National Repository of Grey Literature 65 records found  beginprevious45 - 54nextend  jump to record: Search took 0.01 seconds. 
The sources of thoughts of the Czechoslovak foreign policy after 1989
Česenková, Adéla ; Druláková, Radka (advisor) ; Jeřábek, Petr (referee)
The bachelor thesis explores the sources of thoughts of the Czechoslovak foreign policy after 1989. The first aim of the thesis is to formulate general principles that laid foundations for the foreign policy planning. This is achieved by analysing the ideas of the three principal foreign policy representatives in the years from 1989 to 1992: president Václav Havel, minister of foreing affairs Jiří Dienstbier and prime minister Marián Čalfa. The second aim of the thesis is based on the analysis of the goals of the foreign policy after 1989 that captures the implementation of the respresentatives' sources of thoughts into the foreign policy planning and potential deflections from the original thoughts. In conclusion, majority of the principles formulated on the basis of a synthesis of the representatives' sources of thoughts influenced the foreign policy planning. Some deflections concerning the security cooperation in Europe were noticed.
Cultural Diplomacy of Slovakia within the Presidency of the Council of the EU
Ihnátová, Ivana ; Peterková, Jana (advisor) ; Jeřábek, Petr (referee)
The main topic of the bachelor thesis is the cultural diplomacy of Slovakia during its Presidency of the EU Council, which was held in the second half of 2016. Despite the difficult task and challenge the Presidency was for Slovakia, it also gave it the opportunity to present its art and culture to a wider audience and to be more seen on the international scene. Therefore, the aim of the thesis is to characterize cultural diplomacy during the Slovak Presidency, to describe its individual activities, the cultural program and to evaluate its overall success. The first chapter of the thesis deals with the very concept of cultural diplomacy, its definition, the placement of cultural diplomacy in the system of foreign cultural policy, the relationship between cultural and public diplomacy, etc. The second chapter focuses on the cultural diplomacy of Slovakia, its actors, strategy and tools. In addition, it points out the difference between the cultural diplomacy of small and large states. The third part eventually deals with the cultural diplomacy of Slovakia within the Presidency of the Council of the EU.
Localization of deformation in rocks with existing anisotropy: consequences for geodynamic interpretations
Bukovská, Zita ; Jeřábek, Petr (advisor) ; Stünitz, Holger (referee) ; Grasemann, Bernhard (referee)
Localization of deformation occurs in Earth's crust as a consequence of applied stress and is widespread phenomenon that can be found in crustal rocks. Such localization of deformation can be mostly seen in a form of shear zones. Small shear zones referred as shear bands or S-C structures are often used as kinematic indicators. However, the evolution and kinematic continuity of such structures is not well identified, which makes it problematic when interpreting regional geodynamic evolution. Two possible cases were distinguished and described in this thesis: a) kinematically discontinuous S-C structures formed during two deformation events and b) kinematically continuous S-C structures formed during single deformation event. Kinematically unrelated S-C structures were studied in westernmost part of Tauern Window in Eastern Alps and in Gemer-Vepor Contact Zone in Central West Carpathians where previous geodynamic interpretations might have misinterpreted localization structures. Kinematically continuous shear bands were studied in South Armorican Shear Zone where the S-C fabrics were originally defined and described (Berthé et al., 1979). Two fabrics that crosscut each other at small angles forming S-C geometries were documented during field work and studied from macroscale down to microscale or...
Record of assimilation of migmatite xenoliths in the Lipnice granite
Jirků, Markéta ; Jeřábek, Petr (advisor) ; Jedlička, Radim (referee)
This bachelor thesis presents new results on characterization of migmatite xenoliths assimilation, which occurs in the heterogeneous Lipnice granite of the Melechov massif in form of lenses, schlierens and biotite clusters, and aims to identify the relicts of assimilated migmatites in the homogeneous granite. The thesis consists of three main chapters. The first one focuses on a broad introduction into the geology central European Variscides, brief characterization of the Bohemian Massif, lithology of Moldanubian Unit, and evolution of the associated Variscan granite magmatism. Second part of the thesis deals with the granite petrogenesis, and characterization of granite plutons of the Moldanubian batholith, including the northernmost exposure, the Melechov massif. The third part presents results of my own research, which comprises petrography of studied thin-sections and chemical analysis of whole rock and minerals, in particular the micas and feldspars in the Lipnice granite of the Melechov massif. The research is based on analysis of four thin-sections of the Lipnice granite using optical polarization and electron microscope as well as the microprobe. Observing of the chemistry of biotite in xenoliths and in granite and their correlation shows, that biotite in the Lipnice granite is rather homogeneous...
