Title:Comparación morfológica y distribución geográfica de las especies Tabellaria fenestrata y Tabellaria flocculosa (Bacillariophyceae) en sistemas lóticos y lénticos de Colombia / Morphological comparison and geographic distribution of the species Tabellaria fenestrata and Tabellaria flocculosa (Bacillariophyceae) in lotic and lentic systems in Colombia
Title:Comparative susceptibility of two Neotropical predators, Eriopis connexa and Chrysoperla externa, to acetamiprid and pyriproxyfen: short and long-term effects after egg exposure
Title:A description of Blatticola ancoracauda (Nematoda, Thelastomatidae) a parasite of cricket (Orthoptera, Gryllidae) with notes of cytogentics from Argentina
Title:El papel de la morfología oocitaria en la determinación de la competencia embrionaria temprana / The role of oocyte morphology in the early embryo competence determination
Title:Desarrollo ovárico en Columba livia (Aves: Columbiformes): análisis morfológico e histológico / Ovarian development in Columba livia (Aves: Columbiformes): morphological and histological analysis
Title:Estudio morfogeométrico del basicráneo de Ursidae (Carnivora, Mammalia) / Geometric morphometric analysis of the basicranium of Ursidae (Carnivora, Mammalia)
Title:Niveles de tirotrofina y anticuerpos antitiroperoxidasa en el primer trimestre de gestación asociados a complicaciones del embarazo en la mujer eutiroidea / Thyrotropin levels and anti-thyroid peroxidase antibodies during first trimester of pregnancy associated with maternal and foetal complications in euthyroid women