cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the nature of dark energy: the lattice Universe
Creators: name: Villata, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There is something unknown in the cosmos. Something big. Which causes the acceleration of the Universe expansion, that is perhaps the most surprising and unexpected discovery of the last decades, and thus represents one of the most pressing mysteries of the Universe. The current standard $Λ$CDM model uses two unknown entities to make everything fit: dark energy and dark matter, which together would constitute more than 95% of the energy density of the Universe. A bit like saying that we have understood almost nothing, but without openly admitting it. Here we start from the recent theoretical results that come from the extension of general relativity to antimatter, through CPT symmetry. This theory predicts a mutual gravitational repulsion between matter and antimatter. Our basic assumption is that the Universe contains equal amounts of matter and antimatter, with antimatter possibly located in cosmic voids, as discussed in previous works. From this scenario we develop a simple cosmological model, from whose equations we derive the first results. While the existence of the elusive dark energy is completely replaced by gravitational repulsion, the presence of dark matter is not excluded, but not strictly required, as most of the related phenomena can also be ascribed to repulsive-gravity effects. With a matter energy density ranging from $\sim5%$ (baryonic matter alone, and as much antimatter) to $\sim25%$ of the so-called critical density, the present age of the Universe varies between about 13 and $15\rm\,Gyr$. The SN Ia test is successfully passed, with residuals comparable with those of the $Λ$CDM model in the observed redshift range, but with a clear prediction for fainter SNe at higher $z$. Moreover, this model has neither horizon nor coincidence problems, and no initial singularity is requested. In conclusion, we have replaced all the tough problems of the current
description: 10 pages, 3 figures, accepted as a Letter to the Editor by Astrophysics and Space Science
Delamination from an adhesive sphere: Curvature-induced dewetting versus buckling
Creators: name: Box, Finn
name: Domino, Lucie
name: Corvo, Tiago Outerelo
name: Adda-Bedia, Mokhtar
name: Démery, Vincent
name: Vella, Dominic
name: Davidovitch, Benny
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Everyday experience confirms the tendency of adhesive films to detach from spheroidal regions of rigid substrates -- what is a petty frustration when placing a sticky bandage onto an elbow or knee is a more serious matter in the coating and painting industries. Irrespective of their resistance to bending, a key driver of such phenomena is Gauss' \textit{Theorema Egregium}, which implies that naturally flat sheets cannot conform to doubly-curved surfaces without developing a strain whose magnitude grows sharply with the curved area. Previous attempts to characterize the onset of curvature-induced delamination, and the complex patterns it gives rise to, assumed a dewetting-like mechanism in which the propensity of two materials to form contact through interfacial energy is modified by an elastic energy penalty. We show that this approach may characterize moderately bendable adhesive sheets, but fails qualitatively to describe the curvature-induced delamination of ultrathin films, whose mechanics is governed by their propensity to buckle under minute levels of compression. Combining mechanical and geometrical considerations, we introduce a minimal model for curvature-induced delamination that accounts for two elementary buckling motifs, shallow "rucks" and localized "folds". We predict nontrivial scaling rules for the onset of curvature-induced delamination and various features of the emerging patterns, which compare well with experimental observations. Beyond gaining control on the use of ultrathin adhesives in cutting edge technologies such as stretchable electronics, our analysis is a significant step towards quantifying the multiscale morphological complexity that emerges upon imposing geometrical and mechanical constraints on highly bendable solid objects.
description: File includes supplementary information appendix
Long-range Coulomb interactions in surface systems: a first principles description within self-consistently combined GW and dynamical mean field theory
Creators: name: Hansmann, Philipp
name: Ayral, Thomas
name: Vaugier, Loig
name: Werner, Philipp
name: Biermann, Silke
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Systems of adatoms on semiconductor surfaces display competing ground states and exotic spectral properties typical of two-dimensional correlated electron materials which are dominated by a complex interplay of spin and charge degrees of freedom. We report a fully ab initio derivation of low energy Hamiltonians for the adatom systems Si(111):X, with X=Sn, Si, C, Pb, that we solve within self-consistent combined GW and dynamical mean field theory ("GW+DMFT"). Calculated photoemission spectra are in agreement with available experimental data. We rationalize experimentally observed tendencies from Mott physics towards charge-ordering along the series as resulting from substantial long-range interactions.
