cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gate reflectometry in dense quantum dot arrays
Creators: name: Ansaloni, Fabio
name: Bohuslavskyi, Heorhii
name: Fedele, Federico
name: Rasmussen, Torbjørn
name: Brovang, Bertram
name: Berritta, Fabrizio
name: Heskes, Amber
name: Li, Jing
name: Hutin, Louis
name: Venitucci, Benjamin
name: Bertrand, Benoit
name: Vinet, Maud
name: Niquet, Yann-Michel
name: Chatterjee, Anasua
name: Kuemmeth, Ferdinand
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Silicon quantum devices are maturing from academic single- and two-qubit devices to industrially-fabricated dense quantum-dot (QD) arrays, increasing operational complexity and the need for better pulsed-gate and readout techniques. We perform gate-voltage pulsing and gate-based reflectometry measurements on a dense 2$\times$2 array of silicon quantum dots fabricated in a 300-mm-wafer foundry. Utilizing the strong capacitive couplings within the array, it is sufficient to monitor only one gate electrode via high-frequency reflectometry to establish single-electron occupation in each of the four dots and to detect single-electron movements with high bandwidth. A global top-gate electrode adjusts the overall tunneling times, while linear combinations of side-gate voltages yield detailed charge stability diagrams. To test for spin physics and Pauli spin blockade at finite magnetic fields, we implement symmetric gate-voltage pulses that directly reveal bidirectional interdot charge relaxation as a function of the detuning between two dots. Charge sensing within the array can be established without the involvement of adjacent electron reservoirs, important for scaling such split-gate devices towards longer 2$\times$N arrays. Our techniques may find use in the scaling of few-dot spin-qubit devices to large-scale quantum processors.
description: 13 pages including appendices and 9 figures
Low energy dynamics of $U(1)$ vortices in systems with cholesteric vacuum structure
Creators: name: Peterson, Adam
name: Shifman, Mikhail
name: Tallarita, Gianni
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss flux tubes in systems with $U(1)$ gauge, and spin-orbit locked $SO(3)_{S+L}$ symmetry. The spin-orbit locking is achieved explicitly in the Lagrangian by introducing a parity violating twist term which causes the spontaneous breaking of $SO(3)_{S+L} \rightarrow SO(2)$. Additionally, this term causes a spontaneous breaking of the translational symmetry along a particular direction. Thus, the system appears with a cholesteric vacuum under certain conditions of the parameter space. With this term, the system admits $U(1)$ topologically stable vortices with additional structure in the vortex cores. This added structure leads to additional moduli appearing in the low energy dynamics. We determine these solutions and their low energy theory.
description: 25 pages, 11 figures
An Adaptive Fuzzy Reinforcement Learning Cooperative Approach for the Autonomous Control of Flock Systems
Creators: name: Qu, Shuzheng
name: Abouheaf, Mohammed
name: Gueaieb, Wail
name: Spinello, Davide
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The flock-guidance problem enjoys a challenging structure where multiple optimization objectives are solved simultaneously. This usually necessitates different control approaches to tackle various objectives, such as guidance, collision avoidance, and cohesion. The guidance schemes, in particular, have long suffered from complex tracking-error dynamics. Furthermore, techniques that are based on linear feedback strategies obtained at equilibrium conditions either may not hold or degrade when applied to uncertain dynamic environments. Pre-tuned fuzzy inference architectures lack robustness under such unmodeled conditions. This work introduces an adaptive distributed technique for the autonomous control of flock systems. Its relatively flexible structure is based on online fuzzy reinforcement learning schemes which simultaneously target a number of objectives; namely, following a leader, avoiding collision, and reaching a flock velocity consensus. In addition to its resilience in the face of dynamic disturbances, the algorithm does not require more than the agent position as a feedback signal. The effectiveness of the proposed method is validated with two simulation scenarios and benchmarked against a similar technique from the literature.
description: 7 pages, 2 figures
title: Carotid-Cavernous Fistula whithout orbital involvement: diagnosis with Spiral CT Angiography
Creators: name: Cambra Marti, Maria Rosa
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Arteriovenous malformations
subject: Contrast agent-intravenous
subject: CT-Angiography
subject: Neuroradiology brain

