cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
NICMOS observations of high redshift radio galaxies: witnessing the formation of bright elliptical galaxies?
Creators: name: Pentericci, L.
name: McCarthy, P. J.
name: Röttgering, H. J. A.
name: Miley, G. K.
name: van Breugel, W. J. M.
name: Fosbury, R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a near infrared imaging program of a sample of 19 radio galaxies with redshift between 1.7 and 3.2, using the NICMOS Camera 2 on the Hubble Space Telescope. The galaxies were observed in H-band which, for 18 of the 19 targets, samples the rest-frame optical emission longwards of the 4000 A break. The images show a wide range of morphologies, from unresolved to compact systems, to systems with substructures such as multiple emission peaks, to systems comprised of several components spread over large areas. The morphologies of 5 of the lowest redshift targets are well represented by a de Vaucouleurs profile, consistent with them being elliptical galaxies. Their average effective radius is a factor of 2 smaller than that of z=1 3CR radio galaxies at similar restframe wavelengths. The near infrared continuum light is generally well aligned with the radio axis and the aligned light has typical V-H colors of around 3.5-4. For several galaxies where WFPC2 images were available, we computed a high resolution map of the optical-to-infrared spectral indices: all multi-component systems present net color gradients between the various clumps. We argue that in these galaxies the continuum emission has probably a stellar origin. Finally in many cases we observe nearby faint objects close to the radio sources. The number density of these faint objects is slightly higher than what is found in the deep NICMOS parallel observations of random fields. These objects also tend to be aligned with the radio sources axis, suggesting that they may be related to the presence of the AGN. (shortened astro-ph version)
description: To appear in ApJS
title: 02_0709
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/
Quantum nanoconstrictions fabricated by cryo-etching in encapsulated graphene
Creators: name: Clericò, Vito
name: Delgado-Notario, Juan Antonio
name: Saiz-Bretín, Marta
name: Malyshev, Andrey V.
name: Meziani, Yahya M.
name: Hidalgo, Pedro
name: Méndez, Bianchi
name: Amado, Mario
name: Domínguez-Adame, Francisco
name: Diez, Enrique
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: More than a decade after the discovery of graphene, ballistic transport in nanostructures based on this intriguing material still represents a challenging field of research in two-dimensional electronics. The presence of rough edges in nanostructures based on this material prevents the appearance of truly ballistic electron transport as theo\-re\-tically predicted and, therefore, not well-developed plateaus of conductance have been revealed to date. In this work we report on a novel implementation of the cryo-etching method, which enabled us to fabricate graphene nanoconstrictions encapsulated between hexagonal boron nitride thin films with unprecedented control of the structure edges. High quality smooth nanometer-rough edges are characterized by atomic force microscopy and a clear correlation between low roughness and the existence of well-developed quantized conductance steps with the concomitant occurrence of ballistic transport is found at low temperature. In par\-ti\-cu\-lar, we come upon exact 2$e^{2}/h$ quantization steps of conductance at zero magnetic field due to size quantization, as it has been theoretically predicted for truly ballistic electron transport through graphene nanoconstrictions.
Alternative plants to be used in natural dyeing on wool yarn fibers
Creators: name: Hulya Kaynar
name: Ucar, Esra
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: In this study, 28 plants were collected from nature and the extracts were obtained with and without mordants from these plants. The wool yarns (3.5 N m natural wool carpet yarns obtained from the natural fibers 60 s, 23.3 µm, 10−4 cm) were colored by each of these extracts and the light and abrasion fastness of obtained colored substances of various colors were determined. While the plant showing the highest light fastness was walnut tree leaf (Juglans regia), the plant showing the highest abrasion fastness was determined as quince leaf (Cydonia oblonga). On the other hand, while the ferric sulfate as a mordant provided the highest light fastness, the highest abrasion fastness was obtained from the experimental group to which mordant was not applied.
A single-electron transistor made from a cadmium selenide nanocrystal
Creators: name: Klein, David L.
name: Roth, Richard
name: Lim, Andrew K. L.
name: Alivisatos, A. Paul
name: McEuen, Paul L.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The techniques of colloidal chemistry permit the routine creation of semiconductor nanocrystals, whose dimensions are much smaller than those that can be realized using lithographic techniques. The sizes of such nanocrystals can be varied systematically to study quantum size effects or to make novel electronic or optical materials with tailored properties. Preliminary studies of both the electrical and optical properties of individual nanocrystals have been performed recently. These studies show clearly that a single excess charge on a nanocrystal can markedly influence its properties. Here we present measurements of electrical transport in a single-electron transistor made from a colloidal nanocrystal of cadmium selenide. This device structure enables the number of charge carriers on the nanocrystal to be tuned directly, and so permits the measurement of the energy required for adding successive charge carriers. Such measurements are invaluable in understanding the energy-level spectra of small electronic systems, as has been shown by similar studies of lithographically patterned quantum dots and small metallic grains.
description: 3 pages, PDF format
Twist Angle Dependent Interlayer Exciton Lifetimes in van der Waals Heterostructures
Creators: name: Choi, Junho
name: Florian, Matthias
name: Steinhoff, Alexander
name: Erben, Daniel
name: Tran, Kha
name: Kim, Dong Seob
name: Sun, Liuyang
name: Quan, Jiamin
name: Claassen, Robert
name: Majumder, Somak
name: Hollingsworth, Jennifer A.
