cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Phase Stability and Properties of Manganese Oxide Polymorphs: Assessment and Insights from Diffusion Monte Carlo
Creators: name: Schiller, Joshua A.
name: Wagner, Lucas K.
name: Ertekin, Elif
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present an analysis of the polymorphic energy ordering and properties of the rock salt and zincblende structures of manganese oxide using fixed node diffusion Monte Carlo (DMC). Manganese oxide is a correlated, antiferromagnetic material that has proven to be challenging to model from first principles across a variety of approaches. Unlike conventional density functional theory and some hybrid functionals, fixed node diffusion Monte Carlo finds the rock salt structure to be more stable than the zincblende structure, and thus recovers the correct energy ordering. Analysis of the site-resolved charge fluctuations of the wave functions according to DMC and other electronic structure descriptions give insights into elements that are missing in other theories. While the calculated band gaps within DMC are in agreement with predictions that the zincblende polymorph has a lower band gap, the gaps themselves overestimate reported experimental values.
description: 9 pages, 8 figures
Editorial: Kindernachrichten
Creators: name: Dallmann, Christine
name: Vollbrecht, Ralf
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2015

description: Kinder sind neugierig auf die Welt. Und sie erfahren über diese Welt auch in den Medien, jedoch gibt es nur wenige Medienangebote mit kindgerechten Nachrichten. Dennoch bekommen Kinder Vieles mit: aus Gesprächen von Erwachsenen oder auch aus Nachrichtensendungen und Online-Angeboten, die nicht für Kinder gemacht und geeignet sind. So sind auch Berichterstattungen zu Kriegen, Natur- und sogenannten „humanitären“ Katastrophen sowie zu welt- und innenpolitischem Geschehen Bestandteil der alltäglichen Lebenswelt von Kindern. Diese gehen damit ganz unterschiedlich um. Sie reagieren auf Bedrohliches oder Unverständliches verunsichert, geängstigt oder auch interessiert – sie bleiben jedoch mit ihren Fragen und Ängsten oft allein, denn nicht immer stehen Erwachsene zur Verfügung. Vor diesem Hintergrund haben es sich Kindernachrichtensendungen zur Aufgabe gemacht, Nachrichten auf eine an den Bedürfnissen und Horizonten von Kindern orientierte Weise zu vermitteln. In dieser Ausgabe der Medienwelten analysieren Jessica Klinger und Antje Müller vergleichend die Kindernachrichtensendungen „Newsround“ und „logo!“ und sie stellen heraus, welche Qualitätskriterien mit der Orientierung an dieser Zielgruppe verbunden sein müssen.
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 5 (2015): Kindernachrichten
Supplementary Material for Faiß et al. “Tonality over a broad frequency range is linked to vocal learning in birds” Proceedings of the Royal Society B, 10.1098/rspb.[paper ID in form xxxx.xxxx e.g. 10.1098/rspb.2016.0049]
Creators: name: Faiß, Marius
name: Riede, Tobias
name: Goller, Franz
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: File containing supplementary Tables listing passerine and hummingbird species and statistical results
Trapezoidal numbers, divisor functions, and a partition theorem of Sylvester
Creators: name: Nathanson, Melvyn B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A17, 11P81, 11A05, 11B75

description: A partition of a positive integer $n$ is a representation of $n$ as a sum of a finite number of positive integers (called parts). A trapezoidal number is a positive integer that has a partition whose parts are a decreasing sequence of consecutive integers, or, more generally, whose parts form a finite arithmetic progression. This paper reviews the relation between trapezoidal numbers, partitions, and the set of divisors of a positive integer. There is also a complete proof of a theorem of Sylvester that produces a stratification of the partitions of an integer into odd parts and partitions into disjoint trapezoids.
description: 26 pages
Towards a systematic assessment of errors in diffusion Monte Carlo calculations of semiconductors: case study of zinc selenide and zinc oxide
Creators: name: Yu, Jaehyung
name: Wagner, Lucas K.
name: Ertekin, Elif
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The fixed node diffusion Monte Carlo (DMC) method has attracted interest in recent years as a way to calculate properties of solid materials with high accuracy. However, the framework for the calculation of properties such as total energies, atomization energies, and excited state energies is not yet fully established. Several outstanding questions remain as to the effect of pseudopotentials, the magnitude of the fixed node error, and the size of supercell finite size effects. Here, we consider in detail the semiconductors ZnSe and ZnO and carry out systematic studies to assess the magnitude of the energy differences arising from controlled and uncontrolled approximations in DMC. The former include time step errors and supercell finite size effects for ground and optically excited states, and the latter include pseudopotentials, the pseudopotential localization approximation, and the fixed node approximation. We find that for these compounds, the errors can be controlled to good precision using modern computational resources, and that quantum Monte Carlo calculations using Dirac-Fock pseudopotentials can offer good estimates of both cohesive energy and the gap of these systems. We do however observe differences in calculated optical gaps that arise when different pseudopotentials are used.
description: 10 figures
Eignen sich Kindernachrichten für Kinder? Eine vergleichende Qualitätsanalyse der Kindernachrichtensendungen Logo! und Newsround
Creators: name: Klinger, Jessica
name: Müller, Antje
Publisher: name: Medienwelten – Zeitschrift für Medienpädagogik
Year: 2015

