cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Second-order and Fluctuation-induced First-order Phase Transitions with Functional Renormalization Group Equations
Creators: name: Fukushima, Kenji
name: Kamikado, Kazuhiko
name: Klein, Bertram
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate phase transitions in scalar field theories using the functional renormalization group (RG) equation. We analyze a system with $U(2)\times U(2)$ symmetry, in which there is a parameter $λ_2$ that controls the strength of the first-order phase transition driven by fluctuations. In the limit of $λ_2\to0$, the $U(2)\times U(2)$ theory is reduced to an $O(8)$ scalar theory that exhibits a second-order phase transition in three dimensions. We develop a new insight for the understanding of the fluctuation-induced first-order phase transition as a smooth continuation from the standard RG flow in the $O(8)$ system. In our view from the RG flow diagram on coupling parameter space, the region that favors the first-order transition emerges from the unphysical region to the physical one as $λ_2$ increases from zero. We give this interpretation based on the Taylor expansion of the functional RG equations up to the fourth order in terms of the field, which encompasses the $ε$-expansion results. We compare results from the expansion and from the full numerical calculation and find that the fourth-order expansion is only of qualitative use and that the sixth-order expansion improves the quantitative agreement.
description: 15 pages, 10 figures, collapsed expressions in the abstract fixed
Bibliographic Relationships among Chinese Publications: A Bibliographic study of the Chinese Collections of the East Asia Resources at the University of North Carolina at Chapel Hill
Creators: name: Zhang, Ying
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003
Subjects: Chinese collections
Bibliographic relationships

description: Based upon the previous studies of bibliographic relationships of Western publications, the current study examines the bibliographic relationships of Chinese publications, a field that has not been studied to date. The shelf list of the Chinese collection in the East Asia Resources of the University of North Carolina at Chapel Hill is used to draw a sample for analysis. Tillett's study with her taxonomy, as well as other studies of the bibliographic relationships is used as the foundation for analysis. The Research results of the study reveal both similarities and differences between the Western and Chinese publications in terms of their bibliographic relationships.
The development of a conversion model for programmers converting a VSAM File to Oracle Tables
Creators: name: Florio, Melissa B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002
Subjects: Database Conversion
Information systems--Design
Databases
Database management systems

