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Search Results: 1 - 10 of 2126 matches for " Maiga Abdoul Aziz "
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Epidemiological and Clinical Study of Cardiac Diseases in the Pediatric Department of the University Hospital Gabriel Touré (UH GT), Bamako (Mali)  [PDF]
Maiga Belco, Ba Hamidou Oumar, Sacko Karamoko, Dembélé Adama, Sanogo Nouhoum, Cissé Mohamed Elmouloud, Togo Pierre, Diakité Abdoul Aziz, Dicko-Traoré Fatoumata, Sylla Mariam
World Journal of Cardiovascular Diseases (WJCD) , 2018, DOI: 10.4236/wjcd.2018.87032
Abstract: Introduction: Children’s heart disease is a major public health problem in developing countries and especially in Mali. The purpose of our work was to determine frequency, different types of heart disease and their short term evolution in the pediatric department. Methods: We performed a retrospective study among children aged 0 to 15 years, hospitalized in the pediatric department from January to December 2015 and whose diagnosis was confirmed using trans-thoracic echocardiography. Results: We included 103 cases of heart disease out of a total of 8613 admissions in the pediatric department, giving an hospital prevalence of 1.2%. Mean age was 4.1 years (from 1 day to 15 years) and children under 5 years were the most affected with 73.80% of cases. Male predominance was noted (sex ratio = 1.2). Respiratory distress was the most common circumstance of discovery (93.20%). Cardiac murmur and tachycardia were the most common cardiac signs with respectively 88.35% and 83.50%. Congenital heart disease accounted for 70.87% and was dominated by ventricular septal defect (VSD) with 30.13%. Acquired heart disease (29.13% of the sample) was dominated by mitral regurgitation (MR) with 56.67%. Mortality rate was 31.9% for congenital heart disease and 11.1% for acquired heart disease. Conclusion: children’s heart disease is responsible for high mortality. Early detection improves the management of this pathology, which remains frequent.
A Rare Case of a Giant Cavernous Lymphangioma of the Chest Wall in a Child  [PDF]
Seydou Togo, Moussa Abdoulaye Ouattara, Ibrahim Boubacar Maiga, Yunping Lu, Donghui Jin, Ibrahim Sangaré, Maiga Abdoul Aziz, Cheik Amed Sekou Touré, Ibrahim Coulibaly, Jaques Saye, Cheik Sadibou, Sékou Koumaré, Sadio Yéna, Djibril Sangaré
Open Journal of Respiratory Diseases (OJRD) , 2016, DOI: 10.4236/ojrd.2016.61001
Abstract: Cavernous lymphangioma of the chest wall is a very rare disease entity, and only a few cases have ever been documented in the literature. Cases of recurrent cavernous lymphangioma after surgical excision of a cystic lymphangioma on the same side of the chest wall are quite uncommon. We report a case of a 10-year-old girl, with a giant cavernous lymphangioma of the left lateral chest wall extending into the axilla, who had undergone surgical excision of a cystic lymphangioma 9 years earlier.
Acute Pneumonia Characteristics in Children under Five Years of Age in Bamako, Mali  [PDF]
Fatoumata Dicko-Traoré, Abdoul Karim Doumbia, Mariam Sylla, Mariatou Traoré, Djènèba Konaté, Fatoumata Léonie Diakité, Karamoko Sacko, Belco Maiga, Hawa Diall, Oumar Coulibaly, Pierre Togo, Fousseyni Traoré, Abdoul Aziz Diakité, Yacouba Toloba
Open Journal of Pediatrics (OJPed) , 2019, DOI: 10.4236/ojped.2019.91002
Abstract: Pneumonia is the most common cause of mortality in child under five years of age. The objective of the study was to assess socio-demographic and clinical characteristics of children under 5 hospitalized for pneumonia. Material and method: We conducted a 6 months prospective study from June 1st, 2016 to December 31st, 2016 in the general pediatric service in the Pediatric Department of Gabriel Touré Teaching Hospital in Bamako, the capital city of Mali. Result: We have selected 63 cases of pneumonia according to our definition criteria, i.e. 2.2% of hospitalizations for children aged 1 to 59 months. The average age was 14 months. Infants under 2 years accounted for 82.53%. The sex ratio was 1.2. Seventy eight percent came from an unfavorable socio-economic background. The majority of mothers were uneducated (71.42%). Breastfeeding was exclusive up to 6 months in 50.79% of patients. Vaccination according to the national program was not up to date in 27% of patients. The average consultation time was 18 days. On admission, 81% of