description: Nachrichtensendungen für Kinder sind im Rahmen der politischen Sozialisation bedeutsam und sehen sich mit verschiedenen Anforderungen konfrontiert. In der vorliegenden Studie unterziehen die Autorinnen die deutsche Kindernachrichtensendung Logo! und die britische Kindernachrichtensendung Newsround einem inhaltsanalytischen Qualitätsvergleich. Dazu leiten sie Qualitätskriterien aus normativen, inhaltlichen sowie formalen Beurteilungskriterien aus Rezipienten-, Produzenten- sowie aus wissenschaftlicher Sicht ab, die sie für Aussagen über die Aufbereitung und Eignung dieser Kindernachrichtenprogramme heranziehen. Die Ergebnisse dieser tiefgründigen Analyse bieten detaillierten Aufschluss über Gemeinsamkeiten und Unterschiede der untersuchten Sendungen und ermöglichen so eine differenzierte Betrachtung der Frage danach, was die Qualität von Kindernachrichtensendungen – auch unter interkulturellen Gesichtspunkten – ausmacht. TV News programs for children, within the context of political socialization, are not only hugely important but are also being faced with constant challenges. The following study focuses on Germany’s Logo! and Britain’s Newsround, two of the larger scale television news programs on offer for children. The study offers ananalytical, quality comparison of the two shows. It looks both at the quality criteria of normative, context-related and formal assessment criteria, whilst exploring the perspective of the recipient, the producer and more scientific approaches. The study concludes with an analysis of the format preparation of the two shows and analyses their respective suitability for children. The study offers a profound insight into the similarities and differences between these two broadcasts and considers how we can attempt to measure the quality of children’s news programs.
description: Medienwelten – Zeitschrift für Medienpädagogik, Nr. 5 (2015): Kindernachrichten
Nearby Clumpy, Gas Rich, Star Forming Galaxies: Local Analogs of High Redshift Clumpy Galaxies
Creators: name: Garland, C. A.
name: Pisano, D. J.
name: Mac Low, M. -M.
name: Kreckel, K.
name: Rabidoux, K.
name: Guzmán, R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Luminous compact blue galaxies (LCBGs) have enhanced star formation rates and compact morphologies. We combine Sloan Digital Sky Survey data with HI data of 29 LCBGs at redshift z~0 to understand their nature. We find that local LCBGs have high atomic gas fractions (~50%) and star formation rates per stellar mass consistent with some high redshift star forming galaxies. Many local LCBGs also have clumpy morphologies, with clumps distributed across their disks. Although rare, these galaxies appear to be similar to the clumpy star forming galaxies commonly observed at z~1-3. Local LCBGs separate into three groups: 1. Interacting galaxies (~20%); 2. Clumpy spirals (~40%); 3. Non-clumpy, non-spirals with regular shapes and smaller effective radii and stellar masses (~40%). It seems that the method of building up a high gas fraction, which then triggers star formation, is not the same for all local LCBGs. This may lead to a dichotomy in galaxy characteristics. We consider possible gas delivery scenarios and suggest that clumpy spirals, preferentially located in clusters and with companions, are smoothly accreting gas from tidally disrupted companions and/or intracluster gas enriched by stripped satellites. Conversely, as non-clumpy galaxies are preferentially located in the field and tend to be isolated, we suggest clumpy, cold streams, which destroy galaxy disks and prevent clump formation, as a likely gas delivery mechanism for these systems. Other possibilities include smooth cold streams, a series of minor mergers, or major interactions.
description: 22 pages, 5 figures
Establishing an Elementary Graphic Novel Collection: An Analysis of the Most Frequently Utilized Collection Development Resources
Creators: name: Gill, Jessica H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007
Subjects: School libraries--North Carolina
Graphic novels
Collection development
School libraries--Collection development

description: A survey of 190 North Carolina elementary school media centers was conducted to determine which collection development tools media specialists utilize when they begin to establish a graphic novel collection, and which tools they find to be most effective. Follow-up interviews were conducted with 15 media specialists who had utilized collection development tools in order to find out further information regarding the usefulness of particular tools, those which were not useful, as well as collection development needs specific to the area of elementary school-level graphic novels.  Analysis of the survey data revealed that professional review journals, recommendations from media specialists and recommended title lists are the most often used tools, while recommendations from comic book stores, library science professors, and public librarians are least popular. Analysis of the follow-up interviews found that Titlewave and School Library Journal were the most commonly utilized.
Cynoclupea Malabarba & Dario, 2017, GEN. NOV.
Creators: name: Malabarba, Maria C.
name: Di Dario, Fabio
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Clupeiformes
Clupeidae
Cynoclupea

