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Full-Text Articles in Other Life Sciences

The Development Of A Gc/Ms Protocol For The Analysis Of Polysaccharides In Echinacea Purpurea, Michaela Knapp Apr 2007

The Development Of A Gc/Ms Protocol For The Analysis Of Polysaccharides In Echinacea Purpurea, Michaela Knapp

Undergraduate Theses and Capstone Projects

Echinacea purpurea is an herbal supplement used to reduce symptoms of common colds and flu-like illnesses. As of right now, it is not well understood what chemical components in the plant are immunologically active. The four main potentially immunologically active chemical components in E. purpurea are caffeic acid derivatives, alkamides, polyacetylenes, and polysaccharides. In this investigation, a protocol was developed in an attempt to identify polysaccharides present in Puritan’s Pride E. purpurea (aerial) “non-irradiated” herbal supplement First, an estimate of the crude total polysaccharide content in Puritan’s Pride and in a ChromaDex certified botanical standard (E. purpurea -powdered root) was …


Dolomedes Scriptus (Water Spider): Male Response To Females’ Putative Pheromones On Perches., Katherine Hunt Apr 2006

Dolomedes Scriptus (Water Spider): Male Response To Females’ Putative Pheromones On Perches., Katherine Hunt

Undergraduate Theses and Capstone Projects

Sexual signals are commonly used among animals to enhance reproductive success. Chemical signals such as pheromones are commonly used to attract mates. Little is known, though, about how these signals are received or interpreted by the target. I studied the water spider, Dolomedes scriptus in the pisaurid family. Most Dolomedes species only make webs as a nursery for their young. However, females often create silk drag lines, potentially serving for species recognition. In some Dolomedes species, females who are previously mated are known to cannibalize most approaching males. Males might avoid cannibalism by avoiding mated females, particularly if they can …


The Effects Of Music On Heart Rate And Perceived Exertion During 20 Minutes Of Treadmill Running, Tara Litz Apr 2006

The Effects Of Music On Heart Rate And Perceived Exertion During 20 Minutes Of Treadmill Running, Tara Litz

Undergraduate Theses and Capstone Projects

This study examined the effects of music on heart rate (HR) as well as ratings of perceived exertion (RPE-B) while running on a treadmill for 20 minutes. Research subjects included men and women, ages 18 to 25. All subjects completed a 20-minute treadmill run set at 5.0 mph with 0% grade. Omron heart monitors were used to measure and record subjects’ HR every 2 minutes after the start of the test. Subjects reported ratings of perceived exertion -using the Borg Scale- which was also recorded every two minutes throughout the test period. One treadmill session included music; the other session …