Christian Betz

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Genetically tractable model plants offer the possibility of defining the plant O(3) response at the molecular level. To this end, we have isolated a collection of ozone (O(3))-sensitive mutants of Arabidopsis thaliana. Mutant phenotypes and genetics were characterized. Additionally, parameters associated with O(3) sensitivity were analysed, including(More)
Anatomical variations in the sinus region are not necessarily pathological, but they may complicate the anatomy of the lateral nasal wall and contribute to the occurrence or persistence of chronic inflammatory diseases. In this study the interpretations of initial coronal CT scans were significantly altered following multiplanar CT-reconstruction. Assuming(More)
Review paper and Proceedings of the Inaugural Meeting of the Head and Neck Optical Diagnostics Society (HNODS) on March 14th 2009 at University College London. The aim of our research must be to provide breakthrough translational research which can be applied clinically in the immediate rather than the near future. We are fortunate that this is indeed a(More)
BACKGROUND The purpose of the present study was to determine normal values of epithelial thickness within the oral cavity by using optical coherence tomography (OCT). METHODS In a total of 143 healthy test persons, epithelial thickness of the oral mucosa was determined with the help of OCT separately for each side at 7 different locations. Special(More)
A knowledge–based tutorial computer system in rheumatology had been integrated in a standard course of internal medicine for students in their fourth year of medical curriculum. The tutoring software is based on the expert–system shell–toolkit D3 and its tutorial component D3Trainer. Based on the knowledge base " Rheuma", which is also used for consultation(More)
Problembasiertes Lernen erfordert eine möglichst große Anzahl von Fallstudien. Jedoch ist die Erstellung von Trainingsfällen ein aufwändiger Prozess. Die Kerninformation ist in Fallbeschreibungen, z.B. Arztbriefen in der Medizin, bereits enthalten. Um daraus Trainingsfälle generieren zu können, ist eine Nachbearbeitung und semantische Annotierung(More)
While histopathology of excised tissue remains the gold standard for diagnosis, several new, non-invasive diagnostic techniques are being developed. They rely on physical and biochemical changes that precede and mirror malignant change within tissue. The basic principle involves simple optical techniques of tissue interrogation. Their accuracy, expressed as(More)
The complete surgical removal of disease is a desirable outcome particularly in oncology. Unfortunately much disease is microscopic and difficult to detect causing a liability to recurrence and worsened overall prognosis with attendant costs in terms of morbidity and mortality. It is hoped that by advances in optical diagnostic technology we could better(More)
The new media such as the internet and digital imaging offer new opportunities in medical education. In addition to conventional lectures, we developed a case-based simulation training program of 17 hematology cases using the novel training system d3web.Train. We evaluated the assessment of this internet course by medical students, as well as their results(More)
Objective: We introduce a case-based training program using the novel system d3web.Train. It allows fast development of case studies for a computer course using available clinical patient records. We evaluated the training program during a rheumatology course for medical students. Methods: Students received a short introduction into the system (d3web.Train)(More)