TY  - JOUR
AU  - Lazarević, Nataša
AU  - Adnađević, Borivoj
AU  - Jovanović, Jelena
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/117
AB  - The non-isothermal kinetics of nicotine desorption from precipitated silicon dioxide was investigated. The non-isothermal thermogravimetric curves of nicotine desorption at different heating rates (beta = 5, 10 and 20 K/min) were recorded. The kinetics model of non-isothermal kinetics of nicotine desorption was determined by using the model-fitting and master-plot methods. It was found that non-isothermal nicotine desorption can mathematically describe by the theoretical kinetics model of phase - boundary controlled reaction (contracting volume, i.e., three dimensional shape) - R3. By applying the method of Kissinger and method of invariant kinetic parameters the values of kinetic parameters were determined. It was established that both applied method give almost identical kinetic parameters regardless their theoretical limitations. The dependence of activation energy on the degree of nicotine desorption was determined using the KAS method. It was found that the value of activation energy is independent on the degree of nicotine desorption. The effect of heating mode on the kinetic of nicotine desorption was analyzed. It was established that the type of heating mode (isothermal and non-isothermal) does not influence the mechanism of the formation of the activation complex nor the kinetics model of desorption. The increase in the values of kinetic parameters obtained for non-isothermal heating in comparison to the isothermal ones are explained with the Larsons model of selective transfer of energy. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Thermochimica Acta
T1  - Kinetic analysis of nicotine desorption from silicon dioxide under non-isothermal conditions
VL  - 589
SP  - 100
EP  - 106
DO  - 10.1016/j.tca.2014.05.023
ER  - 

@article{
author = "Lazarević, Nataša and Adnađević, Borivoj and Jovanović, Jelena",
year = "2014",
abstract = "The non-isothermal kinetics of nicotine desorption from precipitated silicon dioxide was investigated. The non-isothermal thermogravimetric curves of nicotine desorption at different heating rates (beta = 5, 10 and 20 K/min) were recorded. The kinetics model of non-isothermal kinetics of nicotine desorption was determined by using the model-fitting and master-plot methods. It was found that non-isothermal nicotine desorption can mathematically describe by the theoretical kinetics model of phase - boundary controlled reaction (contracting volume, i.e., three dimensional shape) - R3. By applying the method of Kissinger and method of invariant kinetic parameters the values of kinetic parameters were determined. It was established that both applied method give almost identical kinetic parameters regardless their theoretical limitations. The dependence of activation energy on the degree of nicotine desorption was determined using the KAS method. It was found that the value of activation energy is independent on the degree of nicotine desorption. The effect of heating mode on the kinetic of nicotine desorption was analyzed. It was established that the type of heating mode (isothermal and non-isothermal) does not influence the mechanism of the formation of the activation complex nor the kinetics model of desorption. The increase in the values of kinetic parameters obtained for non-isothermal heating in comparison to the isothermal ones are explained with the Larsons model of selective transfer of energy. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Thermochimica Acta",
title = "Kinetic analysis of nicotine desorption from silicon dioxide under non-isothermal conditions",
volume = "589",
pages = "100-106",
doi = "10.1016/j.tca.2014.05.023"
}

Lazarević, N., Adnađević, B.,& Jovanović, J.. (2014). Kinetic analysis of nicotine desorption from silicon dioxide under non-isothermal conditions. in Thermochimica Acta, 589, 100-106.
https://doi.org/10.1016/j.tca.2014.05.023

Lazarević N, Adnađević B, Jovanović J. Kinetic analysis of nicotine desorption from silicon dioxide under non-isothermal conditions. in Thermochimica Acta. 2014;589:100-106.
doi:10.1016/j.tca.2014.05.023 .

Lazarević, Nataša, Adnađević, Borivoj, Jovanović, Jelena, "Kinetic analysis of nicotine desorption from silicon dioxide under non-isothermal conditions" in Thermochimica Acta, 589 (2014):100-106,
https://doi.org/10.1016/j.tca.2014.05.023 . .

TY  - CONF
AU  - Lazarević, Nataša
AU  - Jovanović, Jelena
AU  - Adnađević, Borivoj
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9199
AB  - The poly(acrylic acid) hydrogel (PAA) has been suggested as adsorbent
material to treat cobalt-60 in radioactive liquid waste. The kinetics of
isothermal adsorption of cobalt ions from an aqueous solution onto PAA
hydrogel was investigated in the temperature range from 298K to 315 K.
The kinetic model of Co2+ adsorption [1-(1-α)1/3]2=kt, was established by
using the model-fitting method. The kinetic parameters of Co2+ adsorption
(Ea = 41 kJ mol-1, ln [A/min-1]=12) were determined. It was found that
cobalt adsorption was kinetically controlled process which is determined by
the rate of three-dimensional diffusion Co2+ ions (D3).
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - Research on treatment of liquid radioactive waste containing cobalt by adsorption on poly(acrilic acid) hydrogel
VL  - G-02-P
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9199
ER  - 

@conference{
author = "Lazarević, Nataša and Jovanović, Jelena and Adnađević, Borivoj",
year = "2014",
abstract = "The poly(acrylic acid) hydrogel (PAA) has been suggested as adsorbent
material to treat cobalt-60 in radioactive liquid waste. The kinetics of
isothermal adsorption of cobalt ions from an aqueous solution onto PAA
hydrogel was investigated in the temperature range from 298K to 315 K.
The kinetic model of Co2+ adsorption [1-(1-α)1/3]2=kt, was established by
using the model-fitting method. The kinetic parameters of Co2+ adsorption
(Ea = 41 kJ mol-1, ln [A/min-1]=12) were determined. It was found that
cobalt adsorption was kinetically controlled process which is determined by
the rate of three-dimensional diffusion Co2+ ions (D3).",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "Research on treatment of liquid radioactive waste containing cobalt by adsorption on poly(acrilic acid) hydrogel",
volume = "G-02-P",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9199"
}

Lazarević, N., Jovanović, J.,& Adnađević, B.. (2014). Research on treatment of liquid radioactive waste containing cobalt by adsorption on poly(acrilic acid) hydrogel. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., G-02-P.
https://hdl.handle.net/21.15107/rcub_vinar_9199

Lazarević N, Jovanović J, Adnađević B. Research on treatment of liquid radioactive waste containing cobalt by adsorption on poly(acrilic acid) hydrogel. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;G-02-P.
https://hdl.handle.net/21.15107/rcub_vinar_9199 .

Lazarević, Nataša, Jovanović, Jelena, Adnađević, Borivoj, "Research on treatment of liquid radioactive waste containing cobalt by adsorption on poly(acrilic acid) hydrogel" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, G-02-P (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9199 .