description: This paper describes the development and evaluation of a conversion model for converting a VSAM file to Oracle tables. The conversion model was developed for programmers within the Student Information Group at the University of North Carolina at Chapel Hill. The purpose for the developing the conversion model was to provide stepby- step instructions to assist the programmers in the conversion process. To assist in the development of the conversion model, feedback from the programmers both before and after the development of the conversion model was gathered. Other methods used in the development of the conversion model included conducting a case study of previous conversions and implementing an actual VSAM to Oracle conversion.
MS Gr. class. c. 3 527
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1008 col. 24. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
Additional file 6 of Evaluating swine disease occurrence on farms using the state-space model based on meat inspection data: a time-series analysis
Creators: name: Narita, Tsubasa
name: Kubo, Meiko
name: Nagakura, Yuichi
name: Sekiguchi, Satoshi
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Additional file 6. Gap statistics for each disease. PH, parasitic hepatitis; MPS, mycoplasmal pneumonia of swine; IH, interstitial hepatitis; PA, pulmonary abscess.
Evolution of coherence and non-classicality under global environmental interaction
Creators: name: Bhattacharya, Samyadeb
name: Banerjee, Subhashish
name: Pati, Arun Kumar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A master equation has been constructed for a global system-bath interaction both in the absence as well as presence of non-Markovian noise. For the memoryless case, it has been exactly solved for a paradigmatic class of two qubit states in high and zero temperature thermal environment. For the non-Markovian model, it has been solved for zero temperature bath. The evolution of quantum coherence and entanglement has been observed in presence of the above mentioned interactions. We show that the global part of the system-bath interaction compensates for the decoherence, resulting in slow down of coherence and entanglement decay. For an appropriately defined limiting case, both coherence and entanglement show freezing behaviour for the high temperature bath. In case of zero temperature bath, the mentioned interaction not only stabilizes the non-classical correlations, but also enhances them for a finite period. For the memory dependent case, we have seen that the global interaction enhances the back-flow of information from environment to the system, as it enhances the regeneration of coherence and entanglement. Also we have studied the generation of Quantum Fisher information by the mentioned process. An intuitive measure of non-classicality based on non-commutativity of quantum states has been considered. Bounds on generated quantum Fisher information has been found in terms of quantumness and coherence. This gives us a novel understanding of Quantum Fisher information as a measure of non-classicality.
description: 17 pages, 12 figures
Approximate Universal Relations for Neutron Stars and Quark Stars
Creators: name: Yagi, Kent
name: Yunes, Nicolas
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Neutron stars and quark stars are ideal laboratories to study fundamental physics at supra nuclear densities and strong gravitational fields. Astrophysical observables, however, depend strongly on the star's internal structure, which is currently unknown due to uncertainties in the equation of state. Universal relations, however, exist among certain stellar observables that do not depend sensitively on the star's internal structure. One such set of relations is between the star's moment of inertia ($I$), its tidal Love number (Love) and its quadrupole moment ($Q$), the so-called I-Love-Q relations. Similar relations hold among the star's multipole moments, which resemble the well-known black hole no-hair theorems. Universal relations break degeneracies among astrophysical observables, leading to a variety of applications: (i) X-ray measurements of the nuclear matter equation of state, (ii) gravitational wave measurements of the intrinsic spin of inspiraling compact objects, and (iii) gravitational and astrophysical tests of General Relativity that are independent of the equation of state. We here review how the universal relations come about and all the applications that have been devised to date.
description: 89 pages, 38 figures; v1: review article submitted to Physics Reports; v2: matches with the published version
Approaching magnetic ordering in graphene materials by FeCl$_3$ intercalation
Creators: name: Bointon, T. H.
name: Khrapach, I.
name: Yakimova, R.
name: Shytov, A. V.
name: Craciun, M. F.
name: Russo, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show the successful intercalation of large area (1 cm$^2$) epitaxial few-layer graphene grown on 4H-SiC with FeCl$_3$. Upon intercalation the resistivity of this system drops from an average value of $\approx 200 \ Ω/sq$ to $\approx 16 \ Ω/sq$ at room temperature. The magneto-conductance shows a weak localization feature with a temperature dependence typical of graphene Dirac fermions demonstrating the decoupling into parallel hole gases of each carbon layer composing the FeCl$_3$ intercalated structure. The phase coherence length ($\approx 1.2 μ$m at 280 mK) decreases rapidly only for temperatures higher than the 2-D magnetic ordering in the intercalant layer while it tends to saturate for temperatures lower than the antiferromagnetic ordering between the planes of FeCl$_3$ molecules providing the first evidence for magnetic ordering in the extreme two-dimensional limit of graphene.
description: Nano Lett, volume 14, no. 4, pages 1751-1755
Ultrafast, low-power, all-optical switching via birefringent phase-matched transverse mode conversion in integrated waveguides
Creators: name: Hellwig, Tim
name: Epping, Jörn P.
name: Schnack, Martin
name: Boller, Klaus. -J.
name: Fallnich, Carsten
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the potential of birefringence-based, all-optical, ultrafast conversion between the transverse modes in integrated optical waveguides by modelling the conversion process by numerically solving the multi-mode coupled nonlinear Schroedinger equations. The observed conversion is induced by a control beam and due to the Kerr effect, resulting in a transient index grating which coherently scatters probe light from one transverse waveguide mode into another. We introduce birefringent phase matching to enable efficient all-optically induced mode conversion at different wavelengths of the control and probe beam. It is shown that tailoring the waveguide geometry can be exploited to explicitly minimize intermodal group delay as well as to maximize the nonlinear coefficient, under the constraint of a phase matching condition. The waveguide geometries investigated here, allow for mode conversion with over two orders of magnitude reduced control pulse energy compared to previous schemes and thereby promise nonlinear mode switching exceeding efficiencies of 90% at switching energies below 1 nJ.
The Impact of Screen Size: A Usability Evaluation of Mobile Devices for Scholarly Reading
Creators: name: Gu, Shumeng
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Electronic information resources--Use studies
Readings
Electronic book readers

