cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Search for a compressed supersymmetric spectrum with a light Gravitino
Creators: name: Dutta, Juhi
name: Konar, Partha
name: Mondal, Subhadeep
name: Mukhopadhyaya, Biswarup
name: Rai, Santosh Kumar
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Presence of the light gravitino as dark matter candidate in a supersymmetric (SUSY) model opens up interesting collider signatures consisting of one or more hard photons together with multiple jets and missing transverse energy from the cascade decay. We investigate such signals at the 13 TeV LHC in presence of compressed SUSY spectra, consistent with the Higgs mass as well as collider and dark matter constraints. We analyse and compare the discovery potential in different benchmark scenarios consisting of both compressed and uncompressed SUSY spectra, considering different levels of compression and intermediate decay modes. Our conclusion is that compressed spectra upto 2.5 TeV are likely to be probed even before the high luminosity run of LHC. Kinematic variables are also suggested, which offer distinction between compressed and uncompressed spectra yielding similar event rates for photons + multi-jets + $E\!\!\!\!/_T$.
description: 32 pages, 7 figures, 4 tables. Published in JHEP, minor modifications in text and few references added
Creating high-contrast patterns in multiple-scattering media via wavefront shaping
Creators: name: Shaughnessy, Liam
name: McIntosh, Rohin E.
name: Goetschy, Arthur
name: Hsu, Chia Wei
name: Bender, Nicholas
name: Yilmaz, Hasan
name: Yamilov, Alexey
name: Cao, Hui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Wavefront shaping allows focusing light through or inside strongly scattering media, but the background intensity also increases due to long-range correlations, reducing the target's contrast. By manipulating non-local intensity correlations of scattered waves in a disordered system with input wavefront shaping, we create high-contrast patterns behind strongly scattering media and targeted energy delivery into a diffusive system with minimal change in the surrounding intensity. These are achieved by introducing the contrast operator and the difference operator, and utilizing their eigenstates to maximize the target-to-background intensity contrast and energy difference. This work opens the door to coherent control of non-local effects in wave transport for practical applications.
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.05.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
A Novel Neural Network Model for Joint POS Tagging and Graph-based Dependency Parsing
Creators: name: Nguyen, Dat Quoc
name: Dras, Mark
name: Johnson, Mark
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We present a novel neural network model that learns POS tagging and graph-based dependency parsing jointly. Our model uses bidirectional LSTMs to learn feature representations shared for both POS tagging and dependency parsing tasks, thus handling the feature-engineering problem. Our extensive experiments, on 19 languages from the Universal Dependencies project, show that our model outperforms the state-of-the-art neural network-based Stack-propagation model for joint POS tagging and transition-based dependency parsing, resulting in a new state of the art. Our code is open-source and available together with pre-trained models at: https://github.com/datquocnguyen/jPTDP
description: v2: also include universal POS tagging, UAS and LAS accuracies w.r.t gold-standard segmentation on Universal Dependencies 2.0 - CoNLL 2017 shared task test data; in CoNLL 2017
On the Abundance of Extreme Voids II: A Survey of Void Mass Functions
Creators: name: Chongchitnan, Siri
name: Hunt, Matthew
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The abundance of cosmic voids can be described by an analogue of halo mass functions for galaxy clusters. In this work, we explore a number of void mass functions: from those based on excursion-set theory to new mass functions obtained by modifying halo mass functions. We show how different void mass functions vary in their predictions for the largest void expected in an observational volume, and compare those predictions to observational data. Our extreme-value formalism is shown to be a new practical tool for testing void theories against simulation and observation.
