cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Trust Coordination for Research Collaboration in the EOSC era
Creators: name: Groep, David L.
name: Jensen, Jens
name: Kelsey, David
name: Kouril, Daniel
name: Kremers, Maarten
name: Short, Hannah
Publisher: name: Zenodo
Year: 2020

description: The European Open Science Cloud (EOSC) enters a next phase of integration and consolidation with the establishment of a common service portal listing underpinning services that enable distributed resources in the areas of computation, data, open access, and above-the-net collaboration services. More than ever before, composition of services within the EOSC ecosystem will create mutual dependencies between service providers –in terms of not only quality management, provisioning, accounting and settlement, but specifically also in managing the attributes of trust: integrity, resilience, availability, and trust in the composition of services and their use. Trust management is enabled by establishing and maintaining essential capabilities providing the appropriate level of integrity, resilience, availability, and confidentiality of the involved services and data.
(502624) Mary Elliot 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.
Estimating River Surface Elevation From ArcticDEM
Creators: name: Dai, C.
name: Pavelsky, T.M.
name: Durand, M.
name: Altenau, E.H.
name: Howat, I.M.
Publisher: name: Blackwell Publishing Ltd
Year: 2018

description: ArcticDEM is a collection of 2-m resolution, repeat digital surface models created from stereoscopic satellite imagery. To demonstrate the potential of ArcticDEM for measuring river stages and discharges, we estimate river surface heights along a reach of Tanana River near Fairbanks, Alaska, by the precise detection of river shorelines and mapping of shorelines to land surface elevation. The river height profiles over a 15-km reach agree with in situ measurements to a standard deviation less than 30 cm. The time series of ArcticDEM-derived river heights agree with the U.S. Geological Survey gage measurements with a standard deviation of 32 cm. Using the rating curve for that gage, we obtain discharges with a validation accuracy (root-mean-square error) of 234 m3/s (23% of the mean discharge). Our results demonstrate that ArcticDEM can accurately measure spatial and temporal variations of river surfaces, providing a new and powerful data set for hydrologic analysis.
(502623) Sarah Elliot 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.
(502622) Sarah Eliot
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.
Narasimhan--Ramanan branes and wobbly Higgs bundles
Creators: name: Franco, Emilio
name: Gothen, Peter B.
name: Oliveira, André G.
name: Peón-Nieto, Ana
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J33, 14D21

description: Narasimhan--Ramanan branes were introduced by the authors in a previous article. They consist of a family of $BBB$-branes inside the moduli space of Higgs bundles, and a family of complex Lagrangian subvarieties. It was conjectured that these complex Lagrangian subvarieties support the $BAA$-branes that are mirror dual to the Narasimhan--Ramanan $BBB$-branes. In this article we show that the support of these branes intersects non-trivially the locus of wobbly Higgs bundles.
description: 20 pages, minor corrections
(502621) Jacob 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.
Three-Dimensional Simulations of SASI- and Convection-Dominated Core-Collapse Supernovae
Creators: name: Fernández, Rodrigo
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the effect of dimensionality on the transition to explosion in neutrino-driven core-collapse supernovae. Using parameterized hydrodynamic simulations of the stalled supernova shock in one-, two- (2D), and three spatial dimensions (3D), we systematically probe the extent to which hydrodynamic instabilities alone can tip the balance in favor of explosion. In particular, we focus on systems that are well into the regimes where the Standing Accretion Shock Instability (SASI) or neutrino-driven convection dominate the dynamics, and characterize the difference between them. We find that SASI-dominated models can explode with up to ~20% lower neutrino luminosity in 3D than in 2D, with the magnitude of this difference decreasing with increasing resolution. This improvement in explosion conditions is related to the ability of spiral modes to generate more non-radial kinetic energy than a single sloshing mode, increasing the size of the average shock radius, and hence generating better conditions for the formation of large-scale, high-entropy bubbles. In contrast, convection-dominated explosions show a smaller difference in their critical heating rate between 2D and 3D (<8%), in agreement with previous studies. The ability of our numerical implementation to maintain arbitrary symmetries is quantified with a set of SASI-based tests. We discuss implications for the diversity of explosion paths in a realistic supernova environment.
description: Accepted by MNRAS. Added a convection-dominated model to decrease the critical heating rate bracket. Minor changes otherwise
Intrinsic Exchange Bias from Interfacial Reconstruction in an Epitaxial NixCoyFe3-x-yO4(111)/α-Al2O3(0001) Thin Film Family
Creators: name: Yang, Detian
name: Liu, Yaohua
name: Xu, Xiaoshan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Intrinsic exchange bias is known as the unidirectional exchange anisotropy that emerges in a nominally single-component ferro-(ferri-)magnetic system. In this work, with magnetic and structural characterizations, we demonstrate that intrinsic exchange bias is a general phenomenon in (Ni, Co, Fe)-based spinel oxide films deposited on α-Al2O3(0001) substrates, due to the emergence of a rock-salt interfacial layer consisting of antiferromagnetic CoO from interfacial reconstruction. We show that in NixCoyFe3-x-yO4(111)/α-Al2O3(0001) films, intrinsic exchange bias and interfacial reconstruction have consistent dependences on Co concentration y, while the Ni and Fe concentration appears to be less important. This work establishes a family of intrinsic exchange bias materials with great tunability by stoichiometry and highlights the strategy of interface engineering in controlling material functionalities.
description: Main Text: 7 pages, 5 figures; Supplemental Materials: 8 pages, 5 figures. J. Phys.: Condens. Matter (2024)
D6.1 - Fact Sheets for cluster projects and other core initiatives (Release 1)
Creators: name: Pittonet, Sara
name: Giuffrida, Rita
name: Mari, Marialetizia
Publisher: name: Zenodo
Year: 2021
Subjects: Blue Data Infrastructures
EOSC

