Publications (8047)
ARTICLE
Permeability to water of sintered clay ceramics
D. BATHIEBO
The microstructural characteristics of sintered clay ceramics depend mainly on the clay type and thermal transformations. Different pore morphology and connectivity change the liquid water flow process through the material, as in the case of roof tiles which are progressively saturated with water during rain. In this study, 2 clays mined in Bu(...)
Mots clés non renseignés
ARTICLE
Indications et apports de l’endoscopie au tube rigide dans l’exploration des voies aérodigestives en ORL
OUOBA K, GYEBRE YMC, OUEDRAOGO BP, SERME M, ELOLA A, OUEDRAOGO I, OUATTARA M, DIALLO, SANOU J.
Résumé
Introduction : L’endoscopie au tube rigide des voies aéro-digestives hautes est une exploration encore courante
dans les pays en développement. Le but de cette étude était de préciser ses indications et ses résultats dans le
service d’ORL du CHU de Ouagadougou (Burkina-Faso).
Méthodologie : Il s’agissait d’une étude rétrospectiv(...)
Mots clés non renseignés
ARTICLE
Rates of coverage and determinants of complete vaccination of children in rural areas of Burkina Faso
Sia, Drissa, Pierre Fournier, Jean-François Kobiané et Blaise Sondo
Burkina Faso's immunization program has benefited regularly from national and international support. However, national immunization coverage has been irregular, decreasing from 34.7% in 1993 to 29.3% in 1998, and then increasing to 43.9% in 2003. Undoubtedly, a variety of factors contributed to this pattern. This study aims to identify both in(...)
Mots clés non renseignés
ARTICLE
Effets d’un stress hydrique intervenu pendant le stade végétatif et la phase de floraison chez le gombo
Rasmata NANA , Zoumbiessé TAMINI et Mahamadou SAWADOGO
Cette étude a pour but d’évaluer l’impact du stress hydrique durant le stade végétatif et à la floraison sur la teneur en proline et en chlorophylle de cinq variétés de gombo. Les variations entre les différentes variétés étudiées ont été détectées. Pour cela, des plantes de cinq variétés de gombo sont cultivées sous trois traitements hydrique(...)
variétés, traitements hydriques, proline, chlorophylle
ARTICLE
FFT/IFFT Pair Based Digital Filtering for the Transformation of Adding Signal PAPR Reduction Techniques in Tone Reservation Techniques
Guel Désiré and Palicot Jacques
Orthogonal Frequency Division Multiplexing (OFDM) suffers from a high Peak-to-Average Power Ratio (PAPR). Tone Reservation (TR) is a popular PAPR reduction technique that uses a set of reserved subcarriers to carry the peak reducing signal. The major advantages of TR technique include no transmission performance degradation, no transmission of(...)
Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), FFT/IFFT pair Based Digital Filtering
ARTICLE
A Figure-of-Merit for Evaluating the Overall Performance of OFDM PAPR Reduction Techniques in the Presence of High Power Amplifier
Guel Désiré and Palicot Jacques
One of the major drawbacks of Orthogonal Frequency-Division Multiplexing (OFDM) is the large envelope fluctuations which either require an inefficient use of High Power Amplifiers (HPA) or decrease the system performance. Peak to-Average Power Ratio (PAPR) is a very well known measure of the envelope fluctuations and has become the cost functi(...)
Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Overall Performance (OP), High Power Amplifier (HPA)
ARTICLE
Study of floristic diversity and structural dynamics of some species providers of non woody products in the vegetable formations of the Centre East Region of Burkina Faso.
Ky K.J.M., Gnoula C., Zerbo P., Simporé J., Nikiéma J-B. et Millogo-Rasolodimby J.
Cet article de 08 pages, 03 tableaux, 06 figures et 36 références, avait pour but de contribuer à une meilleure connaissance de certaines espèces fournissant des Produits Forestiers Non Ligneux (PFNL) dans le Centre-Est du Burkina Faso. Cette étude vise à déterminer l'état des ressources en Vitellaria paradoxa, Balanites aegyptiaca, Tamarindus(...)
Produits Forestiers Non Ligneux, Régénération, Gestion durable, Burkina Faso
ARTICLE
Medicinal plants used in traditional medicine in the centre east region of Burkina Faso
J.M.K. Ky, P. Zerbo, C. Gnoula, J. Simporé, J.B. Nikiema, J. Millogo-Rasolodimby
The present research focused on the inventory and the use of plants in traditional medicine for the treatment of diseases in this area. The method was based on ethnobotanical surveys with semi-directing interview, conducted from November 2006 to December 2007 among a sample of 50 people aged between 40 and 80 years and very experienced in trad(...)
Plantes médicinales, médecine traditionnelle, ethnobotanique, Burkina Faso, maladies gastro-intestinales, paludisme, pharmacopée vétérinaire, ressources génétiques végétales
ARTICLE
[Ceramic clay from Burkina Faso used in building construction]: Céramiques d'argile du Burkina Faso utilisées en construction immobilière
D. BATHIEBO
2 raw clays samples from Burkina Faso were analyzed in order to improve the ceramic process of roof tiles and small bricks manifacture. The major phases etected by X-ray diffraction in the 2 samples are kaolinite, illite, orthose and quartz. In addition, feeble quantities of albite and montmorillonite are also detected. The thermal behavior be(...)
