We present detailed and in depth analysis of Elementary Cellular Automata (ECA) with periodic cylindrical configuration. The focus is to determine whether Cellular Automata (CA) is suitable for the generation of pseudo random number sequences (PRNs) of cryptographic strength. Additionally, we identify the rules that are most suitable for such applications. It is found that only two sub-clusters...

The simple event-condition-action (ECA) rule paradigm of active databases has proved very useful in many AI and database applications. However, its applicability goes beyond data management. ECA rules can be used in network management and monitoring , electronic commerce, security and access management, and other application areas to express policies { collections of general principles specifyi...

Efficient organisations need to ensure that their business processes are flexible so that these processes can easily accommodate changes in regulations and policies. Appropriate techniques to model and verify these processes are required. In this paper, we present a rule-based approach, which is built upon the event-condition-action model (ECA) and supported by a rule-based business process def...

Active object-oriented database management systems incorporate object-oriented database technology and active mechanisms such as event-condition-action rules (ECA-rules). SAMOS has been among the first representatives of this class of systems. During the development of SAMOS, numerous then open research questions have been addressed. In this paper, we present a “historical” perspective of the S...

We describe here the purification and quantification of a water-soluble cyclic form of enterobacterial common antigen (ECA(CYC)) from Escherichia coli K-12 as well as information regarding its subcellular location and the genetic loci involved in its assembly. Structural characterization of purified ECA(CYC) molecules obtained from E. coli K-12 revealed that they uniformly contained four trisac...

MicroRNAs (miRNAs) regulate post-transcriptional gene expression and may be exported from cells via exosomes or in partnership with RNA-binding proteins. MiRNAs in body fluids can act in a hormone-like manner and play important roles in disease initiation and progression. Hence, miRNAs are promising candidates as biomarkers. To identify serum miRNA biomarkers in the equine model of asthma we in...

We present a mechanism for handling “barge-in” interruptions from a user who is engaged in a ’social’ conversation with an Embodied Conversational Agent (ECA). The ECA is designed to recognise and be empathetic to the emotional state of the user. Occasionally, the ECA will attempt to positively influence the user’s emotional state through the conversation. A characteristic of these conversation...

The apparent soil electrical conductivity (ECa) was continuously recorded in three successive dates using electromagnetic induction in horizontal (ECa-H) and vertical (ECa-V) dipole modes at a 6 ha plot located in Northwestern Spain. One of the ECa data sets was used to devise an optimized sampling scheme consisting of 40 points. Soil was sampled at the 0.0-0.3 m depth, in these 40 points, and ...

1 RuleML is a family of XML languages whose modular system of schemas permits high-precision (Web) rule interchange. The family’s top-level distinction is deliberation rules vs. reaction rules. In this paper we address the Reaction RuleML subfamily of RuleML and survey related work. Reaction RuleML is a standardized rule markup/serialization language and semantic interchange format for reaction...