cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An extremely hot white dwarf with a rapidly rotating K-type subgiant companion: UCAC2 46706450
Creators: name: Werner, Klaus
name: Reindl, Nicole
name: Löbling, Lisa
name: Pelisoli, Ingrid
name: Schaffenroth, Veronika
name: Rebassa-Mansergas, Alberto
name: Irawati, Puji
name: Ren, Juanjuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: UCAC2 46706450 is a late-type star with an ultraviolet (UV) excess. It was considered a candidate to establish a sample of FGK stars with white dwarf (WD) companions that can be used to test binary evolution models. To verify the WD nature of the companion, UV spectroscopy was performed by Parsons et al. (2016). By a detailed model-atmosphere analysis we show that the UV source is an extremely hot WD with effective temperature $T_\mathrm{eff}$ = $105\,000\pm5000$ K, mass $M/M_\odot = 0.54\pm0.02$, radius $R/R_\odot = 0.040^{+0.005}_{-0.004}$, and luminosity $L/L_\odot= 176^{+55}_{-49}$, i.e., the compact object is just about to enter the WD cooling sequence. Investigating spectra of the cool star ($T_\mathrm{eff}$ = $4945\pm250$ K) we found that it is a K-type subgiant with $M/M_\odot = 0.8-2.4$, $R/R_\odot = 5.9^{+0.7}_{-0.5}$, and $L/L_\odot= 19^{+5}_{-5}$, that is rapidly rotating with $v \sin(i)=81$ km s$^{-1}$. Optical light curves reveal a period of two days and an o-band peak-to-peak amplitude of 0.06 mag. We suggest, that it is caused by stellar rotation in connection with star spots. With the radius we infer an extremely high rotational velocity of $v_{\mathrm{rot}}=151^{+18}_{-13}$ km s$^{-1}$, thus marking the star as one of the most rapidly rotating subgiants known. This explains chromospheric activity observed by H$α$ emission and emission-line cores in CaII H and K as well as NUV flux excess. From equal and constant radial velocities of the WD and the K subgiant as well as from a fit to the spectral energy distribution we infer that they form a physical, wide though unresolved binary system. Both components exhibit similar metal abundances and show iron-group elements with slightly oversolar (up to 0.6 dex) abundance, meaning that atomic diffusion in the WD atmosphere is not yet active due to a residual, weak radiation-driven wind. (abridged)
description: 13 pages, accepted for publication in A&A
Chemical Homogeneity in Collinder 261 and Implications for Chemical Tagging
Creators: name: De Silva, G. M.
name: Freeman, K. C.
name: Asplund, M.
name: Bland-Hawthorn, J.
name: Bessell, M. S.
name: Collet, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents abundances for 12 red giants of the old open cluster Collinder 261 based on spectra from VLT/UVES. Abundances were derived for Na, Mg, Si, Ca, Mn, Fe, Ni, Zr and Ba. We find the cluster has a solar-level metallicity of [Fe/H] = -0.03 dex. However some alpha elements were found to be enhanced. The star-to-star scatter was consistent with the expected measurement uncertainty for all elements. The observed rms scatter is as follows: Na = 0.07, Mg = 0.05, Si = 0.06, Ca = 0.05, Mn = 0.03, Fe = 0.02, Ni = 0.04, Zr = 0.12, and Ba = 0.03 dex. The intrinsic scatter was estimated to be less than 0.05 dex. Such high levels of homogeneity indicate that chemical information remains preserved in this old open cluster. We use the chemical homogeneity we have now established in Cr 261, Hyades and the HR1614 moving group to examine the uniqueness of the individual cluster abundance patterns, ie. chemical signatures. We demonstrate that the three studied clusters have unique chemical signatures, and discuss how other such signatures may be searched for in the future. Our findings support the prospect of chemically tagging disk stars to common formation sites in order to unravel the dissipative history of the Galactic disk.
description: 26 pages, 15 figures, accepted by AJ. Uses emulateapj.cls
Symmetries of Thirring models on 3d lattices
Creators: name: Wipf, Andreas W.
name: Lenz, Julian J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review some recent developments about strongly interacting relativistic Fermi theories in three spacetime dimensions. These models realize the asymptotic safety scenario and are used to describe the low-energy properties of Dirac materials in condensed matter physics. We begin with a general discussion of the symmetries of multi-flavor Fermi systems in arbitrary dimensions. Then we review known results about the critical flavor number $N_\mathrm{crit}$ of Thirring models in three dimensions. Only models with flavor number below $N_\mathrm{crit}$ show a phase transition from a symmetry-broken strong-coupling phase to a symmetric weak-coupling phase. Recent simulations with chiral fermions show that $N_\mathrm{crit}$ is smaller than previously extracted with various non-perturbative methods. Our simulations with chiral SLAC fermions reveal that for four-component flavors $N_\mathrm{crit}=0.80(4)$. This means that all reducible Thirring models with $\Nr=1,2,3,\dots$ show no phase transition with order parameter. Instead we discover footprints of phase transitions without order parameter. These new transitions are probably smooth and could be used to relate the lattice Thirring models to Thirring models in the continuum. For a single irreducible flavor, we provide previously unpublished values for the critical couplings and critical exponents.
