cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reappearance of Kondo Effect in Serially Coupled Symmetric Triple Quantum Dots
Creators: name: Cheng, YongXi
name: Wei, JianHua
name: Yan, YiJing
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the spectral properties of serially coupled triple quantum dot (TQD) system by means of the hierarchical equations of motion (HEOM) approach. We find that with the increase of the interdot coupling t, the first Kondo screening is followed by another Kondo effect reappearing due to the transition from the respective Kondo singlet state of individual QD to the coherence bonding state generated among the three QDs. The reappearance of Kondo effect results in the three-peak structure of the spectral functions of peripheral QD-1(3). By investigating the susceptibility \c{hi}, we find that the local susceptibility of intermediate QD-2 is a positive value at weak interdot coupling, while it changes into negative value at strong interdot coupling, at which the TQD system gives rise to the reappearance of Kondo effect. We also find the slopes of 1/\c{hi} will deviate from straight line behaviour at low temperature in the reappearing Kondo regime. In addition, the influence of temperature T and dot-lead coupling strength Δ on the reappearing Kondo effect as well as the Kondo-correlated transport properties are afterwards exploited in detail.
description: 8 pages, 4 figures
Nonexpansive directions in the Jeandel-Rao Wang shift
Creators: name: Labbé, Sébastien
name: Mann, Casey
name: McLoud-Mann, Jennifer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B51 (Primary) 37B10, 52C23 (Secondary)

description: We show that $\{0,φ+3,-3φ+2,-φ+\frac{5}{2}\}$ is the set of slopes of nonexpansive directions for a minimal subshift in the Jeandel-Rao Wang shift, where $φ=(1+\sqrt{5})/2$ is the golden mean. This set is a topological invariant allowing to distinguish the Jeandel-Rao Wang shift from other subshifts. Moreover, we describe the combinatorial structure of the two resolutions of the Conway worms along the nonexpansive directions in terms of irrational rotations of the unit interval. The introduction finishes with pictures of nonperiodic Wang tilings corresponding to what Conway called the cartwheel tiling in the context of Penrose tilings. The article concludes with open questions regarding the description of octopods and essential holes in the Jeandel-Rao Wang shift.
description: v1: 24 pages, 19 figures; v2: 30 pages, 23 figures, new section with open questions on octopods and essential holes; v3: small fixes
An Analysis of the Holdings of Selected W.B. Yeats First Editions through the Collected Works of 1908 in the Rare Book Collection at the University of North Carolina at Chapel Hill
Creators: name: Wells, Christine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Rare books--Bibliography
Special collections--Collection development

description: This paper provides a detailed analysis of the holdings of W.B. Yeats first editions through the Collected Works of 1908 in the Rare Book Collection at the University of North Carolina.  In this paper I will first offer a literary and biographical context for this remarkable collection.   The central section of this paper provides a detailed descriptive bibliography of the first editions through 1908 currently held by the Rare Book Collection.  I will include the following information: title, publication, pagination, illustrations, provenance, binding, and other notes as needed.  In the concluding section, I will offer an analysis of the RBC holdings and suggest titles for future acquisition.
Behavioral modeling of stressed MOSFET
Creators: name: Gniazdowski, Zenon
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this paper piezoconductivity phenomenon in MOSFET channel is discussed and extension of drain current model with possibility of stress consideration is proposed. Analysis of obtained model combined with examination of stress components inherent in the MOSFET channel as well as distributions of specific piezoconductance coefficients on a plane of channel can show which directions of transistor channel are desirable for improvement of MOSFET performances. This model gives possibility to predict optimal transistor channel orientation, for the given stress state in MOSFET channel. Possible simplification of this model is considered. In particular, stress state and significant piezoconductance coefficient distributions on planes {100}, {110} as well as {111} are analyzed. For assumed particular cases of stress state in the channel, final models of MOSFT for considered specific planes are given.
description: 24 pages, 16 figures
MS Gr. class. c. 2 256
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 207 col. 117. Philodemus, De poematis 4
Drawing by Carlo Orazi
Ground state bistability of cold atoms in a cavity
Creators: name: Gábor, B.
name: Nagy, D.
name: Dombi, A.
name: Clark, T. W.
name: Williams, F. I. B.
name: Adwaith, K. V.
name: Vukics, A.
name: Domokos, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally demonstrate an optical bistability between two hyperfine atomic ground states, using a single mode of an optical resonator in the collective strong coupling regime. Whereas in the familiar case, the bistable region is created through atomic saturation, we report an effect between states of high quantum purity, which is essential for future information storage. The nonlinearity of the transitions arise from cavity-assisted pumping between ground states of cold, trapped atoms and the stability depends on the intensity of two driving lasers. We interpret the phenomenon in terms of the recent paradigm of first-order, driven-dissipative phase transitions, where the transmitted and driving fields are understood as the order and control parameters, respectively. The saturation-induced bistability is recovered for infinite drive in one of the controls. The order of the transition is confirmed experimentally by hysteresis in the order parameter when either of the two control parameters is swept repeatedly across the bistability region and the underlying phase diagram is predicted in line with semiclassical mean-field theory.
