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燃料化学学报 2012年第7期40卷 822-830页

作者： Wan Azelee Wan Abu Bakar Rusmidah Alil abdul aziz abdul Kadir Salmiah Jamal Mat Rosid Nurul Shafeeqa Mohammad Department of Chemistry Faculty of Science Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia Faculty of Petroleum and Renewable Energy Engineering Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia

A series of alumina supported cobalt oxide based catalysts doped with noble metals such as ruthenium and platinum were prepared by wet impregnation *** variables studied were difference ratio and calcination ***/Co(10∶90)/Al2O3 catalyst calcined at 700 ℃ was found to be the best catalyst which able to convert 70.10% of CO2 into methane with 47% of CH4 formation at maximum temperature studied of 400 ℃.X-ray diffraction analysis showed that this catalyst possessed the active site Co3O4 in face-centered cubic and PtO2 in the orthorhombic phase with Al2O3 existed in the cubic *** to the FESEM micrographs,both fresh and spent Pt/Co(10∶90)/Al2O3 catalysts displayed small particle size with undefined *** Adsorption analysis showed that 5.50% reduction of the total surface area for the spent Pt/Co(10∶90)/Al2O3 ***,Energy Dispersive X-ray analysis(EDX) indicated that Co and Pt were reduced by 0.74% and 0.14% respectively on the spent Pt/Co(10∶90)/*** using FT-IR and TGA-DTA analysis revealed the existence of residual nitrate and hydroxyl compounds on the Pt/Co(10∶90)/Al2O3 catalyst.

关键词： natural gas cobalt oxide noble metal catalyst methanation reaction

Evolution of specific RNA aptamers via SELEX targeting recombinant human CD36 protein:A candidate therapeutic target in severe malaria

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Asian Pacific Journal of Tropical Biomedicine 2020年第1期10卷 23-32页

作者： Nik abdul aziz Nik Kamarudin Judy Nur Aisha Sat Nur Fatihah Mohd Zaidi Khairul Mohd Fadzli Mustaffa Institute for Research in Molecular Medicine(INFORMM) Health CampusUniversiti Sains Malaysia16150Kubang KerianKelantanMalaysia

Objective:To isolate and characterize RNA aptamers that are specific to human CD36 protein using systematic evolution of ligands by exponential enrichment(SELEX)technology to identify candidates for adjunct therapy to reverse the binding of Plasmodiuminfected ***:RNA aptamers were isolated using nitrocellulose membrane-based SELEX and binding analysis was screened using an electrophoretic mobility shift assay and enzyme-linked oligonucleotide ***:Thirteen cycles of nitrocellulose membrane-based SELEX yielded three aptamers(RC60,RC25,RC04)exhibiting high binding against CD36 protein as shown on electrophoretic mobility shift *** sequence analysis revealed a G-quadruplex sequence within all the isolated aptamers that might contribute to aptamer binding and thermodynamic *** specificity assay further showed that RC60 and RC25 were highly specific to *** competitive inhibition assay demonstrated that RC60 and RC25 shared a similar binding epitope recognized by m Ab FA6-152,a specific monoclonal antibody against ***:RC60 and RC25 are promising candidates as anticytoadherence for severe malaria adjunct therapy.

关键词： RNA aptamers SELEX CD36 protein Severe malaria Adjunct therapy Cytoadherence

Experimental investigation of the effects of various parameters on viscosity reduction of heavy crude by oil-water emulsion

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Petroleum Science 2015年第1期12卷 170-176页

作者： Talal Al-Wahaibi Yahya Al-Wahaibi abdul-aziz R.Al-Hashmi Farouq S.Mjalli Safiya Al-Hatmi Petroleum & Chemical Engineering Department College of Engineering Sultan Qaboos University

The effects of water content, shear rate, temperature, and solid particle concentration on viscosity reduction （VR） caused by forming stable emulsions were investigated using Omani heavy crude oil. The viscosity of the crude oil was initially measured with respect to shear rates at different temperatures from 20 to 70℃. The crude oil exhibited a shear thinning behavior at all the temperatures. The strongest shear thinning was observed at 20℃. A non-ionic water soluble surfactant （Triton X-100） was used to form and stabilize crude oil emulsions. The emulsification process has significantly reduced the crude oil viscosity. The degree of VR was found to increase with an increase in water content and reach its maximum value at 50 % water content. The phase inversion from oil- oil emulsion occurred at 30 in-water emulsion to water-in- % water content. The results indicated that the VR was inversely proportional to temperature and concentration of silica nanoparticles. For water-in-oil emulsions, VR increased with shear rate and eventually reached a plateau at a shear rate of around 350 s^-1. This was attributed to the thinning behavior of the continuous phase. The VR of oil-in-water emulsions remained almost constant as the shear rate increased due to the Newtonian behavior of water, the continuous phase.

