cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Poromya rostrata REHDER 1943
Creators: name: Machado, Fabrizio Marcondes
name: Passos, Flávio Dias
name: Giribet, Gonzalo
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Galeommatida
Poromyidae
Poromya
Poromya rostrata

description: POROMYA ROSTRATA REHDER, 1943
(FIGS 10, 11)
Description
Shell: Ovate-trigonal, inflated, thin, whitish, inaequilateral, slightly inaequivalve; posterior margin with a short rostrum; outer sculpture granulated with micro-pustules over the entire shell; without lithodesma.
Mantle: Ventral mantle margin with one anteriorly wide pedal gape, extending from the anterior adductor until the inhalant siphon; without a fourth pallial aperture.
Siphons: Separated, different in size and outline; inhalant siphon, large, modified in a raptorial appendage, typically retracted into the infra-septal chamber; exhalant siphon short, cone-like and everted in this specimen; both surrounded at the base by a ring of large siphonal tentacles, 12 around the inhalant and three around exhalant; debris attached to the siphonal walls.
Septum: Thin, ventral surface with well-defined twopaired groups of slit-like branchial apertures, with no interfilamental connections; anterior group with four and posterior with five slits. Presence of a small and lobulate hollow sac in the posterior inner floor of the septum.
L a b i a l p a l p s: N o n - l a m e l l a t e, f l a t t e n e d a n d asymmetrical with anterior labial palps large and posterior labial palps small.
Musculature: Posterior and anterior adductor muscles present and isomyarian; with posterior and anterior pedal and septal retractor muscles; lateral septal muscles not visible in this specimen; taenioid muscle absent.
Foot: Large and elongated; absence of pedal groove and byssal thread.
Digestive system: The funnel-shaped mouth opens into a thick, short and muscular oesophagus that enters the anterodorsal portion of the stomach; with a sphincter between oesophagus and stomach opening; stomach large, rounded, internal grooves not visible into the gastric chamber; stomach connected to the short and small crystalline style sac located on the median portion of the stomach floor; no prey observed inside the stomach; stomach surrounded dorsally and anteriorly by the gonads and digestive gland; two gastric caeca observed in the digestive gland; crystalline style sac conjoined with the anterior portion of the midgut; crystalline style present; pericardium/heart surround the rectum/hindgut; hindgut passes above the kidney.
Reproductive system: Hermaphroditic, ovary and testis well visible; ovary closely associated to the digestive gland cover the roof and the posterior wall of the stomach; the testis lie ventral to the ovary and consist of a pair of large lobulate sacs.
Nervous system: With circum-oesophagic, pedal and visceral ganglia observed.
description: Published as part of Machado, Fabrizio Marcondes, Passos, Flávio Dias & Giribet, Gonzalo, 2019, The use of micro-computed tomography as a minimally invasive tool for anatomical study of bivalves (Mollusca: Bivalvia), pp. 46-75 in Zoological Journal of the Linnean Society 186 on page 59
Semi-entwining structures and their applications
Creators: name: Nichita, Florin F.
name: Parashar, Deepak
name: Zielinski, Bartosz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Semi-entwining structures are proposed as concepts simpler than entwining structures, yet they are shown to have interesting applications in constructing intertwining operators and braided algebras, lifting functors, finding solutions for Yang-Baxter systems, etc. While for entwining structures one can associate corings, for semi-entwining structures one can associate comodule algebra structures where the algebra involved is a bialgebra satisfying certain properties.
description: 15 pages, LaTeX
On the Spectrum of the Periodic Anderson-Bernoulli Model
Creators: name: Wood, William
Publisher: name: arXiv
Year: 2022
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We analyze the spectrum of a discrete Schrodinger operator with a potential given by a periodic variant of the Anderson Model. In order to do so, we study the uniform hyperbolicity of a Schrodinger cocycle generated by the SL(2,R) transfer matrices. In the specific case of the potential generated by an alternating sequence of random values we show that the almost sure spectrum consists of at most 4 intervals.
description: 11 pages, 2 figures
Initial Stages of FeO Growth on Ru(0001)
Creators: name: Palacio, Irene
name: Monti, Matteo
name: Marco, Jose F.
name: McCarty, Kevin F.
name: de la Figuera, Juan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study how FeO wüstite films on Ru(0001) grow by oxygen-assisted molecular beam epitaxy at elevated temperatures (800-900 K). The nucleation and growth of FeO islands are observed in real time by low-energy electron microscopy (LEEM). When the growth is performed in an oxygen pressure of 10-6 Torr, the islands are of bilayer thickness (Fe-O-Fe-O). In contrast, under a pressure of 10-8 Torr, the islands are a single FeO layer thick. We propose that the film thickness is controlled by the concentration of oxygen adsorbed on the Ru. More specifically, when monolayer growth increases the adsorbed oxygen concentration above a limiting value, its growth is suppressed. Increasing the temperature at a fixed oxygen pressure decreases the density of FeO islands. However, the nucleation density is not a monotonic function of oxygen pressure.
description: 17 pages, 8 figures
II Stereoisomerie und Tautomerie von 1.4-Benzochinonoximen
Creators: name: Uffmann, H.
