cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gibbula corallioides Locard 1898
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula corallioides

description: Gibbula corallioides Locard, 1898
Present-day: E Atlantic (Cape Verde Islands)
(Locard 1898; MolluscaBase 2020b)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 24, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Electromagnetic Field Produced in High Energy Small Collision System within Charge Density Models of Nucleon
Creators: name: Zhang, Zong-Wei
name: Cen, Xian-Zhuo
name: Deng, Wei-Tian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent experiments show that $Δγ$, an observable designed for detecting the chiral magnetic effect (CME), in small collision system $p+A$ is similar with that in heavy ion collision $A+A$. This brings a challenge to the existence of CME because it is believed that there is no azimuthal correlation between the orientation of the magnetic field ($Φ_B$) and the participant plane ($Φ_2$) in small collision system. In this work, we introduce three charge density models to describe the inner charge distributions of proton and neutron, and calculate the electric and magnetic fields produced in small $p+A$ collisions at both RHIC and LHC energies. Our results show that the contribution of the single projectile proton to the magnetic field is the main source after average over all participants. The azimuthal correlation between $Φ_B$ and $Φ_2$ is small but not vanished. And due to the huge fluctuation of fields strength, the magnetic-field contribution to $Δγ$ could be large.
description: 14 pages, 13 figures
Gibbula courjaulti
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula courjaulti

description: Gibbula courjaulti (Cossmann, 1918) †
Middle Miocene (Langhian): NE Atlantic (France: Loire Basin).
(Glibert 1949)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 24, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Chemical distance in geometric random graphs with long edges and scale-free degree distribution
Creators: name: Gracar, Peter
name: Grauer, Arne
name: Mörters, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 05C80 (Primary), 60K35 (Secondary)

description: We study geometric random graphs defined on the points of a Poisson process in $d$-dimensional space, which additionally carry independent random marks. Edges are established at random using the marks of the endpoints and the distance between points in a flexible way. Our framework includes the soft Boolean model (where marks play the role of radii of balls centred in the vertices), a version of spatial preferential attachment (where marks play the role of birth times), and a whole range of other graph models with scale-free degree distributions and edges spanning large distances. In this versatile framework we give sharp criteria for absence of ultrasmallness of the graphs and in the ultrasmall regime establish a limit theorem for the chemical distance of two points. Other than in the mean-field scale-free network models the boundary of the ultrasmall regime depends not only on the power-law exponent of the degree distribution but also on the spatial embedding of the graph, quantified by the rate of decay of the probability of an edge connecting typical points in terms of their spatial distance.
description: 48 pages, 5 figures
Cosmological Relaxation through the Dark Axion Portal
Creators: name: Domcke, Valerie
name: Schmitz, Kai
name: You, Tevong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The dark axion portal is a coupling of an axion-like particle to a dark photon kinetically mixed with the visible photon. We show how this portal, when applied to the relaxion, can lead to cosmological relaxation of the weak scale using dark photon production. The key backreaction mechanism involves the Schwinger effect: As long as electroweak symmetry is unbroken, Schwinger production of massless Standard Model fermions, which carry dark millicharges, suppresses the dark photon production. Once the electroweak symmetry is broken, the fermions acquire mass and the suppression is lifted. An enhanced dark photon dissipation then traps the relaxion at a naturally small weak scale. Our model thus provides a novel link between the phenomenological dark axion portal, dark photons, and the hierarchy problem of the Higgs mass.
description: 36 pages, 9 figures. Matches published version
Gibbula cremenensis Glibert 1949
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula cremenensis

description: Gibbula cremenensis Andrzejowski, 1830 sensu Glibert, 1949 †
Middle Miocene (Langhian): NE Atlantic (France: Loire Basin).
(Glibert 1949)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 24, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
New bounds on adaptive quantum metrology under Markovian noise
Creators: name: Wan, Kianna
name: Lasenby, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyse the problem of estimating a scalar parameter $g$ that controls the Hamiltonian of a quantum system subject to Markovian noise. Specifically, we place bounds on the growth rate of the quantum Fisher information with respect to $g$, in terms of the Lindblad operators and the $g$-derivative of the Hamiltonian $H$. Our new bounds are not only more generally applicable than those in the literature -- for example, they apply to systems with time-dependent Hamiltonians and/or Lindblad operators, and to infinite-dimensional systems such as oscillators -- but are also tighter in the settings where previous bounds do apply. We derive our bounds directly from the stochastic master equation describing the system, without needing to discretise its time evolution. We also use our results to investigate how sensitive a single detection system can be to signals with different time dependences. We demonstrate that the sensitivity bandwidth is related to the quantum fluctuations of $\partial H/\partial g$, illustrating how 'non-classical' states can enhance the range of signals that a system is sensitive to, even when they cannot increase its peak sensitivity.
description: 21 pages, 2 figures; journal version
Gibbula delgadensis F. Nordsieck 1982
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula delgadensis

