cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of colloids in providing a source of iron to phytoplankton
Creators: name: Wells, Mark L.
Publisher: name: University of British Columbia
Year: 2010

description: Iron-rich colloidal material was found to be associated with diatoms in the natural environment. To determine if this association could be important to the organism, the supply of iron from colloidal forms to phytoplankton was investigated. Laboratory bioassays with the marine diatom Thalassiosira pseudonana demonstrated that freshly precipitated colloidal iron could readily support diatom growth. However, when these colloids were aged or subjected to short periods of heating, the iron availability was drastically reduced. The iron availabilty was not increased with addition of the complexing agent EDTA. The reduction in availability appears to be linked to increased thermodynamic stability of the colloidal hydrous ferric oxides. The probable mechanism of this reduction is decreased colloidal dissolution rates. The supply of iron from colloids to phytoplankton appears to be determined by the chemistry of the colloidal iron material rather than by the physical association of colloidal iron and cell walls.
Gauge-invariant perturbation expansion in powers of electric charge for the density-of-states of a network model for charged-particle motion in a uniform background magnetic flux density
Creators: name: Haldane, F. D. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An explicitly-gauge-invariant expansion in powers of $e/\hbar$ times the magnetic flux density is formally obtained for the density of states (as characterized by the trace of the resolvent $\widehat G$ = $(ω- \hat h)^{-1}$) of a charged particle moving on a Hermitian quantum network that is embedded in a Euclidean background that supports a uniform magnetic flux density. The explicit expressions, given here up to third order in the flux density, are also valid for the ``local trace'' (the trace of $\widehat P_i \widehat G$, where $\widehat P_i$ is the projector on a network node), and do not appear to have been previously given.
description: 20 pages, 0 figures; to appear in J. Math. Phys
Quantifying the Cosmic Web I: The large-scale halo ellipticity-ellipticity and ellipticity-direction correlations
Creators: name: Lee, Jounghun
name: Springel, Volker
name: Pen, Ue-Li
name: Lemson, Gerard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The formation of dark matter halos tends to occur anisotropically along the filaments of the Cosmic Web, which induces both ellipticity-ellipticity (EE) correlations between the shapes of halos, as well as ellipticity-direction (ED) cross-correlations between halo shapes and the directions to neighboring halos. We analyze the halo catalogue and the semi-analytic galaxy catalogue of the recent Millennium Run Simulation to measure the EE and ED correlations numerically at four different redshifts (z=0, 0.5, 1 and 2). For the EE correlations, we find that (i) the major-axis correlation is strongest while the intermediate-axis correlation is weakest; (ii) the signal is significant at distances out to 10 Mpc/h; (iii) the signal decreases as z decreases; (iv) and its behavior depends strongly on the halo mass scale, with larger masses showing stronger correlations at large distances. For the ED correlations, we find that (i) the correlations are much stronger than the EE correlations, and are significant even out to distances of 50 Mpc/h; (ii) the signal also decreases as z decreases; (iii) and it increases with halo mass at all distances. We also provide empirical fitting functions for the EE and ED correlations. The EE correlations are found to scale linearly with the linear density correlation function, xi(r). While the ED cross-correlation is found to scale as xi^{1/2}(r) at large distances beyond 10 Mpc/h. The best-fit values of the fitting parameters for the EE and the ED correlations are all determined through chi^{2}-statistics. Our results may be useful for quantifying the filamentary distribution of dark matter halos over a wide range of scales.
description: MNRAS in press, final version, fitting models refined, cosmic variance errors included, full covariance matrix computed for the error analysis, tables for the EE and ED correlations at z=0 added, 10 pages, 10 figures
A pattern mixture model for a paired $2\times2$ crossover design
Creators: name: Simon, Laura J.
name: Chinchilli, Vernon M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62F03, 62F10 (Primary) 62P10 (Secondary)

description: When conducting a paired $2\times2$ crossover design, each subject is paired with another subject with similar characteristics. The pair is then randomized to the same sequence of two treatments. That is, the two subjects receive the first experimental treatment, and then they cross over and receive the other experimental treatment(s). The paired $2\times2$ crossover design that was used in the Beta Adrenergic Response by GEnotype (BARGE) Study conducted by the National Heart, Lung and Blood Institute's Asthma Clinical Research Network (ACRN) has been described elsewhere. When the data arising from such a design are balanced and complete -- or if at least any missingness that occurs is at random -- general linear mixed-effects model methods can be used to analyze the data. In this paper, we present a method based on a pattern-mixture model for analyzing the data arising from a paired $2\times2$ crossover design when some of the data are missing in a non-ignorable fashion. Because of its inherent scientific interest, we focus our particular attention on the estimation of the treatment-by-type of subject interaction term. Finally, we illustrate the pattern-mixture model methods described in this paper on the data arising from the BARGE study.
description: Published in at http://dx.doi.org/10.1214/193940307000000185 the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Tricresyl Phosphate Measurement Methods Used to Identify Flight Crew and Passenger Exposure
Creators: name: Netten, Chris van
Publisher: name: Zenodo
Year: 2017
Subjects: ACA2017
ACA2017-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2017 (Imperial College, London, 19-20 September 2017)
Program szkolenia specjalizacyjnego w dziedzinie pielęgniarstwa opieki długoterminowej: dla pielęgniarek.
Creators: name: Kądalska, Ewa
name: Kimber-Dziwisz, Lidia
name: Markiewicz, Iwona
name: Stasiak, Elżbieta
name: Lorencowicz, Renata
name: Snarska, Katarzyna
name: Cegła, Bernadeta
name: Strugała, Magdalena
name: Krajnik, Małgorzata
name: Wiśniewski, Marcin
Publisher: name: Zenodo
Year: 2015

