cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Universal properties of cuprate superconductors
Creators: name: Schneider, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: To provide an understanding of the universal properties emerging from the empirical correlations and phase diagrams of cuprate superconductors, we invoke the scaling theory of finite temperature and quantum critical phenomena. The universal features are traced back to the existence of quantum critical lines, representing the end lines of the finite temperature transition surface. At the respective quantum critical lines 2D superconductor to insulator (2D-QSI) transitions and 3D superconductor to normal state (3D-QSN) transitions occur. The flow to this quantum critical points is tuned by doping, substitution and anisotropy. It is shown that the empirical correlations, like the dependence of Tc on dopant and substitution concentration, the dependence of Tc on zero temperature in-plane penetration depth, etc., reflect universal properties associated with the flow to these quantum critical points and of the crossover from one to the other. A detailed account of the flow to 2D-QSI and 3D-QSN criticality is a challenge for microscopic theories attempting to solve the puzzle of superconductivity in these materials.
description: 11 pages, 6 figures; Invited paper msR-2002
title: How close do you feel to your devices? Visual assessment of emotional relationships with digital devices
Creators: name: Carolus, Astrid
name: Wienrich, Carolin
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: POD
subject: UCD
subject: long-term user-device-interaction
subject: human-device relationship
subject: digital companionship

description: With modern digital devices becoming more adaptive and more personalized, usage behavior has changed dramatically. Devices are no longer mere technological equipment but are discussed to be “social companions” [1]. However, measures, scales and instruments barely keep in step with both the new ways of usage and the resulting new perspective on the devices [2]. Thus, measurements focusing on social and relational aspects of modern media use are rare. This paper addresses the need to develop new methodological approaches. Further, as online assessment tools are increasingly popular but face design-related disadvantages (e.g., termination, uncertain quality of data) it argues for a high quality design process. Consequently, this paper focuses on a new online instrument (labeled POD 1.0: Positioning Others and Devices) which has been developed to assess the relationship between users and their devices [1]. However, the first version of this tool raised problems (e.g., user errors, dropout rate). By attributing these shortcomings to design and layout [6, 11], a heuristic expert analysis of problems was conducted following a user-centered-design process (UCD). Three low fidelity prototypes resulted and were evaluated with evaluations leading on to the final prototype: POD 2.0. Further, this POD 2.0 was evaluated. 44 participants engaged in a long-term user study. Compared to the original tool, results revealed an improvement of both effectivity and satisfaction of the instrument. In sum, the present study brings instruments to focus which assess social and relational characteristics of a long-term user-device interaction. Further, user-centered-design processes are adopted to modify and refine the POD 1.0 indicating a promising way to improve the goodness of online assessment tools.
populärer Vortrag, gehalten in der Monatsversammlung des zoolog.-mineral. Vereins zu Regensburg am 5. April 1875 ; (Schluss)
Creators: name: Ueber Das Verhältniss Des Menschen Zum Thierreiche, .
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 29 (1875): Correspondenzblatt
title: Ganzheitliches UX-Measurement im Großunternehmen
Creators: name: Gunkel, Marian
name: Vocke, Maike
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: UX Strategie
subject: ResearchOps
subject: Measurement
subject: UX Maturity
subject: Fragebögen

description: Eine UX-Strategie gehört heute zum guten Ton – doch wie misst man ihren Fortschritt? Für die nutzerzentrierte Weiterentwicklung interner Prozesse und Anwendungen nutzen wir seit 2012 ein kontinuierliches und standardisiertes Messverfahren anhand von Online-Surveys. Mit Hilfe von quantitativen und qualitativen Daten messen und erklären wir die Nutzerzufriedenheit. Multiple Vergleiche sind durch den standardisierten Ansatz möglich und ermöglichen weitergehende Analysen und evidenzbasierte strategische Entscheidungen. Produkt-Teams messen ihre Zielerreichung anhand der KPIs und steigern so die UX Maturity des Unternehmens. Ein produkt-zentriertes Dashboard verknüpft die aus den Online-Surveys gewonnenen Nutzeraussagen mit Verhaltensdaten und Accessibility-Kennzahlen zu einem ganzheitlichen Bild. In kontinuierlichen Messungen entsteht so über die Zeit ein ganzheitliches Bild aus Produktverbesserungen und daraus folgenden Änderungen im Verhalten und Erleben der Nutzer.
Pseudovorticella monilata
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Peritrichida
Vorticellidae
Pseudovorticella
Pseudovorticella monilata

description: Pseudovorticella monilata (Tatem, 1870)
 Known Distribution. Switzerland.
 Hosts. Cyclops viridis.
 References. Keiser 1921; Morado & Small 1995.
 Cited as Vorticella monilata by Keiser (1921) and Morado & Small (1995) in Cyclops viridis.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 310, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
Acropora fastigata Nemenzo 1967
Creators: name: van der Meij, Sancia E. T.
name: Visser, Rémon R.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Scleractinia
Acroporidae
Acropora
Acropora fastigata

