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Search Results: 1 - 10 of 482 matches for " Diallo Kalilou "
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Quality of Life of Patients on Peritoneal Dialysis in Dakar: A Senegalese Single Centre Experience  [PDF]
Kane Yaya, Cisse Mouhamadou Moustapha, Seck Sidy Mohamed, Lemrabott Ahmed Tall, Faye Maria, Hounsounou Christian, Diallo Kalilou, Ka El Hadji Fary, Niang Abdou, Diouf Boucar
Open Journal of Nephrology (OJNeph) , 2016, DOI: 10.4236/ojneph.2016.62005
Abstract: Introduction: Measuring the quality of life (QOL) in recent years has become an indispensable tool in monitoring patients suffering from chronic diseases. We conducted this study to assess QOL of patients undergoing peritoneal dialysis in Dakar, and to identify associated factors. Patients and Methods: This is a cross-sectional study which was carried out from 10 to 30 June, 2011 in the peritoneal dialysis unit at university hospital in Dakar. We included all patients with end-stage renal disease (ESRD) of any age, who were on PD since at least six months and who gave their consent. The QOL was assessed using the Kidney Disease Quality of Life Short-Form 1.2 (KDQoL-SF). Results: Sixteen patients were included with a mean age of 50.25 ± 13.48 years and a sex-ratio of 1.27. Considering SF-36, the overall mean score (SMG) was 60.11 ± 15.96 with a Mean Physical Component Summary Scale of 53.66 ± 16.98 and a Mental Component Summary Scale of 70.85 ± 6.14. Concerning the KDQoL-SF, the global mean score was 61.83 ± 19.35 with a mean physical score of 50.55 ± 16.52 and a mean mental score of 62.52 ± 21.53. The mean dialysis specific dimension score was 62.52 ± 21.53 and the mean mental health score was 85.93 ± 12.06. Age, weight, level of instruction and social support were correlated with a worse QOL. Conclusion: This study showed an alteration of our PD patients’ QOL, particularly in their physical health. However, the number of patients included in the study is not enough to permit a formal conclusion.
Secondary Hypertension in Sub-Saharan African Populations: A Retrospective Study between 2011 and 2016 at Regional Hospital of Saint-Louis, Senegal  [PDF]
Yaya Kane, Joel Simon Manga, Diatou Gueye Dia, Maiga Moussa Zeinabou Tondi, Ahmed Tall Lemrabott, Maria Faye, Sidy Mouhamed Seck, Mouhamadou Moustapha Cisse, Alex Ismael Keita, Kalilou Diallo, El Hadj Fary Ka, Abdou Niang, Boucar Diouf
Open Journal of Nephrology (OJNeph) , 2016, DOI: 10.4236/ojneph.2016.63012
Abstract: Introduction: High blood pressure (HBP) is a worldwide health issue responsible of high cardiovascular morbidity and mortality. Even though essential HBP is far the most frequently reported in patients, secondary causes must be known because of their severity and the possibility of aetiological treatment. No recent epidemiological data are available about secondary causes of HBP in black African populations. The aim of this study was to describe aetiological patterns of secondary HBP in patients followed at Saint-Louis Hospital. Patients and Method: We conducted a retrospective and descriptive study in regional hospital of Saint-Louis. All patients aged ≥15 years old admitted from January 1st 2011 to January 31st 2015 in internal medicine, nephrology, emergency and cardiology departments were included. Clinical, paraclinical data and patients outcomes were collected from medical records. Hypertension was defined according to JNC8 criteria. Secondary HBP was considered if explorations identified a clear aetiology to hypertension. Statistical analysis was done with Excel 2010 and STATA 12.0. Results: We included 9253 patients with mean age of 35 ± 12 years (15 - 83 years) and sex-ratio of 1.6. Overall 67.5% of patients had hypertension and secondary causes were found in 10.5% of them. The majority of patients presented clinical symptoms suggesting a secondary cause of HBP and first-line laboratory explorations were normal in half of cases. Renal diseases were responsible for 79.1% of secondary HBP cases mainly dominated by glomerulonephritis (22.6%), vascular nephropathies (18.7%) and autosomal dominant polycystic kidney disease (5.8%). They were followed by preeclampsia (13.6%) and endocrinal aetiologies such as hyperthyroidism (5.8%), hypercorticism (0.5%), pheochromcytoma (0.5%), primary hyperparathyroidism (0.4%) and Conn’s adenoma (0.1%). Combination of ≥3 antihypertensive drugs was necessary in 71.5% of cases and surgical treatment was performed in three patients. Blood pressure was normalized in only 27.7% of patients. Conclusion: Secondary causes are frequent in our young patients with HBP. In the majority of patients complete clinical examination and minimal laboratory investigations recommended by World Health Organisation can give an aetiological orientation that needs further radiological and hormonal explorations.
