Grass seed production in Oregon's Willamette Valley traditionally relied on open field burning for straw residue disposal and nutrient recycling. Changes in residue management from open field burning to methods that remove straw coincided with rapidly declining K soil test values. A survey of grass seed fields showed that many...
Gradeability of log trucks is limited by either
vehicle rimpull or ground-tire adhesion. The analysis presented shows that log trucks in current use in the Pacific Northwest are limited by tire-slip gradeability rather than by rimpull. Analytic techniques were used to determine that gradeability is greatest for piggyback and least...
Modern science was produced by a Christian society,
and although science has had an effect on Christianity, it
could not itself remain unaffected. In the second half of
the nineteenth century, the subject of evolution was as
much a religious as a scientific issue. The battle line
was drawn and...
Part of the responsibility of maintaining the sanitary quality
of individual water supply systems has been placed on the local sanitarian
of Oregon. Because of this, he must be knowledgeable about
individual water supply systems. One such source of knowledge has
been the supply of written reference materials available in...
This study was concerned with the effect of additional time in
health instruction for 9th graders at the junior high school level.
A 120-item questionnaire, developed after extensive review of related
tests, was mailed to a jury of ten health subject matter experts.
The evaluations of all the items made...
Gamma irradiation survival curves of Salmonella enteriditis,
Salmonella paratyphi A, Salmonella cholerasuis, Salmonella
pullorum and Streptococcus pyogenes were determined in crabmeat
and in Hartsell's broth. The survival pattern of Staphylococcus
aureus in crabmeat was also determined.
A "tailing off" was found in the survival patterns of
Salmonella paratyphi A, Salmonella...
The purpose of this study was to investigate the relationship between poverty and mental retardation and to place mental retardation in its true perspective as a social condition which thrives especially in poverty areas. More specifically, this study attempted to determine if there was any significant relationship between selected social...
This study was concerned with identifying the program activities
and resources believed necessary to support a districtwide, comprehensive
school health instruction program and investigated the perceptions
of an expert committee composed of persons involved in
school health instruction in the State of Washington.
A questionnaire, developed after extensive review of...
The major purpose of this study was to investigate the effects
of indoor aquatic activities on the health patterns of the college student.
Three groups of students were used in the investigation: the
experimental group, comprised of students enrolled in aquatic
activities, and two control groups, the first comprised of...
Using a panel data set on the local telecommunications companies reporting to the FCC
for 1988-95, this paper investigates the subadditivity of the cost function, as well as
technical and allocative inefficiency of the U.S. local telephone industry. The subadditivity
test on the estimated translog cost function indicates that certain...