https://uniba.sk/ Najnovšie novinky sk https://uniba.sk/fileadmin/tt_news_article.gif https://uniba.sk/ Najnovšie novinky TYPO3 - get.content.right http://blogs.law.harvard.edu/tech/rss Thu, 31 Dec 2026 00:00:00 +0100 https://uniba.sk/ Thursday 21.5.2026 at 14:00, Lecture room F1 108 doc. RNDr. Pavol Valko, CSc. (Linköping University, Sweden):
Goldene - Single-atom Layer Gold: Prospects for Novel Noble Metallenes Abstract:
Synthesis of monolayer gold has been limited to a few atomic layers stabilized on or inside another material. The bonding nature of metals is the root cause to gold’s tendency to take 3D shapes during all kinds of synthesis, like vapor-phase deposition or precipitation from solutions. However, in 2024, it was demonstrated that free-standing atomically thin 2D sheets of gold, named goldene, can be exfoliated by wet-chemically etching away Ti₃C₂ layers from Ti₃AuC₂ nano-laminated MAX-phase. [1] Ti₃AuC₂ is realized by substituting the Si layer in Ti3SiC2 thin films with Au during high temperature annealing, intercalation, due to eutectic nature of the Au-Si phase diagram. [2] Goldene sheets are then obtained by etching utilizing diluted form of the Murakami’s reagent with surfactant schemes are applied to prevent goldene sheets from coalescing with each other in water suspension. So far only few analytical techniques were used to investigate the properties of goldene. Free-standing goldene sheets observed scanning transmission electron microscopy showed a tendency for curling and agglomeration of goldene, However, ab initio molecular dynamics simulation shows that flat atomic goldene layers are inherently stable. Other than that X-ray photoelectron spectroscopy reveals an Au 4f binding energy increase of 0.88 eV. [1] Proposed applications for goldene include sensors and photocatalyst for water splitting during solar energy harvesting. The use of Au resources would be minimized due to the ultimate surface-area-to-volume ratio for goldene. Isolated three-atomic-layer Au sheets – trilayer goldene – was recently reported by us by selectively removing the Ti₄C₃ sheets from Ti₄Au₃C₃, formed by Au-intercalated Ti₄SiC₃ thin films. [3] Moreover, efforts to isolate other noble metals as for example Ir, Pd, Pt, Rh etc. are well on the way. [1] Kashiwaya, S., Shi, Y., Lu, J. et al. Synthesis of goldene comprising single-atom layer gold. Nat. Synth 3, 744–751 (2024) [2] Fashandi, H., Dahlqvist, M., Lu, J. et al. Synthesis of Ti₃AuC₂, Ti₃Au₂C₂ and Ti₃IrC₂ by noble metal substitution reaction in Ti₃SiC₂ for high-temperature-stable Ohmic contacts to SiC. Nature Mater 16, 814–818 (2017) [3] Shi, Y et al., Synthesis of Ti₄Au₃C₃ and its derivative trilayer goldene through chemical exfoliation.Sci. Adv.11, eadt7999 (2025) ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Marian.Mikula@fmph.uniba.sk Tue, 12 May 2026 16:52:00 +0200 http://https://martinskybehmedikov.jlfuk.sk/en/ [JLF] Kalendár Tue, 12 May 2026 11:45:00 +0200 https://uniba.sk/ The Centre of Continuing Education of Comenius University Bratislava (CCE CU) welcomed forty-six... Education and inclusion at the heart of the programme The mobility programme focused on inclusion, sustainability and digital skills. Following Monday’s welcome session, the senior participants attended a workshop on mobile photography led by Katarína Révayová, followed by a guided tour of Bratislava’s historic city centre in Spanish. Tuesday focused on inclusion, with participants discussing ways of overcoming invisible barriers in education together with Elena Mendelová from the CU Support Centre for Students with Specific Needs. They also learned more about the University of the Third Age at CU and adult education programmes offered through the CCE. Wednesday connected ecology with technology. Participants first shared their experiences via a digital presentation titled Bratislava Through Our Eyes, in which they expressed their enthusiasm for both the university environment and the city itself. They then attended a lecture by Associate Professor Peter Hanajík on sustainability at CU and visited a travelling exhibition presenting student and faculty initiatives contributing to the university’s sustainable development goals. The programme continued with a visit to the Waterworks Museum. The final part of the week included a visit to the