cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A diagrammatic categorification of the fermion algebra
Creators: name: Lin, Bing-Sheng
name: Wang, Zhi-Xi
name: Wu, Ke
name: Yang, Zi-Feng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, we study the diagrammatic categorification of the fermion algebra. We construct a graphical category corresponding to the one-dimensional fermion algebra, and we investigate the properties of this category. The categorical analogues of the Fock states are some kind of 1-morphisms in our category, and the dimension of the vector space of 2-morphisms is exactly the inner product of the corresponding Fock states. All the results in our categorical framework coincide exactly with those in normal quantum mechanics.
description: 10 pages, many TikZ figures. To appear in Chin. Phys. B
Additional file 1 of Infant sex modifies associations between placental malaria and risk of malaria in infancy
Creators: name: Kakuru, Abel
name: Roh, Michelle E.
name: Kajubi, Richard
name: Ochieng, Teddy
name: Ategeka, John
name: Ochokoru, Harriet
name: Nakalembe, Miriam
name: Clark, Tamara D.
name: Ruel, Theodore
name: Staedke, Sarah G.
name: Chandramohan, Daniel
name: Havlir, Diane V.
name: Kamya, Moses R.
name: Dorsey, Grant
name: Prasanna Jagannathan
Publisher: name: figshare
Year: 2020
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Detailed description of mediation analysis using the inverse odds ratio weighting (IORW) approach.
A Meta-analytical Comparison of Naive Bayes and Random Forest for Software Defect Prediction
Creators: name: Awais, Ch Muhammad
name: Gu, Wei
name: Dlamini, Gcinizwe
name: Kholmatova, Zamira
name: Succi, Giancarlo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Is there a statistical difference between Naive Bayes and Random Forest in terms of recall, f-measure, and precision for predicting software defects? By utilizing systematic literature review and meta-analysis, we are answering this question. We conducted a systematic literature review by establishing criteria to search and choose papers, resulting in five studies. After that, using the meta-data and forest-plots of five chosen papers, we conducted a meta-analysis to compare the two models. The results have shown that there is no significant statistical evidence that Naive Bayes perform differently from Random Forest in terms of recall, f-measure, and precision.
description: 11 pages, 8 figures, Conference Paper
Local newforms for generic representations of unramified even unitary groups I: Even conductor case
Creators: name: Atobe, Hiraku
Publisher: name: arXiv
Year: 2023
Subjects: subject: Representation Theory (math.RT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In this paper, we define compact open subgroups of quasi-split even unitary groups for each even non-negative integers, and establish the theory of local newforms for irreducible tempered generic representations with a certain condition on the central characters. To do this, we use the local Gan-Gross-Prasad conjecture, the local Rankin-Selberg integrals, and the local theta correspondence.
description: 34 pages
title: Warum ist es am Rhein so schön? Strategische Ausrichtung des Binnenhafens Bonn
Creators: name: Deckert, Carsten
name: Lauermann, Paul
name: Hochschule Düsseldorf
Publisher: name: Hochschule Düsseldorf
Year: 2023
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten

description: Business Cases in Industrial Engineering; 1
Climate Dynamics: A Network-Based Approach for the Analysis of Global Precipitation
Creators: name: Scarsoglio, Stefania
name: Laio, Francesco
name: Ridolfi, Luca
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Precipitation is one of the most important meteorological variables for defining the climate dynamics, but the spatial patterns of precipitation have not been fully investigated yet. The complex network theory, which provides a robust tool to investigate the statistical interdependence of many interacting elements, is used here to analyze the spatial dynamics of annual precipitation over seventy years (1941-2010). The precipitation network reveals significant spatial variability with barely connected regions, as Eastern China and Japan, and highly connected regions, such as the African Sahel, Eastern Australia and, to a lesser extent, Northern Europe. Sahel and Eastern Australia are remarkably dry regions, where low amounts of rainfall are uniformly distributed on continental scales and small-scale extreme events are rare. As a consequence, the precipitation gradient is low, making these regions well connected on a large spatial scale. On the contrary, the Asiatic South-East is often reached by extreme events such as monsoons, tropical cyclones and heat waves, which can all contribute to reduce the correlation to the short-range scale only. Some patterns emerging between mid-latitude and tropical regions suggest a possible impact of the propagation of planetary waves on precipitation at a global scale. Other links can be qualitatively associated to the atmospheric and oceanic circulation. To analyze the sensitivity of the network to the physical closeness of the nodes, short-term connections are broken. The African Sahel, Eastern Australia and Northern Europe regions again appear as the supernodes of the network, confirming furthermore their long-range connection structure. Almost all North-American and Asian nodes vanish, revealing that extreme events can enhance high precipitation gradients, leading to a systematic absence of long-range patterns.
description: 11 pages, 8 figures
Biaxial strain tuning of exciton energy and polarization in monolayer WS2
Creators: name: Kourmoulakis, G.
