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The application of magnetic particle for DNA isolation from selekted probiotic products for children
Vozárová, Petra ; Rittich, Bohuslav (referee) ; Španová, Alena (advisor)
In the food industry, it is important to correctly identify the species of bacteria and thier properties so that they can be used as a probiotic in dietary supplements. This is performed using DNA diagnostics. In the experimental part, the DNA from four probiotic dietary supplements for children was isolated. Magnetic particles P(HEMA-co-GMA) were tested for isolation. Isolated DNA was amplified by PCR and the presence of DNA of genus Lactobacillus, Bifidobacterium and Bacillus was demonstrated in the products according to the data declared by the manufacturer. The presence of species L.acidophilus, B.animalis in accordance with the data on the product has been demonstrated by PCR with species specific primers. Using PCR, the presence of L.casei, which was declared by the manufacturer, has not been proven in one product at given experimental conditions.
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Probiotics in food products for children
Vozárová, Petra ; Kvasničková, Eva (referee) ; Španová, Alena (advisor)
Despite of the high level of science and medicine, people are trying to return to the nature and use it for their lives. For example, they are using probiotics, which are live cultures able to reside in the human intestine and there can start their role. The teoretical part of this bachelor thesis deals with probiotic bacteria, their properties and those properties which are important in the food industry and the main part focuses on the probiotics used in baby food. The experimental part of the thesis targets on an analysis of two probiotic supplements for children (BioLac Baby and Probacílium+). There was a DNA isolated from these two products by method of phenol extraction and using magnetic media. The whole DNA isolated from these products was amplificated by genus-specific PCR.
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An empirical study of impact of inclusion and exclusion from an Index on stock prices
Vellechová, Karolína ; Vozárová, Pavla (advisor) ; Fanta, Nicolas (referee)
This thesis studies the effect of index components changes on the stock prices of added and deleted components. Specifically, the thesis follows two market indexes from Western Europe, CAC 40 and DAX 30, in the period from financial crisis in 2008 to 2020. The theory of Efficient Market Hypothesis suggests that index components change should not impact firm's price, because the index membership is supposed to have no new information, the findings of various researchers found out the opposite. There are several hypotheses, which try to explain these effects. In this thesis three methods were used to estimate the effect of addition and deletion, these were abnormal return, abnormal trading volume and close open difference calculation. The results obtained by all three methods were mostly consistent with the results of previous studies of the US indexes. The calculation of abnormal volume reported significant and expected results for both indexes, which suggested that the day before the change has the highest abnormal volume. Also, the results for close open differences discovered expected pattern, that the highest change happens usually on the day after announcement, which informs about how fast investors reply to index change. The abnormal returns for the CAC 40 index show expected significant...
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Productivity and trade spillovers: horizontal crowding-out versus vertical synergies in Europe as a response to foreign direct investment
Hanousek, Jan ; Kočenda, E. ; Vozárová, P.
We analyze the impact of multinational enterprises (MNEs), via their foreign direct investment (FDI), on domestic firms in 30 European host economies, from 2001 to 2013. We incorporate international industrial and trade linkages into a standard theoretical framework and test them empirically on a unique dataset compiled from the Amadeus, Eurostat, UN Comtrade and BACI data sources. While controlling for horizontal, vertical, and export channels at the upstream and downstream levels, we show that the presence of MNEs significantly affects domestic firms, in terms of both changing the market structure and improving productivity. The impact is not always positive, as domestic firms are often crowded-out. However, those firms that withstand such double competition receive additional benefits stemming from trade (export) spillovers. In our complex model, we did not find significant (positive) interactions of domestic firms with horizontal MNEs which would suggest desirable productivity spillovers.
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The application of magnetic particle for DNA isolation from selekted probiotic products for children
Vozárová, Petra ; Rittich, Bohuslav (referee) ; Španová, Alena (advisor)
In the food industry, it is important to correctly identify the species of bacteria and thier properties so that they can be used as a probiotic in dietary supplements. This is performed using DNA diagnostics. In the experimental part, the DNA from four probiotic dietary supplements for children was isolated. Magnetic particles P(HEMA-co-GMA) were tested for isolation. Isolated DNA was amplified by PCR and the presence of DNA of genus Lactobacillus, Bifidobacterium and Bacillus was demonstrated in the products according to the data declared by the manufacturer. The presence of species L.acidophilus, B.animalis in accordance with the data on the product has been demonstrated by PCR with species specific primers. Using PCR, the presence of L.casei, which was declared by the manufacturer, has not been proven in one product at given experimental conditions.
