cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inequality Aversion Dominates Competitive Behavior in Dynamic Sequential Duopolies
Creators: Kecinski, Maik
Publisher: name: University of Alberta Library
Year: 2018

This study introduces a two-period sequential choice model, which is tested in controlled laboratory experiments. Players have a one time opportunity to invest positive relative profits to lower marginal cost and gain competitive advantage. Theory predicts one sub-game perfect Nash equilibrium in pure strategies with first movers earning much larger payoffs than second movers. On the contrary, experimental results show that Cournot play is modal. Participants appear to be inequality averse, which was brought on by either a fear of punishment or pure preferences for equal pay.
Validity and Reliability of a School Travel Survey
Creators: name: Ward, Dianne S.
name: Neelon, Brian
name: Evenson, Kelly R.
name: Ball, Sarah C.
name: Vaughn, Amber
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Despite the growing interest in active (ie, nonmotorized) travel to and from school, few studies have explored the measurement properties to assess active travel. We evaluated the criterion validity and test–retest reliability of a questionnaire with a sample of young schoolchildren to assess travel to and from school, including mode, travel companion, and destination after school.
title: Rezension: Peter Geimer, Die Farben der Vergangenheit. Wie Geschichte zu Bildern wird
Creators: name: Tack, Anja
Publisher: name: ZZF - Leibniz-Zentrum für Zeithistorische Forschung: Visual History
Year: 2022

description: Der Kunsthistoriker Peter Geimer zeichnet in seinem jüngsten Buch mit dem griffigen Titel „Die Farben der Vergangenheit“ die Entwicklungen und Veränderungen der „visuellen Repräsentation von Geschichte“ seit dem 19. Jahrhundert nach. Eröffnet wird die Darstellung mit kenntnisreich und flüssig geschriebenen Kapiteln zur Historienmalerei, die zeigen, wie sich die Malerei im 19. Jahrhundert mit dem Aufkommen der Idee, Wirklichkeit abzubilden, veränderte. Fortan galt es, detailliert und so genau wie möglich, Ereignisse wiederzugeben, die sich im besten Falle durch Zeitzeugen bzw. Augenzeugen oder originale Objekte belegen ließen. Anja Tack rezensiert im Visual-History-Beitrag das neu erschienene Werk.
Neighborhood Socioeconomic Status and Non School Physical Activity and Body Mass Index in Adolescent Girls
Creators: name: Rung, Ariane
name: Lytle, Leslie
name: Cohen, Deborah A.
name: Catellier, Dianne J.
name: Voorhees, Carolyn C.
name: Conway, Terry L.
name: Ashwood, J. Scott
name: Dowda, Marsha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Socioeconomic status (SES) has well known associations with a variety of health conditions and behaviors in adults but is unknown in adolescents.
National Study of Changes in Community Access to School Physical Activity Facilities: The School Health Policies and Programs Study
Creators: name: Wen, Fang
name: Evenson, Kelly R.
name: Heinrich, Katie M.
name: Lee, Sarah M.
name: Eyler, Amy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: A Healthy People 2010 developmental objective (22-12) was set to increase the proportion of the nation’s public and private schools that provide access to their physical activity spaces and facilities for all persons outside of normal school hours. The purpose of this study was to describe the prevalence of indoor and outdoor facilities at schools and the availability of those facilities to the public in 2000 and 2006.
Sheaves of bounded $p$-adic logarithmic differential forms
Creators: name: Grosse-Klönne, Elmar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $K$ be a local field, $X$ the Drinfel'd symmetric space $X$ of dimension $d$ over $K$ and ${\mathfrak X}$ the natural formal ${\mathcal O}_K$-scheme underlying $X$; thus $G={\rm GL}\sb {d+1}(K)$ acts on $X$ and ${\mathfrak X}$. Given a $K$-rational $G$-representation $M$ we construct a $G$-equivariant subsheaf ${\mathcal M}^0_{{\mathcal O}_{\dot{K}}}$ of ${\mathcal O}_K$-lattices in the constant sheaf $M$ on ${\mathfrak X}$. We study the cohomology of sheaves of logarithmic differential forms on $X$ (or ${\mathfrak X}$) with coefficients in ${\mathcal M}^0_{{\mathcal O}_{\dot{K}}}$. In the second part we give general criteria for two conjectures of P. Schneider on $p$-adic Hodge decompositions of the cohomology of $p$-adic local systems on projective varieties uniformized by $X$. Applying the results of the first part we prove the conjectures in certain cases.