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Ueno, Keiji
name: Singh, Akshay
name: Moody, Galan
name: Jahnke, Frank
name: Li, Xiaoqin
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Van der Waals materials

description: In van der Waals (vdW) heterostructures formed by stacking two monolayers of transition metal dichalcogenides, multiple exciton resonances with highly tunable properties are formed and subject to both vertical and lateral conﬁnement. We investigate how a unique control knob, the twist angle between the two monolayers, can be used to control the exciton dynamics. We observe that the interlayer exciton lifetimes in MoSe2/WSe2 twisted bilayers (TBLs) change by one order of magnitude when the twist angle is varied from 1 ◦ to 3.5◦. Using a low-energy continuum model, we theoretically separate two leading mechanisms that inﬂuence interlayer exciton radiative lifetimes. The shift to indirect transitions in the momentum space with an increasing twist angle and the energy modulation from the moir´e potential both have a signiﬁcant impact on interlayer exciton lifetimes. We further predict distinct temperature dependence of interlayer exciton lifetimes in TBLs with diﬀerent twist angles, which is partially validated by experiments. While many recent studies have highlighted how the twist angle in a vdW TBL can be used to engineer the ground states and quantum phases due to many-body interaction, our studies explore its role in controlling the dynamics of optically excited states, thus, expanding the conceptual applications of “twistronics”.
Correlation functions by Cluster Variation Method for Ising model with NN, NNN and Plaquette interactions
Creators: name: Cirillo, E. N. M.
name: Gonnella, G.
name: Troccoli, M.
name: Maritan, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the procedure for calculating the pair correlation function in the context of the Cluster Variation Methods. As specific cases, we study the pair correlation function in the paramagnetic phase of the Ising model with nearest neighbors, next to the nearest neighbors and plaquette interactions in two and three dimensions. In presence of competing interactions, the so called disorder line separates in the paramagnetic phase a region where the correlation function has the usual exponential behavior from a region where the correlation has an oscillating exponentially damped behavior. In two dimensions, using the plaquette as the maximal cluster of the CVM approximation, we calculate the phase diagram and the disorder line for a case where a comparison is possible with results known in literature for the eight-vertex model. In three dimensions, in the CVM cube approximation, we calculate the phase diagram and the disorder line in some cases of particular interest. The relevance of our results for experimental systems like mixtures of oil, water and surfactant is also discussed.
description: 31 pages, LaTeX file, 7 figures
title: Εφαρμογή σε κινητά τηλέφωνα για άτομα με προβλήματα ακοής, χρησιμοποιώντας τεχνολογία Arduino
title: Assistive mobile application for the hearing impaired, by using Arduino technology
Creators: name: Μαργωνη Ιωαννα
Publisher: name: Technical University of Crete
Year: 2020

description: Η τεχνολογία, γενικότερα, και τα επιτεύγματα - προϊόντα της χρησιμοποιούνται για να κάνουν την ζωή των ανθρώπων καλύτερη και ευκολότερη. Με την πάροδο των ετών, και την εκλαϊκευση της τεχνολογίας και την χρήσης της, έγινε σαφές πως υπάρχουν πολλά περιθώρια προς την κατεύθυνση της βελτίωσης της ζωής των Ατόμων με Αναπηρία(ΑμεΑ). Τεχνολογικά προϊόντα τίθενται στην ευχέρεια των Ατόμων με Αναπηρία ανεξαρτήτως των ιδιαίτερων χαρακτηριστικών της κάθε περίπτωσης, με σκοπό να βοηθήσουν αυτά τα Άτομα να γίνουν περισσότερο λειτουργικά και αυτόνομα στην καθημερινότητα τους. Στην ίδια λογική εντάσσονται κι όλες οι ενέργειες της τεχνολογικής πρόοδου που σκοπό έχουν να αναπτύξουν τα σπίτια των ανθρώπων και να τα εξοπλίσουν με συσκευές που θα μπορούν να αλληλεπιδρούν με το περιβάλλον στο οποίο βρίσκονται και όντας στην υπηρεσία των χρηστών να τους διευκολύνουν, αναλαμβάνοντας επί της ουσίας οι ίδιες οι συσκευές να επιτελέσουν ένα συγκεκριμένο έργο. Είναι πολύ σύνηθης πλέον ο όρος "έξυπνο σπίτι" και "έξυπνη συσκευή". Όροι οι οποίοι ασφαλώς δεν έχουν σκοπό να προσδώσουν σκέψη και ευφυεία σε άψυχα αντικείμενα, αλλά υποδηλώνουν τη δυνατότητα των συσκευών αυτών να δέχονται ερεθίσματα από το περιβάλλον στο οποίο βρίσκονται και να μπορέσουν να επεξεργαστούν πληροφορία. Μία μεμονωμένη συσκευή είτε ένα σύνολο τέτοιων συσκευών που αποτελούν το "έξυπνο σπίτι" μπορεί να αναπτυχθεί με έναν συνδυασμό κατάλληλων προγραμματιζόμενων ολοκληρωμένων κυκλωμάτων και να εφαρμοστεί ανάλογα με τα χαρακτηριστικά που έχει σε πληθώρα εφαρμογών.
