Structural Consideration in Designing Organotin Polyethers to Arrest the Growth of Breast Cancer Cells In Vitro (open access)

Structural Consideration in Designing Organotin Polyethers to Arrest the Growth of Breast Cancer Cells In Vitro

The article looks at antitumor activity using a matched pair of cell lines MDA-MB-231 cells that are estrogen-independent, estrogen receptor negative and MCF-7 cells, a cell line that is estrogen receptor (ER) positive. Those polyethers that contained a O-phenyl unit were able to significantly inhibit the non-estrogen sensitive cell line but were much less effective against the estrogen sensitive cell line; that is, the human breast cancer cell line MDA-MB-231 showed better test results for polymers derived from diols containing the O-phenyl moiety than the breast cancer cell line MCF-7, a well-characterized estrogen receptor positive control cell line.
Date: April 15, 2011
Creator: Carraher, Charles E., Jr.; Roner, Michael R.; Shahi, Kimberly & Barot, Girish
System: The UNT Digital Library
Antiviral Activity of Metal-Containing Polymers—Organotin and Cisplatin-Like Polymers (open access)

Antiviral Activity of Metal-Containing Polymers—Organotin and Cisplatin-Like Polymers

This article examines the use of metal-containing polymers as a novel class of antivirals. Polymers containing platinum and to a lesser extent tin, have repeatedly demonstrated antitumor activity in vitro and in vivo against a variety of cell and tumor types. The mechanisms responsible for the antitumor activity include inducing a delay in cell proliferation and sister chromatid exchanges blocking tumor growth.
Date: May 27, 2011
Creator: Roner, Michael R.; Carraher, Charles E., Jr.; Shahi, Kimberly & Barot, Girish
System: The UNT Digital Library
On the exact solution of certain generic nonlinear polynomial systems with cyclic symmetry (open access)

On the exact solution of certain generic nonlinear polynomial systems with cyclic symmetry

This article examines how in view of the fundamental theorem of algebra and basic Galois theory solving nonlinear systems of polynomial equations exactly means in general reducing them to one single equation in one variable.
Date: 2011
Creator: Anghel, Nicolae
System: The UNT Digital Library
Optimization of nonlinear optical properties of ZnO micro and nanocrystals for biophotonics (open access)

Optimization of nonlinear optical properties of ZnO micro and nanocrystals for biophotonics

This article investigates the defects in ZnO created during its synthesis and its affect on the second and third-order nonlinear processes.
Date: July 21, 2011
Creator: Urban, Ben E.; Lin, Jie; Kumar, Os; Senthilkumar, Kasilingam; Fujita, Yasuhisa & Neogi, Arup
System: The UNT Digital Library
Identifying Native and Exotic Predators of Ground-Nesting Songbirds in Subantarctic Forests in Southern Chile (open access)

Identifying Native and Exotic Predators of Ground-Nesting Songbirds in Subantarctic Forests in Southern Chile

This article describes an artificial nest experiment to assess the impact of predators on daily survival rates of artificial bird nests in three different habitat types.
Date: April 28, 2011
Creator: Maley, Brett M.; Anderson, Christopher B.; Stodola, Kirk & Rosemond, Amy D.
System: The UNT Digital Library
Systematic Neighborhood Observations at High Spatial Resolution: Methodology and Assessment of Potential Benefits (open access)

Systematic Neighborhood Observations at High Spatial Resolution: Methodology and Assessment of Potential Benefits

This article describes a systematic neighborhood observation instrument for collecting data at very high spatial resolution to collect data in a low-income minority neighborhood in Dallas, TX.
Date: January 20, 2011
Creator: Leonard, Tammy; O'Brien Caughy, Margaret; Mays, Judith K. & Murdoch, James
System: The UNT Digital Library
Toward Accurate Theoretical Thermochemistry of First Row Transition Metal Complexes (open access)

Toward Accurate Theoretical Thermochemistry of First Row Transition Metal Complexes

This article uses the recently developed correlation consistent Composite Approach for transition metals to compute the thermochemical properties for a collection of 225 inorganic molecules containing first row (3d) transition metals.
Date: June 17, 2011
Creator: Jiang, Wanyi; DeYonker, Nathan J. & Wilson, Angela K.
System: The UNT Digital Library
Post-Fledging Habitat Selection by the Slender-Billed Parakeet (Enicognathus Leptorhynchus) in a Fragmented Agricultural Landscape of Southern Chile (open access)

