American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS)
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Evaluation of the Agro-Ecological Sustainability of the Banana Production System: The African Food Company Case
Full text linkThe sustainability of agricultural activity, from production to marketing, has been discussed since the twentieth century until the present day. The present study aimed to evaluate the state of sustainability of the irrigated fruit agroecosystem (banana), as in the case of The African Food Company (TAFC). Exploratory and descriptive methods were used to assess the environmental, economic and social dimension of TAFC\u27s sustainability. It was noticeable that the agroecosystem is environmentally sustainable despite having presented an indicator in a critical state (energy consumption). The economic dimension presented sustainable development indices (SDI S3) ranging from stable to excellent, which suggests that the agroecosystem contributes to the guarantee of its self-sustenance, as well as to the leverage of the local and regional economy. The social dimension presented indices ranging from stable to excellent, with only a low index in the level of education. In short, TAFC has a stable sustainability index, as it presents resilient, productive practices with a level of equity
Student-Centric E-Commerce Platform for Local Business Growth
Full text linkE-commerce, especially the marketplace is growing rapidly, offering convenience, accessibility, and an extensive array of products and services. However, the marketplace has become too general, making it challenging for university students to find budget-friendly and locally relevant products for their daily needs and for local businesses to gain visibility. This project addresses the limitations of the current e-commerce marketplace by developing a segmented e-commerce platform for university students. The features implemented in the platform include common marketplace features that have been tailored to align with the platform\u27s objectives, as well as features like university-base filters to prioritize the visibility of products from sellers within the same university as buyers or in the closest proximity and dedicated section for local business promotion. The research methodology used for carrying out this project is Extreme Programming (XP) which enhances customer collaboration and responsiveness to changing requirements. This methodology is employed due to the lack of comprehensive research materials and the absence of a closely similar existing system for analysis, coupled with the necessity for rapid implementation based on customer feedback. The key technologies used for the development of the project include Next.js a Javascript framework, MongodDB Atlas a cloud database, Firebase a backend as a service and Aws S3 an object storage service
Study to Improve Engineering Properties of the Mixtures of Cinder, Natural Pozzolana and Lateritic Soils for Construction of Surfacing Layers of Low Volume Roads in Mbeya Region Tanzania
Full text linkThe availability of suitable gravel materials for road construction that meet specified standards are becoming scarce and the use of available marginal materials shows challenges of not meeting engineering properties for construction of surfacing layers of Low Volume Roads (LVRs). This study aims at investigating the engineering properties of the mixtures of marginal materials which are natural cinder gravel, natural pozzolana and lateritic soils. Natural cinder and natural pozzolana were sourced from Ituha area in Mbeya Region and lateritic soils were sourced from Busale area in Tukuyu District Mbeya Region. In order to improve engineering properties of these marginal materials blending process of the three source materials was conducted. Characterization of source materials and four different blends which are 19La22Po59Ci, 21La20Po59Ci, 23La18Po59Ci and 25La16Po59Ci used for this study were conducted. The tests performed includes particle size distribution, Atterberg limit, compaction test and California bearing ratio.Laboratory test results indicates that all three source materials did not meet criteria to be used for construction of surfacing layer materials of LVRs in Tanzania. The results indicate that all four blends used for this study meet the specification as gravel materials for the construction of surfacing layers of LVRs in Tanzania. This is because the GC and SP values are within the recommended ranges and CBR values are above the minimum of 15%. From the results of this study, it is recommended to improve the engineering properties of marginal materials through blending techniques which could reduce the cost of construction and solve the challenge of scarce suitable materials in many areas in Tanzania
Ameliorate Effect of Ajwa (Phoenix dactylifera) on C-Reactive Protein, Lipid Profile and Cardiac Histopathology in Rabbits
