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Biomedical and Environmental Sciences 2021年第9期34卷 729-733页

作者： tahir Yaqub muhammad Nawaz muhammad Z.Shabbir muhammad A.Ali Imran Altaf Sohail Raza muhammad A.B.Shabbir muhammad A.Ashraf Syed Z.Aziz Sohai l Q.Cheema muhammad B.Shah Saira Rafique Sohail Hassan Nageen Sardar Adnan Mehmood muhammad W.Aziz Sehar Fazal Nadir Hussain muhammad T.Khan muhammad M.Atique Ali Asif muhammad Anwar Nabeel A.Awan muhammad U.Younis muhammad A.Bhattee Zarfishan tahir Nadia Mukhtar Huda Sarwar Maaz S.Rana Omair Farooq Institute of Microbiology University of Veterinary and Animal SciencesLahorePakistan Water and Sanitation Agency LahorePunjabPakistan Specialized Healthcare&Medical Education Department PunjabPakistan Primary and Secondary Healthcare Department PunjabPakistan Institute of Public Health LahorePakistan Farooq Hospital LahorePakistan

In 2019,the newly emerged SARS-CoV-2 virus caused pneumonia-like *** disease rapidly spread globally,leading to a worldwide outbreak referred to as the COVID-19 pandemic.

关键词： globally Strategy Smart

Paraneoplastic syndromes in cholangiocarcinoma

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World Journal of Hepatology 2020年第11期12卷 897-907页

作者： Saad Ur Rahman muhammad Khawar Sana Zabreen tahir Aamir Ali Pir Ahmad Shah Department of Medicine King Edward Medical UniversityLahore 54000PunjabPakistan Department of Neurology Brigham and Women’s HospitalBostonMA 02115United States Department of Radiology Beth Israel Deaconess Medical CenterBostonMA 02215United States Department of Medicine University of Texas Health Science CenterSan AntonioTX 78229United States

Paraneoplastic syndromes are the symptoms or signs which result from damage to tissues that are distant from the site of malignancy,due to complex interactions between the body’s immune system and malignant ***(CCA)is an aggressive epithelial malignancy of hepatobiliary tree and it is found to be associated with various paraneoplastic *** syndromes can present as dermatological,neurological,renal,hematological,or multi-systemic *** suspicion and timely recognition of these syndromes can lead to early diagnosis of covert malignancies like *** management plan remains the removal of the underlying cause which in this case is CCA.

关键词： Cholangiocarcinoma Paraneoplastic syndrome Malignancy Immune system Biliary tree Multi-organ

The electronic and magnetic properties of wurtzite Mn：CdS, Cr：CdS and Mn：Cr：CdS： first principles calculations

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Journal of Semiconductors 2017年第7期38卷 36-43页

作者： Azeem Nabi Zarmeena Akhtar tahir Iqbal Atif Ali muhammad Arshad Javid Department of Physics University of Gujrat Gujrat Pakistan Department of Basic Sciences (Physics) University of Engineering and Technology Taxila Pakistan

In this article, density functional theory（DFT） based on generalized gradient approximation（GGA）and GGACU, U is Hubbard term, is used to study the electronic properties of CdS doped with different dopants（Cr, Mn）. The calculations are carried out for Mn-doped CdS, Cr-doped CdS, and co-doping of Mn/Cr in CdS simultaneously. It is found that hopping of electrons is possible with Cr：CdS and Mn：Cr：CdS while Mn：CdS does not allow the hopping of electrons. Moreover, double exchange interactions are observed in Cr：CdS and d-d superexchange interactions are observed in Mn：CdS. Now the problem becomes interesting when one magnetic ion（Cr） supporting double exchange interactions and another ion（Mn） supporting d-d super-exchange interactions are doped simultaneously in the same system（CdS）. The co-doped CdS is more stable even at high Curie temperature due to p-d double exchange interactions and d-d super exchange interactions. Furthermore, the Cr-3d and Mn-3d states present in-between the band gap are responsible for inner shell transitions and hence for optical ***, the co-doped system is taken into account to enhance its applications in the field of spintronic and magneto-optical devices.

