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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Nitrogen Reduction Reaction: Deposition, Characterization and Selectivity of Transition Metal (V, Co and Ti) Oxynitrides as ElectrocatalystsChukwunenye, Precious O. 12 1900 (has links)
The electrocatalytic nitrogen reduction reaction (NRR) is of considerable interest due to its potential for less energy intensive and environmentally friendly ammonia production which is critical for agricultural and clean energy applications. However, the selectivity of NRR compared to the hydrogen evolution reaction (HER) often poses challenges for various catalysts, including Earth-abundant transition metal oxynitrides like Ti, V, and Co. In this work, a comparative analysis of the selectivity of these three metal oxynitrides was conducted, each having different metal oxophilicities. A combination of electrochemical, surface characterizations and density functional theory (DFT) calculations were employed to directly assess NRR and HER activities under the same reaction conditions. Results show that cobalt oxynitrides exhibit NRR activity at pH 10, involving the electrochemical reduction of both lattice-bound nitrogen and dissolved N2, although more HER activity was observed. In contrast, vanadium oxynitride films displayed HER inactivity at pH 7 and 10 but demonstrated NRR activity at pH 7, while titanium oxynitrides were active at pH 3.2 but inactive under neutral and basic pH conditions. These comprehensive studies highlight substantial variations in HER and NRR selectivity based on transition metal oxophilicity/azaphilicity, indicating distinct mechanisms governing NRR and HER mechanisms.
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The Living Messiah of Brooklyn : Dealing with the theological postmortem legacy of the Chabad movement’s last Rebbe and final messianic redeemer. / Den levande Messias från Brooklyn : Om det teologiska arvet av Chabadrörelsens sista ledare, Rebben, som fortfarande uppfattas som världens sista messianistiska frälsareSonnenschein, Hannes January 2016 (has links)
The Chassidic Chabad movement is one of Judaism’s most successful and influential groups interms of missionary presence around the world and distributed missionary material online.Chabad’s final Rebbe is still regarded by his followers to be the long-awaited final redeemerand Messiah, despite his clinical death in 1994. The aim of this study is to describe how theChabad-followers, through the movement’s publications, maintain the belief in the Rebbe asthe Jewish Messiah, and the theological interpretive tools utilized in order to ‘survive’ as aunited movement. The study indicates that Chabad is still a united and radical messianicmovement, wherein, internal theological mechanisms interpret the Rebbe as corporally alivebut concealed by illusion, and will soon be revealed or imminently resurrected to complete theredemption of the world. The study also discusses the movement’s extreme right-wingedpolitical stance in regards to the ongoing Israel-Palestine conflict, the movement’s Holocausttheology as means to further understand how the group ‘survived’ the cognitive dissonance thedeath of the Rebbe created and the theological similarities between Chabad and earlyChristianity. / Den Chassidiska Chabadrörelsen är en av judendomens mest framgångsrika och inflytesrikanya religiösa rörelser när det gäller missionär närvaro runt om i världen och missionärt materialonline. Chabads sista Rebbe anses av hans anhängare att vara världens sista försonare ochMessias, trots hans uppenbara kliniska död år 1994. Denna studie beskriver hurChabadanhängare, genom rörelsens egna tryckta och online publikationer, upprätthåller tron påRebbe som den judiska messias och de teologiska tolkningsverktyg som rörelsen använder föratt ‘överleva’ som en enad grupp. Studien indikerar att Chabadrörelsen, ändå till våra dagar, ärenad och radikal-messianistisk där man genom interna teologiska mekanismer tolkar Rebbensom levande i materiell kropp, gömd genom illusion men snart uppenbarad eller snartåteruppväckt från de fysiskt döda och i båda fallen för att fullgöra världens försoning där Gudförsonar människan i den materiella världen. Studien diskuterar också rörelsens extremahögerpolitik, i synnerhet när det gäller Israel-Palestina konflikten och förintelseteologi som ettsätt att vidare förstå hur gruppen ‘överlevde’ den kognitiva dissonansen Rebbens död skapadei termer av misslyckad profetia och de teologiska likheterna mellan Chabadrörelsen och tidigkristendom.Nyckelord: NRR,
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De skriver sekt - vad menar de egentligen? : en religionssociologisk studie av användningen av sektbegreppet i den efterföljande mediedebatten efter dokumentären ”De utvalda barnen”.Helmersson, Camilla January 2022 (has links)
In the beginning of 2021 the documentary “The selected children” was aired in one of the public Swedish television channels. In the film we follow the filmmaker as he returns to his elementary school that he left almost three decades ago. His memories where positive but the film depicts abuse with a focus on the leadership and a rope swing . The ensuing media debate was influenced by the fact that the school was, and still are, a waldorf school (Steiner school) and the cult concept was frequently used. This bachelor thesis aimed to find the underlying reasons for the media usage of the cult concept in this context and further how and why a description of a school in the past became a novelty in the present. The perspective is religion sociology and medialization. The purpose is to understand how and why the cult concept is used in nationwide written news media, narrowed down to 11 articles published in Aftonbladet, Dagens ETC, DN, Expressen, GP, SvD och SVT nyheter during May and June 2021. I used a qualitative content analysis method combined with an abductive reasoning. The theory used was in the field of cults, NRM and medialization with an emphasis on media logic also described as media modus operandi. The result shows that the cult concept is used to describe and frame the extreme characteristics of the school. There is a connection between the school and other waldorf schools both in the description of the schools as cults related to abuse and abnormality but the main reason is the foundation in relation to the waldorf pedagogy and anthroposophy. The media uses a very narrow number of sources describing the school, waldorf schools and the anthroposophic movement. The descriptions are made in the present as if the film was depicting the present school as well. As such the sources alongside the framing language constructs the news value in line with the media logic. In conclusion I argue that the findings show that media uses the cult as a description aswell as a news story in line with the theory, describing how the news are storytellers as they have developed into the entertainment industry.
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