A rich diversity of social behaviours exists in the animal kingdom, and these behaviours have evolved to perform a variety of adaptive functions. Social behaviours show variation both among and within species, however the mechanisms that give rise to this variation are not well understood. Using fruit flies (Drosophila melanogaster), my goal was to uncover the genetic and behavioural mechanisms that underpin natural variation in two different social behaviours: sociability and sexual aggression. First, I showed that sociability, which is the tendency of animals to engage in friendly activities together, is influenced by indirect genetic effects (IGEs), and that encounters among individuals drive these effects (Chapter 2). I then showed that sociability and social plasticity have low-moderate heritability (Chapter 3), and sociability is not correlated between the sexes or with activity. I then generated lineages of flies with high and low sociability using artificial selection (Chapter 4). The evolved lineages had significantly diverged sociability which was not associated with fitness measures or nearest-neighbor distances, but was negatively correlated with intrasexual aggression (Chapter 4). Finally, in sexual aggression, which I quantified as male forced copulation rate, I showed that evolved differences and differences due to social plasticity were both associated with the differential expression of many genes, but only a few of these genes were significant in both (Chapter 5). I also showed that these sets of genes are enriched in neuropeptide hormone and serotonin gene ontology categories, and that 4 of 7 chosen genes were validated for their effects on sexual aggression. Overall, this thesis sheds light on the complex mechanisms that underlie variation in these social behaviours, and it paves the way for future research to further elucidate some of these mechanisms, especially on the genetic basis of sociability using the evolved lineages I generated. / Thesis / Doctor of Philosophy (PhD) / Individual animals tend to vary in many traits including social behaviours. Using fruit flies, my goal was to understand what causes individuals to vary in two social behaviours: sociability and sexual aggression. I found that highly sociable flies tended to influence other flies to become more sociable due to a change in how much these flies interacted. I also found that individual differences in sociability are moderately heritable, and the genetic variation contributing to this is different between the sexes. Also, less sociable flies tended to be more aggressive than highly sociable flies. Finally, for sexual aggression, I showed that variation in a male’s success in forcibly mating with a female was associated with changes in the expression of hundreds of genes, but these changes were mostly unique for evolved versus environmentally induced variation. Future work will similarly look to identify genes involved with individual differences in sociability.

The monograph Ripped from the land, shipped away, and reborn introduces the concept Destierro-which translates as uprooting, deracination, exile, exodus, and banishment- to unthink the intellectual, political, and legal categories used by prevailing intellectual models to narrate/explain the 2002 massacre, occurred at the community of Bellavista-Bojayá-Chocó-Colombia. This thesis offers a critical prospect of the event. It highlights ethno-historical analytics to deconstruct the concepts of forced displacement, and forced migration. I study the racial, class, gender, generational, and regional dimensions undergirding this phenomenon to propose an Afrodiasporic Decolonial Critique of the field of Forced Migration. Single-axis explanations of this event and phenomenon have failed to move forward a complex analytical framework to fully explain the joint effect of multiple systems of oppression at play in events of land dispossession. Variables such as race, place, gender, and class; historical processes such as colonialism, the development of capitalism, contemporary place-based ethno-territorial social mobilization, and neoliberal multiculturalism intersect in this massacre. Accordingly, it is an imperative for critical historical sociological research to craft theories, and concepts to understand these crossroads. The basic argument I develop is that the concepts of forced displacement, and forced migration are formulas for historical erasure, and therefore limited to contribute to the demands for reparation of the affected populations. Territories are socio-geo-historical formations that can only be understood within the context in which they are conceived, produced, re-produced, and unproduced. Likewise, the categories used to name and study land dispossession need to be contextually and historically grounded to capture both complex local specificities, and global linkages. I advocate for concepts that can be used as categories of analysis, social mobilization, and reparation; to unveil the historical roots of the current constellation of processes, which are generating a new cycle of Diaspora of the Afrocolombian population, and similar contexts in the world-system in which this phenomenon is observable. In this vein, unthinking/deconstructing the concepts of forced displacement, and forced migration, as well as the massacre of Bellavista as an event of forced displacement, is an attempt to write stories that can repair the broken dignity of those that have been, and still are continually exploited.

