cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metadata Fields and Quality Criteria - XAS Reference Database under DAPHNE4NFDI
Creators: name: Gaur, Abhijeet
name: Paripsa, Sebastian
name: Förste, Frank
name: Doronkin, Dmitry
name: Malzer, Wolfgang
name: Schlesiger, Christopher
name: Kanngießer, Birgit
name: Lützenkirchen-Hecht, Dirk
name: Welter, Edmund
name: Grunwaldt, Jan-Dierk
Publisher: name: Technische Informationsbibliothek Open Publishing (TIB Open Publishing)
Year: 2023
Subjects: X-ray absorption spectroscopy
database
metadata
quality criteria

description: X-ray absorption spectroscopy is important to analyse solid materials, in particular amorphous materials, disordered or multicomponent materials. Due to its vast application in diverse fields XAS has become an essential tool for studying, e.g., catalytic reactions or battery materials to mention just a few. In the field of XAS, data are often evaluated by comparing them to previously measured or calculated reference spectra [1]. This sets the high requirements concerning both spectral quality and documentation of the measurements. Under DAPHNE4NFDI, we have been working on to set up a XAS reference database including raw and processed data with an interface developed for uploading and evaluating the data. In this context, defining metadata fields about an XAS experiments and documenting this information along with data is essential to make the measured data reusable by any researcher in a similar field and beyond. Another important aspect of a curated database is that users should be able to easily judge the quality and the usability of each data set by looking at the mentioned quality criteria. In the present work, we have discussed and highlighted the importance of metadata fields and quality criteria for the data to be uploaded at the XAS database.
Statistics about Data Shape Use in RDF Data
Creators: name: Lieber, Sven
name: De Meester, Ben
name: Verborgh, Ruben
name: Dimou, Anastasia
Publisher: name: Zenodo
Year: 2020
Subjects: RDF
constraints
SHACL
statistics
data shapes
Open World Assumption
Closed World Assumption

description: The presentation of the poster paper "Statistics about Data Shape Use in RDF Data" presented during the demo/poster session at the International Semantic Web Conference (ISWC) 2020.

 Joint work with Ben De Meester, Anastasia Dimou and Ruben Verborgh. The video of the presentation is available on YouTube: https://www.youtube.com/watch?v=6-OdjYdEpeU
Quantum Dynamics of a Josephson Junction-Driven Cavity Mode System in the Presence of Voltage Bias Noise
Creators: name: Wang, Hui
name: Blencowe, M. P.
name: Armour, A. D.
name: Rimberg, A. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a semiclassical analysis of the average photon number as well as photon number variance (Fano factor $F$) for a Josephson-junction (JJ) embedded microwave cavity system, where the JJ is subject to a fluctuating (i.e. noisy) bias voltage with finite dc average. Through the ac Josephson effect, the dc voltage bias drives the effectively nonlinear microwave cavity mode into an amplitude squeezed state ($F<1$), as has been established previously [A. D. Armour, et al., Phys. Rev. Lett. 111, 247001 (2013)], but bias noise acts to degrade this squeezing. We find that the sensitivity of the Fano factor to bias voltage noise depends qualitatively on which stable fixed point regime the system is in for the corresponding classical nonlinear steady state dynamics. Furthermore, we show that the impact of voltage bias noise is most significant when the cavity is excited to states with large average photon number.
description: 9 pages, 6 figures
A compact atomic beam based system for Doppler-free laser spectroscopy of Strontium atoms
Creators: name: Verma, Gunjan
name: Vishwakarma, Chetan
name: Dharmadhikari, C. V.
name: Rapol, Umakant D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report the construction of a simple, light weight and compact atomic beam spectroscopy cell for Strontium atoms. The cell is built using glass blowing technique and includes a simple Titanium Sublimation Pump for active pumping of the residual and background gases to maintain ultra-high vacuum. Commercially available and electrically heated dispenser source is used to generate the beam of Sr atoms. We perform spectroscopy on the $5s^2\ ^1S_0\longrightarrow 5s\ 5p\ ^1P_1$ transition to obtain a well resolved Doppler free spectroscopic signal for frequency stabilization of the laser source. This design can be easily extended to other alkali and alkaline earth metals.
