ProGRES

ARTICLE

Influence of engine load and fuel droplet size on performance of a CI engine fueled with cottonseed oil and its blends with diesel fuel

Tizane Daho, Gilles Vaitilingom, Salifou K. Ouiminga, Bruno Piriou, Augustin S. Zongo, Samuel Ouoba, Jean Koulidiati

In this study, favorable conditions to achieve good combustion of cottonseed oil and its blends with diesel fuel in a direct injection diesel engine have been highlighted. This has been performed by analyzing fuel droplet size distribution and determining engine specific fuel consumption and thermal efficiency, combustion parameters (ignition(...)

Diesel engine, Droplet size, Emission

ARTICLE

First report of the fruits flies, Ceratitis quinaria and Ceratitis silvestri, on yellow plum Ximenia americana in Burkina Faso, West Africa

A. BADOLO

Fruits of Ximenia americana provide oil that is used for food and cosmetics. However, oil production potentials are limited by damages caused by the fruit flies. This research focused on the identification of the harmful insects of the ripe fruits of X. americana, the measure of morphometric and demographic parameters. Damages were also determ(...)

Mots clés non renseignés

ARTICLE

Endemic Malagasy Dalbergia species inhibit quorum sensing in Pseudomonas aeruginosa PAO1

M. KIENDREBEOGO

Various species of the plant genus Dalbergia are traditionally used as medicine for sundry ailments and some of them have been shown recently to quench the virulence of Gram-positive and Gram-negative bacteria. Cell-to-cell communication mechanisms, quorum sensing (QS) in particular, are key regulators of virulence in many pathogenic bacteria.(...)

Mots clés non renseignés

ARTICLE

BER reduction for mQAM high-speed transmission in optical fiber networks using convolutional, BCH, RS and LDPC error correcting codes

S. R. Sanou, F. Zougmore, Z. Koalaga, M. Kebré

A comparative study of digital m-ary Quadrature Amplitude Modulation (mQAM) channel coding signals for optical high-speed transmission is presented in this article. The needs to transmit information at high speed are topical and relevant to the images, the sounds, and data of any kind, etc. The photonic networks are the subject of much researc(...)

mQAM, broadband, BER, optical fiber

ARTICLE

Antibacterial and phytochemical studies of three Acanthaceae species used in Burkina Faso traditional medicine

Ouattara Nabèrè, Hilou Adama, Guenné Samson, Konaté Kiessoum, Zerbo Patrice, Meda Nâg-Tiero Roland, Compaoré Moussa, Kiendrébeogo Martin, Millogo F. Jeanne and Nacoulma O. Germaine

New and innovative antibacterial drugs research from plants is a best strategy to overcome the world problem about bacterial diseases. The aim of this study was to evaluate the in-vitro antibacterial activity and the phytochemical profile of various extracts from Hygrophila auriculata (Schumach.) Heine, Nelsonia canescens (Lam) Spreng and Peri(...)

Hygrophila auriculata, Nelson canescens, Peristrophe Bicalculata, phytochemical, antibacterial

ARTICLE

Endémie bilharzienne à Schistosoma mansoni à la vallée du Kou: caractérisation du système de transmission et impact socioéconomique

Noëllie W Kpoda, Herman Sorgho, Jean-Noël Poda, Jean Bosco Ouédraogo, Gustave B Kabré

Les schistosomiases sont sans doute l’une des maladies hydriques à qui profitent le plus les modifications environnementales et comportementales induites par la mobilisation des ressources en eau superficielle dans les pays sahéliens, comme le Burkina Faso. Des études ont établi l’existence des schistosomiases humaines à la vallée du Kou, l’un(...)

Irrigation, Schistosomiases

ARTICLE

A Study on the relation between antipatterns and the cost of class unit testing

Aminata Sabané, Massimiliano Di Penta, Giuliano Antoniol, Yann-Gael Gu_eh_eneuc.

Antipatterns are known as recurring, poor design choices, recent and past studies indicated that they negatively affect software systems in terms of understand ability and maintainability, also increasing change-and defect-proneness. For this reason, refactoring actions are often suggested. In this paper, we investigate a different side-effect(...)

