A5087462131- Advanced Statistical Methods and Models
- Advanced Statistical Process Monitoring
- Optimal Experimental Design Methods
- Statistical Methods and Inference
- Atomic and Molecular Physics
- Probabilistic and Robust Engineering Design
- Advanced Chemical Physics Studies
- Statistical Distribution Estimation and Applications
- Structural Health Monitoring Techniques
- Physics and Engineering Research Articles
- Sports Science and Education
- Fault Detection and Control Systems
- Control Systems and Identification
- Statistical Methods and Bayesian Inference
- Nuclear physics research studies
- Laser-Matter Interactions and Applications
- Spectroscopy and Chemometric Analyses
- Hepatocellular Carcinoma Treatment and Prognosis
- International Development and Aid
- Semantic Web and Ontologies
- Civil and Structural Engineering Research
- Bayesian Methods and Mixture Models
- Rare-earth and actinide compounds
- Morphological variations and asymmetry
- Model-Driven Software Engineering Techniques
TU Dortmund University
2014-2024
Carl von Ossietzky Universität Oldenburg
2001-2023
Heidelberg University
2023
University Hospital Heidelberg
2023
Medizinische Fakultät Mannheim
2023
Freie Universität Berlin
1994-2022
Ulrich Medical (Germany)
2022
University of Bremen
2009-2022
Institut National de Recherche en Santé Publique
2021
Goethe University Frankfurt
2013-2020
Clustering is one of the main mathematical challenges in large-scale gene expression analysis. We describe a clustering procedure based on sequential k-means algorithm with additional refinements that able to handle high-throughput data order hundreds thousands items measured variables. The practical motivation for our oligonucleotide fingerprinting-a method simultaneous determination level every active specific tissue-although can be applied as well other projects like EST and qualitative...
Even though ion/atom-collision is a mature field of atomic physics great discrepancies between experiment and theoretical calculations are still common. Here we present experimental results with highest momentum resolution on single ionization helium induced by 1\,MeV protons compare these to different calculations. The overall agreement strikingly good already the first Born approximation yields theory experiment. This has been expected since several decades, but so far not accomplished....
Abstract Band structure and density of states the transition metal aluminides VAl, CrAl, FeAl, CoAl, NiAl are calculated using a modified KKR method compared with various kinds experimental soft X‐ray spectra. The trends observed physical properties through 3d series well reflected by band data turn out to be essentially due degree filling up d‐band Al p‐electrons. In particular results capable explaining instability homogeneous B2 phase in case CrAl.
We investigate the ionization of HeNe from below He $1s3p$ excitation to threshold. observe ${\mathrm{HeNe}}^{+}$ ions with an enhancement by more than a factor 60 when side couples resonantly radiation field. These are experimental proof two-center resonant photoionization mechanism predicted Najjari et al. [Phys. Rev. Lett. 105, 153002 (2010)]. Furthermore, our data provide electronic and vibrational state resolved decay widths interatomic Coulombic in dimers. find that lifetime strongly...
We give a review on the properties and applications of M-estimators with redescending score function.For regression analysis, some these can attain maximum breakdown point which is possible in this setup.Moreover, them are solutions problem maximizing efficiency under bounded influence function when coefficient scale parameter estimated simultaneously.Hence satisfy several outlier robustness properties.However, there calculating regression.While location-scale case, for example, Cauchy...
Nonrelativistic over-barrier ionization (OBI) of atoms in strong electric fields is studied, focussing on hydrogen and helium as concrete examples. Our goal is, the one hand, to develop an intuitive physical picture behind established empirical formulas for rate. We show that rate a near OBI regime can be modelled quantitatively by extending corresponding tunneling rates combined action Stark effect widened electron emission angle. On other we present analytical far which closely agree with...
We investigate the temporal evolution of molecular frame angular distributions Auger electrons emitted during ultrafast dissociation HCl following a resonant single-photon excitation. The electron emission pattern changes its shape from that σ orbital to an atomic p state as system evolves molecule into two separated atoms.
Equine odontoclastic tooth resorption and hypercementosis (EOTRH) is a painful progressive dental disease that mainly affects the incisors canine teeth of aged horses. Diagnosis based on radiographs to detect early stages disease. EOTRH probably underdiagnosed its prevalence in Germany unknown.This study was performed determine radiological large horse population Berlin-Brandenburg, Germany.Prevalence study.The (142 horses) consisted all horses 10 years older were presented at Hospital for...
The breakdown point behavior of $M$-estimators in linear models with fixed designs, arising from planned experiments or qualitative factors, is characterized. Particularly, this at designs quite different that which can be corrupted by outliers, the situation prevailing literature. For points robust (those bounded derivative score function), depend on design and variation exponent (index) function. This general result implies highest within all regression equivariant estimators attained also...
This article introduces a halfspace depth in the location–scale model that is along lines of general theory given by Mizera, based on idea Rousseeuw and Hubert, complemented new likelihood-based principle for designing criterial functions. The most tractable version proposed depth—the Student depth—turns out to be nothing but bivariate interpreted Poincaré plane Lobachevski geometry. fact implies many fortuitous theoretical computational properties, particular equivariance with respect...
We present ultrahigh-resolution data on fully differential cross sections for single ionization of helium induced by 1 MeV proton impact. In the work we explore a different regime kinematic conditions in terms momentum transfer and electron energies than previously published data. These are compared with theoretical calculations. Reasonable agreement between first Born approximation experiment is obtained close to Bethe ridge. Far from this region calculated binary peak shifted respect...
We experimentally study 2p photoionization of neon dimers (Ne_{2}) at a photon energy hν=36.56 eV. By postselection ionization events which lead to dissociation into Ne^{+}+Ne we obtain the photoelectron angular emission distribution in molecular frame. This is symmetric with respect direction charged vs neutral fragment. It shows an inverted Cohen-Fano double slit interference pattern two spherical waves emitted coherently but opposite phases from atoms dimer.
For the one‐way random effects model three noniterative robust variance component estimators are investigated. these block breakdown points, measurement points and efficiency derived. It is shown that approximating 50% not smaller than 25%. By deriving asymptotic normal distribution of we show two new have an greater 82% under certain circumstances up to 96%. Competing lower efficiencies. A simulation study shows high also appears for finite samples. The use interlaboratory tests...
Coherent vacuum-ultraviolet (VUV) pulses with energy of 1.1 mJ, 2.2-nsec pulse length (2 MW cm−2 unfocused), and measured bandwidth ≤0.1 cm−1 have been achieved at 130 nm from four-wave mixing in Hg vapor. Conversion efficiencies 5% demonstrated a collimated beam geometry over 1-m interaction lengths. These high are made possible by using two-photon-resonant sum-frequency through the 71S level. The experimental facility assembled to produce this efficient VUV source is described, comparison...