GraffMatch: Global Matching of 3D Lines and Planes for Wide Baseline LiDAR Registration
Creators: name: Lusk, Parker C.
name: Parikh, Devarth
name: How, Jonathan P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Using geometric landmarks like lines and planes can increase navigation accuracy and decrease map storage requirements compared to commonly-used LiDAR point cloud maps. However, landmark-based registration for applications like loop closure detection is challenging because a reliable initial guess is not available. Global landmark matching has been investigated in the literature, but these methods typically use ad hoc representations of 3D line and plane landmarks that are not invariant to large viewpoint changes, resulting in incorrect matches and high registration error. To address this issue, we adopt the affine Grassmannian manifold to represent 3D lines and planes and prove that the distance between two landmarks is invariant to rotation and translation if a shift operation is performed before applying the Grassmannian metric. This invariance property enables the use of our graph-based data association framework for identifying landmark matches that can subsequently be used for registration in the least-squares sense. Evaluated on a challenging landmark matching and registration task using publicly-available LiDAR datasets, our approach yields a 1.7x and 3.5x improvement in successful registrations compared to methods that use viewpoint-dependent centroid and "closest point" representations, respectively.
description: accepted to RA-L; 8 pages. arXiv admin note: text overlap with arXiv:2205.08556
Results of a Randomized Trial Testing Messages Tailored to Participant-Selected Topics among Female College Students: Physical Activity Outcomes
Creators: name: Bowling, J. Michael
name: Haines, Pamela S.
name: Campbell, Marci K.
name: DeVellis, Brenda M.
name: Steck, Susan
name: Quintiliani, Lisa M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: A better understanding of identifying tailoring variables would improve message design. Tailoring to a behavior that a participant selects as one they would like to work on may increase message relevance, and thus effectiveness. This trial compared 3 groups: message tailored to physical activity as a participant-selected topic (choice), message tailored to physical activity as an expert-determined topic (expert), or nontailored message (comparison).
Cluster algebras from dualities of 2d N=(2,2) quiver gauge theories
Creators: name: Benini, Francesco
name: Park, Daniel S.
name: Zhao, Peng
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Rings and Algebras (math.RA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We interpret certain Seiberg-like dualities of two-dimensional N=(2,2) quiver gauge theories with unitary groups as cluster mutations in cluster algebras, originally formulated by Fomin and Zelevinsky. In particular, we show how the complexified Fayet-Iliopoulos parameters of the gauge group factors transform under those dualities and observe that they are in fact related to the dual cluster variables of cluster algebras. This implies that there is an underlying cluster algebra structure in the quantum Kahler moduli space of manifolds constructed from the corresponding Kahler quotients. We study the S^2 partition function of the gauge theories, showing that it is invariant under dualities/mutations, up to an overall normalization factor whose physical origin and consequences we spell out in detail. We also present similar dualities in N=(2,2)* quiver gauge theories, which are related to dualities of quantum integrable spin chains.
description: 49 pages + appendices, 8 figures
Association between School- and Nonschool-Based Activity Programs and Physical Activity in Adolescent Girls
Creators: name: Moody, Jamie
name: Parra-Medina, Deborah
name: Taber, Daniel R.
name: Pratt, Charlotte A.
name: Foreman, Robyn D.
name: Lytle, Leslie A.
name: Stevens, June
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Some researchers have questioned if activity programs would be more effective if based outside school (eg, community leagues) rather than within schools. This study compared participation in activity programs based within and outside of school, and estimated the associations between participation and moderate-vigorous physical activity (MVPA) among adolescent girls.
HD 213258: a new rapidly oscillating, super-slowly rotating, strongly magnetic Ap star in a spectroscopic binary
Creators: name: Mathys, Gautier
name: Khalack, Viktor
name: Kobzar, Oleksandr
name: LeBlanc, Francis
name: North, Pierre L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report about HD 213258, an Ap star that we recently identified as presenting a unique combination of rare, remarkable properties. Our study of this star is based on ESPaDOnS Stokes I and V data obtained at 7 epochs spanning a time interval slightly shorter than 2 years, on TESS data, and on radial velocity measurements from the CORAVEL data base. We confirm that HD 213258 is definitely an Ap star. We found that, in its spectrum, the Fe II λ6149.2 Å line is resolved into its two magnetically split components. The mean magnetic field modulus of HD 213258,  ~ 3.8 kG does not show significant variations over ~2 years. Comparing our mean longitudinal field determinations with a couple of measurements from the literature, we show that the stellar rotation period must likely be of the order of 50 years, with a reversal of the field polarity. Moreover, HD 213258 is a rapidly oscillating Ap (roAp) star, in which high overtone pulsations with a period of 7.58 min are detected. Finally, we confirm that HD 213258 has a mean radial velocity exceeding (in absolute value) that of at least 99% of the Ap stars. The radial velocity shows low amplitude variations, which suggests that the star is a single-line spectroscopic binary. It is also a known astrometric binary. While its orbital elements remain to be determined, its orbital period likely is one of the shortest known for a binary roAp star. Its secondary is close to the borderline between stellar and substellar objects. There is a significant probability that it may be a brown dwarf. While most of the above-mentioned properties, taken in isolation, are observed in a small fraction of the whole population of Ap stars, the probability that a single star possesses all of them is extremely low. This makes HD 213258 an exceptionally interesting object that deserves to be studied in detail in the future.
description: Accepted for publication in A&A; 6 pages, 4 figures
How Much Observation Is Enough? Refining the Administration of SOPARC
Creators: name: Evenson, Kelly R.
name: Lapham, Sandra
name: Cohen, Deborah A.
name: Ward, Phillip
name: Hillier, Amy
name: McKenzie, Thomas L.
name: Setodji, Claude
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The Systematic Observation of Play and Recreation in Communities (SOPARC) was designed to estimate the number and characteristics of people using neighborhood parks by assessing them 4 times/day, 7 days/week. We tested whether this schedule was adequate and determined the minimum number of observations necessary to provide a robust estimate of park user characteristics and their physical activity levels.
