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See detailFactors determining therapeutic strategy at diagnosis and evolution of disease severity in a cohort of Belgian pediatric Crohn's disease patients (BELCRO)
De Greef, E; Mahachie John, Jestinah; Hoffman, I et al

in Gastroenterology (2012)

Detailed reference viewed: 14 (3 ULg)
See detailFactors driving pCO2 dynamics in sea ice during a large-scale ice tank experiment
Zhou, Jiayun ULg; Delille, Bruno ULg; Tison, J.-L. et al

Conference (2014, March)

According to previous studies, pCO2 fluxes measured over Arctic sea ice are higher than those measured over Antarctic sea ice. We hypothesized that this was due to enhanced respiration in Arctic sea ice ... [more ▼]

According to previous studies, pCO2 fluxes measured over Arctic sea ice are higher than those measured over Antarctic sea ice. We hypothesized that this was due to enhanced respiration in Arctic sea ice, as a consequence of higher riverine inputs of dissolved organic carbon (DOC) into Arctic seawater. We tested this hypothesis during the Interice V experiment at the HSVA (Hamburg) environmental test basin facility. We reproduced the growth and decay cycle of sea ice in replicate mesocosms (1 m3) filled with North Sea water (NSW series), and compared these with another series of mesocosms to which humic-rich river water had been added (10%) to increase the DOC concentration (R series). Primary producers were excluded from the experiment. The evolution of the temperature, salinity, DOC, pCO2 and bacterial biomass and production were measured in ice sampled at regular intervals throughout the experiment, as well as in the under-ice water. In addition, ice-air pCO2 fluxes were continuously monitored over both NSW and R mesocosms. pCO2 values in ice were higher in the R ice than in the NSW ice. This is attributed to the DOC content and bacterial respiration, rather than to the ice physical properties (i.e., ice permeability constrained by the ice temperature and salinity). Indeed, R ice had higher DOC content and bacterial production than the NSW ice while both showed similar physical properties. The evolution of the ice-air pCO2 fluxes was consistent with the evolution of pCO2 in ice. The fluxes were, as expected, positive (from sea ice to the atmosphere) during ice growth and negative (from the atmosphere to the ice) during ice melt. [less ▲]

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See detailFactors explaining variation in serum dioxin concentrations for the specific congeners in the French dioxin and incinerators study
Zeghnoun, A.; Frery, N.; Volatier, J. L. et al

in Organohalogen Compounds (2007), 69

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See detailFactors influencing between-laboratory variability of C-reactive protein results as evidenced by the Belgian External Quality Assessement (EQA) Scheme
Devleeschouwer, N.; Libeer, J. C.; Chapelle, Jean-Paul ULg et al

in Scandinavian Journal of Clinical & Laboratory Investigation (1994), 54(6), 435-40

Based on results from the Belgian External Quality Assessment (EQA) Scheme, we studied the main factors affecting the between-laboratory variation of C-reactive protein determination. Participants using ... [more ▼]

Based on results from the Belgian External Quality Assessment (EQA) Scheme, we studied the main factors affecting the between-laboratory variation of C-reactive protein determination. Participants using homogeneous systems with several calibration points generally achieved better performance. Working temperatures influenced the results to a lesser extent. The present study stresses the importance for EQA organizers to collect more detailed information about CRP analytical methods used by the participants. It also suggests that manufacturers should be more involved in the management of quality, in particular by striving for standardization of the material (kit and calibrator) they produce for CRP assay. [less ▲]

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See detailFactors Influencing Cyclodextrin-Mediated Chiral Separations
Servais, Anne-Catherine ULg; Crommen, Jacques ULg; Fillet, Marianne ULg

in Chiral Separations by Capillary Electrophoresis (2010)

In this chapter, several factors likely to infl uence cyclodextrin (CD)-mediated enantioseparations, such as CD type and concentration, pH and ionic strength of the background electrolyte (BGE), addition ... [more ▼]

In this chapter, several factors likely to infl uence cyclodextrin (CD)-mediated enantioseparations, such as CD type and concentration, pH and ionic strength of the background electrolyte (BGE), addition of organic solvents, injection mode as well as temperature are discussed from a practical point of view and illustrated by examples. Finally, several types of dual systems including at least one CD are also presented. [less ▲]

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See detailFactors influencing microbiological and chemical composition of South-Belgian raw sludge
Guillemet, Thibault A.; Maesen, Philippe ULg; Delcarte, Emile et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2009), 13(2), 249-255

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See detailFactors influencing multiple imputation in longitudinal ordinal data
Donneau, Anne-Françoise ULg

Conference (2012, October 25)

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See detailFactors influencing pharmacological treatment in acromegaly
Beckers, Albert ULg

Scientific conference (2009, March)

