TY  - JOUR
AU  - Ćirić, Miloš
AU  - Krizmanić, Jelena
AU  - Dojčinović, Biljana
AU  - Gavrilović, Bojan
AU  - Marinković, Dalibor
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4927
AB  - Alkaline saline ponds and lakes are habitats with unique biodiversity. The green alga of the genus Botryococcus was accidentally discovered during a micro-algal survey of these habitats in Serbia. Species B. terribilis was found and identified for the first time in Serbia in the small sandpit lake of the Rusanda Nature Park. The first sampling was incomplete due to the unknown origin of the orange-red surface scum. After the identity of the species had been confirmed, three additional samplings were conducted aiming to collect phytoplankton and water samples for physical and chemical analyses. Major anions and cations were analysed in order to characterize the chemical type of sandpit lake, as well as nutrient content. Sandpit lake is an alkaline water body that belongs to sodium bicarbonate chemical type. Morphometric analysis of B. terribilis was performed using light and transmission electron microscopy. B. terribilis was found to be numerous in the phytoplankton community in late autumn and winter. Species from the genus Botryococcus are known as a rich source of different lipids and this discovery can be the first step in the further biotechnological application of this species in sustainable biofuel production.
PB  - Novi sad : Matica Srpska
T2  - Matica Srpska Journal for Natural Sciences / Zbornik Matice srpske za prirodne nauke
T1  - Occurence of Botryococcus terribilis Komárek & Marvan in the small sand pit lake – first report from Serbia
VL  - 57
IS  - 140
SP  - 45
DO  - 10.2298/ZMSPN2140045C
ER  - 

@article{
author = "Ćirić, Miloš and Krizmanić, Jelena and Dojčinović, Biljana and Gavrilović, Bojan and Marinković, Dalibor",
year = "2021",
abstract = "Alkaline saline ponds and lakes are habitats with unique biodiversity. The green alga of the genus Botryococcus was accidentally discovered during a micro-algal survey of these habitats in Serbia. Species B. terribilis was found and identified for the first time in Serbia in the small sandpit lake of the Rusanda Nature Park. The first sampling was incomplete due to the unknown origin of the orange-red surface scum. After the identity of the species had been confirmed, three additional samplings were conducted aiming to collect phytoplankton and water samples for physical and chemical analyses. Major anions and cations were analysed in order to characterize the chemical type of sandpit lake, as well as nutrient content. Sandpit lake is an alkaline water body that belongs to sodium bicarbonate chemical type. Morphometric analysis of B. terribilis was performed using light and transmission electron microscopy. B. terribilis was found to be numerous in the phytoplankton community in late autumn and winter. Species from the genus Botryococcus are known as a rich source of different lipids and this discovery can be the first step in the further biotechnological application of this species in sustainable biofuel production.",
publisher = "Novi sad : Matica Srpska",
journal = "Matica Srpska Journal for Natural Sciences / Zbornik Matice srpske za prirodne nauke",
title = "Occurence of Botryococcus terribilis Komárek & Marvan in the small sand pit lake – first report from Serbia",
volume = "57",
number = "140",
pages = "45",
doi = "10.2298/ZMSPN2140045C"
}

Ćirić, M., Krizmanić, J., Dojčinović, B., Gavrilović, B.,& Marinković, D.. (2021). Occurence of Botryococcus terribilis Komárek & Marvan in the small sand pit lake – first report from Serbia. in Matica Srpska Journal for Natural Sciences / Zbornik Matice srpske za prirodne nauke
Novi sad : Matica Srpska., 57(140), 45.
https://doi.org/10.2298/ZMSPN2140045C

Ćirić M, Krizmanić J, Dojčinović B, Gavrilović B, Marinković D. Occurence of Botryococcus terribilis Komárek & Marvan in the small sand pit lake – first report from Serbia. in Matica Srpska Journal for Natural Sciences / Zbornik Matice srpske za prirodne nauke. 2021;57(140):45.
doi:10.2298/ZMSPN2140045C .

Ćirić, Miloš, Krizmanić, Jelena, Dojčinović, Biljana, Gavrilović, Bojan, Marinković, Dalibor, "Occurence of Botryococcus terribilis Komárek & Marvan in the small sand pit lake – first report from Serbia" in Matica Srpska Journal for Natural Sciences / Zbornik Matice srpske za prirodne nauke, 57, no. 140 (2021):45,
https://doi.org/10.2298/ZMSPN2140045C . .

TY  - JOUR
AU  - Đorđević, Dragana
AU  - Sakan, Sanja
AU  - Trifunović, Snežana
AU  - Škrivanj, Sandra
AU  - Finger, David Christian
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4928
AB  - In this work, we present the results of element content in river sediments and soil of the Rangárvellir river in southern Iceland as well as in the volcano ash from the Eyjafjallajökull eruption in 2010. Severe natural catastrophes have devastating impact on the environment. We selected the Rangárvellir area located in the vicinity of Mt Hekla, Iceland’s most active volcano, for our study. This study site is ideal to investigate wind and water erosion and sediment transport processes of two main glaciers rivers: the Eystri-Rangá and the Ytri-Rangá and the Hroarslækur River. Sediments of these rivers consist of volcano materials, ash and lava. In order to assess the sediment dynamics, we collected sediment, soil and volcanic ash. The fractioning of the elements was carried out using sequential extractions. The distribution of Si indicates that the sediments originate from the same geochemical basis. Li and partly B exist in the first phase of volcanic ash and river sediments but not in the mobile phases of soils. In the mobile phase of volcanic ash, P was found but it did not exist in the first phase of soil and sediments. These results suggest the different chemical fingerprints in the water sediments and surrounding soil.
PB  - MDPI
T2  - Water
T1  - Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential
VL  - 13
IS  - 14
SP  - 1928
DO  - 10.3390/w13141928
ER  - 

@article{
author = "Đorđević, Dragana and Sakan, Sanja and Trifunović, Snežana and Škrivanj, Sandra and Finger, David Christian",
year = "2021",
abstract = "In this work, we present the results of element content in river sediments and soil of the Rangárvellir river in southern Iceland as well as in the volcano ash from the Eyjafjallajökull eruption in 2010. Severe natural catastrophes have devastating impact on the environment. We selected the Rangárvellir area located in the vicinity of Mt Hekla, Iceland’s most active volcano, for our study. This study site is ideal to investigate wind and water erosion and sediment transport processes of two main glaciers rivers: the Eystri-Rangá and the Ytri-Rangá and the Hroarslækur River. Sediments of these rivers consist of volcano materials, ash and lava. In order to assess the sediment dynamics, we collected sediment, soil and volcanic ash. The fractioning of the elements was carried out using sequential extractions. The distribution of Si indicates that the sediments originate from the same geochemical basis. Li and partly B exist in the first phase of volcanic ash and river sediments but not in the mobile phases of soils. In the mobile phase of volcanic ash, P was found but it did not exist in the first phase of soil and sediments. These results suggest the different chemical fingerprints in the water sediments and surrounding soil.",
publisher = "MDPI",
journal = "Water",
title = "Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential",
volume = "13",
number = "14",
pages = "1928",
doi = "10.3390/w13141928"
}

Đorđević, D., Sakan, S., Trifunović, S., Škrivanj, S.,& Finger, D. C.. (2021). Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential. in Water
MDPI., 13(14), 1928.
https://doi.org/10.3390/w13141928

Đorđević D, Sakan S, Trifunović S, Škrivanj S, Finger DC. Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential. in Water. 2021;13(14):1928.
doi:10.3390/w13141928 .

Đorđević, Dragana, Sakan, Sanja, Trifunović, Snežana, Škrivanj, Sandra, Finger, David Christian, "Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential" in Water, 13, no. 14 (2021):1928,
https://doi.org/10.3390/w13141928 . .

TY  - JOUR
AU  - Poznanović, Spahić M.M.
AU  - Sakan, Sanja
AU  - Glavaš-Trbić, B.M.
AU  - Tančić, Pavle
AU  - Škrivanj, Sandra
AU  - Kovačević, J.R.
AU  - Manojlović, Dragan
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2384
AB  - This study reports the contents and sources of chromium, nickel and cobalt, as well as Al, Ca, Mg, K, Fe and Mn in Vojvodina regions Srem and Central Banat area soil samples. Different methods were applied to identify the sources of the studied elements and to classify the latter as geogenic and/or anthropogenic: modified Tessier sequential extraction, calculation ratio of E/Al, XRPD, correlations and cluster analysis. The sampling methodology was according to the GEMAS project. The results show that increasing content of chromium, cobalt and nickel detected in studied soils can be explained by a distribution pattern and the presence of ultramafic and mafic parent rocks, as well as by significant anthropogenic pollution, mainly originating from the industry at some localities. The statistically significant difference between the content of Cr and Ni in soils of Srem and C. Banat is observed. The content of the studied elements is higher in soils of Srem. The normalization to Al indicating a presence of the anthropogenic sources which my significantly affect the content of Cr and Ni in the soils from Beočin, Ruma and Stara Pazova. There is no shown influence of eventual agrochemicals application on the Cr, Ni and Co content.
PB  - Taylor and Francis Inc.
T2  - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental En
T1  - Natural and anthropogenic sources of chromium, nickel and cobalt in soils impacted by agricultural and industrial activity (Vojvodina, Serbia)
VL  - 54
IS  - 3
SP  - 219
EP  - 230
DO  - 10.1080/10934529.2018.1544802
ER  - 

@article{
author = "Poznanović, Spahić M.M. and Sakan, Sanja and Glavaš-Trbić, B.M. and Tančić, Pavle and Škrivanj, Sandra and Kovačević, J.R. and Manojlović, Dragan",
year = "2019",
abstract = "This study reports the contents and sources of chromium, nickel and cobalt, as well as Al, Ca, Mg, K, Fe and Mn in Vojvodina regions Srem and Central Banat area soil samples. Different methods were applied to identify the sources of the studied elements and to classify the latter as geogenic and/or anthropogenic: modified Tessier sequential extraction, calculation ratio of E/Al, XRPD, correlations and cluster analysis. The sampling methodology was according to the GEMAS project. The results show that increasing content of chromium, cobalt and nickel detected in studied soils can be explained by a distribution pattern and the presence of ultramafic and mafic parent rocks, as well as by significant anthropogenic pollution, mainly originating from the industry at some localities. The statistically significant difference between the content of Cr and Ni in soils of Srem and C. Banat is observed. The content of the studied elements is higher in soils of Srem. The normalization to Al indicating a presence of the anthropogenic sources which my significantly affect the content of Cr and Ni in the soils from Beočin, Ruma and Stara Pazova. There is no shown influence of eventual agrochemicals application on the Cr, Ni and Co content.",
publisher = "Taylor and Francis Inc.",
journal = "Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental En",
title = "Natural and anthropogenic sources of chromium, nickel and cobalt in soils impacted by agricultural and industrial activity (Vojvodina, Serbia)",
volume = "54",
number = "3",
pages = "219-230",
doi = "10.1080/10934529.2018.1544802"
}

Poznanović, S. M.M., Sakan, S., Glavaš-Trbić, B.M., Tančić, P., Škrivanj, S., Kovačević, J.R.,& Manojlović, D.. (2019). Natural and anthropogenic sources of chromium, nickel and cobalt in soils impacted by agricultural and industrial activity (Vojvodina, Serbia). in Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental En
Taylor and Francis Inc.., 54(3), 219-230.
https://doi.org/10.1080/10934529.2018.1544802

Poznanović SM, Sakan S, Glavaš-Trbić B, Tančić P, Škrivanj S, Kovačević J, Manojlović D. Natural and anthropogenic sources of chromium, nickel and cobalt in soils impacted by agricultural and industrial activity (Vojvodina, Serbia). in Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental En. 2019;54(3):219-230.
doi:10.1080/10934529.2018.1544802 .

Poznanović, Spahić M.M., Sakan, Sanja, Glavaš-Trbić, B.M., Tančić, Pavle, Škrivanj, Sandra, Kovačević, J.R., Manojlović, Dragan, "Natural and anthropogenic sources of chromium, nickel and cobalt in soils impacted by agricultural and industrial activity (Vojvodina, Serbia)" in Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental En, 54, no. 3 (2019):219-230,
https://doi.org/10.1080/10934529.2018.1544802 . .

