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Computer Modeling in Engineering & Sciences 2023年第9期136卷 3121-3139页

作者： Rania Saadeh Ahmad Qazza aliaa burqan Shrideh Al-Omari Department of Mathematics Zarqa UniversityZarqa13110Jordan Department of Mathematics Faculty of ScienceAl-Balqa Applied UniversityAmman11134Jordan

This paper aims to investigate a new efficient method for solving time fractional partial differential *** this orientation,a reliable formable transform decomposition method has been designed and developed,which is a novel combination of the formable integral transform and the decomposition ***,certain accurate solutions for time-fractional partial differential equations have been *** under concern demandsmore simple calculations and fewer efforts compared to the ***,the posed formable transformdecompositionmethod has been utilized to yield a series solution for given fractional partial differential ***,several interesting formulas relevant to the formable integral transform are applied to fractional operators which are performed as an excellent application to the existing ***,the formable transform decomposition method has been employed for finding a series solution to a time-fractional Klein-Gordon *** and above,some numerical simulations are also provided to ensure reliability and accuracy of the new approach.

关键词： Caputo derivative fractional differential equations formable transform time-fractional klein-gordon equation decomposition method

Predicting the impacts of climate change on the distribution of Moringa peregrina(Forssk.)Fiori-A conservation approach

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Journal of Mountain Science 2021年第5期18卷 1235-1245页

作者： Emad A.FARAHAT aliaa M.REFAAT Botany and Microbiology Department Faculty of ScienceHelwan UniversityCairo 11795Egypt Botany Department Faculty of ScienceAin Shams UniversityCairo 11566Egypt

Climate change will affect the geographic distribution and richness of species at different spatial and temporal *** applied Maximum entropy(MaxEnt)modeling to predict the potential influence of climatic change on the current and future distribution of the important mountainous tree species Moringa peregrina(Forssk.)*** Maxent model performed better than random models for the species with the training and test AUC(Area Under the receiver-operating characteristic Curve)values of 0.96 and 0.90,*** test and response curves showed that the distribution of the species negatively correlates with higher altitudes and precipitation in October and ***,it positively correlates with the total annual precipitation and precipitation in *** current and future climatic conditions,our model predicted habitat gains for *** towards the coastal northern and southern limits of its *** potentially suitable habitats,under future climate projections,are currently characterized by elevations of<1000 m *** total annual precipitation of 80-225 mm/*** and high potential habitat suitability will increase by 5.6%-6%and 2.1%-2.3%,under RCP2.6 and RCP4.5 scenario,*** results indicated that the habitat suitability of *** would increase with increasing climate warming,particularly under RCP2.6 *** recommend sustainable conservation and cultivation of Moringa peregrina in its current habitats along the Red Sea mountains.

关键词： Climate change Conservation Max Ent Mountains Moringa peregrina Arid lands

Geoaccumulation and distribution of heavy metals in the urban river sediment

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International Journal of Sediment Research 2014年第3期29卷 368-377页

作者： Nur aliaa SHAFIE Ahmad Zaharin ARIS Hazzeman HARIS Environmental Forensics Research Centre Faculty of Environmental StudiesUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia

Current study presents the application of chemometric techniques to comprehend the interrelations among sediment variables whilst identifying the possible pollution source at Langat River,*** sediment samples（0-10 cm）were collected at 22 sampling stations and analyzed for total metals(48Cd,29Cu,30Zn,82Pb),pH,redox potential（Eh）,salinity,electrical conductivity（EC）,loss on ignition（LOI）and cation exchange capacity（CEC）.The principal component analysis（PCA）scrutinized the origin of environmental pollution by various anthropogenic and natural activities:four principal components were obtained with 86.34%（5 cm）and88.34%（10 cm）.Standard,forward and backward stepwise discriminant analysis effectively discriminate 2variables（84.06%）indicating high variation of heavy metals accumulation at both *** cluster analysis accounted for high input of Zn and Pb at LA8,LA 10,LA 11 and LA 12 that mergers three（5 cm）and four（10cm）into *** is consistent with the contamination factor（C1）that shows high Cd（LA 1）and Pb（LA 7,LA 8,LA 10,LA 11 and LA 12）contaminations at *** indicate that Pb and Zn are the most bioavailable metals in the sediment with significant positive linear relationship at both sediment ***,this approach is a good indication of environmental pollution status that transfers new findings on the assessment of heavy metals by interpreting large complex datasets and predicting the fate of heavy metals in the sediment.

