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See detailEtude par spectrométrie de masse du comportement de complexes organométalliques lors de l'activation par collision
Collette, Caroline ULg

Master's dissertation (1995)

The study by mass spectrometry with electrospray ionization of organometallic complexes was performed in order to elucidate the mechanism of reduction of ions in the gas phase that occurs in the region of ... [more ▼]

The study by mass spectrometry with electrospray ionization of organometallic complexes was performed in order to elucidate the mechanism of reduction of ions in the gas phase that occurs in the region of the cone of the electrospray source. The prospects of this work are a better understanding of the mechanisms of fragmentation of ions in the gas phase in the area of the source and the opportunity to study the reactions of these complexes in the absence of solvent. [less ▲]

Detailed reference viewed: 23 (4 ULg)
See detailEtude par spectrométrie Mössbauer de la distribution du fer dans les fractions minéralogiques séparées de roches lunaires rapportées par Apollo 12
Duchesne, Jules; Depireux, Joseph ULg; Gérard, A. et al

in Bulletin de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique. Sciences (1971), 5e série, v. 4(LVII), 1204-1211

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See detailEtude par spectroscopie de génération de la fréquence somme de l'interface méthanol-platine
Vidal, F.; Busson, B.; Six, C. et al

in J. Phys. IV France (2002), 12

La spectroscopie vibrationnelle non-linéaire par génération de la fréquence somme est une sonde particulièrement adaptée à l'étude des interfaces entre milieux denses. Cette technique a été appliquée à l ... [more ▼]

La spectroscopie vibrationnelle non-linéaire par génération de la fréquence somme est une sonde particulièrement adaptée à l'étude des interfaces entre milieux denses. Cette technique a été appliquée à l'étude de l'interface électrochimique monocristal de platine/solution acide de méthanol, système qui constitue un modèle de pile à combustible, dispositif où l'énergie chimique est directement convertie en énergie électrique. Les propriétés vibrationnelles dépendent fortement de l'orientation cristallographique de l'électrode de platine. [less ▲]

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See detailEtude paysagère de la commune de Clavier
Vauchel, Bernadette ULg

Book - Société Nationale Terrienne (1979)

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See detailEtude phytosociologique de la fagne Wallonne et de la fagne de Cléfay (structure et évolution des associations végétales à sphaignes dans les Hautes-Fagnes de Belgique).
Streel, Maurice ULg

in Académie Royale des Sciences, des Lettres et des Beaux Arts de Belgique. Classe des Sciences. Mémoires. Collection in-4o (1959), XXXI(1), 104

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See detailEtude phytosociologique et biochimique de la tourbière de Weywertz. Etude de la tourbe.
Deuse, P; Ramaut, J; Streel, Maurice ULg

in Bulletin de la Société Royale des Sciences de Liège (1957), 26(6), 325-340

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See detailEtude phytosociologique et biochimique de la tourbière de Weywertz. Etude de la végétation
Deuse, P; Ramaut, J; Streel, Maurice ULg

in Bulletin de la Société Royale des Sciences de Liège (1957), 26(5), 253-276

Detailed reference viewed: 17 (0 ULg)
See detailEtude pilote : Case management intégré dans les hôpitaux belges.
de Froidmont, C.; Dejace, Alain ULg; Englebert, L. et al

Report (1999)

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See detailEtude pilote pour le developpement d'un registre de l'infarctus du myocarde en region liegeoise (Belgique)
Paul, I.; Bilge, A.; Bolly, F. et al

in Revue d'Epidémiologie et de Santé Publique (2001), 49(5), 423-9

BACKGROUND: In 1998, a permanent registry of myocardial infarction was developed in the Liege area (Belgium) to provide updated, exhaustive and validated data on the morbidity and mortality from ... [more ▼]

