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The Inhibitory Role of Plant Extracts on Acrylamide Formation in Potato Chips

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Journal of Food Science and Engineering 2011年第3期1卷 214-220页

作者： A. haj Hosseini Babaei P. Qagharbeigi Department of Food Science and Chemistry Technology Danesh Mehvar Alborz Research Center Qazvin *** Iran Department of Food Safety and Quality Control Faculty of Veterinary Tehran University Qazvin *** Iran

This paper investigated the efficiency of antioxidant of Thyme and extract of cumin on the reduction of acrylamide in potato chips and summarized the optimal levels of two additives. Seven experimental groups includin... 详细信息

关键词： Acrylamide potato chips reduction antioxidant of thyme extract of cumin.

Metaheuristic Based Data Gathering Scheme for Clustered UAVs in 6G Communication Network

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Computers, Materials & Continua 2022年第6期71卷 5311-5325页

作者： Ahmed S.Almasoud Siwar Ben haj Hassine Nadhem NEMRI Fahd N.Al-Wesabi Manar Ahmed Hamza Anwer Mustafa Hilal Abdelwahed Motwakel Mesfer Al Duhayyim Department of Information Systems College of Computer and Information SciencesPrince Sultan UniversitySaudi Arabia Department of Computer Science College of Science&Arts at MahayilKing Khalid UniversitySaudi Arabia Faculty of Computer and IT Sana’a UniversitySana’aYemen Department of Computer and Self Development Preparatory Year DeanshipPrince Sattam bin Abdulaziz UniversityAlKharjSaudi Arabia Department of Natural and Applied Sciences College of Community-AflajPrince Sattam bin Abdulaziz UniversitySaudi Arabia

The sixth-generation(6G)wireless communication networks are anticipated in integrating aerial,terrestrial,and maritime communication into a robust system to accomplish trustworthy,quick,and low latency *** enables to achieve maximum throughput and delay for several ***,the evolution of 6G leads to the design of unmanned aerial vehicles(UAVs)in providing inexpensive and effective solutions in various application areas such as healthcare,environment monitoring,and so *** the UAV network,effective data collection with restricted energy capacity poses a major issue to achieving high quality network *** can be addressed by the use of clustering techniques forUAVs in 6G *** this aspect,this study develops a novel metaheuristic based energy efficient data gathering scheme for clustered unmanned aerial vehicles(MEEDG-CUAV).The proposed MEEDG-CUAV technique intends in partitioning the UAV networks into various clusters and assign a cluster head(CH)to reduce the overall energy ***,the quantum chaotic butterfly optimization algorithm(QCBOA)with a fitness function is derived to choose CHs and construct *** experimental validation of the MEEDG-CUAV technique occurs utilizing benchmark dataset and the experimental results highlighted the better performance over the other state of art techniques interms of different measures.

关键词： 6G network mobile communication uav networks energy efficiency clustering metaheuristics

A Blind DWT-SCHUR Based Digital Video Watermarking Technique

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Journal of Software Engineering and Applications 2015年第4期8卷 224-233页

作者： Lama Rajab Tahani Al-khatib Ali Al-haj Computer Information Systems The University of Jordan Amman Jordan Princess Sumaya University for Technology Amman Jordan

Digital watermarking is one of the most powerful tools used in ownership and copyrights protection in digital media. This paper presents a blind digital video watermarking technique based on a combination scheme between the Discrete Wavelet transform in (DWT) and the real Schur Decomposition. The scheme starts with applying twolevel DWT to the video scene followed by Schur decomposition in which the binary watermark bits are embedded in the resultant block upper triangular matrix. The proposed technique shows high efficiency due to the use of Schur decomposition which requires fewer computations compared to other transforms. The imperceptibility of the scheme is also very high due to the use of DWT transform;therefore, no visual distortion is noticed in the watermarked video after embedding. Furthermore, the technique proves to be robust against set of standard attacks like: Gaussian, salt and pepper and rotation and some video attacks such as: frame dropping, cropping and averaging. Both capacity and blindness features are also considered and achieved in this technique.

