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OALib Journal期刊

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Post-Stroke Depression at Teaching Hospital Center of Libreville  [PDF]
I. A. Camara, C. M. Coulibaly, N. Diouf Mbourou, P. M. Gnigone, G. A. G. Mambila Matsalou, A. Nsounda Mandzela, L. Oura, J. Nyangui Mapaga, U. D. Kombila, M. M. Moubecka, P. N. Kouna
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1105049
Abstract:
Introduction: Post-stroke depression occurs in a context of stroke characterized by sadness, loss of interest, feelings of guilt, loss of appetite, a feeling of tiredness, and a lack of concentration. Material and Methods: We conducted a descriptive cross-sectional study from January 1, 2013 to September 30, 2016. For the diagnosis of post-stroke depression, neuropsychological tests (DSM-IV and MADRS) were used. The collection approach was a maintenance survey followed by an examination. Results: From 153 stroke patients, 48.4% (n = 74) had post-stroke depression. Depressed mood was noted in 50.3% and 43.8% had a marked decrease in interest. 67.9% of these patients had a primary level of education. Widows had 4.2 times the risk of post-stroke depression, and married and retired patients were 3 times more likely than public servants. The occurrence of post-stroke depression was significantly related to the presence of motor deficit in our patients, p < 0.0001. Conclusion: These results suggest that the risk of developing depression after stroke increases with the motor deficit. The DSM-IV and MADRS scores remain neuropsychological examinations of choice for the diagnostic approach.
Secondary Bithalamic Ischemic Vascular Accident Has an Occlusion of the Artery of Percheron  [PDF]
Jennifer Nyangui Mapaga, Ibrahima A?ssata Camara, Grass Aurelle Mambila Matsalou, Pupchen Marilyse Gnigone, Nelly Diouf Mbourou, Annick Nsounda Mandzela, Cherif Mohamadou Aidara, Kouna Ndouongo Philomène
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105169
Abstract:
The bithalamic ischemic stroke secondary to percheron artery occlusion occupies a small place in the large ischemic stroke family, but its clinical polymorphism arouses patrician curiosity. We thus report 3 observations that explain the richness of this affection.
Prevalence and Associated Factors of Cephales in a Professional Environment—Case of Teachers of Libreville  [PDF]
Ibrahima Aissata Camara, Maёl Ndao Eteno, Annick Nsounda Mandzela, Nelly Diouf Mbourou, Grass Aurelle Mambila Matsalou, Jennifer Nyangui Mapaga, Pupchen Marilyse Gnigone, Landry Oura, Mounguengui Martine Moubecka, Philomène Kouna
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105168
Abstract:
Objective: To determine the prevalence of headaches among Libreville teachers. Introduction: Headaches, commonly referred to as “headaches”, correspond to all the unpleasant sensations felt in the head. It is generally a question of subjective manifestations that only the patient can express. The most common functional sign is pain, which in itself is difficult to measure. Methodology: This is a cross-sectional prospective study with analytical and descriptive aims, which took place over a period of 4 months from February 1st to June 1st, 2016. It took place in five public secondary schools in two of the six districts of Libreville. Was considered cephalalgic (or suffering from headache), any teacher who answered “Yes” to the question: “Are you prone to headaches?” The choice of the reference interval to be able to evaluate the working time of the recruited teachers was inspired by the European standards which globally place the average weekly working time of teachers between 30 and 40 hours. The collected data were processed and analyzed with Epi-info 7 and SPSS 22 software. A regression analysis was performed to identify the associated factors. Results: We collected 236 teachers whose average age was 43.2 ± 7.9 years, with extremes of 27 and 60 years. There were 141 men (59.7%) and 95 women (40.3%) with a sex ratio of 0.96. The prevalence of headache was 76.7%. The factors associated with headaches were the subject taught, the number of students, and the provision of private tutoring. Five main triggers were found: overwork (86.2%), lack of sleep (84.5%), sun (73.5%), noise (68%) and fatigue (64.6%). The effects of headache were discomfort in daily activities (65.7%), absenteeism (35.9%) and a reduction in sleep time. Conclusion: Our study shows that headaches particularly affect the teaching profession with female predominance due to stressful situations caused by their work environment.
