cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Polarized Radiation Transfer in Neutron Star Surface Layers
Creators: name: Barchas, Joseph A.
name: Hu, Kun
name: Baring, Matthew G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The study of polarized radiation transfer in the highly-magnetized surface locales of neutron stars is of great interest to the understanding of accreting X-ray pulsars, rotation-powered pulsars and magnetars. This paper explores scattering transport in the classical magnetic Thomson domain that is of broad applicability to these neutron star classes. The development of a Monte Carlo simulation for the polarized radiative transfer is detailed: it employs an electric field vector formalism to enable a breadth of utility in relating linear, circular and elliptical polarizations. The simulation can be applied to any neutron star surface locale, and is adaptable to accretion column and magnetospheric problems. Validation of the code for both intensity and Stokes parameter determination is illustrated in a variety of ways. Representative results for emergent polarization signals from surface layers are presented for both polar and equatorial magnetic locales, exhibiting contrasting signatures between the two regions. There is also a strong dependence of these characteristics on the ratio of the frequency of a photon to the cyclotron frequency. Polarization signatures for high opacity domains are presented, highlighting compact analytic approximations for the Stokes parameters and anisotropy relative to the local field direction for an extended range of frequencies. These are very useful in defining injection conditions deep in the simulation slab geometries, expediting the generation of emission signals from highly opaque stellar atmospheres. The results are interpreted throughout using the polarization characteristics of the magnetic Thomson differential cross section.
description: 25 pages, 10 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society
NA-ION INTERCALATED HIGHLY TRANSPARENT AND CONDUCTIVE FILMS
Creators: name: GU, FENG
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Materials Science
subject: Na-ion Intercalation
subject: Printed RGO Films
subject: Transparent Conductive Film

description: Transparent conductive films (TCFs) are materials with both high optical transmittance and high electrical conductivity. This thesis focuses on developing high transparent, high conductive, and low-cost transparent conductive films. This thesis reports Na-ion intercalated reduced graphene oxide (Na-RGO) films as low-cost, scalable, high performance transparent conductive films. The interlayer distance of RGO allows for Na-ion intercalation, which causes energy band structure changes and electron doping. As a result, a simultaneous increase in both transmittance and sheet conductivity has been achieved. The visible light transmittance and sheet resistance showed great enhancement from 36%, 83 kΩ/sq to 87%, 311 Ω /sq before and after Na-ion intercalation. The air stability test showed that the optical and electronic properties of Na-RGO films were more stable than Li-ion intercalated graphene. The results demonstrated the great potential of Na-ion intercalated printed RGO films for TCFs applications.
Rejoinder: Classifier Technology and the Illusion of Progress
Creators: name: Hand, David J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Rejoinder: Classifier Technology and the Illusion of Progress [math.ST/0606441]
description: Published at http://dx.doi.org/10.1214/088342306000000079 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Development of UV-Visible spectrophotometric methods for the quantitative and in silico studies for cilazapril optimized by response surface methodology
Creators: name: Khalil, Adila
name: Kashif, Mohammad
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine

description: For cilazapril, analytical methods based on donor-acceptor phenomenon that are simple, rapid with broad linear dynamic range for the quantification of drug are not available in the literature. Considering the requirement for the methods, in this study, two economic, potent analytical methods based on the complexation of cilazapril with 𝛑-acceptors, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and 2,5-Dichloro-3,6-dihydroxy-p-benzoquinone (CA) were developed, validated and studied spectrophotometrically. Various analytical data were discussed. The effects of experimental variables were optimized from the results of in silico technique i.e., Box-Behnken design under response surface methodology. Linear Dynamic range was significantly good in the range of 6 – 60 μg mL−1 and 20 – 260 μg mL−1 for DDQ and CA methods. Moreover, molecular docking studies corroborated the experimental results. Further, the methods were supplemented by the pharmaceutical and biological application for the quantitative assay of cilazapril. Collectively, the results of the reported method of the analysis suggest that the developed approach is simple, sensitive, accurate and precise.
Kinetic stabilization of Fe film on (4 by 2)-GaAs(100)
Creators: name: Lee, Jae-Min
name: OH, S. -J.
name: Kim, K. J.
name: Yang, S. -U.
name: Kim, J. -H.
name: Kim, J. -S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We grow Fe film on (4 by 2)-GaAs(100) at low temperature, (~ 130 K) and study their chemical structure by photoelectron spectroscopy using synchrotron radiation. We observe the effective suppression of As segregation and remarkable reduction of alloy formation near the interface between Fe and substrate. Hence, this should be a way to grow virtually pristine Fe film on GaAs(100). Further, the Fe film is found stable against As segregation even after warmed up to room temperature. There only forms very thin, ~ 8 angstrom thick interface alloy. It is speculated that the interface alloy forms via surface diffusion mediated by interface defects formed during the low temperature growth of the Fe film. Further out-diffusion of both Ga and As are suppressed because it should then proceed via inefficient bulk diffusion.
