# Browsing by Title

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• (2021-09-17)
Aberrant endocannabinoid (eCB) signaling has been implicated in the pathophysiology of different stress-related psychiatric diseases, such as schizophrenia, depression, and anxiety disorders. Such eCB signaling is triggered ...
• (2019-11-22)
Canopy gap research in European beech-dominated forests has experienced a remarkable upswing in the last decades. It contributes to answering both fundamental ecological questions and to designing silvicultural interventions ...
• (2010-09-15)
The present dissertation compares the motives and values associated with the purchase of organic food in Germany and in Mexico. After an international literature review enough evidence ...
• (2008-08-06)
Actin, a protein and major component of the cytoskeleton, is organized in vivo into filaments, bundles, and networks which play an important role in mechanical stability and cellular motility. ...
• (2015-10-02)
The myelin sheath is a specialized membranous structure that facilitates rapid signal conduction along axonal segments. During central nervous system development, it is formed by oligodendrocytes that extend motile and ...
• (2019-09-20)
In order to allow robots to act autonomously it is crucial that they do not only describe their environment accurately but also identify how to interact with their surroundings. While we witnessed tremendous progress in ...
• (2010-11-02)
Abies grandis is a fast growing coniferous tree with a high potential for sustainable wood production and applications in the wood product industry. However, for the possible applications ...
• (2014-09-25)
Meningitis, meningoencephalitis and sepsis are severe diseases causing many deaths all over the world every year. Escherichia coli (E. coli) is the most common Gram-negative bacterium causing neonatal meningitis and sepsis ...
• (2017-04-06)
This work comprises the synthesis and characterization of novel pyrazolate-bridged bimetallic iron complexes with bis(pentadentate) ligand scaffolds and the activation of dioxygen and nitric oxide at their diferrous sites. ...
• (2016-04-04)
The influenza virus hemagglutinin (HA) mediates viral entry into target cells. HA is synthesized as an inactive precursor and depends on proteolytic processing by host cell proteases to become active. TMPRSS2, a member of ...
• (2018-07-19)
The complex mechanical properties of a living cell are not only a function of its structural components but also of the organizational super-structure and the dynamic interconnection of filaments, proteins and the plasma ...
• (2002-12-13)
In order to delay the laminar-turbulent transition in a boundary layer flow, the cancellation of 2D- and 3D instability waves by artificially excited counter-disturbances is investigated. ...
• (2021-07-02)
Active matter is a collection of constituent elements that constantly consume energy, convert it to mechanical work, and interact with their counterparts. These materials operate out of equilibrium and exhibit fascinating ...
• (2020-12-18)
Essential physiological processes, such as cell motility, adhesion, growth and differentiation are determined by the ability of cells to modify their mechanical properties. Consequently, both the vitality as well as ...
• (2012-10-01)
High concentrations of Activin A and Follistatin can be found in the cerebrospinal fluid (CSF) of patients with bacterial meningitis. Patients suffering from a sepsis have increased concentrations of Activin A and Follistatin ...
• (2018-03-20)
Imaging synaptic activity in the form of calcium transients occurring in dendritic spines is advancing our understanding of nerve cell function beyond what can be achieved using electrophysiological methods alone. I have ...
• (2017-01-13)
Investors use social media in order to access and exchange information regarding recent events in the business and financial domain. Social media support investors to reduce uncertainty about the implications and the ...
• (2021-11-16)
The Calar Alto high-Resolution search for M dwarfs with Exo-earths with Near-infrared and optical Echelle Spectrographs (CARMENES) has been searching and finding planets for five years by looking for periodic Doppler-shift ...
• (2017-08-09)
Within the last decades it was discovered that the cellular microenvironment plays an important role in cellular processes and cell fate can be directed by mechanical properties of the extracellular matrix (ECM), which can ...
• (2008-12-02)
All metabolic processes involving fatty acids are preceded by the activation of the fatty acid to form a thioester derivative. Activation by acyl-CoA synthetase is well established whereas ...