description: 19 pages, 9 figures, Prepared for the 2021 Special Issue of the journal Symmetry on New Applications of Symmetry in Lattice Field Theory. In this replacement we corrected some errors (concerning the SLAC lattice-derivative), some misprints (mixup of numbers) and emphasized the link to random matrix theory. In addition we deleted some obsolete references and added relevant new ones
Elicitation - possessives
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 questions, possessives, reported speech, word order involving complex nominals, and scope.
Small mammal taphonomy and palaeoecological Holocene interpretations in the Andean piedmont (southern Mendoza province, Argentina)
Creators: name: García-Morato, Sara
name: Marin-Monfort, Dores
name: Fernández-Jalvo, Yolanda
name: Neme, Gustavo A.
name: Fernández, Fernando J.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Plant Biology
subject: Computational Biology

description: Salamanca cave (southern Mendoza province) is in the Andean piedmont, a transitional area in which small mammal communities may have been affected by climatic pulses. The site yields three archaeological components covering from the early to the late-Holocene with a mid-Holocene occupational and sedimentological hiatus. Taphonomic analyses of the small mammal assemblages indicate that barn owls (Tyto furcata) were the main accumulation agent, ensuring accurate palaeoecological inferences. Taxonomic composition of the site shows the dominance of Eligmodontia sp. followed by Thylamys pallidior, Phyllotis cf. P. vaccarum-pehuenche and Ctenomys sp., all of them indicative of shrubland and bare ground habitats. Palaeoclimatic inferences indicate a trend to warmer temperatures from the lower to the upper component with a slight increase in humidity in the middle component. This humid pulse is also supported by post-depositional taphonomic processes. The taxonomic structure and abundance of small mammals do not show deep changes amongst the three archaeological components, following the general trend observed in other archaeological sites from the Pampean region, southern Mendoza province and the arid and semi-arid zones of north Patagonia, in which changes in the taxonomic composition of small mammal communities are almost absent since Pleistocene–Holocene transition to late Holocene.
High cell density cultivation for docosahexanoic acid production of Schizochytrium sp. BCC 25505
Creators: name: Prathumpai, Wai
name: Nuntida Sahach-Atiraklap
name: Kanokarn Kocharin
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: docosahexanoic acid,Schizochytriumsp,Plackett-Burman design,Central composite design,Single cell oil

description: 2, 20, KKU Research Journal
Verification and Reachability Analysis of Fractional-Order Differential Equations Using Interval Analysis
Creators: name: Rauh, Andreas
name: Kersten, Julia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: B.2.2; G.1.0; G.1.7; G.1.10

description: Interval approaches for the reachability analysis of initial value problems for sets of classical ordinary differential equations have been investigated and implemented by many researchers during the last decades. However, there exist numerous applications in computational science and engineering, where continuous-time system dynamics cannot be described adequately by integer-order differential equations. Especially in cases in which long-term memory effects are observed, fractional-order system representations are promising to describe the dynamics, on the one hand, with sufficient accuracy and, on the other hand, to limit the number of required state variables and parameters to a reasonable amount. Real-life applications for such fractional-order models can, among others, be found in the field of electrochemistry, where methods for impedance spectroscopy are typically used to identify fractional-order models for the charging/discharging behavior of batteries or for the dynamic relation between voltage and current in fuel cell systems if operated in a non-stationary state. This paper aims at presenting an iterative method for reachability analysis of fractional-order systems that is based on an interval arithmetic extension of Mittag-Leffler functions. An illustrating example, inspired by a low-order model of battery systems concludes this contribution.
description: In Proceedings SNR 2020, arXiv:2101.05256
Ammonoids of the Oxynotum Zone and Raricostatum Zone (Densinodulum Subzone) of Sinemurian, Lower Jurassic, in the Asturian and Lusitanian basins
Creators: name: Vitón, Íñigo
name: Comas-Rengifo, María J.
name: Duarte, Luís V.
