Doktorarbeiten

This thesis deals with the 2D material graphene, which has been the subject of intense research in recent years due to its unique properties. The main focus is on different ways to tune the properties of graphene. [...]

Plant root systems are essential for global food security. Their growth, however, is governed by a complex interplay of soil's physical, biological, and chemical properties and is critically limited by soil compaction. [...]

his dissertation explores the role of dynamic functional connectivity (dFC) as an intermediate phenotype linking neurobiological characteristics and clinical outcomes in psychotic and affective disorders. The thesis aims to reveal alterations in dFC in psychotic and affective patients, study the impact of neurobiology on static and dynamic FC patterns, and identify neurobiological processes which might contribute to static and dynamic FC changes in psychotic and affective disorder. [...]

In an environment as complex and unpredictable as our human society, we cannot merely rely on hard-wired reflexes and short-term incentives for successful behavior. Instead, our brain uses cognitive control to derive expectations from current and prior information and adapts strategically to changing demands. [...]

The functional organization of the human brain is based on neuronal connections (edges) between cortical regions (nodes), known as structural connectivity. This may become disrupted by tumor growth or multimodal treatments, leading to cognitive impairment. [...]

In order to interpret incoming sensory input effectively, the visual system integrates multiple sources of information from the surrounding environment. Although many perceptual processes are often assumed to operate automatically, accumulating evidence suggests that they rely on complex and dynamic mechanisms. [...]

The ever-increasing demand for data and computing power ignited by data driven technology raises the desire for a new generation of faster and more efficient computing devices. Furthermore, the sheer amount of data generated requires storage devices to pack information as dense as possible. [...]

This thesis investigates the variability of ecosystem processes—gross primary production (GPP), evapotranspiration (ET), and water-use efficiency (WUE)—in Europe under climate change, with a focus on their trends and responses to droughts from 1995 to 2018. The work uses three complementary data sources: satellite-based remote sensing, in situ eddy covariance observations (ICOS), and land surface model simulations with CLM5. [...]

Solid Oxide Cells (SOCs) are promising energy conversion devices with applications in both electricity generation and chemical fuel production. Fuel Electrode-Supported Cells (FESCs) particularly offer a robust architecture, but their performance and reliability are heavily dependent on the manufacturing process of a porous substrate material. [...]