Publications ORBi OA
Bookmark and Share    
Full Text
See detailSFX Knowledge Base Advisory Board (KBAB): goals and achievements after one year
Renaville, François ULg; Needleman, Mark

Conference (2014, September 16)

Founded in 2013 as a result of discussions at the 2012 Zurich Conference, the goal of the SFX Knowledge Base Advisory Board (KBAB) is to promote first class quality of the data stored in the SFX Knowledge ... [more ▼]

Founded in 2013 as a result of discussions at the 2012 Zurich Conference, the goal of the SFX Knowledge Base Advisory Board (KBAB) is to promote first class quality of the data stored in the SFX Knowledge Base by reviewing the quality assurance policies and processes together with Ex Libris. During its first year, the group identified several issues in order to improve the CKB quality. They shared them with Ex Libris which agreed to work on or to take a look at some. This session will explain how KBAB has been working, and present some of the issues and the improvements brought by Ex Libris. [less ▲]

Detailed reference viewed: 92 (14 ULg)
Full Text
See detailScriptorium, a retro-cataloguing tool to easily and quickly encode older book items
Renaville, François ULg; Danhieux, Sylvain ULg

Conference (2014, September 16)

The University of Liège Library's books collection is composed of some 2,000,000 print volumes, of which only 60% are catalogued. Most of the uncatalogued books have been published before 1970 and ... [more ▼]

The University of Liège Library's books collection is composed of some 2,000,000 print volumes, of which only 60% are catalogued. Most of the uncatalogued books have been published before 1970 and cataloguing these according usual standards and norms would certainly take decades. To decrease the cost of treatments and increase the number of catalogued volumes, the Library developed a light PHP/MySQL application, Scriptorium, that enables non-catalogers (mostly students) to quickly encode the books (ca 3 min. per item) by providing the most essential information. References are then daily exported in MarcXML to the ILS. Scriptorium has been developed to permit to easily create new independent instances for different parallel retro-cataloguing projects and also to be used by other libraries. [less ▲]

Detailed reference viewed: 103 (15 ULg)
Full Text
Peer Reviewed
See detailDevelopping a physically based groundwater vulnerability concept in a DPSIR framework
Beaujean, Jean ULg; Brouyère, Serge ULg; Lemieux, Jean-Michel et al

Conference (2014, September 15)

A general physically based method is presented to assess vulnerability of groundwater to external pressures with respect to quality and/or quantity issues. In the vulnerability assessments, many ... [more ▼]

A general physically based method is presented to assess vulnerability of groundwater to external pressures with respect to quality and/or quantity issues. In the vulnerability assessments, many scientific authors agree nowadays that ‘physically based’ methods must be preferred to traditional approaches based on empirical overlay and index methods where physical attributes are often mixed with implicitly embedded conventional priorities. Results from one or another of these last methods can consequently be very dissimilar for a given case study and decision makers are losing confidence in these tools. A methodology is proposed to reframe the groundwater vulnerability assessment in a Pressure-State-Impact causal chain that is familiar to decision makers. The DPSIR framework, for describing interactions between society and the environment, defines a chain of Drivers that exert Pressures on the State of a given resource, such as water, which then generates an Impact that will require an appropriate Response (Kristensen, 2004). The concept of groundwater vulnerability assessment considered here is based on the calculation of sensitivity coefficients for a user-defined groundwater state for which several physically-based indicators are proposed. These sensitivity coefficients reflect the easiness with which the groundwater state transmits pressures into impacts. They are grouped into a vulnerability matrix of pressures and impacts that quantify vulnerability for every combination of causal links identified in the DPSIR chain. For that reason, the sensitivity coefficients are converted to vulnerability, using the concept of ‘falling below a given threshold’, which is commonly used in socioeconomic sciences (Luers et al. 2003). Outside the careful selection of the sensitivity analysis method that can significantly influence the computational effort (Beaujean et al., 2013), emphasis will be given to the illustration of the general methodology on a simple case (of an alluvial aquifer with concerns related to water supply) demonstrating the potential use of this general and physically based vulnerability assessment method. While the methodology is general, the choice of causal chains has to be made prior to the calculation. The vulnerability is also related to a damaged state and is related to the ‘distance’ between the current state and a given threshold. This choice is arbitrary such that the vulnerability is sensitive to the choice of the threshold. The framework is general and, when applied to water, can include states that are not limited to quality such as, for example, water quantity and availability. [less ▲]

