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 detailImpact of winter feeding strategies on the growth of young dairy heifers in Wallonia
Picron, Pascale ULg; Turlot, Amélie; Froidmont, Eric et al

Conference (2009)

Detailed reference viewed: 11 (1 ULg)
See detailImpact of work on health
Hansez, Isabelle ULg

in Vandenbrande, T; Vandekerckhove, S; Vendramin, P (Eds.) et al Quality of work and employment in Belgium (2012)

Detailed reference viewed: 27 (4 ULg)
Full Text
Peer Reviewed
See detailImpact of work variables and safety appraisal on well-being at work
Hansez, Isabelle ULg; Taeymans, sophie; Nyssen, Anne-Sophie ULg

in Pikaar, R. N.; Koningsveld, E. A. P.; Settels (Eds.) Proceedings of the 16th World Congress of Ergonomics (2006)

Work environments have been encountering tremendous changes since the early 1990s. The enlargement of flexibility practices has raised concerns about well-being at work but also about safety. These two ... [more ▼]

Work environments have been encountering tremendous changes since the early 1990s. The enlargement of flexibility practices has raised concerns about well-being at work but also about safety. These two research areas, i.e. safety and well-being at work, have a strong tradition of diagnosis and research but there are few examples in the literature that attempt to link the two areas. Our goal in this study was to analyze the impact of both work variables and safety appraisal on well-being within a context of organizational changes. We used questionnaires on 4297 workers from a large company in the energy sector that has encountered big organizational changes these last years. Job control dimensions, safety appraisal, eustress and distress were measured using existing questionnaires. The results give some evidence for an additive explanation of eustress when adding safety appraisal in the hierarchical regression analysis. The additive effect of safety appraisal on distress was also significant but not enough strong to be considered seriously. A path analysis has shown that the effect of management safety climate on distress was rather an indirect effect through the job control dimensions. [less ▲]

Detailed reference viewed: 41 (6 ULg)
Full Text
See detailImpact on laminated composite plates: comparison of test and simulation results obtained with LMS Samtech SAMCEF
Bruyneel, Michaël ULg; Maurice, Verenne; Carrella, Delphine et al

in V ECCOMAS Thematic Conference on the Mechanical Response of Composites (2015)

Detailed reference viewed: 18 (0 ULg)
Full Text
See detailImpact on laminated composite plates: comparison of test and simulation results obtained with LMS Samtech SAMCEF
Bruyneel, Michaël ULg; Maurice, Verenne; Carrella, Delphine et al

in V ECCOMAS Thematic Conference on the Mechanical Response of Composites (2015)

Detailed reference viewed: 18 (0 ULg)
Full Text
Peer Reviewed
See detailImpact physiologique et pathologique du stress oxydant chez le cheval
De Moffarts, Brieuc; Kirschvink, Nathalie; Pincemail, Joël ULg et al

in Annales de Médecine Vétérinaire (2005), 149(1), 1-9

Oxidative stress has become of increasing interest in research and in equine and human medicine. If the pro-oxidant burden overwhelms the endogenous antioxidant defence of the organism, the arising ... [more ▼]

Oxidative stress has become of increasing interest in research and in equine and human medicine. If the pro-oxidant burden overwhelms the endogenous antioxidant defence of the organism, the arising imbalance between pro- and antioxidants is defined as oxidative stress. Different pathways might increase the generation of reactive oxygen species ( ROS) and results in oxidative stress. In physiological conditions, like during moderated exercise, the balance between ROS production and antioxidants allows to maintain an optimal organic function. In the light of the potentially deleterious role of excessive ROS production and the evidence that exercise-induced oxidative stress occurs in horses, the assessment of the antioxidant status should be considered in sport horses. Recent researches indicate that oxidative stress may play a role in physiopathology of several pathological syndromes in horses. Therefore, with classical treatment, the controlled administration of antioxidants appears interesting for the modulation of these processes, as well as in sport horses during intense exercise period. [less ▲]

Detailed reference viewed: 167 (11 ULg)
Full Text
Peer Reviewed
See detailL'impact psychologique du cancer sur l'entourage : une revue
Mormont, Christian ULg

in Annales Medico-Psychologiques (1992), 150

The impact of cancer on the patient's family and caregivers is important and it can be analyzed in terms of coping strategies. It depends on the patient (age, sex, role ...), the illness (site, stage ... [more ▼]

