University of Science and Technology, Yemen (USTY): Journals / جامعة العلوم والتكنولوجي
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Fink\u27s Crisis Management Model: Theory and Practice
No full textهدفت الدراسة إلى تقديم تحليلٍ نقدي معمقٍ لنموذج فينك لإدارة الأزمات، عن طريق فحص مدى قابليته للتطبيق وفعاليته في سياق بيئة الأزمات المعاصرة التي تتسم بالتعقيد والديناميكية الرقمية، وذلك بالوقوف على كتابه (إدارة الأزمات: التخطيط لما هو غير متوقع, 1986)، وبيان منهج المؤلف فيه. حيث استخدمت الدراسة المنهج النوعي بأسلوب تحليل المحتوى الاستقرائي والاستنباطي. وقد توصَّلت الدراسة إلى العديد من النتائج، أهمها: أنَّ القيمة الكبرى لنموذج فينك في السياق المعاصر لم تعُد تكمن في كونه دليلاً تطبيقيًا صارمًا، بل في كونه أداةً تعليميةً وتحليلية، وأنَّ الافتراضات الخطية التي يقوم عليها النموذج تتعارض بنحوٍ متزايدٍ مع الطبيعة غير الخطية والشبكية للأزمات الحديثة. كذلك كشفت الدراسة أنَّ الفجوة بين النظرية والتطبيق لا تنبع فقط من قصور النموذج، بل أيضًا من تحدياتٍ بشريةٍ وتنظيميةٍ متأصلة، وأنَّ الحل لا يكمن في التخلي الكامل عن نموذج فينك، بل في دمجه ضمن أُطر عملٍ أكثر شمولية ومرونةThis study aimed to provide an in-depth critical analysis of Fink\u27s crisis management model by examining its applicability and effectiveness within the context of contemporary crisis environments characterized by complexity and digital dynamism. This was achieved by focusing on Fink\u27s book, Crisis Management: Planning for the Unexpected (1986), and analyzing the author\u27s methodology. The study employed a qualitative approach using inductive and deductive content analysis. The study\u27s main conclusion was that Fink\u27s model is no longer useful as a strict guide in today\u27s world, but it is still a very useful tool for learning and analysis. Furthermore, the study emphasized that the linear assumptions underlying the model are increasingly at odds with the non-linear and network-based nature of modern crises. The study also revealed that the gap between theory and practice stems not only from the model\u27s shortcomings but also from inherent human and organizational challenges. The solution, therefore, lies not in abandoning Fink\u27s model entirely, but in integrating it into more comprehensive and flexible framework
An Integrated Evaluation of Key Data Technologies: A Focus on Structure, Analytics, and Emerging Trends
No full textThis study compares five key data science domains: data structures, data analytics, big data, data mining, and database management systems (DBMS). As data-driven technologies have an increasing impact on corporate intelligence, automation, and academic research, it is vital to analyze their changing importance. A scoring framework was used using simulated yet realistic data to measure both current relevance and future development potential across fields. These trends were highlighted using grouped bar charts as visualizations. According to the report, while core areas such as data structures and DBMS remain vital, technologies such as big data and data analytics have the potential for significant growth. Data mining has also gained increased relevance as a result of its interaction with machine learning. These findings provide actionable insights for educators, academics, and industry experts who want to connect their skills and investments with future technological demand
Bayesian Analysis of Financial Impact of Cardiovascular Diseases in LAUTECH Teaching, Hospital, Oyo State, Nigeria
No full textcardiovascular diseases (CVDs) remain a major health challenge in Nigeria that leads to high morbidity, mortality, and financial burden. Low- and middle-income countries (LMIC), with no exception to Nigeria, are suffering from high hospitalization costs for treating CVDs. The cost leads to Monthly Financial Loss (MFL) and prolonged treatments. In literature, there is a dearth of study on Financial Impact (FI) for treating CVDs in Nigeria.