description: This study aims to present a comprehensive evaluation of usability related to performing scholarly readings across mobile devices with different screen sizes. The primary research questions are: 1) What are the perceived advantages and disadvantages of mobile devices with different screen sizes for scholarly reading? 2) Is screen size a major factor affecting usability? The author conducted a qualitative and quantitative methods study, including observation, questionnaire and semi-structured interview.
The study found the screen size of mobile devices is a major factor that impacts usability when it is smaller than a certain scale. No significant difference was found between full-size 9.7-inch tablet and 7.9-inch mini-tablet in terms of ease of navigation, reading speed, reading effectiveness and overall experience. The 4-inch phone is the least desirable device for scholarly reading, and has the lower performance of the presentation of texts and figures. Other possible factors include the device weight, portability and physical design.
A Content Analysis of Art Museum Library Websites
Creators: name: Huffman, Suzanne M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Art libraries and collections
Content analysis
Art libraries and collections--Administration
Museum libraries--Administration

description: This paper presents a content analysis of North American art museum library websites. The exploratory study involves an analysis of the websites of twenty sample institutions to determine the overall scope, content, and features of their online sites. The results of the study show that art museum library websites contain detailed information about their institutions' collections, and often make aspects of their collections available to a wide range of online patrons in digital formats. However, many of these websites were found to be lacking in other key areas, such as online support, social media networking, research guidance, library promotion, and educational outreach. These components are important for the online representation of cultural institutions and can create bonds between the institutions and their patrons. For art museum libraries to successfully connect with and serve users in the 21st century, they should maintain websites that address all of these multifaceted online areas.
Serious Leisure: Understanding the Information Needs of Quilters
Creators: name: Forster, Julie M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Information seeking research in Library and Information Science has grown to encompass not only occupational situations, but also non-work and leisure activities.  This paper investigates the everyday life information seeking (ELIS) behaviors of quilters, and the Information Channels they prefer to use.  The context of quilters' information seeking behaviors involves interaction with a number of formal and informal information channels.  Anecdotal evidence suggests that quilters are beginning to show a preference for web-based resources; however, no known studies to-date have explored this phenomenon.  Through semi-structured interviews, analysis of this study focused on emerging themes of information source preference, as well as information seeking processes.  Specifically, results showed that participants did engage with quilting as a form of serious leisure, and exhibited ELIS behaviors to satisfy their information needs.  In particular, participants identified four main Information Channels through which they accessed quilt-related information and demonstrated a strong preference for Internet-based sources.
Metadata Pragmatics: Toward A Unified Semiotic Framework
Creators: name: Elfenbein, Timothy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: Metadata
Semiotics theory--Communication

