Experiments were conducted to examine the effects of a tumor-promoting phorbol ester, a calcium ionophore and indomethacin on bovine luteal oxytocin (OT) synthesis and secretion and progesterone secretion. Six 18-month-old crossbred beef heifers in Exp. 1 and five similar heifers in Exp. 2 were observed twice daily for estrus using...
Low back pain (LBP) is a major-health and economic
problem with uncertain etiology, and no known effective
means of prevention and control. Data for this
investigation were obtained from the second National
Health and Nutrition Examination Survey (NHANES II)
conducted by the National Center for Health Statistics.
The NHANES II...
Literature and museum records have been reviewed to
provide a summary on the distribution, habitat
associations and biology of six western North American
Dicosmoecinae genera and the single eastern North
American genus, Ironoquia. Results of this survey are
presented and discussed for Allocosmoecus, Amphicosmoecus
and Ecclisomvia.
Field studies were conducted...
Recent studies have demonstrated that perturbations of
intracellular thiol and calcium homeostasis may be important events
in the early development of cell injury by toxic chemicals.
Incubation of isolated rat hepatocytes in a calcium free
medium, severely depleted intracellular Ca²⁺ levels and resulted in
the loss of both cytosolic and...
Dyphylline is an analogue of theophylline and the
latter is the most popular member of the methyixanthine
family in use for the treatment of asthma. Although
dyphylline is devoid of some problems associated with
theophylline, a reported short half-life for dyphylline
(2.1 hours) has made its clinical usefulness limited. In...
This study was conducted to investigate the involvement of selenium and glutathione peroxidase in
prostaglandin biosynthesis by the ram vesicular gland.
Vesicular glands were collected from healthy intact
rams covering a wide range of selenium nutrition and were
analyzed for selenium concentrations, glutathione
peroxidase activities and levels of prostaglandin E₂...
Dyphylline is an analog of theophylline and the latter
is the most popular member of the methylxanthine family in
use for the treatment of asthma. Although dyphylline is
devoid of some problems associated with theophylline, a
reported short half-life has made it's clinical usefulness
limited. To avoid this problem a...
This study evaluates the feasibility of retrofitting a rotary
dryer to a hog fuel boiler, using the boiler exhaust gases as the
drying medium.
Two simulation models were developed. As substantiated by experimental
measurement of existing boiler/dryer systems, each model
accurately predicts system performance given site-specific parameters
such as boiler...
A series of experiments was designed to investigate differential
flood-tolerance and the phenomenon of flood-induced stomatal closure
of several fruit tree species. The first two experiments were conducted
with potted plants submerged outdoors 5-10 cm above the soil line.
Plant morphology, growth, leaf conductance (cL), and soil oxygen diffusion
rate...