cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Social Sciences and Humanities Open Marketplace: contextualising digital resources in a registry
Creators: name: Barbot, Laure
name: Battaner Moro, Elena
name: Buddenbohm, Stefan
name: Concordia, Cesare
name: Dolinar, Maja
name: Ďurčo, Matej
name: Gray, Edward
name: Grisot, Cristina
name: Illmayer, Klaus
name: Kirnbauer, Martin
name: Kleemola, Mari
name: König, Alexander
name: Kurzmeier, Michael
name: McGillivray, Barbara
name: Parente Boavida, Clara
name: Schuster, Christian
name: Vipavc Brvar, Irena
name: Wnuk, Magdalena
Publisher: name: Zenodo
Year: 2023
Subjects: Paper
Poster
catalogue
EOSC
Research Infrastructures
tools
services
database creation
management
and analysis
digital research infrastructures development and analysis
metadata standards
systems
and methods
sustainable procedures
Library & information science

description: The SSH Open Marketplace is a discovery portal which pools and contextualises resources for Social Sciences and Humanities research communities: tools, services, training materials, datasets, publications and workflows. This poster presents how this service can provide insights into the use of tools, methods and standards in the DH research communities.
On the connections between symmetries and conservation rules of dynamical systems
Creators: name: Cicogna, Giampaolo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 34A05, 37C80

description: The strict connection between Lie point-symmetries of a dynamical system and its constants of motion is discussed and emphasized, through old and new results. It is shown in particular how the knowledge of a symmetry of a dynamical system can allow to obtain conserved quantities which are invariant under the symmetry. In the case of Hamiltonian dynamical systems it is shown that, if the system admits a symmetry of "weaker" type (specifically, a λ or a Λ-symmetry), then the generating function of the symmetry is not a conserved quantity, but the deviation from the exact conservation is "controlled" in a well defined way. Several examples illustrate the various aspects.
description: 13 pages, no fig
On graphs with no induced subdivision of $K_4$
Creators: name: Lévêque, Benjamin
name: Maffray, Frédéric
name: Trotignon, Nicolas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We prove a decomposition theorem for graphs that do not contain a subdivision of $K_4$ as an induced subgraph where $K_4$ is the complete graph on four vertices. We obtain also a structure theorem for the class $\cal C$ of graphs that contain neither a subdivision of $K_4$ nor a wheel as an induced subgraph, where a wheel is a cycle on at least four vertices together with a vertex that has at least three neighbors on the cycle. Our structure theorem is used to prove that every graph in $\cal C$ is 3-colorable and entails a polynomial-time recognition algorithm for membership in $\cal C$. As an intermediate result, we prove a structure theorem for the graphs whose cycles are all chordless.
Planning of integrated mobility-on-demand and urban transit networks
Creators: name: Kumar, Pramesh
name: Khani, Alireza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We envision a multimodal transportation system where Mobility-on-Demand (MoD) service is used to serve the first mile and last mile of transit trips. For this purpose, the current research formulates an optimization model for designing an integrated MoD and urban transit system. The proposed model is a mixed-integer non-linear programming model that captures the strategic behavior of passengers in a multimodal network through a passenger assignment model. It determines which transit routes to operate, the frequency of the operating routes, the fleet size of vehicles required in each transportation analysis zone to serve the demand, and the passenger flow on both road and transit networks. A Benders decomposition approach with several enhancements is proposed to solve the given optimization program. Computational experiments are presented for the Sioux Falls multimodal network. The results show a significant improvement in the congestion in the city center with the introduction and optimization of an integrated transportation system. The proposed design allocates more vehicles to the outskirt zones in the network (to serve the first mile and last mile of transit trips) and more frequency to the transit routes in the city center. The integrated system significantly improves the share of transit passengers and their level of service in comparison to the base optimized transit system. The sensitivity analysis of the bus and vehicle fleet shows that increasing the number of buses has more impact on improving the level of service of passengers compared to increasing the number of MoD vehicles. Finally, we provide managerial insights for deploying such multimodal service.
description: 39 pages, 6 figures
Communication Analysis through Visual Analytics: Current Practices, Challenges, and New Frontiers
Creators: name: Fischer, Maximilian T.
name: Dennig, Frederik L.
name: Seebacher, Daniel
name: Keim, Daniel A.
