cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pressure evolution of electron dynamics in the superconducting kagome metal CsV$_3$Sb$_5$
Creators: name: Wenzel, Maxim
name: Tsirlin, Alexander A.
name: Capitani, Francesco
name: Chan, Yuk T.
name: Ortiz, Brenden R.
name: Wilson, Stephen D.
name: Dressel, Martin
name: Uykur, Ece
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The coexistence of the charge-density wave (CDW) and superconducting phases and their tunability under external pressure remains one of the key points in understanding the electronic structure of $A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs) kagome metals. Here, we employ synchrotron-based infrared spectroscopy assisted by density-functional calculations to study the pressure evolution of the electronic structure at room temperature up to 17 GPa experimentally. The optical spectrum of CsV$_3$Sb$_5$ is characterized by the presence of localized carriers seen as a broad peak at finite frequencies in addition to the conventional metallic Drude response. The pressure dependence of this low-energy peak reflects the re-entrant behavior of superconductivity and may be interpreted in terms of electron-phonon coupling, varying with the growth and shrinkage of the Fermi surface. Moreover, drastic modifications in the low-energy interband absorptions are observed upon the suppression of CDW. These changes are related to the upward shift of the Sb2 $p_x+p_y$ band that eliminates part of the Fermi surface around the $M$-point, whereas band saddle points do not move significantly. These observations shed new light on the mixed electronic and lattice origin of the CDW in CsV$_3$Sb$_5$.
Uncovering and experimental realization of multimodal 3D topological metamaterials for low-frequency and multiband elastic wave control
Creators: name: Dorin, Patrick
name: Khan, Mustafa
name: Wang, K. W.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Topological metamaterials unlock confined and robust elastic wave control in mechanical structures. Recent breakthroughs have precipitated the development of 3D topological mechanical metamaterials, which extend beyond the conventional 1D and 2D metamaterials to facilitate extraordinary wave manipulation along 2D planar and layer-dependent elastic waveguides. While promising, significant research gaps exist that impede the practical implementation of 3D topological metamaterials. The 3D topological metamaterials studied thus far are constrained to function in single frequency bandwidths that are typically in a high-frequency regime, and a comprehensive experimental investigation remains elusive. In this paper, we address these research gaps and advance the state of the art through the synthesis and experimental realization of a 3D topological metamaterial that exploits multimodal local resonance to enable low-frequency elastic wave control over multiple distinct frequency bands. The proposed metamaterial is geometrically configured to create multimodal local resonators whose frequency characteristics govern the emergence of four unique low-frequency topological states. Numerical simulations uncover how these topological states can be employed to achieve polarization-, frequency-, and layer-dependent wave manipulation in 3D structures. An experimental study results in the attainment of complete wave fields that unambiguously illustrate 2D topological waveguides and multi-polarized wave control in a physical testbed. The outcomes from this work open the door for future research with 3D topological mechanical metamaterials and reveal the applicability of the proposed metamaterial for various wave control applications.
description: 18 pages, 6 figures
Energy transfer and dissipation in forced isotropic turbulence
Creators: name: McComb, W. D.
name: Berera, A.
name: Yoffe, S. R.
name: Linkmann, M. F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A model for the Reynolds number dependence of the dimensionless dissipation rate $C_{\varepsilon}$ was derived from the dimensionless Kármán-Howarth equation, resulting in $C_{\varepsilon}=C_{\varepsilon, \infty} + C/R_L + O(1/R_L^2)$, where $R_L$ is the integral scale Reynolds number. The coefficients $C$ and $C_{\varepsilon,\infty}$ arise from asymptotic expansions of the dimensionless second- and third-order structure functions. This theoretical work was supplemented by direct numerical simulations (DNSs) of forced isotropic turbulence for integral scale Reynolds numbers up to $R_L=5875$ ($R_λ=435$), which were used to establish that the decay of dimensionless dissipation with increasing Reynolds number took the form of a power law $R_L^n$ with exponent value $n = -1.000\pm 0.009$, and that this decay of $C_{\varepsilon}$ was actually due to the increase in the Taylor surrogate $U^3/L$. The model equation was fitted to data from the DNS which resulted in the value $C=18.9\pm 1.3$ and in an asymptotic value for $C_\varepsilon$ in the infinite Reynolds number limit of $C_{\varepsilon,\infty} = 0.468 \pm 0.006$.
description: 26 pages including references and 6 figures. arXiv admin note: text overlap with arXiv:1307.4574
La citación en los textos jurídicos
Creators: name: Criales Cárdenas Diana Patricia
Publisher: name: Universidad del Rosario
Year: 2022

description: Recurso audiovisual del mooc Corrección de textos jurídicos  en el cual se explican las diversas versiones, reglas y normas para hacer citaciones, y no incurrir en temas de plagio; esto cobra relevancia en el quehacer de un abogado puesto que va ligado al desarrollo de su ejercicio profesional donde se recurre mucho a estructurar documentos en los que se referencian artículos, leyes, o fragmentos de otros documentos.
