University of Belgrade

Hierarchical Organization Modulates Transient Thermal Relaxation Dynamics in Chitinous Cuticles from Marine and Terrestrial Organisms

Abstract Chitinous cuticles are hierarchical biological composites in which the molecular organization spans multiple structural length scales. Although the relationships between chitin chemistry and mechanical performance have been extensively investigated, the structural factor...

Age-Specific Ultrasound Reference Data for the Laterolateral Rectal Diameter in Healthy Children

Background: Transabdominal ultrasonographic measurement of rectal diameter is increasingly used as a non-invasive adjunct for assessing rectal distension and fecal loading in children. However, interpretation is limited by the lack of age-stratified reference data in pediatric po...

The Gut Microbiota as a Mediator of the Metabolic Benefits of Fungi and Their Polysaccharides: A Review of Evidence Addressing Causality

Prebiotic supplementation has emerged as a promising strategy to ameliorate metabolic disorders through beneficial reshaping of the gut microbiota. Accumulating evidence suggests that fungi and their polysaccharides (e.g., those from Auricularia auricula-judae, Boletus edulis, Hi...

A systems-level dissection of aging and longevity mechanisms powered by an evidence-routed AI knowledge graph

Abstract Aging is a complex biological process influenced by numerous molecular and cellular factors. A systems-level understanding of these mechanisms is essential for identifying key regulatory processes and prioritizing effective interventions. Here, we present a comprehensive...

Evaluation of Corrosion Progression in X210Cr12 Tool Steel in a Marine-like Chloride Environment Using SEM/EDS and PCA Techniques

Corrosion of high-chromium tool steels in marine environments is a major concern for structural materials, as chloride-rich conditions accelerate material degradation and reduce service life. The corrosion process involves complex interactions among passive film degradation, loca...

Synchronous Metaplastic Breast Carcinoma with Mesenchymal Differentiation and Triple-Negative Invasive Papillary Carcinoma: A Case Report and Literature Review

Background: Metaplastic breast carcinoma with mesenchymal differentiation is a rare and morphologically heterogeneous malignancy that may show a biphasic epithelial and sarcomatoid pattern historically termed “carcinosarcoma.” Its synchronous occurrence with invasive papillary ca...

Barriers to research engagement among medical students in Türkiye: the role of environmental factors

Abstract Background Medical student participation in structured research activities during undergraduate education appears to remain limited and the factors underlying this limited participation are not yet fully understood. Existing validated questionnaires were not suitable for...

Immediate Versus Early Loading Protocols in Rehabilitation of Fully Edentulous Maxilla: A 5‐Year Pilot Randomized Clinical Trial

ABSTRACT Objective To compare 5‐year outcomes of immediate versus early loading protocols for complete implant‐supported fixed dental prostheses in edentulous maxillae. Materials and Methods A prospective randomized controlled trial evaluated 24 patients (144 Bone Level Tapered S...

Williams–Campbell syndrome in an adult previously treated as allergic bronchopulmonary aspergillosis: a diagnostic challenge

Abstract Introduction Williams-Campbell Syndrome (WCS) is a rare congenital syndrome of unknown origin, characterized by defective or completely absent bronchial wall cartilage which can lead to distal airway collapse, forming bronchiectasis distal to the collapsed bronchi. The e...

A phenomenological multiscale framework for orientational interactions and viscoelasticity in migrating epithelial monolayer

Collective migration of epithelial monolayers emerges from the interplay between mechanical interactions and biochemical signalling on the cellular scale. Here, we provide a phenomenological mechanobiological framework with constitutive interpretation linking microscopic orientat...

Integrated Assessment of Humoral and Cellular SARS-CoV-2 Immunity Using ELISA and a Gold Nanoparticle-Based IGRA

Although SARS-CoV-2 immunity has been widely investigated, the relationship between antibody levels and cellular immune responses following different routes of exposure to SARS-CoV-2 remains not fully revealed. In this study, cellular immunity was assessed using a newly developed...

Brownfield Redevelopment Using the AHP Method for Urban Safety and Environmental Protection

The regeneration of brownfield sites in Belgrade represents an important component of sustainable urban development. Over the past two decades, Belgrade has experienced extensive redevelopment of brownfield sites, although these transformations have largely taken place without a...

Cobalt-Induced Magnéli Phase Transformation Towards Oxygen Evolution and Oxygen Reduction Reactions

Hydrothermal deposition of cobalt on mixed-phase titanium suboxides, Ti5O9 and Ti8O15 (TSO), was performed under mild conditions. High-temperature treatment under a reducing atmosphere led to a phase reversal, contrary to the expected Co-doping into the TSO. Surface cobalt specie...

Too old to rush, too young to wait: Rural older entrepreneurial behaviour from the perspective of socio-biophysical economics

The paper explores the behaviour of rural older entrepreneurs by examining their social identities in the biophysical rural context. Taking a grounded, socio-biophysical approach to older entrepreneurship, the article examines the social and biophysical contexts of older rural en...

Inheritance of wealth and socioeconomic inequality in the Early Bronze Age: Evidence from the Mokrin necropolis (2100–1800 BCE)

The social structure of Bronze Age societies in Europe, particularly the extent and nature of socio-economic inequality, remains a subject of debate. At the heart of this discussion is the question of whether the Bronze Age witnessed a substantial increase in social and economic...

Piezo1 footprint nanoarchitecture: from individual channels to collective behaviour and from outward to inward curvature

Piezo1 acts as a key architect of the cell membrane, generating a curved nanodome that extends beyond the protein trimer itself. Although Piezo1 intrinsically favours an outward (convex) membrane footprint, recent high-resolution studies have revealed that clustered channels can...

Oxidative Stress and Potential Fetal Programming of Neuronal Dysfunction in Newborns Following Maternal COVID-19

Maternal coronavirus disease 2019 (COVID-19) has been associated with systemic inflammation, endothelial dysfunction, placental injury, and increased production of reactive oxygen species (ROS), all of which may influence fetal development. Oxidative stress has emerged as a poten...

Predicting BOD5 Removal Efficiency in a Constructed Wetland from Satellite and Meteorological Data Using Interpretable Machine Learning

Constructed wetlands (CWs) offer a low-cost and sustainable option for wastewater treatment, but their performance is commonly assessed through infrequent, periodic field sampling that yields temporally sparse records. This study evaluated whether five-day biochemical oxygen dema...

Delivering the EU Safe Hearts Plan: the essential role of laboratory medicine in cardiovascular health

Abstract The European Union Safe Hearts Plan provides an opportunity to strengthen cardiovascular prevention, early detection, treatment, and monitoring across Europe. This EFLM position paper argues that laboratory medicine must be recognized as a central component of its implem...

Redescription and new records of Lithobius demavendicus Matic, 1969 from Iran (Chilopoda: Lithobiomorpha: Lithobiidae)

Summary. The Iranian endemic species Lithobius demavendicus Matic, 1969 is rediscovered and redescribed based on newly collected specimens. Previously, the species was known only from an incomplete, most probably subadult male lacking the ultimate pair of legs, collected at high...