description: 5 pages, 4 figures
Linum narbonense L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: L. narbonense L. Mediterrane Art. 1926 im Vispertal entdeckt (erst 1943 erkannt); dort in der Folge in starker Verbreitung und an natürlichen Standorten festgestellt. Wohl Einschleppung (oder Anpflanzung?). 3: Zwischen Visp und Stalden am Berghang unter Zeneggen, auf Felsbändern und im Gehänge- Schutt, auch rechts der Visp an der Strassenböschung;vgl. Thommen Lit. cit. Erste Nachweise: E. Oberholzer 1926, als L. alpinum (W. Koch, Zürich,briefl. 23. Okt. 1952), F. G. Stebler 1929, als L. perenne, Mme E. Studer 1941 als L. alpinum, Frl. A. Schaub1943 als L. narbonense;später viele andere Beobachter.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
PERFIL DOS EDUCADORES ESPECIALIZADOS EM ATENDIMENTO A ALUNOS COM UMA OU MAIS DEFICIÊNCIAS NA REDE MUNICIPAL DE IPORÁ-GO
Creators: name: Josiane Silva Santos, Silva Santos
name: Lorena Fernandes Sousa, Fernandes Sousa
name: Cláudia Ribeiro de Lima, Ribeiro de Lima
name: Cleusa Joana de Lima Martins, Joana de Lima Martins
name: Ana Cláudia de Faria Lima, de Faria Lima
name: Bianca Christofoli Freitas Queiroz, Freitas Queiroz
name: Eloíza Romeiro Cunha, Romeiro Cunha
name: Kaio José Silva Maluf Franco, Silva Maluf Franco
name: Tales Gabriel Barros e Bittencourt, Barros e Bittencourt
name: Márcio Marino Navas Filho, Marino Navas Filho
Publisher: name: Zenodo
Year: 2023
Subjects: Diversidade; Educação inclusiva; Experiência educacional.

description: Por compreender que a escola precisa entender a diversidade dos alunos e agir na defesa de seus direitos à integração de forma a promover uma reforma que torne possível uma educação de qualidade para todos, sem nenhum tipo de exclusão, propusemos a realização desta pesquisa de campo, com o intuito de conhecer o perfil dos profissionais da educação que tem atuado no Atendimento Educacional Especializado dos alunos com uma ou mais deficiências na rede municipal do município de Iporá. Os métodos e as técnicas empregados na realização desta pesquisa foram baseados na pesquisa documental de fonte primária, através do uso de documentos oficiais e de fonte secundária baseada na pesquisa bibliográfica. A coleta de dados utilizou-se a observação direta extensiva a partir da aplicação de um questionário. Este instrumento foi respondido por professoras que atuam nas salas de recursos multifuncionais em escolas da rede municipal de Iporá. A partir da análise dos resultados percebe-se que as professoras têm uma vasta experiência na área da educação, tendo a maioria delas também tempo considerável de atuação na educação inclusiva. Notou-se que o sentimento da maioria é por mais cursos dentro da área da educação inclusiva que venham de encontro com suas necessidades diárias e que colaborem na execução de sua proposta pedagógica diante das diversas deficiências.
Laminar-turbulent separatrix in a boundary layer flow
Creators: name: Biau, Damien
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The transitional boundary layer flow over a flat plate is investigated. The boundary layer flow is known to develop unstable Tollmien-Schlichting waves above a critical value of the Reynolds number. However, it is also known that this transition can be observed for sub-critical Reynolds numbers. In that case, the basin of attraction of the laminar state coexists with the sustained turbulence. In this article, the trajectory on the separatrix between these two states is simulated. The state on the separatrix is independent from the initial condition and is dynamically connected to both the laminar flow and the turbulence. Such an edge state provides information regarding the basic features of the transitional flow. The solution takes the form of a low speed streak, flanked by two quasi-streamwise sinuous vortices. The shape of the streaks is close to that simulated with the linear optimal perturbation method. This solution is compared to existing results concerning streak breakdown. The simulations are realized in a temporal framework for a local boundary layer, with periodic boundary conditions in the streamwise direction. A dedicated model, based on a scale separation, is presented. The mean flow is a solution of the Prandtl boundary layer equations while the superposed small-scale fluctuations are a solution of the periodic Navier-Stokes equations. The model is validated with turbulent flow simulations and satisfactorily reproduces the physical characteristics of a boundary layer flow, especially in the outer region, where external fluid is entrained toward the boundary layer.
Root of unity asymptotics for Schur indices of 4d Lagrangian theories
Creators: name: Eleftheriou, Giorgos
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Schur index of a $4$ dimensional $\mathcal{N}=2$ superconformal field theory counts (with sign) bosonic and fermionic states that preserve $4$ supercharges. We consider the Schur indices of $4$d $\mathcal{N}=4$ super Yang-Mills and $\mathcal{N}=2$ circular quiver gauge theories with gauge groups $U(N)$ or $SU(N)$. We calculate the exponentially dominant part of their asymptotic expansions as the index parameter $q$ approaches any root of unity. We find that some of the indices exhibit ``small" ($\mathcal{O}(N^0)$ as $N \rightarrow \infty$) exponential growth, which is much smaller than an $\mathcal{O}(N^2)$ exponential growth of states that is indicative of a black hole. This implies that the indices do not capture a growth of states that would correspond to a supersymmetric black hole that preserves 4 supercharges in the holographic dual AdS theory. Interestingly, the exponentially dominant part in the Schur asymptotics we consider, depends on the parity of the rank $N$.
title: Who Receives More Family Related Support in the Workplace? A Meta-Analysis of Gender Differences in Family Related Support
Creators: name: Jalil, Daroon M.
