Background: According to the situation of education in Iran it is clear that over the years, there has been no successful attempt to identify related challenges and problems to development and implementation of virtual training. In this regard, the effect of this type of training influenced by the role of hidden curriculum of education in the country.   Based on this, current study has investig...

background: the i-space is a radiological imaging system in which computed tomography (ct)-scans can be evaluated as a three dimensional hologram. the aim of this study is to analyze the value of virtual reality (i-space) in diagnosing acute occult scaphoid fractures.   methods: a convenient cohort of 24 patients with a ct-scan from prior studies, without a scaphoid fracture on radiograph, yet ...

the purpose of this study was to evaluate the rate of using standards of designing electronic courses in educational contents of state-virtual universities in iran. the method of the study was a descriptive-survey one. the statistical population was the educational content of electronic courses in state-virtual universities such as university of science and technology, and shiraz university. da...

We present a novel fragment-based approach that tackles some of the challenges for chemical biology of predicting protein function. The general approach, which we have termed biofragments, comprises two key stages. First, a biologically relevant fragment library (biofragment library) can be designed and constructed from known sets of substrate-like ligands for a protein class of interest. Secon...

in order to evaluate the effect of substrate and enrichment material on biological efficiency (be) and other physical and chemical propertiese of medicinal mushroom shiitake (lentinula edodes) an investigation was perfomed as factorial experiment in completely randomized designe with four replications in khorramabad city of lorestan continent iran. experimental factors were substrate in three l...

Strained Siand SiGe-based heterostructure MOSFETs grown on relaxed SiGe virtual substrates exhibit dramatic electron and hole mobility enhancements over bulk Si, making them promising candidates for next generation CMOS devices. The most heavily investigated heterostructures consist of a single strained Si layer grown upon a relaxed SiGe substrate. While this configuration offers significant pe...

There is abundant literature regarding virtual reality as a technology of interest in the present age. However, there are few comprehensive studies on strategies that can improve the level of urban design research using this technique. To investigate the issue, this paper first reviews the concept of virtual reality. Next, the opinions of experts in the field of virtual reality technology are s...

Infrared detector barrier heterostructures with strained layer superlattice (SLS) absorbers different periods were compared. The first was a reference using conventional heterostructure low temperature energy gap corresponding to wavelength of 10 ?m in 2- ?m-thick undoped absorber 10.9 nm period InAs/InAsSb 0.36 compositions grown directly on GaSb substrate. second structure, contrast, used sig...