cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Primordial blackholes from Gauss-Bonnet-corrected single field inflation
Creators: name: Kawai, Shinsuke
name: Kim, Jinsu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Primordial blackholes formed in the early Universe via gravitational collapse of over-dense regions may contribute a significant amount to the present dark matter relic density. Inflation provides a natural framework for the production mechanism of primordial blackholes. For example, single field inflation models with a fine-tuned scalar potential may exhibit a period of ultra-slow roll, during which the curvature perturbation may be enhanced to become seeds of the primordial blackholes formed as the corresponding scales reenter the horizon. In this work, we propose an alternative mechanism for the primordial blackhole formation. We consider a model in which a scalar field is coupled to the Gauss-Bonnet term and show that primordial blackholes may be seeded when a scalar potential term and the Gauss-Bonnet coupling term are nearly balanced. Large curvature perturbation in this model not only leads to the production of primordial blackholes but it also sources gravitational waves at the second order. We calculate the present density parameter of the gravitational waves and discuss the detectability of the signals by comparing them with sensitivity bounds of future gravitational wave experiments.
description: v1: 9 pages, 3 figures; v2: 10 pages, 3 figures, references updated, version accepted for publication in PRD
Dust Extinction and Emission in a Clumpy Galactic Disk. An Application of the Radiative Transfer Code TRADING
Creators: name: Bianchi, Simone
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: AIMS: I present the Monte Carlo radiative transfer code TRADING (Transfer of RAdiation through Dust In Galaxies). The code computes self-consistently the extinction of radiation in a dusty medium (including absorption and scattering) and the dust emission. METHODS: A binary-tree adaptive grid is used for the description of the dust distribution. Dust radiation is computed at thermal equilibrium or under stochastic heating condition, for a distribution of grains of different radii and materials. The code is applied to the case of a clumpy galactic disk, including both diffuse dust and a distribution of spherical clouds modelled on the GMCs of local galaxies. Diffuse and localised sources of starlight are used, with independent spectra. RESULTS: A model is provided for the edge-on galaxy NGC 891. The SED of the galaxy from the UV to the submm/mm range can be well reproduced by: a bulge/disk configuration of old stars together with an extended dust disk, as suggested by the analysis of optical/near-infrared images; a clumpy dust distribution of the same mass as the diffuse dust disk, together with a UV emitting component, half of which in the form of a diffuse disk and half in sources embedded in clouds. In total, it is found that about 35% of the bolometric radiation is absorbed (and emitted) by dust; and that absorption of starlight from the old population contributes to about 60% of the dust emission. A significant component of the dust emission from clouds is due to absorption of diffuse radiation. Radial profiles of dust emission in a clumpy disk are almost independent of the wavelength, with the exception of the wavelength range on the Wien side of the thermal equilibrium peak.
description: 15 pages, 13 figures, A&A accepted; added footnote 9 and references
Azimuthal correlations of D mesons with charged particles in simulations with the ALICE experiment
Creators: name: Frajna, Eszter
name: Vertesi, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this manuscript, results of a component-level analysis with Monte Carlo simulations are presented, that aid the interpretation of recent ALICE results on the azimuthal correlation distribution of prompt D mesons with charged hadrons in pp and p--Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. Parton-level contributions and fragmentation properties are evaluated. Charm and beauty contributions are compared in order to identify the observables that serve as sensitive probes of the production and hadronization of heavy quarks.
description: This paper is based on the talk at the ACHT 2021 "Perspectives in Particle, Cosmo- and Astroparticle Theory", online, 21-23 April 2021. Accepted in MDPI Particles
Numerical simulation of nonlinear waves and ship motions
Creators: name: Fitz-Clarke, John R.
Publisher: name: University of British Columbia
Year: 2010

