cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Investigation on spatial auditory perception using non-uniform spatial distribution of binaural room impulse responses
Creators: name: Werner, Stephan
name: Klein, Florian
name: Götz, Georg
Publisher: name: TU Ilmenau
Year: 2019
Subjects: subject: 620

description: For spatial audio reproduction in the context of virtual and augmented reality, a position-dynamic binaural synthesis can be used to reproduce the ear signals for a moving listener. A set of binaural room impulse responses (BRIRs) is required for each possible position of the listener in the room. The required spatial resolution of the BRIR positions can be estimated by spatial auditory perception thresholds. If the resolution is too low, jumps in perception of direction and distance and coloration effects occur. This contribution presents an evaluation of spatial audio quality using different spatial resolutions of the position of the used BRIRs. The evaluation is performed with a moving listener. The test persons evaluate any abnormalities in the spatial audio quality. The result is a comparison of the quality and the spatial resolution of the various conditions used.
description: Audio for Virtual, Augmented and Mixed Realities: Proceedings of ICSA 2019 ; 5th International Conference on Spatial Audio ; September 26th to 28th, 2019, Ilmenau, Germany, p. 137
Depth properties of scaled attachment random recursive trees
Creators: name: Devroye, Luc
name: Fawzi, Omar
name: Fraiman, Nicolas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05, 05C05

description: We study depth properties of a general class of random recursive trees where each node i attaches to the random node iX_i and X_0, ..., X_n is a sequence of i.i.d. random variables taking values in [0,1). We call such trees scaled attachment random recursive trees (SARRT). We prove that the typical depth D_n, the maximum depth (or height) H_n and the minimum depth M_n of a SARRT are asymptotically given by D_n \sim μ^{-1} \log n, H_n \sim α_{\max} \log n and M_n \sim α_{\min} \log n where μ, α_{\max} and α_{\min} are constants depending only on the distribution of X_0 whenever X_0 has a density. In particular, this gives a new elementary proof for the height of uniform random recursive trees H_n \sim e \log n that does not use branching random walks.
description: 31 pages, 4 figures
Die Wittekindsburg bei Rulle, Kr. Osnabrück
Creators: name: Heinemann, Bruno
name: Gundlach, Heinrich
name: Peters, Hans-Günter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
Kleine Editionen: Wichtig für die Berufswahl
Creators: name: Bemme, Jens
Publisher: name: Zenodo
Year: 2023
Subjects: Berufswahl
Die Gartenlaube
Die Datenlaube
19. Jahrhundert
Wikisource
Kleine Editionen

description: Wachsendes Verzeichnis von Texten, Büchern, Rezensionen und Referenzen, die seit etwa 1853 erschienen, um die Berufswahl für Söhne (im Staatsdienst und später auch die der Frau) zu erleichtern. Kleine Editionen sind bisher Experimente und Fallstudien für Quellenpräsentationen mit offenen Werkzeugen (die Blogplattform de.hypotheses.org/, Wikisource, Zenodo und Scholia), mit offenen Daten, ihren offenen Metadaten und verlinkten Kontexten: seriell produziert, also fortgeschrieben und präsentiert, um Themen und digitale Methoden auszuloten. Wikidata: (Q117461581)
The decay constant of the holographic techni-dilaton and the 125 GeV boson
Creators: name: Elander, Daniel
name: Piai, Maurizio
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We critically discuss the possibility that the 125 GeV boson recently discovered at the LHC is the holographic techni-dilaton, a composite state emerging from a strongly-coupled model of electroweak symmetry breaking. This composite state differs from the SM for three main reasons. Its decay constant is in general larger than the electroweak scale, hence suppressing all the couplings to standard model particles with respect to an elementary Higgs boson, with the exception of the coupling to photons and gluons, which is expected to be larger than the standard-model equivalent. We discuss three classes of questions. Is it possible to lower the decay constant, by changing the geometry of the holographic model? Is it possible to lower the overall scale of the strong dynamics, by modifying the way in which electroweak symmetry breaking is implemented in the holographic model? Is there a clear indication in the data that production mechanisms other than gluon-gluon fusion have been observed, disfavoring models in which the holographic techni-dilaton has a large decay constant? We show that all of these questions are still open, given the present status of theoretical as well as phenomenological studies, and that at present the techni-dilaton hypothesis yields a fit to the data which is either as good as the elementary Higgs hypothesis, or marginally better, depending on what sets of data are used in the fit. We identify clear strategies for future work aimed at addressing these three classes of open questions. In the process, we also compute the complete scalar spectrum of the two-scalar truncation describing the GPPZ model, as well as the decay constant of the holographic techni-dilaton in this model.
description: 23 pages, 7 figures. Two paragraphs of general comments added. Several references added. Version accepted for publication
Untersuchungen in der Trasse des Elbe-Seitenkanals
Creators: name: Redaktion, Die
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
title: Real-time Estimation of Reverberation Time for Selection of suitable binaural room impulse responses
Creators: name: Klein, Florian
name: Neidhardt, Annika
name: Seipel, Marius
Publisher: name: TU Ilmenau
Year: 2019
Subjects: subject: 620