La didattica a distanza, dall'emergenza alle buone pratiche. Dialogo tra Giuseppe Fiorentino ed Enrica Salvatori
Creators: name: Fiorentino, Giuseppe
name: Salvatori, Enrica
Publisher: name: G. Fiorentino, E. Salvatori, La didattica a distanza, dall'emergenza alle buone pratiche, «Umanistica digitale», 4, 2020, n.8, pp. 165-182
Year: 2020

description: L'isolamento imposto dalla pandemia del Covid-19 ha obbligato le università a dotarsi rapidamente di strumenti atti a consentire la prosecuzione dell'attività didattica a distanza. Interventi più disordinati e spontanei, tesi al medesimo scopo, sono stati attuati anche nel mondo della scuola. La comunità degli umanisti digitali e buona parte dei docenti, anche quelli prima blandamente o scarsamente interessati all’e-learning, hanno cominciato a riflettere sulle potenzialità e quindi sulle strategie per rendere efficace l’insegnamento con gli strumenti digitali genericamente intesi. Il 25 marzo 2020, all’interno del Seminario di Cultura Digitale (corso istituzionale del Cdl magistrale in Informatica Umanistica dell’Università di Pisa), si è tenuto un dialogo telematico tra i due relatori, teso non a valutare l’efficacia dei mezzi adottati dai diversi enti formativi, ma a discutere le metodologie, le buone pratiche e gli strumenti necessari per attuarle, mettendo a disposizione le competenze e le conoscenze che, in qualità di umanisti digitali ed esperti in tecnologie dell’apprendimento, hanno maturato negli anni. Quello che segue è l’elaborazione del seminario a seguito delle osservazioni raccolte.
Planning for Pedestrians and Bicyclists: Results From a Statewide Municipal Survey
Creators: name: Kerr, Zachary Y.
name: Evenson, Kelly R.
name: Aytur, Semra A.
name: Rodríguez, Daniel A.
name: Satinsky, Sara B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We surveyed North Carolina (NC) municipalities to document the presence of municipal walking- and bicycling-related projects, programs, and policies; to describe whether prevalence of these elements differed if recommended in a plan; and to characterize differences between urban and rural municipalities.
title: Es geht darum, ein Gleichgewicht zu finden. Die Journalistin Ronja von Wurmb-Seibel im Interview
Creators: name: Funke, Janine
Publisher: name: ZZF - Leibniz-Zentrum für Zeithistorische Forschung: Visual History
Year: 2022

description: Im neuen Visual-History-Beitrag unterhält sich Janine Funke mit der Journalistin Ronja von Wurmb-Seibel. Im Fokus stehen dabei das neu veröffentlichte Buch der Journalistin sowie ihr Umgang mit Nachrichten und Social Media. Auch die Stichpunkte Kriegsfotografie, Symbolbilder, Fake News und Transparenz kommen dabei zur Sprache.
Coherent states with minimum Gini uncertainty for finite quantum systems
Creators: name: Lei, C.
name: Vourdas, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Uncertainty relations $Δ(ρ)\ge η_d$ in terms of the Gini index are studied. The `Gini uncertainty constant' $η_d$ is estimated numerically and compared to an upper bound $\tilde η_d\ge η_d$. It is shown that for large $d$ we get $\tilde η_d\approx η_d$. States $\ket{g}$ with minimum Gini uncertainty and displacement transformations are used to define coherent states $\ket{α, β}_g$ (where $α, β\in {\mathbb Z}_d$) with minimum Gini uncertainty ($Δ[\ket{α, β}_g\;_g\bra{α, β}]\approx η_d$). The $\ket{α, β}_g$ resolve the identity, and therefore an arbitrary state can be expanded in terms of them. This expansion is robust in the presence of noise.
Evaluation of a Questionnaire to Assess Sedentary and Active Behaviors in the Southern Community Cohort Study
Creators: name: Matthews, Charles E.
name: Signorello, Lisa B.
name: Buchowski, Maciej S.
name: Fowke, Jay H.
name: Hargreaves, Margaret K.
name: Schlundt, David G.
name: Blot, William J.
name: Cohen, Sarah S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Low physical activity (PA) is linked to cancer and other diseases prevalent in racial/ethnic minorities and low-income populations. This study evaluated the PA questionnaire (PAQ) used in the Southern Cohort Community Study, a prospective investigation of health disparities between African-American and white adults.
Higher dimensional Numerical Relativity: code comparison
Creators: name: Witek, Helvi
name: Okawa, Hirotada
name: Cardoso, Vitor
name: Gualtieri, Leonardo
name: Herdeiro, Carlos
name: Shibata, Masaru
name: Sperhake, Ulrich
name: Zilhao, Miguel
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The nonlinear behavior of higher dimensional black hole spacetimes is of interest in several contexts, ranging from an understanding of cosmic censorship to black hole production in high-energy collisions. However, nonlinear numerical evolutions of higher dimensional black hole spacetimes are tremendously complex, involving different diagnostic tools and "dimensional reduction methods". In this work we compare two different successful codes to evolve Einstein's equations in higher dimensions, and show that the results of such different procedures agree to numerical precision, when applied to the collision from rest of two equal-mass black holes. We calculate the total radiated energy to be E/M=9x10^{-4} in five dimensions and E/M=8.1x10^{-4} in six dimensions.
description: 7 pages, RevTex4
Self-Reported and Objectively Measured Physical Activity among a Cohort of Postpartum Women: The PIN Postpartum Study
Creators: name: Herring, Amy H.
name: Wen, Fang
name: Evenson, Kelly R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Few studies measure physical activity objectively or at multiple time points during postpartum. We describe physical activity at 3- and 12-months postpartum among a cohort of women using both self-reported and objective measures.