Publisher: name: Old Dominion University Libraries
Year: 2019

description: The purpose of the current study was to meta-analytically estimate if gender differences exist in the provision of family related support in the workplace. Gender differences are of particular interest in the realm of family related support in the workplace because they lie at the intersection of prescribed gender roles for both men and women at home and work. Family related support plays an integral role in an employees’ willingness to utilize family friendly policies that organizations provide to meet the increasing needs of employees to balance work and family demands. Though it may seem like a simple research question, theoretical models provide conflicting predictions on the presence of gender differences and the empirical evidence is inconsistent. Hunter and Schmidt’s (2004) meta-analytical procedures were employed to test for the presence of gender differences in family related support and potential moderators. Results indicate that female employees receive significantly more family related support than male employees in the workplace. Additionally, significant moderators of the gender difference were GDP, unemployment rate, masculinity, and time orientation. Theoretical and practical implications regarding the role that gender roles play in support and work-family conflict are discussed.
A Survey of Routing Techniques for Mobile Collaborative Virtual Environment Applications
Creators: name: Zarrad, Anis
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Due to the rapidly increasing usage of personal mobile devices and the need of executing CVE applications in environments that have no previous network infrastructure, Mobile Collaborative Virtual Environments (MCVEs) systems will become ubiquitous in the future. In such systems, we enable users to act and interact in three dimensional world shared through their mobile devices in an ad-hoc network (MANET). A handful of interesting MCVE applications have been developed in a variety of domains, ranging from multiplayer games to virtual cities, virtual shopping malls, and various training simulations (i.e. military, emergency preparedness, Education, Medicine, etc.). The designers of such applications rely solely on network overhead, latency, limited bandwidth, and mobile device limitation. In this survey we present a number of ways to classify and analysis routing techniques that have been applied in Mobile Collaborative Environment Applications.
Standardisierte Persönlichkeitsdiagnostik und Behandlungsevaluation : methodenkritische Analyse der Handhabung im Strafvollzug
Creators: name: Lauterbach, Oliver
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Youth prison system
subject: Personality assessment
subject: Treatment evaluation
subject: Jugendstrafvollzug
subject: Persönlichkeitsdiagnostik
subject: Behandlungsevaluation
subject: Dewey Decimal Classification::100 | Philosophie::150 | Psychologie

description: [no abstract]
HOXB4-vermittelte Herstellung und Expansion muriner hämatopoetischer Stammzellen in vitro, zur dauerhaften Rekonstitution immunkompetenter Mäuse
Creators: name: Lesinski, Dietrich Armin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: In vitro differentiation
subject: embryonic stem cells
subject: hematopoietic stem cells
subject: multilineage engraftment
subject: immunocompetent mice
subject: feeder free
subject: serum free
subject: stromal free
subject: transient expression
subject: HOXB4
subject: in vitro Differenzierung
subject: embryonale Stammzellen
subject: hämatopoetische Stammzellen
subject: LT-HSZ
subject: HSPZ
subject: ESZ-HSZ
subject: iPS
subject: immunkompenente Mäuse
subject: stromafrei
subject: serumfrei
subject: transiente Expression
subject: Tet-System
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Thermomagnetic instabilities in Nb films deposited on glass substrates
Creators: name: Abaloszewa, I.
name: Cieplak, M. Z.
name: Abaloszew, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this work, we provide a systematic study of the magnetic field penetration process and avalanche formation in niobium films of different thicknesses deposited on glass substrates. The research was carried out by means of direct visualization of the magnetic flux using magneto-optical imaging. The experimental data were compared with theoretical predictions for the development of thermomagnetic instabilities in the form of finger or dendritic flux avalanches in thin films. Analysis of the temperature and thickness dependence of threshold magnetic field at which superconductor first becomes unstable, as well as the flux penetration depth corresponding to this field allows the evaluation of the thermal and superconducting parameters of the studied films, such as heat transfer coefficient across the film-substrate boundary, thermal conductivity, critical current density.
description: 5 pages, 4 figures
Transition from strong to ultra-strong coupling regime in mid-infrared metal-dielectric-metal cavities
Creators: name: Jouy, Pierre
name: Vasanelli, Angela
name: Todorov, Yanko
name: Delteil, Aymeric
name: Biasiol, Giorgio
name: Sorba, Lucia
name: Sirtori, Carlo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated the transition from strong to ultra-strong coupling regime between a mid-infrared intersubband excitation and the fundamental mode of a metal-dielectric-metal microcavity. The ultra-strong coupling regime is demonstrated up to room temperature for a wavelength of $11.7 μ$m by using 260 nm thick cavities, which impose an extreme sub-wavelength confinement. By varying the doping of our structures we show that the experimental signature of the transition to the ultra-strong coupling regime is the opening of a photonic gap in the polariton dispersion. The width of this gap depends quadratically on the ratio between the Rabi and intersubband transition energies.