description: Acropora fastigata Nemenzo, 1967
(Fig. 3h–j)
 Acropora fastigata Nemenzo, 1967: 134–135, pl. 37 fig. 3, pl. 38 fig. 1.
 Acropora fastigata Nemenzo, 1981: 156–157, fig. 167; Nemenzo, 1986: 116-117, fig. 133; Veron, 2000: 331.
  Material examined. –  Indonesia, Paternoster Islands, Sailus Besar (RMNH Coel.39899); Philippines, Sulu Isl., Sipangkot near Sibutu (RMNH Coel.39566–39567).
  Short description. –  Colony corymbose to digitate; branches markedly tapering to narrow, conical apex, 15–25 mm in diameter and up to 110 mm long, often with incipient branchlets at base of branches, appearing like a tall axial corallite with few tubular radial corallites. Axial corallite very prominent, outer diameter 2.1–4.0 mm; radial corallites unevenly distributed and in different sizes, incipient radial corallites at base of branch, immersed corallites visible, tubular to downwards nariform with round openings.
  Biogeography. –  Wallace (1999) considered the validity of this species insufficiently known, but provisionally included it in the A. humilis group. This species was originally described by Nemenzo from Malotamban Isl., Palawan, where it was seen as rare (Nemenzo, 1967, 1986). On the recent Red List coral assessment of the IUCN the species was listed as data deficient (Carpenter et al., 2008). The Snellius specimens are strikingly similar to the A. fastigata pictured and described by Nemenzo (1986), and therefore identified as A. fastigata. The species was listed by Fenner (2001a) from Banggi Isl., Kudat (northern tip of Borneo), but no picture is available to confirm this record. Similarly the species was reported from the Togian Islands (Fenner, 2001b). Veron (2000) shows pictures of A. fastigata from the Calamian Isl. (just north of Palawan, north-western Philippines), and Flores (Indonesia). The new records for A. fastigata at Sipangkot and the Paternoster Islands are in line with these records.
description: Published as part of van der Meij, Sancia E. T. & Visser, Rémon R., 2011, The Acropora Humilis Group (Scleractinia) Of The Snellius Expedition (1929 - 30), pp. 9-17 in Raffles Bulletin of Zoology 59 (1) on page 15, DOI: 10.5281/zenodo.10106670
Robust subspace clustering by Cauchy loss function
Creators: name: Li, Xuelong
name: Lu, Quanmao
name: Dong, Yongsheng
name: Tao, Dacheng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Subspace clustering is a problem of exploring the low-dimensional subspaces of high-dimensional data. State-of-the-arts approaches are designed by following the model of spectral clustering based method. These methods pay much attention to learn the representation matrix to construct a suitable similarity matrix and overlook the influence of the noise term on subspace clustering. However, the real data are always contaminated by the noise and the noise usually has a complicated statistical distribution. To alleviate this problem, we in this paper propose a subspace clustering method based on Cauchy loss function (CLF). Particularly, it uses CLF to penalize the noise term for suppressing the large noise mixed in the real data. This is due to that the CLF's influence function has a upper bound which can alleviate the influence of a single sample, especially the sample with a large noise, on estimating the residuals. Furthermore, we theoretically prove the grouping effect of our proposed method, which means that highly correlated data can be grouped together. Finally, experimental results on five real datasets reveal that our proposed method outperforms several representative clustering methods.
description: 13 pages, 5 figures
Critical Phenomena Associated with Boson Stars
Creators: name: Hawley, Scott H.
name: Choptuik, Matthew W.
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a brief synopsis of related work (gr-qc/0007039), describing a study of black hole threshold phenomena for a self-gravitating, massive complex scalar field in spherical symmetry. We construct Type I critical solutions dynamically by tuning a one-parameter family of initial data consisting of a boson star and a massless real scalar field, and numerically evolving this data. The resulting critical solutions appear to correspond to boson stars on the unstable branch, as we show via comparisons between our simulations and perturbation theory. For low-mass critical solutions, we find small ``halos'' of matter in the tails of the solutions, and these distort the profiles which otherwise agree with unstable boson stars. These halos seem to be artifacts of the collisions between the original boson stars and the massless fields, and do not appear to belong to the true critical solutions. From this study, it appears that unstable boson stars are unstable to dispersal (``explosion'') in addition to black hole formation. Given the similarities in macroscopic stability between boson stars and neutron stars, we suggest that similar phenomena could occur in models of neutron stars.
description: 6 Pages, 5 Figures, LaTeX. To appear in Proceedings of the 20th Texas Symposium on Relativistic Astrophysics (Dec 9-15, 2000)
title: Learning how to talk: Co-producing action with and around voice agents
Creators: name: Reeves, Stuart
name: Fischer, Joel E
name: Porcheron, Martin
name: Sikveland, Rein
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: Conversation analysis
subject: ethnomethodology
subject: voice interfaces
subject: input design

