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Integration of Remote Sensing and GIS in Studying Land Cover Trends and Conditions in the Middle Ziz Oasis,Morocco

International Journal of Geosciences 2013年第7期4卷 1018-1023页

作者： Ali Essahlaoui abba mohamed Eddahby Lhou Faouzi mohamed Larabi Abdelkader Research Group“Water Sciences and Environmental Engineering” Laboratory of Geo-Engineering and EnvironmentFaculty of SciencesMy Ismail UniversityMeknesMorocco Laboratory LIMEN“Water Resources&Information Technology” Mohammadia School of EngineersRabatMorocco Department of Geology Faculty of SciencesDhar El MahrazFezMorocco

A better understanding of the changing patterns of land use and vegetation cover is a major concern for countries whose ecosystems are under severe degradation. Indeed, the dynamics of land have direct implications on the availability of natural resources. The palm grove, of oases of Errachidia region, plays an important role in the environmental, social and economic of this region. This research was conducted in the Ziz middle, which is affected by changes in the conditions and composition of land cover change. The application of remote sensing, geographic information systems and satellite imagery analysis with multi-temporal and spatial land use provides, for territorial managers, data updated and improved and a synopsis for effective management of natural resources. This research explores the possibility of identifying, monitoring and mapping land use change and land use on the dynamics of the palm grove in the past 40 years. Satellite images used are Landsat images and multi-temporal dates (MSS (1972), TM (1987), ETM + (2001, 2006 and 2011). These images were georeferenced and radiometrically corrected. In our study, the use of vegetation indices NDVI, SAVI and MASAVI, highlight the magnitude of changes in vegetation cover between 1972 and 2011. A regressive pronounced canopy is generally recognized in the Middle Ziz. This decline is explained by the combined effect of anthropic action (urbanization) and climatic conditions.

关键词： Morocco Remote Sensing GIS Ziz Watershed Dynamic of Land Use NDVI

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SAPHO Syndrome: About Three Cases and Review of the Literature

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Open Journal of Internal Medicine 2021年第2期11卷 109-121页

作者： abba abbasse Niasse Moustapha Diaby Ladji mohamed Ali Hassan Rheumatology Department Aristide Le Dantec Teaching Hospital Dakar Senegal

Background: SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis, osteitis) is both a dermatological and a rheumatological entity, with the common denominator of an aseptic inflammatory process, the bone manifestations of which are the essential element of the diagnosis. Despite its chronic and recurrent nature, SAPHO syndrome is very rarely the cause of major disability, even after several decades of evolution. Objective: We want to illustrate through three clinical cases, the importance of the anamnesis, the clinic, the diagnostic criteria in the diagnosis of SAPHO syndrome. Presentation of the cases: We studied the clinical file of three patients consulted in the Rheumatology Department of the CHU Aristide LeDantec in Dakar, Senegal, between January 2012 and December 2020, suffering from SAPHO syndrome of diagnosis established in accordance with the diagnostic criteria of SAPHO syndrome proposed by Khan et al. of 1994. Conclusion: SAPHO syndrome is a rare pathological entity, over a period of 8 years we report 3 cases.

关键词： Anamnesis Clinical Diagnostic Criteria Female SAPHO Syndrome Senegal

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Preliminary Research Study for Antibiotics in Eggs Produced and Sold in Bamako, Mali

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Food and Nutrition Sciences 2022年第3期13卷 252-258页

作者： Dalané Bernadette Coulibaly mohamed El Béchir Naco Dougoutigui Tangara Fatoumata Tata Sow Fanta Kaba Camara Hamadoun abba Toure Madani Mariko Blaise Dackouo Seydou Moussa Coulibaly Benoit Yaranga Koumare Faculty of Pharmacy of Bamako/University of Technical and Technological Sciences of Bamako Bamako Mali National Health Laboratory Bamako Mali National Food Safety Agency Bamako Mali

The quality of agri-food products, in particular those of poultry origin, has now become an imperative. Because of the antibiotics used in poultry production, we are seeing the presence of antibiotic residues in products from poultry farming, especially eggs. Residues in eggs do not always comply with regulatory requirements, which can have harmful consequences for consumers such as: risk of allergies or risk of antibiotic resistance. This study was carried out with the aim of evaluating the presence of residues of veterinary antibiotics in eggs produced and marketed in the district of Bamako and surroundings. All samples were analyzed using the Premi ®Test which is a rapid detection kit for antibiotic residues in different materials. We collected 900 eggs from 10 farms and 10 markets in Bamako. Out of 900 eggs, 228 were tested. One hundred and eighty-nine (189) eggs tested negative for the presence of antibiotic residues, i.e. 82.9%;on the other hand, 39 were positive, i.e. 17.1%. This study clearly shows the presence of antibiotic residues in eggs from farms and various markets in Bamako and the surrounding area. This will allow us to continue our study at a later date to identify the types of antibiotic and to dose them.

