University of Nis

Waste management performance in the Western Balkans: A multi-criteria assessment using the PROMETHEE method

Solid waste management in the Western Balkans remains critically underdeveloped relative to European Union (EU) standards, with recycling infrastructure gaps, widespread reliance on landfilling, and incomplete harmonisation with the EU Waste Framework Directive posing persistent...

A weak $m$-WGI for rectangular matrices

Inspired by significant results regarding the $m$-weak group inverse ($m$-WGI) and its generalization to rectangular matrices, known as the $W$-weighted $m$-WGI ($W$-$m$-WGI), we investigate the solvability of a new and more general matrix equations that extend those previously u...

Automated In-InjectorPort Conversion of AristolochicAcids to Aristolic Acids for Enhanced HPLC Fluorescence Detection

Abstract Aristolochic acids (AAs) and the herbs containing them are recognized human carcinogens. Emerging evidence indicates that AAs are also food and environmental contaminants, posing significant risks to human health. This study developed a highly sensitive AA detection meth...

Integrated Chemical, Computational, and Cellular Profiling of a Dual-Oil Melanoma Formulation: An Exploratory Life-Science Study

Background: Previous studies have examined bioactive constituents of Prunus dulcis oil, Pinus sylvestris essential oil, and related phytochemical matrices separately; however, their combined chemical profile, comparator-context molecular-docking landscape, and comparative cellula...

The Institutional Plateau in Microcredential Adoption: A Hybrid Review of Peer-Reviewed Evidence and Practitioner Reports in Higher Education

Micro-credentials have attracted intense scholarly and policy attention, yet recent practitioner evidence, most notably the 2026 UPCEA survey of US institutions, the catalyst for this review, suggests that institutional commitment has plateaued even as individual engagement deepe...

Association Between the Presence of Multimorbidity and Sociodemographic Factors and Health Care Utilization in the Adult Population of Serbia: A National Health Survey

Introduction: Multimorbidity, defined as the coexistence of two or more chronic conditions in the same person, represents a major challenge for modern health systems due to its association with adverse health outcomes, increased mortality, and high healthcare utilization. We aime...

Potentially Clinically Relevant Drug–Drug Interactions in Oncology Patients Receiving Chronic Opioid Therapy: Prevalence and Associated Factors

Background: Patients with malignant diseases receiving chronic opioid therapy are particularly susceptible to drug–drug interactions because of extensive polypharmacy, multimodal anticancer treatment, supportive care, and comorbidities. This study aimed to determine the prevalenc...