description: Since the launch of Blue-Cloud, the project has proactively worked on establishing strong partnerships between a variety of actors, aiming to create long-lasting relationships both for attaining the Blue-Cloud's long-term objectives and for contributing to shaping the strategic Roadmap to 2030. Blue-Cloud has established synergies in the Open Science, Blue Economy and Marine Research fields as the team believes that through collaboration and cooperation with initiatives operating in the same field, the value of Blue Cloud services increases. As output of this effort to cluster with related projects and initiatives in Europe and Beyond, this first release of the Blue-Cloud Factsheets for cluster projects and other core initiatives presents an overview of all the projects and infrastructures Blue-Cloud has established synergies with in the first year and a half from its launch (M18). The collaborations span from data integration to joint communication events. Overall, the synergies established have been classified around the main assets of the Blue-Cloud infrastructure: Data Discovery and Access Service, Cyber Infrastructure and Virtual Research Environment, and Demonstrators, plus a categories for those initiatives looking forward to contribute to the BlueCloud Roadmap. So far Blue-Cloud has established connections with 32 projects and organisations and has started concrete collaboration with 21, greatly surpassing the KPI for M36 (10). The dialogues represent the ground layer for successful collaborations to be pursued in the next months, leveraging on the public availability of the Bluer-Cloud resources, namely the demonstrators and their VREs (launched for public use in March 2021), the Blue-Cloud Discovery and Access services (to be ready in May 2021) and last but not least the unprecedented wealth of data resources of Blue-Cloud. This document represents a first release of the Blue-Cloud fact sheets for cluster projects and other core initiatives. • Section 1 presents the approach adopted and an overview of the synergies established in the framework of Blue-Cloud main assets. Section 2 lists the Factsheets for cluster projects and other initiatives, grouped by e-Infrastructures (2.1) , Blue Data infrastructures (2.2) and other projects and initiatives (2.3). A second release of this report (D6.6) will be produced at the end of the project (M35).
Performance is not enough: the story told by a Rashomon quartet
Creators: name: Biecek, Przemyslaw
name: Baniecki, Hubert
name: Krzyzinski, Mateusz
name: Cook, Dianne
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The usual goal of supervised learning is to find the best model, the one that optimizes a particular performance measure. However, what if the explanation provided by this model is completely different from another model and different again from another model despite all having similarly good fit statistics? Is it possible that the equally effective models put the spotlight on different relationships in the data? Inspired by Anscombe's quartet, this paper introduces a Rashomon Quartet, i.e. a set of four models built on a synthetic dataset which have practically identical predictive performance. However, the visual exploration reveals distinct explanations of the relations in the data. This illustrative example aims to encourage the use of methods for model visualization to compare predictive models beyond their performance.
On the flow and thermal characteristics of high Reynolds numbers (2800-17000) dye cell: simulation and experiment
Creators: name: Mishra, G. K.
name: Kumar, Abhay
name: Prakash, O.
name: Biswal, R.
name: Dixit, S. K.
name: Nakhe, S. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This paper presents computational and experimental studies on wavelength/frequency fluctuation characteristics of high pulse repetition rate (PRR: 18 kHz) dye laser pumped by frequency doubled Nd:YAG laser (532 nm). The temperature gradient in the dye solution is found to be responsible for wavelength fluctuations of the dye laser at low flow rates (2800
description: 32 pages, 14 figures
Efficient Visuo-Haptic Object Shape Completion for Robot Manipulation
Creators: name: Rustler, Lukas
name: Matas, Jiri
name: Hoffmann, Matej
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: For robot manipulation, a complete and accurate object shape is desirable. Here, we present a method that combines visual and haptic reconstruction in a closed-loop pipeline. From an initial viewpoint, the object shape is reconstructed using an implicit surface deep neural network. The location with highest uncertainty is selected for haptic exploration, the object is touched, the new information from touch and a new point cloud from the camera are added, object position is re-estimated and the cycle is repeated. We extend Rustler et al. (2022) by using a new theoretically grounded method to determine the points with highest uncertainty, and we increase the yield of every haptic exploration by adding not only the contact points to the point cloud but also incorporating the empty space established through the robot movement to the object. Additionally, the solution is compact in that the jaws of a closed two-finger gripper are directly used for exploration. The object position is re-estimated after every robot action and multiple objects can be present simultaneously on the table. We achieve a steady improvement with every touch using three different metrics and demonstrate the utility of the better shape reconstruction in grasping experiments on the real robot. On average, grasp success rate increases from 63.3% to 70.4% after a single exploratory touch and to 82.7% after five touches. The collected data and code are publicly available (https://osf.io/j6rkd/, https://github.com/ctu-vras/vishac)
(502620) John Mersh 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.
The INOS Learning Design Framework: Fostering the Educational Value of Open Science, Citizen Science and Open Innovation Activities
Creators: name: Teo, Elisha Anne
Publisher: name: Zenodo
Year: 2020
Subjects: Open knowledge; open science; citizen science; open innovation; pedagogy; learning design

