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World Journal of Clinical Cases 2025年第18期13卷 5-10页

作者： Mariam Abed Angus Bradley abbas ghazanfar Department of Renal Transplantation St George's University HospitalLondon SW170QTUnited Kingdom Renal and Transplant Unit St Georges University Hospitals NHS Foundation TrustLondon SW170QTUnited Kingdom

BACKGROUND Incisional hernia is one of the known complications of renal transplant surgery,with a reported incidence between 1.1%to 3.8%.Depending on the site and extent of incisional hernia,it may require surgery particularly if it contains the trans-planted kidney either partially or *** current common clinical prac-tice is to repair incisional hernias using polypropylene meshes,which have their own risks and *** meshes,which are made from human or animal-derived connective tissue,are also in use and have a less inflammatory ***,hybrid meshes have been *** are composed of both biological and synthetic *** such example is OviTex 1S perma-nent,which is a sterile reinforced tissue matrix composed of ovine(sheep)derived extracellular matrix and monofilament *** this case report,we are sharing our experience with the use of OviTex 1S in the repair of post-renal transplant incisional *** SUMMARY We report four cases of post-renal transplant incisional hernia with a median time of 27 months *** median size of the defect was 15 cm *** was no post-operative *** patient required renal transplant biopsy after mesh repair,which was easily performed compared with polypropylene meshes repaired hernias in the *** The OviTex 1S mesh provides benefits in hernial repairs pKTx,but cost is an issue,and their long-term viability is *** use and reporting will help build a more informed picture.

关键词： Incisional hernia Kidney transplantation Surgical mesh Hybrid mesh End stage renal failure Case report

Risk stratification of renal transplant recipients using routine parameters: Implication of learning from SARS-CoV-2 into transplant follow-up program

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World Journal of Transplantation 2023年第6期13卷 344-356页

作者： abbas ghazanfar Madiha abbas Md Walid Hussain Malik Kayal Renal and Transplant Unit St Georges University Hospitals NHS Foundation TrustLondon SW170QTUnited Kingdom Department of Anesthesia and Intensive Care Medicine Epsom and St Helier University Hospitals NHS TrustLondon KT87EGUnited Kingdom Department of Renal and Transplant Surgery St Georges University Hospitals NHS Foundation TrustLondon SW170QTUnited Kingdom

BACKGROUND Severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)infection is a global pandemic that is associated with a high risk of morbidity and mortality among recipients of solid organ *** the course of acute SARS-CoV-2 infection,various laboratory markers have been identified as predictors for high risk of *** To risk stratify renal transplant recipients(RTxR)using general demographic parameters,comorbidities and routine laboratory markers for the severity of the disease and its *** believe that learning about these routinely monitored parameters can help us plan better strategies for the RTxR follow-up *** This present study includes RTxR who acquired SARS-CoV-2 infection from March 2020 to February *** recorded the basic demographics,comorbidities and routine laboratory *** investigated the impact of SARS-CoV-2 infection on RTxRs and risk-stratified the progression of disease severity and outcomes in terms of recovery or *** From 505 RTxRs in our renal transplant follow-up program,29(7.75%)RTxRs had PCR-positive SARS-CoV-2 *** recorded 8 deaths from SARS-CoV-2 infection giving an overall mortality rate of 1.6%but a significant 27.6%mortality in SARS-CoV-2 positive *** more than 68 years,non-Caucasian ethnicity and male gender were associated with a significant drop in survival probability;P≤0.001.<0.001 and<0.0001 respectively.87.5%of the deceased were diabetic;P≤*** glomerular filtration rate of less than 26 mL/min/1.73 m2,serum albumin less than 20 g/L,Hemoglobin less than 9.6 g/L and serum calcium less than 1.70 mmol/L were all associated with significantly increased risk of mortality;P=0.0128,<0.001,<0.0001 and 0.0061 *** This study has identified some routinely used modifiable parameters in predicting a higher risk of mortality and *** knowledge can be used in RTxR follow-up programs by addressing these parameters

关键词： SARS-CoV-2 mortality Renal transplant recipients Glomerular filtration rate Anemia Albumin Calcium Reducing morbidity and mortality Renal transplant follow-up program

An integrated approach for GLOF hazard,vulnerability and risk assessment in the Karakoram Mountain Range of northern Pakistan

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Journal of Mountain Science 2025年第1期22卷 142-155页