description: The domestication of voice interfaces, made accessible in consumer devices such as the Apple HomePod, Google Home or the Amazon Echo, has led to everyday talk becoming intertwined with—as well as acting as—device input. Whether intending to interact with voice interfaces or not, conversationalists must learn ‘how to talk’ to and around them as a matter of this domestication work. Taking an ethnomethodological conversation analysis approach, this paper interrogates some of the ways in which conversationalists deploy a variety of methods so as to manage and design input in line with the strictures of voice interface capabilities and collaboratively accomplish—co-produce—actions with and around such devices.
Pseudovorticella quadrata Foissner 1979
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Peritrichida
Vorticellidae
Pseudovorticella
Pseudovorticella quadrata

description: Pseudovorticella quadrata Foissner, 1979
 Known Distribution. Mexico.
 Hosts. Cambarellus (Cambarellus) patzcuarensis (cited as Cambarellus patzcuarensis).
 References. Mayén-Estrada & Aladro-Lubel, 2002; Fernandez-Leborans, 2009.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 311, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
title: Haftungsfragen im Zusammenhang mit Mensch-Roboter-Interaktion
Creators: name: Diekmann, Niels
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: Haftungsrecht Roboter

description: Obgleich der Roboter-Begriff allgemein geläufig ist, bereitet die genaue Begriffsbestimmung im Einzelfall Schwierigkeiten. Es bestehen ISO-Normen für Robotik-Produkte, eine konkrete gesetzliche Definition oder gar ein „System der einmaligen Produktnummer“ für Roboter ist - zumindest derzeit - noch nicht vorgesehen. Das Europäische Parlament hat in seiner Entschließung vom 16. Februar 2017 einen intelligenten Roboter als Gerätschaft definiert, die über Sensoren und/oder über den Datenaustausch mit seiner Umgebung und die Bereitstellung und Analyse dieser Daten Autonomie erlangt, ggfs. zum Selbstlernen durch Erfahrung und durch Interaktion fähig ist, über wenigstens eine minimale physische Unterstützung und die Fähigkeit verfügt, ihr Verhalten und ihre Handlungen an ihre Umgebung anzupassen. Wesentliches Merkmal eines Roboters, in Abgrenzung zu anderen Maschinen und Gerätschaften, dürfte hiernach seine Fähigkeit sein, autonom zu handeln.
title: Ethische Anforderungen eines robotergestützten Einkaufsassistenten
Creators: name: Fink, Vera
name: Herms, Robert
name: Bischof, Andreas
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: Mensch-Roboter Interaktion
subject: Assistenzsysteme im Supermarkt

description: In diesem kurzgefassten Artikel möchten wir die Ergebnisse der durchgeführten Living-Lab Workshops im Kontext des I-RobEka Projektes vorstellen und diskutieren. Zunächst stellen wir das Projekt vor. Als Nächstes werden wir den Aufbau des Workshops beschreiben und zum Schluss die ethischen Fragestellungen präsentieren.
Real-space observation of charge ordering in epitaxial La2-xSrxCuO4 films
Creators: name: Wang, Yang
name: Zhong, Yong
name: Luo, Zhiling
name: Liao, Menghan
name: Wang, Ruifeng
name: Dou, Ziyuan
name: Zhang, Qinghua
name: Zhang, Ding
name: Gu, Lin
name: Song, Can-Li
name: Ma, Xu-Cun
name: Xue, Qi-Kun
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The cuprate superconductors exhibit ubiquitous instabilities toward charge-ordered states. These unusual electronic states break the spatial symmetries of the host crystal, and have been widely appreciated as essential ingredients for constructing a theory for high-temperature superconductivity in cuprates. Here we report real-space imaging of the doping-dependent charge orders in the epitaxial thin films of a canonical cuprate compound La2-xSrxCuO4 using scanning tunneling microscopy. As the films are moderately doped, we observe a crossover from incommensurate to commensurate (4a0, where a0 is the Cu-O-Cu distance) stripes. Furthermore, at lower and higher doping levels, the charge orders occur in the form of distorted Wigner crystal and grid phase of crossed vertical and horizontal stripes. We discuss how the charge orders are stabilized, and their interplay with superconductivity.
description: 15 pages, 4 figures plus supplementary materials
Skinner-Rusk approach to time-dependent mechanics
Creators: name: Cortes, J.
name: Martinez, S.
name: Cantrijn, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 37J05; 70H03; 70H45

description: The geometric approach to autonomous classical mechanical systems in terms of a canonical first-order system on the Whitney sum of the tangent and cotangent bundle, developed by R. Skinner and R. Rusk, is extended to the time-dependent framework.
Olenecamptus bilobus
Creators: name: Majumder, Amitava
name: Mitra, Bulganin
name: Ghate, H. V.
name: Chandra, Kailash
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Olenecamptus
Olenecamptus bilobus

