cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimized, unequal pulse spacing in multiple echo sequences improves refocusing in magnetic resonance
Creators: name: Branca, R.T.
name: Stokes, A.M.
name: Warren, W.S.
name: Jenista, E.R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: A recent quantum computing paper (G. S. Uhrig, Phys. Rev. Lett. 98, 100504 (2007)) analytically derived optimal pulse spacings for a multiple spin echo sequence designed to remove decoherence in a two-level system coupled to a bath. The spacings in what has been called a "Uhrig dynamic decoupling (UDD) sequence" differ dramatically from the conventional, equal pulse spacing of a Carr-Purcell-Meiboom-Gill (CPMG) multiple spin echo sequence. The UDD sequence was derived for a model that is unrelated to magnetic resonance, but was recently shown theoretically to be more general. Here we show that the UDD sequence has theoretical advantages for magnetic resonance imaging of structured materials such as tissue, where diffusion in compartmentalized and microstructured environments leads to fluctuating fields on a range of different time scales. We also show experimentally, both in excised tissue and in a live mouse tumor model, that optimal UDD sequences produce different T2 -weighted contrast than do CPMG sequences with the same number of pulses and total delay, with substantial enhancements in most regions. This permits improved characterization of low-frequency spectral density functions in a wide range of applications.
OPEUS D4.2 - Driving strategies and energy management for DAS
Creators: name: Partner-STAV
Publisher: name: Zenodo
Year: 2019

description: The work presented in this Deliverable D4.2 has been carried out in the framework of the EU Project OPEUS. The present work is also in close relation with the work carried out in WP02 and WP03, where OPEUS simulation tool has been developed and reference simulations have been done. This deliverable reports the outcomes following the assessment of DAS strategies applied to the different scenarios considered in OPEUS project using OPEUS Tool. For the reference scenarios, different approaches has been taken to improve the performance of vehicles, reducing energy consumption while ensuring close adherence to the timetable. This document explains the developed efficient and feasible driving strategies developed with this aim. The first part of the report presents the development of an energy optimal driving strategy, explaining the trajectory planner of OPEUS-Tool and optimization algorithms. The second part summarizes algorithmic improvements, strategies and energy management approaches such us: Algorithmic improvements and definition of reduced-order models for real-time capable prediction. Definition of system disturbances for the simulation of disturbed train operations. Slope parameter consideration in the trajectory planner. Increasing optimization possibilities: subsections of route depending on speed limit. Operational setting switching off the engine at low loads. Operational and driving strategies have a major influence in energy consumption. Optimization algorithms have shown up to 8.2% energy savings, in the case of the reference HS300 service. These savings are increased for profiles with altitude up to 12.3%. The application of the switch-off strategy allows for high energy savings, especially in urban and regional services, with 9% and 8% savings respectively.
Metal and dust evolution in ALMA REBELS galaxies: insights for future JWST observations
Creators: name: Palla, Marco
name: De Looze, Ilse
name: Relaño, Monica
name: van der Giessen, Stefan
name: Dayal, Pratika
name: Ferrara, Andrea
name: Schneider, Raffaella
name: Graziani, Luca
name: Algera, Hiddo S. B.
name: Aravena, Manuel
name: Bowler, Rebecca A. A.
name: Hygate, Alexander P. S.
name: Inami, Hanae
name: van Leeuwen, Ivana
name: Bouwens, Rychard
name: Hodge, Jacqueline
name: Smit, Renske
name: Stefanon, Mauro
name: van der Werf, Paul
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: ALMA observations revealed the presence of significant amounts of dust in the first Gyr of Cosmic time. However, the metal and dust buildup picture remains very uncertain due to the lack of constraints on metallicity. JWST has started to reveal the metal content of high-redshift targets, which may lead to firmer constraints on high-redshift dusty galaxies evolution. In this work, we use detailed chemical and dust evolution models to explore the evolution of galaxies within the ALMA REBELS survey, testing different metallicity scenarios that could be inferred from JWST observations. In the models, we track the buildup of stellar mass by using non-parametric SFHs for REBELS galaxies. Different scenarios for metal and dust evolution are simulated by allowing different prescriptions for gas flows and dust processes. The model outputs are compared with measured dust scaling relations, by employing metallicity-dependent calibrations for the gas mass based on the [CII]158micron line. Independently of the galaxies metal content, we found no need for extreme dust prescriptions to explain the dust masses revealed by ALMA. However, different levels of metal enrichment will lead to different dominant dust production mechanisms, with stardust production dominant over other ISM dust processes only in the metal-poor case. This points out how metallicity measurements from JWST will significantly improve our understanding of the dust buildup in high-redshift galaxies. We also show that models struggle to reproduce observables such as dust-to-gas and dust-to-stellar ratios simultaneously, possibly indicating an overestimation of the gas mass through current calibrations, especially at high metallicities.
