Sirte University Scientific Journal
type: channel
description: SUSJ is a scientific refereed journal issued on behalf of Sirte University in a number of issues throughout the year interested in publishing research and documented studies in the field of applied sciences for university faculty members and other universities from inside and outside Libya. The views expressed in the publication are the individual opinion of the author(s) and they neither represents nor reflect the opinion of the editor and editorial board or Sirte University. https://doi.org/10.37375/1575
publisher: Sirte University
language: en
publication name: Sirte University Scientific Journal
issn: 2518-5454
items: Prevalence Of Trichomonas Vaginalis Infection Among Women Presenting With Vaginitis Symptoms At Al-Massara Clinic , Houn City, Libya
items: The Efficacy of Adding Midazolam As An Adjuvant To Lidocaine Bupivacaine Mixture In Ultrasound Guided Supraclavicular Block
items: From Pulp Preservation to Root Canal Therapy: Exploring Decision-Making in Pulpal Disease Management
items: Knowledge, Attitudes, and Self-Efficacy Toward Cardiopulmonary Resuscitation Among Intensive Care Unit Healthcare Professionals at a secondary healthcare facility (Ibn Sina teaching hospital – Sirte)
items: Evaluation of the Effect of Chemical Acids on Breaking Seed Dormancy of Retama raetam
items: Bacterial Uropathogens in Urinary Tract Infection and Antibiotic Susceptibility Patterns among Patients Attending at Tobruk Medical Center, Tobruk, Libya
items: Evaluation of the Antifungal Activity of Aqueous Plant Extracts Against Fusarium oxysporum f. sp. lycopersici
items: A Geomorphological and Environmental Evaluation of Coastal Cliffs Collapse in the Bardai Region, North-eastern Libya
items: AI-Powered Waste Management in Sirte Municipality
items: High Speed Sintering (HSS) Modelling and prediction via Radial Basis Function Neural Network (RBFNN)
items: Reducing Oxidation through Multi-Technique Synthesis: Impact on Phase Purity of Fe-Sb Alloys via XRD and Microstructural Study
items: Remarkable Recovery of Low-Risk Myelodysplastic Syndrome, A case of complete Hematologic Remission .
items: Evaluation of the activity levels and the radiological hazards associated with the imported chemical fertilizers used in Libya
items: Enhancing the Efficiency of Hydrogen-Fueled Internal Combustion Engines through Direct Injection Strategies and Thermal Management
items: Effect of ethanolic extract of Ashwagandha and its isolated linoleic acid on the oxidative and reductive biomarkers in rats with induced neurodegeneration
items: Performance Assessment of Cathodic Protection Systems for Buried Pipelines under Desert Conditions in Libya
items: Evaluation of the Quality of Bottled Water Available in Benghazi, Libya
items: Evaluation of the effectiveness of treating broad bean seeds with fungicides on germination and plant growth
items: The Prevalence and Association of Micronutrient Deficiencies with Hair Loss in Children and Adolescents: A Cross-Sectional Study
items: Carrot Juice as a Natural Adjuvant Therapy: Amelioration of Cisplatin-Induced Testicular and Epididymal Histoarchitectural Disruption
items: Unique Case of Guillain-Barré Syndrome Associated with Pneumococcus in a Young Female Patient Attending Sirt Teaching Hospital, Libya
items: A study of Mycobacterium tuberculosis among respiratory patients coming to the center for infections and Endemic Diseases in Sirte city, Libya between 2018 and 2023
items: Outcomes of 52 cases of surgical mesh repair for paraumbilical hernias
items: Prevention, early detection and treatment of breast cancer in Benghazi-Libya: Patients’ points of view: A qualitative study
items: Time effects on deflection of reinforced concrete beams with large web opening
items: A Comparison between steam injection and combined cycle power plant using exergy analysis
items: ESP PRODUCTION OPTIMIZATION BY USING PIPESIM
items: Antimutagenic effects of the ginger extract of reducing chromosomal mutation induced by cyclophosphamide in male rats
items: The Impact of Gamma Radiation on Aluminum Alloy Thermal Conductivity Alumina Composite 6063
items: Prevalence, Risk Factors, and Microbial Profile of Urinary Tract Infections in Pediatric Population

Prevalence Of Trichomonas Vaginalis Infection Among Women Presenting With Vaginitis Symptoms At Al-Massara Clinic , Houn City, Libya
type: item
description: Background: Trichomonas vaginalis is a protozoan parasite that causes trichomoniasis, one of the most common sexually transmitted infections (STIs) worldwide. This infection primarily affects women, leading to symptoms such as vaginitis, characterized by vaginal discharge, itching, and discomfort. Despite its high prevalence, many cases remain asymptomatic or undiagnosed, contributing to its continued spread. In Libya, the epidemiological data on T. vaginalis infection is limited, particularly in rural and suburban areas. Aim of study: This study aims to investigate the prevalence of T. vaginalis infection in women presenting with vaginitis symptoms at Al-Massara Clinic in Houn city, Libya, providing valuable insights into the local burden of this infection. Materials and methods: This cross-sectional study assessed the prevalence of Trichomonas vaginalis infection among 300 women attending the obstetrics and Gynecology clinic at Al-Massara in Hun city, Libya, during 2022year. Vaginal secretion samples were collected and examined using wet mount microscopy with saline solution for parasite motility and Giemsa-stained smears for detailed structural identification. Results: The present results revealed significant associations between infection rates and demographic, clinical, and lifestyle factors. The highest prevalence was observed among women aged 15–24 years (94.23%), with rates decreasing in older groups. Married women (62.01%) and rural residents (54.47%) exhibited higher infection rates compared to unmarried women (15.20%) and urban residents (22.28%). Infection was inversely related to educational level, with the highest prevalence in illiterate women (64.28%) and the lowest in those with higher education (18.42%). Vaginal discharge characteristics strongly correlated with infection, with 100% positivity in women with white or yellow discharge. These findings highlight the need for targeted public health strategies, including education, routine screening, and…
subject: Articles
  topic: section
subject: Trichomonas vaginalis
  topic: keywords
subject: parasitic infection
  topic: keywords
subject: vaginitis symptoms
  topic: keywords
subject: Sexually transmitted infections (STIs)
  topic: keywords
subject: Houn city
  topic: keywords
creator: Hana Abd Alsalam zaed
creator: Ali Mohamed Elgobbi
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 104
ending page: 109
doi: 10.37375/susj.v15i2.3733