description: With the increasing focus on data sharing in the sciences and information organization in networked information-spaces, metadata has become a prominent area of research and activity. Scholars in library and information science and science studies have distinct approaches to describing and understanding metadata. This thesis reviews the accounts of metadata given by these two fields and then takes preliminary steps toward a unified analytic framework for research, based in Peircean semiotics as it has been developed within semiotic anthropology.
MS Gr. class. c. 3 528
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1008 col. 23. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
GRMHD simulations of visibility amplitude variability for Event Horizon Telescope images of Sgr A*
Creators: name: Medeiros, Lia
name: Chan, Chi-kwan
name: Ozel, Feryal
name: Psaltis, Dimitrios
name: Kim, Junhan
name: Marrone, Daniel P.
name: Sadowski, Aleksander
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Synthesis imaging of the black hole in the center of the Milky Way, Sgr A*, with the Event Horizon Telescope (EHT) rests on the assumption of a stationary image. We explore the limitations of this assumption using high-cadence GRMHD simulations of Sgr A*. We employ analytic models that capture the basic characteristics of the images to understand the origin of the variability in the simulated visibility amplitudes. We find that, in all simulations, the visibility amplitudes for baselines oriented perpendicular to the spin axis of the black hole typically decrease smoothly over baseline lengths that are comparable to those of the EHT. On the other hand, the visibility amplitudes for baselines oriented parallel to the spin axis show significant structure with one or more minima. This suggests that fitting EHT observations with geometric models will lead to reasonably accurate determination of the orientation of the black-hole on the plane of the sky. However, in the disk-dominated models, the locations and depths of the minima in the visibility amplitudes depend primarily on the width and asymmetry of the crescent-like images and are highly variable. In the jet-dominated models, the locations of the minima are determined by the separation of the two image components but their depths depend primarily on the relative brightness of the two components and are also variable. This suggests that using time-independent models to infer additional black-hole parameters, such as the shadow size or the spin magnitude, will be severely affected by the variability of the accretion flow.
description: replaced to match published version, new figure added, results unchanged
Reversible control of spin-polarised supercurrents in ferromagnetic Josephson junctions
Creators: name: Banerjee, N.
name: Robinson, J. W. A.
name: Blamire, M. G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magnetic inhomogeneity at a superconductor (S)/ferromagnet (F) interface converts spin-singlet Cooper pairs into spin-one triplet pairs. These pairs are immune to the pair-breaking exchange field in F and support a long-range proximity effect. Although recent experiments have confirmed the existence of spin-polarised triplet supercurrents in S-F-S Josephson junctions, reversible control of the supercurrent has been impossible because of the robust pre-configured nature of the inhomogeneity. Here we use a barrier comprising three F layers whose relative magnetic orientation, and hence the interfacial inhomogeneity, can be controlled by small magnetic fields; we show that this enables full control of the triplet supercurrent and, by using finite element micromagnetic simulations, we can directly relate the experimental data to the theoretical models which provide a general framework to understand the role played by magnetic states in long-range supercurrent modulation.
description: 17 pages, 3 figures
On the global moduli of Calabi-Yau threefolds
Creators: name: Donagi, Ron
name: Macerato, Mark
name: Sharpe, Eric
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this note we initiate a program to obtain global descriptions of Calabi-Yau moduli spaces, to calculate their Picard group, and to identify within that group the Hodge line bundle, and the closely-related Bagger-Witten line bundle. We do this here for several Calabi-Yau's obtained in [DW09] as crepant resolutions of the orbifold quotient of the product of three elliptic curves. In particular we verify in these cases a recent claim of [GHKSST16] by noting that a power of the Hodge line bundle is trivial -- even though in most of these cases the Picard group is infinite.
description: 28 pages, LaTeX, 3 figures; v2: thorough revision, error corrected, added author
On the limit Sobolev regularity for Dirichlet and Neumann problems on Lipschitz domains
Creators: name: Costabel, Martin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We construct a bounded $C^{1}$ domain $Ω$ in $R^{n}$ for which the $H^{3/2}$ regularity for the Dirichlet and Neumann problems for the Laplacian cannot be improved, that is, there exists $f$ in $C^{\infty}(\overlineΩ)$ such that the solution of $Δu=f$ in $Ω$ and either $u=0$ on $\partialΩ$ or $\partial\_{n} u=0$ on $\partialΩ$ is contained in $H^{3/2}(Ω)$ but not in $H^{3/2+\varepsilon}(Ω)$ for any $ε>0$. An analogous result holds for $L^{p}$ Sobolev spaces with $p\in(1,\infty)$.
The Unthinking or Confident Extremist?
Creators: name: Brandt, Mark
name: Evans, Anthony
name: Crawford, Jarret
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Anchoring
subject: Data
subject: Extremity
subject: Ideology
subject: Materials
subject: Political Psychology

description: Materials, data, and analyses for "The Unthinking or Confident Extremist?" by Brandt, Evans, and Crawford, accepted for publication at Psychological Science
Relation algebras and groups
Creators: name: Givant, Steven
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03G15, 03E20, 20A15

description: Generalizing results of Jónsson and Tarski, Maddux introduced the notion of a pair-dense relation algebra and proved that every pair-dense relation algebra is representable. The notion of a pair below the identity element is readily definable within the equational framework of relation algebras. The notion of a triple, a quadruple, or more generally, an element of size (or measure) n>2 is not definable within this framework, and therefore it seems at first glance that Maddux's theorem cannot be generalized. It turns out, however, that a very far-reaching generalization of Maddux's result is possible if one is willing to go outside of the equational framework of relation algebras, and work instead within the framework of the first-order theory. In the present paper, we define the notion of an atom below the identity element in a relation algebra having measure n for an arbitrary cardinal number n>0, and we define a relation algebra to be measurable if it's identity element is the sum of atoms each of which has some (finite or infinite) measure. The main purpose of the present paper is to construct a large class of new examples of group relation algebras using systems of groups and corresponding systems of quotient isomorphisms (instead of the classic example of using a single group and forming its complex algebra), and to prove that each of these algebras is an example of a measurable set relation algebra. In a subsequent paper, the class of examples will be greatly expanded by adding a third ingredient to the mix, namely systems of "shifting" cosets. The expanded class of examples---called coset relation algebras---will be large enough to prove a representation theorem saying that every atomic, measurable relation algebra is essentially isomorphic to a coset relation algebra.
description: This is the first member of a series of papers on measurable relation algebras
Evaluation Criteria for Scholarly Research Offered by Art Museum Library Websites
Creators: name: Rinalducci, Jennifer L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004
Subjects: College and university libraries--Reference services
Reference Services Arts
Evaluation

