Speed of Sound in Periodic Elastic Composites (open access)

Speed of Sound in Periodic Elastic Composites

In this article, the authors consider the low-frequency limit (homogenization) for propagation of sound waves in periodic elastic medium (phononic crystals).
Date: December 29, 2003
Creator: Krokhin, Arkadii A.; Arriaga, J. & Gumen, L.
Object Type: Article
System: The UNT Digital Library
Low-frequency index of refraction for a two-dimensional metallodielectric photonic crystal (open access)

Low-frequency index of refraction for a two-dimensional metallodielectric photonic crystal

This article discusses the low-frequency index of refraction for a two-dimensional metallodialectric photonic crystal.
Date: January 29, 2007
Creator: Krokhin, Arkadii A.; Reyes, E. & Gumen, L.
Object Type: Article
System: The UNT Digital Library
Tuning the decay of sound in a viscous metamaterial (open access)

Tuning the decay of sound in a viscous metamaterial

Authors of the article use analytical results for viscous dissipation in phononic crystals to calculate the decay coefficient of a sound wave propagating at low frequencies through a two-dimensional phononic crystal with a viscous fluid background. They claim that the decay coefficient exhibits dependence on the direction of propagation; that is, a homogenized phononic crystal behaves like an anisotropic viscous fluid.
Date: October 10, 2022
Creator: Ibarias, M.; Doporto, J.; Krokhin, Arkadii A. & Arriaga, J.
Object Type: Article
System: The UNT Digital Library
Electrodynamics of superlattices with ultra-thin metal layers: quantum Landau damping and band gaps with nonzero density of states (open access)

Electrodynamics of superlattices with ultra-thin metal layers: quantum Landau damping and band gaps with nonzero density of states

This article develops a theory of electromagnetic transmission through dielectric-metal superlattices with ultra-thin metal films, in which electron motion in the direction perpendicular to the metal surfaces is quantized.
Date: October 16, 2018
Creator: Castillo-López, S. G.; Krokhin, Arkadii A.; Makarov, N. M. & Pérez-Rodríguez, F.
Object Type: Article
System: The UNT Digital Library
Generation of correlated binary sequences from white noise (open access)

Generation of correlated binary sequences from white noise

This article discusses a method for generation of correlated binary sequences from white noise.
Date: August 21, 2007
Creator: Izrailev, Felix M.; Krokhin, Arkadii A.; Makarov, N. M. & Usatenko, O. V.
Object Type: Article
System: The UNT Digital Library
Enhancement of Localization in One-Dimensional Random Potentials with Long-Range Correlations (open access)

Enhancement of Localization in One-Dimensional Random Potentials with Long-Range Correlations

This article discusses the enhancement of localization in one-dimensional random potentials with long-range correlations.
Date: March 28, 2008
Creator: Kuhl, Ulrich; Izrailev, Felix M. & Krokhin, Arkadii A.
Object Type: Article
System: The UNT Digital Library
Phononic crystal as a homogeneous viscous metamaterial (open access)

Phononic crystal as a homogeneous viscous metamaterial

Article develops a homogenization theory, representing the low-frequency limit for a phononic crystal of cylinders embedded in a viscous fluid.
Date: June 8, 2020
Creator: Krokhin, Arkadii A.; Zubov, Yu.; Ibarias, M. & Arriaga, J.
Object Type: Article
System: The UNT Digital Library
Poly(3-hydroxybutyrate) graft copolymer dense membranes for human mesenchymal stem cell growth (open access)

Poly(3-hydroxybutyrate) graft copolymer dense membranes for human mesenchymal stem cell growth

This article discusses the preparation of thermal-remolded membrane scaffolds from poly(3-hydroxybutyrate) grafted with 2-amino-ehtyl methacrylate hydrochloride.
Date: May 25, 2018
Creator: González-Torres, Maykel; Sánchez-Sánchez, Roberto; Solís-Rosales, Silvia G.; Brostow, Witold, 1934-; Reyes-Cervantes, Eric; Gutiérrez-Uribe, Janet Alejandra et al.
Object Type: Article
System: The UNT Digital Library
Electrostatic enhancement of light emitted by semiconductor quantum well (open access)