description: The aim of auditory augmented reality is to create a highly immersive and plausible auditory illusion combining virtual audio objects and scenarios with the real acoustic surrounding. For this use case it is necessary to estimate the acoustics of the current room. A mismatch between real and simulated acoustics will easily be detected by the listener and will probably lead to In-head localization or an unrealistic acoustic envelopment of the virtual sound sources. This publication investigates State-of-the-Art algorithms for blind reverberation time estimation which are commonly used for speech enhancement algorithms or speech dereverberation and applies them to binaural ear signals. The outcome of these algorithms can be used to select the most appropriate room out of a room database for example. A room database could include pre-measured or simulated binaural room impulse responses which could directly be used to realize a binaural reproduction. First results show promising results combined with low computational effort. Further strategies for enhancing the used method are proposed in order to create a more precise reverberation time estimation.
description: Audio for Virtual, Augmented and Mixed Realities: Proceedings of ICSA 2019 ; 5th International Conference on Spatial Audio ; September 26th to 28th, 2019, Ilmenau, Germany, p. 145
Recurrence relations for toric N=1 superconformal blocks
Creators: name: Hadasz, Leszek
name: Jaskolski, Zbigniew
name: Suchanek, Paulina
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: General 1-point toric blocks in all sectors of N=1 superconformal field theories are analyzed. The recurrence relations for blocks coefficients are derived by calculating their residues and large $Δ$ asymptotics.
title: Sweet area size for the envelopment of a recursive and a non-recursive diffuseness rendering approach
Creators: name: Blochberger, Matthias
name: Zotter, Franz
name: Frank, Matthias
Publisher: name: TU Ilmenau
Year: 2019
Subjects: subject: 620

description: We compare the extent of the usable audience area of two algorithms that produce diffusely enveloping, multi-channel surround playback from a single-channel input. The FIR approach designs a set of random group-delay allpass filters to generate a set of minimally correlated playback signals. Canfield-Dafilou presented a frequency-dependent maximum group delay value as a constraint to keep audible artifacts small, in studio environments. To enlarge the audience area in which an enveloping and diffuse listening experience is achieved, we relax this constraint while having to accept an unavoidable impression of spaciousness and reverberation. Consequently, the FIR approach naturally competes with IIR feedback-delay network as alternative approach. We conduct listening experiments to reveal quality and effectiveness of both methods, in particular regarding sweet area size and sound quality.
description: Audio for Virtual, Augmented and Mixed Realities: Proceedings of ICSA 2019 ; 5th International Conference on Spatial Audio ; September 26th to 28th, 2019, Ilmenau, Germany, p. 151
title: Mixed Realities: a live collaborative musical performance
Creators: name: Genovese, Andrea
name: Gospodarek, Marta
name: Roginska, Agnieszka
Publisher: name: TU Ilmenau
Year: 2019
Subjects: subject: 620