name: El-Assady, Mennatallah
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The automated analysis of digital human communication data often focuses on specific aspects such as content or network structure in isolation. This can provide limited perspectives while making cross-methodological analyses, occurring in domains like investigative journalism, difficult. Communication research in psychology and the digital humanities instead stresses the importance of a holistic approach to overcome these limiting factors. In this work, we conduct an extensive survey on the properties of over forty semi-automated communication analysis systems and investigate how they cover concepts described in theoretical communication research. From these investigations, we derive a design space and contribute a conceptual framework based on communication research, technical considerations, and the surveyed approaches. The framework describes the systems' properties, capabilities, and composition through a wide range of criteria organized in the dimensions (1) Data, (2) Processing and Models, (3) Visual Interface, and (4) Knowledge Generation. These criteria enable a formalization of digital communication analysis through visual analytics, which, we argue, is uniquely suited for this task by tackling automation complexity while leveraging domain knowledge. With our framework, we identify shortcomings and research challenges, such as group communication dynamics, trust and privacy considerations, and holistic approaches. Simultaneously, our framework supports the evaluation of systems and promotes the mutual exchange between researchers through a structured common language, laying the foundations for future research on communication analysis.
description: 11 pages, 2 tables, 1 figure
Discovery of GeV Emission from the Circinus galaxy with the Fermi-LAT
Creators: name: Hayashida, Masaaki
name: Stawarz, Lukasz
name: Cheung, Chi C.
name: Bechtol, Keith
name: Madejski, Greg M.
name: Ajello, Marco
name: Massaro, Francesco
name: Moskalenko, Igor V.
name: Strong, Andrew
name: Tibaldo, Luigi
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report the discovery of gamma-ray emission from the Circinus galaxy using the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope. Circinus is a nearby (~4 Mpc) starburst with a heavily obscured Seyfert-type active nucleus, bipolar radio lobes perpendicular to the spiral disk, and kpc-scale jet-like structures. Our analysis of 0.1-100 GeV events collected during 4 years of LAT observations reveals a significant (~ 7.3 sigma) excess above the background. We find no indications of variability or spatial extension beyond the LAT point-spread function. A power-law model used to describe the 0.1-100 GeV gamma-ray spectrum yields a flux of (18.8+/-5.8)x10^{-9} ph cm^{-2} s^{-1} and photon index 2.19+/-0.12, corresponding to an isotropic gamma-ray luminosity of 3 x 10^{40} erg s^{-1}. This observed gamma-ray luminosity exceeds the luminosity expected from cosmic-ray interactions in the interstellar medium and inverse Compton radiation from the radio lobes. Thus the origin of the GeV excess requires further investigation.
description: 7 pages, 7 figures, accepted for publication in the Astrophysical Journal
Non-monotonic dynamic correlations beneath the surface of glass-forming liquids
Creators: name: Peng, Hailong
name: Liu, Huashan
name: Voigtmann, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Collective motion over increasing length scales is a signature of the vitrification process of liquids. We demonstrate the emergence of distinct static and dynamic length scales probed near the free surface in fully equilibrated glass-forming liquid films, and their connection to the bulk properties of the system. In contrast to a monotonically growing static correlation length, the dynamic correlation length that measures the extent of surface-dynamics acceleration into the bulk, displays a striking non-monotonic temperature evolution that is robust also against changes in detailed interatomic interaction. The maximum of dynamic correlations defines a cross-over temperature $T_*$ that we show to agree with a morphological change of cooperative rearrangement regions (CRR) of fast particles in the bulk liquids. The cross-over occurs at a temperature larger than the critical temperature Tc of mode-coupling theory (MCT). We link it to the point where fast-particle motion decouples from structural relaxation that can be defined rigorously within a recent extension of MCT, the stochastic $β$-relaxation theory (SBR).
Computer Simulation of Polymer Conformation. II. Distribution Function for Polymers with Excluded Volume
Creators: name: Stellman, Steven D.
name: Gans, Paul J.
Publisher: name: Columbia University
Year: 1972
Subjects: subject: Microchemistry
subject: Polymers
subject: Mathematics
subject: FOS: Mathematics

description: Numerical distributions of end-to-end distances were generated by a Monte Carlo method for hard-sphere off-lattice polymers of length N = 20, 40, 60, 80, 98, and 298 atoms. Comparison by xz tests against five recently proposed theoretical distribution functions showed that for N = 80 and N = 98, the data could be described, with 95% confidence, by the equation f(r) = exp[ -(ar2 + br + c)], where a and b are fitted parameters and c is a normalization constant. For N = 298, limitations of sample size lead to lower confidence limits (about 80%), but good fit. The above equation, and not its gaussian counterpart exp( -cr^2), is probably the limiting distribution function. The function accurately predicts the 1st through 12th observed moments at all chain lengths.