description: Gibbula delgadensis F. Nordsieck, 1982
Present-day: NE Atlantic (Azores)
(F. Nordsieck 1982)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 24, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Computing the viscous effect in early-time drop impact dynamics
Creators: name: Mishra, Shruti
name: Rubinstein, Shmuel M.
name: Rycroft, Chris H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The impact of a liquid drop on a solid surface involves many intertwined physical effects, and is influenced by drop velocity, surface tension, ambient pressure and liquid viscosity, among others. Experiments by Kolinski et al. (2014b) show that the liquid-air interface begins to deviate away from the solid surface even before contact. They found that the lift-off of the interface starts at a critical time that scales with the square root of the kinematic viscosity of the liquid. To understand this, we study the approach of a liquid drop towards a solid surface in the presence of an intervening gas layer. We take a numerical approach to solve the Navier-Stokes equations for the liquid, coupled to the compressible lubrication equations for the gas, in two dimensions. With this approach, we recover the experimentally captured early time effect of liquid viscosity on the drop impact, but our results show that lift-off time and liquid kinematic viscosity have a more complex dependence than the square root scaling relationship. We also predict the effect of interfacial tension at the liquid-gas interface on the drop impact, showing that it mediates the lift-off behavior.
Gibbula depressula Sacco 1896
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula depressula

