the infratemporal fossa is an anatomic space of great importance in the head.abscesses of this space re rare but potentially life threatening. regarding the proximity of some important anatomical features of the head, dealing with infratemporal space infection needs great consideration both in examination and surgical practice.in  this  case  report,  infratempora  space  abscess  formation  fo...

the nature of software re-engineering is to improve or transform existing software so it can be understood, controlled and reused as new software. Needs, the necessity of re-engineering software has greatly increased. The system software has become obsolete no longer used in architecture, platform they're running, stable and consistent they support the development and support needs change. Soft...

Despite its undoubted success in the last two decades, requirements engineering needs a better alignment between its research focus and its grounding in practical needs as these needs have changed significantly. We identify and explore changes in the environment, targets, and the process of requirements engineering (RE) that influence the nature of fundamental RE questions. Based on these explo...

globalization, as the most important change at recent age, depends on developing of science, technology and information. it has several effects on aspects of human activities such as social and political studies and changing ideas. moreover, power, the central concept in politics, has confronted different approaches. so, any subject, e.g. political development, needs re-definition and re-explan...

Requirements engineering (RE) is often seen as an essential facet in software development. It is a vital process before each project starts. In the context of systems engineering, an understanding and application of systems theory and practice is also relevant to RE. The contexts in which RE takes place habitually involve human activities. Therefore, RE needs to be sensitive to how people perce...

In this paper, we review current requirements engineering (RE) research and identify future research directions suggested by emerging software needs. First, we overview the state of the art in RE research. The research is considered with respect to technologies developed to address specific requirements tasks, such as elicitation, modeling, and analysis. Such a review enables us to identify mat...

The notion of proxy cryptography is very useful in cases when one user needs to perform sensitive operation without holding the necessary secret key. Recently, proxy reencryption scheme received much attention due to its application in information storing, secure email, etc. In this paper, we propose a proxy re-encryption used to divert ciphertext from one group to another. The scheme is bidire...