Bioelectric responses from the isolated eye of the purple shore
crab were measured by the electroretinogram with stimulation by
light from wavelengths of 250 to 800 nm, strontium-yttrium-90 beta
radiation, 17.5 keV x-radiation, and 3-cm microwaves.
Peak sensitivities to light stimulation were found at 350 and 500
nm. These peaks...
Fifty species and subspecies and six varieties in eight genera of
the family Tabanidae are recognized from Oregon. The following genera
are represented in Oregon: Apatolestes Williston, Pilimas Brennan,
Stonemyia Brennan, Silvius Meigen, Chrysops Meigen, Atylotus Osten
Sacken, Hybomitra Enderlein and Tabanus Linnaeus. Adults and larvae
were collected from various...
The effects of post-harvest burning of red fescue on production of shoots, roots and inflorescences as well as seed yield were determined at the clonal and community level by comparing fescue plants in a burned area with those in unburned plots within the same field. Studies were also conducted to...
Records of 889 litters of three populations of swine farrowed
between 1962 and 1973 were analyzed by least squares procedures.
Estimates were obtained for the effects of age and inbreeding of dam,
inbreeding of litter, inbreeding of dam's dam and inbreeding of the
sire of the litter on litter size...
The objective of this study was to determine the effect that
ration formulation has on volatilization of gases and offensiveness of
the odor associated with the wastes produced from Holstein replacement
heifers. Six separate experiments were conducted to study the
relationships between different variables on the release of hydrogen
sulfide,...
Detailed bathymetric survey data were collected along the Peruvian
continental margin and were compiled by the author and other
investigators to construct a new bathymetric map for the area between
6° to 18°S latitude. Based on this map and individual bathymetric
profiles, the continental shelf topography is essentially flat. Four...
In order to determine whether the sediments found on the landward
wall of the Peru Trench are accreted Nazca Plate sediments,
the clay mineralogy and organic carbon contents of 52 surface
samples were submitted to factor analysis. Q-mode factor analysis
resolved the data from the Nazca Plate and Peru continental...