The article presents the results of a research Project aimed at making a characterization of Cognitive Styles (CS) in the dimension of field sensibility-independence, of a sample of 126 Industrial Design students of the Jorge Tadeo Lozano University (JTLU) in Colombia, 90,47% of them come from the central Andean region. The guiding approach of our project is the Theory of Psychological Differen...

– 2 – We present distance determinations for two Local Group dwarf spheroidal galaxies, Carina and Fornax, based on the near-infrared magnitudes of the tip of the red giant branch (TRGB). For Carina we derive true distance moduli of 20.09 and 20.13 mag in the J and K bands, respectively, while for Fornax the same distance modulus of 20.84 mag was derived in both filters. The statistical errors ...

We have obtained mosaic images of NGC 3109 in the V and I bands on 74 nights, spanning approximately one year. From these data, we have conducted an extensive search for Cepheid variables over the entire field of the galaxy, resulting in the discovery of 113 variables with periods ranging from 3.4 to 31.4 days. In this sample, 76 Cepheids, including many long-period variables, were not known be...

BACKGROUND We report here the isolation and characterization of a new compound Ailanthus excelsa chloroform extract-1 (AECHL-1) (C(29)H(36)O(10); molecular weight 543.8) from the root bark of Ailanthus excelsa Roxb. The compound possesses anti-cancer activity against a variety of cancer cell lines of different origin. PRINCIPAL FINDINGS AECHL-1 treatment for 12 to 48 hr inhibited cell prolife...