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Toward Zero Waste Mining: Circular Economy of Copper Slags
No full textOnly 8.6% of the global economy follows the principles of the circular economy. Mining and metal extraction processes generate over 90% of global waste, with slags being the major contributor to waste accumulation. Copper slags mostly consist of stable compounds that are safe for the environment, the main concern being the leaching of heavy metals into the ground. The market for using waste copper slags to produce value-added products is established in the last century and grown to an 800 million dollar market in 2024, with a predicted compound annual growth rate of 5.5% in the following years. However, only 15% of the generated copper slags worldwide are used for commercial purposes. In order to attain complete reusability of copper slags, industrial techniques must be adopted to eliminate threats from heavy metals and other possibly harmful elements. Additionally, it is essential to establish a market that can sustainably handle all quantities of generated slag. This review highlights the properties that make copper slags suitable for producing value-added products. With the rapid increase in population and urbanization, there is a potential to utilize copper slags for a-large-scale construction purposes such as earthworks and buildings. The demand for geotechnical applications and construction materials constantly increases and can absorb the entire quantity of copper slags generated. If this happens, it would mean an achievement of 100% reusability of copper slags in compliance with circular economy principles
ZnO as Photoelectrocatalyst for H2 Production and Electrochemical Sensor for Water Pollutants Detection: The Influence of Oxygen Vacancies in ZnO Crystal Structure on its Functional Properties
No full textNowadays, driven by population growth, economic development and changing consumption patterns, we are facing two major global problems, the energy crisis and clean water scarcity. Besides, the increasing demand for clean water is directly related to the growing problem of water pollution. The energy crisis can be overcome by employing Fujishima and Honda idea about the hydrogen production by solar-driven photoelectrochemical (PEC) water splitting using semiconductor as a photoanode. This pioneering idea of producing hydrogen through PEC, developed in 1972, gained significant recognition in the 21st century as a sustainable and green energy technology. Problem with environment, along with continuous monitoring of pollutants. Among variety of analytical methods, electrochemical sensors (ECS) are acknowledged due to superior selectivity, sensitivity and response time in detecting and monitoring environmental pollutants. The most important analytical performances of ECS can be significantly improved through modification of the bare electrode surface with semiconductor materials. Thus, two major global challenges, energy shortage and water pollution, can be overcome by developing multifunctional semiconductors effective as photoelectrocatalysts and electrochemical sensors. Zinc oxide (ZnO) is a semiconductor material which combines properties such as electrochemical activity, chemical and photochemical stability and non-toxicity, thus can be used for application in electronics, opto-electronics, as well as in electrochemical and biological sensing technologies for detection and monitoring of water pollutants. During the years we have used different approaches to develop multifunctional ZnO-based materials with improved photoelectrocatalytic and sensing properties. We have found that functional properties of ZnO can be improved by tailoring amount and type of oxygen vacancies in the crystal structure which can be achieved by employing different surfactants (PEO, CTAB, Pluronic F127, etc.) as additive during microwave processing of Zn(OH)2 precipitate. To comprehend the influence of oxygen vacancies on functional (photoelectrocatalytic and sensing) properties of synthesized ZnO particles, at first, their crystal structure, morphological, textural, and optical properties have been investigated in detail. The photoelectrocatalytic activity for hydrogen evolution reactions has been tested in acidic and alkaline electrolytes using linear sweep voltammetry while the electrochemical sensing activity of glassy carbon electrode modified by synthesized ZnO particles has been tested for detection of Diclofenac in water using cyclic voltammetry. Improvement in functional properties is correlated with amount and type of oxygen vacancies
Rapid vs. Conventional Annealing: Impact on Optical Losses in TiN Thin Films
No full textTitanium nitride (TiN) is emerging as a promising alternative to noble metals for plasmonic and photonic applications, offering stability and CMOS compatibility [1,2]. This study investigates the effects of 150 keV Au ion implantation followed by rapid thermal annealing (RTA) and conventional annealing on the optical and metallic properties of sputtered TiN thin films. Ion implantation modifies the dielectric function by introducing damage and smaller crystallites, which reduces the metallic character and optical losses (Figure 1). Post-implantation RTA significantly enhances the metallic response, decreasing plasma frequency and Drude broadening, thus minimizing optical losses. Comparable results are achieved by conventional annealing; however, it requires longer processing time. At 500 °C, conventional annealing leads to the formation of Au nanoparticles, introducing additional absorption due to scattering. Overall, RTA proves to be a more efficient route for tuning the plasmonic performance of TiN films, making it highly suitable for applications in the visible–NIR range where low optical losses and defined metallic behavior are essential.X International School and Conference on Photonics : PHOTONICA2023 : book of abstracts; 25 - 29 August 2025 Belgrade, Serbia
The Ruthenian Language in Serbia from the Perspective of Endangerment
No full textThe paper explores the endangerment of the Ruthenian language in Serbia
through a mixed-method approach, combining quantitative and qualitative analyses of
data obtained from a sociolinguistic questionnaire (VLingS Questionnaire 1.0; Mirić et al.