description: A numerical method is presented for simulating the behaviour of large amplitude nonlinear free surface waves including wave breaking. Various initial conditions are given and the subsequent surface profiles are calculated by a time stepping simulation. The flow field is solved as a boundary value problem for the velocity potential using a complex variable method based on the Cauchy integral theorem. Waves of varying shape, height, and length are investigated to determine the parameters necessary for wave breaking and the resulting fluid velocities. The technique has proven to be very accurate and stable. The method is extended to predict the motions of a two dimensional floating body in large amplitude seas accounting for non-linear effects and fluid-body interaction. The presence of singularities at the free surface intersection points was found to severely limit accuracy of the solution and attempts to overcome this problem are discussed. An extension to handle three dimensional ships is also described.
Mixing the Objective Caml and C# Programming Models in the .Net Framework
Creators: name: Chailloux, Emmanuel
name: Henry, Grégoire
name: Montelatici, Raphaël
Publisher: name: arXiv
Year: 2007
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We present a new code generator, called O'Jacare.net, to inter-operate between C# and Objective Caml through their object models. O'Jacare.net defines a basic IDL (Interface Definition Language) that describes classes and interfaces in order to communicate between Objective Caml and C#. O'Jacare.net generates all needed wrapper classes and takes advantage of static type checking in both worlds. Although the IDL intersects these two object models, O'Jacare.net allows to combine features from both.
Decoherent quantum walks driven by a generic coin operation
Creators: name: Abal, G.
name: Donangelo, R.
name: Severo, F.
name: Siri, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the effect of different unitary noise mechanisms on the evolution of a quantum walk (QW) on a linear chain with a generic coin operation: (i) bit-flip channel noise, restricted to the coin subspace of the QW, and (ii) topological noise caused by randomly broken links in the linear chain. Similarities and differences in the respective decoherent dynamics of the walker as a function of the probability per unit time of a decoherent event taking place are discussed.
Effective QCD string and doubly heavy baryons
Creators: name: Soto, Joan
name: Castellà, Jaume Tarrús
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Expressions for the potentials appearing in the nonrelativistic effective field theory description of doubly heavy baryons are known in terms of operator insertions in the Wilson loop. However, their evaluation requires nonperturbative techniques, such as lattice QCD, and the relevant calculations are often not available. We propose a parametrization of these potentials with a minimal model dependence based on an interpolation of short- and long-distance descriptions. The short-distance description is obtained from weakly-coupled pNRQCD and the long-distance one is computed using an effective string theory. The effective string theory coincides with the one for pure gluodynamics with the addition of a fermion field constrained to move on the string. We compute the hyperfine contributions to the doubly heavy baryon spectrum. The unknown parameters are obtained from heavy quark-diquark symmetry or fitted to the available lattice QCD determinations of the hyperfine splittings. Using these parameters we compute the double charm and bottom baryon spectrum including the hyperfine contributions. We compare our results with those of other approaches and find that our results are closer to lattice QCD determinations, in particular for the excited states. Furthermore, we compute the vacuum energy in the effective string theory and show that the fermion field contribution produces the running of the string tension and a change of sign in the Lüscher term.
description: 27 pages, 6 figures. Journal version
Viable semi-relativistic quark model of heavy-light systems
Creators: name: Matsuki, T.
name: Morii, T.
name: Sudoh, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The semi-relativistic quark potential model is surprisingly powerful for heavy-light systems if the bound state equation is treated correctly using 1/m_Q expansion with heavy quark mass m_Q. We elucidate the reasons why our semi-relativistic model succeeds in predicting and reproducing all the mass spectra of heavy-light systems so far reported, D/D_s/B/B_s, by reviewing and comparing recent experimental data with the results of our model and others. Especially the mass spectra of the so-called D_{sJ}, i.e., D_{s0}^* and D_{s1}', are successfully reproduced only by our model but not by other models.
description: Talk at the Workshop on "Scalar Mesons and Related Topics (Scadron 70)" held at Instituto Superior Tecnico (IST), Lisbon, Portugal, February 11-16, 2008
Hydrodynamic coefficients of compound circular cylinders in surge motion
Creators: name: Goodridge, Douglas N.
Publisher: name: University of British Columbia
Year: 2010

description: The hydrodynamic coefficients, that is the added mass and damping coefficients, are determined experimentally for compound circular cylinders in surge motion. The surge force induced by forced harmonic oscillation of cylinder models is measured. In addition the induced wave height in the flow field is also measured. The effect of varying the displacement amplitude, the frequency of oscillation and the cylinder draft are investigated for single, double and triple cylinder models. The results are compared to the theoretical predictions of the Matching Technique (MT) and the Boundary Element Method (BEM). The Matching Technique formulation uses continuity of pressures and velocities between adjacent regions in the flow field to solve for the velocity potentials and hence to determine the hydrodynamic coefficients of the cylinder models. Application of the Boundary Element Method is simplified by the axisymmetry of the problem. In this method a control volume is defined and discretized into ring shaped elements. The potential within each element can then be solved simultaneously using the boundary conditions. In addition experiments were conducted to measure the wave induced exciting force on the cylinder models and the results of these experiments were compared with the theoretical predictions of the Boundary Element Method.
Strange mesons in nuclear matter at finite temperature
Creators: name: Tolos, L.
name: Cabrera, D.
name: Ramos, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the properties of $K$ and $\bar K$ mesons in nuclear matter at finite temperature from a chiral unitary approach in coupled channels which incorporates the $s$- and p-waves of the kaon-nucleon interaction. The in-medium solution accounts for Pauli blocking effects, mean-field binding on all the baryons involved, and $π$ and kaon self-energies. We calculate $K$ and $\bar K$ (off-shell) spectral functions and single particle properties. The $\bar K$ effective mass gets lowered by about -50 MeV in cold nuclear matter at saturation density and by half this reduction at T=100 MeV. The p-wave contribution to the ${\bar K}$ optical potential, due to $Λ$, $Σ$ and $Σ^*$ excitations, becomes significant for momenta larger than 200 MeV/c and reduces the attraction felt by the $\bar K$ in the nuclear medium.The $\bar K$ spectral function spreads over a wide range of energies, reflecting the melting of the $Λ(1405)$ resonance and the contribution of $YN^{-1}$ components at finite temperature. In the $KN$ sector, we find that the low-density theorem is a good approximation for the $K$ self-energy close to saturation density due to the absence of resonance-hole excitations. The $K$ potential shows a moderate repulsive behavior, whereas the quasi-particle peak is considerably broadened with increasing density and temperature. We discuss the implications for the decay of the $ϕ$ meson at SIS/GSI energies as well as in the future FAIR/GSI project.
description: 35 pages, 10 figures, 1 table
MPEC 2023-Y89 : 2023 YH1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 YH1