name: Michail, A.
name: Paradisanos, I.
name: Marie, X.
name: Glazov, M. M.
name: Jorissen, B.
name: Covaci, L.
name: Stratakis, E.
name: Papagelis, K.
name: Parthenios, J.
name: Kioseoglou, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We perform micro-photoluminescence and Raman experiments to examine the impact of biaxial tensile strain on the optical properties of WS2 monolayers. A strong shift on the order of -130 meV per % of strain is observed in the neutral exciton emission at room temperature. Under near-resonant excitation we measure a monotonic decrease in the circular polarization degree under applied strain. We experimentally separate the effect of the strain-induced energy detuning and evaluate the pure effect coming from biaxial strain. The analysis shows that the suppression of the circular polarization degree under biaxial strain is related to an interplay of energy and polarization relaxation channels as well as to variations in the exciton oscillator strength affecting the long-range exchange interaction.
description: 29 pages, 11 figures
Ising model on random networks and the canonical tensor model
Creators: name: Sasakura, Naoki
name: Sato, Yuki
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We introduce a statistical system on random networks of trivalent vertices for the purpose of studying the canonical tensor model, which is a rank-three tensor model in the canonical formalism. The partition function of the statistical system has a concise expression in terms of integrals, and has the same symmetries as the kinematical ones of the canonical tensor model. We consider the simplest non-trivial case of the statistical system corresponding to the Ising model on random networks, and find that its phase diagram agrees with what is implied by regrading the Hamiltonian vector field of the canonical tensor model with N = 2 as a renormalization group flow. Along the way, we obtain an explicit exact expression of the free energy of the Ising model on random networks in the thermodynamic limit by the Laplace method. This paper provides a new example connecting a model of quantum gravity and a random statistical system.
description: 19 pages, 6 figures, typos corrected
A new Lagrangian approach to control affine systems with a quadratic Lagrange term
Creators: name: Leyendecker, Sigrid
name: Maslovskaya, Sofya
name: Ober-Blobaum, Sina
name: de Almagro, Rodrigo T. Sato Martin
name: Szemenyei, Flora Orsolya
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 65K10, 49M25, 65K15

description: In this work, we consider optimal control problems for mechanical systems on vector spaces with fixed initial and free final state and a quadratic Lagrange term. Specifically, the dynamics is described by a second order ODE containing an affine control term and we allow linear coordinate changes in the configuration space. Classically, Pontryagin's maximum principle gives necessary optimality conditions for the optimal control problem. For smooth problems, alternatively, a variational approach based on an augmented objective can be followed. Here, we propose a new Lagrangian approach leading to equivalent necessary optimality conditions in the form of Euler-Lagrange equations. Thus, the differential geometric structure (similar to classical Lagrangian dynamics) can be exploited in the framework of optimal control problems. In particular, the formulation enables the symplectic discretisation of the optimal control problem via variational integrators in a straightforward way.
What caused the GeV flare of PSR B1259-63 ?
Creators: name: Dubus, G.
name: Cerutti, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: PSR B1259-63 is a gamma-ray binary system composed of a high spindown pulsar and a massive star. Non-thermal emission up to TeV energies is observed near periastron passage, attributed to emission from high energy e+e- pairs accelerated at the shock with the circumstellar material from the companion star, resulting in a small-scale pulsar wind nebula. Weak gamma-ray emission was detected by the Fermi/LAT at the last periastron passage, unexpectedly followed 30 days later by a strong flare, limited to the GeV band, during which the luminosity nearly reached the spindown power of the pulsar. The origin of this GeV flare remains mysterious. We investigate whether the flare could have been caused by pairs, located in the vicinity of the pulsar, up-scattering X-ray photons from the surrounding pulsar wind nebula rather than UV stellar photons, as usually assumed. Such a model is suggested by the geometry of the interaction region at the time of the flare. We compute the gamma-ray lightcurve for this scenario, based on a simplified description of the interaction region, and compare it to the observations. The GeV lightcurve peaks well after periastron with this geometry. The pairs are inferred to have a Lorentz factor ~500. They also produce an MeV flare with a luminosity ~1e34 erg/s prior to periastron passage. A significant drawback is the very high energy density of target photons required for efficient GeV emission. We propose to associate the GeV-emitting pairs with the Maxwellian expected at shock locations corresponding to high pulsar latitudes, while the rest of the non-thermal emission arises from pairs accelerated in the equatorial region of the pulsar wind termination shock.
description: 6 pages, 3 figures, accepted for publication in A&A
Charge-Spin Conversion in Two-Subband Quantum Wells with Conventional and Unconventional Rashba Spin-Orbit Coupling
Creators: name: Ferreira, Gerson J.
