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See detailKinetics of solvent addition on electrosprayed ions in an electrospray source and in a quadrupole ion trap
Gabelica, Valérie ULg; Lemaire, David; Laprévote, Olivier et al

in International Journal of Mass Spectrometry (2001), 210/211

Benzylpyridinium cations readily fragment in the electrospray source by loss of pyridine to give benzyl cations (M-79). The full-scan spectra obtained with some instruments also show, in addition, an m/z ... [more ▼]

Benzylpyridinium cations readily fragment in the electrospray source by loss of pyridine to give benzyl cations (M-79). The full-scan spectra obtained with some instruments also show, in addition, an m/z (M-38) peak corresponding to the addition of acetonitrile, being present in the solvent mixture, on the benzyl cations. Here we report that the addition reaction can occur in the source region of electrospray mass spectrometry instruments, and in a quadrupole ion trap. The kinetics of acetonitrile addition was monitored in an ion trap, acetonitrile being provided by leakage from the source, through the heated capillary. For benzyl ions with different substituents, the addition kinetics has been found positively correlated with the Brown parameter sigma+ of the benzyl radical, and therefore with the effective charge density on the alpha-carbon atom of the benzyl ion. This is consistent with the Langevin or average-dipole-orientation (ADO) theory of ion–molecule reaction kinetics. [less ▲]

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See detailKinetics of the hydrolysis of polysaccharide galacturonic acid and neutral sugars chains from flaxseed mucilage
Happi Emaga, Thomas; Rabetafika, Holy-Nadia ULg; Blecker, Christophe ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), (2012 16(2)), 139-147



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See detailKinetics of the hydrolysis of polysaccharide galacturonic acid and neutral sugars chains from flaxseed mucilage
Happi Emaga, Thomas; Rabetafika, Holy-Nadia ULg; Blecker, Christophe ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2012), 16(2), 139-147

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See detailKinetochore KMN network gene CASC5 mutated in primary microcephaly.
Genin, Anne; Desir, Julie; Lambert, Nelle et al

in Human Molecular Genetics (2012), 21(24), 5306-17

Several genes expressed at the centrosome or spindle pole have been reported to underlie autosomal recessive primary microcephaly (MCPH), a neurodevelopmental disorder consisting of an important brain ... [more ▼]

Several genes expressed at the centrosome or spindle pole have been reported to underlie autosomal recessive primary microcephaly (MCPH), a neurodevelopmental disorder consisting of an important brain size reduction present since birth, associated with mild-to-moderate mental handicap and no other neurological feature nor associated malformation. Here, we report a mutation of CASC5 (aka Blinkin, or KNL1, or hSPC105) in MCPH patients from three consanguineous families, in one of which we initially reported the MCPH4 locus. The combined logarithm of odds score of the three families was >6. All patients shared a very rare homozygous mutation of CASC5. The mutation induced skipping of exon 18 with subsequent frameshift and truncation of the predicted protein. CASC5 is part of the KMN network of the kinetochore and is required for proper microtubule attachment to the chromosome centromere and for spindle-assembly checkpoint (SAC) activation during mitosis. Like MCPH gene ASPM, CASC5 is upregulated in the ventricular zone (VZ) of the human fetal brain. CASC5 binds BUB1, BUBR1, ZWINT-1 and interestingly it binds to MIS12 through a protein domain which is truncated by the mutation. CASC5 localized at the equatorial plate like ZWINT-1 and BUBR1, while ASPM, CEP152 and PCTN localized at the spindle poles in our patients and in controls. Comparison of primate and rodent lineages indicates accelerated evolution of CASC5 in the human lineage. Our data provide strong evidence for CASC5 as a novel MCPH gene, and underscore the role of kinetochore integrity in proper volumetric development of the human brain. [less ▲]

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See detailThe kinetoplast ultrastructural organization of endosymbiont-bearing trypanosomatids as revealed by deep-etching, cytochemical and immunocytochemical analysis.
Cavalcanti, Danielle Pereira; Thiry, Marc ULg; de Souza, Wanderley et al

in Histochemistry & Cell Biology (2008), 130(6), 1177-85

The endosymbiont-bearing trypanosomatids present a typical kDNA arrangement, which is not well characterized. In the majority of trypanosomatids, the kinetoplast forms a bar-like structure containing ... [more ▼]