description: 4 figures
Variation of the speed of light and a minimum speed in the scenario of an inflationary universe with accelerated expansion
Creators: name: Cruz, Claudio Nassif
name: Silva, Fernando A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper we aim to investigate a deformed relativistic dynamics well-known as Symmetrical Special Relativity (SSR) related to a cosmic background field that plays the role of a variable vacuum energy density associated to the temperature of the expanding universe with a cosmic inflation in its early time and an accelerated expansion for its very far future time. In this scenario, we show that the speed of light and an invariant minimum speed present an explicit dependence on the background temperature of the expanding universe. Although finding the speed of light in the early universe with very high temperature and also in the very old one with very low temperature, being respectively much larger and much smaller than its current value, our approach does not violate the postulate of Special Relativity (SR), which claims the speed of light is invariant in a kinematics point of view. Moreover, it is shown that the high value of the speed of light in the early universe was drastically decreased and increased respectively before the beginning of the inflationary period. So we are led to conclude that the theory of Varying Speed of Light (VSL) should be questioned as a possible solution of the horizon problem for the hot universe.
description: 18 pages, 8 figures. arXiv admin note: text overlap with arXiv:1710.11497, arXiv:1205.2298
UNDERSTANDING AND OVERCOMING KEY CONSTRAINTS FOR SMALL AND MEDIUM ENTERPRISES (SMEs) IN NANGARHAR
Creators: name: IRFAN ULLAH STANIKZAI
name: KHUSHAL JAWAD
name: Dr. HAMDULLAH KAKAR
Publisher: name: Zenodo
Year: 2023
Subjects: Small and Medium Enterprises (SME's), Key Constraints, Nangarhar.

description: Abstract

SMEs play a crucial role in driving Afghanistan's economy, as they possess the ability to generate increased employment opportunities, enhance local technology, and establish a foundation for sustainable industrialization and corporate sectors in the future. The aim of this research is to identify the primary obstacles faced by SMEs operating in Nangarhar province. The research took place in Nangarhar, where data was collected using the methods of observation and focus group discussions. Purposeful sampling techniques were employed to select participants, and face-to-face interactions were conducted during the focus group discussions and observations. The aim was to gain an understanding of the primary challenges faced by SMEs in Nangarhar. The study identified several key constraints to the development of SMEs. Primary among these is the poor state of infrastructure and unreliable electricity. Additionally, the challenges encompass limited access to finance, political and security instability, restricted market access, skills and capacity gaps, inadequate access to technology and innovation, insufficient business support services, weak supply chain, lack of proper business knowledge and planning, intense competition in the domestic market,  high costs of raw materials and equipment, and insufficient subsidies. These constraints, play significant roles in hindering the growth of SMEs.
Dynamical relaxation of correlators in periodically driven integrable quantum systems
Creators: name: Aditya, Sreemayee
name: Samanta, Sutapa
name: Sen, Arnab
name: Sengupta, K.
name: Sen, Diptiman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that the correlation functions of a class of periodically driven integrable closed quantum systems approach their steady state value as $n^{-(α+1)/β}$, where $n$ is the number of drive cycles and $α$ and $β$ denote positive integers. We find that generically $β=2$ within a dynamical phase characterized by a fixed $α$; however, its value can change to $β=3$ or $β=4$ either at critical drive frequencies separating two dynamical phases or at special points within a phase. We show that such decays are realized in both driven Su-Schrieffer-Heeger (SSH) and one-dimensional (1D) transverse field Ising models, discuss the role of symmetries of the Floquet spectrum in determining $β$, and chart out the values of $α$ and $β$ realized in these models. We analyze the SSH model for a continuous drive protocol using a Floquet perturbation theory which provides analytical insight into the behavior of the correlation functions in terms of its Floquet Hamiltonian. This is supplemented by an exact numerical study of a similar behavior for the 1D Ising model driven by a square pulse protocol. For both models, we find a crossover timescale $n_c$ which diverges at the transition. We also unravel a long-time oscillatory behavior of the correlators when the critical drive frequency, $ω_c$, is approached from below ($ω< ω_c$). We tie such behavior to the presence of multiple stationary points in the Floquet spectrum of these models and provide an analytic expression for the time period of these oscillations.
description: v1; 16 pages, 8 figs
Applications of M.G. Krein's Theory of Regular Symmetric Operators to Sampling Theory
Creators: name: Silva, Luis O.
name: Toloza, Julio H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Spectral Theory (math.SP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 41A05, 46E22, 47B25, 47N50, 47N99, 94A20

description: The classical Kramer sampling theorem establishes general conditions that allow the reconstruction of functions by mean of orthogonal sampling formulae. One major task in sampling theory is to find concrete, non trivial realizations of this theorem. In this paper we provide a new approach to this subject on the basis of the M. G. Krein's theory of representation of simple regular symmetric operators having deficiency indices (1,1). We show that the resulting sampling formulae have the form of Lagrange interpolation series. We also characterize the space of functions reconstructible by our sampling formulae. Our construction allows a rigorous treatment of certain ideas proposed recently in quantum gravity.
description: 15 pages; v2: minor changes in abstract, addition of PACS numbers, changes in some keywords, some few changes in the introduction, correction of the proof of the last theorem, and addition of some comments at the end of the fourth section
Elicitation - switch-reference
Creators: name: Anonymous I
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with speaker MPR. Topics covered include word order with complex nominas, switch-reference, attitude reports, and verbal morphology.