description: The document corresponds to O2A3 of the INOS Project. The INOS Project aims to enhance the impact of OS/CS/OI activities by offering pedagogical support to HEIs and other activity organisers.
A New Estimate of North American Mountain Snow Accumulation From Regional Climate Model Simulations
Creators: name: Shum, C.K.
name: Zhang, Y.
name: Durand, M.T.
name: Guo, J.
name: Kapnick, S.B.
name: Wrzesien, M.L.
name: Pavelsky, T.M.
Publisher: name: Blackwell Publishing Ltd
Year: 2018

description: Despite the importance of mountain snowpack to understanding the water and energy cycles in North America's montane regions, no reliable mountain snow climatology exists for the entire continent. We present a new estimate of mountain snow water equivalent (SWE) for North America from regional climate model simulations. Climatological peak SWE in North America mountains is 1,006 km3, 2.94 times larger than previous estimates from reanalyses. By combining this mountain SWE value with the best available global product in nonmountain areas, we estimate peak North America SWE of 1,684 km3, 55% greater than previous estimates. In our simulations, the date of maximum SWE varies widely by mountain range, from early March to mid-April. Though mountains comprise 24% of the continent's land area, we estimate that they contain ~60% of North American SWE. This new estimate is a suitable benchmark for continental- and global-scale water and energy budget studies.
Global extent of rivers and streams
Creators: name: Allen, G.H.
name: Pavelsky, T.
Publisher: name: American Association for the Advancement of Science
Year: 2018

description: The turbulent surfaces of rivers and streams are natural hotspots of biogeochemical exchange with the atmosphere. At the global scale, the total river-atmosphere flux of trace gasses such as carbon dioxide depends on the proportion of Earth’s surface that is covered by the fluvial network, yet the total surface area of rivers and streams is poorly constrained. We used a global database of planform river hydromorphology and a statistical approach to show that global river and stream surface area at mean annual discharge is 773,000 ± 79,000 square kilometers (0.58 ± 0.06%) of Earth’s nonglaciated land surface, an area 44 ± 15% larger than previous spatial estimates. We found that rivers and streams likely play a greater role in controlling land-atmosphere fluxes than is currently represented in global carbon budgets.
Phase transitions for scaling of structural correlations in directed networks
Creators: name: van der Hoorn, Pim
name: Litvak, Nelly
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 62H20, 05C80