Analysis of U.S. RDA Text Record Use Surveys
Creators: name: Sinclair, Jill M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Anglo-American cataloguing rules
Resource Description and Access
Cataloging--Rules

description: In order to plan for the future of our libraries, it is important to have some foresight into the user experience as well as the operational changes expected to affect librarians. Training library staff on the new RDA guidelines will take time, and those with previous exposure to its conceptual differences from AACR2 may find the adaptation to be smoother. This paper examines the reactions of library users and professional catalogers to bibliographic test records created in accordance with RDA, and it identifies the positive and negative changes they expect it will bring to the catalog. Content analysis identifies the most frequently mentioned concerns expressed by participants in the RDA Test Record Use Survey and provides insight into how catalogers expect user experience be improved by RDA, if at all.
Decoherence by Optical Phonons in GaN Defect Single-Photon Emitters
Creators: name: Geng, Yifei
name: Luo, Jialun
name: van Deurzen, Len
name: Huili
name: Xing
name: Jena, Debdeep
name: Fuchs, Gregory David
name: Rana, Farhan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In most single-photon defect emitters, such as those in SiC and diamond, interaction with low-energy acoustic phonons determines the temperature dependence of the decoherence rate and the resulting broadening of the ZPL with the temperature obeys a power law. GaN hosts bright and stable single-photon emitters in the 600 nm to 700 nm wavelength range with strong ZPLs even at room temperature. In this work, we study the temperature dependence of the ZPL spectra of GaN SPEs integrated with solid immersion lenses with the goal of understanding the relevant decoherence mechanisms. At temperatures below ~50 K, the ZPL lineshape is found to be Gaussian and the ZPL linewidth is temperature independent and dominated by spectral diffusion. Above ~50 K, the linewidth increases monotonically with the temperature and the lineshape evolves into a Lorentzian. Quite remarkably, the temperature dependence of the linewidth does not follow a power law. We propose a model in which decoherence caused by absorption/emission of optical phonons in an elastic Raman process determines the temperature dependence of the lineshape and the linewidth. Our model explains the temperature dependence of the ZPL linewidth and lineshape in the entire 10 K to 270 K temperature range explored in this work. The ~19 meV optical phonon energy extracted by fitting the model to the data matches remarkably well the ~18 meV zone center energy of the lowest optical phonon band (E2(low)) in GaN. Our work sheds light on the mechanisms responsible for linewidth broadening in GaN SPEs. Since a low energy optical phonon band (E2(low)) is a feature of most group III-V nitrides with a wurtzite crystal structure, including hBN and AlN, we expect our proposed mechanism to play an important role in defect emitters in these materials as well.
description: 11 pages, 7 figures
MS Gr. class. c. 2 257
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 207 col. 118. Philodemus, De poematis 4
Drawing by Carlo Orazi
MassToMI - a Mathematica package for an automatic Mass Insertion expansion
Creators: name: Rosiek, Janusz
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a Mathematica package designed to automatize the expansion of QFT transition amplitudes calculated in the mass eigenstates basis (i.e. expressed in terms of physical masses and mixing matrices) into series of "mass insertions", defined as off-diagonal entries of mass matrices in Lagrangian before diagonalization and identification of the physical states. The algorithm implemented in this package is based on the general "Flavor Expansion Theorem" proven in Ref.~\cite{FET}. The supplied routines are able to automatically analyze the structure of the amplitude, identify the parts which could be expanded and expand them to any required order. They are capable of dealing with amplitudes depending on both scalar or vector (Hermitian) and Dirac or Majorana fermion (complex) mass matrices. The package can be downloaded from the address www.fuw.edu.pl/masstomi.
description: 27 pages, version accepted for publication in Computer Physics Communications (additional examples added). The Mathematica code including the package and examples of its use can be downloaded from http://www.fuw.edu.pl/masstomi
Spontaneous Formation of Exceptional Points at the Onset of Magnetism
Creators: name: Crippa, Lorenzo
name: Sangiovanni, Giorgio
name: Budich, Jan Carl
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We reveal how symmetry protected nodal points in topological semimetals may be promoted to pairs of generically stable exceptional points (EPs) by symmetry-breaking fluctuations at the onset of long-range order. This novel route to non-Hermitian (NH) topology is exemplified by a magnetic NH Weyl phase spontaneously emerging at the surface of a strongly correlated three-dimensional topological insulator when entering the ferromagnetic regime from a high temperature paramagnetic phase. Here, electronic excitations with opposite spin acquire significantly different life-times, thus giving rise to an anti-Hermitian structure in spin that is incompatible with the chiral spin texture of the nodal surface states, and hence facilitates the spontaneous formation of EPs. We present numerical evidence of this phenomenon by solving a microscopic multi-band Hubbard model non-perturbatively in the framework of dynamical mean-field theory.
