281. The Significance of the Phenomenon in Immanuel Kant’s and Edmund Husserl’s Transcendental PhilosophyIrfan Muhammad, 2024, original scientific article Abstract: The article explores the concept of the phenomenon in the transcendental philosophies of Immanuel Kant and Edmund Husserl, arguing for the intricate connections and divergences between their philosophical frameworks. Kant’s transcendental idealism, rooted in the a priori knowledge and the conditions for human cognition, marks a pivotal shift from previous rationalist beliefs in non-empirical knowledge. By emphasizing phenomena as the ultimate objects of human cognition and asserting that the conditions for experience are inherent in the human mind, Kant lays the groundwork for a critical analysis of the relationship between subjectivity and objectivity. In contrast, Husserl’s transcendental phenomenology introduces a methodical approach to uncovering the essence of consciousness and phenomena. Central to Husserl’s transcendental idealism is the concept of intentionality, which serves as a bridge between consciousness and objects of knowledge. Unlike metaphysical idealism, Husserl’s transcendental idealism focuses on the correlation between phenomena and consciousness rather than solely on internal cognitive operations. The article navigates the evolution from Kant’s critical idealism to Husserl’s transcendental phenomenology, highlighting their shared emphasis on phenomena as the focal point of human cognition.
Keywords: phenomenon, Kant, Husserl, transcendental idealism, human cognition
Published in DiRROS: 21.10.2024; Views: 72; Downloads: 17
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282. Kant’s Transcendentalism and Tillich’s Ontological TheologyMindaugas Briedis, 2024, original scientific article Abstract: The article discusses Paul Tillich’s ontology against the background of Kant’s transcendental philosophy, and attempts to show that Tillich criticizes Kant’s critical demarcation of knowledge, on the one hand, and incorporates the categorial forms of Kant’s transcendental philosophy into his ontology, on the other. When constructing the concept of ontology, Tillich uses Kant’s categorical analysis and critique of metaphysics. Thus, Tillich’s approach to Kant’s epistemology is polemical and requires a deeper analysis. Like Kant, Tillich raises the question of what it means to exist and how this existence relates to God. Although Kant’s transcendental dialectic justifies the impossibility of proving God through intellectual operations, the mind can contemplate ultimate reality. For both thinkers, the main problem becomes the application of reason beyond its theoretical competence.
Keywords: Kant, Tillich, transcendental horizon, categories, ontology, finitude
Published in DiRROS: 21.10.2024; Views: 56; Downloads: 17
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283. Population-genetics analysis of the brown trout broodstock in the “Panjica” hatchery (Serbia) and its conservation applicationsTijana Veličković, Aleš Snoj, Jernej Bravničar, Vladica Simić, Radek Šanda, Jasna Vukić, Dovilė Barcytė, David Stanković, Saša Marić, 2024, original scientific article Abstract: Artificial propagation and stocking of brown trout is a standard practice in recreational fishery management. In recent decades, the importance of maintaining intraspecific diversity and protecting locally adapted lineages has been recognized for the species' long-term survival. The first step in selecting donors for stocking involves distinguishing native trout from non-native and introgressed individuals. The established method for discerning Atlantic hatchery strains from the wild populations involves genetic screening of individual diagnostic SNPs and microsatellite assignment tests. This study, using Serbia's Panjica hatchery as an example, illustrates the proper conduct of routine genetic screening for identifying suitable donors for supportive stocking. The broodstock and reference populations were screened using mtDNA control region, LDH nuclear gene, and 12 microsatellite loci to assess the origin, diversity, and inbreeding levels. The analysis revealed only moderate contamination with Atlantic trout and showed the regional origin of the Danubian genes – over 50% of the broodstock was composed of non-introgressed Danubian individuals tracing their origin to the Zapadna Morava River system. Additionally, the study highlighted a considerable discordance between LDH locus and microsatellites in identifying introgressed individuals, raising concerns about the sole reliance on LDH locus for the identification of Atlantic genetic origin in nuclear DNA.
Keywords: molecular marker discordance, artificial propagation, Atlantic brown trout, Danubian brown trout, supplementation stocking, intraspecific diversity, genetic screening, zoology
Published in DiRROS: 21.10.2024; Views: 104; Downloads: 31
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284. A new approach to universal $F$-inverse monoids in enriched signatureGanna Kudryavtseva, Ajda Lemut Furlani, 2024, original scientific article Abstract: We show that the universal $X$-generated $F$-inverse monoid $F(G)$, where ▫$G$▫ is an $X$-generated group, introduced by Auinger, Szendrei and the first-named author, arises as a quotient inverse monoid of the Margolis-Meakin expansion $M(G, X\cup \overline{G})$ of $G$, with respect to the extended generating set $X\cup \overline{G}$, where $\overline{G}$ is a bijective copy of $G$ which encodes the ▫$m$▫-operation in $F(G)$. The construction relies on a certain dual-closure operator on the semilattice of all finite and connected subgraphs containing the origin of the Cayley graph ${\rm Cay}(G, X\cup {\overline{G}})$ and leads to a new and simpler proof of the universal property of $F(G)$.