关键词： Heavy metals Principal Component Analysis Cluster Analysis River Sediment

An Energy-Efficient Wireless Power Transmission-Based Forest Fire Detection System

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Computers, Materials & Continua 2022年第7期72卷 441-459页

作者： Arwa A.Mashat Niayesh Gharaei aliaa M.Alabdali Faculty of Computing&Information Technology King Abdulaziz UniversityRabigh21911Saudi Arabia

Compared with the traditional techniques of forest fires detection,wireless sensor network(WSN)is a very promising green technology in detecting efficiently the ***,the power constraint of sensor nodes is one of the main design limitations of WSNs,which leads to limited operation time of nodes and late fire *** the past years,wireless power transfer(WPT)technology has been known as a proper solution to prolong the operation time of sensor *** WPT-based mechanisms,wireless mobile chargers(WMC)are utilized to recharge the batteries of sensor nodes ***,the energy of WMC is provided using energy-harvesting or energy-scavenging techniques with employing huge,and expensive ***,the high price of energy-harvesting devices hinders the use of this technology in large and dense networks,as such networks require multiple WMCs to improve the quality of service to the sensor *** solve this problem,multiple power banks can be employed instead of utilizing ***,the long waiting time of critical sensor nodes located outside the charging range of the energy transmitters is another limitation of the previous ***,the sensor nodes are equipped with radio frequency(RF)technology,which allows them to exchange energy ***,critical sensor nodes located outside the charging range of the WMC can easily receive energy from neighboring ***,in this paper,an energy-efficient and cost-effective wireless power transmission(ECWPT)scheme is presented to improve the network lifetime and performance in forest fire detection-based *** results exhibit that ECWPT scheme achieves improved network performance in terms of computational time(12.6%);network throughput(60.7%);data delivery ratio(20.9%);and network overhead(35%)as compared to previous related *** conclusion,the proposed scheme significantly improves network energy efficiency for WSN.

关键词： Forest fire detection rechargeable wireless sensor networks wireless mobile charger power constraint sustainable network lifetime

Hybrid Feature Selection Method for Predicting Alzheimer’s Disease Using Gene Expression Data

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Computers, Materials & Continua 2023年第3期74卷 5559-5572页

作者： aliaa El-Gawady BenBella S.Tawfik Mohamed A.Makhlouf Department of Information Systems Faculty of Computers and InformaticsSuez Canal UniversityIsmailia41522Egypt Faculty of Computer Science Nahda UniversityBeni SuefEgypt

Gene expression(GE)classification is a research trend as it has been used to diagnose and prognosis many *** machine learning(ML)in the prediction of many diseases based on GE data has been a flourishing research ***,some diseases,like Alzheimer’s disease(AD),have not received considerable attention,probably owing to data scarcity *** this work,we shed light on the prediction of AD from GE data accurately using *** approach consists of four phases:preprocessing,gene selection(GS),classification,and performance *** the preprocessing phase,gene columns are preprocessed *** the GS phase,a hybrid filtering method and embedded method are *** the classification phase,three ML models are implemented using the bare minimum of the chosen genes obtained from the previous *** final phase is to validate the performance of these classifiers using different *** crux of this article is to select the most informative genes from the hybrid method,and the best ML technique to predict AD using this minimal set of *** different datasets are used to achieve our *** predict AD with impressive values forMultiLayer Perceptron(MLP)classifier which has the best performance metrics in four datasets,and the Support Vector Machine(SVM)achieves the highest performance values in only one *** assessed the classifiers using sevenmetrics;and received impressive results,allowing for a credible performance *** metrics values we obtain in our study lie in the range[.97,.99]for the accuracy(Acc),[.97,.99]for F1-score,[.94,.98]for kappa index,[.97,.99]for area under curve(AUC),[.95,1]for precision,[.98,.99]for sensitivity(recall),and[.98,1]for *** these results,the proposed approach outperforms recent interesting *** these results,the proposed approach outperforms recent interesting results.

