At the time of writing, the author was a modern matron in a surgical division of an NHS teaching hospital in London. This article considers the differences between leadership and management, and discusses the skills required by modern matrons to lead safe and successful clinical services. It also examines three leadership styles – transactional, transformational and situational – and their rele...

Applications of stream data can be found in a wide variety of domains and settings, such as supply chain (RFID sensors), energy management (smart meters), social networks (status updates) and many others. While data stream management systems (DSMS) are technologically mature, they lack standardization in terms of modeling, querying and interoperability. In addition, so far, stream processing wa...

Most modern block and stream ciphers can be expressed as certain arrangement of Vector Boolean Functions. Thus, in the context of block and stream ciphers’ design (mainly in S-boxes and combining functions respectively), it is essential to define criteria which measure the cryptographic strength of Boolean Functions and Vector Boolean Functions. Ideally, some of the following requirements must ...

For stream processing application domains, using queries to process or analyze data incoming from potentially endless streams, low latency and high throughput are key requirements. It is not easy to achieve this as many factors influence the actual runtime of query execution plans and one can not measure all of them individually. Therefore, query optimizers try to overcome this hurdle by using ...

Stream analytics on real-time events has an insatiable demand for throughput and latency. Its performance on a single machine is central to meeting this demand, even in a distributed system. This paper presents a novel stream processing engine called StreamBox that exploits the parallelism and memory hierarchy of modern multicore hardware. StreamBox executes a pipeline of transforms over record...

The encryption algorithms are designed to provide integrity and confidentiality of the messages. Modern cryptosystems are classified into three categories such as Block ciphers, Stream cipher and Hybrid ciphers of Hummingbird. This paper details about various types of block ciphers and stream ciphers. In this paper we also present the hybrid model of hummingbird and its comparison among other c...

To obtain repeatable results in modern networks, test descriptions need an expanded stream parameter framework that also augments aspects specified as Type-P for test packets. This memo updates the IP Performance Metrics (IPPM) Framework, RFC 2330, with advanced considerations for measurement methodology and testing. The existing framework mostly assumes deterministic connectivity, and that a s...

The features of a statically typed functional-dataflow model parallel computation and its mapping to the language programming Smile are considered. To provide support for architecture-independent programming, we used: functional style, an implicit managing calculations on data readiness, structured objects that representation various types parallelism. A distinctive feature approach is inclusio...