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Peer Reviewed
See detailInvestigation of germinal centres in vivo and in vitro in the context of prion disease
Demonceau, C.; Defaweux, Valérie ULiege; Flandroy, S. et al

Poster (2005, April)

Detailed reference viewed: 9 (2 ULiège)
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See detailInvestigation of height-resolved information in ground-based high-resolution Fourier infrared solar spectra above the Jungfraujoch
Barret, Brice; De Mazière, Martine; Demoulin, Philippe ULiege et al

in Proceedings of the Quadriennal ozone symposium - Sapporo 2000 (2000)

Vertical profiles of HF, O3, and HNO3 have been retrieved from high-resolution solar spectra recorded at the Jungfraujoch observatory (Swiss Alps, 46.5°N latitude, 8.0°E longitude, 3.58 km altitude). Two ... [more ▼]

Vertical profiles of HF, O3, and HNO3 have been retrieved from high-resolution solar spectra recorded at the Jungfraujoch observatory (Swiss Alps, 46.5°N latitude, 8.0°E longitude, 3.58 km altitude). Two algorithms for the retrieval of vertical concentration profiles based on the Optimal Estimation Method have been used. The results of the vertical profile retrievals are compared to the Halogen Occultation Experiment (HALOE) profiles, to the Cryogenic Infrared Spectrometers and Telescope (CRISTA2) second mission (August 1997) profiles for HNO3 and O3 and also to nearby ozone sondes and lidar profile for O3. [less ▲]

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See detailInvestigation of human JC and BK polyomaviruses in breast carcinomas
Hachana, Mohamed Ridha ULiege; Amara, Khaled; Ziadi, Sonia et al

in Breast Cancer Research and Treatment (2011)

We have previously showed the presence of the simian virus 40 (SV40) and the mouse mammary tumor virus (MMTV)-like in a significant proportions of Tunisian breast carcinomas. However, to date there are no ... [more ▼]

We have previously showed the presence of the simian virus 40 (SV40) and the mouse mammary tumor virus (MMTV)-like in a significant proportions of Tunisian breast carcinomas. However, to date there are no published studies concerning evaluation of the possible implication of the human polyomaviruses JC (JCV) and BK (BKV) in breast carcinomas. The presence of JCV and BKV DNA was investigated by PCR in a 123 primary breast carcinomas and matched adjacent non-tumor breast tissues. The results were correlated to clinicopathological and virological parameters. JCV T-antigen DNA was detected in 23% of breast carcinoma cases; however, all cases were negative for BKV. JCV T antigen PCR products were further confirmed as authentic JCV genome by direct sequencing. JCV was found in invasive ductal carcinomas (28/112 cases) but not in invasive lobular carcinomas (0/5) or medullary carcinomas (0/6). JCV DNA presence correlates inversely with the expression of estrogen (P = 0.022) and progesterone (P = 0.008) receptors. JCV DNA presence correlates also with "triple negative" phenotype (P = 0.021). With regard to virological data, a trend toward an inverse correlation was noted between the presence of JCV and SV40 (P = 0.06). Moreover, significant correlation was found between multiple viral infection (JCV, and/or SV40, and/or MMTV-like in the same tumor) and "triple negative" phenotype (P = 0.001) and also with p53 accumulation (P = 0.028). To the best of our knowledge, this is the first study demonstrating the presence of JCV in a subset of breast carcinomas. Also our results suggest that "triple negative" breast carcinomas are viral-related tumors. [less ▲]

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See detailInvestigation of human papillomavirus (HPV) in breast cancer among women from Tunisia
Trimeche, Mounir; Hachana, Mohamed Ridha ULiege; Ziadi, Sonia et al

in Virchows Archiv : An International Journal of Pathology (2007)

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See detailInvestigation of human papillomavirus in bladder cancer in a series of Tunisian patients
Ben Selma, Walid; Ziadi, Sonia; Ben Gacem, Riadh et al

in Pathology - Research & Practice (2010), 206(11), 740-743

Background: Association between human papillomavirus (HPV) infection and the development of bladder cancer is variable. Furthermore, the prevalence of HPV DNA in bladder carcinoma subtypes varies from ... [more ▼]

Background: Association between human papillomavirus (HPV) infection and the development of bladder cancer is variable. Furthermore, the prevalence of HPV DNA in bladder carcinoma subtypes varies from study to study. To clarify the impact of HPV infection on the development of bladder carcinoma, we performed a retrospective study on Tunisian patients for the status of HPV infection in urothelial carcinoma, squamous cell carcinoma and adenocarcinoma. Methods: A total of 125 formalin-fixed, paraffin-embedded archival tissue of bladder carcinoma were reviewed and classified according to the World Health Organization (WHO) classification of tumors (119 urothelial carcinomas, five squamous carcinomas and one adenocarcinoma). Anogenital HPV DNA detection was performed with three different polymerase chain reaction (PCR) techniques. The first one, using primers pU-2R/pU-1M specific to high-risk oncogenic HPV. The second one, using primers PU-2R/PU-31B specific to low-risk oncogenic HPV and the third one, employing consensus primers (E1-547R/E1-350L). Results: No evidence of HPV infection was detected by morphological examination and PCR in any case of bladder carcinoma. Conclusion: Our study shows that anogenital HPV investigated are not associated with the pathogenesis of bladder cancer in Tunisia, however, the possibility that other subtypes of HPV contribute to bladder carcinogenesis remains to be clarified. [less ▲]

