Encryption provides strong security for databases. To develop a database encryption strategy, many factors must be taken into consideration. Organizations must balance between the requirement for security and the desire for excellent performance. In this paper a novel encryption algorithm is proposed “Reverse Encryption Algorithm (REA)”. The proposed algorithm REA is simple and yet leads to a c...

Reactive arthritis (ReA) has traditionally been described as a nonseptic arthritis occurring in the joint following an extra-articular bacterial infection. This concept became clinically associated with antecedent infections of either the gastrointestinal or genitourinary tract. Yet this operational definition of ReA has led to diagnostic uncertainty in different clinical settings. There are se...

Value chain model is a network of business processes that are bound by inflows and outflows of resources. REA (resource-event-agent) is an ontology based on value oriented perspective of resources. REA value chain is a sequence of REA models (processes) utilizing REA ontology. The essence of value chain modeling is to get an overview over the business processes of the enterprise and to validate...

Reactive arthritis (ReA) is a sterile synovitis which occurs after a gastrointestinal or urogenital infection. ReA belongs to Spondyloarthritis (SpA), a group of diseases that share several clinical and radiological features including familiar clustering, absence of rheumatoid factor and association with HLA-B27. Clinically, ReA is characterized by an asymmetric arthritis predominantly affectin...

The Resource-Event-Agent (REA) ontology is a powerful and well accepted approach towards the design of accounting information systems (AIS). However, the REA notation that is currently based on class diagrams is not very intuitive for business experts. Accordingly, we aim at a REA domain specific modeling language that facilitates the communication between business experts and IT professionals....

In this paper, the author investigates the effect on understanding of using business domain models that are constructed with Resource-Event-Agent (REA) modeling patterns. First, the author analyzes REA modeling structures to identify the enabling factors and the mechanisms by means of which users recognize these structures in a conceptual model and description of an information retrieval and in...

Background and aims To determine the relationship between the risk of exercise addiction (REA) and health status in amateur endurance cyclists. Methods In 859 (751 men and 108 women) cyclists and 718 inactive subjects (307 men and 411 women), we examined the REA (Exercise Addiction Inventory), training status (volume, frequency, experience, and performance), socioeconomic status, quality of lif...

This chapter presents a discussion of the REA approach to business process modeling. This is followed by a discussion of the shortcomings of traditional database applications. The third section looks more deeply into the development of an REA model. A thorough example of how the REA process is carried out is presented. The objectives of this chapter are: ! to recognize the limitations of tradit...

Ultrasonic measurements of fat thickness (FAT) and ribeye area (REA) were analyzed together with weight (WT), scrotal circumference (SC) and age data from 385 yearling Hereford bulls representing 45 sires. Additional variables created were 100*REA/WT (REACWT) and 365-d adjusted REA (AREA). Multiplicative age adjustment for AREA was calculated from linear regression of REA on age. Heritabilities...