Title:A quantitative PCR approach for quantification of functional genes involved in the degradation of polycyclic aromatic hydrocarbons in contaminated soils
Title:Using Tuna (opuntia ficus-indica) as natural coagulant in the clarification of the crudes waters / Utilización de Tuna (opuntia ficus-indica) como coagulante natural en la clarificación de aguas crudas