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See detailCore Level Excitation of Atomic and Molecular Clusters.
Rühl, E.; Schmale, C.; Jochims, H. W. et al

in Beswick, A. (Ed.) Synchrotron Radiation and Dynamic Phenomena. (1992)

Core level excitation of weakly bonded atomic and molecular species is reported. Excitations into unoccupied orbitals with valence and Rydberg character as well as into the corresponding K- and L-continua ... [more ▼]

Core level excitation of weakly bonded atomic and molecular species is reported. Excitations into unoccupied orbitals with valence and Rydberg character as well as into the corresponding K- and L-continua are compared with the isolated and condensed species. Core level excitation of clusters is also accompagned with extensive fragmentation of singly and doubly charged clusters. Coincidence techniques such as photoelectron-photoion-coincidences (PEPICO) and photoion-photoion-coincidence (PIPICO) are used to study the photochemical fragmentation pathways of core excited clusters. Kinetic energy releases related to charge separation of cluster dications (Coulomb explosion) are derived from PIPICO spectra. The fragmentation energetics is discussed in relation to cluster dication threshold energies. [less ▲]

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See detailCore properties of α Centauri A using asteroseismology
de Meulenaer, P.; Carrier, F.; Miglio, A. et al

in Astronomy and Astrophysics (2010), 523

Context. A set of long and nearly continuous observations of α Centauri A should allow us to derive an accurate set of asteroseismic constraints to compare to models, and make inferences on the internal ... [more ▼]

Context. A set of long and nearly continuous observations of α Centauri A should allow us to derive an accurate set of asteroseismic constraints to compare to models, and make inferences on the internal structure of our closest stellar neighbour. <BR /> Aims: We intend to improve the knowledge of the interior of α Centauri A by determining the nature of its core. <BR /> Methods: We combined the radial velocity time series obtained in May 2001 with three spectrographs in Chile and Australia: CORALIE, UVES, and UCLES. The resulting combined time series has a length of 12.45 days and contains over 10 000 data points and allows to greatly reduce the daily alias peaks in the power spectral window. <BR /> Results: We detected 44 frequencies that are in good overall agreement with previous studies, and found that 14 of these show possible rotational splittings. New values for the large (Δν) and small separations (δν[SUB]02[/SUB], δν[SUB]13[/SUB]) have been derived. <BR /> Conclusions: A comparison with stellar models indicates that the asteroseismic constraints determined in this study (namely r[SUB]10[/SUB] and δν[SUB]13[/SUB]) allows us to set an upper limit to the amount of convective-core overshooting needed to model stars of mass and metallicity similar to those of α Cen A. [less ▲]

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See detailCore velocity dispersion and mass-to-light ratio of the old Magellanic globular cluster NGC 1835
Dubath, P.; Meylan, G.; Mayor, M. et al

in Astronomy and Astrophysics (1990), 239

Abstract image available at: http://adsabs.harvard.edu/abs/1990A&A...239..142D

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See detailCore Velocity Dispersion of the LMC Globular Cluster NGC 1835
Meylan, G.; Dubath, P.; Mayor, M. et al

in Bulletin of the American Astronomical Society (1989, January 01)

Not Available

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See detailCore-polarization effects and radiative lifetime measurements in Pr III
Biémont, Emile ULg; Garnir, Henri-Pierre ULg; Palmeri, P. et al

in Physical Review. A (2001), 64

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See detailCore-polarization effects in Cu II
Biémont, Emile ULg; Pinnington, E. H.; Quinet, Pascal ULg et al

in Physica Scripta (2000), 61

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See detailCore-polarization effects in doubly ionized cerium (Ce III) for transitions of astrophysical interest
Biémont, Emile ULg; Quinet, Pascal ULg; Ryabchikova, T. A.

in Monthly Notices of the Royal Astronomical Society (2002), 336(4), 1155-1160

The importance of core-polarization effects on oscillator strength determination in Ce III is emphasized. The inclusion of these effects in relativistic Hartree-Fock (HFR) calculations leads to ... [more ▼]

