Publications (9880)
ARTICLE
Autour de la dupliquee
M. OUATTARA
Cet article concerne la dupliquee D (A) d'une algebre A. Dans [l] et [2], Boers traite du probleme de la caracterisation des algebres A dont la dupliquee D (A) est associative ou strictement 4-associative. De plus, si I/est l'ideal associateur de D (A), il examine les conditions pour avoir l'isomorphisme &4)/VA. Nous repondons ici a toutes ces(...)
Mots clés non renseignés
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Sur les algèbres de Bernstein d'ordre 2
M. OUATTARA
We show that the duplicate of an nth order Bernstein algebra is a Bernstein algebra of order n+ 1, and we characterize the set of generalized idempotents in such an algebra. We also characterize those Bernstein algebra of order 2 which are Jordan or are power associative. The results are quite different from what is true for Bernstein algebras(...)
Mots clés non renseignés
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Sur les T-algebres de Jordan
M. OUATTARA
Résumé On étudie, en caractéristique différente de 2, l'aspect algèbre de Jordan des T-alg e ̀ bres. On montre que, pour les T-alg e ̀ bres de rang 3, être une algèbre de Jordan équivaut à être à puissances associatives et leur équation rang est de deux formes. Dans certains cas, on détermine l'ensemble des idempotents. On montre enfin que tou(...)
Mots clés non renseignés
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"The Fantastic Narrative in Elechi Amadi's Works: Narrating and Narration"
KIEMA, Alfred
Thanks to a particular narrator and narrative, Elechi Amadi makes the reader hesitate between natural and supernatural explanations to events. By so doing his narratives appear fantastic.
fantastic, , narrator, , narrating, , hesitation
ARTICLE
UV-VISIBLE AND IR SPECTRA OF IRON(II) PHTHALOCYANINE POLYMER COMPLEXES LINKED BY BIS-PYRIDINATO LIGANDS
KARIFA BAY0, GUY VENANCE OUEDRAOGO, GEORGES TERZIAN and DAVID BENLIAN
Abstract:The spectra of iron(II) phthalocyanine polymer complexes (FePcL)n with bispyridinato bridging ligands, where L = 44’-bipyridine (bpy), trans-1,2-(4-pyridyl)ethylene
(bpe), 1,2-bis-(4-pyridyl)ethane (bpa), are discussed in comparison with the spectra of FeIIPc
and FePcL'2, where L’ = pyridine, 4-cyanopyridine (4CNpy), in reference to(...)
Mots clés non renseignés
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From spectral clear sky emissivity to total clear sky emissivity
D. BATHIEBO
From standard and observed atmospheric profiles a simple model to compute the spectral sky emissivity has been built, and compared with Lowtran-6 code calculations. In the present paper, it is analytically integrated. The relations expressing the total emissivity point out a small effect of hygrometry. They are discussed and compared with thos(...)
Mots clés non renseignés
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Expressions for computing the radiative cooling flux from the sky in different climates
D. BATHIEBO
Sky radiation affects numerous systems but is often under estimated. This paper is especially oriented towards its determination in hot countries for cooling purposes. It includes expressions for clear weather conditions and shows some properties and the power of the flux according to the climates. Observations in Kuwait and in the Ivory Coast(...)
Mots clés non renseignés
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Algèbres de Jordan et algèbres génétiques
M. OUATTARA
Résumé L'objet de ce travail est de montrer comment les algebres de jordan interviennent en genetique. Nous montrons dans ce travail que toute algebre de jordan genetique sur un corps commutatif de caracteristique differente de 2 est une t-algebre speciale. Nous etablissons, en particulier, l'existence de deux types d'algebres de jordan parmi(...)
Mots clés non renseignés
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Effets d’intrants innovants sur les sols et la production de l’aubergine (solanum melongena l.) au Burkina Faso.
Harouna Ouédraogo, Adama Ilboudo, Daouda Guébré, Der Somé, Aminata Ganeme, Koulibi Fidèle Zongo, Aboubacar Coulibaly, Céline Sanou, Edmond Hien
La faible fertilité du sol et les séquences de sécheresse sont des contraintes pour le développement de la production végétale au Burkina Faso.