description: 16 pages + appendices, 9 Figures, 1 Table. Resubmitted to MNRAS after moderate revision
Far-infrared line spectra of Seyfert galaxies from the Herschel-PACS Spectrometer
Creators: name: Spinoglio, Luigi
name: Pereira-Santaella, Miguel
name: Dasyra, Kalliopi M.
name: Calzoletti, Luca
name: Malkan, Matthew A.
name: Tommasin, Silvia
name: Busquet, Gemma
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present spectroscopic observations of FIR fine-structure lines of 26 Seyfert galaxies obtained with the Herschel-PACS spectrometer. These observations are complemented by spectroscopy with Spitzer-IRS and Herschel-SPIRE. The ratios of the OIII, NII, SIII and NeV lines have been used to determine electron densities in the ionised gas regions. The CI lines, observed with SPIRE, have been used to measure the densities in the neutral gas, while the OI lines provide a measure of the gas temperature, at densities below 10000 cm-3. Using the OI145/63um and SIII33/18um line ratios we find an anti-correlation of the temperature with the gas density. Using various fine-structure line ratios, we find that density stratification is common in these active galaxies. On average, the electron densities increase with the ionisation potential of the ions producing the NII, SIII and NeV emission. The infrared emission lines arise partly in the Narrow Line Region (NLR) photoionised by the AGN central engine, partly in HII regions photo ionised by hot stars and partly in neutral gas in photo-dissociated regions (PDRs). We attempt to separate the contributions to the line emission produced in these different regions by comparing our emission line ratios to empirical and theoretical values. In particular, we tried to separate the contribution of AGN and star formation by using a combination of Spitzer and Herschel lines, and we found that, besides the well known mid-IR line ratios, the mixed mid-IR/far-IR line ratio of OIII88um/OIV26um can reliably discriminate the two emission regimes, while the far-IR line ratio of CII157um/OI63um is only able to mildly separate the two regimes. By comparing the observed CII157um/NII205um ratio with photoionisation models, we also found that most of the CII emission in the galaxies we examined is due to PDRs.
description: Accepted for publication in ApJ Main Journal on the 5th November 2014, 25 pages, 16 figures
(500918) Arthur Fiennes Wickham Parke
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Hyperpolarized carbon-carbon intermolecular multiple quantum coherences
Creators: name: Warren, W.S.
name: Jenista, E.R.
name: Branca, R.T.
Publisher: name: Academic Press Inc.
Year: 2009

description: Intermolecular multiple quantum coherences (iMQCs) can provide unique contrast with sub-voxel resolution. However, the characteristic growth rate of iMQCs mostly limits these effects to either hydrogen or hydrogen-coupled systems for thermally polarized samples. Hyperpolarization techniques such as dynamic nuclear polarization (DNP) allow for significant increases in the carbon signal (even more signal than that from hydrogen), making carbon iMQCs achievable. We present the first intermolecular multiple quantum signal between two carbon nuclei.
(500917) Frederick Parke
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Third order dielectric time dependent susceptibilities and the 'Box Model'
Creators: name: Pick, Robert M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present here the calculation of the 'time dependent' moduli of the third order, dielectric, susceptibilities measured at the frequency omega of the applied electric field and at the frequency 3 omega. The calculation is performed within the frame work of the 'box model', both in the ideal case of a pure third order polarization and in the practical case studied by Samanta and Richert [J. Chem. Phys. 140, 247101 (2014)] where appears also a first order polarization contribution. We show that, in the two cases, those two modules have a largely different dynamics and that the results can be easily compared with experiments thanks to the data gathered by Samanta and Richert. This should provide a new test on the validity of the 'box model'.
