cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CernVM Online and Cloud Gateway: a uniform interface for CernVM contextualization and deployment
Creators: name: Lestaris, G.
name: Charalampidis, I.
name: Berzano, D.
name: Blomer, J.
name: Buncic, P.
name: Ganis, G.
name: Meusel, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: In a virtualized environment, contextualization is the process of configuring a VM instance for the needs of various deployment use cases. Contextualization in CernVM can be done by passing a handwritten context to the user data field of cloud APIs, when running CernVM on the cloud, or by using CernVM web interface when running the VM locally. CernVM Online is a publicly accessible web interface that unifies these two procedures. A user is able to define, store and share CernVM contexts using CernVM Online and then apply them either in a cloud by using CernVM Cloud Gateway or on a local VM with the single-step pairing mechanism. CernVM Cloud Gateway is a distributed system that provides a single interface to use multiple and different clouds (by location or type, private or public). Cloud gateway has been so far integrated with OpenNebula, CloudStack and EC2 tools interfaces. A user, with access to a number of clouds, can run CernVM cloud agents that will communicate with these clouds using their interfaces, and then use one single interface to deploy and scale CernVM clusters. CernVM clusters are defined in CernVM Online and consist of a set of CernVM instances that are contextualized and can communicate with each other.
description: Conference paper at the 2013 Computing in High Energy Physics (CHEP) Conference, Amsterdam
OneFlorida Certified Database 07/27/2020
Creators: name: Weinbrenner, Donald
name: Hunter, Catherine
name: Kidder, Beth
name: Temple Robinson
name: Harris, Cynthia
name: Jones, Carrie
name: Green, Leon
name: Rogers, Brant
name: Smith, Eric
name: Prabir Mandal
name: Reams, Renee
name: Cavicchia, Philip
name: Jordan, Melissa
name: Burness, Laura
name: Essner, Rebecca
name: Bitterman, Duke
name: Carlson, Todd
name: Haneesh Chandran
name: Assiaidi, Ahmed
name: Hebert-Solares, Michele
name: McCain, Lance
name: Mitchell, Susan
name: Robinson, Patricia
name: Shrivalle, Katelynn
name: Smith, Steven
name: TaWanda Durant
name: Eden, Joni
name: Joyce, Jeffrey
name: McDonnell, Grant
name: O'Neal, Donna
name: Carretta, Henry
name: Martinez, Joel
name: Keiser Moya
name: Paul, Ludmilla
name: Quintana, Carlos
name: Frase, Alison
name: DeLeon, Veronica
name: Dorice Desrouleaux
name: McCafferty, Jennifer
name: Moy, Pedro
name: Perez, Michael
name: Reddy, Raj
name: Maylee Sanchez
name: Salyakina, Daria
name: Senior, Jerome
name: Taylor, Thomas
name: Nadglowski, Joseph
name: Candelario, Jorge L.
name: Mohr, Deanna
name: Ramirez, Gabriela
name: Walker, Kathleen
name: Barfiled, Chris
name: Blair, Cynthia
name: Herman, Kristin
name: Ladle, Devin
name: Moore, Mary
name: Thomas, Richard
name: Watson, Dean
name: Williams, Nancy
name: Baralt, Claire
name: Bell, Debora J
name: Bian, Jiang
name: Bottini, Tina
name: Boyd, Erica L
name: Byrne, Barry J
name: TaJuana L Chisholm
name: Carek, Peter J
name: Cottler, Linda B
name: Deason, Dick
name: DeHoff, Rhonda Marsha
name: Enani, Mahmoud
name: Evans, Christy M
name: Frening, Debbie
name: George, Thomas J
name: Gramig, Lavina L
name: Gutter, Michael S
name: Handberg, Eileen Mary
name: Hogan, William
name: Neeharika Ilavala
name: Janicke, David
name: Jones, Ross
name: Krieger, Janice
name: Lepanto, Rachel L
name: Lipori, Gigi
name: Loiacono, Alex
name: Magoc, Tanja
name: Manini, Lizabeth M
name: Markham, Merry Jennifer
name: Marsik, Matt
name: Shaw, Katie
name: McMichael, Barbara C
name: Tona Mendoza
name: Millay, Tamara Ann
name: Nelson, David R
name: Pepine, Carl J
name: Ranka, Deepa
name: Lylly F Rodriguez
name: Schmidt, Erik
name: Shenkman, Elizabeth Ann
name: Smith, Myra
name: Vogtle, Candice
name: Weaver, Michael
name: White, Sonya
name: Xu, Howard
name: Bassols-Marin, Carrie
name: Bookman, Richard
name: Olveen Carrasquillo
name: Dominguez, Eliana
name: Giobio, Marie
name: Dushyantha Jayaweera
name: Dominguez, Sheela
name: Deepthi Puram
name: Daru Ransford
name: Tsinoremas, Nick
Publisher: name: figshare
Year: 2020
Subjects: subject: 111711 Health Information Systems (incl. Surveillance)
subject: FOS: Health sciences

description: OneFlorida certified database as of 07/27/2020. Contains data from 01/01/2012 through 04/30/2020.
