Thick Domain Walls and Charged Dilaton Black Holes

We study a black hole domain wall system in dilaton gravity which is the low-energy limit of the superstring theory. We solve numerically equations of motion for real self-interacting scalar field and justify the existence of static axisymmetric field configuration representing the thick domain wall in the background of a charged dilaton black hole. It was also confirmed that the extreme dilaton black hole always expelled the domain wall.Comment: 10 pages, 8 figures; to be published in Phys. Rev. D1

Comparing the Incidence of Pulmonary Edema in Anesthesia (with or without use of morphine and lasix) in Children Undergoing PDA Surgery

Abstract: Introduction: Patent ductus arteriosus (PDA) is a congenital cardiovascular disorder found in patients of all ages, from tiny premature infants to older adults (1). Persistent patent ducts arteriosus often cause hemodynamic and respiratory disorders, which require use of inotropic drugs and respiratory support in the full term infants.. Surgical ligation should be considered for patients when medical therapy fails (2). The aim of this study was two anesthesia techniques evaluation for pulmonary edemas reduce in PDA surgery . Methods and Materials: In this study, 120 patients underwent PDA surgery, Patients were divided into two groups of 60, the patients in first group received morphine and lasix during anesthesia but second group received nothing. Results: The average age of the patients in the case and control groups was 32.8 and 31.36 months. Frequency of Male and female in case and control groups was 38.3%, 61.7% and 45%, 55%, respectively. In control group, from 60 patients, 18.3% had pulmonary edema and 5% of them had loss of consciousness. There was significant difference between case and control groups about patients with pulmonary edema. Also, RR (0.001), Pao2 (p=0.005), PH (p=0.01) and PR (P= 0.003) had significant difference in cases and controls. Conclusion: The findings of this study suggest that the use of morphine and Lasix is useful for reduction of pulmonary edema after PDA surgery. Further studies are needed to find the better management method