Sökning: "?13C"
Visar resultat 1 - 5 av 64 avhandlingar innehållade ordet ?13C.
1. Varved lake sediments and diagenetic processes
Sammanfattning : Varved (annually laminated) sediments are of great interest for inference of past environmental conditions, as they provide dated records with high time resolution. After deposition, the sediment varves are affected by diagenesis; i.e., chemical, physical and biological changes that occur within the sediment. LÄS MER
2. Migration in Prehistory : DNA and stable isotope analyses of Swedish skeletal material
Sammanfattning : The main aim of this thesis is to show how scientific methods may be used to look at migration in prehistory on the basis of archaeological material. The individuals examined represent the period 4 000 BC to 1 000 AD and have their geographical origins in various parts of Sweden.Ancient DNA analysis is employed in three cases. LÄS MER
3. Consuming and communicating identities : Dietary diversity and interaction in Middle Neolithic Sweden
Sammanfattning : Isotope analyses on human and faunal skeletal remains from different Swedish Neolithic archaeological contexts are here applied as a means to reconstruct dietary strategies and mobility patterns. The chronological emphasis is on the Middle Neolithic period, and radiocarbon dating constitutes another central focus. LÄS MER
4. Wake and be fine? : The effect of sleep on emotional memory
Sammanfattning : The aim of this thesis was to examine the effect of sleep on emotional memories. The first two studies examined the role of sleep in the generalization of fear learning and the third study examined how sleep affected the forgetting of unwanted emotional memories. LÄS MER
5. Modelling, analysis and optimisation of ship energy systems
Sammanfattning : Shipping is the backbone of today's economy, as 90% of global trade volumes is transported by sea. Much of our lifestyle today is only made possible by the existence of shipping as a cheap and reliable mean of transportation across the globe. LÄS MER