Understanding photoluminescence in semiconductor Bragg-reflection waveguides: Towards an integrated, GHz-rate telecom photon pair source
Creators: name: Auchter, Silke
name: Schlager, Alexander
name: Thiel, Hannah
name: Laiho, Kaisa
name: Pressl, Benedikt
name: Suchomel, Holger
name: Kamp, Martin
name: Höfling, Sven
name: Schneider, Christian
name: Weihs, Gregor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Compared to traditional nonlinear optical crystals, like BaB$_2$O$_4$, KTiOPO$_4$ or LiNbO$_3$, semiconductor integrated sources of photon pairs may operate at pump wavelengths much closer to the bandgap of the materials. This is also the case for Bragg-reflection waveguides (BRW) targeting parametric down-conversion (PDC) to the telecom C-band. The large nonlinear coefficient of the AlGaAs alloy and the strong confinement of the light enable extremely bright integrated photon pair sources. However, under certain circumstances, a significant amount of detrimental broadband photoluminescence has been observed in BRWs. We show that this is mainly a result of linear absorption near the core and subsequent radiative recombination of electron-hole pairs at deep impurity levels in the semiconductor. For PDC with BRWs, we conclude that devices operating near the long wavelength end of the S-band or the short C-band require temporal filtering shorter than 1 ns. We predict that shifting the operating wavelengths to the L-band and making small adjustments in the material composition will reduce the amount of photoluminescence to negligible values. Such measures enable us to increase the average pump power and/or the repetition rate, which makes integrated photon pair sources with on-chip multi-gigahertz pair rates feasible.
description: 10 pages, 7 figures
On the origin and evolutionary state of RZ Cas, KO Aql and S Equ
Creators: name: Mennekens, N.
name: De Greve, J. -P.
name: Van Rensbergen, W.
name: Yungelson, L. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims. Determination of the present evolutionary state and the restrictions on the initial mass ratios of RZ Cas, KO Aql and S Equ. Methods. Comparison of mass gaining stars with evolutionary models of single stars with the same mass and subsequent comparison with accretion tracks from simultaneous conservative binary evolution. Results. The gainers are in an early main sequence stage (Xc greater than 0.5), with KO Aql being almost unevolved (assuming quasi-thermal equilibrium). The initial donor/gainer mass ratios Mdi/Mgi must be larger than three to obtain the present mass and luminosity of the gainers.
description: 4 pages, 2 figures, accepted for publication in A&A; accepted version
Galaxy Environments in DEEP2: The Birth of the Red Sequence
Creators: name: Cooper, Michael
name: Newman, Jeff
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The DEEP2 Galaxy Redshift Survey is the first project to study the distant Universe by obtaining a data set comparable in size and nature to recent generations of local surveys. Made possible by the largest ground-based optical telescopes and new instrumentation, DEEP2 was designed to measure both the properties of galaxies at z ~ 1 and their distribution in space, enabling a number of unique tests of galaxy formation and evolution. Here, we first provide an overview of the survey, including the planned second major data release scheduled for early 2007. We then present new results from DEEP2 pertaining to the relationship between galaxy properties and environment at intermediate redshift, revealing where and when typical ~L* galaxies began quenching and moved onto the red sequence in significant number.
description: 2 pages (1 figure), for the IAU Symposium 235, Galaxies Across the Hubble Time, J. Palous & F. Combes, eds. Uses iaus.cls, included
Reduced sigma-model on AdS_5 x S^5: one-loop scattering amplitudes
Creators: name: Klose, Thomas
name: Zarembo, Konstantin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute one-loop S-matrix in the reduced sigma-model which describes AdS_5 x S^5 string theory in the near-flat-space limit. The result agrees with the corresponding limit of the S-matrix in the full sigma-model, which demonstrates the consistency of the reduction at the quantum level.
description: 9 pages, 1 figure; v2: reference added; v3: misprint in (3.6) corrected; v4: typo in (3.4) corrected; v5: new form of the action
AKADEMIK BILIM VA OLIY TA'LIM INTEGRATSIYASINI TA'MINLASHDA NODIR QO'LYOZMALARNING O'RNI
Creators: name: Salayeva, Muborak
Publisher: name: Zenodo
Year: 2024

description: Maqolada O‘zbekiston Milliy universitetining o‘quv va o‘quv jarayonida Axborot resurs markazi qoshidagi “Noyob qo‘lyozmalar” muzeyining qadimiy qo‘lyozmalaridan foydalanish imkoniyati yaratilgani haqida so‘z boradi.
