TY  - JOUR
AU  - Tanić, Milan N.
AU  - Janković Mandić, Ljiljana
AU  - Gajić, Boško A.
AU  - Daković, Marko Z.
AU  - Dragović, Snežana D.
AU  - Bačić, Goran G..
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1314
AB  - This study evaluates the influence of the largest Serbian coal-fired power plant on radionuclide concentrations in soil profiles up to 50 cm in depth. Thirty soil profiles were sampled from the plant surroundings (up to 10 km distance) and analyzed using standard methods for soil physicochemical properties and gamma ray spectrometry for specific activities of natural radionuclides (K-40, Ra-226 and Th-232) Spatial and vertical distribution of radionuclides was determined and analyzed to show the relations between the specific activities in the soil and soil properties and the most influential factors of natural radionuclide variability were identified. The radiological indices for surface soil were calculated and radiological risk assessment was performed. The measured specific activities were similar to values of background levels for Serbia. The sampling depth did not show any significant influence on specific activities of natural radionuclides. The strongest predictor of specific activities of the investigated radionuclides was soil granulometry. All parameters of radiological risk assessment were below the recommended values and adopted limits. It appears that the coal-fired power plant does not have a significant impact on the spatial and vertical distribution of natural radionuclides in the area of interest, but technologically enhanced natural radioactivity as a consequence of the plant operations was identified within the first 1.5 km from the power plant.
T2  - Nuclear technology and radiation protection
T1  - Natural Radionuclides in Soil Profiles Surrounding the Largest Coal-Fired Power Plant in Serbia
VL  - 31
IS  - 3
SP  - 247
EP  - 259
DO  - 10.2298/NTRP1603247T
ER  - 

@article{
author = "Tanić, Milan N. and Janković Mandić, Ljiljana and Gajić, Boško A. and Daković, Marko Z. and Dragović, Snežana D. and Bačić, Goran G..",
year = "2016",
abstract = "This study evaluates the influence of the largest Serbian coal-fired power plant on radionuclide concentrations in soil profiles up to 50 cm in depth. Thirty soil profiles were sampled from the plant surroundings (up to 10 km distance) and analyzed using standard methods for soil physicochemical properties and gamma ray spectrometry for specific activities of natural radionuclides (K-40, Ra-226 and Th-232) Spatial and vertical distribution of radionuclides was determined and analyzed to show the relations between the specific activities in the soil and soil properties and the most influential factors of natural radionuclide variability were identified. The radiological indices for surface soil were calculated and radiological risk assessment was performed. The measured specific activities were similar to values of background levels for Serbia. The sampling depth did not show any significant influence on specific activities of natural radionuclides. The strongest predictor of specific activities of the investigated radionuclides was soil granulometry. All parameters of radiological risk assessment were below the recommended values and adopted limits. It appears that the coal-fired power plant does not have a significant impact on the spatial and vertical distribution of natural radionuclides in the area of interest, but technologically enhanced natural radioactivity as a consequence of the plant operations was identified within the first 1.5 km from the power plant.",
journal = "Nuclear technology and radiation protection",
title = "Natural Radionuclides in Soil Profiles Surrounding the Largest Coal-Fired Power Plant in Serbia",
volume = "31",
number = "3",
pages = "247-259",
doi = "10.2298/NTRP1603247T"
}

Tanić, M. N., Janković Mandić, L., Gajić, B. A., Daković, M. Z., Dragović, S. D.,& Bačić, G. G... (2016). Natural Radionuclides in Soil Profiles Surrounding the Largest Coal-Fired Power Plant in Serbia. in Nuclear technology and radiation protection, 31(3), 247-259.
https://doi.org/10.2298/NTRP1603247T

Tanić MN, Janković Mandić L, Gajić BA, Daković MZ, Dragović SD, Bačić GG. Natural Radionuclides in Soil Profiles Surrounding the Largest Coal-Fired Power Plant in Serbia. in Nuclear technology and radiation protection. 2016;31(3):247-259.
doi:10.2298/NTRP1603247T .

Tanić, Milan N., Janković Mandić, Ljiljana, Gajić, Boško A., Daković, Marko Z., Dragović, Snežana D., Bačić, Goran G.., "Natural Radionuclides in Soil Profiles Surrounding the Largest Coal-Fired Power Plant in Serbia" in Nuclear technology and radiation protection, 31, no. 3 (2016):247-259,
https://doi.org/10.2298/NTRP1603247T . .

TY  - CONF
AU  - Jovanović, M.
AU  - Šećerov, Bojana
AU  - Bačić, Goran
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9212
AB  - We  investigated  the  potential  of in  vivoelectron  paramagnetic  resonance (EPR)  in  assessingchemical  reactions  that  occur  during  ionizing  irradiation and  capabilities  of  two  radioprotectors  (an  antibiotic,  anisomycin  and  a naturally  occurring  tiol,  Gl2011)  to  enhance  survival  during  irradiation. Radioprotectors selected are supposed to have different modes of action and in vivoEPR was used to assess whether free radical scavenging has arole in their  action  as  radioprotectors.  Both  compounds  exhibited  similar  and highly   efficient   radioprotective   capabilities   according   to   the   30-days survival  test  (96%  and  87%,  respectively  after  the  dose  of  6.7  Gy). In  vivoEPR showed that free radical scavenging has an important role in the action of  GL2011,  but  not  in  the  case  of  anisomycin.  In  conclusion,  EPR  have unique  capabilities  in  studying  free  radicals in  vivoand  can  beuseful addition to battery of methods needed to study radioprotectorsin vivo.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
T1  - The potential of in vivo EPR in evaluating free radical reactions in irradiated rats and mechanisms of radioprotection
SP  - 491
EP  - 494
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9212
ER  - 

@conference{
author = "Jovanović, M. and Šećerov, Bojana and Bačić, Goran",
year = "2016",
abstract = "We  investigated  the  potential  of in  vivoelectron  paramagnetic  resonance (EPR)  in  assessingchemical  reactions  that  occur  during  ionizing  irradiation and  capabilities  of  two  radioprotectors  (an  antibiotic,  anisomycin  and  a naturally  occurring  tiol,  Gl2011)  to  enhance  survival  during  irradiation. Radioprotectors selected are supposed to have different modes of action and in vivoEPR was used to assess whether free radical scavenging has arole in their  action  as  radioprotectors.  Both  compounds  exhibited  similar  and highly   efficient   radioprotective   capabilities   according   to   the   30-days survival  test  (96%  and  87%,  respectively  after  the  dose  of  6.7  Gy). In  vivoEPR showed that free radical scavenging has an important role in the action of  GL2011,  but  not  in  the  case  of  anisomycin.  In  conclusion,  EPR  have unique  capabilities  in  studying  free  radicals in  vivoand  can  beuseful addition to battery of methods needed to study radioprotectorsin vivo.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry",
title = "The potential of in vivo EPR in evaluating free radical reactions in irradiated rats and mechanisms of radioprotection",
pages = "491-494",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9212"
}

Jovanović, M., Šećerov, B.,& Bačić, G.. (2016). The potential of in vivo EPR in evaluating free radical reactions in irradiated rats and mechanisms of radioprotection. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 491-494.
https://hdl.handle.net/21.15107/rcub_vinar_9212

Jovanović M, Šećerov B, Bačić G. The potential of in vivo EPR in evaluating free radical reactions in irradiated rats and mechanisms of radioprotection. in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry. 2016;:491-494.
https://hdl.handle.net/21.15107/rcub_vinar_9212 .

Jovanović, M., Šećerov, Bojana, Bačić, Goran, "The potential of in vivo EPR in evaluating free radical reactions in irradiated rats and mechanisms of radioprotection" in Physical chemistry 2016 : 13th international conference on fundamental and applied aspects of physical chemistry (2016):491-494,
https://hdl.handle.net/21.15107/rcub_vinar_9212 .

