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Long-term outcomes of titanium-nitride-oxide coated stents and drug-eluting stents in acute coronary syndrome:A systematic review and meta-analysis

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World Journal of Cardiology 2024年第5期16卷 293-305页

作者： Muhammad Ahmed Ali Fahim Afia Salman Hira Anas Khan Syed Muhammad Hasan Muskan FatimaBhojani Sarah Aslam Amna zia Ul Haq Vishal Reddy Bejugam Beena Muntaha Nasir Wajiha Gul Abdul Moeed Abdelrahman S Abdalla Muhammad Majid Muhammad Sohaib Asghar Md Al Hasibuzzaman Department of Internal Medicine Dow University of Health SciencesKarachi 74200Pakistan Department of Internal Medicine North Central Bronx HospitalBronxNY 10467United States Department of Urology Center for Academic MedicineStanford University School of MedicinePalo AltoCA 33872United States Department of Cardiovascular Imaging Cleveland ClinicClevelandOH 44195United States Division of Nephrology and Hypertension Mayo Clinic RochesterRochesterMN 55905United States Institute of Nutrition and Food Science University of DhakaDhaka 1000Bangladesh

BACKGROUND In severe cases of coronary artery disease,percutaneous coronary intervention provide promising *** stent used could be a drug-eluting stent(DES)or a titanium-nitride-oxide coated stent(TiNOS).AIM To compare the 5-year effectiveness and safety of the two stent *** The following systematic review and meta-analysis was conducted in accordance with the preferred reporting items for systematic reviews and meta-analysis guidelines,and PubMed/MEDLINE,Scopus,and Cochrane Central were searched from inception till August *** outcomes were major adverse cardiac events(MACE),cardiac death,myocardial infarction(MI),cardiac death or MI,and ischemia-driven total lesion revascularization(ID-TLR).RESULTS Four randomized controlled trials(RCT),which analyzed a sum total of 3045 patients with acute coronary syndrome(ACS)after a median follow-up time of 5 years were *** statistically insignificant,an increase in the ID-TLR was observed in patients receiving TiNOSs vs *** addition,MI,cardiac death and MI,and definite stent thrombosis(DST)were significantly decreased in the TiNOS *** analysis revealed no significant results with meta-regression presenting non-ST elevated MI(NSTEMI)as a statistically significant covariate in the outcome of *** TiNOS was found to be superior to DES in terms of MI,cardiac death or MI,and DST outcomes,however,the effect of the two stent types on ID-TLR and MACE was not significant.A greater number of studies are required to establish an accurate comparison of patient outcomes in TiNOS and DES.

关键词： Stents Drug-eluting Major adverse cardiac events All-cause death Meta-analysis

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Comparative investigation of microstructure and high-temperature oxidation resistance of high-velocity oxy-fuel sprayed CoNiCrAlY/nano-Al_(2)O_(3) composite coatings using satellited powders

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International Journal of Minerals,Metallurgy and Materials 2023年第9期30卷 1779-1791页

作者： Pejman Zamani zia Valefi Faculty of Materials and Manufacturing Technologies Malek Ashtar University of TechnologyIsfahan 83145/115Iran

Satellited CoNiCrAlY–Al_(2)O_(3)feedstocks with 2wt%, 4wt%, and 6wt% oxide nanoparticles and pure CoNiCrAlY powder were deposited by the high-velocity oxy fuel process on an Inconel738 superalloy substrate. The oxidation test was performed at 1050℃ for 5, 50, 100,150, 200, and 400 h. The microstructure and phase composition of powders and coatings were characterized by scanning electron microscopy and X-ray diffraction, respectively. The bonding strength of the coatings was also evaluated. The results proved that with the increase in the percentage of nanoparticles(from 2wt% to 6wt%), the amount of porosity(from 1vol% to 4.7vol%), unmelted particles, and roughness of the coatings(from 4.8 to 8.8 μm) increased, and the bonding strength decreased from 71 to 48 MPa. The thicknesses of the thermally grown oxide layer of pure and composite coatings(2wt%, 4wt%, and 6wt%) after 400 h oxidation were measured as 6.5, 5.5, 7.6, and 8.1 μm, *** CoNiCrAlY–2wt% Al_(2)O_(3)coating showed the highest oxidation resistance due to the diffusion barrier effect of well-dispersed nanoparticles. The CoNiCrAlY–6wt% Al_(2)O_(3)coating had the lowest oxidation resistance due to its rough surface morphology and porous microstructure.

