BUSCADOR RECOLECTA

Fractals are a family of shapes formed by irregular and fragmented patterns. They can be classified into two main groups: geometric and algebraic. Whereas the former are characterized by a fixed geometric replacement rule, the latter are defined by a recurrence function in the complex plane. The classical method for visualizing algebraic fractals considers the sequence of complex numbers originated from each point in the complex plane. Thus, each original point is colored depending on whether its generated sequence escapes to infinity. The present work introduces a novel visualization method for algebraic fractals. This method colors each original point by taking into account the complex number with minimum modulus within its generated sequence. The advantages of the novel method are twofold: on the one hand, it preserves the fractal view that the classical method offers of the escape set boundary and, on the other hand, it additionally provides interesting visual details of the prisoner set (the complement of the escape set). The novel method is comparatively evaluated with other classical and non-classical visualization methods of fractals, giving rise to aesthetic views of prisoner sets.

Comparison of whole metagenome amplification competence by new piPolB-based MDA methods and commercial kits using a mini mock-metagenome containing high-GC sequences.

Mini mock metagenome made up ofE. coli, B. subtilis, P. aeruginosa and K. rhizophila genomes.A total of 11 samples were analyzed:

• unamplified metagenome (NA and NA2)
• samples obtained by random-primers MDA (RP-MDA and RP-MDA2)
• PrimPol-MDA
• new MDA with piPolB as only enzyme
• piPolB with a previous DNA alkaline denaturation step (piPolB+D)
• new MDA with piPolB and phi29 DNA polymerases (piMDA and piMDA2)
• and the latter method with a previous denaturation step (piMDA+D and piMDA+D2)