description: Olenecamptus bilobus (Fabricius, 1801)
 Material Examined. C h h a t t i s g a r h, D u r g, Badbhum FRH, 20°34′22.5″, 81°19′4.4″, 419 m, 11.II.2014 (1♂), 31.III.2014 (1♂). Collected by Sunil Gupta and party; Korba, Lemru FRH, 22°38′26.2″, 82°50′19.0″, 447 m, 24.III.2014 (1♀). Collected by A. Majumder and party; Koriya, GGNP, Sonath FRH, 23°28′32.7″, 82°31′35.9″, 690m, 15.VII.2013 (1♀), 14.VII.2013 (2♂ 1♀), 13.XI.2013 (1♀). Collected by A.Parida and party.
 Redescription. Body robust, clothed with greyish yellow pubescence, more so than in O. indianus and O. anogeissi, with fewer spots and patches of pubescence (Fig. 1Q, T); vertex broad, densely pubescent, without spots and patches (Fig. 1U); frons with dense, yellowish white pubescence; gena little longer than that of O. indianus and O. anogeissi (Fig. 1V); antenna 11-segmented, granulations on antennomere I similar to those on O. indianus in both the sexes, more granulations on male antenna than on female antenna (Fig. 2F,G), antennomere III warty, more than twice longer than IV (Fig. 1W); pronotum greyish yellow throughout, with a very small spot at base (Fig. 1U); elytra elongate, 1 large, broad, kidney-shaped, whitish yellow patch close to scutellum on either side of elytra, 1 small, suboval patch laterally in front of middle, 1 suboval, large, whitish yellow patch behind middle of elytra; elytral apex rounded (Fig. 1T); without any pale whitish spots or bands on lateral margins of abdominal segments (Fig. 1R, S). Legs densely pubscent, mesocoxal cavities closed (Fig. 1S), tarsal claws diverging by more than 90° (Fig. 1X). Median lobe little longer than median struts (Fig. 3G); medial part smaller than tegmen. Apex of median lobe rounded, smooth throughout (Fig. 3I). Ring portion of tegmen long (Fig. 3G); parameres almost united, basally broader, tips covered with small setae (Fig. 3I). Endophallus attached between bifurcated parts of median lobe, elongate (Fig. 3H).
description: Published as part of Majumder, Amitava, Mitra, Bulganin, Ghate, H. V. & Chandra, Kailash, 2016, On Three Species of the GenusOlenecamptusChevrolat, 1835 (Coleoptera: Cerambycidae: Lamiinae: Dorcaschematini) from Chhattisgarh, India, with a List of the Indian Species, pp. 321-326 in The Coleopterists Bulletin 70 (2) on pages 321-326, DOI: 10.1649/0010-065X-70.2.321, http://zenodo.org/record/10106742
Single atom laser in normal-superconductor quantum dots
Creators: name: Rastelli, Gianluca
name: Governale, Michele
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a single-level quantum dot strongly coupled to a superconducting lead and tunnel-coupled to a normal electrode which can exchange energy with a single-mode resonator. We show that a such system can sustain lasing characterized by a sub-Poissonian Fock-state distribution of the resonator. The lasing regime is clearly identifiable in the subgap transport regime: in the resonant case, the current is pinned to the maximum value achievable in this hybrid nanostructure.
description: 5 pages, 4 figures
title: Problematische Aspekte der MRI-Forschung, Epistemologische und methodologische Kritik des Zustands eines Feldes
Creators: name: Bischof, Andreas
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: Mensch-Roboter-Interaktion
subject: Wissenschaftssoziologie
subject: Kritik

