Physical Sciences and Engineering

A partir de 306 questionnaires remplis par des enseignants de 22 établissements et du corpus textuel obtenu de 99 entretiens de plusieurs groupes cibles, la présente analyse en lien avec l’« étude sur les bonnes pratiques civiques et citoyennes dans les enseignements post-primaire et secondaire au Burkina Faso : contenus et stratégies de formation des acteurs »,permet de connaître les interventions qui sont mises en œuvre pour lutter contre l’incivisme au sein des établissements par le canal des pratiques civiques et citoyennes.

Le Sahel fait partie des zones de la planète les plus vulnérables face au réchauffement global. Mais des modèles climatiques avec comme données d’entrée les trajectoires des gaz à effet de serre, permettent d’anticiper le changement futur du climat. Ainsi plusieurs scénarios d’émission des gaz à effet de serre sont utilisés pour réaliser des simulations d’évolution de certains paramètres climatiques comme températureet précipitation.

The conservation of agricultural products constitutes a problem for Burkinabè farmers in particular. They use more preservation methods including solar drying. However, the majority place their products on plastic films, mats, even on the ground under solar radiation and exposed to insects, animals, wind or dust. In order to improve drying and hygiene conditions, several solar dryers have been invented but do not have a storage system that can continue drying after sunset. It is in this sense of solving this problem that we set out to design a solar dryer with energy storage.

This article focuses on the issue of arbitration misuse in jurisdictions that are susceptible to corruption and presents solutions to mitigate this problem. This underscores the vulnerability of arbitration, a highly regarded mechanism for settling commercial and international conflicts, to corruption, which undermines its integrity and impartiality. The paper examines many types of abuse, such as conflicts of interest and transparency concerns, and their effects on legal and economic institutions.

The safety of property and people against risks and electrical faults is essentially ensured by an earthing system. The essential element of the latter is the electrical resistivity of the soil. This is influenced by several factors. In this work, we used the georeference coordinates of the point (A), state of nature the day before the measurement (B), state of nature on the day of the measurement (C), and the ambient temperature at the measurement point (D). 9513 in-situ measurement samples on selected sites in Lomé constitute the database.

Multifunctional excipients are also called all-in-one excipients and are made using co-processing technology. Co-processing is a way to enhance individual excipient physical properties like bulk density, texture, particle size, flowability, and functionality like tablet hardness, weight uniformity, drug uniformity, disintegration, and dissolution profile.

Density and speed of sound were measured earlier by us for binary liquid mixtures formed by Benzonitrile, Chlorobenzene, Benzyl chloride and Benzyl alcohol with Benzene at temperature range 298.15 to 313.15 K and atmospheric pressure over the whole concentration range. Pseudo-Gruneisen parameter and internal pressure were derived from the measured values of density and ultrasonic velocity.

In modern architecture, people want to create impressive and intricate buildings. However, due to limited land and a growing population, especially in countries like India, it has become necessary to build taller structures. As buildings go higher, they face challenges from strong winds. This can be risky, especially if the building's shape is irregular, as it can lead to twisting forces and wind induced vibrations that pose a threat to the structure, human lives, and resources. Therefore, it's crucial to carefully study and understand these forces during the design process.

Obstructive sleep apnea-hypopnea syndrome (OSAHS) is an increasingly significant health concern due to its widespread occurrence, heightened risk factors, and significant mortality rates. To address this issue, researchers have focused on utilizing the blood oxygen saturation (SpO2) signal to analyze the occurrences of apnea or hypoventilation episodes during sleep, resulting in the development of the apnea-hypopnea index (AHI). In order to extract relevant information from the SpO2 signals, 35 Time Domain characteristics have been identified and studied.

Renewable energy use is still a viable option for people when it comes to protecting the environment and promoting sustainable development. This is the reason why some people in the commune of N’Zérékoré have opted for the use of solar panels as sources of energy. Although the use of these solar panels is considered an alternative solution to energy problems, it is clear that the performance of these solar panels after installation is negatively influenced by meteorological parameters such as temperature, humidity and precipitation.