作者： Sajid ULLAH Muhammad SHAFIQUE ghazanfar Ali KHATTAK Attaullah SHAH Yaseen ULLAH National Centre of Excellence in Geology University of PeshawarPeshawar 25000Pakistan GIS and Space Application in Geosciences National Centre of GIS and Space Applications(NCGSA)Islamabad 44000Pakistan Karakoram International University Gilgit 15100Pakistan

Climate change and rising temperatures are accelerating the rate of deglaciation in the Hindu Kush Karakoram Himalaya(HKH)ranges,leading to the formation of new glacial lakes and the expansion of existing *** lakes are often vulnerable to failure,posing a significant threat to downstream communities and ***,a comprehensive assessment of Glacier-Lake Outburst Flood(GLOF)hazards and risk assessment is crucial to evaluate flood runout characteristics and identify settlements and infrastructure that are exposed and vulnerable to floods,aiding in the development and implementation of risk reduction *** study aims to simulate a GLOF event induced by the Shisper glacier lake in northern Pakistan,using the HEC-RAS,and to assess its impact on settlements,infrastructure,and agricultural *** the hydrometeorological analysis of the GLOF event,topographic data from unmanned aerial vehicles(UAVs),stream profiles,discharge data,Manning's roughness coefficient(n),and land use/land cover(LULC)were analyzed using HEC-RAS and geographic information system(GIS).During the GLOF event on May 7,2022,a maximum water depth of 6.3 m and a maximum velocity of 9.5 m/s were *** on the runout characteristics of this event,vulnerability and risk assessments have been *** physical,social,and environmental vulnerabilities of the at-risk elements were evaluated using the analytical hierarchy process(AHP)and integrated with the hazard data to develop a risk *** study identified the areas,infrastructure and settlements susceptible to GLOF hazard to support the development and implementation of targeted and evidence-based mitigation and adaptation strategies.

关键词： GLOF Hazard assessment Glacial lake HEC-RAS Vulnerability and risk Shisper glacier

Seismic resilience of retrofitted RC buildings

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Earthquake Engineering and Engineering Vibration 2020年第3期19卷 561-571页

作者： ghazanfar Ali Anwar You Dong Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina

Existing buildings can be at a greater seismic risk due to non-conformance to current design codes and may require structural retrofitting to improve building *** performance of buildings is measured in terms of immediate consequences due to direct damage,but the continuing impacts related to recovery are not considered in seismic retrofit *** paper introduces a framework of retrofit selection based on the seismic resilience of deficient buildings retrofitted with the conventional mitigation *** assembly-based methodology is considered for the seismic resilience assessment by compiling a nonlinear numerical model and a building performance *** collapse fragility is developed from the capacity curve,and the resulting social,economic,and environmental consequences are *** seismic resilience of a building is assessed by developing a downtime assessment methodology incorporating sequence of repairs,impeding factors,and utility *** functionality states are developed for the building functionality given investigated time interval,and a functionality curve for each retrofit is *** is concluded that seismic resilience can be used as a performance indicator to assess the continuing impacts of a hazard for the retrofit selection.

关键词： fitted consequences buildings

Ebola, the killer virus

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Infectious Diseases of Poverty 2015年第1期4卷 146-151页

作者： Haider ghazanfar Fizza Orooj Muhammad Ahmed Abdullah Ali ghazanfar Shifa College of Medicine Pitras Bukhari Road H-8/4IslamabadPakistan Federal Medical and Dental College Prime Minister’s National Health ComplexChak ShahzadIslamabadPakistan

Ebola virus disease(EVD)has mostly affected economically deprived countries as limited resources adversely affect a country’s infrastructure and *** into the factors that led to the widespread outbreak,setting forth plans to counter EVD cases in developing countries,and devising definitive measures to limit the spread of the disease are essential steps that must be immediately *** this review we summarize the pathogenesis of EVD and the factors that led to its *** also highlight interventions employed by certain countries that have successfully limited the epidemic,and add a few preventive measures after studying the current *** to the available data,barriers to prevent and control the disease in affected countries include irresolute and disorganized health systems,substandard sanitary conditions,poor personal hygiene practices,and false beliefs and stigma related to *** public health sector along with the respective chief authorities in developing countries must devise strategies,keeping the available resources in mind,to deal with the outbreak before it *** a first step,communities should be educated on EVD’s symptoms,history,mode of transmission,and methods of protection,including the importance of personal hygiene practices,via seminars,newspapers,and other social media.A popular opinion leader(POL)giving this information would further help to remove the misconception about the nature of the disease and indirectly improve the quality of life of affected patients and their families.

