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Ad-hoc networks are becoming an effective tool for many mission critical applications such as troop coordination in a combat field, situational awareness, etc. These applications are characterized by the hostile environment that they serve in and by the multicast-style of communication traffic. Therefore, authenticating the source and ensuring the integrity(More)
This paper introduces a novel optimization strategy for increasing the resource efficiency and security of data routing in a wireless sensor network. Most secure routing schemes found in the literature provision security at the highest level by involving sophisticated data encryption with a large key. This imposes lots of overhead both in computation, while(More)
— Multicast streams are the most popular traffic pattern in many applications of mobile ad-hoc networks (MANET). However, the mobility of nodes causes frequent changes to the network topology and thus efficient routing of multicast traffic becomes very challenging. The establishment of a core-mesh has been deemed as a very effective solution for these(More)
  • O A Farrag
  • 1987
Three tight regimens to maintain blood sugar values of 5.6 SI (group A), 5.6-6.7 SI (group B), and 6.7-8.9 SI (group C), were studied in 60 pregnant diabetic patients. The perinatal salvage rate was 96.6%. Maternal hypoglycaemia occurred only in group A. The group C regimen produced more complications than occurred in the other 2 groups. Very tight control(More)
Two-hundred-and-eighteen gynaecological patients were screened for group B-beta haemolytic streptococci (GBS) colonization of the vagina, cervix, urethra and rectum. The overall colonization rate was 17%. There is no relation between the rate of colonization and the patient's age or parity. The colonization rate among the intrauterine contraceptive device(More)
—Multicast streams are the dominant application traffic pattern in many mission critical ad-hoc networks. The limited computation and communication resources, the large scale deployment and the unguaranteed connectivity to trusted authorities make known security solutions for wired and single-hop wireless networks inappropriate for such application(More)
Labor was induced with two low-dose regimens of prostaglandin E2 (PGE2) tablets in 46 high-parity women at term who had singleton pregnancies with a success rate of 97.8%. Of the successfully induced patients, 42 had vaginal delivery and three were delivered by cesarean section for cephalopelvic disproportion. There was one failure of induction. Both dose(More)