Detailed reference viewed: 13 (1 ULg)
Full Text
See detailEtude de la fibrose pulmonaire idiopathique canine: analyse du transcriptome, investigation des voies du TGF beta 1 et recherche de biomarqueurs
Krafft, Emilie ULg

Doctoral thesis (2014)

Canine idiopathic pulmonary fibrosis (cIPF) is a fibrotic disease of the pulmonary parenchyma, mainly seen in the West Highland white terrier. It is characterized by exercise intolerance and cough with a ... [more ▼]

Canine idiopathic pulmonary fibrosis (cIPF) is a fibrotic disease of the pulmonary parenchyma, mainly seen in the West Highland white terrier. It is characterized by exercise intolerance and cough with a progressive deterioration until death from respiratory insufficiency. Clinical, tomodensitometric and histological characteristics of cIPF have been described recently. However, this disease remains largely unknown and the clinicians are dealing with two major challenges: confirmation of the diagnosis, which requires many complementary exams, and absence of effective treatment. Identification of a targeted therapy is difficult without having a good understanding of the mechanisms leading to pulmonary parenchyma fibrosis. A similar disease, the idiopathic pulmonary fibrosis (IPF) is recognized in humans and cIPF might be interesting as a spontaneous model. This project in dogs was undertaken to answer, at least partly, to these challenges. The aims were to elucidate some mechanisms involved in cIPF pathogenesis and to identify biomarkers that could be used in the diagnosis process. The hypotheses were first that analysis of the transcriptome through microarray experiment would identify altered biological functions in cIPF, highlight specific molecules with an altered expression and identify potential biomarkers. Another hypothesis was the transforming growth factor beta 1 (TGFB1) pathways, considered central in the pathogenesis of IPF, would also be modified in cIPF. Finally, ET1, a known biomarker in human IPF, might also be an interesting biomarker in dogs. Gene expression analysis through microarray analysis, combined with the use of IPA, a data analysis program, identified altered biological functions in cIPF: cellular growth and proliferation, developmental processes, cellular movement, cell to cell signaling and interaction and antigen presentation. Some genes highlighted in the microarray experiment were then analyzed individually. Quantitative RT-PCR analysis confirmed an upregulation of the expression of CCL2, CCL7, CXCL14, IL8 and FAP (fibroblast activation protein) as well as a downregulation of the expression of PLUNC (palate, lung and nasal epithelium associated). We then complete the gene expression analysis with a search for potential biomarkers. Thirty-four potential biomarkers were identified with 32 biomarkers potentially measurable in blood (including CCL2, serum amyloid 1, IL8) and 2 biomarkers measurable only in the bronchoalveolar lavage fluid (BALF) (PLUNC and mesothelin). This approach was validated by measurement in serum of one of this biomarker: CCL2. CCL2 serum concentration was higher in affected WHWT compared to healthy WHWT and also higher in dogs with cIPF compared to dogs with chronic bronchitis (CB) or eosinophilic bronchopneumopathy (EBP). Based on serum CCL2 determination, cIPF was diagnosed with a sensibility of 92% and a specificity of 80%. We then studied TGFB1 and part of its storage, activation and signaling pathways. TGFB1 gene expression was not significantly different in the pulmonary parenchyma between affected and control dogs. However, in affected dogs, increased TGFB1 protein levels were seen by immunohistochemistry in fibrotic areas. High expression of bothTGFB1 type I receptor and phosphorylated Smad2/3, markers of an active intracellular TGFB1 signal, were seen in epithelial cells. No difference in expression for the storage proteins LTBP1 and LTBP2 was seen while expression of LTBP4 was significantly decreased in dogs with cIPF. Concerning the proteins involved in TGFB1 activation, gene expression was decreased for integrin subunit β8, increased for thrombospondin-1 and not modified for integrin subunit β6. Expression of Smad 7, involved in intracellular TGFB1 signal inhibition, was not modified. No difference for TGFB1 serum concentration was seen between WHWT with cIPF and healthy WHWT. A multivariate analysis performed on healthy dogs showed no age effect but a significant breed effect with