description: 3 pages, 3 figures
Effective of exercise therapy on functional balance, physical performance and quality of life among patients undergoing hemodialysis: randomized controlled trial
Creators: name: ALKHAQANI, AHMED
Publisher: name: figshare
Year: 2023
Subjects: Nursing not elsewhere classified

description: Background: Patients undergoing hemodialysis suffer from deteriorating physical health, impaired physical function, and have a low quality of life, that explained by insufficient metabolic clearance. To overcome these obstacles, cost-effective strategies must be developed, including exercise as a complement to hemodialysis therapy. Objective: To determine the effectiveness of exercise therapy on functional balance, physical performance, and quality of life among patients undergoing hemodialysis: a randomized controlled trial. Methods: This randomized controlled trial study was carried out on 68 patients with chronic kidney disease undergoing hemodialysis for at least six months and had a medically stable condition who were randomly divided into training (n = 32) exercise therapy and (n = 31) control, groups. The training group participated in 8-week (3 sessions per week) resistance exercise therapy in three sets of 10 repetitions of knee extension, hip flexion, and hip abduction with the use of an elastic band under the supervision of a training physiotherapist and researcher during the first hour of the three routine hemodialysis treatment session per week. But the control group did not experience any intervention. To analyze the data, two-way analysis of variance and Bonferroni statistical tests were used at the significant level of (P = 0.05). Results: 6 Minute-Walk Test (6MWT) (0.013), and in the Physical Activity Scale for the Elderly (PASE) (0.014), and Short Survey Form 36 (SF-36) questionnaires and health-related quality of life (HRQOL) (0.001) had significant improvements in the training group in comparison to the control group from pre to post-test, also physical performance (0.001) was improving as compared with control group (0.89) at (P = 0.05). Conclusion: Resistance exercise therapy interventions for eight weeks effectively improve the physical function and performance, activity levels, and health-related quality of life of patients with chronic kidney disease and undergoing regular hemodialysis compared with a control group.
title: Digital Nomads’ Experiences on the Support of Digital Technologies in Relation to Social Isolation
Creators: name: Mohlin, Alice
name: Chatzipanagiotou, Niki
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: The paper presents digital nomads’ experiences about the support of digital technologies in relation to social isolation. Despite the abundant access to digital technologies for organizational cooperative purposes, the challenge of social isolation constitutes one of the central concerns in nomadicity practices, affecting employees’ choice of working arrangements. To gain further knowledge on the subject, a qualitative interviews with digital nomads in Sweden was conducted, and the data was further interpreted and discussed in relation to concepts of computer-supported cooperative work and the theory of symbolic interactionism. Findings show that digital nomads do not experience the digital technologies they use in their work as supportive in terms of social isolation. They acknowledge the digital technologies as tools for conducting their work, not tools for interacting socially. Collective symbolic meaning is consciously assigned to the different digital technologies. The research contributes theoretically to existing knowledge within the field of computer-supported cooperative work in regard to technology-centered nomadicity as it partly fills the knowledge gap about the support of digital technologies in relation to digital nomads’ social isolation. The research also contributes practically to interested stakeholders in the sense that organizations may not benefit from using digital technologies for social interaction purposes.
Unveiling saturation effects from nuclear structure function measurements at the EIC
Creators: name: Marquet, Cyrille
name: Moldes, Manoel R.
name: Zurita, Pía
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the possibility of extracting a clear signal of non-linear parton saturation effects from future measurements of nuclear structure functions at the Electron-Ion Collider (EIC), in the small-x region. Our approach consists in generating pseudodata for electron-gold collisions, using the running-coupling Balitsky-Kovchegov evolution equation, and in assessing the compatibility of these saturate pseudodata with existing sets of nuclear parton distribution functions (nPDFs), extrapolated if necessary. The level of disagreement between the two is quantified by applying a Bayesian reweighting technique. This allows to infer the parton distributions needed in order to describe the pseudodata, which we find quite different from the actual distributions, especially for sea quarks and gluons. This tension suggests that, should saturation effects impact the future nuclear structure function data as predicted, a successful refitting of the nPDFs may not be achievable, which would unambiguously signal the presence of non-linear effects.
description: 16 pages, 5 figures; small detail updated in the summary for clarification and better understanding
Immediate dense circumstellar environment of supernova progenitors caused by wind acceleration: its effect on supernova light curves
Creators: name: Moriya, Takashi J.
name: Yoon, Sung-Chul
name: Gräfener, Götz
name: Blinnikov, Sergei I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Type IIP supernova progenitors are often surrounded by dense circumstellar media that may result from mass-loss enhancement of the progenitors shortly before their explosions. Previous light-curve studies suggest that the mass-loss rates are enhanced up to ~ 0.1 Msun/yr, assuming a constant wind velocity. However, density of circumstellar media at the immediate stellar vicinity can be much higher than previously inferred for a given mass-loss rate if wind acceleration is taken into account. We show that the wind acceleration has a huge impact when we estimate mass-loss rates from early light curves of Type IIP supernovae by taking SN 2013fs as an example. We perform numerical calculations of the interaction between supernova ejecta and circumstellar media with a constant mass-loss rate but with a beta-law wind velocity profile. We find that the mass-loss rate of the progenitor of SN 2013fs shortly before the explosion, which was inferred to be ~ 0.1 Msun/yr with a constant wind velocity of 10 km/s by a previous light-curve modeling, can be as low as ~ 1e-3 Msun/yr with the same terminal wind velocity of 10 km/s but with a wind velocity profile with beta ~ 5. In both cases, the mass of the circumstellar medium is similar (~ 0.5 Msun). Therefore, the beginning of the progenitor's mass-loss enhancement in our interpretation is ~ 100 years before the explosion, not several years. Our result indicates that the immediate dense environment of Type II supernova progenitors may be significantly influenced by wind acceleration.