No description available.

[pt] O trabalho teve como objetivo geral analisar como se apresentam e como se desenvolvem as formas de proteção e/ou desproteção (internacional e nacional) às pessoas e famílias que vivem o deslocamento interno e forçado em função da violência urbana e dos conflitos armados no município do Rio de Janeiro. Em relação aos objetivos específicos, destacam-se: a) conhecer as causas e determinantes que motivam o deslocamento interno e forçado em função da violência urbana e os conflitos armados no município do Rio de Janeiro; b) identificar como se apresentam as percepções das pessoas e grupos de pessoas que vivenciam e/ou percebem essa problemática; c) examinar como se efetivam os elementos que se configuram como respostas (de resistência, organização e mobilização) das pessoas e famílias que vivenciam e/ou percebem essa problemática; d) tipificar de forma qualitativa o público deslocado interno e forçado no Rio de Janeiro a partir das particularidades dos conflitos armados. Optou-se pela análise do discurso, constituindo a tese através de variados exercícios analíticos, por fontes de várias ordens, por meio: do levantamento de estudos bibliográficos; do resgate e apoio em um corpus material (estrofes de músicas e matérias/reportagens); e da análise do corpus de discursos orais/institucionais (entrevistas semiestruturadas). Constituiu-se um modelo metodológico próprio (singular) de acordo com os objetivos estabelecidos, a particularidade do objeto de estudo e a organização para a coleta de dados. Partiu-se da abordagem intencional e/ou de conveniência, com grupos específicos que estiveram dispostos a dar sua opinião. Os deslocamentos internos e forçados estão imersos no movimento determinado pela natureza centralizadora das classes dominantes, e as particularidades do conflito armado não-internacional no Rio de Janeiro determinam o fenômeno em questão (níveis de violências, hostilidades, lógica da guerra e da militarização do cotidiano etc.). Se debate a situação dos deslocamentos internos e forçados no plano internacional, e leva-se em conta os sistemas de proteção de direitos humanos e a proteção aos refugiados como gênese à proteção dos deslocados internos. Após resgatar a construção da proteção internacional aos deslocados internos forçados, se discute a violência como processo constitutivo no cenário brasileiro, o que remete ao tema do capitalismo dependente e a generalização dos mecanismos coercitivos. Ao adentrar a violência urbana e os conflitos armados no Rio de Janeiro destacam-se a (para)militarização e a metáfora da guerra como condições que se retroalimentam na representação da favela como indissociável da violência e na militarização ampliada em meio às disputas por controle econômico-territorial, entre atores que despontam como os grupos que fomentam o fenômeno do deslocamento interno e forçado (milícias, facções e o Estado). Evidencia-se o público deslocado interno como segmento da superpopulação relativa, precarizados nas condições de vida, de trabalho e de privações, categorizados a partir dos deslocamentos: a) direto; b) indireto por decisão; c) indireto por circunstância. O fenômeno apresenta-se em situações de elevado risco de vida e insegurança em que predomina o silêncio. Esse público tipifica-se na situação do deslocamento intramunicipal e nos deslocamentos em função da desconformidade dos padrões estabelecidos pelos grupos/atores armados; se efetiva em meio a constituição de fronteiras físicas e simbólicas “visíveis” (no faccionamento dos territórios). Sobre a proteção social, à defesa dos direitos humanos em programas de proteção do Estado adquire centralidade tendo em vista o público-alvo acompanhado. A assistência social, através de seus equipamentos territorializados, tem relevância sobre o tema nos territórios de favelas frente a influência das ações dos grupos armados (como porta de entrada da população e como instrumento de respostas, assim como colhendo os desafios da viabilização do encaminhamento e atendimento pela via do trabalho coletivo e dos processos de trabalho em rede em meio as violências físicas e verbais e a produção de regras pelos grupos armados que impactam essas atuações). A questão da habitação emerge para ser pensada ao se entender a desigualdade e a manutenção da segregação socioespacial, da favela como lugar que colhe os efeitos negativos da violência urbana e os conflitos armados, e o PMCMV como lócus de experiência dessa problemática. O tema da produção de dados para a construção de marcos legais e as políticas de proteção e assistência ganha relevância no tocante ao objeto de estudo que é marcado pela invisibilidade (vazio cartográfico), em função da inexistência de dados e a complexidade do fenômeno no que tange ao elevado risco e insegurança e, portanto, tem-se a necessidade de publicizar esse tema. A demanda da assistência em saúde aos deslocados internos e forçados no Rio de Janeiro se apresenta como uma necessidade intrínseca frente às experiências do elevado risco de vida e insegurança, que despontam de forma negativa na saúde física e mental dos grupos de pessoas que sofrem com os conflitos armados, onde urge a necessidade de pensar espaços e políticas