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.
A simple and robust Abaqus implementation of the phase field fracture method
Creators: name: Navidtehrani, Yousef
name: Betegón, Covadonga
name: Martínez-Pañeda, Emilio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The phase field fracture method is attracting significant interest. Phase field approaches have enabled predicting - on arbitrary geometries and dimensions - complex fracture phenomena such as crack branching, coalescence, deflection and nucleation. In this work, we present a simple and robust implementation of the phase field fracture method in the commercial finite element package Abaqus. The implementation exploits the analogy between the phase field evolution law and the heat transfer equation, enabling the use of Abaqus' in-built features and circumventing the need for defining user elements. The framework is general, and is shown to accommodate different solution schemes (staggered and monolithic), as well as various constitutive choices for preventing damage under compression. The robustness and applicability of the numerical framework presented is demonstrated by addressing several 2D and 3D boundary value problems of particular interest. Focus is on the solution of paradigmatic case studies that are known to be particularly demanding from a convergence perspective. The results reveal that our phase field fracture implementation can be readily combined with other advanced computational features, such as contact, and deliver robust and precise solutions. The code developed can be downloaded from www.empaneda.com/codes.
title: La compétence culturelle pour une amélioration des soins auprès des immigrants en milieu hospitalier
title: La compétence culturelle pour une amélioration des soins auprès des immigrants en milieu hospitalier
titleType: AlternativeTitle
Creators: name: Farhad, Zeinab
name: Vadeleux, Romain
Publisher: name: Unknown
Year: 0
Subjects: subject: soins infirmiers
subject: barrière de la langue
subject: compétence culturelle
subject: soins interculturels
subject: immigrants
subject: étudiants infirmiers

description: Contexte : Bien souvent, la barrière linguistique et culturelle restent pour les soins infirmiers un obstacle dans la prise en charge des immigrants. Certains soignants ressentent de la frustration ainsi qu’une incompréhension de la situation. Les immigrants peuvent ressentir un certain mécontentement envers les soignants, une augmentation de l’anxiété et peuvent aussi être ré-hospitalisés par manque de compréhension des suites des traitements. Cela met en évidence l’importance de l’acquisition de compétence culturelle par le personnel infirmier. Pour les futurs infirmier-ère-s, obtenir une base solide de connaissance augmentera leur niveau de confiance et par conséquent diminuera leur incertitude ainsi que leur angoisse. Objectif : Le but de cette étude est d’identifier et de comprendre les compétences permettant aux infirmiers d’améliorer les soins interculturels auprès des immigrants en milieu hospitalier. Méthode : Deux bases de données ont été consultées : CINHAL et PUBMED. Pour cette étude, quatre articles qualitatifs et deux articles quantitatifs publiés entre 2007 et 2017, avec des facteurs d’inclusion et d’exclusion ont été sélectionnés. Ils ont été analysés avec la grille de Fortin. Résultats : Les résultats de cette étude mettent en évidence les différents obstacles qui influencent la relation soignant-soigné ainsi que l’importance de développer la compétence culturelle chez les infirmier-ère-s. Conclusion : Le personnel médical, à tous les niveaux, doit disposer de bonnes compétences en communication afin d'éviter tout malentendu avec les patients. Pour offrir des soins interculturels de haute qualité, les infirmier-ère-s ont besoin de comprendre les modèles explicatifs de la maladie et du système de santé de l’individu grâce au modèle de processus de Campinha-Bacote. Les enseignants peuvent aussi utiliser ce modèle afin d’enseigner aux étudiants en soins infirmiers les bases de celuici. Les institutions hospitalières doivent garantir l'efficacité de la communication entre les patients et les soignants ainsi qu’offrir des formations sur la compétence culturelle.
Interlibrary Lending Among Selected Research & Public Libraries in Kwara State
Creators: name: Momoh, Emmanuel
name: Oyewopo Oyekunle Adewale
Publisher: name: figshare
Year: 2021
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications
subject: 80706 Librarianship

