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Influence of meadow management on the migration behavior of selected species of butterflies
Bubová, Terezie ; Langrová, Iva (advisor) ; Farkač, Jan (referee)
Migrations are the key process and one of the basic biological features, which allow survival of endangered species in fragmented landscape. In the last decades, agriculture intensification, industry and urbanization caused that number of natural butterfly habitats has significantly decreased. The localities originally suitable for butterflies are currnetly converted to farmland or building plots. This PhD thesis aimed to find a compromise solution of meadow management, which should allow a commercial use and concurrently do not jeopardize the continued existence of endangered or threatened species. The main idea of this study was in the intentional emigration causing in the middle of flight period, which should lead into resettlement of the population to another (potentially more suitable) locality. Possibility of aimed manipulation with butterfly emigrations would be considered as a major breakthrough in their protection.
The investigated species Phengaris nausithous (Bergsträsser, 1779) and Phengaris teleius (Bergsträsser, 1779) are both considered to be flagship species for protection of European butterflies at open meadows. This study is based on research, which was carried out in 2013-2015 at 17 patch in localities Dolní Labe, Czech Republic. In above mentioned years, one selected meadow was mowed in the middle of flight season and the emigrations were then monitored using mark-release-recapture method. Results of population and migration characteristics were calculated in MARK 8.1 software. Subsequently, the effect of mowing on emigration (comparison of emigrations from the meadow before and after mowing) was evaluated using Statistica 13.
The hypotheses of this study were based on the assumption, that the loss of resources after well-timed mowing should increase the activity of adult butterflies. During the monitoring, number of emigrations was increased only in flight season 2015. Unfortunately, the statistical evaluation did not show significant effect of mowing on migrations. On the other hand, the hypothesis dealing with colonization of nearest meadows was confirmed.
Effect of intentional emigration caused by management interventions was unfortunately not proved. However, we found out, that even though the population at one mowed meadow decreased clearly, the metapopulation size at the locality remained more or less stable.
At investigated (mowed) meadow, there was observed a sharp decline of P. nausithous abundance. On the other hand, P. teleius population was only slightly reduced. It is therefore conceivable, that P. teleius are not as susceptible to innapropriate term of mowing. The results obtained in our research conclusively displayed no possible positive effect of mowing in the middle of flight season and a necessity of suitable management maintenance at localities inhabited by Phengaris butterflies.
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Extensions to Probabilistic Linear Discriminant Analysis for Speaker Recognition
Plchot, Oldřich ; Fousek, Petr (referee) ; McCree,, Alan (referee) ; Burget, Lukáš (advisor)
Tato práce se zabývá pravděpodobnostními modely pro automatické rozpoznávání řečníka. Podrobně analyzuje zejména pravděpodobnostní lineární diskriminační analýzu (PLDA), která modeluje nízkodimenzionální reprezentace promluv ve formě \acronym{i--vektorů}. Práce navrhuje dvě rozšíření v současnosti požívaného PLDA modelu. Nově navržený PLDA model s plným posteriorním rozložením modeluje neurčitost při generování i--vektorů. Práce také navrhuje nový diskriminativní přístup k trénování systému pro verifikaci řečníka, který je založený na PLDA. Pokud srovnáváme původní PLDA s modelem rozšířeným o modelování neurčitosti i--vektorů, výsledky dosažené s rozšířeným modelem dosahují až 20% relativního zlepšení při testech s krátkými nahrávkami. Pro delší testovací segmenty (více než jedna minuta) je zisk v přesnosti menší, nicméně přesnost nového modelu není nikdy menší než přesnost výchozího systému. Trénovací data jsou ale obvykle dostupná ve formě dostatečně dlouhých segmentů, proto v těchto případech použití nového modelu neposkytuje žádné výhody při trénování. Při trénování může být použit původní PLDA model a jeho rozšířená verze může být využita pro získání skóre v případě, kdy se bude provádět testování na krátkých segmentech řeči. Diskriminativní model je založen na klasifikaci dvojic i--vektorů do dvou tříd představujících oprávněný a neoprávněný soud (target a non-target trial). Funkcionální forma pro získání skóre pro každý pár je odvozena z PLDA a trénování je založeno na logistické regresi, která minimalizuje vzájemnou entropii mezi správným označením všech soudů a pravděpodobnostním označením soudů, které navrhuje systém. Výsledky dosažené s diskriminativně trénovaným klasifikátorem jsou podobné výsledkům generativního PLDA, ale diskriminativní systém prokazuje schopnost produkovat lépe kalibrované skóre. Tato schopnost vede k lepší skutečné přesnosti na neviděné evaluační sadě, což je důležitá vlastnost pro reálné použití.