voltados aos cuidados e à assistência. / [en] The general objective of the work was to analyze how to present and how to develop forms of protection and/or lack of protection (international and national) to people and families who experience internal displacement and force due to urban violence and armed conflicts in the municipality of Rio de Janeiro. In relation to the specific objectives, the following stand out: a) to know the causes and determinants that motivate internal displacement and force due to urban violence and armed conflicts in the municipality of Rio de Janeiro; b) identify how it presents itself as a symbol of people and groups of people who experience and/or perceive this problem; c) monitor how the elements that are configured as responses (resistance, organization and support) of people and families who experience and/or perceive this problem are implemented; d) qualitatively typify the internally displaced and forced public in Rio de Janeiro based on the particularities of armed conflicts. We opted for discourse analysis, constituting the thesis through varied analytical exercises, from sources of various orders, through: the survey of bibliographic studies; rescuing and supporting a material corpus (songs and articles/reports); and the analysis of the corpus of oral/institutional discourses (semi-structured interviews). A unique methodological model was constituted according to the objectives achieved, the particularity of the object of study and the organization for data collection. The starting point was an intentional and/or preferred approach, with specific groups that were willing to give their opinion, and to undergo theoretical saturation therapy. Internal and forced displacements are immersed in the movement determined by the centralizing nature of the dominant classes, and the particularities of the non-international armed conflict in Rio de Janeiro determine the phenomenon in question (levels of violence, hostilities, logic of war and the militarization of everyday life etc). The situation of internal and forced displacements at the international level is discussed, and human rights protection systems and refugee protection are taken into account as a genesis for the protection of internally displaced persons. After rescuing the construction of international protection for forced internally displaced people, violence is discussed as a constitutive process in the Brazilian scenario, which refers to the theme of dependent capitalism and the generalization of coercive mechanisms. When entering urban violence and armed conflicts in Rio de Janeiro, the (para)militarization and the metaphor of war stand out as conditions that feed back into the representation of the favela as inseparable from violence and in the expanded militarization in the midst of disputes for economic control -territorial, between actors who emerge as groups that foment the phenomenon of internal and forced displacement (militias, factions and the State). The internally displaced public is evidenced as a segment of the relative overpopulation, precarious in terms of life, work and deprivation, categorized from the displacements: a) direct; b) "indirect" by decision; c) indirect by circumstance. The phenomenon appears in situations of high risk to life and insecurity in which "silence" predominates. function of non-compliance with the standards established by armed groups/actors; it is effective amid the constitution of "visible" physical and symbolic borders (in the "factionalization of territories"). On social protection, the defense of human rights in programs for the protection of the The State acquires centrality in view of the target audience followed. Social assistance, through its territorialized equipment, has relevance on the subject in the territories of favelas in view of the influence of the actions of armed groups (as a gateway for the population and as an instrument of answers, as well as picking up the challenges of facilitating the referral and assistance through collective work and networking processes in the midst of physical and verbal violence and the production of rules by armed groups that impact these actions). The issue of housing emerges to be considered when understanding inequality and the maintenance of socio-spatial segregation, the favela as a place that reaps the negative effects of urban violence and armed conflicts, and the PMCMV as the locus of experience of this problem. The issue of data production for the construction of legal frameworks and protection and assistance policies gains relevance with regard to the object of study that is marked by invisibility (cartographic emptiness ), due to the lack of data and the complexity of the phenomenon with regard to the high risk and insecurity and, therefore, there is a need to publicize this theme. The demand for health care for the internally displaced and forced in Rio de Janeiro is an intrinsic need in the face of the high risk of life and insecurity, which negatively affect the physical and mental health of the groups of people who suffer from the armed conflicts, where there is an urgent need to think about spaces and policies aimed at care and assistance.