description: See part I here: https://arxiv.org/abs/1502.07705
Polyadic Opinion Formation: The Adaptive Voter Model on a Hypergraph
Creators: name: Golovin, Anastasia
name: Mölter, Jan
name: Kuehn, Christian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: The adaptive voter model is widely used to model opinion dynamics in social complex networks. However, existing adaptive voter models are limited to only pairwise interactions and fail to capture the intricate social dynamics that arises in groups. This paper extends the adaptive voter model to hypergraphs to explore how forces of peer pressure influence collective decision-making. The model consists of two processes: individuals can either consult the group and change their opinion or leave the group and join a different one. The interplay between those two processes gives rise to a two-phase dynamics. In the initial phase, the topology of the hypergraph quickly reaches a new stable state. In the subsequent phase, opinion dynamics plays out on the new topology depending on the mechanism by which opinions spread. If the group always follows the majority, the network rapidly converges to fragmented communities. In contrast, if individuals choose an opinion proportionally to its representation in the group, the system remains in a metastable state for an extended period of time. The results are supported both by stochastic simulations and an analytical mean-field description in terms of hypergraph moments with a moment closure at the pair level.
description: Version as appeared in the Annalen der Physik; 20 pages, 10 figures
title: Biomarkers of Epileptogenesis and Novel Therapeutic Approaches in Animal Models of Acquired Epilepsy
Creators: name: Di Sapia, Rossella
Publisher: name: The Open University
Year: 2025

description: Epilepsy is a chronic neurological disorder that affects over 50 million people worldwide. The current therapy is mainly based on symptomatic drugs acting on seizures but these drugs do not affect the underlying mechanisms of the disease. Moreover, despite more than 20 available antiseizure drugs, seizures remain uncontrolled in ~30% of patients. Hence, there is an urgent need to find novel therapeutics to improve the management of seizures and the neurological comorbidities. Epilepsy may occur after an acquired epileptogenic insult (e.g., traumatic brain injury, status epilepticus, CNS infections) and the risk of developing the disease varies among individuals exposed to similar injuries. Prevention of epilepsy is hampered by the lack of sensitive and specific prognostic biomarkers that may enable the identification of the individuals at risk of developing epilepsy. This prediction would greatly facilitate clinical trials of anti-epileptogenic treatments. Animal models are required to investigate the pathological mechanisms driving the transition from the epileptogenic insult to clinical onset and progression of epilepsy. These models are instrumental for discovering novel targets and developing effective treatments and biomarkers of epileptogenesis. Based on these clinical needs, we characterized two clinically relevant rodent models of epileptogenesis of differing etiology (traumatic brain injury, status epilepticus) with a 50-60% epilepsy incidence to identify potential biomarkers by performing EEG, MRI and behavioural measurements. Moreover, we studied the activation and the role of the IL-8 signaling in pharmacoresistant epilepsy using human temporal lobe epilepsy brain specimens and a wellestablished mouse model. This chemokine was reported to be increased in biospecimens of patients with drug-resistat seizures. Our studies provided evidence of prognostic biomarkers of epileptogenesis with clinical translatability, and a new druggable target for controlling pharmacoresistant seizures.
title: Soziale Wohnungsbaukonzepte der 20er und 30er Jahre in Zürich
Creators: name: Koch, Michael
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Sozialer Wohnungsbau
subject: 720

description: Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'
description: Der wissenschaftlich-technische Fortschritt und die sozial-kulturelle Funktion von Architektur und industrieller Formgestaltung in unserer Epoche: 4. Internationales Bauhaus-Kolloquium Weimar 1986, vol. 33, 1987, no. 4-6, p. 310
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 33, 1987, no. 4-6, p. 310
State-dependent Delay Differential Equations on $H^1$
Creators: name: Frohberg, Johanna
name: Waurick, Marcus
Publisher: name: arXiv
Year: 2023
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 34K05, 34K30

description: Classically, solution theories for state-dependent delay equations are developed in spaces of continuous or continuously differentiable functions. The former can be technically challenging to apply in as much as suitably Lipschitz continuous extensions of mappings onto the space of continuous functions are required; whereas the latter approach leads to restrictions on the class of initial pre-histories. Here, we establish a solution theory for state-dependent delay equations for arbitrary Lipschitz continuous pre-histories and suitably Lipschitz continuous right-hand sides on the Sobolev space $H^1$. The provided solution theory is independent of previous ones and is based on the contraction mapping principle on exponentially weighted spaces. In particular, initial pre-histories are not required to belong to solution manifolds and the generality of the approach permits the consideration of a large class of functional differential equations even for which the continuity of the right-hand side has constraints on the derivative.