Tail Behavior of Threshold Models with Innovations in the Domain of Attraction of the Double Exponential Distribution  [PDF]
Aliou Diop, Saliou Diouf
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.25067
Abstract: We consider a two-regime threshold autoregressive model where the driving noises are sequences of independent and identically distributed random variables with common distribution function which belongs to the domain of attraction of double exponential distribution. If in addition, for each and where denotes the convolution of the distribution function and we determine the tail behavior of the process and give the exact values of the coefficient.
Evaluation of the Effects of Irradiation of Peanut Grain by a Gamma-Ray Beam on Culture  [PDF]
G. Mbaye, M. Soumboundou, L. A. D. Diouf, B. Ndong, A. R. Djiboune, P. M. Sy, S. M. Dieng, M. Diouf, N. N. Diouf, A. Barry, M. Diarra
Open Journal of Biophysics (OJBIPHY) , 2017, DOI: 10.4236/ojbiphy.2017.73008
Abstract: The problems of agriculture in Senegal result in a low yield per hectare and poor seed quality contributing strongly to the decline in productivity. Mutagenesis by X- or Y-ray irradiation makes it possible to obtain genetic mutants necessary to improve production. It is in this context that we undertook this study to evaluate the effects induced on the cultivation of peanut seeds irradiated by X-rays at low doses applied in radiotherapy. X-ray irradiation of four (2, 3, 4, 5) lots of peanuts are performed with respectively 0.5, 1.5, 2 and 4 Gray using the cobalt 60 therapy device (Alcyon II). The seeding of the seeds and then the following-up of the crops during 35 days allowed us to study the parameters of germination, growth and yield. The results obtained after monitoring revealed that the irradiation did not have any significant impact on germination and would appear to temporarily inhibit the growth rate compared to the control batch. However, the decrease in weight of the harvested seeds can be explained by the absence of fertilizer during the cultivation.
Evaluation of the Effectiveness of Intervention for Malaria Control in Rural Areas in China
Gorgui Diouf,Yihua Xu,Patrick N. Kpanyen,Li Cai
Global Journal of Health Science , 2010, DOI: 10.5539/gjhs.v2n241
Abstract: Malaria can be prevented at the individual level by taking personal protections. However, effective preventive action is a result of public health programs that adequately teach preventive measures to the population. This study was carried out in 2007 to evaluate the knowledge on malaria control and prevention and to evaluate the effects of intervention for malaria control in rural community in China. An interventional study followed approximately 1971 randomly selected respondents over a period of four months. According to the level of endemicity of the areas, this particular study was carried out in a rural community. Two surveys were performed for the study in point. Demographic and socioeconomic variables were used as predictor variables in logistic regression analysis. Different patterns of malaria behavior were found in the closely situated households and at the school level. Gender, age, length of residence time in the areas, and health seeking behaviors was found to be statistically significant predictors of health behaviors (P <0.001). The likelihood between male and female to admit that malaria is a threat for human health was 96.3% and 97.1% respectively, (Odds Ratio = 0.782; 95% Confidence Interval 0.458, 1.335; P-value = 0.368). The use of mosquito nets was approximately evenly split between genders (OR = 0.813; 95% C.I.: 0.645, 1.025; P = 0.080). Public health campaigns through iterative actions should be maintained in the region to strengthen the awareness of the population for malaria prevention and control.
Genetic transformation of forest trees
Diaga Diouf
African Journal of Biotechnology , 2003,
Abstract: In this review, the recent progress on genetic transformation of forest trees were discussed. Its described also, different applications of genetic engineering for improving forest trees or understanding the mechanisms governing genes expression in woody plants.
