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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the 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.
31

Bad Death at Sandby borg : A Bioarchaeological Analysis of Intergroup Violence and Postmortem Agency of Unburied Corpses

Alfsdotter, Clara January 2018 (has links)
The subject of corpses from mass violence is surprisingly unexplored, even though the materiality of the corpse carries strong symbolic capital in conflicts. The aim of my PhD research is to create new knowledge about the implications of unburied corpses that stem from intergroup conflicts, and subsequently to add knowledge concerning how intergroup violence is organised to achieve desired social agendas. In the licentiate thesis presented here, I research the conditions for postmortem agency and how treatment of corpses can be studied in prehistory, specifically through the material remains of unburied corpses from the Sandby borg massacre. The Sandby borg case study is explored through a bioarchaeological perspective. Inside the Iron Age ringfort, the remains of at least 26 individuals have been recovered hitherto. Several of the dead display traces of lethal intergroup violence. By integrating osteology, archaeology, taphonomy and social theories, I show how bioarchaeological research can contribute to the understanding of past postmortem agency in relation to intergroup violence as a social process. The thesis is comprised of four articles.
32

Medikaliseringen av den svenska omskärelsedebatten : en religionssociologisk studie om förskjutningen av ”den religiösa andre.”

Amanda, Palacios January 2020 (has links)
The question regarding male circumcision in Sweden became a relevant topic within the public debates during the last three years. Due to the Swedish political party, Centerpartiet’s decision to strive for a ban on male circumcision, this debate surfaced after the 28th of September. Participation in the public debate came from different directions and perspectives on male circumcision. In this thesis I focus on different actors and their public opinions in debate articles published between the years of 2018-2019. The aim of this thesis is to examine how critical arguments are constructed from perceptions of a decreasing significance of religion within late modern societies. This results in a motivation to ban the performance of male circumcision without medical indication. By using the qualitative text analysis of systematic text condensation this thesis closer categorizes the arguments into the three themes of “children’s bodily integrity”, “the delimitation of medicalization” and “the religious other”. In addition to this, the thesis also looks into the argument from the analytical framework on argumentation analysis in order to distinguish “normative” and “factual” arguments in the debate. To look closer at the constructions of the critical arguments within the debate this thesis uses the theoretical framework of Sara Ahmed (2011). From a phenomenological inspired perspective this thesis further looks into the argument’s correlation and construction of a collective body. This in particular is the construction of the secular- in relation to the religious body. Constructions of the religious body allows for secular ideas to circulate around national symbols and principles, which results in an exclusion of religious motives and perspectives. The thesis further sheds light on the cultural imbedded “medical gaze”, from the theoretical perspective on medicalization of Karin Johannisson (2013). This thesis aims to examine the reproduction of the medical superiority within debates on questions regarding the human body, like the one on male circumcision. The thesis illustrates the complexity of religious visibility within the Swedish context. Although the critical arguments reject the religious motives of male circumcision, the debate increases the religious visibility in the public debates.
33

Trajectory Optimisation of a Spacecraft Swarm Maximising Gravitational Signal / Banoptimering av en Rymdfarkostsvärm för att Maximera Gravitationsignalen