The 10830 He I Absorption Line Among Metal-Poor Subdwarfs
Creators: name: Smith, Graeme H.
name: Dupree, Andrea K.
name: Strader, Jay
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spectra of the He I 10830 line have been obtained for 23 metal-poor stars, the majority of which are dwarfs ranging in metallicity from [Fe/H] = -2.1 to -0.8. The data were acquired with the NIRSPEC spectrograph on the Keck 2 telescope. Most of these subdwarfs and dwarfs are found to exhibit a He I absorption line indicative of the presence of chromospheres. The equivalent width of the 10830 absorption profile is generally less than 70 mA, and covers a range similar to that found in solar metallicity stars of low activity. Among the subdwarfs the He I equivalent width does not correlate with either [Fe/H] metallicity or (B-V) color. Some evidence for asymmetric profiles is found among metal-poor dwarfs, but not the high-speed blue-shifted absorption displayed by some metal-poor red giants.
description: 8 pages, published in PASP
Prediction of thermomagnetic and thermoelectric properties for novel materials and systems
Creators: name: Varlamov, Andrey
name: Kavokin, Alexey
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We express the link between conductivity and coefficients of Seebeck, Nernst-Ettingshausen, Peltier, and Thompson and Reghi-Leduc via the temperature derivative of the chemical potential of a system. These general expressions are applied to three-, two- and one-dimensional systems of charge carriers having a parabolic or Dirac spectrum. The method allows for predicting thermoelectric and thermomagnetic properties of novel materials and structures.
description: 5 pages, 2 figures
The toroidal Hausdorff dimension of 2d Euclidean quantum gravity
Creators: name: Ambjorn, Jan
name: Budd, Timothy
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The lengths of shortest non-contractible loops are studied numerically in 2d Euclidean quantum gravity on a torus coupled to conformal field theories with central charge less than one. We find that the distribution of these geodesic lengths displays a scaling in agreement with a Hausdorff dimension given by the formula of Y. Watabiki.
description: 13 pages, 4 figures
Scaling forms for Relaxation Times of the Fiber Bundle model
Creators: name: Roy, Chandreyee
name: Kundu, Sumanta
name: Manna, S. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using extensive numerical analysis of the Fiber Bundle Model with Equal Load Sharing dynamics we studied the finite-size scaling forms of the relaxation times against the deviations of applied load per fiber from the critical point. Our most crucial result is we have not found any $\ln (N)$ dependence of the average relaxation time $\langle T(σ,N) \rangle$ in the precritical state. The other results are: (i) The critical load $σ_c(N)$ for the bundle of size $N$ approaches its asymptotic value $σ_c(\infty)$ as $σ_c(N) = σ_c(\infty) + AN^{-1/ν}$. (ii) Right at the critical point the average relaxation time $\langle T(σ_c(N),N) \rangle$ scales with the bundle size $N$ as: $\langle T(σ_c(N),N) \rangle \sim N^η$ and this behavior remains valid within a small window of size $|Δσ| \sim N^{-ζ}$ around the critical point. (iii) When $1/N < |Δσ| < 100N^{-ζ}$ the finite-size scaling takes the form: $\langle T(σ,N) \rangle / N^η \sim {\cal G}[\{σ_c(N)-σ\}N^ζ]$ so that in the limit of $N \to \infty$ one has $\langle T(σ) \rangle \sim (σ- σ_c)^{-τ}$. The high precision of our numerical estimates led us to verify that $ν= 3/2$, conjecture that $η= 1/3$, $ζ= 2/3$ and therefore $τ= 1/2$.
description: 8 pages, 11 figures
title: Middle Pleistocene flint finds from Bilzingsleben (Lkr. Sömmerda)
Creators: name: Liebermann, Carmen
name: Pasda, Clemens
Publisher: name: University Library Heidelberg
Year: 2016

description: Die Silexfunde aus der mittelpleistozänen Travertinfundstelle Bilzingsleben werden einer Revision unterzogen. Hierzu wird die Forschungsgeschichte erörtert und die Ergebnisse jüngster Ausgrabungen vorgestellt, die explizit dem geologischen Kontext gewidmet waren und ohne Selektion artefaktähnlicher Stücke vonstattengegangen sind. Als Ergebnis wird eine Grauzone formuliert, deren äußere Grenzen eindeutige Nichtartefakte und artefaktähnliche Exemplare bilden, die jedoch insgesamt diffus bleibt, qualitativ nicht zu beurteilen und damit auch quantitativ nicht zu erfassen ist.
description: Flint finds from the Middle Pleistocene travertine site at Bilzingsleben are revised. A discussion of the history of research in this context, and findings of recent excavations are presented. These campaigns targeted the geological context and
did not select artefact-type objects. This resulted in a twilight zone between certainly identified non-artefacts and artefact- type exemplars, a zone which remains diffuse and resists qualitative, and thus also quantitative assessment.
