Index Catalog // ScholarsArchive@OSU

Spatiotemporal distribution of the anti-diabetic drug, metformin, in the lower Columbia River and its effect on phytoplankton growth

Creator:: Cummings, Brittany M.
Abstract:: Water quality impacts both human and ecosystem health. Many pharmaceuticals and personal care products are considered contaminants of emerging concern (CEC) due to their bioactive properties. Among these, metformin—the most commonly prescribed drug for treatment of type 2 diabetes—has been reported at high concentrations (μg L⁻¹) in stream, lake, and...
Resource Type:: Masters Thesis
Full Text:: , IN THE LOWER COLUMBIA RIVER AND ITS EFFECT ON PHYTOPLANKTON GROWTH By Brittany M. Cummings

Effect of metformin exposure on growth and photosynthetic performance in the unicellular freshwater chlorophyte, Chlorella vulgaris

Creator:: Cummings, Brittany M., Needoba, Joseph A., and Peterson, Tawyna D.
Abstract:: Many pharmaceuticals have negative effects on biota when released into the environment. For example, recent work has shown that the commonly prescribed antidiabetic drug, metformin (N,N-dimethylbiguanide), has endocrine disrupting effects on fish. However, effects of metformin on aquatic primary producers are poorly known. We exposed cultured isolates of a freshwater...
Resource Type:: Article
Full Text:: a1111111111 a1111111111 a1111111111 a1111111111 a1111111111 OPEN ACCESS Citation: Cummings BM, Needoba

Carbon Aerogel-Supported Nickel and Iron for Gasification Gas Cleaning. Part I: Ammonia Adsorption

Creator:: Gomez-Capiro, Oscar, Hinkle, Adrian, Delgado, Aaron M., Fernandez, Camila, Jimenez, Romel, and Arteaga-Perez, Luis E.
Abstract:: Biomass gasification is a promising way to obtain green energy, but the gas composition makes it unsuitable for use in traditional technologies (i.e., IC engine). Gas purification over nickel and/or iron catalysts is an attractive alternative. Cellulose-based carbon aerogels (CAGs) have shown suitable physical chemical properties for use as catalyst...
Resource Type:: Article
Full Text:: Iron for Gasification Gas Cleaning. Part I: Ammonia Adsorption Oscar Gómez-Cápiro 1,2,* ID , Adrian

Grazing Effects on Fuels and Plant Community Characteristics across Three Community Types in Wyoming Big Sagebrush Steppe

Creator:: Thomas, Tyler W.
Abstract:: Livestock grazing is the prominent land use in Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis [Beetle & A. Young] S.L. Welsh) steppe and has been present since the late 1800’s. There have been calls to remove livestock grazing from rangelands as historic grazing practices resulted in the degradation of some...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Tyler W. Thomas

Heavier rumen-reticulum organs in white-tailed deer (Odocoileus virginianus) is consistent with dietary bulk not quality

Creator:: Weckerly, F. W., Bhaskar, G., Duarte, A., Luna, R. S., and Starns, H. D.
Abstract:: The organs that make up the gastrointestinal tract have high energy demands. Therefore, when these organs vary in mass, they should impact metabolic requirements. Mass of the rumen-reticulum organs, the organs that comprise the largest part of the gastrointestinal tract of ruminants, might vary from bulk or nutrient availability of...
Resource Type:: Article
Full Text:: an . J . Z oo l. D ow nl oa de d fr om w w w .n rc re se ar ch pr es s. co m b y

Biodiversity and ecology of lichens of Katmai and Lake Clark National Parks and Preserves, Alaska

Creator:: McCune, B., Arup, U., Breuss, O., Di Meglio, E., Di Meglio, J., Esslinger, T. L., Magain, N., Miadlikowska, J., Miller, A. E., Muggia, L., Nelson, P. R., Rosentreter, R., Schultz, M., Sheard, J. W., Tonsberg, T., and Walton, J.
Abstract:: We inventoried lichens in Lake Clark (LACL) and Katmai (KATM) National Parks and Preserves. We assembled the known information on lichens in these parks by combining field, herbarium, and literature studies. Our results provide baseline data on lichen occurrence that may be used in resource condition assessments, vulnerability assessments, long-term...
Resource Type:: Article
Full Text:: , Box 90338, Durham, NC 27708 USA 6 National Park Service, 240 W 5th Ave., Anchorage, Alaska 99501

