None

The tomato (Solanum lycopersicum L.) is a widely consumed yet highly perishable product, necessitating the development of traditional preservation methods accessible to the general population. This study aims to evaluate the effect of local preservatives on the nutritional and microbiological quality of tomato paste. Following production, the paste was divided into four batches: those treated with salt (TPSP), lemon (TPLP) or oil (TPOP) and a control group with no preservative (TPNP). Nutritional and microbiological characteristics were determined using standardized methods.

Rocks are mainly divided in three types namely Sedimentary, Metamorphic and Igneous rocks depends upon their nature of forming. These rocks constitute many minerals and elements. Those are having much amount of applications in Agriculture, Medicines, Physico-Chemistry applications, Engineering, Mining, Cosmetics and Materials applications etc., The proper investigation by suitable spectroscopic techniques we could identify the Minerals and Elements presented in the Natural rock materials.

In the Congo, Clarias gariepinus (catfish) is traditionnally fished in the numerous aquatic ecosystems. Fish farming-which could play a significant role in the national economy, particularly by improving protein self-sufficiency, is still in its infancy. However, fish feed represents a major constraint on the development of this sector. This study aims to evaluate the effect of a local feed (XXX) on zootechnical performance and to assess the impact of seasonal variations on Clarias gariepinus (Burchell, 1822).

Artificial intelligence is entering organizations faster than most institutions can redesign the human experience around it. This conceptual article argues that the central question is no longer whether AI can increase efficiency, but whether technological innovation can improve performance without impoverishing autonomy, meaning, relationships, health, judgment, or dignity.

Resonant energy transfer in molecular systems can remain efficient under substantial environmental dephasing, making transport enhancement alone an insufficient indicator of persistent quantum coherence. A central question is whether the environmental scale governing the disappearance of coherence-sensitive behaviour coincides with the scale governing the loss of resonance-enhanced transfer. This work develops an open quantum-system framework for examining that separation in a weakly driven donor-bridge-acceptor molecular network.

Extreme climatic events represent a major constraint for rain-dependent family farming in tropical areas. This study analyses the effects of climate extremes on family farming in the Commune of Ouinhi, southern Benin, through rainfall and temperature variability, their impacts on agricultural yields and household livelihoods, and the statistical correlation between these parameters.

Nanotechnology is an important and rapidly growing area of study and development, where a unique phenomenon offers innovative applications. Nanotechnology around the world is applied in various fields like agriculture, health, environment, forestry etc. In forestry, the technology provides solution to many forest-related problems and it is utilised for improving and protecting wood quality, extinguishing forest fires, successful seed germination, and effective herbal medication delivery.

This article investigates the parameters that influence shearing cutting forces for three grades of sheet metal materials. A test setup was designed to carry out the cutting experiments. The experimental design implemented takes into account the influence of process parameters (cutting rate and sheet orientation) and geometric parameters (cutting edge radius). The influence of the material type is analyzed through the use of three sheet metal grades. On the one hand, the results show that shearing cutting forces increase proportionally with the material's ultimate tensile strength.

Ribosomal RNA (rRNA) gene transcription accounts for most of the RNA in prokaryotic and eukaryotic cells. Nucleolus organizer regions (NORs), which span millions of base pairs, include hundreds to thousands of tandemly repeated head-to-tail rRNA genes in eukaryotes. RNA Polymerase I (Pol I) transcribes these nucleolar rRNA genes, and the expression of these genes is regulated by the physiological requirement for ribosomes. Regulation occurs at several levels, one of which is an epigenetic on/off switch that controls the number of active rRNA genes.

L’élevage pastoral sahélien joue un rôle prépondérant dans l’économie des pays de l’Afrique de l’Ouest. Ces systèmes d’élevage mobile apparaissent comme la principale activité agricole de valorisation durable d’une ressource naturelle fragile et éparse dans les zones sèches sahéliennes dont la couverture végétale est particulièrement malmenée. Toutefois cet élevage est souvent aussi source de dégradation des ressources naturelles.