description: Der Beitrag verweist auf drei typische und problematische Dimensionen der Forschung und Entwicklung zu Mensch-Roboter-Interaktion (MRI). Parallel zur Ebene der methodischen, ethischen, rechtlichen und sozialen Implikationen (MERS) von Forschung in diesem Feld, nimmt er also eine wissenschaftssoziologische Metaperspektive ein. Der Beitrag rekonstruiert kritisch, wie MRI-Forschung grundlegend strukturiert ist und welchen Welt- und Anwendungsbezug dieses Feld daher einnimmt. Die drei zu rekonstruierenden Dimensionen betreffen die das Verhältnis von Problem und Lösung, den werkzeughaften Umweltbezug und die Rolle von Inszenierung von Roboterverhalten in der MRI-Forschung.
Cosmological perturbations in the bulk and on the brane
Creators: name: Bridgman, Helen A.
name: Malik, Karim A.
name: Wands, David
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study cosmological perturbations in a brane-world scenario where the matter fields live on a four-dimensional brane and gravity propagates in the five-dimensional bulk. We present the equations of motion in an arbitrary gauge for metric perturbations in the bulk and matter perturbations on the brane. Gauge-invariant perturbations are then constructed corresponding to perturbations in longitudinal and Gaussian normal gauges. Longitudinal gauge metric perturbations may be directly derived from three master variables (separately describing scalar, vector and tensor metric perturbations) which obey five-dimensional wave-equations. Gaussian normal gauge perturbations are directly related to the induced metric perturbations on the brane with the additional bulk degrees of freedom interpreted as an effective Weyl energy-momentum tensor on the brane. We construct gauge-invariant perturbations describing the effective density, momentum and pressures of this Weyl fluid at the brane and throughout the bulk. We show that there exist gauge-invariant curvature perturbations on the brane and in the bulk that are conserved on large-scales when three-dimensional spatial gradients are negligible.
description: 26 pages, 1 figure; equations for 5D longitudinal gauge perturbations in terms of master variables corrected. Published version
title: "A Stubborn Child" - How Robot Sounds are Oriented to in Everyday Situated Interaction at Home
Creators: name: Pelikan, Hannah
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: social robotics
subject: situated interaction
subject: conversation analysis
subject: robot sounds
subject: non-lexical sounds

description: Humans make sense of robot actions in the situated context that these actions occur in. This paper takes a conversation analytic approach in studying how the social robot Cozmo is received in a family home, focusing on the non-lexical sounds that the robot uses to communicate. Preliminary findings suggest that participants treat the robot similar to a young child or pet and orient to the robot’s sounds in the local context of the interaction.
title: Referential Practices for a Museum Guide Robot. Human-Robot-Interaction as a Methodological Tool to Investigate Multimodal Interaction
Creators: name: Pitsch, Karola
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2019
Subjects: subject: Social Robotics
subject: HRI
subject: Deixis
subject: Referential Practices
subject: Interactional Coordination
subject: Multimodality
subject: Methodology
subject: Guide Robot

description: An autonomous robot system was equipped with basic means to monitor the users’ success/failure in following a robot’s verbal-gestural deictic reference to an object and – in case of problems – to provide additional help, i.e. to suggest a ‘repair’ action. A real-world field trial with the robot acting as museum guide constitutes the basis for analysis of the users’ reactions. This example is used to explore HRI as a tool to investigate multimodal interaction.
Tunnelling of Polarized Electrons in Magnetic Wires
Creators: name: Schmeltzer, D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the tunnelling between an electronic gas with two different velocities $V_\uparrow \neq V_\downarrow$ and a regular metal. We find that at the interface between the two systems that the tunnelling conductance for spin up and spin down are different. As a result a partly polarized gas (``magnetic wire'') is obtained. This result is caused by the e-e interaction, $g_2'' - g_1'' \neq 0$, which in the presence of $V_\uparrow \neq V_\downarrow$ gives rise to two different tunnelling exponents.
description: 9 pages
(Fortsetzung).
Creators: name: Systematische Uebersicht Der Käfer, Welche In Baiern Und Der Nächsten Umgebu
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 29 (1875): Correspondenzblatt
Statistical models for company growth
Creators: name: Wyart, Matthieu
name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study Sutton's `microcanonical' model for the internal organisation of firms, that leads to non trivial scaling properties for the statistics of growth rates. We show that the growth rates are asymptotically Gaussian in this model, at variance with empirical results. We also obtain the conditional distribution of the number and size of sub-sectors in this model. We formulate and solve an alternative model, based on the assumption that the sector sizes follow a power-law distribution. We find in this new model both anomalous scaling of the variance of growth rates and non Gaussian asymptotic distributions. We give some testable predictions of the two models that would differentiate them further. We also discuss why the growth rate statistics at the country level and at the company level should be identical.
description: Minor changes, submitted to Physica A
Friction Scaling Laws for Transport in Bacterial Turbulence
Creators: name: P., Sanjay C.
name: Joy, Ashwin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Understanding the role of frictional drag in diffusive transport is an important problem in the field of active turbulence. Using a continuum model that applies well to bacterial suspensions, we investigate the role of Ekmann friction on the transport of passive (Lagrangian) tracers that go with the local flow. We find that the crossover from ballistic to diffusive regime happens at a time scale $τ_c$ that attains a minimum at zero friction, meaning that both injection and dissipation of energy delay the relaxation of tracers. We explain this by proposing that $τ_c \sim 2 \ell^*/u_{\text{rms}}$, where $\ell^*$ is a dominant length scale extracted from energy spectrum peak, and $u_{\text{rms}}$ is a velocity scale that sets the kinetic energy at steady state, both scales monotonically decrease with friction. Finally, we predict robust scaling laws for $\ell^*$, $u_{\text{rms}}$ and the diffusion coefficient $\mathcal{D} \sim \ell^* u_{\text{rms}} / 2$, that are valid over a wide range of fluid friction. Our findings might be relevant to transport phenomena in a generic active fluid.
Ruthiella gammari Schodel 1983
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Campanulaceae
Ruthiella
Ruthiella gammari

