to be fairly general and catalyst is easily separated by magnetic devices and can be reused without any apparent loss of activity for the reaction. fe3o4 nanoparticles were prepared by chemical coprecipitation method and was found to be a mild and effective catalyst for the efficient, one-pot, three-component synthesis of 2,4,5-trisubstituted imidazoles at room temperature under ultrasound irra...

purpose: transcranial magnetic resonance guided focused ultrasound (mrgfus) is a new development in the field of functional neurosurgery. a comprehensive review of the current literature was performed to evaluate of transcranial mrgfus in treatment of essential tremor (et) and parkinson’s disease. methods: articles available in electronic databases of pubmed, and web of science, as of july 2016...

in light of provided progresses in ultrasound measurements of lateral abdominal muscles, an important role for these muscles, particularly transverse abdominis (tra) muscle in stability of the spine has been suggested. some authors have found significant correlations between body mass index (bmi) and thickness of these muscles. the aim of this study was to examine possible association between d...

conclusions it seems that fast examination for intra-abdominal fluid in blunt trauma patients can predict intra-abdominal injuries with very high sensitivity and specificity. using the scoring system can more accurately determine the probability of the presence of abdominal injuries with a cut-off point of three. results the mean age of the patients was 29.6 ± 18.3 years and fast was positive i...

Background Meconium ileus (MI) is one type intestinal obstruction due to inspissated meconium at the level of the terminal ileum. The purpose of this study is to present the non-ionizing ultrasound-guided approach for the treatment of meconium ileus. Materials and Methods This study was performed, prospectively, at Dr. Sheikh and Akbar children's Hospitals, Mashhad University of Medical Science...

it is over several decades that ultrasound is used to enhance the transdermal drug delivery (phonphoresis). the mechanism of the enhancement is not fully understood and the ability of ultrasound on the enhancement for some drugs is unclear. the effect of continuous wave 870 khz ultrasound at intensity of 1 w/cm 2 for 15 minutes on transdermal absorption of piroxicam from solution and gel formul...

In spite of wide spread investigations performed,the biological effects of ultrasound waves,specially on DNA molecule has not been fully understood.since any alteration in DNA molecule can lead to chromosome abnormality,the study of clastogenic effects of ultrasound is important.in this study,the effect of 1MHz frequency continuous waves with the power of 0.5,1 and 1.5 watts on G human lymphocy...

Introduction: Phonophoresis is the use of ultrasound to enhancing cellular drug delivery through the skin. In this study the effect of clobethasole and hydrocortisone ointments phonophoresis on pain, knee osteoarthritis and some other symptoms was studied. Methods: An experimental single blind randomized clinical trial (RCT) was used. An available sampling technique was used for selection o...