148 results on '"Simic V"'
Search Results
2. A composite smeared finite element for mass transport in capillary systems and biological tissue
- Author
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Kojic, M., Milosevic, M., Simic, V., Koay, E.J., Fleming, J.B., Nizzero, S., Kojic, N., Ziemys, A., and Ferrari, M.
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- 2017
- Full Text
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Catalog
3. HPV-16 E5 oncoprotein upregulates lipid raft components caveolin-1 and ganglioside GM1 at the plasma membrane of cervical cells
- Author
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Suprynowicz, F A, Disbrow, G L, Krawczyk, E, Simic, V, Lantzky, K, and Schlegel, R
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- 2008
- Full Text
- View/download PDF
4. Treatment of Drop Foot Using an Implantable Peroneal Underknee Stimulator
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Strojnik, P, primary, Acimovic, R, additional, Vavken, E, additional, Simic, V, additional, and Stanic, U, additional
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- 2020
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5. Gas barrier and adhesion of interpenetrating polymer networks based on poly(diurethane bismethacrylate) and different epoxy–amine networks
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Simic, V, Boileau, S, Bouteiller, L, Gallez, L, and Merlin, P
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- 2002
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6. Jovanovići deposit: New formation type of dimension and construction stone in Montenegro
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Božović Darko M. and Simić Vladimir M.
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dimension and construction stone ,reserves ,quality ,potential ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Dimension and construction stone is one of the most significant non-metallic mineral raw material in Montenegro. There are numerous carbonate deposits in Montenegro (dimension and construction stone), either investigated or in exploitation, including the Bjelopavlići area which occupies the most significant place. Formation-mineragenic analysis of the carbonate sediments of the Bjelopavlići area revealed several formations of carbonate raw materials, including Jovanovići formation, as a new formation of dimension and construction stone in Montenegro. The paper presents the results of a multiyear formation-mineragenic analysis in the Bjelopavlići area, and the results of detailed geological exploration of the Jovanovići deposit of dimension and construction stone, calculated reserves, qualitative characteristics, possibility of their application and potential. The paper pays special attention to the examination of their sedimentological, biostratigraphic, and physico-mechanical characteristics. Results show that limestones of this formation type can be used as dimension stone. Also, the paper provides a brief overview of chemical, geochemical, and technological properties of these limestones with the possibility of their usage as a carbonate filler in various branches of industry. more...
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- 2023
7. Water quality of the Lepenica River: Overview and status in 2021
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Simić Snežana B., Rakonjac Aleksandra B., Čabrić Kristina D., Đorđević Nevena B., Simović Predrag M., Petrović Ana S., and Simić Vladica M.
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water quality ,water pollution ,ecological status assessment ,ecological potential assessment ,algae ,macroinvertebrates ,fishes ,Science - Abstract
The Lepenica River is the most important watercourse in the city of Kragujevac. Regardless of its importance, this river and its tributaries are extremely poorly investigated from a biological aspect. Only a few investigations were conducted from the end of the 20th century. After that, only physicochemical and microbiological parameters were monitored by scientists and Public Institutions. Our research was performed in 2021 at five localities at the Lepenica River and included an analysis of phytobenthos, macroinvertebrate, and fish communities, with the aim to assess ecological status/potential according to National Regulative. Our results indicate that the ecological status of this river was good (II class) only at one locality before the industrial and urbanized zone of the city of Kragujevac. From the entrance into the city of Kragujevac, the Lepenica River becomes highly polluted by multiple pollutants and belongs to the V class of ecological potential. more...
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- 2023
8. Medical emergency Team as an accidental witness to the ritual of exorcism performed on a pregnant Muslim woman
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Simić Vladimir, Anđelić Slađana, Nikolić Bojan, Milosavljević Goran, and Vukićević Verica
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exorcism ,emergency medical assistance ,pregnant woman ,islamic religion ,Medicine (General) ,R5-920 - Abstract
Introduction/Aim No known religion in the world has remained immune to the issue of magic, obsession, and exorcism. We present the first recorded case in our country, a religious exorcism ritual performed on a Muslim woman in her third month of pregnancy. The Emergency Medical Team (EMT) was dispatched to deal with sudden-onset abdominal pain which had occurred during the ritual of exorcism, to which the EMT was an unexpected witness. Case report The EMT responded to a call requesting medical assistance for an 18-year-old pregnant woman of Roma nationality and Muslim religion, who had experienced a short-term loss of consciousness accompanied by body tremors. Upon arriving at the scene, the EMT walked in on a religious ritual of exorcism, which was performed by a Muslim priest. After the ritual was completed, the patient was examined by the EMT doctor. The patient gave anamnestic data about sudden onset upper abdominal pain with an urge to vomit, which occurred about 15 minutes before the EMT was called. She associated her current condition with black magic and an evil force (a demon) that had entered her during a short walk. She stated that she had experienced this type of pain before but did not at that time ask for medical help, because the exorcism ritual had worked and resolved the situation. She denied having previous illnesses and medical treatments and stated that everything was fine during regular examinations by her gynaecologist. Upon examination, she was found to be afebrile, eupneic, euglycemic, and normotensive, with a normal heart rate, and naturally darker skin. Upon auscultation, her heart and lung sounds were found to be normal. When palpated, her abdomen was found to be soft and slightly painful in the stomach region. Her peristalsis was audible. The position of her uterus was normal inside the pelvis, the size of a larger orange or grapefruit. Other findings were normal. The patient was transported to a gynaecology and obstetrics hospital with the diagnosis of abdominal pain of unknown cause She was also referred to be examined by a psychiatrist. Conclusion In anticipation of new scientific views on this increasingly common topic, doctors find themselves in a position where they must find a balance between the patients' religious beliefs and realistic clinical diagnoses while caring for such patients, respecting moral, ethical, and legal norms. more...
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- 2023
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9. APPLICATION OF IN VITRO AND IN SITU BIOASSAYS FOR EVALUATION OF WATER GENOTOXIC POTENTIAL
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Đorđević Aleksić, Jelena, Jovanovic, J., Kolarevic, S., Miloskovic, A., Radojkovic, N., Simic, V., Dojcinovic, B., Kracun-Kolarevic, M., Paunovic, M, Kostić-Vuković, Jovana, Sunjog, Karolina, Timilijic, J, Gačić, Zoran, Zegura, B, Vukovic Gacic, B, Đorđević Aleksić, Jelena, Jovanovic, J., Kolarevic, S., Miloskovic, A., Radojkovic, N., Simic, V., Dojcinovic, B., Kracun-Kolarevic, M., Paunovic, M, Kostić-Vuković, Jovana, Sunjog, Karolina, Timilijic, J, Gačić, Zoran, Zegura, B, and Vukovic Gacic, B more...
- Abstract
Human activity has the great negative impact on water quality. As a consequence, deterioration of freshwater ecosystems has the effect on whole wildlife. Some of the pollutants which are realised into water could interact with DNA molecule and lead to DNA damage. The Velika Morava River is one of the larger tributaries of the Danube River. The major ecological problem of the Velika Morava River basin is discharging of municipal and industrial wastewaters. The aim of our study was the evaluation of genotoxic potential of the Velika Morava River basin. For this purpose, we employed battery of in vitro and in situ bioassays. From 9 selected sites the water samples and blood samples of Alburnus alburnus were collected. Within in vitro approach, the genotoxicity of water samples was tested using the SOS/umuC test on Salmonella thyphimurium TA1535/pSK1002 and alkaline comet assay on the HepG2 cell line. On the other hand, in situ approach included the alkaline and Fpg modified comet assay and the micronucleus test on bleak (A. alburnus) erythrocytes. The obtained results indicated differences of in vitro and in situ tests to evaluate genotoxic potential. The effects of genotoxicity were evident only in tests performed in situ, which is not surprising considering constant exposure of collected organisms to environmental stress. Differential sensitivity was found also within in situ tests where the alkaline comet assay showed the highest potential in distinguishing between sites. So, in accordance with results, we could conclude that application of the battery of in vitro and in situ bioassays is appropriate for assessment of genotoxic potential. more...