TY  - JOUR
AU  - Adnađević, Borivoj
AU  - Tasić, Gvozden S.
AU  - Jovanović, Jelena
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4207
AB  - The kinetic of non-isothermal dehydration of equilibrium swollen poly(acrylic acid-co-methacrylic acid) hydrogel (PAM) has been investigated. Thermogravimetric and conversion dehydration curves were recorded at various heating rates 5-30 K min(-1). The conversion dehydration curves at all investigated temperatures can be mathematically described using the logistic regression function in entire. It was found that activation energy complexly changes with the increasing dehydration degree. Physical meaning of the parameters of logistic function (band w) is given. It was established that, during the dehydration, changes in the fluctuating hydrogel structure occur, and that limiting step on the kinetics of hydrogel dehydration have rate of structural rearrangement of hydrogel (actual relaxation mechanism). A procedure for determining the dependence of effective activation energy on temperature and dehydration degree, based on logistic function, is exposed. Possible explanation for the existence of negative values of activation energy in the certain range of temperature, is given. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Thermochimica Acta
T1  - Kinetic of non-isothermal dehydration of equilibrium swollen poly(acrylic acid-co-methacrylic acid) hydrogel
VL  - 512
IS  - 1-2
SP  - 157
EP  - 162
DO  - 10.1016/j.tca.2010.09.019
ER  - 

@article{
author = "Adnađević, Borivoj and Tasić, Gvozden S. and Jovanović, Jelena",
year = "2011",
abstract = "The kinetic of non-isothermal dehydration of equilibrium swollen poly(acrylic acid-co-methacrylic acid) hydrogel (PAM) has been investigated. Thermogravimetric and conversion dehydration curves were recorded at various heating rates 5-30 K min(-1). The conversion dehydration curves at all investigated temperatures can be mathematically described using the logistic regression function in entire. It was found that activation energy complexly changes with the increasing dehydration degree. Physical meaning of the parameters of logistic function (band w) is given. It was established that, during the dehydration, changes in the fluctuating hydrogel structure occur, and that limiting step on the kinetics of hydrogel dehydration have rate of structural rearrangement of hydrogel (actual relaxation mechanism). A procedure for determining the dependence of effective activation energy on temperature and dehydration degree, based on logistic function, is exposed. Possible explanation for the existence of negative values of activation energy in the certain range of temperature, is given. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Thermochimica Acta",
title = "Kinetic of non-isothermal dehydration of equilibrium swollen poly(acrylic acid-co-methacrylic acid) hydrogel",
volume = "512",
number = "1-2",
pages = "157-162",
doi = "10.1016/j.tca.2010.09.019"
}

Adnađević, B., Tasić, G. S.,& Jovanović, J.. (2011). Kinetic of non-isothermal dehydration of equilibrium swollen poly(acrylic acid-co-methacrylic acid) hydrogel. in Thermochimica Acta, 512(1-2), 157-162.
https://doi.org/10.1016/j.tca.2010.09.019

Adnađević B, Tasić GS, Jovanović J. Kinetic of non-isothermal dehydration of equilibrium swollen poly(acrylic acid-co-methacrylic acid) hydrogel. in Thermochimica Acta. 2011;512(1-2):157-162.
doi:10.1016/j.tca.2010.09.019 .

Adnađević, Borivoj, Tasić, Gvozden S., Jovanović, Jelena, "Kinetic of non-isothermal dehydration of equilibrium swollen poly(acrylic acid-co-methacrylic acid) hydrogel" in Thermochimica Acta, 512, no. 1-2 (2011):157-162,
https://doi.org/10.1016/j.tca.2010.09.019 . .

TY  - JOUR
AU  - Adnađević, Borivoj
AU  - Jovanović, Jelena
AU  - Lazarević, Nataša
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4146
AB  - The isothermal kinetic of the release of nicotine from a poly(acrylic acid) (PAA) hydrogel was investigated at temperature range from 26 degrees C to 45 degrees C. Specific shape parameters of the kinetic curves, the period of linearity and saturation time were determined. The change in the specific shape parameters of the kinetic curves with temperature and the kinetic parameters of release of nicotine E(a) and ln A were determined. By applying the model fitting method it was established that the kinetic model of release of nicotine from the PAA hydrogel was [1 - (1 - alpha)(1/3)] = k(M)t. The limiting stage of the kinetics release of nicotine was found to be the contracting volume of the interaction interface. The distribution function of the activation energy was determined and the most probable values of activation energies of 25.5 kJ mol(-1) and 35 kJ mol(-1) were obtained. Energetically heterogeneity of the interaction interface was explained by the existence of the two different modes of bonding the nicotine molecules onto the hydrogel network by hydrogen bond and electrostatic forces. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 1805-1812, 2011
T2  - Journal of Applied Polymer Science
T1  - Kinetics Study of Isothermal Nicotine Release from Poly(acrylic acid) Hydrogel
VL  - 119
IS  - 3
SP  - 1805
EP  - 1812
DO  - 10.1002/app.32869
ER  - 

@article{
author = "Adnađević, Borivoj and Jovanović, Jelena and Lazarević, Nataša",
year = "2011",
abstract = "The isothermal kinetic of the release of nicotine from a poly(acrylic acid) (PAA) hydrogel was investigated at temperature range from 26 degrees C to 45 degrees C. Specific shape parameters of the kinetic curves, the period of linearity and saturation time were determined. The change in the specific shape parameters of the kinetic curves with temperature and the kinetic parameters of release of nicotine E(a) and ln A were determined. By applying the model fitting method it was established that the kinetic model of release of nicotine from the PAA hydrogel was [1 - (1 - alpha)(1/3)] = k(M)t. The limiting stage of the kinetics release of nicotine was found to be the contracting volume of the interaction interface. The distribution function of the activation energy was determined and the most probable values of activation energies of 25.5 kJ mol(-1) and 35 kJ mol(-1) were obtained. Energetically heterogeneity of the interaction interface was explained by the existence of the two different modes of bonding the nicotine molecules onto the hydrogel network by hydrogen bond and electrostatic forces. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 1805-1812, 2011",
journal = "Journal of Applied Polymer Science",
title = "Kinetics Study of Isothermal Nicotine Release from Poly(acrylic acid) Hydrogel",
volume = "119",
number = "3",
pages = "1805-1812",
doi = "10.1002/app.32869"
}

Adnađević, B., Jovanović, J.,& Lazarević, N.. (2011). Kinetics Study of Isothermal Nicotine Release from Poly(acrylic acid) Hydrogel. in Journal of Applied Polymer Science, 119(3), 1805-1812.
https://doi.org/10.1002/app.32869

Adnađević B, Jovanović J, Lazarević N. Kinetics Study of Isothermal Nicotine Release from Poly(acrylic acid) Hydrogel. in Journal of Applied Polymer Science. 2011;119(3):1805-1812.
doi:10.1002/app.32869 .

Adnađević, Borivoj, Jovanović, Jelena, Lazarević, Nataša, "Kinetics Study of Isothermal Nicotine Release from Poly(acrylic acid) Hydrogel" in Journal of Applied Polymer Science, 119, no. 3 (2011):1805-1812,
https://doi.org/10.1002/app.32869 . .

TY  - JOUR
AU  - Lazarević, Nataša
AU  - Adnađević, Borivoj
AU  - Jovanović, Jelena
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4333
AB  - The isothermal adsorption of nicotine from an aqueous solution onto zeolite type USY was investigated. The adsorption isotherms of nicotine onto the zeolite at different temperatures ranging from 298 to 322K were determined. It was found that the adsorption isotherms can be described by the model of Freundlich adsorption isotherm. Based on the adsorption isotherms the changes of adsorption heat, free energy and entropy with adsorption degree were determined. The determined decrease of adsorption heat with adsorption degree can be explained by the presence of the adsorption centers of different energy and concentration on interface of zeolite-nicotine solution. It was found that the probability function of density distribution of the heat of adsorption (DDF) has exponential form. It was concluded that the possibility of fitting the adsorption isotherms of nicotine onto the zeolite by Freundlich adsorption isotherm was a direct consequence of that. The determined increase in entropy with the increase in adsorption degree can be explained with the change of phase state of adsorbed nicotine. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Adsorption of nicotine from aqueous solution onto hydrophobic zeolite type USY
VL  - 257
IS  - 18
SP  - 8017
EP  - 8023
DO  - 10.1016/j.apsusc.2011.04.076
ER  - 