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The word “fistula” means abnormal connection between two structures that are normally not connected. An arteriovenous fistula is an abnormal connection between an artery and a vein, lacking intervening capillary nidus. A fistula can develop in...
Low-light image enhancement based on U-Net and Haar wavelet
Creators: name: Batziou Elissavet
name: Ioannidis, Konstantinos
name: Patras  Ioannis
name: Vrochidis Stefanos
name: Kompatsiaris  Ioannis
Publisher: name: Zenodo
Year: 2023
Subjects: Digital Twin
3D Representation
Smart Construction

description: This poster was published at the 29th International Conference on Multimedia Modeling, organized from the 9th until the 12th of January, 2023 in Bergen, Norway. Abstract Low-light image enhancement has been very popular for improving the visual quality of image representations, while low-light images often require advanced techniques to improve the perception of information for a human viewer. One of the main objectives in increasing the lighting conditions is to retain patterns, texture, and style with minimal deviations from the considered image. To this direction, we propose a low-light image enhancement method with Haar wavelet-based pooling to preserve texture regions and increase their quality
The $L^2$-(co)homology of groups with hierarchies
Creators: name: Okun, Boris
name: Schreve, Kevin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F55, 20J05, 20F65, 57S25

description: We study group actions on manifolds that admit hierarchies, which generalizes the idea of Haken n-manifolds introduced by Foozwell and Rubinstein. We show that these manifolds satisfy the Singer conjecture in dimensions $n \le 4$. Our main application is to Coxeter groups whose Davis complexes are manifolds; we show that the natural action of these groups on the Davis complex has a hierarchy. Our second result is that the Singer conjecture is equivalent to the cocompact action dimension conjecture, which is a statement about all groups, not just fundamental groups of closed aspherical manifolds.
description: 11 pages
Results of the evaluation of Self-Adaptative Troubleshooting for guiding resolution of malfunctions in Aircraft Manufacturing
Creators: name: Anonymous
Publisher: name: Zenodo
Year: 2020

description: It contains a video demonstration of the operation of the guided troubleshooting algorithm and the images relating to the two tests mentioned in the evaluation section, which we have not included in the paper. This publication is made on this way provisionally basis to respect the rules of the double-blind review. Later, they will be published on our corporate website, in full detail.
Simulations on the survivability of Tidal Dwarf Galaxies
Creators: name: Ploeckinger, Sylvia
name: Recchi, Simone
name: Hensler, Gerhard
name: Kroupa, Pavel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present detailed numerical simulations of the evolution of Tidal Dwarf Galaxies (TDGs) after they kinematically decouple from the rest of the tidal arm to investigate their survivability. Both the short-term (500 Myr) response of TDGs to the stellar feedback of different underlying stellar populations as well as the long-term evolution that is dominated by a time dependent tidal field is examined. All simulated TDGs survive until the end of the simulation time of up to 3 Gyr, despite their lack of a stabilising dark matter component.
description: Proceedings of IAU Symposium 309, Vienna, ed. B.L. Ziegler, F. Combes, H. Dannerbauer, M. Verdugo
A general theory for anisotropic Kirchhoff-Love shells with in-plane bending of embedded fibers
Creators: name: Duong, Thang Xuan
name: Khiêm, Vu Ngoc
name: Itskov, Mikhail
name: Sauer, Roger Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This work presents a generalized Kirchhoff-Love shell theory that can explicitly capture fiber-induced anisotropy not only in stretching and out-of-plane bending, but also in in-plane bending. This setup is particularly suitable for heterogeneous and fibrous materials such as textiles, biomaterials, composites and pantographic structures. The presented theory is a direct extension of classical Kirchhoff-Love shell theory to incorporate the in-plane bending resistance of fibers. It also extends existing second-gradient Kirchhoff-Love shell theory for initially straight fibers to initially curved fibers. To describe the additional kinematics of multiple fiber families, a so-called in-plane curvature tensor -- which is symmetric and of second order -- is proposed. The effective stress tensor and the in-plane and out-of-plane moment tensors are then identified from the mechanical power balance. These tensors are all second order and symmetric in general. Constitutive equations for hyperelastic materials are derived from different expressions of the mechanical power balance. The weak form is also presented as it is required for computational shell formulations based on rotation-free finite element discretizations.
description: This version changes the title for a better clarity. It adds two appendixes for the proof in frame invariants and comparison with Cosserat theory. It improves further text editing. Results unchanged
title: Independent experimental assessment of MRI-induced SAR distribution
Creators: name: Colgan, Niall
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: MR physics
subject: Molecular imaging
subject: Ultrasound physics
subject: MR
subject: CT
subject: Ultrasound
subject: Experimental investigations
subject: Physics
subject: Imaging sequences
subject: Biological effects
subject: Image verification
subject: Image registration