Digitaliseringen i samhället har bidragit till utvecklade teknologier där den dagliga kommunikationen blivit mer digital och det har förändrat samhället vi lever i. Covid-19-pandemin har tvingat organisationer till att stänga ner sina arbetsplatser och ta till tvingande åtgärder för att minska smittspridningen. Åtgärderna har resulterat i ett påtvingat distansarbete där arbetet sker digitalt för medarbetarna. Tidigare forskningen kring påtvingat distansarbete under covid-19 har fokuserats på hur distansarbete påverkar medarbetarnas produktivitet ocheffektivitet. Få studier har gjorts med avseende på hur påtvingat distansarbete påverkar medarbetarnas arbetsmotivation och privatliv. Syftet med studien är att undersöka relationen mellan påtvingat distansarbete och arbetsmotivation hos medarbetare. Studien bygger på en kvalitativ metod där det empiriska materialet består av fem semistrukturerade intervjuer som har genomförts på en organisation i västra Sverige. Studien finner att det finns olika faktorer som påverkar arbetsmotivationen där resultatet visar att påtvingat distansarbete till viss del påverkar arbetsmotivationen positivt. Resultatet redovisar även att balansen mellan arbetsliv och privatliv har varit både positiv och negativ under påtvingat distansarbete där personliga förutsättningar har legat till grund för variationen. / The digitalization in society has contributed to developed technologies where daily communication has become more digital and it has changed the society, we live in. The covid-19 pandemic has forced organizations to close their workplaces and take action to reduce the spread of the virus. The actions have resulted in forced teleworking where the daily work is done digitally by the workers. Previous research about forced telework during covid-19 has focused on how telework affects the workers productivity and efficiency. Few studies have been conducted with regards to how forced teleworking affects the workers work motivation and work-life balance. The purpose of this study is to examine the relationship between work motivation and forced teleworking. The study is based on a qualitative research method. The empirical materials consist of five semi-structured interviews that have been conducted on an organization in west Sweden. The Study finds that there are different factors that influence work motivation where the results show that forced teleworking has to some extent had a positive effect on work motivation. The result also shows that work-life balance has been both positive and negative during forced teleworking, where personal preferences have been the main reason for the variation.

[pt] O Triângulo Norte da América Central é composto por El Salvador, Honduras e Guatemala. Esses países compartilham um histórico de desigualdades socioeconômicas, violência e intervenções estrangeiras em seus territórios. Intensos fluxos emigratórios são registrados nesses países, com seus nacionais buscando chegar aos Estados Unidos percorrendo o território mexicano, razão pela qual consideramos esses quatro países como uma região de emigração, devido aos fluxos neles originados e atravessados. Essas migrações geralmente ocorrem de maneira forçada e em fluxos maciços. Consoante à mobilidade, ocorre um processo de contenção desses migrantes por parte dos Estados Unidos, que desenvolve mecanismos físicos e políticos para impedir a entrada dessas pessoas em seu território, além de imporem políticas migratórias e fronteiriças ao México e aos países do Triângulo Norte da América Central para impedirem os fluxos de chegarem em sua fronteira. Assim sendo, percebemos esses quatro países como uma região de fronteira que se traduz em região de i-mobilidade migratória, pois nela ocorrem dois processos concomitantes, o de trânsito e o de controle do mesmo. Nesta dissertação, investigamos a violência como elemento deflagrador dessas migrações e como ela atinge os sujeitos migrantes ao longo de seu percurso à Terra Prometida, os Estados Unidos. Analisaremos as migrações ocorridas entre 2018 e 2021, com foco nas caravanas de migrantes centro-americanos, apresentando as inovações de sua organização e o perfil demográfico daqueles que as integraram, bem como as medidas tomadas pelos Estados Unidos e México para impedir essa mobilidade. / [en] The Northern Triangle of Central America is composed by El Salvador, Honduras and Guatemala. These countries share a history of socioeconomic inequalities, violence, and foreign interventions in their territories. Intense emigration flows are recorded in these countries, with their nationals seeking to reach the United States by traveling through Mexican