International Journal of Progressive Sciences and Technologies
International Journal of Progressive Sciences and TechnologiesNot a member yet
4924 research outputs found
Sort by
Conception Et Mise En Œuvre D’une Unité Pilote De Distillation Pour La Valorisation Des Déchets Fruitiers En Bioéthanol
Get PDFThe present research focusses on bioethanol production from fruit waste in industrial way. The process is composed of juice extraction, alcoholic fermentation, continuous distillation in the aim of producing high proof ethanol. The pilot unit required the design and development of a juice extractor, 4 fermenting tanks, a continuous distillation still and a boiler fed with biomass fuel. The unit can produce up to 400 liters of ethanol at 92 to 94% by volume. The fermentation efficiency and distillation efficiency are 88,24% and 91,97% respectively. The obtained results confirm that bioethanol plant can be set up with the adopted technics, and the obtained energy can be used as an alternative for domestic fuel.Key words: Fruit waste, valorization, alcoholic fermentation, continuous distillation, bioethano
Analyse Critique De La TVA Sur L’économie Des Ménages Congolaises
Get PDFDans cet article, il est question de saisir pratiquement l'incidence de la taxe sur la valeur ajoutée sur l'amélioration de la situation économique des ménages congolais principalement et sur l'économie subsidiairement. L'on veut savoir si la taxe sur la valeur ajoutée a contribué à l'augmentation du fardeau fiscal de l'utilisateur final qui est le ménage.En dépit de ce qu'affirme la littérature économique, le présent travail se propose de saisir empiriquement l'incidence de la taxe sur la valeur ajoutée sur les ménages congolais. La TVA étant un impôt sur la consommation, les ménages congolais, qui sont les utilisateurs finals, la supportent lors de l'achat des biens et services par le mécanisme de prix. C'est ainsi que le prix est la variable principale à partir de laquelle nous allons comprendre les effets de la TVA sur le bien-être des ménages congolais, d'où l'usage de l'indice des prix à la consommation, IPC en sigle
Smart Wound Dressings Integrating Biosensors for Real-Time Monitoring of Wound Conditions
Get PDFBiosensors have paved the way for significant advancements in the management of chronic wounds. Following Clarke's introduction of the oxygen electrode, biosensors have transformed into sophisticated bandages that autonomously release medications to addressWounds based on physiological indicators, such as pH or glucose levels, that signify pathogenic threats. Aptamer based biosensors have been instrumental in detecting and characterizing harmful bacteria in wounds, which frequently develop antibiotic-resistant biofilms.Numerous functional polymers have played vital roles in the development of these biosensors. Starting with natural polymers like alginate, chitosan, and silk derived fibroin, known for their biodegradable and absorptive properties, progress has occurred in creating biocompatible synthetic polymers like polyurethane and polyethyleneglycol, aimed at minimizing nonspecific binding of proteins and cells, thus making biosensors less painful or cumbersome for patients. Recently, polycaprolactone has been engineered, offering flexibility and an extensive surface-area-to volume ratio. There remains potential for further innovations in the production and application of biosensors for wound healing and this review emphasize the evolution from biomarker detection to smart dressings and the integration of machine learning in crafting personalized wound patches for prolonged use
A Model For Improving The Professional Competencies Of Future Technology Teachers Based On An Integrative Approach
Get PDFThis article highlights interdisciplinary integration and some of the requirements and conditions for establishing integrative education in higher education institutions. It also provides a detailed description of the general characteristics of integrative lessons. The integration of general professional and specialized subjects in higher education institutions, along with the implementation of career-oriented education, plays a crucial role in the preparation of future professionals. The teaching of all subjects should be systematically coordinated and aimed at a single goal: to prepare networked specialists who can professionally adapt to the demands of the times. In this regard, ensuring the content of educational materials is of paramount importance. To achieve this goal, it is advisable to develop the scientific and pedagogical foundations for integrating academic subjects within the educational content, to improve the curriculum based on the requirements of liberalizing the educational process, to create a new generation of educational programs and textbooks with integrative content, and to develop and adopt the integration of educational content. Implementing the integration of sciences is an effective method for developing the professional competence of future technology teachers, requiring interconnectedness of subject topics and interdisciplinary connections. Introducing various levels of integration into the educational process saves students' time and effort, expands their cognitive abilities, and creates mechanisms for predicting the outcomes of the learning process based on inter-subject integration. Furthermore, it establishes the legal and methodological framework for training and developing the skills of teachers who manage integrated educational processes. The economic efficiency of the learning process is determined based on integrative programs. Additionally, it creates favorable opportunities for widely utilizing international experience in organizing the learning process based on integral programs.
