cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Suppression of the spin waves nonreciprocity due to interfacial Dzyaloshinskii Moriya interaction by lateral confinement in magnetic nanostructures
Creators: name: Tacchi, S.
name: Silvani, R.
name: Kuepferling, M.
name: Scarioni, A. Fernandez
name: Sievers, S.
name: Schumacher, H. W.
name: Darwin, E.
name: Syskaki, M. -A.
name: Jakob, G.
name: Klaui, M.
name: Carlotti, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Despite the huge recent interest towards chiral magnetism related to the interfacial Dzyaloshinskii Moriya interaction (iDMI) in layered systems, there is a lack of experimental data on the effect of iDMI on the spin waves eigenmodes of laterally confined nanostructures. Here we exploit Brillouin Light Scattering (BLS) to analyze the spin wave eigenmodes of non-interacting circular and elliptical dots, as well as of long stripes, patterned starting from a Pt(3.4 nm)/CoFeB(0.8 nm) bilayer, with lateral dimensions ranging from 100 nm to 400 nm. Our experimental results, corroborated by micromagnetic simulations based on the GPU-accelerated MuMax3 software package, provide evidence for a strong suppression of the frequency asymmetry between counter-propagating spin waves (corresponding to either Stokes or anti-Stokes peaks in BLS spectra), when the lateral confinement is reduced from 400 nm to 100 nm, i.e. when it becomes lower than the light wavelength. Such an evolution reflects the modification of the spin wave character from propagating to stationary and indicates that the BLS based method of quantifying the i-DMI strength from the frequency difference of counter propagating spin waves is not applicable in the case of magnetic elements with lateral dimension below about 400 nm.
description: Accepted for pubblication by: Physical Review B
title: Zufluchtsort für königliche Vagabonden; [1848?]
title: 1. Erzählt doch liebe Pathen, was ist denn Euch geschehn, Dass fern von Euern Landen, Ihr nun müsst betteln gehn? 2. Ich braver Mann hab' nur mein Volk betrogen; Bin dann mit Weib und Kind davon gezogen. 3. Zum neuen Feldmarschall hatt' der König mich ernannt; Drauf liess ich Probe schiessen; nun hab'n sie mich verbannt. 4. Einst hab'n wir Euch gut aufgenommen, Doch so müsst Ihr nicht wieder kommen!
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Vorlageform der Veröffentlichungsangabe: in Commission bei B. J. Hirsch in Berlin. Druck v. C. Weber, Hamburg.
The GALAH Survey: Chemical Clocks
Creators: name: Hayden, Michael R.
name: Sharma, Sanjib
name: Bland-Hawthorn, Joss
name: Spina, Lorenzo
name: Buder, Sven
name: Asplund, Martin
name: Casey, Andrew R.
name: De Silva, Gayandhi M.
name: D'Orazi, Valentina
name: Freeman, Ken C.
name: Kos, Janez
name: Lewis, Geraint F.
name: Lin, Jane
name: Lind, Karin
name: Martell, Sarah L.
name: Schlesinger, Katharine J.
name: Simpson, Jeffrey D.
name: Zucker, Daniel B.
name: Zwitter, Tomaz
name: Chen, Boquan
name: Cotar, Klemen
name: Feuillet, Diane
name: Horner, Jonti
name: Joyce, Meridith
name: Nordlander, Thomas
name: Stello, Dennis
name: Tepper-Garcia, Thorsten
name: Ting, Yuan-sen
name: Wang, Purmortal
name: Wittenmyer, Rob
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Previous studies have found that the elemental abundances of a star correlate directly with its age and metallicity. Using this knowledge, we derive ages for a sample of 250,000 stars taken from GALAH DR3 using only their overall metallicity and chemical abundances. Stellar ages are estimated via the machine learning algorithm $XGBoost$, using main sequence turnoff stars with precise ages as our input training set. We find that the stellar ages for the bulk of the GALAH DR3 sample are accurate to 1-2 Gyr using this method. With these ages, we replicate many recent results on the age-kinematic trends of the nearby disk, including the age-velocity dispersion relationship of the solar neighborhood and the larger global velocity dispersion relations of the disk found using $Gaia$ and GALAH. The fact that chemical abundances alone can be used to determine a reliable age for a star have profound implications for the future study of the Galaxy as well as upcoming spectroscopic surveys. These results show that the chemical abundance variation at a given birth radius is quite small, and imply that strong chemical tagging of stars directly to birth clusters may prove difficult with our current elemental abundance precision. Our results highlight the need of spectroscopic surveys to deliver precision abundances for as many nucleosynthetic production sites as possible in order to estimate reliable ages for stars directly from their chemical abundances. Applying the methods outlined in this paper opens a new door into studies of the kinematic structure and evolution of the disk, as ages may potentially be estimated for a large fraction of stars in existing spectroscopic surveys. This would yield a sample of millions of stars with reliable age determinations, and allow precise constraints to be put on various kinematic processes in the disk, such as the efficiency and timescales of radial migration.
