background: the primary goal of antenatal testing is to identify fetuses at risk of intrauterine neurologic injury or death so that these adverse outcomes can be prevented. we want to assess nonstress test (nst) results and some parameters before and after vibro-acoustic stimulation and acupressure. we did a randomized controlled clinical trial in shahid-beheshti hospital in isfahan in 2011. ma...

b a ckground:   eco-faunistic  studies  are  inevitable  step  in  environmental  researches.  aquatic  organisms  like caddisflies are known as biological indicators for water quality assessment and water resource management. they have special role for energy flow in the freshwater habitats as food web and food chain among aquatic creatures. methods: in addition to an extensive literature revi...

concerns about increasing bacterial resistance to vancomycin, have caused the adult treatment guidelines to recommend higher trough concentrations based on the type and location of infectious disease. although these recommendations are not specific to children, the values can be extrapolated. this prospective study was designed to evaluate efficacy of current vancomycin dosing recommendations t...

slope stability analysis is a geotechnical engineering problem characterized by many sources ofuncertainty. in slope stability computations, some of these sources are encountered, such as geologicaldetails missed in the exploration program, estimation of soil properties that are difficult to quantifyand many other relevant factors. therefore, accurate reproduction of the spatial variability in ...

abstract objective: to determine the correlation between blood gas parameters and central venous pressure (cvp) in patients suffering from septic shock. m e t h od s : forty adult patients with diagnosis of septic shock who were admitted to the emergency department (ed) of shohadaye tajrish hospital affiliated with shahid beheshti university of medical sciences, and met inclusion and exclusion ...

styrene is an important constituent of widely used organic solvents in industries for production of various synthetic materials. the use of solid-phase extraction (spe) has grown and is a fertile technique of sample preparation as it provides better results than those produced by liquidliquid extraction. in this study, spe has been optimized, regarding sample ph, sample concentration, sample fl...

The aim of this paper is to present the results coming from an experimental campaign aimed at definition vibrations acting on a powered and trailer bogie railway vehicle for mass rapid transit during commercial service. results, multiple sensors placed in specific points two wheelsets, can give significative overview dynamic behaviour components, highlighting, when present, notable differences....

The normal operating state of jointless and butt track circuits depends on the change in insulation resistance; respectively, correct choice maximum minimum limit resistance characteristics should be considered. power consumption unlimited circuit mode movement wheelset at supply end rail line. article presents a study an intelligent without insulated joints, where logical elements replace all ...

While the track irregularity in turnout areas has a significant impact on wheel-rail contact, driving safety, and stability, of front incoming vehicles is often overlooked. This paper fills gaps study. As result, rigid-flexible coupled dynamic model vehicle developed. The effect various irregularities performance at high speeds been investigated based random sampling method. results show that d...