Characteristics of polyphase deformation in quartz microstructure: an example from the Krkonoše-jizera Unit
Očenášková, Eva ; Jeřábek, Petr (advisor) ; Závada, Prokop (referee)
Quartzite samples taken in the east part of Krkonoše-Jizera Massif belong to metasedimentary cover of paraautochtonous unit. Rocks underwent a polyphase deformation which established a strong shape preffered orientation (SPO) of quartz grains. In folded quartz veins, deformation overprint mechanisms and microstructure, CPO and SPO relations were studied. For determination of crystal preffered orientations (CPO) the method of computer integrated polarization microscopy (CIP) was used. Microstructural analysis was focused on grain sizes, aspect ratios, long axis orientations and their relation to the deformation overprint grade. Results implies that dominant mechanism of quartz grain recrystallization is grain boundary migration. Folds were created by simple shear in microscale. The deformation overprint grade is strongest in the top of the fold hinge, where grains achieve highest aspect ratios and sizes. In the lower parts of the fold hinge the original CPO is preserved in small grains and SPO has similar orientation to original CPO. During folding CPO and SPO rotated with shear direction in dependance on deformation overprint grade.
Conditions and mechanism of emplacement of the Saxon Granulite Massif in Saxothuringian
Ramešová, Olga ; Jeřábek, Petr (advisor) ; Štípská, Pavla (referee)
The Saxonian Granulite Massif in the Saxothuringian Domain of the Bohemian Massif, is represented by a single granulite body consisting of felsic and mafic granulites formed during Variscan tectono-metamorphic event. The granulites with peak metamorphic P-T conditions of ~2.3 GPa and 970-1060 řC (Fuhrman and Lindsley, 1988; Rötzler and Romer, 2001) were exhumed and emplaced into the palaeozic sedimentary cover sequence, which resulted into contact metamorphism affecting these metasedimentary rocks and development of a contact metamorphic aureole. In the map view, the granulite body has elongated shape with the long axis oriented in NE- SW direction and it is surrounded by the so called schist mantle reflecting the extent of the contact metamorphic aureole. Within two kilometers distance away from the contact with granulite body, the metamorphic grade in metasediments decreases from cordierite gneiss, andalusite bearing micaschist to phyllite. Detailed field structural analysis in the studied area revealed a deformation record associated with four main deformation phases. In granulites the oldest deformation fabric contains kyanite and sillimanite. This fabric is locally overprinted by the subhorizontal green schist facies fabric, mainly along the margins of the granulite body. In metasediments, the...
Theoretical study of enzymes related to carcinogenesis: DNA polymerase β and cytochromes P450
Jeřábek, Petr ; Martínek, Václav (advisor) ; Entlicher, Gustav (referee) ; Ettrich, Rüdiger (referee)
Present doctoral thesis contributed to understanding of mechanistic principles of two enzymes participating in the process of carcinogenesis; DNA polymerase  (pol ) and cytochromes P450 (CYP). Pol  is part of the DNA base-excision repair mechanism (BER). The primary role of pol  in, the BER mechanism, is inserting a new nucleotide into a DNA strand according to Watson-Crick base pairing rules. Pol  plays an important role in the process of carcinogenesis, approximately 30 % of human tumors express pol  mutants. The ability of pol  to discriminate between "right" and "wrong" nucleotide during the insertion process is called fidelity. We employed computational methods to elucidate molecular basis of the fidelity of pol . First, the relative free energy calculation method LRA was employed to compare differences in free energies between the "right" and "wrong" nucleotide during its insertion into DNA. The results indicated a better stabilization of transition-state of the nucleophilic substitution catalyzed by pol  in the case of the "right" versus "wrong" nucleotide. This difference resulted in an 80-fold contribution to its fidelity. Further, computational methods FEP and LIE were used to examine how mutations effect fidelity of pol . Results were than correlated with experimental data...