Objective— This work is aimed at evaluating the FI where there is prior information about CVDs at LAUTECH Teaching Hospital (LTH).
Method— Bayesian Multinomial Logistic Regression (BMLR) is explored to evaluate the MFL incurred by CVD patients at LTH and the type of CVDs contributing to it.
Result— The results show that there is a probability of having MFL among different CVD patients in LTH.
Conclusion— Policymakers in health sectors should implement targeted financial aid for the treatment of CVDs to address the different MFL
An Efficient Routing Protocol Technique in Flying Ad Hoc Network Using
No full textUnmanned aerial vehicles (UAVs) have been made possible by developments in technology. Clusters of UAVs that communicate while in close proximity to achieve a common goal make up a Flying Ad Hoc Network (FANET). FANETs have garnered huge interest in recent times due to their potential uses across numerous fields, including agriculture, environment, rescue operations, and surveillance, among others. High-speed nodes, low density, constrained energy resources, and quick topology changes are just a few of the difficulties FANETs have encountered. Because of this, routing in these networks is a difficult problem. Therefore, this study developed an efficient routing technique for FANETs using the enhanced mayfly algorithm and optimal link state routing (EMAOLSR). The study model is based on the topology technique of OLSR, while the enhanced mayfly algorithm (EMA), which is a swarm-based approach, was utilized for optimal selection of multipoint relays (MPRs) in FANET to improve the performance of OLSR. EMAOLSR optimally selects a node as the MPR that has a high residual energy and a high-quality connection. The developed EMAOLSR was simulated using the MATLAB toolbox. EMAOLSR was compared with the existing technique of firefly algorithm optimized link state (FAOLSR) and OLSR. Results show that our routing technique (EMAOLSR) performed better than FAOLSR and OLSR in terms of energy consumption, throughput, end-to-end delay, packet delivery rate, packet loss rate, and network efficienc
The Impact of Organizational Culture on Job Burnout: A Field Study at Yemeni Pharmaceutical Industrial Companies
No full textهدفت الدراسة إلى تحديد أثر الثقافة التنظيمية بأبعادها: (القيم التنظيمية، والمعتقدات التنظيمية، والأعراف التنظيمية، والتوقعات التنظيمية) في الاحتراق الوظيفي بأبعاده: (الإنهاك العاطفي، وتبلد المشاعر، وتدني الإنجاز الشخصي) في شركات صناعة الأدوية اليمنية، والتعرف على مستوى الثقافة التنظيمية، ومستوى الاحتراق الوظيفي في شركات صناعة الأدوية اليمنية. واعتمدت الدراسة المنهج الوصفي التحليلي، ووزِّعت استبانة على عينةٍ عشوائيةٍ طبقيةٍ مقدارها (259) موظفًا، جرى اختيارها من مجتمع الدراسة البالغ عددهم (900) موظف، ومن تحليل البيانات باستخدام أساليب التحليل الوصفي وتحليل الانحدار المتعدد بواسطة برنامج الحزمة الإحصائية في العلوم الاجتماعية (SPSS) توصَّلت الدراسة إلى وجود أثرٍ للثقافة التنظيمية في الاحتراق الوظيفي في شركات صناعة الأدوية اليمنية. كما أظهرت نتائج الدراسة أنّ مستوى الثقافة التنظيمية كان عالياً في شركات صناعة الأدوية اليمنية، بينما مستوى الاحتراق الوظيفي كان متوسطاً. وخلصت الدراسة إلى ضرورة زيادة الاهتمام بالثقافة التنظيمية ونشرها بين موظفي شركات صناعة الأدوية اليمنية، وتحسين مستواها؛ لما لها من أثر في خفض مستوى الاحتراق الوظيفي.The study aimed to identify the impact of Organizational Culture (Organizational Values, Organizational Beliefs, Organizational Norms and Organizational Expectations) on job burnout through its dimensions (Emotional exhaustion, Desensitization, low personal achievement) at Yemeni Pharmaceutical Industry Companies. The descriptive analytical method was adopted and a questionnaire to collect data. The study population consist of employees with a total number of (900) employees. The stratified random sample with a total number of (259). By analyzing the data using descriptive analysis methods and multiple regression analysis using the SPSS program, the findings revealed impact of organizational culture on job burnout at Yemeni Pharmaceutical Industry Companies. The findings also showed that the level of organizational culture at Yemeni Pharmaceutical Industry Companies was high, And the level of job burnout was medium. The study concluded with an emphasis on paying more attention to organizational culture across dissemination among employees of the Pharmaceutical Industry Companies, to enhance its level, thus reducing the job burnout level
Pharmaceutical Quality Evaluation of Commercial Baclofen Tablets in the Yemeni Market: An In Vitro Study
No full textBackground: For good health and improved trust in the pharmaceutical products, quality control tests must be conducted continuously for both local and imported products to ensure safety and effectiveness.
