Coastal communities in the U.S. Pacific Northwest (PNW) are rapidly engaging with the idea that hazards and environmental pressures are changing and may be characteristically different in the near future. This has led to a need for scientific knowledge and tools that can help coastal communities prepare and build resilience...
The 100 North Pacific rockfish species in the genus Sebastes are highly diverse. Rockfishes fertilize their eggs internally and release swimming larvae. Complex courting behaviors may allow female rockfish to be selective about their mates and may promote and maintain speciation. In this study, I applied genetic techniques to survey...
The physiological adaptations involved in the seasonal and altitudinal regulation of the life cycle in Allonemobius fasciatus were
studied.
This species maintains a univoltine life cycle with an embryonic
diapause over an altitudinal gradient of as large as 1,000 m. A more
than 1.5 -month difference exists in hatching time...
It is desirable for complex engineered systems to perform missions efficiently and economically, even when these missions' complex, variable, long-term operational profiles make it likely for hazards to arise. It is thus important to design these systems to be resilient so that they will actively prevent and recover from hazards...
Selected nonionic surface active agents, incorporated in various
ointment bases, were applied to normal rabbit skin daily in an attempt
to determine their chronic toxicity. The dermatitic effects of these
surfactant preparations were evaluated by three methods: gross observation,
histological examination and biochemical techniques. The
results indicated that the tested...
A new x-ray source capable of operating at up to 80
watts has been designed and developed, and put to use with
the Oregon State University Cylindrical Electrostatic
Analyzer. The new source produces over four times the
photoelectron intensity of its predecessor, from gaseous
samples, and accommodates a wider selection...
Hexachlorophene (HCP; 2,2'-methylenebis-(3,4,6-trichlorophenol))
was developed as an antibacterial agent but was also found to induce
toxic effects in various tissues in animals and humans. Changes were
found in myelinated nerve fibers and cerebral white matter. Erythrocytes
are hemolysed in vitro. Oxidative phosphorylation is uncoupled
by HCP at concentrations less than...
Submerged aquatic vegetation (SAV) species, such as seagrasses, are highly valued in estuaries because of the many economic, ecological, and cultural services that they provide, including shelter for fisheries, minimizing water turbidity, and improving am-bient water quality. SAV can also alter its physical environment by attenuating wave and current velocities,...
Toxin production by cyanobacterial harmful algal blooms (cyanoHABs) in freshwater systems has lasting ecological and human impacts. Nutrients, light availability, hydrology, and microbial community composition impact the frequency and intensity of toxic cyanoHABs. Climate change will exacerbate toxic cyanoHABs, making real time and predictive monitoring a vital tool for managing...