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Pulsar Searching and Timing with the Arecibo and Effelsberg Radio Telescopes
(2019-08-13)Pulsars are rapidly rotating, highly magnetized, neutron star remnants of the supernova explosions of massive stars. In this thesis, I mostly focus on recycled pulsars, which are old (approx 100 million years old) neutron ... -
Pulsar searching and timing with the Parkes telescope
(2014-12-08)Pulsars are highly magnetised, rapidly rotating neutron stars that radiate a beam of coherent radio emission from their magnetic poles. An introduction to the pulsar phenomenology is presented in Chapter 1 of this thesis. ... -
Pulsar searching with the Effelsberg telescope
(2020-02-21)Pulsars, highly magnetised rapidly-rotating neutron stars, have proved themselves to be incredible tools for exploring many aspects of fundamental physics and astrophysics. More opportunities for building new theories and ... -
Punktdefekte in Verbindungshalbleitern untersucht mit der gestörten Winkelkorrelation
(2013-05-29)Die Dissertation befasst sich mit der Charakterisierung von dotierten Halbleitern, im Speziellen mit AlN, GaN, deren ternäres Verbindungssystem AlGaN und ZnO. Diese Halbleiter mit Wurtzitstruktur finden bereits eine breite ... -
Puppe, Glücksgott, Fetisch?: Der Ekeko in der Bonner Amerikas-Sammlung, Probleme und Potentiale digitaler Objektklassifizierung
(2022)Digitization presents ethnological museums with the challenge of consolidating the paradigms of standard and diversity. This problem manifests in the object of the Ekeko, which requires to be assigned standardised object ... -
Puppet Regime vs. Lead Nation: Der lange Weg zur Anerkennung der DDR durch die USA
(2011-01-04)Am 4. September 1974 nahmen die Vereinigten Staaten von Amerika als 110. Staat der Welt und letzte der drei westlichen Siegermächte diplomatische Beziehungen zur Deutschen Demokratischen Republik auf. Mit der Unterzeichnung ... -
Purines and 9-deazapurines as Modulators of Multidrug Resistance-associated Protein 1 (MRP1/ABCC1)-mediated Transport
(2017-11-14)Expression of ABC-transport proteins is a major obstacle in cancer chemotherapy. Especially MRP1, P-gp and BCRP are expressed in different malignancies like lung cancer, colon carcinomas, leukemias, bladder cancer, myeloma, ... -
Pyrolyse von Metalloxiden und Silikaten unter Vakuum mit konzentrierter Solarstrahlung
(2005)In der vorliegenden Arbeit wurde untersucht, ob eine solarthermische Hochtemperaturpyrolyse von Mondgestein oder anderen Gesteinen im Vakuum zur Gewinnung von Sauerstoff prinzipiell möglich ist und welche Anforderungen ... -
Pyrrolizidine Alkaloids: Structure and Toxicity
(2008)Pyrrolizidine alkaloids show only minor toxicity in their native state, but are metabolized in the human or animal organisms to carcinogenic, teratogenic and mutagenic compounds, with the precise structure of these compounds ... -
Q in Context I: The Separation between the Just and the Unjust in Early Judaism and in the Sayings Source
(2015)The “Parting of the Ways” between Jews and Christians has only recently been extended to the question as to whether the Gospel Source Q still has to be considered “Jewish”. Especially the question of polemics seems to be ... -
Q in Context II: Social Setting and Archeological Background of the Sayings Source
(2015)For the right understanding of the Sayings Source Q not only the relation to early Judaism but also the social “landscape” in which the texts evolved is undeniably crucial. Here results of Galilean Archeology are brought ... -
QTL Analysis for Drought Tolerance Related to Root and Shoot Traits in Barley (Hordeum vulgare L.)
(2011-05-16)Enhancement of drought tolerance of cultivated barley via identifying the potential and beneficial QTL alleles of wild species (H. vulgare ssp. spontaneum C. Koch) is a great target in barley breeding. Therefore, ... -
Qualitative and quantitative assessment of sustainable urban stormwater management in Bogotá, Colombia
(2023-10-02)Rapid population growth and urbanization have triggered abrupt changes in land use, intensifying impervious surfaces and the loss of green areas. Sustainable urban drainage systems (SUDS) are an appealing alternative to ... -
Qualität der Kundeninformationen von Herstellern bei korrektiven Maßnahmen zu In-vitro Diagnostika: Analyse der vom BfArM 2005 bis 2014 publizierten Daten
(2018-08-15)In dieser Arbeit wurden erstmals die gesamten auf der Homepage des BfArM publizierten Kundeninformationen zu korrektiven Maßnahmen bei In-vitro Diagnostika auf Inhalt und Qualität überprüft. Der Vergleich mit den Rote Hand ... -
Qualitätskommunikation und Erfolgsfaktoren im Commodity-Marketing: Entwicklungsmöglichkeiten einer Getreidemarke mit regionaler Identität
(2010-06-10)In der Agrar- und Ernährungswirtschaft konzentrieren sich das Marketinginteresse und damit auch die Marketingforschung im Wesentlichen auf klassische Qualitätsprodukte wie Fleisch oder Bioprodukte sowie auf Nahrungsmittel ... -
Quality aspects of short duration VLBI observations for UT1 determinations
(2006)Today geodetic Very Long Baseline Interferometry (VLBI) is the most important technique for the determination of all components of earth rotation. Among all parameters describing the current earth rotation relative to a ... -
Quality Assurance and Safety issue of Pharmaceutical Products marketed in Developing countries
(2012-11-14)The circulation of substandard medicines remains a serious problem in the resource limited countries like Sub-Saharan Africa, where most of the drugs available are imported. Medicines sold in these markets are frequently ... -
Quality Enhancement in Cocoa Production: a Study of the Cocoa Sector of Ghana
(2022-07-26)The cocoa value chain emphasises farmers' poor environmental, social, and post-harvesting practices during cocoa beans production. These poor quality practices raise ethical and environmental issues in cocoa production and ... -
Quality improvement of perioperative outcome in cardiac interventions for children
(2023-08-11)Introduction: Congenital heart defects are one of the most common congenital malformations. Although optimized surgical techniques and improved intensive care management have resulted in approximately 90 ... -
Quality management, certification and related agricultural organisations along the value chain: Empirical study about Fairtrade coffee in China
(2015-06-08)Coffee quality tends to be defined from various dimensions to meet the demand of buyers. It goes beyond the physical and cupping qualities, with moral value and environmental concern becoming crucial features of the ...
