Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
2d Nmr Structural Study Of A Dna Duplex Containing Two Unnatural Base Pairs, Weston Preising
2d Nmr Structural Study Of A Dna Duplex Containing Two Unnatural Base Pairs, Weston Preising
Undergraduate Honors Theses
DNA is the genetic blueprint responsible for the traits of living organisms. The "genetic alphabet" consists of four molecules called nucleobases, represented by the letters A, T, G, and C strung together in a "strand." A DNA duplex consists of two "strands" held together such that A is across from T and G across from C, referred to A-T and G-C "base pairs". Recently, the genetic alphabet or code has been expanded by synthetic biologists in an effort to unveil new insights to the machinery of DNA replication, and potentially develop new medicines to cure diseases like HIV. The new …
Investigation Into The Mechanism Of Ion Transport In Rio Negro Characiformes, Vineza D. Reduta
Investigation Into The Mechanism Of Ion Transport In Rio Negro Characiformes, Vineza D. Reduta
Undergraduate Honors Theses
Four fish species within the Characiform Order [(Rosy tetras (Hyphessobrycon rosaceus), Serpae tetras (Hyphessobrycon eques), Emperor tetras (Nematobrycon palmeri) and Penguin tetras (Thayeria obliqua)] are native to the ion-poor, acidic waters of the Rio Negro. In this paper, we focus on Wood’s revised Na+/NH4+ exchange model to gain better insight into the mechanisms of ion transport within the Characids. We exposed each species to two experimental treatments: (i) 1mM ammonia (high external ammonia [HEA]), to test coupling of Na+ uptake and ammonia excretion, and (ii) 100μM Acetazolamide …
Determination Of The Substrate Specificity Of Citrus Paradisi Flavonol Specific 3-O-Glucosyltransferase Mutant D344p, Nathan R. Spaulding
Determination Of The Substrate Specificity Of Citrus Paradisi Flavonol Specific 3-O-Glucosyltransferase Mutant D344p, Nathan R. Spaulding
Undergraduate Honors Theses
Plants produce a vast array of secondary metabolites. A group of phenolic compounds, the flavonoids, are metabolites ubiquitous among plants and are known to aid in processes such as plant reproduction, UV defense, pigmentation and development. In relation to human health, flavonoids have been found to possess anti-inflammatory, anti-cancer, and antioxidant properties. Flavonoid’s ability to participate in so many interactions is due in part to their subclass variation and further chemical modification. One such modification is glucosylation, where a glucose molecule is added to the flavonoid substrate. The enzymes that catalyze these reactions are known as glucosyltransferases (GT). Citrus paradisi …
Oxidative Quenching Of Photoexcited Ru(Ii)-Bipyridine Complexes By Oxygen, Danielle Rebecca Latham
Oxidative Quenching Of Photoexcited Ru(Ii)-Bipyridine Complexes By Oxygen, Danielle Rebecca Latham
Undergraduate Honors Theses
An experimental approach was taken in determining the quantum yield of Ruthenium(II) with Oxygen using two different Ru complexes. This reaction results in Ruthenium(III) and O2-. The Coulombic interactions caused by a carboxylate functional was found to increase the yield of charge separation. This was done using a diode to measure the intensity of the completed reaction over a certain time frame. The intensities were turned into concentrations. The concentration over time was used to determine the quantum yield. This information is useful in creating more efficient light emitting diodes.