Monotone-light factorisation systems and torsion theories
Creators: name: Everaert, Tomas
name: Gran, Marino
Publisher: name: arXiv
Year: 2014
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18E40, 18A40, 16S90, 16N80, 20K15, 54H11

description: Given a torsion theory (Y,X) in an abelian category C, the reflector I from C to the torsion-free subcategory X induces a reflective factorisation system (E, M) on C. It was shown by A. Carboni, G.M. Kelly, G. Janelidze and R. Paré that (E, M) induces a monotone-light factorisation system (E',M*) by simultaneously stabilising E and localising M, whenever the torsion theory is hereditary and any object in C is a quotient of an object in X. We extend this result to arbitrary normal categories, and improve it also in the abelian case, where the heredity assumption on the torsion theory turns out to be redundant. Several new examples of torsion theories where this result applies are then considered in the categories of abelian groups, groups, topological groups, commutative rings, and crossed modules.
description: 12 pages
(Ir)reversibility in dense granular systems driven by oscillating forces
Creators: name: Moebius, Ronny
name: Heussinger, Claus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use computer simulations to study highly dense systems of granular particles that are driven by oscillating forces. We implement different dissipation mechanisms that are used to extract the injected energy. In particular, the action of a simple local Stokes' drag is compared with non-linear and history-dependent frictional forces that act either between particle pairs or between particles and an external container wall. The Stokes' drag leads to particle motion that is periodic with the driving force, even at high densities around close packing where particles undergo frequent collisions. With the introduction of inter-particle frictional forces this "interacting absorbing state" is destroyed and particles start to diffuse around. By reducing the density of the material we go through another transition to a "non-interacting" absorbing state, where particles independently follow the force-induced oscillations without collisions. In the system with particle-wall frictional interactions this transition has signs of a discontinuous phase transition. It is accompanied by a diverging relaxation time, but not by a vanishing order parameter, which rather jumps to zero at the transition.
description: accepted at Soft Matter
Automatic 3D modeling by combining SBFEM and transfinite element shape functions
Creators: name: Gravenkamp, Hauke
name: Saputra, Albert A.
name: Eisenträger, Sascha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The scaled boundary finite element method (SBFEM) has recently been employed as an efficient means to model three-dimensional structures, in particular when the geometry is provided as a voxel-based image. To this end, an octree decomposition of the computational domain is deployed and each cubic cell is treated as an SBFEM subdomain. The surfaces of each subdomain are discretized in the finite element sense. We improve on this idea by combining the semi-analytical concept of the SBFEM with certain transition elements on the subdomains' surfaces. Thus, we avoid the triangulation of surfaces employed in previous works and consequently reduce the number of surface elements and degrees of freedom. In addition, these discretizations allow coupling elements of arbitrary order such that local p-refinement can be achieved straightforwardly.
Temperature evolution of magnetic flux rope in a failed solar eruption
Creators: name: Song, Hongqiang
name: Zhang, Jie
name: Cheng, Xin
name: Chen, Yao
name: Liu, Rui
name: Wang, Yuming
name: Li, Bo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this presentation, we report for the first time the detailed temperature evolution process of the magnetic flux rope in a failed solar eruption. Occurred on January 05, 2013, the flux rope was impulsively accelerated to a speed of ~ 400 km/s in the first minute, then decelerated and came to a complete stop in two minutes. The failed eruption resulted in a large-size high-lying (~ 100 Mm above the surface) high-temperature "fire ball" sitting in the corona for more than two hours. The time evolution of the thermal structure of the flux rope was revealed through the differential emission measure analysis technique, which produced temperature maps using observations of the Atmospheric Imaging Assembly on board Solar Dynamic Observatory. The average temperature of the flux rope steadily increased from ~ 5 MK to ~ 10 MK during the first nine minutes of the evolution, which was much longer than the rise time (about three minutes) of the associated soft X-ray flare. We suggest that the flux rope be heated by the energy release of the continuing magnetic reconnection, different from the heating of the low-lying flare loops, which is mainly produced by the chromospheric plasma evaporation. The loop arcade overlying the flux rope was pushed up by ~ 10 Mm during the attempted eruption. The pattern of the velocity variation of the loop arcade strongly suggests that the failure of the eruption be caused by the strapping effect of the overlying loop arcade.
description: Accepted by the Astrophysical Journal (14 pages, 4 figures)
Design & Development of the Graphical User Interface for Sindhi Language
Creators: name: Ismaili, Imdad Ali
name: Bhatti, Zeeshan
name: Shah, Azhar Ali
Publisher: name: arXiv
Year: 2014
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This paper describes the design and implementation of a Unicode-based GUISL (Graphical User Interface for Sindhi Language). The idea is to provide a software platform to the people of Sindh as well as Sindhi diasporas living across the globe to make use of computing for basic tasks such as editing, composition, formatting, and printing of documents in Sindhi by using GUISL. The implementation of the GUISL has been done in the Java technology to make the system platform independent. The paper describes several design issues of Sindhi GUI in the context of existing software tools and technologies and explains how mapping and concatenation techniques have been employed to achieve the cursive shape of Sindhi script.
