cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Circular Ribbon Flares and Homologous Jets
Creators: name: Wang, Haimin
name: Liu, Chang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar flare emissions in the chromosphere often appear as elongated ribbons on both sides of the magnetic polarity inversion line (PIL), which has been regarded as evidence of a typical configuration of magnetic reconnection. However, flares having a circular ribbon have rarely been reported, although it is expected in the fan--spine magnetic topology involving reconnection at a three-dimensional (3D) coronal null point. We present five circular ribbon flares with associated surges, using high-resolution and high-cadence halpha blue wing observations obtained from the recently digitized films of Big Bear Solar Observatory. In all the events, a central parasitic magnetic field is encompassed by the opposite polarity, forming a circular PIL traced by filament material. Consequently, a flare kernel at the center is surrounded by a circular flare ribbon. The four homologous jet-related flares on 1991 March 17 and 18 are of particular interest, as (1) the circular ribbons brighten sequentially, with co-spatial surges, rather than simultaneously, (2) the central flare kernels show an intriguing "round-trip" motion and become elongated, and (3) remote brightenings occur at a region with the same magnetic polarity as the central parasitic field and are co-temporal with a separate phase of flare emissions. In another flare on 1991 February 25, the circular flare emission and surge activity occur successively, and the event could be associated with magnetic flux cancellation across the circular PIL. We discuss the implications of these observations combining circular flare ribbons, homologous jets, and remote brightenings for understanding the dynamics of 3D magnetic restructuring.
description: Ap.J., accepted
On Bayesian Mechanics: A Physics of and by Beliefs
Creators: name: Ramstead, Maxwell J. D.
name: Sakthivadivel, Dalton A. R.
name: Heins, Conor
name: Koudahl, Magnus
name: Millidge, Beren
name: Da Costa, Lancelot
name: Klein, Brennan
name: Friston, Karl J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Dynamical Systems (math.DS)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The aim of this paper is to introduce a field of study that has emerged over the last decade called Bayesian mechanics. Bayesian mechanics is a probabilistic mechanics, comprising tools that enable us to model systems endowed with a particular partition (i.e., into particles), where the internal states (or the trajectories of internal states) of a particular system encode the parameters of beliefs about external states (or their trajectories). These tools allow us to write down mechanical theories for systems that look as if they are estimating posterior probability distributions over the causes of their sensory states. This provides a formal language for modelling the constraints, forces, potentials, and other quantities determining the dynamics of such systems, especially as they entail dynamics on a space of beliefs (i.e., on a statistical manifold). Here, we will review the state of the art in the literature on the free energy principle, distinguishing between three ways in which Bayesian mechanics has been applied to particular systems (i.e., path-tracking, mode-tracking, and mode-matching). We go on to examine a duality between the free energy principle and the constrained maximum entropy principle, both of which lie at the heart of Bayesian mechanics, and discuss its implications.
description: 50+7 pages, six figures. Invited contribution to "Making and Breaking Symmetries in Mind and Life," a special issue of the journal Royal Society Interface. First two authors have contributed equally
Laser profile Changes Due to Photon-Axion Induced Beam Splitting
Creators: name: Scarlett, Carol
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This paper looks at a potentially unique measurable due to photon-axion coupling in an external magnetic field. Simulations indicate that probing couplings significantly lower than seen by previous cavity experiments is possible.
An up-to-date review of rutin and its biological and pharmacological activities
Creators: name: Al-Dhabi, Naif Abdullah
name: Valan Arasu, Mariadhas
name: Park, Chang Ha
name: Park, Sang Un
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors
Year: 2015
Subjects: rutin

description: EXCLI Journal; 14:Doc59; ISSN 1611-2156
Systems of equations with a single solution
Creators: name: Esterov, Alexander
name: Gusev, Gleb
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B20, 52A39

description: We classify general systems of polynomial equations with a single solution, or, equivalently, collections of lattice polytopes of minimal positive mixed volume. As a byproduct, this classification provides an algorithm to evaluate the single solution of such a system.
description: 16 pages, 3 figures
Modeling and Emulating a Physiotherapists Role in Robot-Assisted Rehabilitation
Creators: Ran Tao
Renz Ocampo
Jason Fong
Abed Soleymani
Mahdi Tavakoli
Publisher: name: University of Alberta Library
Year: 2020

Ran Tao, Renz Ocampo, Jason Fong, Abed Soleymani, and Mahdi Tavakoli
Correspondents Theory 1800/2000: Philosophical Reflections Upon Epistolary Technics And Praxis In The Analogue And Digital
Creators: name: Ross, Anthony John Charles
Publisher: name: Zenodo
Year: 2015
Subjects: philosophy of technology
phenomenology
Internet studies
epistolary culture

