cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PC-Expo: A Metrics-Based Interactive Axes Reordering Method for Parallel Coordinate Displays
Creators: name: Tyagi, Anjul
name: Estro, Tyler
name: Kuenning, Geoff
name: Zadok, Erez
name: Mueller, Klaus
Publisher: name: arXiv
Year: 2022
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: The axes ordering in PCP presents a particular story from the data based on the user perception of PCP polylines. Existing works focus on directly optimizing for PCP axes ordering based on some common analysis tasks like clustering, neighborhood, and correlation. However, direct optimization for PCP axes based on these common properties is restrictive because it does not account for multiple properties occurring between the axes, and for local properties that occur in small regions in the data. Also, many of these techniques do not support the human-in-the-loop (HIL) paradigm, which is crucial (i) for explainability and (ii) in cases where no single reordering scheme fits the user goals. To alleviate these problems, we present PC-Expo, a real-time visual analytics framework for all-in-one PCP line pattern detection, and axes reordering. We studied the connection of line patterns in PCPs with different data analysis tasks and datasets. PC-Expo expands prior work on PCP axes reordering by developing real-time, local detection schemes for the 12 most common analysis tasks (properties). Users can choose the story they want to present with PCPs by optimizing directly over their choice of properties. These properties can be ranked, or combined using individual weights, creating a custom optimization scheme for axes reordering. Users can control the granularity at which they want to work with their detection scheme in the data, allowing exploration of local regions. PC-Expo also supports HIL axes reordering via local-property visualization, which shows the regions of granular activity for every axis pair. Local-property visualization is helpful for PCP axes reordering based on multiple properties, when no single reordering scheme fits the user goals.
description: Pre-print of the accepted paper at Transactions of Visualization and Computer Graphics Forum (TVCG), 2022
title: Into the Deep: The Role of Paradigms in Understanding Engineering Education for Sustainable Development
Creators: name: Conlon, Eddie
name: Nicolaou, Iacovos
name: Bowe, Brian
Publisher: name: Technological University of Dublin
Year: 2017

description: This article presents summary findings of a mixed methods research project exploring the provision of education for sustainable development (SD) in seven Irish engineering degree programmes. Drawing on Sterling’s (2004) iceberg metaphor and Critical Realism it seeks to identify the underlying socio-cultural barriers preventing a holistic integration of SD in engineering education. It argues that the current focus is predominantly on the environmental dimension of SD and that there are a set of reinforcing mechanisms facilitating the provision of disciplinary education aimed at producing technically proficient, employable graduates in which the social dimension of SD is marginalised. This is underwritten by a paradigm of engineering education located between science and market driven approaches as identified by Jamison and others (2014). It is argued that unless there is change in the underlying paradigm towards a more socially driven approach a full integration of SD is unlikely to occur or be sustained.
Size-dependent mobility of skyrmions beyond pinning in ferrimagnetic GdCo thin films
Creators: name: Berges, Léo
name: Haltz, Eloi
name: Panigrahy, Sujit
name: Mallick, Sougata
name: Weil, Raphäel
name: Rohart, Stanislas
name: Mougin, Alexandra
name: Sampaio, João
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic skyrmions are swirling magnetic textures that can be efficiently driven with spin-orbit torques with a deflected trajectory. However, pinning slows skyrmions down and alters their trajectory, which prevents a quantitative comparison to analytical models. Here, we study skyrmions driven by spin-orbit torques at room temperature in ferrimagnetic GdCo thin films, an amorphous material with low pinning. Above a sharp current depinning threshold, we observe a clearly linear velocity increase with current that extrapolates to zero and a constant deflection angle, reaching high velocities up to 200 m/s. The mobility increases and the depinning threshold current decreases with the skyrmion diameter, which we vary using an external magnetic field. An analytical model based on the Thiele equation quantitatively reproduces these findings with a single fitting parameter. This validates the linear flow regime description and shows, in particular, the important role of skyrmion size in its dynamics.
description: Supplemental information available from the final journal
Single Bit and Reduced Dimension Diffusion Strategies Over Distributed Networks
Creators: name: Sayin, Muhammed O.
name: Kozat, Suleyman S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We introduce novel diffusion based adaptive estimation strategies for distributed networks that have significantly less communication load and achieve comparable performance to the full information exchange configurations. After local estimates of the desired data is produced in each node, a single bit of information (or a reduced dimensional data vector) is generated using certain random projections of the local estimates. This newly generated data is diffused and then used in neighboring nodes to recover the original full information. We provide the complete state-space description and the mean stability analysis of our algorithms.