Post-Fledging Habitat Selection by the Slender-Billed Parakeet (Enicognathus Leptorhynchus) in a Fragmented Agricultural Landscape of Southern Chile

This article contains an examination of habitat selection by radio-tracked juvenile Slender-billed Parakeets (Enicognathus leptorhynchus) at multiple spatial scales in a fragmented agricultural landscape of southern Chile.
Date: July 5, 2010
Creator: Carneiro, Ana Paula B.; Jiménez, Jaime E. & White, Thomas H., Jr.
System: The UNT Digital Library
Sustainable Science? Reducing the Carbon Impact of Scientific Mega-Meetings (open access)

Sustainable Science? Reducing the Carbon Impact of Scientific Mega-Meetings

This article uses 9 years of annual meeting attendance data from the Ecological Society of American and the Association of American Geographers to assess the efficacy of two additional solutions: 1) alternate large national meetings that require significant air travel with smaller regional meetings that do not; and 2) incorporate geography into the meeting location selection process.
Date: October 29, 2011
Creator: Ponette-González, Alexandra G. & Byrnes, Jarrett E.
System: The UNT Digital Library
Archaeological Protein Residues: New Data for Conservation Science (open access)

Archaeological Protein Residues: New Data for Conservation Science

This article identifies several cases where archaeological protein residues may be of benefit, justifies the use of protein residues in particular, and discusses areas for improvement.
Date: February 17, 2011
Creator: Barker, Andrew
System: The UNT Digital Library
Bioinformatics tools for cancer metabolomics (open access)

Bioinformatics tools for cancer metabolomics

This review focuses on the use of different bioinformatics tools in cancer metabolomics studies.
Date: January 12, 2011
Creator: Blekherman, Grigoriy; Laubenbacher, Reinhard; Cortes, Diego F.; Mendes, Pedro; Torti, Frank M.; Akman, Steven et al.
System: The UNT Digital Library
William James, Gustav Fechner, and Early Psychophysics (open access)

William James, Gustav Fechner, and Early Psychophysics

This article examines aspects of William James's thought such as his "transmission theory" of consciousness, his ideas on the "knowing of things together," and "the compounding of consciousness," which suggest his working toward a naturalistic understanding of consciousness.
Date: October 4, 2011
Creator: Hawkins, Stephanie
System: The UNT Digital Library
Egg Yolk Environment Differentially Influences Physiological and Morphological Development of Broiler and Layer Chicken Embryos (open access)

Egg Yolk Environment Differentially Influences Physiological and Morphological Development of Broiler and Layer Chicken Embryos

This article investigates the effect of breed-specific yolk composition on embryonic broiler and layer chicken phenotypes, using an ex ovo, xenobiotic technique that allows the transfer of broiler and layer chicken embryos from their natural yolks to novel yolk environments.
Date: January 26, 2011
Creator: Ho, Dao H.; Reed, Wendy L. & Burggren, Warren W.
System: The UNT Digital Library
1-Benzyl-3,5-bis(4-chlorobenzylidene)-piperidin-4-one (open access)

1-Benzyl-3,5-bis(4-chlorobenzylidene)-piperidin-4-one

The title compound, C₂₆H₂₁Cl₂NO, crystallizes with two symmetry-independent molecules in the asymmetric unit.
Date: May 16, 2011
Creator: Nesterov, Volodymyr V.; Sarkisov, Sergey S.; Shulaev, Vladimir & Nesterov, Vladimir N.
System: The UNT Digital Library
3,5-Bis(4-chlorobenzylidene)-1-methyl-piperidin-4-one (open access)

3,5-Bis(4-chlorobenzylidene)-1-methyl-piperidin-4-one

In the title molecule, C₂₀H₁₇Cl₂NO, the central heterocyclic ring adopts a flattened boat conformation.
Date: February 23, 2011
Creator: Nesterov, Volodymyr V.; Sarkisov, Sergey S.; Shulaev, Vladimir & Nesterov, Vladimir N.
System: The UNT Digital Library
Undistorted 3D microstructures in SU8 formed through two-photon polymerization (open access)

Undistorted 3D microstructures in SU8 formed through two-photon polymerization

This article presents the wavelength dependence of two-photon polymerization in SU-8 between 720-780 nm.
Date: September 21, 2011
Creator: Ohlinger, Kris; Lin, Yuankun; Poole, Zsolt & Chen, Kevin P.
System: The UNT Digital Library
Evaluation of the Biological Effects of Externally Tunable, Hydrogel Encapsulated Quantum Dot Nanospheres in Escherichia coli (open access)

