Ordonnancement des cuves de décroissance dans un service de médecine nucléaire

En France, les effluents générés par des personnes traitées et hospitalisées en médecine nucléaire doivent être collectés dans des cuves de décroissance avant leur rejet dans le réseau d’assainissement, en accord avec les limites règlementaires définies. Un modèle utilisant une série d’exponentielle décroissante a été mis au point permettant de simuler l’évolution de l’activité volumique dans les cuves de décroissance. Ainsi son utilisation permet d’optimiser le nombre et la capacité des cuves par rapport à l’activité médicale actuelle ou future. En outre, ce modèle est très modulable puisqu’il intègre comme variables : la période physique du radioélément, le volume total de chaque cuve, l’activité excrétée par patient, le volume total d’effluents générés par patient durant son séjour en chambre blindée, le nombre de patients pris en charge lors de chaque semaine et le nombre de semaines avant la mise en décroissance de la cuve. Par ailleurs, les simulations avec ce modèle montrent qu’à activité médicale équivalente, il est possible de travailler soit avec 2 grandes cuves soit avec 3 cuves ayant une capacité réduite de 50 %. L’utilisation de plusieurs petites cuves permet en outre de maintenir la rotation des cuves de décroissance en cas de mise hors service d’une d’entre elles

Cyber-physical modeling of distributed resources for distribution system operations

Cosimulation platforms are necessary to study the interactions of complex systems integrated in future smart grids. The Virtual Grid Integration Laboratory (VirGIL) is a modular cosimulation platform designed to study interactions between demand-response (DR) strategies, building comfort, communication networks, and power system operation. This paper presents the coupling of power systems, buildings, communications, and control under a master algorithm. There are two objectives: first, to use a modular architecture for VirGIL, based on the functional mockup interface (FMI), where several different modules can be added, exchanged, and tested; and second, to use a commercial power system simulation platform, familiar to power system operators, such as DIgSILENT PowerFactory. This will help reduce the barriers to the industry for adopting such platforms, investigate and subsequently deploy DR strategies in their daily operation. VirGIL further introduces the integration of the quantized state system (QSS) methods for simulation in this cosimulation platform. Results on how these systems interact using a real network and consumption data are also presented

Adaptation and transcultural translation into spanish of the patient-rated tennis elbow evaluation questionnaire

[eng] The purpose of this study was to perform the translation and cross-cultural adaptation of Patient-Rated Tennis Elbow Evaluation questionnaire to Spanish language and evaluate its reliability and validity. The translation and culturally adaptation into Spanish was done in accordance with the published guidelines. One-hundred and fifty Spanish-speaking patients with unilateral chronic lateral epicondylalgia competed the questionnaire. Test-retest reliability was established by the intraclass correlation coefficient. Internal consistency was established with Cronbach's α. To establish convergent validity, we used the Disabilities of the Arm, Shoulder and Hand questionnaire using the Spearman's correlation coefficient. Error estimation in the measurements was calculated with the standard error of measurement. Our results showed a high internal consistency (Cronbach's α=0.96) and high test-retest reliability (intra-class coefficient=0.9; 0.89-0.94; p <0.001). The Spearman's correlation coefficient (r=0.765; p <0.001) showed a good relationship between the Spanish version of the Patient-Rated Tennis Elbow Evaluation questionnaire and the Disabilities of the Arm, Shoulder and Hand questionnaire. The standard error of measurement (11.9%) showed little variability of measurements. In conclusion, the Spanish version of the Patient-Rated Tennis Elbow Evaluation questionnaire is a valid and reliable tool that can be used to assess lateral epicondylalgia in Spanish-speaking individuals in order to implement the best treatment and reduce time with pain and disability. This article is protected by copyright. All rights reserved

Mycorrhizal stress alleviation in Senecio bonariensis

Loss of biodiversity and accumulation of contaminants in urban soils and water bodies cause serious issues in metropolitan areas. The Matanza-Riachuelo river basin (metropolitan area of Buenos Aires, Argentina) is one of the most environmentally degraded regions in the world. Senecio bonariensis Hook & Arn (Asteraceae) grows in the periodically flooded soils of this wetland. This plant concentrates potentially toxic trace elements (PTEs) in its tissues and establishes symbiosis with arbuscular mycorrhizal (AM) fungi that collaborate with PTE phytostabilization in soils. The objective of this work was to evaluate tolerance and stress alleviation of AM-colonized S. bonariensis when transplanting and exposing to highly polluted environmental conditions of the river basin. Plants were initially inoculated with different AM strains and maintained in greenhouse conditions. After 6 mo, they were transplanted to the field. These plants showed a more equal distribution between shoot and root biomass production in comparison to field spontaneous S. bonaerensis plants. Plants in earlier contact with native soil inoculum showed positive correlation with phosphorus content and a significant increase of vesicle frequency. Plants belatedly contacted with native inoculum in the field (control) showed a higher catalase level that was positively correlated with the total colonization frequency and chlorophyll content. The ability to establish symbiosis with Rhizophagus intraradices (strain GC3), commonly used in the formulation of biofertilizers, was also analyzed. Plants inoculated with GC3 at the beginning of the assay showed lower colonization and were less efficient in the field. The preservation of spontaneous native plants with ornamental value and bioaugmentation of their associated microbiome can contribute to the stabilization of contaminants in soils.Fil: Bompadre, Maria Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; ArgentinaFil: Benavidez, Matias Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Microbiología del Suelo; ArgentinaFil: Colombo, Roxana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Microbiología del Suelo; ArgentinaFil: Silvani, Vanesa Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Microbiología del Suelo; ArgentinaFil: Godeas, Alicia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biología Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y Biología Experimental y Aplicada; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Microbiología del Suelo; ArgentinaFil: Scotti, Adalgisa. Comisión Nacional de Energía Atómica; ArgentinaFil: Pardo, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; ArgentinaFil: Fernandez Bidondo, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentin