Senecio jacobaea (tansy ragwort) is a common weed in the
Pacific Northwest that contains toxic pyrrolizidine alkaloids
(PAs). Jacobine, the major PA in Senecio jacobaea, was incubated
with rat liver microsomes and metabolites were isolated by high
performance liquid chromatography (HPLC) and identified by mass
spectrometric analysis. Metabolites included a...
The ribosome is a central component of the protein
synthetic apparatus. It is a macromolecular complex of
protein and RNA. Although much progress has been made in
understanding the functional role of the proteins in this
particle, little is known of the functional role which
the RNA plays. Naturally occurring...
The nature of inheritance and possible associations for traits
influencing earliness and grain yield were investigated using a four
parent diallel of winter and spring wheat cultivars.
More genetic variability was observed for the traits measured in
segregating populations resulting from crosses between winter and spring
type wheats in contrast...
Revised edition of the author's "Vegetation of Oregon and Washington", originally published by the U.S. Forest Service in 1973. Reprinted with new bibliographic supplement by the OSU Press in 1988.
Ribosomes are ribonucleoprotein particles that are essential for
the process of protein synthesis in all living systems. Escherichia
coli, eubacterial organisms, have ribosomes which display a 70S
sedimentation coefficient. They are formed by the association of two
ribonucleoprotein subunits which sediment at 50S and 30S. The 30S
subunit is a...
Ribosomes are intricate macromolecular complexes which are a major
element of the protein biosynthetic machinery in all life forms. In
Escherichia coli they contain about 50 distinct proteins and 3
ribosomal RNAs. The small 30S ribosomal subunit in E. coli
incorporates 21 proteins and a 16S rRNA. The 16S rRNA...
The purpose of this study was to determine the
effects of frequent versus conventional testing on
Chemistry achievement test anxiety, and attitudes toward
science of students enrolled in general chemistry classes
at the University Technology of Malaysia. The subjects
consisted of 278 students taking first year Chemistry at
the University...
The Salt Range and Potwar Plateau are part of the currently active
foreland fold-thrust belt of the Himalaya in Pakistan. Seismic reflection data have been combined with surface mapping, drillhole and
paleomagnetic information to construct balanced structural cross-sections of the current frontal thrust zone (Salt Range), and to estimate
the...
An expression is derived for the rate at which the diffuse attenuation coefficient for vector irradiance approaches its asymptotic value in a homogeneous medium. The asymptotic approach rate is shown to be a function of boundary conditions at the surface and the asymptotic diffuse attenuation coefficient which is an inherent...