description: Analysis of degree-degree dependencies in complex networks, and their impact on processes on networks requires null models, i.e. models that generate uncorrelated scale-free networks. Most models to date however show structural negative dependencies, caused by finite size effects. We analyze the behavior of these structural negative degree-degree dependencies, using rank based correlation measures, in the directed Erased Configuration Model. We obtain expressions for the scaling as a function of the exponents of the distributions. Moreover, we show that this scaling undergoes a phase transition, where one region exhibits scaling related to the natural cut-off of the network while another region has scaling similar to the structural cut-off for uncorrelated networks. By establishing the speed of convergence of these structural dependencies we are able to asses statistical significance of degree-degree dependencies on finite complex networks when compared to networks generated by the directed Erased Configuration Model.
Vacuum currents induced by a magnetic flux around a cosmic string with finite core
Creators: name: de Mello, E. R. Bezerra
name: Bezerra, V. B.
name: Saharian, A. A.
name: Harutyunyan, H. H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We evaluate the Hadamard function and the vacuum expectation value of the current density for a massive complex scalar field in the generalized geometry of a straight cosmic string with a finite core enclosing an arbitrary distributed magnetic flux along the string axis. For the interior geometry, a general cylindrically symmetric static metric tensor is used with finite support. In the region outside the core, both the Hadamard function and the current density are decomposed into the idealized zero-thickness cosmic string and core-induced contributions. The only nonzero component corresponds to the azimuthal current. The zero-thickness part of the latter is a periodic function of the magnetic flux inside the core, with the period equal to the quantum flux. As a consequence of the direct interaction of the quantum field with the magnetic field inside the penetrable core, the core-induced contribution, in general, is not a periodic function of the flux. In addition, the vacuum current, in general, is not a monotonic function of the distance from the string and may change the sign. For a general model of the core interior, we also evaluate the magnetic fields generated by the vacuum current. As applications of the general results, we have considered an impenetrable core modeled by Robin boundary condition, a core with the Minkowski-like interior and a core with a constant positive curvature space. Various exactly solvable distributions of the magnetic flux are discussed.
description: 27 pages, 6 figures
Advanced Techniques in Automated High Resolution Scanning Transmission Electron Microscopy
Creators: name: Pattison, Alexander
name: Pedroso, Cassio C. S.
name: Cohen, Bruce E.
name: Ondry, Justin C.
name: Alivisatos, A. Paul
name: Theis, Wolfgang
name: Ercius, Peter
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Scanning transmission electron microscopy is a common tool used to study the atomic structure of materials. It is an inherently multimodal tool allowing for the simultaneous acquisition of multiple information channels. Despite its versatility, however, experimental workflows currently rely heavily on experienced human operators and can only acquire data from small regions of a sample at a time. Here, we demonstrate a flexible pipeline-based system for high-throughput acquisition of atomic-resolution structural data using a custom built sample stage and automation program. The program is capable of operating over many hours without human intervention improving the statistics of high-resolution experiments.
Comparing the effects of nuclear and electron spins on the formation of neutral hydrogen molecule
Creators: name: Miao, Hui-hui
name: Ozhigov, Yuri Igorevich
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the association-dissociation model of neutral hydrogen molecule, which is a finite-dimensional cavity quantum electrodynamics model of chemistry with two two-level artificial atoms on quantum dots placed in optical cavities, based on the Tavis-Cummings-Hubbard model. The motion of the nuclei can be represented in quantum form. Electron spin transition and spin-spin interaction between electron and nucleus are both considered. Consideration is also given to the effects of nuclear and electron spins on the formation of neutral hydrogen molecule.
description: 9 pages, 5 figures. arXiv admin note: substantial text overlap with arXiv:2209.09607
Compositional analysis of transgenic Bt-chickpea resistant to Helicoverpa armigera
Creators: name: Gupta, Rubi
name: Ananta Madhab Baruah
name: Acharjee, Sumita
name: Bidyut Kumar Sarmah
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: Plant Biology