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: During an MR procedure, most of the transmitted RF power is transformed into heat within the patients’ tissue resulting from resistive losses, referred to as the specific energy absorption rate(SAR) (2). The EU standardisation has mandated that...
The progenitors of calcium-rich transients are not formed in situ
Creators: name: Lyman, Joe
name: Levan, Andrew
name: Church, Ross
name: Davies, Melvyn
name: Tanvir, Nial
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present deep VLT and HST observations of the nearest examples of calcium-rich 'gap' transients -- rapidly evolving transient events, with a luminosity intermediate between novae and supernovae. These sources are frequently found at large galactocentric offsets, and their progenitors remain mysterious. Our observations find no convincing underlying quiescent sources coincident with the locations of these transients, allowing us to rule out a number of potential progenitor systems. The presence of surviving massive-star binary companions (or other cluster members) are ruled out, providing an independent rejection of a massive star origin for these events. Dwarf satellite galaxies are disfavoured unless one invokes as yet unknown conditions that would be extremely favourable for their production in the lowest mass systems. Our limits also probe the majority of the globular cluster luminosity function, ruling out the presence of an underlying globular cluster population at high significance, and thus the possibility that they are created via dynamical interactions in dense globular cluster cores. Given the lack of underlying systems, previous progenitor suggestions have difficulty reproducing the remote locations of these transients, even when considering solely halo-borne progenitors. Our preferred scenario is that calcium-rich transients are high velocity, kicked systems, exploding at large distances from their natal site. Coupled with a long-lived progenitor system post-kick, this naturally explains the lack of association these transients have with their host stellar light, and the extreme host-offsets exhibited. Neutron star -- white dwarf mergers may be a promising progenitor system in this scenario.
description: Accepted for publication in MNRAS, 11 pages, 9 figures
title: Fast direct-access for patients suspected for lower extremity deep vein thrombosis in general practice
Creators: name: Meyer Balle, Annette
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Diagnostic procedure
subject: Cost-effectiveness
subject: Audit and standards
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Veins / Vena cava
subject: Management
subject: Embolism / Thrombosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Lower extremity deep vein thrombosis (DVT) can lead to potentially life-threatening complications such as pulmonary embolism or trigger development of post-thrombotic syndrome (1,2). Accordingly, fast, early diagnosis and treatment are essential....
Interpolated family of non group-like simple integral fusion rings of Lie type
Creators: name: Liu, Zhengwei
name: Palcoux, Sebastien
name: Ren, Yunxiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: Category Theory (math.CT)
subject: Group Theory (math.GR)
subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 46L37, 18M20 (Primary) 20C33, 20D06 (Secondary)

