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Computational Approach for Automated Segmentation and Classification of Region of Interest in Lateral Breast Thermograms

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Computers, Materials & Continua 2024年第9期80卷 4749-4765页

作者： Dennies Tsietso Abid Yahya Ravi Samikannu Basit qureshi Muhammad Babar Department of Electrical Computer and Telecommunications EngineeringBotswana International University of Science and TechnologyPalapyePrivate Bag 16Botswana College of Computer and Information Sciences Prince Sultan UniversityRiyadh11586Saudi Arabia Robotics and Internet of Things Lab Prince Sultan UniversityRiyadh11586Saudi Arabia

Breast cancer is one of the major health issues with high mortality rates and a substantial impact on patients and healthcare systems *** Computer-Aided Diagnosis(CAD)tools,based on breast thermograms,have been developed for early detection of this ***,accurately segmenting the Region of Interest(ROI)fromthermograms remains *** paper presents an approach that leverages image acquisition protocol parameters to identify the lateral breast region and estimate its bottomboundary using a second-degree *** proposed method demonstrated high efficacy,achieving an impressive Jaccard coefficient of 86%and a Dice index of 92%when evaluated against manually created ground *** features were extracted from each view’s ROI,with significant features selected via Mutual Information for training Multi-Layer Perceptron(MLP)and K-Nearest Neighbors(KNN)*** findings revealed that the MLP classifier outperformed the KNN,achieving an accuracy of 86%,a specificity of 100%,and an Area Under the Curve(AUC)of *** consistency of the method across both sides of the breast suggests its viability as an auto-segmentation ***,the classification results suggests that lateral views of breast thermograms harbor valuable features that can significantly aid in the early detection of breast cancer.

关键词： Breast cancer CAD machine learning ROI segmentation thermography

Monitoring the diversity of malaria and dengue vector in Karachi:studying variation of genera and subgenera of mosquitoes under different ecological conditions

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Ecological Processes 2014年第1期3卷 116-124页

作者： Saima Shaikh Syed Jamil H Kazmi Salman qureshi Department of Geography University of KarachiKarachi 75270Pakistan Department of Geography(Landscape Ecology) Humboldt University of BerlinRudower Chaussee 16Berlin 12489Germany School of Architecture Birmingham City UniversityThe Parkside Building5 Cardigan StreetBirmingham B47BDUK

Introduction:Karachi,a city of unique terrain and moderate tropical climate,is home to several mosquito *** geographical distribution and density of these species may vary within the city,owing to their interaction with an ever-increasing population and urban *** a consequence,the prevalence of vector-borne diseases is unpredictable within the geographical limits of Karachi *** this spatiotemporal study,1,156 mosquito samples were collected from 50 study sites with unique ecological characteristics within the city and a taxonomical exercise was conducted to investigate different vector species thriving in different months and seasons of the *** main genera of mosquitoes were identified and categorized using a pictorial key based on the standard guidelines of the Walter Reed Biosystematics Unit,substantiated with ancillary ***:Three important genera were found in Karachi:Anopheles,Aedes and *** subgenera were subsequently identified,based on their susceptibility to major vector-borne *** had the highest concentration of adult mosquitoes,as the colder weather conditions were suitable for *** recorded the lowest number,owing to excessively hot weather when most of the breeding pockets had dried out;less vegetation(in pre-monsoon conditions)prevented mosquito ***:Slum areas showed an abundance of malaria and dengue vectors,owing to poor hygiene conditions caused by open sewage ***,a major precaution is to raise awareness among people about mosquito-borne *** breeding habitats of these vectors should be studied using geospatial technologies to improve spatial and temporal coverage.

关键词： landscape ecology mosquito species spatial epidemiology spatial variation urban ecology urban habitat vector-borne diseases

Enhancement of solubility and therapeutic potential of poorly soluble lovastatin by SMEDDS formulation adsorbed on directly compressed spray dried magnesium aluminometasilicate liquid loadable tablets: A study in diet induced hyperlipidemic rabbits

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Asian Journal of Pharmaceutical Sciences 2015年第1期10卷 40-56页

作者： Mohd Javed qureshi Chitneni Mallikarjun Wong Gan Kian Department of Pharmaceutical Technology School of PharmacyTaylors UniversityLakeside CampusSelangorMalaysia Department of Pharmaceutical Technology School of PharmacyInternational Medical UniversityKuala LumpurMalaysia