description: CYNOCLUPEA GEN. NOV.
Type species: Cynoclupea nelsoni sp. nov.
Etymology: Cyno from Greek, meaning dog, in reference to the enlarged teeth of the jaws, and clupea (Latin), a clupeoid fish.
Diagnosis: See Cynoclupea nelsoni below.
description: Published as part of Malabarba, Maria C. & Di Dario, Fabio, 2017, A new predatory herring-like fish (Teleostei: Clupeiformes) from the early Cretaceous of Brazil, and implications for relationships in the Clupeoidei, pp. 175-194 in Zoological Journal of the Linnean Society 180 (1) on page 178, DOI: 10.1111/zoj.12492, http://zenodo.org/record/14807115
Anomalous X-Ray Galactic signal from 7 keV spin-$3/2$ dark matter decay
Creators: name: Dutta, Sukanta
name: Goyal, Ashok
name: Kumar, Sanjeev
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to explain the recently reported peak at $3.55$ keV in the galactic x-ray spectrum, we propose a simple model. In this model, the Standard Model is extended by including a neutral spin-$3/2$ vector-like fermion that transforms like a singlet under SM gauge group. This $7.1$ keV spin-$3/2$ fermion is considered to comprise a portion of the observed dark matter. Its decay into a neutrino and a photon with decay life commensurate with the observed data, fits the relic dark matter density and obeys the astrophysical constraints from the supernova cooling.
description: 13 pages and 2 Figures
The School Library Can Do More to Counteract Homophobia
Creators: name: Koehler, Elizabeth M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Librarians--Social responsibilities
Gay literature
Young adults' reading--Psychological aspects
Scholarly publishing--Evaluation
Young adults' literature--Selection
Young adults' library services

description: This paper discusses the pervasiveness of homophobia in our culture and its impact on lesbian, gay, bisexual, transgender, and questioning (LGBTQ) teenagers. It argues that teacher-librarians can support LGBTQ teens by collecting and promoting young adult literature that portrays positive, realistic images of the LGBTQ community. It presents the findings of two studies - one that examined the library collections in North Carolina high schools for the inclusion of LGBTQ-themed titles and one that investigated the content of ten journals that are frequently read by teacher-librarians for articles about LGBTQ issues and collection development published since 2006. Results revealed that high school teacher-librarians are under-collecting LGBTQ-themed titles. Although 5.9 percent of American high school students identify as gay, lesbian, or bisexual, LGBTQ-themed collections in school libraries are minimal. Additionally, LGBTQ issues are rarely addressed in the scholarly journals. The paper concludes with recommendations to assist teacher-librarians in supporting LGBTQ students.
Density distribution of particles upon jamming after an avalanche in a 2D silo
Creators: name: Uñac, R. O.
name: Sales, J. L.
name: Gargiulo, M. V.
name: Vidales, A. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a complete analysis of the density distribution of particles in a two dimensional silo after discharge. Simulations through a pseudo-dynamic algorithm are performed for filling and subsequent discharge of a plane silo. Particles are monosized hard disks deposited in the container and subjected to a tapping process for compaction. Then, a hole of a given size is open at the bottom of the silo and the discharge is triggered. After a clogging at the opening is produced, and equilibrium is restored, the final distribution of the remaining particles at the silo is analyzed by dividing the space into cells with different geometrical arrangements to visualize the way in which the density depression near the opening is propagated throughout the system. The different behavior as a function of the compaction degree is discussed.
description: 11 pages, 10 figures
title: A study of shape changes and the modulation of lytic susceptibility in erythrocytes
Creators: name: Thomas, Ade
Publisher: name: University of Glasgow
Year: 1979

