cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A heuristic derivation of radiative power loss and radiation reaction from the kinetic power of electric inertial mass of a charge
Creators: name: Singal, Ashok K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: It is shown that formulas for the radiative power loss and radiation reaction from a charge can be derived in a heuristic manner from the kinetic power (rate of change of the kinetic energy) of its electric inertial mass. The derivation assumes a non-relativistic but otherwise an arbitrary motion of the charge. We exploit the fact that as the charge velocity changes because of a constant acceleration, there are accompanying modifications in its electromagnetic fields which can remain concurrent with the charge motion because the velocity as well as acceleration information enters into the field expression. However, if the acceleration of the charge is varying, information about that being not present in the field expressions, the electromagnetic fields get `out of step' with the actual charge motion. Accordingly we arrive at a radiation reaction formula for an arbitrarily moving charge, obtained hitherto in literature from the self-force, derived in a rather cumbersome way from the detailed mutual interaction between various constituents of a small charged sphere. This way we demonstrate that a power loss from a charge occurs only when there is a change in its acceleration and the derived instantaneous power loss is directly proportional to the scalar product of the velocity and the rate of change of the acceleration of the charge.
description: 11 pages, accepted in Phys. Ed
Comparison-free polyregular functions
Creators: name: Nguyên, Lê Thành Dũng Tito
name: Noûs, Camille
name: Pradic, Cécilia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: This paper introduces a new automata-theoretic class of string-to-string functions with polynomial growth. Several equivalent definitions are provided: a machine model which is a restricted variant of pebble transducers, and a few inductive definitions that close the class of regular functions under certain operations. Our motivation for studying this class comes from another characterization, which we merely mention here but prove elsewhere, based on a $λ$-calculus with a linear type system.As their name suggests, these comparison-free polyregular functions form a subclass of polyregular functions; we prove that the inclusion is strict. We also show that they are incomparable with HDT0L transductions, closed under usual function composition -- but not under a certain ``map'' combinator -- and satisfy a comparison-free version of the pebble minimization theorem.On the broader topic of polynomial growth transductions, we also consider the recently introduced layered streaming string transducers (SSTs), or equivalently k-marble transducers. We prove that a function can be obtained by composing such transducers together if and only if it is polyregular, and that k-layered SSTs (or k-marble transducers) are closed under ``map'' and equivalent to a corresponding notion of (k+1)-layered HDT0L systems.
MS Gr. class. c. 3 547
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. 4. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
Maximal entanglement of two delocalized spin-$\frac{1}{2}$ particles
Creators: name: Johansson, Markus
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe the entanglement of two indistinguishable delocalized spin-$\frac{1}{2}$ particles in the simplest spatial configuration of three spatial modes with the constraint that at most one particle occupy each mode. It is show that this is the only number of modes for which maximally entangled states exist in such a system. The set of entangled states, including the set of maximally entangled states, is described and different types of entanglement in terms of Bell-nonlocal correlations for different partitions of the system are identified. In particular we focus on the entangled states that are Bell-local for a tri-partition of the system and cannot be described as a superposition of bi-partite entangled pairs of localized particles. Two entanglement invariants are constructed and it is shown that all entanglement monotones are functions of these. Furthermore, the system has a generic non-trivial local unitary symmetry with a corresponding $2π/3$ fractional topological phase. In addition to this a necessary and sufficient condition for the existence of maximally entangled states in systems of arbitrary numbers of delocalized particles with arbitrary spin, where at most one particle can occupy each mode, is derived.