description: 6 pages, 4 figures
Low energy Greybody factors for fermions emitted by a Schwarzschild-de Sitter black hole
Creators: name: Sporea, Ciprian A.
name: Borowiec, Andrzej
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we are discussing the problem of low-energy greybody factors for fermions emitted by a Schwarzschild-de Sitter black hole. In our study we are using the analytical methods proposed by Unruh some time ago for determining the greybody factors. We have found that at low energies the greybody factors are constant for a given total angular momentum (similar to what happens in the case of scalar particles reported before in the literature). Also our results are indicating an enhancement in the energy spectrum if one is increasing the value of the cosmological constant. These results are consistent with numerical calculations performed in Ref.[14] by S.F. Wu et al. (Phys.Rev.D 78, 084010).
description: Several comments added, 4 figures, 1 table. Version to appear in Int.J.Mod.Phys.D
Measles on Main Street, USA: How Public Health Events Affect Public Library Policy
Creators: name: Dixon, Jessica
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016
Subjects: Libraries & community health
Public libraries
Library rules & policies

description: This study describes a questionnaire survey of library directors, county librarians, and city librarians representing eighty-three of California's one-hundred and seventy-nine total public library districts. The study was conducted to determine the effects, if any, of the 2015 Disneyland measles outbreak and California Senate Bill Number 277 on public library policy in California.
One library district changed an existing policy following the Disneyland outbreak, and another district changed an existing policy in response to the Senate Bill. No library districts added, eliminated, plan to change, plan to add, or plan to eliminate policies owing to either event. Three districts anticipate that these events will likely impact policies in the future. Although the events have yet to elicit many policy changes, public libraries should consider implementing such policies to strengthen the health of the communities they serve before governing bodies place pressure on them to do so.
Tridendriform structures
Creators: name: Catoire, Pierre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We first study tensor products of tridendriform algebras in order to introduce the notion of tridendriform bialgebra. We shall need for this a notion of augmented tridendriform algebras. Inspired by the work of J-L. Loday and M. Ronco, we build free tridendriform algebras over reduced trees and show that they have a coproduct satisfying some compatibilities with the tridendriform products. Such an object will be called a (3, 1)--dendriform algebra. Studying the free (3, 1)--dendriform bialgebra over one generator, we describe its products and coproduct in a combinatorial way. The products are described by branches shuffle and the coproduct by admissible cuts. We compare it with quasi-shuffle algebras over words. Its graded dual is the bialgebra TSym introduced by N. Bergeron and al which is described by the lightening splitting of a tree. As a consequence, this shows that TSym has a (1, 3)--dendriform bialgebra structure. This means that its coproduct can be split in three parts with convenient compatibilities. This can be extended to (3, 1)-bialgebras over an arbitrary number of generators. Finally, we introduce the notion of (3, 2)--dendriform bialgebra. This is a Hopf algebra, where we can split the product in three pieces and the coproduct in two with Hopf compatibilities. We give an example of such an algebra built on the free (3, 1)-dendriform bialgebra with one generator. We describe and generate its codendriform primitives and count its coassociative primitives thanks to L. Foissy's work. We end this paper by showing that a quotient of this (3, 2)-dendriform bialgebra is the Loday-Ronco bialgebra.
Monotes glandulosus Pierre (1897: 1299
Creators: name: Meerts, Pierre
name: Rougelot, Quentin
name: Sosef, Marc
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Dipterocarpaceae
Monotes
Monotes glandulosus

description: 16. Monotes glandulosus Pierre (1897: 1299)
 Type: — ANGOLA (?). Sine loco, sine dato (holo-: P! [barcode P054013988]; iso-: BRLU! (fragm.); photo: BM!, K!).
  Discussion: —  Monotes glandulosus Pierre is an enigmatic taxon known from the type specimen only, probably from Angola. Bancroft (1939a) interpreted it as very closely related to M. delevoyi. Duvigneaud (1949) argued that it was almost similar to M. mutetetwa. The type specimen has oblong leaves with irregular margin, glabrous areoles, reticulum with curled hairs and upper surface with remains of short stiff hairs (ca. 0.25 mm long). Such a phenotype combines traits of M. dasyanthus var. mutetetwa and M. adenophyllus var. adenophyllus and a hybrid origin is possible. Some collections from D.R. Congo approach the type of M. glandulosus, especially Callens 3034 (BM!, BR!), Duvigneaud 2530M2 (BRLU!); Duvigneaud 3071 (BRLU!).
