Miodrag Ostojić, Dragan Sagić, Robert Jung, Yanling Zhang, Milan Nedeljković, Ljupco Mangovski, Siniša Stojković, Dragan Debeljački, Mirko Čolić, Branko Beleslin, Bratislav Milosavljevic, Dejan Orlić, Dragan Topic, Nevena Karanović, Dragica Paunovic, Uwe Christians,
Abstract Objectives: The aim of this study was to assess the pharmacokinetics and tolerability of Biolimus A9 eluted from Nobori coronary stents. Background: The release kinetics and pharmacokinetics of drugs delivered via coronary stents have been shown to play an essential role in the efficacy and safety of drug eluting stents. Methods: Twenty patients with coronary artery disease were treated with single 14‐mm (10 patients) or 28‐mm long stent (10 patients). Blood samples were drawn at 16 time ...
Tópico(s): Biosimilars and Bioanalytical Methods
2008 - Wiley | Catheterization and Cardiovascular Interventions
Ivica Stojković, Dragan Stevanović,
Background. The first double-J (DJ) stents were manufactured in 1978. Their J-shaped tips efficiently prevent their migration from kidneys and from the urinary bladder. Nowadays, DJ stents are in common use because they provide efficient and relatively safe urinary derivation between the kidney and the urinary bladder. We report this case with the aim to point out possible serious complications with long-term indwelling stents. Case report. The patient was admitted to hospital five years after the ...
Tópico(s): Pediatric Urology and Nephrology Studies
2009 - Military Health Department, Ministry of Defance, Serbia | Vojnosanitetski pregled
Nikola Korunović, Miroslav Trajanović, Miloš Stojković, Dragan Mišić, Jelena Milovanović,
A finite element (FE) model for analysis of tire rolling on the drum, based on a specially developed CAD model, is presented in the paper.All the changes performed on the geometry of CAD model are automatically propagated to FE model.This makes the FE model very suitable for parametric studies, which help tire designer to quickly find the optimal values of tire design parameters.In this way the tire design process is shortened and the quality of resulting tires improved.The results of finite element ...
Tópico(s): Soil Mechanics and Vehicle Dynamics
2011 - University of Ljubljana | Strojniški vestnik – Journal of Mechanical Engineering
Nikola Vitković, Jelena Milovanović, Nikola Korunović, Miroslav Trajanović, Miloš Stojković, Dragan Mišić, Stojanka Arsić,
Geometrically accurate and anatomically correct threedimensional geometric models of human bones or bone sections are essential for successful pre-operative planning in orthopedic surgery. For such purposes, 3D polygonal models of bones are usually created based on Computer Tomography (CT) or Magnetic Resonance Imaging (MRI) data. In cases where there is no CT or MRI scan, or part of bone is missing, such three-dimensional polygonal models are difficult to create. In these situations predictive bone ...
Tópico(s): 3D Shape Modeling and Analysis
2013 - ComSIS Consortium | Computer Science and Information Systems
Milan Zdravković, Miroslav Trajanović, Miloš Stojković, Dragan Mišić, Nikola Vitković,
The efficiency and effectiveness of the daily practice in orthopedic surgery depend on the availability, interoperability and unique access to a wide set of information, related to the patient’s medical record and diagnosis, domain knowledge and available resources and staff. The most important of the tangible resources, needed for the therapeutic or preventive actions are orthopedic implants. In some cases, the implants may be highly complex and customized products, which need to be manufactured ( ...
Tópico(s): Biomedical Text Mining and Ontologies
2012 - Elsevier BV | Annual Reviews in Control
Marko Veselinović, Nikola Vitković, Miroslav Trajanović, Stojanka Arsić, Milorad Mitković, Miloš Stojković, Dragan Marinković,
Creating a sufficiently accurate digital model of human bone geometry for a specific patient is the starting point for personalized orthopaedic surgical treatment.Such geometrical model of a particular human bone serves as a template for designing personalized bone implant, which can be an endoprostheses, fixator plate or even scaffold.Due to that role, the geometry of a human bone model has to be reusable and modifiable.Otherwise, design of the corresponding personalized implant for a particular ...
Tópico(s): Engineering Technology and Methodologies
2018 - Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering i | Tehnicki vjesnik - Technical Gazette
B. B. Pradhan, A. Harutyunyan, Dragan Stojkovic, J. J. Grossman, Peihong Zhang, Milton Cole, Vincent H. Crespi, Hajime Goto, J. Fujiwara, P. P. Eklund,
Tópico(s): Chemical and Physical Properties of Materials
2002 - Springer Nature | Journal of materials research/Pratt's guide to venture capital sources
Dragan Stojković, M. Breuer, F. Durst,
A two-dimensional numerical study on the laminar flow past a circular cylinder rotating with a constant angular velocity was carried out. The objectives were to obtain a consistent set of data for the drag and lift coefficients for a wide range of rotation rates not available in the literature and a deeper insight into the flow field and vortex development behind the cylinder. First, a wide range of Reynolds numbers (0.01⩽Re⩽45) and rotation rates (0⩽α⩽6) were considered for the steady flow regime, ...
