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290 Matching Results
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Critical Developmental Windows for Morphology and Hematology Revealed by Intermittent and Continuous Hypoxic Incubation in Embryos of Quail (Coturnix Coturnix)
This article describes the exposure of quail embryos in the intact egg to hypoxia during "early" or "late" incubation for their entire 16-18 day incubation to determine critical windows for viability and growth.
Date:
November 14, 2016
Creator:
Burggren, Warren W. & Elmonoufy, Nourhan
System:
The UNT Digital Library
Lignin biosynthesis: old roads revisited and new roads explored
Article presents several hypothetical models to illustrate information about lignin and the lignification process in plants.
Date:
December 4, 2019
Creator:
Dixon, R. A. & Barros, Jaime
System:
The UNT Digital Library
A Combined Metabolomics and Fluxomics Analysis Identifies Steps Limiting Oil Synthesis in Maize Embryos
Article comparing the metabolism of embryos from two different maize lines, Alex and LH59, to test the hypothesis that directly changing their carbon metabolism may be the key to increasing oil content in maize kernels without affecting yield.
Date:
September 17, 2019
Creator:
Alonso, Ana Paula; Cocuron, Jean-Christophe; Koubaa, Mohamed; Kimmelfield, Rebecca & Ross, Zacchary
System:
The UNT Digital Library
Domestic Carnivore Interactions With Wildlife in the Cape Horn Biosphere Reserve, Chile: Husbandry and Perceptions of Impact From a Community Perspective
This article contains results of surveys to pet owners and non-owners living in the Cape Horn Biosphere Reserve in order to understand husbandry and perceptions of impacts by unconfined, domestic carnivores.
Date:
June 2, 2017
Creator:
Schüttler, Elke; Saavedra-Aracena, Lorena & Jiménez, Jaime E.
System:
The UNT Digital Library
Multimodal switching of a redox-active macrocycle
This article looks at molecules that can exist in multiple states with the possibility of toggling between those states based on different stimuli. They have potential for use in molecular switching or sensing applications. The coupling of two different oxidation states with two different charge-transfer states within one macrocyclic scaffold delivers up to five different optical outputs. This molecular switching manifold exploits intramolecular coupling of multiple redox active substituents within a single molecule.
Date:
March 1, 2019
Creator:
Payne, Daniel T.; Webre, W. A.; Matsushita, Yoshitaka; Zhu, Nianyong; Futera, Zdeněk; Labuta, J. et al.
System:
The UNT Digital Library
Electrostatic equilibria of non-neutral plasmas confined in a Penning trap with axially varying magnetic field
This article describes a procedure for computing the electrostatic equilibria of non-neutral plasmas in a Penning trap with a nonuniform magnetic field by solving Poisson's equation using an iterative method. Plasma equilibria in a model Penning trap with high and low field regions are computed. The plasma is assumed to follow the Boltzmann density distribution along magnetic field lines.
Date:
May 21, 2019
Creator:
Lane, Ryan A. & Ordonez, Carlos A.
System:
The UNT Digital Library
Artificially structured boundary plasma trap
This article presents a computer simulation of single-species non-neutral plasma confinement using an artificially structured boundary. The results support the prospect of developing plasma space-charge based confinement, with an unmagnetized plasma of one species of charged particles confined by an electric field produced by an edge-confined plasma of a second species of charged particles.
Date:
September 20, 2019
Creator:
Hedlof, R. M. & Ordonez, Carlos A.
System:
The UNT Digital Library
Altitudinal gradients in Magellanic sub-Antarctic lagoons: the effect of elevation on freshwater macroinvertebrate diversity and distribution
In this article, freshwater macroinvertebrate diversity associated with lakes and ponds along the altitudinal gradient of a Magellanic sub-Antarctic watershed are assessed. A monotonic decline in species richness was observed with increasing elevation, with simpler and more even community composition at higher altitude. This pattern differs from the mid-peak trend found in streams of the same watershed. Functional feeding group structure also diminished with increasing elevation.