 References:— Bancroft (1937: 138; 1939a: 341); Catarino et al. (2013: 272); Duvigneaud (1949: 60); Figueiredo & Smith (2008: 67); Gilg (1908b: 291); Lebrun & Stork (1991: 144).
description: Published as part of Meerts, Pierre, Rougelot, Quentin & Sosef, Marc, 2017, Revision of the genus Monotes (Dipterocarpaceae) in D. R. Congo, with implications for Angola and its distinction from Marquesia, pp. 151-205 in Phytotaxa 308 (2) on page 196, DOI: 10.11646/phytotaxa.308.2.1, http://zenodo.org/record/13701270
Entanglement Generation via Non-Gaussian Transfer over Atmospheric Fading Channels
Creators: name: Hosseinidehaj, Nedasadat
name: Malaney, Robert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we probe the usefulness of non-Gaussian entangled states as a resource for quantum communication through atmospheric channels. We outline the initial conditions in which non-Gaussian state transfer leads to enhanced entanglement transfer relative to that obtainable via Gaussian state transfer. However, we conclude that in (anticipated) operational scenarios - where most of the non-Gaussian states to be transferred over the air are created just-in-time via photonic subtraction, addition or replacement from incoming Gaussian states - the entanglement-generation rate between stations via non-Gaussian state transfer will be substantially less than that created by direct Gaussian state transfer. The role of post-selection, distillation and quantum memory in altering this conclusion is discussed, and comparison with entanglement rates produced via single-photon technologies is provided. Our results suggest that in the near term entangled Gaussian states, squeezed beyond some modest level, offer the most attractive proposition for the distribution of entanglement through high-loss atmospheric channels. The implications of our results for entanglement-based QKD to low-earth orbit are presented.
description: 12 pages, 8 figures
MS Gr. class. c. 2 258
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 207 col. 119. Philodemus, De poematis 4
Drawing by Carlo Orazi
North Carolina Public Library Staff Training Needs on Digital Resources
Creators: name: O'Connell, Brendan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012
Subjects: Employees--Training of
Electronic information resources--Use studies
Public librarians--North Carolina

description: All public libraries in North Carolina currently provide digital library resources to their patrons through NC LIVE, a statewide consortium that offers eBooks, audiobooks, journal articles, and other electronic resources. Librarians remain the crucial link between resources and public users, but many librarians experience difficulty using NC LIVE. Through the use of a survey and semi-structured interviews, this study assesses current usage of and training needs for NC LIVE resources by North Carolina Public librarians and staff. Results indicate a wide spectrum of usage rates and training needs on digital resources by librarians. A discussion of the results, including recommendations for creating training materials, is included in this paper.
The strongest cool core in REXCESS: Missing X-ray cavities in RXC J2014.8-2430
Creators: name: Mroczkowski, Tony
name: Donahue, Megan
name: van Marrewijk, Joshiwa
name: Clarke, Tracy E.
name: Hoffer, Aaron
name: Intema, Huib
name: Di Mascolo, Luca
name: Popping, Gergö
name: Pratt, Gabriel W.
name: Sun, Ming
name: Voit, Mark
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a multiwavelength study of RXC J2014.8-2430, the most extreme cool-core cluster in the Representative $XMM-Newton$ Cluster Structure Survey (REXCESS), using $Chandra$ X-ray, Southern Astrophysical Research (SOAR) Telescope, Atacama Large Millimeter/submillimeter Array (ALMA), Very Large Array (VLA), and Giant Metrewave Radio Telescope (GMRT) observations. While feedback from an active galactic nucleus (AGN) is thought to be the dominant mechanism by which a cooling flow is suppressed, the $Chandra$ imaging observations surprisingly do not reveal the bi-lateral X-ray cavities expected in the intracluster medium (ICM) of an extreme cool core hosting a powerful radio source. We discuss the limits on the presence of any radio bubbles associated with any undetected X-ray cavities. We place upper limits on any significant X-ray AGN in the brightest cluster galaxy, and show that the X-ray peak is offset from the central radio source, which exhibits a steep low frequency radio spectrum indicative of electron ageing. The SOAR data reveal an extended, luminous emission line source. From our narrowband H$α$ imaging of the BCG, the central H$α$ peak is coincident with the radio observations, yet offset from the X-ray peak, consistent with sloshing found previously in this cluster. ALMA observations reveal a large reservoir of molecular gas that traces the extended H$α$ emission. We conclude either that the radio source and its cavities in the X-ray gas are nearly aligned along the line of sight, or that ram pressure induced by sloshing has significantly displaced the cool molecular gas feeding it, perhaps preempting the AGN feedback cycle. We argue that the sloshing near the core is likely subsonic, as expected, given the co-location of the H$α$, CO(1-0), radio continuum, and stellar emission peaks and their proximity to the intact cool core seen in X-ray.