description: Abstract

When we talk about things like the 'lost art of letter-writing' or the 'digital communications revolution,' what do we mean? What do we lose and what do we gain as we move towards digital ways of being in the world? Critically engaging with many of the canonical writers in the philosophy of technology (Martin Heidegger, Albert Borgmann, Don Ihde, Bruno Latour, Hubert Dreyfus and Jürgen Habermas, for example), and following what has been termed the 'empirical turn' in that discipline, this thesis answers such questions by means of a philosophical, comparative study of epistolary technics and praxis in the early nineteenth and 21st centuries, making use of Romantic era archival letters and related materials to compare and contrast our own, Internet-enabled experience of communicating over distance. In so doing, it seeks to contribute towards our understanding of the ways in which information and communication technologies influence humanity by taking a long-view of many of the more radical claims (whether optimistic or pessimistic) for the ways in which the Internet effects change in culture, society and self. The thesis is structured thematically, with chapters examining the experience of distance and presence in these two periods, the potential for meaningful engagements by way of communicative media, the technological reconfiguration of social networks, and shifts in the public/private distinction. In its conclusions it is broadly sympathetic to the somewhat pessimistic positions of Heidegger and Borgmann, finding evidence and supplying argument to support the notion that the Internet does in some circumstances serve to diminish our meaningful involvements with the world and each other. It is, however, critical of many of the more extreme arguments for the substantive impact of the Internet, which very often lean too heavily towards naive technological determinism, neglect the social shaping of technology, overemphasise the radical novelty of the Internet, or simply deny or downplay many of its undoubted benefits.
description: Submitted in total fulfilment of the requirements for the Degree of
Doctor of Philosophy in Information Studies,
Humanities Advanced Technology and Information Institute,
College of Arts,
University of Glasgow
January 2012
Lengerken, Hans von: Ur, Hausrind und Mensch
Creators: name: Jacob-Friesen, Karl Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Lengerken, Hans von: Ur, Hausrind und Mensch. Berlin (Deutscher Bauernverlag) 1955. 181 Seiten mit 252 Abb.
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 25 (1956): Nachrichten aus Niedersachsens Urgeschichte
Swing switching of spin-torque valves
Creators: name: Dunn, Tom
name: Kamenev, Alex
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose a method for inducing magnetization reversal using an AC spin current polarized perpendicular to the equilibrium magnetization of the free magnetic layer. We show that the critical AC spin current is significantly smaller than the corresponding DC one. The effect is understood as a consequence of the underdamped nature of the spin-torque oscillators. It allows to use the kinetic inertia to overcome the residual energy barrier, rather than suppressing the latter by a large spin current. The effect is similar to a swing which may be set into high amplitude motion by a weak near-resonant push. The optimal AC frequency is identified as the upper bifurcation frequency of the corresponding driven nonlinear oscillator. Together with fast switching times it makes the perpendicular AC method to be the most efficient way to realize spin-torque memory valve.
description: 8 pages, 11 figures
Ultra-Low-Complexity Algorithms with Structurally Optimal Multi-Group Multicast Beamforming in Large-Scale Systems
Creators: name: Zhang, Chong
name: Dong, Min
name: Liang, Ben
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this work, we propose ultra-low-complexity design solutions for multi-group multicast beamforming in large-scale systems. For the quality-of-service (QoS) problem, by utilizing the optimal multicast beamforming structure obtained recently in [2], we convert the original problem into a non-convex weight optimization problem of a lower dimension and propose two fast first-order algorithms to solve it. Both algorithms are based on successive convex approximation (SCA) and provide fast iterative updates to solve each SCA subproblem. The first algorithm uses a saddle point reformulation in the dual domain and applies the extragradient method with an adaptive step-size procedure to find the saddle point with simple closed-form updates. The second algorithm adopts the alternating direction method of multipliers (ADMM) method by converting each SCA subproblem into a favorable ADMM structure. The structure leads to simple closed-form ADMM updates, where the problem in each update block can be further decomposed into parallel subproblems of small sizes, for which closed-form solutions are obtained. We also propose efficient initialization methods to obtain favorable initial points that facilitate fast convergence. Furthermore, taking advantage of the proposed fast algorithms, for the max-min fair (MMF) problem, we propose a simple closed-form scaling scheme that directly uses the solution obtained from the QoS problem, avoiding the conventional computationally expensive method that iteratively solves the inverse QoS problem. We further develop lower and upper bounds on the performance of this scaling scheme. Simulation results show that the proposed algorithms offer near-optimal performance with substantially lower computational complexity than the state-of-the-art algorithms for large-scale systems.
description: 15 pages, 7 figures. Accepted by IEEE Transactions on Signal Processing, 2023
Vermessung slawischer Burgwälle im Hannoverschen Wendland
Creators: name: Saile, Thomas
name: Baade, Klaus
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 72 (2003): Nachrichten aus Niedersachsens Urgeschichte
New Asteroid Belt Analogs Using Wise
Creators: name: Patel, Rahul
Publisher: name: Zenodo
Year: 2015
Subjects: circumstellar disks
debris disks
hipparcos
WISE
infrared

description: The slides were presented at the 225th AAS in Seattle as part of my thesis presentation:

   The presence of circumstellar dust in the terrestrial planet zone and asteroid belt regions of stars can be ascertained from the excess flux from main sequence stars in the mid-infrared wavelengths. Finding dust in these regions is significant as it traces material related to terrestrial planet formation. The WISE All-Sky survey presents an opportunity to extend the population of faint disks to flux levels 100x fainter than disks detected by IRAS.