Evaluation of the Biological Effects of Externally Tunable, Hydrogel Encapsulated Quantum Dot Nanospheres in Escherichia coli

This article presents the biological effects of a novel hydrogel based quantum dot nano-structure on E. coli bacteria.
Date: August 8, 2011
Creator: GhoshMitra, Somesree; Diercks, David; Hu, Zhibing; Roberts, James A.; Dahiya, Jai; Mills, Nathaniel et al.
System: The UNT Digital Library
A Population of X-Ray Weak Quasars: PHL 1811 Analogs at High Redshift (open access)

A Population of X-Ray Weak Quasars: PHL 1811 Analogs at High Redshift

This article reports the results from Chandra and XMM-Newton observations of a sample of 10 type 1 quasars selected to have unusual UV emission-line properties similar to those of PHL 1811.
Date: April 15, 2011
Creator: Wu, Jianfeng; Brandt, William Nielsen; Hall, Patrick B.; Gibson, Robert R.; Richards, Gordon T.; Schneider, Donald P. et al.
System: The UNT Digital Library
X-Ray Spectral Constraints for z ≈ 2 Massive Galaxies: The Identification of Reflection-Dominated Active Galactic Nuclei (open access)

X-Ray Spectral Constraints for z ≈ 2 Massive Galaxies: The Identification of Reflection-Dominated Active Galactic Nuclei

This article uses the 4 Ms Chandra Deep Field-South survey to place direct constraints on the ubiquity of z ≈ 2 heavily obscured active galactic nuclei.
Date: June 6, 2011
Creator: Alexander, David M.; Bauer, Franz E.; Brandt, William Nielsen; Daddi, Emanuele; Hickox, Ryan; Lehmer, Bret et al.
System: The UNT Digital Library
The X-Ray Properties of Typical High-Redshift Radio-Loud Quasars (open access)

The X-Ray Properties of Typical High-Redshift Radio-Loud Quasars

This article reports spectral, imaging, and variability results from four XMM-Newton observations and two Chandra observations of high-redshift radio-loud quasars.
Date: June 12, 2011
Creator: Saez, Christian; Brandt, William Nielsen; Shemmer, Ohad; Chomiuk, Laura; Lopez, Laura A.; Marshall, Herman L. et al.
System: The UNT Digital Library
The Lack of Torus Emission from BL Lacertae Objects: An Infrared View of Unification with WISE (open access)

The Lack of Torus Emission from BL Lacertae Objects: An Infrared View of Unification with WISE

This article uses data from the Wide-Field Infrared Survey Explorer to perform a statistical study on the mid-infrared properties of a large number of BL Lac objects.
Date: December 21, 2011
Creator: Plotkin, Richard M.; Anderson, Scott F.; Brandt, William Nielsen; Markoff, Sera; Shemmer, Ohad & Wu, Jianfeng
System: The UNT Digital Library
Observational Evidence of Quasar Feedback Quenching Star Formation at High Redshift (open access)

Observational Evidence of Quasar Feedback Quenching Star Formation at High Redshift

This Letter to the Editor discusses an observational proof of quasar feedback quenching the star formation at high redshift.
Date: December 20, 2011
Creator: Cano-Díaz, Mariana; Maiolino, Roberto; Marconi, Alessandro; Netzer, Hagai; Shemmer, Ohad & Cresci, Giovanni
System: The UNT Digital Library
The Chandra Deep Field-South Survey: 4 Ms Source Catalogs (open access)

The Chandra Deep Field-South Survey: 4 Ms Source Catalogs

This article presents source catalogs for the 4 Ms Chandra Deep Field-South.
Date: May 24, 2011
Creator: Xue, Yongquan; Luo, Bin; Brandt, William Nielsen; Bauer, Franz E.; Lehmer, Bret; Broos, Patrick et al.
System: The UNT Digital Library
The Ultraviolet-To-Mid-Infrared Spectral Energy Distribution of Weak Emission Line Quasars (open access)

The Ultraviolet-To-Mid-Infrared Spectral Energy Distribution of Weak Emission Line Quasars

This article presents Spitzer Space Telescope photometry of 18 Sloan Digital Sky Survey quasars which have weak or undetectable high-ionization emission lines in their rest-frame ultraviolet spectra.
Date: September 23, 2011
Creator: Lane, Ryan A.; Shemmer, Ohad; Diamond-Stanic, Aleksandar M.; Fan, Xiaohui; Anderson, Scott F.; Brandt, William Nielsen et al.
System: The UNT Digital Library