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Search Results: 1 - 10 of 1434 matches for " Ibrahima Dia "
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Effects of Preparation’s Parameters on Stabilization of Sabodala Gold Mine Tailings: Comparison of Fresh and Weathered Materials  [PDF]
Ibrahima Dia, CheikhIbrahima Faye, Dame Keinde, Mababa Diagne, Mamadou Gueye
Journal of Geoscience and Environment Protection (GEP) , 2017, DOI: 10.4236/gep.2017.59003
Abstract: The Sabodala gold mine tailings were stabilised using geopolymerization technics in order to improve their mechanical properties in general for a reuse as building materials for local communities. The effect of several preparation parameters on the compressive and tensile strength of the stabilised tailings has been studied to define their optimums. For each formulation, all parameters are kept constant and only one is variable. The prepared samples are then tested for compressive and tensile strength to see how the variable parameter impact on these properties. The same work was carried out for the fresh tailings and for the weathered one to see whether they behave differently and if they need different treatment. The results show that for most of parameters, there is an optimal value on either side of which compressive and tensile strength decrease. Except for few parameters, the fresh and the weathered tailings have a similar behaviour with regards to trends of their mechanical properties with changing preparation conditions. In addition to the similarity of weathered and fresh tailings mechanical characteristics following their stabilization by geopolymerization, this work has proved the considerable effects of the preparation’s parameters.
Indications and Results of Thyroidectomies in Northern Senegal  [PDF]
Diatou Gueye Dia, Hady Tall, Jacques Noel Tendeng, Amadou Diop Dia, Ibrahima Louis Martin Dieng, Ibrahima Konaté
Open Journal of Internal Medicine (OJIM) , 2018, DOI: 10.4236/ojim.2018.81003
Abstract: Goiters account for a very high prevalence disease. In Senegal, surgery is a very important part of the management. Our aim is to determine indications and results of thyroidectomies at the regional hospital of St. Louis. Patient and Method: We conducted a descriptive retrospective study over a period of 6 years on 81 records. All patients who underwent thyroidectomy during the study period were included. Computer software EPI INFO and Excel were used for collection and processing of data. Results: The average age of our patients was 40 years with a sex ratio at 0.05. The determination of TSH found 88.9% in euthyroid, 1.2% in hypothyroidism and 9.9% in hyperthyroidism. Thyroid ultrasound was performed in 97.5% of patients. Surgically, gestures performed were divided between the lobo-isthmectomies (43.1%), subtotal thyroidectomy (9.8%), total thyroidectomy (46.91%). The postoperative course was uneventful in all patients. The histology was benign in 88.9% of surgical specimens and found adenocarcinoma in 11.1%. Conclusion: Our study confirms the predominance of female thyroid pathology. The thyroidectomy which is getting better codified occupies an important place in the management. It offers the advantage around the problem of therapeutic non-compliance and also stockouts in our region.
Isolated Superior Mesenteric Vein Thrombosis in Acute Pancreatitis: A Case Report  [PDF]
Alpha Oumar Toure, Ousmane Ka, Ibrahima Ka, Mamadou Seck, Ousmane Thiam, Mohamadou Lamine Gueye, Ibrahima Konate, Mamadou Cisse, Madieng Dieng, Abdarahmane Dia, Cheikh Tidiane Toure
Case Reports in Clinical Medicine (CRCM) , 2015, DOI: 10.4236/crcm.2015.47049
The most common vascular complication of acute pancreatitis is thrombosis of the splenic vein. Isolated thrombosis of the superior mesenteric vein is rare and may lead to mesenteric ischemia and bowel infarction. We report the case of a 39 years old patient received for acute pancreatitis with a Ranson score less than 3 and image scanner for a grade C of Balthazar and a superior mesenteric vein thrombosis. The outcome was favorable with improvement of symptoms under medical treatment including anti-coagulant therapy. The contrast enhancing abdominal CT showed an absence of superior mesenteric thrombosis.