关键词： Ebola hemorrhagic fever Epidemiology Ebola virus/physiology Hemorrhagic fever Ebola/transmission Ebola/prevention and control

Non-Associative Algebra Redesigning Block Cipher with Color Image Encryption

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Computers, Materials & Continua 2021年第4期67卷 1-21页

作者： Nazli Sanam Asif Ali Tariq Shah ghazanfar Farooq Department of Mathematics Quaid-i-Azam UniversityIslamabad44000Pakistan Department of Computer Science Quaid-i-Azam UniversityIslamabad44000Pakistan

The substitution box(S-box)is a fundamentally important component of symmetric key *** S-box is a primary source of non-linearity in modern block ciphers,and it resists the linear *** approaches have been adopted to construct S-boxes.S-boxes are commonly constructed over commutative and associative algebraic structures including Galois fields,unitary commutative rings and cyclic and non-cyclic finite *** this paper,first a non-associative ring of order 512 is obtained by using computational techniques,and then by this ring a triplet of 8×8 S-boxes is *** motivation behind the designing of these S-boxes is to upsurge the robustness and broaden the key space due to non-associative and noncommutative behavior of the algebraic structure under consideration.A novel color image encryption application is anticipated in which initially these 3 S-boxes are being used to produce confusion in three layers of a standard RGB ***,for the sake of diffusion 3D Arnold chaotic map is used in the proposed encryption scheme.A comparison with some of existing chaos and S-box dependent color image encryption schemes specs the performance results of the anticipated RGB image encryption and observed as approaching the standard prime level.

关键词： Block cipher s-box nonlinearity color image encryption 3D chaotic map

A Comparison of Image Processing Techniques for Optical Interference Fringe Analysis

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Photonic Sensors 2015年第4期5卷 304-311页

作者： Muhammad FAROOQ Aasma ASLAM Babar HUSSAIN ghazanfar HUSSAIN Masroor IKRAM National Institute of Lasers and Optronics Lehtrar Road lslamabad 45650 Pakistan Hazara University Mansehra and NUST lslamabad 21300 Pakistan University of North Carolina at Charlotte Department of Electrical and Computer Engineering 9201 University City Boulevard Charlotte 28223 USA pakistan Institute of Engineering and Applied Sciences lslamabad 45650 Pakistan

We present a comparison of different techniques for the analysis of the shift and tilt in optical interference fringes. Fringe center, Radon transform, and Gaussian approximation methods are used for fringe analysis. We have measured the tilt and shift between two relevant fringe pattems. The error in tilt measurement was about 2%, and the displacement of the order of few nanometers was measured by the fringe shift analysis. The comparison between the techniques is analyzed with respect to percentage error.

关键词： Interferometry fringes tilt shift imaging

Long-term sustainability and resilience enhancement of building portfolios

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Resilient Cities and Structures 2023年第2期2卷 13-23页

作者： ghazanfar Ali Anwar You Dong Mustesin Ali Khan Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Fire Safety Engineering University of Central LancashireDohaQatar

The role of community building portfolios in socioeconomic development and the growth of the built environ-ment cannot be *** to these structures can have far-reaching consequences on socioeconomic and environmental aspects,requiring a long-term perspective for *** communities aim to enhance their resilience and sustainability,there is a cost burden that needs to be *** address this issue,this pa-per proposes a community-level performance enhancement approach that focuses on optimizing the long-term resilience and sustainability of community building portfolios,taking into account recurrent seismic hazards.A Gaussian process surrogate-based multi-objective optimization framework is utilized to optimize the cost objec-tive while considering performance indicators for resilience and *** proposed framework involves using performance-based assessment methods to evaluate the socioeconomic and environmental consequences under stochastic and recurrent seismic hazard *** evaluated indicators are then used to efficiently optimize the community resilience and sustainability,taking into account the retrofit ***,approximate Pareto-optimal solutions are extracted and utilized for *** summary,this paper presents a novel approach for optimizing the long-term resilience and sustainability of community building portfolios by consid-ering recurrent seismic *** proposed framework incorporates performance-based assessment methods and multi-objective optimization techniques to achieve an optimal balance between cost,resilience,and sustain-ability,with the ultimate goal of enhancing community well-being and decision-making in the face of seismic hazards.

