme combined with a new multi-carrier optical modulation technique for indoor visible light communication (VLC) system is proposed. In VLC systems, the coverage area is divided into multiple atto-cells. In each atto-cell, multiple LED arrays are used as access points (APs) serving the assigned users. The co...

The evident conflict in upgrading policies between several entities necessitates the crucial need to develop a reliable urban appraisal method to ensure successful interventions. The Egyptian initiative, aims at categorizing them into ‘unsafe’ versus ‘unplanned’ areas. Yet, it has ignored some basic socio-spatial and psychological quality of life i...

The public transit financing methods in Egypt are mostly dependent on governmental entities, which increase national economic burdens, without any correspondent impact on the quality of service provided nor their provision. An alternative way of financing must be integrated without an increase in fares, and general budget, or dependence on foreign...

Purpose: To evaluate the levels of ischemia-modified albumin (IMA) in relation to oxidant-antioxidant profiles in the serum, aqueous, and lens in cataract patients. Setting: Department of Ophthalmology, Menoufia University, Shebin El Kom, Menoufia, Egypt. Design: Prospective case series. Methods: Patients were divided into 2 groups. The cata...

Integrated statistical-theoretical based approaches in decision support promise to support effective investment decision making. From this view, this paper proposes an innovative methodology to digitally indicate the true developmental level of villages (the smallest Egyptian local units), which would accordingly provide a precise guidance for fair...

Objective: The aim of this study is to compare subfoveal choroidal thickness (SFCT) before and after uneventful phacoemulsification using enhanced depth imaging optical coherence tomography (EDI-OCT). Background: Cataract is a major cause of visual impairment in the elderly. Cataract surgery is the most common ophthalmic surgery and is performed...

In this paper, we investigate rate adaptive radio resource allocation in visible light communication systems (VLC), to maximize the total output data rate. The proposed allocation algorithm assigns power and subcarriers to each user based on its downlink channel gain and rate constraint, while satisfying the total power constraint. The performance...

Public open spaces play an important role in achieving equity and inclusion in cities. They are vital elements that shape the urban life and public realm in communities. This paper deals with waterfronts as key spaces in the urban, social, and economic structure of the city, with reference to informal areas where accessibility poses a severe challe...

Productive urban landscape is a design concept integrating food growing and animal raising into the design of cities through public and private open spaces in an attempt to support local economic development. This research focuses on farm animals’ husbandry in cities as a type of local food production. Debates about governance tools for sustaining...

This study was conducted to determine the teratogenic effects of aflatoxin B1 (AFB1) in balady rabbits. The female animals divided into two groups control and treated, each group contained three dams. A dose of 0.05mg /kg/day AFB1 was administered by gastric intubation to pregnant rabbits on the 6th–18th day of pregnancy. The fetuses were obtained...

The need for improve performances in organization has always been a source of concern for management in both the public and the private sector. This paper sought to discuss the principle of scientific management theory as propounded by F.W. Taylor with the aim of ensuring that public services organizations adopts the principles for enhanced product...

Bluetooth is a wireless access technology where polling is used to share bandwidth among the nodes. In this paper, a new polling scheme for intra-piconet scheduling in Bluetooth piconets, Priority Gated Round Robin, is proposed. The performance of this algorithm is analyzed via simulation in different cases such as different Segmentation And Reasse...

Vacuum deposited Cd0.5Zn0.5Te thin films of different thicknesses (161–450 nm) prepared by thermal evaporation in vacuum, were found to correspond to a polycrystalline cubic crystal system and exhibited p-type semiconducting behaviour. Film optical constants were determined from transmittance and reflectance measurements at normal light incidence i...

Thirty-five extracts representing different seasonal growths of 17 marine algal species collected from the Alexandria coast were tested for anti-tumorigenic activity against Agrobacterium tumefaciens galls on potato discs. Eleven extracts (nine species) displayed > 20% inhibition of tumor initiation, with three of these (Codium tomentosum, winter;...