description: In general, technology and technological products both are used in order to make people’s life simpler and easier. During the past few years, tech gadgets have started to get used by far too many people since earlier, so that is something hopeful as it means that there are considerable scope to improve life of people with special needs. Many technological products are used by these kind of people no matter the need they may have, in order to help them to be more functional and autonomous. Keeping that in mind, more technological products are combined with houses and devices, which interacts with people and home environment, are very useful. It is a thing, nowadays, smart homes, smart devices and smart cities. Obviously, they are not referring to devices or houses that can think, but they are referring to products that are able to process information. Either a single device or a group of them are creating a network consisting of intergated and embedded system.
Additional file 1: of Clinical evaluation of modified transalveolar sinus floor elevation and osteotome sinus floor elevation in posterior maxillae: study protocol for a randomized controlled trial
Creators: name: Zhao, Xu
name: Gao, Wei
name: Liu, Feng
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents. (PDF 871 kb)
Cosmological Lorentzian Wormholes via Noether symmetry approach
Creators: name: Sanyal, Abhik Kumar
name: Mandal, Ranajit
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Noether symmetry has been invoked to explore the forms of a couple of coupling parameters and the potential appearing in a general scalar-tensor theory of gravity in the background of Robertson-Walker space-time. Exact solutions of Einstein's field equations in the familiar Brans-Dicke, Induced gravity and a General non-minimally coupled scalar-tensor theories of gravity have been found using the conserved current and the energy equation, after being expressed in a set of new variables. Noticeably, the form of the scale factors remains unaltered in all the three cases and represents cosmological Lorentzian wormholes, analogous to the Euclidean ones. While classical Euclidean wormholes requires an imaginary scalar field, the Lorentzian wormhole do not, and the solutions satisfy the weak energy condition.
description: 13 pages. arXiv admin note: text overlap with arXiv:1302.3748 by other authors
Directly visualizing the momentum forbidden dark excitons and their dynamics in atomically thin semiconductors
Creators: name: Madéo, Julien
name: Man, Michael K.L.
name: Sahoo, Chakradhar
name: Campbell, Marshall
name: Pareek, Vivek
name: Wong, E Laine
name: Al Mahboob, Abdullah
name: Chan, Nicholas S.
name: Karmakar, Arka
name: Mariserla, Bala Murali Krishna
name: Li, Xiaoqin
name: Heinz, Tony F.
name: Cao, Ting
name: Dani, Keshav M.
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: excitons

description: Resolving the momentum degree of freedom of excitons – electron-hole pairs bound by the Coulomb attraction in a photoexcited semiconductor, has remained a largely elusive goal for decades. In atomically thin semiconductors, such a capability could probe the momentum forbidden dark excitons, which critically impact proposed opto-electronic technologies, but are not directly accessible via optical techniques. Here, we probe the momentum-state of excitons in a WSe2 monolayer by photoemitting their constituent electrons, and resolving them in time, momentum and energy. We obtain a direct visual of the momentum forbidden dark excitons, and study their properties, including their near-degeneracy with bright excitons and their formation pathways in the energy-momentum landscape. These dark excitons dominate the excited state distribution – a surprising finding that highlights their importance in atomically thin semiconductors.