TY  - JOUR
AU  - Janković Mandić, Ljiljana
AU  - Dragović, Ranko M.
AU  - Đorđević, Milan M.
AU  - Đolić, Maja B.
AU  - Onjia, Antonije E.
AU  - Dragović, Snežana D.
AU  - Bačić, Goran G.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/161
AB  - Among radionuclides in the soil deposited after Chernobyl accident, Cs-137 poses considerable environmental and radiological problemdue to its relatively long half-life (30.17 gamma), its abundance in the fallout, high mobility and similarity to potassium as the major plant nutrient. In this study the samples of undisturbed surface soil (n = 250) were taken from 70 regions in Belgrade, during 2006-2010. The specific activities of Cs-137 were measured by gamma-ray spectrometry. Based on obtained results, the external effective dose rates were calculated according to the internationally accepted activity to dose rate conversion equations. The specific activities of Cs-137 were geographically mapped. The presence of Cs-137 has been detected in all soil samples, with high variability of its specific activity, ranging from 3 to 87 Bq kg(-1).The mean specific activity of Cs-137 was 23 Bq kg(-1) and the corresponding absorbed dose was 1.5 nSv h(-1). The observed range reflects the inhomogeneity of the deposition process following the Chernobyl accident. It could also be attributed to topographic differences and spatial differences in physicochemical and biological soil properties, soil type and vegetation cover. The results of the present study could be valuable database for future estimations of the impact of radioactive pollution.
T2  - Hemijska industrija
T1  - Spatial Variability of Cs-137 in the Soil of Belgrade Region (Serbia)
VL  - 68
IS  - 4
SP  - 449
EP  - 455
DO  - 10.2298/HEMIND130124069J
ER  - 

@article{
author = "Janković Mandić, Ljiljana and Dragović, Ranko M. and Đorđević, Milan M. and Đolić, Maja B. and Onjia, Antonije E. and Dragović, Snežana D. and Bačić, Goran G.",
year = "2014",
abstract = "Among radionuclides in the soil deposited after Chernobyl accident, Cs-137 poses considerable environmental and radiological problemdue to its relatively long half-life (30.17 gamma), its abundance in the fallout, high mobility and similarity to potassium as the major plant nutrient. In this study the samples of undisturbed surface soil (n = 250) were taken from 70 regions in Belgrade, during 2006-2010. The specific activities of Cs-137 were measured by gamma-ray spectrometry. Based on obtained results, the external effective dose rates were calculated according to the internationally accepted activity to dose rate conversion equations. The specific activities of Cs-137 were geographically mapped. The presence of Cs-137 has been detected in all soil samples, with high variability of its specific activity, ranging from 3 to 87 Bq kg(-1).The mean specific activity of Cs-137 was 23 Bq kg(-1) and the corresponding absorbed dose was 1.5 nSv h(-1). The observed range reflects the inhomogeneity of the deposition process following the Chernobyl accident. It could also be attributed to topographic differences and spatial differences in physicochemical and biological soil properties, soil type and vegetation cover. The results of the present study could be valuable database for future estimations of the impact of radioactive pollution.",
journal = "Hemijska industrija",
title = "Spatial Variability of Cs-137 in the Soil of Belgrade Region (Serbia)",
volume = "68",
number = "4",
pages = "449-455",
doi = "10.2298/HEMIND130124069J"
}

Janković Mandić, L., Dragović, R. M., Đorđević, M. M., Đolić, M. B., Onjia, A. E., Dragović, S. D.,& Bačić, G. G.. (2014). Spatial Variability of Cs-137 in the Soil of Belgrade Region (Serbia). in Hemijska industrija, 68(4), 449-455.
https://doi.org/10.2298/HEMIND130124069J

Janković Mandić L, Dragović RM, Đorđević MM, Đolić MB, Onjia AE, Dragović SD, Bačić GG. Spatial Variability of Cs-137 in the Soil of Belgrade Region (Serbia). in Hemijska industrija. 2014;68(4):449-455.
doi:10.2298/HEMIND130124069J .

Janković Mandić, Ljiljana, Dragović, Ranko M., Đorđević, Milan M., Đolić, Maja B., Onjia, Antonije E., Dragović, Snežana D., Bačić, Goran G., "Spatial Variability of Cs-137 in the Soil of Belgrade Region (Serbia)" in Hemijska industrija, 68, no. 4 (2014):449-455,
https://doi.org/10.2298/HEMIND130124069J . .

TY  - JOUR
AU  - Samolov, Aleksandra D.
AU  - Dragović, Snežana D.
AU  - Daković, Marko Z.
AU  - Bačić, Goran G.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/166
AB  - The application of the principal component analysis and artificial neural network method in forecasting Cs-137 behaviour in the air as the function of meteorological parameters is presented. The model was optimized and tested using Cs-137 specific activities obtained by standard gamma-ray spectrometric analysis of air samples collected in Belgrade (Serbia) during 2009-2011 and meteorological data for the same period. Low correlation (r = 0.20) between experimental values of Cs-137 specific activities and those predicted by artificial neural network was obtained. This suggests that artificial neural network in the case of prediction of Cs-137 specific activity; using temperature, insolation, and global Sun warming does not perform well, which can be explained by the relative independence of Cs-137 specific activity of particular meteorological parameters and not by the ineffectiveness of artificial neural network in relating these parameters in general.
T2  - Nuclear technology and radiation protection
T1  - Neural Networks in Analysing 137Cs Behaviour in the Air in the Belgrade Area
VL  - 29
IS  - 3
SP  - 226
EP  - 232
DO  - 10.2298/NTRP1403226S
ER  - 

@article{
author = "Samolov, Aleksandra D. and Dragović, Snežana D. and Daković, Marko Z. and Bačić, Goran G.",
year = "2014",
abstract = "The application of the principal component analysis and artificial neural network method in forecasting Cs-137 behaviour in the air as the function of meteorological parameters is presented. The model was optimized and tested using Cs-137 specific activities obtained by standard gamma-ray spectrometric analysis of air samples collected in Belgrade (Serbia) during 2009-2011 and meteorological data for the same period. Low correlation (r = 0.20) between experimental values of Cs-137 specific activities and those predicted by artificial neural network was obtained. This suggests that artificial neural network in the case of prediction of Cs-137 specific activity; using temperature, insolation, and global Sun warming does not perform well, which can be explained by the relative independence of Cs-137 specific activity of particular meteorological parameters and not by the ineffectiveness of artificial neural network in relating these parameters in general.",
journal = "Nuclear technology and radiation protection",
title = "Neural Networks in Analysing 137Cs Behaviour in the Air in the Belgrade Area",
volume = "29",
number = "3",
pages = "226-232",
doi = "10.2298/NTRP1403226S"
}

Samolov, A. D., Dragović, S. D., Daković, M. Z.,& Bačić, G. G.. (2014). Neural Networks in Analysing 137Cs Behaviour in the Air in the Belgrade Area. in Nuclear technology and radiation protection, 29(3), 226-232.
https://doi.org/10.2298/NTRP1403226S

Samolov AD, Dragović SD, Daković MZ, Bačić GG. Neural Networks in Analysing 137Cs Behaviour in the Air in the Belgrade Area. in Nuclear technology and radiation protection. 2014;29(3):226-232.
doi:10.2298/NTRP1403226S .

Samolov, Aleksandra D., Dragović, Snežana D., Daković, Marko Z., Bačić, Goran G., "Neural Networks in Analysing 137Cs Behaviour in the Air in the Belgrade Area" in Nuclear technology and radiation protection, 29, no. 3 (2014):226-232,
https://doi.org/10.2298/NTRP1403226S . .

TY  - JOUR
AU  - Samolov, Aleksandra D.
AU  - Dragović, Snežana D.
AU  - Daković, Marko
AU  - Bačić, Goran
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/208
AB  - A multilayer perceptron artificial neural network (ANN) model for the prediction of the Be-7 behaviour in the air as the function of meteorological parameters was developed. The model was optimized and tested using Be-7 activity concentrations obtained by standard gamma-ray spectrometric analysis of air samples collected in Belgrade (Serbia) during 2009-2011 and meteorological data for the same period. Good correlation (r = 0.91) between experimental values of Be-7 activity concentrations and those predicted by ANN was obtained. The good performance of the model in prediction of Be-7 activity concentrations could provide basis for construction of models which would forecast behaviour of other airborne radionuclides. (C) 2014 Elsevier Ltd. All rights reserved.
T2  - Journal of Environmental Radioactivity
T1  - Analysis of 7Be behaviour in the air by using a multilayer perceptron neural network
VL  - 137
SP  - 198
EP  - 203
DO  - 10.1016/j.jenvrad.2014.07.016
ER  - 

@article{
author = "Samolov, Aleksandra D. and Dragović, Snežana D. and Daković, Marko and Bačić, Goran",
year = "2014",
abstract = "A multilayer perceptron artificial neural network (ANN) model for the prediction of the Be-7 behaviour in the air as the function of meteorological parameters was developed. The model was optimized and tested using Be-7 activity concentrations obtained by standard gamma-ray spectrometric analysis of air samples collected in Belgrade (Serbia) during 2009-2011 and meteorological data for the same period. Good correlation (r = 0.91) between experimental values of Be-7 activity concentrations and those predicted by ANN was obtained. The good performance of the model in prediction of Be-7 activity concentrations could provide basis for construction of models which would forecast behaviour of other airborne radionuclides. (C) 2014 Elsevier Ltd. All rights reserved.",
journal = "Journal of Environmental Radioactivity",
title = "Analysis of 7Be behaviour in the air by using a multilayer perceptron neural network",
volume = "137",
pages = "198-203",
doi = "10.1016/j.jenvrad.2014.07.016"
}

Samolov, A. D., Dragović, S. D., Daković, M.,& Bačić, G.. (2014). Analysis of 7Be behaviour in the air by using a multilayer perceptron neural network. in Journal of Environmental Radioactivity, 137, 198-203.
https://doi.org/10.1016/j.jenvrad.2014.07.016

Samolov AD, Dragović SD, Daković M, Bačić G. Analysis of 7Be behaviour in the air by using a multilayer perceptron neural network. in Journal of Environmental Radioactivity. 2014;137:198-203.
doi:10.1016/j.jenvrad.2014.07.016 .