description: ss. 45. Warszawa 2015, Centrum Kształcenia Podyplomowego Pielęgniarek i Położnych.
Clustering Properties of restframe UV selected galaxies II: Migration of Star Formation sites with cosmic time from GALEX and CFHTLS
Creators: name: Heinis, Sebastien
name: Milliard, Bruno
name: Arnouts, Stephane
name: Blaizot, Jeremy
name: Schiminovich, David
name: Budavari, Tamas
name: Ilbert, Olivier
name: Treyer, Marie
name: Wyder, Ted K.
name: McCracken, Henry J.
name: Barlow, Tom A.
name: Forster, Karl
name: Friedman, Peter G.
name: Martin, D. Christopher
name: Morrissey, Patrick
name: Neff, Susan G.
name: Seibert, Mark
name: Small, Todd
name: Bianchi, Luciana
name: Heckman, Timothy M.
name: Lee, Young-Wook
name: Madore, Barry F.
name: Rich, R. Michael
name: Szalay, Alex S.
name: Welsh, Barry Y.
name: Yi, Sukyoung K.
name: Xu, C. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the clustering properties of ultraviolet selected galaxies by using GALEX-SDSS data at z<0.6 and CFHTLS deep u' imaging at z=1. These datasets provide a unique basis at z< 1 which can be directly compared with high redshift samples built with similar selection criteria. We discuss the dependence of the correlation function parameters (r0, delta) on the ultraviolet luminosity as well as the linear bias evolution. We find that the bias parameter shows a gradual decline from high (b > 2) to low redshift (b ~ 0.79^{+0.1}_{-0.08}). When accounting for the fraction of the star formation activity enclosed in the different samples, our results suggest that the bulk of star formation migrated from high mass dark matter halos at z>2 (10^12 < M_min < 10^13 M_sun, located in high density regions), to less massive halos at low redshift (M_min < 10^12 M_sun, located in low density regions). This result extends the ``downsizing'' picture (shift of the star formation activity from high stellar mass systems at high z to low stellar mass at low z) to the dark matter distribution.
description: Accepted for Publication in the Special GALEX Ap. J. Supplement, December 2007 Version with full resolution fig1 available at http://taltos.pha.jhu.edu/~sebastien/papers/Galex_p2.ps.gz
NGC1605a and b: an old binary open cluster in the Galaxy
Creators: name: Camargo, Denilso
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This work communicates the discovery of a binary open cluster within the Galaxy. NGC 1605 presents an unusual morphology with a sparse stellar distribution and a double core in close angular proximity. The 2MASS and Gaia-EDR3 field-star decontaminated colour-magnitude diagrams (CMDs) show two distinct stellar populations located at the same heliocentric distance of $\sim2.6$ kpc suggesting that there are two clusters in the region, NGC 1605a and NGC 1605b, with ages of $2$ Gyr and $600$ Myr, respectively. Both Gaia parallax and PM distributions are compact and very similar indicating that they are open clusters (OCs) and share the same kinematics. The large age difference, 1.4 Gyr, points to a formation by tidal capture during a close encounter and the close spatial proximity and similar kinematics suggest an ongoing merger event. There are some prominent tidal debris that appear to trace the clusters' orbits during the close encounter and, unexpectedly, some of them appear to be bound structures, which may suggest that additionaly to the evaporation the merging clusters are being broken apart into smaller structures by the combination of Galactic disk, Perseus arm, and mutual tidal interactions. In this sense, the newly found binary cluster may be a key object on the observational validation of theoretical studies on binary cluster pairs formation by tidal capture as well as in the formation of massive clusters by merging, and tidal disruption of stellar systems.
description: Accepted to publication in the ApJ
title: Review of Aesop i gConamara by Nollaig Mac Congáil
Creators: name: Ó HAisibéil, Liam
Publisher: name: Department of Folklore and Ethnology/Béaloideas, University College Cork
Year: 2011
Subjects: subject: Aesop
subject: Conamara
subject: Nollaig Mac Congáil
subject: Irish
subject: Gaeilge

description: [No abstract available]
title: Réduire la vulnérabilité psychique des femmes en prison
title: interventions infirmières à l’aune du Tidal Model
titleType: Subtitle
title: Réduire la vulnérabilité psychique des femmes en prison
titleType: AlternativeTitle
Creators: name: Alves Morais, Cristiana
name: Favre, Abigail
name: Tacconi, Maeva
Publisher: name: Unknown
Year: 0
Subjects: subject: Prison
subject: Détenues
subject: Interventions infirmières
subject: Vulnérabilité psychique
subject: Stigmatisation
subject: Équivalence des soins
subject: Auto-agressivité
subject: hesav TB SI

description: Contexte : En Suisse, les femmes constituent une minorité au sein de la population carcérale (5,9%). En 2022, on compte 380 femmes incarcérées en Suisse, soit le taux le plus élevé depuis 2009. Les établissements pénitentiaires, majoritairement masculins, ne tiennent pas suffisamment compte des besoins spécifiques des femmes détenues. Parmi elles, une part importante est socialement précaire, présente des comportements à risque pour la santé et avait un faible accès aux soins avant l’incarcération. Objectif : Ce travail vise à identifier les signes de la vulnérabilité psychique chez les détenues, ainsi qu’à relever les interventions infirmières permettant de la réduire. Méthode : A partir de deux bases de données, CINAHL et PubMed, six articles scientifiques ont été retenus à l’aide des critères d’inclusion suivants : femmes incarcérées, adultes, Europe, publications des dix dernières années. Leur analyse critique s’est faite à l’aide des grilles de Fortin. Les six études ont été réalisées en Europe (Angleterre, Royaume-Uni, Italie et Suisse). Résultats : Il ressort des études analysées que les actes d’automutilation sont fréquents chez les femmes détenues, sans qu’ils signifient une intention suicidaire. Ces gestes qui leur permettent d’exprimer une souffrance et soulager des tensions, laissent toutefois des marques corporelles stigmatisantes. La confrontation à ces crises pose des difficultés pour le personnel pénitentiaire, impliquant une collaboration nécessaire avec les soignants. Discussion : Le recours aux outils du modèle du rétablissement peut permettre de réduire la vulnérabilité psychique des détenues : auto-évaluation de leurs besoins, proposition d’activités innovantes favorables à l’estime de soi et à l’acquisition de compétences, amélioration des techniques de soutien par l’offre de formations au personnel pénitentiaire, enfin, développement des collaborations pluridisciplinaires pour prévenir les passages à l’acte et favoriser le processus du rétablissement.
High-energy black hole production
Creators: name: Giddings, Steven B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Black hole production in high-energy collisions is briefly surveyed. Included is a summary of recent developments and open problems relevant to collider (LHC) production, as well as of some theoretical issues pointing towards fundamental principles of quantum gravity.
description: Talk at PASCOS 2007, to appear in the proceedings. v2: minor improvements, added refs. v3: reference correction. 11 pages, latex
Mechanisms and Regulatory Implications of Oil Leakage into the Cabin Air Supply
Creators: name: Michaelis, Susan
name: Morton, John
Publisher: name: Zenodo
Year: 2017
Subjects: ACA2017
ACA2017-PRE

description: -
description: This is a presentation from the International Aircraft Cabin Air Conference 2017 (Imperial College, London, 19-20 September 2017)
MPEC 2024-T18 : 2020 TS2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Hidden charm pentaquark states in a diquark model
Creators: name: Shi, Pan-Pan
name: Huang, Fei
name: Wang, Wen-Ling
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The mass spectrum of hidden charm pentaquark states composed of two diquarks and an antiquark are calculated by use of an effective Hamiltonian which includes explicitly the spin, color, and flavor dependent interactions. The results show that the $P_c(4312)^+$ and $P_c(4440)^+$ states could be explained as hidden charm pentaquark states with isospin and spin-parity $IJ^P=1/2\left(3/2^-\right)$, the $P_c(4457)^+$ state could be explained as a hidden charm pentaquark state with $IJ^P=1/2\left(5/2^-\right)$, and the $P_{cs}(4459)^+$ state could be explained as a hidden charm pentaquark state with $IJ^P=0\left(1/2^-\right)$ or $0\left(3/2^-\right)$. Predications for the masses of other possible pentaquark states are also given, and the possible decay channels of these hidden charm pentaquark states are discussed.
description: 9 pages
A compressible two-fluid model for the finite volume simulation of violent aerated flows. Analytical properties and numerical results
Creators: name: Dias, Frédéric
name: Dutykh, Denys
name: Ghidaglia, Jean-Michel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the study of ocean wave impact on structures, one often uses Froude scaling since the dominant force is gravity. However the presence of trapped or entrained air in the water can significantly modify wave impacts. When air is entrained in water in the form of small bubbles, the acoustic properties in the water change dramatically and for example the speed of sound in the mixture is much smaller than in pure water, and even smaller than in pure air. While some work has been done to study small-amplitude disturbances in such mixtures, little work has been done on large disturbances in air-water mixtures. We propose a basic two-fluid model in which both fluids share the same velocities. It is shown that this model can successfully mimic water wave impacts on coastal structures. Even though this is a model without interface, waves can occur. Their dispersion relation is discussed and the formal limit of pure phases (interfacial waves) is considered. The governing equations are discretized by a second-order finite volume method. Numerical results are presented. It is shown that this basic model can be used to study violent aerated flows, especially by providing fast qualitative estimates.
description: 38 pages, 22 figures; CMLA research report; Other authors papers and animations related to this work can be downloaded from: http://www.lama.univ-savoie.fr/~dutykh/
Asymptotic behavior of the mean square displacement of the Brownian parametric oscillator near the singular point
Creators: name: Tashiro, Tohru
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A parametric oscillator with damping driven by white noise is studied. The mean square displacement (MSD) in the long-time limit is derived analytically for the case that the static force vanishes, which was not treated in the past work \cite{tashiro07}. The formula is asymptotic but is applicable to a general periodic function. On the basis of this formula, some periodic functions reducing MSD remarkably are proposed.
Measurements of t¯tH and tH production(with focus on multilepton and H ! b¯b channels)
Creators: name: Missiroli, Marino
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019

