oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

时间不限

2019 ( 31 )

2018 ( 450 )

2017 ( 490 )

2016 ( 806 )

自定义范围…

匹配条件: “ P. N. Kouna” ,找到相关结果约364353条。
列表显示的所有文章,均可免费获取
第1页/共364353条
每页显示
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.
Exil et imaginaire des origines : l’écriture de la quête identitaire dans l’ uvre romanesque d’Henri Troyat
Désiré Atangana Kouna
Voix Plurielles , 2013,
Abstract: Henri Troyat ne vit pas son éloignement du pays natal de manière pathologique, car son expérience exilique n’a pas donné lieu à un déracinement et n’a pas abouti à l’errance. Aussi l’écrivain s’affranchit-il du pacte autobiographique et de l’interrogation sur le sujet-écrivain qui semblent caractériser l’écriture autobiographique contemporaine. Dans ces conditions, la présente recherche se propose d’analyser, dans la production romanesque de cet auteur, l’itinéraire qui, partant de la notion d’exil, aboutit à celle d’appartenance. De la sorte, nous voulons penser les notions d’exil et d’appartenance à l’intérieur d’une problématique identitaire qui s’exprime dans et par l’écriture. Plus spécifiquement, il s’agit d’examiner la manière dont Troyat écrit son exil, le lien qu’il entretient avec cet espace et sa posture identitaire.
Slow Spinal Cord Compression Inducing by Malignant Peripheral Nerve Sheath Tumors in Cotonou  [PDF]
D. Gnonlonfoun, C. Adjien, J. Nyangui Mapaga, L. Hode, G. Goudjinou, A. Sowanou, R. Domingo, P. Gnigone, G. Mambila, D. Affanou, P. H. Kouna Ndouongo, D. Houinato
Neuroscience & Medicine (NM) , 2018, DOI: 10.4236/nm.2018.91004
Abstract: MPNST is a very uncommon malignant type of neoplasm. It is often associated with neurofibromatosis type 1 (von Recklinghausen disease). It involves large anatomical regions, and thus takes on varied clinical presentations. However, bone location of MPNST, particularly in the spinal canal has been poorly described in the literature. We hereby report the case of a 29-year old young man with MPNST in the spinal canal. He presented a slow spinal cord compression confirmed by spinal MRI. MPNST was revealed through histologic and immune histochemical features after tumor resection.
Frequency of Distal Sensory Polyneuropathy among Diabetics in Parakou in 2012  [PDF]
Adoukonou Thierry, Kouna-Ndouongo Philomène, Sourokou Boni Justine, Imorou Abdoulaye, Houinato Dismand
Neuroscience & Medicine (NM) , 2015, DOI: 10.4236/nm.2015.63016
Abstract: Background: The distal sensory polyneuropathy (DSP) was more frequent among diabetics, although its determinant was not well known among diabetics in Benin. Objective: We aimed to assess the frequency of DSP and its determinants among diabetics at Parakou. Methods: It was a cross-sectional study carried out from 1 March to 31 August 2012 and included 336 diabetics followed at the diabetes unit of Parakou hospital. The diagnosis of DSP was based on DNS (Diabetic Neuropathy Score) criteria and other criteria. All data concerning the diabetes mellitus were recorded. We used Epi-Info and SPSS 16.0 software to perform analysis. Results: They were 187 females (56.0%) with the mean age of 54.9 ± 10.9 years. 298 patients fulfilled criteria for DSP; the overall prevalence of DSP was 88.7%. The main associated factors in multivariate analysis were treatment duration of diabetes more than 4 years: OR = 36.7 [4.0 - 336.9]; the elevated glycaemia: OR = 3.1 [1.4 - 7.1]; the activity with high income: OR = 0.2 [0.0 - 0.8]; the ethnicity: nagots/fon: OR: 3.7 [1.4 - 12.5]. Conclusion: Those results suggested the high frequency of DSP among diabetics at Parakou.
Prevalence of migraine among university students at Parakou, Benin: A cross-sectional study  [PDF]
Thierry Adoukonou, Francis Tognon-Tchegnonsi, Kouna Philomène, Abdias Alabi, Dismand Houinato, Pierre-Marie Preux
World Journal of Neuroscience (WJNS) , 2014, DOI: 10.4236/wjns.2014.41003
Abstract:

Objective: To determine the prevalence of migraine and its associated factors in students at the University of Parakou. Methods: It was a cross-sectional study carried out from February 1st to April 30th 2011. It included all students registered during the academic year 2010-2011 and selected by systematic random sampling. Migraine was defined according to IHS 2004 criteria. To assess the link between migraine and body mass index we collected height and weight of each student. Multivariate analysis was used to study the factors associated with migraine, odds-ratio and their confidence interval were estimated. SPSS Soft-ware was used to perform statistical analysis. Results: During the study period 1200, students returned their questionnaires. They were 842 males and 358 females. 171 fulfilled migraine criteria, and the overall prevalence of migraine was 14.2% (CI 95%: 11.6% - 17.4%). The main associated factors were the sex with an OR: 2.3 (CI 95%: 1.6 - 3.2) and family history of headache with an OR: 1.6 (CI 95%: 1.1 - 2.4). Migraine with aura was the frequent form (59.1%) and visual aura the frequent form of aura. No association was found between migraine and body mass index but students with obesity had high risk of migraine with aura OR: 3.8 (CI 95%: 1.5 - 9.7) compared with those with normal weight. The main triggering factors were sleeplessness (90.1%) and mental fatigue (85.4%). Conclusion: The results suggest a high prevalence of migraine among students at Parakou University and no association between obesity and migraine.