Samolov, Aleksandra D., Dragović, Snežana D., Daković, Marko, Bačić, Goran, "Analysis of 7Be behaviour in the air by using a multilayer perceptron neural network" in Journal of Environmental Radioactivity, 137 (2014):198-203,
https://doi.org/10.1016/j.jenvrad.2014.07.016 . .

TY  - JOUR
AU  - Ganesan, Minu Karthika
AU  - Jovanović, Miloš
AU  - Šećerov, Bojana Lj.
AU  - Ignjatović, Marija
AU  - Bilban, Martin
AU  - Anđus, Pavle R.
AU  - El Refaei, Amal
AU  - Jung, Gangsoo
AU  - Li, Lin
AU  - Sase, Ajinkya
AU  - Chen, Weiqiang
AU  - Bačić, Goran
AU  - Lubec, Gert
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/133
T2  - Amino Acids
T1  - Erratum to: Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat (vol 46, pg 1681, 2014)
VL  - 46
IS  - 10
SP  - 2445
EP  - 2445
DO  - 10.1007/s00726-014-1791-2
ER  - 

@article{
author = "Ganesan, Minu Karthika and Jovanović, Miloš and Šećerov, Bojana Lj. and Ignjatović, Marija and Bilban, Martin and Anđus, Pavle R. and El Refaei, Amal and Jung, Gangsoo and Li, Lin and Sase, Ajinkya and Chen, Weiqiang and Bačić, Goran and Lubec, Gert",
year = "2014",
journal = "Amino Acids",
title = "Erratum to: Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat (vol 46, pg 1681, 2014)",
volume = "46",
number = "10",
pages = "2445-2445",
doi = "10.1007/s00726-014-1791-2"
}

Ganesan, M. K., Jovanović, M., Šećerov, B. Lj., Ignjatović, M., Bilban, M., Anđus, P. R., El Refaei, A., Jung, G., Li, L., Sase, A., Chen, W., Bačić, G.,& Lubec, G.. (2014). Erratum to: Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat (vol 46, pg 1681, 2014). in Amino Acids, 46(10), 2445-2445.
https://doi.org/10.1007/s00726-014-1791-2

Ganesan MK, Jovanović M, Šećerov BL, Ignjatović M, Bilban M, Anđus PR, El Refaei A, Jung G, Li L, Sase A, Chen W, Bačić G, Lubec G. Erratum to: Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat (vol 46, pg 1681, 2014). in Amino Acids. 2014;46(10):2445-2445.
doi:10.1007/s00726-014-1791-2 .

Ganesan, Minu Karthika, Jovanović, Miloš, Šećerov, Bojana Lj., Ignjatović, Marija, Bilban, Martin, Anđus, Pavle R., El Refaei, Amal, Jung, Gangsoo, Li, Lin, Sase, Ajinkya, Chen, Weiqiang, Bačić, Goran, Lubec, Gert, "Erratum to: Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat (vol 46, pg 1681, 2014)" in Amino Acids, 46, no. 10 (2014):2445-2445,
https://doi.org/10.1007/s00726-014-1791-2 . .

TY  - JOUR
AU  - Okić-Đorđević, Ivana
AU  - Trivanović, Drenka
AU  - Jovanović, Miloš
AU  - Ignjatović, Marija
AU  - Šećerov, Bojana Lj.
AU  - Mojovic, Milos
AU  - Bugarski, Diana
AU  - Bačić, Goran
AU  - Anđus, Pavle R.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5935
AB  - Aim To investigate the survival of laboratory rats after irradiation and to study the cellularity of their bone marrow and the multipotential mesenchymal stem cells (BM-MSCs) in groups treated with or without a new thiol-based radioprotector (GM2011) Methods Animals were irradiated by a Cobalt gamma source at 6.7 Gy. Treated animals were given i.p. GM2011 30 minutes before and 3 and 7 hours after irradiation. Controls consisted of sham irradiated animals without treatment and animals treated without irradiation. After 30 days post-irradiation, animals were sacrificed and bone marrow cells were prepared from isolated femurs. A colony forming unit-fibroblast (CFU-F) assay was performed to obtain the number of BM-MSCs. Results In the treated group, 87% of animals survived, compared to only 30% in the non-treated irradiated group. Irradiation induced significant changes in the bone marrow of the treated rats (total bone marrow cellularity was reduced by similar to 60% - from 63 to 28 cells x10(6)/femur and the frequency of the CFU-F per femur by similar to 70% - from 357 to 97), however GL2011 almost completely prevented the suppressive effect observed on day 30 post-irradiation (71 cells x 10(6)/femur and 230 CFU-F/femur). Conclusion Although the irradiation dosage was relatively high, GL2011 acted as a very effective new radioprotector. The recovery of the BN-MSCs and their counts support the effectiveness of the studied radioprotector.
T2  - Croatian Medical Journal
T1  - Increased survival after irradiation followed by regeneration of bone marrow stromal cells with a novel thiol-based radioprotector
VL  - 55
IS  - 1
SP  - 45
EP  - 49
DO  - 10.3325/cmj.2014.55.45
ER  - 

@article{
author = "Okić-Đorđević, Ivana and Trivanović, Drenka and Jovanović, Miloš and Ignjatović, Marija and Šećerov, Bojana Lj. and Mojovic, Milos and Bugarski, Diana and Bačić, Goran and Anđus, Pavle R.",
year = "2014",
abstract = "Aim To investigate the survival of laboratory rats after irradiation and to study the cellularity of their bone marrow and the multipotential mesenchymal stem cells (BM-MSCs) in groups treated with or without a new thiol-based radioprotector (GM2011) Methods Animals were irradiated by a Cobalt gamma source at 6.7 Gy. Treated animals were given i.p. GM2011 30 minutes before and 3 and 7 hours after irradiation. Controls consisted of sham irradiated animals without treatment and animals treated without irradiation. After 30 days post-irradiation, animals were sacrificed and bone marrow cells were prepared from isolated femurs. A colony forming unit-fibroblast (CFU-F) assay was performed to obtain the number of BM-MSCs. Results In the treated group, 87% of animals survived, compared to only 30% in the non-treated irradiated group. Irradiation induced significant changes in the bone marrow of the treated rats (total bone marrow cellularity was reduced by similar to 60% - from 63 to 28 cells x10(6)/femur and the frequency of the CFU-F per femur by similar to 70% - from 357 to 97), however GL2011 almost completely prevented the suppressive effect observed on day 30 post-irradiation (71 cells x 10(6)/femur and 230 CFU-F/femur). Conclusion Although the irradiation dosage was relatively high, GL2011 acted as a very effective new radioprotector. The recovery of the BN-MSCs and their counts support the effectiveness of the studied radioprotector.",
journal = "Croatian Medical Journal",
title = "Increased survival after irradiation followed by regeneration of bone marrow stromal cells with a novel thiol-based radioprotector",
volume = "55",
number = "1",
pages = "45-49",
doi = "10.3325/cmj.2014.55.45"
}

Okić-Đorđević, I., Trivanović, D., Jovanović, M., Ignjatović, M., Šećerov, B. Lj., Mojovic, M., Bugarski, D., Bačić, G.,& Anđus, P. R.. (2014). Increased survival after irradiation followed by regeneration of bone marrow stromal cells with a novel thiol-based radioprotector. in Croatian Medical Journal, 55(1), 45-49.
https://doi.org/10.3325/cmj.2014.55.45

Okić-Đorđević I, Trivanović D, Jovanović M, Ignjatović M, Šećerov BL, Mojovic M, Bugarski D, Bačić G, Anđus PR. Increased survival after irradiation followed by regeneration of bone marrow stromal cells with a novel thiol-based radioprotector. in Croatian Medical Journal. 2014;55(1):45-49.
doi:10.3325/cmj.2014.55.45 .