(500916) Marjorie L[ucy] Rowland
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Intercombination Effects in Resonant Energy Transfer
Creators: name: Vaillant, C. L.
name: Potvliege, R. M.
name: Jones, M. P. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the effect of intercombination transitions in excitation hopping processes such as those found in Förster resonance energy transfer. Taking strontium Rydberg states as our model system, the breakdown of $LS$-coupling leads to weakly allowed transitions between Rydberg states of different spin quantum number. We show that the long-range interactions between two Rydberg atoms can be affected by these weakly allowed spin transitions, and the effect is greatest when there is a near-degeneracy between the initial state and a state with a different spin quantum number. We also consider a case of four atoms in a spin chain, and show that a spin impurity can resonantly hop along the chain. By engineering the many-body energy levels of the spin-chain, the breakdown of $LS$ coupling due to inter-electronic effects in individual atoms can be mapped onto a spatial separation of the total spin and the total orbital angular momentum along the spin chain.
description: 7 pages, 5 figures. Accepted version
Feigin-Frenkel-Hernandez Opers and the QQ-system
Creators: name: Masoero, Davide
name: Raimondo, Andrea
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper represents the completion of our work on the ODE/IM correspondence for the generalised quantum Drinfeld-Sokolov models. We present a unified and general mathematical theory, encompassing all particular cases that we had already addressed, and we fill important analytic and algebraic gaps in the literature on the ODE/IM correspondence. For every affine Lie algebra $\mathfrak{g}$ -- whose Langlands dual $\mathfrak{g}'$ is the untwisted affinisation of a simple Lie algebra -- we study a class of affine twisted parabolic Miura $\mathfrak{g}$-opers, introduced by Feigin, Frenkel and Hernandez. The Feigin-Frenkel-Hernandez opers are defined by fixing the singularity structure at $0$ and $\infty$, and by allowing a finite number of additional singular terms with trivial monodromy. We define the central connection matrix and Stokes matrix for these opers, and prove that the coefficients of the former satisfy the the $QQ$ system of the quantum $\mathfrak{g}'$-Drinfeld-Sokolov (or quantum $\mathfrak{g}'$-KdV) model. If $\mathfrak{g}$ is untwisted, it is known that the trivial monodromy conditions are equivalent to a complete system of algebraic equations for the additional singularities. We prove a suprising negative result in the case $\mathfrak{g}$ is twisted: in this case, the trivial monodromy conditions have no non-trivial solutions.
description: 55 pages, 4 figures
(500915) Althea Mary Rowland
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Trip-Based Public Transit Routing
Creators: name: Witt, Sascha
Publisher: name: arXiv
Year: 2015
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: G.2.2; G.2.3

description: We study the problem of computing all Pareto-optimal journeys in a public transit network regarding the two criteria of arrival time and number of transfers taken. We take a novel approach, focusing on trips and transfers between them, allowing fine-grained modeling. Our experiments on the metropolitan network of London show that the algorithm computes full 24-hour profiles in 70 ms after a preprocessing phase of 30 s, allowing fast queries in dynamic scenarios.
description: Minor corrections, no substantial changes. To be presented at ESA 2015
Gauge symmetry of excited states in projected entangled-pair state simulations
Creators: name: Tan, Yi
name: Chen, Ji-Yao
name: Poilblanc, Didier
name: Mei, Jia-Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: While gauge symmetry is a well-established requirement for representing topological orders in projected entangled-pair state (PEPS), its impact on the properties of low-lying excited states remains relatively unexplored. Here we perform PEPS simulations of low-energy dynamics in the Kitaev honeycomb model, which supports fractionalized gauge flux (vison) excitations. We identify gauge symmetry emerging upon optimizing an unbiased PEPS ground state. Using the PEPS adapted local mode approximation, we further classify the low-lying excited states by discerning different vison sectors. Our simulations of spin and spin-dimer dynamical correlations establish close connections with experimental observations. Notably, the selection rule imposed by the locally conserved visons results in nearly flat dispersions in momentum space for excited states belonging to the 2-vison or 4-vison sectors.
