10 research outputs found

    GREGOR: Optics Redesign and Updates from 2018-2020

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    The GREGOR telescope was inaugurated in 2012. In 2018, we started a complete upgrade, involving optics, alignment, instrumentation, mechanical upgrades for vibration reduction, updated control systems, and building enhancements and, in addition, adapted management and policies. This paper describes all major updates performed during this time. Since 2012, all powered mirrors except for M1 were exchanged. Starting from 2020, GREGOR observes with diffraction-limited performance and a new optics and instrument layout.Comment: Accepted by A&A, 10 page

    An Upper Limit to Ground Deformation in the Island of Tenerife, Canary Islands, for the Period 1997–2006

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    Continuous monitoring of ground deformation in the volcanic island of Tenerife, Canary Islands, is based on GPS networks, since there are as yet no tiltmeter stations installed on the island. However, there is a world-class astronomical observatory on the island, the El Teide Observatory, where four tiltmeters, two aligned in the North-South and the other two in the East-West, are monitoring the movements of the solar telescope THEMIS. THEMIS (Heliographic Telescope for the Study of Solar Magnetism and Instabilites) is among the three largest solar telescopes in the world. Since THEMIS is located a few kilometers from the main volcanic structures of the island, in particular the El Teide-Pico Viejo stratovolcano, and the precision of the inclinometers is comparable to those used in geophysical studies, we carried out the analysis of the tilt measurements for the period 1997–2006. The tiltmeters at THEMIS are placed in the seventh floor of a tower, hence their sensitivity to geological processes is reduced compared to geophysical installations. However, THEMIS measurements are the only terrestrial data available in Tenerife for such a long period of observations, which include the sustained increase in seismic activity that started in 2001. In this sense, a significant change was found in the East-West tilt of approximately 35 μ-radians between the years 2000 and 2002. Some theoretical models were calculated and it was concluded that such tilt variation could not be due to dike intrusions, nor a volcanic reactivation below the El Teide-Pico Viejo volcano. The most likely explanation comes from dislocations produced by a secondary fault associated to a major submarine fault off the eastern coast of Tenerife. In any case, taking into account the nearly permanent data recording at THEMIS, they could be considered as a complement for any ground deformation monitoring system in the island.Peer reviewe

    Gestion des interactions médicamenteuses par le pharmacien hospitalier : enquête sur les outils documentaires employés et expression du ressenti

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    International audienceObjectifs. Déterminer les outils documentaires utilisés par les pharmaciens hospitaliers pour la gestion des interactions médicamenteuses (IAM) et connaître le ressenti qu'ils éprouvent pour cette problématique dans le cadre de l'analyse des prescriptions médicamenteuses. Matériel et méthode. Un questionnaire a été diffusé aux adhérents de la Société française de pharmacie clinique (SFPC) et aux pharmaciens hospitaliers inscrits sur la liste de diffusion de l'Association pour le développement d'Internet en pharmacie hospitalière. Résultats. Deux cent quatre-vingt-onze pharmaciens ont répondu. La base de données Theriaque et le dictionnaire Vidal apparaissent comme les outils les plus répandus et les plus utilisés en première intention. Plus des trois quarts des participants se sentent a' l'aise ou très à l'aise pour citer les médicaments impliqués et décrire l'effet d'une IAM. Respectivement 76 %, 75 %, 59 %, 72 % et 57 % des répondeurs se sont déclarés peu ou pas à l'aise pour décrire le délai de survenue, son intensité, et en coter la gravité, préciser le niveau de preuves à partir des données de la littérature, et proposer la ou les mesures à mettre en oeuvre. Respectivement 68 %, 56 %, 30 % et 21% des participants pensent qu'ils pourraient être plus à l'aise dans le domaine des IAM au moyen de la formation continue, en procédant à un travail de lecture plus régulier, par l'acquisition d'un logiciel qui analyse automatiquement les IAM ou en acquérant un outil documentaire supplémentaire. Conclusion. La mise en place d'un programme de formation continue sur la gestion des IAM en routine clinique apparaît nécessaire

    Psychiatric symptoms and mortality in older adults with major psychiatric disorders: results from a multicenter study

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    [The effect of low-dose hydrocortisone on requirement of norepinephrine and lactate clearance in patients with refractory septic shock].

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