Věra Mansfeldová: Time-resolved potentiometry on liquid-liquid interface (Dissertation thesis) Abstract The aim of this work is to explore the method of temporal resolution in potentiometry as a new prospective electrochemical analytical technique. In connection with interface of two immiscible electrolyte solutions (ITIES) it may find utilization in analytical chemistry. This technique up to my knowledge has not been published yet. Potential response of analyte on liquid/liquid interface includes both distribution processes, their temporal resolution and redox processes, which specificity can modified by changing the composition of individual phases. Unlike "classic" potentiometric techniques, limited just to potential determination, this method, which I have given the working name "time resolved potentiometry at liquid-liquid interface" utilizes time development of potential response, which was found to be an analyte-specific function. The time resolved potentiometry presented in this work includes time course of potential response to analytical parameters specific for particular analyte. It brings series of data characterizing the analyte in given environment in a similar manner as spectra and may allow creating analyte-specific data package - fingerprint. Combination with ITIES allows, unlike...

In March 2019 the 5th direct presidential elections were held in Slovakia. In the first round there were 13 candidates running for the office. The winner after the second round held on March 30th was Zuzana Čaputová. With 58,4 percent of all valid votes she became the first female president of The Slovak republic on June 15. This thesis goes into the comparison of Zuzana Čaputová's media image since being elected on the most visited news web sites in The Czech republic and Slovakia. The goal of the thesis is to compare the quantity and content of information published in both countries and to track possible changes in the media narrative and what has caused them. Using the quantitative method of content analysis and qualitative method of frame analysis of relevant articles published on news websites Novinky.cz and Aktuality.sk I want to monitor the decline, stagnation or rise of media interest in the persona of Zuzana Čaputová in the selected time period. This will help to describe the media image of the president on the Czech and Slovak media scene. The source articles are attached to the thesis.

Africa still has the lowest electrification rates in the world with over 600 million people estimated to be living without access to electricity. What makes the challenge even greater for Africa is that the continent is so sparsely populated that building grid infrastructure is not viable in many cases. However, “pay-as-you-go” solar home systems have provided the continent with the opportunity to correct its electrification deficit. These innovations are not new and many of the costs of operating these systems have reached grid parity when one considers the Levelized Cost of Energy Model. However, these projects still fail to meet institutional investors' bankability criteria. The aim of this study is to try and understand whether solar home systems provide the investor with an opportunity to make a larger risk-adjusted return versus existing grid-based power station projects being considered on the continent. This study uses Ghana's recently built Kpone power station as a case study to complete this analysis. The study also seeks to assess what viability criteria is employed by a broad base of investors if they were to consider funding off-grid power. The study makes use of the Net Present Value model to compare the returns for Kpone and Zola Electric's Infinity solar home system. The study also conducts inductive qualitative analysis to try and ascertain what criteria is assessed for project viability and then builds a conceptual framework for assessing future projects. The study found that Kpone provided a better risk-adjusted return to that of Zola Electric's solar home system, largely because of Kpone's project finance structure reducing the risk of the investment. Our findings also show that investment ticket size, company track record and management track record are among the most highly considered criteria for investments into off-grid companies.

The diploma thesis deals with the journalistic work of the theatre critic Josef Träger in the period of the so-called Third Republic (1945-1948). It describes the process of forming attitudes of the journalist towards post-war theatre, presents a representation of the dominant discourse and its transformation during the given period. This thesis focuses on the content analysis of theatre papers, conceived as a kind of "case study", it relates to the basic themes and problems of Czech post-war theatre. It is argued that this approach enables the analyst to pose questions concerning the ideological character of theatre criticism. This thesis discusses ideas of avant-garde creators and theorists, in whose public work it identifies the main source of inspiration for the revolutionary transformation of Czech theatre in 1945. It explores the influence of the Communist Party in the given period, targeted interventions in the Czech media and theatre system and manipulative practices leading to the strengthening of its power in the post-war state. The text also deals with the manifestations of the emerging socio-political disposition in theatre journalism, the form of the reception of post-war hegemonic formation by the journalist, and to structure the results of the analysis into a broader political-media...

The main goal of the thesis is to find out whether there is a connection between Instagram usage and a change in the perception of one's own body image, more specifically an increase in dissatisfaction with one's own physical appearance. The supporting goals are to map the individual factors arising from this dissatisfaction and to describe the solutions that Instagram users have adopted to achieve the dream appearance. Through qualitative research, specifically by analysing in-depth interviews with bloggers presenting extreme slenderness on social networks, the life stories of respondents are analysed in order to reveal how interest in body shape developed in the presence of social networks and new media. The interviews reveal the interest of Instagram users in watching and sharing photos presenting extreme slenderness and clarify their connection to eating disorders. Instead of triggering such diseases, Instagram manifests itself as a tool for maintaining and remaining in a new mental and physical condition. By publishing photographs showing a very thin body, women assure themselves of their own attractiveness, and thus also influence their self-presentation, which results in an equivalent relationship of satisfaction from slenderness and satisfaction from their self presentation.

