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See detailOn women’s bodies. Religion and female circumcision in Egypt
Mescoli, Elsa ULg

Conference (2013, April 10)

Among discourses about female circumcision, frequent are those which attribute it to religious beliefs, in particular Islamic ones. An ethnographic research conducted in Egypt, lead me to deconstruct such ... [more ▼]

Among discourses about female circumcision, frequent are those which attribute it to religious beliefs, in particular Islamic ones. An ethnographic research conducted in Egypt, lead me to deconstruct such simplistic association, in order to explore how we can (and if is it possible to) consider such a practice as a performing of religion on women’s bodies. In fact, in the context considered, first of all not only the Islamic religion is called into question, but also the Christian one; secondly, social dynamics are deeply intertwined with spiritual beliefs. In this framework, female circumcision has a precise role in the definition of the healthy sexuality of the couple and in the maintaining of the very same social order insofar it reflects a cosmic one. As a matter of fact, on the one hand religion is functional to legitimize a practice exerted upon women’s bodies which is perceived as essential to regulate social interactions, in the domestic context as well as in the public space. On the other hand, discourses and acts promoting and abandonment of female circumcision rely they themselves on religious precepts. These complex dynamics need to be deeply explored, in order to produce a wider knowledge about a controversial practice. The aim of my paper is to give voice to the literature on the subject and to the social actors involved in my ethnographic experience, among which several women themselves, so as to highlight in which ways religion (Islamic and Christian ones) and the practice of female circumcision are connected. [less ▲]

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See detailOn-axis spatially resolved spectroscopy of low redshift quasar host galaxies: HE 1503+0228, at z=0.135
Courbin, F.; Letawe, Géraldine ULg; Magain, Pierre ULg et al

in Astronomy and Astrophysics (2002), 394

We present the first result of a comprehensive spectroscopic study of quasar host galaxies. On-axis, spatially resolved spectra of low redshift quasars have been obtained with FORS1, mounted on the 8.2 m ... [more ▼]

We present the first result of a comprehensive spectroscopic study of quasar host galaxies. On-axis, spatially resolved spectra of low redshift quasars have been obtained with FORS1, mounted on the 8.2 m ESO Very Large Telescope, Antu. The spectra are spatially deconvolved using a spectroscopic version of the ``MCS deconvolution algorithm''. The algorithm decomposes two dimensional spectra into the individual spectra of the central point-like nucleus and of its host galaxy. Applied to HE 1503+0228 at z=0.135 (M[SUB]B[/SUB]=-23.0), it provides us with the spectrum of the host galaxy between 3600 Å and 8500 Å (rest-frame), at a mean resolving power of 700. The data allow us to measure several of the important Lick indices. The stellar populations and gas ionization state of the host galaxy of HE 1503+0228 are very similar to the ones measured for normal non-AGN galaxies. Dynamical information is also available for the gas and stellar components of the galaxy. Using deconvolution and a deprojection algorithm, velocity curves are derived for emission lines, from the center up to 4\arcsec away from the nucleus of the galaxy. Fitting a simple three-components mass model (point mass, spherical halo of dark matter, disk) to the position-velocity diagram, we infer a mass of M(r<1 kpc) = (2.0 +/- 0.3)x 10[SUP]10[/SUP] M[SUB]sun[/SUB] within the central kiloparsec of the galaxy, and a mass integrated over 10 kpc of M(r<10 kpc) = (1.9 +/- 0.3) x 10[SUP]11[/SUP] M[SUB]sun[/SUB], with an additional 10% error due to the uncertainty on the inclination of the galaxy. This, in combination with the analysis of the stellar populations indicates that the host galaxy of HE 1503+0228, is a normal spiral galaxy. Based on observations made with ANTU/UT1 at ESO-Paranal observatory in Chile (program 65.P-0361(A)), and with the ESO 3.5 m NTT, at La Silla observatory (program 62.P-0643(B)). [less ▲]

