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Abdelrahim Alqudah,Esam Qnais,Omar Gammoh,Yousra Bseiso,Mohammed Wedyan,Mohammad Alqudah,Taher Hatahet 한국식품영양과학회 2024 Preventive Nutrition and Food Science Vol.29 No.1
Inflammatory bowel disease (IBD) is a chronic disease that affects the entire digestive tract. IBD can be classified as ulcerative colitis or Crohn’s disease. The key symptoms of IBD include the emergence of abscesses or pustules, pronounced abdominal discomfort, diarrhea, fistulas, and intestinal narrowing, all of which can greatly affect a patient’s daily well-being. Several factors, including bacterial infections, immune response irregularities, and changes in the intestinal milieu, can contribute to the onset of IBD. The aim of this study was investigating the role of cirsimaritin in reducing the severity of colitis in animal model. To induce colitis in laboratory Swiss albino mice, a 4% dextran sulfate sodium (DSS) concoction was provided in their hydration source for a duration of six days. Before the onset of colitis, mice were treated with cirsimaritin (10 mg/kg) once daily to evaluate its potential treatment effects against DSS-induced inflammation. The results showed that 10 mg/kg of cirsimaritin decreased colitis severity (P<0.05). Moreover, cirsimaritin successfully reversed the detrimental effects induced by DSS, including weight reduction, colon truncation, tissue-related damage, increased levels of inflammatory cells in the affected region, and secretion of proinflammatory cytokines. Our findings suggest that cirsimaritin can effectively alleviate acute colitis triggered by DSS.
Stiffener configurations of beam to concrete-filled tube column connections
Abdelrahim K. Dessouki,Ahmed H. Yousef,Mona M. Fawzy 국제구조공학회 2014 Steel and Composite Structures, An International J Vol.17 No.1
The objective of this research is to study the ultimate moment capacity of the connections between steel I-beams and concrete-filled steel tube columns using different stiffener configurations. The main parameters considered are column cross section shape, square or circular, and filling the column with concrete. This analytical study includes finite element models using ANSYS program taking geometric and material nonlinearities into consideration. These models are verified against the experimental results obtained from previous researches and current design guides. The results show that using proper stiffener configuration affects the stress distribution through the connection and increases the ultimate moment capacity of the connections. Also, circular column is advantageous than the square column for all stiffener configurations and dimensions.
Scoping Review of the Occupational Health and Safety Governance in Sudan: The Story So Far
Abdelrahim Rasha A.,Otitolaiye Victor O.,Omer Faris,Abdelbasit Zeena 한국산업안전보건공단 산업안전보건연구원 2023 Safety and health at work Vol.14 No.2
Background: The reoccurrence of occupational accidents in Sudan is evidence of a lack of effective Occupational Health and Safety (OSH) governance in Sudan. Methods: This scope review research articles on OSH governance in Sudan from different sources, including international websites, official government websites, original research articles in journals, and various reports. The five stages of the scoping review followed in this study are: identifying the research question; identifying relevant studies; study selection; charting the data; collating, summarizing, and reporting the results. Results: There is numerous legislation in place; however, there is no evidence of their enforcement, and no formal bodies at the national level are identified as being responsible for their enforcement. Conclusion: Having multiple authorities with overlapping responsibilities hinders OSH governance. An integrated governance model is proposed to eliminate overlapping duties and to facilitate the participation of all stakeholders in the governance process.
Ahmad Abdelrahim DAHIYAT,Sulaiman Raji WESHAH,Mohammad ALDAHIYAT 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.5
The study aims to examine the impact of liquidity and solvency management on the financial performance of Jordanian manufacturing companies listed on the Amman Stock Exchange, for a period of 10 years from 2010 to 2019. The size of the company was used as a control variable. The study employs Return on Assets (ROA) and Earnings Per Share (EPS) to measure financial performance. Current ratio (CR) and total debts to total assets were used as proxies for liquidity and solvency management, while logarithm of total assets was used to measure the size. Correlation and multi regression analyses have been applied to analyze the data. The results show a statistically significant impact of independent and control variables (liquidity and solvency management and the size of the company) on financial performance, while the detailed results of the hypotheses indicate that liquidity has an insignificant reverse impact on financial performance. With respect to other variables, there is a significant positive impact of size on performance and a significant negative impact of solvency on performance. The study suggests in light of results, increasing investments in companies’ assets by focusing on internal financing, such that large-sized companies with low leverage will have a good performance.