关键词： Viscosity reduction Phase inversion Non-newtonian fluid Oil-in-water emulsions Heavy crude oil

Dosimetric Characteristics of a LKB:Cu,Mg Solid Thermoluminescence Detector

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Chinese Physics Letters 2013年第1期30卷 191-194页

作者： Yasser Saleh Mustafa Alajerami Suhairul Hashim Ahmad Termizi Ramli Muneer aziz Saleh Ahmad Bazlie Bin abdul Kadir Mohd.Iqbal Saripan Department of Physics Universiti Teknologi Malaysia81310 SkudaiJohorMalaysia Department of Medical Radiography Al-Azhar UniversityGaza StripPalestine Secondary Standard Dosimetery Laboratory Malaysian Nuclear Agency4300 Kajang SelangorMalaysia Faculty of Engineering Universiti Putra Malaysia43400 SerdangSelangorMalaysia

We present the main thermoluminescence characteristics of a newly borate glass dosimeter modified with lithium and potassium carbonate(LKB)and co-doped with CuO and *** enhancement of about three times has been shown with the increment of 0.1mol%MgO as a co-dopant *** effects of dose linearity,storage capacity,effective atomic number and energy dose response are *** proposed dosimeter shows a simple glow curve,good linearity up to 10^(3) Gy,close effective atomic number and photon energy *** current results suggest using the proposed dosimeter in different dosimetric applications.

关键词： independence increment potassium

Understanding bat ecosystem services on a global scale requires caution and wider collaboration:a critical evaluation of Ramírez-Fráncel et al.(2022)

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Integrative Zoology 2023年第2期18卷 385-390页

作者： Krizler C.TANALGO Kim MCCONKEY Paul RACEY Sheema abdul aziz Tuanjit SRITONGCHUAY Alice CHUGHES Tammy MILDENSTEIN Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglunChina School of Environmental and Geographical Sciences University of Nottingham MalaysiaSemenyihSelangorMalaysia Centre for Ecology and Conservation University of ExeterExeterUnited Kingdom Project Pteropus RimbaKuala LumpurMalaysia Helmholtz-Centre for Environmental Research-UFZ Department of Computational Landscape EcologyLeipzigGermany Ecology and Conservation Research Laboratory(Eco/Con Lab) Department of Biological SciencesCollege of Science and MathematicsUniversity of Southern MindanaoKabacanNorth CotabatoPhilippines Department of Biology Cornell CollegeMount VernonIowaUSA School of Biological Sciences The University of Hong KongPokfulamHong KongChina

Global biodiversity is currently in the midst of the sixth mass extinction,and countless species and their key ecosystem services are threatened across different habitats(Vos et al.2015).Constructive actions to address the negative impacts of changing conditions require rigorous biodiversity data integration and synthesis to inform effective policy-making decisions(Heberling et al.2021).Care is needed to ensure objectivity and remove biases in analyses to avoid generating misleading ***,Ramírez-Fráncel et al.(2022)published a review offering an update on the vital ecosystem services of bats on a global *** applaud the authors for their attempt to conduct an extremely challenging large-scale analysis in major areas of bat ecosystem services.

关键词： services global offering

Comparative Evaluation of the Anti-ulcer Activity of Curcumin and Omeprazole during the Acute Phase of Gastric Ulcer—Efficacy of Curcumin in Gastric Ulcer Prevention against Omeprazole

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Food and Nutrition Sciences 2011年第6期2卷 628-640页

作者： Karolin Kamel abdul-aziz 不详

We have confirmed in our laboratory the antiulcer activity of curcumin during the acute chronic phase of gastric ulcer disease at doses of 20, 40 and 80 mg/kg (dissolved in saline solution). In the previous study, the potent effective dose of curcumin was 80 mg/kg that appears a propitious protective effect against gastric ulcer development. Therefore, the comparison between such recommended dose of curcumin and one of the proton pump inhibitors (PPIs) staff is worth-while. Since, the pharmacological control of gastric acid secretion is the main desired goal for gastro-cytoprotection, particularly, the H+/K+-ATPase (acid proton pump) inhibitors. Nevertheless, several studies have indicated that long-term inhibition of gastric acid secretion results in mucosal hyperplasia and carcinoid tumor development, due to increase circulating gastrin levels. Ulcer and the preventive indexes were scored, mucin, juice volume, total acidity, luminal haemoglobin, total antioxidant and total peroxide were evaluated. The pro-inflammatory cytokine IL-6 and the major angiogenic growth factor VEGF levels were measured. Conclusion, curcumin and omeprazole are potentially preventing gastric lesions development in the gastric wall during the acute phase of gastric ulcer diseases, but curcumin was more potent in its effect. Curcumin promotes gastric ulcer prevention/healing by induction of angiogenesis in the granular tissue of ulcers. That may be via upregulation of VEGF expression as reflected from VEGF level in serum and gastric juice, however, omeprazole might be has no role in this story.