name: Wang, Boyu
name: Fu, Jiyong
name: Raimondi, Roberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The reciprocal interconversion between spin polarization and charge current (CSC) is the focus of intensive theoretical and experimental investigation in spintronics research. Its physical origin stems from the Rashba spin-orbit coupling (SOC) induced by the breaking of the structure inversion symmetry. The steady-state interconversion efficiency is the result of the non-trivial spin textures of the electric-field distorted Fermi surface. Its full understanding and evaluation requires the consideration of disorder-induced relaxation effects in the presence of spin-orbit induced band splitting. In this paper the additional effect of the orbital degree of freedom is analyzed in a two-subband quantum well with both conventional and unconventional Rashba SOC in the presence of disorder impurity scattering. The latter is treated at the level of the Born approximation in the Green's function self-energy and with the inclusion of vertex corrections in the linear response functions for the charge current and the spin polarization. By explicitly considering the symmetry properties of the Hamiltonian the matrix structure of the correlation functions is shown to decompose in independent blocks of symmetry-related physical observables. We find that the inclusion of vertex corrections is important for the correct estimate of the CSC efficiency, which also depends on the position of the Fermi level. We also find that the relative sign of the Rashba SOC in the two subbands plays a key role in determining the behavior of the CSC. Finally, we point out how the two-subband model compares with the standard single-band two-dimensional electron gas.
description: 21 pages, 9 figures, To be Presented to Spintronics XVI, San Diego, August 2023
title: PlayStation 4 vs. Xbox One: Competitive Analysis of the Video Game Industry
Creators: name: Deckert, Carsten
name: Phan Ngoc, Duc Anh
name: Hochschule Düsseldorf
Publisher: name: Hochschule Düsseldorf
Year: 2023
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten

description: Business Cases in Industrial Engineering; 3
Heterointerface engineered electronic and magnetic phases of NdNiO3 thin films
Creators: name: Liu, Jian
name: Kargarian, Mehdi
name: Kareev, Mikhail
name: Gray, Ben
name: Ryan, Phil J.
name: Cruz, Alejandro
name: Tahir, Nadeem
name: Chuang, Yi-De
name: Guo, Jinghua
name: Rondinelli, James M.
name: Freeland, John W.
name: Fiete, Gregory A.
name: Chakhalian, Jak
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Mott physics is characterized by an interaction-driven metal-to-insulator transition in a partially filled band. In the resulting insulating state, antiferromagnetic orders of the local moments typically develop, but in rare situations no long-range magnetic order appears, even at zero temperature, rendering the system a quantum spin liquid. A fundamental and technologically critical question is whether one can tune the underlying energetic landscape to control both metal-to-insulator and Néel transitions, and even stabilize latent metastable phases, ideally on a platform suitable for applications. Here we demonstrate how to achieve this in ultrathin films of NdNiO3 with various degrees of lattice mismatch, and report on the quantum critical behaviours not reported in the bulk by transport measurements and resonant X-ray spectroscopy/scattering. In particular, on the decay of the antiferromagnetic Mott insulating state into a non-Fermi liquid, we find evidence of a quantum metal-to-insulator transition that spans a non-magnetic insulating phase.
description: For updated published version see the link below
title: Magnae Derivationes; [1350-1399]
title: (Fragment aus Buchstabe C: Calculare bis cinnamum)
titleType: Subtitle
Creators: name: Hugutio
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2010

description: Entstehungsort: vermutlich in Süddeutschland, - Entstehungszeit: 2. Hälfte des 14. Jahrhunderts
GRB 131231A: Implications of the GeV emission
Creators: name: Liu, Bin
name: Chen, Wei
name: Liang, Yun-Feng
name: Zhou, Bei
name: He, Hao-Ning
name: Tam, Pak-Hin Thomas
name: Shao, Lang
name: Jin, Zhi-Ping
name: Fan, Yi-Zhong
name: Wei, Da-Ming
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: GRB 131231A was detected by the Large Area Telescope onboard Fermi Space Gamma-ray Telescope. The high energy gamma-ray ($> 100$ MeV) afterglow emission spectrum is $F_ν\propto ν^{-0.54\pm0.15}$ in the first $\sim 1300$ s after the trigger and the most energetic photon has an energy $\sim 62$ GeV arriving at $t\sim 520$ s. With reasonable parameters of the GRB outflow as well as the density of the circum-burst medium, the synchrotron radiation of electrons or protons accelerated at an external forward shock have difficulty accounting for the data. The synchrotron self-Compton radiation of the forward shock-accelerated electrons, instead, can account for both the spectrum and temporal behavior of the GeV afterglow emission. We also show that the prospect for detecting GRB 131231A$-$like GRBs with Cherenkov Telescope Array (CTA) is promising.
description: ApJL in press
REED: Chiplet-Based Accelerator for Fully Homomorphic Encryption
Creators: name: Aikata, Aikata
name: Mert, Ahmet Can
name: Kwon, Sunmin
name: Deryabin, Maxim
name: Roy, Sujoy Sinha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Fully Homomorphic Encryption (FHE) enables privacy-preserving computation and has many applications. However, its practical implementation faces massive computation and memory overheads. To address this bottleneck, several Application-Specific Integrated Circuit (ASIC) FHE accelerators have been proposed. All these prior works put every component needed for FHE onto one chip (monolithic), hence offering high performance. However, they suffer from practical problems associated with large-scale chip design, such as inflexibility, low yield, and high manufacturing cost.