Distal Sensory Polyneuropathy among HIV Patients in Libreville in Gabon  [PDF]
Kouna-Ndouongo Philomène, Adoukonou Thierry, Oura Landry, Ibole James, Assengone-Zeh Yvonne, Moubeka Mounguengui Martine, Mouangue Minso Gertrude
Neuroscience & Medicine (NM) , 2015, DOI: 10.4236/nm.2015.63015
Abstract: Distal sensory polyneuropathy (DSP) was more frequent among Human Immunodeficiency Virus (HIV) patients. The reliable tool for its diagnosis is not available everywhere in sub-Saharan Africa. We aimed to estimate the frequency of DSP among HIV patients in Libreville. We’ve conducted a cross-sectional study including all consecutives HIV-patients admitted to the HIV clinic in the University Teaching Hospital of Libreville (Gabon) between 1 May and 31 July 2014. All patients underwent a full neurological examination doing by two neurologists. The diagnosis of DSP was based on Brief Peripheral Neuropathy Screen (BPNS). We also collected the data concerning past medical history, the use of neurotoxic drug, history of disease and data of High Active Antiretroviral Therapy (HAART). The logistic regression was used to study the factors associated with DSP. They were 620 patients aged from 17 to 74 years with the mean age of 42.1 years ± 11.0 years and 570 (91.9%) were on HAART. The mean duration of disease was 57.6 ± 42.5 months. Among the 620 patients 170 fulfilled criteria for DSP, and the overall frequency of DSP was 27.4%. The associated factors in univariate analysis were the age, the occupation, the use of HAART, the HAART option, the stage of the disease, opportunistic disease, alcohol consumption, exposure to isoniazid, diabetes mellitus and the modes of contamination. But in multivariate analysis the associated factors were the stage of disease OR 2.7 [1.2 - 3.7], diabetes mellitus OR 2.4 [1.4 - 5.8] and the use of D4T in HAART OR 1.9 [1.1 - 4.9]. The main symptoms among the patients were burning feet (47.6%), the tingling (40.0%), numbness (27.6%), alteration of ankle reflex (87.6%) and alteration of vibration sensation (27.6%). The DSP was more frequent among HIV patients and could be explained by the duration of the disease, the association with metabolic disease and the use of D4T.
Some New Estimators of Integrated Volatility  [PDF]
Jaya P. N. Bishwal
Open Journal of Statistics (OJS) , 2011, DOI: 10.4236/ojs.2011.12008
Abstract: We develop higher order accurate estimators of integrated volatility in a stochastic volatility models by using kernel smoothing method and using different weights to kernels. The weights have some relationship to moment problem. As the bandwidth of the kernel vanishes, an estimator of the instantaneous stochastic volatility is obtained. We also develop some new estimators based on smoothing splines.
Location Results for Brace Spacing in Gap Tubular “K” Joints Using FEM  [PDF]
P. N. Jiki
Modern Mechanical Engineering (MME) , 2013, DOI: 10.4236/mme.2013.31007
Abstract:

The 8-node iso-parametric thin shell element was employed in the study of stress concentrations in the welded tubular K joint. Element equilibrium equations were derived using isoparametric formulation based on thin shell theory. After assembly, the resulting system equations were solved using existing fortran programs. Numerical experiments were conducted to isolate and locate ideal gap (positions) for the two braces of the K joint. The nominal stresses were calculated from which stress concentration factors were obtained. The resulting stress concentration factors were presented both as tables and as figures. A good agreement between our solutions and those for model joints in the literature is good and acceptable. It was found that the wider apart the brace spacing is, the weaker the strength of the joint. It was also found that the best location for the braces occurs when the stress level changes sign either from positive to negative or vice versa at a critical sampling point.

The Role of Red Algae in Abrupt Appearance of Animals in the Early Cambrian on Siberian Platform  [PDF]
P. N. Kolosov
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.412A2008
Abstract:

Calcified rock-forming marine filamented benthic micro- and macrophytes of Dzhelindia Kolosov, 1970 (Figure 1(а)) and Chaptchaica Kolosov, 1975 (Figure 1(b)) genera, thrived in Neoproterozoic (1000-541 million years ago) Siberia together with cyanobacteria. Their belonging to Rhodophyta is well-grounded. These and other Neoproterozoic rodofits, as well as Epiphyton Bornemann 1886 (Figure 1(c)) and other Early Cambrian (541-513 million years ago) benthic algae, oxygenating floor of epicontinental sea basin, formed conditions, favorable for the animals. In combination with other biotic, and such abiotic factors as: equatorial position and tectonic feature of Siberian platform; volcanism; transgression of the sea; diversity of ecologic niches, these conditions were prerequisites of skeleton and shell acquisition by Early Cambrian animals, and as a consequence, accelerated morphologic evolution, increased diversity of taxons of different groups of animals.

Gross alpha and beta activities and trace heavy elemental concentration levels in chemical fertilizers and agricultural farm soils in Nigeria  [PDF]
N. N. Jibiri, K. P. Fasae
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.51012
Abstract:

The gross alpha (α) and beta (β) activities and trace heavy elemental concentrations have been determined in Single Super Phosphate (SSP) and Nitrogen Phosphorous Potassium (NPK) fertilizers samples used for agricultural purposes in Nigeria. Cultivated farm soil samples from two regions (north and south) in the country and samples of phosphate rocks were also analyzed for gross α and β radioactivity and elemental concentrations. The beta activity concentration in the NPK (15-15-15) fertilizers was found to vary from 2410.0 ± 80.0 Bq·kg–1 to 4560 ± 140.0 Bq·kg–1, between 1340.0 ± 70.0 Bq·kg–1 and 1440.0 ± 70.0 Bq

第1页/共364353条
每页显示


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.