University of Science and Technology, Yemen (USTY): Journals / جامعة العلوم والتكنولوجي
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The Role of Artificial Intelligence in Learning Empowerment for Primary School Students in Republic of Yemen: A survey of Experts\u27 Opinions at Sana\u27a University
No full textPrimary school students in the Republic of Yemen face many problems as a result of the educational system\u27s inability to single out education and adopt the principle of individual differences and the theory of multiple intelligences.This was due to the scarcity of experts specialized in artificial intelligence in Ministry of Education who could have an active role in solving problems. This has led to students\u27 negative attitudes towards learning; hence, this study aimed to identify the role that artificial intelligence could play in empowering students learning and increasing their desire for learning. The study adopted the descriptive approach and the questionnaire was distributed to a sample of 26 experts and specialists in artificial intelligence at Sana\u27a University in Computer College, the College of Engineering (Communication Department), and the College of Education (Educational Technology Department) to collect data about their opinions of the role that artificial intelligence could play in empowering primary school students learning in the Republic of Yemen.The findings revealed that the degree of artificial intelligence importance in empowering primary school students learning was high at the level of the four dimensions: (smart content, smart systems, student, teacher). The study recommends the establishment of a center for artificial intelligence in the Ministry of Education for qualifying schools, and technical and administrative cadres in artificial intelligence. The study also recommends the Ministry to grant an award for students who produce programs and applications of artificial intelligence, as well as an award for schools that use artificial intelligence in education
Comparative Study between Plant and Animal Sources of Omega-3 Fatty Acid in Their Potential Role of Regulating Blood Glucose and Lipid Profile in Healthy Volunteers
Get PDFObjective: This study is aimed to compare Omega-3 fatty acid of animal source (Shark liver oil=SLO) and plant source (Nigella Sativa=NS) in their potential hypoglycaemic and hypolipidemic effects through measuring total cholesterol, triglycerides, low density lipoprotein and other possible effect on serum electrolytes including serum calcium, sodium and potassium in healthy volunteers. Methods: The current study was conducted in the Department of Pharmacology –UST. Eighteen healthy students (age 23-31 years) participated as volunteers. Nigella Sativa (Phenomenale 1200 mg/day) was taken for 2 weeks. Washout period for 2 weeks was done. Then SLO (500mg/day) was taken for another 2 weeks. Results: The effect of Nigella Sativa (NS) and shark liver oil (SLO) on different parameters was measured. It was shown that NS had significantly (P‹ 0.05) reduced Fasting Blood Sugar level from 4.80±0.065 mmol/l in control group to 4.46±0.153 mmol/l in NS group. Both NS and SLO produced insignificant change (P› 0.05) in total cholesterol and LDL-c as compared with control. On the other hand, SLO resulted in significant increase in FBS and Total Glycerides as compared with control and NS group. Moreover, NS had resulted in significant increasing in serum sodium as compared with the control and SLO groups. Conclusion: Both drugs have omega-3 fatty acid in their component; in addition NS has also omega-6 fatty acid. NS showed antidiabetic activity as it significantly reduced FBS. There is no change in lipid profiles of NS group in normal volunteers
في المؤسسات الكبيرة و دراسة تأثيره على أداء الشبكة IPv6 تطوير إطار عمل للانتقال إلى
No full textفي ظل التطور الحاصل في مجال تكنولوجيا المعلومات و الثورة التقنية في وسائل الاتصال و الزيادة الهائلة في عدد الأجهزة المختلفة التي تستخدم عناوين برتوكول الانترنت (IP) مثل أجهزة (الحاسوب الشخصي,الحاسوب المحمول , الحاسوب اللوحي , الهواتف الذكية, و الأجهزة الذكية التي تتعامل مع IP ) لترتبط بالشبكة العالمية الانترنت, فإن عناوين برتوكول الانترنت الإصدار الرابع IPv4 لم تعد كافية لتلبية كافة احتياجات طالبي خدمة الانترنت حول العالم , و بالتالي فإن الانتقال إلى الإصدار السادس من برتوكول الانترنت IPv6 أصبح ضرورة ملحة خاصة في الجمهورية اليمنية التي تعاني من قلة العناوين العالمية في IPv4 , في هذه الورقة سيتم مناقشة برتوكول الانترنت IPv6 و ذكر أهم الميزات و الخدمات التي سيوفرها تطبيق عناوين IPv6 , كذلك مناقشة طرق الانتقال إلى IPv6 و المراحل التي لابد من تنفيذها حتى يتم تطبيق عناوين IPv6 , كما سيتم تنفيذ دراسة عملية بين تطبيق عناوين IPv4 وعناوين IPv6 على أجهزة الشبكة و تأثير ذلك على أداء وسلوك الشبكة و زمن الاستجابة عند استخدام تطبيقات مختلفة مثل ( تصفح الانترنت , و البريد الإلكتروني و نقل الملفات و الاتصال الصوتي والاتصال باستخدام الصوت و الصورة الفيديو ). و قد خلصت الدراسة إلى أن الانتقال إلى IPv6 في المؤسسات الكبيرة سيحسن من أداء الشبكة باستخدام التطبيقات المختلفة على الشبكة , باستثناء التأخير في استخدام تطبيقات الاتصال بالصوت و الصورة (Video) الناتج عن جودة الخدمة و أولويات تسليم حزم البيانات