关键词： MCrAlY coating CoNiCrAlY-Al_(2)O_(3)composite satellited feedstock microstructure high-temperature oxidation high-velocity oxy-fuel spraying

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B-DRIVE:A blockchain based distributed IoT network for smart urban transportation

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Blockchain(Research and Applications) 2021年第4期2卷 37-48页

作者： Mohammed zia GIScience Chair Institute of GeographyUniversity of HeidelbergHeidelberg69120Germany

In this paper,I present B-DRIVE—a blockchain-based distributed IoT(Internet of Things)network for smart urban *** network is designed to connect a large fleet of IoT devices,installed on various vehicles and roadside infrastructures,to distributed data storage centers,called as Full-Nodes,to log and disseminate sensor generated *** connects devices from around the city to multiple Full-Nodes to log timestamped data into the *** sensors vary from GPS(Global Positioning System),air quality meter,gyrometer to speed cameras in order to facilitate efficient urban *** three identified hardware layers that comprise the network are the IoT layer,Storage layer,and User *** consist of Moving/Static-Nodes,Full-Nodes,and Smart devices,*** Moving/Static-Nodes are primarily made up of moving vehicles and road-side infrastructures,respectively,thus acting as various data ***,Full-Nodes and Smart devices are institutions and mobile phones,acting as data handler/disseminator and navigator/data visualizer,*** data,or data blocks,received by Full-Nodes get appended into Full and Running-Blockchain,meant for specific *** network is designed to be free from any block mining *** provides open access to anonymous sensor data to end-users,especially scientists,policy-makers and entrepreneurs,to develop innovative urban transportation *** is believed that a system like B-DRIVE,along with existing VANETs(Vehicular Ad-hoc NETworks),is capable of answering some of the current urban transportation issues around traffic congestion,navigation,and vehicle *** applications of blockchain data could vary from user activity mapping to VGI(volunteered geographic information)data quality *** identified limitations of the presented architecture are the low processing power of current IoT devices and the lack of urban IoT infrastructure.

关键词： Blockchain Open data Urban traffic Internet of Things Vehicle navigation

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Visible–light driven photocatalytic degradation of bisphenol-A using ultrasonically synthesized polypyrrole/K-birnessite nanohybrids:Experimental and DFT studies

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Journal of Environmental Sciences 2019年第5期31卷 161-173页

作者： Jannatun zia Mohamed Ajeer Ufana Riaz Materials Research Laboratory Department of ChemistryJamia Millia Islamia

Although manganese oxides are known for their semiconductor characteristics, the photocatalytic performance of conducting polymer intercalated K-Birnessite(K-Bi) has not been explored till date. With the view to design a visible light driven organic–inorganic hybrid photocatalyst for rapid degradation of Bisphenol A(BPA), the present work reports the ultrasound-assisted green synthesis of K-Bi/polypyrrole(Ppy) nanohybrids. The loading of Ppy in K-Bi was confirmed by thermogravimetric analysis while the formation of organic–inorganic hybrid was confirmed by infrared spectroscopy. K-Bi revealed a band gap of 2.8 e V while for the nanohybrids it was found to be ranging between 2.4 and 1.6 e V. X-ray diffraction studies confirmed partial intercalation of Ppy chains in the inter-layer space of K-Bi. High resolution transmission electron microscopy and scanning electron microscopy studies showed mixed morphology of K-Birnessite/Ppy nanohybrids. Rapid degradation of BPA was observed under visible irradiation in presence of K-Bi/Ppy nanohybrids and almost90% degradation of 20 mg/L BPA solution was achieved within 120 min. The degradation was found to follow pseudo-first order kinetics and the degraded fragments were identified using liquid chromatography-mass spectrometry. Degradation pathway was proposed based on density-functional theory calculations of fukui index predicting the radical easyattacking(f0) and(f-) sites in BPA.