Objective: To evaluate the in vitro characterization of different imported and local pharmaceutical products of the muscle relaxant (baclofen 10 mg) available in Taiz City.
Methods: According to the USP standards, different quality control tests were conducted to physicochemically characterize various baclofen 10 mg tablets (one local and two imported brands) available in the Yemeni market.
Results: The results of the three brands of baclofen 10 mg tablets showed that product (C) disintegrated more slowly (6.39 minutes) than products (B) and (A) (0.35 and 3.00 minutes, respectively). Every brand has a satisfactory level of friability below 1% loss. The maximum assay content (98.39%) and drug release (105%) were displayed by local product (A). Although product (B) test content was lower (88.98%), its drug release was still satisfactory (96%). By contrast with product (B) (5.35 kg) and product (A) (5.38 kg), C product\u27s hardness (2.26 kg) was below USP standards (4-6 kg), and its drug release was 85%; however, the assay content was significantly satisfactory (96.98%).
Conclusion: The outcomes of this study show a high dissolution rate and quick disintegration time, with assay content falling inside the acceptable range. While the imported products decomposed slowly, within the drug content limit, and had a lower hardness value than USP criteria, the local product had the best results in different characterizations. All results confirm the necessity of continuous monitoring for pharmaceutical products
Developing A Real-time Phishing Detection Chrome Extension Using Support Vector Machine (SVM) With Splunk Integration
No full textPhishing attacks have become a widespread worldwide concern due to the negative impact on individuals and organizations by targeting valuable information, which may cause significant harm on various levels. Therefore, to mitigate these attacks, we proposed a system that uses a machine learning model to detect fraudulent URLs in real time through a Chrome extension and report them to Splunk, which will enable centralized analysis and supervision. The system utilizes a Support Vector Machine (SVM)—mainly used for text classification—with a Radial Basis Function (RBF) kernel. It was trained on a dataset of 11,054 records encompassing 30 unique features. The model demonstrated a robust and accurate performance in detecting phishing URLs, as it gained a score of 96.9% for accuracy, 96.5% for precision, 98% for recall, and 97.2% for F1 score. Ultimately, the primary purpose is to protect organizations and individuals from the severe consequences of phishing attacks in a real-time manner by detecting phishing URLs and then reporting them along with relevant information to Splunk
The Role of Digital Marketing in Enhancing Mental ImageA Field Study in Civil Society Organizations Operating in Hadhramaut Coast