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On screen we can find different types of leadership styles and film has a great potential to influence our view on leadership. In this essay we have analyzed how the filmmakers have portrayed different leaders and styles in movies. Northouse defines leadership as a process in which an individual influences a group to achieve a common goal. He highlights that it is possible to define three different main perspectives of the concept, focus on the group process, focus on behavior and focus on personality. We wanted to analyze how and to which extent the leader communicates with the subordinates and what type of leader this makes them. By looking at organizational communication in the films we can contribute to media and communications research. Our main question is “How is the leadership portrayed in three big award-winning movies from the 2000s?”. The purpose of this study is to analyze how formal leaders and their leadership are portrayed in modern American movies. Big American movies have a large audience and therefore have big potential to affect our view on leadership. That's why it's relevant to analyze how movies portray leaders in different situations. We have used a qualitative content analysis method in our essay. This is because we have been striving to achieve a comprehensive description of the studied area. We have also used a semiotic analysis for the studied area. We have analyzed how the leaders talk, what they say and how they behave. We have come to the conclusion that leadership can look very different. Based on previous research and our analysis of the movies we have also come to the conclusion that communication is a very important part of a functioning leadership and an organization. The choice of semiotic resources such as gestures, words and symbols can affect the leadership. A leader does not always have to have a specific style, it's possible to adapt different styles to different situations and people and you can also use a mix of different traits from different styles. We have also realized that it is possible to develop and change the leadership to what suits the organization and to what the followers are motivated by. A certain leadership style may not work in one organization but work in another.

The subject of this diploma thesis is media image of the Czech first ladies in the period 1993-2020. The office of the first lady is not official in the Czech Republic, so each lady determines for herself what she will do during the term of office. Czech media monitor the activities of the first ladies and, on the basis of their activities, assign certain roles to them. According to this information, which is presented to the audience, the public forms an opinion about the wives of the presidents. The aim of this thesis is to describe a media image of all Czech first ladies in the years 1993-2020. To obtain their media images, articles from the daily newspapers, from Lidové noviny and Blesk were chosen. To achieve these results, a qualitative content analysis was chosen and complemented by a quantitative content analysis. Due to insufficient resources in the field of research of the first Czech ladies, foreign literature was used in the theoretical part. The final part of this thesis contains answers to research questions, a comparison of differences in coverage of the first ladies in two different types of media and the resulting media images of all Czech first ladies.

This diploma thesis deals with the series Zrádci, which was presented by Czech Television by the turn of February and March 2020 and has not yet been processed in-depth in the academic environment. The general aim of the paper is to create a comprehensive picture of the series Zrádci, which is based on the responses from the Czech media, social networks, and further from creators, critics, or even the actors themselves. The main objective of the author is to undertake a qualitative analysis of the series. The partial aim is to find an answer to whether the series "Zrádci" is fundamentally different from other criminal serials, and to what degree this serial is more realistic than other audiovisual works with a similar theme.

Objetivo: Busca comprender el desarrollo de la identidad sexual homosexual en universitarios de Lima Metropolitana a partir de sus historias de vida. Método: Participaron 8 homosexuales entre 21 y 29 años seleccionados por bola de nieve, los cuales fueron 4 hombres y 4 mujeres. Asimismo, es un estudio cualitativo con diseño hermenéutico en el que se realizaron conversaciones sobre sus experiencias relacionadas a su sexualidad. El análisis de dichas conversaciones, se realizó mediante la propuesta metodológica de Gonzalez (2008) y se establecieron 4 ejes basados en la teoría de Troiden (1989) para explicar el desarrollo de la identidad homosexual. Resultados: Sensibilización: Los participantes, durante su infancia, se reconocieron como distintos a los demás; sin embargo, solo se dieron cuenta en la adolescencia al mirar al pasado. Confusión de identidad: Surgieron sentimientos negativos basados en la mirada de la sociedad a los homosexuales. Asunción de identidad: Es esta etapa comenzó la aceptación a raíz de la cercanía a personas LGBT. Compromiso: En todos los casos se logró la aceptación por parte de la familia. Conclusiones: El desarrollo de la identidad homosexual se ve influenciado por el entorno familiar y social. Asimismo, la revelación favorece sentimientos de bienestar y libertad. / Objective: To understand the development of homosexual sexual identity in university students from Metropolitan Lima from their life stories. Method: 8 homosexuals between 21 and 29 years old selected by snowball participated, which were 4 men and 4 women. Likewise, it is a qualitative study in which conversations were held about their experiences related to their sexuality. The analysis of these conversations was carried out through the methodological proposal of Gonzalez (2008) and 4 axes were established based on the theory of Troiden (1989) to explain the development of homosexual identity. Results: Awareness: The participants, during their childhood, recognized themselves as different from the others; however, they only became aware in adolescence by looking back. Identity confusion: Negative feelings arose based on society's view of homosexuals. Assumption of identity: In this stage, acceptance began as a result of closeness to LGBT people. Commitment: In all cases, acceptance by the family was achieved. Conclusions: The development of homosexual identity is influenced by the family and social environment. Likewise, disclosure encourages feelings of well-being and freedom. / Tesis