Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailInsulinotropic action of (2S)-2-benzyl-3-(cis-hexahydro-2-isoindolinylcarbonyl) propionate. II. Ionophoretic and conformational aspects.
Malaisse, W. J.; Nadi, A. B.; Malaisse-Lagae, F. et al

in General Pharmacology (1995), 26(6), 1319-25

1. The non-sulphonylurea insulinotropic agent sodium (2S)-2-benzyl-3-(cis-hexahydro-2-isoindolinylcarbonyl) propionate (KAD-1229) was found to display calcium ionophoretic activity in an artificial ... [more ▼]

1. The non-sulphonylurea insulinotropic agent sodium (2S)-2-benzyl-3-(cis-hexahydro-2-isoindolinylcarbonyl) propionate (KAD-1229) was found to display calcium ionophoretic activity in an artificial membrane model. 2. Conformation analysis indicated that a complex between calcium and KAD-1229, with a 1:2 stoichiometry, indeed displays favourable attributes for ionophoretic activity across a hydrophobic environment. 3. It is speculated that the ionophoretic property of KAD-1229 might participate to the remodelling of cationic fluxes evoked by this insulinotropic agent in pancreatic islet cells. [less ▲]

Detailed reference viewed: 9 (0 ULg)
Peer Reviewed
See detailL’insulte « socialement correcte » ?
Meunier, Deborah ULg

Conference (2008)

Detailed reference viewed: 15 (0 ULg)
See detailLes insultes de la cour de récréation
Meunier, Deborah ULg

Conference (2007, January 12)

Detailed reference viewed: 17 (1 ULg)
Full Text
Peer Reviewed
See detailIntact cross-talk between insulin secretion and insulin action after postgastroplasty recovery of ideal body weight in severely obese patients.
Letiexhe, Michel ULg; Desaive, Claude ULg; Lefebvre, Pierre ULg et al

in International Journal of Obesity & Related Metabolic Disorders (2004), 28(6), 821-3

Most reports investigating the hormonal and metabolic effects of bariatric surgery studied obese subjects after partial weight loss only. Nevertheless, all studies showed significant improvements of ... [more ▼]

Most reports investigating the hormonal and metabolic effects of bariatric surgery studied obese subjects after partial weight loss only. Nevertheless, all studies showed significant improvements of insulin secretion, action, clearance and inhibition of its own secretion, although the parallel kinetics of all these changes remained questionable. Using the intravenous glucose tolerance test, we demonstrated a full normalization of insulin secretion, action on glucose metabolism and clearance in eight obese women who recovered and maintained ideal body weight following gastroplasty. Reciprocal changes were observed between postglucose acute insulin secretion and insulin-mediated glucose disposal so that the so-called disposition index (product of these two variables) remained unchanged after vs before gastroplasty in those individuals with normal glucose tolerance. These favourable results should encourage obtaining a drastic and sustained weight loss in patients with severe obesity at risk of developing type II diabetes. [less ▲]

Detailed reference viewed: 21 (2 ULg)
Peer Reviewed
See detailIntact Implicit learning in Schizophrenia
Danion, Jean-Marie; Meulemans, Thierry ULg; Kauffmann-Muller, F. et al

in American Journal of Psychiatry (The) (2001), 158(6), 944-948

Detailed reference viewed: 20 (1 ULg)
Full Text
Peer Reviewed
See detailIntact procedural motor sequence learning in developmental coordination disorder
Lejeune, Caroline ULg; Catale, Corinne ULg; Willems, Sylvie ULg et al

in Research in Developmental Disabilities (2013), 34(6), 1974-1981

The purpose of the present study was to explore the possibility of a procedural learning deficit among children with developmental coordination disorder (DCD). We tested 34 children aged 6–12 years with ... [more ▼]

The purpose of the present study was to explore the possibility of a procedural learning deficit among children with developmental coordination disorder (DCD). We tested 34 children aged 6–12 years with and without DCD using the serial reaction time task, in which the standard keyboard was replaced by a touch screen in order to minimize the impact of perceptuomotor coordination difficulties that characterize this disorder. The results showed that children with DCD succeed as well as control children at the procedural sequence learning task. These findings challenge the hypothesis that a procedural learning impairment underlies the difficulties of DCD children in acquiring and automatizing daily activities. We suggest that the previously reported impairment of children with DCD on the serial reaction time task is not due to a sequence learning deficit per se, but rather due to methodological factors such as the response mode used in these studies. [less ▲]