Okić-Đorđević, Ivana, Trivanović, Drenka, Jovanović, Miloš, Ignjatović, Marija, Šećerov, Bojana Lj., Mojovic, Milos, Bugarski, Diana, Bačić, Goran, Anđus, Pavle R., "Increased survival after irradiation followed by regeneration of bone marrow stromal cells with a novel thiol-based radioprotector" in Croatian Medical Journal, 55, no. 1 (2014):45-49,
https://doi.org/10.3325/cmj.2014.55.45 . .

TY  - JOUR
AU  - Ganesan, Minu Karthika
AU  - Jovanović, Miloš
AU  - Šećerov, Bojana Lj.
AU  - Ignjatović, Marija
AU  - Bilban, Martin
AU  - Anđus, Pavle R.
AU  - El Refaei, Amal
AU  - Jung, Gangsoo
AU  - Li, Lin
AU  - Sase, Ajinkya
AU  - Chen, Weiqiang
AU  - Bačić, Goran
AU  - Lubec, Gert
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6052
AB  - GL2011 is a naturally occurring thiol compound and a series of thiol compounds have been proposed as radioprotectors. Radioprotective efficacy of a triple intraperitoneal dose of GL2011 of 100 mg/kg body weight of Wistar rats, 30 min prior to and 3 and 6 h following irradiation (6.7 Gy) was evaluated. Four groups of animals were used, vehicle-treated non-irradiated (VN), GL2011-treated and irradiated (GI), GL2011-treated and non-irradiated (GN) and vehicle-treated and irradiated (VI) (n = 30 per group). The radioprotective efficacy of GL2011 was determined by measuring 28-day survival and intestinal crypt cell survival. Neuroprotection in terms of behaviour was evaluated using the behavioural observational battery, open field test and elevated plus maze paradigm. An RNA microarray was carried out in order to show differences at the RNA level between VI and VN groups. Brain protein changes were identified using a gel-based proteomics method and major brain receptor complex levels were determined by blue-native gels followed by immunoblotting. 28-Day survival rate in VI was 30 %, in GI survival was 93 %, survival of VN and GN was 100 %. Jejunal crypt cell survival was significantly enhanced in GI. Protein-level changes of peroxiredoxin-5, Mn-superoxide dismutase 2, voltage-dependent anion-selective channel protein 1, septin 5 and dopamine D2 receptor complex levels were paralleling radiation damage and protection. Taken together, the findings demonstrate that GL2011 improves survival rates and jejunal crypt survival, provides partial neuroprotection at the behavioural level and modulates proteins known to be involved in protection against oxidative stress-mediated cell damage.
T2  - Amino Acids
T1  - Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat
VL  - 46
IS  - 7
SP  - 1681
EP  - 1696
DO  - 10.1007/s00726-014-1728-9
ER  - 

@article{
author = "Ganesan, Minu Karthika and Jovanović, Miloš and Šećerov, Bojana Lj. and Ignjatović, Marija and Bilban, Martin and Anđus, Pavle R. and El Refaei, Amal and Jung, Gangsoo and Li, Lin and Sase, Ajinkya and Chen, Weiqiang and Bačić, Goran and Lubec, Gert",
year = "2014",
abstract = "GL2011 is a naturally occurring thiol compound and a series of thiol compounds have been proposed as radioprotectors. Radioprotective efficacy of a triple intraperitoneal dose of GL2011 of 100 mg/kg body weight of Wistar rats, 30 min prior to and 3 and 6 h following irradiation (6.7 Gy) was evaluated. Four groups of animals were used, vehicle-treated non-irradiated (VN), GL2011-treated and irradiated (GI), GL2011-treated and non-irradiated (GN) and vehicle-treated and irradiated (VI) (n = 30 per group). The radioprotective efficacy of GL2011 was determined by measuring 28-day survival and intestinal crypt cell survival. Neuroprotection in terms of behaviour was evaluated using the behavioural observational battery, open field test and elevated plus maze paradigm. An RNA microarray was carried out in order to show differences at the RNA level between VI and VN groups. Brain protein changes were identified using a gel-based proteomics method and major brain receptor complex levels were determined by blue-native gels followed by immunoblotting. 28-Day survival rate in VI was 30 %, in GI survival was 93 %, survival of VN and GN was 100 %. Jejunal crypt cell survival was significantly enhanced in GI. Protein-level changes of peroxiredoxin-5, Mn-superoxide dismutase 2, voltage-dependent anion-selective channel protein 1, septin 5 and dopamine D2 receptor complex levels were paralleling radiation damage and protection. Taken together, the findings demonstrate that GL2011 improves survival rates and jejunal crypt survival, provides partial neuroprotection at the behavioural level and modulates proteins known to be involved in protection against oxidative stress-mediated cell damage.",
journal = "Amino Acids",
title = "Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat",
volume = "46",
number = "7",
pages = "1681-1696",
doi = "10.1007/s00726-014-1728-9"
}

Ganesan, M. K., Jovanović, M., Šećerov, B. Lj., Ignjatović, M., Bilban, M., Anđus, P. R., El Refaei, A., Jung, G., Li, L., Sase, A., Chen, W., Bačić, G.,& Lubec, G.. (2014). Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat. in Amino Acids, 46(7), 1681-1696.
https://doi.org/10.1007/s00726-014-1728-9

Ganesan MK, Jovanović M, Šećerov BL, Ignjatović M, Bilban M, Anđus PR, El Refaei A, Jung G, Li L, Sase A, Chen W, Bačić G, Lubec G. Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat. in Amino Acids. 2014;46(7):1681-1696.
doi:10.1007/s00726-014-1728-9 .

Ganesan, Minu Karthika, Jovanović, Miloš, Šećerov, Bojana Lj., Ignjatović, Marija, Bilban, Martin, Anđus, Pavle R., El Refaei, Amal, Jung, Gangsoo, Li, Lin, Sase, Ajinkya, Chen, Weiqiang, Bačić, Goran, Lubec, Gert, "Radiation protection from whole-body gamma irradiation (6.7 Gy): behavioural effects and brain protein-level changes by an aminothiol compound GL2011 in the Wistar rat" in Amino Acids, 46, no. 7 (2014):1681-1696,
https://doi.org/10.1007/s00726-014-1728-9 . .

TY  - JOUR
AU  - Prokic, B. B.
AU  - Bačić, Goran
AU  - Prokic, B.
AU  - Kalijadis, Ana
AU  - Todorović, Vera
AU  - Puškaš, Nela
AU  - Vidojevic, D.
AU  - Laušević, Mila D.
AU  - Laušević, Zoran
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5251
AB  - In modern medicine implants are very important and so is their design and choice of materials. Almost equally important is the choice of imaging technique used to in vivo monitor their fate and biocompatibility. The aim of this study was to evaluate the ability of magnetic resonance imaging (MRI) in monitoring the biocompatibility of two newly designed carbon fibers. We have analyzed the interaction of surface functionalized carbon fibers (basic and acidic) with muscle and subcutaneous tissues of rabbits. MRI techniques showed to be useful in longitudinal monitoring of the surrounding tissues, assessment of biocompatibility of new implants, and in the distinction of in vivo surgical edema from inflammation. Histopathology confirmed MRI results, thus showing that MRI has a great potential for in vivo studies of such materials.
T2  - Acta Veterinaria, Beograd
T1  - In Vivo Mri Biocompatibility Evaluation of Functionalized Carbon Fibers in Reaction with Soft Tissues
VL  - 62
IS  - 5-6
SP  - 683
EP  - 696
DO  - 10.2298/AVB1206683P
ER  - 

