cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Controlling fingering instabilities in Hele-Shaw flows in the presence of wetting film effects
Creators: name: Anjos, Pedro H. A.
name: Zhao, M.
name: Lowengrub, J.
name: Bao, Weizhu
name: Li, Shuwang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, the interfacial motion between two immiscible viscous fluids in the confined geometry of a Hele-Shaw cell is studied. We consider the influence of a thin wetting film trailing behind the displaced fluid, which dynamically affects the pressure drop at the fluid-fluid interface by introducing a nonlinear dependence on the interfacial velocity. In this framework, two cases of interest are analyzed: The injection-driven flow (expanding evolution), and the lifting plate flow (shrinking evolution). In particular, we investigate the possibility of controlling the development of fingering instabilities in these two different Hele-Shaw setups when wetting effects are taken into account. By employing linear stability theory, we find the proper time-dependent injection rate $Q(t)$ and the time-dependent lifting speed ${\dot b}(t)$ required to control the number of emerging fingers during the expanding and shrinking evolution, respectively. Our results indicate that the consideration of wetting leads to an increase in the magnitude of $Q(t)$ [and ${\dot b}(t)$] in comparison to the non-wetting strategy. Moreover, a spectrally accurate boundary integral approach is utilized to examine the validity and effectiveness of the controlling protocols at the fully nonlinear regime of the dynamics and confirms that the proposed injection and lifting schemes are feasible strategies to prescribe the morphologies of the resulting patterns in the presence of the wetting film.
description: 16 pages, 7 figures
Visually Analyzing Latent Accessibility Clusters of Urban POIs
Creators: name: Kamw, Farah
name: AL-Dohuki, Shamal
name: Zhao, Ye
name: Yang, Jing
name: Ye, Xinyue
name: Chen, Wei
Publisher: name: The Eurographics Association
Year: 2019

description: Accessibility of urban POIs (Points of Interest) is a key topic in a variety of urban sciences and applications as it reflects inherent city design, transportation, and population flow features. Isochrone maps and other techniques have been used to identify and display reachable regions from given POIs. In addition, domain experts further want to study the distribution effects of accessibility in the urban space such as finding spatial regions that have different accessibility patterns. Such patterns can be manifested by clustering POIs based on their accessibility of different time periods under different traffic conditions. In this paper, we present a visualization system that helps users to find and visualize Latent Accessibility Clusters (LACs) of POIs. The LACs discover temporally changing urban sub-regions (including nearby POIs) with disparate accessibilities at different times. LACs are computed by a POIGraph which connects POIs into a graph structure by extending the dual road network of the corresponding city. The LAC computation is facilitated by graph traversal over the POIGraph. By visualizing the LAC regions on the map, users can visually study the hidden patterns of spatial accessibility. It can contribute to urban transportation, planning, business, and related social sciences.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Analyzing Movement and Events
description: 43
description: 47
description: Farah Kamw, Shamal AL-Dohuki, Ye Zhao, Jing Yang, Xinyue Ye, and Wei Chen
First Law, Counterterms and Kerr-AdS_5 Black Holes
Creators: name: Awad, Adel M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the counterterm subtraction technique to calculate the action and other quantities for the Kerr--AdS black hole in five dimensions using two boundary metrics; the Einstein universe and rotating Einstein universe with arbitrary angular velocity. In both cases, the resulting thermodynamic quantities satisfy the first law of thermodynamics. We point out that the reason for the violation of the first law in previous calculations is that the rotating Einstein universe, used as a boundary metric, was rotating with an angular velocity that depends on the black hole rotation parameter. Using a new coordinate system with a boundary metric that has an arbitrary angular velocity, one can show that the resulting physical quantities satisfy the first law.
description: 19 pages, 1 figure
Contextualized Analysis of Movement Events
Creators: name: Chen, Siming
name: Andrienko, Gennady
name: Andrienko, Natalia
name: Doulkeridis, Christos
name: Koumparos, Athanasios
Publisher: name: The Eurographics Association
Year: 2019

description: For understanding the circumstances, causes, and consequences of events that may happen during movement (e.g., harsh brake, sharp turn), it is necessary to analyze event context. The context includes dynamic attributes of the moving objects before and after the event and external context elements such as other moving objects, weather, terrain, etc. To explore events in context, we propose an analytical workflow including event contextualization, context pattern detection, and exploration of the spatio-temporal distribution of the detected patterns. The approach involves clustering of events based on the similarity of their contexts and interactive visual techniques for exploration of the distribution of the clusters in time, geographic space, and multidimensional attribute space. In close collaboration with domain experts, we apply our method to real-world vehicle trajectories with the purpose of identifying and investigating potentially dangerous driving behaviors.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Analyzing Movement and Events
description: 49
description: 53
description: Siming Chen, Gennady Andrienko, Natalia Andrienko, Christos Doulkeridis, and Athanasios Koumparos
Macro-implementation of critical thinking in British Columbia's social studies curriculum
Creators: name: Ford, Carole
Publisher: name: University of British Columbia
Year: 2010