description: 27 pages; references added, typos removed; v3: 36 pages, thoroughly revised version taken all the referee's comments into account. Accepted for publication in the Journal of Differential Equations
Comparison of nuclear hamiltonians using spectral function sum rules
Creators: name: Rios, A.
name: Carbone, A.
name: Polls, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: The energy weighted sum rules of the single-particle spectral functions provide a quantitative understanding of the fragmentation of nuclear states due to short-range and tensor correlations. Purpose: The aim of this paper is to compare on a quantitative basis the single-particle spectral function generated by different nuclear hamiltonians in symmetric nuclear matter using the first three energy-weighted moments. Method: The spectral functions are calculated in the framework of the self-consistent Green's function approach at finite temperature within a ladder resummation scheme. We analyze the first three moments of the spectral function and connect these to the correlations induced by the interactions between the nucleons. In particular, the variance of the spectral function is directly linked to the dispersive contribution of the self-energy. The discussion is centred around two- and three-body chiral nuclear interactions, with and without renormalization, but we also provide results obtained with the traditional phase-shift-equivalent CD-Bonn and Av18 potentials. Results: The variance of the spectral function is particularly sensitive to the short-range structure of the force, with hard-core interactions providing large variances. Chiral forces yield variances which are an order of magnitude smaller and, when tamed using the similarity renormalization group, the variance reduces significantly and in proportion to the renormalization scale. The presence of three-body forces does not substantially affect the results. Conclusions: The first three moments of the spectral function are useful tools in analysing the importance of correlations in nuclear ground states. In particular, the second-order moment provides a direct insight into dispersive contributions to the self-energy and its value is indicative of the fragmentation of single-particle states.
description: 13 pages, 7 figures. Accepted version in Phys Rev C
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.03.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.08.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
title: Hannes Meyer und Hans Wittwer : ein wissenschaftlich-technisches Labor der "neuen Welt"
Creators: name: Kieren, Martin
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Meyer, Hannes
subject: Wittwer, Hans
subject: 720

description: Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'
description: Der wissenschaftlich-technische Fortschritt und die sozial-kulturelle Funktion von Architektur und industrieller Formgestaltung in unserer Epoche: 4. Internationales Bauhaus-Kolloquium Weimar 1986, vol. 33, 1987, no. 4-6, p. 313
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 33, 1987, no. 4-6, p. 313
The Influence of Dual-Recycling on Parametric Instabilities at Advanced LIGO
Creators: name: Green, A. C.
name: Brown, D. D.
name: Dovale-Álvarez, M.
name: Collins, C.
name: Miao, H.
name: Mow-Lowry, C.
name: Freise, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Laser interferometers with high circulating power and suspended optics, such as the LIGO gravitational wave detectors, experience an optomechanical coupling effect known as a parametric instability: the runaway excitation of a mechanical resonance in a mirror driven by the optical field. This can saturate the interferometer sensing and control systems and limit the observation time of the detector. Current mitigation techniques at the LIGO sites are successfully suppressing all observed parametric instabilities, and focus on the behaviour of the instabilities in the Fabry-Perot arm cavities of the interferometer, where the instabilities are first generated. In this paper we model the full dual-recycled Advanced LIGO design with inherent imperfections. We find that the addition of the power- and signal-recycling cavities shapes the interferometer response to mechanical modes, resulting in up to four times as many peaks. Changes to the accumulated phase or Gouy phase in the signal-recycling cavity have a significant impact on the parametric gain, and therefore which modes require suppression.
