cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-similar inverse cascade of magnetic helicity driven by the chiral anomaly
Creators: name: Hirono, Yuji
name: Kharzeev, Dmitri
name: Yin, Yi
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Soft Condensed Matter (cond-mat.soft)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: For systems with charged chiral fermions, the imbalance of chirality in the presence of magnetic field generates an electric current - this is the Chiral Magnetic Effect (CME). We study the dynamical real-time evolution of electromagnetic fields coupled by the anomaly to the chiral charge density and the CME current by solving the Maxwell-Chern-Simons equations. We find that the CME induces the inverse cascade of magnetic helicity towards the large distances, and that at late times this cascade becomes self-similar, with universal exponents. We also find that in terms of gauge field topology the inverse cascade represents the transition from linked electric and magnetic fields (Hopfions) to the knotted configuration of magnetic field (Chandrasekhar-Kendall states). The magnetic reconnections are accompanied by the pulses of the CME current directed along the magnetic field lines. We devise an experimental signature of these phenomena in heavy ion collisions, and speculate about implications for condensed matter systems.
description: 21 pages, 4 figures, published version
Exhibitionism: Improving Access to Oral Histories through Online Exhibits
Creators: name: Bertling, Carrie M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008
Subjects: Exhibits--Virtual
Audio-visual archives--United States
Archival materials--Exhibition
World Wide Web--Exhibits
Special Collections--Oral History
Library exhibits--Design

description: This study provides an in-depth examination of digital components used in the Web presence of university collections of oral histories. The researcher examines ways in which twenty-two universities are using the World Wide Web to supplement access to their oral history collections and provide value-added content for these unique resources. Descriptions of patterns and inconsistencies are provided to highlight ways in which repositories of oral histories can incorporate digital components to improve future collection website and online exhibit design projects. The primary purpose of this study is to address whether online exhibits used on repository websites are more effective environments than the websites themselves for supplementing access to oral histories and providing value-added content to these resources. The study suggests that universities that include online exhibits within their Web presence are overwhelmingly more likely to provide online patrons with supplemented access to their oral history collections and enhance these resources with value-added content.
American Academic Librarians' Attitudes Toward Recreational Reading: A Content Analysis of the Periodical Literature, 1945-1975
Creators: name: Peterson, Kelsy L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006
Subjects: Academic librarians--United States--Attitudes
Content analysis (Communication)
Academic libraries--United States--History--20th Century
College students--Books and reading--United States

description: This study employed content analysis of the periodical literature of librarianship to address the current gap in knowledge about academic librarians' attitudes toward recreational reading between 1945 and 1975. The study's results suggest that during this time period, many influential members of the academic library community supported recreational reading for undergraduates and believed it was part of an academic library's mission to encourage it. It appears that interest in and support for recreational reading was at its height between 1951 and 1960. Several recent articles in the library literature have inferred that recreational reading was historically viewed as outside of the academic library's purview. By introducing evidence to refute this commonly held belief, this research may help re-shape the discourse surrounding recreational reading in academic libraries. In addition, this new information may assist practicing academic librarians in making better-informed decisions about recreational reading collections and services in their own libraries.
But Where Is That Tape?: The Effects of Processing and Arrangement of Mixed-Material Archival Collections on the Discoverability of Audiovisual Materials in Online Finding Aids.
Creators: name: McGowan, Heather
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Academic archives and special collections are acquiring a growing number of collections that contained mixed-format, mixed-material, or mixed-media items. This paper seeks to understand both how and why academic archives are processing, arranging, and describing audiovisual materials within these mixed-materials collections. Through interviews with nine archivists at large, academic archives and an examination of both existing finding aids and processing manuals, this research examines the disparity between theory and practice of the processing of mixed-material collections and the subsequent discovery of the audiovisual material by users of online finding aids.
Start-up Finance for First Time Entrepreneurs
Creators: name: Crofton, Karen Marie
Publisher: name: University of Colorado Boulder
Year: 2022