Solid-State Thermal Energy Storage Using Reversible Martensitic Transformations
Creators: name: Sharar, Darin J.
name: Donovan, Brian F.
name: Warzoha, Ronald J.
name: Wilson, Adam A.
name: Leff, Asher C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The identification and use of reversible Martensitic transformations, typically described as shape memory transformations, as a new class of solid-solid phase change material is experimentally demonstrated here for the first time. To prove this claim, time-domain thermoreflectance, frequency-domain thermoreflectance, and differential scanning calorimetry studies were conducted on commercial NiTi alloys to quantify thermal conductivity and latent heat. Additional Joule-heating experiments demonstrate successful temperature leveling during transient heating and cooling in a simulated environment. Compared to standard solid-solid materials and solid-liquid paraffin, these experimental results show that shape memory alloys provide up to a two order of magnitude higher Figure of Merit. Beyond these novel experimental results, a comprehensive review of >75 binary NiTi and NiTi-based ternary and quaternary alloys in the literature shows that shape memory alloys can be tuned in a wide range of transformation temperatures (from -50 to 330{deg}C), latent heats (from 9.1 to 35.1 J/g), and thermal conductivities (from 15.6 to 28 W/mK). This can be accomplished by changing the Ni and Ti balance, introducing trace elements, and/or by thermomechanical processing. Combining excellent corrosion resistance, formability, high strength and ductility, high thermal performance, and tunability, SMAs represent an exceptional phase change material that circumvents many of the scientific and engineering challenges hindering progress in this field.
description: 13 pages, 4 figures, 1 table
Asteroseismic masses, ages, and core properties of $γ$ Doradus stars using gravito-inertial dipole modes and spectroscopy
Creators: name: Mombarg, Joey S. G.
name: Van Reeth, Timothy
name: Pedersen, May G.
name: Molenberghs, Geert
name: Bowman, Dominic M.
name: Johnston, Cole
name: Tkachenko, Andrew
name: Aerts, Conny
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The asteroseismic modelling of period spacing patterns from gravito-inertial modes in stars with a convective core is a high-dimensional problem. We utilise the measured period spacing pattern of prograde dipole gravity modes (acquiring $Π_0$), in combination with the effective temperature ($T_{\rm eff}$) and surface gravity ($\log g$) derived from spectroscopy, to estimate the fundamental stellar parameters and core properties of 37 $γ~$Doradus ($γ~$Dor) stars whose rotation frequency has been derived from $\textit{Kepler}$ photometry. We make use of two 6D grids of stellar models, one with step core overshooting and one with exponential core overshooting, to evaluate correlations between the three observables $Π_0$, $T_{\rm eff}$, and $\log g$ and the mass, age, core overshooting, metallicity, initial hydrogen mass fraction and envelope mixing. We provide multivariate linear model recipes relating the stellar parameters to be estimated to the three observables ($Π_0$, $T_{\rm eff}$, $\log g$). We estimate the (core) mass, age, core overshooting and metallicity of $γ~$Dor stars from an ensemble analysis and achieve relative uncertainties of $\sim\!10$ per cent for the parameters. The asteroseismic age determination allows us to conclude that efficient angular momentum transport occurs already early on during the main sequence. We find that the nine stars with observed Rossby modes occur across almost the entire main-sequence phase, except close to core-hydrogen exhaustion. Future improvements of our work will come from the inclusion of more types of detected modes per star, larger samples, and modelling of individual mode frequencies.
description: Accepted for publication in MNRAS
Improving the Efficiency of FP-LAPW Calculations
Creators: name: Petersen, Max
name: Wagner, Frank
name: Hufnagel, Lars
name: Scheffler, Matthias
name: Blaha, Peter
name: Schwarz, Karlheinz
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The full-potential linearized augmented-plane wave (FP-LAPW) method is well known to enable most accurate calculations of the electronic structure and magnetic properties of crystals and surfaces. The implementation of atomic forces has greatly increased it's applicability, but it is still generally believed that FP-LAPW calculations require substantial higher computational effort compared to the pseudopotential plane wave (PPW) based methods. In the present paper we analyse the FP-LAPW method from a computational point of view. Starting from an existing implementation (WIEN95 code), we identified the time consuming parts and show how some of them can be formulated more efficiently. In this context also the hardware architecture plays a crucial role. The remaining computational effort is mainly determined by the setup and diagonalization of the Hamiltonian matrix. For the latter, two different iterative schemes are compared. The speed-up gained by these optimizations is compared to the runtime of the ``original'' version of the code, and the PPW approach. We expect that the strategies described here, can also be used to speed up other computer codes, where similar tasks must be performed.
