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1.
The maternal environment of European beech (Fagus sylvatica L.) affects intrapopulation variability in seed traits and germination
Vladan Popović, Aleksandar Lučić, Mladen Ivanković, Branislav Cvjetković, Gregor Božič, Vlatko Andonovski, Danijela Miljković, 2026, original scientific article

Abstract: Interpopulation variation was investigated using seed samples originating from twenty-six European beech (Fagus sylvatica L.) populations across the Balkan Peninsula, a part of the species’ distribution range characterized by high ecological heterogeneity in key climatic factors, such as temperature (5.8-10.6 °C), precipitation (648-1632 mm), and elevation (185-1410 m a.s.l.). The statistical significance of intrapopulation differences was confirmed by analysis of variance (ANOVA) for all seed traits analyzed: seed weight (g), length (mm), width (mm), thickness (mm), eccentricity and flatness indices, and germination capacity (%). Multivariate principal component analysis (PCA) was applied to examine seed traits in relation to environmental variables of the maternal site, such as mean temperature and precipitation in September and October (the seed maturation period), revealing distinct patterns of relationships among the variables studied. Seed traits were significantly positively correlated with mean temperatures of the maternal site in September and October, indicating that temperature during the seed-filling period affects seed mass. Germination capacity was associated with precipitation during the same period, though the correlation coefficient was not statistically significant; a shorter vector length in the PC biplot suggests a weaker contribution to population separation. Elevation of the site of origin showed a significant negative correlation with temperature, precipitation, and seed traits. Agglomerative hierarchical clustering analysis identified three distinct population clusters. Higher temperature and precipitation values did not necessarily result in higher seed trait values or higher germination percentages. The population with the highest seed mass exhibited the lowest germination capacity (32%) during seed maturation under the lowest precipitation. Conversely, the population characterized by the lowest seed mass showed a higher germination rate of 68% in environments with high precipitation. These results provide valuable insights into the reproductive ecology of European beech, suggesting that other factors beyond those analyzed here may have a more substantial influence on seed germination. The variation in seed traits across habitats that are either drier and hotter or colder and wetter, along the elevation gradient of the studied populations, paves the way for future research and breeding efforts to enhance the species’ survival and reproductive success amid anticipated climate change scenarios.
Keywords: seed traits, seed germination, European beech, Fagus sylvatica L., environmental variation, southeast europe, genetic variation
Published in DiRROS: 20.04.2026; Views: 177; Downloads: 116
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2.
Prevalence of high-risk human papillomaviruses (HPV) in Slovenian women attending organized National Cervical Cancer Screening 14 years after implementation of the National HPV Vaccination Program
Mateja Lasič Pecev, Anja Oštrbenk Valenčak, Špela Smrkolj, Klara Bohinc, Ana Pflaum, Mario Poljak, 2025, original scientific article

Abstract: Background/Objectives: To assess overall and type-specific HPV vaccine effectiveness in central and eastern Europe (CEE), the age-stratified prevalence of cervical HPV infection was determined among Slovenian women aged 20 to 64 attending a cervical cancer screening program 14 years after implementation of a national HPV vaccination program, which was then compared with 2009-2010 pre-vaccination data using the same methodological approach. Methods: Cervical samples of 4419 women were tested in 2023-2025 using the clinically validated Alinity m HR HPV Assay, and individual HPV types were determined by the Allplex HPV HR Detection assay. Results were compared with 2009-2010 pre-vaccination data generated using the same assay on an age-range matched cohort of women. Results: The overall prevalence of the 14 Alinity-targeted HPV types was 10.0% in 2023-2025 versus 13.3% in 2009-2010 (p < 0.001). HPV16 prevalence declined from 3.5% to 1.5% (p < 0.001), and HPV18 prevalence from 1.1% to 0.5% (p = 0.005). In women aged 20 to 24 with 40% uptake of quadrivalent HPV vaccine, overall HPV prevalence dropped from 25.3% to 12.8% (p < 0.001). No single case of HPV16/HPV18 infection was detected among vaccinated women. Conclusions: The first large-scale, systematic, and methodologically consistent study of HPV vaccine effectiveness in CEE showed a substantial reduction in high-risk HPV prevalence after implementation of the national program, with the greatest decline among women aged 20 to 24, who harbored the highest HPV burden in the pre-vaccination era. These locally acquired data will considerably inform public health strategies on cervical cancer elimination in CEE.
Keywords: HPV, Slovenia, central ane eastern Europe, cervical cancer, prevalence, screening, vaccination
Published in DiRROS: 20.04.2026; Views: 143; Downloads: 98
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3.
Cataract surgical training in Poland : analysis of the European Board of Ophthalmology survey results
Rémi Yaïci, Małgorzata Mirr, Lauriana Solecki, Emilia Koestel, Eugénie Bazarya, Sorcha Ní Dhubhghaill, Massira Melanie Sanogo, François Lefebvre, Wagih Aclimandos, Rimvydas Asoklis, Barbara Cvenkel, 2025, original scientific article

