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Pain and function deteriorate in patients awaiting total joint arthroplasty that has been postponed due to the COVID-19 pandemic

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World Journal of Orthopedics 2021年第3期12卷 152-168页

作者： Jurek Rafal Tomasz Pietrzak Zia Maharaj Magdalena Erasmus Nkhodiseni Sikhauli Josip nenad Cakic Lipalo Mokete Department of Orthopaedics University of the WitwatersrandJohannesburg 2193GautengSouth Africa Department of Orthopaedic Surgery Charlotte Maxeke Johannesburg Academic HospitalJohannesburg 2193GautengSouth Africa Department of Orthopaedic Surgery Life FourwaysJohannesburg 2193GautengSouth Africa

BACKGROUND Elective total joint arthroplasty(TJA)procedures have been postponed as part of the coronavirus disease 2019(COVID-19)response to avert healthcare system *** hip arthroplasty(THA)and total knee arthroplasty(TKA)procedures comprise the highest volume of elective procedures performed at health care facilities *** To determine the demand for TJA despite the pandemic and the impact of surgery postponement on physical and mental *** We conducted a prospective cross-sectional telephonic interview-based study on patients awaiting THA and TKA at an academic institution in South *** questionnaire consisted of four *** first section recorded baseline demographic data and medical co-morbidities,the length of time spent awaiting TJA,and the patients’desire to undergo elective surgery despite the COVID-19 *** 2 and Section 3 assessed the patients’current physical and mental health,respectively,as a consequence of deferred surgical *** last section established the patients’perception of the healthcare system’s response to the COVID-19 pandemic and necessity to postpone elective *** received counseling and education on the current state of surgery during the COVID-19 pandemic and associated ***,patients were once again asked about their desire to undergo TJA during the COVID-19 *** We included 185 patients(65.95%female;mean age:50.28 years)awaiting TJA for a mean of 26.42±30.1 ***,88.65%of patients wanted TJA despite the COVID-19 *** awaiting TJA for 1-3 years were 3.3-fold more likely to want surgery than those waiting<1 year(P<0.000).Patients with comorbidities were 8.4-fold less likely to want TJA than those with no comorbidities(P=0.013).After receiving education,the patients wanting TJA decreased to 54.05%.Patients who changed their opinion after education had less insight on the increased morbidity(P=0.046)and mortality(P=0.001)asso

关键词： Total hip arthroplasty Total knee arthroplasty Elective surgery COVID-19 Waiting lists Primary total joint arthroplasty

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Quo vadis cardiac rehabilitation;the role of comprehensive cardiac rehabilitation in modern cardiology

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World Journal of Cardiology 2023年第12期15卷 627-632页

作者： nenad Lakušić Ivana Sopek Merkaš Department of Cardiology Special Hospital for Medical Rehabilitation Krapinske TopliceKrapinske Toplice 49217Croatia Department of Clinical Medicine Faculty of Dental Medicine and Health OsijekJ.J.Strossmayer University of OsijekOsijek 31000Croatia Department of Internal Medicine Family Medicine and History of MedicineFaculty of Medicine OsijekJ.J.Strossmayer University of OsijekOsijek 31000Croatia

In accordance with the guidelines established by prominent European and global cardiology associations,comprehensive cardiac rehabilitation(CR)stands as an officially endorsed and highly recommended therapeutic approach(class I recommendations;level of evidence A)for a diverse spectrum of cardiac ***,it is a cause for concern to observe that fewer than 50%of eligible patients are being effectively referred for CR,whether in an outpatient or in-patient ***,studies reveal that a substantial proportion of individuals with atherosclerotic cardiovascular disease maintain unhealthy lifestyles and exhibit suboptimal management of modifiable cardiovascular risk factors,including hypertension,lipid levels,and *** the conven-tional patient profile encompassing those recovering from acute coronary syndrome with or without percutaneous coronary intervention,as well as patients who have undergone coronary or valvular surgery,contemporary CR now emphasizes specialized subgroups of *** include frail elderly patients,the female population with its unique considerations,individuals burdened by multiple cardiovascular comorbidities,those who have developed psychological consequences due to a cardiac illness and particularly those grappling with chronic heart *** editorial seeks to offer a state-of-the-art assessment of the significance and role of comprehensive CR within modern cardiology.

关键词： Cardiac rehabilitation Chronic heart failure Treatment of heart failure Cardiovascular disease Psychological disorders Posttraumatic stress disorder

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Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils

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Transactions of Nonferrous Metals Society of China 2017年第9期27卷 1907-1919页

作者： Milan T.JOVANOVI? nenad ILI? Ivana CVIJOVI?-ALAGI? Vesna MAKSIMOVI? Slavica ZEC Department of Materials Science Institute of Nuclear Sciences "Vin?a"University of Belgrade

