1,138 research outputs found
Public governance as a key determinant of FDI : a comparative analysis of sub-saharan Africa and south-east Asia host countries
The World Bank (2000), in its report on Quality of Growth emphasises the importance of public governance as the keystone of a country's development. Studies examining determinants of foreign direct investment (FDI) are also increasingly taking account of such fundamentals as institutional and political factors. Thus, rule of law, bureaucratic corruption, educational attainment or quality of physical infrastructure are now included in econometric analyses next to more common variables such as market size, labour costs or trade openness. In other words, good governance appears to be a key condition for attracting FDI. For instance, Lehmann (1999), shows that a country like India could increase its share of US affiliates' physical investment by 50% if it were to eliminate all political uncertainty. For a developing country, the stakes for improving its public governance are high. Beyond an increase in its growth rate, a favourable business climate is likely to attract more FDI and enhance their alleged spillovers. More FDI means more financial resources for the host country, whereas it is likely that the technological intensity of these investments and the transfer of foreign know-how to domestic firms will largely depend on the quality of public governance. This article has three goals. First, to clarify why public governance is likely to influence FDI inflows. Second, to propose a new evaluation of public governance through the construction of quantitative, relatively objective, easily replicable and sample-specific indicators. The public governance of two geographic zones will be assessed through this method: Sub-Saharan Africa (SSA) and South-East Asia (SEA). As shown in table 1.1, the former attracts much less FDI than the latter. Third, to test econometrically whether public governance explains the diverging abilities of SSA and SEA to attract FDI
Monolithic Carbide-Derived Carbon Films for Micro-Supercapacitors
Microbatteries with dimensions of tens to hundreds of micrometers that are produced by
common microfabrication techniques are poised to provide integration of power sources onto
electronic devices, but they still suffer from poor cycle lifetime, as well as power and temperature
range of operation issues that are alleviated with the use of supercapacitors. There have been a
few reports on thin-film and other micro-supercapacitors, but they are either too thin to provide
sufficient energy or the technology is not scalable. By etching supercapacitor electrodes into
conductive titanium carbide substrates, we demonstrate that monolithic carbon films lead to a
volumetric capacity exceeding that of micro- and macroscale supercapacitors reported thus far,
by a factor of 2. This study also provides the framework for integration of high-performance
micro-supercapacitors onto a variety of devices
Monolithic Carbide-Derived Carbon Films for Micro-Supercapacitors
Microbatteries with dimensions of tens to hundreds of micrometers that are produced by common microfabrication techniques are poised to provide integration of power sources onto electronic devices, but they still suffer from poor cycle lifetime, as well as power and temperature range of operation issues that are alleviated with the use of supercapacitors. There have been a few reports on thin-film and other micro-supercapacitors, but they are either too thin to provide sufficient energy or the technology is not scalable. By etching supercapacitor electrodes into conductive titanium carbide substrates, we demonstrate that monolithic carbon films lead to a volumetric capacity exceeding that of micro- and macroscale supercapacitors reported thus far, by a factor of 2. This study also provides the framework for integration of high-performance micro-supercapacitors onto a variety of devices
Factors Influencing the Evolution of Vocational Teachersâ Beliefs and Practices Related to Classroom Management during Teacher Education
Two studies were conducted to investigate the evolution of 71 Swiss vocational teachersâ classroom management as a result of the inputs of a teacher education program, and to identify the factors that encouraged or impeded teacher change. Study 1 consisted of a longitudinal survey, and Study 2 of interviews. Longitudinal analyses were performed using a multilevel approach. This mixed-method study revealed that vocational teachersâ classroom management evolved towards the beliefs and practices encouraged by the teacher education program. Years of prior teaching experience and motivations for choosing teaching were found to moderate teachersâ evolutions. Moreover, influential people, providing alternative strategies for teachers to try in their classrooms, and questioning teaching practices, were found to influence teachersâ change. Finally, this study emphasizes the importance of the congruence between teacher education and the teaching context as well as the influence of school norms on teacher change
Graph space: using both geometric and probabilistic structure to evaluate statistical graph models
Statistical graph models aim at modeling graphs as random realization among a
set of possible graphs. One issue is to evaluate whether or not a graph is
likely to have been generated by one particular model. In this paper we
introduce the edit distance expected value (EDEV) and compare it with other
methods such as entropy and distance to the barycenter. We show that contrary
to them, EDEV is able to distinguish between graphs that have a typical
structure with respect to a model, and those that do not. Finally we introduce
a statistical hypothesis testing methodology based on this distance to evaluate
the relevance of a candidate model with respect to an observed graph
Variations in energy storage metabolism discriminate fresh and brackish/saltwater ecotypes in American glass eels
International audienceRecently, different ecotypes characterized by their migration form, have been genetically documented in the American eel, Anguilla rostrata. The aim of this study was to verify if energy status and differential abilities in mobilizing energy reserves could discriminate freshwater and brackish/saltwater ecotypes. To do so, analyses were done on glass eels at recruitment according to location of capture, date and salinity preference using eco-physiological and molecular tools. Salinity preference did not differ between ecotypes. Instead, we observed spatial and temporal variations adding to the body of evidence of genetic and environmental controls in the differentiation of ecotypes. Compared to the brackish/saltwater ecotype, the freshwater ecotype was larger and more pigmented, had 73.8 % lesser triacylglycerol content and 67,7 % higher glycogen content, and overexpressed 7.65 and 3.25 times respectively the transcripts of bile salt activated and triacylglycerol lipases. No variation in transcripts of glycogen phosphorylase, leptin and ghrelin was observed between ecotypes. For both ecotypes, level of pigmentation was higher and energetic reserves were lesser in glass eels arriving two weeks later. Our results suggest the existence of differential regulation mechanisms relative to energy metabolism between ecotypes and allow us to propose a new model of the physiological mechanisms underlying the recruitment of freshwater and brackish/saltwater ecotype in American glass eel. This new biological information contributes to the building knowledge on the distribution of ecotypes and on the internal factors involved in glass eel migration regulation, giving new indications to improve conservation measure for this species declared âthreatenedâ in Canada
Electrophoretic impregnation of porous anodic aluminum oxide film by silica nanoparticles
In this paper, it is proposed to study the deposition of nanoparticles by electrophoretic deposition (EPD) inside a porous anodic aluminum oxide film. Despite the presence of a highly resistive barrier layer at the metal-anodic film interface, porous anodic films on AA 1050A were successfully filled by 16-nm, surface modified silica particles. During this study it was shown that both the colloidal suspension conductivity and the applied electric field drive the penetration into the porous film. FEG-SEM observations showed that large (130-nm diameter), linear pores of 10 ÎŒm in length can be completely filled in 1 min. These results attest that porous anodic films can be efficiently filled with nanoparticles by EPD despite the presence of the barrier layer
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