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ENHANCING RESOURCE UTILIZATION IN EDGE COMPUTING USING DEEP Q-NETWORK
(An-Najah National University, 2026-01-18) Jarrar, Yazan
This thesis focuses on designing and evaluating machine learning techniques to enhance the scheduling process in an edge computing environment, especially for IoT applications, with the goal of maximizing the number of tasks executed within a specified window limit. Maximizing task completion within deadlines increases throughput and service quality, while missed deadlines can degrade system performance and render results unusable.
This study investigates the two proposed algorithms, Simulated Annealing (SA) and Deep Q Network (DQN), to determine if they outperform the existing solutions for batch task scheduling in an edge computing environment. To validate the results, we used real world Augmented Reality (AR) and Internet of Vehicles data generated by the EdgeCloudSim simulator. The results clearly show that our proposed algorithms outperform others solutions, especially where the resources are strictly constrained.
The results show that our simulated annealing-based algorithm achieved up to a 71% reduction in task failure rate compared with the baseline algorithm when tested in static environments using real IoT and AR data. They also show that our Deep Q-Network based scheduler consistently achieved the lowest failure rates across dynamic scenarios, especially under higher constraints. Moreover, the Deep Q-Network model evaluated in a dynamic environment required substantially less overhead time, under one-third of the simulated annealing algorithm’s runtime, while both algorithms outperformed other baseline algorithms by up to 10% in task failure rate.
These findings support the thesis objective of maximizing the edge resource utilization while ensuring task batches complete within a specified window limit and highlight the efficiency of the Deep Q-Network based scheduling algorithm.
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THE EFFECTIVENESS OF LORAZEPAM IN PREVENTING RADIAL ARTERY SPASM IN PATIENTS HAVING RADIAL APPROACH CARDIAC CATHETERIZATION A DESCRIPTIVE STUDY
(An-Najah National University, 2026-02-17) kittaneh, Qadri
Background: One of the frequent complications in transradial cardiac catheterization is the spasm of the radial artery (RAS). This problem sometimes results in pain for the patient and makes the medical procedure difficult. Certain psychological factors, such as anxiety and pain, lead to activation of the sympathetic vascular responses, thereby raising the chance of RAS.
Aim: This study intends to investigate the link between administration of lorazepam and the incidence of radial artery spasm in patients who undergo transradial cardiac catheterization, while considering the levels of anxiety and pain as one of the factors.
Methodology: A descriptive observational study with a sample of 189 patients having tranradial cardiac catheterization was done in Nablus Specialty Hospital from February to August 2025. Depending on the standard clinical practice and the doctor's judgement, the participants were divided into two groups: the first group (n = 61) consisted of those who received oral lorazepam, and the second group (n = 128) of those who did not receive lorazepam. The level of anxiety was determined by the Hospital Anxiety and Depression Scale Anxiety subscale (HADS, A), and the pain intensity during the procedure was evaluated using the Visual Analog Scale (VAS). Samples associations have been tested by chi, square and the criterion for statistical significance was that p < 0.05.
Results: In the lorazepam group, 34.3% of the patients had RAS compared to 42.2% in the non, lorazepam group. In the group that did not have lorazepam, it was found that high levels of anxiety and pain were significantly (p < 0.05) associated with the occurrence of RAS while there is no such significance as observed from lorazepam group. Female gender and lower education level were found to have a significant effect on the higher incidence of RAS (p < 0.05) whereas age, body mass index, smoking status, and comorbidities did not show such an effect. Anxiety levels after the procedure went down in both groups and more patients achieved normal anxiety scores. Also, pain intensity during the procedure was lower among the patients who took lorazepam.
Conclusion: Taking lorazepam brought about lowered anxiety and pain levels, along with the reduced occurrence of radial artery spasm in the transradial catheterization. Causality cannot be determined owing to the design of the observational study.
Recommendations: To confirm the role of lorazepam in the prevention of RAS, future researchers should use randomized controlled trials. Besides, more studies should be done to investigate long, term vascular outcomes and to compare lorazepam with other anxiolytic agents.
