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Pernicious Anemia Associated Autoimmune Diseases in a Sub Saharian African Internal Medicine Service

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Open Journal of Internal Medicine 2014年第3期4卷 59-63页

作者： Abdoulaye Pouye Seynabou Fall Dieng Daher Abdoukarim Oumar Fatou samba Diago N’Diaye Nafissatou Diagne Sakho Atoumane Faye Souhaibou N’Dongo Medical Clinic 1 University Teaching Hospital Aristide le Dantec/Cheikh Anta Diop University of Dakar Dakar Senegal

Introduction: Pernicious anemia is an autoimmune disease. It is characterized by the presence of an autoimmune atrophic gastritis and various autoantibodies that lead to a vitamin B12 deficiency responsible for a macrocytic anemia. It is frequently associated with other specific or non-organ- specific autoimmune diseases. We report six patients with pernicious anemia associated with other autoimmune diseases. Patients and Results: There were six patients (4 females/2 males), mean age of 39.67 years. In all cases it was found macrocytic anemia. The average Hb was 6.08 g/dl and the average MGV: 110.67 fl. Bone marrow aspiration was performed in all patients. Megaloblastosis compatible with a lack of vitamin B12 or folic acid was constant. Determination of serum vitamin B12 was low in all cases while folic acid levels were within standards. Immuno- logically it was found in all patients, a positivity of anti-intrinsic factor antibody and/or anti- parietal cells antibody at rates up to 67 times over normal ranges. Pernicious anemia was associated with autoimmune thyroid dysfunction in 4 patients. It was two cases of Hashimoto thyroiditis at hypothyroidic phase (high TSHus, thyréoperoxydase anti-antibody positive (over 10 N) in both cases and Graves’ disease in the two other cases. Pernicious anemia was associated with a syndrome of primary antiphospholipid antibody in a case. Furthermore pernicious anemia was found in a patient autoimmune type 1 diabetes with strongly positive anti -GAD antibodies and rheumatoid arthritis by retaining it in the diagnosis of multiple autoimmune syndrome. Conclusion: These cases illustrate the existence of the association of pernicious anemia with other autoimmune diseases in our context. This should encourage practitioners to seek hided autoimmune diseases when they consider the diagnosis of pernicious anemia.

关键词： Pernicious Anemia Auto-Immune Diseases Auto Immune Thyroid Dysfunction Multiple Auto-Immune Syndrome

Lamella Silicon Solar Cell under Both Temperature and Magnetic Field: Width Optimum Determination

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Journal of Electromagnetic Analysis and Applications 2020年第4期12卷 43-55页

作者： Dibor Faye Sega Gueye Mor Ndiaye Mamadou Lamine Ba Ibrahima Diatta Youssou Traore Masse samba Diop Gora Diop Amadou Diao Gregoire Sissoko Laboratory of Semiconductors and Solar Energy Physics Department Faculty of Science and Technology University Cheikh Anta Diop Dakar Senegal

This work deals with determining the optimum thickness of the lamella wafer of silicon solar cell. The (p) base region makes up the bulk of the thickness of the wafer. This thickness has always been a factor limiting the performance of the solar cell, as it produces the maximum amount of electrical charges, contributing to the photocurrent. Determining the thickness of the wafer cannot be only mechanical. It takes into account the internal physical mechanisms of generation-diffusion-recombination of excess minority carriers. They are also influenced by external factors such as temperature and magnetic field. Under these conditions, magneto transport equation is required to be applied on excess minority carrier in lamella base silicon solar cell. It yields maximum diffusion coefficient which result on Lorentz law and Umklapp process. Then from photocurrent, back surface recombination velocity expressions are derived, both maximum diffusion coefficient and thickness dependent. The plot of the back surface recombination calibration curves as function of lamella width, leads to its maximum values, trough intercept points. Lamella optimum width is then obtained, both temperature and magnetic field dependent and expressed in relationships to show the required base thickness in the elaboration process.

