2,275 Matching Results

Results open in a new window/tab.

Cotton CENTRORADIALIS/TERMINAL FLOWER 1/SELF-PRUNING genes functionally diverged to differentially impact plant architecture (open access)

Cotton CENTRORADIALIS/TERMINAL FLOWER 1/SELF-PRUNING genes functionally diverged to differentially impact plant architecture

This article characterizes the CETS gene family from tetraploid cotton in order to understand the regulation of cotton architecture and exploit these principles to enhance crop productivity.
Date: September 10, 2018
Creator: Prewitt, Sarah F.; Ayre, Brian G. & McGarry, Roisin C.
Object Type: Article
System: The UNT Digital Library
Some numerical analyses on the solubility of vanillin in Carbitol® + water solvent mixtures (open access)

Some numerical analyses on the solubility of vanillin in Carbitol® + water solvent mixtures

This article reports solubility values of vanillin (component 3) in 2-(2-ethoxyethoxy)ethanol (Carbitol®, component 1) + water (component 2) mixtures at five temperatures from 298.15 to 318.15 K correlated with the Jouyban-Acree model combined with van't Hoff or Apelblat equations, and obtains models in second degree regarding the mixtures compositions.
Date: May 25, 2015
Creator: Martínez, Fleming; Jouyban, Abolghasem & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
The First Stalin Mass Operation (1927) (open access)

The First Stalin Mass Operation (1927)

This article based on new archival documents introduces a new episode of mass operations, which took place in June and July of 1927 and was directed against the broad group of “anti-Soviet” forces. It preceded many practices of mass terror of the 1930s with judicial and extra-legal mechanisms. The goal of this article is to explain motivations, justifications, and mechanisms of this repressive campaign and to put this episode in the wider context of Soviet terror. Facing the combination of a perceived danger of war and real internal social hostility expressed in broad defeatism, both threatening the perpetuation of their governmental powers, authorities resorted to repressions. The 1927 episode highlights the factor of a perceived threat of war as a crucial motivating element in Soviet repressive tactics.
Date: January 2013
Creator: Velikanova, Olga V.
Object Type: Article
System: The UNT Digital Library
Technical Memorandum: Lewisville Lake Watershed Protection and Management Strategies (open access)

Technical Memorandum: Lewisville Lake Watershed Protection and Management Strategies

With a current population of just over half a million and a 2030 projected population of approximately one million, expansion throughout Denton County shows no sign of slowing down (NCTCOG). Increasingly, freshwater resources are also facing increased pressure from this urban expansion. Effective assessment and management techniques are necessary to protect the diversity of ecosystem services found within fluvial ecosystems and to mitigate current and future conditions of environmental stressor amplified by urban development. The use of various spatial analysis techniques in environmental assessment present more expedient, cost effective, and broader ranging methods of evaluation than traditional field techniques. One such novel evaluation technique is the Water Quality Corridor Management (WQCM) model, developed by the University of North Texas in cooperation with the Upper Trinity Regional Water District (UTRWD). The WQCM model is a geospatial database that utilizes GIS and remote sensing techniques to assess and prioritize stream reaches according to their overall health and sustainability. This project assessed the viability of the WQCM model in reviewing the status of stream systems, and ultimately, established an accurate mechanism for evaluating the stream corridor and surface water quality draining into Lewisville Lake, a popular recreation site and drinking water source for …
Date: September 2007
Creator: Atkinson, Samuel F.; Hunter, Bruce Allan; English, April; Boe, Brian & Dameron, Matt
Object Type: Text
System: The UNT Digital Library
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
Object Type: Article
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
Object Type: Article
System: The UNT Digital Library
An Updating System for the Gridded Population Database of China Based on Remote Sensing, GIS and Spatial Database Technologies (open access)

An Updating System for the Gridded Population Database of China Based on Remote Sensing, GIS and Spatial Database Technologies

Describes the development of a Spatial Population Updating System (SPUS) for updating the gridded population database of China based on remote sensing, GIS and spatial database technologies, with a spatial resolution of 1 km by 1 km.
Date: February 20, 2009
Creator: Yang, Xiaohuan; Huang, Yaohuan; Dong, Pinliang; Jiang, Dong & Liu, Honghui
Object Type: Article
System: The UNT Digital Library
Explicitly teaching five technical genres to English first-language adults in a multi-major technical writing course (open access)

Explicitly teaching five technical genres to English first-language adults in a multi-major technical writing course

In this article, the author reports the effects of explicitly teaching five technical genres to English first-language students enrolled in a multi-major technical writing course. Previous experimental research has demonstrated the efficacy of explicitly teaching academic writing to English first-language adults, but no comparable study on technical writing exists.
Date: 2014
Creator: Boettger, Ryan K.
Object Type: Article
System: The UNT Digital Library
Measurements and Theoretical Predictions of Charge Exchange Cross Sections and Emission Spectra for O6+ with H2O, CO, CO2, CH4, N2, NO, N2O and Ar (open access)

Measurements and Theoretical Predictions of Charge Exchange Cross Sections and Emission Spectra for O6+ with H2O, CO, CO2, CH4, N2, NO, N2O and Ar

Article reports absolute CE cross sections for up to three exchanges of the O6+ ion with electrons from the comet/planetary gases H2O, CO, CO2, CH4, N2, NO, N2O and Ar.
Date: 2015
Creator: Machacek, J. R.; Mahapatra, Durga P.; Schultz, David R.; Ralchenko, Yu; Moradmand, A.; El Ghazaly, M. O. A. et al.
Object Type: Article
System: The UNT Digital Library
Cabo de hornos: Un crisol biogeográfico en la cumbre austral de américa (open access)

Cabo de hornos: Un crisol biogeográfico en la cumbre austral de américa

Article discusses the history and the biodiversity of Cape Horn.
Date: June 2, 2018
Creator: Rozzi, Ricardo, 1960-
Object Type: Article
System: The UNT Digital Library
A New Way to Understand and Address Women’s Health in the Context of Complex Systems: Self-organizing Criticality (open access)

A New Way to Understand and Address Women’s Health in the Context of Complex Systems: Self-organizing Criticality

Article proposes applying concepts from nonlinear science developed and employed by physicists, economists, and meteorologists to women's health issues.
Date: January 1, 2016
Creator: Mancuso, Peggy; Liu, Fuqin; Restrepo, Elizabeth; Hamilton, Patricia; Grigolini, Paolo & Zou, Lin
Object Type: Article
System: The UNT Digital Library
What Can We Learn about Dispersion from the Conformer Surface of n-Pentane? (open access)

What Can We Learn about Dispersion from the Conformer Surface of n-Pentane?

Article describes study in which researchers mapped the torsional surface of n-pentane to 10-degree resolution at the CCSD(T)-F12 level near the basis set limit.
Date: March 28, 2013
Creator: Martin, Jan M. L.
Object Type: Article
System: The UNT Digital Library
Evidence for the Involvement of Electrical, Calcium and ROS Signaling in the Systemic Regulation of Non-Photochemical Quenching and Photosynthesis (open access)

Evidence for the Involvement of Electrical, Calcium and ROS Signaling in the Systemic Regulation of Non-Photochemical Quenching and Photosynthesis

Article presents study in which pulse amplitude-modulated Chl fluorescence imaging and surface electrical potential measurements accompanied by pharmacological treatments were employed to study stimuli-induced electrical signals in leaves from a broad range of plant species and in Arabidopsis thaliana mutants.
Date: February 10, 2017
Creator: Białasek, Maciej; Górecka, Magdalena; Mittler, Ron & Karpiński, Stanisław
Object Type: Article
System: The UNT Digital Library
EMOTION-III Model: A Theoretical Framework for Social Empathic Emotions in Autonomous Control Systems (open access)

EMOTION-III Model: A Theoretical Framework for Social Empathic Emotions in Autonomous Control Systems

In this article, a theoretical model of social empathic emotion is derived based on the principles of survival by extending the maximization of self-gains to include others as an extended-self. This extended-self model of optimization for survival provides the computational mechanisms in the optimization process to maximize self-gains without minimizing the gains (or maximizing losses) for the other individuals. Thus, it can resolve conflicts in a competitive environment, and change the social dynamics into a cooperative interaction instead.
Date: July 29, 2016
Creator: Tam, Nicoladie D.
Object Type: Article
System: The UNT Digital Library
Space-charge-based electrostatic plasma confinement involving relaxed plasma species (open access)

Space-charge-based electrostatic plasma confinement involving relaxed plasma species

In this article, a numerical study is reported on the equilibrium properties of a surface-emitted or edge-confined non-drifting plasma. A self-consistent finite-differences evaluation of the electrostatic potential is carried out for a non-neutral plasma that follows a Boltzmann density distribution.
Date: October 23, 2012
Creator: Pacheco, J. L.; Ordonez, Carlos A. & Weathers, Duncan L.
Object Type: Article
System: The UNT Digital Library
Targeting the PI3K/Akt signaling pathway in gastric carcinoma: A reality for personalized medicine? (open access)

Targeting the PI3K/Akt signaling pathway in gastric carcinoma: A reality for personalized medicine?

Article reviews the common dysregulation of phosphatidylinositol-3 kinases (PI3K)/Akt/mTOR pathway in gastric cancer (GC) and the various types of single or dual pathway inhibitors under development that might have a superior role in GC treatment.
Date: October 26, 2015
Creator: Singh, Shikha Satendra; Yap, Wei Ney; Arfuso, Frank; Kar, Shreya; Wang, Chao; Cai, Wanpei et al.
Object Type: Article
System: The UNT Digital Library
Electrical Properties of Tin Selenide Under High-Pressure (open access)

Electrical Properties of Tin Selenide Under High-Pressure

The article investigates the pressure-induced phase transitions in tin selenide (SnSe). using the first-principles density functional calculations. The experimental results in the nanostructured SnSe revealed a phase transition at 4 GPa whereas that in the well-crystallized samples showed at 10 GPa.
Date: November 3, 2016
Creator: Ghosh, Angsula; Gusmão, M. S.; Chaudhuri, Puspitapallab; de Souza, S. Michielon; Mota, Cicero; Trichês, D. M. et al.
Object Type: Article
System: The UNT Digital Library
A blood screening test for Alzheimer's disease (open access)

