1. Monitoring and genetic characterization of historical grapevine varieties (V. vinifera ssp.) from Styria in SloveniaStanko Vršič, Oliver Trapp, Erika Maul, Franco Röckel, Andrej Perko, 2024, izvirni znanstveni članek Ključne besede: V. vinifera L., historical varieties, genetic analyses, Styria, Slovenia
Objavljeno v DKUM: 05.12.2024; Ogledov: 0; Prenosov: 0
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4. Region segmentation of images based on a raster-scan paradigmLuka Lukač, Andrej Nerat, Damjan Strnad, Štefan Horvat, Borut Žalik, 2024, izvirni znanstveni članek Opis: This paper introduces a new method for the region segmentation of images. The approach is based on the raster-scan paradigm and builds the segments incrementally. The pixels are processed in the raster-scan order, while the construction of the segments is based on a distance metric in regard to the already segmented pixels in the neighbourhood. The segmentation procedure operates in linear time according to the total number of pixels. The proposed method, named the RSM (raster-scan segmentation method), was tested on selected images from the popular benchmark datasets MS COCO and DIV2K. The experimental results indicate that our method successfully extracts regions with similar pixel values. Furthermore, a comparison with two of the well-known segmentation methods—Watershed and DBSCAN—demonstrates that the proposed approach is superior in regard to efficiency while yielding visually similar results.
Ključne besede: segment, image analysis, distance metric, Watershed, DBSCAN
Objavljeno v DKUM: 05.12.2024; Ogledov: 0; Prenosov: 0
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5. Monitoring and genotyping of wild grapevine (Vitis vinifera L. subsp. sylvestris) in SloveniaAndrej Perko, Oliver Trapp, Erika Maul, Franco Röckel, Andrej Piltaver, Stanko Vršič, 2024, izvirni znanstveni članek Ključne besede: wild grapevine, SSR markers, conservation, genetic fingerprinting, Slovenia
Objavljeno v DKUM: 05.12.2024; Ogledov: 0; Prenosov: 2
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6. Short communication: The orientation of cubicles plays a role – greater deviation from the north-south direction, more technopathies in dairy cowsMaja Prevolnik Povše, David Slatinek, Ines Kramberger, Doris Filipič, Jože Starič, Andrej Toplak, Urška Erker, Andrej Mergeduš, Dejan Škorjanc, Janko Skok, 2024, izvirni znanstveni članek Ključne besede: cattle, magnetic alignment, stall equipment, animal welfare
Objavljeno v DKUM: 04.12.2024; Ogledov: 0; Prenosov: 2
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7. Comparative Study of GPR Acquisition Methods for Shallow Buried Object DetectionPrimož Smogavec, Blaž Pongrac, Andrej Sarjaš, Venceslav Kafedziski, Nabojša Dončov, Dušan Gleich, 2024, izvirni znanstveni članek Opis: This paper investigates the use of ground-penetrating radar (GPR) technology for detecting shallow buried objects, utilizing an air-coupled stepped frequency continuous wave (SFCW) radar system that operates within a 2 GHz bandwidth starting at 500 MHz. Different GPR data acquisition methods for air-coupled systems are compared, specifically down-looking, side-looking, and circular acquisition strategies, employing the back projection algorithm to provide focusing of the acquired GPR data. Experimental results showed that the GPR can penetrate up to 0.6 m below the surface in a down-looking mode. The developed radar and the back projection focusing algorithm were used to acquire data in the side-looking and circular mode, providing focused images with a resolution of 0.1 m and detecting subsurface objects up to 0.3 m below the surface. The proposed approach transforms B-scans of the GPR-based data into 2D images. The provided approach has significant potential for advancing shallow object detection capabilities by transforming hyperbola-based features into point-like features.
Ključne besede: GPR, UAV, SFCW radar, acquisition methods
Objavljeno v DKUM: 04.12.2024; Ogledov: 0; Prenosov: 0
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8. Changes in the extracellular matrix in endometrial and cervical cancer : a systematic reviewTjaša Padežnik, Anja Oleksy, Andrej Cokan, Iztok Takač, Monika Sobočan, 2023, pregledni znanstveni članek Opis: Endometrial and cervical cancers are the two most common gynaecological malignancies and among the leading causes of death worldwide. The extracellular matrix (ECM) is an important component of the cellular microenvironment and plays an important role in developing and regulating normal tissues and homeostasis. The pathological dynamics of the ECM contribute to several different processes such as endometriosis, infertility, cancer, and metastasis. Identifying changes in components of ECM is crucial for understanding the mechanisms of cancer development and its progression. We performed a systematic analysis of publications on the topic of changes in the extracellular matrix in cervical and endometrial cancer. The findings of this systematic review show that matrix metalloproteinases (MMP) play an important role impacting tumour growth in both types of cancer. MMPs degrade various specific substrates (collagen, elastin, fibronectin, aggrecan, fibulin, laminin, tenascin, vitronectin, versican, nidogen) and play a crucial role in the basal membrane degradation and ECM components. Similar types of MMPs were found to be increased in both cancers, namely, MMP-1, MMP-2, MMP-9, and MMP-11. Elevated concentrations of MMP-2 and MMP-9 were correlated with the FIGO stage and are associated with poor prognosis in endometrial cancer, whereas in cervical cancer, elevated concentrations of MMP-9 have been associated with a better outcome. Elevated ADAMTS levels were found in cervical cancer tissues. Elevated disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) levels were also found in endometrial cancer, but their role is still unclear. Following these findings, this review reports on tissue inhibitors of ECM enzymes, MMPs, and ADAMTS. The present review demonstrates changes in the extracellular matrix in cervical and endometrial cancers and compared their effect on cancer development, progression, and patient prognosis.