关键词： Silicon Vertical Junction Back Surface Recombination Velocity Magnetic Field Temperature Lamella Width

Giant Myositis Ossificans Circumscribed Post Traumatic of Gluteus and Adductor Muscles: Case Report

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Open Journal of Orthopedics 2015年第6期5卷 157-162页

作者： Koné samba Touré Stanislas Bana Abdoulaye Dogba Eric Doukouré Brahima Ngandeu Nawé Astrid Koffi Gérard Vangah Marius Mègné Estelle Allou Sylvain Service de Chirurgie Orthopédique et Traumatologique C.H.U de Cocody Abidjan Ivory Coast Service d’Anatomie Pathologie du C.H.U de Cocody Abidjan Ivory Coast Service de Rhumatologie C.H.U de Cocody Abidjan Ivory Coast Service de Chirurgie Orthopédique et Traumatologique C.H.U de Bouake Bouake Ivory Coast

Myositis ossificans circumscribed is a bone and cartilage heterotopic non neoplastic proliferation inside the soft tissues. It is a benign focal heterotopic ossification process of soft tissues, and a rare disorder that occurs spontaneously or after local trauma. Clinical and radiographic appearances are quite hustler. A careful histological examination of biopsy straightens diagnosis is necessary. There is no consensus in support (surgical or/and medical). From Benign prognosis, evolution of this pathology is usually favorable. The authors report a case of giant myositis ossificans circumscribed post-traumatic localized on gluteus and adductor muscles of the right hip on a 26-year-old man. Through a review of literature the mechanism, the diagnostic methods and therapeutic will be discussed.

关键词： Giant Myositis Ossifying Gluteus and Adductor Muscles Biopsy

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大角度弹性波阻抗(英文)

工程地球物理学报 2011年第4期8卷 466-471页

作者： samba Charles Prisca 刘江平毛茂 Moussounda Kounga Claude 中国地质大学地球物理与空间信息学院湖北武汉430074 中国地质大学地球科学学院湖北武汉430074

弹性波阻抗及相关技术是以二项AVO方程和三项AVO方程为基础的,它的有效性在世界范围内的许多沉积盆地都得到了验证。在过去的几年中,大偏移距的数据采集使得入射角普遍大于30°,因此必须用三项AVO方程来解决储层流体和岩性识别问题。在... 详细信息

弹性波阻抗及相关技术是以二项AVO方程和三项AVO方程为基础的,它的有效性在世界范围内的许多沉积盆地都得到了验证。在过去的几年中,大偏移距的数据采集使得入射角普遍大于30°,因此必须用三项AVO方程来解决储层流体和岩性识别问题。在入射角小于30°时,所有的线性弹性波阻抗方程都能给出可靠的结果,当入射角大于这一角度时,某些非线性弹性波阻抗方程也能给出理想的结果。然而,由非线性弹性波阻抗获得弹性参数并非易事,因为这需要进行一些复杂的数学变换。到目前为止,只有扩展弹性波阻抗能够适用于所有的入射角度,而在sin2θ域还没有一种能够用于大角度的线性弹性波阻抗。本文提出了另外一种线性弹性波阻抗——大角度弹性波阻抗(FEI)。理论模型和实际数据都证明FEI是大角度寻找油气的有力属性。

关键词：大角度弹性波阻抗 AVO方程

利用三维地震数据对南阳油田泌阳凹陷进行断块解释(英文)

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工程地球物理学报 2007年第6期4卷 563-568页

作者： samba Charles P 刘庆生顾汉明罗银河中国地质大学地球物理与空间信息学院武汉430074

使用南阳油田泌阳凹陷王集和益阳罗地区3D地震数据进行复杂构造解释。通过综合使用地震数据和测井资料进行断层和裂隙系统的精细描述,提高油田的勘探和开发效率;同时使用相干属性体,均方根振幅属性,以及它的水平切片和垂直切片来精细刻... 详细信息

使用南阳油田泌阳凹陷王集和益阳罗地区3D地震数据进行复杂构造解释。通过综合使用地震数据和测井资料进行断层和裂隙系统的精细描述,提高油田的勘探和开发效率;同时使用相干属性体,均方根振幅属性,以及它的水平切片和垂直切片来精细刻画断层。