description: 9 pages, 11 figures, 2 ancillary files
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.10.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Controlling electron spin dynamics in bichromatic Kapitza-Dirac scattering by the laser field polarization
Creators: name: Dellweg, Matthias M.
name: Müller, Carsten
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin-dependent Kapitza-Dirac scattering of electron beams from counterpropagating bichromatic laser waves in various polarization geometries is studied. The corresponding scattering probabilities are obtained by analytical and numerical solutions of the time-dependent Dirac equation, assuming a field frequency ratio of 2. When the fundamental field mode is circular-polarized, we show that spin dynamics are generally suppressed at low intensities, but can become distinct at high intensities. Conversely, when a linearly or elliptically polarized fundamental mode is combined with a second harmonic of circular polarization, strong spin effects arise already at low field intensities. In particular, a polarization configuration is identified which acts as a spin filter for free electrons.
description: 9 pages, 8 figures
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 11.07.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.08.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Leading CFT constraints on multi-critical models in d>2
Creators: name: Codello, Alessandro
name: Safari, Mahmoud
name: Vacca, Gian Paolo
name: Zanusso, Omar
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the family of renormalizable scalar QFTs with self-interacting potentials of highest monomial $ϕ^{m}$ below their upper critical dimensions $d_c=\frac{2m}{m-2}$, and study them using a combination of CFT constraints, Schwinger-Dyson equation and the free theory behavior at the upper critical dimension. For even integers $m \ge 4$ these theories coincide with the Landau-Ginzburg description of multi-critical phenomena and interpolate with the unitary minimal models in $d=2$, while for odd $m$ the theories are non-unitary and start at $m=3$ with the Lee-Yang universality class. For all the even potentials and for the Lee-Yang universality class, we show how the assumption of conformal invariance is enough to compute the scaling dimensions of the local operators $ϕ^k$ and of some families of structure constants in either the coupling's or the $ε$-expansion. For all other odd potentials we express some scaling dimensions and structure constants in the coupling's expansion.
description: 29 pages, 1 figure; V2: references added, minor improvements, to appear in JHEP
Fast-moving electrostatic solitons in a plasma with turbulence heating
Creators: name: Das, Mridusmita
name: Khusroo, Murchana
name: Bora, Madhurjya P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work, it is shown that electrostatic solitons in a plasma with turbulent heating of the electrons through an accelerating electric field can form with very high velocities, reaching up to several order of magnitudes larger than the equilibrium ion-sound speed. The possible parameter regime, where this work may be relevant, can be found in the so-called "dead zones" of a protoplanetary disk. Though these zones are stable to magnetorotational instability, the resultant turbulence can in fact heat the electrons making them follow a highly non- Maxwellian velocity distribution. We show that these fast-moving solitons can reach very high velocities. With electron velocity distribution described by the Davydov distribution function, we argue that these solitons can be an effective mechanism for energy equilibration in such a situation through soliton decay and radiation.
description: 24 pages, 7 figures
title: Anforderungen älterer Fahrender an das HMI automatisierter Fahrzeuge
Creators: name: Schwindt, Sarah
name: Theobald, Nina
name: Abendroth, Bettina
name: Manstetten, Dietrich
Publisher: name: Springer-Vieweg
Year: 2023

description: Automatisierte Fahrzeuge bergen ein großes Potenzial für die Aufrechterhaltung der Mobilität und somit auch der Lebensqualität Älterer. Für einen sicheren Mobilitätszuwachs muss diese Benutzergruppe in den Entwicklungsprozess der Fahrzeuge einbezogen werden. Im FAT-Vorhaben "HMI-Anforderungen für den automatisierten Individualverkehr unter Berücksichtigung von Leistungsmöglichkeiten und -grenzen älterer Nutzer" (FAT-Schriftenreihe Nr. 350) wurden an der Technischen Universität Darmstadt deren spezifische Anforderungen an das Human Machine Interface (HMI) untersucht.
