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  • Categories: Science
  • Year of publication:: 2011
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Globálne navigačné satelitné systémy

Globálne navigačné satelitné systémy

E-book

E-book

Vladimír Sedlák

In the presented university textbooks, so-called satellite-based augmentation systems (SBAS, from the English Satellite Based Augmentation Systems, in Slovak Systémy rozširujúce základné satelitné systémy) are also discussed. These systems enhance, expand, or refine the basic satellite navigation systems. They are supportive satellite systems for GNSS (Global Navigation Satellite Systems). Currently, the long-operational American GPS and Russian GLONASS systems, as well as the partially operational European Galileo system (since December 2016), have and will continue to have broad applications in various fields of human activity, both professional and personal.

The university textbook Globálne navigačné satelitné systémy (Global Navigation Satellite Systems) reflects the current progressive development in the technological and instrumental principles and components of such satellite navigation systems. It presents the state of these satellite technologies from their historical origins and development to the present. The rapid advancements, particularly in the instrumental base of satellite navigation systems, will require updates on their current state in future editions of these university textbooks.

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Antioxidanty a ich význam v prevencii chronických ochorení

Antioxidanty a ich význam v prevencii...

E-book

E-book

Tatiana Kimáková - Vladimír Pavlík

The scientific monograph focuses on the characteristics of free radicals, reactive oxygen and nitrogen species, oxidative stress, and its impact on various diseases. A significant portion is dedicated to antioxidants, their classification based on multiple criteria, the characteristics of selected antioxidants in terms of their functions, manifestations of their deficiency and excess, and the overall antioxidant capacity of the body.

A special section is devoted to enzyme-based antioxidants, natural sources of antioxidants in the form of vitamins, trace elements, flavonoids, polyphenols, and coenzyme Q10. To provide a clearer understanding of antioxidants and their influence on population health, the monograph presents results from a research project included in the program "Research Support for Enhancing the Defense Capabilities of the Czech Republic in NATO Structures."

The research was conducted between 2010 and 2012 as part of preventive rehabilitation programs for professional soldiers with a sports component. The study involved 218 professional soldiers, including 180 men and 38 women, with an average age of 33.3 years. The current health status and dietary habits of the soldiers were assessed using questionnaires.

The study described the saturation of the observed group with antioxidant vitamins and statistically evaluated the relationship between their levels and the risk indicators for the development of cardiovascular diseases. Individual analyses were performed using the Reflotron device calibrated with Reflotron Precinorm control serum. Following blood collection, all participants underwent anthropometric examinations (body weight, height, waist circumference), blood pressure measurements, heart rate monitoring, and physical fitness assessments through simple functional tests.

This scientific monograph is suitable for the scientific community, students of medical, veterinary, and natural sciences, as well as public health students at all levels of university education. It is also intended for informed members of the public.

Authors

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Chemické výpočty vo všeobecnej a anorganickej chémii

Chemické výpočty vo všeobecnej a anorganickej...

E-book

E-book

Ivan Potočňák

The script is a study literature for the subject Chemical Calculations, which is a mandatory course in the bachelor's degree programs in Chemistry and Chemistry – Interdisciplinary Studies, first year. The script contains 10 chapters with a total of 207 pages, guiding students through solved and unsolved examples to help them understand the subject matter.

Author

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Ortuť v životnom prostredí ako rizikový faktor zdravia

Ortuť v životnom prostredí ako rizikový faktor...

E-book

E-book

Tatiana Kimáková

This scientific monograph is a comprehensive scientific work focused on the presence and effects of mercury in the environment, as well as the health risk factors associated with it.

The monograph presents a characterization of mercury in a multidisciplinary scope, discusses its use in industry and healthcare, and describes the negative impacts of mercury on the environment and public health. It also provides proposals and recommendations for at-risk groups. The monograph includes a comprehensive study of mercury concentration in samples of domestic and foreign production commodities and plant samples using the atomic absorption spectrometer AMA 254.

This scientific monograph is suitable for the scientific community, students of medical, veterinary, natural sciences, and agricultural fields, as well as public health students at all three levels of university study. It is also intended for all interested members of the informed public.

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Cvičenia z biochémie mikroorganizmov

Cvičenia z biochémie mikroorganizmov

E-book

E-book

Mária Kožurková

These university textbooks are intended for first-year master's degree students at the Faculty of Natural Sciences of UPJŠ in Košice. The scope and content of the works included in these scripts are primarily based on time and spatial constraints, taking into account the material demands of the tasks.

