Sökning: "state transitions"

Visar resultat 26 - 30 av 265 avhandlingar innehållade orden state transitions.

1. 26. Simulating Functional Cycles and Drug Modulation in Ligand-gated Ion Channels

   Författare :Yuxuan Zhuang; Erik Lindahl; Grace Brannigan; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ion channels; molecular dynamics; markov state model; lipid modulation; nicotinic receptor; protein conformational transitions; Biophysics; biofysik;

   Sammanfattning : Understanding the intricate motions and conformational changes that govern biological processes remains a fascinating and challenging endeavor. The research presented in this thesis aims to elucidate the dynamic processes underlying biological functions, specifically focusing on the dynamics of pentameric ligand-gated ion channels (pLGICs), which play a crucial role in signal transduction within the brain. LÄS MER

3. 27. Theoretical Description of Electronic Transitions in Large Molecular Systems in the Optical and X-Ray Regions

   Författare :Nanna Holmgaard List; Jacob Kongsted; Hans Jørgen Aagaard Jensen; Roberto Cammi; Jeppe Olsen; Jens Oddershede; Denmark University of Southern Denmark Chemistry and Biology Department of Physics; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polarizable embedding; multiscale modeling; localized electronic transitions; response theory; QM MM; damped linear response; non-dipolar effects; light-matter interactions; multipole expansion; embedding potentials; local field effects; fluorescent proteins; computational chemistry; MCSCF; Teoretisk kemi och biologi; Theoretical Chemistry and Biology;

   Sammanfattning : The size and conformational complexity of proteins and other large systems represent major challenges for today's methods of quantum chemistry.This thesis is centered around the development of new computational tools to gain molecular-level insight into electronic transitions in such systems. LÄS MER

4. 28. Phase transitions and phase frustration in multicomponent superconductors

   Författare :Daniel Weston; Egor Babaev; Mats Wallin; Ilya Eremin; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

   Sammanfattning : Multicomponent superconductors described by several complex matter fields have properties radically different from those of their single-component counterparts. Examples include partially ordered phases and spontaneous breaking of time-reversal symmetry due to frustration between Josephson-coupled components. LÄS MER

5. 29. Phase transitions in porous media studied by NMR

   Författare :Dulce Vargas-Florencia; Istvan Furo; Magnus Nydén; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi;

   Sammanfattning : This Thesis presents studies of phase transitions ocurring in porous media. The investigated phase transitions include melting/crystallization, surface pre-melting and liquid-liquid phase separation of binary mixtures. LÄS MER

7. 30. High-speed optical modulators based on intersubband transitions

   Författare :Petter Holmström; KTH; []
   Nyckelord :;

   Sammanfattning : Optical modulators are essential components in high speedoptical communication. They are employed to circumvent theinherent speed limitations of direct modulated semiconductorlasers, and may also extend the transmission distance onoptical fibers by providing optical pulses with lowerchirp. LÄS MER