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open access

Spectroscopic Investigation of Fluorescence Quenching Agents: Effect of Nitromethane on the Fluorescence Emission Behavior of Select Cyclopenta-PAH, Aceanthrylene, and Fluorene Derivatives

Description: Article on a spectroscopic investigation of fluorescence quenching agents and the effect of nitromethane on the fluorescence emission behavior of select cyclopenta-PAH, aceanthrylene, and fluorene derivatives.
Date: July 1, 1992
Creator: Amszi, Vicki L.; Cordero, Yvonne; Smith, Bradley; Tucker, Sheryl A. (Sheryl Ann); Acree, William E. (William Eugene); Yang, Chengxi et al.
Item Type: Refine your search to only Article
open access

Spectroscopic Investigation of Fluorescence Quenching Agents. Part 4: Selectivity of Nitromethane for Discriminating Between Alternant Versus Nonalternant Polycyclic Aromatic Hydrocarbons in Solvents of Differing Polarities

Description: Article on spectroscopic investigation of fluorescence quenching agents and selectivity of nitromethane for discriminating between alternant versus nonalternant polycyclic aromatic hydrocarbons in solvents of differing polarities.
Date: November 1, 1993
Creator: Tucker, Sheryl A. (Sheryl Ann); Bates, Heather C.; Acree, William E. (William Eugene) & Fetzer, John Charles, 1953-
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open access

Spectroscopic Investigation of Fluorescence Quenching Agents. Part II: Effect of Nitromethane on the Fluorescence Emission Behavior of Thirty-Six Alternant Benzenoid Polycyclic Aromatic Hydrocarbons

Description: Article on a spectroscopic investigation of fluorescence quenching agents and the effect of nitromethane on the fluorescence emission behavior of thirty-six alternant benzenoid polycyclic aromatic hydrocarbons.
Date: August 1, 1992
Creator: Tucker, Sheryl A. (Sheryl Ann); Darmodjo, Hardjanti; Acree, William E. (William Eugene); Fetzer, John Charles, 1953- & Zander, Maximilian
Item Type: Refine your search to only Article
open access

Spectroscopic Investigation of Fluorescence Quenching Agents. Part III: Effect of Solvent Polarity on the Selectivity of Nitromethane for Discriminating Between Alternant Versus Nonalternant Polycyclic Aromatic Hydrocarbons

Description: Article on a spectroscopic investigation of fluorescence quenching agents and the effect of solvent polarity on the selectivity of nitromethane for discriminating between alternant versus nonalternant polycyclic aromatic hydrocarbons.
Date: June 1, 1993
Creator: Tucker, Sheryl A. (Sheryl Ann); Acree, William E. (William Eugene); Fetzer, John Charles, 1953-; Harvey, Ronald G.; Tanga, Mary J. & Cheng, Pei-Chao
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open access

Spectroscopic Properties of Polycyclic Aromatic Compounds: Examination of Nitromethane as a Selective Fluorescence Quenching Agent for Alternant Polycyclic Aromatic Nitrogen Hetero-Atom Derivatives

Description: Article on the spectroscopic properties of polycyclic aromatic compounds and an examination of nitromethane as a selective fluorescence quenching agent for alternant polycyclic aromatic nitrogen hetero-atom derivatives.
Date: February 1, 1992
Creator: Tucker, Sheryl A. (Sheryl Ann); Acree, William E. (William Eugene); Tanga, Mary J.; Tokita, Sumio; Hiruta, Kimihiro & Langhals, Heinz
Item Type: Refine your search to only Article
open access

Spectroscopic Properties of Polycyclic Aromatic Compounds. Part 4: Effect of Solvent Polarity and Nitromethane on the Fluorescence Emission Behavior of Select Bipolycyclic Aromatic Hydrocarbons

Description: Article on spectroscopic properties of polycyclic aromatic compounds and the effect of solvent polarity and nitromethane on the fluorescence emission behavior of select bipolycyclic aromatic hydrocarbons.
Date: April 1, 1994
Creator: Tucker, Sheryl A. (Sheryl Ann); Griffin, Jason M.; Acree, William E. (William Eugene); Zander, Maximilian & Mitchell, Reginald H.
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open access