Intrinsic rotation in tokamaks: theory
Creators: name: Parra, Felix I.
name: Barnes, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Self-consistent equations for intrinsic rotation in tokamaks with small poloidal magnetic field $B_p$ compared to the total magnetic field $B$ are derived. The model gives the momentum redistribution due to turbulence, collisional transport and energy injection. Intrinsic rotation is determined by the balance between the momentum redistribution and the turbulent diffusion and convection. Two different turbulence regimes are considered: turbulence with characteristic perpendicular lengths of the order of the ion gyroradius, $ρ_i$, and turbulence with characteristic lengths of the order of the poloidal gyroradius, $(B/B_p) ρ_i$. Intrinsic rotation driven by gyroradius scale turbulence is mainly due to the effect of neoclassical corrections and of finite orbit widths on turbulent momentum transport, whereas for the intrinsic rotation driven by poloidal gyroradius scale turbulence, the slow variation of turbulence characteristics in the radial and poloidal directions and the turbulent particle acceleration can be become as important as the neoclassical and finite orbit width effects. The magnetic drift is shown to be indispensable for the intrinsic rotation driven by the slow variation of turbulence characteristics and the turbulent particle acceleration. The equations are written in a form conducive to implementation in a flux tube code, and the effect of the radial variation of the turbulence is included in a novel way that does not require a global gyrokinetic formalism.
description: 88 pages, 4 figures
A Study on Emerging Trends in Fintech Models Used in Banking Sector with Special Reference to Coimbatore City
Creators: name: M.Bhoomika, S.Srinithi, R.Deepak, Dr.D.Samundeeswari
Publisher: name: Zenodo
Year: 2025

description: The rapid rise of fintech has changed the business landscape in banking asking more innovative solutionspublic source fintech has challenge that can be turned into an opportunity as it provides more flexibility, betterfunctionality in some areas, and aggregation of services. These recent tendencies require the banks to increaseinvestment in fintech, rethink service distribution channels, especially the business-to-consumer models, increase further standardization of innovative this paper provides an extensive analysis of recent trends in fintech and b anking, examining experience of leading european, as well as surveys conducted amond members of the financial innovation and technology market, assessed the existing practies applied in the field of fintech, identified the main risks related to development of fintech and financial innovations the banks are exposed to on the micro-and macrolevel. The paper provides recommendations for regulators and bank ensure reduction of risks associated with development of fintech. analysis of fintech market have studied competition, including from nonfinancial instutions.
Topological bands with Chern number C=2 by dipolar exchange interactions
Creators: name: Peter, David
name: Yao, Norman Y.
name: Lang, Nicolai
name: Huber, Sebastian D.
name: Lukin, Mikhail D.
name: Büchler, Hans Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We demonstrate the realization of topological band structures by exploiting the intrinsic spin-orbit coupling of dipolar interactions in combination with broken time-reversal symmetry. The system is based on polar molecules trapped in a deep optical lattice, where the dynamics of rotational excitations follows a hopping Hamiltonian which is determined by the dipolar exchange interactions. We find topological bands with Chern number $C=2$ on the square lattice, while a very rich structure of different topological bands appears on the honeycomb lattice. We show that the system is robust against missing molecules. For certain parameters we obtain flat bands, providing a promising candidate for the realization of hard-core bosonic fractional Chern insulators.
description: 7 pages, 5 figures
Pemberdayaan Masyarakat melalui Badan Usaha Milik Desa (BUMDes) untuk Penyediaan Air Minum Desa (PAMDes) bagi Masyarakat di Desa Pangalengan, Kabupaten Bandung
Creators: name: Susanto, Arif
name: Irawan, Dasapta Erwin
name: Nugroho, Joko
name: Faizin, Lalu
name: Hartono, Barry Majeed
name: Gilang
name: Zilmi
Publisher: name: Zenodo
Year: 2020
Subjects: PPMUPT
Ristekdikti
Ristekbrin

description: Pemberdayaan Masyarakat melalui Badan Usaha Milik Desa (BUMDes) untuk Penyediaan Air Minum Desa (PAMDes) bagi Masyarakat di Desa Pangalengan, Kabupaten Bandung Lokasi Kegiatan : Desa Pangalengan, Kecamatan Pangalengan, Kabupaten Bandung  Ketua : Arif Susanto Anggota : Dasapta Erwin Irawan, Joko Nugroho Mahasiswa : Lalu R. Faizin, Barry M. H., Gilang E. L., Zilmi N. Mitra Sasaran : Pemerintah Desa Pangalengan Kelompok Masyarakat : BUMDes Bersatu, Pengurus RW 14 Tahun Pelaksanaan ke-1 (dari rencana 3 tahun) Institut Teknologi Bandung  Website terkait: https://kumparan.com/barry-majeed/geologi-itb-dan-usaha-penuntasan-masalah-air-bersih-di-desa-pangalengan-1uYyS8jBmDF http://www.pangalengan.desa.id/first/artikel/2018/12/6/pengabdian-masyarakat-oleh-tim-geologi-itb-guna-memenuhi-kebutuhan-air-bersih-di-desa-pangalengan https://fitb.itb.ac.id/2020/11/geologi-itb-bangun-pamdes-untuk-menjawab-masalah-air-bersih-di-desa-pangalengan/ https://www.lppm.itb.ac.id/berita-pm-air-bersih-dan-geologi-kegiatan-pengabdian-masyarakat-ristekbrin-2020/ Video Youtube terkait: https://www.youtube.com/watch?v=oFWirXd5GgQ, https://www.youtube.com/watch?v=-AvB_mbKfyY, https://www.youtube.com/watch?v=3ITE43_VxDo&t=7s Makalah terkait: IJODS: https://ijods.org/index.php/ds/article/view/18 ESSOAR: https://www.essoar.org/doi/10.1002/essoar.10503317.2 Pemberi dana: Kementerian Ristekbrin Republik Indonesia melalui Hibah Pengabdian Pada Masyarakat Unggulan Perguruan Tinggi (PPMUPT)