description: Gibbula depressula Sacco, 1896 †
Pliocene (Zanclean): Mediterranean Sea (Italy).
(Chirli 2004)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 24, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Variational Inference with NoFAS: Normalizing Flow with Adaptive Surrogate for Computationally Expensive Models
Creators: name: Wang, Yu
name: Liu, Fang
name: Schiavazzi, Daniele E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Fast inference of numerical model parameters from data is an important prerequisite to generate predictive models for a wide range of applications. Use of sampling-based approaches such as Markov chain Monte Carlo may become intractable when each likelihood evaluation is computationally expensive. New approaches combining variational inference with normalizing flow are characterized by a computational cost that grows only linearly with the dimensionality of the latent variable space, and rely on gradient-based optimization instead of sampling, providing a more efficient approach for Bayesian inference about the model parameters. Moreover, the cost of frequently evaluating an expensive likelihood can be mitigated by replacing the true model with an offline trained surrogate model, such as neural networks. However, this approach might generate significant bias when the surrogate is insufficiently accurate around the posterior modes. To reduce the computational cost without sacrificing inferential accuracy, we propose Normalizing Flow with Adaptive Surrogate (NoFAS), an optimization strategy that alternatively updates the normalizing flow parameters and surrogate model parameters. We also propose an efficient sample weighting scheme for surrogate model training that preserves global accuracy while effectively capturing high posterior density regions. We demonstrate the inferential and computational superiority of NoFAS against various benchmarks, including cases where the underlying model lacks identifiability. The source code and numerical experiments used for this study are available at https://github.com/cedricwangyu/NoFAS.
Transition from Antiferromagnetic to Quadrupole Order in a Modified Square Artificial Spin Ice
Creators: name: Frotanpour, Ali
name: DeLong, Lance E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The results of a numerical study of an ordered substitution of a double-segment into the unit cell of square artificial spin ice are presented. Each pattern vertex has three magnetic moment configurations that compete to form a magnetic ground state in zero applied magnetic field, including nearest-neighbor and next-nearest-neighbor interaction contributions to the total magnetostatic energy. The ground state depends on the number of lattice sites considered and the spacing between the two film segments that comprise the double segment. Monte Carlo simulations reveal that the doub le-segment sublattice adopts long-range antiferromagnetic order that can be supplanted by magnetic quadrupole order by applying an in-plane magnetic field perpendicular to the double-segment easy axis. The quadrupole-ordered state consists of a sublattice of weakly correlated chains of double-segments with antiparallel polarizations, which admits many different ground states that reflect a very high degree of frustration.
Charmed Baryon Physics Circa 2021
Creators: name: Cheng, Hai-Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This is an update of the two articles (H.Y. Cheng, 2009; Cheng, 2015) in which charmed baryon physics around 2007 and 2015, respectively, were reviewed. In this review we emphasize the experimental progress and the theoretical development since 2015.
description: 67 pages, 11 figures, published version in Chin. J. Phys
Validation of edge turbulence codes against the TCV-X21 diverted L-mode reference case
Creators: name: Oliveira, D. S.
name: Body, T.
name: Galassi, D.
name: Theiler, C.
name: Laribi, E.
name: Tamain, P.
name: Stegmeir, A.
name: Giacomin, M.
name: Zholobenko, W.
name: Ricci, P.
name: Bufferand, H.
name: Boedo, J. A.
name: Ciraolo, G.
name: Colandrea, C.
name: Coster, D.
name: de Oliveira, H.
name: Fourestey, G.
name: Gorno, S.
name: Imbeaux, F.
name: Jenko, F.
name: Naulin, V.
name: Offeddu, N.
name: Reimerdes, H.
name: Serre, E.
name: Tsui, C. K.
name: Varini, N.
name: Vianello, N.
name: Wiesenberger, M.
name: Wüthrich, C.
name: Team, the TCV
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Self-consistent full-size turbulent-transport simulations of the divertor and SOL of existing tokamaks have recently become feasible. This enables the direct comparison of turbulence simulations against experimental measurements. In this work, we perform a series of diverted Ohmic L-mode discharges on the TCV tokamak, building a first-of-a-kind dataset for the validation of edge turbulence models. This dataset, referred to as TCV-X21, contains measurements from 5 diagnostic systems -- giving a total of 45 1- and 2-D comparison observables in two toroidal magnetic field directions. The dataset is used to validate three flux-driven 3D fluid-turbulence models: GBS, GRILLIX and TOKAM3X. With each model, we perform simulations of the TCV-X21 scenario, tuning the particle and power source rates to achieve a reasonable match of the upstream separatrix value of density and electron temperature. We find that the simulations match the experimental profiles for most observables at the OMP -- both in terms of profile shape and absolute magnitude -- while a poorer agreement is found towards the divertor targets. The match between simulation and experiment is seen to be sensitive to the value of the resistivity, the heat conductivities, the power injection rate and the choice of sheath boundary conditions. Additionally, despite targeting a sheath-limited regime, the discrepancy between simulations and experiment also suggests that the neutral dynamics should be included. The results of this validation show that turbulence models are able to perform simulations of existing devices and achieve reasonable agreement with experimental measurements. Where disagreement is found, the validation helps to identify how the models can be improved. By publicly releasing the experimental dataset, this work should help to guide and accelerate the development of predictive turbulence simulations of the edge and SOL.
Variational Bihamiltonian Cohomologies and Integrable Hierarchies II: Virasoro symmetries
Creators: name: Liu, Si-Qi
name: Wang, Zhe
name: Zhang, Youjin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove that for any tau-symmetric bihamiltonian deformation of the tau-cover of the Principal Hierarchy associated with a semisimple Frobenius manifold, the deformed tau-cover admits an infinite set of Virasoro symmetries.
5.2: Report processing choices for detector types
Creators: name: Richter, Tobias
Publisher: name: European Spallation Source ERIC
Year: 2015

