10 Matching Results

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Regulation of blood flow in the pulmonary and systemic circuits during submerged swimming in common snapping turtle (Chelydra serpentina) (open access)

Regulation of blood flow in the pulmonary and systemic circuits during submerged swimming in common snapping turtle (Chelydra serpentina)

This article is a study investigating the blood flow patterns and heart rate in surfacing and during graded, submerged swimming activity in common snapping turtles. The effects of beta-adrenergic and cholinergic receptor blockade on blood flow and heart rate during these activities are also studied.
Date: August 16, 2019
Creator: Reynolds Kirby, Amanda; Smith, Brandt R. & Crossley, Dane A., II
System: The UNT Digital Library
Occurrence of excited state charge separation in a N-doped graphene–perylenediimide hybrid formed via ‘click’ chemistry (open access)

Occurrence of excited state charge separation in a N-doped graphene–perylenediimide hybrid formed via ‘click’ chemistry

Article describes study in which researchers, using click chemistry, synthesized a donor–acceptor hybrid comprised of N-doped graphene and perylenediimide (PDI), a well-known electron-accepting photosensitizer.
Date: August 30, 2019
Creator: Gobeze, Habtom B.; Arellano, Luis M.; Gutiérrez-Vílchez, Ana María; Gómez-Escalonilla, María J.; Sastre-Santos, Ángela; Fernández-Lázaro, Fernando et al.
System: The UNT Digital Library
Systematic Comparison of Power Corridor Classification Methods from ALS Point Clouds (open access)

Systematic Comparison of Power Corridor Classification Methods from ALS Point Clouds

Study examines factors that affect power corridor classification using LiDAR (light detection and ranging) point clouds, including the class distribution, feature selection, classifier type and neighborhood radius for classification feature extraction.
Date: August 21, 2019
Creator: Peng, Shuwen; Xi, Xiaohuan; Wang, Cheng; Dong, Pinliang; Wang, Pu & Nie, Sheng
System: The UNT Digital Library
Amplification of photoacoustic effect in bimodal polymer particles by self-quenching of indocyanine green (open access)

Amplification of photoacoustic effect in bimodal polymer particles by self-quenching of indocyanine green

This article presents a new type of bimodal contrast agent that is based on the self-quenching of indocyanine green (ICG) encapsulated in a biocompatible and biodegradable polymer shell.
Date: August 23, 2019
Creator: Mokrousov, Maksim D.; Novoselova, Marina V.; Nolan, Jackie; Harrington, Walter; Rudakovskaya, Polina; Bratashov, Daniil N. et al.
System: The UNT Digital Library
p63 and SOX2 Dictate Glucose Reliance and Metabolic Vulnerabilities in Squamous Cell Carcinomas (open access)

p63 and SOX2 Dictate Glucose Reliance and Metabolic Vulnerabilities in Squamous Cell Carcinomas

Article identifies exceptional glucose reliance among squamous cell carcinomas (SCC)s dictated by hyperactive GLUT1-mediated glucose influx.
Date: August 13, 2019
Creator: Hsieh, Meng-Hsiung; Choe, Joshua H.; Gadhvi, Jashkaran; Kim, Yoon Jung; Arguez, Marcus A.; Palmer, Madison et al.
System: The UNT Digital Library
A gene based approach to test genetic association based on an optimally weighted combination of multiple traits (open access)

A gene based approach to test genetic association based on an optimally weighted combination of multiple traits

In this article, the authors propose a statistical method by Testing an Optimally Weighted Combination of Multiple traits (TOW-CM) to test the association between multiple traits and multiple variants in a genomic region (a gene or pathway). They investigate the performance of the proposed method through extensive simulation studies. Their simulation studies show that the proposed method has correct type I error rates and is either the most powerful test or comparable with the most powerful tests. Additionally, they illustrate the usefulness of TOW-CM based on a COPDGene study.
Date: August 9, 2019
Creator: Zhang, Jianjun; Sha, Qiuying; Liu, Guanfu & Wang, Xuexia
System: The UNT Digital Library
Correlation consistent basis sets designed for density functional theory: Second-row (Al-Ar) (open access)

Correlation consistent basis sets designed for density functional theory: Second-row (Al-Ar)

Article presenting cc-pV(n+d)Z correlation consistent basis sets of double- through quintuple-ζ quality for the atoms Al-Ar that have been modified for use with density functional theory (DFT). These basis set modifications include truncation of high-angular momentum basis functions, recontraction of the s- and p-functions, and reoptimization of basis function exponents with generalized gradient approximation and hybrid-DFT functionals. The effects of basis set truncation, recontraction, and reoptimization are shown to improve convergence behavior in atomic energies as well as dissociation energies and enthalpies of formation.
Date: June 8, 2019
Creator: Mahler, Andrew; Determan, John J. & Wilson, Angela K.
System: The UNT Digital Library
Influence of coherent population trapping on Raman scattering (open access)

Influence of coherent population trapping on Raman scattering

Article considering the Raman scattering in molecular media. Applying two laser fields in a two-photon resonance with vibrational transition, the authors study the role of rotational levels for excitation of vibrational coherence. It is shown that the molecular vibrational coherence strongly depends on the effect of coherent population trapping for rotational levels. The obtained results are important for applications of Raman spectroscopy to molecular detection in engineering, chemical, and biological applications.
Date: August 8, 2019
Creator: Singh, Pooja; Rostovtsev, Yuri V.; Patnaik, Anil K.; Roy, Sukesh & Gord, James R.
System: The UNT Digital Library
Persistent spin helix in Rashba-Dresselhaus ferroelectric CsBiNb2O7 (open access)

Persistent spin helix in Rashba-Dresselhaus ferroelectric CsBiNb2O7

Article reporting that CsBiNb₂O₇, a layered perovskite of Dion-Jacobson type, is a robust ferroelectric with sufficiently strong spin-orbit coupling and spin texture reversible by electric field. The study reveals that its topmost valence band's spin texture is quasi-independent from the momentum, as a result of the low symmetry of its ferroelectric phase. The peculiar spin-polarization pattern in the momentum space may yield the so-called “persistent spin helix,” a specific spin-wave mode which protects the spin from decoherence in the diffusive transport regime, potentially ensuring a very long spin lifetime in this material.
Date: August 19, 2019
Creator: Sławińska, Jagoda; Autieri, Carmine; Barone, Paolo & Picozzi, Silvia
System: The UNT Digital Library
LBD29-Involved Auxin Signaling Represses NAC Master Regulators and Fiber Wall Biosynthesis (open access)

LBD29-Involved Auxin Signaling Represses NAC Master Regulators and Fiber Wall Biosynthesis

This article uses a large-scale mutant screening to identify a dominant activation-tagging mutant, fiberless-d (fls-d), showing defective SCW development in stem fibers, similar to that of the nac secondary wall thickening promoting factor1-1 (nst1-1)nst3-3 double mutant. The results demonstrate auxin is upstream of LBD29 in repressing NAC master regulators, and therefore sheds new light on the regulation of SCW biosynthesis in Arabidopsis.
Date: August 3, 2019
Creator: Lee, Kwang-Hee; Du, Qian; Zhuo, Chunliu; Qi, Liying & Wang, Huanzhong
System: The UNT Digital Library