The Efficacy of Adding Midazolam As An Adjuvant To Lidocaine Bupivacaine Mixture In Ultrasound Guided Supraclavicular Block
type: item
description: Background: Brachial plexus block is useful technique that serves as a valuable alternative to general anesthesia for procedures involving the upper limbs. It provides optimal muscle relaxation, stable intra-operative hemodynamics and effective post-operative pain control. The purpose of this work was to assess the effectiveness of adding midazolam to local anesthetic mixture (lidocaine /bupivacaine) for analgesia and anesthesia in supraclavicular block with ultrasound-guidance during upper limb surgeries. Patients and methods: 40 patients from those scheduled to unilateral upper limb surgery below the level of midarm.at our hospital. The patients were allocated into two equal groups. Group ''M'' (lidocaine bupivacaine) mixture + Midazolam, and group ''C'' (lidocaine bupivacaine). Results Our results showed that there was no difference between the two groups regarding sensory onset. In contrast, patients in group M showed an earlier onset of motor block. Furthermore, both sensory and motor block durations were longer in Midazolam than control group. There was no difference between the 2 groups regarding respiratory rate, ECG, blood pressure, pulse rate and oxygen saturation. Conclusion: From of the findings of this study, we conclude that adding midazolam to mixture of bupivacaine 0.25 % and Lidocaine 1 % for supraclavicular brachial plexus block results in rapid onset of sensory block and prolongs both sensory and motor block duration.
subject: Articles
  topic: section
subject: Midazolam
  topic: keywords
subject: Bupivacaine
  topic: keywords
subject: Supraclavicular Block
  topic: keywords
subject: Ultrasound
  topic: keywords
creator: Jomaa faraj abdallah alrjael
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 98
ending page: 103
doi: 10.37375/susj.v15i2.3732

From Pulp Preservation to Root Canal Therapy: Exploring Decision-Making in Pulpal Disease Management
type: item
description: Background: Timely and accurate diagnosis of pulpal disease is essential for determining appropriate treatment ranging from conservative pulp preservation techniques to root canal therapy (RCT). Understanding dentists’ clinical choices and their diagnostic rationale helps improve patient outcomes and guides evidence-based practice. Objective: This study aimed to evaluate the diagnostic and therapeutic decision-making approaches used by dentists in managing pulpal disease, with a focus on the preference for pulp-preserving techniques versus root canal treatment. Methods: A structured, validated questionnaire was distributed to licensed dental practitioners. A total of 329 responses were collected. The questionnaire assessed diagnostic methods, treatment preferences, use of advanced tools, and clinician confidence levels. Data were analyzed using descriptive statistics and percentages. Results: The most commonly used diagnostic tools were thermal testing (76.3%), evaluation of spontaneous pain (68.1%), and radiographic imaging (61.4%). Conservative treatments were preferred: 34.3% selected indirect pulp capping and 24.3% opted for partial pulpotomy. Root canal therapy was chosen by 14.9% of respondents. While 51.1% expressed high confidence in their diagnostic decisions, 13% reported uncertainty. Conclusion: The findings highlight a growing shift among dentists toward conservative, biologically oriented management of pulpal disease, supported by modern diagnostic techniques and evolving clinical guidelines. Despite this positive trend, variability in confidence and adoption of diagnostic tools suggests a need for continued professional development and standardized protocols.
subject: Articles
  topic: section
subject: Pulpal disease
  topic: keywords
subject: vital pulp therapy
  topic: keywords
subject: root canal treatment
  topic: keywords
subject: dental diagnosis
  topic: keywords
subject: decision-making
  topic: keywords
subject: conservative dentistry
  topic: keywords
subject: pulp preservation
  topic: keywords
creator: Karima Alfitory Ahmed
creator: Abeer Faraj Mesbah
creator: Siham Mohamed Omar
creator: Nourelhouda Misurati
creator: Noora Berhaim
creator: Rash Ibrahim
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 91
ending page: 97
doi: 10.37375/susj.v15i2.3730

Knowledge, Attitudes, and Self-Efficacy Toward Cardiopulmonary Resuscitation Among Intensive Care Unit Healthcare Professionals at a secondary healthcare facility (Ibn Sina teaching hospital – Sirte)
type: item
description: Background: The effectiveness of cardiopulmonary resuscitation (CPR) is critically dependent on the capacity and preparedness of health professionals. The aim of this study was to evaluate the knowledge and attitudes of CPR among health professionals in the intensive care unit (ICU) at Ibn Sina Hospital in Sirte City, Libya. Methods: A cross -sectional study was conducted among 27 ICU health professionals, including doctors, anesthesia and intensive care technicians, nurses and other specialists. A structured questionnaire was used to collect data on demographics, CPR training and experience, attitudes to resuscitation and theoretical knowledge, which was assessed through a 15-point test. Results: The study included 27 participants (59.3% male, 40.7% female), including 7 doctors (25.9%), 14 anesthesia and intensive care technicians (51.9%), 3 nurses (11.1%) and 3 other professionals (11.1%). Most (88.8%) had received formal CPR training, and 63.0% had performed CPR before. The attitudes were overwhelmingly positive, with 100% of the participants who agreed that CPR knowledge is an essential part of their work. However, a significant knowledge gap was identified; Only 18.5% of participants scored more than 85% in the theoretical knowledge test, while 33.3% scored less than 65%. While 81.5% believed that their training was sufficient, only 55.5% were confident in their ability to save lives by using their CPR skills. Conclusion:. Despite overwhelming positive attitudes towards the importance of CPR, there are significant failings in theoretical knowledge among health services in ICU at the place of the study. These findings highlight the urgent need for arranged, routine and practical CPR training programs to bridge the lacuna between the approach and the ability, thus improving patient results in cardiac arrests
subject: Articles
  topic: section
subject: CARDIAC ARREST
  topic: keywords
subject: RESUSCITATION
  topic: keywords
subject: CPR
  topic: keywords
subject: EVALUATION
  topic: keywords
subject: ICU
  topic: keywords
subject: LIBYA
  topic: keywords
creator: Bahari Abu Ihrara
creator: Ali Ismaeil
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 86
ending page: 90
doi: 10.37375/susj.v15i2.3729

Evaluation of the Effect of Chemical Acids on Breaking Seed Dormancy of Retama raetam
type: item
description: This study investigated the effectiveness of concentrated mineral acids—sulphuric (H₂SO₄), hydrochloric (HCl), and nitric (HNO₃)—in breaking the physical seed dormancy of Retama raetam (Forssk.) Webb, a key leguminous shrub in arid and semi-arid ecosystems of North Africa. Mature seeds were treated with each acid for 6, 12, 24, and 48 hours under controlled laboratory conditions using a completely randomised design. Germination percentage, mean germination rate, and germination speed index were measured to assess treatment efficiency. Results revealed significant differences among treatments (p ≤ 0.001). Sulphuric acid proved most effective, achieving up to 95% germination when exposure lasted 12–24 hours, owing to its capacity to erode lignified and suberised seed coat layers without harming the embryo. Hydrochloric acid showed moderate efficacy at shorter durations (6–12 h), primarily softening the outer testa. In contrast, nitric acid caused oxidative injury and poor germination (<20%) due to its strong oxidising effect on embryonic tissues. The findings confirm that seed coat impermeability is the primary cause of dormancy in R. raetam and can be overcome effectively by controlled sulphuric acid scarification. The study provides a reproducible and low-cost germination protocol applicable to native desert legumes. Ecologically, enhancing R. raetam propagation supports sand dune stabilisation, rangeland rehabilitation, and desertification control in Libya and similar arid environments. This research contributes to the optimisation of propagation techniques for drought-adapted flora and underscores the ecological value of chemical scarification in restoration programmes.
subject: Articles
  topic: section
subject: Retama raetam
  topic: keywords
subject: seed dormancy
  topic: keywords
subject: acid scarification
  topic: keywords
subject: sulphuric acid
  topic: keywords
subject: germination enhancement
  topic: keywords
subject: desert restoration
  topic: keywords
creator: Najia, O. Almajdoub
creator: Ysera, M. Sakah
creator: Al-Sadek, M. Ghazala
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 80
ending page: 85
doi: 10.37375/susj.v15i2.3728