description: 5.2: Report processing choices for detector types
description: Task 5.1 Creating a standard neutron event data stream for different detector types focuses on software event processing for the expected ESS detector suite. This will deliver generic neutron event information required for scientific experiments. Deliverable 5.2, which presents the results of our investigations in this task, shows that we are in a good position to cope with the processing needs of the different detector types once their configuration is final. For the future of the BrightnESS task, we see no unusual or high impact risks. For the majority of cases, specifications of upcoming detectors and their raw output format are not yet in a state that allows software prototyping. However, during the course of the project thus far, we have developed a good working relationship with the detector group and their partner institutes across Europe. That resulted in a good understanding of the domain and, not least, to two working prototypes of the event formation system for NMX and the Multi-Grid detector ahead of schedule. These two detector systems are a good template for future customized implementations. Most systems are quite similar to the Multi-Grid detector, and with NMX we are close to covering the most complex computational needs. To drive these working prototypes forward, we have put in place a common and modular framework. It hosts the detector-type specific processing algorithms whereby future tasks are divided into manageable modular chunks. With the tools developed, we are confident that we can adapt our processing algorithms and parameters in sync with any new hardware prototypes that become available, any updates to prototype detectors and production versions. We will be able to review quality indicators for individual events, statistics within and across datasets and interactively examine the effect of different filters or code changes. The software will also enable the specialist from ESS’ Data Management and Software Centre (DMSC) or the ESS detector group to fine-tune the event processing pipeline, change detector architecture and varying user needs, and will serve as commissioning and calibration tools.
Gibbula deversa Milaschewitsch 1916
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula deversa

description: Gibbula deversa Milaschewitsch, 1916
Present-day: Black Sea, Sea of Azov.
(MolluscaBase 2019a)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Quasi-localization dynamics in a Fibonacci quantum rotor
Creators: name: Bhattacharjee, Sourav
name: Bandyopadhyay, Souvik
name: Dutta, Amit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We analyze the dynamics of a quantum kicked rotor (QKR) driven with a binary Fibonacci sequence of two distinct drive amplitudes. While the dynamics at low drive frequencies is found to be diffusive, a long-lived pre-ergodic regime emerges in the other limit. Further, the dynamics in this pre-ergodic regime can be associated with the onset of a dynamical quasi-localization, similar to the dynamical localization observed in a regular QKR. We establish that this peculiar behavior arises due to the presence of localized eigenstates of an approximately conserved effective Hamiltonian, which drives the evolution at Fibonacci instants. However, the effective Hamiltonian picture does not persist indefinitely and the dynamics eventually becomes ergodic after asymptotically long times.
description: 11 pages, 6 figures, final version
Gibbula divergens Sacco 1896
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula divergens

description: Gibbula divergens Sacco, 1896 †
Pliocene (Zanclean to Piacenzian): Mediterranean Sea (Italy).
(Chirli 2004)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Gibbula drepanensis
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula drepanensis

description: Gibbula drepanensis (Brugnone, 1873)
Present-day: Mediterranean Sea, NE Atlantic (Canary Islands).
(MolluscaBase 2020c)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Theories with few non-algebraic types over models, and their decompositions
Creators: name: Braunfeld, Samuel
name: Laskowski, Michael C
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C45

description: We consider several ways of decomposing models into parts of bounded size forming a congruence over a base, and show that admitting any such decomposition is equivalent to mutual algebraicity at the level of theories. We also show that a theory $T$ is mutually algebraic if and only if there is a uniform bound on the number of coordinate-wise non-algebraic types over every model, regardless of its cardinality.
description: 6 pages; to appear in Proceedings of the AMS
Dynamical States and Bifurcations in Coupled Thermoacoustic Oscillators
Creators: name: Srikanth, Sneha
name: Pawar, Samadhan A.
name: Manoj, Krishna
name: Sujith, R. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: The emergence of rich dynamical phenomena in coupled self-sustained oscillators, primarily synchronization and amplitude death, has attracted considerable interest in several fields of science and engineering. Here, we present a comprehensive theoretical study on the manifestation of these exquisite phenomena in a reduced-order model of two coupled Rijke tube oscillators, which are prototypical thermoacoustic oscillators. We characterize the dynamical behaviors of two such identical and non-identical oscillators by varying both system parameters (such as the uncoupled amplitudes and the natural frequencies of the oscillators) and coupling parameters (such as coupling strength and coupling delay). The present model captures all the dynamical phenomena -- namely synchronization, phase-flip bifurcation, amplitude death, and partial amplitude death -- observed previously in experiments on coupled Rijke tubes. By performing numerical simulations and deriving approximate analytical solutions, we systematically decipher the conditions and the bifurcations underlying the aforementioned phenomena. The insights provided by this study can be used to understand the interactions between multiple cans in gas turbines combustors and develop suitable control strategies to avert undesirable thermoacoustic oscillations in them.
description: 29 pages including Supplementary Material. 9 figures in main manuscript and 3 figures in Supplementary Material
Crossover from renormalized to conventional diffusion near the 3D Anderson localization transition for light
Creators: name: Cobus, Laura A.
name: Maret, Georg
name: Aubry, Alexandre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on anomalous light transport in the strong scattering regime. Using low-coherence interferometry, we measure the reflection matrix of titanium dioxide powders, revealing crucial features of strong optical scattering which can not be observed with transmission measurements: (i) a subdiffusive regime of transport at early times of flight that is a direct consequence of predominant recurrent scattering loops, and (ii) a crossover to a conventional, but extremely slow, diffusive regime at long times. These observations support previous predictions that near-field coupling between scatterers prohibits Anderson localization of light in three-dimensional disordered media.
description: 13 pages, 7 figures
Phases of $\mathcal{N}=1$ Quivers in $2+1$ Dimensions
Creators: name: Bashmakov, Vladimir
name: Gorini, Nicola
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the IR phases of two-node quiver theories with $\mathcal{N}\,=\,1$ supersymmetry in $d\,=\,2\,+\,1$ dimensions. It turns out that the discussion splits into two main cases, depending on whether the Chern-Simons levels associated with two nodes have the same sign, or the opposite signs, with the latter case being more non-trivial. The determination of the phase diagrams allows us to conjecture certain infrared dualities involving either two quiver theories, or a quiver and adjoint QCD. We also provide a short discussion of quivers possessing time reversal symmetry.
description: 35 pages, 3 appendices, revised version for publication in JHEP
Manual - PR2
Creators: name: Silva, Ana Alexandra
name: Fonseca, Maria do Céu
name: Gonçalves, Olga
name: Marçalo, Maria João
name: Gomes, Fernando
Publisher: name: Zenodo
Year: 2024