description: 14 pages. Substantial revision with new results added. References added
Indirect dark-matter detection with MadDM v3.2 -- Lines and Loops
Creators: name: Arina, Chiara
name: Heisig, Jan
name: Maltoni, Fabio
name: Massaro, Daniele
name: Mattelaer, Olivier
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Automated tools for the computation of particle physics' processes have become the backbone of phenomenological studies beyond the standard model. Here, we present MadDM v3.2. This release enables the fully automated computation of loop-induced dark-matter annihilation processes, relevant for indirect detection observables. Special emphasis lies on the annihilation into $γX$, where $X=γ, Z, h$ or any new particle even under the dark symmetry. These processes lead to the sharp spectral feature of monochromatic gamma lines -- a smoking-gun signature of dark matter in our Galaxy. MadDM provides the predictions for the respective fluxes near-Earth and derives constraints from the gamma-ray line searches by Fermi-LAT and HESS. As an application, we discuss the implications for the viable parameter space of a top-philic $t$-channel mediator model and the inert doublet model.
description: 21 pages + references; Minor changes in presentation, references added, matches journal version
Witnessing quantum steering by means of the Fisher information
Creators: name: Gianani, Ilaria
name: Berardi, Vincenzo
name: Barbieri, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Capturing specific kinds of quantum correlation is of paramount importance for quantum networking. Different routes can be taken to achieve this task, highlighting different novel aspects of such quantum correlations. Following the recent theoretical results by Yadin, Fadel and Gessner [Nat. Commun. 12, 2410 (2021)], we demonstrate experimentally how steering manifests in the metrological abilities of a bipartite state. Our results confirm the relevance of this novel approach, and compare the outcome with already employed alternatives.
description: New version including the material in the Erratum
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the correlation function of LOWZ and CMASS galaxies in Data Release 12
Creators: name: Cuesta, Antonio J.
name: Vargas-Magaña, Mariana
name: Beutler, Florian
name: Bolton, Adam S.
name: Brownstein, Joel R.
name: Eisenstein, Daniel J.
name: Gil-Marín, Héctor
name: Ho, Shirley
name: McBride, Cameron K.
name: Maraston, Claudia
name: Padmanabhan, Nikhil
name: Percival, Will J.
name: Reid, Beth A.
name: Ross, Ashley J.
name: Ross, Nicholas P.
name: Sánchez, Ariel G.
name: Schlegel, David J.
name: Schneider, Donald P.
name: Thomas, Daniel
name: Tinker, Jeremy
name: Tojeiro, Rita
name: Verde, Licia
name: White, Martin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present distance scale measurements from the baryon acoustic oscillation signal in the CMASS and LOWZ samples from the Data Release 12 of the Baryon Oscillation Spectroscopic Survey (BOSS). The total volume probed is 14.5 Gpc$^3$, a 10 per cent increment from Data Release 11. From an analysis of the spherically averaged correlation function, we infer a distance to $z=0.57$ of $D_V(z)r^{\rm fid}_{\rm d}/r_ {\rm d}=2028\pm21$ Mpc and a distance to $z=0.32$ of $D_V(z)r^{\rm fid}_{\rm d}/r_{\rm d}=1264\pm22$ Mpc assuming a cosmology in which $r^{\rm fid}_{\rm d}=147.10$ Mpc. From the anisotropic analysis, we find an angular diameter distance to $z=0.57$ of $D_{\rm A}(z)r^{\rm fid}_{\rm d}/r_{\rm d}=1401\pm21$ Mpc and a distance to $z=0.32$ of $981\pm20$ Mpc, a 1.5 per cent and 2.0 per cent measurement respectively. The Hubble parameter at $z=0.57$ is $H(z)r_{\rm d}/r^{\rm fid}_{\rm d}=100.3\pm3.7$ km s$^{-1}$ Mpc$^{-1}$ and its value at $z=0.32$ is $79.2\pm5.6$ km s$^{-1}$ Mpc$^{-1}$, a 3.7 per cent and 7.1 per cent measurement respectively. These cosmic distance scale constraints are in excellent agreement with a $Λ$CDM model with cosmological parameters released by the recent Planck 2015 results.
description: 18 pages, 10 figures, 13 tables. Matches version accepted for publication in MNRAS. Here we account for a systematic error budget not included in the previous version of this manuscript
Identifying the Information Needs of Biomedical Equipment Technicians in the Developing World
Creators: name: Stanco, Cassandra
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016
Subjects: Digital libraries
Biotechnology libraries
Medical informatics