The aim of present study was to formulate and evaluate a self-microemulsifying drug delivery systems(SMEDDS)containing lovastatin and to further explore the ability of porous Neusilin■ US2 tablet as a solid carrier for *** formulations of varying proportions of peceol,cremophor RH 40 and transcutol-P were selected and subjected to invitro evaluation,including dispersibility studies,droplet size,zeta potential measurement and release *** results indicated that the drug release profile of lovastatin from SMEDDS formulations was statistically significantly higher(p-value<0.05)than the plain lovastatin *** stability studies also confirmed the stability of the prepared SMEDDS *** optimized formulation,which consists of 12% of peceol,44% of cremophor RH 40,and 44% of transcutol-P was loaded into directly compressed liquid loadable tablet of Neusilin■ US2 by simple adsorption *** order to determine the ability of Neusilin®US2 as a suitable carrier pharmacodynamics study were also carried out in healthy diet induced hyperlipidemic *** were administered with both liquid SMEDDS and solid SMEDDS as *** the results obtained,Neusilin■ was found to be a suitable carrier for SMEDDS and was equally effective in reducing the elevated lipid *** conclusion,liquid loadable tablet(LLT)is predicted to be a promising technique to deliver a liquid formulation in solid state.

关键词： Lovastatin Self-microemulsifying drug delivery system(SMEDDS) Neusilin■US2 Liquid loadable tablet Solid carrier system Pharmacodynamics studies

AI-Enabled Grouping Bridgehead to Secure Penetration Topics of Metaverse

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Computers, Materials & Continua 2022年第12期73卷 5609-5624页

作者： Woo Hyun Park Isma Farah Siddiqui Nawab Muhammad Faseeh qureshi Department of Electrical and Computer Engineering Sungkyunkwan UniversitySuwon16419Korea Department of Computer Education Sungkyunkwan UniversitySeoul03063Korea Department of Software Engineering Mehran University of Engineering&TechnologyJamshoroPakistan

With the advent of the big data era,security issues in the context of artificial intelligence(AI)and data analysis are attracting research *** the metaverse,which will become a virtual asset in the future,users’communication,movement with characters,text elements,etc.,are required to integrate the real and ***,they can be exposed to ***,various hacker threats *** example,users’assets are exposed through notices and mail alerts regularly sent to users by *** the future,hacker threats will increase mainly due to naturally anonymous ***,it is necessary to use the natural language processing technology of artificial intelligence,especially term frequency-inverse document frequency,word2vec,gated recurrent unit,recurrent neural network,and long-short term ***,several application versions are ***,research on tasks and performance for algorithm application is *** propose a grouping algorithm that focuses on securing various bridgehead strategies to secure topics for security and safety within the *** algorithm comprises three modules:extracting topics from attacks,managing dimensions,and performing ***,we create 24 topic-based *** normal and spam mail attacks to verify our algorithm,the accuracy of the previous application version was increased by∼0.4%-1.5%.

关键词： Metaverse security computational linguistics grouping bridgehead AI

Urban Transport and Sustainable Transport Strategies： A Case Study of Karachi, Pakistan

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Tsinghua Science and Technology 2007年第3期12卷 309-317页

作者： Intikhab Ahmed qureshi 陆化普 Institute of Transportation Engineering Tsinghua University Beijing 100084 China

The uncontrolled growth in urbanization and motorization generally contributes to an urban land use and transportation system that is socially, economically, and environmentally unsustainable. This paper uses Karachi as a case study, which is the largest urban and economic centre of Pakistan, passing through an uncontrolled phase of rapid urbanization and motorization. The paper first reviews research related to sustainable transportation systems to comprehend the concept of sustainable development and transportation. The paper then evaluates the existing transportation and infrastructure system, national transportation policies, and urban transportation projects to determine if the current paradigm is moving toward or away from sustainable transportation. Furthermore, the principles for sustainable urban transportation are developed to see what significance national transportation policies have given to urban transportation from a sustainable transportation point of view. Finally some strategies are suggested, adoption of which may lead to a sustainable urban development and transportation system in Karachi.

关键词： sustainable development urbanization motorization socio-economic integrated land use and urban transportation system

On the complexity of average path length for biological networks and patterns

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International Journal of Biomathematics 2014年第4期7卷 51-61页

作者： Waqar Asif Hassaan Khaliq qureshi Adnan Iqbal Muttukrishnan Rajarajan National University of Sciences and Technology (NUST) Islamabad Pakistan Iqra University Islamabad Pakistan School of Engineering and Mathematical Sciences City University London UK

Path length calculation is a frequent requirement in studies related to graph theoretic problems such as genetics. Standard method to calculate average path length （APL） of a graph requires traversing all nodes in the graph repeatedly, which is computationally expensive for graphs containing large number of nodes. We propose a novel method to calculate APL for graphs commonly required in the studies of genetics. The proposed method is computationally less expensive and less time-consuming compared to standard method.

