Inclusive polarized proton-nucleus scattering at 290 and 500 MeV was
performed using a ²⁰⁸Pb(51 mg/cm²) target. A broad range (0-250 MeV) of
excitation energy has been studied over the 4° - 27° angular range. The measured analyzing power and cross section of the continuum are compared with
the recent DWIA...
Small amounts of carbon from glucose and leucine added at natural
concentrations to seawater were biologically transformed to higher
molecular weight (MW) dissolved materials which persisted through six
months of incubation. These materials were resistant to biological
utilization: only 1 to 17% of the higher MW carbon was respired when...
Coho salmon smolts (Oncorhynchus kisutch) were transported at low and high densities. (12 and 120 g/L) for short and long periods (4 and 12 h). Because smolts can be transplanted directly to seawater, half of the fish in each treatment were transported to tanks containing seawater and half to tanks...
Aflatoxin B₁ (AFB₁,) is a potent liver carcinogen to a number
of animal species including rainbow trout (Salmo gairdneri).
Microsomal activation is required for the in vitro conversion of
AFB, to a reactive metabolite, thought to be the AFB₁,-2,3-oxide,
which will bind nucleic acids, produce toxicity, and cause mutagenesis.
Nucleic...
John Wesley Powell worked actively for public land system
reform while a director of geographical and geological surveys in
the West from 1869 to 1894. Although this has won him acclaim as a
conservationist, the basis of Powell's linkage of reform with
scientific work is poorly understood.
A study of...
Due to an interest in the evolutionary origins of
vertebrate mechanisms of immunorecognition, researchers
have frequently turned to deuterostome invertebrates as
model organisms. The purple sea urchin, Strongylocentrotus
purpuratus (Echinodermata: Echinoidea), was selected for
this study of putative immunorecognition molecules in a
deuterostome invertebrate.
Hemagglutinins, molecules which agglutinate red blood...
A study, consisting of two sequential greenhouse experiments, was
designed to determine the effects of soil liming upon the fungal
partner in a mycorrhizal association. A Willamette Valley foothill
soil, of the Jory series, was limed in increments to achieve a range
of acidity and alkalinity. The P-deficiency and P-fixing...
The purpose of this study, to examine the relevance of U.S.
graduate education in agriculture to careers in agricultural
development of East African agriculturalists, was examined in
terms of three problems:
Problem 1: Was U.S. graduate education in agriculture
relevant to careers in agricultural development of East
African agriculturalists?
Problem...