A Lactobacillus species of human intestinal origin (strain
MLC) used in swine feeding experiments was characterized using
biochemical, genetic and serological techniques and found to be
Lactobacillus lactis. Bottle feeding of the MLC strain in concentrate
form (> 10⁹ cfu/ml) resulted in a reduction in both fecal coliforms
and the...
The existence of eigenvalues is shown for certain types of
integral equations with continuous kernels, the proofs utilizing some
basic results of collectively compact operator approximation theory.
The ability of mercury to inhibit β - galactosidase activity from
cell-free extracts of Streptococcus lactis, Escherichia colt and
intestinal homogenates of hogs, female rats, and humans was studied. Mercuric acetate was added in vitro to all sources of β - galactosidase except for the rats, which were placed on...
Reports of previous research indicated a stimulatory effect of
triazine herbicides on growth, yield and protein content of plants and
seeds of various species.
Studies were conducted in the greenhouse, laboratory and field
to investigate the effects of atrazine (2-chloro-4-ethylamino-6-a sopropylarnino-
s-triazine) on growth, yield, seed composition, and
seed germination...
This investigation was designed to determine whether or not the nonverbal behaviors of junior high and secondary school science students could be systematically analyzed. It was further determine what relationship exists between the nonverbal behaviors of students and their attitude. The hypotheses investigated were as follows: H₁: A valid and...
Myelin formation in the chick embryo sciatic nerve was examined
during development by analysis of three myelin lipids (cholesterol,
phospholipids, and cerebrosides) and of a myelin related
enzyme (2', 3'-cyclic AMP 3'-phosphohydrolase). The role of the
Schwann cell in controlling the synthesis of these myelin components
was studied by in...
The ability of Streptococcus diacetilactis to inhibit a variety of
food-borne pathogens and spoilage organisms in milk and broth cultures
was demonstrated. Test organisms inhibited included Pseudomonas
and Alcaligenes species, Eschericia coli, Salmonella, Staphylococcus
aureus, Clostridium perfringens and Vibrio parahaemolyticus.
In general, approximately 99.0% and 99.9% inhibition was
observed in...
Many agricultural fields are burned in the Willamette Valley
of Oregon during the summer for economic reasons. A major air
pollution problem results from these burnings. The purpose of this
study was to develop relations between the maximum plume height
and some of the independent variables affecting this plume height,...