   We use the WISE All-Sky Survey data to detect circumstellar debris disks at the 12 and 22 micron bandpasses (W3 and W4, respectively). We present the detection of a sample of over 214 exozodi and asteroid belt analog candidates, 45% of which are brand new detections at confidence levels >99.5%. This was done by cross-matching Hipparcos main-sequence stars with the WISE All-Sky Data Release for stars within 75 pc and outside the galactic plane (|b|>5 deg) and then seeking color excesses at W3 and W4. In addition to applying the standard WISE photometric flags and filters to remove contaminants from our sample, we also improved our selection techniques by correcting for previously unknown systematic behavior in the WISE photometry, thereby including bright saturated stars into our sample. Our debris disk candidates are reliable detections as well as unprecedentedly faint, due in large part to these improved selection techniques. These new nearby excess hosts are optimal targets for direct imaging campaigns to characterize the disk morphology and to provide a larger sample of well characterized disks with which to understand the overall exoplanetary system architecture.
Ordering in dense fiber bundles, the phyllotactic solution and its application to collagen fibrils
Creators: name: Charvolin, Jean
name: Sadoc, Jean-François
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The shape of the cross section of a dense fiber bundle is related to the symmetry of its molecular packing. However, this statement might be belied by type I collagen fibrils which have a rounded section of high symmetry while structural studies suggest that their molecules are assembled with a long range lateral order of lower symmetry. We examine how phyllotaxis, which is a non conventional crystallographic solution to packing efficiency in situations of high radial symmetry, can establish a link between those two apparently conflicting points. The lateral order imposed by the algorithm of phyllotaxis, which implies an enlargement of the notion of long range lateral order beyond that used for classical crystals, provides a basis for a new analysis of the experimental data.
Evaluation of offspring sex ratio, sex hormones and antioxidant enzymes following exposure to methyl tertiary butyl ether in adult male Sprague-dawley rats
Creators: name: Khalili, Leila
name: Gholami, Soghra
name: Ansari-Lari, Maryam
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors
Year: 2015
Subjects: Methyl tertiary butyl ether (MTBE)
sex ratio
sex hormones
antioxidant enzymes

