Transcriptional regulation, a multiple-step process, is still poorly understood in the important pig pathogen Mycoplasma hyopneumoniae. Basic motifs like promoters and terminators have already been described, but no other cis-regulatory elements have been found. DNA repeat sequences have been shown to be an interesting potential source of cis-regulatory elements. In this work, a genome-wide sea...

We developed a recurrence relation that counts the number of tandem duplication trees (either rooted or unrooted) that are consistent with a set of n tandemly repeated sequences generated under the standard unequal recombination (or crossover) model of tandem duplications. The number of rooted duplication trees is exactly twice the number of unrooted trees, which means that on average only two ...

A regular variable holds, at any one time, a single value, be it numeric or otherwise. In contrast, a random variable (RV) holds a distribution over values, be they numeric or otherwise. For example, the outcome of a future toss of a fair coin can be captured by a random variable X holding the following distribution: ’HEAD’ with probability 0.5, and ’TAIL’ with probability 0.5 . We will use upp...

In this study, we are building a prototype of a machine-learning system using an inductive supervised approach to predict the logistical performance of a company. Focus lies on the learning phase, the handling of different types of data, the creation of new concepts in order to provide better measurable information. In this system, numeric financial data are combined with categorical data creat...

Citrus greening (huanglongbing) is the most destructive citrus disease worldwide. The disease is associated with three species of 'Candidatus Liberibacter' among which 'Ca. Liberibacter asiaticus' has the widest distribution. 'Ca. L. asiaticus' is commonly transmitted by a phloem-feeding insect vector, the Asian citrus psyllid Diaphorina citri. A previous study showed that isolates of 'Ca. L. a...