Marcelo Freire - Academia.edu (original) (raw)
Papers by Marcelo Freire
Journal of Radio & Audio Media, 2011
This article stems from the supposition that a process of convergence affects habits in the uses ... more This article stems from the supposition that a process of convergence affects habits in the uses of radiophonic content by the average Brazilian adolescent. With the intention of proving this argument and of obtaining data indicative of juvenile behavior in relation to radio, students between the ages of 15 and 19 from the second year in public secondary schools were surveyed. The students were drawn from the four main urban centers in Brazil (Belo Horizonte, Porto Alegre, Rio de Janeiro, and São Paulo), where the industry of radio broadcasting is more developed. As a control group, a sample similar to the city of Frederico Westphalen, in the interior of the state of Rio Grande do Sul was used. In methodological terms, the option used was an open-ended questionnaire, allowing for a qualitative approach, as well as the gathering of basic quantitative data. The results indicate a relative separation between the teenagers researched and the context.
Journal of Radio & Audio Media, 2011
This article stems from the supposition that a process of convergence affects habits in the uses ... more This article stems from the supposition that a process of convergence affects habits in the uses of radiophonic content by the average Brazilian adolescent. With the intention of proving this argument and of obtaining data indicative of juvenile behavior in relation to radio, students between the ages of 15 and 19 from the second year in public secondary schools were surveyed. The students were drawn from the four main urban centers in Brazil (Belo Horizonte, Porto Alegre, Rio de Janeiro, and São Paulo), where the industry of radio broadcasting is more developed. As a control group, a sample similar to the city of Frederico Westphalen, in the interior of the state of Rio Grande do Sul was used. In methodological terms, the option used was an open-ended questionnaire, allowing for a qualitative approach, as well as the gathering of basic quantitative data. The results indicate a relative separation between the teenagers researched and the context.
Effects of dark rearing on dendritic spines in layer iv of the mouse visual cortex. A quantitative electrol microscopical study
The effect of visual deprivation on dendritic spines in the visual cortex layer IV of 19 days old... more The effect of visual deprivation on dendritic spines in the visual cortex layer IV of 19 days old mice was studied with the electron microscopy. From the serial ultrathin sections of the selected dendrites bearing spines the author has calculated the volume and surface area of dendritic spines, and also the surface area of their synaptic zones. Employing statistical methods he has demonstrated that visual deprivation produced a retarded development of some dendritic spines in dark reared mice. The fact that the smallest dendritic spines cannot be seen with the light microscope while the number of such small spines is larger in the dark reared mice can well explain the apparent reduction in the number of dendritic spines in deprived animals studied in Golgi impregnated material.
Rev. GERENCIAIS -Professor, mesmo como figura conhecida do público especializado em economia e ge... more Rev. GERENCIAIS -Professor, mesmo como figura conhecida do público especializado em economia e gestão, por seus livros, artigos e militância política, é certo que todos gostariam de conhecer sua trajetória profissional, acadêmica e política. Além disso, apontar as relações entre vida e obra sempre pode trazer vitalidade e exemplaridade aos temas tratados. O Senhor poderia nos brindar com um breve sumário autobiográfico?
Journal of Radio & Audio Media, 2011
This article stems from the supposition that a process of convergence affects habits in the uses ... more This article stems from the supposition that a process of convergence affects habits in the uses of radiophonic content by the average Brazilian adolescent. With the intention of proving this argument and of obtaining data indicative of juvenile behavior in relation to radio, students between the ages of 15 and 19 from the second year in public secondary schools were surveyed. The students were drawn from the four main urban centers in Brazil (Belo Horizonte, Porto Alegre, Rio de Janeiro, and São Paulo), where the industry of radio broadcasting is more developed. As a control group, a sample similar to the city of Frederico Westphalen, in the interior of the state of Rio Grande do Sul was used. In methodological terms, the option used was an open-ended questionnaire, allowing for a qualitative approach, as well as the gathering of basic quantitative data. The results indicate a relative separation between the teenagers researched and the context.
Journal of Radio & Audio Media, 2011
This article stems from the supposition that a process of convergence affects habits in the uses ... more This article stems from the supposition that a process of convergence affects habits in the uses of radiophonic content by the average Brazilian adolescent. With the intention of proving this argument and of obtaining data indicative of juvenile behavior in relation to radio, students between the ages of 15 and 19 from the second year in public secondary schools were surveyed. The students were drawn from the four main urban centers in Brazil (Belo Horizonte, Porto Alegre, Rio de Janeiro, and São Paulo), where the industry of radio broadcasting is more developed. As a control group, a sample similar to the city of Frederico Westphalen, in the interior of the state of Rio Grande do Sul was used. In methodological terms, the option used was an open-ended questionnaire, allowing for a qualitative approach, as well as the gathering of basic quantitative data. The results indicate a relative separation between the teenagers researched and the context.
Effects of dark rearing on dendritic spines in layer iv of the mouse visual cortex. A quantitative electrol microscopical study
The effect of visual deprivation on dendritic spines in the visual cortex layer IV of 19 days old... more The effect of visual deprivation on dendritic spines in the visual cortex layer IV of 19 days old mice was studied with the electron microscopy. From the serial ultrathin sections of the selected dendrites bearing spines the author has calculated the volume and surface area of dendritic spines, and also the surface area of their synaptic zones. Employing statistical methods he has demonstrated that visual deprivation produced a retarded development of some dendritic spines in dark reared mice. The fact that the smallest dendritic spines cannot be seen with the light microscope while the number of such small spines is larger in the dark reared mice can well explain the apparent reduction in the number of dendritic spines in deprived animals studied in Golgi impregnated material.
Rev. GERENCIAIS -Professor, mesmo como figura conhecida do público especializado em economia e ge... more Rev. GERENCIAIS -Professor, mesmo como figura conhecida do público especializado em economia e gestão, por seus livros, artigos e militância política, é certo que todos gostariam de conhecer sua trajetória profissional, acadêmica e política. Além disso, apontar as relações entre vida e obra sempre pode trazer vitalidade e exemplaridade aos temas tratados. O Senhor poderia nos brindar com um breve sumário autobiográfico?