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 30.4.2026 at 14:00, Lecture room M 223  Philippe Souplet (Université Sorbonne Paris Nord):
Classification of entire and ancient solutions of the diffusive Hamilton-Jacobi equation Abstract:
We study the Liouville type classification and symmetry properties, in Rⁿ and in a half-space with Dirichlet boundary conditions, for entire and ancient solutions of the diffusive Hamilton-Jacobi equation, which arises in optimal stochastic control, in KPZ type models of surface growth and in studies of gradient blow-up. In particular we obtain the optimal Liouville type theorem for ancient solutions in Rⁿ and we completely classify entire solutions in a half-space. The proofs rely on new and optimal, local estimates of Bernstein and Li-Yau type, combined with integral estimates, a translation-compactness procedure and comparison arguments. This is a joint work with Loth Chabi. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Pavol.Quittner@fmph.uniba.sk Thu, 23 Apr 2026 17:57:00 +0200 https://uniba.sk/ Wednesday 29.4.2026 at 14:00, Lecture room F1/364 Ing. Róbert Horúcka Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava; JAVYS, a. s.):
Processing of Spent Radioactive Ion-Exchange Resins (Sorbents) from Operation and Decommissioning of Nuclear Facilities
Abstract:
This presentation provides an overview of activities performed within the operation of the nuclear facility Technologies for Processing and Treatment of Radioactive Waste (TSÚ RAO). The activities involve the application of both conventional and innovative technological approaches, taking into account current operational needs and applicable legislative and regulatory requirements. Modern solutions primarily include technologies for the processing of bulk radioactive waste, thermal treatment of combustible radioactive waste, and processing of metallic radioactive waste, as well as other innovative approaches implemented to enhance the overall efficiency of radioactive waste management processes. The objective of processing spent sorbents and other types of radioactive waste is to achieve suitable waste forms of very low-level waste (VLLW) and low-level waste (LLW) that comply with technical, safety, and regulatory requirements for subsequent handling, transport, and final disposal. The presentation outlines current technological practices, operational experience, and opportunities for further development of technologies related to the management of this specific category of radioactive waste. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Jaroslav.Stanicek@fmph.uniba.sk Thu, 23 Apr 2026 17:47:00 +0200 https://uniba.sk/ Recent developments in the Middle East have once again turned attention towards Iran. Yet the... For centuries, Europeans spoke of Persia, whereas today the country is known as Iran. What prompted this change in 1935? The name Persia is an exonym – a label used from outside, which Europe adopted from the ancient Greek term Persis. In the country itself, the term Erān, meaning the land of the Aryans, was used. In 1935, Shah Reza Pahlavi officially asked the international community to stop using the name Persia. He wanted to emphasise national identity and show that Iran was not some exotic land, but a modern, self-assured state proudly rooted in its own history and identity. Many people in Central Europe tend to place Iranians and Arabs in the same category. Why is that wrong? It is a fundamental misunderstanding. If you call an Iranian an Arab in Tehran, they will most likely be deeply offended. Arabs are of Semitic origin, while Iranians have Indo-Iranian roots. Although they adopted Islam after the Arab expansion in the 7th century, Iranians, unlike the peoples of Egypt or Mesopotamia, preserved the Persian language and maintained their state structures. They are immensely proud that their cultural strength outlasted the fall of empires. That pride still clearly sets them apart from their Arab neighbours, such as Iraq or Saudi Arabia. You mentioned that Iran retained its distinct character even after adopting Islam. It also differs from most of the Muslim world because in Iran, Shiite Islam predominates. What is the main difference between Shiites and Sunnis, who form the global majority? That is another key pillar of Iranian identity. The split between Sunnis and Shiites emerged shortly after the death of the Prophet Muhammad and at its core was a dispute over who should lead the Muslim community. Sunnis believed the leader should be chosen from among the Prophet’s closest followers on the basis of ability, while Shiites held that leadership could belong only to a blood relative of the Prophet. In Iran, Shiism became crucial in