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Multimedia Data Processing in Heterogeneous Distributed Environment
Kajan, Rudolf ; Ferko,, Andrej (referee) ; Míkovec, Zdeněk (referee) ; Herout, Adam (advisor)
Pervasive computing sa zameriava odstránenie zložitostí pri interakcii s výpočtovou technikou a zvýšenie efektivity pri jej každodennom používaní. Ale i po viac ako 15 rokoch od sformulovania hlavných cieľov Pervasive computingu existujú aspekty interakcie ktoré stále nie sú súčasťou užívateľskej skúsenosti s dnešnou technológiou. Bezproblémová integrácia s prostredím vedúca k technologickej neviditeľnosti, alebo interakcia naprieč rôznymi zariadeniami predstavujú stále veľkú výzvu. Hlavným cieľom tejto práce je prispieť k tomu, aby sa ciele Pervasive computingu priblížili k realizovaniu tým, že predstavíme spôsob intuitívneho zdieľania informácií medzi osobným a verejne umiestneným zariadením. Predstavili sme tri interakčné techniky, ktoré podporujú intuitívnu výmenu obsahu medzi osobným zariadením a zdieľaným displejom. Tieto techniky sú založené na prenose videa, rozšírenej realite a analýze pohľadových dát. Okrem interakčných techník sme tiež predstavili mechanizmus pre získavanie, prenos a rekonštrukciu aplikačného stavu na cieľovom zariadení.
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Effective using of potential of bilingual environment
HOVORKOVÁ, Eva
The dissertation thesis "How to use the potential of bilingual environment efficiently" endeavors to highlight bad as well as good practices in bilingual upbringing. Bilingualism represents at present a very topical issue. In connection with increasing globalization, the issue of learning of foreign languages is more and more emphasised. People living in mixed marriages have often no idea how to bring their children up. In many cases they take steps that lead to irreversible consequences. The theoretical part of the thesis gives a survey of bilingualism, the division and kinds of bilingualism and ways of its acquisiton. The theory is practically illustrated in the empirical part through various examples. 42 case studies have been carried out, which include characteristic and uncharacteristic respondents. The findings of the research are compared with the facts mentioned in the reference works. The aim of the dissertation thesis is to find out which educational methods should parents follow in bilingual education and which methods they should better avoid.
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Impact of Current Information Technology Trends on the Future of Grey Literature
Savić, Dobrica
This paper deals with emerging information technology (IT) and other trends and their impact on the grey literature. It is based on analysis of the most prevalent trends in general information management and new IT solutions, which will define and impact the digital future of related information management activities, as well as the grey literature. The analysis was done based on seven reports issued in 2016 by five world leading consulting and service companies that have a special interest in researching the impacts of IT on our business environments, work procedures and behaviors.
