Publications (5614)
ARTICLE
Biodepollution of wastewater containing phenolic compounds from leather industry by plant peroxidases
Mamounata Diao • Nafisse´tou Oue´draogo • Lamine Baba-Moussa • Paul W. Savadogo • Amani G. N’Guessan • Imael H. N. Bassole´ • Mamoudou H. Dicko
This study deals with the use of peroxidases (POXs) from Allium sativum, Ipomoea batatas, Raphanus sativus and Sorghum bicolor to catalyze the degradation of free phenolic compounds as well as phenolic compounds contained in wastewater from leather industry. Secretory plant POXs were able to catalyze the oxidation of gallic acid, f(...)
Peroxidase Leather Wastewater Biodepollution Phenolic compound
ARTICLE
Analysis and comparison of clipping techniques for OFDM Peak-to-Average Power Ratio reduction
Guel Desire and Palicot Jacques
One of the main disadvantages of Orthogonal Frequency Division Multiplexing (OFDM) is its high Peak-to-Average Power Ratio (PAPR), which significantly reduces the efficiency of the High Power Amplifier (HPA). Due to the simplest way for PAPR reduction, clipping techniques are frequently used in practice for OFDM PAPR reduction. In this paper,(...)
Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Clipping techniques
ARTICLE
Experimental characterization of gaseous species emitted by the fast pyrolysis of biomass and polyethylene
S. K. Ouiminga, T. Rogaume, M. Sougoti, J-M. Commandré, J. Koulidiati
This study aims to experimentally characterize the carbonaceous and nitrogenous species, from the flash pyrolysis of millet stalks and polyethylene plastic bags, using the device of the tubular kiln, coupled to two gas analyzers: Analyzer Fourier Transform Infrared (FTIR) and an analyzer Infrared Non-Dispersive (IRND). Gaseous products analyze(...)
Pyrolysis, Millet stalk, Polyethylene, Carbon
ARTICLE
La problématique diaspo à l’université de Ouagadougou ou les paradoxes de l’identité nationale burkinabè
Bouraiman ZONGO
A l’intérieur du champ de la migration, la problématique diaspo à l’Université de Ouagadougou est analysée comme une question identitaire dans un contexte social de rencontre et de diversité culturelle. L’objectif du texte est de mettre en évidence les difficultés que les étudiants burkinabè ont à surmonter les préjugés réciproques qui renforc(...)
Université de Ouagadougou, diaspo, diversité culturelle, conflits
ARTICLE
Sensitive and Selective Electrochemical Analysis of Methyl‐parathion (MPT) and 4‐Nitrophenol (PNP) by a New Type p‐NiTSPc/p‐PPD Coated Carbon Fiber Micro...
Issa Tapsoba, S. Bourhis, T. Feng, M. Pontié
A novel modified carbon fiber microelectrode (CFME) was obtained by combination of tetrasulfonated nickel phtalocyanine (p‐NiTSPc) electroformed film associated to para‐phenylenediamine (p‐PPD) electropolymerized outer‐coating. The modified CFMEs where denoted C/p‐NiTSPc and C/p‐NiTSPc/p‐PPD, respectively. These electrodes are dedicated to the(...)
Mots clés non renseignés
ARTICLE
OFDM PAPR Reduction Based on Nonlinear Functions without BER Degradation and Out-of-Band Emission
Guel Désire and Palicot Jacques
Peak-to-average power ratio (PAPR) reduction techniques based on nonlinear functions (clipping, companding techniques, etc) are the most straightforward PAPR reduction methods. These techniques reduce the PAPR at the cost of generating distortions. In this paper, we prove basing on Bussgang theorem that in context of PAPR reduction techniques(...)
Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Nonlinear functions
ARTICLE
Medicinal plants used in traditional medicine in Centre East Region of Burkina Faso.
Ky K.J.M., Zerbo P., Gnoula C., Simporé J., Nikiéma J-B. et Millogo-Rasolodimby J.
Cette publication de 12 pages, 04 tableaux, 04 figures et 35 références, a porté sur l'inventaire et l'utilisation des plantes en médecine traditionnelle pour le traitement des maladies dans la Région du Centre-Est. La méthode était basée sur des enquêtes ethnobotaniques avec entretien semi-directif auprès de 50 personnes très expérimentées en(...)