title: Als die Moderne kein Stil, sondern eine Ursache war : die sozialen Wurzeln der modernen Architektur
Creators: name: Kopp, Anatole
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Architekturtheorie
subject: Moderne
subject: 720

description: Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'
description: Der wissenschaftlich-technische Fortschritt und die sozial-kulturelle Funktion von Architektur und industrieller Formgestaltung in unserer Epoche: 4. Internationales Bauhaus-Kolloquium Weimar 1986, vol. 33, 1987, no. 4-6, p. 316
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 33, 1987, no. 4-6, p. 316
title: Architekturströmungen der Gegenwart in der Bundesrepublik Deutschland am Beispiel der Bundeshauptstadt Bonn
Creators: name: Petsch, Joachim
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Berlin
subject: Architektur
subject: 720

description: Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'
description: Der wissenschaftlich-technische Fortschritt und die sozial-kulturelle Funktion von Architektur und industrieller Formgestaltung in unserer Epoche: 4. Internationales Bauhaus-Kolloquium Weimar 1986, vol. 33, 1987, no. 4-6, p. 320
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 33, 1987, no. 4-6, p. 320
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.06.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Initial Angular Momentum and Flow in High Energy Nuclear Collisions
Creators: name: Fries, Rainer J.
name: Chen, Guangyao
name: Somanathan, Sidharth
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the transfer of angular momentum in high energy nuclear collisions from the colliding nuclei to the region around midrapidity, using the classical approximation of the Color Glass Condensate (CGC) picture. We find that the angular momentum shortly after the collision (up to times ~ 1/Q_s, where Q_s is the saturation scale) is carried by the "beta-type" flow of the initial classical gluon field, introduced by some of us earlier. beta^i ~ mu_1 nabla^i mu_2 - mu_2 nabla^i mu_1 (i=1,2) describes the rapidity-odd transverse energy flow and emerges from Gauss' Law for gluon fields. Here mu_1 and mu_2 are the averaged color charge fluctuation densities in the two nuclei, respectively. Interestingly, strong coupling calculations using AdS/CFT techniques also find an energy flow term featuring this particular combination of nuclear densities. In classical CGC the order of magnitude of the initial angular momentum per rapidity in the reaction plane, at a time 1/Q_s, is |dL_2/d eta| ~ R_A/Q_s^3 epsilon_0/2 at midrapidity, where R_A is the nuclear radius, and epsilon_0 is the average initial energy density. This result emerges as a cancellation between a vortex of energy flow in the reaction plane aligned with the total angular momentum, and energy shear flow opposed to it. We discuss in detail the process of matching classical Yang-Mills results to fluid dynamics. We will argue that dissipative corrections should not be discarded to ensure that macroscopic conservation laws, e.g. for angular momentum, hold. Viscous fluid dynamics tends to dissipate the shear flow contribution that carries angular momentum in boost-invariant fluid systems. This leads to small residual angular momentum around midrapidity at late times for collisions at high energies.
description: 16 pages, 13 figures; v2: typos fixed, references added
NIHAO XIII: Clumpy discs or clumpy light in high redshift galaxies?
Creators: name: Buck, Tobias
name: Macciò, Andrea V.
name: Obreja, Aura
name: Dutton, Aaron A.
