مجلة جامعة فزان التطبيقية

Utilizing Artificial Neural Network Models for Predicting High School Students' Final Grades and the Impact of Social Factors

2024-06-19T13:33:13+00:00

In response to ongoing technical changes, it has become imperative to evolve educational methodologies to provide information when needed for making appropriate decisions. This necessitates a shift in the skills possessed by learners to keep pace with such advancements and carry out associated tasks. The primary challenge lies in the scarcity of using Artificial Neural Networks (ANN), one of the most important artificial intelligence tools due to their immense capability for prediction, classification, and simulation of human intelligence. They aid institutions in achieving their objectives and addressing the challenges they face. Hence, this research aims to utilize neural networks in predicting the outcomes of high school students and examine how neural networks integrate in forecasting final academic performance, focusing on social factors such as gender, family size, and parental occupations, among others. The research seeks to enhance the accuracy of academic performance predictions by incorporating these social aspects into the neural model, enabling a deeper understanding of the relationships between these factors and academic success.

The findings of this research offer valuable insights for educational institutions, which can be used to enhance academic support and develop educational plans. The attention to social factors is attributed to their impact and significance in shaping an active context that reflects the challenges students may encounter during their academic journey.

The research recommends using neural networks and their applications, employing artificial intelligence in machine learning and deep learning applications, such as other predictions, classification, and clustering. These aids in enhancing the educational proces

Experimental Study of a Solar Water Heater for the Effect of Solar Radiation and Mass Flow Rates

2024-08-28T00:32:01+00:00

Thermal applications and power generation from solar radiation are emerging rapidly as the world continues to thrive for future energy sources, other than conventional sources. The solar thermal collector is one of the basic needs to convert the sun’s energy to usable forms. Broadly, these collectors are divided into two groups, non-concentrating solar thermal collectors and concentrating solar thermal collectors. This report aims to review the ‘Solar Flat Plate Thermal Collector’ which falls under the non-concentrating thermal collectors.

The Experimental measurements indicate that the solarimeter heated the water in the tank to be absorbed by the solar collector. Moreover, the water temperature measurements at different points. Results indicate that the design of the thermosiphon solar water heating system was a success. Furthermore, the experimental apparatus described in this paper is a valuable addition to the laboratory.

Evaluation of the Anti-inflammatory Properties of Traditional Herbal Medicines in Macrophage Cells Stimulated with High Glucose Levels

2024-09-09T13:37:49+00:00

Type 2 diabetes (T2DM) causes inflammation and organ dysfunction as well as oxidative stress. Chronic inflammation is strongly linked to diabetes complications. Medications to treat T2DM are available but have limitations and harmful side effects. Traditional herbal therapies (THT) offer a promising solution due to their safety, affordability, and wide acceptance. Objective: The study aimed to examine the anti-inflammatory properties of Artemisia afra, Cinnamon verum, and Trigonella foenum-graecum, commonly used in African countries for treating diabetes and its progression. Method: In stock extracts of plant extracts (Artemisia afra leaves, Cinnamon verum bark, and Trigonella foenum-graecum seeds) were prepared in ethanol solutions 70%. A macrophage cell line (RAW 264.7) was exposed to high-glucose levels, followed by exposure to plant extracts. Results: The results were compared with those of pharmaceutical-grade metformin. The present study revealed that Artemisia afra, Cinnamon verum, and Trigonella foenum-graecum extracts significantly inhibited the expression of several mediators of inflammation by the cell, including TNF-α, IL-6, G-CSF, RANTES and NO. Metformin had no effect on RANTES or NO levels. Results indicated that different herbs inhibited inflammatory mediators at different concentrations. Artemisia afra and metformin had the lowest cytotoxicity compared to Cinnamon verum and Trigonella foenum-graecum. Conclusion: Artemisia afra was found to exhibit a higher anti-inflammatory effect than the other herbs tested. These findings suggest that Artemisia afra

Assessment Of Some Physicochemical And Biological Characteristics Of Spring Water In Al Qayqab, Libya