description: Methyl tertiary butyl ether (MTBE) is an oxygenated fuel additive which has been used widely in many parts of the world. This experiment was performed to determine the effect of MTBE on offspring sex ratio, sex hormones and antioxidant enzymes. A total of 20 adult Sprague-Dawley male rats were divided into four groups and received 0, 400, 800 and 1600 mg/kg/day MTBE by gavages for 30 consecutive days. At the end of the experiment, blood samples were taken for determination of sex hormones and antioxidant enzymes. Then, male rats were mated with healthy unexposed female rats and sex of offspring was determined after birth. Sex ratio was 0.48, 0.50, 0.43 and 0.50 in 0, 400, 800 and 1600 mg/kg/day MTBE groups, respectively (P = 0.91). There was significant decreasing trend for luteinizing hormone (LH) and testosterone in experimental groups (rs = -0.50, P = 0.030 and rs = -0.67, P = 0.002, respectively). No changes were observed for superoxide dismutase. However, decrease in glutathione peroxidase (GPX) was observed in all treatment groups compared with control which was significant in 400 mg/kg/day MTBE group (P = 0.016). The present study showed that paternal exposure to oral MTBE has no effect on offspring sex ratio; while, MTBE exposure could exert dose-dependent changes in serum testosterone and LH in treatment groups. The results of the present study, need to be clarified in the future studies.
description: EXCLI Journal; 14:Doc75; ISSN 1611-2156
Renormalization group flow for fermions into antiferromagnetically ordered phases: Method and mean-field models
Creators: name: Maier, Stefan A.
name: Honerkamp, Carsten
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a functional renormalization group flow for many-fermion lattice models into phases with broken spin-rotational symmetry. The flow is expressed purely in terms of fermionic vertex functions. The symmetry breaking is seeded by a small initial anomalous self-energy which grows at the transition scale and which prevents a runaway-flow at nonzero scales. Focusing on the case of commensurate antiferromagnetism we discuss how the interaction vertex can be parametrized efficiently. For reduced models with long-range bare interactions we show the results of standard mean-field theory are reproduced by the fRG and how anisotropies in the spin sector change the flows. We then describe a more efficient decomposition of the interaction vertex that should allow for the treatment of more general models.
description: revised version; 12 pages, 9 figures
Change of superconducting character in UTe2induced by magnetic field
Creators: name: Kinjo, K.
name: Fujibayashi, H.
name: Kitagawa, S.
name: Ishida, K.
name: Tokunaga, Y.
name: Sakai, H.
name: Kambe, S.
name: Nakamura, A.
name: Shimizu, Y.
name: Homma, Y.
name: Li, D. X.
name: Honda, F.
name: Aoki, D.
name: Hiraki, K.
name: Kimata, M.
name: Sasaki, T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: UTe2 is a recently discovered spin-triplet superconductor. One of the characteristic features of UTe2 is a magnetic field (H)-boosted superconductivity above 16 T when H is applied exactly parallel to the b axis. To date, this superconducting (SC) state has not been thoroughly investigated, and the SC properties as well as the spin state of this high-H SC (HHSC) phase are not well understood. In this study, we performed AC magnetic susceptibility and nuclear magnetic resonance (NMR) measurements and found that, up to 24.8 T, the HHSC state is intrinsic to UTe2 and quite sensitive to the H angle, and that its SC character is different from that in the low-H SC (LHSC) state. The dominant spin component of the spin-triplet pair is along the a axis in the LHSC state but is changed in the HHSC state along the b axis. Our results indicate that H-induced multiple SC states originate from the remaining spin degrees of freedom.
description: 6 pages, 3 figures, 2 tables
Manfred Menke, Studien zu den frühbronzezeitlichen Metalldepots Bayerns
Creators: name: Rech, Manfred
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Manfred Menke, Studien zu den frühbronzezeitlichen Metalldepots Bayerns. Jahresbericht der Bayerischen Bodendenkmalpflege 19-20, 1978-1979. Selbstverlag des Bayerischen Landesamtes für Denkmalpflege, München 1982. 305 Seiten, 122 Abbildungen, davon 28 topographische Karten bzw. Verbreitungskarten, 47 Tabellen
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Andres Furger-Gunti, Die Ausgrabungen im Basler Münster 1
Creators: name: Klee, Margot
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Andres Furger-Gunti, Die Ausgrabungen im Basler Münster 1. Die spätkeltische und augusteische Zeit (1. Jahrh. v. Chr.). Untersuchungen zur spätkeltisch-frührömischen Übergangszeit in Basel 1. Basler Beiträge zur Ur- und Frühgeschichte 6. Habegger Verlag, Derendingen-Solothurn 1979. 313 Seiten, 67 Abbildungen, 43 Tafeln, 6 Beilagen
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Experimental search for the LSND anomaly with the ICARUS detector in the CNGS neutrino beam
Creators: name: Antonello, M.
name: Baibussinov, B.
name: Benetti, P.
name: Calligarich, E.
name: Canci, N.
name: Centro, S.
name: Cesana, A.
name: Cieslik, K.
name: Cline, D. B.
name: Cocco, A. G.
name: Dabrowska, A.
name: Dequal, D.
name: Dermenev, A.
name: Dolfini, R.
name: Farnese, C.
name: Fava, A.
name: Ferrari, A.
name: Fiorillo, G.
name: Gibin, D.
name: Gninenko, S.
name: Guglielmi, A.
name: Haranczyk, M.
name: Holeczek, J.
name: Ivashkin, A.
name: Kisiel, J.
name: Kochanek, I.
name: Lagoda, J.
name: Mania, S.
name: Menegolli, A.
name: Meng, G.
name: Montanari, C.
name: Otwinowski, S.
name: Piazzoli, A.
name: Picchi, P.
name: Pietropaolo, F.
name: Plonski, P.
name: Rappoldi, A.
name: Raselli, G. L.
name: Rossella, M.
name: Rubbia, C.
name: Sala, P.
name: Scantamburlo, E.
name: Scaramelli, A.
name: Segreto, E.
name: Sergiampietri, F.
name: Stefan, D.
name: Stepaniak, J.
name: Sulej, R.
name: Szarska, M.
name: Terrani, M.
name: Varanini, F.
name: Ventura, S.
name: Vignoli, C.
name: Wang, H.
name: Yang, X.
name: Zalewska, A.
name: Zaremba, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report an early result from the ICARUS experiment on the search for nu_mu to nu_e signal due to the LSND anomaly. The search was performed with the ICARUS T600 detector located at the Gran Sasso Laboratory, receiving CNGS neutrinos from CERN at an average energy of about 20 GeV, after a flight path of about 730 km. The LSND anomaly would manifest as an excess of nu_e events, characterized by a fast energy oscillation averaging approximately to sin^2(1.27 Dm^2_new L/ E_nu) = 1/2. The present analysis is based on 1091 neutrino events, which are about 50% of the ICARUS data collected in 2010-2011. Two clear nu_e events have been found, compared with the expectation of 3.7 +/- 0.6 events from conventional sources. Within the range of our observations, this result is compatible with the absence of a LSND anomaly. At 90% and 99% confidence levels the limits of 3.4 and 7.3 events corresponding to oscillation probabilities of 5.4 10^-3 and 1.1 10^-2 are set respectively. The result strongly limits the window of open options for the LSND anomaly to a narrow region around (Dm^2, sin^2(2 theta))_new = (0.5 eV^2, 0.005), where there is an overall agreement (90% CL) between the present ICARUS limit, the published limits of KARMEN and the published positive signals of LSND and MiniBooNE Collaborations.
description: 10 pages, 7 figures
Effects of Augmented-Reality-Based Assisting Interfaces on Drivers' Object-wise Situational Awareness in Highly Autonomous Vehicles
Creators: name: Gao, Xiaofeng
name: Wu, Xingwei
name: Ho, Samson
name: Misu, Teruhisa
name: Akash, Kumar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Although partially autonomous driving (AD) systems are already available in production vehicles, drivers are still required to maintain a sufficient level of situational awareness (SA) during driving. Previous studies have shown that providing information about the AD's capability using user interfaces can improve the driver's SA. However, displaying too much information increases the driver's workload and can distract or overwhelm the driver. Therefore, to design an efficient user interface (UI), it is necessary to understand its effect under different circumstances. In this paper, we focus on a UI based on augmented reality (AR), which can highlight potential hazards on the road. To understand the effect of highlighting on drivers' SA for objects with different types and locations under various traffic densities, we conducted an in-person experiment with 20 participants on a driving simulator. Our study results show that the effects of highlighting on drivers' SA varied by traffic densities, object locations and object types. We believe our study can provide guidance in selecting which object to highlight for the AR-based driver-assistance interface to optimize SA for drivers driving and monitoring partially autonomous vehicles.
description: 10 pages, 11 figures, IV 2022
Quantum Resources Required to Block-Encode a Matrix of Classical Data
Creators: name: Clader, B. David
name: Dalzell, Alexander M.
name: Stamatopoulos, Nikitas
name: Salton, Grant
name: Berta, Mario
name: Zeng, William J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide modular circuit-level implementations and resource estimates for several methods of block-encoding a dense $N\times N$ matrix of classical data to precision $ε$; the minimal-depth method achieves a $T$-depth of $\mathcal{O}{(\log (N/ε))},$ while the minimal-count method achieves a $T$-count of $\mathcal{O}{(N\log(1/ε))}$. We examine resource tradeoffs between the different approaches, and we explore implementations of two separate models of quantum random access memory (QRAM). As part of this analysis, we provide a novel state preparation routine with $T$-depth $\mathcal{O}{(\log (N/ε))}$, improving on previous constructions with scaling $\mathcal{O}{(\log^2 (N/ε))}$. Our results go beyond simple query complexity and provide a clear picture into the resource costs when large amounts of classical data are assumed to be accessible to quantum algorithms.
Constraining the Intrinsic Structure of Top-Quarks
Creators: name: Englert, Christoph
name: Freitas, Ayres
name: Spira, Michael
name: Zerwas, Peter M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The basic structure of top-quarks as spin-1/2 particles is characterized by the radius $R_t$ and the intrinsic magnetic dipole moment $κ_t$, both individually associated with gauge interactions. They are predicted to be zero in pointlike theories as the Standard Model. We derive upper limits of these parameters in the color sector from cross sections measured at Tevatron and LHC in top-pair production $p{\bar{p}}/pp \to t{\bar{t}}$, and we predict improved limits expected from LHC in the future, especially for analyses exploiting boosted top final states. An additional method for measuring the intrinsic parameters is based on $t \bar{t} + jet$ final states.
description: 9 pages, 2 figures, 1 table; published version
On a conjecture of De Giorgi about the phase-field approximation of the Willmore functional
Creators: name: Bellettini, Giovanni
name: Freguglia, Mattia
name: Picenni, Nicola
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 49J45, 49Q20