territory, in what we consider these four countries as a region of emigration, due to the flows originating and crossing through them. These migrations usually occur in a forced way and in massive flows. The United States develops physical and political mechanisms to prevent these people from entering its territory and imposes migration and border policies to Mexico and to the countries of the Northern Triangle of Central America to prevent the flows from reaching its borders. Thus, we perceive these four countries as a border region that translates into a region of migratory i-mobility, because two concomitant processes occur there, that of transit and that of control of it. In this dissertation, we investigate violence as a triggering element of these migrations and how it affects the migrant subjects along their journey to the Promised Land, the United States. We will analyze the migrations that occurred between 2018 and 2021, focusing on the Central American migrant caravans, presenting the innovations of their organization and the demographic profile of those who integrated them, as well as the measures taken by the United States and Mexico to prevent this mobility.

[pt] Este trabalho tem como objetivo evidenciar a relevância do Brasil no cenário internacional como reconhecido agente ratificador e internalizador de normas da Organização Internacional do Trabalho a respeito da erradicação do trabalho escravo, bem como destacar a fragilidade dessa posição alcançada diante de riscos existentes à política nacional de combate a essa prática ilegal. Para tanto, examina-se primeiramente a adesão brasileira ao corpo normativo da OIT. A partir da análise comparativa entre as iniciativas implementadas pelo Brasil para combater o trabalho escravo nos últimos 25 anos e as normas internacionais estabelecidas pelo Protocolo de 2014 adicional à Convenção do Trabalho Forçado número 29 da OIT (P29) – instrumento normativo vinculante mais recente e atualizado da organização a respeito do tema –, conclui-se que a política brasileira está contemplada em quase sua totalidade no referido documento. Portanto, sustenta-se que a resistência do Brasil em ratificar o Protocolo até hoje revela que o país se encontra em descompasso não só com o contexto internacional contemporâneo de enfrentamento ao trabalho escravo, mas sobretudo com o próprio histórico na OIT, apesar da influência brasileira na formulação do P29 e do prestígio internacional em torno da política nacional. Em seguida, a pesquisa aponta que o avanço brasileiro na erradicação do trabalho escravo ainda não está consolidado ao mapear uma série de obstáculos à política nacional que incluem tentativas de retrocesso, lacunas e falhas apontadas pela literatura especializada e por profissionais e pesquisadores ligados ao campo de pesquisa. Por fim, apresenta-se eventuais impactos econômicos e reputacionais para o Brasil diante do cenário de desmantelamento traçado. / [en] This dissertation aims to shed a light on Brazil s relevance in the international scenario as a recognised ratifying agent with a known path of internalisation of norms of the International Labour Organisation regarding the eradication of contemporary slave labour, as well as to highlight the fragility of this reached position in the face of existing risks to the national policy against this illegal practice. To this end, it is first examined Brazil s adherence to ILO s normative body. Based on a comparative analysis between the initiatives implemented by Brazil to fight slave labour in the past 25 years and the international norms established by the Protocol of 2014 to the Forced Labour Convention 29 (P29) – the latest and most up-to-date binding normative instrument within ILO regarding this topic –, it can be concluded that the Brazilian policy is almost entirely contemplated in the referred document. Therefore, it is arguable that Brazil s resistance to ratify the Protocol reveals that the country is out of step not only with the contemporary international context of confronting slave labour, but above all with its own historical stance within ILO, despite Brazilian influence in the formulation of P29 and international prestige around the national policy. The research, then, points out that Brazil s progress towards the eradication of slave labour is not yet consolidated by mapping a series of obstacles to the national policy that encompasses retrogression attempts, gaps and failures pointed out by specialised literature and professionals and researchers related to the field. Finally, it presents possible economic and reputational impacts for Brazil in view of the dismantling scenario outlined.

