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An effect of cold showers on mental characteristics of adults
BÜRGEROVÁ, Anna
The aim of this thesis is to use a questionnaire survey to perform the overall structure of the mental characteristics of a selected sample of the population and to reveal the effect of regular cold showers on the mental well-being of probands. To obtain data on the mental structure, a standardized SUPSO-7 questionnaire was used, which the probands filled in at the beginning and end of cold showering. 48 students of the Faculty of Education of the University of South Bohemia in České Budějovice took part in the research. The first experimental group took cold showers for 11 months, the second experimental group took them for 3 months. A control group was created for the second experimental group. Probands took cold showers on average four times a week. Results of data obtained using the SUPSO-7 questionnaire demonstrations in the experimental group influencing mental well-being and activity in comparison with control objectives. In contrast, in the experimental group, there was a decrease in impulsivity, depression, anxiety, and depression compared to control goals. Only the increase in mental well-being was statistically significant (p = 0.02), but the results show that cold showers could have a positive effect on the individual's mental characteristics.
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Supervision in preschool education
Bürgerová, Anna ; Pavlas Martanová, Veronika (advisor) ; Frombergerová, Anna (referee)
The aim of the thesis is to present the concept of supervision in educational context as a tool for supporting preschool educators in their professional development, to map supervision implementation in nursery schools and examine teachers' views on supervision. The theoretical part first introduces the concept of supervision with regard to the term definition, its functions, aims, purpose, process and its participants. The following section of theory deals with the topic of supervision in educational environment, specific demands placed on teaching profession and presents supervision as an effective tool for teachers' professional growth and their mental health support. The empirical part presents qualitative research focused on teachers' experiences with supervision in three nursery schools and based on grounded theory principles. The results show that supervision implementation in nursery schools primarily depends on their financial and organisational capabilities which determine their ability to utilize supervision's potential. Research also shows that preschool educators perceive supervision as help, providing them with new perspectives, and as a means of sharing in a safe environment. Feeling of safety and trust in particular is according to the teachers a key component of a successful...
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Effect of noise pollution on selected species of cetaceans
Burgerová, Anna ; Petrtýl, Miloslav (advisor) ; Kuříková, Pavlína (referee)
Sound in water tends to travel much faster than in air. Cetaceans started to use the hearing system as a tool for their communication and so this system must have been adapted during the evolution. Every species form his specific sound repertoire which is used mainly for food finding, detection of predator or other hazards, communication and reproduction.
Ocean ambient noise is created by natural sources of sound and man-made sounds (also called as anthropogenic sounds). Natural sounds are produced by marine organisms and processes like earthquakes, rainfall and so on. Anthropogenic sounds are made by man either intentionally or unintentionally and these sounds mostly disrupt the oceanic environment. Sound frequency and intensity level are the main factors when we determine the intensity of distortion in communication of Cetaceans. The most detrimental sounds are those with low frequency (from 10 to 500 Hz) and long-ranged propagation (hundreds of kilometers). Into this category we can include shipping and seismic surveys. In general, the most of anthropogenic sources of noise belong to this category. Other sources of anthropogenic noise are industrial activities, military sonar and acoustic deterrent and harassment devices (ADDs/AHDs).
Responses of Cetaceans to anthropogenic noise can be divided into three categories: physiological, behavioral and acoustic. The physiological reaction can be increasing metabolism, increasing baseline concentration of glucocorticoids in the blood and ultimately reducing immunity. Behavioral responses include changes in heading patterns and swim speed, changes in diving and breathing. Also included are social activities like food finding or nursing. Every change in vocalization represents acoustic responses.
With growing number of studies which prove a negative influence of anthropogenic noise on Cetaceans there is an increasing need to introduce effective measures which could reduce or limit this negative influence. For this purpose there are established marine protected areas and safety zones which avoid exposure to loud noise (circa 120 dB and more) thanks to their regulations. As well there was developed a technology to modify the ship equipment and the using of an air bubble curtain in the immediate area of the industrial activity shows efficiency in acoustic attenuation.
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