关键词： Video Watermarking Schur Decomposition Discrete Wavelet Transform (DWT)

Potential role of NkT regulatory cell ligands for the treatment of immune mediated colitis

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World Journal of Gastroenterology 2007年第44期13卷 5799-5804页

作者： Madi El haj Ami Ben Ya'acov Gadi Lalazar Yaron Ilan Liver Unit Department of Medicine Hebrew University-Hadassah Medical Center Jerusalem Israel

Natural killer T lymphocytes （NkT） have been implicated in the regulation of autoimmune processes in both mice and humans. In response to stimuli, this subset of cells rapidly produces large amounts of cytokines thereby provoking immune responses, including protection against autoimmune diseases. NkT cells are present in all lymphoid compartments, but are most abundant in the liver and bone marrow. They are activated by interaction of their T-cell receptor with glycolipids presented by CDld, a nonpolymorphic, major histocompatibility complex class I-like molecule expressed by antigen presenting cells. Several possible ligands for NkT cells have recently been suggested. β-glucosylceramide, a naturally occurring glycolipid, is a metabolic intermediate in the anabolic and catabolic pathways of complex glycosphingolipids. Like other β-glycolipids, β-glucosylceramide has an immunomodulatory effect in several immune mediated disorders, including immune mediated colitis. Due to the broad impact that NkT cells have on the immune system, there is intense interest in understanding how NkT cells are stimulated and the extent to which NkT cell responses can be controlled. These novel ligands are currently being evaluated in animal models of colitis. Here, we discuss strategies to alter NkT lymphocyte function in various settings and the potential clinical applications of natural glycolipids.

关键词： Natural killer T lymphocyte, Immunomodulatory Colitis Inflammatory bowel disease, Ligand

Determination of the antioxidant activity based on the content changes in fatty acid methyl esters in vegetable oils

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Journal of Chinese Pharmaceutical Sciences 2014年第12期23卷 873-877页

作者： Housam haj Hamdo Zaid Al-Assaf Warid khayata Department of Analytical and Food Chemistry Faculty of Pharmacy Aleppo University Department of Analytical and Food Chemistry Faculty of Pharmacy Damascu University

Free radicals, which are generated in several biochemical reactions in the body, have been implicated as mediators of many diseases, including cancer, atherosclerosis and heart diseases. Although the endogenous antioxidants can scavenge these free radicals, they are often insufficient to maintain the in vivo redox balance. The antioxidant activity(AOA) was examined by addition of each tested antioxidants [alpha-tocopherol(α-T), beta-tocopherol(β-T), gamma-tocopherol(γ-T), delta-tocopherol(δ-T), butylated hydroxyanisole(BHA), 2,6-di-tert-butyl-4-methylphenol(BHT), and ascorbyle palmitate(AP)] to four types of different vegetable oils(sunflower oil, soybean oil, corn oil and olive oil). Moreover, content changes in fatty acids were then investigated every 3 months during the storage period. The results showed that the AOA was different among the tested antioxidants. The AOA for BHA was the most for different types of oil compared with other antioxidants, whereas the δ-T possessed the lowest AOA.

关键词： Antioxidant Activity Vegetable oil FAMEs Tocopherol

Expression of bc(?)-2 gene family during resection induced liver regeneration:Comparison between hepatectomized and sham groups

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World Journal of Gastroenterology 2004年第2期10卷 279-283页

作者： kamil Can Akcali Aydin Dalgic Ahmet Ucar khemaeis Ben haj Dilek Guvenc Department of Molecular Biology and Genetics Bilkent UniversityAnkara 06800Turkey Department of Surgery Gazi University Medical SchoolAnkara 06510Turkey Department of Mathematics Bilkent UniversityAnkara 06800Turkey

AIM:During liver regeneration cellular proliferation and apoptosis result in tissue remodeling to restore normal hepatic mass and *** regulators of the apoptotic machinery are the Bcl-2 family proteins but their roles are not well defined throughout the liver *** aimed to analyze the expression levels of bcl-2gene family members during resection induced liver regeneration. METHODS:We performed semi-quantitative RT-PCR to examine the expression level of bak,bax,bcl-2 and bcl-x_L in 70% hepatectomized rat livers during the whole regeneration process and compared to that of the sham and normal groups. RESULTS:The expression of bak and bax was decreased whereas that of bcl-2and bd-X_L was increased in hepatectomized animals compared to normal liver at most time *** also reported for the first time that sham group of animals had statistically significant higher expression of bak and bax than hepatectomized *** addition,the area under the curve (AUC) values of these genes was larger in sham groups than the hepatectomized groups. CONCLUSION:The expression changes of bak,bax,bcl-2 and bcl-X_L genes are altered not only due to regeneration, but also due to effects of surgical operations.

