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1.
Conceptualisation of Forest Tourism : The Kočevsko Case Study
Barbara Pavlakovič Farrell, Vita Petek, original scientific article

Abstract: This paper presents the definition of forest tourism and three varieties of forest tourism activities. An empirical study was conducted to examine the perception of forest tourism and forest activities in the case study of the Kočevsko forest in Slovenia. The triangulation approach consisted of a survey among Slovenian tourists, interviews with tourism stakeholders, and content analysis of promotional elements of the Kočevsko destination. The data showed that tourists find forest destinations interesting, safe, unspoilt, and suitable for young people and families. They describe forest tourism with the words ‘bear’, ‘forest’, and ‘nature’. The respondents mostly prefer outdoor forest activities, wildlife observation slightly less, and lastly the relaxation options. The knowledge gained could help forest destinations to develop their products and adopt the appropriate customer approach.
Keywords: forest tourism, nature-based tourism, destination management, wildlife, outdoor recreation, forest relaxation
Published in RUP: 06.03.2026; Views: 366; Downloads: 17
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2.
Factors affecting students’ performance on national assessments of mathematics in Italy : a random forest approach
Daniel Doz, Bor Bregant, 2024, original scientific article

Abstract: This paper investigates the impact of teacher-assigned grades in Mathematics and Italian, students’ gender, and geographical macroregion on students’ performance in the Italian INVALSI mathematics assessment, using Random Forest analysis across grades 2, 5, 8, 10, and 13. Findings revealed that the two most influential factors are mathematics and Italian teacher-assigned grades, followed by gender. Boys consistently achieve higher INVALSI scores, while girls receive higher teacher-assigned grades. Performance disparities are observed among the five Italian geographic macroregions, with students from northern and central Italy performing better. Linguistic abilities and gender show varying significance across grades. The role of geographic macroregion is more pronounced in high school. Results were confirmed using Boosting Regression, validating the findings. This study highlights the significance of teacher-assigned grades, linguistic skills, gender, and geographic disparities in predicting students’ performance on the INVALSI mathematics test, showcasing the value of machine learning modelsin addressing educational equity.
Keywords: INVALSI, mathematics, national assessment, random forest, grades
Published in RUP: 22.01.2026; Views: 624; Downloads: 5
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3.
On a conjecture of Erdős on size Ramsey number of star forests
Akbar Davoodi, Ramin Javadi, Azam Kamranian, Ghaffar Raeisi, 2025, original scientific article

Abstract: Given two graphs F_1 and F_2, their size Ramsey number, denoted by r̂(F_1, F_2), is the minimum number of edges of a graph G such that for any edge coloring of G by colors red and blue, G contains either a red copy of F1 or a blue copy of F2. In this paper, we deal with the size Ramsey number of star forests (disjoint union of stars) and following a conjecture by Burr, Erdős, Faudree, Rousseau, and Schelp in 1978, we determine the exact value of r̂(⊔_{i = 1}^s K_{1, ni}, ⊔_{i = 1}^t K_{1, mi}) in several cases including when either m_i’s and n_i’s are odd, or s = 1 or s = 2 and n_1 = n_2.
Keywords: size Ramsey number, star forest, Ramsey minimal graph
Published in RUP: 21.10.2025; Views: 1835; Downloads: 10
.pdf Full text (282,24 KB)

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A note on acyclic number of planar graphs
Mirko Petruševski, Riste Škrekovski, 2017, original scientific article

Abstract: The acyclic number ▫$a(G)$▫ of a graph ▫$G$▫ is the maximum order of an induced forest in ▫$G$▫. The purpose of this short paper is to propose a conjecture that ▫$a(G)\geq \left( 1-\frac{3}{2g}\right)n$▫ holds for every planar graph ▫$G$▫ of girth ▫$g$▫ and order ▫$n$▫, which captures three known conjectures on the topic. In support of this conjecture, we prove a weaker result that ▫$a(G)\geq \left( 1-\frac{3}{g} \right)n$▫ holds. In addition, we give a construction showing that the constant ▫$\frac{3}{2}$▫ from the conjecture cannot be decreased.
Keywords: induced forest, acyclic number, planar graph, girth
Published in RUP: 03.01.2022; Views: 2521; Downloads: 28
.pdf Full text (227,50 KB)

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Communicating forest sector sustainability : results from four European countries
E. Korhonen, Anne Toppinen, K. Lähtinen, L. Ranacher, Andrea Werner, Tobias Stern, Andreja Kutnar, 2016, original scientific article

Abstract: Communication is an important tool in maintaining legitimacy and acceptability of forest sector operations and activities, and expectations by the general public on the forest sector conduct in Europe are in general very high. Despite this, there is scarce research in crossnational context on how forest sector sustainability is communicated to the general public, and what development areas can be identified in terms of communication content. This study applies a qualitative content analysis in four forestry-rich European countries (Austria, Finland, Germany and Slovenia). The state of online communication of 61 companies and 19 industry associations was qualitatively analyzed in 2014 with a focus on eight core sustainability topics of interest that were identified via an international forest sector stakeholder feedback process. Our results show some great similarity, but also some interesting differences in terms of communication frequency and weight of hot topics across countries. The most frequently communicated area was economic contribution of forests (in Finland and Austria); debate over forest conservation versus production (Germany) and the concept added value of wood (in Slovenia). With the exception of Slovenia, role of forests in combatting global warming was emphasized more frequently within industry associations than among individual forest industry companies. Characteristically, current content of sustainability communication focuses on supplying factual information. Thus, there is a need for developing more targeted and bidirectional forms of stakeholder communication in the future, emphasizing also more active use of social media channels and empowering organizations to promote interactive communication and collaborative learning.
Keywords: communication, sustainability, stakeholder, forest sector, Europe
Published in RUP: 08.08.2016; Views: 5449; Downloads: 304
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