description: The purpose of this research is to consider how useful web-based resources are to art history scholars. The study examines the usefulness of online resources of museum libraries and research centers, institutions created to provide relevant information, in meeting scholars' needs online. These web resources need to be evaluated for the scholar, and the discipline of art history has unique considerations within the humanities. The survey developed evaluates websites associated with art museum libraries. Museum libraries included in this study are the Getty Research Institute, Tate Research Center, Frick Art Reference Library, National Art Library, and Smithsonian American Art Museum Information Resources. The survey is similar to those used in the humanities field, including the categories of relevance, navigability, and coverage. The questions also include an image category to address the unique needs of art historians.
Transgression of D-branes
Creators: name: Bunk, Severin
name: Waldorf, Konrad
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Closed strings can be seen either as one-dimensional objects in a target space or as points in the free loop space. Correspondingly, a B-field can be seen either as a connection on a gerbe over the target space, or as a connection on a line bundle over the loop space. Transgression establishes an equivalence between these two perspectives. Open strings require D-branes: submanifolds equipped with vector bundles twisted by the gerbe. In this paper we develop a loop space perspective on D-branes. It involves bundles of simple Frobenius algebras over the branes, together with bundles of bimodules over spaces of paths connecting two branes. We prove that the classical and our new perspectives on D-branes are equivalent. Further, we compare our loop space perspective to Moore-Segal/Lauda-Pfeiffer data for open-closed 2-dimensional topological quantum field theories, and exhibit it as a smooth family of reflection-positive, colored knowledgable Frobenius algebras.
description: 67 pages. V2 contains some minor corrections in Appendix A; v2 is the published version
Effect of geometry on the dewetting of granular chains by evaporation
Creators: name: Cejas, Cesare M.
name: Hough, Lawrence A.
name: Frétigny, Christian
name: Dreyfus, Rémi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Understanding evaporation or drying in granular media still remains complex despite recent advancements. Evaporation depends on liquid transport across a connected film network from the bulk to the surface. In this study, we investigate the stability of film networks as a function of granular packing. Using a controlled experimental approach, we vary the granular packing geometry and show the changes in the height of the liquid film network during evaporation as packing shifts from a loose-packed to a close-packed arrangement. This height can be calculated from an equilibrium between hydrostatic pressure and the pressure difference between two points in the vertical film network. We use a simulation approach to calculate the pressure in both the percolating front and evaporating front within the two-phase zone of air/water mixture. Results show good agreement between the model and the experiment.
description: Previous title: Effect of granular packing geometry on evaporation
MS Gr. class. c. 3 529
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1008 col. 22. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
A Thurston boundary for infinite-dimensional Teichmüller spaces
Creators: name: Bonahon, Francis
name: Šarić, Dragomir
Publisher: name: arXiv
Year: 2018
Subjects: subject: Geometric Topology (math.GT)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30F60

description: For a compact surface $X_0$, Thurston introduced a compactification of its Teichmüller space $\mathcal T(X_0)$ by completing it with a boundary $\mathcal{PML}(X_0)$ consisting of projective measured geodesic laminations. We introduce a similar bordification for the Teichmüller space $\mathcal T(X_0)$ of a noncompact Riemann surface $X_0$, using the technical tool of geodesic currents. The lack of compactness requires the introduction of certain uniformity conditions which were unnecessary for compact surfaces. A technical step, providing a convergence result for earthquake paths in $\mathcal T(X_0)$, may be of independent interest.
description: 42 pages, 3 figures. Version 2: Minor revisions prior to publication; to appear in Mathematische Annalen
Quantum superposition, entanglement, and state teleportation of a microorganism on an electromechanical oscillator
Creators: name: Li, Tongcang
name: Yin, Zhang-Qi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Schrödinger's thought experiment to prepare a cat in a superposition of both alive and dead states reveals profound consequences of quantum mechanics and has attracted enormous interests. Here we propose a straightforward method to create quantum superposition states of a living microorganism by putting a small cryopreserved bacterium on top of an electromechanical oscillator. Our proposal is based on recent developments that the center-of-mass oscillation of a 15-$μ$m-diameter aluminium membrane has been cooled to its quantum ground state [Nature 475: 359 (2011)], and entangled with a microwave field [Science 342: 710 (2013)]. A microorganism with a mass much smaller than the mass of the electromechanical membrane will not significantly affect the quality factor of the membrane and can be cooled to the quantum ground state together with the membrane. Quantum superposition and teleportation of its center-of-mass motion state can be realized with the help of superconducting microwave circuits. More importantly, the internal states of a microorganism, such as the electron spin of a glycine radical, can be entangled with its center-of-mass motion and teleported to a remote microorganism. Our proposal can be realized with state-of-art technologies. The proposed setup is a quantum-limited magnetic resonance force microscope. Since internal states of an organism contain information, our proposal also provides a scheme for teleporting information or memories between two remote organisms.
description: to appear in Science Bulletin
Overcorrection for Social Categorization Information Moderates Impact Bias in Affective Forecasting
Creators: name: Lau, Tatiana
name: Cikara, Mina
name: Morewedge, Carey
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: emotions
subject: judgment
subject: social cognition

