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See detailMolecular weight characterisation of polymers
Grandfils, Christian ULg

Conference (2010, December 07)

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See detailMolecular weight determination by visualization of stretched polycation molecules
Bocharova, Vera; Kiriy, Anton; Stamm, Manfred et al

in PMSE Preprints (2006), 95

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See detailMolecular weight effects on polystyrene fingerprint time-of-flight secondary ion mass spectroscopy (ToF-SIMS) spectra
Vanden Eynde, X.; Bertrand, P.; Jérôme, Robert ULg

in Macromolecules (1997), 30(21), 6407-6416

Monodisperse polystyrenes (PS) of different molecular weights (Mn) synthesized by living anionic polymerization with three types of butyllithium initiator (linear, n; secondary, sec; and tertiary, tert ... [more ▼]

Monodisperse polystyrenes (PS) of different molecular weights (Mn) synthesized by living anionic polymerization with three types of butyllithium initiator (linear, n; secondary, sec; and tertiary, tert) were analyzed by ToF-SIMS (time-of-flight secondary ion mass spectrometry). The influence of the molecular weight on the secondary ion intensities was studied in detail for the fingerprint part of the mass spectra (with m/z < 200). A drastic effect was observed for Mn values below 104, related to the presence of the saturated butyl end group. An extra hydrogen transfer originating from this end group during the secondary ion formation must be invoked to explain the data. Only the first neighbor monomer repeat units seem to be affected. This H exchange increases the intensity of ions containing more hydrogen or needing H transfer for their formation as the tropylium ion (C7H7+ at m/z = 91). The molecular structure of the butyl end group is found to influence greatly not only the intensity of their parent ion but also the PS characteristic ion intensities. Indeed, the tert-butyl end group is seen unable to produce the H transfer observed for the n- and sec-butyl ones. A model is proposed to take the influence of the end group on the PS SIMS fragmentation pattern into account. The parameters of this model allow the quantification of the end group interaction. [less ▲]

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See detailMolecular weight, amino acid composition and physicochemical properties of the exocellular DD-carboxypeptidase-transpeptidase of Streptomyces R39
Frère, Jean-Marie ULg; Moreno, Ramon; Ghuysen, Jean-Marie ULg

in Biochemical Journal (1974), 143(1), 233-240

The exocellular dd-carboxypeptidase-transpeptidase from Streptomyces R39 was purified to protein homogeneity and in milligram amounts. The isolated enzyme consisted of one polypeptide chain of molecular ... [more ▼]

The exocellular dd-carboxypeptidase-transpeptidase from Streptomyces R39 was purified to protein homogeneity and in milligram amounts. The isolated enzyme consisted of one polypeptide chain of molecular weight about 53300. Its amino acid composition and several physicochemical properties were determined and compared with those of the exo-cellular dd-carboxypeptidase-transpeptidase from Streptomyces R61. [less ▲]

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See detailMolecule orientation in self-assembled monolayers determined by infrared-visible sum-frequency generation spectroscopy
Mani, A. A.; Schultz, Z. D.; Champagne, B. et al

in Applied Surface Science (2004), 237

The molecular orientation in self-assembled monolayers of thiophenol (TP) on Ag(1 1 1) and of para-nitroanilinododecane-thiol (NAT) on Au was investigated by infrared-visible sum-frequency generation ... [more ▼]

The molecular orientation in self-assembled monolayers of thiophenol (TP) on Ag(1 1 1) and of para-nitroanilinododecane-thiol (NAT) on Au was investigated by infrared-visible sum-frequency generation between 500 and 1500 cm-1. Ab initio calculations were performed to determine the interface nonlinear response. The combined experimental and theoretical results reveal that the S–C bond of TP is tilted 37° from the Ag(1 1 1) surface normal, with the aromatic ring plane perpendicular to the surface. On Au, the tilt angle of the NAT molecule stabilizes below 60° at the end of film growth. [less ▲]

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See detailMolecule-based photonically switched half and full adder
Remacle, Françoise ULg; Weinkauf, R.; Levine, R. D.

in Journal of Physical Chemistry A (2006), 110(1), 177-184

A single molecule logic gate using electronically excited states and ionization/fragmentation can take advantage of the differences in cross-sections for one and two photon absorption. Fault tolerant ... [more ▼]

A single molecule logic gate using electronically excited states and ionization/fragmentation can take advantage of the differences in cross-sections for one and two photon absorption. Fault tolerant optically pumped half adder and full adder are discussed as applications. A full adder requires two separate additions, and the logic concatenation that is required to implement this is physically achieved by an intramolecular transfer along the side chain of 2-phenylethyl-N,N-dimethylamine (PENNA). Solutions of the kinetic equations for the temporal evolution of the concentration of different states in the presence of time-varying laser fields are used to illustrate the high contrast ratios that are potentially possible for such devices. [less ▲]

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See detailMolécules de la famille des protéases aspartiques dans le placenta des ruminants: hormones ou protéines ?
Beckers, Jean-François ULg; Roberts, R. Michael; Zoli, André Pagnah et al

in Bulletin et Mémoires de l'Académie Royale de Médecine de Belgique (1994), 149(8-11), 355-367

