cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Host Galaxy and the Environment of the z = 1.195 Quasar 3C 190
Creators: name: Stockton, Alan
name: Ridgway, Susan E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present deep imaging and spectroscopic observations of the z = 1.195 quasar 3C 190 and its immediate environment. The quasar is surrounded by an asymmetric low-surface-brightness envelope in which there are also several galaxies with characteristic dimensions of 3-5 kpc. Some of these form a linear structure some 50 kpc long in projection, offset from the quasar and almost perpendicular to the radio axis. Spectroscopy of this feature indicates the presence of a starburst component as well as stars a few 10^8 years old. Velocities of the emission- line gas associated with H II regions in the linear feature are difficult to reconcile with any reasonable model that is also consistent with the observed morphology. One possible scenario is an edge-on disk in an extremely massive (~10^12 solar mass) halo; another is two independent chain galaxies, with the apparent alignment being fortuitous. Taking into account all of the types of extended material we find in the vicinity of 3C 190, we appear to be witnessing a relatively brief phase in the development of a spheroidal galaxy, in which merging is proceeding nearly simultaneously in a variety of different regimes. This system may be one of the clearest examples yet found for the mechanism by which many elliptical galaxies and bulges of early-type spirals form in the early Universe.
description: 19 pages, 8 figures, accepted for publication in The Astrophysical Journal
Dielectric trapping of biopolymers translocating through insulating membranes
Creators: name: Buyukdagli, Sahin
name: Sarabadani, Jalal
name: Ala-Nissila, Tapio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Sensitive sequencing of biopolymers by nanopore-based translocation techniques requires extension of the time spent by the molecule in the pore. We develop an electrostatic theory of polymer translocation to show that the translocation time can be extended via the dielectric trapping of the polymer. In dilute salt conditions, the dielectric contrast between the low permittivity membrane and large permittivity solvent gives rise to attractive interactions between the cis and trans portions of the polymer. This self-attraction acts as a dielectric trap that can enhance the translocation time by orders of magnitude. We also find that electrostatic interactions result in the piecewise scaling of the translocation time $τ$ with the polymer length $L$. In the short polymer regime $L\lesssim10$ nm where the external drift force dominates electrostatic polymer interactions, the translocation is characterized by the drift behavior $τ\sim L^2$. In the intermediate length regime $10\;{\rm nm}\lesssim L\lesssimκ_{\rm b}^{-1}$ where $κ_{\rm b}$ is the Debye-Hückel screening parameter, the dielectric trap takes over the drift force. As a result, increasing polymer length leads to quasi-exponential growth of the translocation time. Finally, in the regime of long polymers $L\gtrsimκ_{\rm b}^{-1}$ where salt screening leads to the saturation of the dielectric trap, the translocation time grows linearly as $τ\sim L$. This strong departure from the drift behavior highlights the essential role played by electrostatic interactions in polymer translocation.
Novel Properties of The Apparent Metal-Insulator Transition in Two-Dimensional Systems
Creators: name: Hanein, Y.
name: Shahar, D.
name: Yoon, J.
name: Li, C. C.
name: Tsui, D. C.
name: Shtrikman, Hadas
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The low-temperature conductivity of low-density, high-mobility, two-dimensional hole systems in GaAs was studied. We explicitly show that the metal-insulator transition, observed in these systems, is characterized by a well-defined critical density, p_0c. We also observe that the low-temperature conductivity of these systems depends linearly on the hole density, over a wide density range. The high-density linear conductivity extrapolates to zero at a density close to the critical density.
description: 4 Figures
Spin Dynamical Properties of the Layered Perovskite La1.2Sr1.8Mn2O7
Creators: name: Fujioka, H.
name: Kubota, M.
name: Hirota, K.
name: Yoshizawa, H.
name: Moritomo, Y.
name: Endoh, Y.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Inelastic neutron-scattering measurements were performed on a single crystal of the layered colossal magnetoresistance (CMR) material La1.2Sr1.8Mn2O7 (Tc ~ 120K). We found that the spin wave dispersion is almost perfectly two-dimensional with the in-plane spin stiffness constant D ~ 151meVA. The value is similar to that of similarly doped La1-xSrxMnO3 though its Tc is three times higher, indicating a large renormalization due to low dimensionality. There exist two branches due to a coupling between layers within a double-layer. The out-of-plane coupling is about 30% of the in-plane coupling though the Mn-O bond lengths are similar.
description: 3 pages, 3 figures J. Phys. Chem. Solids in press
Additional file 1 of β-catenin represses miR455-3p to stimulate m6A modification of HSF1 mRNA and promote its translation in colorectal cancer
Creators: name: Song, Ping
name: Feng, Lifeng
name: Li, Jiaqiu
name: Dai, Dongjun
name: Zhu, Liyuan
name: Wang, Chaoqun
name: Li, Jingyi
name: Li, Ling
name: Zhou, Qiyin
name: Shi, Rongkai
name: Wang, Xian
name: Jin, Hongchuan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Table S1. RNA oligonucleotide sequences. Table S2. Primer sequences.
