More than 2,000 male newts were collected during the summer
and maintained unfed at 10°C both pre- and post-irradiation.
Exposures ranging up to 30 kR were given with 300 kVp X-rays and
⁶⁰Co gamma rays. Half of the newts were injected (I. P.) with 15 g
DMSO/kg (the maximum sublethal...
Studies in other laboratories have established the presence of
the Embden-Meyerhof-Parnas (EMP) pathway and the pentose phosphate
(PP) pathway in plant tissue. Research in this laboratory with mung
bean (Phaseolus aureus) seedlings has confirmed the presence of these
two pathways as well as the glucuronic acid (GA) pathway. However,
no...
The purpose of this study was to examine the culture
supernatants of various strains of Clostridium botulinum
for characteristic extracellular enzymes which can facilitate
their rapid identification.
A convenient, efficient, water-cooled flat gel electrophoretic
unit was utilized to concentrate and purify the
total proteins and extracellular enzymes present in the...
This analysis is the study of Oregon's wildlife resources from
the period prior to white settlement up to the present time, including
critical projections, based on present trends and expected conditions
for both human and wildlife populations in the state up to the year 2010.
Prior to white settlement Oregon...
Virtually nothing is known regarding the quantitative significance
of the several catabolic sequences involved in the breakdown of
glucose in the intact rat. Studies in this and other laboratories have
shown that the Embden-Meyerhof-Parnas pathway, the pentose
phosphate pathway and the glucuronic acid pathway are operative in
several tissues of...
This analysis concerns the life and scientific work of Henry
Augustus Rowland (1848-1901), organizer and the first chairman of
the physics department at The Johns Hopkins University in 1876.
Special materials used in this research included three pieces of
Rowland's experimental apparatus which are extant in the Smithsonian
Institution Division...
Solutions to the variable permeability magnetostatic field
problem are achieved in both rectangular and cylindrical coordinates
for a wide variety of magnet geometries. The resulting
difference equations are solved iteratively and a method is
provided which substantially increases the rate of convergence
for these type of problems. Magnetization curves for...
The purpose of this investigation was to evaluate the effects of
a six week residential summer program of differential education for
gifted high school students. It was designed to determine the extent
to which participants in the program were proficient in aspects of
critical and creative thinking, and in the...
The uptake, retention, and distribution of ⁶⁰Co, ⁶⁵Zn, ⁸⁵ Sr, and ¹³¹I was examined in the Rough-Skinned Newt (Taricha granulosa). Each of these radionuclides is a possible contaminant of the freshwater environment and, thus, is of importance in radioecology. The newts were maintained singly at 10° C in an unfed...
Laboratory experiments and simulated field conditions were
utilized to gain a better understanding of the ecology of the clouded
salamander.
Animals collected in western Oregon were utilized for studies
in habitat selection, where it was shown that there was a significant
pattern of selection of litter types (rock, bark, and...