background: the purpose of this work is to discover and analyze errors and incidents in some radiotherapy centers, and to introduce methods that could reduce their occurrences, especially those which had happened due to the use of improper and inadequate equipment. this work is a first step toward clarifying the role of education in a risk-conscious culture, and changing the attitude of radioth...

A lot of designated verifier signature (DVS) schemes have been proposed. However, all of them only provide the basic security requirement that only the designated verifier can check the validity of the signature. They are either not secure enough or lacking source hiding. Hence, in this article, we design a provably secure DVS scheme. It not only can attain the basic security requirement but al...

Visual document authentication is a method by which humans can check document authenticity directly, without relying on computers for cryptography. In order to be applicable, it is essential that the document is represented as an image, recognizable to humans. Representing text documents as images has a series of drawbacks, like high memory and bandwidth requirements. In this paper we present t...

Order checks are important error prevention tools when used in conjunction with practitioner order entry systems. We studied characteristics of order checks generated in a sample of consecutively entered orders during a 4 week period in an electronic medical record at VA Puget Sound. We found that in the 42,641 orders where an order check could potentially be generated, 11% generated at least o...

In the past two years many universities and services have been implementing OpenURL technology that enables users to move 'seamlessly' from one service to another. SFX technology is an example that allows users to follow up references and check whether they can access full text electronic versions of articles. This evaluation explores a number of implementations of SFX and reports user experien...

Developing countries like India, where doctor to patient ratio is around 1:1700, as large number of population lives in villages and remotely located area. Health check-up of such a large population is very challenging for their government due to less number of qualified doctors, highly qualified doctor refuges to work in villages and remotely placed areas. This paper proposes a new idea by whi...