|
|
LAUTREDOU A.C. (2012). Phylogénie multi-marqueurs des serraniformes à différentes échelles: implications pour la systématique des téléostéens acanthomorphes..
|
|
|
|
Tixier P. (2012). Interactions des pêcheries à la légine avec les orques et les cachalots dans la Zone Economique Exclusive de l’archipel de Crozet..
|
|
|
|
Romain Charlassier. (2010). Measuring the polarisation anisotropy of the Cosmic Microwave Background with the QUBIC bolometric interferometer.
Abstract: Detecting the Cosmic Microwave Background B-mode polarisation is one of the major challenges of nowadays cosmology. This measurement indeed appears as the most powerful way to place constraints on inflation, this process of extreme accelerated expansion that would have occurred during the first few moments of the Universe. The QUBIC project, one of the many experiments dedicated to this purpose, is based on a novel instrumental technique we call bolometric interferometry. The work described in this thesis attempts to establish the instrument design. We introduce a mathematical formalism that shows how the observables of interest can be measured. We then obtain an analytical formula giving the instrument sensitivity and derive the requirements that its components must satisfy. We show in particular that the receivers (horns) distribution must be highly redundant in order for the instrument to achieve an optimal sensitivity. We study the bandwidth smearing effect due to bolometers' wide spectral band and estimate the resulting sensitivity loss. We also introduce alternative designs of bolometric interferometers ; one of them (with rotating half-wave plate and no controlled phase-shifters) has become the standard design of the QUBIC instrument.We finally present a promising self-calibration procedure that, we think, may be regarded in the future as one of the main arguments in favor of bolometric interferometry.
Programme: 915
|
|
|
|
K. J. Parikka. (2013). Exploration des communautés virales thermophiles dans les écosystèmes chauds des Terres australes et antarctiques françaises. Thèse d'université , Université de Bretagne Occidentale, Brest..
|
|
|
|
Scheffer, Annette. (2013). Foraging behaviour of king penguins (Aptenodytes patagonicus) in relation to oceanography at South Georgia and Kerguelen.Thèse soutenue le 12 juin 2013 à l’Open University of Cambridge, cambridge (UK)..
|
|
|
|
S. Preunkert, M. Legrand, G. Pépy, H. Gallée, A. Jones, and B. Jourdain. (2014). The atmospheric HCHO budget at Dumont d’Urville (East Antarctica): Contribution of photochemical gas phase productions versus snow emissions. Bachelor's thesis, , .
|
|
|
|
Anaïs Fongy. (2013). Implication potentielle des protéines de fusion mitochondriale dans l’ontogenèse des processus bioénergétiques musculaires chez l’oiseau.
|
|
|
|
Ponchon, A. (2013). Comportements individuels et réponse des populations aux changements environnementaux – la mouette tridactyle comme modèle. PhD, Université Montpellier 2..
Abstract: The aim of this thesis is to study individual behaviours linked to breeding habitat selection
in a long-lived colonial seabird, the black-legged kittiwake, and to determine their importance in
population responses to environmental changes occurring at different spatial and temporal
scales. First, experimental approaches including GPS and satellite tracking of individuals allowed
demonstrating that only failed breeders performed prospecting movements involving visits of
other breeding areas. These movements were recorded from egg incubation to chick rearing at
local spatial scales (<1 km) as well as large spatial scales (> 40km), in various environmental
conditions. Then, a population dynamic model considering different dispersal strategies showed
that contrarily to philopatry and random dispersal, personal and social information use by
individuals favoured population persistence in the long-term. Finally, capture-recapture models
highlighted indirect interactions between sampling designs of long-term surveys of marked
individuals and behaviours linked to dispersal. These interactions can notably bias the estimation
of demographic parameters such as annual survival rate. All our results demonstrate that
breeding habitat selection and dispersal are complex but essential processes in the
understanding of population functioning and they have to be considered in models predicting
the dynamics, structure and persistence of populations in response to environmental changes.
Programme: 333
|
|
|
|
Alexandre Renard. (2013). Identification des sources printanières de méthylmercure
dans le manteau neigeux arctique.
|
|
|
|
Vacquié-Garcia Jade. (2014). Variation spatio-temporelle de l'activité d'alimentation des éléphants de mer en relation avec les paramètres physiques et biologiques de l'environnement..
|
|