description: This study describes a digital survey of Biomedical Equipment Technicians (BMETs), biomedical engineers, and managers in the biomedical field that work in the developing world. The survey was conducted to determine the information needs and preferences of this community regarding digital libraries and digital information seeking. A digital survey was distributed via email, posted to the online forums Infratech and HIFA, and posted to the homepage of Engineering World Health's BMET Library (http://library.ewh.org). The survey indicated information seeking behavior centered on print technical information, search engines, and technical forums. It illuminated specific information needs such as a desire for visual materials, specific technical information, and stable formats for digital resources.
On stably finiteness for $C^*$-algebras of exponential solvable Lie groups
Creators: name: Beltita, Ingrid
name: Beltita, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Operator Algebras (math.OA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 22D25, Secondary 22E27

description: We study the link between stably finiteness and stably projectionless-ness for $C^*$-algebras of solvable Lie groups. We show that these two properties are equivalent if the dimension of the group is not divisible by $4$; otherwise, they are not necessarily equivalent. To provide examples proving the last assertion, we study exponential solvable Lie groups that have nonempty finite open sets in their unitary dual.
description: 35 pages
MS Gr. class. c. 3 548
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. 3. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
Understanding domain-wall encoding theoretically and experimentally
Creators: name: Berwald, Jesse
name: Chancellor, Nicholas
name: Dridi, Raouf
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the method of encoding pairwise interactions of higher-than-binary discrete variables (these models are sometimes referred to as discrete quadratic models) into binary variables based on domain walls on one dimensional Ising chains. We discuss how this is relevant to quantum annealing, but also many gate model algorithms such as VQE and QAOA. We theoretically show that for problems of practical interest for quantum computing and assuming only quadratic interactions are available between the binary variables, it is not possible to have a more efficient general encoding in terms of number of binary variables per discrete variable. We furthermore use a D-Wave Advantage 1.1 flux qubit quantum annealing computer to show that the dynamics effectively freeze later for a domain-wall encoding compared to a traditional one-hot encoding. This second result could help explain the dramatic performance improvement of domain wall over one hot which has been seen in a recent experiment on D-Wave hardware. This is an important result because usually problem encoding and the underlying physics are considered separately, our work suggests that considering them together may be a more useful paradigm. We argue that this experimental result is also likely to carry over to a number of other settings, we discuss how this has implications for gate-model and quantum-inspired algorithms.
description: 15 pages, 16 figures, typo in metadata fixed in v2, referee requested changes in v3, accepted in Royal Society Philosophical Transactions A, current version matches author accepted manuscript
Nef line bundles on Calabi-Yau threefolds, I
Creators: name: Lazić, Vladimir
name: Oguiso, Keiji
name: Peternell, Thomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J30, 14J32, 32Q25, 14F10

description: We prove that a nef line bundle $\mathcal L$ with $c_1(\mathcal L)^2 \ne 0$ on a Calabi-Yau threefold $X$ with Picard number $2$ and with $c_3(X) \ne 0$ is semiample, that is, some multiple of $\mathcal L$ is generated by global sections.
MS Gr. class. c. 3 549
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. 2. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
Shifting the Voltage Drop in Electron Transport through a Single Molecule
Creators: name: Karan, Sujoy
name: Jacob, David
name: Karolak, Michael
name: Hamann, Christian
name: Wang, Yongfeng
name: Weismann, Alexander
name: Lichtenstein, Alexander I.
name: Berndt, Richard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A Mn-porphyrin was contacted on Au(111) in a low-temperature scanning tunneling microscope (STM). Differential conductance spectra show a zero-bias resonance that is due to an underscreened Kondo effect according to many-body calculations. When the Mn center is contacted by the STM tip, the spectrum appears to invert along the voltage axis. A drastic change in the electrostatic potential of the molecule involving a small geometric relaxation is found to cause this observation.
description: 8 pages, 8 figures (including supplemental material); accepted in Phys. Rev. Lett
Rehabilitation interventions in improving preclinical mobility limitation outcomes in middle-aged and older adults’ population: a scoping review protocol
Creators: name: Lai, Aiping
name: Morgan, Ashley
name: `Richardson, Julie
name: Griffith, Lauren
name: Kuspinar, Ayse
name: Smith-Turchyn, Jenna
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Veterinary Medicine
subject: Public Health
subject: Medicine and Health Sciences
subject: Arts and Humanities
subject: Rehabilitation and Therapy
subject: preclinical mobility limitation; middle-aged; older adults; intervention

description: Objectives: This scoping review aims to understand the extent and type of evidence about preclinical mobility limitation (PCML) intervention studies that have been implemented in middle age and older adult populations. Introduction: Individuals with PCML could be at a high risk of future functional losses and progression to disability. Interventions implemented effectively in the preclinical stage might be beneficial to preventing or delaying disability progression. An overview of studies undertaken on this emerging topic is now due. Inclusion criteria: Rehabilitation intervention studies that measure PCML outcomes or assess individuals at the stage of PCML will be included. Studies will be considered if the participants are middle-aged (45-64yrs) or older adults (≥ 65yrs) in any setting, including community-dwelling, hospital discharges, or institutional settings. Methods: A search will be conducted in seven databases (MEDLINE, EMBASE, AMED, PsycINFO, CINAHL, Web of Science and Cochrane CENTRAL) to locate relevant intervention studies (English publications from inception onwards). The search strategy will be generated using the PCC framework (population, concept, context) and refined after consulting with a McMaster research librarian. In addition, a manual search from the reference list of retrieved papers and review articles will also be performed. Two reviewers will use predefined inclusion/exclusion criteria to independently review titles, abstracts, and full texts of potential articles. Any disagreements on study selection will be resolved by discussion or consensus involving a third reviewer. Data will be collected and reported according to a predefined data extraction chart and described using qualitative content analysis. Keywords: preclinical mobility limitation; middle-aged; older adults; intervention
Determining Computer Lab Usage for Academic Social and Personal Purposes
Creators: name: Howell, T. Matthew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007
Subjects: Administration--Computer laboratories--Administration
Use studies--College and university students
Surveys--Computer laboratories
Use studies--Computer laboratories

