Preescolar na casa

RESUMEN

Preescolar Na Casa es un programa educativo dirigido a niños de 6 años de la Galicia rural en situación de desventaja con respecto al niño escolarizado. El programa es llevado a cabo por los padres en sus casas, con la ayuda de una orientación pedagógica y un material didáctico adecuado. Se hace una breve historia de como surgió esta experiencia y se describen las actividades del programa. A pesar de las muchas limitaciones (ausencia de socialización del niño, poca intensidad del trabajo, poco interés y deformación pedagógica de algunos padres) los niños que siguieron el programa en continuidad aprovecharon los aprendizajes y lograron una mayor atencion de sus padres, mejorando así la relación.     

Using comparative genomics for inquiry-based learning to dissect virulence of Escherichia coli O157:H7 and Yersinia pestis

Genomics and bioinformatics are topics of increasing interest in undergraduate biological science curricula. Many existing exercises focus on gene annotation and analysis of a single genome. In this paper, we present two educational modules designed to enable students to learn and apply fundamental concepts in comparative genomics using examples related to bacterial pathogenesis. Students first examine alignments of genomes of Escherichia coli O157:H7 strains isolated from three food-poisoning outbreaks using the multiple-genome alignment tool Mauve. Students investigate conservation of virulence factors using the Mauve viewer and by browsing annotations available at the A Systematic Annotation Package for Community Analysis of Genomes database. In the second module, students use an alignment of five Yersinia pestis genomes to analyze single-nucleotide polymorphisms of three genes to classify strains into biovar groups. Students are then given sequences of bacterial DNA amplified from the teeth of corpses from the first and second pandemics of the bubonic plague and asked to classify these new samples. Learning-assessment results reveal student improvement in self-efficacy and content knowledge, as well as students' ability to use BLAST to identify genomic islands and conduct analyses of virulence factors from E. coli O157:H7 or Y. pestis. Each of these educational modules offers educators new ready-to-implement resources for integrating comparative genomic topics into their curricula.     

The BlueJ System and its Pedagogy

Many teachers experience serious problems when teaching object-orientation to beginners or professionals. Many of these problems could be overcome or reduced through the use of more appropriate tools. In this paper, we introduce BlueJ, an integrated development environment designed for teaching object-orientation, and discuss how the use of this tool can change the approach to teaching.     

Child abuse in South Africa: an examination of how child abuse and neglect are defined

OBJECTIVE: The purpose of this study was to explore which of 17 categories of child maltreatment South Africans evaluated as most serious and to determine if those working with abuse and neglect evaluated abuse and neglect differently from those who did not. METHOD: A revised version of Giovannoni and Becerra's [Giovannoni, J., & Becerra, R. (1979). Defining child abuse. New York: The Free Press] questionnaire exploring the definition of abuse and neglect was completed by 181 residents of Cape Town, South Africa. The new form had 17 categories of child maltreatment, including 4 categories of societal abuse. Respondents were social workers (n = 57), human service workers (n = 42), laypersons (n = 65), and members of the child protection unit of the South African Police (n = 18). ANOVA was used to compare the groups' responses. When significant differences among groups were found, a Bonferroni post hoc test was run to determine differences between groups. RESULTS: The respondents ranked sexual abuse and child prostitution as most serious and housing and child labor as least serious of the 17 categories. There was a significant difference (p < or = .01) between groups on nine categories. When post hoc tests were run, differences were found for eight categories with laypersons generally evaluating categories as significantly more serious than social workers. CONCLUSIONS: Reasons for the order of the rankings are discussed, but concern remains that differences in the evaluation of child maltreatment will lead to difficulty in implementing a protocol for identifying and responding to incidents of abuse and neglect.