ALP dark matter with non-periodic potentials: parametric resonance, halo formation and gravitational signatures
Creators: name: Chatrchyan, Aleksandr
name: Eröncel, Cem
name: Koschnitzke, Matthias
name: Servant, Géraldine
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Axion-like particles (ALPs) are leading candidates to explain the dark matter in the universe. Their production via the misalignment mechanism has been extensively studied for cosine potentials characteristic of pseudo-Nambu-Goldstone bosons. In this work we investigate ALPs with non-periodic potentials, which allow for large misalignment of the field from the minimum. As a result, the ALP can match the relic density of dark matter in a large part of the parameter space. Such potentials give rise to self-interactions which can trigger an exponential growth of fluctuations in the ALP field via parametric resonance, leading to the fragmentation of the field. We study these effects with both Floquet analysis and lattice simulations. Using the Press-Schechter formalism, we predict the halo mass function and halo spectrum arising from ALP dark matter. These halos can be dense enough to produce observable gravitational effects such as astrometric lensing, diffraction of gravitational wave signals from black hole mergers, photometric microlensing of highly magnified stars, perturbations of stars in the galactic disk or stellar streams. These effects would provide a probe of dark matter even if it does not couple to the Standard Model. They would not be observable for halos predicted for standard cold dark matter and for ALP dark matter in the standard misalignment mechanism. We determine the relevant regions of parameter space in the (ALP mass, decay constant)-plane and compare predictions in different axion fragmentation models.
description: 50 pages and 22 figures in the main text, and 15 pages and 2 figures in appendices, v2: As published in JCAP
Organización de las oraciones
Creators: name: Criales Cárdenas Diana Patricia
Publisher: name: Universidad del Rosario
Year: 2022

description: Recurso audiovisual del mooc Corrección de textos jurídicos en el que se explica el cómo, el para qué y el por qué en la construcción eficaz de las oraciones y los elementos a tener en cuenta para su adecuada estructuración.
Accurate electron-recoil ionization factors for dark matter direct detection in xenon, krypton and argon
Creators: name: Caddell, A. R.
name: Flambaum, V. V.
name: Roberts, B. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: While most scintillation-based dark matter experiments search for Weakly Interacting Massive Particles (WIMPs), a sub-GeV WIMP-like particle may also be detectable in these experiments. While dark matter of this type and scale would not leave appreciable nuclear recoil signals, it may instead induce ionization of atomic electrons. Accurate modelling of the atomic wavefunctions is key to investigating this possibility, with incorrect treatment leading to a large suppression in the atomic excitation factors. We have calculated these atomic factors for argon, krypton and xenon and present the tabulated results for use with a range of dark matter models. This is made possible by the separability of the atomic and dark matter form factor, allowing the atomic factors to be calculated for general couplings; we include tables for vector, scalar, pseudovector, and pseudoscalar electron couplings. Additionally, we calculate electron impact total ionization cross sections for xenon using the tabulated results as a test of accuracy. Lastly, we provide an example calculation of the event rate for dark matter scattering on electrons in XENON1T and show that these calculations depend heavily on how the low-energy response of the detector is modelled.
Large-scale fluctuations of the largest Lyapunov exponent in diffusive systems
Creators: name: Laffargue, Tanguy
name: Sollich, Peter
name: Tailleur, Julien
name: van Wijland, Frédéric
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present a general formalism for computing the largest Lyapunov exponent and its fluctuations in spatially extended systems described by diffusive fluctuating hydrodynamics, thus extending the concepts of dynamical system theory to a broad range of non-equilibrium systems. Our analytical results compare favourably with simulations of a lattice model of heat conduction. We further show how the computation of the Lyapunov exponent for the Symmetric Simple Exclusion Process relates to damage spreading and to a two-species pair annihilation process, for which our formalism yields new finite size results.