Stationary dark energy: the present universe as a global attractor
Creators: name: Amendola, Luca
name: Tocchini-Valentini, Domenico
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a cosmological model that makes a significant step toward solving the coincidence problem of the near similarity at the present of the dark energy and dark matter components. Our cosmology has the following properties: a) among flat and homogeneous spaces, the present universe is a global attractor: all the possible initial conditions lead to the observed proportion of dark energy and dark matter; once reached, it remains fixed forever; b) the expansion is accelerated at the present, as requested by the supernovae observations; c) the model is consistent with the large-scale structure and microwave background data; d) the dark energy and the dark matter densities always scale similarly after equivalence and are close to within two orders of magnitude. The model makes use of a non-linear coupling of the dark energy to the dark matter that switches on after structure formation.
description: 5 pages, 4 figures, submitted to Phys. Rev. Lett. Minor revision (added some refs, shortened to match PRL requirements)
Additional file 2 of β-catenin represses miR455-3p to stimulate m6A modification of HSF1 mRNA and promote its translation in colorectal cancer
Creators: name: Song, Ping
name: Feng, Lifeng
name: Li, Jiaqiu
name: Dai, Dongjun
name: Zhu, Liyuan
name: Wang, Chaoqun
name: Li, Jingyi
name: Li, Ling
name: Zhou, Qiyin
name: Shi, Rongkai
name: Wang, Xian
name: Jin, Hongchuan
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Cancer

description: Additional file 2: Supplemnetary Figures 1-6. Fig. S1. WNT/β-catenin signaling activates HSF1. Fig. S2. β-catenin has no effects on the RNA and protein half-life of HSF1. Fig. S3. The effect of microRNAs on HSF1 expression in CRC. Fig. S4. m6A modification of HSF1 mRNA. Fig. S5. The effects of miR455-3p and m6A modification on HSF1. Fig. S6. Volcano plot displays differentially regulated genes upon LiCl treatment.
Additional file 2 of CircRNA inhibits DNA damage repair by interacting with host gene
Creators: name: Xu, Xiaolong
name: Zhang, Jingwei
name: Tian, Yihao
name: Gao, Yang
name: Dong, Xin
name: Chen, Wenbo
name: Yuan, Xiaoning
name: Yin, Weinan
name: Xu, Jinjing
name: Chen, Ke
name: He, Chunjiang
name: Wei, Lei
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Table S1. The ratio of circ-to-linear of circSMARCA5 (expression of circRNA / linear host genes) and clinical pathologic characteristics of breast cancer.
Orbital Localization and Delocalization Effects in the U 5f^2 Configuration: Impurity Problem
Creators: name: Koga, Mikito
name: Liu, Wenjian
name: Dolg, Michael
name: Fulde, Peter
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Anderson models, based on quantum chemical studies of the molecule of U(C_8H_8)_2, are applied to investigate the problem of an U impurity in a metal. The special point here is that the U 5f-orbitals are divided into two subsets: an almost completely localized set and a considerably delocalized one. Due to the crystal field, both localized and delocalized U 5f-orbitals affect the low-energy physics. A numerical renormalization group study shows that every fixed point is characterized by a residual local spin and a phase shift. The latter changes between 0 and π/2, which indicates the competition between two different fixed points. Such a competition between the different local spins at the fixed points reflects itself in the impurity magnetic susceptibility at high temperatures. These different features cannot be obtained if the special characters of U 5f-orbitals are neglected.
description: 4 pages, REVTeX, email to mkoga@rumi.ucdavis.edu
Assisted Tunneling in Ferromagnetic Junctions and Half-Metallic Oxides
Creators: name: Bratkovsky, A. M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Different mechanisms of spin-dependent tunneling are analyzed with respect to their role in tunnel magnetoresistance (TMR). Microscopic calculation within a realistic model shows that direct tunneling in iron group systems leads to about a 30% change in resistance, which is close but lower than experimentally observed values. The larger observed values of the tunnel magnetoresistance (TMR) might be a result of tunneling involving surface polarized states. It is found that tunneling via resonant defect states in the barrier radically decreases the TMR by order of magnitude. One-magnon emission is shown to reduce the TMR, whereas phonons increase the effect. The inclusion of both magnons and phonons reasonably explains an unusual bias dependence of the TMR. The model presented here is applied qualitatively to half-metallics with 100% spin polarization, where one-magnon processes are suppressed and the change in resistance in the absence of spin-mixing on impurities may be arbitrarily large. Even in the case of imperfect magnetic configurations, the resistance change can be a few 1000 percent. Examples of half-metallic systems are CrO2/TiO2 and CrO2/RuO2.