Mots clés non renseignés
ARTICLE
Epidemiology and prognostic factors for sickle cell retinopathy in Ouagadougou (Burkina Faso)
J.W. Diallo, O. Sanfo, I. Blot, N. Meda, P. Sawadogo, A. Ouedraogo, J. Simporé
Introduction: The frequency of sickle cell disease varies from 5% to 20% in Africa.
Patients and method: This retrospective study investigated 173 patients in an ambulatory setting from August 2000 to July 2006. The study included 98 women and 75 men, aged 15-62 years, with a mean age of 26.7 years.
Results: Only 89 patients (71 SC and 1(...)
rétinopathie drépanocytaire, facteurs pronostiques, épidémiologie, Ouagadougou, Burkina Faso
ARTICLE
Antimicrobial resistance and serotype distribution of Streptococcus pneumoniae strains causing childhood infection in Burkina Faso
Leonard C. Bere, Jacques Simpore, Simplice D. Karou, Boukaré Zeba, Augustin P. Bere, Elizabeth Bannerman, Jacques Bille, Mireille Dosso
In Burkina Faso, a Western African country, reports on pneumococci carriage, resistance patterns and serotypes are inconsistent. The present study was conducted in order to evaluate these parameters. Thus 860 nasopharyngeal swabs were collected from children attending vaccination centers for pneumococci isolation, identification and serotype d(...)
Streptococcus pneumoniae, résistance antimicrobienne, sérotypes, enfants, Burkina Faso, antibiotiques
ARTICLE
Transformation grâce à un Filtrage Numérique des techniques "Ajout de Signal" en techniques "Tone Reservation" pour la Réduction du PAPR des Signaux OFDM
Désiré GUEL, Jacques PALICOT
L'OFDM (Orthogonal Frequency Division Multiplexing) souffre d'une grande variation d'amplitude caractérisée par un PAPR (Peak-to-Average Power Ratio) élevé. La "Réservation Tone" (TR) est une technique de réduction de PAPR qui utilise un ensemble de porteuses réservées pour transmettre le "signal de réduction du PAPR". Du f(...)
PAPR, Tone Reservation, Signaux OFDM
ARTICLE
Co-infection of Toxoplasma gondii with HBV in HIV-infected and uninfected pregnant women in Burkina Faso
D. Ouermi, J. Simpore, A. M. G. Belem, D. S. Sanou, D. S. Karou, D. Ilboudo, C. Bisseye, S. M. Onadja, V. Pietra, S. Pignatelli, C. Gnoula, J. B. Nikiema, G. B. Kabre
Toxoplasma gondii infections can induce serious complications in HIV-infected pregnant women, leading to miscarriage; favour the mother-to-child transmission of HBV and HIV and birth defects. The purposes of this study were: (1) to quantify IgM and IgG antibodies to Toxoplasma gondii in HIV-seropositive and seronegative pregnant women, (2) to(...)
Toxoplasma gondii, co-infection, hépatite B, VIH, grossesse, Burkina Faso, anticorps IgM/IgG, HBsAg, femmes enceintes
ARTICLE
Reversible reduction of nevirapine plasma concentrations during rifampicin treatment in patients coinfected with HIV-1 and tuberculosis
Alberto Matteelli, Nuccia Saleri, Paola Villani, Victor Bonkoungou, Anna Cristina C Carvalho, Seni Kouanda, Marie J Sanou, Jacques Simporé, Laura Monno, Giampiero Carosi, Mario Regazzi, Mathurin Dembele
Background: Nevirapine (NVP) plasma levels are reduced in patients receiving rifampicin (RFM) for tuberculosis (TB) treatment. We determined variations over time of the pharmacokinetic parameters of NVP in patients who receive RFM.
Methods: HIV-1-infected patients with CD4+ T-lymphocyte count <or=100 cells per microliter and TB diagnosis re(...)
nevirapine, rifampicin, pharmacokinetics, HIV-1, tuberculosis, plasma concentrations, AUC, combined therapy
ARTICLE
In vitro Antibacterial Properties of Total Alkaloids Extract from Mitragyna Inermis (Willd.) O. Kuntze, a West African Traditional Medicinal Plant
Cheikna Zongo, Etienne-Francois O. Akomo, A. Savadogo, Louis Clement Obame, Jean Koudou and Alfred S. Traore
The antimicrobial activity of the total alkaloids from the leaves of Mitragyna inermis (Willd.) O. Kuntze (Rubiaceae) From Burkina Faso was evaluated using disc diffusion essay and broth microdilution assay. The extract was used against ten (10) reference bacterial strains and three (3) clinical isolates including Gram(+) and Gram(-) strains.(...)
Mots clés non renseignés