• (2020-06-12)
Pyrophilous insects are known to invade recently burnt habitats for food, mating and oviposition. They can approach fires due to their ability to recognize fire-specific volatile organic compounds (VOCs). Moreover, some ...
• (2014-06-25)
This study is based on a conceptual analysis of climate-induced stresses as well as the revision of management plans of protected areas across the Americas, with a particular focus on the protected areas of the Santa Cruz ...
• (2011-06-14)
On the global scale an increase in frequency and magnitude of potentially hazardous natural events has to be expected. Regardless of how such changes are attributed, as human systems become ...
• (2010-04-29)
Seeing, at its simplest, is merely the registering of light and some reaction to it. Primate visual perception is not only a passive, feedforward absorption of information of the surrounding ...
• (2002-07-02)
Nest predation is one of the main selective forces in life history evolution of songbirds. On the one hand natural selection can favour traits which lower predation, e.g. by cryptic behaviour ...
• (2012-07-24)
A sublimation cell for the Fourier transform infrared (FTIR) microspectroscopic characterization of microcrystals was constructed and tested on methyl mandelate and mandelic acid. Spectral assignments and the determination ...
• (2018-12-07)
Cardiovascular diseases are diseases of the heart and blood vessels constituting a major cause of death and disability worldwide. Cardiovascular drug development aims to deliver efficacious drugs to address the public ...
• (2019-01-16)
In this thesis we are interested in the topic of sparse digital image representation through adaptive multiscale basis. We develop for this two numerical methods: the Region Based Easy Path Wavelet Transform and the Haardict. ...
• (2015-06-12)
The control of multi-legged animal walking is a neuromechanical process where the nervous system produces neural signals to activate the muscles for driving the skeletons (e.g., legs and joints). To model and achieve this ...
• (2020-02-06)
Optical nanoscopy allows for highly specific imaging of biological tissue, cellular components and even single molecules and has therefore become an integral part of modern biomedical research. In STED microscopy, being ...
• (2021-04-06)
This thesis considers two different adaptive recovery concepts. The first concept is concerned with proximity operators intertwined between an injective linear operator with bounded range and its pseudoinverse. A prominent ...
• (2011-07-15)
This thesis is concerned with adaptive wavelet methods for the approximation of images. First, the Easy-Path-Wavelet-Transform (EPWT) is introduced. The EPWT works as follows. We determine ...
• (2021-02-11)
In pediatric cardiology and cardiology of adults with congenital heart disease, indication for implantation of an implantable cardioverter-defibrillator (ICD) is often based on underlying diseases like primarily electrical ...
• (2012-06-06)
Activated microglia is considered to be involved in the progression of Alzheimer´s dementia (AD). We investigated the effect of Aβ40 and exogenous agonists of TLR1/2 [Pam3CSK4] and TLR4 [LPS] on neurons in primary ...
• (2012-08-30)
X-ray microscopy has emerged as a powerful and versatile imaging technique in many fields of science over the last years, offering insights in opaque media at high spatial resolution. A major challenge remains the ...
• (2004-09-27)
The FK506-binding proteins (FKBPs) FKBP12 and FKBP12.6 influence the Ca2+-release from the sarcoplasmic reticulum (SR) in skeletal and heart muscle, respectively, via regulation of the SR ...
• (2016-02-03)
The distribution and density of neuronal voltage-gated sodium channels (VGSCs) is important for neuronal excitability, maturation and plasticity. High density of VGSCs in the axon initial segment (AIS) depends on the ...
• (2009-06-03)
Introduction. In South Africa, the HIV epidemic has risen sharply in numbers over the past decade, and a growing number of children are treated with antiretroviral therapy. This study aimed ...
• (2011-05-06)
Verticillium longisporum, a soil-borne plant pathogen, is an emerging problem for oilseed rape and other crucifers. The mechanism of infection through plant roots and the evolutionary origin of this fungus are still not ...
• (2018-03-19)
In this thesis, a dinickel(II) dihydride complex was used for small molecules activation, such as H2, O2, N2, S8, CO and so on. Here, we present the results of these works and analysis these results by various spectroscopies.