Abstract: Backgrounds/objectives: This study, part of a series, aims to present and analyze the results of the Polish cohort in a European Board of Ophthalmology (EBO) survey on cataract surgical (CS) training in Europe, highlighting national traits and contributing to the discussion on standardizing ophthalmology training. Materials and methods: This study analyses the survey results of Polish participants in the EBO examinations (2018-2022) and compared them with the largest groups of candidates (Germany, France, Swiss and Spain). Results: Out of 144 candidates, 79 (55%) answered the questionnaire. Most (70.9%) had taken the EBO exam between 2021 and 2022, with the vast majority of study participants being women (77.2%) with a median age of 34 years and came from 9 different voivodeships. Notably, 25.4% stated that they had carried out 10 or more training sessions on virtual reality simulator, 13.9% on synthetic eyes and 12.7% on animal eyes. There was a significant difference in the concrete use of SBME (more than ten sessions regardless of the simulation tool) between men and women (55.6% versus 23% respectively, p = 0.008). A notable discrepancy was observed between participants with 10 or more training sessions and those without specific training in four key areas: self-assessed confidence and ability to perform cataract surgery (p = 0.003), handling complications like posterior capsular tear (p < 0.001) and in performing corneal sutures (p = 0.015). Less than half (40.5%) of respondents had not performed any steps of cataract surgery on patients during their residency. Unlike in the EBO results, there were no gender differences found. Discussion: The results show a geographically homogenous group with an overrepresentation of Warsaw. Polish residency training is a hybrid model ensuring that all residents receive uniform surgical training. After completing their residency, Polish ophthalmologists are subsequently categorized into either surgical specialists or clinical practitioners.
Keywords: surgical training, simulation, phacoemulsification, survey, Poland, Europe, kirurško usposabljanje, simulacija, fakoemulzifikacija, anketa, Poljska, Evropa
Published in DiRROS: 10.04.2026; Views: 188; Downloads: 96
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4.
Fellowships across Europe : insights from the European Board of Ophthalmology survey
Rémi Yaïci, Helena Prior Filipe, Lauriana Solecki, Lea Dormegny, Emilia Koestel, Sorcha Ní Dhubhghaill, Rimvydas Asoklis, Huban Atilla, Catherine Creuzot-Garcher, Denise Curtin, Barbara Cvenkel, 2026, original scientific article

Abstract: Purpose: Analyse the results of a European Board of Ophthalmology (EBO) survey on post-residency training (fellowship) opportunities across Europe, providing insights from ophthalmic educators on the current landscape. Methods: A cross-sectional study was conducted using an anonymous 31-question online survey distributed to educators in all EBO-affiliated countries. Results: The response rate was 61% with participation of 392 ophthalmic educators. Despite broad participation, Southwestern Europe was overrepresented, while Northern and Central Europe were underrepresented, affecting regional balance. Respondents had a mean age of 51 ± 11 years, with 37.8% as professors and 46.6% as department heads. Most (54.1%) were affiliated with university hospitals. The reported median percentage of residents pursuing post-residency training was 25%, varying between 15% and 100%, with 15.3% of respondents uncertain about their existence, especially in non-university hospitals. Post-residency training durations were predominantly 1 or 2 years. National diplomas were highly valued except in the United Kingdom; language proficiency was required in 84.2% of countries. Respondents reported a median of three positions per department, with 60% filled by local residents. Surgical activity accounted for 65%, with regional variations, whereas 40% of positions involved research. Observerships remained rare (10%). Financial compensation was provided in 67% of cases. A national medical licence was deemed essential, whereas the EBO diploma and letters of recommendation were moderately valued, especially in Northern Europe. Fellowships were highly recommended by 76.2%, while 63% believed that grants would improve access to positions. Conlusion: This survey represents the largest data set on post-residency training in Europe. Results highlight a lack of cohesion in fellowship opportunities, with many respondents uncertain about national programmes. A national medical licence remains the primary requirement, while language proficiency and financial support are key factors influencing access. Institutional support for medical educators is increasing, yet challenges persist regarding time, resources and funding. Focusing on subspecialty training and research, fellowships are crucial for career progression. Expanding training opportunities through international initiatives could further enhance accessibility and standardisation across Europe.
Keywords: Europe, fellowship, medical education, ophthalmology, post-residency training, sub-specialisation, survey
Published in DiRROS: 09.04.2026; Views: 156; Downloads: 120
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5.
Different languages, different landscapes? Exploring linguistic differences in landscape conceptualizations
Přemysl Mácha, Matjaž Geršič, 2026, original scientific article