The importance of core-polarization effects on oscillator strength determination in Ce III is emphasized. The inclusion of these effects in relativistic Hartree-Fock (HFR) calculations leads to theoretical lifetime values for some 4f6p levels of this ion in close agreement with recent time-resolved laser-induced fluorescence measurements. These new atomic data, the most accurate to date, have allowed the refinement of the stellar abundance determination of cerium in the chemically peculiar star HD 192913, but have not altered in a drastic way the conclusions derived in recent analyses regarding the overabundance of this element. [less ▲]

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See detailCore-polarization effects in the Cadmium Isoelectronic Sequence
Biémont, Emile ULg; Froese Fischer, C.; Godefroid, M. R. et al

in Physical Review. A (2000), 62

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See detailCore-shell AgSiO2-Protoporphyrin IX nanoparticle: Effect of the Ag core on reactive oxygen species generation
Lismont, Marjorie ULg; Pàez Martinez, Carlos ULg; Dreesen, Laurent ULg

in SPIE proceeding - Colloidal Nanoparticles for Biomedical Applications X (2015, February)

Photodynamic therapy (PDT) for cancer is based on the use of a light sensitive molecule to produce, under specific irradiation, toxic reactive oxygen species (ROS). A way to improve the therapy efficiency ... [more ▼]

Photodynamic therapy (PDT) for cancer is based on the use of a light sensitive molecule to produce, under specific irradiation, toxic reactive oxygen species (ROS). A way to improve the therapy efficiency is to increase the amount of produced ROS near cancer cells. This aim can be achieved by using a metal enhanced process arising when an optically active molecule is located near a metallic nanoparticle (NP). Here, the coupling effect between silver (Ag) NPs and protoporphyrin IX (PpIX) molecules, a clinically approved photosensitizer, is studied compared first, to PpIX fluorescence yield and second, to ROS production efficiency. By applying a modified Stöber process, PpIX was encapsulated into a silica (SiO2) shell, surrounding a 60 nm sized Ag core. We showed that, compared to SiO2-PpIX NPs, Ag coated SiO2-PpIX NPs dramatically decreased PpIX fluorescence together with singlet oxygen production efficiency. However, after incubation time in the dark, the amount of superoxide anions generated by the Ag doped sample was higher than the control sample one. [less ▲]

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See detailCore-shell InP-CdS nanowires: fabrication and study
Zanolli, Zeila ULg; Wacaser, Brent A; Pistol, Mats-Erik et al

in Journal of Physics : Condensed Matter (2007), 19(29),

InP nanowires are fabricated by organo-metallic vapour phase epitaxy and studied via photoluminescence measurements performed on single nanowires, finding evidence of state filling with increasing ... [more ▼]

InP nanowires are fabricated by organo-metallic vapour phase epitaxy and studied via photoluminescence measurements performed on single nanowires, finding evidence of state filling with increasing excitation power density. To increase flexibility in fabrication technology we developed a wet chemical procedure to grow a CdS shell on these wires. In these InP–CdS wires the luminescence efficiency was decreased with respect to the bare wires. The CdS capping procedure needs further investigations to improve the emission properties of nanowires, in order to become technically useful. We suggest as possible improvements of this technique to increase the bath temperature and/or illuminate the sample with UV radiation during the capping procedure. [less ▲]

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See detailCore-Shell-Corona Micelles by PS-b-P2VP-b-PEO Copolymers: Focus on the Water-Induced Micellization Process
Willet, Nicolas ULg; Gohy, Jean-François; Auvray, Loïc et al

in Langmuir (2008), 24(7), 3009-3015

It is now well established that amphiphilic PS-b-P2VP-b-PEO linear triblock copolymers can form multilayered assemblies, thus core-shell-corona (CSC) micelles, in water. Micellization is triggered by ... [more ▼]

It is now well established that amphiphilic PS-b-P2VP-b-PEO linear triblock copolymers can form multilayered assemblies, thus core-shell-corona (CSC) micelles, in water. Micellization is triggered by addition of a small amount of water into a dilute solution of the PS-b-P2VP-b-PEO copolymer in a non-selective organic solvent. However, the phenomena that take place at the very beginning of this process are poorly documented. How these copolymer chains are perturbed by addition of water was investigated in this work by light and neutron scattering techniques and transmission electron microscopy. It was accordingly possible to determine the critical water concentration (CWC), the compactness of the nano-objects in solution, their number of aggregation, and their hydrodynamic diameter at each step of the micellization process. [less ▲]