Towards Autonomous Pipeline Inspection with Hierarchical Reinforcement Learning
Creators: name: Botteghi, Nicolò
name: Grefte, Luuk
name: Poel, Mannes
name: Sirmacek, Beril
name: Brune, Christoph
name: Dertien, Edwin
name: Stramigioli, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Inspection and maintenance are two crucial aspects of industrial pipeline plants. While robotics has made tremendous progress in the mechanic design of in-pipe inspection robots, the autonomous control of such robots is still a big open challenge due to the high number of actuators and the complex manoeuvres required. To address this problem, we investigate the usage of Deep Reinforcement Learning for achieving autonomous navigation of in-pipe robots in pipeline networks with complex topologies. Moreover, we introduce a hierarchical policy decomposition based on Hierarchical Reinforcement Learning to learn robust high-level navigation skills. We show that the hierarchical structure introduced in the policy is fundamental for solving the navigation task through pipes and necessary for achieving navigation performances superior to human-level control.
Access to Palliative Care
Creators: name: Foe, Gabriella
Publisher: name: Voices in Bioethics
Year: 2014

description: Increasingly, there has been a push for better access to palliative care. It could be the result of the baby boomer generation reaching the end-of-life stages, recent euthanasia legalization (for children in the Netherlands, and for adults in Quebec, Canada), or for other reasons. Regardless, medical associations and health organizations are asking for more funding from governments to make palliative care more accessible to those who are dying. In places where physician-assisted suicide and/or euthanasia have been legalized, it is important that dying patients do not feel pressured to choose to end their lives due to lack of access to palliative care. In places where such procedures are not legalized, it is ever more important to attend to and relieve the unnecessary pain experienced at the end of life. According to BBC News, the lack of access to pain relief for those who are dying is a public health emergency: many in developing countries (without access to physician-assisted suicide or euthanasia) are “throwing themselves in front of trucks to escape pain.” While governments in developing countries are afraid to provide palliative care because they do not want their citizens addicted to morphine, the topic surrounding access to palliative care in Canada revolves around the lack of national standard. Funding for palliative care programs vary between Canadian provinces. It seems that lack of government funding and distribution is partly due to ignorance and negative attitudes toward palliative care. These attitudes must be changed to develop an acceptable standard of care for pain management. The distinction between palliative care, physician-assisted suicide, and euthanasia seem to still be ambiguous for the public and some medical students or professionals; education materials to demystify misconceptions must be developed. Medics in the developing world do not receive any palliative care training; medical students in 10 of 17 Canadian medical schools receive less than 10 hours of training in pain management. This lack of training must be addressed if physicians are to provide acceptable care for pain management for those at the end of life. Better attitudes toward and increased access to palliative care are required to ensure that the percentage of our population who are vulnerable are adequately cared for, and shown respect and dignity at the end of their lives. This is also necessary to ensure that they do not feel pressured to forcibly end their lives, whether by committing suicide (i.e. throwing themselves in front of a bus) or through physician-assisted suicide or euthanasia.
description: Voices in Bioethics, Archives (2014-2015)
Susceptibility to Image Resolution in Face Recognition and Trainings Strategies
Creators: name: Knoche, Martin
name: Hörmann, Stefan
name: Rigoll, Gerhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Face recognition approaches often rely on equal image resolution for verifying faces on two images. However, in practical applications, those image resolutions are usually not in the same range due to different image capture mechanisms or sources. In this work, we first analyze the impact of image resolutions on face verification performance with a state-of-the-art face recognition model. For images synthetically reduced to $5\,\times\,5$ px resolution, the verification performance drops from $99.23\%$ increasingly down to almost $55\%$. Especially for cross-resolution image pairs (one high- and one low-resolution image), the verification accuracy decreases even further. We investigate this behavior more in-depth by looking at the feature distances for every 2-image test pair. To tackle this problem, we propose the following two methods: 1) Train a state-of-the-art face-recognition model straightforwardly with $50\%$ low-resolution images directly within each batch. 2) Train a siamese-network structure and add a cosine distance feature loss between high- and low-resolution features. Both methods show an improvement for cross-resolution scenarios and can increase the accuracy at very low resolution to approximately $70\%$. However, a disadvantage is that a specific model needs to be trained for every resolution pair. Thus, we extend the aforementioned methods by training them with multiple image resolutions at once. The performances for particular testing image resolutions are slightly worse, but the advantage is that this model can be applied to arbitrary resolution images and achieves an overall better performance ($97.72\%$ compared to $96.86\%$). Due to the lack of a benchmark for arbitrary resolution images for the cross-resolution and equal-resolution task, we propose an evaluation protocol for five well-known datasets, focusing on high, mid, and low-resolution images.