description: 13 pages, 15 figures, submitted to MNRAS
Azimuthally Resolved X-Ray Spectroscopy to the Edge of the Perseus Cluster
Creators: name: Urban, O.
name: Simionescu, A.
name: Werner, N.
name: Allen, S. W.
name: Ehlert, S.
name: Zhuravleva, I.
name: Morris, R. G.
name: Fabian, A. C.
name: Mantz, A.
name: Nulsen, P. E. J.
name: Sanders, J. S.
name: Takei, Y.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results from extensive, new observations of the Perseus Cluster of galaxies, obtained as a Suzaku Key Project. The 85 pointings analyzed span eight azimuthal directions out to 2 degrees = 2.6 Mpc, to and beyond the virial radius r_200 ~ 1.8 Mpc, offering the most detailed X-ray observation of the intracluster medium (ICM) at large radii in any cluster to date. The azimuthally averaged density profile for r>0.4r_200 is relatively flat, with a best-fit power-law index of 1.69+/-0.13 significantly smaller than expected from numerical simulations. The entropy profile in the outskirts lies systematically below the power-law behavior expected from large-scale structure formation models which include only the heating associated with gravitational collapse. The pressure profile beyond ~0.6r_200 shows an excess with respect to the best-fit model describing the SZ measurements for a sample of clusters observed with Planck. The inconsistency between the expected and measured density, entropy, and pressure profiles can be explained primarily by an overestimation of the density due to inhomogeneous gas distribution in the outskirts; there is no evidence for a bias in the temperature measurements within the virial radius. We find significant differences in thermodynamic properties of the ICM at large radii along the different arms. Along the cluster minor axis, we find a flattening of the entropy profiles outside ~0.6r_200, while along the major axis, the entropy rises all the way to the outskirts. Correspondingly, the inferred gas clumping factor is typically larger along the minor than along the major axis.
description: submitted to MNRAS
Characterizing the Spectral Structure of Weak Impulsive Narrowband Quiet Sun Emissions
Creators: name: Mondal, Surajit
name: Oberoi, Divya
name: Biswas, Ayan
name: Kansabanik, Devojyoti
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Weak Impulsive Narrowband Quiet Sun Emissions (WINQSEs) are a newly discovered class of radio emission from the solar corona. These emissions are characterized by their extremely impulsive, narrowband and ubiquitous nature. We have systematically been working on their detailed characterization, including their strengths, morphologies, temporal characteristics, energies, etc. This work is the next step in this series and focuses on the spectral nature of WINQSEs. Given that their strength is only a few percent of the background solar emission, we have adopted an extremely conservative approach to reliably identify WINQSES. Only a handful of WINQSEs meet all of our stringent criteria. Their flux densities lie in the 20 $-$ 50 Jy range and they have compact morphologies. For the first time, we estimate their bandwidths and find them to be less than 700 kHz, consistent with expectations based on earlier observations. Interestingly, we also find similarities between the spectral nature of WINQSEs and the solar radio spikes. This is consistent with our hypothesis that the WINQSEs are the weaker cousins of the type-III radio bursts and are likely to be the low-frequency radio counterparts of the nanoflares, originally hypothesized as a possible explanation for coronal heating.
description: Accepted for publication in the Astrophysical Journal
Unraveling Adaptation in Eukaryotic Pathways: Lessons from Protocells
Creators: name: De Palo, Giovanna
name: Endres, Robert G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences

description: Eukaryotic adaptation pathways operate within wide-ranging environmental conditions without stimulus saturation. Despite numerous differences in the adaptation mechanisms employed by bacteria and eukaryotes, all require energy consumption. Here, we present two minimal models showing that expenditure of energy by the cell is not essential for adaptation. Both models share important features with large eukaryotic cells: they employ small diffusible molecules and involve receptor subunits resembling highly conserved G-protein cascades. Analyzing the drawbacks of these models helps us understand the benefits of energy consumption, in terms of adjustability of response and adaptation times as well as separation of cell-external sensing and cell-internal signaling. Our work thus sheds new light on the evolution of adaptation mechanisms in complex systems.
description: accepted for publication in PLoS Computational Biology; 19 pages, 8 figures
Coagulation-Fragmentation Equilibrium for Charged Dust: Abundance of Submicron Grains Increases Dramatically in Protoplanetary Disks
Creators: name: Akimkin, Vitaly
name: Ivlev, Alexei V.