关键词： wurtzite first principles density functional theory

Experimental and DFT Studies of Au Deposition Over WO_(3)/g-C_(3)N_(4) Z-Scheme Heterojunction

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Nano-Micro Letters 2020年第1期12卷 75-92页

作者： muhammad Humayun Habib Ullah Junhao Cao Wenbo Pi Yang Yuan Sher Ali Asif Ali tahir Pang Yue Abbas Khan Zhiping Zheng Qiuyun Fu Wei Luo Engineering Research Center for Functional Ceramics of the Ministry of Education School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China China‑EU Institute for Clean and Renewable Energy Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China Environment and Sustainability Institute(ESI) University of ExeterPenryn CampusPenrynCornwall TR109FEUK College of Engineering and Applied Sciences Nanjing UniversityNanjing 210093People’s Republic of China Department of Chemistry Abdul Wali Khan UniversityMardanKhyber Pakhtunkhwa 23200Pakistan

A typical Z-scheme system is composed of two photocatalysts which generate two sets of charge carriers and split water into H2 and O2 at different *** are struggling to enhance the efficiencies of these systems by maximizing their light absorption,engineering more stable redox couples,and discovering new O2 and H2 evolutions *** this work,Au decorated WO3/g-C3N4 Z-scheme nanocomposites are fabricated via wet-chemical and photo-deposition *** nanocomposites are utilized in photocatalysis for H2 production and 2,4-dichlorophenol(2,4-DCP)*** is investigated that the optimized 4Au/6%WO3/CN nanocomposite is highly efficient for production of 69.9 and 307.3μmol h−1 g−1 H2 gas,respectively,under visible-light(λ>420 nm)and UV–visible ***,the fabricated 4Au/6%WO3/CN nanocomposite is significant(i.e.,100%degradation in 2 h)for 2,4-DCP degradation under visible light and highly stable in photocatalysis.A significant 4.17%quantum efficiency is recorded for H2 production at wavelength 420 *** enhanced performance is attributed to the improved charge separation and the surface plasmon resonance effect of Au ***-state density functional theory simulations are performed to countercheck and validate our experimental *** surface formation energy,high charge transfer,and strong non-bonding interaction via electrostatic forces confirm the stability of 4Au/6%WO3/CN interface.

关键词： Polymeric g-C_(3)N_(4) Plasmonic Au Charge separation Solar H_(2) production DFT calculations

Enhanced room temperature ferromagnetism in Cr-doped ZnO nanoparticles prepared by auto-combustion method

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Journal of Semiconductors 2018年第4期39卷 20-27页

作者： Khizar-ul Haq M.Irfan muhammad Masood Murtaza Saleem tahir Iqbal Ishaq Ahmad M.A.Khan M.Zaffar muhammad Irfan Department of Physics Mirpur University of Science and Technology (MUST) Department of Physics SBASST Lahore University of Management Sciences Experimental Physics Labs National Centre for Physics Quaid-e-Azam University Department of Physics University of Azad Jammu and Kashmir Muzaffarabad

Zn1-xCrxO （x = 0.00, 0.01, 0.03, 0.05, 0.07, and 0.09） nanoparticles were synthesized, by an auto-com- bustion method. Structural, optical, and magnetic characteristics of Cr-doped ZnO samples calcined at 600 ℃ have been analyzed by using X-ray diffraction （XRD）, field emission scanning electron microscope （FESEM）, UV-Vis spectroscopy and vibrating sample magnetometer （VSM）. The XRD data confirmed the hexagonal wurtzite structure of pure and Cr-doped ZnO nanoparticles. The calculated values of grain size using Scherrer＇s formula are in the range of 30.7-9.2 nm. The morphology of nanopowders has been observed by FESEM, and EDS results con- firmed a systematic increase of Cr content in the samples and clearly indicate with no impurity element. The band gaps, computed by UV-Vis spectroscopy, are in the range of 2.83-2.35 eV for different doping concentrations. By analyzing VSM data, significantly enhanced room temperature ferromagnetism is identified in Cr-doped ZnO samples. The value of magnetization is a 12 times increased of the value reported by Daun et al. （2010）. Room temperature ferromagnetism of the nanoparticles is of vital prominence for spintronics applications.