description: Computers have become an integral part of the lives of university students. Although originally envisioned simply as a tool to enhance the educational experience, computers now are used in all facets of students' lives. Campus computer labs share a similar history. Their original goal was to give students access to computers for academic reasons. Now labs are used for a variety of other purposes. The goal of this project was to discover how much usage of computer labs at UNC-Chapel Hill was related to academic, social, and personal purposes. The results show that while students frequently use personal computers for non-academic use, computer lab tasks are predominantly academic in nature. This finding held true across all groups despite some differences in lab activities based upon class year and gender.
Baryogenesis from ultra-slow-roll inflation
Creators: name: Wu, Yi-Peng
name: Pinetti, Elena
name: Petraki, Kalliopi
name: Silk, Joseph
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The ultra-slow-roll (USR) inflation represents a class of single-field models with sharp deceleration of the rolling dynamics on small scales, leading to a significantly enhanced power spectrum of the curvature perturbations and primordial black hole (PBH) formation. Such a sharp transition of the inflationary background can trigger the coherent motion of scalar condensates with effective potentials governed by the rolling rate of the inflaton field. We show that a scalar condensate carrying (a combination of) baryon or lepton number can achieve successful baryogenesis through the Affleck-Dine mechanism from unconventional initial conditions excited by the USR transition. Viable parameter space for creating the correct baryon asymmetry of the Universe naturally incorporates the specific limit for PBHs to contribute significantly to dark matter, shedding light on the cosmic coincidence problem between the baryon and dark matter densities today.
description: 32 + 2 pages, 9 figures, addressed the correlation length of local baryon asymmetry, version matched with publication; v3, added a missing grant information
Domain wall conductivity in semiconducting hexagonal ferroelectric TbMnO$_3$ thin films
Creators: name: Kim, D. J.
name: Connell, J. G.
name: Seo, S. S. A.
name: Gruverman, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Although enhanced conductivity at ferroelectric domain boundaries has been found in BiFeO$_3$ films, Pb(Zr,Ti)O$_3$ films, and hexagonal rare-earth manganite single crystals, the mechanism of the domain wall conductivity is still under debate. Using conductive atomic force microscopy, we observe enhanced conductance at the electrically-neutral domain walls in semiconducting hexagonal ferroelectric TbMnO$_3$ thin films where the structure and polarization direction are strongly constrained along the c-axis. This result indicates that domain wall conductivity in ferroelectric rare-earth manganites is not limited to charged domain walls. We show that the observed conductivity in the TbMnO$_3$ films is governed by a single conduction mechanism, namely, the back-to-back Schottky diodes model tuned by the segregation of defects.
Comment on: Doubly hybrid density functional xDH-PBE0 from a parameter-free global hybrid model PBE0 (J. Chem. Phys. 136, 174103 (2012))
Creators: name: Kesharwani, Manoj Kumar
name: Kozuch, Sebastian
name: Martin, Jan M. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We have compared the performance of Grimme style DH/DSD and Zhang-Xu-Goddard type xDH/xDSD forms for double hybrids. In the DH and DSD forms, KS orbitals with elevated HF exchange and damped DFT correlation are used, while in the xDH and xDSD forms, the KS orbitals are obtained from a conventional hybrid functional with undamped DFT correlation. Generally, the difference in performance between DSD and xDSD functionals is small, slightly favoring xDSD. Augmentation of the xDH form with either same-spin MP2 correlation or a dispersion correction markedly improves performance. Best xDSD results appear to be obtained for orbitals obtained with `exact exchange' fractions in the 50-70% range. The orbitals for xDSD appear to be fairly transferable between different correlation functionals.
description: Journal of Chemical Physics, in press
MS Gr. class. c. 3 550
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. 1. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
Geometry of lines on a cubic fourfold
Creators: name: Gounelas, Frank
name: Kouvidakis, Alexis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J70, 14J35, 14H10, 14M15