the 16th century under the Safavid dynasty, when it was declared the state religion. This was no accident. The Safavid rulers wanted to draw a clear line separating Iran and the Sunni Ottoman Empire. Over time, Shiism gave Iranians a strong sense of distinctiveness and became inseparable from their statehood, something that remains evident to this day. You have visited Iran several times. What has your personal experience been? Iranian hospitality is legendary and, to us, sometimes almost hard to believe. As an academic, I found doors open everywhere. People I had known only briefly would often invite me to their homes for dinner. For them, this is not just a polite formula. It was in family settings that I saw the greatest paradox: outwardly, a strict Islamic republic; behind closed doors, often educated and critically minded people with the same hopes and aspirations as we have. That contradiction never appears in television news coverage. This strong sense of identity and exceptionalism came into conflict with the ambitions of major powers in the 20th century. Looking at modern history, when did the tall barrier between Iran and the West that we see today begin to take shape? The relationship between Iran and “the West” evolved over a long period, marked by both brighter and darker moments. The overthrow of Prime Minister Mossadegh was a turning point above all in relation to the United States, rather than to the West as a whole. That was the moment when the US became the decisive outside power shaping developments in Iran. Later, the overthrow of Mossadegh came to be seen by many Iranians as a kind of “Munich diktat” - a moment when decisions about their country were made without them. It confirmed their belief that the US was not truly interested in promoting democracy, but above all in controlling resources. That historical trauma remains very much alive and continues to shape Iranian foreign policy today. Paradoxically, that overthrow of democracy in 1953 helped pave the way for the Islamic Revolution a quarter of a century later. Yet when we watch archive footage of Tehran in the 1960s and 1970s, it looks strikingly modern and Western. Was the regime really as nice as those nostalgic images suggest? This image of a “golden age” is highly selective, and such archive footage is now often used as a propaganda tool. It creates the impression that pre-1979 Iran was a flawless paradise, which is an appealing but distorted vision for younger generations. The reality was far more complex. Modernisation under Shah Mohammad Reza Pahlavi may have looked pro-Western on the surface, but its benefits were largely limited to a narrow urban and political elite. Much of the country faced social injustice, high inflation and repression at the hands of the SAVAK secret police. It was precisely this accumulated tension that brought together almost everyone in opposition to the regime in 1979, from reformists to communists, alongside the Shiite clergy. In the end, the clerics led by Khomeini simply took control of that broad resistance and used it to their advantage. Nearly half a century has passed since the 1979 revolution, and Iran’s relations with the world have gone through various phases, from total isolation to a brief period of de-escalation after the 2015 nuclear deal. Today, however, we are witnessing open and direct conflict involving Iran, Israel and the United States. Where do you think this is heading? We are now at a point where years of mounting tension have led to the present situation. What began as indirect pressure has become direct confrontation between states. On one side stands Iran’s ruling theocratic establishment and the Revolutionary Guards; on the other, the Republican-led United States and Israel’s nationalist conservative government. Paradoxically, external pressure and sanctions partly suit the Iranian regime, which uses them to mobilise domestic support and cast itself as the defender of the nation against an outside enemy. At the same time, developments across the Middle East, and above all the most recent events in Palestine, have accelerated this escalation and pushed the region into a dangerous phase unlike anything we have seen before in such a direct form. One can only hope that current diplomatic efforts to contain the conflict will succeed. As things stand, however, no analyst can predict the eventual outcome. You were in Tehran in 2020, when General Soleimani was killed. How did you experience that moment? At the time, some international and Slovak media expected the conflict to spiral out of control. Friends and family in Slovakia called in alarm, urging me to leave immediately. But the Iranians themselves were completely calm. They