description: 3 pages, REVTeX 3.0, 2 eps figures included via epsf
Energy Release During Disk Accretion onto a Rapidly Rotating Neutron Star
Creators: name: Sibgatullin, N. R.
name: Sunyaev, R. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The energy release L_s on the surface of a neutron star (NS) with a weak magnetic field and the energy release L_d in the surrounding accretion disk depend on two independent parameters that determine its state (for example, mass M and cyclic rotation frequency f) and is proportional to the accretion rate. We derive simple approximation formulas illustrating the dependence of the efficiency of energy release in an extended disk and in a boundary layer near the NS surface on the frequency and sense of rotation for various NS equations of state. Such formulas are obtained for the quadrupole moment of a NS, for a gap between its surface and a marginally stable orbit, for the rotation frequency in an equatorial Keplerian orbit and in the marginally stable circular orbit, and for the rate of NS spinup via disk accretion. In the case of NS and disk counterrotation, the energy release during accretion can reach $0.67\dot{M}c^2$. The sense of NS rotation is a factor that strongly affects the observed ratio of nuclear energy release during bursts to gravitational energy release between bursts in X-ray bursters. The possible existence of binary systems with NS and disk counterrotation in the Galaxy is discussed. Based on the static criterion for stability, we present a method of constructing the dependence of gravitational mass M on Kerr rotation parameter j and on total baryon mass (rest mass) m for a rigidly rotating neutron star. We show that all global NS characteristics can be expressed in terms of the function M(j, m) and its derivatives.
description: 42 pages, 12 figures, to appear in Astronomy Letters, 2000, v.26, p.699
Spectral and orbital characterisation of the directly imaged giant planet HIP 65426 b
Creators: name: Cheetham, A. C.
name: Samland, M.
name: Brems, S. S.
name: Launhardt, R.
name: Chauvin, G.
name: Segransan, D.
name: Henning, T.
name: Quirrenbach, A.
name: Avenhaus, H.
name: Cugno, G.
name: Girard, J.
name: Godoy, N.
name: Kennedy, G. M.
name: Maire, A. -L.
name: Metchev, S.
name: Mueller, A.
name: Barcucci, A. Musso
name: Olofsson, J.
name: Pepe, F.
name: Quanz, S. P.
name: Queloz, D.
name: Reffert, S.
name: Rickman, E.
name: van Boekel, R.
name: Boccaletti, A.
name: Bonnefoy, M.
name: Cantalloube, F.
name: Charnay, B.
name: Delorme, P.
name: Janson, M.
name: Keppler, M.
name: Lagrange, A. -M.
name: Langlois, M.
name: Lazzoni, C.
name: Menard, F.
name: Mesa, D.
name: Meyer, M.
name: Schmidt, T.
name: Sissa, E.
name: Udry, S.
name: Zurlo, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: HIP 65426 b is a recently discovered exoplanet imaged during the course of the SPHERE-SHINE survey. Here we present new $L'$ and $M'$ observations of the planet from the NACO instrument at the VLT from the NACO-ISPY survey, as well as a new $Y-H$ spectrum and $K$-band photometry from SPHERE-SHINE. Using these data, we confirm the nature of the companion as a warm, dusty planet with a mid-L spectral type. From comparison of its SED with the BT-Settl atmospheric models, we derive a best-fit effective temperature of $T_{\text{eff}}=1618\pm7$ K, surface gravity $\log g=3.78^{+0.04}_{-0.03}$ and radius $R=1.17\pm0.04$ $R_{\text{J}}$ (statistical uncertainties only). Using the DUSTY and COND isochrones we estimate a mass of $8\pm1$ $M_{\text{J}}$. Combining the astrometric measurements from our new datasets and from the literature, we show the first indications of orbital motion of the companion (2.6$σ$ significance) and derive preliminary orbital constraints. We find a highly inclined orbit ($i=107^{+13}_{-10}$ deg) with an orbital period of $800^{+1200}_{-400}$ yr. We also report SPHERE sparse aperture masking observations that investigate the possibility that HIP 65426 b was scattered onto its current orbit by an additional companion at a smaller orbital separation. From this data we rule out the presence of brown dwarf companions with masses greater than 16 $M_{\text{J}}$ at separations larger than 3 AU, significantly narrowing the parameter space for such a companion.
