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22 Uppsatser om Newman-Penrose formalism - Sida 1 av 2
Hawkingmassa i Kerr-rumtid
In this thesis we calculate the Hawking mass numerically for surfaces in Kerr spacetime. The Hawking mass is a useful tool for proving the Penrose inequality and the result does not contradict the inequality. It also does not contradict the assumption that the Hawking mass should be monotonic for surfaces in Kerr spacetime. The Hawking mass is quasi-local and defined by the spin coefficents of Newman and Penrose, so first we give a discussion about quasi-local quantities and then a short description of the Newman-Penrose formalism..
Asymptotiska egenskaper för Lanczosspinoren
Asymptotically flat spaces are widely studied because it is one natural way of describing an isolated system in general relativity. In this thesis we study what happens to the Lanczos potential at spacelike infinity in such spacetimes. By transformations of the Weyl-Lanczos equation, we derive expressions for the limiting equations on both the timelike unit hyperboloid, and the timelike unit cylinder. Finally the Newman-Penrose formalism is used to get a component version of the equations..
Lanczos potentialer i kosmologiska rumtider
We derive the equation linking the Weyl tensor with its Lanczos potential, called the Weyl-Lanczos equation, in 1+3 covariant formalism for perfect fluid Bianchi type I spacetime and find an explicit expression for a Lanczos potential of the Weyl tensor in these spacetimes. To achieve this, we first need to derive the covariant decomposition of the Lanczos potential in this formalism. We also study an example by Novello and Velloso and derive their Lanczos potential in shear-free, irrotational perfect fluid spacetimes from a particular ansatz in 1+3 covariant formalism. The existence of the Lanczos potential is in some ways analogous to the vector potential in electromagnetic theory. Therefore, we also derive the electromagnetic potential equation in 1+3 covariant formalism for a general spacetime.
Den eviga debatten? : om naturalism eller formalism som förhållningssätt inom svensk landskapsarkitektur
In this essay, I explore the history of the ideas that have shaped the profession of landscape architecture, in a Swedish context. To this purpose, I have sampled the professional debate on landscape architecture at four points in time. These are the years around 1890, 1930, 1970 and 2010.
Drawing on G N Brandt (1920), I make the distinction between two arguably crucial approaches, i . e., naturalism and formalism. By identifying these perspectives, and by dividing the arguments of each time period according to this classification, I am able to compare the course of the debate over time.
I take on the task through hermeneutics.
Abstrakt konst idag : En studie av Ann Edholm och Jacob Dahlgrens förhållande till modernismen
This paper presents an approach in contemporary, abstract art for a new way of experiencing modernist abstraction. This has not been possible until now, about 40 years after the postmodern turn against modernism in art, and the closely connected formalism. This new approach is represented in this paper by the Swedish contemporary artists Ann Edholm and Jacob Dahlgren. Modernist artists such as Kasimir Malevich and Piet Mondrian receives a new relevance to contemporary abstract art. This opens up for a new, more complex and more dialectical understanding and re-evaluation of modernism and its abstract art.This is shown by a historical and chronological investigation which highlights modernist abstract art, formalism, and the critical and post-modern Neo-geometric ?abstraction? of the eighties.
Kvinnors rätt till land : jämställdhet, formalisering och fördelning
The differences between the sexes when it comes to land and property ownership are enormous. This paper deals with issues concerning women's land and property rights. The aim of the study is to investigate what general factors are effecting women's access to and control of land. In addition, this paper aims to explore the effects of liberal formalism in relation to gender equality and the distribution of land. Formalism and formalization of women's land rights alone won't lead to equality in land distribution or women's emancipation.
Post-Columbine - en kvalitativ studie av sju skolskjutningar
The study has got three aims. The first purpose is to implement the Newman et al.s rampage theory (2004) in a more dominant European context. In this way, the theory?s strengths and weaknesses can be exposed. The second objective is to look at the motive.
Happiness not Included : En kvalitativ undersökning av myter om lycka i svenska reklamfilmer
?If we consume the product as a product, we consume its meaning through advertising? ? Jean BaudrillardSyftet med denna studie är att identifiera och analysera bakomliggande myter om lycka i kommersiella reklamfilmer, utifrån ett konstruktionistiskt perspektiv. Analysmodellen, som bygger på semiotik och neoformalism, genererade kunskap om de olika berättarstrukturerna kring lycka i de undersökta reklamfilmerna. Resultaten indikerade framförallt att berättarstrukturerna om lycka grundar sig i myter som är starkt kopplade till den kapitalistiska ideologin. Studien avser därmed att blottlägga och analysera myter om lycka i reklamfilmer ur ett kritiskt konstruktionistiskt perspektiv..
Från luddig verklighet till strikt formalism : Utveckling av en metod för den semantiska webben
Internet is the world?s largest source of information, and it is expanding every day. It is possible to find all kind of information as long as you know how and where to look for it, but still it is only the words itself that are searched for. We have with this essay tried to find an approach that makes it possible to give the word a meaning or a context.We have, as a starting point used the Socrates method, which is a method that breaks down texts into its smallest elements and forms activities. We have redone these activities to ontologies by forming general and specific descriptions of the activities.
