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 detailEffets du comportement dynamique des structures de bâtiments en acier suite à la ruine accidentelle de l'une des colonnes portantes
Coméliau, Ludivine ULiege

Master's dissertation (2009)

Since the Ronan Point tower partially collapsed in London in 1968, design codes of several countries of Western Europe and North America include notions of progressive collapse and robustness. Rules in ... [more ▼]

Since the Ronan Point tower partially collapsed in London in 1968, design codes of several countries of Western Europe and North America include notions of progressive collapse and robustness. Rules in this domain are intended to ensure the global integrity of structures suffering exceptional actions, and thus to avoid that a local damage associated with an extreme loading event leads to the collapse of the whole building or of a great part of it. Particularly, Eurocode 1 demands that structures be designed and built so that they wouldn’t suffer disproportionate damage compared with the initial cause : explosion, impact or consequences of human mistakes. Unfortunately, few researches have been undertaken in the domain of robustness so far, aiming to provide engineers with design strategies relatively simple in use. However, investigations have been recently conducted at ULg regarding the behaviour of building frames with several bays and storeys suffering the loss of a column further to an unspecified accidental event. The loss of a column implies redistributions of forces into the structure and the development of alternative load paths which were initially unforeseen but could lead to a final stable state provided some favourable conditions are fulfilled. These studies resulted in the development of simplified analytical methods permitting the prediction of the structural response assuming static behaviour. This hypothesis can be justified in some circumstances, for instance when the destruction of the column is associated with the very progressive diminution of the material mechanical characteristics under the effects of a localised fire. It isn’t yet valid in case of dynamic actions such as impacts or explosions. In parallel with the researches conducted at ULg, investigations were carried out at London Imperial College considering the instantaneous loss of a column and taking the associated dynamics effects into account. Amongst other things, a procedure was developed providing the maximum displacement resulting from the sudden loss of a column on the basis of the only knowledge of the static response. The present work aims to go further into the knowledge of the dynamic behaviour of building frames suffering the loss of a column. To achieve this goal, the ruin scenario considered will still be the loss of a column but it will be neither static nor instantaneous any more. Instead, the ruin will be considered taking some variable time. In particular, the influence of the latter on the structural response will be highlighted. First, the dynamic behaviour of an elementary substructure will be studied in detail. The time evolution of the displacement, the internal forces and the plastification will be described. Then, the response of a global frame further to the loss of a column will be investigated. Eventually, on the basis of the substructure, the dynamic amplification will be attempted to quantify as a function of non-dimensional parameters characterising the system geometrical and mechanical properties. [less ▲]

Detailed reference viewed: 463 (61 ULiège)
Full Text
Peer Reviewed
See detailEffets du froid sur les stades précoces de développement du maïs (Zea mays)
Riva-Roveda, Laetitia ULiege; Périlleux, Claire ULiege

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2015), 19(1), 42-52

Detailed reference viewed: 47 (17 ULiège)
Full Text
Peer Reviewed
See detailEffets du glimepiride (Amarylle) chez le patient diabétique de type 2: Résultats de l'étude belge RECORD en médecine générale.
Radermecker, Régis ULiege; Scheen, André ULiege

in Revue Médicale de Liège (2006), 61(5-6), 423-9

Sulfonylureas still have a key place in the treatment of type 2 diabetes, especially those of the last generation. This article describes the results of a post-marketing study (RECORD, Routine Evaluation ... [more ▼]

Sulfonylureas still have a key place in the treatment of type 2 diabetes, especially those of the last generation. This article describes the results of a post-marketing study (RECORD, Routine Evaluation Conducted On Registered Drugs project) focusing on glimepiride (Amarylle). This study investigated the efficacy, safety and tolerance of glimepiride in primary care. It was performed in Belgium and concerned 1.012 patients with type 2 diabetes followed for 6 months by 204 general practitioners. Almost two thirds of recruited patients already received oral glucose-lowering agents whereas one third were naive patients. This open study showed a progressive decrease of fasting blood glucose and glycated haemoglobin (HbA1c) levels with glimepiride (titrated from 1 to 6 mg/day, as needed, with a mean daily dose of 2,6 mg), together with a simultaneous slight reduction in body weight and without any increase of the hypoglycaemic risk. Primary care physicians considered both the efficacy and tolerance of glimepiride as good or very good in more than 90% of cases. The value of such a study is to provide valuable information about glimepiride use in real life, a condition that may differ from strict follow-up imposed in randomised controlled clinical trials. [less ▲]

Detailed reference viewed: 161 (4 ULiège)
Peer Reviewed
See detailEffets du massage par appareil semi automatique : Etude scintigraphique et tonométrique
Crielaard, Jean-Michel ULiege; Vanderthommen, Marc ULiege; Dauchat, L. et al

in Kinésitherapie, les Annales (1996), 23(3), 102-105

Detailed reference viewed: 62 (4 ULiège)
Full Text
See detailEffets du mode d’extraction des huiles essentielles sur l’efficacité de l’inhibition de la corrosion
ramdani, M.; Benchat, N.; Amhamdi, H. et al

