The promoter-terminator of chrysanthemum rbcS1 directs very high expression levels in plants.

Transgenic plants are increasingly used as production platforms for various proteins, yet protein expression levels in the range of the most abundant plant protein, ribulose-1,5-bisphosphate carboxylase have not yet been achieved by nuclear transformation. Suitable gene regulatory 5' and 3' elements are crucial to obtain adequate expression. In this study an abundantly transcribed member (rbcS1) of the ribulose-1,5-bisphosphate carboxylase small-subunit gene family of chrysanthemum (Chrysanthemum morifolium Ramat.

Nystagmus alternans.

Alternating nystagmus is a spontaneous nystagmus which changes in direction without any external influence. In the literature this phenomenon has so far been described in 90 cases; in 12 of these, the nystagmus had a congenital origin. In contradistinction to the congenital type, the acquired type of alternating nystagmus is in most cases caused by a central nervous system disorder.

Caloric vestibular test with the use of air.

In a group of 28 test subjects the vestibular caloric test was performed with the aid of two different methods. In the first method the ears were irrigated for 30 sec with water with a temperature of 30 C and 44 C and later on with airstream with a temperature of 20 C and 50 C. The wet method proved to be a significant stronger stimulus than the dry method.