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STUDYING THE STRUCTURAL, ELECTRONIC, MAGNETIC AND ELASTIC PROPERTIES OF THE QUATERNARY HEUSLER COMPOUND FENBZRSN
(An-Najah National University, 2026-01-11) Nassar, Ayman
The structural, electronic, magnetic and elastic properties of quaternary Heusler
compound FeNbZrSn were investigated using the computational method of Density
Functional Theory (DFT) integrated within the WIEN2k program. The full-potential
linearized augmented plane wave (FP-LAPW) method was utilized to solve KohnSham equations. Generalized Gradient Approximation (GGA) was utilized in
calculating the exchange-correlation energy. Three structural phases of FeNbZrSn were
considered. For each structural phase, nonmagnetic and ferromagnetic configurations
were studied. The results showed that FeNbZrSn is stable in all three phases and in both
magnetic states with phase γ in its ferromagnetic state being the most stable. Structural
properties which include lattice parameter (a), bulk modulus (B), pressure derivative of
bulk modulus (B') and ground state energy (E0) were investigated. Additionally, elastic
properties which include elastic constants (C11, C12 and C44) and elastic moduli (bulk
modulus B, Young’s modulus Y and shear modulus S, Poisson’s ratio ν, and anisotropic
factor A) were investigated to study the mechanical stability and characteristics of
FeNbZrSn. Despite phase γ being stable, studying its elastic properties showed that it’s
mechanically unstable. However, ferromagnetic phase β was mechanically stable and
thus was chosen as the ground state of FeNbZrSn. Electronic properties were
investigated and results showed a clear contrast between spin up direction which had
metallic behavior and spin down direction which had semiconducting behavior with an
energy gap equal to 0.043187 Ry. Band structure and density of states plots confirmed
this half-metallic nature of FeNbZrSn. Modified Becke-Johnson (mBJ) was used to
improve the energy band gap because GGA tends to underestimate it. However, due to
limitations in mBJ, the value of the band gap decreased to 0.031672 Ry. Magnetic
properties which include total and partial magnetic moments for each atom and for the
interstitial region were studied using GGA. This gave a total magnetic moment of 2.94523 μΒ. mBJ was used to calculate magnetic moments in which the total was
2.98898 μΒ. The results were in better agreement with Slater-Pauling rule which
predicted that the total magnetic moment equals 3 μΒ. Results confirmed the expected
ferromagnetic nature of FeNbZrSn.
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ASSESSMENT OF FOOD SAFETY KNOWLEDGE, ATTITUDES AND PRACTICES AMONG FOOD SERVICES STAFF IN PALESTINIAN HOSPITALS
(An-Najah National University, 2026-01-04) Abu Rass, Basel
Foodborne illnesses can develop from inappropriate food handling and preparation, especially in vulnerable persons. Therefore, hospital diet safety is a serious public health issue. There is a shortage of information in Palestine regarding hospital food handlers' knowledge and practices regarding food safety. A cross-sectional evaluation of the KAP concerning the food safety of food service workers in Palestinian hospitals was made. By validated questionnaire, personal interviews with 77 participants were conducted. In six governorates - Nablus, Ramallah, Jenin, Tulkarem, Hebron, and Qalqilia the participants were gathered from both public and private hospitals. ANOVA and descriptive statistics were used to look into relationships between KAP scores and sociodemographic or occupational traits. The safe food storage procedures, suitable meat and poultry preparation, and cross-contamination prevention techniques were discovered with highly adherence. Certain behaviors, such as using a thermometer to check the temperature, examining the integrity of the package, and consistently separating raw and prepared food during meal preparation, demonstrated low compliance.
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الأبعاد الشّعورية في الشعر النسوي من العصر الجاهلي حتى نهاية العصر العباسي/ نماذج شعرية مختارة
(جامعة النجاح الوطنية, 2026-02-04) إبراهيم أحمد إبراهيم خساتي
يُعدّ المنهج النّفسي من المناهج النّقديّة الحديثة، التي استهدفت النّصوص الأدبية بعّامة؛ لذا تحاول هذه الدّراسة إظهار بعض الأبعاد الشّعوريّة في نماذج شعرية نسويّة من العصر الجاهلي حتى نهاية العصر العباسي، اعتماداً على القراءة النّفسيّة لتلك النّماذج في تلكم العصور، في ظلّ العوامل الاجتماعيّة والثقافيّة والسّياسيّة، التي سادت فيها.
وتتناول الأبعادَ الشعوريّة في بعضِ أغراضِ الشّعر النِّسوي، إذ تبيّن النماذج المختارة في شعر الرّثاء الألمَ النّفسي الذي يصيب المرأة إنْ هي فقدت رجلاً عزيزاً، وتصوّر نماذجُ أخرى عن مشاعر الشّوق والحنين تجاه المحبوب، والزّوج والمكان. وتلقي بعضُ نماذجِ الهجاء الضّوءَ على استياء المرأة من أفعالِ زوجها وولدها، وتستعرضُ حاجتها إلى الأمن في طيّاتِ الشعر الذي مُدح به الخليفة.
وتظهر امتلاك بعض الشاعرات جرأة كافيّة، لتَتَمرّد على عادات المجتمع ومنظومته الثّقافيّة، وترسم علاقة المرأة بالمجتمع النِّسوي. وإزاء كلّ ذلك حاولت أن تحمي نفسها، فلجأت إلى الحيل الدّفاعيّة النّفسية: الكبت والتعويض والاسقاط والتكوين العكسي والتّمرد على المجتمع وغيرها.
الكلمات المفتاحيّة: رثاء، شوق وحنين، الصدمة النّفسيّة، الكبت، الإسقاط، الأنا، الهو.