conclusions the addition of magnesium sulfate to lidocaine increased the duration of motor and sensory axillary block in the upper extremities during surgeries when compared to the use of lidocaine alone. results a total of 60 patients were included in the study with 30 patients having received lidocaine plus magnesium and the other 30 patients having received lidocaine plus normal saline. the ...

background: muscle relaxant agents usually use to facilitate tracheal intubation; however, sometimes limitations exist. magnesium (mg) sulfate is a candidate for muscle relaxant substitute. this study was designed to determine the effect of mg sulfate accompanied with propofol and fentanyl in patients undergoing ophthalmic surgery. materials and methods: in a double?blind randomized protocol an...

preeclampsia is a major cause of morbidity and mortality during pregnancy. several independent investigators have demonstrated the association of androgens with hypertension. the main purpose of this study was to determine whether maternal levels of sex hormones, especially testosterone, are higher in patients with preeclampsia than in matched normotensive control subjects. serum levels of test...

Two basic methods have been used to relate the change in droplet number concentration to aerosol number concentration. The first method uses empirically derived relationships based on either observed aerosol number concentrations and droplet concentrations or observed aerosol sulfate or droplet mass concentrations and droplet number concentrations. This method was followed by Jones et al. (1994...

The injection of seawater into a hydrocarbon reservoir (seawater flooding) as secondary or tertiary oil recovery method is associated with two possibly significant challenges. First, the formation and deposition various types scale may happen due to incompatibility between brine. Especially, addition sulfate ions trigger scales (e.g., barium sulfate, strontium calcium sulfate). Second, microbia...