Search results for "O5"
showing 10 items of 143 documents
Une analyse exploratoire des disparités régionales dans l'Europe élargie
2005
http://www.regionetdeveloppement.u-3mrs.fr/; National audience; L'objectif de cet article est d'analyser les inégalités régionales dans l'Union Européenne élargie à l'aide de l'Analyse Exploratoire des Données Spatiales appliquée aux PIB par tête des 258 régions de l'Europe des 27 sur la période 1995-2000. Les résultats montrent l'existence d'une forte autocorrélation spatiale globale et locale ainsi qu'une forte hétérogénéité dans la distribution des richesses. Ils montrent également un changement de polarisation, puisque l'élargissement conduit à un schéma de polarisation Nord-Ouest - Est à la place du schéma Nord-Sud traditionnellement mis en évidence dans la littérature. Finalement, cet…
Modeling of differential admittance behaviour of thin amorphous semiconducting film
2012
The understanding of the electronic properties of thin oxide film is an important step toward the understanding of the mechanisms of film dissolution and breakdown as well as for their application in the field of electrolytic capacitors and solar energy conversion. From this point of view the correct location of the characteristic energy levels (flat band potential, Ufb, and conduction (valence) band edge EC (EV)), of a passive film/electrolyte junction is the preliminary task for a deeper understanding of the mechanism of charge transfer at oxide/electrolyte interface. At this aim the most frequently employed method to locate such characteristic energy levels of semiconductor oxide/electro…
Mapping the invasion: spatiotemporal distribution of the Pacific oyster in Scandinavia
2021
Master's thesis in Coastal ecology (BIO501) The Pacific oyster (Magallana/Crassostrea gigas) is an invasive species to Scandinavia, originating on the Pacific coasts of Asia. Introduction to Europe of these oysters was a result of farming initiatives, put in place following declines of the native oyster species (Ostrea edulis). The oysters were introduced to Denmark, Sweden, and Norway in farming trials during the 1970s, however Norwegian and Swedish populations have also been a consequence of larval drift. They are not currently commercially farmed in any of the three countries due to the effects that wild populations have on the areas they invade. To map historical and present distributio…
Growth and convergence in Africa: The impact of spatial effects
2010
The aim of this paper is to study the impact of spatial effects on convergence process in Africa over the period 1975-2000. Taking into account these effects through the methodology of Exploratory Spatial Data Analysis (ESDA) and spatial econometrics, we focus on the geographical dimension of economic convergence of African countries. This allows us to deal with spatial autocorrelation which is a consequence of econometric interdependences due to geographic spillovers. Indeed, countries economic performance hides specific geographical patterns providing information on the importance of location on economic dynamics. Our results prove the existence of convergence process in Africa through a …
Human Capital and Income Inequality: Some Facts and Some Puzzles
2012
Using a broad number of indicators from an updated data set on human capital inequality for 146 countries from 1950 to 2010, this paper documents several facts regarding the evolution of income and human capital inequality. The main findings reveal that, in spite of a large reduction in human capital inequality around the world driven by a decline in the number of illiterates of several hundreds of millions of people, the inequality in the distribution of income has hardly changed. In many regions, the income Gini coefficient in 1960 was very similar to that in 2005. Therefore, improvements in literacy are not a sufficient condition to reduce income inequality, even though they improve life…
CAUSES AND CONSEQUENCES OF THE 2008-2009 INTERNATIONAL FINANCIAL CRISIS
2012
The paper investigates the current crisis and its major consequences in a shifting world. Originated from the USA, the crisis spread in the world and disturbed its power distribution. The emerging countries development of the last two decades illustrates the catching-up process. The findings also confirm the increased role of the Chinese economy today. The Chinese growth in comparison with the USA economic path is a mirror for the future world architecture. The consequences of the international financial crisis are focused on the fact that the developed countries will lose gradually their privileges in the shifting of economic power.
Global Divergence in Growth Regressions
2013
This paper extends the standard growth regression model by adding an assumption that a country follows the global technology frontier either fully or partially. This additional assumption changes significantly the growth regression model and its results in three main ways. First, it shows that although a country converges to its long-run growth path, this path can diverge from the countries at the global frontier. We measure the degree of divergence for each country and find that most indeed diverge from the frontier. Second, we estimate growth dynamics without controlling for additional variables. Third, our new method enables us to disentangle the effects of the explanatory variables on t…
The influence of culture on the economic freedom and the international business
2006
The firms who decide to expand their business in an international environment must modify their management style through international management. Certainly, international management must adapt their on functions to the different framework of the business development. The culture is a cardinally factor, being an essential component in the success equation of multinational companies. The culture, the habits and the attitudes became points of major interests on the global market. Their importance is obvious through numerous "blunders" which find out in international trade and international. For the success of international business the economies must bees free, but the economic freedom is inf…
Photocatalytic Generation of H2 by Photoreforming of Organics in Aqueous Suspension of Nb2o5/C3n4 Composites
2023
Bare and composite materials based on C3N4 and Nb2O5 have been used as photocatalysts for the photoreforming of aqueous solutions of oxygenated compounds. Both Nb2O5 and Nb2O5/C3N4 composites have been prepared by hydrothermal synthesis and all of them were physical-chemically characterized. In this work two different carbon nitride species i.e. graphitic (g-C3N4) or thermo-etched (TE-C3N4) were used both alone or coupled with Nb2O5. The photo-reforming activity has been measured under UV irradiation by using the semiconductors in the presence of Pt as co-catalysts and, in the case of the best material, it was, for the first time, measured and compared also under natural solar irradiation. …
ICT demand behaviour: An international comparison
2009
This study aims to provide some empirical explanations for the gaps in ICT diffusion between industrialized countries, especially European countries vis-à-vis the United States. The panel data cover eleven OECD countries: Austria, Denmark, Finland, France, Germany, Italy, Japan, the Netherlands, Spain, the United Kingdom and the United States. These annual macroeconomic data span the 1981-2005 period.The analysis provides some original results: (i) the impact on ICT diffusion of the level of education and market rigidities has changed over time. The correlation of ICT diffusion, positive with the level of education and negative with market rigidities, increased over time (in absolute terms)…