description: This paper is motivated by the quest of a non-group irreducible finite index depth 2 maximal subfactor. We compute the generic fusion rules of the Grothendieck ring of Rep(PSL(2,q)), q prime-power, by applying a Verlinde-like formula on the generic character table. We then prove that this family of fusion rings R_q interpolates to all integers q>=2, providing (when q is not prime-power) the first example of infinite family of non group-like simple integral fusion rings. Furthermore, they pass all the known criteria of (unitary) categorification. This provides infinitely many serious candidates for solving the famous open problem of whether there exists an integral fusion category which is not weakly group-theoretical. We prove that a complex categorification (if any) of an interpolated fusion ring R_q (with q non prime-power) cannot be braided, and so its Drinfeld center must be simple. In general, this paper proves that a non-pointed simple fusion category is non-braided if and only if its Drinfeld center is simple; and also that every simple integral fusion category is weakly group-theoretical if and only if every simple integral modular fusion category is pointed.
description: 29 pages. Minor updates. Accepted in International Journal of Mathematics
Optimal Estimation of a Classical Force with a Damped Oscillator in the non-Markovian Bath
Creators: name: Gao, Yang
name: Lee, Hwang
name: Jia, Yong Lei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We solve the optimal quantum limit of probing a classical force exactly by a damped oscillator initially prepared in the factorized squeezed state. The memory effects of the thermal bath on the oscillator evolution are investigated. We show that the optimal force sensitivity obtained by the quantum estimation theory approaches to zero for the non-Markovian bath, whereas approaches to a finite non-zero value for the Markovian bath as the energy of the damped oscillator goes to infinity.
description: 5 pages, 4 figures
Prospects for observing charginos and neutralinos at a 100 TeV proton-proton collider
Creators: name: Acharya, Bobby S.
name: Bozek, Krzysztof
name: Pongkitivanichkul, Chakrit
name: Sakurai, Kazuki
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the prospects for discovering charginos and neutralinos at a future $pp$ collider with $\sqrt{s} = 100$ TeV. We focus on models where squarks and sleptons are decoupled -- as motivated by the LHC data. Our initial study is based on models where Higgsinos form the main component of the LSP and $W$-inos compose the heavier chargino states ($M_2 > μ$), though it is straightforward to consider the reverse situation also. We show that in such scenarios $W$-inos decay into $W^\pm$, $Z$ and $h$ plus neutralinos almost universally. In the $W Z$ channel we compare signal and background in various kinematical distributions. We design simple but effective signal regions for the trilepton channel and evaluate discovery reach and exclusion limits. Assuming 3000 fb$^{-1}$ of integrated luminosity, $W$-inos could be discovered (excluded) up to 1.1 (1.8) TeV if the spectrum is not compressed.
description: 19 pages, 9 figures
Adaptive optics observations of the gravitationally lensed quasar SDSS J1405+0959
Creators: name: Rusu, Cristian E.
name: Oguri, Masamune
name: Minowa, Yosuke
name: Iye, Masanori
name: More, Anupreeta
name: Inada, Naohisa
name: Oya, Shin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the result of Subaru Telescope multi-band adaptive optics observations of the complex gravitationally lensed quasar SDSS J1405+0959, which is produced by two lensing galaxies. These observations reveal dramatically enhanced morphological detail, leading to the discovery of an additional object 0. 26'' from the secondary lensing galaxy, as well as three collinear clumps located in between the two lensing galaxies. The new object is likely to be the third quasar image, although the possibility that it is a galaxy cannot be entirely excluded. If confirmed via future observations, it would be the first three image lensed quasar produced by two galaxy lenses. In either case, we show based on gravitational lensing models and photometric redshift that the collinear clumps represent merging images of a portion of the quasar host galaxy, with a magnification factor of 15 - 20, depending on the model.
description: 12 pages, 8 figures, 7 tables. Submitted to MNRAS
title: DUNEuro—A software toolbox for forward modeling in bioelectromagnetism
Creators: name: Schrader, Sophie
name: Westhoff, Andreas
name: Piastra, Maria Carla
name: Miinalainen, Tuuli
name: Pursiainen, Sampsa
name: Vorwerk, Johannes
name: Brinck, Heinrich
name: Wolters, Carsten H.
name: Engwer, Christian
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2022
Subjects: subject: 610 Medicine and health

description: Accurate and efficient source analysis in electro- and magnetoencephalography using sophisticated realistic head geometries requires advanced numerical approaches. This paper presents DUNEuro, a free and open-source C++ software toolbox for the numerical computation of forward solutions in bioelectromagnetism. Building upon the DUNE framework, it provides implementations of modern fitted and unfitted finite element methods to efficiently solve the forward problems of electro- and magnetoencephalography. The user can choose between a variety of different source models that are implemented. The software’s aim is to provide interfaces that are extendable and easy-to-use. In order to enable a closer integration into existing analysis pipelines, interfaces to Python and MATLAB are provided. The practical use is demonstrated by a source analysis example of somatosensory evoked potentials using a realistic six-compartment head model. Detailed installation instructions and example scripts using spherical and realistic head models are appended.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
title: Abdominal Wall Endometriosis: MR Imaging Findings
Creators: name: Seker, Busra
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Pathology
subject: Diagnostic procedure
subject: MR
subject: Soft tissues / Skin
subject: Pelvis
subject: Musculoskeletal soft tissue

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Localization of endometrial tissue outside the uterine cavity is referred to as endometriosis. Although this condition most commonly involves pelvic organs, especially ovary and Sacro-uterine ligament, it may occur at many other sites including the...
A deep catalogue of classical Be stars in the direction of the Perseus Arm: spectral types and interstellar reddenings
Creators: name: Raddi, R.
name: Drew, J. E.
name: Steeghs, D.
name: Wright, N. J.
name: Drake, J. J.
name: Barentsen, G.
name: Fabregat, J.
name: Sale, S. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a catalogue of 247 photometrically and spectroscopically confirmed fainter classical Be stars (13 < r < 16) in the direction of the Perseus Arm of the Milky Way (-1 < b < +4, 120 < l < 140). The catalogue consists of 181 IPHAS-selected new classical Be stars, in addition to 66 objects that were studied by Raddi et al. (2013) more closely, and 3 stars identified as classical Be stars in earlier work. This study more than doubles the number known in the region. Photometry spanning 0.6 to 5 micron, spectral types, and interstellar reddenings are given for each object. The spectral types were determined from low-resolution spectra (lambda / Delta-lambda ~ 800-2000), to a precision of 1-3 subtypes. The interstellar reddenings are derived from the (r - i) colour, using a method that corrects for circumstellar disc emission. The colour excesses obtained range from E(B-V) = 0.3 up to 1.6 - a distribution that modestly extends the range reported in the literature for Perseus-Arm open clusters. For around half the sample, the reddenings obtained are compatible with measures of the total sightline Galactic extinction. Many of these are likely to lie well beyond the Perseus Arm.
description: 20 pages, 13 figures, 5 tables. Accepted for publication in the Monthly Notices of the Royal Astronomical Society
Wilhelm Lübke in Zürich
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 1891
Subjects: subject: 700 Künste und Unterhaltung
subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Lübke, Wilhelm
subject: Zürich