name: Domínguez-Tenreiro, Rosa
name: Granato, Gian Luigi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Many massive star forming disc galaxies in the redshift range 3 to 0.5 are observed to have a clumpy morphology showing giant clumps of size $\sim$1 kpc and masses of about $10^7M_{\odot}$ to $10^{10} M_{\odot}$. The nature and fate of these giant clumps is still under debate. In this work we use 19 high-resolution simulations of disc galaxies from the NIHAO sample to study the formation and the evolution of clumps in the discs of high redshift galaxies. We use mock HST - CANDELS observations created with the radiative transfer code GRASIL-3D to carry out, for the first time, a quantitative comparison of the observed fraction of clumpy galaxies and its evolution with redshift with simulations. We find a good agreement between the observed clumpy fraction and the one of the NIHAO galaxies. We find that dust attenuation can suppress intrinsically bright clumps and enhance less luminous ones. In our galaxy sample we only find clumps in light (u-band) from young stars but not in stellar mass surface density maps. This means that the NIHAO sample does not show clumpy stellar discs but rather a clumpy light distribution originating from clumpy star formation events. The clumps found in the NIHAO sample match observed age/color gradients as a function of distance from the galaxy center but they show no sign of inward migration. Clumps in our simulations disperse on timescales of a about a hundred Myr and their contribution to bulge growth is negligible.
description: 17 pages, 18 figures, accepted by MNRAS
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.08.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.09.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 05.11.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Reflected spectroscopy of small exoplanets III: probing the UV band to measure biosignature gasses
Creators: name: Damiano, Mario
name: Hu, Renyu
name: Mennesson, Bertrand
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Direct-imaging observations of terrestrial exoplanets will enable their atmospheric characterization and habitability assessment. Considering the Earth, the key atmospheric signatures for the biosphere is O$_2$ and the photochemical product O$_3$. However, this O$_2$-O$_3$ biosignature is not detectable in the visible wavelengths for most of the time after the emergence of oxygenic photosynthesis life (i.e., the Proterozoic Earth). Here we demonstrate spectroscopic observations in the ultraviolet wavelengths for detecting and characterizing O$_2$ and O$_3$ in Proterozoic Earth-like planets, using ExoReL$^\Re$. For an O$_2$ mixing ratio 2 to 3 orders of magnitude less than the present-day Earth, and an O$_3$ mixing ratio of $10^{-7}-10^{-6}$, we find that O$_3$ can be detected and its mixing ratio can be measured precisely (within $~1$ order of magnitude) in the ultraviolet ($0.25-0.4\ μ$m) in addition to visible-wavelength spectroscopy. With modest spectral resolution ($R=7$) and S/N ($\sim10$) in the ultraviolet, the O$_3$ detection is robust against other potential gases absorbing in the ultraviolet (e.g., H$_2$S and SO$_2$), as well as the short-wavelength cutoff between 0.2 and 0.25 $μ$m. While the O$_3$ detection does not rely on the near-infrared spectra, extending the wavelength coverage to the near-infrared ($1-1.8\ μ$m) would provide essential information to interpret the O$_3$ biosignature, including the mixing ratio of H$_2$O, the cloud pressure, as well as the determination of the dominant gas of the atmosphere. The ultraviolet and near-infrared capabilities should thus be evaluated as critical components for future missions aiming at imaging and characterizing terrestrial exoplanets, such as the Habitable Worlds Observatory.
description: 13 pages, 8 figures, 3 tables, accepted for publication in AJ
Halo assembly bias from Separate Universe simulations
Creators: name: Paranjape, Aseem
name: Padmanabhan, Nikhil
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a calibration of halo assembly bias using the Separate Universe technique. Specifically, we measure the response of halo abundances at fixed mass and concentration to the presence of an infinite-wavelength initial perturbation. We develop an analytical framework for describing the concentration dependence of this peak-background split halo bias -- a measure of assembly bias -- relying on the near-Lognormal distribution of halo concentration at fixed halo mass. The combination of this analytical framework and the Separate Universe technique allows us to achieve very high precision in the calibration of the linear assembly bias $b_1$, and qualitatively reproduces known trends such as the monotonic decrease (increase) of $b_1$ with halo concentration at large (small) masses. The same framework extends to the concentration dependence of higher order bias parameters $b_n$, and we present the first calibration of assembly bias in $b_2$. Our calibrations are directly applicable in analytical Halo Model calculations that seek to robustly detect galaxy assembly bias in observational samples. We detect a non-universality in the $b_1 - b_2$ relation arising from assembly bias, and suggest that simultaneous measurements of these bias parameters could be used to both detect the signature of assembly bias as well as mitigate its effects in cosmological analyses.