description: Accepted for publication in A&A
Comparison of source detection procedures for XMM-Newton images
Creators: name: Valtchanov, I.
name: Pierre, M.
name: Gastaud, R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Procedures based on current methods to detect sources in X-ray images are applied to simulated XMM images. All significant instrumental effects are taken into account, and two kinds of sources are considered -- unresolved sources represented by the telescope PSF and extended ones represented by a b-profile model. Different sets of test cases with controlled and realistic input configurations are constructed in order to analyze the influence of confusion on the source analysis and also to choose the best methods and strategies to resolve the difficulties. In the general case of point-like and extended objects the mixed approach of multiresolution (wavelet) filtering and subsequent detection by SExtractor gives the best results. In ideal cases of isolated sources, flux errors are within 15-20%. The maximum likelihood technique outperforms the others for point-like sources when the PSF model used in the fit is the same as in the images. However, the number of spurious detections is quite large. The classification using the half-light radius and SExtractor stellarity index is succesful in more than 98% of the cases. This suggests that average luminosity clusters of galaxies (L_[2-10] ~ 3x10^{44} erg/s) can be detected at redshifts greater than 1.5 for moderate exposure times in the energy band below 5 keV, provided that there is no confusion or blending by nearby sources. We find also that with the best current available packages, confusion and completeness problems start to appear at fluxes around 6x10^{-16} erg/s/cm^2 in [0.5-2] keV band for XMM deep surveys.
description: 20 pages, 16 figures. Accepted for publication in A&A
Eight-band calculations of strained InAs/GaAs quantum dots compared with one, four, and six-band approximations
Creators: name: Pryor, Craig
Publisher: name: arXiv
Year: 1997
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The electronic structure of pyramidal shaped InAs/GaAs quantum dots is calculated using an eight-band strain dependent $\bf k\cdot p$ Hamiltonian. The influence of strain on band energies and the conduction-band effective mass are examined. Single particle bound-state energies and exciton binding energies are computed as functions of island size. The eight-band results are compared with those for one, four and six bands, and with results from a one-band approximation in which m(r) is determined by the local value of the strain. The eight-band model predicts a lower ground state energy and a larger number of excited states than the other approximations.
description: 8 pages, 7 figures, revtex, epsf
General Relativistic Electromagnetic Fields of a Slowly Rotating Magnetized Neutron Star. I. Formulation of the equations
Creators: name: Rezzolla, L.
name: Ahmedov, B. J.
name: Miller, J. C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present analytic solutions of Maxwell equations in the internal and external background spacetime of a slowly rotating magnetized neutron star. The star is considered isolated and in vacuum, with a dipolar magnetic field not aligned with the axis of rotation. With respect to a flat spacetime solution, general relativity introduces corrections related both to the monopolar and the dipolar parts of the gravitational field. In particular, we show that in the case of infinite electrical conductivity general relativistic corrections due to the dragging of reference frames are present, but only in the expression for the electric field. In the case of finite electrical conductivity, however, corrections due both to the spacetime curvature and to the dragging of reference frames are shown to be present in the induction equation. These corrections could be relevant for the evolution of the magnetic fields of pulsars and magnetars. The solutions found, while obtained through some simplifying assumption, reflect a rather general physical configuration and could therefore be used in a variety of astrophysical situations.
description: A few typos corrected; matches the versions in MNRAS
Multiplicative order convergence in $f$-algebras
Creators: name: Aydın, Abdullah
Publisher: name: arXiv
Year: 2019
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46A40, 46E30

description: A net $(x_α)$ in an $f$-algebra $E$ is said to be multiplicative order convergent to $x\in E$ if $\x_α-x\u\oc 0$ for all $u\in E_+$. In this paper, we introduce the notions $mo$-convergence, $mo$-Cauchy, $mo$-complete, $mo$-continuous and $mo$-KB-space. Moreover, we study the basic properties of these notions.
description: 7
Diptera Linnaeus 1758
Creators: name: BICKEL, DANIEL J.
name: MARTIN, JOHN
name: AGNIHOTRI, PRIYA
name: SINGH, HUKAM
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Tracheophyta
Magnoliopsida
Diptera

description: Order Diptera Linnaeus, 1758  Superfamily Empidoidea Latreille, 1804  Family Dolichopodidae Latreille, 1809   The Dolichopodidae are one of five major lineages within the Diptera superfamily Empidoidea (for overviews of the family, see Bickel, 2009 and Grichanov & Brooks, 2017). Recently, the limits of the Dolichopodidae were expanded to include the Microphorinae and Parathalassiinae, both of which had been placed as subfamilies within the previously paraphyletic family Empididae (Sinclair & Cumming, 2006). This expanded concept of the Dolichopodidae is referred to as Dolichopodidae sensu lato (i. e., including the subfamilies Microphorinae and Parathalassiinae) while the Dolichopodidae sensu stricto is equivalent to the more restricted traditional concept of Dolichopodidae.