No full textهدفت هذه الدراسة إلى التعرُّف على دور التسويق الرقمي في تعزيز الصُّورة الذهنية لدى منظمات المجتمع المدني بساحل محافظة حضرموت، حيث جرى استخدام المنهج الوصفي والتحليلي، بالاعتماد على الاستبانة أداةً لجمع البيانات، وتكوَّن مجتمع الدراسة من العاملين في منظمات المجتمع المدني بساحل محافظة حضرموت التي تستخدم التسويق الرقمي في إبراز أنشطتها، ويقدَّر عدد أفراد المجتمع (162) عاملًا مأخوذين من سبع منظمات، اعتمد الباحثان على أسلوب المسح الشامل، كانت نسبة الاستجابة (88.9%)، الصالح منها للتحليل (144) استبانة، وقد توصَّلت الدراسة إلى أنَّ مستوى توافر التسويق الرقمي كان مرتفعًا، بوسطٍ حسابي (3.74)، ومستوى توافر الصُّورة الذهنية كان مرتفعًا، بوسطٍ حسابي (3.97)، ووجود دورٍ ذي دلالةٍ إحصائيةٍ عند مستوى دلالة (0.05 ≥ α) بين التسويق الرقمي وتعزيز الصُّورة الذهنية لدى منظمات المجتمع المدني بأبعاده مجتمعةً ومنفردة، وبناءً على هذه النتائج، أوصت الدراسة بالآتي: متابعة أحدث التطورات في عالم التسويق الرقمي، مثل ظهور منصاتٍ جديدةٍ أو تقنياتٍ جديدة، وإنتاج فيديوهاتٍ قصيرةٍ وجذابةٍ لشرح القضايا، أو تقديم القصص الإنسانية التي تعزِّز من الصُّورة الذهنية للمنظمةThis study aimed to identify the role of digital marketing in enhancing the public image of civil society organizations in the coastal region of Hadramawt Governorate. A descriptive and analytical approach was used, relying on a questionnaire as the data collection tool. The study population consisted of employees in civil society organizations in the coastal region of Hadramawt Governorate that utilize digital marketing to promote their activities. The population comprised 162 employees from seven organizations. The researchers employed a comprehensive survey method, achieving a response rate of 88.9%, of which 144 questionnaires were valid for analysis. The study concluded that the availability of digital marketing was high (mean 3.74) and the availability of public image was also high (mean 3.97). Furthermore, a statistically significant relationship (α ≤ 0.05) was found between digital marketing and enhancing the public image of civil society organizations, both in its combined and individual dimensions. Based on these findings, the study recommends the following: monitoring the latest developments in the world of digital marketing, such as the emergence of new platforms or technologies, and producing videos. Short and engaging to explain issues or present human stories that enhance the organization\u27s public imag
Approaches To the Phonetic System of Quranic Pauses: Applied Models
No full textمما هو معلومٌ أن نقرَّ بأنَّ هذا التميز الصوتي الذي امتازت به اللغة العربية لا يجعل منها شاذةً لا يمكن موازنته أو تفاعله مع غيره من الفكر اللغوي البشري، ومن هنا، يمكن لنا في هذا البحث أن نمشيَ عبر مستقيمين متوازيين، وأن نقيم بين هذين الحقلين » حوارًا متميزًا بين الفكر اللغوي العربي القديم والفكر اللساني الحديث على أساس القرض والاقتراض، مع انتماء الفكرين إلى حقلين نظريين متباينين « ، معنى ذلك أنَّ نظرية التأثير والتأثر قد تحدث بين قطبين لغويين دون مراعاة الحدود الزمانية والمكانية لهذين القطبين، وقبل الولوج في صميم هذا الإشكال أولًا نتعرف على سبُل المقاربة العلمية لهذه الظاهرة الصوتية. فما الأسس العلمية التي بُني عليه البحث الصوتي؟ وما سبُل الولوج إلى خصائصه؟ هذه الأسئلة وغيرها يجيب عنها البحث وفق المنهج الوصفي التحليليIt is well known that this phonetic distinction that distinguishes the Arabic language does not make it anomalous that cannot be balanced or interacted with other human linguistic thought. Hence, in this research, we can walk along two parallel lines and establish between these two fields “a distinct dialogue between ancient Arabic linguistic thought and modern linguistic thought based on borrowing and borrowing, despite the two thoughts belonging to two different theoretical fields.” This means that the theory of influence and being influenced may occur between two linguistic poles without taking into account the temporal and spatial boundaries of these two poles. Before delving into the heart of this problem, we first learn about the ways of scientifically approaching this phonetic phenomenon. What are the scientific foundations on which phonetic research is built? And what are the ways to access its characteristics? These questions and others will be answered by the research according to the descriptive and analytical approach