description: Sonderdruck aus: Neue Zürcher Zeitung, No. 203, 22. Juli 189, Beilage
Classification of macroscopic quantum effects
Creators: name: Farrow, Tristan
name: Vedral, Vlatko
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review canonical experiments on systems that have pushed the boundary between the quantum and classical worlds towards much larger scales, and discuss their unique features that enable quantum coherence to survive. Because the types of systems differ so widely, we use a case by case approach to identifying the different parameters and criteria that capture their behaviour in a quantum mechanical framework. We find it helpful to categorise systems into three broad classes defined by mass, spatio-temporal coherence, and number of particles. The classes are not mutually exclusive and in fact the properties of some systems fit into several classes. We discuss experiments by turn, starting with interference of massive objects like macromolecules and micro-mechanical resonators, followed by self-interference of single particles in complex molecules, before examining the striking advances made with superconducting qubits. Finally, we propose a theoretical basis for quantifying the macroscopic features of a system to lay the ground for a more systematic comparison of the quantum properties in disparate systems.
description: 6 pages
title: Morphological brain images acquired with a tilting MRI scanner: feasibility and quality evaluations
Creators: name: Forzoni, Leonardo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Anatomy
subject: Neuroradiology brain
subject: MR
subject: Segmentation
subject: Education and training

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Conventional Magnetic Resonance Imaging (MRI) scanners allow patients to be imaged only in the supine position. Conversely, tilting MRI scanners allow to examine a subject also in the sitting position, for Weight-Bearing (WB) MRI...
HAZMAT I: The Evolution of Far-UV and Near-UV Emission from Early M Stars
Creators: name: Shkolnik, Evgenya L.
name: Barman, Travis S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The spectral energy distribution, variability and evolution of the high-energy radiation from an M dwarf planet host is crucial in understanding the planet's atmospheric evolution and habitability and in interpreting the planet's spectrum. The star's extreme-UV (EUV), far-UV (FUV) and near-UV (NUV) emission can chemically modify, ionize, and erode the atmosphere over time. This makes determining the lifetime exposure of such planets to stellar UV radiation critical for both the evolution of a planet's atmosphere and our potential to characterize it. Using the early M star members of nearby young moving groups (YMGs), which sample critical ages in planet formation and evolution, we measure the GALEX NUV and FUV flux as a function of age. The median UV flux remains at a "saturated" level for a few hundred million years, analogous to that observed for X-ray emission. By the age of the Hyades Cluster (650 Myr), we measure a drop in UV flux by a factor of 2-3 followed by a steep drop from old (several Gyrs) field stars. This decline in activity beyond 300 Myr follows roughly t^{-1}. Despite this clear evolution, there remains a wide range of 1-2 orders of magnitude in observed emission levels at every age. These UV data supply the much-needed constraints to M dwarf upper-atmosphere models, which will provide empirically-motivated EUV predictions and more accurate age-dependent UV spectra as inputs to planetary photochemical models.
description: Accepted to the Astronomical Journal
A Benchmark of PDF Information Extraction Tools using a Multi-Task and Multi-Domain Evaluation Framework for Academic Documents
Creators: name: Meuschke, Norman
name: Jagdale, Apurva
name: Spinde, Timo
name: Mitrović, Jelena
name: Gipp, Bela
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Extracting information from academic PDF documents is crucial for numerous indexing, retrieval, and analysis use cases. Choosing the best tool to extract specific content elements is difficult because many, technically diverse tools are available, but recent performance benchmarks are rare. Moreover, such benchmarks typically cover only a few content elements like header metadata or bibliographic references and use smaller datasets from specific academic disciplines. We provide a large and diverse evaluation framework that supports more extraction tasks than most related datasets. Our framework builds upon DocBank, a multi-domain dataset of 1.5M annotated content elements extracted from 500K pages of research papers on arXiv. Using the new framework, we benchmark ten freely available tools in extracting document metadata, bibliographic references, tables, and other content elements from academic PDF documents. GROBID achieves the best metadata and reference extraction results, followed by CERMINE and Science Parse. For table extraction, Adobe Extract outperforms other tools, even though the performance is much lower than for other content elements. All tools struggle to extract lists, footers, and equations. We conclude that more research on improving and combining tools is necessary to achieve satisfactory extraction quality for most content elements. Evaluation datasets and frameworks like the one we present support this line of research. We make our data and code publicly available to contribute toward this goal.
description: iConference 2023
Революция личности. Часть 1. Социальная революция как синтез элит
Creators: name: Давыдов Дмитрий Александрович
Publisher: name: Свободная мысль
Year: 2020
Subjects: Личность
персоналиат
посткапитализм
социальная революция
марксизм
классовая борьба
политические элиты
способ производства
общественная формация