Abstract: The goal of the research was to assess whether landscape conceptualization systematically differed across European languages in the context of the linguistic relativity debate. We examined the generalizability of previous findings and evaluated the limits of used methodologies, drawing on a large and diverse sample of 14 languages across 5 linguistic families in Eastern Europe (Slavic, Baltic, Uralic, Romance, Hellenic). Participants were asked to free-list terms associated with three linguistic domains: landscape, animals, and body parts. Mixed ANOVA, pairwise comparisons, frequency distribution, cognitive salience, and semantic network analyses were used to test for relationships and to visualize patterns and differences between languages. We confirmed that the landscape domain was less structured than the domains of animals and body parts. Furthermore, the landscape domain had weaker semantic connections across languages. However, we did not find any systematic differences in landscape conceptualizations across languages that could be clearly attributed to linguistic factors. Rather, we argue that the observed variability is more likely the result of multiple factors – geographical, cultural, and linguistic. Building on previous research, we propose more nuanced methods in future research that integrate qualitative, ethnographic insights with quantitative methods, while accounting for extra-linguistic factors.
Keywords: landscape perception, linguistic relativity, Eastern Europe, semantic differences
Published in DiRROS: 28.03.2026; Views: 253; Downloads: 138
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6.
Central Europe tectonic hiatus 2015–2019
Miloš Briestenský, Stanka Šebela, Petar Stefanov, Uroš Novak, 2026, original scientific article

Abstract: Long-term extensometric monitoring across Central Europe reveals a pronounced tectonic hiatus between 2015 and 2019. Using high-resolution data from the EU TecNet network of optical – mechanical TM-71 and TM-72 extensometers installed along major fault zones, we document a widespread attenuation or cessation of fault-related micro-displacements that coincided with a marked decrease in regional seismicity. The hiatus was most prominent in the Western Carpathians, where fault movements were arrested at nearly half of the monitored sites, preferentially affecting major NNE – SSW-striking fault systems that represent the principal structural grain of the region. Despite the overall quiescence, extensional fault opening developed at several sites since 2015, followed by significant vertical subsidence recorded across much of the Western Carpathians in 2018. Similar patterns of tectonic quiescence were observed in the Bohemian Massif, Slovenia, and Bulgaria, indicating that the phenomenon extended over large parts of Central and Southeastern Europe. The temporal evolution of deformation and its correspondence with seismicity suggest that the 2015–2019 hiatus reflects a transient regional-scale reorganisation of the stress field, likely linked to variations in plate-boundary forcing, rather than a response to climatic effects or local processes.
Keywords: faulty activity, extensometric monitoring, seismic quiescence, Central Europe, adriatic microplatee
Published in DiRROS: 23.03.2026; Views: 209; Downloads: 218
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7.
Clinical manifestations of Lyme borreliosis in Europe : Burden of Lyme disease study (BOLD), 2021–2022
Kate Halsby, Alexandra Loew-Baselli, Franc Strle, Anna Moniuszko-Malinowska, Johan Sanmartin Berglund, Viliam Cibik, Dagmar Zakova, 2026, original scientific article

Abstract: Lyme borreliosis (LB), the most common European tick-borne disease, can manifest as an erythema migrans (EM) rash or as disseminated LB. The prospective Burden of Lyme Disease (BOLD) study evaluated the frequency of LB clinical manifestations, including signs, symptoms, and treatment patterns in 14 healthcare practices in endemic regions of six European countries: the Czech Republic, Germany, Poland, Slovakia, Slovenia, and Sweden. Between April 2021 and December 2022, patients with suspected LB were evaluated using predefined case definitions that were applied by investigators to identify medically attended LB cases. Enrolled cases were interviewed about their symptoms. Among the 797 LB cases, 615 (77.2%) had EM and 182 (22.8%) had disseminated disease; 154 of the disseminated cases had Lyme arthritis (LA), five had Lyme neuroborreliosis, and three had Lyme carditis. Geographically, the proportion of disseminated disease varied by country, from 1.1% in Slovenia to 78.0% in Slovakia. Overall, 76.3% of all LB cases in Slovakia were LA. Antibiotic use varied by country, although every country prescribed doxycycline. The frequency of LB manifestations varied substantially between countries. EM was the most common manifestation in all countries except Slovakia, where LA was most common. This study underscores the need for improved prevention strategies.
Keywords: burden of disease, clinical manifestations, disseminated disease, Europe, Lyme borreliosis, Lyme Disease
Published in DiRROS: 20.03.2026; Views: 309; Downloads: 172
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8.
Trends in the epidemiology of paediatric kidney transplantation in Europe between 2010 and 2021 : an ESPN/ERA Registry study
Iris R. Montez de Sousa, Ann Christin Gjerstad, Augustina Jankauskiene, Brankica Spasojević-Dimitrijeva, Burkhard Tönshoff, Cyrielle Parmentier, Diamant Shtiza, Varvara Askiti, György Reusz, Gregor Novljan, 2026, original scientific article