关键词： Reductionism average path length protein protein interaction.

A Model for Periodic Nonlinear Electric Field Structures in Space Plasmas

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Communications in Theoretical Physics 2009年第7期52卷 149-154页

作者： M.N.S. qureshi SHI Jian-Kui LIU Zhen-Xing Department of Physics GC University Lahore 54000 Pakistan State Key Laboratory of Space Weather CSSAR Chinese Academy of Sciences Beijing 100080 China

In this study,we present a physical model to explain the generation mechanism of nonlinear periodic waveswith a large amplitude electric field structures propagating obliquely and exactly parallel to the magnetic ***'Sagdeev potential' from the MHD equations is derived and the nonlinear electric field waveforms are obtained when theMach number,direction of propagation,and the initial electric field satisfy certain plasma *** the parallelpropagation,the amplitude of the electric field waves with ion-acoustic mode increases with the increase of initial electricfield and Mach number but its frequency decreases with the increase of Mach *** amplitude and frequency ofthe electric field waves with ion-cyclotron mode decrease with the increase of Mach number and become less spiky,andits amplitude increases with the increase of initial electric *** the oblique propagation,only periodic electric fieldwave with an ion-cyclotron mode obtained,its amplitude and frequency increase with the increase of Mach number andbecome *** our model the electric field structures show periodic,spiky,and saw-tooth behaviours correspondingto different plasma conditions.

关键词： nonlinear waves electric field solitary structures

Behavioral effects of a four-wing attractor with circuit realization: a cryptographic perspective on immersion

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Communications in Theoretical Physics 2020年第12期72卷 35-70页

作者： Najeeb Alam Khan Muhammad Ali qureshi Tooba Hameed Saeed Akbar Saif Ullah Department of Mathematics University of KarachiKarachi 75270Pakistan Department of Physics University of KarachiKarachi 75270Pakistan Department of Mathematics Government College UniversityLahore 54000Pakistan

In this paper,we propose an innovative chaotic system,combining fractional derivative and sinehyperbolic nonlinearity with circuit *** study of this system is conducted via an analog circuit simulator,using two anti-parallel semiconductor diodes to provide hyperbolic sine nonlinearity,and to function as operational *** multi-stability of the system is also enhanced with the help of multi-equilibrium points for distinct real orders of *** system explores the generation of a four-wing attractor in different phases,both numerically and *** changing the input parameters of the system,different graphs are generated for current flow in state,phase,and space,to confirm the precision of the fractional order derivatives.A reasonable simulation shows that the deliberate circuit provides effective chaos in terms of speed and accuracy,which is comensurate with the numerical *** nonlinear chaotic behavior is utilized to encrypt sound(.wav),images(.jpg),and animated(.gif)data which are a major requirement for the security of communication *** proposed circuit performs chaos and cryptographic tasks with high-effective analog computation,and constitutes a novel approach to this area of research.

关键词： multi-wing attractors hyperbolic sine circuit realization encryption

The effect of positive/negative ion on the dust grain charging process in a Vasyliunas-Cairns (VC)-distributed dusty plasma system

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Plasma Science and Technology 2019年第6期21卷 58-62页

作者： N AHMAD A A ABID Y AL-HADEETHI M N S qureshi Saqib REHMAN Department of Engineering and Applied Physics University of Science and Technology of China Hefei 230026 People's Republic of China CAS Key Laboratory of Geospace Environment Department of Geophysics and Planetary ScienceUniversity of Science and Technology of China Hefei 230026 People's Republic of China Department of Physics Faculty of Sciences King Abdulaziz Unniversity Jeddah 21589 Saudi Arabia Department of Physics GC University Lahore 54000 Pakistan Department of Chemical Physics University of Science and Technology of China Hefei 230026People's Republic of China

Charging mechanism of dust particles has been considered as a growing research area in dusty plasma physics because of its exciting *** this paper,we consider a low-temperature non-equilibrium multispecies plasma model,which consists of Vasyliunas-Caims (VC) distributed electrons,negative/positive streaming ions,and negatively-charged dust grains to explain the charging mechanism of dust *** main theme of this work is to derive expressions of currents for negatively-charged dust grains (considering an equilibrium state position) in the plasma environment comprised of electrons and positive/negative streaming ions using the VC distribution *** proposed model shows that the dust grain surface potential is significantly affected by different plasma parameters such as the negative ion streaming velocity (Sn),positive ion streaming velocity (Si),spectral indices of VC distribution,negative ion charging state (Zn),positive ion charging state (Zi),and negative ion number density (ρ).

关键词： dust grain surface potential vasyliunas-cairns power law velocity distribution function multi species plasma