Galaxy UV-luminosity function and reionization constraints on axion dark matter
Creators: name: Bozek, Brandon
name: Marsh, David J. E.
name: Silk, Joseph
name: Wyse, Rosemary F. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If the dark matter (DM) were composed of axions, then structure formation in the Universe would be suppressed below the axion Jeans scale. Using an analytic model for the halo mass function of a mixed DM model with axions and cold dark matter, combined with the abundance-matching technique, we construct the UV-luminosity function. Axions suppress high-$z$ galaxy formation and the UV-luminosity function is truncated at a faintest limiting magnitude. From the UV-luminosity function, we predict the reionization history of the universe and find that axion DM causes reionization to occur at lower redshift. We search for evidence of axions using the Hubble Ultra Deep Field UV-luminosity function in the redshift range $z=6$-$10$, and the optical depth to reionization, $τ$, as measured from cosmic microwave background polarization. All probes we consider consistently exclude $m_a\lesssim 10^{-23}\text{ eV}$ from contributing more than half of the DM, with our strongest constraint ruling this model out at more than $8σ$ significance. In conservative models of reionization a dominant component of DM with $m_a=10^{-22}\text{ eV}$ is in $3σ$ tension with the measured value of $τ$, putting pressure on an axion solution to the cusp-core problem. Tension is reduced to $2σ$ for the axion contributing only half of the DM. A future measurement of the UV-luminosity function in the range $z=10$-$13$ by JWST would provide further evidence for or against $m_a=10^{-22}\text{ eV}$. Probing still higher masses of $m_a=10^{-21}\text{ eV}$ will be possible using future measurements of the kinetic Sunyaev-Zel'dovich effect by Advanced ACTPol to constrain the time and duration of reionization.
description: 17 pages, 8 figures, 2 tables. v2: Minor Changes. References added. Published in MNRAS
Triple Higgs Coupling as a Probe of the Twin-Peak Scenario
Creators: name: Ahriche, Amine
name: Arhrib, Abdesslam
name: Nasri, Salah
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: In this letter, we investigate the case of a twin peak around the observed 125 GeV scalar resonance, using di-Higgs production processes at both LHC and $e^{+}e^{-}$ Linear Colliders. We have shown that both at LHC and Linear Collider the triple Higgs couplings play an important role to identify this scenario; and also that this scenario can be distinguishable from any Standard Model extension by extra massive particles which might modify the triple Higgs coupling. We also introduce a criterion that can be used to ruled out the twin peak scenario.
description: 6 pages, 4 figures, typos corrected, some results are modified & version published in PLB
Effects of sub-word segmentation on performance of transformer language models
Creators: name: Hou, Jue
name: Katinskaia, Anisia
name: Vu, Anh-Duc
name: Yangarber, Roman
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Language modeling is a fundamental task in natural language processing, which has been thoroughly explored with various architectures and hyperparameters. However, few studies focus on the effect of sub-word segmentation on the performance of language models (LMs). In this paper, we compare GPT and BERT models trained with the statistical segmentation algorithm BPE vs. two unsupervised algorithms for morphological segmentation -- Morfessor and StateMorph. We train the models for several languages -- including ones with very rich morphology -- and compare their performance with different segmentation algorithms, vocabulary sizes, and model sizes. The results show that training with morphological segmentation allows the LMs to: 1. achieve lower perplexity, 2. converge more efficiently in terms of training time, and 3. achieve equivalent or better evaluation scores on downstream tasks. Lastly, we show 4. that LMs of smaller size using morphological segmentation can perform comparably to models of larger size trained with BPE -- both in terms of (1) perplexity and (3) scores on downstream tasks. Points (2) and (4) impact on sustainability of LMs, since they reduce the model cost: size and computation time. While (2) reduces cost only in the training phase, (4) does so also in the inference phase.
description: This submission published in EMNLP 2023
6 Aspectos relevantos sobre la somática y la consciencia corporal
Creators: name: Montaña, Luis Eduardo
Publisher: name: Universidad del Rosario
Year: 2022

description: Recurso que hace parte del mooc Comunicación oral en entornos jurídicos en el que se relacionan los seis aspectos más relevantes sobre la somática que ayuda a las personas a mejorar su bienestar desde el movimiento y diversas prácticas de sensibilización.
6 - TRIBOLOGICAL PROPERTIES OF EPOXY REINFORCED BY RANDOMLY ORIENTED CHOPPED CARBON FIBERS.pdf
Creators: name: Ramadan, Mohammed
Publisher: name: figshare
Year: 2020
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: 91309 Tribology

description: This article discusses the influence of filling epoxy by chopped carbon fiber and various kinds of oil (olive, corn, sunflower, glycerin and paraffin) on the friction and wear. Different concentrations of each oil (2, 5, 10 wt. %) were added to epoxy resin in addition to 2 wt. % chopped carbon fiber. Experiments were conducted using pin on disc test rig. The tests were carried out at constant speed (0.93 m/sec), constant load (6.5 N) and constant running time (300 sec) at room temperature. The worn surfaces of tested specimens were observed using scanning electron microscope. The results revealed that reinforcing epoxy by chopped carbon fiber has significantly affected the friction behavior and wear resistance. Moreover, addition of green oils (olive, corn, sunflower and glycerin) and mineral oils (paraffin) to epoxy/carbon fiber composites enhanced the friction and wear properties.