description: 19 pages, 15 figures, 2 tables
Taxpayers Funding Sex Change
Creators: name: Eshikena, Marilyn
Publisher: name: Voices in Bioethics
Year: 2014

description: When convicted murderer Robert Kosilek sued the commissioner of the Massachusetts Department of Corrections for refusing to provide major sex reassignment surgery to treat his severe gender identity disorder, Candace Ogonowski created the petition “Stop the taxpayer funded sex change operation” on change.org. Despite the petition and the defense arguments during Kosilek’s trial this January, the U.S. Circuit Court of Appeals ordered that the state is compelled to provide Kosilek the sex change he desires. Although the specifics of the Kosilek case yielded talking points regarding justice in the realm of medical procedures for inmates, the government had refused Medicaid payments for surgeries deemed medically unnecessary until now. The new ruling, removing sex reassignment surgeries from the list of Medicaid ineligible procedures, came as a result of a 74 year-old man’s request for genital excavation in order to obtain the semblance of a vagina. Although there is no general consensus among medical professionals regarding the necessity of sex reassignment surgery to treat gender identity disorder, this ruling may serve to validate this procedure. But as many frowned at the initial Kosilek ruling, there are a number of taxpayers that will not find this development favorable.
description: Voices in Bioethics, Archives (2014-2015)
Ultra-low-noise Microwave to Optics Conversion in Gallium Phosphide
Creators: name: Stockill, Robert
name: Forsch, Moritz
name: Hijazi, Frederick
name: Beaudoin, Grégoire
name: Pantzas, Konstantinos
name: Sagnes, Isabelle
name: Braive, Rémy
name: Gröblacher, Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Mechanical resonators can act as excellent intermediaries to interface single photons in the microwave and optical domains due to their high quality factors. Nevertheless, the optical pump required to overcome the large energy difference between the frequencies can add significant noise to the transduced signal. Here we exploit the remarkable properties of thin-film gallium phosphide to demonstrate bi-directional on-chip conversion between microwave and optical frequencies, realized by piezoelectric actuation of a Gigahertz-frequency optomechanical resonator. The large optomechanical coupling and the suppression of two-photon absorption in the material allows us to operate the device at optomechanical cooperativities greatly exceeding one. Alternatively, when using a pulsed upconversion pump, we demonstrate that we induce less than one thermal noise phonon. We include a high-impedance on-chip matching resonator to mediate the mechanical load with the 50-Ohm source. Our results establish gallium phosphide as a versatile platform for ultra-low-noise conversion of photons between microwave and optical frequencies.
Supplementary Tables - Epidemiological and clinical characteristics of early COVID-19 cases in the United Kingdom
Creators: name: Boddington, Nicki
Publisher: name: figshare
Year: 2020
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: This document provides the Supplementary Tables for the publication - Epidemiological and clinical characteristics of early COVID-19 cases in the United Kingdom published by WHO Bulletin
Generalized notions of symmetry of ODE's and reduction procedures
Creators: name: Cicogna, Giampaolo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This paper describes the notion of σ-symmetry, which extends the one of λ-symmetry, and its application to reduction procedures of systems of ordinary differential equations and of dynamical systems as well. We also consider orbital symmetries, which give rise to a different form of reduction of dynamical systems. Finally, we discuss how dynamical systems can be transformed into higher-order ordinary differential equations, and how these symmetry properties of the dynamical systems can be transferred into reduction properties of the corresponding ordinary differential equations. Many examples illustrate the various situations.
description: 14 pages, no fig., Math. Meth. Appl. Sci. (ICNAAM Proc.), to appear
Tailored Ion Beam for Precise Color Center Creation
Creators: name: Tobalina, A.
name: Munuera-Javaloy, C.
name: Torrontegui, E.
name: Muga, J. G.
name: Casanova, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a unitary quantum control scheme that produces a highly monochromatic ion beam from a Paul trap. Our protocol is implementable by supplying the segmented electrodes with voltages of the order of Volts, which mitigates the impact of fluctuating voltages in previous designs and leads to a low-dispersion beam of ions. Moreover, our proposal does not rely on sympathetically cooling the ions, which bypasses the need of loading different species in the trap -- namely, the propelled ion and, e.g., a $^{40}$Ca$^+$ atom able to exert sympathetic cooling -- incrementing the repetition rate of the launching procedure. Our scheme is based on an invariant operator linear in position and momentum, which enables us to control the average extraction energy and the outgoing momentum spread. In addition, we propose a sequential operation to tailor the transversal properties of the beam before the ejection to minimize the impact spot and to increase the lateral resolution of the implantation.