description: 8 pages, 5 figures
(500914) Charles Thomas Rowland
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Physical process first law and caustic avoidance for Rindler horizon
Creators: name: Bhattacharjee, Srijit
name: Sarkar, Sudipta
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the perturbation induced by a slowly rotating massive object as it passes through a Rindler horizon. It is shown that the passage of this object can be approximately modeled as Delta\,function type tidal distortions hitting the horizon. Further, following the analysis presented by Amsel, Marolf and Virmani related to the issue of the validity of physical process first law, we establish a condition on the size of the object so that this law holds for the Rindler horizon.
description: 15 pages, 2 figures
Efficient percolation simulations for lossy photonic fusion networks
Creators: name: Löbl, Matthias C.
name: Paesani, Stefano
name: Sørensen, Anders S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The study of percolation phenomena has various applications ranging from social networks or materials science to quantum information. The most common percolation models are bond- or site-percolation for which the Newman-Ziff algorithm enables an efficient simulation. Here, we consider several non-standard percolation models that appear in the context of measurement-based photonic quantum computing with so-called graph states and fusion networks. The associated percolation thresholds determine the tolerance to photon loss in such systems and we develop modifications of the Newman-Ziff algorithm to perform the corresponding percolation simulation efficiently. We demonstrate our algorithms by using them to characterize exemplary fusion networks and graph states. The used source code is provided as an open-source repository.
(500913) William John Wickham Rowland
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Superfluidity of pure spin current in ultracold Bose gases
Creators: name: Zhu, Qizhong
name: Sun, Qing-feng
name: Wu, Biao
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the superfluidity of a pure spin current that is a spin current without mass current. We examine two types of pure spin currents, planar and circular, in spin-1 Bose gas. For the planar current, it is usually unstable, but can be stabilized by the quadratic Zeeman effect. The circular current can be generated with spin-orbit coupling. When the spin-orbit coupling strength is weak, we find that the circular pure spin current is the ground state of the system and thus a super-flow. We discuss the experimental schemes to realize and detect a pure spin current.
description: 5 pages, 2 figures
IDQC anisotropy map imaging for tumor tissue characterization in vivo
Creators: name: Branca, R.T.
name: Mouraviev, V.
name: Kumar, C.
name: Galiana, G.
name: Jenista, E.R.
name: Warren, W.S.
name: Chen, Y.M.
name: Leuschner, C.
Publisher: name: John Wiley and Sons Inc
Year: 2009

description: Intermolecular double quantum coherences (iDQCs), signals that result from simultaneous transitions of two or more separated spins, are known to produce images that are highly sensitive to subvoxel structure, particularly local anisotropy. Here we demonstrate how iDQCs signal can be used to efficiently detect the anisotropy created in breast tumor tissues and prostate tumor tissues by targeted (LHRH-conjugated) superparamagnetic nanoparticles (SPIONs), thereby distinguishing the necrotic area from the surrounding tumor tissue.
Searching Dark Photons using displaced vertices at Belle II -- with backgrounds
Creators: name: Jaeckel, Joerg
name: Phan, Anh Vu
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Dark photons in the MeV to GeV range with kinetic mixing of the order of $\lesssim 10^{-4}-10^{-3}$ can be produced in significant numbers at low energy colliders such as Belle II. Their decay length can be macroscopic raising the hope for a fairly clean search via displaced vertices as proposed in Ref. [1]. However, even this is not background free. Here, we calculate and discuss problematic backgrounds from displaced photon conversion and discuss their potential impact on the sensitivity. In addition we also briefly consider the dangers of prompt backgrounds.