Axe Anarchy - En avvikelse från det vanliga : En studie av hur Axe:s varumärkesutvidgning kan påverka Axe:s varumärkesvärde
The concept of brand equity emerged inthe eightiesto justify the long term value of marketing investments. Brand equity signify the value that a brand adds to a product and is the result of the marketing of a brand. One of the most widely used strategies to enhance brand equity is to do a brand extension, which means that a firm uses an established brand to introduce a new product to the market. At worst, a failed brand extension can damage the brand equity, which Vinjamuri (2008) claims that the brand Axe is currently in danger of doing. This January Axe launched an extention including products for both men and women for the first time and Vinjamuri claims that this can disappoint Axe´s former target group (men between 14 and 27 years old) (Newman, 2012). In this thesis Axe´s brand equity among the extensions target group (men and women, age 14 to 27) in Sweden is studied to find out if the brand extension is likely to affect the brand equity in the target group.
Skolsköterskans arbete utifrån ett salutogent förhållningssätt : en litteraturstudie
The objective of this literature study was to describe how the school nurse can adopt the salutogenic perspective in her health promoting work. The articles were examined in order to identify what was written about the school nurse?s work from the salutogenic perspective. In parallel, Eriksson?s, Orem?s, and Newman?s nursing theories were examined from the same perspective.
Det meningsfulla svenskämnet
AbstractThe purpose with this paper is to describe focus in the school subject swedish through a historic perspective. The purpose is also to intestigate how a group of pupils in the last grade in upper (senior) level of compulsory school and teachers with the subject swedish thinks about the subject, what is the most meaningful to pupils in the last grade in upper level of compulsory school.The history of the Swedish school system from the 15 th century till today and the entrance of Swedich as a subject in school has been studied by literature and curriculum. With help from Mr Lars-Göran Malmgrens analysis of different swedish subjects the curriculums analyses to see which subject who appear.Pupils from the last grade in upper level of compulsory school and their teachers in the the subject swedish have answered questions in two different questionnaires regarding what is most meaningful with the subject. The result are to be present in this paper as diagram and also in ordinary text.The conclusion is that the subject swedish has changed from functionalism to formalism and then turned to a more literary education and finally towards functionalism again. The results from the questionnaire papers show that the pupils put most value in learning different skills while the teachers see the importance of both skills and developing the personality..
Det sublima : konst och religion
Det sublima är en överväldigande estetisk upplevelse av det ofattbart stora, som hotar att krossa jaget och får det att framstå som försvinnande litet. Det beskrivs som en känsla mellan lust och skräck.Exempel på fenomen som ofta fått symbolisera det sublima är hotfulla berg och tornande åskmoln.Begreppet har genom historien främst blivit aktuellt i tider av stor förändring, samhällelig och religiös omstörtning; tider då människor söker trygghet i en upplevelse av något större än jaget, utanför den institutionella religionen.Begreppet härstammar från antika teorier om retorik och hade sin moderna storhetstid under 17- och 1800-talet, då det kom att bli en viktig kategori inom klassisk estetik. Det tydligaste exemplet påkonstnärer som förknippas med begreppet är Caspar David Friedrich, mer samtida exempel inkluderar Barnett Newman.Jag kom först i kontakt med begreppet hösten 2009, under en föreläsning med Tom Sandqvist. Begreppet beskrevs som ett estetiskt begrepp för att beskriva skräck och upplevelser av detstorslagna och allomfattande i konst. Jag hade aldrig hört om något liknande och blev helt tagen: de här upplevelserna var ju precis det konsten handlade om! För mig handlade insikten om två saker: dels ett begrepp för att beskriva något annat än fulhet och skönhet i konst.
Svenska - ett kommunikationsämne? Kommunikationens förskjutning i ämnesplanen för svenska i Gy11 : En Foucaultinspirerad diskursanalys av ämnesplanen i svenska Gy11
SammanfattningInom forskning talas det om att socialarbetare och biståndshandläggare i storstadskommuner har en hög arbetsbelastning med mycket arbetsuppgifter. Det nämns ingenting om hur arbetsbelastningen är bland socialarbetare och biståndshandläggare i mindre kommuner. Syftet med denna studie var att undersöka hur biståndshandläggare i en svensk glesbygdskommun upplever sin arbetsbelastning samt vilka konsekvenser de upplever att arbetsbelastningen kan ge i klientbemötandet. Detta för att exemplifiera hur biståndshandläggare i glesbygdskommuner kan uppleva sin arbetsbelastning. Studien utgår från fem kvalitativa intervjuer där biståndshandläggarnas egna upplevelser av sin arbetsbelastning är i fokus.
"Det finns en ram, men inom ramen är det ganska fritt" : En kvalitativ studie om genrepedagogik
The purpose with my essay was to investigate how genre pedagogy works in a practical manor? I wanted to reach a deeper understanding for the genre pedagogy and to find out if it fits all students. To investigate this issue I have asked following questions:What is genre pedagogy?How do teachers work with different genres in the genre pedagogy?For whom is the genre pedagogy?Is the critic right that Frøydis Hertzberg is proposing about the genre pedagogy formalism? I have been using qualitative methods, to gather my empirical data. I have been using two unstructured interviews and one unsystematically observation, in a third grade class in a school south of Stockholm, with 30% second language students.