Detailed reference viewed: 66 (22 ULg)
Peer Reviewed
See detailIntact transferrin receptors in human plasma and their relation to erythropoiesis.
Huebers, H. A.; Beguin, Yves ULg; Pootrakul, P. et al

in Blood (1990), 75(1), 102-7

Intact transferrin receptor molecules complexed with transferrin were found in human plasma. The concentration of receptors was determined by an enzyme-linked immunosorbent assay that uses polyclonal ... [more ▼]

Intact transferrin receptor molecules complexed with transferrin were found in human plasma. The concentration of receptors was determined by an enzyme-linked immunosorbent assay that uses polyclonal antibodies. The mean concentration of 8,279 micrograms/L in 56 normal adults appears to be unrelated to age or sex. Additional receptor measurements were performed on plasmas from 260 subjects with erythropoietic disorders. Decreased concentration of plasma receptors was found in patients with erythroid hypoplasia and increased numbers in those with erythroid hyperplasia. Ferrokinetic measurements of erythropoiesis were compared with numbers of receptors in 148 subjects, and a close correlation was found (r = .86). Both sets of values, measured in different conditions and expressed in relation to normal, were consistent with expected values. Receptor values were unproportionally increased only in conditions of iron deficiency. It is concluded that plasma receptors have a constant relationship to tissue receptors, and their number in most instances reflects the rate of erythropoiesis. [less ▲]

Detailed reference viewed: 14 (3 ULg)
Full Text
Peer Reviewed
See detailINTAKE OF DIOXINS AND DIOXIN-LIKE PCBs CONSUMING HOME PRODUCED VERSUS COMMERCIAL EGGS
Sioen, Isabelle; Bilau, Maaike; Van Overmeire, Ilse et al

in Organohalogen Compounds (2008)

Detailed reference viewed: 40 (1 ULg)
See detail«Intavulare». Tables de chansonniers romans. II: Chansonniers français.
Moreno, Paola ULg

Book published by Bibliothèque de la Faculté de Philosophie et Lettres (1999)

Detailed reference viewed: 17 (2 ULg)
Full Text
Peer Reviewed
See detailAn Integer Programming model for air transport of hazardous and special shipments
Kleyntssens, Thomas ULg; Limbourg, Sabine ULg; Schyns, Michael ULg

Conference (2012, February 02)

The aircraft loading problem is a real-world combinatorial optimisation problem highly constrained. This weight must be distributed to keep the centre of gravity within speci ed limits. Moreover, an ... [more ▼]

The aircraft loading problem is a real-world combinatorial optimisation problem highly constrained. This weight must be distributed to keep the centre of gravity within speci ed limits. Moreover, an aircraft has usually several cargo compart- ments with speci c contours and structural limitations such as oor loading, com- bined load limits and cumulative load limitations. Finally, some shipments are par- ticularly restrictive to transport, like dangerous goods, live animals and perishable goods. This paper is concerned with the incorporation of these latter constraints in a mixed integer linear program for the problem of loading a set of Unit Load- ing Devices and bulk into an aircraft. Experimental results show that our method achieves optimal solutions within only few seconds. [less ▲]

Detailed reference viewed: 93 (30 ULg)
Full Text
Peer Reviewed
See detailInteger Programs with Prescribed Number of Solutions and a Weighted Version of Doignon-Bell-Scarf’s Theorem
Aliev, Iskander; De Loera, Jesus; Louveaux, Quentin ULg

in Lee, Jon; Vygen, Jens (Eds.) Proceedings of the 17th IPCO (2014)

In this paper we study a generalization of the classical fesibility problem in integer linear programming, where an ILP needs to have a prescribed number of solutions to be considered solved. We first ... [more ▼]

