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Rectal varices vs hemorrhoids-diagnosis and management

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World Journal of Hepatology 2024年第11期16卷 1216-1218页

作者： zain majid Taha Yaseen Abbas Ali Tasneem Nasir Hassan Luck Department of Hepatogastroenterology Sindh Institute of Urology and TransplantationKarachi 74200Pakistan 不详

Rectal varices are an uncommon manifestation of portal *** hemorrhoids can be seen in cirrhotic patients,distinguishing between rectal varices and hemorrhoids can be ***,the underlying mechanism and treatment options ***,the correct identification is of utmost *** this letter,we highlight the features of both and listed the distinguishing points between the two etiologies.

关键词： Rectal varices Hemorrhoids Portal hypertension Cirrhosis Bleeding Pain

Inflammatory bowel disease in Pakistan:Low prevalence or underdiagnosis?

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World Journal of Gastrointestinal Pharmacology and Therapeutics 2024年第6期15卷 51-53页

作者： Zubia Zaman zain majid Dr.Ruth K.M.Pfau Civil Hospital Karachi Civil Hospital KarachiKarachi 74100SindhPakistan Department of Gastroenterology Sindh Institute of Urology and TransplantationKarachi 75500Pakistan

Inflammatory bowel disease(IBD)has a low prevalence in the Global South,including *** genetics and gut flora,influenced by diet and the environment,can contribute to this,we are exploring the possibility of *** of facilities trained in IBD,scarcity of medications,limited health insurance for specialist referral and the current epidemic of abdominal tuberculosis could be the *** increasing diagnosis of IBD among Pakistani immigrants and colorectal carcinoma among the young population might be the result of *** referrals by primary care physicians to gastroenterologists,along with the growing use of newer technologies such as abdominal ultrasound for diagnosis can help mitigate the challenge of low or late diagnosis of this chronic condition.

关键词： Inflammatory bowel disease Crohn’s disease Ulcerative colitis Pakistan Third world country

Revolution in the diagnosis and management of hepatitis C virus infection in current era

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World Journal of Hepatology 2022年第4期14卷 647-669页

作者： Farina M Hanif zain majid Nasir Hassan Luck Abbas Ali Tasneem Syed Muddasir Laeeq Muhammed Mubarak Department of Hepatogastroenterology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan Department of Histopathology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan

Chronic hepatitis C virus(HCV)infection is a major global public health problem,particularly in developing part of the *** advances have been made in the early diagnosis and treatment of the *** management has been particularly revolutionized during the past two *** this review,we summarize the major advances in the diagnostic and management armamentarium for chronic HCV *** focus of the present review is on the newer directly acting anti-viral agents,which have revolutionized the management of chronic HCV *** of uncomplicated chronic HCV infection and of specific complications and special at-risk populations of patients will be covered in *** the advent and approval of highly effective and well tolerable oral agents,still many challenges remain,particularly the affordability,the equitable distribution and access to later *** World Health Organization aims to eliminate viral hepatitis including HCV by 2030 since its poses a major public health *** is an urgent need to ensure uniform and early access to diagnostic and therapeutic facilities throughout the world if the later goal has to be realized.

关键词： Hepatitis C virus Interferons Diagnosis Management Directly acting antiviral agents

Hepatic manifestations of coronavirus disease 2019 infection:Clinical and laboratory perspective

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World Journal of Virology 2022年第6期11卷 453-466页

作者： Farina M Hanif zain majid Shoaib Ahmed Nasir H Luck Muhammed Mubarak Department of Hepatogastroenterology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan Department of Pathology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan

The novel coronavirus disease 2019(COVID-19)pandemic,caused by severe acute respiratory syndrome coronavirus 2,has become a global challenge of unprecedented nature since December *** most patients with COVID-19 exhibit mild clinical manifestations and upper respiratory tract involvement,in approximately 5%-10%of patients,the disease is severe and involves multiple organs,leading to multi-organ dysfunction and *** liver and gastrointestinal tract are also frequently involved in *** the context of liver involvement in patients with COVID-19,many key aspects need to be addressed in both native and transplanted *** review focuses on the clinical presentations and laboratory abnormalities of liver function tests in patients with COVID-19 with no prior liver disease,patients with pre-existing liver diseases and liver transplant recipients.A brief overview of the history of COVID-19 and etiopathogenesis of the liver injury will also be described as a prelude to better understanding the above aspects.

关键词： COVID-19 Liver injury SARS-CoV-2 Clinical manifestations Liver function tests Cirrhosis

Underground blast effects on structural pounding

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Earthquake Engineering and Engineering Vibration 2022年第3期21卷 617-639页

作者： Muhammed zain Kangda Nilesh Mate Sachin Bakre School of Civil Engineering REVA UniversityBengaluru 560064India Amrutvahini College of Engineering SangamnerAhmednagar 422608India Department of Applied Mechanics Visvesvaraya National Institute of TechnologyNagpur 440010India

In the present study,actual three-dimensional structures are converted into a stick model of multi degree of-freedom(MDOF)systems for understanding the macro-behavior of *** study investigates the performance of three closely spaced,adjacent G+10,fixed-base MDOF systems with the mass aligned at the same levels and subjected to accidental underground blast *** acceleration time history of underground blast loading is generated based on past empirical *** blast charge weight varies from 10 to 75 t while keeping the charge distance constant(R=100 m).The entire formulation is solved with the MATLAB solver,using the state space form *** cases are considered,based on changing the position of the three stick *** first case considered left building rigid,middle building moderate rigid,and right building *** second assumed left building flexible,middle building rigid,and right building moderate *** third examined the left building as moderate rigid,the middle building as flexible,and the right building *** analysis of the results shows that the arrangement with low stiffness,high stiffness,and moderately stiff buildings placed to the left,middle,and right side,respectively,yields minimum structural response when compared to the other two combinations.