description: Plural societies require individuals to forecast how others—both in-group and out-group members—will respond to gains and setbacks. Typically, greater information results in correction from inaccurate initial forecasts. By contrast to the typical palliative effects of more information, we find that that correcting for targets’ social categories result in more extreme, less accurate forecasts. Forecasters in three experiments exhibited more impact bias in their affective forecasts for in-group and out-group members’ responses to positive and negative outcomes when provided with social categorization information about their target (e.g., a “Democrat” or “Republican”) than when provided with no category information (e.g., a “person”). Inducing time pressure reduced the extremity of forecasts for group-labeled targets but did not affect forecasts for unidentified targets, suggesting that the increased impact bias for identified group members was due to differences in correction rather than in intuitive predictions.
Subject headings friend or foe?: Cataloging diverse YA books in public libraries
Creators: name: Williams, Sarah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017
Subjects: Public libraries
Cataloging
Diverse books

description: Diversity and inclusion are hot topics in the world of education and libraries are in a position to be at the forefront of this movement given their close relationship with the public. Having diverse books in a library collection is one part of ensuring a more diverse and inclusive space. Teens and young adults are readers who greatly benefit from having diverse materials available to them. To examine whether or not diverse YA books are available and searchable via subject headings two public libraries in North Carolina were examined. The subject headings assigned to 60 chosen YA books proved to be a sufficient and easy way to search for and find these materials. Despite being able to find these diverse books via the catalog there are still ways to improve the way libraries are organizing their materials on the shelves to ensure diverse books can be found.
The School of Information and Library Science Information Technology Recovery Plan
Creators: name: Boothman, Sean M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003
Subjects: Policies--Information Technology Recovery
Security--Business Continuity

description: Many schools and organizations make the mistake of not preparing for potential crisis situations in advance. As a result, schools and organizations often make erroneous decisions, waste critical time and allow the crisis to control them and/or spiral out of control. Being fully prepared ahead of time can be the difference between keeping your business up and running or going out of business. This project takes a look at the Information Technology (IT) infrastructure of the School of Information and Library Science, documents all IT related procedures, machines, and processes, which are needed to keep the school functioning. This disaster recovery plan is an ongoing process that should be evaluated and re-examined every semester in order to update critical services.
The Unseen Guardian: How Blockchain, Java, and AI Stealthily Became the Sherlock Holmes of Cybersecurity
Creators: name: Bodemer, Oliver
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 460201
subject: Artificial life and complex adaptive systems