关键词：三维地震数据构造解释相干属性

Cardio-Renal Syndrome: Epidemiological Aspect in the Medicine Department of Tombouctou Hospital

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World Journal of Cardiovascular Diseases 2022年第2期12卷 123-132页

作者： Bassirima Traore samba Sidibé Souleymane Mariko Karamoko Kantako Massama Konaté Kalifa Diallo Nouhoum Diallo Mariam Sako Abdoul Karim Sacko Youssouf Kassambara Ichaka Menta Souleymane Coulibaly Department of Medicine Tombouctou Hospital Tombouctou Mali Cardiology Department of the Point G University Hospital Bamako Mali Cardiology Department Mali Hospital Bamako Mali Cardiology Department CHU Gabriel TOURE Bamako Mali

Introduction: Cardio-renal syndrome is a pathophysiological disorder of the heart and kidneys in which chronic or acute dysfunction of one can lead to chronic or acute dysfunction of the other. The objective of this study was to determine the prevalence of cardio-renal syndrome in the Medical Department of the Tombouctou Hospital in Mali. Methods: It is about a descriptive transversal study carried out over 18 months, from January 01st, 2020 to June 30th, 2021 and relating to the analysis of 75 files of patients hospitalized for heart failure and with impaired renal function. Results: The frequency of cardio-renal syndrome was 6.4% with a predominance of men (sex ratio: 2). Hypertension was the most widely described risk factor (50.6%). The history was dominated by chronic heart failure (14.6%) and diabetes (6.6%). The average age was 58 with extremes of 18 and 90. The main aetiologies were dilated cardiomyopathy (46.6%) and ischemic heart disease (20%). Symptoms were dominated by dyspnea (90.6%) and edema of the lower limbs and face (74.6%) accompanied by cough (74.6%). Anemia was noted in 15 patients (20%). The mean clearance (MDRD) was at 32 ml/min. Doppler echocardiography found left ventricular dilation (66.6%), lower left ventricular systolic fraction (64%) and kinetic abnormalities (20%). The kidney ultrasound performed in 9 patients returned to normal in 8 cases and in 1 patient the kidneys were small. Eight deaths (10.6%) were noted. Conclusion: Cardio-renal syndrome is a common feature in which mixed failure is observed in the unfavorable course of heart disease and nephropathy. Its prevalence is unfortunately under evaluated in cardiological settings in Africa and particularly in Mali, hence the interest of a more advanced study.

关键词： Cardio-Renal Syndrome Epidemiology Tombouctou Hospital

Distribution and Diversity of Rhizobial Populations Associated with <i>Acacia senegal</i>(L.) Willd. Provenances in Senegalese Arid and Semiarid Regions

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Open Journal of Forestry 2014年第2期4卷 136-143页

作者： Niokhor Bakhoum Christine Le Roux Diégane Diouf Aboubakry Kane Fatou Ndoye Dioumacor Fall Robin Duponnois Kandioura Noba samba Ndao Sylla Antoine Galiana Baillarguet Research Center UMR 113 IRD/CIRAD UMR82/AGRO-M/UM2 USC INRA 1242 Laboratory of Tropical and Mediterranean Symbioses (LSTM) Montpellier France Bel-Air Research Center IRD/ISRA/UCAD Common Microbiology Laboratory (LCM) Dakar Senegal Bel-Air Research Center IRD/ISRA/UCAD Common Microbiology Laboratory (LCM) Dakar Senegal National Centre of Forest Research (CNRF)/Senegalese Institute of Agricultural Research (ISRA) Dakar Senegal Plant Biology Department Cheikh Anta Diop University of Dakar (UCAD) Dakar Senegal Bel-Air Research Center IRD/ISRA/UCAD Common Microbiology Laboratory (LCM) Dakar Senegal