关键词： Photocatalysis Degradation kinetics Manganese oxide Polypyrrole DFT calculations

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Structural design and mechanical performance of composite vascular grafts

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Bio-Design and Manufacturing 2022年第4期5卷 757-785页

作者： Abdul Wasy zia Rong Liu Xinbo Wu School of Fashion and Textiles The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARChina

This study reviews the state of the art in structural design and the corresponding mechanical behaviours of composite vascular grafts. We critically analyse surface and matrix designs composed of layered, embedded, and hybrid structures along the radial and longitudinal directions;materials and manufacturing techniques, such as tissue engineering and the use of textiles or their combinations;and the corresponding mechanical behaviours of composite vascular grafts in terms of their physical–mechanical properties, especially their stress–strain relationships and elastic recovery. The role of computational studies is discussed with respect to optimizing the geometrics designs and the corresponding mechanical behaviours to satisfy specialized applications, such as those for the aorta and its subparts. Natural and synthetic endothelial materials yield improvements in the mechanical and biological compliance of composite graft surfaces with host arteries. Moreover,the diameter, wall thickness, stiffness, compliance, tensile strength, elasticity, and burst strength of the graft matrix are determined depending on the application and the patient. For composite vascular grafts, hybrid architectures are recommended featuring multiple layers, dimensions, and materials to achieve the desired optimal flexibility and function for complying with user-specific requirements. Rapidly emerging artificial intelligence and big data techniques for diagnostics and the threedimensional(3D) manufacturing of vascular grafts will likely yield highly compliant, subject-specific, long-lasting, and economical vascular grafts in the near-future.

关键词： Vascular grafts Surface design Structural design Composite materials Mechanical properties

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Mainstreaming Early Warning Systems in Development and Planning Processes: Multilevel Implementation of Sendai Framework in Indus and Sahel

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International Journal of Disaster Risk Science 2015年第2期6卷 189-199页

作者： Asim zia Courtney Hammond Wagner Department of Community Development and Applied Economics University of Vermont Department of Computer Science University of Vermont Rubenstein School of the Environment and Natural Resources University of Vermont

The third UN World Congress on Disaster Risk Reduction, held in Sendai, Japan in March 2015, agreed on a new framework to guide disaster risk reduction policy and practice for the next 15 years. The Sendai Framework for Disaster Risk Reduction 2015–2030(SFDRR) leaves important implementation issues unspecified and potentially creates both problems and opportunities for complex,multilevel governance systems in coping with hazards and disastrous events. Early warning systems(EWS), if built into the mainstream of planning for development and disaster relief and recovery, could present a significant opportunity to realize many SFDRR goals. We explore the complexities of using hydrometeorological EWS to prepare for drought and flood disasters in the densely populated communities of Pakistan’s Indus River Basin in contrast to the African Sahel’s less densely settled grasslands. Multilevel governance systems are often dominated by a topdown, technocentric, centralized management bias and have great difficulty responding to the needs of peripheral and vulnerable populations. People-centered, bottom-up approaches that incorporate disaggregated communities with local knowledge into a balanced, multilevel disaster risk management and governance structure have adramatically better chance of realizing the SFDRR goals for disaster risk reduction.

关键词： Early warning systems Infrastructure development Land-use planning Policy implementation Risk governance Sendai Framework Science-policy interface

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Biosynthesis of Flower-Shaped CuO Nanostructures and Their Photocatalytic and Antibacterial Activities

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Nano-Micro Letters 2020年第2期12卷 224-234页

作者： Hafsa Siddiqui MSQureshi Fozia zia Haque Department of Physics Sha-Shib College of Science and ManagementBhopal 462030India Optical Nanomaterial Lab Department of PhysicsMaulana Azad National Institute of TechnologyBhopal 462003India

Copper oxide nanoflowers(CuO-NFs)have been synthesized through a novel green route using Tulsi leaves-extracted eugenol(4-allyl-2-methoxyphenol)as reducing *** results reveal the growth of crystalline singlephase CuO-NFs with monoclinic *** prepared CuO-NFs can effectively degrade methylene blue with 90%*** also show strong barrier against ***(27±2 mm)at the concentration of 100μg mL−1,while at the concentration of 25μg mL−1 weak barrier has been found against all examined bacterial *** results provide important evidence that CuO-NFs have sustainable performance in methylene blue degradation as well as bacterial organisms.