description: Standard Model at the LHC 2019, SM@LHC2019, Zürich, Switzerland, 23 Apr 2019 - 26 Apr 2019
description: Observation of the Higgs-top associated production has been recently achieved by the ATLAS and CMS collaborations from the combination of different final states. In particular recent results on final states with multiple leptons and Higgs decaying into a b quark pair will be presented. An important systematic for these measurements is represented by the irreducible backgrounds of top production with vector bosons and b-jets and will be discussed extensively.
Free Energy of Twisted Semiflexible Polymers
Creators: name: Sinha, Supurna
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the role of fluctuations in single molecule measurements of torque-link ($t-lk$) curves. For semiflexible polymers of finite persistence length (i.e. polymers with contour length $L$ comparable to the persistence length $L_P$), the torque versus link curve in the constant torque (isotorque) ensemble is distinct from the one in the constant link (isolink) ensemble. Thus, one encounters the conceptually interesting issue of a ``free energy of transition'' in switching ensembles while making torque-link measurements. We predict the dependence on the semiflexibility parameter $β= L/L_P$ of this extra contribution to the free energy which shows up as an area in the torque-link plane. This can be tested against future torque-link experiments with single biopolymers. We bring out the inequivalence of torque-link curves for a stiff polymer and present explicit analytical expressions for the {\it distinct} torque-link relations in the two ensembles and the free energy difference in switching ensembles in this context. The predictions of our work can be tested against single molecule experiments on torsionally constrained biopolymers.
description: To appear in Physical Review E
Usability Inspection: Novice Crowd Inspectors versus Expert
Creators: name: Nasir, Muhammad
name: Ikram, Naveed
name: Jalil, Zakia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Objective: This research study aims to investigate the use of novice crowd inspectors for usability inspection with respect to time spent and the cost incurred. This study compares the results of the novice crowd usability inspection guided by a single expert's heuristic usability inspection (novice crowd usability inspection henceforth) with the expert heuristic usability inspection. Background: Traditional usability evaluation methods are time consuming and expensive. Crowdsourcing has emerged as a cost effective and quick means of software usability evaluation. Method: In this regard, we designed an experiment to evaluate the usability of two websites and a web dashboard. Results: The results of the experiment show that novice crowd usability inspection guided by a single expert's heuristic usability inspection: a). Finds the same usability issues (w.r.t. content & quantity) as expert heuristic usability inspection. b). Is cost effective than expert heuristic usability inspection employing less time duration. Conclusion: Based on the findings of this research study, we can conclude that the novice crowd usability inspection guided by a single expert's heuristic usability inspection and expert heuristic usability inspection, on average, gives the same results in terms of issues identified.
Strain localization in a shear transformation zone model for amorphous solids
Creators: name: Manning, M. L.
name: Langer, J. S.
name: Carlson, J. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We model a sheared disordered solid using the theory of Shear Transformation Zones (STZs). In this mean-field continuum model the density of zones is governed by an effective temperature that approaches a steady state value as energy is dissipated. We compare the STZ model to simulations by Shi, et al.(Phys. Rev. Lett. 98 185505 2007), finding that the model generates solutions that fit the data,exhibit strain localization, and capture important features of the localization process. We show that perturbations to the effective temperature grow due to an instability in the transient dynamics, but unstable systems do not always develop shear bands. Nonlinear energy dissipation processes interact with perturbation growth to determine whether a material exhibits strain localization. By estimating the effects of these interactions, we derive a criterion that determines which materials exhibit shear bands based on the initial conditions alone. We also show that the shear band width is not set by an inherent diffusion length scale but instead by a dynamical scale that depends on the imposed strain rate.
description: 8 figures, references added, typos corrected
Challenges to the DGP Model from Horizon-Scale Growth and Geometry
Creators: name: Fang, Wenjuan
name: Wang, Sheng
name: Hu, Wayne
name: Haiman, Zoltan
name: Hui, Lam
name: May, Morgan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We conduct a Markov Chain Monte Carlo study of the Dvali-Gabadadze-Porrati (DGP) self-accelerating braneworld scenario given the cosmic microwave background (CMB) anisotropy, supernovae and Hubble constant data by implementing an effective dark energy prescription for modified gravity into a standard Einstein-Boltzmann code. We find no way to alleviate the tension between distance measures and horizon scale growth in this model. Growth alterations due to perturbations propagating into the bulk appear as excess CMB anisotropy at the lowest multipoles. In a flat cosmology, the maximum likelihood DGP model is nominally a 5.3 sigma poorer fit than Lambda CDM. Curvature can reduce the tension between distance measures but only at the expense of exacerbating the problem with growth leading to a 4.8 sigma result that is dominated by the low multipole CMB temperature spectrum. While changing the initial conditions to reduce large scale power can flatten the temperature spectrum, this also suppresses the large angle polarization spectrum in violation of recent results from WMAP5. The failure of this model highlights the power of combining growth and distance measures in cosmology as a test of gravity on the largest scales.
description: 12 pages, 7 figures, 4 tables, minor revisions reflect PRD published version
FAQ zu rechtlichen Aspekten im Umgang mit Forschungsdaten
Creators: name: Leibniz Universität Hannover
name: Technische Informationsbibliothek
Publisher: name: Zenodo
Year: 2019
Subjects: FDM
rechtlich
Forschungsdaten