name: Caselli, Paola
name: Gong, Munan
name: Silsbee, Kedron
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Dust coagulation in protoplanetary disks is not straightforward and is subject to several slow-down mechanisms, such as bouncing, fragmentation and radial drift to the star. Furthermore, dust grains in UV-shielded disk regions are negatively charged due to collisions with the surrounding electrons and ions, which leads to their electrostatic repulsion. For typical disk conditions, the relative velocities between micron-size grains are small and their collisions are strongly affected by the repulsion. On the other hand, collisions between pebble-size grains can be too energetic, leading to grain fragmentation. The aim of the present paper is to study a combined effect of the electrostatic and fragmentation barriers on dust evolution. We numerically solve the Smoluchowski coagulation-fragmentation equation for grains whose charging occurs under conditions typical for the inner disk regions, where thermal ionization operates. We find that dust fragmentation efficiently resupplies the population of small grains under the electrostatic barrier. As a result, the equilibrium abundance of sub-micron grains is enhanced by several orders of magnitude compared to the case of neutral dust. For some conditions with fragmentation velocities $\sim 1$ m s$^{-1}$, macroscopic grains are completely destroyed.
description: accepted for publication in ApJ
Finite presentations for stated skein algebras and lattice gauge field theory
Creators: name: Korinman, Julien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Algebra (math.QA)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We provide finite presentations for stated skein algebras and deduce that those algebras are Koszul and that they are isomorphic to the quantum moduli algebras appearing in lattice gauge field theory, generalizing previous results of Bullock, Frohman, Kania-Bartoszynska and Faitg.
Nabuchodonosor, der Minister der Zukunft; [1848]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Vorlageform der Veröffentlichungsangabe: Verlag v. J. A. Wagner Nr. 2. neu kl. Hirschgr. in Frft a/m.
Spin-wave-induced corrections to the electronic density of states in metallic ferromagnets
Creators: name: Ricottone, Alessandro
name: Danon, Jeroen
name: Brouwer, Piet W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the correction to the electronic density of states in a disordered ferromagnetic metal induced by spin-wave mediated interaction between the electrons. Our calculation is valid for the case that the exchange splitting in the ferromagnet is much smaller than the Fermi energy, but we make no assumption on the relative magnitude of the exchange splitting and the elastic electronic scattering time. In the "clean limit", where the exchange splitting is much larger than the electronic scattering rate, we find a correction with a T^{d/2} temperature dependence, where d is the effective dimensionality of the ferromagnet. In the opposite "dirty limit" the density-of-states correction is a non-monotonous function of energy and temperature.
description: 8 pages, 4 figures
Agrobiodiversity Conservation as a Coping Strategy: Adapting to Climate Change in the Northern Highlands of Bolivia
Creators: name: Baldinelli, Giulia Maria
Publisher: name: Columbia University
Year: 2014
Subjects: Aymara Indians--Agriculture
Agrobiodiversity
Agriculture
Sustainability
Climatic changes

description: This article is the result of my observations in two Aymara communities of the Northern Bolivian Altiplano, where I am collecting data for my PhD thesis. My thesis aims to explore the connections between on-farm conservation of local crop varieties and migration of Aymara people away from their communities of origin in the Altiplano to urban areas. While studying the conservation of agrobiodiversity performed by Bolivian farmers, I investigated the use of different crop varieties, conserved by indigenous people, in response to climate change. The consequences of climate change are evident in the rural areas of the Altiplano Norte: prolonged droughts, followed by heavy precipitations and floods. Agriculture is severely affected by such extreme climatic events and the response of the farmers varies. In this article, I focus on a possible adaptation approach enabled by a strategic use of the numerous crop varieties that many Aymara farmers still own. Although the relevant knowledge is slowly being lost, some agrobiodiversity “champions” still hold it and use it to adapt sustainably to new climatic conditions. Research about the agronomic characteristics and the use of local varieties is still needed to provide indigenous farmers with further options to face environmental and climatic change in the Altiplano Norte.
title: (Cäsperle.) Gestrenger Herr, drausen steht ein Reichs-commissionnarius und bittet geffälligst Gehör! (Ritter Schwarzundgelb.) Er soll mich ... Er soll zum Teufel geh'n, von meiner Lieblings speicen los's i mich nimmer bringen!; [1848]
title: (Siehe Stenogr. Bericht No. 109)
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Vorlageform der Veröffentlichungsangabe: Verlag v. Louis Riesbeck in Offenbach a/m.
Additional file 2 of Strategies and tools to learn from work that goes well within healthcare patient safety practices: a mixed methods systematic review
Creators: name: Birkeli, Gørill
name: Lindahl, Anne Karin
name: Hammersbøen, Åse Marit
name: Deilkås, Ellen Catharina Tveter
name: Ballangrud, Randi
Publisher: name: figshare
Year: 2025
Subjects: Space Science
Medicine
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 2.