Elicitation - switch-reference and relative clauses
Creators: name: Piño Bonangué, José
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with José Piño Bonangué. Topics covered include switch-reference, attitude reports, and relative clauses.
Compact radio source variability at centimeter wavelenghts
Creators: name: Scott, William K.
Publisher: name: University of British Columbia
Year: 2009

description: The discovery and monitoring of variations of radio flux density in compact radio sources has greatly increased our understanding concerning the nature of many astronomical objects. The exceptional radio sources SS433 and Cygnus X-3 are examples of objects that first stood out because of their dramatic radio variability. This thesis presents a catalogue of 146 radio-variables, discovered with the data from the Greenbank Northern Hemisphere 6 cm sky survey. In addition, one particular radio-variable, GT2318+620, is investigated in more detail by the use of VLA observations.
The Effect of Hurricane Sandy on New Jersey Atlantic Coastal Marshes Evaluated with Satellite Imagery
Creators: name: Roman, Diana Marie
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Environmental science
subject: Remote sensing
subject: Coastal Marshes
subject: Hurricane Sandy
subject: Satellite Imagery

description: Hurricane Sandy, one of several large extratropical hurricanes to impact New Jersey since 1900, produced some of the most extensive coastal destruction within the last fifty years. Though the damage to barrier islands from Sandy has been well-documented, the effect of Sandy on the New Jersey coastal marshes has received little attention. The objective of this analysis, based on twenty Landsat Thematic Mapper (TM) data sets collected between 1984 and 2011 as well as three Landsat 8 Operational Land Imager (OLI) images collected between 2013 and 2014 was to determine the effect of Hurricane Sandy on the New Jersey Atlantic coastal marshes.  Image processing was performed using ENVI (Environment for Visualizing Images) image analysis software with the NDX model (Rogers and Kearney, 2004). The study area was limited to the marshes located in Landsat Path 14 and Rows 32 and 33 which are the northern and southern parts of New Jersey. Validation was achieved through field work (visual estimation of vegetation density and cover) and through a marsh vegetation biomass study at five locations. Two Spot 5 data sets, covering the study area, but with a 10 m spatial resolution were used to estimate land loss between October 13, 2012 (before Sandy) and December 30, 2012 (after Sandy and after vegetation senescence occurred). Results support the conclusion that the marshland area was stable between 1984 and 2006 with only minor inter-annual variation, but has decreased steadily in the density of vegetation coverage since 2007 from different impacts including Hurricane Sandy.   Hurricane Sandy caused the greatest damage to low-lying marshes located on islands close to where landfall occurred.
Development of a low background environment for the cryogenic dark matter search
Creators: name: Da Silva, Angela Jane
Publisher: name: University of British Columbia
Year: 2009

description: A major problem currently facing astrophysics and cosmology is the question of dark matter. Although there is little doubt about the existence of dark matter, there is considerable uncertainty about the abundance and nature of this matter. One possibility is that dark matter consists of weakly interacting massive particles (WIMPs), such as the lightest stable particle in supersymmetry models. Direct detection experiments look for nuclear recoils from WIMPs scattering in a detector. The first generation of direct detection experiments were ultimately limited by radioactive backgrounds. The Cryogenic Dark Matter Search (CDMS) is a direct detection experiment based on novel particle detectors operated at millikelvin temperatures that provide intrinsic background rejection. This capability, however, is not 100% effective. Therefore a low background environment is essential to the experiment. To create such an environment, all possible background sources have been extensively studied both by measuring the background contribution from muons, photons and neutrons and by performing detailed Monte Carlo simulations of the photon and neutron backgrounds. The results of this investigation, as discussed in this thesis, have influenced all aspects of the CDMS experiment. The initial site for the CDMS experiment is the Stanford Underground Facility. The relatively high muon flux at this site due to its shallow depth was balanced against the convenience of a local site with the unlimited access necessary for operating a complicated cryogenic system and developing new detector technology. The cryostat used to house the detectors was designed to accommodate the extensive shielding necessary to reduce the ambient backgrounds to acceptable levels and to minimize the amount of radioactive contamination near the detectors. Simulations and measurements of the local backgrounds led to a layered shield design that consists primarily of plastic scintillators to veto muons, lead and copper to attenuate photons and polyethylene to moderate neutrons. With the background rejection capabilities of the cryogenic detectors and the low background environment created in the Stanford Underground Facility, we expect to extend the current limit on WIMP dark matter by more than an order of magnitude and begin testing models for the lightest supersymmetric particle.