description: This resource describes the basic finance aspects of a startup for the target audience of first time entrepreneurs. It includes a slide deck and two supplemental spreadsheets. The creation of this work “Startup Finance for First Time Entrepreneurs” was supported by Open CU Boulder 2021-2022, a grant funded by the Colorado Department of Higher Education with additional support from the CU Office of the President, CU Office of Academic Affairs, CU Boulder Office of the Provost, and CU Boulder University Libraries.
Cosmologically safe QCD axion as a present from extra dimension
Creators: name: Kawasaki, Masahiro
name: Yamada, Masaki
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We propose a QCD axion model where the origin of PQ symmetry and suppression of axion isocurvature perturbations are explained by introducing an extra dimension. Each extra quark-antiquark pair lives on branes separately to suppress PQ breaking operators. The size of the extra dimension changes after inflation due to an interaction between inflaton and a bulk scalar field, which implies that the PQ symmetry can be drastically broken during inflation to suppress undesirable axion isocurvature fluctuations.
description: 6 pages
MS Gr. class. c. 4 860
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 19. Philodemus, De morte 4
Drawing by Carlo Orazi
Heterogeneous changes of soil microclimate in high mountains and glacier forelands
Creators: name: Marta, Silvio
name: Zimmer, Anais
name: Caccianiga, Marco
name: Gobbi, Mauro
name: Ambrosini, Roberto
name: Azzoni, Roberto Sergio
name: Gili, Fabrizio
name: Pittino, Francesca
name: Wilfried, Thuiller
name: Provenzale, Antonello
name: Ficetola, Gentile Francesco
Publisher: name: Zenodo
Year: 2023

description: E-poster at the EuroGEO workshop 2023 (Bozen)
A Film Preservation Metadata Tool for Moving Image Archives
Creators: name: Clauset, E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Film archives
Motion pictures
Metadata
Motion picture film--Conservation & restoration

description: This paper describes the development of a database-driven, web-based application that  stores motion picture film preservation metadata. The application is derived from the  paper film inspection forms that are used in many moving image archives to track the  condition and changes in condition over time of film material. Many types of film are  volatile and subject to fairly rapid chemical deterioration under the right environmental  conditions. Handling of films may also cause wear or damage. The ability to better store  and access film preservation metadata will help archivists to better gauge the success of  their film preservation practices.
On the neutron-capture elements across the Galactic thin disk using Cepheids
Creators: name: da Silva, R.
name: Lemasle, B.
name: Bono, G.
name: Genovali, K.
name: McWilliam, A.
name: Cristallo, S.
name: Bergemann, M.
name: Buonanno, R.
name: Fabrizio, M.
name: Ferraro, I.
name: Francois, P.
name: Iannicola, G.
name: Inno, L.
name: Laney, C. D.
name: Kudritzki, R. -P.
name: Matsunaga, N.
name: Nonino, M.
name: Primas, F.
name: Przybilla, N.
name: Romaniello, M.
name: Thevenin, F.
name: Urbaneja, M. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new accurate abundances for five neutron-capture (Y, La, Ce, Nd, Eu) elements in 73 classical Cepheids located across the Galactic thin disk. Individual abundances are based on high spectral resolution (R ~ 38,000) and high signal-to-noise ratio (S/N ~ 50-300) spectra collected with UVES at ESO VLT for the DIONYSOS project. Taking account for similar Cepheid abundances provided either by our group (111 stars) or available in the literature, we end up with a sample of 435 Cepheids covering a broad range in iron abundances (-1.6 < [Fe/H] < 0.6). We found, using homogeneous individual distances and abundance scales, well defined gradients for the above elements. However, the slope of the light s-process element (Y) is at least a factor of two steeper than the slopes of heavy s- (La, Ce, Nd) and r- (Eu) process elements. The s to r abundance ratio ([La/Eu]) of Cepheids shows a well defined anticorrelation with of both Eu and Fe. On the other hand, Galactic field stars attain an almost constant value and only when they approach solar iron abundance display a mild enhancement in La. The [Y/Eu] ratio shows a mild evidence of a correlation with Eu and, in particular, with iron abundance for field Galactic stars. We also investigated the s-process index - [hs/ls] - and we found a well defined anticorrelation, as expected, between [La/Y] and iron abundance. Moreover, we found a strong correlation between [La/Y] and [La/Fe] and, in particular, a clear separation between Galactic and Sagittarius red giants. Finally, the comparison between predictions for low-mass asymptotic giant branch stars and the observed [La/Y] ratio indicate a very good agreement over the entire metallicity range covered by Cepheids. However, the observed spread, at fixed iron content, is larger than predicted by current models.
description: 30 pages, 12 figures, 7 tables. Accepted for publication in the Astronomy and Astrophysics journal
Familial Dysfunction in Young Adult Horror Fiction
Creators: name: Lambert, Robert W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005
Subjects: Content analysis--Young adults' literature
Horror Fiction--Evaluation
Young adults' literature--Evaluation
Horror Fiction

