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See detailDinantian rocks in the subsurface North of the Brabant and Ardenno-Rhenish Massifs in Belgium, The Netherlands and the Federal Republic of Germany.
Bless, MJM; Bouckaert, J; Bouzet, P et al

in Mededelingen - Rijks Geologische Dienst (1976), 27(3), 81-193

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See detail“Dinanzi al morire e attaccamento: stili di attaccamento, qualità del supporto emotivo e alleanza col medico nella fase terminale della malattia oncologica
Calvo, Vincenzo; Marinelli, Sara; Mania, Adriana et al

in International congres Before dying: Interdisciplinary intervention from research to palliative intervention, Padova 6-7-8 september 2012 (2012, September 06)

We tested the hypothesis that security of attachment may act as protective factor for psychological distress in hospice patients with cancer in the terminal phase. We hypothesized that security of ... [more ▼]

We tested the hypothesis that security of attachment may act as protective factor for psychological distress in hospice patients with cancer in the terminal phase. We hypothesized that security of attachments may influence positively both the emotional support provided by the caregiver and the quality of the working alliance with physicians. 37 hospice patients with advanced cancer disease, their caregivers and 4 physicians participated to the study. The results supported the hypothesis. Patients with secure attachment perceived more emotional support from the caregiver, they were also more able to reciprocate and provide more emotional support to the caregiver; secure individuals perceived better working alliance with physicians [less ▲]

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See detailIl dinar contro il ducato
Bauden, Frédéric ULg

in dal Pozzolo, Enrico; Dorigo, Rosella; Pedani, Maria Pia (Eds.) Venezia e l'Egitto (2011)

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See detailDINEOF reconstruction of clouded images including error maps. Application to the Sea-Surface Temperature around Corsican Island
Beckers, Jean-Marie ULg; Barth, Alexander ULg; Alvera Azcarate, Aïda ULg

in Ocean Science (2006), 2

We present an extension to the Data INterpolating Empirical Orthogonal Functions (DINEOF) technique which allows not only to fill in clouded images but also to provide an estimation of the error ... [more ▼]

We present an extension to the Data INterpolating Empirical Orthogonal Functions (DINEOF) technique which allows not only to fill in clouded images but also to provide an estimation of the error covariance of the reconstruction. This additional information is obtained by an analogy with optimal interpolation. It is shown that the error fields can be obtained with a clever rearrangement of calculations at a cost comparable to that of the interpolation itself. The method is presented on the reconstruction of sea-surface temperature in the Ligurian Sea and around the Corsican Island (Mediterranean Sea), including the calculation of inter-annual variability of average surface values and their expected errors. The application shows that the error fields are not only able to reflect the data-coverage structure but also the covariances of the physical fields. [less ▲]

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See detailDINEOF univariate reconstruction of missing satellite data from the North Sea Belcolour-1 database.
Sirjacobs, Damien ULg; Alvera Azcarate, Aïda ULg; Barth, Alexander ULg et al

Poster (2008)

The Belcolour-1 database holds more than 4 years of uniformly resampled MERIS chlorophyll (CHL), total suspended matter (TSM), MODIS-AQUA CHL, TSM and sea surface temperature (SST) over the North Sea. A ... [more ▼]

The Belcolour-1 database holds more than 4 years of uniformly resampled MERIS chlorophyll (CHL), total suspended matter (TSM), MODIS-AQUA CHL, TSM and sea surface temperature (SST) over the North Sea. A first step of the RECOLOUR* project consists in the univariate reconstruction of missing data with the DINEOF method (Data Interpolating Empirical Orthogonal Functions). In particular, the DINEOF treatment of MERIS CHL and TSM images available for the year 2003 allowed an efficient synthesis of the coherent modes of variability existing at the scale of the whole North Sea. For both parameters, 4 modes were retained by general cross validation as an optimum for the reconstruction of missing data. For CHL, the first spatial mode shows the high influence of coastal nutrients outputs (mainly continental estuaries and diffused coastal sources) and the lower concentration in the well stratified central and northern part of the North Sea compared to the southern bight and the eastern English Channel. The spatial trends described by the first mode are permanent features during the year, although slightly enhanced during the summer and reduced during winter. The second spatial mode correspond to the main algal blooming events (spring and autumn) with increased concentrations in the whole southern bight of the north sea, around the Isle of Wight and in frontal alike structure north-west from Denmark. The third Eofs describes well the dynamics of an early phytoplankton bloom occurring in march along the Norwegian coast, where a strong stratification induced by an output of cold water from Baltic Sea provides good light conditions to phytoplankton. Concerning TSM, the first spatial mode shows the dominant influence of large estuaries and of resuspension from shallow coastal sedimental plains. The patterns suggest a general transport of sediments from south-east England up to the northern Dutch coastal waters, as a clear distinction between the stratified northern part and the well mixed and charged southern and German bights. Although these trends are permanent during the year, the range of the spatial variations are slightly reduced during the summer, following the reduction of resuspension, of total sediment outputed by rivers and of advection along continental coasts. The second mode shows a clear seasonal signal. The winter influence of the second spatial mode can be understood as general sediment enrichment due to higher resuspension, but a clear influence of intense winter terrestrial water outflows leading to lower sediment concentration in the plumes then in the surrounding waters. This is clear for the Elbe river discharge, the whole natural part of the Wadden Sea and the Seine river plume. The Scheelde and Thames rather seems to be just neutralizing the seasonal TSM resuspension signal. The Rhine river discharge seems to make exception as no influence is detected in the second spatial mode. During summer, the contribution of the second EOF is reversed with a general reduction of suspended matter concentration in most part of the area but some local sediment enrichment at specific river discharges. Original MERIS CHL and TSM images were filled and reconstructions were produced at a daily interval based on a linear interpolation of the temporal modes. From this, weekly averages could be calculated at stations such as the turbidity maximum of the Scheelde river plume, showing the onset of the spring bloom co-occurring with a period characterised both by the TSM seasonal reduction and by important TSM temporal variability. [less ▲]

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See detailDINEOF-based bias correction of SEVIRI sea surface temperature using Metop-A/AVHRR and ENVISAT/AATSR SST
Tomazic, Igor ULg; Alvera Azcarate, Aïda ULg; Barth, Alexander ULg et al

Poster (2013)

Satellite-derived sea surface temperature (SST) show inter-sensor and inter-regional differences (biases) due to their technical characteristics, multispectral algorithm limitations and the changing ... [more ▼]

Satellite-derived sea surface temperature (SST) show inter-sensor and inter-regional differences (biases) due to their technical characteristics, multispectral algorithm limitations and the changing physical properties of the measured environments. The bias correction is usually calculated as a difference between the SST measurements from two sensors where one is defined as the reference (e.g. ENVISAT/AATSR). These empirical bias fields show gaps due to the satellite characteristics (e.g. narrow swath in case of AATSR) and to the presence of clouds or other atmospheric contamination sources. We present a bias correction approach based on DINEOF (Data Interpolating Empirical Orthogonal Functions) for reconstructing missing data. Two different approaches for deriving SST bias fields were used: analysing SST biases based on reconstructed SST differences or based on differences of the reconstructed SST fields. The method is applied at a large scale (European seas) and at a regional scale (e.g. Mediterranean Sea) to correct SEVIRI and Metop-A/AVHRR SST measurements using ENVISAT/AATSR as a corrector. For SEVIRI we additionally used Metop-A/AVHRR SST as a corrector to analyse the impact of ENVISAT/AATSR failure. Corrected SST fields based on both approaches were validated against independent in situ buoy SST data or with ENVISAT/AATSR SST data for areas without in situ data (e.g. eastern Mediterranean). The method is also compared to the operational bias correction method at Meteo-France/CMS that uses a temporal and spatial averaging. Results show that both approaches lead to near-zero biases when compared to AATSR SST measurements, although the differences of reconstructions exhibit much higher standard deviation (> 0.6 K) compared to the reconstruction of differences (< 0.5 K). Comparison with in situ data expectedly depends on the initial comparison between AATSR and in situ SST for specific regions. [less ▲]

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See detailLe dîner de Noël à 15 litres de pétrole
Ozer, Pierre ULg; Perrin, Dominique ULg

Article for general public (2007)

En cette semaine de Noël, et alors que le réchauffement climatique et la concentration en dioxyde de carbone (CO2) occupent une place croissante dans le débat politique et la préoccupation des citoyens ... [more ▼]

En cette semaine de Noël, et alors que le réchauffement climatique et la concentration en dioxyde de carbone (CO2) occupent une place croissante dans le débat politique et la préoccupation des citoyens, nous avons décortiqué les publicités de notre hypermarché le plus proche pour préparer le repas familial tant attendu. [...] [less ▲]

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See detailDineren onder vrienden (en rivalen). Literaire prijzen, netwerken en consecratiestrategieën
Dozo, Björn-Olav ULg; Lacroix, Michel

in Freespace Nieuwzuid (2008), 32

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See detailDineren onder vrienden (en rivalen). Literaire prijzen, netwerken en consecratiestrategieën
Spinoy, Erik ULg; De Pourcq, Maarten; Van Nuijs, Laurence

in Freespace Nieuwzuid (2008), 8(32), 54-69

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See detailDiode laser measurements of N2-broadened line widths in the ν1 band of OCS
Mouchet, Anne ULg; Blanquet, G.; Herbin, P. et al

in Canadian Journal of Physics (1985), 63

A tunable diode laser spectrometer has been used to perform measurements of pressure-broadening coefficients for 20 vibration-rotation lines in the ν<sub>1</sub> band of [sup]16[/sup]O[SUP]12[/SUP]C[SUP ... [more ▼]