2024-09-09T13:49:24+00:00

Drinking water to be consumed safely should be qualified by applying physical, chemical, and biological tests on a routine basis. This study aims to evaluate the portability of the water in both eastern and western springs in Al Qayqab ( El-Ghegab) town located in the eastern north of Libya, by assessing some physic-chemical and microbiological parameters including; PH, Total dissolved solids (TDS), Turbidity, sodium (Na), and potassium(K); identify some heavy metals like Lead (Pb), Cadmium(Cd), Arsenic (As), and Mercury (Hg) and microbial contents including Total coliform count (TCC) and E coli as indicating to sewage pollution and comparing with guideline standards set by WHO and identify the differences in characteristics between the two spring. The analysis of selected samples at both eastern and western springs presented the average values of physical-chemical parameters; pH, turbidity, TDS, and K fall within the permissible limits set by WHO. Na means concentrations in both springs, eastern and western are 58.8 mg/l and 54 mg/l respectively, which slightly exceeded the permissible limits. We did not detect heavy metals of As, Cd, Pb, and Hg in all evaluated samples. The biological analysis detected total coli form and E coli in samples of the eastern spring indicating fecal contamination in this spring.

استخدام النماذج الرياضية لمعرفة درجة انتشار فيروس كورونا في ليبيا خلال الفترة من 2020.4.13م إلى 2021.5.1م

2024-09-09T14:02:55+00:00

تُشكل الأمراض المعدية تحدياً كبيراً للبحث العلمي أمام تفشيها السريع والخطير، وكمثال فيروس كورونا (كوفيد-19) الذي تطور إلى جائحة في الآونة الأخيرة؛ بسبب طبيعته المعدية، وخصائصه المتغيرة بشكل متكرر، والافتقار إلى لقاح، أو أدوية فعَّالة له. لذا هناك حاجة ماسة إلى نموذج لقياس، ومنع الانتشار المستمر لهذا الوباء، ولتقديم خدمات صحية ذكية وللحد من الآثار السلبية للوباء.

تَعرض الورقة دراسة سلوك فيروس كوفيد-19 من خلال ما يعرف بنموذجة الأوبئة، وذلك باستخدام نموذج SIR حيث يتم عرض نتائج التحليل كوسيلة للتنبؤ بتفشي المرض في ليبيا في الفترة بين 2020.4.13م إلى 2020.5.1م

Special Properties of Differential Subordination Functions in the Classes of Analytic Functions

2024-09-09T15:23:30+00:00

This work presents a novel investigation a generalized derivative operator which is a multivalent function by using Hadamard product in the field of geometric function theory. Also, we explain the use of the convexity and the starlikness properties of a given function to consequences of superordination and differential subordination with a specific focus on sandwich theorems

Storage Oil Tank Fire Accidents (The Sidra Oil Port Fire Accident Case Study, In Libya 2014)

2024-09-23T22:21:49+00:00

Large outdoor crude oil storage tank fires pose substantial risks, including severe property damage, economic disruption, and environmental harm. Storage facilities, such as oil warehouses, supply depots, and surrounding areas, are particularly hazardous due to the flammable and volatile nature of their contents. In 2014, a significant fire occurred at the Sidra Oil Port in Libya, triggered by armed conflict. This study assesses the response of the port administration and firefighting personnel to the incident through a structured questionnaire. Data were analyzed using the Statistical Package for the Social Sciences (SPSS). The findings reveal that 94% of personnel lacked adequate training in combating oil storage tank fires, severely impairing their response efficiency during the crisis. Alarmingly, 68% of workers reported that they had not received the necessary training even after the incident, highlighting systemic neglect by the port administration and the associated company in managing fire-related risks. Furthermore, the investigation revealed that not all 19 oil storage tanks at the Sidra Oil Port were equipped with automatic fire alarm systems, underscoring the urgent need for enhanced fire prevention measures and improved safety protocols to mitigate future emergencies.

تحديد نسبة الكافيين وبعض المكونات في عينات من المشروبات الغازية والطاقة

2024-10-05T01:28:47+00:00

أجري هذا البحث لتقدير بعض المحتويات الكيميائية في عينات من مشروبات الطاقة والمشروبات الغازية، حيث جمعت ( 20 ) عينة مختلفة بطريقة عشوائية من أسواق مدينة تراغن. استخدمت طريقة قياس الامتصاصية باستخدام جهاز UV-Vis spectrophotometer لقياس كمية الكافيين . كما استخدمت طريقة الفروق الوزنية لتقدير حجم CO₂ والرطوبة و المواد الصلبة الكلية، وطريقة المعايرة في تقدير كمية حمض الستريك وحمض الأسكوربيك في هذه العينات. ومن خلال النتائج المتحصل عليها وجد أن أغلب المشروبات التي تم دراستها لا تتوافق مع المواصفات والاشتراطات القياسية مما يؤثر على صحة وسلامة المستهلكين في حال الإفراط من تناولها