TY  - JOUR
AU  - Poznanović-Spahić, Maja
AU  - Manojlović, Dragan
AU  - Tančić, Pavle
AU  - Cvetković, Željko
AU  - Nikić, Zoran
AU  - Kovačević, Renata
AU  - Sakan, Sanja
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5897
AB  - This study reports the contents and sources of Cu, Hg, Cr, Ni, Co, Zn, Pb, Cd, As, and B pollution in soil samples from Srem in the province of Vojvodina (Republic of Serbia). They are collected in the vicinity of local industrial facilities. The main objective of this study is evaluating the impact of the industrial facilities on the eventual contamination of soils used mostly for agricultural manufacturing. This paper describes the implementation of the combination of methods to estimate the ecological status and determine potential ecological risk. This study applies sequential extraction, pollution indices, comparison with the guidelines, and statistical analysis. Other soil parameters, such as organic matter content, pH, and clay content were measured to evaluate their influence on the trace element content. The investigated soil samples exhibited the raised contents of Ni, Hg, and Cu. Elevated contents of toxic elements observed in localities accommodated within an impact zone affected by industrial complexes, indicating a correlation between the contamination of surrounding soil and potential impact on plants. The most mobile elements are Hg, Cd, and B, while Cr is the least mobile and potential least bioavailable. The results indicate Cr and Ni content increase marking the presence of bedrock, notably in the area of underlying ultramafic rocks and the surface zones influenced by diluvial-proluvial and alluvial processes. The second source of Cr and Ni in the soils of Srem is industrial activities such as leather, cement industry, as well as the metal processing factory.
PB  - Springer
T2  - Environmental Monitoring and Assessment
T1  - Environmental impact of industrial and agricultural activities to the trace element content in soil of Srem (Serbia)
VL  - 191
IS  - 3
SP  - 133
DO  - 10.1007/s10661-019-7268-8
ER  - 

@article{
author = "Poznanović-Spahić, Maja and Manojlović, Dragan and Tančić, Pavle and Cvetković, Željko and Nikić, Zoran and Kovačević, Renata and Sakan, Sanja",
year = "2019",
abstract = "This study reports the contents and sources of Cu, Hg, Cr, Ni, Co, Zn, Pb, Cd, As, and B pollution in soil samples from Srem in the province of Vojvodina (Republic of Serbia). They are collected in the vicinity of local industrial facilities. The main objective of this study is evaluating the impact of the industrial facilities on the eventual contamination of soils used mostly for agricultural manufacturing. This paper describes the implementation of the combination of methods to estimate the ecological status and determine potential ecological risk. This study applies sequential extraction, pollution indices, comparison with the guidelines, and statistical analysis. Other soil parameters, such as organic matter content, pH, and clay content were measured to evaluate their influence on the trace element content. The investigated soil samples exhibited the raised contents of Ni, Hg, and Cu. Elevated contents of toxic elements observed in localities accommodated within an impact zone affected by industrial complexes, indicating a correlation between the contamination of surrounding soil and potential impact on plants. The most mobile elements are Hg, Cd, and B, while Cr is the least mobile and potential least bioavailable. The results indicate Cr and Ni content increase marking the presence of bedrock, notably in the area of underlying ultramafic rocks and the surface zones influenced by diluvial-proluvial and alluvial processes. The second source of Cr and Ni in the soils of Srem is industrial activities such as leather, cement industry, as well as the metal processing factory.",
publisher = "Springer",
journal = "Environmental Monitoring and Assessment",
title = "Environmental impact of industrial and agricultural activities to the trace element content in soil of Srem (Serbia)",
volume = "191",
number = "3",
pages = "133",
doi = "10.1007/s10661-019-7268-8"
}

Poznanović-Spahić, M., Manojlović, D., Tančić, P., Cvetković, Ž., Nikić, Z., Kovačević, R.,& Sakan, S.. (2019). Environmental impact of industrial and agricultural activities to the trace element content in soil of Srem (Serbia). in Environmental Monitoring and Assessment
Springer., 191(3), 133.
https://doi.org/10.1007/s10661-019-7268-8

Poznanović-Spahić M, Manojlović D, Tančić P, Cvetković Ž, Nikić Z, Kovačević R, Sakan S. Environmental impact of industrial and agricultural activities to the trace element content in soil of Srem (Serbia). in Environmental Monitoring and Assessment. 2019;191(3):133.
doi:10.1007/s10661-019-7268-8 .

Poznanović-Spahić, Maja, Manojlović, Dragan, Tančić, Pavle, Cvetković, Željko, Nikić, Zoran, Kovačević, Renata, Sakan, Sanja, "Environmental impact of industrial and agricultural activities to the trace element content in soil of Srem (Serbia)" in Environmental Monitoring and Assessment, 191, no. 3 (2019):133,
https://doi.org/10.1007/s10661-019-7268-8 . .

TY  - JOUR
AU  - Pantović Spajić, Katarina
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Šoštarić, Tatjana
AU  - Lopičić, Zorica
AU  - Janićijević, Aleksandra
AU  - Stojanović, Ksenija
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7489
AB  - The purpose of this paper was to investigate the effectiveness of three different extraction agents for the extraction of 25 elements from sediment samples collected from 4 artificial lakes and 12 rivers in Serbia (33 samples in total). The extraction efficiency of the agents was evaluated by its ability to extract the highest quantity of the elements. For that purpose, three acids (1M HCl, 2M HNO3 and 0.43M CH3COOH) have been used. Inductively coupled plasma atomic emission spectrometry (ICP-OES) was used for quantitative determination of following elements: Al, As, B, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu, Fe, Hg, K, Li, Mg, Mn, Ni, Na, Pb, Sb, Se, Sr, V, and Zn. The extraction with 1M HCl has shown the best results for the majority of investigated elements (especially Sr, Mn and Ca). Antimony (Sb) was detected only after extraction with 0.43M CH3COOOH, while selenium (Se) could not be detected when 2M HNO3 was applied as extraction agents. The present study could be very useful for choosing a suitable method for specific elements and also can be helpful in the evaluation of the contaminants in freshwater sediments in Serbia. This might contribute to environmental risk assessment of the present elements.
T2  - Acta Periodica Technologica
T1  - Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia
VL  - 50
SP  - 189
EP  - 196
DO  - 10.2298/APT1950189P
ER  - 

@article{
author = "Pantović Spajić, Katarina and Sakan, Sanja and Đorđević, Dragana and Šoštarić, Tatjana and Lopičić, Zorica and Janićijević, Aleksandra and Stojanović, Ksenija",
year = "2019",
abstract = "The purpose of this paper was to investigate the effectiveness of three different extraction agents for the extraction of 25 elements from sediment samples collected from 4 artificial lakes and 12 rivers in Serbia (33 samples in total). The extraction efficiency of the agents was evaluated by its ability to extract the highest quantity of the elements. For that purpose, three acids (1M HCl, 2M HNO3 and 0.43M CH3COOH) have been used. Inductively coupled plasma atomic emission spectrometry (ICP-OES) was used for quantitative determination of following elements: Al, As, B, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu, Fe, Hg, K, Li, Mg, Mn, Ni, Na, Pb, Sb, Se, Sr, V, and Zn. The extraction with 1M HCl has shown the best results for the majority of investigated elements (especially Sr, Mn and Ca). Antimony (Sb) was detected only after extraction with 0.43M CH3COOOH, while selenium (Se) could not be detected when 2M HNO3 was applied as extraction agents. The present study could be very useful for choosing a suitable method for specific elements and also can be helpful in the evaluation of the contaminants in freshwater sediments in Serbia. This might contribute to environmental risk assessment of the present elements.",
journal = "Acta Periodica Technologica",
title = "Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia",
volume = "50",
pages = "189-196",
doi = "10.2298/APT1950189P"
}

Pantović Spajić, K., Sakan, S., Đorđević, D., Šoštarić, T., Lopičić, Z., Janićijević, A.,& Stojanović, K.. (2019). Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia. in Acta Periodica Technologica, 50, 189-196.
https://doi.org/10.2298/APT1950189P

Pantović Spajić K, Sakan S, Đorđević D, Šoštarić T, Lopičić Z, Janićijević A, Stojanović K. Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia. in Acta Periodica Technologica. 2019;50:189-196.
doi:10.2298/APT1950189P .

Pantović Spajić, Katarina, Sakan, Sanja, Đorđević, Dragana, Šoštarić, Tatjana, Lopičić, Zorica, Janićijević, Aleksandra, Stojanović, Ksenija, "Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia" in Acta Periodica Technologica, 50 (2019):189-196,
https://doi.org/10.2298/APT1950189P . .

TY  - JOUR
AU  - Suručić, Ljiljana T.
AU  - Janjić, Goran
AU  - Rakić, Aleksandra
AU  - Nastasović, Aleksandra
AU  - Popović, Aleksandar R.
AU  - Milčić, Miloš
AU  - Onjia, Antonije E.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3255
AB  - With regard to the harmful effects of heavy metals on human health and the environment, the demand for synthesis and investigation of macromolecules with large capacity of harmful substances sorption is ever greater. Quantum-chemical methods may be applied in structural modeling, prediction, and characterization of such molecules and reactions. Sorption of metal ions (Cu2+, Cd2+, Co2+, and Ni2+) to triethylenetetramine-functionalized copolymer poly(GMA-co-EGDMA)-teta was successfully modeled by quantum chemical calculations, at the B3LYP//6–311++G**/lanl2dz level. Optimized structures of metal complexes were used for calculation of real binding energy of metal ion within the complex (ΔEr). Solvent and hydrolyzation effects were essential for obtaining the objective values. Solvent effect was included in ΔEr by using the total solvation energy for reaction of formation of tetaOH complex (ΔEs1, the first approach) or by using dehydration energy of free metal ion (ΔEs2, the second approach). Experimental results were confirmed in our theoretical analyses (using the second approach).
PB  - Springer
T2  - Journal of Molecular Modeling
T1  - Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution
VL  - 25
IS  - 6
SP  - 177
DO  - 10.1007/s00894-019-4053-0
ER  - 

@article{
author = "Suručić, Ljiljana T. and Janjić, Goran and Rakić, Aleksandra and Nastasović, Aleksandra and Popović, Aleksandar R. and Milčić, Miloš and Onjia, Antonije E.",
year = "2019",
abstract = "With regard to the harmful effects of heavy metals on human health and the environment, the demand for synthesis and investigation of macromolecules with large capacity of harmful substances sorption is ever greater. Quantum-chemical methods may be applied in structural modeling, prediction, and characterization of such molecules and reactions. Sorption of metal ions (Cu2+, Cd2+, Co2+, and Ni2+) to triethylenetetramine-functionalized copolymer poly(GMA-co-EGDMA)-teta was successfully modeled by quantum chemical calculations, at the B3LYP//6–311++G**/lanl2dz level. Optimized structures of metal complexes were used for calculation of real binding energy of metal ion within the complex (ΔEr). Solvent and hydrolyzation effects were essential for obtaining the objective values. Solvent effect was included in ΔEr by using the total solvation energy for reaction of formation of tetaOH complex (ΔEs1, the first approach) or by using dehydration energy of free metal ion (ΔEs2, the second approach). Experimental results were confirmed in our theoretical analyses (using the second approach).",
publisher = "Springer",
journal = "Journal of Molecular Modeling",
title = "Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution",
volume = "25",
number = "6",
pages = "177",
doi = "10.1007/s00894-019-4053-0"
}

Suručić, L. T., Janjić, G., Rakić, A., Nastasović, A., Popović, A. R., Milčić, M.,& Onjia, A. E.. (2019). Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution. in Journal of Molecular Modeling
Springer., 25(6), 177.
https://doi.org/10.1007/s00894-019-4053-0

Suručić LT, Janjić G, Rakić A, Nastasović A, Popović AR, Milčić M, Onjia AE. Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution. in Journal of Molecular Modeling. 2019;25(6):177.
doi:10.1007/s00894-019-4053-0 .

Suručić, Ljiljana T., Janjić, Goran, Rakić, Aleksandra, Nastasović, Aleksandra, Popović, Aleksandar R., Milčić, Miloš, Onjia, Antonije E., "Theoretical modeling of sorption of metal ions on amino-functionalized macroporous copolymer in aqueous solution" in Journal of Molecular Modeling, 25, no. 6 (2019):177,
https://doi.org/10.1007/s00894-019-4053-0 . .

TY  - CONF
AU  - Đorđević, Dragana
AU  - Popović, Aleksandar
AU  - Sakan, Sanja
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Relić, Dubravka
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6853
AB  - Still, now the main energy production in Serbia (70%) is from low-caloric lignite of Kolubara and Kostolac basins which contain harmful elements: As, Be, Co, Mo, Mn, Ni, Pb, Se, Sb, V, U, Th, Ra, Rn etc. Six Serbian CFPPs generate about 6,000,000 t/year of ash enriched by toxic elements which are being deposited on fertile arable land and emitted in ambient air. About 1600 hectares of fertile soil is permanently contaminated with toxic elements from ash disposals endangering surface and underground waters. An increased carcinogenic risk was observed due to arsenic in ambient air, contained in 
the respiratory particles of the finest fraction. CFPPs are identified as their emission sources. In recent years, small hydropower plants have been installed on last mountains clean rivers in Serbia based on decades old echnical projects and old water data, which do not include the climate change factors. Our research has shown the consequence on Vlasina River, making it the swamp quality water and enhanced erosion processes. 
Particularly dangerous in mountainous areas is of landslides and torrential floods induced by enormous precipitation due to climate change. Problems of the water supply of Vlasotince municipality are already evident. Serbia has many other possibilities for clean and low carbon energy production: 1) biogas production from biomass with which Serbia is globally one of the richest countries, 2) in summer period Serbia is country with Mediterranean climate and solar energy is easy to use, 3) Serbia is rich with underground geothermal waters that are not used for domestic and public heating, 4) energy production from methane from farms and waste disposal, 5) wind energy etc. 
The most important approach must be towards energy efficiency in the public and domestic sector and to prosumers concept. With this approach, Serbia does not need any CFPPs and especially small hydro power plants.
PB  - Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)
C3  - International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia
T1  - Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji
SP  - 1
EP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_cer_6853
ER  - 