关键词： Cr-doped ZnO auto-combustion DMS ferromagnetism

A Hybrid Attention-Based Residual Unet for Semantic Segmentation of Brain Tumor

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Computers, Materials & Continua 2023年第7期76卷 647-664页

作者： Wajiha Rahim Khan tahir Mustafa Madni Uzair Iqbal Janjua Umer Javed muhammad Attique Khan Majed Alhaisoni Usman Tariq Jae-Hyuk Cha Department of Computer Science COMSATS University IslamabadIslamabad45550Pakistan Department of Electrical and Computer Engineering COMSATS University IslamabadWah CampusPakistan Department of Computer Science HITEC UniversityTaxilaPakistan Department of Computer Science College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia Department of Management Information Systems CoBAPrince Sattam Bin Abdulaziz UniversityAl-Kharj16273Saudi Arabia Department of Computer Science Hanyang UniversitySeoul04763Korea

Segmenting brain tumors in Magnetic Resonance Imaging(MRI)volumes is challenging due to their diffuse and irregular ***,2D and 3D deep neural networks have become famous for medical image segmentation because of the availability of labelled ***,3D networks can be computationally expensive and require significant training *** research proposes a 3D deep learning model for brain tumor segmentation that uses lightweight feature extraction modules to improve performance without compromising contextual information or *** proposed model,called Hybrid Attention-Based Residual Unet(HA-RUnet),is based on the Unet architecture and utilizes residual blocks to extract low-and high-level features from MRI *** and Squeeze-Excitation(SE)modules are also integrated at different levels to learn attention-aware features adaptively within local and global receptive *** proposed model was trained on the BraTS-2020 dataset and achieved a dice score of 0.867,0.813,and 0.787,as well as a sensitivity of 0.93,0.88,and 0.83 for Whole Tumor,Tumor Core,and Enhancing Tumor,on test dataset *** results show that the proposed HA-RUnet model outperforms the ResUnet and AResUnet base models while having a smaller number of parameters than other state-of-the-art ***,the proposed HA-RUnet model can improve brain tumor segmentation accuracy and facilitate appropriate diagnosis and treatment planning for medical practitioners.

关键词： MRI volumes residual Unet BraTs-2020 squeeze-excitation(SE)

Novel mutations in PDE6A and CDHR1 cause retinitis pigmentosa in Pakistani families

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International Journal of Ophthalmology(English edition) 2021年第12期14卷 1843-1851页

作者： muhammad Dawood Siying Lin Taj Ud Din Irfan Ullah Shah Niamat Khan Abid Jan muhammad Marwan Komal Sultan Maha Nowshid Raheel tahir Asif Naveed Ahmed muhammad Yasin Emma LBaple Andrew HCrosby Shamim Saleha Department of Biotechnology and Genetic Engineering Kohat University of Science and Technology(KUST)Kohat 26000Khyber PakhtunkhwaPakistan Medical Research RILD Wellcome Wolfson Centre(Level 4)Royal Devon and Exeter NHS Foundation TrustExeterDevon EX25DWUK Department of Ophthalmology KMU Institute of Medical Sciences(KIMS)Kohat 26000Khyber PakhtunkhwaPakistan

AIM:To investigate the genetic basis of autosomal recessive retinitis pigmentosa(arRP)in two consanguineous/endogamous Pakistani ***:Whole exome sequencing(WES)was performed on genomic DNA samples of patients with arRP to identify disease causing *** sequencing was performed to confirm familial segregation of identified mutations,and potential pathogenicity was determined by predictions of the mutations’***:A novel homozygous frameshift mutation[NM_000440.2:c.1054delG,p.(Gln352Argfs*4);Chr5:g.149286886del(GRCh37)]in the PDE6A gene in an endogamous family and a novel homozygous splice site mutation[NM_033100.3:c.1168-1G>A,Chr10:g.85968484G>A(GRCh37)]in the CDHR1 gene in a consanguineous family were *** PDE6A variant p.(Gln352Argfs*4)was predicted to be deleterious or pathogenic,whilst the CDHR1 variant c.1168-1G>A was predicted to result in potential alteration of ***:This study expands the spectrum of genetic variants for arRP in Pakistani families.