Magnetohydrodynamic simulations of the elliptical instability in triaxial ellipsoids
Creators: name: Cébron, David
name: Bars, Michael Le
name: Maubert, Pierre
name: Gal, Patrice Le
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The elliptical instability can take place in planetary cores and stars elliptically deformed by gravitational effects, where it generates large-scale three-dimensional flows assumed to be dynamo capable. In this work, we present the first magneto-hydrodynamic numerical simulations of such flows, using a finite-element method. We first validate our numerical approach by comparing with kinematic and dynamic dynamos benchmarks of the literature. We then systematically study the magnetic field induced by various modes of the elliptical instability from an imposed external field in a triaxial ellipsoidal geometry, relevant in a geo- and astrophysical context. Finally, in tidal induction cases, the external magnetic field is suddenly shut down and the decay rates of the magnetic field are systematically reported.
Trapping photons on the line: controllable dynamics of a quantum walk
Creators: name: Xue, P.
name: Qin, H.
name: Tang, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a coined quantum walk over ten steps in a one-dimensional network of linear optical elements. By applying single-point phase defects, the translational symmetry of an ideal standard quantum walk is broken resulting in localization effect in a quantum walk architecture. We furthermore investigate how the level of phase due to single-point phase defects and coin settings influence the strength of the localization signature.
description: 5 pages, 6 figures
Symplectic No-core Shell-model Approach to Intermediate-mass Nuclei
Creators: name: Tobin, G. K.
name: Ferriss, M. C.
name: Launey, K. D.
name: Dytrych, T.
name: Draayer, J. P.
name: Dreyfuss, A. C.
name: Bahri, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a microscopic description of nuclei in an intermediate-mass region, including the proximity to the proton drip line, based on a no-core shell model with a schematic many-nucleon long-range interaction with no parameter adjustments. The outcome confirms the essential role played by the symplectic symmetry to inform the interaction and the winnowing of shell-model spaces. We show that it is imperative that model spaces be expanded well beyond the current limits up through fifteen major shells to accommodate particle excitations that appear critical to highly-deformed spatial structures and the convergence of associated observables.
description: 9 pages, 8 figures
On the Dynamics and Origin of Haumea's Moons
Creators: name: Ćuk, Matija
name: Ragozzine, Darin
name: Nesvorný, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The dwarf planet Haumea has two large satellites, Namaka and Hi'iaka, which orbit at relatively large separations. Both moons have significant eccentricities and inclinations, in a pattern that is consistent with a past orbital resonance (Ragozzine and Brown, 2009). Based on our analysis, we find that the present system is not consistent with satellite formation close to the primary and tidal evolution though mean-motion resonances. We propose that Namaka experienced only limited tidal evolution, leading to the mutual 8:3 mean-motion resonance which redistributed eccentricities and inclinations between the moons. This scenario requires that the original orbit of Hi'iaka was mildly eccentric; we propose that this eccentricity was either primordial or acquired though encounters with other TNOs. Both dynamical stability and our preferred tidal evolution model imply that the moons' masses are only about one half of previously estimated values, suggesting high albedos and low densities. As the present orbits of the moons strongly suggest formation from a flat disk close to their present locations, we conclude that Hi'iaka and Namaka may be second-generation moons, formed after the breakup of a past large moon, previously proposed as the parent body of the Haumea family (Schlichting and Sari, 2009). We derive plausible parameters of that moon, consistent with the current models of Haumea's formation (Leinhardt et al, 2010). An interesting implication of this hypothesis is that Hi'iaka and Namaka may orbit retrograde with respect to Haumea's spin. Retrograde orbits of Haumea's moons would be in full agreement with available observations and our dynamical analysis, and could provide a unique confirmation the "disrupted satellite" scenario for the origin of the family.
description: Accepted for The Astronomical Journal
The Covid-19 pandemic and the reordering of EU fiscal governance
Creators: name: Capati, Andrea
Publisher: name: Zenodo
Year: 2023
Subjects: COVID-19 pandemic
emergency politics
European Council
general regime of conditionality (GRC)
new intergovernmentalism
Recovery and Resilience Facility (RRF)

description: This paper aims to assess the mode of EU fiscal governance that prevailed in the EU's response to the COVID-19 pandemic. To do so, it examines the role of the European Council in the policymaking process for the establishment of two innovative instruments with fiscal implications for the EU – the Recovery and Resilience Facility (RRF) and the general regime of conditionality (GRC) for the protection of the Union's budget, both adopted through the ordinary legislative procedure (OLP) of the supranational system. Combining insights from the 'new intergovernmentalism' and the 'emergency politics' literatures, the paper argues that, in times of emergency, consensus and deliberation become the guiding norms of European integration through the leading role of the European Council even in the context of supranational policymaking. The paper shows that in both cases the European Council exercised quasi-legislative decision-making powers explicitly denied to it by the Treaties, securing a series of political compromises on the two instruments that limited the role of other EU institutions. This contributes to turning the consolidated post-Maastricht paradox of 'integration without supranational policymaking' into the new paradox of 'intergovernmental integration within supranational policymaking'.