Full text linkBackground: High fat diet causes oxidation of accumulated fat cells which leads to Atherosclerosis. The inflammatory marker C-reactive protein has recently been identified as an independent predictor of future coronary heart disease. The inflammatory marker C-reactive protein has recently been identified as an independent predictor of future coronary heart disease. Present study evaluated the cardioprotective role of Ajwa seed paste on lipid profile and C-reactive protein (CRP) level in rabbits. Methodology: 7 months old rabbits (n=15) for 30 days were kept in animal house school under standard laboratory conditions. Rabbits were divided into three groups (n=5). Group1 served as control group fed basal diet, group 2 fed high fat diet, group 3 fed high fat diet supplemented with 6gm ajwa seed paste. Feed consumption ratio was determined in all groups on daily basis. Results: Feed consumption ratio showed significant (P>0.05) decrease in group 2and 3 fed high fat diet. In this study, lipid profile (cholesterol, triglyceride, LDL and VLDL) values were increased in group 2 compared to control group. It was found that significant (P>0.05) decrease in the level of bad cholesterol (LDL, VLDL) in group 3 (fed ajwa seed supplemented diet).HDL value showed significant (P>0.05) increase in group 3. HDL is good cholesterol and increased the level of HDL protect against the stroke and heart attack. and increase the level of good cholesterol (HDL).HDL takes the cholesterol from the body and back to liver where liver removes the bad cholesterol. The value of CRP is higher in group 2 due to the consumption of HFD and CRP level in group 3 showed significant (P>0.05) reduction. Conclusion: It is concluded from present study that ajwa seed paste is beneficial for heart health
The Effect of Chicken Manure and Biochar Application on The Growth and Yield of Cauliflower (Brassica oleraceae var. Botritys L)
Full text linkField research was carried out in Raifun village-Maliana Timor Leste from September 2023 to January 2024 at 226 meters above sea level, aiming to determine the effect of chicken manure and biochar on the growth and yield of cauliflower plants. This study used a Randomized Complete Block design (RCBD) that was repeated three times in 3 blocks. the first factor in this study is chicken manure which consists of 3 levels of treatment, namely: without chicken manure (M0), chicken manure dose of 10 t h-1 (M1), and chicken manure with a dose of 20 t h-1. The second factor is biochar which consists of 3 levels of treatment, including: without biochar (B0), biochar 5 t h-1, and biochar 10 t h-1. The results showed that there was an interaction between the two factors in the parameters of plant height, flower weight per plant, and flower weight per hectare. the highest production per hectare was obtained by a combination of a chicken manure treatment dose of 20 t h-1 and a biochar dose of 10 t h-1 of 19.1667 tons. The lowest production per hectare was achieved by a combination of treatments without the application of chicken manure and biochar amounting to 9.1733 tons
Proposal for the implementation of IPTV services at the Polytechnic Higher Institute of Bié, Angola
Full text linkThis research work aims to improve the teaching-learning process using the implementation of IPTV services at the Polytechnic Higher Institute of Bié, based on the requirements of QoS (Quality of Service) and QoE (Quality of Experience) parameters. The implementation of IPTV services provides enormous potential in higher education, its conditions provide an active and collaborative education in the academic environment. The conducted research was a type of applied nature. From the point of view of its objectives, it is exploratory, descriptive and explanatory. To collect the data, the questionnaire survey and the interview were used. It has a qualitative approach and the technical procedure used was bibliographic and case study. The obtained results in the implementation of the proposed solution, it proved to be innovative and effective for the teaching-learning process at the Polytechnic Higher Institute of Bié, allowing the incorporation of VLE (Virtual Learning Environments) such as; the platforms MOOC (Massive Open Online Course), edX, Coursera, OCW MIT, MIRÍADA X, VEDUCA, OPENUPED and education support tools with contents for the use of IPTV, from the configuration of plugins on the plex media server, it allows communication between students and teachers reducing distance
Addressing Adolescent Pregnancy and Maternal and Neonatal Health Services: A Policy and Support System Analysis of Hard-to-Reach Areas in Rangpur, Bangladesh
Full text linkAdolescent pregnancy and child marriage are critical public health issues in Bangladesh, particularly in hard-to-reach (HtR) areas. It brings consequences for young women, including increasing the possibility of high risk of maternal mortality, morbidity, and poor health outcomes for their children. To understand the underlying causes and factors associated with teenage pregnancy and child marriage in the HtR areas this study aim was to reveal the essential causes of adolescent pregnancy and child marriage, improving maternal and neonatal health (MNH) services, and framing an advocacy strategy with government counterparts. It was employed a mixed-methods approach followed a convenient sample technique, incorporating quantitative data from household surveys and qualitative insights from facility visits, focus group discussions, and key informant interviews. The methodology facilitated a detailed examination of the prevailing conditions and attitudes towards child marriage, adolescent pregnancy and gap on MNH services. The results deeply rooted social norms and gender inequality contribute to the perception of early marriage as beneficial.