description: This study was undertaken to investigate interlibrary lending among selected research and public libraries in Kwara State. The study which used survey method distributed forty-four copies of the questionnaire and retrieved all which were used for the research.
Findings revealed that interlibrary lending was done to complement library collections and also to ensure a better access to information resources for library users. Among the various information resources textbooks, journals and reference materials were majorly used.
In addition, physical contact was utilised as the delivery method for interlibrary lending as opposed to the use of post, emails and social media. Some challenges to interlibrary lending are insufficient funding, poor infrastructural development and poor interest in library cooperation.
Finally, appropriate recommendations such as the provision of funds to acquire current information resources, adoption of technological innovations and also building relevant infrastructure were put forward to solve the challenges highlighted by the study.
title: Les barrières, obstacles et / ou limites du personnel infirmier concernant la prévention primaire des escarres / plaies de pression selon les recommandations, chez les patients à risque
title: Les barrières, obstacles et / ou limites du personnel infirmier concernant la prévention primaire des escarres / plaies de pression selon les recommandations, chez les patients à risque
titleType: AlternativeTitle
Creators: name: Rose, Florian
name: Thaqi, Sonita
Publisher: name: Unknown
Year: 0
Subjects: subject: infirmière
subject: escarres
subject: plaies de pression
subject: prévention primaire
subject: obstacle
subject: barrière

description: Contexte : Les escarres sont une problématique toujours d’actualité dans le milieu des soins malgré l’existence de multiples outils et programmes de prévention. Les infirmières ont un rôle primordial dans la prévention des escarres. Néanmoins, des barrières et obstacles à la prévention des escarres sont présents chez les infirmières. Objectif : Identifier les barrières, obstacles et ou limites des infirmières dans leur pratique courante qui entravent une prévention optimale des escarres chez les patients à risque. Méthode : Critères de sélection : Prévention primaire des escarres effectuée par des infirmières diplômées auprès de patients adultes et âgés en milieu hospitalier ou de long séjour. Cadre théorique : Modèle conceptuel de Neuman Stratégie de recherche : Les bases de données CINAHL et PUBMED ont été consultées et ont permis de retenir 6 articles datés de 2010 à 2015. Ces articles ont été analysés avec les grilles de Fortin. Résultats : Des agents stressants interpersonnels / extrapersonnels tels que les connaissances, les attitudes, l’environnement et la culture des soins ont été identifiés. Discussion : Des connaissances insuffisantes, des attitudes et une culture des soins non favorables à la prévention des escarres ont des influences sur la priorisation et la responsabilité des infirmières face à la prévention des escarres. Les infirmières responsables et/ou cliniciennes devraient tenir compte des diverses barrières du personnel infirmier et les identifier dans leur milieu clinique. Des poursuites de recherches devraient être entreprises afin de préciser et augmenter la validité des résultats
Dynamic Proportional Rankings
Creators: name: Israel, Jonas
name: Brill, Markus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: Proportional ranking rules aggregate approval-style preferences of agents into a collective ranking such that groups of agents with similar preferences are adequately represented. Motivated by the application of live Q&A platforms, where submitted questions need to be ranked based on the interests of the audience, we study a dynamic extension of the proportional rankings setting. In our setting, the goal is to maintain the proportionality of a ranking when alternatives (i.e., questions) -- not necessarily from the top of the ranking -- get selected sequentially. We propose generalizations of well-known aggregation rules to this setting and study their monotonicity and proportionality properties. We also evaluate the performance of these rules experimentally, using realistic probabilistic assumptions on the selection procedure.
The production of Tsallis entropy in the limit of weak chaos and a new indicator of chaoticity
Creators: name: Lukes-Gerakopoulos, G.
name: Voglis, N.
name: Efthymiopoulos, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the connection between the appearance of a `metastable' behavior of weakly chaotic orbits, characterized by a constant rate of increase of the Tsallis q-entropy (Tsallis 1988), and the solutions of the variational equations of motion for the same orbits. We demonstrate that the variational equations yield transient solutions, lasting for long time intervals, during which the length of deviation vectors of nearby orbits grows in time almost as a power-law. The associated power exponent can be simply related to the entropic exponent for which the q-entropy exhibits a constant rate of increase. This analysis leads to the definition of a new sensitive indicator distinguishing regular from weakly chaotic orbits, that we call `Average Power Law Exponent' (APLE). We compare the APLE with other established indicators of the literature. In particular, we give examples of application of the APLE in a) a thin separatrix layer of the standard map, b) the stickiness region around an island of stability in the same map, and c) the web of resonances of a 4D symplectic map. In all these cases we identify weakly chaotic orbits exhibiting the `metastable' behavior associated with the Tsallis q-entropy.
description: 19 pages, 12 figures, accepted for publication by Physica A
Applying multidimensional computerized adaptive testing to the MSQOL-54: a simulation study
Creators: name: Giordano, Andrea
name: Testa, Silvia
name: Bassi, Marta
name: Cilia, Sabina
name: Bertolotto, Antonio
name: Quartuccio, Maria Esmeralda
name: Pietrolongo, Erika
name: Falautano, Monica
name: Grobberio, Monica
name: Niccolai, Claudia
name: Allegri, Beatrice
name: Viterbo, Rosa Gemma
name: Confalonieri, Paolo
name: Giovannetti, Ambra Mara
name: Cocco, Eleonora
name: Grasso, Maria Grazia
name: Lugaresi, Alessandra
name: Ferriani, Elisa
name: Nocentini, Ugo
name: Zaffaroni, Mauro
name: De Livera, Alysha
name: Jelinek, George
name: Solari, Alessandra
name: Rosato, Rosalba
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 4203
subject: Health services and systems
classificationCode: 4206
subject: Public health