description: Transgenic chickpeas expressing high levels of a truncated version of the cry1Ac (trcry1Ac) gene conferred complete protection to Helicoverpa armigera in the greenhouse. Homozygous progeny of two lines, Cry1Ac.1 and Cry1Ac.2, had similar growth pattern and other morphological characteristics, including seed yield, compared to the non-transgenic counterpart; therefore, seed compositional analysis was carried out. These selected homozygous chickpea lines were selfed for ten generations along with the non-transgenic parent under contained conditions. A comparative seed composition assessment, seed storage proteins profiling, and in vitro protein digestibility were performed to confirm that these lines do not have significant alterations in seed composition compared to the parent. Our analyses showed no significant difference in primary nutritional composition between transgenic and non-transgenic chickpeas. In addition, the seed storage protein profile also showed no variation between the transgenic chickpea lines. Seed protein digestibility assays using simulated gastric fluid revealed a similar rate of digestion of proteins from the transgenic trcry1Ac lines compared to the non-transgenic line. Thus, our data suggest no unintended changes in the seed composition of transgenic chickpea expressing a trcry1Ac gene.
Characterizing water surface elevation under different flow conditions for the upcoming SWOT mission
Creators: name: Schumann, G.J.-P.
name: Castellarin, A.
name: Frasson, R.P.M.
name: Brath, A.
name: Wei, R.
name: Durand, M.T.
name: Domeneghetti, A.
name: Pavelsky, T.M.
Publisher: name: Elsevier B.V.
Year: 2018

description: The Surface Water and Ocean Topography satellite mission (SWOT), scheduled for launch in 2021, will deliver two-dimensional observations of water surface heights for lakes, rivers wider than 100 m and oceans. Even though the scientific literature has highlighted several fields of application for the expected products, detailed simulations of the SWOT radar performance for a realistic river scenario have not been presented in the literature. Understanding the error of the most fundamental “raw” SWOT hydrology product is important in order to have a greater awareness about strengths and limits of the forthcoming satellite observations. This study focuses on a reach (∼140 km in length) of the middle-lower portion of the Po River, in Northern Italy, and, to date, represents one of the few real-case analyses of the spatial patterns in water surface elevation accuracy expected from SWOT. The river stretch is characterized by a main channel varying from 100 to 500 m in width and a large floodplain (up to 5 km) delimited by a system of major embankments. The simulation of the water surface along the Po River for different flow conditions (high, low and mean annual flows) is performed with inputs from a quasi-2D model implemented using detailed topographic and bathymetric information (LiDAR, 2 m resolution). By employing a simulator that mimics many SWOT satellite sensor characteristics and generates proxies of the remotely sensed hydrometric data, this study characterizes the spatial observations potentially provided by SWOT. We evaluate SWOT performance under different hydraulic conditions and assess possible effects of river embankments, river width, river topography and distance from the satellite ground track. Despite analyzing errors from the raw radar pixel cloud, which receives minimal processing, the present study highlights the promising potential of this Ka-band interferometer for measuring water surface elevations, with mean elevation errors of 0.1 cm and 21 cm for high and low flows, respectively. Results of the study characterize the expected performance of the upcoming SWOT mission and provide additional insights into potential applications of SWOT observations.
Spin dynamics of the anisotropic spin-1 antiferromagnetic chain at finite magnetic fields
Creators: name: Rahnavard, Yousef
name: Brenig, Wolfram
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present results of a study of the antiferromagnetic spin-1 chain, subject to the simultaneous presence of single-ion anisotropy and external magnetic fields. Using quantum Monte-Carlo based on the stochastic series expansion method we first uncover a rich quantum phase diagram comprising Néel, Haldane, Luttinger liquid, and large anisotropy phases. Second, we scan across this phase diagram over a wide range of parameters, evaluating the transverse dynamic structure factor, which we show to exhibit sharp massive modes, as well as multi particle continua. For vanishing anisotropy and fields, comparison with existing results from other analytic and numerical approaches shows convincing consistency.
Comparison of methods to estimate snow water equivalent at the mountain range scale: A case study of the California Sierra Nevada
Creators: name: Margulis, S.A.
name: Howat, I.M.
name: Huning, L.S.
name: Pavelsky, T.M.
name: Durand, M.T.
name: Wrzesien, M.L.
Publisher: name: American Meteorological Society
Year: 2017