description: Ruthiella gammari Schödel, 1983
 Known Distribution. Germany.
 Hosts. Gammarus pulex; Gammarus roeselii; Gammarus roeselii (cited as Carinogammarus roeseli); Gammarus sp.; gammarids.
 References. Schödel 1983, 1986a; Rustige 1991; Rustige & Mannesmann 1991; Morado & Small 1995; Jankowski 2007.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 311, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
Coverage Area Determination for Conical Fields of View Considering an Oblate Earth
Creators: name: Nugnes, Marco
name: Colombo, Camilla
name: Tipaldi, Massimo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This paper introduces a new analytical method for the determination of the coverage area modeling the Earth as an oblate ellipsoid of rotation. Starting from the knowledge of the satellite's position vector and the direction of the navigation antenna line of sight, the surface generated by the intersection of the oblate ellipsoid and the assumed conical field of view is decomposed in many ellipses, obtained by cutting the Earth's surface with every plane containing the navigation antenna line of sight. The geometrical parameters of each ellipse can be derived analytically together with the points intersection of the conical field of view with the ellipse itself by assuming a proper value of the half-aperture angle or the minimum elevation angle from which the satellite can be considered visible from the Earth's surface. The method can be applied for different types of pointing (geocentric, geodetic and generic) according to the mission requirements. Finally, numerical simulations compare the classical spherical approach with the new ellipsoidal method in the determination of the coverage area, and also show the dependence of the coverage errors on some relevant orbital parameters.
description: 32 pages, 16 figures, 5 tables, 21 references. Post-print version of the article published on the Journal of Guidance, Control, and Dynamics
populärer Vortrag, gehalten in der Monatsversammlung des zoolog.-mineral. Vereins zu Regensburg am 5. April 1875
Creators: name: Ueber Das Verhältniss Des Menschen Zum Thierreiche, .
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 29 (1875): Correspondenzblatt
Petalidium Spence Bate 1881
Creators: name: Vereshchaka, Alexander L.
name: Lunina, Anastasia A.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Acanthaceae
Petalidium

description: TAXONOMY OF PETALIDIUM
 The character dataset indicates the need of an emended diagnosis of the genus. For a deeper insight into the taxonomy of Petalidium, we analyzed the data in the available literature, which included a total of 10 variable characters (see Supporting informartion, Appendix S4). Having summarized these data, we concluded that only four of these 10 characters are of taxonomic value: character 3 (hepatic spines), character 5 (arthrobranchs on somite XIII), character 7 (LA of petasma compared to Lac of petasma), and character 8 (LA of petasma; number of hooks). These four characters, along with others that we have defined, are used by us as diagnostic characters for species of Petalidium, and for phylogenetic reconstructions.
description: Published as part of Vereshchaka, Alexander L. & Lunina, Anastasia A., 2015, Phylogeny and taxonomy of the enigmatic genus Petalidium (Decapoda, Sergestidae), with biological remarks, pp. 459-472 in Zoological Journal of the Linnean Society 174 (3) on page 466, DOI: 10.1111/zoj.12243, http://zenodo.org/record/10106760
Primordial space-time foam as an origin of cosmological matter-antimatter asymmetry
Creators: name: Ahluwalia, D. V.
name: Kirchbach, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility is raised that the observed cosmological matter-antimatter asymmetry may reside in asymmetric space-time fluctuations and their interplay with the Stckelberg-Feynman interpretation of antimatter. The presented thesis also suggests that the effect of space-time fluctuations is to diminish the fine structure constant in the past. Recent studies of the QSO absorption lines provide a 4.1 standard deviation support for this prediction. Our considerations suggest that in the presence of space-time fluctuations, the principle of local gauge invariance, and the related notion of parallel transport, must undergo fundamental changes.
description: This is an extended version of an essay selected for an ``honorable mention'' in the Annual Essay Competition of the Gravity Research Foundation for the year 2001. To appear in the December 2001 Special Issue of Int. J. Mod. Phys. D
Gravestones as Mirror: A Visual Discourse on Batu Aceh
Creators: name: Shahir, Safrizal
Publisher: name: The Australian National University
Year: 2017
Subjects: Contemporary Drawing
Batu Aceh
practice-led research