关键词： Bcl-2基因肝切除术肝再生细胞增殖细胞凋亡逆转录聚合酶链反应

Fabrication, Characterization and Optical Properties of CuIn<sub>3</sub>Se<sub>5</sub>Bulk Compounds

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World Journal of Condensed Matter Physics 2015年第3期5卷 201-208页

作者： Dayane Habib Ouloum Aoudé Slyman karishy Georges El haj Moussa Physics Department Faculty of Sciences II Lebanese University Jdeidet Lebanon Physics Department Faculty of Sciences IV Lebanese University Zahleh Lebanon Centre Electronique et Micro-optoélectronique de Montpellier (CEM2) Faculté Sciences et Techniques du Languedoc Université de Montpellier II Montpellier France

The present work prepared the CuIn3Se5 ingots by using a horizontal Bridgman method and investigated the Energy Dispersive Spectrometry (EDS) and X-Ray Diffraction (XRD) to calculate the compositions of the ingots. Photoluminescence was used to check their optical properties. It was found that CuIn3Se5 had either a Stanite structure, an Ordered Defect Chalcopyrite (ODC) structure, or an Ordered Vacancy Chalcopyrite (OVC) structure. The gap energy obtained by Photoluminescence (PL) for the different samples is 1.23 eV. Studying the variation of the gap as a function of the temperature shows that the transition is a D-A type.

关键词： Chalcopyrite Photovoltaic Photoluminescence Optical Response X-Ray Diffraction

An Algorithm for Robust Routing Strategies in Networks

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Journal of Traffic and Transportation Engineering 2017年第1期5卷 8-20页

作者： Farida Manseur Nadir Farhi Habib haj-Salem Jean Patrick-Lebacque University of Paris-Est IFSTTAR/COSYS/GRETTIA F-77447 Champs-sur Marne Cedex France

In this article, the authors address the problem of optimal guidance of road network users. In the literature, several routing algorithms have been proposed under different approaches to solve this problem. Most adaptive algorithms for optimal path are based on the least expected travel time. Another approach has emerged named the SOTA （stochastic on time arrival）. This approach based on the idea of Frank （1969）, which aims to maximize the probability of arriving to a destination node parting from a given node in the network and with a given time budget. The authors＇ contribution consists here in extending this approach in order to introduce robustness towards path failure, in the guidance optimization. The authors propose a model that includes the existence as well as the performance of detours for selected paths, in the calculus of the travel time reliability. This new way of calculating travel time reliability guarantees a kind of robustness of the optimal guidance strategy.

关键词： Optimal guidance travel-time reliability robustness optimization traffic control.

Interferon-λ polymorphisms and response to pegylated interferon in Iranian hepatitis C patients

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World Journal of Gastroenterology 2015年第29期21卷 8935-8942页

作者： Arghavan haj-sheykholeslami Maryam keshvari Heidar Sharafi Ali Pouryasin khalil Hemmati Fatemeh Mohammadzadehparjikolaei The Liver Pancreatic and Biliary Diseases Research Center Digestive Diseases Research Institute Tehran University of Medical Sciences Blood Transfusion Research Center High Institute for Research and Education in Transfusion Medicine Middle East Liver Disease Center Armin Pathobiology Laboratory

AIM: To evaluate the efficacy of pegylated interferon in Iranian chronic hepatitis C patients in relation to interferon-λ(IFNL) polymorphisms. METHODS: This study enrolled patients with chronic hepatitis C referred to the Tehran Blood Transfusion Hepatitis Clinic in 2011. Patients were included in the study if they had no concomitant hepatic illness, were negative for human immunodeficiency virus antibodies, and had no prior history of treatment with any type ofpegylated interferon. Patients were treated with 180 μg pegylated interferon alpha-2a(Pegaferon®) weekly and 800-1200 mg ribavirin daily for 24 or 48 wk depending on weight and hepatitis C virus(HCV) genotype. Blood samples were collected from patients to obtain DNA for determination of IFNL rs12979860 and rs8099917 polymorphisms. The virologic response in patients was then evaluated and compared between the different IFNL ***: A total of 152 patients with a mean age of 41.9 ± 10.0 years were included in the study, of which 141/152 were men(92.8%). The most frequent HCV genotype was type-1, infecting 93/152(61.2%) patients. Sustained virologic response(SVR) was achieved in 81.9% of patients with HCV genotype-1 and 91.1% of patients with HCV genotype-3. Treatment success was achieved in 91.2%(52/57) of patients with the IFNL rs12979860 CC genotype and 82.1%(78/95) in those with other genotypes. Similar treatment response rates were also observed in patients with rs8099917 TT(39/45; 86.7%) and non-TT(61/68; 89.7%) genotypes. Univariate analyses identified the following factors which influenced treatment response for inclusion in a multivariate analysis: age, HCV RNA level, stage of liver fibrosis, rs12979860 CC genotype, and aspartate transaminase level. A logistic regression analysis revealed that only the rs12979860 CC genotype was significantly associated with achievement of SVR(OR = 6.2; 95%CI: 1.2-31.9; P = 0.03).CONCLUSION: The rs12979860 CC genotype was associated with SVR in patients

关键词： Chronic hepatitis C Pegylated interferon rs12979860 rs8099917 Sustained virologic response