Group J Professional Development Presentation

Presentation for Group J of Professional Development

Group J Professional Development Presentation pdf

PDF version of professional development presentation

Preliminary population study of Methylenetetrahydrofolate Reductase (MTHFR) C677T polymorphism determination in a pilot group of students from the University of Rosario

 Introduction: the 5, 10-methylenetetrahydrofolate reductase (MTHFR) is an essential enzyme in folate metabolism; their polymorphisms have been associated with heart disease risk increase, obstetric problems, neural tube defects in fetuses and cancer susceptibility. This gene has a single nucleotide polymorphism, a C-T change at nucleotide 677, which affects significantly its enzymatic activity. Objective: because of the biological importance of this enzyme and the Colombian population genetic heterogeneity characteristic, a study was performed to determine allele and genotype frequencies of MTHFR C677T polymorphism in healthy individuals, taking into account that in Colombia there are only studies that have involved case-control methodology. Methods: we analyzed this polymorphism trough the amplification of the DNA of a 206 students sample population. Additionally, Colombian overall frequencies were calculated, using data from healthy controls reported in other studies. Results: a Hardy-Weinberg disequilibri m was found in the sample tested. For the Colombian data, we found that the global population was in equilibrium. Conclusion: T allele population frequency seems to be under positive selection pressure, which is reflected in the population allele increase, despite its deleterious effect. A Spanish study reported similar results and identified folic acid supplementation on expectant mothers as a probably cause of this change. 

Learning in community : small group leadership for educational change.

Resumen de la autora. Este art??culo pertenece al monogr??fico 'John Elliott: su pensamiento y su influencia'

Behavioral differences in violence: the case of intra-group differences of paramilitaries and guerrillas in Colombia

In most studies on civil wars, determinants of conflict have been hitherto explored assuming that actors involved were either unitary or stable. However, if this intra-group homogeneity assumption does not hold, empirical econometric estimates may be biased. We use Fixed Effects Finite Mixture Model (FE-FMM) approach to address this issue that provides a representation of heterogeneity when data originate from different latent classes and the affiliation is unknown. It allows to identify sub-populations within a population as well as the determinants of their behaviors. By combining various data sources for the period 2000-2005, we apply this methodology to the Colombian conflict. Our results highlight a behavioral heterogeneity in guerrilla’s armed groups and their distinct economic correlates. By contrast paramilitaries behave as a rather homogenous group.

Efectos a largo plazo del tratamiento de un adolescente con fobia social generalizada mediante el cognitive-behavioral group therapy for adolescents (CBGT-A).

Contiene tablas. Resumen tomado de la revista

Promoting effective group work in the primary classroom : a handbook for teachers and practitioners.

Recurso que muestra a los profesores cómo crear un aula comprensiva y solidaria mediante el desarrollo de habilidades sociales, comunicativas y de trabajo de todos los alumnos. Anima a los niños y a sus maestros a desarrollar relaciones de apoyo para facilitar el rendimiento académico, el comportamiento social positivo y la motivación. También da consejos prácticos para la creación y funcionamiento de grupos de trabajo eficaces. El manual se compone de dos partes; la primera proporciona recomendaciones e información acerca de cómo pueden ser utilizados correctamente, y aplicados en las aulas de la escuela primaria, los grupos de trabajo; la segunda proporciona ejemplos de un programa de desarrollo de las actividades. Estas actividades están organizadas en una secuencia que pretende construir habilidades de trabajo de grupo, donde los niños pasan más tiempo en la tarea y son menos dependientes del profesor.