description: Conductimetric techniques were used to study the action of glutaraldehyde on the response of erythrocytes to lytic agents. Modulation of cell response to fatty acids could be increased 200-fold in fixed cells. Studies with ghosts suggest that sensitisation is predominantly a membrane phenomenon. Comparative studies of oleic acid distribution in normal and sensitised erythrocytes indicate that added fatty acid is evenly distributed in normal cells, but may be excluded from the vicinity of membrane proteins in fixed cells. The action of bee venom phospholipase A2 on fixed and unfixed erythrocytes is consistent with greater distortion of the lipid bilayer in sensitised cells. The most effective inhibitors of the sensitised leakage response were multivalent cations, chloropromazine and valinomycin. This suggests that modulation of the response to lytic agents in fixed cells involves membrane areas rich in polar phospholipids and of relatively low fluidity. Comparative studies of the physico-chemical effects of glutaraldehyde on membrane components showed extensive cross linkage of phosphatidyl serine and phosphatidyl ethanolamine and of the spectrin family of proteins but of few other membrane structures. Studies of the behaviour of fixed cells in hypotonic medium showed that resistance to osmotic lysis occurs in two stages and that the first stage correlates with the cross-linkage of the spectrin polypeptides. Induction of shape changes in erythrocytes by mild glutaralde-hyde treatment appears to require redistribution of membrane components and suggests that polymerisation of the spectrin polypeptides is the trigger for structural reorganisation of the membrane. It is suggested that the sensitised state is a transitory period in the shape change process resulting from a topological redistribution of membrane structures which is predominantly triggered by spectrin cross-linkage and that this membrane reorganisation under-lies the shape changes. The partial inhibition of cross-linkage of membrane proteins in erythrocyte ghosts by multivalent cations (Ca2+ and Fe3+, but not Mg2+ and La3+) suggests that the interaction of spectrin components with other membrane structures may depend substantially on the conformational states of the proteins.
Levy flights and nonhomogenous memory effects: relaxation to a stationary state
Creators: name: Srokowski, Tomasz
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The non-Markovian stochastic dynamics involving Levy flights and a potential in the form of a harmonic and non-linear oscillator is discussed. The subordination technique is applied and the memory effects, which are nonhomogeneous, are taken into account by a position-dependent subordinator. In the non-linear case, the asymptotic stationary states are found. The relaxation pattern to the stationary state is derived for the quadratic potential: the density decays like a linear combination of the Mittag-Leffler functions. It is demonstrated that in the latter case the density distribution satisfies a fractional Fokker-Planck equation. The densities for the non-linear oscillator reveal a complex picture, qualitatively dependent on the potential strength, and the relaxation pattern is exponential at large time.
description: 12 pages, 4 figures
title: A generalization of Matthews partial metric space and fixed point theorems
Creators: name: Antal, S.
name: Gairola, U. C.
name: Khantwal, D.
name: Matkowski, J.
name: Negi, S.
Publisher: name: Publishing House of Poznan University of Technology
Year: 2021

description: Fasciculi Mathematici, 65, 5-15
You Have a Tutorial, Now What?: An Analysis of Factors Contributing to an Expanded Use of Online Research Tutorials by Academic Librarians
Creators: name: Stover, Jill S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004
Subjects: College and university libraries
User Training
Computer-assisted instruction

description: This study seeks to better understand how online tutorials are being incorporated into instruction efforts at academic libraries. University of North Carolina at Chapel Hill librarians and the tutorials they created are grouped by the degree to which the librarians are reliant on the tutorials for in-class instruction, referred to here as expanded use. The results of this research identified the following factors that may play a role in determining the level of expanded use of a tutorial: the relationship between the intended audience of the tutorial to the actual audience in the classroom, the relationship between the needs filled by the tutorial and the actual needs of the patrons, the degree to which visual elements are incorporated into the tutorial, the degree to which tutorials are recognized as marketing tools, the involvement of faculty in promoting tutorials, and the level of demand for library instruction.
Asymptotics with a positive cosmological constant: III. The quadrupole formula
Creators: name: Ashtekar, Abhay
name: Bonga, Béatrice
name: Kesavan, Aruna
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Almost a century ago, Einstein used a weak field approximation around Minkowski space-time to calculate the energy carried away by gravitational waves emitted by a time changing mass-quadrupole. However, by now there is strong observational evidence for a positive cosmological constant, $Λ$. To incorporate this fact, Einstein's celebrated derivation is generalized by replacing Minkowski space-time with de Sitter space-time. The investigation is motivated by the fact that, because of the significant differences between the asymptotic structures of Minkowski and de Sitter space-times, many of the standard techniques, including the standard $1/r$ expansions, can not be used for $Λ>0$. Furthermore since, e.g., the energy carried by gravitational waves is always positive in Minkowski space-time but can be arbitrarily negative in de Sitter space-time \emph{irrespective of how small $Λ$ is}, the limit $Λ\to 0$ can fail to be continuous. Therefore, a priori it is not clear that a small $Λ$ would introduce only negligible corrections to Einstein's formula. We show that, while even a tiny cosmological constant does introduce qualitatively new features, in the end, corrections to Einstein's formula are negligible for astrophysical sources currently under consideration by gravitational wave observatories.
description: 31 pages, 2 figures
Schrödinger potentials solvable in terms of the general Heun functions
Creators: name: Ishkhanyan, A. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that there exist 35 choices for the coordinate transformation each leading to a potential for which the stationary Schrödinger equation is exactly solvable in terms of the general Heun functions. Because of the symmetry of the Heun equation with respect to the transposition of its singularities only eleven of these potentials are independent. Four of these independent potentials are always explicitly written in terms of elementary functions, one potential is given through the Jacobi elliptic sn-function, and the others are in general defined parametrically. Nine of the independent potentials possess exactly or conditionally integrable hypergeometric sub-potentials for which each of the fundamental solutions of the Schrödinger equation is written through a single hypergeometric function. Many of the potentials possess sub-potentials for which the general solution is written through fundamental solutions each of which is a linear combination of two or more Gauss hypergeometric functions. We present an example of such a potential which is a conditionally integrable generalization of the third exactly solvable Gauss hypergeometric potential.
An improved lower bound for the $L_2$-discrepancy
Creators: name: Hinrichs, Aicke
name: Larcher, Gerhard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We give an improved lower bound for the $L_2$-discrepancy of finite point sets in the unit square.
description: 11 pages, version 2: several minor changes incorporating referee's suggestions
Comparing metrics for quantification of children’s tongue shape complexity using ultrasound imaging
Creators: name: Kabakoff, Heather
name: Beames, Sam Pearl
name: Tiede, Mark
name: Whalen, D. H.
name: Preston, Jonathan L.
name: McAllister, Tara
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Speech sound disorders can pose a challenge to communication in children that may persist into adulthood. As some speech sounds are known to require differential control of anterior versus posterior regions of the tongue body, valid measurement of the degree of differentiation of a given tongue shape has the potential to shed light on development of motor skill in typical and disordered speakers. The current study sought to compare the success of multiple techniques in quantifying tongue shape complexity as an index of degree of lingual differentiation in child and adult speakers. Using a pre-existing data set of ultrasound images of tongue shapes from adult speakers producing a variety of phonemes, we compared the extent to which three metrics of tongue shape complexity differed across phonemes/phoneme classes that were expected to differ in articulatory complexity. We then repeated this process with ultrasound tongue shapes produced by a sample of young children. The results of these comparisons suggested that a modified curvature index and a metric representing the number of inflection points best reflected small changes in tongue shapes across individuals differing in vocal tract size. Ultimately, these metrics have the potential to reveal delays in motor skill in young children, which could inform assessment procedures and treatment decisions for children with speech delays and disorders.
Carolina EPI
Creators: name: Vaughn, Thomas Allen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2001
Subjects: Information Interfaces and Presentation--Group and Organization Interfaces Hypertext--Hypermedia--Navigation
Information systems
Information Systems--Information Interfaces and Presentation
Information Services--Web-based services

