Chemistry (e-books)

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.

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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.

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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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E-book

Marek Stupák et al.

A well-known proverb says: "It is better to see once than to hear a hundred times." With this in mind, the electronic version of the teaching materials has been designed, as we are convinced that practical laboratory experience is irreplaceable and still holds its significance in university studies.

In the provided teaching texts, you will find a set of experiments that complement and help better understand the theoretical knowledge gained through self-study as well as lectures in an appropriate manner. Additionally, this e-version allows students, after printing and subsequently completing individual tables, observations, and conclusions, to submit them as a laboratory report that confirms they have successfully mastered the assigned tasks.

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Danica Sabolová

This university textbook is intended for students of the Faculty of Science of the University of Applied Sciences in Košice who have enrolled in practical exercises in Biotechnology, but also for all other students who are interested in learning about the practical applications of biotechnology.

The aim of the practical course is to familiarize students with basic biotechnological methods and their applications. The students will verify in practice the theoretical knowledge acquired in the Biotechnology lectures such as the course of fermentation processes, wine production, preparation of fermented milk products and cheese, preparation of culture media, inoculation and cultivation of microorganisms, etc. The practical exercises also include the use of analytical and spectral methods, which are an integral part of biochemistry.

The scripts are published only in electronic form and are available on the University's website: http://kosice.upjs.sk/~kbch/sk, for the reason that it will always be possible to update and modernize the content of the laboratory exercises.

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Daniela Kladeková

This university text is intended for students of chemical and ecological sciences at the Faculty of Natural Sciences of the P. J. Šafárik University in Košice and is intended to serve as a tool for experimental exercises in colloid chemistry. Colloid chemistry is an important part of the theoretical basis of the chemical sciences and belongs to the newer interdisciplinary fields of natural sciences.

It combines knowledge from physical chemistry, physics and biology, while also drawing on a solid knowledge of mathematics and other scientific disciplines. Experiments are often essential in understanding the problems of colloid chemistry, modelling ideas about the phenomena and laws involved in the discipline. This is why active participation in experimental exercises is so important and essential to mastering the material in colloid chemistry.

In selecting the tasks for these scripts, it was also necessary to respect the considerable limitations imposed by the possibilities of the laboratory instrumentation and material equipment of our department. Despite this limitation, however, they can illustrate to students the basic theoretical physicochemical principles of colloid dispersion systems and, importantly, their understanding can contribute to the understanding of some of the more important peculiarities of colloidal phenomena.

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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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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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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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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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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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Vladimír Zeleňák (ed.)

The proceedings contain contributions from participants of the Student Scientific Conference of the Faculty of Science at UPJŠ in Košice, which took place on April 24, 2014.

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Vladimír Zeleňák(ed.)

The proceedings contain abstracts of contributions from participants of the Student Scientific Conference of the Faculty of Science, Pavol Jozef Šafárik University in Košice, which took place on April 22, 2015.

The Student Scientific Conference (SSC) enjoys long-term popularity among the faculty's students and teachers, and we are pleased that this was no different this year, with 128 contributions submitted to the SSC.

The contributions were organized into 19 sections, additionally complemented by an open programming competition and the final of the IHRA contest. For many students, presenting at the SSC is one of the first opportunities to gain experience in presenting their results before a professional audience. Considering the number of submitted contributions, along with the members of the expert juries from the faculty's teaching staff and the audience who came to support their classmates' presentations, the SSC is an event where a large part of the student and academic community of the faculty meets at one place and time. Many abstracts presented in this proceedings were developed as part of students' work on partial tasks that are components of research projects at the departments of the Faculty of Science, Pavol Jozef Šafárik University.

The abstracts represent, in a way, an overview of research topics at the individual workplaces of the faculty. The SSC proceedings thus serve as a useful tool that students and faculty teachers can use to present the faculty externally to partners, employers, and potential collaborators. Partners from practice have shown interest in cooperating in organizing the SSC for a long time. Since 2005, the association of IT companies has awarded a Prize for the Most Original Work and a Prize for the Work with the Best Prospects for Practical Application.

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Mária Ganajová

The current teaching of chemistry has its specific problems. On one hand, due to the shift of the focus of chemistry curriculum towards theoretical content, the difficulty of chemistry material has increased, and in connection with this, students' interest in chemistry has decreased.

The lack of student interest in chemistry is mostly supported by the opinion that it is precisely chemistry that significantly contributes to the deterioration of environmental quality. On the other hand, we live in an era where we encounter chemical products practically everywhere. It is necessary to learn the basics of chemistry as well as possible, which makes the question of increasing interest in chemistry education and improving its effectiveness very relevant. State educational programs have been introduced into Slovak schools as a foundation for the creation of school educational programs. These emphasize not only acquiring a certain amount of knowledge but also the development and enhancement of key and specific competencies of students, preparing them for lifelong learning and their application in life.

Therefore, increasing attention is being paid to one of the fundamental didactic tools for raising student activity in teaching, and thus improving the effectiveness of chemistry education – learning tasks. From both theory and practice of chemistry teaching, we know that learning tasks, questions, examples, exercises, etc., are among the important components of every teaching lesson. Learning tasks are applied in all phases of teaching – in the motivational phase, the phase of acquiring knowledge, the phase of consolidating knowledge, and the phase of checking the acquired knowledge. It is therefore clear that every teacher will sooner or later find themselves in a situation where they will have to select learning tasks from textbooks, workbooks, collections of problems and examples, or create them themselves.

This scientific monograph is intended for educational specialists and chemistry teachers, aiming to familiarize them with examples of various types and forms of learning tasks and the basics of their creation in chemistry. It can also be helpful for them in preparing certification works focused on test creation and their statistical evaluation.

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