@conference{
author = "Đorđević, Dragana and Popović, Aleksandar and Sakan, Sanja and Mihajlidi-Zelić, Aleksandra and Relić, Dubravka",
year = "2019",
abstract = "Still, now the main energy production in Serbia (70%) is from low-caloric lignite of Kolubara and Kostolac basins which contain harmful elements: As, Be, Co, Mo, Mn, Ni, Pb, Se, Sb, V, U, Th, Ra, Rn etc. Six Serbian CFPPs generate about 6,000,000 t/year of ash enriched by toxic elements which are being deposited on fertile arable land and emitted in ambient air. About 1600 hectares of fertile soil is permanently contaminated with toxic elements from ash disposals endangering surface and underground waters. An increased carcinogenic risk was observed due to arsenic in ambient air, contained in 
the respiratory particles of the finest fraction. CFPPs are identified as their emission sources. In recent years, small hydropower plants have been installed on last mountains clean rivers in Serbia based on decades old echnical projects and old water data, which do not include the climate change factors. Our research has shown the consequence on Vlasina River, making it the swamp quality water and enhanced erosion processes. 
Particularly dangerous in mountainous areas is of landslides and torrential floods induced by enormous precipitation due to climate change. Problems of the water supply of Vlasotince municipality are already evident. Serbia has many other possibilities for clean and low carbon energy production: 1) biogas production from biomass with which Serbia is globally one of the richest countries, 2) in summer period Serbia is country with Mediterranean climate and solar energy is easy to use, 3) Serbia is rich with underground geothermal waters that are not used for domestic and public heating, 4) energy production from methane from farms and waste disposal, 5) wind energy etc. 
The most important approach must be towards energy efficiency in the public and domestic sector and to prosumers concept. With this approach, Serbia does not need any CFPPs and especially small hydro power plants.",
publisher = "Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)",
journal = "International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia",
title = "Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji",
pages = "1-8",
url = "https://hdl.handle.net/21.15107/rcub_cer_6853"
}

Đorđević, D., Popović, A., Sakan, S., Mihajlidi-Zelić, A.,& Relić, D.. (2019). Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji. in International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia
Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)., 1-8.
https://hdl.handle.net/21.15107/rcub_cer_6853

Đorđević D, Popović A, Sakan S, Mihajlidi-Zelić A, Relić D. Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji. in International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia. 2019;:1-8.
https://hdl.handle.net/21.15107/rcub_cer_6853 .

Đorđević, Dragana, Popović, Aleksandar, Sakan, Sanja, Mihajlidi-Zelić, Aleksandra, Relić, Dubravka, "Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji" in International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia (2019):1-8,
https://hdl.handle.net/21.15107/rcub_cer_6853 .

TY  - CONF
AU  - Marković, Bojana
AU  - Stefanović, Ivan
AU  - Popović, Aleksandar R.
AU  - Ignjatović, Nenad
AU  - Nastasović, Aleksandra
PY  - 2019
UR  - http://dais.sanu.ac.rs/123456789/7007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3325
AB  - Recent advances in material technologies have resulted in the preparation of novel polymer/clay composites with improved thermal, mechanical, optoelectronic/ magnetic properties and increased biodegradability [1]. In this study, six samples of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) nanocomposites with organically-modified montmorillonite clay Cloisite 30B® (C30B), were prepared via suspension copolymerization. In order to obtain nanocomposites with fine spherical beads of regular shape and satisfying thermal stability the optimization of the synthesis conditions was performed. Firstly, the influence of the poly(N-vinyl pyrrolidone) (PVP) quantity in the aqueous phase was varied (1, 3 and 5 wt.%) at a constant stirring rate of 250 rpm and constant clay content C30B (10 wt.%). In the second phase of the optimization of the preparation, samples with a constant composition of the composite reaction mixture (5 wt.% PVP and 10 wt.% C30B) at a stirring rate of 250, 325 and 400 rpm, were prepared. According to the obtained results, it was concluded that the optimal conditions for preparation of these composites are 5 wt.% of PVP and 400 rpm. The prepared nanocomposites were characterized with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) in air. The structure of the prepared nanocomposites was confirmed with FTIR spectroscopy. According to the obtained SEM microphotographs the fine spherical beads, with desired size and homogeneous morphology, were prepared. Furthermore, SEM analysis was also showed that clay nanoparticles are homogeneously dispersed both inside surface and cross-section area. The incorporation of C30B clay increased the thermal stability of the prepared polymer/clay nanocomposites in comparison to the pure PGME copolymer.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Optimization of the preparation of novel polymer/clay nanocomposites
SP  - 114
EP  - 114
UR  - https://hdl.handle.net/21.15107/rcub_dais_7007
ER  - 

@conference{
author = "Marković, Bojana and Stefanović, Ivan and Popović, Aleksandar R. and Ignjatović, Nenad and Nastasović, Aleksandra",
year = "2019",
abstract = "Recent advances in material technologies have resulted in the preparation of novel polymer/clay composites with improved thermal, mechanical, optoelectronic/ magnetic properties and increased biodegradability [1]. In this study, six samples of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) nanocomposites with organically-modified montmorillonite clay Cloisite 30B® (C30B), were prepared via suspension copolymerization. In order to obtain nanocomposites with fine spherical beads of regular shape and satisfying thermal stability the optimization of the synthesis conditions was performed. Firstly, the influence of the poly(N-vinyl pyrrolidone) (PVP) quantity in the aqueous phase was varied (1, 3 and 5 wt.%) at a constant stirring rate of 250 rpm and constant clay content C30B (10 wt.%). In the second phase of the optimization of the preparation, samples with a constant composition of the composite reaction mixture (5 wt.% PVP and 10 wt.% C30B) at a stirring rate of 250, 325 and 400 rpm, were prepared. According to the obtained results, it was concluded that the optimal conditions for preparation of these composites are 5 wt.% of PVP and 400 rpm. The prepared nanocomposites were characterized with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) in air. The structure of the prepared nanocomposites was confirmed with FTIR spectroscopy. According to the obtained SEM microphotographs the fine spherical beads, with desired size and homogeneous morphology, were prepared. Furthermore, SEM analysis was also showed that clay nanoparticles are homogeneously dispersed both inside surface and cross-section area. The incorporation of C30B clay increased the thermal stability of the prepared polymer/clay nanocomposites in comparison to the pure PGME copolymer.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Optimization of the preparation of novel polymer/clay nanocomposites",
pages = "114-114",
url = "https://hdl.handle.net/21.15107/rcub_dais_7007"
}

Marković, B., Stefanović, I., Popović, A. R., Ignjatović, N.,& Nastasović, A.. (2019). Optimization of the preparation of novel polymer/clay nanocomposites. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 114-114.
https://hdl.handle.net/21.15107/rcub_dais_7007

Marković B, Stefanović I, Popović AR, Ignjatović N, Nastasović A. Optimization of the preparation of novel polymer/clay nanocomposites. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:114-114.
https://hdl.handle.net/21.15107/rcub_dais_7007 .

Marković, Bojana, Stefanović, Ivan, Popović, Aleksandar R., Ignjatović, Nenad, Nastasović, Aleksandra, "Optimization of the preparation of novel polymer/clay nanocomposites" in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):114-114,
https://hdl.handle.net/21.15107/rcub_dais_7007 .

TY  - JOUR
AU  - Sakan, Sanja
AU  - Sakan, Nenad
AU  - Popović, Aleksandar R.
AU  - Škrivanj, Sandra
AU  - Đorđević, Dragana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3107
AB  - The need for further research into potentially toxic elements in Serbian rivers led to an
investigation of distributions, sources, and ecological risks in a sample base of sediments from
15 rivers. The analyses were carried out through both experimental and theoretical methods.
Geochemical fractionation of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, As, V, and Zn in sediments was
studied using a sequential extraction procedure. Both a Håkanson risk index (RI) and a Monte Carlo
simulation (MCS) were used in order to estimate ecological risk, applying the probability distribution
of RI values instead of single-point calculations. In order to both further the development of the used
method and include additional processes, software for the simulations was developed instead of
using proprietary solutions. Metal fractionation showed high percentage recoveries of Cd, Cr, Co, Cu,
Fe, Ni, and V in residual fractions. The high content of Pb, Mn, and Zn in mobile fractions might
cause serious environmental concerns. In some localities, Cu and Cd could be problematic elements,
since their mobility was high. An environmental assessment based on the described criteria provided
risk levels varying from low to median (mainly contributed by Cd and Cu).
PB  - MDPI
T2  - Molecules
T1  - Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations
VL  - 24
IS  - 11
SP  - 2145
DO  - 10.3390/molecules24112145
ER  - 

@article{
author = "Sakan, Sanja and Sakan, Nenad and Popović, Aleksandar R. and Škrivanj, Sandra and Đorđević, Dragana",
year = "2019",
abstract = "The need for further research into potentially toxic elements in Serbian rivers led to an
investigation of distributions, sources, and ecological risks in a sample base of sediments from
15 rivers. The analyses were carried out through both experimental and theoretical methods.
Geochemical fractionation of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, As, V, and Zn in sediments was
studied using a sequential extraction procedure. Both a Håkanson risk index (RI) and a Monte Carlo
simulation (MCS) were used in order to estimate ecological risk, applying the probability distribution
of RI values instead of single-point calculations. In order to both further the development of the used
method and include additional processes, software for the simulations was developed instead of
using proprietary solutions. Metal fractionation showed high percentage recoveries of Cd, Cr, Co, Cu,
Fe, Ni, and V in residual fractions. The high content of Pb, Mn, and Zn in mobile fractions might
cause serious environmental concerns. In some localities, Cu and Cd could be problematic elements,
since their mobility was high. An environmental assessment based on the described criteria provided
risk levels varying from low to median (mainly contributed by Cd and Cu).",
publisher = "MDPI",
journal = "Molecules",
title = "Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations",
volume = "24",
number = "11",
pages = "2145",
doi = "10.3390/molecules24112145"
}

Sakan, S., Sakan, N., Popović, A. R., Škrivanj, S.,& Đorđević, D.. (2019). Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations. in Molecules
MDPI., 24(11), 2145.
https://doi.org/10.3390/molecules24112145

Sakan S, Sakan N, Popović AR, Škrivanj S, Đorđević D. Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations. in Molecules. 2019;24(11):2145.
doi:10.3390/molecules24112145 .

Sakan, Sanja, Sakan, Nenad, Popović, Aleksandar R., Škrivanj, Sandra, Đorđević, Dragana, "Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations" in Molecules, 24, no. 11 (2019):2145,
https://doi.org/10.3390/molecules24112145 . .

TY  - JOUR
AU  - Rožić, Ljiljana
AU  - Petrović, Srđan
AU  - Lončarević, Davor
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Stojadinović, Stevan
AU  - Jović, Vesna
AU  - Lamovec, Jelena
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2486
AB  - TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders
VL  - 45
IS  - 2
SP  - 2361
EP  - 2367
DO  - 10.1016/j.ceramint.2018.10.153
ER  - 

@article{
author = "Rožić, Ljiljana and Petrović, Srđan and Lončarević, Davor and Grbić, Boško and Radić, Nenad and Stojadinović, Stevan and Jović, Vesna and Lamovec, Jelena",
year = "2019",
abstract = "TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders",
volume = "45",
number = "2",
pages = "2361-2367",
doi = "10.1016/j.ceramint.2018.10.153"
}

Rožić, L., Petrović, S., Lončarević, D., Grbić, B., Radić, N., Stojadinović, S., Jović, V.,& Lamovec, J.. (2019). Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(2), 2361-2367.
https://doi.org/10.1016/j.ceramint.2018.10.153

Rožić L, Petrović S, Lončarević D, Grbić B, Radić N, Stojadinović S, Jović V, Lamovec J. Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International. 2019;45(2):2361-2367.
doi:10.1016/j.ceramint.2018.10.153 .

Rožić, Ljiljana, Petrović, Srđan, Lončarević, Davor, Grbić, Boško, Radić, Nenad, Stojadinović, Stevan, Jović, Vesna, Lamovec, Jelena, "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders" in Ceramics International, 45, no. 2 (2019):2361-2367,
https://doi.org/10.1016/j.ceramint.2018.10.153 . .

TY  - JOUR
AU  - Rožić, Ljiljana
AU  - Petrović, Srđan
AU  - Lončarević, Davor
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Stojadinović, Stevan
AU  - Jović, Vesna
AU  - Lamovec, Jelena
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2900
AB  - TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.
PB  - Oxford : Elsevier Sci Ltd.
T2  - Ceramics International
T1  - Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders
VL  - 45
IS  - 2
SP  - 2361
EP  - 2367
DO  - 10.1016/j.ceramint.2018.10.153
ER  - 

@article{
author = "Rožić, Ljiljana and Petrović, Srđan and Lončarević, Davor and Grbić, Boško and Radić, Nenad and Stojadinović, Stevan and Jović, Vesna and Lamovec, Jelena",
year = "2019",
abstract = "TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.",
publisher = "Oxford : Elsevier Sci Ltd.",
journal = "Ceramics International",
title = "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders",
volume = "45",
number = "2",
pages = "2361-2367",
doi = "10.1016/j.ceramint.2018.10.153"
}

Rožić, L., Petrović, S., Lončarević, D., Grbić, B., Radić, N., Stojadinović, S., Jović, V.,& Lamovec, J.. (2019). Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International
Oxford : Elsevier Sci Ltd.., 45(2), 2361-2367.
https://doi.org/10.1016/j.ceramint.2018.10.153

Rožić L, Petrović S, Lončarević D, Grbić B, Radić N, Stojadinović S, Jović V, Lamovec J. Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International. 2019;45(2):2361-2367.
doi:10.1016/j.ceramint.2018.10.153 .