Private Product Computation using Quantum Entanglement
Creators: name: Christensen, René Bødker
name: Popovski, Petar
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: 81P40, 68P27, 94A60

description: In this work, we show that a pair of entangled qubits can be used to compute a product privately. More precisely, two participants with a private input from a finite field can perform local operations on a shared, Bell-like quantum state, and when these qubits are later sent to a third participant, the third participant can determine the product of the inputs, but without learning more about the individual inputs. We give a concrete way to realize this product computation for arbitrary finite fields of prime order.
description: 9 pages. Identical to published journal paper
'Quantum Cheshire Cat' as Simple Quantum Interference
Creators: name: Corrêa, Raul
name: Santos, Marcelo França
name: Monken, C. H.
name: Saldanha, Pablo L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent work, Aharonov et al. suggested that a photon could be separated from its polarization in an experiment involving pre- and post-selection [New J. Phys 15, 113015 (2013)]. They named the effect 'quantum Cheshire Cat', in a reference to the cat that is separated from its grin in the novel Alice's Adventures in Wonderland. Following these ideas, Denkmayr et al. performed a neutron interferometric experiment and interpreted the results suggesting that neutrons were separated from their spin [Nat. Commun. 5, 4492 (2014)]. Here we show that these results can be interpreted as simple quantum interference, with no separation between the quantum particle and its internal degree of freedom. We thus hope to clarify the phenomenon with this work, by removing these apparent paradoxes.
description: 5 pages, 3 figures
Information Reconciliation for High-Dimensional Quantum Key Distribution using Nonbinary LDPC codes
Creators: name: Müller, Ronny
name: Bacco, Davide
name: Oxenløwe, Leif Katsou
name: Forchhammer, Søren
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Information Reconciliation is an essential part of Quantum Key distribution protocols that closely resembles Slepian-Wolf coding. The application of nonbinary LDPC codes in the Information Reconciliation stage of a high-dimensional discrete-variable Quantum Key Distribution setup is proposed. We model the quantum channel using a $q$-ary symmetric channel over which qudits are sent. Node degree distributions optimized via density evolution for the Quantum Key Distribution setting are presented, and we show that codes constructed using these distributions allow for efficient reconciliation of large-alphabet keys.
description: 5 pages, 1 figure, submitted to International Symposium on Topics in Coding
title: Computergestützte Analyse deutschsprachiger Reiseberichte über Japan (1870–1900)
Creators: name: Ebner, Stefan
Year: 2022

description: Diplomatische und kulturelle Berührungspunkte zwischen Japan und dem Westen, insbesondere Deutschland, wurden bereits seit Langem umfangreich behandelt. Doch erst in den letzten zwanzig Jahren rückten deutschsprachige Reiseberichte in den Fokus der Forschung. Sie vereint die Methode, verschiedene Topoi herauszuarbeiten, jedoch ohne die Schlussfolgerungen mit konkreten Zahlen zu untermauern. Diese Forschungslücke soll mit dieser Arbeit geschlossen werden. 22 deutschsprachige Reiseberichte von 1870 bis 1900 wurden nach klar festgelegten Gesichtspunkten durchgearbeitet und namentlich genannte oder eindeutig identifizierbare Entitäten notiert, um diese statistisch auszuwerten. Das Ergebnis sind fast 800 Entitäten in 17 Kategorien (z. B. Herbergen, Religiöse Stätten, Residenzen, Seen etc.). Es stellt sich heraus, dass es durchaus einige Orte sowie Sehenswürdigkeiten gab, die von fast allen besucht wurden, jedoch hält sich ihre Anzahl stark in Grenzen. Nur zwanzig Entitäten wurden von zumindest der Hälfte der Reisenden erwähnt, d. h. dass es nur einen kleinen Sehenswürdigkeitenkanon für Touristen gab. Das ist insofern überraschend, hatten die Reisenden doch bis 1900 mit zahlreichen landesspezifischen Einschränkungen zu kämpfen. Da die meisten Reiseberichte online in digitaler Form vorhanden sind, wurde zudem besonderes Augenmerk auf Methoden der Digital Humanities gelegt. Es stellt sich heraus, dass die Zeichenerkennung (OCR) bei Texten in Antiqua-Druckschrift sehr gut funktionierte, jene in Fraktur-Druckschrift fehleranfällig waren. Ein weiteres Verfahren ist die namend-entity recognition (NER), bei der mithilfe von statistischen Grammatikmodellen versucht wird, Personen und Orte zu identifizieren. Deren Erkennung funktionierte zwar gut, doch die Rate der falsch-positiven Funden war stets sehr hoch, weswegen nur eine eingeschränkte Tauglichkeit festgestellt werden konnte.