Fulltext: idr-1032_3 -  PDF
Slides: idr-1032_1 - PDF; idr-1032_2 - PDF
Video: idr-1032_4 -  MP4
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Measuring the Performance of Human Capital in the Building Company
BURIÁNKOVÁ, Irena
The main objective of this work is to measure the performance of human capital in the chosen building company. Another goal is to bring suggestions for improvement that will lead to increasing to the efficiency of human capital. The thesis consists of two parts. The theoretical part provides information from the Czech and foreign literature. Knowledge of theoretical part is then applied to the practical part. Basic information about the company is included in the practical part and comparison with competing businesses is also mentioned. But the most attention is paid to the performance of human capital, which is measured by labour productivity. Two indicators are selected for the calculation of labour productivity - sales and added value. Both indicators are compared in two ways; the first is average number of employees and the second personnel costs. Calculations are performed by internal resource of the company for the period 2007-2014.
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THE DRAMATICAL SCRIPT AS A NECESSARY BASIS FOR SPACIAL REALIZATOIN
Tretiag, Štěpán ; KORČÁK, Jakub (advisor) ; HRBEK, Daniel (referee)
Using the concrete examples of my practical bachelor work my intent is to retrospectively describe and reflect on our scenic realization of the play Missing by south-African author Reza de Wet. The essence of a modern dramatic direction is to perceive the script of a play as a model which becomes a basis for its interpretation and the subsequent staging of the play. It is the process from the initial interpretation to final scenic realization I wish to focus on in my work.In the first part I will be dealing with creation of a physical space, that being stage design. I will try to capture what lead us to its final shape and how the basis for that can be found in the script of the play as well as the potential capability of the physical space to become a dramatic space. Its ability to create a platform for the actors to proceed from and how can it provoke them into acting, in particular. In the second part I will be dealing with the dramatic space, ergo the spacial expression of relationships and themes. I will proceed again retrospectively, focusing on how we managed to achieve the stage image which is functioning as a materialized metaphor. I will focus mostly on non-verbal actions, but with regard to the fact, that dramatical script is the basis for our realization of the play.
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Event marketing
NOVOTNÁ, Michaela
The goal of the thesis is to suggest changes for the upcoming period, based on the analysis of the chosen event. The thesis is divided into two parts, a theoretical and a practical part. The theoretical part deals with the problem of individual tools of marketing communication mix first. Their main objective, their advantages and disadvantages are always mentioned. The following chapter of the theoretical part is already focused at the thesis topic, the event marketing. This part summarizes the basic definitions, the typology of event marketing and the newest trends. The practical part deals with cocolate festival analysis. First, the festival is introduced and then the analysis of festival perception is carried out through a questionnaire survey, and an analysis of information obtained through participant observation. Suggestions that are based on these analyses, are worked out leading to a possible improvement of this festival.
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Application of logistics processes in online shop
MELENOVÁ, Štěpánka
The aim of this bachelor paper was to evaluate an activity of the company TV Products CZ, Ltd. during a calendar year, assess the advantages and disadvantages of online shopping from the customer's view and compare it with traditional shopping at stores. In the theoretical part, the terms of e-shop and store were explained. This part was also occupied with the e-shopping history and development. Then this part was focused on the payment methods and the level of the customer services. In the practical part, the selected company was introduced at first and then all activities from orders to goods delivery to customers were monitored. It was realized by personal visit to this company. Through this visit the shortcomings were detected and the measures which lead to improvement and customers' satisfaction were created. The company should pay attention to these shortcomings and focus on their removal
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Doped DLC coatings for biomedical applications
Písařík, Petr
Nowadays there are materials having excellent properties for use in medicine (Diamond-like carbon, Hydroxyapatite, …). Diamond-like carbon (DLC) is a metastable form of amorphous carbon containing bonded carbon atoms of sp2 and sp3 hybridized orbital. DLC layers are semiconductors with high mechanical hardness, chemical inertness, low coefficient of friction, high thermal conductivity, good electrical and optical properties, biocompatibility and no cytotoxicity. All properties of the films are not always ideal, so it is necessary to modify the layer. One example of how to modify the properties of thin layers are dopations. The incorporation of dopants in films may lead to greater multifunctionality and much improved properties. Most modifications were made to modify contact angle and surface energy, to reduce internal stresses, to decrease surface roughness, coefficient of friction or wear....
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