@article{
author = "Lazarević, Nataša and Adnađević, Borivoj and Jovanović, Jelena",
year = "2011",
abstract = "The isothermal adsorption of nicotine from an aqueous solution onto zeolite type USY was investigated. The adsorption isotherms of nicotine onto the zeolite at different temperatures ranging from 298 to 322K were determined. It was found that the adsorption isotherms can be described by the model of Freundlich adsorption isotherm. Based on the adsorption isotherms the changes of adsorption heat, free energy and entropy with adsorption degree were determined. The determined decrease of adsorption heat with adsorption degree can be explained by the presence of the adsorption centers of different energy and concentration on interface of zeolite-nicotine solution. It was found that the probability function of density distribution of the heat of adsorption (DDF) has exponential form. It was concluded that the possibility of fitting the adsorption isotherms of nicotine onto the zeolite by Freundlich adsorption isotherm was a direct consequence of that. The determined increase in entropy with the increase in adsorption degree can be explained with the change of phase state of adsorbed nicotine. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Adsorption of nicotine from aqueous solution onto hydrophobic zeolite type USY",
volume = "257",
number = "18",
pages = "8017-8023",
doi = "10.1016/j.apsusc.2011.04.076"
}

Lazarević, N., Adnađević, B.,& Jovanović, J.. (2011). Adsorption of nicotine from aqueous solution onto hydrophobic zeolite type USY. in Applied Surface Science, 257(18), 8017-8023.
https://doi.org/10.1016/j.apsusc.2011.04.076

Lazarević N, Adnađević B, Jovanović J. Adsorption of nicotine from aqueous solution onto hydrophobic zeolite type USY. in Applied Surface Science. 2011;257(18):8017-8023.
doi:10.1016/j.apsusc.2011.04.076 .

Lazarević, Nataša, Adnađević, Borivoj, Jovanović, Jelena, "Adsorption of nicotine from aqueous solution onto hydrophobic zeolite type USY" in Applied Surface Science, 257, no. 18 (2011):8017-8023,
https://doi.org/10.1016/j.apsusc.2011.04.076 . .

TY  - JOUR
AU  - Cvijović, Đurđe
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4178
AB  - A general transformation involving generalized hypergeometric functions has been recently found by Rathie and Rakha using simple arguments and exploiting Gausss summation theorem. In this sequel to the work of Rathie and Rakha, a new hypergeometric transformation formula is derived by their method and by appealing to Gausss second summation theorem. In addition, it is shown that the method fails to give similar hypergeometric transformations in the cases of the classical summation theorems of Kummer, Bailey, Watson and Dixon. (C) 2010 Elsevier Ltd. All rights reserved.
T2  - Applied Mathematics Letters
T1  - A new hypergeometric transformation of the Rathie-Rakha type
VL  - 24
IS  - 3
SP  - 340
EP  - 343
DO  - 10.1016/j.aml.2010.10.019
ER  - 

@article{
author = "Cvijović, Đurđe",
year = "2011",
abstract = "A general transformation involving generalized hypergeometric functions has been recently found by Rathie and Rakha using simple arguments and exploiting Gausss summation theorem. In this sequel to the work of Rathie and Rakha, a new hypergeometric transformation formula is derived by their method and by appealing to Gausss second summation theorem. In addition, it is shown that the method fails to give similar hypergeometric transformations in the cases of the classical summation theorems of Kummer, Bailey, Watson and Dixon. (C) 2010 Elsevier Ltd. All rights reserved.",
journal = "Applied Mathematics Letters",
title = "A new hypergeometric transformation of the Rathie-Rakha type",
volume = "24",
number = "3",
pages = "340-343",
doi = "10.1016/j.aml.2010.10.019"
}

Cvijović, Đ.. (2011). A new hypergeometric transformation of the Rathie-Rakha type. in Applied Mathematics Letters, 24(3), 340-343.
https://doi.org/10.1016/j.aml.2010.10.019

Cvijović Đ. A new hypergeometric transformation of the Rathie-Rakha type. in Applied Mathematics Letters. 2011;24(3):340-343.
doi:10.1016/j.aml.2010.10.019 .

Cvijović, Đurđe, "A new hypergeometric transformation of the Rathie-Rakha type" in Applied Mathematics Letters, 24, no. 3 (2011):340-343,
https://doi.org/10.1016/j.aml.2010.10.019 . .

TY  - JOUR
AU  - Adnađević, Borivoj
AU  - Lazarević, Nataša
AU  - Jovanović, Jelena
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4109
AB  - The isothermal kinetics of nicotine desorption from silicon dioxide (SiO(2)) was investigated. The isothermal thermogravimetric curves of nicotine at temperatures of 115 degrees C, 130 degrees C and 152 degrees C were recorded. The kinetic parameters (E(a), lnA) of desorption of nicotine were calculated using various methods (stationary point, model constants and differential isoconversion method). By applying the model-fitting method, it was found that the kinetic model of nicotine desorption from silicon dioxide was a phase boundary controlled reaction (contracting volume). The values of the kinetic parameters, E(a,alpha) and lnA(alpha), complexly change with changing degree of desorption and a compensation effect exists. A new mechanism of activation for the desorption of the absorbed molecules of nicotine was suggested in agreement with model of selective energy transfer. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - A study of the kinetics of isothermal nicotine desorption from silicon dioxide
VL  - 257
IS  - 5
SP  - 1425
EP  - 1430
DO  - 10.1016/j.apsusc.2010.08.055
ER  - 

@article{
author = "Adnađević, Borivoj and Lazarević, Nataša and Jovanović, Jelena",
year = "2010",
abstract = "The isothermal kinetics of nicotine desorption from silicon dioxide (SiO(2)) was investigated. The isothermal thermogravimetric curves of nicotine at temperatures of 115 degrees C, 130 degrees C and 152 degrees C were recorded. The kinetic parameters (E(a), lnA) of desorption of nicotine were calculated using various methods (stationary point, model constants and differential isoconversion method). By applying the model-fitting method, it was found that the kinetic model of nicotine desorption from silicon dioxide was a phase boundary controlled reaction (contracting volume). The values of the kinetic parameters, E(a,alpha) and lnA(alpha), complexly change with changing degree of desorption and a compensation effect exists. A new mechanism of activation for the desorption of the absorbed molecules of nicotine was suggested in agreement with model of selective energy transfer. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "A study of the kinetics of isothermal nicotine desorption from silicon dioxide",
volume = "257",
number = "5",
pages = "1425-1430",
doi = "10.1016/j.apsusc.2010.08.055"
}

Adnađević, B., Lazarević, N.,& Jovanović, J.. (2010). A study of the kinetics of isothermal nicotine desorption from silicon dioxide. in Applied Surface Science, 257(5), 1425-1430.
https://doi.org/10.1016/j.apsusc.2010.08.055

Adnađević B, Lazarević N, Jovanović J. A study of the kinetics of isothermal nicotine desorption from silicon dioxide. in Applied Surface Science. 2010;257(5):1425-1430.
doi:10.1016/j.apsusc.2010.08.055 .

Adnađević, Borivoj, Lazarević, Nataša, Jovanović, Jelena, "A study of the kinetics of isothermal nicotine desorption from silicon dioxide" in Applied Surface Science, 257, no. 5 (2010):1425-1430,
https://doi.org/10.1016/j.apsusc.2010.08.055 . .

TY  - CONF
AU  - Marković, Vladimir
AU  - Jelić, Smiljana
AU  - Vukojević, Vesna
AU  - Kolar-Anić, Ljiljana
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9294
AB  - Glucocorticoids, the end products of the Hypothalamic-Pituitary-Adrenal (HPA)
axis, are widely used as anti-inflammatory and immunosuppressive drugs.
However, the feed-back effects of externally induced glucocorticoids on the HPA
axis activity remain widely unknown. In this study, we use numerical simulations
to investigate changes in the HPA axis activity caused by externally introduced
cortisol. We emulate the basal HPA activity using a stoichiometric model of the
HPA axis, and perturb its dynamics by abruptly changing cortisol levels during the
course of numerical integration, thereby mimicking cortisol increase under
treatment. Our study shows that the HPA axis activity is susceptible to
perturbations by cortisol and that external cortisol pulses elicit different responses,
depending on the dose and the time of cortisol introduction.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
T1  - Modelling the hypothalamic-pituitaryadrenal (hpa) axis response to external perturbations with cortisol
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9294
ER  - 

@conference{
author = "Marković, Vladimir and Jelić, Smiljana and Vukojević, Vesna and Kolar-Anić, Ljiljana",
year = "2010",
abstract = "Glucocorticoids, the end products of the Hypothalamic-Pituitary-Adrenal (HPA)
axis, are widely used as anti-inflammatory and immunosuppressive drugs.
However, the feed-back effects of externally induced glucocorticoids on the HPA
axis activity remain widely unknown. In this study, we use numerical simulations
to investigate changes in the HPA axis activity caused by externally introduced
cortisol. We emulate the basal HPA activity using a stoichiometric model of the
HPA axis, and perturb its dynamics by abruptly changing cortisol levels during the
course of numerical integration, thereby mimicking cortisol increase under
treatment. Our study shows that the HPA axis activity is susceptible to
perturbations by cortisol and that external cortisol pulses elicit different responses,
depending on the dose and the time of cortisol introduction.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry",
title = "Modelling the hypothalamic-pituitaryadrenal (hpa) axis response to external perturbations with cortisol",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9294"
}

Marković, V., Jelić, S., Vukojević, V.,& Kolar-Anić, L.. (2010). Modelling the hypothalamic-pituitaryadrenal (hpa) axis response to external perturbations with cortisol. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia..
https://hdl.handle.net/21.15107/rcub_vinar_9294

Marković V, Jelić S, Vukojević V, Kolar-Anić L. Modelling the hypothalamic-pituitaryadrenal (hpa) axis response to external perturbations with cortisol. in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_9294 .

Marković, Vladimir, Jelić, Smiljana, Vukojević, Vesna, Kolar-Anić, Ljiljana, "Modelling the hypothalamic-pituitaryadrenal (hpa) axis response to external perturbations with cortisol" in Physical chemistry 2010 : 10th international conference on fundamental and applied aspects of physical chemistry (2010),
https://hdl.handle.net/21.15107/rcub_vinar_9294 .

TY  - JOUR
AU  - Cvijović, Đurđe
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3778
AB  - Recently, a half-dozen remarkably general families of the finite trigonometric sums were summed in closed-form by choosing a particularly convenient integration contour and making use of the calculus of residues. In this sequel, we show that this procedure can be further extended and we find the summation formulae, in terms of the higher order Bernoulli polynomials and the ordinary Bernoulli polynomials, for four general families of the finite cotangent sums. (C) 2009 Elsevier Inc. All rights reserved.
T2  - Applied Mathematics and Computation
T1  - Summation formulae for finite cotangent sums
VL  - 215
IS  - 3
SP  - 1135
EP  - 1140
DO  - 10.1016/j.amc.2009.06.053
ER  - 

@article{
author = "Cvijović, Đurđe",
year = "2009",
abstract = "Recently, a half-dozen remarkably general families of the finite trigonometric sums were summed in closed-form by choosing a particularly convenient integration contour and making use of the calculus of residues. In this sequel, we show that this procedure can be further extended and we find the summation formulae, in terms of the higher order Bernoulli polynomials and the ordinary Bernoulli polynomials, for four general families of the finite cotangent sums. (C) 2009 Elsevier Inc. All rights reserved.",
journal = "Applied Mathematics and Computation",
title = "Summation formulae for finite cotangent sums",
volume = "215",
number = "3",
pages = "1135-1140",
doi = "10.1016/j.amc.2009.06.053"
}

Cvijović, Đ.. (2009). Summation formulae for finite cotangent sums. in Applied Mathematics and Computation, 215(3), 1135-1140.
https://doi.org/10.1016/j.amc.2009.06.053

Cvijović Đ. Summation formulae for finite cotangent sums. in Applied Mathematics and Computation. 2009;215(3):1135-1140.
doi:10.1016/j.amc.2009.06.053 .

Cvijović, Đurđe, "Summation formulae for finite cotangent sums" in Applied Mathematics and Computation, 215, no. 3 (2009):1135-1140,
https://doi.org/10.1016/j.amc.2009.06.053 . .

TY  - JOUR
AU  - Cvijović, Đurđe
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3875
AB  - We find simple explicit closed-form formulas for the Fermi-Dirac function F(-n)(z) and Bose-Einstein function B(-n)(z) for arbitrary n is an element of N. The obtained formulas involve the higher tangent numbers defined by Carlitz and Scoville. We present some examples and direct consequences of applying the main results.
T2  - Theoretical and Mathematical Physics
T1  - Fermi-Dirac and Bose-Einstein Functions of Negative Integer Order
VL  - 161
IS  - 3
SP  - 1663
EP  - 1668
DO  - 10.1007/s11232-009-0153-9
ER  - 

@article{
author = "Cvijović, Đurđe",
year = "2009",
abstract = "We find simple explicit closed-form formulas for the Fermi-Dirac function F(-n)(z) and Bose-Einstein function B(-n)(z) for arbitrary n is an element of N. The obtained formulas involve the higher tangent numbers defined by Carlitz and Scoville. We present some examples and direct consequences of applying the main results.",
journal = "Theoretical and Mathematical Physics",
title = "Fermi-Dirac and Bose-Einstein Functions of Negative Integer Order",
volume = "161",
number = "3",
pages = "1663-1668",
doi = "10.1007/s11232-009-0153-9"
}

Cvijović, Đ.. (2009). Fermi-Dirac and Bose-Einstein Functions of Negative Integer Order. in Theoretical and Mathematical Physics, 161(3), 1663-1668.
https://doi.org/10.1007/s11232-009-0153-9

Cvijović Đ. Fermi-Dirac and Bose-Einstein Functions of Negative Integer Order. in Theoretical and Mathematical Physics. 2009;161(3):1663-1668.
doi:10.1007/s11232-009-0153-9 .

Cvijović, Đurđe, "Fermi-Dirac and Bose-Einstein Functions of Negative Integer Order" in Theoretical and Mathematical Physics, 161, no. 3 (2009):1663-1668,
https://doi.org/10.1007/s11232-009-0153-9 . .

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Kolar-Anić, Ljiljana
AU  - Smičiklas, Ivana D.
AU  - Dimović, Slavko
AU  - Arandelovic, Dragana
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3826
AB  - The non-isothermal combustion of animal bones was investigated by simultaneous thermogravimetric and differential thermal analysis (TG-DTA), in the temperature range Delta T = 20-650 degrees C. The full kinetic triplet (A, E(alpha) and f(alpha)) for the investigated process was established, using different calculation procedures: isoconversional (model-free) and the Kissingers methods. The non-isothermal process occured through three reaction stages (I, II and III). Stage I was described by a reaction model, which contains two competing reactions with different values of the apparent activation energy. The autocatalytic two-parameter Sestak-Berggren (SB) model (conversion function f(alpha) = alpha(0.62)(1-alpha)(3.22)). best described the second (II) reaction stage of bone samples. This stage, which corresponds to the degradation process of organic components (mainly collagen), exhibited the autocatalytic branching effect, with increasing complexity. Stage III, attributed to the combustion process of organic components, was best described by an n-th reaction order model with parameter n = 1.5 (f(alpha) = (1 - alpha()1.5). The appearance of compensation effect clearly showed the existence of three characteristic branches attributed to the dehydration, degradation and combustion processes, respectively, without noticable changes in mineral phase. The isothermal predictions of bone combustion process, at four different temperatures (T(iso) = 200, 300, 400 and 450 degrees C) were established in this paper. It was concluded that the shapes of the isothermal conversion curves at lower temperatures (200-300 degrees C) were similar, whereas became more complex with further temperature increase due to organic phase degradation. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Thermochimica Acta
T1  - The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis
VL  - 495
IS  - 1-2
SP  - 129
EP  - 138
DO  - 10.1016/j.tca.2009.06.016
ER  - 