description: In 1991 De Giorgi conjectured that, given $λ>0$, if $μ_\varepsilon$ stands for the density of the Allen-Cahn energy and $v_\varepsilon$ represents its first variation, then $\int [v_\varepsilon^2 + λ] dμ_\varepsilon$ should $Γ$-converge to $cλ\mathrm{Per}(E) + k \mathcal{W}(Σ)$ for some real constant $k$, where $\mathrm{Per}(E)$ is the perimeter of the set $E$, $Σ=\partial E$, $\mathcal{W}(Σ)$ is the Willmore functional, and $c$ is an explicit positive constant. A modified version of this conjecture was proved in space dimensions $2$ and $3$ by Röger and Schätzle, when the term $\int v_\varepsilon^2 \, dμ_\varepsilon$ is replaced by $ \int v_\varepsilon^2 {\varepsilon}^{-1} dx$, with a suitable $k>0$. In the present paper we show that, surprisingly, the original De Giorgi conjecture holds with $k=0$. Further properties on the limit measures obtained under a uniform control of the approximating energies are also provided.
description: 32 pages. Comments are welcome!
Dieter Mertens, Der Tempel von Segesta und die dorische Tempelbaukunst des griechischen Westens in klassischer Zeit
Creators: name: Knell, Heiner
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Dieter Mertens, Der Tempel von Segesta und die dorische Tempelbaukunst des griechischen Westens in klassischer Zeit. Mit einem Beitrag von Vincenzo Tusa. Deutsches Archäologisches Institut Rom, Sonderschriften 6. Verlag Philipp von Zabern, Mainz 1984. Textband mit XIV, 256 Seiten, 80 Abbildungen; Tafelband mit 96 Tafeln und 33 Beilagen
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
η transitions between charmonia with meson loop contributions
Creators: name: Chen, Dian-Yong
name: Liu, Xiang
name: Matsuki, Takayuki
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the $η$ transitions between $ψ(4040/4160)$ and $J/ψ$ by introducing charmed meson loops in an effective Lagrangian approach to enhance the decay amplitudes. The branching fractions $\mathcal{B}[ψ(4040) \to J/ψη]$ and $\mathcal{B}[ψ(4160) \to J/ψη]$ estimated in this paper can remarkably explain the experimental measurements of Belle and BESIII within a reasonable parameter range. The $η^\prime$ transition between $ψ(4160)$ and $J/ψ$ is also investigated, and the branching fraction is under the upper limit of CLEO, which can be tested by future experiments.
description: 6 pages, 4 figures. More contents and discussions added. Typos corrected. Accepted by Phys. Rev. D
The Framework For Unified Systems Engineering And Design Of Wind Plants
Creators: name: Pierre-Elouan Réthoré
name: Zahle, Frederik
name: Dykes, Katherine
name: Graf, Peter
name: Ning, Andrew
Publisher: name: Zenodo
Year: 2015
Subjects: OpenMDAO
FUSED-Wind

