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Упит dcterms_subject_txt:Environmental Chemistry,Global and Planetary Change

2156 items

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M 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 Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ 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 ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... reciprocal of the change in slope and intercept (Aslope and Aintercept) that are determined by subtracting the values in the presence of activator from that in its absence, are linear [29,30]. "The intercepts ofa plot 1/Aslope and 1/Aintercept vs. 1/ [AF** ] on 1/A axis, and intercepts of both ...
    ... MARIJA A. ILIC? lDepartmem of Physical Chemistry, Vinca-pInstitute of Nuclear Science, POB 522, 11001 Belgrade, Serbia, ŽSchool of Medicine, University of Belgrade, Visegradsha 26, 11000 Belgrade, Serbia, and „Institute of General and Physical Chemistry, Studentshi trg 12-16, 11000 Belgrade, Serbia ...
    ... University of Belgrade Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Journal of Enzyme Inhibition and Medicinal Chemistry, December 2008; 23(6): 1002—-1010 informa ...

  • Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes

    Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić (2011)
    Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...
    Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
    ... reactions of [(TLtBu)PdCl]+ and [Pd(tpdm)Cl]+ complexes were initiated by mixing equal volumes of complex and ligand solutions directly in the stopped-flow instru- ment and the reaction was followed for at least eight half-lives. The substitution process was monitored as change in absorbance with time under ...
    ... reactions of [(TL®")Pdcl]* and [Pd(tpdm)Cl]* complexes were initiated by mixing equal volumes of complex and ligand solutions directly in the stopped-flow instru- ment and the reaction was followed for at least eight half-lives. The substitution process was monitored as change in absorbance with time under ...
    ... 3. Kinetic measurements The substitution reactionsof the [(TLtBu)PdCl]+ and [Pd(tpdm)Cl]+ complexes with the nucleophiles: thiourea, I�, Br�, NO2 �, pyridine and DMSO were studied spectrophotometrically by following the change in absorbance at suitable wavelengths as a function of time. Spectral changes ...

  • Synthesis and characterization of high-pressure and high-temperature sphene (CaTiSiO5)

    Jelena Pantić, Vladimir Urbanovich, Vesna Poharc-Logar, Bojan Jokić, Marija Stojmenović, Aleksandar Kremenović, Branko Matović (2014)
    Sphene (CaTiSiO5), a calcium titanosilicate ceramic has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization and activation of precursors. During the highpressure and high-temperature synthesis (HPS) process at 4 GPa and 1,200 °C, sphene undergoes into phase transition, from room-temperature phase P21/a to high-temperature phase A2/a. Evidence of that structural phase transition is given in this paper using infrared, Raman spectroscopy and X-ray powder diffraction. Rietveld refinement was employed to get the ...
    Sphene, Phase transition, Raman spectroscopy, X-ray diffraction, SEM, IR

  • Preliminary regional landslide susceptibility assessment using limited data

    Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)
    In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...
    klizišta, podložnost
    ... pathian Journal of Earth and Environmental Sciences, 7/2, 37–47. EUROPEAN ENVIRONMENTAL AGENCY (2009): 2006 Corine land cover, 100 m – version 12/ 2009 ERENER, A. & DÜZGÜN, H.S.B. (2010): Improvement of statistical landslide sus- ceptibility mapping by using spatial and global regression methods in ...
    ... parameter change and in- sensitive to any other alteration. Medium susceptibility class is predominantly sensitive to lithological type and slope inclination change (around 5.5% in both variants, WLT/WSI-TLSR-100 and WLT/WSI-TLSR-500). High susceptibility is particularly sensi- tive to the change of l ...
    ... shows that models WSI-TLSR100 and WSI- TLSR500 have the most significant change in size of the area un- der high and very high susceptibility, and the least change in number of landslides in these zones, both with negative trends. On the other hand, the models WAP-TLSR100 and WAP- TLSR500 show the most ...

  • Characterization of Natural Clay from Bogovina (Serbia) and Possible Utilization in Sorption of the Herbicides

    Lazar Kaluđerović, Zorica Tomić, Rada Đurović-Pejčev, Maja Milošević (2021)
    ... (SERBIA) AND POSSIBLE UTILIZATION IN SORPTION OF THE HERBICIDES Lazar M. Kaluđerović* 1, Zorica P. Tomić1, Rada Đurović-Pejčev2, Maja Milošević3 1Department for Soil Management, Faculty of Agriculture/ University of Belgrade, 2Laboratory of Chemistry, Institute of pesticides and environmental protection ...
    ... other hand, due to the high solubility, pesticides are mobile and could be detected in groundwater. Changing the surface nature of montmorillonite from hydrophilic to hydrophobic is crucial for enhancing the sorption of pesticides. This change in the surface characteristics of montmorillonite can be ac ...
    ... Faculty of Mining and Geology archives faculty publications available in open access, as well as the employees' publications. - The Repository is available at: www.dr.rgf.bg.ac.rs Call for contributions Clean water and sanitation & Life on land Linking soil mineralogy to soil properties and functions ...

