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Management styles and their relation to the satisfaction of employees
GRAMANOVÁ, Kamila
Abstract - Leader empowering behaviours and their relation with worker's satisfaction Current state: Nurse's work is physically and mentally demanding. Adequate knowledge and skills are also needed. Nurse managers whose leader empowering behaviours administer to good functioning of medical institutions have therefore a crucial role. In these days a monitoring of job satisfaction is an upcoming matter. According to that we can look for drawbacks and problems and take corrective actions. There is a 9th year of the nationwide research of safety and satisfaction of employees of Czech hospitals. Aim: The first aim of the research was to find out what leader empowering behaviours are used the most by nurse managers. The second aim was to find out how leader empowering behaviours influence satisfaction with work conditions of nurses. Two hypotheses were given. The first hypothesis postulated that nurse managers use democratic empowering behaviours the most. The second hypothesis postulated that satisfaction with work conditions of nurses is changeable, depending on leader empowering behaviours. Methodology: A quantitative method of data capture was chosen. Non-standardised questionaires with 30 closed questions were given out. There were four questions at the beginning to identify respondents. Other set of 15 questions was focused on recognition of leader empowering behaviours. Satisfaction with work conditions was monitored in the last set of questions. Results of the research were processed into graphs and tables. Research set: The research set included nurses working under nurse managers in inpatient wards in České Budějovice a.s. hospital. The questionaire was appropriately filled in by 112 nurses, corresponding 74,7% recoverability. This was used to complete the aim of this thesis. Results: Results of the thesis were divided into two sets. The first set of questions aimed on leader empowering behaviours of managers under whom the questioned nurses of particular departments work. Democratic empowering behaviours were evaluated the most used, according to the first hypothesis. The second set of questions aimed on satisfaction with work conditions. The highest job satisfaction was reached with democratic empowering behaviours. Autocratic, liberal and nonspecific empowering behaviours were used in minimal degree and nurses reported lower job satisfaction among these behaviours. Therefore the second hypothesis was also confirmed. Conclusion: The research pointed out that leader empowering behaviours are one of the factors that influence job satisfaction. It is positive thing that an interest and research in this area increased in the last decade. Periodic evaluation of job satisfaction enables monitoring the direction of its values. According to the survey, a newsletter with recommendations for nurse managers was formed. This newsletter pointed out pros and cons of leader empowering behaviours.
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Iniciace pohybu byčíku, signalizace a regulace pohyblivosti spermií ryb: fyzikální a biochemické řízení
PROKOPCHUK, Galina
The current study attempted to shed light on the regulatory processes and response arrangements of fish spermatozoa during the course of maturation and motility initiation. The first intent of this study was to improve the understanding of the mechanism underlying the acquisition of potential for sperm motility in sturgeon. Up to present work, the physiological process underlying sperm maturation in this species has not been described at all. Our results showed that sperm maturation in sturgeon occurs outside the testes because of dilution of sperm by urine and involves the participation of high molecular weight substances as well as calcium ions present in seminal fluid and/or urine. The second aim of the present study was to investigate the coping mechanisms in fish spermatozoa with osmotic and ionic activating mode, as well as in spermatozoa of euryhaline fishes, to various environmental conditions. We showed that alteration of environmental osmolality might affect the fish sperm in different ways, depending on fish species and modes of spermatozoa motility activation either osmotic or ionic mode. In response to osmotic stress caused by hypotonicity, carp spermatozoa regulated the flow of water across their cell membrane and increased their cytoplasmic volume during their short motility period. In contrast, no indications of sperm volume changes were observed neither in sterlet nor in brook trout spermatozoa, both of which having an ionic mode of motility activation. We also examined the mechanism by which sperm motility triggering in euryhaline fishes can adapt to a broad range of environmental salinity. Our results demonstrated that spermatozoa of euryhaline tilapia, Sarotherodon melanotheron heudelotii, reared in fresh-, sea- or hypersaline water can be activated in hypotonic, isotonic or hypertonic conditions of swimming milieu, provided Ca2+ ions are present at various levels. It was established that the higher the fish rearing salinity or the more hypertonic ambient media at spermatozoa activation, the higher extracellular concentration of Ca2+ ions is required. The results obtained in the present study allow suggesting that osmolality is not the main factor inhibiting sperm motility inside the testis in the S. melanotheron heudelotii. A third aim of this study was investigation of the regulation of motility initiation process and description of flagellar beating initiation in chondrostean spermatozoa. We detected that K+ inhibition of sperm motility in sturgeon can be by-passed due to the pre-exposure of sperm cells to a high osmolality shock prior to its transfer to K+-rich swimming media. Thus, we hypothesized that sturgeon spermatozoa may be activated by use of an unexpected signaling pathway, independent from regular ionic stimulation. The successive activation steps in sturgeon spermatozoa were investigated by high-speed video microscopy, using specific experimental situation, where sperm motility initiation was delayed in time up to several seconds. At motility initiation, the first couple of bends formed at the basal region begins to propagate towards the flagellar tip, but gradually fades when reaching the mid-flagellum. This behavior repeats several times until a stage where the amplitudes of bends gradually reach similar value, what eventually leads to sperm progressive displacement. The total period needed for the flagellum to switch from immobility with rigid shape to full activity with regular propagating bends ranges from 0.4 to 1.2 seconds. In conclusion, the results of the current study bring valuable pieces of information into the general understanding of the processes of maturation of fish spermatozoa, their adaptability to different physical and biochemical circumstances, the extra- and intra-cellular signaling as well as the regulatory mechanisms of motility activation in fish spermatozoa.
