E-Dissertationen: Search
Now showing items 31-40 of 2069
Tau lepton reconstruction with energy flow and the search for R-parity violating supersymmetry at the ATLAS experiment
(2012-08-31)
The ATLAS experiment at the Large Hadron Collider (LHC) is measuring proton-proton collisions at a centre-of-mass energy of √s=7 TeV since 2010, an energy never reached before in collider experiments. A wide variety of ...
Characterization of metallic nanoparticles by high-resolution X-ray absorption and X-ray emission spectroscopy
(2012-03-16)
In almost all areas of technology, metallic nanoparticles are of interest due to their special thermal, electronic, magnetic and optical properties.
Their special properties are mainly due to their small size which ...
Their special properties are mainly due to their small size which ...
Modulation der Neurotransmitterfreisetzung durch präsynaptische Cannabinoid-CB1-Rezeptoren und andere Rezeptoren
(2012-01-12)
Die Freisetzung von Überträgerstoffen (Transmittern) kann durch Rezeptoren gehemmt werden, die häufig direkt an den entsprechenden Nervenendigungen, also präsynaptisch lokalisiert sind. Prominentes Beispiel ist der ...
Homology Assessment in Molecular Phylogenetics: Evaluation, Improvement, and Influence of Data Quality on Tree Reconstruction
(2012-01-12)
Considering the final goal of every phylogenetic analysis, the reconstruction of taxon relationships from underlying data, little attention has been paid to the role of alignment accuracy and its impact on tree reconstruction. ...
Third-order Cosmic Shear Statistics: Covariance, Nulling, and E/B-mode decomposition
(2012-02-17)
Weak gravitational lensing has emerged in the last decade as a competitive cosmological probe to observationally constrain the properties of dark energy, probably the one with the most statistical power when the results ...
Mechanisms of NKT cell-mediated DC licensing and cross-priming
(2012-01-19)
The detection and destruction of virus-infected or tumor cells is the main task of CD8+ T cells. Their activation needs to be tightly regulated to avoid the misguided killing of healthy cells. To this end, ...
Sensitivity of the ATLAS experiment in pp-collisions at a centre of mass energy of 14TeV at the LHC to a Higgs boson with large decay-width to invisible final states
(2012-01-20)
So far experimentally not ruled out, the stealthy Higgs scenario proposes a hidden scalar sector, to which only the Higgs has non-vanishing and possibly large couplings. Due to decays into the scalars the Higgs acquires a ...
Anhydrous Phosphates of Molybdenum and Rhenium Synthesis, Crystallization, Crystal structures, and Spectroscopic investigations
(2012-01-19)
In this thesis, the crystal chemistry of anhydrous transition metal phosphates have been extended by the syntheses of a large number of molybdenum and rhenium phosphates, (MoVO)4(P2O ......
Das seltene kompatible Solut N-Acetyl-glutaminylglutamin-1-amid (NAGGN): Heterologe Expression des Genclusters aus Pseudomonas putida und Untersuchungen zur Funktion der putativen Biosyntheseenzyme
(2012-01-30)
Das Hauptaugenmerk der vorliegenden Arbeit richtete sich auf das kompatible Solut NAGGN, ein bislang relativ wenig untersuchtes Solut, das zu der Gruppe der acetylierten Aminosäurederivate gehört. Das NAGGN-Gencluster ist ...
A Sensitivity Study for Higgs Boson Production in Vector Boson Fusion in the H → ττ →lh + 3ν Final State with ATLAS
(2012-02-17)
For a hypothetical Higgs boson mass between 114.4GeV and about 135GeV the production by Vector Boson Fusion and the decay H → ττ →lh + 3ν is one of the most promising discovery channels at the LHC. In this thesis, a study ......