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Probiotics in food products for children
Vozárová, Petra ; Kvasničková, Eva (referee) ; Španová, Alena (advisor)
Despite of the high level of science and medicine, people are trying to return to the nature and use it for their lives. For example, they are using probiotics, which are live cultures able to reside in the human intestine and there can start their role. The teoretical part of this bachelor thesis deals with probiotic bacteria, their properties and those properties which are important in the food industry and the main part focuses on the probiotics used in baby food. The experimental part of the thesis targets on an analysis of two probiotic supplements for children (BioLac Baby and Probacílium+). There was a DNA isolated from these two products by method of phenol extraction and using magnetic media. The whole DNA isolated from these products was amplificated by genus-specific PCR.
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Is prolonging of studies at universities in Czech Republic effective for students and for the society?
Lompart, Oliver ; Fischer, Jakub (advisor) ; Vozárová, Pavla (referee)
Thesis have quantified the total number of students from 1999 until 3th March, 2015 who graduated within the excess year after the standard length of study (SDS). During the reporting period, the total number of finished studies in SDS plus anadditional semester totalled nearly 130,000 students, in SDS plus an additional one year were then finished 117,000 studies. The total number of failed studies, which ended up in the additional extra year in period is 40,000, of which 28,000 in SDS plus one semester and 12,000 in SDS increased by one year. Direct costs of the prolonged studies were estimated at 1.1 billion Kč for 2014. Of which 200 million are sunk costs to studies that have not been completed successfully. The work also calculated the opportunity costs in terms of revenue that could have Czech Republic earned, if the student have finished in SDS and have worked which was estimated at 4.7 billion Kč including both direct and indirect taxes.
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How does gasoline stations in Czech republic react to change of crude oil price on commodity exchange?
Hrabalík, Ondřej ; Stroukal, Dominik (advisor) ; Vozárová, Pavla (referee)
Aim of this thesis was finding out whether there is asymmetry on gasoline market in Czech republic, which is common knowledge or if asymmetry is only illusion. With daily data about gasoline and diesel prices from CZ market and also daily Brent Crude Oil price, thesis tires to prove that there is no asymmetry on the market. Analysis was done with asymmetric error correction model and further testing of asymmetry with koeficients from ECM. Results yield that both gasoline and diesel markets show rather symmetrical reaction on entry price change. Asymmetry was proven only in few lags and final statement is that asymmetry on market in Czech republic is rather illusion then reality.
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An empirical analysis of the impact of digital piracy on movie industry
Pernický, Tomáš ; Vozárová, Pavla (advisor) ; Rod, Aleš (referee)
By the use of questionnaire, which was filled by 516 college students, was performed an empirical study investigating impact of digital piracy on sales displacement and consumer surplus. Firstly, based on the knowledge gained from theoretical literature this thesis assesses: piracy of films increases consumer surplus by 393 CZK per capita in observed data sample. Secondly, there is a negative relationship between the first unpaid consumption which reduces paid consumption by approximately 0.06 unit. However, the second unpaid consumption increases paid consumption by 0.71 unit. These findings suggest strong influence of sampling and network effect, while both are largely caused by the possibility of digital piracy. Therefore, unpaid consumption may increase movie industry sales. Overall, this thesis concludes that digital piracy increases consumer surplus and movie market sales.
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Modely financování školství a jejich vliv na výsledky studentů
Kostrhoun, Tomáš ; Vozárová, Pavla (advisor) ; Čermáková, Klára (referee)
This thesis focuses on the influence of private enrolment in OECD countries on education performance exhibited by students. In my work I analyse panel data portraying annual status of economy and education system in 34 OECD countries from 2000 till 2014. In the first part, I present the historical evolution of the approach to education in terms of public and private goods, in the second part, I provide an overview of related literature that provides a cornerstone for my practical part. In my practical part, I investigate the influence of economic background of OECD countries, educational system and rate of private enrolment on students´ performance. The conclusion of my models did not confirm my hypothesis of beneficial influence of private enrolment on performance. Private enrolment is insignificant in majority of models. Reasoning for this phenomenon may be different approach of students to private education. In some countries, private institutions are perceived as complement and in some as a substitute to good cognitive abilities.
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