Surface and near surface geochemical surveying of a CO2 injection pilot: application study to the French Pyrenean foreland (Rousse CCS pilot)

The geochemical monitoring of the Rousse injection pilot, operated by TOTAL Exploration Pproduction France, is presented over a 5- years long time period. The monitoring consisted in the acquisition at regular frequency of soil gas concentrations and fluxes at selected sampling points, coupled with the study of the geochemical parameters evolution of a perched aquifer overlying the storage reservoir through a dedicated 85 m depth borehole. Baseline data were acquired between September 2008 and December 2009 then the monitoring shifted to the surveying of the pilot during the operating phase. This second phase ended in March 2013. Data acquired during these two phases are presented and discussed

Evaluation of butorphanol, medetomidine and midazolam as a reversible narcotic combination in free-ranging African lions (Panthera leo)

Objective To evaluate the effects of the combination butorphanol, medetomidine and midazolam (BMM) and its reversibility in lions. Study design Prospective clinical trial. Animals Thirty free-ranging lions, 10 male and 20 female, weighing 81–210 kg. Methods Lions were immobilised with butorphanol mean 0.31 ± SD 0.034 mg kg-1, medetomidine 0.052 ± 0.006 mg kg-1, midazolam 0.21 ± 0.024 mg kg-1 and hyaluronidase 1250 IU administered intramuscularly with a dart gun. Upon recumbency, physiological parameters and anaesthetic depth were monitored 10–15 minutes after darting (T1) and repeated every 10 minutes for a further 30 minutes (T2, T3, T4). Arterial blood gas analyses were performed at T1 and T4. At the end of the procedure, 45–60 minutes after initial darting, immobilisation was reversed with naltrexone 0.68 ± 0.082 mg kg-1, atipamezole 0.26 ± 0.031 mg kg-1, and flumazenil 0.0032 ± 0.0007 mg kg-1 administered intravenously and subcutaneously. Results The BMM combination rapidly induced immobilisation and lateral recumbency was reached within 7.25 ± 2.3 minutes. Median induction score [scored 1 (excellent) to 4 (poor)] was 1.4 (range 1–2). Cardio-respiratory parameters were stable. Heart rate varied from 32 to 72 beats per minute, respiratory rate from 14 to 32 breaths minute-1 and rectal temperature from 36.6 to 40.3 C. No sudden arousals were observed. Arterial blood gas analyses revealed a mean pH of 7.33, PaCO2 of 33 mmHg and PaO2 of 87 mmHg. Mild to moderate hypoxemia was seen in four lions. Recovery was smooth and lions were walking within 4.4 ± 4.25 minutes. Median recovery score [scored 1 (excellent) to 4 (poor)] was 1.3 (range 1–2). Conclusion and clinical relevance The drug combination proved to be effective in immobilising freeranging healthy lions of both sexes with minimal cardio-respiratory changes

Mémento 2 : Résidences 1999-2000

This richly illustrated catalogue documents the work of 35 artists who took part in six residencies (including two events - La Cueillette and La Ruche) that took place in 1999 and 2000 at Centre Est-Nord-Est. The centre’s director, F. Michel, describes the nature and purpose of the residencies as well as that of the catalogue : to reflect each participant’s experience. Includes brief comments by the artist on their work and on their stay. Text in French and English. Biographical notes

Lawson criterion for ignition exceeded in an inertial fusion experiment

For more than half a century, researchers around the world have been engaged in attempts to achieve fusion ignition as a proof of principle of various fusion concepts. Following the Lawson criterion, an ignited plasma is one where the fusion heating power is high enough to overcome all the physical processes that cool the fusion plasma, creating a positive thermodynamic feedback loop with rapidly increasing temperature. In inertially confined fusion, ignition is a state where the fusion plasma can begin "burn propagation" into surrounding cold fuel, enabling the possibility of high energy gain. While "scientific breakeven" (i.e., unity target gain) has not yet been achieved (here target gain is 0.72, 1.37 MJ of fusion for 1.92 MJ of laser energy), this Letter reports the first controlled fusion experiment, using laser indirect drive, on the National Ignition Facility to produce capsule gain (here 5.8) and reach ignition by nine different formulations of the Lawson criterion

La ruche

This publication briefly presents the work of five artists who took part in a residency (summer of 2000) that focused on in situ practices in relation to the landscape of the Saint-Jean-Port-Joli region. Michel and Lafortune examine how the artists, whose work usually range from video to installation, resorted for this project to photography and its different uses (trace, document, art work). Texts in French and English. Brief biographical notes