told me: “Nothing will happen, you’ll see. People will go into the streets, and in a few days everything will settle down again.” They were right. Iranians are used to crises. It showed me the enormous gap between how such threats are perceived from the outside and how they are lived by the society there. Do you think there is any real chance of internal change in Iran in the foreseeable future, or are the structures of the state too strong to be seriously undermined? There is deep dissatisfaction in society, especially among young people. But the system is also highly interconnected in structural and power terms. History teaches us that change tends to come from within, when a state begins to collapse under the weight of its own corruption and economic ineffectiveness. Military intervention from outside rarely brings stability; more often, it rallies the country around the existing leadership. Iran is far too complex a culture for simple solutions imposed by external actors.  Eva Kopecká]]> [RUK] Titulka - úzke novinky [FiF] Titulka - široké novinky pr@uniba.sk Thu, 23 Apr 2026 11:03:00 +0200 https://uniba.sk/ Monday 27.4.2026 at 13:10, Lecture room I 9 Negin Bagheri:
CADO: A Lightweight QoS-Aware Runtime Offloading Mechanism for Multi-Layer Service Execution across the Device–Fog–MEC–Cloud Continuum
Abstract:
Modern distributed IoT and AI-oriented applications increasingly rely on latency-sensitive service execution across heterogeneous edge–cloud infrastructures. In such environments, deciding where a task should run is a system-level QoS challenge, since runtime performance depends not only on computational capacity, but also on communication delay, queue buildup, congestion, and deadline feasibility. This work presents CADO (Congestion-Aware Deadline-Driven Offloading), a lightweight and interpretable runtime offloading mechanism for a four-layer Device–Fog–MEC–Cloud continuum. For each arriving task, CADO estimates end-to-end completion time at each candidate layer and first selects the best deadline-feasible option; when no safe option exists, it applies a risk-aware fallback rule. Unlike learning-based approaches, CADO requires no training phase or centralized optimization. The mechanism is evaluated in a discrete-event simulation under nominal conditions and two stressed scenarios, including infrastructure degradation and AI-heavy workloads. The results show that CADO remains competitive under nominal conditions while improving latency and deadline robustness under stress. This work forms an important part of my doctoral research and provides the system-level foundation for future extensions toward Federated Learning over the same multi-layer infrastructure.  More information Youtube channel ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Damas.Gruska@fmph.uniba.sk Thu, 23 Apr 2026 08:30:00 +0200 https://uniba.sk/ Bratislava, 22 April 2026: Comenius University Bratislava (CU) is launching the first accredited... “This initiative advances Comenius University’s strategic goals in lifelong learning, internationalisation, innovation and social responsibility. At the same time, it represents a unique link between academic excellence and humanity and empathy,” Rector Marek Števček said. “We are seeing the growing importance of communication skills not only among healthcare professionals, but also among everyone involved in caring for patients and their family members. Humour has been shown to improve communication, build trust, ease tension and strengthen mutual understanding. Healthcare clowns were there at the birth of this project, and they have an established place in hospitals. Our faculty brought teachers and researchers into the initiative and places strong emphasis on educational quality,” explained Juraj Payer, Dean of the CU Faculty of Medicine. “What makes this programme exceptional is that it introduces a scientific approach to a topic that is often seen as intuitive. Humour has a healing effect in healthcare settings: it reinforces humanity in difficult situations. I am proud that Comenius University is the first university in Slovakia to open the way for this kind of education,” said Associate Professor Michaela Kostičová, the programme’s academic lead from the CU Faculty of Medicine in Bratislava. "The programme is hybrid in nature, combining online instruction with an experiential workshop in Bratislava. Participants can earn 2 ECTS credits for the online portion and 1 ECTS credit for the in-person workshop, with these components available to be completed either independently or as a whole. They will also receive a digital EduBadge certificate, which is internationally verifiable according to European Commission standards," explained CU Vice-Rector Eva Viglašová. “As professional healthcare clowns from RED NOSES, we have been bringing clowning and humour to healthcare facilities in Slovakia for more than 20 years, with the aim of supporting patients’ mental well-being and the treatment process itself. We are pleased that, thanks to the ENLIGHT alliance, we have the opportunity to pass on our experience of healthcare clowning to participants in this programme and, in this way, also contribute to making healthcare more humane,” said Milan Chalmovský, healthcare clown and lecturer at RED NOSES Clowndoctors civic association.]]