BACKGROUND: In 1998, a permanent registry of myocardial infarction was developed in the Liege area (Belgium) to provide updated, exhaustive and validated data on the morbidity and mortality from cardiovascular causes, to define the patients' profile, to identify myocardial infarction therapeutic strategies and to complete and make comparisons with data collected in other parts of the country through methodologically identical registers. METHODS: All acute coronary events lethal or non lethal among individuals from both genders aged from 25 to 69 years and living in the area were registered according to the methodology developed for the MONICA project (Multinational Monitoring of Trends and Determinants in Cardiovascular Diseases) of WHO. The three main selected data sources were: death certificates, general practitioners and cardiologists, hospitals. The events were categorised according to symptoms, cardiac enzymes, electrocardiogram, history of chronic ischaemic heart disease and necropsy findings. RESULTS: The coronary-event rates were 283/100,000 in men and 102/100,000 in women. The case fatality rate, 28 days after the onset of the symptoms, was 30.6% for men and 36.2% for women, and 77.5% of deaths occurred in the first 24 hours after the onset of the symptoms. CONCLUSION: The development of a myocardial infarction register at a regional level requires the involvement of all health professionals dealing with that pathology. Such register has valuable public health interests, providing exhaustive and validated data on the pathology and its evolution as well as useful information for improving therapeutic strategies and developing adapted preventive measures. [less ▲]

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See detailEtude pilote relative à l'évaluation du risque sismique pour la ville de Liège
Plumier, André ULg; Degée, Hervé ULg

in Actes des journées APS-AFPS 2008 (2009)

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See detailEtude pluridisciplinaire de l'implication bactérienne du phénomène de blanchissement des coraux Scléractiniaires (Indo-Pacifique)
Ladrière, Ophélie ULg

Doctoral thesis (2012)

Given the increasing number of coral diseases linked to the growing impact of global warming and human activities, the present research focused on the phenomenon of coral bleaching. The Scleractinian ... [more ▼]

Given the increasing number of coral diseases linked to the growing impact of global warming and human activities, the present research focused on the phenomenon of coral bleaching. The Scleractinian Cnidaria are the essential building blocks of the coral reef ecosystem, whose ecological, economic and societal interests are demonstrated. The symptom of bleaching has multiple and complex causes that are still unclear. It corresponds to the rupture of the mutualistic symbiosis between the coral and microalgae, called zooxanthellae, and can causes death of many corals. An assumption underlying this phenomenon suggests that corals are bleaching by the action of pathogenic bacteria, penetrating inside the coral tissues. However, this hypothesis seems quite controversial and the present work attempts to elucidate a set of issues surrounding this controversy. To do this, a multidisciplinary approach combining ecology (general and microbial) and molecular biology has been established through field and experimental studies. Using electron microscopy, morphological criteria were established to characterize the status of coral bleaching. Furthermore, this technique was also used to identify different types of bacteria within coral tissues. Their presence and their role within the coral holobiont were discussed. Several molecular biology techniques (DGGE, sequencing) have provided evidences on the non-specificity of bacterial communities associated with corals species, sampling sites and different status of bleaching. This non-specificity shows that the functions performed by bacteria in the coral holobiont could be the result of opportunistic bacteria from various taxonomic groups. The presence of Cyanobacteria in some corals, detected by microscopy and confirmed by molecular techniques, raises the question about their role within the holobiont and the alternative pathway that they offer for the symbiotic host compared with zooxanthellae. The issues of potential competition between these different symbionts or the benefit of this symbiotic diversity, in case of bleaching event, remain open. Transcriptomic genetics was used to study the response of coral facing a bacterial stress in different experimental conditions of temperature determining the expression of bacterial virulence. Studying the expression profile of genes involved in immunity of the coral allowed to understand the sequence of reactions and changes in resource allocation in response to different stages of bacterial infection. On this experiment, the first antimicrobial peptide of Scleractinia, the damicornin, has been identified and characterized. All these results suggest that the context of changes in environmental parameters is more important than the presence of pathogens itself. The bacteria would then act as an aggravating factor in a situation where the coral, already weakened and stressed, cannot defend itself adequately. Finally, the observation of an increase in cnidocytes in a coral species that has undergone bleaching, suggests that some coral species are able to shift to a more heterotrophic nutritional regime adapting to the lack of inputs caused by the significant loss of zooxanthellae. This would favor the resilience of coral. [less ▲]

Detailed reference viewed: 83 (22 ULg)