Rožić, Ljiljana, Petrović, Srđan, Lončarević, Davor, Grbić, Boško, Radić, Nenad, Stojadinović, Stevan, Jović, Vesna, Lamovec, Jelena, "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders" in Ceramics International, 45, no. 2 (2019):2361-2367,
https://doi.org/10.1016/j.ceramint.2018.10.153 . .

TY  - JOUR
AU  - Ostojić, Bojana
AU  - Đorđević, Dragana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3899
AB  - The molecular properties of the environmental mutagens nitrofluoranthenes (NFs; 1-, 2-, 3-, 7- and 8-NF), such as (hyper)polarizability, dipole moment, molecular electrostatic potential (MEP), spectroscopic characteristics, magnetic index (NICS) and others, obtained by means of ab initio (MP2) and density functional theory (DFT) approaches have been correlated with the observed mutagenic activities. A very good linear correlation (Rav = 0.99) between average polarizability () and experimental mutagenic activities of NFs in different Salmonella typhimurium strains from two independent experimental studies (Vance and Levin, Environ. Mutagen. 6 (1984) 797 and Zielinska et al., Mutation Res. 206 (1988) 131) was established. Higher values of polarizability derivatives with respect to the νsNO+CN vibrational coordinate for 8-NF and 3-NF compared to 1-NF and 7-NF and, consequently, higher Raman activities in the spectra that are in correlation with mutagenic activities, implicate significant intermolecular interactions along this vibrational coordinate. The results indicate that the binding of NFs to enzymes is the main step in mutagenic pathway of these nitro derivatives.
AB  - Молекулске особине мутагена нитрофлуорантена (NF; 1-, 2-, 3-, 7- и 8-NF) као што су (хипер)поларизабилност, диполни момент, молекулски електростатички потенцијал (MEP), спектроскопске карактеристике, магнетни индекс (NICS) и др., добијене ab initio (MP2) и DFT приступом, корелисане су са мутагеним активностима ових изомера. Установљена је врло добра линерана корелација (Rav = 0,99) између средње поларизабилности () и експериментално одређених мутагених активности нитрофлуoрантена у различитим сојевима бактерије Salmonella typhimurium из две независне експерименталне студије (Vance and Levin, Environ. Mutagen. 6 (1984) 797 и Zielinska et al., Mutation Res. 206 (1988) 131). Веће вредности извода поларизабилности у односу на νsNO+CN вибрациону координату за 8-NF и 3-NF у поређењу са 1-NF и 7-NF и, следствено томе, веће вредности Раман активности у спектрима које су у корелацији са мутагеном активношћу, упућују на знатне молекулске интеракције дуж ове вибрационе координате. Резултати указују да је везивање изомера NF за активно место ензима главни корак у активацији мутагености код ових нитро деривата.
PB  - Serbia : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations
T1  - Uloga molekulskih osobina mononitrofluorantena u njihovoj mutagenoj aktivnosti :AB initio i DFT pristup
VL  - 84
IS  - 8
SP  - 861
EP  - 876
DO  - 10.2298/JSC190509045O
ER  - 

@article{
author = "Ostojić, Bojana and Đorđević, Dragana",
year = "2019",
abstract = "The molecular properties of the environmental mutagens nitrofluoranthenes (NFs; 1-, 2-, 3-, 7- and 8-NF), such as (hyper)polarizability, dipole moment, molecular electrostatic potential (MEP), spectroscopic characteristics, magnetic index (NICS) and others, obtained by means of ab initio (MP2) and density functional theory (DFT) approaches have been correlated with the observed mutagenic activities. A very good linear correlation (Rav = 0.99) between average polarizability () and experimental mutagenic activities of NFs in different Salmonella typhimurium strains from two independent experimental studies (Vance and Levin, Environ. Mutagen. 6 (1984) 797 and Zielinska et al., Mutation Res. 206 (1988) 131) was established. Higher values of polarizability derivatives with respect to the νsNO+CN vibrational coordinate for 8-NF and 3-NF compared to 1-NF and 7-NF and, consequently, higher Raman activities in the spectra that are in correlation with mutagenic activities, implicate significant intermolecular interactions along this vibrational coordinate. The results indicate that the binding of NFs to enzymes is the main step in mutagenic pathway of these nitro derivatives., Молекулске особине мутагена нитрофлуорантена (NF; 1-, 2-, 3-, 7- и 8-NF) као што су (хипер)поларизабилност, диполни момент, молекулски електростатички потенцијал (MEP), спектроскопске карактеристике, магнетни индекс (NICS) и др., добијене ab initio (MP2) и DFT приступом, корелисане су са мутагеним активностима ових изомера. Установљена је врло добра линерана корелација (Rav = 0,99) између средње поларизабилности () и експериментално одређених мутагених активности нитрофлуoрантена у различитим сојевима бактерије Salmonella typhimurium из две независне експерименталне студије (Vance and Levin, Environ. Mutagen. 6 (1984) 797 и Zielinska et al., Mutation Res. 206 (1988) 131). Веће вредности извода поларизабилности у односу на νsNO+CN вибрациону координату за 8-NF и 3-NF у поређењу са 1-NF и 7-NF и, следствено томе, веће вредности Раман активности у спектрима које су у корелацији са мутагеном активношћу, упућују на знатне молекулске интеракције дуж ове вибрационе координате. Резултати указују да је везивање изомера NF за активно место ензима главни корак у активацији мутагености код ових нитро деривата.",
publisher = "Serbia : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations, Uloga molekulskih osobina mononitrofluorantena u njihovoj mutagenoj aktivnosti :AB initio i DFT pristup",
volume = "84",
number = "8",
pages = "861-876",
doi = "10.2298/JSC190509045O"
}

Ostojić, B.,& Đorđević, D.. (2019). The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations. in Journal of the Serbian Chemical Society
Serbia : Serbian Chemical Society., 84(8), 861-876.
https://doi.org/10.2298/JSC190509045O

Ostojić B, Đorđević D. The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations. in Journal of the Serbian Chemical Society. 2019;84(8):861-876.
doi:10.2298/JSC190509045O .

Ostojić, Bojana, Đorđević, Dragana, "The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations" in Journal of the Serbian Chemical Society, 84, no. 8 (2019):861-876,
https://doi.org/10.2298/JSC190509045O . .

TY  - JOUR
AU  - Đorđević, Dragana
AU  - Tošić, Ivana
AU  - Sakan, Sanja
AU  - Petrović, Srđan
AU  - Đuričić - Milanković, Jelena
AU  - Finger, David Christian
AU  - Dagsson-Waldhauserová, Pavla
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3859
AB  - In this work we use chemical fingerprints as characteristics ratios of specific crustal elements Ca/Al, Fe/Al, K/Al, Mg/Al, Mn/Al, Ca/Fe, and Mg/Fe to investigate the long-range transport of volcanic aerosols from Iceland. Volcanic dust enters the atmosphere during suspension processes from Icelandic deserts, but mainly from the dust hot spots in remote areas in Iceland, and it is transmitted to the central Balkan area (Belgrade). For this purpose, backward trajectories from Belgrade (φ = 44°48′; λ = 20°28′) in 2012 and 2013, simultaneous with atmospheric aerosols measurements, were calculated by using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. We found that about 17% of air masses passed over Icelandic territory and arrived to Balkan area. In almost all of these episodes ratios of some investigated elements in suburban aerosols of Balkan area corresponded to the ratios of elements investigated in surface soil of the Rangárvellir area – South Iceland in the vicinity of volcanoes. We identified several episodes, such as August 6–8, 2012; June 2–6, 2013; June 26–28, 2013; and September 18–20, 2013; with the characteristic ratios of the highest number of investigated elements in atmospheric aerosol of central Balkan corresponding to ratios from Icelandic soil material. This study provides evidence that Icelandic dust can travel long distances showing the importance of High Latitude Dust sources. © 2019 Đorđević, Tošić, Sakan, Petrović, Đuričić-Milanković, Finger and Dagsson-Waldhauserová.
PB  - Switzerland : Frontiers Media S.A.
T2  - Frontiers in Earth Science
T1  - Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?
VL  - 7
SP  - 142
DO  - 10.3389/feart.2019.00142
ER  - 

@article{
author = "Đorđević, Dragana and Tošić, Ivana and Sakan, Sanja and Petrović, Srđan and Đuričić - Milanković, Jelena and Finger, David Christian and Dagsson-Waldhauserová, Pavla",
year = "2019",
abstract = "In this work we use chemical fingerprints as characteristics ratios of specific crustal elements Ca/Al, Fe/Al, K/Al, Mg/Al, Mn/Al, Ca/Fe, and Mg/Fe to investigate the long-range transport of volcanic aerosols from Iceland. Volcanic dust enters the atmosphere during suspension processes from Icelandic deserts, but mainly from the dust hot spots in remote areas in Iceland, and it is transmitted to the central Balkan area (Belgrade). For this purpose, backward trajectories from Belgrade (φ = 44°48′; λ = 20°28′) in 2012 and 2013, simultaneous with atmospheric aerosols measurements, were calculated by using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. We found that about 17% of air masses passed over Icelandic territory and arrived to Balkan area. In almost all of these episodes ratios of some investigated elements in suburban aerosols of Balkan area corresponded to the ratios of elements investigated in surface soil of the Rangárvellir area – South Iceland in the vicinity of volcanoes. We identified several episodes, such as August 6–8, 2012; June 2–6, 2013; June 26–28, 2013; and September 18–20, 2013; with the characteristic ratios of the highest number of investigated elements in atmospheric aerosol of central Balkan corresponding to ratios from Icelandic soil material. This study provides evidence that Icelandic dust can travel long distances showing the importance of High Latitude Dust sources. © 2019 Đorđević, Tošić, Sakan, Petrović, Đuričić-Milanković, Finger and Dagsson-Waldhauserová.",
publisher = "Switzerland : Frontiers Media S.A.",
journal = "Frontiers in Earth Science",
title = "Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?",
volume = "7",
pages = "142",
doi = "10.3389/feart.2019.00142"
}

Đorđević, D., Tošić, I., Sakan, S., Petrović, S., Đuričić - Milanković, J., Finger, D. C.,& Dagsson-Waldhauserová, P.. (2019). Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?. in Frontiers in Earth Science
Switzerland : Frontiers Media S.A.., 7, 142.
https://doi.org/10.3389/feart.2019.00142

Đorđević D, Tošić I, Sakan S, Petrović S, Đuričić - Milanković J, Finger DC, Dagsson-Waldhauserová P. Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?. in Frontiers in Earth Science. 2019;7:142.
doi:10.3389/feart.2019.00142 .

Đorđević, Dragana, Tošić, Ivana, Sakan, Sanja, Petrović, Srđan, Đuričić - Milanković, Jelena, Finger, David Christian, Dagsson-Waldhauserová, Pavla, "Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?" in Frontiers in Earth Science, 7 (2019):142,
https://doi.org/10.3389/feart.2019.00142 . .

TY  - THES
AU  - Vidaković, Danijela
PY  - 2019
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=6914
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:20265/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025220018
UR  - http://nardus.mpn.gov.rs/123456789/11507
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3428
AB  - Silikatne alge su opšte prihvaćene kao indikatori procene stanja i promena uslovau vodenim ekosistemima. Osobine koje ih čine odličnim indikatorima su mnogobrojne:globalna rasprostranjenost, naseljavanje različitih mikrostaništa, prisutnost tokom celegodine, kratko vreme generacije individualnih populacija, njihove dobro poznateekološke valence, standardizovani načini uzorkovanja, pravljenja trajnih preparata injihovog čuvanja, identifikacija do nivoa vrste i jasno definisan način procene brojnosti.Prvi program monitoringa ekološkog statusa površinskih voda u Republici Srbiji, koji jeusklađen sa zahtevima Okvirne direktive o vodama (ODV) započet je 2012. godine.Cilj ove doktorske disertacije je utvrđivanje diverziteta i sezonske dinamikeepilitskih zajednica silikatnih algi, formiranje preliminarne liste bioindikatora epilitskihsilikatnih algi, predlog potencijalnih korekcija odgovarajućih dijatomnih indeksa zateritoriju Republike Srbije i procena ekološkog statusa odabranih reka zapadne i centralneSrbije.Istraživanjem su obuhvaćene tri reke u zapadnoj Srbiji (Rača, Raška i Studenica)i jedna u centralnoj Srbiji (Rasina). Sakupljanje uzoraka je obavljeno šest puta u toku2011. i 2012. godine, sa šest lokaliteta u rekama Rači, Rasini i Studenici, odnosno sa petlokaliteta u reci Raški. Podaci neophodni za izračunavanje indikatorskih vrednostisilikatnih algi su dobijeni iz Agencije za zaštitu životne sredine Republike Srbije.Tokom istraživanog perioda najveći broj taksona u epilitskoj zajednici silikatnihalgi je identifikovan u Rasini (251), zatim u Studenici (190), Rači (171), dok je u Raškizabeležen najmanji broj taksona (122). Gomphonema, Navicula i Nitzschia su dominantnirodovi u odnosu na broj taksona u svim istraživanim rekama.Od ukupnog broja identifikovanih taksona 69 je po prvi put zabeleženo zateritoriju Srbije. Među njima, Geissleria gereckei, Navicula splendicula i Naviculamoskalii su taksoni koji su retko nalaženi u Evropi...
AB  - Diatoms are generally accepted as indicators for ecological status assessment andconditions change in aquatic ecosystems. Features that make them excellent indicatorsare numerous: worldwide distribution, colonization of different microhabitats, presencethroughout the year, short generation time, known autecological characteristics,standardized sampling methods, making the permanent slides, their storage, identificationto the level of the species and a clearly defined method of estimating the valve number.According to the Water Framework Directive (WFD), the first program for the monitoringof the ecological status of surface waters in the Republic of Serbia, started in 2012.The aim of this doctoral dissertation is determination of diversity and seasonaldynamics of epilithic diatoms, to form a preliminary list of epilithic diatom indicators,proposal of potential corrections of the appropriate diatom indices for the territory of theRepublic of Serbia and ecological status assessment of selected rivers in Western andCentral Serbia.The investigation includes three rivers in Western Serbia (Rača, Raška andStudenica) and one in Central Serbia (Rasina). Sampling was carried out six times during2011 and 2012, on six sites in the rivers Rača, Rasina and Studenica and five in the RaškaRiver. The data necessary for calculating diatom indicator values were obtained from theSerbian Environmental Protection Agency.During the investigated period, the highest number of taxa in the epilithic diatomcommunity was recorded in the Rasina River (251), than in the Sudenica River (190), theRača River (171), while the smallest number of taxa was recorded in the Raška River(122). The most abundant genera were Gomphonema, Navicula and Nitzschia.Of the total number of identified taxa 69 have been noted for the first time inSerbian diatom flora. Among them, Geissleria gereckei, Navicula splendicula andNavicula moskalii are taxa rarely found in Europe, too...
PB  - Универзитет у Београду, Биолошки факултет
T2  - Универзитет у Београду
T1  - Bioindikatorske karakteristike epilitskih silikatnih algi i procena ekološkog statusa odabranih reka zapadne i centralne Srbije
UR  - https://hdl.handle.net/21.15107/rcub_nardus_11507
ER  - 