The endosymbiont-bearing trypanosomatids present a typical kDNA arrangement, which is not well characterized. In the majority of trypanosomatids, the kinetoplast forms a bar-like structure containing tightly packed kDNA fibers. On the contrary, in trypanosomatids that harbor an endosymbiotic bacterium, the kDNA fibers are disposed in a looser arrangement that fills the kinetoplast matrix. In order to shed light on the kinetoplast structural organization in these protozoa, we used cytochemical and immunocytological approaches. Our results showed that in endosymbiont-containing species, DNA and basic proteins are distributed not only in the kDNA network, but also in the kinetoflagellar zone (KFZ), which corresponds to the region between the kDNA and the inner mitochondrial membrane nearest the flagellum. The presence of DNA in the KFZ is in accordance with the actual model of kDNA replication, whereas the detection of basic proteins in this region may be related to the basic character of the intramitochondrial filaments found in this area, which are part of the complex that connects the kDNA to the basal body. The kinetoplast structural organization of Bodo sp. was also analyzed, since this protozoan lacks the highly ordered kDNA-packaging characteristic of trypanosomatid and represents an evolutionary ancestral of the Trypanosomatidae family. [less ▲]

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See detailThe king's most eloquent campaigner... Emile de Laveleye, Leopold II and the creation of the Congo Free State.
Vandersmissen, Jan ULg

in Revue Belge d'Histoire Contemporaine = Belgisch Tijdschrift voor Nieuwste Geschiedenis (2011), XLI(1-2), 7-57

The “Belle Epoque” saw the revival of the colonial idea in new forms. A second European colonization wave washed over Africa. King Leopold II unfolded his activities in Congo from 1876 onwards. There, his ... [more ▼]

The “Belle Epoque” saw the revival of the colonial idea in new forms. A second European colonization wave washed over Africa. King Leopold II unfolded his activities in Congo from 1876 onwards. There, his efforts to develop a so-called “philanthropic” enterprise soon evolved in a process of state formation, overshadowed by intrigues and tensions that were a consequence of colonial competition between the Western powers. Only a decade later, at the Berlin Conference of 1885, a definite arrangement was adopted. Everywhere in Europe, a disputed transition was made from liberal to more conservative ways of government. Of course this tension field also dominated intellectual life. There was an intense debate between partisans of colonialism and supporters of worldwide free trade. For the development of his colonial doctrine Leopold II had been inspired by intellectuals that supported economic expansionism. Most of them were active in the field of economic geography. But the King also searched for support in other academic circles and mobilized Emile de Laveleye (1822-1892), one of Europe’s brightest minds, to join him in his quest for the most adequate economic, social and political model of a future state in the heart of Africa. In his books, articles and pamphlets, the liberal minded political economist de Laveleye showed himself an unshakable opponent of colonization and imperialism. However, in the period 1875-1885 – a decade so crucial for Congo – a surprising intellectual rapprochement between de Laveleye and Leopold II was established. For a certain time, this competent man of science advised the King, putting into royal service an intellectual network of European range. This paper investigates how, in the complex and constantly evolving public discussion about Congo, two apparently opposing minds attracted each other. We focus on de Laveleye’s important pleas for a “neutral and international formula” that would place Leopold II in a conflicting situation with Portugal and France. This study shows that, in the years preceding the Berlin Conference, de Laveleye got actively involved in a carefully orchestrated European media campaign in support of Leopold’s initiative. It was there that his intellectual circle became extremely useful and was fully implicated. His contacts among experts of international law contributed to the important discussions about Congo’s juridical status. De Laveleye’s colleague Sir Travers Twiss, as well as the influential Institut de droit international, of which de Laveleye had been one of the founders, entered the debate zone and took positions which were favorable for Leopold’s project. With this new approach, our paper also aims to give insight in the way Leopold II transformed his own reasoning into a more authoritative set of practical standards which were shared by an intellectual elite. [less ▲]

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See detailKinking of the Internal Carotid Artery: Clinical Significance and Surgical Management
Van Damme, Hendrik ULg; Gillain, Daniel ULg; Desiron, Quentin ULg et al

in Acta Chirurgica Belgica (1996), 96(1), 15-22

The authors report on 62 surgical corrections for kinking of the internal carotid artery during a 13-year period (1980-1993). This represents 2.8% of all carotid operative procedures (n = 2188) in the ... [more ▼]

