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Aufsatz
Food typology of traditional foods based on millet, sorghum and cowpea from the rural communes of north central region of Burkina Faso
(2023-07-31)
Food vulnerability is a growing plague in developing countries, neglecting local foods. Better knowledge of local foods is necessary to improve their consumption. The objective of this study is to identify the types of local millet, sorghum and cowpea foods in the North Central Region from a socio-cultural perspective. The methodology consisted of organizing 12 focus groups to respond to an individual questionnaire on the socio-cultural characteristics of participants and their knowledge of their millet, sorghum and ...
Aufsatz
Female farmers in the Galapagos: An invisible force
(2023-11-07)
Despite the crucial contributions of women to agriculture and food security, female farmers in the Galapagos Islands face persistent challenges that hinder the recognition and valuation of their work. Furthermore, the lack of gender-disaggregated data tailored to their local and contextual realities presents an ongoing challenge for evidence-based policy formulation, hampering the response to their specific needs and challenges. Taking a departure from the dominant quantitative approach in agricultural research, this ...
Konferenzveröffentlichung
Unionsrechtliche Maßnahmen zugunsten des beschleunigten Ausbaus von erneuerbaren Energien
(2023)
Bislang beschränken sich die Vorgaben der Richtlinie über erneuerbare Energien darauf, bestimmte Anteile erneuerbarer Energien am Energiemix vorzuschreiben. So sah Art. 3 im Jahr 2018 vor, den Anteil am Gesamtenergieverbrauch bis 2030 auf 32 % zu steigern. Art. 16 verlangt bislang vor allem die Einrichtung von Anlaufstellen, Regelungstransparenz und eine Verfahrensdauer von zwei, ausnahmsweise drei Jahren. Inhaltliche Vorgaben für Genehmigungsverfahren fehlen dagegen bislang noch.
In jüngster Zeit unternimmt die ...
Aufsatz
Influence of Surface Mechanical Attrition Treatment (SMAT) on Microstructure, Tensile and Low-Cycle Fatigue Behavior of Additively Manufactured Stainless Steel 316L
(2023-08-29)
Direct Energy Deposition (DED), as one common type of additive manufacturing, is capable of fabricating metallic components close to net-shape with complex geometry. Surface mechanical attrition treatment (SMAT) is an advanced surface treatment technology which is able to yield a nanostructured surface layer characterized by compressive residual stresses and work hardening, thereby improving the fatigue performances of metallic specimens. In the present study, stainless steel 316L specimens were fabricated by DED and ...
Dissertation
Pathogenic Mutations in Catalytic Subunit Isoforms of the cAMP-Dependent Protein Kinase
(2023)
Protein kinase A (PKA) is an integral part in a myriad of cellular pathways and a main effector of the second messenger cAMP. Since its discovery in the late 1960s, PKA has become one of the best-studied eukaryotic protein kinases in terms of enzymatic and structural features. Pathological implications of PKA have just started to emerge. There are three main isoforms (α, β, γ) of the catalytic subunit of PKA (PKA-C) which constitute a holoenzyme (R2C2) by association with a regulatory subunit (PKA-R) dimer. While ...
Dissertation
Orometry, Intrinsic Dimensionality and Learning: Novel Insights into Network Data
(2023-11)
Today, networks are an integral part of our world. Let it be real-life friendship networks or social connections that are based on social media. In this thesis, we contribute to the understanding of networks by studying networks from three different perspectives. First, we adapt notions and concepts from orometry to metric data and networks to gain novel insights from a local perspective. Specifically, we study measures of local outstandingness and propose concepts to derive small hierarchies from larger networks. ...
Dissertation
Management effects on soil microbial functions at a South-Indian rural-urban interface
(2023-06)
Urbanization leads to effects on many aspects of ecosystems and societies. Among the affected are agricultural systems and, specifically, soils. One of the most evident pathways of urbanization effects on agricultural soils is through an increased demand for agricultural commodities requiring agricultural intensification, hence, changes in management practices that alter soils.
In this context, the purpose of this study was to understand how the main agricultural management practices taking place in urbanizing ...
Aufsatz
Cooperatives as instruments of smallholder development: Evidence from banana, cocoa, coffee, and palm oil producers in Peru
(2023-11)
Collective action in the agricultural sector of Peru started in the form of agrarian production cooperatives around 1969. Following the collapse of the collectivisation program in the 1980s, external stakeholders helped to form marketing cooperatives in select sectors to discourage coca leaf production. Nowadays, cooperatives are only active in four sectors: banana, cocoa, coffee, and palm oil. Case study evidence of the performance of cooperatives in Peru is mixed, which raises the need for applied research to inform ...
Dissertation
Asymmetric magnetization reversal processes in exchange-biased microstructures
(2023)
Over the last decades, the exchange bias (EB) effect has captured the attention of the research community striving for high-density logic memory devices and sensitive sensor technologies based on bi-, multilayered, or patterned magnetic thin film systems. Macroscopically, the EB manifests in a horizontal shift of the ferromagnetic remagnetization loop and an enhancement of the coercivity, both connected to the induced unidirectional anisotropy (UDA) at the exchange-coupled ferromagnetic/antiferromagnetic interface. ...
Aufsatz
Newly implemented crop-livestock-forest systems increase available water and aeration in soils of the Brazilian Savannah
(2023-11-21)
There is a growing demand for cropping systems that guarantee food production by improving the use efficiency of natural resources such as soil and water. The crop-livestock-forest (CLF) system is a form of sustainable intensification in which biodiversity and yields are increased on the same area. In this study, the physical-hydric properties of a Ferralsol and Cambisol in Central Brazil within the Savannah biome (Cerrado) were investigated 2 and 1 year after implementation of CLF systems. Soil samples were collected ...