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
See detailDémographie d'un peuplement de coléoptères troglobies pyrénéens (Genre Speonomus) dans une grotte belge et aspects de leur biologie
Brouwir, Christine ULg

in Bulletin des Chercheurs de la Wallonie (1988), 28

Etude (dans le cadre d'un mémoire en Sciences Zoologiques) d'une transplantation de coléoptères cavernicoles pyrénéens dans une grotte de la région liégeoise (grotte de Ramioul)

Detailed reference viewed: 42 (17 ULg)
Full Text
See detailDémographie du martin pêcheur (Alcedo atthis): incidences climatiques sur le succès reproducteur
Libois, Roland ULg

in Gerfaut (Le) = Giervalk (De) (1994), 84

It is well known that the Kingfisher populations decrease dramatically after a sever winter. The recovery depends on the climatic conditions of the next reproductive seasons. In order to understand the ... [more ▼]

It is well known that the Kingfisher populations decrease dramatically after a sever winter. The recovery depends on the climatic conditions of the next reproductive seasons. In order to understand the mechanism involved in this climatic influence, the fate of more than 500 broods was studied between 1985 and 1993. The study area comprises the river Meuse from Vireux (F,08) downstreams to Huy (B Liège) and the lower part of its main tributaries. The first egg laying date was determined for each brood, eggs were counted, pulli ringed at nest and the adults controlled and ringed when possible. Our main conclusions are i : the beginning of the first clutch is correlated with the thermic conditions of March. ii : the clutches are not synchronised, even on a same watercourse. iii : the egg probuction and the hatching success don't show clear variations between years abd habitat types (river, ponds and small streams) or depending on the clutch rank. iv : the fledged young production depends on how much broods are raised by the different pairs. v : the probability a pair is attempting a thrid brood is function of how early the first clutch is layed, the age of the male (older males settle earlier and are more productive), the habitat quality and the weather conditions (rain, temperature) in May. [less ▲]

Detailed reference viewed: 30 (3 ULg)
Full Text
See detailDemography
Diepart, Jean-Christophe ULg

in Save Cambodia's Wildlife (Ed.) Atlas of Cambodia: Maps on Socio-Economic Development and Environment (2014)

Detailed reference viewed: 10 (0 ULg)
Full Text
See detailLe démon du journalisme
Durand, Pascal ULg; Mombert, Sarah

in Durand, Pascal; Mombert, Sarah (Eds.) Entre presse et littérature. Le Mousquetaire, journal de M. Alexandre Dumas (1853-1857) (2009)

Detailed reference viewed: 75 (29 ULg)
See detailLe Démon du journalisme. Émergence et légitimation du reportage au XIXe siècle
Durand, Pascal ULg

Scientific conference (1997, December 12)

Detailed reference viewed: 5 (0 ULg)
Full Text
See detailDemonen en luchtspiegelingen in de publieke opinie en het Belgische staatsrecht
Behrendt, Christian ULg

Scientific conference (2011, May 23)

Detailed reference viewed: 61 (5 ULg)
Full Text
Peer Reviewed
See detailDemonstrating polymorphic miRNA-mediated gene regulation in vivo: application to the g+6223G->A mutation of Texel sheep.
Takeda, Haruko ULg; Charlier, Carole ULg; Farnir, Frédéric ULg et al

in RNA (New York, N.Y.) (2010), 16(9), 1854-63

We herein describe the development of a biochemical method to evaluate the effect of single nucleotide polymorphisms (SNPs) in target genes on their regulation by microRNAs in vivo. The method is based on ... [more ▼]

We herein describe the development of a biochemical method to evaluate the effect of single nucleotide polymorphisms (SNPs) in target genes on their regulation by microRNAs in vivo. The method is based on the detection of allelic imbalance in RNAs coimmunoprecipitated with AGO proteins from tissues of heterozygous individuals. We characterize the performances of our approach using a model system in a cell culture, and then apply it successfully to prove that the 3'UTR g+6223G-->A mutation operates by promoting RISC-dependent down-regulation of myostatin (MSTN) in skeletal muscle of Texel sheep. [less ▲]

