Publications by authors named "H J Wittig"
The identification of deceased with unknown identity is a key task in forensic investigations. Current radiologic identification approaches are often elaborative, lack statistical evidence, and are dependent on the examiner's experience and expertise. Thus, the aim of this work was to develop a 3D computational and thus, more objective identification approach.
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- Forensic medicine heavily relies on photography to document evidence, with infrared (IR) photography capable of capturing wavelengths unseen by the human eye.
- A study analyzed the effectiveness of IR photography in identifying 43 hematomas in deceased people, showing that IR accurately detected all cases, while visible-light photography only captured about 53.5%.
- The tonal values obtained from IR images correlated well with the microscopic density of the hematomas, indicating that IR photography can be a valuable tool for identifying hematomas, potentially even in living individuals.
We present lattice-QCD results for the electromagnetic form factors of the proton and neutron including both quark-connected and -disconnected contributions. The parametrization of the Q^{2} dependence of the form factors is combined with the extrapolation to the physical point. In this way, we determine the electric and magnetic radii and the magnetic moments of the proton and neutron.
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- The study uses lattice Quantum Chromodynamics (QCD) to analyze nucleon sigma terms, accounting for various sources of error like excited-state contaminations and finite-size effects.
- The pion nucleon sigma term is calculated to be σ_{πN}=(43.7±3.6) MeV, indicating some discrepancies with results from dispersion theory.
- Additionally, a nonzero value for the strange sigma term is found, with σ_{s}=(28.6±9.3) MeV.
It is well known that magnetic resonance (MR) imaging is temperature sensitive, which is highly relevant for post mortem examinations. Therefore, the determination of the exact temperature of the investigated body site, e.g.
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