description: In the presented work, a live-rendered percussionist is transformed into a virtual game character and performs a piece along digital avatars created from recordings (audio and motion-capture) of other members of an ensemble, while audience members can observe the collaborative performance through VR headsets. To create a cohesive and compelling result, the auditory expectations of the listeners need to be considered in terms of acoustic integrity between real and virtual sources and spatial impression of each avatar performer. This paper presents an overview of the workflow and motivations behind this pilot experiment of a novel musical experience, laying down the foundations for future subjective studies into collaborative music performances using virtual and augmented reality headsets. Particular focus is given to the technical challenges concerning the audio material, the perspectives of each participant role, and the qualitative impressions of musicians and audience.
description: Audio for Virtual, Augmented and Mixed Realities: Proceedings of ICSA 2019 ; 5th International Conference on Spatial Audio ; September 26th to 28th, 2019, Ilmenau, Germany, p. 159
On Supercurrent Superfields and Fayet-Iliopoulos Terms in N=1 Gauge Theories
Creators: name: Arnold, Daniel
name: Derendinger, Jean-Pierre
name: Hartong, Jelle
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit the supermultiplet structure of Noether currents for N=1 supersymmetric gauge theories. Using superfield identities and the field equations we show how to derive a superfield equation for the divergences of the Noether currents in terms of the supercurrent and anomaly superfields containing 16_B+16_F components. We refer to this as the natural supercurrent structure as it is invariant under all local symmetries of the theory. It corresponds to the S-multiplet of Komargodski and Seiberg. We clarify the on/off-shell nature of the currents appearing in this multiplet and we study in detail the effect of specific improvement transformations leading to 1) a Ferrara-Zumino multiplet and to 2) a multiplet containing the new improved energy-momentum tensor of Callan, Coleman and Jackiw. Our methods also apply to supersymmetric gauge theories with a Fayet-Iliopoulos term. We construct the natural supercurrent multiplet for such a theory and show how to improve this to a formally gauge-invariant Ferrara-Zumino multiplet by introducing a non-dynamical chiral superfield S to ensure superfield gauge invariance. Finally we study the coupling of this theory to supergravity and show that S remains non-dynamical if the theory is R-symmetric and that S becomes propagating if the theory is not R-symmetric, leading to non-minimal 16_B+16_F supergravity.
description: 27 pages. References improved, minor text corrections. Version accepted for publication in Nuclear Physics B
Spontaneous symmetry restoration in a field theory at finite chemical potential in a toroidal topology
Creators: name: Linhares, C. A.
name: Malbouisson, A. P. C.
name: Malbouisson, J. M. C.
name: Roditi, I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the massive vector $N$-component $(λφ^{4})_{D}$ theory defined on a Euclidean space with a toroidal topology. Using recently developed methods to perform a compactification of a $d$-dimensional subspace at finite chemical potential, we treat jointly the effects of temperature and spatial boundaries, setting forth grounds for an analysis of spontaneous symmetry restoration driven by temperature and spatial boundaries as a function of the chemical potential. We restrict ourselves to d=2, which corresponds to the heated system confined between two parallel planes (separation $L$) in dimensions D=3 and D=4. We present results, in the large-$N$ limit, which exhibit how finite size and chemical potential affect spontaneous symmetry restoration.
description: Revtex, 6 pages, 3 figures, Version as will be published in Phys. Rev. D
Measurement of the Homogeneous Contact of a Unitary Fermi gas
Creators: name: Sagi, Yoav
name: Drake, Tara E.
name: Paudel, Rabin
name: Jin, Deborah S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By selectively probing the center of a trapped gas, we measure the local, or homogeneous, contact of a unitary Fermi gas as a function of temperature. Tan's contact, C, is proportional to the derivative of the energy with respect to the interaction strength, and is thus an essential thermodynamic quantity for a gas with short-range correlations. Theoretical predictions for the temperature dependence of C differ substantially, especially near the superfluid transition, Tc, where C is predicted to either sharply decrease, sharply increase, or change very little. For T/T_F>0.4, our measurements of the homogeneous gas contact show a gradual decrease of C with increasing temperature, as predicted by theory. We observe a sharp decrease in C at T/T_F=0.16, which may be due to the superfluid phase transition. While a sharp decrease in C below Tc is predicted by some many-body theories, we find that none of the predictions fully accounts for the data.
description: 5 pages, including a supplementary material section (10 pages). Rewriting of the introduction and discussion sections
title: Data set: BRIRs for position-dynamic binaural synthesis measured in two rooms
Creators: name: Neidhardt, Annika
Publisher: name: TU Ilmenau
Year: 2019
Subjects: subject: 620

description: Binaural room impulse responses were measured with a KEMAR 45BA head-and-torso-simulator. For the first data set, it was placed at different positions located on a line with a length of 2m in a 25 cm positional resolution and an azimuth resolution of 4 . Two source positions were considered in the setup, one in front of the line, one at the side. The same arrangement of source and receiver positions was realized in two different rooms, a quite dry listening laboratory and a quite reverberant seminar room. For the second data set, BRIRs and omni-directional RIRs were measured for a translation line with a length of 7.5m through the given seminar room. The data sets are valuable for realizing, testing and studying dynamic binaural walk-through scenarios in the two different rooms.
description: Audio for Virtual, Augmented and Mixed Realities: Proceedings of ICSA 2019 ; 5th International Conference on Spatial Audio ; September 26th to 28th, 2019, Ilmenau, Germany, p. 165
title: 3D audio for live events
Creators: name: Nipkow, Lasse
Publisher: name: TU Ilmenau
Year: 2019
Subjects: subject: 620

description: Many applications for 3D audio are aimed at live events. Several manufacturers of PA systems now offer solutions. These are not optimized for native 3D audio, but achieve an immersive impression due to placement of objects and added reverberation. To operate native 3D audio for live events, there are two key questions to consider: - How should the loudspeaker layout be chosen so that the audience gets the most impressive listening experience at a reasonable cost? - How should 3D audio content be designed so that it reaches the audience as effectively as possible through such PA systems? Two phenomena can be used for 3D audio: Envelopment and projection of sound sources in the front. The most impressive case is provided by a loudspeaker setup using imaginary connecting lines between the loudspeakers, which results in a volume. Vertical phantom sound sources presented in the front sound more natural than horizontal ones. The number of vertical front loudspeakers determins the resolution of the image. The wedge-shaped loudspeaker setup, that means with height loudspeakers in the front, meets both requirements minimally. The greater the listening area, the more loudspeakers are needed. The greater the distances of the loudspeakers to each other, the more audible holes are perceived, depending on the acoustics of the playback room.
description: Audio for Virtual, Augmented and Mixed Realities: Proceedings of ICSA 2019 ; 5th International Conference on Spatial Audio ; September 26th to 28th, 2019, Ilmenau, Germany, p. 171
title: Spatial audio production for immersive fulldome projections
Creators: name: Ott, Johannes
name: Tutescu, Anca-Stefania
name: Wienböker, Niklas
name: Rosenbauer, Jan
name: Görne, Thomas
Publisher: name: TU Ilmenau
Year: 2019
Subjects: subject: 620

