cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strict quantization of polynomial Poisson structures
Creators: name: Barmeier, Severin
name: Schmitt, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D55, 46E25, 16S80

description: We show how combinatorial star products can be used to obtain strict deformation quantizations of polynomial Poisson structures on $\mathbb R^d$, generalizing known results for constant and linear Poisson structures to polynomial Poisson structures of arbitrary degree. We give several examples of nonlinear Poisson structures and construct explicit formal star products whose deformation parameter can be evaluated to any real value of $\hbar$, giving strict quantizations on the space of analytic functions on $\mathbb R^d$ with infinite radius of convergence. We also address further questions such as continuity of the classical limit $\hbar \to 0$, compatibility with *-involutions, and the existence of positive linear functionals. The latter can be used to realize the strict quantizations as *-algebras of operators on a pre-Hilbert space which we demonstrate in a concrete example.
description: 45 pages, final version
Rheological design of thickened alcohol-based hand rubs
Creators: name: Silva, Andreia F
name: Wood, Tiffany A
name: Hodgson, Daniel J M
name: Royer, John R
name: Thijssen, Job H J
name: Lips, Alex
name: Poon, Wilson C K
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The handleability and sensory perception of hand sanitisers by consumers affect the hygiene outcome. Spillage may result in under-dosing and poor sensory properties can lead to under-utilisation. We first propose four principles (low run off, spreadability, smoothness and non-stickiness) for designing the rheology of thickened alcohol-based hand rubs with acceptable handleability and hand feel. We then evaluate a commercial hand gel and a variety of simplified formulations thickened with microgels (Carbopol 974P, Carbopol Ultrez 20 and Sepimax Zen), or linear polymers (Jaguar HP 120 COS), and evaluate them against these design criteria. All four additives provide acceptable spreadability by shear thinning to $η\approx 10^{-1} Pa \, s$ at $\dotγ\sim 10^3 s^{-1}$. Either the finite yield stress conferred by the microgels ($σ_y \gtrsim 10 Pa$) or the increase in low-shear viscosity provided by the linear polymer ($η\gtrsim 1 Pa \, s$ at $\dotγ\lesssim 0.1 s^{-1}$) give rise to acceptably low run-off. However, the formulation using the linear polymer shows a filament breakage time of $τ_{\rm b} \approx 1 s$ in capillary rheology, which may result in stickiness and therefore a less than optimal hand feel.
description: 10 pages, 8 figures
Optical spectroscopy of the high-mass gamma-ray binary 1FGL J1018.6-5856: A probable neutron star primary
Creators: name: Strader, Jay
name: Chomiuk, Laura
name: Cheung, C. C.
name: Salinas, Ricardo
name: Peacock, Mark
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present medium-resolution optical spectroscopy with the SOAR telescope of the O star secondary of the high-mass gamma-ray binary 1FGL J1018.6-5856 to help determine whether the primary is a neutron star or black hole. We find that the secondary has a low radial velocity semi-amplitude of 11-12 km/s, with consistent values obtained for H and He absorption lines. This low value strongly favors a neutron star primary: while a black hole cannot be excluded if the system is close to face on, such inclinations are disallowed by the observed rotation of the secondary. We also find the high-energy (X-ray and gamma-ray) flux maxima occur when the star is behind the compact object along our line of sight, inconsistent with a simple model of anisotropic inverse Compton scattering for the gamma-ray photons.
description: ApJL in press
Deliverable 6.2 HYPERGRYD Communication and Dissemination Strategic Plan
Creators: name: Soley, Gisela
Publisher: name: Zenodo
Year: 2022
Subjects: Communication
Dissemination
Communication and Dissemination Strategic Plan
Exploitation
Evaluation stakeholders

description: This plan should set the overarching implementation guidelines for all project communication and dissemination, identifying communication and dissemination opportunities, targeted audiences, key messages and tools to reach them. It outlines the specific plan for the first reporting period with updates to be provided after each periodic report.
Perceived relative income inequality in adolescence: Data simulation and scripts
Creators: name: Andrews, Jack
name: Orben, Amy
name: Piera Pi-Sunyer, Blanca
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This pre-registration includes the data simulation and data analysis scripts that set out the analytical approach described in our main pre-registration file.
Designing a Metadata Scheme for the Documentation of Data Rescue Activities
Creators: name: Earls, Anona
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: Metadata
Data Rescue

description: Rescuing fragile scientific data is crucial to ensuring that this data can continue to be part of the scientific process. The complementary documentation of data rescue efforts is also essential for ongoing scientific study and future data rescue. This paper reports on a study that examined how best to document and describe data rescue activities. A mixed methods approach included a case study of 20 data rescue initiatives and a content analysis of seven descriptive metadata schemes. The results identified 13 metadata elements that were common across schemes and well suited to describing rescue projects. The findings were used to develop a core metadata scheme for the description of data rescue activities. The study was undertaken as part of the Data-at-Risk Initiative (DARI). Results of the study will help inform future DARI efforts and contribute to the knowledge base on data rescue and project-descriptive metadata.
An algebra of alignment for relational verification
Creators: name: Antonopoulos, Timos
name: Koskinen, Eric
name: Le, Ton Chanh
name: Nagasamudram, Ramana
name: Naumann, David A.
name: Ngo, Minh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1

description: Relational verification encompasses information flow security, regression verification, translation validation for compilers, and more. Effective alignment of the programs and computations to be related facilitates use of simpler relational invariants and relational procedure specs, which in turn enables automation and modular reasoning. Alignment has been explored in terms of trace pairs, deductive rules of relational Hoare logics (RHL), and several forms of product automata. This article shows how a simple extension of Kleene Algebra with Tests (KAT), called BiKAT, subsumes prior formulations, including alignment witnesses for forall-exists properties, which brings to light new RHL-style rules for such properties. Alignments can be discovered algorithmically or devised manually but, in either case, their adequacy with respect to the original programs must be proved; an explicit algebra enables constructive proof by equational reasoning. Furthermore our approach inherits algorithmic benefits from existing KAT-based techniques and tools, which are applicable to a range of semantic models.
description: v2 adds examples and an undecidability result; v3 has expository improvements (POPL version + appendix); v4 fixes the proof of Thm 4.3
Optimal distributed control of a diffuse interface model of tumor growth
Creators: name: Colli, Pierluigi
name: Gilardi, Gianni
name: Rocca, Elisabetta
name: Sprekels, Jürgen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 35K61, 49J20, 49K20, 92C50

description: In this paper, a distributed optimal control problem is studied for a diffuse interface model of tumor growth which was proposed in [A. Hawkins-Daruud, K.G. van der Zee, J.T. Oden, Numerical simulation of a thermodynamically consistent four-species tumor growth model, Int. J. Numer. Math. Biomed. Engng. 28 (2011), 3-24]. The model consists of a Cahn-Hilliard equation for the tumor cell fraction coupled to a reaction-diffusion equation for a variable representing the nutrient-rich extracellular water volume fraction. The distributed control monitors as a right-hand side the reaction-diffusion equation and can be interpreted as a nutrient supply or a medication, while the cost function, which is of standard tracking type, is meant to keep the tumor cell fraction under control during the evolution. We show that the control-to-state operator is Frechet differentiable between appropriate Banach spaces and derive the first-order necessary optimality conditions in terms of a variational inequality involving the adjoint state variables.
description: A revised version of the paper has been published on Nonlinearity 30 (2017), 2518-2546. Let us point out that in this arXiv:1601.04567 [math.AP] version there is something missing in assumption (H3) at page 6: the first initial value in (H6) must also satisfy a Neumann homogeneous condition at the boundary of the domain
Additional file 3 of Improving post-injury follow-up survey response: incorporating automated modalities
Creators: name: Scheuer, Hannah
name: Conrick, Kelsey M.
name: Mills, Brianna
name: Solano, Esther
name: Arbabi, Saman
name: Bulger, Eileen M.
name: Dotolo, Danae
name: Vil, Christopher St.
name: Vavilala, Monica S.
name: Rowhani-Rahbar, Ali
name: Moore, Megan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biophysics
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary file 3: Similarities and Differences Between Protocol 1 and Protocol 2.
Tuning the Threshold Voltage of MoS2 Field-Effect Transistors via Surface Treatment
Creators: name: Leong, Wei Sun
name: Li, Yida
name: Luo, Xin
name: Nai, Chang Tai
name: Quek, Su Ying
name: Thong, John T. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Controlling the threshold voltage (Vth) of a field-effect transistor is important for realizing robust logic circuits. Here, we report a facile approach to achieve bidirectional Vth tuning of molybdenum disulfide (MoS2) field-effect transistors. By increasing and decreasing the amount of sulfur vacancies in the MoS2 surface, the Vth of MoS2 transistors can be left- and right-shifted, respectively. Transistors fabricated on perfect MoS2 flakes are found to exhibit two-fold enhancement in mobility and a very positive Vth. More importantly, our elegant hydrogen treatment is able to tune the large Vth to a small value without any performance degradation simply by reducing the atomic ratio of S:Mo slightly; in other words, creating a certain amount of sulfur vacancies in the MoS2 surface, which generate defect states in the band gap of MoS2 that mediate conduction of a MoS2 transistor in the subthreshold regime. First-principles calculations further indicate that the edge and width of defect band can be tuned according to the vacancy density. This work not only demonstrates for the first time the ease in tuning the Vth of MoS2 transistors, but also offers a process technology solution that is critical for further development of MoS2 as a mainstream electronic material.
Role of Longitudinal Waves in Alfven-wave-driven Solar/Stellar Wind
Creators: name: SUZUKI, Takeru K.
name: SHIMIZU, Kimihiko
name: Shoda, Munehito
Publisher: name: Zenodo
Year: 2023
Subjects: MHD, solar wind, waves

description: We revisit the role of longitudinal waves in driving the solar wind. We study how the p-mode-like vertical oscillation on the photosphere affects the properties of solar winds in the framework of AlfvÅLen-wave-driven winds. We perform a series of one-dimensional magnetohydrodynamical numerical simulations from the photosphere to beyond several tens of solar radii. We find that the mass-loss rate drastically increases with the longitudinal-wave amplitude at the photosphere by up to a factor of ∼4, in contrast to the classical understanding that acoustic waves hardly affect the energetics of the solar wind. The addition of the longitudinal fluctuation induces longitudinal-to-transverse wave mode conversion in the chromosphere, which results in enhanced AlfvÅLenic Poynting flux in the corona. Consequently, coronal heating is promoted to give higher coronal density by chromospheric evaporation, leading to the increased mass-loss rate. This study clearly shows the importance of longitudinal oscillation in the photosphere and mode conversion in the chromosphere in determining the basic properties of the wind from solar-like stars.
description: {"references": ["Shimizu et al.(2022)"]}
Probing photon-ALP oscillations from the flat spectrum radio quasar 4C+21.35
Creators: name: Li, Hai-Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Flat spectrum radio quasar (FSRQ) is the most luminous blazar at the GeV energies. In this paper, we probe the photon-axion-like particle (ALP) oscillation effect on the latest very-high-energy (VHE) $γ$-ray observations of the FSRQ 4C+21.35 (PKS 1222+216). The $γ$-ray spectra are measured by the collaborations Major Atmospheric Gamma Imaging Cherenkov Telescopes (MAGIC), Very Energetic Radiation Imaging Telescope Array System (VERITAS), and Fermi Large Area Telescope (Fermi-LAT), which cover two activity VHE flares of 4C+21.35 in 2010 and 2014. We show the spectral energy distributions (SEDs) of these two phases under the null and ALP hypotheses, and set the combined limit on the ALP parameter space. The 95% $\rm C.L.$ combined limit set by the FSRQ 4C+21.35 observations measured by MAGIC, VERITAS, and Fermi-LAT in the $m_a-g_{aγ}$ plane is roughly at the photon-ALP coupling $g_{aγ} \gtrsim 8\times 10^{-12} \rm \, GeV^{-1}$ for the ALP mass $[\,2\times 10^{-10}\, {\rm eV} \lesssim m_a \lesssim 2\times 10^{-8}\, \rm eV\,]$. Compared with the constraint of NGC 1275 set by Fermi-LAT, no stringent limit result is derived with the photon-ALP coupling $g_{aγ}$ from the FSRQ 4C+21.35, while this result could slightly broaden the ALP mass $m_a$ limit at the low-mass region.
description: 9 pages, 5 figures. Published in PLB
Quantum nonreciprocal interactions via dissipative gauge symmetry
Creators: name: Wang, Yu-Xin
name: Wang, Chen
name: Clerk, Aashish A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: One-way nonreciprocal interactions between two quantum systems are typically described by a cascaded quantum master equation, and rely on an effective breaking of time-reversal symmetry as well as the balancing of coherent and dissipative interactions. Here, we present a new approach for obtaining nonreciprocal quantum interactions that is completely distinct from cascaded quantum systems, and that does not in general require broken TRS. Our method relies on a local gauge symmetry present in any Markovian Lindblad master equation. This new kind of quantum nonreciprocity has many implications, including a new mechanism for performing dissipatively-stabilized gate operations on a target quantum system. We also introduce a new, extremely general quantum-information based metric for quantifying quantum nonreciprocity.
La perception sociale du viol de la femme dans « Qu’il emporte mon secret » de Sylvie Le Bihan et « Suicide de l'odeur de girofle» de Amer El Gendy
Creators: name: Gharib, Manal
Publisher: name: figshare
Year: 2023
Subjects: Comparative and transnational literature

description: La perception sociale du viol de la femme dans « Qu’il emporte mon secret » de Sylvie Le Bihan et « Suicide de l'odeur de girofle» de Amer El Gendy
Additional file 1 of Improving post-injury follow-up survey response: incorporating automated modalities
Creators: name: Scheuer, Hannah
name: Conrick, Kelsey M.
name: Mills, Brianna
name: Solano, Esther
name: Arbabi, Saman
name: Bulger, Eileen M.
name: Dotolo, Danae
name: Vil, Christopher St.
name: Vavilala, Monica S.
name: Rowhani-Rahbar, Ali
name: Moore, Megan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biophysics
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary file 1: STROBE checklist.
Spontaneous charge carrier localization in extended one-dimensional systems
Creators: name: Vlček, Vojtěch
name: Eisenberg, Helen R.
name: Steinle-Neumann, Gerd
name: Neuhauser, Daniel
name: Rabani, Eran
name: Baer, Roi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Charge carrier localization in extended atomic systems has been described previously as being driven by disorder, point defects or distortions of the ionic lattice. Here we show for the first time by means of first-principles computations that charge carriers can spontaneously localize due to a purely electronic effect in otherwise perfectly ordered structures. Optimally-tuned range-separated density functional theory and many-body perturbation calculations within the GW approximation reveal that in trans-polyacetylene and polythiophene the hole density localizes on a length scale of several nanometers. This is due to exchange-induced translational symmetry breaking of the charge density. Ionization potentials, optical absorption peaks, excitonic binding energies and the optimally-tuned range parameter itself all become independent of polymer length as it exceeds the critical localization scale. Moreover, lattice disorder and the formation of a polaron result from the charge localization in contrast to the traditional view that lattice distortions precede charge localization. Our results can explain experimental findings that polarons in conjugated polymers form instantaneously after exposure to ultrafast light pulses.
description: 5 pages, 4 figures
RRR - Dijksterhuis - Aczel_Szaszi_Salamon_Zrubka
Creators: name: Szaszi, Barnabas
name: Aczel, Balazs
name: Salamon, Janos
name: Zrubka, Mark
Publisher: name: Open Science Framework
Year: 2022

description: Our laboratory's Implementation of the Dijksterhuis RRR protocol
Continual Spatio-Temporal Graph Convolutional Networks
Creators: name: Hedegaard, Lukas
name: Heidari, Negar
name: Iosifidis, Alexandros
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Graph-based reasoning over skeleton data has emerged as a promising approach for human action recognition. However, the application of prior graph-based methods, which predominantly employ whole temporal sequences as their input, to the setting of online inference entails considerable computational redundancy. In this paper, we tackle this issue by reformulating the Spatio-Temporal Graph Convolutional Neural Network as a Continual Inference Network, which can perform step-by-step predictions in time without repeat frame processing. To evaluate our method, we create a continual version of ST-GCN, CoST-GCN, alongside two derived methods with different self-attention mechanisms, CoAGCN and CoS-TR. We investigate weight transfer strategies and architectural modifications for inference acceleration, and perform experiments on the NTU RGB+D 60, NTU RGB+D 120, and Kinetics Skeleton 400 datasets. Retaining similar predictive accuracy, we observe up to 109x reduction in time complexity, on-hardware accelerations of 26x, and reductions in maximum allocated memory of 52% during online inference.
description: 12 pages, 6 figures, 5 tables
Their Stories Matter: Examining the Representation of Black Females in the EL Education Third Grade Curriculum.
Creators: name: Ferreira, Haley
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This study examines the ways in which black females are under served in United StatesPublic Schools. This study focuses on the lack of representation of black females inchildren’s literature and school curriculum, as well as why that is problematic.The researcher conducted a content analysis of the required and recommended readinglisted in the EL Education third grade curriculum. This curriculum is used in all of WakeCounty Public School System and beyond. The researcher found that black females wereunder represented as protagonists and authors. Based on these findings, the researcherrecommends that all librarians in Wake county be active and intentional in providingresources that show and celebrate the lives of black females. It is also recommended thatlibrarians not only provide these resources in the library, but also support classroomteachers by collaborating on instruction to ensure that diverse books are included in thecurriculum.
MS Gr. class. c. 3 561
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1012 col. 33 col. 34. Demetrius Laco
Drawing by Giuseppe (?) Casanova
School Library Media Center Web Sites in North Carolina
Creators: name: Hunsinger, Jamie Beth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005
Subjects: School libraries
World Wide Web--School libraries
Internet--School libraries

description: This study synthesizes and applies current criteria for quality school library media center (SLMC) websites to a random sample of web sites from public schools in the state of North Carolina and then compares the results to findings of earlier studies by Poe, Jurkowski, and Baumbach. Twenty web sites were accessed on 1 June 2005 and compared. Although the expectation was that the SLMC web sites would show considerable advances since a similar study conducted by Kimberly Poe in 1999, such was not the case. In comparison with more recent and larger studies by Jurkowski and Baumbach, the sampled web sites do not show any significant advances, with the possible exception of the North Carolina web sites placing more emphasis on either of the important service areas: information literacy and reading encouragement.  Half of the study sites emphasized features of either information literacy skills or reading encouragement, but not both. Two high schools, one middle school, and one elementary school included only information literacy skills features. The six schools featuring only reading encouragement elements were all elementary schools. This result may be an artifact of the small sample size or it may reflect programmatic preferences. A future study examining this is recommended.
Quadrature formulas for Bessel polynomials
Creators: name: Matsumura, Hideki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 33C45, 65D32, 14G05

description: A quadrature formula is a formula computing a definite integration by evaluation at finite points. The existence of certain quadrature formulas for orthogonal polynomials is related to interesting problems such as Waring's problem in number theory and spherical designs in algebraic combinatorics. Sawa and Uchida proved the existence and the non-existence of certain rational quadrature formulas for the weight functions of certain classical orthogonal polynomials. Classical orthogonal polynomials belong to the Askey-scheme, which is a hierarchy of hypergeometric orthogonal polynomials. Thus, it is natural to extend the work of Sawa and Uchida to other polynomials in the Askey-scheme. In this article, we extend the work of Sawa and Uchida to the weight function of the Bessel polynomials. In the proofs, we use the Riesz--Shohat theorem and Newton polygons. It is also of number theoretic interest that proofs of some results are reduced to determining the sets of rational points on elliptic curves.
description: 14 pages
A note on initial state entanglement in inflationary cosmology
Creators: name: Kanno, Sugumi
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give a new interpretation of the effect of initial state entanglement on the spectrum of vacuum fluctuations. We consider an initially entangled state between two free massive scalar fields in de Sitter space. We construct the initial state by making use of a Bogoliubov transformation between the Bunch-Davies vacuum and a four mode squeezed state, and then derive the exact power spectrum for one of the scalar fields. We demonstrate that an oscillatory spectrum hardly appears for the initially entangled state unless an ad hoc absolute value of the Bogoliubov coefficients is chosen.
description: 10 pages
Wigner distribution of Sine Gordon and Kink solitons
Creators: name: Radhakrishnan, Ramkumar
name: Ojha, Vikash Kumar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Wigner distributions play a significant role in formulating the phase space analogue of quantum mechanics. The Schrodinger wave-functional for solitons is needed to derive it for solitons. The Wigner distribution derived can further be used for calculating the charge distributions, current densities and wave function amplitude in position or momentum space. It can be also used to calculate the upper bound of the quantum speed limit time. We derive and analyze the Wigner distributions for Kink and Sine-Gordon solitons by evaluating the Schrodinger wave-functional for both solitons. The charge, current density, and quantum speed limit for solitons are also discussed which we obtain from the derived analytical expression of Wigner distributions.
10 Gründe für Open Access
Creators: name: Strauß, Helene
Publisher: name: Zenodo
Year: 2021
Subjects: Open Access

description: Die Infografik "10 Gründe für Open Access" wurde im Rahmen des BMBF-geförderten Projekts open-access.network erstellt. Sie liegt als PDF- und PPTX-Datei zur einfachen Nachnutzung vor. Die aktualisierte Version beinhaltet das neue Projektlogo, außerdem steht eine englische Version zur Verfügung.
The Repository of Last Resort? Three-Dimensional Objects in Archives
Creators: name: Jeffrey, Dean H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005
Subjects: Archival Materials--Artifacts
Archival Materials--Three Dimensional Objects
Archival Materials--Realia

description: This study documents issues involved in the collection, use, cataloging, and storage of three-dimensional objects in archives. It presents the results of in-person interviews conducted with five college and university archivists regarding the issues of objects in archives.  Little has been written regarding collecting and managing objects in archives. This study summarizes the available literature on the topic and addresses some of the differences between museum practice and archival practice. The study finds that three-dimensional objects have value as objects for display but often have little other value to researchers in archives. If the acquisition of objects reflects the mission of the archives and adheres to a collection policy, the objects are more likely to have research value beyond their use in displays.
Semicontinuity of 4d N=2 spectrum under renormalization group flow
Creators: name: Xie, Dan
name: Yau, Shing-Tung
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study renormalization group flow of four dimensional N=2 SCFTs defined by isolated hypersurface three-fold singularities. We define the spectrum of N=2 theory as the set of scaling dimensions of the parameters on the Coulomb branch, which include Coulomb branch moduli, mass parameters and coupling constants. We prove that the spectrum of those theories is semicontinous under the RG flow on the Coulomb branch using the mathematical result about the singularity spectra under deformation. The semicontinuity behavior of N=2 spectrum implies a theorem under relevant and Coulomb branch moduli deformation, the absence of dangerous irrelevant deformations and can be taken as the necessary condition for the ending point of a RG flow. This behavior is also true for (c,c) ring deformation of two dimensional Landau-Ginzburg model with (2,2) supersymmetry.
description: 12 pages
Randomized Group-Greedy Method for Large-Scale Sensor Selection Problems
Creators: name: Nagata, Takayuki
name: Yamada, Keigo
name: Nakai, Kumi
name: Saito, Yuji
name: Nonomura, Taku
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The randomized group-greedy method and its customized method for large-scale sensor selection problems are proposed. The randomized greedy sensor selection algorithm is applied straightforwardly to the group-greedy method, and a customized method is also considered. In the customized method, a part of the compressed sensor candidates is selected using the common greedy method or other low-cost methods. This strategy compensates for the deterioration of the solution due to compressed sensor candidates. The proposed methods are implemented based on the D- and E-optimal design of experiments, and numerical experiments are conducted using randomly generated sensor candidate matrices with potential sensor locations of 10,000--1,000,000. The proposed method can provide better optimization results than those obtained by the original group-greedy method when a similar computational cost is spent as for the original group-greedy method. This is because the group size for the group-greedy method can be increased as a result of the compressed sensor candidates by the randomized algorithm. Similar results were also obtained in the real dataset. The proposed method is effective for the E-optimality criterion, in which the objective function that the optimization by the common greedy method is difficult due to the absence of submodularity of the objective function. The idea of the present method can improve the performance of all optimizations using a greedy algorithm.
Usage Trends in a Digital Library:  A Case Study of Iupac.org
Creators: name: Slovney, Sean M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004
Subjects: Surveys
Web analytics
Digital libraries

description: The International Union of Practical and Applied Chemistry (IUPAC) is a digital library that is host to numerous collections and journals on chemistry. In response to increasing demand over the last few years, they want to improve the Iupac.org website. To do so, they must first determine how the site is being used, so that they may make the appropriate changes that would best improve the digital library. Therefore, the goal of this study is to analyze web usage logs and survey users so that future designs of iupac.org will adequately address the needs of its target audience.
On the perturbative aspects of deformed Yang-Mills theory
Creators: name: Lai, John
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Centre-stabilised $SU(N)$ Yang-Mills theories on $\mathbb{R}^3 \times S^1$ are QCD-like theories that can be engineered to remain weakly-coupled at all energy scales by taking the $S^1$ circle length $L$ to be sufficiently small. In this regime, these theories admit effective long-distance descriptions as Abelian $U(1)^{N-1}$ gauge theories on $\mathbb{R}^3$, and semiclassics can be reliably employed to study non-perturbative phenomena such as colour confinement and the generation of mass gaps in an analytical setting. At the perturbative tree level, the long-distance effective theory contains $(N-1)$ free photons with identical gauge couplings $g^2_3 \equiv g^2/L$. Vacuum polarisation effects, from integrating out heavy charged fields, lift this degeneracy to give $\floor{\frac{N}{2}}$ distinct values: $g^2(\frac{2}{L})\lesssim g_{3,\ell}^2 L \lesssim g^2(\frac{2π}{NL}) $. In this work, we calculate these corrections to one-loop order in theories where the centre-symmetric vacuum is stabilised by $2\leq n_f \leq 5$ massive adjoint Weyl fermions with masses of order $m_λ\sim \frac{2π}{NL}$, (also known as "deformed Yang-Mills,") and show that our results agree with those found in previous studies in the $m_λ\to 0$ limit. Then, we show that our result has an intuitive interpretation as the running of the coupling in a "lattice momentum" in the context of the non-perturbative "emergent latticised fourth dimension" in the $N\to \infty$, fixed-$NL$ limit.
description: 34 pages, 4 figures
High precision measurement of the associated strangeness production in proton proton interactions
Creators: name: TOF Collaboration
name: Jowzaee, S.
name: Borodina, E.
name: Clement, H.
name: Doroshkevich, E.
name: Dzhygadlo, R.
name: Ehrhardt, K.
name: Eyrich, W.
name: Gast, W.
name: Gillitzer, A.
name: Grzonka, D.
name: Hauenstein, F.
name: Klaja, P.
name: Kober, L.
name: Kilian, K.
name: Krapp, M.
name: Mertens, M.
name: Moskal, P.
name: Ritman, J.
name: Roderburg, E.
name: Röder, M.
name: Schroeder, W.
name: Sefzick, T.
name: Smyrski, J.
name: Wintz, P.
name: Wüstner, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A new high precision measurement of the reaction pp -> pK+Lambda at a beam momentum of 2.95 GeV/c with more than 200,000 analyzed events allows a detailed analysis of differential observables and their inter-dependencies. Correlations of the angular distributions with momenta are examined. The invariant mass distributions are compared for different regions in the Dalitz plots. The cusp structure at the N Sigma threshold is described with the Flatté formalism and its variation in the Dalitz plot is analyzed.
description: accepted for publication in Eur. Phys. J.A
AutoLink: Self-supervised Learning of Human Skeletons and Object Outlines by Linking Keypoints
Creators: name: He, Xingzhe
name: Wandt, Bastian
name: Rhodin, Helge
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Structured representations such as keypoints are widely used in pose transfer, conditional image generation, animation, and 3D reconstruction. However, their supervised learning requires expensive annotation for each target domain. We propose a self-supervised method that learns to disentangle object structure from the appearance with a graph of 2D keypoints linked by straight edges. Both the keypoint location and their pairwise edge weights are learned, given only a collection of images depicting the same object class. The resulting graph is interpretable, for example, AutoLink recovers the human skeleton topology when applied to images showing people. Our key ingredients are i) an encoder that predicts keypoint locations in an input image, ii) a shared graph as a latent variable that links the same pairs of keypoints in every image, iii) an intermediate edge map that combines the latent graph edge weights and keypoint locations in a soft, differentiable manner, and iv) an inpainting objective on randomly masked images. Although simpler, AutoLink outperforms existing self-supervised methods on the established keypoint and pose estimation benchmarks and paves the way for structure-conditioned generative models on more diverse datasets. Project website: https://xingzhehe.github.io/autolink/.
description: NeurIPS 2022
The sign of active galactic nucleus quenching in a merger remnant with radio jets
Creators: name: Ichikawa, Kohei
name: Ueda, Junko
name: Shidatsu, Megumi
name: Kawamuro, Taiki
name: Matsuoka, Kenta
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate optical, infrared, and radio active galactic nucleus (AGN) signs in the merger remnant Arp 187, which hosts luminous jets launched in the order of $10^5$ yr ago but whose present-day AGN activity is still unknown. We find AGN signs from the optical BPT diagram and infrared [OIV]25.89 $μ$m line, originating from the narrow line regions of AGN. On the other hand, Spitzer/IRS show the host galaxy dominated spectra, suggesting that the thermal emission from the AGN torus is considerably small or already diminished. Combining the black hole mass, the upper limit of radio luminosity of the core, and the fundamental plane of the black hole enable us to estimate X-ray luminosity, which gives $<10^{40}$ erg s$^{-1}$. Those results suggest that the AGN activity of Arp 187 has already been quenched, but the narrow line region is still alive owing to the time delay of emission from the past AGN activity.
description: 5 pages, 2 figures, accepted for publication in PASJ
Additional file 1 of Community partnership approaches to safe sleep (CPASS) program evaluation
Creators: name: Lowell, Gina S.
name: Sanford, Jillian
name: Radecki, Linda
name: Hanes, Allison
name: Kozial, Bonnie
name: Clark, Felicia
name: McCain, Jennifer
name: Abbasi, Asim
name: Dalabih, Sevilay
name: Hoffman, Benjamin D.
name: Lee, Lois K.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 1. CPASS Logic Model
Some observations about the MOLSCAT
Creators: name: Sharma, M. K.
name: Sharma, Monika
name: Chandra, Suresh
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: For calculation of cross sections for collisional transitions between rotational levels in a molecule, a computer code, MOLSCAT has been developed by Hutson \& Green (1994). For the transitions between rotational levels in H$_2$CS due to collisions with He atom, we have calculated cross sections under the CS approximation. In the MOLSCAT, there is provision to input more than one values of total energies. Here, for example, we are interested in the cross sections for total energy 11 cm$^{-1}$. The calculations have been done for the single energy 11 cm$^{-1}$ and for eight combinations, having energies (11, 12), (12, 11), (10, 11), (11, 10), (11, 12, 13), (9, 10, 11), (10, 11, 12), (9, 10, 11, 12, 13) cm$^{-1}$. We have found that the cross sections for 11 cm$^{-1}$, in general, differ from one another in all the 9 calculations. The reason for the difference in the results appears that the MOLSCAT uses the intermediate data of calculations for one energy, in the calculations for other energies. Under such circumstances, the possible suggestion can be to run the MOLSCAT for a single energy at a time.
description: 9 pages
A Case for FRBR and Semantic Wikis in Enterprise Information Environments
Creators: name: Perasso, Guillermo
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: FRBR Semantic Wiki

description: Wikis allow users to collaboratively create and maintain content. As a new platform for wiki
sites, Semantic wikis provide additional means to annotate the content to add structure. These
Semantic Wiki sites are experiencing an enormous increase in popularity because structured
data is more usable and thus more valuable than unstructured data. This study proposes the use
of a semantic wiki to develop an web portal to collect and organize the information maintained in
an Enterprise's content management system. The ontology selected to support the conceptual
infrastructure of the portal is based on a scheme inspired from an IFLA proposition known as
Functional Requirements for Bibliographic Records (FRBR).
The paper introduces a model for the specification of mappings between FRBR entities and the
organization's information artifacts. Also, the information system stakeholders - process owners,
document creators, SMEs (Subject Matter Experts), support reps, end users, etc.- are also defined
and interrelated using simple standard ontologies and vocabularies such as Friend-of-a-Friend
(FOAF), RDF and OWL. The FRBR ontology and the web portal are developed using the
platform provided by Semantic MediaWiki, an extension of MediaWiki, the platform for
Wikipedia. The main features for standard vocabularies integration and semantic queries and
searches are summarized. Finally, a number of metrics and indicators are presented as a
reference for the portal's project managers and sponsors to evaluate the performance and
effectiveness of the tool and help them make decisions about future initiatives, enhancements
and new information requirements implementation.
Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2021
Creators: name: HFLAV Collaboration
name: Amhis, Y.
name: Banerjee, Sw.
name: Ben-Haim, E.
name: Bertholet, E.
name: Bernlochner, F. U.
name: Bona, M.
name: Bozek, A.
name: Bozzi, C.
name: Brodzicka, J.
name: Chobanova, V.
name: Chrzaszcz, M.
name: Duell, S.
name: Egede, U.
name: Gersabeck, M.
name: Gershon, T.
name: Goldenzweig, P.
name: Hayasaka, K.
name: Johnson, D.
name: Kenzie, M.
name: Kuhr, T.
name: Leroy, O.
name: Lusiani, A.
name: Ma, H. -L.
name: Margoni, M.
name: Miyabayashi, K.
name: Mizuk, R.
name: Naik, P.
name: Petric, T. Nanut
name: Oyanguren, A.
name: Prim, M. T.
name: Pompili, A.
name: Roney, M.
name: Rotondo, M.
name: Schneider, O.
name: Schwanda, C.
name: Schwartz, A. J.
name: Serrano, J.
name: Soffer, A.
name: Tonelli, D.
name: Urquijo, P.
name: Yelton, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper reports world averages of measurements of $b$-hadron, $c$-hadron, and $τ$-lepton properties obtained by the Heavy Flavour Averaging Group using results available before April 2021. In rare cases, significant results obtained several months later are also used. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays, and Cabibbo-Kobayashi-Maskawa matrix elements.
description: 568 pages. Update following journal review. No results changed. arXiv admin note: substantial text overlap with arXiv:1909.12524, arXiv:1612.07233, arXiv:1412.7515, arXiv:1207.1158, arXiv:1010.1589
Transport evidence of superlattice Dirac cones in graphene monolayer on twisted boron nitride substrate
Creators: name: Cao, Shimin
name: Chen, Mantang
name: Zeng, Jiang
name: Ma, Ning
name: Zheng, Runjie
name: Feng, Ya
name: Yan, Shili
name: Liu, Jing
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Xie, X. C.
name: Chen, Jian-Hao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Strong band engineering in two-dimensional (2D) materials can be achieved by introducing moiré superlattices, leading to the emergence of various novel quantum phases with promising potential for future applications. Presented works to create moiré patterns have been focused on a twist embedded inside channel materials or between channel and substrate. However, the effects of a twist inside the substrate materials on the unaligned channel materials are much less explored. In this work, we report the realization of superlattice multi-Dirac cones with the coexistence of the main Dirac cone in a monolayer graphene (MLG) on a ~0.14° twisted double-layer boron nitride (tBN) substrate. Transport measurements reveal the emergence of three pairs of superlattice Dirac points around the pristine Dirac cone, featuring multiple metallic or insulating states surrounding the charge neutrality point (CNP). Displacement field tunable and electron-hole asymmetric Fermi velocities are indicated from temperature dependent measurements, along with the gapless dispersion of superlattice Dirac cones. The experimental observation of multiple Dirac cones in MLG/tBN heterostructure is supported by band structure calculations employing periodic moiré potential. Our results unveil the potential of using twisted substrate as a universal band engineering technique for 2D materials regardless of lattice matching and crystal orientations, which might pave the way for a new branch of twistronics.
description: 13 pages, 4 figures
ESR modes in a Strong-Leg Ladder in the Tomonaga-Luttinger Liquid Phase
Creators: name: Ozerov, M.
name: Maksymenko, M.
name: Wosnitza, J.
name: Honecker, A.
name: Landee, C. P.
name: Turnbull, M. M.
name: Furuya, S. C.
name: Giamarchi, T.
name: Zvyagin, S. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic excitations in the strong-leg quantum spin ladder compound (C$_7$H$_{10}$N)$_2$CuBr$_4$ (known as DIMPY) in the field-induced Tomonaga-Luttinger spin liquid phase are studied by means of high-field electron spin resonance (ESR) spectroscopy. The presence of a gapped ESR mode with unusual non-linear frequency-field dependence is revealed experimentally. Using a combination of analytic and exact diagonalization methods, we compute the dynamical structure factor and identify this mode with longitudinal excitations in the antisymmetric channel. We argue that these excitations constitute a fingerprint of the spin dynamics in a strong-leg spin-1/2 Heisenberg antiferromagnetic ladder and owe its ESR observability to the uniform Dzyaloshinskii-Moriya interaction.