description: This paper describes the implementation process of the project making the Carolina Electronic Public Information Web site manageable by users not having skills specific to Web design. Carolina EPI (Electronic Public Information) is a new public service information program from the University of North Carolina at Chapel Hill. The site links to statistical data in tables, charts, maps or reports and provides the navigational tools for easy access. The emphasis is on the latest available tabular data from reputable public sources currently on the Web. Links go directly to documents in public collections from state, local, federal, and international sources. They include federal and state agencies, the NC State Data Center, UNC-CH research centers and the UNC-CH library system. The program is supported by the UNC-CH Office of the Provost, the Cecil G. Sheps Center for Health Services Research, and the Department of Social Medicine in the School of Medicine.
Strange baryon spectroscopy in the relativistic quark model
Creators: name: Faustov, R. N.
name: Galkin, V. O.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Mass spectra of strange baryons are calculated in the framework of the relativistic quark model based on the quasipotential approach. Baryons are treated as the relativistic quark-diquark bound systems. It is assumed that two quarks with equal constituent masses form a diquark. The diquark excitations and its internal structure are consistently taken into account. Calculations are performed up to rather high orbital and radial excitations of strange baryons. On this basis the Regge trajectories are constructed. The obtained results are compared with available experimental data and previous predictions. It is found that all masses of the 4- and 3-star, as well as most of the 2- and 1-star states of strange baryons with established quantum numbers are well reproduced. The developed relativistic quark-diquark model predicts less excited states than three-quark models of strange baryons.
description: 21 pages, 3 figures
Trigonosciadium tuberosum Boissier 1844
Creators: name: Eroğlu, Hüseyin
name: Behçet, Lütfi
name: Pinar, Süleyman Mesut
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Apiales
Apiaceae
Trigonosciadium
Trigonosciadium tuberosum