关键词： Antibiotic Residues Eggs Mali

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Audit of the Physico-Chemical Quality of Amoxicillin Based Drugs Marketed in Senegal

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American Journal of Analytical Chemistry 2023年第9期14卷 351-361页

作者： Coulibaly Dalané Bernadette Sow Fatoumata Tata Naco mohamed El Béchir N’Diaye Mahamar Toure Hamadoun abba Mariko Madani Dackouo Blaise Diouf Diéry Koumare Benoit Yaranga Sarr Serigne Omar Faculty of Medicine Pharmacy and Odonto-Stomatology University Cheik Anta DIOP Dakar Dakar Sénégal Faculty of Pharmacy of Bamako University of Technical and Technological Sciences of Bamako (FAPH/USTTB) Bamako Mali National Health Laboratory of Mali Bamako Mali National Drug Control Laboratory of Senegal (LNCM) Dakar Sénégal

Non-compliant antibiotics pose problems of therapeutic efficacy at the level of the individual, but also a serious public health problem. The objective of our study was to evaluate the quality of generic amoxicillin (42 samples) by analytical methods in Dakar/Senegal. At 100% visual inspection of compliance;100% compliance uniformity test;at the dissolution test all > 80% (86.8% to 108.8%). The presence of amoxicillin with the following contents: Tablets (95.2% to 104.1%);Capsules (91.5% to 113.9%) and Suspensions drinkable (96.9% - 118.7%). All the samples in our study are 100% compliant according to the European and American pharmacopoeias (90% - 120%). Other studies should therefore be oriented in the direction of stability as well as the dosage of degradation products.

关键词： Quality Control Amoxicillin Analytical Methods

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Synthesis and Dielectric Properties of (0.80 - x)Pb(Cr1/5,Ni1/5,Sb3/5)O3-xPbTiO3-0.20PbZrO3Ferroelectric Ceramics

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Materials Sciences and Applications 2013年第11期4卷 746-750页

作者： Abdelhek Meklid Ahmed Boutarfaia Zelikha Necira Hayet Menasra Malika abba Laboratory of Applied Chemistry Materials Science Department Mohamed Kheider University of Biskra Biskra Algeria Laboratory of Applied Chemistry Materials Science Department Mohamed Kheider University of Biskra Biskra Algeria University of Ouargla Ouargla Algeria

Perovskite PZT variants were synthesized from stoichiometric oxide ratios of Pb, Zr, Ti, Cr, Ni and Sb. The oxide powders were mixed mechanically and calcinated, and then sintered to form the desired perovskite phase. The detailed structural and ferroelectric properties were carried out for sintered specimens. The results of X-ray diffraction showed that all the ceramics specimens have a perovskite phase. The multi-component ceramic system consists of the (0.80?- x)Pb(Cr1/5,Ni1/5,Sb3/5)O3-xPbTiO3-0.20PbZrO3 (PZT-CNS), with 0.30 ≤ x ≤ 0.42, and the ternary system near the rhombohedral/tetragonal morphotropic phase boundary(MPB) was investigated by X-ray diffraction and dielectric properties. In the present system, the MPB that coexists with the tetragonal and rhombohedral phases is a narrow composition region of x = 0.38 - 0.42. The scanning Electron Microscopy (SEM) showed an increase of the mean grain size when the sintering temperature was increased. A sintered density of 92.93% of the theoretical density was obtained for Ti = 42% after sintering at 1180°C. Ceramics sintered at 1180°C with Ti = 42% achieve excellent dielectric properties, which are as follows εr = 4262.48, and Tc = 340°C.

关键词： PZT Calcination Dielectric Properties MPB Ceramic X-Ray Methods

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