@article{UllherrDiezZabler2022,
  author    = {Ullherr, Maximilian and Diez, Matthias and Zabler, Simon},
  title     = {Robust image reconstruction strategy for multiscalar holotomography},
  series = {Journal of Imaging},
  volume    = {8},
  journal   = {Journal of Imaging},
  number    = {2},
  issn      = {2313-433X},
  doi       = {10.3390/jimaging8020037},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-262112},
  year      = {2022},
  abstract  = {Holotomography is an extension of computed tomography where samples with low X-ray absorption can be investigated with higher contrast. In order to achieve this, the imaging system must yield an optical resolution of a few micrometers or less, which reduces the measurement area (field of view = FOV) to a few mm at most. If the sample size, however, exceeds the field of view (called local tomography or region of interest = ROI CT), filter problems arise during the CT reconstruction and phase retrieval in holotomography. In this paper, we will first investigate the practical impact of these filter problems and discuss approximate solutions. Secondly, we will investigate the effectiveness of a technique we call "multiscalar holotomography", where, in addition to the ROI CT, a lower resolution non-ROI CT measurement is recorded. This is used to avoid the filter problems while simultaneously reconstructing a larger part of the sample, albeit with a lower resolution in the additional area.},
  language  = {en}
}
@article{VollmerSaraviVollmeretal.2022,
  author    = {Vollmer, Andreas and Saravi, Babak and Vollmer, Michael and Lang, Gernot Michael and Straub, Anton and Brands, Roman C. and K{\"u}bler, Alexander and Gubik, Sebastian and Hartmann, Stefan},
  title     = {Artificial intelligence-based prediction of oroantral communication after tooth extraction utilizing preoperative panoramic radiography},
  series = {Diagnostics},
  volume    = {12},
  journal   = {Diagnostics},
  number    = {6},
  issn      = {2075-4418},
  doi       = {10.3390/diagnostics12061406},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-278814},
  year      = {2022},
  abstract  = {Oroantral communication (OAC) is a common complication after tooth extraction of upper molars. Profound preoperative panoramic radiography analysis might potentially help predict OAC following tooth extraction. In this exploratory study, we evaluated n = 300 consecutive cases (100 OAC and 200 controls) and trained five machine learning algorithms (VGG16, InceptionV3, MobileNetV2, EfficientNet, and ResNet50) to predict OAC versus non-OAC (binary classification task) from the input images. Further, four oral and maxillofacial experts evaluated the respective panoramic radiography and determined performance metrics (accuracy, area under the curve (AUC), precision, recall, F1-score, and receiver operating characteristics curve) of all diagnostic approaches. Cohen's kappa was used to evaluate the agreement between expert evaluations. The deep learning algorithms reached high specificity (highest specificity 100\% for InceptionV3) but low sensitivity (highest sensitivity 42.86\% for MobileNetV2). The AUCs from VGG16, InceptionV3, MobileNetV2, EfficientNet, and ResNet50 were 0.53, 0.60, 0.67, 0.51, and 0.56, respectively. Expert 1-4 reached an AUC of 0.550, 0.629, 0.500, and 0.579, respectively. The specificity of the expert evaluations ranged from 51.74\% to 95.02\%, whereas sensitivity ranged from 14.14\% to 59.60\%. Cohen's kappa revealed a poor agreement for the oral and maxillofacial expert evaluations (Cohen's kappa: 0.1285). Overall, present data indicate that OAC cannot be sufficiently predicted from preoperative panoramic radiography. The false-negative rate, i.e., the rate of positive cases (OAC) missed by the deep learning algorithms, ranged from 57.14\% to 95.24\%. Surgeons should not solely rely on panoramic radiography when evaluating the probability of OAC occurrence. Clinical testing of OAC is warranted after each upper-molar tooth extraction.},
  language  = {en}
}
@article{MuellerGraetzBallesetal.2021,
  author    = {M{\"u}ller, Dominik and Graetz, Jonas and Balles, Andreas and Stier, Simon and Hanke, Randolf and Fella, Christian},
  title     = {Laboratory-Based Nano-Computed Tomography and Examples of Its Application in the Field of Materials Research},
  series = {Crystals},
  volume    = {11},
  journal   = {Crystals},
  number    = {6},
  issn      = {2073-4352},
  doi       = {10.3390/cryst11060677},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-241048},
  year      = {2021},
  abstract  = {In a comprehensive study, we demonstrate the performance and typical application scenarios for laboratory-based nano-computed tomography in materials research on various samples. Specifically, we focus on a projection magnification system with a nano focus source. The imaging resolution is quantified with common 2D test structures and validated in 3D applications by means of the Fourier Shell Correlation. As representative application examples from nowadays material research, we show metallization processes in multilayer integrated circuits, aging in lithium battery electrodes, and volumetric of metallic sub-micrometer fillers of composites. Thus, the laboratory system provides the unique possibility to image non-destructively structures in the range of 170-190 nanometers, even for high-density materials.},
  language  = {en}
}
@article{TackeBentlageSheldricketal.1982,
  author    = {Tacke, R. and Bentlage, A. and Sheldrick, W. S. and Ernst, L. and Towart, R. and Stoepel, K.},
  title     = {Sila-Pharmaka, 24. Mitt. [1]. Sila-Analoga von Nifedipin-{\"a}hnlichen 4-Aryl-2.6-dimethyl-1.4-dihydropyridin- 3.5-dicarbons{\"a}ure-dialkylestern, II.},
  series = {Zeitschrift f{\"u}r Naturforschung B},
  volume    = {37},
  journal   = {Zeitschrift f{\"u}r Naturforschung B},
  number    = {4},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-128381},
  pages     = {443-450},
  year      = {1982},
  abstract  = {In the course of systematic studies on sila-substituted drugs the nifedipine-like 1.4-dihydropyridine derivatives 4a, 4b and 4c were prepared and investigated with respect to sila-substitution effects. By X-ray diffraction analyses 4a, 4b and 4c were found to be isostructural. The C/Si-analogues exhibit similar spasmolytic activities (in vitro, guinea pig ileum), comparable with that of nifedipine. However, the compounds differ substantially in their in vivo activity, as measured by the antihypertensive effect on the renal-hypertensive rat. The experimental results are discussed with respect to the carbon/silicon exchange.},
  language  = {de}
}
@article{TackeLinohAttarBashietal.1982,
  author    = {Tacke, Reinhold and Linoh, Haryanto and Attar-Bashi, Moayad T. and Sheldrick, William S. and Ernst, Ludger and Niedner, Roland and Frohnecke, Joachim},
  title     = {Sila-Pharmaka, 26. Mitt. [1] Darstellung und Eigenschaften potentiell curarewirksamer Silicium-Verbindungen, III},
  series = {Zeitschrift f{\"u}r Naturforschung B},
  volume    = {37},
  journal   = {Zeitschrift f{\"u}r Naturforschung B},
  number    = {11},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-128402},
  pages     = {1461-1471},
  year      = {1982},
  abstract  = {The potentially curare-like silicon compounds 8a- 8f were synthesized and investigated with respect to their structure-activity relationships. The conformations of the compounds in the solid state and in solution were studied by X-ray diffraction analysis (8a- 8e) and IR NMR spectroscopy (8a- 8f), respectively. The muscle relaxing properties of 8a- 8f were investigated on the mouse. The observed structure-activity relationships are not in accordance with the classical "14 {\AA} model" for neuromuscular blocking agents.},
  language  = {de}
}