description: Fulldome is an immersive half-spherical video format utilized mainly in planetariums which is often combined with spatial audio playback. This combination on one hand offers new ways of perceiving sound in space and on the other hand helps enhancing fulldome productions with audiovisual synergy. However, audio production for fulldome video poses some technical and artistic challenges. Limited time slots and resources seldom allow to work on sound productions inside a planetarium directly. Likewise, the various spatial audio technologies provide the user with fairly different approaches to create, position and move sounds in space. This paper investigates three different approaches to create spatial audio content for fulldome productions in remote studios and to present them in a planetarium: object based proprietary Fraunhofer “SpatialSoundWave” (SSW) system, scene based Higher Order Ambisonics (HOA), and channel based production will be compared. Technical challenges and potentials of storytelling in spatial audio will be discussed.
description: Audio for Virtual, Augmented and Mixed Realities: Proceedings of ICSA 2019 ; 5th International Conference on Spatial Audio ; September 26th to 28th, 2019, Ilmenau, Germany, p. 179
Ein flacher Schuhleistenkeil aus Luttum, Kr. Verden
Creators: name: Schünemann, Detlef
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
Non-Empirically Tuned Range-Separated DFT Accurately Predicts Both Fundamental and Excitation Gaps in DNA and RNA Nucleobases
Creators: name: Foster, Michael E.
name: Wong, Bryan M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Using a non-empirically tuned range-separated DFT approach, we study both the quasiparticle properties (HOMO-LUMO fundamental gaps) and excitation energies of DNA and RNA nucleobases (adenine, thymine, cytosine, guanine, and uracil). Our calculations demonstrate that a physically-motivated, first-principles tuned DFT approach accurately reproduces results from both experimental benchmarks and more computationally intensive techniques such as many-body GW theory. Furthermore, in the same set of nucleobases, we show that the non-empirical range-separated procedure also leads to significantly improved results for excitation energies compared to conventional DFT methods. The present results emphasize the importance of a non-empirically tuned range-separation approach for accurately predicting both fundamental and excitation gaps in DNA and RNA nucleobases.
description: Accepted by the Journal of Chemical Theory and Computation
Scherben der Trichterbecherkultur und der älteren Römischen Kaiserzeit aus Flechum, Kr. Meppen
Creators: name: Peters, Hans-Günter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
BudgetLongformer: Can we Cheaply Pretrain a SotA Legal Language Model From Scratch?
Creators: name: Niklaus, Joel
name: Giofre, Daniele
Publisher: name: Zenodo
Year: 2023