description: This paper examines how young adult horror novels use dysfunctional family states to  represent the anxieties of the protagonists. Sixteen young adult horror novels written  between 1982 and 2002 were studied and subjected to latent content analysis. The study  found that every novel depicted dysfunctional families and that dispelling the dysfunction  constituted the true resolution of the story.
On the Long-Repetition-Free 2-Colorability of Trees
Creators: name: Antonides, Joseph
name: Kiers, Claire
name: Yamzon, Nicole
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A word $\bar{w} = \bar{u}\bar{u}$ is a $long$ $square$ if $\bar{u}$ is of length at least 3; a word $\bar{w}$ is $long$-$square$-$free$ if $\bar{w}$ contains no sub-word that is a long square. We can use words to generate graph colorings; a graph coloring is called $long$-$repetition$-$free$ if the word formed by the coloring of each path in the graph is long-square-free. Our results show that every rooted tree of radius less than or equal to seven is long-repetition-free two-colorable. We also prove there exists a class of trees which are not long-repetition-free two-colorable.
Mid-IR Enhanced Galaxies in the Coma & Virgo Cluster: lenticulars with a high star formation rate
Creators: name: Riguccini, Laurie
name: Temi, Pasquale
name: Amblard, Alexandre
name: Fanelli, Michael
name: Brighenti, Fabrizio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the properties of early-type galaxies (ETGs), including ellipticals (E) and lenticulars (S0), in rich environments such as clusters of galaxies (Virgo and Coma). The L_24/L_K distribution of ETGs in both Virgo and Coma clusters shows that some S0s have a much larger L_24/L_K ratio (0.5 to ~2 dex) than the bulk of the ETG population. This could be interpreted as an enhanced star formation rate in these lenticulars. We compare the optical colors of galaxies in these two clusters and investigate the nature of these sources with a large L24/L_K ratio by looking at their spatial distribution within the cluster, by analyzing their optical spectra and by looking at their optical colors compared to late-types. We obtain 10 Coma and 3 Virgo early-type sources with larger L24/L_K ratios than the bulk of their population. We call these sources Mid-Infrared Enhanced Galaxies (MIEGs). In Coma, they are mostly located in the South-West part of the cluster where a substructure is falling onto the main cluster. MIEGs present lower g-r color than the rest of the ETG sample, because of a blue continuum. We interpret the excess L24/L_K ratio as evidence for an enhanced star-formation induced as a consequence of their infall into the main cluster.
description: Accepted for publication in ApJ
Music Information Literacy Curriculum: a Content Analysis
Creators: name: Girelli, Amanda
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018
Subjects: Music Librarianship
Curricula (Courses of study)
Undergraduate libraries
Information Literacy Research
Music libraries

description: This study describes a content analysis of materials used to teach library and information literacy skills to undergraduate music students. The analysis was conducted to determine if and how music librarians who design and implement this instruction are informed by the Music Library Association’s publication, MLA Information Literacy Instructional Objectives for Undergraduate Music Students. This document is based on the Association of College and Research Libraries’ Information Literacy Competency Standards for Higher Education.Seven documents from two institutions were included in this study, and their content was compared to the Objectives – both the original text of the Standards and the MLA’s music-specific additions. The documents varied in format – some were intended for use by instructors, others were for students. The amount of clearly displayed influence by the music-specific content in the Objectives varied greatly. This research indicates that there is little standardization or regularity in the Objectives’ influence.
model-checkpoints_p7-egl-ml-tiles-shift-rotate-200-regions-clean
Creators: name: Khare, Harshavardhan
Publisher: name: Zenodo
Year: 2023

description: model_checkpoints.zip: Model checkpoints (i.e. the trained tensorflow-keras model) for the CNN trained to classify EGL and ML regions in the mouse ssSEM images. The model was trained on the following dataset. P7-EGL-ML-tiles-shift-rotate_200regions.zip: Training data for the CNN model mentioned above. The dataset contains tiles at mip level 3 (resolution- 32 x 32 nm^2 per pixel) obtained from ssSEM of a P7 mouse cerebellum (available at https://bossdb.org/project/wilson2019)
MS Gr. class. c. 4 861
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 20. Philodemus, De morte 4
Drawing by Carlo Orazi
A Simplified Model for Dark Matter Interacting Primarily with Gluons
Creators: name: Godbole, Rohini M.
name: Mendiratta, Gaurav
name: Tait, Tim M. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a simple renormalizable model providing a UV completion for dark matter whose interactions with the Standard Model are primarily via the gluons. The model consists of scalar dark matter interacting with scalar colored mediator particles. A novel feature is the fact that (in contrast to more typical models containing dark matter whose interactions are mediated via colored scalars) the colored scalars typically decay into multi-quark final states, with no associated missing energy. We construct this class of models and examine associated phenomena related to dark matter annihilation, scattering with nuclei, and production at colliders.
description: 15 pages, 3 figures
Making high resolution microclimate information collaborative: a VRE approach to soil temperature in high mountains and glacier forelands
Creators: name: Marta, Silvio
name: Bove, Pasquale
name: Coro, Gianpaolo
name: Ficetola, Gentile Francesco
name: Provenzale, Antonello
Publisher: name: Zenodo
Year: 2023