name: Goy, Antonio
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: This research is focused on the ammonoids of Oxynotum Zone and Raricostatum Zone (Densinodulum Subzone) from Asturian (Spain) and Lusitanian (Portugal) basins. They come from expanded sections from where 216 specimens have been collected. These have been classified in eight genera and 15 species that belong to families Echioceratidae, Oxynoticeratidae and Eoderoceratidae. Most of the ammonoids are typical of the Northwest European Province. Echioceratidae is the most frequent in the Asturian Basin, whereas Oxynoticeratidae is the predominant in the Lusitanian Basin. Eoderoceratidae specimens are scarcer, and they are registered only between the middle part of Oxynotum Subzone and the lower part of Densinodulum Subzone. A new species is proposed for the upper part of Oxynotum Subzone of the Lusitanian Basin, Plesechioceras rochai sp. nov., which is relatively frequent. As well, also in Portugal, Cheltonia sp. is registered in Densinodulum Subzone, which is a form different from Cheltonia accipitris. This provides new evidence to support the hypothesis of the relation micro-macroconch between the genera Oxynoticeras (M) and Cheltonia (m). Remarkable differences in the studied area are the presence of Paroxynoticeras salisburgense and Plesechioceras cf. delicatum in the Asturias Basin, and Crucilobiceras densinodulum, associated to Oxynoticeras lymense, in the Lusitanian Basin. https://zoobank.org/NomenclaturalActs/FEF11B83-03CA-4BD6-BB15-F3E9926B7C4F
Transitions between Vortex Rings and Monopole-Antimonopole Chains
Creators: name: Kunz, Jutta
name: Neemann, Ulrike
name: Shnir, Yasha
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In monopole-antimonopole chain solutions of SU(2) Yang-Mills-Higgs theory the Higgs field vanishes at m isolated points along the symmetry axis, whereas in vortex ring solutions the Higgs field vanishes along one or more rings, centered around the symmetry axis. We investigate how these static axially symmetric solutions depend on the strength of the Higgs selfcoupling λ. We show, that as the coupling is getting large, new branches of solutions appear at critical values of λ. Exhibiting a different node structure, these give rise to transitions between vortex rings and monopole-antimonopole chains.
description: 14 pages, 18 figures, published in plb
Antioxidant and Antibacterial Activities of Indian Marsh Fleabane (Pluchea indica (L.) Less)
Creators: name: Rawinipa Srimoon
name: Suchanya Ngiewthaisong
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: Pluchea indica (L.) Less,Antioxidant,Antibacterial activities

description: 2, 20, KKU Research Journal
Reflected Light Observations of the Galilean Satellites from Cassini: a testbed for cold terrestrial exoplanets
Creators: name: Mayorga, L. C.
name: Charbonneau, David
name: Thorngren, D. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: For terrestrial exoplanets with thin atmospheres or no atmospheres, the surface contributes light to the reflected light signal of the planet. Measurement of the variety of disk-integrated brightnesses of bodies in the Solar System and the variation with illumination and wavelength is essential for both planning imaging observations of directly imaged exoplanets and interpreting the eventual datasets. Here we measure the change in brightness of the Galilean satellites as a function of planetocentric longitude, illumination phase angle, and wavelength. The data span a range of wavelengths from 400-950nm and predominantly phase angles from 0-25 degrees, with some constraining observations near 60-140 degrees. Despite the similarity in size and density between the moons, surface inhomogeneities result in significant changes in the disk-integrated reflectivity with planetocentric longitude and phase angle. We find that these changes are sufficient to determine the rotational periods of the moon. We also find that at low phase angles the surface can produce reflectivity variations of 8-36% and the limited high phase angle observations suggest variations will have proportionally larger amplitudes at higher phase angles. Additionally, all the Galilean satellites are darker than predicted by an idealized Lambertian model at the phases most likely to be observed by direct-imaging missions. If Earth-size exoplanets have surfaces similar to that of the Galilean moons, we find that future direct imaging missions will need to achieve precisions of less than 0.1\,ppb. Should the necessary precision be achieved, future exoplanet observations could exploit similar observation schemes to deduce surface variations, determine rotation periods, and potentially infer surface composition.
description: 21 pages, 7 tables, 15 figures, including machine-readable table, accepted to AJ
Tensor Self Energy in a Vector-Tensor Model
Creators: name: Buchel, A.
name: Chishtie, F. A.
name: Gagne-Portelance, M.
name: Homayouni, S.
name: McKeon, D. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The tensor self energy is computed at one loop order in a model in which a vector and tensor interact in a way that eliminates all tensor degrees of freedom. Divergencies arise which cannot be eliminated without introducing a kinetic term for the tensor field which does not appear in the classical action. We comment on a possible resolution of this puzzle.
description: 7 pages, LaTeX, additional analysis and comments
Synthesis of high-entropy-alloy-type superconductors (Fe,Co,Ni,Rh,Ir)Zr2 with tunable transition temperature
Creators: name: Kasem, Md. Riad
name: Yamashita, Aichi
name: Goto, Yosuke
name: Matsuda, Tatsuma D.