The aim of these scripts is to teach students basic microbiological techniques and to show them the importance of microorganisms in everyday life and their crucial role in nature. The exercises are designed to enhance students' technical skills and teach them to work according to safety principles.

The text is divided into 13 parts. Each part begins with an introduction to the theory related to the practice topic. The appendix includes a proposal for the preparation of protocols for individual exercises.

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Vybrané kapitoly z koloidnej chémie

Vybrané kapitoly z koloidnej chémie

E-book

E-book

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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Základy experimentálnych metód vo fyzike kondenzovaných látok

Základy experimentálnych metód vo fyzike...

E-book

E-book

Martin Orendáč

The textbook is designed to prepare students who will engage in the experimental study of the properties of condensed matter. It demonstrates that a contemporary experimental physicist must not only possess sufficiently detailed knowledge of the physical processes occurring within the object under study but also understand the methods for creating the experimental conditions in which the experiment is conducted. Active knowledge of the functioning of the entire experimental setup can be of fundamental importance in the implementation or potential modification of the measurement methodology used.

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Jadrová chémia

Jadrová chémia

E-book

E-book

Andrea Morovská Turoňová

The discovery of radioactivity at the turn of the 19th and 20th centuries stimulated the rapid development of nuclear sciences. At the interface between nuclear physics and chemistry, disciplines such as radiochemistry, radiation chemistry and nuclear chemistry were formed.

The aim of the Nuclear Chemistry course which is taught at the PF UPJŠ is to provide basic knowledge, with an emphasis on the general value of the subject. It is important to make available the basics of various methods, techniques and their specifics in the application of nuclear phenomena in chemistry and related fields. Emphasis is also placed on the use of correct terminology, knowledge of the context of relationships and basic principles, supplemented by illustrative concrete cases.

The choice of material is rather difficult, but we count on additional monographs and textbooks to fill in the gaps of these teaching texts.

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Zborník príspevkov z 11. Dní doktorandov experimentálnej biológie rastlín a 13. Konferencie experimentálnej biológie rastlín

Zborník príspevkov z 11. Dní doktorandov...

E-book

E-book

Martin Bačkor - Silvia Mihaličová (eds.)

Proceedings of the 11th Conference of Doctoral Students in Experimental Plant Biology and the 13th Conference on Experimental Plant Biology, Košice, September 9–13, 2013

13th Conference of Experimental Plant Biology (Sections)

  1. Cell Biology and Cytology: Michal Martinka
  2. Developmental Biology and Morphogenesis: Alexander Lux
  3. “Omics” – Genomics, Transcriptomics, and Proteomics: Boris Vyskot
  4. Hormonal Regulation of Plant Growth and Development: Jana Albrechtová
  5. Photosynthesis, Assimilate Production, and Transport: Jiří Šantrůček
  6. GMOs and Plant Biotechnology: Eva Čellárová
  7. Biophysical Signals and Optical Properties of Plants: Jan Nauš Stress
  8. Physiology: Ľudmila Slováková
  9. Plant Interactions with Organisms: Martin Bačkor
  10. Water and Mineral Nutrition of Plants: Miroslav Repčák
  11. Productive Biology of Plants and Agriculture: Václav Hejnák
  12. Ecological Plant Biology and Global Climate Change: Michal Marek

11th Days of Doctoral Students in Experimental Plant Biology (Sections)

  1. Molecular & Cell Genetics: Viktor Žárský
  2. Developmental Biology: Alexander Lux
  3. Biochemistry & Physiology: Jiří Šantrůček
  4. Systematics & Evolution: Jana Albrechtová
  5. Ecophysiology: Jana Albrechtová

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Vybrané kapitoly z elektrochémie

Vybrané kapitoly z elektrochémie

E-book

E-book

Kveta Markušová - Daniela Kladeková

Electrochemistry is the science that studies ionic systems and the processes or phenomena that occur at the interface between ionic systems and metals or semiconductors. At the current stage of development, electrochemistry can be divided into two main areas based on its focus. The first one - ionics - deals with the properties of ionic systems (solutions, melts, solid electrolytes). The second area - electrodeics - focuses on phenomena at the electrode/ionic system interface.