Publisher: name: Berlin : De Gruyter
Year: 1967
Subjects: subject: 1.4-Benzodiinonoxim
subject: 4-Nitrosophenol
subject: Chinonoximäther
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Stereoisomere 1.4-Benzochinonoxime liegen in Lösung im Gleichgewicht vor; die Umwandlung erfolgt über ein mesomeres Ion. Bei 1.4-Benzochinon-4-oximen, die in 3-Stellung substituiert sind, steht die Oximgruppe nur anti zu diesem Substituenten. Das sogenannte „stabile anti *-2-Chlor-5-methyl-1.4-benzochinon-4-oxim“ („β-Form“) ist ein Addukt dieses Oxims (Oximgruppe syn zu Cl) mit dem strukturisomeren syn *-2-Methyl-5-chlor-1.4-benzochinon-4-oxim. Die Stereoisomeren von Chinonoximäthern lassen sich trennen; sie erleiden in Lösung bis 100 °C keine Umwandlung in das andere Stereoisomere.
Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-day binary system
Creators: name: Murphy, S. J.
name: Pigulski, A.
name: Kurtz, D. W.
name: Suarez, J. C.
name: Handler, G.
name: Balona, L. A.
name: Smalley, B.
name: Uytterhoeven, K.
name: Szabo, R.
name: Thygesen, A. O.
name: Elkin, V.
name: Breger, M.
name: Grigahcene, A.
name: Guzik, J. A.
name: Nemec, J. M.
name: Southworth, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The candidate SX Phe star KIC 11754974 shows a remarkably high number of combination frequencies in the Fourier amplitude spectrum: 123 of the 166 frequencies in our multi-frequency fit are linear combinations of independent modes. Predictable patterns in frequency spacings are seen in the Fourier transform of the light curve. We present an analysis of 180 d of short-cadence Kepler photometry and of new spectroscopic data for this evolved, late A-type star. We infer from the 1150-d, long-cadence light curve, and in two different ways, that our target is the primary of a 343-d, non-eclipsing binary system. According to both methods, the mass function is similar, f(M)=0.0207 +/- 0.0003 Msun. The observed pulsations are modelled extensively, using separate, state-of-the-art, time-dependent convection (TDC) and rotating models. The models match the observed temperature and low metallicity, finding a mass of 1.50-1.56 Msun. The models suggest the whole star is metal-poor, and that the low metallicity is not just a surface abundance peculiarity. This is the best frequency analysis of an SX Phe star, and the only Kepler δ Sct star to be modelled with both TDC and rotating models.
description: 15 pages, 6 tables, 11 figures of which 7 are colour (suitable for greyscale printing). Accepted for publication in MNRAS
Fabrication and tuning of plasmonic optical nanoantennas around droplet epitaxy quantum dots by cathodoluminescence
Creators: name: Nogues, Gilles
name: Merotto, Quentin
name: BACHELIER, Guillaume
name: Lee, Eun Hye
name: Song, Jin Dong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We use cathodoluminescence to locate droplet epitaxy quantum dots with a precision $\lesssim$ nm before fabricating nanoantennas in their vicinity by electron-beam lithography. Cathodoluminescence is further used to evidence the effect of the antennas as a function of their length on the light emitted by the dot. Experimental results are in good agreement with numerical simulations of the structures.
Political Resilience in Times of Economic Crisis and Local Government Reforms
Creators: name: Psycharis, Yannis
name: Kallioras, Dimitris
name: Psatha, Evangelia
Publisher: name: Hannover : Leibniz Universität Hannover, Institut für Umweltplanung
Year: 2019
Subjects: subject: Economic crisis
subject: Resilience
subject: Urbanism
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung

description: Economic crisis and fiscal consolidation policy in Greece had a tremendous impact on local government finances and the provision of services and local public goods to citizens and localities. The implementation of these policies resulted in deterioration of service delivery and caused serious discontent towards the local representatives. As a result, the local political system and the representatives were unable to sustain the political discontent of the local people who voted against them. The chapter presents the implemented policy, the political discontent and the voting outcomes for the case of the Municipality of Volos and examines the resilience of the local political system under the pressures for reforms and the implementation of restrictive policies during the period 2010-2014.
