Search results for "mère"
showing 10 items of 52 documents
(Dis)habilités divines chez Homère et au-delà : Atē, les Litai et l’enfant d’Horkos
2019
This article aims at exploring the imperfect and deformed anthropomorphism of three different divine figures: two of them are evoked in the Homeric poems and the third one in Herodotus work. They are: Ate, the blind madness, who confuses people with disastrous consequences; the Litai, who are the implorations always prepared to follow Ate; and finally Horkos’ son, Oath’s child who condemns perjurers to oblivion. All these divine figures are characterised by their physical deformations or weaknesses, which, when analysed closely, reveal themselves to be a mark of their power. Scholars usually group these types of figures together under the label “personifications”. However, this term is not …
La battaglia di Himera (480 a.C.) nelle inerpretazioni storiografiche antiche e nelle moderne riletture di G. Grote ed E.A. Freeman
2014
Il sincronismo tra le battaglie di Himera e Salamina è stato codificato dalla storiografia antica con l’intento di unificare la Grecità, metropolitana e occidentale, nella comune celebrazione della vittoria contro il barbaro: un nome che accomuna indistintamente Cartaginesi e Persiani. Le due vittorie vennero interpretate tout court come un trionfo della civiltà sulla barbarie. Su questa stessa linea interpretativa si sono mosse alcune analisi della storiografia moderna (XIX-XX sec.) anch’esse caratterizzate da forti connotazioni ideologiche. L’attenzione si sofferma in particolare sulle riletture che degli eventi del 480 a.C. hanno dato G. Grote ed E. A. Freeman; nei loro lavori è possibil…
À l'école d'Homère
2015
Homère « maître de rhétorique » ou Homère « premier sophiste », tel est le paradoxe d’une réception antique qui fait de l’aède de Chios le maître d’un idéal oratoire. Ce volume décline les différentes modalités selon lesquelles l’autorité d’Homère s’exerce ou se voit discutée, dans la formation rhétorique des élites d’abord, puis dans le discours des sophistes et des orateurs. Dans les multiples situations de communication auxquelles l’homme éloquent sait répondre – discours public, banquet, dialogue familier, cour impériale –, le Poète est souvent invité. Parler d’Homère, c’est se révéler homme de culture, mais c’est aussi cimenter cette culture, en empruntant, par les exemples et les cita…
Etude structure/fonction du demi-transporteur ABCD2 dans le contexte de l'Adrénoleucodystrophie liée à l'X
2013
X-linked Adrenoleukodystrophy (X-ALD) is a rare neurodegenerative disease caused by deficiency of the peroxisomal half-transporter ABCD1, implicated in very long chain fatty acids import. Two additional half-transporters are located in the peroxisomal membrane: ABCD2 and ABCD3. Over-expression of ABCD2 is known to compensate for ABCD1 deficiency, making ABCD2 a therapeutic target for X-ALD treatment. In this context, the main objective of my thesis was to investigate the function and the structure of ABCD2, and more broadly, of peroxisomal ABC transporters.Half-transporters must at least dimerize to form a functional transporter. Alternative dimerization could modulate substrate specificity…
Etude de la stabilité de films industriels de PLA et de leur modification de surface pour des applications en tant qu'emballage alimentaire biodégrad…
2017
Poly(lactic acid) (PLA) is a biodegradable and renewable polyester, which is considered as the most promising eco-friendly substitute of conventional plastics. It is mainly used for food packaging applications, but some drawbacks still reduce its applications. On the one hand, its low barrier performance to gases (e.g. O2 and CO2) limits its use for applications requiring low gas transfer, such as modified atmosphere packaging (MAP) or for carbonate beverage packaging. On the other hand, its natural water sensitivity, which contributes to its biodegradation, limits its use for high moisture foods with long shelf life.Other biopolymers such as wheat gluten (WG) can be considered as interesti…
Synthesis of oligomers and polymers doped with porphyrins for solar energy conversion
2017
The aim of this thesis was to elaborate new electron donor materials for organic solarcells. This emerging photovoltaic technology is rapidly expanding, and has yet already reached the limit for its large-scale commercialization. The low manufacturing cost of organic photovoltaic devices make then competitive face to well-established inorganic technologies. Their biggest advantage is their weight and their mechanical properties which make them flexible. They should play a key role in future as a complement to classic solar cells, with their use in specific applications. We developed polymers by using different chomophores, well-known for their interesting photophysical properties: the porph…
Fabrication and optical characterization of long-range plasmonic waveguide interconnects for Tb/s datacom links
2019
Since the 1980s, researchers have been trying to design so-called "optical" computers, in which electrical signals would be replaced by photonic signals. For this, it is necessary to look at interconnection problems between components. This thesis deals with the problem of optical interconnection between electronic components. In order to propose a solution to this problem, we will study two types of plasmonic structures, a first structure of a single solid block where the information wave is reflected on an air prism, this structure is composed of a guide of metal wave covered with a layer of photoresist and it is named "ultra-long-distance plasmonic guide" (ULR-SPP). The second structure …
Temporal dynamics of arable weeds communities assembly : interactions between farming practices and ecological processes across crop sequences
2018
Understanding how farming practices affect weed community assembly in arable fields is a core challenge of agro-ecology. Weeds are supposed to share particular ecological characteristics that allow them to colonize arable fields despite environmental constrains exert by farming practices. In addition, interactions between ecological processes operating during a cropping season (eg: abiotic filtering) and at the scale of crop succession (eg: temporal dispersal) are supposed to drive weed community assembly in arable fields. These two hypotheses have been tested in my phD work.First, we compared a pool of weed species to a pool of non-weed herbaceous plants based on several functional traits …
Comportements alimentaires des jeunes enfants : liens avec les pratiques éducatives maternelles et paternelles ?
2019
National audience; Introduction et but de l'étude : Les pratiques éducatives des parents en matière d'alimentation peuvent favoriser une alimentation saine chez l'enfant dès le plus jeune âge. Une évaluation précise de l'effet de ces pratiques sur les dimensions qualitatives (ex. sélectivité alimentaire) et quantitatives (ex. autorégulation de la consommation) du comportement alimentaire de l'enfant est nécessaire en raison de l'effet potentiellement ambivalent de ces pratiques selon la dimension comportementale considérée. Par ailleurs, peu d'études intègrent le rôle des pères dans l'alimentation de l'enfant. Dans ce contexte, la présente étude visait à évaluer (1) l'impact des pratiques a…
Structure-function analysis of peroxisomal ATP-binding cassette transporters using chimeric dimers
2014
Background: Peroxisomal ABC transporters are predicted to function as homodimers in mammals. [br/] Results: ABCD1 interacts with ABCD2. Chimeric proteins mimicking full-length dimers represent novel tools for functional study. Artificial homodimers and heterodimers are functional. [br/] Conclusion: Interchangeability between ABCD1 and ABCD2 is confirmed, but PUFA transport depends on ABCD2. [br/] Significance: For the first time, heterodimers in mammals are proven to be functional.[br/] ABCD1 and ABCD2 are two closely related ATP-binding cassette half-transporters predicted to homodimerize and form peroxisomal importers for fatty acyl-CoAs. Available evidence has shown that ABCD1 and ABCD2 …