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619 Matching Results
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Detection of invisible and crucial events: from seismic fluctuations to the war against terrorism
Paper discussing the detection of invisible and crucial events.
Date:
October 28, 2003
Creator:
Allegrini, Paolo; Fronzoni, Leone; Grigolini, Paolo; Latora, Vito; Mega, Mirko S.; Palatella, Luigi et al.
Object Type:
Paper
System:
The UNT Digital Library
Detection of Pancreatic Cancer miRNA with Biocompatible Nitrogen-Doped Graphene Quantum Dots
Article detects the presence of a specific pancreatic cancer-derived miRNA (pre-miR-132) using the fluorescence properties of biocompatible nitrogen-doped graphene quantum dots (NGQDs) synthesized using a bottom-up approach from a single glucosamine precursor. This non-invasive approach allows cancer-specific miRNA detection to facilitate early diagnosis of various forms of cancer.
Date:
August 20, 2022
Creator:
Ajgaonkar, Ryan; Lee, Bong; Valimukhametova, Alina; Nguyen, Steven; Gonzalez-Rodriguez, Roberto; Coffer, Jeffery et al.
Object Type:
Article
System:
The UNT Digital Library
Development of a Thulium Fiber Laser for an Atomic Spectroscopy Experiment
This article is a simplified analysis of a convenient thulium fiber laser source with 3 W of output power operating at a wavelength of 2059 nm with a slope efficiency of 49% with respect to input pump power and 60% with respect to absorbed pump power. The laser was applied in an atomic helium spectroscopy experiment to quench ³He (2058.63 nm) and ⁴He (2058.69 nm) meta-stable singlets (2¹S0), allowing for further investigation of the helium fine structure.
Date:
February 15, 2020
Creator:
Currey, Ronnie; Khademian, Ali & Shiner, David
Object Type:
Article
System:
The UNT Digital Library
Dielectric function of six elemental metals
This article presents an accurate first-principles study of the electronic structure and absorption spectrum of six elemental metals (aluminium, gold, silver, copper, palladium, platinum) using density functional theory in an all-electron full-potential framework.
Date:
December 2020
Creator:
Pogodaeva, Maria K.; Levchenko, Sergey; Drachev, Vladimir P. & Gabitov, Ildar R.
Object Type:
Article
System:
The UNT Digital Library
Diffusion Entropy and Waiting Time Statistics of Hard-X-Ray Solar Flares
Article on diffusion entropy and waiting time statistics of hard-x-ray solar flares.
Date:
March 25, 2002
Creator:
Grigolini, Paolo; Leddon, Deborah & Scafetta, Nicola
Object Type:
Article
System:
The UNT Digital Library
Direct evidence for the amorphous silicon phase in visible photoluminescent porous silicon
Article on direct evidence for the amorphous silicon phase in visible photoluminescent porous silicon.
Date:
June 1, 1992
Creator:
Pérez, José M.; Villalobos, J.; McNeill, P.; Prasad, J.; Cheek, R.; Kelber, Jeffry A. et al.
Object Type:
Article
System:
The UNT Digital Library
Direct ionization and electron capture in M-shell x-ray production by fluorine ions
This article discusses direct ionization and electron capture in M-shell x-ray production by fluorine ions.
Date:
November 1983
Creator:
Mehta, R.; Duggan, Jerome L.; McDaniel, Floyd Del. (Floyd Delbert), 1942-; Andrews, M. C.; Lapicki, Gregory; Miller, P. D. et al.
Object Type:
Article
System:
The UNT Digital Library
Direct Measurement of Group Delay Dispersion in Metamagnetics for Ultrafast Pulse Shaping
This article explores the use of magnetic resonant metamaterials, so called metamagnetics, as dispersive elements for optical pulse shaping.
Date:
September 24, 2012
Creator:
Brown, Dean P.; Walker, Mark A.; Urbas, Augustine M.; Kildishev, Alexander V.; Xiao, Shumin & Drachev, Vladimir P.