description: In the intricate and ever-evolving realm of cybersecurity, the safeguarding of digital assets and information becomes paramount, especially considering the sophistication of contemporary cyber threats. This research embarks on a novel exploration of integrating Blockchain, Java, and Artificial Intelligence (AI) to formulate a robust cybersecurity framework, metaphorically likened to the deductive prowess of the fictional detective, Sherlock Holmes. Blockchain technology is heralded for its immutable and decentralized characteristics, offering a fortification against data tampering. Java, with its platform-independent and object-oriented programming capabilities, provides a versatile and secure environment for developing blockchain applications. Concurrently, AI introduces an adaptive and predictive element, enabling the system to anticipate, identify, and mitigate potential cyber threats through pattern recognition and anomaly detection. Through a series of case studies and empirical analyses, this research elucidates the efficacy of the proposed cybersecurity framework in thwarting various cyber-attack vectors, ensuring data integrity, and maintaining user privacy. Furthermore, it navigates through the ethical and legal conundrums associated with deploying intelligent and autonomous cybersecurity systems. The findings underscore the potential of amalgamating Blockchain, Java, and AI in enhancing cybersecurity, providing insights into overcoming associated challenges, and paving the way for future research in deploying intelligent, secure, and ethical cybersecurity frameworks.
Stellar orbital properties as diagnostics of the origin of the stellar halo
Creators: name: Valluri, Monica
name: Loebman, Sarah R.
name: Bailin, Jeremy
name: Clarke, Adam
name: Debattista, Victor P.
name: Stinson, Greg
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine metallicities, ages and orbital properties of halo stars in a Milky-Way like disk galaxy formed in the cosmological hydrodynamical MaGICC simulations. Halo stars were either accreted from satellites or they formed in situ in the disk or bulge of the galaxy and were then kicked up into the halo ("in situ/ kicked-up" stars). Regardless of where they formed both types show surprisingly similar orbital properties: the majority of stars of both types are on short-axis tubes with the same sense of rotation as the disk -- implying that a large fraction of satellites are accreted onto the halo with the same sense of angular momentum as the disk.
description: 2 pages, 1 figure, to appear in: The General Assembly of Stellar Halos: Structure, Origin and Evolution Proceedings IAU Symposium No. 317, 2015, M. Arnaboldi, A. Bragaglia, M. Rejkuba & D. Romano eds
MS Gr. class. c. 3 530
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1008 col. 21. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
Linear NMR in the polar phase of $^3$He in aerogel
Creators: name: Zavjalov, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: $^3$He is an example of the system with non-trivial Cooper paring. A few different superfluid phases are known in this system. Recently the new one, the polar phase, have been observed in $^3$He confined in nematically ordered aerogel. A number of various topological defects including half-quantum vortices can exist the polar phase. In this work we present theoretical and numerical studies of linear NMR in the polar phase both in the uniform order-parameter texture and in the presence of half-quantum vortices.
description: 6 pages, 5 figures
The Application of FRBR to Musical Works
Creators: name: Holden, Christopher
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: Cataloging of sound recordings
FRBR (Conceptual model)
Cataloging of music

description: The Functional Requirements for Bibliographic Records (FRBR) proposes a four-tier hierarchy to describe relationships between works and their derivations. Most scholarship on FRBR and musical works has concentrated on classical music within the Western canon, and little attention has been paid to other genres of music. This study takes a bipartite content sample of both classical and non-classical musical works, investigating the issues with both using the FRBR framework. Results indicate there is a blurring of the roles within popular music that can call into question the boundaries of "work" and "expression."  The examination of the pieces within the classical canon revealed many FRBR-specific relationships, but also the existence of relationships with no FRBR equivalent, and the examination of non-classical works revealed even more relationships that were either ambiguous or non-existent in the FRBR framework.  The study concludes that there may be significant problems trying to tackle non-classical musical works and their mutations with a strict hierarchical model such as FRBR.
Pion constituent quarks couplings strong form factors: a dynamical approach
Creators: name: Braghin, Fabio L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Form factors for pions interactions with constituent quarks are investigated as the leading effective couplings obtained from a one loop background field method applied to a global color model. Two pion field definitions are considered and the resulting eleven form factors are expressed in terms of components of the quark and gluon propagators that compose only two momentum dependent functions. A momentum dependent Goldberger Treiman relation is also obtained as one of the ratios between the form factors. The resulting form factors with pion momenta up to 1.5 GeV are exhibited for different quark effective masses and two different non-perturbative gluon propagators and they present similar behavior to fittings of experimental data from nucleons form factors. The corresponding pseudoscalar averaged quadratic radii (a.q.r.) and correction to the axial a.q.r. are presented as functions of the sea quark effective mass, being equal respectively to the scalar and vector ones at the present level of calculation.
description: 25 pages, 12 figures, revised version, few punctual corrections in the text
Parametric excitation of surface magnetostatic modes in an axially magnetized elliptic cylinder under longitudinal pumping
Creators: name: Popov, M. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A rigorous analytical theory of parametric excitation under the longitudinal pumping has been developed for the surface magnetostatic modes of a long elliptic ferrite cylinder magnetized along its axis with regard for the boundary conditions at the surface of the cylinder.It is shown that a pair of frequency-degenerated counter-propagating surface modes at half the pumping frequency can be parametrically excited, and the expressions for the corresponding parametric excitation threshold have been derived. The threshold demonstrates a strong dependence on the mode number and elliptic cylinder's aspect ratio and tends from above for the large aspect ratio to the value deduced on the basis of the plane-wave analysis.The simple analytical relation between the ratio of axes of the high-frequency magnetization polarization ellipse of excited surface magnetostatic oscillations and the parametric excitation threshold is obtained, discussed, and graphically illustrated.
Recursive multiport schemes for implementing quantum algorithms with photonic integrated circuits
Creators: name: Tabia, Gelo Noel M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81V80