description: Presentation of the Framework for Unified Systems Engineering and Design of Wind Plants (FUSED-Wind), and open source framework for multi-disciplinary analysis and optimization (OpenMDAO).
Conway-Gordon type theorem for the complete four-partite graph $K_{3,3,1,1}$
Creators: name: Hashimoto, Hiroka
name: Nikkuni, Ryo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M15, 57M25

description: We give a Conway-Gordon type formula for invariants of knots and links in a spatial complete four-partite graph $K_{3,3,1,1}$ in terms of the square of the linking number and the second coefficient of the Conway polynomial. As an application, we show that every rectilinear spatial $K_{3,3,1,1}$ contains a nontrivial Hamiltonian knot.
description: 21 pages, 11 figures
Quantification of follow-up time in oncology clinical trials with a time-to-event endpoint: Asking the right questions
Creators: name: Rufibach, Kaspar
name: Grinsted, Lynda
name: Li, Jiang
name: Weber, Hans-Jochen
name: Zheng, Cheng
name: Zhou, Jiangxiu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: 62N02

description: For the analysis of a time-to-event endpoint in a single-arm or randomized clinical trial it is generally perceived that interpretation of a given estimate of the survival function, or the comparison between two groups, hinges on some quantification of the amount of follow-up. Typically, a median of some loosely defined quantity is reported. However, whatever median is reported, is typically not answering the question(s) trialists actually have in terms of follow-up quantification. In this paper, inspired by the estimand framework, we formulate a comprehensive list of relevant scientific questions that trialists have when reporting time-to-event data. We illustrate how these questions should be answered, and that reference to an unclearly defined follow-up quantity is not needed at all. In drug development, key decisions are made based on randomized controlled trials, and we therefore also discuss relevant scientific questions not only when looking at a time-to-event endpoint in one group, but also for comparisons. We find that different thinking about some of the relevant scientific questions around follow-up is required depending on whether a proportional hazards assumption can be made or other patterns of survival functions are anticipated, e.g. delayed separation, crossing survival functions, or the potential for cure. We conclude the paper with practical recommendations.
description: 31 pages
BPS domain walls in N=4 supergravity and dual flows
Creators: name: Cassani, Davide
name: Dall'Agata, Gianguido
name: Faedo, Anton F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish the conditions for supersymmetric domain wall solutions to N=4 gauged supergravity in five dimensions. These read as BPS first-order equations for the warp factor and the scalar fields, driven by a superpotential and supplemented by a set of constraints that we specify in detail. Then we apply our results to certain consistent truncations of IIB supergravity, thus exploring their dual field theory renormalization group flows. We find a universal flow deforming superconformal theories on D3-branes at Calabi-Yau cones. Moreover, we obtain a superpotential for the solution corresponding to the baryonic branch of the Klebanov-Strassler theory, as well as the superpotential for the flow describing D3 and wrapped D5-branes on the resolved conifold.
description: 42 pages, 1 figure. v2: minor changes, matches published version
Peter C. Bol, Antike Bronzetechnik. Kunst und Handwerk antiker Erzbildner
Creators: name: Herrmann, Hans-Volkmar
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Peter C. Bol, Antike Bronzetechnik. Kunst und Handwerk antiker Erzbildner. Verlag C. H. Beck, München 1985. 211 Seiten, 136 Abbildungen
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Generalized universality of higher transverse moments of quark transverse momentum dependent correlators
Creators: name: Buffing, M. G. A.
name: Mukherjee, A.
name: Mulders, P. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The color gauge-invariant transverse momentum dependent (TMD) quark correlators contain process dependent gauge links in the bilocal matrix elements. In this paper, we split these process dependent correlators into universal TMD correlators, which in turn can be parametrized in universal TMD distribution functions. The process dependence is contained in gluonic pole factors, of which the value is determined by the gauge link. The operator structures of the universal TMD correlators are identified using transverse moments. In this paper, specific results for double transverse weighting of quark TMDs are given. In particular, we show that for a spin 1/2 target one has three universal time-reversal even leading `pretzelocity distributions', two of which involve double gluonic pole matrix elements and come with process dependent gluonic pole factors. We generalize the results for single and double weighting to TMD correlators of any specific rank, illustrating it for unpolarized, spin 1/2 and spin 1 targets.
description: 15 pages, minor corrections and updated references
Comparing Forecasters and Abstaining Classifiers
Creators: name: Choe, Yo Joong
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: subject: Statistics
subject: FOS: Mathematics
classificationCode: 89999
subject: Information and Computing Sciences not elsewhere classified
subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: This thesis concerns nonparametric statistical methods for comparing black-box predictors, namely sequential forecasters and abstaining classifiers. In the first part of the thesis, we develop anytime-valid estimation and testing approaches for comparing probability forecasters on sequentially occurring events. Our main contribution is the development of confidence sequences (CS) that estimate the time-varying average score difference between the forecasters. Unlike classical confidence intervals, CSs can be continuously monitored over time while retaining their coverage guarantees. The CSs also do not require any distributional assumptions on the dynamics of the outcomes or on the forecasting models. We additionally develop e-processes and p-processes, which are testing counterparts to CSs that are anytime-valid, i.e., valid at any data-dependent stopping times. In the second part of the thesis, we consider the problem of evaluating and comparing black-box abstaining classifiers. Abstaining classifiers have the option to withhold predictions on inputs that they are uncertain about, making them increasingly popular in safety-critical applications. We introduce a novel approach and perspective to the evaluation problem by treating the abstentions of a classifier as missing data. Our approach is centered around defining the counterfactual score, which measures the expected performance of the classifier had it not been allowed to abstain. The missing data perspective clarifies the precise identifying conditions for the counterfactual score, requiring independent evaluation data and stochastic abstentions, and paves the way for a nonparametrically efficient and doubly robust estimator for the score. The approach also straightforwardly extends to estimating the difference in two counterfactual scores under distinct abstention mechanisms.
Topfarm, Hawtopt, Airfoilopt: Three Fused-Wind Based Toolsets
Creators: name: Pierre-Elouan Réthoré
name: Zahle, Frederik
Publisher: name: Zenodo
Year: 2015
Subjects: OpenMDAO
FUSED-Wind