House of the European Union and a discussion on lifelong learning. The programme also featured thematic walks to Bratislava Castle and Devín Castle focusing on European values and participation at every age, and concluded with an environmentally themed walk along the banks of the Danube near Devín Castle. Personal stories and motivation for lifelong learning For many of the learners, the University of the Third Age represents a way of staying actively connected with society. Silvestre from Castellón highlighted the importance of social interaction and continuous learning as tools for coping with the transition from working life to retirement. Isabel from Málaga fulfilled a long-held dream of visiting Central Europe during her trip to Bratislava and is currently studying the psychology of emotions back home. Participants Antonia and Victoria from Alicante particularly appreciated the excellent organisation and the atmosphere of the city, which they said exceeded all expectations. Organising such a large-scale event required careful preparation. Nadežda Hrapková, project manager at CCE CU and coordinator of the mobility project, sees similar activities as essential for building a modern Europe. “International mobility in later life demonstrates that education has no age limits. Our guests from Spain brought to Bratislava not only their southern temperament, but also a tremendous enthusiasm for learning and sharing experiences. For our Centre of Continuing Education, it is essential to create a space where European identity is built through genuine encounters and dialogue between generations,” said Hrapková. The Spanish delegation left Bratislava impressed by the hospitality of CCE CU and the carefully prepared programme, which made everyone feel at home. The event confirmed that Erasmus+ programmes are a genuine tool for bringing people together regardless of gender or age. The successful international cooperation will continue beyond this visit. One of the CCE’s upcoming plans is to organise a similar mobility programme for senior learners in cooperation with a partner institution in Poland. Between 8 and 12 June, 2026, eight Slovak participants will travel to Wrocław as part of an Erasmus+ mobility programme. From June 2026 onwards, the centre is also expecting approval of a new KA121 mobility programme under its Erasmus+ Accreditation, running until the end of 2027.]]> [RUK] Titulka - úzke novinky pr@uniba.sk Mon, 18 May 2026 11:14:00 +0200 https://uniba.sk/ We invite you to an event with Tim Szalay from ABYA Genomics, who will openly share what building a... 399 No’s, 1 Yes: The Reality of Building a Startup, which offers an honest, behind-the-scenes look at the journey from an idea to a real company. The event will be of interest to Comenius University students, PhD candidates, and staff who are considering their own project or want to better understand what building a startup looks like in practice. You will learn what matters when searching for product–market fit, how to assemble the right team, and what fundraising really means—including why you often hear many “no’s” before you get one “yes.” Our guest will be Tim Szalay, Founder & CEO of ABYA Genomics, where he focuses on innovation in the life sciences. Tim took his startup from “garage” research to the global stage in San Francisco, and he openly shares what it takes to move from a scientific experiment to a technology startup in Silicon Valley. When: 19 May 2026 | 2 p.m.  - 3 p.m. Where: Meeting Room, Comenius University Science Park Language: English Admission: Free Registration link: https://forms.office.com/e/qy2mgxgXBR We look forward to seeing you!]]> [UVP][Inkubator] Uzke novinky Tue, 12 May 2026 09:14:00 +0200 https://uniba.sk/ From April 20 to 24, 2026, the international DVI (Disaster Victim Identification) exercise PLANE... MUDr. Veronika Rybárová, PhD., from the Institute of Forensic Medicine and Medical Expertises. The exercise simulated a major emergency scenario — an aircraft crash within an urban environment involving multiple casualties — and included both theoretical and practical training focused on the organization, documentation, and identification of victims according to international DVI standards. In addition to participating in the professional activities, Dr. Rybárová also volunteered as a