description: 20 pages, 3 figures. Appears in Comp. Phys. Com. Other related publications can be found at http://www.rz-berlin.mpg.de/th/paper.html
Synthesis of Convection Velocity and Turbulence Measurements in Three-Stream Jets
Creators: name: Stuber, Marcie
name: Lowe, Todd
name: Ng, Wing
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Key flow regions linked to jet noise sources are investigated through comparison of convection velocity and turbulence measurements in high speed three-stream nozzles. A time-resolved Doppler global velocimetry (DGV) instrument was applied in the Nozzle Acoustic Test Rig (NATR) at NASA's Aero-Acoustic Propulsion Lab to measure 250 kHz repetition laser scattering signals arising from seeding particles at 32 points in high speed flow. Particle image velocimetry (PIV) measurements previously reported by NASA provided mean velocity and turbulence intensity. Results for convection velocity of the particle concentration field were obtained from the DGV data for three-stream nozzle configurations using a cross-correlation approach. The three-stream cases included an axisymmetric and an asymmetric, offset nozzle configuration. For the axisymmetric case, areas of high convection velocity and turbulence intensity were found to occur 4 to 6 area-equivalent nozzle diameters downstream from the nozzle exit. Comparison of convection velocity between the axisymmetric and offset cases show this same region as having the greatest reduction in convection velocity due to the offset, up to 20% reduction for the offset case compared to the axisymmetric case. These findings suggest this region along the centerline near the end of the potential core is an important area for noise generation with jets and contributes to the noise reductions seen from three-stream offset nozzles.
Symmetries of homogeneous cosmologies
Creators: name: Cotsakis, Spiros
name: Leach, Peter
name: Pantazi, Hara
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We reformulate the dynamics of homogeneous cosmologies with a scalar field matter source with an arbitrary self-interaction potential in the language of jet bundles and extensions of vector fields. In this framework, the Bianchi-scalar field equations become subsets of the second Bianchi jet bundle, $J^2$, and every Bianchi cosmology is naturally extended to live on a variety of $J^2$. We are interested in the existence and behaviour of extensions of arbitrary Bianchi-Lie and variational vector fields acting on the Bianchi variety and accordingly we classify all such vector fields corresponding to both Bianchi classes $A$ and $B$. We give examples of functions defined on Bianchi jet bundles which are constant along some Bianchi models (first integrals) and use these to find particular solutions in the Bianchi total space. We discuss how our approach could be used to shed new light to questions like isotropization and the nature of singularities of homogeneous cosmologies by examining the behaviour of the variational vector fields and also give rise to interesting questions about the `evolution' and nature of the cosmological symmetries themselves.
description: 11 pp, latex, gc style
Hybrid Design Tools - Image Quality Assessment of a Digitally Augmented Blackboard Integrated System
Creators: name: Banias, Ovidiu
name: Milincu, Camil Octavian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computers and Society (cs.CY)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: In the last two decades, Interactive White Boards (IWBs) have been widely available as a pedagogic tool. The usability of these boards for teaching disciplines where complex drawings are needed, we consider debatable in multiple regards. In a previous study, we proposed an alternative to the IWBs as a blackboard augmented with a minimum of necessary digital elements. The current study continues our previous research on hybrid design tools, analyzing the limitations of the developed hybrid system regarding the perceived quality of the images being repeatedly captured, annotated, and reprojected onto the board. We validated the hybrid system by evaluating the quality of the projected and reprojected images over a blackboard, using both objective measurements and subjective human perception in extensive and realistic case studies. Based on the results achieved in the current research, we conclude that the proposed hybrid system provides good quality support for teaching disciplines that require complex drawings and board interaction.
Driving Pressure and Lung Injury in Mechanically Ventilated Patients without Acute Respiratory Distress Syndrome
Creators: name: Suttipong Pearpleum
name: Yutthana Apichatbutr
Publisher: name: Text and Journal Publication
Year: 2021
Subjects: driving pressure
severe lung injury
lung injury score
acute respiratory distress syndrome

description: Vajira Medical Journal, 65, 3, 173-186
Magnetization plateau in S=3/2 antiferromagnetic Heisenberg chain with anisotropy
Creators: name: Sakai, Toru
name: Takahashi, Minoru
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The magnetization process of the S=3/2 antiferromagnetic Heisenberg chain with the single-ion anisotropy D at T=0 is investigated by the exact diagonalization of finite clusters and finite-size scaling analyses. It is found that a magnetization plateau appears at m=1/2 for $D>D_c=0.93 \pm 0.01$. The phase transition with respect to D at D_c is revealed to be the Kosterlitz-Thouless-type. The magnetization curve of the infinite system is also presented for some values of D.