description: This study investigated how macro—implementation occurs within the British Columbia Ministry of Education. In particular, the Social Studies Curriculum Guide. Grade One-Grade Seven (1983) and related student textbooks, teacher videotapes, evaluation reports and other implementation support materials were examined to determine how the policy "critical thinking and problem-solving skills," a key component of the curriculum, was interpreted. Interviews (N=15) with relevant Ministry coordinators, committee chairpersons and members, and authors/ editors/consultants were audiotaped and later transcribed for analysis in light of the existing macro-implementation literature. It was found that the curriculum lacked clarity, was perceived variously by different policy developers, and was interpreted in discrepant ways in implementation materials. Ministry efforts to implement "critical thinking and problem-solving skills" appear to have been thwarted by lack of initial policy clarity; inconsistent liaison within the Ministry to facilitate shared expertise, understanding, and positive rapport; as well as insufficient attention to capacity building, particularly of Ministry coordinators responsible for monitoring each phase of the policy. Capacity needs highlighted in this study included adequate working conditions for developing complex policy, knowledge of the policy and its implications, as well as understanding the process of change. Future implementation prospects, may profit from research which focusses on exemplary ministry macro-implementation plans and those factors which enhance capacity building, liaison, and policy clarity.
Interactive Pattern Analysis of Multiple T-Maze Data
Creators: name: Bechtold, Fabrizia
name: Abraham, Hrvoje
name: Splechtna, Rainer
name: Matkovic, Krešimir
Publisher: name: The Eurographics Association
Year: 2019

description: The Multiple T-Maze study is one of the standard methods used in ethology and behaviourism. In this paper we extend the current state of the art in analysis of Multiple T-Maze data for animal cohorts. We focus on pattern finding within animals' paths. We introduce the Sequence View which makes it possible to quickly spot patterns and to search for specific sub-paths in animal paths. Further, we also evaluate four different metrics for string comparison and two widely used embeddings to support interactive clustering. All views are fully integrated in a coordinated multiple views system and support active brushing. This research represents a step towards (semi)-automatic clustering for Multiple T-Maze cohort data, which will significantly improve the Multiple T-Maze data analysis.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Analyzing Movement and Events
description: 55
description: 59
description: Fabrizia Bechtold, Hrvoje Abraham, Rainer Splechtna, and Krešimir Matkovic
How accurate are EOM-CC4 vertical excitation energies?
Creators: name: Loos, Pierre-François
name: Matthews, Devin A.
name: Lipparini, Filippo
name: Jacquemin, Denis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We report the first investigation of the performance of EOM-CC4 -- an approximate equation-of-motion coupled-cluster model which includes iterative quadruple excitations -- for vertical excitation energies in molecular systems. By considering a set of 28 excited states in 10 small molecules for which we have computed CCSDTQP and FCI reference energies, we show that, in the case of excited states with a dominant contribution from the single excitations, CC4 yields excitation energies with sub-kJ~mol$^{-1}$ accuracy (i.e., error below $0.01$ eV), in very close agreement with its more expensive CCSDTQ parent. Therefore, if one aims at high accuracy, CC4 stands as a highly competitive approximate method to model molecular excited states, with a significant improvement over both CC3 and CCSDT. Our results also evidence that, although the same qualitative conclusions hold, one cannot reach the same level of accuracy for transitions with a dominant contribution from the double excitations.
description: 6 pages, 2 figures
Particle transfer in braneworld collisions
Creators: name: Saffin, Paul M.
name: Tranberg, Anders
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the behaviour of fermions localized on moving kinks as these collide with either antikinks or spacetime boundaries. We numerically solve for the evolution of the scalar kinks and the bound (i.e. localized) fermion modes, and calculate the number of fermions transfered to the antikink and boundary in terms of Bogoliubov coefficients. Interpreting the boundary as the brane on which we live, this models the ability of fermions on branes incoming from the bulk to ``stick'' on the world brane, even when the incoming branes bounce back into the bulk.
description: 17 pages, 15 figures. New version has clearer discussion of boundary conditions, and corrects a typo
Jet and leading hadron production in d+Au collisions in the PHENIX experiment
Creators: name: Sakaguchi, Takao
Publisher: name: Zenodo
Year: 2021
Subjects: hp16
phenix
d+au
jet
3he+au
π0
η
raa
nuclear
modification
cnm effects

