We report on a multiyear study of student attitudes measured with the Colorado Learning Attitudes about Science Survey in calculus-based introductory physics taught with the Modeling Instruction curriculum. We find that five of six instructors and eight of nine sections using Modeling Instruction showed significantly improved attitudes from pre-to postcourse. Cohen's d effect sizes range from 0.08 to 0.95 for individual instructors. The average effect was d ¼ 0:45, with a 95% confidence interval of (0.26-0.64). These results build on previously published results showing positive shifts in attitudes from Modeling Instruction classes. We interpret these data in light of other published positive attitudinal shifts and explore mechanistic explanations for similarities and differences with other published positive shifts.

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El presente artículo tiene el objetivo de estudiar, mediante un modelo de regresión, cuáles son las variables que influyen de forma significativa en el pilar de la innovación para la competitividad de los países de América Latina. Posteriormente, se hace un análisis de varianza de las variables innovadoras en el grupo de países que forman parte de la Alianza del Pacífico para contrastarlo con el resto de los países de Latinoamérica y encontrar las variables que marcan una diferencia significativa entre ambos. Se concluye que la aplicación de patentes resulta ser un diferenciador de innovación para la competitividad en la Alianza del Pacífico en relación con el resto de Latinoamérica.

El presente artículo se enfoca en el tema de igualdad de género y tiene el objetivo de estudiar, mediante un análisis de varianza (ANOVA), las variables que influyen en la brecha entre hombres y mujeres en los países de la Alianza del Pacífico, para contrastarlo con el resto de América Latina. La fuente de la cual se extrajo la información es el Foro Económico Mundial. A partir de lo anterior, se encontró que solo la variable participación económica de la mujer marca una diferencia estadísticamente significativa en este gremio de países en comparación con el resto de Latinoamérica, aunque también se encontró que el factor de la participación política arroja resultados importantes para analizar. Se concluye que la Alianza del Pacífico debe implementar estrategias para reducir la marcada brecha de género en la dimensión económica y política como una vía para generar ventaja competitiva en el escenario internacional.

This is an on-going study of an integrated first-year engineering course of mathematics and physics using models and modelling instruction. This innovation involves: redesigning the course content, combining teaching strategies, reshaping the classroom setting, and the use of technology. The experimental course was taught at a large private university in northern Mexico. This study analyses the students' final projects of this integrated course. The general comments made by the students were positive and affirmed this as a valuable learning experience. Students noted that the course reduced boundaries between physics and mathematics, helping them to better understand the application and need for the mathematics content.

Background: Quality of life (QoL) has been included as a marker of treatment effectiveness in pediatric patients with chronic diseases. We believe that frequent multidisciplinary interventions and patient education could lead to an improvement in QoL. Aims: Determine the QoL and economic impact of monthly interventions in multidisciplinary treatment. Materials and Methods: The Haemo-QoL questionnaire was applied to patients who attended the hemophilia center of the University Hospital “Dr. José Eleuterio González,” Monterrey, Mexico, at the time of enrollment and 1 year later. Results: Male patients between 4 and 16 years diagnosed with hemophilia were included. The score results presented are based on Haemo-QoL versions that classify patients by their age group: group 1 (4 to 7 y) and group 2 (8 to 12 y). Statistical significant improvement was observed in the overall score (sociodemographic, psychosocial, etc.) after 1 year of follow-up in both groups (P<0.05). Conclusions: Impact on the QoL of patients receiving this approach was favorable. Improvement was observed regardless of severity and in those who were already in prophylaxis, suggesting that this type of approach could be causing the improvement. Results support the application of multidisciplinary treatment as the gold standard, and it should be considered in all centers including those with limited resources.

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