description: This practice-led research project was conducted to recognise the artistic and cultural significance of the Batu Aceh from several perspectives and interpretations through the use of drawing and printmedia. Batu Aceh gravestones were created between the thirteenth to nineteenth centuries by Muslim communities in Southeast Asia. Batu Aceh have special characteristics which lie in their form and socio-cultural context. In my studio research I explore the various forms of Batu Aceh, and their ornamentation, via multiple series of drawings employing a range of experimental processes, materials and techniques. My engagement with the Batu Aceh is personal and subjective and my reflections and speculations on them have evolved over my period of study. Drawing was chosen as the medium for perceptual disclosure and artistic interpretation due to its own visual characteristics, such as directness, spontaneity and modesty of means. Through drawing, the Batu Aceh subject is perceived and interpreted using three approaches, which are representational-realistic, subjective-intuitive and contextual-schematic. As a result, the drawings have highlighted my personal experiences pertaining to the quality and formation features of Batu Aceh as well as spatial, temporal and socio-cultural contexts that relate to their existence. The idea underlying this project is significant and relevant as it suggests that artistic interpretation could broaden the appreciation, experience and perception towards historical objects like Batu Aceh.
Vorticella aequilata Kahl 1939
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Peritrichida
Vorticellidae
Vorticella
Vorticella aequilata

description: Vorticella aequilata Kahl, 1939
 Known Distribution. The Netherlands.
 Hosts. Gammarus tigrinus.
 References. Bierhof & Ross 1977; Fernandez-Leborans & Tato-Porto 2000.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 311, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
Coherent control and single-shot readout of a rare-earth ion embedded in a nanophotonic cavity
Creators: name: Kindem, Jonathan M.
name: Ruskuc, Andrei
name: Bartholomew, John G.
name: Rochman, Jake
name: Huan, Yan Qi
name: Faraon, Andrei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum networks based on optically addressable spin qubits promise to enable secure communication, distributed quantum computing, and tests of fundamental physics. Scaling up quantum networks based on solid-state luminescent centers requires coherent spin and optical transitions coupled to photonic resonators. Here we investigate single $\mathrm{{}^{171}Yb^{3+}}$ ions in yttrium orthovanadate coupled to a nanophotonic cavity. These ions possess optical and spin transitions that are first-order insensitive to magnetic field fluctuations, enabling optical linewidths less than 1 MHz and spin coherence times exceeding 30 ms for cavity-coupled ions. The cavity-enhanced optical emission rate facilitates efficient spin initialization and conditional single-shot readout with fidelity greater than 95%. These results showcase a solid-state platform based on single coherent rare-earth ions for the future quantum internet.
Vorticella alba Fromentel 1874
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Peritrichida
Vorticellidae
Vorticella
Vorticella alba

description: Vorticella alba Fromentel, 1874
 Known Distribution. Switzerland.
 Hosts. Macrocyclops albidus (cited as Cyclops albidus); Cyclops viridis; Gammarus pulex.
 References. Keiser 1921; Morado & Small 1995.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 311, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
On the regularity of minimizers for scalar integral functionals with $(p,q)$-growth
Creators: name: Bella, Peter
name: Schäffner, Mathias
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We revisit the question of regularity for minimizers of scalar autonomous integral functionals with so-called $(p,q)$-growth. In particular, we establish Lipschitz regularity under the condition $\frac{q}p<1+\frac{2}{n-1}$ for $n\geq3$ which improves a classical result due to Marcellini~[JDE'91].
170 Nanometer Nuclear Magnetic Resonance Imaging using Magnetic Resonance Force Microscopy
Creators: name: Thurber, Kent R.
name: Harrell, Lee E.
name: Smith, Doran D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate one-dimensional nuclear magnetic resonance imaging of the semiconductor GaAs with 170 nanometer slice separation and resolve two regions of reduced nuclear spin polarization density separated by only 500 nanometers. This is achieved by force detection of the magnetic resonance, Magnetic Resonance Force Microscopy (MRFM), in combination with optical pumping to increase the nuclear spin polarization. Optical pumping of the GaAs creates spin polarization up to 12 times larger than the thermal nuclear spin polarization at 5 K and 4 T. The experiment is sensitive to sample volumes containing $\sim 4 \times 10^{11}$ $^{71}$Ga$/\sqrt{Hz}$. These results demonstrate the ability of force-detected magnetic resonance to apply magnetic resonance imaging to semiconductor devices and other nanostructures.
description: Submitted to J of Magnetic Resonance
Vorticella bosminae Sramek-Husek 1948
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Peritrichida
Vorticellidae
Vorticella
Vorticella bosminae

