Comparative morphological and anatomical studies of the dispersal mechanisms
characterizing the wheat complex (Triticum L. and Aegilops L.) have documented
patterns of adaptive radiation which may have significance for evolutionary
relationships. These patterns, which form an array of diverse types of diaspores
among the diploid taxa, appear conceptually to have...
A study was undertaken in Yaquina Bay, Oregon during the
summer of 1964 to determine the distribution and the factors affecting
the distribution of the polychaete worm, Nephtys caecoides,
Hartman, 1938, in the estuary.
This organism has a continuous distribution from offshore to
a point approximately eight kilometers into the...
The purposes of this investigation were: (l) To attempt to
determine how well programs of guidance services were felt to be
functioning in meeting the needs of pupils through an analysis of
guidance services in selected high schools in Oregon, and (2) To
develop recommendations for improving programs of guidance...
Magnetotelluric (MT) data from two sites 150 and
300 km southeast of San Francisco, California (geomagnetic
dipole latitude: 43 degrees, L approximately 1.9) show that
the usual MT assumption of spatially uniform external magnetic
fields is violated to a significant degree in the period
range 10-30 s. Inter-station transfer functions...
Full Text:
. Sierra Boyd, And H. FrankMorrison
GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 10, PAGE 1565, MAY 15
Magnetotelluric (MT) data from two sites 150 and
300 km southeast of San Francisco, California (geomagnetic
dipole latitude: 43 degrees, L approximately 1.9) show that
the usual MT assumption of spatially uniform external magnetic
fields is violated to a significant degree in the period
range 10-30 s. Inter-station transfer functions...
Full Text:
. Sierra Boyd, and H. FrankMorrison
Engineering Geoscience, University of California, Berkeley, CA
Electric and magnetic fields in the (10−4–1.0) Hz band were monitored at two sites
adjacent to the San Andreas Fault near Parkfield and Hollister, California, from 1995 to
2007. A data window (2002–2005), enclosing the 28 September 2004 M6 Parkfield
earthquake, was analyzed to determine if anomalous electric or magnetic...
Magnetotelluric (MT) data from two sites 150 and
300 km southeast of San Francisco, California (geomagnetic
dipole latitude: 43 degrees, L approximately 1.9) show that
the usual MT assumption of spatially uniform external magnetic
fields is violated to a significant degree in the period
range 10-30 s. Inter-station transfer functions...
Published April 1962. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Concern about college and career readiness has been expressed in both the
business and education arenas. Employers are calling for entry-level employees with
basic academic skills and educators are being held accountable for student
achievement in academic areas similar to those required by employers. In this
environment, WorkKeys has emerged...
The objective of this study was to evaluate the influence of cow age on grazing distribution relative to mountain riparian areas. In each of two years, sixty cow-calf pairs were stratified by age into the following treatments: 1) thirty first calf heifers (442 kg, body condition score (BCS)=4.5), and 2)...
Revised January 1985. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
In order to decrease Lyme disease prevalence it is crucial to understand the role of the black-legged tick, Ixodes scapularis, and its hosts within the ecosystem. This study sought to validate stable isotope analysis as a method of determining tick blood meals by comparing the δ¹³C and δ¹⁵N of the...
While the use of powered mobility devices for young children with mobility challenges has taken off in recent years following evidence that the use of powered mobility at a young age augments other traditional mobility skill interventions, the research is still limited and focuses on physical impacts more. Recently, the...
The relationships between avian community structure and herbicide
modification of vegetation were analyzed on early-growth clearcuts in
western Oregon that had received phenoxy herbicide treatment 1 or
4 years previously. Only minor effects of herbicide treatment were
evident 1-year after spraying, except for red adler (Alnus rubra),
which still exhibited...
Interest in the distribution of Clostridium botulinum type E
was heightened by the sudden outbreak of human botulism from
smoked whitefish chubs and canned tuna fish in 1963. The question
arose as to how widely the organism is distributed among fish
and shellfish in the Northwest and what potential hazard...