description: 4 pages, Revtex, with 5 eps figures
Channel changes of the Adige River (Eastern Italian Alps) over the last 1000 years and identification of the historical fluvial corridor
Creators: name: Scorpio, Vittoria
name: Surian, Nicola
name: Cucato, Maurizio
name: Prá, Elena Dai
name: Zolezzi, Guido
name: Comiti, Francesco
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Sociology
subject: FOS: Sociology
subject: Inorganic Chemistry

description: A 1:50,000-scale geomorphological map of the Adige/Etsch River valley bottom (NE Italy) is presented. The study area is 115 km long, and it extends between the villages of Merano/Meran and Calliano, including also the terminal segments of 9 major tributaries of the Adige River. Presently, the Adige shows a sinuous to straight morphology owing to massive channelization occurred during the nineteenth century. Fluvial geomorphological features have been mapped through a detailed-scale comparative multi-temporal analysis carried out on several historical maps dating since the eighteenth century, previous thematic maps, geological maps of the Italian ‘CARG’ project, orthophotos (2011) and high – resolution DEMs. The map shows the active river channel, dating to 1803–1805 (before channelization), to 1856-1861 (during channelization) and under present conditions, as well as several paleo-channels dating up to the thirteenth century. The analysis led to define the corridor of historical channel changes, a fundamental tool for river management purposes.
Environmental Assessment of Plug-In Hybrid Electric Vehicles in Michigan: Greenhouse Gas Emissions, Criteria Air Pollutants, and Petroleum Displacement
Creators: name: Keoleian, Gregory A.
name: Kelly, Jarod
name: MacDonald, Jason
name: Camere, Aaron
name: De Monasterio, Caroline
name: Schafer, Allison
Publisher: name: My University
Year: 2011
Subjects: subject: Natural Resources and Environment
subject: Science

description: The environmental and electric utility system impacts from plug-in hybrid electric vehicle (PHEV) infiltration in Michigan were examined from years 2010 to 2030 as part of the Michigan Public Service Commission’s (MPSC) PHEV pilot project. Total fuel cycle energy consumption, greenhouse gas and criteria air pollutant emissions for Michigan’s light duty vehicle fleet were analyzed, as well as gasoline displacement due to the shift to electrified travel. PHEVs consume both liquid fuel and grid electricity for propulsion. While this fueling strategy can significantly reduce gasoline consumption and related emissions, it is important to understand the impacts that these PHEVs have on the electrical system and its associated emissions. A MATLAB® model was developed to quantify the regional emissions and energy use of this interaction for Michigan. Each year the model examined vehicle charging behavior, PHEV sales infiltration, changes to the electric grid, and electricity dispatch. Individual PHEV energy consumption was determined from a database of actual vehicle trips, and scaled to the number of on-road PHEVs. The electricity to charge PHEVs was added to Michigan’s baseline hourly electrical demand and new generating capacity was added to the grid to meet renewable portfolio standards and capacity reserve mandates. Lastly, generating assets were dispatched to serve the load, and total fuel cycle (TFC) emissions were calculated. Several scenarios were developed to capture the range of possible outcomes examining PHEV infiltration, charging behaviors, and future grid mixes. In all scenarios, an increased number of PHEVs led to decreased statewide GHG emissions, ranging from a 0.4% to 10.9% reduction in 2030, and displaced from 0.6 to 9 billion gallons of gasoline from 2010-2030. Under the high PHEV infiltration and using capacity factor dispatch, the emissions intensity of PHEV travel in 2030 for the scenarios examined ranged from 215 to 296 gCO2e per mile (using average allocation). Substituting nuclear generators for some of Michigan’s predominately coal baseload power plants had a large effect on reducing emissions, a 46% reduction in annual electricity sector GHG emissions between 2010 and 2030, and reduced PHEV emissions intensity up to 25% in 2030. Criteria air pollutant emissions were reduced in most scenarios. However, SOX emissions could increase with the addition of PHEVs.
Additional file 1 of Can vegetation index track the interannual variation in gross primary production of temperate deciduous forests?
Creators: name: Liu, Fan
name: Wang, Chuankuan
name: Wang, Xingchang
Publisher: name: figshare
Year: 2021
Subjects: subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Fig. A1 Regressions between annual gross primary production (GPP) and the integral or mean vegetation indices for the growing-season defined by the rate of change in curvature. Fig. A2 Comparisons of phenology metrics extracted from vegetation indices and gross primary production defined by the rate of change in the curvature. Fig. A3 Determination coefficients (R2) of the regression of annual gross primary production (GPP) against the integral vegetation indices (VIs) or mean VIs for the growing-season defined by combining the spring and autumn phenology of different thresholds. Fig. A4 Interannual variation in spring and autumn phenology based on broadband vegetation indices defined by nine thresholds. Fig. A5 Interannual variation in spring and autumn phenology based on MODIS vegetation indices defined by nine thresholds.