Constraints on Modified Gravity from ACT and SPT
Creators: name: Marchini, Andrea
name: Melchiorri, Alessandro
name: Salvatelli, Valentina
name: Pagano, Luca
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT) have recently provided new and precise measurements of the Cosmic Microwave Background anisotropy damping tail. This region of the CMB angular spectra, thanks to the angular distortions produced by gravitational lensing, can probe the growth of matter perturbations and provide a test for general relativity. Here we make use of the ACT and SPT power spectrum measurements (combined with the recent WMAP9 data) to constrain f(R) gravity theories. Adopting a parametrized approach, we obtain an upper limit on the lengthscale of the theory of B_0 < 0.86 at 95% c.l. from ACT, while we get a significantly stronger bound from SPT with B_0 < 0.14 at 95% c.l..
description: 6 pages, 4 figures, some sentences corrected
Rosa graveolens
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: R. graveolens L. ssp. hortensis (Miller) Gams (R. hortensis Miller) Cat. 62. Der Fundort Pfynwald ist in Distr. 3 zu stellen. Kultiviert und an felsigen Orten, in Rebbergen usw. eingebürgert. BRIQUET (Lit. 1899, S. 84) möchte freilich die Vorkommnisse im Unterwallis (St-Maurice-Vérossaz) für urwüchsig halten. 2:St-Léonard (Christ); zwischen Veyras und Venthône (Wille); unter Mettjen (bei Niedergampel), etwa 700 m (Terretaz und M. Mutrux). - 3: Isérables, Mauer (G. Schertenleib); Bieudron (Mitteilung eines Einheimischen, 1938, an Becherer und Thommen).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
The inverse Galois problem for PSL_2(F_p)
Creators: name: Zywina, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 12F12 (Primary) 14J27, 11G05 (Secondary)

description: We show that the simple group PSL_2(F_p) occurs as the Galois group of an extension of the rationals for all primes p>3. We obtain our Galois extensions by studying the Galois action on the second etale cohomology groups of a specific elliptic surface.
title: Examining Trait Mindfulness as a Moderator of the Mediating Relationship Between Social Anxiety, Coping Motives, and Substance-Related Consequences
Creators: name: Raeder, Cody A.
Publisher: name: Old Dominion University Libraries
Year: 2019

description: The present research examined the mediating relationship between social anxiety, drinking to cope with social anxiety, and alcohol-related consequences. Additionally, this study examined the mediating relationship between social anxiety, using cannabis to cope with social anxiety and cannabis-related consequences. Furthermore, this study examined whether or not trait mindfulness exhibited a moderating effect on both of these mediation relationships which have been previously observed in the literature. The study consisted of students recruited through the psychology research participant pool at a mid-sized southeastern university. Two data sets were created based on type of substance use (alcohol or cannabis). The majority of participants in each sample were female (n = 166, 68.3% for alcohol; n = 168, 67.5% for cannabis) and reported a mean age of 21. Participants completed measures of social anxiety, alcohol use, cannabis use, drinking to cope with social anxiety, using cannabis to cope with social anxiety, alcohol-related consequences, cannabis-related consequences, and trait mindfulness. The present study found partial support for The Biopsychosocial model of social anxiety and substance use, as well as cognitive models of both social anxiety and substance abuse. In particular, it was found that the relationship between social anxiety and alcohol-related consequences was mediated by drinking to cope with social anxiety. This same pattern of mediation was also observed in the relationship between social anxiety and cannabis-related consequences, which was mediated by using cannabis to cope with social anxiety. Further, this study examined relationships between trait mindfulness and both alcohol- and cannabis-related variables, including alcohol and cannabis use, using alcohol and cannabis to cope, and alcohol- and cannabis-related consequences. It was found that trait mindfulness moderated the mediating effect of using cannabis to cope with social anxiety on the relationship between social anxiety and cannabis related problems.