description: 21 pages, 8 figures
(500912) William Creek [Creak] Rowland
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title:  Introduzione. Per il centenario di Geist der Utopie
Creators: name: Bruzzone, Attilio
name: Carbone, Guelfo
Publisher: name: Roma TrE-Press
Year: 2019

description: L'Introduzione fornisce alcune brevi osservazioni sulla storia editoriale del Geist der Utopie di Bloch, un paragrafo sulla sua contestualizzazione rispetto ai nostri giorni e una panoramica della parte tematica del volume.
description: L'Introduzione fornisce alcune brevi osservazioni sulla storia editoriale del Geist der Utopie di Bloch, un paragrafo sulla sua contestualizzazione rispetto ai nostri giorni e una panoramica della parte tematica del volume.
description: B@belonline vol. 5 Ernst Bloch e il principio utopico ieri e oggi
OPEUS D3.1 - Scenarios Set Up and Description
Creators: name: Partner-UNEW
Publisher: name: Zenodo
Year: 2018

description: The work presented in this deliverable D3.1 has been carried out in the framework of the collaboration agreement between OPEUS and the S2R Members project FINE1 (Grant agreement No. 730818). The document summarises the main service profile and related data defining the boundary conditions for the reference scenarios (urban, regional, high speed and freight) to be used in the modelling activities of the project. The contents of this document have been produced by a combination of the information generated by previous projects (e.g. Roll2Rail), the existing draft standard prEN50591 and the joint effort of the OPEUS-FINE1 group. Specifically, the following service profiles and data have been defined: Urban Suburban Metro Tram Regional Regional 160 Regional 140 High speed High speed 300 High speed 250 Intercity Freight
On the equivalence theorem for integrable systems
Creators: name: Melikyan, A.
name: Pereira, E.
name: Rivelles, V. O.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the equivalence theorem for integrable systems using two formulations of the Alday-Arutyunov-Frolov model. We show that the S-matrix is invariant under the field transformation which reduces the non-linear Dirac brackets of one formulation into the standard commutation relations in the second formulation. We also explain how to perform the direct diagonalization of the transformed Hamiltonian by constructing the states corresponding to self-adjoint extensions.
description: 27 pages
(500911) Leonard Latham Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(500910) Philip Robert Wickham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Magnon, doublon and quarton excitations in 2D S=1/2 trimerized Heisenberg models
Creators: name: Chang, Yue-Yue
name: Cheng, Jun-Qing
name: Shao, Hui
name: Yao, Dao-Xin
name: Wu, Han-Qing
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the magnetic excitations of the trimerized Heisenberg models with intra-trimer interaction $J_1$ and inter-trimer interaction $J_2$ on four different two-dimensional lattices using a combination of stochastic series expansion quantum Monte Carlo (SSE QMC) and stochastic analytic continuation methods (SAC), complemented by cluster perturbation theory (CPT). These models exhibit quasi-particle-like excitations when $g=J_2/J_1$ is small, characterized by low-energy magnons, intermediate-energy doublons, and high-energy quartons. The low-energy magnons are associated with the magnetic ground states. They can be described by the linear spin wave theory (LSWT) of the effective block spin model and the original spin model. Doublons and quartons emerge from the corresponding internal excitations of the trimers with distinct energy levels, which can be effectively analyzed using perturbation theory when the ratio of exchange interactions $g$ is small. In this small $g$ regime, we observe a clear separation between the magnon and higher-energy spectra. However, as $g$ increases, these three spectra gradually merge into the magnon modes or continua. Nevertheless, the LSWT fails to provide quantitative descriptions of the higher-energy excitation bands due to significant quantum fluctuations. Notably, in the Collinear II and trimerized hexagon lattice, a broad continuum emerges above the single-magnon spectrum, originating from the quasi-1D physics due to the dilute connections between chains. Our numerical analysis of these 2D trimers yields valuable theoretical predictions and explanations for the inelastic neutron scattering (INS) spectra of 2D magnetic materials featuring trimerized lattices.