description: Presentation at the XXXII annual congress of the Società Italiana di Ecologia
MS Gr. class. c. 4 862
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 21. Philodemus, De morte 4
Drawing by Carlo Orazi
Spontaneous reconnection at a separator current layer. I. Nature of the reconnection
Creators: name: Stevenson, Julie E. H.
name: Parnell, Clare E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic separators, which lie on the boundary between four topologically-distinct flux domains, are prime locations in three-dimensional magnetic fields for reconnection, especially in the magnetosphere between the planetary and interplanetary magnetic field and also in the solar atmosphere. Little is known about the details of separator reconnection and so the aim of this paper, which is the first of two, is to study the properties of magnetic reconnection at a single separator. Three-dimensional, resistive magnetohydrodynamic numerical experiments are run to study separator reconnection starting from a magnetohydrostatic equilibrium which contains a twisted current layer along a single separator linking a pair of opposite-polarity null points. The resulting reconnection occurs in two phases. The first is short involving rapid-reconnection in which the current at the separator is reduced by a factor of around 2.3. Most ($75\%$) of the magnetic energy is converted during this phase, via Ohmic dissipation, directly into internal energy, with just $0.1\%$ going into kinetic energy. During this phase the reconnection occurs along most of the separator away from its ends (the nulls), but in an asymmetric manner which changes both spatially and temporally over time. The second phase is much longer and involves slow impulsive-bursty reconnection. Again Ohmic heating dominates over viscous damping. Here, the reconnection occurs in small localised bursts at random anywhere along the separator.
A Comparison of the Goals of Users and IT Staff in One Professional School
Creators: name: Wilson, James H., Jr.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005
Subjects: Human Resources
Relationship between Information Technology and Users
Organizational Goals
Information technology

description: This study compares the goals of users and IT staff in one organization. The organization used in the study, the Kenan-Flagler Business School, is a highly respected institution that uses technology in every day classroom settings. All 266 faculty and staff members were invited to take a web survey designed to analyze their thoughts on the school's goals, policies, and group membership. The study showed that there is no statistical difference in the perception of organizational goals between users and IT staff, but there were other relationships discovered that may affect goal perceptions such as department membership, years of employment, and employment type.
MS Gr. class. c. 4 863
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 22. Philodemus, De morte 4
Drawing by Carlo Orazi
The Evolution of Science Branch Libraries and Print Use at the University of North Carolina at Chapel Hill from 2000 to 2010
Creators: name: Lewis, Kelsey E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Scientific and technical libraries
Academic libraries

description: The purpose of science branch libraries at the University of North Carolina at Chapel Hill  has shifted recently with the rapid emergence of electronic resources such as journal  databases and e-books. This shift caused a decline in use of print materials like  monographs and serials but has provided new ways for patrons to locate needed  information. Recreating the role of a science librarian at the University of North Carolina  at Chapel Hill can help the library system provide the best reference and instructional  services for mixed media collections. Although the science branch libraries have  consolidated, their physical collections are still significant to the academic community  and will continue to be so into the foreseeable future.
The Three-mm Ultimate Mopra Milky Way Survey. I. Survey Overview, Initial Data Releases, and First Results
Creators: name: Barnes, Peter J.
name: Muller, Erik
name: Indermuehle, Balthasar
name: O'Dougherty, Stefan N.
name: Lowe, Vicki
name: Cunningham, Maria R.
name: Hernandez, Audra K.
name: Fuller, Gary A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We describe a new mm-wave molecular-line mapping survey of the southern Galactic Plane and its first data releases. The Three-mm Ultimate Mopra Milky Way Survey (ThrUMMS) maps a 60°x2° sector of our Galaxy's fourth quadrant, using a combination of fast mapping techniques with the Mopra radio telescope, simultaneously in the J=1-0 lines of $^{12}$CO, $^{13}$CO, C$^{18}$O, and CN near 112 GHz at ~arcminute and ~0.3 km s$^{-1}$ resolution, with ~2 K channel$^{-1}$ sensitivity for $^{12}$CO and ~1 K channel$^{-1}$ for the other transitions. The calibrated data cubes from these observations are made available to the community after processing through our pipeline. Here, we describe the motivation for ThrUMMS, the development of new observing techniques for Mopra, and how these techniques were optimised to the objectives of the survey. We showcase some sample data products and describe the first science results on CO-isotopologue line ratios. These vary dramatically across the Galactic Plane, indicating a very wide range of optical depth and excitation conditions, from warm and translucent to cold and opaque. The population of cold clouds in particular have optical depths for $^{12}$CO easily exceeding 100. We derive a new, nonlinear conversion law from $^{12}$CO integrated intensity to column density, which suggests that the molecular mass traced by CO in the Galactic disk may have been substantially underestimated. This further suggests that some global relationships in disk galaxies, such as star formation laws, may need to be recalibrated. The large ThrUMMS team is proceeding with several other science investigations.
description: 24 pages, 21 figures. Accepted by ApJ. Higher resolution version (17 Mb) available at http://www.astro.ufl.edu/thrumms
The American Library Association, US Government, and the Fight for Intellectual Freedom, 1939-1953
Creators: name: Bolen, Matthew T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006
Subjects: Intellectual freedom--History
Propaganda and the Library
American Library Association--History
Librarians--Political activities
Library Bill of Rights--History
Censorship--History