Metamorphic and structural record of the Gemer and Vepor Unit contact zone in the Central West Carpathians
Novotná, Nikol ; Jeřábek, Petr (advisor) ; Janák, Marian (referee)
The Central West Carpathians represents a crustal-scale thrust sheet stack formed by three major basement units, the Gemer, Vepor and Tatra. The basement of structurally middle Vepor Unit is dominated by Carboniferous granitoids while the upper Gemer Unit consists mainly of Lower Palaeozoic volcano-sedimentary complexes. Both units are overlain by Late Palaeozoic to Mesozoic cover sequences. During the Alpine orogenic event of Cretaceous age, the Vepor Unit was first buried during the northward overthrusting of the Gemer Unit and later exhumed during the eastward lateral escape of the Gemer. Alpine metamorphic conditions reached generally amphibolite facies conditions in the Vepor and greenschist facies conditions in the Gemer. In this work we concentrate on tectono-metamorphic record within the rock complexes incorporated into the imbricated structure of the Vepor-Gemer Contact Zone. The Vepor basement schists were affected by Variscan and Alpine regional metamorphism of medium grade. The age of metamorphism was confirmed by the Sm/Nd garnet dating (355±41 Ma - Variscan, 115±24 Ma -Alpine). The Variscan metamorphic assemblage of garnet-biotite-plagioclase is mainly preserved closer to the contact with leucogranite which crosscuts Variscan metamorphic fabric. The schists and leucogranite are...
Position of Saxonian granulite within the frame of European Variscides
Ramešová, Olga ; Jeřábek, Petr (advisor) ; Racek, Martin (referee)
The Saxonian Granulite Massif (the type granulite locality) is situated in the northwestern part of Bohemian Massif. It is an antiform with dome structure, which came to the surface from below SaxoThuringian Paleozoic units. It consits of high-pressure "Granulite core" with felsic and mafic granulites, which are surrounded by tectonic cover called "Schist mantle" of low-grade upper- crustal rocks. Massif is penetrated by several granite bodies. The Core and Mantle are separated by shear zone with a thickness of about 2 km. Geochronological dating of complex exhumation gives ages of about 340 Ma. The whole complex is affected by system of foliation and lineations. Massif was deeply buried, extremely heated and then exhumed with high exhumation rates during post collision extensional phase of the Variscan Orogeny.
Exhumation of mid-crustal rocks by a brittle-ductile unroofing mechanism, an example from the Veporic crystalline complex in the West Carpathians
Bukovská, Zita ; Jeřábek, Petr (advisor) ; Milovský, Rastislav (referee)
Study of the structural and metamorphic record of the eastern part of contact zone within Vepor and Gemer units in Central West Carpathians has interpreted the burial and exhumation in the evolution of alpine orogeny. The studied area is built by granitoid rocks of Vepor basement and metapelites of cover sequences both Vepor and Gemer units. Three structural fabrics have been identified in the area, which are correlated with so far described deformation stages. Higher metamorphosed rocks with presence of two generation garnets were found out within lower metamorphosed metapelites of cover sequences. From the garnet - biotite thermometry the metamorphic conditions for the rims were established to 550-580řC. Whereas muscovite and in some case chlorite, are the only metamorphic phases in neighbouring cover rocks. Three generations of white micas are documented within structural fabrics. The oldest muscovites, magmatic in origin (Ms1), younger phengites (Phg) present in fabrics S1 and youngest muscovites (Ms2) present in fabric S2. The study of quartz microstructures distinguished aggregates and from aggregates coming band microstructures. These are mostly found in deformed granitoids, sometimes also in cover quartzites and can have sigma-shape geometry. The aggregate microstructure, representing S1...

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1 JEŘÁBEK, Přemysl
4 Jeřábek, Pavel
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