关键词： structural pounding building positions MDOF stick system stiffness factor blast ground motion

Dynamic properties of fuzzy Petri net model and related analysis

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Journal of Central South University 2015年第12期22卷 4717-4723页

作者：周恺卿 Azlan Mohd zain 莫礼平 Soft Computing Research Group Faculty of ComputingUniversiti Teknologi Malaysia UTM Skudai College of Information Science and Engineering Jishou University

Fuzzy Petri net(FPN) has been extensively applied in industrial fields for knowledge-based systems or systems with *** the applications of FPN are known to be successful,the theoretical research of FPN is still at an initial *** pave a way for further study,this work explores related dynamic properties of FPN including reachability,boundedness,safeness,liveness and *** whole methodology is divided into two *** the first phase,a comparison between elementary net system(EN_system) and FPN is established to prove that the FPN is an extensive formalism of Petri nets using a backwards-compatible extension ***,current research results of dynamic properties are utilized to analyze FPN *** results illustrate that FPN model is bounded,safe,weak live and fair,and can support theoretical evidences for designing related decomposition algorithm.

关键词： fuzzy Petri net elementary net system backwards-compatible extension method dynamic properties

Deep Learning-Based Robust DC Fault Protection Scheme for Meshed HVDC Grids

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CSEE Journal of Power and Energy Systems 2023年第6期9卷 2423-2434页

作者： Muhammad zain Yousaf Hui Liu Ali Raza Ali Mustafa the School of Electrical Engineering Guangxi UniversityNanning 530004China the School of Electrical Engineering University of LahoreLahore 39161Pakistan the School of Electrical Engineering Xi’an Jiaotong UniversityXi’an 710049China

Fast and reliable detection of faults is a significant technical challenge in transient-based protection for a modular multi-level converter(MMC)based high voltage direct current(HVDC)*** is because existing protection schemes rely heavily upon setting a complicated protective threshold,the failure of which causes high DC-fault currents in HVDC grids,and MMC is prone to such strong transient *** this context,this paper proposes a DC-line fault diagnosis technique based on a tuned long-short-term memory(LSTM)algorithm to improve the response and accuracy of transient-based *** discrete wavelet transform(DWT)extracts the transient features of DC-line voltages in the frequency-time *** healthy and faulty samples are incorporated during training even by considering the noise *** training,numerous test samples are run to evaluate the proposed algorithm’s robustness under various fault *** results show the proposed algorithm can detect DC faults and has a high recognition accuracy of 98.6%.Compared to contemporary techniques,it can perform well to identify DC-line faults because of the efficient training of characteristic features.

关键词： High voltage direct current(HVDC) longshort-term-memory(LSTM) primary protection voltage source converters(VSC)

Reconfigurable intelligent surface-aided wireless communications: An overview

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Intelligent and Converged Networks 2022年第1期3卷 33-63页

作者： Muhammad zain Siddiqi Talha Mir Department of Electronic Engineering Tsinghua UniversityBeijing 100084China Department of Electronic Engineering Faculty of ICTBUITEMSQuetta 87300Pakistan

The reconfigurable intelligent surface(RIS)is an emerging technology,which will hopefully bring a new revolution in wireless *** RIS technology can be deployed in an indoor/outdoor environment to dynamically manipulate the propagation *** RIS consists of a large number of independently controllable passive elements,and these elements are involved in realizing high passive beamforming *** from the conventional active phased antenna array,there is no dedicated radio-frequency(RF)chain installed at the RIS to perform complex signal processing ***,it does not incur additional noise while retransmitting the incident wave,which is substantially a unique feature from the conventional wireless communication *** advantage of its working principle,RIS has been deployed in various practical *** this tutorial,at first we will review the latest advances in RIS,including the application scenarios such as the system and channel model,the information theoretic analysis,the physical realization and design,key signal processing techniques such as precoding and channel estimation,and ***,we discuss interesting future research problems for the RIS-aided communications.

关键词： reconfigurable intelligent surface(RIS) wireless communications new paradigm

Multi-omics insights into neuronal regeneration and re-innervation

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Neural Regeneration Research 2021年第2期16卷 296-297页

作者： Muhammad zain Chauhan Sanjoy K.Bhattacharya University of Arkansas for Medical Sciences(UAMS) Little RockARUSA(Chauhan MZ)Miami Integrative Metabolomics Research CenterBascom Palmer Eye Institute Program In Biomedical Sciences and Neuroscience Graduate Program University of MiamiMiamiFLUSA

The regeneration of peripheral nervous system and central nervous system(CNS)neurons after injury remains *** have come a long way since the identification of a 37 k Da protein specific for regenerating peripheral ner... 详细信息

关键词： al. nerves insight