description: 1. Trigonosciadium tuberosum Boiss. in Ann. Sci. Nat., Bot. sér. 3, 1: 345 (1844) (Figs 1, 5–8).
 Type:— [IRAN?]. In Mesopotamia, Aucher 3723. Holotype: P ([digital image!] barcode number: P 00476419). Isotype: K ([digital image!] barcode number: K 000685757).
 Synonym: Heracleum mesopotamicum M. Hiroe, Umbelliferae World: 1749 (1979), replacement name.
Biennial, herbaceous, 30–70 cm, pubescent, with petiole remains of last year at the base of the stem. Root swollen fusiform, 1–3(–5) paired. Stem erect, lower part 4–5 angular, striate, rarely purple. Leaves 1-pinnate, pilose, leaflets at the lower part of stem 7, middle 5, upper 3 paired, terminal leaflets single or slightly 3-lobed, margins serrate. Petiole sheath well-developed, in the lower part narrowly lanceolate, in the upper part ovate-oblong, widened and clasping the stem. Rays 7–30, 1–13 cm, unequal, pilose. Raylets 8–25, 4–18 mm, pilose. Bracts 1–5, 3–10 mm, linear-subulate, pilose. Bracteoles 2–4, 4–10 mm, linear, pilose, at least some of them longer than half of the pedicels in each umbellule. Sepals triangular, inconspicuous. Petals 5, white, deeply emarginate, pubescent at bottom and usually pinkish, the outer radiant, 4–5 mm. Styles ca. 3 mm, glabrous. Stylopodium cupular with undulate margin. Stigma capitate. Fruit 6–13× 5–10 mm, orbicular-obovate, obcordate, dorsal surface of mericarp hirsute and ± pilose, commissural surface of mericarp glabrous, mericarp margin usually undulate and purple; dorsal vittae 4, filiform, reaching 1/2–2/3 of mericarp; commissural vittae 2, filiform, reaching 2/3 of mericarp. Pollen grains in monads, tricolporate, perprolate (P / E: 2.06); surface ornamentation rugulate.
 Phenology:— Flowering occurs from May to June.
 Distribution: — Turkey (Southeast of Turkey), Iran (Iranian Azerbaijan).
 Habitat:— This species grows on stony, rocky valley slopes.
 Threat category: —The latter Turkish collections of Trigonosciadium tuberosum were dated 1888 from C8 square, in Diyarbakır. During our study one of the population of this species was found also in Diyarbakır, but in C7 square. In accordance with our field observations, this population was distributed in 5–10 km 2 area and included approximately 300 mature individuals. According to the available data, it should be regarded as ‘Endangered’ [EN C2a(ii)] in Turkey.
 Examined specimens:— C7 Diyarbakır: Bağlar, valley slopes on the Alaçimen Village, 37°44ʹ13ʺN, 39°55ʹ37ʺE, 1240 m, stony and rocky slopes, 5 May 2013, H. Eroğlu 1029 (VANF!); ibidem, 25 May 2013, H. Eroğlu 1030 (VANF!).
description: Published as part of Eroğlu, Hüseyin, Behçet, Lütfi & Pinar, Süleyman Mesut, 2017, Taxonomic revision of the genus Trigonosciadium (Apiaceae) in Turkey, pp. 43-60 in Phytotaxa 313 (1) on page 46, DOI: 10.11646/phytotaxa.313.1.3, http://zenodo.org/record/13700212
A Critique of the Postmodernist Project in Libraries
Creators: name: Olsen, Joshua
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017
Subjects: Libraries
Postmodernism
Epistemology
Public Goods

description: There is a concerning development occurring in today’s libraries stemming from a complex intellectual history and fed by contemporary identity culture and politics. This is the increasing hold that a class of ideas is having on the underpinnings of librarianship: namely, those ideas commonly styled ‘postmodern.’ The effect that postmodernist thinking has had on libraries is threefold: It gives the profession a theoretical stance about knowledge that is unfit for accomplishing the emancipatory aims of the library; undermines the pursuance of libraries as a public good; indulges an unreasonable skepticism about authority in general.
Performance Analysis of Energy Detection over Mixture Gamma based Fading Channels with Diversity Reception
Creators: name: Alhussein, Omar
name: Hammadi, Ahmed Al
name: Sofotasios, Paschalis C.
name: Muhaidat, Sami
name: Liang, Jie
name: Al-Qutayri, Mahmoud
name: Karagiannidis, George K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The present paper is devoted to the evaluation of energy detection based spectrum sensing over different multipath fading and shadowing conditions. This is realized by means of a unified and versatile approach that is based on the particularly flexible mixture gamma distribution. To this end, novel analytic expressions are firstly derived for the probability of detection over MG fading channels for the conventional single-channel communication scenario. These expressions are subsequently employed in deriving closed-form expressions for the case of square-law combining and square-law selection diversity methods. The validity of the offered expressions is verified through comparisons with results from respective computer simulations. Furthermore, they are employed in analyzing the performance of energy detection over multipath fading, shadowing and composite fading conditions, which provides useful insighs on the performance and design of future cognitive radio based communication systems.
description: To appear in the IEEE WiMob 2015 conference proceedings
Analysis of Algorithms and Partial Algorithms
Creators: name: MacFie, Andrew
Publisher: name: arXiv
Year: 2016
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We present an alternative methodology for the analysis of algorithms, based on the concept of expected discounted reward. This methodology naturally handles algorithms that do not always terminate, so it can (theoretically) be used with partial algorithms for undecidable problems, such as those found in artificial general intelligence (AGI) and automated theorem proving. We mention an approach to self-improving AGI enabled by this methodology. Aug 2017 addendum: This article was originally written with multiple audiences in mind. It is really best put in the following terms. Goertzel, Hutter, Legg, and others have developed a definition of an intelligence score for a general abstract agent: expected lifetime reward in a random environment. AIXI is generally the optimal agent according to this score, but there may be reasons to analyze other agents and compare score values. If we want to use this definition of intelligence in practice, perhaps we can start by analyzing some simple agents. Common algorithms can be thought of as simple agents (environment is input, reward is based on running time) so we take the goal of applying the agent intelligence score to algorithms. That is, we want to find, what are the IQ scores of algorithms? We can do some very simple analysis, but the real answer is that even for simple algorithms, the intelligence score is too difficult to work with in practice.
WGBS shade and competition experiment 2023
Creators: name: Parker, Timothy
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Life Sciences
subject: Ecology and Evolutionary Biology
subject: Biology
subject: Terrestrial and Aquatic Ecology