Both ionics and electrodeics investigate equilibrium and non-equilibrium phenomena and processes. Research into the properties of ionic systems under equilibrium conditions provides information and insights into the structure and composition of electrolyte solutions, melts, and solid electrolytes, while measurements under non-equilibrium conditions provide data on the electrical conductivity of ionic systems. In the field of electrodeics, the study of equilibria at the electrode/solution (or melt) interface is the domain of electrochemical thermodynamics. Measuring the rates of processes occurring at this phase interface and explaining the principles governing these processes fall under the scope of electrode process kinetics or electrochemical kinetics.

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Teória efektívneho poľa pre lokalizované spinové modely

Teória efektívneho poľa pre lokalizované...

E-book

E-book

Michal Jaščur

This monograph is devoted to the discussion of effective field theory based on the differential operator method, originally introduced by Honmura and Kaneyoshi in 1979, which remains actively used for theoretical studies of localized spin models of magnetism—particularly variants of the Ising model. To date, this methodology has been applied by numerous authors to investigate a wide range of systems, including crystalline systems, diluted magnetic systems, systems with random exchange interactions, amorphous magnetic materials, systems under random magnetic and crystalline fields, thin magnetic layers, magnetic systems with free surfaces, binary and ternary magnetic alloys, among others.

During my scientific career, I have collaborated with several leading experts in this field—including Prof. Kaneyoshi, with whom I completed two long-term research stays—to advance the development of the differential operator method (and consequently effective field theory). Within this research area, I have published over 40 scientific papers in prominent international physics journals. These works include both methodological advancements and significant applications that predict intriguing physical phenomena, such as multicompensation phenomena in ferrimagnets.

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Úvod do termodynamiky

Úvod do termodynamiky

E-book

E-book

Michal Jaščur - Michal Hnatič

This textbook covers the fundamentals of phenomenological thermodynamics to the extent typically taught in standard theoretical physics courses at the undergraduate level in the Physics degree program. A slightly reduced scope is also taught in all interdisciplinary study programs combined with physics. In recent years, the time allocation for individual courses has been slightly reduced, which is reflected in our selection and coverage of topics.

Our primary aim was to provide a sufficiently solid explanation of the key concepts and laws of thermodynamics necessary for mastering further theoretical physics courses at the master's level (e.g., Statistical Physics, Condensed Matter Physics, Quantum Theory of Solids, Quantum Theory of Magnetism, etc.). The book also presents the essential minimum knowledge required for the study of further applications of thermodynamics in biophysics, biology, chemistry, and engineering disciplines.

Understanding individual sections, as well as the text as a whole, requires a grasp of the basic concepts of thermodynamics at the level of a General Physics course and knowledge equivalent to a standard university mathematics course. Each topic is treated with the utmost emphasis on conceptual clarity and mathematical rigor.

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Qauntum theory of magnetism

Qauntum theory of magnetism

E-book

E-book

Michal Jaščur

This is a supporting text for the undergraduate students interested in quan- tum theory of magnetism. The text represents an introduction to various theoretical approaches used in this eld. It is an open material, in the sense that it will be supported by appropriate problems to be solved by student at seminars and also as a homework.

The text consists of four chapters that form closed themes of the in- troductory quantum theory of magnetism. In the rst part we explain the quantum origin of the magnetism illustrating the appearance of the ex- change interaction for the case of hydrogen molecule. The second chapter is devoted to the application of the Bogolyubov inequality to the Heisenberg model and it represents the part which is usually missing in the textbooks of magnetism. The third chapter deals with the standard spin wave-theory including the Bloch and Holstein-Primakoff a approach. Finally, we discuss the application of the Jordan-Wigner transformation to one-dimensional spin-1/2 XY model.

The primary ambition of this supportive text is to explain diverse math- ematical methods and their applications in the quantum theory of mag- netism. The text is written in the form which should be sufficient to de- velop the skills of the students up to the very high level. In fact, it is expected that students following this course will able to make their own original applications of the methods presented in this book.

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Študentská vedecká konferencia PF UPJŠ 2013

Študentská vedecká konferencia PF UPJŠ 2013

E-book

E-book

Vladimír Zeleňák (ed.)

The publication contains abstracts of contributions presented at the Student Scientific Conference of the Faculty of Natural Sciences at UPJŠ in Košice, held on April 25, 2013. The event was marked by the celebration of the 50th anniversary of the Faculty of Natural Sciences at UPJŠ and was part of a series of events called ScienceFest.

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Doménové steny a ich dynamika

Doménové steny a ich dynamika

E-book

E-book

Rastislav Varga

The movement of domain walls in ferromagnetic materials is utilized in various magnetic devices for storing, processing, or transmitting signals and information. This mainly includes transformer cores, various sensors, memory devices (e.g., HDDs in PCs), as well as modern spintronic devices such as Racetrack memories, domain wall motion-based electronics, and so on.