关键词： Curcumin Proton Pump Inhibitors Total Antioxidant Copper Nicotinate Total Peroxide DNA Fragmentation

Zinc oxide nanoparticles accelerate the healing of methicillin-resistant Staphylococcus aureus(MRSA)-infected wounds in rabbits

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Asian Pacific Journal of Tropical Biomedicine 2023年第11期13卷 488-496,I0002页

作者： Muhammad Asif Ayesha Safdar Chaudhry Ambreen Ashar Hamad Bin Rashid Muhammad Hassan Saleem Hassaan Bin Aslam abdul aziz Department of Veterinary Surgery University of Veterinary and Animal SciencesLahorePunjabPakistan TECS Department Wilson College of TextilesNC State UniversityRaleigh 27606USA Department of Veterinary Medicine University of Veterinary and Animal SciencesLahorePunjabPakistan Institute of Microbiology University of Veterinary and Animal SciencesLahorePunjabPakistan Department of Veterinary Clinical Sciences University of PoonchRawalakot 12350Pakistan

Objective:To synthesize zinc oxide nanoparticles(ZnONPs)and evaluate their antibacterial and wound healing effects against wounds infected with methicillin-resistant Staphylococcus aureus(MRSA).Methods:ZnONPs were prepared by sol-gel method and characterized by X-ray diffraction(XRD)analysis and scanning electron microscopy(SEM).A total of 18 rabbits were divided into three groups:the ZnONPs group,the gentamicin group and the control group.A wound of 3 cm^(2) was inflicted on each rabbit and contaminated with MRSA *** was started from the fourth day *** healing,microbiological analysis,and histopathological analysis were performed to assess the efficacy of ZnONPs ***:XRD analysis confirmed the hexagonal wurtzite structure of the ZnONPs with an average crystallite size of 29.23 *** revealed discoid-shaped ZnONPs with a rough surface and an average size of 48.36 ***-dispersive X-ray analysis confirmed the purity of ***,the particle size ranged from 100-700 nm with a high agglomeration *** with ZnONPs promoted MRSA-infected wound *** addition,ZnONPs showed a good antibacterial effect as evidenced by a dose-dependent increase in the zone of ***:ZnONPs accelerate the healing of MRSA-infected ***,it can be explored for the treatment of MRSA infection.

关键词： MRSA Wound healing ZnO Nanoparticles Ointment

Machine Learning and Synthetic Minority Oversampling Techniques for Imbalanced Data: Improving Machine Failure Prediction

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Computers, Materials & Continua 2023年第6期75卷 4821-4841页

作者： Yap Bee Wah Azlan Ismail Nur Niswah Naslina Azid Jafreezal Jaafar Izzatdin abdul aziz Mohd Hilmi Hasan Jasni Mohamad Zain Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARA(UiTM)Shah Alam40450SelangorMalaysia School of Computing Sciences College of ComputingInformatics and MediaUniversiti Teknologi MARA(UiTM)40450Shah AlamSelangorMalaysia Mathematical Sciences Studies College of ComputingInformatics and MediaUniversiti Teknologi MARA(UiTM)Kelantan BranchMachang CampusBukit Ilmu18500MachangKelantan Darul NaimMalaysia Centre for Research in Data Science(CeRDaS) Department of Computer and Information Sciences(DCIS)Universiti Teknologi PETRONAS(UTP)Seri Iskandar32610PerakMalaysia UNITAR International University Jalan SS6/3SS6Petaling Jaya47301SelangorMalaysia