description: An experiment to assess the extent to which recruitment of seedling bluebunch wheatgrass (Pseudoroegneria spicata) plants is reduced by interspecific competition from cheatgrass (Bromus tectorum) and yellow star-thistle (Centaurea solstitialis) in a semi-arid grassland in Washington State, USA.
The Information Society in Science Fiction
Creators: name: Holt, Patrick D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009
Subjects: Information science--Social aspects
Science fiction
Digital divide
Computers and civilization

description: This paper examines the range of ways that science fiction literature, film, and television programming have portrayed aspects of concept of the information society. It introduces both science fiction and the information society using contemporary scholarship. It goes on to examine aspects of the information society along political, economic, and cultural axes and then explores treatments in relevant works. The paper concludes that the science fiction genre has much to offer scholars and students of information society studies, and it proposes the incorporation of science fiction into information science curriculum and canon as a narrative parallel to standard non-narrative scholarship.
Strangeness production in heavy-ion collisions
Creators: name: Palmese, Alessia
name: Pagliara, Giuseppe
name: Drago, Alessandro
name: Linnyk, Olena
name: Cassing, Wolfgang
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A study of the "horn" in the particle ratio $K^+/π^+$ for central heavy-ion collisions as a function of the collision energy $\sqrt{s}$ is presented. We analyse two different interpretations: the onset of deconfinement and the transition from a baryon- to a meson-dominated hadron gas. We use a realistic equation of state (EOS), which includes both hadron and quark degrees-of-freedom. The Taub-adiabate procedure is followed to determine the system at the early stage. Our results do not support an explanation of the horn as due to the onset of deconfinement. Using only hadronic EOS we reproduced the energy dependence of the $K^+/π^+$ and $Λ/π^-$ ratios employing an experimental parametrisation of the freeze-out curve. We observe a transition between a baryon- and a meson-dominated regime; however, the reproduction of the $K^+/π^+$ and $Λ/π^-$ ratios as a function of $\sqrt{s}$ is not completely satisfying. We finally propose a new idea for the interpretation of the data, the roll-over scheme, in which the scalar meson field $σ$ has not reached the thermal equilibrium at freeze-out. The rool-over scheme for the equilibration of the $σ$-field is based on the inflation mechanism. The non-equilibrium evolution of the scalar field influences the particle production, e.g. $K^+/π^+$, however, the fixing of the free parameters in this model is still an open issue.
description: 10 pages, 7 figures, 9th International Workshop on Critical Point and Onset of Deconfinement, 17-21 November, 2014
Gauging Involvement: An Exploratory Survey of Public Health Librarians, Student Literature, and Institutional Repositories
Creators: name: Foster, Erin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Institutional repositories
Survey--Public health librarians
College and university libraries--Services to graduate students

description: This paper explores the involvement of public health librarians in the deposit of student literature (e.g. theses, journal publications, posters) into university-based institutional repositories. While there is literature about institutional repositories and the roles that librarians can fill related to them, there is limited data as to the actions of librarians in this context. This paper addresses this gap, particularly as it pertains to public health librarians. Twenty-two librarians identified as library liaisons or library contacts for public health students at large, research universities completed a survey on this topic. Overall, the survey results indicate active involvement or interest by public health librarians in the preservation of student scholarly content and imply collaboration with institutional repositories to do so. Further research is needed to determine the extent of librarian involvement in such efforts as well as the degree to which this involvement extends to other groups of librarians.
The visual size is enough to automatically induce the potentiation of grasping behaviors
Creators: name: Heurley, Loïc
name: Mohamed Halim, HARRAK
name: Guerineau, Ronan
name: Paul, Ferrier
name: Morgado, Nicolas
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Cognitive Psychology
subject: Cognition and Perception
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Seeing objects usually grasped with a power or a precision grip (e.g., an apple vs. a cherry) potentiates power-grip and precision-grip responses, respectively. An embodied account suggests that this effect occur because the visual representations of objects would integrate some motor processes. A new account, named the size-coding account, argues that this effect could be rather due to an overlapping of size codes used to represent both manipulable objects and response options. In this paper, we investigate whether this potentiation effect could be merely due to a low-level visual feature that favor a size-coding of stimuli: the visual size in which objects are presented on screen. Accordingly, we conducted two experiments in which we presented highly elementary and non-graspable stimuli (i.e., ink spots) either large or small rather than graspable objects. Our results showed that the mere visual size automatically potentiates power- and precision-grip responses that is in line with the size-coding account of the potentiation effect of grasping behaviors. Moreover, these results appeal to improve the methodological control of the size of stimuli especially when researchers try to support the embodied account . Keywords. Visual object representations; Embodied Cognition; Manipulable Objects; Grasping; Visual size; Size coding account
Problématique de la traduction des proverbes populaires égyptiens vers le français dans « Taxi " hawâdît al-machâwîr» de Khaled Al Khamissi
Creators: name: Gharib, Manal
Publisher: name: figshare
Year: 2023
Subjects: Other language, communication and culture not elsewhere classified
Translation and interpretation studies

