Naturwissenschaften, Mathematik und Informatik
Neueste Zugänge
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Sustainable Ruthenium- and Rhodium-Catalyzed C−H Activations with Photochemistry and Electrochemistry
(2024-03-18)Cross-coupling chemistry stands out as a fundamental tool in synthetic organic chemistry for forging C‒C and C‒Het bonds. However, the necessity for substrate prefunctionalization imposes significant sustainability challenges ... -
Towards an Effective Synthesis of Functionalized Heptacyclo[6.6.0.02,6.03,13.04,11.05,9.010,14]tetradecane
(2024-03-14)A reassessment of the Rh-catalyzed dimerization of norbornadiene to generate heptacyclo[6.6.0.02,6.03,13.04,11.05,9.010,14]tetradecane (HCTD), a carbocyclic cage compound, has been conducted introducing novel π-acceptor ... -
Coupled dynamics of the spread of COVID-19, interventions and human behaviour
(2024-03-14)The COVID-19 pandemic has presented an unprecedented challenge to global health, prompting a need for comprehensive research into the coupled dynamics of virus spread, intervention strategies, and human behavior. This ... -
The prothoracic repellent glands of stick and leaf insects: Reconstructing the morphological and chemical evolution of an elaborate arthropod defensive system
(2024-03-11)Stick and leaf insects (Phasmatodea) form a diverse lineage of large herbivorous arthropods inhabiting predominantly tropical and subtropical regions. These insects are well known for their impressing camouflage capabilities, ... -
The complex formation of RNase P and RNase MRP in Saccharomyces cerevisiae
(2024-03-06)Ribonucleoproteins comprise a class of complexes that consist of RNAs and proteins. Riobozymes are catalytically active ribonucleoproteins that play a key role in the maturation of various RNAs. A prominent example is ... -
Invariants of Kähler manifolds and Generalized Seiberg-Witten Equations
(2024-03-06)The thesis explores the generalized Seiberg-Witten equations, a gauge theoretic differential equation arising in physics by coupling a non-linear spinor to a connection. The study involves an analysis of the solution space ... -
Kinetics of free radical homo- and copolymerisations investigated with pulsed laser methods
(2024-03-06)Free-radical polymerisation is the most important polymerisation process due to its simplicity and robustness. It is therefore necessary to understand the kinetics of the involved reactions in order to plan a polymerisation, ... -
Loess-palaeosol sections along the Rhône Rift Valley (SE France) as Late Quaternary palaeoenvironmental archives
(2024-03-05)Loess-palaeosol sections (LPSs) represent ideal archives for gaining knowledge of past climatic conditions and changes, as their intermediate loess deposits and buried palaeosols reflect climate conditions of their ... -
Chemical Synthesis of Alpha-Synuclein Proteins via Solid-Phase Peptide Synthesis and Native Chemical Ligation
(2024-03-05)Parts of this chapter have already been published and have been adapted from the original publication: L. M. Gatzemeier, F. Meyer, U. Diederichsen, T. F. Outeiro, Chemical Synthesis of Alpha-Synuclein Proteins via Solid-Phase ... -
From Points to Forests - The potential of 3D point clouds to evaluate the structural complexity of differently managed beech forests
(2024-03-04)Climate change is leading to global shifts that can create a particular challenge for the stability and vitality of forest ecosystems. In the temperate forests of Central Europe, the natural forest vegetation is dominated ... -
The Spectra on Lie Groups and Its Application to twisted L2-Invariants
(2024-02-29)We computed spectra of various $G$-invariant differential operators on the universal cover of 2x2 unimodular groups. This was achieved by applying tools from harmonic analysis/representation theory to corresponding groups. ... -
Sustainable mobility with bi-modal public transport
(2024-02-27)The escalating problems of pollution, traffic congestion, resource consumption, and environmental degradation are becoming increasingly significant due to the growing demand for urban mobility. This mounting crisis is ... -
Elliptic curves, modular forms, and the associated exponential sums
(2024-02-27)This thesis focuses on the various arithmetic aspects of elliptic curves and modular forms. Employing the exponential sum estimates obtained from sum-product estimates for finite fields, we estimate exponential sums linked ... -
Optimization of experimental procedures for the assessment of auditory cognition in non human primates
(2024-02-23)In a loose sense, the exceptional development of technology in the past three decades has allowed researchers to drastically improve the quality and quantity of behavioral data. However, the methodological advances achieved ... -
Effects of solid additives and inorganic ligands on the efficiency of metallic iron- based water treatment system
(2024-02-23)Metallic iron (Fe0) or zero-valent iron (ZVI) has been extensively used for water remediation during the past three decades. It has been proven to be effective in treating waters polluted with chlorinated aliphatics, dyes, ... -
Of Resonances and Radicals – Hydrate Studies for Benchmarking
(2024-02-22)Theory experiment benchmarks are a valuable tool to improve quantum numerical methods. To provide experimental data suitable for benchmarking, this work focuses on the investigation of jet cooled hydrate clusters using ... -
Functional traits of vascular plants on islands across spatial scales
(2024-02-22)Islands have unique and disharmonic floras, resulting from the filtering effects of dispersal and climate and, in some cases, their high evolutionary diversification rates. Due to their small size and distinct boundaries, ... -
Analyzing Smallholder Farmers Performance - Farmer Typology, Technical Efficiency, Market participation, Policies and Management Practices Evidence from Limpopo Region of South Africa
(2024-02-22)Sub-Saharan Africa's population is projected to grow to almost double its population by mid- century, leading to more demand for food and agricultural products. As the main source of food and livelihood, the agricultural ... -
Mechanistic differences in mouse models of heart failure with preserved ejection fraction
(2024-02-21)Heart failure (HF) is the most potent epidemic of the 21st century. Based on ejection fraction (EF), HF has been classified into two distinct entities; heart failure with reduced EF (HFrEF) and heart failure with preserved ... -
Magneto-thermal conductivity of perovskite manganite films and exchange-spring coupled superlattices
(2024-02-21)In this thesis, thin colossal magnetoresistive perovskite manganite films and superlattices forming an exchange spring magnet were studied regarding their magneto-thermal conductivity. Using the metalorganic aerosol ...