Epidemiological and Clinical Aspects of Domestic Violence in Senegal  [PDF]
Mamadou Makhatr MBacké Leye, Ibrahima Seck, Adama Faye, Mayassine Diongue, Ousseynou Ka, Marème Sougou Ndeye, Anta Tal Dia
Health (Health) , 2017, DOI: 10.4236/health.2017.910103
Abstract: Introduction: Despite being under-reported, domestic violence remains a significant challenge in Senegal. The aim of this study is to provide a descriptive analysis of the epidemiological and clinical factors characterizing domestic violence in Senegal. Methodology: A descriptive and retrospectively observational study was conducted. The data was collected from the court records of female victims of physical and/or sexual violence registered from 2006 to 2015. Female victims of physical and/or sexual violence at the hands of their husbands who had a court record at one of Senegal’s high courts during this period were also included. All records that met the inclusion criteria were selected for the study, and the data was analyzed using Epi Info 3.3.2. Results: According to the court records of 148 female victims of domestic violence, the average age of the victims was 30.6 ± 10.1 years. More than 3/4 (76.4%) of the victims were housekeepers, 82.4% of whom were uneducated. The average age of the perpetrators was 40.4 ± 11.4 years, and they were self-employed in the informal sector in 47.3% of the cases. Additionally, more than 3/4 (78.4%) of the perpetrators were uneducated. Eleven women (8% of the victims), were abused while pregnant. Physical violence was predominant (95.3%), while those associated with sexual assault accounted for 4.7% of cases. Of the 7 recorded cases of sexual violence, 3 were cases of unwanted sexual touching, and all cases of physical violence were cases of assault and battery. The violence took place at the home of the perpetrators in 81.8% of cases. In 84.7% of the cases, victims received treatment and care within 24 hours or less. Among the victims, 73% showed clinical lesions. Contusions, hematomas and penetrating wounds were most frequent, representing 23.1%; 19.4% and 13.9% of cases respectively. Conclusion: Despite the low number of cases registered in the judicial system in the past ten years, much more violence is occurring without being denounced by the victims. Therefore, it seems appropriate to increase awareness within the community and break sociocultural barriers that hinder the recognition of women’s rights in the couple.
Population genetic structure of the malaria vector Anopheles funestus, in a recently re-colonized area of the Senegal River basin and human-induced environmental changes
Samb Badara,Dia Ibrahima,Konate Lassana,Ayala Diego
Parasites & Vectors , 2012, DOI: 10.1186/1756-3305-5-188
Abstract: Background Anopheles funestus is one of the major malaria vectors in tropical Africa. Because of several cycles of drought events that occurred during the 1970s, this species had disappeared from many parts of sahelian Africa, including the Senegal River basin. However, this zone has been re-colonized during the last decade by An. funestus, following the implementation of two dams on the Senegal River. Previous studies in that area revealed heterogeneity at the biological and chromosomal level among these recent populations. Methods Here, we studied the genetic structure of the newly established mosquito populations using eleven microsatellite markers in four villages of the Senegal River basin and compared it to another An. funestus population located in the sudanian domain. Results Our results presume Hardy Weinberg equilibrium in each An. funestus population, suggesting a situation of panmixia. Moreover, no signal from bottleneck or population expansion was detected across populations. The tests of genetic differentiation between sites revealed a slight but significant division into three distinct genetic entities. Genetic distance between populations from the Senegal River basin and sudanian domain was correlated to geographical distance. In contrast, sub-division into the Senegal River basin was not correlated to geographic distance, rather to local adaptation. Conclusions The high genetic diversity among populations from Senegal River basin coupled with no evidence of bottleneck and with a gene flow with southern population suggests that the re-colonization was likely carried out by a massive and repeated stepping-stone dispersion starting from the neighboring areas where An. funestus endured.
Insecticide susceptibility of Aedes aegypti populations from Senegal and Cape Verde Archipelago
Dia Ibrahima,Diagne Cheikh,Ba Yamar,Diallo Diawo
Parasites & Vectors , 2012, DOI: 10.1186/1756-3305-5-238
Abstract: Background Two concomitant dengue 3 (DEN-3) epidemics occurred in Cape Verde Archipelago and Senegal between September and October 2009. Aedes aegypti was identified as the vector of these epidemics as several DEN-3 virus strains were isolated from this species in both countries. The susceptibility to pyrethroids, organochlorine, organophosphates and carbamate was investigated in two field strains of Aedes aegypti from both countries using WHO diagnostic bioassay kits in order to monitor their the current status of insecticide susceptibility. Findings The two tested strains were highly resistant to DDT. The Cape Verde strain was found to be susceptible to all others tested insecticides except for propoxur 0.1%, which needs further investigation. The Dakar strain was susceptible to fenitrothion 1% and permethrin 0.75%, but displayed reduced susceptibility to deltamethrin, lambda-cyhalothrin and propoxur. Conclusions As base-line results, our observations stress a careful management of insecticide use for the control of Ae. aegypti. Indeed, they indicate that DDT is no longer efficient for the control of Ae. aegypti populations in Cape Verde and Dakar and further suggest a thorough follow-up of propoxur susceptibility status in both sites and that of deltamethrin and lambda-cyhalothrin in Ae. aegypti populations in Dakar. Thus, regular monitoring of susceptibility is greatly needed as well as the knowing if this observed resistance/susceptibility is focal or not and for observed resistance, the use of biochemical methods is needed with detailed comparison of resistance levels over a large geographic area. Keywords Aedes aegypti, Insecticides, Susceptibility, Cape Verde, Senegal