关键词： Gene expression gene selection machine learning classification Alzheimer’s disease

Microalbuminuria in hepatitis C-genotype 4:Effect of pegylated interferon and ribavirin

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World Journal of Gastroenterology 2010年第10期16卷 1226-1231页

作者： Moutaz Derbala Fatma M Shebl Awad Rashid aliaa Amer Abdulbari Bener Department of Gastroenterology and Hepa-tology Hamad Medical Corporation Department of Medicine Weill Cornell Medical College in Qatar Infections & Immunoepidemiology Branch Division of Cancer Epidemiology and GeneticsNational Cancer Institute Epidemiology Branch National Liver Institute Department of Nephrology Hamad Medical Corporation Department of Laboratory Medicine and Histo-pathology Hematology SectionHamad Medical Corporation Department of Medical Statistics and Epidemiology Hamad Medical Corporation

AIM:To study the relation between hepatitis C virus (HCV) genotype 4 and microalbuminuria and renal impairment in relation to hepatic histology, and viremia in the absence of cryoglobulinemia, and to examine the effect of treatment on ***: Three hundred subjects, including 233 HCV genotype-4 infected patients, were tested for cryoglobulinemia, microalbuminuria, albumin creatinine ratio (ACR), urea, creatinine, and estimated glomerular filtration rate (eGFR). The parameters were measured again in the HCV patients after 48 wk of treatment with pegylated interferon and ***: Significantly higher levels of microalbumin- uria were detected in HCV-positive patients compared to HCV-negative controls (median 9.5 vs 5.9, respectively, Kruskal-Wallis P=0.017). Log microalbuminuria was significantly correlated with hepatic inflammation (r=0.13, P=0.036) and f ibrosis (r=0.12, P=0.061), but not with viral load (r=-0.03, P=0.610), or alanine transaminase (r=-0.03, P=0.617). Diabetes mellitus neither significantly moderated (χ2=0.13, P=0.720), nor mediated (Sobel test P=0.49) the HCV effect. HCV status was signifi cantly associated with log microalbu-minuria (χ2=4.97, P=0.026), adjusting for age, gender, diabetes, cryoglobulinemia, urea and creatinine. A positive HCV status was not significantly associated with low eGFR (<60 mL/min every 1.73 m2) [odds ratio (OR): 0.5, 95% confidence interval (CI):0.2-1.4], nor with high ACR (OR: 1.7, 95% CI:0.7-4.1). End-of-treatment response (ETR) was achieved in 51.9% of patients. Individuals with ETR had significantly lower microalbuminuria post-treatment (χ2=8.19, P=0.004).CONCLUSION: HCV affected the development of microalbuminuria independent of diabetes or cryoglobulinemia. Combination therapy of pegylated interferon-ribavirin had a positive effect in reducing microalbuminuria.

关键词： Hepatitis C virus Genotype Kidney diseases Albuminuria Proteinuria Peginterferon α-2a Ribavirin

Buffalo stirred yoghurt fortified with grape seed extract:New insights into its functional properties

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Food Bioscience 2022年第3期47卷 1330-1336页

作者： Suzan H.Tami Esmat Aly aliaa A.Darwish Esmat S.Mohamed Department of Clinical Nutrition College of Applied Medical SciencesKing Faisal UniversitySaudi Arabia Dairy Research Department Food Technology Research InstituteAgricultural Research Center12613GizaEgypt Biotechnology Department Higher Institute for Agriculture Co-Operation13766ShobraCairoEgypt