- Published
- 2018
10. FDI and Economic Growth: A new Look from the Sectoral Perspective
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Šimić Vladimir and Malešević-Perović Lena
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fdi ,economic growth ,sectoral data ,manufacturing ,f21 ,f43 ,c23 ,o47 ,l6 ,Business ,HF5001-6182 - Abstract
This paper investigates the impact of foreign direct investment (FDI) on economic growth in a sample of 10 ex-socialist European and Asian countries. While the link between FDI and economic growth has been extensively investigated in empirical literature, this paper contributes to this literature by econometrically investigating the effects of FDI inflows in specific sectors using the panel data estimation techniques. In addition to confirming the positive impact of total FDI inflows on economic growth, using the WiiW (the Vienna Institute for International Economic Studies) FDI database, which disentangles the FDI data across different industries, the paper finds significant effects of FDI inflows in manufacturing on growth, whereas FDI inflows in other sectors are only sporadically statistically significant. This finding serves as a basis for further investigation of the specific subsectors (NACE 2-letter classification) within manufacturing, and the empirical investigation finds that not all FDI inflows within manufacturing enhance economic growth. more...
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- 2022
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11. Erratum: HPV-16 E5 oncoprotein upregulates lipid raft components caveolin-1 and ganglioside GM1 at the plasma membrane of cervical cells
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Suprynowicz, F A, Disbrow, G L, Krawczyk, E, Simic, V, Lantzky, K, and Schlegel, R
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- 2008
- Full Text
- View/download PDF
12. P1.09-10 Molecular Immunocytochemistry in Various NSCLC Samples Prepared as Non-Cell Block Cytology
- Author
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Smojver-Ježek, S., Branica, B. Vrabec, Šimić, V., Harabajsa, S., Marušić, A., Badovinac, S., Pleština, S., Kukulj, S., and Jakopovic, M.
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- 2019
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13. Population-genetics analysis of the brown trout broodstock in the 'Panjica' hatchery (Serbia) and its conservation applications
- Author
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Veličković Tijana, Snoj Aleš, Bravničar Jernej, Simić Vladica, Šanda Radek, Vukić Jasna, Barcytė Dovilė, Stanković David, and Marić Saša
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molecular marker discordance ,artificial propagation ,atlantic brown trout ,danubian brown trout ,supplementation stocking ,Aquaculture. Fisheries. Angling ,SH1-691 - Abstract
Artificial propagation and stocking of brown trout is a standard practice in recreational fishery management. In recent decades, the importance of maintaining intraspecific diversity and protecting locally adapted lineages has been recognized for the species' long-term survival. The first step in selecting donors for stocking involves distinguishing native trout from non-native and introgressed individuals. The established method for discerning Atlantic hatchery strains from the wild populations involves genetic screening of individual diagnostic SNPs and microsatellite assignment tests. This study, using Serbia's Panjica hatchery as an example, illustrates the proper conduct of routine genetic screening for identifying suitable donors for supportive stocking. The broodstock and reference populations were screened using mtDNA control region, LDH nuclear gene, and 12 microsatellite loci to assess the origin, diversity, and inbreeding levels. The analysis revealed only moderate contamination with Atlantic trout and showed the regional origin of the Danubian genes – over 50% of the broodstock was composed of non-introgressed Danubian individuals tracing their origin to the Zapadna Morava River system. Additionally, the study highlighted a considerable discordance between LDH locus and microsatellites in identifying introgressed individuals, raising concerns about the sole reliance on LDH locus for the identification of Atlantic genetic origin in nuclear DNA. more...
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- 2024
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14. Coupling fluid and solid domains in modeling drug transport within tumor
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Kojic, M., Miljan Milosevic, Simic, V., Ziemys, A., and Ferrari, M.
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Finite element method ,Elements finits, Mètode dels ,Tumor model, Pipe Finite Element, Fictitious 1D Finite Element, Coupled Problems ,Coupled problems (Complex systems) -- Numerical solutions ,Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits [Àrees temàtiques de la UPC] - Abstract
Development of a feasible model for transport within complex vasculature network and tissue remains a challenge. Such a model is particularly important when considering drug transport within tumor environment. A drug used to cure the cancer is first transported through blood vessels, then it attaches to the vessel endothelium and faces biological barriers in the vessel wall to reach cancerous cells. We have developed a model for convective-diffusive drug transport which is simple and computationally efficient. One of the challenges was to couple fluid domain within blood vessels and solid domain of the tumor microenvironment. We have introduced fictitious 1D finite elements which appropriately take into account transport characteristics of the vessel walls. These characteristics include leakage and permeability of the walls. In evaluating wall permeability of a drug, we implemented our hierarchical multiscale methodology which couples molecular dynamics (MD) and continuum FE model. A numerical homogenization procedure was employed to obtain equivalent continuum transport parameters which account for interaction on molecular level between drug and solid components of the wall microstructure. Also, a possibility of using equivalent continuum transport models for capillary beds is investigated in order to further simplify and increase efficiency for the overall model of tumor. As a numerical example, we calculate transport through a capillary bed to illustrate applicability of our methodology. more...
- Published
- 2015
15. The first observation of the presence of microplastics in wild common bleak (Alburnus alburnus L.) and standardization of extraction protocols
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Nikolić Marijana D., Milošković Aleksandra M., Jakovljević Marija M., Radenković Milena D., Veličković Tijana Z., Đuretanović Simona R., Kojadinović Nataša M., Nikolić Marina M., and Simić Vladica M.
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bioindicators ,digestion protocol ,fibers ,freshwater ,gruža reservoir ,serbia ,Science - Abstract
The presence of microplastics (MPs) in the gastrointestinal tract, muscle, and whole-body samples of common bleak Alburnus alburnus L. from Gruža Reservoir (Central Serbia) was studied for the first time. Different protocols for MPs extraction were applied to determine the most efficient one. The study aimed to modify existing protocols to be cost-effective, efficient in digestion, and with no detrimental effect on potentially present MPs polymers. In this study, the digestion with 10% KOH during 48 h at 40°C was efficient for the gastrointestinal tract and muscle. Digestion with 10% KOH during 72 h at 40°C was the most efficient for whole-body samples. The usage of NaClO proved successful in digestion of the gastrointestinal tract overnight at room temperature. Fibers detected in the samples are assumed to be of plastic origin. The general goal was to establish a protocol for extracting MPs from fish tissue in wild populations to obtain results and determine the degree of pollution. more...
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- 2022
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16. The first record of Dixella aestivalis (Meigen, 1818) (Diptera: Dixidae) in Serbia
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Simović Predrag M., Simić Vladica M., and Petrović Ana S.
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dixidae ,dixella aestivalis ,pešter plateau ,karamejdan lake ,serbia ,Science - Abstract
The meniscus midges Dixella aestivallis (Meigen, 1818) was recorded for the first time on the territory of Serbia. This species was found in the Karamejdan Lake on the territory of the protected nature reserve Pešter plateau, the highest Karst plateau of the Balkan Peninsula. The larva of D. aestivalis was detected in a locality with well-developed aquatic vegetation and high value of oxygen concentration. Dixella aestivalis is a eurytopic species, which prefers to live in different types of small stagnant waters. This study is a result of the ongoing monitoring of freshwater ecosystems. This finding is the starting point for further studies of these species in Serbia. more...