Statistical model building: Background “knowledge” based on inappropriate preselection causes misspecification
Creators: name: Hafermann, Lorena
name: Becher, Heiko
name: Herrmann, Carolin
name: Klein, Nadja
name: Heinze, Georg
name: Rauch, Geraldine
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Background knowledge
subject: Univariable selection
subject: Backward elimination
subject: Variable selection
subject: Regression model
subject: Simulation study
subject: Need for more data sharing
subject: 610 Medizin und Gesundheit

description: Background Statistical model building requires selection of variables for a model depending on the model’s aim. In descriptive and explanatory models, a common recommendation often met in the literature is to include all variables in the model which are assumed or known to be associated with the outcome independent of their identification with data driven selection procedures. An open question is, how reliable this assumed “background knowledge” truly is. In fact, “known” predictors might be findings from preceding studies which may also have employed inappropriate model building strategies. Methods We conducted a simulation study assessing the influence of treating variables as “known predictors” in model building when in fact this knowledge resulting from preceding studies might be insufficient. Within randomly generated preceding study data sets, model building with variable selection was conducted. A variable was subsequently considered as a “known” predictor if a predefined number of preceding studies identified it as relevant. Results Even if several preceding studies identified a variable as a “true” predictor, this classification is often false positive. Moreover, variables not identified might still be truly predictive. This especially holds true if the preceding studies employed inappropriate selection methods such as univariable selection. Conclusions The source of “background knowledge” should be evaluated with care. Knowledge generated on preceding studies can cause misspecification.
Holographic Dual of the Eguchi-Kawai Mechanism
Creators: name: Young, Donovan
name: Zarembo, Konstantin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The holographic dual of N=2*, D=4 supersymmetric Yang-Mills theory has many features common to 5d CFT. We interpret this as a manifestation of Eguchi-Kawai mechanism.
description: 15 pages, 4 figures; v2: references added
Leader-following Consensus of Multi-agent Systems over Finite Fields
Creators: name: Xu, Xiangru
name: Hong, Yiguang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The leader-following consensus problem of multi-agent systems over finite fields ${\mathbb F}_p$ is considered in this paper. Dynamics of each agent is governed by a linear equation over ${\mathbb F}_p$, where a distributed control protocol is utilized by the followers.Sufficient and/or necessary conditions on system matrices and graph weights in ${\mathbb F}_p$ are provided for the followers to track the leader.
Chunk Formation in Partially Repeated Lists - Chaining vs. Chunking
Creators: name: Musfeld, Philipp
name: Dutli, Joscha
name: Oberauer, Klaus
name: Bartsch, Lea Maria
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Chunking
subject: Hebb Effect
subject: Long-term Memory
subject: Repetition Learning
subject: Working Memory

description: This Experiment is a follow-up on our previous series of five Experiments in which we aimed to examine the effect of salience on the learning of partially repeated lists in different structures. Our previous results showed, that lists were only learned when repeated items were integrated coherently in the list, thereby allowing the formation of a chunk. However, salience only had a weak effect on learning, thereby questioning if it is necessary to assume a chunking mechanism, in which people need to be aware of the boundaries of a repeated sequence to integrate it into one familiar chunk, or whether the findings can also be explained by a simple chaining mechanism. The aim of this Experiment is to clarify this. The detailed preregistration is included in the file "preregistration_exp6.pdf", which is registered together with this registration.
Stan Model Objects
Creators: name: Musfeld, Philipp
Publisher: name: OSF
Year: 2023

description: This Component contains the fitted stan model objects from the mixture-models for the project "Data, Materials, and Code for: Grouping in Working Memory Guides Chunk Formation in Long-Term Memory". The files have been separated from the main-project, to reduce the size for downloads. All results can be reproduced without the full model objects by using the extracted required parameters from the model, which are uploaded in the main project. In case you want to reproduce parameter extractions or explore the fitted models, these files can be downloaded from this component. Please consider the size of the component and the single files before downloading.
Muon-spin rotation measurements of the vortex state in Sr$_2$RuO$_4$: type-1.5 superconductivity, vortex clustering and a crossover from a triangular to a square vortex lattice
Creators: name: Ray, S. J.
name: Gibbs, A. S.
name: Bending, S. J.
name: Curran, P. J.
name: Babaev, E.
name: Baines, C.
name: Mackenzie, A. P.
name: Lee, S. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Muon-spin rotation has been used to probe vortex state in Sr$_2$RuO$_4$. At moderate fields and temperatures a lattice of triangular symmetry is observed, crossing over to a lattice of square symmetry with increasing field and temperature. At lower fields it is found that there are large regions of the sample that are completely free from vortices which grow in volume as the temperature falls. Importantly this is accompanied by {\it increasing} vortex density and increasing disorder within the vortex-cluster containing regions. Both effects are expected to result from the strongly temperature-dependent long-range vortex attractive forces arising from the multi-band chiral-order superconductivity.