description: Problématique de la traduction des proverbes populaires égyptiens vers le français dans « Taxi " hawâdît al-machâwîr» de Khaled Al Khamissi
Partly invariant steady state of two interacting open quantum systems
Creators: name: Bernád, József Zsolt
name: Torres, Juan Mauricio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate two interacting open quantum systems whose time evolutions are governed by Markovian master equations. We show a class of coupled systems whose interaction leaves invariant the steady state of one of the systems, i.e., only one of the reduced steady states is sensitive to the interactions. A detailed proof with the help of the Trotter product formula is presented. We apply this general statement to a few models, one of which is the optomechanical coupling model where an optical cavity is coupled to a small mechanical oscillator.
description: 15 pages, 4 figures
Understanding the users of a large research university's library's information commons
Creators: name: Treneman, Gardner
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: Learning commons
Needs assessment
University of North Carolina at Chapel Hill--Libraries
College and university libraries--Evaluation

description: This study will look at the variables of who comes into a large university's information commons, what they do while they are there, and if they are satisfied with the specific implementation. Software installed on the users' computers will track what applications are accessed, and a log of reference questions will be kept as well. A questionnaire will survey the users' overall satisfaction with the space. The results of this study will allow those who are in charge of the commons space to better meet the needs of the diverse population who use it. This will also benefit other, similar universities as well.
Customized 3D-printed stackable cell culture inserts tailored with bioactive membranes
Creators: name: Dogan, Asli Aybike
name: Dufva, Martin
Publisher: name: figshare
Year: 2023
Subjects: Biomaterials
Biofabrication
Tissue engineering

description: There is a high demand in various fields to develop complex cell cultures. Apart from titer plates, Transwell inserts are the most popular device because they are commercially available, easy to use, and versatile. While Transwell inserts are standardized, there are potential gains to customize inserts in terms of the number of layers, height between the layers and the size and composition of the bioactive membrane. To demonstrate such customization, we present a small library of 3D-printed inserts and a robust method to functionalize the inserts with hydrogel and synthetic membrane materials. The library consists of 24- to 96-well sized inserts as whole plates, strips, and singlets. The density of cultures (the number of wells per plate) and the number of layers was decided by the wall thickness, the capillary forces between the layers and the ability to support fluid operations. The highest density for a two-layer culture was 48-well plate format because the corresponding 96-well format could not support fluidic operations. The bottom apertures were functionalized with hydrogels using a new high-throughput dip-casting technique. This yielded well-defined hydrogel membranes in the apertures with a thickness of about 500 µm and a %CV (coefficient of variance) of < 10%. Consistent intestine barrier was formed on the gelatin over 3-weeks period. Furthermore, mouse intestinal organoid development was compared on hydrogel and synthetic filters glued to the bottom of the 3D-printed inserts. Condensation was most pronounced in inserts with filters followed by the gelatin membrane and the control, which were organoids cultured at the bottom of a titer plate well. This showed that the bottom of an insert should be chosen based on the application. All the inserts were fabricated using an easy-to-use stereolithography (SLA) printer commonly used for dentistry and surgical applications. Therefore, on demand printing of the customized inserts is realistic in many laboratory settings.
Providing Access to Archival Collections With Private and Potentially Sensitive Materials
Creators: name: Chang, Ji W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: Manuscripts--History
Right of privacy
Access to archives

description: This paper provides a single document identifying characteristics of existing archival collections with privacy and access concerns and the methodologies and justifications used to providing access to these collections. Privacy concerns are those regarding third party subjects. Using the content analysis methodology, documented cases and case studies were analyzed to capture relevant information about the collections studied and to  address the questions: (1) Do specific characteristics of collections with private materials make them riskier to disclose? (2) What guidelines and/or justifications are used to make access decisions? (3) What unique methods are used to provide access? This paper may provide a fuller understanding of existing privacy and access concerns in the archives and provide manuscript archivists with basic guidelines in making access decisions to collections with private materials.