description: Посткапиталистическая стадия развития общества рассмотрена как новая антагонистическая общественная формация, в рамках которой «обладание личностью» является наиболее желаемым состоянием и весомым преимуществом. Становление посткапитализма представлено как процесс возвышения персоналиата — растущей прослойки популярных творческих личностей. Критикуется тезис о классовой борьбе как необходимом элементе процесса смены общественных формаций. Утверждается, что тезисы классиков марксизма о революции рабочего класса опирались исключительно на ситуативные прогнозы и экстраполяции. Обоснована концепция синтеза элит как универсального механизма смены общественных формаций. С опорой на результаты исторических исследований показана работоспособность этого механизма на примере становления капитализма. Утверждается, что социальная революция — это медленный процесс, при котором новые формы власти и престижа постепенно вытесняют старые.
title: Breast cancer assessment with hand-held ultrasound based Speed of Sound: preliminary results
Creators: name: Sanabria, Sergio
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Tissue characterisation
subject: Diagnostic procedure
subject: Ultrasound
subject: Ultrasound physics
subject: Soft tissues / Skin
subject: Breast

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Breast cancer is the most common cancer in women. Several different imaging techniques are available to assess tumorous breast lesions [1-4]. To date, the mammography has been the reference standard to assess breast lesions [1]. However, such...
Coarse-graining in time with the Functional Renormalisation Group: Relaxation in Brownian Motion
Creators: name: Wilkins, Ashley
name: Rigopoulos, Gerasimos
name: Masoero, Enrico
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We apply the functional Renormalisation Group (fRG) to study relaxation in a stochastic process governed by an overdamped Langevin equation with one degree of freedom, exploiting the connection with supersymmetric quantum mechanics in imaginary time. After reviewing the functional integral formulation of the system and its underlying symmetries, including the resulting Ward-Takahashi identities for arbitrary initial conditions, we compute the effective action $Γ$ from the fRG, approximated in terms of the leading and subleading terms in the gradient expansion: the Local Potential Approximation and Wavefunction Renormalisation respectively. This is achieved by coarse-graining the thermal fluctuations in time resulting in e.g. an effective potential incorporating fluctuations at all timescales. We then use the resulting effective equations of motion to describe the decay of the covariance, and the relaxation of the average position and variance towards their equilibrium values at different temperatures. We use as examples a simple polynomial potential, an unequal Lennard-Jones type potential and a more complex potential with multiple trapping wells and barriers. We find that these are all handled well, with the accuracy of the approximations improving as the relaxation's spectral representation shifts to lower eigenvalues, in line with expectations about the validity of the gradient expansion. The spectral representation's range also correlates with temperature, leading to the conclusion that the gradient expansion works better for higher temperatures than lower ones. This work demonstrates the ability of the fRG to expedite the computation of statistical objects in otherwise long-timescale simulations, acting as a first step to more complicated systems.
description: 26 pages, 16 figures, 1 tables, 3 Appendices. Minor changes from version 2 include black and white friendly plots. Matches version accepted for publication in PRE. arXiv admin note: text overlap with arXiv:2008.00472
Кризис неолиберального миропорядка сквозь призму ленинской теории империализма. К 150-летию со дня рождения В. И. Ленина
Creators: name: Сергеев Григорий Сергеевич
Publisher: name: Свободная мысль
Year: 2020
Subjects: Ленинская теория империализма
глобальное обобществление
глобальный финансовый капитал
неолиберальная глобализация
офшоризация
финансиализация
деглобализация

