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Survey of the validity of personality questionnaires in the prediction of work performance
Červený, Daniel ; Remr, Jiří (advisor) ; Jeřábek, Hynek (referee)
The main goal of the rigorous work is to find key personality dimensions for predicting work performance in selected job positions. In the introduction, the author focuses on placing the subject of rigorous work in the context of the sociological disciplines of sociology of work and sociology of business. In the next part, the author focuses on the development of individual industrial revolutions and organization approaches. We currently live in Industry 4.0, which is associated with digitization, robotization, implementation of automated process in work activities and growing demand for new skills and competences. In addition to new expertise, soft skills are increasingly in demand. In the next part, research into the validity of BIG-5, 15FQ1 and CPAI-2 personality questionnaires in predicting work performance is analyzed, ways of working with soft competences within the Czech Republic are identified, and links of these competences to the individual scales of the Bochum Personality Questionnaire (BIP) and the Performance Motivation Questionnaire (LMI) are found. In the final part, the author deals with the conducted surveys. The aim of the survey among HR professionals was to identify the required values of the BIP and LMI questionnaire scales for selected job positions in terms of the success of...
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Hip joint stability and injury prevention in sport
ČERVENÝ, Daniel
The aim of this thesis is to describe, how does the strengthening of stabilization hip muscles affect whole postural stability and at the same time how does it affect standing on one leg for athletes in different sport. The theoretical part of the thesis summarizes information about anatomy a kinesiology of hip joint. Includes important angles measured in the age of hip joint development. Besides is described postural stability, and stability function in the various levels on human body with all the participated muscles while hip joint stabilization. In the practical part is research of three probands doing cross country skiing, athletics, and triathlon. Measurement was consisting of posturography, kinesiological analysis and by performing special tests focused on hip joint. All the patients received paper of exercises to do at home with addiction of individual exercises for patient's pathology. At the end of the therapy was compared all the information from the first and second measurement and done conclusion. The resulting effect was positive, because in most patients was improvement of secondary performing test measuring stability, placement of COG and lateral stability of hip joint. Another result was subjective evaluation in the way of dialogue. Patients evaluated the therapy as a positive for them and wanted to continue in cooperation.
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Survey of the validity of the methods of employee selection
Červený, Daniel ; Kuchař, Pavel (advisor) ; Tuček, Milan (referee)
The Diploma thesis "Survey of the Validity of the Methods of Employee Selection" deals with analysis of methods validity that is used for the company employees'selection. On the basis of literature studied, author identifies following keywords related to the subject of the diploma thesis: Human Resources Management, Vision, Business strategy, HR strategy, Human Resources planning, Employees' selection and recruitment, Fluctuation and Evaluation of Work performance. Author further focuses on the research of validity of personal selection methods that have already been published earlier. Author performed particular research solution that took place in three phases. The first stage explored an optimal mix of selection methods for recruitment according to particular positions. Respondents were experts specializing on issues of Human Resources issues. The second phase focused on research of validity of personal selection methods. Validity of selection methods was examined by correlation coefficient between predicted work performance estimated by the given method, and the measured real work performance of the recruited employee in the evaluation system of the work performance. HR staff was questioned. The third phase examined the appropriateness of using selection methods, which were determined by...
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Nové postupy biomonitoringu cizorodých látek ve vodním prostředí
ČERVENÝ, Daniel
Within the presented work, several approaches of biomonitoring were studied. A well-established method for human health risk assessment was applied to evaluate the quality of fish from open waters in the Czech Republic. As this work is targeted on sport fishermen, who frequently consume their own catches, besides the publication in scientific journal, a brochure with results of this study was distributed via the Czech Fishing Union. Health risks for consumers related to the consumption of wild fish were found strongly species and locality dependent. As there is no risks related with the consumption of carp (Cyprinus carpio) at all investigated sites, frequent consumption of predatory fish should be avoided at some fishing grounds. The use of passive samplers has become more and more attractive in the last two decades. As these devices are able to mimic the biological uptake of chemicals, their potential for replacing fish as bioindicators in routine biomonitoring programmes is evident. In our study, the comparison between analysis of fish tissues and POCIS extracts from selected sampling sites confirms this idea about interchangeability of these indicators in the case of PFASs as target pollutants. Moreover, no metabolic transformation of contaminants present in water take place in passive samplers contrary to living organisms, thus these reflect the actual contamination at the locality more precisely. The use of passive samplers completely fulfils the internationally accepted principles of Replacement, Reduction, Refinement (the three R´s). Another promising approach using YOY fish as bioindicators was evaluated within the present study. Multispecies samples of YOY fish homogenate was found as a better indicator for wide range of pollutants than muscle tissue of adult fish within one species from the same locality. As all inner organs and tissues are presented in analysed samples, more target pollutants in higher concentrations are detected compared to the muscle of adults. Besides the higher sensitivity in pollutants detection and quantification, practical and economic benefits are of concern in the case of the YOY fish approach. The YOY fish approach also particularly fulfil the three R´s strategy, as sampling of this age group of fish has a smaller impact on the environment than the sampling of adults. In case of mercury, that was found as a limiting contaminant for the consumption of fish from open waters in the Czech Republic, a nonlethal method of finclips sampling can be used for the monitoring of this compound in aquatic environments. Besides the monitoring, our optimised method for the estimation of muscle tissue concentrations could be used for human health risk assessment as well. The difference between real muscle concentrations and concentrations estimated using our method differs less than 10% in most of the investigated localities. Benthic organisms are an important part of the food web in aquatic environments, but insufficient information about its contamination is available. In another study included in this thesis, first evidence about bioaccumulation of certain pharmaceuticals in benthic organisms was described. Although, pharmaceuticals are generally considered to be not accumulative in organisms, our study proved that certain pharmaceuticals have bioaccumulation potential. From this finding, it is evident that not only the concentrations of pharmaceutical dissolved in water but also the diet represents an important exposure pathway of contamination by these compounds for organisms (fish) inhabiting aquatic environments.
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Assessment of fish contamination in important fishing grounds
ČERVENÝ, Daniel
The object of this thesis is the assessment of fish contamination by selected foreign substances as toxic metals, polychlorinated biphenyls and pesticides in 31 selected fishing grounds. The monitoring was realized between years 2006 and 2010. Fish were caught by electric device and fishing rods. Concentrations of Hg, Cd, Pb, PCB, DDT, HCH and HCB in fish muscle tissues were monitored. Common bream (Abramis brama) was selected as a reference species for a comparison of the monitored sites. The results of analysis were compared with valid hygienic limits. Overrun of hygienic limit for some of the monitored pollutants were observed in 18 localities. We found mercury as a major pollutant in the aquatic environment.
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Evaluation of fish contamination in selected fishing districts
ČERVENÝ, Daniel
The object of this thesis is the assessment of fish contamination by selected foreign substances as toxic metals, polychlorinated bifenyls and dioxines in selected fishing districts. For the thesis' purpose the attractive fishing districts Vltava 20 - Kořensko (421090), Údolní nádrž Rozkoš (451200), Odrava 1 ? ÚN Jesenice (431200) and Vltava 28 P (423040) were selected. Fish were caught by electric device and fishing rods. Foreign substances content monitoring was made in fish muscle tissues from selected locality. Concentrations of Hg, Cd, Pb, PCB, DDT, HCH, HCB, and dioxines in fish muscle tissues were monitored.
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