description: Talk presented at the Hard and Electromagnetic Probes 2016 conference
Rapid-response radio observations of short GRB 181123B with the Australia Telescope Compact Array
Creators: name: Anderson, G. E.
name: Bell, M. E.
name: Stevens, J.
name: Aksulu, M. D.
name: Miller-Jones, J. C. A.
name: van der Horst, A. J.
name: Wijers, R. A. M . J.
name: Rowlinson, A.
name: Bahramian, A.
name: Hancock, P. J.
name: Macquart, J. -P.
name: Ryder, S. D.
name: Plotkin, R. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We introduce the Australia Telescope Compact Array (ATCA) rapid-response mode by presenting the first successful trigger on the short-duration gamma-ray burst (GRB) 181123B. Early-time radio observations of short GRBs may provide vital insights into the radio afterglow properties of Advanced LIGO- and Virgo-detected gravitational wave events, which will in turn inform follow-up strategies to search for counterparts within their large positional uncertainties. The ATCA was on target within 12.6 hr post-burst, when the source had risen above the horizon. While no radio afterglow was detected during the 8.3 hr observation, we obtained force-fitted flux densities of $7 \pm 12$ and $15 \pm 11~μ$Jy at 5.5 and 9 GHz, respectively. Afterglow modelling of GRB 181123B showed that the addition of the ATCA force-fitted radio flux densities to the Swift X-ray Telescope detections provided more stringent constraints on the fraction of thermal energy in the electrons (log$ε_e = -0.75^{+0.39}_{-0.40}$ rather than log$ε_e = -1.13^{+0.82}_{-1.2}$ derived without the inclusion of the ATCA values), which is consistent with the range of typical $ε_e$ derived from GRB afterglow modelling. This allowed us to predict that the forward shock may have peaked in the radio band $\sim10$ days post-burst, producing detectable radio emission $\gtrsim3-4$ days post-burst. Overall, we demonstrate the potential for extremely rapid radio follow-up of transients and the importance of triggered radio observations for constraining GRB blast wave properties, regardless of whether there is a detection, via the inclusion of force-fitted radio flux densities in afterglow modelling efforts.
description: 15 pages, 7 figures, accepted for publication in MNRAS
Visual Analytics of Event Data using Multiple Mining Methods
Creators: name: Adnan, Muhammad
name: Nguyen, Phong H.
name: Ruddle, Roy A.
name: Turkay, Cagatay
Publisher: name: The Eurographics Association
Year: 2019
Subjects: Human
centered computing
Visual analytics

description: Most researchers use a single method of mining to analyze event data. This paper uses case studies from two very different domains (electronic health records and cybersecurity) to investigate how researchers can gain breakthrough insights by combining multiple event mining methods in a visual analytics workflow. The aim of the health case study was to identify patterns of missing values, which was daunting because the 615 million missing values occurred in 43,219 combinations of fields. However, a workflow that involved exclusive set intersections (ESI), frequent itemset mining (FIM) and then two more ESI steps allowed us to identify that 82% of the missing values were from just 244 combinations. The cybersecurity case study's aim was to understand users' behavior from logs that contained 300 types of action, gathered from 15,000 sessions and 1,400 users. Sequential frequent pattern mining (SFPM) and ESI highlighted some patterns in common, and others that were not. For the latter, SFPM stood out for its ability to action sequences that were buried within otherwise different sessions, and ESI detected subtle signals that were missed by SFPM. In summary, this paper demonstrates the importance of using multiple perspectives, complementary set mining methods and a diverse workflow when using visual analytics to analyze complex event data.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Analyzing Movement and Events
description: 61
description: 65
description: Muhammad Adnan, Phong H. Nguyen, Roy A. Ruddle, and Cagatay Turkay
description: CCS Concepts: Human-centered computing --> Visual analytics
Transitions in the computational power of thermal states for measurement-based quantum computation
Creators: name: Barrett, Sean D.
name: Bartlett, Stephen D.
name: Doherty, Andrew C.
name: Jennings, David
name: Rudolph, Terry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the usefulness of the thermal state of a specific spin-lattice model for measurement-based quantum computing exhibits a transition between two distinct "phases" - one in which every state is a universal resource for quantum computation, and another in which any local measurement sequence can be simulated efficiently on a classical computer. Remarkably, this transition in computational power does not coincide with any phase transition, classical or quantum, in the underlying spin-lattice model.
description: 9 pages, 2 figures, v4 published version
Automatic design of quantum feature maps
Creators: name: Altares-López, Sergio
name: Ribeiro, Angela
name: García-Ripoll, Juan José
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We propose a new technique for the automatic generation of optimal ad-hoc ansätze for classification by using quantum support vector machine (QSVM). This efficient method is based on NSGA-II multiobjective genetic algorithms which allow both maximize the accuracy and minimize the ansatz size. It is demonstrated the validity of the technique by a practical example with a non-linear dataset, interpreting the resulting circuit and its outputs. We also show other application fields of the technique that reinforce the validity of the method, and a comparison with classical classifiers in order to understand the advantages of using quantum machine learning.
Bulk viscosity of gauge theory plasma at strong coupling
Creators: name: Buchel, Alex
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a lower bound on bulk viscosity of strongly coupled gauge theory plasmas. Using explicit example of the N=2^* gauge theory plasma we show that the bulk viscosity remains finite at a critical point with a divergent specific heat. We present an estimate for the bulk viscosity of QGP plasma at RHIC.
description: 5 pages, 4 figures
Visualizing Event Sequences as Oscillating Streams
Creators: name: Weaver, Chris
name: Etemadpour, Ronak
Publisher: name: The Eurographics Association
Year: 2019

