The first committed step in DNA biosynthesis occurs by direct reduction of
ribonucleotides. This reduction is catalyzed by ribonucleotide reductase (RNR), an
enzyme which uses a unique radical mechanism to facilitate the transformation. All four
DNA precursors are synthesized by a single enzyme. Therefore, an intricate pattern of
regulation has...
This case study describes and analyzes the experiences of Mt. Hood Community
College (MHCC) in its implementation of four retention interventions. Each of the four
interventions are described in detail. Discussion is framed within the context that retention
is a by-product of institutional renewal brought about by implementing interventions that...
The goal of this research was (1) to identify the patterns or pattern pieces of
development for heterosexual, dyadic, romantic relationships that emerge from
mixed-sex, friendship groups and (2) to compare and contrast those patterns or
pattern pieces to patterns in existing stage theories. To address these goals, data
were...
The study reported in this thesis is part of an investigation designed to determine the metabolism of thiamine and riboflavin in human subjects who were maintained on controlled diets. Part of this investigation was made during a 30-day experimental period in 1950 and the other part, during a 30-day experimental...