UGD Publishing System (Goce Delcev University - Stip / Университет „Гоце Делчев“, Щип)
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CORRELATION OF DENTAL MEDICINE STUDENTS’ PERFORMANCE IN PRECLINICAL AND CLINICAL COURSES: UDC: [378.147.091.32:616.31]:519.233
No full textAIM. - The main aim of this study was to investigate the correlations of final grades among dental students across three academic courses, examining both their pre-clinical and clinical performances, and to determine the relationships between their achievements in pre-clinical practical courses and clinical courses.
MATERIAL AND METHOD. The final preclinical and clinical grades for 34 graduates from the Faculty of Medical Sciences at Goce Delcev University in Stip, North Macedonia, who studied dental medicine between 2020 and 2022 (appropriate generations), were retrieved. The study examined three courses: one preclinical course, Preclinical Periodontology, and two clinical courses, Periodontology 1 and Periodontology 2. Final grades for these courses were sourced from the students’ information system (e-index) and evaluated anonymously. Correlation analysis methods were applied to discover the relationship between two variables/datasets, as well as the strength of that relationship.
RESULTS. The data analysis indicates a positive relationship between the grades of students in preclinical courses and their final grades in clinical courses. In particular, it has been found that students with higher final grades in preclinical courses often achieve higher final grades in clinical courses as well. However, it is important to note that many students experience discrepancies in their final grades between the two clinical courses.
CONCLUSION. Our research suggests a potential positive correlation between preclinical and clinical performance, indicating that clinical outcomes may be forecasted based on preclinical final grades. Additionally, students who demonstrate proficiency in the necessary clinical procedures during the ninth semester tend to maintain that proficiency in the tenth semester. However, it is important to acknowledge that the specific factors influencing this relationship were not explored in this study and warrant further investigation
LONG-TERM POWER PURCHASE AGREEMENT FOR PHOTOVOLTAIC ENERGY AS A SOLUTION FOR ENHANCING THE PROFITABILITY OF THE TASHMARUNISHTA PUMPED-STORAGE HYDRO POWER PLANT: UDC: [621.311.214+621.311.243](497.782)
No full textThis paper analyzes the potential of a long-term Power Purchase Agreement (PPA) as a mechanism to enhance the profitability of the Tashmarunishta pumped-storage hydro power plant (PSHPP). The study focuses on a 20-year agreement for the procurement of electricity from a 300 MW photovoltaic (PV) power plant, with purchase price of 32 €/MWh. The electricity generation of the PV power plant is modeled and simulated in PV*SOL premium on an hourly basis. Furthermore, based on data from the pre-investment study for PSHPP Tashmarunishta, the required electricity for water pumping and the expected electricity production from the PSHPP are analyzed. The proposed operational regime includes ten hours of water pumping during PV electricity production for six consecutive weeks, followed by one week with nine hours of pumping and seven hours of electricity generation from the PSHPP in the evening, when market prices are at their peak. The hourly-level analysis enables an assessment of the technical and economic benefits of this mechanism, examining the potential improvement in the economic sustainability of the Tashmarunishta PSHPP through the optimal utilization of renewable energy sources
IN VITRO EVALUATION OF SOIL Bacillus STRAINS ISOLATED FROM THE BUCIM COPPER MINE FOR BIOCONTROL AGAINST GRAPEVINE DOWNY MILDEW
No full textPlasmopara viticola, the disease that causes grapevine downy mildew, is a major and enduring concern for the grapevine industry globally. It’s challenging to manage using chemical and agricultural methods. For the wine-growing industry, several countries, including North Macedonia, have reoriented their strategies in order to reduce chemical inputs, which have been shown to be toxic and to have a negative impact on the environment. Instead, they are replacing these chemicals with sustainable biocontrol regulations. Bacillus spp. is a well-known plant-protective bacteria with antifungal potential in biocontrol strategies. The aim of this study was to isolate and screen soil Bacillus strains from the Bucim Copper Mine in four seasons with potential applications for biocontrol of this disease. The highest number (3.2 x 105 CFUg-1) of Bacillus spp. was found in autumn, while the lowest number (2.8 x 102 CFUg-1) was found in winter. Out of 18 isolates, 4 showed antifungal activity against Plasmopara viticola. The intracellular metabolites of the isolates B1-19, B2-3, B3-2, B3-4 showed maximum inhibition of 20-32 mm, while only the extracellular extract of the isolate B1-19 showed maximum inhibition of 25 mm against Plasmopara viticola. The moisture content values ranged from 0.9-8.5 % and the pH value ranged from 7.11 – 7.58. The total organic matter values ranged from 4.47 to 4.99 %. Due to the antifungal potential as biological control agents against grape downy mildew, the isolates are expected to enhance integrated pest management systems going forward and maybe reduce the quantity of chemical fungicides used in vineyards
WATER QUALITY OF KOSELSKA RIVER AND OHRID LAKE IN THE DALJAN REGION
No full textThe aim of this paper is to examine the state and quality of the water from Koselska river, as well as its influence on the quality of water in the coastal zone, more precisely where the mouth of the river flows into the lake.
Also, the goal of this research was to look at the nature and degree of possible water pollution, due to anthropogenic influence, based on the results obtained from the testing of microbiological and physio-chemical parameters, which would make it possible to predict and recommend remedial measures and minimize pollution.
To correctly interpret the results of the microbiological analysis of water, physical and chemical tests of water temperature and BOD5 were also performed.