Object Type:
Article
System:
The UNT Digital Library
The Discovery of a Nearby M Dwarf
This article reports the serendipitous discovery of a nearby M dwarf star, found while observing the old nova DN Gem at the Wise Observatory.
Date:
April 1999
Creator:
Shemmer, Ohad & Kaspi, Shai
Object Type:
Article
System:
The UNT Digital Library
Discovery of higher-order topological insulators using the spin Hall conductivity as a topology signature
This article shows a connection between spin Hall effect and HOTIs using a combination of ab initio calculations and tight-binding modeling. The model demonstrates how a non-zero bulk midgap spin Hall conductivity (SHC) emerges within the HOTI phase. This work guides novel experimental and theoretical advances towards higher-order topological insulator realization and applications.
Date:
April 12, 2021
Creator:
Costa, Marcio; Mera Acosta, Carlos; Padilha, Antonio C.M.; Cerasoli, Frank T.; Buongiorno Nardelli, Marco & Fazzio, Adalberto
Object Type:
Article
System:
The UNT Digital Library
Discovery of the first heavily obscured QSO candidate at z > 6 in a close galaxy pair
This article reports the Chandra discovery of the first heavily obscured QSO candidate in the early universe, hosted by a close (≈5 kpc) galaxy pair at z = 6.515.
Date:
May 17, 2022
Creator:
Vito, F.; Brandt, William Nielsen; Bauer, Franz E.; Gilli, Roberto; Luo, B.; Zamorani, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Disentangling Orbital and Valley Hall Effects in Bilayers of Transition Metal Dichalcogenides
This article shows that a bilayer of 2H-MoS₂ is an orbital Hall insulator that exhibits a sizeable orbital Hall effect in the absence of both spin and valley Hall effects. The results are based on density functional theory and low-energy effective model calculations and strongly suggest that bilayers of TMDs are highly suitable platforms for direct observation of the orbital Hall insulating phase in two-dimensional materials.
Date:
February 5, 2021
Creator:
Cysne, Tarik P.; Costa, Marcio; Canonico, Luis M.; Buongiorno Nardelli, Marco; Muniz, R. B. & Rappoport, Tatiana G.
Object Type:
Article
System:
The UNT Digital Library
Dissociation of Water on Defective Carbon Substrates
Article on the dissociation of water on defective carbon substrates.
Date:
September 23, 2005
Creator:
Kostov, Milen; Santiso, Erik; George, A. M.; Gubbins, Keith E. & Buongiorno Nardelli, Marco
Object Type:
Article
System:
The UNT Digital Library
Do gene-environment interactions play a role in COVID-19 distribution? The case of Alpha-1 Antitrypsin, air pollution and COVID-19
This article evaluates the role that gene-environment interaction between air-pollution and Alpha-1 Antitrypsin (AAT) genes plays in the severity of COVID-19. Results find parallelism between the number of COVID deaths and the AAT*air pollution global risk in Europe.
Date:
May 7, 2021
Creator:
Murgia, Nicola; Corsico, Angelo Guido; D'Amato, Gennaro; Maesano, Cara Nichole; Tozzi, Arturo & Annesi-Maesano, Isabella
Object Type:
Article
System:
The UNT Digital Library
Dominant Role of Hole Transport Pathway in Achieving Record High Photoconductivity in Two-Dimensional Metal-Organic Frameworks
Article describes how metal-organic frameworks with mobile charges have attracted significant attention due to their potential application in photoelectric devices, chemical resistance sensors, and catalysis. The authors report the mechanisms of photoinduced charge transport and electron dynamics in the conductive 2D M−HHTP MOFs and their correlation with photoconductivity using the combination of time-resolved terahertz spectroscopy, optical transient absorption spectroscopy, X-ray transient absorption spectroscopy, and density functional theory calculations.
