Search results for "Pact"
showing 10 items of 2355 documents
A study of VUV emission and the extracted electron-ion ratio in hydrogen and deuterium plasmas of a filament-driven H−/D− ion source
2019
Vacuum ultraviolet (VUV) emission diagnostics for studying differences of electron impact processes in hydrogen and deuterium plasmas are presented. The method is applied to study a filament driven multicusp arc discharge negative ion source by comparing the VUV-emission intensities of different emission bands and extracted currents of H−/D− ions and electrons. It was found that the ratio of coextracted electrons to extracted ions is four times higher for deuterium than for hydrogen. No significant differences of the VUV-spectra or volumetric rates of ionization, excitation, production of high vibrational states, and dissociation were found between the plasmas of the two isotopes. The volum…
A note on discrete sets
2009
We give several partial positive answers to a question of Juhasz and Szentmiklossy regarding the minimum number of discrete sets required to cover a compact space. We study the relationship between the size of discrete sets, free sequences and their closures with the cardinality of a Hausdorff space, improving known results in the literature.
Sezione monografica. La cooperazione internazionale allo sviluppo. Costruire sull’esperienza
2018
La propensione per lo studio delle specificità culturali ha fatto dell’antropologia una delle discipline direttamente interessate ai processi di mutamento pianificato. L’attenzione per la cooperazione internazionale allo sviluppo e alle sue ricadute professionali è stata ben presente nell’antropologia italiana e all’interno dei convegni SIAA, ma il dibattito in seno all’associazione è rimasto per il momento sottodimensionato rispetto a un altro ambito di grande interesse pubblico, la migrazione dai paesi affetti da conflitti e povertà verso l’Europa e al ruolo che gli antropologi possono svolgere nelle politiche di accoglienza.
Les relations entre les sociétés et le fleuve Loire depuis le Moyen-Âge
2008
L'objectif de cet article est la compréhension des inter-relations entre un système fluvial – la Loire – et les sociétés riveraines. Souvent qualifiée de « dernier fleuve sauvage d'Europe » et réputée pour son patrimoine historique et écologique, la Loire a cependant subi depuis des siècles des interventions et aménagements variés. Les recherches interdisciplinaires récentes mettent en évidence l'importance des actions anthropiques sur le fonctionnement hydro-morphodynamique et écologique du fleuve depuis le Moyen-Âge. Les formes fluviales et les paysages actuels expriment des réajustements du fleuve à l'évolution de facteurs hydro-climatiques et socio-économiques qui jouent sur des pas de …
Le jeu des dynamiques relationnelles
2014
Relational dynamics and profile of power. French candidacies of Winter Olympics 2018 The main contribution of this research is to propose a tool to understand the importance of the dynamic relation in the situation of a candidacy to an international sport event. Olympic Games by their financial, media, sports effects... facilitate the emergence of a multiplicity of candidacies. To control the phases of selection and organization the International Olympic Committee maintains relations of closeness with cities pretenders. The results allow to verify that the dynamic relation have an impact on the selection of the city be candidate.
Fish Box in EPS : zero impact
2008
The object of the study is to demonstrate that an enterprise can be efficient also when it concerns the protection of the environment and that this is the key in order to obtain a sustainable development. In order to obtain this, a company is held to reduce the impact of the products during the entire life cycle of the product (from production to disposal) and to use adequate strategies that aim to reduce the impacts on the environment. The analysis will regard the field of packaging, considering a Sicilian company, that produces packaging made by Expanded Polystyrene (EPS) and in particular boxes for fish.
Compensación ambiental en Costa Rica: Aplicación del método hábitat/hectárea como alternativa para la estimación de áreas a indemnizar
2022
Para proyectos encaminados a la producción de bienes y servicios, la mayoría de países cuentan con legislación ambiental que, de una u otra manera, trata de reducir los impactos negativos que estos proyectos tengan con el entorno. El resarcimiento de hábitat o elementos del ambiente afectados suele presentarse como una sustitución a partir de recursos ecológicamente equivalentes. Sin embargo, una limitante frecuente es que los procedimientos de cómo realizar evaluaciones apropiadas de equivalencia ecológica no siempre son claros. Este trabajo provee una visión teórica del uso de compensación ambiental como instrumento jurídico/técnico integrado al manejo del entorno natural. Además, evalúa …
The psychological impact of the crisis: a qualitative study
2013
Alien Insect Impact on Cultural Heritage and Landscape: an Underestimated Problem
2017
The impact of alien invasive insects on cultural heritage and landscapes is very often neglected; even though, more than 50% of species that threaten cultural heritage in Europe are of exotic origin. In addition they are more aggressive. Several examples and a description, are given of the most dangerous alien insects present in heritage sites that constitute a risk for the conservation of cultural property: museum collections, libraries, archives and historic buildings. Globalisation has increased this phenomenon but traces of the accidental introduction of insect pests have occurred since Roman times. The paper discusses the need to implement an estimation of the costs that arise from the…
Entrepreneurship – Some General Knowledge
2013
The aim of this article is to provide some general information about entrepreneurship and some insights on the early theories about it. A brief overview of the main entrepreneurship measurement programme will provide some facts about the evolution of the entrepreneurial activity in Romania in the last few years.