This study was designed to investigate a phenomenon, retention of Hispanic adult second language learners in Washington State's community colleges, from a qualitative paradigm and phenomenological approach. The focus of this study was to capture eight foreign-born Hispanic ESL non-continuators' voices and experiences, in their native language of Spanish, who...
Montane meadows in the Cascade Range of Oregon have been declining due to tree establishment since records began. Montane meadow complexes in the H.J. Andrews Experimental Forest shrank by 60 to 75% from 1949 to 2005, but fine scale temporal and spatial processes of tree establishment in these meadows are...
We explain a new method of detecting non point source fecal contamination using a PCR based method called Touchdown Polymerase Chain Reaction (TD-PCR). Using genetic markers particular to general, ruminant and human Bacteroides- Prevotella genes, we identified presence in both fresh and salt water environments. Water samples from four sites...
Polymer samples of polytetrafluoroethylene (PTFE) and a PTFE-glass weave (RF- 35P) are exposed to low pressure, non-equilibrium glow discharge plasmas for enhanced wettability as measured by static contact angles. Plasma treatments are performed in two parallel plate RF plasma systems, a downstream microwave plasma and a barrel etcher using feed...
The XEPHWICH system is a phoswich type (multiple scintillator) radiation
detector designed to detect several radioxenon isotopes with the goal of identifying covert
nuclear explosions. The XEPHWICH system is designed with the sole purpose of
replacing the Automated Radio-xenon Sampler/Analyzer (ARSA) in the United Nation's
(UN) Comprehensive Test Ban Treaty's...
The study was undertaken to determine the seasonal and diurnal
flight patterns of scolytid beetles inhabiting a second growth
forest of Douglas-fir (Pseudotsuga menziesii (Mirb.)Franco) in western
Oregon. Air temperatures, relative humidity, light intensity, and wind
velocities were recorded for evaluation of their influence on flight activity.
The insects were...
Major objectives of the study involved development of a laboratory
procedure to obtain mating, determining characteristics of female
sex attraction, and determination of the effects of temperature and
humidity on mating and fecundity. The second of two methods devised
to obtain mating, "the vertical airflow technique," was convenient to
employ...