Bacterial Uropathogens in Urinary Tract Infection and Antibiotic Susceptibility Patterns among Patients Attending at Tobruk Medical Center, Tobruk, Libya
type: item
description: Urinary tract infections (UTIs) remain one of the most widespread infectious diseases globally and represent a major cause of morbidity across all age groups. This study aimed to identify the bacterial pathogens responsible for UTIs and to evaluate their antibiotic susceptibility profiles. Midstream urine samples were collected from patients attending Tobruk Medical Center, Libya, between August and October 2023, and processed according to standard microbiological procedures. Antimicrobial susceptibility was determined using the Kirby–Bauer disc diffusion technique following Clinical and Laboratory Standards Institute (CLSI) guidelines. Among 130 urine specimens analyzed, 78 (60%) yielded significant bacterial growth. Females accounted for the majority of positive cultures (55; 42%), compared to males (23; 17.9%). Escherichia coli and Klebsiella pneumoniae were the predominant uropathogens. Both organisms exhibited high sensitivity to carbapenems (Imipenem and Meropenem), while showing considerable resistance to Cefotaxime and Trimethoprim–Sulfamethoxazole. These findings highlight the need for ongoing antimicrobial surveillance and rational antibiotic prescribing to curb rising resistance rates.
subject: Articles
  topic: section
subject: Urinary Tract Infection
  topic: keywords
subject: Uropathogens
  topic: keywords
subject: Tobruk Medical Center
  topic: keywords
subject: E. coli
  topic: keywords
subject: Antibiotic Resistance
  topic: keywords
creator: Eisa S Omar
creator: Fares Elkarimi
creator: Omar M Farag
creator: Nehal K khalil
creator: Farah R salim
creator: Fawzia M Sasi
creator: Mosa A Ali
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 74
ending page: 79
doi: 10.37375/susj.v15i2.3727

Evaluation of the Antifungal Activity of Aqueous Plant Extracts Against Fusarium oxysporum f. sp. lycopersici
type: item
description: This study examined the antifungal activity of cold aqueous extracts from ten locally available plant species in Libya against Fusarium oxysporum f. sp. lycopersici, the causal agent of tomato wilt disease. The pathogen was isolated from infected tomato plants collected in the Ain Zara region and identified through cultural and microscopic characteristics, with confirmation using Komada selective medium. Plant materials were extracted by cold maceration, and the resulting solutions were tested using the poisoned food technique at concentrations of 20, 40, 60, 80, and 100%. Clear differences were recorded among the plant extracts in their ability to inhibit fungal growth. Clove extract was the most effective, achieving complete inhibition at concentrations of 40% and above. Garlic, thyme, and pomegranate peel also showed strong antifungal activity, with garlic producing full inhibition at 80–100% and thyme at concentrations of 60% and higher. In contrast, extracts of wormwood (Artemisia herba-alba) and oleander (Nerium oleander) caused minimal inhibition even at maximum concentration. Microscopic observations revealed that the most active extracts significantly reduced the formation of macroconidia and microconidia after 14 days, while chlamydospores remained less affected. Preliminary phytochemical screening indicated that the highly active extracts contained phenolics, flavonoids, terpenoids, tannins, and alkaloids, compounds known to disrupt fungal structures and interfere with essential metabolic processes. These findings demonstrate that aqueous plant extracts—particularly clove, garlic, thyme, and pomegranate—offer promising, environmentally friendly alternatives to synthetic fungicides. Further greenhouse and field studies are recommended to evaluate their applicability within sustainable disease management programs for tomato production in Libya.
subject: Articles
  topic: section
subject: Tomato
  topic: keywords
subject: Fusarium oxysporum
  topic: keywords
subject: plant extracts
  topic: keywords
subject: phytochemicals
  topic: keywords
subject: Libya
  topic: keywords
creator: Muna, N. Ekrim
creator: Hala, A. Abouharrous
creator: Al-Sadek, M. Ghazala
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 69
ending page: 73
doi: 10.37375/susj.v15i2.3726

A Geomorphological and Environmental Evaluation of Coastal Cliffs Collapse in the Bardai Region, North-eastern Libya
type: item
description: Due to its carbonate-dominated lithology and exposure to tectonic and marine forces, the Bardai coastal region in eastern Libya is extremely susceptible to cliff collapse. The Bardai cliffs' instability has increased due to micro-fracturing caused by recent seismic activity in the eastern Mediterranean, including moderate to powerful earthquakes in Greece and Turkey. Active retreat, undercutting, and massive rockfalls that endanger human safety and coastal ecosystems were found during field observations Similarly, the region's geological formations, such as Al-Jaghoub, Al-Faydiya, and Al-Abraq, cause the rocks to fracture and fragment due to the pressure of the Al-Jaghoub formation layers on other delicate formations. By creating shockwaves that travel through pre-fractured strata, illicit fishing methods involving underwater explosives beneath rocky cliffs have accelerated structural weakening in addition to natural forces. In order to reduce future risks in the Bardai area, it is imperative to assess coastal hazards and implement sustainable management strategies in light of the combined natural and human pressures.
subject: Articles
  topic: section
subject: Coastal erosion
  topic: keywords
subject: cliff collapse
  topic: keywords
subject: Bardai
  topic: keywords
subject: Eastern Libya
  topic: keywords
subject: geomorphology
  topic: keywords
subject: marine processes
  topic: keywords
subject: rock weathering
  topic: keywords
creator: Mohamed Masoud
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 58
ending page: 64
doi: 10.37375/susj.v15i2.3724

AI-Powered Waste Management in Sirte Municipality
type: item
description: Waste management is one of the most prominent environmental challenges facing contemporary societies, with increasing waste quantities due to population growth and urban expansion. This study aims to explore the role of Artificial Intelligence (AI) in improving waste management within Sirte Municipality, by following a Descriptive Analytical and Case Study Approach. The researchers developed a working AI-based application model and presented it as a case study to analyze its theoretical feasibility and expected impact on waste management efficiency in the local context. The study results showed that integrating artificial intelligence into waste management systems represents a promising step towards achieving environmental sustainability, by improving sorting processes, reducing waste, and increasing recycling efficiency. The study also recommended the necessity of adopting this applied model by Sirte Municipality and the concerned service companies, and utilizing AI technologies to enhance productivity and reduce waste, contributing to the achievement of sustainable development goals.
subject: Articles
  topic: section
subject: Sirte Municipality
  topic: keywords
subject: Artificial Intelligence
  topic: keywords
subject: Waste, Recycling
  topic: keywords
subject: Case Study
  topic: keywords
subject: Smart Waste Management
  topic: keywords
creator: Ali EMRAN AlZARQA
creator: Bassma Auhida Ali Abdulsamad
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 50
ending page: 57
doi: 10.37375/susj.v15i2.3723