Modernization of Public Transports in Senegal: Case of Ticket Payment Method in Dakar Dem Dikk (3Ds) Buses  [PDF]
Sall Ousmane, Diallo Ousmane
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.67013
Abstract: Transport is one of the important keys of growth and socio-economic development for any country. Since 2005, Senegalese authorities have embarked on a vast fleet renewal program to modernize urban transport and professionalize the actors. The purpose of this paper is to sensitize people about the modernization of ticket payment method in Dakar Dem Dikk buses. To achieve this objective, a survey was done through the users and results have shown that the majority of participants agree to adopt the electronic ticketing smart card in public transport. This contactless payment technology is also recommended in commerce sector to facilitate and secure transactions.
Electrical Instability in Pentacene Transistors with Mylar and PMMA/Mylar Gate Dielectrics Transferred by Lamination Process  [PDF]
Abdou Karim Diallo, Abdoul Kadri Diallo, Diouma Kobor, Marcel Pasquinelli
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.47125
Abstract: This study deals with electrical instability under bias stress in pentacene-based transistors with gate dielectrics deposited by a lamination process. Mylar film is laminated onto a polyethylene terephthalate (PET) substrate, on which aluminum (Al) gate is deposited, followed by evaporation of organic semiconductor and gold (Au) source/drain contacts in bottom gate top contact configuration (Device 1). In order to compare the influence of the semiconductor/dielectric interface, a second organic transistor (Device 2) which is different from the Device 1 by the deposition of an intermediate layer of polymethyl methacrylate (PMMA) onto the laminated Mylar dielectric and before evaporating pentacene layer is fabricated. The critical device parameters such as threshold voltage (VT), subthreshold slope (S), mobility (μ), onset voltage (Von) and Ion/Ioff ratio have been studied. The results showed that the recorded hysteresis depend on the pentacene morphology. Moreover, after bias stress application, the electrical parameters are highly modified for both devices according to the regimes in which the transistors are operating. In ON state regime, Device 1 showed a pronounced threshold voltage shift associated to charge trapping, while keeping the μ, Ioff current and S minimally affected. Regardless of whether Device 2 exhibited better electrical performances and stability in ON state, we observed a bias stress-induced increase of depletion current and subthreshold slope in subthreshold region, a sign of defect creation. Both devices showed onset voltage shift in opposite direction.
Varicocele and DNA Fragmentation in Senegalese Infertile Males—A Study of 95 Cases  [PDF]
Mama Sy Diallo, Oumar Faye, Yoro Diallo, Rokhaya Ndiaye Diallo, Jean Pascal Demba Diop, Abdoulaye Séga Diallo, Babacar Diao
Advances in Reproductive Sciences (ARSci) , 2017, DOI: 10.4236/arsci.2017.53006
Abstract: Varicocele is the first etiology of infertility in men worldwide and affects almost half of the men dealing with infertility in Senegal. Varicocele is associated with a high rate of sperm DNA fragmentation so this test is being more and more recommended especially when patients have to benefit from an ART (Assisted Reproductive Technology) procedure. The aim of our study was to assess if our patients with varicocele are concerned by higher DNA fragmentation rate in spermatozoon. Sperm samples were collected (95 cases of varicocele and 30 controls) and analyzed between January 2013 and June 2016 in a prospective study. Sperm DNA damage, characterized by the rate of DNA fragmentation was evaluated by TUNEL assay using fluorescence microscopy. There was a significant higher percentage of DNA fragmentation in patients with varicocele (p < 0.001), compared to controls. We plan to study a bigger cohort to assess this tendency and study the benefits of surgery in varicocele by evaluating DNA fragmentation after the procedure.
Semen Abnormality Patterns and Parameters in Male Partners of Infertile Couples in Dakar (Senegal)  [PDF]
Mama Sy Diallo, Abdoulaye Séga Diallo, Pyrrhus Fotso, Yoro Diallo, Babacar Diao, Oumar Faye
Open Journal of Urology (OJU) , 2015, DOI: 10.4236/oju.2015.59024
Abstract: Introduction: Inter individual variation for semen on analysis is well known. Therefore, Semen profile is not the same in individuals from different geographic locations, environments, ways of life, and populations. It is important for a laboratory to have an idea of the semen profile of its population, especially for those who present with infertility. The aim of this study was to draw the pattern of semen abnormalities in male partner of infertile couple in Dakar, Senegal. Materials and Methods: A retrospective study of all the semen samples of male partners of infertile couples submitted for analysis in the laboratory of Cytogenetic and Reproductive Biology of Dakar at the University Teaching hospital from January 2013 to June 2014. Results: A total of 262 male semen analyses were reported. Analysis was performed according to WHO, 2010 manual for examination of human semen. Our study reveals that 80.9% of men in infertile couples present an abnormality in sperm pattern. The main one is oligo-astheno-terato-necrozoospermia (20.2%), followed by azoospermia, (14.1%), astheno-necrospermia (10.3%) and astheno-terato-necro-zoospermia (10.3%). Leucocytospermia was found in 57.8%. Teratozoospermia (80.9%) was the most associated abnormality, followed by necrozoospermia (76.2%). Low sperm count under 5 million per ml concerned 27.7% of the patients, and 11.2% patients had low ejaculate volume. Nearly 42.1% of the male partners are potential candidates for Assisted Reproductive Technology for male infertility. Conclusion: The high rate of semen abnormality in patients of infertile couples and consequently the high rate of potential candidates to Assisted Reproductive Technology for male infertility are important reasons for taking into account rigorously the male subject if we want to improve fertility rate in our context. The pattern of the specific abnormalities found is precious clues to guide management of these patients.