Uncovering the Hidden Excited State toward Fluorescence of an Intracellular pH Indicator

Creator:: Tang, Longteng, Zhu, Liangdong, Wang, Yanli, and Fang, Chong
Abstract:: Intracellular pH (pH(i)) imaging is of paramount importance for life sciences. In this work, we implement the ultrafast electronic and stimulated Raman spectroscopies to unravel the fluorescence mechanism of an excitation-ratiometric pH(i) indicator in basic aqueous solution. After photoexcitation of the pH(i) indicator HPTS, a hidden charge-transfer (CT) state following...
Resource Type:: Article
Full Text:: , 111, 230-237. (22) Liu, W.; Wang, Y.; Tang, L.; Oscar, B. G.; Zhu, L.; Fang, C. Panoramic Portrait

Watching an Engineered Calcium Biosensor Glow: Altered Reaction Pathways before Emission

Creator:: Tachibana, Sean R., Tang, Longteng, Zhu, Liangdong, Liu, Weimin, Wang, Yanli, and Fang, Chong
Abstract:: Biosensors have become an indispensable tool set in life sciences. Among them, fluorescent protein-based biosensors have great biocompatibility and tunable emission properties but their development is largely on trial and error. To facilitate a rational design, we implement tunable femtosecond stimulated Raman spectroscopy, aided by transient absorption and quantum calculations,...
Resource Type:: Article
Full Text:: , 333, 1888-1891. (17) Oscar, B. G.; Liu, W.; Zhao, Y.; Tang, L.; Wang, Y.; Campbell, R. E.; Fang, C

Femtosecond Stimulated Raman Line Shapes: Dependence on Resonance Conditions of Pump and Probe Pulses

Creator:: Chen, Cheng, Zhu, Liang-dong, and Fang, Chong
Abstract:: Resonance enhancement has been increasingly employed in the emergent femtosecond stimulated Raman spectroscopy (FSRS) to selectively monitor molecular structure and dynamics with improved spectral and temporal resolutions and signal-to-noise ratios. Such joint efforts by the technique- and application-oriented scientists and engineers have laid the foundation for exploiting the tunable FSRS...
Resource Type:: Article
Full Text:: 462, 200 (2009). [4] B. G. Oscar, W. Liu, Y. Zhao, L. Tang, Y. Wang, R. E. Campbell, and C. Fang

Designing redder and brighter fluorophores by synergistic tuning of ground and excited states

Creator:: Chen, Cheng, Baranov, Mikhail S., Zhu, Liangdong, Baleeva, Nadezhda S., Smirnov, Alexander Yu., Zaitseva, Snizhana O., Yampolsky, Ilia V., Solntsev, Kyril M., and Fang, Chong
Abstract:: We strategically modified the GFP core via chemical synthesis to make redder and brighter biomimetic fluorophores. Based on quantum calculations, solvatochromism analysis, and femtosecond Raman, we unveiled the additive effect of tuning the electronic ground and excited states, respectively, to achieve a dramatic emission redshift with a "double-donor-one-acceptor" structure.
Resource Type:: Article
Full Text:: . Soc., 2018, 140, 2046-2049. 16 W. Liu, Y. Wang, L. Tang, B. G. Oscar, L. Zhu and C. Fang, Chem. Sci

ScholarsArchive@OSU

Spatiotemporal distribution of the anti-diabetic drug, metformin, in the lower Columbia River and its effect on phytoplankton growth

Effect of metformin exposure on growth and photosynthetic performance in the unicellular freshwater chlorophyte, Chlorella vulgaris

Carbon Aerogel-Supported Nickel and Iron for Gasification Gas Cleaning. Part I: Ammonia Adsorption

Grazing Effects on Fuels and Plant Community Characteristics across Three Community Types in Wyoming Big Sagebrush Steppe

Heavier rumen-reticulum organs in white-tailed deer (Odocoileus virginianus) is consistent with dietary bulk not quality

Biodiversity and ecology of lichens of Katmai and Lake Clark National Parks and Preserves, Alaska

Uncovering the Hidden Excited State toward Fluorescence of an Intracellular pH Indicator

Watching an Engineered Calcium Biosensor Glow: Altered Reaction Pathways before Emission

Femtosecond Stimulated Raman Line Shapes: Dependence on Resonance Conditions of Pump and Probe Pulses

Designing redder and brighter fluorophores by synergistic tuning of ground and excited states

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search