I predict that children who engage in vigorous self-assessment play on the playground will show increased salivary cortisol levels relative to baseline levels. This summer I will be recording echolocation calls of evening bats as they feed. I will be looking for differences between calls of bats who feed together and those who feed alone. If differences are present, this may mean that bats feeding in groups are exchanging information with each other about food location. The application of plant extracts for medical use can be traced back more than 3000 years.
Herbalists often work from the premise that a combination of compounds more beneficial.
Root extracts from Arnebia euchroma , called rubricine, have been used for centuries as topical healing agents for wounds, burns, abrasions and other medical problems. My project involves characterizing rubricine s antimicrobial activities and testing if the natural mixture exhibits combinatory enhancement. This latter question tests if the premise of TCM applies to the natural combination found in plants. Dr. Joelle Presson, Department of Biology Birds and fish have the ability to produce vestibular and auditory hair cells postembryonically. In contrast, mammals are limited in their ability to produce hair cells after the period of embryonic development.