higher levels in predisposed breeds. We evaluated part of the serotonin pathway, as one of its receptor (5HTR2B) was highlighted during the gene expression analysis. Serotonin has also been involved in the pathogenesis of human IPF and described to be of potential use as a biomarker in degenerative mitral valve disease in dogs. Expression of 2 serotonin receptors (5HTR2A and 5HTR2B), evaluated by quantitative RT-PCR in pulmonary tissue, was not different between dogs with cIPF and control dogs while expression of the serotonin transporter (5HTT) was significantly lower in affected dogs. No difference in serotonin serum level was seen between affected and healthy WHWT or between dogs with cIPF, CB or EBP. ET1 was evaluated as a biomarker in serum and BALF. ET1 serum concentration was not different between healthy WHWT and Beagles. Covariance analysis did not reveal any significant age effect. Serum levels were significantly higher in dogs with cIPF compared to dogs with CB or EBP. ROC curve analysis was then used to evaluate its diagnostic performances. The area under the curve was 0,818 with a sensitivity of 91.7% and a specificity of 87.5%. ET1 was also measured in the BALF in a small number of dogs. Its concentration was measurable in all dogs with cIPF while it was below the detection limit in all other dogs tested (healthy and with CB). Even though cIPF and human IPF are not completely identical from clinical, tomodensitometric or histological points of view, these results show that both canine and human diseases share molecular pathways, supporting the idea that cIPF might have an interest as spontaneous model. This work allowed a better understanding of cIPF pathogenesis. Gene expression analysis in the pulmonary parenchyma of affected dogs first identified several altered biological functions that should be analyzed in details in further studies. A more targeted analysis of some genes confirmed an upregulated expression of CCL2, CCL7, CXCL14, IL8 and FAP. Such a positive regulation of the expression of various inflammatory cytokines tends to suggest that inflammation might have a role in cIPF pathogenesis. Some of these cytokines also have profibrotic properties. PLUNC was one of the top down-regulated genes. Roles of the protein are still largely unknown; it might have a role in the inflammatory response and in the innate immunity. Developmental pathways were also altered in cIPF and quantitative RT-PCR confirmed an upregulation of FAP, a protein normally expressed in areas of tissue remodeling during fetal development and also positively regulated in human IPF. This study has shown that there is an active TGFB1 signal in the lungs of dogs with cIPF, especially at the level of the pathological epithelium. TGFB1 storage and activation pathways also seemed to be altered. Elevated TGFB1 circulating levels were found in predisposed breeds, which might explain at least partly their susceptibility for cIPF. Because of these results and its well-known profibrotic properties, we can suggest that TGFB1 is probably involved in cIPF pathogenesis and that modulation of its storage, activation or intracellular signaling might offer potential therapeutic targets. Our preliminary results are not in favor of a significant modification of the serotonin pathways in cIPF, although a decreased expression of 5HTT was seen in affected dogs and might have an impact on the amount of serotonin present locally. However, other studies are needed to conclude. Finally, several potential biomarkers have been identified and some of them were evaluated in details. While serum measurements performed for TGFB1 and serotonin indicated that these molecules have no interest as diagnostic biomarkers, ET1 and CCL2 were identified as interesting candidates with good diagnostic performances. However these results need to be confirmed in an independent validation cohort and the interest of combining both biomarkers should be evaluated. [less ▲]

Detailed reference viewed: 8 (2 ULg)
Full Text
Peer Reviewed
See detailIntegrated modelling and uncertainty analysis for assessment of climate change effects on groundwater resource
Goderniaux, Pascal; Wildemeersch, Samuel ULg; Dassargues, Alain ULg

Conference (2014, September 15)

Climate change will bring new pressure on surface and groundwater resources (e.g. Allen et al., 2004; Goderniaux et al., 2009; Van Roosmalen et al., 2009) in many parts of the world. Additional work is ... [more ▼]