In this paper we study a generalization of the classical fesibility problem in integer linear programming, where an ILP needs to have a prescribed number of solutions to be considered solved. We first provide a generalization of the famous Doignon-Bell-Scarf theorem: Given an integer k, we prove that there exists a constant c(k, n), depending only on the dimension n and k, such that if a polyhedron {x : Ax ≤ b} contains exactly k integer solutions, then there exists a subset of the rows of cardinality no more than c(k,n), defining a polyhedron that contains exactly the same k integer solutions. The second contribution of the article presents a structure theory that characterizes precisely the set Sg≥k (A) of all vectors b such that the problem Ax = b, x ≥ 0, x ∈ Zn , has at least k-solutions. We demonstrate that this set is finitely generated, a union of translated copies of a semigroup which can be computed explicitly via Hilbert bases computation. Similar results can be derived for those right-hand-side vectors that have exactly k solutions or fewer than k solutions. Finally we show that, when n, k are fixed natural numbers, one can compute in polynomial time an encoding of Sg≥k(A) as a generating function, using a short sum of rational functions. As a consequence, one can identify all right-hand-side vectors that have exactly k solutions (similarly for at least k or less than k solutions). Under the same assumptions we prove that the k-Frobenius number can be computed in polynomial time. [less ▲]

Detailed reference viewed: 25 (1 ULg)
Full Text
Peer Reviewed
See detailIntegracion Numerica del Problema Viscoplastico
Andia Fages, Susana; Raichman, Silvia; Mirasso, Anibal et al

(2009)

En este trabajo se discute la integración numérica para el modelo viscoplástico de Perzyna, que conduce a una ecuación de consistencia viscoplástica no lineal, de acuerdo a un trabajo previo de Ponthot ... [more ▼]

En este trabajo se discute la integración numérica para el modelo viscoplástico de Perzyna, que conduce a una ecuación de consistencia viscoplástica no lineal, de acuerdo a un trabajo previo de Ponthot. Esta ecuación no lineal se resuelve mediante elMétodo de Newton Raphson y el algoritmo resultante se implementa en MATLAB. Los resultados obtenidos con el programa desarrollado ajustan muy bien con soluciones cerradas disponibles en la literatura para algunos casos particulares. En este trabajo además se propone una solución cerrada para el caso de sensitividad viscosa lineal (m=1) y exponente de endurecimiento viscoplástico lineal (n=1). Se estudia además la respuesta del algoritmo frente a la variación de diferentes parámetros como el coeficiente de viscosidad. El código obtenido en una etapa posterior del estudio se podrá utilizar para resolver otros problemas de interés y, además, permitirá su implmentación en un código de elementos finitos con capacidades no lineales. [less ▲]

Detailed reference viewed: 39 (2 ULg)
Full Text
See detailIntegral and derivative dispersion relations in the analysis of the data on p p and anti-p p forward scattering
Cudell, Jean-René ULg; Martynov, E.; Selyugin, Oleg V

in Ukrainian Journal of Physics (2003), 48(Nos. 11- 12, 2003),

Detailed reference viewed: 8 (0 ULg)
Full Text
See detailIntegral and derivative dispersion relations, analysis of the forward scattering data
Martynov, E.; Cudell, Jean-René ULg; Selyugin, Oleg V

in Eur. Phys. J. (2004), C33

Detailed reference viewed: 8 (0 ULg)
Full Text
Peer Reviewed
See detailINTEGRAL detection of hard X-rays from NGC 6334: nonthermal emission from colliding winds or an AGN?
Bykov, A. M.; Krassilchtchikov, A. M.; Uvarov, Y. A. et al

in Astronomy and Astrophysics (2006), 449(3), 917-923

Aims. We report the detection of hard X-ray emission from the field of the star-forming region NGC 6334 with the International Gamma-Ray Astrophysics Laboratory INTEGRAL. Methods. The JEM-X monitor and ... [more ▼]