@article{
author = "Janković, Bojan Ž. and Kolar-Anić, Ljiljana and Smičiklas, Ivana D. and Dimović, Slavko and Arandelovic, Dragana",
year = "2009",
abstract = "The non-isothermal combustion of animal bones was investigated by simultaneous thermogravimetric and differential thermal analysis (TG-DTA), in the temperature range Delta T = 20-650 degrees C. The full kinetic triplet (A, E(alpha) and f(alpha)) for the investigated process was established, using different calculation procedures: isoconversional (model-free) and the Kissingers methods. The non-isothermal process occured through three reaction stages (I, II and III). Stage I was described by a reaction model, which contains two competing reactions with different values of the apparent activation energy. The autocatalytic two-parameter Sestak-Berggren (SB) model (conversion function f(alpha) = alpha(0.62)(1-alpha)(3.22)). best described the second (II) reaction stage of bone samples. This stage, which corresponds to the degradation process of organic components (mainly collagen), exhibited the autocatalytic branching effect, with increasing complexity. Stage III, attributed to the combustion process of organic components, was best described by an n-th reaction order model with parameter n = 1.5 (f(alpha) = (1 - alpha()1.5). The appearance of compensation effect clearly showed the existence of three characteristic branches attributed to the dehydration, degradation and combustion processes, respectively, without noticable changes in mineral phase. The isothermal predictions of bone combustion process, at four different temperatures (T(iso) = 200, 300, 400 and 450 degrees C) were established in this paper. It was concluded that the shapes of the isothermal conversion curves at lower temperatures (200-300 degrees C) were similar, whereas became more complex with further temperature increase due to organic phase degradation. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Thermochimica Acta",
title = "The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis",
volume = "495",
number = "1-2",
pages = "129-138",
doi = "10.1016/j.tca.2009.06.016"
}

Janković, B. Ž., Kolar-Anić, L., Smičiklas, I. D., Dimović, S.,& Arandelovic, D.. (2009). The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis. in Thermochimica Acta, 495(1-2), 129-138.
https://doi.org/10.1016/j.tca.2009.06.016

Janković BŽ, Kolar-Anić L, Smičiklas ID, Dimović S, Arandelovic D. The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis. in Thermochimica Acta. 2009;495(1-2):129-138.
doi:10.1016/j.tca.2009.06.016 .

Janković, Bojan Ž., Kolar-Anić, Ljiljana, Smičiklas, Ivana D., Dimović, Slavko, Arandelovic, Dragana, "The non-isothermal thermogravimetric tests of animal bones combustion. Part. I. Kinetic analysis" in Thermochimica Acta, 495, no. 1-2 (2009):129-138,
https://doi.org/10.1016/j.tca.2009.06.016 . .

TY  - CONF
AU  - Pavelkić, Vesna M.
AU  - Gopčević, Kristina
AU  - Krstić, Danijela Z.
AU  - Ilić, Milan
AU  - Pavelkić, M.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9371
AB  - The in vitro effect of Al3+ ions on pepsin activity at pH 2, via kinetic parameters was evaluated. Kinetic study showed that Al3+ ions increase the maximal velocity (Vmax) rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated that aluminium was a non-essential activator of partial non-competitive type.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
T1  - Non-essential activation of pepsin by Al3+ “in vitro”
VL  - 1
SP  - 393
EP  - 395
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9371
ER  - 

@conference{
author = "Pavelkić, Vesna M. and Gopčević, Kristina and Krstić, Danijela Z. and Ilić, Milan and Pavelkić, M.",
year = "2008",
abstract = "The in vitro effect of Al3+ ions on pepsin activity at pH 2, via kinetic parameters was evaluated. Kinetic study showed that Al3+ ions increase the maximal velocity (Vmax) rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated that aluminium was a non-essential activator of partial non-competitive type.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry",
title = "Non-essential activation of pepsin by Al3+ “in vitro”",
volume = "1",
pages = "393-395",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9371"
}

Pavelkić, V. M., Gopčević, K., Krstić, D. Z., Ilić, M.,& Pavelkić, M.. (2008). Non-essential activation of pepsin by Al3+ “in vitro”. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 393-395.
https://hdl.handle.net/21.15107/rcub_vinar_9371

Pavelkić VM, Gopčević K, Krstić DZ, Ilić M, Pavelkić M. Non-essential activation of pepsin by Al3+ “in vitro”. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry. 2008;1:393-395.
https://hdl.handle.net/21.15107/rcub_vinar_9371 .

Pavelkić, Vesna M., Gopčević, Kristina, Krstić, Danijela Z., Ilić, Milan, Pavelkić, M., "Non-essential activation of pepsin by Al3+ “in vitro”" in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry, 1 (2008):393-395,
https://hdl.handle.net/21.15107/rcub_vinar_9371 .

TY  - JOUR
AU  - Pavelkić, Vesna M.
AU  - Gopčević, Kristina
AU  - Krstić, Danijela Z.
AU  - Ilić Marija A. 
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3566
AB  - The in vitro effect of Al3+ ions in the concentration range 1.710-6M-8.710-3M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3+ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3+ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated that aluminium was a non-essential activator of partial non-competitive type. The values of the equilibrium constants KS and KmA for dissociation of corresponding complexes were evaluated as 0.9040.083mM and 8.560.51M, respectively. Dissociation constant KA, of activator from enzyme-activator complex calculated via kinetic and direct measurement of Al3+ binding data, as well as activation constant A50, the activator concentration that gives a rate equal to half at a saturating concentration of activator, were found to be 8.820.90M, 8.390.76M, and 8.050.48M respectively. Native PAGE electrophoresis shows the decrease in electrophoretic mobility of pepsin and confirms modification of the electric charge and conformational changes of pepsin caused by bound Al3+ on the pepsin molecule. Al3+ induced conformational changes of pepsin were verified by UV-VIS and IR spectra. Moreover, the absence of conformational changes in the haemoglobin molecule in the presence of Al3+ ions confirms that the obtained activation is a consequence of conformational changes caused only in the pepsin molecule.
T2  - Journal of Enzyme Inhibition and Medicinal Chemistry
T1  - The influence of Al3+ion on porcine pepsin activity in vitro
VL  - 23
IS  - 6
SP  - 1002
EP  - 1010
DO  - 10.1080/14756360701841095
ER  - 

@article{
author = "Pavelkić, Vesna M. and Gopčević, Kristina and Krstić, Danijela Z. and Ilić Marija A. ",
year = "2008",
abstract = "The in vitro effect of Al3+ ions in the concentration range 1.710-6M-8.710-3M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3+ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3+ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated that aluminium was a non-essential activator of partial non-competitive type. The values of the equilibrium constants KS and KmA for dissociation of corresponding complexes were evaluated as 0.9040.083mM and 8.560.51M, respectively. Dissociation constant KA, of activator from enzyme-activator complex calculated via kinetic and direct measurement of Al3+ binding data, as well as activation constant A50, the activator concentration that gives a rate equal to half at a saturating concentration of activator, were found to be 8.820.90M, 8.390.76M, and 8.050.48M respectively. Native PAGE electrophoresis shows the decrease in electrophoretic mobility of pepsin and confirms modification of the electric charge and conformational changes of pepsin caused by bound Al3+ on the pepsin molecule. Al3+ induced conformational changes of pepsin were verified by UV-VIS and IR spectra. Moreover, the absence of conformational changes in the haemoglobin molecule in the presence of Al3+ ions confirms that the obtained activation is a consequence of conformational changes caused only in the pepsin molecule.",
journal = "Journal of Enzyme Inhibition and Medicinal Chemistry",
title = "The influence of Al3+ion on porcine pepsin activity in vitro",
volume = "23",
number = "6",
pages = "1002-1010",
doi = "10.1080/14756360701841095"
}

Pavelkić, V. M., Gopčević, K., Krstić, D. Z.,& Ilić Marija A. . (2008). The influence of Al3+ion on porcine pepsin activity in vitro. in Journal of Enzyme Inhibition and Medicinal Chemistry, 23(6), 1002-1010.
https://doi.org/10.1080/14756360701841095

Pavelkić VM, Gopčević K, Krstić DZ, Ilić Marija A. . The influence of Al3+ion on porcine pepsin activity in vitro. in Journal of Enzyme Inhibition and Medicinal Chemistry. 2008;23(6):1002-1010.
doi:10.1080/14756360701841095 .

