Sökning: "Emma Jakobsson"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Emma Jakobsson.

1. 1. Black holes and trapped surfaces

   Författare :Emma Jakobsson; Ingemar Bengtsson; István Rácz; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

   Sammanfattning : The study of black holes is an important part of general relativity. However, the very definition of black holes is not completely satisfactory. Alternative definitions are based on the concept of trapped surfaces. This licentiate thesis is based on work with the aim to better understand the behaviour of such trapped surfaces. LÄS MER

3. 2. Shapes of Spacetimes : Collected tales of black holes

   Författare :Emma Jakobsson; Ingemar Bengtsson; Marc Mars; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

   Sammanfattning : In theory, the existence of black holes is predicted by general relativity. In reality, there is a general consensus that they exist in space; in particular at the center of many galaxies. The theory of black holes has been around for decades, but there are still interesting questions calling for attention. LÄS MER

4. 3. Structural Studies of Echinococcus granulosus Fatty-acid-binding Protein 1 and Human Semicarbazide-sensitive Amine Oxidase

   Författare :Emma Jakobsson; Gerard Kleywegt; Andrea Mattevi; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; semicarbazide-sensitive amine oxidase; vascular adhesion protein-1; copper-containing amine oxidase; fatty-acid-binding protein; Echinococcus granulosus; crystal structure; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi;

   Sammanfattning : The parasite Echinococcus granulosus causes hydatid disease, a major zoonosis. A fatty-acid-binding protein, EgFABP1, is important for the parasite, as it must acquire almost all its lipids from its environment or the host. The structure of EgFABP1 has been solved and refined to 1.6 Å resolution. LÄS MER

5. 4. Quaternary paleoceanography of the Arctic Ocean : A study of sediment stratigraphy and physical properties

   Författare :Emma Sellén; Martin Jakobsson; Jan Backman; Dorthe Klitgaard-Kristensen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Arctic Ocean; sedimentology; Quaternary; stratigraphy; physical properties; Earth sciences; Geovetenskap; Quaternary geology; Kvartärgeologi; Sedimentology; Sedimentologi; Marine Geoscience; marin geovetenskap;

   Sammanfattning : A Quaternary perspective on the paleoceanographic evolution of the central Arctic Ocean has been obtained in this PhD thesis by studying sediment cores from all of the Arctic’s major submarine ridges and plateaus. The included cores were mainly recovered during the Healy-Oden Trans-Arctic expedition in 2005 and the Lomonosov Ridge off Greenland expedition in 2007. LÄS MER

7. 5. Uncovering the Past through ancient DNA : The Fate and Legacy of the last hunter-gatherers in Western Europe and Northwestern Africa

   Författare :Luciana G. Simões; Mattias Jakobsson; Torsten Günther; Cristina Valdiosera; Emma Svensson; Martin Sikora; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; human evolution; archaeogenomics; ancient DNA; population genetics; hunter-gatherer; Populationsbiologi; Population Biology; Genetik; Genetics;

   Sammanfattning : The genetic analysis of ancient human remains has revolutionized the study of human history, opening a direct window onto the demographic and evolutionary events that shaped our species' past. I use state-of-the-art ancient DNA methodologies, from sample collection and DNA extraction to data analysis, to study the ancient past of the western Mediterranean region, where climate does not favour DNA preservation. LÄS MER