Climate change will bring new pressure on surface and groundwater resources (e.g. Allen et al., 2004; Goderniaux et al., 2009; Van Roosmalen et al., 2009) in many parts of the world. Additional work is required to help water managers to plan for future changes. For example, most of studies provide projections for a stationary climate representative of the end of the century, although information is demanded for the near-future. A sophisticated transient weather generator (WG) in combination with an integrated surface-subsurface hydrological model (HydroGeoSphere) are used for producing a stochastic generation of large numbers of equiprobable climatic time series, representing transient climate change, and assess impacts on groundwater resources in a probabilistic way. This new methodology is applied for the unconfined chalky aquifer of Hesbaye (Geer basin in Belgium). The following uncertainty sources are studied : (1) the uncertainty linked to the calibration of the hydrological model, using 'UCODE_2005' (Poeter et al., 2005); (2) the uncertainty linked to the global and regional climatic models (GCMs and RCMs), by using a multi-model ensemble; (3) the uncertainty linked to the natural variability of the weather, by using stochastic climate change scenarios. 30 equiprobable climate change scenarios from 2010 to 2085 have been generated for each of 6 different RCMs. Results show that although the 95% confidence intervals calculated around projected groundwater levels remain large, the climate change signal becomes stronger than that of natural climate variability by 2085. Additionally, the WG ability to simulate transient climate change enabled the assessment of the likely timescale and associated uncertainty of a specific impact. This methodology constitutes a real improvement in the field of groundwater projections under climate change conditions as it enables water managers to analyse risks and take decisions with full knowledge of projected impact and their degree of confidence. [less ▲]

Detailed reference viewed: 13 (1 ULg)
Full Text
See detailDroit constitutionnel belge - Plan général du cours (année 2014-2015)
Behrendt, Christian ULg

Learning material (2014)

Le document constitue le Plan général de l'enseignement de Droit constitutionnel dispensé à l'Université de Liège en 2e année de bachelier en droit et en 2e année de bachelier en science politique.

Detailed reference viewed: 4582 (953 ULg)
Full Text
See detailJupiter’s magnetopause: A search for wave and reconnection signatures
Bonfond, Bertrand ULg; Kivelson, M. G.; Khurana, K. K. et al

Conference (2014, September 12)

Surface waves and magnetic reconnection are two key processes taking place at the planetary magnetopause. They allow the coupling, through energy (and particle) transfer, of the interplanetary medium and ... [more ▼]

Surface waves and magnetic reconnection are two key processes taking place at the planetary magnetopause. They allow the coupling, through energy (and particle) transfer, of the interplanetary medium and the magnetosphere. The relative importance of large scale Dungey reconnection and viscous interaction (including small-scale intermittent reconnection associated with Kelvin-Helmholtz vortices) are expected to be different at Jupiter compared to the Earth’s case. Such differences would be due to the combination of a) a weaker solar wind pressure and Alfvén velocity as the distance to the Sun increases, b) a high-β plasma sheet, originating from Io’s outgassing, which inflates the Jovian magnetosphere, c) the rapid rotation of the planet relative to its size (e.g. Desroche et al. 2012). Here we analyse the signatures of wave activity and reconnection on the magnetopause of Jupiter, based on magnetic field and energetic particle measurements from the successive spacecraft that explored the Jovian system. Up to now, 7 spacecraft equipped with a magnetometer have crossed the Jovian magnetopause: Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Ulysses, Galileo and Cassini. We make use of several normal direction finding techniques, such as the Minimum Variance Analysis, in order to identify waves and Kelvin-Helmholtz vortices. As far as the reconnection is concerned, small scale signatures of flux-tube events (FTEs) had been identified by Walker and Russell (1985), based on a limited data-set from the Pioneers’ and Voyagers’ fly-bys. Here we will extend this search to the extensive dataset from all the missions that explored Jupiter’s system. [less ▲]

Detailed reference viewed: 8 (4 ULg)
Full Text
Peer Reviewed
See detailPsychological processes mediating the link between depression severity and the level of behavioural activation: Assessment of a conceputal model
Wagener, Aurélie ULg; Baeyens, Céline; Blairy, Sylvie ULg