description: In 1953, the American Library Association (ALA) and segments of the US government clashed over a series of Senate hearings investigating the presence of Communist and "subversive" books in the State Department's overseas libraries. The public opposition to these investigations was the culmination of a series of increasingly outspoken efforts by the ALA to oppose censorship dating back to before World War II.  From the 1939 Library Bill of Rights to "The Freedom to Read" and Overseas Library Statement in 1953, this paper traces the evolving nature of the ALA's stance on matters of intellectual freedom and censorship, both at home and abroad. The paper also addresses the development of the United States government's overseas information program, from one that initially sought to foster cultural exchange into one that later became a primary tool for American propaganda abroad, and documents the ALA's response to these changes.
MS Gr. class. c. 4 864
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 25. Philodemus, De morte 4
Drawing by Carlo Orazi
Quasar Variability in the Mid-Infrared
Creators: name: Kozlowski, Szymon
name: Kochanek, Christopher S.
name: Ashby, Matthew L. N.
name: Assef, Roberto J.
name: Brodwin, Mark
name: Eisenhardt, Peter R.
name: Jannuzi, Buell T.
name: Stern, Daniel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Decadal IRAC Bootes Survey is a mid-IR variability survey of the ~9 sq. deg. of the NDWFS Bootes Field and extends the time baseline of its predecessor, the Spitzer Deep, Wide-Field Survey (SDWFS), from 4 to 10 years. The Spitzer Space Telescope visited the field five times between 2004 and 2014 at 3.6 and 4.5 microns. We provide the difference image analysis photometry for a half a million mostly extragalactic sources. In mid-IR color-color plane, sources with quasar colors constitute the largest variability class (75%), 16% of the variable objects have stellar colors and the remaining 9% have the colors of galaxies. Adding the fifth epoch doubles the number of variable active galactic nuclei (AGNs) for the same false positive rates as in SDWFS, or increases the number of sources by 20% while decreasing the false positive rates by factors of 2-3 for the same variability amplitude. We quantify the ensemble mid-IR variability of ~1500 spectroscopically confirmed AGNs using single power-law structure functions (SFs), which we find to be steeper (index $γ=0.45$) than in the optical ($γ=0.3$), leading to much lower amplitudes at short time-lags. This provides evidence for large emission regions, smoothing out any fast UV/optical variations, as the origin of infrared quasar variability. The mid-IR AGN SF slope $γ$ seems to be uncorrelated with both the luminosity and rest-frame wavelength, while the amplitude shows an anti-correlation with the luminosity and a correlation with the rest-frame wavelength.
description: published in ApJ
MS Gr. class. c. 4 865
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 28. Philodemus, De morte 4
Drawing by Carlo Orazi
Free, Cost-efficient, and Worthwhile Solutions to Learning Japanese: a Survey of Established and Emerging Resources.
Creators: name: Morris, Jonathan L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Language and languages--Study and teaching--Technological innovations--Bibliography
Language and languages--Computer-assisted instruction--Bibliography
Modern languages--Study and teaching--Bibliography
Japanese language--Study and teaching--English speakers--Bibliography