 Both the Microphorinae and Parathalassiinae have plesiomorphic wing, antennal, and male postabdominal characters with respect to the Dolichopodidae s. s. and have a much longer fossil record. These two subfamilies appear to have been diverse in both Cretaceous and Baltic amber (Cumming & Brooks, 2019; Shamshev & Perkovsky, 2022).
 By comparison, Dolichopodidae s. s. do not appear in the fossil record before the Paleogene period (a species described as lower Cretaceous Lebanon amber was apparently mislabeled and is from Baltic amber, see Appendix). What is remarkable here is that by the Eocene the Dolichopodidae s. s. show a high level of taxonomic diversity, with most modern subfamilies in place, and the family is abundant in many Cenozoic ambers (e. g., Baltic, Dominican and Mexican). This apparent rapid radiation is supported by molecular evidence, where mitochondrial and nuclear markers suggest a rapid differentiation of the subfamilies. Lim et al. (2010) found that genera that were difficult to place into subfamilies based on morphological characters were also difficult to place using molecular data.
description: Published as part of BICKEL, DANIEL J., MARTIN, JOHN, AGNIHOTRI, PRIYA & SINGH, HUKAM, 2022, Dolichopodidae (Diptera) from the Eocene amber deposits of Cambay and Kutch Basins, India, pp. 475-486 in Palaeoentomology 5 (5) on pages 476-479, DOI: 10.11646/palaeoentomology.5.5.9, http://zenodo.org/record/7333779
On Local Symmetric Order Parameters of Vortex Lattice States
Creators: name: Ozaki, Masa-aki
name: Hori, Yoshiki
name: Goto, Akira
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: This paper gives a new refined definition of local symmetric order parameters (OPs)(s-wave, d-wave and p-wave order parameters) of vortex lattice states for singlet superconductivity. s-wave, d-wave and p-wave OPs at a site (m,n) are defined as A, B and E representations of the four fold rotation C_4 at the site (m,n) of nearest neighbor OPs etc. The new OPs have a well defined nature such that an OP(e.g. d-wave) at the site obtained under translation by a lattice vector (of the vortex lattice) from a site (m,n) is expressed by the corresponding OP (e.g. d-wave) at the site (m,n) times a phase factor. The winding numbers of s-wave and d-wave OPs are given.
description: RevTeX v3.1, 5 pages with 3 figures, uses epsf.sty. to appear in Prog. Theor. Phys. Vol.101 No.3. (1999)
Photonic jet: direct micro-peak machining
Creators: name: Pierron, Robin
name: Pfeiffer, Pierre
name: Chabrol, Grégoire
name: Lecler, Sylvain
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the rst evidence of direct micropeak machining using a photonic jet (PJ) with nanosecond laser pulses. PJ is a high concentrated propagative light beam with a full width at half maximum (FWHM) smaller than the diraction limit. In our case, PJs are generated with a shaped optical ber tip. Micropeaks with a FWHM of around 1 $μ$m, a height until 590 nm and an apex radius of 14 nm, were repeatability achieved on a silicon wafer. The experiments have been carried out in ambient air using a 100/140 multimode silica ber with a shaped tip along with a 35 kHz pulsed laser emitting 100 ns pulses at 1064 nm. This study shows that the phenomenon occurs only at low energies, just under the ablation threshold. Bulk material appears to have moved around to achieve the peaks in a selforganized process. We hypothesize that the matter was melted and not vaporized; hydrodynamic ow of molten material governed by surfacetension forces may be the causes. This surface modication has many applications. For example, this paper reports on the decrease of wettability of a textured silicon wafer.
An analytic function fit to Monte-Carlo X- and gamma-ray spectra from Thomson thick thermal/nonthermal hybrid plasmas
Creators: name: Boettcher, M.
name: Saxena, R.
name: Crider, A. W.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We suggest a simple fitting formula to represent Comptonized X- and gamma-ray spectra from a hot ($kT_e \gtrsim 10$ keV), Thomson thick ($τ_T \gtrsim 5$) hybrid thermal/nonthermal plasma in spherical geometry with homogeneous soft-photon injection throughout the Comptonizing region. We have used this formula to fit a large data base of Monte-Carlo generated photon spectra, and provide correlations between the physical parameters of the plasma and the fit parameters of our analytic fit function. These allow us to construct Thomson thick Comptonization spectra without performing computer intensive Monte Carlo simulations of the high-Thomson-depth hybrid-plasma Comptonization problem. Our formulae can easily be used in data analysis packages such as XSPEC, thus rendering rapid $χ^2$ fitting of such spectra to real data feasible.