description: 20 pages (including the appendix), 15 figures. A&A accepted on 18 July 2022
MORPHOLOGICAL CHANGES IN THE NEPHRON SYSTEM AND RENAL CORTEX OF OFFSPRING OBTAINED WITH STREPTOZOTOCIN DIABETES MELLITUS (90TH DAY)
Creators: name: Tilyabov, Ikrom
name: Khalilov, Khikmatulla
Publisher: name: Zenodo
Year: 2025

description: A number of scientific studies are being conducted worldwide to assess the morphological changes in the renal cortex of offspring taken under conditions of streptozotocin diabetes. In this regard, the morphological structure of the kidneys in different periods of postnatal ontogenesis, morphological changes in the cortical part of the kidneys of offspring born from female rats with experimental diabetes, histochemical assessment of the renal cortex of offspring born from female rats with experimental diabetes, as well as the development of an algorithm for developing the mechanism of kidney damage in offspring born from female rats with experimental diabetes have been studied. works separately. In our country, certain measures are being implemented aimed at developing the medical sphere, adapting the medical system to the requirements of world standards, including early diagnosis, treatment and prevention of complications of somatic diseases. In this regard, in accordance with the seven priorities of the New Uzbekistan development strategy for 2022-2026, in raising the level of health care for the population to a new level, such tasks as improving the quality of qualified services to the population in the primary health care service have been identified. Based on these tasks, it is desirable to conduct research on the morphometric assessment of morphological changes in the renal cortex of offspring taken under streptozotocin diabetes conditions.
Archiving Scientific Data: Needs and Challenges for Chemistry Researchers
Creators: name: Hopkins, Matthew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Chemistry--Information services
Research
Databases

description: Scientific data preservation is an ongoing challenge for the information sciences. This study focuses on one subgroup, chemistry. Our goal is to elicit data practices and opinions on sharing data from chemistry researchers at the institution of UNC-Chapel Hill to inform the development of an IR. To achieve this goal, we conducted a survey of faculty and students. Findings from the 31 participants (a response rate of 10.3%) revealed that chemists use data repositories infrequently. Participants were most comfortable sharing data with students, followed by collaborators and researchers in their own discipline. The researchers surveyed did not express interest in an institutional repository, although certain sub-groups - data repository users, researchers comfortable sharing data, and biological chemists - showed more interest. Of researchers that used data repositories, most had done so through the journal publishing process, which could provide an alternative way to preserve research data in chemistry.
The Concept of Decentralization Through Time and Disciplines: A Quantitative Exploration
Creators: name: Di Bona, Gabriele
name: Bracci, Alberto
name: Perra, Nicola
name: Latora, Vito
name: Baronchelli, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computers and Society (cs.CY)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Decentralization is a pervasive concept found across disciplines, including Economics, Political Science, and Computer Science, where it is used in distinct yet interrelated ways. Here, we develop and publicly release a general pipeline to investigate the scholarly history of the term, analysing 425,144 academic publications that refer to (de)centralization. We find that the fraction of papers on the topic has been exponentially increasing since the 1950s. In 2021, 1 author in 154 mentioned (de)centralization in the title or abstract of an article. Using both semantic information and citation patterns, we cluster papers in fields and characterize the knowledge flows between them. Our analysis reveals that the topic has independently emerged in the different fields, with small cross-disciplinary contamination. Moreover, we show how Blockchain has become the most influential field about 10 years ago, while Governance dominated before the 1990s. In summary, our findings provide a quantitative assessment of the evolution of a key yet elusive concept, which has undergone cycles of rise and fall within different fields. Our pipeline offers a powerful tool to analyze the evolution of any scholarly term in the academic literature, providing insights into the interplay between collective and independent discoveries in science.
description: 19 pages, 4 figures, and Supplemental Information
MS Gr. class. c. 2 259
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 207 col. 120. Philodemus, De poematis 4
Drawing by Carlo Orazi
BFORE: The B-mode Foreground Experiment
Creators: name: Niemack, Michael D.
name: Ade, Peter
name: de Bernardis, Francesco
name: Boulanger, Francois
name: Bryan, Sean
name: Devlin, Mark
name: Dunkley, Joanna
name: Eales, Steve
name: Gomez, Haley
name: Groppi, Chris
name: Henderson, Shawn
name: Hillbrand, Seth
name: Hubmayr, Johannes
name: Mauskopf, Philip
name: McMahon, Jeff
name: Miville-Deschênes, Marc-Antoine
name: Pascale, Enzo
name: Pisano, Giampaolo
name: Novak, Giles
name: Scott, Douglas
name: Soler, Juan
name: Tucker, Carole
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The B-mode Foreground Experiment (BFORE) is a proposed NASA balloon project designed to make optimal use of the sub-orbital platform by concentrating on three dust foreground bands (270, 350, and 600 GHz) that complement ground-based cosmic microwave background (CMB) programs. BFORE will survey ~1/4 of the sky with 1.7 - 3.7 arcminute resolution, enabling precise characterization of the Galactic dust that now limits constraints on inflation from CMB B-mode polarization measurements. In addition, BFORE's combination of frequency coverage, large survey area, and angular resolution enables science far beyond the critical goal of measuring foregrounds. BFORE will constrain the velocities of thousands of galaxy clusters, provide a new window on the cosmic infrared background, and probe magnetic fields in the interstellar medium. We review the BFORE science case, timeline, and instrument design, which is based on a compact off-axis telescope coupled to >10,000 superconducting detectors.