@article{
author = "Prokic, B. B. and Bačić, Goran and Prokic, B. and Kalijadis, Ana and Todorović, Vera and Puškaš, Nela and Vidojevic, D. and Laušević, Mila D. and Laušević, Zoran",
year = "2012",
abstract = "In modern medicine implants are very important and so is their design and choice of materials. Almost equally important is the choice of imaging technique used to in vivo monitor their fate and biocompatibility. The aim of this study was to evaluate the ability of magnetic resonance imaging (MRI) in monitoring the biocompatibility of two newly designed carbon fibers. We have analyzed the interaction of surface functionalized carbon fibers (basic and acidic) with muscle and subcutaneous tissues of rabbits. MRI techniques showed to be useful in longitudinal monitoring of the surrounding tissues, assessment of biocompatibility of new implants, and in the distinction of in vivo surgical edema from inflammation. Histopathology confirmed MRI results, thus showing that MRI has a great potential for in vivo studies of such materials.",
journal = "Acta Veterinaria, Beograd",
title = "In Vivo Mri Biocompatibility Evaluation of Functionalized Carbon Fibers in Reaction with Soft Tissues",
volume = "62",
number = "5-6",
pages = "683-696",
doi = "10.2298/AVB1206683P"
}

Prokic, B. B., Bačić, G., Prokic, B., Kalijadis, A., Todorović, V., Puškaš, N., Vidojevic, D., Laušević, M. D.,& Laušević, Z.. (2012). In Vivo Mri Biocompatibility Evaluation of Functionalized Carbon Fibers in Reaction with Soft Tissues. in Acta Veterinaria, Beograd, 62(5-6), 683-696.
https://doi.org/10.2298/AVB1206683P

Prokic BB, Bačić G, Prokic B, Kalijadis A, Todorović V, Puškaš N, Vidojevic D, Laušević MD, Laušević Z. In Vivo Mri Biocompatibility Evaluation of Functionalized Carbon Fibers in Reaction with Soft Tissues. in Acta Veterinaria, Beograd. 2012;62(5-6):683-696.
doi:10.2298/AVB1206683P .

Prokic, B. B., Bačić, Goran, Prokic, B., Kalijadis, Ana, Todorović, Vera, Puškaš, Nela, Vidojevic, D., Laušević, Mila D., Laušević, Zoran, "In Vivo Mri Biocompatibility Evaluation of Functionalized Carbon Fibers in Reaction with Soft Tissues" in Acta Veterinaria, Beograd, 62, no. 5-6 (2012):683-696,
https://doi.org/10.2298/AVB1206683P . .

TY  - JOUR
AU  - Šećerov, Bojana Lj.
AU  - Bačić, Goran G.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4635
AB  - The essential prerequisite of radiation dosimetry is to provide quality assurance and documentation that the irradiation procedure has been carried out according to the specification requirement of correct calibration of the chosen dosimetry system. At the Radiation Plant of the Vinca Institute of Nuclear Sciences we compared two recommended protocols of irradiation procedures in the calibration of dosimetry systems in radiation processing: (1) by irradiation of routine dosimeters (ethanol-chlorobenzene - ECB) at the calibration laboratory and (2), by in-plant calibration with alanine transfer - dosimeters. The critical point for in-plant calibration is irradiation geometry, so we carefully positioned the phantom carrying both dosimeters in order to minimize dose gradients across the sample. The analysis of results obtained showed that the difference among determined absorbed doses for the construction of calibration curves between these two methods, (alanine vs. ECB), is less than 1%. The difference in combined standard uncertainty for each calibration procedure is 0.1%. These results demonstrate that our in-plant calibration is as good as calibration by irradiation at the calibration laboratory and validates our placement of the irradiation phantom during irradiation.
T2  - Nuclear technology and radiation protection
T1  - Calibration of Routine Dosimeters in Radiation Processing: Validation Procedure for In-Plant Calibration
VL  - 26
IS  - 3
SP  - 271
EP  - 274
DO  - 10.2298/NTRP1103271S
ER  - 

@article{
author = "Šećerov, Bojana Lj. and Bačić, Goran G.",
year = "2011",
abstract = "The essential prerequisite of radiation dosimetry is to provide quality assurance and documentation that the irradiation procedure has been carried out according to the specification requirement of correct calibration of the chosen dosimetry system. At the Radiation Plant of the Vinca Institute of Nuclear Sciences we compared two recommended protocols of irradiation procedures in the calibration of dosimetry systems in radiation processing: (1) by irradiation of routine dosimeters (ethanol-chlorobenzene - ECB) at the calibration laboratory and (2), by in-plant calibration with alanine transfer - dosimeters. The critical point for in-plant calibration is irradiation geometry, so we carefully positioned the phantom carrying both dosimeters in order to minimize dose gradients across the sample. The analysis of results obtained showed that the difference among determined absorbed doses for the construction of calibration curves between these two methods, (alanine vs. ECB), is less than 1%. The difference in combined standard uncertainty for each calibration procedure is 0.1%. These results demonstrate that our in-plant calibration is as good as calibration by irradiation at the calibration laboratory and validates our placement of the irradiation phantom during irradiation.",
journal = "Nuclear technology and radiation protection",
title = "Calibration of Routine Dosimeters in Radiation Processing: Validation Procedure for In-Plant Calibration",
volume = "26",
number = "3",
pages = "271-274",
doi = "10.2298/NTRP1103271S"
}

Šećerov, B. Lj.,& Bačić, G. G.. (2011). Calibration of Routine Dosimeters in Radiation Processing: Validation Procedure for In-Plant Calibration. in Nuclear technology and radiation protection, 26(3), 271-274.
https://doi.org/10.2298/NTRP1103271S

Šećerov BL, Bačić GG. Calibration of Routine Dosimeters in Radiation Processing: Validation Procedure for In-Plant Calibration. in Nuclear technology and radiation protection. 2011;26(3):271-274.
doi:10.2298/NTRP1103271S .

Šećerov, Bojana Lj., Bačić, Goran G., "Calibration of Routine Dosimeters in Radiation Processing: Validation Procedure for In-Plant Calibration" in Nuclear technology and radiation protection, 26, no. 3 (2011):271-274,
https://doi.org/10.2298/NTRP1103271S . .

TY  - JOUR
AU  - Šećerov, Bojana Lj.
AU  - Dakovic, Marko
AU  - Borojević, Nenad
AU  - Bačić, Goran
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4250
AB  - Various forms of Gafchromic films that are increasingly used for dosimetry in radiotherapy offer the prospect of reproducible and accurate high-resolution two-dimensional dose measurements, but there are many unresolved issues regarding the optimal choice of densitometric procedure used for the films optical density (OD) readout. There are conflicting requirements for scanners (sensitivity, availability, price) and commercial document scanners appears to be a reasonable option, hence we analyzed the measured sublinear dose response of these scanners. Using measured film absorption spectra we were able to make quantitative distinction between various factors affecting the sublinearity and to demonstrate that the dose response curve can be predicted for any selected light source used for scanning. We also used the commercial narrow bandpass filters in conjunction with document scanners to investigate whether such an inexpensive option can improve their sensitivity, but results were not encouraging. Finally, we analyzed the suitability of proposed fitting equations for the calibration of the dose response and found that their reliability largely depends on the dose range used for the calibration. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry
VL  - 633
IS  - 1
SP  - 66
EP  - 71
DO  - 10.1016/j.nima.2010.12.234
ER  - 

@article{
author = "Šećerov, Bojana Lj. and Dakovic, Marko and Borojević, Nenad and Bačić, Goran",
year = "2011",
abstract = "Various forms of Gafchromic films that are increasingly used for dosimetry in radiotherapy offer the prospect of reproducible and accurate high-resolution two-dimensional dose measurements, but there are many unresolved issues regarding the optimal choice of densitometric procedure used for the films optical density (OD) readout. There are conflicting requirements for scanners (sensitivity, availability, price) and commercial document scanners appears to be a reasonable option, hence we analyzed the measured sublinear dose response of these scanners. Using measured film absorption spectra we were able to make quantitative distinction between various factors affecting the sublinearity and to demonstrate that the dose response curve can be predicted for any selected light source used for scanning. We also used the commercial narrow bandpass filters in conjunction with document scanners to investigate whether such an inexpensive option can improve their sensitivity, but results were not encouraging. Finally, we analyzed the suitability of proposed fitting equations for the calibration of the dose response and found that their reliability largely depends on the dose range used for the calibration. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry",
volume = "633",
number = "1",
pages = "66-71",
doi = "10.1016/j.nima.2010.12.234"
}

Šećerov, B. Lj., Dakovic, M., Borojević, N.,& Bačić, G.. (2011). Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 633(1), 66-71.
https://doi.org/10.1016/j.nima.2010.12.234

Šećerov BL, Dakovic M, Borojević N, Bačić G. Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2011;633(1):66-71.
doi:10.1016/j.nima.2010.12.234 .