High Speed Sintering (HSS) Modelling and prediction via Radial Basis Function Neural Network (RBFNN)
type: item
description: An additive manufacturing technique called High Speed Sintering (HSS) has enormous potential for producing intricate, superior polymer parts on a large scale. HSS process is modelled in this paper using a novel Radial Basis Function neural network (RBFNN) technique. The data gathered from the HSS process was analysed to determine the healthy/unhealthy data that could achieve a good/bad build. A powerful technique is developed for early fault detection (FD) and, consequently, to predict the quality of the parts produced using HSS. The RBFNN model was validated and tested to assess the robustness of the approach, and the simulation outcomes demonstrated that the faults could be clearly identified, and the quality of the produced parts possibly will be predicted.
subject: Articles
  topic: section
subject: High speed sintering (HSS)
  topic: keywords
subject: Radial Basis Function neural network (RBFNN)
  topic: keywords
subject: Fault detection (FD)
  topic: keywords
creator: Adnan Hamad
creator: George Panoutsos
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 42
ending page: 49
doi: 10.37375/susj.v15i2.3722

Reducing Oxidation through Multi-Technique Synthesis: Impact on Phase Purity of Fe-Sb Alloys via XRD and Microstructural Study
type: item
description: In this study, Fe-Sb alloy samples were synthesized using various processing techniques with the aim of reducing oxidation and enhancing phase purity. While samples S1 and S2 were prepared in a tube furnace under nitrogen atmosphere, sample S3 was synthesized using a vacuum-assisted current-heating method. X-ray diffraction (XRD) analysis revealed a multiphase composition, with FeSb₂ emerging as the dominant phase in the S3 sample. Secondary phases such as elemental Sb, metallic Fe, and a trace amount of Sb2O3 were also identified. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) confirmed the correlation between the synthesis environment, oxidation degree, and microstructural uniformity. The vacuum-based synthesis of sample S3 effectively minimized oxygen incorporation, resulting in improved phase formation and structural integrity. These findings suggest that controlled synthesis under vacuum conditions is essential for optimizing Fe-Sb alloy systems, particularly when targeting intermetallic phases like FeSb₂ with minimal oxide contamination.
subject: Articles
  topic: section
subject: Fe-Sb alloys
  topic: keywords
subject: Phase purity
  topic: keywords
subject: Oxidation control
  topic: keywords
subject: X-ray diffraction
  topic: keywords
subject: Microstructural analysis
  topic: keywords
creator: Tarek Mohamed Fayez
creator: Wesam Ahmed Mohamed Zeyara
creator: Ibrahim A. Saleh
creator: Abdelkhader Ali Abobaker
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 37
ending page: 41
doi: 10.37375/susj.v15i2.3721

Remarkable Recovery of Low-Risk Myelodysplastic Syndrome, A case of complete Hematologic Remission .
type: item
description: Background: Pediatric myelodysplastic syndrome is rare and typically presents with unexplained cytopenias. We report a case of a previously healthy 14-year-old male presenting with severe pancytopenia diagnosed as low-risk MDS ,who showed a marked hematologic response to immunosuppressive therapy with cyclosporine and eltrombopag. Case Presentation: The patient presented with dizziness and severe pancytopenia (anemia , Leukopenia, thrombocytopenia ). Initial workup excluded nutritional deficiencies, viral etiologies, and hemolysis. Bone marrow biopsy revealed hypocellular marrow with rare megakaryocytes and blasts at 2%, consistent with Myelodysplastic sydrome. Management included Intensive care unite admission, transfusions, corticosteroids, cyclosporine, and eltrombopag. Substantial hematologic improvement was seen within three months. Conclusion: Immunosuppressive therapy resulted in full hematologic recovery and normalization of bone marrow function. This case underscores the importance of early recognition and prompt treatment of pediatric myelodysplastic syndrome .
subject: Articles
  topic: section
subject: myelodysplastic syndrome
  topic: keywords
subject: pancytopenia
  topic: keywords
subject: Immunosuppressive therapy
  topic: keywords
subject: , cyclosporine and eltrombopag
  topic: keywords
creator: Rudhuway Abdulqadir Mtawil
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 33
ending page: 36
doi: 10.37375/susj.v15i2.3720

Evaluation of the activity levels and the radiological hazards associated with the imported chemical fertilizers used in Libya
type: item
description: This study provides a preliminary assessment of the levels of natural radioactivity in ten types of local chemical fertilizers collected from markets in Libya. The primary objective was to determine the activity concentrations of the naturally occurring radionuclides 226Ra, 232Th and 40Kl and subsequently evaluate the associated radiological hazard indices. ​Measurements were performed using gamma spectrometry with NaI (Tl) 3″ × 3″ detector. The determined activity concentration ranges were: 226Ra, 232Th and 40Klwere 65.27 ± 3.9–97.46 ± 5.09, 70.26 ± 4–86.3 ± 2.36, and 76.77 ± 7.43–131.79 ± 8.8 Bq kg−1, respectively Furthermore, the calculated radiological parameters showed the following ranges: Radium Equivalent Activity from 174.57 to 228.75 Bq kg−1 Cancer Risk Factor from 0.09 to 0.12 and Absorbed Dose Rate from 77.05 to 101.45 nGy h-1 The obtained concentration and hazard values were systematically compared with established international permissible levels by [UNSEAR 2016]. This research offers crucial baseline data for the radiation safety assessment of chemical fertilizers in Libya .
subject: Articles
  topic: section
subject: activity concentration
  topic: keywords
subject: sodiumiodide
  topic: keywords
subject: RadiumEquivalent
  topic: keywords
subject: cancerrisk
  topic: keywords
creator: Asma Mohammed A. AL-abrdi
creator: Areej Hazawi
creator: Mbrouka A.Abd-Alhamid
creator: Rasha Yousif M. Elfallah
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 26
ending page: 32
doi: 10.37375/susj.v15i2.3719

Enhancing the Efficiency of Hydrogen-Fueled Internal Combustion Engines through Direct Injection Strategies and Thermal Management
type: item
description: Hydrogen-fueled internal combustion engines (H2-ICEs) present a promising alternative to conventional fossil-fueled engines due to their potential for zero carbon emissions and high efficiency. However, several challenges remain in optimizing their performance, including low volumetric efficiency, pre-ignition tendencies, and thermal losses. This study focuses on improving the efficiency and performance of H2-ICEs through advanced direct injection (DI) strategies and effective thermal management techniques. Direct injection of hydrogen allows for better control of the combustion process, reducing the risk of knock and backfire while enhancing power output by improving air-fuel mixing and volumetric efficiency. The timing and pressure of injection play a critical role in achieving optimal combustion. Additionally, managing heat within the engine through techniques such as exhaust gas recirculation (EGR), advanced cooling systems, and thermal barrier coatings helps maintain optimal operating temperatures, reduce heat losses, and improve overall efficiency. By integrating advanced DI systems with thermal management approaches, this research aims to develop a comprehensive strategy for maximizing the performance of hydrogen internal combustion engines, making them a more viable and sustainable solution for future transportation and energy applications.
subject: Articles
  topic: section
subject: Hydrogen fueled
  topic: keywords
subject: Engines
  topic: keywords
subject: Efficiency
  topic: keywords
subject: Direct Injection
  topic: keywords
creator: Ibrahim Masaud Ahmed
creator: Abdul salam Salem Abdullah
creator: Mohamed Elsaudik Masaud
creator: Nuralldeen Attiallah Alfazea
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 18
ending page: 25
doi: 10.37375/susj.v15i2.3718