NAVIS.one: Challenges and Opportunities for RSE and RDM by designing a common web application from a 1990s online database
Creators: name: M.Sc., Florian Thiery
name: FSA, Allard Mees
Publisher: name: Zenodo
Year: 2022
Subjects: Linked Open Data
Ships

description: Although the current situation in archaeology still shows a clear predominance of relational databases, the relevance of LOD and the Semantic Web in the Digital Humanities has increased substantially. Enhancing SQL databases by applying LOD technologies enables the application of the RDF standard, semantic modelling, interlinking of data, and Open Access by offering SPARQL endpoints to create FAIR Linked Open Usable Data. Creating a new infrastructure, an adapted data model, and the implementation of interactive web applications based on legacy systems causes challenges for Research Software Engineering (RSE) and Research Data Management (RDM) issues. This talk will demonstrate the example of NAVIS ONE. The NAVIS Ship Databases 1-3 at the RGZM cover ancient ships (< AD 1200). The European Union funded the NAVIS projects, and its research community consisted of scientists from more than ten countries. NAVIS I (1996-1999) comprises shipwrecks, reconstructions and models, NAVIS II (1999-2001) focuses on ancient ship depictions on objects, and NAVIS III (2002) is related to ships on Roman coins. Moreover, the NAVIS ship databases enclose terms organised in controlled vocabularies, i.e. NAVIS I: thesauri of ship components and wreck-specific thesauri; NAVIS II: thesauri of ship components and their properties, objects keywords, dating, material as well as techniques; NAVIS III: thesauri of emperors, mints, coin types and ship features. Designing a common web app causes challenges in merging three different individual MS Access data models focussing on wrecks, models, reconstructions and depictions of archaeological objects and artefacts, especially coins, in a common data model based on PostgreSQL. Furthermore, transforming, cleaning, validating and normalising data is a highly elaborate task. These refined data enable opportunities in Semantic Web applications, LOD
 and community work, e.g. NFDI4Objects TRAILs. Publishing data in the LOD hub archaeology.link connects them within the LOD Cloud, e.g. by interlinking ARS in NAVIS ONE and in ARS3D as well as iDAI.objects and entities of the Wikidata Knowledge Graph; thesauri can be published via a hub for authority files and community-driven vocabularies: DANTE; Nomisma can be used to share coins as a domain-specific hub.
Letzte Gastrolle eines Commödianten vom Nationaltheater zu St. Paul; [1848]
Creators: name: Scherenberg, Hermann
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Flugblatt mit Karikatur auf die Teilnahme des Abgeordneten Robert Blum am Barrikadenkampf in Wien
XQR-30: Black Hole Masses and Accretion Rates of 42 z>6 Quasars
Creators: name: Mazzucchelli, C.
name: Bischetti, M.
name: D'Odorico, V.
name: Feruglio, C.
name: Schindler, J. -T.
name: Onoue, M.
name: Bañados, E.
name: Becker, G. D.
name: Bian, F.
name: Carniani, S.
name: Decarli, R.
name: Eilers, A. -C.
name: Farina, E. P.
name: Gallerani, S.
name: Lai, S.
name: Meyer, R. A.
name: Rojas-Ruiz, S.
name: Satyavolu, S.
name: Venemans, B. P.
name: Wang, F.
name: Yang, J.
name: Zhu, Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present bolometric luminosities, black hole masses and Eddington ratios for 42 luminous quasars at z>6 using high signal-to-noise ratio VLT/X-Shooter spectra, acquired in the enlarged ESO Large Programme XQR-30. In particular, we derive bolometric luminosities from the rest-frame 3000 A, luminosities using a bolometric correction from the literature, and the black hole masses by modelling the spectral regions around the CIV 1549A and the MgII 2798A emission lines, with scaling relations calibrated in the local universe. We find that the black hole masses derived from both emission lines are in the same range, and the scatter of the measurements agrees with expectations from the scaling relations. The MgII-derived masses are between ~(0.8-12) x 10^9 Msun, and the derived Eddington ratios are within ~0.13-1.73, with a mean (median) of 0.84 (0.72). By comparing the total sample of quasars at z>5.8, from this work and from the literature, to a bolometric luminosity distribution-matched sample at z~1.5, we find that quasars at high redshift host slightly less massive black holes which accrete slightly more rapidly than at lower-z, with a difference in the mean Eddington ratios of the two samples of ~0.27, in agreement with recent literature work.
description: 9 pages; 5 figures; accepted for publication in A&A
The horofunction boundary of a Gromov hyperbolic space
Creators: name: Arosio, Leandro
name: Fiacchi, Matteo
name: Gontard, Sebastien
name: Guerini, Lorenzo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We highlight a condition, the approaching geodesics property, on a proper geodesic Gromov hyperbolic metric space, which implies that the horofunction compactification is topologically equivalent to the Gromov compactification. It is known that this equivalence does not hold in general. We prove using rescaling techniques that the approaching geodesics property is satisfied by bounded strongly pseudoconvex domains of $\mathbb{C}^q$ endowed with the Kobayashi metric. We also show that bounded convex domains of $\mathbb{C}^q$ with boundary of finite type in the sense of D'Angelo satisfy a weaker property, which still implies the equivalence of the two said compactifications. As a consequence we prove that on those domains big and small horospheres as defined by Abate coincide. Finally we generalize the classical Julia's lemma, giving applications to the dynamics of non-expanding maps.