Sector Activities and Lessons Learned around Initial Implementation of the United States National Physical Activity Plan
Creators: name: Evenson, Kelly R.
name: Satinsky, Sara B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: National plans are increasingly common but infrequently evaluated. The 2010 United States National Physical Activity Plan (NPAP) provided strategies to increase population levels of physical activity. This paper describes (i) the initial accomplishments of the NPAP sector teams, and (ii) results from a process evaluation to determine how the sectors operated, their cross-sector collaboration, challenges encountered, and positive experiences.
An optimized fuzzy logic model for proactive maintenance
Creators: name: Kerarmi, Abdelouadoud
name: Kamal-idrissi, Assia
name: Seghrouchni, Amal El Fallah
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Fuzzy logic has been proposed in previous studies for machine diagnosis, to overcome different drawbacks of the traditional diagnostic approaches used. Among these approaches Failure Mode and Effect Critical Analysis method(FMECA) attempts to identify potential modes and treat failures before they occur based on subjective expert judgments. Although several versions of fuzzy logic are used to improve FMECA or to replace it, since it is an extremely cost-intensive approach in terms of failure modes because it evaluates each one of them separately, these propositions have not explicitly focused on the combinatorial complexity nor justified the choice of membership functions in Fuzzy logic modeling. Within this context, we develop an optimization-based approach referred to Integrated Truth Table and Fuzzy Logic Model (ITTFLM) that smartly generates fuzzy logic rules using Truth Tables. The ITTFLM was tested on fan data collected in real-time from a plant machine. In the experiment, three types of membership functions (Triangular, Trapezoidal, and Gaussian) were used. The ITTFLM can generate outputs in 5ms, the results demonstrate that this model based on the Trapezoidal membership functions identifies the failure states with high accuracy, and its capability of dealing with large numbers of rules and thus meets the real-time constraints that usually impact user experience.
description: 16 pages in single column format, 11 figures, 12th International Conference on Artificial Intelligence, Soft Computing and Applications (AIAA 2022) December 22 ~ 24, 2022, Sydney, Australia
The LUBM4OBDA Benchmark
Creators: name: Arenas-Guerrero, Julián
Publisher: name: Zenodo
Year: 2022
Subjects: OBDA
LUBM
R2RML
RML
SPARQL
SPARQL-star
RDF
RDF-star
knowledge graphs
data integration

description: The LUBM4OBDA Benchmark is an extension of the popular LUBM Benchmark to evaluate Ontology-Based Data Access (OBDA) engines over relational databases. In addition, LUBM4OBDA considers meta knowledge (also called reification or statement-level metadata) benchmarking. The main characteristics of LUBM4OBDA are: SQL data dumps for MySQL and PostgreSQL. Data generator for custom scaling factors. Original LUBM query set (queries 1-14). Meta knowledge query set for standard reification, singleton property and SPARQL-star (queries 15-18). R2RML and RML mappings.
description: {"references": ["Guo, Yuanbo, Zhengxiang Pan, and Jeff Heflin. \"LUBM: A benchmark for OWL knowledge base systems.\" Journal of Web Semantics 3.2-3 (2005): 158-182."]}
Correlates of Self-Reported Physical Activity at 3 and 12 Months Postpartum
Creators: name: Herring, Amy H.
name: Jukic, Anne Marie
name: Evenson, Kelly R.
name: Vladutiu, Catherine J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Postpartum women are encouraged to participate in ≥150 minutes/week of moderate-intensity aerobic activity, but few women achieve this recommendation. This study sought to identify factors associated with participation in physical activity following pregnancy.
Evaluation of the Physical Activity and Public Health Course for Researchers
Creators: name: Dorn, Joan M.
name: Evenson, Kelly R.
name: Brown, David R.
name: Camplain, Ricky
name: Pate, Russell R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Since 1995, an 8-day Physical Activity and Public Health Course for Researchers has been offered yearly in the United States.
Remarks on nonlinear Electrodynamics
Creators: name: Gaete, Patricio
name: Helayël-Neto, José
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider both generalized Born-Infeld and Exponential Electrodynamics. The field-energy of a point-like charge is finite only for Born-Infeld-like Electrodynamics. However, both Born-Infeld-type and Exponential Electrodynamics display the vacuum birefringence phenomenon. Subsequently, we calculate the lowest-order modifications to the interaction energy for both classes of Electrodynamics, within the framework of the gauge-invariant path-dependent variables formalism. These are shown to result in long-range ($1/r^5$- type) corrections to the Coulomb potential. Once again, for their non-commutative versions, the interaction energy is ultraviolet finite.
description: 10 pages. arXiv admin note: substantial text overlap with arXiv:1312.5157
Inhibitory synchrony as a mechanism for attentional gain modulation
Creators: name: José, Jorge V.