description: Recently, the increased availability of Creative Commons licensed Japanese reference sources, the increased popularity of mobile software, and the development of social language learning networks has given rise to a new class of free and cost efficient resources for learning Japanese. Although many are still in the early stages of development, a number of these have reached a level of high quality sufficient to rival even the expensive, in-place product leaders in language learning. Some of these new resources are even surpassing the genre's leaders in the features that they offer. This bibliography explores the resources currently available for learning the Japanese language in English and includes use-based evaluations on the products leaders in the field, innovative resources of high potential, and a number of lesser known resources also.
Robust Estimation of Structured Covariance Matrix for Heavy-Tailed Elliptical Distributions
Creators: name: Sun, Ying
name: Babu, Prabhu
name: Palomar, Daniel P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This paper considers the problem of robustly estimating a structured covariance matrix with an elliptical underlying distribution with known mean. In applications where the covariance matrix naturally possesses a certain structure, taking the prior structure information into account in the estimation procedure is beneficial to improve the estimation accuracy. We propose incorporating the prior structure information into Tyler's M-estimator and formulate the problem as minimizing the cost function of Tyler's estimator under the prior structural constraint. First, the estimation under a general convex structural constraint is introduced with an efficient algorithm for finding the estimator derived based on the majorization minimization (MM) algorithm framework. Then, the algorithm is tailored to several special structures that enjoy a wide range of applications in signal processing related fields, namely, sum of rank-one matrices, Toeplitz, and banded Toeplitz structure. In addition, two types of non-convex structures, i.e., the Kronecker structure and the spiked covariance structure, are also discussed, where it is shown that simple algorithms can be derived under the guidelines of MM. Numerical results show that the proposed estimator achieves a smaller estimation error than the benchmark estimators at a lower computational cost.
Lethal Sampling Methods and Whale Research: An investigation of publication data and scientific values
Creators: name: Williams, Joe M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2001
Subjects: Ethics Librarianship--International Aspects
Periodicals--Marine Sciences
Publishers and publishing--Scientific and technical literature

description: Since the early 1980's an international debate has developed concerning the feasibility, necessity and ethics of whaling practices. There are two opposing perspectives in this debate. The "anti-whaling" perspective, often attributed to the US and UK, suggests that all whale populations should be fully protected from killing for commercial and research purposes. The "pro-whaling" prospective, often attributed to Japan, Norway and Iceland, suggests that some whale populations are abundant and can be killed for commercial and research purposes. This study explores the relationships between these dominant perspectives in published research on whales to investigate how these values may impact scientific research. 1991-2001 publication data from five marine biology research journals were analyzed for their frequency and likelihood to publish lethal and non-lethal sampling methods in whale research. A major finding is that pro-whaling countries published significantly more studies that employed dead specimens, while anti-whaling countries published more studies that employed living specimens. These results suggest that scientists' cultural values influence the scientific process.
The continuous transition of Hamiltonian vector fields through manifolds of constant curvature
Creators: name: Diacu, Florin
name: Ibrahim, Slim
name: Sniatycki, Jedrzej
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We ask whether Hamiltonian vector fields defined on spaces of constant Gaussian curvature $κ$ (spheres, for $κ>0$, and hyperbolic spheres, for $κ<0$), pass continuously through the value $κ=0$ if the potential functions $U_κ, κ\in\mathbb R$, that define them satisfy the property $\lim_{κ\to 0}U_κ=U_0$, where $U_0$ corresponds to the Euclidean case. We prove that the answer to this question is positive, both in the 2- and 3-dimensional cases, which are of physical interest, and then apply our conclusions to the gravitational $N$-body problem.
description: 12 pages
Results of a Survey to Determine Compliance of North Carolina Community College Library Instruction Programs with ACRL Guidelines
Creators: name: Midgley, William
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Community college libraries--North Carolina
Library surveys
Information services--User education

description: Numerous case studies describing individual community college libraries' instruction programs have been published, but there have been few attempts to identify common characteristics of these programs. This study describes the results of a survey in which documentation from the instruction programs of 15 North Carolina community college libraries was analyzed against program design guidelines from the ACRL's "Guidelines for Instruction Programs in Academic Libraries" document. The study found no correlation between variables describing the parent institutions of these libraries and the degree to which the libraries' instructional programming appeared to adhere to the ACRL guidelines; however, given the educational importance of community colleges to a very large and diverse student body with a variety of information needs, further research in this area is recommended. This study suggests that such research should avoid a methodology in which internal documentation is chosen to represent instruction programs.
MS Gr. class. c. 4 866
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 32. Philodemus, De morte 4
Drawing by Carlo Orazi
Serious Mental Illness, Public Libraries, and the Role of Homelessness: Understanding Public Librarians' Interests
Creators: name: Pressley, Tara
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016
Subjects: Public libraries--Services to homosexuals
Public libraries
Health--Information services

