The Rusty Blackbird (Euphagus carolinus) has suffered significant population declines across its entire geographic range and the mechanisms associated with this decline are poorly understood. Although much of the Rusty Blackbird breeding habitat in Alaska has remained relatively unaltered by anthropogenic activities, this species continues to decline by an estimated...
Vegetatively propagated peppermint (Mentha piperita L., cv. Black Mitcham) was used to determine the effects of night temperatures (8°C vs 25°C) on the plant growth in terms of fresh weight and leaf area, and on metabolite contents. The plants were sampled after 14 days, 21 days and 28 days in...
Horseradish peroxidase (HRP) has been investigated extensively and for many years. In spite of this it still exhibits unexplained anomalies. Among these is variation in the reported number of isozymes (from 7 to 42), and reports of instability of the isozyme patterns. Since horseradish is a rich source of organic...
Boron has been recognized since 1923 as an essential
micronutrient for vascular plants, but its function is
still not known. Many diverse roles have been proposed,
but none of these has been definitively shown. Problems
that have made the study of the function of boron
difficult include, no useful radioisotope,...
Neryl pyrophosphate, rather than geranyl pyrophosphate, is
believed to be the immediate biological precursor of the cyclohexanoid
monoterpenes because the cis-2, 3-double bond readily permits cyclization.
Biosynthesis of neryl pyrophosphate could occur by either of
two principal mechanisms: direct cis condensation of dimethylallyl
pyrophosphate with isopentenyl pyrophosphate or trans-cis isomerization...
Pelargonium graveolens Ait., rose geranium, contains several oxygenated monoterpenes, most of which are related to each other structurally. In this work, the metabolism and interconversions of these terpenes was investigated. A chromatographic analysis of geranium oil was performed initially for the purposes of identifying the terpenes and determining which chromatographic...
This study investigated the practices public and academic
library administrators find useful and utilize in analyzing
use of collections. The study also investigated
administrators' satisfaction with their collection use
analysis practices, and the impact they perceived automation
to have upon collection use analysis practices.
A survey developed for this study...
The primary purpose of this study was to investigate the formal
preparation currently required and desired for teachers of lower-division collegiate courses in public community colleges in the western
United States and to make recommendations for the preparation of
such teachers in Oregon. The identification of the functions of institutions...