Pavelkić, Vesna M., Gopčević, Kristina, Krstić, Danijela Z., Ilić Marija A. , "The influence of Al3+ion on porcine pepsin activity in vitro" in Journal of Enzyme Inhibition and Medicinal Chemistry, 23, no. 6 (2008):1002-1010,
https://doi.org/10.1080/14756360701841095 . .

TY  - JOUR
AU  - Stojić, Dragica Lj.
AU  - Grozdić, Tomislav D.
AU  - Umićević, Ana
AU  - Maksić, Aleksandar
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3553
AB  - Faraday efficiencies and energy consumptions of a small commercial proton exchange membrane (PEM) and an alkaline electrolyzer designed at our laboratory and equipped with different cathode materials were determined. Our experimental data indicate that the alkaline electrolyzer has a higher Faraday efficiency than the PEM electrolyzer, but, on the other hand, less energy is required for the PEM electrolyzer compared with the alkaline one. The results are discussed with regard to the special advantages of electrolyzers of both types.
T2  - Russian Journal of Physical Chemistry A
T1  - A Comparison of Alkaline and Proton Exchange Membrane Electrolyzers
VL  - 82
IS  - 11
SP  - 1958
EP  - 1960
DO  - 10.1134/S0036024408110289
ER  - 

@article{
author = "Stojić, Dragica Lj. and Grozdić, Tomislav D. and Umićević, Ana and Maksić, Aleksandar",
year = "2008",
abstract = "Faraday efficiencies and energy consumptions of a small commercial proton exchange membrane (PEM) and an alkaline electrolyzer designed at our laboratory and equipped with different cathode materials were determined. Our experimental data indicate that the alkaline electrolyzer has a higher Faraday efficiency than the PEM electrolyzer, but, on the other hand, less energy is required for the PEM electrolyzer compared with the alkaline one. The results are discussed with regard to the special advantages of electrolyzers of both types.",
journal = "Russian Journal of Physical Chemistry A",
title = "A Comparison of Alkaline and Proton Exchange Membrane Electrolyzers",
volume = "82",
number = "11",
pages = "1958-1960",
doi = "10.1134/S0036024408110289"
}

Stojić, D. Lj., Grozdić, T. D., Umićević, A.,& Maksić, A.. (2008). A Comparison of Alkaline and Proton Exchange Membrane Electrolyzers. in Russian Journal of Physical Chemistry A, 82(11), 1958-1960.
https://doi.org/10.1134/S0036024408110289

Stojić DL, Grozdić TD, Umićević A, Maksić A. A Comparison of Alkaline and Proton Exchange Membrane Electrolyzers. in Russian Journal of Physical Chemistry A. 2008;82(11):1958-1960.
doi:10.1134/S0036024408110289 .

Stojić, Dragica Lj., Grozdić, Tomislav D., Umićević, Ana, Maksić, Aleksandar, "A Comparison of Alkaline and Proton Exchange Membrane Electrolyzers" in Russian Journal of Physical Chemistry A, 82, no. 11 (2008):1958-1960,
https://doi.org/10.1134/S0036024408110289 . .

TY  - CONF
AU  - Stanisavljev, Dragomir R.
AU  - Pavelkić, Vesna M.
AU  - Beljanski, Vladimir
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9373
AB  - Kinetic study of microwave (MW) irradiated enzyme pepsin was performed. Decreased enzyme activity was observed, under constant temperature and absorbed MW energy per time unit. In accordance with experimental conditions, Vmax and Km were calculated for irradiated pepsin solutions and compared with control reaction with non-irradiated pepsin.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
T1  - Microwawe irradiation influence on enzyme kinetics
VL  - 1
SP  - 405
EP  - 407
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9373
ER  - 

@conference{
author = "Stanisavljev, Dragomir R. and Pavelkić, Vesna M. and Beljanski, Vladimir",
year = "2008",
abstract = "Kinetic study of microwave (MW) irradiated enzyme pepsin was performed. Decreased enzyme activity was observed, under constant temperature and absorbed MW energy per time unit. In accordance with experimental conditions, Vmax and Km were calculated for irradiated pepsin solutions and compared with control reaction with non-irradiated pepsin.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry",
title = "Microwawe irradiation influence on enzyme kinetics",
volume = "1",
pages = "405-407",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9373"
}

Stanisavljev, D. R., Pavelkić, V. M.,& Beljanski, V.. (2008). Microwawe irradiation influence on enzyme kinetics. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 405-407.
https://hdl.handle.net/21.15107/rcub_vinar_9373

Stanisavljev DR, Pavelkić VM, Beljanski V. Microwawe irradiation influence on enzyme kinetics. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry. 2008;1:405-407.
https://hdl.handle.net/21.15107/rcub_vinar_9373 .

Stanisavljev, Dragomir R., Pavelkić, Vesna M., Beljanski, Vladimir, "Microwawe irradiation influence on enzyme kinetics" in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry, 1 (2008):405-407,
https://hdl.handle.net/21.15107/rcub_vinar_9373 .

TY  - CONF
AU  - Grozdić, Tomislav D.
AU  - Stojić, Dragica Lj.
AU  - Kumrić, Sandra V.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9362
AB  - The correlation between magnetic properties of cathodic materials on the evolution of hydrogen and the separation factor was found. The cathodes were pure Ni and cathodes with the electrocatalytic coatings of following compositions: Ni-Mo (70- 30%), Ni-V (70-30%), Co-Mo (70-30%) and Fe-Mo (60-40%), on Ni substrate. The electrolyte is standard electrolyte (30% KOH) and electrolyte activated with Co-complex [1].
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
T1  - Influence of external magnetic field on the electrolytic hydrogen evolution on different cathode materials
VL  - 1
SP  - 276
EP  - 278
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9362
ER  - 

@conference{
author = "Grozdić, Tomislav D. and Stojić, Dragica Lj. and Kumrić, Sandra V.",
year = "2008",
abstract = "The correlation between magnetic properties of cathodic materials on the evolution of hydrogen and the separation factor was found. The cathodes were pure Ni and cathodes with the electrocatalytic coatings of following compositions: Ni-Mo (70- 30%), Ni-V (70-30%), Co-Mo (70-30%) and Fe-Mo (60-40%), on Ni substrate. The electrolyte is standard electrolyte (30% KOH) and electrolyte activated with Co-complex [1].",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry",
title = "Influence of external magnetic field on the electrolytic hydrogen evolution on different cathode materials",
volume = "1",
pages = "276-278",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9362"
}

Grozdić, T. D., Stojić, D. Lj.,& Kumrić, S. V.. (2008). Influence of external magnetic field on the electrolytic hydrogen evolution on different cathode materials. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 1, 276-278.
https://hdl.handle.net/21.15107/rcub_vinar_9362

Grozdić TD, Stojić DL, Kumrić SV. Influence of external magnetic field on the electrolytic hydrogen evolution on different cathode materials. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry. 2008;1:276-278.
https://hdl.handle.net/21.15107/rcub_vinar_9362 .