description: 5 pages, 4 figures, 1 table, accepted by Monthly Notices of the Royal Astronomical Society Letters
title: Designing with Awareness* Building an Agenda for Worker- and Patient Well-being
Creators: name: Milbak, Tina W.
name: Simonsen, Jakob G.
name: Hansen, Marco B.
name: Møller, Naja L. H.
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: Awareness technologies are a core interest for CSCW: When people pay attention to each other's actions, it reduces the need for active communication required to accomplish the complex, cooperative work, for example, characteristic of hospitals. In Denmark, healthcare workers (HCWs) and patients face challenges with the architectural design of super hospitals. Change of workflows – most importantly, the shift to single-patient rooms in the new super hospitals - is restricted by the fact that HCWs' well-being is at risk when they have to attend to more rooms. Also, the risk of adverse events increases. The patient's well-being is at risk when they feel lonely or even forgotten in a single-patient room. In this paper, we propose an agenda for awareness technologies designed around both worker- and patient well-being. Our proposal is examined through prototyping an awareness technology, iAware. The solution draws together insights from a long-term ethnographic study (+5y) of how to design sensed environments responsibly [Anon]. Today's awareness technologies in hospitals are typically designed from HCWs' perspective. We identified 4 openings for supporting patients' and HCWs' mutual awareness of workflows: 1) progress of 'ward rounds', 2) patient 'visits', 3) patient 'calls', and 4) patient 'mobility.' We end with concluding remarks on how sensed environments can be designed with an agenda of being relevant to HCWs and patients' well-being.
D7.1 – Dissemination & Communication Plan & Activities (v1)
Creators: name: Osimanti, Francesco
name: Ahern, Joanne
name: Simoni, Diego
name: Doulkeridis, Christos
name: Falsetta, Matteo
Publisher: name: Zenodo
Year: 2023

description: The Dissemination & Communication Plan of the MOBISPACES project defines all dissemination activities within the project and it provides the guidelines for the dissemination to be followed by all partners. Ιt details the methodology and the tools to be used for the project’s communication needs, as well as a detailed timeline to adhere to. It is a working document and can be amended as opportunities arise during the course of the project.
 All dissemination activities are designed to: Ensure good internal communication amongst partners, with regular updates on progress and achievements; Increase the MOBISPACES project’s visibility; Share and publicise the project’s objectives and results; Keep stakeholders and partners informed on progress made and milestones reached. This Dissemination & Communication Plan aims to give an overview of the following aspects: 1) Who communicates (the partners); 2) What to communicate (the message); 3) To whom the project communicates (the audience and addressed Stakeholders); 4) Why (awareness raising, increase visibility of the project and make its results and deliverables available to the stakeholders and to the general audience); 5) How to communicate (the methodology behind it, channels and tools); 6) When (timeline). The plan will undergo three formal iterations over the projects’ lifecycle (M12, M24, M36) but it will also be updated and reviewed by partners (when needed) throughout the project lifetime as work progresses and new opportunities for dissemination emerge and are identified.
Plain $s$-wave superconductivity near the magnetic criticality: Enhancement of attractive electron-boson coupling vertex corrections
Creators: name: Tazai, Rina
name: Yamakawa, Youichi
name: Tsuchiizu, Masahisa
name: Kontani, Hiroshi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experiments revealed that the plain $s$-wave state without any sign-reversal emerges in various metals near the magnetic criticality. To understand this counter-intuitive phenomenon, we study the gap equation for the multiorbital Hubbard-Holstein model, by analyzing the vertex correction (VC) due to the higher-order electron-correlation effects. We find that the phonon-mediated orbital fluctuations are magnified by the VC for the susceptibility ($χ$-VC). In addition, the charge-channel attractive interaction is enlarged by the VC for the coupling-constant ($U$-VC), which is significant when the interaction has prominent $q$-dependences so the Migdal theorem fails. Due to both $χ$-VC and $U$-VC, the plain $s$-wave state is caused by the small electron-phonon interaction near the magnetic criticality against the repulsive Coulomb interaction. We find that the direct Coulomb repulsion for the plain $s$-wave Cooper pair is strongly reduced by the "multiorbital screening effect".
