Learning Impact of a Virtual Brain Electrical Activity Simulator Among Neurophysiology Students: Mixed-Methods Intervention Study.

Background: Virtual simulation is the re-creation of reality depicted on a computer screen. It offers the possibility to exercise motor and psychomotor skills. In biomedical and medical education, there is an attempt to find new ways to support students' learning in neurophysiology.

Dark self-enhancement in dichromated-gelatin gratings: a detailed study.

Strong dark self-enhancement, the increase in diffraction efficiency after irradiation, has been reported previously for dichromated-gelatin gratings. Here a more-detailed study of this self-enhancement effect is presented. The self-enhancement in dichromated-gelatin gratings was of the order of 10-100, depending on the pH and on the dichromate concentration of the solution used for the preparation of dichromated-gelatin films.

Dark self-enhancement in dichromated poly(vinyl alcohol) gratings: a detailed study.

Experimental results concerning the real-time hologram recording process in dichromated poly(vinyl alcohol) are presented. Self-enhancement, the increase in diffraction efficiency of the holographic gratings in the dark after recording, is also presented. The influence of the recording parameters (pH, exposure energy, dichromate concentration) on the self-enhancement gain is shown.

Self-enhancement of holographic gratings in dichromated gelatin and polyvinyl alcohol films.

New experimental results concerning real-time hologram recording in dichromated sensitized gelatin and polyvinyl alcohol are presented. Self-enhancement of the holographic gratings observed in the dark in both of these dye-polymer systems is shown.

Investigator barriers and preferences to conduct clinical drug trials in Finland: a qualitative study.

Objective: To explore investigator barriers, preferences, and attitudes towards conducting clinical trials in Finland.

Method: In-depth, semi-structured interviews with 20 clinicians working in the field of cardiovascular medicine were performed. The interviews were audiotaped, transcribed verbatim and analysed qualitatively.