A summary of the first. year's results in a program of current measuring techniques employing the electromagnetic method is presented. The data was taken on hydrographic survey cruises ranging to 165 miles offshore from Oregon. The measurements in this first phase consist solely of those taken by the method of...
One of the important ‘hallmarks’ of cancer is angiogenesis, which is the process of formation of new blood vessels that are necessary for tumor expansion, invasion and metastasis. Under normal physiological conditions, angiogenesis is well balanced and controlled by endogenous proangiogenic factors and antiangiogenic factors. However, factors produced by cancer...
Heavy biodegraded crude oils have larger numbers of coeluting compounds than non- biodegraded oils, and they are typically not resolved with conventional gas chromatography (GC). This unresolved complex mixture (UCM) has been investigated using comprehensive two- dimensional gas chromatography-time-of-flight mass spectrometry (GCxGC-ToFMS) within a set of biodegraded petroleums derived from...
A gene's duplication relaxes selection. Loss of duplicate, low-function DNA (fractionation) sometimes follows, mostly by deletion in plants, but mostly via the pseudogene pathway in fish and other clades with smaller population sizes. Subfunctionalization — the founding term of the Xfunctionalization lexicon — while not the general cause of differences...
Analysis of suspended particulate material (SPM) collected from the Columbia River and its estuary in 2007–2008 revealed the ubiquitous presence of polycyclic aromatic hydrocarbons (PAHs) from several distinct sources. The two dominant ones were: (1) a suite of non-alkylated, three to five-ringed compounds derived from high temperature combustion and (2)...
The first cycle of seismic waves recorded at distances of 45,
300 and 355 km. from the GNOME nuclear explosion was used to determine
whether the near source wave characteristics at 0.3 km.
could be determined from distance measurements. Both head wave
and body wave propagation were considered. First the...
Harbor porpoises (Phocoena phocoena) are commonly observed in Oregon's nearshore marine environment yet knowledge of their ecosystem use and behavior remains limited, generating concerns for potential impacts on this species from future coastal development. Passive acoustic monitoring was used to investigate spatial and temporal variations in the presence and foraging...
The cellular dynamics of the intestinal epithelium in the coho
salmon, Oncorhynchus kisutch, has been studied to determine the effects of temperature and whole-body X-irradiation.
In vivo experiments utilizing colchicine mitotic inhibiting technique and tritiated
thymidine (³H-TdR) radioautography were employed in order to
evaluate the kinetics of the cell population....