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/ update from 25 NOV 2021 - on vaccination against Covid-19,
- overcoming Covid-19,
- negative PCR / Ag test,
- possibly by performing a test/self-test directly at the employer. We will inform you about the PHO SR decree and testing conditions immediately after its publication. ]]> [LF] Titulka - široké novinky Mon, 29 Nov 2021 08:19:00 +0100 https://uniba.sk/ Bratislava, 26 November 2021: Comenius University Bratislava set aside nearly one quarter of a... "Our group actively collaborates in two world-leading neutrino experiments: Baikal-GVD, to detect high energy cosmic neutrinos in Lake Baikal; and the JUNO experiment located in the Jiangmen underground lab. The latter will detect antineutrinos from two nuclear reactors which are 53 km away, neutrinos originating in the fusion reactions of light nuclei in the Sun, and low-energy neutrinos created in the Earth's atmosphere due to cosmic radiation," says Amina Khatun. "Comenius University has a vibrant environment for higher education and cutting-edge research," she says of her motivation to apply for the stay. Successful candidates include young scientists under 35 years of age from Belgium, Iran, France, India, Poland, Tunisia, the Czech Republic, and also from Slovakia. One postdoctoral researcher has joined the group of Radovan Šebesta to help develop the synthesis of catalytically and biologically active compounds using mechanochemistry. "At modern universities abroad doctoral and postdoctoral researchers form the bulk of their research capacity. In Slovakia, unfortunately, the concept of postdoctoral researcher had until recently been virtually unknown. At the same time, a healthy circulation of people among universities and countries is extremely important because it contributes to an exchange of experience and ideas. It enriches both the researchers and our home environment. I therefore consider the postdoctoral initiative of Comenius University to be very useful and I hope it will continue," said Radovan Šebesta, Professor at the Faculty of Natural Sciences of Comenius University. The university allocated about €700,000 for the programme and planned to fill 21 positions in various fields of science. Eventually, thirteen candidates succeeded in the selection process. Most of them, six, will work at the Faculty of Natural Sciences, five candidates will join the Faculty of Mathematics, Physics and Informatics, and one candidate each will be hosted by the Faculty of Arts and the Faculty of Social and Economic Sciences of Comenius University. The faculties will annually receive 18,624 euros to help cover two thirds of each postdoctoral researcher’s salary.  The remaining third will be paid by the faculty. "I am pleased that in the first year eight of our faculties showed interest in creating a postdoctoral position. Although we did not manage to fill all the positions, I am convinced that this is a good start. I believe that the number of these positions will increase in the coming years. This is one of the ways in which we open up to the world,” said the Rector of Comenius University Marek Števček.]]> [RUK] Titulka - úzke novinky [RUK] Tlačové správy [RUK] Tlačové správy EN pr@uniba.sk Fri, 26 Nov 2021 09:30:00 +0100 https://uniba.sk/ v piatok 26.11.2021 o 13:00 hod. v miestnosti M/X aj online formou Martin Mačaj:
Doing AGT with computers (part III) MS Teams (AGT in Bratislava team, scheduled meeting)
Abstract:
We will show use group actions in GAP. We will (re)discover various properties of triangular graphs and their complements.
  Thanks to (temporary?) loosening of restrictions regarding the COVID epidemy, we intend to conduct the seminar meetings this semester `in-person'. Hence, all of you who might choose to attend in person are welcome. Those of you who are not able to attend in person or who are still uncertain about the safety of attending in person are welcome to attend via MS Teams. In either case, we hope to see as many of you as possible (either in person or virtually) at our Friday gatherings.]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Martin.Macaj@fmph.uniba.sk Thu, 25 Nov 2021 22:40:00 +0100 https://uniba.sk/ Thursday 25.11.2021 at 9:50, online Fatemeh Moftakhar, Iran:
Some bounds on the energy of graphs MS Teams Access code to MS TEAMS: gglxxc7
(Access code for Comenius University only)
Abstract:
The energy of a graph G, E(G), is the sum of absolute values of the eigenvalues of its adjacency matrix. This concept was first introduced by Gutman in 1978. In this talk, we try to present some lower and upper bounds for the energy of graphs and present their structural and spectral properties and also present some open conjectures in this area.