The placenta of ruminant contains binucleate trophoblastic cells synthesizing proteins, migrating cross the barrier and fusing with endothelial cells of the endometrium. Recently described were two ... [more ▼]

The placenta of ruminant contains binucleate trophoblastic cells synthesizing proteins, migrating cross the barrier and fusing with endothelial cells of the endometrium. Recently described were two glycoproteins from the family of aspartic proteases, apparently lacking the enzymatic activity: the pregnancy associated glycorproteins I and II (PAGI and PAGII). The first (PAGI) is largely secreted in maternal blood, this characteristic copes with the lack of proteolytic activity. The second (PAGII) is not completely characterized. However, it binds to lutropin (LH) receptors with high affinity. This binding allows to assume that PAGII is likely the same as the bovine chorionic gonadotropin identified earlier (bCG). A better characterization of these glycoproteins (PAGI and PAGII) and other members of the family (PAGIII...) will answer these questions together with the unexplained invasive process of the placenta. [less ▲]

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See detailMolécules diatomiques : étude des termes spectraux
Swings, Polydore ULg

Book published by Hermann (1933)

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See detailMolecules: their role in astronomy
Swings, Polydore ULg

in Publications of the Astronomical Society of the Pacific [=PASP] (1942), 54

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See detailMolière au théâtre, les Médecins à la Ville
Andrien, Natacha; Jaminon, Martine ULg

Learning material (2010)

Plaquette de l'exposition - Perception de la médecine du 17ème siècle à travers l'oeuvre de Molière

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See detailMollino, Carlo
Prina, Daniela ULg

in Atkinson, Harriet; Kettley, Sarah; Edwards, Clive (Eds.) et al Encyclopedia of Design (in press)

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See detailMolybdenite Re-Os dating constrains gravitational collapse of the Sveconorwegian orogen, SW Scandinavia
Bingen, Bernard; Stein, Holly J.; Bogaerts, Michel et al

in Lithos (2006), 87(3-4), 328-346

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See detailMoment capacity of beam-to-column minor-axis joints
Gomes, F.; Jaspart, Jean-Pierre ULg; Maquoi, René ULg

in Proceedings of the IABSE Colloquium on Semi-Rigid Structural Connections (1996)

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See detailMoment Method and Pixel-by-Pixel Method: Complementary Mode Identification I. Testing FG Vir-like pulsation modes
Zima, W.; Kolenberg, K.; Briquet, Maryline ULg et al

in Communications in Asteroseismology (2004), 144

We have carried out a Hare-and-Hound test to determine the reliability of the Moment Method (Briquet & Aerts 2003) and the Pixel-by-Pixel Method (Mantegazza 2000) for the identification of pulsation modes ... [more ▼]

We have carried out a Hare-and-Hound test to determine the reliability of the Moment Method (Briquet & Aerts 2003) and the Pixel-by-Pixel Method (Mantegazza 2000) for the identification of pulsation modes in Delta Scuti stars. For this purpose we calculated synthetic line profiles, exhibiting six pulsation modes of low degree and with input parameters initially unknown to us. The aim was to test and increase the quality of the mode identification by applying both methods independently and by using a combined technique. Our results show that, whereas the azimuthal order m and its sign can be fixed by both methods, the degree l is not determined unambiguously. Both identification methods show a better reliability if multiple modes are fitted simultaneously. In particular, the inclination angle is better determined. We have to emphasize that the outcome of this test is only meaningful for stars having pulsational velocities below 0.2 vsini. This is the first part of a series of articles, in which we will test these spectroscopic identification methods. [less ▲]

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See detailThe moment method
Briquet, Maryline ULg

Learning material (2008)

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See detailMoment rotation curves for bolted connections
Maquoi, René ULg; Jaspart, Jean-Pierre ULg

in Journal of Structural Engineering (1987), 113(N°10), 2324-2329

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See detailMomententragfähige Anschlüsse mit oder ohne Steifen
Jaspart, Jean-Pierre ULg; Ungermann, D.; Weynand, K. et al

in Stahlbau-Kalender 2005 (2005)

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See detailMomignies - Séloignes: notice explicative de la carte géologique de la Wallonie
Marion, Jean-Marc ULg; Barchy, Laurent ULg

Book published by Ministère de la Région wallonne, DGRNE (2001)

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using scientific data produced since the previous edition of Forir published in 1898 at the scale of 1/40 ... [more ▼]

New geological map of Wallonia published at the scale of 1/25.000, based on a new field work and using scientific data produced since the previous edition of Forir published in 1898 at the scale of 1/40.000 by the "Commission Géologique de Belgique". [less ▲]

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See detailMon animal préféré : peut-il me transmettre des maladies ?
Mignon, Bernard ULg

Conference given outside the academic context (2006)

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See detailMon cerveau, un ordinateur ?!
Dethier, Julie ULg; Noirhomme, Quentin; Van Calster, Laurens

Conference given outside the academic context (2014)

Dôter les ordinateur d'un cerveau ou faire assister nos cerveaux par des ordinateurs ? Trois chercheurs abordaient ces thématiques lors d'un Doc'Café mi-homme, mi-machine.

Detailed reference viewed: 13 (4 ULg)