description: 10 pages, 10 figures, We explain that the significance of the AL-processes has been confirmed by the recent functional-renormalization-group analysis, in which the higher-order vertex corrections are generated in a systematic and unbiased manner
Questionnaire Onchocerciasis-associated epilepsy, an explorative case-control study with viral metagenomic analysis of Onchocerca volvulus
Creators: name: Robert.Colebunders@Uantwerpen.Be
Publisher: name: Zenodo
Year: 2023
Subjects: Onchocerciasis; epilepsy; nodulectomy; metagenomics

description: Questionnaire Onchocerciasis-associated epilepsy: an explorative case-control study with viral metagenomic analysis of Onchocerca volvulus
Self-interacting inelastic dark matter: A viable solution to the small scale structure problems
Creators: name: Blennow, Mattias
name: Clementz, Stefan
name: Herrero-Garcia, Juan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Self-interacting dark matter has been proposed as a solution to the small-scale structure problems, such as the observed flat cores in dwarf and low surface brightness galaxies. If scattering takes place through light mediators, the scattering cross section relevant to solve these problems may fall into the non-perturbative regime leading to a non-trivial velocity dependence, which allows compatibility with limits stemming from cluster-size objects. However, these models are strongly constrained by different observations, in particular from the requirements that the decay of the light mediator is sufficiently rapid (before Big Bang Nucleosynthesis) and from direct detection. A natural solution to reconcile both requirements are inelastic endothermic interactions, such that scatterings in direct detection experiments are suppressed or even kinematically forbidden if the mass splitting between the two-states is sufficiently large. Using an exact solution when numerically solving the Schrödinger equation, we study such scenarios and find regions in the parameter space of dark matter and mediator masses, and the mass splitting of the states, where the small scale structure problems can be solved, the dark matter has the correct relic abundance and direct detection limits can be evaded.
description: 21 pages, 5 figures, matches version published in JCAP
Type-III and IV interacting Weyl points
Creators: name: Nissinen, J.
name: Volovik, G. E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: 3+1-dimensional Weyl fermions in interacting systems are described by effective quasi-relativistic Green's functions parametrized by a 16 element matrix $e^μ_α$ in an expansion around the Weyl point. The matrix $e^μ_α$ can be naturally identified as an effective tetrad field for the fermions. The correspondence between the tetrad field and an effective quasi-relativistic metric $g_{μν}$ governing the Weyl fermions allows for the possibility to simulate different classes of metric fields emerging in general relativity in interacting Weyl semimetals. According to this correspondence, there can be four types of Weyl fermions, depending on the signs of the components $g^{00}$ and $g_{00}$ of the effective metric. In addition to the conventional type-I fermions with a tilted Weyl cone and type-II fermions with an overtilted Weyl cone for $g^{00}>0$ and respectively $g_{00}>0$ or $g_{00}<0$, we find additional "type-III" and "type-IV" Weyl fermions with instabilities (complex frequencies) for $g^{00}<0$ and $g_{00}>0$ or $g_{00}<0$, respectively. While the type-I and type-II Weyl points allow us to simulate the black hole event horizon at an interface where $g^{00}$ changes sign, the type-III Weyl point leads to effective spacetimes with closed timelike curves.
description: 7 pages; journal version
title: Matters of Data Care: From data-centric to domain-centric patient-centrism in the Health Tech Sector
Creators: name: Avlona, Natalia
name: Shklovski, Irina
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: The increasing digitisation of the healthcare services, has transformed the provision of patient-centric care into data-centric healthcare. Researchers studied the effect of the increasing digitisation of healthcare by focusing on how the data workers in the public health care sector have been asymmetrically affected during this process, showing how care is enacted in the often-invisible human labour in algorithmic systems. In this paper we demonstrate how the value of patient-centrism becomes a multidimensional matter of data care for a diversity of domain experts handling health data. Enactments of patient-centrism are informed by the values and backgrounds of each “data-handler” situated within the values and concepts of their domain expertise. In particular, we demonstrate how patient-centrism manifests as care for data quality, care for data privacy and security and care for accessibility, shaped throughout by differentiated concerns for regulatory compliance.
Fast neutrino conversions: Ubiquitous in compact binary merger remnants
Creators: name: Wu, Meng-Ru
name: Tamborra, Irene
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The massive neutron star (NS) or black hole (BH) accretion disk resulting from NS--NS or NS--BH mergers is dense in neutrinos. We present the first study on the role of angular distributions in the neutrino flavor conversion above the remnant disk. In particular, we focus on "fast" pairwise conversions whose rate depends on the local angular intensity of the electron lepton number carried by neutrinos. Because of the emission geometry and the flux density of $\barν_e$ being larger than that of $ν_e$, fast conversions prove to be a generic phenomenon in NS--NS and NS--BH mergers for physically motivated disturbances in the mean field of flavor coherence. Our findings suggest that, differently from the core-collapse supernova case, fast flavor conversions seem to be unavoidable in compact mergers and could have major consequences for the jet dynamics and the synthesis of elements above the remnant disk.