Une étude a été réalisée pour déterminer les effets du polyter et du turbo-bio sur deux types contrastés de sols et la production de l’aubergine. L’essai a été
installé selon un dispositif en blo(...)
aubergine, biomasse végétale, fertilité du sol, polyter, stress hydrique, turbo-bio
ARTICLE
Comparative prognosis of pulmonary embolism in patients infected with COVID-19 and patients not infected with COVID-19 in Ouagadougou
Y Kambiré 1, G R C Millogo 2, K J Kologo 2, A Tall-Thiam 2, V Agossou 3, L Konaté 3, H Somé 3, I Diallo 3, N V Yameogo 2, K A Samadoulougou 2, P Zabsonré 2
Objective: the study's objective was to determine impact of COVID-19 on the prognosis of pulmonary embolism.
Patients and methods: An analytical multicenter cross-sectional study with retrospective data collection was carried out in three university hospitals and a private clinic in Ouagadougou from March, 2020 to July 2021. It included con(...)
Burkina Faso; COVID-19; Embolie pulmonaire; Prognosis; Pronostic; Pulmonary embolism
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Assessment of heterocyclic aromatic amines contents in flamed and braised chicken in Burkina Faso
Bazoin Sylvain Raoul Bazie, Adjima Bougma, Aminata Sere, Judicael Thomas Ouilly, Hassane Sangare, Elie Kabre, Aly Savadogo, Djidjoho Joseph Hounhouigan, Marie-Louise Scippo, Imael Henri Nestor Bassole
The nutritional status of meat is tarnished by its association with the induced cooking contaminants. The aim of this study was to assess the heterocyclic aromatic amines profile and contents in processed chicken in Burkina Faso. Eight polar and apolar heterocyclic aromatic amines (HAAs) including 2-mino-3-methylimidazo[4,5-f]quinolone (IQ), 3(...)
Mots clés non renseignés
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Li-Sn and Pb-Zn Type Mineralization in the Birimian Greenstone Belt of Banfora. Recommendations for the Exploration of Strategic and Base Metals, Burkina Faso, West Africa
Abdoulaye Ouédraogo, Kafohé Azise Héma, Mamadou Nimi, Seta Naba, Urbain Wenmenga
Regional exploration of base and strategic metals (Li, Nb, Ta, Sn) in the Kangounadéni sector, part of the Banfora Belt (Paleoproterozoic greenstone belt, West African Craton), was conducted using stream sediment and soil sampling around the two-micas leucogranite of Ferkessédougou. In this study, a total of 281 stream sediment samples and 640(...)
Banfora, Belt, Exploration, Geochemistry, Anomaly, Mineralization
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Influence of pH on the release of nickel ions from fixed orthodontic appliances in artificial saliva
Youssouf Ouédraogo1, Abdoul Karim Sakira1, Moussa Ouédraogo1, Issa Tapsoba2, Tarcissus Konsem1 and Jean Bertin Beugré3
Abstract
AIM: The aim of this study was to make a laboratory assessment of pH influence on the kinetics of the release of nickel ions in artificial saliva.
METHODS AND MATERIAL: In this study, 15 basic orthodontic appliances are immersed in 15 polyethylene tubes each containing 40 ml of artificial saliva. Tubes were divided into three sub‑gr(...)
Artificial saliva, fixed orthodontic appliances, nickel ions, pH
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Distribution of Bemisia tabaci (Homoptera: Aleyrodidae) biotypes and their associated symbiotic bacteria on host plants in West Africa
1. The whitefly Bemisia tabaci is a pest of many agricultural and ornamental crops worldwide and particularly in Africa. B. tabaci is a complex of more than 20 biotypes. Effective control of B. tabaci calls for a greater knowledge of the local biological diversity in terms of biotypes or putative species. Information is available about biotype(...)
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Detection of mutation by allele-specific loop-mediated isothermal amplification (AS-LAMP)
A. BADOLO
For effective control of pathogen-transmitting mosquitoes, precise surveillance data of mosquito distribution are essential. Recently, an increase of insecticide resistance due to the kdr mutation in Anopheles gambiae, a mosquito that transmits the malaria parasite, has been reported. With the aim of developing a simple and effective method fo(...)
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