Ključne besede: extracellular matrix, endometrial cancer, cervical cancer
Objavljeno v DKUM: 02.12.2024; Ogledov: 0; Prenosov: 0
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9. Determination of neutron flux redistribution factors for a typical pressurized water reactor ex-core measurements using Monte Carlo techniqueTanja Goričanec, Bor Kos, Klemen Ambrožič, Andrej Trkov, Luka Snoj, Marjan Kromar, 2023, izvirni znanstveni članek Opis: In a typical pressurized water reactor, neutron detectors located outside the reactor core monitor reactor power. In addition, they are also used to measure the reactivity of the control rods. A novel approach to calculate the ex-core neutron detector response in a typical pressurized water reactor using the Monte Carlo technique is presented. A detailed ex-core model of the Krško nuclear power plant was developed using the Monte Carlo neutron transport code MCNP. Due to the location of the ex-core neutron detectors, the hybrid code ADVANTG is used to generate variance reduction parameters to accelerte the convergence of the results outside the reactor core. To use ADVANTG, the fixed neutron source had to be reconstructed from the criticality core calculation. This paper presents the sensitivity analysis of the response of the ex-core detectors to the neutron data libraries used, the description of the fixed neutron source and the ADVANTG parameters. It was found that a pin-wise description of the neutron source for at least two rows of fuel assemblies at the core periphery is necessary for accurate results. Our results show the importance of a correct description of the prompt neutron spectra in the high energy region and the impact this has on the response of the ex-core detectors. The method in which the prompt neutron fission spectra for important fission nuclides are weighted by the calculated reaction rates has been shown to be the best approximation, with deviations from the reference calculation within statistical uncertainty. The effect of nuclear data libraries on the response of the ex-core detector was investigated, and the difference between the ENDF/B-VII.0 and the ENDF/B-VIII.0 nuclear data libraries was ∼11%. When the deficient evaluation of the 56Fe isotope included in the ENDF/B-VIII.0 nuclear data library was replaced by the improved evaluation from the IAEA INDEN project, the differences decreased to ∼3.7%. In addition, neutron flux redistributions due to control rod movement were investigated and flux redistribution factors were updated using Monte Carlo particle transport methods. The reaction rate redistribution factors obtained with methods presented in this paper are within 1% agreement with the currently used factors.
Ključne besede: MCNP, ADVANTG, pressurized water reactor, Monte Carlo neutron transport, control rod, neutron flux redistribution factor, rod insertion, krško nuclear power plant
Objavljeno v DKUM: 29.11.2024; Ogledov: 0; Prenosov: 2
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10. Innovative professional learning communities and sustainable education practices through digital transformationMaja Vičič Krabonja, Simona Kustec, Vesna Skrbinjek, Boris Aberšek, Andrej Flogie, 2024, izvirni znanstveni članek Opis: Education is the most important part of sustainable society development. Traditional
approaches to permanent lifelong educator training often fail to produce lasting changes in teaching
practices (UN, Goal 4). This paper examines how educator involvement in a professional learning
community (PLC) ensures equitable quality education and promotes lifelong learning opportunities
for all and a sustainable digital transformation of the teaching and learning process. Participation in
PLC and the use of contemporary learning environments positively impact the quality of educators’
work, thereby enhancing the overall educational process. This study utilised a quantitative methodology, employing both descriptive and inferential statistics to analyse the data. Results indicate
that a balanced integration of formal PLC structures and guidance, combined with elements of a
non-formal, broader PLC and external incentives and support (such as projects), can surpass mere
exchanges of best practices, foster innovation, and support the sustainable digital transformation
of educators. This approach leads to a sustainable shift in pedagogical paradigms. The PLC_IP
model (focused on including digital technologies and effective teaching strategies) enhances collective
educator efficacy, contributing to improved teaching quality. For PLCs to achieve sustainability, they
must be dynamic entities that adapt to the evolving educational landscape, ensuring their continued
relevance and impact with rising completion rates over time. Our findings underscore the importance
of innovative PLCs in driving sustainable educational development and improvement and provide a
framework for future research and practical applications in educational settings. In addition, PLCs
can strengthen the means of implementation and revitalise the global partnership for sustainable
development (UN, Goal 17).
Ključne besede: professional learning communities, ESD, training, sustainable changes, sustainable education, education practices, schools
Objavljeno v DKUM: 27.11.2024; Ogledov: 0; Prenosov: 0
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