Poster (2010)

Detailed reference viewed: 145 (2 ULiège)
Peer Reviewed
See detailEffets du moment de regroupement par rapport au début du cycle alimentaire sur le bien-être de truies en groupes dynamiques et alimentées au Distributeur Automatique de Concentré (DAC)
Remience, Virginie; Wavreille, José; Cloet, D. et al

in 39èmes Journées de la Recherche Porcine (2007)

Detailed reference viewed: 29 (6 ULiège)
Peer Reviewed
See detailEffets du monoxyde d’azote (NO) sur le métabolisme des chondrocytes
Henrotin, Yves ULiege; Zheng, SX; Deby, G et al

in Revue du Rhumatisme (1998), 11

Detailed reference viewed: 13 (0 ULiège)
Full Text
Peer Reviewed
See detailEffets du protocole GPG sur l’activité ovarienne
Hanzen, Christian ULiege; Boudry, B.; Drion, Pierre ULiege

in Point Vétérinaire (2003), 34(237), 26-30

The GPG protocol or OvSynch includes an injection of GnRH and followed seven days later by an injection of PgF(2alpha), which is preceded forty-eight hours earlier by a second injection of GnRH. The ... [more ▼]

The GPG protocol or OvSynch includes an injection of GnRH and followed seven days later by an injection of PgF(2alpha), which is preceded forty-eight hours earlier by a second injection of GnRH. The effects of GnRH on follicular tissue are either ovulation or luteinization depending at which stage of the cycle the cow is injected i.e. metoestrus, dioestrus or end of dioestrus. Observation of one or the other effect suggests a close association between the stage of follicular development, the function of the follicular tissue present and also the concentration of progesterone. [less ▲]

Detailed reference viewed: 84 (15 ULiège)
Full Text
See detailEffets du réchauffement global sur les variables climatiques et hydrologiques au Bénin: Analyse de l’année 2010 par rapport aux données historiques
Ozer, Pierre ULiege; Afouda, Abel; Hountondji, Yvon ULiege et al

Scientific conference (2010, December 22)

Le Bénin a été affecté par des inondations de grande ampleur durant l'hivernage 2010, affectant plus de 350 000 personnes, causant près de 100 000 sans-abri et tuant à 43 reprises. L'objectif de cette ... [more ▼]

Le Bénin a été affecté par des inondations de grande ampleur durant l'hivernage 2010, affectant plus de 350 000 personnes, causant près de 100 000 sans-abri et tuant à 43 reprises. L'objectif de cette recherche est de voir si ces inondations revêtent un caractère exceptionnel ou non du point de vue de l'aléa. Pour ce faire, nous caractérisons les précipitations du réseau synoptique du Bénin sur la période 1940-2009 à partir de différents indices et analysons ensuite l'année 2010. [...] [less ▲]

Detailed reference viewed: 318 (36 ULiège)
See detailEffets du tourteau de colza à différents taux d'incorporation dans une ration d'engraissement pour taurillons sur l'ingestion et les fermentations dans le rumen
Mayombo, Asangule Pierre; Van Calster, Pascale; Diez, Marianne ULiege et al

in 9èmes Journées des Recherches sur l'Alimentation et la Nutrition des Herbivores (1994)

Detailed reference viewed: 9 (2 ULiège)
See detailLes effets du transfert d'entreprise
Kefer, Fabienne ULiege

in Rendez-vous sociaux de l'UCM (2002)

Detailed reference viewed: 76 (22 ULiège)
Full Text
Peer Reviewed
See detailLes effets du vieillissement normal et pathologique sur la cognition
Collette, Fabienne ULiege; Salmon, Eric ULiege

in Revue Médicale de Liège (2014), 69(5-6), 265-269

Des troubles cognitifs touchant principalement le fonctionnement exécutif et mnésique sont observés lors du vieillissement normal et de la maladie d’Alzheimer, et sont associés à des changements au niveau ... [more ▼]

Des troubles cognitifs touchant principalement le fonctionnement exécutif et mnésique sont observés lors du vieillissement normal et de la maladie d’Alzheimer, et sont associés à des changements au niveau de l’activité cérébrale. Il apparait toutefois que différents facteurs sont susceptibles de retarder la survenue des troubles cognitifs, tels que la stimulation mentale ou la pratique d’une activité physique. De même, les prises en charge cognitives permettent d’améliorer le fonctionnement au quotidien des patients présentant une maladie d’Alzheimer (MA). Identifier les facteurs et techniques qui contribuent à maintenir une vitalité cognitive et/ou à contrer les effets de la MA permettront d’optimiser la qualité de vie des seniors. [less ▲]