description: The purpose of this study was to demonstrate the perceptions that public librarians
have of their user populations with regard to people who are experiencing serious
mental illness and the relationship to homelessness. Library association email
listservs from multiple states across the U.S. distributed a questionnaire to their
members that addressed these topics. The results found that a large number of
public librarians experience concerns about violence in these populations and the
impact that the presence of such users upon other users. Public librarians would be
interested in learning more about serious mental illness with the goal that
awareness about serious mental illness would help them in their interaction with
library users who are experiencing serious mental illness. They expressed openness
to trainings about serious mental illness. Such trainings would include liaisons with
community agencies that work to help who are experiencing serious mental illness.
Going Deeper Into the Blogs of War: A Study of Military Blog Content and Gratifications
Creators: name: Gallin, Alexandra C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Military literature--Bibliography
Weblogs
Social networks

description: While researchers and the popular press have been interested in understanding the blogs and blogging behaviors of the civilian public, curiously scant empirical studies of military blogs ("milblogs") and milbloggers exist. Using a "uses and gratifications" approach, common in communication and media studies, this paper reports on a qualitative analysis of milblog content and milbloggers' motivations for blogging their experiences while deployed in Iraq and Afghanistan. The study used a convenience sample of 12 publicly available milblogs, comprising 138 posts during Summer 2009. Analysis has been conducted through content analysis and iterative pattern coding. The majority of milblog content focused on loved ones at home and local translators. Blogging gratifications fell into six main categories. Research goals included filling a gap in the blogging literature, providing a descriptive benchmark of milblogs at a particular point in history, expanding the uses and gratifications framework, and exploring self-presentation amongst milbloggers.
Measuring Transit Signal Recovery in the Kepler Pipeline II: Detection Efficiency as Calculated in One Year of Data
Creators: name: Christiansen, Jessie L.
name: Clarke, Bruce D.
name: Burke, Christopher J.
name: Seader, Shawn
name: Jenkins, Jon M.
name: Twicken, Joseph D.
name: Smith, Jeffrey C.
name: Batalha, Natalie M.
name: Haas, Michael R.
name: Thompson, Susan E.
name: Campbell, Jennifer R.
name: Sabale, Anima
name: Uddin, Akm Kamal
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Kepler planet sample can only be used to reconstruct the underlying planet occurrence rate if the detection efficiency of the Kepler pipeline is known, here we present the results of a second experiment aimed at characterising this detection efficiency. We inject simulated transiting planet signals into the pixel data of ~10,000 targets, spanning one year of observations, and process the pixels as normal. We compare the set of detections made by the pipeline with the expectation from the set of simulated planets, and construct a sensitivity curve of signal recovery as a function of the signal-to-noise of the simulated transit signal train. The sensitivity curve does not meet the hypothetical maximum detection efficiency, however it is not as pessimistic as some of the published estimates of the detection efficiency. For the FGK stars in our sample, the sensitivity curve is well fit by a gamma function with the coefficients a = 4.35 and b = 1.05. We also find that the pipeline algorithms recover the depths and periods of the injected signals with very high fidelity, especially for periods longer than 10 days. We perform a simplified occurrence rate calculation using the measured detection efficiency compared to previous assumptions of the detection efficiency found in the literature to demonstrate the systematic error introduced into the resulting occurrence rates. The discrepancies in the calculated occurrence rates may go some way towards reconciling some of the inconsistencies found in the literature.
description: 13 pages, 7 figures, 1 electronic table, accepted by ApJ
Spontaneous reconnection at a separator current layer. II. Nature of the waves and flows
Creators: name: Stevenson, Julie E. H.
name: Parnell, Clare E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sudden destabilisations of the magnetic field, such as those caused by spontaneous reconnection, will produce waves and/or flows. Here, we investigate the nature of the plasma motions resulting from spontaneous reconnection at a 3D separator. In order to clearly see these perturbations, we start from a magnetohydrostatic equilibrium containing two oppositely-signed null points joined by a generic separator along which lies a twisted current layer. The nature of the magnetic reconnection initiated in this equilibrium as a result of an anomalous diffusivity is discussed in detail in \cite{Stevenson15_jgra}. The resulting sudden loss of force balance inevitably generates waves that propagate away from the diffusion region carrying the dissipated current. In their wake a twisting stagnation-flow, in planes perpendicular to the separator, feeds flux back into the original diffusion site (the separator) in order to try to regain equilibrium. This flow drives a phase of slow weak impulsive-bursty reconnection that follows on after the initial fast-reconnection phase.
How Undergraduates Seek Career Information
Creators: name: Hadburg, Michele P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: College students
Vocational guidance in libraries
Information needs
Vocation