description: Background: The Multiple Sclerosis Quality of Life-54 (MSQOL-54) is one of the most commonly-used MS-specific health-related quality of life (HRQOL) measures. It is a multidimensional, MS-specific HRQOL inventory, which includes the generic SF-36 core items, supplemented with 18 MS-targeted items. Availability of an adaptive short version providing immediate item scoring may improve instrument usability and validity. However, multidimensional computerized adaptive testing (MCAT) has not been previously applied to MSQOL-54 items. We thus aimed to apply MCAT to the MSQOL-54 and assess its performance. Methods: Responses from a large international sample of 3669 MS patients were assessed. We calibrated 52 (of the 54) items using bifactor graded response model (10 group factors and one general HRQOL factor). Then, eight simulations were run with different termination criteria: standard errors (SE) for the general factor and group factors set to different values, and change in factor estimates from one item to the next set at < 0.01 for both the general and the group factors. Performance of the MCAT was assessed by the number of administered items, root mean square difference (RMSD), and correlation. Results: Eight items were removed due to local dependency. The simulation with SE set to 0.32 (general factor), and no SE thresholds (group factors) provided satisfactory performance: the median number of administered items was 24, RMSD was 0.32, and correlation was 0.94. Conclusions: Compared to the full-length MSQOL-54, the simulated MCAT required fewer items without losing precision for the general HRQOL factor. Further work is needed to add/integrate/revise MSQOL-54 items in order to make the calibration and MCAT performance efficient also on group factors, so that the MCAT version may be used in clinical practice and research.
MÈTODES MESOSCÒPICS I MICRÒSCOPICS D'ESTUDI DE MONOCAPES DE COMPOSTOS AMFIFÍLICS
Creators: name: Martinez-Seara, Hector
Publisher: name: Zenodo
Year: 2005
Subjects: monolayers

description: DIPLOMA D’ESTUDIS AVANÇATS (DEA)

Universiad de Barcelona

Departament d’Enginyeria Química i Química Física

Autor: Hector Martinez-Seara Monne

Date: 28 de juny de 2005

Director: Dr. Ramon Reigada

Director: Dr. Francesc Sagués
Emulating the Z-100 Computer
Creators: name: Black, Margaret
Publisher: name: Zenodo
Year: 2024

description: This poster presents the first working emulator of the Zenith Z-100 personal computer. The Z-100 was released by Zenith Data Systems and Heathkit in 1982. Although it was contemporary with IBM's 5150, the ancestor of modern PCs, it is not PC-compatible, and Z-100 software can only run on that computer. Due to the dwindling number of extent Z-100s, and the absence until now of any emulator to run Z-100 programs, a vast corpus of Z-100 data is irretrievable.

Despite similarities to the PC, such as the same processor and a variant of Microsoft DOS ("Z-DOS"), the Z-100 had many idiosyncrasies, including memory-mapped video, a second processor, and its own BIOS, ports, and interrupts. Its video, highly advanced for the time, led to its adoption by the US Air Force and Clarkson University [3]. Much creative work was developed on this computer, including games, utilities, documents, spreadsheets, and blueprints. Z-100 disks can be read by a modern PC with a 5 1/4" drive; however, Z-100 programs will not run on a PC or existing emulator, and word-processing save files, BASIC files, and spreadsheets are saved in compressed, proprietary formats unreadable without their original programs.

Our Z-100 emulator, posted publicly [1], models all of the system necessary to boot Z-DOS and run many Z-100 programs. We modeled the processors, glue logic, video, and the wrote the first timing-accurate simulation of the WD1797 floppy controller. We tested using a monitor ROM and floppy disk images from a Z-100 in our possession. Our emulator runs Z-DOS, most of the Z-DOS core utilities, the GALAHAD word processor, the Multiplan spreadsheet program, and Z-BASIC. We tested disk images containing BASIC games, spreadsheets, and word documents, all saved in proprietary formats previously unreadable. Our emulated programs opened all these data files successfully and allowed us to extract them to text files.

[1] http://www.github.com/mdblack/Zenith-Z-100

[2] Matta, "A Zenith Z-100 Emulator", MS Thesis, Bridgewater State University, 2021.

[3] "Clarkson College to Issue Computers to Student Body". Silicon Gulch Gazette. February 1983.