Šećerov, Bojana Lj., Dakovic, Marko, Borojević, Nenad, Bačić, Goran, "Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 633, no. 1 (2011):66-71,
https://doi.org/10.1016/j.nima.2010.12.234 . .

TY  - CONF
AU  - Šećerov, Bojana
AU  - Bačić, Goran
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9322
AB  - The essential prerequisite of radiation dosimetry is to provide quality assurance and
documentation that the irradiation procedure has been carried out according to
specifications requirement of the correct calibration of the chosen dosimetry
system. In the Radiation Plant at the Vinča Institute, we compared two
recommended protocols in calibration of dosimetry systems in radiation
processing: (i) by using standardized routine dosimeters (ethanol-chlorobenzene
ECB) from the reference laboratory and (ii) by in-plant calibration with the alanine
transfer dosimeters. The analysis of results showed that our in-plant calibration is
as good as when standardized dosimeters are used, thus validating our irradiation
geometry in the irradiation process.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
T1  - Notes on the calibration of routine dosimeters in radiation processing
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9322
ER  - 

@conference{
author = "Šećerov, Bojana and Bačić, Goran",
year = "2010",
abstract = "The essential prerequisite of radiation dosimetry is to provide quality assurance and
documentation that the irradiation procedure has been carried out according to
specifications requirement of the correct calibration of the chosen dosimetry
system. In the Radiation Plant at the Vinča Institute, we compared two
recommended protocols in calibration of dosimetry systems in radiation
processing: (i) by using standardized routine dosimeters (ethanol-chlorobenzene
ECB) from the reference laboratory and (ii) by in-plant calibration with the alanine
transfer dosimeters. The analysis of results showed that our in-plant calibration is
as good as when standardized dosimeters are used, thus validating our irradiation
geometry in the irradiation process.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry",
title = "Notes on the calibration of routine dosimeters in radiation processing",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9322"
}

Šećerov, B.,& Bačić, G.. (2010). Notes on the calibration of routine dosimeters in radiation processing. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia..
https://hdl.handle.net/21.15107/rcub_vinar_9322

Šećerov B, Bačić G. Notes on the calibration of routine dosimeters in radiation processing. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_9322 .

Šećerov, Bojana, Bačić, Goran, "Notes on the calibration of routine dosimeters in radiation processing" in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry (2010),
https://hdl.handle.net/21.15107/rcub_vinar_9322 .

TY  - JOUR
AU  - Bačić, Goran
AU  - Spasojević, Ivan
AU  - Šećerov, Bojana Lj.
AU  - Mojovic, Milos
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6755
AB  - The choice of the spin-trap that is to be applied in any EPR study represents the crossroad between a comprehensive investigation and an ordinary quantification of production of radicals. So, the scope of our study was to compare the performance of different spin-traps for qualitative analysis of radical-generating systems, and their ability to recognize previously unnoticed radicals. In addition, we present a brief account of the difficulties involved in the detection of oxygen-centered radicals in chemical and biological systems accompanied by the rationale for using the EPR spin-trapping technique in quantitative studies of such reactive species. Certain technical aspects of EPR experiments related to efficient trapping of free radicals in biochemical systems are also discussed. As an example we present here results obtained using EPR spectroscopy and the spin-trap DEPMPO, which show that the Fenton reaction, as well as various biological systems generate a previously unappreciated hydrogen (H-center dot) atom. (C) 2007 Elsevier B.V. All rights reserved.
T2  - Spectrochimica Acta. Part A: Molecular and Biomolecular Spectroscopy
T1  - Spin-trapping of oxygen free radicals in chemical and biological systems: New traps, radicals and possibilities
VL  - 69
IS  - 5
SP  - 1354
EP  - 1366
DO  - 10.1016/j.saa.2007.09.047
ER  - 

@article{
author = "Bačić, Goran and Spasojević, Ivan and Šećerov, Bojana Lj. and Mojovic, Milos",
year = "2008",
abstract = "The choice of the spin-trap that is to be applied in any EPR study represents the crossroad between a comprehensive investigation and an ordinary quantification of production of radicals. So, the scope of our study was to compare the performance of different spin-traps for qualitative analysis of radical-generating systems, and their ability to recognize previously unnoticed radicals. In addition, we present a brief account of the difficulties involved in the detection of oxygen-centered radicals in chemical and biological systems accompanied by the rationale for using the EPR spin-trapping technique in quantitative studies of such reactive species. Certain technical aspects of EPR experiments related to efficient trapping of free radicals in biochemical systems are also discussed. As an example we present here results obtained using EPR spectroscopy and the spin-trap DEPMPO, which show that the Fenton reaction, as well as various biological systems generate a previously unappreciated hydrogen (H-center dot) atom. (C) 2007 Elsevier B.V. All rights reserved.",
journal = "Spectrochimica Acta. Part A: Molecular and Biomolecular Spectroscopy",
title = "Spin-trapping of oxygen free radicals in chemical and biological systems: New traps, radicals and possibilities",
volume = "69",
number = "5",
pages = "1354-1366",
doi = "10.1016/j.saa.2007.09.047"
}

Bačić, G., Spasojević, I., Šećerov, B. Lj.,& Mojovic, M.. (2008). Spin-trapping of oxygen free radicals in chemical and biological systems: New traps, radicals and possibilities. in Spectrochimica Acta. Part A: Molecular and Biomolecular Spectroscopy, 69(5), 1354-1366.
https://doi.org/10.1016/j.saa.2007.09.047

Bačić G, Spasojević I, Šećerov BL, Mojovic M. Spin-trapping of oxygen free radicals in chemical and biological systems: New traps, radicals and possibilities. in Spectrochimica Acta. Part A: Molecular and Biomolecular Spectroscopy. 2008;69(5):1354-1366.
doi:10.1016/j.saa.2007.09.047 .

Bačić, Goran, Spasojević, Ivan, Šećerov, Bojana Lj., Mojovic, Milos, "Spin-trapping of oxygen free radicals in chemical and biological systems: New traps, radicals and possibilities" in Spectrochimica Acta. Part A: Molecular and Biomolecular Spectroscopy, 69, no. 5 (2008):1354-1366,
https://doi.org/10.1016/j.saa.2007.09.047 . .

TY  - JOUR
AU  - Šećerov, Bojana Lj.
AU  - Bačić, Goran
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3526
AB  - Dichromate and ethanol-chlorobenzene dosimeters were studied in conditions of annual temperature changes during process control at the Radiation Unit of the Vinca Institute. Measurements were performed in February (10-14 degrees C) and August (22-35 degrees C) for the dose range 10-50 kGy. The difference between measurements using these dosimeters is in agreement with the previous laboratory studies of temperature effect on the dose response of a dichromate dosimeter. The absorbed doses measured by these two dosimeters are in good agreement and the difference is within a limit of 3% for the studied dose range. The uncertainties of dose measurements using dichromate dosimeter arising from irradiation during annual temperature changes appear to be well within acceptable limits indicating that this dosimeter can be used as a routine dosimeter.
T2  - Nukleonika
T1  - Comparison of dichromate and ethanol-chlorobenzene dosimeters in high dose radiation processing
VL  - 53
IS  - 3
SP  - 85
EP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_vinar_3526
ER  - 

@article{
author = "Šećerov, Bojana Lj. and Bačić, Goran",
year = "2008",
abstract = "Dichromate and ethanol-chlorobenzene dosimeters were studied in conditions of annual temperature changes during process control at the Radiation Unit of the Vinca Institute. Measurements were performed in February (10-14 degrees C) and August (22-35 degrees C) for the dose range 10-50 kGy. The difference between measurements using these dosimeters is in agreement with the previous laboratory studies of temperature effect on the dose response of a dichromate dosimeter. The absorbed doses measured by these two dosimeters are in good agreement and the difference is within a limit of 3% for the studied dose range. The uncertainties of dose measurements using dichromate dosimeter arising from irradiation during annual temperature changes appear to be well within acceptable limits indicating that this dosimeter can be used as a routine dosimeter.",
journal = "Nukleonika",
title = "Comparison of dichromate and ethanol-chlorobenzene dosimeters in high dose radiation processing",
volume = "53",
number = "3",
pages = "85-87",
url = "https://hdl.handle.net/21.15107/rcub_vinar_3526"
}

Šećerov, B. Lj.,& Bačić, G.. (2008). Comparison of dichromate and ethanol-chlorobenzene dosimeters in high dose radiation processing. in Nukleonika, 53(3), 85-87.
https://hdl.handle.net/21.15107/rcub_vinar_3526

Šećerov BL, Bačić G. Comparison of dichromate and ethanol-chlorobenzene dosimeters in high dose radiation processing. in Nukleonika. 2008;53(3):85-87.
https://hdl.handle.net/21.15107/rcub_vinar_3526 .

