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Influence of postural changes on haemodynamics in internal carotid artery bifurcation aneurysm using numerical methods

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Visual Computing for Industry,Biomedicine,and Art 2022年第1期5卷 128-143页

作者： Raghuvir Pai Ballambat Mohammad Zuber shah mohammed abdul khader Anurag Ayachit Kamarul Arifin bin Ahmad Rajanikanth ao Vedula Sevagur Ganesh Kamath Ibrahim Lutfi Shuaib Department of Mechanical and Industrial Engineering Manipal Institute of TechnologyManipal Academy of Higher EducationManipal 576104India Department of Aeronautical and Automobile Engineering Manipal Institute of TechnologyManipal Academy of Higher EducationManipal 576104India Department of Radiology and Imaging Kasturba Medical CollegeManipal Academy of Higher EducationManipal 576104India Department of Aerospace Engineering Faculty of EngineeringUniversitist Putra Malaysia43499 Kuala LumpurMalaysia Department of Cardio-Vascular and Thoracic Surgery Kasturba Medical CollegeManipal Academy of Higher EducationManipal 576104India Advanced Medical and Dental Institute Universiti Sains Malaysia13200 George TownMalaysia

Cerebral intracranial aneurysms are serious problems that can lead to stroke,coma,and even *** effect of blood flow on cerebral aneurysms and their relationship with rupture are *** addition,postural changes and their relevance to haemodynamics of blood flow are difficult to measure in vivo using clinical imaging *** simulations investigating the detailed haemodynamics in cerebral aneurysms have been developed in recent times not only to understand the progression and rupture but also for clinical evaluation and *** the present study,the haemodynamics of a patient-specific case of a large aneurysm on the left side internal carotid bifurcation(LICA)and no aneurysm on the right side internal carotid bifurcation(RICA)was *** simulation of these patient-specific models using fluid–structure interaction provides a valuable comparison of flow behavior between normal and aneurysm *** influences of postural changes were investigated during standing,sleeping,and head-down(HD)*** changes in flow were observed during the HD position and quit high arterial blood pressure in the internal carotid artery(ICA)aneurysm model was established when compared to the normal ICA *** velocity increased abruptly during the HD position by more than four times(LICA and RICA)and wall shear stress by four times(LICA)to ten times(RICA).The complex spiral flow and higher pressures prevailing within the dome increase the risk of aneurysm rupture.

关键词： Carotid aneurysm ANSYS fluid-structure interaction Altered gravity Haemodynamics

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Sigmoidal Particle Swarm Optimization for Twitter Sentiment Analysis

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Computers, Materials & Continua 2023年第1期74卷 897-914页

作者： Sandeep Kumar Muhammad Badruddin Khan Mozaherul Hoque Abul Hasanat abdul khader Jilani Saudagar abdullah AlTameem mohammed AlKhathami Department of Computer Science and Engineering CHRIST(Deemed to be University)Bangalore560074India Information Systems Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia

Social media,like Twitter,is a data repository,and people exchange views on global issues like the COVID-19 *** media has been shown to influence the low acceptance of *** work aims to identify public sentiments concerning the COVID-19 vaccines and better understand the individual’s sensitivities and feelings that lead to *** work proposes a method to analyze the opinion of an individual’s tweet about the COVID-19 *** paper introduces a sigmoidal particle swarm optimization(SPSO)***,the performance of SPSO is measured on a set of 12 benchmark problems,and later it is deployed for selecting optimal text features and categorizing *** proposed method uses TextBlob and VADER for sentiment analysis,CountVectorizer,and term frequency-inverse document frequency(TF-IDF)vectorizer for feature extraction,followed by SPSO-based feature *** Covid-19 vaccination tweets dataset was created and used for training,validating,and *** proposed approach outperformed considered algorithms in terms of ***,we augmented the newly created dataset to make it balanced to increase performance.A classical support vector machine(SVM)gives better accuracy for the augmented dataset without a feature selection *** shows that augmentation improves the overall accuracy of tweet *** the augmentation performance of PSO and SPSO is improved by almost 7%and 5%,respectively,it is observed that simple SVMwith 10-fold cross-validation significantly improved compared to the primary dataset.

