medPJplus - development and implementation of a concept for the acquisition and qualification of teaching practices for the final year in family medicine at the University Medical Center Göttingen.

Aim: The Masterplan Medizinstudium 2020 (Masterplan for Medical Studies 2020) focuses on practice-oriented undergraduate training with increased involvement of rural teaching practices. The demand for teaching practices for the final year will increase at all medical faculties in Germany. The project medPJplus at the University Medical Center Göttingen (UMG) presents an approach for successfully acquiring general medical teaching practices in local rural areas. Project outline: The project medPJplus implemented eight measures in cooperation with medical students, interested general practitioners, and regional players in the surrounding districts to attract new teaching practices: we established public relations, accredited practices, organized the didactic training of participating general practitioners, created a digital platform for students that is linked to the nationwide PJ-Portal, and organized information events, workshops, and feedback reports to regional actors. Results: Within one year, a total of 40 new teaching practices with 57 new teachers in the local rural area joined the project in southern Lower Saxony. A three-stage didactic training concept for general practitioners was established at the UMG. A digital platform enhances the visibility of general practitioners and their activities for students. The teaching practices can now be found on the nationwide PJ-Portal. Fourteen students have currently completed their period of the final year in family medicine there. Conclusions: It is possible to acquire rural general medical teaching practices for the final year. This depends on four core elements: addressing and didactic training of interested general practitioners, networking of medical students with teaching physicians and regional actors, digitally presenting teaching practices, and developing solutions for mobility and living space during the final year.

Spectral characteristics of light sources for S-cone stimulation.

PURPOSE: Electrophysiological investigations of the short-wavelength sensitive pathway of the human eye require the use of a suitable light source as a S-cone stimulator. Different light sources with their spectral distribution properties were investigated and compared with the ideal S-cone stimulator. METHODS: First, the theoretical background of the calculation of relative cone energy absorption from the spectral distribution function of the light source is summarized. From the results of the calculation, the photometric properties of the ideal S-cone stimulator will be derived. The calculation procedure was applied to virtual light sources (computer generated spectral distribution functions with different medium wavelengths and spectrum widths) and to real light sources (blue and green light emitting diodes, blue phosphor of CRT-monitor, multimedia projector, LCD monitor and notebook display). The calculated relative cone absorbencies are compared to the conditions of an ideal S-cone stimulator. RESULTS: Monochromatic light sources with wavelengths of less than 456 nm are close to the conditions of an ideal S-cone stimulator. Spectrum widths up to 21 nm do not affect the S-cone activation significantly (S-cone activation change < 0.2%). Blue light emitting diodes with peak wavelength at 448 nm and spectrum bandwidth of 25 nm are very useful for S-cone stimulation (S-cone activation approximately 95%). A suitable display for S-cone stimulation is the Trinitron computer monitor (S-cone activation approximately 87%). The multimedia projector has a S-cone activation up to 91%, but their spectral distribution properties depends on the selected intensity. LCD monitor and notebook displays have a lower S-cone activation (< or = 74%). CONCLUSION: Carefully selecting the blue light source for S-cone stimulation can reduce the unwanted L-and M-cone activation down to 4% for M-cones and 1.5% for L-cones.