description: Despite the importance of snow in global water and energy budgets, estimates of global mountain snow water equivalent (SWE) are not well constrained. Two approaches for estimating total range-wide SWE over Sierra Nevada, California, are assessed: 1) global/hemispherical models and remote sensing and models available for continental United States (CONUS) plus southern Canada (CONUS+) available to the scientific community and 2) regional climate model simulations via the Weather Research and Forecasting (WRF) Model run at 3, 9, and 27 km. As no truth dataset provides total mountain range SWE, these two approaches are compared to a "reference" SWE consisting of three published, independent datasets that utilize/validate against in situ SWE measurements. Model outputs are compared with the reference datasets for three water years: 2005 (high snow accumulation), 2009 (average), and 2014 (low). There is a distinctive difference between the reference/WRF datasets and the global/CONUS+ daily estimates of SWE, with the former suggesting up to an order of magnitude more snow. Results are qualitatively similar for peak SWE and 1 April SWE for all three years. Analysis of SWE time series indicates that lower SWE for global and CONUS+ datasets is likely due to precipitation, rain/snow partitioning, and ablation parameterization differences. It is found that WRF produces reasonable (within 50%) estimates of total mountain range SWE in the Sierra Nevada, while the global and CONUS+ datasets underestimate SWE.
(502619) Richard Withers
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.
Polaritonic Ultrastrong Coupling: Quantum Entanglement in Ground State
Creators: name: Miao, Qingtian
name: Agarwal, G. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The ultrastrong coupling between the elementary excitations of matter and microcavity modes is studied in a fully analytical quantum-mechanical theoretical framework. The elementary excitation could be phonons, excitons, plasmons, etc. From the diagonalization of the Hamiltonian, we obtain the ground state of the polariton Hamiltonian. The ground state belongs to the Gaussian class. Using the Gaussian property we calculate the quantum entanglement in the ground state. We use two different measures for quantum entanglement -- entanglement entropy and the logarithmic negativity parameter and obtain rather simple analytical expressions for the entanglement measures. Our findings show that the amount of quantum entanglement in the ground state is quite significant in the ultrastrong coupling regime. It can be obtained from the measurement of the polariton frequencies.
(502618) Elizabeth Maunder
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.
Rapid decline in river icings detected in Arctic Alaska: Implications for a changing hydrologic cycle and river ecosystems
Creators: name: Pavelsky, T.M.
name: Zarnetske, J.P.
Publisher: name: Blackwell Publishing Ltd
Year: 2017

description: Arctic river icings are surface ice accumulations that can be >10 km2 in area and >10 m thick. They commonly impact the hydrology, geomorphology, and ecology of Arctic river environments. Previous examination of icing dynamics in Arctic Alaska found no substantial changes in extent through 2005. However, here we use daily time series of satellite imagery for 2000–2015 to demonstrate that the temporal persistence and minimum summertime extent of large icings in part of Arctic Alaska and Canada have declined rapidly. We identified 122 large ephemeral icings, and 70 are disappearing significantly earlier in the summer, with a mean trend of −1.6 ± 0.9 day−1 for fully ephemeral features. Additionally, 14 of 25 icings that usually persist through the summer have significantly smaller minimum extents (−2.6 ± 1.6% yr−1). These declines are remarkably rapid and suggest that Arctic hydroclimatic systems generating icings, and their associated ecosystems, are changing rapidly.
AirSWOT measurements of river water surface elevation and slope: Tanana River, AK
Creators: name: Moller, D.
name: Bates, P.D.
name: Calmant, S.
name: Pavelsky, T.M.
name: Altenau, E.H.
name: Allen, G.H.
name: Pitcher, L.H.
name: Smith, L.C.
name: Durand, M.
name: Lion, C.
Publisher: name: Blackwell Publishing Ltd
Year: 2017

description: Fluctuations in water surface elevation (WSE) along rivers have important implications for water resources, flood hazards, and biogeochemical cycling. However, current in situ and remote sensing methods exhibit key limitations in characterizing spatiotemporal hydraulics of many of the world's river systems. Here we analyze new measurements of river WSE and slope from AirSWOT, an airborne analogue to the Surface Water and Ocean Topography (SWOT) mission aimed at addressing limitations in current remotely sensed observations of surface water. To evaluate its capabilities, we compare AirSWOT WSEs and slopes to in situ measurements along the Tanana River, Alaska. Root-mean-square error is 9.0 cm for WSEs averaged over 1 km2 areas and 1.0 cm/km for slopes along 10 km reaches. Results indicate that AirSWOT can accurately reproduce the spatial variations in slope critical for characterizing reach-scale hydraulics. AirSWOT's high-precision measurements are valuable for hydrologic analysis, flood modeling studies, and for validating future SWOT measurements.
Diversity-Weighted Portfolios with Negative Parameter
Creators: name: Vervuurt, Alexander
name: Karatzas, Ioannis
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business
subject: 60H30, 91B28

