urinary tract infection is a common pediatric problem and vesicoureteral reflux is its most common complication. detection of this reflux has classically been achieved by voiding cystouretrography (vcug). ultrasonography for evaluation of vesicoureteral reflux is shown to be feasible but is not widely accepted. our aim was to assess the value of routine sonography in detecting vesicoureteral re...

With the rapid development of social economy, integrated circuit industry has developed rapidly. At same time, people’s requirements for cost, power consumption, integration, stability and other aspects chips have increased. Oscillators, as an important module providing clocks to chips, higher on-chip oscillators. The purpose this paper is achieve a low supply voltage sensitive oscillator. Base...

Contrast sensitivity (CS) is widely used as a measure of visual function in both basic research and clinical evaluation. There is conflicting evidence on the extent to which measuring the full contrast sensitivity function (CSF) offers more functionally relevant information than a single measurement from an optotype CS test, such as the Pelli-Robson chart. Here we examine the relationship betwe...

objective: to evaluate the capability of ascitic fluid dipstick results for ph, glucose, and protein in order to predict a low serum-ascites albumin gradient (saag) at the bedside of the patient in the emergency department (ed). methods: this prospective cross-sectional study was conducted during one year in the ed of afzalipour hospital in kerman, iran. all patients with diagnostic or therapeu...

objectives: this study aimed to assess the effect of voxel size and object location in the field of view (fov) on diagnostic accuracy of cone beam computed tomography (cbct) for detection of simulated bone defects. materials and methods: in this in vitro study, bone defects were drilled in four sections of a dry human mandible. bone blocks were fixed on a platform parallel to the horizontal pla...

purpose: to determine the effect of occluding a normal eye on visual acuity, contrast sensitivity and stereopsis in amblyopic school children. methods: amblyopic children from primary schools of region 2 in mashhad were identified and referred to optometry clinics of mashhad medical university through a screening program. informed consent was obtained from the parents. all subjects underwent an...

dear editor: thank you for your letter ref. no 2003-2 dated 7 november 2010 regarding the comments of an ophthalmologist from thailand named professor viroj wiwan on my article titled “evaluation of contrast sensitivity, color vision and visual acuity in patients with and without diabetes”. he has suggested that the combination of existing tests may be a good way to increase the sensitivity of ...