description: Este manual foi concebido para fornecer aos educadores, formadores e responsáveis pelo desenvolvimento de programas curriculares uma visão abrangente da criação e implementação de cenários de Realidade Virtual (VR) imersivos, interativos e contextualmente relevantes, adaptados ao ensino e formação profissionais (EFP). Através dos exemplos e diretrizes apresentados, pretendemos inspirar práticas de ensino inovadoras e demonstrar o potencial transformador da realidade virtual na melhoria da proficiência linguística e das competências profissionais. 

Este manual é o segundo produto do projeto VR-VOLL Erasmus+. Foi criado para ser usado como um manual pedagógico e técnico para os grupos-alvo e utilizadores finais, os quais poderão explorar as possibilidades de utilização da tecnologia digital de ponta (RV), na aprendizagem vocacional de línguas. 

A primeira parte inclui uma breve informação sobre o projeto VR-VOLL e a RV, neste contexto específico. O valor acrescentado para os grupos-alvo e os utilizadores finais no VOLL é tratado no âmbito do produto 4 do projeto (Project Result 4 – PR4), Competências na língua estrangeira. A preparação de cenários de RV e a viabilidade da tecnologia de RV em contexto VOLL também são realçadas. A segunda parte fornece informações técnicas sobre a RV. Tem por objetivo sensibilizar os utilizadores para as mais recentes ferramentas digitais. Será, ainda, abordada a tecnologia de RV, com orientações sobre o processo a seguir para criar cenários, de acordo com as necessidades específicas do ensino vocacional. Os cenários de RV criados pelos parceiros e os procedimentos sobre como criar esses cenários também são considerados. 

O manual foi coordenado por Adiyaman Milli Egitim Mudurlugu, com o contributo de todos os parceiros (Universidade de Ciências Aplicadas de Flensburg (Alemanha), Arcola Research Portugal LDA (Portugal), Universidade de Évora (Portugal), Universidade de Cukurova (Turquia), Universidade Técnica de Vilnius (Lituânia).
The effect of boundary conditions on the stability of two-dimensional flows in an annulus with permeable boundary
Creators: name: Ilin, Konstantin
name: Morgulis, Andrey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 76D05, 76E07

