Faculty of Agricultural Sciences and Food

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    Improving Medical Cases Retrieval Using an Online Fact Database
    (Springer International Publishing, 2017-10-12)
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    This paper presents an approach for retrieval of medical cases using a novel query expansion method. The approach relies purely on the text data in the medical cases. The cases are indexed with Terrier IR search engine based on their text content including the caption of the figure contained within them. Furthermore, in the retrieval phase there is an input consisted of a long text query in a narrative form. The input query is expanded by using on-line fact databases, such as Freebase, with the aim that this will add more terms relevant to the concepts mentioned in the text. The goal is to provide a way of query expansion, so that the query is more defined, which should provide more narrowed and precise results in the retrieval. The retrieval is done with the BM25 weighting model. Our approach shows that expanding the input text query in this fashion can provide a boost in the retrieval performance.
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    BRIDGING THE GAP BETWEEN AGRICULTURAL EDUCATION AND LABOR MARKET NEEDS: EMPLOYABILITY AND PERCEPTIONS OF AGRICULTURAL ENGINEERING GRADUATES IN NORTH MACEDONIA
    (Faculty of Agricultural Sciences and Food, 2024-12-15)
    Tuna, Emelj
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    Gjoshevski, Dragan
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    Azderski, Jovan
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    Dimitrievski, Dragi
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    Martinovska Stojcheska Aleksandra
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    ECONOMIC ANALYSIS OF GRAPE PRODUCTION IN MACEDONIA: THE CASE OF THE SMEDEREVKA VARIETY
    (Faculty of Agricultural Sciences and Food, 2025-06-15)
    Elenov, Riste
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    Sredojevic, Zorica
    In the Republic of North Macedonia are 1,265 thousand hectares of agricultural land, of which about 520 thousand hectares are arable land. Of the total arable land, arable land and gardens account for 80%, meadows for 12%, vineyards for 5% and orchards for 3%. In the area under vineyards, wine varieties account for 70%, of which white varieties account for 40% and red varieties for 60% (State Statistical Office, 2025). The most common white varieties are: Smederevka, Chardonnay, Riesling and Sauvignon, and the most common red varieties are: Vranec, Kratošija, Cabernet Sauvignon and Merlot. The subject of research in this paper is the production of grapes, the Smederevka variety. The aim of the research is to analyze the results and economic justification of the production of the mentioned grape variety. Data were collected through a survey of 30 grape producers from the Vardar region. The data collected through the survey were processed using the Excel software package. Descriptive statistics indicators were also used. The results of the analysis indicate that the average yield of the Smederevka variety is 18,833 kg/ha, and the average total income is 293,937 denars. In the total income, income from the sale of grapes accounts for 73%, subsidies per area account for 14%, and subsidies per delivered quantities of grapes account for 13%. The average yield rate is 45%, and the average yield threshold is 17,055 kg/ha. The cost price of grapes is the lowest among producers with larger plantings, and they also achieve better operational results. Smaller producers should focus on association, consolidation, and modernization of their capacities, along with continuous education.
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    Integrated extraction optimization and nanoencapsulation of Ziziphus jujuba leaf: Comparative functional evaluation with fruit
    (Elsevier BV, 2026-09)
    Stojanova, Monika
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    Djukic, Dragutin A.
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    Stojanova, Marina S.T.
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    Assessing food waste management in the restaurant sector in the Republic of North Macedonia
    (Agricultural Academy, 2026-06-26)
    Santa, Dushica; Bogevska, Zvezda; Velinova, Ivana; Srbinovska, Sonja
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    Investment in biological systems sustainability of water and locations in rural areas of the Republic of Serbia
    (University of Agronomic Sciences and Veterinary Medicine of Bucharest, 2025)
    Sredojevic, Zorica
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    Elenov, Riste
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    Gajić, Boško
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    Agricultural Labor Dynamics In Pelagonia, North Macedonia: A Case Study Through The Lens Of Agricultural Household And Labor Transition Models
    (University of Agronomic Sciences and Veterinary Medicine of Bucharest, 2025)
    Simonovska, Ana
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    Elenov, Riste
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    Janeska Stamenkovska Ivana
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    Economic experiments in designing new agricultural policies and measures
    (Pensoft Publishers, 2025-04-28)
    Dimitrievski, Dragi
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    Nacka, Marina
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    Elenov, Riste
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    Janeska Stamenkovska Ivana
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    Dimovska, Efimija
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    Methodical approach for assessing the sustainability of agricultural holdings in Bulgaria
    (Agricultural Academy, 2023-12-22)
    Sarov, Angel
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    Kostenarov, Krasimir
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    Elenov, Riste
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    Boevsky, Ivan
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    Dose-Dependent Effects of Foliar Nano NPK and Zinc on Yield, Antioxidant Capacity, and Metabolic Profile of Sweet Pepper (Capsicum annuum L.)
    (MDPI AG, 2026-04-03)
    S. T. Stojanova, Marina
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    Stojanova, Monika
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    Demiri, Sani
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    A. Djukic, Dragutin
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    Kaya, Yalcin
    Foliar nanofertilization is increasingly being explored as a strategy to enhance crop nutritional quality; however, dose-dependent physiological and metabolic responses remain insufficiently defined. This study evaluated the effects of conventional NPK (20:20:20) and nano-formulated NPK combined with zinc (3 and 5 g/L) on the mineral composition, bioactive compounds, antioxidant capacity, and metabolic profile of sweet pepper (Capsicum annuum L., cv. ‘Dora’) grown under controlled conditions. Physicochemical characterization of the nanofertilizer by dynamic light scattering and transmission electron microscopy confirmed nanoscale primary particle size and revealed concentration-dependent aggregation behavior at higher Zn levels. Significant differences (p < 0.05) were observed among treatments in macro- and microelement content, total phenolics, flavonoids, carotenoids, ascorbic acid, and antioxidant activity. The application of nano NPK combined with 3 g/L Zn resulted in the highest accumulation of total phenolics, flavonoids, and vitamin C, accompanied by enhanced antioxidant capacity, suggesting stimulation of secondary metabolism. In contrast, the higher Zn concentration (5 g/L) further increased carotenoid content but was associated with elevated proline levels, indicating the onset of physiological stress. Multivariate analyses (PCA and ROC) supported dose-dependent metabolic modulation and confirmed that combinations of selected metabolites contributed to clearer differentiation between fertilization regimes. Overall, the results highlight the existence of an optimal nano-zinc application range that enhances fruit functional quality while avoiding stress-related metabolic imbalance, emphasizing the importance of physicochemical stability in nano-enabled fertilization strategies. While this study focused on a single sweet pepper cultivar, future research should explore other pepper species to evaluate whether similar dose-dependent nano Zn effects are observed.