The microbiological examination included testing the composition and dynamics of heterotrophic, psychrophilic and mesophilic bacteria, determining the index of mesophilic and psychrophilic bacteria (M/P), the index of facultative oligotrophic and heterotrophic bacteria (FO/X), as well as the total number of coliform bacteria.
It was determined that the representation and abundance of all types of microorganisms is higher in the river water than in the lake water.
The total number of bacteria from Daljan region is greater in the summer period compared to other periods of the year. Likewise, consistently high values of the number of coliform bacteria were determined in the two types of water.
Based on the results obtained in this research, it was determined that the water from the river affects the quality, health and safety of the water in Ohrid Lake
CHEMICAL CHARACTERIZATION OF TOBACCO SOILS IN THE PRILEP REGION: ENVIRONMENTAL AND AGRICULTURAL PERSPECTIVES
No full textThe quality of the soil plays a fundamental role in agricultural productivity, particularly in tobacco cultivation, where both high yields and superior leaf quality are essential. The elemental composition of the soil, in particular the balance between essential nutrients and the presence of potentially toxic elements, plays a crucial role in shaping soil quality and influencing overall plant health and development. In this study, the soil quality in the Prilep region in North Macedonia, the main cultivation area for oriental tobacco, is investigated. During the 2021 and 2022 growing seasons, soil samples were collected from selected tobacco fields and analyzed using ICP-MS to determine the concentrations of selected macro and microelements (K, Mg, Fe, and Na) as well as potentially toxic elements (As, Cd, Cr, Cu, Ni, Pb, and Zn). In addition to elemental analysis, several key agrochemical properties were also assessed: organic matter content (ranging from low to moderate), total nitrogen content (0.03–0.14%), soil pH (mean 6.55, indicating slightly acidic to neutral conditions), the availability of essential nutrients (phosphorus and potassium), the physical structure of the soils (classified as medium loam), and clay content (20.6% to 58.7%). The content of macro- and microelements were closely related to the geological and pedological characteristics of the region. The concentration of potentially toxic elements remained below the internationally accepted thresholds for heavy metals in agricultural soils, indicating a low risk of contamination and confirming the suitability of these soils for sustainable tobacco cultivation
CARBON AND OXYGEN ISOTOPE SIGNATURE OF HYDROTHERMAL MINERAL DEPOSITS IN A POST-COLLISIONAL MAGMATIC-HYDROTHERMAL SYSTEM: A REVIEW FROM NORTH MACEDONIA
No full textThe subaerial magmatic-hydrothermal system exposed on the territory of Republic of North Macedonia represents a natural laboratory for studies of ore-forming processes associated with post-collisional magmatism. In this part of the Balkan Peninsula, neotectonics uplifted and exposed Tertiary post-collisional mineral deposits formed at different crustal levels, including deeply sitting porphyry Cu deposits, proximal and distal skarn deposits, and Carlin-like deposits. Locally epithermal deposits are also preserved. This paper summarizes and discusses previously published carbon and oxygen isotope data obtained from gangue carbonates collected from the key deposits in North Macedonia.
 
CRIMINOLOGICAL ASPECT OF CRIMES AGAINST THE ENVIRONMENT AND NATURE IN THE TERRITORY OFRNM FOR THE PERIOD OF 2018-2022
No full textEnvironmental crimes, or also known as green crimes, are increasingly interesting for studyby criminologists due to their specific and diverse forms. Criminology deals not only with the damages and losses that occur on the environment, but also with the movement of illegal trade, thetypes of perpetrators, the connections of environmental with other types of crime, etc. For a betterperception of the problem, as well as its final solution, a detailed analysis of the criminological aspects of environmental crime is necessary. The starting goal of this paper is to analyze the statistical data in the territory of RNM to gain insight into the criminological aspect of crimes against the environment and nature, as well as the type of perpetrators of this type of crimes and their motives. A data analysis method will be used for the period from 2018 to 2022 based on various variables such as: gender, nationality, age, etc
REGIONAL VALORIZATION OF TOURIST POTENTIAL IN THE R.N. MACEDONIA
No full textThe main goal of the paper is to present the tourist valorization of natural and anthropogenic attractive motifs in the R.N. of Macedonia by planning regions. In the research, we evaluate 400 tourist attractions, of which 160 are natural and 240 are anthropogenic motifs. In the evaluation, all eight planning regions are represented by 50 tourist attractions, of which 20 are natural and 30 are anthropogenic. We carry out the valorization process through 10 parameters and evaluate each one with three numerical values. The conclusion presents the main specificities of the tourism potentials for each region separately and for the R.N. Macedonia as a whole
REGULATION IN EMERGING INDUSTRIES
No full textThis paper analyses the development of regulatory frameworks in the context of growing technologies and new industry models. Research focuses on the need for regulators to adapt in a world of rapid technological change, balancing the need to foster innovation and protect public welfare. Through an analysis of successful and failed examples of regulatory approaches, the importance of flexibility, innovation, and collaboration between industry, government, and academia is highlighted. Properly implemented regulation in emerging industries is key to creating confidence, protecting consumers, and sustaining growth. 
THE CULINARY FESTIVALS IN SHUMEN REGION
No full textThe number of culinary festivals in individual villages in the region is growing. They promote the culinary traditions of a given settlement, which also contributes to the development of local tourism. In the region, this type of event is held either once or periodically. Culinary festivals are places where traditional dishes are accompanied by music and are performed by local people. The goal is to transfer knowledge from the past to the present and future, and to preserve the traditional taste of food. Each season has its own food and each region its own specificity, which makes it different. Food always leaves unforgettable impressions