Médecine traditionnelle, Indication thérapeutique, Plantes médicinales, Burkina Faso
ARTICLE
La coqueluche du nouveau-né en Afrique
K. NAGALO
Résumé La coqueluche est une maladie contagieuse due à Bordetella pertussis, qui peut être prévenue par la vaccination. Elle est grave chez les enfants de moins de 3 mois. Ceux-ci sont dans la plupart des cas contaminés par leurs parents alors qu'ils sont peu ou pas protégés contre la maladie. Les présentations atypiques sont fréquentes et la(...)
Mots clés non renseignés
ARTICLE
In Vitro Antiplasmodial and Antibacterial Activities of Canthium multiflorum Schum & Thonn (Rubiacea) Extracts
Akomo EF, Zongo C, Karou SD, Obame LC, Savadogo A, Atteke C, Traore AS
Because of the resistance of pathogens to actually available drugs, there is a continuous need for new agents to cure several diseases such as malaria and microbial infections. In the establishment of new drugs, plant are often a source of new leads, indeed aqueous, acetone and methanol extracts of Canthium multiflorum were tested for antiplas(...)
Mots clés non renseignés
ARTICLE
Clipping Formulated As an Adding Signal Technique for OFDM Peak Power Reduction
Guel Desire and Palicot Jacques
Due to the simplest way for PAPR reduction, clipping technique have been proposed and seem to be promising for use in commercial systems. In this paper, the conventional clipping technique is formulated as an adding signal technique for PAPR reduction. We show that, when clipping occurs very rarely, the adding signal for PAPR reduction commonl(...)
Peak to Average Power Ratio (PAPR), Nonlinear distortion, Wireless LAN
ARTICLE
« Littérature et idéologie : déconstruction de l’histoire et préjugés raciaux dans Two Thousand Seasons de Ayi Kwei Armah »
KIEMA, Alfred
cet article
Ideologie, déconstruction, préjugés raciaux
ARTICLE
« Littérature et idéologie : déconstruction de l’histoire et préjugés raciaux dans Two Thousand Seasons de Ayi Kwei Armah »
KIEMA, Alfred
Cet article
Littérature, idéologie, déconstruction, préjugés
ARTICLE
Local existence and regularity of solutions for some partial functional integrodifferential equations with infinite delay in Banach Spaces
Khalil Ezzinbi, Hamidou Toure, Issa Zabsonre
In this work, we study the existence and regularity of solutions for some partial functional integrodifferential equations with infinite delay in Banach spaces. We suppose that the undelayed part admits a resolvent operator in the sense of Grimmer [R. Grimmer, Resolvent operators for integral equations in a Banach space, Transactions of the Am(...)
Mots clés non renseignés
ARTICLE
Les phénomènes de nitration des eaux souterraines dans la région de Tilabéry (Niger)
Marou Gourouza , Garba Zibo , Karifa Bayo
Résumé : Des échantillons d’eaux de consommation provenant de trois cent points d’eau
souterraine repartis sur toute la région de Tillabéry (Niger) ont été analysés. Les résultats
révèlent qu’environ 2/3 de ces points d’eaux connaissent un début de pollution au nitrate ;
10% sont impropres à la consommation humaine avec des teneurs supérieu(...)
Mots clés : eau, pollution, nitrate, potassium
ARTICLE
Living at the edge: biogeographic patterns of habitat segregation conform to speciation by niche expansion in Anopheles gambiae
Carlo Costantini , Diego Ayala , Wamdaogo M Guelbeogo , Marco Pombi , Corentin Y Some , Imael HN Bassole , Kenji Ose , Jean- Marie Fotsing , N'Falé Sagnon , Didier Fontenille , Nora J Besansky and Frédéric Simard
Background: Ongoing lineage splitting within the African malaria mosquito Anopheles gambiae is
compatible with ecological speciation, the evolution of reproductive isolation by divergent natural selection acting on two populations exploiting alternative resources. Divergence between two molecular forms (M and S) identified by fixed(...)
Mots clés non renseignés