A blood screening test for Alzheimer's disease

Article describes study examining the positive and negative predictive values of an Alzheimer's disease (AD) blood test if implemented in primary care.
Date: June 25, 2016
Creator: O'Bryant, Sid E.; Edwards, Melissa; Johnson, Leigh A.; Hall, James R.; Villarreal, Alcibiades E.; Britton, Gabrielle B. et al.
Object Type: Article
System: The UNT Digital Library
Crystal structure of (3E,5E)-3,5-bis­[4-(di­ethyl­aza­nium­yl)benzyl­idene]-1-methyl-4-oxopiperidin-1-ium trichloride dihydrate: a potential biophotonic material (open access)

Crystal structure of (3E,5E)-3,5-bis­[4-(di­ethyl­aza­nium­yl)benzyl­idene]-1-methyl-4-oxopiperidin-1-ium trichloride dihydrate: a potential biophotonic material

Article provides a detailed description of the crystal structure of (3E,5E)-3,5-bis­­[4-(di­ethyl­aza­nium­yl)benzyl­­idene]-1-methyl-4-oxopiperidin-1-ium trichloride dihydrate
Date: November 21, 2015
Creator: Nesterov, Volodymyr V.; Zakharov, Lev N.; Nesterov, Vladimir N. & Shulaev, Vladimir
Object Type: Article
System: The UNT Digital Library
Crystal structure of bis­(aceto­nitrile-κN)(4,4′-di-tert-butyl-2,2′-bi­pyridine-κ2N,N′)platinum(II) bis­(tetra­fluorido­borate) packing as head-to-head dimers (open access)

Crystal structure of bis­(aceto­nitrile-κN)(4,4′-di-tert-butyl-2,2′-bi­pyridine-κ2N,N′)platinum(II) bis­(tetra­fluorido­borate) packing as head-to-head dimers

Article discusses the crystal structure of a platinum(II) supra­molecular building block, [Pt(dbbpy)(NCCH3)2](BF4)2 (dbbpy = 4,4′-di-tert-butyl-2,2′-bi­pyridine, C18H24N2).
Date: April 24, 2018
Creator: Joseph, Chris; Nesterov, Vladimir N. & Smucker, Bradley W.
Object Type: Article
System: The UNT Digital Library
Molecular Markers of Neuropsychological Functioning and Alzheimer's Disease (open access)

Molecular Markers of Neuropsychological Functioning and Alzheimer's Disease

Article examines molecular markers of neuropsychological functioning among elders with and without Alzheimer's disease (AD) and determine the predictive ability of combined molecular markers and select neuropsychological tests in detecting disease presence. This work provides the foundation for the generation of a point‐of‐care device that can be used to screen for AD.
Date: March 1, 2015
Creator: Edwards, Melissa; Balldin, Valerie Hobson; Hall, James R. & O'Bryant, Sid E.
Object Type: Article
System: The UNT Digital Library
Guidelines for the standardization of preanalytic variables for blood‐based biomarker studies in Alzheimer's disease research (open access)

Guidelines for the standardization of preanalytic variables for blood‐based biomarker studies in Alzheimer's disease research

Review article which provides (1) a synopsis of selected preanalytical methods utilized in many international AD cohort studies, (2) initial draft guidelines/SOPs for preanalytical methods, and (3) a list of required methodological information and protocols to be made available for publications in the field to foster cross‐validation across cohorts and laboratories.
Date: September 30, 2014
Creator: O'Bryant, Sid E.; Gupta, Veer; Henriksen, Kim; Edwards, Melissa; Jeromin, Andreas; Lista, Simone et al.
Object Type: Article
System: The UNT Digital Library
Loitering at the hilltop on exterior domains (open access)

Loitering at the hilltop on exterior domains

In this article, the author proves the existence of an infinite number of radial solutions of Δu+f(u)=0 on the exterior of the ball of radius R>0 centered at the origin and f is odd with f<0 on (0,β), f>0 on (β,δ), and f≡0 for u>δ. The primitive F(u)=∫u0f(t)dt has a "hilltop" at u=δ which allows one to use the shooting method and ODE techniques to prove the existence of solutions.
Date: November 23, 2015
Creator: Iaia, Joseph A.
Object Type: Article
System: The UNT Digital Library
Overexpression of fatty acid amide hydrolase induces early flowering in Arabidopsis thaliana (open access)

Overexpression of fatty acid amide hydrolase induces early flowering in Arabidopsis thaliana

Article investigates the nature of the early flowering phenotype of AtFAAH overexpression.
Date: February 20, 2012
Creator: Teaster, Neal D.; Keereetaweep, Jantana; Kilaru, Aruna; Wang, Yuh-Shuh; Tang, Yuhong; Tran, Christopher N.-Q. et al.
Object Type: Article
System: The UNT Digital Library