Constraining the Physics of AM Canum Venaticorum Systems with the Accretion Disk Instability Model
Creators: name: Cannizzo, John K.
name: Nelemans, Gijs
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent work by Levitan et al has expanded the long-term photometric database for AM CVn stars. In particular, their outburst properties are well-correlated with orbital period, and allow constraints to be placed on the secular mass transfer rate between secondary and primary if one adopts the disk instability model for the outbursts. We use the observed range of outbursting behavior for AM CVn systems as a function of orbital period to place a constraint on mass transfer rate versus orbital period P. We infer a rate ~5 x 10^{-9} Msun/yr (P/1000 s)^{-5.2}. We show the functional form so obtained is consistent with the recurrence time-orbital period relation found by Levitan et al using a simple theory for the recurrence time. Also, we predict their steep dependence of outburst duration on orbital period will flatten considerably once the longer orbital period systems have more complete observations.
description: 6 pages, 0 figures, The Astrophysical Journal, submitted: 2014 Dec 15; accepted: 2015 Feb 4
Increasing hyperpolarized spin lifetimes through true singlet eigenstates
Creators: name: Jenista, E.
name: Branca, R.T.
name: Chen, X.
name: Warren, W.S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: The sensitivity limitations for magnetic resonance imaging of organic molecules have recently been addressed by hyperpolarization methods, which prepare excess nuclear spin polarization. This approach can increase sensitivity by orders of magnitude, but the enhanced signal relaxes away in tens of seconds, even in favorable cases. Here we show theoretically that singlet states between strongly coupled spins in molecules can be used to store and retrieve population in very-long-lived disconnected eigenstates, as long as the coupling between the spins substantially exceeds both the couplings to other spins and the resonance frequency difference between them. Experimentally, 2,3-carbon-13-labeled diacetyl has a disconnected eigenstate that can store population for minutes and is read out by hydration to make the two spins inequivalent.
(500909) Mary Earle
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(500908) Fiennes Samuel Trotman
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Influence of Optically Quenched Superconductivity on Quasiparticle Relaxation Rates in Bi2Sr2CaCu2O8+delta
Creators: name: Smallwood, Christopher L.
name: Zhang, Wentao
name: Miller, Tristan L.
name: Affeldt, Gregory
name: Kurashima, Koshi
name: Jozwiak, Chris
name: Noji, Takashi
name: Koike, Yoji
name: Eisaki, Hiroshi
name: Lee, Dung-Hai
name: Kaindl, Robert A.
name: Lanzara, Alessandra
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We use time- and angle-resolved photoemission to measure quasiparticle relaxation dynamics across a laser-induced superconducting phase transition in Bi2Sr2CaCu2O8+delta. Whereas low-fluence measurements reveal picosecond dynamics, sharp femtosecond dynamics emerge at higher fluence. Analyses of data as a function of energy, momentum, and doping indicate that the closure of the near-nodal gap and disruption of macroscopic coherence are primary mechanisms driving this onset. The results demonstrate the important influence of transient electronic structure on relaxation dynamics, which is relevant for developing an understanding of nonequilibrium phase transitions.
description: 6 pages, 4 figures
Fête patronale de la saint Marcel, arrivée de la procession place de la Rouguière
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Mobilitäts-Ratgeber für Hamburg
Creators: name: Daubitz, Stephan
name: Abt, Elena
Publisher: name: TUHH Universitätsbibliothek
Year: 2019
Subjects: subject: Hamburg
subject: Nahverkehr
subject: Armut
subject: Mobilität
subject: Mobilitätsarmut
subject: ÖPNV
classificationCode: 380
subject: Handel, Kommunikation, Verkehr

description: Der Mobilitätsratgeber hilft Menschen, kostengünstig durch Hamburg zu kommen. Besonders soll er alle Personen unterstützen, die von wenig Geld leben. Der Ratgeber ist ein Ergebnis des Projekts MobileInclusion, das sich mit Armut und Mobilität in den Städten Berlin und Hamburg befasst.
description: The mobility handbook offers support to citizens to discover Hamburg on a low budget. Target persons are low-income residents, whereas the handbook holds the potential to serve many more persons. The handbook is a result of the MobileInclusion project that investigates transport disadvantage in Berlin and Hamburg.