description: For a general cubic fourfold $X\subset\mathbb{P}^5$ with Fano scheme of lines $F$, we prove a number of properties of the universal family of lines $I\to F$ and various subloci. We first describe the moduli and ramification theory of the genus four fibration $p:I\to X$ and explore its relation to a birational model of $F$ in $I$. The main part of the paper is devoted to describing the locus $V\subset F$ of triple lines, i.e., the fixed locus of the Voisin map $ϕ:F\dashrightarrow F$, in particular proving it is an irreducible projective singular surface of class $21\mathrm{c}_2(\mathcal{U}_F)$ and detailing its intersection with the locus $S$ of second type lines. A consequence of the analysis of the singularities of $V$ is a geometric proof of the fact that if $X$ is very general, then the number of singular (necessarily 1-nodal) rational curves in $F$ of primitive class is 3780.
description: Minor corrections. Published in IMRN. (This paper was split off from an older version of arXiv:2008.05162)
Archival Collection Development Policies: A Study of Archival Collection Development Policies: A Study of their Content and Collaborative Aims
Creators: name: Wink, Tara R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: Archives--Collection development

description: Collection development is an important aspect of archival theory and work; however, few studies have looked at collection development in practice. It has also been suggested that collection development policies and plans can help to limit competition by including discussions of collaborative agreements. This paper describes a study of online archival collection development policies to determine what these documents contain and whether or not collaboration and competition are discussed. This study searched the websites of 334 repositories' to identify online collection development policies. Available policies were then coded using the 26 elements defined in Faye Phillips' 1984 guidelines for archival collection development policies. Available discussions of collaboration within the policies were also coded. The results suggest that repositories are using a variety of materials when writing policies and collaborative agreements in policies are the exception rather than the rule.
Leptoquark explanation of $h \to μτ$ and muon $(g-2)$
Creators: name: Baek, Seungwon
name: Nishiwaki, Kenji
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider lepton flavor violating Higgs decay, specifically $h \to μτ$, in a leptoquark model. We introduce two scalar leptoquarks with the $SU(3)_c \times SU(2)_L \times U(1)_Y$ quantum numbers, $(3,2,7/6)$ and $(3,2,1/6)$, which do not generate the proton decay within renormalizable level. They can mix with each other by interactions with the standard model Higgs. The constraint from the charged lepton flavor violating process, $τ^{-} \to μ^{-} γ$, is very strong when only one leptoquark contribution is considered. However, we demonstrate that significant cancellation is possible between the two leptoquark contributions. We show that we can explain the CMS (ATLAS) excess in $h \to μτ$. We also show that muon $(g-2)$ anomaly can also be accommodated.
description: 17 pages, 5 figures (v1); 17 pages, 4 figures (v2); 19 pages, 5 figures (v3, published version in PRD)
Genre fiction classification: a study of the Durham County Library
Creators: name: Richard, Amy J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999
Subjects: Public libraries--Browsing
Public libraries--Durham, North Carolina
Fiction--Classification
Browsing

description: This study assesses the impact that the separation of the fiction collection into genre categories has on fiction users at the Durham County Library (DCL) Main Branch.  Grouping fiction by genre has been shown to increase and facilitate browsing in public libraries by decreasing information overload.  Fiction users also have been shown to generally respond favorably to the implementation of a genre fiction classification system, and circulation has been shown to increase after implementation. Results show that a majority of DCL Main Branch fiction users primarily select fiction by browsing and use various informal selection methods when browsing; the majority of fiction users feel the genre fiction classification system is an improvement on the previous alphabetical system; and circulation did not increase due to the genre fiction classification system.
Deliverable 6.1 HYPERGRYD Website
Creators: name: Soley, Gisela
name: Vives, Jordi
name: Velasquez, Sergio
Publisher: name: Zenodo
Year: 2022
Subjects: Social Media profiles
News & Media
Brandbook
Content Management System