Maråk, Rasmus January 2023 (has links)
Proper modelling of the gravitational fields of irregularly shaped asteroids and comets is an essential yet challenging part of any spacecraft visit and flyby to these bodies. Accurate density representations provide crucial information for proximity missions, which rely heavily on it to design safe and efficient trajectories. This work explores using a spacecraft swarm to maximise the measured gravitational signal in a hypothetical mission around the comet 67P/Churyumov-Gerasimenko. Spacecraft trajectories are simultaneously computed and evaluated using a high-order numerical integrator and an evolutionary optimisation method to maximise overall signal return. The propagation is based on an open-source polyhedral gravity model using a detailed mesh of 67P/C-G and considers the comet’s sidereal rotation. We compare performance on various mission scenarios using one and four spacecraft. The results show that the swarm achieved an expected increase in coverage over a single spacecraft when considering a fixed mission duration. However, optimising for a single spacecraft results in a more effective trajectory. The impact of dimensionality is further studied by introducing an iterative local search strategy, resulting in a generally improved robustness for finding efficient solutions. Overall, this work serves as a testbed for designing a set of trajectories in particularly complex gravitational environments, balancing measured signals and risks in a swarm scenario. / En korrekt modellering av de gravitationsfält som uppstår runt irreguljärt formade asteroider och kometer är en avgörande och utmanande del för alla uppdrag till likartade himlakroppar. Exakta densitetsrepresentationer tillhandahåller viktig information för att säkerställa säkra och effektiva rutter för särsilt närgående rymdfarkoster. I denna studie utforskar vi användningen av en svärm av rymdfarkoster för att maximera den uppmätta gravitationssignalen i ett hypotetisk uppdrag runt kometen 67P/Churyumov-Gerasimenko. Rymdfarkosternas banor beräknas och utvärderas i parallella scheman med hjälp av en högre ordningens numerisk integration och en evolutionär optimeringsmetod i syfte att maximera den totala uppmätta signalen. Beräkningarna baseras på en öppen källkod för en polyhedral gravitationsmodell som använder ett detaljerat rutnät av triangulära polygoner för att representera 67P/C-G och beaktar kometens egna rotation. Vi jämför sedan prestanden för olika uppdragscenarier med en respektive fyra rymdfarkoster. Resultaten visar att svärmen uppnådde en förväntad ökning i täckning jämfört med en enskild rymdfarkost under en fast uppdragsvaraktighet. Dock resulterar optimering för en enskild rymdfarkost i en mer effektiv bana. Påverkan av dimensionshöjningen hos oberoende variabler studeras vidare genom att introducera en iterativ lokal sökstrategi, vilket resulterar i en generellt förbättrad robusthet samt effektivare lösningar. Sammantaget fungerar detta arbete som en testbädd för att studera och utforma rymdfarkosters banor i särskilt komplexa gravitationsmiljöer, samt för att balansera uppmätta signaler och risker i ett svärmscenario.
34

Kvinnans bestraffning: Blodets symbolik i skräckfilm : En studie i voyeuristiska bilder i skräckfilm / The Punishment of the Woman: The Symbolism of Blood in Horror Movies

Nordlund Johansson, Maja, Skepi, Isabel January 2024 (has links)
Den här uppsatsen undersöker symboliken av blodet på och från kvinnliga kroppar i skräckfilm och jämför hur de kvinnliga och manliga karaktärerna behandlas. En central del av uppsatsen är också att hitta kopplingar mellan blod, religion och sexualitet. För att besvara frågeställningarna genomfördes en kvalitativ bildanalys av två scener från vardera av filmerna Carrie (1976), A Nightmare on Elm Street (1984) och Scream VI (2023). Den teoretiska grunden för uppsatsen är Erwin Panofskys ikonologiska tolkning samt den manliga blicken av Laura Mulvey. Sammanfattningsvis visar studien att blod har använts som ett medel för att straffa de kvinnliga karaktärerna i de tre filmerna, den ikonologiska tolkningen bidrog till en förståelse om hur den manliga blicken fortfarande formar karaktärer och berättande, samt hur puritanismen har satt spår i den amerikanska filmindustrin.
35

Optical Navigation for Autonomous Approach of Unexplored Small Bodies / Autonomt visionsbaserat navigationssystem för att närma sig en outforskad liten himlakropp

Villa, Jacopo January 2020 (has links)
This thesis presents an autonomous vision-based navigation strategy applicable to the approach phase of a small body mission, developed within the Robotics Section at NASA Jet Propulsion Laboratory. Today, the operations performed to approach small planetary bodies are largely dependent on ground support and human decision-making, which demand operational complexity and restrict the spectrum of achievable activities throughout the mission. In contrast, the autonomous pipeline presented here could be run onboard, without ground intervention. Using optical data only, the pipeline estimates the target body's rotation, pole, shape, and performs identification and tracking of surface landmarks, for terrain relative navigation. An end-to-end simulation is performed to validate the pipeline, starting from input synthetic images and ending with an orbit determination solution. As a case study, the approach phase of the Rosetta mission is reproduced, and it is concluded that navigation performance is in line with the ground-based state-of-the-art. Such results are presented in detail in the paper attached in the appendix, which presents the pipeline architecture and navigation analysis. This thesis manuscript aims to provide additional context to the appended paper, further describing some implementation details used for the approach simulations. / Detta examensarbete presenterar en strategi för ett autonomt visionsbaserat navigationssystem för att närma sig en liten himlakropp. Strategin har utvecklats av robotikavdelningen vid NASA Jet Propulsion Laboratory i USA. Nuvarande system som används för att närma sig en liten himlakropp bygger till största delen på markstationer och mänskligt beslutsfattande, vilka utgör komplexa rutiner och begränsar spektrumet av möjliga aktiviteter under rymduppdraget. I jämförelse, det autonoma system presenterat i denna rapport är utformat för att köras helt från rymdfarkosten och utan krav på kontakt med markstationer. Genom att använda enbart optisk information uppskattar systemet himlakroppens rotation, poler och form samt genomför en identifiering och spårning av landmärken på himlakroppens yta för relativ terrängnavigering. En simulering har genomförts för att validera det autonoma navigationssystemet. Simuleringen utgick ifrån bilder av himlakroppen och avslutades med en lösning på banbestämningsproblemet. Fasen då rymdfarkosten i ESA:s Rosetta-rymduppdrag närmar sig kometen valdes som fallstudie för simuleringen och slutsatsen från denna fallstudie var att systemets autonoma navigationsprestanda var i linje med toppmoderna system. Den detaljerade beskrivningen av det autonoma systemet och resultaten från studien har presenterats i ett konferensbidrag, som ingår som bilaga till rapporten. Inledningen av rapporten syftar till att förtydliga bakgrunden och implementering som komplement till innehållet i bilagan.
36

