Vladimir Nikolic

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Materials based on polystyrene and starch copolymers are used in food packaging, water pollution treatment, and textile industry, and their biodegradability is a desired characteristic. In order to examine the degradation patterns of modified, biodegradable derivates of polystyrene, which may keep its excellent technical features but be more environmentally(More)
To evaluate the efficacy and safety of preoperative radiotherapy with capecitabine and mitomycin C in patients with locally advanced rectal cancer. A prospective, open-label, non-randomized, phase II study was performed on 49 patients with locally advanced rectal cancer. Preoperative radiotherapy was conducted on linear accelerators (15 or 18 MV) with a(More)
This paper discusses the development of an analytical support system for implementation of the Integrated Water Resources Management (IWRM) process. The system integrates four analytical tools: (i) geographic information system; (ii) system dynamics simulation; (iii) agent-based model; and (iv) hydrologic simulation. The choice of tools is driven by their(More)
AIMS Accurate clinical assessment of liver fibrosis is essential and the aim of our study was to compare and combine hemodynamic Doppler ultrasonography, liver stiffness by transient elastography, and non-invasive serum biomarkers with the degree of fibrosis confirmed by liver biopsy, and thereby to determine the value of combining non-invasive method in(More)
Novel macromolecular graft copolymers were synthesized by reaction of the hydroxyl groups of the microbial polysaccharide levan, produced using Bacillus licheniformis, with polystyrene (Lev-g-PS). Synthesis was performed by the free radical reaction using potassium persulfate (PPS) as initiator. The prepared copolymer was characterized by FTIR, SEM, TG/DTA,(More)
By definition, integrated water resources management (IWRM) deals with planning, design and operation of complex systems in order to control the quantity, quality, temporal and spatial distribution of water with the main objective of meeting human and ecological needs and providing protection from water disasters. Complexity is a result of water resources(More)
BACKGROUND AND AIMS Acute-on-chronic liver failure (ACLF) is characterized by a rapid progression to multiple organ failure and is associated with a very high mortality rate of 50-90%. Novel therapies are being investigated such as Erythropoietin (EPO). The aim of this prospective cohort study was to analyse the value of EPO in predicting prognosis and(More)
In this paper we refer to the very important role of detailed and advanced planning, as well as to the optimization of radio network of the next generation wireless networks that offers multimedia traffic. Next generation mobile operators that are adapting 3G mobile technologies and beyond are facing more and more challenges connected to the design and(More)
BACKGROUND AND AIMS To translate into Serbian and validate the Primary Biliary Cholangitis-40 (PBC-40) and PBC-27 questionnaires. MATERIALS AND METHODS Ninety-four consecutive outpatients with the diagnosis of PBC from three departments across two tertiary care institutions in Belgrade were enrolled from February to October 2016. Standard methodology for(More)
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