description: In diesem Merkblatt sind häufige Fragen von Forschenden sowie Antworten von Juristinnen und Juristen der Leibniz Universität Hannover und der Technischen Informationsbibliothek zu rechtlichen Aspekten im Umgang mit Forschungsdaten zusammengestellt. Ein Großteil der Informationen sollte auch auf andere Forschungseinrichtungen übertragbar sein.
description: Die hier zusammengestellten Informationen sind nur als grobe Orientierungshilfe anzusehen, die eine individuelle Rechtsberatung nicht ersetzen kann. Alle Angaben sind ohne Gewähr.

Anmerkung zur Version v02 vom 17. Mai 2019: Diese Version unterscheidet sich inhaltlich nicht von der Ursprungsversion vom 15. Februar 2018. Es wurden lediglich Kontaktaten der Ansprechpersonen aktualisiert und die Schriftart zu Arial geändert.
Density Perturbations in the Universe from Massive Vector Fields
Creators: name: Dimopoulos, Konstantinos
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss the possibility of using a massive vector field to generate the density perturbation in the Universe. I find that a scale-invariant superhorizon spectrum of vector field perturbations is possible to generate during inflation. The associated curvature perturbation is imprinted onto the Universe following the curvaton scenario. The mechanism does not generate a long-range anisotropy because an oscillating massive vector field behaves as a pressureless isotropic fluid.
description: In proceedings of 13th International Symposium on Particles Strings and Cosmology, PASCOS-07, 4pp
ObserveNet Control: A Vision-Dynamics Learning Approach to Predictive Control in Autonomous Vehicles
Creators: name: Ginerica, Cosmin
name: Zaha, Mihai
name: Gogianu, Florin
name: Busoniu, Lucian
name: Trasnea, Bogdan
name: Grigorescu, Sorin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: A key component in autonomous driving is the ability of the self-driving car to understand, track and predict the dynamics of the surrounding environment. Although there is significant work in the area of object detection, tracking and observations prediction, there is no prior work demonstrating that raw observations prediction can be used for motion planning and control. In this paper, we propose ObserveNet Control, which is a vision-dynamics approach to the predictive control problem of autonomous vehicles. Our method is composed of a: i) deep neural network able to confidently predict future sensory data on a time horizon of up to 10s and ii) a temporal planner designed to compute a safe vehicle state trajectory based on the predicted sensory data. Given the vehicle's historical state and sensing data in the form of Lidar point clouds, the method aims to learn the dynamics of the observed driving environment in a self-supervised manner, without the need to manually specify training labels. The experiments are performed both in simulation and real-life, using CARLA and RovisLab's AMTU mobile platform as a 1:4 scaled model of a car. We evaluate the capabilities of ObserveNet Control in aggressive driving contexts, such as overtaking maneuvers or side cut-off situations, while comparing the results with a baseline Dynamic Window Approach (DWA) and two state-of-the-art imitation learning systems, that is, Learning by Cheating (LBC) and World on Rails (WOR).
ГЕЛМИНТОЗЛАР БИЛАН ЗАРАРЛАНГАН ҚОРАКЎЛ ҚЎЗИЛАРНИНГ МОРФОФИЗИОЛОГИК ВА КЛИНИК КЎРСАТКИЧЛАРИ
Creators: name: Худжанова, Муаттар
name: Хуррамова, Гулҳаё
Publisher: name: Zenodo
Year: 2023

