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Dissertation
Development of a new methodology in sensory science to detect the intention-behaviour gap in organic food consumption and investigate the effect of this gap on consumer’s subjective wellbeing
(2020-08)
Aktuelle Umweltherausforderungen wie die globale Erwärmung, der Klimawandel und der Verlust der biologischen Vielfalt und der natürlichen Ressourcen hängen mit dem Verhalten der Menschen zusammen. Nicht nachhaltige Produktion und Konsum erklären die meisten dieser Herausforderungen. Daher interessieren sich immer mehr Verbraucher für Bio-Lebensmittel, um ihr Engagement für ein nachhaltigeres Lebensmittelverhalten zu demonstrieren. Infolgedessen ist der Markt für Bio-Lebensmittel in letzter Zeit gewachsen. Verbraucher ...
Dissertation
Nachweis und Analyse BamA-assoziierter Faltungsintermediate des OmpA durch ortsgerichtete Fluoreszenzspektroskopie
(2020-05)
Die Faltung und Insertion von Außenmembranproteinen (OMPs) in die Außenmembran von Gram negativen Bakterien ist für das Leben der Zellen essentiell und erfordert den konservierten β-barrel assembly machinery (BAM) Komplex. Zahlreiche Studien befassen sich mit der Aufklärung des dahinterstehenden Faltungsmechanismus von OMPs, doch bislang ist nur sehr wenig darüber bekannt. Daher steht der Faltungsmechanismus der spontanen Faltung und Insertion von OMPs wie OmpA und der Einfluss der BAM Hauptkomponente BamA darauf, ...
Aufsatz
Influence of the degree of crystallinity and the surface free energy on the adhesion properties of different PLA/PBS blends in multicomponent injection molding
(2020-01-10)
Biocomposites made of biodegradable polymers have grown in interest due to their environmentally friendliness, considering that non-biodegradable polymers waste conduces to pollution, displaying high environmental impact in climatic changes. Therefore, in the presented study, biodegradable Poly (lactic acid) (PLA) and poly (butylene succinate) (PBS) were investigated as a series of PLA/PBS melt-blending compounds with the weight ratios of 50/50, 60/40, 70/30, 80/20 and 90/10. In a two-component injection molding ...
Dissertation
Optical Amplification in Disordered Waveguiding Systems
(2020)
Bei dem Phänomen der verstärkten Emission in ungeordneten Systemen handelt es sich um ein wiederentdecktes und über die letzten Jahrzehnte stark debattiertes Themengebiet in der Literatur. Diese Dissertation soll hierzu zwei experimentelle Ansätze bieten, wobei beide in der Lage sind, bei optischer Anregung entweder Random Lasing oder Verstärkte Spontane Emission zu zeigen.
In dieser Arbeit wird thermisch induzierte Faltenbildung (Wrinklebildung) als neuer Ansatz zur Herstellung von Streuzentren in wellenleitenden ...
Dissertation
Development of Energy use Profiles, Reduction Concepts, and Implementation of Renewable Energies in the Central Ugandan Pineapple Processing Chains
(2020-02)
Pineapples, like all fruits, are highly perishable and require either immediate consumption or preservation. To make them more stable and add value, four major processing methods are being employed in Uganda, i.e. drying, munaanansi (local drink), wine, and juice making. Energy is one of the main inputs required to achieve any of the processing methods. The aim of this research was to develop energy use profiles, gain insights into energy use reduction options, and to evaluate the applicability of renewable energies ...
Dissertation
Assessment of genetic diversity in local breeds
(2020-06)
The present study aimed at assessing genetic diversity in selected local livestock breeds in Northern Germany, and furthermore, examining some of the indices used in describing diversity in populations. The study begun with an assessment of genetic diversity in the German Angler (RVA) and Red-and-white dual-purpose (RDN) cattle breeds. Analyses of the RVA and RDN pedigrees, consisting of 93,078 and 184,358 records, respectively, revealed a number of Red Holstein (RH) sires that were influential in these breeds. Even ...
Teil eines Buches
Linguistic Norm in Linguistic Pragmatics
(De Gruyter, 2020)
In linguistic pragmatics norms can be seen as traditions that guide verbal interaction. In order to pin down the notion of tradition, we use a model of linguistic pragmatics that goes back to Eugenio Coseriu’s system of linguistic competence and to the concept of tradition elaborated by Ramón Menéndez Pidal, thus bringing together linguistics and philology. The functioning of norms as traditions is illustrated with two examples: with a routine of verbal politeness and with a narration style that is based on the aspect ...
Dissertation
Association of neighboring β-Strands to form the β-barrel structure of the voltage-dependent anion channel, human isoform 1 (hVDAC1) precedes membrane insertion and is largely driven by polar interactions between basic and acidic amino acid side-chains
(2020)
To date, all biophysical folding studies on β-barrel membrane proteins from outer membranes (OMPs) indicated a coupled mechanism of folding and membrane insertion. Most of these studies were performed with smaller OMPs from bacteria. Here we have investigated folding and insertion of a mitochondrial OMP, the voltage-dependent anion-selective channel (VDAC), human isoform 1 (hVDAC1). To examine whether folding and insertion are coupled for hVDAC1, the association of neighboring β-strands of the 19-stranded β-barrel ...
Dissertation
Energy Budget- and Temperature Index- based Calculations of Seasonal Mass Balances and Discharge in the Tropical Glacier Artesonraju and Artesoncocha Basin in the Cordillera Blanca,
Peru
(2020)
The core of the present Doctoral study deals with glacier simulations for calculating mass balance and discharge in the Artesonraju glacier and Artesoncocha basin, in the Cordillera Blanca (CB), Peru. For this purpose, two different models are used. One is an energy-model (EBM) which is physically based and uses energy fluxes measurements on the glaciers, whereas the other one is a temperature index model (TIM) which is empirical and uses mainly temperature and precipitation as its main input data.
An analysis of ...
Aufsatz
The effects of grain storage technologies on maize marketing behaviour of smallholder farmers in Zimbabwe
(2020-01-13)
This study investigated the effects of grain storage practices on smallholder farmers’ maize marketing behaviour using primary data collected from 413 random households in Makoni and Shamva Districts of Zimbabwe. The data was analysed using the ordered probit model and the study results revealed that storage practices had significant effects on the maize marketing behaviour of smallholder farmers. Storage using insecticide and traditional granary increased the chances of farmers to become net sellers of maize. Using ...