Grozdić, Tomislav D., Stojić, Dragica Lj., Kumrić, Sandra V., "Influence of external magnetic field on the electrolytic hydrogen evolution on different cathode materials" in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry, 1 (2008):276-278,
https://hdl.handle.net/21.15107/rcub_vinar_9362 .

TY  - JOUR
AU  - Cvijović, Đurđe
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3436
AB  - Haruki and Rassias [H. Haruki, T.M. Rassias, New integral representations for Bernoulli and Euler polynomials, J. Math. Anal. Appl. 175 (1993) 81-90] found the integral representations of the classical Bernoulli and Euler polynomials and proved them by making use of the properties of certain functional equation. In this sequel, we rederive, in a completely different way, the results of Haruki and Rassias and deduce related and new integral representations. Our proofs are quite simple and remarkably elementary. (C) 2007 Elsevier Inc. All rights reserved.
T2  - Journal of Mathematical Analysis and Applications
T1  - The Haruki-Rassias and related integral representations of the Bernoulli and Euler polynomials
VL  - 337
IS  - 1
SP  - 169
EP  - 173
DO  - 10.1016/j.jmaa.2007.03.090
ER  - 

@article{
author = "Cvijović, Đurđe",
year = "2008",
abstract = "Haruki and Rassias [H. Haruki, T.M. Rassias, New integral representations for Bernoulli and Euler polynomials, J. Math. Anal. Appl. 175 (1993) 81-90] found the integral representations of the classical Bernoulli and Euler polynomials and proved them by making use of the properties of certain functional equation. In this sequel, we rederive, in a completely different way, the results of Haruki and Rassias and deduce related and new integral representations. Our proofs are quite simple and remarkably elementary. (C) 2007 Elsevier Inc. All rights reserved.",
journal = "Journal of Mathematical Analysis and Applications",
title = "The Haruki-Rassias and related integral representations of the Bernoulli and Euler polynomials",
volume = "337",
number = "1",
pages = "169-173",
doi = "10.1016/j.jmaa.2007.03.090"
}

Cvijović, Đ.. (2008). The Haruki-Rassias and related integral representations of the Bernoulli and Euler polynomials. in Journal of Mathematical Analysis and Applications, 337(1), 169-173.
https://doi.org/10.1016/j.jmaa.2007.03.090

Cvijović Đ. The Haruki-Rassias and related integral representations of the Bernoulli and Euler polynomials. in Journal of Mathematical Analysis and Applications. 2008;337(1):169-173.
doi:10.1016/j.jmaa.2007.03.090 .

Cvijović, Đurđe, "The Haruki-Rassias and related integral representations of the Bernoulli and Euler polynomials" in Journal of Mathematical Analysis and Applications, 337, no. 1 (2008):169-173,
https://doi.org/10.1016/j.jmaa.2007.03.090 . .

TY  - JOUR
AU  - Stojić, Dragica
AU  - Grozdić, Tomislav
AU  - Umićević, Ana
AU  - Maksić, Aleksandar
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12797
AB  - Faraday efficiencies and energy consumptions of a small commercial PEM (Proton Exchange Membrane) and alkaline electrolyser, made in our laboratory with different cathode materials, were determinated. The development of high-efficiency alkaline electrolysers, using different cathode materials (intermetallics alloys of transition metals) and ionic activators, represents the additional step towards the improvement of the electrolytic hydrogen production process in our experiments. On the other hand, PEM electrolysers occupy today important sites in the advanced electrolyses for hydrogen production. Experimental results in this paper indicate that alkaline electrolyser has a higher Faraday efficiency than PEM electrolyser but on the other hand less energy requirement is needed for the PEM electrolyser compared to alkaline one. The results were discussed regarding specific advantages of both types of electrolysers.
T2  - Tehnika - Novi materijali
T1  - Comparison between alkaline and PEM electrolysers
VL  - 16
IS  - 4
SP  - 9
EP  - 12
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12797
ER  - 

@article{
author = "Stojić, Dragica and Grozdić, Tomislav and Umićević, Ana and Maksić, Aleksandar",
year = "2007",
abstract = "Faraday efficiencies and energy consumptions of a small commercial PEM (Proton Exchange Membrane) and alkaline electrolyser, made in our laboratory with different cathode materials, were determinated. The development of high-efficiency alkaline electrolysers, using different cathode materials (intermetallics alloys of transition metals) and ionic activators, represents the additional step towards the improvement of the electrolytic hydrogen production process in our experiments. On the other hand, PEM electrolysers occupy today important sites in the advanced electrolyses for hydrogen production. Experimental results in this paper indicate that alkaline electrolyser has a higher Faraday efficiency than PEM electrolyser but on the other hand less energy requirement is needed for the PEM electrolyser compared to alkaline one. The results were discussed regarding specific advantages of both types of electrolysers.",
journal = "Tehnika - Novi materijali",
title = "Comparison between alkaline and PEM electrolysers",
volume = "16",
number = "4",
pages = "9-12",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12797"
}

Stojić, D., Grozdić, T., Umićević, A.,& Maksić, A.. (2007). Comparison between alkaline and PEM electrolysers. in Tehnika - Novi materijali, 16(4), 9-12.
https://hdl.handle.net/21.15107/rcub_vinar_12797

Stojić D, Grozdić T, Umićević A, Maksić A. Comparison between alkaline and PEM electrolysers. in Tehnika - Novi materijali. 2007;16(4):9-12.
https://hdl.handle.net/21.15107/rcub_vinar_12797 .

Stojić, Dragica, Grozdić, Tomislav, Umićević, Ana, Maksić, Aleksandar, "Comparison between alkaline and PEM electrolysers" in Tehnika - Novi materijali, 16, no. 4 (2007):9-12,
https://hdl.handle.net/21.15107/rcub_vinar_12797 .

TY  - JOUR
AU  - Cvijović, Đurđe
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3267
AB  - Several families of definite integrals involving the tangent or secant function have been evaluated in closed form by making use of the elementary arguments. Some of them are expressible in terms of a finite combination of values of trignometric functions and the Hurwitz zeta function.
T2  - Integral Transforms and Special Functions
T1  - Closed-form evaluation of some families of definite tangent and secant integrals
VL  - 18
IS  - 8
SP  - 569
EP  - 579
DO  - 10.1080/10652460701391316
ER  - 

@article{
author = "Cvijović, Đurđe",
year = "2007",
abstract = "Several families of definite integrals involving the tangent or secant function have been evaluated in closed form by making use of the elementary arguments. Some of them are expressible in terms of a finite combination of values of trignometric functions and the Hurwitz zeta function.",
journal = "Integral Transforms and Special Functions",
title = "Closed-form evaluation of some families of definite tangent and secant integrals",
volume = "18",
number = "8",
pages = "569-579",
doi = "10.1080/10652460701391316"
}

Cvijović, Đ.. (2007). Closed-form evaluation of some families of definite tangent and secant integrals. in Integral Transforms and Special Functions, 18(8), 569-579.
https://doi.org/10.1080/10652460701391316

Cvijović Đ. Closed-form evaluation of some families of definite tangent and secant integrals. in Integral Transforms and Special Functions. 2007;18(8):569-579.
doi:10.1080/10652460701391316 .

Cvijović, Đurđe, "Closed-form evaluation of some families of definite tangent and secant integrals" in Integral Transforms and Special Functions, 18, no. 8 (2007):569-579,
https://doi.org/10.1080/10652460701391316 . .