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- 2022
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17. TRANSPLANTATION CLINICAL 1
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Schachtner, T., primary, Reinke, P., additional, Dorje, C., additional, Mjoen, G., additional, Midtvedt, K., additional, Strom, E. H., additional, Oyen, O., additional, Jenssen, T., additional, Reisaeter, A. V., additional, Smedbraaten, Y. V., additional, Sagedal, S., additional, Fagerland, M. W., additional, Hartmann, A., additional, Thiel, S., additional, Zulkarnaev, A., additional, Vatazin, A., additional, Vincenti, F., additional, Harel, E., additional, Kantor, A., additional, Thurison, T., additional, Hoyer-Hansen, G., additional, Craik, C., additional, Kute, V. B., additional, Shah, P. S., additional, Vanikar, A. V., additional, Modi, P. R., additional, Shah, P. R., additional, Gumber, M. R., additional, Patel, H. V., additional, Engineer, D. P., additional, Shah, V. R., additional, Rizvi, J., additional, Trivedi, H. L., additional, Malheiro, J., additional, Dias, L., additional, Martins, L. S., additional, Fonseca, I., additional, Pedroso, S., additional, Almeida, M., additional, Castro-Henriques, A., additional, Cabrita, A., additional, Costa, C., additional, Ritta, M., additional, Sinesi, F., additional, Sidoti, F., additional, Mantovani, S., additional, Di Nauta, A., additional, Messina, M., additional, Cavallo, R., additional, Verflova, A., additional, Svobodova, E., additional, Slatinska, J., additional, Slavcev, A., additional, Pokorna, E., additional, Viklicky, O., additional, Yagan, J., additional, Chandraker, A., additional, Diena, D., additional, Tognarelli, G., additional, Ranghino, A., additional, Bussolino, S., additional, Fop, F., additional, Segoloni, G. P., additional, Biancone, L., additional, Leone, F., additional, Mauro, M. V., additional, Gigliotti, P., additional, Lofaro, D., additional, Greco, F., additional, Perugini, D., additional, Papalia, T., additional, Perri, A., additional, Vizza, D., additional, Giraldi, C., additional, Bonofilgio, R., additional, Luis-Lima, S., additional, Marrero, D., additional, Gonzalez-Rinne, A., additional, Torres, A., additional, Salido, E., additional, Jimenez-Sosa, A., additional, Aldea-Perona, A., additional, Gonzalez-Posada, J. M., additional, Perez-Tamajon, L., additional, Rodriguez-Hernandez, A., additional, Negrin-Mena, N., additional, Porrini, E., additional, Pihlstrom, H., additional, Dahle, D. O., additional, Holdaas, H., additional, Von Der Lippe, N., additional, Waldum, B., additional, Brekke, F., additional, Amro, A., additional, Os, I., additional, Klin, P., additional, Sanabria, H., additional, Bridoux, P., additional, De Francesco, J., additional, Fortunato, R. M., additional, Raffaele, P., additional, Kong, J., additional, Son, S. H., additional, Kwon, H. Y., additional, Whang, E. J., additional, Choi, W. Y., additional, Yoon, C. S., additional, Thanaraj, V., additional, Theakstone, A., additional, Stopper, K., additional, Ferraro, A., additional, Bhattacharjya, S., additional, Devonald, M., additional, Williams, A., additional, Mella, A., additional, Gallo, E., additional, Di Vico, M. C., additional, Pagani, F., additional, Gai, M., additional, Cho, H. J., additional, Nho, K. W., additional, Park, S.-K., additional, Kim, S. B., additional, Yoshida, K., additional, Ishii, D., additional, Ohyama, T., additional, Kohguchi, D., additional, Takeuchi, Y., additional, Varga, A., additional, Sandor, B., additional, Kalmar-Nagy, K., additional, Toth, A., additional, Toth, K., additional, Szakaly, P., additional, Kildushevsky, A., additional, Fedulkina, V., additional, Kantaria, R., additional, Staeck, O., additional, Halleck, F., additional, Rissling, O., additional, Naik, M., additional, Neumayer, H.-H., additional, Budde, K., additional, Khadzhynov, D., additional, Bhadauria, D., additional, Kaul, A., additional, Prasad, N., additional, Sharma, R. K., additional, Sezer, S., additional, Bal, Z., additional, Erkmen Uyar, M., additional, Guliyev, O., additional, Erdemir, B., additional, Colak, T., additional, Ozdemir, N., additional, Haberal, M., additional, Caliskan, Y., additional, Yazici, H., additional, Artan, A. S., additional, Oto, O. A., additional, Aysuna, N., additional, Bozfakioglu, S., additional, Turkmen, A., additional, Yildiz, A., additional, Sever, M. S., additional, Yagisawa, T., additional, Nukui, A., additional, Kimura, T., additional, Nannmoku, K., additional, Kurosawa, A., additional, Sakuma, Y., additional, Miki, A., additional, Damiano, F., additional, Ligabue, G., additional, De Biasi, S., additional, Granito, M., additional, Cossarizza, A., additional, Cappelli, G., additional, Henriques, A. C., additional, Davide, J., additional, Von During, M. E., additional, Jenssen, T. G., additional, Bollerslev, J., additional, Godang, K., additional, Asberg, A., additional, Bachelet, T., additional, Martinez, C., additional, Bello, A., additional, Kejji, S., additional, Couzi, L., additional, Guidicelli, G., additional, Lepreux, S., additional, Visentin, J., additional, Congy-Jolivet, N., additional, Rostaing, L., additional, Taupin, J.-L., additional, Kamar, N., additional, Merville, P., additional, Ozdemir, H., additional, Yildirim, S., additional, Tutal, E., additional, Sayin, B., additional, Ozdemir Acar, N., additional, Banasik, M., additional, Boratynska, M., additional, Koscielska-Kasprzak, K., additional, Kaminska, D., additional, Bartoszek, D., additional, Mazanowska, O., additional, Krajewska, M., additional, Zmonarski, S., additional, Chudoba, P., additional, Dawiskiba, T., additional, Protasiewicz, M., additional, Halon, A., additional, Sas, A., additional, Kaminska, M., additional, Klinger, M., additional, Stefanovic, N., additional, Cvetkovic, T., additional, Velickovic - Radovanovic, R., additional, Jevtovic - Stoimenov, T., additional, Vlahovic, P., additional, Rungta, R., additional, Das, P., additional, Ray, D. S., additional, Gupta, S., additional, Kolonko, A., additional, Szotowska, M., additional, Kuczera, P., additional, Chudek, J., additional, Wiecek, A., additional, Sikora-Grabka, E., additional, Adamczak, M., additional, Madej, P., additional, Amanova, A., additional, Kendi Celebi, Z., additional, Bakar, F., additional, Caglayan, M. G., additional, Keven, K., additional, Massimetti, C., additional, Imperato, G., additional, Zampi, G., additional, De Vincenzi, A., additional, Fabbri, G. D. D., additional, Brescia, F., additional, Feriozzi, S., additional, Filipov, J. J., additional, Zlatkov, B. K., additional, Dimitrov, E. P., additional, Svinarov, D. A., additional, Poesen, R., additional, De Vusser, K., additional, Evenepoel, P., additional, Kuypers, D., additional, Naesens, M., additional, Meijers, B., additional, Kocak, H., additional, Yilmaz, V. T., additional, Yilmaz, F., additional, Uslu, H. B., additional, Aliosmanoglu, I., additional, Ermis, H., additional, Dinckan, A., additional, Cetinkaya, R., additional, Ersoy, F. F., additional, Suleymanlar, G., additional, Oliveira, J.-C., additional, Santos, J., additional, Lobato, L., additional, Mendonca, D., additional, Watarai, Y., additional, Yamamoto, T., additional, Tsujita, M., additional, Hiramitsu, T., additional, Goto, N., additional, Narumi, S., additional, Kobayashi, T., additional, Line, P.