Post-Markovian quantum master equations from classical environment fluctuations
Creators: name: Budini, Adrian A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we demonstrate that two commonly used phenomenological post-Markovian quantum master equations can be derived without using any perturbative approximation. A system coupled to an environment characterized by self-classical configurational fluctuations, the latter obeying a Markovian dynamics, defines the underlying physical model. Both Shabani-Lidar equation [A. Shabani and D. A. Lidar, Phys. Rev. A 71, 020101(R) (2005)] and its associated approximated integro-differential kernel master equation are obtained by tracing out two different bipartite Markovian Lindblad dynamics where the environment fluctuations are taken into account by an ancilla system. Furthermore, conditions under which the non-Markovian system dynamics can be unravelled in terms of an ensemble of measurement trajectories are found. In addition, a non-Markovian quantum jump approach is formulated. Contrary to recent analysis [L. Mazzola, E. M. Laine, H. P. Breuer, S. Maniscalco, and J. Piilo, Phys. Rev. A 81, 062120 (2010)], we also demonstrate that these master equations, even with exponential memory functions, may lead to non-Markovian effects such as an environment-to-system backflow of information if the Hamiltonian system does not commutate with the dissipative dynamics.
description: 13 pages, 4 figures
Zeeman field-induced two-dimensional Weyl semimetal phase in cadmium arsenide
Creators: name: Guo, Binghao
name: Miao, Wangqian
name: Huang, Victor
name: Lygo, Alexander C.
name: Dai, Xi
name: Stemmer, Susanne
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a topological phase transition in quantum-confined cadmium arsenide (Cd3As2) thin films under an in-plane Zeeman field when the Fermi level is tuned into the topological gap via an electric field. Symmetry considerations in this case predict the appearance of a two-dimensional Weyl semimetal (2D WSM), with a pair of Weyl nodes of opposite chirality at charge neutrality that are protected by space-time inversion (C2T) symmetry. We show that the 2D WSM phase displays unique transport signatures, including saturated resistivities on the order of h/e^2 that persist over a range of in-plane magnetic fields. Moreover, applying a small out-of-plane magnetic field, while keeping the in-plane field within the stability range of the 2D WSM phase, gives rise to a well-developed odd integer quantum Hall effect, characteristic of degenerate, massive Weyl fermions. A minimal four-band k.p model of Cd3As2, which incorporates first-principles effective g factors, qualitatively explains our findings.
description: Accepted for publication in Physical Review Letters
Tidal truncation of circumplanetary disks fails above a critical disk aspect ratio
Creators: name: Martin, Rebecca G.
name: Armitage, Philip J.
name: Lubow, Stephen H.
name: Price, Daniel J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We use numerical simulations of circumplanetary disks to determine the boundary between disks that are radially truncated by the tidal potential, and those where gas escapes the Hill sphere. We consider a model problem, in which a coplanar circumplanetary disk is resupplied with gas at an injection radius smaller than the Hill radius. We evolve the disk using the PHANTOM Smoothed Particle Hydrodynamics code until a steady-state is reached. We find that the most significant dependence of the truncation boundary is on the disk aspect ratio $H/R$. Circumplanetary disks are efficiently truncated for $H/R \lesssim 0.2$. For $H/R \simeq 0.3$, up to about half of the injected mass, depending on the injection radius, flows outwards through the decretion disk and escapes. As expected from analytic arguments, the conditions ($H/R$ and Shakura-Sunyaev $α$) required for tidal truncation are independent of planet mass. A simulation with larger $α=0.1$ shows stronger outflow than one with $α=0.01$, but the dependence on transport efficiency is less important than variations of $H/R$. Our results suggest two distinct classes of circumplanetary disks: tidally truncated thin disks with dust-poor outer regions, and thicker actively decreting disks with enhanced dust-to-gas ratios. Applying our results to the PDS 70c system, we predict a largely truncated circumplanetary disk, but it is possible that enough mass escapes to support an outward flow of dust that could explain the observed disk size.
description: Accepted for publication in ApJ
ZigBee Based Wireless Data Acquisition Using LabVIEW for Implementing Smart Driving Skill Evaluation System
Creators: name: John, Mohit
name: JosephPalai, Arun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The Smart Driving Skill Evaluation (SDSE) System presented in this paper expedite the testing of candidates aspiring for a driving license in a more efficient and transparent manner, as compared to the present manual testing procedure existing in most parts of Asia and Pacific region. The manual test procedure is also subjected to multiple limitations like time consuming, costly and heavily controlled by the experience of examiner in conducting the test. This technological solution is developed by customizing 8051 controller based embedded system and LabVIEW based virtual instrument. The controller module senses the motion of the test vehicle on the test track referred to as zero rpm measurement and the LabVIEW based virtual instrument provides a Graphical User Interface for remote end monitoring of the sensors embedded on the test track. The proposed technological solution for the automation of existing manual test process enables the elimination of human intervention and improves the driving test accuracy while going paperless with Driving Skill Evaluation System. As a contribution to the society this technological solution can reduce the number of road accidents because most accidents results from lack of planning, anticipation and control which are highly dependent on driving skill.
description: 19 pages
The Return of Large Dams to the Development Agenda: A Post-Development Critique
Creators: name: Pearse-Smith, Scott W.D.
