Suche
Anzeige der Dokumente 1-10 von 45
Dissertation
Evaluation of efficacy of homeopathic and antibiotic treatment in scientific research and practice with focus on bovine mastitis
(2024)
The use of homeopathy and antibiotics in treatment have the same goal: to cure a diseased individual. The first choice should be the most effective treatment and only a repeated treatment success will justify its use. If the chosen treatment is not effective, unnecessary suffering of diseased animals, spreading of disease or chronification of mastitis will be the result. Additionally, in case of antibiotic use, an ineffective use will select and promote the prevalence of multi-resistant bacteria in the environment, ...
Dissertation
Fostering sustainable consumption through communication: Consumers’ appreciation of biodiversity-friendly pasture-based cattle husbandry
(2024-01)
Considering dramatic environmental changes, there is an evident necessity of a transition to more sustainable animal production that caters to societal demand for ethical production and consumption. The slow but steady shift in consumer demand for animal-friendly, environmentally, and socially re-sponsible animal products has been well documented over the past years. The overarching goal of this dissertation is to provide insights regarding consumer perceptions, acceptance, preferences and com-munication of ...
Working paper
Bringing heterodoxy back into a world of pessimism
(2024-01-29)
In this Extractivism Occasional Papers’ volume, we brought together two first-wave scholars working on structuralism, class and development, Luiz Carlos Bresser-Pereira and Hartmut Elsenhans, and upcoming scholars – Ingrid Harvord Kvangraven, Fernando Rugitsky and Johanna Siebert – who build on structuralist thinking to present their own take on the importance of revitalising it. Our project follows the Hegelian dialectics and seeks aufheben, in the sense of learning from the past, preserving what is valuable, and ...
Working paper
Searching for a substitute: Algeria and Venezuela as energy security alternatives for Europe?
(2024-01-26)
• Venezuela und Algerien sind für die Europäische Union potenzielle, zukünftige Energiepartner.
• Die EU steht vor einer doppelten Herausforderung: Sie muss kurzfristige Alternativen für Gaslieferungen finden und sich langfristig
einem green deal verpflichten. Dies erfordert einen grundlegenden Wandel der Zusammenarbeit zwischen EU mit ihren
Energielieferländern.
• Algerien verfügt über großes Potenzial erneuerbarer Energien, es mangelt ihnen jedoch an Technologie und Kapital. Eine EUAlgerien
Energiepartnerschäft ...
Dissertation
Dynamics of Norms in Decision-Making
(2024-01)
So far, there is a lack of understanding how norms change. The aim of the present dissertation was twofold: (1) addressing differences between change processes of different types of norms and (2) focusing more particularly on how norms are internalized. To study norm dynamics, a multi-method approach was chosen, combining theory, social simulation, and experimental research. In the theoretical contribution, a psychologically grounded conceptual model of norm change and decision-making was presented. Based on a refined ...
Working paper
Working Paper: Modeling Infection Risk in Local Public Transport
(2024)
To model the infection risk in local public transport, additional information on the personal contacts during a trip with local public transport as well as the contact duration with them is necessary. As morning student traffic in local public transport vehicles was assumed to hold a high infection risk during the COVID-19 pandemic, staggered school starting times were tested in the city of Herne in Germany. The data obtained during this time was used to create a calculation tool for the number of personal contacts ...
Working paper
Climate Change and Consumption Patterns in Latin America: The Urgency of a Structural Transformation
(2024-02)
• Climate change obstructs Latin America's development, affecting the economy, society, and the environment. A substantial investment is needed for the 2050-2070 deep decarbonization process.
• Latin America's unsustainable development in the last five decades has boosted consumption, employment, and poverty reduction but falls short in addressing chronic poverty and high-income concentration. This undermines economic dynamics and exposes society to climate change impacts.
• A just climate transition requires changes ...
Dissertation
A Unifying Theory for Runge-Kutta-like Time Integrators: Convergence and Stability
(2024)
The work deals with two major topics concerning the numerical analysis of Runge-Kutta-like (RK-like) methods, namely their stability and order of convergence. RK-like methods differ from additive RK methods in that their coefficients are allowed to depend on the solution and the step size. As a result of this, we also refer to them as non-standard additive RK (NSARK) methods. We motivate and introduce modified Patankar (MP) schemes as a subclass of NSARK methods and emphasize their importance. The first major part ...
Dissertation
Immobilization of Neodymium Complexes on Semiconductor Surfaces and Processing of GaAs-based Photonic Crystals
(2024)
Lanthanide ion luminescence exhibits characteristic narrow emission bands ranging from VIS to NIR along with relatively long emission lifetimes which makes them attractive for applications in lighting, sensing, and display technologies. The focus of this dissertation lies on the optical characterization of newly synthesized neodymium complexes bearing phosphonate ester ligands and the fabrication of photonic crystal (PhC) cavities. Micro-photoluminescence (PL) spectroscopy is used to investigate the NIR emission bands ...
Dissertation
New Approaches for the Quantification of Metabolic and Economic Trade-Offs Related to the Health and Longevity of Individual Dairy Cows
(2024)
Background: In dairy cows, negative associations between the genetic merit for milk yield and fitness traits as well as a lack of success in lowering the prevalence of production diseases have been noticed over the past 30 years across different production methods, herd sizes and countries. On the other hand, individual farms and individual cows within a farm succeed in simultaneously achieving high performance, low prevalence and high profitability, while others cannot cope with these challenges. Differences in milk ...