description: 7 pages, 4 figures, conference proceedings published in Journal of Low Temperature Physics
MS Gr. class. c. 2 260
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 207 subscriptio. Philodemus, De poematis 4
Drawing by Carlo Orazi
The Undergraduate Citation Experience: Plagiarism's Lens
Creators: name: Dzuba, Tyler A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: College and university libraries--Services to undergraduate students
Plagiarism
Bibliographical citations

description: As a central practice in scholarship, citation is an important skill to be acquired by undergraduate students. However, scholars display vast disagreement on the ways in which this skills should be taught. Most frequently, citation is approached from the perspective of plagiarism. This critical review examines the core literature surrounding the undergraduate experience of citation and plagiarism. Pedagogies of citation and plagiarism are described, along with the literature on citation mechanics, strategies for defining and dealing with plagiarism, and changes called for in how the academy understands plagiarism. Relevant learning theory concepts are also explored. The review concludes with a discussion of potential implications and topic areas for future research.
A braneworld model in a massive gravity
Creators: name: Yang, Ke
name: Guo, Shi-Fa
name: Gu, Bao-Min
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A Randall-Sundrum-like braneworld scenario is constructed in a 5D extension of the Lorentz-violating massive gravity. The gauge hierarchy problem is solved in current model. The linear perturbations are calculated, and it is found that the tensor and vector perturbations are robust and free from the ghost and tachyonic instabilities, however, the scalar perturbation is a ghost filed. After Kaluza-Klein reduction, all the tensor, vector and scalar modes are massive and possess the mass splitting of order of TeV in their respective mass spectra. The massive ground states of tensor and scalar modes propagate only along the brane, however, the vector ground state is absent in the mass spectrum. By introducing the Goldberger-Wise mechanism to stabilize the extra dimension, the 4D effective theory on the brane includes a nearly massless graviton plus three towers of very massive spin-2, spin-1 and ghost spin-0 particles.
description: 24 pages, 2 figures, with some errors corrected
Tectaria austrosinensis C. Christensen 1934
Creators: name: Dong, Shi-Yong
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Tectariaceae
Tectaria
Tectaria austrosinensis

description: Tectaria austrosinensis (Christ) C. Christensen (1934: 177). Fig. 1.
 Basionym:— Dryopteris austrosinensis Christ (1907: 145).
 Type:— CHINA. Guizhou: Luodian (formerly Lo-fou), Nov 1905, Cavalerie 2637 (lectotype E-00417653!, isolectotypes BM-001048645!, P-00644787 [photo!]; designated here!).
 Note: —When Christ (1907: 145) originally described this species, he cited two collections, i.e. Cavalerie 2637 from “Ouest Lo-fou” and “Esq. s.i.l. ” from the same location. I have traced three sheets of Cavalerie 2637, each in a different herbarium (BM, E, and P), and two sheets of Esquirol’s collection (nos 759 & 3733) with “Type specimen” label at E. The sheet of Cavalerie 2637 at E (E-00417653) is relatively better than others and is selected here as the lectotype of T. austrosinensis.
 Tectaria austrosinensis is distinct in Tectaria by having linear-lanceolate basal pinnae, throughout scaly stipe, fully free venation (or occasionally with one basal veinlet connected), and exindusiate sori. Apart from these characters, the size of plant is also very helpful to distinguish most plants of T. austrosinensis from those of T. fuscipes. Tectaria austrosinensis is generally much larger than T. fuscipes, with the lateral pinnae mostly being 20–23 cm long in the former (e.g., Fig. 1) while 9–15 cm in the latter (Fig. 2). The main differences between T. fuscipes and T. austrosinensis in the size of pinnae and the shape of basal pinnae has also been pointed out by Christensen (1931: 290) when he transferred Aspidium fuscipes Wallich ex Beddome (1876: 15) to T. fuscipes.
 Additional specimens examined: — CHINA. Guizhou: without special locality, Cavalerie s.n. (P-01439960), Esquirol 2676 (PE). Yunnan: Maguan, Dong 3617 (IBSC); Hekou, Dong 3602 (IBSC). Guangxi: Huanjiang, Wei 2069 (IBK); Longzhou, Morse 70 (PE), Guangxi Exped. 1206 (PE), Su & Li 182 (IBK).