-D., additional, Housawi, A., additional, House, A., additional, Ng, C., additional, Denesyk, K., additional, Rehman, F., additional, Moist, L., additional, Musetti, C., additional, Battista, M., additional, Izzo, C., additional, Guglielmetti, G., additional, Airoldi, A., additional, Stratta, P., additional, Cena, T., additional, Quaglia, M., additional, Fenoglio, R., additional, Cagna, D., additional, Amoroso, A., additional, Palmisano, A., additional, Degli Antoni, A. M., additional, Vaglio, A., additional, Piotti, G., additional, Cremaschi, E., additional, Buzio, C., additional, Maggiore, U., additional, Lee, M.-C., additional, Hsu, B.-G., additional, Zalamea Jarrin, F., additional, Sanchez Sobrino, B., additional, Lafuente Covarrubias, O., additional, Karsten Alvarez, S., additional, Dominguez Apinaniz, P., additional, Llopez Carratala, R., additional, Portoles Perez, J., additional, Yildirim, T., additional, Yilmaz, R., additional, Turkmen, E., additional, Altindal, M., additional, Arici, M., additional, Altun, B., additional, Erdem, Y., additional, Dounousi, E., additional, Mitsis, M., additional, Naka, K., additional, Pappas, H., additional, Lakkas, L., additional, Harisis, H., additional, Pappas, K., additional, Koutlas, V., additional, Tzalavra, I., additional, Spanos, G., additional, Michalis, L., additional, Siamopoulos, K., additional, Iwabuchi, T., additional, Nanmoku, K., additional, Yasunaru, S., additional, Yoshikawa, M., additional, Kitamura, K., additional, Fuji, H., additional, Fujisawa, M., additional, Nishi, S., additional, Carta, P., additional, Zanazzi, M., additional, Buti, E., additional, Larti, A., additional, Caroti, L., additional, Di Maria, L., additional, Minetti, E. E., additional, Shi, Y., additional, Luo, L., additional, Cai, B., additional, Wang, T., additional, Zou, Y., additional, Wang, L., additional, Kim, Y., additional, Kim, H. S., additional, Choi, B. S., additional, Park, C. W., additional, Yang, C. W., additional, Kim, Y.-S., additional, Chung, B. H., additional, Baek, C. H., additional, Kim, M., additional, Kim, J.-S., additional, Yang, W. S., additional, Han, D. J., additional, Mikolasevic, I., additional, Racki, S., additional, Lukenda, V., additional, Persic, M. P., additional, Colic, M., additional, Devcic, B., additional, Orlic, L., additional, Gurlek Demirci, B., additional, Say N, C. B., additional, Ozdemir Acar, F. N., additional, Vali, S., additional, Ismal, K., additional, Sahay, M., additional, Civiletti, F., additional, Cantaluppi, V., additional, Medica, D., additional, Mazzeo, A. T., additional, Assenzio, B., additional, Mastromauro, I., additional, Deambrosis, I., additional, Giaretta, F., additional, Fanelli, V., additional, Mascia, L., additional, Gkirdis, I., additional, Bechlioulis, A., additional, Evangelou, D., additional, Zarzoulas, F., additional, Kotsia, A., additional, Balafa, O., additional, Tzeltzes, G., additional, Nakas, G., additional, Kalaitzidis, R., additional, Katsouras, C., additional, Uyanik, S., additional, Toprak, S. K., additional, Ilhan, O., additional, Ekmen Uyar, M., additional, Hernandez Vargas, H., additional, Artamendi Larranaga, M., additional, Ramalle Gomara, E., additional, Gil Catalinas, F., additional, Bello Ovalle, A., additional, Pimentel Guzman, G., additional, Coloma Lopez, A., additional, Sierra Carpio, M., additional, Gil Paraiso, A., additional, Dall Anesse, C., additional, Beired Val, I., additional, Huarte Loza, E., additional, Choy, B. Y., additional, Kwan, L., additional, Mok, M., additional, Chan, T. M., additional, Yamakawa, T., additional, Kobayashi, A., additional, Yamamoto, I., additional, Mafune, A., additional, Nakada, Y., additional, Tannno, Y., additional, Tsuboi, N., additional, Yamamoto, H., additional, Yokoyama, K., additional, Ohkido, I., additional, Yokoo, T., additional, Luque, Y., additional, Anglicheau, D., additional, Rabant, M., additional, Clement, R., additional, Kreis, H., additional, Sartorius, A., additional, Noel, L.-H., additional, Timsit, M.-O., additional, Legendre, C., additional, Rancic, N., additional, Vavic, N., additional, Dragojevic-Simic, V., additional, Katic, J., additional, Jacimovic, N., additional, Kovacevic, A., additional, Mikov, M., additional, Veldhuijzen, N. M. H., additional, Rookmaaker, M. B., additional, Van Zuilen, A. D., additional, Nquyen, T. Q., additional, Boer, W. H., additional, Sahtout, W., additional, Ghezaiel, H., additional, Azzebi, A., additional, Ben Abdelkrim, S., additional, Guedri, Y., additional, Mrabet, S., additional, Nouira, S., additional, Ferdaws, S., additional, Amor, S., additional, Belarbia, A., additional, Zellama, D., additional, Mokni, M., additional, Achour, A., additional, Parikova, A., additional, Hanzal, V., additional, Fronek, J., additional, Orandi, B. J., additional, James, N. T., additional, Montgomery, R. A., additional, Desai, N. M., additional, Segev, D. L., additional, Fontana, F., additional, Ballestri, M., additional, and Magistroni, R., additional more...
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- 2014
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18. Overview of brown coal reserves in Banovići basin in accordance with PERC reporting standard
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Baraković Damir A., Modrić Kasim A., and Simić Vladimir M.
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mineral reserves ,coal deposits ,reporting standards ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
In this paper the mineral reserves of brown coal deposits in the Banovici basin have been preliminary correlated to the international standard for reporting of minerals. It can act as a "key code and guidelines" for any country that wants to adopt its own standard reporting based on PERC and represents a new way of unique way of reporting and cadastre of mineral resources on the territory of Europe. more...
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- 2021
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19. Cardiopulmonary resuscitation in the prone position
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Emiš-Vandlik Nada, Anđelić Slađana, Bogunović Snežana, Simić Vladimir, and Nikolić Tanja
- Subjects
cardiac arrest ,cardiopulmonary resuscitations ,prone position ,Medicine (General) ,R5-920 - Abstract
Cardiopulmonary resuscitation (CPR) is a series of life-saving procedures aimed at restoring and maintaining the functions of breathing and circulation in patients suffering from cardio-respiratory arrest. Old and new CPR guidelines assume that the patient is lying on the back, on a hard and stable surface. The prone position where the patient is lying on the stomach is often used in the operating room to enable an easier approach to the operative field and in intensive care units (ICU) to enable better oxygenation for patients in advanced stages of hypoxic respiratory insufficiency. During the COVID-19 pandemic, patients suffering from the infection are often treated in the prone position. Should cardiac arrest occur, it is necessary to initiate high-quality chest compressions and early defibrillation as soon as possible for the patient to have the best chance of survival. Current guidelines stipulate that CPR should be initiated immediately, even in the prone position, and kept up until conditions are met for the patient to be turned over onto the back. It is recommended to place hands on the patient's back at the level of the T7-T10 vertebrae and perform chest compressions with the usual strength and velocity (5-6 cm deep, 2 compressions per second). For defibrillation, self-adhesive disposable electrodes should be placed in an anterior-posterior or a bi-axillary position. Sternal counterpressure could increase the efficacy of chest compressions. Educating health workers to perform this CPR technique and using it in selected patients can increase survival. more...
