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See detailDiagnosis and monitoring of pregnancy in sheep: reality and perspectives
El Amiri, Bouchra; Karen, Aly; Cognié, Yves et al

in Productions Animales (2003), 16(2), 79-90

The present review aims at presenting different methods for pregnancy diagnosis. Since these methods are to be used in the herds, precocity, sensitivity, specificity, accuracy to predict pregnant and non ... [more ▼]

The present review aims at presenting different methods for pregnancy diagnosis. Since these methods are to be used in the herds, precocity, sensitivity, specificity, accuracy to predict pregnant and non-pregnant ewes, and the possibility to determine fetal numbers are carefully analysed. The progesterone assay is accurate as early as day 17th after fecundation; but the fertilization day must be precisely known. The pregnancy specific or associated glycoproteins (PSPB/PAG) assay is highly sensitive and specific at day 22 in blood and at day 32 in milk samples. However, this assay does not allow to predict the fetal number. The ultrasonography B-mode used on 30 days of gestation gives very good or excellent performance in terms of sensitivity and specificity depending on the practitioner. The method is also able to predict the real time fetal number. [less ▲]

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See detailLe Musée en Piconrue de Bastogne
Donneau, Olivier ULg

in Invitation au musée : Courrier du patrimoine culturel de la Communauté française (2003), 4

Courte présentation des activités du Musée en Piconrue de Bastogne.

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See detailSong activation by testosterone is associated with an increased catecholaminergic innervation of the song control system in female canaries
Appeltants, D.; Ball, G. F.; Balthazart, Jacques ULg

in Neuroscience (2003), 121(3), 801-814

In canaries, singing and a large number of morphological features of the neural system that mediates the learning, perception and production of song exhibit marked sex differences. Although these ... [more ▼]

In canaries, singing and a large number of morphological features of the neural system that mediates the learning, perception and production of song exhibit marked sex differences. Although these differences have been mainly attributed to sex-specific patterns of the action of testosterone and its metabolites, the mechanisms by which sex steroids regulate brain and behavior are far from being completely understood. Given that the density of immunoreactive catecholaminergic fibers that innervate telencephalic song nuclei in canaries is higher in males, which sing, than in females, which usually do not sing, we hypothesized that some of the effects induced by testosterone on song behavior are mediated through the action of the steroid on the catecholaminergic neurons which innervate the song control nuclei. Therefore, we investigated in female canaries the effects of a treatment with exogenous testosterone on song production, on the volume of song control nuclei, and on the catecholaminergic innervation of these nuclei as assessed by immunocytochemical visualization of tyrosine hydroxylase. Testosterone induced male-like singing in all females and increased by about 80% the volume of two telencephalic song control nuclei, the high vocal center (HVC) and the nucleus robustus archistriatalis (RA). Testosterone also significantly increased the fractional area covered by tyrosine hydroxylase-immunoreactive structures (fibers and varicosities) in most telencephalic song control nuclei (HVC, the lateral and medial parts of the magnocellular nucleus of the anterior neostriatum, the nucleus interfacialis, and to a lesser extent RA). By contrast, testosterone did not affect the catecholaminergic innervation of the telencephalic areas adjacent to HVC and RA. Together these data demonstrate that, in parallel to its effects on song behavior and on the morphology of the song control system, testosterone also regulates the catecholaminergic innervation of most telencephalic song control nuclei in canaries. The endocrine regulation of singing may thus involve the neuromodulatory action of specialized dopaminergic and/or noradrenergic projections onto several key parts of the song control system. (C) 2003 IBRO. Published by Elsevier Ltd. All rights reserved. [less ▲]

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See detailL’idole brisée : la droite belge francophone et la crise morale de la France (1934-1938)
Lanneau, Catherine ULg

in Revue Belge d'Histoire Contemporaine = Belgisch Tijdschrift voor Nieuwste Geschiedenis (2003), XXXIII(1-2), 177-214

The French-speaking right wing in Belgium has always granted a paramount place to France in its ideological cosmography. The concept of everlasting France, of her “mission”, of the part she could play on ... [more ▼]

The French-speaking right wing in Belgium has always granted a paramount place to France in its ideological cosmography. The concept of everlasting France, of her “mission”, of the part she could play on the international scene are topics wondered about constantly in intellectual and middle-class circles. The thirties and mostly the Popular Front era provide the Conservatives with a splendid opportunity to describe the future of their cultural icon with awe: the more the international context is threatening, the more France seems to have become fragile, isolated and going down the slope. Using the news given by the national papers or the widely circulated Parisian press, right-wing Belgians brood, of course, about the eclipse of France’s might, but point chiefly to the moral crisis as its cause. Very often they feel some nostalgia for the “Ancien Régime” and see the origin of the worrying current phenomenon in the hated French Revolution. Lot of factors are intertwined in the definition of the moral decay, but some are particularly highlighted. France is accused to be invaded by foreigners (their Jewish origins and Marxist creeds being stressed); Free-Masonry has a bad influence, as well as laic teaching, perverting youth by its pacifist and internationalist leanings. The degeneration of the religious spirit is lamented on account of its influence on the birth rate: the “Elder Daughter of the Church” gets emptier and emptier, whereas the populations of Fascist Italy and Nazi Germany are blooming. Opposition to parliamentary system is to the fore, as the politico-financial scandals, the governmental instability, the disreputable ways of the politicians themselves contribute all to the idea of the moral crisis. A cultural decline is parallel, with a loss of spirituality in the French society, engulfed in materialism and coarseness. Their stinging attacks, their bombastic style show how deeply rooted is the “decay of France” thesis among Belgian Conservatives. Beyond the French case, they fear a possible contamination of Belgium and the disappearance of their own traditional but vanishing values. Their fears and frights have certainly played a part in the 1936 turn-around towards the so-called Belgian “politique d’indépendance” in foreign affairs. [less ▲]

