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Filtering by: Creator Colwell, Frederick Remove constraint Creator: Colwell, Frederick Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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Geomicrobiology of marine sediment containing methane

Creator:

Briggs, Brandon R.

Abstract:

Marine sediments contain an abundance of methane that is biologically produced and plays a significant role in the global carbon cycle. Microbes responsible for the carbon cycle in marine sediments, and the processes that they carry out, need to be characterized in order to fully understand the role of this...

Resource Type:

Dissertation

Full Text:

approved: Frederick S. Colwell Marine sediments contain an abundance of methane that is
Influence of a Sedimentary Source of Nd on Deep Ocean εNd Distributions

Creator:

Abbott, April N.

Abstract:

Ocean circulation is an important component in Earth's climate system. Predicting future climate and circulation changes requires an improved understanding of the past relationship between climate and ocean currents. The neodymium isotope composition (εNd) of water masses is frequently used as a quasi-conservative tracer to reconstruct ocean circulation. The current...

Resource Type:

Dissertation
Examining parameters of vectorial capacity for mosquitoes associated with stormwater catch basins in Corvallis, Oregon

Creator:

Townzen, Jill S.

Abstract:

This research examines two of parameters of vectorial capacity for mosquitoes associated with catch basins in Corvallis, Oregon. The parameters of interest were determining 1) abundance of the mosquito species associated with the catch basins and 2) feeding patterns of local mosquito species. Three species of mosquitoes were collected from...

Resource Type:

Dissertation

Full Text:

Anderson, for their support and guidance. I would also like to thank Rick Colwell for agreeing to step
Automated web-based analysis and visualization of spatiotemporal data

Creator:

Keon, Dylan B.

Abstract:

Most data are associated with a place, and many are also associated with a moment in time, a time interval, or another linked temporal component. Spatiotemporal data (i.e., data with elements of both space and time) can be used to assess movement or change over time in a particular location,...

Resource Type:

Dissertation
Microbial diversity, metabolic potential, and transcriptional activity along the inner continental shelf of the Northeast Pacific Ocean

Creator:

Bertagnolli, Anthony D.

Abstract:

Continental shelves located along eastern boundary currents occupy relatively small volumes of the world’s oceans, yet are responsible for a large proportion of global primary production. The Oregon coast is among these ecosystems. Recent analyses of dissolved oxygen at shallow depths in the water column has suggested increasing episodes of...

Resource Type:

Dissertation

Full Text:

. Giovannoni, Dr. Peter J. Bottomley, Dr. Frederick Cowell, Dr. Allen Milligan and Dr. Kaichang Li Past and
Mode of action of vitamin K on saccharomyces cerevisiae

Creator:

Rasulpuri, Muhammad Latif

Abstract:

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...

Resource Type:

Dissertation

Full Text:

antibacterial activity of Z-methyl-1 , 4-naphthoquinone was studied by Colwell and McCall (1 3) who explained
The effect of temperature and hydrostatic pressure on protein, ribonucleic acid and deoxytibo-nucleic acid synthesis by Vibrio marinus, an obligate psychrophile

Creator:

Albright, Lawrence John

Abstract:

The marine psychrophilic bacterium Vibrio marinus MP-4 possessed a maximum temperature and hydrostatic pressure of 20 C and 425 atm for growth. The effects of temperatures of 21 and 25 C and hydrostatic pressures of 200, 400, 500, and 1,000 atm on protein, RNA and DNA synthesis by V. marinus...

Resource Type:

Dissertation

Full Text:

). The organism was subsequently identified by Colwell and Morita as Vibrio marinus MP -4 (5). The
The rotational motion of molecules in crystalline solids

Creator:

Miller, R. E.

Abstract:

Theoretical studies and experimental results are presented for the rotational motion of molecule's in crystalline solids. The group theory is solved for molecules of any symmetry matrix isolated at a site in a crystal field of any symmetry. As the potential terrier to rotation of the molecule relative to the...

Resource Type:

Dissertation

Full Text:

. I particularly want to thank Dr, Lou Allamandola, Mr. Larry Frederick- son, Mr. Mike Lesiecki, Mr
Interactive visualization of diversity in multivariate data sets unified across fields of study

Creator:

Pham, Tuan N. T.

Abstract:

The study of the diversity of multivariate objects shares common characteristics across disciplines, including ecology and organizational management. Nevertheless, experts in these two disciplines have adopted somewhat separate diversity concepts and analysis techniques, limiting the ability of potentially sharing and cross comparing these concerns. Moreover, while complex diversity data may...

Resource Type:

Dissertation

Full Text:

moth data set; to Professor Frederick Swanson and Robert Pabst for their contribution to the
Soil community dynamics in sagebrush and cheatgrass-invaded ecosystems of the northern Great Basin

Creator:

DeCrappeo, Nicole M.

Abstract:

Sagebrush steppe ecosystems in the Great Basin have become increasingly threatened by the proliferation of cheatgrass (Bromus tectorum L.), an invasive annual grass. Diverse sagebrush and perennial bunchgrass landscapes can be converted to homogenous cheatgrass grasslands mainly through the effects of fire. Although the consequences of this conversion are well...

Resource Type:

Dissertation

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Academic Affiliation

College of Earth, Ocean, and Atmospheric Sciences2
College of Oceanic and Atmospheric Sciences2
Microbiology2
Rangeland Resources2
Botany and Plant Pathology1
more Academic Affiliations »

Advisor

Giovannoni, Stephen J.2
Bottomley, Peter J.1
Buckhouse, John C.1
Chen, Tony H. H.1
Colwell, Frederick S.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1963 to 2017

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Committee Member

Colwell, Frederick2
Colwell, Frederick S.2
Anthony, Robert G.1
Bailey, Mike1
Belnap, Jayne1
more Committee Members »

Creator

Abbott, April N.1
Albright, Lawrence John1
Bertagnolli, Anthony D.1
Briggs, Brandon R.1
Decrappeo, Nicole M.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1963 to 2017

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Decade

2010-20199
2000-20093
1990-19991
1980-19892
1970-19792
1960-19692

Degree Field

Geography2
Microbiology2
Oceanography2
Rangeland Resources2
Botany and Plant Pathology1
more Degree Fields »

Degree Level

Doctoral19

Degree Name

Doctor of Philosophy (Ph.D.)[remove]19

Language

English [eng]19

License

All rights reserved10

Non-Academic Affiliation

Oregon State University. Graduate School[remove]19

Peer Reviewed

No19

Resource Type

Dissertation19

Rights Statement

In Copyright13
Copyright Not Evaluated6

Subject

Information visualization2
Microbial metabolism2
Abscisic acid1
Anoxic zones -- Oregon -- Pacific Coast1
Bacterial genetics1
more Subjects »

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