description: 13 pages, 4 figures
Small mass plunging into a Kerr black hole: Anatomy of the inspiral-merger-ringdown waveforms
Creators: name: Taracchini, Andrea
name: Buonanno, Alessandra
name: Khanna, Gaurav
name: Hughes, Scott A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We numerically solve the Teukolsky equation in the time domain to obtain the gravitational-wave emission of a small mass inspiraling and plunging into the equatorial plane of a Kerr black hole. We account for the dissipation of orbital energy using the Teukolsky frequency-domain gravitational-wave fluxes for circular, equatorial orbits, down to the light-ring. We consider Kerr spins $-0.99 \leq q \leq 0.99$, and compute the inspiral-merger-ringdown (2,2), (2,1), (3,3), (3,2), (4,4), and (5,5) modes. We study the large-spin regime, and find a great simplicity in the merger waveforms, thanks to the extremely circular character of the plunging orbits. We also quantitatively examine the mixing of quasinormal modes during the ringdown, which induces complicated amplitude and frequency modulations in the waveforms. Finally, we explain how the study of small mass-ratio black-hole binaries helps extending effective-one-body models for comparable-mass, spinning black-hole binaries to any mass ratio and spin magnitude.
description: 20 pages, 15 figures
Mobula hypostoma
Creators: name: White, William T
name: Corrigan, Shannon
name: Yang, Lei
name: Henderson, Aaron C
name: Bazinet, Adam L
name: Swofford, David L
name: Naylor, Gavin J P
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Elasmobranchii
Myliobatiformes
Myliobatidae
Mobula
Mobula hypostoma

description: MOBULA HYPOSTOMA (BANCROFT, 1831)
Cephalopterus hypostomus Bancroft, 1831: 134 (Jamaica; holotype not preserved)
Cephaloptera olfersii Müller, 1836: 311 (Brazil; syntypes MNHN A- 9966,? ZMB 31636 [ex ZMB 8923],?ZM 31637)
Cephaloptera massenoidea Hill, 1862: 176 (Jamaica; no types known)
Cephaloptera rochebrunei Vaillant, 1879: 187 (Senegal; MNHN A-9967)
Ceratobatis robertsii Boulenger, 1897: 227 (Jamaica; holotype BMNH 1897.7.1.40)
description: Published as part of White, William T, Corrigan, Shannon, Yang, Lei, Henderson, Aaron C, Bazinet, Adam L, Swofford, David L & Naylor, Gavin J P, 2018, Phylogeny of the manta and devilrays (Chondrichthyes: obulidae), with an updated taxonomic arrangement for the family, pp. 50-75 in Zoological Journal of the Linnean Society 182 (1) on page 57, DOI: 10.1093/zoolinnean/zlx018, http://zenodo.org/record/14812581
Chunk Formation in Partially Repeated Lists
Creators: name: Oberauer, Klaus
name: Dutli, Joscha
name: Musfeld, Philipp
name: Bartsch, Lea Maria
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Cognitive Psychology
subject: Working Memory
subject: Long-Term Memory
subject: Hebb Effect
subject: Repetition Learning

description: This series of Experiments aims to investigate the mechanisms underlying learning from repetition in the Hebb paradigm. In 5 Experiments, we will test how the salience of different repeated list structures can facilitate learning of (complex) partially repeated patterns. The detailed preregistration is included in the file "preregistration_exp1-5.pdf" which is registered together with this registration.
The Size-distribution of Scattered Disk TNOs from that of JFCs between 0.2 and 15km effective radius
Creators: name: Belton, Michael J. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the size-frequency distribution of Jupiter Family comets to determine whether they are primordial accreted objects or collisional fragments. We develop a list of effective radii and their uncertainties for 161 active JFCs and compute the observed size-frequency distribution using a Probability Index technique. The radii range from 0.2 to 15.4 km. This is then corrected for the effects of observational selection using a model published earlier by Meech et al.(2004). We estimate that the total number of active JFCs between 0.2 and 15.4 km is approximately 2300.The active JFC size-frequency distribution, over the range from 0.6 to 10 km where it is best defined, is found to be closer to an exponential distribution in character than a power-law. We then develop a statistical model, based on the assumption of a steady state, for converting the distribution of active JFCs to the SFD of the source population among the TNOs. The model includes the effects of devolatization (that produces a large sub-class of defunct nuclei) and surficial mass-loss. Comparison with available TNO observations shows that to simultaneously attain continuity with the data on objects in the hot TNO population (Fuentes et al,2010), satisfy constraints on the number of TNOs set by the occultation detections of Schlichting et al.(2012), and to remain within upper limits set by the Taiwanese-American Occultation Survey (TAOS; Zhang et al,2013) the total JFC population must contain a large fraction of small defunct nuclei. The effective power-law index of the inferred TNO differential SFD between 1 and 10 km is -4.5 +/- 0.5 indicating a population in this range that is not in fully relaxed collisional equilibrium. We conclude that the cometary nuclei visited by spacecraft and many JFCs are primordial accreted objects relatively unaffected by collisional evolution.