description: 10 pages, 9 figures, matches the published version
Atomic Precision Advanced Manufacturing for Digital Electronics
Creators: name: Ward, Daniel R.
name: Schmucker, Scott W.
name: Anderson, Evan M.
name: Bussmann, Ezra
name: Tracy, Lisa
name: Lu, Tzu-Ming
name: Maurer, Leon N.
name: Baczewski, Andrew
name: Campbell, Deanna M.
name: Marshall, Michael T.
name: Misra, Shashank
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An exponential increase in the performance of silicon microelectronics and the demand to manufacture in great volumes has created an ecosystem that requires increasingly complex tools to fabricate and characterize the next generation of chips. However, the cost to develop and produce the next generation of these tools has also risen exponentially, to the point where the risk associated with progressing to smaller feature sizes has created pain points throughout the ecosystem. The present challenge includes shrinking the smallest features from nanometers to atoms (10 nm corresponds to 30 silicon atoms). Relaxing the requirement for achieving scalable manufacturing creates the opportunity to evaluate ideas not one or two generations into the future, but at the absolute physical limit of atoms themselves. This article describes recent advances in atomic precision advanced manufacturing (APAM) that open the possibility of exploring opportunities in digital electronics. Doing so will require advancing the complexity of APAM devices and integrating APAM with CMOS.
Opers and nonabelian Hodge: numerical studies
Creators: name: Dumas, Emily
name: Neitzke, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present numerical experiments that test the predictions of a conjecture of Gaiotto-Moore-Neitzke and Gaiotto concerning the monodromy map for opers, the nonabelian Hodge correspondence, and the restriction of Hitchin's hyperkähler metric to the Hitchin section. These experiments are conducted in the setting of polynomial holomorphic differentials on the complex plane, where the predictions take the form of conjectural formulas for the Stokes data and the Hitchin metric tensor. Overall, the results of our experiments support the conjecture.
description: 58 pages, 21 figures; v2: typos corrected and references added; v3: minor corrections and references added/updated
Horndeski Gravity and the Violation of Reverse Isoperimetric Inequality
Creators: name: Feng, Xing-Hui
name: Liu, Hai-Shan
name: Lu, Wen-Tian
name: Lu, H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider Einstein-Horndeski-Maxwell gravity, together with a cosmological constant and multiple Horndeski axions. We construct charged AdS planar black holes in general dimensions where the Horndeski anxions span over the planar directions. We analyse the thermodynamics and obtain the black hole volumes. We show that the reverse isoperimetric inequality can be violated, implying that these black holes can store information more efficiently than the Schwarzschild black hole.
description: Latex, 25 pages, 1 figure, references added
title: Planning for hybrid cooperation - a design driven exploration
Creators: name: Busboom, Juliane
name: Boulus-Rødje, Nina
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: Hybrid work has become a popular in post-pandemic times, helping organisations in attracting/retaining employees by offering greater flexibility and alternative modes of working. Despite the great interest in hybrid cooperation, recent research reveals prevailing challenges with current technologies and practices. In the search for the “right setup” for hybrid cooperation, some research tend to narrowly focus on developing technical solutions for rather isolated problems. In this paper, we wish to problematize these tendencies found in the literature and shortcomings in current technologies and practices, by shedding light on articulation work- an overlooked aspect related to managing hybrid work. The paper presents Collab.ai, a fictional AI-powered calendar and planning tool that re-imagines the planning for hybrid cooperation, followed by three additional artifacts that are aimed at amplifying various aspects of Collab.ai. Using a discursive design approach, the paper and these artifacts are aimed at provoking reflections about future hybrid cooperation tools and practices.
On interpolations from SUSY to non-SUSY strings and their properties
Creators: name: Aaronson, Benedict
name: Abel, Steven
name: Mavroudi, Eirini
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The interpolation from supersymmetric to non-supersymmetric heterotic theories is studied, via the Scherk-Schwarz compactification of supersymmetric 6D theories to 4D. A general modular-invariant Scherk-Schwarz deformation is deduced from the properties of the 6D theories at the endpoints, which significantly extends previously known examples. This wider class of non-supersymmetric 4D theories opens up new possibilities for model building. The full one-loop cosmological constant of such theories is studied as a function of compactification radius for a number of cases, and the following interpolating configurations are found: two supersymmetric 6D theories related by a T-duality transformation, with intermediate 4D maximum or minimum at the string scale; a non-supersymmetric 6D theory interpolating to a supersymmetric 6D theory, with the 4D theory possibly having an AdS minimum; a "metastable" non-supersymmetric 6D theory interpolating via a 4D theory to a supersymmetric 6D theory.
