National Repository of Grey Literature 15 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Characterisation of proteins whose degradation is necessary for normal course of embryonic genome activation in mammals
Svobodová, Nika ; Toralová, Tereza (advisor) ; Krejčová, Tereza (referee)
Early embryonic development is controlled by maternal mRNAs and proteins synthesized during oogenesis. A key period for preimplantation development is the transition from maternal control of development to embryonic control. This process, known as maternal-to-zygotic transition (MZT), requires the coordinated degradation of accumulated maternal mRNAs and proteins and subsequent embryonic genome activation (EGA). Maternal mRNAs are gradually removed from the embryo, but the degradation of maternal proteins is not well understood yet. In mammals, only a few proteins are known whose degradation is necessary for normal course of EGA. The activation of the embryonic genome is closely related to the reorganization of chromatin structure. The initiation of gene expression requires the loosening of chromatin at the gene region and the presence of appropriate transcription factors. Maternal proteins that need to be degraded for the normal course of EGA are involved in regulating chromatin structure and the translocation of necessary factors. This thesis aims to characterize selected proteins (PIASy, CBX5, TAB1 and H1FOO) and describe the role they play during the transition from maternal to embryonic control of development. While PIASy, CBX5, and H1FOO need to be degraded to loosen the chromatin structure...
Marketing Strategy of the Selected Company
Šperlík, Max ; Krejčová, Tereza (referee) ; Chlebovský, Vít (advisor)
This master thesis is focused on increasing the competitiveness of the company “Pizzerie U Kalichu” by creating new marketing strategy. The work is divided into three main parts. The first part describes the theoretical knowledge associated with this topic. Second part is focused on the analysis of the current situation in the company. From these facts and dates we found out is created the third part, which is focused on the suggestion for improvement a marketing strategy. These improvements should lead to gain new customers, increase a profit for the company and increase a competitiveness of the company on the market.
Communication Strategy Proposal for the Ski Resort Šacberk
Krejčová, Tereza ; Kramláčková, Agáta (referee) ; Konečná, Zdeňka (advisor)
The aim of this thesis is to propose the communication mix for Šacberk Ski Resort. The objective of this thesis is the improvement of communication with customers and promotion of the company. Advertising campaign should make all the advantages of the company more visible. Diploma thesis evaluates current situation of the mix and proposes improvements and expansion of the advertising campaign to other regions of the Czech Republic. The new communication mix should lead to improving the current situation, gaining new customers and keeping current customers.
Concept for Effective Team Communication and Motivational System in a Selected Company
Krejčová, Tereza ; Marešová, Iva (referee) ; Konečná, Zdeňka (advisor)
Bachelor thesis is focused on motivation and communication of-A hockey team HC Dukla Jihlava. It analyzes the operation of the team and tries to find solutions for better, faster and easier communication. It evaluates the current situation and proposes a mor effective system of motivation so the team can better realize company objectives.
Approaches to pupils in need of support at primary school during the COVID-19 pandemic
KREJČOVÁ, Tereza
The bachelor's thesis deals with approaches to pupils in need of support at the first level of primary school during distance learning from March 2020 to March 2021. The theoretical part focuses on the topic of socialization, further describes individual approaches to education, obstacles to social inclusion, support options, inclusion in abroad, distance education and relevant legislation. In the practical part, the basic research problem, research methods, research questions and the goal of the investigation are presented. In the conclusion, the data analysis, summary of the investigation and discussion are detailed.