 VIETNAM. Bac Kan: Chao Don, Averyanov et al. HAL4718 (HNU); Na Ri, Averyanov et al. HAL5396 (HNU). Dien Bien: Tua Chua, Averyanov et al. CPC979 (HNU). Son La: Yen Chau, Harder et al. 7248 (HNU).
description: Published as part of Dong, Shi-Yong, 2017, Correction to the misapplication of the name Tectaria subsageniacea (Tectariaceae) in China, pp. 217-221 in Phytotaxa 313 (2) on page 218, DOI: 10.11646/phytotaxa.313.2.8, http://zenodo.org/record/13701364
Strange and nonstrange baryon spectra in the interacting quark-diquark model
Creators: name: Ferretti, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We briefly discuss the relativistic interacting quark-diquark model formalism and its application to the calculation of strange and nonstrange baryon spectra. The results are compared to the existing experimental data.
description: Talk presented at the NSTAR 2015 Conference, May 25-28 2015, Osaka (Japan)
Learning and growth processes facilitated in 9 to 12 year olds challenged with ADHD enrolled on a therapeutic horseback riding programme
Creators: name: Kreindler, Dalia
Publisher: name: University of Derby
Year: 2015
Subjects: ADHD
Therapeutic horse-back riding
Humanistic therapy

description: This study investigated the outcomes and practice of Therapeutic Horseback Riding (THR) for children aged 9 to 12 diagnosed with Attention Deficit with Hyperactivity Disorder (ADHD). The study was carried out in order to gain new insights in the learning and growth processes facilitated by Therapeutic Horseback Riding (THR) and to improve practice. Two learning and growth processes were identified and investigated: establishing a therapeutic vision and infusing it into the therapeutic plan and facilitating the transfer of newly learned or improved skills and learning strategies from the riding learning environment to parallel learning environments such as the client’s school and home. The research also explored ways to amplify levels of skill acquired during THR sessions and to support the transformation process experienced by THR clients. A pilot exploratory survey was conducted among THR practitioners and participating parents. In depth interviews and observations were conducted. A multiple case study paradigm was selected for the purpose of the study. In depth interviews were conducted with children diagnosed with ADHD, parents, and teachers. In addition, relevant documents were examined. A THR manual for practitioners was developed to support and inform learning partnerships between school (teachers), THR practitioners (THRPs) and children and their family, in order to standardise THR practice. The findings of this research showed that the THR practitioners (THRPs) should facilitate the acquisition and transfer of skills and strategies learned during THR sessions to other environments, such as family and school, in order to improve the quality of life of children diagnosed having ADHD. The Knowing Therapeutic Horseback Riding (KTR) model of THR practice emerged and was shown to be effective in promoting a learning and growth partnership between school, THR practitioner, client and his family. The KTR model calls for the nurturing of this partnership in order to support the learned skills and amplify them.
Nonlinear transport due to magnetic-field-induced flat bands in the nodal-line semimetal ZrTe5
Creators: name: Wang, Yongjian
name: Boemerich, Thomas
name: Park, Jinhong
name: Legg, Henry F.
name: Taskin, A. A.
name: Rosch, Achim
name: Ando, Yoichi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Dirac material ZrTe$_5$ at very low carrier density was recently found to be a nodal-line semimetal, where ultra-flat bands are expected to emerge in magnetic fields parallel to the nodal-line plane. Here we report that in very low carrier-density samples of ZrTe$_5$, when the current and the magnetic field are both along the crystallographic $a$ axis, the current-voltage characteristics presents a pronounced nonlinearity which tends to saturate in the ultra quantum limit. The magnetic-field dependence of the nonlinear coefficient is well explained by the Boltzmann theory for flat-band transport, and we argue that this nonlinear transport is likely due to the combined effect of flat bands and charge puddles, the latter appear due to very low carrier densities.
description: Final version to appear in PRL, 27 pages total; 6 pages of main text with 5 figures, 21 pages of supplemental information with 11 figures
Member Perceptions of the HBCU Library Alliance: A Case Study of Inter-Institutional Collaboration Models
Creators: name: Hollingsworth, Douglas C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008
Subjects: African American academic libraries
Library information networks--United States--Case studies
Library cooperation
Historically Black Colleges & Universitites
HBCU Library Alliance

description: The HBCU Library Alliance is examined as a case study for collaborative models in librarianship. A survey was conducted of HBCU library directors and staff to elicit the perceptions of the HBCU Library Alliance collaboration model. Respondents reinforced the important role that social capital and community building play in successful collaboration. Demographic and perception data are reported and suggestions for lessons learned from the HBCU Library Alliance experience are included.