title:  “L’inizio che accade sempre di nuovo”
Creators: name: Boella  ,  Laura
Publisher: name: Roma TrE-Press
Year: 2019

description: Spirito dell’utopia di Bloch fu certamente un inizio, un manifesto di nuovo pensiero, la risposta partecipe di un giovane intellettuale a un’epoca di nuovo inizio. Tale inizio blochiano continua a iniziare molto dopo l’opera inaugurale e profetica pubblicata cento anni fa. Tuttavia non è stato il Geist il primo volume della Gesamtausgabe, che invece iniziò con Tracce. Il libro del 1930 non ha sostituito il libro del 1918/1923, ma l’opera blochiana ha un doppio inizio, necessario per mettere in movimento l’inizio e non imprigionarlo nella logica del successo o del fallimento di un momento storico e esistenziale specifico. Seguendo l’intreccio tra lo Spirito dell’utopia e Il Principio Speranza, il presente contributo si rivolge a quel doppio inizio dell’opera blochiana, che permette di osservare come i due momenti del suo pensiero, che Adorno riteneva incompatibili – di umiltà e al tempo stesso di fragore – facciano invece parte della personalità di Bloch, il quale portò la difficoltà dell’inizio e la sua ostinata permanenza e sollecitazione fin nel cuore del suo pensiero.
description: B@belonline vol. 5 Ernst Bloch e il principio utopico ieri e oggi
Enhanced nonlinear magnetic resonance signals via square wave dipolar fields
Creators: name: Branca, R.T.
name: Warren, W.S.
name: Galiana, G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: This report introduces a new approach that enhances nonlinear solution magnetic resonance signals from intermolecular dipolar interactions. The resulting signals can theoretically be as large as the full equilibrium magnetization. Simple, readily implemented pulse sequences using square-wave magnetization modulation simultaneously refocus all even order intermolecular multiple quantum coherences, leading to a substantial net signal enhancement, complex nonlinear dynamics, and improved structural sensitivity under realistic conditions.
Supramolecular assemblies in active motor-filament systems: micelles, bilayers, and foams
Creators: name: De Luca, Filippo
name: Maryshev, Ivan
name: Frey, Erwin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Active matter systems evade the constraints of thermal equilibrium, leading to the emergence of intriguing collective behavior. A paradigmatic example is given by motor-filament mixtures, where the motion of motor proteins drives alignment and sliding interactions between filaments and their self-organization into macroscopic structures. After defining a microscopic model for these systems, we derive continuum equations, exhibiting the formation of active supramolecular assemblies such as micelles, bilayers and foams. The transition between these structures is driven by a branching instability, which destabilizes the orientational order within the micelles, leading to the growth of bilayers at high microtubule densities. Additionally, we identify a fingering instability, modulating the shape of the micelle interface at high motor densities. We study the role of various mechanisms in these two instabilities, such as contractility, active splay, and anchoring, allowing for generalization beyond the system considered here.
description: 37 pages, 12 figures
Black hole evolution: I. Supernova-regulated black hole growth
Creators: name: Dubois, Yohan
name: Volonteri, Marta
name: Silk, Joseph
name: Devriendt, Julien
name: Slyz, Adrianne
name: Teyssier, Romain
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The growth of a supermassive black hole (BH) is determined by how much gas the host galaxy is able to feed it, which in turn is controlled by the cosmic environment, through galaxy mergers and accretion of cosmic flows that time how galaxies obtain their gas, but also by internal processes in the galaxy, such as star formation and feedback from stars and the BH itself. In this paper, we study the growth of a 10^12 Msun halo at z=2, which is the progenitor of al group of galaxies at z=0, and of its central BH by means of a high-resolution zoomed cosmological simulation, the Seth simulation. We study the evolution of the BH driven by the accretion of cold gas in the galaxy, and explore the efficiency of the feedback from supernovae (SNe). For a relatively inefficient energy input from SNe, the BH grows at the Eddington rate from early times, and reaches self-regulation once it is massive enough. We find that at early cosmic times z>3.5, efficient feedback from SNe forbids the formation of a settled disc as well as the accumulation of dense cold gas in the vicinity of the BH and starves the central compact object. As the galaxy and its halo accumulate mass, they become able to confine the nuclear inflows provided by major mergers and the BH grows at a sustained near-to-Eddington accretion rate. We argue that this mechanism should be ubiquitous amongst low-mass galaxies, corresponding to galaxies with a stellar mass below <10^9 Msun in our simulations.
