A5003732002- Advanced Statistical Modeling Techniques
- Psychometric Methodologies and Testing
- Statistical Methods and Bayesian Inference
- Fiber-reinforced polymer composites
- Surface Modification and Superhydrophobicity
- Media Influence and Politics
- Misinformation and Its Impacts
- Topic Modeling
- Gender, Feminism, and Media
- Additive Manufacturing and 3D Printing Technologies
- Fire effects on concrete materials
- Sexuality, Behavior, and Technology
- Manufacturing Process and Optimization
- Advanced Causal Inference Techniques
- Sex work and related issues
- Microwave and Dielectric Measurement Techniques
- Psychology of Moral and Emotional Judgment
- Silicone and Siloxane Chemistry
- Social Media and Politics
- Advanced Antenna and Metasurface Technologies
- Innovations in Concrete and Construction Materials
- Advanced Sensor and Energy Harvesting Materials
- Adhesion, Friction, and Surface Interactions
- Evaluation and Performance Assessment
- Marriage and Sexual Relationships
Wehrwissenschaftliches Institut für Werk- und Betriebsstoffe
2019-2025
University of Zurich
2021-2023
King's College London
2023
Johannes Gutenberg University Mainz
2020-2022
Wehrwissenschaftliche Institut für Schutztechnologien
2022
Bundeswehrkrankenhaus
2021
Universität der Bundeswehr München
2019
Research suggests that belief in conspiracy theories (CT) stems from basic psychological mechanisms and is linked to other systems (e.g., religious beliefs). While previous research has extensively examined individual contextual variables associated with CT beliefs, it not yet investigated the role of culture. In current research, we tested, based on a situated cultural cognition perspective, extent which culture predicts beliefs. Using Hofstede's model values, three nation‐level analyses...
Abstract Despite the lack of evidence for negative health effects masturbation, abstinence from masturbation is frequently recommended as a strategy to improve one’s sexual self-regulation. We adopted framework perceived problems with pornography collect first hints about whether stems psychological and behavioral “addiction” or conflicting attitudes. In an online questionnaire survey recruited via non-thematic Reddit thread ( n = 1063), most participants reported that they had tried be...
Abstract The Wald, likelihood ratio, score, and the recently proposed gradient statistics can be used to assess a broad range of hypotheses in item response theory models, for instance, check overall model fit or detect differential functioning. We introduce new methods power analysis sample size planning that applied when marginal maximum estimation is used. This allows application variety IRT which are commonly practice, e.g., large-scale educational assessments. An analytical method...
This study investigates one-sided thermal damage of carbon fiber reinforced polymers (CFRP) by means depth resolved infrared spectroscopy, tomography and mechanical testing. All CFRP samples are thermally irradiated at one side with a heat flux 50 kW/m 2 over various time intervals. ATR-FTIR spectroscopy along ground incline plane through the sample allows chemical characterization degradation polymer matrix into depth. Developing delaminations observed depth-resolved gray-value-analysis...
The planning of adequately powered research designs increasingly goes beyond determining a suitable sample size. More challenging scenarios demand simultaneous tuning multiple design parameter dimensions and can only be addressed using Monte Carlo simulation if no analytical approach is available. In addition, cost considerations, for example, in terms monetary costs, are relevant target optimization. this context, optimal parameters imply desired level power at minimum or maximum threshold....
Abstract A common challenge in designing empirical studies is determining an appropriate sample size. When more complex models are used, estimates of power can only be obtained using Monte Carlo simulations. In this tutorial, we introduce the R package to perform simulation-based analysis based on surrogate modeling. Surrogate modeling a powerful tool guiding search for study design parameters that imply desired or meet cost threshold (e.g., terms monetary cost). used optimal allocation when...
We compared different commercially available materials that are 3D-printable for their suitability making microwave absorbers by means of additive manufacturing, i.e., 3D printing. For this, we determined complex permittivity, and, if applicable, the permeability. They responsible RF losses within material therefore, determine its usefulness as an absorber material. Further, made SEM (scanning electron microscope) images samples showing filling have been used to achieve absorbing properties.