Tópico(s): Wind and Air Flow Studies
2002 - American Institute of Physics | Physics of Fluids
Dragan Stojkovic, Peihong Zhang, Paul E. Lammert, Vincent H. Crespi,
A graphene sheet is well known to be highly stable against chemisorption of a single hydrogen atom, since a puckered ${\mathrm{sp}}^{3}$ hybridized site heavily distorts the surrounding ${\mathrm{sp}}^{2}$ framework. However, successive adjacent chemisorbed hydrogen atoms can engage in a collective stabilization mediated by cooperative alternate puckering in the underlying carbon sheet. After several chemisorbed atoms, the binding energy for further adsorption changes sign and becomes favorable. This ...
Tópico(s): Surface Chemistry and Catalysis
2003 - American Physical Society | Physical review. B, Condensed matter
Dragan Stojković, Philipp A.E. Schön, M. Breuer, F. Durst,
To examine in detail the behavior of a new vortex shedding mode found in a previous investigation [Phys. Fluids 14, 3160 (2002)], a two-dimensional numerical study on the laminar incompressible flow past a rotating circular cylinder in the Reynolds number range 60⩽Re⩽200 and at rotational rates 0⩽α⩽6 was carried out. The results obtained clearly confirm the existence of the second shedding mode for the entire Reynolds number range investigated. A complete bifurcation diagram α(Re) was compiled defining ...
Tópico(s): Wind and Air Flow Studies
2003 - American Institute of Physics | Physics of Fluids
Dragan Stojkovic, Paul E. Lammert, Vincent H. Crespi,
Conversion of two diametrically opposed atomic rows on a carbon nanotube to $s{p}^{3}$ hybridization produces two identical weakly coupled one-dimensional electronic systems within a single robust covalently bonded package: a biribbon. Arm-chair tubes, when so divided, acquire a pair of narrow spin-polarized bands at the Fermi energy; interaction across the $s{p}^{3}$ dividers produces a tunable band splitting in the THz range. For semiconducting tubes, the eigenvalues of the low-energy electronic ...
Tópico(s): Quantum and electron transport phenomena
2007 - American Physical Society | Physical Review Letters
Naser Sahiti, A. Lemouedda, Dragan Stojković, F. Durst, Enrico Franz,
Pin fin arrays are frequently used for cooling of high thermal loaded electronic components. Whereas the pin fin accomplishment regarding heat transfer is always higher than that of other fin configurations, the high pressure drop accompanying pins seriously reduces their overall performance. In order to check how the form of pin cross-section influences the pressure drop and heat transfer capabilities, six forms of pin cross-section were numerically investigated. By employing the conjugate heat ...
Tópico(s): Turbomachinery Performance and Optimization
2005 - Elsevier BV | Applied Thermal Engineering
Tópico(s): Banking stability, regulation, efficiency
2013 - University of Kragujevac | Ekonomski horizonti
Dragan Stojković, Stipe Lovreta, Zoran Bogetić,
The purpose of this paper is to thoroughly analyse the concept of multichannel strategy, focussing on retail, to enable the academic community and marketers to better understand its advantages and disadvantages. This paper presents a comprehensive literature review and financial data analysis. The authors have analysed the financial data of 88 retail companies in the 2007 to 2014 period, and have proven that the importance of multichannel strategy has grown with the emergence of e-commerce. The ...
Tópico(s): Consumer Retail Behavior Studies
2016 - University of Belgrade Faculty of Economics | Economic Annals
Konstadinos Mattas, Efthimia Tsakiridou, Christos Karelakis, Dimitra Lazaridou, Matthew Gorton, Jelena Filipović, Carmen Hubbard, Monia Saïdi, Dragan Stojković, Barbara Tocco, Angela Tregear, Mario Veneziani,
The nexus of agri-food and sustainability in economic development has recently attracted the interest of policymakers, as global challenges like climate change and food security are revisited and reassessed. The critical role of food production in economic development has been emphasized through targeted agricultural quality policies. Many developed countries worldwide, including EU member states, have introduced food quality policies that could support sustainability. This paper combines knowledge ...