The impact of cancer on the patient's family and caregivers is important and it can be analyzed in terms of coping strategies. It depends on the patient (age, sex, role ...), the illness (site, stage, state ...), the people (parents, siblings, caregivers ...), the time (diagnosis, treatment, death, after death rehabilitation), the prognosis. The survey of the literature underlines the methodological difficulties met in this complex field and the distress of the family and caregivers at each stage of the illness, even during long term remissions. [less ▲]

Detailed reference viewed: 35 (1 ULg)
Full Text
Peer Reviewed
See detailL’impact relatif de la langue-toit sur une famille lexicale des dialectes locaux : les cas de « voisin », « voisiner », « voisinage » dans les dialectes de Wallonie
Baiwir, Esther ULg

in Iliescu, Maria; Siller-Runggaldier, Heidi; Danler, Paul (Eds.) Actes du XXVe congrès international de linguistique et de philologie romanes (t. IV) (2010)

Detailed reference viewed: 20 (3 ULg)
Full Text
Peer Reviewed
See detailImpact studies and water management with WolfHydro : a new physically based hydrological solver
Archambeau, Pierre ULg; Mouzelard, Thibaut; Erpicum, Sébastien ULg et al

in International Symposium on Environmental Hydraulics (2001, December)

Detailed reference viewed: 12 (0 ULg)
Full Text
Peer Reviewed
See detailImpact thérapeutique du dépistage de l’ischémie myocardique silencieuse chez le sujet diabétique de type 2
Wallemacq, Caroline ULg; Scheen, André ULg

in Revue Médicale Suisse (2008), 168(4), 1800-1804

Coronary artery disease is the major cause of mortality of type 2 diabetic subjects. Its early diagnosis to prevent progression and clinical events has intuitive appeal. Somehow, rationale for screening ... [more ▼]

Coronary artery disease is the major cause of mortality of type 2 diabetic subjects. Its early diagnosis to prevent progression and clinical events has intuitive appeal. Somehow, rationale for screening has not been clearly established. Screening should not modify the medical therapy because diabetic subjects have to be treated in a secondary prevention strategy. We have no data from randomized trials concerning a better outcome after revascularization in this specific population. The question how to select the high risk population to be screened has no response by now. SPECT and stress echocardiography seem valuable for screening but not for risk stratification. A large randomized clinical trial is required to confirm the cost-utility ratio of such a screening. [less ▲]

Detailed reference viewed: 130 (6 ULg)
Full Text
See detailL'impact thermique et écologique du fonctionnement des centrales électriques sur la Sambre et la Meuse
Everbecq, Etienne ULg; Bourouag, Mohamed ULg; Deliège, Jean-François ULg et al

Report (2000)

L’objectif de cette étude est de mieux comprendre et de quantifier (via la modélisation mathématique) les phénomènes qui se déroulent dans le milieu aquatique au droit et en aval des centrales électriques ... [more ▼]

L’objectif de cette étude est de mieux comprendre et de quantifier (via la modélisation mathématique) les phénomènes qui se déroulent dans le milieu aquatique au droit et en aval des centrales électriques, en particulier les effets du cumul des prises d’eau et rejets thermiques sur l’écosystème aquatique. L'étude concernait les centrales électriques situées sur la Meuse en région wallonne : la centrale de Tihange, la centrale des Awirs, la centrale de Seraing et la centrale d’Angleur. L'étude a été organisée en 2 phases : La première phase comprenait : - la détermination de l'impact élémentaire de chaque centrale et la détermination de scénarios de fonctionnement des centrale - la détermination de l'impact hydrologique et de l'impact thermique (individuel et cumulé) du fonctionnement des centrales électriques sur la Meuse La deuxième phase comprenait : - la détermination de l'impact écologique du fonctionnement des centrales électriques sur l’écosystème Meuse; - l'examen des actions possibles pour minimiser les impacts Ce rapport final reprend les résultats de la deuxième phase de l'étude [less ▲]

Detailed reference viewed: 43 (4 ULg)
See detailDe impact van Van Ostaijen. Een gesprek met Geert Buelens
Spinoy, Erik ULg; Willockx, Dietlinde; Peeters, Patrick

in Freespace Nieuwzuid (2001), 2(7), 3-28

This is the text of an interview with Geert Buelens, author of an important study of Paul van Ostaijen's influence on modern Flemish poetry.