Heat Transport in Confined Strongly Coupled 2D Dust Clusters
Creators: name: Kudelis, Giedrius
name: Thomsen, Hauke
name: Bonitz, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Dusty plasmas are a model system for studying strong correlation. The dust grains' size of a few micro-meters and their characteristic oscillation frequency of a few hertz allows for an investigation of many particle effects on an atomic level. In this article, we model the heat transport through an axially confined 2D dust cluster from the center to the outside. The system behaves particularly interesting since heat is not only conducted within the dust component but also transfered to the neutral gas. Fitting the analytical solution to the obtained radial temperature profiles allows to determine the heat conductivity $\kheat$. The heat conductivity is found to be constant over a wide range of coupling strengths even including the phase transition from solid to liquid here, as it was also found in extended systems by V. Nosenko et al. in 2008 \cite{PhysRevLett.100.025003}
Polygala chamaebuxus L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: P. Chamaebuxus L. Cat. 4l. Obere Höhengrenze festzustellen. Die im Cat. gegebenen Zahlen sind einzuziehen: die von Tis- SIÈRE für den Gr. St. Bernhard genannte Zahl 2400 m betrifft die italienische Seite des Passes; für die Crête de Thyon (Hérémence) - bei JACCARD: «2200-2480 m» - hatte RION, auf den die Angabe zu- rückgeht, keine Höhe angegeben. Sichere hohe Stelle aus neuerer Zeit: Rappental (Goms), 2250 m (B. C.W.). Var. grandiflora Gaudin - l: Mont-Ravoire (F.). Var. rhodopteroides Lüscher - 3: Mont-Chemin bei Martigny (Closuit).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
On the coset structure of a skew lattice
Creators: name: Costa, Joao Pita
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The class of skew lattices can be seen as an algebraic category. It models an algebraic theory in the category of Sets where the Green's relation D is a congruence describing an adjunction to the category of Lattices. In this paper we will discuss the relevance of this approach, revisit some known decompositions and relate the order structure of a skew lattice with its coset structure that describes the internal coset decomposition of the respective algebra.
description: Demonstratio Mathematica Vol. XLIV No. 4 (2011)
Fluctuational-electrodynamic theory and dynamics of heat transfer in multiple dipolar systems
Creators: name: Messina, Riccardo
name: Tschikin, Maria
name: Biehs, Svend-Age
name: Ben-Abdallah, Philippe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A general fluctuational-electrodynamic theory is developed to investigate radiative heat exchanges between objects which are assumed small compared with their thermal wavelength (dipolar approximation) in N-body systems immersed in a thermal bath. This theoretical framework is applied to study the dynamic of heating/cooling of three-body systems. We show that many-body interactions allow to tailor the temperature field distribution and to drastically change the time scale of thermal relaxation processes.
description: 12 pages, 3 figures
Mixed Quantum-Classical Method For Fraud Detection with Quantum Feature Selection
Creators: name: Grossi, Michele
name: Ibrahim, Noelle
name: Radescu, Voica
name: Loredo, Robert
name: Voigt, Kirsten
name: Von Altrock, Constantin
name: Rudnik, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This paper presents a first end-to-end application of a Quantum Support Vector Machine (QSVM) algorithm for a classification problem in the financial payment industry using the IBM Safer Payments and IBM Quantum Computers via the Qiskit software stack. Based on real card payment data, a thorough comparison is performed to assess the complementary impact brought in by the current state-of-the-art Quantum Machine Learning algorithms with respect to the Classical Approach. A new method to search for best features is explored using the Quantum Support Vector Machine's feature map characteristics. The results are compared using fraud specific key performance indicators: Accuracy, Recall, and False Positive Rate, extracted from analyses based on human expertise (rule decisions), classical machine learning algorithms (Random Forest, XGBoost) and quantum based machine learning algorithms using QSVM. In addition, a hybrid classical-quantum approach is explored by using an ensemble model that combines classical and quantum algorithms to better improve the fraud prevention decision. We found, as expected, that the results highly depend on feature selections and algorithms that are used to select them. The QSVM provides a complementary exploration of the feature space which led to an improved accuracy of the mixed quantum-classical method for fraud detection, on a drastically reduced data set to fit current state of Quantum Hardware.
description: 11 pages, 12 figures, 9 tables
title: Tsunami threat level database update
Creators: name: Gusman, Aditya R.
name: Wang, Xiaoming
name: Power, William L.
name: Lukovic, Biljana
name: Mueller, Christof
name: Burbidge, David R.
Publisher: name: GNS Science
Year: 2019

description: GNS Science had previously developed a tsunami scenario database with threat level maps for New Zealand from earthquake sources around the Pacific Ocean that can be used for tsunami early warning purposes. Here we describe the method and assumptions used to create an updated version of the database. One of the main improvements is that we have greatly increased the number of scenarios in the new database. Scenarios now exist down to lower magnitudes for all source zones and we have included subduction zones near New Zealand in the database for the first time. The fault parameters for all scenarios have been updated based on the latest subduction interface models. Finally, we have also saved more data from each scenario than previously, including the tsunami travel times and tsunami waveforms at the existing set of DART and tide gauge stations. These changes more than doubled the size of the database, from 336 scenarios to 723 scenarios, and provide much more information about each of them. The addition of the new saved outputs will allow more information to be used to constrain the best choice of threat map during an event and can also be used to provide additional information to emergency managers if needed. (auth)
Magnetic excitation spectrum of Na2IrO3 probed with resonant inelastic x-ray scattering
Creators: name: Gretarsson, H.
name: Clancy, J. P.