Detailed reference viewed: 6 (2 ULg)
Full Text
Peer Reviewed
See detailDemonstrating the identification of nonlinear vibrating systems to undergraduate students
Dimitriadis, Grigorios ULg; Vio, Gareth Arthur

in International Journal of Mechanical Engineering Education (2007), 35(4), 336-360

The identification of nonlinear dynamic systems is increasingly becoming a necessary part of vibration testing and there is significant research effort devoted to it. However, as the current methodologies ... [more ▼]

The identification of nonlinear dynamic systems is increasingly becoming a necessary part of vibration testing and there is significant research effort devoted to it. However, as the current methodologies are still not suitable for the identification of general nonlinear systems the subject is very rarely introduced to undergraduate students. In this paper, recent progress in developing an expert approach to nonlinear system identification is used in order to demonstrate the subject within the context of an undergraduate course or as an introductory tool for postgraduate students. The demonstration is based around a software package of an Expert System designed to apply systematically a wide range of identification approaches to the system under investigation. It is shown that the software can be used to demonstrate the need for nonlinear system identification, the complexity of the procedure, the possibility of failure and the good chances of success when enough physical information about the system is available. [less ▲]

Detailed reference viewed: 44 (2 ULg)
Peer Reviewed
See detailDemonstration by flow cytometry that CD5+CD8+ cells carry alcelaphine herpesvirus 1 in inoculated rabbits developing malignant catarrhal fever
Dewals, Benjamin G ULg; Gillet, Laurent ULg; Vanderplasschen, Alain ULg

Poster (2005, November 18)

Alcelaphine herpesvirus 1 (AlHV 1), carried by wildebeest (Connochaetes taurinus) asymptomatically, causes malignant catarrhal fever (MCF) when cross species transmitted to a variety of susceptible ... [more ▼]

Alcelaphine herpesvirus 1 (AlHV 1), carried by wildebeest (Connochaetes taurinus) asymptomatically, causes malignant catarrhal fever (MCF) when cross species transmitted to a variety of susceptible species of the Artiodactyla order. MCF is a fascinating disease described as a combination of lymphoproliferative and degenerative lesions. The study of MCF pathogenesis has been impeded by an inability to produce recombinant virus, due mainly to the fact that AlHV 1 becomes attenuated during passage in culture. Here, we have overcome these difficulties by (i) cloning the entire AlHV 1 genome as a stable, infectious and pathogenic bacterial artificial chromosome (BAC), and (ii) by using prokaryotic recombination technology for the production of an AlHV 1 recombinant. Firstly, the AlHV 1 genome was BAC cloned using one insertion site in a region containing no open reading frame. This insertion allowed the production of an AlHV 1 BAC clone stably maintained in bacteria and able to regenerate virions when transfected into permissive cells. BAC derived AlHV 1 virions induced MCF in rabbits comparably to the AlHV 1 wild type (WT) strain. Secondly, a two step mutagenesis procedure in E. coli was used to generate a recombinant strain expressing enhanced-green fluorescent protein (EGFP) as a reporter gene. After reconstitution of recombinant virions into permissive cells and excision of the BAC cassette, flow cytometry analyses were performed to validate the recombinant strain and to investigate the pathogenesis of MCF. The results of these analyses can be summarized as follows: (i) the validity of the EGFP expression cassette as a reporter gene has been demonstrated by in vitro infections; (ii) inoculation of rabbits revealed that the recombinant strain has retained the pathogenicity of its parental strain and that the cell types carrying AlHV-1 in peripheral blood mononuclear cells, lymph nodes and the spleen are mainly CD5+ CD8+ cells. [less ▲]