description: In this paper, we introduce a new method to visually represent sequence structure in data. Like other methods for visualizing temporal or ordinal data, the representation directly maps absolute time or relative ordering of events from left to right horizontally. Unlike other methods, it also accumulates subsequences of events into streams that oscillate up and down vertically. By interactively adjusting the number of steps between vertical reversals, one can rapidly switch perspectives to show variation in event densities over time (one step), overall patterns of event accumulation (all steps), or short-range patterns of event accumulation (in between). In between, the representation reverses stream direction every N steps, accentuating variations in event accumulation while at the same time preserving visual continuity. We present a user study that compares the stream representation to Dotplots. The study validates the readability of the representation for effective visualization of sequence information in text data. It also shows how pairing stream and Dotplot views outperforms both of them individually for some analysis tasks.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Analyzing Movement and Events
description: 67
description: 71
description: Chris Weaver and Ronak Etemadpour
Intelligent Unmanned Explorer for Deep Space Exploration
Creators: name: Kubota, T.
name: Yoshimitsu, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.6.1

description: asteroids or comets have received remarkable attention in the world. In small body explorations, especially, detailed in-situ surface exploration by tiny rover is one of effective and fruitful means and is expected to make strong contributions towards scientific studies. JAXA ISAS is promoting MUSES C mission, which is the worlds first sample and return attempt to or from the near earth asteroid. Hayabusa spacecraft in MUSES C mission took the tiny rover, which was expected to perform the in-situ surface exploration by hopping. This paper describes the system design, mobility and intelligence of the developed unmanned explorer. This paper also presents the ground experimental results and the flight results.
description: Uploaded by ICIUS2007 Conference Organizer on behalf of the author(s). 8 pages, 10 figures, 4 tables
Radial velocity map of solar wind transients in the field of view of STEREO/HI1 on 3 and 4 April 2010
Creators: name: Li, Xiaolei
name: Wang, Yuming
name: Guo, Jingnan
name: Liu, Rui
name: Zhuang, Bin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The solar wind transients propagating out in the inner heliosphere can be observed in white-light images from Heliospheric Imager-1 (HI1), an instrument of the Sun Earth Connection Coronal and Heliospheric Investigation (SECCHI) on board the Solar Terrestrial Relations Observatory (STEREO), from two perspectives. The spatial velocity distribution inside solar wind transients is key to understanding their dynamic evolution processes. We generated a velocity map of transients in 3D space based on 2D white-light images and used it to estimate the expansion rate as well as some kinematic properties of solar wind transients. Based on the recently developed correlation-aided reconstruction (CORAR) method in our previous work, which can recognize and locate 3D solar wind transients from STEREO/HI1 image data, we further developped a new technique for deriving the spatial distribution of the radial velocities of the most pronounced features inside solar wind transients. The technique was applied to events including a coronal mass ejection (CME) and three small-scale transients, so-called blobs, observed by HI1 on 3-4 April 2010 to reconstruct their radial velocity maps. The results match the forward-modeling results, simulations, and in situ observations at $1$ AU fairly well. According to the obtained spatial distributions of height and radial velocity of the CME, we analyzed the self-similarity of the radial expansion of the CME ejecta. The dimensionless radial expansion rate of the northern and middle parts of the CME ejecta varies in the range of 0.7 - 1.0 at heliocentric distance between 25 Rs and 55Rs and the rate of the southern part in the range of 0.3 - 0.5, suggesting that the CME structure was distorted and shaped by the ambient solar wind. The technique we developed is expected to be applied to more events.
description: 24 pages, 8 figures, 1 table
An X-ray and Radio Study of the Hubble Frontier Field Cluster Abell S1063
Creators: name: Rahaman, Majidul
name: Raja, Ramij
name: Datta, Abhirup
name: Burns, Jack O
name: Alden, Brian
name: Rapetti, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results from \textit{Chandra} X-ray observations and 325 MHz Giant Metrewave Radio Telescope (GMRT) observations of the massive and X-ray luminous cluster of galaxies Abell S1063. We report the detection of large-scale \lq\lq excess brightness\rq\rq\ in the residual \textit{Chandra} X-ray surface brightness map, which extends at least 2.7 Mpc towards the north-east from the center of the cluster. We also present a high fidelity X-ray flux and temperature map using \textit{Chandra} archival data of 122 ksec, which shows the disturbed morphology in the cluster. The residual flux map shows the first observational confirmation of the merging axis proposed by earlier simulation by \citet{Gomez2012AJ....144...79G}. The average temperature within $R_{500}$ is $11.7 \pm 0.56$ keV, which makes AS1063 one of the hottest clusters in the nearby Universe. The integrated radio flux density at 325 MHz is found to be $62.0\pm6.3$ mJy. The integrated spectrum of the radio halo follows a power-law with a spectral index $α=-1.43\pm 0.13$. The radio halo is found to be significantly under-luminous, which favored for both the hadronic as well as the turbulent re-acceleration mechanism for its origin.
description: Accepted for publication in MNRAS (12 pages, 8 figures, 2 tables)
SurviVIS: Visual Analytics for Interactive Survival Analysis
Creators: name: Corvò, Alberto
name: Caballero, Humberto Simon Garcia
name: Westenberg, Michel A.
Publisher: name: The Eurographics Association
Year: 2019
Subjects: Applications
Visual Analytics

description: The increasing quantity of data in biomedical informatics is leading towards better patient profiling and personalized medicine. Lab tests, medical images, and clinical data represent extraordinary sources for patient characterization. While retrospective studies focus on finding correlations in this sheer volume of data, potential new biomarkers are difficult to identify. A common approach is to observe patient mortality with respect to different clinical variables in what is called survival analysis. Kaplan-Meier plots, also known as survival curves, are generally used to examine patient survival in retrospective and prognostic studies. The plot is very intuitive and hence very popular in the medical domain to disclose evidence of poor or good prognosis. However, the Kaplan-Meier plots are mostly static and the data exploration of the plotted cohorts can be performed only with additional analysis. There is a need to make survival plots interactive and to integrate potential prognostic data that may reveal correlations with disease progression. We introduce SurviVIS, a visual analytics approach for interactive survival analysis and data integration on Kaplan-Meier plots. We demonstrate our work on a melanoma dataset and in the perspective of a potential use case in precision imaging.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Applications of Visual Analytics
description: 73
description: 77
description: Alberto Corvò, Humberto Simon Garcia Caballero, and Michel A. Westenberg
description: CCS Concepts: Applications --> Visual Analytics
Optical and Thermodynamic Properties of a Rotating Dyonic Black Hole Spacetime in $\mathcal{N} = 2, U(1)^2$ gauged supergravity
Creators: name: Sharma, Prateek
name: Nandan, Hemwati
name: Papnoi, Uma
name: Chatterjee, Arindam Kumar
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The null geodesics and the distance of closest approach for photon around a rotating dyonic black hole in $\mathcal{N} = 2, U(1)^2$ gauged supergravity is studied. The phenomenon of black hole shadows with various black hole parameters has also analyzed. Further, the investigation of various thermodynamic properties for this black hole is performed with various thermodynamic parameters at the horizon. The heat capacity to study the thermodynamic stability of this black hole spacetime is also studied. The influence for different values of the black hole parameters $ ν$, $ e $, $ ν$, $ g $ and $N_{g}$ on the phenomenon of black hole shadows and thermodynamic parameters is also investigated visually.
First-principles study of a single-molecule magnet Mn_{12} monolayer on the Au(111) surface
Creators: name: Barraza-Lopez, Salvador
name: Avery, Michael C.
name: Park, Kyungwha
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic structure of a monolayer of single-molecule magnets Mn$_{12}$ on a Au(111) surface is studied using spin-polarized density-functional theory. The Mn$_{12}$ molecules are oriented such that the magnetic easy axis is normal to the surface, and the terminating ligands in the Mn$_{12}$ are replaced by thiol groups (-SH) where the H atoms are lost upon adsorption onto the surface. This sulfur-terminated Mn$_{12}$ molecule has a total magnetic moment of 18 $μ_B$ in the ground state, in contrast to 20$μ_B$ for the standard Mn$_{12}$. The Mn$_{12}$ molecular orbitals broaden due to the interaction of the molecule with the gold surface and the broadening is of the order of 0.1 eV. It is an order of magnitude less than the single-electron charging energy of the molecule so the molecule is weakly bonded to the surface. Only electrons with majority spin can be transferred from the surface to the sulfur-terminated Mn$_{12}$ since the gold Fermi level is well above the majority lowest unoccupied molecular orbital (LUMO) but below the minority LUMO. The amount of the charge transfer is calculated to be 1.23 electrons, dominated by the tail in the electronic distribution of the gold surface. A calculation of level shift upon charging provides 0.28 electrons being transferred. The majority of the charge transfer occurs at the S, C, and O atoms close to the surface. The total magnetic moment also changes from 18 $μ_B$ to 20 $μ_B$, due to rearrangements of the magnetic moments on the S and Mn atoms upon adsorption onto the surface. The magnetic anisotropy barrier is computed including spin-orbit interaction self-consistently in density-functional theory. The barrier for the Mn$_{12}$ on the gold surface decreases by 6 K in comparison to that for an isolated Mn$_{12}$ molecule.
description: 9 pages, 9 figures and 3 tables
Interactive Visual Analysis of Patient-Reported Outcomes for Improved Cancer Aftercare
Creators: name: Müller, Juliane
name: Zebralla, Veit
name: Wiegand, Susanne
name: Oeltze-Jafra, Steffen
Publisher: name: The Eurographics Association
Year: 2019
Subjects: Applied computing
Health care information systems
Health informatics

