Physical Sciences and Engineering

In this study, we analyze a three-species Lotka-Volterra model that incorporates two critical extensions: cautious behavioral effects and feedback control mechanisms. The cautiousness parameter quantifies adaptive strategies adopted by species in response to environmental uncertainties and interspecific interactions, while feedback control variables represent human interventions or ecosystem management efforts.

Les manuscrits arabo-islamiques revêtent une grande importanceet représentent unprécieux héritage historique pour le Niger.Ils sont une partie intégrante de l'identité culturelle du pays, témoignant l’influence de l'islam dans la région et illustrant la diversité culturelle et linguistique qui caractérise le Niger. La préservation de cesanciens écrits en langue arabe et locale renforce le sentiment d'appartenance à une tradition intellectuelle et religieuse commune.

The present work aims to study the general and specific combining capacity of the varieties involved in the crossing according to the complete diallel scheme. The trial undertaken in randomized block with four (4) replications, on mineral nutrition (N24 P 12K 12 low background, N48P24K24 high background) was carried out in the experimental station of the National Institute of Agronomic Research of Brazzaville (IRA) in the Republic of Congo.

This research investigates the impact of discipline and disciplinary procedures on effective service delivery in the Nigerian public service. It examines the existing disciplinary framework, its implementation challenges, and the perceived effectiveness of disciplinary actions in improving public service performance. The study utilized the bureaucratic theory as its theoretical framework in understanding discipline and disciplinary procedures and effective service delivery in Nigeria's public service.

Our ethnobotanical survey was carried out among 29 healers and phytotherapists in the city of Goma. From this study, 26 plant species belonging to 24 genera and 19 families used against snake bites have been inventoried. The Asteraceae family (4 species and 4 recipes) is the most represented, followed by the Malvaceae and Verbenaceae families (2 species). The leaf is the most widely used organ, trituration is the most widely used preparation method, and the poultice is the most widely adopted method of administration.

This study presents the design, development, and implementation of an RFID-based Verification System for managing gate entry and exit at Eastern Visayas State University – Ormoc Campus (EVSU-OC). Addressing the limitations of manual identity verification processes, the system was developed using agile methodology, integrating stakeholder feedback across iterative cycles to enhance usability and functionality.

The article analyzes the point of view of women in Higher Education in Cabinda, about challenges and ethics in professional life. These points of view were collected through a questionnaire survey with closed questions, on a Likert scale from 1 to 5. The answers from the 25 women interviewed were processed using simple statistics, with the support of the SPSS program, and the opinions regarding open questions were not subject to analysis, taking into account that the study required in-depth data in a timely manner.

The emerging topic of quantum computing holds promise for transforming many facets of science, technology, and society. Using the ideas of quantum physics, quantum computing has the potential to completely transform the computing industry by resolving challenging issues that are nearly unsolvable for traditional computers. Examining quantum computing's possible uses and future is the goal of this research article. It illustrates the difficulties in creating workable quantum computers and investigates the fundamental ideas of quantum physics.

To understand the internal structure of a black hole, we must understand the concept of “state of compactness” of matter, that is to say a very high level of mass/energy potential in space (GeV/cm²). This level is in the black holes and at the beginning of the universe (Big Bang). In the first case, it is a collapse of matter from gravitational fields and in the second, an expansion of space due to repulsive fields.

The eyes, as highly metabolically active organs, depend on a steady supply of key nutrients to maintain optimal function and prevent degenerative conditions. This review highlights the critical role of diet in vision health, emphasizing essential nutrients such as vitamin A for night vision, omega-3 fatty acids for tear production, and lutein/zeaxanthin for macular protection.