i-Razor: A Differentiable Neural Input Razor for Feature Selection and Dimension Search in DNN-Based Recommender Systems
Creators: name: Yao, Yao
name: Liu, Bin
name: He, Haoxun
name: Sheng, Dakui
name: Wang, Ke
name: Xiao, Li
name: Cao, Huanhuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Input features play a crucial role in DNN-based recommender systems with thousands of categorical and continuous fields from users, items, contexts, and interactions. Noisy features and inappropriate embedding dimension assignments can deteriorate the performance of recommender systems and introduce unnecessary complexity in model training and online serving. Optimizing the input configuration of DNN models, including feature selection and embedding dimension assignment, has become one of the essential topics in feature engineering. However, in existing industrial practices, feature selection and dimension search are optimized sequentially, i.e., feature selection is performed first, followed by dimension search to determine the optimal dimension size for each selected feature. Such a sequential optimization mechanism increases training costs and risks generating suboptimal input configurations. To address this problem, we propose a differentiable neural input razor (i-Razor) that enables joint optimization of feature selection and dimension search. Concretely, we introduce an end-to-end differentiable model to learn the relative importance of different embedding regions of each feature. Furthermore, a flexible pruning algorithm is proposed to achieve feature filtering and dimension derivation simultaneously. Extensive experiments on two large-scale public datasets in the Click-Through-Rate (CTR) prediction task demonstrate the efficacy and superiority of i-Razor in balancing model complexity and performance.
description: Accepted by IEEE Transactions on Knowledge and Data Engineering (TKDE)
2023-05-23 supplemental_combined_figures_and_tables.pdf from The genome of the reef-building glass sponge Aphrocallistes vastus provides insights into silica biomineralization
Creators: name: Francis, Warren R.
name: Eitel, Michael
name: Vargas, Sergio
name: Garcia-Escudero, Catalina A.
name: Conci, Nicola
name: Deister, Fabian
name: Mah, Jasmine L.
name: Guiglielmoni, Nadège
name: Krebs, Stefan
name: Blum, Helmut
name: Leys, Sally P.
name: Wörheide, Gert
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 60408 Genomics

description: Combined Supplementary Figures and Tables
Giant optomechanical spring effect in plasmonic nano- and picocavities probed by surface-enhanced Raman scattering
Creators: name: Jakob, Lukas A.
name: Deacon, William M.
name: Zhang, Yuan
name: de Nijs, Bart
name: Pavlenko, Elena
name: Hu, Shu
name: Carnegie, Cloudy
name: Neuman, Tomas
name: Esteban, Ruben
name: Aizpurua, Javier
name: Baumberg, Jeremy J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Molecular vibrations couple to visible light only weakly, have small mutual interactions, and hence are often ignored for non-linear optics. Here we show the extreme confinement provided by plasmonic nano- and pico-cavities can sufficiently enhance optomechanical coupling so that intense laser illumination drastically softens the molecular bonds. This optomechanical pumping regime produces strong distortions of the Raman vibrational spectrum related to giant vibrational frequency shifts from an optical spring effect which is hundred-fold larger than in traditional cavities. The theoretical simulations accounting for the multimodal nanocavity response and near-field-induced collective phonon interactions are consistent with the experimentally-observed non-linear behavior exhibited in the Raman spectra of nanoparticle-on-mirror constructs illuminated by ultrafast laser pulses. Further, we show indications that plasmonic picocavities allow us to access the optical spring effect in single molecules with continuous illumination. Driving the collective phonon in the nanocavity paves the way to control reversible bond softening, as well as irreversible chemistry.
Interactions of CO and O2 with Ir(110) Surfaces
Creators: name: Christmann, K.
name: Ertl, G.
Publisher: name: Berlin : De Gruyter
Year: 1973
Subjects: subject: CO
subject: O2
subject: LEED/Auger studies
subject: Ir(110)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: LEED/Auger studies with Ir(110) revealed that the clean surface is reconstructed to a 1X2-structure, whereas the normal 1 X 1-structure can be stabilized by small amounts of carbon impurities. Carbon monoxide adsorbs with a mean heat of adsorption of 37 kcal/mole and forms a 2X1-structure without affecting the substrate “extra” diffraction spots. Adsorbed oxygen forms 2X2-and c2X2-structures, whereby the diffraction features of the 1 X 2-structure disappear indicating that oxygen atoms cause place exchange process of the Ir surface atoms which is not the case with adsorbed CO. Carbon monoxide tends to dissociate at elevated temperatures. The catalytic oxidation of CO proceeds in a manner similar to that found with Pd and Pt surfaces. © 1973, Walter de Gruyter. All rights reserved.
Noise-assisted quantum transport and computation
Creators: name: de Falco, Diego
name: Tamascelli, Dario
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The transmission of an excitation along a spin chain can be hindered by the presence of small fixed imperfections that create trapping regions where the excitation may get caught (Anderson localization). A certain degree of noise, ensuing from the interaction with a thermal bath, allows to overcome localization (noise-assisted transport). In this paper we investigate the relation between noise-assisted transport and (quantum) computation. In particular we prove that noise does assist classical computation on a quantum computing device but hinders the possibility of creating entanglement.
description: 11 pages, 7 figures
Integral points on symmetric affine cubic surfaces
Creators: name: Uppal, H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We show that if $f(u)\in \mathbb{Z}[u]$ is a monic cubic polynomial, then for all but finitely many $n\in \mathbb{Z}$ the affine cubic surface $f(u_{1})+f(u_{2})+f(u_{3})=n \subset \mathbb{A}^{3}_{\mathbb{Z}}$ has no integral Brauer-Manin obstruction to the Hasse principle.
