Marianne Cohen

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Landscape patterns and chimpanzee (Pan troglodytes schweinfurthii) densities in Kibale National Park show important variation among communities that are geographically close to one another (from 1.5 to 5.1 chimpanzees/km2). Anthropogenic activities inside the park (past logging activities, current encroachment) and outside its limits (food and cash crops)(More)
We present the rst results of a survey of Herbig Ae/Be stars (HAEBE) obtained with the Long Wavelength Spectrometer (LWS) on board of ISO. The OI] and CII] ne structure lines are the strongest features observed in the 45-198 m range and their intensity ratios are fully compatible with those expected from a photodissociation region. Molecular emission in(More)
We have searched for near-infrared extragalactic background light (EBL) in the data from the Near-InfraRed Spectrometer (NIRS) on the Infrared Telescope in Space (IRTS). After subtracting the contribution of faint stars and the zodiacal component based on modeling, a significant isotropic emission is obtained in the wavelength bands from 1.4 µm to 4.0 µm.(More)
We present results on the spectroscopic study of the ionized gas in the high redshift radio galaxy USS0828+193 at z =2.57. Thanks to the high S/N of the emission lines in the Keck spectrum, we have been able to perform a detailed kinematic study by means of the spectral decomposition of the emission line profiles. This study reveals the existence of two(More)
Some bacteria can carry out anaerobic respiration by depositing electrons on external materials, such as electrodes, thereby creating an electrical current. Into the anode chamber of microbial fuel cells (MFCs) having abiotic air-cathodes we inoculated microorganisms cultured from a magnetic particle-enriched portion of a marine tidal sediment, reasoning(More)
in the rest of the disk. The correlation remains notable even if we do not apply a thickness filter to the data or if we use another definition of the thickness (3, 11). The two maps are not independent, however; changing the density distribution in the arms will necessarily produce changes in the measured thickness unless the perturbations are distributed(More)
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