Bakgrund: Något som blivit mycket aktuellt i och med Covid-19 är distansarbete. Distansarbetehar ökat under flera år, mycket tack vare teknologisk utveckling. Men när Folkhälsomyndighetensrekommendationer kom att man skulle begränsa sina sociala kontakter var det hela arbetsplatsersom ställde om till distansarbete. Styrning är en vital del av en organisation som kan främja bådemedgång och motgång. Styrningen måste dessutom anpassas till sin omvärld, vilket ändradesdrastiskt i och med det påtvingade distansarbetet. Syfte: Syftet med studien är att kartlägga hur styrningen av kunskapsintensiva organisationer harpåverkats av påtvingat distansarbete och skapa förståelse för hur chefer hanterar dennaomställning. Genomförande: Studien har genomförts med kvalitativ metod och en abduktiv ansats. Empiriskadata är insamlad genom 5 intervjuer över Teams och 4 mailkompletteringar med sammarespondenter. Respondenterna är chefer i kunskapsintensiva organisationer som vi i tidigareyrkesroller har haft kontakt med. Det har även tagits fram en teoretisk referensram som skall bistådet empiriska materialet att svara på forskningsfrågorna. Slutsats: Till att börja med har vi upplevt att samtliga respondenter haft ett väletableratkultursystem som har hjälpt dem genom distansarbetet. Ett väletablerat kultursystem innebär ävenatt organisationerna haft en hög tillit till sina medarbetare vilket enligt Baruch (2000) är enavgörande faktor för distansarbete. Detta då tillit är en nödvändig faktor för att respondenternaskall kunna låta medarbetarna styra sig själva i större utsträckning. Vi ser även att respondenternahar arbetat reaktivt med svårigheter som uppkommit i och med distansarbetet. Detta har de kunnatgöra på grund av organisationernas interaktiva arbetssätt. De små organisationerna har haft flermöten för att kompensera för bristande kommunikation vid distansarbete. Medan de störreorganisationerna fått göra större förändringar i sina organisationer. / Background: Remote work has been all but unnoticed during the Covid-19 pandemic. Remotework is a growing phenomenon, thanks to technological advancement during the last decade.When Sweden's public health authority recommended that people should limit their socialengagements, organisations were fast to get their worker’s home. Management Control inorganisations is a vital part for success. The management control systems also must fit into itssurroundings, which dramatically changed with the forced distance work. Purpose: To map how management control in knowledge intensive organisations have beenaffected by forced distance work and increase understanding for how leaders have managed thatconversion. Methodology: The study is qualitative, with an abductive approach. The empirical data wascollected through five semi-structured interviews and four e-mail conversations with the samerespondents. The respondents are five leaders from knowledge intensive organisations.Additionally, we have created a theoretical framework to support the empirical data in answeringthe research questions. Conclusion: The respondents has had strong cultural systems to help them through the remotework situation. A strong cultural system also means that the respondents trust for their employeeshas been high. Which in turn is a meaningful factor the respondents to be able to let their employeesbe able to self-govern themself during remote work. We have also seen the respondents workingreactively to solve problems that have occurred during remote work. They have been able toaccomplish this much thanks to their ability to work interactively with each other. The smallorganisations have had more meetings to compensate for flawed communications in the start ofremote working. Whereas the larger organisations have had to make bigger organisational changes.

