• Title/Summary/Keyword: Umm Al-Qura University

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Emotion Recognition in Arabic Speech from Saudi Dialect Corpus Using Machine Learning and Deep Learning Algorithms

  • Hanaa Alamri;Hanan S. Alshanbari
    • International Journal of Computer Science & Network Security
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    • v.23 no.8
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    • pp.9-16
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    • 2023
  • Speech can actively elicit feelings and attitudes by using words. It is important for researchers to identify the emotional content contained in speech signals as well as the sort of emotion that resulted from the speech that was made. In this study, we studied the emotion recognition system using a database in Arabic, especially in the Saudi dialect, the database is from a YouTube channel called Telfaz11, The four emotions that were examined were anger, happiness, sadness, and neutral. In our experiments, we extracted features from audio signals, such as Mel Frequency Cepstral Coefficient (MFCC) and Zero-Crossing Rate (ZCR), then we classified emotions using many classification algorithms such as machine learning algorithms (Support Vector Machine (SVM) and K-Nearest Neighbor (KNN)) and deep learning algorithms such as (Convolution Neural Network (CNN) and Long Short-Term Memory (LSTM)). Our Experiments showed that the MFCC feature extraction method and CNN model obtained the best accuracy result with 95%, proving the effectiveness of this classification system in recognizing Arabic spoken emotions.

Modified models predicting punching capacity of edge column-slab joints considering different codes

  • Hamdy A. Elgohary;Mohamed A. El Zareef
    • Structural Engineering and Mechanics
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    • v.89 no.4
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    • pp.363-374
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    • 2024
  • Significant changes have been made to estimate the punching shear capacity for edge column-slab joints in the latest editions of most current codes. The revised equations account for axial forces as well as moments conveyed to columns from slabs, which have a substantial impact on the punching resistance of such joints. Many key design parameters, such as reinforcement-ratio, concrete strength, size-effect, and critical-section perimeter, were treated differently or even ignored in various code provisions. Consequently, wide ranges of predicted punching shear strength were detected by applying different code formulas. Therefore, it is essential to assess the various current Codes' design-equations. Because of the similarity in estimated outcomes, only the ACI, EC, and SNiP are used in this study to cover a wide range of estimation ranges from highly conservative to unconservative. This paper is devoted to analyzing the techniques in these code provisions, comparing the estimated punching resistance with available experimental data, and finally developing efficient models predicting the punching capacity of edge column-slab connections. 63 samples from past investigations were chosen for validation. To appropriately predict the punching shear, newly updated equations for ACI and SNiP are provided based on nonlinear regression analysis. The proposed equations'results match the experimental data quite well.

ON MALCEV ALGEBRA BUNDLES

  • HOWIDA ADEL ALFRAN;K. KAMALAKSHI;R. RAJENDRA;P. SIVA KOTA REDDY
    • Journal of applied mathematics & informatics
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    • v.42 no.1
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    • pp.207-212
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    • 2024
  • In this paper, we study Malcev algebra bundles and Malcev algebra bundles of finite type. Lie algebra bundles and Lie transformation algebra bundles are defined using given Malcev algebra bundle and we conclude some results for finite type.

Obstacles Facing Science Teachers regarding Distance Learning during the COVID-19 Pandemic in Saudi Arabia

  • Alessa, Matar Ahmed
    • International Journal of Computer Science & Network Security
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    • v.22 no.3
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    • pp.326-334
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    • 2022
  • This study aimed to explore science teachers' perceptions of obstacles that have affected their teaching during the COVID-19 pandemic. The sample comprised 204 science teachers in public schools within a Western district of Saudi Arabia. Results revealed that these teachers experienced obstacles across six areas: administration, students, teaching methods, assessment, technology, and learning aids. The study also explored teachers' perceptions of their current experience and offers suggestions for dealing with the identified obstacles.