description: The purpose of this study was to investigate undergraduate students' information seeking behaviors when searching for career information. No known current studies within the library and information science field address the career information seeking behaviors of college undergraduates, especially in the digital age. Qualitative interviews were conducted with ten junior and senior humanities majors and two university staff members who provide career guidance to humanities majors. Analysis of this study focused on students' information needs, information source preferences, the nature of the career information seeking process, and how an aspect of personality (extraversion) was related to source preferences. Results showed that participants utilized a core set of both human and information sources, although several of these sources received mixed reviews, as well as a long tail of many other sources. For undergraduates, the career information seeking process is not always satisfying and is highly unique and repetitious in nature.
การพัฒนาชุมชนตามหลักธรรมาธิปไตยของนักการเมืองท้องถิ่นในอำเภอโชคชัย จังหวัดนครราชสีมา
Creators: name: พระประเสริฐ ปญฺญาวโร
Publisher: name: มหาวิทยาลัยมหาจุฬาลงกรณราชวิทยาลัย วิทยาเขตนครสวรรค์
Year: 2023
Subjects: การพัฒนาชุมชน
หลักธรรมาธิปไตย
นักการเมืองท้องถิ่น

description: The Journal of Research and Academics, 1, 4, R0864
MS Gr. class. c. 4 867
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1050 col. 33. Philodemus, De morte 4
Drawing by Carlo Orazi
The k-NN algorithm for compositional data: a revised approach with and without zero values present
Creators: name: Tsagris, Michail
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62H30

description: In compositional data, an observation is a vector with non-negative components which sum to a constant, typically 1. Data of this type arise in many areas, such as geology, archaeology, biology, economics and political science among others. The goal of this paper is to extend the taxicab metric and a newly suggested metric for compositional data by employing a power transformation. Both metrics are to be used in the k-nearest neighbours algorithm regardless of the presence of zeros. Examples with real data are exhibited.
description: This manuscript will appear at the. http://www.jds-online.com/volume-12-number-3-july-2014
คุณลักษณะผู้นำทางการเมืองตามแนวพระพุทธศาสนาของผู้บริหารเทศบาลตำบลเมืองคง อำเภอคง จังหวัดนครราชสีมาคุณลักษณะผู้นำทางการเมืองตามแนวพระพุทธศาสนาของผู้บริหารเทศบาลตำบลเมืองคง อำเภอคง จังหวัดนครราชสีมา
Creators: name: พระปิติพงษ์ ธมฺปาโล
Publisher: name: มหาวิทยาลัยมหาจุฬาลงกรณราชวิทยาลัย วิทยาเขตนครสวรรค์
Year: 2023
Subjects: คุณลักษณะผู้นำทางการเมือง
พระพุทธศาสนา
ผู้บริหารเทศบาล

description: The Journal of Research and Academics, 1, 4, R0867
Funding Tomorrow's Stories: Creating a Grant Proposal for a New Nonprofit
Creators: name: Richardson, Sylvia B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Libraries--Finance
Digital divide
Social networks
Nonprofit organizations
North Carolina

description: Digital Storymakers is a new nonprofit founded by SILS students. Its mission is to teach digital media literacy through the creation of a community-owned cultural repository. This will take the form of an innovative, locally-driven social networking site that will help people create their online "stories," collections of digital media. It will focus on local histories from Orange County. In order to fund the initial development, Digital Storymakers chose to apply for a National Endowment for the Humanities Digital Start-Up Grant and a MacArthur Foundation Digital Media & Learning Grant. The purpose of my Master's Project was to gain firsthand experience in fundraising by preparing a grant proposal for Digital Storymakers. This paper provides background information about the project and documents the process of creating the grant proposal.
Continuum-Mediated Dark Matter-Baryon Scattering
Creators: name: Katz, Andrey
name: Reece, Matthew
name: Sajjad, Aqil
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Many models of dark matter scattering with baryons may be treated either as a simple contact interaction or as the exchange of a light mediator particle. We study an alternative, in which a continuum of light mediator states may be exchanged. This could arise, for instance, from coupling to a sector which is approximately conformal at the relevant momentum transfer scale. In the non-relativistic effective theory of dark matter-baryon scattering, which is useful for parametrizing direct detection signals, the effect of such continuum mediators is to multiply the amplitude by a function of the momentum transfer q, which in the simplest case is just a power law. We develop the basic framework and study two examples: the case where the mediator is a scalar operator coupling to the Higgs portal (which turns out to be highly constrained) and the case of an antisymmetric tensor operator ${\cal O}_{μν}$ that mixes with the hypercharge field strength and couples to dark matter tensor currents, which has an interesting viable parameter space. We describe the effect of such mediators on the cross sections and recoil energy spectra that could be observed in direct detection.
description: 30 pages, 6 figures. v2: minor changes, references added