[4] "Zenith Z-100 Technical Manual", Zenith Data Systems, 1982.
Waiter-Client Triangle-Factor Game on the Edges of the Complete Graph
Creators: name: Dvořák, Vojtěch
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C57

description: Consider the following game played by two players, called Waiter and Client, on the edges of $K_n$ (where $n$ is divisible by $3$). Initially, all the edges are unclaimed. In each round, Waiter picks two yet unclaimed edges. Client then chooses one of these two edges to be added to Waiter's graph and one to be added to Client's graph. Waiter wins if she forces Client to create a $K_3$-factor in Client's graph at some point, while if she does not manage to do that, Client wins. It is not difficult to see that for large enough $n$, Waiter has a winning strategy. The question considered by Clemens et al. is how long the game will last if Waiter aims to win as soon as possible, Client aims to delay her as much as possible, and both players play optimally. Denote this optimal number of rounds by $τ_{WC}(\mathcal{F}_{n,K_3-\text{fac}},1 ) $. Clemens et al. proved that $\frac{13}{12}n \leq τ_{WC}(\mathcal{F}_{n,K_3-\text{fac}},1 ) \leq \frac{7}{6}n+o(n) $, and conjectured that $τ_{WC}(\mathcal{F}_{n,K_3-\text{fac}},1 ) = \frac{7}{6}n+o(n) $. In this note, we verify their conjecture.
description: 9 pages
Double beta decay: present status
Creators: name: Barabash, A. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The present status of double beta decay experiments (including the search for $2β^{+}$, EC$β^{+}$ and ECEC processes) are reviewed. The results of the most sensitive experiments are discussed. Average and recommended half-life values for two-neutrino double beta decay are presented. Conservative upper limits on effective Majorana neutrino mass and the coupling constant of the Majoron to the neutrino are established as $ < 0.75$ eV and $ < 1.9 \cdot 10^{-4}$, respectively. Proposals for future double beta decay experiments with a sensitivity for the $$ at the level of (0.01-0.1) eV are considered.
description: 33 pages included 7 figures and 14 tables; an extended version of the invited talk at 13th Lomonosov Conference of Elementary Particle Physics, 23-29 August, 2007, Moscow, Russia
Evolving inductive generalization via genetic self-assembly
Creators: name: Fuechslin, Rudolf M.
name: Maeke, Thomas
name: Tangen, Uwe
name: McCaskill, John S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: We propose that genetic encoding of self-assembling components greatly enhances the evolution of complex systems and provides an efficient platform for inductive generalization, i.e. the inductive derivation of a solution to a problem with a potentially infinite number of instances from a limited set of test examples. We exemplify this in simulations by evolving scalable circuitry for several problems. One of them, digital multiplication, has been intensively studied in recent years, where hitherto the evolutionary design of only specific small multipliers was achieved. The fact that this and other problems can be solved in full generality employing self-assembly sheds light on the evolutionary role of self-assembly in biology and is of relevance for the design of complex systems in nano- and bionanotechnology.
A taxonomy of grain boundary migration mechanisms via displacement texture characterization
Creators: name: Chesser, Ian
name: Runnels, Brandon
name: Holm, Elizabeth
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Atomistic simulations provide the most detailed picture of grain boundary (GB) migration currently available. Nevertheless, extracting unit mechanisms from atomistic simulation data is difficult because of the zoo of competing, geometrically complex 3D atomic rearrangement processes. In this work, we introduce the displacement texture characterization framework for analyzing atomic rearrangement events during GB migration, combining ideas from slip vector analysis, bicrystallography and optimal transportation. Two types of decompositions of displacement data are described: the shear-shuffle and min-shuffle decomposition. The former is used to extract shuffling patterns from shear coupled migration trajectories and the latter is used to analyze temperature dependent shuffling mechanisms. As an application of the displacement texture framework, we characterize the GB geometry dependence of shuffling mechanisms for a crystallographically diverse set of mobile GBs in FCC Ni bicrystals. Two scientific contributions from this analysis include 1) an explanation of the boundary plane dependence of shuffling patterns via metastable GB geometry and 2) a taxonomy of multimodal constrained GB migration mechanisms which may include multiple competing shuffling patterns, period doubling effects, distinct sliding and shear coupling events, and GB self diffusion.
A comparison between two methods of fatigue lifetime predictions for random loads
Creators: name: Jonk, Eric Frederick
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this thesis is to compare the results obtained from two different methods to account for fatigue, the Root Mean Square (RMS) and the Histogram, to determine which method better represents reality. The test procedure used subjected compact tension specimens to randomly selected block loads, then compared the actual lifetimes obtained by experiment to the lifetimes predicted by the methods. A statistical analysis was attempted to determine which method was superior. The results of the analysis suggest that the RMS model is superior. However, no firm conclusions can be drawn, since the data obtained suggest that the Paris Law parameters used in the analysis are possibly biased.
Finding Rigged Configurations From Paths
Creators: name: Sakamoto, Reiho
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We review reformulation of the map from tensor product of crystals to the rigged configurations in terms of the energy function of affine crystals. Especially, we give intuitive picture of the inverse scattering formalism for the periodic box-ball systems formulated by Kuniba-Takagi-Takenouchi (arXiv:math/0602481v2).
description: 16 pages, accepted version for proceedings of ``Expansion of Combinatorial Representation Theory" (RIMS, Kyoto University, October 2007)
Script - Over By Christmas - Rehearsal Draft
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Over By Christmas was a free large-scale community musical and dramatic event commemorating the early days of the First World War and the role that the railways played in the troops’ departure for the Front. It toured railway stations throughout Cheshire and Greater Manchester, including rural heritage stations and Manchester Piccadilly, and culminating in performances in St Pancras International, London. Performances were also staged at Tatton Park and Chester Cathedral and appeared on BBC and ITV. Over by Christmas won the Performing Arts category at the 2015 Cheshire West And Cheshire Arts Awards, and a national community rail award (ACoRP) for its impact on communities. The piece involved over 350 participants, over 1000 school children, and attracted a total audience of over 20,000. This script was written and the production directed to accommodate the architecture of railway platforms, across which the play was performed, and the time available for performances between arrivals and departures of trains. It was performed 47 times in more than 25 locations, from 7th September to 12th November 2014.
Charakterystyka chemiczna i mineralogiczna wybranych łupków pochodzących z Legnicko-Głogowskiego okręgu miedziowego
Creators: name: Bakalarz, Alicja
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2014
Subjects: Łupek, charakterystyka