Poster (2014, September 12)

INTRODUCTION. Depression is a common psychopathology characterized by a decrease of the level of behavioural activation (BA) that is the level of engagement in activities. The relationship between ... [more ▼]

INTRODUCTION. Depression is a common psychopathology characterized by a decrease of the level of behavioural activation (BA) that is the level of engagement in activities. The relationship between depression and BA is well-established in the scientific literature. According to theoretical models of depression, psychopathology is also characterized by biases in five sets of psychological processes (PP): self-image (e.g. self-esteem), negative repetitive thoughts (e.g. ruminative thoughts), experiential avoidance (e.g. mindfulness), environmental satisfaction (e.g. environmental reward observation) and emotional regulation (e.g. distress tolerance). Therefore, the present study aims to identify PP mediating the relationship between depression and the level of BA. In order to reach this objective, a conceptual model is tested. METHOD. 361 adults (x ̅ age=36, σ=15), from clinical and non-clinical settings, fulfilled a series of questionnaires assessing several variables: sociodemographic data, depression, anxiety, level of BA and the above-cited five sets of PP. Covariance structure analysis will be conducted in order to test the conceptual model mentioned above. RESULTS. Some preliminary results are presented. As expected, a negative significant correlation between depression and BA (r=-.66, p<.01) have been highlighted. Negative significant correlation appeared between BA and the measured PP: self-esteem (r=-.27, p<.01), ruminative thinking (r=-.53, p<.01), environmental reward observation (=-.13, p<.05). Positive significant correlations appeared between BA and mindfulness (r=.49, p<.01) and distress tolerance (r=.26, p<.01). DISCUSSION. The preliminary results are in line with our hypotheses. Indeed, the level of BA is negatively linked to PP usually biased in depression such as self-esteem. The mediating role of these PP between depression and the level of BA will be discussed. [less ▲]

Detailed reference viewed: 5 (0 ULg)
Full Text
Peer Reviewed
See detailRebuilding the educational system in post-conflict context in Kosovo - Survival of the Unmik’s provisions to support the living together through primary education
Pierre, Alexia ULg

Poster (2014, September 12)

In the aftermaths of the Cold War, the International Community adopts the objective of Education for All. Indeed, Education appears as a tool of social and economical development worldwide and supports ... [more ▼]