Electrostatic enhancement of light emitted by semiconductor quantum well

This article proposes an electrostatic mechanism for enhancement of light radiated from semiconductor emitter which is comparable in effect to plasmonic mechanism.
Date: October 13, 2015
Creator: Krokhin, Arkadii A.; Neogi, Arup; Llopis, A.; Mahat, M.; Gumen, L.; Pereira, S. et al.
Object Type: Article
System: The UNT Digital Library
Effective dielectric constants of photonic crystal of aligned anisotropic cylinders and the optical response of a periodic array of carbon nanotubes (open access)

Effective dielectric constants of photonic crystal of aligned anisotropic cylinders and the optical response of a periodic array of carbon nanotubes

This article discusses effective dielectric constants of photonic crystal of aligned anisotropic cylanders and the optical response of a periodic array of carbon nanotubes.
Date: October 25, 2005
Creator: Reyes, E.; Krokhin, Arkadii A. & Roberts, James A.
Object Type: Article
System: The UNT Digital Library
Making Sense Out of the Web (open access)

Making Sense Out of the Web

This paper discusses the main lines of research in deriving efficient Word Sense Disambiguation.
Date: November 2004
Creator: Mihalcea, Rada, 1974-
Object Type: Paper
System: The UNT Digital Library
Homogenization of Magnetodielectric Photonic Crystals (open access)

Homogenization of Magnetodielectric Photonic Crystals

This article discusses homogenization of magnetodielectric photonic crystals.
Date: July 9, 2004
Creator: Krokhin, Arkadii A. & Reyes, E.
Object Type: Article
System: The UNT Digital Library
Symmetry-induced tunneling in one-dimensional disordered potentials (open access)

Symmetry-induced tunneling in one-dimensional disordered potentials

This article discusses symmetry-induced tunneling in one-dimensional disordered potentials.
Date: July 17, 2008
Creator: Diez, Enrique; Izrailev, Felix M.; Krokhin, Arkadii A. & Rodriguez, A.
Object Type: Article
System: The UNT Digital Library
Inhomogeneous DNA: Conducting exons and insulating introns (open access)

Inhomogeneous DNA: Conducting exons and insulating introns

Article discussing inhomogeneous DNA and conducting exons and insulating introns.
Date: August 17, 2009
Creator: Krokhin, Arkadii A.; Bagci, V. M. K.; Izrailev, Felix M.; Usatenko, O. V. & Yampol'skii, V. A.
Object Type: Article
System: The UNT Digital Library
Sub-Diffraction-Limit Imaging System with two Interfacing Hyperbolic Metamaterials (open access)

Sub-Diffraction-Limit Imaging System with two Interfacing Hyperbolic Metamaterials

Article demonstrating that a system of two interfacing hyperbolic metamaterials may be used for direct subwavelength imaging in the visible range.
Date: October 27, 2021
Creator: Bronnikov, Kirill; Arriaga, J.; Krokhin, Arkadii A. & Drachev, Vladimir P.
Object Type: Article
System: The UNT Digital Library
Biocultural Calendars Across Four Ethnolinguistic Communities in Southwestern South America (open access)

Biocultural Calendars Across Four Ethnolinguistic Communities in Southwestern South America

Article describes how, since the mid-20th century, the so-called Great Acceleration has amplified processes of ecosystem degradation, extinction of biological species, displacement of local peoples, losses of languages, and cultural diversity. The authors examine cultural practices and socio-environmental changes across four contrasting ethnolinguistic communities in southwestern South America, from southern to northern Chile along a marked climatic gradient to show the broad application of the concept of biocultural calendars.
Date: April 20, 2023
Creator: Rozzi, Ricardo, 1960-; Álvarez, Ricardo; Castro, Victoria; Núñez, David; Ojeda, Jaime & Tauro, Alejandra
Object Type: Article
System: The UNT Digital Library
Field Environmental Philosophy: A Biocultural Ethic Approach to Education and Ecotourism for Sustainability (open access)

Field Environmental Philosophy: A Biocultural Ethic Approach to Education and Ecotourism for Sustainability

This article proposes an educational methodology, called field environmental philosophy (FEP), which orients ecotourism practices to reconnect citizens and nature in order to contribute to local and global sustainability. FEP’s methodology is starting to be adapted in other world regions, such as Germany, Japan, and Mexico, to integrate education and ecotourism for sustainability.
Date: April 19, 2021
Creator: Tauro, Alejandra; Ojeda, Jaime; Caviness, Terrance; Moses, Kelli P.; Moreno-Terrazas, Ren; Wright, Travis et al.
Object Type: Article
System: The UNT Digital Library
“¿Son Modos? Tonos y salmodia en Andrés Lorente (open access)