name: Tiesinga, Paul H.
name: Salinas, Emilio
name: Sejnowski, Terrence J.
name: Fellous, Jean-Marc
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004

description: Recordings from area V4 of monkeys have revealed that when the focus of attention is on a visual stimulus within the receptive field of a cortical neuron, two distinct changes can occur: The firing rate of the neuron can change and there can be an increase in the coherence between spikes and the local field potential (LFP) in the gamma-frequency range (30–50 Hz). The hypothesis explored here is that these observed effects of attention could be a consequence of changes in the synchrony of local interneuron networks. We performed computer simulations of a Hodgkin-Huxley type neuron driven by a constant depolarizing current, I, representing visual stimulation and a modulatory inhibitory input representing the effects of attention via local interneuron networks. We observed that the neuron’s firing rate and the coherence of its output spike train with the synaptic inputs was modulated by the degree of synchrony of the inhibitory inputs. When inhibitory synchrony increased, the coherence of spiking model neurons with the synaptic input increased, but the firing rate either increased or remained the same. The mean number of synchronous inhibitory inputs was a key determinant of the shape of the firing rate versus current (f–I) curves. For a large number of inhibitory inputs (~50), the f–I curve saturated for large I and an increase in input synchrony resulted in a shift of sensitivity—the model neuron responded to weaker inputs I. For a small number (~10), the f–I curves were non-saturating and an increase in input synchrony led to an increase in the gain of the response—the firing rate in response to the same input was multiplied by an approximately constant factor. The firing rate modulation with inhibitory synchrony was highest when the input network oscillated in the gamma frequency range. Thus, the observed changes in firing rate and coherence of neurons in the visual cortex could be controlled by top-down inputs that regulated the coherence in the activity of a local inhibitory network discharging at gamma frequencies.
Classifying bions in Grassmann sigma models and non-Abelian gauge theories by D-branes
Creators: name: Misumi, Tatsuhiro
name: Nitta, Muneto
name: Sakai, Norisuke
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We classify bions in the Grassmann $Gr_{N_{\rm F},N_{\rm C}}$ sigma model (including the ${\mathbb C}P^{N_{\rm F}-1}$ model) on ${\mathbb R}^{1}\times S^{1}$ with twisted boundary conditions. We formulate these models as $U(N_{\rm C})$ gauge theories with $N_{\rm F}$ flavors in the fundamental representations. These theories can be promoted to supersymmetric gauge theories and further can be embedded into D-brane configurations in type II superstring theories. We focus on specific configurations composed of multiple fractional instantons, termed neutral bions and charged bions, which are identified as perturbative infrared renormalons by Ünsal and his collaborators. We show that D-brane configurations as well as the moduli matrix offer a very useful tool to classify all possible bion configurations in these models. Contrary to the ${\mathbb C}P^{N_{\rm F}-1}$ model, there exist Bogomol'nyi-Prasad-Sommerfield (BPS) fractional instantons with topological charge greater than unity (of order $N_{\rm C}$) that cannot be reduced to a composite of an instanton and fractional instantons. As a consequence, we find that the Grassmann sigma model admits neutral bions made of BPS and anti-BPS fractional instantons each of which has topological charge greater (less) than one (minus one), that are not decomposable into instanton anti-instanton and the rests. The ${\mathbb C}P^{N_{\rm F}-1}$ model is found to have no charged bions. In contrast, we find that the Grassmann sigma model admits charged bions, for which we construct exact non-BPS solutions of the field equations.
description: 62 pages, 37 figures
Survey on Birds and Nature - University of Illinois & Urbana Park District
Creators: name: Shin, Seunguk
name: Van Riper, Carena J.
name: Pollock, Henry S
name: Hauber, Mark E
Publisher: name: Zenodo
Year: 2024

description: Supplementary material (survey questionnaire) for a journal article published at Human Dimensions of Wildlife (DOI: https://doi.org/10.1080/10871209.2024.2396399)
Synthesis of nitric oxide-releasing polyurethanes with S-nitrosothiol-containing hard and soft segments
Creators: name: Coneski, Peter N.
name: Schoenfisch, Mark H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Nitric oxide (NO)-releasing polyurethanes capable of releasing up to 0.20 μmol NO cm−2 were synthesized by incorporating active S-nitrosothiol functionalities into hard and soft segment domains using thiol group protection and post-polymerization modifications, respectively. The nitrosothiol position within the hard and soft segment domains of the polyurethanes impacted both the total NO release and NO release kinetics. The NO storage and release properties were correlated to both chain extender modification and ensuing phase miscibility of the polyurethanes. Thorough material characterization is provided to examine the effects of hard and soft segment modifications on the resultant polyurethane properties.
title: Quelle est l'observance des TRMs en matière d'hygiène des mains ?
title: Damien Duret, Manon Favre, Yhoan Rey
titleType: Subtitle
title: Quelle est l'observance des TRMs en matière d'hygiène des mains ?