Abstract: Background. Kidney transplantation (KT) is the preferred treatment for paediatric patients with kidney failure, but information on trends in paediatric KT in Europe is lacking. We aimed to report on time trends in paediatric (0–17 years) KT rates and recipient characteristics in Europe between 2010 and 2021. Methods . Thirty-one countries contributing data from 2010 to 2021 on paediatric KT to the European Society for Paediatric Nephrology/European Renal Association Registry were included. We reported trends in KT rates [per million age-related population (pmarp)], overall and by patient subgroup for Europe, and at macro-economic and country-specific levels. We also reported clinical variables in the first year post-KT. The 2020–21 period was analysed separately to account for the COVID-19 pandemic. Results . The paediatric KT rate was stable at ≈5 pmarp between 2010 and 2019, and about one-fourth were pre-emptive KTs. In 2020–21 the KT rate was 5.6 pmarp. In low–, middle– and high–gross domestic product (GDP) countries, KT rates (pmarp) were 2.1, 6.1 and 7.6, respectively, and increased in low-GDP countries by 4.1% per year from 2010 to 2019, mainly in the youngest recipients. The proportion of pre-emptive KT increased only in middle-GDP countries. Low-GDP countries showed a higher prevalence of short stature while high-GDP countries showed more overweight/obese, hypertensive and anaemic patients. Conclusions . The rate of paediatric KT in Europe has remained stable, with differences between GDP groups. Low-GDP countries had the lowest KT rates, but with an increasing trend over time. Opportunities to further increase access to paediatric KT should be explored.
Keywords: epidemiology, Europe, kidney transplantation, trends
Published in DiRROS: 19.03.2026; Views: 225; Downloads: 156
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10.
Current status of newborn screening in Southeastern and Central Europe
Nika Požun, Daša Perko, Violeta Anastasovska, Tadej Battelino, Ana Drole Torkar, Matej Mlinarič, Žiga Iztok Remec, Barbka Repič-Lampret, Domen Trampuž, Mojca Žerjav-Tanšek, Urh Grošelj, 2026, original scientific article

Abstract: Newborn screening (NBS) is a well-established public health program that enables early detection and treatment of rare disorders in newborns, preventing severe complications or death. Despite its recognized importance, the scope and implementation of NBS programs vary across Southeastern (SE) and Central Europe. This study aimed to evaluate the current status of NBS in 16 countries of SE and Central Europe and assess progress since the previous survey in 2021. A structured questionnaire was distributed to national experts between April and December 2025, collecting data on program organization, coverage, diseases included, laboratory methods, confirmatory testing, consent practices, and future expansion plans. All countries reported universal screening for congenital hypothyroidism, except Kosovo, where a national NBS is in the process of being established. Expanded NBS using tandem mass spectrometry was available in Austria, Bulgaria, Croatia, Cyprus, Greece, Hungary, North Macedonia, Romania, and Slovenia. Spinal muscular atrophy screening became universal in Austria, Croatia, Hungary, Serbia, and Slovenia. Most countries reported plans for further expansion, with congenital adrenal hyperplasia, severe combined immunodeficiency, spinal muscular atrophy, and cystic fibrosis being the most frequently targeted conditions. Although notable infrastructural progress has been achieved, financial constraints, lack of staff, and organizational barriers remain key challenges. The study’s assessment of program effectiveness was further limited by the absence of region-wide systems for capturing end-to-end performance indicators, such as the age of the infant at treatment initiation or missed cases. Regional collaboration and adoption of best practices are therefore vital to ensure equitable access and continuous advancement of NBS programs.
Keywords: newborn screening, NBS, Southeastern Europe, Central Europe, neonatal screening, expanded NBS program
Published in DiRROS: 06.03.2026; Views: 306; Downloads: 207
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