The mechanism of impaired formation of head-tail coupling apparatus in centrobin deficient acephalic spermatozoa
Vlčková, Monika ; Frolíková, Michaela (advisor) ; Krejčová, Tereza (referee)
Acephalic sperm syndrome (ASS) is a rare form of teratozoospermia that is probably genetic in origin. The sperm of individuals with this syndrome have a damaged apparatus connecting the head and flagellum (HTCA), which leads to the formation of acephalic sperm, i.e. sperm with separate heads from flagella. Individuals affected by ASS are almost exclusively infertile. One of the proteins whose mutation causes ASS is SUN5. Together with KASH proteins, SUN proteins are part of the so-called LINC complex, which ensures the connection of the nucleoskeleton with the cytoskeleton. Centrobin is a protein involved in centriole duplication and assembly of the dividing spindle. Rats carrying a defective gene for centrobin have reduced fertility and exhibit an ASS phenotype. For that reason, this model organism was used in this work to study the possible interrelationships of proteins involved in the formation of ASS. Given the similar phenotype of centrobin and SUN5 mutated spermatozoa, there is a possibility that centrobin interacts with one of the LINC complex proteins and together they participate in the formation of the head-flagella junction. Sperm from rats with a defective centrobin gene also show significant damage to the flagella. Decreased Odf1 protein expression has previously been reported in ASS...
Glycoprotein profile of human ejaculate as a marker of its quality
Pavlová, Hana ; Postlerová, Pavla (advisor) ; Krejčová, Tereza (referee)
Glycoproteins are an indispensable component of the sperm glycocalyx. They arise through the process of co-translational or post-translational modification, so-called glycosylation, during which carbohydrate chains are attached to a peptide chain. Glycoproteins are involved in reproductive processes and their presence is often key to successful fertilization. The degree of glycosylation of glycoproteins is highly variable and is determined by the representation of carbohydrate units in glycans. It has already been found that the degree of glycosylation can be related to the fertility of an individual. The diploma thesis is focused on the comparison of the representation of terminal saccharides, sialic acid and fucose, in the glycoproteins of sperm and seminal plasma of patients with normal and abnormal ejaculate parameters. The total rate of sialylation and fucosylation in the seminal plasma was determined, as well as the rate of sialylation and fucosylation of specifically detected glycoproteins of sperm and seminal plasma. A significant difference was noted only in the detection of total fucosylation of seminal plasma glycoproteins. However, subsequent correlation tests revealed important relationship between the degree of sialylation and fucosylation of glycoproteins and ejaculate parameters,...
Expression and localization of alpha V and alpha 3 integrins in male germ cells of selected mammalian species
Bajerová, Kateřina ; Frolíková, Michaela (advisor) ; Krejčová, Tereza (referee)
Integrins are transmembrane glycoproteins mediating cell-cell adhesion and ensuring communication between extracellular matrix and cell cytoskeleton. The presence of integrin subunits has already been described on somatic cells, as well as on oocytes and sperm cells. In oocyte plasma membrane, integrins together with tetraspanins are involved in the formation of vast molecular webs. Analogical structures have been recently discovered in sperm plasma membrane as well. While the role of integrins on oocyte has been researched quite extensively, there is much less known about its presence and function on sperm. This Master's thesis focuses on expression and localization of integrins alpha V and alpha 3 on acrosome-intact sperm and its comparison between mouse, pig and human sperm cells. Furthermore, this thesis also describes relocation of the alpha V integrin after the acrosome reaction, which is an essential step of sperm maturation. Using confocal microscopy, the alpha V integrin localization was detected in acrosomal cap area of acrosome-intact sperm of all selected species. After acrosome reaction, the alpha V integrin relocated and was depicted in postacrosomal region and equatorial segment of acrosome-reacted sperm. Immunodetection revealed a decreasing expression of the alpha V integrin in...
Marketing Strategy of the Selected Company
Šperlík, Max ; Krejčová, Tereza (referee) ; Chlebovský, Vít (advisor)
This master thesis is focused on increasing the competitiveness of the company “Pizzerie U Kalichu” by creating new marketing strategy. The work is divided into three main parts. The first part describes the theoretical knowledge associated with this topic. Second part is focused on the analysis of the current situation in the company. From these facts and dates we found out is created the third part, which is focused on the suggestion for improvement a marketing strategy. These improvements should lead to gain new customers, increase a profit for the company and increase a competitiveness of the company on the market.

National Repository of Grey Literature : 15 records found   1 - 10next  jump to record:
See also: similar author names
8 KREJČOVÁ, Tereza
2 Krejčová, Tatjana
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