Software development of a multiple-step workflow for assessing landfill gas surface emissions from sampling design to geostatistical modeling

INERIS and ISSeP have been working together on methodological aspects related to the assessment and the cartography of fugitive landfill biogas fluxes, in collaboration with KIDOVA and Ephesia who provided expertise on geostatistics. In order to obtain more reliable assessment of global and local landfill gas (LFG) surface emissions through landfill covers, Instantaneous Flux Measurement (IFM) as well as a two step sampling strategy have been used. This sampling strategy has been implemented by ISSeP and INERIS and compared favorably with other strategies. A multistep approach has been devised by ISSeP, INERIS and KIDOVA as a workflow to design sampling plans, to carry out data processing and to estimate local and global LFG emissions using statistical and geostatistical methods. Data coming from different steps of a case study were compared in order to provide the necessary information about methane surface emissions

Œil et maladie des griffes du chat : à propos de 7 cas

International audienceIntroduction. - Cat scratch disease is a pleiomorphic condition, sometimes with isolated ophthalmic involvement. We report the clinical observations of seven cases with ophthalmologic manifestations of cat scratch disease. Observations. - There were seven patients, with a median age of 52 years, of whom five were women and three had unilateral involvement. Six exhibited Leber's stellate neuroretinitis, an incomplete syndrome in two cases, and one associated with chorioretinal foci. One patient had isolated retinal infiltrates. The diagnosis of cat scratch disease was confirmed by Bartonella henselae serology, positive in all cases. All patients received treatment with doxycycline. Ocular complications (with optic atrophy and macular retinal pigment epithelial changes) were noted in five cases. Discussion. - Ocular bartonellosis is an atypical clinical form. It requires a directed ancillary work-up with serology or PCR, which has the peculiarity of being highly specific if not very sensitive. Treatment is above all preventive. Antibiotics may be initiated. Conclusion. - Cat scratch disease must be excluded in the work-up of posterior uveitis. (C) 2016 Elsevier Masson SAS. All rights reserved

La choroïdite multifocale : présentation inaugurale d’une maladie des griffes du chat

International audienc