Publisher: name: Columbia University
Year: 2014
Subjects: Economic development
Natural resources
Dams--Economic aspects
Regional planning
Water resources development--Management
Economics

description: Large dams are making a comeback. Large dams reflect an outdated development paradigm narrowly focused on economic growth through modernization. This article employs a post-development lens to highlight three biases of the narrow development perspective that underlies large dams. First, it views rivers, and nature more generally, as an unrealized source of economic growth and an input to production. Second, it is blind to distributional impacts and is resultantly inequitable: the benefits of large dams are concentrated in the hands of the wealthy, while conditions for the poor do not improve and often worsen. Third, it disempowers those supposedly being developed by de-politicizing the development decisions to pursue large dam projects. Each of these biases is illustrated by reference to the Mekong River Basin’s experience with large dam development. It is concerning, therefore, that large dams seem to be making a resurgence in Asia, Africa and South America, and are once again receiving World Bank support. This article serves as a reminder of why large dams do not deliver equitable development and faded from the development agenda at the turn of the century.
A VERITAS/Breakthrough Listen Search for Optical Technosignatures
Creators: name: Acharyya, Atreya
name: Adams, Colin
name: Archer, Avery
name: Bangale, Priyadarshini
name: Batista, Pedro
name: Benbow, Wystan
name: Brill, Aryeh
name: Capasso, M
name: Errando, Manel
name: Falcone, Abraham
name: Feng, Qi
name: Finley, John
name: Foote, Gregory
name: Fortson, Lucy
name: Furniss, Amy
name: Griffin, Sean
name: Hanlon, William
name: Hanna, David
name: Hervet, Olivier
name: Hinrichs, Claire
name: Hoang, John
name: Holder, Jamie
name: Humensky, T.
name: Jin, Weidong
name: Kaaret, Philip
name: Kertzman, Mary P.
name: Kherlakian, Maria
name: Kieda, David
name: Kleiner, Tobias
name: Korzoun, Nikolas
name: Kumar, Sajan
name: Lang, Mark
name: Lundy, Matthew
name: Maier, Gernot
name: McGrath, Conor
name: Millard, Matthew
name: Miller, Hayden
name: Millis, John
name: Mooney, Connor
name: Moriarty, Patrick
name: Mukherjee, Reshmi
name: O'Brien, Stephan
name: Ong, Rene A.
name: Pohl, Martin
name: Pueschel, Elisa
name: Quinn, John
name: Ragan, Kenneth J.
name: Reynolds, Paul
name: Ribeiro, Deivid
name: Roache, Emmet Thomas
name: Ryan, Jamie
name: Sadeh, Iftach
name: Saha, Lab
name: Santander, Marcos
name: Sembroski, Glenn H
name: Shang, Ruo
name: Tak, Donggeun
name: Talluri, Anjana
name: Tucci, James
name: Vazquez, Nico
name: Williams, David
name: Wong, Sam
name: Woo, Jooyun
name: DeBoer, David
name: Isaacson, Howard
name: de Pater, Imke
name: Price, Danny
name: Siemion, Andrew
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Breakthrough Listen Initiative is conducting a program using multiple telescopes around the world to search for "technosignatures": artificial transmitters of extraterrestrial origin from beyond our solar system. The VERITAS Collaboration joined this program in 2018, and provides the capability to search for one particular technosignature: optical pulses of a few nanoseconds duration detectable over interstellar distances. We report here on the analysis and results of dedicated VERITAS observations of Breakthrough Listen targets conducted in 2019 and 2020 and of archival VERITAS data collected since 2012. Thirty hours of dedicated observations of 136 targets and 249 archival observations of 140 targets were analyzed and did not reveal any signals consistent with a technosignature. The results are used to place limits on the fraction of stars hosting transmitting civilizations. We also discuss the minimum-pulse sensitivity of our observations and present VERITAS observations of CALIOP: a space-based pulsed laser onboard the CALIPSO satellite. The detection of these pulses with VERITAS, using the analysis techniques developed for our technosignature search, allows a test of our analysis efficiency and serves as an important proof-of-principle.