description: The monitoring and planning of cancer aftercare are commonly based on clinical, physiological and caregiver-reported outcome measures. More recently, patient-reported outcome (PRO) measures, capturing social, psychological, and financial aspects, are gaining attention in the course of establishing a patient-centered healthcare system. PROs are acquired during regular aftercare consultations where patients are asked to fill in questionnaires. We present an interactive visual analysis (IVA) approach to investigating PROs. The approach is applied in clinical routine during the aftercare consultation to assess the development of the particular patient, to compare this development to those of similar patients, and to detect trends that may require an adaptation of the aftercare strategy. Furthermore, the approach is employed in clinical research to identify groups of similarly developing patients and risk factors for poor outcomes, as well as to visually compare patient groups. We demonstrate the IVA approach in analyzing PROs of 1025 head and neck cancer patients. In an evaluation with 20 clinicians, we assessed the usefulness and usability of a prototypical implementation.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Applications of Visual Analytics
description: 78
description: 82
description: Juliane Müller, Veit Zebralla, Susanne Wiegand, and Steffen Oeltze-Jafra
description: CCS Concepts: Applied computing --> Health care information systems; Health informatics
d=4+1 gravitating nonabelian solutions with bi-azimuthal symmetry
Creators: name: Radu, Eugen
name: Shnir, Ya.
name: Tchrakian, D. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct static, asymptotically flat solutions of SU(2) Einstein-Yang-Mills theory in 4+1 dimensions, subject to bi-azimuthal symmetry. Both particle-like and black hole solutions are considered for two different sets of boundary conditions in the Yang--Mills sector, corresponding to multisolitons and soliton-antisoliton pairs. For gravitating multi-soliton solutions, we find that their mass per unit charge is lower than the mass of the corresponding unit charge, spherically symmetric soliton.
description: 13 pages, 5 figures; v2: typos corrected, published version
Gender usage of computers in grades four through seven
Creators: name: Marriott, Albert Daniel
Publisher: name: University of British Columbia
Year: 2010

description: The widespread availability of computers has prompted schools to invest in computer hardware and develop courses of instruction. However, the presence of computers and computer courses in schools does not ensure equal access for boys and girls. This study investigated the relationships between gender and computer use and gender and attitudes towards computers. Results indicate a relationship between gender and use outside of school, but not between gender and use in schools. Results also indicate that the relationships between gender and attitudes toward computers are eliminated when other factors are taken into account.
Visual Analytics of Conversational Dynamics
Creators: name: Seebacher, Daniel
name: Fischer, Maximilian T.
name: Sevastjanova, Rita
name: Keim, Daniel A.
name: El-Assady, Mennatallah
Publisher: name: The Eurographics Association
Year: 2019

description: Large-scale interaction networks of human communication are often modeled as complex graph structures, obscuring temporal patterns within individual conversations. To facilitate the understanding of such conversational dynamics, episodes with low or high communication activity as well as breaks in communication need to be detected to enable the identification of temporal interaction patterns. Traditional episode detection approaches are highly dependent on the choice of parameters, such as window-size or binning-resolution. In this paper, we present a novel technique for the identification of relevant episodes in bi-directional interaction sequences from abstract communication networks. We model communication as a continuous density function, allowing for a more robust segmentation into individual episodes and estimation of communication volume. Additionally, we define a tailored feature set to characterize conversational dynamics and enable a user-steered classification of communication behavior. We apply our technique to a real-world corpus of email data from a large European research institution. The results show that our technique allows users to effectively define, identify, and analyze relevant communication episodes.
description: EuroVis Workshop on Visual Analytics (EuroVA)
description: Applications of Visual Analytics
description: 83
description: 87
description: Daniel Seebacher, Maximilian T. Fischer, Rita Sevastjanova, Daniel A. Keim, and Mennatallah El-Assady
Is SUSY Natural?
Creators: name: Dienes, Keith R.
name: Lennek, Michael
name: Sénéchal, David
name: Wasnik, Vaibhav
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Spacetime supersymmetry is widely believed to play an important role in most fundamental theories of physics, and is usually invoked in order to address problems of naturalness. In this paper, we examine the question of whether supersymmetry itself is ``natural'' (i.e., likely to exist as a fundamental component of nature at high energy scales). Our approach to answering this question is based on a statistical examination of the heterotic string landscape, and our conclusion is that supersymmetry is an exceedingly rare phenomenon. We also find that the likelihood of supersymmetry appearing at the string scale is dependent on the gauge symmetries present at the string scale, with certain gauge groups strongly favoring the appearance of N=1 supersymmetry and others not. This article summarizes several recent papers, yet also contains some new results. In particular, one new result is that the heterotic landscape appears to favor either the non-supersymmetric Standard Model or an N=1 SUSY GUT gauge group at the string scale; by contrast, the opposite outcomes (namely the MSSM or a non-supersymmetric GUT) are significantly disfavored.
description: 9 pages, LaTeX, 3 tables. Invited article to appear in the New Journal of Physics, Special Focus Issue "Particle Physics at the TeV Scale"
Interannual to Decadal Predictions of Thermohaline Anomalies and Air-Sea Interaction in the Subpolar North Atlantic and the Nordic Seas
Creators: name: Passos, Leilane
name: Langehaug, Helene R.
name: Årthun, Marius
name: Eldevik, Tor
Publisher: name: Zenodo
Year: 2019