关键词： Twitter data analysis sentiment analysis social media analytics swarm intelligence COVID-19 vaccine

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An Optimized Offloaded Task Execution for Smart Cities Applications

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Computers, Materials & Continua 2023年第3期74卷 6321-6334页

作者： Ahmad Naseem Alvi Muhammad Awais Javed Mozaherul Hoque Abul Hasanat Muhammad Badruddin Khan abdul khader Jilani Saudagar mohammed Alkhathami Department of Electrical and Computer Engineering COMSATS University Islamabad45550Pakistan Information Systems Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia

Wireless nodes are one of the main components in different applications that are offered in a smart *** wireless nodes are responsible to execute multiple tasks with different priority *** the wireless nodes have limited processing capacity,they offload their tasks to cloud servers if the number of tasks exceeds their task processing *** these tasks from remotely placed cloud servers causes a significant delay which is not required in sensitive task *** execution delay is reduced by placing fog computing nodes near these application nodes.A fog node has limited processing capacity and is sometimes unable to execute all the requested *** this work,an optimal task offloading scheme that comprises two algorithms is proposed for the fog nodes to optimally execute the time-sensitive offloaded *** first algorithm describes the task processing criteria for local computation of tasks at the fog nodes and remote computation at the cloud *** second algorithm allows fog nodes to optimally scrutinize the most sensitive tasks within their task *** results show that the proposed task execution scheme significantly reduces the execution time and most of the time-sensitive tasks are executed.

关键词： Smart cities fog computing task offloading knapsack

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Convergence Track Based Adaptive Differential Evolution Algorithm(CTbADE)

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Computers, Materials & Continua 2022年第7期72卷 1229-1250页

作者： Qamar Abbas Khalid Mahmood Malik abdul khader Jilani Saudagar Muhammad Badruddin Khan Mozaherul Hoque Abul Hasanat abdullah AlTameem mohammed AlKhathami Department of Computer Science and Software Engineering International Islamic UniversityIslamabad44000Pakistan Department of Computer Science and Engineering Oakland UniversityRochesterMIUSA Information Systems Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)RiyadhSaudi Arabia

One of the challenging problems with evolutionary computing algorithms is to maintain the balance between exploration and exploitation capability in order to search global optima.A novel convergence track based adaptive differential evolution(CTbADE)algorithm is presented in this research *** crossover rate and mutation probability parameters in a differential evolution algorithm have a significant role in searching global optima.A more diverse population improves the global searching capability and helps to escape from the local optima *** the convergence path over time helps enhance the searching speed of a differential evolution algorithm for varying *** adaptive powerful parameter-controlled sequences utilized learning period-based memory and following convergence track over time are introduced in this *** proposed algorithm will be helpful in maintaining the equilibrium between an algorithm’s exploration and exploitation capability.A comprehensive test suite of standard benchmark problems with different natures,i.e.,unimodal/multimodal and separable/non-separable,was used to test the convergence power of the proposed CTbADE *** results show the significant performance of the CTbADE algorithm in terms of average fitness,solution quality,and convergence speed when compared with standard differential evolution algorithms and a few other commonly used state-of-the-art algorithms,such as jDE,CoDE,and EPSDE *** algorithm will prove to be a significant addition to the literature in order to solve real time problems and to optimize computationalmodels with a high number of parameters to adjust during the problem-solving process.

关键词： Differential evolution function optimization convergence track parameter sequence adaptive control parameters

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Mesuaferrea stem bark extract induces apoptosis and inhibits metastasis in human colorectal carcinoma HCT 116 cells, through modulation of multiple cell signalling pathways

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Chinese Journal of Natural Medicines 2017年第7期15卷 505-514页

作者： Muhammad Asif Armaghan Shafaei Aman shah abdul Majid mohammed Oday Ezzat Saad S Dahham Mohamed B.Khadeer Ahamed Chern Ein Oon Amin Malik shah abdul Majid EMAN Testing and Research Laboratory Department of Pharmacology School of Pharmaceutical Sciences Universiti Sains Malaysia Penang 11800 Malaysia Department of Pharmaceutical Chemistry School of Pharmaceutical Sciences Universiti Sains Malaysia Penang 11800 Malaysia Department of Pharmacology School of Medical Sciences Quest International University Perak Malaysia Centre for Drug Research Universiti Sains Malaysia Penang 11800 Malaysia Institute for Research in Molecular Medicine (INFORMM) Universiti Sains Malaysia Penang 11800 Malaysia