description: We present recursive multiport schemes for implementing quantum Fourier transforms and the inversion step in Grover's algorithm on an integrated linear optics device. In particular, each scheme shows how to execute a quantum operation on $2d$ modes using a pair of circuits for the same operation on $d$ modes. The circuits operate on path-encoded qudits and realize $d$-dimensional unitary transformations on these states using linear optical networks with $O\left(d^2\right)$ optical elements. To evaluate the schemes against realistic errors, we ran simulations of proof-of-principle experiments using a simple fabrication model of silicon-based photonic integrated devices that employ directional couplers and thermo-optic modulators for beam splitters and phase shifters, respectively. We find that high-fidelity performance is achievable with our multiport circuits for $2$-qubit and $3$-qubit quantum Fourier transforms, and for quantum search on four-item and eight-item databases.
description: 9 pages, 10 figures; v2, version accepted for publication
Music Mood Classification Based on Lyrics and Audio Tracks
Creators: name: Fan, Yunhui
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017
Subjects: Machine learning

description: Music mood classification has always been an intriguing topic. Lyrics and audio tracks are two major sources of evidence for music mood classification. This paper compares the performance between feature representations extracted from lyrics and feature representations extracted from audio tracks. Evaluation results suggest text-based classifier and audio-feature-based classifier have similar performance for certain moods.
An XML DTD for Project Gutenberg
Creators: name: Blue, Cynthia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2001
Subjects: Document Type Definitions (DTDs) Schemas
XML (Document markup language)

description: Project Gutenberg is an electronic collection of documents and literature, the majority of which exist in ASCII format. While the ASCII format has been an almost universally accessible format since the Project started in 1971, the possibilities and advantages of marking up the texts with the Extensible Markup Language (XML) are compelling. Related efforts are detailed and analyzed for viability with the Gutenberg texts. This project presents a direction for the future of this effort and a DTD suitable for the collection. The prepared DTD provides the schema against which 5 test documents are marked up with XML. A tutorial based on my experiences marking up the text and an index of the available elements are included.
Dense ideals and cardinal arithmetic
Creators: name: Eskew, Monroe
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E35, 03E55

description: From large cardinals we show the consistency of normal, fine, $κ$-complete $λ$-dense ideals on $\mathcal{P}_κ(λ)$ for successor $κ$. We explore the interplay between dense ideals, cardinal arithmetic, and squares, answering some open questions of Foreman.
Hawking radiation from not-extremal and extremal Reissner-Nordstrom black holes
Creators: name: Eskin, Gregory
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the non-extremal Reissner-Nordstrom black hole and construct a wave packet that exhibits the Hawking radiation. We find the average of the number of the created particles with respect to the $|0\rangle$ vacuum state and with respect to Unruh type vacuum state. The average of the number operator in the $|0\rangle$ vacuum state consists of two terms: one is related to the Hawking radiation and the second is not related. We use the same construction for the extremal RN black hole and get that the average of the number operator with respect to the $|0\rangle$ vacuum state is also a sum of two term, where the one related to the Hawking radiation is equal to zero. This result is consistent with other works on the Hawking radiation for the extremal RN black hole.
Convolution of valuations on manifolds
Creators: name: Alesker, Semyon
name: Bernig, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C65, 22E30

description: We introduce the new notion of convolution of a (smooth or generalized) valuation on a group $G$ and a valuation on a manifold $M$ acted upon by the group. In the case of a transitive group action, we prove that the spaces of smooth and generalized valuations on $M$ are modules over the algebra of compactly supported generalized valuations on $G$ satisfying some technical condition of tameness. The case of a vector space acting on itself is studied in detail. We prove explicit formulas in this case and show that the new convolution is an extension of the convolution on smooth translation invariant valuations introduced by J.~Fu and the second named author.
description: 35 pages
MS Gr. class. c. 3 531
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1008 col. 20. Philodemus, De vitiis 10
Drawing by Gennaro Casanova