name: Singh, Yogesh
name: Gegenwart, P.
name: Hill, J. P.
name: Kim, Jungho
name: Upton, M. H.
name: Said, A. H.
name: Casa, D.
name: Gog, T.
name: Kim, Young-June
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The low energy excitations in Na2IrO3 have been investigated using resonant inelastic x-ray scattering (RIXS). A magnetic excitation branch can be resolved, whose dispersion reaches a maximum energy of about 35 meV at the Γ-point. The momentum dependence of the excitation energy is much larger along the Γ-X direction compared to that along the Γ-Y direction. The observed dispersion relation is consistent with a recent theoretical prediction based on Heisenberg-Kitaev model. At high temperatures, we find large contributions from lattice vibrational modes to our RIXS spectra, suggesting that a strong electron-lattice coupling is present in Na2IrO3.
description: 5 pages, 3 figures
A frequency determination method for digitized NMR signals
Creators: name: Yan, H.
name: Li, K.
name: Khatiwada, R.
name: Smith, E.
name: Snow, W. M.
name: Fu, C. B.
name: Chu, P. -H.
name: Gao, H.
name: Zheng, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We present a high precision frequency determination method for digitized NMR FID signals. The method employs high precision numerical integration rather than simple summation as in many other techniques. With no independent knowledge of the other parameters of a NMR FID signal (phase $ϕ$, amplitude $A$, and transverse relaxation time $T_{2}$) this method can determine the signal frequency $f_{0}$ with a precision of $1/(8π^{2}f_{0}^{2}T_{2}^{2})$ if the observation time $T$ is long enough. The method is especially convenient when the detailed shape of the observed FT NMR spectrum is not well defined. When $T_{2}$ is $+\infty$ and the signal becomes pure sinusoidal, the precision of the method is $3/(2π^{2}f_{0}^{2}T^{2})$ which is one order more precise than a typical frequency counter. Analysis of this method shows that the integration reduces the noise by bandwidth narrowing as in a lock-in amplifier, and no extra signal filters are needed. For a pure sinusoidal signal we find from numerical simulations that the noise-induced error in this method reaches the Cramer-Rao Lower Band(CRLB) on frequency determination. For the damped sinusoidal case of most interest, the noise-induced error is found to be within a factor of 2 of CRLB when the measurement time $T$ is a few times larger than $T_{2}$.We discuss possible improvements for the precision of this method.
Unsupervised Interpretable Learning of Phases From Many-Qubit Systems
Creators: name: Sadoune, Nicolas
name: Giudici, Giuliano
name: Liu, Ke
name: Pollet, Lode
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Experimental progress in qubit manufacturing calls for the development of new theoretical tools to analyze quantum data. We show how an unsupervised machine-learning technique can be used to understand short-range entangled many-qubit systems using data of local measurements. The method successfully constructs the phase diagram of a cluster-state model and detects the respective order parameters of its phases, including string order parameters. For the toric code subject to external magnetic fields, the machine identifies the explicit forms of its two stabilizers. Prior information of the underlying Hamiltonian or the quantum states is not needed; instead, the machine outputs their characteristic observables. Our work opens the door for a first-principles application of hybrid algorithms that aim at strong interpretability without supervision.
description: 9 pages, 7 figures
2D kinematics of the edge-on spiral galaxy ESO 379-G006
Creators: name: Rosado, M.
name: Gabbasov, R. F.
name: Repetto, P.
name: Fuentes-Carrera, I.
name: Amram, P.
name: Martos, M.
name: Hernandez, O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a kinematical study of the nearly edge-on galaxy ESO 379-G006 that shows the existence of extraplanar ionized gas. With Fabry-Perot spectroscopy at H-alpha, we study the kinematics of ESO 379-G006 using velocity maps and position-velocity diagrams parallel to the major and to the minor axis of the galaxy. We build the rotation curve of the disk and discuss the role of projection effects due to the fact of viewing this galaxy nearly edge-on. The twisting of the isovelocities in the radial velocity field of the disk of ESO 379-G006 as well as the kinematic asymmetries found in some position-velocity diagrams parallel to the minor axis of the galaxy suggest the existence of deviations to circular motions in the disk that can be modeled and explained with the inclusion of a radial inflow probably generated by a bar or by spiral arms. We succeeded in detecting extraplanar Diffuse Ionized Gas in this galaxy. At the same time, from the analysis of position-velocity diagrams, we found some evidence that the extraplanar gas could lag in rotation velocity with respect to the midplane rotation.