Mots clés non renseignés

ARTICLE

Bioactive molecules from bacteria strains: case of bacteriocins producing bacteria isolated from foods

Essodolom TAALE, Aly SAVADOGO, Cheickna ZONGO, Andre J ILBOUDO and Alfred STRAORE

21 bacteria strains were isolated from traditional fermented food (Soumbala, Bikalga, indigenous yoghurt and fermented milk) using microbiology standard methods. Morphological and biochemistry analyses were done. Nine strains were selected as presumed belonging to lactic acid bacteria (LAB).These strains were characterized at species level by(...)

Bacteriocins, PCR, Specific primers, Kinetics

ARTICLE

Intra-specific diversity of Serratia marcescens in Anopheles mosquito midgut defines Plasmodium transmission capacity

A. BADOLO

A critical stage in malaria transmission occurs in the Anopheles mosquito midgut, when the malaria parasite, Plasmodium, ingested with blood, first makes contact with the gut epithelial surface. To understand the response mechanisms within the midgut environment, including those influenced by resident microbiota against Plasmodium, we focus on(...)

Mots clés non renseignés

ARTICLE

Existence and Controllability Results for Some Impulsive Partial Functional Differential Inclusion

Issa Zabsonre, Gilbert Bayili, Khalil Ezzinbi,

In this work, we prove the existence of mild and extremal mild solutions for first-order semilinear non densely defined impulsive functional differential inclusions in separable Banach spaces with local and nonlocal conditions. Firstly, we show the existence of mild and extremal solutions. Secondly, we study the controllability of a semilinear(...)

Mots clés non renseignés

ARTICLE

Biotype status and resistance to neonicotinoids and carbosulfan in Bemisia tabaci (Hemiptera: Aleyrodidae) in Burkina Faso, West Africa

Bemisia tabaci Gennadius is a one of the major pests of cotton crops worldwide. In Burkina Faso, data on resistance to neonicotinoids and carbamate insecticides related to species/biotypes remain very scarce. To evaluate the resistance status of B. tabaci in Burkina Faso, four insecticides were tested using the leaf dip method on 10 field popu(...)

Mots clés non renseignés

COMMUNICATION

Flow at Low Water Contents: A Simple Approach for Inverse Estimation of van Genuchten-Mualem Soil Hydraulic Parameters.

Marcel Bawindsom Kebré, Fabien Cherblanc, François Ouédraogo, JeanClaude Bénet, François Zougmoré.

The unsaturated soil hydraulic properties (the soil water characteristic and relative permeability curves) are key hydrodynamic parameters in the fields of soil science and civil engineering. Because of the strong dependency of these properties on water content, their determination is subject to considerable experimental and numerical probl(...)

Mots clés non renseignés

ARTICLE

Polyphenolic Contents of Bougainvillea spectabilis Wild and Bougainvillea glabra Choisy (Nictagynaceae) with Potential Antioxidant and Antiproliferative Activities

Moussa COMPAORE, Sahabi BAKASSO, Aminata P NACOULMA, Roland NT MEDA, Martin KIENDREBEOGO, Jeanne F MILLOGO, Odile G NACOULMA

Objective: In this study, novel biological activities of Bougainvillea sp extracts related to their polyphenolic contents were investigated. Methods: Scavenging capacity assays against non-biological and biological radicals, and evaluation of total reduction capacity were evaluated spectrophotometrically. Colorimetric COX (ovine) inhibitor scr(...)

Antioxidant activity, Antiproliferative effect, phenolics, Bougainvillea spectabilis

ARTICLE

Proximate composition of traditional local sorghum beer “dolo” manufactured in Ouagadougou

Fatouma Mohamed Abdoul-latif, Imael H. N. Bassolé and Mamoudou H. Dicko

Dolo is a local beer manufactured from malted sorghum grains. It is the most commonly consumed alcoholic beverage in Burkina Faso (60% of population). Thirty (30) samples of dolo were collected from local markets in Ouagadougou and analyzed with respect to their proximate compositions and pH values using biochemical standard method(...)

Sorghum bicolor, local beer, dolo, alcohol content, composition

ARTICLE

Proximate composition of traditional local sorghum beer “ dolo ” manufactured in Ouagadougou

nFatouma ABDOUL-LATIF, Imael H. N. BASSOLE, and Mamoudou H. DICKO

Dolo is a local beer manufactured from malted red sorghum grains. It is the most commonly consumed alcoholic beverage in Burkina Faso. Thirty samples of dolo, were collected from local markets in Ouagadougou and analyzed with respect to their proximate compositions and pH values. The average values of pH, dry matter and insoluble matter among(...)

Sorghu m bicolor, local beer, dolo, a lcohol content, composition

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