ON SIMPLICITY OF UNDIRECTED GRAPHS AND CORRESPONDING ADJACENT TOPOLOGICAL SPACES

  • HOWIDA ADEL ALFRAN
    • Journal of applied mathematics & informatics
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    • v.42 no.5
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    • pp.1091-1105
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    • 2024
  • In the theory of undirected simple graphs, we introduce the concept of adjacent topological spaces and analyze the minimization of open sets within these spaces. We define the continuity property of mappings between two adjacent topological spaces associated with undirected simple graphs and explore the connections between homeomorphic adjacent topological spaces and isomorphic graphs. Additionally, we investigate the compactness of adjacent topological spaces and examine the relationship between the connectedness of these spaces and the graphs.

Phytochemical, Antidiabetic, Antioxidant, Antibacterial, Acute and Sub-Chronic Toxicity of Moroccan Arbutus unedo Leaves

  • Latifa Doudach;Hanae Naceiri Mrabti;Samiah Hamad Al-Mijalli;Mohamed Reda Kachmar;Kaoutar Benrahou;Hamza Assaggaf;Ahmed Qasem;Emad Mohamed Abdallah;Bodour Saeed Rajab;Khouloud Harraqui;Mouna Mekkaoui;Abdelhakim Bouyahya;Moulay El Abbes Faouzi
    • Journal of Pharmacopuncture
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    • v.26 no.1
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    • pp.27-37
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    • 2023
  • Objectives: Moroccan Arbutus unedo is an essential medicinal plant; however, little is known about the biological properties of its leaves mentioned in Moroccan traditional medicine. Methods: Various standard experiments were performed to evaluate the phytochemical, antidiabetic, antioxidant, antibacterial, and acute and sub-chronic toxicity characteristics of A. unedo leaves. Results: Phytochemical screening led to the identification of several phytochemical classes, including tannins, flavonoids, terpenoids, and anthraquinones, with high concentrations of polyphenols (31.83 ± 0.29 mg GAEs/g extract) and flavonoids (16.66 ± 1.47 mg REs/g extract). Further, the mineral analysis revealed high levels of calcium and potassium. A. unedo extract demonstrated significant antioxidant and anti-diabetic activities by inhibiting α-amylase (1.350 ± 0.32 g/mL) and α-glucosidase (0.099 ± 1.21 g/mL) compared to the reference drug Acarbose. Also, the methanolic extract of the plant exhibited significantly higher antibacterial activity than the aqueous extract. Precisely, three of the four examined bacterial strains exhibited substantial susceptibility to the methanolic extract . Minimum bactericidal concentration (MBC)/minimum inhibitory concentration (MIC) values indicated that A. unedo harbor abundant bactericidal compounds. For toxicological studies, mice were administered with A. unedo aqueous extract at single doses of 2,000 and 5,000 mg/kg. They did not exhibit significant abnormal behavior, toxic symptoms, or death during the 14-day acute toxicity test and the 90-day sub-chronic toxicity test periods. The general behavior, body weight, and hematological and biochemical status of the rats were assessed, revealing no toxicological symptoms or clinically significant changes in biological markers observed in the mice models, except hypoglycemia, after 90 days of daily dose administration. Conclusion: The study highlighted several biological advantages of A. unedo leaves without toxic effects in short-term application. Our findings suggest that conducting more comprehensive and extensive in vivo investigations is of utmost importance to identify molecules that can be formulated into pharmaceuticals in the future.