In the aftermaths of the Cold War, the International Community adopts the objective of Education for All. Indeed, Education appears as a tool of social and economical development worldwide and supports global development. Education allows individuals to take part effectively and actively in the collective life of the society they belong to. Soon after the adoption of this objective, the war is identified as the major obstacle in the fulfillment of this objective of Education for All. The international stakeholders takes their stand in favor of the continuation of the schooling during protracted crisis and wars, what lead to the education in emergency. This education has to spread values, behaviors and attitudes that attack the roots of the conflict. An objective of peace building and conflict prevention is since added to education. In a same temporality, the Kosovo Albanians were submitted to a segregationist policy headed by the Government of Milosevic, the Republika Srpska. This Government aims to make the Kosovo an unmixed territory, inhabited only by Serbs. Kosovo Albanians are rejected from all the state positions and state-owned entreprises. Education appears as a convergent point of the communities antagonisms and a critical issue between Serbs and Albanians in Kosovo. The freedom of being educated in their mother tongue is denied to the Kosovo Albanians through the policy of the Republika Srpska. The Kosovo Albanians react in setting up a parallel education system, in which virtually all the Albanian children intend school from 1992 to 1998. This parallel education system can be seen as a strong element of the pacific resistance of the Kosovo Albanians and a factor of social strength. This parallel educational system collapsed in 1998 due to the war situation in Kosovo. During this internal armed conflict, violations of the Law of war and of the International humanitarian Law are so huge that Nato intervenes through a military air campaign. This military intervention is immediately followed by a civil administration mission, the Unmik, whose mandate is to normalize the life of the inhabitants of Kosovo. Unmik is a restorative model not dedicated to the war victims. The restorative aspects for victims can be seen in the reinstallation of the Kosovo Albanians as full-right citizens. When arriving in Kosovo, Unmik faces two systems of education. Unmik’s first objective is to rebuild a unified education system in Kosovo. Along with objectives of democratization and modernization of a system inherited from a communist model. This intervention is an opportunity to promote and support peace education and conflict prevention through education, in echo with the latest international provisions on education. To achieve this objective of peace building and conflict prevention through education, the pedagogical methods, the contents of teaching and the structure of the education system has to be reformed and restructured. My work aims to explore the reconstruction process of the education system in Kosovo and the operationalization of the provisions that turn education as a tool of peace and conflict prevention, in the primaries schools of Prishtina. My approach is qualitative, inspired by the systemic perspective. The aim of this research is not to evaluate the results of the new Kosovo education system. This work is designed to explore the process of this post-war reconstruction, and to understand how international provisions come within this process and are effectively implemented in the primaries schools. The research question is on the present survival and effectiveness of these provisions in the primaries schools of Prishtina. This work was done first by a confrontation between a corpus of international normative texts on education and a legislative and normative corpus of local texts on education. This first step was dedicated to the selection of the special provisions relative to education as a tool of peace building. It appears that Civic Education and History are the two main teachings in the broadcasting of elements that helps to create a social cohesion. The tools for the data collection were based on the elements selected through this bibliographical research, as the analysis table of the empirical datas. Standardized questionnaires has been completed by teachers in History and Civic Education, and by Directors of the primaries school of Prishtina. Interviews with Kosovo people who were involved in the rebuilding process of the education system were carried out. The results highlights that International Community massively imposed this new model of education, what is visible through the identical profiles of all the schools that participated to the research. It appears that such an intervention is limited by the specificities and the reality of the Kosovo, which were not taken into consideration enough to make this new education system fit well to the very specific aspects of Kosovo. The question of the adaptability of such a model, created out of the Kosovo and without sufficient rely on the local population, is raised through this study. Indeed, the actual education system in Prishtina faces huge challenges in terms of equipment, funding and space. These challenges were not met by the Unmik’s work and are still existing, when the legislative and normative frame is continually developed in respect of the international developments in the matter. Indeed, fundamental education has to be a way to get competencies leading to a democratic citizenship, instead of a way to acquire only school basic knowledge. The potential in peace building and conflict prevention of the present education system in Kosovo is not able to be fully developed. If all the international provisions are well translated into the local provisions and operationalized in the primaries schools, the system has reached its limits and is not able to overcome its numerous challenges. Moreover, there is still two independent systems of education in Kosovo, and the education dedicated to the peace building and conflict prevention reaches only children intended schools of the official system. Serbs children are still educated in the same perspective than during the war. In a long terme perspective, the Kosovo education system will not be able to produce the expected outcomes. This contains risks of resurgence of the conflict. [less ▲]

Detailed reference viewed: 9 (2 ULg)
Full Text
See detailWeakening of Jupiter’s main auroral emission in response to magnetospheric hot plasma injections
Badman, Sarah; Bonfond, Bertrand ULg; Fujimoto, M. et al

Conference (2014, September 11)

We present images of Jupiter’s northern UV aurorae taken by the Hubble Space Telescope as part of a large observing campaign in January 2014. The high time resolution observations allow the dynamics of ... [more ▼]

We present images of Jupiter’s northern UV aurorae taken by the Hubble Space Telescope as part of a large observing campaign in January 2014. The high time resolution observations allow the dynamics of the different components of the aurorae to be observed. Particular features of interest are large regions of diffuse emission, which occurred equatorward of the main oval, enveloping the auroral footprint of Ganymede. These diffuse, low latitude emissions are caused by the injection of hot plasma from the outer magnetosphere, a process which has previously been related to interchange between the flux tubes from the outer magnetosphere and outward-moving flux tubes loaded with iogenic plasma. Over the two-week observing interval the auroral signatures of two large injection events were observed, while the main oval generally decreased in intensity. We suggest that the overall dimming of the main oval results from the weakening of the corotation-enforcement currents that drive the main emission, following the replacement of the radially-stretched, mass-loaded flux tubes by more dipolar flux tubes containing rarefied hot plasma. [less ▲]

