Universitas Scientiarum: (ISSN: 0122-7483; E-ISSN: 2027-1352) is a multidisciplinary, Open-Acces, peer-reviewed, first-online journal devoted to the promotion of the recent progress in all fields of exact and natural sciences. The objective of Universitas Scientiarum is to publish timely (three times per year: April, August, and December), useful and informative results that will be of value to a general audience. All articles published in Universitas Scientiarum have undergone rigorous peer review by at least two international anonymous referees. Universitas Scientiarum was founded in 1987 by the Faculty of Sciences of the Pontificia Universidad Javeriana, Bogotá D.C., Colombia.