description: A presentation about 3 FUSED-Wind based tools developed at DTU Wind Energy.

TOPFARM is a tool to optimize wind farm layout from the wind farm owner perspective.

HawtOpt is a tool to perform a coupled aero-elastic-structural optimization of wind turbine rotors.

AirfoilOpt is a tool to perform coupled aero-structrual optimization of wind turbine blade airfoils.
Data management in perspective: the career profile of data managers
Creators: name: Molloy, Laura
name: Snow, Kellie
name: Goldstein, Stephane
name: Davidson, Joy
Publisher: name: Zenodo
Year: 2011
Subjects: research data management, data management skills, career profile,

description: The Data Management Skills Support Initiative (DaMSSI) has drawn together a range of short career profiles to illustrate the relevance of data management skills to four graduate professions represented by training projects of the JISC Managing Research Data programme 2009-13. These professions are: conservator; social science researcher; clinical psychologist and archaeologist. In addition a fifth profile describes the role of data manager. Each profile demonstrates how the value of data management skills learned alongside other research skills during graduate and postgraduate study contributes to and underpins high-quality professional performance.
 DaMSSI has developed this career profile for describing the work of data managers, to help raise awareness about this emerging new profession.
description: The project is described here: https://core.ac.uk/download/pdf/296147915.pdf
A Surface Stacking Fault Energy Approach to Predicting Defect Nucleation in Surface-Dominated Nanostructures
Creators: name: Jiang, Jin-Wu
name: Leach, Austin M.
name: Gall, Ken
name: Park, Harold S.
name: Rabczuk, Timon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a surface stacking fault (SSF) energy approach to predicting defect nucleation from the surfaces of surface-dominated nanostructure such as FCC metal nanowires. The approach leads to a criteria that predicts the initial yield mechanism via either slip or twinning depending on whether the unstable twinning energy or unstable slip energy is smaller as determined from the resulting SSF energy curve. The approach is validated through a comparison between the SSF energy calculation and low-temperature classical molecular dynamics simulations of copper nanowires with different axial and transverse surface orientations, and cross sectional geometries. We focus on the effects of the geometric cross section by studying the transition from slip to twinning previously predicted in moving from a square to rectangular cross section for $\ <100\ > /\{100\}$ nanowires, and also for moving from a rhombic to truncated rhombic cross sectional geometry for $\ <110\ >$ nanowires. \hsp{We also provide the important demonstration that the criteria is able to predict the correct deformation mechanism when full dislocation slip is considered concurrently with partial dislocation slip and twinning. This is done in the context of rhombic aluminum nanowires which do not show a tensile reorientation due to full dislocation slip.} We show that the SSF energy criteria successfully predicts the initial mode of surface-nucleated plasticity at low temperature, while also discussing the effects of strain and temperature on the applicability of the criterion.
description: revisions according to referee suggestions, full dislocation fault discussed, 15 pages, 21 figures
Split Two-Tower Model for Efficient and Privacy-Preserving Cross-device Federated Recommendation
Creators: name: Qin, Jiangcheng
name: Liu, Baisong
name: Zhang, Xueyuan
name: Qian, Jiangbo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Federated Recommendation can mitigate the systematical privacy risks of traditional recommendation since it allows the model training and online inferring without centralized user data collection. Most existing works assume that all user devices are available and adequate to participate in the Federated Learning. However, in practice, the complex recommendation models designed for accurate prediction and massive item data cause a high computation and communication cost to the resource-constrained user device, resulting in poor performance or training failure. Therefore, how to effectively compress the computation and communication overhead to achieve efficient federated recommendations across ubiquitous mobile devices remains a significant challenge. This paper introduces split learning into the two-tower recommendation models and proposes STTFedRec, a privacy-preserving and efficient cross-device federated recommendation framework. STTFedRec achieves local computation reduction by splitting the training and computation of the item model from user devices to a performance-powered server. The server with the item model provides low-dimensional item embeddings instead of raw item data to the user devices for local training and online inferring, achieving server broadcast compression. The user devices only need to perform similarity calculations with cached user embeddings to achieve efficient online inferring. We also propose an obfuscated item request strategy and multi-party circular secret sharing chain to enhance the privacy protection of model training. The experiments conducted on two public datasets demonstrate that STTFedRec improves the average computation time and communication size of the baseline models by about 40 times and 42 times in the best-case scenario with balanced recommendation accuracy.
Gioia de Luca, Altertümer von Pergamon XI 4
Creators: name: Pinkwart, Doris
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Gioia de Luca, Altertümer von Pergamon XI 4. Das Asklepieion 4. Via Tecta und Hallenstraße: Die Funde. Mit einem Beitrag von Hans Voegtli. Verlag Walter de Gruyter, Berlin 1984. IX und 163 Seiten, 70 Tafeln
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Peter und Hilde Zazoff, Gemmensammler und Gemmenforscher
Creators: name: Borbein, Adolf H.
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Peter und Hilde Zazoff, Gemmensammler und Gemmenforscher. Von einer noblen Passion zur Wissenschaft. Verlag C. H. Beck, München 1983. XII, 285 Seiten, 55 Textabbildungen, 48 Tafeln
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Schlesien Versus Sparta. Gerhart Hauptmanns Besinnung Auf Schlesische Identität Im Kontext Der Rassenideologie
Creators: name: Tempel, Bernhard
Publisher: name: Zenodo
Year: 2014
Subjects: Hauptmann, Gerhart
Sparta
Schlesien
Eugenik

