adopting the critical discourse analysis framework, in general, andfairclough’s (1989) critical text analysis, in particular, the current study aims atexamining 3 aspects of meaning, namely social relations, subject positions, andcontents in the conversation as well as vocabulary and grammar parts of passages 1(an american textbook) and first certificate (a british textbook) to find out whether...

Adopting the critical discourse analysis framework, in general, andFairclough’s (1989) critical text analysis, in particular, the current study aims atexamining 3 aspects of meaning, namely social relations, subject positions, andcontents in the conversation as well as vocabulary and grammar parts of Passages 1(an American textbook) and First Certificate (a British textbook) to find out whether...

Background: Verbal Autopsy Questionnaire (VA) is an important tool to estimate the cause of death among those populations lacking an appropriate death registration system. In this study, the validity and reliability of verbal autopsy were assessed.    Methods: The Persian version of the questionnaire was prepared using the translation and back- translation method. In the first and se...

Public key infrastructure provides a promising foundation for verifying the authenticity of communicating parties and transferring trust over the internet. The key issue in public key infrastructure is how to process certificate revocations. Previous research in this aspect has concentrated on the tradeoffs that can be made among different revocation options. No rigorous efforts have been made ...

Certificate-based cryptography is a new public-key cryptographic paradigm that has very appealing features, namely it simplifies the certificate management problem in traditional public key cryptography while eliminating the key escrow problem in identity-based cryptography. So far, three authenticated key agreement (AKA) protocols in the setting of certificate-based cryptography have been prop...

proposed death certificate form ahangarzade rezaee s* received: 16 july, 2010 accepted: 25oct, 2010 abstract background & aims: health is the most important issue for the development of social justice in all developing countries. human life is strongly linked to accidents, injuries, and diseases that cause millions of deaths annually in the world. death record information is obtained through de...

Certificate-based encryption was introduced in Eurocrypt’03 to solve the certificate management problem in public key encryption. Recently, this idea was extended to certificate-based signatures. Several new schemes and security models of certificate-based signatures have been proposed. In this paper, we first take a closer look at the certificate-based signature by comparing it with digital si...