TY  - JOUR
AU  - Cvijović, Đurđe
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3202
AB  - We, by making use of elementary arguments, deduce integral representations of the Legendre chi function chi(S)(z) valid for vertical bar z vertical bar LT 1 and Res GT 1. Our earlier established results on the integral representations for the Riemann zeta function zeta(2n + 1) and the Dirichlet beta function beta(2n), n epsilon N, are a direct consequence of these representations. (c) 2006 Elsevier Inc. All rights reserved.
T2  - Journal of Mathematical Analysis and Applications
T1  - Integral representations of the Legendre chi function
VL  - 332
IS  - 2
SP  - 1056
EP  - 1062
DO  - 10.1016/j.jmaa.2006.10.083
ER  - 

@article{
author = "Cvijović, Đurđe",
year = "2007",
abstract = "We, by making use of elementary arguments, deduce integral representations of the Legendre chi function chi(S)(z) valid for vertical bar z vertical bar LT 1 and Res GT 1. Our earlier established results on the integral representations for the Riemann zeta function zeta(2n + 1) and the Dirichlet beta function beta(2n), n epsilon N, are a direct consequence of these representations. (c) 2006 Elsevier Inc. All rights reserved.",
journal = "Journal of Mathematical Analysis and Applications",
title = "Integral representations of the Legendre chi function",
volume = "332",
number = "2",
pages = "1056-1062",
doi = "10.1016/j.jmaa.2006.10.083"
}

Cvijović, Đ.. (2007). Integral representations of the Legendre chi function. in Journal of Mathematical Analysis and Applications, 332(2), 1056-1062.
https://doi.org/10.1016/j.jmaa.2006.10.083

Cvijović Đ. Integral representations of the Legendre chi function. in Journal of Mathematical Analysis and Applications. 2007;332(2):1056-1062.
doi:10.1016/j.jmaa.2006.10.083 .

Cvijović, Đurđe, "Integral representations of the Legendre chi function" in Journal of Mathematical Analysis and Applications, 332, no. 2 (2007):1056-1062,
https://doi.org/10.1016/j.jmaa.2006.10.083 . .

TY  - CONF
AU  - Stanisavljev, Dragomir R.
AU  - Grozdić, Tomislav D.
AU  - Marčeta Kaninski, Milica
AU  - Đorđević, A.
AU  - Stojić, Dragica Lj.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9474
AB  - The effect of microwaves (MW) on the electrolytic process of 6M KOH water solution is investigated in the temperature range from 291 K to 337 K. At lower temperatures, microwaves facilitate electrolytic process, whereas the effect is reversed at higher temperatures.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
T1  - Microwave assisted electrolysis of alkaline water solution
SP  - 733
EP  - 735
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9474
ER  - 

@conference{
author = "Stanisavljev, Dragomir R. and Grozdić, Tomislav D. and Marčeta Kaninski, Milica and Đorđević, A. and Stojić, Dragica Lj.",
year = "2006",
abstract = "The effect of microwaves (MW) on the electrolytic process of 6M KOH water solution is investigated in the temperature range from 291 K to 337 K. At lower temperatures, microwaves facilitate electrolytic process, whereas the effect is reversed at higher temperatures.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry",
title = "Microwave assisted electrolysis of alkaline water solution",
pages = "733-735",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9474"
}

Stanisavljev, D. R., Grozdić, T. D., Marčeta Kaninski, M., Đorđević, A.,& Stojić, D. Lj.. (2006). Microwave assisted electrolysis of alkaline water solution. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
Society of Physical Chemists of Serbia., 733-735.
https://hdl.handle.net/21.15107/rcub_vinar_9474

Stanisavljev DR, Grozdić TD, Marčeta Kaninski M, Đorđević A, Stojić DL. Microwave assisted electrolysis of alkaline water solution. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry. 2006;:733-735.
https://hdl.handle.net/21.15107/rcub_vinar_9474 .

Stanisavljev, Dragomir R., Grozdić, Tomislav D., Marčeta Kaninski, Milica, Đorđević, A., Stojić, Dragica Lj., "Microwave assisted electrolysis of alkaline water solution" in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry (2006):733-735,
https://hdl.handle.net/21.15107/rcub_vinar_9474 .

TY  - CONF
AU  - Jelić, Smiljana
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9416
AB  - The influence of the form of the periodic function that describes the circadian rhythm on the hypothalamic-pituitary-adrenal (HPA) system self-regulatory activity in humans is discussed. It was found that the HPA system is very sensitive to the choice of this function since it moderates the concentration of all species that are included in the model, as well as the form of ultradian pulses.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
T1  - Influence of the form of the periodic function that describes the circadian rhythm of the hpa system activity
SP  - 264
EP  - 266
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9416
ER  - 

@conference{
author = "Jelić, Smiljana and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2006",
abstract = "The influence of the form of the periodic function that describes the circadian rhythm on the hypothalamic-pituitary-adrenal (HPA) system self-regulatory activity in humans is discussed. It was found that the HPA system is very sensitive to the choice of this function since it moderates the concentration of all species that are included in the model, as well as the form of ultradian pulses.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry",
title = "Influence of the form of the periodic function that describes the circadian rhythm of the hpa system activity",
pages = "264-266",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9416"
}

Jelić, S., Čupić, Ž.,& Kolar-Anić, L.. (2006). Influence of the form of the periodic function that describes the circadian rhythm of the hpa system activity. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
Society of Physical Chemists of Serbia., 264-266.
https://hdl.handle.net/21.15107/rcub_vinar_9416

Jelić S, Čupić Ž, Kolar-Anić L. Influence of the form of the periodic function that describes the circadian rhythm of the hpa system activity. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry. 2006;:264-266.
https://hdl.handle.net/21.15107/rcub_vinar_9416 .

Jelić, Smiljana, Čupić, Željko, Kolar-Anić, Ljiljana, "Influence of the form of the periodic function that describes the circadian rhythm of the hpa system activity" in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry (2006):264-266,
https://hdl.handle.net/21.15107/rcub_vinar_9416 .

TY  - CONF
AU  - Jelić, Smiljana
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9417
AB  - The HPA system is a complex neuroendocrine system whose main purpose is to regulate wide variety of bodily processes, under basal physiological conditions and during stress, by regulating the plasma levels of corticosteroids secreted from adrenal glands. In this paper, we apply the singularity theory approach to an initial model of this system, which we have previously published.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
T1  - Singularity theory approach apllied to fourdimensional model of the hypothalamic-pituitaryadrenal system activity
SP  - 267
EP  - 269
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9417
ER  - 

@conference{
author = "Jelić, Smiljana",
year = "2006",
abstract = "The HPA system is a complex neuroendocrine system whose main purpose is to regulate wide variety of bodily processes, under basal physiological conditions and during stress, by regulating the plasma levels of corticosteroids secreted from adrenal glands. In this paper, we apply the singularity theory approach to an initial model of this system, which we have previously published.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry",
title = "Singularity theory approach apllied to fourdimensional model of the hypothalamic-pituitaryadrenal system activity",
pages = "267-269",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9417"
}

Jelić, S.. (2006). Singularity theory approach apllied to fourdimensional model of the hypothalamic-pituitaryadrenal system activity. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry
Society of Physical Chemists of Serbia., 267-269.
https://hdl.handle.net/21.15107/rcub_vinar_9417

Jelić S. Singularity theory approach apllied to fourdimensional model of the hypothalamic-pituitaryadrenal system activity. in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry. 2006;:267-269.
https://hdl.handle.net/21.15107/rcub_vinar_9417 .

Jelić, Smiljana, "Singularity theory approach apllied to fourdimensional model of the hypothalamic-pituitaryadrenal system activity" in Physical chemistry 2006: 8th international conference on fundemental and applied aspract of physical chemistry (2006):267-269,
https://hdl.handle.net/21.15107/rcub_vinar_9417 .