Sökning: "yta och innehåll"

Visar resultat 11 - 15 av 19 avhandlingar innehållade orden yta och innehåll.

1. 11. Inside Pulsating White Dwarfs: Clues from time-resolved spectroscopy

   Författare :Rubina Kotak; Astronomi - Genomgår omorganisation; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; pulsating white dwarfs; convection; asteroseismology; Astronomi; Astronomy; spectroscopy; Fysicumarkivet A:2002:Kotak;

   Sammanfattning : Several analyses using time-resolved optical spectrocopy of pulsating white dwarfs are presented. The data have been put to a number of uses. First, line-of-sight velocities associated with the pulsations have been measured in three hydrogen-atmosphere white dwarfs (DAVs), bringing the total number of such measurements up to five. LÄS MER

3. 12. Expanded knowledge on silk assembly for development of bioactive silk coatings

   Författare :Linnea Nilebäck; My Hedhammar; Renko de Vries; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Recombinant spider silk; Self-assembly; Biomaterial; Implant coating; Functionalization; Multi-functional; Bioactive; Cell culture scaffold; Antibacterial; Bioteknologi; Biotechnology;

   Sammanfattning : Silk is a fascinating natural material made from proteins that self-assemble through structural rearrangements into one of the toughest materials known. As silk is protein-based, durable and elastic, it has many features that makes it suitable as a scaffold material for tissue engineering. LÄS MER

4. 13. Phagocytosis by neutrophils - studies on phagosome dynamics and membrane traffic modulation by Streptococcus pyogenes

   Författare :Pontus Nordenfelt; Infektionsmedicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; fluorescence microscopy; membrane traffic; neutrophil; Streptococcus pyogenes; phagosome; phagocytosis;

   Sammanfattning : Neutrophils are our most numerous and deadly white blood cells and without them we would succumb quickly to infections by pathogens. The main mechanism that the neutrophils employ for our protection is phagocytosis, where they eat and enclose their target inside a membrane-bound organelle, the phagosome. LÄS MER

5. 14. Benthic environmental responses to climatic changes during the late Quaternary: a micropalaeontological and geochemical approach

   Författare :Claire McKay; Kvartärgeologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; late Quaternary; rapid climate change; Benguela; Mauritania; productivity; upwelling; benthic foraminifera;

   Sammanfattning : There is a limited understanding of how the benthic environment within upwelling regions responded to past rapid climatic changes. Within this thesis, a multiproxy approach is applied to two marine sediment cores from two coastal upwelling sites in the low latitude subtropical Atlantic. LÄS MER

7. 15. Potential for B-physics measurements with a fixed-target proton-collision experiment

   Författare :Jenny Ivarsson; Partikel- och kärnfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Elementary particle physics; CP Violation; quantum field theory; Elementarpartikelfysik; HERA-B; Fixed Target; kvantfältteori; B Physics; Monte Carlo Simulations; Fysicumarkivet A:1999:Ivarsson;

   Sammanfattning : HERA-B is a high-energy physics experiment at HERA. It is a fixed-target experiment with a forward spectrometer to benefit from the strong boost of beauty hadrons. The main goal of HERA-B is to detect and measure the degree of CP violation in exclusive B-decays, with emphasis on the {em golden} decay, $golden$. LÄS MER