A Cross-Sectional Survey on Non-Communicable Diseases and Risk Factors in the Senegalese Army  [PDF]
Abdoul Aziz Ndiaye, Alioune Badara Tall, Boubacar Gueye, Ibrahima Soce Fall, Sidy Mouhamed Seck, Amady Barro Mbodj, Ndeye Fatou Ngom-Gueye, Awa Gaye, Anta Tal-Dia
Health (Health) , 2016, DOI: 10.4236/health.2016.814151
Abstract: Background: The non-communicable diseases (NCDs) have become a public health priority. The objectives of this study were to measure the prevalence and to assess the risk factors of NCDs among the Senegalese military population to initiate an intervention program. Methods: A cross-sectional survey was conducted in 2014. Two-level stratification was used to sample participants. Data were collected following the protocol recommended by the World Health Organization. Data were managed using Epi-Info 6 software and analyzed using R software. Results: A total of 1224 participants were recruited, of whom 96.9% were men. Their ages ranged from 25 to 60 years with a mean of 39.7 ± 9.2 years. Of participants, 17.2% were active smokers. Average duration of active smoking was 19.9 ± 9 years. The prevalence of current alcohol consumption was 11.5%, with an average of 4 ± 2.7 glasses a day. 97.17% of participants consumed fewer than 5 servings of fruits and vegetables a day. 18.63% had insufficient physical activity. The overall prevalence of high blood pressure was 26.9%. The proportion of those who were overweight was 27.2%; 3.3% were obese. 3.0% of participants had diabetes and 44.1% had hypercholesterolemia. After adjusting for waist circumference, the risk of high cholesterol was 2.42 in the 35 - 44 age group and 2.86 in the 45 - 60 age group in comparison with the 25 - 34 age group. 32% were classified as having stage 2 chronic kidney. Conclusions: The findings of this study indicate the importance of risk factors for NCDs in the Senegalese military population. Intervention based on prevention and health promotion is needed.
Modified atomic orbital theory applied to the calculation of high-lying 2(K,T)n±1,3P° rydberg series of he-like ions  [PDF]
Ibrahima Sakho
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.41011
Abstract: The 2(1,0)n-1P°, 2(1,0)n +3P°, 2(0,1)n+1P°, and 2(0,1)n-3P° intershell Rydberg series of the helium-like ions are investigated in the framework of the modified Atomic Orbital Theory (MAOT). High-lying energy resonances of He and excitation energy of the he- lium-like Li+ up to n = 10 are tabulated. In addition, total energy positions for low-lying states (n<4) of the heliumisoelectronic sequence with Z = 2, 3, ...,10 are also presented. All the current results agreed well with the published values. The data listed in this paper may be useful guideline for future experimental and theoretical studies in high-lying 1,3P° autoionizing states of two-electron systems.
Controllability Approach for a Fluid Structure Interaction Problem  [PDF]
Ibrahima Mbaye
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.33034
Abstract: The present paper presents a new method to solve fluid structure interaction problem. Our computational method is based on controllability approach. Given a target structural displacement we will find a control steering the displacement of the structure u to . We need to define a payoff functional (J): where u solves the structure equation for the control and is a fixed value. Our aim is to find a control which minimizes the payoff criterion. And therefore we find u the beam displacement, v the velocity of the fluid and p the pressure of the fluid.
Internal supravesical hernia as a rare cauase of intestinal obstruction: a case report
Mamadou Cissé, Ibrahima Konaté, Ousmane Ka, Madieng Dieng, Abdarahmane Dia, Cheikh T Touré
Journal of Medical Case Reports , 2009, DOI: 10.1186/1752-1947-3-9333
Abstract: A 60-year-old Senegalese man was admitted with a two-day history of small bowel obstruction. A physical examination showed abdominal distension. An abdominal X-ray revealed dilated small bowel loops. A computed tomography scan showed an image at the left iliac fossa that suggested an intussusception. A median laparotomy showed a left lateral internal supravesical hernia. The hernia was reduced and the defect was closed. The patient recovered uneventfully.Supravesical hernia is a possible cause of intestinal obstruction and diagnosis is very often made intraoperatively. Morphological examinations, such as computed tomography scanning, can lead to a preoperative diagnosis. Laparoscopy may be useful for diagnosis and therapy.Supravesical hernias develop at the supravesical fossa between the remnants of the urachus and the left or right umbilical artery. They have many anatomical variants and are often the cause of intestinal obstruction. A preoperative diagnosis is unusual despite the use of investigations such as computed tomography (CT). We report a case of a left lateral supravesical variety revealed by intestinal obstruction. We review the anatomical variants of supravesical hernias and discuss the diagnostic and therapeutic procedures involved in their management.A 60-year-old Senegalese man with no relevant medical history was admitted in June 2007 with a two-day history of small bowel obstruction characterized by abdominal pain and vomiting. On examination, the patient was found in good general condition with a pulse rate of 90/min, a blood pressure of 100/60 mmHg, and a temperature of 37.5°C. Physical and examination showed that the patient had abdominal distension without any peritoneal signs. Rectal examination was normal. An uncomplicated inguinal hernia was also found. The patient's renal function and other blood tests were all normal. An abdominal X-ray revealed dilated small bowel loops. A CT scan showed an image in the patient's left iliac fossa that sug
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