Česko-slovenská študentská vedecká konferencia vo fyzike

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Vasyl Cherlinka - Michal Gallay - Yuryi Dmytruk

The textbook is a practical guide to predictive mapping of soil types and properties in R. It bridges digital soil mapping theory with hands-on practice, covering the full workflow from data acquisition and preprocessing to validation and uncertainty quantification. Early chapters introduce the tidyverse ecosystem and the sf and terra packages for spatial data handling. Subsequent parts address modelling of categorical variables (soil types/WRB) and continuous variables (soil organic carbon) using Random Forest, Cubist, and Quantile Regression Forests. Step-by-step code examples show training/testing, feature selection, accuracy metrics, and model interpretation. Reproducibility and cartographic best practice are emphasised. A Slovakia case study demonstrates real-world application while outlining limits and generalisability. The book targets bachelor’s, master’s, and PhD students in geography, geoinformatics, environmental and agricultural sciences, as well as practitioners. Written in English, it fits international courses and mobility programmes.

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Katarína Štrofeková

Cell Biophysics II is the one semester comprehensive course textbook for PhD students. It encompasses basic principles and mechanisms underlying cell physiology and biophysics with aims:

• General knowledge of the principles of cellular function, including membrane, cytoplasmic and nuclear roles in normal and abnormal conditions.
• In-depth understanding of the mechanisms underlying the cell functions at the molecular and subcellular level.
• Awareness of cell pathologies that lead to specific disease symptoms and phenotypes.
• The ability to apply learned principles to solve new problems (analysis & synthesis).

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Adriana Zeleňáková

Magnetic nanoparticles are extremely interesting magnetic objects that still hide much that is undiscovered, both because of their physical properties and because of their diverse applications. Iron nanoparticles, or iron oxides, are used in medical diagnostics for magnetic resonance imaging, in the treatment of hyperthermia, and an important application is the use of magnetic particles for targeted drug delivery.

The textbook "Magnetic Nanoparticles: Nanomagnetism, Preparation and Advanced Applications" is intended primarily for students of the Master's programme in Physics and students of related disciplines at universities and faculties with a physical, chemical, metallurgical and biophysical focus. The motivation for writing this textbook was to develop study material that would contribute to improving the quality of teaching in the profile subject Nanomaterials and Nanotechnology at the Institute of Physical, Faculty of Sciences, UPJŠ, in the Master's programme Condensed Matter Physics, as well as in the profile subject in the PhD programme Advanced Materials.

The university textbook is divided into eight chapters. The first and second chapters are devoted to basic information about magnetism, the origin of nanomagnetism in nanoparticles and surface phenomena. The third and fourth chapters are devoted to nanomagnetism in nanoparticle systems. The fifth chapter describes in detail individual protocols for investigating the phenomenon of superparamagnetism and the phenomenon of superspin glass using the SQUID device. The sixth chapter describes individual procedures for the preparation of magnetic nanoparticles and the seventh chapter describes individual experimental techniques for the study of magnetic nanoparticles. The final eighth chapter describes the applications of nanoparticles in biomedicine.

During the writing of this textbook, the chapters were prepared using the foreign-language specialist literature listed in the recommended reading list.

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Danica Studenovská - Tomáš Madaras 

Táto publikácia je určená pre študentov nematematických odborov na Prírodovedeckej fakulte UPJŠ v Košiciach. Jej obsahom je látka preberaná v prvom semestri v rámci predmetu Matematika I..

Publikácia nadväzuje na učivo stredných škôl a nevyžaduje žiadne predbežné špeciálne znalosti. Môže slúžiť ako základ na ďalšie samostatné štúdium a môže byť užitočná aj pre iných záujemcov o matematiku a jej aplikácie.

Vyriešené príklady v jednotlivých kapitolách majú pomôcť čitateľovi pri zvládnutí štúdia. Tomu napomáhajú aj ilustratívne obrázky.