This book is intended to serve as a textbook for advanced courses in the field of magnetic materials. It is primarily aimed at students interested in studying magnetic materials, as well as professionals from various fields who wish to understand the basics of domain structure and its changes. It is divided into nine chapters. The first chapter deals with a brief history of the study of domain structure in magnetic materials. The second chapter provides an introduction to the causes and manifestations of magnetic anisotropies. The third and fourth chapters are devoted to the causes of domain structure formation and domain walls. The fifth chapter discusses the structure of domain walls, their potential, and the critical field required for domain wall movement. The sixth chapter is dedicated to magnetization processes, one of which - domain wall movement - is discussed in detail in chapter 7. The eighth chapter contains a theoretical solution for domain wall movement. The final ninth chapter presents a modern method of domain wall movement induced by electric current.

The presented work assumes that the reader has at least basic knowledge in the field of magnetism. Otherwise, the author refers the reader to basic literature (e.g., [2.1 - 2.6]).

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Tvorba úloh pre programátorské súťaže

Tvorba úloh pre programátorské súťaže

E-book

E-book

Ľubomír ŠnajderJán Guniš

The publication lists interim results of qualitative educational research focused on the development and evaluation of programming tasks being carried out by authors since 2005 in the frame of programming competition PALMA junior.

The publication consists of three chapters: Computer science competitions in Slovakia, Tasks in computer science education, Selected problems of PALMA junior competition. The first chapter provides an overview of computer science competitions for a primary and secondary schools in Slovakia. The second chapter described the issue of learning tasks - their components, focus, formulation types, and development system of tasks. The third chapter contains the assignments and commented author solutions of selected problems represented focus of PALMA junior competition – programming, algorithms and mathematics.

For each problem is mentioned analysis of pupils’ solutions aimed to ways of thinking, typical misconceptions, sets of preparatory and extended problems. The publication is addressed to computer science teacher trainers, authors of programming competitions problems, and computer science teachers.  

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UNINFOS 2014 • Univerzitné informačné systémy (Zborník príspevkov)

UNINFOS 2014 • Univerzitné informačné systémy...

E-book

E-book

Gabriel Semanišin - Emil HutňanJana Oleničová

The proceedings contain contributions from participants of the UNIFOS 2014 conference, University Information Systems in Košice, which took place from October 27 to 29, 2014.

ICT centers are important element that provide functioning and development hardware and software infrastructure at Slovak Universities. There are more differences between them in real position, management, personal sources and financing. ICT centers provide a wide range of services to large number of university users and they implement the policy of information security recently.

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UNINFOS 2014 • Univerzitné informačné systémy (Zborník abstraktov)

UNINFOS 2014 • Univerzitné informačné systémy...

E-book

E-book

Gabriel Semanišin - Emil Hutňan - Jana Oleničová

The proceedings contain abstracts of contributions from participants of the UNIFOS 2014 conference, University Information Systems in Košice, which took place from October 27 to 29, 2014.

ICT centers are important element that provide functioning and development hardware and software infrastructure at Slovak Universities. There are more differences between them in real position, management, personal sources and financing. ICT centers provide a wide range of services to large number of university users and they implement the policy of information security recently.

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Základy astronómie a astrofyziky

Základy astronómie a astrofyziky

E-book

E-book

Rudolf Gális

The presented work provides basic knowledge of astronomy and astrophysics in a completely new multimedia format. The scope of the knowledge presented is mainly focused on stellar astrophysics and supplemented by cosmology beyond the title of the work.

A new approach in this work is the large proportion of visual materials, graphs, and video clips, contrasted with the brevity of the accompanying text. Such a form of presenting knowledge in this field is unprecedented in Slovakia, and therefore this work can be considered a completely innovative piece. It should be emphasized that the engaging form of the presented knowledge does not come at the expense of its content. The work contains all the necessary information that a physics student, especially one with a pedagogical focus, should master. The work can also be an invaluable aid to teachers in secondary and even primary schools, as well as professional astronomers in popularizing astronomical knowledge.

This suggests that the work covers a relatively wide range of needs at various institutions dealing with astronomy, from universities, through faculties of education and grammar schools, to observatories, planetariums, and astronomy clubs.