description: 61 pages, 15 figures. Accepted for publication in AJ
Ethical issues for involuntary psychiatric treatment: a scoping review
Creators: name: Laranjeira, Carlos
name: Laureano, Cláudio
name: Rego, Francisca
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medicine and Health Sciences

description: This scoping review aims to map, systematize, and synthesize the ethical foundations used in the literature to justify or reject the use of involuntary psychiatric treatment. We then examine the associated risks and address ways and measures used to reduce, replace, and improve the negative impact of mandatory treatment in different clinical settings. We also summarize and analyse the research results and highlight gaps in the evidence base. Our findings will provide a comprehensive synthesis of the current literature and offer a detailed informative basis for ethically-aligned ways to use the involuntary psychiatric treatment.
title: The Alfalfa Insecticide Management (AIM) Toolkit: Linking insecticide fate modelling with alfalfa pest and beneficial insect toxicity endpoints
Creators: name: Hageman, Kimberly
Publisher: name: Utah State University
Year: 2019

description: By modeling how long it takes for pesticide residuals on foliage to reach toxic thresholds for insects, well-informed decisions for the timing of applications for pest control, protection of beneficial insects, and introduction of pollinators can be made and crop production optimized.
LKACAT
Creators: name: Liusiqi
Publisher: name: Zenodo
Year: 2022

description: This is the code of LKACAT, where train.py, resplit_birsd400.py and main.py are the training and testing code, the code for repartitioning the birds400 dataset, and the code for building the model, respectively. coatNet.py, LKACAT.py, SE_LKACAT.py, SE_ ResNet50+SE_ ResNext50.py, Van_Tiny.py are the codes of our proposed model and some classical models.
Barriers and Enhancers of Data Quality in Health Sector of Somali Regional State, Eastern Ethiopia
Creators: name: Tesfaye Gobena
name: Berhanie, Daniel
name: Hirbo Shore
name: Abera Kenay
name: Yakob Wondirad
name: Ayanle, Mohammed
Publisher: name: The Ethiopian Journal of Health Development
Year: 2023

description: Abstract Background: Health data quality and use remain weak within the health sectors of low and middle-income countries (LMICs). Health data quality is so important to improve health management and prevailing practices. However, it is not satisfactory in the health sector of Ethiopia, including in public health facilities of Somali Regional State. Thus, this qualitative study aimed to explore the potential barriers and enhancers of health data quality in the health sector of Somali Regional State, Ethiopia. Methods: A qualitative case study design with an in-depth interview technique was conducted as part of the baseline assessment of an implementation research in Jigjiga Woreda of Somali regional State, Ethiopia. The study was conducted in three randomly selected public health facilities, Woreda Health Office and Somali Regional Health Bureau. Data were collected from 17 purposively selected key informants using in-depth interviews; and observations of facilities and health administration units. Data were transcribed, coded, and analyzed using thematic content analysis to identify pre-defined themes. Open code version 3.4 was used for coding data and categorizing codes as thematic areas to identify barriers and enhancers of data quality in sector. Results: Behavioral and technique-related factors were the most dominant barriers to data quality in the study setting. Of these, low commitment to data recording and compilation, negligence of the workforce on recording, lack and inadequate training on Health Information System, low value given to data, and low motivation of the workers. Additionally, lack of accountability for data recording and documentation, lack of Performance Monitoring Team commitment and regular meetings, and lack of regular supervision from PMT and immediate supervisors were the main institutional barriers to data quality in the region. Conclusions: Behavioral and technique-related factors were the most dominant barriers to ensuring data quality in the study setting. Thus, tailored training on data recording and documentation should be given to the workers; and PMT should give support and feedback to the workforce, continuously. It is also relevant to design an intervention strategy to intervene in the contextual problems regularly and take immediate corrective action. [Ethiop. J. Health Dev. 2022;36 (SI-2)] Keywords: health data quality, Barriers, enhancers, implementation research, formative assessment, public health facilities, Jigjiga, Ethiopia
description: The Ethiopian Journal of Health Development , Vol. 36 No. 2 (2022): Special Issue 2
Rationality of real conic bundles with quartic discriminant curve
Creators: name: Ji, Lena
name: Ji, Mattie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E08 (Primary), 14P25, 14M20, 14D06 (Secondary)

description: We study real double covers of $\mathbb P^1\times\mathbb P^2$ branched over a $(2,2)$-divisor, which have the structure of a conic bundle threefold with smooth quartic discriminant curve via the second projection. In each isotopy class of smooth plane quartics, we construct examples where the total space of the conic bundle is rational. For five of the six isotopy classes we construct $\mathbb C$-rational examples that have obstructions to rationality over $\mathbb R$, and for the sixth class, we show that the models we consider are all rational. Moreover, for three of the five classes with irrational members, we give characterizations of rationality using the topology of the real locus and the intermediate Jacobian torsor obstruction of Hassett--Tschinkel and Benoist--Wittenberg. The double cover models we consider were introduced and previously studied by S. Frei, S. Sankar, B. Viray, I. Vogt, and the first author.
description: 23 pages, 4 figures. In IMRN. v2: Minor edits to Section 3.3 and Remark 11 of the published version to reflect that Pic^1_Gamma always has real points