description: 21 pages, 5 figures, improved figure, background and appendix
An Application of Lorentz Invariance Violation in Black Hole Thermodynamics
Creators: name: Li, Guo-Ping
name: Pu, Jin
name: Jiang, Qing-Quan
name: Zu, Xiao-Tao
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we have applied the Lorentz-invariance-violation (LIV) class of dispersion relations (DR) with the dimensionless parameter n = 2 and the "sign of LIV" η_+ = 1, to phenomenologically study the effect of quantum gravity in the strong gravitational field. Specifically, we have studied the effect of the LIV-DR induced quantum gravity on the Schwarzschild black hole thermodynamics. The result shows that the effect of the LIV-DR induced quantum gravity speeds up the black hole evaporation, and its corresponding black hole entropy undergoes a leading logarithmic correction to the "reduced Bekenstein-Hawking entropy", and the ill defined situations (i.e. the singularity problem and the critical problem) are naturally bypassed when the LIV-DR effect is present. Also, to put our results in a proper perspective, we have compared with the earlier findings by another quantum gravity candidate, i.e. the generalized uncertainty principle (GUP). Finally, we conclude from the inert remnants at the final stage of the black hole evaporation that, the GUP as a candidate for describing quantum gravity can always do as well as the LIV-DR by adjusting the model-dependent parameters, but in the same model-dependent parameters the LIV-DR acts as a more suitable candidate.
description: 18 pages, 7 figures
title: CSCW & Redrawing Public School Boundaries: An Intersection of Computer Science, Education Policy, and Geography Research
Creators: name: Sistrunk, Andreea
name: Subhodip, Biswas
name: Egenrieder, James
name: Glenn, William
name: Luther, Kurt
name: Ramakrishnan, Naren
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: Platform collaboration is recognized as a staple of efficiency in organizations and community work. The pandemic need for virtual interaction offered a real-life testing opportunity to untapped capabilities of interdisciplinary palatformilization. We propose the intersection of three very different disciplines: education policy, geospatial optimization, and computer science as new grounds for a CSCW emerging field. We present how this intersection furthers the ability for people with no advanced training to manipulate advanced data and concepts for better decision enabled crowd-sourcing and communal collaboration towards a common goal. We describe the traditional state of practice currently utilized channels, emerging methods, and propose ways for advancement towards technology infused community deliberations in the process of redrawing public school boundaries.
Static and Dynamic Magnetic Properties of Spin-1/2 Inequilateral Diamond-Chain Compounds $A_3$Cu$_3$AlO$_2$(SO$_4$)$_4$ ($A$=K, Rb, and Cs)
Creators: name: Morita, Katsuhiro
name: Fujihala, Masayoshi
name: Koorikawa, Hiroko
name: Sugimoto, Takanori
name: Sota, Shigetoshi
name: Mitsuda, Setsuo
name: Tohyama, Takami
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spin-1/2 compounds A3Cu3AlO2(SO4)4 (A=K, Rb, and Cs) have one-dimensional (1D) inequilateral diamond chains. We analyze the temperature dependence of the magnetic susceptibility and determine the magnetic exchange interactions. In contrast to the azurite, a dimer is formed on one of the sides of the diamond. From numerical analyses of the proposed model, we find that the dimer together with a nearly isolated 1D Heisenberg chain characterizes magnetic properties including magnetization curve and magnetic excitations. This implies that a dimer-monomer composite chain without frustration is a good starting point for describing these compounds.
Intrinsic AGN SED & black hole growth in the Palomar--Green quasars
Creators: name: Lani, Caterina
name: Netzer, Hagai
name: Lutz, Dieter
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a new analysis of the PG quasar sample based on Spitzer and Herschel observations. (I) Assuming PAH-based star formation luminosities (L_SF) similar to Symeonidis et al. (2016, S16), we find mean and median intrinsic AGN spectral energy distributions (SEDs). These, in the FIR, appear hotter and significantly less luminous than the S16 mean intrinsic AGN SED. The differences are mostly due to our normalization of the individual SEDs, that properly accounts for a small number of very FIR-luminous quasars. Our median, PAH-based SED represents ~ 6% increase on the 1-243 micron luminosity of the extended Mor & Netzer (2012, EM12) torus SED, while S16 find a significantly larger difference. It requires large-scale dust with T ~ 20 -- 30 K which, if optically thin and heated by the AGN, would be outside the host galaxy. (II) We also explore the black hole and stellar mass growths, using L_SF estimates from fitting Herschel/PACS observations after subtracting the EM12 torus contribution. We use rough estimates of stellar mass, based on scaling relations, to divide our sample into groups: on, below and above the star formation main sequence (SFMS). Objects on the SFMS show a strong correlation between star formation luminosity and AGN bolometric luminosity, with a logarithmic slope of ~ 0.7. Finally we derive the relative duty cycles of this and another sample of very luminous AGN at z = 2 -- 3.5. Large differences in this quantity indicate different evolutionary pathways for these two populations characterised by significantly different black hole masses.
