Sweet cherry pits, a significant fraction of agro-industrial bio-waste, are often underutilized despite their richness in bioactive compounds. In line with sustainable resource management and circular economy principles, their valorization using green extraction techniques has gained attention. Microwave-assisted extraction (MAE) and ultrasound-ass...

By Aleksandra Cvetanović Kljakić, Pavle Mašković, Jelena Mašković

Nicotine is a naturally occurring bicyclic alkaloid, composed of a pyridine ring connected to a pyrrolidine ring. Possessing two heterocyclic nitrogen atoms, it behaves like a dibasic compound in water. The pyrrolidine nitrogen has a pKa of approximately 8.0 while the pyridine nitrogen has a pKa of 3.12-3.41. Therefore, at physiological pH of 7.4 a...

By Andrija Vukov, Bojan Šarac, Domen Goste, Teona Teodora Borović, Jovana Selak, Snežana Papović, Milan Vraneš

ABSTRACT This study investigates the influence of gamma irradiation on the thermal properties of polyolefins and polymer blends, aimed at improving polyolefin waste recycling. In addition to binary blends of isotactic polypropylene (iPP) and low-density polyethylene (LDPE), several commercial polymer samples were analyzed, including neat LDPE, nea...

By Djurica Katnic, Ognjen Todorovic, Luka Golubovic, Snezana Brkovic, Slavica Porobic Katnic, Marija Milenkovic, Milena Marinovic Cincovic

This paper analyses the phenomenology of bullying in secondary schools in the area of Banja Luka, with the aim of examining its prevalence, forms and perception among students. Bullying is defined as intentional and repeated aggressive behaviour among same-age peers, which may take verbal, physical, social and digital forms, and may have significan...

By Jelena Milić, Danijela Jokanović, Darjana Sredić

This paper explores the impact of Halal certification on environmental standards in the Serbian meat industry, with particular emphasis on sustainable resource use and the reduction of the environmental footprint in meat production. Although Halal certification is primarily a religious regulatory framework, it encompasses specific requirements rela...

By Suzana Knežević, Milena Milojević, Maja Došenović Marinković, Aleksandra Milošević

Redesigning artificial intelligence algorithms to support an efficient, balanced, and objective hiring process is becoming a critical step in achieving and maintaining a competitive advantage in the labor market. This paper aims to highlight the importance of stored data and information generated by individuals, whose neutrality and objectivity can...

By Branislav Sančanin, Aleksandra Penjišević, Ognjen Bakmaz

Waste management is becoming an increasingly important factor in the context of climate change, particularly due to methane emissions from landfills, which have a significantly stronger warming effect than carbon dioxide. The City of Prnjavor, facing challenges related to the growth of municipal waste and limited infrastructure, represents a repres...

By Draženko Bjelić, Jasna Moravac, Tijana Đuričić, Borislav N. Malinović

Aronia, as a berry fruit rich in nutrients, represents a suitable raw material for obtaining cold-pressed juices. The chemical composition of aronia indicates the presence of a large amount of polyphenolic compounds and anthocyanins, which contribute to its antioxidant and antimicrobial properties. This study describes the process of producing cold...

By Maja Milijaš, Dragoljub Cvetković

This paper explores the perceptions of Serbian IT professionals regarding the impact of artificial intelligence (AI) tools on individual productivity in the context of IT business. As AI technologies become increasingly integrated into everyday work environments, particularly in knowledge-intensive industries, understanding user attitudes and exper...

By Nikola Radosavljević, Gordana Rendulić Davidović, Cariša Bešić, Miloš Papić

Lactobacillus acidophilus has been increasingly studied as a probiotic for allergy treatment. For probiotics to deliver their beneficial effects, they need to be present in adequate numbers, which is often achieved by immobilizing them within protective matrices. A flaxseed cake is rich in fibers, proteins, and bioactive components, which makes it ...

By Tanja Krunic