Faculty of Natural Sciences and Mathematics
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Item type:Publication, Elementary, my dear Watson! The making of a collection of the natural elements(Society of Chemists and Technologists of Macedonia, 2022-06-21); <jats:p>A unique collection of samples of the chemical elements has been created and displayed at our Institute of Chemistry. Although whole collections are now commercially available, we decided to use, as much as possible, samples from local resources. The general idea was for each item to have a story, making it more interesting for the students and visitors. We were able to acquire elemental samples mined in Macedonia. Other samples were from our student and research labs, as well as donations from colleagues, and the rest were obtained from commercial sources. A web page was created with all the information on each sample, some of them containing videos. Next to the noble gases, mini Tesla coils were mounted to light up the gases.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Passive sampling-based characterization of volatile organic compounds in Skopje: seasonal trends and source identification(Springer Science and Business Media LLC, 2025-10-27); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Unmasking the Aliphatic Repertoire: New Polyunsaturated Metabolites in Bupleurum falcatum sensu lato Provide Chemotaxonomic Insights(MDPI AG, 2025-05-10); Radulović, Niko S.Bupleurum falcatum (Apiaceae) sensu lato includes multiple infraspecific taxa with longstanding taxonomic ambiguities, often resulting from incomplete morphological and chemical characterizations. Herein, diethyl ether extracts were analyzed from four Balkan populations that were tentatively identified as B. falcatum subsp. falcatum (syn. B. falcatum) and B. falcatum subsp. cernuum (syn. B. sibthorpianum). Comprehensive chro-matography and spectroscopic techniques (GC-MS and 1D/2D NMR) enabled the iso-lation of several newly identified aliphatic polyunsaturated esters, including com-pounds bearing uncommon conjugated tetraene and triyne backbones. These novel structures differ from canonical falcarinol derivatives by lacking the usual 3-hydroxylation, suggesting a divergent branch in the crepenynate pathway. The chemical profiles of each sample correlated closely with leaf morphology and infra-specific designations: for example, the Galičica Mt. population of B. falcatum featured a unique newly detected heptadecadientriyne, while the populations from Šar Planina and Suva Planina displayed distinct polyunsaturated repertoires. Extracts from B. sibthorpianum likewise contained stereoisomeric compounds that highlight metabolic divergence. Collectively, these findings demonstrate significant chemotypic variation within the Bupleurum falcatum complex and provide the first account of less-polar sec-ondary metabolites, including newly discovered polyunsaturated metabolites. Future research integrating molecular markers and bioactivity assays may elucidate how these specialized metabolites contribute to both the taxonomy and pharmacological potential of these understudied taxa. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The environmental and health damage caused by the use of coal(Springer Science and Business Media LLC, 2025-01-22); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Expanding the range: First record and redescription of the male of Limnephilus petri Marinković Gospodnetić, 1966 in R. North Macedonia(Institute for Biodiversity and Ecology, 2025-04-10); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Проучување на хемискиот состав на Foeniculum vulgare од Македонија со примена на хроматографски методи(Ss. Cyril and Methodius University in Skopje, 2016-04-15)Менче Најдоска-Богданов - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Проценка и карактеризaција на испарливи органски соединенија во воздух во затворен простор и нa отворено со пасивно земање примероци и напредни аналитички техники(Ss. Cyril and Methodius University in Skopje, 2026-01-21) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 2T2D-correlation analysis of infrared specular reflectance and ratio-reflectance spectra for investigating siloxane nanofilms on silicate glass substrates(Elsevier BV, 2025-08); Mayerhöfer, Thomas G. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The Ohrid Trout: A “Living Fossil” Endemic to Lake Ohrid Left Behind by Science(Multidisciplinary Digital Publishing Institute (Switzerland), 2025-12-01)Tânia Vieira Madureira, Maria João Rocha, Eduardo Rocha and Maja JordanovaThe Ohrid trout (Salmo letnica) is a species endemic to Lake Ohrid (shared by Albania and North Macedonia), which is internationally recognized for its geological longevity and unique natural features. Given that the species has distinctive biological, ecological, and evolutionary characteristics, as well as significant economic value, the decline in this trout’s population is a serious and urgent problem, deserving continuous, scientifically based management. Yet, although it is considered a “Fossil Trout”, research on this species remains limited in relation to science and conservation. To understand the current state of the art, we conducted a systematic review in Web of Science, analyzing 31 indexed articles about the Ohrid trout. These studies primarily focused on the seasonal morphological characteristics of specific organs, phylogenetics, and, to a lesser extent, the impacts of environmental contamination. However, notable gaps exist in understanding sex- and stage-specific physiology, morphotype diversity, and pollutant bioaccumulation. To address these limitations, integrative strategies that combine multi-omics biomarker development, genetic screening of broodstock, and systematic monitoring of pollution and climate-related stressors are crucial. Regional authorities should work with international organizations to establish long-term monitoring of S. letnica. This review aims to provide a critical foundation for overcoming the “Living Fossil Left Behind by Science” paradigm and to foster global initiatives to preserve the long-term survival and evolutionary legacy of this endangered species. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Проценка и карактеризaција на испарливи органски соединенија во воздух во затворен простор и нa отворено со пасивно земање примероци и напредни аналитички техники(Ss. Cyril and Methodius University in Skopje, 2026-01-21)Влазним Мула