name: Mizuguchi, Yoshikazu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the synthesis and superconductivity of high-entropy-alloy-type (HEA-type) compounds TrZr2 (Tr = Fe, Co, Ni, Rh, Ir), in which the Tr site satisfies the criterion of HEA. Polycrystalline samples of HEA-type TrZr2 with four different compositions at the Tr site were synthesized by arc melting method. The phase purity and crystal structure were examined by Rietveld refinement of X-ray diffraction profile. It has been confirmed that the obtained samples have a CuAl2-type tetragonal structure. From analyses of elemental composition and mixing entropy at the Tr site, the HEA state for the Tr site was confirmed. The physical properties of obtained samples were characterized by electrical resistivity and magnetization measurements. All the samples show bulk superconductivity with various transition temperature (Tc). The Tc varied according to the compositions and showed correlations with the lattice constant c and Tr-Zr bond lengths. Introduction of an HEA site in TrZr2 is useful to achieve systematic tuning of Tc with a wide temperature range, which would be a merit for superconductivity application.
description: 16 pages, 5 figures, SI
Thermal inactivation kinetics of lysozyme and preservative effect beer
Creators: name: Makki, Farid
Publisher: name: University of British Columbia
Year: 2009

description: Thermal stability of lysozyme in aqueous buffer solutions was studied at different temperatures (73-100°C), pH values (4.2-9.0) and levels of sucrose (0, 5%, 15%) and sodium chloride (0, 0.1M, 1M). The results, fitted to a first order model and expressed in terms of decimal reduction time (D), inactivation rate constant (k), decimal reduction temperature (z) and Arrhenius activation energy (Ea indicated that lysozyme was most stable at pH 5.2, and thermal stability decreased sharply as the pH increased to 9.0. A regression equation for prediction of k as a function of temperature and pH was derived, with the best fit obtained for the model in the pH range of 5.2-7.2 (adjusted multiple r2=0.975). At pH values of 7.2 and 9.0, sodium chloride had a clear stabilizing effect against heat inactivation of lysozyme. Sucrose stabilized lysozyme against heat inactivation at 75°C but not at 91°C. Results of the study of the thermal inactivation kinetics of lysozyme proved to be practical and useful for prediction of residual lysozyme activity in the pH and temperature range studied. Thermal inactivation kinetics of lysozyme and its potential to prevent or delay microbial growth were also investigated in beer. Lysozyme at concentrations of 10 and 50 ppm appeared to delay growth of the spoilage bacteria L. brevis and P. damnosus in beer, but did not prevent growth of the bacteria.
Core Transitions in the Breakup of Exotic Nuclei
Creators: name: Summers, N. C.
name: Nunes, F. M.
name: Thompson, I. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: An interesting physical process has been unveiled: dynamical core excitation during a breakup reaction of loosely bound $core+N$ systems. These reactions are typically used to extract spectroscopic information and/or astrophysical information. A new method, the eXtended Continuum Discretized Coupled Channel (XCDCC) method, was developed to incorporate, in a consistent way and to all orders, core excitation in the bound and scattering states of the projectile, as well as dynamical excitation of the core as it interacts with the target. The model predicts cross sections to specific states of the core. It is applied to the breakup of $^{11}$Be on $^9$Be at 60 MeV/u, and the calculated cross sections are in improved agreement with the data. The distribution of the cross section amongst the various core states is shown to depend on the reaction model used, and not simply on the ground state spectroscopic factors.
description: 5 pages, 1 figure, accepted Phys. Rev. C
New Massive Contact Twin Binary in a Radio-quiet HII Region Associated with the M17 Complex
Creators: name: Yin, Jia
name: Chen, Zhiwei
name: Yao, Yongqiang
name: Chen, Jian
name: Li, Bin
name: Jiang, Zhibo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Early-B stars may create an HII region that appears as radio-quiet. We report the identification of new early-B stars associated with the radio-quiet HII region G014.645--00.606 in the M17 complex. The ratio-quiet HII region G014.645--00.606 is adjacent to three radio-quiet WISE HII region candidates. The ionizing sources of the radio-quiet HII regions are expected to later than B1V, given the sensitivity about 1-2 mJy of the MAGPIS 20 cm survey. The stars were first selected if their parallaxes of GAIA EDR3 match that of the 22 GHz H$_2$O maser source within the same region. We used the color-magnitude diagram made from the ZTF photometric catalog to select the candidates for massive stars because the intrinsic $g-r$ colors of massive stars change little from B-type to O-type stars. Five stars lie in the areas of the color-magnitude diagram where either reddened massive stars or evolved post-main sequence stars of lower masses are commonly found. Three of the five stars, sources 1, 2, and 3, are located at the cavities of the three IR bubbles, and extended H$α$ emission is detected around the three IR bubbles. We suggest that sources 1, 2, and 3 are candidates for early-B stars associated with the radio-quiet region G014.645--00.606. Particularly, source 1 is an EW type eclipsing binary with a short period of 0.825 day, while source 2 is an EA type eclipsing binary with a short period of 0.919 day. The physical parameters of the two binary systems have been derived through the PHOEBE model. Source 1 is a twin binary of two stars with T~23,500 K, and source 2 contains a hotter component (T~20,100 K) and a cooler one (T~15,500 K). The $O-C$ values of source 1 show a trend of decline, implying that the period of the source is deceasing. Source 1 is likely a contacting early-B twin binary, for which mass transfer might cause its orbit to shrink.