  • Life Cycle Assessment of Individual Wood Biomass Heating Systems in Households

    Boban Pavlović, Dejan Ivezić, Marija Živković (2020)
    The use of solid fuels (wood biomass and coal) for heating of households continues to be common practice within European countries. Solid fuel combustion in households contributes more than 46% to total emissions of fine particulate matter. In this study, a life-cycle assessment (LCA) of firewood-based and pellet-based heating systems is performed. These two systems represent two different types of individual wood biomass heating systems. In the case of the firewood-based heating systems, it is analyzed a typical stove ...
    Grejanje, Analiza životnog ciklusa, Drvna biomasa, Individualni sistemi grejanja
    ... very important issue that reflects on energy consumption and environmental performance. Deployment of more efficient technologies in the combustion of biomass results in significant benefits for the environment, climate change mitigation, and sustainable development. The obtained results show that ...
    ... negative impact on the environment and climate change, and at the same time, it ensures the financial benefits through savings and conservation of natural resources. This research showed that the implementation of LCA for assessing heating systems is an efficient and relatively simple method for obtaining ...
    ... the environment and climate change, and at the same time, it ensures the financial benefits through savings in wood biomass consumption and conservation of natural resources. This research showed that the implementation of LCA for assessing the HS alternatives is an efficient and relatively simple ...

  • A multi-criteria approach for assessing the potential of renewable energy sources for electricity generation: Case Serbia

    Boban Pavlović, Dejan Ivezić, Marija Živković (2021)
    When assessing the potential of renewable energy alternatives for electricity generation, it is necessary to implement a multi-perspective approach that includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a fuzzy numerical value scale for the assessment of expert judgments and energy indicators provides a more sensitive ...
    Proizvodnja električne energije, Obnovljivi izvori energije, Višekriterijumsko odlučivanje, Srbija
    ... (RESs) can simultaneously miti- gate issues such as greenhouse gas emissions, pollution, and the exceeding of critical planetary boundaries (Bogdanov et al., 2019). The on-going global energy transition from the fossil-based to the low-carbon energy sector has increasingly been incorporated in national ...
    ... includes economic, technical, environmental, and socio-political criteria. For the evaluation of criteria and alternatives, the Fuzzy Analytical Hierarchy Process (FAHP) method is applied. The obtained weights are formed according to the values of energy indicators and expert judgments. The use of a ...
    ... Greek island, with respect to the economic, technical, environmental, and social aspects. Using the case of Lithuania’s electricity sector and multiple criteria mathematical methods AHP (Analytic Hierarchy Process) and ARAS (Additive Ratio Assessment method) Štreimikiene et al. (2016) evaluated electricity ...

  • A hydraulic–hydrochemical approach to impact assessment of a grout curtain on karst aquifer behavior

    Igor Jemcov, Marina Ćuk Đurović (2020)
    Earth and Planetary Sciences (miscellaneous), Water Science and Technology

  • Structural and geochronological constraints from the Drina-Ivanjica thrust sheet (Western Serbia): implications for the Cretaceous–Paleogene tectonics of the Internal Dinarides

    Kristof Porkoláb, Szilvia Kövér, Zsolt Benkó, Gabor Héja, Melinda Fialowski, Balázs Soós, Nataša Gerzina Spajić, Nevenka Đerić, László Fodor (2019)
    Internal Dinarides, Drina-Ivanjica thrust sheet, Deformation history, K–Ar dating, Obduction, Structural analysis
    ... collision: the Fruška Gora of northern Serbia. Global and Planetary Change, 103, 39-62. Tomljenović, B., Csontos, L., Mdrton, E., & Mirton, P. (2008). Tectonic evolution of the northwestern Internal Dinarides as constrained by structures and rotation of Medvednica Mountains. North Croatia: ...
    ... between subduction and lateral extrusion: a case study for the European Eastern Alps based on analogue models. Earth and Planetary Science Letters, 472, 82-94. Voll, G. (1976). Recrystallization of quartz, biotite and feldspars from Erstfeld to the Leventina Nappe. Swiss Alps, and its geological ...
    ... Karth and Planetary Science Letters, 393, 132—145. Andrić, N., Sant, K., Matenco, L., Mandic, O., Tomljenović, B., Pavelić, D., et al. (2017). The link between tectonics and sedimentation in asymmetric extensional basins: Inferences from the study of the Sarajevo-Zenica Basin. Marine and Petroleum ...