Towards Personalized Prostate Cancer Therapy Using Delta-Reachability Analysis
Creators: name: Liu, Bing
name: Kong, Soonho
name: Gao, Sicun
name: Zuliani, Paolo
name: Clarke, Edmund M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Recent clinical studies suggest that the efficacy of hormone therapy for prostate cancer depends on the characteristics of individual patients. In this paper, we develop a computational framework for identifying patient-specific androgen ablation therapy schedules for postponing the potential cancer relapse. We model the population dynamics of heterogeneous prostate cancer cells in response to androgen suppression as a nonlinear hybrid automaton. We estimate personalized kinetic parameters to characterize patients and employ $δ$-reachability analysis to predict patient-specific therapeutic strategies. The results show that our methods are promising and may lead to a prognostic tool for personalized cancer therapy.
description: HSCC 2015
CB-HVTNet: A channel-boosted hybrid vision transformer network for lymphocyte assessment in histopathological images
Creators: name: Ali, Momina Liaqat
name: Rauf, Zunaira
name: Khan, Asifullah
name: Sohail, Anabia
name: Ullah, Rafi
name: Gwak, Jeonghwan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Transformers, due to their ability to learn long range dependencies, have overcome the shortcomings of convolutional neural networks (CNNs) for global perspective learning. Therefore, they have gained the focus of researchers for several vision related tasks including medical diagnosis. However, their multi-head attention module only captures global level feature representations, which is insufficient for medical images. To address this issue, we propose a Channel Boosted Hybrid Vision Transformer (CB HVT) that uses transfer learning to generate boosted channels and employs both transformers and CNNs to analyse lymphocytes in histopathological images. The proposed CB HVT comprises five modules, including a channel generation module, channel exploitation module, channel merging module, region-aware module, and a detection and segmentation head, which work together to effectively identify lymphocytes. The channel generation module uses the idea of channel boosting through transfer learning to extract diverse channels from different auxiliary learners. In the CB HVT, these boosted channels are first concatenated and ranked using an attention mechanism in the channel exploitation module. A fusion block is then utilized in the channel merging module for a gradual and systematic merging of the diverse boosted channels to improve the network's learning representations. The CB HVT also employs a proposal network in its region aware module and a head to effectively identify objects, even in overlapping regions and with artifacts. We evaluated the proposed CB HVT on two publicly available datasets for lymphocyte assessment in histopathological images. The results show that CB HVT outperformed other state of the art detection models, and has good generalization ability, demonstrating its value as a tool for pathologists.
description: IEEE Access (2023)
title: Digitale Sachtexte lesen und verstehen
Creators: name: Marschalek, Lena Marie
Year: 2022

description: Dieser Beitrag widmet sich der Frage, inwiefern Schüler*innen beim Lesen eines digitalen informationsorientierten Textes, im Gegensatz zum Lesen eines analogen informationsorientierten Textes, mit anderen bzw. erhöhten Anforderungen konfrontiert sind. Hervorzuheben ist die Triangulation der Forschungsperspektiven durch einen quantitativen Zugriff (Fragebögen) und eine qualitative Perspektive (Interviews). Im Rahmen der Fragebögen wird ein Wissenscheck durchgeführt, der zeigen soll, ob die Schüler*innen der beiden Gruppen dem Inhalt des ausgewählten Textes folgen können. Darauf folgt die Bewertung der Schüler*innen selbst zu den Themen Schwierigkeitsgrad, Konzentration und Aufmerksamkeit, Orientierung und Navigation, Lesefreude und Lesestil. Anschließend werden leitfadengestützte Interviews geführt, um in Ergänzung zum Fragebogen Erkenntnisse für die Beantwortung der Forschungsfrage zu gewinnen. Die Ergebnisse verweisen darauf, dass sich Schüler*innen im digitalen Lesesetting sehr gut zurechtfanden. Sie konnten mit den Schüler*innen des analogen Lesesettings mithalten und teilten viele positive Erfahrungen zum digitalen Lesen. Weder der Schwierigkeitsgrad noch die Konzentration und Aufmerksamkeit wurden im Fragebogen von den digitalen Leser*innen im Vergleich negativer bewertet. In den Interviews stellte sich jedoch heraus, dass die hypertextuelle Struktur der digitalen Texte und somit die Verlinkung der weiteren Beiträge die Schüler*innen in gewissem Maße ablenkte. Nichtsdestotrotz gaben die Leser*innen an, dass sie sich auf das vorgegebene Leseziel konzentrieren konnten. Weitere Unterschiede zeigten sich in der Kategorie Orientierung und Navigation, vor allem das Scrollen stellte hier eine Herausforderung für die digitalen Leser*innen dar. Als positiv herauszustellen ist, dass die Schüler*innen des digitalen Lesesettings im Bereich Lesefreude sogar weiter vorne lagen als die Schüler*innen des analogen Settings. Die Kategorie Lesestil konnte zeigen, dass sowohl der analoge als auch der digitale Text intensiv und genau gelesen werden konnte.