description: We analyze a negative-parameter variant of the diversity-weighted portfolio studied by Fernholz, Karatzas, and Kardaras (Finance Stoch 9(1):1-27, 2005), which invests in each company a fraction of wealth inversely proportional to the company's market weight (the ratio of its capitalization to that of the entire market). We show that this strategy outperforms the market with probability one, under a non-degeneracy assumption on the volatility structure and the assumption that the market weights admit a positive lower bound. Several modifications of this portfolio, which outperform the market under milder versions of this "no-failure" condition, are put forward, one of which is rank-based. An empirical study suggests that such strategies as studied here have indeed the potential to outperform the market and to be preferable investment opportunities, even under realistic proportional transaction costs.
description: 25 pages
Automated River Reach Definition Strategies: Applications for the Surface Water and Ocean Topography Mission
Creators: name: Williams, B.A.
name: Picamilh, C.
name: Schumann, G.
name: Durand, M.
name: Minear, J.T.
name: Frasson, R.P.D.M.
name: Garambois, P.-A.
name: Wei, R.
name: Rodriguez, E.
name: Lion, C.
name: Pavelsky, T.
name: Domeneghetti, A.
Publisher: name: Blackwell Publishing Ltd
Year: 2017

description: The upcoming Surface Water and Ocean Topography (SWOT) mission will measure water surface heights and widths for rivers wider than 100 m. At its native resolution, SWOT height errors are expected to be on the order of meters, which prevent the calculation of water surface slopes and the use of slope-dependent discharge equations. To mitigate height and width errors, the high-resolution measurements will be grouped into reaches (∼5 to 15 km), where slope and discharge are estimated. We describe three automated river segmentation strategies for defining optimum reaches for discharge estimation: (1) arbitrary lengths, (2) identification of hydraulic controls, and (3) sinuosity. We test our methodologies on 9 and 14 simulated SWOT overpasses over the Sacramento and the Po Rivers, respectively, which we compare against hydraulic models of each river. Our results show that generally, height, width, and slope errors decrease with increasing reach length. However, the hydraulic controls and the sinuosity methods led to better slopes and often height errors that were either smaller or comparable to those of arbitrary reaches of compatible sizes. Estimated discharge errors caused by the propagation of height, width, and slope errors through the discharge equation were often smaller for sinuosity (on average 8.5% for the Sacramento and 6.9% for the Po) and hydraulic control (Sacramento: 7.3% and Po: 5.9%) reaches than for arbitrary reaches of comparable lengths (Sacramento: 8.6% and Po: 7.8%). This analysis suggests that reach definition methods that preserve the hydraulic properties of the river network may lead to better discharge estimates.
title:  The Strict Line Between Law and Politics. A Comparative Analysis of Quebec, Catalonia and Scotland
Creators: name: Cersosimo  ,  Chiara
Publisher: name: Roma TrE-Press
Year: 2019

description: La diffusione dei movimenti secessionisti negli ultimi decenni ha messo a repentaglio la conformità con l'ordine costituzionale di sistemi giuridici democratici consolidati. Lo scopo di questo documento è quello di indicare le procedure lecite disponibili che possono aiutare a trovare un compromesso tra le aspirazioni di coloro che desiderano la secessione e la prerogativa dei governi centrali di mantenere l’integrità del territorio dei loro Stati.
description: Roma Tre Law Review – 02/2019
title:  Same-sex Spouses’ Rights in the CJEU Coman Case
Creators: name: Frattone  ,  Cristina
Publisher: name: Roma TrE-Press
Year: 2019

