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5 octobre 1961,création de la Délégation générale du Québec  Paris

法语学习 2012年第4期 59-63页

作者： Gilbert Pilleul 蓝霸 secrétaire général de la CFQLMC-France

Dans la mémoire collective,le souvenir du《Vive le Québec libre!》2 prononcé par legénéral de Gaulle,du balcon de l'htel de ville de Montréal,occulte 3 en partie voire totalement la place que le Québec ou le

关键词：法语学习学习方法阅读知识阅读材料

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Measurement of Natural Radioactivity and Radon Exhalation Rate in Coal Ash Samples from a Thermal Power Plant

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World Journal of Nuclear Science and Technology 2016年第3期6卷 153-160页

作者： Aziz Boukhair Laila Belahbib Khadija Azkour Hamid Nebdi Mohammed Benjelloun Abdelmjid Nourreddine Laboratoire de Physique Nucléaire Atomique et Moléculaire Département de Physique Faculté des Sciences Université Chouaib Doukkali El Jadida Morocco Centre Régional des Métiers de l’Education et de la Formation El Jadida Morocco Ministère de l’Intérieur Secrétariat général Province d’El Jadida Morocco Groupe RaMsEs Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg Strasbourg France

Coal is the main energy source for electricity generation in the world. In Morocco, 37% of electricity generation comes from combustion coal in thermal power plants. This combustion process generates large amounts of fly and bottom ashes. In recent years, these ashes became a great topic of interest because of their different uses and especially in construction materials. In this work, we assess radiation risks due to natural radioactivity in samples of fly and bottom ashes collected from JLEC (Jorf Lasfar Energy Company) thermal power plant, and different analyses are performed through two nuclear techniques such as gamma spectrometry and alpha dosimetry based on the use of LR115 films detectors. Our analysis shows that 226Ra activities and 232Th in both ash samples are well above the permissible activity. The values of the external risk index (Hex) and internal one (Hin) for these ashes are below unity, with the exception of 1.28 in fly ash for Hin. The obtained values for the equivalent radium Raeq and annual effective doses Ėin fly and bottom ashes are 324 Bq/kg and 210 Bq/kg, and 0.18 mSv/y and 0.11 mSv/y, respectively. The surface radon exhalation rates for the samples of fly and bottom ashes are 276 mBq⋅m-2⋅h-1 and 381 mBq⋅m-2⋅h-1, respectively. Based on these results, we have shown that fly ash and bottom one from thermal power plant JLEC didn’t have, in any case, a health risk to the public so it can be effectively used in various construction activities.

关键词： Natural Radioactivity Gamma Spectrometry LR115 Fly Ash Bottom Ash Equivalent Radium Annual Effective Doses Exhalation of Radon

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Assessment of the Radiological Impact on the Environment near a Storage Site of Coal Ashes in a Thermal Power Plant

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World Journal of Nuclear Science and Technology 2016年第4期6卷 206-216页

作者： Aziz Boukhair Laila Belahbib Khadija Azkour Hamid Nebdi Mohammed Benjelloun Abdelmjid Nourreddine Laboratoire de Physique Nucléaire Atomique et Moléculaire Département de Physique Faculté des Sciences Université Choua&#239 b Doukkali El Jadida Morocco Laboratoire de Physique Nucléaire Atomique et Moléculaire Département de Physique Faculté des Sciences Université Choua&#239 b Doukkali El Jadida Morocco Centre Régional des Métiers de l’Education et de la Formation El Jadida Morocco Ministère de l’Intérieur Secrétariat Général Province d’El Jadida Morocco Groupe RaMsEs Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg Strasbourg France