description: 47 pages, 12 Figures, 2 Tables. Accepted by Icarus, December 2013
Generalized Signal Alignment For MIMO Two-Way X Relay Channels
Creators: name: Liu, Kangqi
name: Tao, Meixia
name: Xiang, Zhengzheng
name: Long, Xin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the degrees of freedom (DoF) of MIMO two-way X relay channels. Previous work studied the case $N < 2M$, where $N$ and $M$ denote the number of antennas at the relay and each source, respectively, and showed that the maximum DoF of $2N$ is achievable when $N \leq \lfloor\frac{8M}{5}\rfloor$ by applying signal alignment (SA) for network coding and interference cancelation. This work considers the case $N>2M$ where the performance is limited by the number of antennas at each source node and conventional SA is not feasible. We propose a \textit{generalized signal alignment} (GSA) based transmission scheme. The key is to let the signals to be exchanged between every source node align in a transformed subspace, rather than the direct subspace, at the relay so as to form network-coded signals. This is realized by jointly designing the precoding matrices at all source nodes and the processing matrix at the relay. Moreover, the aligned subspaces are orthogonal to each other. By applying the GSA, we show that the DoF upper bound $4M$ is achievable when $M \leq \lfloor\frac{2N}{5}\rfloor$ ($M$ is even) or $M \leq \lfloor\frac{2N-1}{5}\rfloor$ ($M$ is odd). Numerical results also demonstrate that our proposed transmission scheme is feasible and effective.
description: 6 pages, 6 figures, to appear in IEEE ICC 2014
Forward and Inverse Kinematics Seamless Matching Using Jacobian
Creators: name: Bhatti, Zeeshan
name: Shah, Asadullah
name: Shahidi, Farruh
name: Karbasi, Mostafa
Publisher: name: arXiv
Year: 2014
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: In this paper the problem of matching Forward Kinematics (FK) motion of a 3 Dimensional (3D) joint chain to the Inverse Kinematics (IK) movement and vice versa has been addressed. The problem lies at the heart of animating a 3D character having controller and manipulator based rig for animation within any 3D modeling and animation software. The seamless matching has been achieved through the use of pseudo-inverse of Jacobian Matrix. The Jacobian Matrix is used to determine the rotation values of each joint of character body part such as arms, between the inverse kinematics and forward kinematics motion. Then moving the corresponding kinematic joint system to the desired place, automatically eliminating the jumping or popping effect which would reduce the complexity of the system.
title: Tempo storica e conflitto di valori. Incontro con Giacomo Marramao (Roma, 2 maggio 2007)
Creators: name: Gentili , Dario
Publisher: name: Roma Tre-Press
Year: 2007

description: B@belonline vol. 3 L’eredità di Hannah Arendt

description: B@belonline vol. 3 L’eredità di Hannah Arendt
A comparison of Monte Carlo generators
Creators: name: Golan, Tomasz
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A comparison of GENIE, NEUT, NUANCE, and NuWro Monte Carlo neutrino event generators is presented using a set of four observables: protons multiplicity, total visible energy, most energetic proton momentum, and $π^+$ two-dimensional energy vs cosine distribution.
description: 5 pages, 12 figures, Talk given at NUINT12: Eighth International Workshop on Neutrino-Nucleus Interactions in the Few-GeV Region, October 22-27, 2012, Rio de Janeiro, Brasil
Peculiarities of Open Star Clusters with High Vertical Velocities from the Region of the Sco-Cen OB Association
Creators: name: Bobylev, Vadim V.
name: Bajkova, Anisa T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have studied the kinematics of a unique sample of young open star clusters (OSCs) with high vertical velocities, $15
description: 13 pages, 7 figures, 0 tables
Patchy Accretion Disks in Ultraluminous X-ray Sources
Creators: name: Miller, J. M.
name: Bachetti, M.
name: Barret, D.
name: Harrison, F. A.
name: Fabian, A. C.
name: Webb, N. A
name: Walton, D. J.
name: Rana, V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The X-ray spectra of the most extreme ultra-luminous X-ray sources -- those with L > 1 E+40 erg/s -- remain something of a mystery. Spectral roll-over in the 5-10 keV band was originally detected in in the deepest XMM-Newton observations of the brightest sources; this is confirmed in subsequent NuSTAR spectra. This emission can be modeled via Comptonization, but with low electron temperatures (kT_e ~ 2 keV) and high optical depths (tau ~ 10) that pose numerous difficulties. Moreover, evidence of cooler thermal emission that can be fit with thin disk models persists, even in fits to joint XMM-Newton and NuSTAR observations. Using NGC 1313 X-1 as a test case, we show that a patchy disk with a multiple temperature profile may provide an excellent description of such spectra. In principle, a number of patches within a cool disk might emit over a range of temperatures, but the data only require a two-temperature profile plus standard Comptonization, or three distinct blackbody components. A mechanism such as the photon bubble instability may naturally give rise to a patchy disk profile, and could give rise to super-Eddington luminosities. It is possible, then, that a patchy disk (rather than a disk with a standard single-temperature profile) might be a hallmark of accretion disks close to or above the Eddington limit. We discuss further tests of this picture, and potential implications for sources such as narrow-line Seyfert-1 galaxies (NLSy1s) and other low-mass active galactic nuclei (AGN).
description: Accepted for publication in ApJ Letters
Tunnelling anisotropic magnetoresistance effect of single adatoms on a noncollinear magnetic surface
Creators: name: Caffrey, Nuala M.