Experimental results on processing,structural and mechanical characterization of a multilayer composite based on commercially pure aluminum foils were presented.A multilayer composite was produced by hot-rolling of anodized and non-anodized aluminum foils alternately *** addition,the same process was applied for bonding of non-anodized *** both cases,obtained multilayer composites were compact and *** order to study composites microstructural evolution and mechanical properties,optical and scanning electron microscopy(SEM),energy dispersive spectrometry(EDS),X-ray diffraction(XRD)analysis,hardness,tensile and three-point flexural tests were *** characterization confirmed that the rod-like particles distributed in parallel rows in the composite aluminum matrix with anodized foils correspond to *** and minimum peaks of oxygen and aluminum,respectively,suggest that after the final hot-rolling of composite with non-anodized foils,a small amount of coarser particles were formed at boundaries between ***,strength,modulus of elasticity and flexural strength of both multilayer composites were much higher than those of pure aluminum,whereas ductility was significantly *** composite with anodized foils exhibited the highest strength and modulus of elasticity,but lower ductility compared to composite processed from non-anodized *** failure corresponded to the change of ductility.

关键词： aluminum foils anodization multilayer composite Al2O3 particles strength fracture

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Histopathological Characteristics of Atrophic Gastritisin Adult Population

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Journal of Pharmacy and Pharmacology 2015年第3期3卷 133-138页

作者： Marija Milicevic Snezana Bozanic nenad Solajic Department of Pathology Faculty of Medicine University of Novi Sad Novi Sad 21000 Serbia

Introduction： Chronic gastritis is inflammation of the gastric mucosa. It can be non-atrophic and atrophic. Atrophy isdefined as the loss of appropriate glands. It is frequently located in antral mucosa as consequence of Helicobacter pylori infectionand it is associated with intestinal gastric cancer. Goal： Describe histopathological and demographic characteristics of atrophicgastritis. Matherial and methods： We assessed the pathological reports of 100 patients with atrophic gastritis whose characteristicswere evaluated by using a semiquantitative scale of Sidney system of classification of gastritis. To assess the significance betweenthe incidence of various parametres we used ;~2 test. Results： We found that the difference in frequency of atrophic gastritis betweenmen and women was not statistically significant. The difference in distribution is statistically significant in favor of the *** patients who have atrophy with Helicobacterpylori infection and intestinal metaplasia and those who do not have metaplasia,it was found that the difference is highly statistically significant. Conclusion： The most frequent localisation of atrophic gastritis isantral mucosa. There is no difference between men and women in frequency of atrophic gastritis, while the aging is related with moreoften occurrence of atrophic gastritis.

关键词： Gastritis, atrophic, metaplasia, Helicobacterpylori.

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Semantic 3D City Database—An enabler for a dynamic geospatial knowledge graph

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能源与人工智能(英文) 2021年第4期6卷 130-142页

作者： Arkadiusz Chadzynski nenad Krdzavac Feroz Farazi Mei Qi Lim Shiying Li Ayda Grisiute Pieter Herthogs Aurel von Richthofen Stephen Cairns Markus Kraft Cambridge Centre for Advanced Research and Education in Singapore(CARES) CREATE Tower1 Create WaySingapore138602Singapore Singapore-ETH Centre CREATE Tower1 Create WaySingapore138602Singapore Department of Chemical Engineering and Biotechnology University of CambridgePhilippa Fawcett DriveWest SiteCB30AS CambridgeUK School of Chemical and Biomedical Engineering Nanyang Technological University62 Nanyang DriveSingapore637459Singapore

This paper presents a dynamic geospatial knowledge graph as part of The World Avatar project,with an underlying ontology based on CityGML 2.0 for three-dimensional geometrical city *** comprehensively evaluated,repaired and refined an existing CityGML ontology to produce an improved version that could pass the necessary tests and complete unit test development.A corresponding data transformation tool,originally designed to work alongside CityGML,was *** allowed for the transformation of original data into a form of semantic *** compared various scalable technologies for this semantic data storage and chose Blazegraph™as it provided the required geospatial search *** also evaluated scalable hardware data solutions and file systems using the publicly available CityGML 2.0 data of Charlottenburg in Berlin,Germany as a working *** structural isomorphism of the CityGML schemas and the OntoCityGML Tbox allowed the data to be transformed without loss of *** geospatial search algorithms allowed us to retrieve building data from any point in a city using *** use of named graphs and namespaces for data partitioning ensured the system performance stayed well below its capacity *** was achieved by evaluating scalable and dedicated data storage hardware capable of hosting expansible file systems,which strengthened the architectural foundations of the target system.

关键词： CityGML Sustainability Digitisation Urban planning Semantic web Knowledge graph Ontology Decision support system Artificial intelligence Geospatial modelling Geospatial search

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Application of Stone as a Roofing in the Reconstruction and Construction

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Journal of Civil Engineering and Architecture 2012年第7期6卷 919-924页

作者： nenad Sekularac Jelena Ivanovic Sekularac Jasna Cikic Tovarovic Faculty of Architecture University of Belgrade Belgrade 11000 Serbia

In architecture, in the past, different materials were used for covering of the buildings. The selection of the type of roofing depended on the purpose and size of the building; thus all the churches, administrative buildings and important medieval buildings were originally covered with stone or lead slabs as the final roofing material. The tendency of return of stone as an authentic roofing in the reconstruction of medieval buildings and churches, as well as the introduction of stone as a roofing on the new buildings in protected historic cores, is possible only if fulfilled modem principles and requirements of the physics of construction. The application of modem principles of double ventilated roofs and the use of stone as a roofing enables the restoration and preservation of the original appearance of medieval buildings, as well as the preservation and conservation of existing frescoes that have been present for centuries in these facilities. It also enables a successful reconstruction of a large number of medieval buildings. In this way it has been given a contribution to the preservation of old medieval buildings as the improvement of world cultural heritage.