• (2016-02-22)
The rotation of the Earth around its axis results in a repetitive succession of day and night. The profound environmental changes associated with the day-night cycle drove most organisms to evolve endogenous timekeepers ...
• (2012-05-22)
In this thesis, mechanisms for the onset of obesity were investigated. Expression studies were performed to analyse the obesity related factor DORin an animal model and a possible effect of translational control in early ...
• (2012-02-15)
Methods: This study includes data of 462 children and adolescents (219 girls, mean age 10,53 years; 243 boys, mean age 11,07 years), collected between March 2005 and Febuary 2008 ...
• (2012-08-15)
This thesis presents the construction of a geometrically nonlinear shear-deformable (Cosserat type) shell model by methods from discrete differential geometry (DDG). The model aims at applications in real-time simulations ...
• (2017-03-03)
We retrospectively analyzed the therapeutical outcome of patients with locally advanced rectal carcinoma, treated with postoperative radiochemotherapy. Our aim was to evaluate the efficiancy of the treatment performed at ...
• (2011-08-31)
The aim of this research is to understand how IT executives of different countries implement and perceive IT operational process improvement frameworks. We examine if IT operational frameworks, ...
• (2012-09-06)
The latest turmoil of production and price volatility in the global food sector has put agriculture back to the top of the development agenda. Population growth, changing consumer preferences, bioenergy demand and climate ...
• (2008-01-10)
We study the AdS/CFT correspondence at the example of the renormalization group IR and UV fixpoint theories of a Euclidean O(N)-symmetric vector field theory with $(\underline \phi^2)^2$ interaction in 2 dimensions. These ...
• (2017-08-23)
Super-resolution fluorescence techniques enable the study of structures smaller than the diffraction limit with visible light microscopy. Their introduction and development within the last two decades opened up the ...
• (2019-03-26)
Well-defined, end-functional polyethylene (PE) was synthesized in a catalyzed chain growth (CCG) polymerization and applied in novel synthetic routes for PE modified surfaces as well as in the manufacturing of multifunctional ...
• (2019-09-12)
In last decades, super-resolution fluorescence microscopy has seen its great development. Many super-resolution techniques are developed: the non-linear super-resolution techniques such as STED, PALM/STROM have provided ...
• (2008-10-28)
In magnetic resonance imaging (MRI), the received signal corresponds to the Fourier transform of the object's spin density, which can be sampled selectively by switching time varying gradient ...
• (2013-11-06)
The scope of this thesis was to investigate organometallic compounds by advanced solution state NMR methods in order to build a bridge from known solid state structures to their behaviour in solution. Since these reagents ...
• (2017-06-28)
Nuclear magnetic resonance (NMR) techniques have been developed and employed to study small molecules in solution. A) Slice-selective excitation (SSE) enables the acquisition of spatially resolved spectra. This has been ...
• (2021-05-17)
Adequate feeding of lactating cows is particularly challenging for high-performing animals. In this respect, subacute ruminal acidosis (SARA) is considered the most important nutritional disease. Its emergence is promoted ...
• (2019-11-18)
Texture analysis, i.e. the analysis of the crystallographic preferred orientations of minerals in rocks, contributes to the understanding of the deformation history and physical properties of rocks. Methods generally applied ...
• (2017-09-12)
The aim of this thesis is to demonstrate that x-ray waveguide optics can be gen- eralized from a single guiding film to an array of planar waveguides, enabling more complex and controllable phenomena of field propagation ...
• (2017-12-22)
This dissertation presents four independent papers that advance experimental methods and test theories on saving using experimentally elicited characteristics. The first two papers test two behavioral theories on ...
• (2015-10-23)
In the present thesis, various novel iodine-mediated reversible-deactivation radical polymerization (RDRP) techniques were investigated. In addition, effects of instrumental band broadening (BB) in size-exclusion chromatography ...
• (2021-01-07)
High-speed 3D optical microscopy is an indispensable requirement in studying rapid processes like signaling in neuronal networks, flagellar motion, or complex motion of living and highly dynamic subcellular components. ...