Crystallization of Lennard-Jones nanodroplets: from near melting to deeply supercooled
Creators: name: Malek, Shahrazad M. A.
name: Morrow, Gregory P.
name: Saika-Voivod, Ivan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We carry out molecular dynamics (MD) and Monte Carlo (MC) simulations to characterize nucleation in liquid clusters of 600 Lennard-Jones particles over a broad range of temperatures. We use the formalism of mean first-passage times to determine the rate and find that Classical Nucleation Theory (CNT) predicts the rate quite well, even when employing simple modelling of crystallite shape, chemical potential, surface tension and particle attachment rate, down to the temperature where the droplet loses metastability and crystallization proceeds through growth-limited nucleation in an unequilibrated liquid. Below this crossover temperature, the nucleation rate is still predicted when MC simulations are used to directly calculate quantities required by CNT. Discrepancy in critical embryo sizes obtained from MD and MC arises when twinned structures with five-fold symmetry provide a competing free energy pathway out of the critical region. We find that crystallization begins with hcp-fcc stacked precritical nuclei and differentiation to various end structures occurs when these embryos become critical. We confirm that using the largest embryo in the system as a reaction coordinate is useful in determining the onset of growth-limited nucleation and show that it gives the same free energy barriers as the full cluster size distribution once the proper reference state is identified. We find that the bulk melting temperature controls the rate, even though the solid-liquid coexistence temperature for the droplet is significantly lower. The value of surface tension that renders close agreement between CNT and direct rate determination is significantly lower than what is expected for the bulk system.
description: 17 pages, 14 figures
Analysis of Artificial Intelligence Policies for Higher Education in Europe: Country reports
Creators: name: Stracke, Christian M.
name: Griffiths, Dai
name: Pappa, Dimitra
name: Bećirović, Senad
name: Polz, Edda
name: Perla, Loredana
name: Di Grassi, Annamaria
name: Massaro, Stefania
name: Prifti Skenduli, Marjana
name: Burgos, Daniel
name: Punzo, Veronica
name: Amram, Denise
name: Ziouvelou, Xenia
name: Katsamori, Dora
name: Gabriel, Sonja
name: Nahar, Nurun
name: Schleiss, Johannes
name: Hollins, Paul
Publisher: name: Zenodo
Year: 2025
Subjects: AI literacy
Artificial Intelligence in education
European countries comparison
Higher Education research
Policy development

description: This document presents the country reports that were used as the basis for the analysis of 15 AI policies for higher education from eight European countries, drawn from individual universities, from consortia of universities and from government agencies. The results of this analysis are published in a journal paper.

This journal paper focuses the comparison of different aspects among the selected AI policies based on an overview of current research findings. The analysis distinguishes between four potential target groups, namely students, teachers, education managers and policy makers. The paper aims at contributing to the further development and improvement of AI policies for higher education through the identification of commonalities and gaps within the existing AI policies. Moreover, it calls for further and in particular evidence-based research to identify the potential and practical impact of AI in higher education and highlights the need to combine AI use in (higher) education with education about AI, often called as AI literacy.
Negative tripartite mutual information after quantum quenches in integrable systems
Creators: name: Caceffo, Fabio
name: Alba, Vincenzo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We build the quasiparticle picture for the tripartite mutual information (TMI) after quantum quenches in spin chains that can be mapped onto free-fermion theories. A nonzero TMI (equivalently, topological entropy) signals quantum correlations between three regions of a quantum many-body system. The TMI is sensitive to entangled multiplets of more than two quasiparticles, i.e., beyond the entangled-pair paradigm of the standard quasiparticle picture. Surprisingly, for some nontrivially entangled multiplets the TMI is negative at intermediate times. This means that the mutual information is monogamous, similar to holographic theories. Oppositely, for multiplets that are "classically" entangled, the TMI is positive. Crucially, a negative TMI reflects that the entanglement content of the multiplets is not directly related to the Generalized Gibbs Ensemble (GGE) that describes the post-quench steady state. Thus, the TMI is the ideal lens to observe the weakening of the relationship between entanglement and thermodynamics. We benchmark our results in the XX chain and in the transverse field Ising chain. In the hydrodynamic limit of long times and large intervals, with their ratio fixed, exact lattice results are in agreement with the quasiparticle picture.
description: 19 pages, 10 figures, 1 appendix. Minor modifications, similar to published version
Cualidades físicas del cuerpo: flexibilidad, fuerza y resistencia
Creators: name: Montaña, Luis Eduardo
Publisher: name: Universidad del Rosario
Year: 2022

description: Documento perteneciente al mooc Comunicación oral en entornos jurídicos mediante el cual se presentan una serie de acciones como la flexibilidad, fuerza y resistencia que contribuyen al desarrollo de cualidades a la hora de expresarse y ser mejores oradores.
Brief, embedded, spontaneous metacognitive talk indicates thinking like a physicist
Creators: name: Sayre, Eleanor C.
name: Irving, Paul W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Instructors and researchers think "thinking like a physicist" is important for students' professional development. However, precise definitions and observational markers remain elusive. We reinterpret popular beliefs inventories in physics to indicate what physicists think "thinking like a physicist" entails. Through discourse analysis of upper-division students' speech in natural settings, we show that students may appropriate or resist these elements. We identify a new element in the physicist speech genre: brief, embedded, spontaneous metacognitive talk (BESM talk). BESM talk communicates students' in-the-moment enacted expectations about physics as a technical field and a cultural endeavor. Students use BESM talk to position themselves as physicists or non-physicists. Students also use BESM talk to communicate their expectations in four ways: understanding, confusion, spotting inconsistencies, and generalized expectations.
