Uso de alcohol y tabaco y variables cognitivo-motivacionales en el ámbito escolar: efectos sobre el rendimiento académico en adolescentes españoles

El objetivo de este estudio fue analizar: (a) la relación entre el consumo de tabaco y alcohol y el rendimiento académico y (b) la capacidad predictiva de los factores psicoeducativos y el abuso de alcohol y tabaco sobre el rendimiento académico en una muestra de 352 adolescentes españoles de 2º a 4º de Educación Secundaria Obligatoria (ESO). Para analizar las variables cognitivo-motivacionales se utilizaron el Self-Description Questionnaire-II, la Sydney Attribution Scale y el Achievement Goal Tendencies Questionnaire. El consumo abusivo de alcohol y tabaco, el sexo y la repetición de curso fueron también evaluados utilizando medidas autoinformadas. El rendimiento académico fue evaluado a partir de los registros escolares. Se utilizaron análisis de frecuencias y regresión logística para analizar los datos. Los análisis de frecuencias revelaron que los estudiantes que abusan del tabaco y el alcohol presentan un rendimiento académico más pobre. Los análisis de regresión logística destacaron que los comportamientos saludables así como las variables educativas y cognitivo-motivacionales ejercieron un efecto predictivo diferente sobre el rendimiento académico dependiendo del área académica analizada. Estos resultados señalan que para mejorar el rendimiento académico en la adolescencia se han de tener en consideración no sólo variables académicas sino también variables relacionadas con la salud.

Catalytic effect of MCM-41 in the pyrolysis of tobacco and several substances used as additives in the preparation of commercial cigarettes

Comunicación presentada en forma de póster en el "12th Mediterranean Congress of Chemical Engineering", Barcelona (Spain), November 15-18, 2011.

TGA/FTIR study of the MCM-41-catalytic pyrolysis of tobacco and tobacco–glycerol mixtures

In this work, the catalytic effect of MCM-41 on the qualitative composition of the gases evolved in the pyrolysis of glycerol, tobacco and tobacco–glycerol mixtures has been studied by TGA/FTIR. The results obtained reflect that the amount of volatile products obtained from tobacco or from tobacco containing mixtures is noticeably decreased if the catalyst is used as a tobacco additive. The addition of the catalyst also produces noticeable changes in the composition of the gases obtained at each temperature. Such changes are more significant in the case of the pyrolysis of the tobacco–glycerol–mixture than in the pyrolysis of tobacco. The evolution patterns for different types of compounds reveal that the catalyst contributes to a noticeable decrease of the yields of methane, CO, CO2 and carbonylic compounds, which could be interesting from the point of view of the use of MCM-41 as a tobacco additive in order to reduce tobacco smoke toxicity.

Monitoring and Prevention the Smart Cities

Nowadays, the intensive use of Technology Information (TI) provide solutions to problems of the high population density, energy conservation and cities management. This produces a newest concept of the city, Smart City. But the inclusion of TI in the city brings associated new problems, specifically the generation of electromagnetic fields from the available and new technological infrastructures installed in the city that did not exist before. This new scenario produces a negative effect on a particular group of the society, as are the group of persons with electromagnetic hypersensitivity pathology. In this work we propose a system that would allow you to detect and prevent the continuous exposure to such electromagnetic fields, without the need to include more devices or infrastructure which would only worsen these effects. Through the use of the architecture itself and Smart City services, it is possible to infer the necessary knowledge to know the situation of the EMF radiation and thus allow users to avoid the areas of greatest conflict. This knowledge, not only allows us to get EMF current map of the city, but also allows you to generate predictions and detect future risk situations.

Smart Sentinel: Monitoring and Prevention System in the Smart Cities

Today, faced with the constant rise of the Smart cities around the world, there is an exponential increase of the use and deployment of information technologies in the cities. The intensive use of Information Technology (IT) in these ecosystems facilitates and improves the quality of life of citizens, but in these digital communities coexist individuals whose health is affected developing or increasing diseases such as electromagnetic hypersensitivity. In this paper we present a monitoring, detection and prevention system to help this group, through which it is reported the rates of electromagnetic radiation in certain areas, based on the information that the own Smart City gives us. This work provides a perfect platform for the generation of predictive models for detection of future states of risk for humans.