Detailed reference viewed: 32 (0 ULg)
Full Text
Peer Reviewed
See detailEl impacto de las migraciones cochabambinas en el marco de las transformaciones globales de las migraciones
Lafleur, Jean-Michel ULg; Ledo, Carmen; Yepez, Isabel

in Solé, Carlota; Parella, Sonia; Cavalcanti, Leonardo (Eds.) Migración boliviana y prácticas transnacionales (2014)

¿Donde se ubica Bolivia en los cambios migratorios de la era global caracterizados por sus vínculos transnacionales? Para responder esta pregunta, se investiga el caso de los emigrantes procedentes de la ... [more ▼]

¿Donde se ubica Bolivia en los cambios migratorios de la era global caracterizados por sus vínculos transnacionales? Para responder esta pregunta, se investiga el caso de los emigrantes procedentes de la ciudad de Cochabamba. En esta ciudad, en marzo del 2009 el CEPLAG-CIUF, realizamos una encuesta de gran amplitud con el propósito de entender las diversas facetas de las migraciones cochabambinas contemporáneas y determinar cómo estas se relacionan con las tendencias globales que acabamos de destacar . Los resultados de dicha encuesta son la base de este artículo. En vista de los requerimientos estadísticos y analíticos del estudio, para realizar la encuesta se visitaron alrededor de 40 mil predios y se encuestaron 15 400 mil hogares. Un tercio de los hogares encuestados declaró tener al menos un familiar en el extranjero. Estos hogares se denominan en este artículo “hogares transmigrantes”. [less ▲]

Detailed reference viewed: 72 (13 ULg)
Full Text
See detailImpacts and mechanisms of action of endocrine disrupting chemicals on the hermaphroditic freshwater gastropod Lymnaea stagnalis (Linnaeus, 1758)
Giusti, Arnaud ULg

Doctoral thesis (2013)

Adverse impacts exerted by molecules called endocrine disruptors on reproduction have been extensively described in vertebrates. However, endocrine-disrupting chemicals might alter reproduction of ... [more ▼]

Adverse impacts exerted by molecules called endocrine disruptors on reproduction have been extensively described in vertebrates. However, endocrine-disrupting chemicals might alter reproduction of invertebrate species, at lower concentrations or through different modes of action, with consequences on population growth and stability. Among invertebrates, molluscs have been shown to be very sensitive to endocrine disruptors and were therefore proposed as model species for the development of OECD guideline for the testing and the assessment of reprotoxic effect of chemicals, including EDCs. The hermaphrodite gastropod species Lymnaea stagnalis is a candidate species for the development of such guidelines. In this context, the aim of this thesis is to provide a better understanding of the impacts and the mechanisms of action of endocrine disrupting chemicals on the reproduction of L. stagnalis. The chemicals tested in the present work were chosen based on their interactions with the endocrine system of vertebrates. Testosterone is the natural ligand of the androgen receptor in vertebrates. Three different molecules were selected for their antagonism of the androgen receptor in vertebrates: the synthetic steroid cyproterone acetate, the dicarbamide fungicide vinclozolin and the organophosphate insecticide fenitrothion. Chlordecone is an organochlorinated pesticide, which binds oestrogen receptors in vertebrates. Finally, two organotin compounds, triphenyltin and tributyltin, are able to induce the development of imposex, imposition of male sex organs in females, in gonochoric gastropod molluscs. Results of the present work are divided into two main sections. Firstly, we investigated the impacts of the selected chemicals on the reproduction of L. stagnalis. Our results displayed that TBT, TPT, and chlordecone are able to induce adverse impacts on the reproduction of L. stagnalis through a reduction of the cumulative number of eggs and clutches produced per individual. The assessment of the quality of eggs produced showed that exposure to the chemicals, except TPT, increases the frequency of abnormal eggs laid. The impacts on egg quality were observed at lower concentrations than those affecting the classical reproductive endpoints assessed in reprotoxicity tests in this species. Our results highlight that the implementation of egg quality as an endpoint should increase the sensitivity of the reprotoxicity test with L. stagnalis. The second section of results aims at providing new insights on the mechanisms of action of putative endocrine disruptors in L. stagnalis. Results from chapter 3 and 4 allowed us to select chemical treatments (testosterone, tributyltin, cyproterone acetate, and chlordecone) that induced adverse effects, by interacting with the endocrine system, on the reproduction of L. stagnalis. In Chapter 5, we analysed endogenous concentrations of testosterone, in its free and esterified forms, in the reproductive organs of L. stagnalis. Exposure to waterborne testosterone has confirmed that molluscs can take up this steroid from environmental media and that a homeostatic regulation of endogenous concentrations occurs through the esterification of steroids to fatty acid esters. Moreover, our results support that testosterone is endogenously synthesised in L. stagnalis, as it has been suggested in other mollusc species. However, the impacts on the reproduction and the modifications of endogenous concentrations of testosterone reported in this thesis could not be associated. In chapter 6, proteomic experiments were used to identify proteins differently expressed in reproductive organs of L. stagnalis exposed to testosterone, tributyltin, cyproterone acetate, and chlordecone. Modifications in the expression of three proteins involved in L. stagnalis reproduction (i.e., ovipostatin, yolk ferritin and PIWI) could be associated with the alterations of reproductive endpoints reported in chapters 3 and 4, therefore suggesting possible endocrine disruption mechanisms. Altogether, the results obtained in the present work provide evidences of interactions between chemicals and the endocrine system of this hermaphrodite species. Moreover, the additional sensitive reproductive endpoints described in this thesis (i.e., egg quality) as well as the identification of particular proteins (i.e., ovipostatin, yolk ferritin and PIWI) and their differential expression patterns following chemical exposure, provide reliable tools to screen potency of toxicants to be endocrine disruptors in a partial life cycle test on the freshwater gastropod Lymnaea stagnalis. [less ▲]

