Ice phenomena on watercourses are commonly occurring effect in winter period. In most places do not cause any complication, but in certain places their occurrence is more frequent and in conjunction with forming ice phenomena into dangerous, as a break-up ice jam or a freeze-up ice jam, can lead to the formation of ice flood. Such places is affected lower Berounka watercourse in section Křivoklát - Vltava confluence. Occurrence and formation of ice phenomena depends on ice regime, which lower Berounka causing frequent problems. Ice regime is the interplay of many factors and ice phenomena are thus generally very difficult to predict because of strongly nonlinear relationships. Artificial neural networks excel in ability to learn on examples, in this case historical data, and ability to apply the knowledge gained on the data present and the future. This work uses multilayer perceptron neural network to realization of ice phenomena prediction based on historical flow and temperature data from the years 1887 - 1940 from the measuring station Křivoklát, which is a place of frequent occurrence of dangerous ice phenomena. The results provided by the learned neural network are comparable to the standard model used in modeling of ice phenomena. Obtained outputs confirmed the possibility of the successful application of neural networks in this area. Their use is possible as e.g. a part of information (warning) system or a system for predicting the occurrence of ice phenomena during winter season, which may lead to the alleviation of their impact on watercourse, surrounding area and residents.

Diploma thesis deals with problems realization of primary prevention of socially pathological phenomena at elementary schools. Presents basic characteristics of the socially pathological phenomena, organisations engaged in the implementation of preventive programs, including recommended methods and procedures. Also proposes a methodology of prevention, the filling of his work. The key part is the custom implementation of the short-prevention program with the use of the materials issued by the Civil association Call hope. Part of the work is also a proposal of variants of the job of the leaves, which is possible in the framework of the implementation of the primary prevention use. In the framework of the master thesis was carried out research whose aim was to obtain the opinion of the on the issue of prevention and the current situation at the primary school from the perspective of the methodology of prevention, to further obtain feedback from pupils who have completed the preventive programs.

This diploma thesis deals with social-pathological phenomena at elementary schools. The theoretical part focuses on the characteristics of pathological phenomena and puts stress on anti-drug prevention at elementary schools. The practical part deals with the drug prevention, especially in the ninth grade from three elementary schools in České Budějovice and its surroundings.

The diploma thesis Negative events in theirleisuretimewithstudentsofsecondaryschools has beenfocused on problemsofsocialpathologicalfeatures by thepresentsecondaryyouth and the influence ofenvironment and education. Thetheoretical part has beenfocused on description, delimitationofessentialdefinitions, as adolescence, socialenvironment, lifestyle, drugs, delinquency, bullying and other. Theobjectiveofthisfinal thesis is to describethe most frequentlyoccurringyouth-relatedsocio-pathologicalphenomena, especiallythosewiththecharacterofoffences. Thisdiploma thesis has beenfocused on monitoring ofthegeneralsituation in the area ofsocialpathologicalfeaturesusingquestionnairesurvey and alsothis thesis has beentrying to findtheirfrequency and to definetheir most frequentformsof these phenomena.

This graduation thesis is considering the social patological phenomena problem targeted on the childern and youth. It is elaborated in the point of the view of the I. and II. degree elementary school teachers. In the introduction there are described selected social patological phenomena and contemporary system of primary prevention, especially in the sphere of action of the Ministry of Education, youth and sports of Czech Republic. The practice part of this thesis puts brain to question-form research of solved problem. The participants were I. and II. degree elementary school teachers. The significant part of the thesis pictures the questionnaire and his interpretation.

The problem of new religious movements is quite a current topic. Therefore, I have decided to write my thesis about this subject. The theoretical part contains the definitions of the basic terms, the characteristics of new religious movements, their catagories and characteristics of their victims, the context of new religious movements and the law, as well as the connection of religious groups and socially-pathologic phenomena. Each of the phenomena is attached to concrete examples of the social groups involved. Both qualitative and quantitative research was employed in the practical part. The methods that have been used to obtain this information were a survey and and interview, as well as the anaylsis of the data and content. One of the files for the survey was collected in the Klatovy Region, while the other was gathered from the people of the Ceske Budejovice Region. Thus, the acquired data were compared in order to reach the aim of the work. The two aims were set based upon the secondary data and one hypothesis was declared for each. The first aim, which was `to find out the public opinion on the problems of new religious movement{\crq}, was connected with the hypothesis `although the public is not sufficiently informed about the religious cults in the region, they are perceived as negative{\crq}. The other aim was to map the socially-pathological phenomena connected with the activity of the movements in these particular regions. Regarding that research, which was qualitative, the hypothesis was declared on the ground of the acquired data. Hypothesis No. 1 was verified. Based on an interview with local policemen, the other hypothesis was set: Although information about the socially-pathological phenomena connected with the activity of the movements reached the public, the Police of the Czech Republic do not have evidence of any crime of that character in the given regions. A booklet was put together, based upon the acquired information, giving the overall information about new religious movements, their characteristics and possible risks. In my opinion, the aim of my thesis was met. The research showed that the public awareness of new religious cults is rather low and the information is mostly distorted. The results of my work may serve as further insight into this problem and, threby it may become a stimulus to raise the state of awareness in this sphere.

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The theoretical framework of social policy work in relation to children and young people at risk of social exclusion. We will focus mainly on prevention of socially pathological phenomena in children and youth. In the practical part of the student filled a prototype web portal for children and youth from Jindřichův Hradec and its surroundings in order to provide this target group supplement information on leisure time activities in a specific area and any associated options (eg, chat, counseling, survey, photo gallery). Student at the same time, propose the concept of updating and data management for the portal.

The objective of this thesis is to introduce negative phenomena in the workplace, specify various forms in which they occur (such as mobbing, bossing, bullying and sexual harassment), define the related terms and find factors which affect the desirable environment within a company as well as the occurrence of the negative factors. The contribution of the practical part of the thesis lies in the analysis of a survey which is focused on the existence of individual phenomena and on determining the strengths and weaknesses of a labour-law relation based on an evaluation of the relation between importance and satisfaction. The thesis concludes by summarizing the general principles of preventive approaches to the occurrence of negative phenomena, and by specifying the roles of individual levels of the company's management.