Temperature effects on osmoregulation were studied in larval
Ambystoma gracile. There was a pronounced effect on the osmotic
uptake of water through the skin. The rates at 5°C, 15°C and 25°C
were respectively 0.03 ml/hr., 0.1 ml/hr. and 0.2 ml/hr. for a
10g animal. The Q₁₀'s for these changes in...
Microbial activity within elevated CO2 and oxygen depleted environments changes with
density driven stratification overturn in the seasonally anoxic region of Devil’s Hole,
Bermuda. The temperature gradient developed during the summer months creates a
natural laboratory to study bacterial and virus population density and microbial
community dynamics in the anoxic...
A time and energy budget was constructed for a population of
dippers (Cinclus Mexicanus) in the Cascade Range of Oregon during
winter. A total of 12,202 point observations of activity were made
from nine observation blinds from 19 November 1973 to 10 February
1974. Approximately 50 percent of all observations...
Non-coding ribonucleic acid (ncRNA) is of interest for its diverse roles in cell and viral biology. RNA molecules vary greatly in terms of size, structure, and function. In recent years, the modification of existing RNA structures has been used for biochemical methods of enormous impact including CRISPR and RNAi methods....
Thermal analysis was used to investigate the following seven
systems: H₂S-B₂F₄, SOF₂-B₂F₄, COC1₂-B₂F₄, SF₄-B₂F₄, Xe-BF₃, NF₃-BF₃, and NF₃-BC1₃. In two of the seven systems
compound formation was observed.
In the system, H₂S-B₂F₄ the compounds H₂S[superscript .]B₂F₄ and
2H₂S[superscript .]B₂F₄ are formed. The compound H₂S[superscript .]B₂F₄ has a melting
point of...
All attempted synthesis of perfluoroalkyl boron bonded groups
have resulted in the formation of boron-fluorine bonds from the
probable decomposition by α-fluorine transfer. The substance alkali
metal di-n- butylborate (I) has been identified as the potassium derivative
by its reaction with di-n-butylboron chloride and isolation of
potassium chloride. The reaction...
The morphology and genesis of soils of the Willamette series
and of some Willamette-associated soils and their relationships to
geomorphic surfaces were studied in an area near McCoy, Polk
County, Oregon. Influences of regional extent, such as climate and
parent material, were related to the soils and landforms. The soils...
Typical power outputs of commercially available diode lasers are on the
order of 5 milliwatts. This thesis discusses the growth, processing and
fabrication of high power (lOO's of milliwatts) diode lasers. Devices were
grown by Molecular Beam Epitaxy (MBE) and by Metal Organic Chemical
Vapor Deposition (MOCVD). The MOCVD diode...
This Beef Cattle Nutrition Workbook is designed to be an interactive
tool to help beef producers manage their herds. It contains information
about beef cattle nutrient requirements, forage nutritive value, the importance
of minerals and vitamins to cattle health and performance, balancing
rations, economical supplementation strategies, heifer development,
and the...
This research was conducted to compare the performance of
community college students to four -year institutional students both
of which were enrolled in one of three different programs of general
college chemistry for nonscience majors during the 1967 -68 academic
year. The three programs were defined as follows:
Program A...
Published May 2002. Reviewed August 2013. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog