9 articles in this issue
Eissa D Habil,Khalid A Elzenati
An isotonic space (X, cl) is a set X with isotonic operator cl : P(X) ! P(X) which satisfies cl(;) = ; and cl(A) cl(B) whenever A B X. Many properties which hold in topological spaces hold in isotonic spaces as well. We explore the topological concepts... see more
Hala J El-Khozondar,R. J El-Khozondar
Temperature sensitivity plays an important role in developing optoelectronic devices such as optical waveguide sensors. Thermal-stress effect can be used to control temperature sensitivity. The solution to estimate the stress induced effective index chang... see more
Hala J El-Khozondar,R. J El-Khozondar,Mohammed M Shabat
A theoretical approach to study the influence of temperature stress of the thermal sensitivity of the effective refractive index for asymmetrical nonlinear optical waveguides is developed. The structure of the waveguide sensor consists of thin film surrou... see more
Abdel Fattah N Abd Rabou ,Maged M Yassin,Fadel A Sharif,Mohammed R Al-Agha,Kamel S Abu Daher,Abdel Karim S Ali,Dawi M Hamad
The wetland ecosystem of Wadi Gaza is a major source of mosquitoes (Diptera: Culicidae) in the Gaza Strip due to its water content that comes from different sources including wastewater. Local inhabitants usually complain from mosquito proliferation and a... see more
Bassam H Saqqa,Ibrahim M Qadura
Using the adiabatic approach, the effect of an external magnetic field on the bound polaron is investigated. The energy, the number of phonons around the electron, and the size of the polaron are calculated for the ground state, and for the first two exci... see more
Bassam A Abu Shanab,Ghaleb M Adwan,Kamel M Adwan,Farah B Abu Shanab
Nine medicinal plants growing in Palestine were screened in vitro for potential antibacterial activity against 6 bacterial strains by well diffusion and micro-dilution techniques. Both aqueous and organic solvents were used. The dried extracts of Sacropot... see more
Hany M Dalloul,Nasser S El-Abadlaa,Ahmed S Abu Samahab
A series of new 1,2,4-triazole derivatives (6a-p) have been synthesized by the reaction of amidines 3 with certain nitrilimines 2. The structures of newly synthesized compounds are confirmed by their analytical and spectral data including IR and NMR. Key ... see more
Abdelraouf A Elmanama,Mofeed M Mokhallalati,Rana M Abu-Mugesieb
Helicobacter pylori (H. pylori) infection is usually acquired in early childhood. H. pylori infection is associated with several upper gastrointestinal disorders. Local data on the epidemiology of the infection are scarce in Palestine. The purpose of this... see more
Hatem Hamad
Most researches today trend to clustering in ad hoc networks for building hierarchies to solve management problems in flat architectures. Clustering aims to elect suitable nodes as representatives to lead the network, called Cluster Heads (CHs). Frequent ... see more