The Impact of Mandatory Change of External Auditor in Reducing the Risk of Material Misstatements in The Financial Statements: A Field Study of Auditors in The Republic of Yemen
No full textهدفت هذه الدراسة إلى التعرُّف على أثر التغيير الإلزامي لمراجع الحسابات الخارجي في تخفيض مخاطر التحريفات الجوهرية في القوائم المالية. واعتمدت الدراسة على المنهج الوصفي التحليلي، واستخدمت الاستبانة أداةً رئيسةً لجمع البيانات، والبرنامج الإحصائي (SPSS) لتحليل البيانات، 14)، ونماذج النمذجة البنائية (SmartPLS3). وتكوَّن مجتمع الدراسة من المراجعين القانونيين في مكاتب وشركات المراجعة في الجمهورية اليمنية، والبالغ عددهم (428) مراجعًا قانونيًا للعام (2024م) بحسب مصادر جمعية المحاسبين القانونيين، وقد أخذت الدراسة عينةً عشوائيةً بلغ عددها (207) مفردة، ، وبلغت الاستبانات الصالحة للتحليل (180) استبانة. ومن أهم النتائج التي توصَّلت إليها الدراسة، وجود أثرٍ معنوي للتغيير الإلزامي لمراجع الحسابات الخارجي (بأبعاده مجتمعة) في تخفيض مخاطر التحريفات الجوهرية في القوائم المالية، حيث أظهرت نتائج الدراسة أنَّ الشك المهني أكثر الأبعاد ارتباطًا بالتغيير الإلزامي ومؤثرًا في تخفيض مخاطر التحريفات الجوهرية في القوائم المالية، بينما كان منحنى التعلم أقل الأبعاد تأثيرًا في تخفيض مخاطر التحريفات الجوهرية في القوائم المالية. وأوصت الدراسة بتنظيم العلاقة الزمنية بين المراجع والعميل، ورفع وعي شركات ومكاتب المراجعة بأهمية التغيير الإلزامي، وتعزيز الشك المهني لدى المراجع، وتفعيل الرقابة على الأداء المهني للمراجع السابق، ومعالجة التشريعات الدولية وتكييفها محليًا، وإنشاء هيئةٍ مهنيةٍ مستقلةٍ للإشراف على المراجعة. كما أوصت الدراسة بمعالجة التحديات التي يفرضها تطبيق التغيير الإلزامي على منحنى التعلم والتكاليف الأوليةThis study aimed to identify the effect of mandatory rotation of external auditors on reducing the risks of material misstatements in financial statements. It examined the psychological impact of mandatory rotation on auditors and their professional behavior and its role in lowering misstatement risks. The study adopted a descriptive analytical approach, using a questionnaire, SPSS and STATA 14 for statistical analysis, and SmartPLS3 for structural equation modeling. The population consisted of licensed auditors in audit offices and firms in the Republic of Yemen, totaling 428 auditors in 2024 according to the Yemeni Association of Certified Public Accountants. A random sample of 207 respondents was selected, and 180 valid questionnaires were analyzed. The findings showed a statistically significant effect of mandatory external auditor rotation on reducing the risks of material misstatements in financial statements. Professional skepticism was the most influential dimension, while the learning curve had the least effect. The study recommended regulating auditor–client tenure, increasing awareness of mandatory rotation, strengthening professional skepticism, supporting auditor independence, enhancing oversight of prior auditors’ performance, adapting international regulations locally, establishing an independent professional body to supervise auditing, and addressing learning curve and cost challenge