Autori

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Michal Hnatič - Tomáš Lučivjanský

This textbook is primarily intended for first-year master's degree students at Pavol Jozef Šafárik University in Košice, especially those in the nuclear physics, subnuclear physics, and theoretical physics programs. For many years, these lectures were taught by one of the authors at this university, and naturally, over time, there arose an effort to provide these lectures to students in printed form.

In this textbook, we will focus mainly on classical field theory, its quantization based on the operator approach, and the introduction of interactions. Descriptions based on functional integration, Feynman diagram techniques, and more advanced parts will be covered in a subsequent volume of the textbook. In this context, we want to emphasize that in many modern quantum field theory textbooks, the operator approach is used to a lesser extent and is replaced by the approach using (functional) path integrals.

This is probably due to time considerations, as the functional approach leads much faster to practical calculations. On the other hand, we believe that the operator approach is better from a pedagogical point of view. It is much closer to the traditional quantum mechanics course, which is often based on the Schrödinger or Heisenberg formalism. Therefore, students can much more easily follow the flow of ideas that led to the construction of quantum field theory and its fundamental concepts.

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Katarína Cechlárová (ed.)

This year, the Student Scientific Conference was held on April 24, 2019, across 17 sections in disciplines such as biology and ecology, chemistry, physics, geography, mathematics, informatics, and their didactics. Bachelor’s and master’s students presented a total of 124 contributions. The most successful participants advanced to national or traditional Czech-Slovak student scientific showcases in fields like physics, chemistry, mathematics, informatics, and mathematics didactics.

In addition to faculty students, 10 high school students participated outside the competition. They were invited based on their achievements in subject-specific Olympiads or because they were already engaged with the faculty under the guidance of dedicated teachers in laboratory work as part of their preparation for future studies. The day also featured a programming competition with 23 participants, an IHRA contest involving 16 teams of high school students and 15 teams from elementary schools, and a new Puzzle section where 72 high school students from the region competed.

The abstracts from the Student Scientific Conference demonstrate that our faculty's students not only absorb theoretical knowledge delivered in lectures but also actively engage in solving partial scientific problems that align with research objectives at the institutes of PF UPJŠ. This collection serves as both a record of scientific activity at the faculty and a dignified presentation for the broader public.

Prof. RNDr. Katarína Cechlárová, DrSc.

Vice-Dean for Education

Doc. RNDr. Gabriel Semanišin, PhD.

Dean of the Faculty

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Milan Žukovič

This textbook is intended for master's degree students and is a follow-up to the Computational Physics I course studied at the bachelor's level. The content of the textbook Computational Physics II focuses on stochastic methods of solving physical problems, mainly on Monte Carlo (MC) simulation of many-particle systems.

The focus on this computationally intensive approach is motivated by the gradual increase in the computing capacities of ordinary computers as well as the introduction of high-performance computing clusters. This has led to significant progress in the development of new simulation techniques, thanks to which MC simulations have found application in various areas of research and application practice. Considering the main research focus of the department, this text is particularly devoted to the presentation of basic and more advanced MC simulation techniques applied to a simple Ising spin model in order to investigate its magnetic, thermodynamic and critical properties.

The next part is devoted to MC simulations of random processes. It focuses on the simplest but also the most basic random walk process and demonstrates its applications in financial analysis and the solution of a quantum system described by the time-dependent Schrödinger equation. The last part is dedicated to the basics of molecular dynamics, applied to simulating the classical movement of atoms in a given force field. By mastering the problems addressed in this course, students will obtain a potential tool for working out of their diploma theses, or a methodology useful for their further scientific and research practice in the field of investigating of complex systems.

The lectured topic is subsequently exercised in the form of preparing projects implemented in the freely distributable software Octave, which is easy on the user's programming skills and which students have the opportunity to familiarize themselves with in the previous study.

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Michal Goga-Marko S. Sabovljević-Martin Bačkor-Dajana Kecsey-Deepti Routray
A comprehensive guide that introduces you to the fascinating diversity and systematics of lower plants. These practical lessons are designed to provide hands-on training, allowing students to engage directly with the interesting study of Cryptogams by observation, analysis, and identification and experimentation. Beginning with the overall idea of cryptogam in a field trip near by the vicinity of Botanical garden then followed by the basics of microscopy in, will help to gain essential skills in understanding the components and proper usage of a microscope, a fundamental tool in botanical studies.
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Peter Kollár a kol. 