description: Accepted for publication in MNRAS
Origin of Non-axisymmetric Features of Virgo Cluster Early-type Dwarf Galaxies. I. Bar Formation and Recurrent Buckling
Creators: name: Kwak, SungWon
name: Kim, Woong-Tae
name: Rey, Soo-Chang
name: Kim, Suk
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A fraction of early-type dwarf galaxies in the Virgo cluster have a disk component and even possess disk features such as bar, lens, and spiral arms. In this study, we construct 15 galaxy models that resemble VCC856, considered to be an infalling progenitor of disk dwarf galaxies, within observational error ranges, and use $N$-body simulations to study their long-term dynamical evolution in isolation as well as the formation of bar in them. We find that dwarf disk galaxies readily form bars unless they have an excessively concentrated halo or a hot disk. This suggests that infalling dwarf disk galaxies are intrinsically unstable to bar formation, even without any external perturbation, accounting for a population of barred dwarf galaxies in the outskirts of the Virgo cluster. The bars form earlier and stronger in galaxies with a lower fraction of counter-streaming motions, lower halo concentration, lower velocity anisotropy, and thinner disk. Similarly to normal disk galaxies, dwarf disk galaxies also undergo recurrent buckling instabilities. The first buckling instability tends to shorten the bar and to thicken the disk, and drives a dynamical transition in the bar pattern speed as well as mass inflow rate. In nine models, the bars regrow after the mild first buckling instability due to the efficient transfer of disk angular momentum to the halo, and are subject to recurrent buckling instabilities to turn into X-shaped bulges.
Rigidity results on gradient Schouten solitons
Creators: name: Pina, Romildo
name: Menezes, Ilton
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: In this paper we consider $ρ$-Einstein solitons of type $M= \left(B^n, g^{*}\right) \times (F^m,g_F)$, where $\left(B^n,g^{*}\right)$ is conformal to a pseudo-Euclidean space and invariant under the action of the pseudo-orthogonal group, and $\left(F^m,g_{F}\right)$ is an Einstein manifold. We provide all the solutions for the gradient Schouten soliton case. Moreover, in the Riemannian case, we prove that if
 $M= \left(B^n, g^{*}\right) \times (F^m,g_F)$ is a complete gradient Schouten soliton then $\left(B^{n},g^{*}\right)$ is isometric to $\mathbb{S}^{n-1}\times \mathbb{R}$ and $F^m$ is a compact Einstein manifold.
First axion dark matter search with toroidal geometry
Creators: name: Choi, J.
name: Themann, H.
name: Lee, M. J.
name: Ko, B. R.
name: Semertzidis, Y. K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We firstly report an axion haloscope search with toroidal geometry. In this pioneering search, we exclude the axion-photon coupling $g_{aγγ}$ down to about $5\times10^{-8}$ GeV$^{-1}$ over the axion mass range from 24.7 to 29.1 $μ$eV at a 95\% confidence level. The prospects for axion dark matter searches with larger scale toroidal geometry are also considered.
description: 5 pages, 5 figures, 1 table and to appear in PRD-RC
Degenerate Raman sideband cooling of 39K
Creators: name: Gröbner, Michael
name: Weinmann, Philipp
name: Kirilov, Emil
name: Nägerl, Hanns-Christoph
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on the first realization of sub-Doppler laser cooling of 39K atoms using degenerate 3D Raman sideband cooling. We take advantage of the well-resolved excited hyperfine states on the D1 optical transition to produce spin polarized samples with $1.4 \times 10^8$ atoms at temperatures of 1.8 $μ$K. The phase-space densities are $\geq 10^{-4}$, which significantly improves the initial conditions for a subsequent evaporative cooling step. The presented cooling technique using the D1 line can be adapted to other atomic species and is applicable to high-resolution imaging schemes in far off-resonant optical lattices.
MPEC 2023-R130 : DAILY ORBIT UPDATE (2023 September 11)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
A Baseline for Cross-Domain Fine-Grained Vehicle Classification in a Supervised Partially Zero-Shot Setting
Creators: name: Wolf, Stefan
Publisher: name: KIT Scientific Publishing
Year: 2023

description: Fine-grained vehicle classification is an important task particularly for security applications like searching for cars of suspects who abuse stolen license plates. However, data privacy and the large number of existing car models render it highly difficult to create a large up-to-date dataset for fine-grained vehicle classification with surveillance images. While a large number of images of vehicles are available in the web due to car selling sites, they have a perspective which is vastly different to surveillance images. Domain adaptation is the field of research that uses domain-wise inappropriate images for training of classification models with the target of running accurate inference on images of a different domain. Since the widely considered unsupervised and semi-supervised domain adaptation settings are unrealistic for fine-grained vehicle classification, we establish a baseline for cross-domain fine-grained vehicle classification in a supervised partially zero-shot setting. Our results indicate that existing domain adaptation methods like domain adversarial training and triplet loss are still advantageous for this setting and we show the benefit of distance-based classification for this task.