description: Кризисная трансформация неолиберального миропорядка рассмотрена с позиции ленинской теории империализма. Система монополистического господства приобрела глобальный характер в результате развертывания глобализации, ключевыми признаками которой стали процессы офшоризации как формы глобального обобществления производства и финансиализации как результата усиления господства финансового капитала. Обострение противоречия между глобальным обобществлением производства и его подчинением глобальному финансовому капиталу приводит к деглобализации, которая представляет собой проявление борьбы за передел геоэкономического пространства между транснациональными монополиями.
Suppression of contact-induced spin dephasing in graphene/MgO/Co spin-valve devices by successive oxygen treatments
Creators: name: Volmer, F.
name: Drögeler, M.
name: Maynicke, E.
name: Driesch, N. von den
name: Boschen, M. L.
name: Güntherodt, G.
name: Stampfer, C.
name: Beschoten, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: By successive oxygen treatments of graphene non-local spin-valve devices we achieve a gradual increase of the contact resistance area products ($R_cA$) of Co/MgO spin injection and detection electrodes and a transition from linear to non-linear characteristics in the respective differential dV-dI-curves. With this manipulation of the contacts both spin lifetime and amplitude of the spin signal can significantly be increased by a factor of seven in the same device. This demonstrates that contact-induced spin dephasing is the bottleneck for spin transport in graphene devices with small $R_cA$ values. With increasing $R_cA$ values, we furthermore observe the appearance of a second charge neutrality point (CNP) in gate dependent resistance measurements. Simultaneously, we observe a decrease of the gate voltage separation between the two CNPs. The strong enhancement of the spin transport properties as well as the changes in charge transport are explained by a gradual suppression of a Co/graphene interaction by improving the oxide barrier during oxygen treatment.
description: 12 pages, 10 figures
title: Stenosis assessment with corrected attenuation difference across the stenosis in lower extremity using CT arteriography: could be a measurement index for determination of interventional treatment
Creators: name: Kang, Seongsu
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: CT-Quantitative
subject: CT-Angiography
subject: Vascular
subject: Extremities
subject: Cardiovascular system
subject: Arterial access
subject: Cost-effectiveness
subject: Arteriosclerosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Peripheral arterial disease (PAD) of the lower extremity is a common syndrome that affects a large proportion of most adult populations worldwide. Multi-slice computed tomography angiography (CTA) is a deﬁnitive method for anatomic evaluation of...
Relaxing Isocurvature Bounds on String Axion Dark Matter
Creators: name: Kawasaki, Masahiro
name: Kitajima, Naoya
name: Takahashi, Fuminobu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: If inflation scale is high, light scalars acquire large quantum fluctuations during inflation.If sufficiently long-lived, they will give rise to CDM isocurvature perturbations, which are highly constrained by the Planck data. Focusing on string axions as such light scalars, we show that thermal inflation can provide a sufficiently large entropy production to dilute the CDM isocurvature perturbations. Importantly, efficient dilution is possible for the string axions, because effectively no secondary coherent oscillations are induced at the end of thermal inflation, in contrast to the moduli fields. We also study the viability of the axion dark matter with mass of about 7 keV as the origin of the 3.5 keV X-ray line excess, in the presence of large entropy production.
description: 18 pages, 2 figures
Знания и информация как синергия платформенного подхода цифровизации глобального развития
Creators: name: Чистяков Максим Сергеевич
name: Лачинина Татьяна Александровна
name: Чирков Максим Андреевич
Publisher: name: Свободная мысль
Year: 2020
Subjects: Знания
информация
цифровая («платформенная») экономика
постиндустриальное развитие
цифровизация
конвергентные технологии
«Индустрия 4.0»

description: Цивилизация вступила в эпоху постиндустриальной эволюции, характеризующейся новыми форматом производственной деятельности и ментальностью мышления. Знания и информация рассмотрены с позиции стратегического актива, влияющего на формирование постиндустриального облика цифровой экономики прогнозируемой платформы «Индустрия 4.0».
title: Sensitivity Assessment of a Microwave Apparatus for Breast Cancer Detection
Creators: name: Tiberi, Gianluigi
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Instrumentation
subject: Computer Applications-Detection, diagnosis
subject: Experimental
subject: Breast

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Microwave imaging has received increasing attention in the last decades, in particular for its breast cancer detection applications, encouraged by considerable difference between dielectric properties of malignant and normal tissues at microwave...
Unramified Cohomology of Quadrics in Characteristic Two
Creators: name: Hu, Yong
name: Sun, Peng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 11E04, 14F20, 19E15

description: Let $F$ be a field of characteristic 2 and let $X$ be a smooth projective quadric of dimension $\ge 1$ over $F$. We study the unramified cohomology groups with 2-primary torsion coefficients of $X$ in degrees 2 and 3. We determine completely the kernel and the cokernel of the natural map from the cohomology of $F$ to the unramified cohomology of $X$. This extends the results in characteristic different from 2 obtained by Kahn, Rost and Sujatha in the nineteen-nineties.
description: Final verstion, to appear in Manuscripta Mathematica
title: A Detailed Review on MR Defecography.
Creators: name: Abubacker Sulaiman, Farook
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Outcomes
subject: Defecography
subject: MR
subject: Colon

