There is an increasing need for development of laboratory
identification procedures for purposes of plant variety protection, seed certification, quality control and consumer protection. In the past there were fewer commercial varieties and field
testing methods based on morphological differences were used satisfactorily. These tests require several months to complete...
One hundred and fourty-one lambs showing signs of pneumonia
and/or enteritis from four different flocks in western Oregon were
sampled for virus isolation. Two ovine adenoviruses, antigenically
distinct from each other and from bovine adenoviruses, were
isolated from the nasal mucosa and feces of two lambs. The lambs
were showing...
Pacific shrimp (Pandalus jordani) was washed repeatedly and the
eluted bacteria were enumerated and identified. Selected isolates
were tested for their adhesive properties.
Washing reduced the microbial load by 3.84 to 42.04%. The bacteria
which most resisted wash-off were Staphylococcus and Pseudomonas
spp. The easiest to wash off was Flavobacterium...
Diet, nutrition, and foraging strategies of canvasbacks (Aythya valisineria) and redheads (A. americana) were studied by collecting actively feeding birds throughout the reproductive season in 1980 and 1981; samples of available foods were taken each time a bird was collected. Nutrient composition of the aggregate diet was determined for each...
The purpose of this research was to compare two instructional
programs of inservice training on Personal Hygiene for hospital foodservice
employees for knowledge retention and cost effectiveness.
The two instructional methods used were lecture discussion with a
script and transparencies and the individual instruction with cassette
tape and slides.
The...
The fouling characteristics of simulated cooling tower water flowing over a heated metallic surface has been studied. The bulk temperature of the water was maintained around 95°F. Mainly three different water qualities with respect to calcium hardness level were investigated. The pH was controlled by the addition of hydrochloric acid....
An analytical model is developed to examine the response and
efficiency of a vertical rigid, hinged, floating breakwater. The
boundary value problem describing the flow field yields a well-posed
Sturm-Liouville problem which is solved by separation of variables
for the velocity potentials. The equation of breakwater motion about
the breakwater...
The nature and extent of niparian vegetation change from 1972 to
1981 in the Willamette River Greenway in Benton and Linn Counties,
Oregon was quantitatively investigated. The study was primarily by
aerial imagery analysis and associated field verification. A classification
of vegetation and land cover within the study area was...
The effects of clonal variability, crown position of cones, and top-pruning of ramets to reduce height growth, on 1) the proportion of viable self-fertilized progeny (s) and 2) the proportion of filled seeds (PF), were investigated in a 20 year-old Douglas-fir (Pseudotsuga menziesii [Mirb.1 Franco) seed orchard. Cones were collected...