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See detailFactors influencing physicians' detection of cancer patients' and relatives distress : can a communication skills training program improve physicians' detection?
Merckaert, I.; Libert, Y.; Delvaux, N. et al

in Psycho-oncology (2008), 17

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See detailFactors Influencing Responsiveness and Interpretability of the Roland-Morris Disability Questionnaire
Demoulin, Christophe ULg; Smeets, Rob; Ostelo, Raymond et al

in Abstract book of the Boston International Forum X - Primary Care Research on low back pain (2009, June)

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See detailFactors influencing temporal regulations
Lejeune, Helga ULg; Richelle, Marc ULg

in Richelle, Marc; Lejeune, Helga (Eds.) Time in animal behaviour (1980)

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See detailFactors influencing the behavior of steel columns exposed to fire
Talamona, Didier; Kruppa, Joël; Franssen, Jean-Marc ULg et al

in Journal of Fire Protection Engineering (1996), 8(1), 31-43

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See detailFactors influencing the bioaccumulation of persistent organic pollutants in food webs of the Scheldt estuary
Van Ael, Evy; Covaci, Adrian; Das, Krishna ULg et al

in Environmental Science & Technology (2013)

Concentrations of several persistent organic pollutants (POPs: PCBs, PBDEs, OCPs) in aquatic species from the Scheldt estuary were related with factors (body size, lipids, trophic position), possibly ... [more ▼]

Concentrations of several persistent organic pollutants (POPs: PCBs, PBDEs, OCPs) in aquatic species from the Scheldt estuary were related with factors (body size, lipids, trophic position), possibly influencing their bioaccumulation. Stable nitrogen isotope ratios (δ15N) were used as a measure for trophic position. A decreasing trend in POP levels towards the sea was observed. For POP concentrations in sediments, this trend could be attributed to a dilution effect from mixing with seawater. However, concentrations in biota more downstream were higher than expected after taking into account the dilution effect, possibly due to differences in bioavailability. Tissue concentrations were correlated with the lipid content in biota, but not with body size. Biomagnification was only significant for some PCB congeners and p,p'-DDE at the most marine sampling location (Terneuzen, L1) and for p,p'-DDD and BDE 100 at the second sampling location (Bath, L2). A significant decreasing relationship was found for ɣ-HCH concentrations with increasing δ15N at Terneuzen. For Antwerpen (L3), no significant relationships were detected. TMFs ranged from 0.64 for ɣ-HCH up to 1.60 for PCB 194. These results suggest that biomagnification was more important in the marine part of the estuary, although the presence of multiple carbon sources at the freshwater side might have led to an underestimation of the influence of trophic position. [less ▲]

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See detailFactors influencing the immediate and late outcome of cushing-disease treated by transsphenoidal surgery : A retrospective study by the european cushings-disease survey group
Bochicchio, D.; Losa, M.; Buchfelder, M. et al

in Journal of Clinical Endocrinology and Metabolism (1995), 80(11), 3114-3120

Hypercortisolism attributable to hypersecretion of ACTH by a pituitary adenoma is an uncommon and progressively lethal disease. Because of its rarity, it has been difficult to collect a large series of ... [more ▼]

Hypercortisolism attributable to hypersecretion of ACTH by a pituitary adenoma is an uncommon and progressively lethal disease. Because of its rarity, it has been difficult to collect a large series of patients in order to identify the prognostic factors influencing the outcome after transsphenoidal surgery. We conducted a multicenter, retrospective analysis of the early and late results of surgical treatment of Cushing's disease. Files of patients with Cushing's disease who underwent transsphenoidal surgery between 1975 and 1990 were collected from 25 institutions throughout Europe. Data from 668 of 716 patients were suitable for statistical analyses. Surgical mortality was 1.9%, and major morbidity occurred in 97 patients (14.5%). Clinical and biochemical remission of Cushing's disease after surgery occurred in 510 cases (76.3%). Identification of the tumor by neuroradiological imaging or at operation with histopathological corroboration was associated with remission of hypercortisolism. Recurrence of the disease occurred in 65 (12.7%) of 510 patients in remission after surgery at a mean time of 39.3 months (range 6-104 months). The distribution of the recurrences did not show any apparent plateau or cluster throughout the follow-up period. Low postoperative steroid levels, absence of cortisol response to CRH, and the need for long-term glucocorticoid substitution therapy were all associated with a high probability of long-term remission. Our study demonstrates that transsphenoidal surgery is a safe and effective treatment for patients with Cushing's disease. However, after successful surgery there is a steady increase in the percentage of recurrences, which continues with time. Patients who after operation had hypoadrenocorticism and needed long-term glucocorticoid substitution therapy had the lowest risk of relapse. [less ▲]

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See detailFactors influencing the PCDD/F levels in plasma of Belgian blood donors
Debacker, Neomi; Van Wouwe, Nathalie; Sasse, André et al

in Organohalogen Compounds (2005)

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See detailFactors influencing total cell count in bronchoalveolar lavage fluid obtained in healthy dogs and dogs with respiratory conditions
Lavoué, Rachel ULg; Delvaux, François ULg; Massart, L. et al

in 19h ECVIM Meeting - Porto, Portugal - 8-10 septembre 2009 (2009, September 08)