关键词： Stone slabs double ventilation of roofs reconstruction of medieval buildings.

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Vehicle Tracking in the Process of Transport of Dangerous Goods GPS/GSM Technology

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Computer Technology and Application 2016年第3期7卷 123-128页

作者： Goran Tepic nenad Simeunovic Stevan Milisavljevie Nemanja Tasic Department of Industrial Engineering and Management Faculty of Technical Science Novi Sad Novi Sad 21000 Serbia

In the paper it has reviewed the monitoring of vehicles in the transport of hazardous substances based on the using of GPS/GSM technology. The basic principles of the GPS concept and hardware have been exhibited which are implemented in locating the vehicle. They have also identified the locating techniques underlying the monitoring process. It has presented an active system for monitoring parameters of the means of transport.

关键词： GPS/GSM risk dangerous goods hazardous materials transportation.

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Cloud Computing Applications in Global Logistics Information System Infrastructure

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Journal of Traffic and Transportation Engineering 2013年第1期1卷 30-38页

作者： Vladimir llin Dragan Simic Vasa Svircevic nenad Saulic Department for Traffic Engineering Faculty of Technical Sciences University of Novi Sad Novi Sad 21000 Serbia Lames d. o. o. Sremska Mitrovica Novi Sad 21000 Serbia

Information and communication technology （ICT） and systems are essential for every business. They can be used in retail, manufacturing and other industries. Nevertheless, new and innovative ideas and solutions are constantly emerging and introducing new possibilities for the reorganization of traditional logistics processes. Particularly, attention is given to basic concept of CC （cloud computing） service models and opportunities in logistics. This paper provides comprehensive review and comparison of different ICT solutions and CC applications. As a new and cutting-edge technology, CC is changing the form and function of information technology infrastructures making supply chain information collaboration easy and feasible. It can also be an enabler of fully electronic logistics management systems. Adoption of CC concept involves strong hardware support, good internet connectivity and implied reorganization of traditional business activities.

关键词： Cloud computing information and communication technology logistics supply chain service models.

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Four Years of Operating Experience with DryFiningTM Fuel Enhancement Process at Coal Creek Generating Station

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Journal of Energy and Power Engineering 2015年第6期9卷 526-538页

作者： nenad Sarunac Charles W. Bullinger Mark Ness Department of Mechanical Engineering and Engineering Science University of North Carolina at Charlotte Charlotte NC 28223 USA Great River Energy Coal Creek Station Underwood ND 58576 USA

Lignite and sub-bituminous coals from western U.S. contain high amounts of moisture （sub-bituminous： 15%-30%, lignites： 25%-40%）. German and Australian lignites （brown coals） have even higher moisture content, 50% and 60%, respectively. The high moisture content causes a reduction in plant performance and higher emissions, compared to the bituminous （hard） coals. Despite their high-moisture content, lignite and sub-bituminous coals from the western U.S. and worldwide are attractive due to their abundance, low cost, low NOx and SOx emissions, and high reactivity. A novel low-temperature coal drying process employing a fluidized bed dryer and waste heat was developed in the U.S. by a team led by GRE （Great River Energy）. Demonstration of the technology was conducted with the U.S. Department of Energy and GRE funding at Coal Creek Station Unit 1. Following the successful demonstration, the low-temperature coal drying technology was commercialized by GRE under the trade name DryFiningTM fuel enhancement process and implemented at both units at Coal Creek Station. The coal drying system at Coal Creek has been in a continuous commercial operation since December 2009. By implementing DryFining at Coal Creek, GRE avoided $366 million in capital expenditures, which would otherwise be needed to comply with emission regulations. Four years of operating experience is described in this paper.

关键词： Power generation pulverized coal combustion high-moisture coals coal beneficiation efficiency improvement emissions reduction.

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Maximum independent set in planning freight railway transportation

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Frontiers of Engineering Management 2018年第4期5卷 499-506页

作者： Gainanov Damir N Mladenovic nenad Rasskazova V.A. Ural Federal University EkaterinburgRussia Serbian Academy of Sciences and Arts BelgradeSerbia Moscow Aviation Institute MoscowRussia

This work is devoted to the problem of planning of freight railway transportation. We define a special conflict graph on the basis of a set of acceptable train routes. The investigation aims to solve the classical combinatorial optimization problem in relation to the maximum independent set of vertices in undirected *** level representation of the graph and its tree are introduced. With use of these constructions, the lower and upper bounds for the number of vertices in the maximum independent set are obtained.

关键词： independent set algorithm planning of transportation two-sided estimate

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