Monitoring levels of dissolved methane and metals in Maryland streams overlying the Marcellus Shale prior to hydraulic fracturing
Creators: name: Coulter, Caroline
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Water resources management
subject: Geochemistry
subject: FOS: Earth and related environmental sciences
subject: Environmental management

description: In western Maryland above the Marcellus Shale, 25 streams were monitored for baseline concentrations of dissolved CH4, Sr2+, and Ba2+, constituents that may be affected by fracking activity.  Migrated shale CH4 may intrude streams, and Sr2+ and Ba2+ may be introduced by fracking fluid leakages or spills.  Stream constituents were also measured in Maryland’s coastal plain for reference.  In western Maryland, CH4 concentrations are significantly variable yet in agreement with concentrations reported for other North American pristine rivers.  Measurements of δ13C-CH4 suggest CH4 is primarily biogenic.  Dissolved Sr2+ and Ba2+ are spatially and temporally variable, although Sr/Ba ratios are relatively stable at most sites, indicating these may be useful fracking fluid tracers.  Major ions Na+, K+, Mg2+, Ca2+, Cl−, SO42-, and HCO3– were measured. These were elevated relative to Sr2+ and Ba2+ and are not suitable fracking fluid tracers.  Major ions were highly variable, indicative of variable bedrock geology in western MD.
Dust Temperature of Compact Star-forming Galaxies at $ z \sim 1-3$ in 3D-{\it HST}/CANDELS
Creators: name: Chen, Zuyi
name: Fang, Guanwen
name: Lin, Zesen
name: Zhang, Hong-Xin
name: Chen, Guangwen
name: Kong, Xu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent simulation studies suggest that the compaction of star-forming galaxies (SFGs) at high redshift might be a critical process, during which the central bulge is being rapidly built, followed by quenching of the star formation. To explore dust properties of SFGs with compact morphology, we investigate the dependence of dust temperature, $T_{\rm{dust}}$, on their size and star formation activity, using a sample of massive SFGs with $\log (M_{\ast}/M_{\odot}) > 10$ at $1 < z < 3$, drawn from the 3D-{\it HST}/CANDELS database in combination with deep {\it Herschel} observations. $T_{\rm{dust}}$ is derived via fitting the mid-to-far-infrared photometry with a mid-infrared power law and a far-infrared modified blackbody. We find that both extended and compact SFGs generally follow a similar $T_{\rm{dust}}-z$ evolutionary track as that of the main-sequence galaxies. The compact SFGs seem to share similar dust temperature with extended SFGs. Despite the frequent occurrence of AGNs in compact SFGs, we do not observe any effect on dust caused by the presence of AGN in these galaxies during the compaction. Our results disfavor different ISM properties between compact and extended SFGs, suggesting that a rapid and violet compaction process might be not necessary for the formation of compact SFGs.
description: Accepted for publication in ApJ
The Cost of Turning Heads - The Design and Evaluation of Vocabulary Prompts on a Head-Worn Display to Support Persons with Aphasia in Conversation
Creators: name: Williams, Kristin
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Information technology
subject: Language
subject: Information science
subject: accessibility
subject: aphasia
subject: conversation support
subject: head-worn display
subject: human-computer interaction
subject: wearable computing

description: Symbol-based dictionaries could provide persons with aphasia a resource for finding needed words, but they can detract from conversation. This research explores the potential of head-worn displays (HWDs) to provide glanceable vocabulary support that is unobtrusive and always-available. Two formative studies explored the benefits and challenges of using a HWD, and evaluated a proof-of-concept prototype in both lab and field settings.  These studies showed that a HWD may allow wearers to maintain focus on the conversation, reduce reliance on external support (e.g., paper and pen, or people), and minimize the visibility of support by others. A third study compared use of a HWD to a smartphone, and found preliminary evidence that the HWD may offer a better overall experience with assistive vocabulary and may better support the wearer in advancing through conversation. These studies should motivate further investigation of head-worn conversational support.
Protein - Small Molecule docking with receptor flexibility in iMOLSDOCK
Creators: name: Paul, D. Sam
name: Gautham, N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We have earlier reported the iMOLSDOCK technique to perform induced-fit peptide-protein docking. iMOLSDOCK uses the mutually orthogonal Latin squares (MOLS) technique to sample the conformation and the docking pose of the small molecule ligand and also the flexible residues of the receptor protein, and arrive at the optimum pose and conformation. In this paper we report the extension carried out in iMOLSDOCK to dock nonpeptide small molecule ligands to receptor proteins. We have benchmarked and validated iMOLSDOCK with a dataset of 34 protein-ligand complexes with nonpeptide small molecules as ligands. We have also compared iMOLSDOCK with other flexible receptor docking tools GOLD v5.2.1 and AutoDock Vina. The results obtained show that the method works better than these two algorithms, though it consumes more computer time. The source code and binary of MOLS 2.0 (under a GNU Lesser General Public License) are freely available for download at https://sourceforge.net/projects/mols2-0/files/
description: 15 pages
Antisite effect on ferromagnetism in (Ga,Mn)As
Creators: name: Myers, R. C.
name: Sheu, B. L.
name: Jackson, A. W.
name: Gossard, A. C.
name: Schiffer, P.
name: Samarth, N.