description: Бугунги кунда чорвачилик қишлоқ ҳўжалигининг асосий соҳаларидан бири ҳисобланади. Бироқ бу соҳани ривожлантиришда туёқли ҳайвонлар сонининг кўпайишига тўсқинлик қилаётган асосий омиллардан бири - улар орасида юқумли ва паразитар касалликларнинг тарқалишидир. Хусусан, ҳозирги вақтда катта эпизоотологик ва эпидемиологик аҳамиятга эга бўлган маршаллагия, нематодирус ва хабертия личинкалари томонидан ривожланаётган гелминтозлар натижасида чорвачилик хўжаликларига катта иқтисодий зарар этказилмоқда. Мақолада гелминтозлар билан зарарланган қоракўл қўзилар организмида паразитларнинг инвазион ривожланиш босқичларидаги морфофизиологик ва клиник кўрсаткичларига таъсири ва оқибатлари ўрганилган.
New Prototype Multi-gap Resistive Plate Chambers with Long Strips
Creators: name: Sun, Y. J.
name: Li, C.
name: Shao, M.
name: Gui, B.
name: Zhao, Y. E.
name: Chen, H. F.
name: Xu, Z. B.
name: Ruan, L. J.
name: Lin, G. J.
name: Wang, X.
name: Wang, Y.
name: Tang, Z. B.
name: Eppley, G.
name: Fachini, P.
name: Kohl, M.
name: Liu, J.
name: Llope, W. J.
name: Majka, R.
name: Nussbaun, T.
name: Ramberg, E.
name: Sakuma, T.
name: Simon, F.
name: Smirnov, N.
name: Surrow, B.
name: Underwood, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A new kind of Multi-gap Resistive Plate Chamber (MRPC) has been built for the large-area Muon Telescope Detector (MTD) for the STAR experiment at RHIC. These long read-out strip MRPCs (LMRPCs) have an active area of 87.0 x 17.0 cm2 and ten 250 um-thick gas gaps arranged as a double stack. Each read-out strip is 2.5 cm wide and 90 cm long. The signals are read-out at both ends of each strip. Cosmic ray tests indicate a time resolution of ~70 ps and a detection efficiency of greater than 95%. Beam tests performed at T963 at Fermilab indicate a time resolution of 60-70 ps and a spatial resolution of ~1 cm along the strip direction.
description: 9 pages, 13 figures, submitted to Nucl. Instr. and Meth. A
Sex role orientation : its possible impact on the marital satisfaction of dual career couples
Creators: name: Kenney, Suzanne
Publisher: name: University of British Columbia
Year: 2010

description: This study investigated the influence of sex role orientation on the marital satisfaction of dual career couples. The conceptual framework upon which the investigation was based was drawn from literature dealing with role change and symptomatic stresses in the lifestyle of dual career couples. The sample consisted of 46 dual career couples drawn from a large urban area on the West Coast of Canada. Three sets of hypotheses were explored, all using marital satis -faciton as the dependent variable. The specific hypotheses were as follows: (1) the marital satisfaction of androgynous couples is higher than the marital satisfaction of sex role stereotypic couples in dual career couples; (2) the marital satisfaction of androgynous men is higher than the marital satisfaction of sex role stereotypic men in dual career couples; (3) the marital satisfaction of wives of androgynous men is higher than the marital satisfaction of wives with sex role stereotypic husbands in dual career couples. The hypotheses were tested by the self administration of two inventories to both members of each couple. Bern's Sex-Role Inventory (BSRI) was used to identify sex role orientation and a subscale of the Dyadic Adjustment Scale (DAS) was used to measure marital satisfaction. An individual was considered androgynous if he or she scored above the median on both masculine and feminine subscales of the BSRI. Androgynous dyads were those couples in which both partners were androgynous. A female participant was considered sex role stereotypic if she scored above the median on the feminine subscale and below the median on the masculine subscale of the BSRI. The reverse situation applied to male participants. Sex role stereotypic dyads were those couples in which both partners were sex role stereotypic. To test the hypotheses, the t-test of the difference between means for independent groups was performed. Hypothesis 1 was not sustained suggesting that the marital satisfaction of androgynous couples was not significantly greater than the marital satisfaction of stereotyped couples. Support was obtained for Hypotheses 2 and 3 at the .05 level of significance. These results suggest that the marital satisfaction of the androgynous male was significantly higher than the marital satisfaction of a sex role stereotypic male. In addition, the hypothesis that the marital satisfaction of the wives of androgynous husbands was higher than the marital satisfaction of wives of sex role stereotypic husbands was supported. In the supplementary analysis, Pearson r correlation coefficients were used to explore the relationship between typologies on the BSRI and the scores and subscores on the DAS.
Deuteron production in Pb-Pb collisions measured with ALICE at the LHC
Creators: name: Dönigus, Benjamin
name: Kalweit, Alexander
name: Martin, N.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2014
Subjects: Physics