description: 15 pages, 7 figures
The Close Binary Properties of Massive Stars in the Milky Way and Low-Metallicity Magellanic Clouds
Creators: name: Moe, Maxwell
name: Di Stefano, Rosanne
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In order to understand the rates and properties of Type Ia and Type Ib/c supernovae, X-ray binaries, gravitational wave sources, and gamma ray bursts as a function of galactic environment and cosmic age, it is imperative that we measure how the close binary properties of O and B-type stars vary with metallicity. We have studied eclipsing binaries with early-B main-sequence primaries in three galaxies with different metallicities: the Large and Small Magellanic Clouds (LMC and SMC, respectively) as well as the Milky Way (MW). The observed fractions of early-B stars which exhibit deep eclipses 0.25 < Delta(m) (mag) < 0.65 and orbital periods 2 < P (days) < 20 in the MW, LMC, and SMC span a narrow range of (0.7-1.0)%, which is a model independent result. After correcting for geometrical selection effects and incompleteness toward low-mass companions, we find for early-B stars in all three environments: (1) a close binary fraction of (22+/-5)% across orbital periods 2 < P (days) < 20 and mass ratios q = M_2/M_1 > 0.1, (2) an intrinsic orbital period distribution slightly skewed toward shorter periods relative to a distribution that is uniform in log P, (3) a mass-ratio distribution weighted toward low-mass companions, and (4) a small, nearly negligible excess fraction of twins with q > 0.9. Our fitted parameters derived for the MW eclipsing binaries match the properties inferred from nearby, early-type spectroscopic binaries, which further validates our results. There are no statistically significant trends with metallicity, demonstrating that the close binary properties of massive stars do not vary across metallicities -0.7 < log(Z/Z_sun) < 0.0 beyond the measured uncertainties.
description: 47 pages, 12 figures, accepted for publication in the Astrophysical Journal
Toward Monoatomic-Layer Field Confinement Limit via Acoustic Graphene Plasmons
Creators: name: Lee, In-Ho
name: Low, Tony
name: Martín-Moreno, Luis
name: Avouris, Phaedon
name: Oh, Sang-Hyun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Vertical plasmonic coupling in double-layer graphene leads to two hybridized plasmonic modes: optical and acoustic plasmons with symmetric and anti-symmetric charge distributions across the interlayer gap, respectively. However, in most experiments based on far-field excitation, only the optical plasmons are dominantly excited in the double-layer graphene systems. Here, we propose strategies to selectively and efficiently excite acoustic plasmons with a single or multiple nano-emitters. The analytical model developed here elucidates the role of the position and arrangement of the emitters on the symmetry of the resulting graphene plasmons. We present an optimal device structure to enable experimental observation of acoustic plasmons in double-layer graphene toward the ultimate level of plasmonic confinement defined by a monoatomic spacer, which is inaccesible with a graphene-on-a-mirror architecture.
The near room-temperature upsurge of electrical resistivity in Lu-H-N is not superconductivity, but a metal-to-poor-conductor transition
Creators: name: Peng, Di
name: Zeng, Qiaoshi
name: Lan, Fujun
name: Xing, Zhenfang
name: Ding, Yang
name: Mao, Ho-kwang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Since the discovery of superconductivity in mercury at 4 K in 1911, searching for materials with superconductivity at higher temperatures towards practical conditions has been a primary enduring goal. The recent report of room-temperature superconductivity at near-ambient pressure in nitrogen-doped lutetium hydride (Lu-H-N) by Dasenbrock-Gammon et al. (Hereafter referred as D-G) seems a great step approaching the ultimate goal. Specifically, they claimed evidence of superconductivity on Lu-H-N with a maximum Tc of 294 K at 1 GPa. However, the failure to observe the drastic temperature-dependent resistance change above 200 K in high-pressure synthesized Lu-H-N compounds, a prerequisite for superconductivity, by researchers worldwide in all independent follow-up studies casts a heavy shadow on the authenticity of the claims. The sober questions are: what is the sample that produces the sharp resistance jump near room temperature? What are the reasons for the non-reproducibility of others who follow the D-G method of synthesis and the inscrutable low success rate (35%) in synthesizing the right sample even for the authors in Ref. 1? What causes the observed sharp resistance jump? Here, with a well-controlled experiment protocol, we repeatedly reproduced the near room-temperature sudden change of electrical resistance in the Lu-H-N sample, and we could quantitatively compare its behavior with the initial pure Lu in a normal metallic state. These results enable us to scrutinize the origin for the near-room temperature sharp resistance change, which is attributed to a metal-to-poor-conductor transition rather than superconductivity.
description: 6 pages, 1 figure
Vibration Isolation Design for the Micro-X Rocket Payload
Creators: name: Heine, Sarah N. T.
name: Figueroa-Feliciano, Enectali
name: Rutherford, John M.
name: Wikus, Patrick
name: Oakley, Phil
name: Porter, Frederick S.
name: McCammon, Dan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Micro-X is a NASA-funded, sounding rocket-borne X-ray imaging spectrometer that will allow high precision measurements of velocity structure, ionization state and elemental composition of extended astrophysical systems. One of the biggest challenges in payload design is to maintain the temperature of the detectors during launch. There are several vibration damping stages to prevent energy transmission from the rocket skin to the detector stage, which causes heating during launch. Each stage should be more rigid than the outer stages to achieve vibrational isolation. We describe a major design effort to tune the resonance frequencies of these vibration isolation stages to reduce heating problems prior to the projected launch in the summer of 2014.
description: 6 pages, 7 figures, LTD15 Conference Proceedings
Bin ich schön!? - oder: Leben Schwule besser?