titleType: AlternativeTitle
Creators: name: Duret, Damien
name: Favre, Manon
name: Rey, Yohan
Publisher: name: Unknown
Year: 0
Subjects: subject: Hygiène des mains
subject: Technicien en radiologie médicale
subject: Précautions standard
subject: Infections associées aux soins
subject: Radiologie conventionnelle

description: But : L’hygiène des mains des professionnels de santé fait partie intégrante de la prise en charge des patients. C’est un élément essentiel pour limiter la propagation des infections associées aux soins. Afin de lutter contre celles-ci, l’Organisation Mondiale de la Santé (OMS) recommande la désinfection des mains lors de moments clés. Le service de radiologie peut être considéré comme un carrefour dans un hôpital, car une grande diversité de patients s’y croise, ce qui a pour conséquence d’accroître le risque infectieux. Le but de notre travail est de quantifier le taux d’observance des gestes en matière d’hygiène des mains dans un service de radiologie. Matériel et méthode : Nous avons réalisé des observations directes de la pratique de l’hygiène des mains des techniciens en radiologie médicale, lors de 80 prises en charge réparties entre 20 TRMs dans un service de radiologie conventionnel. Pour ce faire, nous avons créé des grilles d’observation basées sur les recommandations de l’OMS en matière d’hygiène des mains. Nous avons quantifié l’observance de l’hygiène des mains et avons comparé cette observance entre les techniciens masculins et féminins à l’aide du test exact de Fisher. Nous avons, de plus, quantifié la durée de ces gestes de désinfection. Résultats : Nous avons relevé une observance globale (gestes réalisés et partiellement réalisés) de 42% (± 7%). Parmi ceux-ci, 7% des gestes ont été réalisés au minimum durant 20 secondes, comme le recommande l’OMS. Les désinfections notées comme partiellement réalisées ont montré que la majorité de ces gestes étaient effectués moins de la moitié du temps nécessaire pour que celles-ci soient efficaces, soit une moyenne de six secondes. La moyenne du temps de désinfection global est, quant à elle, de dix secondes. Conclusion : Les gestes d’hygiène des mains sont réalisés environ la moitié des fois où ceux-ci sont attendus. Le résultat obtenu de l’observance global ainsi que nos autres résultats sont comparables avec plusieurs résultats trouvés dans la littérature. Entre autre, la moyenne de temps de désinfection des mains que nous avons relevé est similaire aux valeurs d’autres études. Néanmoins, en ce qui concerne l’hygiène des mains, la pratique du service étudié pourrait être améliorée.
In situ diffraction study of catalytic hydrogenation of VO2: Stable phases and origins of metallicity
Creators: name: Filinchuk, Yaroslav
name: Tumanov, Nikolay A.
name: Ban, Voraksmy
name: Ji, Heng
name: Wei, Jiang
name: Swift, Michael W.
name: Nevidomskyy, Andriy H.
name: Natelson, Douglas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Controlling electronic population through chemical doping is one way to tip the balance between competing phases in materials with strong electronic correlations. Vanadium dioxide exhibits a first-order phase transition at around 338 K between a high temperature, tetragonal, metallic state (T) and a low temperature, monoclinic, insulating state (M1), driven by electron-electron and electron-lattice interactions. Intercalation of VO2 with atomic hydrogen has been demonstrated, with evidence that this doping suppresses the transition. However, the detailed effects of intercalated H on the crystal and electronic structure of the resulting hydride have not been previously reported. Here we present synchrotron and neutron diffraction studies of this material system, mapping out the structural phase diagram as a function of temperature and hydrogen content. In addition to the original T and M1 phases, we find two orthorhombic phases, O1 and O2, which are stabilized at higher hydrogen content. We present density functional calculations that confirm the metallicity of these states and discuss the physical basis by which hydrogen stabilizes conducting phases, in the context of the metal-insulator transition.
description: 12 pages, 11 figures + 10 pages supporting material
title: Angioscan pulmonaire de la femme enceinte : efficacité du tablier de plomb pour la radioprotection du fœtus à différents stades de grossesse
title: Angioscan pulmonaire de la femme enceinte : efficacité du tablier de plomb pour la radioprotection du fœtus à différents stades de grossesse
titleType: AlternativeTitle
Creators: name: Monoke Vunda, Lauriane Balangi
name: Papinutto, Alexandra
Publisher: name: Unknown
Year: 0
Subjects: subject: CT
subject: Femme enceinte
subject: Tablier de plomb
subject: TLD
subject: Embolie pulmonaire
subject: Angioscan
subject: Foetus
subject: Radioprotection

description: Introduction : Les examens d’embolies pulmonaires chez les femmes enceintes deviennent de plus en plus courants en tomodensitométrie. Il est important d’optimiser la dose pour la radioprotection de la femme enceinte et surtout celle du foetus qui est très radiosensible. Notre étude a pour principal objectif de mettre en évidence l’efficacité du tablier de plomb pour diminuer la dose reçue par le foetus en fonction des trois trimestres de grossesse (3, 6 et 9 mois). Méthodologie : Nous avons réalisé des mesures de dose sur un scanner GE VCT 64 Healthcare, à l’aide des détecteurs thermoluminescents (TLD) placés à l’intérieur et sur un fantôme anthropomorphique féminin CIRS / ATOM. Nous avons créé un ventre pour représenter le deuxième et troisième trimestre de grossesse avec des sacs remplis d’eau. Résultats : Nous avons pu mettre en évidence une diminution de dose lors de l’utilisation du tablier de plomb. Sur l’ensemble des trimestres, l’efficacité du tablier varie entre 32 % et 40 % à l’utérus et entre 32% et 68% à l’intérieur du ventre. Nous avons aussi remarqué une diminution de dose en s’éloignant du champ primaire et avons pu constater que le tablier était plus efficace en fin de grossesse. Conclusion : Le tablier de plomb a diminué la dose pour l’ensemble de nos mesures bien que les doses à l’utérus soient basses. Nous recommandons l’utilisation du tablier dans la pratique professionnelle, surtout en fin de grossesse afin de protéger les organes situés proche du champ primaire.