name: Schröder, Silke
name: Ferriani, Paolo
name: Heinze, Stefan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The tunnelling anisotropic magnetoresistance (TAMR) effect describes the sensitivity of spin-polarized electron transport to the orientation of the magnetization with respect to the crystallographic axes. As the TAMR effect requires only a single magnetic electrode, in contrast to the tunnelling magnetoresistance effect, it offers an attractive route towards alternative spintronics applications. In this work we consider the TAMR effect at the single-atom limit by investigating the anisotropy of the local density of states in the vacuum above transition-metal adatoms adsorbed on a noncollinear magnetic surface, the monolayer of Mn on W(110). This surface presents a cycloidal spin spiral ground state with an angle of 173$^\circ$ between neighbouring spins and thus allows a quasi-continuous exploration of the angular dependence of the TAMR of adsorbed adatoms using scanning tunnelling microscopy. Using first-principles calculations, we investigate the TAMR of Co, Rh and Ir adatoms on Mn/W(110) and relate our results to magnetization direction dependent changes in the local density of states. The anisotropic effect is found to be enhanced dramatically on the adsorption of heavy transition-metal atoms, with values of up to 50% predicted from our calculations. This effect will be measurable even with a non-magnetic STM tip.
description: 17 pages, 8 figures
Heavy fermion and Kondo lattice behavior in the itinerant ferromagnet CeCrGe3
Creators: name: Das, Debarchan
name: Gruner, T.
name: Pfau, H.
name: Paramanik, U. B.
name: Burkhardt, U.
name: Geibel, C.
name: Hossain, Z.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Physical properties of polycrystalline CeCrGe$_{3}$ and LaCrGe$_{3}$ have been investigated by x-ray absorption spectroscopy, magnetic susceptibility $χ(T)$, isothermal magnetization M(H), electrical resistivity $ρ(T)$, specific heat C($T$) and thermoelectric power S($T$) measurements. These compounds are found to crystallize in the hexagonal perovskite structure (space group \textit{P6$_{3}$/mmc}), as previously reported. The $ρ(T)$, $χ(T)$ and C($T$) data confirm the bulk ferromagnetic ordering of itinerant Cr moments in LaCrGe$_{3}$ and CeCrGe$_{3}$ with $T_{C}$ = 90 K and 70 K respectively. In addition a weak anomaly is also observed near 3 K in the C($T$) data of CeCrGe$_{3}$. The T dependences of $ρ$ and finite values of Sommerfeld coefficient $γ$ obtained from the specific heat measurements confirm that both the compounds are of metallic character. Further, the $T$ dependence of $ρ$ of CeCrGe$_{3}$ reflects a Kondo lattice behavior. An enhanced $γ$ of 130 mJ/mol\,K$^{2}$ together with the Kondo lattice behavior inferred from the $ρ(T)$ establish CeCrGe$_{3}$ as a moderate heavy fermion compound with a quasi-particle mass renormalization factor of $\sim$ 45.
description: 7 pages, 7 figures. Accepted by Journal of Physics: Condensed Matter
Mobula alfredi
Creators: name: White, William T
name: Corrigan, Shannon
name: Yang, Lei
name: Henderson, Aaron C
name: Bazinet, Adam L
name: Swofford, David L
name: Naylor, Gavin J P
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Elasmobranchii
Myliobatiformes
Myliobatidae
Mobula
Mobula alfredi

description: MOBULA ALFREDI (KREFFT, 1868)
Not retained, tissue sampled: Tissue accessions GN15457, GN15458, GN15459 and GN15460, South Africa.
All specimens were nominally identified as M. alfredi.
description: Published as part of White, William T, Corrigan, Shannon, Yang, Lei, Henderson, Aaron C, Bazinet, Adam L, Swofford, David L & Naylor, Gavin J P, 2018, Phylogeny of the manta and devilrays (Chondrichthyes: obulidae), with an updated taxonomic arrangement for the family, pp. 50-75 in Zoological Journal of the Linnean Society 182 (1) on page 69, DOI: 10.1093/zoolinnean/zlx018, http://zenodo.org/record/14812581
Correlation between Polyakov loops oriented in two different directions in SU(N) gauge theory on a two dimensional torus
Creators: name: Kiskis, Joe
name: Narayanan, Rajamani
name: Sigdel, Dibakar
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We consider SU(N) gauge theories on a two dimensional torus with finite area, $A$. Let $T_μ(A)$ denote the Polyakov loop operator in the $μ$ direction. Starting from the lattice gauge theory on the torus, we derive a formula for the continuum limit of $\langle g_1(T_1(A)) g_2(T_2(A)) \rangle$ as a function of the area of the torus where $g_1$ and $g_2$ are class functions. We show that there exists a class function $ξ_0$ for SU(2) such that $\langle ξ_0(T_1(A)) ξ_0(T_2(A))\rangle > 1$ for all finite area of the torus with the limit being unity as the area of the torus goes to infinity. Only the trivial representation contributes to $ξ_0$ as $A\to\infty$ whereas all representations become equally important as $A\to 0$.
