Regional decomposition of CO2 emissions in the world: a cluster analysis

The purpose of this paper is to study the possible differences among countries as CO2 emitters and to examine the underlying causes of these differences. The starting point of the analysis is the Kaya identity, which allows us to break down per capita emissions in four components: an index of carbon intensity, transformation efficiency, energy intensity and social wealth. Through a cluster analysis we have identified five groups of countries with different behavior according to these four factors. One significant finding is that these groups are stable for the period analyzed. This suggests that a study based on these components can characterize quite accurately the polluting behavior of individual countries, that is to say, the classification found in the analysis could be used in other studies which look to study the behavior of countries in terms of CO2 emissions in homogeneous groups. In this sense, it supposes an advance over the traditional regional or rich-poor countries classifications .Cluster analysis, CO2 emissions, geographical emissions, greenhouse effect

Calculadoras Gráficas na Matemática

Alguns dos objectivos gerais do programa de Matemática do Ensino Secundário são: Interpretar fenómenos e resolver problemas recorrendo a funções e seus gráficos; Exprimir o mesmo conceito em diversas formas e linguagens; Analisar situações da vida real, identificando modelos matemáticos que permitam a sua interpretação e resolução; Formular generalizações a partir de experiências, estando em todos eles presente a dimensão gráfica, sendo por isso indispensável o uso da calculadora gráfica

Errance et Renaissance dans le film brésilien "Central do Brasil"

International audienceDans ce film majeur du réalisateur Walter Salles, le déplacement géographique est doublé d'un voyage initiatique

The Attraction of Education: National Stereotypes and Study Destination Choice

This article discusses the relationship between the constructs of image, national stereotypes and attractiveness of higher education systems (HE), analysing the Portuguese case within the context of European Higher Education. The growing importance of academic mobility coupled with the sharp demographic decline, the increased internationalization efforts of higher education institutions (HEI) from around the world and the general increase in global competitiveness has forced the HEI, and their own regions and countries, to an increasingly strategic use of communication tools in an attempt to attract investment, resources and students to maintain their position or, even, to survive. The empirical research was based on the Stereotype Content Model and measured its correlation with the intention of performing higher studies in Portugal. The implications of this study allows us to understand and, as a consequence, design strategies aiming to promote attractiveness of the Portuguese higher education system.info:eu-repo/semantics/publishedVersio

Le roman français et l'histoire du Brésil. Essai sur l'exotisme littéraire.

International audienceCompte-rendu de lecture de Régis TETTAMANZI, Le Roman français et l'histoire du Brésil. Essai sur l'exotisme littéraire, Paris, L'harmattan, 200

"Ao encontro de Chiquinho - fragmentos de uma viagem à ilha de São Nicolau"

Un voyage sur les lieux du roman "Chiquinho", au Cap-Vert. Confrontation entre le passé du roman et le présent du touriste étranger qui parcoure l'île de São Nicolau