Recreation opportunity planning, including use of the recreation
opportunity spectrum (ROS), was developed to aid land managers in
inventorying, classifying, and managing outdoor recreation resources
within an overall planning framework. This planning concept, which
combines physical, managerial, and social setting characteristics
into an array of recreation opportunities ranging from primitive...
The topic of this study is the cultural impact of the computer in a school. "Impact" is 'defined as the cultural consequences of intended and unintended learning that occur when computers are used in the school. The major theoretical orientations of the work include the concepts of manifest and latent...
This exploratory study examined Oregon home-based business owners' needs and their willingness to participate in selected educational activities. The specific objectives of the study were: (1) to determine home-based business owners' needs in the areas of Planning and Evaluation, Marketing and Sales, Finance, Laws and Regulations, Product and Quality Control,...
Due to an interest in the evolutionary origins of
vertebrate mechanisms of immunorecognition, researchers
have frequently turned to deuterostome invertebrates as
model organisms. The purple sea urchin, Strongylocentrotus
purpuratus (Echinodermata: Echinoidea), was selected for
this study of putative immunorecognition molecules in a
deuterostome invertebrate.
Hemagglutinins, molecules which agglutinate red blood...
Selected secreted and cellular virulence factors of Aeromonas
salmonicida were examined. A protocol was developed for the
separation of two secreted proteases (P1 and P2 protease), and
a trout erythrocyte specific hemolysin (T-lysin) from
supernatants of cultures of the bacterium. Distinctions between
the proteases were demonstrated using molecular weight
determinations,...
The loss of all deuterium labels from previous feedings of [2-²H]-,
[3,3-²H₂]-, and [2,3,3-²H₃]arginines had indicated the possible intermediacy
of β-hydroxy- and β-ketoarginine (30 and 31, respectively) in the
biosynthesis of the streptolidine portion of streptothricin F (la).
In order to confirm or refute this evidence, D,L-[2,3,3,5,5-²H₅]-
arginine (32) was...