Detailed reference viewed: 105 (19 ULg)
Full Text
Peer Reviewed
See detailImpacts and uncertainties of upscaling of remote sensing data validation for a semi-arid woodland.
Hufkens, K.; Bogaert, Jan ULg; Dong, Q H et al

in Journal of Arid Environments (2008), 72

Detailed reference viewed: 15 (5 ULg)
See detailImpacts and uncertainties of upscaling of remote sensing data validation for a semi-arid woodland.
Hufkens, K; Bogaert, Jan ULg; Dong, Q H et al

in Geophysical Research Abstracts 10: EGU2008-A-00148. (2008)

Detailed reference viewed: 19 (2 ULg)
See detailImpacts and uncertainties of upscaling of remote sensing data validation for a semi-arid woodland.
Hufkens, K; Bogaert, Jan ULg; Dong, Q H et al

Poster (2008)

Detailed reference viewed: 8 (1 ULg)
Full Text
See detailLes impacts collectifs de l'insertion. Définition, typologie et techniques de mesure
Marée, Michel ULg

in Nicaise, Ides; Nyssens, Marthe; Marée, Michel (Eds.) Economie sociale, inclusion sociale et intérêt général (2006)

Detailed reference viewed: 92 (4 ULg)
Full Text
Peer Reviewed
See detailImpacts d’une association culturale de pois et de pommes de terre sur les pucerons et auxiliaires aphidiphages en Chine
Bosquée, Emilie ULg; Chevalier Mendes Lopes, Thomas ULg; Serteyn, Laurent et al

in Entomologie Faunistique = Faunistic Entomology (2014), 67

Crop associations can have beneficial effects on the control of insect pests. This study was conducted in the Shandong province (China) to assess the impact of potatoes and peas association on the ... [more ▼]

Crop associations can have beneficial effects on the control of insect pests. This study was conducted in the Shandong province (China) to assess the impact of potatoes and peas association on the populations of aphids and their natural enemies. Observations on potato plants and trapping (yellow pan traps) were performed. During the season, the degree of infestation didn’t differ significantly between the association and the pure stand. However, one week after the aphids abundance peak, predators and parasitoid mummies were significantly more abundant in the association compared with the pure stand. Trapping give a more general idea about the richness and diversity of adult natural enemies present in the environment. The parasitoid specie Aphidius gifuensis (Ashmead) was the most abundant among beneficials. Propylea japonica (Thunberg) and Harmonia axyridis (Pallas) were prevalent among predators. Few hoverflies and lacewings were trapped. This study contributes to better evaluate the potential of crop associations as an alternative method to control aphids without insecticides in this region. [less ▲]

Detailed reference viewed: 38 (13 ULg)