Superintegrability, symmetry and point particle T-duality
Creators: name: Klimcik, Ctirad
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the ideas related to integrability and symmetry play an important role not only in the string T-duality story but also in its point particle counterpart. Applying those ideas, we find that the T-duality seems to be a more widespread phenomenon in the context of the point particle dynamics than it is in the string one; moreover, it concerns physically very relevant point particle dynamical systems and not just somewhat exotic ones fabricated for the purpose. As a source of T-duality examples, we consider maximally superintegrable spherically symmetric electro-gravitational backgrounds in $n$ dimensions. We then describe in detail four such spherically symmetric dynamical systems which are all mutually interconnected by a web of point particle T-dualities. In particular, the dynamics of a charged particle scattered by a repulsive Coulomb potential in a flat space is T-dual to the dynamics of the Coulomb scattering in the space of constant negative curvature, but it is also T-dual to the (conformal) Calogero-Moser inverse square dynamics both in flat and hyperbolic spaces. Thus knowing just the Hamiltonian dynamics of the scattered particle cannot give us an information about the curvature of the space in which the particle moves.
description: 21 pages
Suzaku observations of a shock front tracing the western edge of the giant radio halo in the Coma Cluster
Creators: name: Uchida, Y.
name: Simionescu, A.
name: Takahashi, T.
name: Werner, N.
name: Ichinohe, Y.
name: Allen, S. W.
name: Urban, O.
name: Matsushita, K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of new Suzaku observations of the Coma Cluster, the X-ray brightest, nearby, merging system hosting a well studied, typical giant radio halo. It has been previously shown that, on the western side of the cluster, the radio brightness shows a much steeper gradient compared to other azimuths. XMM-Newton and Planck revealed a shock front along the southern half of the region associated with this steep radio gradient, suggesting that the radio emission is enhanced by particle acceleration associated with the shock passage. Suzaku demonstrates for the first time that this shock front extends northwards, tracing the entire length of the western edge of the Coma radio halo. The shock is detected both in the temperature and X-ray surface brightness distributions and has a Mach number of around $\mathcal{M}\sim1.5$. The locations of the surface brightness edges align well with the edge of the radio emission, while the obtained temperature profiles seem to suggest shocks located 125-185 kpc further out in radius. In addition, the shock strengths derived from the temperature and density jumps are in agreement when using extraction regions parallel to the radio halo edge, but become inconsistent with each other when derived from radial profiles centred on the Coma Cluster core. It is likely that, beyond mere projection effects, the geometry of the shock is more complex than a front with a single, uniform Mach number and an approximately spherically symmetric shape.
description: accepted to PASJ
MS Gr. class. c. 2 262
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 208 Subscriptio. Colotes, In Platonis Lysin
Drawing by Giuseppe (?) Casanova
The Domestic Clutter Practices of Artists
Creators: name: Kallem, Mary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018
Subjects: Invisible work
Household organization
Artists
Domestic clutter

description: This study describes a series of interviews with artists regarding their organizational strategies for household clutter. The interviews were conducted to deepen an understanding of clutter’s role within domestic taxonomies, situating clutter not as a failure of homemaking but as a residual category integral to an individual’s sense of home.Five artists were interviewed about a self-selected area of clutter within their homes. Each participant practiced within a unique medium; participants included a zinemaker, fiction author, DJ, sculptor, and a musician. All five participants discussed clutter as sites of active labor and categorical negotiation, places where multiple aspects of their identities comingled to form ecologies unique to their senses of self.
Universal Scaling Bounds on a Quantum Heat Current
Creators: name: Kamimura, Shunsuke
name: Yoshida, Kyo
name: Tokura, Yasuhiro
name: Matsuzaki, Yuichiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive new bounds on a heat current flowing into a quantum $L$-particle system coupled with a Markovian environment. By assuming that a system Hamiltonian and a system-environment interaction Hamiltonian are extensive in $L$, we show that the absolute value of the heat current scales at most as $Θ(L^3)$ in a limit of large $L$. Also, we present an example that saturates this bound in terms of scaling: non-interacting particles globally coupled with a thermal bath. However, the construction of such system requires many-body interactions induced by the environment, which may be difficult to realize with the current technology. To consider more feasible cases, we focus on a class of system where any non-diagonal elements of the noise operator (derived from the system-environment interaction Hamiltonian) become zero in the system energy basis, if the energy difference is beyond a certain value $ΔE$. Then, for $ΔE = Θ(L^0)$, we derive another scaling bound $Θ(L^2)$ on the absolute value of the heat current, and the so-called superradiance belongs to a class to saturate this bound. Our results are useful to evaluate the best achievable performance of quantum-enhanced thermodynamic devices, which contain far-reaching applications for such as quantum heat engines, quantum refrigerators and quantum batteries.
description: 6+18 pages, 2+2 figures