The purpose of this study is to investigate the relative performance of compact ionization chambers as it changes based on the speed of detector motion and collection volume. To quantify changes, multiple scans were made with each of a selection of compact chambers and repeated varying detector speed. Each scan...
Sites in need of restoration typically have one or more environmental factors that limit seedling establishment; identifying ecophysiological responses to environmental stressors can be advantageous in growing seedlings able to overcome such constraints on survival. To maximize survival after outplanting, seedlings should be grown in a manner that considers both...
This study was conducted to investigate the student-to-student
interactions that take place in an online community college course, and how
the interactions impact an online learning community.
The literature review revealed three related themes: (a) the impact of
the teaching/learning environment on student interaction, (b) barriers in the
online environment,...
At low latitudes, cirrus are ubiquitous and can be in
excess of 100°C colder than the surface, limiting the
amount of sunlight absorbed by the earth’s atmosphere and
surface, and reducing its loss of heat. Here we present
aircraft measurements within cirrus over southern Florida
indicating that ice crystals have...
Measurements of ice water content (IWC) and
mean ice-crystal size and concentration made by two in-situ
probes, C, VI and PVM, were compared on the DC-8 aircraft
during SUCCESS flights in orographic ice clouds. The
comparison of 1WC in these wave clouds, that formed at
temperatures of about -38 °C...
The California vernal pool-endemic grasses Orcuttia tenuis and Tuctoria greenei, both listed under the
U.S. Endangered Species Act, were recently found in Modoc County, California, a short distance south of
the Oregon border. This prompted searches in suitable habitats in adjacent portions of the Klamath Basin
in Oregon, in the...