description: Pretrained transformer models have achieved state-of-the-art results in many tasks and benchmarks recently. Many state-of-the-art Language Models (LMs), however, do not scale well above the threshold of 512 input tokens. In specialized domains though (such as legal, scientific or biomedical), models often need to process very long text (sometimes well above 10000 tokens). Even though many efficient transformers have been proposed (such as Longformer, BigBird or FNet), so far, only very few such efficient models are available for specialized domains. Additionally, since the pretraining process is extremely costly in general - but even more so as the sequence length increases - it is often only in reach of large research labs. One way of making pretraining cheaper is the Replaced Token Detection (RTD) task, by providing more signal during training, since the loss can be computed over all tokens. In this work, we train Longformer models with the efficient RTD task on legal data to showcase that pretraining efficient LMs is possible using much less compute. We evaluate the trained models on challenging summarization tasks requiring the model to summarize long texts to show to what extent the models can achieve good performance on downstream tasks. We find that both the small and base models outperform their baselines on the in-domain BillSum and out-of-domain PubMed tasks in their respective parameter range. We publish our code and models for research purposes.
Single top and Higgs associated production as a probe of the Htt coupling sign at the LHC
Creators: name: Biswas, Sanjoy
name: Gabrielli, Emidio
name: Mele, Barbara
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The LHC sensitivity to an anomalous Higgs coupling to the top quark in the Higgs-top associated production is analyzed. Thanks to the strong destructive interference in the t-channel for standard model couplings, this process can be very sensitive to both the magnitude and the sign of a nonstandard top-Higgs coupling. We analyze cross sections and the main irreducible backgrounds for the $H \to γγ$ decay channel. Sensitivities to an anomalous sign for the top Yukawa coupling are found to be large. In particular, at \sqrt{s}=14 TeV, assuming a universal rescaling in the Yukawa sector, a parton-level analysis with realistic selection cuts gives a signal-to-background ratio S/B ~ 5, for -1.5 < Y_t/Y_t^{SM} < 0. A number of events S ~ 10 (with corresponding significances ~ 3 σ) are expected for 60 fb^{-1}, to be compared with the standard-model expectation S ~ 0.3.
description: 18 pages, 5 figures, v2: a few references added, to appear in JHEP
Der Urnenfriedhof auf der Elbterrasse von Vietze, Kr. Lüchow-Dannenberg
Creators: name: Pudelko, Alfred
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
Measurement of η meson production in γγ interactions and Γ(η-->γγ) with the KLOE detector
Creators: name: 2 Collaboration
name: Babusci, D.
name: Badoni, D.
name: Balwierz-Pytko, I.
name: Bencivenni, G.
name: Bini, C.
name: Bloise, C.
name: Bossi, F.
name: Branchini, P.
name: Budano, A.
name: Balkestaahl, L. Caldeira
name: Capon, G.
name: Ceradini, F.
name: Ciambrone, P.
name: Czerwinski, E.
name: Dane, E.
name: De Lucia, E.
name: De Robertis, G.
name: De Santis, A.
name: Di Domenico, A.
name: Di Donato, C.
name: Di Salvo, R.
name: Domenici, D.
name: Erriquez, O.
name: Fanizzi, G.
name: Fantini, A.
name: Felici, G.
name: Fiore, S.
name: Franzini, P.
name: Gauzzi, P.
name: Giardina, G.
name: Giovannella, S.
name: Gonnella, F.
name: Graziani, E.
name: Happacher, F.
name: Heijkenskj, L.
name: Hoistad, B.
name: Iafolla, L.
name: Jacewicz, M.
name: Johansson, T.
name: Kupsc, A.
name: Lee-Franzini, J.
name: Leverington, B.
name: Loddo, F.
name: Loffredo, S.
name: Mandaglio, G.
name: Martemianov, M.
name: Martini, M.
name: Mascolo, M.
name: Messi, R.
name: Miscetti, S.
name: Morello, G.
name: Moricciani, D.
name: Moskal, P.
name: Nguyen, F.
name: Passeri, A.
name: Patera, V.
name: Longhi, I. Prado
name: Ranieri, A.
name: Redmer, C. F.
name: Santangelo, P.
name: Sarra, I.
name: Schioppa, M.
name: Sciascia, B.
name: Silarski, M.
name: Taccini, C.
name: Tortora, L.
name: Venanzoni, G.
name: Wislicki, W.
name: Wolke, M.
name: Zdebik, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a measurement of η meson production in photon-photon interactions produced by electron-positron beams colliding with \sqrt{s}=1 GeV. The measurement is done with the KLOE detector at the ϕ-factory DAΦNE with an integrated luminosity of 0.24 fb^{-1}. The e^+e^- --> e^+e^-η cross section is measured without detecting the outgoing electron and positron, selecting the decays η-->π^+π^-π^0 and η-->π^0π^0π^0. The most relevant background is due to e^+e^- --> ηγ when the monochromatic photon escapes detection. The cross section for this process is measured as σ(e^+e^- -->ηγ) = (856 \pm 8_{stat} \pm 16_{syst}) pb. The combined result for the e^+e^- -->e^+e^-η cross section is σ(e^+e^- -->e^+e^-η) = (32.72 \pm 1.27_{stat} \pm 0.70_{syst}) pb. From this we derive the partial width Γ(η-->γγ) = (520 \pm 20_{stat} \pm 13_{syst}) eV. This is in agreement with the world average and is the most precise measurement to date.
description: Version accepted by JHEP
Ein karolingerzeitliches Grubenhaus von Soltau
Creators: name: Voss, K. L.
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
Eine kaiserzeitliche Siedlung bei Immer, Gemeinde Ganderkesee
Creators: name: Steffens, Heino-Gerd
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
Revisiting the S-matrix approach to the open superstring low energy effective lagrangian
Creators: name: Barreiro, Luiz Antonio
name: Medina, Ricardo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The conventional S-matrix approach to the (tree level) open string low energy effective lagrangian assumes that, in order to obtain all its bosonic ${α'}^N$ order terms, it is necessary to know the open string (tree level) $(N+2)$-point amplitude of massless bosons, at least expanded at that order in $α'$. In this work we clarify that the previous claim is indeed valid for the bosonic open string, but for the supersymmetric one the situation is much more better than that: there are constraints in the kinematical bosonic terms of the amplitude (probably due to Spacetime Supersymmetry) such that a much lower open superstring $n$-point amplitude is needed to find all the ${α'}^N$ order terms. In this `revisited' S-matrix approach we have checked that, at least up to ${α'}^4$ order, using these kinematical constraints and only the known open superstring 4-point amplitude, it is possible to determine all the bosonic terms of the low energy effective lagrangian. The sort of results that we obtain seem to agree completely with the ones achieved by the method of BPS configurations, proposed about ten years ago. By means of the KLT relations, our results can be mapped to the NS-NS sector of the low energy effective lagrangian of the type II string theories implying that there one can also find kinematical constraints in the $N$-point amplitudes and that important informations can be inferred, at least up to ${α'}^4$ order, by only using the (tree level) 4-point amplitude.
description: 34 pages, 3 figure, Submitted on Aug 4, 2012, Published on Oct 15, 2012
Pfahlsteg LXXVII (Ip), Loyer Moor, Gem. Rastede, Ldkr. Ammerland
Creators: name: Hayen, Hajo
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
Economic implications of the modern treatment paradigm of glioblastoma: an analysis of global cost estimates and their utility for cost assessment
Creators: name: Goel, Nicholas J.
name: Bird, Cylaina E.
name: Hicks, William H.
name: Abdullah, Kalil G.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Glioblastoma is the most common primary brain tumor in adults. Standard of care includes maximal surgical resection of the tumor followed by concurrent chemotherapy and radiation. The treatment of glioblastoma must account for an increased disease severity and treatment intensity compared to other cancers which place a significant cost burden on the patient and health system. Cost assessments of glioblastoma treatment have been sparse in comparison to other solid cancer subtypes. This study evaluates all currently available cost literature with an emphasis on the modern treatment paradigm to properly assess the economic implications of this disease. A critical review of 21 studies from 13 different countries measuring direct costs related to glioblastoma management was performed. Evaluated data included itemized costs, total costs of treatment regimens from diagnosis until death, the cost of second-line care after recurrence, and the incremental costs and cost-effectiveness of emerging therapies. The average cost of a craniotomy was $10,042 across studies. Imaging for the duration of glioblastoma care had a mean cost of $2,788 ± 3,719. Studies examined different combinations of treatment modalities. Utilization of the modern treatment paradigm led to survival of 16.3 months across studies and had a mean cost of $62,602. Surgery for the recurrent disease had an average cost of $27,442 ± 18,992. Direct cost estimates for glioblastoma varied substantially between institutions and countries and often failed to uniformly describe direct cost estimates associated with care for glioblastoma. The limitations of these studies make a true economic assessment of standards of care, costs of recurrence, and incremental costs associated with adjunctive therapy uncertain.
Schirnig, Heinz: Die Keramik der Siedlung Böhme, Kreis Fallingbostel, aus der römischen Kaiserzeit
Creators: name: Schmid, Peter
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Schirnig, Heinz: Die Keramik der Siedlung Böhme, Kreis Fallingbostel, aus der römischen Kaiserzeit; Göttinger Schriften zur Vor- und Frühgeschichte, Bd. 11. Neumünster (Karl Wachholtz-Verlag) 1969. 121 S., davon 51 S. Katalog, 20 Abb., 40 Taf.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 40 (1971): Nachrichten aus Niedersachsens Urgeschichte
Wissenschaftlerinnen und Wissenschaftler des DFK Paris / Chercheurs du DFK Paris
Creators: name: Redaktion, Die
Publisher: name: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel
Year: 2019