  • FTIR spectroscopic study оf S-мetolachlor сorption оn inorganic and organically modified montmorillonite from Bogovina

    Lazar Kaluđerović, Zorica Tomić, Jelena Bogosavljević, Ljubomir Životić, Maja Milošević (2021)
    ... between montmorilonite and chloroacetanilide herbicide could include coordination bonds between C=O and the exchangeable cation, and/or H bonds between C=O and the hydration water bcecause C=O 333 SERBIAN SOCIETY OF SOIL SCIENCE Soils for Future under Global Challenges and C-N in this compound ...
    ... SCIENCE Soils for Future under Global Challenges After air drying, montmorillonite was saturated with 1 M NaCI, and lefton a mechanical shaker for 24 h, centrifuged and rinsed with distilled water until the negative reaction on CL. The sample was then alr-dried and named Na-montmorillonite (NaM) ...
    ... pairs on the oxygen of methoxy and ethoxy group are in resonance with the lone pair on nitrogen and the double C=O bond, which delocalizes the charge distribution and reduces the charge density on the carbonyl oxygen (Liu et al., 2000). The second significant change after the S-metolachlor sorption ...

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... materials: properties and applications. CRC Press. [6] Dutta, T., Kim, K.H., Uchimiya, M., Kwon, E.E., Jeon, B.H., Deep, A. and Yun, S.T., 2016. Global demand for rare earth resources and strategies for green mining. Environmental Research, 150, p.182-190. [7] C.K. Gupta and N. Krishnamurthy Extractive ...
    ... organometallic and organoamidometallic chemistry of the lanthanoids and alkaline earths (Doctoral dissertation, Monash University). [35] Wang, C., 2023. 7heory and application of rare earth materials. Springer Nature. [36] Dorenbos, P., 2012. A review on how lanthanide impurity levels change with chemistry ...
    ... Journa! of environmental management, 224, p.406-413. [106] North, W., 2022. Solar Farrn-Accommodation and Employment Strategy. [107] Jowitt, S.M., Werner, T.T., Weng, Z. and Mudd, G.M., 2018. Recycling of the rare earth elements. Current Opinion in Green and Sustainable Chemistry, 13, p.1-7. ...

  • New Technology for Prevention of Eolian Erosion of Ash on the Ash Disposals in Power Plant Nikola Tesla in Serbia

    Ristović Ivica, Borisavljević Ana (2010)
    40

  • Analogue modelling of strain partitioning along a curved strike-slip fault system during backarc-convex orocline formation: Implications for the Cerna-Timok fault system of the Carpatho-Balkanides

    Nemanja Krstekanić, Ernst Willingshofer, Taco Broerse, Liviu Matenco, Marinko Toljić, Uroš Stojadinović (2021)
    analogno modelovanje, raspodela deformacija, geometrija indentera, Černa i Timok rasedni sistem
    ... from the evolution of the Serbian Carpathians. Global and Planetary Change. https://doi.org/10.1016/j.gloplacha.2020.103361. Krýza, O., Závada, P., Lexa, O., 2019. Advanced strain and mass transfer analysis in crustal-scale oroclinal buckling and detachment folding analoguemodels. Tectonophysics ...
    ... R., 2013. Strain partitioning at orogenic contacts during rotation, strike-slip and oblique convergence: paleogene–Early Miocene evolution of the contact between the South Carpathians and Moesia. Global Planet. Change 103, 63–81. Krstekanić, N., Matenco, L., Toljić, M., Mandić, O., Stojadinović ...
    ... Dinarides. Global Planet. Change 182, 103027. Wallace, R.E. (Ed.), 1990. The San Andreas Fault System, California. USGS Professional Paper 1515. US Geologiocal Survey, California. Wang, H., Liu, M., Ye, J., Cao, J., Jing, Y., 2017. Strain partitioning and stress perturbation around stepovers and bends ...

