This paper analyzes a model of sustainable organic waste management through the utilization of rabbit manure via vermicomposting. Rabbit manure, consisting of solid and liquid excreta combined with bedding materials (straw, sawdust), is not directly applied to agroecosystems but is biologically transformed using California red worms (Eisenia fetida...

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

The authors propose a new model for count time series based on a hybrid structure that combines an autoregressive component with an innovation-driven component, where regime selection at each time point is governed by a latent Markov process. The key novelty of the model is the introduction of an additional, independent latent process that dynamica...

By Milena Stojanović, Teodora Čamagić, Aleksandar Nastić

This paper explores the development of the circular economy in Bosnia and Herzegovina by analysing the first concrete steps away from a linear, landfill‑dependent model and towards more resource‑efficient waste and material management. It builds on a comprehensive study of waste management systems, secondary raw materials and investment opportuniti...

By Draženko Bjelić, Scott E. Crosset

Manure management in intensive livestock production represents a major environmental challenge due to gas emissions, nutrient losses, and potential air and water pollution. Biochar is a carbon-rich material produced through biomass pyrolysis under limited oxygen conditions. It is used as an amendment in manure management systems due to its porous s...

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

Technical drawing is an integral part of general technology education and, consequently, of the Technical Culture curriculum in primary schools, with recommendations for the use of computer programs for drawing and three-dimensional modelling. This creates opportunities for the implementation of computer-aided design (CAD) in teaching. However, lit...

By Darko Suman, Stjepan Kovačević, Damir Purković

With the aim of defining the environmental crisis as a security and legal challenge, the author, in the first part of the paper, examines the genesis of the concept of ecocide, from the Vietnam War to the 2021 expert panel, presenting the evolution of ecocide from a political concept into a normative framework. The second part of the paper is dedic...

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

Honey bees (Apis mellifera) represent reliable bioindicators of environmental quality due to their role as pollinators, wide foraging range, and continuous interaction with various ecosystem components. The aim of this paper is to examine the significance of bees as bioindicators through the analysis of pollutant accumulation mechanisms and their a...

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

This study examined the effects of Pb and Cd on seed germination and root growth of red clover (Trifolium pratense L.) under treatments with varying metal concentrations and equimolar amounts of β-diketonate, using an adapted bioassay method. The results showed that Pb and Cd reduced seed germination and root length in T. pratense. Root growth...

By Snežana Branković, Filip Grbović, Radmila Glišić, Slađan Adžić, Kristina Luković, Aleksandra Rakonjac, Marija Marin

This study examined the effect of β-diketonate on the germination and early seedling growth of Trifolium pratense L. exposed to water samples from the Cvetojevac wastewater treatment system in Kragujevac. The experiment used a bioassay approach and included the following treatments: control, inlet wastewater, outlet wastewater, β-diketona...

By Snežana Branković, Radmila Glišić, Rastko Ajtić, Glorija Ćirković, Nenad Joksimović, Jelena Bogosavljević Lipovac, Filip Grbović

Meat quality is largely determined by post mortem biochemical processes, particularly the rate and extent of pH decrease resulting from glycogen conversion to lactic acid. The intensity of these changes depends on the animal's genetic background, pre-slaughter conditions, and the technology applied during slaughter and chilling. This study investig...

By Ana Velemir, Snježana Mandić, Danica Savanović, Aleksandar Savić, Sanja Resanović