BL Lacertae identifications in a ROSAT-selected sample of Fermi unidentified objects
Creators: name: Masetti, N.
name: Sbarufatti, B.
name: Parisi, P.
name: Jimenez-Bailon, E.
name: Chavushyan, V.
name: Vogt, F. P. A.
name: Sguera, V.
name: Stephen, J. B.
name: Palazzi, E.
name: Bassani, L.
name: Bazzano, A.
name: Fiocchi, M.
name: Galaz, G.
name: Landi, R.
name: Malizia, A.
name: Minniti, D.
name: Morelli, L.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The optical spectroscopic followup of 27 sources belonging to a sample of 30 high-energy objects selected by positionally cross correlating the first Fermi/LAT Catalog and the ROSAT All-Sky Survey Bright Source Catalog is presented here. It has been found or confirmed that 25 of them are BL Lacertae objects (BL Lacs), while the remaining two are Galactic cataclysmic variables (CVs). This strongly suggests that the sources in the first group are responsible for the GeV emission detected with Fermi, while the two CVs most likely represent spurious associations. We thus find an 80% a posteriori probability that the sources selected by matching GeV and X-ray catalogs belong to the BL Lac class. We also show suggestions that the BL Lacs selected with this approach are probably high-synchrotron-peaked sources and in turn good candidates for the detection of ultra-high-energy (TeV) photons from them.
description: 16 pages, 9 figures, 4 tables, one appendix, accepted for publication on A&A, main journal. Tables 1-3 and Figures 2-6 will only be published in the electronic edition of the journal
Conformal field theory from lattice fermions
Creators: name: Osborne, Tobias J.
name: Stottmeister, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Operator Algebras (math.OA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T17, 81T05, 81T25, 81T27, 81-10, 42C40

description: We provide a rigorous lattice approximation of conformal field theories given in terms of lattice fermions in 1+1-dimensions, focussing on free fermion models and Wess-Zumino-Witten models. To this end, we utilize a recently introduced operator-algebraic framework for Wilson-Kadanoff renormalization. In this setting, we prove the convergence of the approximation of the Virasoro generators by the Koo-Saleur formula. From this, we deduce the convergence of lattice approximations of conformal correlation functions to their continuum limit. In addition, we show how these results lead to explicit error estimates pertaining to the quantum simulation of conformal field theories.
description: 71 pages, 1 figure; further comparison with other approaches, clarified relation with Temperley-Lieb algebras, slightly expanded published version including comment on modified Koo-Saleur formula
Concordance between medical records and interview data in correctional facilities
Creators: name: Larson, Elaine L.
Publisher: name: Columbia University
Year: 2014
Subjects: Public health
Medicine

description: Self- administered questionnaires or interviews and medical records are often used as sources of research data; thus it is essential to evaluate their concordance and reliability. The aim of this paper was to assess the concordance between medical and behavioral data obtained from medical records and interview questionnaires in two correctional facilities.
Face Verification System based on Integral Normalized Gradient Image(INGI)
Creators: name: Karthikeyan, V.
name: Divya, M.
name: Chithra, C. K.
name: Priya, K. Manju
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Character identification plays a vital role in the contemporary world of Image processing. It can solve many composite problems and makes humans work easier. An instance is Handwritten Character detection. Handwritten recognition is not a novel expertise, but it has not gained community notice until Now. The eventual aim of designing Handwritten Character recognition structure with an accurateness rate of 100% is pretty illusionary. Tamil Handwritten Character recognition system uses the Neural Networks to distinguish them. Neural Network and structural characteristics are used to instruct and recognize written characters. After training and testing the exactness rate reached 99%. This correctness rate is extremely high. In this paper we are exploring image processing through the Hilditch algorithm foundation and structural characteristics of a character in the image. And we recognized some character of the Tamil language, and we are trying to identify all the character of Tamil In our future works.