 In this paper, we present the first-of-its-kind multi-chiplet-based FHE accelerator `REED' for overcoming the limitations of prior monolithic designs. To utilize the advantages of multi-chiplet structures while matching the performance of larger monolithic systems, we propose and implement several novel strategies in the context of FHE. These include a scalable chiplet design approach, an effective framework for workload distribution, a custom inter-chiplet communication strategy, and advanced pipelined Number Theoretic Transform and automorphism design to enhance performance.
 Experimental results demonstrate that REED 2.5D microprocessor consumes 96.7 mm$^2$ chip area, 49.4 W average power in 7nm technology. It could achieve a remarkable speedup of up to 2,991x compared to a CPU (24-core 2xIntel X5690) and offer 1.9x better performance, along with a 50% reduction in development costs when compared to state-of-the-art ASIC FHE accelerators. Furthermore, our work presents the first instance of benchmarking an encrypted deep neural network (DNN) training. Overall, the REED architecture design offers a highly effective solution for accelerating FHE, thereby significantly advancing the practicality and deployability of FHE in real-world applications.
Optical Observations of PSR J0205+6449 - the next optical pulsar?
Creators: name: Moran, P.
name: Mignani, R. P.
name: Collins, S.
name: de Luca, A.
name: Rea, N.
name: Shearer, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: PSR J0205+6449 is a young ({\approx} 5400 years), Crab-like pulsar detected in radio and at X and γ-ray energies and has the third largest spin-down flux among known rotation powered pulsars. It also powers a bright synchrotron nebula detected in the optical and X-rays. At a distance of {\approx} 3.2 kpc and with an extinction comparable to the Crab, PSR J0205+6449 is an obvious target for optical observations. We observed PSR J0205+6449 with several optical facilities, including 8m class ground-based telescopes, such as the Gemini and the Gran Telescopio Canarias. We detected a point source, at a significance of 5.5σ, of magnitude i {\approx} 25.5, at the centre of the optical synchrotron nebula, coincident with the very accurate Chandra and radio positions of the pulsar. Thus, we discovered a candidate optical counterpart to PSR J0205+6449. The pulsar candidate counterpart is also detected in the g ({\approx}27.4) band and weakly in the r ({\approx}26.2) band. Its optical spectrum is fit by a power law with photon index Γ0 = 1.9{\pm}0.5, proving that the optical emission if of non-thermal origin, is as expected for a young pulsar. The optical photon index is similar to the X-ray one (ΓX = 1.77{\pm}0.03), although the optical fluxes are below the extrapolation of the X-ray power spectrum. This would indicate the presence of a double spectral break between the X-ray and optical energy range, at variance with what is observed for the Crab and Vela pulsars, but similar to the Large Magellanic Cloud pulsar PSR B0540-69.
description: 13 Pages, 4 Tables, 7 Figures, Accepted for publication in MNRAS
Measurement events relative to temporal quantum reference frames
Creators: name: Hausmann, Ladina
name: Schmidhuber, Alexander
name: Castro-Ruiz, Esteban
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Page-Wootters formalism is a proposal for reconciling the background-dependent, quantum-mechanical notion of time with the background independence of general relativity. However, the physical meaning of this framework remains debated. In this work, we compare two consistent approaches to the Page-Wootters formalism to clarify the operational meaning of evolution and measurements with respect to a temporal quantum reference frame. The so-called "twirled observable" approach implements measurements as operators that are invariant with respect to the Hamiltonian constraint. The "purified measurement" approach instead models measurements dynamically by modifying the constraint itself. While both approaches agree in the limit of ideal clocks, a natural generalization of the purified measurement approach to the case of non-ideal, finite-resource clocks yields a radically different picture. We discuss the physical origin of this discrepancy and argue that these approaches describe operationally distinct situations. Moreover, we show that, for non-ideal clocks, the purified measurement approach yields a time non-local evolution equation, which can lead to non-unitary evolution. Moreover, it implies a fundamental limitation to the operational definition of the temporal order of events. Nevertheless, unitarity and definite temporal order can be restored if we assume that time is discrete.