Effect of ethanolic extract of Ashwagandha and its isolated linoleic acid on the oxidative and reductive biomarkers in rats with induced neurodegeneration
type: item
description: The purpose of this study is to investigate the effects of an alcoholic extract of Ashwagandha (Withania somnifera) and the fatty acid isolated from it on oxidative and reductive biomarkers in rats whose neurodegenerative disorders were induced by trichloroethylene (TCE). Laboratory animals were divided into eight groups. The first group (negative control) received only distilled water. The second one (positive control) had the disease induced by TCE. The third one was treated with linoleic acid, the fourth with palmitic acid, and the fifth with the alcoholic extract. The sixth group received linoleic acid along with the alcoholic extract. The seventh one received palmitic acid along with the alcoholic extract, and the eighth one received linoleic acid first, followed by the induced disease. The results showed that the TCE-treated rats had a significant decrease in GSH, GPx, and UA and a significant increase in MDA compared to the negative controls. Rats treated with linoleic acid, alcoholic extract, a combination of both, and the pre-treatment linoleic acid group showed noticeable increases in GSH, GPx, and UA and noticeable decreases in MDA compared to the positive control group. Rats treated with palmitic acid showed significant increases in GPx and significant decreases in GSH, MDA, and UA compared to the positive control group. Rats injected with palmitic acid and the extract showed noticeable increases in GSH and GPx and noticeable decreases in MDA and UA compared to the positive control group. Accordingly, this study tried to investigate the neuroprotective effect of Ashwagandha extract and the linoleic acid isolated from it against TCE-induced neurodegeneration in rats.
subject: Articles
  topic: section
subject: Ashwagandha
  topic: keywords
subject: Neurodegeneration
  topic: keywords
subject: rats
  topic: keywords
subject: oxidative
  topic: keywords
subject: reductive
  topic: keywords
subject: linoleic acid
  topic: keywords
subject: trichloroethylene
  topic: keywords
creator: Wasan Z. Ahmad
creator: Luma A. Baker
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 9
ending page: 17
doi: 10.37375/susj.v15i2.3717

Performance Assessment of Cathodic Protection Systems for Buried Pipelines under Desert Conditions in Libya
type: item
description: Buried pipelines play a crucial role in transporting oil, gas, and water but are often exposed to external corrosion, particularly in dry, high-resistivity desert soils. Cathodic Protection (CP) applied either by sacrificial anodes (GACP) or by impressed current systems (ICCP) is widely adopted to control corrosion, yet its efficiency largely depends on coating condition, soil characteristics, and the uniformity of current flow. This research investigates the performance of an ICCP system protecting a 10 km underground steel pipeline located in Sabha, southwestern Libya. Field evaluations were conducted during the driest season using Close-Interval Potential Survey (CIPS), Direct Current Voltage Gradient (DCVG) measurements, and anode current readings. Results indicated several under-protected sections with potentials between −0.76 and −0.82 V (Cu/CuSO₄, instant-OFF), corresponding to coating deterioration and restricted current spread. Statistical assessment revealed that soil resistivity, coating quality, and current imbalance jointly influence the level of protection achieved. System optimization through rectifier recalibration, installation of additional sacrificial anodes, and combined CIPS–DCVG inspections improved the overall protection. The outcomes demonstrate that the conventional −0.85 V protection limit may not fully apply under arid conditions and suggest the adoption of adaptive hybrid CP systems supported by real-time monitoring to ensure long-term pipeline integrity.
subject: Articles
  topic: section
subject: Cathodic Protection
  topic: keywords
subject: ICCP
  topic: keywords
subject: GACP
  topic: keywords
subject: Pipeline Corrosion
  topic: keywords
subject: CIPS
  topic: keywords
subject: DCVG
  topic: keywords
subject: Desert Soils
  topic: keywords
creator: Masood A G Ali
creator: Ihssin Abdalsamed
creator: Ali Alguwari
rights: Copyright (c) 2025 Sirte University Scientific Journal
date: 2025-12-24
publication date: 2025-12-24
starting page: 1
ending page: 8
doi: 10.37375/susj.v15i2.3716

Evaluation of the Quality of Bottled Water Available in Benghazi, Libya
type: item
description: Water quality indices serve as effective tool for evaluating overall water quality. They are beneficial for decision- makers, stakeholders, and individuals lacking extensive expertise in the numerous parameters that define water quality. This study evaluates the quality of drinking water by employing the weighted arithmetic Water Quality Index (WQI) method, utilizing various physicochemical parameters from five different brands of bottled water available in Benghazi City, Libya. The WQI was calculated for the 14 physicochemical parameters (EC, TDS, pH, total hardness, fluoride, chloride, nitrate, Bicarbonate HCO3-, sulphate, NTU, Ca+2, Mg+2, K+, and Na+). All brands demonstrated excellent quality of drinking water as indicated by their Water Quality Index (WQI) values.
subject: Articles
  topic: section
subject: Water quality
  topic: keywords
subject: physicochemical parameters
  topic: keywords
subject: Water Quality Index
  topic: keywords
subject: drinking water
  topic: keywords
creator: Essa Shawail
creator: Magdi Buaisha
creator: Amal Aspaq
creator: Mohamed Elsadik
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 127
ending page: 140
doi: 10.37375/t742wx58

Evaluation of the effectiveness of treating broad bean seeds with fungicides on germination and plant growth
type: item
description: The current study was carried out in a laboratory and a greenhouse at the Department of Botany, Faculty of Science, University of Sirte, during the 2024/2025 season, to determine the effects of soaking faba beans in four different fungicides (Moncerin 25%, Topsin–M70, Rizolex-T50%, and Vitavax-200) on germination percentage and some morphological traits of faba beans under laboratory and greenhouse conditions. These treatments were distributed in a randomized complete block design (RCBD) with three replicates. The laboratory results showed that the Moncerin 25% fungicide achieved the highest values of faba bean germination percentage after 3, 5, 7, and 10 days, followed by Topsin–M70, while the control treatment had the lowest germination percentage values. Furthermore, compared to the control, which recorded lower values of seed dressing germination percentage, Vitavax-200 recorded the highest dressing germination percentage after 3, 5, 7, and 10 days, followed by Moncerin 25% and Rizolex -T50%. This was true for all fungicides tested. However, in a greenhouse, seed soaking with 25% Moncerin, Rizolex T50%, and Topsin-M70 had a highly significant impact on shoot length, number of leaves, and fresh weight. Furthermore, compared to Rizolex T50% and Moncerin 25%, the germination percentage of faba bean seed soaking was greater with Vitavax-200, Topsin-M70 (83%), and control.
subject: Articles
  topic: section
subject: Faba bean
  topic: keywords
subject: fungicides
  topic: keywords
subject: germination percentage
  topic: keywords
subject: morphological traits
  topic: keywords
creator: Ali Abdulla Emhemmed
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 117
ending page: 126
doi: 10.37375/sgjxr332