description: Vorticella bosminae Sramek-Husek, 1948
 Known Distribution. Czech Republic, and The Netherlands.
 Hosts. Bosmina (Bosmina) longirostris cited as Bosmina longirostris; Mesocyclops leuckarti; Thermocyclops hyalinus (cited as Thermocyclopsis hyalinus); cyclopoid copepods.
 References. Green 1974; Warren 1986; Morado & Small 1995; Fernandez-Leborans & Tato-Porto 2000; Chatterjee et al. 2013.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 311, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
mini-TimeCube as a Neutron Scatter Camera
Creators: name: Jocher, Glenn R.
name: Koblanski, John
name: Li, Viacheslav A.
name: Negrashov, Sergey
name: Dorrill, Ryan C.
name: Nishimura, Kurtis
name: Sakai, Michinari
name: Learned, John G.
name: Usman, Shawn
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present Monte Carlo (MC) simulation results from a study of a compact plastic-scintillator detector suitable for imaging fast neutrons in the 1 -- 10 MeV energy range: the miniTimeCube (mTC). Originally designed for antineutrino detection, the mTC consists of 24 MultiChannel Plate (MCP) photodetectors surrounding a 13 cm cube of boron-doped plastic scintillator. Our simulation results show that waveform digitization of 1536 optically sensitive channels surrounding the scintillator should allow for spatiotemporal determination of individual neutron-proton scatters in the detector volume to $\thicksim$100 picoseconds and $\thicksim$5 mm. A Bayesian estimation framework is presented for multiple-scatter reconstruction, and is used to estimate the incoming direction and energy of simulated individual neutrons. Finally, we show how populations of reconstructed neutrons can be used to estimate the direction and energy spectrum of nearby simulated neutron sources.
description: 13 pages, 16 figures
Vorticella communis Fromentel 1874
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Peritrichida
Vorticellidae
Vorticella
Vorticella communis

description: Vorticella communis Fromentel, 1874
 Known Distribution. Mexico.
 Hosts. Cambarellus (Cambarellus) patzcuarensis (cited as Cambarellus patzcuarensis).
 References. Mayén-Estrada & Aladro-Lubel 2002; Fernandez-Leborans 2009.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 312, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
Vorticella cupifera Kahl 1931
Creators: name: Mayén-Estrada, Rosaura
name: Pinto Utz, Laura R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Oligohymenophorea
Peritrichida
Vorticellidae
Vorticella
Vorticella cupifera

description: Vorticella cupifera Kahl, 1931
 Known Distribution. Germany.
 Hosts. Cyclops viridis.
 References. Nenninger 1948; Jankowski 2007.
description: Published as part of Mayén-Estrada, Rosaura & Pinto Utz, Laura R., 2018, A checklist of species of Vorticellidae (Ciliophora: Peritrichia) epibionts of crustaceans, pp. 301-328 in Zootaxa 4500 (3) on page 312, DOI: 10.11646/zootaxa.4500.3.1, http://zenodo.org/record/5297657
Placing Hospitality: Iranian Citizens and Afghan Refugees in the City of Shiraz
Creators: name: Yarbakhsh, Elisabeth Jane
Publisher: name: The Australian National University
Year: 2017
Subjects: Iran
Shiraz
Afghan refugees
hospitality
Derrida

description: Iranian hospitality is not enacted only at the border, but in the everyday interactions between Iranian citizens and Afghan refugees at sites of national significance in and around the city of Shiraz. In my thesis I take the broad notion of hospitality—as articulated by Jacques Derrida and engaged with by numerous scholars over a number of decades and across a broad range of disciplines—and place it in the Shirazi locale. I argue that shifting policies and practices towards refugees between 1979 and 2014 run parallel to shifting notions of what it means to be Iranian. The tension between Islamic and historical-nationalist discourses of identity forms the background for my exploration of hospitality in the context of the relationship between Iranians and Afghans in Shiraz. I seek to understand the interplay between identity and hospitality as expressed through the notion of ‘Iranian hospitality,’ which itself emerges out of variously competing and intersecting Islamic, historical and literary narratives. Narratives of identity and hospitality adhere to particular sites in and around the city of Shiraz. I locate three sites (or clusters of sites) around which some of the most significant myths of Iranian nationalism have been woven and over which Shiraz exerts a certain proprietorship. These sites can be broadly categorised as religious sites (amongst which I include two major shrine complexes within the city), historical sites (centred primarily on the Persepolis ruins located just north of Shiraz) and literary sites (focussed on the mausoleums of two Shiraz-based classical Persian-language poets). I explore these sites both in terms of their symbolic significance in Iranian constructions of the hospitable nation and as lived spaces in which Iranian citizens and Afghan refugees interact (or, indeed, fail to interact). Techniques of social anthropology lie at the very heart of my thesis. By inserting myself, as an ethnographer-guest, into a space of hospitality, I have sought to explore how hospitality maps onto the city and its surrounds. Furthermore, by tracing modalities of inclusion and exclusion in the urban space I offer an alternative to state-centric narratives of migration. In this thesis I have examined how a principle of hospitality comes to be articulated and experienced in Iran. I have shown that such a principle is not static but in fact shifts and changes over time and in accordance with shifting notions of identity. As I have interrogated the idea of Iranian hospitality in light of the occasionally fractious relationship between Iranian-citizens and Afghan-refugees in the city of Shiraz, I have exposed tensions and contradictions in the Iranian construction of national identity. At the same time, I have concluded that within the current hostile environment for Afghan refugees in Iran, the potential for hospitality remains.