@phdthesis{
author = "Vidaković, Danijela",
year = "2019",
abstract = "Silikatne alge su opšte prihvaćene kao indikatori procene stanja i promena uslovau vodenim ekosistemima. Osobine koje ih čine odličnim indikatorima su mnogobrojne:globalna rasprostranjenost, naseljavanje različitih mikrostaništa, prisutnost tokom celegodine, kratko vreme generacije individualnih populacija, njihove dobro poznateekološke valence, standardizovani načini uzorkovanja, pravljenja trajnih preparata injihovog čuvanja, identifikacija do nivoa vrste i jasno definisan način procene brojnosti.Prvi program monitoringa ekološkog statusa površinskih voda u Republici Srbiji, koji jeusklađen sa zahtevima Okvirne direktive o vodama (ODV) započet je 2012. godine.Cilj ove doktorske disertacije je utvrđivanje diverziteta i sezonske dinamikeepilitskih zajednica silikatnih algi, formiranje preliminarne liste bioindikatora epilitskihsilikatnih algi, predlog potencijalnih korekcija odgovarajućih dijatomnih indeksa zateritoriju Republike Srbije i procena ekološkog statusa odabranih reka zapadne i centralneSrbije.Istraživanjem su obuhvaćene tri reke u zapadnoj Srbiji (Rača, Raška i Studenica)i jedna u centralnoj Srbiji (Rasina). Sakupljanje uzoraka je obavljeno šest puta u toku2011. i 2012. godine, sa šest lokaliteta u rekama Rači, Rasini i Studenici, odnosno sa petlokaliteta u reci Raški. Podaci neophodni za izračunavanje indikatorskih vrednostisilikatnih algi su dobijeni iz Agencije za zaštitu životne sredine Republike Srbije.Tokom istraživanog perioda najveći broj taksona u epilitskoj zajednici silikatnihalgi je identifikovan u Rasini (251), zatim u Studenici (190), Rači (171), dok je u Raškizabeležen najmanji broj taksona (122). Gomphonema, Navicula i Nitzschia su dominantnirodovi u odnosu na broj taksona u svim istraživanim rekama.Od ukupnog broja identifikovanih taksona 69 je po prvi put zabeleženo zateritoriju Srbije. Među njima, Geissleria gereckei, Navicula splendicula i Naviculamoskalii su taksoni koji su retko nalaženi u Evropi..., Diatoms are generally accepted as indicators for ecological status assessment andconditions change in aquatic ecosystems. Features that make them excellent indicatorsare numerous: worldwide distribution, colonization of different microhabitats, presencethroughout the year, short generation time, known autecological characteristics,standardized sampling methods, making the permanent slides, their storage, identificationto the level of the species and a clearly defined method of estimating the valve number.According to the Water Framework Directive (WFD), the first program for the monitoringof the ecological status of surface waters in the Republic of Serbia, started in 2012.The aim of this doctoral dissertation is determination of diversity and seasonaldynamics of epilithic diatoms, to form a preliminary list of epilithic diatom indicators,proposal of potential corrections of the appropriate diatom indices for the territory of theRepublic of Serbia and ecological status assessment of selected rivers in Western andCentral Serbia.The investigation includes three rivers in Western Serbia (Rača, Raška andStudenica) and one in Central Serbia (Rasina). Sampling was carried out six times during2011 and 2012, on six sites in the rivers Rača, Rasina and Studenica and five in the RaškaRiver. The data necessary for calculating diatom indicator values were obtained from theSerbian Environmental Protection Agency.During the investigated period, the highest number of taxa in the epilithic diatomcommunity was recorded in the Rasina River (251), than in the Sudenica River (190), theRača River (171), while the smallest number of taxa was recorded in the Raška River(122). The most abundant genera were Gomphonema, Navicula and Nitzschia.Of the total number of identified taxa 69 have been noted for the first time inSerbian diatom flora. Among them, Geissleria gereckei, Navicula splendicula andNavicula moskalii are taxa rarely found in Europe, too...",
publisher = "Универзитет у Београду, Биолошки факултет",
journal = "Универзитет у Београду",
title = "Bioindikatorske karakteristike epilitskih silikatnih algi i procena ekološkog statusa odabranih reka zapadne i centralne Srbije",
url = "https://hdl.handle.net/21.15107/rcub_nardus_11507"
}

Vidaković, D.. (2019). Bioindikatorske karakteristike epilitskih silikatnih algi i procena ekološkog statusa odabranih reka zapadne i centralne Srbije. in Универзитет у Београду
Универзитет у Београду, Биолошки факултет..
https://hdl.handle.net/21.15107/rcub_nardus_11507

Vidaković D. Bioindikatorske karakteristike epilitskih silikatnih algi i procena ekološkog statusa odabranih reka zapadne i centralne Srbije. in Универзитет у Београду. 2019;.
https://hdl.handle.net/21.15107/rcub_nardus_11507 .

Vidaković, Danijela, "Bioindikatorske karakteristike epilitskih silikatnih algi i procena ekološkog statusa odabranih reka zapadne i centralne Srbije" in Универзитет у Београду (2019),
https://hdl.handle.net/21.15107/rcub_nardus_11507 .

TY  - JOUR
AU  - Breberina, Luka
AU  - Zlatović, Mario
AU  - Nikolić, Milan
AU  - Stojanović, Srđan
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3233
AB  - Protein‐protein interactions are an important phenomenon in biological processes and functions. We used the manually curated non‐redundant dataset of 118 phycocyanin interfaces to gain additional insight into this phenomenon using a robust inter‐atomic non‐covalent interaction analyzing tool PPCheck. Our observations indicate that there is a relatively high composition of hydrophobic residues at the interfaces. Most of the interface residues are clustered at the middle of the range which we call “standard‐size” interfaces. Furthermore, the multiple interaction patterns founded in the present study indicate that more than half of the residues involved in these interactions participate in multiple and water‐bridged hydrogen bonds. Thus, hydrogen bonds contribute maximally towards the stability of protein‐protein complexes. The analysis shows that hydrogen bond energies contribute to about 88 % to the total energy and it also increases with interface size. Van der Waals (vdW) energy contributes to 9.3 %±1.7 % on average in these complexes. Moreover, there is about 1.9 %±1.5 % contribution by electrostatic energy. Nevertheless, the role by vdW and electrostatic energy could not be ignored in interface binding. Results show that the total binding energy is more for large phycocyanin interfaces. The normalized energy per residue was less than −16 kJ mol−1, while most of them have energy in the range from −6 to −14 kJ mol−1. The non‐covalent interacting residues in these proteins were found to be highly conserved. Obtained results might contribute to the understanding of structural stability of this class of evolutionary essential proteins with increased practical application and future designs of novel protein‐bioactive compound interactions.
PB  - Wiley
T2  - Molecular Informatics
T1  - Computational Analysis of Non‐covalent Interactions in Phycocyanin Subunit Interfaces
VL  - 38
IS  - 11-12
SP  - 1800145
DO  - 10.1002/minf.201800145
ER  - 

@article{
author = "Breberina, Luka and Zlatović, Mario and Nikolić, Milan and Stojanović, Srđan",
year = "2019",
abstract = "Protein‐protein interactions are an important phenomenon in biological processes and functions. We used the manually curated non‐redundant dataset of 118 phycocyanin interfaces to gain additional insight into this phenomenon using a robust inter‐atomic non‐covalent interaction analyzing tool PPCheck. Our observations indicate that there is a relatively high composition of hydrophobic residues at the interfaces. Most of the interface residues are clustered at the middle of the range which we call “standard‐size” interfaces. Furthermore, the multiple interaction patterns founded in the present study indicate that more than half of the residues involved in these interactions participate in multiple and water‐bridged hydrogen bonds. Thus, hydrogen bonds contribute maximally towards the stability of protein‐protein complexes. The analysis shows that hydrogen bond energies contribute to about 88 % to the total energy and it also increases with interface size. Van der Waals (vdW) energy contributes to 9.3 %±1.7 % on average in these complexes. Moreover, there is about 1.9 %±1.5 % contribution by electrostatic energy. Nevertheless, the role by vdW and electrostatic energy could not be ignored in interface binding. Results show that the total binding energy is more for large phycocyanin interfaces. The normalized energy per residue was less than −16 kJ mol−1, while most of them have energy in the range from −6 to −14 kJ mol−1. The non‐covalent interacting residues in these proteins were found to be highly conserved. Obtained results might contribute to the understanding of structural stability of this class of evolutionary essential proteins with increased practical application and future designs of novel protein‐bioactive compound interactions.",
publisher = "Wiley",
journal = "Molecular Informatics",
title = "Computational Analysis of Non‐covalent Interactions in Phycocyanin Subunit Interfaces",
volume = "38",
number = "11-12",
pages = "1800145",
doi = "10.1002/minf.201800145"
}

Breberina, L., Zlatović, M., Nikolić, M.,& Stojanović, S.. (2019). Computational Analysis of Non‐covalent Interactions in Phycocyanin Subunit Interfaces. in Molecular Informatics
Wiley., 38(11-12), 1800145.
https://doi.org/10.1002/minf.201800145

Breberina L, Zlatović M, Nikolić M, Stojanović S. Computational Analysis of Non‐covalent Interactions in Phycocyanin Subunit Interfaces. in Molecular Informatics. 2019;38(11-12):1800145.
doi:10.1002/minf.201800145 .

Breberina, Luka, Zlatović, Mario, Nikolić, Milan, Stojanović, Srđan, "Computational Analysis of Non‐covalent Interactions in Phycocyanin Subunit Interfaces" in Molecular Informatics, 38, no. 11-12 (2019):1800145,
https://doi.org/10.1002/minf.201800145 . .

