Fire-history reconstructions are based on tree-ring records that span the last few centuries and charcoal data
from lake-sediment cores that extend back several thousand years. The two approaches have unique strengths and
weaknesses in their ability to depict past fire events and fire regimes, and most comparisons of these datasets...
This study analyzes past forest fire behavior on a selected area
in the Oregon Cascades in an attempt to evaluate level of fire hazard
on selected vegetational areas. Vegetational areas were defined in
five broad classes: Merchantable Douglas-fir Stands, Non-merchantable
Douglas-fir Stands, Oak- Madrone Stands, Non- forest
Lands, and Non-stocked...
This study deals with intergenerational differences in the
industrial environment. Rapid changes in our social and technological
society suggest the characteristics of dogmatism and trust as possible
indicators of differences between practicing professionals and upper
division university students.
Each subject's reaction to change was measured through administration
of Rokeach's Dogmatism...
In CIAT, Centro Internacional de Agricultura Tropical, located
in Palmira, Colombia, a series of experiments were conducted to study
the biology and control of mudplantain (Heteranthera reniformis Ruiz
et Pavon), a member of Pontederiaceae family.
Mudplantain is a perennial aquatic plant which reproduces by both
seeds and stolons. It is...
Publication restrictions have been removed. This report is one of a series issued in cooperation with the Army-Navy-Civil Committee on Aircraft Design Criteria under the supervision of the Aeronautical Board.
Straw has many uses, as feed, roughage, animal bedding, but
these requirements are not sufficient to utilize the available production.
In areas where grasskseed is produced, post-harvest straw is
burned in the field to help prevent crop disease the following year.
This treatment is very wasteful in terms of straw...
Zebrafish (Brachydanio rerio) are small, freshwater teleost fishes in the family
Cyprinidae, the true minnows. They are native to the tropical latitudes of India, but
have become widespread through their use as aquarium fish and as models for several
branches of biological research. Their ease of rearing, short generation time,...
The nature of a natural antioxidant present in shrimp was
investigated.
Shrimp extracts were prepared using different solvents to
ascertain the best extraction method. The antioxidant activity was
determined using the (β-carotene-linoleate model system and the
oxygen weighing method. Ethanol proved to be the best solvent for
extracting the natural...
The lentil strain of pea seedborne mosaic virus, PSbMV-L, was
distinguished from the standard isolates of PSbMV by a natural inoculum
reservoir in lentil seed and by separate resistance genes in Pisum
and Lens. PSbMV-L was intermediate in symptom severity between the
standard and New Zealand isolates of PSbMV.
Seed...