Skriptá Základné fyzikálne praktikum II. sú určené pre študentov Prírodovedeckej fakulty UPJŠ v Košiciach študujúcich na študijných programoch fyzika a medziodborových programoch v kombinácii s fyzikou. Obsahom skrípt sú úlohy z elektriny, magnetizmu a optiky. Podľa študijných programov sú zaradené do 3.semestra bakalárskeho štúdia, v ktorom by už študenti mali mať absolvovaný predmet všeobecná fyzika II. (elektrina a magnetizmus). Súčasťou každej úlohy sú základné poznatky venované javom, ktoré sú obsahom samotnej úlohy.

Autori

Tatiana Kimáková

Táto vedecká monografia je komplexnou vedeckou prácou zameranou na prítomnosť a pôsobenie ortuti v životnom prostredí, ale aj na rizikové faktory zdravia, ktoré sú s ňou spojené. Monografia predstavuje charakteristiku ortuti v multidisciplinárnom zábere, prezentuje využitie v priemysle a v zdravotníctve, popisuje negatívne vplyvy ortuti v životnom prostredí, na zdravotný stav obyvateľstva. Zároveň prináša návrhy a odporúčania pre rizikové skupiny ľudí. Súčasťou monografie je komplexný výskum koncentrácie ortuti vo vzorkách komodít domácej i zahraničnej produkcie a vo vzorkách rastlín pomocou atómového absorpčného spektrometra AMA 254. Vedecká monografia je vhodná pre vedeckú komunitu, študentov medicínskych, veterinárnych, prírodovedných a poľnohospodárskych odborov ako aj pre študentov verejného zdravotníctva všetkých troch stupňov vysokoškolského štúdia. Monografia je učená aj pre všetkých záujemcov z radov informovanej verejnosti.

Autorka

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Ľubomír Antoni-Stanislav Krajči

An important part of theoretical computer science is the problem of Turing machines. This computational model has two basic properties: like any other computational program, the software of a Turing machine is composed of instructions, but in its case they are all of a single type. Every other (so far known) computer program can be transformed into a Turing machine program without loss of information. While the second feature reduces the question of what a calculator cannot do to the question of what a Turing machine cannot do, the first feature allows a much simpler investigation of such a question. Using this computational model, we can thus find concrete problems that no automaton can ever deal with (perhaps the most famous is the problem of the Turing machine stopping). Their existence demonstrates the fundamental limitations of (not only ideal) computational means, and thus encourages both criticality and humility in our thinking.

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Katarína Cechlárová - Eva Pitoňáková (eds.)

Proceedings of Abstracts from Contributions by Participants of the Student Scientific Conference at the Faculty of Science, UPJŠ in Košice, Held on April 26, 2017

This is the fifth edition of the proceedings from the Student Scientific Conference (ŠVK) at the Faculty of Science, Pavol Jozef Šafárik University in Košice. We are pleased that ŠVK has become an integral part of faculty life and a showcase for the quality of education provided. In 2017, ŠVK took place as part of the traditional Science Days on April 26, 2017. 105 students from the Faculty of Science presented their work. Contributions were organized into 15 sections, supplemented by an open programming competition involving 17 students and the final round of the IHRA competition, which included 27 teams from across Slovakia.

The abstracts in this proceedings demonstrate that students at the Faculty of Science, UPJŠ, acquire knowledge and skills in their field not only through theoretical study of disciplines but also through active engagement in solving partial scientific problems aligned with research goals at the faculty’s institutes. These abstracts also provide an overview of the faculty’s scientific activity, which we believe will be of interest to the broader public.

doc. RNDr. Gabriel Semanišin, PhD.

Dean of the Faculty

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Jozef Bednarčík (ed.)