Date:
July 29, 2019
Creator:
Rendoll Cárcamo, Javier; Contador, Tamara; Gañán, Melisa; Pérez Troncoso, Carolina; Maldonado Márquez, Alan; Convey, Peter et al.
System:
The UNT Digital Library
Noncatalytic chalcone isomerase-fold proteins in Humulus lupulus are auxiliary components in prenylated flavonoid biosynthesis
This article characterizes two noncatalytic chalcone isomerase (CHI)-like proteins using engineered yeast harboring all genes required for demethylxanthohumol (DMX) production.
Date:
February 6, 2018
Creator:
Ban, Zhaonan; Qin, Hao; Mitchell, Andrew J.; Liu, Baoxiu; Zhang, Fengxia; Weng, Jing-Ke et al.
System:
The UNT Digital Library
Gene regulatory networks for lignin biosynthesis in switchgrass (Panicum virgatum)
This article presents a combination of computational and experimental approaches to develop gene regulatory networks for lignin formation in switchgrass (Panicum virgatum), which has been selected as a biofuel crop in the United States.
Date:
May 11, 2018
Creator:
Rao, Xiaolan; Chen, Xin; Shen, Hui; Ma, Qin; Li, Guifen; Tang, Yuhong et al.
System:
The UNT Digital Library
Engineered nonlinear materials using gold nanoantenna array
This article describes the use of a gold nanoantenna array to enhance both the nonlinear refractive index and two-photon absorption (2PA) of the organic dye 4,4'-bis(diphenylamino)stilbene (BDPAS), which is known as a dye with relatively large 2PA.
Date:
August 21, 2017
Creator:
Drachev, Vladimir P.; Kildishev, Alexander V.; Borneman, Joshua D.; Chen, Kuo-Ping; Shalaev, Vladimir; Yamnitskiy, Konstantin et al.
System:
The UNT Digital Library
Retinal oxygen supply shaped the functional evolution of the vertebrate eye
Article explores the hypothesis that oxygen diffusion limited the evolution of retinal morphology by reconstructing the evolution of retinal thickness and the various mechanisms for retinal oxygen supply, including capillarization and acid-induced haemoglobin oxygen unloading.
Date:
December 10, 2019
Creator:
Damsgaard, Christian; Lauridsen, Henrik; Funder, Anette MD; Thomsen, Jesper S.; Desvignes, Thomas; Crossley, Dane A., II et al.
System:
The UNT Digital Library
Identification and characterization of a core set of ROS wave‐associated transcripts involved in the systemic acquired acclimation response of Arabidopsis to excess light
Article reveal that the systemic transcriptomic response of plants to excess light stress is extensive in the context of systemic acquired acclimation and involves an early (2 min) and transient stage of transcript expression that includes thousands of genes.
Date:
December 6, 2018
Creator:
Zandalinas, Sara I.; Sengupta, Soham; Burks, David; Azad, Rajeev K. & Mittler, Ron
System:
The UNT Digital Library
Simulation of an electrostatic quadrupole quadruplet focusing lens system for MeV multi-ion micro-beam
Article presents the simulations of an electrostatic quadrupole quadruplet (EQQ) lens system that will be used in a new sub-micron multi-ion beam for radiobiological studies.
Date:
October 2, 2019
Creator:
Glass, Gary A.; Chirayath, V. A.; Arya, H.; Jin, M.; Weiss, A. H. & Chi, Y.
System:
The UNT Digital Library
Artificially structured boundary for confinement of effectively unmagnetized cryogenic antimatter plasmas
The article is from conference proceedings that discuss an artificially structured boundary (ABS) considered to consist of a spatially periodic arrangement of electrostatically plugged magnetic cusps. As envisioned, a non-neutral positron plasma could be confined by an ASB along its edge, and the space charge of the positron plasma would serve to confine an antiproton plasma. If the conditions of the two-species plasma are suitable, production of antihydrogen via three-body recombination for antimatter gravity studies may be possible.
Date:
January 23, 2018
Creator:
Hedlof, R. M. & Ordonez, Carlos A.