- Published
- 2021
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20. Lung abscess as a complication of COVID-19
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Simić Vladimir and Radovanović Jovana
- Subjects
covid-19 ,lung abscess ,complication ,Medicine (General) ,R5-920 - Abstract
Introduction/Objective: A lung abscess is a localized purulent inflammation of lung tissue with necrosis and colliquation. We are presenting a rare case of lung abscess formation as a result of the COVID-19 viral infection. Case report: An 81-year-old male patient with typical complaints (fever, malaise, fatigue) was examined at a designated medical centre for COVID patients. A positive PCR test and radiology findings confirmed a COVID-19 infection. Medication was prescribed according to protocol and he was sent home. During the night, 36 hours after the onset of the first symptoms, the patient developed breathing difficulties and a persistent, irritating dry cough. He was admitted to the Covid Hospital Karaburma, where he received treatment for 35 days. On the 22nd day after being released, the patient was examined at the Emergency Medical Centre, Clinical Centre of Serbia, complaining of dyspnoea, occasional hemoptysis and fatigue. The working diagnosis was pulmonary embolism. A multislice CT scan was ordered only to reveal a pulmonary abscess at the base of the left lung. Conclusion: A lung abscess is a rare, but possible complication of a COVID-19 infection. Therefore, patients should be regularly monitored for an extended period of time following hospitalization. more...
- Published
- 2021
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21. Studying of liquid thermolysis products of various types of immature kerogen in sedimentary lacustrine rocks from the valjevo-Mionica basin, Serbia, and the effect of Pt4+ and Ru3+ ions on their yield and the hydrocarbon composition
- Author
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Šajnović, Aleksandra, Stojanović, Ksenija A., Simic, V., Pevneva, G. S., Golovko, A. K., Jovančićević, Branimir, Šajnović, Aleksandra, Stojanović, Ksenija A., Simic, V., Pevneva, G. S., Golovko, A. K., and Jovančićević, Branimir more...
- Abstract
Liquid thermolysis products of various types of immature kerogen from sedimentary lacustrine rocks from the Valjevo-Mionica basin in Serbia were studied to evaluate the generation potential of kerogen contained in the organic matter (OM) of the rocks, determine the composition of the biomarkers and alkylaromatics in the liquid thermolysis products, and elucidate the effect of Pt4+ and Ru3+ ions (which were added in the form of inorganic salts) on the yield and hydrocarbon composition of the liquid thermolysis products. For this purpose, representative bitumen-free samples A and B of the sedimentary rocks were subjected to thermolysis under various conditions. Rock A contains high amount of immature organic matter, which is dominated by kerogen type I/II and was generated under strongly reduced sedimentation conditions at a high salinity. Sample B is poorer in immature OM than sample A, and the OM of the former contains kerogen type II/III and was generated predominantly in a reduced environment. The content of the liquid products and the concentrations of hydrocarbons obtained in the course of thermolysis of bitumen-free sample A and the typical oil distribution of the biomarkers and alkylaromatics in the thermolysis products confirm a high generation potential of OM in this rock. In all of our experiments on the thermolysis of bitumen-free sample B, the yield of liquid products and hydrocarbons is low. According to the kerogen type, the thermolysis of this rock generates much gases. The Pt4+ and Ru3+ ions (added in the form of simple inorganic salts) increased the yield of liquid (kerogen type I/II) and gaseous (kerogen type II/III) products. During the thermolysis of various type of immature kerogen in the lacustrine sedimentary rocks at a temperature of 400A degrees C, the OM attained maturation corresponding to the early catagenesis level. Saturated biomarkers and alkylaomatics in the thermolysis products of both samples display typical oil distributions. The ty more...
- Published
- 2011
22. Checklist of non-indigenous fish species of the River Danube
- Author
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Zoric, Katarina, primary, Simonovic, P., additional, Djikanovic, Vesna, additional, Markovic, Vanja, additional, Nikolic, Vera, additional, Simic, V., additional, and Paunovic, M., additional
- Published
- 2014
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23. Do Policy Measures Impact on Cost Consciousness of Health Care Professionals?
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Jakovljevic, M., primary, Vukovic, M., additional, Antunovic, M., additional, Dragojevic Simic, V., additional, Velickovic Radovanovic, R., additional, Siladji-Mladenovic, D., additional, Jankovic, N., additional, Rankovic, A., additional, Kovacevic, A., additional, Markovic, V., additional, Chia-Ching, C., additional, and Tetsuji, Y., additional more...
- Published
- 2013
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24. The first record of the Chinese pond mussel Sinanodonta woodiana (Lea, 1834) in Montenegro
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Tomovic, Jelena, primary, Zoric, Katarina, additional, Simic, V., additional, Kostic, Marija, additional, Kljajic, Z., additional, Lajtner, Jasna, additional, and Paunovic, M., additional
- Published
- 2013
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25. Scardinius knezevici Bianco & Kottelat, 2005 and Alburnus scoranza Bonaparte, 1845: New species of ichthyofauna of Serbia and the Danube basin
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Simic, V., primary, Simic, Snezana, additional, Paunovic, M., additional, Simonovic, P., additional, Radojkovic, Natasa, additional, and Petrovic, Ana, additional
- Published
- 2012
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26. First record of Bothrioneurum vejdovskyanum Stolc, 1886 (Oligochaeta, Tubificidae) in Serbia
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Atanackovic, Ana, primary, Sporka, F., additional, Tomovic, Jelena, additional, Vasiljevic, Bozica, additional, Markovic, Vanja, additional, Simic, V., additional, and Paunovic, M., additional
- Published
- 2012
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27. Cryopreservation of Danube barbel Barbus balcanicus sperm and its effects on sperm subpopulation structure
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Kojadinović Nataša M., Marinović Zoran, Veličković Tijana Z., Milošković Aleksandra M., Jakovljević Marija M., Horváth Ákos, and Simić Vladica M.
- Subjects
balkan barbel ,spermatozoa ,fish conservation ,sperm subpopulation ,Biology (General) ,QH301-705.5 - Abstract
The objective of this study was to develop a successful freezing protocol for cryopreservation of Danube barbel sperm, and to identify the presence of different spermatozoa subpopulations. By testing different concentrations of different cryoprotectants, we determined that the use of 5% dimethyl sulfoxide (DMSO) yielded the highest total motility of ~25%. Cooling rates influenced by frame height and cooling time in liquid nitrogen vapor showed that a frame height of 3 cm and cooling time of 2 min yielded the highest post-thaw motility. Supplementation of cryomedia with 0.1 M of sugars led to an increase in the total post-thaw motility by ~50%, while protein supplementation lowered post-thaw motility. Motile spermatozoa hierarchically clustered according to their motility parameters, displaying a four-subpopulation (SP1-SP4) structure. SP1 was defined by low values of velocity but high overall linearity; SP2 was comprised of fast non-linear spermatozoa, that had high velocity values but low linearity; SP3 was characterized by fast linear spermatozoa, and SP4 by slow non-linear spermatozoa. Protocols developed in this study will lead to the creation of new and enhanced conservation strategies for this species. more...