simulated victim during practical search operations conducted by mountain rescue canine teams. Approximately 70 experts attended the event, including teams from Germany, Hungary, Poland, and the Czech Republic. Team compositions changed throughout the exercise, and participants faced highly demanding tasks under simulated air disaster conditions — from searching aircraft wreckage and debris in the field, locating and transporting bodies, and conducting initial examinations and on-site identification procedures, to detailed victim identification under mortuary conditions. The exercise also included the collection of information about missing persons from fictional relatives, followed by the reconciliation process, during which ante-mortem and post-mortem data were compared. The results were subsequently presented before a special tribunal, which determined whether the identity of victims was confirmed, probable, excluded, or could not be established due to insufficient evidence.]]> [JLF] Titulka - úzke novinky milos.hrabovsky@uniba.sk Tue, 12 May 2026 08:53:00 +0200 https://uniba.sk/ Thursday 14.5.2026 at 9:50, Lecture room M 213 Ján Karabáš (FEI STU Bratislava):
Colouring defect of strong snarks Abstract:
A strong snark is a 2-connected cubic graph which is not 3-edge-colourable and remains so after deleting any edge and by suppressing the resulting 2-valent vertices. Strong snarks were introduced by Jaeger in 1985 as a class of cubic graphs that might include counterexamples to the cycle double conjecture, the 5-flow conjecture, or to other related longstanding conjectures. With these conjectures still widely open, strong snarks merit further investigation. In this paper we study colouring defect of strong snarks, an invariant introduced by Steffen in 2015 as the minimum number of edges of a cubic graph left uncovered by any set of three perfect matchings. This invariant provides one of measures of edge uncolourability of cubic graphs recently studied by several authors. Our main result shows that the colouring defect of a strong snark is at least 6, and the bound is best possible. (Joint work with E. Macajova, R. Nedela, and M. Skoviera.)  More information]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Martin.Skoviera@fmph.uniba.sk Mon, 11 May 2026 13:00:00 +0200 http://https://www.jfmed.uniba.sk/en/study/spring-picnic/ [JLF] Kalendár Mon, 11 May 2026 11:21:00 +0200 http://fphil.uniba.sk/en/about-the-faculty/novinky/2026/represent-the-faculty-with-our-new-merch/ The Faculty of Arts of Comenius University introduces a new English-language merch collection –... [FiF] EN Titulka - slider Thu, 07 May 2026 13:51:00 +0200 https://uniba.sk/ You can find all current information about the accommodation process for the upcoming academic year... our website. A detailed description of the accommodation process is available in the Guide to the accommodation process. ]]> [Druzba] Titulka - úzke novinky [Mlyny] Titulka - úzke novinky Thu, 06 Aug 2026 14:43:00 +0200 https://uniba.sk/ Wednesday 13.5.2026 at 14:00, Lecture room F1/364 Ing. Jana Šimeg Veterníková, PhD. (The Institute of Nuclear and Physical Engineering FEI STU, Bratislava):
Long-term operation and degradation mechanism in structural materials of VVER reactors Abstract:
The lecture addresses the current state of nuclear energy and explains the need to extend the operational lifetime of nuclear power plants both in Slovakia and worldwide. In the context of long-term operation (LTO), structural materials are exposed to increased degradation loads, which requires more intensive monitoring and assessment. A key principle of nuclear power plant ageing management is a detailed understanding of the degradation mechanisms affecting structural materials and their systematic control through optimized operation and maintenance. Changes in mechanical properties and microstructure are primarily caused by radiation and thermal ageing, which lead to the gradual embrittlement of materials. Maintaining the integrity of structural materials, particularly in the primary circuit, is a crucial aspect of nuclear safety. These materials form a physical barrier that prevents the release of radioactive substances into the environment. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Jaroslav.Stanicek@fmphunib Thu, 07 May 2026 09:53:00 +0200