description: 19 pages, 15 figures, MNRAS
Digital Community Engagement. Perspectives from Five Countries: Germany, Italy, Romania, Slovakia and Spain
Creators: name: DiCE Project
Publisher: name: Zenodo
Year: 2023

description: This report presents five reviews on Digital Community Engagement (DiCE) in higher education with a country focus on Germany, Italy, Romania, Slovakia, and Spain. It aims to provide an overview of DiCE by identifying the current trends and characteristics, benefits, risks and key recommendations for its implementation. The findings set the basis for the development of the DiCE Project and are also useful for providing higher education stakeholders with an introduction to DiCE. The project partners also developed a summary version available as Digital Community Engagement: Literature Review Report (Hadidomova et al., 2023). This report begins by introducing the context of DiCE in Germany, characterized by the “platformisation” with various tools for civic and citizen engagement, mainly platforms and Civic Tech initiatives. Additionally, Germany presents well-defined strategies in HEIs for E-Service-Learning (electronic Service-Learning [eSL] or Virtual Service-Learning [vSL]). Second, the report introduces the context of Italy, where community engagement is not a well-established practice, but with a recent acceleration in its development, especially after the COVID-19 pandemic. One of the main concerns in the Italian context has been the establishment of frameworks and indicators to monitor as a strategy to define and identify specific practices. The third country focus is Romania, where DiCE has been critical in the context of the COVID-19 pandemic, providing a means for people to stay connected and engage with each other. One of the most notable examples of DiCE in Romania since 2020 has been using social media platforms, such as Facebook and Instagram, to organize virtual events and gatherings. Fourthly, the report presents the perspective of Spain, a country with a rich background and tradition in service learning. DiCE has recently emerged in Spain with social media, mobile applications and a rich discussion on digital competencies. Finally, the report presents the perspective of Slovakia, where community engagement is currently a hot topic due to the growing attention gained by issues such as social responsibility in higher education. Despite the lack of frameworks for defining and operationalising DiCE, it has already been implemented through international projects, digital platforms, eSL, and volunteerism. This report provides a comprehensive overview of the experience of DiCE across diverse higher education systems and includes specific examples from various contexts in Europe.
Detector performance of the Gamma-ray Transient Monitor onboard DRO-A Satellite
Creators: name: Feng, Pei-Yi
name: An, Zheng-Hua
name: Zhang, Da-Li
name: Wang, Chen-Wei
name: Zheng, Chao
name: Yang, Sheng
name: Xiong, Shao-Lin
name: Liu, Jia-Cong
name: Li, Xin-Qiao
name: Gong, Ke
name: Liu, Xiao-Jing
name: Gao, Min
name: Wen, Xiang-Yang
name: liu, Ya-Qing
name: Zhao, Xiao-Yun
name: Zhang, Fan
name: Sun, Xi-Lei
name: Lu, Hong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Gamma-ray Transient Monitor (GTM) is an all-sky monitor onboard the Distant Retrograde Orbit-A (DRO-A) satellite with the scientific objective of detecting gamma-ray transients ranging from 20 keV to 1 MeV. GTM is equipped with 5 Gamma-ray Transient Probe (GTP) detector modules, utilizing the NaI(Tl) scintillator coupled with a SiPM array. To reduce the SiPM noise, GTP makes use of a dedicated dual-channel coincident readout design. In this work, we firstly studied the impact of different coincidence times on detection efficiency and ultimately selected the 500 ns time coincidence window for offline data processing. To test the performance of GTPs and validate the Monte Carlo simulated energy response, we conducted comprehensive ground calibration tests using Hard X-ray Calibration Facility (HXCF) and radioactive sources, including energy response, detection efficiency, spatial response, bias-voltage response, and temperature dependence. We extensively presented the ground calibration results, and validated the design and mass model of GTP detector. These work paved the road for the in-flight observation and science data analysis.
description: 15 pages, 25 figures