The radiological impact of coal ashes, with enhanced natural radioactivity in the storage site, is due to the presence of naturally occurring radionuclides. Some of these radionuclides have a radioactive period of several million years and will, therefore, have time to migrate to the soil, atmospheric air, surface water, and groundwater. This impact depends mainly on the activity of these coal ashes, the duration of exposure to such waste, transfers to the air, and the leaching phenomenon by rainwater. In this study, and so as to assess the radiological impact of coal ashes of the storage site of the JLEC-Morocco thermal power plant on environment, some analyses are performed by alpha dosimetry and a digital dosimeter on samples of coal ashes, soil, atmospheric air, surface water and groundwater belonging to a perimeter of 10 km around that site. The obtained results show that, within the studied area, the radiological impact on the soil of the coal ashes of the storage site is insignificant even though the concentrations of radon in the near vicinity (1 to 2 km) are moderately important, and remain below 200 Bq/m3. In the atmospheric air, this impact remains medium for the neighborhoods of the storage site (2 to 3 km) with radon activities superior to 10 Bq/m3. These results also show that there may be a water contamination of wells located at the storage site without any transfer of radioactivity into the groundwater of the area studied where the concentrations of radon are less than 11.1 Bq/l.

关键词： Storage Site Coal Ashes Environment Radiological Impact Soil Water Atmospheric Air LR115 Radon Volumetric Activity Exhalation of Radon

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Hepatitis B Surface Antigen and Hepatitis C Virus Antibodies among Drug Users in Burkina Faso

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Advances in Microbiology 2024年第1期14卷 92-104页

作者： Sylvie Zida Kadari Cissé Odette Ky-Zerbo Dinanibè Kambiré Serge Théophile Soubeiga Simon Tiendrebéogo Fatou Sissoko Issa Sory Célestine Ki-Toé Solange Dioma Djeneba Zorom Adama Ouédraogo Cedric Dimitri Axon Hien Mahamoudou Sanou Seni Kouanda Henri Gautier Ouédraogo Institut de Recherche en Sciences de la Santé Ouagadougou Burkina Faso Dé partement de G&eacuteographie Universit&eacute Norbert ZONGO Koudougou Burkina Faso secré tariat permanent du Conseil national de lutte contre le Sida et les IST (SP/CNLS-IST) Ouagadougou Burkina Faso Initiative Privé e et Communautaire pour la Sant&eacute et la Riposte au VIH/SIDA au Burkina Faso (IPC/BF) Ouagadougou Burkina Faso Unité de Formation et de Recherche en Sciences de la Sant&eacute (UFR-SDS) Universit&eacute Joseph KI-ZERBO Ouagadougou Burkina Faso

Introduction: The epidemiology of both hepatitis B virus (HBV) and hepatitis C virus (HCV) infections among drug users (DUs) is little known in West Africa. The study aimed to assess the prevalence of hepatitis B and C viruses among drug users in Burkina Faso. Methodology: This was a cross-sectional biological and behavioral survey conducted between June and August 2022, among drug users in Ouagadougou and Bobo Dioulasso, the two main cities of Burkina Faso. A respondent-driven sampling (RDS) was used to recruit drug users. Hepatitis B surface antigen was determined using lateral flow rapid test kits and antibodies to hepatitis C virus in serum determined using an Enzyme-Linked Immunosorbent Assay. Data were entered and analyzed using Stata 17 software. Weighted binary logistic regression was used to identify the associated factors of hepatitis B and C infections and a p-value Results: A total of 323 drug users were recruited with 97.5% males. The mean age was 32.7 years old. The inhaled or smoked mode was the most used by drug users. The adjusted hepatitis B and hepatitis C prevalence among study participants were 11.1% and 2.3% respectively. The marital status (p = 0.001), and the nationality (p = 0.011) were significantly associated with hepatitis B infection. The type of drug used was not significantly associated with hepatitis B infection or hepatitis C infection. Conclusion: The prevalence of HBsAg and anti-HCV antibodies among DUs are comparable to those reported in the general population in Burkina Faso. This result suggests that the main routes of contamination by HBV and HCV among DUs are similar to those in the population, and could be explained by the low use of the injectable route by DUs in Burkina Faso.

关键词： Drug Users Hepatitis C Hepatitis B Prevalence Burkina Faso

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