2025) completed by 78 members of the Ruthenian community. The field research was
conducted in 2023 as part of the project “Vulnerable Languages and Linguistic Varieties in
Serbia” (VLingS), funded by the Science Fund of the Republic of Serbia within the program
IDEAS (2022–2024). The study presents findings from the quantitative analysis of
responses related to the educational background of speakers (V_2, V_5), their emotional
and attitudinal relationship to the Ruthenian language (XII_4, XII_5), and perspectives
on language maintenance and revitalization (XIV_4, XIV_6, XIV_7). It further examines
patterns of language use across different social domains (III_1_1–III_1_6) and the
intergenerational transmission of the language (II_5, II_6, II_7). Notable discrepancies
emerged between the respondents’ declared attitudes and reported language practices,
as well as between their stated values and actual engagement in preservation efforts. To
address these inconsistencies, the paper includes a qualitative analysis of open-ended responses
concerning language maintenance (XIV_5 and XIV_9), offering interpretative
insights into the underlying sociolinguistic dynamics. The findings contribute to a deeper
understanding of the complex factors affecting the sustainability of minority languages in
multilingual setting
The influence of Fe-doping on the structural, electrical and magnetic behavior of mechanically activated SrTiO3 ceramics
No full textThis research focused on the structural, dielectric and magnetic properties of Fe-doped strontium-titanate (SrTiO3) ceramics prepared from mechanically activated powders. A solid-state method was used for powder preparation with mechanical activation times of 10, 30 and 120 min. The SrTiO3 ceramics were doped with various iron(III) oxide (Fe2O3) contents of 1.5 wt%, 3 wt% and 6 wt%. X-ray diffraction analysis showed the presence of structure distortion due to ion substitution which caused changes in lattice parameter. For samples activated for 30 and 120 min Fe ions were predominantly incorporated onto Sr sites for 3 wt% Fe2O3, while for 6 wt% Fe2O3 Fe ions were predominantly incorporated onto Ti sites. Microstructural analysis showed that the 120 min activated sample (6 wt% Fe2O3) had the highest homogeneity and bulk density (4.75 g cm−3). Also, this sample exhibited multiferroic behavior as a consequence of the incorporation of Fe ions onto Ti sites in the structure, where magnetic properties are induced by doping without significantly impairing the dielectric properties. Based on these results, the optimal electrical and magnetic properties of SrTiO3 ceramics can be achieved by the appropriate choice of mechanical activation time and dopant concentration.This is the peer reviewed version of the paper: Živojinović, Jelena, Tadić Peleš, Adriana, Kosanović, Darko, Petrović, J., Filipović, Suzana, Blagojević, Vladimir A., Obradović, Nina, "The influence of Fe-doping on the structural, electrical and magnetic behavior of mechanically activated SrTiO3 ceramics" in Journal of Alloys and Compounds, 1010 (2025):177545, [https://doi.org/10.1016/j.jallcom.2024.177545
Quantum yield and thermal sensitivity of SrGd2O4:Yb, Tm up-conversion nanoparticles
No full textLuminescence thermometry is an effective method for temperature measurements using the remote operating mode. In this work, a series of Tm3+ (1 at%) and Yb3+ (2, 4, and 6 at%) ions doped SrGd2O4 up-conversion (UC) nanoparticles were synthesized by the modified sol-gel method, and fully characterized toward optimization of their composition and optical characteristic. Crystallization of single-phase nanoparticles with homogeneous doping was confirmed by XRPD, TEM/HRTEM, and STEM/EDS analysis in all samples, independently of their stoichiometry. The UC emissions recorded under 976 nm excitation revealed typical Tm3+ transitions, showing that the optimal sensitizer doping concentration is 4 at%. For this sample, a lifetime of 342 μs, and a total quantum yield of 1.12 % were determined at room temperature for the emission observed in the Vis part of up-conversion spectra. The temperature-dependent emission spectra, measured from 263 to 363 K, implied its excellent temperature-sensing capabilities. The luminescent intensity ratio (LIR) was employed for blue I479/485 and IR I795/807 Tm3+ emissions. The absolute and relative temperature sensitivity continuously decreases with the increase of the temperature, showing the values of 4.05x10−3 K-1 and 0.41 % K−1 (for blue) and 3.8x10−3 K-1 and 0.31 % K−1 (for IR) at the temperature of 300 K. The results indicate that SrGd2O4 doped with 4 % Yb3+ and 1 % Tm3+ may be employed for reliable temperature measurement over an investigated temperature range.This is the peer reviewed version of the paper:
Stamenković, Tijana, Dinić, Ivana, Tomić, Miloš, Mančić, Lidija, Lojpur, Vesna, "Quantum yield and thermal sensitivity of SrGd2O4:Yb, Tm up-conversion nanoparticles" in Ceramics International, no. InPress (2024), [https://doi.org/10.1016/j.ceramint.2024.10.023
