Published April 1978. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised May 1982. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This study was conducted to investigate the student-to-student interactions that take place in an online community college course, and how the interactions impact an online learning community. The literature review revealed three related themes: (a) the impact of the teaching/learning environment on student interaction, (b) barriers in the online environment,...
Seasonal variations in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) leaf weight and nitrogen content were measured in Oregon's Coast and western Cascade Ranges. Current and older foliage from thinned and unthinned stands were sampled monthly from October, 1978 to September, 1979. Changes in leaf weight per unit area of foliage and...
This study was undertaken to standardize and evaluate the
tyrosinase test as a variety identification procedure for wheat. The
potential value of the tyrosinase test lies in its ability to quantify
the colored products, rather than relying on visual estimation as
in the phenol test.
The specific objectives of this...
An understanding of the dynamics of individual tree and stand
growth, development, and structural patterns during the immature
formative years of a commercial species is essential to determine
correct thinning practices necessary to attain desired objectives.
This study compared a natural, medium-site Douglas-fir stand
and an adjacent similar stand released...
Recent emphasis on linkages between essential fish habitat and fish stock productivity has raised concerns about the management of fishing activities such as trawling, which have the potential to impact fish habitat. Knowing specifically where and how intensively trawl effort has occurred over time provides ecologists with the necessary background...
Each year an estimated one million young women in the United States develop an eating disorder. Without early recognition of symptoms and early intervention/treatment, these eating disorders can lead to a host of chronic and debilitating illnesses.
Tooth erosion is one of the first signs of an eating disorder, providing...
The purpose of this study was to examine the meal management
practices used in the homes of selected home economics graduates.
A total of 296 questionnaires were mailed to Oregon State University
home economics graduates for the years 1945, 1950, 1955, and 1960.
Forty-nine percent (146) of the questionnaires were...
