at the present, many drugs are used for inhibition of uterine contractions, but the proportions of preterm labors are increasing. although magnesium sulfate is the most commonly prescribed parenteral tocolytic agent, but its optimal use has yet to be delineated. in this study a high-dose protocol for magnesium sulfate tocolytic therapy was compared with a low-dose regimen. one-hundred patients ...

introduction: the use of laser for cavity preparation or conditioning of dentin and enamel surfaces as an alternative for dental tissue acid-etch have increased in recent years. the aim of this in vitro study was to compare microleakage at enamel-composite and dentincomposite interfaces following erbium-doped yttrium aluminum garnet(er:yag) laser conditioning or acid-etching of enamel and denti...

introduction : this investigation evaluates the effects of mineral trioxide aggregate (mta), calcium hydroxide (ch) and calcium enriched mixture (cem) as pulp capping materials on dental pulp tissues. materials and methods: the experimental procedures were performed on eighteen intact dog canine teeth. the pulps were exposed. cavities were randomly filled with cem, mta, or ch followed by glass ...

for a long time, culture has been an influencing parameter in negotiations. growth of international trades and business competitions has increased the importance of negotiations among countries and different cultures. developing new technologies, particularly the use of artificial intelligence in electronic trading areas, has provided us with the application of intelligent agents to resolve cha...

purpose: to determine any possible correlation between delayed ocular complications with late-onset complications of mustard gas poisoning in other systems including skin, respiratory tract, and immunohematologic system. methods: the study was conducted on 40 chemical war victims in khorasan province, iran. ophthalmologic and dermatologic examinations and spirometry were performed for all patie...

introduction: iatrogenic aortocoronary dissection (acd) is a nightmare in interventional cardiology. although acd is rarely reported, the real-world prevalence is suspected of being higher due to unreported cases. the right coronary artery (rca) ostium is involved in the majority of cases, and dissections are usually limited to the aortic sinus in half of the clinical presentations. there are d...

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objective(s): the aim of this work was to prepare and characterize magnetic nanoparticles (mnps) as theranostic system to act simultaneously as drug carrier and mri contrast agent. chitosan-coated mnps (cmnps) were prepared and loaded with silymarin. silymarin-loaded cmnps were characterized with various techniques and their potential as mri contrast agent was also evaluated. materials and meth...