Dihadron Fragmentation Functions within the NJL-jet Model
Creators: name: Matevosyan, Hrayr H.
name: Thomas, Anthony W.
name: Bentz, Wolfgang
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dihadron Fragmentation Functions (DFF) provide a vast amount of information on the intricate details of the parton hadronization process. Moreover, they provide a unique access to the "clean" extraction of nucleon transversity parton distribution functions in semi inclusive deep inelastic two hadron production process with a transversely polarised target. The NJL-jet model has been extended for calculations of light and strange quark unpolarised DFFs to pions, kaons and several vector mesons. This is accomplished by using the probabilistic interpretation of the DFFs, and employing the NJL-jet hadronization model in the Monte Carlo simulations that includes the transverse momentum of the produced hadrons. The strong decays of the vector mesons and the subsequent modification of the pseudoscalar meson DFFs are also considered. The resulting pseudoscalar meson DFFs are strongly influenced by the decays of the relevant vector mesons. This is because of the large combinatorial factors involved in counting the number of the hadron pairs that include the decay products. The evolution of the DFFs from the model scale to a typical experimental scale has also been performed.
description: 11 pages, 11 figures
Field Theoretical Study of Disorder in Non-Hermitian Topological Models
Creators: name: Moustaj, Anouar
name: Eek, Lumen
name: Smith, Cristiane Morais
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Non-Hermitian systems have provided a rich platform to study unconventional topological phases.These phases are usually robust against external perturbations that respect certain symmetries of thesystem. In this work, we provide a new method to analytically study the effect of disorder, usingtools from quantum field theory applied to discrete models around phase-transition points. Weinvestigate two different one-dimensional models, the paradigmatic non-Hermitian SSH model andas-wave superconductor with imbalanced pairing. These analytic results are compared to numericalsimulations in the discrete models. An universal behavior is found for the two investigated models,namely that the systems are driven from a topological to a trivial phase for disorder strengths equalto about four times the energy scale of the model.
description: 6 pages, 2 figures, article. Supplemental material: 5 pages, 1 figure
Self-consistent approach for Bose-condensed atoms in optical lattices
Creators: name: Yukalov, V. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Bose atoms in optical lattices are considered at low temperatures and weak interactions, when Bose-Einstein condensate is formed. A self-consistent approach, based on the use of a representative statistical ensemble, is employed, ensuring a gapless spectrum of collective excitations and the validity of conservation laws. In order to show that the approach is applicable to both weak and tight binding, the problem is treated in the Bloch as well as in the Wannier representations. Both these ways result in similar expressions that are compared for the self-consistent Hartree-Fock-Bogolubov approximation. A convenient general formula for the superfluid fraction of atoms in an optical lattice is derived.
description: 16 pages
Are You and Your Significant Other Compatible?
Creators: name: Foe, Gabriella
Publisher: name: Voices in Bioethics
Year: 2014

description: Compatibility is of great importance when it comes to relationships. After all, every match-making website asks many questions, from personality types to habits to pet peeves, in order to determine whether or not two people will be a good match. But there is another type of compatibility criteria that is becoming increasingly important: your genetic material. ThePerfect46 is a genetics company that claims to determine whether you are with “the one,” according to your genes. They focus on ensuring that your offspring will be free from known genetically heritable diseases. Does this sound plausible? Very much so—but not yet. theperfect46.com is not a real company’s web-page, but a site to promote the film The Perfect 46. This film raises many relevant ethical issues that our society will have to face in the near future. How much responsibility, if at all, do we owe the future generation to ensure that they are free of known genetically heritable diseases? Is this another form of eugenics? Are we playing God? How much should we consider genetic compatibility when choosing our significant other? Is there a duty to consider it at all? These are all important questions that our society will have to answer as genetic technology rapidly advances to do what was thought to be impossible not too long ago. Where is the boundary? How should it be determined? This film has been released in the United Kingdom and parts of United States. It will be shown in New York City on May 19, 2014 at the SOHO International Film Festival. Check it out and let us know your thoughts and opinions!
description: Voices in Bioethics, Archives (2014-2015)
Structure of guanosine-3′,5′-cytidine monophosphate. I. Semi-empirical potential energy calculations and model-building
Creators: name: Stellman, Steven D.
name: Hingerty, B.
name: Broyde, S. B.
name: Subramanian, E.
name: Sato, T.
name: Langridge, R.
Publisher: name: Columbia University
Year: 1973
Subjects: subject: Biochemistry
subject: Microchemistry
subject: Polymers
subject: Genetics
subject: FOS: Biological sciences

description: The conformation and packing scheme for guanosine-3’,5’-cytidine monophosphate, GpC, were computed by minimizing the classical potential energy. The lowest energy conformation of the isolated molecule had dihedral angles in the range of helical RNA’s, and the sugar pucker was C3‘ endo. This was used as the starting conformation in a packing search over orientation space, the dihedral angles being flexible in this step also. The packing search was restricted by constraints from our x-ray data, namely, (1) the dimensions of the monoclinic unit cell and its pseudo-C2 symmetry (the real space group is P21), (2) t,he location of the phosphorous atom, and (3) the orientation of the bases. In addition, a geometric function was devised to impose Watson-Crick base pairing. Thus, a trial structure could be sought without explicit inclusion of intermolecular potentials. An interactive computer graphics system was used for visualizing the calculated structures. The packing searches yielded two lowest energy schemes in which the molecules had the same conformation (similar to double-helical RNA) but different orientations within the unit cell. One of these was refined by standard x-ray methods to a discrepancy index of 14.4% in the C2 pseudocell. This served as the starting structure for the subsequent refinement in the real P21 cell.