Analyzing the Factors that Influence Enhancing Student Performance in Oman using Data Mining
Get PDFEducation field is a sign of advancement over the countries that can adopt technology to serve it. It will help to improve and enhance future achievements and be in touch with the development of technology utilizing solutions that extract student data, including their school records and other vital information about their performance, which can facilitate this process. These data are then analyzed to identify factors that affect the academic performance of the students at the school by expanding data miningtechniques to enhance student academic performance. These factors are examined to develop a predictive model. Machine learning (ML) is one artificial intelligence (AI) field that can use such a model that supports educational institutions and decision-makers. A predictive method is applied using the data mining (DM) technique to take proactive action in identifying and anticipating the student\u27s path. The data was analyzed, and the findings showed that the decision tree algorithm recorded the fastest training timefor every 1000 rows. Also, the fast-scoring time for 1000 rows was in the decision tree algorithm, which was around 195 milliseconds, and the longest scoring time occurred in the random forest algorithm, which was two seconds. The top percent of classification errors reached 51% for the logistic regression algorithm and around +-1.5% of standard deviation. It took 520 mile-second for scoring time with 690 Gains for 67 m/s training time in every 1000 rows of the datasets. The findings of this study can helpparents and teachers better understand the factors that influence students\u27 academic performance and support them in assisting students with improving their academic performance
Analysis of Business Intelligence Systems Transmission Session
Get PDFInformation and Communication Technology (ICT) is the central part of Intelligent systems. Business Intelligence (BI) utilizes ICT resources and capabilities to enhance decision-making from the available information. One of the core components of ICT resources is the network. Hypertext Transfer Protocol (HTTP) is an application layer protocol in a network model responsible for handling "requests" in a transmission session. Transmission Control Protocol (TCP) establishes connections session and keeps track of the state of the communication session. Unfortunately, a request from a critical online transaction over TCP in a BI environment is bound to face some uncertainty. There is a lack of studies on the impact of communication over transmission sessions on BI operations. This paper presented an experimental evaluation of the BI transaction transmission session. Various transactions were performed to monitor and analyze the request made with HTTP over a TCP transmission session. Both the HTTP and TCP features for all transactions were captured. The finding indicates that time is highly associated with less traffic congestion and transaction overhead
The Level of Coexistence with Pressures Among Talented and Average Students at Ajloun Area in Relation to Some Demographic Variables and Academic Achievement
No full textهدفت هذه الدراسة إلى الكشف عن مستوى التعايش مع الضغوط لدى عينة من الطلبة الموهوبين والعاديين في مدارس محافظة عجلون، الأردن وعلاقته ببعض المتغيرات الديموغرافية (النوع، الصف، والمستوى التعليمي للأب والأم) والتحصيل الأكاديمي. ولتحقيق أغراض الدراسة استخدم الباحث اختبار التعايش مع الضغوط الذي تم إعداده اعتمادا على أسس الإرشاد النفسي والذي طوره Davis، Eshelman وMcKay (2000)، وتم إيجاد دلالات صدق وثبات هذا المقياس، وتكونت العينة من 291 من الطلبة منهم 96 من الطلبة الموهوبين، و195 من الطلبة العاديين، وتم اختيارهم بطريقة عشوائية طبقية من الصفوف الأساسية العليا والثانوية، وتم تحليل البيانات من خلال إيجاد المتوسطات الحسابية والانحرافات المعيارية وإيجاد قيمة (ت) ومعاملات الارتباط. وأظهرت