> [RUK] Titulka - úzke novinky [RUK] Tlačové správy pr@uniba.sk Thu, 23 Apr 2026 14:42:00 +0200 https://uniba.sk/ Friday 24.4.2026 at 13:15, Lecture room M IX (online too) Martin Bachratý (Slovak University of Technology, Bratislava):
Skew morphisms of cyclic 2-groups MS Teams
Abstract:
Skew morphisms are permutations of finite groups that generalise group automorphisms, and they lie at the intersection of map theory and group factorizations. The classification and enumeration of skew morphisms for various families of finite groups is a central problem in the area, and has been carried out for several notable families, including simple groups, dihedral groups, and cyclic p-groups with p odd. The case of cyclic 2-groups has resisted the same treatment — until now. After explaining the connections between Cayley maps, group factorizations, and skew morphisms, we present a complete enumeration of skew morphisms of cyclic 2-groups, completing the enumeration for all cyclic p-groups by treating the remaining case p=2. The speaker acknowledges funding from the EU NextGenerationEU through the Recovery and Resilience Plan for Slovakia under the project No. 09I03-03-V04-00272. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Martin.Macaj@fmph.uniba.sk Tue, 21 Apr 2026 15:47:00 +0200 http://https://fphil.uniba.sk/en/about-the-faculty/novinky/2026/slovensko-patri-medzi-najviac-uzavrete-informacne-prostredia-v-europe/ Slovak society shows the highest level of retreat into information bubbles among six European... [FiF] EN Titulka - slider Tue, 21 Apr 2026 12:35:00 +0200 http://https://www.fpharm.uniba.sk/en/education/master-study/pharmacy-in-english/state-exams-and-theses/ We hereby inform the chairpersons and members of examination committees that the regular State... [FaF] Titulka - široké novinky [FaF] Kalendár Tue, 21 Apr 2026 11:46:00 +0200 https://uniba.sk/ 21 April 2026, 9:00, Faculty of Physical Education and Sport, Comenius University Bratislava,... Registration is open via an online form until 17 April 2026. The event is organised by ELSA Bratislava in cooperation with the Comenius Running Club.]]> [RUK] Kalendár pr@uniba.sk Wed, 08 Apr 2026 10:46:00 +0200 https://uniba.sk/ Thursday 23.4.2026 at 9:50, Lecture room M 213 Valter Cingel:
Uniform routings of shortest paths in graphs with large automorphism groups Abstract:
In this presentation, we focus on uniform routings of shortest paths in graphs and their relationship to structural symmetry. Given a connected graph $\Gamma$ with $n$ vertices, a routing is a collection of $n(n-1)$ oriented paths joining every ordered pair of distinct vertices. If all these paths are shortest paths and every vertex appears as an inner vertex in the same number of paths, the routing is called a \emph{uniform routing of shortest paths} (briefly, URSP). The main goal of our research is to investigate which structural and symmetry conditions ensure the existence of a URSP. Graphs with large (at least vertex-transitive) groups of automorphisms can be considered to contain a lot of structural symmetry. Therefore, we focus on the relationship between large automorphism groups and the existence of URSPs. Moreover, some of our results do not assume large automorphism groups, and they demonstrate that URSPs can arise independently of the automorphism symmetry. We devote particular attention to Moore graphs. We prove that Moore graphs of odd girth admit a unique URSP and that Moore graphs of even girth with a Hamiltonian cycle also admit a URSP. This leads to the existence of regular graphs that are not vertex-transitive, but nevertheless admit a URSP. We also focus on geodetic graphs which are defined to have just a single unique shortest path between every pair of vertices. We present a classification of planar geodetic graphs with respect to the existence of a URSP. Finally, we construct infinite families of graphs admitting a URSP that are neither vertex-transitive nor regular. (Joint work with Róbert Jajcay.)  More information]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Martin.Skoviera@fmph.uniba.sk Mon, 20 Apr 2026 11:50:00 +0200