Dramatic changes in electronic structure revealed by fractionally charged nuclei
Creators: name: Cohen, Aron J.
name: Mori-Sánchez, Paula
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Discontinuous changes in the electronic structure upon infinitesimal changes to the Hamiltonian are demonstrated. Remarkably, these are revealed in one and two electron molecular systems if the realm of the nuclear charge is extended to be fractional. Dramatic changes in the electron density from full configuration interaction are observed in real space illustrating key intricacies of electronic structure including the transfer, hopping and removal of electrons. Physically, this is due to the particle nature of electrons and manifests itself theoretically as a diverging linear density response function or an energy derivative discontinuity that occurs at constant number of electrons. This is essential to correctly describe real physical processes, from chemical reactions to electron transport and metal-insulator transitions. The dramatic errors of DFT are seen in real space as this physics is missing from currently used approximations and poses a great challenge for the development of new electronic structure methods.
description: 5 pages, 4 figures
Data Management Strategy - Implementing while designing
Creators: name: Della Chiesa, Stefano
Publisher: name: Zenodo
Year: 2023
Subjects: Research Data Management
Forschungsdatenmanagement
Research Data Strategy
SaxFDM-Tagung 2023

description: RDM is strategically crucial for any research institution. It assumes a position of paramount importance, as it directly contributes to the efficient management and maximisation of the institution's valuable asset, the Research Data. Therefore, some aspects are crucial, such as:
1. The institution's organisation needs to embed data stewardship into a strategic
management position.
2. Bridging the gap across institutions´ silos.
3. Establish triggers to enable the adoption of routines and best practices.
4. Focus on Research Project Management over DMP.
 
This poster was presented at the 4. Sächsische FDM-Tagung. 
Link to the abstract
Remote quantum-safe authentication of entities with physical unclonable functions
Creators: name: Nikolopoulos, Georgios M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Physical unclonable functions have been shown a useful resource of randomness for implementing various cryptographic tasks including entity authentication. All of the related entity authentication protocols that have been discussed in the literature so far, either they are vulnerable to an emulation attack, or they are limited to short distances. Hence, quantum-safe remote entity authentication over large distances remains an open question. In the first part of this work we discuss the requirements that an entity authentication protocol has to offer in order to be useful for remote entity authentication in practice. Subsequently, we propose a protocol, which can operate over large distances, and offers security against both classical and quantum adversaries. The proposed protocol relies on standard techniques, it is fully compatible with the infrastructure of existing and future photonic networks, and it can operate in parallel with other quantum protocols, including QKD protocols.
description: close to the version published in Photonics
Ridding Ourselves of Noxious “Death Panel” Discourse
Creators: name: Ringel, Lillian
Publisher: name: Voices in Bioethics
Year: 2014

description: On Friday, April 11, 2014, Senator Tom Coburn (R-OK), along with co-sponsors Senators Chris Coons (D-DE) and Richard Blumenthal (D-CT), introduced the “Medicare Choices Empowerment and Protection Act" (S. 2240), which would pay eligible Medicare beneficiaries if they create an advance directive: $75 if they create an A.D. online, and $50 if they create an A.D. manually. The bill would also create a system to store the advance directives to make them easily accessible for health care proxies, health care providers, and beneficiaries. Beneficiaries would be able to register their advance directives during their initial enrollment in Medicare Part C (Medicare Advantage). In a press release, Sen. Coburn said the following: "Advance directives are a valuable, voluntary tool that offers patients the ability to protect patients’ future health care preferences or to specify someone to act on their behalf. This bill would encourage their adoption by Medicare beneficiaries and is intended to start a discussion about how best to move this policy forward. We welcome constructive comments from stakeholders to improve this plan and to better encourage the voluntary adoption of advance directives by Medicare beneficiaries that can be accessible in real-time by their physicians and hospitals." Sen. Coons also added: "Every American deserves the opportunity to live his or her final days with dignity," Senator Coons said. "Too many Americans leave their end-of-life care to chance or to the preferences of distraught family members. This bill will help more Americans ensure they are the ones making the choices about their end-of-life care, reducing confusion and empowering more Americans to spend their final days and hours on their own terms." Though advance directives are not a panacea for end-of-life decision-making, efforts to encourage advance directives recognizes, at the very least, the importance of end-of-life contemplation.
description: Voices in Bioethics, Archives (2014-2015)