Search results for "RAV"
showing 10 items of 5866 documents
Do nonreciprocal preferential trade agreements increase beneficiaries' exports?
2014
Abstract This paper investigates whether and to what extent nonreciprocal preferential trade agreements (NRPTAs) have increased developing countries' exports to richer countries. Using recent developments in the econometric analysis of the gravity equation over the period 1960–2008, we find robust evidence that, on the whole, NRPTAs and the Generalized System of Preferences have had an economically significant effect on exports from developing countries. However, the estimation of catch-all dummies masks heterogeneous results for the individual programs.
The impact of embassies and consulates on tourism
2007
Abstract This paper estimates the effect of embassies and consulates on tourist flows from the G-7 countries. The results indicate that embassies and consulates have a positive and significant effect on tourism that ranges between 15% and 30% depending on the estimation technique. Moreover, the impact is larger for the sample of developing countries. The disaggregated analysis shows that, after controlling for both origin and destination fixed effects, a significant impact is found in the seven origin countries.
Otherness and common world : the ethical subject in instituted aid
2021
The conception of ethics in the sector of assistance to the most deprived and particularly vulnerable people is modelled on medical ethics. It is first and foremost a professional code of ethics developed for social workers. It thus obscures the ethical dimension of people who are marked by differences related to disabilities and precariousness and are in a situation of being helped. For them, a possible belonging to the common world must go through an integration of their own way of being ethical. Thus, strengthening the inclusive aim currently at work in the social assistance sector, must go through a work of redefinition of the ethics of aid in order to take into account the specificity …
Characterization of ethylene oxide/tert-octylphenol condensates by ultraviolet and infrared spectrometry
1986
Abstract The average degree of condensation of ethylene oxide/tert-octylphenol condensate surfactants can be estimated rapidly by u.v. and i.r. spectrometry. The u.v. method is based on evaluating the specific absorptivity, a , at 275 nm in aqueous ethanol (60:40 v/v), and inserting this value in equations obtained from previously characterized samples, relating a to the average properties to be determined. Infrared spectrometry is applied similarly; the average properties to be determined are related to the ratio between the band heights at 960 and 840 cm −1 . The relative standard deviations ( n = 10) obtained for a sample of Triton X-100 were 2% by u.v. spectrometry, and 3% by i.r. spect…
The use of mathematical models in the characterization of ethylene oxide condensate Surfactants by infrared and ultraviolet spectroscopy
1986
A topological treatment of the surfactant molecules (DARC system) and a group contribution model were applied to study the correlation between structures of ethylene oxide condensates with nonylsphenol and tert-octylphenol and their spectral characteristics such as extinction coefficient of the molecular absortion band. Using the experimental values of the spectral characteristics of an unknown smaple of an ethylene oxide condensate surfactant and the information parameters, previously determined by the mathematical treatment of a key population, it is possible to obtain their average condensation degree.
Novel mechanism for the radiation-induced bystander effect: nitric oxide and ethylene determine the response in sponge cells.
2006
Until now the bystander effect had only been described in vertebrates. In the present study the existence of this effect has been demonstrated for the phylogenetically oldest metazoan phylum, the Porifera. We used the demosponge Suberites domuncula for the experiments in the two-chamber-system. The lower dish contained irradiated "donor" cells (single cells) and the upper dish the primmorphs ("recipient" primmorphs). The "donor" cells were treated with UV-B light (40 mJ/cm2) and 100 microM hydrogen peroxide (H2O2), factors that exist also in the natural marine aquatic environment of sponges; these factors caused a high level of DNA strand breaks followed by a reduced viability of the cells.…
Des traces et des hommes : projet interdisciplinaire pour interpréter les comportements techno-économiques des Néandertaliens
2009
Cette contribution expose les problematiques du PCR « Des Traces et des Hommes », un projet de recherche interdisciplinaire sur les modalites d’acquisition et de traitement des matieres vegetales et animales au Paleolithique moyen en Europe occidentale. Elle presente brievement les differentes experimentations effectuees entre 2007 et 2009 et les resultats preliminaires obtenus dans chacun des themes developpes.
An Evaluation of the European and Japanese Higher Education by the Labour Market
2003
International audience
L’évolution récente de l’exposition aux risques psychosociaux en Europe
2010
National audience
La violence dans les grèves ouvrières en France au XXe siècle
2016
International audience; ...