Brandy Solheim

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Ultradian movements of Arabidopsis thaliana rosette leaves were discovered and studied under microgravity conditions in space. Weightlessness revealed new facets of these movements. The European Modular Cultivation System (EMCS) was used in a long-term white-light, light-darkness (LD; 16 : 8 h) experiment on the International Space Station (ISS). Leaves(More)
In a microgravity experiment onboard the International Space Station, circumnutations of Arabidopsis thaliana were studied. Plants were cultivated on rotors under a light:dark (LD) cycle of 16 : 8 h, and it was possible to apply controlled centrifugation pulses. Time-lapse images of inflorescence stems (primary, primary axillary and lateral inflorescences)(More)
Two different types of nitrogen-fixing root nodules are known- actinorhizal nodules induced by Frankia and legume nodules induced by rhizobia. While legume nodules show a stem-like structure with peripheral vascular bundles, actinorhizal nodule lobes resemble modified lateral roots with a central vascular bundle. To compare carbon metabolism in legume and(More)
Eighty patients with untreated dermatitis herpetiformis (DH) were studied. The final diagnosis was made after completion of immunofluorescence (IF) studies of the skin, iodine provocation tests and gastrointestinal investigations. IgA deposits in the skin and the HLA-DRw3 B-cell alloantigen can be demonstrated in nearly all cases of DH. Positive iodine(More)
OBJECTIVES Difficult awakening is a key symptom of delayed sleep phase disorder (DSPD), but no studies have quantified awakening thresholds in a sleep laboratory. This study assessed whether cognitive function was impaired after awakening and whether difficult awakening was associated with specific polysomnographic features such as slow wave sleep stage N3.(More)
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