The Prevalence and Association of Micronutrient Deficiencies with Hair Loss in Children and Adolescents: A Cross-Sectional Study
type: item
description: Background: Hair loss is one of the most frequent dermatological complaints that causes significant stress not only for adult patients but also for children and adolescents and their families. Since the latter are more prone to metabolic deficiencies, the association between this complaint and micronutrient deficiencies is worth evaluating. This study did not explore the prevalence of the disease among the specified age group but only found the association between micronutrient deficiency (vitamin D and iron) among the selected study sample. Methods: a cross-sectional observational study, the study sample was taken from a dermatology clinic in the city of Sirte – Libya, over a time period of 6 months, patients were selected according to their clinical presentation (two main complaints: hair loss and alopecia areata) and according to age (from birth to 15 years old), after careful history, clinical examination and investigations, a total of 35 cases were included and their serum levels of Vit D, Ferritin and calcium were registered and analyzed by SPSS program. Results: A total of 35 cases were evaluated, comprising 27 female and 8 male patients. The mean age of the participants was 11.03 years, with a median age of 12 years and a standard deviation of 3.50198. Of the cases examined, 29 patients (82.86%) reported experiencing hair loss, while 8 patients (17.14%) were diagnosed with alopecia areata. Within the hair loss group, 96.55% were found to have low levels of vitamin D, 34.48% presented with low serum calcium, and 68.97% exhibited low serum iron levels. Among the patients with alopecia areata, 83.3% had a deficiency in vitamin D, 50% had hypocalcemia, and 100% exhibited iron deficiency. Conclusion: The findings indicate a significant prevalence of micronutrient deficiencies associated with hair loss and alopecia areata in children and adolescents. This observation may suggest a potential etiological relationship between these deficiencies and hair-related sympt…
subject: Articles
  topic: section
subject: Hair loss
  topic: keywords
subject: alopecia areata
  topic: keywords
subject: micronutrients
  topic: keywords
subject: deficiency
  topic: keywords
subject: Middle East
  topic: keywords
subject: Libya Sirte.
  topic: keywords
creator: Hoda Farag Jaloul
creator: Ali Ismaeil
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 110
ending page: 116
doi: 10.37375/mc3qmt66

Carrot Juice as a Natural Adjuvant Therapy: Amelioration of Cisplatin-Induced Testicular and Epididymal Histoarchitectural Disruption
type: item
description: Background: Cisplatin is a widely used chemotherapeutic agent known for its efficacy against various solid tumors. However, its use is limited by significant adverse effects, particularly testicular toxicity, which can impair spermatogenesis and male fertility. Cisplatin-induced testicular damage is primarily mediated through oxidative stress, inflammation, and apoptosis. Natural antioxidants have garnered attention for their potential to counteract such toxicity. Carrot (Daucus carota) is rich in β-carotene and polyphenols, which possess antioxidant and anti-inflammatory properties. Objective: This study aimed to evaluate the histoprotective effects of fresh carrot juice on cisplatin-induced testicular damage in rabbits, focusing on the preservation of testicular architecture and mitigation of histopathological alterations. Methods: Fifteen adult male rabbits were randomly assigned to three groups: control, cisplatin-treated, and carrot juice + cisplatin. Carrot juice (5 mL/kg/day) was administered orally for four days before and three days after a single intraperitoneal dose of cisplatin (5 mg/kg). Testicular and epididymal tissues were harvested and processed for histological examination using hematoxylin and eosin staining. Observations were made under light microscopy, and statistical analysis was performed using one-way ANOVA with Tukey’s post hoc test. Results: Histological analysis revealed that cisplatin treatment induced marked testicular damage, including degeneration of seminiferous tubules, loss of germ cells, interstitial edema, and disrupted Leydig cell morphology. In contrast, the group pre-treated and post-treated with carrot juice exhibited significant preservation of testicular architecture, with reduced germ cell loss, minimal tubular degeneration, and relatively intact Leydig and Sertoli cells. Epididymal epithelium and sperm maturation structures also appeared better preserved in the carrot-treated group. Conclusion: Fresh carrot juice demonstr…
subject: Articles
  topic: section
subject: Cisplatin
  topic: keywords
subject: Testicular Toxicity
  topic: keywords
subject: Carrot Juice
  topic: keywords
subject: Antioxidants
  topic: keywords
subject: Spermatogenesis
  topic: keywords
creator: Warda M Abdelhafiz
creator: Tahani Y Omar
creator: Karima A Ahmed
creator: Fatima M Mokhlouf
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 101
ending page: 109
doi: 10.37375/gpfb4867

Unique Case of Guillain-Barré Syndrome Associated with Pneumococcus in a Young Female Patient Attending Sirt Teaching Hospital, Libya
type: item
description: Guillain-Barré Syndrome (GBS) is an infrequent neurological disorder where the immune system mistakenly attacks peripheral nerves, leading to progressive weakness, sensory disturbances, and, in severe cases, paralysis. The precise cause of GBS remains unclear, though it is often preceded by an infection. Common infectious triggers include gastrointestinal pathogens such as Campyl-obacter and respiratory infections like Mycoplasma pneumoniae and influenza. In this case report, we describe a 25-year-old female who presented with acute dyspnea, bilateral limb weakness, and sensory abnormalities beginning as a "pins-and-needles" sensation in her hands. Her condition rapidly progressed, culminating in septic shock due to Pneumococcus, complicated by Acute Respir-atory Distress Syndrome (ARDS). Neurological evaluation confirmed the diag-nosis of Guillain-Barré Syndrome. This case highlights a rare but significant as-sociation between pneumococcal infection and GBS, emphasizing the complexity of its clinical presentation.
subject: Articles
  topic: section
subject: Guillain-Barré syndrome
  topic: keywords
subject: septic shock
  topic: keywords
subject: peripheral neuropathy
  topic: keywords
creator: Jadalla Emhalhel
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 97
ending page: 100
doi: 10.37375/htx25g58