Detailed reference viewed: 402 (26 ULiège)
Full Text
Peer Reviewed
See detailEffets fonctionnels respiratoires induits par l'inhalation de glycopyrrolate chez le cheval poussif en crise
Art, Tatiana ULiege; de Moffarts, Brieuc; Van Erck, Emmanuelle et al

in Annales de Médecine Vétérinaire (2003), 147

Bronchoconstriction is one of the most constant clinical sign observed in heaves-affected horses in crisis. Cholinergic pathways are involved in the occurrence of this obstruction. Consequently ... [more ▼]

Bronchoconstriction is one of the most constant clinical sign observed in heaves-affected horses in crisis. Cholinergic pathways are involved in the occurrence of this obstruction. Consequently anticholinergic drugs are potentially able to improve the pulmonary function of horses in acute crisis. Among these, atropine and ipratropium bromide have been previously experimented and their beneficial effects reported. In the present work, glycopyrrolate, another synthetic anticholinergic molecule has been tested for bronchodilator efficiency in heaves-affected horses. An acute exacerbation of the illness was obtained by a natural challenge with hay and straw in 7 heaves-affected horses. The first day, the reversibility of the bronchospasm of these horses was controlled by intravenous administration of atropine. Then, pulmonary function tests including mechanics of breathing, ie measurement of pleural pressure changes and respiratory airflows, and arterial blond gases analysis, were performed before as well as 15 and 60 minutes alter inhalation of 1500 µg of glycopyrrolate (Robinul®). The crisis induced a dramatic increase of total pulmonary resistance and maximal pleural pressure changes as well as a decrease in dynamic lung compliance. These changes were significantly reversed 15 and 60 minutes after inhalation of glycopyrrolate. We did not observe any adverse effects similar to those classically observed with atropine. These results showed that glycopyrrolate is a very efficient bronchodilator that may be used by the practitioner to treat a heaves-affected horses in crisis [less ▲]

Detailed reference viewed: 101 (16 ULiège)
Full Text
Peer Reviewed
See detailEffets fonctionnels respiratoires induits par l'inhalation de glycopyrrolate chez le cheval poussif en crise
Art, Tatiana ULiege; De Moffarts, Brieuc; Van Erck, Emmanuelle et al

in Pratique Vétérinaire Equine (2003), 35(139), 23-29

An acute respiratory attack with bronchospasm is associated with excessive stimulation of the parasympathic nervous system. It may be reduced by administration of anticholinergic agents. Atropine and ... [more ▼]

An acute respiratory attack with bronchospasm is associated with excessive stimulation of the parasympathic nervous system. It may be reduced by administration of anticholinergic agents. Atropine and ipratropium bromide have been tested. This study is to evaluate the efficacy of the synthetic antimuscarinic compound glycopyrrolate as a bronchodilator in horses. Respiratory crisis was induced in seven allergic horses by exposure to natural allergens. Prior to the study, it was established that the attack could be stopped using intravenous atropine sulphate. Pulmonary function tests (ventilation and arterial blood gas analysis) were performed on the horses before and then after aerosol administration of 1500 µg of glycopyrrolate (Robinul®). The attack was characterised by an increase in total pulmonary resis¬tance and maximum pleural pressure variation and by decreased compliance. This study demonstrates that glycopyrrolate exhibits affects that are just as rapid and effective as intravenous atropine or aerosol administration of 1200 µg dry powder Ipratropium. In addi¬tion the treatment was well tolerated and no side-effects were observed in contrast to those seen with intravenous administration of atro¬pine. Therefore this drug has an important role to play among the therapeutics available to practitioners for acute respiratory attacks in horses [less ▲]

Detailed reference viewed: 274 (14 ULiège)
Full Text
Peer Reviewed
See detailEffets fonctionnels respiratoires induits par l’inhalation du glycopyrrolate chez le cheval poussif en crise.
Art, Tatiana ULiege; de Moffarts; Van Erck, Emmanuelle ULiege et al

in Congrès de l'Association Vétérinaire Equine Française (AVEF) (2003)

Detailed reference viewed: 24 (7 ULiège)
Full Text
See detailEffets génomiques et non-génomiques de l'oestradiol lors de l'activation du comportement sexuel mâle
Seredynski, Aurore ULiege

Doctoral thesis (2014)

Testosterone, via its estrogenic metabolites, is involved in the control of different behaviors such as social communication or reproduction. Estrogens act mainly at the genomic level via the activation ... [more ▼]

Testosterone, via its estrogenic metabolites, is involved in the control of different behaviors such as social communication or reproduction. Estrogens act mainly at the genomic level via the activation of nuclear receptors to regulate the transcription of target genes but also act at the non- genomic level via the activation of membrane receptors. The main question of my work was how these two types of actions of estrogens interact to control male sexual behavior. [less ▲]

Detailed reference viewed: 57 (12 ULiège)