TY  - JOUR
AU  - Vidaković, Danijela
AU  - Krizmanić, Jelena
AU  - Dojčinović, Biljana
AU  - Pantelić, Ana
AU  - Gavrilović, Bojan
AU  - Živanović, Milica
AU  - Novaković, Boris
AU  - Ćirić, Miloš
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2871
AB  - Alkaline soda lakes are unique habitats found in specific geographic regions, usually with dry climate. The Carpathian Basin
is one of those regions very important for habitat and biodiversity conservation in Europe, with natural soda lakes found in
Austria, Hungary and Serbia. In comparison to other two countries from Central Europe, algal biodiversity studies of saline
soda lakes in Serbia are scarce. Lake Velika Rusanda has the highest measured salinity of all saline lakes in the Carpathian
Basin and there were no reports of its diatom species richness and diversity till now. We conducted 2-year investigation
programme to study biodiversity and seasonal dynamics of diatoms in this lake. A total of 27 diatom taxa were found, almost
all of them attached to reed and much less in benthos and plankton. Five new diatom species for Serbia were recorded, Craticula
halopannonica, Navicymbula pusilla, Hantzschia weyprechtii, Nitzschia thermaloides and Navicula staffordiae. The
last mentioned is new for Europe as well. Lake Velika Rusanda is inhabited mostly by alkaliphilous and halophilic diatoms.
Since diatoms are used as bioindicators in soda lakes, our results will improve their further application in ecological status
assessment of these fragile habitats in the Carpathian Basin.
PB  - Springer Nature Publishing AG
T2  - Extremophiles
T1  - Alkaline soda Lake Velika Rusanda (Serbia): the first insight into diatom diversity of this extreme saline lake
VL  - 23
IS  - 3
SP  - 347
EP  - 357
DO  - 10.1007/s00792-019-01088-6
ER  - 

@article{
author = "Vidaković, Danijela and Krizmanić, Jelena and Dojčinović, Biljana and Pantelić, Ana and Gavrilović, Bojan and Živanović, Milica and Novaković, Boris and Ćirić, Miloš",
year = "2019",
abstract = "Alkaline soda lakes are unique habitats found in specific geographic regions, usually with dry climate. The Carpathian Basin
is one of those regions very important for habitat and biodiversity conservation in Europe, with natural soda lakes found in
Austria, Hungary and Serbia. In comparison to other two countries from Central Europe, algal biodiversity studies of saline
soda lakes in Serbia are scarce. Lake Velika Rusanda has the highest measured salinity of all saline lakes in the Carpathian
Basin and there were no reports of its diatom species richness and diversity till now. We conducted 2-year investigation
programme to study biodiversity and seasonal dynamics of diatoms in this lake. A total of 27 diatom taxa were found, almost
all of them attached to reed and much less in benthos and plankton. Five new diatom species for Serbia were recorded, Craticula
halopannonica, Navicymbula pusilla, Hantzschia weyprechtii, Nitzschia thermaloides and Navicula staffordiae. The
last mentioned is new for Europe as well. Lake Velika Rusanda is inhabited mostly by alkaliphilous and halophilic diatoms.
Since diatoms are used as bioindicators in soda lakes, our results will improve their further application in ecological status
assessment of these fragile habitats in the Carpathian Basin.",
publisher = "Springer Nature Publishing AG",
journal = "Extremophiles",
title = "Alkaline soda Lake Velika Rusanda (Serbia): the first insight into diatom diversity of this extreme saline lake",
volume = "23",
number = "3",
pages = "347-357",
doi = "10.1007/s00792-019-01088-6"
}

Vidaković, D., Krizmanić, J., Dojčinović, B., Pantelić, A., Gavrilović, B., Živanović, M., Novaković, B.,& Ćirić, M.. (2019). Alkaline soda Lake Velika Rusanda (Serbia): the first insight into diatom diversity of this extreme saline lake. in Extremophiles
Springer Nature Publishing AG., 23(3), 347-357.
https://doi.org/10.1007/s00792-019-01088-6

Vidaković D, Krizmanić J, Dojčinović B, Pantelić A, Gavrilović B, Živanović M, Novaković B, Ćirić M. Alkaline soda Lake Velika Rusanda (Serbia): the first insight into diatom diversity of this extreme saline lake. in Extremophiles. 2019;23(3):347-357.
doi:10.1007/s00792-019-01088-6 .

Vidaković, Danijela, Krizmanić, Jelena, Dojčinović, Biljana, Pantelić, Ana, Gavrilović, Bojan, Živanović, Milica, Novaković, Boris, Ćirić, Miloš, "Alkaline soda Lake Velika Rusanda (Serbia): the first insight into diatom diversity of this extreme saline lake" in Extremophiles, 23, no. 3 (2019):347-357,
https://doi.org/10.1007/s00792-019-01088-6 . .

TY  - JOUR
AU  - Yan, Luo-bin
AU  - Kašanin-Grubin, Milica
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3355
AB  - Red beds cover approximately 9.5% of China, and are home to approximately 144 million people. In total, 83% of these lands are distributed in humid regions making it an important part of research on red bed soil erosion in China in these areas. This paper presents the main types of land degradation in red bed landscapes and the status of current soil erosion in a typical red bed basin, the Nanxiong Basin located in the north of Guangdong Province, China, and establishes the connection between management strategies and regional economic development in humid red bed regions of China. The soil erosive modulus was calculated in the Nanxiong Basin by using RUSLE (The Revised Universal Soil Loss Equation). The results of overlapping analyses demonstrated that appropriate measures, such as the Return Farmland to Forests initiative, should be taken at the junction of central red bed areas and mountainous areas in order to mitigate current soil erosion. Two examples are presented to demonstrate this: the tourism development in Mt. Danxiashan, a noted scenic mountainous area near Nanxiong Basin, and the land degradation mitigation in the Nanxiong Basin. Both examples promote local economic growth while simultaneously protecting the environment. A ‘stakeholder’ strategy is pursued at Mt. Danxiashan, which can help residents to understand their positive effects on the environment as well as increase their income. The second example, in Nanxiong City, showcases how local farmers became stakeholders by implementing contract responsibility and self-support systems for economic forests and terraced land in the 1980s.
PB  - Springer Science and Business Media LLC
T2  - Journal of Mountain Science
T1  - Land degradation and management of red beds in China: Two case studies
VL  - 16
IS  - 11
SP  - 2591
EP  - 2604
DO  - 10.1007/s11629-019-5560-2
ER  - 

@article{
author = "Yan, Luo-bin and Kašanin-Grubin, Milica",
year = "2019",
abstract = "Red beds cover approximately 9.5% of China, and are home to approximately 144 million people. In total, 83% of these lands are distributed in humid regions making it an important part of research on red bed soil erosion in China in these areas. This paper presents the main types of land degradation in red bed landscapes and the status of current soil erosion in a typical red bed basin, the Nanxiong Basin located in the north of Guangdong Province, China, and establishes the connection between management strategies and regional economic development in humid red bed regions of China. The soil erosive modulus was calculated in the Nanxiong Basin by using RUSLE (The Revised Universal Soil Loss Equation). The results of overlapping analyses demonstrated that appropriate measures, such as the Return Farmland to Forests initiative, should be taken at the junction of central red bed areas and mountainous areas in order to mitigate current soil erosion. Two examples are presented to demonstrate this: the tourism development in Mt. Danxiashan, a noted scenic mountainous area near Nanxiong Basin, and the land degradation mitigation in the Nanxiong Basin. Both examples promote local economic growth while simultaneously protecting the environment. A ‘stakeholder’ strategy is pursued at Mt. Danxiashan, which can help residents to understand their positive effects on the environment as well as increase their income. The second example, in Nanxiong City, showcases how local farmers became stakeholders by implementing contract responsibility and self-support systems for economic forests and terraced land in the 1980s.",
publisher = "Springer Science and Business Media LLC",
journal = "Journal of Mountain Science",
title = "Land degradation and management of red beds in China: Two case studies",
volume = "16",
number = "11",
pages = "2591-2604",
doi = "10.1007/s11629-019-5560-2"
}

Yan, L.,& Kašanin-Grubin, M.. (2019). Land degradation and management of red beds in China: Two case studies. in Journal of Mountain Science
Springer Science and Business Media LLC., 16(11), 2591-2604.
https://doi.org/10.1007/s11629-019-5560-2

Yan L, Kašanin-Grubin M. Land degradation and management of red beds in China: Two case studies. in Journal of Mountain Science. 2019;16(11):2591-2604.
doi:10.1007/s11629-019-5560-2 .

Yan, Luo-bin, Kašanin-Grubin, Milica, "Land degradation and management of red beds in China: Two case studies" in Journal of Mountain Science, 16, no. 11 (2019):2591-2604,
https://doi.org/10.1007/s11629-019-5560-2 . .

TY  - JOUR
AU  - Vidaković, Danijela
AU  - Levkov, Zlatko
AU  - Hamilton, Paul
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4544
AB  - The genus Neidiopsis is small comprising eight known taxa distributed in oligotrophic to dystrophic freshwater habitats.
During observations of diatoms from alpine intermittent ponds on the Shara Mountain, Republic of North Macedonia,
a species of Neidiopsis with high abundance was observed. It is characterized by linear to linear–lanceolate valves with
a slightly undulated margin, 25.0–43.5 μm long and 6.0–7.0 μm wide. The raphe is filiform with straight proximal and
deflected distal raphe endings to the same side of the valve. Striae are partly biseriate near the axial area and continue as
uniseriate circular areolae (ca 40 in 10 μm) towards the valve mantle. Striae on each side of the valve are crossed by a
prominent longitudinal line located slightly closer to the valve margin. Ultrastructural features of the type population clearly
place this taxon into the genus Neidiopsis and aligned to N. levanderi sensu stricto. A similar documented ecotype population
(N. levanderi “calcicola”) sensu Lange-Bertalot (2001) is combined with our population and considered a new species N.
borealis sp. nov.
PB  - Magnolia Press
T2  - Phytotaxa
T1  - Neidiopsis borealis sp. nov., a new diatom species from the mountain Shar Planina, Republic of North Macedonia
VL  - 402
IS  - 1
SP  - 21
EP  - 28
DO  - 10.11646/phytotaxa.402.1.3
ER  - 

@article{
author = "Vidaković, Danijela and Levkov, Zlatko and Hamilton, Paul",
year = "2019",
abstract = "The genus Neidiopsis is small comprising eight known taxa distributed in oligotrophic to dystrophic freshwater habitats.
During observations of diatoms from alpine intermittent ponds on the Shara Mountain, Republic of North Macedonia,
a species of Neidiopsis with high abundance was observed. It is characterized by linear to linear–lanceolate valves with
a slightly undulated margin, 25.0–43.5 μm long and 6.0–7.0 μm wide. The raphe is filiform with straight proximal and
deflected distal raphe endings to the same side of the valve. Striae are partly biseriate near the axial area and continue as
uniseriate circular areolae (ca 40 in 10 μm) towards the valve mantle. Striae on each side of the valve are crossed by a
prominent longitudinal line located slightly closer to the valve margin. Ultrastructural features of the type population clearly
place this taxon into the genus Neidiopsis and aligned to N. levanderi sensu stricto. A similar documented ecotype population
(N. levanderi “calcicola”) sensu Lange-Bertalot (2001) is combined with our population and considered a new species N.
borealis sp. nov.",
publisher = "Magnolia Press",
journal = "Phytotaxa",
title = "Neidiopsis borealis sp. nov., a new diatom species from the mountain Shar Planina, Republic of North Macedonia",
volume = "402",
number = "1",
pages = "21-28",
doi = "10.11646/phytotaxa.402.1.3"
}

Vidaković, D., Levkov, Z.,& Hamilton, P.. (2019). Neidiopsis borealis sp. nov., a new diatom species from the mountain Shar Planina, Republic of North Macedonia. in Phytotaxa
Magnolia Press., 402(1), 21-28.
https://doi.org/10.11646/phytotaxa.402.1.3

Vidaković D, Levkov Z, Hamilton P. Neidiopsis borealis sp. nov., a new diatom species from the mountain Shar Planina, Republic of North Macedonia. in Phytotaxa. 2019;402(1):21-28.
doi:10.11646/phytotaxa.402.1.3 .

Vidaković, Danijela, Levkov, Zlatko, Hamilton, Paul, "Neidiopsis borealis sp. nov., a new diatom species from the mountain Shar Planina, Republic of North Macedonia" in Phytotaxa, 402, no. 1 (2019):21-28,
https://doi.org/10.11646/phytotaxa.402.1.3 . .

TY  - JOUR
AU  - Damnjanović, B.
AU  - Novković, M.
AU  - Vesić, Aleksandra
AU  - Živković, M.
AU  - Radulović, Siniša
AU  - Vukov, D.
AU  - Anđelković, A.
AU  - Cvijanović, D.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2387
AB  - Massive gravel excavation is one of the most destructive forces affecting riverine habitats in Europe. However, gravel pit lakes are also recognized as valuable wildlife refuge areas. Different hydromorphological characteristics of gravel pits may influence aquatic biota differently. Optimal selection of gravel excavation procedures may create favorable conditions for ecosystem diversity. The aim of this study was to correlate hydromorphological variables against macrophyte composition and metrics in gravel pit lakes along the lower course of the Drina River. Field research was carried out at 18 gravel pit lakes (60 survey sectors) and four fluvial lakes (13 survey sectors), during the summer months of 2015, 2016 and 2018. The role of hydromorphological variables in structuring macrophyte assemblages was tested using the partial Canonical Correspondence Analysis, while the Generalized Linear Model was performed to test the ability of selected hydromorphological attributes to predict macrophyte quantitative metrics. The results demonstrated high habitat quality and conservation value of the gravel pit lakes compared to natural sites. Hydromorphological predictors for different macrophyte assemblages were defined. General recommendation is that two pit types should be excavated within a single extraction field, with the minimal impact to the riparian and shore zones. The first type should be located up to 100 m from river main channel, having area < 1000 m2 and a relative depth ratio > 5%. The second type should be optimally located 300 m form river main channel, with maximum depth of 3–4 m, surface area of 10,000–20,000 m2, and a relative depth ratio < 5%.
PB  - Springer Netherlands
T2  - Wetlands Ecology and Management
T1  - Biodiversity-friendly designs for gravel pit lakes along the Drina River floodplain (the Middle Danube Basin, Serbia)
DO  - 10.1007/s11273-018-9641-8
ER  - 

@article{
author = "Damnjanović, B. and Novković, M. and Vesić, Aleksandra and Živković, M. and Radulović, Siniša and Vukov, D. and Anđelković, A. and Cvijanović, D.",
year = "2018",
abstract = "Massive gravel excavation is one of the most destructive forces affecting riverine habitats in Europe. However, gravel pit lakes are also recognized as valuable wildlife refuge areas. Different hydromorphological characteristics of gravel pits may influence aquatic biota differently. Optimal selection of gravel excavation procedures may create favorable conditions for ecosystem diversity. The aim of this study was to correlate hydromorphological variables against macrophyte composition and metrics in gravel pit lakes along the lower course of the Drina River. Field research was carried out at 18 gravel pit lakes (60 survey sectors) and four fluvial lakes (13 survey sectors), during the summer months of 2015, 2016 and 2018. The role of hydromorphological variables in structuring macrophyte assemblages was tested using the partial Canonical Correspondence Analysis, while the Generalized Linear Model was performed to test the ability of selected hydromorphological attributes to predict macrophyte quantitative metrics. The results demonstrated high habitat quality and conservation value of the gravel pit lakes compared to natural sites. Hydromorphological predictors for different macrophyte assemblages were defined. General recommendation is that two pit types should be excavated within a single extraction field, with the minimal impact to the riparian and shore zones. The first type should be located up to 100 m from river main channel, having area < 1000 m2 and a relative depth ratio > 5%. The second type should be optimally located 300 m form river main channel, with maximum depth of 3–4 m, surface area of 10,000–20,000 m2, and a relative depth ratio < 5%.",
publisher = "Springer Netherlands",
journal = "Wetlands Ecology and Management",
title = "Biodiversity-friendly designs for gravel pit lakes along the Drina River floodplain (the Middle Danube Basin, Serbia)",
doi = "10.1007/s11273-018-9641-8"
}

Damnjanović, B., Novković, M., Vesić, A., Živković, M., Radulović, S., Vukov, D., Anđelković, A.,& Cvijanović, D.. (2018). Biodiversity-friendly designs for gravel pit lakes along the Drina River floodplain (the Middle Danube Basin, Serbia). in Wetlands Ecology and Management
Springer Netherlands..
https://doi.org/10.1007/s11273-018-9641-8

Damnjanović B, Novković M, Vesić A, Živković M, Radulović S, Vukov D, Anđelković A, Cvijanović D. Biodiversity-friendly designs for gravel pit lakes along the Drina River floodplain (the Middle Danube Basin, Serbia). in Wetlands Ecology and Management. 2018;.
doi:10.1007/s11273-018-9641-8 .