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Is there a relation between arts and quality of life?
Krutská, Simona ; Šípek, Jiří (advisor) ; Štětovská, Iva (referee)
This work discusses the potential of art to influence quality of life. The theoretical part introduces general aesthetic-psychological principles, thanks to which art work can appeal to us, having the goal of expressing what is typical and essential for art as a whole, and introduce art work as a place of meeting and a challenge for personal growth with the goal to distinguish it, through this characteristic, from other ways of spending free time. Furthermore, the theoretical part briefly introduces the development of the concept of quality of life including the definition of its overlapping to the philosophical anchoring in the conception of humanistic, phenomenological and positive psychology, and it presents research, which, at least indirectly, deals with the topic of art and quality of life. The actual research part compares the subjectively perceived quality of life of people interested in art (conservatory students, n = 73) with a comparative group (high school students, n = 66), with a focus on the present situation as well as future expectations. The research results show that the conservatory students attain higher values attesting higher perceived quality of life. However, in order to deduce the chain of causation it is necessary to conduct further research in this area.
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The use of (nano)oxides for metal and metalloid stabilization in contaminated soils
Michálková, Zuzana ; Komárek, Michael (advisor) ; Luke, Luke (referee)
The main objective of the thesis was to evaluate the potential of selected Mn and Fe (nano)oxides for the stabilization of metals and metalloids in contaminated soils. The research was focused basically on three materials - commercial nanomaghemite (Fe III), nanomagnetite (Fe II,III) and a synthetic amorphous Mn oxide (AMO). The main aim of the work was to provide a complex view on the chosen stabilizing amendments regarding not just their direct influence on contaminants mobility and stabilization mechanisms, but also their stability and alterations in soil conditions together with influence on soil microorganisms and higher plants. Firstly, adsorption properties of the tested materials towards Cd, Cu, Pb and As were investigated. In this context, the most effective material showed to be the AMO reaching one to two orders of magnitude higher adsorption capacities than Fe III and Fe II,III under given experimental conditions. Interestingly, the rate of As(V) adsorption onto AMO was increasing with increasing pH as a result of high pHzpc of the AMO (8.1) and significant dissolution of this phase at lower pH values. As a next step, the influence of (nano)oxides on metal(loid)s mobility and other physico-chemical soil characteristics after application to contaminated soil was examined. Again, the AMO proved to be the most efficient in reducing mobile pools of Cd, Cu, Pb, Zn and As. On the other hand, Fe III and Fe II,III addition had generally less significant effects on contaminants mobility. AMO application further resulted in an increase of soil pH connected with AMO dissolution and unwanted decomposition of soil organic matter. When (nano)oxides alterations in soil conditions were observed, MnCO3 coatings were identified on AMO surface while no significant changes were recorded for Fe III and Fe II,III. As the MnCO3 formation was connected with increased AMO stability, AMO particles synthetically covered with MnCO3 coating (denoted as SM AMO) were prepared. Although the SM-AMO had a lower mass loss in soil than pure AMO, the stabilizing efficiency was almost the same for both materials. The differences in surface composition of both materials were decreasing with time as MnCO3 naturally precipitated on the AMO surface in soils while the SM AMO coating was gradually dissolving. When investigating the effect on soil microbiota, AMO efficiently promoted soil microbial activity while no significant changes were observed in the case of Fe III and Fe II,III. The AMO was also able to reduce the uptake of Cd, Pb and Zn by sunflower (Helianthus annuus L.), eliminate Zn phytotoxicity symptoms and increase biomass yield. On the other hand, toxic levels of Mn released from the AMO in an acidic soil were found in sunflower tissues. AMO application is thus recommended for contaminated neutral or slightly alkaline pH with a higher cation exchange capacity in order to avoid unwanted release of Mn. Finally, various types of AMO-biochar composite sorbents were recently prepared and field experiment focused on stabilization of Cd, Pb, Zn and As using studied materials is currently under preparation. The combined results from the thesis highlight the importance of a complex experimental approach dealing with all parts of the contaminated soil environment in order to obtain complete information about the efficiency and usefulness of any newly developed stabilizing amendment.