Increased DNA Fragmentation in Patients with Infertility in Dakar (Senegal)  [PDF]
Mama Sy Diallo, Oumar Faye, Abdoulaye Séga Diallo, Yoro Diallo, Babacar Diao
Advances in Reproductive Sciences (ARSci) , 2015, DOI: 10.4236/arsci.2015.34012
Abstract: The presence of DNA fragmentation in semen is associated with poor results in ART (Assisted Re-productive Technology). This has led to the introduction of sperm DNA integrity testing in the clinical assessment of male infertility. The TUNEL assay is one of the most commonly used tests to measure DNA fragmentation in research studies, but it is now being optimized for routine clinical use. So, the objectives of our study were to install the TUNEL assay in our laboratory and to use it to assess the degree of DNA fragmentation in our patients dealing with couple infertility. Forty seven (47) and 25 samples from patients followed up for infertility and known fertile men were analyzed between August 2013 and July 2015 respectively. The sperm samples were evaluated according to the World Health Organization Guidelines. Sperm DNA damage was assessed by the TUNEL assay, with a standardized protocol that we adapted for reading using fluorescence microscopy instead of flow cytometry. The Sperm DNA Fragmentation Index was significantly higher in patients with infertility compared to the controls (22.2% ± 5.6% vs. 16.7% ± 0.7%) with a p < 0.05. This Index was also high in patients with varicocele compared to the control group (22.8% ± 9.2 vs. 16.7% ± 0.7%) (p < 0.01). After establishing the ROC curve (Receiver Operating Characteristics curve), we found a 15% threshold of DNA fragmentation, separating the patients with infertility from the control group. In our study, a 15% threshold positivity of DNA fragmentation using the TUNEL assay was highly associated with infertility. The results indicate that high level DNA fragmentation is associated with infertility.
Forceps Delivery at the Maternity Ward of Donka National Teaching Hospital Conakry (Guinea): Indications and Maternal-Fœtal Prognosis  [PDF]
M. H. Diallo, I. S. Baldé, O. Baldé, B. S. Diallo, A. Diallo, I. Sylla, B. Diallo, A. D. Diallo, Y. Hyjazi, N. Keita
Open Journal of Obstetrics and Gynecology (OJOG) , 2019, DOI: 10.4236/ojog.2019.94049
Abstract: Objectives: The objectives of this work were to describe the socio-demographic, clinical and prognostic characteristics of forceps deliveries at the maternity ward of the Donka National Teaching Hospital of Conakry. Parturients and Method: This was a prospective and descriptive study of all forceps deliveries performed at the Donka National Hospital maternity ward over a 6-month period from April 1, 2018 to September 30, 2018. Results: We performed 90 fetal extractions by forceps on 3518 deliveries i.e. a frequency of 2.55%. The socio-demographic profile of the parturient women was that of a young primiparous woman with an average age of 21.20 years and a full-term pregnancy with an average gestational age of 39 weeks of amenorrhoea. Fore position varieties were the most frequent with, in order of frequency, the fore left occipito-iliac (61.3%) and the fore right occipito-iliac (22.22%).
Data on the migration of health-care workers: sources, uses, and challenges
Bulletin of the World Health Organization , 2004, DOI: 10.1590/S0042-96862004000800010
Abstract: the migration of health workers within and between countries is a growing concern worldwide because of its impact on health systems in developing and developed countries alike. policy decisions need to be made at the national, regional and international levels to manage more effectively this phenomenon, but those decisions will be effective and correctly implemented and evaluated only if they are based on adequate statistical data. most statistics on the migration of health-care workers are neither complete nor fully comparable, and they are often underused, limited (because they often give only a broad description of the phenomena) and not as timely as required. there is also a conflict between the wide range of potential sources of data and the poor statistical evidence on the migration of health personnel. there are two major problems facing researchers who wish to provide evidence on this migration: the problems commonly faced when studying migration in general, such as definitional and comparability problems of "worker migrations" and those related to the specific movements of the health workforce. this paper presents information on the uses of statistics and those who use them, the strengths and limitations of the main data sources, and other challenges that need to be met to obtain good evidence on the migration of health workers. this paper also proposes methods to improve the collection, analysis, sharing, and use of statistics on the migration of health workers.
Quand le savant l’emporte sur le politique
David Diallo
Transatlantica : Revue d'études Américaines , 2009,
Abstract: In this article, I examine some of the reactions that William Julius Wilson’s The Declining Significance of Race has triggered among his colleagues and among black activists. I explain that some criticisms, clearly at odds with scientific research, are the result of ideological interpretations that completely divorce Wilson’s work from its scholarly context. Through my analysis of the controversy caused by Wilson thesis, I importantly address issues of methodology, analytical rigor, and objectivity in scholarly works and emphasize highly biased assumptions presented by myopic researchers who let racial and political ideology take precedence over objectivity.
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