Date:
October 23, 2023
Creator:
Wang, Denan; Ostresh, Sarah; Streater, Daniel; He, Peilei; Nyakuchena, James; Ma, Qiushi et al.
Object Type:
Article
System:
The UNT Digital Library
Dual-Band High Efficiency Terahertz Meta-Devices Based on Reflective Geometric Metasurfaces
Article proposing a novel reflective building block (unit cell) to work at two arbitrary terahertz frequency bands with independent phase control at each band.
Date:
April 18, 2019
Creator:
Lin, Yuankun; Wang, Tailei; Xie, Rensheng; Zhu, Shouzheng; Gao, Jianjun; Xin, Mingbo et al.
Object Type:
Article
System:
The UNT Digital Library
Dual levitated coils for antihydrogen production
Article on theoretical and experimental efforts to use dual levitated coils to confine relatively large, cold, dense non-drifting recombining antihydrogen plasmas. The theoretical effort includes the development of a classical trajectory Monte Carlo simulation of confinement. The experimental effort includes levitation of a NdFeB permanent ring magnet, which produces a magnetic field that is qualitatively similar to the field that would be produced by the two coaxial superconducting magnetic coils.
Date:
April 19, 2013
Creator:
Wofford, Joshua D. & Ordonez, Carlos A.
Object Type:
Article
System:
The UNT Digital Library
Dust Covering Factor, Silicate Emission, and Star Formation in Luminous QSOs
This article presents Spitzer IRS low resolution, mid-IR spectra of a sample of 25 high luminosity QSOs at 2 < z < 3.5.
Date:
April 12, 2007
Creator:
Maiolino, Roberto; Shemmer, Ohad; Imanishi, Masatoshi; Netzer, Hagai; Oliva, Ernesto; Lutz, Dieter et al.
Object Type:
Article
System:
The UNT Digital Library
Dynamic Approach to the Thermodynamics of Superdiffusion
This article discusses dynamic approach to the thermodynamics of superdiffusion.
Date:
April 26, 1999
Creator:
Buiatti, Marco, 1972-; Grigolini, Paolo & Montagnini, Anna
Object Type:
Article
System:
The UNT Digital Library
Dynamic Conductance of Carbon Nanotubes
Article on dynamic conductance of carbon nanotubes.
Date:
March 27, 2000
Creator:
Roland, Christopher; Buongiorno Nardelli, Marco; Wang, Jian & Guo, Hong
Object Type:
Article
System:
The UNT Digital Library
Dynamical approach to Lévy processes
This article discusses a dynamical approach to Lévy processes, which makes it possible to derive all statistical properties of the diffusion process from the correlation function of the dichotomous fluctuating variable Φy(t).
Date:
November 1996
Creator:
Allegrini, Paolo; Grigolini, Paolo & West, Bruce J.
Object Type:
Article
System:
The UNT Digital Library
Dynamical model for DNA sequences
This article discusses a dynamical model for DNA sequences based on the assumption that the statistical properties of DNA paths are determined by the joint action of two processes, one deterministic with long-range correlations and the other random and δ-function correlated.
Date:
November 1995
Creator:
Allegrini, Paolo; Barbi, M.; Grigolini, Paolo & West, Bruce J.
Object Type:
Article
System:
The UNT Digital Library
Dynamical Origin of Memory and Renewal
This article discusses a dynamical origin of memory and renewal.
Date:
August 8, 2006
Creator:
Cakir, Rasit; Grigolini, Paolo & Krokhin, Arkadii A.
Object Type:
Article
System:
The UNT Digital Library
The Dynamics of EEG Entropy
This article discusses the dynamics of EEG entropy.
Date:
March 5, 2009
Creator:
Ignaccolo, Massimiliano; Latka, Miroslaw; Jernajczyk, Wojciech; Grigolini, Paolo & West, Bruce J.
Object Type:
Article
System:
The UNT Digital Library