Prediction of machine failure is challenging as the dataset is often imbalanced with a low failure *** common approach to han-dle classification involving imbalanced data is to balance the data using a sampling approach such as random undersampling,random oversampling,or Synthetic Minority Oversampling Technique(SMOTE)*** paper compared the classification performance of three popular classifiers(Logistic Regression,Gaussian Naïve Bayes,and Support Vector Machine)in predicting machine failure in the Oil and Gas *** original machine failure dataset consists of 20,473 hourly data and is imbalanced with 19945(97%)‘non-failure’and 528(3%)‘failure data’.The three independent variables to predict machine failure were pressure indicator,flow indicator,and level *** accuracy of the classifiers is very high and close to 100%,but the sensitivity of all classifiers using the original dataset was close to *** performance of the three classifiers was then evaluated for data with different imbalance rates(10%to 50%)generated from the original data using SMOTE,SMOTE-Support Vector Machine(SMOTE-SVM)and SMOTE-Edited Nearest Neighbour(SMOTE-ENN).The classifiers were evaluated based on improvement in sensitivity and *** showed that the sensitivity of all classifiers increases as the imbalance rate *** with radial basis function(RBF)kernel has the highest sensitivity when data is balanced(50:50)using SMOTE(Sensitivitytest=0.5686,Ftest=0.6927)compared to Naïve Bayes(Sensitivitytest=0.4033,Ftest=0.6218)and Logistic Regression(Sensitivitytest=0.4194,Ftest=0.621).Overall,the Gaussian Naïve Bayes model consistently improves sensitivity and F-measure as the imbalance ratio increases,but the sensitivity is below 50%.The classifiers performed better when data was balanced using SMOTE-SVM compared to SMOTE and SMOTE-ENN.

关键词： Machine failure machine learning imbalanced data SMOTE classification

Activated carbon clothes for wide-voltage high-energy-density aqueous symmetric supercapacitors

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Chinese Chemical Letters 2020年第6期31卷 1620-1624页

作者： Kwadwo Asare Owusu Zhaoyang Wang Longbing Qu Zi'ang Liu Jaafar abdul-aziz Mehrez Qiulong Wei Liang Zhou Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Mechanical Engineering The University of MelbourneParkvilleVIC 3010Australia Department of Materials Science and Engineering University of California Los AngelesCA 90095-1595USA

Commercial carbon clothes have the potential to be utilized as supercapacitor electrodes due to their low cost and high ***,the negligible surface area of the carbon clothes serves as a serious impediment to their ***,we report a facile calcination activation method for carbon cloths to realize remarkable comprehensive electrochemical *** activated carbon cloths deliver a high areal capacitance(1700 mF/cm^2),good rate capability,and stable cycling performance up to 20,000 *** to the stability in the wide potential window,a designed symmetric capacitor can function in a cell voltage of 2.0 V and delivers high volumetric and gravimetric energy densities of 7.62 mWh/cm^3 and 18.2 Wh/kg,*** remarkable electrochemical performance is attributed to rich microporosity with high surface area,superior electrolyte wettability,and stability in wide potential window.

关键词： Activated carbon cloth Microporosity Aqueous symmetric supercapacitors Energy density Voltage window

Establishing a child and adolescent mental health center in Herat,Afghanistan:a project description

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Global Health Journal 2023年第4期7卷 194-199页

作者： abdul Fattah Najm aziz-ur-Rahman Niazi Mina Alekozay Emily B.Allan Kaaren Mathias Technical Director International Assistance MissionHerat 3001Afghanistan Department of Public Health and Infectious Diseases Faculty of MedicineHerat 3001Afghanistan Independent Consultant RedcarNorth YorkshireTS103JAUK Faculty of Health University of CanterburyChristchurch 8140New Zealand

Objective:Afghanistan has witnessed a long-lasting 4-decade armed conflict,which together with high levels of poverty and interpersonal violence,resulted in high incidence and prevalence of mental disorders in general population,including children and *** mid-2018,there was neither mental health care facility nor a child psychiatrist in ***,we report the establishment of the first children and adolescents'mental health center(CAMHC)in Herat province of ***:In July 2018,CAMHC was initiated at Mental Health Training *** was initially planned by the International Assistance Mission(IAM)and Herat Public Health Directorate;and financially supported by the Tearfund UK,the United Methodist Committee on Relief and Tearfund *** target population of CAMHC was children and adolescents in Herat and neighboring provinces,healthcare professionals,staff of government and non-governmental organizations,school teachers and community ***:A group of eight mental health professionals were trained and made the interdisciplinary board for diagnosis and management of mental disorders in children and *** the initial three-year period,2448 patients,including 1264(51.6%)boys and 1184(48.4%)girls,presented with mental disorders to *** and management of mental disorders were performed according to standard international *** awareness-raising seminars were held;2000 leaflets,10000 posters,and 30000 brochures were prepared and distributed;and two short video clips were produced and broadcast via IAM website,social media and local TV channels.A database was developed to house for project data,assessment of outcomes and reporting to ***:Establishment of CAMHC resulted in significant achievements in diagnosis and management of mental disorders among children and adolescents,healthcare staff capacity building,and awareness-raising about mental *** o

关键词： Child and adolescent Mental health Herat Afghanistan