title: Introduction_Petite flore mycologique des champignons les plus vulgaires
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Introduction
description: ID_PARA_00310
GRRMHD Simulations of Tidal Disruption Event Accretion Disks around Supermassive Black Holes: Jet Formation, Spectra, and Detectability
Creators: name: Curd, Brandon
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report results from general relativistic radiation MHD (GRRMHD) simulations of a super-Eddington black hole (BH) accretion disk formed as a result of a tidal disruption event (TDE). We consider the fiducial case of a solar mass star on a mildly penetrating orbit disrupted by a supermassive BH of mass $10^6 \, M_\odot$, and consider the epoch of peak fall back rate. We post-process the simulation data to compute viewing angle dependent spectra. We perform a parameter study of the dynamics of the accretion disk as a function of BH spin and magnetic flux, and compute model spectra as a function of the viewing angle of the observer. We also consider detection limits based on the model spectra. We find that an accretion disk with a relatively weak magnetic field around the BH (so-called SANE regime of accretion) does not launch a relativistic jet, whether or not the BH is rotating. Such models reasonably reproduce several observational properties of non-jetted TDEs. The same is also true for a non-rotating BH with a strong magnetic field (MAD regime). One of our simulations has a rapidly rotating BH (spin parameter 0.9) as well as a MAD accretion disk. This model launches a powerful relativistic jet, which is powered by the BH spin energy. It reproduces the high energy emission and jet structure of the jetted TDE Swift J1644+57 surprisingly well. Jetted TDEs may thus correspond to the subset of TDE systems that have both a rapidly spinning BH and MAD accretion.
description: 31 pages, 28 figures
Super-resolution imaging within reach
Creators: name: Perrin, Stephane
name: Badu, Keshia
name: Montgomery, Paul
name: Lecler, Sylvain
Publisher: name: arXiv
Year: 2018
Subjects: subject: Physics Education (physics.ed-ph)
subject: Applied Physics (physics.app-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: Although several optical techniques have been recently developed in order to overcome the resolution limit in microscopy, the imaging of sub-wavelength features is still a real challenge. In practise, super-resolution techniques remain difficult to build or are photo-toxic for the biological samples. However, microsphere-assisted microscopy has recently made super-resolution imaging accessible to scientists (e.g. optical metrologists, engineers and biologists). This paper presents an easy-to-implement optical setup to perform full-field and contactless super-resolution measurements of nanostructured media or biological elements. For this purpose, a classical microscope was enhanced by introducing a transparent microsphere. We show that this rather simple approach makes it possible to achieve a lateral resolution of 200 nm in air, i.e. the visualization of feature sizes of 100 nm.
E-B Mixing in T-violating Superconductors
Creators: name: Goryo, J.
name: Ishikawa, K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze time reversal violating processes of the p-wave superconductor. The Landau-Ginzuburg effective action has an induced T-violating term of electromagnetic potentials which resembles the Chern-Simons term and causes a mixing between the electric field and the magnetic field. Several T-violating electromagnetic phenomena caused by this term, such as unusual Meissner effect, Hall effect without magnetic field, and Farady rotation without magnetic field are investigated.
description: 10 pages, no figures, LaTex. The final version can be obtained from "http://wwwsoc.nacsis.ac.jp/jps/jpsj/index.html"
Bond disorder, frustration and polymorphism in the spontaneous crystallization of a polymer melt
Creators: name: Giuntoli, Andrea
name: Bernini, Sebastiano
name: Leporini, Dino
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The isothermal, isobaric spontaneous crystallization of a supercooled polymer melt is investigated by MD simulation of an ensemble of fully-flexible linear chains. Frustration is introduced via two incommensurate length scales set by the bond length and the position of the minimum of the non-bonding potential. Marked polymorphism with considerable bond disorder, distortions of both the local packing and the global monomer arrangements is observed. The analyses in terms of: i) orientational order parameters characterizing the global and the local order and ii) the angular distribution of the next-nearest neighbors of a monomer reach the conclusion that the polymorphs are arranged in distorted Bcc-like lattices.
Wet Weather Benchmarking Report
Creators: name: Bulkley, Johnathan
name: LeFevre, Danielle
name: Clark, Hilton
name: Samples, Amy
name: Berns, Ria
Publisher: name: My University
Year: 2009
Subjects: subject: Natural Resources and Environment
subject: Science

description: In the fall of 2008, the Michigan Department of Environmental Quality (MI DEQ) Water Bureau Director established a wet weather program designed to improve the understanding of rules, policies and regulations related to the monitoring, control and permitting of wet weather events and wet weather discharges. The program created five Water Bureau staff work groups, tasked with identifying and benchmarking more appropriate ways and means to control and reduce adverse surface water quality impacts of wet weather discharge flows.