description: We consider the stability of two-dimensional viscous flows in an annulus with permeable boundary. In the basic flow, the velocity has nonzero azimuthal and radial components, and the direction of the radial flow can be from the inner cylinder to the outer one or vice versa. In most earlier studies, all components of the velocity were assumed to be given on the entire boundary of the flow domain. Our aim is to study the effect of different boundary conditions on the stability of such flows. We focus on the following boundary conditions: at the inflow part if the boundary (which may be either inner or outer cylinder) all components of the velocity are known; at the outflow part of the boundary (the other cylinder), the normal stress and either the tangential velocity or the tangential stress are prescribed. Both types of boundary conditions are relevant to certain real flows: the first one - to porous cylinders, the second - to flows, where the fluid leaves the flow domain to an ambient fluid which is at rest. It turns out that both sets of boundary conditions make the corresponding steady flows more unstable (compared with earlier works where all components of the velocity are prescribed on the entire boundary). In particular, it is demonstrated that even the classical (purely azimuthal) Couette-Taylor flow becomes unstable to two-dimensional perturbations if one of the cylinders is porous and the normal stress (rather than normal velocity) is prescribed on that cylinder.
Gibbula dubia Baldi 1973
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula dubia

description: Gibbula dubia Báldi, 1973 †
Oligocene (Egerian): Central Paratethys (Hungary).
(Báldi 1973)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Gibbula euomphala
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula euomphala

description: Gibbula euomphala (Philippi, 1836) †
Pliocene (Zanclean): Mediterranean Sea (Italy).
(Chirli 2004)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Deviation bounds and concentration inequalities for quantum noises
Creators: name: Benoist, Tristan
name: Hänggli, Lisa
name: Rouzé, Cambyse
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We provide a stochastic interpretation of non-commutative Dirichlet forms in the context of quantum filtering. For stochastic processes motivated by quantum optics experiments, we derive an optimal finite time deviation bound expressed in terms of the non-commutative Dirichlet form. Introducing and developing new non-commutative functional inequalities, we deduce concentration inequalities for these processes. Examples satisfying our bounds include tensor products of quantum Markov semigroups as well as Gibbs samplers above a threshold temperature.
description: Accepted in Quantum, final version
Merger-induced galaxy transformations in the ARTEMIS simulations
Creators: name: Dillamore, Adam M.
name: Belokurov, Vasily
name: Font, Andreea S.
name: McCarthy, Ian G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using the ARTEMIS set of 45 high-resolution cosmological simulations, we investigate a range of merger-induced dynamical transformations of Milky Way-like galaxies. We first identify populations of accreted stars on highly radial orbits, similar to the 'Gaia Sausage' in the Milky Way. We show that $\approx1/3$ of the ARTEMIS galaxies contain a similar feature, and confirm that they usually comprise stellar debris from the most massive accreted satellite. Selecting 15 galaxies with discs at the present-day, we study their changes around the times of the GS-like mergers. Dark matter haloes of many of these exhibit global changes in shape and orientation, with almost half becoming significantly more spherical when the mergers occur. Focusing on the galaxies themselves, we find that 4/15 have stellar discs which experience large changes in the orientation of their angular momentum (AM) axes, at rates of up to $\sim60$ degrees Gyr$^{-1}$. By calculating the orbital angular momentum axes of the satellites before they are accreted, we show that there is a tendency for the disc's AM to become more aligned with this axis after the merger. We also investigate the origin of in situ retrograde stars, analogous to the 'Splash' in the Milky Way. Tracing them back to earlier snapshots, we demonstrate that they were often disrupted onto their extreme orbits by multiple early mergers. We also find that the total mass of these stars outside the central regions positively correlates with the total accreted stellar mass.
description: 20 pages, 16 figures, published in MNRAS
On the road(s) to the Standard Model
Creators: name: Alonso, Rodrigo
name: West, Mia
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Experimental measurements point at the Standard Model (SM) as the theory of electroweak symmetry breaking, but as we close in on our characterization the question arises of what limits in theory space lead to the SM. The class of theories with this property cannot be ruled out, only constrained to an ever smaller neighbourhood of the SM. In contrast, which class of theories do not posses this limit and can therefore potentially be ruled out experimentally? In this work we study both classes and find evidence to support the Standard Model Effective field theory being the single road to the Standard Model, theories that fall outside this class keeping a `minimum distance' from the SM characterized by a cut-off of at most $ 4πv/g_{\rm SM}$.
PSI: Constructing ad-hoc Simplices to Interpolate High-Dimensional Unstructured Data
Creators: name: Lüders, Stefan
name: Dolag, Klaus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Computational Geometry (cs.CG)
subject: Graphics (cs.GR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Interpolating unstructured data using barycentric coordinates becomes infeasible at high dimensions due to the prohibitive memory requirements of building a Delaunay triangulation. We present a new algorithm to construct ad-hoc simplices that are empirically guaranteed to contain the target coordinates, based on a nearest neighbor heuristic and an iterative dimensionality reduction through projection. We use these simplices to interpolate the astrophysical cooling function $Λ$ and show that this new approach produces good results with just a fraction of the previously required memory.
description: 4 pages, 4 figures
Ischnocera Kellogg 1896
Creators: name: Gustafsson, Daniel R.
name: Zou, Fasheng
name: Bush, Sarah E.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia

description: Ischnocera Kellogg, 1896
Ischnocera Kellogg, 1896: 63.
description: Published as part of Gustafsson, Daniel R., Zou, Fasheng & Bush, Sarah E., 2022, Descriptions of six new species of slender-bodied chewing lice of the Resartor-group (Phthiraptera: Ischnocera: Brueelia-complex), pp. 506-530 in Zootaxa 5104 (4) on page 508, DOI: 10.11646/zootaxa.5104.4.2, http://zenodo.org/record/6332142
Gibbula fanulum
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula fanulum

description: Gibbula fanulum (Gmelin, 1791)
Late Miocene (Tortonian): NE Atlantic (France: Loire Basin).
Pliocene (Zanclean): Mediterranean Sea (Spain: Estepona Basin, Italy, Tunisia).
Pliocene (Piacenzian): Mediterranean Sea (Italy).
Pleistocene: Mediterranean Sea (Balearic Islands, Italy).
Present-day: NE Atlantic (southern Portugal); western Mediterranean Sea.
(Landau et al. 2003)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Transparency and Transformation: Reimagining Harvard's Digital Repository Service
Creators: name: Cossu, Stefano
name: Leigh, Miriam
name: Zakuta, Vitaly
Publisher: name: Zenodo
Year: 2024
Subjects: Stakeholder Engagement
Human-Centered Design
Transparency
OR2024

description: This presentation will describe the Harvard Library DRS Futures Project. It will then detail the initial exploratory phase and principles that informed the requirements and design philosophies that underpin the development phase. Finally, it will share lessons learned and upcoming challenges as the project enters its third year.
Rational Approximations of Quasi-Periodic Problems via Projected Green's Functions
Creators: name: Borgnia, Dan S.
name: Vishwanath, Ashvin
name: Slager, Robert-Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the projected Green's function technique to study quasi-periodic systems such as the Andre-Aubry-Harper (AAH) model and beyond. In particular, we use projected Green's functions to construct a "rational approximate" sequence of transfer matrix equations consistent with quasi-periodic topology, where convergence of these sequences corresponds to the existence of extended eigenfunctions. We motivate this framework by applying it to a few well studied cases such as the almost-Mathieu operator (AAH model), as well as more generic non-dual models that challenge standard routines. The technique is flexible and can be used to extract both analytic and numerical results, e.g. we analytically extract a modified phase diagram for Liouville irrationals. As a numerical tool, it does not require the fixing of boundary conditions and circumvents a primary failing of numerical techniques in quasi-periodic systems, extrapolation from finite size. Instead, it uses finite size scaling to define convergence bounds on the full irrational limit.
description: (main) 6 pages 4 figures, (supplemental) 14 pages, 2 figures
Effect of quantum deformed black hole on BH shadow in two-dimensional Dilaton gravity
Creators: name: Xu, Zhaoyi
name: Tang, Meirong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In recent years, the study of quantum effects near the event horizon of black hole (BH) has attracted extensive attention. It has become one of the important methods to explore BH quantum properties by using the related properties of the quantum deformed black hole. In this work, we study the effect of quantum deformed black hole on BH shadow in two-dimensional Dilaton gravity. In this model, quantum effects are reflected on the quantum correction parameter m. By calculation, we find that: (1) the shape of the shadow boundary of a rotating black hole is determined by the BH spin $a$, the quantum correction parameter $m$ and the BH type parameter $n$; (2) when the spin $a=0$, the shape of the BH shadow is a perfect circle; when $a\neq 0$, the shape is distorted; if the quantum correction parameter $m=0$, their shapes reduce to the cases of Schwarzschild BH and Kerr BH respectively; (3) the degree of distortion of the BH shadow is different for various quantum correction parameters $m$; with the increase of the values of $m$, the shadow will become more and more obvious; (4) the results of different BH type parameter $n$ differ greatly. Since the value of $m$ in actual physics should be very small, the current observations of EHT cannot distinguish quantum effect from BH shadow, and can only constrain the upper limit of $m$. In future BH shadow measurements, it will be possible to distinguish quantum deformed black holes, which will help to better understand the quantum effects of BHs.
description: 18 pages, 8 figures
Combinatorial Calabi flows on surfaces with boundary
Creators: name: Luo, Yanwen
name: Xu, Xu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Motivated by Luo's combinatorial Yamabe flow on closed surfaces \cite{L1} and Guo's combinatorial Yamabe flow on surfaces with boundary \cite{Guo}, we introduce combinatorial Calabi flow on ideally triangulated surfaces with boundary, aiming at finding hyperbolic metrics on surfaces with totally geodesic boundaries of given lengths. Then we prove the long time existence and global convergence of combinatorial Calabi flow on surfaces with boundary. We further introduce fractional combinatorial Calabi flow on surfaces with boundary, which unifies and generalizes the combinatorial Yamabe flow and the combinatorial Calabi flow on surfaces with boundary. The long time existence and global convergence of fractional combinatorial Calabi flow are also proved. These combinatorial curvature flows provide effective algorithms to construct hyperbolic surfaces with totally geodesic boundaries with prescribed lengths.
description: 15 pages. Comments welcomed
Gibbula fereclausa Cossmann & Peyrot 1917
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula fereclausa