description: 14 pages, 2 figures
Two-dimensional phononic-photonic bandgap optomechanical crystal cavity
Creators: name: Safavi-Naeini, Amir H.
name: Hill, Jeff T.
name: Meenehan, Sean
name: Chan, Jasper
name: Groeblacher, Simon
name: Painter, Oskar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present the fabrication and characterization of an artificial crystal structure formed from a thin-film of silicon which has a full phononic bandgap for microwave X-band phonons and a two-dimensional pseudo-bandgap for near-infrared photons. An engineered defect in the crystal structure is used to localize optical and mechanical resonances in the bandgap of the planar crystal. Two-tone optical spectroscopy is used to characterize the cavity system, showing a large vacuum coupling rate of 220kHz between the fundamental optical cavity resonance at 195THz and a co-localized mechanical resonance at 9.3GHz.
description: 4 pages, 4 figures
Optical Spectra of 73 Stripped-Envelope Core-Collapse Supernovae
Creators: name: Modjaz, Maryam
name: Blondin, Stephane
name: Kirshner, Robert P.
name: Matheson, Tom
name: Berlind, Perry
name: Bianco, Federica B.
name: Calkins, Mike L.
name: Challis, Pete
name: Garnavich, Peter
name: Hicken, Malcolm
name: Jha, Saurabh
name: Liu, Yuqian.
name: Marion, G. Howie
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present 645 optical spectra of 73 supernovae (SNe) of Types IIb, Ib, Ic, and broad-lined Ic. All of these types are attributed to the core collapse of massive stars, with varying degrees of intact H and He envelopes before explosion. The SNe in our sample have a mean redshift = 4200 km/s. Most of these spectra were gathered at the Harvard-Smithsonian Center for Astrophysics (CfA) between 2004 and 2009. For 53 SNe, these are the first published spectra. The data coverage range from mere identification (1-3 spectra) for a few SNe to extensive series of observations (10-30 spectra) that trace the spectral evolution for others, with an average of 9 spectra per SN. For 44 SNe of the 73 SNe presented here, we have well-determined dates of maximum light to determine the phase of each spectrum. Our sample constitutes the most extensive spectral library of stripped-envelope SNe to date. We provide very early coverage (as early as 30 days before V-band max) for photospheric spectra, as well as late-time nebular coverage when the innermost regions of the SNe are visible (as late as 2 years after explosion, while for SN1993J, we have data as late as 11.6 years). This data set has homogeneous observations and reductions that allow us to study the spectroscopic diversity of these classes of stripped SNe and to compare these to SNe associated with gamma-ray bursts. We undertake these matters in follow-up papers.
description: Published by the Astronomical Journal in May 2015. All spectra are publicly available at the CfA SN archive: http://www.cfa.harvard.edu/supernova/SNarchive.html . A companion paper on constructing SNID templates based on these spectra is by Liu & Modjaz (2014) and the resulting SNID templates are available from the NYU website: http://cosmo.nyu.edu/SNYU/spectra/
An Extended Hückel Study of the Electronic Properties of III-V Compounds and Their Alloys
Creators: name: Ribeiro, Ingrid A.
name: Ribeiro, Fabio J.
name: Martins, A. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work, we performed tight binding calculations of the electronic structure of III-V semiconductors compounds and their alloys based on the Extended Hückel Theory (EHT), where the Hückel parameters for the binary compounds were generated following a simulated annealing procedure. In particular, this article is focused on the dependency between band gap and the applied pressure and also the alloy composition.
description: Article submitted to Solid State Commmunications
A generalization of the Euler's totient function
Creators: name: Tarnauceanu, Marius
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: The main goal of this paper is to provide a group theoretical generalization of the well-known Euler's totient function. This determines an interesting class of finite groups.
Plasmon hybridization in pyramidal metamaterials: a route towards ultra-broadband absorption
Creators: name: Lobet, Michael
name: Lard, Mercy
name: Sarrazin, Michael
name: Deparis, Olivier
name: Henrard, Luc
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Pyramidal metamaterials are currently developed for ultra-broadband absorbers. They consist of periodic arrays of alternating metal/dielectric layers forming truncated square-based pyramids. The metallic layers of increasing lengths play the role of vertically and, to a less extent, laterally coupled plasmonic resonators. Based on detailed numerical simulations, we demonstrate that plasmon hybridization between such resonators helps in achieving ultra-broadband absorption. The dipolar modes of individual resonators are shown to be prominent in the electromagnetic coupling mechanism. Lateral coupling between adjacent pyramids and vertical coupling between alternating layers are proven to be key parameters for tuning of plasmon hybridization. Following optimization, the operational bandwidth of Au/Ge pyramids, i.e. the bandwidth within which absorption is higher than 90%, extends over a 0.2-5.8 micrometers wavelength range, i.e. from UV-visible to mid-infrared, and total absorption (integrated over the operational bandwidth) amounts to 98.0%. The omni-directional and polarization-independent high-absorption properties of the device are verified. Moreover, we show that the choice of the dielectric layer material (Si versus Ge) is not critical for achieving ultra-broadband characteristics, which confers versatility for both design and fabrication. Realistic fabrication scenarios are briefly discussed. This plasmon hybridization route could be useful in developing photothermal devices, thermal emitters or shielding devices that dissimulate objects from near infrared detectors.