System:
The UNT Digital Library
Giant spin Hall effect in two-dimensional monochalcogenides
This article, using calculations from first principles, reveals for the first time giant intrinsic spin Hall conductivities (SHC) in these materials. In particular, the article shows that the SHC resonances can be easily tuned by combination of strain and doping and, in some cases, strain can be used to induce semiconductor to metal transition that makes a giant spin Hall effect possible even in absence of doping.
Date:
October 30, 2018
Creator:
Sławińska, Jagoda; Cerasoli, Frank T.; Wang, Haihang; Postorino, Sara; Supka, Andrew; Curtarolo, Stefano et al.
System:
The UNT Digital Library
Polarization in electrostatics and circuits: Computing and visualizing surface charge distributions
Article describing an algorithm or computing the detailed surface charge distributions in equilibrium electrostatic situations and in steady-state DC circuits, and discuss the results of the computations of surface charge distributions for several systems.
Date:
December 14, 2018
Creator:
Chabay, Ruth & Sherwood, Bruce
System:
The UNT Digital Library
Application of Various Normalization Methods for Microscale Analysis of Tissues Using Direct Analyte Probed Nanoextraction
Article describes a study where various normalization techniques were investigated in order to improve the quantitative capabilities of direct analyte probed nanoextraction (DAPNe).
Date:
September 27, 2018
Creator:
de Jesus, Janella; Bunch, Josephine; Verbeck, Guido F.; Webb, Roger P.; Costa, Catia; Goodwin, Richard J. A. et al.
System:
The UNT Digital Library
Nanoextraction Coupled to Liquid Chromatography Mass Spectrometry Delivers Improved Spatially Resolved Analysis
Article describes a study which demonstrates that it is possible to significantly improve the repeatability of the direct analyte-probed nanoextraction (DAPNe) technique by incorporating a liquid chromatography separation step.
Date:
November 20, 2019
Creator:
Lewis, Holly-May; Webb, Roger P.; Verbeck, Guido F.; Bunch, Josephine; de Jesus, Janella; Costa, Catia et al.
System:
The UNT Digital Library
Uniformly de Bruijn Sequences and Symbolic Diophantine Approximation on Fractals
Article expanding the Intrinsic Diophantine approximation on fractals first proposed by K. Mahler (1984). This article describes and develops the theory of infinite de Bruijn sequences and answers questions related to Hausdorff dimension, Diophantine approximation, Dirichlet function, and height function.
Date:
April 27, 2018
Creator:
Fishman, Lior; Merrill, Keith & Simmons, David
System:
The UNT Digital Library
Foias Numbers
This article identifies the principal features in Foias’ original proof and streamlines them into a general result. The result gives further evidence to the observation that the connection between the sequence with initial seed the Foias constant and the Prime Number Theorem must be fortuitous.
Date:
December 30, 2018
Creator:
Anghel, Nicolae
System:
The UNT Digital Library
Square Roots of Real 3 x 3 Matrices vs. Quartic Polynomials with Real Zeros
Article on the analogy between the description of the real square roots of 3x3 matrices and the zeros of the (depressed) real quartic polynomial, using the Cayley-Hamilton theorem.
Date:
November 2017
Creator:
Anghel, Nicolae
System:
The UNT Digital Library
Coprologic survey of endoparasites from Darwin’s fox (Pseudalopex fulvipes) in Chiloé, Chile
Article on parasite presence in the critically endangered Darwin's fox (Pseudalopex fulvipes) in Chile. Parasites found include species and genera reported for the first time in Darwin's fox.
Date:
January 1, 2012
Creator:
Jiménez, Jaime E.; Briceño, C.; Alcaíno, H.; Vásquez, P.; Funk, S. & González-Acuña, D.
System:
The UNT Digital Library
Team Resilience in Complex and Turbulent Environments: The Effect of Size and Density of Social Interactions
This article addresses the question of how teams cope with environmental threats by investigating two drivers of team resilience: the team size and the density of social interactions among team members.
Date:
July 24, 2018
Creator:
Giannoccaro, Ilaria; Massari, Giovanni F. & Carbone, Giuseppe
System:
The UNT Digital Library