Many new research and monitoring projects, developed or initiated during ENSO 1982-83, constituted detailed descriptions of changes in specific taxa or specific processes. However, only a few projects were opportunely started or continued as regional efforts in the eastern Pacific. For those reasons, the information obtained is difficult to compare....
The distribution patterns of quartz and opal contents and the distribution
patterns of radiolarian assemblages, in the sediments of the
southeastern Pacific, are largely controlled by both the surface winds
and the mixed-layer oceanic circulation. The distribution pattern of
quartz is related to eolian and ice-rafted transport, as well as...
Micropaleontological data have been analyzed through mathematical
and statistical procedures, in order to: (1) establish the distribution
pattern of radiolarian assemblages in the surface sediments,
(2) establish the relationship of these assemblages with oceanographic
variables, (3) determine the faunal composition down-core with
respect to the faunal surface pattern, and (4)...
During the U.S. military interventions in Nicaragua, the Dominican
Republic, and Haiti between 1915 and 1934, Washington equipped
members of the its armed forces with civil and political powers that
represented a radical departure from the North American military tradition.
This abandonment of tradition decisively contributed to both the
disappointments...
Although 4- and 5-diacetamidopyrimidines have been reported
in the literature within the past eleven years, it was not until 1965
that a 2-diacetamidopyrimidine was reported. The current investigation
was undertaken to determine whether other 2-diacetamidopyrimi-dines could be synthesized and what the effect of various nuclear substituents would be on the...
The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
A series of studies was conducted to determine the presence
of tobacco rattle virus (TRV), potato virus X (PVX), and other
viruses in wild plants and to evaluate the efficacy of the detection
methods; to characterize and purify an isolate of TRV; and
to study the interaction between TRV and...
Graphis robertusii Bárcenas-Peña, Herrera-Campos y Miranda es descrita por primera vez para la selva alta perennifolia de Los Tuxtlas, Veracruz. Es una especie conspicua caracterizada por lirelas erumpentes con margen talino lateral, labios no estriados blancos pruinosos, excípulo completamente carbonizado, himenio insperso, esporas transversalmente septadas y ácidos estíctico, salazínico y...
This compilation by the School of Oceanography of Oregon State University lists in chronological order the oceanographic reports published in 1975 and 1976. It also lists theses for which degrees were awarded in 1976. This is the third annual update of our reference 74-1 which brought together a listing of...