description: Deliverable D6.1 provides the HYPERGRYD project website, which accompanies the launch of the project website and describes it. It also explains the process for requesting modifications to the website and the form that must be filled in order to request them.
Feature Selection: A Data Perspective
Creators: name: Li, Jundong
name: Cheng, Kewei
name: Wang, Suhang
name: Morstatter, Fred
name: Trevino, Robert P.
name: Tang, Jiliang
name: Liu, Huan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Feature selection, as a data preprocessing strategy, has been proven to be effective and efficient in preparing data (especially high-dimensional data) for various data mining and machine learning problems. The objectives of feature selection include: building simpler and more comprehensible models, improving data mining performance, and preparing clean, understandable data. The recent proliferation of big data has presented some substantial challenges and opportunities to feature selection. In this survey, we provide a comprehensive and structured overview of recent advances in feature selection research. Motivated by current challenges and opportunities in the era of big data, we revisit feature selection research from a data perspective and review representative feature selection algorithms for conventional data, structured data, heterogeneous data and streaming data. Methodologically, to emphasize the differences and similarities of most existing feature selection algorithms for conventional data, we categorize them into four main groups: similarity based, information theoretical based, sparse learning based and statistical based methods. To facilitate and promote the research in this community, we also present an open-source feature selection repository that consists of most of the popular feature selection algorithms (\url{http://featureselection.asu.edu/}). Also, we use it as an example to show how to evaluate feature selection algorithms. At the end of the survey, we present a discussion about some open problems and challenges that require more attention in future research.
Aperiodic order and spectral properties
Creators: name: Baake, Michael
name: Damanik, David
name: Grimm, Uwe
Publisher: name: arXiv
Year: 2015
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics

description: This article presents a very gentle introduction to the field of aperiodic order, aimed at a general audience. It is intended to provide a "Snapshot of Modern Mathematics" relating to the Oberwolfach mini-workshop "Dynamical versus Diffraction Spectra in the Theory of Quasicrystals" in November/December 2014.
description: 11 pages, 9 figures
The Depiction of Information Technology in Children's Picture Books
Creators: name: Dimac, Lynn D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008
Subjects: Information technology--Children's literature
Picture books
Children's literature--Evaluation

description: Using the method of content analysis, this study examines a random selection of 115 children's picture books and 370 picture book catalog records in the Chapel Hill Public Library's children's collection and OPAC in order to record the depiction of information technology. Utilizing a limited definition of the phrase information technology, the titles, front and back covers, title pages, body text and body illustrations of each book are examined and coded for content, as are the summaries and subject headings contained in the catalog records. The resulting data is analyzed for patterns or anomalies (or the lack of either) in several areas including the following: changes across time, similarities and differences between textual content and the content of illustrations, and thematic approaches to the topic. The study finds an increased presence of information technology in picture books, particularly in the illustrations, but few instances of information technology playing a key thematic role in picture books.
MS Gr. class. c. 3 551
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1008 fr. 1. Philodemus, De vitiis 10
Drawing by Gennaro Casanova
Multistage linguistic conditioning of convolutional layers for speech emotion recognition
Creators: name: Triantafyllopoulos, Andreas
name: Reichel, Uwe
name: Liu, Shuo
name: Huber, Stephan
name: Eyben, Florian
name: Schuller, Björn W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this contribution, we investigate the effectiveness of deep fusion of text and audio features for categorical and dimensional speech emotion recognition (SER). We propose a novel, multistage fusion method where the two information streams are integrated in several layers of a deep neural network (DNN), and contrast it with a single-stage one where the streams are merged in a single point. Both methods depend on extracting summary linguistic embeddings from a pre-trained BERT model, and conditioning one or more intermediate representations of a convolutional model operating on log-Mel spectrograms. Experiments on the MSP-Podcast and IEMOCAP datasets demonstrate that the two fusion methods clearly outperform a shallow (late) fusion baseline and their unimodal constituents, both in terms of quantitative performance and qualitative behaviour. Overall, our multistage fusion shows better quantitative performance, surpassing alternatives on most of our evaluations. This illustrates the potential of multistage fusion in better assimilating text and audio information.
An examination of Internet filters in school library media centers
Creators: name: Ferris, Christine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000
Subjects: Internet filtering software
Internet--School libraries

description: Internet filtering has become an issue since the introduction of the Internet in schools and libraries.  Concerns about "inappropriate content" on the Internet have arisen, especially when children are involved.  This study uses content analysis of messages from LM_NET (a popular mailing list for practicing school library media specialists) to examine common practices and decisions made by school library media specialists with respect to Internet filtering software.  Alternatives to Internet filtering are also discussed.
North Carolina Collection Fiction from 2000-2014
Creators: name: Bowen, Kristen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Library special collections--North Carolina
Fiction--North Carolina
Blogs--Research