Post-Infectious Acute Glomerulonephritis in Child: Epidemiological, Clinical and Evolutionary Aspects in Gabriel Touré Teaching Hospital in Mali  [PDF]
Mariam Sylla, Fatoumata Dicko-Traoré, Abdoul Karim Doumbia, Aminata Coulibaly, Abdoul Aziz Diakité, Modibo Sangaré, Pierre Togo, Fousseyni Traoré, Amadou Touré, Djènèba Konaté, Karamoko Sacko, Belco Maiga, Fatoumata Léonie Diakité, Lala N’Drainy Sidibé, Mohamed Elmouloud Cissé, Adama Dembélé, Hawa Diall, Oumar Coulibaly, Ibrahim Hamadou, Leyla Maiga, Issiaka Koné, Boubacar Togo, Toumani Sidibé
Open Journal of Pediatrics (OJPed) , 2018, DOI: 10.4236/ojped.2018.84036
Abstract: Introduction: Acute post-infectious glomerulonephritis (APIGN) can be serious due to its complications that still occur in our countries. In this work, we aimed to study the epidemiological, clinical, biological and evolutionary aspects of APIGN. Patients and methods: We conducted a retrospective, descriptive study from January 1st, 2015 to December 31st, 2017 in the pediatric ward of the Gabriel Touré Teaching Hospital in Bamako. All children hospitalized for APIGN were included. Results: In two years, we included 10 children aged 7 years old on average; all from low socioeconomic backgrounds. The sex ratio was 1.5. On average, the children spent 15.8 days before our consultation. Edema was the main reason for consultation. We found a history of infection and high blood pressure in 30% each, and renal failure in 10% of the children. Hematuria and proteinuria were detected in 100% and 90%, respectively. Hypocomplementemia was observed in 66.6%. One third of the children had a positive antistreptolysin O. The average duration of hospital stay was 11.2 days. The evolution was favorable in 90%. Kidney failure was the leading cause of death. Conclusion: Acute post-infectious glomerulonephritis is still a reality in our context. Emphasis should be put on its prevention by improving the hygienic conditions, detection and the management of
Secondary Spontaneous Rupture of the Diaphragm in a Child after Blunt Chest Trauma  [PDF]
Seydou Togo, Bourama Kané, Moussa Abdoulaye Ouattara, Issa Boubacar Maiga, Yunping Lu, Donghui Jin, Allaye Ombotimbé, Ibrahim Sangaré, Maiga Abdoul Aziz, Cheik Amed Sekou Touré, Ibrahim Coulibaly, Adama Issa Koné, Sitan Illiassou, Jaques Saye, Cheik Sadibou Traoré, Sékou Koumaré, Moussa Camara, Koita Adama Kononba, Mody Traoré, Zimogo Zié Sanogo, Sadio Yéna, Djibril Sangaré
Open Journal of Respiratory Diseases (OJRD) , 2016, DOI: 10.4236/ojrd.2016.62006
Abstract: Traumatic diaphragmatic rupture (TDR) is very rare in the pediatric age group. Because of its rarity and its coexistence with more injuries, the diagnosis is often delayed. Very little has been written about this condition in the pediatric age group. TDR, while uncommon, should be considered in cases of blunt thoracic trauma. All patients should undergo meticulous examination preoperatively. The clinical presentation and importance of making an accurate diagnosis and surgery is highlighted. We report a case of secondary spontaneous traumatic left-sided diaphragmatic rupture in a child that was managed by delayed surgical repair.
Overview of Ductal Carcinoma in Situ of the Breast  [PDF]
Papa Macoumba Gaye, Abdoul Aziz Kassé
Journal of Cancer Therapy (JCT) , 2014, DOI: 10.4236/jct.2014.52028
Abstract:

We review relevant publications on ductal carcinoma in situ of the breast in the past three years and we discuss pattern of outcome lightened by new molecular approach and techniques of radiotherapy.