description: 15 pages, 4 figures, accepted at PhysRevST-PER
FRICTION AND WEAR OF CARBON FIBER REINFORCED EPOXY
Creators: name: Ramadan, Mohammed
Publisher: name: figshare
Year: 2020
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: 91309 Tribology

description: The current article discusses the effect of filling epoxy by continuous and aligned carbon fiber in addition to different kinds of oil (olive, corn, sunflower, glycerin and paraffin) on friction and wear. Each oil type was added with different concentrations (2, 5 and 10 wt. %) into epoxy beside constant concentration of carbon fiber, (4 wt. %). Wear tests were performed using pin-on-disk tester at constant load (6.5 N), constant running time (300 sec) and constant speed (0.93 m/sec). To explore the pertinent mechanisms, the worn surfaces of the tested specimens were analyzed via scanning electron microscope. The results reported that reinforcing epoxy by continuous and aligned carbon fiber has significantly affected the friction and wear properties. Furthermore, filling carbon/epoxy composites by vegetables and mineral oils has promoted the tribological properties.KEYWORDSVegetables oils, Continuous carbon fiber, epoxy, wear, friction.INTRODUCTION Owing to their high specific strength and stiffness in addition to having excellent chemical and thermal resistance and lowering wear in adhesive situations, fiber reinforced polymer composites are being used in high stress, excessive temperature and high speed applications, [1 - 3]. Friction and wear are essential issues in these applications, [4]. Some researcher investigated friction and wear characteristics of glass fiber reinforced polymer composites under dry and oil-lubricated sliding conditions, [5 - 7]. The results proved that coefficient of friction and wear had been much less in oil lubricating sliding in contrast with dry sliding. Carbon fiber
El humor y la tristeza
Creators: name: Montaña, Luis Eduardo
Publisher: name: Universidad del Rosario
Year: 2022

description: Documento perteneciente al mooc Comunicación oral en entornos jurídicos donde se profundiza acerca de cómo el ser humano ha utilizado la comedia para disociar acontecimientos que suscitan normalmente una profunda inquietud y que se asocian con la desgracia.
Point-Gap Bound States in Non-Hermitian Systems
Creators: name: Fang, Zixi
name: Fang, Chen
name: Zhang, Kai
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we systematically investigate the impurity-induced bound states in 1D non-Hermitian systems. By establishing an exact relationship between impurity potential and bound-state energy, we determine the minimum impurity potential required to generate bound states within each point energy gap. We demonstrate that the absence of Bloch saddle points necessitates a finite threshold of impurity potential; otherwise, infinitesimal impurity potential can create bound states. Furthermore, we show that the bound states residing in the point gaps with nonzero spectral winding exhibit sensitivity to boundary conditions and will be squeezed towards the edges when the boundaries are opened, indicating the bulk-boundary correspondence in terms of point-gap topology.
description: 16 pages, 10 figures
Anderson's considerations on the flow of superfluid helium: some offshoots
Creators: name: Varoquaux, Eric
Publisher: name: arXiv
Year: 2014
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Nearly five decades have elapsed since the seminal 1966 paper of P.W. Anderson on the flow of superfluid helium, $^4$He at that time. Some of his "Considerations" -- the role of the quantum phase as a dynamical variable, the interplay between the motion of quantised vortices and potential superflow, its incidence on dissipation in the superfluid and the appearance of critical velocities, the quest for the hydrodynamic analogues of the Josephson effects in helium -- and the way they have evolved over the past half-century are recounted below. But it is due to key advances on the experimental front that phase slippage could be harnessed in the laboratory, leading to a deeper understanding of superflow, vortex nucleation, the various intrinsic and extrinsic dissipation mechanisms in superfluids, macroscopic quantum effects and the superfluid analogue of both {\it ac} and {\it dc} Josephson effects -- pivotal concepts in superfluid physics -- have been performed. Some of the experiments that have shed light on the more intimate effect of quantum mechanics on the hydrodynamics of the dense heliums are surveyed, including the nucleation of quantised vortices both by Arrhenius processes and by macroscopic quantum tunnelling, the setting up of vortex mills, and superfluid interferometry.
description: Review article - 59 pages - 34 figures - submitted to the Review of Modern Physics
Bistable switching asymptotics for the self regulating gene
Creators: name: Newby, Jay
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A simple stochastic model of a self regulating gene that displays bistable switching is analyzed. While on, a gene transcribes mRNA at a constant rate. Transcription factors can bind to the DNA and affect the gene's transcription rate. Before an mRNA is degraded, it synthesizes protein, which in turn regulates gene activity by influencing the activity of transcription factors. Protein is slowly removed from the system through degradation. Depending on how the protein regulates gene activity, the protein concentration can exhibit noise induced bistable switching. An asymptotic approximation of the mean switching rate is derived that includes the pre exponential factor, which improves upon a previously reported logarithmically accurate approximation. With the improved accuracy, a uniformly accurate approximation of the stationary probability density, describing the gene, mRNA copy number, and protein concentration is also obtained.