关键词： Copper oxide O.Sanctum Eugenol Biosynthesis Photocatalysis Antibacterial

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Computational Analysis of the Oscillatory Mixed Convection Flow along a Horizontal Circular Cylinder in Thermally Stratified Medium

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Computers, Materials & Continua 2020年第10期65卷 109-123页

作者： zia Ullah Muhammad Ashraf Saqib zia Yuming Chu Ilyas Khan Kottakkaran Sooppy Nisar Department of Mathematics Faculty of ScienceUniversity of SargodhaSargodhaPakistan Department of Mathematics COMSATS University IslamabadIslamabad44000Pakistan Department of Mathematics Huzhou UniversityHuzhou313000China Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering Changsha University of Science&TechnologyChangsha410114China Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh72915Vietnam Department of Mathematics College of Arts and SciencesPrince Sattam bin Abdulaziz UniversityWadi Aldawaser11991Saudi Arabia

The present work emphasizes the significance of oscillatory mixed convection stratified fluid and heat transfer characteristics at different stations of non-conducting horizontally circular cylinder in the presence of thermally stratified *** remove the difficulties in illustrating the coupled PDE’s,the finite-difference scheme with efficient primitive-variable formulation is proposed to transform dimensionless *** numerical simulations of coupled non-dimensional equations are computed in terms velocity of fluid,temperature and magnetic field which are computed to examine the fluctuating components of skin friction,heat transfer and current density for various emerging *** governing parameters namely,thermally stratification parameter𝑆𝑆𝑡𝑡,mixed-convection parameter𝜆𝜆,Prandtl number Pr,magnetic force parameter𝜉𝜉and magnetic-Prandtl number𝛾𝛾are displayed graphically at selected values for velocity and heat transfer *** is computed that heat transfer attains maximum amplitude and good variations in the presence of thermally stratified parameter at each position𝛼𝛼=𝜋𝜋6⁄,𝛼𝛼=𝜋𝜋3⁄and𝛼𝛼=𝜋𝜋around the surface of non-conducting horizontally *** velocity of fluid attains certain height at station𝛼𝛼=𝜋𝜋6⁄for higher value of stratification *** is also found that the temperature gradient decreases with stratification parameter𝑆𝑆𝑡𝑡,but it increases after a certain distance𝑌𝑌from the *** novelty of the current work is that due to non-conducting phenomena the magnetic effects are strongly observed far from the surface but exact at the surface are zero for each position.

关键词： Mixed-convection oscillatory stratified flow non-conducting cylinder thermal stratification heat transfer.

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Nanocellulose isolation characterization and applications:a journey from non-remedial to biomedical claims

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Bio-Design and Manufacturing 2019年第3期2卷 187-212页

作者： Sania Naz Joham S.Ali Muhammad zia Department of Biotechnology Quaid-i-Azam University IslamabadIslamabadPakistan

Cellulose is a renewable,biodegradable,ecofriendly and sustainable *** market of nanocellulose is comprehensively very high due to its *** of nanocellulose from bacteria and plant results in different morphology and size of ***,mechanical strength,biofabrication,crystallinity,high surface area per unit mass,hydrophilicity,porosity,transparency and non-toxicity of bacterial cellulose make it more *** extravagant nanoscaled three-dimensional network of cellulosic structures possess extraordinary properties for biomedical application,evidencing its usage in skin therapy,cardiovascular implants,cartilage meniscus implants,tissue engineering,bone tissue and neural implants,wound care products,drug delivery agents,tablet modification,tissue engineered urinary conduits,and synthesis of artificial *** due to potential benefits associated with nanocellulose effective and efficient techniques are required for the isolation of nanocellulose that should be economical,ecofriendly and non-toxic.

关键词： Nanocellulose Plant and bacterial source Extraction Applications

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Toxicity Evaluation of Green Synthesized Iron Oxide Nanoparticles in Sprague-Dawley Rats:Biochemical and Histological Assessment

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Biomedical and Environmental Sciences 2020年第11期33卷 882-886页

作者： Sania Naz Muhammad Majid Muhammad zia Department of Biotechnology Quaid-i-Azam University Islamabad Pakistan 45320 Department of Pharmacy Quaid-i-Azam University Islamabad Pakistan 45320

The exploitation of nanotechnology has increased in all ramifications due to the spectacular potential of nano-products(NPs).Among the nanoproducts,iron oxide(Fe2 O3)NPs has attracted more scientific attentions due it... 详细信息

关键词： characteristics. Iron Oxide

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