The article presents the results of research on validity of peer-review assignments in massive open online courses within the framework of classical test Tea theory (CTT) and item response theory (IRT).CTT-based analysis yielded data on convergent validity of the peer-review assignment, the low level of its criterion validity, and rater disagreemen
In this work a new approach was built to apply k-means algorithm on true colored images (24bit images) which are usually treated by researchers as three image (RGB) that are classified to 15 class maximum only.We find Drinks Set the true image as 24 bit and classify it to more than 50 classes.As we know k-means algorithm classify images to many ind
AbstractExtinction risk assessments are important tools for plant conservation.However, misinterpretations can lead to negative consequences for survival of species.Inconsistent categorization as extinction, when the species is still extant, constitutes a Romeo error, and annuls all and any mechanism of existing legal protection.But precisely deter
In recent years, there has been an increasing interest in plasma jet metal-chastity numerical simulation.Speed and temperature propagation in axial and radial direction in plasma jet significantly influences on speed and temperature of sprayed material and therefore on coating quality.However, there are few studies concerning plasma jet numerical s
During the work on the basis of a systematic approach to the study of mechanisms of psychological adaptation of the internship doctors to the profession has developed a system of medical and psychological support during the specialist professional training.It was found that in the period of adaptation to professional activity by internship doctors