name: Awschalom, D. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the Curie temperature and hole density of (Ga,Mn)As while systematically varying the As-antisite density. Hole compensation by As-antisites limits the Curie temperature and can completely quench long-range ferromagnetic order in the low doping regime of 1-2% Mn. Samples are grown by molecular beam epitaxy without substrate rotation in order to smoothly vary the As to Ga flux ratio across a single wafer. This technique allows for a systematic study of the effect of As stoichiometry on the structural, electronic, and magnetic properties of (Ga,Mn)As. For concentrations less than 1.5% Mn, a strong deviation from Tc ~ p^0.33 is observed. Our results emphasize that proper control of As-antisite compensation is critical for controlling the Curie temperatures in (Ga,Mn)As at the low doping limit.
description: 10 pages, 7 figures
Sinacroneuria orientalis Yang & Yang 1995
Creators: name: Sivec, Ignac
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Sinacroneuria
Sinacroneuria orientalis

description: Sinacroneuria orientalis Yang & Yang, 1995
 = Kamimuria flavata Navás, 1933:82. Holotype ♀ (Museum National d’Histoire Naturelle, Paris), Hangchow [Zhejiang Prov- ince], China [not Perla (Kamimuria) flavata Navás, 1924]
 Sinacroneuria orientalis Yang & Yang, 1995. Holotype ♂ (Entomological Museum of China Agricultural University), Huang- shan, Anhui Province, China
 Sinacroneuria flavata: Du et al., 1999:64
 Material examined. CHINA: Zhejiang Province, Hangchow, 1925, A. Pichon, 1 ♀ (Holotype, K. flavata Navás), Museum National d’Histoire Naturelle, Paris).
 Adult habitus. Triocellate. General color brown patterned with pale pigment. Head with a dark brown, Tshaped patch covering ocellar area and extending laterally from anterior ocellus toward compound eyes. M-line and calluses not strongly expressed; antennae and palpi brown. Pronotum rather uniformly brown with few, relatively small rugosities, femora with dark distal area and tibiae with dark proximal areas adjoining at knee. Wings brown with pale coastal area.
 Male. Described by Yang & Yang (1995).
 Female (from Kamimuria flavata holotype). Forewing length 16,5 mm. Subgenital plate separated into a pair of widely spaced, narrow, curved lobes; lobes extend partially over base of sternum 9. Patches of long hair occur laterad to subgenital plate lobes on posterior margin of sternum 8. Vagina somewhat bottle-shaped, with a pair of short, tubular accessory glands located at anterior corners; anterior section of vagina bearing a sclerotized ring and a hook-shaped seminal receptacle.
 Egg (from K. flavata holotype). Length ca. 0.42 mm, width ca. 0.32 mm. Collar a small, sessile, button-like process. Chorion coarsely punctate over entire surface.
 Comments. Navás (1924) proposed a new Japanese species Perla (Kamimuria) flavata, and later (Navás 1933), proposed Kamimuria flavata as a new Chinese species. The second name is an invalid secondary homonym (Zwick, in litt.) and also, based on the similar female subgenital plate structure, and similar head pattern, S. orientalis is a junior synonym of K. flavata, however Sinacroneuria orientalis remains the currently valid name and K. flavata is removed from the list of valid Sinacroneuria in Table 1.
description: Published as part of Sivec, Ignac & Stark, Bill P., 2020, Systematic notes on Sinacroneuria Yang & Yang, 1995 (Plecoptera: Perlidae), with descriptions of two new species from China, pp. 580-584 in Zootaxa 4732 (4) on page 581, DOI: 10.11646/zootaxa.4732.4.7, http://zenodo.org/record/3667398
Extrinsic topology of Floquet anomalous boundary states in quantum walks
Creators: name: Bessho, Takumi
name: Mochizuki, Ken
name: Obuse, Hideaki
name: Sato, Masatoshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bulk-boundary correspondence is a fundamental principle for topological phases where bulk topology determines gapless boundary states. On the other hand, it has been known that corner or hinge modes in higher order topological insulators may appear due to "extrinsic" topology of the boundaries even when the bulk topological numbers are trivial. In this paper, we find that Floquet anomalous boundary states in quantum walks have similar extrinsic topological natures. In contrast to higher order topological insulators, the extrinsic topology in quantum walks is manifest even for first-order topological phases. We present the topological table for extrinsic topology in quantum walks and illustrate extrinsic natures of Floquet anomalous boundary states in concrete examples.
description: 22 pages, 15 figures, 6 tables
Abstract models for heat engines
Creators: name: Tu, Z. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We retrospect three abstract models for heat engines which include a classic abstract model in textbook of thermal physics, a primary abstract model for finite-time heat engines, and a refined abstract model for finite-time heat engines. The detailed models of heat engines in literature of finite-time thermodynamics may be mapped into the refined abstract model. The future developments based on the refined abstract model are also surveyed.
description: Review, 11 pages. 8 figures
Correlation: An Analyzing Tool for Liquids and for Amorphous Solids
Creators: name: Rodríguez, Isaías
name: Valladares, Renela M.
