Search results for "Nantes"
showing 10 items of 96 documents
High-resolution infrared spectroscopy of the CH2 = CD2 molecule
2018
In this thesis we have considered spectra of the CH2=CD2 molecule. In the experimental part we recorded high-resolution (~ 0.0025 cm-1) infrared spectra and made full assignment of the recorded transitions. We were able to assign for the first time a lot of transitions to the weak combinations υ4+υ10, υ4+υ7 and 2υ10 overtone; forbidden due to the symmetry υ4, υ7+υ10, υ8+υ10; «hot» υ7+υ10–υ10 and υ8+υ10–υ10 bands. More than 7000 previously unknown transitions were assigned to the fundamental bands υ2, υ3, υ6, υ7, υ8, υ10, υ12 and 2υ7 overtone. On the base of operator perturbation theory and the symmetry properties of the studied molecule, we constructed an effective Hamiltonian and then fitt…
Estudio del biodeterioro en resinas alquídicas usadas como aglutinante en pinturas modernas mediante espectroscopía FTIR y pirólisis-cromatografía de…
2008
Evaluation of the alteration produced by microbiological attack on alkyd resins has been carried out by FTIR spectroscopy and Pyrolysis-Gas Chromatography/Mass Spectrometry (Py-GC/MS). The latter included the online derivatisation of alkyd resins using hexamethyldisilazane during pyrolysis. Specimens consisting of thin films of resins formed on glass slides were used. Analyses performed on the specimens in which different genera of bacteria and fungi were inoculated and allowed to grow, indicate that the attack of microorganisms encourages the scissioning of the polymeric resins and the appearance of short-chain fatty acids. IR bands ascribed to carboxylic acids appearing in samples from in…
Peleas de gallos
2005
La derechización del mundo / 3
2007
Le recours au dialogue avec les parties prenantes dans l'exercice de la responsabilité sociale des entreprises (RSE) : proposition d'une typologie
2021
Since Freeman's work (1984), dialogue with stakeholders has become a central theme in the field of Corporate Social Responsibility (CSR) (Bonnafous-Boucher & Pesqueux 2006; Brown & Dillard 2015; Brown et al. 2020).This dialogue is strongly encouraged by international standards (ISO 26000, GRI, IIRC, AA1000SES, OCDE Principles), which describe it as a tool to inform the decisions of organizations and to allow stakeholders to make their views heard.While the concept of dialogue is omnipresent in the literature, the use of dialogue as a management device is little questioned and documented in scientific studies. How is the dialogue organized by companies? What are the roles of stakeholders? In…
Incidence of Stakeholders in the corporate social responsibility of micro, small and medium-sized enterprises of Santa Marta
2018
Abstract This article analyses the perception and application of corporate social responsibility (CSR) practices in a sample of 499 micro, small and medium enterprises (MSMEs) in the city of Santa Marta (Colombia) following the theory of Stakeholders. Specifically, the interdependence technique of exploratory factor analysis was used to determine the most influential Stakeholders in the execution of CSR practices. It was found that Stakeholders related to the value chain, the environment and corporate management favour social responsibility actions in local MSMEs. In contrast, community and government have less influence on the development of social responsibility practices in MSMEs. Additi…
L'histoire des Martyrs (1554-1619) de Jean Crespin : un témoignage du légalisme juridique de la minorité protestante
2020
Dès les débuts de la Réforme française, la justice s’est imposée comme un obstacle dans la mesure où les évangéliques furent très tôt inquiétés par les autorités. Entre 1525 et 1564, 422 hérétiques sont condamnés et effectivement exécutés sur le bûcher, soit un septième du total européen (près de 3 000 exécutés). Puisque le taux d’exécution oscille entre 5 et 10 % des poursuivis, on peut estimer que près de 5 000 Français ont été devant les tribunaux pour des opinions hétérodoxes. Malgré la d...
Evaluación de contaminantes microbianos en muestras de cannabis incautadas en Costa Rica
2016
Diferentes literaturas sugieren que el consumo de cannabis es un importante problema para la salud pública. El cannabis, por su naturaleza ilegal, llega a sus usuarios sin cumplimiento de normas adecuadas de cultivo, almacenamiento, procesamiento y tráfico; lo que puede generar diversos contaminantes, que pueden ser químicos, físicos o microbianos. La presencia de contaminantes microbianos es un riesgo para la salud de los usuarios, sobre todo en pacientes con el sistema inmune comprometido. Costa Rica no cuenta con estudios sobre la presencia de contaminantes microbianos en el cannabis comercializado, por lo que este estudio pretendía establecer si los hay en las muestras incautadas en sei…
The Genotype of the Donor for the (GT)n Polymorphism in the Promoter/Enhancer of FOXP3 Is Associated with the Development of Severe Acute GVHD but Do…
2015
The FOXP3 gene encodes for a protein (Foxp3) involved in the development and functional activity of regulatory T cells (CD4+/CD25+/Foxp3+), which exert regulatory and suppressive roles over the immune system. After allogeneic stem cell transplantation, regulatory T cells are known to mitigate graft versus host disease while probably maintaining a graft versus leukemia effect. Short alleles (<=(GT)(15)) for the (GT)(n) polymorphism in the promoter/enhancer of FOXP3 are associated with a higher expression of FOXP3, and hypothetically with an increase of regulatory T cell activity. This polymorphism has been related to the development of auto-or alloimmune conditions including type 1 diabetes …
Mercury exposure and risk of cardiovascular disease: a nested case-control study in the PREDIMED (PREvention with MEDiterranean Diet) study
2017
Background: Substantial evidence suggests that consuming 1-2 servings of fish per week, particularly oily fish (e.g., salmon, herring, sardines) is beneficial for cardiovascular health due to its high n-3 polyunsaturated fatty acid content. However, there is some concern that the mercury content in fish may increase cardiovascular disease risk, but this relationship remains unclear. Methods: The PREDIMED trial included 7477 participants who were at high risk for cardiovascular disease at baseline. In this study, we evaluated associations between mercury exposure, fish consumption and cardiovascular disease. We randomly selected 147 of the 288 cases diagnosed with cardiovascular disease duri…