Identifying Young Stars in Massive Star-Forming Regions for the MYStIX Project
Creators: name: Broos, Patrick S.
name: Getman, Konstantin V.
name: Povich, Matthew S.
name: Feigelson, Eric D.
name: Townsley, Leisa K.
name: Naylor, Tim
name: Kuhn, Michael A.
name: King, R. R.
name: Busk, Heather A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Massive Young star-forming Complex Study in Infrared and X-rays (MYStIX) project requires samples of young stars that are likely members of 20 nearby Galactic massive star-forming regions. Membership is inferred from statistical classification of X-ray sources, from detection of a robust infrared excess that is best explained by circumstellar dust in a disk or infalling envelope, and from published spectral types that are unlikely to be found among field stars. We present the MYStIX membership lists here, and describe in detail the statistical classification of X-ray sources via a \Naive Bayes Classi
description: 47 pages, 7 figures. Accepted for publication of Astrophysical Journal Supplements (with 6 other MYStIX papers). Complete versions of all MYStIX papers are available at http://www.astro.psu.edu/mystix
title: Now What You Hear Is Not a Test: The Invention and Commercialization of Rap Music
Creators: name: Deckert, Carsten
name: Hochschule Düsseldorf
Publisher: name: Hochschule Düsseldorf
Year: 2023
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten

description: Business Cases in Industrial Engineering; 2
Additional file 1 of Relationship between leukocyte counts and large vessel occlusion in acute ischemic stroke
Creators: name: Gabor Tarkanyi
name: Zsofia Nozomi Karadi
name: Zsofia Szabo
name: Istvan Szegedi
name: Laszlo Csiba
name: Laszlo Szapary
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology

description: Additional file 1: Table S1. Univariable associations between baseline characteristics and the presence of LVO in acute ischemic stroke. Figure S1. Receiver operating characteristic curves demonstrating the ability of total and differential leukocyte counts to discriminate the presence of LVO in AIS. Area under the curve (AUC) values and 95% confidence intervals are presented. Table S2. Capability of leukocyte counts to detect large vessel occlusion in acute ischemic stroke. Table S3. Baseline characteristics of patients according to the site of occlusion in the anterior circulation. Table S4. Baseline characteristics of patients according to collateral status in the anterior circulation. Table S5. Demography and clinical characteristics of LVO patients according to the location of LVO. Table S6. Differences in leukocyte counts according to the development of early post-stroke infections (PSI). Table S7. Differences in leukocyte counts according to the presence of cardiovascular risk factors.
title: A non-state-centric conception of social transformation in Spain: 15M
Creators: name: Ouziel, Pablo
Publisher: name: Politika.io
Year: 2019

description: Based on a field research conducted with 213 people who identify themselves as participants of 15M movement in Spain, this article focuses on the representation of a civic (horizontal) public square movement, 15M, by a civil (vertical) political party, Podemos. Parting from this example, the question of public square movements’ aftermath and representation is problematized. The overarching argument of this discussion is that the alternatives for change coming from those advocating for a form of representation led from above cannot represent the spaces of social and political transformation opened up by collective presences such as 15M.
Volume and Euler classes in bounded cohomology of transformation groups
Creators: name: Brandenbursky, Michael
name: Marcinkowski, Michał
Publisher: name: arXiv
Year: 2023
Subjects: subject: Geometric Topology (math.GT)
subject: Dynamical Systems (math.DS)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 51, 53, 55, 57K10, 58D05, 37E30

description: Let $M$ be an oriented smooth manifold, and $\operatorname{Homeo}(M,ω)$ the group of measure preserving homeomorphisms of $M$, where $ω$ is a finite measure induced by a volume form. In this paper we define volume and Euler classes in bounded cohomology of an infinite dimensional transformation group $\operatorname{Homeo}_0(M,ω)$ and $\operatorname{Homeo}(M,ω)$ respectively, and in several cases prove their non-triviality. More precisely, we define:
 - Volume classes in $\operatorname{H}_b^n(\operatorname{Homeo}_0(M,ω))$ where $M$ is a hyperbolic manifold of dimension $n$.
 - Euler classes in $\operatorname{H}_b^2(\operatorname{Homeo}(S,ω))$ where $S$ is a closed hyperbolic surface.
 We show that Euler classes have positive norms for any closed hyperbolic $S$ and volume classes have positive norms for all hyperbolic surfaces and certain hyperbolic $3$-manifolds, and hence they are non-trivial.
