This article reviews local, national and international research on the changes that have affected the contemporary family structure and have contributed to new types of family. In this case, interest has centered in know the conclusions of the researchers on single-parent families with teenagers because they have found differences in the outcomes. Some researchers point out that this type of family place the children at risk for substance abuse, crime, etc., while others say that cannot be generalized to all single- parent families. So it is important to study the role of the father leading the family, the role exerted to promote the psychological development of children. Thus we wish to study in single-parent families that are in the life stage of adolescence, its dynamics, especially limits, rules and interactional communication as aspects that organize coexistence favoring the development of its members especially teenagers in the vital task of forging their identity.

  Para evaluar los efectos del café cafeinado (150mg/130 ml) en la memoria inme­diata y en la planificación visomotora en estudiantes universitarios, se utilizó una muestra de 109 estudiantes, de los cuales 54 conformaban el grupo de café descafeinado (control) y 55, el de café cafeinado. El diseño fue experimental pretest-postest, con grupo control. Se evaluó la memoria inmediata, los aciertos, los errores de secuenciación, de atravesamientos y totales, así como la velocidad y la precisión mediante una prueba de planificación visomotora (TESEN). Luego, aleatoriamente y mediante el método doble-ciego, se les dio a beber a los participantes 130ml de café sin cafeína/con cafeína, (grupo control y experimental, respectivamente); después de 30 minutos, se evaluaron los mismos índices con diferentes pruebas. Los datos se analizaron mediante ANOVA de medidas repetidas, con un alpha= 0.05. El café cafeinado (150mg/130 ml) incrementó la memoria inmediata y disminuyó los errores de atravesamiento, lo que muestra leves efectos ergogénicos del café con cafeína en los estudiantes de ambos sexos.

This article was based on a mixed methods research where the predominant emphasis was placed on the description of the results, with quantitative characteristics obtained through the applied questionnaire. The descriptive design made it possible to observe and reflect on the pedagogical mediations that occur in family contexts with regard to the reception and consumption of products and services offered by television, the internet, and online social networks. The participants were university students (16 and 24-year-old) who responded the questionnaire and kept an observational diary. A triangulation of the results of both the participants’ observations and the questionnaires was used. We found that there is a type of family mediation with regard to television contents. However, no indicator was found to clarify if the families are mediating the contents and information circulating on the internet. This opens up an opportunity to propose family communication strategies that allow for a more direct influence of the parents/caregivers or companions on these contents, taking into account the individual and family life cycles.