Yan’an Mobile Game Player’s Consumption Concept of Donghua University Campus  [PDF]
Boubacar Gamatche Abdoul Aziz, Shen Lei
Journal of Service Science and Management (JSSM) , 2016, DOI: 10.4236/jssm.2016.93035
Abstract: This article proposes the design and the results of a project studying the adoption of mobile gaming (playing mobile games) in the Chinese youth market. An adoption model extending TAM (Technology Adoption Model) was used, with intention to use as the dependent variable. Data were gathered from a sample group consisting of university students both Chinese and Foreigners. It was found that adopters of mobile gaming were likely to be male as well as female, and also that the group surveyed exhibited a behavior towards relatively high spending on mobile entertainment (in proportion to income). The key factors affecting mobile gaming adoption in portion China were Perceived Ease of Use, Perceived Enjoyment, Social Influence and Flow. Perceived expressiveness, economic cost was found to be the most significant influential factor affecting intention to use, while perceived enjoyment was found to be motivated by perceived ease of use. Recommendations regarding developing and offering mobile games are also included.
Two-sources Randomness Extractors for Elliptic Curves
Abdoul Aziz Ciss
Computer Science , 2014,
Abstract: This paper studies the task of two-sources randomness extractors for elliptic curves defined over finite fields $K$, where $K$ can be a prime or a binary field. In fact, we introduce new constructions of functions over elliptic curves which take in input two random points from two differents subgroups. In other words, for a ginven elliptic curve $E$ defined over a finite field $\mathbb{F}_q$ and two random points $P \in \mathcal{P}$ and $Q\in \mathcal{Q}$, where $\mathcal{P}$ and $\mathcal{Q}$ are two subgroups of $E(\mathbb{F}_q)$, our function extracts the least significant bits of the abscissa of the point $P\oplus Q$ when $q$ is a large prime, and the $k$-first $\mathbb{F}_p$ coefficients of the asbcissa of the point $P\oplus Q$ when $q = p^n$, where $p$ is a prime greater than $5$. We show that the extracted bits are close to uniform. Our construction extends some interesting randomness extractors for elliptic curves, namely those defined in \cite{op} and \cite{ciss1,ciss2}, when $\mathcal{P} = \mathcal{Q}$. The proposed constructions can be used in any cryptographic schemes which require extraction of random bits from two sources over elliptic curves, namely in key exchange protole, design of strong pseudo-random number generators, etc.
Bayesian Estimation of Shrubs Diversity in Rangelands under Two Management Systems in Northern Syria  [PDF]
Abdoul Aziz Niane, Murari Singh, Paul C. Struik
Open Journal of Ecology (OJE) , 2014, DOI: 10.4236/oje.2014.44017
Abstract:

The diversity of shrubs in rangelands of northern Syria is affected by the grazing management systems restricted by the increase in human and livestock populations. To describe and estimate diversity and compare the rangeland grazing management treatments, two popular indices for diversity, the Shannon index and the Simpson index, were studied for the four combinations of two sites, Hammam and Obeisan, and two grazing methods, Closed and Open, using frequentist and Bayesian approaches. We simulated the a priori and a-posteriori distributions of the Shannon and Simpson diversity indices, where from a range of values for a constant in the a priori distribution the best value normalizing the distribution of the diversity indices was chosen. The Bayesian diversity estimates were higher than their frequentist counterparts and had lower standard errors. The grazing methods at each site and sites under each grazing method delivered significant diversity of shrub species. The Bayesian estimates resulted in lower p-values than the frequentist approach for two cases reflecting in Bayesian methods higher power. Bayesian approach is recommended as it has a wider framework for inference on diversity studies.

Global Harmonic Rate Assessment in the Electricity Distribution Network in Niamey City: Case Studies of Domestic, Industrial and Hospital Substations  [PDF]
Abdourahimoun Daouda, Sa?dou Madougou, Abdoul Aziz Ibrahim
Energy and Power Engineering (EPE) , 2017, DOI: 10.4236/epe.2017.912049
Abstract: Like others countries of the world, in Niger also, we are witnessing an increasing use of non-linear electric loads in the domestic, hospital and industrial sectors. However, these loads degrade the shape of the electrical signal and cause disastrous effects to the equipment of the distribution system and the devices which are connected to the network. This article highlights the presence of electric harmonics in the distribution network in Niamey city. In order to do this, measurements were taken at the secondary level of the substations using an energy quality analyze r (FLUKE 1735). By using this measuring instrument, we quantified the voltage and current Total Harmonic Distortion (THD) in the three substations. The results obtained show that, although the statutable rates set by the standards are not exceeded for phase conductors, the neutral contains a very critical percentage of distortion on the residential and hospital substations. Moreover, this assessment made it possible to observe the variation of harmonics in the presence of voltage drops.
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