Institution
University of Bonn
Recent research
- Society & EconomicsOpen access
Deforestation‐Free Cocoa: Implications for Organizational Adaptation and Compliance Costs
ABSTRACT Mandatory due diligence is an emerging policy instrument for addressing global environmental challenges, yet how such regulations reshape firm‐level organizational structures and generate compliance costs remains poorly understood. Drawing on organizational theory, this...
- Physics & SpaceOpen access
Boomeranging through the Earth: When free fall doesn't maximize proper time
In teaching special relativity, John Bell emphasized the value of pre-relativistic intuitions. His famous spaceship puzzle showed that, in certain cases, the older heuristics of Lorentz and FitzGerald get the right answer to a genuinely relativistic problem more reliably than the...
- BiologyOpen access
Dental spittoon biofilms as reservoirs of antimicrobial resistance: a longitudinal multi-omics study
ABSTRACT Dental chair spittoons are chronically exposed to saliva, aerosols, intermittent water flow, and chemical disinfectants, yet their biofilm ecology and antimicrobial resistance (AMR) dynamics remain poorly defined. We applied longitudinal 16S rRNA gene sequencing, shotgun...
- BiologyOpen access
Background In routine clinical practice in Germany, the national genetic testing landscape for adults has changed in recent years from the testing of individual candidate genes and gene panels and stepped approaches utilizing different methodologies to a preponderance of whole ex...
- Health & MedicineOpen access
This software record contains the custom R scripts and curated study-level tables used to reproduce the revised Bayesian network meta-analysis reported in “Comparative Network Meta-Analysis of Immunotherapy and Targeted Agents for Glioblastoma Survival and Response.” The workflow...
- Health & MedicineOpen access
This software record contains the custom R scripts and curated study-level tables used to reproduce the revised Bayesian network meta-analysis reported in “Comparative Network Meta-Analysis of Immunotherapy and Targeted Agents for Glioblastoma Survival and Response.” The workflow...
- Biology
Abstract Terpene cyclases (TCs) typically transform acyclic oligoprenyl pyrophosphates through carbocationic cyclization cascades. However, recently discovered bacterial pathways generate compact, cyclized and stereochemically defined noncanonical intermediates through methyltran...
- BiologyOpen access
Abstract Insects are phenomenally diverse, yet their evolutionary origins remain poorly understood. The fossil Rhyniognatha hirsti from the Early Devonian Rhynie chert (ca. 408 Ma) has been widely accepted as the earliest insect and a crown-group pterygote (flying insect), based...
- Climate & EnvironmentOpen access
Abstract New weapons such as the bow and arrow often emerge alongside rising population densities and interpersonal conflict. We test this generalization in southern Peru during the violent Final Formative (400–1 BCE ) with measurements of 200 obsidian projectile points anchored...
- AI & ComputingOpen access
Product separability in central extensions
We show that a central extension of a subgroup-separable locally quasiconvex hyperbolic group is product separable, so long as it is subgroup separable. We also establish that a central extension of a double coset separable group by a finitely generated group is double coset sepa...
- Climate & EnvironmentOpen access
Abstract Background Ethno-ornithological knowledge plays a key role in the conservation and management of birds and their habitats. However, the cultural roles and significance of birds in Ethiopia, as well as the threats to their survival within human cultural contexts remain la...
- Health & MedicineOpen access
ABSTRACT Objectives To identify local and systemic risk factors/indicators for dental biofilm‐induced gingivitis (DB‐GI) and to summarize evidence for their control. Methods A systematic review was undertaken following Preferred Reporting Items for Systematic Review and Meta‐Anal...
- Materials & EnergyOpen access
Aromatic Molecular Emitters in a Hexagonal Boron Nitride Stack
Abstract Single polycyclic aromatic hydrocarbon molecules embedded in organic matrices are excellent narrow line width quantum emitters. Extending this host–guest setting to van der Waals materials offers the opportunity to combine the preeminent properties of molecular emitters...
- BiologyOpen access
Abstract The growing demand for sustainable crop management has intensified interest in protein hydrolysates (PHs) as bioactive biostimulants. While the efficacy of foliar PH applications has been documented in tomato at concentrations of 2.5 mL/L and above, or through combined f...
- Health & MedicineOpen access
Abstract Introduction A Core Outcome Set (COS) can harmonize outcome reporting. For medication review (MR) studies targeting older, multi-morbid patients with polypharmacy, a COS with seven outcomes is available: Health-related Quality of Life (HRQoL), pain relief, overuse, under...
- Physics & SpaceOpen access
Signatures of high-frequency gravitational waves in electromagnetic cavities
A bstract Similar to axions, gravitational waves (GWs) can induce oscillating electromagnetic fields inside electromagnetic cavities. We explore their experimental sensitivity to monochromatic and non-monochromatic GW signals, using the total deposited energy as a primary measure...
- Materials & EnergyOpen access
Light-Enhanced Synthesis of TiSb2 and TiBi2 Metallacycles
Abstract The synthesis of small metallacycles of early transition metals and heavy pnictogens has been primarily achieved by reductive coupling of the pnictane moiety with a transition metal fragment. Herein, we report a light-enhanced synthesis of titanocene Sb2 and Bi2 metallac...
- Society & Economics
International Human Capital Mobility Dynamics: A Continental Perspective
This article examines the developmental implications of skilled international migration across global regions, focusing on GDP per capita and the human development index as indicators of economic performance and welfare outcomes. Using a panel data set covering multiple continent...
- Health & Medicine
ABSTRACT Introduction Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common supraventricular tachycardia and is generally considered benign, with excellent outcomes following catheter ablation. However, data on procedural safety and efficacy in very elderly pati...
- Climate & EnvironmentOpen access
Faunal remains constitute one of the main sources of evidence for reconstructing foodways and economic practices in Phoenician societies. Archaeological research conducted over recent decades in the Iberian Peninsula has highlighted their importance for understanding food product...