Grape seed extract(GSE)is considered one of the major byproducts,which are rich in phenolic content and possess several health-promoting activities including antibacterial,anticancer,and *** current research was devoted to improve the bioactive properties of stirred yoghurt through supplementation with GSE at three concentrations(0.1,0.25,and 0.5 g/100 g yoghurt).The obtained stirred yoghurts were analyzed for determining their composition,pH,syneresis,viscosity,and sensory ***,some functional properties including antioxidant,antibacterial,anticancer activities were *** increments(p≤0.05)were observed in total solids,ash contents,pH,water holding capacity,and viscosity values,especially when 0.5%GSE was ***,adding 0.5%GSE showed higher(p≤0.05)in vitro antioxidant,antibacterial,and anticancer ***,the improved bioactive properties resulting from adding GSE,even at the higher concentration,were not accompanied by any change in sensory *** particular,the color descriptor was mostly preferred by panelists when 0.5%GSE was *** assessors did not observe any off-flavors in any of the tested stirred yoghurt ***,the functional properties of stirred yoghurt could be improved by adding GSE preparation without affecting its organoleptic properties.

关键词： Stirred yoghurt Grape seed extract Bioactive properties Antibacterial and anticancer activities Antioxidant

Culture and identification of neonatal rat brain-derived neural stem cells

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World Journal of Stem Cells 2023年第6期15卷 607-615页

作者： Qing-Zhong Zhou Xiao-Lan Feng Xu-Feng Jia Nurul Huda Binti Mohd Nor Mohd Hezery Bin Harun Da-Xiong Feng Wan aliaa Wan Sulaiman Department of Orthopedics The Affiliated Hospital of Southwest Medical UniversityLuzhou 646000Sichuan ProvinceChina Department of Neurology Faculty of Medicine and Health SciencesUniversiti Putra MalaysiaSerdang 43400SelangorMalaysia Department of Radiology The Affiliated Hospital of Southwest Medical UniversityLuzhou 646000Sichuan ProvinceChina Department of Orthopedics The Peoples’Hospital of Jianyang CityJianyang 641400Sichuan ProvinceChina Department of Human Anatomi Faculty of Medicine and Health SciencesUniversiti Putra MalaysiaSerdang Selangor43400Malaysia Department of Orthopedics Faculty of Medicine and Health SciencesUniversiti Putra MalaysiaSerdang 43400SelangorMalaysia

BACKGROUND Timing of passaging,passage number,passaging approaches and methods for cell identification are critical factors influencing the quality of neural stem cells(NSCs)*** to effectively culture and identify NSCs is a continuous interest in NSCs study while these factors are comprehensively *** To establish a simplified and efficient method for culture and identification of neonatal rat brain-derived *** First,curved tip operating scissors were used to dissect brain tissues from new born rats(2 to 3 d)and the brain tissues were cut into approximately 1 mm^(3)*** the single cell suspension through a nylon mesh(200-mesh)and culture the sections in *** was conducted with TrypLTM Express combined with mechanical tapping and pipetting ***,identify the 5th generation of passaged NSCs as well as the revived NSCs from *** incorporation method was used to detect self-renew and proliferation capabilities of *** NSCs specific antibodies(anti-nestin,NF200,NSE and GFAP antibodies)were used to identify NSCs specific surface markers and muti-differentiation capabilities by immunofluorescence *** Brain derived cells from newborn rats(2 to 3 d)proliferate and aggregate into spherical-shaped clusters with sustained continuous and stable *** BrdU was incorporated into the 5th generation of passaged cells,positive BrdU cells and nestin cells were observed by immunofluorescence *** induction of dissociation using 5%fetal bovine serum,positive NF200,NSE and GFAP cells were observed by immunofluorescence *** This is a simplified and efficient method for neonatal rat brain-derived neural stem cell culture and identification.