Creators: name: Leonhardt, Matthias C.
Publisher: name: Werkstatt Schwule Theologie
Year: 1970

description: Werkstatt Schwule Theologie, Bd. 9 Nr. 1 (2002): Werkstatt Schwule Theologie, Band 9, Heft 1
title: Der Doctrinair; [1848]
title: Meine Herren! Ich gebe es Ihnen zu, es hat uns eine glückliche, aber nothwendige und ehrenvolle Revolution hierher geführt : (56te. Sitzung.)
titleType: Subtitle
Creators: name: Stern, S.
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: No. XII
Fractionality and PT-symmetry in an electrical transmission line
Creators: name: Molina, Mario I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We examine the stability of a 1D electrical transmission line in the simultaneous presence of PT-symmetry and fractionality. The array contains a binary gain/loss distribution $γ_{n}$ and a fractional Laplacian characterized by a fractional exponent $α$. For an infinite periodic chain, the spectrum is computed in closed form, and its imaginary sector is examined to determine the stable/unstable regions as a function of the gain/loss strength and fractional exponent. In contrast to the non-fractional case where all eigenvalues are complex for any gain/loss, here we observe that a stable region can exist when gain/loss is small, and the fractional exponent is below a critical value, $0 < α< α_{c1}$ . As the fractional exponent is decreased further, the spectrum acquires a gap with two nearly-flat bands. We also examined numerically the case of a finite chain of size N. Contrary to what happens in the infinite chain, here the stable region always lies above a critical value $α_{c2} < α< 1$. An increase in gain/loss or $N$ always reduces the width of this stable region until it disappears completely.
description: 6 pages, 6 figures
Compression algorithm for multi-determinant wave functions
Creators: name: Weerasinghe, Gihan L.
name: Rios, Pablo Lopez
name: Needs, Richard J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A compression algorithm is introduced for multi-determinant wave functions which can greatly reduce the number of determinants that need to be evaluated in quantum Monte Carlo calculations. We have devised an algorithm with three levels of compression, the least costly of which yields excellent results in polynomial time. We demonstrate the usefulness of the compression algorithm for evaluating multi-determinant wave functions in quantum Monte Carlo calculations, whose computational cost is reduced by factors of between 1.885(3) and 25.23(4) for the examples studied. We have found evidence of sub-linear scaling of quantum Monte Carlo calculations with the number of determinants when the compression algorithm is used.
description: 7 pages, 2 figures
Experiments with Three Approaches to Recognizing Lexical Entailment
Creators: name: Turney, Peter D.
name: Mohammad, Saif M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: H.3.1; I.2.6; I.2.7

description: Inference in natural language often involves recognizing lexical entailment (RLE); that is, identifying whether one word entails another. For example, "buy" entails "own". Two general strategies for RLE have been proposed: One strategy is to manually construct an asymmetric similarity measure for context vectors (directional similarity) and another is to treat RLE as a problem of learning to recognize semantic relations using supervised machine learning techniques (relation classification). In this paper, we experiment with two recent state-of-the-art representatives of the two general strategies. The first approach is an asymmetric similarity measure (an instance of the directional similarity strategy), designed to capture the degree to which the contexts of a word, a, form a subset of the contexts of another word, b. The second approach (an instance of the relation classification strategy) represents a word pair, a:b, with a feature vector that is the concatenation of the context vectors of a and b, and then applies supervised learning to a training set of labeled feature vectors. Additionally, we introduce a third approach that is a new instance of the relation classification strategy. The third approach represents a word pair, a:b, with a feature vector in which the features are the differences in the similarities of a and b to a set of reference words. All three approaches use vector space models (VSMs) of semantics, based on word-context matrices. We perform an extensive evaluation of the three approaches using three different datasets. The proposed new approach (similarity differences) performs significantly better than the other two approaches on some datasets and there is no dataset for which it is significantly worse. Our results suggest it is beneficial to make connections between the research in lexical entailment and the research in semantic relation classification.
description: to appear in Natural Language Engineering
Introducing Digital Humanities in Library and Information Centers: Ensuring Ethical Responsibility of Library Professionals
Creators: name: Panda, Subhajit
name: Kaur, Navkiran
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461006
subject: Library studies
classificationCode: 461099
subject: Library and information studies not elsewhere classified

description: Digital humanities (DH) is a rapidly growing field that brings together scholars from a wide range of disciplines to explore the intersection of human culture and technology. DH leverages the power of digital tools and methods to study and analyze various aspects of human culture, including literature, history, art, and language, and has the potential to transform the traditional methods of organizing, managing, and disseminating information. This paper presents an all-inclusive exploration of DH and its application in LICs. It further examines the challenges and benefits of incorporating DH into information management methods and the most effective practices for its implementation. Additionally, it emphasizes the importance of ethical considerations when working with DH. Through this, LICs can remain relevant and responsive to the needs of their users while adhering to ethical standards.