description: published by RAA in 2022 March 10
Analysis of E-commerce Ranking Signals via Signal Temporal Logic
Creators: name: Dreossi, Tommaso
name: Ballardin, Giorgio
name: Gupta, Parth
name: Bakus, Jan
name: Lin, Yu-Hsiang
name: Salaka, Vamsi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The timed position of documents retrieved by learning to rank models can be seen as signals. Signals carry useful information such as drop or rise of documents over time or user behaviors. In this work, we propose to use the logic formalism called Signal Temporal Logic (STL) to characterize document behaviors in ranking accordingly to the specified formulas. Our analysis shows that interesting document behaviors can be easily formalized and detected thanks to STL formulas. We validate our idea on a dataset of 100K product signals. Through the presented framework, we uncover interesting patterns, such as cold start, warm start, spikes, and inspect how they affect our learning to ranks models.
description: In Proceedings SNR 2020, arXiv:2101.05256
Diabetes-Induced Changes of the Rat ERG in Relation to Hyperglycemia and Acidosis
Creators: name: Dmitriev, Andrey V.
name: Dmitriev, Alexander A.
name: Linsenmeier, Robert A
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: To understand the mechanism of changes in the c-wave of the electroretinogram (ERG) in diabetic rats, and to explore how glucose manipulations affect the c-wave. Vitreal ERGs were recorded in control and diabetic Long-Evans rats, 3–60 weeks after IP vehicle or streptozotocin. A few experiments were performed on Brown Norway rats. Voltage responses to current pulses were used to measure the transepithelial resistance of the retinal pigment epithelium (RPE). During development of diabetes the b-wave amplitude progressively decreased to about half of the initial amplitude after a year. In contrast, the c-wave was strongly affected from the very beginning (3 weeks) of diabetes. In control rats, the c-wave was cornea-positive at lower illuminations but was cornea-negative at higher (photopic) illumination. In diabetics, the whole amplitude-intensity curve was shifted toward negativity. The magnitude of this shift was markedly affected by acute glucose manipulations in diabetics but not in controls. Increased blood glucose made the c-wave more negative, and decreased blood glucose with insulin had the opposite effect. Experimentally induced acidification of the retina had a small effect that was different from diabetes, shifting the c-wave toward positivity, slightly in controls and more noticeably in diabetics. One reason for the significant negativity of the diabetic ERG was a decrease of the cornea-positive response of the RPE due to a decrease of the transepithelial resistance. The ERG c-wave is more negative in diabetics than in control animals, and is far more sensitive to changes in blood glucose. The increased negativity is largely if not entirely due to changes in the transepithelial resistance of the RPE, an electrical analog of the breakdown of the blood-retinal barrier observed in other studies. The sensitivity of the c-wave to glucose in diabetics may also be due to changes in transepithelial resistance.
Nonperturbative and higher order perturbative effects in deep inelastic $ν_τ/\barν_τ-$nucleon scattering
Creators: name: Ansari, V.
name: Athar, M. Sajjad
name: Haider, H.
name: Singh, S. K.
name: Zaidi, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effect of nonperturbative and higher order perturbative corrections to all the free nucleon structure functions ($F_{iN}(x,Q^2); i=1-5$) in the DIS of $ν_τ/{\barν}_τ$ on nucleon is studied. The target mass correction (TMC) and higher twist (HT) effects are incorporated following the works of Kretzer et al. and Dasgupta et al., respectively. The evaluation of the nucleon structure functions has been performed by using the MMHT 2014 parameterization of the parton distribution functions (PDFs). The calculations have been performed at the next-to-leading(NLO) order. These nucleon structure functions (SF) are used to calculate the DIS cross section by further including the kinematical corrections due to $τ$-lepton mass. Due to the inclusion of lepton mass two additional structure functions $F_{4N}(x,Q^2)$ and $F_{5N}(x,Q^2)$ become non-negligible. The results for the nucleon structure functions, differential and total scattering cross sections are presented. The various effects considered in this work are effective in the different regions of $x$ and $Q^2$, and quite important in the energy region of $E_{ν_τ/{\barν}_τ} < 15$ GeV. A comparative study of our results with the existing results in the literature for the cross sections is made in the energy region of interest for the DUNE, SHiP, DsTau and HyperK experiments proposed to be done in the near future.
description: 16 pages, 8 figures, 1 table
Effect of the four-sheet Fermi surface on magnetoresistivity of MgB2
Creators: name: Pallecchi, I.
name: Monni, M.
name: Ferdeghini, C.
name: Ferrando, V.
name: Putti, M.
name: Tarantini, C.