description: The knowledge of the thermohaline variability of the Nordic Seas is important to development of ocean and atmospheric predictability in seasonal to decadal time scales, once these areas modulating the climate variability in northwestern Europe. The main purpose of this project is to investigate air-sea interaction related to the poleward thermohaline propagating anomalies in different versions of the NorCPM and also checking through observations, to verify if the model is capable to communicate the anomalies poleward and how the large-scale atmospheric circulation interacts with the poleward propagating anomalies in the ocean.
Prospects for Simulating a Qudit Based Model of (1+1)d Scalar QED
Creators: name: Gustafson, Erik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present a gauge invariant digitization of $(1+1)$d scalar quantum electrodynamics for an arbitrary spin truncation for qudit-based quantum computers. We provide a construction of the Trotter operator in terms of a universal qudit-gate set. The cost savings of using a qutrit based spin-1 encoding versus a qubit encoding are illustrated. We show that a simple initial state could be simulated on current qutrit based hardware using noisy simulations for two different native gate set.
description: 15 pages, 8 figures
Quaternion-Octonion Analyticity for Abelian and Non-Abelian Gauge Theories of Dyons
Creators: name: Bisht, P. S.
name: Negi, O. P. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Einstein- Schroedinger (ES) non-symmetric theory has been extended to accommodate the Abelian and non-Abelian gauge theories of dyons in terms of the quaternion-octonion metric realization. Corresponding covariant derivatives for complex, quaternion and octonion spaces in internal gauge groups are shown to describe the consistent field equations and generalized Dirac equation of dyons. It is also shown that quaternion and octonion representations extend the so-called unified theory of gravitation and electromagnetism to the Yang-Mill's fields leading to two SU(2) gauge theories of internal spaces due to the presence of electric and magnetic charges on dyons.
ปัจจัยที่ส่งผลต่อความสำเร็จในการควบคุมคุณภาพผลิตภัณฑ์: กรณีศึกษาอุตสาหกรรมวัสดุก่อสร้างในจังหวัดนครศรีธรรมราช
Creators: name: จรรยา  ใจหา
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2552
Subjects: การควบคุมคุณภาพผลิตภัณฑ์ ธุรกิจอุตสาหกรรมวัสดุก่อสร้าง

description: 2, 2, วารสารเทคโนโลยีภาคใต้
Structure and Classification of Superconformal Nets
Creators: name: Carpi, Sebastiano
name: Kawahigashi, Yasuyuki
name: Longo, Roberto
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T40; 46L37; 17B68 (Primary); 81T08; 46L60; 22E67; 81R10 (Secondary)

description: We study the general structure of Fermi conformal nets of von Neumann algebras on the circle, consider a class of topological representations, the general representations, that we characterize as Neveu-Schwarz or Ramond representations, in particular a Jones index can be associated with each of them. We then consider a supersymmetric general representation associated with a Fermi modular net and give a formula involving the Fredholm index of the supercharge operator and the Jones index. We then consider the net associated with the super-Virasoro algebra and discuss its structure. If the central charge c belongs to the discrete series, this net is modular by the work of F. Xu and we get an example where our setting is verified by considering the Ramond irreducible representation with lowest weight c/24. We classify all the irreducible Fermi extensions of any super-Virasoro net in the discrete series, thus providing a classification of all superconformal nets with central charge less than 3/2.
description: 49 pages. Section 8 has been removed. More details concerning the diffeomorphism covariance are given
กระบวนการจัดการสอบ V-NET ที่มีประสิทธิภาพของศูนย์สอบมหาวิทยาลัยเทคโนโลยีราชมงคลศรีวิชัย วิทยาเขตตรัง
Creators: name: เมธาพร หิรัญวงศ์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: กระบวนการ, ศูนย์สอบ

description: 1, 4, วารสารสาระคาม
MPEC 2025-H05 : 2025 GR1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 GR1