Considering the great potential of natural products as anticancer agents, the present study was designed to explore the molecular mechanisms responsible for anticancer activities of Mesua ferrea stem bark extract against human colorectal carcinoma. Based on MTT assay results, bioactive sub-fraction(SF-3) was selected for further studies using HCT 116 cells. Repeated column chromatography resulted in isolation of less active α-amyrin from SF-3, which was identified and characterized by GC-MS and HPLC methods. α-amyrin and betulinic acid contents of SF-3 were measured by HPLC methods. Fluorescent assays revealed characteristic apoptotic features, including cell shrinkage, nuclear condensation, and marked decrease in mitochondrial membrane potential in SF-3 treated cells. In addition, increased levels of caspases-9 and-3/7 levels were also observed in SF-3 treated cells. SF-3 showed promising antimetastatic properties in multiple in vitro assays. Multi-pathway analysis revealed significant down-regulation of WNT, HIF-1α, and EGFR with simultaneous up-regulation of p53, Myc/Max, and TGF-β signalling pathways in SF-3 treated cells. In addition, promising growth inhibitory effects were observed in SF-3 treated HCT 116 tumour spheroids, which give a hint about in vivo antitumor efficacy of SF-3 phytoconstituents. In conclusion, these results demonstrated that anticancer effects of SF-3 towards colon cancer are through modulation of multiple molecular pathways.

关键词： Mesua ferrea a-Amyrin Apoptotic Antimetastatic Molecular pathways

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粗隆间骨折

粗隆间骨折

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作者： mohammed abdul khader 吉林大学

学位级别：硕士

研究目标:本片论文意在研究动力髋螺钉用于转子间骨折手术治疗的有效性,同时也为了跟踪采访做过此项手术病人的情况,记录他们的功能恢复和髋关节活动情况。研究方法:本次研究的对象为在2015年6月到2016年7月的一年零一个月的时间里,在Os... 详细信息

研究目标:本片论文意在研究动力髋螺钉用于转子间骨折手术治疗的有效性,同时也为了跟踪采访做过此项手术病人的情况,记录他们的功能恢复和髋关节活动情况。研究方法:本次研究的对象为在2015年6月到2016年7月的一年零一个月的时间里,在Osmania General Hospital接受动力髋螺钉手术治疗的转子骨折的患者。为了更好地评估实验结果,我们对30名接受动力髋螺钉手术治疗的转子骨折患者进行了跟踪采访。只有定期做出回馈的患者才被选为研究对象。此次研究对调查结果进行了记录和讨论。调查采访的平均时长为6.64个月。最短时长为5个月,最长为1?年。患者年龄在20岁到77岁之间,平均年龄为55.56岁。40%的患者年龄在50岁以下。男性患者数量多于女性患者（19:6）。右侧转子骨折的数量大于左侧转子骨折的数量（14:11）。研究结果:在全部的25名患者中,5名（20%）患者的手术结果极好。这5名患者中,4名患有I型转子骨折,另外一名患者患有II型转子骨折。有15名（60%）患者的手术结果良好。只有两个案例中患者出现了10度的髋内翻现象。在15名手术结果良好的患者中,3名患者患有I型转子骨折,7名患有II型转子骨折,4名患有IV型转子骨折。有4名患者的结果一般。这4名患者中,一名患有II型转子骨折,一名患有III型转子骨折,另外两名患有IV型转子骨折。有一名患者的手术结果并不理想。所有I型转子骨折的案例都获得了极好或者良好的手术结果。80%的II型转子骨折手术获得了极好或良好的手术结果。50%的III型转子间骨折手术和57%IV型转子骨折手术结果为良好。在接受手术的25名患者中,2名（8%）患者出现了髋外翻的情况。其中,一名患者在手术植入失败后出现了髋外翻的情况。此次研究中髋外翻的发生率与其他研究的结果相近（Hornby和Grimley Evans的研究数据为8.57%）。25名患者中,6名出现了大于1/2英寸的缩短。这项结果数据高于其他研究所得结果。此次研究中出现了两个手术植入失败案例。结论:本次研究结果令人满意且十分乐观。通过对结果数据的分析,在动力髋螺钉在转子间骨折手术中的应用上,我们得到如下结果。此项技术对医生的手术经验要求不高。手术过程较简单,水平一般的外科医生就可以完成此项手术操作。这项装置可以促进骨折部位的嵌入,并且提供坚硬的内部固定支撑。有了此项装置,骨折部位可以发生controlled collapse且能不影响颈干脚。所以,这项手术并不改变髋部的生物力学性能。因此,髋外翻的发生几率就小了。由于所用螺钉采用的创新的短螺纹设计,在骨质疏松部位固定效果也会很好。由于骨折部位的磨损和collapse而产生螺钉穿入股骨头现象的发生率也会降低,这是由于所用螺钉的圆形顶部设计和privision of telescopy所造成的。接受此种手术的病人,恢复得快并且髋部活动不会伴随有疼痛感。患者多数为年轻男性,所以解剖复位变得十分重要。