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See detailFactors influencing wild boar presence in agricultural landscape: a habitat suitability modelling approach
Morelle, Kevin ULg; Lejeune, Philippe ULg

Conference (2012, September 04)

The wild boar (Sus scrofa L.) population has increased in most parts of Europe during the last three decades. As a consequence, population distribution ranges have shifted to more agricultural areas ... [more ▼]

The wild boar (Sus scrofa L.) population has increased in most parts of Europe during the last three decades. As a consequence, population distribution ranges have shifted to more agricultural areas. These newly colonized areas are characterized by highly fragmented forest cover and a preponderance of crop fields and grasslands, thus increasing the risk of problematic interactions with farming activities and small game species. Although plasticity of wild boar to various environmental conditions is well known, understanding the ecological patterns that promote the density distribution of the species within agricultural areas remains of importance for adapted management strategies within these landscapes. Inside a recently occupied area (between 10-30 years of wild boar regular presence) of southern Belgium, we studied the relation between occurences of wild boar population, estimated by hunting bag and crop damages, with a set of environmental, anthropic and landscape variables. We used Maximum Entropy (MaxEnt) approach to analyze the data. Considering the main factors known to favour wild boar distribution, we hypothesized that crop fields providing cover and food, deciduous forest (providing mast) and water stream density are the main factors influencing the wild boar density distribution. The results are used to derive a habitat suitability map of wild boar distribution in northern Wallonia where wild boar recently starts to spread. [less ▲]

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See detailFactors inftuencing ribavirin-induced hemolysis
Van Vlierberghe, H.; Delanghe, J. R.; De Vos, M. et al

in Journal of Hepatology (2001), 34

BackgroundlAims: One of the major side eft'ects of the combination therapy for chronic hepatitis C is ribavirininduced hemolytic anemia. Little is known about variables inftuencing tbis anemia. Our study ... [more ▼]

BackgroundlAims: One of the major side eft'ects of the combination therapy for chronic hepatitis C is ribavirininduced hemolytic anemia. Little is known about variables inftuencing tbis anemia. Our study tried to search for these variables in a large group of patients with hepatitis C treated with the combination therapy. Methods: Two hundred and forty-four patients chronically infected with the hepatitis C virus were treated either with induction treatment (daily dose ofinterferon) or with a standard treatment (interferon thrice weekly). Both groups received 1000-1200 mg of ribavirin from week 4 until the end of the treatment. The drop in hemoglobin level was defined as the dift'erence between the pretreatment hemoglobin level and the hemoglobin level at week 8. Seventeen variables which could possibly influencê'this drop in hemoglobin level were examined. Results: After multivariate analysis, the drop in hemoglobin level was only significant influenced by pretreatment platelet level, treatment and haptoglobin phenotype. The ribavirin dose did not influence the drop in hemoglobin level or the early virological response. Conclusions: Ribavirin-induced hemolysis is inftuenced by the pretreatment platelet level, the administered amount of a-interferon and the haptoglobin phenotype. A careful search for the minimal dose of ribavirin needed in combination treatment is necessary. [less ▲]

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See detailFactors involved in the aggregation of Harmonia axyridis Pallas
Durieux, Delphine ULg; Fischer, Christophe ULg; Deneubourg, Jean-Louis et al

Conference (2012, May 22)

In order to survive cold winters, the invasive multicoloured Asian ladybeetle, Harmonia axyridis Pallas (Coleoptera: Coccinellidae) forms large aggregations in dwellings to overwinter. The factors ... [more ▼]

In order to survive cold winters, the invasive multicoloured Asian ladybeetle, Harmonia axyridis Pallas (Coleoptera: Coccinellidae) forms large aggregations in dwellings to overwinter. The factors involved in the selection of aggregation sites remain misunderstood. The work presented herein focussed on the study of the chemical compounds involved in this phenomenon. Chemical and behavioural analyses highlighted that long-chain hydrocarbons lead congeners towards aggregation sites and ensure the cohesion of the cluster. Subsequently, physical factors were investigated. We studied the influence of (1) the density of individuals and (2) the quality of available shelters on H. axyridis decision to settle and aggregate under shelters. A binary choice experiment conducted in laboratory showed that the multicoloured Asian ladybeetles present a permanent aggregative behaviour, even during non-wintering conditions. These experiments also highlighted the existence of social interactions between individuals. All these results contribute to improve knowledge of this behaviour in H. axyridis and could be used in the design of species-specific traps in order to control infestations in dwellings. [less ▲]

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See detailFactors involved in the bystander effect induced by Varicella zoster and Herpes simplex viral thymidine kinase suicide gene therapy
Grignet, Christine ULg; Cool, V.; Baudson, N. et al

in Journal of Gene Medicine (The) (1999), 1

Detailed reference viewed: 20 (4 ULg)