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Management of production populations of forest tree species utilizing methods of mathematical programing
Hořejší, Matouš ; Lstibůrek, Milan (advisor) ; Stejskal, Jan (referee)
Breeding of forest tree species is a great opportunity for the entire forestry sector to succeed in the present modern World. Genetically improved forest trees have much better growing quality and they can sustain higher stress and unfavorable climatic conditions.
Efficient algorithms are necessary for optimizing and establishing seed orchards. These should optimally select clones as parents in future seed orchards. In the present thesis, we developed model, based on mathematical programming methods, which creates mix of clones with the maximum breeding value and constraints on genetic diversity.
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Scattering of Sun Radiation on Microparticles in a Closed Environment of Water Bath
Jelínek, Marek ; Pecen, Josef (advisor) ; Zeman, Josef (referee)
This thesis deals with an alternative technology used to illuminate spaces without access to daylight. Technology uses primarily scattering and also reflection and refraction of sunlight in the optical environment of the PET bottles with water and microparticles. The base of technology consists of a plastic bottle filled with water with microparticles and positioned so that it vertically penetrates the roof interior. The effect of scattering of sunlight in the bottle is amplified by using a suitable material of the microparticles.
Review of literature deals with areas that the technology is primarily designed for and the current state of expansion. The principle of technology and factors affecting its efficiency are explained.
The aim of the experiment was limited testing and selection of suitable material of microparticles and their concentration for the possibility of practical use within the technology described. Several measurements were performed of the intensity ratio of incident and scattered light using selected materials of microparticles of various concentrations. Based on the obtained values and their comparison a solution containing 0.5 g of limestone into 1.5 l of water was selected as the most suitable optical environment for the solution.
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Effect of dairy cows housing technology on mastitis occurrence
Brzáková, Lenka ; Stádník, Luděk (advisor) ; Jan, Jan (referee)
The objective of my bachelor thesis was evaluation of quality of housing, milking and making analysis of mastitis on chosen farm.
First part of the thesis contains of literature summary about housing technologies, mastitis issues, their detection, originators, therapy and factors affects against their incidence. Thereafter is this part focused on tipes of milking parlours, corect milking procedures and mechanized milking.
Materials and methodes of the thesis contains the characteristics of chosen farm where the quality and technology of housing, milking and nutrition of milk cows and other factors affecting presence of mastitis such as taking care of cloven hooves was watched in 2014. The incidence, detection and curation of mastitis was watched afterwards. Montamilk s.r.o. farm cradles 1,200 pieces of cattle and milk cows are about 419 out of it.
In the part of thesis named results was watched and evaluated inspection of efficiency in inspecting year 2013 - 2014, which was stated on first lactated cows and on cows which are on second and further lactation. Milk yield was far better with cows on second or futher lactation according to data gathered during the study and expressed by diagram. Diagram of milk components (fat and proteins), which was divided by lactation, was expressed in this part too. Other examinated parameters was occurrence of mastitis - which milk cows, in which season is the occurrence more often, treatment and cost of treatment for one cow. At the end the number of somatic cells for 2014 was represented in diagram for particular lactations.
In part of thesis called discusion the comparison was drowed between results from chosen farm and national average of efficiency checks. From results is obvious that milk cow in Mnotamilk has been better in first lactated cows by 427 kg and in second and more lactated cows by 602 kg than is the avarage in Czech republic.
Far more the milk components in Montamilk was compared with rest of Czech republic and the results was quite similar. The volume of fat of Montamilk cows was lower in every lactation in comparison with milk cows from Czech. Value of fat in Czech republic avarage first lactated cows is 3,87 % in Montamilk 3,85 % and the value of fat on second and more lactation cows is 3,86 % in Czech average and 3,81 % in Montamilk.