description: 13 pages, 9 figures, accepted for publication in Optics Express
Menchaca, José A., S. I., Diccionario bio-bibliográfico de filósofos, fascículos 2.ª e 3.ª, B. XVI pp.+cols. 333-1006 (175x249 mmm.). Publicaciones de la Universidad de Deusto. Bllbau 1969
Creators: name: Lopes, António Da Costa
Publisher: name: Theologica
Year: 1971

description: Theologica, v. 6 n. 3 (1971)
Covariant phase space, constraints, gauge and the Peierls formula
Creators: name: Khavkine, Igor
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is well known that both the symplectic structure and the Poisson brackets of classical field theory can be constructed directly from the Lagrangian in a covariant way, without passing through the non-covariant canonical Hamiltonian formalism. This is true even in the presence of constraints and gauge symmetries. These constructions go under the names of the covariant phase space formalism and the Peierls bracket. We review both of them, paying more careful attention, than usual, to the precise mathematical hypotheses that they require, illustrating them in examples. Also an extensive historical overview of the development of these constructions is provided. The novel aspect of our presentation is a significant expansion and generalization of an elegant and quite recent argument by Forger & Romero showing the equivalence between the resulting symplectic and Poisson structures without passing through the canonical Hamiltonian formalism as an intermediary. We generalize it to cover theories with constraints and gauge symmetries and formulate precise sufficient conditions under which the argument holds. These conditions include a local condition on the equations of motion that we call hyperbolizability, and some global conditions of cohomological nature. The details of our presentation may shed some light on subtle questions related to the Poisson structure of gauge theories and their quantization.
description: revised and updated material from arXiv:1211.1914; 73 pages; to appear as a review article in IJMPA. v2: fixed: arrows now appear in diagrams
Unidirectionally Coupled Map Lattices with Non-Linear Coupling: Unbinding Transitions and Super-Long Transients
Creators: name: Marschler, Christian
name: Vollmer, Jürgen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Recently, highly resolved experiments and simulations have provided detailed insight into the dynamics of turbulent pipe flow. This has revived the interest to identify mechanisms that generate chaotic transients with super-exponential growth of lifetime as a function of a control parameter, the Reynolds number for pipe flow, and with transitions from bounded chaotic patches to an invasion of space of irregular motion. Dynamical systems models are unique tools in this respect because they can provide insight into the origin of the very long life time of puffs, and the dynamical mechanism leading to the transition from puffs to slugs in pipe flow. The present paper contributes to this enterprise by introducing a unidirectionally coupled map lattice. It mimics three of the salient features of pipe-flow turbulence: (i) the transition from laminar flow to puffs, (ii) a super-exponential scaling of puff lifetime, and (iii) the transition from puffs to slugs by an unbinding transition in an intermittency scenario. In our model all transitions and scalings are theoretically described from a dynamical systems point of view.
description: 14 pages, see also http://poso.ds.mpg.de/jv or http://www.dcf.ds.mpg.de/index.php?id=733&L=3
Mobula birostris
Creators: name: White, William T
name: Corrigan, Shannon
name: Yang, Lei
name: Henderson, Aaron C
name: Bazinet, Adam L
name: Swofford, David L
name: Naylor, Gavin J P
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Elasmobranchii
Myliobatiformes
Myliobatidae
Mobula
Mobula birostris

description: MOBULA BIROSTRIS (WALBAUM, 1792)
CSIRO H 6446-02 (one clasper only), adult male 461.4 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 18 August 2005; CSIRO H 7791-01 (dorsal fin only), CSIRO H 7791-02 (dorsal fin only), Tanjung Luar landing site, Lombok, Indonesia, 5 October 2009; field code BRU-043, Philippines, 20 April 2007.
Photographed (not retained): male embryo 60.9 cm DW, Pelabuhanratu landing site, West Java, Indonesia; female 493 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 25 March 2002; female 412.6 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 25 April 2004; female 337.6 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 26 April 2004; female 377.4 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 13 July 2004; adult male 340.6 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 9 March 2005; male 289.1 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 11 March 2005; adult male 396 cm DW, Tanjung Luar landing site, Lombok, Indonesia, 13 July 2005; male 270 cm DW (tissue accession GN6791), Cilacap landing site, Central Java, Indonesia, 19 October 2008.
Not retained, tissue sampled: Tissue accessions GN10559, GN10560, GN10561, GN10568, Japan, 26 September 2012.
All specimens were nominally identified as M. birostris.
description: Published as part of White, William T, Corrigan, Shannon, Yang, Lei, Henderson, Aaron C, Bazinet, Adam L, Swofford, David L & Naylor, Gavin J P, 2018, Phylogeny of the manta and devilrays (Chondrichthyes: obulidae), with an updated taxonomic arrangement for the family, pp. 50-75 in Zoological Journal of the Linnean Society 182 (1) on page 69, DOI: 10.1093/zoolinnean/zlx018, http://zenodo.org/record/14812581