Aims. We report the detection of hard X-ray emission from the field of the star-forming region NGC 6334 with the International Gamma-Ray Astrophysics Laboratory INTEGRAL. Methods. The JEM-X monitor and ISGRI imager aboard INTEGRAL and Chandra ACIS imager were used to construct 3-80 keV images and spectra of NGC 6334. Results. The 3-10 keV and 10-35 keV images made with JEM-X show a complex structure of extended emission from NGC 6334. The ISGRI source detected in the energy ranges 20-40 keV, 40-80 keV, and 20-60 keV coincides with the NGC 6334 ridge. The 20-60 keV flux from the source is (1.8 +/- 0.37) x 10(-11) erg cm(-2) s(-1). Spectral analysis of the source revealed a hard power-law component with a photon index about 1. The observed X-ray fluxes are in agreement with extrapolations of X-ray imaging observations of NGC 6334 by Chandra ACIS and ASCAGIS. Conclusions. The X-ray data are consistent with two very different physical models. A probable scenario is emission from a heavily absorbed, compact and hard Chandra source that is associated with the AGN candidate radio source NGC 6334B. Another possible model is the extended Chandra source of nonthermal emission from NGC 6334 that can also account for the hard X-ray emission observed by INTEGRAL. The origin of the emission in this scenario is due to electron acceleration in energetic outflows from massive early type stars. The possibility of emission from a young supernova remnant, as suggested by earlier infrared observations of NGC 6334, is constrained by the non-detection of Ti-44 lines. [less ▲]

Detailed reference viewed: 32 (1 ULg)
Peer Reviewed
See detailIntegral equation methods for the Helmholtz problem with a random impedance condition
Gaignaire, R.; Geuzaine, Christophe ULg

in Proceedings of the 9th International Conference on Mathematical and Numerical Aspects of Waves, Waves 2009 (2009)

Detailed reference viewed: 12 (0 ULg)
Full Text
See detailIntegral Field Spectroscopy of Selected Extragalactic Objects with FUEGOS
Surdej, Jean ULg; Vanderriest, C.; Angonin-Willaime, M.-C. et al

in Walsh, J.; Danziger, J. (Eds.) Science with the VLT (1995)

Detailed reference viewed: 13 (9 ULg)
Full Text
Peer Reviewed
See detailThe integral membrane FtsW protein and peptidoglycan synthase PBP3 form a subcomplex in Escherichia coli
Fraipont, Claudine ULg; Alexeeva, Svetlana; Wolf, Benoît et al

in Microbiology (2011), 157

Detailed reference viewed: 40 (9 ULg)
Full Text
Peer Reviewed
See detailINTEGRAL-ISGRI observations of the cygnus OB2 region - Searching for hard X-ray point sources in a region containing several non-thermal emitting massive stars
De Becker, Michaël ULg; Rauw, Grégor ULg; Pittard, J. M. et al

in Astronomy and Astrophysics (2007), 472(3), 905-910

Aims. We analyze INTEGRAL-ISGRI data in order to probe the hard X-ray emission ( above 20 keV) from point sources in the CygOB2 region and to investigate the putative non-thermal high-energy emission from ... [more ▼]

Aims. We analyze INTEGRAL-ISGRI data in order to probe the hard X-ray emission ( above 20 keV) from point sources in the CygOB2 region and to investigate the putative non-thermal high-energy emission from early-type stars (Wolf-Rayet and O-type stars). Among the targets located in the field of view, we focus on the still unidentified EGRET source 3EG2033+4118 that may be related to massive stars known to produce non-thermal emission in the radio domain, and on the wide colliding-wind binary WR 140. Methods. Using a large set of data obtained with the IBIS-ISGRI imager onboard INTEGRAL, we run the OSA software package in order to find point sources in the fully coded field of view of the instrument. Results. Our data do not allow the detection of a lower-energy counterpart of 3EGJ2033+4118 nor of any other new point sources in the field of view, and we derive upper limits on the high-energy flux for a few targets: 3EGJ2033+4118, TeVJ2032+4130, WR 140, WR 146 and WR 147. The results are discussed in the context of the multiwavelength investigation of these objects. Conclusions. The upper limits derived are valuable constraints for models aimed at understanding the acceleration of particles in non-thermal emitting massive stars, and of the still unidentified very-high gamma-ray source TeVJ2032+4130. [less ▲]

Detailed reference viewed: 32 (10 ULg)