description: New chapter on couplings, minor inaccuracies and notation issues corrected. Accepted for publication in Glasgow Mathematical Journal
title: Die Bukowiner Sprachenfrage in der späten Habsburgermonarchie
Creators: name: Poitschek, Agnes Maria
Year: 2022

description: Als multikulturelles Staatsgebilde zeichnete sich die Habsburgermonarchie durch eine Sprachenvielfalt aus, die im „langen 19. Jahrhundert“ gerade in den mehrsprachigen mittel- und osteuropäischen Stadtzentren zu einem wesentlichen Thema des politischen Diskurses wurde. Zahlreiche Arbeiten beschäftigten sich mit der diskursiven Reflexion von Sprachenfragen in verschiedenen Kronländern und Städten Österreich-Ungarns. Wenig Beachtung fand hingegen die Habsburgische Bukowina, die heute oft als Positivbeispiel eines friedlichen Zusammenlebens unterschiedlicher Ethnien angeführt wird. Die vorliegende Masterarbeit kommt ebendiesem Forschungsdesiderat nach und widmet sich der Bukowiner Sprachenfrage im Rahmen einer diskursgeschichtlichen Untersuchung. Im Zuge dessen bedient sie sich den Methoden des diskurslinguistischen Ansatzes der Düsseldorfer Schule sowie der Diskurssemantik. Grundlage der Untersuchung bildet ein Zeitungskorpus aus Pressetexten der vier deutschsprachigen Czernowitzer Zeitungen Bukowinaer Post, Bukowinaer Rundschau, Czernowitzer Allgemeine Zeitung und Czernowitzer Tagblatt aus den Jahren 1890 bis 1914. Die Abhandlung geht der Frage nach, wie die polyglossische Sprachsituation sowie sprachenpolitische Entwicklungen und medial-politische Debatten diskursiv rezipiert werden. Von Interesse ist die inhaltliche/thematische Dimension im Hinblick auf konkrete Domänen, Eigen- und Fremdkategorisierungen ebenso wie die Dimension der Argumentation sowie der sprachlichen Realisierung anhand von Schlagwörtern, Metaphern und Topoi. Ethnikum und Sprache konnten als zentrale Elemente der diskursiv (re-)produzierten Kategorien identifiziert werden. Als dominant erwiesen sich im analysierten Korpus Sprachkonflikte im Kontext der Domänen Bildungswesen und öffentliche Verwaltung. Im Zusammenhang mit der privilegierten Stellung des Deutschen finden sich rekurrente Muster wie die Band-Metapher, die Kitt-Metapher, der Einigkeitstopos oder der Friedenstopos.
Linear response theory for superradiant lasers
Creators: name: Bohnet, Justin G.
name: Chen, Zilong
name: Weiner, Joshua M.
name: Cox, Kevin C.
name: Thompson, James K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We theoretically study a superradiant laser, deriving both the steady-state behaviors and small-amplitude responses of the laser's atomic inversion, atomic polarization, and light field amplitude. Our minimum model for a three-level laser includes atomic population accumulating outside of the lasing transition and dynamics of the atomic population distribution causing cavity frequency tuning, as can occur in realistic experimental systems. We show that the population dynamics can act as real-time feedback to stabilize or de-stabilize the laser's output power, and we derive the cavity frequency tuning for a Raman laser. We extend the minimal model to describe a cold-atom Raman laser using $^{87}$Rb, showing that the minimal model qualitatively captures the essential features of the more complex system. This work informs our understanding of the stability of proposed millihertz linewidth lasers based on ultranarrow optical atomic transitions and will guide the design and development of these next-generation optical frequency references.
description: 18 pages, 20 Figures, 5 page appendix
Guided modes in a hexagonal periodic graph like domain
Creators: name: Delourme, Bérangère
name: Fliss, Sonia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: This paper deals with the existence of guided waves and edge states in particular two-dimensional media obtained by perturbing a reference periodic medium with honeycomb symmetry. This reference medium is a thin periodic domain (the thickness is denoted $δ$ > 0) with an hexagonal structure, which is close to an honeycomb quantum graph. In a first step, we show the existence of Dirac points (conical crossings) at arbitrarily large frequencies if $δ$ is chosen small enough. We then perturbe the domain by cutting the perfectly periodic medium along the so-called zigzag direction, and we consider either Dirichlet or Neumann boundary conditions on the cut edge. In the two cases, we prove the existence of edges modes as well as their robustness with respect to some perturbations, namely the location of the cut and the thickness of the perturbed edge. In particular, we show that different locations of the cut lead to almost-non dispersive edge states, the number of locations increasing with the frequency. All the results are obtained via asymptotic analysis and semi-explicit computations done on the limit quantum graph. Numerical simulations illustrate the theoretical results.
Additional file 1 of Gut microbiome as a response marker for pancreatic enzyme replacement therapy in a porcine model of exocrine pancreas insufficiency
Creators: name: Ritz, Sabrina
name: Hahn, Daniela
name: Haleluya T. Wami
name: Tegelkamp, Karin
name: Dobrindt, Ulrich
name: Schnekenburger, Juergen
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1. Relative abundance of bacterial order (A) and family (B) in healthy Göttingen minipigs (Healthy, n = 10), in Göttingen minipigs with induced exocrine pancreatic insufficiency without treatment (EPI, n = 9) or after 28 days pancreatic enzyme replacement therapy (EPI + PERT, n = 9). Mean values > 0.5% of relative abundance are shown.