description: -
description: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel, Jahresbericht / Rapport annuel 2017/2018
Generation of twist on magnetic flux tubes at the base of the solar convection zone
Creators: name: Hotta, H.
name: Yokoyama, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using two-dimensional magnetohydrodynamics calculations, we investigate a twist gen- eration mechanism on a magnetic flux tube at the base of the solar convection zone based on the idea of Choudhuri, 2003, Sol. Phys., 215, 31 in which a toroidal mag- netic field is wrapped by a surrounding mean poloidal field. During generation of the twist, the flux tube follows four phases. (1) It quickly splits into two parts with vortex motions rolling up the poloidal magnetic field. (2) Owing to the physical mechanism similar to that of the magneto-rotational instability, the rolled-up poloidal field is bent and amplified. (3) The magnetic tension of the disturbed poloidal magnetic field re- duces the vorticity, and the lifting force caused by vortical motion decreases. (4) The flux tube gets twisted and begins to rise again without splitting. Investigation of these processes is significant because it shows that a flux tube without any initial twist can rise to the surface in relatively weak poloidal fields.
description: 10 pages, 6 figure
Universitätsbibliothek und Digitalisierung. Forschungsdatenmanagement (FDM).
Creators: name: Strauch, Annette
Publisher: name: Zenodo
Year: 2020
Subjects: Bibliotheken
Universitätsbibliotheken
Universitätsbibliotheken und Digitalisierung
Universitätsbibliotheken und Digitaler Wandel
FDM
Forschungsdatenmanagement
UB
Forschung
FDMNiedersachsen
Digitale Kompetenzen
Digitale Kompetenzen in Bibliotheken

description: Durch die Digitalisierung ist der Forschungsalltag aller Fachdisziplinen stark verändert worden. Forschungsdaten heterogener Art werden generiert, annotiert, analysiert, archiviert und auch veröffentlicht. Der Begriff Forschungsdatenmanagement (FDM) umfasst eine Vielzahl von Themenbereichen und praktischen Arbeiten, die bei der Handhabung digitaler Daten in der Forschung eine wichtige Rolle spielen, so auch an der Stiftung Universität Hildesheim (UB Hildesheim).
What lies between a free adiabatic expansion and a quasi-static one?
Creators: name: Miranda, E. N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: An expression is found that relates the initial and final volumes and temperatures for any adiabatic process. It is given in terms of a parameter r that smoothly interpolates between a free adiabatic expansion (r = 0) and a quasi-static one (r = 1). The parameter has to be evaluated numerically, but an approximate expression is given.
Mobility: Objects, materials, concepts, actors. Bericht über die transregionale Akademie Buenos Aires, 30. September bis 8. Oktober 2017 / Compte rendu de l’académie transrégionale Buenos Aires, 30 septembre au 8 octobre 2017
Creators: name: Bader, Lena
name: Kirchner, Thomas
Publisher: name: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel
Year: 2019