description: Submitted to the IEEE Signal Processing Letters
Robotic Inspection and Characterization of Subsurface Defects on Concrete Structures Using Impact Sounding
Creators: name: Hoxha, Ejup
name: Feng, Jinglun
name: Sanakov, Diar
name: Gjinofci, Ardian
name: Xiao, Jizhong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Impact-sounding (IS) and impact-echo (IE) are well-developed non-destructive evaluation (NDE) methods that are widely used for inspections of concrete structures to ensure the safety and sustainability. However, it is a tedious work to collect IS and IE data along grid lines covering a large target area for characterization of subsurface defects. On the other hand, data processing is very complicated that requires domain experts to interpret the results. To address the above problems, we present a novel robotic inspection system named as Impact-Rover to automate the data collection process and introduce data analytics software to visualize the inspection result allowing regular non-professional people to understand. The system consists of three modules: 1) a robotic platform with vertical mobility to collect IS and IE data in hard-to-reach locations, 2) vision-based positioning module that fuses the RGB-D camera, IMU and wheel encoder to estimate the 6-DOF pose of the robot, 3) a data analytics software module for processing the IS data to generate defect maps. The Impact-Rover hosts both IE and IS devices on a sliding mechanism and can perform move-stop-sample operations to collect multiple IS and IE data at adjustable spacing. The robot takes samples much faster than the manual data collection method because it automatically takes the multiple measurements along a straight line and records the locations. This paper focuses on reporting experimental results on IS. We calculate features and use unsupervised learning methods for analyzing the data. By combining the pose generated by our vision-based localization module and the position of the head of the sliding mechanism we can generate maps of possible defects. The results on concrete slabs demonstrate that our impact-sounding system can effectively reveal shallow defects.
The ESCAPE Data Science Summer School 2021 ADASS XXXI Poster
Creators: name: Vuillaume, Thomas
Publisher: name: Zenodo
Year: 2021
Subjects: poster, adass, conference, escape, astronomy, particle physics, education

description: The goal of reaching an Open Science ecosystem in the European Open-Science Cloud (EOSC) is not possible without training of early career scientists. In particular, the creation and maintenance of high-quality and open software need special consideration. This is tackled within the ESCAPE H2020 project through thematic training events: the ESCAPE Data Science Summer Schools.
 During these schools, young scientists in the field of astronomy, astro-particle and particle physics are taught the necessary ingredients for their software to become a part of open science by experienced code custodians.
 The 2021 school's edition was a continuation of the ASTERICS/OBELICS summer schools previously organised at LAPP (Annecy, France) but has been re-organised as an online event due to the COVID crisis. It witnessed more than 1000 registered participants, showing both the need and importance of such training events.
 Following the FAIR paradigm and as an example of good practices in code development, the full information of the school are openly available online, including scientific programme, agenda and links to all contributions (software repository, notebooks, contributions, presentations and recordings).
 In this contribution, we review the goals, organisation and participants feedback of such an event to present a return of experience for future similar events.
description: Poster on the ESCAPE Data Science Summer school 2021 presented at ADASS XXXI
Coupled Layer Construction for Synthetic Hall Effects in Driven Systems
Creators: name: Long, David M.
name: Crowley, Philip J. D.
name: Chandran, Anushya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quasiperiodically driven fermionic systems can support topological phases not realized in equilibrium. The fermions are localized in the bulk, but support quantized energy currents at the edge. These phases were discovered through an abstract classification, and few microscopic models exist. We develop a coupled layer construction for tight-binding models of these phases in $d\in\{1,2\}$ spatial dimensions, with any number of incommensurate drive frequencies $D$. The models exhibit quantized responses associated with synthetic two- and four-dimensional quantum Hall effects in the steady state. A numerical study of the phase diagram for $(d+D) = (1+2)$ shows: (i) robust topological and trivial phases separated by a sharp phase transition; (ii) charge diffusion and a half-integer energy current between the drives at the transition; and (iii) a long-lived topological energy current which remains present when weak interactions are introduced.
description: 15 pages, 11 figures; (v2) published version
Bjorken sum rule with hyperasymptotic precision
Creators: name: Ayala, Cesar
name: Pineda, Antonio
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We obtain an improved determination of the normalization of the leading infrared renormalon of the Bjorken sum rule: $Z_B (n_f=3)= -0.407\pm 0.119 $. Estimates of higher order terms of the perturbative series are given. We compute the Bjorken sum rule with hyperasymptotic precision by including the leading terminant, associated with the first infrared renormalon. We fit the experimental data to the operator product expansion theoretical prediction with $\hat f_{3}^{\rm PV}$ as the free parameter. We obtain a good agreement with the experiment with $\hat f_{3}^{\rm PV}\times 10^3=32^{+187}_{-196}\;{\rm GeV}^{2}$ for $Q^2 \geq 1$ GeV$^2$.