Electron transport through a quantum dot assisted by cavity photons
Creators: name: Abdullah, Nzar Rauf
name: Tang, Chi-Shung
name: Manolescu, Andrei
name: Gudmundsson, Vidar
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate transient transport of electrons through a single-quantum-dot controlled by a plunger gate. The dot is embedded in a finite wire that is weakly coupled to leads and strongly coupled to a single cavity photon mode. A non-Markovian density-matrix formalism is employed to take into account the full electron-photon interaction in the transient regime. In the absence of a photon cavity, a resonant current peak can be found by tuning the plunger gate voltage to lift a many-body state of the system into the source-drain bias window. In the presence of an $x$-polarized photon field, additional side peaks can be found due to photon-assisted transport. By appropriately tuning the plunger-gate voltage, the electrons in the left lead are allowed to make coherent inelastic scattering to a two-photon state above the bias window if initially one photon was present in the cavity. However, this photon-assisted feature is suppressed in the case of a $y$-polarized photon field due to the anisotropy of our system caused by its geometry.
description: RevTeX, 12 pages with included eps figures
ABJ anomaly as a U(1) symmetry and Noether's theorem
Creators: name: Benedetti, Valentin
name: Casini, Horacio
name: Magan, Javier M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Adler-Bell-Jackiw anomaly determines the violation of chiral symmetry when massless fermions are coupled to an abelian gauge field. In its seminal paper, Adler noticed that a modified chiral U(1) symmetry could still be defined, at the expense of being generated by a non-gauge-invariant conserved current. We show this internal U(1) symmetry has the special feature that it transforms the Haag duality violating sectors (or non-local operator classes). This provides a simple unifying perspective on the origin of anomaly quantization, anomaly matching, applicability of Goldstone theorem, and the absence of a Noether current. We comment on recent literature where this symmetry is considered to be either absent or non-invertible. We end by recalling the DHR reconstruction theorem, which states 0-form symmetries cannot be non-invertible for d>2, and argue for a higher-form symmetry reconstruction theorem.
description: To appear in SciPost Physics
Speculum historiale (Fragment einer niederdeutschen Übersetzung von Buch XVIII, 53-99); [1300-1399]
Creators: name: Vinzenz Von Beauvais
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2010

description: Entstehungsort: Unbekannt. - Entstehungszeit: 14. Jahrhundert
Computational modeling of stretch induced calcium signaling at the apical membrane domain in umbrella cells
Creators: name: Gupta, Amritanshu
name: Manchanda, Rohit
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Plant Biology

description: The urinary bladder epithelium comprises a specialised population of superficially placed cells called the umbrella cells. The apical membrane domain of umbrella cells has several intriguing morphological properties and is the site for various signaling activities. A key function of umbrella cells is to sense mechanical stimuli as the bladder stretches in response to filling. More specifically, the mechanotransduction of stretch into subcellular signals is brought about by the activation of Piezo1 channels that mediate calcium into the cell interior. The incoming calcium is critical to several aspects of umbrella cell signaling, including regulation of exocytosis, ATP release and downstream purinergic signaling. We report here a computational framework that models stretch-induced mechanotransduction via Piezo1 channels and the resulting calcium signaling in umbrella cells factoring in morphological details of subcellular compartment volumes. Our results show the following: (i) activation of Piezo1 conductance in response to stretch; (ii) development of varying Piezo1 mediated [Ca2+] profiles in subcellular compartments, namely, the apical sub-plasma membrane space, cytosol and mitochondria. The varying calcium amplitudes and temporal profiles in the subcellular compartments indicate highly specialised roles for stretch-mediated calcium in umbrella cells, including its potential effect on the energetics of mitochondria and the regulation of exocytosis.
A Torelli theorem for graphs via quasistable divisors
Creators: name: Abreu, Alex
name: Pacini, Marco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The Torelli theorem establishes that the Jacobian of a smooth projective curve, together with the polarization provided by the theta divisor, fully characterizes the curve. In the case of nodal curves, there exists a concept known as fine compactified Jacobian. The fine compactified Jacobian of a curve comes with a natural stratification that can be regarded as a poset. Furthermore, this poset is entirely determined by the dual graph of the curve and is referred to as the poset of quasistable divisors on the graph. We present a combinatorial version of the Torelli theorem, which demonstrates that the poset of quasistable divisors of a graph completely determines the biconnected components of the graph (up to contracting separating edges). Moreover, we achieve a natural extension of this theorem to tropical curves.
description: MSC: 05Cxx, 14Hxx. 22 pages
Continual Training of Language Models for Few-Shot Learning
Creators: name: Ke, Zixuan
name: Lin, Haowei
name: Shao, Yijia
name: Xu, Hu
name: Shu, Lei
name: Liu, Bing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Recent work on applying large language models (LMs) achieves impressive performance in many NLP applications. Adapting or posttraining an LM using an unlabeled domain corpus can produce even better performance for end-tasks in the domain. This paper proposes the problem of continually extending an LM by incrementally post-train the LM with a sequence of unlabeled domain corpora to expand its knowledge without forgetting its previous skills. The goal is to improve the few-shot end-task learning in these domains. The resulting system is called CPT (Continual PostTraining), which to our knowledge, is the first continual post-training system. Experimental results verify its effectiveness.