Detailed reference viewed: 10 (3 ULg)
Full Text
See detailDémonstration de l'existence d'isotopes de l'atome de soufre, au moyen de l'analyse de la structure fine du spectre de résonance des molécules diatomiques S2
Swings, Polydore ULg

in Bulletin de la Classe des Sciences. Académie Royale de Belgique (1931), XVII(8-9), 1095-1097

Detailed reference viewed: 9 (3 ULg)
Full Text
See detailDémonstration de la prise-en-charge du nouveau-né
Battisti, Oreste ULg; Académie américaine de pédiatrie

Learning material (2012)

video reprenant les gestes de prise-en-charge du nouveau-né en salle d'accouchement

Detailed reference viewed: 58 (13 ULg)
Full Text
Peer Reviewed
See detailDemonstration in Vivo That Stromelysin-3 Functions through Its Proteolytic Activity
Noël, Agnès ULg; Boulay, A.; Kebers, F. et al

in Oncogene (2000), 19(12), 1605-12

Stromelysin-3 (ST3), a matrix metalloproteinase (MMP) expressed in aggressive carcinomas, has been shown to promote tumor development in different in vivo experimental models. However, the inability of ... [more ▼]

Stromelysin-3 (ST3), a matrix metalloproteinase (MMP) expressed in aggressive carcinomas, has been shown to promote tumor development in different in vivo experimental models. However, the inability of its mature form to degrade extracellular matrix components casts doubt on whether ST3 functions in vivo as a protease. In this study, we evaluated whether the ST3 tumor-promoting effect could be ascribed to its proteolytic activity and whether this putative protease could be targeted with MMP inhibitors. Catalytically inactive mutant cDNA of human (h) ST3 or mouse (m) ST3 were generated and transfected into MCF7 cells. When injected into nude mice in the presence of matrigel, the mutant-bearing cells did not exhibit the enhanced tumorigenicity elicited by MCF7 cells transfected with wild-type ST3 cDNA. In a second approach, TIMP2 overproduction in MCF7 cells expressing hST3 was induced by retroviral infection. The co-expression of ST3 and TIMP2 failed to enhance the tumorigenicity of MCF7 cells. Notably, matrigel depleted of low-molecular-weight proteins and growth factors failed to promote the tumorigenicity of ST3-expressing MCF7 cells. These findings provide the first in vivo evidence that ST3 is indeed a protease that can modulate cancer progression by remodeling extracellular matrix and probably by inducing it to release the necessary microenvironmental factors. Thus, ST3 represents an interesting target for specific MMP inhibition. [less ▲]

Detailed reference viewed: 16 (4 ULg)
Peer Reviewed
See detailDemonstration of anti-laminin antibodies in the serum of healthy subjects
Bernard, A.; Passelecq, B.; Foidart, Jean-Michel ULg et al

in Biomedicine & Pharmacotherapy (1987), 41(4), 183-6

Antibodies directed against laminin, a glycoprotein of basement membranes, have been sought for in the sera of 347 healthy subjects by a method relying on the agglutination of laminin-coated latex ... [more ▼]

Antibodies directed against laminin, a glycoprotein of basement membranes, have been sought for in the sera of 347 healthy subjects by a method relying on the agglutination of laminin-coated latex particles. Fifty-five subjects (15.9%) hae been found to be positive, 37 with a titre of 2, 14 with a titre of 4 and 4 with a titer of 8. Applied to 106 patients whose a renal biopsy had been examined by immunofluorescence, the test yielded positive results in 91% of patients with linear deposits as compared to 10.3 and 15.4% respectively in patients presenting with and without granular deposits along the glomerular basement membrane. The titers in anti-laminin antibodies observed in these patients ranged from 2 to 8. The discovery of circulating anti-laminin antibodies in serum from subjects without clinical or subclinical sign of renal impairment rises several questions regarding the pathogenicity of these auto-antibodies and their possible association with genetic or environmental factors. [less ▲]

