The purpose of this study has been to develop
insight into the aims and goals of public library service by
considering one particular type of library activity--work
with adult groups.
To determine the influence of historical events on
such service, consideration has been given to group work of
the past...
A study of the population ecology of Columbia River fall chinook
salmon, Oncorhynchus tshawytscha (Walbaum), was made in an attempt
to determine the cause of a serious decline in this run which occurred
in the early 1950's. Fluctuations in abundance of major salmon runs
the North Pacific were examined to...
The consumptive water use of six cities in the Willamette
Basin of northwestern Oregon was evaluated for the period 1960-66.
Consumptive use ratios were obtained by analyzing data from monthly
water supply and sewage flow records. The average annual consumptive
use for the six cities was found to be 26...
Methods for mathematically modeling digital networks and
for constructing a digital network simulator are presented in this
paper. Two simulator programs have been written in FORTRAN
for the CDC 3300 Computer system: one for analyzing the behavior
of a typical combinational network, and one for analyzing the
behavior of a...
The hop cyst nematode, Heterodera humuli Filipjev, 1934 was
first reported from Europe in 1894, however, very little is known
with respect to the biology and economic importance of this pest.
Abundant material from Oregon hop yards provided an excellent
opportunity to add additional details concerning the bionomics of this...
The development of new electronic devices and design procedures
applicable to ternary switching circuits suggests that it might be desirable
to use ternary arithmetic in direct digital control systems.
The advantages of decimal, binary, and ternary arithmetic in digital
computers are discussed and a set of rules for signed -digit...
A mooring system was designed and constructed to make possible
the installation and the recovery of racks of sample panels for
a study of deep-ocean wood-boring molluscs. Racks containing
pine, fir, oak, and cedar boards were exposed to borer attack at
six stations with depths of 50, 100, 150, 200,...
The purpose of this study was to determine the agricultural interests of students and needs for expansion of the agricultural education program in the Salem school district. Three basic areas were included in the study: (1) the self-expressed interests of students for agricultural instruction in agricultural careers, forestry, greenhouse and...