Development Web-based Arabic Assessments for Deaf and Hard-of-Hearing Students

  • Atwan, Jaffar;Wedyan, Mohammad;Abbas, Abdallah;Gazzawe, Foziah;Alturki, Ryan
    • International Journal of Computer Science & Network Security
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    • v.22 no.5
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    • pp.359-367
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    • 2022
  • Arabic skills are the tools by which children are prepared for the educational procedures on which their life depends. Deaf and hard of hearing students (DHH), must be able to grasp the same Arabic terms as hearing students and their different meanings in a context of different sentences less than what they are supposed to be due to their inability. However, problems arise in the same Arabic word and their different meanings in a context for (DHH) students since the way of comprehending such words does not meet the needs and circumstances of (DHH) students. Therefore, researchers introduce web-based method for Arabic words and their meanings in a context prototype that can overcome those problems. Methodology: The study sample consists of 30 (DHH) students at Al Amal City of Palestine, Gaza Region (GR). Those participants that agreed to take part in this study were recruited using a purposeful sampling method. Additionally, to examine the survey information descriptively, the Statistical Packages for social Sciences (SPSS) version 24.0 was used. A sign language teaching movie is utilized in the prototype to standardize the process and verify that Arabic vocabulary and their implications are comprehended. The Evolutionary Process Model of Prototype technique was utilized to create this system. Finding: The findings of this study show that the prototype built is workable and has the ability to help DHHS differentiate between phrases that have the same letters but distinct meanings. The findings of this study are expected to contribute to a better understanding and application of Development of Web-based Arabic Assessments for (DHH) Students in developing countries, which will help to increase the use of Development of Web-based Arabic for (HDD) students in those countries. The empirical models of Web-based Arabic for (DHH) students are established as a proof of concept for the proposed model. The results of this study are predicted to have a significant impact to the information system practitioners and to the body of knowledge.

Gamification in Educational Institutions: Concepts and Difficulties

  • Bakhit Al-Salami, Sami Ben Shamlan
    • International Journal of Computer Science & Network Security
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    • v.22 no.9
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    • pp.208-216
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    • 2022
  • This paper provides an account of gamification in education. Apart from its emergence, it clarifies how gamification differs from gaming and game-based learning. It also discusses the elements of gamification, its advantages and its principles. It also sketches the theoretical underpinning of the concept, the models, its various applications, and the obstacles to using it in the educational process.

An Account of Virtual and Augmented Reality in Educational Institutions

  • Al-Salami, Sami Ben Shamlan Bakhit
    • International Journal of Computer Science & Network Security
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    • v.22 no.9
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    • pp.137-142
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    • 2022
  • This paper argues for modern technologies in the educational process. It specifically outlines issues germane to virtual and augmented reality. It begins with an account on virtual reality and augmented reality, and touches on their characteristics, the advantages, obstacles and applications. It also discusses some relevant studies that emphasized the role of virtual and augmented reality in education, the difference between two terms. The paper ends with a note of vision on how to activate them in educational institutions.

An Efficient Routing Scheme Based on Node Density for Underwater Acoustic Sensors Networks

  • Rooh Ullah;Beenish Ayesha Akram;Amna Zafar;Atif Saeed;Sultan H. Almotiri;Mohammed A. Al Ghamdi
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.18 no.5
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    • pp.1390-1411
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    • 2024
  • Underwater Wireless Sensors Networks (UWSNs) are deployed in remotely monitored environment such as water level monitoring, ocean current identification, oil detection, habitat monitoring and numerous military applications. Providing scalable and efficient routing is very challenging in UWSNs due to the harsh underwater environment. The biggest difficulties are the nodes inherent movement due to water current, long delay in data transmission, low bandwidth of the acoustic signal, high error rate and energy scarcity in battery powered nodes. Many routing protocols have been proposed to solve the aforementioned problems. There are three broad categories of routing protocols namely depth based, energy based and vector-based routing. Vector Based Forwarding protocols perform routing through virtual pipeline by defining their radius which give proper direction to packets communication. We proposed a routing protocol termed as Path-Oriented Energy Scaled Expanded Vector Based Forwarding (PESEVBF). PESEVBF takes into account all parameters; holding time, the source nodes packets routing path and void holes creation on the second hop; PESEVBF not only considers the packet upward advancement but also focus on density of the forwarded nodes in terms of number of potential forwarding and suppressed nodes for path selection. Node selection in resultant holding time is based on minimum Path Factor (PF) value. Moreover, the suppressed node will be selected for packet forwarding to avoid the void holes occurrences on the second hop. Performance of PESEVBF is compared with other routing protocols using matrices such as energy consumption, packet delivery ratio, packets dropping ratio and duplicate packets creation indicating considerable performance improvement.