description: 16 pages; including 6 figures (using epsf.sty) and 1 table. Accepted for publication in ApJ Supplement Series
D{é}tection de locuteurs dans les s{é}ries TV
Creators: name: Bost, Xavier
name: Linares, Georges
Publisher: name: arXiv
Year: 2018
Subjects: subject: Multimedia (cs.MM)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Speaker diarization of audio streams turns out to be particularly challenging when applied to fictional films, where many characters talk in various acoustic conditions (background music, sound effects, variations in intonation...). Despite this acoustic variability, such movies exhibit specific visual patterns, particularly within dialogue scenes. In this paper, we introduce a two-step method to achieve speaker diarization in TV series: speaker diarization is first performed locally within scenes visually identified as dialogues; then, the hypothesized local speakers are compared to each other during a second clustering process in order to detect recurring speakers: this second stage of clustering is subject to the constraint that the different speakers involved in the same dialogue have to be assigned to different clusters. The performances of our approach are compared to those obtained by standard speaker diarization tools applied to the same data.
description: in French
title: 02_0533
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Comparison of different ladder models
Creators: name: Jeckelmann, E.
name: Scalapino, D. J.
name: White, S. R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using density matrix renormalization group calculations, we compare results obtained for the t-J, one-band Hubbard and three-band Hubbard models of a two-leg CuO ladder. Spin and charge gaps, pair binding energies, and effective pair hoppings are calculated for a wide range of parameters. All three models have an insulating state at a filling corresponding to one hole per Cu site. For physically relevant parameters their spin gaps are similar in size but they exhibit quite different charge gaps. We find that the binding energy of a pair of doped holes is of the order of the undoped ladder spin gap for all three models. The main difference between the models is the size of the effective pair hopping, which is significantly larger in the three-band model with parameters appropriate for CuO materials than in the other two models.
description: 7 pages, incl. eps figures
Natural orbital functional for spin-polarized periodic systems
Creators: name: Quintero-Monsebaiz, Raul
name: Mitxelena, Ion
name: Rodríguez-Mayorga, Mauricio
name: Vela, Alberto
name: Piris, Mario
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Natural orbital functional theory is considered for systems with one or more unpaired electrons. An extension of the Piris natural orbital functional (PNOF) based on electron pairing approach is presented, specifically, we extend the independent pair model, PNOF5, and the interactive pair model PNOF7 to describe spin-uncompensated systems. An explicit form for the two-electron cumulant of high-spin cases is only taken into account, so that singly occupied orbitals with the same spin are solely considered. The rest of electron pairs with opposite spins remain paired. The reconstructed two-particle reduced density matrix fulfills certain N-representability necessary conditions, as well as guarantees the conservation of the total spin. The theory is applied to model systems with strong non-dynamic (static) electron correlation, namely, the one-dimensional Hubbard model with periodic boundary conditions and hydrogen rings. For the latter, PNOF7 compares well with exact diagonalization results so the model presented here is able to provide a correct description of the strong-correlation effects.
description: 9 pages, 6 figures
Etching of semiconductors and metals by the photonic jet with shaped optical fiber tips
Creators: name: Pierron, Robin
name: Lecler, Sylvain
name: Zelgowski, Julien
name: Pfeiffer, Pierre
name: Mermet, Frédéric
name: Fontaine, Joël
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The etching of semiconductors and metals by a photonic jet (PJ) generated with a shaped optical ber tip is studied. Etched marks with a diameter of 1 micron have been realized on silicon, stainless steel and titanium with a 35 kHz pulsed laser, emitting 100 ns pulses at 1064 nm. The selection criteria of the ber and its tip are discussed. We show that a 100/140 silica ber is a good compromise which takes into account the injection, the working distance and the energy coupled in the higherorder modes. The energy balance is performed on the basis of the known ablation threshold of the material. Finally, the dependence between the etching depth and the number of pulses is studied. Saturation is observed probably due to a redeposition of the etched material, showing that a higher pulse energy is required for deeper etchings.
