Inflación y crecimiento en América Latina : sumario de la discusión presente

El presente artículo muestra una breve reseña de la discusión reciente sobre las relaciones entre inflación y crecimiento en América Latina y en Colombia, debido a las situaciones inflacionarias vividas por algunos países latinoamericanos en 1950, las cuales generaron, desde finales de esa década, una intensa polémica en torno a la identificación de las variables económicas que inciden en la formación de las presiones inflacionarias en los países de la región. Desde entonces, dos enfoques teóricos han dominado la discusión: de un lado el monetarista, para el cual la inflación se origina en un exceso de demanda agregada generado por políticas monetarias y fiscales expansivas; y de otro lado el estructuralista, que considera la inflación como resultado de la debilidad estructural de la economía, manifestada en los sectores agrícola, industrial y externo. Así pues se permiten señalar causas macroeconómicas y sectoriales de la inflación, las primeras fundamentalmente asociadas al análisis monetarista y las segundas al enfoque estructural

Une approche de MDE pour la résolution de problèmes de configuration : Une application à la plate-forme Eclipse

Finding the right configuration is often a challenging task since one needs to deal with many dependencies between plug-ins and most of existing configuration engines are not flexible enough to work in different scenarios. In this paper we propose a MDE-based approach to solve configuration problems, considering them as constraints satisfaction problems. This approach has been applied by an industrial partner to the management of plug-ins in the Eclipse framework, a big issue for all the technolNational audienceLa recherche de la bonne configuration est souvent une tâche complexe nécessitant la gestion des nombreuses dépendances entre plug-ins. D'autant plus que la plupart des moteurs de configuration existants n'ont pas la flexibilité nécessaire permettant de s'adapter à différents scénarios. Dans cet article, nous proposons une approche fondée sur l'IDM permettant la résolution de problèmes de configuration, en les représentant comme des problèmes de satisfaction de contraintes. Un de nos partenaires industriels a utilisé cette approche pour la gestion des plug-ins dans le cadre d'Eclipse. Cette gestion est considérée comme un problème important pour tous les fournisseurs de solutions basées sur Eclipse

MoDisco, a Model-Driven Platform to Support Real Legacy Modernization Use Cases

International audiencePresentation of a model-driven migration chain used by Sodifrance on its projects and of Eclipse/MoDisco platform a new model-driven framework to develop legacy modernization tools

Qualitative modelling and analysis of regulations in multi-cellular systems using Petri nets and topological collections

In this paper, we aim at modelling and analyzing the regulation processes in multi-cellular biological systems, in particular tissues. The modelling framework is based on interconnected logical regulatory networks a la Rene Thomas equipped with information about their spatial relationships. The semantics of such models is expressed through colored Petri nets to implement regulation rules, combined with topological collections to implement the spatial information. Some constraints are put on the the representation of spatial information in order to preserve the possibility of an enumerative and exhaustive state space exploration. This paper presents the modelling framework, its semantics, as well as a prototype implementation that allowed preliminary experimentation on some applications.Comment: In Proceedings MeCBIC 2010, arXiv:1011.005

Associations of hypomagnesemia in patients seeking a first treatment of alcohol use disorder

Introduction: Hypomagnesemia (hypoMg) has not yet been extensively studied in alcohol use disorder (AUD) . We hypothesize that chronic, excessive alcohol consumption favors oxidative stress and pro-inflammatory alterations that may be exacerbated by hypoMg. The objective of this study was to analyze the prevalence and associations of hypoMg in AUD.Patients and Methods: Cross-sectional study in patients admitted for a first treatment of AUD in six tertiary centers between 2013 and 2020. Socio-demographic, alcohol use characteristics, and blood parameters were ascertained at admission.Results: 753 patients (71% men) were eligible; age at admission was 48 years [IQR, 41-56 years]. Prevalence of hypoMg was 11.2%, higher than that observed for hypocalcemia (9.3%), hyponatremia (5.6%), and hypokalemia (2.8%). HypoMg was associated with older age, longer duration of AUD, anemia, higher erythrocyte sedimen-tation rate, gamma-glutamyl transpeptidase, glucose levels, advanced liver fibrosis (FIB-4 >= 3.25) and estimated glomerular filtration rate (eGFR) < 60 mL/min. In multivariate analysis, advanced liver fibrosis (OR, 8.91; 95% CI, 3.3-23.9) and eGFR < 60 mL (OR, 5.2; 95% CI, 1.0-26.2) were the only factors associated with hypoMg.Conclusions: Mg deficiency in AUD is associated with liver damage and glomerular dysfunction suggesting that both comorbidities should be assessed in the course of serum hypoMg

Consistent patterns of common species across tropical tree communities

Trees structure the Earth’s most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations1,2,3,4,5,6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth’s 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world’s most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees.Publisher PDFPeer reviewe