Distributed Nesterov gradient methods over arbitrary graphs
Creators: name: Xin, Ran
name: Jakovetic, Dusan
name: Khan, Usman A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this letter, we introduce a distributed Nesterov method, termed as $\mathcal{ABN}$, that does not require doubly-stochastic weight matrices. Instead, the implementation is based on a simultaneous application of both row- and column-stochastic weights that makes this method applicable to arbitrary (strongly-connected) graphs. Since constructing column-stochastic weights needs additional information (the number of outgoing neighbors at each agent), not available in certain communication protocols, we derive a variation, termed as FROZEN, that only requires row-stochastic weights but at the expense of additional iterations for eigenvector learning. We numerically study these algorithms for various objective functions and network parameters and show that the proposed distributed Nesterov methods achieve acceleration compared to the current state-of-the-art methods for distributed optimization.
Josephson Frequency Singularity in the Noise of Normal Metal-Superconductor Junctions
Creators: name: Lesovik, Gordey B.
name: Martin, Thierry
name: Torres, Julien
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A singularity at the Josephson frequency in the noise spectral density of a disordered normal metal -- superconductor junction is predicted for bias voltages below the superconducting gap. The non-stationary Aharonov-Bohm effect, recently introduced for normal metals, is proposed as a tool for detecting this singularity. In the presence of a harmonic external field, the derivative of the noise with respect to the voltage bias reveals jumps when the applied frequency is commensurate with the Josephson frequency associated with this bias. The height of these jumps is non-monotonic in the amplitude of the periodic field. The superconducting flux quantum enters this dependence. Additional singularities in the frequency dependent noise are predicted above gap.
description: 4 pages, 2 figures, revised version
Understanding Spectral Variability and Time Lags in Accreting Black Holes
Creators: name: Poutanen, Juri
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I review the temporal/spectral data of accreting black hole sources paying most attention to the properties of the temporal variability such as photon energy dependent auto- and cross-correlation functions, average shot profiles and hardness ratios, and the Fourier frequency dependent time/phase lags. These statistics characterize spectral changes at short time scales that are otherwise impossible to study by direct spectral analysis. The data provide strong constraints on the theoretical models for X-ray production in accreting black holes. Models for the spectral variability of the Comptonized component are briefly reviewed. It is also shown that Compton reflection can have significant impact on the observed temporal characteristics.
description: 14 pages; Invited review at the 33rd COSPAR Scientific Assembly, Warsaw, Poland, July, 2000. Accepted for publication in Advances in Space Research
On a question related to bounded approximate identities of ideals in Banach algebras
Creators: name: Fozouni, Mohammad
Publisher: name: arXiv
Year: 2018
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46H05, 22D15

description: In this paper we give an example of a Banach algebra $A$ and a closed ideal $I$ of $A$ such that the multiplier algebra of $I$ is equal to $A$ but $I$ does not have any bounded approximate identity. In the case that $I$ has an approximate identity, we give a necessary condition on $I$ for which $A=\mathcal{M}(I)$, where $\mathcal{M}(I)$ denotes the multiplier algebra of $I$. Finally, as a corollary of our results, we show that the Fourier algebra of an amenable group is strictly dense in the Fourier-Stieltjes algebra.
description: 6 pages, to appear in "Rendiconti del Circolo Matematico di Palermo Series 2"
Time-dependent density functional theory for a unified description of ultrafast dynamics: pulsed light, electrons, and atoms in crystalline solids
Creators: name: Yamada, Atsushi
name: Yabana, Kazuhiro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have developed a novel multiscale computational scheme to describe coupled dynamics of light electromagnetic field with electrons and atoms in crystalline solids, where first-principles molecular dynamics based on time-dependent density functional theory is used to describe the microscopic dynamics. The method is applicable to wide phenomena in nonlinear and ultrafast optics. To show usefulness of the method, we apply it to a pump-probe measurement of coherent phonon in diamond where a Raman amplification takes place during the propagation of the probe pulse.
A Two-dimensional Infinte System Density Matrix Renormalization Group Algorithm
Creators: name: Henelius, Patrik
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: It has proved difficult to extend the density matrix renormalization group technique to large two-dimensional systems. In this Communication I present a novel approach where the calculation is done directly in two dimensions. This makes it possible to use an infinite system method, and for the first time the fixed point in two dimensions is studied. By analyzing several related blocking schemes I find that there exists an algorithm for which the local energy decreases monotonically as the system size increases, thereby showing the potential feasibility of this method.
description: 5 pages, 6 figures
Symmetry, Singularities and Integrability in Complex Dynamics IV: Painleve Integrability of Isotropic Cosmologies
Creators: name: Miritzis, John
name: Leach, Peter
name: Cotsakis, Spiros
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We apply the results of singularity analysis to the isotropic cosmological models in general relativity and string theory with a variety of matter terms. For some of these models the standard Painlevé test is sufficient to demonstrate integrability or nonintegrability in the sense of Painlevé. For others of these models it is necessary to use a less algorithmic procedure.
description: 9 pp, latex, gc style, to appear in Grav.Cosm