description: This study investigated how North Carolina fiction set in North Carolina has developed over the time period of 2000-2014. The North Carolina fiction studied was fiction held in the North Carolina Collection at UNC-Chapel Hill that had been published in the years 2000-2014 and was blogged on the Read North Carolina Novels blog. Seventy-five books were included in the study, and the genres, settings, and authors of these books were examined. Based on the results of the study, the data revealed that the two most popular genres for the years of 2000-2014 were mystery and romance/relationship.  These two genres contain different subgenres and are adaptable to appeal to a wide range of users and also to authors because of their marketability. However, the lack of science fiction/fantasy novels from these years demonstrates the importance of studying North Carolina fiction to determine what is actually occurring within this market.
History Gets Personal: Historical Fiction Mapped to the Curriculum - An Annotated Bibliography
Creators: name: Beisner, Keith
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Historical fiction Education Books & reading--History School libraries American history

description: Historical fiction, integrated into the teaching of history, has many benefits for student learning. Through study of informational texts, students learn the what and when of history, but it is the emotional connection created through reading fiction - identification with people from other cultures and times - that often fosters empathy and increased engagement in the learning process. History becomes personal with historical fiction. This paper maps recent, high quality, young adult historical fiction books to the twentieth-century American history North Carolina eleventh grade curriculum. An Annotated Bibliography of historical fiction books is provided followed by a table in the Appendix, which includes many more books, all of which can be exceedingly useful to Content Area Teachers, School Librarians, and students. The applicable North Carolina Essential Standards and Standard Course of Study standards are included with historic period, major event or subject, bibliographic information, and a brief synopsis for each book.
GMRES-Accelerated ADMM for Quadratic Objectives
Creators: name: Zhang, Richard Y.
name: White, Jacob K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We consider the sequence acceleration problem for the alternating direction method-of-multipliers (ADMM) applied to a class of equality-constrained problems with strongly convex quadratic objectives, which frequently arise as the Newton subproblem of interior-point methods. Within this context, the ADMM update equations are linear, the iterates are confined within a Krylov subspace, and the General Minimum RESidual (GMRES) algorithm is optimal in its ability to accelerate convergence. The basic ADMM method solves a $κ$-conditioned problem in $O(\sqrtκ)$ iterations. We give theoretical justification and numerical evidence that the GMRES-accelerated variant consistently solves the same problem in $O(κ^{1/4})$ iterations for an order-of-magnitude reduction in iterations, despite a worst-case bound of $O(\sqrtκ)$ iterations. The method is shown to be competitive against standard preconditioned Krylov subspace methods for saddle-point problems. The method is embedded within SeDuMi, a popular open-source solver for conic optimization written in MATLAB, and used to solve many large-scale semidefinite programs with error that decreases like $O(1/k^{2})$, instead of $O(1/k)$, where $k$ is the iteration index.
description: 31 pages, 7 figures. Accepted for publication in SIAM Journal on Optimization (SIOPT)
The Scholarly Publishing Habits of STM Assistant Professors
Creators: name: Wellons, Robert Shawn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Open access authors
Open access publishing
Scholarly communication

description: All science, technology, and medical (STM) assistant professors at the University of North Carolina at Chapel Hill were invited to participate in an online study to determine their scholarly publishing behaviors and their attitudes towards open access.  The survey consisted of 36 questions designed to ascertain how tenured-track STM assistant professors perceived the role of open access journals in their work and how those perceptions translated into publishing practices.
A new estimator for LARCH processes
Creators: name: Bardet, Jean-Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The aim of this paper is to provide a new estimator of parameters for LARCH$(\infty)$ processes, and thus also for LARCH$(p)$ or GLARCH$(p,q)$ processes. This estimator results from minimising a contrast leading to a least squares estimator for the absolute values of the process. Strong consistency and asymptotic normality are shown, and convergence occurs at the rate $\sqrt n$ as well in short or long memory cases. Numerical experiments confirm the theoretical results and show that this new estimator significantly outperforms the smoothed quasi-maximum likelihood estimators or weighted least squares estimators commonly used for such processes.
An Annotated Bibliography of Reproductive Rights Laws in India
Creators: name: Rao, Neeri K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: India
Abortion

