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Articles 31 - 39 of 39

Full-Text Articles in Physical Sciences and Mathematics

Ecological, Physiological, And Bio-Optical Characteristics Of Phaeocystis Globosa In Coastal Waters Of South Central Vietnam, Xiao Liu Jan 2011

Ecological, Physiological, And Bio-Optical Characteristics Of Phaeocystis Globosa In Coastal Waters Of South Central Vietnam, Xiao Liu

Dissertations, Theses, and Masters Projects

No abstract provided.


The Impacts Of Shoreline Development On Shallow-Water Benthic Communities In The Patuxent River, Md, Cassie D. Bradley Jan 2011

The Impacts Of Shoreline Development On Shallow-Water Benthic Communities In The Patuxent River, Md, Cassie D. Bradley

Dissertations, Theses, and Masters Projects

Natural coastal habitats throughout Chesapeake Bay are increasingly threatened with shoreline modification due to population growth and rising rates of development. The replacement of these natural coastlines with hardened structures such as seawalls (bulkheads) and stone revetments (riprap) not only compromises vegetation at the land-water interface, but also can influence several elements of local aquatic food webs. Effects of these alterations have been well-studied with respect to fish assemblages and intertidal communities, particularly in conjunction with larger-scale watershed development, and recently, interest has shifted toward investigation of the effects of shoreline development on subtidal benthic infaunal communities.
This study evaluated …


Molecular Marker Development For The Discrimination Of Atlantic And Pacific Blue Marlin (Makaira Nigricans), Laurie Sorenson Jan 2011

Molecular Marker Development For The Discrimination Of Atlantic And Pacific Blue Marlin (Makaira Nigricans), Laurie Sorenson

Dissertations, Theses, and Masters Projects

No abstract provided.


Net Microbial Activity, Vegetation Dynamics, And Ecosystem Function In Created And Natural Palustrine Forested Wetlands In Southeastern Virginia, Usa, Christian A. Hauser Jan 2011

Net Microbial Activity, Vegetation Dynamics, And Ecosystem Function In Created And Natural Palustrine Forested Wetlands In Southeastern Virginia, Usa, Christian A. Hauser

Dissertations, Theses, and Masters Projects

No abstract provided.


Development Of A Method For Quantifying The Air-Sea Flux Of Volatile Organic Carbon, Emily A. Jayne Jan 2011

Development Of A Method For Quantifying The Air-Sea Flux Of Volatile Organic Carbon, Emily A. Jayne

Dissertations, Theses, and Masters Projects

No abstract provided.


Abiotic Release Of Low Molecular Weight Nitrogen From Effluent Organic Nitrogen, Carolina P. Funkey Jan 2011

Abiotic Release Of Low Molecular Weight Nitrogen From Effluent Organic Nitrogen, Carolina P. Funkey

Dissertations, Theses, and Masters Projects

No abstract provided.


A Measurement Of Neutrino Oscillations With Muon Neutrinos In The Minos Experiment, Stephen James Coleman Jan 2011

A Measurement Of Neutrino Oscillations With Muon Neutrinos In The Minos Experiment, Stephen James Coleman

Dissertations, Theses, and Masters Projects

Experimental evidence has established that neutrino flavor states evolve over time. A neutrino of a particular flavor that travels some distance can be detected in a different neutrino flavor state. The Main Injector Neutrino Oscillation Search (MINOS) is a long-baseline experiment that is designed to study this phenomenon, called neutrino oscillations. MI-NOS is based at Fermilab near Chicago, IL, and consists of two detectors: the Near Detector located at Fermilab, and the Far Detector, which is located in an old iron mine in Soudan, MN. Both detectors are exposed to a beam of muon neutrinos from the NuMI beamline, and …


Search For Effects Beyond The Born Approximation In Polarization Transfer Observables In Ep Elastic Scattering, Mehdi Meziane Jan 2011

Search For Effects Beyond The Born Approximation In Polarization Transfer Observables In Ep Elastic Scattering, Mehdi Meziane

Dissertations, Theses, and Masters Projects

Intensive theoretical and experimental efforts over the past decade have aimed at explaining the discrepancy between data for the proton electric to magnetic form factor ratio, GE/GM, obtained separately from cross section and polarization transfer measurements. One possible explanation for this difference is a two-photon-exchange (TPEX) contribution. In an effort to search for effects beyond the one-photon-exchange or Born approximation, this thesis reports measurements, of the GEp2gamma experiment, of polarization transfer observables in the elastic H ( e&ar;,e' p&ar; ) reaction for three different beam energies at a fixed squared momentum transfer Q² = 2.5 GeV², spanning a wide range …


Mercury Exposure Assessment Of South River Floodplain Birds, Jincheng Wang Jan 2011

Mercury Exposure Assessment Of South River Floodplain Birds, Jincheng Wang

Dissertations, Theses, and Masters Projects

The studies involved in this thesis expanded the current project being conducted in Dr. Newman’s laboratory that aimed to define and quantify the impacts of mercury movement in contaminated aquatic and terrestrial food webs in the South River watershed (Virginia, USA). This expansion involved a two phase study, which fulfilled the requirement of a master thesis.

Previous research in our lab documented mercury biomagnification in the river itself and two floodplain locations on the South River watershed. Predictive models were built for mercury concentration in members of these food webs. These studies reached a preliminary conclusion that mercury biomagnification in …