The SFEL school is continuation of the Winter Schools of Synchrotron radiation held in 2011, 2013, 2014 and SFEL 2017, 2018 and 2019. All schools of the series were held here, in Liptovský Ján, where our conference venue offers conditions for friendly and creative atmosphere.

The aim of the SFEL 2022 school is to facilitate the growth of a new Slovak research community with high expertise in the area of high-efficiency RTG laser, synchrotron and neutron sources. The SFEL school is designed for efficient transfer of the rapidly developing know-howin these areas to young generation – researchers and university students. The next aim of the SFEL2022 is strengthening of personal connections between the local Slovak research community and actually forming scientific teams of XFEL users, scientific teams of synchrotron or neutron sources users, respectively.

Slovak research community thus can take advantage of the fact that Slovakia is a shareholder of the European XFEL GmbH company in Hamburg, but also makes more efficient use of other closely related scientific facilities, including ILL and ESRF in Grenoble and DESY in Hamburg.

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Ivana Šišoláková - Radka Gorejová - Jana Shepa - Renáta Oriňaková

The university textbook "Advanced Electrochemical Methods" is a teaching aid intended for master's or doctoral students studying electrochemical subjects at the Department of Physical Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice.

These textbooks follow and further develop textbooks focused on the basic electrochemical methods currently used in modern research. The presented teaching texts are processed in sixteen clear chapters, where they provide a theoretical principle and derivation of electrochemical processes and mechanisms in individual methods. Teaching texts also consist of practical laboratory exercises, in which students can try out the real application of the studied electrochemical methods.

The practical tasks are focused primarily on the demonstration of research that is carried out at our workplace. Students will be able to try, for example, electrochemical modification of the electrode surface, preparation of electrochemical sensors for the determination of analytes, preparation and characterization of a dye-sensitized solar cell or electrochemical evolution of hydrogen.

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Daniela Kladeková

Working with this study text requires adequate knowledge of physical chemistry, physics, and biology, as navigating the presented material becomes challenging without this foundation. A solid grasp of mathematics is essential and aids in understanding colloidal chemistry problems. The textbook, structured into individual chapters, first addresses optical and molecular-kinetic properties after classifying and characterizing disperse systems.

This university-level textbook is primarily intended for students in chemical and ecological disciplines at the Faculty of Science, Pavol Jozef Šafárik University in Košice. It does not aim to exhaustively cover every detail of the subject, as comprehensive treatments are already available in specialized monographs on colloid and macromolecular chemistry, as well as in foundational physical chemistry textbooks.

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Karel Saksl

Solving crystal structures is the royal discipline of X-ray crystallography. Its primary task, with the exception of defects, is to describe the atomic structure of the motif that, by its repetition, fills the volume of the entire crystal or crystalline phase. This task is nowadays more or less routine for single-crystal X-ray diffraction, which can locate hundreds to thousands of non-hydrogen atoms in large unit cells. However, in real practice, we often have material available only in powder form instead of single crystals. Solving the atomic structure from its X-ray diffraction data is non-trivial, mainly because the three-dimensional diffraction space of a single crystal is reduced to one dimension by measuring a large number of randomly oriented microcrystals (crystallites). Therefore, the solution itself requires, in addition to proper measurement methodology, the selection of suitable tools, procedures, and strategies that, through optimization, will lead to the solution and refinement of the given crystalline phase. The current limit of this method is approximately 100 non-hydrogen atoms in the asymmetric part of the unit cell, which, however, is sufficient for most inorganic materials.

The goal of these educational texts is to provide students in the second and third levels of university studies with specific guidance on solving crystal structures from powder X-ray diffraction data. These scripts build upon my first monograph and require practical knowledge of its content. Similar to my previous monograph, I offer solved examples without a deep theoretical introduction, demonstrating procedures and strategies leading to the correct solution of crystalline phases using the freely available GSAS-II program. The examples are arranged from simpler to more complex, and the reader will find many useful pieces of information in the literature references as well as in the comments below the line. Part of these scripts are data intended for your individual practice of the described procedures. 

Karel Sakls

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