  • Effects of Energy Production and Consumption on Air Pollution in Serbia

    Marija Živković (2019)
    Energy production and combustion, mostly from unregulated or inefficient fuel combustion, are the single most important anthropogenic sources of air pollutant emissions. Energy sector in Serbia is highly fossil fuel intensive: 87.88% of energy consumed in Serbia is related to fossil fuels, while almost 95% of energy sources are combusted. In 2017. energy related carbon dioxide emission in Serbia is was 47.95 million tones. The main source of carbon dioxide emission was coal, responsible for almost 70% of energy ...
    energy related emissions, Serbia
    ... highest shares of particulate matter and carbon dioxide at a global level (Figure 1) 4.Thus, cities could become pollution hotspots, as they concentrate people and related energy consumption. Figure 1. Selected primary air pollutants and their sources (Energy and air pollution) This paper is aimed to ...
    ... distribution and consumption in the at the global level, or level of the country, region etc 4.  Nowadays the most of attention of is dedicated to reduction of carbon dioxide emission and mitigation of climate changes 5, while other pollutants receive less attention. Energy production and combustion ...
    ... imperative — for safety reasons and to avoid corrosion to the pipeline transport ¥ ffl Energy and Air Pollution: system — to remove sulfur as soon as practicable after production. WEO 2016 Special B Create PDF Report | AI Foreword Figure 1.12 > Global average emissions factors and share of major pollutant ...

  • Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal

    Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)
    Polimeri i plastika, opšta hemija
    ... rs (N.A.); dragana.zivotic@rgf.bg.ac.rs (D.Ž.) 4 Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia; snezanat@chem.bg.ac.rs 5 Institute of Chemistry, Technology and Metallurgy, Center of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade ...
    ... ac.rs (N.A.); dragana.zivotic@rgf.bg.ac.rs (D.Z.) 4 Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia; snezanat@chem.bg.ac.rs Institute of Chemistry, Technology and Metallurgy, Center of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, ...
    ... of Belgrade, Faculty of Chemistry. 3. Results and Discussion 3.1. TGA Analysis Figure 1a shows the TGA curve and derivative weight loss (DTG) curve of pre- extracted lignite. The first peak at 90.8 ◦C corresponds to loss of moisture. Degradation of OM starts at about 300 ◦C and the greatest weight loss ...

  • Formative evaluation of e-learning projects with the logical framework approach

    Roberto Linzalone, Giovani Schiuma, Ivan Obradović, Ranka Stanković (2015)
    ... effects and impacts, on individuals and organizations, to support the applicant in the design phase. This last purpose is increasingly important for all the stakeholders of e-learning projects (i.e. universities, companies, communities, as well as students and employees), due to a global and highly ...
    ... effects and impacts, on individuals and organizations, to support the applicant in the design phase. This last purpose is increasingly important for all the stakeholders of e-learning projects (i.e. universities, companies, communities, as well as students and employees), due to a global and highly ...
    ... existing within the project (the "project logic"): inputs, activities, outputs, specific objectives (results), global goals (impacts); c. identification of "conditions" or "assumptions and risks" or "external factors" whose presence is indispensable for the realization of the causal chain. ...

  • Against the tide: southeast to northwest shelf-edge progradation in the southeastern margin of Lake Pannon, Banat (Serbia and Romania)

    Dejan Radivojević, Miloš Radonjić, Lajos Tamás Katona, Imre Magyar (2022)
    In the late Neogene, the Pannonian Basin in Central Europe was filled with sediments when rivers from the Alps and Carpathians shed their sediment load into Lake Pannon. The most powerful source-to-sink system was that of the paleo-Danube, transporting sediments from the NW as far as the southeastern part of the lake. In the southeastern margin of the basin, however, local sedimentary systems worked in the opposite direction, against the “tide” of the prevailing N to S sediment transport. ...
    General Earth and Planetary Sciences

  • Investigating distant effects of the Moesian promontory: Brittle tectonics along the western boundary of the Getic unit (East Serbia)

    Ana Mladenović, Milorad D. Antić, Branislav Trivić, Vladica Cvetković (2019)
    In this study, we report evidence for brittle deformation in a part of the Carpatho–Balkan orogen, which is explained in terms of effects of the rigid Moesian promontory of the European plate on fault kinematics in East Serbia. We focus on the westernmost part of the Getic Unit of the East Serbian Carpatho–Balkanides, i.e. the Gornjak–Ravanica Unit, located between two main thrusts that were repeatedly activated from Early Cretaceous to recent times. We combine a new data set on ...
    Getikum, Mezijska jedinica, Karpato-balkanski orogen, krte deformacije, Gornjačko-ravanička jedinica

  • Groundwater resources for drinking water supply in Serbia´s Southeast Pannonian basin

    Dušan Polomčić, Bojan Hajdin, Marina Ćuk, Petar Papić, Zoran Stevanović (2014)
    menadžment podzemnih voda, monitoring, kvalitet podzemnih voda, bilans, baza podataka