description: Gibbula fereclausa Cossmann & Peyrot, 1917 †
Early Miocene (Burdigalian): NE Atlantic (France: Aquitaine Basin).
(Cossmann & Peyrot 1917)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
Aratricerca Gustafsson & Bush 2017
Creators: name: Gustafsson, Daniel R.
name: Zou, Fasheng
name: Bush, Sarah E.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Aratricerca

description: Genus Aratricerca Gustafsson & Bush, 2017
Aratricerca Gustafsson & Bush, 2017: 108
Type species: Aratricerca cirithra Gustafsson & Bush, 2017. By original designation.
Included species
Aratricerca cerata new species
Aratricerca cirithra Gustafsson & Bush, 2017.
Aratricerca cirithra Gustafsson & Bush, 2017: 109.
Aratricerca macki new species
Aratricerca madagascariensis new species
description: Published as part of Gustafsson, Daniel R., Zou, Fasheng & Bush, Sarah E., 2022, Descriptions of six new species of slender-bodied chewing lice of the Resartor-group (Phthiraptera: Ischnocera: Brueelia-complex), pp. 506-530 in Zootaxa 5104 (4) on page 508, DOI: 10.11646/zootaxa.5104.4.2, http://zenodo.org/record/6332142
Organizational Distance Also Matters: How Organizational Distance Among Industrial Research Teams Affect Their Research Productivity
Creators: name: Wang, Dakuo
name: Muller, Michael
name: Yang, Qian
name: Wang, Zijun
name: Tan, Ming
name: Hobson, Stacy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Geographically distributed teams often face challenges in coordination and collaboration, lowering their productivity. Understanding the relationship between team dispersion and productivity is critical for supporting such teams. Extensive prior research has studied these relations in lab settings or using qualitative measures. This paper extends prior work by contributing an empirical case study in a real-world organization, using quantitative measures. We studied 117 new research project teams from the same discipline within an industrial research lab for 6 months. During this time, all teams shared one goal: submitting research papers to the same target conference. We analyzed these teams' dispersion-related characteristics as well as team productivity. Interestingly, we found little statistical evidence that geographic and time differences relate to team productivity. However, organizational and functional distances are predictive of the productivity of the dispersed teams we studied. We discuss the open research questions these findings revealed and their implications for future research.
description: Accepted at CSCW'2022
Gibbula filiformis
Creators: name: Harzhauser, Mathias
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Archaeogastropoda
Trochidae
Gibbula
Gibbula filiformis

description: Gibbula filiformis (de Rayneval, Van den Hecke & Ponzi, 1854) †
Pleistocene (Gelasian, early Pleistocene): Mediterranean Sea (Italy).
(Cerulli-Irelli 1916; Forli et al. 2014; erroneously placed in Paroxystele by Schultz 1970, 1971)
description: Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 25, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088