Spectroscopic Properties of Polycyclic Aromatic Compounds. Part III: Fluorescence Emission and Quenching Behavior of Periodic Table Group 16 Hetero-Atom Derivatives

Description: Article on the spectroscopic properties of polycyclic aromatic compounds and the fluorescence emission and quenching behavior of periodic table group 16 hetero-atom derivatives.
Date: March 1, 1993
Creator: Tucker, Sheryl A. (Sheryl Ann); Acree, William E. (William Eugene); Zander, Maximilian; Demerseman, Pierre & Buisson, Jean-Pierre
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open access

Spectroscopic Properties of Polycyclic Aromatic Hydrocarbons: Effect of Solvent Polarity on the Fluorescence Emission Behavior of Select Fluoranthene, Fluorenochrysene, Indenochrysene, and Indenopyrene Derivatives

Description: Article on the spectroscopic properties of polycyclic aromatic hydrocarbons and the effect of solvent polarity on the fluorescence emission behavior of select fluoranthene, fluorenochrysene, indenochrysene, and indenopyrene derivatives.
Date: December 1, 1991
Creator: Tucker, Sheryl A. (Sheryl Ann); Acree, William E. (William Eugene); Cho, Bongsup P.; Harvey, Ronald G. & Fetzer, John Charles, 1953-
Item Type: Refine your search to only Article
captions transcript

Speech about user-centered design for language archives

Description: Video recording of a presentation discussing user-centered design for language archives. This was presented during the afternoon session on "Archive and database usability" at the 2017 Symposium on Developing Infrastructure for Computational Resources on South Asian Languages.
Date: November 17, 2017
Duration: 5 minutes 08 seconds
Creator: Willis Oko, Christina
Item Type: Refine your search to only Video
Location: 33.210068 -97.148954
open access

SPHK1 regulates proliferation and survival responses in triple-negative breast cancer

Description: Article describes study suggesting that the inhibation of sphingosine kinase 1 (SPHK1) can attenuate ERK1/2 and AKT signaling and reduce growth of triple-negative breast cancer (TNBC) cells in vitro and in a xenograft SCID mouse model.
Date: March 27, 2014
Creator: Datta, Arpita; Loo, Ser Yue; Huang, Baohua; Wong, Lingkai; Tan, Sheryl S.L.; Tan, Tuan Zea et al.
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open access

Spontaneous Brain Activity as a Source of Ideal 1/f Noise

Description: In this article, the authors study the electroencephalogram (EEG) of 30 closed-eye subjects with a technique of analysis recently proposed to detect punctual events signaling rapid transitions between different metastable states.
Date: December 18, 2009
Creator: Allegrini, Paolo; Menicucci, Danilo; Bedini, Remo; Fronzoni, Leone; Gemignani, Angelo; Grigolini, Paolo et al.
Item Type: Refine your search to only Article
open access

St. Anne's Church in Vilnius, Lithuania

Description: Front cover of the 2011 issue of The Hexagon, featuring St. Anne's church in Vilnius, Lithuania. The Gothic red brick building looms above a street bustling with activity. The inside cover contains a table of contents, staff credits, an editorial, and a description of the front cover.
Date: Summer 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
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open access

ST JOHN'S Cemetery: A report detailing how Denton County Commissioner Hub Clark stole a cemetery from a Pilot Point freedpersons community in 1938.

Description: This report was submitted to the Denton County Commissioner’s Court on December 12, 2023. The independent research contained herein was inspired by a collaborative community effort to highlight the emerging historical narrative of the St. John's freed-persons community of Pilot Point, its unexplained disappearance in the 1930s, and the events that led to the community's cemetery becoming landlocked and inaccessible to the public for more than eighty years.
Date: December 12, 2023
Creator: Luther Rummel, Jessica
Item Type: Refine your search to only Report
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