description: Łupek miedzionośny, Drzymała J., Kowalczuk P.B. (red.), WGGG PWr, Wrocław, ISBN 978-83-937788-6-7
Particle production at a finite potential step: Transition from Euler-Heisenberg to Klein paradox
Creators: name: Evans, Stefan
name: Rafelski, Johann
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Spontaneous pair production for spin-$1/2$ and spin-$0$ particles is explored in a quantitative manner for a static $\tanh$-Sauter potential step (SS), evaluating the imaginary part of the effective action. We provide finite-valued per unit-surface results, including the exact sharp-edge Klein paradox (KP) limit, which is the upper bound to pair production. At the vacuum instability threshold the spin-$0$ particle production can surpass that for the spin-$1/2$ rate. Presenting the effect of two opposite sign Sauter potential steps creating a well we show that spin-$0$ pair production, contrary to the case of spin-$1/2$, requires a smoothly sloped wall.
description: 10 pages, 6 figures
CP violation in Charged Higgs Bosons decays $H^\pm \to W^\pm (γ, Z)$ in the Minimal Supersymmetric Standard Model (MSSM)
Creators: name: Arhrib, Abdesslam
name: Benbrik, Rachid
name: Chabab, Mohamed
name: Chang, Wei Ting
name: Yuan, Tzu-Chiang
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: One loop mediated charged Higgs bosons decays $H^\pm\to W^\pm V$, $V= Z, γ$ are studied in the Minimal Supersymmetric Standard Model (MSSM) with and without CP violating phases. We evaluate the MSSM contributions to these processes taking into account $B\to X_sγ$ constraint as well as experimental constraints on the MSSM parameters. In the MSSM, we found that in the intermediate range of $\tanβ\la 10$ and for large A_t and large $μ$, where the lightest top squark becomes very light and hence non-decoupled, the branching ratio of $H^\pm \to W^{\pm} Z$ can be of the order 10^{-3} while the branching ratio of $H^\pm \to W^{\pm} γ$ is of the order 10^{-5}. We found also that the CP violating phases of soft SUSY parameters can modify the branching ratio by about one order of magnitude. We also show that MSSM with CP violating phases lead to CP-violating asymmetry in the decays $H^+ \to W^+V$ and $H^- \to W^-V$. Such CP asymmetry can be rather large and can reach 80% in some region of parameter space.
description: Invited talk at CTP Symposium on Supersymmetry at LHC: Theoretical and Experimental Prospectives, Cario, Egypt, 11-14 Mar 2007
Press release - Over By Christmas 2014
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Press Release for Theatre in the Quarter's 2014 production of Over By Christmas.
Three X-ray transients in M31 observed with Swift
Creators: name: Voss, R.
name: Pietsch, W.
name: Haberl, F.
name: Stiele, H.
name: Greiner, J.
name: Sala, G.
name: Hartmann, D. H.
name: Hatzidimitriou, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The purpose of this study is to find transient X-ray sources in M31, and to investigate and classify their nature. Three X-ray transients were observed with Swift. For each of the three X-ray transients we use the Swift X-ray and optical data together with observations from XMM-Newton and Chandra to investigate the lightcurves and the spectra of the outburst, and thereby to identify the source types. The outburst of XMMU J004215.8+411924 lasted for about one month. The source had a hard power-law spectrum with a photon index of 1.6. It was previously identified as a Be/X-ray binary based on the optical identification with a star. However, we show that with improved source coordinates it is clear that the optical source is not the counterpart to the X-ray source. The source SWIFT J004217.3+411532 had a bright outburst, after which it slowly decayed over half a year. The spectrum was soft, corresponding to a thermal accretion disk with innermost temperature of 250-600 eV. The source was not seen in the optical, and the soft spectrum indicates that the source is most likely a black hole low mass X-ray binary. M31N 2006-11a is a nova that was previously observed in the optical. We detected it both in X-rays and UV with Swift half a year after the optical maximum, after which it decayed below the Swift detection threshold within a month. The spectrum of the X-ray transient can be modelled by a black-body with a temperature of 50 eV. We use catalogues of X-ray transients in M31 to estimate their rate, and we find a lower limit of 9/yr.