Preparation and characterization of young Prunus persica fruit fraction and its anti-inflammatory effect on a transgenic zebrafish model
Creators: name: Zhang, Xuanming
name: Wang, Lizhen
name: Li, Xiaobin
name: Zhang, Shanshan
name: Hou, Hairong
name: Zhang, Mengqi
name: He, Qiuxia
name: Liu, Kechun
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Plant Biology

description: Young Prunus persica fruits (YPF) contain substances that are distinct from those found in the mature fruits. Response surface methodology was used to explore the influences of extraction conditions including ultrasonic time (X1), ethanol proportion (X2), liquid-to-solid ratio (X3) and temperature (X4) on UV-absorbing components from YPF. To purify the extract, the adsorption/desorption properties of 280 nm-absorbing components on AB-8 resin were investigated. A total of 11 metabolites (amino acids, glycosylated amino acids and phenolics) were identified in the UV-absorbing fraction of YPF (YPF-F) based on LC-MS/MS assays. In a study of in vivo anti-inflammatory activity, YPF-F significantly decreased the number of inflammatory cells that migrated to the lateral line location in CuSO4-induced transgenic fluorescent zebrafish. YPF should be utilized as a high value resource of functional foods.
Uncertainty quantification due to optical potentials in models for (d,p) reactions
Creators: name: King, G. B.
name: Lovell, A. E.
name: Nunes, F. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent work has studied the uncertainty in predictions for A(d,p)B reactions using the distorted-wave Born approximation (DWBA), coming from the parameterization of the effective dA interactions [Lovell et al., Phys. Rev. C 95, 024611]. There are different levels of sophistication in theories for one-nucleon transfer reactions, including the adiabatic wave approximation (ADWA) which takes deuteron breakup into account to all orders. In this work, we quantify the uncertainties associated with the ADWA method that come from the parameterization of the NA interactions, and compare ADWA with DWBA. We use nucleon elastic-scattering data on a wide variety of targets to constrain the optical potential input to the ADWA theory. Pulling from the $χ^2$-distribution, we obtain 95% confidence plots for the elastic distributions. From the resulting parameters, we predict 95% confidence bands for the (d,p) transfer cross sections. Results obtained with the uncorrelated $χ^2$ are compared to those using the correlated $χ^2$ of Lovell et al. We also repeat the DWBA calculations for the same reactions for comparison purposes. We find that NA elastic scattering data provides a significant constraint to the interactions, and, when the uncertainties are propagated to the transfer reactions using ADWA, predictions are consistent with the transfer data. The angular distributions for ADWA differ from those predicted by DWBA, particularly at small angles. Confidence bands obtained using the uncorrelated $χ^2$-function are unrealistically narrow and become much wider when the correlated $χ^2$-function is considered. For most cases, the uncertainty bands obtained in ADWA are narrower than DWBA, when using elastic data of similar quality and range. However, given the large uncertainties predicted from the correlated $χ^2$-function, the transfer data cannot discriminate between these two methods.
description: 10 pages, 7 figures
Frank-Wolfe Algorithm for the Exact Sparse Problem
Creators: name: Cherfaoui, Farah
name: Emiya, Valentin
name: Ralaivola, Liva
name: Anthoine, Sandrine
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In this paper, we study the properties of the Frank-Wolfe algorithm to solve the \ExactSparse reconstruction problem. We prove that when the dictionary is quasi-incoherent, at each iteration, the Frank-Wolfe algorithm picks up an atom indexed by the support. We also prove that when the dictionary is quasi-incoherent, there exists an iteration beyond which the algorithm converges exponentially fast.
Additional file 1: of Secondary findings in 421 whole exome-sequenced Chinese children
Creators: name: Chen, Wen
name: Li, Wenke
name: Ma, Yi
name: Zhang, Yujing
name: Han, Bianmei
name: Liu, Xuewen
name: Zhao, Kun
name: Zhang, Meixian
name: Mi, Jie
name: Fu, Yuanyuan
name: Zhou, Zhou
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Age and gender distributions in our cohort. All 421 subjects were under 18Â years old at the time of sample collection. There were more males (blue column) than females (orange column). (DOCX 20 kb)
Dephasing Effects by Ferromagnetic Boundary on Resistivity in Disordered Metallic Layer
Creators: name: Tatara, Gen
name: Fukuyama, Hidetoshi
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The resistivity of disordered metallic layer sandwiched by two ferromagnetic layers at low-temperature is investigated theoretically. It is shown that the magnetic field acting at the interface does not affect the classical Boltzmann resistivity but causes a dephasing among electrons in the presence of the spin-orbit interaction, suppressing the anti-localization due to the spin-orbit interaction. The dephasing turns out to be stronger in the case where the magnetization of the two layers is parallel, contributing to a positive magnetoresistance close to a switching field at low temperature.
description: 11 pages, 3 figures. Title modified in journal version
Mirror Maps in Chern-Simons Gauge Theory
Creators: name: Cooper, L.
name: Kogan, I. I.
