Objective: the present meta-analysis was designed to determine the value of Pediatric Emergency Care Applied Research Network (PECARN) rule in prediction of clinically important traumatic brain injury (ciTBI).Methods: Extensive search was conducted in the databases of Medline, Embase, Scopus, Web of Sciences, Cinahl up to the end of August 2017. The search records were screened and summarized b...

background and objective: intraoperative consultation by frozen section is a high – risk procedure with important consequences. therefore, it is critical to determine efficiency of frozen section performance periodically. this study was performed to determine the accuracy of frozen section in urmia university of medical sciences. materials & methods:inthis cross sectional study, we compare...

One of the hallmarks of perceptual learning is specificity, the lack of transfer of the improved discriminative ability when the trained stimulus changes retinal location, orientation or other basic visual attributes. Specificity has been found also for the trained task and the corresponding attended stimulus feature. Here, we provide evidence for a new form of specificity, called reference-fra...

lack of unified system in characterizing and reporting thyroid nodules is deeply felt almost in every institution and is a source of confusion among diagnostic radiologists, pathologists, thyroid surgeons, oncologists, endocrinologists and interventionalists. elaborate systems exist but they are not easy to use. therefore many of those systems cannot be utilized widely in general radiology prac...

Greater feedback specificity is generally considered to be beneficial for performance and learning, but the evidence for this generalization is limited. The authors argue that increasing the specificity of feedback is beneficial for initial performance but discourages exploration and undermines the learning needed for later, more independent performance. The results of their transfer experiment...