A study of Mycobacterium tuberculosis among respiratory patients coming to the center for infections and Endemic Diseases in Sirte city, Libya between 2018 and 2023
type: item
description: BACKGROUND: Tuberculosis (TB) remains a major global health challenge, with significant morbidity and mortality, particularly in developing countries. Libya has an incidence rate of 53 cases per 100,000 population, but there is no information about other regions, especially from Sirte. This study aimed to assess the epidemiology of Mycobacterium tuberculosis among respiratory patients in Sirte (2018–2023) to address this gap. METHODS: A cross-sectional study was conducted on some respiratory patients attending the National Center for Control of Communicable and Endemic Diseases in Sirte, Libya. It included 136 patients . Ziehl-Nielsen stain and the GeneXpert test were used to examine sputum and make the diagnosis. Using SPSS, demographic and clinical data were analyzed, and associations were found using chi-square tests. RESULTS: This study found an 8.08% TB prevalence (11/136 cases), with higher rates in females (13%) than males (5%) (P>0.5). The age group from 16 - 26 years showed the most widespread occurrence at 45.45% and the group from 26 - 37 years demonstrated 31.25% prevalence. The reported cases did not include children between 5 - 15 years old or adults from 58-67years. All infections were recorded among Libyan nationals, with no notable differences based on nationality (P>0.5). The highest prevalence rate of 45.45% appeared in the age group between 16 and 26 years old. Following this group were people between 26 and 37 years old showing a 31.25% occurrence. No instances of this condition were documented in children between the ages of. CONCLUSION: The results indicate an 8.08% prevalence of tuberculosis in patients. These results found an 8.08% tuberculosis (TB) prevalence in patients which occurred at greater percentages among young adults and Libyan nationals. Although statistical significance was not reached about gender and nationality differences, the detected patterns point to potential sociodemographic impacts. The research underscores the require…
subject: Articles
  topic: section
subject: Tuberculosis
  topic: keywords
subject: Mycobacterium tuberculosis
  topic: keywords
subject: Epidemiology
  topic: keywords
subject: Prevalence
  topic: keywords
subject: Respiratory infections
  topic: keywords
subject: Public health
  topic: keywords
creator: Hana Abd Alsalam zaed
creator: Ali Mohamed Elgobbi
creator: Fathiya Albgdadi Ahmed Asteal
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 92
ending page: 96
doi: 10.37375/jgqme456

Outcomes of 52 cases of surgical mesh repair for paraumbilical hernias
type: item
description: Background: The literature stated that para-umbilical hernias of less than 2cm in diameter could undergo primary suture closure. Mesh repair is preferred for defects greater than 2 cm in diameter. The objective of the study was to assess the result of para-umbilical hernia repair with proline mesh regardless of the size. Patient and Methods: We present a retrospective study of patients with para-umbilical hernia treated with onlay mesh placement and followed for 1–4years. Various factors including sociodemographic data of patients, post-operative complications, morbidity and mortality were examined. Results: The median age of the 52 patients in the series was 46 years old, with ages ranging from 23 to 77. (28.7) was the mean body mass index. Of the 44 female patients, 35 (79.5%) were multipara. Nine cases (17.3%) had recurrent hernias, while 43 cases (82.6%) presented for the first time. 35 patients (67.3%) had a hernia size > 2 cm, while 17 patients (32.6%) had a hernia defect ≤2 cm. Five patients (9.6%) had superficial surgical site infections. Two female patients (3.8%) had seroma. After two years, one patient (1.9%) had a recurrence hernia. Conclusion: All sizes of paraumbilical hernias can be repaired using mesh onlay surgery, which also has a low recurrence rate and equivalent rates of morbidity and recurrence to international standards.
subject: Articles
  topic: section
subject: Paraumbilical hernia
  topic: keywords
subject: Size
  topic: keywords
subject: Mesh repair
  topic: keywords
subject: Hernia repair
  topic: keywords
creator: Abdalla M.M Etbiga
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 86
ending page: 91
doi: 10.37375/tszv1q43

Prevention, early detection and treatment of breast cancer in Benghazi-Libya: Patients’ points of view: A qualitative study
type: item
description: Programs focusing on prevention, early detection, and treatment of breast cancer (BC) are crucial for enhancing survival rates, improving quality of life, reducing morbidity and mortality. Patients’ experiences play important role in detecting gaps in present programs help creating and executing initiatives that raise awareness about risk factors, promote screenings, and ensure early detection and effective management of BC. Aim of the study: - Explore patients’ experiences and knowledge. - Address use of Breast Self-Examination (BSE), screening programs. - Describe financial burden of BC management. Participants and method: Qualitative study during January- March 2022, at Benghazi Medical Center. 31 patients participated. In-depth interviews conducted, recorded. Familiarizations of data, coding, identifying thematic framework, indexing, charting, mapping, interpretation and reporting findings. Results: Half the sample were below fifty, no family history of BC, one-third of patients discovered by (BSE). Two themes developed: 1) Prevention, Education and Early detection: patients lack scientific knowledge of BC risk factors and causes. Two-thirds of patients never applied BSE. Most cases diagnosed in advanced stages. Lack of communication between healthcare providers and patients led to late detection. 2) Diagnosis, treatment and support: public health financing programs inadequacy, medical system weakness led to delay in diagnosis and treatment. Lack of fundings caused out of pockets spending, (catastrophic spending). Need of patient groups to provide medical, psychological and social support. Conclusion: Urgent need to improve screening and diagnosis, treatment and palliative care of BC patients. Need to develop organized frameworks and management guidelines for prevention, early detection and management of BC in Libya.
subject: Articles
  topic: section
subject: Breast cancer
  topic: keywords
subject: Libyan patients
  topic: keywords
subject: knowledge
  topic: keywords
subject: breast self-examination
  topic: keywords
subject: prevention programs
  topic: keywords
subject: screening
  topic: keywords
subject: treatment options
  topic: keywords
creator: Mohamed M. B Elfallah
creator: Butheina K Greiw
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 77
ending page: 85
doi: 10.37375/5ysd5680

Time effects on deflection of reinforced concrete beams with large web opening
type: item
description: The objective of the present study is to elucidate the influence of creep and shrinkage on the long-term deflection of reinforced concrete beams that contain a large opening in the web under service sustained loads while also providing practical equations for the design of deflection in reinforced concrete structures predicated on linear creep theory. To achieve this, the simplified equations used in the present EC2, ACI code, and ACI435 are rigorously evaluated and contrasted. In addition, 4RC simply supported reinforced concrete beams (3RC beams with large web opening and 1RC beam without opening) under sustained mid-span load were made and tested, to validate the proposed method. The proposed method, based on a new simplified curvature coefficient, is found simple to use, amenable to programming on compact calculators, and exhibits a high degree of concordance with empirical results, thus, it is concluded that the proposed equations possess a suitable level of practicality for adoption in practice.
subject: Articles
  topic: section
subject: beam (reinforced concrete)
  topic: keywords
subject: opening
  topic: keywords
subject: long-term deflection
  topic: keywords
subject: concrete creep
  topic: keywords
subject: concrete shrinkage
  topic: keywords
subject: design structure
  topic: keywords
creator: Wael Mounir Saker
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 67
ending page: 76
doi: 10.37375/a1ybxn41

A Comparison between steam injection and combined cycle power plant using exergy analysis
type: item
description: The objective of this paper aims is to analyze the performance of a Siemens GT5-2000E gas power plant in West Tripoli using steam injection and combined cycle technologies from an exergy perspective to evaluate energy conversion efficiency and reduce thermal losses. The study relies on real operational data from the power plant. Two gas turbine units were simulated using Aspen Plus to apply the steam injection and combined cycle techniques, while an exergy analysis using the operational data of each system component was performed using Excel. The results showed that the steam injection and combined cycle technologies achieved different exergy efficiencies compared to a standard cycle gas turbine. The exergy efficiency of the two gas units in the conventional cycle was 55.19%. After applying the steam injection technique, the exergy efficiency increased to 74.82% at 15°C, reflecting an improvement of 35.6% compared to the conventional cycle. In contrast, the combined cycle technique recorded an exergy efficiency of 49.10%, representing a lower improvement of 10.1% compared to the conventional cycle. Exergy analysis also revealed that the combustion chamber was the largest contributor to exergy destruction in all cases, accounting for 40–50% of total losses. It can be concluded that the steam injection technique represents the most efficient option from an exergy perspective, as it achieves the highest improvement in energy conversion efficiency and the lowest energy losses compared to the combined cycle and the conventional cycle gas units.
subject: Articles
  topic: section
subject: Steam injection
  topic: keywords
subject: combined cycle
  topic: keywords
subject: gas turbine station
  topic: keywords
subject: Aspen Plus
  topic: keywords
creator: Reyad Qaddoura
creator: Nuri Eshoul
creator: Mosbah Talbi
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 58
ending page: 66
doi: 10.37375/rzvqhk92

