This study is related to the obstacle avoidance issue for an Autonomous Underwater Vehicle (AUV). In addition to its original mission, the vehicle must ensure its own survival and therefore understand the environment in safety. The use of a Forward Looking Sonar (FLS) on AUV is one of the most efficient solutions to detect unexpected and potentially dangerous changes of the environment, like th...

Objective: Objective of this study was to review the management and outcome of 17 children with pelvi-ureteric junction obstruction (PUJO) in a duplex kidney. Materials and Methods: We analyzed our record from January 2000 to December 2011. A total of 258 pyeloplasty in a single system and 17 pyeloplasty in duplex system were performed during this period. Lower and upper pole moiety obstruction...

Poor cache memory management can have adverse impact on the overall system performance. In a Chip Multi-Core (CMP) scenario, this effect can be enhanced as every core has a private cache apart from a larger shared cache. Replacement policy plays a key role in managing cache data. So it needs to be extremely efficient in order to extract the maximum potential of the cache memory. Over the years ...

The aim of this study was to determine the feasibility, accuracy and diagnostic potential of combined static-excretory MR Urography in children with sonographically detected hydronephrosis. We prospectively evaluated 28 children (11 girls and 17 boys), mean age 8.3 years (range 2 months-16 years). Static-excretory MR Urography was performed in all cases. The results of MR Urography were compare...

Getting released from the wired world comes at a cost. Mobile devices have constraints like limited power and memory, low network bandwidth and high disconnection rates which keep them from transmitting or receiving data all the time. This signals the need to adopt a futuristic, context-aware approach in data exchanges. Therefore we need to employ some intelligent data management techniques (in...

A series of 3D oxalate-bridged ruthenium-based coordination polymers with the formula of {[Z(bpy)3][MRu(C2O4)3]}n (ZII = Zn2+ (1), Cu2+ (3, 4), Ru2+ (5, 6), Os2+ (7, 8); MI = Li+, Na+; bpy = 2,2’-bipyridine) and {[Zn(bpy)3](H2O)[LiRu(C2O4)3]}n (2) has been synthesized at room temperature through a self-assembly reaction in aqueous media and characterized by single-crystal and powder X-ray diffr...

We propose a semantic model for client-side caching and replacement in a client-server database system and compare this approach to page caching and tuple caching strategies. Our caching model is based on, and derives its advantages from, three key ideas. First, the client maintains a semantic description of the data in its cache,which allows for a compact specification, as a remainder query, o...

Purpose of the study: was to estimate the value of early assessment of response in pediatric Hodgkin lymphoma (PHL) patients using FDG-PET/CT. Methods: prospective analysis of 195 patients presented in Children’s Cancer Hospital, Egypt (CCHE) with pathologically proven untreated PHL, they underwent F-fluorodeoxyglucose positron emission tomography (F-18 FDG PET/CT) early after 2 cycles of chemo...