The vast marine deep biosphere consists of microbial habitats within sediment, pore waters, upper basaltic crust and the fluids that circulate throughout it. A wide range of temperature, pressure, pH, and electron donor and acceptor conditions exists—all of which can combine to affect carbon and nutrient cycling and result in...
Long-term ecological data are crucial in helping ecologists understand ecosystem function and environmental change. Nevertheless, these kinds of data sets are difficult to analyze because they are usually large, multivariate, and spatiotemporal. Although existing analysis tools such as statistical methods and spreadsheet software permit rigorous tests of pre-conceived hypotheses and...
Coring/logging data and physical property measurements from International Ocean Discovery Program Expedition 349 are integrated with, and correlated to, reflection seismic data to map seismic sequence boundaries and facies of the central basin and neighboring regions of the South China Sea. First-order sequence boundaries are interpreted, which are Oligocene/Miocene, middle...
Combined analyses of deep tow magnetic anomalies and International Ocean Discovery Program Expedition 349 cores show that initial seafloor spreading started around 33 Ma in the northeastern South China Sea (SCS), but varied slightly by 1-2 Myr along the northern continent-ocean boundary (COB). A southward ridge jump of ∼20 km...
Greenhouse gases effects are a leading contributor to climate change; reducing harmful effects of these gases is important for future generations. Worldwide, household consumption makes up seventy-two percent of greenhouse gas emissions, followed by government consumption at ten percent, and investments at eighteen percent (Hertwich, 2009). In order to understand...
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By Kimberly Melendez
F. Colwell, Ph.D.1, R. Gonzalez, MIDP2 Oregon State
University, Corvallis
Greenhouse gases effects are a leading contributor to climate change; reducing harmful effects of these gases is important for future generations. Worldwide, household consumption makes up seventy-two percent of greenhouse gas emissions, followed by government consumption at ten percent, and investments at eighteen percent (Hertwich, 2009). In order to understand...
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FrederickColwell, Mentor, representing College of Earth, Ocean, and Atmospheric Science
Bitterbrush (Purshia tridentata (Pursh) DC.) is one of the most widely distributed shrubs in western North America. Its value as a browse species has been recognized for more than half a century. Recent concern for the ecological significance of shrubs in natural ecosystems and the serious depletion of many big...
Extraction of natural gas from shale formations using the process of hydraulic fracturing (fracking) requires the use of thousands of cubic meters of fluid. Hydraulic fracturing fluids are pumped under pressure into shale formations, fracturing the shale and releasing pockets of trapped gases. When the pressure in a natural gas...
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. FrederickColwell and Dr. Andrew Thurber
Dr. Marta Torres
Dr. Field and Wanda Crannell
Jessie Wishart
Compounds belonging to the vitamin K family possess anti-hemorrhagic
property, and are used in treating patients suffering
from hypoprothrombinemia and obstructive jaundice. Some of
these compounds also exhibit marked antimicrobial activity toward
various microorganisms. Vitamin K₅, 4-amino-2-methyl-
1-naphthol hydrochloride, a water-soluble analog of vitamin K
has been shown to possess...
Although much has been learned about the comparative
nodulating behavior of simple mixtures of rhizobial strains
under non-soil situations, it is unclear how these findings
relate to the factors influencing nodulation success by the
complex mixtures of strains found within soil-borne
rhizobial populations. Information on the structure and
physiological behavior...