Šećerov, Bojana Lj., Bačić, Goran, "Comparison of dichromate and ethanol-chlorobenzene dosimeters in high dose radiation processing" in Nukleonika, 53, no. 3 (2008):85-87,
https://hdl.handle.net/21.15107/rcub_vinar_3526 .

TY  - JOUR
AU  - Dragović, Snežana D.
AU  - Onjia, Antonije E.
AU  - Dragović, Ranko M.
AU  - Bačić, Goran
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3199
AB  - Mosses and lichens have an important role in biomonitoring. The objective of this study is to develop a neural network model to classify these plants according to geographical origin. A three-layer feed-forward neural network was used. The activities of radionuclides (Ra-226, U-238, U-235, K-40, Th-232, Cs-134, Cs-137 and Be-7) detected in plant samples by gamma-ray spectrometry were used as inputs for neural network. Five different training algorithms with different number of samples in training sets were tested and compared, in order to find the one with the minimum root mean square error. The best predictive power for the classification of plants from 12 regions was achieved using a network with 5 hidden layer nodes and 3,000 training epochs, using the online back-propagation randomized training algorithm. Implementation of this model to experimental data resulted in satisfactory classification of moss and lichen samples in terms of their geographical origin. The average classification rate obtained in this study was (90.7 +/- 4.8)%.
T2  - Environmental Monitoring and Assessment
T1  - Implementation of neural networks for classification of moss and lichen samples on the basis of gamma-ray spectrometric analysis
VL  - 130
IS  - 1-3
SP  - 245
EP  - 253
DO  - 10.1007/s10661-006-9393-4
ER  - 

@article{
author = "Dragović, Snežana D. and Onjia, Antonije E. and Dragović, Ranko M. and Bačić, Goran",
year = "2007",
abstract = "Mosses and lichens have an important role in biomonitoring. The objective of this study is to develop a neural network model to classify these plants according to geographical origin. A three-layer feed-forward neural network was used. The activities of radionuclides (Ra-226, U-238, U-235, K-40, Th-232, Cs-134, Cs-137 and Be-7) detected in plant samples by gamma-ray spectrometry were used as inputs for neural network. Five different training algorithms with different number of samples in training sets were tested and compared, in order to find the one with the minimum root mean square error. The best predictive power for the classification of plants from 12 regions was achieved using a network with 5 hidden layer nodes and 3,000 training epochs, using the online back-propagation randomized training algorithm. Implementation of this model to experimental data resulted in satisfactory classification of moss and lichen samples in terms of their geographical origin. The average classification rate obtained in this study was (90.7 +/- 4.8)%.",
journal = "Environmental Monitoring and Assessment",
title = "Implementation of neural networks for classification of moss and lichen samples on the basis of gamma-ray spectrometric analysis",
volume = "130",
number = "1-3",
pages = "245-253",
doi = "10.1007/s10661-006-9393-4"
}

Dragović, S. D., Onjia, A. E., Dragović, R. M.,& Bačić, G.. (2007). Implementation of neural networks for classification of moss and lichen samples on the basis of gamma-ray spectrometric analysis. in Environmental Monitoring and Assessment, 130(1-3), 245-253.
https://doi.org/10.1007/s10661-006-9393-4

Dragović SD, Onjia AE, Dragović RM, Bačić G. Implementation of neural networks for classification of moss and lichen samples on the basis of gamma-ray spectrometric analysis. in Environmental Monitoring and Assessment. 2007;130(1-3):245-253.
doi:10.1007/s10661-006-9393-4 .

Dragović, Snežana D., Onjia, Antonije E., Dragović, Ranko M., Bačić, Goran, "Implementation of neural networks for classification of moss and lichen samples on the basis of gamma-ray spectrometric analysis" in Environmental Monitoring and Assessment, 130, no. 1-3 (2007):245-253,
https://doi.org/10.1007/s10661-006-9393-4 . .

TY  - JOUR
AU  - Dragović, Snežana D.
AU  - Janković Mandić, Ljiljana
AU  - Onjia, Antonije E.
AU  - Bačić, Goran
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3030
AB  - The specific activities of primordial radionuclides in soil samples from 21 different locations in Serbia and Montenegro were determined by gamma-ray spectrometry. The results obtained were compared with those from other studies conducted worldwide. Concentrations of radionuclides in soils analyzed in this study ranged from 1.28 to 4.80 ppm for uranium, from 5.26 to 19.0 ppm for thorium, and from 0.97% to 2.87% for potassium. The mean concentrations of U (2.76 ppm) and Th (10.4 ppm) are similar to the world average (2.64 and 11.1 ppm for U and Th, respectively), whereas the mean concentration of K (1.98%) is about 1.4 times higher than world average value (1.37%). (c) 2006 Elsevier Ltd. All rights reserved.
T2  - Radiation Measurements
T1  - Distribution of primordial radionuclides in surface soils from Serbia and Montenegro
VL  - 41
IS  - 5
SP  - 611
EP  - 616
DO  - 10.1016/j.radmeas.2006.03.007
ER  - 

@article{
author = "Dragović, Snežana D. and Janković Mandić, Ljiljana and Onjia, Antonije E. and Bačić, Goran",
year = "2006",
abstract = "The specific activities of primordial radionuclides in soil samples from 21 different locations in Serbia and Montenegro were determined by gamma-ray spectrometry. The results obtained were compared with those from other studies conducted worldwide. Concentrations of radionuclides in soils analyzed in this study ranged from 1.28 to 4.80 ppm for uranium, from 5.26 to 19.0 ppm for thorium, and from 0.97% to 2.87% for potassium. The mean concentrations of U (2.76 ppm) and Th (10.4 ppm) are similar to the world average (2.64 and 11.1 ppm for U and Th, respectively), whereas the mean concentration of K (1.98%) is about 1.4 times higher than world average value (1.37%). (c) 2006 Elsevier Ltd. All rights reserved.",
journal = "Radiation Measurements",
title = "Distribution of primordial radionuclides in surface soils from Serbia and Montenegro",
volume = "41",
number = "5",
pages = "611-616",
doi = "10.1016/j.radmeas.2006.03.007"
}

Dragović, S. D., Janković Mandić, L., Onjia, A. E.,& Bačić, G.. (2006). Distribution of primordial radionuclides in surface soils from Serbia and Montenegro. in Radiation Measurements, 41(5), 611-616.
https://doi.org/10.1016/j.radmeas.2006.03.007

Dragović SD, Janković Mandić L, Onjia AE, Bačić G. Distribution of primordial radionuclides in surface soils from Serbia and Montenegro. in Radiation Measurements. 2006;41(5):611-616.
doi:10.1016/j.radmeas.2006.03.007 .

Dragović, Snežana D., Janković Mandić, Ljiljana, Onjia, Antonije E., Bačić, Goran, "Distribution of primordial radionuclides in surface soils from Serbia and Montenegro" in Radiation Measurements, 41, no. 5 (2006):611-616,
https://doi.org/10.1016/j.radmeas.2006.03.007 . .

TY  - CONF
AU  - Šećerov, Bojana Lj.
AU  - Daković, Marko
AU  - Sarić, M.
AU  - Bačić, Goran
AU  - Borojević, Nenad
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9445
AB  - The goal of this study is to compare the sensitometric curves for HS model of GafChromic film using different dose read-out systems. Two commercial densitometers using fluorescent light source were tested and compared with results obtained using spectrophotometry. It was found that sublinear response of densitometers is due to the polychromaticity of emitted light and that response curve can be predicted by analysing absorption spectra of the film.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
T1  - DOSIMETRY USING HS GafChromic FILMS The influence of readout light on sensitivity of dosimetry
SP  - 463
EP  - 465
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9445
ER  - 

@conference{
author = "Šećerov, Bojana Lj. and Daković, Marko and Sarić, M. and Bačić, Goran and Borojević, Nenad",
year = "2006",
abstract = "The goal of this study is to compare the sensitometric curves for HS model of GafChromic film using different dose read-out systems. Two commercial densitometers using fluorescent light source were tested and compared with results obtained using spectrophotometry. It was found that sublinear response of densitometers is due to the polychromaticity of emitted light and that response curve can be predicted by analysing absorption spectra of the film.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry",
title = "DOSIMETRY USING HS GafChromic FILMS The influence of readout light on sensitivity of dosimetry",
pages = "463-465",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9445"
}

Šećerov, B. Lj., Daković, M., Sarić, M., Bačić, G.,& Borojević, N.. (2006). DOSIMETRY USING HS GafChromic FILMS The influence of readout light on sensitivity of dosimetry. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
Society of Physical Chemists of Serbia., 463-465.
https://hdl.handle.net/21.15107/rcub_vinar_9445

Šećerov BL, Daković M, Sarić M, Bačić G, Borojević N. DOSIMETRY USING HS GafChromic FILMS The influence of readout light on sensitivity of dosimetry. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry. 2006;:463-465.
https://hdl.handle.net/21.15107/rcub_vinar_9445 .