Le cahier de doléances des Habitants de Saint-Louis Contexte et signi cation
Mamadou Diouf
Synergies Afrique Centrale et de l'Ouest , 2006,
Abstract:
Mosquito salivary gland protein preservation in the field for immunological and biochemical analysis
A Fontaine, A Pascual, I Diouf, N Bakkali, S Bourdon, T Fusai, C Rogier, L Almeras
Parasites & Vectors , 2011, DOI: 10.1186/1756-3305-4-33
Abstract: Mosquitoes are responsible for a wide range of important diseases that cause morbidity and mortality in tropical and temperate regions [1,2]. Pathogen transmission occurs during the blood-feeding of infected mosquitoes, concomitant with salivary protein release [3]. Analysis of salivary mosquito contents using transcriptomic and proteomic tools [4-6] have revealed a panel of salivary molecules with anti-hemostatic and immuno-modulatory properties which facilitate blood meals by counteracting host's defences [6,7]. It was repeatedly demonstrated that mosquito salivary proteins could also elicit a host IgG response in natural conditions [8-10]. Thus, the potential use of these antigenic proteins as epidemiological markers for evaluating individual human exposure level to specific mosquito species is a major research area. Additionally, the identification of such vector-borne immunogenic proteins can lead to a panel of promising applications such as the evaluation of anti-mosquito strategies effectiveness, the mapping of new infestation areas, the estimation of disease transmission risk or the development of vaccines protecting the host against the transmission and establishment of pathogens [11,12]. As our aim is to identify biological markers of individual exposure to arthropod bites using correspondent antigenic materials, it was necessary to develop a convenient protocol to collect and preserve biological samples in the field.The most common method used to obtain salivary proteins is salivary gland (SG) dissection [13-15]. Mosquito SGs contain a cocktail of enzymes and active proteins necessary for their blood-feeding that could alter salivary protein integrity [3,16]. To avoid protein degradation, SGs are generally collected on ice and stored at or below -20°C until needed [15,17]. However, maintaining samples in a frozen environment can be hard to achieve in field conditions.Although hundreds of mosquito species have been reared in laboratories, relatively few ha
Impact of daily consumption of Moringa (Moringa oleifera) dry leaf powder on iron status of Senegalese lactating women
N Idohou-Dossou, A Diouf, AL Gueye, AT Guiro, S Wade
African Journal of Food, Agriculture, Nutrition and Development , 2011,
Abstract: A randomized study was conducted to test the efficacy of Moringa powder on iron status and weight gain in women. In an open-labelled randomized trial, 82 moderately anaemic, lactating women, aged 26.7 6.5 years, received a weekly dose of either 100g of Moringa powder(Moringa group) or 120 mg iron sulphate with 0.5 mg folicacid (Control group). Data from 64 women (33 from Moringa group and 31 from Control group) were analyzed. Baseline parameters, socio-economic, anthropometry, haematology, plasma ferritin, and acute phase proteins were comparable in both groups. Low plasma ferritin (< 12 g/l) indicating iron deficiency was found in 13 and 14 women from the Moringa and Control groups, respectively. After 3 months oftreatment, mean haemoglobin concentrations significantly increased in both groups (p<0.001) but iron stores were unchanged in the Moringa group while they significantly increased in the Control group indicating that consumption of Moringa leaves failed to restore iron stores in anaemic subjects. A slight improvement was observed in the prevalence of anaemia in both groups but anaemia still persisted due to other reasons than iron deficiency anaemia. None of the groups gained weightduring the 3 months. However, the average weight lost was less important in the Moringa group (-0.8 2.1 kg) compared to the control group (-1.2 2.3 kg) but the difference was not significant (p=0.45).The amount of digestible protein in the powder could suggest that the consumption of Moringa was beneficial to the rural women by preventing weight loss during the rainy season. Micronutrient status improvement of vulnerable people in developing countries like Senegal shouldcombine diet-based strategies through production and consumption of animal derived food, vegetable, fruits and food fortification program. However, Moringa Oleifera is one example of local food that can be used in nutritional intervention program, but its use needs additional rigorous clinical trials to confirm its nutritional benefits.
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