description: Mehrfach setzt der deutsche Dichter Gerhart Hauptmann (1862-1946) zwischen 1906 und 1942 Schlesien und Sparta in Beziehung. Im Reisetagebuch seiner Griechenlandreise erinnert ihn die Landschaft Spartas an die schlesische Landwirtschaftsidylle und eine Liebschaft während seiner Ausbildung in Lederose. Der veröffentlichte Reisebericht 'Griechischer Frühling' bezieht die Bevölkerungspolitik Spartas nach den Lykurgischen Gesetzen ein, die der deutschen Eugenik (von Hauptmanns Freund Alfred Ploetz 1895 als "Rassenhygiene" inauguriert) als vorbildlich galten. Zu einer Entgegensetzung von Sparta und Schlesien, in deren Landschaften er weiterhin Gemeinsamkeiten sieht, kommt Hauptmann 1922 in einem Paralipomenon zum Fragment gebliebenen Roman 'Der neue Chistophorus', wo der sein idealisiertes Selbstbild, den Bergpater, erklären läßt, spartanisches Freiheitsdrang werde in Schlesien nie heimisch sein. Vollends kritisch wird schließlich der Blick auf Sparta Ende der 1930er Jahre: Hauptmann begreift dann Schlesien als Land der Mischung und seine Familie als "Kolonisten"; es deutet sich in Tagebuchaufzeichnungen an, daß er Schlesien als Gegenmodell zu Sparta entwirft, dem (nach Ernst Baltrusch) "ersten totalitären Staat der Weltgeschichte", in dem Kunst - für Hauptmann das Maß aller Dinge - gegenüber der einseitig auf körperliche Tauglichkeit des Nachwuchses und Reinheit der Rasse ausgerichteten keinen Platz hat. Die Analogien zwischen der Rassenpolitik im Dritten Reich und Sparta (auch in zeitgenössischen Berufungen auf Sparta) nahm er wahr und lehnte beides ab.
description: Erstveröffentlichung:

Tempel, Bernhard: Schlesien versus Sparta. Gerhart Hauptmanns Besinnung auf schlesische Identität im Kontext der Rassenideologie, in: Das deutsche Kulturerbe in Schlesien. Wege und Perspektiven der Forschung / hrsg. von Anna Mańko-Matysiak, Eef Overgaauw u. Tobias Weger. München 2014 (Schriften des Bundesinstituts für Kultur und Geschichte der Deutschen im östlichen Europa 51), S. 171-184

Vortrag auf der Tagung "Das deutsche Kulturerbe in Schlesien", Berlin, 29.2.-2.3.2012 (http://staatsbibliothek-berlin.de/die-staatsbibliothek/ausstellungen-und-veranstaltungen/detail/article/2012-01-03-5551/)