Keywords: inverse monoid, F-inverse monoid, Margolis-Meakin expansion, group presentation, Cayley graph of a group, closure operator, dual-closure operator, partial action, partial action product
Published in DiRROS: 21.10.2024; Views: 68; Downloads: 24
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286. Mreža občanske znanosti v SlovenijiMitja Vovk Iskrić, 2024, professional article Abstract: Občanska znanost je koncept znanstvenoraziskovalnega dela, ki spodbuja odprt dialog med znanstveno in širšo skupnostjo, s čimer usmerja tudi družbeni razvoj. V Sloveniji je v zadnjem letu doživela pomemben razvoj, zlasti z vzpostavitvijo specializiranega spletnega portala citizenscience.si in nastankom Mreže občanske znanosti. Tudi Evropska unija je prispevala k napredku in vidnosti občanske znanosti, zlasti s financiranjem projektov. Poleg drugih organizacij, kot so muzeji in društva, ter posameznikov tudi univerze in raziskovalni inštituti prispevajo k razvoju občanske znanosti. Širijo in krepijo raziskovalne dejavnosti z vključevanjem javnosti in hkrati tudi izboljšujejo svoj družbeni položaj ter povečujejo zaupanje v znanost. Hkrati zagotavljajo infrastrukturo, znanje, veščine, etične in pravne okvire ter financiranje. V Sloveniji je vključevanje javnosti v znanost dolgoletna tradicija, ki je potekala pod različnimi imeni, dokler se ni utrdil izraz »občanska znanost« kot najprimernejši prevod. Centralna tehniška knjižnica Univerze v Ljubljani (CTK) že od leta 2017 sodeluje pri promociji in razvoju občanske znanosti v Sloveniji, z organizacijo strokovnih srečanj in pozneje tudi neposredno s podporo projektu občanske znanosti. Sodeluje z drugimi organizacijami pri pripravi dogodkov za spodbujanje sodelovanja med raziskovalci in knjižnicami ter širšo skupnostjo in aktivno deluje v mednarodnih organizacijah. V članku so podrobno predstavljeni vsebina portala citizenscience.si, ki ga je razvila Centralna tehniška knjižnica Univerze v Ljubljani, ter ustanovitev in delovanje Mreže občanske znanosti v Sloveniji.
Keywords: odprta znanost, občanska znanost, spletni portali, sodelovanje, Slovenija
Published in DiRROS: 21.10.2024; Views: 85; Downloads: 41
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287. Laser powder bed fusion parameters optimization for enhanced mechanical properties of EOS Co-Cr dental alloyDalibor Viderščak, Zdravko Schauperl, Biserka Runje, Sanja Šolić, Amir Ćatić, Matjaž Godec, Irena Paulin, Črtomir Donik, 2024, original scientific article Abstract: This research explores how variations in laser powder bed fusion (LPBF) parameters—laser power (P), scanning speed (v), and base plate preheating temperature (ϑp)—affect the mechanical properties of the EOS Co-Cr SP2 dental alloy. A central composite design (CCD) was used to optimize the process parameters. Mechanical testing focused on crucial properties for dental applications, including yield strength (Rp0.2), elongation (ε), toughness (KVa), and flexural strength (Rms). Microstructural analysis was conducted using light and electron microscopy, while XRD identified microstructural phases. Statistical analysis (ANOVA, Scheffé post hoc test, α = 0.05) revealed significant effects of P, v, and ϑp on the mechanical properties. Response surface models (RSMs) were developed, and optimal parameters were determined to achieve maximum toughness and flexural strength. Maximum values were obtained with laser power above 205Wand base plate preheating at 310 ◦C. The mathematical model predicted toughness values with less than 5% deviation from experimental results, indicating high accuracy.
Keywords: LPBF, production parameters, Co-Cr dental alloy, CCD, mechanical properties, ANOVA
Published in DiRROS: 18.10.2024; Views: 135; Downloads: 8131
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289. Enhancing magnesium bioactivity for biomedical applications : effects of laser texturing and sandblasting on surface propertiesMarjetka Conradi, Aleksandra Kocijan, Bojan Podgornik, 2024, original scientific article Abstract: Magnesium and its alloys, valued for their lightweight and durable characteristics, have garnered increasing attention for biomedical applications due to their exceptional biocompatibility and biodegradability. This work introduces a comparison of advanced and basic methods—laser texturing and sandblasting—on magnesium surfaces to enhance bioactivity for biomedical applications. Employing a comprehensive analysis spanning surface morphology, hardness, wettability, tribological performance, and corrosion behavior, this study elucidates the intricate relationship between varied surface treatments and magnesium’s performance. Findings reveal that both laser texturing and sandblasting induce grain refinement. Notably, sandblasting, particularly with a duration of 2 s, demonstrates superior wear resistance and reduced corrosion rates compared to untreated magnesium, thereby emerging as a promising approach for enhancing magnesium bioactivity in biomedical contexts. This investigation contributes to a deeper understanding of the nuanced interactions between diverse surface treatments and their implications for magnesium implants in chloride-rich environments, offering valuable insights for prospective biomedical applications.
Keywords: biomaterial, microstructure, hardness, friction/wear, corrosion
Published in DiRROS: 18.10.2024; Views: 124; Downloads: 12375
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290. Seepage detection using passive temperature measurements by fiber optic DTSYaser Ghafoori, 2024, other scientific articles Abstract: This article is an extended abstract of the doctoral dissertation “Optimization of early seepage detection in embankments using a distributed temperature system based on fiber optic sensing” [1]. Distributed Temperature Sensors (DTS) measure temperature precisely with high spatial resolution, enabling seepage flow detection through the interpretation of temperature measurement. Active DTS measurement which introduces heat into the soil to monitor its dissipation, has been extensively studied for seepage detection. However, the potential of passive measurement, which measures natural soil temperature, for seepage detection demands further exploration. The doctoral research investigated the capability of passive DTS measurements for seepage detection. The findings show that passive DTS detects very small temperature variations as a result of the seepage flow. Additionally, the results offer valuable insights into the coupled hydro-thermal behavior and the influence of seepage on heat transfer. The thesis classified and compared different techniques for temperature data calibration and interpretation. Furthermore, an interpretation approach based on numerical simulation and a fully dynamic calibration technique was developed.
Keywords: optical fiber DTS, soil, emperature, seepage
Published in DiRROS: 16.10.2024; Views: 130; Downloads: 42
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