RESUMO
Geodetic-grade Global Navigation Satellite System (GNSS) receivers designed to implement permanent stations represent the most complex and costly technology in the field of GNSS instrumentation. On the other hand, a large number of innovative applications, highly demanding in terms of positioning precision and accuracy, is pushing the implementation of networks of permanent stations with a higher and higher spatial density. In this scenario, the development of brand new GNSS reference stations, which combine the most advanced technologies in the field of data availability and integrity together with reduced costs (of instrumentation, installation and management) is becoming of paramount importance. For this reason, in 2019 the EU Agency for the Space Programme (EUSPA) has financed a research project, called "next Generation gnss REference stATion-GREAT", aimed at developing and demonstrating the potentiality of a brand new GNSS receiver suitable to implement permanent stations. This paper describes the solution developed by the project consortium, composed of four Small or Medium Enterprises (SMEs) based in Italy, France and Belgium, and the preliminary results achieved in the field tests.
Assuntos
Projetos de Pesquisa , Tecnologia , Bélgica , França , ItáliaRESUMO
ISOLATED MINORS' ADDICTIONS: FEEDBACK FROM THE ROBERT DEBRE HOSPITAL The emergency department of the Robert Debré pediatric hospital in Paris is receiving an increasing number of unaccompanied minors with somatic problems or who have overdosed on psychoactive substances. These young people are very vulnerable and in preca¬rious situations, with traumatic backgrounds, and are mostly boys from Maghreb. They are frequently used by criminal networks that keep them under the influence of addictive substances. They are generally dependent on tobacco and cannabis but can consume large quantities of drugs diverted from their use such as clonazepam and pregabaline, the risks of withdrawal of which compromise their access to care and can put them in danger. The liaison addiction team, in conjunction with the relevant partners in the city, has set up several tools to improve access to care for these vulnerable young people and enable them to be discharged within a legal framework: an identity recognition alert, a health alert and an initial emergen¬cy care protocol.
ADDICTIONS CHEZ LES MINEURS ISOLÉS : RETOUR D'EXPÉRIENCE DE L'HÔPITAL ROBERT-DEBRÉ Le service des urgences de l'hôpital pédiatrique Robert-Debré de Paris reçoit de plus en plus de mineurs non accompagnés pour des problèmes somatiques ou en situation de surdosage de produits psychoactifs. Ces jeunes très vulnérables et en situation précaire, au parcours traumatique, sont en majorité des garçons venant du Maghreb. Ils sont fréquemment utilisés par des réseaux de délinquance, qui les maintiennent sous l'emprise de substances addictives. Ils sont en général dépendants du tabac et du cannabis mais peuvent consommer de grandes quantités de médicaments détournés de leur usage, tels que le clonazépam et la prégabaline, dont les risques de sevrage compromettent leur accès aux soins et peuvent les mettre en danger. L'équipe d'addictologie de liaison a mis en place, avec les partenaires concernés de la ville, plusieurs outils pour améliorer l'accès aux soins de ces jeunes vulnérables et permettre leur sortie dans un cadre légal : une alerte de reconnaissance d'identité, une alerte sanitaire et un protocole de soins initial aux urgences.
Assuntos
Serviço Hospitalar de Emergência , Menores de Idade , Criança , Masculino , Humanos , Adolescente , Feminino , Retroalimentação , HospitaisRESUMO
A methanogenic and sulfate-reducing consortium, which was enriched on medium containing tetrachloroethylene (PCE), had the ability to dechlorinate high concentrations of PCE. Dehalogenation was due to the direct activity of methanogens. However, interactions between methanogenic and sulfate-reducing bacteria involved modification of the dechlorination process according to culture conditions. In the absence of sulfate, the relative percentage of electrons used in PCE dehalogenation increased after an addition of lactate in batch conditions. The sulfate reducers would produce further reductant from lactate catabolism. This reductant might be used by methanogenic bacteria in PCE dechlorination. A mutualistic interaction was observed in the absence of sulfate. However in the presence of sulfate, methanogenesis and dechlorination decreased because of interspecific competition, probably between the H(2)-oxydizing methanogenic and sulfate-reducing bacteria in batch conditions. In the semicontinuous fixed-bed reactor, the presence of sulfate did not affect dechlorination and methanogenesis. The sulfate-reducing bacteria may not be competitors of H(2)-consuming methanogens in the reactor because of the existence of microbial biofilm. The presence of the fixed film may be an advantage for bioremediation and industrial treatment of effluent charged in sulfate and PCE. This is the first report on the microbial ecology of a methanogenic and sulfate-reducing PCE-enrichment consortium.