name: D'Agliano, E. Galleani
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent experimental data of anisotropic magnetoresistivity measured in MgB2 films have shown an intriguing behaviour: the angular dependence of magnetoresistivity changes dramatically with temperature and disorder. In order to explain such phenomenology, in this work, we extend our previous analyses on multiband transverse magnetoresistivity in magnesium diboride, by calculating its analytic expression, assuming a constant anisotropic Fermi surface mass tensor. The calculation is done for arbitrary orientation of the magnetic field with respect to the crystalline axes and for the current density either perpendicular or parallel to the magnetic field. This approach allows to extract quite univocally the values of the scattering times in the s- and p- bands by fitting experimental data with a simple analytic expression. We also extend the analysis to the magnetoresistivity of polycrystalline samples, with an arbitrary angle between the current density and the magnetic field, taking into account the anisotropy of each randomly oriented grain. Thereby, we propose magnetoresistivity as a very powerful characterization tool to explore the effect of disorder by irradiation or selective doping as well as of phonon scattering in each one of the two types of bands, in single crystals and polycrystalline samples, which is a crucial issue in the study of magnesium diboride.
description: 25 pages, 4 figures. in press on The European Physical Journal B
Optically thin circumstellar medium in $β$ Lyr A system
Creators: name: Brož, M.
name: Mourard, D.
name: Budaj, J.
name: Harmanec, P.
name: Schmitt, H.
name: Tallon-Bosc, I.
name: Bonneau, D.
name: Božić, H.
name: Gies, D.
name: Šlechta, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: beta Lyr A is a complex binary system with an extensive observational dataset: light curves (from FUV to FIR), interferometric squared visibility, closure phase, triple product measurements, spectral-energy distribution (SED), high-resolution spectroscopy, differential visibility amplitude, and also differential phase. In particular, we use spectra from Ondrejov 2m telescope from 2013 to 2015, to measure the emission in Halpha, HeI, SiII, NeI, or CII lines, and differential interferometry by CHARA/VEGA from the 2013 campaign to measure wavelength-dependent sizes across Halpha and HeI 6678. This allows us to constrain not only optically thick objects (primary, secondary, accretion disk), but also optically thin objects (disk atmosphere, jets, shell). We extended our modelling tool Pyshellspec (based on Shellspec; a 1D LTE radiative transfer code) to include all new observables, to compute differential visibilities/phases, to perform a Doppler tomography, and to determine a joint chi^2 metric. After an optimisation of 38 free parameters, we derive a robust model of the beta Lyr A system. According to the model, the emission is formed in an extended atmosphere of the disk, two perpendicular jets expanding at ~700 km s^-1, and a symmetric shell with the radius ~70 R_S. The spectroscopy indicates a low abundance of carbon, 10^-2 of the solar value. We also quantify systematic differences between datasets and discuss alternative models, with higher resolution, additional asymmetries, or He-rich abundance.
description: 19 pages, 31 figures
Elicitation - word order and scope
Creators: name: Soria Pérez, 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 Soria Pérez. Topics covered include word order with switch-reference clauses, scope, binding, word order with complex nominals, and word order with relative clauses.
disnht: modeling X-ray absorption from distributed column densities
Creators: name: Locatelli, Nicola
name: Ponti, Gabriele
name: Bianchi, Stefano
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Collecting and analysing X-ray photons over either spatial or temporal scales encompassing varying optical depth values requires knowledge about the optical depth distribution. In the case of sufficiently broad optical depth distribution, assuming a single column density value leads to a misleading interpretation of the source emission properties, nominally its spectral model. We present a model description for the interstellar medium absorption in X-ray spectra at moderate energy resolution, extracted over spatial or temporal regions encompassing a set of independent column densities. The absorption model (named disnht) approximates the distribution with a lognormal one and is presented in table format. The solution table and source code are made available and can be further generalized or tailored for arbitrary optical depth distributions encompassed by the extraction region. The disnht absorption model presented and its generalized solution are expected to be relevant for present and upcoming large angular scale analyses of diffuse X-ray emission, such as the ones from the extended ROentgen Survey with an Imaging Telescope Array (eROSITA) and the future Athena missions.
description: accepted for publication in Astronomy & Astrophysics; 6 pages, 4 figures, 1 table; additional material can be found at http://www.brera.inaf.it/hotmilk/models.html
A coordinate-dependent superspace deformation from string theory
Creators: name: Aldrovandi, L. G.
name: Schaposnik, F. A.
name: Silva, G. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Starting from a type II superstring model defined on $R^{2,2}\times CY_6$ in a linear graviphoton background, we derive a coordinate dependent $C$-deformed ${\cal N}=1$, $d=2+2$ superspace. The chiral fermionic coordinates $θ$ satisfy a Clifford algebra, while the other coordinate algebra remains unchanged. We find a linear relation between the graviphoton field strength and the deformation parameter. The null coordinate dependence of the graviphoton background allows to extend the results to all orders in $α'$.
