The temporal and spatial characteristics of the plume produced
by a laser microprobe, are dependent upon the composition and pressure
of the atmosphere surrounding it. It has been shown that certain atmospheres
can enhance the analytical signal by increasing the free
atom lifetime.
Improvements were made to the existing laser...
The purpose of this study was to determine the attitudes of
three Oregon State Penitentiary minority inmate groups -
Blacks, Hispanics, and Native Americans - towards the Activities
Programs as a rehabilitative tool. Two other purposes
were to (1) determine significant differences among group
attitudes, and (2) determine the degree...
The major purpose of this study was to assess the effectiveness of
interactive video in the teaching/learning process. More specifically,
a comparison was made of the relative effectiveness of interactive
video and linear video as delivery modes in the acquisition of basic
photography skills in an independent learning environment at...
Field trials were conducted during 2001 to 2003 to investigate soil population dynamics of Meloidogyne chitwoodi, tuber symptom suppression using oxamyl, and post-harvest tuber symptom development on short-season potato varieties Russet Norkotah and Russet Nugget (San Luis Valley only). The experiments were located in the San Luis Valley in Colorado,...
Ascorbic acid, or vitamin C, is well known as a co-factor for proline-hydroxylase and as an anti-oxidant. However, it is also capable of forming covalent bonds, particularly in the role of a nucleophile, henceforth termed 'ascorbylation'.
The ascorbylation of electrophiles can occur under physiological conditions. Furthermore, there are a number...
Over the past century, life expectancy in the United States has dramatically increased leading to an increasingly aging population with people reaching, and spending more years in ‘old age’. While this unprecedented shift in population demographics represents great strides for humanity, it is not without cost. One consequence of longer...
After nearly 20 years of commercial use in orchards without
apparent tree injury in Oregon and Washington, 2,4-D [(2,4-dichlorophenoxy)
acetic acid] was reported in 1970 to cause injury to apple
and pear trees in Washington. In the early 1970's, there was widespread
concern among growers, researchers, and processors in the...
An asymmetric approach to the synthesis of byssochlamic acid (1) is
described. Regioisomeric enzymatic differentiation is described in the selective
hydrolysis of dimethyl ester 30 by porcine liver esterase. Chiral dimethyl ester 42
was prepared by desymmetrization of cyclopentene 34 using porcine liver
esterase. A key intramolecular [2+2]cycloaddition-cycloreversion
photometathesis of...
Red alder (Alnus rubra Bong.) seedlings were grown at three initial spacings (8 x 8 cm, 4 x 4 cm, and 2 x 2 cm) and on two soil types
(forest soil and river loam) under greenhouse and lath house conditions for 525 growing days. There were seven harvest dates,...