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Zbierka úloh z fyziky elementárnych častíc

Zbierka úloh z fyziky elementárnych častíc

E-book

E-book

Marek Bombara

The collection of exercises summarises and supplements the exercises realised at the Pavol Jozef Šafárik in Košice within the lecture course Elementary Particle Physics. The collection is intended for the master students of the Nuclear and Subnuclear Physics subject, but it could be beneficial also for other physics subjects or even for interdisciplinary study. 

The division of chapters roughly copies the order of lectures. At the beginning, students will briefly familiarize themselves with the basics of special relativity and its practical use in particle physics.

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Fotonika

Fotonika

E-book

E-book

Gregor Bánó

Photonics is an application-oriented discipline at the interface of optics, opto-electronics and quantum optics. It includes classical optics extended by the description of physical phenomena and optical devices that rely on quantum (photon) nature of light.
The main objective of the Photonics course is to provide a comprehensive overview of essential optical and photonic phenomena routinely applied in experimental scientific research while working with various light sources (e.g. in the field of biophotonics). The first chapters are devoted to the description of light at different levels. The logical order of subsections in this part corresponds to the structure of the textbook: B. E. A. Saleh, M. C. Teich, Fundamentals of Photonics. The following chapters contain a description of laser operation and an overview of selected optical instruments and their applications.
The body text is complemented by practical notes on the use of theoretical knowledge during daily work in the laboratory. The course of Photonics requires a basic knowledge of mathematics, electromagnetism and optics, and thus it is recommended to students who previously passed through the courses of the Bachelor's program in Physics.

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Študentská vedecká konferencia PF UPJŠ 2016

Študentská vedecká konferencia PF UPJŠ 2016

E-book

E-book

Vladimír Zeleňák (ed.)

Proceedings of Abstracts of the Student Scientific Conference of the Faculty of Science, Pavol Jozef Šafárik University in Košice

A characteristic feature of education at high-quality universities — among which the Faculty of Science at Pavol Jozef Šafárik University (UPJŠ) in Košice proudly belongs — is the close connection between education and scientific research. Students gain knowledge in their field of study not only through theoretical coursework in individual disciplines, but also through active involvement in solving specific scientific tasks as part of research teams. This can occur during the development of final theses or through participation in the Student Research Assistant Program (ŠPVS), which was revitalized at the faculty in 2015.

The Student Scientific Conference (ŠVK) is one of the faculty’s traditional events, organized during the Faculty’s Science Days as part of Sciencefest. By its very nature, it fits seamlessly into the aforementioned framework of combining education with research, and it has long enjoyed great popularity and student interest. In 2016, the conference featured presentations by 125 students of the Faculty of Science at UPJŠ in Košice, across 16 thematic sections. This collection of abstracts provides an overview of the focus and goals of the student projects. We believe it will serve as inspiration for other potential participants of future conferences and will also be of interest to the broader public, offering additional insight into the faculty's activities.

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Cell Biophysics II

Cell Biophysics II

E-book

E-book

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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Cognitive neuroscience of auditory and cross-modal perception - Lectures and assignments

Cognitive neuroscience of auditory and...

E-book

Norbert Kopčo - Frederick Gallun - Beáta Tomoriová - Ľuboš Hládek(eds.)

Cognitive neuroscience is a fast developing scientific field which aims at uncovering the neural basis of human perception and cognition. To achieve this goal, cognitive neuroscience uses a variety of tools and approaches ranging from non-invasive brain imaging to psychophysics and neural modeling. Mastering such tools requires skills and knowledge from multiple scientific domains, including neurophysiology, cognitive psychology, and several computational fields.

Access on request via email: kogneuro (@) gmail.com

http://pcl.upjs.sk/workshopcd 

https://sites.google.com/site/kogneuro/

Bádateľsky orientované vyučovanie matematiky a informatiky na stredných školách

Bádateľsky orientované vyučovanie matematiky a...

E-book

E-book

Stanislav Lukáč - Ľubomír Šnajder - Ján Guniš - Zuzana Ješková

The publication is intended for researchers in didactics and teachers of mathematics and computer science. Our aim is to provide readers with a basic orientation in the issue of inquiry-based teaching, to explain and demonstrate several levels of student inquiry through examples, and to offer a classification of inquiry skills.

The core part of the publication consists of methodologies for inquiry-based teaching of specific topics from school mathematics and computer science. We present ideas for implementing inquiry activities, active work with information in solving various types of problems, and the application of modern digital technologies in exploring and discovering patterns.

The publication includes seven methodologies for teaching mathematics and eight methodologies for teaching computer science in the 1st and 2nd years of secondary school.