Tópico(s): Environmental Sustainability in Business
2021 - Elsevier BV | Trends in Food Science & Technology
Dragan Stojkovic, Peihong Zhang, Vincent H. Crespi,
We describe how sp(2) carbon, threefold coordinated by other carbons, can be replaced by sp(3) carbon, also threefold carbon coordinated, to produce extremely small-diameter ( approximately 0.4 nm) carbon nanowires with only minimal bond-angle distortion. Under a naming convention analogous to that for ordinary carbon nanotubes, the smallest sp(3) tubes have wrapping indices (3,0) and (2,2). These systems have large band gaps and a stiffness larger even than that of traditional sp(2)-bonded carbon nanotubes. ...
Tópico(s): Graphene research and applications
2001 - American Physical Society | Physical Review Letters
Elena R. Margine, Aleksey N. Kolmogorov, Dragan Stojkovic, Jorge O. Sofo, Vincent H. Crespi,
Exposure to elemental Cs generates graphitic domains within nanoporous carbon at only $50\phantom{\rule{0.2em}{0ex}}\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}$, well below the typical graphitization temperatures of $>1000\phantom{\rule{0.2em}{0ex}}\ifmmode^\circ\else\textdegree\fi{}\mathrm{C}$. We present a model of nanoporous carbon, the wormhole, which can express the fundamental topological elements of graphitization: a negative-curvature analog to ${\mathrm{C}}_{60}$ fullerene. The pathway to wormhole ...
Tópico(s): Catalytic Processes in Materials Science
2007 - American Physical Society | Physical Review B
Bhabendra K. Pradhan, A. Harutyunyan, Dragan Stojkovic, P. Zhang, Milton W. Cole, Vincent H. Crespi, Hajime Goto, J. Fujiwara, P. C. Eklund,
Tópico(s): Chemical and Physical Properties of Materials
2001 - Cambridge University Press | MRS Proceedings
Jelena Lazović, Dragan Stojkovic, Christopher M. Collins, Qing Yang, J. Thomas Vaughan, Michael B. Smith,
Abstract A novel hexagonal coil design for simultaneous imaging of multiple small animals is presented. The design is based on a coaxial cavity and utilizes the magnetic field formed between two coaxial conductors with hexagonal cross‐sections. An analytical solution describing the B 1 field between conductors of the hexagonal coil was found from the Biot‐Savart law. Both experimental results and analytical calculations showed a variation in the B 1 field within the imaging region of less than 10%. ...
Tópico(s): Electron Spin Resonance Studies
2005 - Wiley | Magnetic Resonance in Medicine
Goran Koraćević, Milan Stojković, Dragan Lović, Milan Pavlović, Tomislav Kostić, Marija Kutlešić, Sladjana Mićić, Maja Koraćević, M Djordjević,
A considerable amount of data supports a 1.8-7.4-fold increased mortality associated with Cushing's syndrome (CS). This is attributed to a high occurrence of several cardiovascular disease (CVD) risk factors in CS [e.g. adiposity, arterial hypertension (AHT), dyslipidaemia and type 2 diabetes mellitus (T2DM)]. Therefore, practically all patients with CS have the metabolic syndrome (MetS), which represents a high CVD risk. Characteristically, despite a relatively young average age, numerous patients with ...
Tópico(s): Thyroid and Parathyroid Surgery
2018 - Bentham Science Publishers | Current Vascular Pharmacology
Ivan J. Stojković, Olivera S. Stamenković, Dragan Povrenović, Vlada B. Veljković,
For commercial application, the ester product of alkali-catalyzed transesterification of vegetable oil or animal fats should be refined after glycerol separation by settling to fulfill the biodiesel standard specifications. This crude biodiesel, after neutralization and methanol removal, should be further cleaned by either one of the following methods: wet washing, dry washing, membrane extraction or using ion liquids. This paper presents a review on the traditional (wet and dry washing) and novel ( ...
Tópico(s): Microbial Metabolic Engineering and Bioproduction
2014 - Elsevier BV | Renewable and Sustainable Energy Reviews
Dragan Stojković, Aleksa Dokić, Božidar Vlačić, Susana Costa e Silva,
Purpose Newly established intersections between offline and online channels create room for enhancing inter-channel synergies. The nature and structure of emerging markets only further emphasize the need to expand existing knowledge. Consequently, this study investigates inter-channel synergy creation during offline–online retail integration in emerging markets. Design/methodology/approach Data collected from 97 companies in Serbia that incorporated online channels into their offline retailing businesses ...
Tópico(s): Digital Marketing and Social Media
2021 - Emerald Publishing Limited | International Journal of Emerging Markets
Dragan Mišic Mišic, Miloš Stojković, Dragan Domazet, Miroslav Trajanović, Miodrag Manić, Milan Trifunović,
This study presents exception detection in process management system, which uses active semantic model (ASM), a hybrid system comprising semantic networks, expert systems, object oriented programming and fuzzy logic. ASM is employed to capture semantic features of all kinds of workflow situations, as well as to detect and interpret exceptions.