Damnjanović, B., Novković, M., Vesić, Aleksandra, Živković, M., Radulović, Siniša, Vukov, D., Anđelković, A., Cvijanović, D., "Biodiversity-friendly designs for gravel pit lakes along the Drina River floodplain (the Middle Danube Basin, Serbia)" in Wetlands Ecology and Management (2018),
https://doi.org/10.1007/s11273-018-9641-8 . .

TY  - CHAP
AU  - Blaženčić, Jelena
AU  - Kashta, Lefter
AU  - Vesić, Aleksandra
AU  - Biberdžić, Vera
AU  - Stevanović, Branka
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2416
AB  - Charophytes or stoneworts (Charales, Characeae) are submerged green macroscopic algae of great importance for the environmental and economic sustainability of the aquatic ecosystem of Lake Skadar/Shkodra. In the course of many years of research of these algae in the Montenegrin and the Albanian part of Lake Skadar/Shkodra, 30 taxa of charophytes have been registered in the rank of species, forms and varieties. These taxa belong to the four genera of the Characeae family existing in the lake – namely, Chara, Nitella, Tolypella and Nitellopsis. The largest number of taxa belongs to the genus Chara, namely, 12 species, 3 forms and 2 varieties, 10 species belong to the genus Nitella, 2 species belong to the genus Tolypella and, finally, only 1 species belongs to the genus Nitellopsis. The ecological and phytocenological characteristics of each taxon, as well as the hydrological and geomorphological characteristics of their finding sites, are presented in order to emphasize the fact that Lake Skadar/Shkodra is one of the most significant charophyte diversity centres in the Balkan Peninsula. All the data presented in this study are based on our own field investigations, as well as herbarium and literature surveys.
PB  - Springer Verlag
T2  - Handbook of Environmental Chemistry
T1  - Charophytes (Charales) of lake Skadar/Shkodra: Ecology and distribution
VL  - 80
SP  - 169
EP  - 202
DO  - 10.1007/698_2018_265
ER  - 

@inbook{
author = "Blaženčić, Jelena and Kashta, Lefter and Vesić, Aleksandra and Biberdžić, Vera and Stevanović, Branka",
year = "2018",
abstract = "Charophytes or stoneworts (Charales, Characeae) are submerged green macroscopic algae of great importance for the environmental and economic sustainability of the aquatic ecosystem of Lake Skadar/Shkodra. In the course of many years of research of these algae in the Montenegrin and the Albanian part of Lake Skadar/Shkodra, 30 taxa of charophytes have been registered in the rank of species, forms and varieties. These taxa belong to the four genera of the Characeae family existing in the lake – namely, Chara, Nitella, Tolypella and Nitellopsis. The largest number of taxa belongs to the genus Chara, namely, 12 species, 3 forms and 2 varieties, 10 species belong to the genus Nitella, 2 species belong to the genus Tolypella and, finally, only 1 species belongs to the genus Nitellopsis. The ecological and phytocenological characteristics of each taxon, as well as the hydrological and geomorphological characteristics of their finding sites, are presented in order to emphasize the fact that Lake Skadar/Shkodra is one of the most significant charophyte diversity centres in the Balkan Peninsula. All the data presented in this study are based on our own field investigations, as well as herbarium and literature surveys.",
publisher = "Springer Verlag",
journal = "Handbook of Environmental Chemistry",
booktitle = "Charophytes (Charales) of lake Skadar/Shkodra: Ecology and distribution",
volume = "80",
pages = "169-202",
doi = "10.1007/698_2018_265"
}

Blaženčić, J., Kashta, L., Vesić, A., Biberdžić, V.,& Stevanović, B.. (2018). Charophytes (Charales) of lake Skadar/Shkodra: Ecology and distribution. in Handbook of Environmental Chemistry
Springer Verlag., 80, 169-202.
https://doi.org/10.1007/698_2018_265

Blaženčić J, Kashta L, Vesić A, Biberdžić V, Stevanović B. Charophytes (Charales) of lake Skadar/Shkodra: Ecology and distribution. in Handbook of Environmental Chemistry. 2018;80:169-202.
doi:10.1007/698_2018_265 .

Blaženčić, Jelena, Kashta, Lefter, Vesić, Aleksandra, Biberdžić, Vera, Stevanović, Branka, "Charophytes (Charales) of lake Skadar/Shkodra: Ecology and distribution" in Handbook of Environmental Chemistry, 80 (2018):169-202,
https://doi.org/10.1007/698_2018_265 . .

TY  - JOUR
AU  - Milovanović, Željka
AU  - Popović, Slađana
AU  - Pantelić, Ana
AU  - Milinkov, Jelena R.
AU  - Milošević, Dragana L.
AU  - Petrović, Vladimir M.
AU  - Vidović, Milka
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3931
AB  - The ionic content was examined in nine aqueous tea extracts in which time of boiling, acidification of the medium using lemon juice and way of preparation were observed as factors. Ion chromatography was used for determination of inorganic anion content, and data were processed using CANOCO program for multivariate analysis. The variations in ionic content were observed among different tea samples. The highest concentrations of chloride, nitrate, phosphate, and sulphate ions were found in nettle, while the highest concentrations of fluorides were detected in elderflower tea infusion. The effect of boiling time (5, 10, and 20 min), acidification of the medium and different preparation procedure (boiling and cooling at room temperature) were statistically presented using principal component analysis. The examined factors did not have a significant effect on the ionic concentration in tea infusions.
AB  - Јонски садржај испитиван је код девет водених раствора чаја, при чему је на екстракцију јона посматран утицај дужине кувања, киселости средине (која је постигнута додатком лимуновог сока) и начинa припреме. Јонска хроматографија коришћена је за одређивање садржаја неорганских анјона, а пoдаци су обрађени помоћу Canoco програма за мултиваријациону анализу. Јонски садржај варира код различитих узорака чаја. Највеће концентрације хлоридних, нитратних, фосфатних и сулфатних јона одређене су у коприви, док су највеће концентрације флуорида одређене у инфузији кантариона. Утицај времена кључања (5, 10 и 20 мин.), киселост медијума и различити начини припреме (кључање и хлађење на собној температури) статистички су приказани помоћу анализе главних компоненти. Испитивани фактори нису имали значајан утицај на јонску концентрацију у чајним инфузијама.
PB  - Serbia : Matica srpska
T2  - Zbornik Matice Srpske za Prirodne Nauke
T1  - Determination of inorganic anions in herbal tea infusions using ion chromatography
T1  - Određivanje neorganskih jona u rastvoru biljnih čajeva jonskom hromatografijom
IS  - 134
SP  - 89
EP  - 99
DO  - 10.2298/ZMSPN1834089M
ER  - 

@article{
author = "Milovanović, Željka and Popović, Slađana and Pantelić, Ana and Milinkov, Jelena R. and Milošević, Dragana L. and Petrović, Vladimir M. and Vidović, Milka",
year = "2018",
abstract = "The ionic content was examined in nine aqueous tea extracts in which time of boiling, acidification of the medium using lemon juice and way of preparation were observed as factors. Ion chromatography was used for determination of inorganic anion content, and data were processed using CANOCO program for multivariate analysis. The variations in ionic content were observed among different tea samples. The highest concentrations of chloride, nitrate, phosphate, and sulphate ions were found in nettle, while the highest concentrations of fluorides were detected in elderflower tea infusion. The effect of boiling time (5, 10, and 20 min), acidification of the medium and different preparation procedure (boiling and cooling at room temperature) were statistically presented using principal component analysis. The examined factors did not have a significant effect on the ionic concentration in tea infusions., Јонски садржај испитиван је код девет водених раствора чаја, при чему је на екстракцију јона посматран утицај дужине кувања, киселости средине (која је постигнута додатком лимуновог сока) и начинa припреме. Јонска хроматографија коришћена је за одређивање садржаја неорганских анјона, а пoдаци су обрађени помоћу Canoco програма за мултиваријациону анализу. Јонски садржај варира код различитих узорака чаја. Највеће концентрације хлоридних, нитратних, фосфатних и сулфатних јона одређене су у коприви, док су највеће концентрације флуорида одређене у инфузији кантариона. Утицај времена кључања (5, 10 и 20 мин.), киселост медијума и различити начини припреме (кључање и хлађење на собној температури) статистички су приказани помоћу анализе главних компоненти. Испитивани фактори нису имали значајан утицај на јонску концентрацију у чајним инфузијама.",
publisher = "Serbia : Matica srpska",
journal = "Zbornik Matice Srpske za Prirodne Nauke",
title = "Determination of inorganic anions in herbal tea infusions using ion chromatography, Određivanje neorganskih jona u rastvoru biljnih čajeva jonskom hromatografijom",
number = "134",
pages = "89-99",
doi = "10.2298/ZMSPN1834089M"
}

Milovanović, Ž., Popović, S., Pantelić, A., Milinkov, J. R., Milošević, D. L., Petrović, V. M.,& Vidović, M.. (2018). Determination of inorganic anions in herbal tea infusions using ion chromatography. in Zbornik Matice Srpske za Prirodne Nauke
Serbia : Matica srpska.(134), 89-99.
https://doi.org/10.2298/ZMSPN1834089M

Milovanović Ž, Popović S, Pantelić A, Milinkov JR, Milošević DL, Petrović VM, Vidović M. Determination of inorganic anions in herbal tea infusions using ion chromatography. in Zbornik Matice Srpske za Prirodne Nauke. 2018;(134):89-99.
doi:10.2298/ZMSPN1834089M .

Milovanović, Željka, Popović, Slađana, Pantelić, Ana, Milinkov, Jelena R., Milošević, Dragana L., Petrović, Vladimir M., Vidović, Milka, "Determination of inorganic anions in herbal tea infusions using ion chromatography" in Zbornik Matice Srpske za Prirodne Nauke, no. 134 (2018):89-99,
https://doi.org/10.2298/ZMSPN1834089M . .

