Browsing Kvalifikační práce by Issue Date
Now showing items 1-20 of 18573
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Antropogenní hybridizace mezi vybranými pěstovanými a volně rostoucími zástupci z rodu Malus (Rosaceae)
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 7. 2. 2023Hybridizace je důležitým hybatelem v evoluci rostlin, zároveň však může představovat hrozbu pro genetickou integritu druhů. Specifickým případem je genový tok indukovaný lidskou činností neboli antropogenní hybridizace, ... -
Vybrané materiály pro výuku chemie v nižších ročnících na osmiletém gymnáziu
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 6. 6. 2023The incoherence of the Czech school system, which is based on the existence of three different types of grammar schools, results in a time inconsistency in the teaching of some subjects. Today, pupils at eight-year grammar ... -
Faktory ovlivňující druhovou bohatost ektomykorhizních hub na velkých prostorových škálách
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 29. 5. 2023Ectomycorrhizal (EcM) fungi form mutualistic relationships with some woody gymnosperms and angiosperms that play an important role in the functioning of most terrestrial ecosystems. Using enzymes capable of sequestering ... -
Vývoj proglaciálních jezer v Jihopatagonském ledovcovém poli
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 30. 5. 2023Today, as our planet warms, the dangers posed by proglacial lakes are becoming increasingly apparent. Often, due to faster glacial retreat, these lakes are enlarged and the risk of lake dam failure is consequently increased. ... -
Věkově-specifická analýza incidence a úmrtnosti na leukemii
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 1. 6. 2023The purpose of this bachelor's thesis is to analyze the trends in incidence and mortality from leukemia in Czechia with special focus on the trends by gender and age. The analysis of the incidence of leukemia was conducted ... -
Anatomické a fyziologické adaptace vysokohorských rostlin Ladaku
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 30. 5. 2023The Ladakh region of the northwestern Indian Himalaya is a high-elevation desert that presents a suite of environmental conditions that constrain plant growth. At lower elevations, aridity and high temperatures constrain ... -
Mikrojádra a jejich spojitost s vrozenou vnitrobuněčnou imunitou a virovou infekcí
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 26. 5. 2023Micronuclei are tiny structures that contain nuclear DNA and a membrane derived from the nucleus. They emerge in cells that have been exposed to severe stress factors, such as viral infections, radiation, or genotoxic ... -
Vývoj koncentrací vybraných živin a pesticidů v řece Sázavce a jejich změny ve vazbě na srážko-odtokový režim
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 31. 5. 2023This bachelor thesis aims to study the selected parameters and nutrients of water quality in relation to the rainfall-runoff regime in the Sázavka River basin. The rainfall-runoff regime is influenced by many factors, ... -
Regenerace a fyzický stav bytových domů na pražských sídlištích
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 1. 6. 2023Housing estates are an essential part of postsocialist cities, including Prague. Since the collapse of the socialist regime, their future has been a subject of discussion. First opinions about them degrading severely didn't ... -
Meziskupinové hrozby na facebookové stránce Tomio Okamura - SPD: příklad ukrajinské uprchlické vlny
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 2. 6. 2023The aim of the thesis is to identify the use of intergroup threats on the Facebook page of Tomio Okamura - SPD. The work is framed by the theory of intergroup threat. Its central concept - the intergroup threat - was ... -
Separatistické hnutí v Republice Sacha
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 1. 6. 2023The growing importance of research on separatism in Russia is currently connected with the significantly changed geopolitical position of the state and the upheavals that the war in Ukraine can cause. This thesis is based ... -
Porovnání různých skenů tandemové hmotnostní detekce v analýze kanabidiolu
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 7. 6. 2023The aim of this bachelor thesis was to compare different tandem mass spectrometer scans in order to develop an LC-MS/MS method suitable for the determination of cannabidiol in rat serum. In this bachelor thesis the mass ... -
Vliv pesticidů na populace ptáků zemědělské krajiny
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 5. 6. 2023Pesticides are problematic chemicals that are found in a variety of environments. These substances tend to accumulate in living organisms, where they decomposite very slowly and can have a negative impact on bird populations. ... -
Studium vlivu analogů hemu na strukturně-funkční charakteristiku modelového zástupce hemových senzorových proteinů
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 7. 6. 2023Heme sensor proteins allow bacteria to react to changes of concentration of certain molecules in their environment. This reaction depends on the coordination of the ligand to the heme iron atom. Model representative of ... -
Modifikace vnitřního povrchu kapilár pro elektroforetické separace liposomů
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 7. 6. 2023Electroosmotic flow is one of the main factors that affect the resolution of separations in capillary electrophoresis and its modification is often necessary. One way of modification of the electroosmotic flow is the use ... -
Evoluce rodu Malus se zvláštním přihlédnutím k ochraně starých odrůd jabloní
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 5. 6. 2023The following work deals with the genus Malus in terms of the significant diversity that this genus represents. It summarizes a basic knowledge about the taxonomic position and world centers of the genus evolution. Part ... -
Analýza složení pozůstatků anorganických farmak z 18. století
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 7. 6. 2023In this bachelor thesis, sixteen samples of inorganic pharmaceuticals from the 18th century were analyzed by inductively coupled plasma mass spectrometry, atomic absorption spectrometry, atomic emission spectrometry, UV/VIS ... -
Fylogeografické vzorce a mikroevoluční mechanismy u delfínovitých
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 30. 5. 2023This bachelor thesis discusses the current findings regarding the phylogeography of the Delphinidae family. It is mainly focused on phylogenetic structure and speciation of Delphinidae, as well as on the ways of differentiation ... -
Experimentální modely zvýšené fyzické aktivity pro kardiovaskulární výzkum
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 26. 5. 2023This thesis provides a critical review of experimental models and protocols of increased physical activity that have been used for various purposes in cardiovascular research in small laboratory rodents. The thesis describes ... -
Posttranskripční úpravy mRNA molekul u virů čeledi Poxviridae
Defence status: DEFENDED(Univerzita Karlova, Přírodovědecká fakulta, 2023)Date of defense: 25. 5. 2023Post-transcriptional modifications of mRNA molecules in viruses belonging to the Poxviridae family, including the vaccinia virus, play a key role in regulating viral gene expression and also influence virus-host cell ...