name: Valladares, Alexander
name: Hinojosa-Romero, David
name: Santiago, Ulises
name: Valladares, Ariel A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: For almost a century, since Bernalś attempts at a molecular theory of liquid structure(Bernal [1]), correlation functions have been the bridge to compare theoretical calculations with experimental measurements in the study of disordered materials. Pair Distribution Functions (g(r)), Radial Distribution Functions (J(r)), Plane Angle Distributions (g(θ)) and Coordination Numbers (nc) have been widely used to characterize amorphous and liquid materials (Waseda [2]; Elliott [3]; Valladares et al. [4]) and, in particular Bulk Metallic Glasses (Miller and Liaw [5]; Galván-Colín et al. [6]). Correlation is an Open-Source software designed to analyze liquid structures and amorphous solids; the software is user-friendly, the modular design makes it easy to integrate in High-Throughput Computing (HTC) to process structures with a large number of constituents in a standardized fashion. Correlation is ready to be used in Windows,Linux and Mac. Currently, we support DMol3 (CAR), CASTEP (CELL), ONETEP (DAT)and VASP (POSCAR) structure files. The code can handle up to 25,000 atoms, so it can be used to analyze both classical and first-principles simulations. At the end, the output of every single correlation function is exported to the corresponding comma-separated value file (CSV), to further analyze the results.
description: 6 pages, 2 figures, JOSS
Thickness dependent tuning of the Berry curvature in a ferromagnetic Weyl semimetal
Creators: name: Zhang, Yao
name: Yin, Yuefeng
name: Dubuis, Guy
name: Butler, Tane
name: Medhekar, Nikhil V.
name: Granville, Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic Weyl semimetals with spontaneously broken time-reversal symmetry exhibit a large intrinsic anomalous Hall effect originating from the Berry curvature. To employ this large Hall current for room temperature topo-spintronics applications, it is necessary to fabricate these materials as thin or ultrathin films. Here, we experimentally demonstrate that Weyl semimetal Co2MnGa thin films (20-50 nm) show a very large anomalous Hall angle ~11.4% at low temperature and ~9.7% at room temperature, which can be ascribed to the nontrivial topology of the band structure with large intrinsic Berry curvature. However, the anomalous Hall angle decreases significantly with thicknesses below 20 nm, which band structure calculations confirm is due to the reduction of the majority spin contribution to the Berry curvature. Our results suggest that Co2MnGa is an excellent material to realize room temperature topo-spintronics applications, however the significant thickness dependence of the Berry curvature has important implications for thin film device design
INTELLECTUALIZATION OF TRANSPORT SERVICE OF THE METALLURGICAL ENTERPRISES (ИНТЕЛЛЕКТУАЛИЗАЦИЯ ТРАНСПОРТНОГО ОБСЛУЖИВАНИЯ МЕТАЛЛУРГИЧЕСКИХ ПРЕДПРИЯТИЙ)
Creators: name: Rakhmangulov, Aleksandr
name: Osintsev, Nikita
name: Kopylova, Olesya
name: Mishkurov, Pavel
Publisher: name: figshare
Year: 2021
Subjects: subject: 90599 Civil Engineering not elsewhere classified
subject: FOS: Civil engineering

description: The approach to formation and structure of intelligent transport systems at the metallurgical enterprises is suggested. The approach is based on the original combined analytical and simulation model of transport and technological systems (ТТS) which realizing a complex of transport and logistics methods of the organization and functioning railway ТТS. The intelligent transport system structure is focused on increasing of industry and transport interaction efficiency. It actually in the conditions of rail traffics structure complication and requirements to quality of freight traffic increasing.
Предложен подход к формированию и составу интеллектуальных транспортных систем на металлургических предприятиях. Подход основан на использовании оригинальной комбинированной аналитико-имитационной модели транспортно-технологической системы (ТТС), реализующей комплекс транспортно-логистических методов организации функционирования железнодорожных ТТС. Интеллектуальная транспортная система предлагаемого функционального состава ориентирована на повышение эффективности взаимодействия производства и транспорта в условиях усложнения структуры грузопотоков и возрастания требований к качеству грузовых перевозок.
Elicitation - switch-reference
Creators: name: Sampi Ríos, Celia
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with Celia Sampi Ríos. Topics covered include word order with complex nominals, attitude reports, switch-reference, and questions.