Streaming Democratized: Ease Across the Latency Spectrum with Delayed View Semantics and Snowflake Dynamic Tables
Creators: name: Sotolongo, Daniel
name: Mills, Daniel
name: Akidau, Tyler
name: Santhiar, Anirudh
name: Tóth, Attila-Péter
name: Battiston, Ilaria
name: Sharma, Ankur
name: Huang, Botong
name: Zhang, Boyuan
name: Pauliukevich, Dzmitry
name: Sartorello, Enrico
name: Belianski, Igor
name: Kalev, Ivan
name: Benson, Lawrence
name: Papke, Leon
name: Geng, Ling
name: Uhlar, Matt
name: Shah, Nikhil
name: Semmler, Niklas
name: Zhou, Olivia
name: Nowak, Saras
name: Lionheart, Sasha
name: Merker, Till
name: Lifliand, Vlad
name: Grus, Wendy
name: Huang, Yi
name: Zhu, Yiwen
Publisher: name: arXiv
Year: 2025
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Streaming data pipelines remain challenging and expensive to build and maintain, despite significant advancements in stronger consistency, event time semantics, and SQL support over the last decade. Persistent obstacles continue to hinder usability, such as the need for manual incrementalization, semantic discrepancies across SQL implementations, and the lack of enterprise-grade operational features. While the rise of incremental view maintenance (IVM) as a way to integrate streaming with databases has been a huge step forward, transaction isolation in the presence of IVM remains underspecified, leaving the maintenance of application-level invariants as a painful exercise for the user. Meanwhile, most streaming systems optimize for latencies of 100 ms to 3 sec, whereas many practical use cases are well-served by latencies ranging from seconds to tens of minutes.
 We present delayed view semantics (DVS), a conceptual foundation that bridges the semantic gap between streaming and databases, and introduce Dynamic Tables, Snowflake's declarative streaming transformation primitive designed to democratize analytical stream processing. DVS formalizes the intuition that stream processing is primarily a technique to eagerly compute derived results asynchronously, while also addressing the need to reason about the resulting system end to end. Dynamic Tables then offer two key advantages: ease of use through DVS, enterprise-grade features, and simplicity; as well as scalable cost efficiency via IVM with an architecture designed for diverse latency requirements.
 We first develop extensions to transaction isolation that permit the preservation of invariants in streaming applications. We then detail the implementation challenges of Dynamic Tables and our experience operating it at scale. Finally, we share insights into user adoption and discuss our vision for the future of stream processing.
description: 12 pages, 6 figures, to be published in SIGMOD 2025
Sorption of 4He, H2, Ne, N2, CH4 and Kr impurities in graphene oxide at low temperatures. Quantum effects
Creators: name: Dolbin, A. V.
name: Esel'son, V. B.
name: Gavrilko, V. G.
name: Manzhelii, V. G.
name: Vinnikov, N. A.
name: Basnukaeva, R. M.
name: Danchuk, V. V.
name: Mysko, N. S.
name: Bulakh, E. V.
name: Maser, W. K.
name: Benito, A. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Sorption and the subsequent desorption of 4He, H2,Ne, N2, CH4 and Kr gas impurities by graphene oxide (GO), glucose-reduced GO (RGO-Gl) and hydrazine-reduced GO (RGO-Hz) powders have been investigated in the temperature interval 2-290 K. It has been found that the sorptive capacity of the reduced sample RGO-Hz is three to six times higher than that of GO. The reduction of GO with glucose has only a slight effect on its sorptive properties. The temperature dependences of the diffusion coefficients of the GO, RGO-Gl and RGO-Hz samples have been obtained using the measured characteristic times of sorption. It is assumed that the temperature dependences of the diffusion coefficients are determined by the competition of the thermally activated and tunneling mechanisms, the tunneling contribution being dominant at low temperatures.
description: 13 pages, 5 figures
Additional file 1 of Effectiveness of blended learning versus lectures alone on ECG analysis and interpretation by medical students
Creators: name: Viljoen, Charle André
name: Millar, Rob Scott
name: Manning, Kathryn
name: Burch, Vanessa Celeste
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplementary Material 1. The user was provided with a short clinical vignette and ECG with a standardised template for online analysis.
Additional file 2 of Gut microbiome as a response marker for pancreatic enzyme replacement therapy in a porcine model of exocrine pancreas insufficiency
Creators: name: Ritz, Sabrina
name: Hahn, Daniela
name: Haleluya T. Wami
name: Tegelkamp, Karin
name: Dobrindt, Ulrich
name: Schnekenburger, Juergen
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 2. Heat map of the relative abundance of microbial genera in healthy Göttingen minipigs (Healthy, n = 10), in Göttingen minipigs with induced exocrine pancreatic insufficiency without treatment (EPI, n = 9) or after at least 28 days pancreatic enzyme replacement therapy (EPI + PERT, n = 9). Red color represents highest relative abundance, blue color represents lowest relative abundance.