description: 14 pages, reference added, accepted for publication in JHEP
Combined Intuition and Rationality Increases Software Feature Novelty for Female Software Designers
Creators: name: Pretorius, Carianne
name: Razavian, Maryam
name: Eling, Katrin
name: Langerak, Fred
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: D.2.14

description: Overcoming society's complex problems requires novel solutions. Applying different cognitive styles can promote novelty when designing software aimed at these problems. Through an experiment with 80 software design practitioners, we found that female practitioners who had a preference for more than one cognitive style (intuition and rationality) produced the most novel software features of all participants.
description: IEEE Software
Remarks Concerning the Study of Four-Jet Events from Hadronic Decays of the Z0
Creators: name: Jeremie, H.
name: Leblanc, P.
name: Lefebvre, E.
name: Davignon, D.
name: Karapetian;, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The angular correlations of four-jet events from hadronic decays of the Z0 have been studied in the past mainly to extract from them the fundamental constants of quantum chromodynamics called colour factors. Previous studies have used all the available phase-space in order to maximize statistics. In this note we want to point out the possibility that significant differences between experiment and theory in restricted regions of phase-space might have escaped detection. Such differences could be a harbinger of the existence of new particles. Some preliminary results are presented.
description: 9 pages, 3 figures
Optical frequency ratio of a ${}^{171}\mathrm{Yb}^+$ single-ion clock and a ${}^{87}\mathrm{Sr}$ lattice clock
Creators: name: Dörscher, Sören
name: Huntemann, Nils
name: Schwarz, Roman
name: Lange, Richard
name: Benkler, Erik
name: Lipphardt, Burghard
name: Sterr, Uwe
name: Peik, Ekkehard
name: Lisdat, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report direct measurements of the frequency ratio of the 642 THz ${}^2S_{1/2} (F=0)$--${}^2F_{7/2} (F=3)$ electric octupole transition in ${}^{171}\mathrm{Yb}^+$ and the 429 THz ${}^1S_0$--${}^3P_0$ transition in ${}^{87}\mathrm{Sr}$. A series of 107 measurements has been performed at the Physikalisch-Technische Bundesanstalt between December 2012 and October 2019. Long-term variations of the ratio are larger than expected from the individual measurement uncertainties of few $10^{-17}$. The cause of these variations remains unknown. Even taking these into account, we find a fractional uncertainty of the frequency ratio of $2.5 \times 10^{-17}$, which improves upon previous knowledge by one order of magnitude. The average frequency ratio is $ν_{\mathrm{Yb}^+} / ν_{\mathrm{Sr}} = 1.495\,991\,618\,544\,900\,537(38)$. This represents one of the most accurate measurements between two different atomic species to date.
description: 9 pages, 4 figures, 1 table
A Very Simple Algorithm of Sequential IQ Imbalance and Carrier Frequency Offset Compensation in Coherent Optical OFDM
Creators: name: Kidsanapong Puntsri
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: IQ imbalance,frequency offset,Coherent optical-OFDM,Optical communication systems

description: 2, 20, KKU Research Journal
Infrastructure Policy Trends: Critical Mineral Mining in Canada
Creators: name: Munzur, Alaz
Publisher: name: The School of Public Policy Publications
Year: 2021

description: Critical minerals are commodities with few effective substitutes like nickel, uranium, copper and cobalt. Their “criticality” depends on factors like market volatility, supply risk, environmental impact and priorities regarding economic development and national security. It is an evolving term and a mineral commodity considered critical now may be less so in the future. These minerals are essential for a functioning economy since they are vital inputs in almost all industries from defence to telecommunications, manufacturing and healthcare, and in clean technologies like electric vehicle batteries and motors, solar panels and nuclear reactors. Historically, China has dominated the marketplace as the major supplier, distributor and processor of critical minerals. This over-reliance on a single supplier has placed countries importing critical minerals at a distinct disadvantage in terms of establishing secure access to a vital group of inputs. However, with the ever-rising global demand for reliable suppliers with high environmental, transparency and anti-corruption standards, Canada is well positioned to become a preferred source of critical minerals for its key trading partners.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Toric Intraocular Lens versus Peripheral Corneal Relaxing Incisions for Astigmatism between 0.75 and 2.5 Diopters: 5-Years Outcomes
Creators: name: Mukhija, Ritika
name: Fonseca, Aneesha
name: Borkum, Steven
name: Frattaroli, Paul
name: Barbon, Emma
name: Nanavaty, Mayank A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: To compare 5-year outcomes of toric intraocular lens (tIOL) or peripheral corneal relaxing incision (PCRI) for correction of keratometric astigmatism (KA) between 0.75 and 2.5 diopters (D). Setting: University Hospital. Design: Randomized clinical trial. Eighty eyes (80 participants) received either tIOL or PCRI. Patients were assessed preoperatively, 1-month, 1, and 5 years. Primary outcomes were uncorrected (UDVA) and best-corrected distance logMAR visual acuity (CDVA). Secondary outcomes were a manifest refractive sphere, refractive astigmatism (Ra), spherical equivalent (SEQ), KA & mean keratometry (KM), and Quality-of-Life Impact of Refractive Correction (QIRC) scores. There was no difference between the two groups in UDVA, CDVA, refractive sphere, KM, RA, and SEQ. KA reduced after 1 month in the PCRI group and remained stable until 5 years. From 1 to 5 years, the number of eyes with distance emmetropia (within ±0.13D) changed from 59% (20/34 eyes) to 32% (6/19 eyes) for tIOLs and from 43% (15/36 eyes) to 20% (4/21 eyes) for PCRIs with 32% (6/19 eyes) and 20% (4/21 eyes) showing >0.5D change in SEQ at 5-years respectively. Compared to 1-year, Ra significantly increased at 5 years in both groups with no difference between the groups. Mean overall QIRC scores were not different between the groups (tIOL: 49.88 ± 7.47; PCRI: 52.09 ± 7.02; p = .18). Although there was no difference between the overall visual and vision-related quality of life outcomes between tIOLs and PCRIs, an increase in refractive astigmatism and reduction in distance emmetropia with time was noted in both groups.