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Effect of sex on growth and formation of dorsal muscle of pigs
Fáberová, Gabriela ; Čítek, Jaroslav (advisor) ; Zadinová, Kateřina (referee)
Effect of sex on growth and formation of dorsal muscule of pigs Summary The aim of this thesis is to determine the influence of gender on the growth and formation of the pigs dorsal muscle. Growth is one of the basic phenomenon characterizing living organism. Is a creation of nonliving to living matter. The amount of body mass is not constant through the life, it is changing significantly. In the early postnatal period is skeleton growing faster compared to muscles and fat then leads to faster growth of muscle and in the last period called maturity to the fattening. Evaluating growth has a significant gender effect. In case of pigs, it is common to feed barrows and gilts. Nowadays it begins to think about feeding of boars or the imunocastrates. Due to different hormonal activities we can expect different muscle and fat deposition. The task of this study was to clarify the influence of gender on the formation and growth of pigs dorsal muscle. There were 72 pigs tested in total. Pigs were housed in pairs in cotes and divided by gender for pigs, boars, imunocastrates and sows. This subpopulation of genotype DanBred animals were divided to 1/4 (18ks) uncastrated male pigs (K) 1/4 (18ks) hormonally castrated male pigs (I), 1/4 (18ks) barrows (V) and 1/4 (18ks ) gilts (P). Average live weight of pigs at the start of the trial was 28.5 kg, while the test was conducted to average 107 kg bodyweight. Through all time pigs were fed ad-libitum KKS. During the test it was monitored at weekly intervals individual live weight, back fat thickness at A, B, muscle depth at A, B and the total percentage of muscle for all categories of pigs. The obtained results show that the growth and formation of a long dorsal muscle are influenced by gender. When comparing the weight in a given period, we conclude that during the time the difference between gilts and imunocastrates grow up. Best growth had imunocastrates gilts similarly, only was there an earlier stop of the growth. The highest increase in fat and muscle measured at the A and B, occurred in pigs, in sows we can see increasing gains in fat with respect to the period in which they are fattening. Boars had the lowest backfat thickness, imunocastrates. With imunocastrates we evaluate low fat increase compared to the beginning of the observation. The biggest muscle depth measured at A and B had the barrows with gilts and imunocastrates and especially boars did not reach the values as barrows and gilts, who had the highest muscle depth. Biggest % of muscle was measured in sows. A large proportion of muscle can be seen in male pigs. The proportion of muscle mass of imunocastrates was under the average and worst ratio of muscle had especially at the end of feeding barrows indicating that with increasing age there is a significant fattening, compared to the remaining groups of pigs Keywords: pig, growth rate, muscle fibers
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The influence of time in feed enrichment with unsaturated fatty acids to selected parameters of pig carcass value with regard to the fatty acid composition of intramuscular fat
Pantoflíček, Jiří ; Čítek, Jaroslav (advisor) ; Miloslav, Miloslav (referee)
The thesis aims to evaluate the impact of aliment with higher contents of unsaturated fatty acids, consumed for a different period of time, to utilitarian attributes of pigs before a slaughter, with respect to the composition of fatty acids in the intramuscular fat of tested animals.
The factors that influence the quality of meat are interior, exterior and technological. Among the qualitative markers of quality of meat we rank the share of meat and fat, acidification rate, color, viscosity, contents of intramuscular fat (marbling), smell, taste, juiciness and delicacy. Together with hygienic and nutritive attributes, consumers and processors consider these technological and sensory aspects to be the most important.
The ultimate goal of this thesis is to compare the impact of different length of feeding soy oil on parameters of pork meat quality and growth.
However, the interference of growth attributes was inconclusive and the test result came similar in different groups of tested pigs.
What was influenced by adding the soy oil into the feed is the fatty acids profile. The contents of fatty acids remained unchanged in every test group. Over time the content of monounsaturated fatty acids decreased. The most significant change occurred in representation of polyunsaturated fatty acids, which increased in the test groups with longer period of feeding with enriched feed, mostly at the expense of monounsaturated fatty acids.
The differences between the test groups of pigs were statistically inconclusive; therefore the soy oil enrichment did not worsen the technological parameters of meat and fat quality.
The longer period of feeding the soy oil enriched feed led to significant increase in polyunsaturated fatty acids. According to the findings, adding the soy oil into the feed will have no effect at all if done short time before the slaughter.
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Abundance of honeybee
Brandejsová, Jana ; Titěra, Dalibor (advisor) ; Marcela, Marcela (referee)
Determining place thesis Abundance of bee colonies in the country and the carrying capacity of the land register. Establishing a Connection in Úvaly near Prague with three beekeepers. For these three beekeepers were required to determine reserves of pollen with three visits in the period of May, June and July. Each measurement was carried out always at the three strongest hives. Proven reserves of pollen was performed using photographs of each honeycomb in the hive. After calculating reserves of pollen, to assess the value of honey to the surrounding plants. The conclusion was to determine whether a load for the site Úvaly near Prague is present or not enough bees and suggest possible solutions.
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