Development and/or change of the notion of permanent object and operative causality: empirical evidence in the first year of life

This study examines the notion of permanent object during the first year of life, taking into account the controversy of two approaches about the nature of change: developmental change and cognitive change. Using a longitudinal/cross-sectional design, tasks adapted of the subscale of permanent object and operative causality of the Uzgiris-Hunt Scale (Uzgiris and Hunt, 1975) (Uzgiris & Hunt, 1975) were presented to 110 infants of 0, 3, 6 and 9 months-old, which reside in three cities of Colombia. The results showed three types of strategies: (a) Not resolution; (b) Exploratory and (c) Resolution, which follow different trajectories in children’s performance. This allows affirming that adaptive conquests of the cognitive development stay together with the variety of strategies. Using strategies reveals adjustments and transformations of action programs that consolidate the notion of permanent object not necessarily with age, but with self-regulatory processes. Empirical evidence contributes to the understanding of the relations between the emergence of novelty in the development and performance variability

Family Characterization of Young Experimental Consumers of Psychoactive Substances Seen in the Toxicology Department at Colsubsidio

This investigation characterized families of adolescents experimenting with psychoactive substances (PAS) consumption. Materials and methods: For this purpose, a qualitative study with a hermeneutical emphasis was conducted among a population of adolescents between the ages of 12 and 17 who have experimented with PAS. Semi-structured interviews were conducted with patients and their families employing a flexible protocol of 14 categories. Results: The findings showed low levels of family cohesion and sense of family identity, inconsistency between educational patterns followed by the parents, as well as deficient parental support. Similarly, the findings indicate significant peer influence during the first stages of consumption of illegal substances. In this regard, the findings suggest that more than providing physical satisfaction, consumption represents a form of acquiring prestige and social position while granting a sensation of psychological, emotional and social well-being. Conclusions: Parental influence was also found considerable in regarding the consumption of legal PAS, like alcohol and tobacco. The study identified as a high-priority need to promote and incorporate communication and conflict resolution skills within the family dynamics by means of prevention and monitoring programs. Those skills and programs would be aimed at providing parents of adolescents experimenting with PAS consumption with new educational tools to orientate new raising guidelines so as to respond appropriately to the problems identified in this study.

Informal housing in the XXI century. Characteristics of the informal land and housing supply in Bogota during the first decade of the XXI century

This article characterizes the conditions of the informal land and housing supply during the first decade of the xxi century in Bogota, regarding magnitude and location of the informal urban growth (new occupations in the periphery and informal densification of consolidated areas), housing  conditions in recent occupations and the characteristics of the land market. The situation of the  last decade has been reconstructed based in aerial photography analysis, census data quantification  and data analysis from planning and control public entities. Results suggest that due to the relative  land scarcity in Bogotá, among other aspects, the informal market dynamics have experimented changes compared to previous decades, because the growth in consolidated urban areas becomes  more important than the informal urbanization of the peripheries, but at the same time informality  transcends the municipal perimeter to the neighboring municipalities.