description: Nella sentenza Coman del 5 giugno 2018 la Grande Camera della Corte di giustizia dell'Unione Europea (CGE o Corte) ha dato una risposta positiva alla domanda se il coniuge dello stesso sesso di un cittadino dell'UE possieda o meno il diritto di trasferirsi e risiedere in un altro Stato membro dell’Unione Europea. In primo luogo, confermando la giurisprudenza consolidata, la Corte di giustizia ha affermato che la direttiva 2004/38 / CE si applica in via analogica ad un cittadino dell'UE che si è stabilito in un altro Stato membro e poi ha fatto ritorno nel suo membro Stato di nazionalità. Pertanto, il diritto di circolare e di soggiornare liberamente nell'UE ai sensi dell'articolo 21, paragrafo 1del TFUE autorizza il cittadino dell'Unione a invocare il diritto alla libera circolazione anche nei confronti dello Stato membro di cui è cittadino. In secondo luogo, la Corte di giustizia europea ha fornito un'ampia interpretazione del termine "coniuge" di cui all'articolo 2, paragrafo 2, lettera a) Direttiva 2004/38 che presuppone un'espressione neutra dal punto di vista del genere, vale a dire della persona legalmente sposata
ad un altro. Ai soli fini della legge sulla libera circolazione dell'UE, il termine "coniuge" dà diritto al diritto di residenza in un altro Stato membro per un periodo superiore a tre mesi ai sensi dell'articolo 7, paragrafo 2, della direttiva 2004/38, inclusa la persona dello stesso sesso con cui il cittadino dell'UE ha contratto un matrimonio secondo la legislazione nazionale di uno Stato membro. In conclusione, dato il significato della libera circolazione nel diritto dell'UE, gli Stati membri non hanno il permesso di negare il diritto di trasferirsi e risiedere per più di tre mesi al coniuge dello stesso sesso di un cittadino dell'Unione per il solo motivo che la legislazione nazionale dello Stato membro ospitante non riconosce il matrimonio omosessuale legalmente contratto in un altro Stato membro.
description: Roma Tre Law Review – 02/2019
The effects of spatial resolution and dimensionality on modeling regional-scale hydraulics in a multichannel river
Creators: name: Pavelsky, T.M.
name: Altenau, E.H.
name: Neal, J.C.
name: Bates, P.D.
Publisher: name: Blackwell Publishing Ltd
Year: 2017

description: As modeling capabilities at regional and global scales improve, questions remain regarding the appropriate process representation required to accurately simulate multichannel river hydraulics. This study uses the hydrodynamic model LISFLOOD-FP to simulate patterns of water surface elevation (WSE), depth, and inundation extent across a ∼90 km, anabranching reach of the Tanana River, Alaska. To provide boundary conditions, we collected field observations of bathymetry and WSE during a 2 week field campaign in summer 2013. For the first time at this scale, we test a simple, raster-based model's capabilities to simulate 2-D, in-channel patterns of WSE and inundation extent. Additionally, we compare finer resolution (≤25 m) 2-D models to four other models of lower dimensionality and coarser resolution (100–500 m) to determine the effects of simplifying process representation. Results indicate that simple, raster-based models can accurately simulate 2-D, in-channel hydraulics in the Tanana. Also, the fine-resolution, 2-D models produce lower errors in spatiotemporal outputs of WSE and inundation extent compared to coarse-resolution, 1-D models: 22.6 cm versus 56.4 cm RMSE for WSE, and 90% versus 41% Critical Success Index values for simulating inundation extent. Incorporating the anabranching channel network using subgrid representations for smaller channels is important for simulating accurate hydraulics and lowers RMSE in spatially distributed WSE by at least 16%. As a result, better representation of the converging and diverging multichannel network by using subgrid solvers or downscaling techniques in multichannel rivers is needed to improve errors in regional to global-scale models.
(502617) James Withers
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.
The Gravitational Wave Observatory Designer: Sensitivity Limits of Spaceborne Detectors
Creators: name: Barke, Simon
name: Wang, Yan
name: Delgado, Juan Jose Esteban
name: Tröbs, Michael
name: Heinzel, Gerhard
name: Danzmann, Karsten
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences
subject: J.2

description: The most promising concept for low frequency gravitational wave observatories are laser interferometric detectors in space. It is usually assumed that the noise floor for such a detector is dominated by optical shot noise in the signal readout. For this to be true, a careful balance of mission parameters is crucial to keep all other parasitic disturbances below shot noise. We developed a web application that uses over 30 input parameters and considers many important technical noise sources and noise suppression techniques. It optimizes free parameters automatically and generates a detailed report on all individual noise contributions. Thus you can easily explore the entire parameter space and design a realistic gravitational wave observatory. In this document we describe the different parameters, present all underlying calculations, and compare the final observatory's sensitivity with astrophysical sources of gravitational waves. We use as an example parameters currently assumed to be likely applied to a space mission to be launched in 2034 by the European Space Agency. The web application itself is publicly available on the Internet at http://spacegravity.org/designer.
description: 36 pages, 20 figures