The design, construction and operation of a fluorometric reaction
rate instrument is described. The instrument is designed for simple
operation with maximum versatility. Advantages and modes of
operation of the system are discussed in detail. The instrument is
used for the kinetics-based determination of trace levels of Ag and Al....
Using thermal denaturation methodology, the nucleic acid
base composition of deoxyribonucleic acid (DNA) isolated from type,
neotype and stock strains of Lactobacillus species was determined.
The genus was found to be heterogeneous in base composition,
ranging from 33.1 to 50.0 moles % guanine plus cytosine (GC).
Genus members fell into...
We have used the sequence-specific endonucleases Eco RI, Sma I,
Bam HI, Hsu I and Hae III as identification tools in following the
conjugal transfer of the well studied R plasmids Sa, R388, RP4 and R6K.
Transfers were both intergenus and intragenus. Plasmid fingerprints
were generated from both single and...
The purpose of this study was to determine the importance and
the frequency of use of certain communication skills to job-entrylevel
mechanics as assessed by employers, educators at various levels,
and entry-level industrial mechanics. The study was conducted in
Lane County, Oregon. Communication skills investigated for importance
and for frequency...
Variation in nutrient content of forest trees is discussed using the
data from literature plus data collected by the authors. Sections are
included on sampling and methods of expression of nutrient content. The
emphasis is on possible causes of variation, which involves nutrient
variation between years, within the year, and...
This study involved three separate experiments employing a total
of 29 horses and 4 rabbits. The purpose of these studies was to investigate
the use of various quantities and forms of ryegrass straw in horse
rations, and to determine the use of whole corn plant pellets as an alternative
roughage...
Endogenous inhibitors of insect microsomal oxidases are a serious
problem in in-vitro studies of insecticide metabolism.
Their number,
chemical nature, modes of action, and their effectiveness as inhibitors
are unknown.
In the case of house flies, there may be as many as
four inhibitors.
The most important of these is...