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See detailAn investigation of inland water soundscapes: Which sonic sources influence acoustic levels?
Bolgan, Marta ULiege; O' Brien, Joanne; Winfield, Ian J. et al

in Proceedings of meetings on acoustics Acoustical Society of America 27(1) (2016)

Detailed reference viewed: 15 (2 ULiège)
Peer Reviewed
See detailInvestigation of interactions between phospholipids, cholesterol and surfactin by atomic force microscopy and differential scanning calorimetry
Eeman, Marc; Nylander, Tommy; Dufrêne, Yves et al

Poster (2006)

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See detailInvestigation of intravalence, core-valence and core-core electron correlation effects in polonium atomic structure calculations
Quinet, Pascal ULiege

in Journal of Quantitative Spectroscopy & Radiative Transfer (2014), 145

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See detailInvestigation of Ion Mobility coupled with mass spectrometry (IM-MS) for the screening of pesticide residues in food
Joly, Laure; Goscinny, Séverine ULiege; Touilloux et al

Poster (2011, April)

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See detailInvestigation of Ion Mobility coupled with mass spectrometry (IMMS) for the screening of pesticide residues in food
Goscinny, Séverine ULiege; Touilloux, Romain; Joly, Laure et al

Conference (2011, June)

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See detailInvestigation of liquid flow morphology inside a structured packing using X-ray tomography
Janzen, Anna; Steube, Julia; Aferka, Saïd et al

in Chemical Engineering Science (2013), 12

In this work X-ray tomography is used to analyse the influence of liquid viscosity on liquid flow in a column filled with Mellapak Plus 752Y structured packing. Tomographic measurements are performed at ... [more ▼]

In this work X-ray tomography is used to analyse the influence of liquid viscosity on liquid flow in a column filled with Mellapak Plus 752Y structured packing. Tomographic measurements are performed at various column heights for different liquid flow rates. Water and glycerine aqueous solutions are successively used as working liquids in order to quantify the influence of liquid viscosity on hydrodynamic quantities such as liquid hold-up and gas-liquid interfacial area. As expected, both liquid hold-up and gas-liquid interfacial area increase with liquid flow rate. An increase of liquid viscosity has also a positive impact on liquid hold-up and on gas-liquid interfacial area. In all cases, the measured quantities are not constant along the bed height, leading to fluctuating axial profiles. Furthermore, tomographic images are used to identify different liquid flow patterns (films, contact-point liquid, flooded regions) in the irrigated cross section images. A method based on morphological techniques is proposed to quantify the fraction of liquid flow within each flow pattern depending on flow rate and liquid viscosity. [less ▲]

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See detailInvestigation of liquid flow pattern inside a structured packing using X-ray tomography
Aferka, Saïd ULiege; Steube, Julia; Janzen, Anna et al

in Proceedings of the 6th International Symposium on Process Tomography, Cape Town, South Africa (2012)

This work focuses on the analysis of X-ray tomographic images of liquid flow distribution within a 1 m high packed column of 10 cm diameter, filled with four Mellapak Plus 752Y elements. Tomographic ... [more ▼]

This work focuses on the analysis of X-ray tomographic images of liquid flow distribution within a 1 m high packed column of 10 cm diameter, filled with four Mellapak Plus 752Y elements. Tomographic measurements are performed at various column heights for different liquid flowrates. Water and aqueous glycerine solutions are successively used as working liquids in order to quantify the influence of liquid viscosity on the spatial distribution of hydrodynamic quantities such as liquid holdup and gas-liquid interfacial area. Logically, both liquid holdup and gas-liquid interfacial area increase with liquid flow rate. An increase of liquid viscosity has also a positive impact on liquid holdup and on gas-liquid interfacial area. In all cases, the measured quantities are not constant along the bed height, leading to fluctuating axial profiles. Depending on the liquid viscosity and flowrate, different liquid flow patterns (films, rivulets, flooded channels) are observed in the irrigated cross section images. A method based on morphological techniques is proposed to quantify the fraction of liquid flow which belongs to each flow pattern. [less ▲]

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See detailInvestigation of Mainstream Tobacco Smoke Particulate Phase by HS-SPME-GC×GC-HRTOFMS
Lizak, Radoslaw ULiege; Huston-Fulmer, L; Binkley, J et al

Poster (2015, May)

Detailed reference viewed: 4 (1 ULiège)
See detailInvestigation of Mainstream Tobacco Smoke Particulate Phase by HS-SPME-GC×GC-HRTOFMS
Lizak, Radoslaw ULiege; Brokl, M; Wright, C et al

Scientific conference (2015, May)

Detailed reference viewed: 7 (2 ULiège)
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See detailInvestigation of Mass Transfer on Single Droplets for the Reactive Extraction of Zinc with D2EHPA
Altunok, Mehmet Yücel; Kalem, Murat; Pfennig, Andreas ULiege

in AIChE Journal (2012), 58(5), 1346-1355

Detailed reference viewed: 45 (24 ULiège)
See detailInvestigation of mechanochemical processes by single-molecule AFM
Willet, Nicolas ULiege

Scientific conference (2012, March 23)

Detailed reference viewed: 34 (0 ULiège)
See detailInvestigation of methane production in Tunisian MSW landfills
Hiligsmann, Serge ULiege; Mhiri, F.; Belaid, S. et al

Poster (2008, May)

Detailed reference viewed: 15 (3 ULiège)