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See detailOn-axis spectroscopy of the host galaxies of 20 optically luminous quasars at z similar to 0.3
Letawe, Géraldine ULg; Magain, Pierre ULg; Courbin, F. et al

in Monthly Notices of the Royal Astronomical Society (2007), 378(1), 83-108

We present the analysis of a sample of 20 bright low-redshift quasars (M-B < -23 and z < 0.35) observed spectroscopically with the Very Large Telescope (VLT). The Focal Reducer/low dispersion Spectrograph ... [more ▼]

We present the analysis of a sample of 20 bright low-redshift quasars (M-B < -23 and z < 0.35) observed spectroscopically with the Very Large Telescope (VLT). The Focal Reducer/low dispersion Spectrograph (FORS1) spectra, obtained in Multi-Object Spectroscopy (MOS) mode, allow to observe simultaneously the quasars and several reference stars used to spatially deconvolve the data. Applying the Magain, Courbin, & Sohy (MCS) deconvolution method, we are able to separate the individual spectra of the quasar and of the underlying host galaxy. Contrary to some previous claims, we find that luminous quasars are not exclusively hosted by massive ellipticals. Most quasar host galaxies harbour large amounts of gas, irrespective of their morphological type. Moreover, the stellar content of half of the hosts is a young Sc-like population, associated with a rather low-metallicity interstellar medium. A significant fraction of the galaxies contain gas ionized at large distances by the quasar radiation. This large distance ionization is always associated with signs of gravitational interactions (as detected from images or disturbed rotation curves). The spectra of the quasars themselves provide evidence that gravitational interactions bring dust and gas in the immediate surrounding of the super massive black hole, allowing to feed it. The quasar activity might thus be triggered (1) in young gas-rich spiral galaxies by local events and (2) in more evolved galaxies by gravitational interactions or collisions. The latter mechanism gives rises to the most powerful quasars. Finally, we derive mass models for the isolated spiral host galaxies and we show that the most reliable estimators of the systemic redshift in the quasar spectrum are the tips of the Hα and Hβ lines. [less ▲]

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See detailOn-axis spectroscopy of the z =0.144 radio-loud quasar HE 1434-1600: an elliptical host with a highly ionized ISM
Letawe, Géraldine ULg; Courbin, F.; Magain, Pierre ULg et al

in Astronomy and Astrophysics (2004), 424

VLT on-axis optical spectroscopy of the z=0.144 radio-loud quasar HE 1434-1600 is presented. The spatially resolved spectra of the host galaxy are deconvolved and separated from those of the central ... [more ▼]

VLT on-axis optical spectroscopy of the z=0.144 radio-loud quasar HE 1434-1600 is presented. The spatially resolved spectra of the host galaxy are deconvolved and separated from those of the central quasar in order to study the dynamics of the stars and gas as well as the physical conditions of the ISM. We find that the host of HE 1434-1600 is an elliptical galaxy that resides in a group of at least 5 member galaxies, and that most likely experienced a recent collision with its nearest companion. Compared with other quasar host galaxies, HE 1434-1600 has a highly ionized ISM. The ionization state corresponds to that of typical Seyferts, but the ionized regions are not distributed in a homogeneous way around the QSO, and are located preferentially several kiloparsecs away from it. While the stellar absorption lines do not show any significant velocity field, the gas emission lines do. The observed gas velocity field is hard to reconcile with dynamical models involving rotating disk, modified Hubble laws or power laws, that all require extreme central masses (M>10[SUP]9[/SUP] M[SUB]o[/SUB]) to provide only poor fit to the data. Power law models, which best fit the data, provide a total mass of M(<10 kpc) = 9.2 × 10[SUP]10[/SUP] M[SUB]o[/SUB]. We conclude that the recent interaction between HE 1434-1600 and its closest companion has strongly affected the gas velocity and ionization state, from the center of the galaxy to its most external parts. Based on observations made with the ESO Very Large Telescope ANTU/UT1 at ESO-Paranal observatory, Chile (program 65.P-0361(A)). [less ▲]

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See detailOn-axis VLT spectroscopy of quasar host galaxies: HE 1503+0228, at z=0.135
Courbin, F.; Letawe, Géraldine ULg; Magain, Pierre ULg et al

in Active Galactic Nuclei: From Central Engine to Host Galaxy (2003)

