The Asunci6n rift, eastem Paraguay, is a remarkable structure, first noticed by Degraft. It is a segmented, "Iazy Z", left-stepping rlft system, starting at Asunci6n, to the west, with a NW-8E direction. It then tums next into a E-W treneling middle saction, finally resuming, to the east, its inltlal NW-8E course. Its endings, at both extremes, are ill-defined. Total E-W length is about 150 Km,...

background: electrochemical methods, as one of the advanced oxidation processes (aops), have recently been applied to remove different contaminants from water and wastewater. this study compares the performance of anodic oxidation (ao) and electro-fenton (ef) methods on waste sludge treatment. methods: this experimental study was performed on real sludge and the effect of operating parameters s...

this paper presents a comprehensive case study on electro-mechanical analysis of mems[1] variable capacitors. using the fundamental mechanical and electrical equations, static and dynamic behaviors of the device are studied. the analysis is done for three different modes, namely: dc (static mode), small signal ac and large signal regime. a complete set of equations defining dynamic behavior of ...

tranexamic acid is generally used in the treatment of disorders that predispose one to bleeding. it is a synthetic lysine analog that has strong antifibrinolytic activity. plasminogen binds to fibrin to form plasmin, which in turn degrades fibrin into fibrin degradation products. tranexamic acid blocks the lysine binding site on plasminogen and prevents interaction with fibrin. tranexamic acid ...

introduction: incomplete anesthesia of inflamed teeth is a well known clinical occurrence and the purpose of this study was to evaluate the effectiveness of ibuprofen as a premedication in improving the quality of anesthesia in patients with inflamed teeth pulps. methods: forty patients with the diagnosis of irreversible pulpitis in one mandibular tooth were selected. two other teeth in the sam...

conclusions although almost all of the < 1 year-old children could be sedated with midazolam alone, most of the > 1 year-old children required ketamine or general anesthesia. performing circumcision when children are less than 1 year old decreases the risk of complications due to anesthesia and lowers the costs compared with performing the procedure on older children. results a total of 603 chi...

background in clinical practice, the level of sensory block in spinal anesthesia in opium abusers is lower than that in non-abusers because of adaptive changes caused by opium use. objectives the aim of this study was to investigate the level of sensory block resulting from the intrathecal administration of 0.5% bupivacaine in opium abuser patients undergoing lower extremity and lower abdominal...

background spinal anesthesia is a common procedure in the anesthesia. in some studies it has been shown that chronic use of opioids is associated with shorter duration of spinal anesthesia when local anesthetics are applied. objectives this trial was conducted in order to determine effect of fentanyl on the duration of spinal block by bupivacaine in chronic opium abusers who undergo spinal anes...

The synthesis and characterization of a unique (electro)chemiluminescent monomer based on a terthienyl system, and its corresponding polymer which is the first example of an electro-active chemiluminescent polymer bearing a pyridazine appendage, are described.

In this study, the physicochemical and sensory quality characteristics due to the influence of various thawing methods on electro-magnetic and air blast frozen pork were examined. The packaged pork samples, which were frozen by air blast freezing at -45℃ or electro-magnetic freezing at -55℃, were thawed using 4 different methods: refrigeration (4±1℃), room temperature (RT, 25℃), cold water (15℃...