نتائج الدراسة أن مستوى التعايش مع الضغوط بين الطلبة العاديين والموهوبين يعد مرتفعاً وأعلى من المتوسط، وتوجد فروق ذات دلالة إحصائية عند مستوى دلالة (α≤0.05) في درجات التعايش مع الضغوط الكلي بين الطلبة (الموهوبين والعاديين) تبعا لنوع الطالب ً لصالح العاديين ولا توجد فروق ذات دلالة إحصائية عند مستوى دلالة (α≤0.05) في درجات التعايش مع الضغوط الكلي بين الطلبة (الموهوبين والعاديين) تبعاً لمتغير الصف، كما تبين وجود فروق ذات دلالة إحصائية في درجات التعايش مع الضغوط الكلي بين الطلبة (الموهوبين) تبعاً لمتغير النوع لصالح الإناث)، كما تبين وجود فروق ذات دلالة إحصائية في درجات التعايش مع الضغوط الكلي بين الطلبة (العاديين) تبعاً لمتغير الجنس الصالح الذكور، كما تبين عدم وجود فروق ذات دلالة إحصائية في مستوى التعايش مع الضغوط بين الطلبة العاديين والموهوبين تبعاً لمتغير المستوى التعليمي للأب والأم، كما تبين وجود علاقة ارتباطيه إيجابية في مستوى التعايش مع الضغوط الكلي بين الطلبة (العاديين) والتحصيل الأكاديمي، كما نوقشت النتائج في ضوء الأدب النظري والدراسات السابقة، وتم اقتراح بعض التوصيات بناءً على نتائج الدراسة.The study aimed to identify the level of coexistence with pressures among a sample of talented and average students at schools in Ajloun area, Jordan in relation to some demographic variables, such as gender, class, educational level of parents, and academic achievement. To achieve this, the coexistence with pressures test, which was prepared according to psychological counseling and developed by Davis, Eshelman, and McKay (2000), was used. The validity and reliability of the test was tested. The sample consisted of 291 (96 talented students and 195 average students), who were selected by the random stratified method from high basic and secondary schools. The data was analyzed by using the arithmetic means, standard deviation, T. Test, ANOVA and the correlation coefficients. The results showed that the level of coexistence with pressures between the talented and average students was high and more than the medium, and there were statistically significant differences (α≤0.05) in the total degree of coexistence with pressures between talented and average students attributed to students type in favor of the average students. There were not any statistically significant differences in the total degree of coexistence with pressures between talented and average students attributed to the class variable. However, there were statistically significant differences (α≤0.05) in the total degree of coexistence with pressures among talented students attributed to the gender variable in favor of females, and there were statistically significant differences (α≤0.05) in the total degree of coexistence with pressures among average students attributed to gender variable in favor of males. Also, there were not any statistically significant differences in the total degree of coexistence with pressures between talented and average students attributed to parents’ education variable. There was a positive correlation coefficient in the level of coexistence with pressures degrees between the average students and the academic achievement. The results were discussed in the light of the theoretical framework and previous studies. In view of the findings, the study concluded with some recommendations
The Impact of the Defensive Strategy on the Level of Organizational Performance: A Field Study at Yemeni Banks
No full textهدفت هذه الدراسة إلى تحديد أثر الاستراتيجية المدافعة في الأداء المنظمي وفقاً لنموذج بطاقة الأداء المتوازن بأبعادها: (التعلم والنمو، والعمليات، والعملاء، والبعد المالي) في البنوك اليمنية، واستخدمت الدراسة المنهج الوصفي التحليلي، واعتمدت على الاستبانة أداة لجمع البيانات، وتكون مجتمع الدراسة من (1525) موظفاً في الوظائف القيادية والإشرافية، في البنوك اليمنية, وتم اختيار عينة الدراسة نسبياً مع حجم المجتمع لكل بنك مع التعديل للبنوك التي حجم المجتمع بها قليل, حيث بلغت (322) موظفاً يمثلون مجتمع الدراسة، وفي ضوء ذلك تم جمع وتحليل البيانات، وكذلك اختبار جميع الفرضيات باستخدام برنامج الحزم الإحصائية في العلوم الاجتماعية (SPSS)، وتوصلت الدراسة إلى أن للاستراتيجية المدافعة أثراً إيجابياً في الأداء المنظمي المتحقق في البنوك اليمنية، وأوصت بضرورة الاهتمام بالاستراتيجية المطبقة في البنوك اليمنية؛ بصفة أساسية ومهمة في جميع مراحل العملية الإدارية، وفي ظل الإمكانية المتاحة؛ لأن ذلك سوف يسهم في تحسين الأداء المنظمي للبنوك اليمنية مجتمع الدراسة.The study aimed to identify the impact of the defensive strategy on the level of organizational performance, according to the balanced scorecard model covering all of its dimensions of finance, clients, operations and learning and growth at Yemeni