Abstract: Distribution and diversity of rhizobial strains associated with Acacia senegal (L.) Willd. in relation to seed provenances in soils from arid (Dahra) and semiarid (Goudiry) zones of Senegal were investigated. PCR-RFLP performed on 16S-23S rDNA intergenic spacer (IGS) of nodule crude extracts revealed a high genetic diversity of rhizobial strains, which was higher in the semiarid region than in the arid region. The distribution of rhizobial populations was influenced by soil physical and chemical characteristics, and by A. senegal provenances as shown by the analysis of correspondence. In contrast, the phenotypic diversity of rhizobial strains was not correlated with the soil origin. The phylogenetic tree (performed by the maximum likelihood algorithm) of IGS 16S-23S sequences showed that most of the rhizobial strains nodulating A. senegal were closely related to Mesorhizobium plurifarium. Our results showed that rhizobial taxa associated with A. senegal were mainly distributed according to soil physical and chemical characteristics, and A. senegal provenances. A large subset of A. senegal root-nodulating bacteria had high diversity that correlated with the most favourable environmental conditions. Understanding the diversity and distribution of rhizobial strains may be exploited in the formulation of A. senegal inoculants for different seed provenances for resilience to soil stresses in various environmental conditions.

关键词： Acacia senegal Mesorhizobium Diversity Symbiosis Ecology Phylogeny

Surface Recombination Concept as Applied to Determinate Silicon Solar Cell Base Optimum Thickness with Doping Level Effect

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World Journal of Condensed Matter Physics 2019年第4期9卷 102-111页

作者： Masse samba Diop Hamet Yoro Ba Ndeye Thiam Ibrahima Diatta Youssou Traore Mamadou Lamine Ba El Hadji Sow Oulymata Mballo Grégoire Sissoko Laboratory of Semiconductors and Solar Energy Physics Department Faculty of Science and Technology University Cheikh Anta Diop Dakar Senegal Laboratory of Sciences and Techniques of Water and Environment Polytechnic School of Thiès Thiès Senegal.

New expressions of back surface recombination of excess minority carriers in the base of silicon solar are expressed dependent on both, the thickness and the diffusion coefficient which is in relationship with the doping rate. The optimum thickness thus obtained from the base of the solar cell allows the saving of the amount of material needed in its manufacture without reducing its efficiency.

关键词： Silicon Solar Cell Surface Recombination Velocity Diffusion Coefficient Doping Rate Base Thickness

Impact of Storage Conditions on the Physicochemical Characteristics of Baobab (Adansonia digitata L.) Seed Oil

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Food and Nutrition Sciences 2022年第4期13卷 373-386页

作者： Edouard Mbarick Ndiaye Papa Guédel Faye Alioune Sow Khadim Niane Seyni Ndiaye samba Baldé Omar Ibn Khatab Cisse Nicolas Cyrille Ayessou Mady Cisse Laboratory of Water Energy Environment and Industrial Processes (LE3PI) Polytechnic Higher School Cheikh Anta Diop University of Dakar (ESP-UCAD) Dakar Center of Studies on Food Security and Functional Molecules (CESAM-RESCIF) ESP-UCAD Dakar Senegal UFR of Agronomic Sciences Aquaculture and Food Technologies (S2ATA) Gaston Berger University of Saint-Louis Saint-Louis Senegal National School of Agriculture Iba Der Thiam University of Thies Thies Senegal

The evolution of some quality markers of baobab (Adansonia digitata L.) was studied. Baobab oil extracted by pressing was packaged in 30 mL non-amber glass bottles and stored at different temperatures: 20°C, 30°C and 45°C. The physicochemical parameters (acid, peroxide, iodine, saponification, refraction and color indices) were determined during three months’ storage. A significant 5% increase in acid, peroxide and saponification value was observed over time. However, the iodine value decreased. The yellowing and refractive index remained stable while storage at 45°C caused the most significant changes in chemical parameters. The results obtained show that oils stored at 20°C had the lowest acid (2.42 ± 0.26 mg KOH/g) and peroxide (0.82 ± 0.25 mEqO2/Kg) value after three months of follow-up.

关键词： Adansonia digitata L. Oil Seeds Physicochemical Storage