The authors report on 62 surgical corrections for kinking of the internal carotid artery during a 13-year period (1980-1993). This represents 2.8% of all carotid operative procedures (n = 2188) in the same period. It always concerned a significant (< 60 degrees) angulation of a redundant internal carotid artery, that in all but 3 cases was associated with atherosclerotic involvement of the carotid bifurcation. The indication to surgery included transient hemispheric or ocular ischaemia in 25.5% of cases, a regressive neurologic deficit in 8%, a minor stroke in 3%, a stroke in evolution in 11%, and non-lateralized cerebral ischaemia in 21%. In 19 patients (31%) it concerned an asymptomatic high degree stenosis. The surgical technique consisted in carotid transposition-reimplantation after eversion endarterectomy in 37 cases, in posterior transverse plication with patch angioplasty in 20 cases, and in segmental excision with venous interposition graft in 5 cases. There was one postoperative death. The morbidity include one ipsilateral non-fatal stroke and 3 transient ischaemic attacks. A complete long-term follow-up (mean duration 3.4 years) is available for 57 patients. The late incidence of stroke is 1.5% per year. The 5-year survival attains 67%. These long-term results are comparable to the outcome of standard endarterectomy in the same institution. The authors discuss the indication, techniques, and outcome of surgical correction of kinked internal carotid artery. They recommend a shortening procedure, often associated with endarterectomy for severely kinked vessels (angulation 60 degrees or less), symptomatic or not. [less ▲]

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See detailKino-Tanz. L'art chorégraphique du cinéma
Tomasovic, Dick ULg

Book published by Presses Universitaires de France (2009)

Et si le cinéma était d'abord un art chorégraphique ? Depuis toujours, sa préoccupation principale était l'invention de nouveaux agencements de corps et la recherche de nouveaux montages de mouvements ... [more ▼]

Et si le cinéma était d'abord un art chorégraphique ? Depuis toujours, sa préoccupation principale était l'invention de nouveaux agencements de corps et la recherche de nouveaux montages de mouvements. Mais l'idéologie de la mise en scène, venue du théâtre, a rendu cette préoccupation invisible. Pour la rendre à nouveau vivante, c'est toute lhistoire du cinéma qu'il faut relire à l'aune de la chorégraphie : passer du Kino-Glaz (« Ciné-il ») de Vertov à un nouveau Kino-Tanz (« Ciné-Corps » ou « Ciné-Danse »). De Fernand Léger à Michel Gondry, de Georges Méliès à David Lynch, de Pinocchio à Gene Kelly ou de Norman McLaren à Quentin Tarantino, le cinéma n'a jamais cessé de danser. Cest ce que démontre Dick Tomasovic, le plus original des théoriciens du cinéma d'aujourdhui, en onze chapitres qui sont eux-mêmes onze pas de deux, à la fois sidérants et aériens, où s'expérimentent tous les passages de l'idéologie de la mise en scène à l'idéal de la chorégraphie. Il y propose un vocabulaire inouï, bouleversant la manière que nous avions de regarder les films : un vocabulaire qui met au premier plan le rythme et la cadence, le flux et la fluidité, la reprise et la répétition, la mémoire musculaire, la transe et l'extase, le solo et le spectateur, etc. [less ▲]

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See detailKinshasa en proie à l’érosion en ravine : inventaire cartographique et impact socioéconomique
Makanzu, Fils; Ozer, Pierre ULg; Moeyersons, Jan et al

in Colloque international "Géomatique et gestion des risques naturels" en hommage au Professeur André Ozer - Livre de résumés (2012)

Kinshasa, l’une des grandes villes de l’Afrique subsaharienne, a vu sa population passer de 404173 habitants en 1957 à près de 8 millions d’habitants en 2007, soit une augmentation d’environ 20 fois en 50 ... [more ▼]

Kinshasa, l’une des grandes villes de l’Afrique subsaharienne, a vu sa population passer de 404173 habitants en 1957 à près de 8 millions d’habitants en 2007, soit une augmentation d’environ 20 fois en 50 ans seulement. La ville s’est entre-temps agrandie, s’étalant de 94 à 443 km² au cours de la même période. A l’aide de la télédétection et d’un SIG, les ravins d’au moins 5 mètres de large ont été cartographiés à partir d’un couple stéréoscopique SPOT 2006/2007 dans la haute ville de Kinshasa. Cet inventaire a permis la détermination de 308 ravins totalisant une longueur cumulée de 95 km qui occupent une superficie de 2 km² et dont la profondeur moyenne et la largeur moyenne sont respectivement de 7 et 21 mètres. La densité de ravinement est de 0,4 km/km². En imperméabilisant le sol et en concentrant de grandes quantités d’eau de ruissellement, l’urbanisation a modifié le drainage naturel du sol et a augmenté l’aléa dans cette région où il existait déjà. Elle serait donc la cause principale de l’érosion en ravine qui déchire les versants sableux de Kinshasa. [less ▲]

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See detailKIR-ligand incompatibility in the Graft-versus-host direction improves outcome after umbilical cord blood transplantation for acute leukemia
Willemze, R.; Rodrigues, C. A.; Labopin, M. et al

in Leukemia : Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K (2009), 23

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See detailKiss Me, I'm Jewish : Sarah Glidden ramène la balle au centre
Munos, Delphine ULg

Article for general public (2013)