TY  - JOUR
AU  - Popović, Aleksandar R.
AU  - Đinović-Stojanović, Jasna M.
AU  - Đorđević, Dragana
AU  - Relić, Dubravka
AU  - Vranic, Danijela V.
AU  - Milijasevic, Milan P.
AU  - Pezo, Lato
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2320
AB  - A total of 138 samples of canned tuna, sardines and mackerel from the Serbian market were analyzed for toxic (As, Cd, Pb, Hg) element levels using ICPMS. The highest average contents of toxic elements were found to be 1.70 mg kg(-1) for arsenic and 0.026 mg kg(-1) for cadmium in sardine and 0.068 mg kg(-1) for mercury in tuna. The lead content was very similar (similar to 0.048 mg kg(-1)) of the three types of canned fish. None of the fish analyzed contained toxic elements in levels exceeding the maximum allowable levels currently in force. Human health risk assessment of As, Cd, Pb and Hg in canned fish were investigated. A risk assessment based on the measured levels of examined elements indicated that consumption of canned fish according to current eating habits in Serbia presents little risk to human health since the carcinogenic risk is within the acceptable range, 10(-4)-10(-6).
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Journal of Food Composition and Analysis
T1  - Levels of toxic elements in canned fish from the Serbian markets and their health risks assessment
VL  - 67
SP  - 70
EP  - 76
DO  - 10.1016/j.jfca.2018.01.003
ER  - 

@article{
author = "Popović, Aleksandar R. and Đinović-Stojanović, Jasna M. and Đorđević, Dragana and Relić, Dubravka and Vranic, Danijela V. and Milijasevic, Milan P. and Pezo, Lato",
year = "2018",
abstract = "A total of 138 samples of canned tuna, sardines and mackerel from the Serbian market were analyzed for toxic (As, Cd, Pb, Hg) element levels using ICPMS. The highest average contents of toxic elements were found to be 1.70 mg kg(-1) for arsenic and 0.026 mg kg(-1) for cadmium in sardine and 0.068 mg kg(-1) for mercury in tuna. The lead content was very similar (similar to 0.048 mg kg(-1)) of the three types of canned fish. None of the fish analyzed contained toxic elements in levels exceeding the maximum allowable levels currently in force. Human health risk assessment of As, Cd, Pb and Hg in canned fish were investigated. A risk assessment based on the measured levels of examined elements indicated that consumption of canned fish according to current eating habits in Serbia presents little risk to human health since the carcinogenic risk is within the acceptable range, 10(-4)-10(-6).",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Journal of Food Composition and Analysis",
title = "Levels of toxic elements in canned fish from the Serbian markets and their health risks assessment",
volume = "67",
pages = "70-76",
doi = "10.1016/j.jfca.2018.01.003"
}

Popović, A. R., Đinović-Stojanović, J. M., Đorđević, D., Relić, D., Vranic, D. V., Milijasevic, M. P.,& Pezo, L.. (2018). Levels of toxic elements in canned fish from the Serbian markets and their health risks assessment. in Journal of Food Composition and Analysis
Academic Press Inc Elsevier Science, San Diego., 67, 70-76.
https://doi.org/10.1016/j.jfca.2018.01.003

Popović AR, Đinović-Stojanović JM, Đorđević D, Relić D, Vranic DV, Milijasevic MP, Pezo L. Levels of toxic elements in canned fish from the Serbian markets and their health risks assessment. in Journal of Food Composition and Analysis. 2018;67:70-76.
doi:10.1016/j.jfca.2018.01.003 .

Popović, Aleksandar R., Đinović-Stojanović, Jasna M., Đorđević, Dragana, Relić, Dubravka, Vranic, Danijela V., Milijasevic, Milan P., Pezo, Lato, "Levels of toxic elements in canned fish from the Serbian markets and their health risks assessment" in Journal of Food Composition and Analysis, 67 (2018):70-76,
https://doi.org/10.1016/j.jfca.2018.01.003 . .

TY  - JOUR
AU  - Relić, Dubravka
AU  - Heberger, Karoly
AU  - Sakan, Sanja
AU  - Skrbic, Biljana
AU  - Popović, Aleksandar R.
AU  - Đorđević, Dragana
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2324
AB  - This study aims to compare three extraction techniques of four sequential element extraction steps from soil and sediment samples that were taken from the location of the Pancevo petrochemical industry (Serbia). Elements were extracted using three different techniques: conventional, microwave and ultrasound extraction. A novel procedure sum of the ranking differences (SRD) - was able to rank the techniques and elements, to see whether this method is a suitable tool to reveal the similarities and dissimilarities in element extraction techniques, provided that a proper ranking reference is available. The concentrations of the following elements Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Si, Sn, Sr, V and Zn were determined through ICP OES. The different efficiencies and recovery values of element concentrations using each of the three extraction techniques were examined by the CRM BCR-701. By using SRD, we obtained a better separation between the different extraction techniques and steps when we rank their differences among the samples while lower separation was obtained according to analysed elements. Appling this method for ordering the elements could be useful for three purposes: (i) to find possible associations among the elements; (ii) to find possible elements that have outlier concentrations or (iii) detect differences in geochemical origin or behaviour of elements. Cross-validation of the SRD values in combination with cluster and principal component analysis revealed the same groups of extraction steps and techniques.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Chemosphere
T1  - Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods
VL  - 198
SP  - 103
EP  - 110
DO  - 10.1016/j.chemosphere.2017.12.200
ER  - 

@article{
author = "Relić, Dubravka and Heberger, Karoly and Sakan, Sanja and Skrbic, Biljana and Popović, Aleksandar R. and Đorđević, Dragana",
year = "2018",
abstract = "This study aims to compare three extraction techniques of four sequential element extraction steps from soil and sediment samples that were taken from the location of the Pancevo petrochemical industry (Serbia). Elements were extracted using three different techniques: conventional, microwave and ultrasound extraction. A novel procedure sum of the ranking differences (SRD) - was able to rank the techniques and elements, to see whether this method is a suitable tool to reveal the similarities and dissimilarities in element extraction techniques, provided that a proper ranking reference is available. The concentrations of the following elements Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Si, Sn, Sr, V and Zn were determined through ICP OES. The different efficiencies and recovery values of element concentrations using each of the three extraction techniques were examined by the CRM BCR-701. By using SRD, we obtained a better separation between the different extraction techniques and steps when we rank their differences among the samples while lower separation was obtained according to analysed elements. Appling this method for ordering the elements could be useful for three purposes: (i) to find possible associations among the elements; (ii) to find possible elements that have outlier concentrations or (iii) detect differences in geochemical origin or behaviour of elements. Cross-validation of the SRD values in combination with cluster and principal component analysis revealed the same groups of extraction steps and techniques.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Chemosphere",
title = "Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods",
volume = "198",
pages = "103-110",
doi = "10.1016/j.chemosphere.2017.12.200"
}

Relić, D., Heberger, K., Sakan, S., Skrbic, B., Popović, A. R.,& Đorđević, D.. (2018). Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods. in Chemosphere
Oxford : Pergamon-Elsevier Science Ltd., 198, 103-110.
https://doi.org/10.1016/j.chemosphere.2017.12.200

Relić D, Heberger K, Sakan S, Skrbic B, Popović AR, Đorđević D. Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods. in Chemosphere. 2018;198:103-110.
doi:10.1016/j.chemosphere.2017.12.200 .

Relić, Dubravka, Heberger, Karoly, Sakan, Sanja, Skrbic, Biljana, Popović, Aleksandar R., Đorđević, Dragana, "Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods" in Chemosphere, 198 (2018):103-110,
https://doi.org/10.1016/j.chemosphere.2017.12.200 . .

TY  - JOUR
AU  - Nikolić, V.
AU  - Lončarević, Branka
AU  - Popović, Aleksandar R.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2411
AB  - Biodegradation of methacrylic acid and starch graft copolymers was investigated for the first time in this manuscript. Synthesized copolymer was characterized by 1H nuclear magnetic resonance spectroscopy (NMR), Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and elemental analysis. Copolymers with different percentage of grafting, G (%), were buried in three different types of soil. Biodegradation was monitored by measuring mass loss of the samples and using FTIR and SEM. The highest weight loss was in soil for the orchid growth (all samples had biodegradation higher than 89%), followed by soil for the cactus growth (mass loss higher than 70%) and soil rich in humus where some of the samples had biodegradation rate near or less than 50%. The correlation between G (%) and percent of weight loss after biodegradation was not significant in any types of soil. FTIR and SEM showed that after biodegradation, samples still contained both building components. Respiration test showed higher O2 consumption and CO2 production comparing to polystyrene which confirmed biodegradability of the accessible starch in copolymer. Based on the obtained results, degradation mechanism is proposed. First step is biodegradation of easily accessible starch followed by dissolution of the poly(methacrylic acid). This mechanism confirmed that biodegradation depends not only on the percentage of grafting, but also on molecular packaging, chains arrangement and the number and types of microorganisms present in the specific types of soils.
PB  - Springer Verlag
T2  - Polymer Bulletin
T1  - Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch
VL  - 76
SP  - 2197
EP  - 2213
DO  - 10.1007/s00289-018-2484-x
ER  - 

@article{
author = "Nikolić, V. and Lončarević, Branka and Popović, Aleksandar R.",
year = "2018",
abstract = "Biodegradation of methacrylic acid and starch graft copolymers was investigated for the first time in this manuscript. Synthesized copolymer was characterized by 1H nuclear magnetic resonance spectroscopy (NMR), Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and elemental analysis. Copolymers with different percentage of grafting, G (%), were buried in three different types of soil. Biodegradation was monitored by measuring mass loss of the samples and using FTIR and SEM. The highest weight loss was in soil for the orchid growth (all samples had biodegradation higher than 89%), followed by soil for the cactus growth (mass loss higher than 70%) and soil rich in humus where some of the samples had biodegradation rate near or less than 50%. The correlation between G (%) and percent of weight loss after biodegradation was not significant in any types of soil. FTIR and SEM showed that after biodegradation, samples still contained both building components. Respiration test showed higher O2 consumption and CO2 production comparing to polystyrene which confirmed biodegradability of the accessible starch in copolymer. Based on the obtained results, degradation mechanism is proposed. First step is biodegradation of easily accessible starch followed by dissolution of the poly(methacrylic acid). This mechanism confirmed that biodegradation depends not only on the percentage of grafting, but also on molecular packaging, chains arrangement and the number and types of microorganisms present in the specific types of soils.",
publisher = "Springer Verlag",
journal = "Polymer Bulletin",
title = "Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch",
volume = "76",
pages = "2197-2213",
doi = "10.1007/s00289-018-2484-x"
}

Nikolić, V., Lončarević, B.,& Popović, A. R.. (2018). Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch. in Polymer Bulletin
Springer Verlag., 76, 2197-2213.
https://doi.org/10.1007/s00289-018-2484-x

Nikolić V, Lončarević B, Popović AR. Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch. in Polymer Bulletin. 2018;76:2197-2213.
doi:10.1007/s00289-018-2484-x .

Nikolić, V., Lončarević, Branka, Popović, Aleksandar R., "Biodegradation of copolymer obtained by grafting reaction between methacrylic acid and starch" in Polymer Bulletin, 76 (2018):2197-2213,
https://doi.org/10.1007/s00289-018-2484-x . .

TY  - JOUR
AU  - Relić, Dubravka
AU  - Heberger, Karoly
AU  - Sakan, Sanja
AU  - Skrbic, Biljana
AU  - Popović, Aleksandar R.
AU  - Đorđević, Dragana
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2934
AB  - This study aims to compare three extraction techniques of four sequential element extraction steps from soil and sediment samples that were taken from the location of the Pancevo petrochemical industry (Serbia). Elements were extracted using three different techniques: conventional, microwave and ultrasound extraction. A novel procedure sum of the ranking differences (SRD) - was able to rank the techniques and elements, to see whether this method is a suitable tool to reveal the similarities and dissimilarities in element extraction techniques, provided that a proper ranking reference is available. The concentrations of the following elements Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Si, Sn, Sr, V and Zn were determined through ICP OES. The different efficiencies and recovery values of element concentrations using each of the three extraction techniques were examined by the CRM BCR-701. By using SRD, we obtained a better separation between the different extraction techniques and steps when we rank their differences among the samples while lower separation was obtained according to analysed elements. Appling this method for ordering the elements could be useful for three purposes: (i) to find possible associations among the elements; (ii) to find possible elements that have outlier concentrations or (iii) detect differences in geochemical origin or behaviour of elements. Cross-validation of the SRD values in combination with cluster and principal component analysis revealed the same groups of extraction steps and techniques.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Chemosphere
T1  - Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods
VL  - 198
SP  - 103
EP  - 110
DO  - 10.1016/j.chemosphere.2017.12.200
ER  - 

@article{
author = "Relić, Dubravka and Heberger, Karoly and Sakan, Sanja and Skrbic, Biljana and Popović, Aleksandar R. and Đorđević, Dragana",
year = "2018",
abstract = "This study aims to compare three extraction techniques of four sequential element extraction steps from soil and sediment samples that were taken from the location of the Pancevo petrochemical industry (Serbia). Elements were extracted using three different techniques: conventional, microwave and ultrasound extraction. A novel procedure sum of the ranking differences (SRD) - was able to rank the techniques and elements, to see whether this method is a suitable tool to reveal the similarities and dissimilarities in element extraction techniques, provided that a proper ranking reference is available. The concentrations of the following elements Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Si, Sn, Sr, V and Zn were determined through ICP OES. The different efficiencies and recovery values of element concentrations using each of the three extraction techniques were examined by the CRM BCR-701. By using SRD, we obtained a better separation between the different extraction techniques and steps when we rank their differences among the samples while lower separation was obtained according to analysed elements. Appling this method for ordering the elements could be useful for three purposes: (i) to find possible associations among the elements; (ii) to find possible elements that have outlier concentrations or (iii) detect differences in geochemical origin or behaviour of elements. Cross-validation of the SRD values in combination with cluster and principal component analysis revealed the same groups of extraction steps and techniques.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Chemosphere",
title = "Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods",
volume = "198",
pages = "103-110",
doi = "10.1016/j.chemosphere.2017.12.200"
}

Relić, D., Heberger, K., Sakan, S., Skrbic, B., Popović, A. R.,& Đorđević, D.. (2018). Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods. in Chemosphere
Oxford : Pergamon-Elsevier Science Ltd., 198, 103-110.
https://doi.org/10.1016/j.chemosphere.2017.12.200

Relić D, Heberger K, Sakan S, Skrbic B, Popović AR, Đorđević D. Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods. in Chemosphere. 2018;198:103-110.
doi:10.1016/j.chemosphere.2017.12.200 .

Relić, Dubravka, Heberger, Karoly, Sakan, Sanja, Skrbic, Biljana, Popović, Aleksandar R., Đorđević, Dragana, "Ranking and similarity of conventional, microwave and ultrasound element sequential extraction methods" in Chemosphere, 198 (2018):103-110,
https://doi.org/10.1016/j.chemosphere.2017.12.200 . .