Hybrid quantum-classical reservoir computing of thermal convection flow
Creators: name: Pfeffer, Philipp
name: Heyder, Florian
name: Schumacher, Jörg
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We simulate the nonlinear chaotic dynamics of Lorenz-type models for a classical two-dimensional thermal convection flow with 3 and 8 degrees of freedom by a hybrid quantum--classical reservoir computing model. The high-dimensional quantum reservoir dynamics are established by universal quantum gates that rotate and entangle the individual qubits of the tensor product quantum state. A comparison of the quantum reservoir computing model with its classical counterpart shows that the same prediction and reconstruction capabilities of classical reservoirs with thousands of perceptrons can be obtained by a few strongly entangled qubits. We demonstrate that the mean squared error between model output and ground truth in the test phase of the quantum reservoir computing algorithm increases when the reservoir is decomposed into separable subsets of qubits. Furthermore, the quantum reservoir computing model is implemented on a real noisy IBM quantum computer for up to 7 qubits. Our work thus opens the door to model the dynamics of classical complex systems in a high-dimensional phase space effectively with an algorithm that requires a small number of qubits.
description: 15 pages, 7 figures
Forschungsdaten managen - Anforderungen, Methoden, Hilfsmittel
Creators: name: Neumann, Janna
name: Soßna, Volker
Publisher: name: Leibniz Universität Hannover
Year: 2018
Subjects: subject: Forschungsdaten
subject: Forschungsdatenmanagement
subject: Schulung
subject: Kurs
subject: hochschulübergreifende Weiterbildung
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: Dies sind die Folien und Arbeitsmaterialien für eine Schulung im Rahmen der hochschulübergreifenden Weiterbildung in Niedersachsen vom 15. März 2018. Kursbeschreibung: Ein professioneller Umgang mit Forschungsdaten gewinnt im wissenschaftlichen Alltag ebenso wie in der politischen Diskussion immer mehr an Bedeutung. Mit diesem Kurs verschaffen Sie sich einen Überblick über die verschiedenen Aspekte des Forschungsdatenmanagements und erhalten praktische Tipps für Ihre Arbeit. Es gehört zur guten Wissenschaftlichen Praxis, Forschungsdaten, die Grundlage veröffentlichter Ergebnisse sind, mindestens 10 Jahre lang so aufzubewahren, dass sie lesbar und verstehbar bleiben. Das setzt eine angemessene Dokumentation, geeignete Dateiformate und einen regelmäßigen Austausch der physischen Datenträger voraus. Viele Drittmittelgeber und Wissenschaftsorganisationen erwarten inzwischen, dass Daten nicht nur archiviert, sondern öffentlich zugänglich gemacht werden. Dafür sollten Sie in geeigneten Datenrepositorien abgelegt und mit einem eindeutigen und permanenten Identifier, wie z.B. einem DOI, versehen werden. Wie die Dokumentation, Archivierung und Veröffentlichung funktioniert und welche Hilfsmittel es gibt, erfahren Sie in diesem Kurs. Inhalte: Überblick über die Teilaspekte des Forschungsdatenmanagements: Was gehört alles dazu? Anforderungen von Drittmittelgebern und Wissenschaftsorganisationen: Was muss ich beachten? Daten publizieren: Wie geht das und was habe ich davon? Der Datenmanagementplan: So plane ich den Umgang mit meinen Daten Unterstützungsangebote: Welche Dienste kann ich nutzen und wer hilft mir weiter?
Orchis morio L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 0. Morio L. Cat. 335. Obere Höhengrenze festzustellen. (Die Angabe des Cat.: 1800 m ist sicher irrig.) Aus dem Unter- und IVTittelwallis sind angegeben die var. nana Chenev. (z. B.: Saxé bei Fully [GAMS], Chäteauneuf bei Sitten [GUYOT]), var. robustior Chenev., var. caucasica K. Koch (letztere nach GAMShäufig) und var. picta (Loisel.) Rchb. f.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Equivariant Schrödinger Maps in two spatial dimensions: the $\H^2$ target
Creators: name: Bejenaru, Ioan
name: Ionescu, Alexandru
name: Kenig, Carlos E.
name: Tataru, Daniel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider equivariant solutions for the Schrödinger map problem from $\R^{2+1}$ to $\H^2$ with finite energy and show that they are global in time and scatter.
description: arXiv admin note: substantial text overlap with arXiv:1112.6122
Search for flavour-changing neutral-current couplings between the top quark and the photon with the ATLAS detector at $\sqrt{s} = 13$ TeV
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This letter documents a search for flavour-changing neutral currents (FCNCs), which are strongly suppressed in the Standard Model, in events with a photon and a top quark with the ATLAS detector. The analysis uses data collected in $pp$ collisions at $\sqrt{s} = 13$ TeV during Run 2 of the LHC, corresponding to an integrated luminosity of 139 fb$^{-1}$. Both FCNC top-quark production and decay are considered. The final state consists of a charged lepton, missing transverse momentum, a $b$-tagged jet, one high-momentum photon and possibly additional jets. A multiclass deep neural network is used to classify events either as signal in one of the two categories, FCNC production or decay, or as background. No significant excess of events over the background prediction is observed and 95% CL upper limits are placed on the strength of left- and right-handed FCNC interactions. The 95% CL bounds on the branching fractions for the FCNC top-quark decays, estimated from both top-quark production and decay, are $\mathcal{B}(t\rightarrow uγ) < 0.85 \times 10^{-5}$ and $\mathcal{B}(t\to cγ) < 4.2 \times 10^{-5}$ for a left-handed $tqγ$ coupling, and $\mathcal{B}(t\to uγ) < 1.2 \times 10^{-5}$ and $\mathcal{B}(t\to cγ) < 4.5 \times 10^{-5}$ for a right-handed coupling.