Detailed reference viewed: 8 (2 ULg)
Full Text
See detailHighlights of the 2014 Jupiter observing campaign by multi - spectral remote sensing using space telescopes
Kimura, T.; Badman, S.; Tao, C. et al

Conference (2014, September 11)

From January to April 2014, two observing campaigns by multi-wavelength remote sensing from X-ray to radio were performed to uncover energy transport process in Jupiter’s plasma environment using space ... [more ▼]

From January to April 2014, two observing campaigns by multi-wavelength remote sensing from X-ray to radio were performed to uncover energy transport process in Jupiter’s plasma environment using space telescopes and ground-based facilities. These campaigns were triggered by the new Hisaki spacecraft launched in September 2013, which is an extremely ultraviolet (EUV) space telescope of JAXA designed specifically for planetary observations. In the first campaign in January, Hubble Space Telescope made imaging of far ultraviolet (FUV) aurora with a high special resolution (0.08”) through two weeks while Hisaki continuously monitored aurora and plasma torus emissions in EUV wavelength with a high temporal resolution (1 min<). We discovered new magnetospheric activities from the campaign data: e.g., internally-driven type auroral brightening associated with hot plasma injection, and plasma and electromagnetic filed modulations in the inner magnetosphere externally driven by the solar wind modulation. The second campaign in April was performed by Chandra X-ray Observatory, XMM newton, and Suzaku satellite simultaneously with Hisaki. Relativistic auroral accelerations in the polar region and hot plasma in the inner magnetosphere were captured by the X-ray space telescopes simultaneously with EUV monitoring of aurora and plasma torus. In this presentation, we show remarkable scientific results obtained these campaigns mainly focusing on Jupiter’s aurora. [less ▲]

Detailed reference viewed: 7 (1 ULg)
Full Text
See detailSémiologie : Le constat de gestation chez les ruminants
Hanzen, Christian ULg

Learning material (2014)

Objectif général du cours : Le constat de gestation qu'il soit réalisé en recourant à des méthodes manuelles, hormonales ou échographiques constitue une démarche essentielle pour prévenir l'infécondité ... [more ▼]

Objectif général du cours : Le constat de gestation qu'il soit réalisé en recourant à des méthodes manuelles, hormonales ou échographiques constitue une démarche essentielle pour prévenir l'infécondité. Ce chapitre a pour but de présenter les méthodes hormonales (progestérone et PAG) et non hormonales (palpation manuelle, détection de l'oestrus, inspection de l'abdomen, développement mammaire) pour confirmer la gestation chez les ruminants. Il en présente également les avantages et inconvénients. L'examen échographique trouve dans ce contexte une de ses principales applications. Il sera donc envisagé dans un chapitre spécifique. [less ▲]

Detailed reference viewed: 1154 (64 ULg)
Full Text
See detailSémiologie : La propédeutique de l’appareil génital femelle des ruminants
Hanzen, Christian ULg

Learning material (2014)

Objectif général du chapitre : Ce chapitre a pour but de décrire les moyens propédeutiques permettant au clinicien de répondre à 5 questions de base en reproduction bovine notamment, à savoir (1) L’animal ... [more ▼]

Objectif général du chapitre : Ce chapitre a pour but de décrire les moyens propédeutiques permettant au clinicien de répondre à 5 questions de base en reproduction bovine notamment, à savoir (1) L’animal est-il gestant et le cas échéant quel est son stade de gestation ? (2) Si l’animal n’est pas gestant, est-il cyclé et le cas échéant à quel stade du cycle se trouve-t-il ? (3) Si l’animal n’est ni gestant ni cyclé, quelles peuvent en être les raisons ? Pour ce faire il peut recourir à l’anamnèse, à la palpation manuelle du tractus génital, à l’examen vaginal, à la détermination de l’état corporel et à divers examens complémentaires au nombre des quels on peut citer les prélèvements vaginaux et/ou utérins en vue de la réalisation d'examens bactériologiques, les dosages hormonaux en vue du dosage de la progestérone, les tests de perméabilité tubaire et surtout l'examen échographique. Compte tenu de l'importance pratique de ce dernier, il fera l'objet d'un chapitre spécifique. [less ▲]