banks. The study adopted the descriptive analytical method, and used a questionnaire for data collection. The study population was (1525) employees in supervisory positions at Yemeni banks and the study sample consisted of (322) employees, representing the study population. In light of this, data were collected and analyzed, and all hypotheses were tested using SPSS. The study results revealed that the defensive strategy has a positive impact on the level of organizational performance achieved at Yemeni banks. The study recommends paying attention to the strategies used in the organization as a basic and important element in all stages of the administrative process, within the available facilities, because this will contribute to improving the organizational performance of the Yemeni banks under study
The Degree of Using Teaching Strategies by the Teaching Staff in the Faculty of Education - Sana\u27a University from the Students’ Perspectives
No full textThis study aimed to identify the degree of using teaching strategies by teachers in the Faculty of Education – Sana\u27a University from their students’ perspectives, and to find out to what extent there are significant differences between means of students’ perspectives attributed to their specializations and gender. For the purpose of achieving these objectives, the researcherused the descriptive, evaluative method, and designed a questionnaire of 32 teaching strategies to measure students’ opinions. The questionnaire was administered to a sample of 270 male and female students, who were selected by the stratum random method. The study results showed that the level of using teaching strategies in the Faculty of Education scored a mean of (2.59) at a relative weight of (59.02). From the students’ perspective, the most used strategies were lecturing, concept maps, dialogue, discussions,brain storming, deduction and induction, and text analysis, whereas the least used were discovering, electronic learning, role play, peer teaching, field visits, debate, participatory teaching, contract strategy, six hats, learning cycle and flipped learning. There were no statistically significance differences at the level of (0.05) between the means of students’ perspectives about using teaching strategies attributed to their gender and specialization. Based on the results, the study recommends using various effective strategies, training teaching staff on using teaching strategies and segregating students into classrooms according to quality assurance standards
Enterprise Resource Planning System Requirements and its Impact on the Success of its Application: A Field Study at Mobile Phone Companies in Yemen
No full textThis study aimed to determine the impact of organizational requirements for Enterprise Resource Planning (ERP) system on the success of its application at mobile phone companies in the Republic of Yemen for the year 2019. The descriptive analytical approach was used with a questionnaire as a tool for collecting data from a sample of 299 users. The study results showeda statistically significant impact of organizational requirements for ERP system requirements on the success of its application. The study concluded that organizational culture is the most important dimension among the organizational requirements for its role in accepting technological change and reducing its resistance. The study recommends the importance of translating the study results in the future planning of applying the ERP system at Yemeni organizations
CFD Simulation of Air Pollution Distribution and Its Effect on Patients in Hospital Operating Rooms
Get PDFThis paper uses the CFD technique to simulate the internal environment of a hospital operating room, including the surgical area that includes the patientand the surgical team. Moreover, this work provides mathematical simulation of many models to be placed in the air entry and air exit areas in the operating room to obtainthe optimal model of air distribution within the operating room. The results obtained matched well with experimental data from approved literature and standards. These results found that airflow and air velocity significantly affect the patient’s thermal comfort in the operating room.Besides, it is observed that some recirculation zone is formed, and this is a result of the heat generated by the surgical team and the accelerated air. This region is considered a source for the survival of the polluted air in the room.
Keywords: CFD, Operating room, Numerical analysis