Svensson, Johannes,Sourab, Abdelrahim A,Tarakanov, Yury,Lee, Dong Su,Park, Seung Joo,Baek, Seung Jae,Park, Yung Woo,Campbell, Eleanor E B IOP Pub 2009 Nanotechnology Vol.20 No.17
<P>Direct measurements are presented of the Schottky barrier (SB) heights of carbon nanotube devices contacted with Pd electrodes. The SB barrier heights were determined from the activation energy of the temperature-dependent thermionic emission current in the off-state of the devices. The barrier heights generally decrease with increasing diameter of the nanotubes and they are in agreement with the values expected when assuming little or no influence of Fermi level pinning. </P>
Chintharlapalli, Sudhakar,Papineni, Sabitha,Abdelrahim, Maen,Abudayyeh, Ala,Jutooru, Indira,Chadalapaka, Gayathri,Wu, Fei,Mertens-Talcott, Susanne,Vanderlaag, Kathy,Cho, Sung Dae,Smith III, Roger,Safe Wiley Subscription Services, Inc., A Wiley Company 2009 International journal of cancer: Journal internati Vol.125 No.8
<P>Methyl 2-cyano-3,11-dioxo-18β-olean-1,12-dien-30-oate (CDODA-Me) is a synthetic derivative of glycyrrhetinic acid, a triterpenoid phytochemical found in licorice extracts. CDODA-Me inhibited growth of RKO and SW480 colon cancer cells and this was accompanied by decreased expression of Sp1, Sp3 and Sp4 protein and mRNA and several Sp-dependent genes including survivin, vascular endothelial growth factor (VEGF), and VEGF receptor 1 (VEGFR1 or Flt-1). CDODA-Me also induced apoptosis, arrested RKO and SW480 cells at G<SUB>2</SUB>/M, and inhibited tumor growth in athymic nude mice bearing RKO cells as xenografts. CDODA-Me decreased expression of microRNA-27a (miR-27a), and this was accompanied by increased expression of 2 miR-27a-regulated mRNAs, namely ZBTB10 (an Sp repressor) and Myt-1 which catalyzes phosphorylation of cdc2 to inhibit progression of cells through G<SUB>2</SUB>/M. Both CDODA-Me and antisense miR-27a induced comparable responses in RKO and SW480 cells, suggesting that the potent anticarcinogenic activity of CDODA-Me is due to repression of oncogenic miR-27a. © 2009 UICC</P>
Study on BCN and BAN Ruled Surfaces in $\mathbb{E}^{3}$
Hamdy N. Abd-Ellah,Abdelrahim Khalifa Omran 강원경기수학회 2017 한국수학논문집 Vol.25 No.4
As a continuation to the study in [8, 12, 15, 17], we construct bi-conservative central normal (BCN) and bi-conservative asymptomatic normal (BAN) ruled surfaces in Euclidean 3-space $\mathbb{E}^{3}$. For such surfaces, local study is given and some examples are constructed using computer aided geometric design (CAGD).
Carbon-nanotube-based Nano Electromechanical Switches
이상욱,Anders Eriksson,Abdelrahim A. Sourab,캠벨 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.3
The fabrication of carbon nanotube (CNT) based nano electromechanical (NEM) switches and their electro-mechanical properties are discussed. Two different types of nano electromechanical switches, a cantilever type and a doubly-clamped type, will be introduced. The proposal of three terminal structures for the CNT-based NEM switch could lead to improvements in the stability of the switching performance. Both dc electro-mechanical properties and high-frequency measurements are used to study the switching performance. A comparison of the switching performances of both types of nano electromechanical switches is discussed at the end of the paper. The fabrication of carbon nanotube (CNT) based nano electromechanical (NEM) switches and their electro-mechanical properties are discussed. Two different types of nano electromechanical switches, a cantilever type and a doubly-clamped type, will be introduced. The proposal of three terminal structures for the CNT-based NEM switch could lead to improvements in the stability of the switching performance. Both dc electro-mechanical properties and high-frequency measurements are used to study the switching performance. A comparison of the switching performances of both types of nano electromechanical switches is discussed at the end of the paper.
OWAIS, Walid Omar,DAHIYAT, Ahmad Abdelrahim Korea Distribution Science Association 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.3
This paper examines the readiness of Jordanian insurance companies to apply the International Financial Reporting Standards (IFRS 17), and the challenges of its application. The study developed a questionnaire based on prior related studies, and in the light of IFRS 17, the study used different statistical methods and techniques such as means, standard deviation, and t-test to achieve its goals. The results indicate that Jordanian insurance companies are not ready to apply IFRS 17, for several reasons. Most importantly, insurance companies have a low level of ability to define the scope of IFRS 17, study the impact of IFRS 17 application to financial reports, and develop new internal monitoring methods to apply IFRS 17. As for the challenges for applying IFRS 17, the biggest is the data challenge, followed by the challenges of first-time implementation, systems, and results and presentation. Finally, this paper advocates that it has become important for Jordanian insurance companies and supervisory bodies to enhance their readiness to apply IFRS 17 within a scheduled time framework and by taking several preparatory steps: performing simulations consisting of procedures to deal with IFRS 17 requirements and the impact on financial reports, and helping human resources with familiarization and application of IFRS 17.
Reema Tayyem,Mohammed O. Ibrahim,Dana N. Abdelrahim,Abdel-Ellah Al-Shudifat,Hadeel Ghazzawi,Hiba Bawadi 한국식품영양과학회 2021 Preventive Nutrition and Food Science Vol.26 No.4
Accumulating evidence suggests that consumption of whole grains and legumes is associated with reduced risk of cardiovascular disease (CVD), whereas the risk is increased by consuming refined grains and cereals. This study aimed to investigate the association between grain and legume consumption and the risk of CVD. The study was conducted using a convenient sampling method with a total of 399 participants who underwent coronary angiography. Cases and controls were matched by age with a 1:1 ratio. Standardized and validated questionnaires were used to collect sociodemographic, health, lifestyle, and dietary data. Intake of more than 1 serving/d of white bread increased the risk of CVD significantly with an adjusted odds ratio (AOR) of 3.06 [95% confidence interval (CI): 1.37∼6.84], while consuming more than 1 serving/d of wholegrain bread reduced the risk significantly to approximately 53% (AOR: 0.47, 95% CI: 0.24 ∼0.93). Similar trends between consuming white bread on daily basis and increased risk of CVD, and consuming wholegrain bread and reduced risk of CVD were also observed. In addition, consuming unsweetened cornflakes on a weekly basis had a protective effect against CVD (AOR: 0.15, 95% CI: 0.03∼0.96). Intake of legumes reduced the risk of CVD, although only insignificantly for all the tested legumes. The present study calls for consideration of consuming wholegrain bread prevent CVD in the Jordanian population.