description: 25 pages, 8 Figures; v2: small numerical modification due to finite charm mass corrections. Physical results unchanged. References added. It matches the PRD version
Dipole modes of a trapped bosonic mixture: Fate of the sum-rule approach
Creators: name: Fort, Chiara
name: Modugno, Michele
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present a general discussion of the dipole modes of a heteronuclear bosonic mixture in a harmonic trap by comparing the prediction of the sum-rule approach with full Gross-Pitaevskii (GP) calculations. Yet in the range of interaction in which the mixture is miscible and stable at the mean field level, $g_{12}^2
description: 8 pages, 3 figures; improved text and other minor corrections
Space-borne atom interferometric gravitational wave detections. Part III. Eccentricity on dark sirens
Creators: name: Yang, Tao
name: Cai, Rong-Gen
name: Lee, Hyung Mok
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Eccentricity of the inspiraling compact binaries can greatly improve the distance inference and source localization of dark sirens. In this paper, we continue the research for the space-borne atom interferometric gravitational-wave detector AEDGE and investigate the effects of eccentricity on the dark sirens observed by AEDGE in the mid-band. We simulate five types of typical compact binaries with component mass ranging from $1-100~M_{\odot}$. The largest improvement for both distance inference and localization can be as much as 1.5--3 orders of magnitude. We then construct the catalogs of dark sirens observed by AEDGE in five years. We find eccentricity is crucial to the detection of golden binary black holes (BBH) whose host galaxy can be uniquely identified. With only 5--10 golden dark BBHs one can obtain a 2 percent precision measurement of $H_0$ which is sufficient to arbitrate the Hubble tension. Regardless of eccentricity, AEDGE can also observe tens of golden binary neutron stars (BNS) and neutron star--black hole binaries (NSBH) with unique host galaxies. These golden dark sirens can serve as early warnings for the follow-up observations of gravitational waves in the high frequency band as well as the search of their electromagnetic counterparts. Our results show eccentricity is a crucial factor in the detection, data analysis, and application of GWs with the atom interferometers in the mid-band.
description: 23 pages, 10 figures, typo corrections, published in JCAP
Search for b$\to$s gluon in B meson decays
Creators: name: Albrecht, H.
name: Gläser, R.
name: Harder, G.
name: Krüger, A.
name: Nippe, A.
name: Oest, T.
name: Reidenbach, M.
name: Schäfer, M.
name: Schmidt-Parzefall, W.
name: Schröder, H.
name: Schulz, H. D.
name: Sefkow, F.
name: Wurth, R.
name: Appuhn, R. D.
name: Drescher, A.
name: Hast, C.
name: Herrera, G.
name: Kolanoski, H.
name: Lange, A.
name: Lindner, A.
name: Mankel, R.
name: Scheck, H.
name: Schweda, G.
name: Spaan, B.
name: Walther, A.
name: Wegener, D.
name: Paulini, M.
name: Reim, K.
name: Volland, U.
name: Wegener, H.
name: Funk, W.
name: Stiewe, J.
name: Werner, S.
name: Ball, S.
name: Gabriel, J. C.
name: Geyer, C.
name: Hölscher, A.
name: Hofmann, W.
name: Holzer, B.
name: Khan, S.
name: Spengler, J.
name: Charlesworth, C. E. K.
name: Edwards, K. W.
name: Frisken, W. R.
name: Kapitza, H.
name: Krieger, P.
name: Kutschke, R.
name: MacFarlane, D. B.
name: McLean, K. W.
name: Orr, R. S.
name: Parsons, J. A.
name: Patel, P. M.
name: Prentice, J. D.
name: Seidel, S. C.
name: Swain, J. D.
name: Tsipolitis, G.
name: Yoon, T.-S.
name: Davis, R.
name: Ruf, T.
name: Schael, S.
name: Schubert, K. R.
name: Strahl, K.
name: Waldi, R.
name: Weseler, S.
name: Boštjančič, B.
name: Kernel, G.
name: Križan, P.
name: Križnič, E.
name: Pleško, M.
name: Cronström, H. I.
name: Jönsson, L.
name: Nilsson, A. W.
name: Babaev, A.
name: Danilov, M.
name: Fominykh, B.
name: Golutvin, A.
name: Gorelov, I.
name: Lubimov, V.
name: Rostovtsev, A.
name: Semenov, A.
name: Semenov, S.
name: Shevchenko, V.
name: Soloshenko, V.
name: Tchistilin, V.
name: Tichomirov, I.
name: Zaitsev, Yu.
name: Childers, R.
name: Darden, C. W.
name: ARGUS Collaboration
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1991
Subjects: subject: 530
subject: electron positron: colliding beams
subject: colliding beams: electron positron
subject: electron positron: annihilation
subject: annihilation: electron positron
subject: Upsilon(10570): electroproduction
subject: electroproduction: Upsilon(10570)
subject: B: pair production
subject: pair production: B
subject: B: decay modes
subject: decay modes: B
subject: B: branching ratio
subject: upper limit
subject: bottom
subject: quark: nonleptonic decay
subject: nonleptonic decay: quark
subject: ARGUS
subject: experimental results
subject: DESY DORIS Stor
subject: beauty --> strangeness gluon
subject: 10.57 GeV-cms
subject: S041.151
subject: S041.152
subject: S041.153
subject: S041.154
subject: S041.155
subject: S041.156
subject: S041.157
subject: S041.158
subject: S041.5
subject: S041.6
subject: S041.7
subject: S041.8
subject: S042.10
subject: S042.11
subject: S042.12
subject: S042.13
subject: S042.14
subject: S042.15
subject: S042.72
subject: S042.73
subject: S042.74
subject: S042.75
subject: S042.76
subject: S042.86

description: Using the ARGUS detector at the $e^+e^−$ storage ring DORIS II at DESY, a search for penguin decays of B mesons involving b→s gluon has been performed. No evidence for the penguin mechanism was found and a number of upper limits are quoted.
The Proxy Step-size Technique for Regularized Optimization on the Sphere Manifold
Creators: name: Bai, Fang
name: Bartoli, Adrien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Robotics (cs.RO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We give an effective solution to the regularized optimization problem $g (\boldsymbol{x}) + h (\boldsymbol{x})$, where $\boldsymbol{x}$ is constrained on the unit sphere $\Vert \boldsymbol{x} \Vert_2 = 1$. Here $g (\cdot)$ is a smooth cost with Lipschitz continuous gradient within the unit ball $\{\boldsymbol{x} : \Vert \boldsymbol{x} \Vert_2 \le 1 \}$ whereas $h (\cdot)$ is typically non-smooth but convex and absolutely homogeneous, \textit{e.g.,}~norm regularizers and their combinations. Our solution is based on the Riemannian proximal gradient, using an idea we call \textit{proxy step-size} -- a scalar variable which we prove is monotone with respect to the actual step-size within an interval. The proxy step-size exists ubiquitously for convex and absolutely homogeneous $h(\cdot)$, and decides the actual step-size and the tangent update in closed-form, thus the complete proximal gradient iteration. Based on these insights, we design a Riemannian proximal gradient method using the proxy step-size. We prove that our method converges to a critical point, guided by a line-search technique based on the $g(\cdot)$ cost only. The proposed method can be implemented in a couple of lines of code. We show its usefulness by applying nuclear norm, $\ell_1$ norm, and nuclear-spectral norm regularization to three classical computer vision problems. The improvements are consistent and backed by numerical experiments.
description: 19 pages
ТВОРЧЕСТВО АЛЕКСАНДРА ПУШКИНА В ИСКУССТВЕ УЗБЕКИСТАНА
Creators: name: Кобилова, Гулчехрахон
Publisher: name: Zenodo
Year: 2024

description: Тема творчества Александра Пушкина в искусстве Узбекистана исследует влияние русской литературы на узбекскую культуру, особенно в области живописи и литературы. Пушкин, как символ национальной литературы, стал источником вдохновения для многих узбекских писателей, которые интерпретировали его произведения через призму своих культурных традиций. В живописи узбекских мастеров можно увидеть уникальные визуальные интерпретации пушкинских сюжетов, пронизанные местными мотивами и эстетикой. Эта аннотация подчеркивает важность изучения перекрестков искусства, где пересекаются классическая русская литература и узбекское художественное наследие, формируя новые культурные нарративы.
5mC/5hmC Sequencing
Creators: name: Gellar, Dianna
Publisher: name: Zenodo
Year: 2023

description: DNA methylation and hydroxymethylation at the 5-position of cytosine (5mC) are essential epigenetic alterations that play vital roles in gene expression regulation and cell differentiation. DNA methylation typically represses gene transcription. Hydroxymethylation, on the contrary, activates gene expression or prompts DNA demethylation. 5mC groups introduced by DNA Methyl-Transferases can be iteratively oxidized to 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC), and 5-carboxylcytosine (5caC) by the action of Tet Methylcytosine Dioxygenases. 5hmC is the most abundant component in vivo among the three 5mC oxidative derivatives and can be identified in almost all mammalian tissues and cells. 5mC and 5hmC genome-wide mapping uncover the genomic areas of these alterations, which is crucial for elucidating their mechanisms.
A machine learning approach to photometric metallicities of giant stars
Creators: name: Fallows, Connor P.
name: Sanders, Jason L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Despite the advances provided by large-scale photometric surveys, stellar features - such as metallicity - generally remain limited to spectroscopic observations often of bright, nearby low-extinction stars. To rectify this, we present a neural network approach for estimating the metallicities and distances of red giant stars with 8-band photometry and parallaxes from Gaia EDR3 and the 2MASS and WISE surveys. The algorithm accounts for uncertainties in the predictions arising from the range of possible outputs at each input and from the range of models compatible with the training set (through drop-out). A two-stage procedure is adopted where an initial network to estimate photo-astrometric parallaxes is trained using a large sample of noisy parallax data from Gaia EDR3 and then a secondary network is trained using spectroscopic metallicities from the APOGEE and LAMOST surveys and an augmented feature space utilising the first-stage parallax estimates. The algorithm produces metallicity predictions with an average uncertainty of $\pm0.19$ dex. The methodology is applied to stars within the Galactic bar/bulge with particular focus on a sample of 1.69 million objects with Gaia radial velocities. We demonstrate the use and validity of our approach by inspecting both spatial and kinematic gradients with metallicity in the Galactic bar/bulge recovering previous results on the vertical metallicity gradient ($-0.528 \pm 0.002$ dex/kpc) and the vertex deviation of the bar ($-21.29 \pm 2.74$ deg).
description: 18 pages, 14 figures, 3 tables, accepted for publication in MNRAS
title: Hyperborean Habits and Melting Ice: The Normalization of Arctic Space and Resurgent National Identity
Creators: name: Birdwell, Ian
Publisher: name: Old Dominion University Libraries
Year: 2019

description: The Arctic Council has a robust history of fostering cooperation among its members on a host of environmental and scientific objectives. Yet, as the region has warmed the formerly inaccessible region has become ever easier to access, and Arctic politics are becoming of greater interest to the global community. In the midst significant change of this the network created by the Arctic Council continues to advance its cooperative agenda, though increasingly it seems to be experiencing setbacks due to the surges of nationalistic rhetoric on the part of its members. What best explains the transformation of national attitudes and how will such a transformation affect the future of Arctic politics? This paper argues the national identities of Arctic states limits the ability of the Arctic Council to create policy inroads into the national interests of its members in key identity-linked areas such as national defense, resource extraction, and territorial disputes. This propagates a normalization of Arctic politics, shifting the formerly unique hyperborean political system into something more readily resembling the interactions of Arctic states below the Arctic Circle. This is accomplished through a histographical analysis of Arctic Council policy recommendations, domestic political developments, and international relationships since 1989 between the Arctic Council and the two most nationalistic Arctic states, Russia and Canada. Ultimately, Arctic Council recommendations on issues linked to traditionally cooperative areas such as scientific cooperation and conservation do experience successful integration into member states; however, closely related to power national interests are neglected by states in favor of the pursuit of those interests.
Quaternionic Fourier-Mellin Transform
Creators: name: Hitzer, Eckhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this contribution we generalize the classical Fourier Mellin transform [S. Dorrode and F. Ghorbel, Robust and efficient Fourier-Mellin transform approximations for gray-level image reconstruction and complete invariant description, Computer Vision and Image Understanding, 83(1) (2001), 57-78, DOI 10.1006/cviu.2001.0922.], which transforms functions $f$ representing, e.g., a gray level image defined over a compact set of $\mathbb{R}^2$. The quaternionic Fourier Mellin transform (QFMT) applies to functions $f: \mathbb{R}^2 \rightarrow \mathbb{H}$, for which $|f|$ is summable over $\mathbb{R}_+^* \times \mathbb{S}^1$ under the measure $dθ\frac{dr}{r}$. $\mathbb{R}_+^*$ is the multiplicative group of positive and non-zero real numbers. We investigate the properties of the QFMT similar to the investigation of the quaternionic Fourier Transform (QFT) in [E. Hitzer, Quaternion Fourier Transform on Quaternion Fields and Generalizations, Advances in Applied Clifford Algebras, 17(3) (2007), 497-517.; E. Hitzer, Directional Uncertainty Principle for Quaternion Fourier Transforms, Advances in Applied Clifford Algebras, 20(2) (2010), 271-284, online since 08 July 2009.].
description: 11 pages, 9 figures
title: Emergency Departments and Care for Marginalized Populations
Creators: name: Harrell, Irvin B.
Publisher: name: Old Dominion University Libraries
Year: 2019

description: Healthcare providers in emergency departments (EDs) face a daunting daily task: providing health care in a triage setting to a diverse group of patients many with complex medical issues. Many patients rely on ED services out of financial necessity, when their healthcare issues could be better suited for care from a primary care physician. Many of these already vulnerable patients – minorities, those health illiterate, low-income, uninsured and those with language barriers – must also deal with ED overcrowding and staffing conditions. In some cases, patients leave without being seen while others face bed shortages. This study explores healthcare provider experiences and highlights some of the challenges of health care in the ED. This study also provides insight into possible interventions designed to better address the needs of ED patients. Through the use of a questionnaire, this study relays the experiences of 27 professionals who have worked in EDs the Hampton Roads area. While heart attacks, breathing problems, and trauma comprise the most common diagnoses and treatments cited by questionnaire respondents, this study found that overcrowding, long wait times, and staffing shortages were the biggest challenges that regional ED staffs faced. Caregivers surveyed in the study suggested that increased staffing, more beds, better transportation and more diligence in following up with patients could improve conditions in emergency departments.
Mass Corrections to Flavor-Changing Fermion-Graviton Vertices in the Standard Model
Creators: name: Coriano, Claudio
name: Rose, Luigi Delle
name: Gabrielli, Emidio
name: Trentadue, Luca
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a previous study, the flavor-changing fermion-graviton interactions have been analyzed in the framework of the standard model, where analytical results for the relevant form factors were obtained at the leading order in the external fermion masses. These interactions arise at one-loop level by the charged electroweak corrections to the fermion-graviton vertex, when the off-diagonal flavor transitions in the corresponding charged weak currents are taken into account. Due to the conservation of the energy-momentum tensor, the corresponding form factors turn out to be finite and gauge invariant when external fermions are on-shell. Here we extend this previous analysis by including the exact dependence on the external fermion masses. Complete analytical results are provided for all the relevant form factors to the flavor-changing fermion-graviton transitions.
description: 19 pages, 9 figures
Parrondo's paradox and superactivation of classical and quantum capacity of communication channels with memory
Creators: name: Strelchuk, Sergii
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There exist memoryless zero-capacity quantum channels that when used jointly result in the channel with positive capacity. This phenomenon is called superactivation. Making use of Parrondo's paradox, we exhibit examples of superactivation-like effect for the capacity of classical communication channels as well as quantum and private capacity of quantum channels with memory. There are several ingredients necessary for superactivation of quantum capacity to occur in memoryless case. The first one is the requirement for the quantum channels which are amenable for superactivation to come from two distinct families - binding entanglement channels and erasure channels. The second one is the ability to utilize inputs which are entangled across the uses of the channels. Our construction uses a single family of erasure channels with classical memory to achieve the same superactivation-like effect for quantum capacity without any of the ingredients above.
Faculty-Librarian Collaboration for Teaching Digital Information Literacy Online: Case Study of a Large General Education Course
Creators: name: Siu Chen Lim,
name: Yanru, Lyndia Chen
name: Julian Azfar Bin Muhammad 'Adil,
Publisher: name: National University of Singapore
Year: 2023
Subjects: Information Literacy
Digital Information Literacy
Libraries
Librarian
Synchronous Learning
Asynchronous learning

description: This case study provides insights gained from the faculty-librarian collaboration to embed information literacy in an online General Education module taught at the National University of Singapore (NUS). Following an overview of the module and faculty-librarian collaboration framework, the case study describes the librarians’ participation in co-teaching with faculty. Benefits and challenges arising from the collaborative process are assessed, followed by recommendations for future collaborative efforts in the higher education context.
title: The role of discourses and representations in realising 'Welcoming Spaces'
Creators: name: Musarò, Pierluigi
name: Moralli, Melissa
name: Davino, Chiara
name: Giacomelli, Elena
name: Lomonaco, Alice
name: Parmiggiani, Paola
name: Bergamaschi, Maurizio
Publisher: name: University of Bologna
Year: 2023

description: How is migration in shrinking areas represented in media narratives and discourses? Do migrants have access to produce their own narratives? Are “welcoming spaces” narrated by the local or national press, or in social networks? These are some of the questions that this report grapples with and that have been the focus of much discussion throughout the WP4 of the Welcoming Spaces project, for which this report is produced.
title: Must Stay Woke: Black Celebrity Voices of Dissent in the Post Post-Racial Era
Creators: name: Kunda, Lily
Publisher: name: Old Dominion University Libraries
Year: 2019

description: In today’s racially charged climate there is an expectation that black celebrities cry out #BlackLivesMatter, get on the field to #TakeAKnee and be #UnapologeticallyBlack whenever they are in the spotlight. This climate transcends what was once seen as a post-racial America— a time where the media portrayed race as no longer being an issue— and encourages black celebrities to address racism. Prior research on black celebrities by Sarah J. Jackson, Ellis Cashmore, bell hooks, James Baldwin and others acknowledges the historical burden placed on black celebrities to publicly discuss racism and represent blackness in order to challenge dominant narratives. Today, this expectation manifests differently than it has previously due to the affordances of social media and the need for celebrities to brand themselves as “woke” in order to appease their black fans. This thesis analyzes how the system of black celebrity works to bring issues of race into the mainstream public sphere and situates the current climate as post post-racial because of the emergence of discussions around existing systemic racism. Utilizing theoretical celebrity studies research by Richard Dyer and P. David Marshall, I perform a critical discourse analysis of media coverage and online discourses surrounding Beyoncé’s 2016 Super Bowl halftime performance. What I discover is that Beyoncé integrated activism into her brand and public image as a tactic to highlight the tenants of the #BlackLivesMatter Movement —a movement emerged to bring attention to continued systemic racism. This tactic is indicative of a larger cultural shift in the system of American black celebrity in the post Obama era. This research furthers an understanding of how black celebrity and the public sphere converge.
Topological Measures for Pattern quantification of Impact Centers in Piezo Vibration Striking Treatment (PVST)
Creators: name: Yesilli, Melih C.
name: Chumley, Max M.
name: Chen, Jisheng
name: Khasawneh, Firas A.
name: Guo, Yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Geometry (cs.CG)
subject: Algebraic Topology (math.AT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Surface texture influences wear and tribological properties of manufactured parts, and it plays a critical role in end-user products. Therefore, quantifying the order or structure of a manufactured surface provides important information on the quality and life expectancy of the product. Although texture can be intentionally introduced to enhance aesthetics or to satisfy a design function, sometimes it is an inevitable byproduct of surface treatment processes such as Piezo Vibration Striking Treatment (PVST). Measures of order for surfaces have been characterized using statistical, spectral, and geometric approaches. For nearly hexagonal lattices, topological tools have also been used to measure the surface order. This paper utilizes tools from Topological Data Analysis for quantifying the impact centers' pattern in PVST. We compute measures of order based on optical digital microscope images of surfaces treated using PVST. These measures are applied to the grid obtained from estimating the centers of tool impacts, and they quantify the grid's deviations from the nominal one. Our results show that TDA provides a convenient framework for the characterization of pattern type that bypasses some limitations of existing tools such as difficult manual processing of the data and the need for an expert user to analyze and interpret the surface images.
Symmetric and asymmetric excitations of a strong-leg quantum spin ladder
Creators: name: Schmidiger, D.
name: Bouillot, P.
name: Ehlers, G.
name: Mühlbauer, S.
name: Tsvelik, A. M.
name: Kollath, C.
name: Giamarchi, T.
name: Zheludev, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The zero-field excitation spectrum of the strong-leg spin ladder (C$_7$H$_10$N)$_2$CuBr$_4$ (DIMPY) is studied with a neutron time-of-flight technique. The spectrum is decomposed into its symmetric and asymmetric parts with respect to the rung momentum and compared with theoretical results obtained by the density matrix renormalization group method. Additionally, the calculated dynamical correlations are shown for a wide range of rung and leg coupling ratios in order to point out the evolution of arising excitations, as e.g. of the two-magnon bound state from the strong to the weak coupling limit.
title: Interpreting the Other: Natives, Missionaries, and Colonial Authority In New England, 1643-1675
Creators: name: Galante, Violet
Publisher: name: Old Dominion University Libraries
Year: 2019

description: This thesis studies the rise, maintenance, and decline of New England praying towns from 1643-1675. Nestled between the Pequot War and Metacom’s War, the mid-seventeenth century was a period of relative peace between Indians and English settlers. Despite this supposed peace, violence continued between the two sides. The decades of peace were uneasy, and marked by increased tension over land and resources. Missionaries went to natives in Massachusetts and established towns aimed at converting large numbers of Indians. These towns would become a volleying point for local authorities, missionaries, and royal governors as natives, missionaries, settlers, and elites vied for power. Facing rapid depopulation, natives went to the mission towns to ensure their survival. This thesis seeks to understand why mission towns ended so rapidly, and how a period of relative peace could result in extreme violence. It argues that it was the overall misunderstandings on the part of missionaries and natives as to why they joined the other that led to the quick end of the mission system and ultimately to war. With legal disputes, fights over sovereignty, the English Civil War, lack of cultural knowledge, and inability to communicate with one another, the proclaimed peace of the mid-seventeenth century was really a period of exhaustive plays for power between waves of settlers in inhabited lands and those who sought to create a future that brought together natives and English.
The Interacting Early-Type Binary V382 Cyg
Creators: name: Yasarsoy, Bulent
name: Yakut, Kadri
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present photometric and spectroscopic data analysis and orbital period study of an early-type interacting binary system V382 Cyg by using all the available data. We made a simultaneous light and radial velocity curve solution. The derived physical parameters of the primary and secondary stellar components are $M_{1}$ = 27.9(5) $M_{\odot}$, $M_{2}$ = 20.8(4) $M_{\odot}$, $R_{1}$ = 9.7(2) $R_{\odot}$, $R_{2}$ = 8.5(2) $R_{\odot}$, $\log{(L_1/L_{\odot})} = 5.152(20)$ and $\log{(L_2/L_{\odot})} = 4.954(19)$ while the separation of the components is {\it a} = 23.4 $R_{\odot}$. Newly obtained parameters yield the distance of the system as 1466(76) pc. Analyses of the mid-eclipse times indicate a period increase of $\frac{dP}{dt}=4.2(1)\times 10^{-7}$ days/yr that can be interpreted in terms of the high mass transfer ($\frac{dM}{dt}=6.1(5)\times 10^{-6}$ $M_{\odot}$/yr) from the less massive component to the more massive component. Finally we modelled the evolution of the components using nonconservative codes and discussed the obtained results. The age of the binary system is estimated as 3.85 Myr.
description: 8 pages, 3 figures; AJ (2013)
Electronic and transport properties of kinked graphene
Creators: name: Rasmussen, Jesper Toft
name: Gunst, Tue
name: Bøggild, Peter
name: Jauho, Antti-Pekka
name: Brandbyge, Mads
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Local curvature, or bending, of a graphene sheet is known to increase the chemical reactivity presenting an opportunity for templated chemical functionalization. Using first principles calculations based on density functional theory (DFT) we investigate the reduction of the reaction barrier for adsorption of atomic hydrogen at linear bends in graphene. We find a significant lowering (15%) for realistic radii of curvature (20 Å), and that adsorption along the linear bend leads to a stable linear kink. We compute the electronic transport properties of individual and multiple kink-lines, and demonstrate how these act as efficient barriers for electron transport. In particular, two parallel kink-lines form a graphene pseudo-nanoribbon structure with a semi-metallic/semi-conducting electronic structure closely related to the corresponding isolated ribbons; the ribbon band gap translates into a transport gap for transport across the kink lines. We finally consider pseudo-ribbon based heterostructures, and propose that such structures present a novel approach for band gap engineering in nanostructured graphene.
description: 7 pages, 5 figures, reference added
The Galactic Spatial Distribution of OB Associations and Their Surrounding Supernova-Generated Superbubble
Creators: name: Higdon, J. C.
name: Lingenfelter, R. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Core collapse supernovae of massive (> 8 Mo) stars are formed primarily in OB associations and help blow giant superbubbles, where their collective shocks accelerate most of the Galactic cosmic rays. The spatial distribution of these stars is thus important to our understanding of the propagation of the observed cosmic rays. In order to better model the Galactic cosmic-ray distribution and propagation, we construct s three-dimensional spatial model of the massive star distribution based primarily on the emission of the H II envelopes surrounding the giant superbubbles which are maintaned by the ionizing radiation of the embedded O stars. The Galactic longitudinal distribution of the 205 micron N II rsdistion emitted by these H II envelopes is used to infer the spatial distribution of the superbubbles. We find that the Galactic superbubble distribution is dominated by the contribution of massive star clusters residing in the spiral arms.
description: Submitted to the Astrophysical Journal, 22 January 2013
Epigenetic factor competition reshapes the EMT landscape
Creators: name: Al-Radhawi, M. Ali
name: Tripathi, Shubham
name: Zhang, Yun
name: Sontag, Eduardo D.
name: Levine, Herbert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: The emergence of and transitions between distinct phenotypes in isogenic cells can be attributed to the intricate interplay of epigenetic marks, external signals, and gene regulatory elements. These elements include chromatin remodelers, histone modifiers, transcription factors, and regulatory RNAs. Mathematical models known as Gene Regulatory Networks (GRNs) are an increasingly important tool to unravel the workings of such complex networks. In such models, epigenetic factors are usually proposed to act on the chromatin regions directly involved in the expression of relevant genes. However, it has been well-established that these factors operate globally and compete with each other for targets genome-wide. Therefore, a perturbation of the activity of a regulator can redistribute epigenetic marks across the genome and modulate the levels of competing regulators. In this paper, we propose a conceptual and mathematical modeling framework that incorporates both local and global competition effects between antagonistic epigenetic regulators in addition to local transcription factors, and show the counter-intuitive consequences of such interactions. We apply our approach to recent experimental findings on the Epithelial-Mesenchymal Transition (EMT). We show that it can explain the puzzling experimental data as well provide new verifiable predictions.
title: Разработка алгоритмов оптимального приема сейсмических сигналов на борту подводных объектов
Creators: name: А.В. Карпов – к.воен.н., доцент, зам. начальника, ВУНЦ ВМФ «ВМА» им. Н.Г. Кузнецова А.А. Катанович – д.т.н., профессор, гл. науч. сотрудник, НИИ ОСИС ВМФ ВУНЦ ВМФ «ВМА»  E-mail: katanowitch.andrei@yandex.ru, .
Publisher: name: Издательство Радиотехника
Year: 2019

description: Рассмотрены возможности использования геоакустического канала связи с подводными объектами.
Разработаны алгоритмы приема геоакустических сигналов, предназначенные для использования в условиях движущегося подводного объекта. Выполнена обработка записей частотно-манипулированных последовательностей сигналов, полученных в экспериментах по передаче информации по сейсмическому каналу.
A Deep Learning Approach to Infer Galaxy Cluster Masses from Planck Compton$-y$ parameter maps
Creators: name: de Andres, Daniel
name: Cui, Weiguang
name: Ruppin, Florian
name: De Petris, Marco
name: Yepes, Gustavo
name: Gianfagna, Giulia
name: Lahouli, Ichraf
name: Aversano, Gianmarco
name: Dupuis, Romain
name: Jarraya, Mahmoud
name: Vega-Ferrero, Jesús
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy clusters are useful laboratories to investigate the evolution of the Universe, and accurately measuring their total masses allows us to constrain important cosmological parameters. However, estimating mass from observations that use different methods and spectral bands introduces various systematic errors. This paper evaluates the use of a Convolutional Neural Network (CNN) to reliably and accurately infer the masses of galaxy clusters from the Compton-y parameter maps provided by the Planck satellite. The CNN is trained with mock images generated from hydrodynamic simulations of galaxy clusters, with Planck's observational limitations taken into account. We observe that the CNN approach is not subject to the usual observational assumptions, and so is not affected by the same biases. By applying the trained CNNs to the real Planck maps, we find cluster masses compatible with Planck measurements within a 15% bias. Finally, we show that this mass bias can be explained by the well known hydrostatic equilibrium assumption in Planck masses, and the different parameters in the Y500-M500 scaling laws. This work highlights that CNNs, supported by hydrodynamic simulations, are a promising and independent tool for estimating cluster masses with high accuracy, which can be extended to other surveys as well as to observations in other bands.
description: 17 pages, 3 Figures and Supplementary material (+11 figures). Published in Nature Astronomy