Directionality between driven-dissipative resonators
Creators: name: Downing, C. A.
name: Sturges, T. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The notion of nonreciprocity, in essence when going forwards is different from going backwards, emerges in all branches of physics from cosmology to electromagnetism. Intriguingly, the breakdown of reciprocity is typically associated with extraordinary phenomena, which may be readily capitalized on in the design of (for example) nontrivial electromagnetic devices when Lorentz reciprocity is broken. However, in order to enable the exploitation of nonreciprocal-like effects in the next generation of quantum technologies, basic quantum optical theories are required. Here we present a versatile model describing a pair of driven-dissipative quantum resonators, where the relative phase difference between the coherent and incoherent couplings induces an asymmetry. The interplay between the diverse dissipative landscape - which encompasses both intrinsic losses and dissipative couplings - and the coherent interactions leads to some remarkable consequences including highly directional (or even one-way) energy transport. Our work proffers the tantalizing prospect of observing dissipation-induced quantum directionality in areas like photonics or cavity magnonics (spin waves), which may aid the design of unconventional nanoscopic devices.
description: 7 pages, 4 figures
pH-Triggered reversible morphological inversion of orthogonally-addressable poly(3-acrylamidophenylboronic acid)-block-poly(acrylamidoethylamine) micelles and their shell crosslinked nanoparticles
Creators: name: Donley, Carrie L.
name: Seetho, Kellie
name: Zou, Jiong
name: Shrestha, Ritu
name: Zhang, Shiyi
name: Wooley, Karen L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Functionally-responsive amphiphilic core-shell nanoscopic objects, capable of either complete or partial inversion processes, were produced by the supramolecular assembly of pH-responsive block copolymers, without or with covalent crosslinking of the shell layer, respectively. A new type of well-defined, dual-functionalized boronic acid- and amino-based diblock copolymer poly(3-acrylamidophenylboronic acid)30-block-poly(acrylamidoethylamine)25 (PAPBA30-b-PAEA25) was synthesized by sequential reversible addition-fragmentation chain transfer (RAFT) polymerization and then assembled into cationic micelles in aqueous solution at pH 5.5. The micelles were further cross-linked throughout the shell domain comprised of poly(acrylamidoethylamine) by reaction with a bis-activated ester of 4,15-dioxo-8,11-dioxa-5,14-diazaoctadecane-1,18-dioic acid, upon increase of the pH to 7, to different cross-linking densities (2%, 5% and 10%), forming well-defined shell cross-linked nanoparticles (SCKs) with hydrodynamic diameters of ca. 50 nm. These smart micelles and SCKs presented switchable cationic, zwitterionic and anionic properties, and existed as stable nanoparticles with high positive surface charge at low pH (pH = 2, zeta potential ~ +40 mV) and strong negative surface charge at high pH (pH = 12, zeta potential ~ −35 mV). 1H NMR spectroscopy, X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS), transmission electron microscopy (TEM), atomic force microscopy (AFM), and zeta potential, were used to characterize the chemical compositions, particle sizes, morphologies and surface charges. Precipitation occurred near the isoelectric points (IEP) of the polymer/particle solutions, and the IEP values could be tuned by changing the shell cross-linking density. The block copolymer micelles were capable of full reversible morphological inversion as a function of pH, by orthogonal protonation of the PAEA and hydroxide association with the PAPBA units, whereas the SCKs underwent only reptation of the PAPBA chain segments through the crosslinked shell of PAEA as the pH was elevated. Further, these nanomaterials also showed D-glucose-responsive properties.
On the $p$-adic cohomology of some $p$-adically uniformized varieties
Creators: name: Grosse-Klönne, Elmar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $K$ be a finite extension of ${\mathbb Q}_p$ and let $X$ be Drinfel'd's symmetric space of dimension $d$ over $K$. Let $Γ\subset {\rm SL}_{d+1}(K)$ be a cocompact discrete (torsionfree) subgroup and let ${X}_Γ=Γ\backslash {X}$, a smooth projective ${K}$-variety. In this paper we investigate the de Rham and log crystalline (log convergent) cohomology of local systems on $X_Γ$ arising from $K[Γ]$-modules. (I) We prove the monodromy weight conjecture in this context. To do so we work out, for a general strictly semistable proper scheme of pure relative dimension $d$ over a cdvr of mixed characteristic, a rigid analytic description of the $d$-fold iterate of the monodromy operator acting on de Rham cohomology. (II) In cases of arithmetical interest we prove the (weak) admissibility of this cohomology (as a filtered $(ϕ,N)$-module) and the degeneration of the relevant Hodge spectral sequence.
