Ubiquitous computing can be thought of as consisting of two parts, firstly the devices that a user owns and may or may not carry around and secondly the devices that form a “ubiquitous infrastructure”, the smart environment. While the first part is usually considered to be under the administration of the user, the second part is not under his control. How can a user verify proper administration...

The role of a chairman of a psychiatric division is complex and demanding. This article looks at some of the problems but does not pose many solutions. It is unfortunate that some of the recent committees of inquiry into psychiatric services do not appear to have been aware of all the problems. Some clarification of the difficulties may be timely. Long Grove Hospital is a large mental illness h...

The SAS administrator exists in all types of organizations: small, medium, large, etc. This paper focuses on medium-to-large scale SAS ® System implementations. The SAS Administrator is not a position as much as it is a role. It can be a single individual or a team comprised of SAS-trained personnel, along with other IT staff within a company. While this role is very important, it is often not ...

To investigate cyber-criminals, Police sometimes asks Administrator of a computer system to disclose the whole transaction log. Administrator, however, wants to protect the privacy of innocent users. This paper presents a solution for the disclosure/privacy problem of transaction log. In this scheme, Police can search over the encrypted records of the transaction log by keywords. The administra...

This work presents an efficient and effective system allowing hospitals to share patients’ private information while ensuring that each hospital database’s medical records will not be leaked; moreover, the privacy of patients who access data also protected. We assume thread model hospital’s security is semi-honest (i.e., curious but honest), hired a trusted department administrator manage from ...