description: 46 pages in total, author list starting page 28, 5 figures, 2 tables. All figures including auxiliary figures are available at: https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2019-19/. This version includes modifications described in the erratum that can be found at: https://doi.org/10.1016/j.physletb.2023.138286
σ-Galois theory of linear difference equations
Creators: name: Ovchinnikov, Alexey
name: Wibmer, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Commutative Algebra (math.AC)
subject: Complex Variables (math.CV)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 12H10, 33B15, 39A10, 39A13

description: We develop a Galois theory for systems of linear difference equations with an action of an endomorphism σ. This provides a technique to test whether solutions of such systems satisfy σ-polynomial equations and, if yes, then characterize those. We also show how to apply our work to study isomonodromic difference equations and difference algebraic properties of meromorphic functions.
Entanglement-enhanced quantum ranging in the near-Earth spacetime
Creators: name: Liu, Qianqian
name: Wen, Cuihong
name: Jing, Jiliang
name: Wang, Jieci
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a quantum ranging protocol to determine the distance between an observer and a target at the line of sight in the near-Earth curved spacetime. Unlike the quantum illumination scheme, here we employ multiple quantum hypothesis testing to decide the presence and location of the target at the same time. In the present protocol, the gravity of the Earth influences the propagation of photons and the performance of quantum ranging. We find that the maximum potential advantages of the quantum ranging strategy in the curved spacetime outperform its flat spacetime counterpart. This is because the effect of gravitational red-shift and blue-shift on the entangled signal photons can be canceled out, while the thermal photons only suffers from the gravitational blue-shift effect. We also show that the number of transmitted modes can promote the maximum potential advantage of the quantum ranging tasks. The maximum potential advantage of quantum ranging in the curved spacetime can not be raised sharply by dividing the range into multiple slices.
description: 15 pages, 4 figures
Emerging Zoonotic Pathogens at the Human-Wildlife Interface in Protected Areas: Wild Game in the Southeastern United States and Bushmeat in Northern Uganda
Creators: name: Dell, B
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat

description: (Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Research Offices As Vital Factors In The Implementation Of Research Data Management Strategies
Creators: name: Hauck, Reingis
Publisher: name: Leibniz Universität Hannover
Year: 2017
Subjects: subject: RDM
subject: Research Data Management
subject: Research Management
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: The presentation describes the vital role of staff in the research office in the implementation of the research data management strategy at a German university, Leibniz Universität Hannover, and resulting new roles and responsibilities.The university's research data management strategy includes the establishment of an institutional data repository as well as a comprehensive support structure ranging from guidance to in-depth consultancy throughout the data life cycle provided by a service unit composed of staff in the research office, the library and IT services. In order to achieve a cultural change in the researchers' behavior the main emphasis in the implementation strategy is placed on an early contact with researchers in the research project's life cycle. An early contact with researchers in the project planning phase gives the opportunity to engage in awareness building for data managing planning (and depositing data in the repository at the end of the project) with at the same time the provision of support. For this reason a new member was introduced in the research office to give comprehensive guidance and support in data managing planning during the grant application phase and the subsequent project lifetime. The key role of the research office in advocating research relevant policies, e.g. policies on best practices in training earl y career researchers as well as commercialization etc., should be taken into account for a better reach out. Further development of training and re-skilling of staff in research offices is needed which also takes into account relevant specific national characteristics.Not only libraries and IT services should embrace the research office as a partner in the successful implementation of an institutional research data management strategy, but also research managers should recognize their role and this new responsibility.
title: Die steinzeitlichen Funde und die spätglaziale Nagetierschicht aus der Kleinen Scheuer am Hohlenstein im Lonetal
Creators: name: Hahn, Joachim
name: Koenigswald, Wighart Von
name: Schröter, Peter
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
A New Multiferroic State with Large Electric Polarization in Tensile Strained TbMnO3
Creators: name: Hou, Yusheng
name: Yang, Jihui
name: Gong, Xingao
name: Xiang, Hongjung
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By performing first-principles calculations, we systematically explore the effect of epitaxial strain on the structure and properties of multiferroic TbMnO3. We show that, although the unstrained bulk TbMnO3 displays a non-collinear antiferromagnetic spin order, TbMnO3 can be ferromagnetic under compressive strain, in agreement with the experimental results on TbMnO3 grown on SrTiO3. By increasing the tensile strain up to 5%, we predict that TbMnO3 transforms into a new multiferroic state with a large ferroelectric polarization,two orders of magnitude larger than that in the unstrained bulk, and with a relatively high Neel temperature E-type antiferromagnetic order. We also find that the ferroelectric domain and antiferromagnetic domain are interlocked with each other, thus an external electric field can switch the ferroelectric domain and the antiferromagnetic domain simultaneously. Our work demonstrates that strain engineering can be used to improve the multiferroic properties of TbMnO3.
