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Article
Impact of ASCO guidelines for the use of hematopoietic colony stimulating factors (CSFs): survey results of fifteen Paris university hospitals
To assess whether physicians comply with American Society of Clinical Oncology (ASCO) guidelines for the use of CSFs, a prospective survey was performed in 15 Paris university hospitals involved in cancer trea...
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Chapter
Study of Mass A=130 Fission Fragments in the 14n + 238U Reaction at 10 MeV/A
Fission fragments in the mass A≈130 region, lying close to the ß-stability line, were produced in the 14N + 238U fusion-fission reaction at 10 MeV/A. The 14N beam was delivered by the Separated Sector Cyclotron a...
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Article
A dynamic study of onion phases under shear flow: size changes
It has been shown that lyotropic lamellar phases under shear flow form structures corresponding to a close packed assembly of monodisperse multilamellar vesicles (onions). The size, which is fixed by the shear...
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Chapter and Conference Paper
Dilute and concentrated phases of vesicles at thermal equilibrium. Effect of bilayer elasticity
It has been shown theoretically that phases of unilamellar and multilamellar vesicles are stable when the curvature energy of the bilayer, described by two elastic constants κ and
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Article
A comparison of DMPC membranes mixed with melittin or C12E5
The effect of adding the defect-forming molecules melittin and C12E5 to DMPC membranes has been studied and the corresponding phase diagrams established. Light, X-ray and neutron small-angle scattering have been ...
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Chapter
On The Effectiveness of Some Inversion Methods For Noisy Fourier Series
A recent very general method for inversion of noisy Fourier series (given in [2]) employs suitable approximate units. In this paper, for some classical kernels, we give the estimates of the parameters involved...
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Chapter
Introduction and General Theory of Lyotropic Liquid Crystals
Amphilic molecules incorporate two antagonistic chemical functions. One part of the molecule is very soluble in water (hydrophilic) and another part is very soluble in an organic solvent (hydrophobic). Due to ...
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Chapter
Surfactant Association: Recent Theoretical and Experimental Developments
A theoretical model describing the association of ionic surfactants into rod-shaped micelles is combined with an approximate formula for the viscosity increase induced by rod-shaped aggregates. It is shown tha...
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Article
Livres reçus
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Chapter
Universal Behavior in Phospholipid Multimembrane Systems
Stacked multimembrane structures of the phospholipid DMPC show two interesting universal behaviors due to geometric concerns. X-ray scattering studies were done to elucidate the structure of the ordered phases...
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Chapter
Field Variables and Critical Phenomena in Microemulsions
Some general features of field variables and critical phenomena in multicomponent systems are discussed. Critical behavior of surfactants in solution is specially examined, and results for a ternary system com...
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Chapter
Defects in Lamellar Phases of Amphiphile-Water Systems
The lamellar phase of an amphiphile-water system is composed of alternating, stacked, infinite domains of bilayer and water. These bilayers or membranes have been traditionally thought to be continuous and hom...
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Chapter and Conference Paper
The Sponge State: A Striking Isotropic Liquid Phase
Surfactants in solution may associate into two-dimensional aggregates (membranes) which self-organize either in liquid crystalline phases or, more surprisingly, in a liquid isotropic phase made of connected bi...
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Article
Computer simulations of the growth of breath Figures
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Chapter and Conference Paper
Experimental evidence for bicontinuous structures in L 3 phases
Anomalous flow birefringent phases, sometimes designated as L 3, have been identified in both the water-rich and the oil-rich parts of the phase diagram of the water(-NaCl)-dodecane-pentanol-SDS sys...
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Chapter and Conference Paper
Dynamiclight scattering study of membrane interactions in colloidal smectics
Dynamic light scattering measurements on oriented samples of dilute lyotropic smectics have been performed. The hydrodynamics of a two-component smectic A is reviewed and applied to describe the fluctuation spect...
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Chapter
A Global Description of Phase Equilibria in the Quaternary Microemulsion System: Water-Dodecane-Pentanol-Sodium Dodecylsulfate
The knowledge of the phase diagram of a multicomponent system is a fundamental necessary step for the understanding of the physics of the system. It has been clearly and intensively shown by Ekwall and coworke...
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Chapter
Thermal Fluctuations and the Structure of Microemulsions
We analyze the role of thermal fluctuations in determining the phase equilibria and structural properties of microemulsions. In the dilute limit, where the microemulsions are globular, the effects of thermal f...
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Chapter and Conference Paper
Interactions in Lyotropic Lamellar Phases: A High Resolution X-Ray Study
The understanding of interactions between membranes has attracted a lot of attention in the last decade, the reason being the relevance of these interactions in biological processes such as cell-cell interacti...
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Chapter and Conference Paper
Middle-Phase Microemulsions and Random Surfaces
A characteristic feature of microemulsions, as opposed to simple liquid mixtures, is that the oil and water remain separated by surfactant monolayers with coherent domains, typically tens or hundreds of Angstr...