- Published
- 2020
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28. Popular piety and the paper icons of Zaharija Orfelin
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Simić Vladimir
- Subjects
zaharija orfelin (1726-1785) ,popular piety ,paper icons ,engravings ,the metropolitanate of karlovci (karlowitz) ,eighteenth century ,History of Balkan Peninsula ,DR1-2285 - Abstract
The paper deals with the phenomenon of popular piety in the eighteenth century and its reflections in art media through several prints made by the Serbian engraver Zaharija Orfelin. Paper icons, the cheapest means of meeting the spiritual needs of Orthodox Serbs in Hungary in the eighteenth century, were mass produced and easy to transport to remotest places. As they were the main channels of expressing piety, it is not unexpected that some artists-entrepreneurs such as Orfelin started such a lucrative production. Orfelin shaped the iconography of those images, combining the traditional Orthodox heritage and contemporary Baroque models that had migrated from Central European religious art. His imagery included particular national saints and their patriotic cults, dogmatic and doctrinal views of the church, as well as images of the Mother of God. more...
- Published
- 2020
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29. Early cyrillic printed books and the migration of decorative forms between the Adriatic and the Danube around 1500
- Author
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Simić Vladimir
- Subjects
cetinje ,printing shop ,cyrillic books ,mediterranean ,danube area ,wallachia ,migration in art ,cultural transfer ,History of the arts ,NX440-632 - Abstract
The article focuses on the artistic transfer of the early printed books from the Cetinje printing shop, between the Mediterranean and the Danube region in the late medieval and early modern period. The master-printer Makarije made these books under the influence of the Italian, German and Slavonic printers operating in Venice. He later traveled throughout Southeastern Europe, spreading their influence to the Wallachian principality. The paper analyzes and compares the decorative elements in these books in order to understand their origin. The migration and the reception of the artistic elements of Makarije’s incunabula allow us to discover artistic dissemination routes. more...
- Published
- 2020
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30. Politics, orthodoxy and arts: Serbian-Russian cultural relations in the 18th century
- Author
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Simić Vladimir
- Subjects
russian-serbian relations ,eighteenth century ,religious painting ,portraits ,romanov dynasty ,Musical instruction and study ,MT1-960 - Abstract
The complicated political and cultural position of the Serbs who migrated to the Habsburg Monarchy in the early eighteenth century caused the rise of popularity of Russian rulers, who were recognized as protectors of the Orthodox against religious persecution. Political ties were accompanied by a strong Russification of Serbian culture, which was carried out through the mass procurement of Russian liturgical books and the arrival of many Russian teachers to Serbian schools. Ukrainian painters who came to the Metropolitanate of Karlovci brought new forms of baroque religious painting and introduced changes in the structure of the iconostasis. The cult of the Romanov dynasty among Orthodox Serbs in Hungary was amplified by their numerous portraits and engravings. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 177001: Representations of identity in art andverbal-visual culture of the Modern era] more...
- Published
- 2020
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- View/download PDF
31. Basalt-polyester hybrid composite materials for demanding wear applications
- Author
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Abusahmin Faisal, Algellai Ahmed, Tomić Nataša, Vuksanović Marija M., Majstorović Jelena, Volkov-Husović Tatjana, Simić Vladimir, Jančić-Heinemann Radmila, Toljić Marinko, and Kovačević Jovan
- Subjects
basalt ,composite materials ,cavitation erosion ,alumina particles ,Chemical technology ,TP1-1185 - Abstract
Basalt as a filler in a polymer-based composite material fulfils the demand of being natural, environment-friendly material for the production of various composite materials. The material could be used as protective layer and the abrasion should be tested in order to evaluate the properties of the material. The cavitation test enables the evaluation of the possible service in conditions that simulate the extensive erosion. The presence of basalt in the matrix improves the resistance to cavitation. The possibility to further improve the material could be obtained using the reinforcement of the matrix itself by incorporation of submicron ceramic particles into the composite. The obtained hybrid composite material with the addition of reinforcement in the matrix further improves the cavitation resistance. [Projects of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR34011 and Grant no. OI 176016] more...
- Published
- 2020
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32. On the possibility of using biological toxicity tests to monitor the work of wastewater treatment plants
- Author
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Zoric, Jelena, primary, Simic, V., additional, and Petrovic, Ana, additional
- Published
- 2008
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33. HPV-16 E5 oncoprotein upregulates lipid raft components caveolin-1 and ganglioside GM1 at the plasma membrane of cervical cells
- Author
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Suprynowicz, F A, primary, Disbrow, G L, additional, Krawczyk, E, additional, Simic, V, additional, Lantzky, K, additional, and Schlegel, R, additional
- Published
- 2007
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34. A New Records ofEpeorus Yougoslavicus(Šamal, 1935) [Ephemeroptera] in Serbia and Montenegro
- Author
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Petrovic, A., primary, Simic, V., additional, Paunovic, M., additional, and Stojanovic, B., additional
- Published
- 2006
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35. New data on ichthyofauna of Serbia
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Simic, V., primary and Soric, V., additional
- Published
- 2006
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36. Species composition, spatial distribution and temporal occurrence of mayflies (Ephemeroptera) in the Vlasina river (southeast Serbia)
- Author
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Paunovic, M., primary, Jakovcev-Todorovic, Dunja, additional, Simic, V., additional, Stojanovic, Bojana, additional, and Veljkovic, Ana, additional
- Published
- 2006
- Full Text
- View/download PDF
37. Length-weight gain of European crayfish Astacus astacus (L.) in the area of the upper course of the Zeta river, Montenegro
- Author
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Rajkovic, Milka, primary, Simic, V., additional, and Petrovic, Ana, additional
- Published
- 2006
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38. Trophic relations between macroinvertebrates in the Vlasina river (Serbia)
- Author
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Paunovic, M., primary, Jakovcev-Todorovic, Dunja, additional, Simic, V., additional, Stojanovic, Bojana, additional, and Petrovic, Ana, additional
- Published
- 2006
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39. Distribution of Non-Indigenous Tubificid WormBranchiura Sowerbyi(Beddard, 1892) in Serbia
- Author
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Paunovic, M., primary, Miljanovic, B., additional, Simic, V., additional, Cakic, P., additional, Djikanovic, V., additional, Jakovcev-Todorovic, D., additional, Stojanovic, B., additional, and Veljkovic, A., additional more...
- Published
- 2005
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40. A New Record ofChoroterpes Picteti(Eaton, 1871) [Ephemeroptera: Leptophlebiidae] in Serbia
- Author
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Simic, V., primary, Paunovic, M., additional, Stojanovic, B., additional, and Veljkovic, A., additional
- Published
- 2005
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41. ASSESSMENT OF LANDSCAPE SENSITIVITY BASED ON GEOCHEMICAL CHARACTERISTICS OF SEDIMENTS (KREMNA BASIN, SERBIA)
- Author
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Kašanin-Grubin Milica, Šajnović Aleksandra, Perunović Tamara, Stojanović Ksenija, Simić Vladimir, Gajica Gordana, and Brčeski Ilija
- Subjects
landscape sensitivity ,lacustrine sediments ,mineralogy ,geochemistry ,leaching ,Environmental sciences ,GE1-350 - Abstract
The scale of human impacts on the natural environment is now considerably larger than at any point in history. The concept of geomorphic sensitivity can help to understand the rate, magnitude and nature of landscape adjustment to perturbation in a given natural system. Aim of this research is to show that geochemical and mineralogical data are important factors in determining landscape sensitivity. To test the suggested premise Neogene lacustrine Kremna basin (Serbia) was selected since sediments found in lacustrine basins are usually prone to dispersion and erosion. Furthermore, lacustrine basins often bear fossil and mineral resources and because of that are often undergoing land use changes. For the purpose of this study, samples of serpentinite, carbonates, marly carbonates, oil shale and tuff were analyzed. Besides mineralogical and petrographic analyses, samples were subjected to the weathering experiments. Obtained results indicate that marly carbonates and tuff are most prone to dispersion primarily due to presence of clay minerals. However, oil shale which also contains clay minerals showed minor leaching characteristics due to high content of organic matter. It can be concluded that mineralogical and geochemical characteristics are important for determining landscape sensitivity to erosion processes of an area. more...
