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In spite of years of effort, plagiarism in student assignment submissions still causes considerable difficulties for course designers; if students' work is not their own, how can anyone be certain they have learnt anything? YAP is a system for detecting suspected plagiarism in computer programs and other texts submitted by students. The paper reviews YAP3,(More)
It has argued that systems for detecting similarities in submitted programs must be based on the analysis of program structure. One such system is “Plague”. In this paper, some difficulties with the Plague system are outlined and a new system is described that achieves the same goals as Plague, but in a way that is both more portable and more(More)
BACKGROUND The late embryogenesis abundant (LEA) proteins cover a number of loosely related groups of proteins, originally found in plants but now being found in non-plant species. Their precise function is unknown, though considerable evidence suggests that LEA proteins are involved in desiccation resistance. Using a number of statistically-based(More)
Sequences from ribosomal RNA (rRNA) genes have made a huge contribution to our current understanding of metazoan phylogeny and indeed the phylogeny of all of life. That said, some parts of this rRNA-based phylogeny remain unresolved. One approach to increase the resolution of these trees would be to use more appropriate models of sequence evolution in(More)
BACKGROUND Endocrine disruptor chemicals elicit adverse health effects by perturbing nuclear receptor signalling systems. It has been speculated that these compounds may also perturb epigenetic mechanisms and thus contribute to the early origin of adult onset disease. We hypothesised that histone methylation may be a component of the epigenome that is(More)
The early automated systems for detecting plagiarism in student programs employed attribute-counting techniques in their comparisons of programs. It has been claimed that the more recent, automated systems, which encode structural information, are more effective in their detection of plagiarisms than systems based on attribute-counting. To explore the(More)
A system for aligning nucleotide or amino acid biosequences is described. The system, called Neweyes, employs a novel string matching algorithm. Running Karp-Rabin Greedy String Tiling (RKR-GST), which involves tiling one string with matching substrings of a second string. In practice, RKR-GST has a computational complexity that appears close to linear.(More)