Semantic Segmentation of Histopathological Slides for the Classification of Cutaneous Lymphoma and Eczema
Creators: name: Scheurer, Jérémy
name: Ferrari, Claudio
name: Bom, Luis Berenguer Todo
name: Beer, Michaela
name: Kempf, Werner
name: Haug, Luis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Mycosis fungoides (MF) is a rare, potentially life threatening skin disease, which in early stages clinically and histologically strongly resembles Eczema, a very common and benign skin condition. In order to increase the survival rate, one needs to provide the appropriate treatment early on. To this end, one crucial step for specialists is the evaluation of histopathological slides (glass slides), or Whole Slide Images (WSI), of the patients' skin tissue. We introduce a deep learning aided diagnostics tool that brings a two-fold value to the decision process of pathologists. First, our algorithm accurately segments WSI into regions that are relevant for an accurate diagnosis, achieving a Mean-IoU of 69% and a Matthews Correlation score of 83% on a novel dataset. Additionally, we also show that our model is competitive with the state of the art on a reference dataset. Second, using the segmentation map and the original image, we are able to predict if a patient has MF or Eczema. We created two models that can be applied in different stages of the diagnostic pipeline, potentially eliminating life-threatening mistakes. The classification outcome is considerably more interpretable than using only the WSI as the input, since it is also based on the segmentation map. Our segmentation model, which we call EU-Net, extends a classical U-Net with an EfficientNet-B7 encoder which was pre-trained on the Imagenet dataset.
description: Submitted to https://link.springer.com/chapter/10.1007/978-3-030-52791-4_3
Two-subband quantum Hall effect in parabolic quantum wells
Creators: name: Ellenberger, C.
name: Simovic, B.
name: Leturcq, R.
name: Ihn, T.
name: Ulloa, S. E.
name: Ensslin, K.
name: Driscoll, D. C.
name: Gossard, A. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The low-temperature magnetoresistance of parabolic quantum wells displays pronounced minima between integer filling factors. Concomitantly the Hall effect exhibits overshoots and plateau-like features next to well-defined ordinary quantum Hall plateaus. These effects set in with the occupation of the second subband. We discuss our observations in the context of single-particle Landau fan charts of a two-subband system empirically extended by a density dependent subband separation and an enhanced spin-splitting g*.
description: 5 pages, submitted
The Formation of Ice Giants in a Packed Oligarchy: Instability and Aftermath
Creators: name: Ford, Eric B.
name: Chiang, Eugene
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: As many as 5 ice giants--Neptune-mass planets composed of 90% ice and rock and 10% hydrogen--are thought to form at heliocentric distances of 10-25 AU on closely packed orbits spaced ~5 Hill radii apart. Such oligarchies are ultimately unstable. Once the parent disk of planetesimals is sufficiently depleted, oligarchs perturb one another onto crossing orbits. We explore both the onset and the outcome of the instability through numerical integrations, including dynamical friction cooling of planets by a planetesimal disk whose properties are held fixed. To trigger instability and the ejection of the first ice giant in systems having an original surface density in oligarchs of Sigma ~ 1 g/cm^2, the disk surface density s must fall below 0.1 g/cm^2. Ejections are predominantly by Jupiter and occur within 10 Myr. To eject more than 1 oligarch requires s < 0.03 g/cm^2. Systems starting with up to 4 oligarchs in addition to Jupiter and Saturn can readily yield solar-system-like outcomes in which 2 surviving ice giants lie inside 30 AU and have their orbits circularized by dynamical friction. Our numerical simulations support the idea that planetary systems begin in more crowded and compact configurations, like those of shear-dominated oligarchies. In contrast to previous studies, we identify s < 0.1 Sigma as the regime relevant for understanding the evolution of the outer solar system, and we encourage future studies to concentrate on this regime while relaxing our assumption of a fixed planetesimal disk.
description: Accepted to ApJ Jan 27. Incorporates comments from the referee and community at large. 15 pages, 14 figures, including 7 color
Shadowing for families of endomorphisms of generalized group shifts
Creators: name: Phung, Xuan Kien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Let $G$ be a countable monoid and let $A$ be an Artinian group (resp. an Artinian module). Let $Σ\subset A^G$ be a closed subshift which is also a subgroup (resp. a submodule) of $A^G$. Suppose that $Γ$ is a finitely generated monoid consisting of pairwise commuting cellular automata $Σ\to Σ$ that are also homomorphisms of groups (resp. homomorphisms of modules) with monoid binary operation given by composition of maps. We show that the valuation action of $Γ$ on $Σ$ satisfies a natural intrinsic shadowing property. Generalizations are also established for families of endomorphisms of admissible group subshifts.
description: arXiv admin note: text overlap with arXiv:2010.04035
A new algorithm for the $^K$DMDGP subclass of Distance Geometry Problems
Creators: name: Goncalves, Douglas S.
name: Lavor, Carlile
name: Liberti, Leo
name: Souza, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The fundamental inverse problem in distance geometry is the one of finding positions from inter-point distances. The Discretizable Molecular Distance Geometry Problem (DMDGP) is a subclass of the Distance Geometry Problem (DGP) whose search space can be discretized and represented by a binary tree, which can be explored by a Branch-and-Prune (BP) algorithm. It turns out that this combinatorial search space possesses many interesting symmetry properties that were studied in the last decade. In this paper, we present a new algorithm for this subclass of the DGP, which exploits DMDGP symmetries more effectively than its predecessors. Computational results show that the speedup, with respect to the classic BP algorithm, is considerable for sparse DMDGP instances related to protein conformation.
description: This is a full version of the extended abstract accepted at CTW2020