description: 18 pages, 11 figures, v2: minor clarifications, MNRAS in press
Multi-level Bézier extraction of truncated hierarchical B-splines for isogeometric analysis
Creators: name: Grendas, Andreas
name: Marussig, Benjamin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Multivariate B-splines and Non-uniform rational B-splines (NURBS) lack adaptivity due to their tensor product structure. Truncated hierarchical B-splines (THB-splines) provide a solution for this. THB-splines organize the parameter space into a hierarchical structure, which enables efficient approximation and representation of functions with different levels of detail. The truncation mechanism ensures the partition of unity property of B-splines and defines a more scattered set of basis functions without overlapping on the multi-level spline space. Transferring these multi-level splines into Bézier elements representation facilitates straightforward incorporation into existing finite element (FE) codes. By separating the multi-level extraction of the THB-splines from the standard Bézier extraction, a more general independent framework applicable to any sequence of nested spaces is created. The operators for the multi-level structure of THB-splines and the operators of Bézier extraction are constructed in a local approach. Adjusting the operators for the multi-level structure from an element point of view and multiplying with the Bézier extraction operators of those elements, a direct map between Bézier elements and a hierarchical structure is obtained. The presented implementation involves the use of an open-source Octave/MATLAB isogeometric analysis (IGA) code called GeoPDEs. A basic Poisson problem is presented to investigate the performance of multi-level Bézier extraction compared to a standard THB-spline approach.
description: 9 pages, submitted to Proceedings in Applied Mathematics and Mechanics 2023 (PAMM)
title: Kommunistische und sozialdemokratische Bauhäusler für ein gemeinsames Ziel: Vernichtung der faschistischen Diktatur in Deutschland
Creators: name: Franke, Gerhard
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Bauhaus
subject: Kommunistische Partei Deutschlands
subject: Sozialdemokratische Partei Deutschlands
subject: 720

description: Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'
description: Der wissenschaftlich-technische Fortschritt und die sozial-kulturelle Funktion von Architektur und industrieller Formgestaltung in unserer Epoche: 4. Internationales Bauhaus-Kolloquium Weimar 1986, vol. 33, 1987, no. 4-6, p. 325
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 33, 1987, no. 4-6, p. 325
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.08.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Aspects of open-flavour mesons in a comprehensive DSBSE study
Creators: name: Hilger, T.
name: Gómez-Rocha, M.
name: Krassnigg, A.
name: Lucha, W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Open-flavour meson studies are the necessary completion to any comprehensive investigation of quarkonia. We extend recent studies of quarkonia in the Dyson-Schwinger-Bethe-Salpeter-equation approach to explore their results for all possible flavour combinations. Within the inherent limitations of the setup, we present the most comprehensive results for meson masses and leptonic decay constants currently available and put them in perspective with respect to experiment and other approaches.
description: 38 pages, 26 figures, 2 tables, revised according to reviewer comments
Rational points on 3-folds with nef anti-canonical class over finite fields
Creators: name: Bernasconi, Fabio
name: Filipazzi, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove that a geometrically integral smooth 3-fold $X$ with nef anti-canonical class and negative Kodaira dimension over a finite field $\mathbb{F}_q$ of characteristic $p>5$ and cardinality $q=p^e > 19$ has a rational point. Additionally, under the same assumptions on $p$ and $q$, we show that a 3-fold $X$ with trivial canonical class and non-zero first Betti number $b_1(X) \neq 0$ has a rational point. Our techniques rely on the Minimal Model Program to establish several structure results for generalized log Calabi--Yau 3-fold pairs over perfect fields.
