Life Sciences

Mineral coal bottom ash, a residue from power plants, is an under-exploited industrial waste in Niger despite its interesting properties, notably its low density. This study aims to add value to this material by developing an economical, high-performance composite combining bottom ash powder (≤80 microns) and construction plaster, intended for interior applications such as false ceilings, wall coverings and decorations. Mortars with different proportions of clinker (0-70%) were formulated to assess their mechanical strength and thermal conductivity.

Loquat seed starch (Eriobotrya japonica Lindl.) was isolated, characterized, and subjected to physical modifications using ultrasound techniques at amplitudes of 40%, 50%, 60%, and 70%. Proximate analysis of the native starch revealed the following composition: moisture content (5.48%), lipid content (0.19%), protein content (3.56%), dietary fiber content (4.51%), crude fiber content (1.37%), and carbohydrate content by difference (84.77%). Thermogravimetric analysis (TG/DTG) identified three main mass loss events for all samples.

L’objectif de la présente étude est d’analyser les facteurs de risques sanitaires et environnementaux auxquels sont exposés les maraîchers de Dogona à Bobo Dioulasso, située à l’Ouest du Burkina Faso. Pour atteindre cet objectif, une enquête a été conduite auprès de 132 maraîchers dudit site. Ceux-ci ont été choisis de manière aléatoire.

Asparagus racemosus, commonly known as Shatavari, is highly valued in Ayurveda, often referred to as the "Queen of Herbs" due to its rejuvenating properties. This study seeks to explore the morphological, phytochemical, and antibacterial characteristics of Asparagus racemosus, with a specific emphasis on how different soil types and climatic conditions in Agra affect its immune-enhancing properties.

Environmental perturbation such as pollution is one of the most disturbing aspects of environmental degradation. The Gulf of Gabes is presently facing severe environmental issues due mainly to intense fishing activity and improper industrialization (metal pollution). We have proposed in the present study, to assess the impact of environmental pollution on two fish species: Sardinella (S.) aurita and Mugil (M.) cephalus. To attend our objective, an exploration of morphological and asymmetry parameters was undertaken. The comparative analysis of the obtained data showed for S. aurita and M.

The present communication deals with environmental awareness among the students of secondary schools. The four schools were selected for the study from Rae Bareli District, one central government, another one public school, third a convent school and last was a state government school. The schools selected having different infrastructures and with differences in the curriculum which severely affected their awareness about the environmental studies.

Push-over on wall, a ubiquitous phenomenon observed in various aspects of daily life, has long been a topic of interest among Civil Engineers. Push-over analysis has emerged as a widely accepted method for assessing the seismic vulnerability of unreinforced masonry (URM) walls. Its analysis is a nonlinear static analysis technique commonly employed to evaluate the performance and seismic capacity of unreinforced masonry (URM). Despite its seemingly simple nature, the underlying mechanics of push-over on wall remain poorly understood.

The aim of this study is to evaluate the effect of maceration time on the yield, quality of biomolecules and anti-radical power of pericarp extracts of Mangosteen Garcinia fruits. Phytochemical detection was carried out from ethanolic extracts obtained at different consecutive times, 24, 48 and 72 hours of maceration with 50g of powder of dried pericarps of mamgoustan fruits, thin layer chromatography followed by fluorescence detection, in vitro tests for evaluating the anti-radical power visualized with a UV-visible spectrophotometer were observed.

Le trià la source de déchets organiques municipaux est généralement présenté comme la solution pour l’amélioration de la qualité des composts produitsà partir de déchets solides municipaux en Afrique Sub-saharienne. Cependant, l’impact réel de cette pratique sur la qualité des composts produits est encore très peu investigué. Cette étude avait pour objectif d’évaluer la qualité chimique et microbiologique des composts produits à base de déchets organiques triés à la source dans la ville de Tiassalé.

The Birni N'Konnihydro-agricultural structures are hydraulic works utilized for agricultural purposes in this region of Niger. They play a pivotal role in the country's economy. In recent years, these hydraulic infrastructures have been subjected to a multitude of degradation factors, both physical and chemical in nature. The physical factors include erosion, sedimentation, and fatigue, while the chemical factors encompass corrosion and pollution. Additionally, biological factors, particularly the impact of vegetation, have also contributed to the deterioration of these structures.