关键词： autosomal recessive retinitis pigmentosa PDE6A CDHR1 variants Pakistani families

RePizer：a framework for prioritization of software requirements

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Frontiers of Information Technology & Electronic Engineering 2016年第8期17卷 750-765页

作者： Saif Ur Rehman KHAN Sai Peck LEE Mohammad DABBAGH muhammad tahir Muzafar KHAN muhammad ARIF Department of Software Engineering Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur 50603 Malaysia Faculty of Computing and Information Technology University of Jeddah Jeddah 21589 Saudi Arabia College of Computer and Information Sciences (Muzahmiyah Branch) King Saud University Riyadh 11362 Saudi Arabia Department of Computer Science University of Gujrat Gujrat 50700 Pakistan

The standard software development life cycle heavily depends on requirements elicited from stakeholders. Based on those requirements, software development is planned and managed from its inception phase to closure. Due to time and resource constraints, it is imperative to identify the high-priority requirements that need to be considered first during the software development process. Moreover, existing prioritization frameworks lack a store of historical data useful for selecting the most suitable prioritization technique of any similar project domain. In this paper, we propose a framework for prioritization of software requirements, called Re Pizer, to be used in conjunction with a selected prioritization technique to rank software requirements based on defined criteria such as implementation cost. ReP izer assists requirements engineers in a decision-making process by retrieving historical data from a requirements repository. Re Pizer also provides a panoramic view of the entire project to ensure the judicious use of software development resources. We compared the performance of Re Pizer in terms of expected accuracy and ease of use while separately adopting two different prioritization techniques, planning game（PG） and analytical hierarchy process（AHP）. The results showed that Re Pizer performed better when used in conjunction with the PG technique.

关键词： Software requirements Requirements prioritization techniques Prioritization framework Planning game Analytical hierarchy process

Vegetation of Ranikot Fort Area, a Historical Heritage of Sindh, Pakistan

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American Journal of Plant Sciences 2014年第15期5卷 2207-2214页

作者： Nabila Shah Jilani Syeda Saleha tahir muhammad tahir Rajput Institute of Plant Sciences University of Sindh Sindh Pakistan

The investigation on the vegetation and flora of the Ranikot Fort area was undertaken during 2009-2013. Ranikot Fort Area is a historical heritage of Sindh. So far there has been no publication on vegetation of this important historic site. 89 plant species belonging to 69 genera and 32 families are identified which include monocot, dicots and pteridophytes. This contribution provides information on plant biodiversity of Ranikot, a natural heritage of Sindh, Pakistan.

关键词： Diversity Ranikot Fort Families Species

巴基斯坦旁遮普中部地区稻田蜘蛛的活动(英文)

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动物学报 2008年第4期54卷 701-711页

作者： Hafiz muhammad tahir Abida BUTT Department of Zoology University of Punjab

为研究巴基斯坦旁遮普(Punjab)中部稻田中蜘蛛群落的多样性与特征,我们在Punjab的4个主要产稻区Lahore、Sialkot、Sheikupura、和Kasur使用陷阱诱捕以及吸虫器进行研究,共记录了隶属于12科30属40种的27658头蜘蛛。采样地区间有相似的科... 详细信息

为研究巴基斯坦旁遮普(Punjab)中部稻田中蜘蛛群落的多样性与特征,我们在Punjab的4个主要产稻区Lahore、Sialkot、Sheikupura、和Kasur使用陷阱诱捕以及吸虫器进行研究,共记录了隶属于12科30属40种的27658头蜘蛛。采样地区间有相似的科别以及组成,总体多样性以及均匀性无差异。然而,多度以及丰富度随不同取样地点而异。蜘蛛的群落具有很强的季节性,受洪水以及杀虫剂的影响。农田蜘蛛的组成随作物组成而变化。

关键词：蜘蛛多样性季节性同种团结构水稻