# Ph.D. Theses

 2018-02-2015:01 [PUBDB-2018-01266] Book/Report/Dissertation / PhD Thesis Schleper, P. Measurement of $Z$-boson production cross sections at √s = 13 TeV and $t\bar{t}$ to $Z$-boson cross-section ratios with the ATLAS detector at the LHC [DESY-THESIS-2018-004] Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS, 196 pp. (2018) [10.3204/PUBDB-2018-01266] = Dissertation, Universität Hamburg, 2018   The measurement of $Z$-boson production cross sections in $pp$ collisions at centre-of-mass energy of √s = 13 TeV is presented. Results are based on data corresponding to an integrated luminosity of 3.16 fb$^{-1}$ recorded with the ATLAS detector in 2015 at the LHC operating with the 25 ns bunch spacing configuration. [...] OpenAccess: Thesis_Nataliia__Zakharchuk - PDF; desy-thesis-18-004.title - PDF PDF (PDFA); 2018-02-1314:50 [PUBDB-2018-01172] Dissertation / PhD Thesis Tackmann, K. Measurement of the fiducial differential Higgs cross-section with respect to pT using the diphoton decay channel atps = 8TeV with ATLAS 191 pp. (2018) [10.3204/PUBDB-2018-01172] = Dissertation, University of Hamburg, 2017   AbstractThis thesis presents a measurement of the fiducial differential cross-section with respect to pT of Higgs boson production, using the diphoton decay channel. Theanalysis uses 20:3 fb-1 of proton-proton collision data at a centre-of-mass energy of 8TeV taken with the ATLAS detector in the year 2012. [...] OpenAccess: PDF; 2018-02-0716:03 [PUBDB-2018-01119] Book/Report/Dissertation / PhD Thesis Krasilnikov, M. Stability and Performance Studies of the PITZ Photoelectron Gun [DESY-THESIS-2018-003] Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS, 163 pp. (2018) [10.3204/PUBDB-2018-01119] = Dissertation, Universität Hamburg, 2017   The invention of free electron lasers (FELs) opened new opportunities for the investigation of natural phenomena. However, the operation of a FEL requires high energy, high peak current electron beams with very small transverse emittance which causes extreme requirements for the corresponding electron sources. [...] OpenAccess: Igor Isaev Thesis 2017 final for publishing - PDF; desy-thesis-18-003.title - PDF PDF (PDFA); 2018-02-0514:49 [PUBDB-2018-01055] Dissertation / PhD Thesis Ippen, E. P. High field terathertz radiation : Conduits to synchronized hyper spectral systems 267 pp. (2018) = Dissertation, Massachusetts Institute of Technology, 2018 Laser technology has seen significant development since its inception in 1960. After the first experiments of nonlinear phenomena in optics, the development of the mode-locked laser has led to rapid proliferation of the study of nonlinear frequency conversion techniques-enabling the conversion of light from the infra-red, all the way to the soft X-Ray region. [...] 2018-02-0116:16 [PUBDB-2018-00997] Book/Report/Dissertation / PhD Thesis Gallo-Voss, E. Search for third-generation scalar leptoquarks with the CMS experiment [DESY-THESIS-2018-002] Hamburg : Verlag Deutsches-Elektronen Synchrotron, DESY-THESIS, 185 pp. (2018) [10.3204/PUBDB-2018-00997] = Dissertation, Universität Hamburg, 2018   A search for pair produced scalar leptoquarks decaying into a top quark and a tau lepton using proton-proton collision data recorded in 2016 at a center-of-mass energy of 13TeV by the CMS experiment, corresponding to an integrated luminosity of 35.9fb$^{-1}$ is presented. The search is performed in final states with an electron or a muon, one or two hadronically decaying tau leptons, and additional jets. [...] OpenAccess: PhD_Thesis_Stoever - PDF PDF (PDFA); desy-thesis-18-002.title - PDF PDF (PDFA); 2018-01-1812:04 [PUBDB-2018-00689] Dissertation / PhD Thesis Naranjo Garcia, R. Measurements of top-quark properties at 8 TeV using the ATLAS detector at the LHC 229 pp. (2017) [10.3204/PUBDB-2018-00689] = Dissertation, Bergische Universität Wuppertal, 2017   This work presents the measurements of the charge asymmetry and top quark spin observables in ttbar events based on 20.3 fb$^{-1}$ of $\sqrt{s}$ = 8 TeV proton--proton collisions recorded with the ATLAS detector at the LHC. These analyses are performed in the dilepton final state, characterized by the presence of two isolated leptons (electrons or muons). [...] OpenAccess: PDF; 2018-01-0511:38 [PUBDB-2018-00183] Dissertation / PhD Thesis Dettendorfer, B. Dual career couples: Karriere in Beruf und Beziehung 1-23 (2001) = Dissertation, Freie Universität Berlin, 2001 Restricted: PDF PDF (PDFA); 2018-01-0510:46 [PUBDB-2018-00178] Dissertation / PhD Thesis Psenakova, K. Structural study of the ASK1:thioredoxin complex 98 pp. (2017) [10.3204/PUBDB-2018-00178] = Dissertation, Charles University in Prague, 2017   The mitogen-activated protein kinase (MAPK) cascade is an essential member of the cell defense system against stressors. The capability and efficiency of the cell reactions to different stress signals depend on signal transduction pathway, where signals from MAPK kinase kinase (MAP3K) are transferred through phosphorylation to downstream MAPK kinase (MAP2K) and finally to MAPK [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2018-01-0510:39 [PUBDB-2018-00177] Dissertation / PhD Thesis Torda, A. Struktur-Funktions-Analyse ausgewählter Proteine des Typ-III-Sekretionssystems aus Yersinia enterocolitica: YopB, YopD, YopQ, SycD 163 pp. (2017) [10.3204/PUBDB-2018-00177] = Dissertation, University of Hamburg, 2017   OpenAccess: PDF; External link: Fulltext 2018-01-0510:33 [PUBDB-2018-00176] Dissertation / PhD Thesis Bredehorst, R. Structural Characterization of Small basic protein (Sbp) and Accumulation associated protein (Aap) – two Proteins involved in Biofilm Formation in Staphylococcus epidermidis 119 pp. (2017) [10.3204/PUBDB-2018-00176] = Dissertation, University of Hamburg, 2017   Staphylococcus epidermidis is a nosocomial pathogen, which infects biotic and abiotic surfaces by forming adherent biofilms. Biofilm is a multilayered microbial community formed by the production of an extracellular matrix. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext