cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurement of D0-D0bar mixing and search for CP violation in D0 -> K+K-, pi+pi- decays with the full Belle data set
Creators: name: Belle Collaboration
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report an improved measurement of D0-D0bar mixing and a search for CP violation in D0 decays to CP-even final states K+K- and pi+pi-. The measurement is based on the final Belle data sample of 976/fb. The results are y_CP=(1.11 +- 0.22 +- 0.09)% and A_Gamma=(-0.03 +- 0.20 +- 0.07)%, where the first uncertainty is statistical and the second is systematic.
description: 8 pages, 5 figures; submitted to Phys. Lett. B
Who are they and why are they here?: A user analysis of the digital library Documenting the American South: Beginnings to 1920
Creators: name: Polutta, Melanie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999
Subjects: Documenting the American South: Beginnings to 1920
User analysis
Digital libraries
Marketing analysis

description: This research starts with the idea that user analysis is necessary to provide marketing guidance in improving a product and increasing its audience.  The product is the website Documenting the American South: Beginnings to 1920 (http://metalab.unc.edu/docsouth/). The methods for obtaining the information are an optional user survey, supplemented with web log analysis.  The survey data were then compared to a survey of the general Internet population.  The study found that the users of the website are similar to the general Internet population on many dimensions, but that there are enough differences to suggest a divergence.  Comparison points suggest that the difference lies in the newcomers to the Internet, who are more likely to include a larger proportion of humanities scholars than the more experienced population.  From this and a variety of other data from the survey and web logs, an assortment of ways to publicize the website in specific populations are suggested, as well as a few ways to improve the website.
Protocols for classically training quantum generative models on probability distributions
Creators: name: Kasture, Sachin
name: Kyriienko, Oleksandr
name: Elfving, Vincent E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum Generative Modelling (QGM) relies on preparing quantum states and generating samples from these states as hidden - or known - probability distributions. As distributions from some classes of quantum states (circuits) are inherently hard to sample classically, QGM represents an excellent testbed for quantum supremacy experiments. Furthermore, generative tasks are increasingly relevant for industrial machine learning applications, and thus QGM is a strong candidate for demonstrating a practical quantum advantage. However, this requires that quantum circuits are trained to represent industrially relevant distributions, and the corresponding training stage has an extensive training cost for current quantum hardware in practice. In this work, we propose protocols for classical training of QGMs based on circuits of the specific type that admit an efficient gradient computation, while remaining hard to sample. In particular, we consider Instantaneous Quantum Polynomial (IQP) circuits and their extensions. Showing their classical simulability in terms of the time complexity, sparsity and anti-concentration properties, we develop a classically tractable way of simulating their output probability distributions, allowing classical training to a target probability distribution. The corresponding quantum sampling from IQPs can be performed efficiently, unlike when using classical sampling. We numerically demonstrate the end-to-end training of IQP circuits using probability distributions for up to 30 qubits on a regular desktop computer. When applied to industrially relevant distributions this combination of classical training with quantum sampling represents an avenue for reaching advantage in the NISQ era.
description: 9 pages, 10 figures, draft version
ibibliometrics: Measuring Ten Years of Free-Range Academic Web Publishing
Creators: name: Sizemore, Donald
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003
Subjects: Information systems
Bibliometrics
Publishing Trends
Digital libraries

description: This research is a bibliometric study of descriptive information on the individual sites comprising the ibiblio.org academic web server. It hopes to acquire a snapshot of the general content, age, and sizes of the collections as a whole, and to look for any patterns or similarities among the publishing habits of its contributors. Initial measurements of dates, sizes and genres of ibiblio collections and other web directories revealed that one of the Internet's oldest and largest public archives suffers little of the stagnation and collection role that would be expected of such an organization. Its content slants towards the Arts and Entertainment, Technology, and History UDC categories, and that most of its physical collections web space is consumed by multimedia content.
Information Across the Atlantic: a bibliography for company information in the US and UK
Creators: name: Lubin, Lesley I.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999
Subjects: Business information services--Great Britain
Business intelligence--Library resources--United States
Business information services--United States

description: Laws in various countries demand a variety of information to be provided. This bibliography presents a variety of sources necessary to a researcher seeking information on United States and/or United Kingdom companies. It was created to aid library or information professionals in need of company information from these two countries. Research was conducted both in the US and the UK. Materials or resources were examined primarily in Oxford University libraries and the University of North Carolina at Chapel Hill. The bibliography is annotated and arranged by the following categories: basic company directories, company ownership and personnel, company financial information, Internet resources, and newspapers and periodicals. Its purpose is to identify key sources for finding both public and private company information in both countries.
Three-gluon correlator contribution to Sivers asymmetry in SIDIS
Creators: name: Dai, Ling-Yun
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the Sivers asymmetry in semi-inclusive deep inelastic scattering: the three-gluon correlation function contribution. At the cross section level, we establish the matching between the twist-3 collinear factorization approach and the transverse momentum dependent factorization formalism at the moderate transverse momentum region. The so-called coefficient functions when one expands the quark Sivers function in terms of three-gluon correlation functions are derived, which are essential components in the usual transverse momentum dependent evolution formalism. Finally we calculate the transverse-momentum-weighted spin-dependent differential cross section at the next-to-leading order, from which we identify the off-diagonal/three-gluon correlation contribution to the QCD collinear evolution of the twist-3 Qiu-Sterman function.
description: 7 pages
Preserving Semantics in Textual Adversarial Attacks
Creators: name: Herel, David
name: Cisneros, Hugo
name: Mikolov, Tomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The growth of hateful online content, or hate speech, has been associated with a global increase in violent crimes against minorities [23]. Harmful online content can be produced easily, automatically and anonymously. Even though, some form of auto-detection is already achieved through text classifiers in NLP, they can be fooled by adversarial attacks. To strengthen existing systems and stay ahead of attackers, we need better adversarial attacks. In this paper, we show that up to 70% of adversarial examples generated by adversarial attacks should be discarded because they do not preserve semantics. We address this core weakness and propose a new, fully supervised sentence embedding technique called Semantics-Preserving-Encoder (SPE). Our method outperforms existing sentence encoders used in adversarial attacks by achieving 1.2x - 5.1x better real attack success rate. We release our code as a plugin that can be used in any existing adversarial attack to improve its quality and speed up its execution.
description: 8 pages, 4 figures
Nitzschia tabellaria Grunow
Creators: name: Liu, Qi
name: Wu, Weiwei
name: Wang, Jie
name: Feng, Jia
name: Lv, Junping
name: Kociolek, John Patrick
name: Xie, Shulian
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Menoponidae
Nitzschia
Nitzschia tabellaria

description: Nitzschia tabellaria (Grunow) Grunow in Cleve & Grunow 1880
(Figs 13–24, 31–36).
 Synonyms: N. sinuata var. tabellaria (Grunow) Grunow in Van Heurck 1881; Grunowia tabellaria (Grunow) Rabenhorst 1864 Basionym: Denticula tabellaria Grunow 1862: 548
Specimens from China occur as solitary frustules. Valves are rhomboid to lanceolate with a broadly rounded margin at the center and round apices. The raphe is situated in a strongly eccentric keel. The fibulae are clearly visible, elongate and occupy about one-half the valve surface, numbering 6–8 in 10 μm. Valve length is 11.5–20.0 μm and breadth is 5.0–7.0 μm (n=20). Uniseriate striae are distinctly punctate, parallel around the center to nearly radiate towards the ends, often 3–4 striae occur between fibulae. Fibulae number 22–23 in 10 μm. The fibulate raphe systems occur on the opposite sides of the frustule.
 Distribution and ecology of the Chinese specimens: —In Shanxi province, Niangziguan spring basin, China, pH 8.2, temperature 17°C; collected in Lake Pingyang attached to a large stone.
 Observations: —In SEM, valves have a distinct central inflation and taper to narrowly-rounded apices (Fig. 31). Externally, striae are composed of individual, circular to elongate areolae with small occlusions (Fig. 31). The keel is a simple ridge extending marginally from apex to apex (Fig. 31). The raphe is filiform and without central raphe ending (Fig. 32). The distal raphe ends are clearly hooked towards the same side of the valve (Figs 31, 33).
Internally, uniseriate striae are composed of individual elongate simple pores (Fig. 35). The canal raphe is subtended by fibulae extending about one-half the valve surface (Fig. 34). The canal raphe opens to the valve interior through a series of elliptical portulae (Fig. 35). A central nodule is absent (Fig. 35). The distal raphe ends terminate as helictoglossae and are positioned on the mantle at the apex (Figs 34, 36).
description: Published as part of Liu, Qi, Wu, Weiwei, Wang, Jie, Feng, Jia, Lv, Junping, Kociolek, John Patrick & Xie, Shulian, 2017, Valve ultrastructure of Nitzschia shanxiensis nom. nov., stat. nov. and N. tabellaria (Bacillariales, Bacillariophyceae), with comments on their systematic position, pp. 228-236 in Phytotaxa 312 (2) on pages 231-233, DOI: 10.11646/phytotaxa.312.2.5, http://zenodo.org/record/13701405
Proton capture in compact dark stars and observable implications
Creators: name: Kamenetskaia, Boris Betancourt
name: Brenner, Anja
name: Ibarra, Alejandro
name: Kouvaris, Chris
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Asymmetric dark matter under certain conditions could form compact star-like objects, which can be searched either through gravitational lensing or by observation of gravitational waves from binaries involving such compact objects. In this paper we analyze possible signatures of such dark stars made of asymmetric dark matter with a portal to the Standard Model. We argue that compact dark stars could capture protons and electrons from the interstellar medium, which then accumulate in the core of the dark star, forming a very hot gas that emits X-rays or $γ$-rays. For dark matter parameters compatible with current laboratory constraints, compact dark stars could be sufficiently luminous to be detected at the Earth as point sources in the X-ray or $γ$-ray sky.
description: This is the Accepted Manuscript version of an article accepted for publication in Journal of Cosmology and Astroparticle Physics. Neither SISSA Medialab Srl nor IOP Publishing Ltd is responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1475-7516/2023/10/027
Geometry of Matrix Decompositions Seen Through Optimal Transport and Information Geometry
Creators: name: Modin, Klas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 15A23, 53C21, 58B20, 15A18, 49M99, 65F15, 65F40

description: The space of probability densities is an infinite-dimensional Riemannian manifold, with Riemannian metrics in two flavors: Wasserstein and Fisher--Rao. The former is pivotal in optimal mass transport (OMT), whereas the latter occurs in information geometry---the differential geometric approach to statistics. The Riemannian structures restrict to the submanifold of multivariate Gaussian distributions, where they induce Riemannian metrics on the space of covariance matrices. Here we give a systematic description of classical matrix decompositions (or factorizations) in terms of Riemannian geometry and compatible principal bundle structures. Both Wasserstein and Fisher--Rao geometries are discussed. The link to matrices is obtained by considering OMT and information geometry in the category of linear transformations and multivariate Gaussian distributions. This way, OMT is directly related to the polar decomposition of matrices, whereas information geometry is directly related to the $QR$, Cholesky, spectral, and singular value decompositions. We also give a coherent description of gradient flow equations for the various decompositions; most flows are illustrated in numerical examples. The paper is a combination of previously known and original results. As a survey it covers the Riemannian geometry of OMT and polar decompositions (smooth and linear category), entropy gradient flows, and the Fisher--Rao metric and its geodesics on the statistical manifold of multivariate Gaussian distributions. The original contributions include new gradient flows associated with various matrix decompositions, new geometric interpretations of previously studied isospectral flows, and a new proof of the polar decomposition of matrices based an entropy gradient flow.
description: Major revision of the first version. 61 pages, 10 figures
CSS Spa: A System for Parsing & Aggregation of Cascading Style Sheets
Creators: name: Fiser, Noel Reed
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007
Subjects: Computer graphics
Web sites--Design
Cascading style sheets
Web publishing

description: Cascading Style Sheets (CSS) represent a powerful means for Web designers to separate HTML content from presentation. CSS solves many design-related issues, but it also creates new ones, including document management issues and "code bloat." The CSS Spa has been created to assist designers with CSS management. After spidering a Web site's CSS content, the CSS Spa follows a series of rules to accomplish this: enforcement of atomic separation; elimination of non-CSS style elements; elimination of inline styles; normalization attributes and values; creation of new CSS "superclasses;" and finally removal of any unused CSS. The CSS Spa tool was developed using PHP and MySQL, then tested on two sets of sites: three simple learning cases and three real-world Web sites. Each of these test sites represents a different CSS challenge: reliance on older HTML styles; heavy use of inline styles; and enhancement of an already-efficient design.
The linearized second law for any higher curvature gravity with the scalar and the electromagnetic fields
Creators: name: Wang, Xin-Yang
name: Jiang, Jie
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The first law of black hole thermodynamics is suitable for any diffeomorphism invariant gravity, and the entropy in the first law is the Wald entropy which is highly dependent on the non-minimal coupling interactions in the theory of gravity. However, whether the Wald entropy still satisfies the second law needs to be investigated. The entropy of black holes obeying the linearized second law in arbitrary high-order curvature gravity is given, which can be written as the Wald entropy with correction terms. It indicates that the Wald entropy is not commonly obeying the linearized second law for any high-order curvature gravity. When the interactions of gravity with matter fields are included in the theory of gravity, the entropy of black holes obeying the linearized second law has not been obtained in this case. Considering any high-order curvature gravity with the scalar and the electromagnetic fields, from the Raychaudhuri equation, the entropy obeying the linearized second law is generally obtained, which can be expressed as the Wald entropy with correction terms as well. The entropy does not include the contribution from the electromagnetic fields, and the correction terms contain the contribution from the minimal coupling interaction between gravity and the scalar fields. Since the entropy satisfying the linearized second law depends only on the non-minimal coupling interaction of gravity in previous research, this result upends our understanding of the entropy of black holes obeying the linearized second law in any gravitational theory with matter fields.
description: 17 pages
A Radiation Viewpoint of Reconfigurable Reflectarray Elements: Performance Limit, Evaluation Criterion and Design Process
Creators: name: Liu, Changhao
name: Wu, You
name: Zhou, Songlin
name: Yang, Fan
name: Ren, Yongli
name: Xu, Shenheng
name: Li, Maokun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Reconfigurable reflectarray antennas (RRAs) have rapidly developed with various prototypes proposed in recent literatures. However, designing wideband, multiband, or high-frequency RRAs faces great challenges, especially the lengthy simulation time due to the lack of systematic design guidance. The current scattering viewpoint of the RRA element, which couples antenna structures and switches during the design process, fails to address these issues. Here, we propose a novel radiation viewpoint to model, evaluate, and design RRA elements. Using this viewpoint, the design goal is to match the element impedance to a characteristic impedance pre-calculated by switch parameters, allowing various impedance matching techniques developed in classical antennas to be applied in RRA element design. Furthermore, the theoretical performance limit can be pre-determined at given switch parameters before designing specific structures, and the constant loss curve is suggested as an intuitive tool to evaluate element performance in the Smith chart. The proposed method is validated by a practical 1-bit RRA element with degraded switch parameters. Then, a 1-bit RRA element with wideband performance is successfully designed using the proposed design process. The proposed method provides a novel perspective of RRA elements, and offers a systematic and effective guidance for designing wideband, multiband, and high-frequency RRAs.
description: Accepted by IEEE Transactions on Antennas and Propagation
Strong $D^{*}_sD_{s}η^{(\prime)}$ and $B^{*}_sB_{s}η^{(\prime)}$ vertices from QCD light-cone sum rules
Creators: name: Agaev, S. S.
name: Azizi, K.
name: Sundu, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The strong $D^{*}_sD_{s}η^{(\prime)}$ and $B^{*}_sB_{s}η^{(\prime)}$ vertices are studied and the relevant couplings are calculated in the context of the light-cone QCD sum rule method with twist-4 accuracy by including the next-to-leading order corrections. In the analysis, both the quark and gluon components of the $η$ and $η^{\prime}$ mesons and the axial anomaly corrected higher twist distributions are included.
description: 15 Pages and 6 Figures
Measurement of the angle between jet axes in pp collisions at $\sqrt{s} = 5.02$ TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This article reports measurements of the angle between differently defined jet axes in pp collisions at $\sqrt{s} = 5.02$ TeV carried out by the ALICE Collaboration. Charged particles at midrapidity are clustered into jets with resolution parameters $R=0.2$ and 0.4. The jet axis, before and after Soft Drop grooming, is compared to the jet axis from the Winner-Takes-All (WTA) recombination scheme. The angle between these axes, $ΔR_{\mathrm{axis}}$, probes a wide phase space of the jet formation and evolution, ranging from the initial high-momentum-transfer scattering to the hadronization process. The $ΔR_{\mathrm{axis}}$ observable is presented for $20 < {p_{\mathrm{T}}^{\mathrm{ch\; jet}}}< 100$ GeV/$c$, and compared to predictions from the PYTHIA 8 and Herwig 7 event generators. The distributions can also be calculated analytically with a leading hadronization correction related to the non-perturbative component of the Collins$-$Soper$-$Sterman (CSS) evolution kernel. Comparisons to analytical predictions at next-to-leading-logarithmic accuracy with leading hadronization correction implemented from experimental extractions of the CSS kernel in Drell$-$Yan measurements are presented. The analytical predictions describe the measured data within 20% in the perturbative regime, with surprising agreement in the non-perturbative regime as well. These results are compatible with the universality of the CSS kernel in the context of jet substructure.
description: 43 pages, 31 captioned figures, 2 tables, authors from page 38, published version, figures at http://alice-publications.web.cern.ch/node/8627
Lifespan estimates for the compressible Euler equations with damping via Orlicz spaces techniques
Creators: name: Lai, Ning-An
name: Schiavone, Nico Michele
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we are interested in the upper bound of the lifespan estimate for the compressible Euler system with time dependent damping and small initial perturbations. We employ some techniques from the blow-up study of nonlinear wave equations. The novelty consists in the introduction of tools from the Orlicz spaces theory to handle the nonlinear term emerging from the pressure $p \equiv p(ρ)$, which admits different asymptotic behavior for large and small values of $ρ-1$, being $ρ$ the density. Hence we can establish, in high dimensions $n\in\{2,3\}$, unified upper bounds of the lifespan estimate depending only on the dimension $n$ and on the damping strength, and independent of the adiabatic index $γ>1$. We conjecture our results to be optimal. The method employed here not only improves the known upper bounds of the lifespan for $n\in\{2,3\}$, but has potential application in the study of related problems.
description: 38 pages
On Neumann problems for nonlocal Hamilton-Jacobi equations with dominating gradient terms
Creators: name: Ghilli, Daria
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We are concerned with the well-posedness of Neumann boundary value problems for nonlocal Hamilton-Jacobi equations related to jump processes in general smooth domains. We consider a nonlocal diffusive term of censored type of order less than 1 and Hamiltonians both in coercive form and in noncoercive Bellman form, whose growth in the gradient make them the leading term in the equation. We prove a comparison principle for bounded sub-and supersolutions in the context of viscosity solutions with generalized boundary conditions, and consequently by Perron's method we get the existence and uniqueness of continuous solutions. We give some applications in the evolutive setting, proving the large time behaviour of the associated evolutive problem under suitable assumptions on the data.
Utopia: Fast and Efficient Address Translation via Hybrid Restrictive & Flexible Virtual-to-Physical Address Mappings
Creators: name: Kanellopoulos, Konstantinos
name: Bera, Rahul
name: Stojiljkovic, Kosta
name: Bostanci, Nisa
name: Firtina, Can
name: Ausavarungnirun, Rachata
name: Kumar, Rakesh
name: Hajinazar, Nastaran
name: Sadrosadati, Mohammad
name: Vijaykumar, Nandita
name: Mutlu, Onur
Publisher: name: arXiv
Year: 2022
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences
subject: C.0

description: Conventional virtual memory (VM) frameworks enable a virtual address to flexibly map to any physical address. This flexibility necessitates large data structures to store virtual-to-physical mappings, which leads to high address translation latency and large translation-induced interference in the memory hierarchy. On the other hand, restricting the address mapping so that a virtual address can only map to a specific set of physical addresses can significantly reduce address translation overheads by using compact and efficient translation structures. However, restricting the address mapping flexibility across the entire main memory severely limits data sharing across different processes and increases data accesses to the swap space of the storage device, even in the presence of free memory. We propose Utopia, a new hybrid virtual-to-physical address mapping scheme that allows both flexible and restrictive hash-based address mapping schemes to harmoniously co-exist in the system. The key idea of Utopia is to manage physical memory using two types of physical memory segments: restrictive and flexible segments. A restrictive segment uses a restrictive, hash-based address mapping scheme that maps virtual addresses to only a specific set of physical addresses and enables faster address translation using compact translation structures. A flexible segment employs the conventional fully-flexible address mapping scheme. By mapping data to a restrictive segment, Utopia enables faster address translation with lower translation-induced interference. Utopia improves performance by 24% in a single-core system over the baseline system, whereas the best prior state-of-the-art contiguity-aware translation scheme improves performance by 13%.
description: To appear in 56th IEEE/ACM International Symposium on Microarchitecture (MICRO), 2023
3D weak lensing with spin wavelets on the ball
Creators: name: Leistedt, Boris
name: McEwen, Jason D.
name: Kitching, Thomas D.
name: Peiris, Hiranya V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We construct the spin flaglet transform, a wavelet transform to analyze spin signals in three dimensions. Spin flaglets can probe signal content localized simultaneously in space and frequency and, moreover, are separable so that their angular and radial properties can be controlled independently. They are particularly suited to analyzing of cosmological observations such as the weak gravitational lensing of galaxies. Such observations have a unique 3D geometrical setting since they are natively made on the sky, have spin angular symmetries, and are extended in the radial direction by additional distance or redshift information. Flaglets are constructed in the harmonic space defined by the Fourier-Laguerre transform, previously defined for scalar functions and extended here to signals with spin symmetries. Thanks to various sampling theorems, both the Fourier-Laguerre and flaglet transforms are theoretically exact when applied to bandlimited signals. In other words, in numerical computations the only loss of information is due to the finite representation of floating point numbers. We develop a 3D framework relating the weak lensing power spectrum to covariances of flaglet coefficients. We suggest that the resulting novel flaglet weak lensing estimator offers a powerful alternative to common 2D and 3D approaches to accurately capture cosmological information. While standard weak lensing analyses focus on either real or harmonic space representations (i.e., correlation functions or Fourier-Bessel power spectra, respectively), a wavelet approach inherits the advantages of both techniques, where both complicated sky coverage and uncertainties associated with the physical modeling of small scales can be handled effectively. Our codes to compute the Fourier-Laguerre and flaglet transforms are made publicly available.
description: 24 pages, 4 figures, version accepted for publication in PRD
Looking for America: Keyword Searches for Diversity and Minorities in Children’s Materials in North Carolina Public Library OPACs Using Vernacular and Library of Congress Subject Heading Terms
Creators: name: Peterson, Janet
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017
Subjects: Information retrieval
Subject headings, Library of Congress
Children's literature
Libraries & minorities
Keyword searching

description: According to U.S. Census Bureau data, by 2015 over half of all children in the United States under the age of 5 were racial or ethnic minorities.  Changing racial and ethnic demographics, in addition to changing social attitudes about other diverse groups, have led to changes in popular terminology and a call for children’s books reflecting current diversity.  However, Library of Congress Subject Headings may not reflect more current terminology, and public library OPACs may return different numbers of hits for vernacular and LCSH terms.  This study examines the number of hits returned for children’s materials in ten North Carolina public library OPACs for selected vernacular and LCSH terms for racial, ethnic, and other diverse minorities. Differences in numbers of hits returned may suggest that OPAC users receive irrelevant results, or that users do not receive all relevant results for existing materials in library collections.
Oxygen Isotopic Composition of Coarse- and Fine-grained Material from Comet 81P/Wild 2
Creators: name: Ogliore, Ryan C.
name: Nagashima, Kazuhide
name: Huss, Gary R.
name: Westphal, Andrew J.
name: Gainsforth, Zack
name: Butterworth, Anna L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Individual particles from comet 81P/Wild 2 collected by NASA's Stardust mission vary in size from small sub-$μ$m fragments found in the walls of the aerogel tracks, to large fragments up to tens of $μ$m in size found towards the termini of tracks. The comet, in an orbit beyond Neptune since its formation, retains an intact a record of early-Solar-System processes that was compromised in asteroidal samples by heating and aqueous alteration. We measured the O isotopic composition of seven Stardust fragments larger than $\sim$2 $μ$m extracted from five different Stardust aerogel tracks, and 63 particles smaller than $\sim$2 $μ$m from the wall of a Stardust track. The larger particles show a relatively narrow range of O isotopic compositions that is consistent with $^{16}$O-poor phases commonly seen in meteorites. Many of the larger Stardust fragments studied so far have chondrule-like mineralogy which is consistent with formation in the inner Solar System. The fine-grained material shows a very broad range of O isotopic compositions ($-70
A quantum dot-based frequency multiplier
Creators: name: Oakes, G. A.
name: Peri, L.
name: Cochrane, L.
name: Martins, F.
name: Hutin, L.
name: Bertrand, B.
name: Vinet, M.
name: Saiz, A. Gomez
name: Ford, C. J. B.
name: Smith, C. G.
name: Gonzalez-Zalba, M. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Silicon offers the enticing opportunity to integrate hybrid quantum-classical computing systems on a single platform. For qubit control and readout, high-frequency signals are required. Therefore, devices that can facilitate its generation are needed. Here, we present a quantum dot-based radiofrequency multiplier operated at cryogenic temperatures. The device is based on the non-linear capacitance-voltage characteristics of quantum dot systems arising from their low-dimensional density of states. We implement the multiplier in a multi-gate silicon nanowire transistor using two complementary device configurations: a single quantum dot coupled to a charge reservoir and a coupled double quantum dot. We study the harmonic voltage conversion as a function of energy detuning, multiplication factor and harmonic phase noise and find near ideal performance up to a multiplication factor of 10. Our results demonstrate a method for high-frequency conversion that could be readily integrated into silicon-based quantum computing systems and be applied to other semiconductors.
description: 17 pages, 16 figures
title: Zusammenwachsen in der  Einwanderungsgesellschaft
title: Wie denkt die Bevölkerung über  Teilhabe, Verbundenheit und Zugehörigkeit?
titleType: Subtitle
Creators: name: Unzicker, Kai
name: Wieland, Ulrike
Publisher: name: Bertelsmann Stiftung
Year: 2022
Subjects: Integration
Zusammenleben
Teilhabe

description: Die Studie zum Zusammenwachsen in der Einwanderungsgesellschaft geht der Frage nach, wie Menschen mit und Menschen ohne Migrationshintergrund ihr Zusammenleben in Deutschland wahrnehmen. Die Ergebnisse der Bevölkerungsbefragung zu den Themen „Teilhabe“, „Verbundenheit“ und „Zugehörigkeit“ zeigen, dass sich eine große Mehrheit aller Befragten mit Deutschland verbunden fühlt und mit ihrem Leben hierzulande alles in allem zufrieden ist. Gleichwohl werden auch Differenzen und Ungleichheiten deutlich. So geben Menschen mit Migrationshintergrund häufiger an, manchmal das Gefühl zu haben, in der Gesellschaft nicht richtig dazuzugehören. Weiter zeigen sich jüngere Menschen offener für migrationsbedingte Vielfalt als ältere. Oft sind sie bereits mit Vielfalt aufgewachsen und begreifen sie als Normalität. Das spricht dafür, dass das Zusammenleben in der Einwanderungsgesellschaft in Zukunft immer selbstverständlicher wird.
Confident, positive, but interested? Exploring the role of teachers’ interest in their practice of differentiated instruction
Creators: name: Pozas, Marcela
name: Letzel, Verena
name: Bost, Nora
name: Reichertz, Julia
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: teacher interest
subject: self-efficacy
subject: attitudes
subject: inclusive education
subject: differentiated instruction (DI)
subject: 370 Bildung und Erziehung

description: Given the substantial ongoing increase of individual learning demands, teachers are urged to address student heterogeneity in their daily teaching practice by means of differentiated instruction (DI). As the successful and effective implementation of DI relies mainly on teachers, research has intensively focused on examining teacher-related variables, such as teachers’ self-efficacy and attitudes, that have played a crucial role in their use of differentiated instructional practices. However, besides these well researched constructs, teacher interest is another important teacher-related variable that has, up to now, received very little attention and has been rarely incorporated into inclusive education research. Against this background, this study aimed to bring together previous research on teacher-related variables on their differentiated instructional practice, and extend prior literature by incorporate teachers’ interests. In total, 168 German in-service teachers from different school tracks participated in the study. Results from hierarchical linear regression (HLR) analyses showed a significant and positive predicting role of teacher interests on their practice of DI. Noteworthy is that teacher interests contributed significantly to their differentiated instructional practice, even after controlling for their self-efficacy and attitudes. Implications of the results, as well as further lines of research are discussed.
Spin diffusion in perturbed isotropic Heisenberg spin chain
Creators: name: Nandy, S.
name: Lenarčič, Z.
name: Ilievski, E.
name: Mierzejewski, M.
name: Herbrych, J.
name: Prelovšek, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The isotropic Heisenberg chain represents a particular case of an integrable many-body system exhibiting superdiffusive spin transport at finite temperatures. Here, we show that this model has distinct properties also at finite magnetization $m\ne0$, even upon introducing the SU(2) invariant perturbations. Specifically, we observe nonmonotonic dependence of the diffusion constant ${\cal D}_0(Δ)$ on the spin anisotropy $Δ$, with a pronounced maximum at $Δ=1$. The latter dependence remains true also in the zero magnetization sector, with superdiffusion at $Δ=1$ that is remarkably stable against isotropic perturbation (at least in finite-size systems), consistent with recent experiments with cold atoms.
description: 5+5 pages, 4+5 figures
"Talk to Me in a Year": The Conservator's Perspective on Collaboration for Special Collections Digitization Projects in Research Libraries
Creators: name: Hébert, Henry J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: Collaboration
Academic libraries
Digitization projects
Special collections
Preservation of library materials

description: The perspective of the conservator has been largely ignored in the literature on digitization projects within research libraries, despite the growing influence that these projects have on the priorities and funding of those organizations. This exploratory study attempts to identify the factors that may influence how library conservators collaborate with curators and digital production staff on special collections digitization projects. Semi-structured interviews were conducted with ten conservators from a range of research institutions to document their activities and perspectives concerning digitization and collaboration. Library organizational structures, professional relationships, and project funding are compared across several institutions to see how they may impact conservator involvement. The study found that social capital, liaison positions, standardized digitization workflows, and the physical proximity of the conservation lab to special collections influence the way that conservators are involved in digitization projects.
Rotation Curve Decomposition for Size-Mass Relations of Bulge, Disk, and Dark Halo in Spiral Galaxies
Creators: name: Sofue, Yoshiaki
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Rotation curves of more than one hundred spiral galaxies were compiled from the literature, and deconvolved into bulge, disk, and dark halo using $χ^2$ fitting in order to determine their scale radii and masses. Correlation analyses were obtained of the fitting parameters for galaxies that satisfied selection and accuracy criteria. Size-mass relations indicate that the sizes and masses are positively correlated among different components in such a way that the larger or more massive is the dark halo, the larger or more massive are the disk and bulge. Empirical size-mass relations were obtained for bulge, disk and dark halo by the least-squares fitting. The disk-to-halo mass ratio was found to be systematically greater by a factor of three than that predicted by cosmological simulations combined with photometry. A preliminary mass function for dark halo was obtained, which is represented by the Schechter function followed by a power law.
description: 12 pages, 14 figures, PASJ in press
A Theory for the Operation of the Independent System Operator in a Smart Grid with Stochastic Renewables, Demand Response and Storage
Creators: name: Singh, Rahul
name: Ma, Ke
name: Thatte, Anupam
name: Kumar, P. R.
name: Xie, Le
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we address a key issue of designing architectures and algorithms which generate optimal demand response in a decentralized manner for a smart-grid consisting of several stochastic renewables and dynamic loads. By optimal demand response, we refer to the demand response which maximizes the utility of the agents connected to the smart-grid. By decentralized we refer to the desirable case where neither the independent system operator (ISO) needs to know the dynamics/utilities of the agents, nor do the agents need to have a knowledge of the dynamics/utilities of other agents connected to the grid. The communication between the ISO and agents is restricted to the ISO announcing a pricing policy and the agents responding with their energy generation/consumption bids in response to the pricing policy. We provide a complete solution for both the deterministic and stochastic cases. It features a price iteration scheme that results in optimality of social welfare. We also provide an optimal solution for the case where there is a common randomness affecting and observed by all agents. This solution can be computationally complex, and we pose approximations. For the more general partially observed randomness case, we exhibit a relaxation that significantly reduces complexity. We also provide an approximation strategy that leads to a model predictive control (MPC) approach. Simulation results comparing the resulting optimal demand response with the existing architectures employed by the ISO illustrate the benefit in social welfare utility realized by our scheme. To the best of the authors' knowledge, this is the first work of its kind to explicitly mark out the optimal response of dynamic demand.
The reasons behind implementing a school library program in North Carolina Charter Schools
Creators: name: Roth, Kathryn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: School libraries--North Carolina
School libraries
School Libraries--Charter Schools

description: The purpose of this study was to examine the reasons charter schools decide to implement a library program. According to previous studies, budget constraints are the main obstacle faced by charter schools, thus limiting their ability to develop libraries and hire certified school library media specialists. To investigate charter schools with libraries, interviews were conducted with librarians and administrators from six charter schools in North Carolina. Despite lack of funds, all six schools found alternative means to staff their libraries and to develop their collections. Contrary to previous research, a lack of physical space was the main deciding factor in when and how to develop their libraries.
Categoricity for transfinite extensions of modules
Creators: name: Trlifaj, Jan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic (math.LO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 03C95, 16E30 (Primary), 03C35, 16D10 (Secondary)

description: For each deconstructible class of modules $\mathcal D$, we prove that the categoricity of $\mathcal D$ in a big cardinal is equivalent to its categoricity in a tail of cardinals. We also prove Shelah's Categoricity Conjecture for $(\mathcal D, \prec)$, where $(\mathcal D, \prec)$ is any abstract elementary class of roots of Ext.
description: v2 of arXiv:2212.04433v1, with new Theorems 2.11 and 2.12
$\bar B\to X_s γ$ with a warped bulk Higgs
Creators: name: Moch, P.
name: Rohrwild, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the decay $\bar B\to X_sγ$ in Randall-Sundrum models with an IR-localised bulk Higgs. The two models under consideration are a minimal model as well as a model with a custodial protection mechanism. We include the effects of tree- and one-loop diagrams involving 5D gluon and Higgs exchanges as well as QCD corrections arising from the evolution from the Kaluza-Klein scale to the typical scale of the decay. We find the RS corrections to the branching fraction can be sizeable for large Yukawas and moderate KK scales $T$; for small Yukawas the RS contribution is small enough to be invisible in current experimental data.
description: 20 pages, 5 figures(V2: references added, matches version published in Nuclear Physics B)
School Librarian Participation in Professional Learning Communities
Creators: name: Brasfield, Amanda L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: School libraries
Surveys--School libraries

description: This study describes a survey given to school librarians regarding their participation in professional learning communities (PLCs). School librarians who are members of AASLForum and LM_Net were emailed the survey. The study was conducted to determine what roles the librarians are playing within professional learning communities and how those roles compare with American Association of School Librarian standards. There are currently no quantitative studies of librarian roles in PLCs.   PLCs are an increasingly common strategy used to improved student achievement by focusing on student learning rather than teaching. Of the librarians survey 110 participate in at least one PLC. The survey covers in what type of PLC librarians are participating and what the obstacles are for participating. Most librarians surveyed participate in core subject area PLCs, and they cite "time" as the biggest barrier to participation.