“¿Son Modos? Tonos y salmodia en Andrés Lorente

This book chapter discusses the distinction between modes and tones as corresponding to different epistemologies.
Date: 2013
Creator: Illari, Bernardo
Object Type: Book Chapter
System: The UNT Digital Library
Efectos De La Violencia De Pareja en Mujeres Migrantes (open access)

Efectos De La Violencia De Pareja en Mujeres Migrantes

This article analyzes the relationship between partner violence, depression and maternal self-efficacy in migrant women.
Date: January 30, 2013
Creator: Delgadillo-Guzmán, Leonor Guadalupe; Vargas Cortez, Agustín; Nievar, Angela; Argüello Zepeda, José Francisco & González Villanueva, Leonor
Object Type: Article
System: The UNT Digital Library
Rediscovery of the Elements: Thallium, Crookes, and Lamy (open access)

Rediscovery of the Elements: Thallium, Crookes, and Lamy

Article describing the nearly simultaneous discovery of thallium by William Crookes and Claude-August Lamy. Tourist information is included for areas in London, England, and Lille, France, that are significant to the lives of these two men.
Date: Winter 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Object Type: Article
System: The UNT Digital Library
Synthesis, characterization, and in vitro evaluation of gamma radiation-induced PEGylated isoniazid (open access)

Synthesis, characterization, and in vitro evaluation of gamma radiation-induced PEGylated isoniazid

Article describes experiment where researchers synthesized a PEGylated isoniazid (PEG-g-INH or PEG–INH) by gamma radiation-induced polymerization for the first time.
Date: August 6, 2019
Creator: González-Torres, Maykel; Guzmán-Beltrán, Silvia; Mata-Gómez, Marco A.; González-Valdez, José; Leyva-Gómez, Gerardo; Melgarejo-Ramírez, Yaaziel et al.
Object Type: Article
System: The UNT Digital Library
Gabriel Trujillo Muñoz: Escritor, editor y estudioso de la ciencia ficción mexicana (open access)

Gabriel Trujillo Muñoz: Escritor, editor y estudioso de la ciencia ficción mexicana

This article provides a panoramic overview of Gabriel Trujillo Muñoz's most relevant works.
Date: April 9, 2014
Creator: Manickam, Samuel C.
Object Type: Article
System: The UNT Digital Library
Spatial Targeting of Agricultural Support Measures: Indicator-Based Assessment of Coverages and Leakages (open access)

Spatial Targeting of Agricultural Support Measures: Indicator-Based Assessment of Coverages and Leakages

This article evaluates the targeting strategy of a national-level program in Mexico that distributed agricultural support based on seven criteria that prioritized poor smallholder farming communities at high risk of cropland failure. The findings highlight the continued lack of financial support for smallholder agriculture in Mexico, despite program rules and priority statements that stress the vulnerability of this sector. The article also illustrates the important role of spatial targeting in better aligning agricultural support payments with stated policy priorities.
Date: July 15, 2021
Creator: LaFevor, Matthew C.; Ponette-González, Alexandra G.; Larson, Rebecca & Mungai, Leah M.
Object Type: Article
System: The UNT Digital Library
Reactions of a Ru(II) Phenyl Complex with Substrates that Possess C-N or C-O Multiple Bonds: C-C Bond Formation, N-H Bond Cleavage, and Decarbonylation Reactions (open access)

Reactions of a Ru(II) Phenyl Complex with Substrates that Possess C-N or C-O Multiple Bonds: C-C Bond Formation, N-H Bond Cleavage, and Decarbonylation Reactions

Article on the reactions of an Ru(II) phenyl complex with substrates that possess C-N or C-O multiple bonds and C-C bond formation, N-H bond cleavage, and decarbonylation reactions.
Date: February 8, 2006
Creator: Lee, John P.; Pittard, Karl A.; DeYonker, Nathan J.; Cundari, Thomas R., 1964-; Gunnoe, T. Brent & Petersen, Jeffrey L.
Object Type: Article
System: The UNT Digital Library