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See detailObservations sous Anvers, 12 septembre 2002
Boularbah, Hakim ULg; Marquette, V.

in Revue de Droit Commercial Belge [= RDC] = Tijdschrift voor Belgisch Handelsrecht [=TBH] (2003)

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See detailPlmA, a new member of the GntR family, has plasmid maintenance functions in Anabaena sp. strain PCC 7120
Lee, M. H.; Scherer, K.; Rigali, Sébastien ULg et al

in Journal of Bacteriology (2003), 185(15), 4315-4325

The filamentous cyanobacterium Anabaena (Nostoc) sp. strain PCC 7120 maintains a genome that is divided into a 6.4-Mb chromosome, three large plasmids of more that 100 kb, two medium-sized plasmids of 55 ... [more ▼]

The filamentous cyanobacterium Anabaena (Nostoc) sp. strain PCC 7120 maintains a genome that is divided into a 6.4-Mb chromosome, three large plasmids of more that 100 kb, two medium-sized plasmids of 55 and 40 kb, and a 5.5-kb plasmid. Plasmid copy number can be dynamic in some cyanobacterial species, and the genes that regulate this process have not been characterized. Here we show that mutations in an open reading frame, all1076, reduce the numbers of copies per chromosome of several plasmids. In a mutant strain, plasmids pCC7120delta and pCC7120zeta are both reduced to less than 50% of their wild-type levels. The exogenous pDU1-based plasmid pAM1691 is reduced to less than 25% of its wild-type level, and the plasmid is rapidly lost. The peptide encoded by all1076 shows similarity to members of the GntR family of transcriptional regulators. Phylogenetic analysis reveals a new domain topology within the GntR family. PlmA homologs, all coming from cyanobacterial species, form a new subfamily that is distinct from the previously identified subfamilies. The all1076 locus, named plmA, regulates plasmid maintenance functions in Anabaena sp. strain PCC 7120. [less ▲]

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See detailAn Integrated Software for Scantling Optimization and Least Production Cost
Rigo, Philippe ULg

in Ship Technology Research = Schiffstechnik (2003)

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See detailEvolution of time measurement in Astronomy
Biémont, Emile ULg

in Heck, A. (Ed.) Information Handling in Astronomy - Historical Vistas (2003)

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See detailSegregation of the bulk blend fertilizers
Miserque, Olivier; Pirard, Eric ULg

in Esbensen, Kim (Ed.) First World Conference on Sampling and Blending (2003)

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See detailEstimation of genetic parameters for test-day records of French Holstein cows with an AI-REML algorithm
Druet, Tom ULg; Jaffrézic, F.; Ducrocq, V.

in Abstracts from the 2003 ADSA/ASAS joint annual meeting (2003)

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See detailPreliminary data on the crystal chemitry of synthetic fillowite-type phosphates
Hatert, Frédéric ULg; Fransolet, André-Mathieu ULg

in Berichte der Deutschen Mineralogischen Gesellschaft : Beihefte zum European Journal of Mineralogy (2003), 15

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See detailAccuracy of the continuous glucose monitoring system in inpatient and outpatient conditions
Djakouré-Platonoff, C.; RADERMECKER, Régis ULg; Reach, G. et al

in Diabètes & Métabolism (2003), 29

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See detailAdvances in computing strategies for the solution of huge mixed model equations
Ducrocq, V.; Druet, Tom ULg

in Book of Abstracts of the 54th Annual Meeting of the European Association for Animal Production (2003)

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See detailMaking sense of the industrial revolution, English economy and society 1700-1850.
Geerkens Provin, Eric ULg

in Revue Belge de Philologie et d'Histoire (2003), 81(2), 519-521

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See detailDual approach using a variant perimeter constraint and efficient sub-iteration scheme for topology optimization
Zhang, Weihong; Duysinx, Pierre ULg

in Computers & Structures (2003), 81(22-23), 2173-2181

To prevent numerical instabilities associated with the mesh-dependence, checkerboards and grey regions in topology optimization, a variant perimeter-constrained version of the SIMP algorithm is proposed ... [more ▼]

To prevent numerical instabilities associated with the mesh-dependence, checkerboards and grey regions in topology optimization, a variant perimeter-constrained version of the SIMP algorithm is proposed using a smooth and quadratic function. In order to have an efficient implementation and to make sure the strict satisfaction of such an upper-bound perimeter constraint, a diagonal quadratic approximation of the perimeter constraint is used in the construction of each explicit optimization subproblem. The latter is then solved by a dual sub-iteration scheme. Numerical results show that the incorporation of such a sub-iteration scheme leads to a convergent solution without needs of move-limits or artificial control parameters. In addition to this, it is found that successive relaxations of the perimeter constraint by increasing the upper-bound tend to regularize the topology solution and result in a checkerboard free and satisfactory design solution without grey regions. [less ▲]

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See detailThe Tricolor incident: Pathology, age composition and sex ratio of stranded birds
Jauniaux, Thierry ULg; Masure, S.

in meeting report (2003)

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