Syftet med denna studie är att undersöka hur revisionsbyråer har anpassat sig i förändradeomständigheter orsakade av påtvingat distansarbete och att ge en inblick i hur de upprätthåller legitimitet i revisionsarbetet. En kvalitativ studie har genomförts medsemistrukturerade intervjuer med revisorer samt en dokumentstudie med interna dokument som vi har fått från respondenterna. Dokumenten innehåller beskrivningar av revisorers omställning inom teknologi och kommunikation. Resultaten visar att revisorer och revisionsbyråer har kunnat fullgöra deras arbetsuppgifter även om de har saknat fysiskinteraktion med medarbetare och klienter. Revisorers och revisionsbyråers förmåga att upprätthålla legitimitet har i flera situationer däremot försvårats vad gäller befintliga förväntningar. De har trots detta ställt om tillräckligt bra för att kunna upprätthålla deras legitimitet. / The purpose of this study is to examine how audit firms have adjusted in changed circumstances caused by forced telework and to provide an insight into how they maintain legitimacy in the audit work. A qualitative study has been conducted with semi-structured interviews with auditors as well as a document study with internal documents that we have received from the participants. The documents contain descriptions of the auditors adjustment in technology and communication. The results show that auditors and audit firms have been able to fulfill their duties, even though they have lacked physical interaction with colleagues and clients. Auditors and audit firms ability to maintain legitimacy has in several situations deteriorated regarding existing expectations. They have nevertheless adjusted well enough to be able to maintain their legitimacy. This essay is written in Swedish

Forced response which is blade vibration due to an external excitation can lead to blade failure. The estimation of the level of vibration is dependent on the determination of aerodynamic damping. This thesisinvestigates the determination of aerodynamic damping at high reduced frequencies in turbomachines. The aerodynamic damping was calculated by a linearized Navier-Stokes flow solver with exact 3D non-reflecting boundary conditions. The method was validated using the two-dimensional test cases (Standard Configuration 5 and 8). Thereafter, two 3D profiles were also investigated: an aeroelastic turbine rig (AETR) which is a subsonic turbine case, and a virtual integrated compressor (VINK) which is a transonic compressor case. In AETR case, the first bending mode with reduced frequency 2.0 was studied. The 3D acoustic modes were calculated and the rate of decay was plotted as a function of nodal diameter and radial order. This plot identified six acoustic resonant points which included two points corresponding to the first radial order. The six resonance points correspond to six peaks in the damping curve. In VINK case, the fifth mode (1854 Hz, reduced frequency 3.1) was investigated. Acoustic resonance was predicted to occur for the first and second radial orders at the inlet. It was concluded that the higher order resonance points are influencing the damping curve. There were some inconsistencies in the results and grid convergence was not achieved. These inconsistencies were due to the difficulty in calculating the acoustic modes at the transonic inlet with an impinging shock. / Aerodynamiskt påtvingade vibrationer, som är bladvibrationer på grund av en extern excitation kan leda till haveri. Prediktering av vibrationen är beroende av bestämning av aerodynamisk dämpning. I detta arbete undersöks bestämningen av aerodynamisk dämpning vid höga reducerade frekvenser i turbomaskiner. Den aerodynamiska dämpningen beräknades genom en linjäriserad Navier-Stokeslösare med exakta 3D icke-reflekterande gränsvillkor. Metoden validerades med hjälp av de tvådimensionella testfallen (Standardkonfiguration 5 och 8). Därefter undersöktes två 3D-profiler: en aeroelastisk turbinrigg (AETR), som är en subsonisk turbinenhet och en virtuell integrerad kompressor (VINK) som är ett transoniskt kompressorfall. I AETRfallet undersöktes det första böjningsformen med reducerad frekvens 2.0. 3D akustiska lägen beräknades och graden av förfall visades som en funktion av noddiameter och radiell grad. Denna metod identifierade sex akustiska resonanspunkter som innehöll två punkter som motsvarade den första radiella graden. De sex resonanspunkterna motsvarar sex toppar i dämpningskurvan. I VINK-fallet undersöktes den femte svängningsformen (1854 Hz, reducerad frekvens 3.1). Akustisk resonans förutspåddes inträffa för första och andra radiella graden vid inloppet. Slutsatsen drogs att de högre ordningens resonanspunkter påverkar dämpningskurvan. Det fanns vissa inkonsekvenser i resultaten och gridkonvergens uppnåddes inte. Dessa inkonsekvenser berodde på svårigheten att beräkna de akustiska svängningsformerna vid det transoniska inloppet med en stötvåg.