title: Accessing regulated digital infrastructures: a case study of the UK's retail payment infrastructure
Creators: name: Ambagahawita, Kanchana
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2022

description: This research examines how heterogeneous actors gain access to regulated digital infrastructures. As industries, businesses and customers increasingly adopt digital means, markets can shift to industry infrastructure. Market infrastructures are often regulated to ensure service quality and are dominated by incumbents due to high entry barriers. Resolving tensions between heterogeneous actors of digital platforms has been studied; however, there is a dearth of understanding of how the social-technical complexities of regulated digital infrastructure are resolved. In this research, I conducted an in-depth study of the UK’s real-time retail payment infrastructure and how third-party service providers, Fintechs, gained access to the infrastructure. The high level of heterogeneous actors, both at the infrastructure level and externally at the regulatory and policy levels, provided a rich context to explore this issue. I draw on Pickering’s theoretical lens of the Mangle of Practice and subsequent research extending it to understand how sociotechnical resistances emanating from interactions of the material agency of the legacy heavy systems, disciplinary agency arising from the need to maintain financial system stability and agency of heterogeneous actors are accommodated to reach different goals of actors. The findings indicate the overwhelming influence of disciplinary agency over the agencies of all other actors and elements. Thus resulting in processes of recursive tuning of digital infrastructure rules to balance innovation and competition while continuously maintaining system stability. Further, the presence of resistances creates new classes of actors and services that tune the resistances for the Fintechs, enabling them to reach their original or modified goals. Further, the occasional regulatory triggers imposed by policy and macro regulatory levels on the incumbents resulted in the infrastructure being remodelled for new goals after the triggers. This pattern thus makes the evolution of the infrastructure less organic and more administered.
Large room temperature spin-to-charge conversion signals in a few-layer graphene/Pt lateral heterostructure
Creators: name: Yan, Wenjing
name: Sagasta, Edurne
name: Ribeiro, Mário
name: Niimi, Yasuhiro
name: Hueso, Luis E.
name: Casanova, Fèlix
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electrical generation and detection of pure spin currents without the need of magnetic materials are key elements for the realization of full electrically controlled spintronic devices. In this framework, achieving a large spin-to-charge conversion signal is crucial, since considerable outputs are needed for plausible applications. Unfortunately, the values obtained so far have been rather low. Here we exploit the spin Hall effect by using Pt, a non-magnetic metal with strong spin-orbit coupling, to generate and detect pure spin currents in a few-layer graphene channel. Furthermore, the outstanding properties of graphene, with long distance spin transport and higher electrical resistivity than metals, allows us to achieve in our graphene/Pt lateral heterostructures the largest spin-to-charge voltage signal at room temperature reported so far in the literature. Our approach opens up exciting opportunities towards the implementation of spin-orbit-based logic circuits and all electrical control of spin information without magnetic field.
description: 11 pages, 4 figures. Supplementary Information is included at the end (10 pages, 4 figures). Accepted in Nature Communications
$N$-Bright-Dark Soliton Solution to a Semi-Discrete Vector Nonlinear Schrödinger Equation
Creators: name: Feng, Bao-Feng
name: Ohta, Yasuhiro
Publisher: name: arXiv
Year: 2017
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, a general bright-dark soliton solution in the form of Pfaffian is constructed for an integrable semi-discrete vector NLS equation via Hirota's bilinear method. One- and two-bright-dark soliton solutions are explicitly presented for two-component semi-discrete NLS equation; two-bright-one-dark, and one-bright-two-dark soliton solutions are also given explicitly for three-component semi-discrete NLS equation. The asymptotic behavior is analysed for two-soliton solutions.
Observation of interspecies Feshbach resonances in an ultracold $^{39}$K-$^{133}$Cs mixture and refinement of interaction potentials
Creators: name: Gröbner, Michael
name: Weinmann, Philipp
name: Kirilov, Emil
name: Nägerl, Hanns-Christoph
name: Julienne, Paul S.
name: Sueur, C. Ruth Le
name: Hutson, Jeremy M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We observe interspecies Feshbach resonances due to s-wave bound states in ultracold $^{39}$K-$^{133}$Cs scattering for three different spin mixtures. The resonances are observed as joint atom loss and heating of the K sample. We perform least-squares fits to obtain improved K-Cs interaction potentials that reproduce the observed resonances, and carry out coupled-channel calculations to characterize the scattering and bound-state properties for $^{39}$K-Cs, $^{40}$K-Cs and $^{41}$K-Cs. Our results open up the possibilities of tuning interactions in K-Cs atomic mixtures and of producing ultracold KCs molecules.
description: 16 pages, 8 figures