title: Jozef Vladár: Die Dolche in der Slowakei. Prähistorische Bronzefunde, Abteilung VI Band 3. München 1974
Creators: name: Schickler, Hilmar
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Jozef Vladár: Die Dolche in der Slowakei. Prähistorische Bronzefunde, Abteilung VI Band 3. C. H. Beck'sche Verlagsbuchhandlung, München 1974. X, 61 Seiten, 16 Tafeln.
Rapid remediation of sandy sulfuric subsoils using straw-derived dissolved organic matter
Creators: name: Kölbl, Angelika
name: Kaiser, Klaus
name: Thompson, Aaron
name: Mosley, Luke
name: Fitzpatrick, Rob
name: Marschner, Petra
name: Sauheitl, Leopold
name: Mikutta, Robert
Publisher: name: New York, NY [u.a.] : Elsevier
Year: 2022
Subjects: subject: Acid sulfate soils
subject: Anoxic incubation
subject: Jarosite transformation
subject: Organic matter addition
subject: Reductive dissolution
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: When acid sulfate soils dry, oxidation of pyrite can cause acidification and formation of iron (Fe) oxyhydroxy sulfate phases such as jarosite. Remediation via re-establishment of reducing conditions requires submergence and addition of biodegradable organic carbon (OC) to stimulate activity of reducing bacteria. Addition of fresh plant litter has been shown to activate reducing bacteria, likely due to the release of readily available soluble organic matter. However, the effectiveness of soluble organic matter from plant residues has not been tested yet. Here, we tested the potential of wheat straw-derived dissolved OC (DOC) for remediation of a sandy sulfuric (pH < 4) soil. In a second set of experiments, we used combinations of wheat straw-derived DOC with lactate, which is a preferred substrate of sulfate reducing bacteria. All incubation experiments were conducted in the dark at 20 °C. The results showed that addition of DOC from wheat straw induces reduction reactions and rapidly increases the pH by 2–3 units after 3 weeks of incubation under submerged conditions. Mössbauer spectroscopy and X-ray diffraction revealed that jarosite was lost after 200 days of anoxic incubation. Short range-ordered FeIII oxyhydroxides were formed, most likely by FeII-catalysed transformation of jarosite. A second addition of DOC, as well as the addition of lactate, resulted in the almost complete loss of jarosite with increased proportions of FeIII oxyhydroxides in the remaining solids, but not in the formation of FeII sulfides. The formation of FeIII oxyhydroxides reduces the risk of both Fe leaching and renewed acidification in the event of future oxidation. The results suggest that deep injection of wheat straw-derived DOC is a promising approach for rapid and sustainable remediation of sandy sulfuric subsoils. © 2022 The Authors
Universal entanglement signatures of quantum liquids as a guide to fermionic criticality
Creators: name: Patra, Siddhartha
name: Mukherjee, Anirban
name: Lal, Siddhartha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: An outstanding challenge involves understanding the many-particle entanglement of liquid states of quantum matter that arise in systems of interacting electrons. The Fermi liquid (FL) in $D$ spatial dimensions shows a violation of the area-law in real-space entanglement entropy of a subsystem (of length $L$), $S_{EE} \sim L^{D-1}\ln L$, widely believed to be a hallmark signature of the ground state of a gapless quantum critical system of interacting fermions. In this work, we apply a $T=0$ renormalisation group approach to a prototype of the FL in momentum (or, $k$)-space, unveiling thereby the RG relevant quantum fluctuations (due to forward and tangential scattering) from which long-range entanglement arises. A similar analysis of non-Fermi liquids such as the 2D marginal Fermi liquid (MFL) and the 1D Tomonaga-Luttinger liquid (TLL) reveals a universal logarithmic violation of the area-law in gapless electronic liquids for a subsystem defined within a $k$-space window (of size $Λ$) proximate to the Fermi surface, with a proportionality constant that depends on the nature of the underlying Fermi surface. We extend this analysis to the gapped quantum liquids emergent from the destabilisation of the Fermi surface by quantum fluctuations arising from backscattering processes. Indeed, we find that the $k$-space entanglement signatures of gapped quantum liquids appear to be governed by the nature of the Fermi surface (e.g., nested or not) from which they emerge, as well as the nature of their parent gapless metallic liquid (e.g., FL, MFL etc.). This is confirmed by our finding an enhanced entanglement entropy for the nodal MFL present at the quantum critical point recently discovered in the 2D Hubbard model at optimal hole-doping. Our work thus paves the way for an entanglement based classification of quantum liquids emergent from the criticality of interacting fermionic matter.