Enhancing Cybersecurity on IoBT Networks through Quantum Mutual Transport Layer Security
Get PDFIn the modern era, safeguarding against cyber threats has become imperative for organizational security. With the evolution of technology, cybersecurity measures have grown in complexity, necessitating stringent protocols for defense. The military sector, influenced by technological advancements, faces coordination challenges amidst emerging threats targeting operational coherence. The advent of the Internet of Battlefields Things (IoBT) has introduced substantial advantages across diverse battlegrounds, demanding robust protocols for secure data transmission and management. This paper explores the integration of Quantum Technology with Mutual Transport Layer Security (mTLS) to fortify IoBT networks, ensuring enhanced confidentiality, integrity, authentication, and non-repudiation. Quantum-enhanced mTLS leverages quantum key distribution (QKD) and post-quantum cryptography to thwart advanced cyber threats, including quantum computing-based attacks. This integration offers unprecedented security, mutual authentication, and data privacy, making it a pivotal solution for future-proofing IoBT networks against evolving cyber threats
Cultivating Patriotism: A Nationalism Education Program for the Children of Indonesian Migrants in Malaysia
Get PDFThis three-day nationalism education program for the children of Indonesian migrant workers (TKI) in Pulau Pinang, Malaysia, sought to foster patriotism and reinforce Indonesian national identity. Targeting children aged 7–15 from families within the Pertubuhan Masyarakat Indonesia di Pulau Pinang (PERMAI), the initiative combined Indonesian language instruction, cultural arts appreciation, and historical education through an engaging and interactive approach. Activities such as storytelling, educational videos, and cultural performances were designed to resonate deeply with participants, enhancing their understanding of nationalism. Observations and participant feedback highlighted the program's success, with children demonstrating heightened enthusiasm and active involvement in activities like history quizzes and traditional arts showcases. The program underscored the pivotal role of community organizations such as PERMAI in preserving national identity, while also emphasizing the importance of collaboration among universities, governments, and communities in sustaining nationalism education abroad. Despite its success, challenges remain, particularly regarding the limited availability of formal nationalism-based education for migrant families. Addressing this issue will require stronger inter-agency cooperation and the strategic use of technology to broaden educational access. This program serves as a scalable model for fostering nationalism among the children of Indonesian migrant workers globally
Poor Eating Habits and Chronic Malnutrition Among Adolescent Girls in Secondary Schools in Popokabaka, Democratic Republic of Congo, 2018
Get PDFIntroduction:Adopting poor eating habits during adolescence can dramatically affect nutritional and health status in adulthood. To break the intergenerational cycle of malnutrition in the Congolese population, it is crucial to focus more on adolescent girls. This study aims to assess the prevalence of poor eating habits and chronic malnutrition among teenage girls and to examine the link between the two variables.Materials and Methods: An analytical cross-sectional study was conducted in April 2018 among 434 adolescent girls aged 12 to 17 years attending secondary schools in Popokabaka. Structured interviews were conducted using 24-hour recall and weekly food frequency techniques, supplemented with clinical, anthropometric, and biochemical assessments. Chi-square tests and logistic regression analyses were used to analyze the data.Results: The most common poor eating habits among adolescent girls included inadequate consumption of whole grains and cereals, frequent consumption of fatty foods, sweets, and highly salted foods prepared outside the home (fast foods, 95.4%), snacks (94.0%), and sugary beverages (90.7%). Chronic malnutrition affected 14.5% of the adolescents. Frequent consumption of snacks (AOR=0.13; 95% CI=0.05–0.30) and inadequate consumption of whole grains and cereals (AOR=9.37; 95% CI=2.69–32.67) were statistically associated with chronic malnutrition.Conclusion: Chronic malnutrition among adolescent girls attending secondary schools in Popokabaka is linked to their poor eating habits.Keywords: Poor eating habits; chronic malnutrition; adolescent girls; DR
