Sökning: "Cecile"

Visar resultat 6 - 10 av 24 avhandlingar innehållade ordet Cecile.

1. 6. Organics in hydrothermal fluids from ultramafic-hosted vents of the Mid-Atlantic Ridge

   Författare :cecile konn; Stockholms universitet; []
   Nyckelord :hydrothermal; organics; serpentinization; origin of life;

   Sammanfattning : The process of serpentinization at slow spreading ridges is due to the circulation of seawater through outcropping mantle rocks. The peridotites of the mantle are altered via fluid-rock interaction generating, in the presence of Fe bearing minerals, high CH4- and H2-concentrations in the water column. LÄS MER

3. 7. SOX transcription factors : multifaceted regulators of central nervous system development

   Författare :Cécile Zaouter; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The central nervous system (CNS) is composed of three major cell types, namely neurons, astrocytes and oligodendrocytes that are mainly generated during embryonic stages by multipotent neural progenitor cells (NPCs). The decision of a NPC to remain in a self-renewing, undifferentiated state, or to commit to neuronal or glial differentiation is guided by the combined actions of transcription factors on their downstream target genes. LÄS MER

4. 8. Modélisation théorique de la spectroscopie d'actinides des solvatés

   Författare :Cecile Danilo; Ulf Wahlgren; Valerie Vallet; Jean-Pierre Flament; Timo Fleig; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Actinides; spectra; solution; Chemical physics; Kemisk fysik; kemisk fysik; Chemical Physics;

   Sammanfattning : The framework of this PhD is the interpretation of Nuclear Magnetic Relaxation Dispersion experiments performed on solvated U4+, NpO2+ and PuO22+, which all have an f2 configuration. Unexpectedly the two actinyl ions have a much higher relaxivity than U4+. LÄS MER

5. 9. Origin of organic compounds in fluids from ultramafic-hosted hydrothermal vents of the Mid-Atlantic Ridge

   Författare :Cécile Konn; Nils Holm; Jean-Luc Charlou; Barbara Sherwood Lollar; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Serpentinisation; hydrocarbons; organic compounds; ultramafic; hydrothermal; geochemistry; origin of life; Other earth sciences; Övrig geovetenskap; Other chemistry; Övrig kemi; Exogenous geochemistry; Exogen geokemi; geokemi; Geochemistry;

   Sammanfattning : Natural gas, primarily methane (CH4), is produced in substantial amounts in ultramafic-hosted hydrothermal systems. These systems could also generate oil (heavier hydrocarbons) and the first building blocks of life (prebiotic molecules). In the presence of iron bearing minerals, serpentinisation reactions generate H2. LÄS MER

7. 10. Memory Distortions Induced by Fluency : Behavioural and Electrophysiological Investigations

   Författare :Anne-Cécile Treese; Institutionen för psykologi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; memory distortions; recall-to-reject; celebrity; fluency; emotion; attractiveness; memory control;

   Sammanfattning : The investigation of memory distortions provides insights into how memory normally works. Adopting a cognitive neuroscience perspective, the present thesis aimed at investigating memory distortions and the neural correlates of processes contributing to successful control of memory interference in healthy participants. LÄS MER