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Functional disorders of the pelvic floor such as pelvic organ prolapse and defecatory dysfunction represent a common health problem, especially in women. Dynamic imaging (imaging obtained at rest, during squeezing, straining, and defecation) has a...
The Nature of Transition Blazars
Creators: name: Ruan, J. J.
name: Anderson, S. F.
name: Plotkin, R. M.
name: Brandt, W. N.
name: Burnett, T. H.
name: Myers, A. D.
name: Schneider, D. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Blazars are classically divided into the BL Lac (BLL) and Flat-Spectrum Radio Quasar (FSRQ) subclasses, corresponding to radiatively inefficient and efficient accretion regimes, respectively, largely based on the equivalent width (EW) of their optical broad emission lines (BEL). However, EW-based classification criteria are not physically motivated, and a few blazars have previously 'transitioned' from one subclass to the other. We present the first systematic search for these transition blazars in a sample of 602 unique pairs of repeat spectra of 354 blazars in SDSS, finding six clear cases. These transition blazars have bolometric Eddington ratios of ~0.3 and low-frequency synchrotron peaks, and are thus FSRQ-like. We show that the strong EW variability (up to an unprecedented factor of >60) is due to swamping of the BELs from variability in jet continuum emission, which is stronger in amplitude and shorter in timescale than typical blazars. Although these transition blazars appear to switch between FSRQ and BLL according to the phenomenologically-based EW scheme, we show that they are most likely rare cases of FSRQs with radiatively efficient accretion flows and especially strongly-beamed jets. These results have implications for the decrease of the apparent BLL population at high-redshifts, and may add credence to claims of a negative BLL redshift evolution.
description: 14 pages, 11 Figures, ApJ accepted
Анализ влияния коронавирусной инфекции на наркопотребление в РФ
Creators: name: Шульгина Елена Викторовна
Publisher: name: Свободная мысль
Year: 2020
Subjects: Коронавирусная инфекция
наркопотребление
наркотические вещества
меры
последствия

description: Коронавирусная инфекция оказала влияние на все уровни общественной жизни. Целью данной работы является анализ воздействия пандемии коронавируса на сферу наркопотребления в Российской Федерации. Представление наркоситуации, сложившейся в современных условиях, должно послужить основой для выработки актуальной системы эффективных мер противодействия потреблению наркотических средств
title: ITMIG classification of mediastinal anatomy: exposure through augmented reality
Creators: name: Hasson, Daniel
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Anatomy
subject: Mediastinum
subject: CT
subject: Computer Applications-Virtual imaging
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To make known the ITMIG classification in the radiological community To reduce the inaccuracy of the location of pathologies in the mediastinum To show through CT images and interactive illustrations with augmented reality, the new classification of...
Analytic genericity of diffusing orbits in a priori unstable Hamiltonian systems
Creators: name: Chen, Qinbo
name: de la Llave, Rafael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37J40, 37J25, 70H08, 70H33

description: The genericity of Arnold diffusion in the analytic category is an open problem. In this paper, we study this problem in the following a priori unstable Hamiltonian system with a time-periodic perturbation \[\mathcal{H}_\varepsilon(p,q,I,φ,t)=h(I)+\sum_{i=1}^n\pm \left(\frac{1}{2}p_i^2+V_i(q_i)\right)+\varepsilon H_1(p,q,I,φ, t), \] where $(p,q)\in \mathbb{R}^n\times\mathbb{T}^n$, $(I,φ)\in\mathbb{R}^d\times\mathbb{T}^d$ with $n, d\geq 1$, $V_i$ are Morse potentials, and $\varepsilon$ is a small non-zero parameter. The unperturbed Hamiltonian is not necessarily convex, and the induced inner dynamics does not need to satisfy a twist condition. Using geometric methods we prove that Arnold diffusion occurs for generic analytic perturbations $H_1$. Indeed, the set of admissible $H_1$ is $C^ω$ dense and $C^3$ open (a fortiori, $C^ω$ open). Our perturbative technique for the genericity is valid in the $C^k$ topology for all $k\in [3,\infty)\cup\{\infty, ω\}$.