description: GSI Scientific Report 2013 - GSI Report 2014-1
Clustering of low mass stars around Herbig Be star IL Cep -- Evidence of "Rocket Effect" using Gaia EDR3 ?
Creators: name: Arun, R.
name: Mathew, Blesson
name: Maheswar, G.
name: Baug, T.
name: Kartha, Sreeja S.
name: Selvakumar, G.
name: Manoj, P.
name: Shridharan, B.
name: Anusha, R.
name: Narang, Mayank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the formation and the kinematic evolution of the early type Herbig Be star IL Cep and its environment. The young star is a member of the Cep OB3 association, at a distance of 798$\pm$9 pc, and has a "cavity" associated with it. We found that the B0V star HD 216658, which is astrometrically associated with IL Cep, is at the center of the cavity. From the evaluation of various pressure components created by HD 216658, it is established that the star is capable of creating the cavity. We identified 79 co-moving stars of IL Cep at 2 pc radius from the analysis of {\textit Gaia} EDR3 astrometry. The transverse velocity analysis of the co-moving stars shows that they belong to two different populations associated with IL Cep and HD 216658, respectively. Further analysis confirms that all the stars in the IL Cep population are mostly coeval ($\sim$ 0.1 Myr). Infrared photometry revealed that there are 26 Class II objects among the co-moving stars. The stars without circumstellar disk (Class III) are 65\% of all the co-moving stars. There are 9 intense H$α$ emission candidates identified among the co-moving stars using IPHAS H$α$ narrow-band photometry. The dendrogram analysis on the Hydrogen column density map identified 11 molecular clump structures on the expanding cavity around IL Cep, making it an active star-forming region. The formation of the IL Cep stellar group due to the "rocket effect" by HD 216658 is discussed.
description: 16 pages,5 tables, 13 figures, accepted for publication in MNRAS
Validation of Bayesian PID in ALICE, for the channel $D^0 \rightarrow K^-\pi^+$ in pp at $\sqrt{s}=7$ TeV
Creators: name: Wilkinson, J.
name: Schweda, K.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2014
Subjects: Physics

description: GSI Scientific Report 2013 - GSI Report 2014-1
An Idealised Approach of Geometry and Topology to the Diffusion of Cations in Honeycomb Layered Oxide Frameworks
Creators: name: Kanyolo, Godwill Mbiti
name: Masese, Titus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Honeycomb layered oxides are a novel class of nanostructured materials comprising alkali or alkaline earth metals intercalated into transition metal slabs. The intricate honeycomb architecture and layered framework endows this family of oxides with a tessellation of features such as exquisite electrochemistry, unique topology and fascinating electromagnetic phenomena. Despite having innumerable functionalities, these materials remain highly underutilized as their underlying atomistic mechanisms are vastly unexplored. Therefore, in a bid to provide a more in-depth perspective, we propose an idealised diffusion model of the charged alkali cations (such as lithium, sodium or potassium) in the two-dimensional (2D) honeycomb layers within the three-dimensional (3D) crystal of honeycomb layered oxide frameworks. This model not only explains the correlation between the excitation of cationic vacancies (by applied electromagnetic fields) and the Gaussian curvature deformation of the 2D surface, but also takes into consideration, the quantum properties of the cations and their inter-layer mixing through quantum tunnelling. Through this work, we offer a novel theoretical framework for the study of 3D layered materials with 2D cationic diffusion currents, as well as providing pedagogical insights into the role of topological phase transitions in these materials in relation to Brownian motion and quantum geometry.
description: 34 pages, 3 figures
Co-orbital Oligarchy
Creators: name: Collins, Benjamin F.
name: Sari, Re'em
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a systematic examination of the changes in semi-major axis caused by the mutual interactions of a group of massive bodies orbiting a central star in the presence of eccentricity dissipation. For parameters relevant to the oligarchic stage of planet formation, dynamical friction keeps the typical eccentricities small and prevents orbit crossing. Interactions at impact parameters greater than several Hill radii cause the protoplanets to repel each other; if the impact parameter is instead much less than the Hill radius, the protoplanets shift slightly in semi-major axis but remain otherwise unperturbed. If the orbits of two or more protoplanets are separated by less than a Hill radius, they are each pushed towards an equilibrium spacing between their neighbors and can exist as a stable co-orbital system. In the shear-dominated oligarchic phase of planet formation we show that the feeding zones contain several oligarchs instead of only one. Growth of the protoplanets in the oligarchic phase drives the disk to an equilibrium configuration that depends on the mass ratio of protoplanets to planetesimals, $Σ/σ$. Early in the oligarchic phase, when $Σ/σ$ is low, the spacing between rows of co-orbital oligarchs are about 5 Hill radii wide, rather than the 10 Hill radii cited in the literature. It is likely that at the end of oligarchy the average number of co-orbital oligarchs is greater than unity. In the outer solar system this raises the disk mass required to form the ice giants. In the inner solar system this lowers the mass of the final oligarchs and requires more giant impacts than previously estimated. This result provides additional evidence that Mars is not an untouched leftover from the oligarchic phase, but must be composed of several oligarchs assembled through giant impacts.
description: 10 pages, 8 figures. v2 includes major revisions including additional results motivated by the referee's comments
Discharge probability studies with GEM detectors
Creators: name: Gasik, P.
name: Ball, M.
name: Fabbietti, Laura
name: Ketzer, B.
name: Margutti, J.
name: Mathis, A.
name: Weber, S.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2014
Subjects: Physics