description: This annotated bibliography contains primary and secondary sources of reproductive rights law in India, including statutes, case law, and scholarly books and articles published in India and abroad. The sources contained in this bibliography trace the development of Indian reproductive rights law over the last 40 years; however, new developments, such as the rise of reproductive outsourcing, are addressed. Because Indian courts and legal scholars frequently refer to foreign sources of law in areas where Indian laws are not fully developed, such as surrogacy law, an appendix of American legal sources which are relevant to Indian reproductive rights law is also included.
Discerning Singlet and Triplet scalars at the electroweak phase transition and Gravitational Wave
Creators: name: Bandyopadhyay, Priyotosh
name: Jangid, Shilpa
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article we examine the prospect of first order phase transition with a Y=0 real $SU(2)$ triplet extension of the Standard Model, which remains odd under $Z_2$, considering the observed Higgs boson mass, perturbative unitarity, dark matter constraints, etc. Especially we investigate the role of Higgs-triplet quartic coupling considering one- and two-loop beta functions and compare the results with the complex singlet extension case. It is observed that at the one-loop level, no solution can be found for both, demanding the Planck scale perturbativity. However, for a much lower scale of $10^4$ GeV, the singlet case predicts first order phase transition consistent with the observed Higgs boson mass. On the contrary, at the two-loop, both the scenarios foresee strongly first order phase transition consistent with the observed Higgs mass with upper bounds of 310, 909 GeV on the triplet and singlet masses, respectively. This puts the triplet in apparent contradiction with the observed dark matter relic bound and thus requires additional field for that. The preferred regions of the parameter space in both cases are identified by benchmark points, that predict the Gravitational Waves with detectable frequencies in the present and future experiments.
description: 28 pages, 20 figures, 5 tables
MS Gr. class. c. 3 553
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1012 col. 6 col. 7 col. 8 col. 9. Demetrius Laco
Drawing by Giuseppe (?) Casanova
Gravitational collapse and the thermal evolution of low-metallicity gas clouds in the early Universe
Creators: name: Chiaki, Gen
name: Yoshida, Naoki
name: Hirano, Shingo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study gravitational collapse of low-metallicity gas clouds and the formation of protostars by three-dimensional hydrodynamic simulations. Grain growth, non-equilibrium chemistry, molecular cooling, and chemical heating are solved in a self-consistent manner for the first time. We employ the realistic initial conditions for the abundances of metal and dust, and the dust size distribution obtained from recent Population III supernova calculations. We also introduce the state-of-the-art particle splitting method based on the Voronoi tessellation and achieve an extremely high mass resolution of ~10^{-5} Msun (10 earth masses) in the central region. We follow the thermal evolution of several early clouds with various metallicities. We show that the condition for cloud fragmentation depends not only on the gas metallicity but also on the collapse timescale. In many cases, the cloud fragmentation is prevented by the chemical heating owing to molecular hydrogen formation even though dust cooling becomes effective. Meanwhile, in several cases, efficient OH and H2O cooling promotes the cloud elongation, and then cloud "filamentation" is driven by dust thermal emission as a precursor of eventual fragmentation. While the filament fragmentation is driven by rapid gas cooling with >10^{-5} Zsun, fragmentation occurs in a different manner by the self-gravity of a circumstellar disk with <10^{-5} Zsun. We use a semi-analytic model to estimate the number fraction of the clouds which undergo the filament fragmentation to be a several percents with 10^{-5}--10^{-4} Zsun. Overall, our simulations show a viable formation path of the recently discovered Galactic low-mass stars with extremely small metallicities.
description: 20 pages, 14 figures, accepted to MNRAS
Do most polynomials generate a prime ideal?
Creators: name: Yu, Josephine
Publisher: name: arXiv
Year: 2015
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13F20, 14M25, 14T05

description: For which monomial supports do most polynomials generate a prime ideal? We give necessary and sufficient conditions for the radical of the ideal to be prime over an algebraically closed field. In characteristic zero, the same conditions give primeness. As an application we show that under the same combinatorial conditions on Newton polytopes, the stable intersection of tropical hypersurfaces is connected through codimension one.
description: 6 pages. Minor changes from version 2. Removed example (5'). Added an open problem section
Study of Calibration of Solar Radio Spectrometers and the quiet-Sun Radio Emission
Creators: name: Tan, Chengming
name: Yan, Yihua
name: Tan, Baolin
name: Fu, Qijun
name: Liu, Yuying
name: Xu, Guirong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This work presents a systematic investigation of the influence of weather conditions on the calibration errors by using Gaussian fitness, least chi-square linear fitness and wavelet transform to analyze the calibration coefficients from observations of the Chinese Solar Broadband Radio Spectrometers (at frequency bands of 1.0-2.0 GHz, 2.6-3.8 GHz, and 5.2-7.6 GHz) during 1997-2007. We found that calibration coefficients are influenced by the local air temperature. Considering the temperature correction, the calibration error will reduce by about $10\%-20\%$ at 2800 MHz. Based on the above investigation and the calibration corrections, we further study the radio emission of the quiet-Sun by using an appropriate hybrid model of the quiet-Sun atmosphere. The results indicate that the numerical flux of the hybrid model is much closer to the observation flux than that of other ones.
description: Accepted by Apj, 24 pages, 10 pages, 3 tables