Abstract The successful use of components produced by selective laser sintering as a rapid manufacturing process requires comprehensive understanding the material. In this study, effect specimen build orientation on mechanical properties laser-sintered polyamide 12 was investigated in detail. Samples were printed with an 0°, 15°, 45°, and 90° to platform. addition quasi-static tensile tests, creep tests under different loads (5 MPa, 10 15 20 MPa) for times (10 h 1000 h) without relaxation...
Research suggests that belief in conspiracy theories (CT) stems from basic psychological mechanisms and is linked to other systems (e.g. religious beliefs). While previous research has extensively examined individual contextual variables associated with CT beliefs, it not yet investigated the role of culture. In current research, we tested, based on a situated cultural cognition perspective, extent which culture predicts beliefs. Using Hofstede’s model values, three nation-level analyses...
Peel plies can be used during the manufacture of fibre-reinforced plastics for two reasons: to protect surface transport and storing parts as well subsequent work steps, such adhesive bonding, removal peel ply result in bondable with required characteristics. However, use is not straightforward. It difficult remove a produced by altered terms roughness elemental composition. In present work, influence fluorine-based release agents on joining carbon fibre reinforced composites investigated....
A common challenge in designing empirical studies is determining an appropriate sample size. When more complex models are used, estimates of power can only be obtained using Monte Carlo simulations. In this tutorial, we introduce the R package mlpwr to perform simulation-based analysis based on surrogate modeling. Surrogate modeling a powerful tool guide search for study design parameters that imply desired or meet cost threshold (e.g., terms monetary cost). used optimal allocation when...
There is an ongoing effort to develop feature selection algorithms improve interpretability, reduce computational resources, and minimize overfitting in predictive models. Neural networks stand out as architectures on which build methods, recently, neuron pruning regrowth have emerged from the sparse neural network literature promising new tools. We introduce RelChaNet, a novel lightweight algorithm that uses input layer of dense network. For pruning, gradient sum metric measures relative...
Abstract In this study, structural, mechanical, and chemical changes of one‐sided thermally loaded carbon fiber reinforced polymers (CFRPs) are investigated. The aim is to test reliably predict residual strength delamination depth by using infrared spectroscopy. CFRP different thicknesses (HexPly® 8552/IM7) were irradiated at varying heat fluxes over various time intervals. inhomogeneously distributed matrix degradation was analyzed means attenuated total reflection Fourier transform...
The planning of adequately powered research designs increasingly goes beyond determining a suitable sample size. More challenging scenarios demand simultaneous tuning multiple design parameter dimensions and can only be addressed using Monte Carlo simulation if no analytical approach is available. In addition, cost considerations, e.g., in terms monetary costs, are relevant target for optimization. this context, optimal parameters imply desired level power at minimum or maximum threshold. We...
The Wald, likelihood ratio, score and the recently proposed gradient statistics can be used to assess a broad range of hypotheses in item response theory models, for instance, check overall model fit or detect differential functioning. We introduce new methods power analysis sample size planning that applied when marginal maximum estimation is used. This avails application variety IRT which are increasingly practice, e.g., large-scale educational assessments. An analytical method utilizes...
Objective: Sample size calculation is an essential step in most data-based disciplines. Large enough samples ensure representativeness of the population and determine precision estimates. This true for quantitative studies, including those that employ machine learning methods, such as natural language processing, where free-text used to generate predictions classify instances text. Within healthcare domain, lack sufficient corpora previously collected data can be a limiting factor when...
Sample size calculation is an essential step in most data-based disciplines. Large enough samples ensure representativeness of the population and determine precision estimates. This true for quantitative studies, including those that employ machine learning methods, such as natural language processing, where free-text used to generate predictions classify instances text. Within healthcare domain, lack sufficient corpora previously collected data can be a limiting factor when determining...
Abstract The successful use of components, produced by selective laser sintering as a rapid manufacturing process, requires comprehensive understanding the material. In this study, effect specimen build orientation on mechanical properties sintered polyamide 12 was investigated in detail. Samples were printed with an 0°, 15°, 45° and 90° to platform. Additionally quasi-static tensile tests, Creep tests under different loads (5 MPa, 10 15 MPa 20 MPa) for times (10 hours 1,000 hours) without...