关键词： Neonatal rats Brain-derived neural stem cells Culture Identification

Aspartate transaminase to platelet ratio index in hepatitis C virus and Schistosomiasis coinfection

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World Journal of Gastroenterology 2015年第46期21卷 13132-13139页

作者： Moutaz Derbala Mohammed Elshiekh Elbadri aliaa Mohamed Amer Saad Al Kaabi Khaleel Hassan Sultan Yasser Medhat Kamel Eman Hassan Satti Elsayed Tony Yervant Avades Prem Chandra Fatma M Shebl Gastroenterology and Hepatology Hamad Medical CorporationHamad General Hospital Gastroenterology and Hepatology Theodor Bilharz Research Institute Medical Department Weill Cornell Medical College Laboratory Medicine and pathology Hematology SectionHamad Medical CorporationHamad General Hospital General Medicine Medical EducationHamad Medical CorporationHamad General Hospital Department of Laboratory Medicine and Pathology Hamad Medical CorporationHamad General Hospital Medical Research Center Hamad Medical CorporationHamad General Hospital Chronic Disease Epidemiology DepartmentYale School of Public Health

AIM: To assess the diagnostic accuracy,of aminotransferase-to-platelet ratio index(APRI) alone and with antischistosomal antibody(Ab) in patients with hepatitis C virus(HCV) and schistosomiasis coinfection. METHODS: This retrospective study included medical records of three hundred and eighty three Egyptianmen patients who had undergone percutaneous liver biopsy between January 2006 to April 2014 in tertiary care hospital in Qatar for diagnosis or monitoring purpose were selected. Data of patients > 18 years of age were included in the study. The values of HCV RNA titer and antischistosomal antibody titer were also taken into consideration. Patients were excluded from the study if they had any other concomitant chronic liver disease,including; history of previous antiviral or interferon therapy,immunosuppressive,therapy,chronic hepatitis B infection,human immunodeficiency virus co-infection,autoimmune hepatitis,decompensated liver disease,hepatocellular carcinoma,prior liver transplantation,and if no data about the liver biopsy present. RESULTS: Median age of patients was 46 years. About 7.1% had no fibrosis,whereas 30.4%,37.5%,20.4%,and 4.6% had fibrosis of stage Ⅰ,Ⅱ,Ⅲ,and Ⅳ respectively. In bivariate analysis,APRI score,levels of AST,platelet count and age of patient showed statistically significant association with liver fibrosis(P < 0.0001); whereas antischistosomal antibody titer(P = 0.52) and HCV RNA titer(P = 0.79) failed to show a significant association. The respective AUC values for no fibrosis,significant fibrosis,severe fibrosis and cirrhosis of APRI score were 63%,73.2%,81.1% and 88.9% respectively. This showed good sensitivity and specificity of APRI alone for grading of liver fibrosis. But the inclusion of anti-Schistosoma antibody did not improve the prediction of fibrosis stage. CONCLUSION: The study results suggest that noninvasive biochemical markers like APRI are sensitive and specific in diagnosing the degree of fibrosis and cirrhosis in patient

关键词： Hepatitis C Schistosomiasis Aspartate transaminase

Energy Efficient and QoS Aware Framework for Video Transmission over Wireless Sensor Networks

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Wireless Sensor Network 2016年第3期8卷 25-36页

作者： Mohammed Ezz El Dien aliaa A. A. Youssif Atef Zaki Ghalwash Department of Computer Science Helwan University Greater Cairo Egypt

Wireless Multimedia Sensor Networks (WMSNs), is a network of sensors, which are limited in terms of memory, computing, bandwidth, and battery lifetime. Multimedia transmission over WSN requires certain QoS guarantees such as huge amount of bandwidth, strict delay and lower loss ratio that makes transmitting multimedia is a complicated task. However, adopting cross-layer approach in WMSNs improves quality of service of WSN under different environmental conditions. In this work, an energy efficient and QoS aware framework for transmitting multimedia content over WSN (EQWSN) is presented, where packet, queue and path scheduling were introduced. It adapts the application layer parameter of video encoder to current wireless channel state, and drops less important packets in case of network congestion according to packet type. Finally, the path scheduling differentiates packets types/priority and route them through different paths with different QoS considering network lifetime. Simulation results show that the new scheme EQWSN transmits video quality with QoS guarantees in addition to prolonging network lifetime.

关键词： Wireless Multimedia Sensor Networks Cross Layer Design GOP Structure Analysis Packet Scheduling Queue Scheduling Path Scheduling