Tópico(s): Semantic Web and Ontologies
2010 - NISCAIR | Journal of Scientific & Industrial Research
Michalis Hamilos, Miodrag Ostojić, Branko Beleslin, Dragan Sagić, Ljubco Mangovski, Siniša Stojković, Milan Nedeljković, Dejan Orlić, Bratislav Milosavljevic, Dragan Topic, Nevena Karanović, William Wijns,
The aim of our study was to compare coronary vasomotion after implantation of a second-generation biolimus A9-eluting stent (BES) and of a sirolimus-eluting stent (SES). Drug-eluting stents (DES) have been associated with impaired local coronary vasomotion, delayed endothelialization, and increased late thrombotic risk. New DES with different drugs, pharmacokinetics, and polymers have been developed. Nineteen patients with a BES and 15 patients with a SES were studied 9 months after stent implantation. ...
Tópico(s): Acute Myocardial Infarction Research
2008 - Elsevier BV | Journal of the American College of Cardiology
Tamara Djurić, Maja Živković, Djordje Radak, D Jekić, Sandra Radak, Ljiljana Stojković, R Raicević, Aleksandra Stanković, Dragan Alavantić,
Tópico(s): Connective tissue disorders research
2008 - Elsevier BV | Clinical Biochemistry
Dušan Mladenović, Nataša Petronijević, T. Stojković, Milica Velimirović, G. Jevtić, Dragan Hrnčić, Tatjana Radosavljević, Aleksandra Rašić-Marković, Nebojša Maksić, Dragan Djurić, Olivera Stanojlović,
Finasteride (FIN) inhibits neurosteroid synthesis and potentially improves the course of hepatic encephalopathy (HE). This study aimed to investigate the effects of FIN on brain oxidative stress and acetylcholinesterase (AchE) activity in acute thioacetamide-induced HE in rats. Male Wistar rats were divided into groups: 1. control; 2. thioacetamide-treated group (TAA; 900 mg/kg); 3. finasteride-treated group (FIN; 150 mg/kg); 4. group treated with FIN and TAA (FIN+TAA). Daily doses of FIN (50 mg/kg) and ...
Tópico(s): Neuroscience and Neuropharmacology Research
2015 - Public Library of Science | PLoS ONE
Maja Živković, Ana Kolaković, Ljiljana Stojković, Evica Dinčić, Smiljana Kostić, Dragan Alavantić, Aleksandra Stanković,
Tópico(s): Cytokine Signaling Pathways and Interactions
2016 - Elsevier BV | Journal of the Neurological Sciences
Vladimir M. Cvetković, Boban Milojković, Dragan Stojković,
Natural disasters of all types (meteorological, hydrological, geophysical, climatic and biological) are increasingly becoming a part of everyday life of the modern man. The consequences are often devastating to life, health and property of people, but also to the security of the country and the entire international community. Earthquakes belong to a group of geophysical disasters and occur very often, with the highest number of them being of lower intensity. Stronger earthquakes may cause extensive ...
Tópico(s): Insurance and Financial Risk Management
2014 - | Vojno delo
Vlado Cvijanović, Aleksandar Ristanović, Nebojša Marić, Nataša Vešović, Vanja Kostovski, Ljubinko Djenic, Dejan Stojković, Aleksandar S Nikolic, Dragan M Djordevic, Vesna Šuljagić,
Introduction: Surgical site infections (SSI) continue to be a major problem for thoracic surgery patients. We aimed to determine incidence rate (IR) and risk factors for SSI in patients with thoracic surgical procedures. Methodology: During 12 years of hospital surveillance of patients with thoracic surgical procedures, we prospectively identified SSI. Patients with SSI were compared with patients without SSI. Results: We operated 3,370 patients and 205 (6.1%) developed SSI postoperatively. We detected ...
Tópico(s): Cardiac, Anesthesia and Surgical Outcomes
2019 - Open Learning on Enteric Pathogens | The Journal of Infection in Developing Countries
Feng Zhang, Dragan Stojkovic, Vincent H. Crespi,
Several molecules are known to contain stable silicon double or triple bonds that are sterically protected by bulky side groups. Through first-principles computation, we demonstrate that well-defined π bonds can also be stabilized in a prototypical crystalline Si structure: Schwarzite Si-168, when modest negative pressures are applied to a nanoscale porous framework. The sp2-bonded Si-168 is thermodynamically preferred over diamond silicon at a negative pressure of −2.5 GPa. Ab-initio molecular dynamics ...
Tópico(s): High-pressure geophysics and materials
2010 - American Institute of Physics | Applied Physics Letters