Konstruerad utsatthet : En bildsemiotisk analys av Nathalie Djurbergs stop motion-filmer Greed och Cave / Constructed exposedness : A visual semiotic analysis of Nathalie Djurberg’s stop motion-films Greed and Cave

Cserhalmi, Nora January 2019 (has links)
This essay aims to analyse how the exposedness is constructed in the Swedish contemporary artist Nathalie Djurberg’s two stop motion-films Greed and Cave. Five stills from Greed and three stills from Cave will be examined from a feminist perspective with a theoretical viewpoint based on theories from both art history and film studies. The method applied is visual semiotics which focuses on how meaning is created within an artwork rather than what the meaning is. The stills from Djurberg’s films are analysed first on a denotative level and then on a connotative level. Furthermore, visual semiotics theorises that everything is made up of systems of signs which allows this essay to study how the women in Djurberg’s movies functions as signs. The essay demonstrated that the women in Djurberg’s films can be seen as passive objects under the power of the male gaze. However, the analysis also displayed that the woman in Cave can be perceived as someone who defies the patriarchal norms for how a woman should behave and look. Nonetheless, the exposedness of these women seems to be constructed firstly in their bodies and how they are represented, both in looks but also how they are posed to reinforce patriarchal conventions in the female representation, and secondly in their relation to male characters - or the implied male gaze from a spectator - in the films. The women in Djurberg’s films can thus be understood as signs for male sexual desires, as signs for the Woman posing as the Man’s opposite, as the objective for His gaze.
37

Homoerotisk sensibilitet : Byggandet av homosexuell identitet genom konsthistorien / Homoerotic Sensibility : The Construction of Homosexual Identity Throughout the History of Art

Varnauskas, Jacob January 2020 (has links)
The question of homoerotic sensibility is, in the purpose of this thesis, a matter of visual language connected to the portrayal of male bodies. By identifying this sensibility throughout the western art canon the essay seeks to understand its origins, development and function in relation to expressions of power. With the introduction of theorists such as Alois Riegl, Laura Mulvey, Abigail Solomon-Godeau and Raewyn Connell, the aim is to deconstruct homosexual masculinity. Adapting formal analysis and parts of visual semiotics, the focus lies on the visual expression of power through the homoerotic gaze, and asks what consequences it has in forming homosexual identity. Greek antiquity is home not only to the ideals that foster western art history, but is also where we find early examples of same-sex affection being portrayed in the arts. Hence classical antiquity is so important for the homoerotic: whenever the classical language of style is popular throughout history, we are sure to find homoerotic sensibility. For reasons mentioned, the main periods analyzed are the Italian Renaissance, the French Neoclassicism and then, naturally the late 20th century onwards as this is the period of gay liberation and modern homosexual identity.  By identifying classical acceptance of homosexual relations only in the form of a clear social hierarchy, we soon discover how homosexuality has appropriated the idea of binary difference within its masculinity throughout history. Accepting relationships only between erastes and eromenos, or man and ephebe, homosexuality is forced to exist only on the terms of difference of power. With classical ideals, these tendencies are recurring in the visual representation of male homosexuality, and becomes a big part of the liberation and forming of a modern identity in the late twentieth century. As a result of objectification of the male body, in combination with idealized and sexualized power, modern gay culture has in many ways embraced a destructive culture shaped by misogynist ideas of hegemonic culture, where sexual violence exists, but is not spoken of.

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