关键词：转子骨折动力髋螺钉转子间骨折小转子大转子

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Robust Watermarking Scheme for NIfTI Medical Images

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Computers, Materials & Continua 2022年第5期71卷 3107-3125页

作者： Abhishek Kumar Kamred Udham Singh Visvam Devadoss Ambeth Kumar Tapan Kant abdul khader Jilani Saudagar abdullah Al Tameem mohammed Al Khathami Muhammad Badruddin Khan Mozaherul Hoque Abul Hasanat Khalid Mahmood Malik School of Computer Science and IT JAIN(Deemed to be University)Bangalore560069India Department of Computer Science and Information Engineering National Cheng Kung UniversityTainan701Taiwan Department of Computer Science&Engineering Panimalar Engineering CollegeAnna UniversityChennai600123India Patna Women’s College Patna800001India Information Systems Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia Department of Computer Science and Engineering Oakland UniversityRochester48309USA

Computed Tomography(CT)scan and Magnetic Resonance Imaging(MRI)technologies are widely used in medical *** the last few months,due to the increased use of CT scans,millions of patients have had their CT scans ***,as a result,images showing the Corona Virus for diagnostic purposes were digitally transmitted over the *** major problem for the world health care system is a multitude of attacks that affect copyright protection and other ethical issues as images are transmitted over the *** a result,it is important to apply a robust and secure watermarking technique to these ***,watermarking schemes have been developed for various image formats,***,.bmp,***,but their impact on NIfTI(Neuroimaging Informatics Technology Initiative)images is not noteworthy.A watermarking scheme based on the Lifting Wavelet Transform(LWT)and QR factorization is presented in this *** LWT and QR are combined,the NIfTI image maintains its inherent sensitivity and mitigates the watermarking scheme’s *** watermarks are added to the host image in this *** the performance of the graphics card is done by using PSNR,SSIM,Q(a formula which measures image quality),SNR,and Normalized *** watermarking scheme withstands a variety of noise attacks and conversions,including image compression and decompression.

关键词： Watermarking NIfTI LWT QR image security

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A comparative study of conventional and supercritical fluid extraction methods for the recovery of secondary metabolites from Syzygium campanulatum Korth

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2016年第9期17卷 683-691页

作者： abdul Hakeem MEMON Mohammad shahrul Ridzuan HAMIL Madeeha LAGHARI Fahim RITHWAN Salman ZHARI mohammed Ali Ahmed SAEED Zhari ISMAIL Amin Malik shah abdul MAJID Department of Pharmaceutical Chemistry School of Pharmaceutical Sciences Universiti Sains Malaysia 11800 Minden Penang Malaysia Center of Lipids Engineering and Applied Research (CLEAR) lbnu Sina Institute for Scientific & Industrial Research (lbnu Sina ISIR) Universiti Teknologi Malaysia 81310 Johor Bahru Johor Malaysia EMAN Research and Testing Laboratory School of Pharmaceutical Sciences Universiti Sains Malaysia 11800 Minden Penang Malaysia

