Sökning: "Molecular characterization"

Visar resultat 21 - 25 av 947 avhandlingar innehållade orden Molecular characterization.

1. 21. Targeting and function of CAH1 : Characterization of a novel protein pathway to the plant cell chloroplast

   Författare :Stefan Burén; Göran Samuelsson; Muriel Bardor; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis; chloroplast; endomembrane system; CAH1; protein targeting; N-glycosylation; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

   Sammanfattning : The chloroplast is the organelle within a plant cell where photosynthesis takes place. This organelle originates from a cyanobacterium that was engulfed by a eukaryotic cell. LÄS MER

3. 22. 3D Magnetic Photonic Crystals : Synthesis and Characterization

   Författare :Mei Fang; K.Venkat Rao; Lyubov Belova; Rajeev Ahuja; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; magnetic photonic crystals; photonic band gaps; Fe3O4 nanoparticles; silica; Optical physics; Optisk fysik; Materials science; Teknisk materialvetenskap;

   Sammanfattning : This thesis presents the synthesis methods and the characterizations of magnetic Fe3O4 nanoparticles, silica spheres with Fe3O4 nanoparticles embedded, and three dimensional magnetic photonic crystals (MPCs) prepared from the spheres. The structure, material composition, magnetic and optical properties, photonic band gaps (PBGs), as well as how these properties depend on the concentration of the magnetic nanoparticles, are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), superconducting quantum interference device (SQUID), Faraday rotation (FR) and optical spectrophotometers. LÄS MER

4. 23. Nonlinear materials for optical power limiting : characterization and modelling

   Författare :Hampus Lundén; Mikael Lindgren; Cesar Lopes; Bernd Eberle; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : High power laser pulses can be a threat to optical sensors, including the human eye. Traditionally this threat has been alleviated by colour filters that block radiation in chosen wavelength ranges. LÄS MER

5. 24. Molecular characterization and evolution of alpha-actinin : from protozoa to vertebrates

   Författare :Ana Virel; Lars Backman; Kristina Djinovic-Carugo; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alpha-actinin; evolution; spectrin repeat; intragene duplication; phylogenetic tree; spectrin superfamily; Biochemistry; Biokemi;

   Sammanfattning : alpha-actinin is a ubiquitous protein found in most eukaryotic organisms. The ability to form dimers allows alpha-actinin to cross-link actin in different structures. In muscle cells alpha-actinin is found at the Z-disk of sarcomeres. LÄS MER

7. 25. Molecular Cloning and Functional Characterization of Factors Involved in Post-transcriptional Gene Expression

   Författare :Shao-Bo Jin; Lars Wieslander; Maria Carmo-Fonseca; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; gene expression; pre-mRNA processing; pre-rRNA processing; Molecular biology; Molekylärbiologi;

   Sammanfattning : Gene expression in the eukaryotic cell is a fundamental cellular process, which consists of several distinct steps but extensively coupled to each other. From site of transcription in the nucleus to the cytoplasm, both mRNA and rRNA are associated with a proper set of proteins. LÄS MER