ESP PRODUCTION OPTIMIZATION BY USING PIPESIM
type: item
description: Artificial lift systems are among the most extensively employed production methods. Lift methods are required to facilitate production in wells that cannot produce liquids to the surface under their pressure. One of the important types of artificial lift methods, which is lowers the producing bottom hole pressure on the formation to obtain a higher production rate from the well. It is an efficient and reliable method for lifting moderate to high volumes of fluids from wellbores. This study aims to design & Simulate an Electrical submersible pump by using PIPESIM software also to change WC, GOR and Tubing size to observe the effects of each one of them on the ESP design and on production system. The input data from the Nafoora oil field that is operated by the Arabian Gulf Oil Company (AGOCO) a subsidiary of the state owned national oil corporations (NOC).
subject: Articles
  topic: section
subject: ESP
  topic: keywords
subject: Artificial lift
  topic: keywords
subject: WC
  topic: keywords
subject: GOR
  topic: keywords
subject: PIPESIM
  topic: keywords
creator: Salim Ghayth
creator: Abdulrauof Ghayth
creator: Ghaith Hamed
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 53
ending page: 57
doi: 10.37375/qr75ab28

Antimutagenic effects of the ginger extract of reducing chromosomal mutation induced by cyclophosphamide in male rats
type: item
description: The drug cyclophosphamide (CP) has harmful genetic effects when used with a dose of 5 mg/kg body mass. For this reason, this study was carried out to determine these harmful effects and try to reduce these effects by using the metabolic extract of ginger. Chemotherapeutic treatments are linked to a variety of undesirable outcomes, the most dangerous of which are mutagenesis acts. To measure the possible anti-mutagenic and ginger extract's ability to prevent chromosomal abnormality in bone marrow cells. Four groups, each with seven animals, were used in the experiment. The first group, the control group, consisted of negative control rats fed a regular meal and purified water. In contrast, the second group was given oral cyclophosphamide at a daily amount of 5 mg/kg body mass for four weeks. The third group (the test group), for the duration of four weeks, received 200 mg of ginger extract per kilogram of body weight every day. The fourth group, the protective group, received two phases of treatment: first, 200 mg/kg body mass of ginger extract was given, and then, two hours later, cp (5 mg/kg body mass daily) was received verbally for four weeks. In the CP group, notable changes existed in the chromosome genes of the somatic and mitotic index and an increased frequency of chromosomal changes in terms of structure and number. These results describe the chromosomal effects of CP free radicals. Chromosome aberration is reduced in comparison to the test group when ginger extract is used; chromosomes in bone marrow cells are negatively impacted by CP. Chromosomal studies in bone marrow cells of rats indicate that the CP at 5mg/Kg causes an increase in the level of chromosomal aberrations. These aberrations include ring chromosomes, breaks in the chromosomes and chromatids and in the centromere region, and other aberrations. However, when the ginger extract was given before the CP, the level of chromosomal aberration defects was reduced in comparison with the positive con…
subject: Articles
  topic: section
subject: cyclophosphamide
  topic: keywords
subject: bone marrow
  topic: keywords
subject: ginger
  topic: keywords
subject: mitotic index
  topic: keywords
creator: Aziza AbdulghaniMansur
creator: Nageia Abdalsadiq
creator: Ahmed Aljebali
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 39
ending page: 52
doi: 10.37375/30h42q28

The Impact of Gamma Radiation on Aluminum Alloy Thermal Conductivity Alumina Composite 6063
type: item
description: The thermal conductivity of aluminum alloy 6063 alloy reinforced with alumina particles was studied. Aluminum alloy 6063 alloy matrix composites reinforced with varying weight percentage of alumina particles (0, 3, 5, 7) were prepared using the stir casting technique. Under normal circumstances (before to irradiation), the thermal conductivity tests were performed for every weight percentage. Because of the reinforcement material, we observe that the values of thermal conductivity drop as the weight % increases. Following exposure to gamma rays emitted from cesium, which has a half-life of 30.04 years and an emitted energy of 662 KeV, tests of thermal conductivity are conducted. When compared to thermal conductivity readings under normal circumstances, the results indicate a drop in thermal conductivity levels following irradiation. The thermal conductivity of the developed composites was analyses and compared with the matrix alloy. The experimental results showed that the composition ratio of reinforcement and gamma radiation influenced the structure of aluminum alloy 6063 alloy through homogeneously dispersed within the matrix and point defect. It can be leading to destroyed in thermal conductivity.
subject: Articles
  topic: section
subject: Aluminum alloy 6063 alloy
  topic: keywords
subject: alumina composites
  topic: keywords
subject: gamma rays
  topic: keywords
subject: thermal conductivity
  topic: keywords
creator: Abdlfatth. A Khalil
creator: Mossa. R Elzaroug
creator: Rafaa .M Esmaael
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 33
ending page: 38
doi: 10.37375/99j6f781

Prevalence, Risk Factors, and Microbial Profile of Urinary Tract Infections in Pediatric Population
type: item
description: Urinary tract infections (UTIs) are among the most common bacterial infections in childhood. This study aimed to determine the clinical symptoms, laboratory test results, risk factors, and etiology of symptomatic UTIs in pediatric patients admitted to Tobruk Medical Center, with a focus on age and sex differences. The study was designed as a retrospective analysis and included data from 1 January to 31 December 2023. A total of 84 patients were included in the study. In terms of sex distribution, females were three times more prevalent than males, accounting for 77.4% of cases compared to 22.6% for males. The observed clinical presentations were as follows: dysuria (18%), suprapubic pain (17.2%), vomiting (17.2%), fever (15.2%), urinary frequency (15.2%), urgency (9.3%), and hematuria (7.8%). The age distribution of participants was as follows: 46% were between 3 and 4 years old, 40% were between 5 and 8 years old, 9.5% were between 9 and 12 years old, and 3.6% were over 12 years old.
subject: Articles
  topic: section
subject: Urinary Tract Infection
  topic: keywords
subject: pediatrics
  topic: keywords
subject: Risk factors
  topic: keywords
creator: Khadeejah Miftah Ali Al-Khurum
creator: Hanadi Abdullah Abdulhadi
creator: Najla Hasan Mohammed
creator: Ayiman Salamah Abdulhamid
creator: Sarah Khalid Amghayib
creator: Eman Sabir Alsanosy
creator: Waad Omar Elmziny
rights: Copyright (c) 2025 Sirte University
date: 2025-06-25
publication date: 2025-06-25
starting page: 28
ending page: 32
doi: 10.37375/a7gz6827