A tunable diode laser spectrometer has been used to perform measurements of pressure-broadening coefficients for 20 vibration-rotation lines in the ν<sub>1</sub> band of [sup]16[/sup]O[SUP]12[/SUP]C[SUP]32[/SUP]S perturbed by N[sub]2[/sub]. Calculations of these broadening coefficients have been carried out on the basis of the Anderson-Tsao-Curnutte theory and by considering an improved semiclassical impact theory. [less ▲]

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See detailDionne Brand
Mergeai, Mathilde ULg

Article for general public (2012)

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See detailDioxin accumulation in residents around incinerators
Fierens, S.; Mairesse, H.; Hermans, C. et al

in Journal of Toxicology and Environmental Health. Part A (2003), 66(14), 1287-1293

To evaluate the human exposure impact of municipal waste incinerators, dioxin and coplanar polychlorinated biphenyl (PCB) concentrations were determined in blood of 84 subjects who resided approximately ... [more ▼]

To evaluate the human exposure impact of municipal waste incinerators, dioxin and coplanar polychlorinated biphenyl (PCB) concentrations were determined in blood of 84 subjects who resided approximately 18 yr in the vicinity of two old incinerators, one located in a rural area (n = 51) and the other in an industrial area (n = 33). These subjects were compared with 63 controls from an unpolluted area. While no change was found in contaminant levels in residents living around the incinerator in the industrial area, subjects residing around the incinerator in the rural area possessed significantly higher serum levels of dioxins (38 vs. 24 pg TEQ/g fat) and coplanar PCBs (10 vs. 7 pg TEQ/g fat) than controls. These results were confirmed by multiple-regression analysis, showing that residence around the incinerator in the rural area (partial r(2) = .18) was the major contributor to dioxin accumulation followed by age (partial r(2) = .07). A two-way analysis of variance (ANOVA) on age-adjusted dioxin levels revealed a significant interaction between residence around incinerators and the consumption of fat from local origin, especially bovine and poultry products. Although age-adjusted dioxin levels in controls did not vary with local animal fat consumption, concentrations of dioxins in subjects living around the incinerators increased proportionally to their intake of local animal fat, with almost a doubling in subjects with a fat intake higher than 150 gfat/wk. Extrapolation from these data suggests that a significant increase of dioxin body burden is likely to occur only when dioxin emissions exceed 5 ng TEQ/Nm(3), a threshold considerably above most emissions standards currently in force. [less ▲]

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See detailDioxin Analyses in practice
Focant, Jean-François ULg

Learning material (2008)

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See detailDioxin Analyses. The Dogs Bark, but the Caravan Goes on...
Focant, Jean-François ULg

Scientific conference (2014, April 28)

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See detailDioxin analysis in feed: cell-based assay versus mass spectrometry method
Scippo, Marie-Louise ULg; Rybertt, Soledad; Eppe, Gauthier ULg et al

in Accreditation and Quality Assurance (2006), 11(1-2), 38-43

In the determination of contaminants (dioxins, polychlorinated biphenyls, polyaromatic hydrocarbons), cell-based assays are useful methods for screening purposes: they are mainly characterized by high ... [more ▼]

In the determination of contaminants (dioxins, polychlorinated biphenyls, polyaromatic hydrocarbons), cell-based assays are useful methods for screening purposes: they are mainly characterized by high sample throughput and lower costs than the Mass Spectrometry (MS)-based methods. Although cell-based assays can be sensitive enough for the determination of dioxins and related substances in agreement with the presently tolerable limits in food and feed (Regulation No. 2375/2001/EC and Directive 2003/57/EC respectively), their lack of specificity make their use rather questionable in control laboratories. In this paper, we present and compare results obtained from the analysis of a limited number of feed samples by both gas chromatography-high resolution mass spectrometry (GC-HRMS) and cell-based assay (DR-CALUX: dioxin responsive-chemically activated luciferase gene expression) methods. The DR-CALUX screening led to less than 10% false non-compliant and no false compliant results. In addition, there is a good correlation between GC-HRMS and DR-CALUX data. However, these preliminary results have to be confirmed on a larger number of samples to demonstrate that total toxic equivalent (TEQ), including dioxins, furans and dioxin-like polychlorobiphenyls (PCBs) can be monitored in feed and food with a cell-based assay. [less ▲]

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See detailDIOXIN BODY BURDEN AMONG BLOOD DONORS BEFORE AND AFTER THE BELGIAN DIOXIN/PCB INCIDENT
Debacker, Noemi; Sasse, André; Van Wouwe, Nathalie et al

in Organohalogen Compounds (2004)

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