description: 9 pages, 6 figures, 77 References in main manuscript. Supplementary Materials also included
The effect of the number of mobile nodes on varying speeds of manets
Creators: name: Tengviel, John
name: Diawuo, K.
name: Dotche, K. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Mobile Ad hoc Networks are dynamic networks populated by mobile devices, or mobile nodes.The Mobile Nodes are free to move anywhere and at any time. The population of the nodes may have some influence on the mobility rate of the mobile nodes. This paper presents simulation results using Matrix Laboratory software. The study investigates the influence of mobile nodes parameters such as number of nodes on the nodes speeds and nodes distribution in a given area. The results have indicated that the number of mobile nodes have impact on the speeds of the nodes in a location.
description: 10 pages, 4 figures
title: Wilhelm Schüle: Die Meseta-Kulturen der Iberischen Halbinsel. Mediterrane und eurasische Elemente in früheisenzeitlichen Kulturen Südwesteuropas. Madrider Forschungen Band 3. Berlin 1969
Creators: name: Kalb, Philine
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Wilhelm Schüle: Die Meseta-Kulturen der Iberischen Halbinsel. Mediterrane und eurasische Elemente in früheisenzeitlichen Kulturen Südwesteuropas. Madrider Forschungen Band 3. Walter de Gruyter, Berlin 1969. Text- und Tafelband. XVII, 318 Seiten, 191 Tafeln, 53 Karten.
Photoelectrochemical and theoretical investigations of spinel type ferrites (MxFe3-xO4) for water splitting: A mini-review
Creators: name: Taffa, Dereje H.
name: Dillert, Ralf
name: Ulpe, Anna C.
name: Bauerfeind, Katharina C.L.
name: Bredow, Thomas
name: Bahnemann, Detlef W.
name: Wark, Michael
Publisher: name: Bellingham, WA : S P I E - International Society for Optical Engineering
Year: 2017
Subjects: subject: bandgap calculations
subject: electronic magnetic properties
subject: ferrites
subject: photoelectrochemistry
subject: water splitting
subject: Conversion efficiency
subject: Electrochemistry
subject: Electromagnetic wave absorption
subject: Electronic structure
subject: Energy conversion
subject: Energy efficiency
subject: Energy gap
subject: Ferrite
subject: Ferrites
subject: Hydrogen storage
subject: Iron oxides
subject: Iron research
subject: Light
subject: Light absorption
subject: Magnetic properties
subject: Manganese
subject: Oxide semiconductors
subject: Photoelectrochemical cells
subject: Semiconductor materials
subject: Solar power generation
subject: Surface treatment
subject: Water absorption
subject: Inverse spinel structures
subject: Photo-electrochemistry
subject: Production of hydrogen
subject: Renewable energy storages
subject: Semi-conducting property
subject: Theoretical investigations
subject: Visible light absorption
subject: Water splitting
subject: Hydrogen production
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt

description: Solar-assisted water splitting using photoelectrochemical cells (PECs) is one of the promising pathways for the production of hydrogen for renewable energy storage. The nature of the semiconductor material is the primary factor that controls the overall energy conversion efficiency. Finding semiconductor materials with appropriate semiconducting properties (stability, efficient charge separation and transport, abundant, visible light absorption) is still a challenge for developing materials for solar water splitting. Owing to the suitable bandgap for visible light harvesting and the abundance of iron-based oxide semiconductors, they are promising candidates for PECs and have received much research attention. Spinel ferrites are subclasses of iron oxides derived from the classical magnetite (FeIIFe2 IIIO4) in which the FeII is replaced by one (some cases two) additional divalent metals. They are generally denoted as MxFe3-xO4 (M=Ca, Mg, Zn, Co, Ni, Mn, and so on) and mostly crystallize in spinel or inverse spinel structures. In this mini review, we present the current state of research in spinel ferrites as photoelectrode materials for PECs application. Strategies to improve energy conversion efficiency (nanostructuring, surface modification, and heterostructuring) will be presented. Furthermore, theoretical findings related to the electronic structure, bandgap, and magnetic properties will be presented and compared with experimental results.
Supplemental Figure 1 from Hummingbird ingestion of low-concentration ethanol within artificial nectar
Creators: name: Choi, Julia
name: Lee, Lilianne
name: Maro, Aleksey
name: Corl, Ammon
name: McGuire, Jimmy A.
name: Bowie, Rauri C. K.
name: Dudley, Robert
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Rates of either nectar consumption (in g/h; open circles) or total ethanol consumption (in mg/h; closed circles) by individual hummingbirds for all binary choice trials between two solutions of varying ethanol concentrations, as indicated on the abscissa. No ethanol consumption is indicated for the [0%–0%] trial as it was presumed to be absent in these solutions. For values of rates of ethanol consumption, individual bird identities (i.e., #1, 2, or 3) are indicated next to the data points.