The role of hydrogen in decarbonizing Alberta’s electricity system
Creators: name: Shaffer, Blake
name: Bataille, Chris
Publisher: name: The School of Public Policy Publications
Year: 2021

description: This paper explores the role that hydrogen can play in helping Alberta decarbonize its electricity system. Alberta has an abundance of natural gas resources that can be converted to hydrogen fuel and further used to generate electricity either through a turbine or through a fuel cell. Since Alberta has a significant portion of its current electricity needs supplied by combustion and steam turbines, such turbines can be repurposed to use hydrogen fuels and therefore reduce the amount of stranded assets as the province moves towards lower emissions in the electricity industry. Using hydrogen in the electricity industry can also complement a higher percentage of variable renewable energy resources, like wind and solar, by absorbing excess generation via electrolysis and providing much needed reliability as a peaking product. The carbon price and associated carbon policy in Alberta appears to be a key driver incentivizing hydrogen use in the electricity industry. Our model comparing the marginal costs of natural gas versus hydrogen for electricity production concludes that with the current carbon policy in Alberta and a rising carbon price to $170 per tonne CO2e in 2030, hydrogen has the potential to compete with natural gas as a dominant, "on-demand" power source.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Improvement of Eri Silkworm (Samia ricini D.) Tolerant to High Temperature and Low Humidity Conditions by Continuously Regime
Creators: name: Duanpen Wongsorn
name: Sivilai Sirimungkararatp
name: Weerasak Saksirirat
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: eri silkworm,tolerance,high temperature,low humidity,Samia ricini

description: 2, 20, KKU Research Journal
Effect of Temperatures on Growth, Yields and Heat Shock Protein Expression of Eri Silkworm (Samia ricini D.)
Creators: name: Duanpen Wongsorn
name: Sivilai Sirimungkararatp
name: Weerasak Saksirirat
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: eri silkworm,high temperature,yield,heat shock protein,effect

description: 2, 20, KKU Research Journal
Phase transitions in the one-dimensional ionic Hubbard model
Creators: name: Chung, Myung-Hoon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study quantum phase transitions by measuring the bond energy, the number density, and the half-chain entanglement entropy in the one-dimensional ionic Hubbard model. By performing the infinite density matrix renormalization group with matrix product operator, we obtain ground states as the canonical form of matrix product states. Depending on the chemical potential and the staggered potential, the number density and the half-chain entanglement entropy shows clear signatures of the Mott transition. Our results confirm the success of the matrix product operator method for investigation of itinerant fermion systems.
description: 5 pages, 5 figures
Some observations on two-way finite automata with quantum and classical states
Creators: name: Qiu, Daowen
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: {\it Two-way finite automata with quantum and classical states} (2qcfa's) were introduced by Ambainis and Watrous. Though this computing model is more restricted than the usual {\it two-way quantum finite automata} (2qfa's) first proposed by Kondacs and Watrous, it is still more powerful than the classical counterpart. In this note, we focus on dealing with the operation properties of 2qcfa's. We prove that the Boolean operations (intersection, union, and complement) and the reversal operation of the class of languages recognized by 2qcfa's with error probabilities are closed; as well, we verify that the catenation operation of such class of languages is closed under certain restricted condition. The numbers of states of these 2qcfa's for the above operations are presented. Some examples are included, and $\{xx^{R}|x\in \{a,b\}^{*},#_{x}(a)=#_{x}(b)\}$ is shown to be recognized by 2qcfa with one-sided error probability, where $x^{R}$ is the reversal of $x$, and $#_{x}(a)$ denotes the $a$'s number in string $x$.
description: Comments and suggestions are welcome