Detailed reference viewed: 1744 (121 ULg)
Full Text
See detailSémiologie obstétricale : La propédeutique obstétricale des ruminants
Hanzen, Christian ULg

Learning material (2014)

Objectif général : L'obstétrique est la science de l'accouchement. C'est une science mais aussi un art. Sa pratique implique une connaissance minimale des données anatomiques et physiologiques relatives à ... [more ▼]

Objectif général : L'obstétrique est la science de l'accouchement. C'est une science mais aussi un art. Sa pratique implique une connaissance minimale des données anatomiques et physiologiques relatives à la parturition et le respect de quelques principes propédeutiques de base pour définir une stratégie obstétricale. L'accouchement est une plaque tournante entre d'une part la gestation et le post-partum. Il constitue de ce point de vue une étape extrêmement importante pour l'obtention d'une fécondité normale. [less ▲]

Detailed reference viewed: 2780 (129 ULg)
Full Text
See detailSémiologie : La propédeutique de l’appareil reproducteur du mâle et et l’examen du sperme des ruminants
Hanzen, Christian ULg

Learning material (2014)

Objectif général : Ce chapitre décrit les méthodes propédeutiques permettant de reconnaître un mâle capable physiquement et comportementalement de déposer au niveau du tractus génital femelle un sperme ... [more ▼]

Objectif général : Ce chapitre décrit les méthodes propédeutiques permettant de reconnaître un mâle capable physiquement et comportementalement de déposer au niveau du tractus génital femelle un sperme viable, irréprochable sur le plan sanitaire et apte à assurer une fécondation. Il concerne non seulement l’examen externe et interne de l’animal au repos et en action mais aussi le prélèvement et l’examen du sperme. [less ▲]

Detailed reference viewed: 985 (64 ULg)
Full Text
See detailPathologies : L’involution utérine et le retard d’involution utérine chez la vache
Hanzen, Christian ULg

Learning material (2014)

Objectif général : Le chapitre a pour but de définir les 5 aspects anatomique, histologique, biochimique, bactériologique et hormonal que comporte l’involution utérine. Il en précise les facteurs ... [more ▼]

Objectif général : Le chapitre a pour but de définir les 5 aspects anatomique, histologique, biochimique, bactériologique et hormonal que comporte l’involution utérine. Il en précise les facteurs d’influence ainsi que les interactions. [less ▲]

Detailed reference viewed: 1150 (105 ULg)
Full Text
See detailPathologies : Les pathologies de la gestation chez les ruminants
Hanzen, Christian ULg

Learning material (2014)

Objectif général : Ce chapitre a pour objet de traiter des pathologies de la gestation au cours de la période fœtale c’est-à-dire entre le 45ème jour de gestation et le début de la phase 1 de la ... [more ▼]

Objectif général : Ce chapitre a pour objet de traiter des pathologies de la gestation au cours de la période fœtale c’est-à-dire entre le 45ème jour de gestation et le début de la phase 1 de la parturition. Il ne concerne pas la mortalité embryonnaire qui fait l’objet dune description plus spécifique dans le chapitre consacré à l’infertilité. Il a pour objectif d’en faire un inventaire aussi exhaustif que possible chez les ruminants. [less ▲]

Detailed reference viewed: 1197 (111 ULg)
Full Text
See detailPathologies : Les kystes ovariens de la vache
Hanzen, Christian ULg

Learning material (2014)

Objectif général : Pathologie plus spécifique de la vache laitière, le kyste ovarien constitue un facteur d’infertilité et d’infécondité .Il traduit une absence d’ovulation. Le présent chapitre se propose ... [more ▼]

Objectif général : Pathologie plus spécifique de la vache laitière, le kyste ovarien constitue un facteur d’infertilité et d’infécondité .Il traduit une absence d’ovulation. Le présent chapitre se propose de le définir, d’en présenter la symptomatologie, les méthodes de diagnostic, les facteurs de risque et les stratégies thérapeutiques. [less ▲]

Detailed reference viewed: 1125 (115 ULg)