Syzygium campanulatum Korth is a plant, which is a rich source of secondary metabolites （especially flavanones, chalcone, and triterpenoids）. In our present study, three conventional solvent extraction （CSE） techniques and supercritical fluid extraction （SFE） techniques were performed to achieve a maximum recovery of two flavanones, chalcone, and two triterpenoids from S. campanulatum leaves. Furthermore, a Box-Behnken design was constructed for the SFE technique using pressure, temperature, and particle size as independent variables, and yields of crude extract, individual and total secondary metabolites as the dependent variables. In the CSE procedure, twenty extracts were produced using ten different solvents and three techniques （maceration, soxhletion, and reflux）. An enriched extract of five secondary metabolites was collected using n-hexane：methanol （1：1） soxhletion. Using food-grade ethanol as a modifier, the SFE methods produced a higher recovery （25.5%-84.9%） of selected secondary metabo- lites as compared to the CSE techniques （0.92%-66.00%）.

关键词： Syzygium campanulatum Supercritical fluid extraction Conventional solvent extractions Flavanones Chalcone Triterpenoids

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Network Structure-Based Critical Bus Identification for Power System Considering Line Voltage Stability Margin

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Journal of Power and Energy Engineering 2018年第9期6卷 97-111页

作者： Oludamilare Bode Adewuyi Mir Sayed shah Danish abdul Motin Howlader Tomonobu Senjyu mohammed E. Lotfy University of the Ryukyus 1 Senbaru Nishihara-cho Nakagami Okinawa Japan University of Hawaii Manoa Honolulu Hawaii USA Zagazig University Zagazig Egypt

Voltage security assessment of power system is an important and all-inclusive aspect of power system operation and preventive control actions. Fast and accurate detection of critical components of the power system is one essential approach for preventing the occurrence of voltage collapse phenomenon. Over the years, several approaches for voltage collapse point identification and prevention have been widely studied using the continuous power flow approach, minimum singular value of eigenvalues, Jacobian matrices, and power transfer concept. In this work, critical node (bus) identification based on power system network structure is proposed. In this approach, the power system is treated as a multidimensional graph with several nodes (buses) linked together by the transmission lines. An improved line voltage stability margin estimator which is based on active and reactive power changes in a power system is used as the weight of each transmission line and an adaptation of the degree of centrality approach is used to determine the criticality of the system buses. A comparative analysis with other bus voltage stability indices is presented to test the suitability of the proposed approach using the IEEE 14, 30, 57 and 118 bus test systems.

关键词： Voltage Stability Voltage Collapse Critical Node Critical Boundary Index Centrality Measure

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Psychological risk factors associated with falls among elderly people in Baghdad city, Iraq

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Open Journal of Preventive Medicine 2013年第7期3卷 441-445页

作者： mohammed A. Abdal Qader Rahmah Mohd. Amin Shamsul Azhar shah Zaleha Md. Isa Khalib abdul Latif Hasanain Faisal Ghazi Department of Community Health Universiti Kebangsaan Malaysia Medical Centre Kuala Lumpur Malaysia Department of Community Health Universiti Kebangsaan Malaysia Medical Centre Kuala Lumpur Malaysia Medical and Health Science Faculty Universiti Sultan Zainal Abidin (City Campus) Jalan Sultan Mahmud Kuala Terengganu Malaysia

Background: Ageing of the population is one of the most important demographic facts that come to the foreground in the 21st century. Objective: To assess the relationship between psychological factors (depression, loneliness, using anti anxiety medication, fear from falls and internal displacement of the population) and falls among elderly people in Baghdad city, Iraq. Methods: A matched 1:1 community based case-control study involving 716 elderly respondents, recruited randomly from six Non Governmental Organization (NGO) in different areas of Baghdad. Interviews to each respondent were done accordingly. Geriatric depression scale (GDS) was used to assess the depression among the elderly people. Results: The minimum age for cases and controls was 60 years old while the maximum age for cases was 87 and for controls was 85 years old. The female was predominant than male, 53.6% to 46.4% respectively. The relation between depression, fear from fall, using anti anxiety medication, internal displacement and falls was statistically significant

关键词： Falls Elderly Depression Fear from Fall Baghdad

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