name: Szabo, R. J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We describe mirror symmetry in N=2 superconformal field theories in terms of a dynamical topology changing process of the principal fiber bundle associated with a topological membrane. We show that the topological symmetries of Calabi-Yau sigma-models can be obtained from discrete geometric transformations of compact Chern-Simons gauge theory coupled to charged matter fields. We demonstrate that the appearence of magnetic monopole-instantons, which interpolate between topologically inequivalent vacua of the gauge theory, implies that the discrete symmetry group of the worldsheet theory is realized kinematically in three dimensions as the magnetic flux symmetry group. From this we construct the mirror map and show that it corresponds to the interchange of topologically non-trivial matter field and gauge degrees of freedom. We also apply the mirror transformation to the mean field theory of the quantum Hall effect. We show that it maps the Jain hierarchy into a new hierarchy of states in which the lowest composite fermions have the same filling fractions.
description: 40 pages LaTeX, 4 postscript files, uses psfig.sty; minor textual changes, typos corrected, references added
Detection of Gravitational Waves from Inflation
Creators: name: Kamionkowski, Marc
name: Jaffe, Andrew H.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent measurements of temperature fluctuations in the cosmic microwave background (CMB) indicate that the Universe is flat and that large-scale structure grew via gravitational infall from primordial adiabatic perturbations. Both of these observations seem to indicate that we are on the right track with inflation. But what is the new physics responsible for inflation? This question can be answered with observations of the polarization of the CMB. Inflation predicts robustly the existence of a stochastic background of cosmological gravitational waves with an amplitude proportional to the square of the energy scale of inflation. This gravitational-wave background induces a unique signature in the polarization of the CMB. If inflation took place at an energy scale much smaller than that of grand unification, then the signal will be too small to be detectable. However, if inflation had something to do with grand unification or Planck-scale physics, then the signal is conceivably detectable in the optimistic case by the Planck satellite, or if not, then by a dedicated post-Planck CMB polarization experiment. Realistic developments in detector technology as well as a proper scan strategy could produce such a post-Planck experiment that would improve on Planck's sensitivity to the gravitational-wave background by several orders of magnitude in a decade timescale.
description: 13 page, 4 figures. To appear in the proceedings of DPF2000, Columbus, 9-12 August 2000 and (with slight revisions) in the proceedings of, "Gravitational Waves: A Challenge to Theoretical Astrophysics," Trieste, 5-9 June 2000
title: A chave dramática e a lenta abertura das fechaduras pessoanas
Creators: name: Penteado, Flávio Rodrigo
Publisher: name: IELT – Instituto de Estudos de Literatura e Tradição, Faculdade de Ciências Sociais e Humanas, Universidade NOVA de Lisboa
Year: 2018

description: O artigo dá continuidade à revisão do tratamento das categorias “poeta dramático” e “dramaturgo” com base na tradição crítica sobre Fernando Pessoa, tarefa iniciada em texto publicado no número anterior da presente revista. Desta vez, são examinados não o trabalho de críticos que rejeitaram tal chave de leitura proposta por Pessoa, mas sim o daqueles que a incorporaram em suas abordagens da obra do autor. Desse modo, por meio da discussão de diferentes abordagens críticas, procura-se demonstrar que aquelas duas noções configuram menos elementos externos à obra pessoana do que um de seus componentes essenciais.
description: Penteado, Flávio Rodrigo (2018). A chave dramática e a lenta abertura das fechaduras pessoanas. Revista Estranhar Pessoa, 5: 49–61. ISSN 2183-4075.
Detection of a Hard Tail in the X-ray Spectrum of the Z Source GX 349+2
Creators: name: Di Salvo, T.
name: Robba, N. R.
name: Iaria, R.
name: Stella, L.
name: Burderi, L.
name: Israel, G. L.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a BeppoSAX observation of the Z source GX 349+2 covering the energy range 0.1-200 keV. The presence of flares in the light curve indicates that the source was in the flaring branch during the BeppoSAX observation. We accumulated energy spectra separately for the non-flaring intervals and the flares. In both cases the continuum is well described by a soft blackbody ($k T_{BB} \sim 0.5$ keV) and a Comptonized spectrum corresponding to an electron temperature of $k T_e \sim 2.7$ keV, optical depth $τ\sim 10$ (for a spherical geometry), and seed photon temperature of $k T_W \sim 1$ keV. All temperatures tend to increase during the flares. In the non-flaring emission a hard tail dominates the spectrum above 30 keV. This can be fit by a power law with photon index $\sim 2$, contributing $\sim 2%$ of the total source luminosity over the BeppoSAX energy range. A comparison with hard tails detected in some soft states of black hole binaries suggests that a similar mechanism could originate these components in black hole and neutron star systems.
description: 15 pages, including 8 figures, to appear in ApJ