Šećerov, Bojana Lj., Daković, Marko, Sarić, M., Bačić, Goran, Borojević, Nenad, "DOSIMETRY USING HS GafChromic FILMS The influence of readout light on sensitivity of dosimetry" in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry (2006):463-465,
https://hdl.handle.net/21.15107/rcub_vinar_9445 .

TY  - JOUR
AU  - Dragović, Snežana D.
AU  - Onjia, Antonije E.
AU  - Stanković, Srboljub
AU  - Aničin, Ivan V.
AU  - Bačić, Goran
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2875
AB  - An artificial neural network (ANN) model for the prediction of measuring uncertainties in gamma-ray spectrometry was developed and optimized. A three-layer feed-forward ANN with back-propagation learning algorithm was used to model uncertainties of measurement of activity levels of eight radionuclides (Ra-226, U-238, U-235, K-40, Th-232, Cs-134, Cs-137 and Be-7) in soil samples as a function of measurement time. It was shown that the neural network provides useful data even from small experimental databases. The performance of the optimized neural network was found to be very good, with correlation coefficients (R-2) between measured and predicted uncertainties ranging from 0.9050 to 0.9915. The correlation coefficients did not significantly deteriorate when the network was tested on samples with greatly different uranium-to-thorium (U-238/Th-232) ratios. The differences between measured and predicted uncertainties were not influenced by the absolute values of uncertainties of measured radionuclide activities. Once the ANN is trained, it could be employed in analyzing soil samples regardless of the U-238/Th-232 ratio. It was concluded that a considerable saving in time could be obtained using the trained neural network model for predicting the measurement times needed to attain the desired statistical accuracy. (c) 2004 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Artificial neural network modelling of uncertainty in gamma-ray spectrometry
VL  - 540
IS  - 2-3
SP  - 455
EP  - 463
DO  - 10.1016/j.nima.2004.11.045
ER  - 

@article{
author = "Dragović, Snežana D. and Onjia, Antonije E. and Stanković, Srboljub and Aničin, Ivan V. and Bačić, Goran",
year = "2005",
abstract = "An artificial neural network (ANN) model for the prediction of measuring uncertainties in gamma-ray spectrometry was developed and optimized. A three-layer feed-forward ANN with back-propagation learning algorithm was used to model uncertainties of measurement of activity levels of eight radionuclides (Ra-226, U-238, U-235, K-40, Th-232, Cs-134, Cs-137 and Be-7) in soil samples as a function of measurement time. It was shown that the neural network provides useful data even from small experimental databases. The performance of the optimized neural network was found to be very good, with correlation coefficients (R-2) between measured and predicted uncertainties ranging from 0.9050 to 0.9915. The correlation coefficients did not significantly deteriorate when the network was tested on samples with greatly different uranium-to-thorium (U-238/Th-232) ratios. The differences between measured and predicted uncertainties were not influenced by the absolute values of uncertainties of measured radionuclide activities. Once the ANN is trained, it could be employed in analyzing soil samples regardless of the U-238/Th-232 ratio. It was concluded that a considerable saving in time could be obtained using the trained neural network model for predicting the measurement times needed to attain the desired statistical accuracy. (c) 2004 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Artificial neural network modelling of uncertainty in gamma-ray spectrometry",
volume = "540",
number = "2-3",
pages = "455-463",
doi = "10.1016/j.nima.2004.11.045"
}

Dragović, S. D., Onjia, A. E., Stanković, S., Aničin, I. V.,& Bačić, G.. (2005). Artificial neural network modelling of uncertainty in gamma-ray spectrometry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 540(2-3), 455-463.
https://doi.org/10.1016/j.nima.2004.11.045

Dragović SD, Onjia AE, Stanković S, Aničin IV, Bačić G. Artificial neural network modelling of uncertainty in gamma-ray spectrometry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2005;540(2-3):455-463.
doi:10.1016/j.nima.2004.11.045 .

Dragović, Snežana D., Onjia, Antonije E., Stanković, Srboljub, Aničin, Ivan V., Bačić, Goran, "Artificial neural network modelling of uncertainty in gamma-ray spectrometry" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 540, no. 2-3 (2005):455-463,
https://doi.org/10.1016/j.nima.2004.11.045 . .

TY  - JOUR
AU  - Dragović, Snežana D.
AU  - Nedić, Olgica
AU  - Stanković, Slobodanka
AU  - Bačić, Goran G.
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11161
AB  - The aim of this work was (i) to determine the activity levels of 137Cs in mosses from highland ecosystems of Serbia and Montenegro, (ii) to find out if radiocesium is associated with essential biomacromolecules, and (iii) to investigate 137Cs distribution among intracellular compartments. It was found that biomolecules of mosses do not bind significant amounts of radiocesium (2.3–3.3% of the absorbed 137Cs), a behavior that was independent of the moss species. Cellular fractionation of mosses showed that membranes are the primary 137Cs-binding sites at the cellular level. They contained 26.1–43.1% of the initial radiocesium activity. It seems that 137Cs-binding molecules in different mosses are of similar chemical nature, and their distribution between various cellular compartments is not species specific.
T2  - Journal of Environmental Radioactivity
T1  - Radiocesium accumulation in mosses from highlands of Serbia and Montenegro: chemical and physiological aspects
VL  - 77
IS  - 3
SP  - 381
EP  - 388
DO  - 10.1016/j.jenvrad.2004.04.007
ER  - 

@article{
author = "Dragović, Snežana D. and Nedić, Olgica and Stanković, Slobodanka and Bačić, Goran G.",
year = "2004",
abstract = "The aim of this work was (i) to determine the activity levels of 137Cs in mosses from highland ecosystems of Serbia and Montenegro, (ii) to find out if radiocesium is associated with essential biomacromolecules, and (iii) to investigate 137Cs distribution among intracellular compartments. It was found that biomolecules of mosses do not bind significant amounts of radiocesium (2.3–3.3% of the absorbed 137Cs), a behavior that was independent of the moss species. Cellular fractionation of mosses showed that membranes are the primary 137Cs-binding sites at the cellular level. They contained 26.1–43.1% of the initial radiocesium activity. It seems that 137Cs-binding molecules in different mosses are of similar chemical nature, and their distribution between various cellular compartments is not species specific.",
journal = "Journal of Environmental Radioactivity",
title = "Radiocesium accumulation in mosses from highlands of Serbia and Montenegro: chemical and physiological aspects",
volume = "77",
number = "3",
pages = "381-388",
doi = "10.1016/j.jenvrad.2004.04.007"
}

Dragović, S. D., Nedić, O., Stanković, S.,& Bačić, G. G.. (2004). Radiocesium accumulation in mosses from highlands of Serbia and Montenegro: chemical and physiological aspects. in Journal of Environmental Radioactivity, 77(3), 381-388.
https://doi.org/10.1016/j.jenvrad.2004.04.007

Dragović SD, Nedić O, Stanković S, Bačić GG. Radiocesium accumulation in mosses from highlands of Serbia and Montenegro: chemical and physiological aspects. in Journal of Environmental Radioactivity. 2004;77(3):381-388.
doi:10.1016/j.jenvrad.2004.04.007 .

Dragović, Snežana D., Nedić, Olgica, Stanković, Slobodanka, Bačić, Goran G., "Radiocesium accumulation in mosses from highlands of Serbia and Montenegro: chemical and physiological aspects" in Journal of Environmental Radioactivity, 77, no. 3 (2004):381-388,
https://doi.org/10.1016/j.jenvrad.2004.04.007 . .