Farmers typically use three applications of glyphosate to control weeds in no-till fallow. Some are now experimenting with an unconventional modification to this widely used approach. This modified approach is based on an intentional delay in the time of the first spraying. Farmers delay their first spraying because they want...
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Larry K. Lutcher* 5
Farmers typically use three applications of glyphosate to control weeds in no
Turbulence measurements for very stable conditions near the surface are contrasted
among three sites: a high altitude basin during winter with grass or snow-covered
grass, a broad valley with complex agricultural land use, and a more narrow valley that is
influenced by a valley cold pool and cold air drainage....
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Non-stationary Generation of Weak Turbulence
0 2 4 6 8
This study investigates the exchange of momentum between the atmosphere and ocean using data collected from four oceanic field experiments. Direct covariance estimates of momentum fluxes were collected in all four experiments and wind profiles were collected during three of them. The objective of the investigation is to improve parameterizations...
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. PLUEDDEMANN,1 CHRISTOPHER W. FAIRALL,# SCOTT D. MILLER,@ LARRY MAHRT,&
DEAN VICKERS,& AND HANS HERSBACH
Silicic volcanism in the central Oregon Cascade range has decreased in both the size and frequency of eruptions from its initiation at ~40 Ma to present. The reasons for this reduction in silicic volcanism are poorly constrained. Studies of the petrogenesis of these magmas have the potential for addressing this...
Diatoms are a ubiquitous group of plankton responsible for 20-40% of oceanic
primary production, and a higher fraction of organic matter export to the ocean
interior. Diatoms actively transport dissolved inorganic silicon into their cells, and
through the process of silicification (i.e. biogenic silica production) they build tough
and intricate...
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DISSERTATION OF
Jeffrey W. Krause for the degree of Doctor of Philosophy in Oceanography presented
on
Nematodes within the Xiphinema americanum species complex are economically important because they vector
nepoviruses which cause considerable damage to a variety of agricultural crops. The taxonomy of X. americanum species
complex is controversial, with the number of putative species being the subject of debate. Accurate phylogenetic
knowledge of this group...
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americanum Species Complex
Inga A. Zasada1*, Amy Peetz1, Dana K. Howe2, Larry J. Wilhelm2, Daravuth Cheam2
Graduate teaching assistants (GTAs) in science, technology, engineering, and mathematics (STEM)
have a large impact on undergraduate instruction but are often poorly prepared to teach. Teaching
self-efficacy, an instructor’s belief in his or her ability to teach specific student populations a specific
subject, is an important predictor of teaching skill...
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38. I feel accepted by (Anglo) Americans.
39. I have many (Anglo) American acquaintances.
3