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.
Thompsoniella Guimaraes 1977
Creators: name: Wolff, Marta
name: Kosmann, Cecilia
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Thompsoniella

description: Genus Thompsoniella Guimarães, 1977
 Thompsoniella Guimarães, 1977: 54. Type species, Thompsoniella anomala Guimarães (orig. des.). Refs.: Guimarães, 1977: 54 (rev.); Toma & Carvalho, 1995: 139; Kosmann et al., 2013: 78.
description: Published as part of Wolff, Marta & Kosmann, Cecilia, 2016, FAMILIES CALLIPHORIDAE AND MESEMBRINELLIDAE, pp. 856-875 in Zootaxa 4122 (1) on page 870, DOI: 10.11646/zootaxa.4122.1.72, http://zenodo.org/record/263487
A Logic of Reachable Patterns in Linked Data-Structures
Creators: name: Yorsh, Greta
name: Rabinovich, Alexander
name: Sagiv, Mooly
name: Meyer, Antoine
name: Bouajjani, Ahmed
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We define a new decidable logic for expressing and checking invariants of programs that manipulate dynamically-allocated objects via pointers and destructive pointer updates. The main feature of this logic is the ability to limit the neighborhood of a node that is reachable via a regular expression from a designated node. The logic is closed under boolean operations (entailment, negation) and has a finite model property. The key technical result is the proof of decidability. We show how to express precondition, postconditions, and loop invariants for some interesting programs. It is also possible to express properties such as disjointness of data-structures, and low-level heap mutations. Moreover, our logic can express properties of arbitrary data-structures and of an arbitrary number of pointer fields. The latter provides a way to naturally specify postconditions that relate the fields on entry to a procedure to the fields on exit. Therefore, it is possible to use the logic to automatically prove partial correctness of programs performing low-level heap mutations.
การจัดการความรู้ที่มีต่อความสำเร็จในการปฏิบัติงานของผู้ปฏิบัติงานการเงินและบัญชีหน่วยงานย่อยในมหาวิทยาลัยมหาสารคาม
Creators: name: สกุลไทย ป้อมมะรัง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: การจัดการความรู้, ความสำเร็จในการปฏิบัติงาน, ผู้ปฏิบัติงานการเงินและบัญชี

description: 1, 4, วารสารสาระคาม
Testing f(R) gravity with the simulated data of gravitational waves from the Einstein Telescope
Creators: name: Pan, Yu
name: He, Yuan
name: Qi, JingZhao
name: Li, Jin
name: Cao, Shuo
name: Liu, Tonghua
name: Wang, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we analyze the implications of gravitational waves (GWs) as standard sirens on the modified gravity models by using the third-generation gravitational wave detector, i.e., the Einstein Telescope. Two viable models in $f(R)$ theories within the Palatini formalism are considered in our analysis ($f_{1}(\mathcal{R})=\mathcal{R}-\fracβ{\mathcal{R}^{n}}$ and $f_{2}(\mathcal{R})=\mathcal{R}+α\ln{\mathcal{R}}-β$), with the combination of simulated GW data and the latest electromagnetic (EM) observational data (including the recently released Pantheon type Ia supernovae sample, the cosmic chronometer data, and baryon acoustic oscillation distance measurements). Our analysis reveals that the standard sirens GWs, which provide an independent and complementary alternative to current experiments, could effectively eliminate the degeneracies among parameters in the two modified gravity models. In addition, we thoroughly investigate the nature of geometrical dark energy in the modified gravity theories with the assistance of $Om(z)$ and statefinder diagnostic analysis. The present analysis makes it clear-cut that the simplest cosmological constant model is still the most preferred by the current data. However, the combination of future naturally improved GW data most recent EM observations will reveal the consistency or acknowledge the tension between the $Λ$CDM model and modified gravity theories.
description: 10 pages, 11 figures, accepted for publication in ApJ
Evidence for a jet contribution to the optical/infrared light of neutron star X-ray binaries
Creators: name: Russell, D. M.
name: Fender, R. P.
name: Jonker, P. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Optical/near-infrared (optical/NIR; OIR) light from low-mass neutron star X-ray binaries (NSXBs) in outburst is traditionally thought to be thermal emission from the accretion disc. Here we present a comprehensive collection of quasi-simultaneous OIR and X-ray data from 19 low-magnetic field NSXBs, including new observations of three sources: 4U 0614+09, LMC X-2 and GX 349+2. The average radio-OIR spectrum for NSXBs is alpha ~ +0.2 (where L_nu propto nu^alpha) at least at high luminosities when the radio jet is detected. This is comparable to, but slightly more inverted than the alpha ~ 0.0 found for black hole X-ray binaries. The OIR spectra and relations between OIR and X-ray fluxes are compared to those expected if the OIR emission is dominated by thermal emission from an X-ray or viscously heated disc, or synchrotron emission from the inner regions of the jets. We find that thermal emission due to X-ray reprocessing can explain all the data except at high luminosities for some NSXBs, namely the atolls and millisecond X-ray pulsars (MSXPs). Optically thin synchrotron emission from the jets (with an observed OIR spectral index of alpha_thin < 0) dominate the NIR light above L_x ~ 10^36 erg/s and the optical above L_x ~ 10^37 erg/s in these systems. For NSXB Z-sources, the OIR observations can be explained by X-ray reprocessing alone, although synchrotron emission may make a low level contribution to the NIR, and could dominate the OIR in one or two cases.
description: MNRAS accepted, 10 pages, 4 figures