description: -
description: Deutsches Forum für Kunstgeschichte (DFK Paris): Jahresbericht / Rapport annuel, Jahresbericht / Rapport annuel 2017/2018
NMR Search for the Spin Nematic State in LaFeAsO Single Crystal
Creators: name: Fu, M.
name: Torchetti, D. A.
name: Imai, T.
name: Ning, F. L.
name: Yan, J. -Q.
name: Sefat, A. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a 75-As single crystal NMR investigation of LaFeAsO, the parent phase of a pnictide high Tc superconductor. We demonstrate that spin dynamics develop a strong two-fold anisotropy within each orthorhombic domain below the tetragonal-orthorhombic structural phase transition at T[TO]~156 K. This intermediate state with a dynamical breaking of the rotational symmetry freezes progressively into a spin density wave (SDW) below T[SDW]~142 K. Our findings are consistent with the presence of a spin nematic state below T[TO] with an incipient magnetic order.
description: Revised manuscript accepted for publication in Phys. Rev. Lett
The small $K π$ component in the $K^*$ wave functions
Creators: name: Xiao, C. W.
name: Aceti, F.
name: Bayar, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We use a recently developed formalism which generalizes the Weinberg's compositeness condition to partial waves higher than s-wave in order to determine the probability of having a $K π$ component in the $K^*$ wave function. A fit is made to the $K π$ phase shifts in p-wave, from where the coupling of $K^*$ to $K π$ and the $K π$ loop function are determined. These ingredients allow us to determine that the $K^*$ is a genuine state, different to a $K π$ component, in a proportion of about 80%.
title: To invest or not to invest in sanitation: the role of intra-household gender differences in perceptions and bargaining power (accepted)
Creators: name: Augsburg, Britta
name: Malde, Bansi
name: Olorenshaw, Harriet
name: Wahhaj, Zaki
Publisher: name: Elsevier
Year: 2023

description: We exploit novel data collected within a randomized controlled trial of a sanitation microcredit intervention to study how intra-household gender differences in perceptions of costs and benefits of sanitation impact investment decisions. We show that - as long as the wife is involved in household decision-making - the intra-household differences in perceptions we document influence borrowing and investments: uptake of the sanitation loan is higher among households where the wife has higher benefit perception, whereas successful conversion to a toilet depends on differences in monetary cost perceptions. The estimated effects are consistent with the predictions of a model of intra-household decision-making.
description: Author's Accepted Manuscript
Hubble Space Telescope H-alpha imaging of star-forming galaxies at z = 1-1.5: evolution in the size and luminosity of giant HII regions
Creators: name: Livermore, R. C.
name: Jones, T.
name: Richard, J.
name: Bower, R. G.
name: Ellis, R. S.
name: Swinbank, A. M.
name: Rigby, J. R.
name: Smail, Ian
name: Ebeling, H.
name: Crain, R. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present HST/WFC3 narrowband imaging of the H-alpha emission in a sample of eight gravitationally-lensed galaxies at z = 1 - 1.5. The magnification caused by the foreground clusters enables us to obtain a median source plane spatial resolution of 360pc, as well as providing magnifications in flux ranging from ~10x to ~50x. This enables us to identify resolved star-forming HII regions at this epoch and therefore study their H-alpha luminosity distributions for comparisons with equivalent samples at z ~ 2 and in the local Universe. We find evolution in the both luminosity and surface brightness of HII regions with redshift. The distribution of clump properties can be quantified with an HII region luminosity function, which can be fit by a power law with an exponential break at some cut-off, and we find that the cut-off evolves with redshift. We therefore conclude that `clumpy' galaxies are seen at high redshift because of the evolution of the cut-off mass; the galaxies themselves follow similar scaling relations to those at z = 0, but their HII regions are larger and brighter and thus appear as clumps which dominate the morphology of the galaxy. A simple theoretical argument based on gas collapsing on scales of the Jeans mass in a marginally unstable disk shows that the clumpy morphologies of high-z galaxies are driven by the competing effects of higher gas fractions causing perturbations on larger scales, partially compensated by higher epicyclic frequencies which stabilise the disk.
description: 16 pages, 9 figures, 2 tables, accepted for publication in MNRAS
title: Virtuelles Ausstellungsportal der Forschungsbibliothek Gotha. Konzept und Perspektiven
Creators: name: Carius, Hendrikje
name: Resch, Carsten
Publisher: name: Friedrich-Schiller-Universität Jena
Year: 2019
Subjects: subject: Virtuelle Ausstellung
subject: 060
subject: 004

