the importance and various applications of information technology have made fundamental changes in all organizations. the aim of the present study was to identify and prioritize the obstacles to the application of information technology in sport and youth offices using fuzzy topsis technique. the study had an application purpose and used a descriptive-survey methodology and data were collected ...

This paper describes various techniques of accessing objects hidden behind obstacles in virtual environments. We show some of well known interaction techniques that are suitable for usage in this case. Next, we introduce new Head Manipulator method and several aids that allow a user to change the visibility of objects. We propose several combinations of interaction techniques and discuss their ...

An earlier study showed that low attendance at section 63 courses of continuing education was not explained by dissatisfaction with content or methods employed in these programmes. In this enquiry to the same sample of 105 general practitioners, several additional factors were studied related to enjoyment of professional role, practice skills and perceived obstacles to continuing education. Thi...