This is further exacerbated by limited economic opportunities and educational access in these districts. Six out of ten adolescent girls of surveyed household are married, with a significant number of them are going or gone through pregnancy. These phenomena are largely driven by socio-economic factors, including poverty and restricted access to education, which compel families to view marriage to secure a girl\u27s financial future. For both child marriage and adolescent pregnancy, a peer pressure from family and society has been observed. Its highlights the entirely lack of awareness about the health risks associated with[1] child marriage and adolescent pregnancy. Mothers often skip the antenatal care (ANC) and postnatal care (PNC) visits due to ignorance or financial constraint. Additionally, gaps in the availability and quality of MNH services were evident, particularly at the union and upazila levels. Most of the deliveries take place at home (50.3%) under the supervision of birth attendants (both skilled and traditional) of which 26.8% are traditional birth attendants. Overall, the study highlighted social, economic, and cultural elements that contribute to improve levels of child marriage and adolescent pregnancy in Rangpur and Lalmonirhat, specifically in HtR areas. The lack of sufficient access to high-quality MNH services, especially those tailored to meet the needs of adolescents, worsens the health risks faced by young mothers and their newborns. Inadequate enforcement of the legally mandated minimum age for marriage, coupled with a lack of understanding of the health hazards, were identified as substantial elements that contribute to the issue.
Performance Metrics of a Grid Connected Photovoltaic Plant: A Practical Case of the 1.3MW Phakalane Plant in Gaborone, Botswana
Full text linkThe performance of a solar photovoltaic plant can be analyzed using various key performance indicators such as performance ratio, capacity utilization factor, system efficiency, system availability etc. This paper is a presentation of the performance of a 1.3MW grid connected photovoltaic system in Gaborone, Botswana. The methodology utilizes the energy generated and supplied to the grid from January to December 2020 to compute the quality ratios: performance ratio, capacity utilization factor and the technical availability of the plant. During the period of study, the grid connected plant injected 2,245,505.00 kWh of energy to the national grid with the final yield, reference yield, performance ratio and the capacity utilization factor of: 1 724 peak sun hours; 2 196 peak sun hours; 78.5%; and 19.66% respectively. Comparing it with other plants this system’s performance is very good. However, the technical availability of the plant was only 57.4% with Mean Time Before Failure (MTBF) of 129 hours and Mean Time To Repair (MTTR) of 96 hours. Therefore, this paper reveals the impact of grid interference and prolonged downtime on the performance of grid tied PV systems. The study gives insight to engineers, researchers, decision makers and other stakeholders in this field so that focus must be directed to ensure the availability of such power plants especially in Africa where most grids experience frequent tripping
Reliability Optimization in Healthcare Warehouses Through Advanced Quality Assurance Techniques
Full text link“Big data” refers to extremely useful and extensive datasets. A lot of people have been paying attention to it over the last 20 years because of the promising future it holds. The goal of many public and private organizations is to improve customer service by the collection, storage, and analysis of massive volumes of data. The healthcare business extensively uses big data from a wide variety of sources, including patient medical records, test results, hospital records, and Internet of Things devices. Additionally, biomedical research generates a substantial quantity of big data that is relevant to public healthcare. Proper management and analysis of this data are prerequisites for extracting actionable insights from it. This is crucial because without it, using big data analysis to solve problems is like trying to find a needle in a haystack. The only way to overcome the many challenges of processing massive data at each phase is to use state-of-the-art computer tools for big data analysis. For this reason, healthcare professionals who wish to propose solutions that can enhance public health must possess the appropriate infrastructure to methodically generate and evaluate large data. When big data is properly managed, analyzed, and understood, it can open up new possibilities for modern healthcare. That is why numerous industries, healthcare included, are putting in a lot of effort to make the most of this chance and transform it into better services and more money. Medical therapy and personalized treatment stand to benefit greatly from the current healthcare industry\u27s increased emphasis on biomedical data integration
Integration of Advanced Sensors in Smart Transportation Systems: Enhancing Efficiency and Safety
Full text linkThe article examines how Smart Transportation Systems (STS) might revolutionize transportation, using Nigeria as a case study. It addresses worldwide urban transportation obstacles, such as traffic jams and safety concerns, and presents STS as a workable solution, outlining its main features and advantages. The study explores the classification of sensors in STS, including vehicle-based, traffic control, and supporting technologies, and clarifies how they contribute to traffic management, driving assistance, and safety improvements. The research delves into communication protocols as well, with a focus on wireless sensors and Vehicle Ad-hoc Networks (VANETs), which provide real-time data sharing between cars and infrastructure for enhanced traffic updates, route optimization, and safety precautions. The report highlights Nigeria\u27s efforts and emphasizes the potential advantages of universal adoption, while admitting the limited implementation of STS in poor nations. In order to fully realize the advantages of STS in enhancing urban life and transportation systems, not just in Nigeria but also worldwide, it finishes by highlighting the need for ongoing research, legislative frameworks, and infrastructure investment