Feasibility Study of Instant Noodle Consumption in Toddlers: Nutritional Challenges and Strategic Interventions Subtitle if needed
Get PDFThe high consumption of instant noodles among toddlers has raised concerns regarding its nutritional adequacy and potential health implications. This feasibility study aims to explore the factors influencing instant noodle consumption in toddlers, assess its impact on nutritional status, and propose strategic interventions to mitigate associated challenges. Data were gathered through dietary surveys, parental interviews, and nutritional analyses of popular instant noodle products. The findings indicate that instant noodles are often favored due to affordability, convenience, and palatability, but they are deficient in essential nutrients such as protein, vitamins, and minerals. Overreliance on such products poses risks of malnutrition and delayed growth in toddlers. To address these challenges, this study recommends interventions such as product fortification, parental education on balanced diets, and the promotion of healthier, affordable alternatives. The study underscores the importance of multi-sectoral collaboration to ensure sustainable nutritional improvements for young children
Design and Implementation of an Arduino-Based Solar Tracker to Maximize Energy Efficiency
Get PDFThis paper presents the design and implementation of a solar tracker aimed at improving the energy efficiency of solar panels. The system uses an Arduino Uno microcontroller to coordinate light detection, motor control, and real-time orientation adjustments. It is equipped with light-dependent resistors, stepper motors, and motor drivers to ensure precise tracking of the sun’s position throughout the day.The control algorithm compares light intensity values measured by sensors strategically positioned on the panel to determine the optimal orientation. Adjustments are made automatically to maximize solar energy capture. Experimental testing was conducted over three days, with measurements taken at different times. The results show that the solar tracker significantly improves energy output compared to a fixed solar panel, with an increase of up to 30 percent.The obtained results are compared with findings from the scientific literature, demonstrating that the proposed system achieves comparable or better performance while maintaining simplicity and low cost. This makes it suitable for applications in domestic and agricultural settings where budget constraints are a concern.The study underscores the importance of low-cost, accessible technology for advancing renewable energy adoption. The proposed solar tracker offers a practical and efficient solution for users seeking to optimize their solar panel systems
Cantines Scolaires Gouvernementales Et Les Enjeux De Sa Pérennisation : Cas De La Commune De Zè Au Bénin
Get PDFCet article est une recherche qui s’est proposée d’analyser le fonctionnement des cantines scolaires gouvernementales installées dans le cadre du PNASI au Bénin. A cet effet, un échantillonnage à choix raisonné basé sur une approche participative a permis de collecter les données auprès de 703 acteurs intervenant dans ce domaine. Les données collectées ont été analysées grâce aux logiciels SPSS et Excel, et ont révélé que pour les cantines scolaires gouvernementales dans les écoles maternelles et primaires, il existe des comités de gestion composés de 6 membres en moyenne. Ces comités mis en place sont confrontés à plusieurs difficultés liées au fonctionnement des cantines dont les principales sont la cherté de certaines denrées alimentaires, le bénévolat des cantinières, le non-paiement des contributions (25 ou 50FCFA) et l’effectif pléthorique des élèves. Il en ressort aussi que la participation active de la société civile dans le processus d’implantation des cantines scolaires gouvernementales induirait une bonne synergie d’actions entre les acteurs locaux et un fort engagement communautaire dans la mobilisation de ressources, d’où l’effet immédiat de la pérennisation des cantines scolaires gouvernementales