Not Available

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See detailOn-farm contamination of animals with chemical contaminants
Saegerman, Claude ULg; Pussemier, Luc; Huyghebaert, André et al

in Revue Scientifique et Technique (International Office of Epizootics) (2006), 25(2), 655-673

Food products should not contain unsafe levels of chemical contaminants. However, it is not possible to monitor each and every one of the many thousands of chemicals that are used in our advanced ... [more ▼]

Food products should not contain unsafe levels of chemical contaminants. However, it is not possible to monitor each and every one of the many thousands of chemicals that are used in our advanced societies. Chemical contaminants in foodstuffs of animal origin may be classified into three categories: natural contaminants (e.g. mycotoxins), environmental contaminants linked to industrialisation and/or urbanisation (e.g. dioxins and dioxin-like compounds) and authorised chemical products (e.g. residues of veterinary medical products). Chemical hazards may contaminate foodstuffs of animal origin all the way from farm to fork. Contamination may occur in any of the different production systems, and it is difficult to make comparisons between production systems (e.g. extensive versus intensive farming systems) with regard to food safety. Even when we take into account the latest analytical methods, which can detect ever-smaller quantities of residues, the relative importance of chemical contaminants seems to have declined during recent decades due to improvements in information and prevention. Nonetheless, individual incidents can never be ruled out and may have serious economic, health or social repercussions. Particular attention must be paid to chemical hazards, in order to reduce as much as possible the risks to livestock and to the consumer. Continued monitoring and periodic reassessment of risks posed by these contaminants (at the national level) are needed to detect or anticipate new problems, so that appropriate actions can be taken in the interest of public health. More attention should be paid to the production of detailed information, especially with regard to background data (e.g. the objectives of the monitoring, sampling methods, chemicals to be analysed, analytical methods, detection limits, raw data and specified units), in order to obtain a better basis for risk assessment. Such risk assessment provides control authorities with an effective tool for the exchange of information and measures to be taken to ensure food safety. [less ▲]

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See detailOn-Line Aircraft Engine Diagnostic Using a Soft-Constrained Kalman Filter
Dewallef, Pierre ULg; Léonard, Olivier ULg; Mathioudakis, Kostas

in Proceedings of the ASME Turbo Expo 2004 (2004, June)

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See detailOn-line analysis of cracking in cortical bone under wedge penetration.
Alam, Khurshid; Kerckhofs, Greet ULg; Mitrofanov, Alexander V. et al

in Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine (2012), 226(9), 709-17

Understanding the mechanism of crack propagation during bone cutting is necessary for the development of realistic bone cutting models. This article studies the on-line fractural behaviour of cortical ... [more ▼]

Understanding the mechanism of crack propagation during bone cutting is necessary for the development of realistic bone cutting models. This article studies the on-line fractural behaviour of cortical bone caused by penetration with a sharp metallic wedge mounted on an on-line loading stage within an X-ray microfocus computed tomography system. The experimental results demonstrated anisotropy in crack propagation depending on the penetration direction with regard to the longitudinal bone axis and relate the crack growth to the extent of penetration. Scanning electron microscopy is performed to analyse the mechanism of cracking in the two phase microstructure of compact bone. [less ▲]

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See detailOn-line automated PLE and multi-column clean-up system for PCDD/Fs and PCB analysis in food samples
Focant, Jean-François ULg; Shirkhan, Hamid; De Pauw, Edwin ULg

in Organohalogen Compounds (2002), 55

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See detailOn-line combination of dialysis and liquid chromatography for the automated determination of oxprenolol in human plasma
Toussaint, B.; Ceccato, Attilio ULg; Chiap, Patrice ULg et al

in Journal de Pharmacie de Belgique (1995), 50

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See detailOn-line Cough Recognizer System
Van Hirtum, Annemie; Aerts, Jean-Marie; Berckmans, Daniel et al

in Journal of the Acoustical Society of America (1999), 106(4:2), 2191

Until now the intelligent, controlled, and automated use of acoustic bio-responses in cattle houses as indicators of animal condition has been limited to human perception. Although the appearance of ... [more ▼]