- Published
- 2018
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42. PMH7 - Do Policy Measures Impact on Cost Consciousness of Health Care Professionals?
- Author
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Jakovljevic, M., Vukovic, M., Antunovic, M., Dragojevic Simic, V., Velickovic Radovanovic, R., Siladji-Mladenovic, D., Jankovic, N., Rankovic, A., Kovacevic, A., Markovic, V., Chia-Ching, C., and Tetsuji, Y. more...
- Published
- 2013
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43. ANTI-INFLAMMATORY ACTIVITY OF FULLERENOL C60(OH)24 NANO-PARTICLES IN A MODEL OF ACUTE INFLAMMATION IN RATS.
- Author
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Dragojevic-Simic, V., Jacevic, V., Dobric, S., Djordjevic, A., Bokonjic, D., Bajcetic, M., and Injac, R.
- Subjects
- *
INFLAMMATION , *CARRAGEENANS , *ETHIOFOS , *NANOSTRUCTURED materials , *MICROSTRUCTURE - Abstract
Water soluble fullerene (C60) derivative fullerenol C60(OH)24 nano-particles (FNP) are a promising candidate for many biomedical applications due to, besides other properties, strong free-radical scavenging and antioxidative potential. Using the carrageenan-induced rat footpad oedema test, the anti-inflammatory effect of FNP have been estimated in comparison with those of amifostine (AMI) and indomethacin (IND). FNP and IND, dissolved in dimethylsulfoxide, and AMI, dissolved in saline, were intraperitoneally injected to rats in a dose range 12.5 - 75 mg/kg, 3 - 10 mg/kg, and 50 - 300 mg/kg, respectively. The control groups were given corresponding vehicles. The drugs or vehicles were given 30 min before carrageenan injection. Footpad swelling was measured 3 hours after carrageenan application. Calculation of a per cent of inhibition derived through comparison with the control groups was done. Histopathological examination of the inflamed foot skin biopsies was also performed. FNP dose-dependently and significantly reduced the extent of footpad oedema, comparable to that of IND and significantly better than AMI; their ED50 values (in μmol/kg) were: 35.36, 32.12 and 871.0, respectively. Histopathological examination confirmed these results. The largest therapeutic index of FNP suggests their safety for potential use in humans. Our results support the hypothesis that FNP produce a strong acute anti-inflammatory activity [ABSTRACT FROM AUTHOR] more...
- Published
- 2011
44. Characterization of the zeolitic tuff from the 'Igroš-Vidojevići' deposit regarding geological and technological aspects
- Author
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Kašić Vladan, Mihajlović Slavica, Životić Dragana, Simić Vladimir, Stojanović Jovica, Sekulić Živko, and Kragović Milan
- Subjects
Zeolite ,Footwall ,Cation-exchange capacity ,Thermal analysis ,X-Ray powder diffraction analysis ,Fourier transform Infrared spectroscopic analysis ,Chemical technology ,TP1-1185 - Abstract
This study presents investigations of zeolitic tuff samples from the “Igroš- -Vidojevići” deposit. The aim of the research was to determine the quality of samples taken from all deposit parts. Thus, samples were taken from the footwall (“Zeolit 1”), and four samples from the central deposit part (“Zeolit 2”, “Zeolit 3”, “Zeolit 4” and “Zeolit 5”). Characterization of the samples included chemical analysis, determination of the adsorption coefficient for methylene blue dye and cation-exchange capacity (CEC), X-ray powder diffraction analysis (XRPD), differential thermal and thermogravimetric analysis (DTA and TGA), and Fourier transform Infrared spectroscopic analysis (FTIR). Results have shown that the footwall consists mostly of clays, whereas zeolite minerals dominate in the rest of the deposit. XRD analysis of the “Zeolit 1” sample confirmed presence of smectite and kaolinite clays, while zeolite of analcime type and quartz are present as smaller fractions. Chemical composition analysis and determination of heavy metal contents showed a significant amount (7.58%) of Fe2O3 in this sample. Therefore, further research can be pursued to find a method for removal of magnetic impurities in this deposit portion in order to utilize the clay fraction. On the other hand, according to XRD, FTIR, DTA/TGA and SEM/EDS analyses, samples which belong to the central deposit part (“Zeolit 2–5”) consist of clinoptilolite zeolite type, while clays are present in less than 10%. Thus, clays (smectites and kaolinite) accompanied with analcime and quartz are the most abundant footwall minerals while central deposit parts contain predominantly clinoptilolite accompanied with small amounts of clays. Mineragenetically, zeolites are most abundant in the “Zeolit 2” and “Zeolit 3” samples. The smallest value of CEC was determined for the “Zeolit 1” sample (46.98 mmol/100g). According to CEC values determined for “Zeolit 2” and “Zeolit 3” (141.99 and 121.01 mmol/100 g, respectively) these samples are of the best quality, and could be utilized as adsorbents of inorganic pollutants from contaminated waters. Moreover, they could be potentially used for removal of mycotoxins from cattle feed. “Zeolit 4” and “Zeolit 5” samples have shown slightly lower CEC values (89.48 and 83.75 mmol/100 g, respectively), which implies lower quality, and, therefore, could be used for soil quality improvement. Finally, determination of the external CEC has revealed a significant difference between “Zeolit 1” and “Zeolit 5” samples (17.9 and 5.31 mmol/100 g, respectively). [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR34013 and Grant no. TR33007] more...
- Published
- 2018
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45. Optimization of ultrasound-assisted extraction of total polyphenolic compounds from Juglans nigra L. leaves
- Author
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Gavrilović Marijana, Rajković Katarina M., Simić Valentina, Jeremić Sanja, Mirković Snježana, and Jevtić Aleksandra S.
- Subjects
black walnut ,polyphenols ,response surface methodology ,Chemistry ,QD1-999 - Abstract
The ultrasound-assisted extraction of Juglans nigra L. leaves was optimized with respect to total phenolic content (TP) of the extracts by varying the concentration of aqueous ethanol solution (E) and different solvent-to-solid ratio (S). The influence and optimum of the operating parameters (E and S) was examined using response surface methodology (RSM). The statistical criteria indicated the adequacy, reliability and precision of the developed RSM model. RSM showed that maximum extraction yield of TP 28.59 mg g-1 of draw plant was achieved at the optimal values of 50% E and 20 kg kg-1 S. Using the modelled optimized conditions, the detected relative difference between the predicted and the experimental yield was ±2.3 %. The determined TP content in the extracts varied from 12.54 to 29.26 mg GAE g-1 of dry plant indicated that J. nigra is a valuable source of phenolic substances. The extracts of J. nigra leaves obtained under optimal conditions showed good antioxidant activity (IC50 = 18.91±0.03 μg cm-3) which was determined by the scavenging effect on 2,2-diphenyl-1-picrylhydrazyl radical. The optimization of the TP extraction process is the important step in improving techno-economics of the potential commercial preparation of J. nigra extracts, as natural source of antioxidants. more...