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Prílohy

Špeciálne praktikum II - Štúdium magnetických vlastností tuhých látok

Špeciálne praktikum II - Štúdium magnetických...

E-book

E-book

Erik Čižmár

The textbook "Special Practicum II" is dedicated to describing experimental methods used for studying the magnetic properties of solid materials, especially low-dimensional and molecular magnets. It subsequently contains instructions for the practical exercise "Special Practicum II," during which master's and doctoral students use state-of-the-art commercial equipment-an electron paramagnetic resonance (EPR) spectrometer and a SQUID magnetometer.

The introductory chapter briefly describes the origin of magnetism in solids, the role of the crystal field, and magnetic interactions in explaining their magnetic properties. This is followed by an explanation of the principles of EPR, the operation of the EPR spectrometer, and the optimization of its parameters for the specific practical exercise.

The next part of the textbook is devoted to an overview of the behavior of magnetic quantities with changes in magnetic field or temperature in various types of magnets. The textbook concludes with a description of the operating principle of the SQUID magnetometer and an example of its use in a practical exercise measuring the magnetic moment.

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50 rokov katedry organickej chémie

50 rokov katedry organickej chémie

E-book

E-book

Zuzana Kudličková(ed.)

Proceedings of Abstracts from the Scientific Conference with International Participation Organized on the Occasion of the 50th Anniversary of the Establishment of the Department of Organic Chemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, held on June 8–10, 2016 in Košice.

The Department of Organic Chemistry was established on February 1, 1966. From its inception, the department’s development prospects have been linked to high-quality scientific research focused on the synthesis of isothiocyanates and the products of their nucleophilic additions. In addition, studies were conducted on the use of cycloaddition, cyclocondensation, and photocyclization reactions of heterocumulenes in the synthesis of heterocycles.

Currently, research at the Department of Organic Chemistry is concentrated on stereoselective syntheses of iminosugars and γ-lactam-β-lactone antibiotics, total synthesis of natural compounds and their analogues possessing a sphingoid structure, research into the synthesis of indole alkaloids from the phytoalexin group, and the synthesis of acetylcholinesterase inhibitors based on acridine and coumarin derivatives.

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Zbierka príkladov z atómovej a jadrovej fyziky

Zbierka príkladov z atómovej a jadrovej fyziky

E-book

E-book

Janka Vrláková - Adela Kravčáková - Stanislav Vokál

The presented "Collection of Problems in Atomic and Nuclear Physics" is intended as a basic study material for lectures in General Physics IV in the second year of the bachelor's single-subject physics program and interdisciplinary studies combined with physics at the Faculty of Science of P. J. Šafárik University in Košice.

Its aim is to support independent student work and to deepen the acquired knowledge from the given physics course by solving selected problems. It is divided into three main parts: Atomic Physics, Nuclear Physics, and Experimental Methods of Nuclear Physics.

Each thematic chapter contains an overview of basic concepts, relations, and formulas necessary for better understanding of sample problems and for solving the attached set of unsolved problems.

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Environment a jeho etické aspekty

Environment a jeho etické aspekty

E-book

E-book

Tatiana Kimáková a kol.

Ethics, as the science of the proper realization of human potential in various areas of life, also extends into the environment. For understanding the ethical aspects in this field, a thorough knowledge of the individual components of the environment, as well as their impact not only on humans but on all living nature, is very important. Therefore, questions concerning the influence of the environment are increasingly at the forefront of interest from an ethical perspective, also in connection with existing legal norms.

The modern process of civilization is characterized by rapid development of science and technology. However, this development, while raising the standard of living on one hand, also brings negative side effects on the other. The result is the disruption of ecological, biological, and natural life conditions, especially in the areas of industrial centers. The development of individual branches of industry leads to the production of liquid, gaseous, and solid wastes, the emergence of harmful risk factors threatening various components of living nature, including humans. There may be increased bioaccumulation of hazardous chemical elements in organisms, which, through their effects, represent a potential risk also in terms of carcinogenesis and mutagenesis.

For this reason, an important role of society is to create conditions to prevent the release of emissions and to reduce their concentration to the lowest possible, socially and biologically acceptable level. The assessment of the biological effects of harmful substances is based on experimental and epidemiological studies. Knowledge of concentration and duration of exposure is crucial for applying dose-effect relationships and for determining the highest permissible concentrations of pollutants. The health of the population, as a universal value and a primary human right, represents a fundamental economic resource not only for the individual, but also for society as a whole.

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