More information]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Martin.Skoviera@fmph.uniba.sk Tue, 23 Nov 2021 22:29:00 +0100 https://uniba.sk/ Bratislava, 23 November 2021: On the occasion of the International Students’ Day, the Rector of... Jana Cihanová is a student of civil law who presented a realistic proposal for the revival of tourism in Slovakia after the pandemic in the Youth Embassy category, including a financial plan. Jakub Martinček, a student of teaching of pedagogy and music, received the award for his research of how high school students could perform extra-curricular activities and use their free time productively during the COVID-19 pandemic. Petra Lenčová who studies pharmacy also received the award. Her research of ischemia-reperfusion injury to organs in relation to kidney transplants won prizes in several competitions. Pavol Vigláš is four-time organizer of the Martinský beh medikov charity run of medical students from Martin who also participated in the organization of the Festival of Medical Students under the motto of 'Live and Let Live', linking sports, entertainment and culture with social life. Several students received the award for their successes in sports. One of them is Veronika Vadovičová, a student of sports coaching, who has represented Slovakia in sport shooting for a number of years. So far, she participated in six Paralympic Games and her medal collection includes four gold medals from Rio de Janeiro, Beijing and Tokyo, one silver medal from Rio and a bronze medal from London. She holds the Paralympic record in the mixed 50 metre rifle prone discipline. Biochemistry student Patrícia Guspanová received the award for her second place in the C1 women 1000 metre and 500 metre categories and for her victory in the C1 women 200 metre category at the Slovak Canoe Sprint Championship. The Rector of Comenius University presented the award for supporting the scientific, artistic or professional activities of their students to thirty teachers, including one in memoriam. Among them are surgeon and transplantologist Ľudovít Laca, historian Eva Škorvanková, sports physiologist and fitness popularizer Viktor Bielik, and theoretical physicist and popularizer of science Juraj Tekel. The late computer scientist and IT teacher Peter Tomcsányi received the award in memoriam for participating in the international committee of the iBobor competition. "Those students who, in addition to their study duties, devote their time to research, social issues or sports, and spread the good name of our university, deserve our recognition. Every day, they receive support from teachers who are their tutors, mentors and role models. I am pleased that I can thank them all for representing our alma mater in this way, on the occasion of the International Students’Day," said the Rector of Comenius University Marek Števček. Full list of awarded students and teachers (PDF document) - in the Slovak language]]> [RUK] Titulka - úzke novinky [RUK] Tlačové správy [RUK] Tlačové správy EN pr@uniba.sk Wed, 24 Nov 2021 09:23:00 +0100 https://uniba.sk/ Friday 26.11.2021 at 11:00, Lecture room M/213 Karina Chudá:
Usefullness of information in formal grammars

web: https://beda.dcs.fmph.uniba.sk/seminar]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Rastislav.Kralovic@fmph.uniba.sk Mon, 22 Nov 2021 17:31:00 +0100 https://uniba.sk/ Students will be able to sign up for examinations of winter semester in the AIS2 system from 4th... [FaF] Titulka - široké novinky studijne@fpharm.uniba.sk Tue, 23 Nov 2021 09:30:00 +0100 https://uniba.sk/ Faculty of Management, Comenius University received prestigious award in 2021 in the Eduniversal... The award ceremony took place on November 17-19, 2021.]]> [FM] Titulka - úzke novinky Fri, 19 Nov 2021 18:25:00 +0100 https://uniba.sk/ Thursday 2.12.2021 at 14:00, Lecture room M 223 Radoslav Hurtiš:
The Elder problem with reactive infiltration effects Abstract:
The occurrence of buoyancy-driven flow and reactive solute transport in a fluid-saturated porous medium can be induced by either various human activities or natural processes. A typical example is groundwater salinization in coastal carbonate aquifers. In the current work, using the Elder problem geometry, we consider a two-dimensional porous-medium model with local chemical interactions between the solute and a mineral structure of the solid, in which the solute and the minerals are consumed and reaction products in the liquid are generated without any dissolution effects on porosity and permeability. Based on the model, we analyze and explain the impact of the geochemical processes on the flow and mass transport. For the reactive system in the regime dominated by the diffusive mass transport, we find a decrease in the net solute concentration compared to the non-reactive case. This decrease is pronounced at higher values of the Damk\"ohler number when the solute reaction rate becomes larger than the solute diffusion rate. Furthermore, we find that the structure of the flow is affected by the products present in the system when the Rayleigh number for the products is sufficiently high. In that case, numerical simulations show the formation of diluted fluid tongues exhibiting damped periodic oscillations about a non-zero mean. The pseudospectral code used to obtain the numerical simulations was verified against an analytical solution for a non-reactive and purely diffusive case. More information]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Pavol.Quittner@fmph.uniba.sk Thu, 18 Nov 2021 16:35:00 +0100 https://uniba.sk/ Tuesday 23.11.2021, at 14:00 hod., Lecture room F2/125 Adam Smetana (Institute of Experimental and Applied Physics, CTU in Prague):
Hearing solar wind by space-based gravitational wave antennas Abstract: 
Recently we have identified a possible source of noise for the space-based gravitational wave antennas, in particular for the Laser Interferometer Space Antenna (LISA), caused by time variations of the refractive index of the interplanetary space due to variations in the electron number density of the solar wind. We will present an update of the analysis. Mariia Petropavlova (Institute of Experimental and Applied Physics, CTU in Prague):
Corrections to the photon index of refraction due to neutral Dirac fermions with magnetic dipole moment Abstract:
One of the Big Bang Cosmology predictions tells us that the Universe is filled with a background of neutrinos, analogous to the cosmic microwave background. If neutrinos have a magnetic moment, then photons passing through the CNB should experience interactions with these relic neutrinos. That would result in the correction to the corresponding photon index of refraction. It is our goal to estimate the size of the CNB correction to the photon index of refraction and its dependency on the energy of the photon beam. We present here our first step when we assume a medium made of neutral Dirac fermions with magnetic dipole moment only. The effect is calculated as a quantum loop correction to the photon polarization tensor using thermal quantum field theory and its real-time formalism. We analyze two benchmark cases: The first case is analogous to the CNB medium, where we show a zero effect. The second case is analogous to a fully degenerate neutron component of neutron star, where we find either zero or non-zero effect depending on the particular values of parameters. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Peter.Matak@fmph.uniba.sk Thu, 18 Nov 2021 14:10:00 +0100