description: 5 pages, to appear in A&A
A recently quenched isolated dwarf galaxy outside of the Local Group environment
Creators: name: Polzin, Ava
name: van Dokkum, Pieter
name: Danieli, Shany
name: Greco, Johnny P.
name: Romanowsky, Aaron J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the serendipitous identification of a low mass ($M_* \sim 2\times 10^6 \, \mathrm{M}_\odot$), isolated, likely quenched dwarf galaxy in the "foreground" of the COSMOS-CANDELS field. From deep Hubble Space Telescope (HST) imaging we infer a surface brightness fluctuation distance for COSMOS-dw1 of $D_{\mathrm{SBF}} = 22 \pm 3$ Mpc, which is consistent with its radial velocity of $cz = 1222 \pm 64$ km s$^{-1}$ via Keck/LRIS. At this distance, the galaxy is 1.4 Mpc in projection from its nearest massive neighbor. We do not detect significant H$α$ emission (EW(H$α$)$ = -0.4 \pm 0.5$ angstroms), suggesting that COSMOS dw1 is likely quenched. Very little is currently known about isolated quenched galaxies in this mass regime. Such galaxies are thought to be rare, as there is no obvious mechanism to permanently stop star formation in them; to date there are only four examples of well-studied quenched field dwarfs, only two of which appear to have quenched in isolation. COSMOS-dw1 is the first example outside of the immediate vicinity of the Local Group. COSMOS-dw1 has a relatively weak D$_\mathrm{n}$4000 break and the HST data show a clump of blue stars indicating that star formation ceased only recently. We speculate that COSMOS-dw1 was quenched due to internal feedback, which was able to temporarily suspend star formation. In this scenario the expectation is that quenched isolated galaxies with masses $M_*=10^6 - 10^7$ M$_{\odot}$ generally have luminosity-weighted ages $\lesssim 1$ Gyr.
description: 8 pages, 4 figures
Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials
Creators: name: Caravati, S.
name: Bernasconi, M.
name: Kuehne, T. D.
name: Krack, M.
name: Parrinello, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Chalcogenide alloys are materials of interest for optical recording and non-volatile memories. We perform ab-initio molecular dynamics simulations aiming at shading light onto the structure of amorphous Ge2Sb2Te5 (GST), the prototypical material in this class. First principles simulations show that amorphous GST obtained by quenching from the liquid phase displays two types of short range order. One third of Ge atoms are in a tetrahedral environment while the remaining Ge, Sb and Te atoms display a defective octahedral environment, reminiscent of cubic crystalline GST.
description: 6 pages, 10 figures including supplementary material
Trochodota Ludwig 1891
Creators: name: Reich, Mike
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Holothuroidea
Apodida
Chiridotidae
Trochodota

description: Trochodota Ludwig, 1891
 The genus Trochodota was introduced by Ludwig on page 359 (fascicle 13/14 of Ludwig 1889-1892 = Ludwig 1891b; cf. also Waterhouse 1902: p. 385, Schulze et al. 1938: p. 3568 and Neave 1940: p. 574) of his book; since then, the name has been used frequently and partially emended (e.g., Ludwig 1892b; Clark 1908; Pawson 1971b; Rowe 1976). Ludwig (1889–1892) listed two species within his new genus:
 (1) Trochodota studeri (Théel) (Ludwig 1891b: p. 359) [= Taeniogyrus purpureus (Lesson, 1830)]; (2) Trochodota venusta (Semon) (Ludwig 1891b: p. 359) [= Taeniogyrus venustus (Semon, 1887)].
 Finally, as recently stated by O’Loughlin & VandenSpiegel (2010), this genus is a younger synonym of Taeniogyrus Semper, 1867.
description: Published as part of Reich, Mike, 2015, A short biography of Hubert Ludwig and a note on the publication dates of his monograph Die Seewalzen (1889 – 1892), pp. 332-344 in Zootaxa 4052 (2) on pages 332-344, DOI: 10.11646/zootaxa.4052.3.3, http://zenodo.org/record/237822