title: Transition à la maternité : utilisation des applications mobiles périnatales
title: Transition à la maternité : utilisation des applications mobiles périnatales
titleType: AlternativeTitle
Creators: name: Avenal, Chloé
name: Gataleta, Aurélie
name: Bouvet, Virginie
Publisher: name: Unknown
Year: 0
Subjects: subject: Pregnant women
subject: Parents
subject: Perinatal care
subject: Mobile application
subject: Mobile health
subject: Health skills
subject: Information
subject: Midwife

description: Introduction : Face à un phénomène de société connectée, les smartphones ont fait une entrée de plus en plus marquée dans les soins de maternité. L'intérêt des femmes pour les applications mobiles en période périnatale questionne sur les différentes influences de ces "apps" sur les compétences en santé des femmes ainsi que sur leur transition à la maternité. Méthodologie : Trois bases de données ont été consultées : Pubmed-Medline, CINAHL et MIDIRS. Les lancements de recherche ont permis de sélectionner trois articles. Par la suite, trois autres articles ont été repérés puis choisis en consultant les références bibliographiques de plusieurs études en lien avec le sujet. Cette revue de littérature recense trois articles quantitatifs et trois qualitatifs. Une analyse critique a été réalisée à l’aide de grilles d’analyse adaptées. Résultats et conclusions : Les applications mobiles peuvent être de véritables ressources pour les femmes. Ces nouveaux médias peuvent aider les femmes à renforcer leurs compétences en santé, dans leur transition à la maternité. Cependant, le manque de qualité des contenus de ces applications est un aspect essentiel à prendre en compte. Pour cela, les femmes et les professionnels de santé doivent faire preuve de vigilance quant à cette utilisation. Les professionnels de santé sont alors encouragés à participer à l'élaboration de ces médias, pouvant être un outil novateur pour la promotion de la santé.
Steady-State Size Distributions for Collisional Populations: Analytical Solution with Size-Dependent Strength
Creators: name: O'Brien, David P.
name: Greenberg, Richard
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The steady-state population of bodies resulting from a collisional cascade depends on how material strength varies with size. We find a simple expression for the power-law index of the population, given a power law that describes how material strength varies with size. This result is extended to the case relevant for the asteroid belt and Kuiper belt, in which the material strength is described by 2 separate power laws--one for small bodies and one for larger bodies. We find that the power-law index of the small body population is unaffected by the strength law for the large bodies, and vice versa. Simple analytical expressions describe a wave that is superimposed on the large body population because of the transition between the two power laws describing the strength. These analytical results yield excellent agreement with a numerical simulation of collisional evolution. These results will help to interpret observations of the asteroids and KBOs, and constrain the strength properties of those objects.
Complementary and Alternative Medicine (CAM) Attitudes and Competencies of Nursing Students and Faculty: Results of Integrating CAM Into the Nursing Curriculum
Creators: name: Bond, Eleanor F.
name: Swanson, Kristen M.
name: Booth-LaForce, Cathryn
name: Lan, Ming-Chih
name: Cornman, B. Jane
name: Scott, Craig S.
name: Heitkemper, Margaret M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: As part of the National Center for Complementary and Alternative Medicine (CAM) R25 Education Grant Program, a faculty development program for integrating CAM into the nursing curriculum was instituted in 2003-2006. The Integrating CAM program comprised a number of elements; the primary strategy included a series of 4-week didactic and experiential summer CAM “camps,” attended by a total of 27 faculty members. Camps were designed to influence faculty integration of CAM material into course offerings. The Integrating CAM program was evaluated via a series of faculty and student surveys regarding CAM competencies, attitudes, and perceptions. For more than half of the faculty (out of the 43 who responded), the program yielded a moderate-to-strong influence on incorporation of CAM material into course content; and moderate-to-great increases in both enthusiasm for CAM and perceived CAM knowledge gains. Students at all levels (undergraduate, masters, doctoral; n = 184) reported that their courses contained CAM content; for 70% of students, their CAM knowledge increased; for 50% of students, level of CAM interest increased. Self-reported student CAM competencies were significantly greater in 2006-2007 (n = 191) than in 2003-2004 (n = 143). Results support the strategy of broadly infusing the nursing curriculum with CAM content via faculty development.
Babylon on the bayou
Creators: name: McKeel, DéShawn
Publisher: name: No Publisher Supplied
Year: 2024

description: This thesis is a collection of poetry and prose inspired by Black life and culture in Houston, Texas. It explores the conditions and experiences of Black people in Houston. The collection follows a Black male youth speaker as he encounters community, strangers, and self in his quest to develop his sense of identity. The speaker travels across the realm of Houston, struggling against the limits of poverty, anti-black racism, gender and sexual identity, mental illness, etc. What is within this collection is an intimate view into one of the most culturally unique and diverse cities in the world that has gone mis- and underrepresented (ironic given its sprawling largeness) in the literary landscape.
Mechano-regulation of collagen biosynthesis in periodontal ligament
Creators: name: Yamauchi, Mitsuo
name: Kaku, Masaru
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Periodontal ligament (PDL) plays critical roles in the development and maintenance of periodontium such as tooth eruption and dissipation of masticatory force. The mechanical properties of PDL are mainly derived from fibrillar type I collagen, the most abundant extracellular component.