description: Fachtag Digital Humanities in Jena : Portale in Thüringen
Ungauging black holes and hidden supercharges
Creators: name: Hristov, Kiril
name: Katmadas, Stefanos
name: Pozzoli, Valentina
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We embed the general solution for non-BPS extremal asymptotically flat static and under-rotating black holes in abelian gauged D=4 N=2 supergravity, in the limit where the scalar potential vanishes but the gauging does not. Using this result, we show explicitly that some supersymmetries are preserved in the near horizon region of all the asymptotically flat solutions above, in the gauged theory. This reveals a deep relation between microscopic entropy counting of extremal black holes in Minkowski and BPS black holes in AdS. Finally, we discuss the relevance of this construction to the structure of asymptotically AdS4 black holes, as well as the possibility of including hypermultiplets.
description: 33 pages, 1 figure, v2: Corrections in section 5, comments added, references updated
Die UB als Mitgestalter des Digitalen Wandels. Forschungsdatenmanagement.
Creators: name: Strauch, Annette
Publisher: name: Zenodo
Year: 2020
Subjects: UB
Universitätsbibliothek
Universitätsbibliotheken
Digitalisierung
Digitaler Wandel
Universitätsbibliotheken und Digitaler Wandel
FDM
RDM
Libraries

description: Daten haben seit ca. 2005 an Bedeutung gewonnen.
 FDM in Covid-19 Zeiten von sehr wichtiger Bedeutung. So sind Forschungsergebnisse auf Dauer reproduzierbar. Forschungsdaten stehen zur Nachnutzung zur Verfügung. Ich beleuchte meine Sicht auf den digitalen Wandel in der Hochschulbildung im Zusammenhang mit dem aktiven Forschungsdatenmanagement (FDM). Dabei habe ich vor allem das praxisbezogene, fächerübergreifende, fachspezifische und auch generische FDM im Blick. Also all das, was den größten Nutzen und Mehrwert (nicht Mehrarbeit!) für Forscherinnen und Forscher hat. In der Praxis sollen es Muster sein, Workflows, Fallbeispiele und Standards, z.B. Metadatenstandards. Denn für Forscherinnen und Forscher sind vor allem die Beispiele hilfreich, die veranschaulichen, wie bereits andere ihr Datenmanagement organisiert haben und was sich dabei bewährt hat und was nicht.
Star formation in luminous quasar host galaxies at z=1-2
Creators: name: Floyd, David J. E.
name: Dunlop, James S.
name: Kukula, Marek J.
name: Brown, Michael J. I.
name: McLure, Ross J.
name: Baum, Stefi A.
name: O'Dea, Christopher P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present deep HST/WFPC2, rest-frame U images of 17 ~L* quasars at z=1 and z=2 (V and I bands respectively), designed to explore the host galaxies. We fit the images with simple axisymmetric galaxy models, including a point-source, in order to separate nuclear and host-galaxy emission. We successfully model all of the host galaxies, with luminosities stable to within 0.3 mag. Combining with our earlier NICMOS rest-frame optical study of the same sample, we provide the first rest-frame U-V colours for a sample of quasar host galaxies. While the optical luminosities of their host galaxies indicate that they are drawn purely from the most massive (>~L*) early-type galaxy population, their colours are systematically bluer than those of comparably massive galaxies at the same redshift. The host galaxies of the radio-loud quasars (RLQ) in our sample are more luminous than their radio-quiet quasar (RQQ) counterparts at each epoch, but have indistinguishable colours, confirming that the RLQ's are drawn from only the most massive galaxies (10^{11}-10^{12} M_sun, even at z~2), while the RQQ's are slightly less massive (~10^{11} M_sun). This is consistent with the well-known anticorrelation between radio-loudness and accretion rate. Using simple stellar population "frosting" models we estimate mean star formation rates of ~350 M_sun/yr for the RLQ's and ~100 M_sun/yr for the RQQ's at z~2. By z~1, these rates have fallen to ~150 M_sun/yr for the RLQ's and ~50 M_sun/yr for the RQQ's. We conclude that while the host galaxies are extremely massive, they remain actively star-forming at, or close to, the epoch of the quasar.
description: Accepted for publication in MNRAS. 20 pages, 23 figures (6 in main text, 17 in appendix)
Judgment outcome extraction for Swiss court rulings
Creators: name: Buchholz, Marco
Publisher: name: Zenodo
Year: 2023

description: Apart from the Federal Supreme Court of Switzerland, there do not exist extracted judgment outcomes for Swiss court decisions. Although court decisions abide to a general structure, the underlying pattern and composition of words used to convey the final judgment may vary from court to court. This work will focus on analyzing said structure of judicial cases and explore to what extend a rule-based matching system can correctly identify the judgment outcomes across different courts in Switzerland. We present an overview of the entire pipeline which ranges from scraping the documents to the eventual extraction of the judgment outcome. We introduce an automated ex- traction system for commonly used patterns across different case doc- uments which greatly reduces the required manual effort and analy- sis of such. With a coverage of 94.53% extracted judgment outcomes out of 613’629 rulings and a near perfect verification result, we have shown that a rule-based matching system is an excellent method of choice.