The open Haldane-Shastry chain: thermodynamics and criticality
Creators: name: Finkel, Federico
name: González-López, Artemio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the thermodynamics and criticality of the su($m|n$) Haldane-Shastry chain of $BC_N$ type with a general chemical potential term. We first derive a complete description of the spectrum of this model in terms of $BC_N$-type motifs, from which we deduce a representation for the partition function as the trace of a product of site-dependent transfer matrices. In the thermodynamic limit, this formula yields a simple expression for the free energy per spin in terms of the Perron-Frobenius eigenvalue of the continuum limit of the transfer matrix. Evaluating this eigenvalue we obtain closed-form expressions for the thermodynamic functions of the chains with $m,n\le2$. Using the motif-based description of the spectrum derived here, we study in detail the ground state of these models and their low energy excitations. In this way we identify the critical intervals in chemical potential space and compute their corresponding Fermi velocities. By contrast with previously studied models of this type, we find in some cases two types of low energy excitations with linear energy-quasimomentum relation. Finally, we determine the central charge of all the critical phases by analyzing the low-temperature behavior of the expression for the free energy per spin.
description: 46 pages, 6 figures, typeset in LaTeX
title: Gerhard Fingerlin: Die alamannischen Gräberfelder von Güttingen und Merdingen in Südbaden. Germanische Denkmäler der Völkerwanderungszeit Serie A Band 12. Berlin 1971
Creators: name: Hübener, Wolfgang
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Gerhard Fingerlin: Die alamannischen Gräberfelder von Güttingen und Merdingen in Südbaden. Germanische Denkmäler der Völkerwanderungszeit Serie A Band 12. Walter de Gruyter, Berlin 1971. XIV, 308 Seiten, 126 Tafeln und 2 Beilagen.
Polarization Effects in Two-Photon Free-Free Transitions in Laser-Assisted Electron-Hydrogen Collisions
Creators: name: Cionga, Aurelia
name: Buica, Gabriela
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Two-photon free-free transitions in elastic laser-assisted electron-hydrogen collisions are studied in the domain of high scattering energies and low or moderate field intensities, in the third order of perturbation theory, taking into account all the involved Feynman diagrams. Based on the analytical expressions of the transition amplitudes, the differential cross sections for two-photon absorption/emission are computed at impact energy $E_i=100$ eV. The effect of field polarizations on the angular distribution and on the frequency dependence of the differential cross section is analyzed.
Optical properties of single ZnTe nanowires grown at low temperature
Creators: name: Artioli, Alberto
name: Rueda-Fonseca, Pamela
name: Stepanov, Petr
name: Bellet-Amalric, Edith
name: Hertog, Martien Den
name: Bougerol, Catherine
name: Genuist, Yann
name: Donatini, Fabrice
name: André, Régis
name: Nogues, Gilles
name: Kheng, Kuntheak
name: Tatarenko, Serge
name: Ferrand, David
name: Cibert, Joel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Optically active gold-catalyzed ZnTe nanowires have been grown by molecular beam epitaxy, on a ZnTe(111) buffer layer, at low temperature 350\degree under Te rich conditions, and at ultra-low density (from 1 to 5 nanowires per micrometer^{2}. The crystalline structure is zinc blende as identified by transmission electron microscopy. All nanowires are tapered and the majority of them are <111> oriented. Low temperature micro-photoluminescence and cathodoluminescence experiments have been performed on single nanowires. We observe a narrow emission line with a blue-shift of 2 or 3 meV with respect to the exciton energy in bulk ZnTe. This shift is attributed to the strain induced by a 5 nm-thick oxide layer covering the nanowires, and this assumption is supported by a quantitative estimation of the strain in the nanowires.
Data-Driven Denoising of Stationary Accelerometer Signals
Creators: name: Engelsman, Daniel
name: Klein, Itzik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Modern navigation solutions are largely dependent on the performances of the standalone inertial sensors, especially at times when no external sources are available. During these outages, the inertial navigation solution is likely to degrade over time due to instrumental noises sources, particularly when using consumer low-cost inertial sensors. Conventionally, model-based estimation algorithms are employed to reduce noise levels and enhance meaningful information, thus improving the navigation solution directly. However, guaranteeing their optimality often proves to be challenging as sensors performance differ in manufacturing quality, process noise modeling, and calibration precision. In the literature, most inertial denoising models are model-based when recently several data-driven approaches were suggested primarily for gyroscope measurements denoising. Data-driven approaches for accelerometer denoising task are more challenging due to the unknown gravity projection on the accelerometer axes. To fill this gap, we propose several learning-based approaches and compare their performances with prominent denoising algorithms, in terms of pure noise removal, followed by stationary coarse alignment procedure. Based on the benchmarking results, obtained in field experiments, we show that: (i) learning-based models perform better than traditional signal processing filtering; (ii) non-parametric kNN algorithm outperforms all state of the art deep learning models examined in this study; (iii) denoising can be fruitful for pure inertial signal reconstruction, but moreover for navigation-related tasks, as both errors are shown to be reduced up to one order of magnitude.
description: 10 pages, 15 figures, 8 tables