Steve Webster

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Traditionally, researchers have used either off-the-shelf models such as COCOMO, or developed local models using statistical techniques such as stepwise regression, to obtain software effort estimates. More recently, attention has turned to a variety of machine learning methods such as artificial neural networks (ANNs), case-based reasoning (CBR) and rule(More)
Angiopoietins 1 and 2 bind to Tie-2 expressed on endothelial cells and regulate vessel stabilization and angiogenesis. Tie-2(+) monocytes have been shown to be recruited to experimental tumors where they promote tumor angiogenesis. In this study, we show that 20% of CD14(+) human blood monocytes express Tie-2, and that these cells coexpress CD16(More)
A two-dimensional risk assessment system for sexual offenders was created that can classify them for risk of sexual recidivism, risk of nonsexual violent recidivism, and the composite risk of reconviction for sexual or nonsexual assaults. Receiver operating characteristic (ROC) analyses of separate follow-up samples were used for cross-validation. The(More)
The proviral genome of the 32H reisolate of simian immunodeficiency of macaques (SIVmac32H) has been cloned and sequenced. Including both long terminal repeats, it is 10277 base pairs in length and contains open reading frames for all known SIV genes (gag, pol, vif, vpx, vpr, tat, rev, env and nef). This is the first report of an infectious SIVmac molecular(More)
In recent years there has been a growing interest in empirically investigating object-oriented technology (OOT). Much of this empirical work has been experimental in nature. This paper reviews the published output of such experiments—18 in total—with the twin aims of, first, assessing what has been learnt about OOT and, second, what has been learnt about(More)
We recently described the Palate Lung Nasal Clone (PLUNC) family of proteins as an extended group of proteins expressed in the upper airways, nose and mouth. Little is known about these proteins, but they are secreted into the airway and nasal lining fluids and saliva where, due to their structural similarity with lipopolysaccharide-binding protein and(More)
Telecare services use information and communications technology (ICT) to support the provision of care to people in their own homes. This paper describes a pilot telecare service employed by Liverpool (UK) City Council to support a sample of their frail and elderly social services users. The pilot has been running for over two years and has been deployed(More)