description: GSI Scientific Report 2013 - GSI Report 2014-1
Projected likelihood contrasts for testing homogeneity in finite mixture models with nuisance parameters
Creators: name: Sengupta, Debapriya
name: Mazumder, Rahul
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62G08, 60G35 (Primary) 60J55 (Secondary)

description: This paper develops a test for homogeneity in finite mixture models where the mixing proportions are known a priori (taken to be 0.5) and a common nuisance parameter is present. Statistical tests based on the notion of Projected Likelihood Contrasts (PLC) are considered. The PLC is a slight modification of the usual likelihood ratio statistic or the Wilk's $Λ$ and is similar in spirit to the Rao's score test. Theoretical investigations have been carried out to understand the large sample statistical properties of these tests. Simulation studies have been carried out to understand the behavior of the null distribution of the PLC statistic in the case of Gaussian mixtures with unknown means (common variance as nuisance parameter) and unknown variances (common mean as nuisance parameter). The results are in conformity with the theoretical results obtained. Power functions of these tests have been evaluated based on simulations from Gaussian mixtures.
description: Published in at http://dx.doi.org/10.1214/193940307000000194 the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Deceptive Logic Locking for Hardware Integrity Protection against Machine Learning Attacks
Creators: name: Sisejkovic, Dominik
name: Merchant, Farhad
name: Reimann, Lennart M.
name: Leupers, Rainer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Logic locking has emerged as a prominent key-driven technique to protect the integrity of integrated circuits. However, novel machine-learning-based attacks have recently been introduced to challenge the security foundations of locking schemes. These attacks are able to recover a significant percentage of the key without having access to an activated circuit. This paper address this issue through two focal points. First, we present a theoretical model to test locking schemes for key-related structural leakage that can be exploited by machine learning. Second, based on the theoretical model, we introduce D-MUX: a deceptive multiplexer-based logic-locking scheme that is resilient against structure-exploiting machine learning attacks. Through the design of D-MUX, we uncover a major fallacy in existing multiplexer-based locking schemes in the form of a structural-analysis attack. Finally, an extensive cost evaluation of D-MUX is presented. To the best of our knowledge, D-MUX is the first machine-learning-resilient locking scheme capable of protecting against all known learning-based attacks. Hereby, the presented work offers a starting point for the design and evaluation of future-generation logic locking in the era of machine learning.
description: Accepted at IEEE TCAD 2021
How to make large, void free dust clusters in dusty plasma under microgravity
Creators: name: Land, V.
name: Goedheer, W. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Collections of micrometer sized solid particles immersed in plamsa are used to mimic many systems from solid state and fluid physics, due to their strong electrostatic interaction, their large inertia, and the fact that they are large enough to be visualized with ordinary optics. On Earth, gravity restricts the so called dusty plasma systems to thin, two-dimensional layers, unless special experimental geometries are used, involving heated or cooled electrons, and/or the use of dielectric materials.In micro-gravity experiments, the formation of a dust-free void breaks the isotropy of three-dimensional dusty plasma systems. In order to do real three-dimensional experiments, this void has somehow to be closed. In this paper, we use a fully self-consistent fluid model to study the closure of a void in a micro-gravity experiment, by lowering the driving potential. The analysis goes beyond the simple description of the virtual void, which describes the formation of a void without taking the dust into account. We show that self-organization plays an important role in void formation and void closure, which also allows a reversed scheme, where a discharge is run at low driving potentials and small batches of dust are added. No hysteresis is found this way. Finally, we compare our results to recent experiments and find good agreement,but only when we do not take charge-exchange collisions into account.
100'000 institutions on the Wikimedia projects: A strategy to activate in a simple way all the institutions around the world
Creators: name: Iolanda, Pensa
Publisher: name: Zenodo
Year: 2023

description: A strategy to activate all institutions around the world on the Wikimedia projects: an accompanying path aimed at all institutions to start an open access policy by making 20 images available with open licenses and tools. The proposal is based on the strategy and instruments implemented by the ongoing project "Empowering Italian GLAMs" which focuses on 3'000 Italian museums (promoted Wikimedia Italy, with ICOM Italy, Creative Commons Italy, University of Turin and co-funding Wikimedia Foundation).