Seismic refraction, reflection and gravity data obtained
across the Peru continental margin and Nazca Plate
at 9° S. permit a detailed determination of crustal structure.
Complex structures normal to the profile require the
development of a ray trace technique to analyze first and
later arrivals for eleven overlapping refraction lines....
Reinterpretation of the leafhopper tribe Scaphytopiini reveals it
to be primarily a New World taxon with only limited representation in
the Palearctic, Oriental and possibly Ethiopian regions. Approximately
75 species assigned to three genera are known from the United
States and Canada with at least another 75 species representing an...
Several experiments were carried out on Coturnix coturnix
japonica to investigate the effect of selection for growth on a protein
deficient ration. A level of 27% protein was found to be optimum for
three different strains and 17.8% was the lowest protein level used
that allowed for growth and accordingly...
The Nearctic leafhoppers placed in the genus Sorhoanus Ribaut
by Oman (1949) were found to belong to several genera, some of
which are Holarctic in distribution. None is properly placed in
Sorhoanus as presently defined. The genera Sorhoanus, Zelenius
Emel'yanov, Boreotettix Lindberg, Lebradea Remane, and Acharis
Emel'yanov are redefined and...
The effect of cycling temperatures on production of aflatoxin
by Aspergillus flavus (V3734-10) when grown upon various substrates
was studied. The parameters of temperature and time were selected
to simulate environmental conditions in Oregon during harvest of
filberts and walnuts. The heat input required for aflatoxin synthesis
in terms of...
Technological advances of the last three decades have caused an enormous increase in the amount of published and unpublished information generated by our society. This inflation has created the need for improved information management systems. Existing systems are inadequate primarily because they are discipline-oriented and lack the flexibility that is...
The role of estradiol- 17β, progesterone and prostaglandin F₂α (PGF₂α) in altering contractility of uterine vascular smooth muscle was investigated. A segment of uterine artery (3. 5 cm) supplying each uterine horn of ewes and heifers were removed at necropsy and perfused with oxygenated Krebs Henseleit Solution prior to initiating...