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See detailKisspeptin and neuronal nitric oxide signaling are important in female sexual behavior
Hellier, Vincent ULg; Bakker, Julie

Poster (2014, January 27)

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See detailKisspeptin-immunoreactivity changes in a sex- and hypothalamic-region-specific manner across rat postnatal development.
Desroziers, Elodie ULg; Mikkelsen, J. D.; Duittoz, A. et al

in Journal of Neuroendocrinology (2012), 24(8), 1154-65

Kisspeptins are potent secretagogues of gonadotrophin-releasing hormone, playing a key role in puberty onset. These peptides are produced by distinct neuronal populations of the hypothalamus located in ... [more ▼]

Kisspeptins are potent secretagogues of gonadotrophin-releasing hormone, playing a key role in puberty onset. These peptides are produced by distinct neuronal populations of the hypothalamus located in the rostral periventricular area of the third ventricle (RP3V) and arcuate nucleus (ARC). The present immunohistochemical study aimed to determine the spatiotemporal onset of kisspeptin-immunoreactivity (-IR) in the neonatal hypothalamus of male and female rats and to evaluate changes in kisspeptin-IR around puberty. Kisspeptin-IR cells and fibres could be detected from the day of birth in the ARC of both males and females. At this stage, only females displayed some kisspeptin-IR fibres in the RP3V. From postnatal day 7 to adulthood, males displayed lower levels of kisspeptin-IR than females in both regions. During infancy, kisspeptin-IR fibre density in the female decreased in the ARC, whereas it increased in the RP3V. A sex-independent decline in RP3V kisspeptin-IR fibre density was observed in the juvenile, followed by a peripubertal increase in RP3V and ARC kisspeptin-IR. These peripubertal increases in kisspeptin-IR occurred at different timings dependent on sex and region. In females specifically, the increase in kisspeptin-IR fibre density occurred first in the ARC and later in the RP3V under constant levels of circulating oestradiol. In conclusion, the present study highlights the expression of hypothalamic kisspeptins soon after birth, as well as the neonatal establishment of a strong and persisting sex difference in ARC kisspeptin-IR in rats. Moreover, a female-specific desynchronisation of the ARC and RP3V was observed with respect to the increase in kisspeptin-IR fibre density around puberty, which was not related to peripubertal variations in circulating oestradiol. [less ▲]

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See detailKistemaeckers
Durand, Pascal ULg

in Fouché, P.; Péchoin, D.; Schuwer, Ph. (Eds.) Dictionnaire encyclopédique du livre (2005)

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See detailKit for the sequential measurement of (1) the enzymatically active fraction and (2) the total amount of an enzyme
Serteyn, Didier ULg; Deby-Dupont, Ginette; Franck, Thierry ULg et al

Patent (2010)

The present invention is related to a combined kit for sequential measurement of the enzymatically active fraction and total amount of an enzyme [(such as myeloperoxidase (MPO)] in a sample, and that find ... [more ▼]

The present invention is related to a combined kit for sequential measurement of the enzymatically active fraction and total amount of an enzyme [(such as myeloperoxidase (MPO)] in a sample, and that find improved applications in veterinary and human health fields. [less ▲]

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See detailKitsch bei Suhrkamp
Pontzen, Alexandra ULg

in Gruber, Bettina (Ed.) Linker Kitsch. Bekenntnisse, Ikonen, Gesamtkunstwerke. (2012)

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See detailKivuguto traditional fermented milk and the dairy industry in Rwanda. A review
Karenzi, Eugène ULg; Mashaku, Albert; Nshimiyimana, Alphonse M. et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(2), 383-391

Traditional methods of fermenting milk involve the use of indigenous microorganisms, leading to the production of a variety of tastes in fermented milk products. Kivuguto is a fermented milk product ... [more ▼]

Traditional methods of fermenting milk involve the use of indigenous microorganisms, leading to the production of a variety of tastes in fermented milk products. Kivuguto is a fermented milk product, which is popular in Rwanda. Kivuguto is produced by traditional spontaneous acidification of raw milk by a microflora present both on utensils and containers used for milk preservation and in the near environment of cattle. Thus, this method does not allow the shelf stability of the product. Faced to such a situation, modern dairies now produce fermented milk and other dairy products using exotic strains. The main objectives of this paper are firstly, to provide documentation on the traditional production of kivuguto, as well as its by-products, and secondly, to describe the current situation of the dairy industry in Rwanda. [less ▲]

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See detailKlägliches Leiden: Peinlichkeit
Pontzen, Alexandra ULg

Scientific conference (2009, June)

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See detailKlanknabootsingen in strips
Meesters, Gert ULg

in Nederlands van nu (1997), 45(3), 82-83

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