Until now the intelligent, controlled, and automated use of acoustic bio-responses in cattle houses as indicators of animal condition has been limited to human perception. Although the appearance of coughing, sneezing, etc., may point to an environmental deficiency in the animal habitat or the presence of diseases amoung the cattle, in order to use this kind of acoustic information as a bio-response signal in practice it is necessary to develop a simple on-line algorithm. In this paper an on-line registration technique for pig coughing is presented. The application of a distance function to a spectral sound analysis allows us to distinguish coughing from other animal and environmental sounds like metal clanging, grunting, noise, etc. The sound database was collected on a group of six healthy animals [less ▲]

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See detailOn-line coupling of cyclodextrin mediated nonaqueous capillary electrophoresis to mass spectrometry for the determination of salbutamol enantiomers in urine
Servais, Anne-Catherine ULg; Fillet, Marianne ULg; Mol, Roelof et al

in Journal of Pharmaceutical & Biomedical Analysis (2006), 40(3), 752-757

The usefulness of the on-line coupling of nonaqueous capillary electrophoresis (NACE) with electrospray ionization (ESI) mass spectrometry (MS) using heptakis(2,3-di-O-acetyl-6-O-sulfo)-beta-cyclodextrin ... [more ▼]

The usefulness of the on-line coupling of nonaqueous capillary electrophoresis (NACE) with electrospray ionization (ESI) mass spectrometry (MS) using heptakis(2,3-di-O-acetyl-6-O-sulfo)-beta-cyclodextrin (HDAS-beta-CD) was demonstrated for the enantioselective determination of low concentrations of salbutamol in human urine. After optimization of several parameters, such as sheath-liquid composition and flow rate, nebulizing gas pressure, CE counter-pressure and position of the CE capillary outlet, a limit of quantification of 18 and 20 ng/ml was obtained for salbutamol enantiomers. Moreover, the relative standard deviation values for repeatability at a concentration of 30 ng/ml were below 7% for both enantiomers. Typical regression lines obtained after application of a simple linear regression model revealed a pod relationship between peak area and analyte concentration (with 0.9988 and 0.9966 as coefficients of determination). This paper proposes an easy to use and sensitive NACE-MS method to determine enantiomers of a basic chiral drug in biological fluids preceded by solid-phase extraction as sample cleanup. (c) 2005 Elsevier B.V. All rights reserved. [less ▲]

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See detailOn-Line Coupling of Partial Filling-Capillary Zone Electrophoresis with Mass Spectrometry for the Separation of Clenbuterol Enantiomers
Toussaint, B.; Palmer, M.; Chiap, Patrice ULg et al

in Electrophoresis (2001), 22(7), 1363-72

The on-line coupling of capillary zone electrophoresis with mass spectrometry (CZE-MS) for the separation of enantiomers is hampered by the presence of nonvolatile chiral selectors such as cyclodextrins ... [more ▼]

The on-line coupling of capillary zone electrophoresis with mass spectrometry (CZE-MS) for the separation of enantiomers is hampered by the presence of nonvolatile chiral selectors such as cyclodextrins in the separation buffer. This problem can be overcome by use of the partial filling technique where only a part of the capillary is filled with the separation buffer containing chiral selectors. Since the electroosmotic flow is almost completely suppressed at acidic pH, that dimethyl-beta-cyclodextrin is neutral, no free cyclodextrin would reach the MS detector when using a partially filled capillary. By this method, clenbuterol enantiomers were successfully resolved and separated from salbutamol (internal standard) in aqueous solution and in plasma samples. A solid-phase extraction (SPE) was used for the preparation of plasma samples before analysis. [less ▲]

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See detailOn-line Damage Assessment Using Operating Deflection Shapes
Pascual, Rodrigo; Golinval, Jean-Claude ULg; RAZETO, Mario

Conference given outside the academic context (1999)

Detailed reference viewed: 17 (0 ULg)