Detailed reference viewed: 1 (0 ULg)
Full Text
Peer Reviewed
See detailDemonstration of generalized infection with caprine herpesvirus 1 diagnosed in an aborted caprine fetus by PCR
Keuser, V.; Gogev, S.; Schynts, F. et al

in Veterinary Research Communications (2002), 26(3), 221-226

Detailed reference viewed: 1 (0 ULg)
Peer Reviewed
See detailDemonstration of laminin, a basement membrane glycoprotein, in routinely processed formalin-fixed human tissues.
Ekblom, P.; Miettinen, M.; Rapola, J. et al

in Histochemistry (1982), 75(3), 301-7

Laminin was demonstrated by immunoperoxidase and immunofluorescence staining in sections of normal human tissues fixed in formalin and routinely processed in paraffin. Exposure of the sections to a ... [more ▼]

Laminin was demonstrated by immunoperoxidase and immunofluorescence staining in sections of normal human tissues fixed in formalin and routinely processed in paraffin. Exposure of the sections to a solution of pepsin (Burns et al. (1980) Histochemistry 67:73-78) revealed the antigenicity of this basement membrane glycoprotein. Sections from paraffin blocks stored for years at room temperature could be stained with this procedure. Normal human tissues, developing fetal tissues and tumors could be stained with this method. The staining patterns were similar to those seen in unfixed frozen sections. It thus appears that basement membrane components can be detected by immunohistological means from routinely processed histological samples, once the sections are pretreated with proteases. Staining for laminin could be used in embryonic studies and in histopathology to study the relation of cells to basement membranes and for the visualization of normal and abnormal vascularization. [less ▲]

Detailed reference viewed: 13 (0 ULg)
Peer Reviewed
See detailDemonstration of neuronotoxic activity in the cerebrospinal fluid of severe head injured patients
Lefebvre, P. P.; Rigo, J. M.; Leprince, Pierre ULg et al

in Agressologie : Revue Internationale de Physio-Biologie et de Pharmacologie Appliquées aux Effets de l'Agression (1988), 29(4), 241-242

Detailed reference viewed: 13 (3 ULg)
Peer Reviewed
See detailDemonstration of somatogenic receptors in bovine corpus luteum
Beckers, Jean-François ULg; Wouters-Ballman, P; Donnay, I et al

in Proceedings of the 11th International Congress on Animal Reproduction and Artificial Insemination (1988)

Detailed reference viewed: 11 (1 ULg)
Peer Reviewed
See detailDemonstration of the expression of CD95 ligand transcript and protein in human placenta
Zorzi, Willy ULg; Thellin, Olivier ULg; Coumans, Bernard ULg et al

in Placenta (1998), 19(4), 269-277

Tolerance of the fetal allograft enables the human conceptus to implant itself into the maternal uterus and survive and grow there. This tolerance phenomenon remains largely obscure, notably because it ... [more ▼]

Tolerance of the fetal allograft enables the human conceptus to implant itself into the maternal uterus and survive and grow there. This tolerance phenomenon remains largely obscure, notably because it appears to be controlled by multiple mechanisms. CD95 ligand (CD95-L), which can trigger death of CD95-positive cells by apoptosis, may participate in inducing anti-fetus-sensitized CD95-positive T lymphocytes to enter apoptosis. Using immunohistochemistry (first trimester and term placentae), FAGS assays (term placenta) and RT-PCR assays (term placenta), the presence of CD95-L protein and mRNA has been shown in crude placental tissue preparations and isolated placental cells. Among the latter, CD95-L expression was detected in trophoblastic cells, fetal blood cells (mRNA only) and also the Hofbauer macrophages. No CD95-L was detected in fibroblasts or fetal endothelial cells. Thus trophoblastic cells, Hofbauer macrophages, and perhaps also fetal blood cells could form a sequential barrier blocking maternal activated defence cells bearing CD95 molecules. (C) 1998 W. B. Saunders Company Ltd. [less ▲]

Detailed reference viewed: 35 (9 ULg)