Festive ritual breads in the Prizren-Timok vernacular
No full textУ раду је пажња усмерена на лексичке јединице из домена традиционалне културе – културе обредне исхране. Из дијалекатских речника југоисточне Србије ексцерпиране су лексеме којима се именују обредни хлебови календарског циклуса празника. Лексичко-семантичком анализом обухваћени су називи многобројних врста хлебова различитих облика, намена и назива како би се допринело компактном, али и компаративном увиду у ареале јужне и југоисточне Србије. Циљ рада је представљање инвентара лексема којима се номинују обредни хлебови, као и указивање на различите аспекте концепта обреда и улога хлеба у календарским празницима. Такође, у поменутом контексту сагледавају се и упоређују подаци из дијалекатских речника, других релевантних речника и етнокултуролошке литературе.This paper focuses on lexical units from the domain of traditional culture – culture of ritual nourishment. Lexemes naming ritual breads of the calendar holiday cycle have been excerpted from the dialectal dictionaries of southeastern Serbia. The lexical –semantic analysis encompasses names of numerous kinds of bread of various shapes, purposes and names in order to contribute to a compact, but also comparative insight into the areas of south and southeastern Serbia. The aim of the paper is to present the inventory of the lexemes naming ritual/ceremonious breads, as well as to point out to various aspects of the concepts of ritual and the role of bread in calendar holidays. Although many names are common to different areas, territorially marked distinctions noticeable on the lexical and semantic field are still apparent and conspicuous – many areas are characterized by specific nominations, but also differential meaning. To a certain extent, the results of dialectal interference within the body of Prizren-Timok vernacular were illuminated, and at the same time the situation in other researched vernaculars was briefly presented.Ни
Ivana Perica, Politics, Literature and Tertium Datur: Socialist Central Europe, 1928–1968, London: Bloomsbury Academic, 2024
No full textМузикологија / Musicology (39 II/2025)
No full textНа крају двадесет пете године континуираног излажења часописа Музикологија, пред читаоцима је изузетно обимно издање броја 39 (II/2025). Рубрика Тема броја носи наслов Часописи и научне политике: увиди из (етно)музиколошких перспектива. Осмислили смо га на трагу јубилеја, с намером да подстакнемо изучавање ове области, посебно у контексту савремених научних политика у којима часописи постају важан медиј преношења и валоризације научних сазнања у глобалној академској заједници. У укупно осам прилога, аутори из Србије, Босне и Херцеговине, Турске, Аустрије и Сједињених Америчких Држава посвећују се разматрању часописа из различитих истраживачких перспектива. Рубрика Varia обухвата седам тематски и методолошки разноврсних (етно)музиколошких студија аутора из Грчке, Немачке, Турске и Србије. Број садржи и научне приказе трију монографија и једне збирке нотних записа.At the end of the twenty-fifth year of continuous publication of the journal Musicology, an exceptionally extensive Issue No. 39 (II/2025) is presented to the readers. The Main Theme section is titled Journals and Scholarly Policies: Insights from Ethno/Musicological Perspectives. Conceived in the context of the jubilee, this section aims to encourage research in the field, particularly in relation to contemporary scholarly policies in which journals increasingly serve as key media for disseminating and valorizing knowledge within the global academic community. In a total of eight contributions, authors from Serbia, Bosnia and Herzegovina, Türkiye, Austria, and the United States of America examine journals from various research perspectives. The Varia section comprises seven thematically and methodologically diverse ethno/musicological studies by authors from Greece, Germany, Türkiye, and Serbia. This issue also includes scholarly reviews of three monographs and one sheet music collection
Музикологија у Зборнику Матице српске за сценске уметности и музику (1987–2024)
No full textГодине 1987. објављен је први број Зборника Матице српске за сценске уметности и музику у Новом Саду. Посвећен театрологији, филмологији, музикологији и етномузикологији, ово је први српски научни часопис из области музикологије. Године 2024. изашао је 70. број овог гласила. То је био повод за израду ове студије, која доноси типолошку систематизацију и анализу музиколошких доприноса у тих седамдесет бројева. Зборник је био изразито посвећен истраживању и проучавању историје српске музике, а у том оквиру посебно
историји црквене музике и историји музикографије. Заступљени су и радови о старијој и савременој европској музици, опери, балету, џезу, мјузиклу, позоришној и филмској музици и др