description: 29 pages, minor mistakes and typos fixed. Final version to appear in the Proceedings of the London Mathematical Society
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 29.08.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.08.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
title: Jugoslawische Bauhausschüler
Creators: name: Koscevic, Zelimir
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Bauhaus
subject: 720

description: Wissenschaftliches Kolloquium vom 24. bis 26. Juni 1986 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: 'Der wissenschaftlich-technische Fortschritt und die sozial-kulturellen Funktionen von Architektur und industrieller Formgestaltung in unserer Epoche'
description: Der wissenschaftlich-technische Fortschritt und die sozial-kulturelle Funktion von Architektur und industrieller Formgestaltung in unserer Epoche: 4. Internationales Bauhaus-Kolloquium Weimar 1986, vol. 33, 1987, no. 4-6, p. 328
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 33, 1987, no. 4-6, p. 328
title: The Taxation of Couples
Creators: name: Bierbrauer, Felix
name: Boyer, Pierre C.
name: Peichl, Andreas
name: Weishaar, Daniel
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2023

description: Are reforms towards individual taxation politically feasible? Are they desirable from a welfare perspective? We develop a method to answer such questions and apply it to the US federal income tax since the 1960s. Main findings are: As of today, Pareto-improvements require a move away from joint taxation. Revenue-neutral reforms towards individual taxation are not Pareto-improving, but attract majoritysupport. Such reforms are rejected by Rawlsian welfare measures and supported by ones with weights that are increasing in the secondary earner’s income share. Thus, there is a tension between the welfare of “the poor” and the welfare of “working women.”
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 06.08.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
First-principles calculations of the magnetic and electronic structures of MnP under pressure
Creators: name: Xu, Yuanji
name: Liu, Min
name: Zheng, Ping
name: Chen, Xiangrong
name: Cheng, Jin-guang
name: Luo, Jianlin
name: Xie, Wenhui
name: Yang, Yi-feng
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Manganese monophosphide (MnP) shows complicated magnetic states varying with both temperature and pressure. We calculate the magnetic and electronic structures of MnP at different pressures using first-principles methods and obtain spiral ground states whose propagation vector changes from the c-axis at low pressure to the b-axis at high pressure. In between, we find a ferromagnetic state, as observed in the experimental phase diagram. The propagation vector of the spiral states is found to vary nonmonotonically with pressure, consistent with neutron measurements. Our results indicate that the complicated magnetic phase diagram originates from a delicate competition between neighboring exchange interactions between the Mn-ions. At all pressures, the electronic structures indicate the existence of quasi-one-dimensional charge carriers, which appear in the ferromagnetic state and become gapped in the spiral state, and anisotropic three-dimensional charge carriers. We argue that this two-fluid behavior originates from the special crystal structure of MnP and may be relevant for understanding the pairing mechanism of the superconductivity at the border of the high pressure spiral phase.
description: 8 pages, 6 figures, 2 tables
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 14.06.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa. Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Axion, mu Term, and Supersymmetric Hybrid Inflation
Creators: name: Lazarides, G.
name: Panagiotakopoulos, C.
name: Shafi, Q.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show how successful supersymmetric hybrid inflation is realized in realistic models where the resolution of the minimal supersymmetric standard model mu problem is intimately linked with axion physics. The scalar fields that accompany the axion, such as the saxion, are closely monitored during and after inflation to ensure that the axion isocurvature perturbations lie below the observational limits. The scalar spectral index n_s is about 0.96 - 0.97, while the tensor-to-scalar ratio r, a canonical measure of gravity waves, lies well below the observable range in our example. The axion domain walls are inflated away, and depending on the axion decay constant f_a and the magnitude of the mu parameter, the axions and/or the lightest supersymmetric particle compose the dark matter in the universe. Non-thermal leptogenesis is naturally implemented in this class of models.
description: 11 pages including 6 figures, uses Revtex, version published in Phys. Rev. D