In this paper we consider superstring propagation in a nontrivial NS-NS background. We deform the world sheet stress tensor and supercurrent with an infinitesimal Bμν field. We construct the gauge-covariant super-Poincaré generators in this background and show that the Bμν field spontaneously breaks spacetime supersymmetry. We find that the gauge-covariant spacetime momenta cease to commute wit...

Simulation is a powerful tool for analysis and improvement of networking technologies, and many simulation packages are available. One that is growing in popularity is NS-3, the successor to the popular NS-2. It is a significant departure from NS-2, and offers many advantages and disadvantages. In this thesis, we translate and update a sophisticated WiMAX simulation model from NS-2 to NS-3, and...

  Abstract   Introduction: Diabetes mellitus accompanies with disturbances in learning, memory, and cognitive skills in the human society and experimental animals. Considering the beneficial antidiabetic potential of Nigella sativum (NS ), this research study was conducted to evaluate the effect of chronic consumption of NS on learning and memory in diabetic rats using passive avoidance and Y-m...

abstract   introduction: diabetes mellitus accompanies with disturbances in learning, memory, and cognitive skills in the human society and experimental animals. considering the beneficial antidiabetic potential of nigella sativum (ns ), this research study was conducted to evaluate the effect of chronic consumption of ns on learning and memory in diabetic rats using passive avoidance and y-maz...

Background and Objective: Neonatal sepsis (NS) is a major cause of mortality and morbidity in neonates. Correct and early diagnosis of NS can prevent its complications. The aim of this study was to investigate the relationship between the levels of thyroid hormones and procalcitonin (PCT) with NS. Materials and Methods: In this case control study, 40 term neonates with proven NS diagnosis and ...