- Published
- 2018
- Full Text
- View/download PDF
46. Mineralogy and crystallochemical characteristics of HEU-type minerals from zeolitic tuff deposits of Serbia
- Author
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Kašić Vladan D., Simić Vladimir, Životić Dragana, Radosavljević-Mihajlović Ana S., and Stojanović Jovica N.
- Subjects
zeolitic tuffs ,mineralogy ,crystal chemistry ,DTA/TGA and XRD characterization ,Chemical technology ,TP1-1185 - Abstract
The results of perennial research of several Serbian zeolitic tuffs enriched with HEU-type minerals are presented in this paper. There are several recognized zeolitic tuff deposits containing HEU-type minerals: Zlatokop, Igroš, Beočin, Toponica, Slanci, but their comparative mineralogical and crystallochemical features have not been studied in detail so far. These zeolitic tuff deposits are spatially and genetically connected to volcanic and pyroclastic rocks of marine and lake environments of Senonian and Eocene, and Neogene age, respectively. As a result of devitrification and diagenesis process of volcanic glass within zeolitic tuffs hypocrystalline porphiry and vitroclastic textures occur. The studied zeolitic tuffs are mainly composed of heulandite occuring in a form of needle- to plate-like crystals of 0,1 do 100 μm in length, associated with other silicates. Depending on the type and content of exchangeable cations as well as the thermal stability of these raw materials, 24 clinoptilolite-Ca and heulandite-Ca can be distinguished. The values of cation exchange capacity and surface area capacity range from 96 to 166 meq/100 g, and from 8,0 to 10,5 meq/100 g, respectively. HEU-type minerals can be distinguished either by a Si/Al ratio or arrangement of extra framework cations within the crystal structure of these minerals. [Projekat Ministarstva nauke Republike Srbije, br. TR 34013: Osvajanje tehnoloških postupaka dobijanja ekoloških materijala na bazi nemetaličnih mineralnih sirovina i br. 45012: Sinteza, procesiranje i karakterizacija nano strukturnih materijala za primenu u oblasti energije, mehaničkog inţenjerstva, zaštite životne sredine i biomedicine] more...
- Published
- 2017
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47. Comparison of the effectiveness of kick and sweep hand net and Surber net sampling techniques used for collecting aquatic macroinvertebrate samples
- Author
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Tubić Bojana P., Popović Nataša Z., Raković Maja J., Petrović Аna S., Simić Vladica M., and Paunović Momir M.
- Subjects
aquatic macroinvertebrates ,kick and sweep technique ,Surber net technique ,sampling efficiency ,Biology (General) ,QH301-705.5 - Abstract
The objective of this work is to analyze the effectiveness of two widely used methods for collecting aquatic macroinvertebrate samples: the semiquantitative kick and sweep (K&S) and quantitative Surber net (SN) techniques. Based on our data, the methods were fully comparable as regards analysis of the macroinvertebrate metrics most often used in ecological status assessment (sensitivity/tolerance parameters), while K&S was found to be more successful in the evaluation of biodiversity. Thus, both methods could be used for routine monitoring of the status of water bodies, according to the recommendation of the EU Water Framework Directive, while for research, K&S is more advanced. K&S is also more effective timewise for material collecting. SN sampling is a quantitative method and could thus be used in studies of aquatic ecosystem productivity. [This work was supported by the European Communities 7th Framework Program Funding, Grant Agreement No. 603629-ENV-2013-6.2.1-Globaqua] more...
- Published
- 2017
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48. Gemstone deposits of Serbia
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Miladinović Zoran, Simić Vladimir, Jelenković Rade, and Ilić Miloje
- Subjects
gemstone ,genetic-industrial classification ,metallogenic localization ,genetic types ,Geology ,QE1-996.5 - Abstract
Gemstone minerals in Serbia have never been regarded as an interesting and significant resource. Nevertheless, more than 150 deposits and occurrences have been recorded and some of them preliminarily explored in the last 50 years. The majority of deposits and occurrences are located within the Serbo-Macedonian metallogenic province and the most significant metallogenic units at the existing level of knowledge are the Fruska Gora ore district, Cer ore district, Sumadija metallogenic zone, Kopaonik metallogenic zone and Lece-Halkidiki metallogenic zone. The most important genetic type of deposits is hydrothermal, particularly in case of serpentinite/peridotite as host/parent rock. Placer deposits are also economically important. The dominant gemstones are silica minerals: chalcedony (Chrysoprase, carnelian, bluish chalcedony etc.), jasper (picture, landscape, red etc.), common opal (dendritic, green, milky white etc.), silica masses (undivided), and quartz (rock crystal, amethyst etc.). Beside silica minerals significant gemstones in Serbia include also beryl (aquamarine), garnet (almandine and pyrope), tourmaline, fluorite, rhodochrosite, carbonate-silica breccia, carbonate-silica onyx, silicified wood, howlite, serpentinite, marble onyx, and kyanite. This paper aims to present an overview of Serbian gemstone deposits and occurrences and their position based on a simplified gemstone metallogenic map of Serbia, as well as genetic-industrial classification of gemstone deposits and gemstone varieties. more...
- Published
- 2016
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49. A New Records of Epeorus Yougoslavicus(Šamal, 1935) [Ephemeroptera] in Serbia and Montenegro
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Petrovic, A., Simic, V., Paunovic, M., and Stojanovic, B.
- Abstract
ABSTRACTDuring hydrobiological investigations of diversity of rivers and brooks of Serbia and Montenegro, new records of Ephemeroptera species, Epeorus yougoslavicus (12) was ascertained, in period from 2000 to 2005 years. The find of this species, except that it enriches diversity of Ephemeroptera fauna of Serbia and Montenegro, is also important for knowledge of distributions of this species. New biotopes of this species in Gobeljska River on Kopaonik Mountain represents the most northward border of its areal, known until now. On all bitopes where it was found in Serbia and Montenegro, the species occurs in very rare populations, that is a case and with its other until now known finds on Balkan and Apennine peninsula. Small populations and mutually isolated bitope can be taken as parameters on which this species can be consider as endangered for territory of Serbia and Montenegro. more...
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- 2006
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50. Distribution of Non-Indigenous Tubificid Worm Branchiura Sowerbyi(Beddard, 1892) in Serbia
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Paunovic, M., Miljanovic, B., Simic, V., Cakic, P., Djikanovic, V., Jakovcev-Todorovic, D., Stojanovic, B., and Veljkovic, A.
- Abstract
ABSTRACTRecently, dispersion of invasive species became an important theme, since the man-aided outspread of the organisms was recognized as one of the major threats to the biodiversity. Aquatic biotopes are, due to its unique features, among the most disposed ecosystems to this kind of disturbance. Non-indigenous species of different origin were found among plants, vertebrates and invertebrates. Aquatic worm Branchiura sowerbyi (Beddard 1892) is obvious example of human induced dispersal of invertebrates. The aim of the study was to contribute to the cognition of the current distribution of this invasive species and to point up, once again, the risk of devastation of aquatic ecosystems caused by distribution of alien species. B. sowerbyi was for the first time observed in Serbia in 1972 in fish pond in Vojvodina. Since that time the worm spread its areal and now it could be found in a lot of ponds, channels, reservoirs and lowland rivers in Serbia. According to our results B. sowerbyi has been well adapted in artificial and modified water bodies in Serbia. more...
- Published
- 2005
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- View/download PDF
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