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See detailCore-Shell-Corona micelles with a responsive shell
Willet, Nicolas ULg; Gohy, Jean-François; Jérôme, Robert ULg

Conference (2002, April 12)

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See detailCore-shell-corona micelles with a responsive shell
Gohy, Jean-François; Willet, Nicolas ULg; Varshney, Sunil et al

in Angewandte Chemie (International ed. in English) (2001), 40(17), 3214-3216

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See detailCore-shell-corona micelles: focus on the pH-responsive shell
Willet, Nicolas ULg; Gohy, Jean-François; Jérôme, Robert ULg

Conference (2005, October)

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See detailCoréférence et stratégie des fonctions parallèles dans le cas des pronoms anaphoriques ambigus
Rondal, Jean-Adolphe ULg; Leyen, N.; Brédart, Serge ULg et al

in Current Psychology of Cognition [=CPC] = Cahiers de Psychologie Cognitive [=CPC] (1984), 4

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See detailCorneille, bâtard de Bourgogne (ca 1426-1452)
Marchandisse, Alain ULg

in Bousmar, Éric; Marchandisse, Alain; Masson, Christophe (Eds.) et al La bâtardise et l'exercice du pouvoir en Europe du XIIIe au début du XVIe siècle (2015)

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See detailCornéocytes, Malassezia et pellicules: une trilogie à dompter.
Pierard, Gérald ULg; Uhoda, Emmanuelle ULg; Franchimont, Claudine ULg

in Réalités Thérapeutiques en Dermato-Vénéréologie (2009), 183

Les pellicules et la dermite séborrhéique font vraisemblablement partie d’un continuum d’états desquamatifs associés à une colonisation de la couche cornée par des levures du genre Malassezia spp. Cette ... [more ▼]

Les pellicules et la dermite séborrhéique font vraisemblablement partie d’un continuum d’états desquamatifs associés à une colonisation de la couche cornée par des levures du genre Malassezia spp. Cette dernière s’avère hétérogène, allant de la rareté à l’abondance selon les cornéocytes. La vitesse d’action des shampooings antipelliculaires met en doute un effet antifongique direct, mais suggère plutôt l’intervention des défenses immunitaires innées. [less ▲]

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See detailCorneofungimetry bioassay on Malassezia spp. under ketoconazole and desonide influences.
Pierard, Claudine ULg; Vroome, Valérie; Cauwenbergh, Geert et al

in Skin Pharmacology & Physiology (2005), 18(2), 98-102

BACKGROUND: Glucocorticoids can boost some Malassezia-driven dermatoses. However, both antifungals and topical corticosteroids improve lesions of seborrheic dermatitis. OBJECTIVE: To revisit the topical ... [more ▼]

BACKGROUND: Glucocorticoids can boost some Malassezia-driven dermatoses. However, both antifungals and topical corticosteroids improve lesions of seborrheic dermatitis. OBJECTIVE: To revisit the topical activity of the antifungal ketoconazole and the corticosteroid desonide on Malassezia growth on human stratum corneum. Material and Methods: The computer-assisted corneofungimetry bioassay was used to compare the growth of M. furfur, M. globosa and M. restricta on human stratum corneum coated with olive oil. Four blinded gel formulations were tested. They contained either 2% ketoconazole, 0.05% desonide or a combination of 2% ketoconazole and 0.05% desonide; one gel was unmedicated. Untreated stratum corneum and specimens coated with a 2% ketoconazole cream were used as negative and positive comparators, respectively. A total of 45 samples (15 M. furfur, 15 M. globosa, and 15 M. restricta) were used for each test formulation in this randomized, double-blind study. RESULTS: The 2% ketoconazole gel and cream and the combination of 2% ketoconazole and 0.05% desonide formulation abated similarly and significantly the M. furfur, M. globosa and M. restricta growth. The 3 species were similarly sensitive to these formulations. By contrast, no significant inhibitory effect was yielded by the 0.05% desonide gel and the vehicle. CONCLUSION: The presence of 0.05% desonide does not impair or improve the Malassezia susceptibility to 2% ketoconazole when growing on lipid-enriched human stratum corneum. [less ▲]

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