关键词： Multi-objective Long-term Seismic hazards Sustainability Resilience Socioeconomic Environmental Buildings Optimization Decision-making

Post-hepatectomy liver failure:A timeline centered review

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Hepatobiliary & Pancreatic Diseases International 2023年第6期22卷 554-569页

作者： Mohamed Bekheit Lisa Grundy Ahmed KA Salih Petru Bucur Eric Vibert Mudassar ghazanfar Department of Surgery NHS GrampianForesterhill Health CampusAshgrove RoadAB252ZN AberdeenUK Institute of Medical Sciences Medical SchoolForesterhill Health CampusAshgrove RoadAB252ZN AberdeenUK Hépatica Integrated Center of HPB CareElite HospitalAgriculture RoadAlexandriaEgypt Department of Surgery University Hospital ToursVal de la Loire 37000France Centre Hépatobiliaire Paul Brousse Hospital12 Paul Valliant Couturier94804 VillejuifFrance

Background: Post-hepatectomy liver failure(PHLF) is a leading cause of postoperative mortality after liver surgery. Due to its significant impact, it is imperative to understand the risk stratification and preventative strategies for PHLF. The main objective of this review is to highlight the role of these strategies in a timeline centered way around curative resection. Data sources: This review includes studies on both humans and animals, where they addressed PHLF. A literature search was conducted across the Cochrane Library, Embase, MEDLINE/Pub Med, and Web of Knowledge electronic databases for English language studies published between July 1997 and June 2020. Studies presented in other languages were equally considered. The quality of included publications was assessed using Downs and Black’s checklist. The results were presented in qualitative summaries owing to the lack of studies qualifying for quantitative analysis. Results: This systematic review with 245 studies, provides insight into the current prediction, prevention, diagnosis, and management options for PHLF. This review highlighted that liver volume manipulation is the most frequently studied preventive measure against PHLF in clinical practice, with modest improvement in the treatment strategies over the past decade. Conclusions: Remnant liver volume manipulation is the most consistent preventive measure against PHLF.

关键词： Post-hepatectomy liver failure Liver neoplasms Prediction Prevention Management

Photocatalysis vs adsorption by metal oxide nanoparticles

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Journal of Materials Science & Technology 2022年第36期131卷 122-166页

作者： Usman Qumar Jahan Zeb Hassan Rukhsar Ahmad Bhatti Ali Raza ghazanfar Nazir Walid Nabgan Muhammad Ikram Solar Cell Applications Research Lab Department of PhysicsGovernment College University Lahore54000 PunjabPakistan Department of Physics University of Lahore(Chenab Campus)Adjacent Chenab BridgeGujrat50700 PunjabPakistan Department of Physics University of Sialkot(USKT)1-Km Main Daska RoadSialkot51040 PunjabPakistan Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea Departament d’Enginyeria Química Universitat Rovira i VirgiliAv Països Catalans 2643007 TarragonaSpain.

Background:Metal oxide(MO)nanomaterials and related nanocomposites have been extensively studied for their potential use in water *** of their controlled morphologies,texture qualities,variable surface chemistry,distinct crystalline nature,high stability,and tunable band edges,MO nanostructured materials are highly selective towards deleting organic contaminants and heavy metal ions via adsorption and semiconductor ***-enhanced photocatalysis has recently received increasing interest,mainly due to the ability of the metal to directly or indirectly degrade pollutants.A diverse selection of MOs,with titanium dioxide(Ti O2),zinc oxide(Zn O),iron oxides(IO),and tungsten(W),as well as graphene-MOs nanocomposites with variable structure,crystalline,and morphological properties,offers a powerful platform for the growth of effective ***:The current work discusses novel advancements and potential for the removal of adsorptive and photocatalytic degradation of organic compounds(phenolic,pesticide molecules,dyes,and so on)as well as heavy metal ions using semiconductor materials.A photocatalyst based on a MO-scheme heterostructure can manage the appropriate conduction band(CB)and valence band(VB)locations,securing considerable redox *** review should be of interest to the broad readership dealing with applied and fundamental aspects of water treatments and material *** strategies including surface modification,plasmonic enhancement,and metal cocatalysts have been introduced to enhance photocatalytic *** findings:The current article discussed the significantly utilized synthesis strategies and mechanism of heterojunction photocatalysts using a ***,adsorption sections guarantee that mercury,chromium,cadmium,arsenic,and lead-based ions are successfully removed from polluted water via the adsorption *** characteristics,such as concentration,coexisting ions,p H,and ki

关键词： Photocatalyst Adsorbate Metal Oxides Z-scheme Surface Modification Heterojunction Semiconductor heterostructures Nanoparticles