cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sn 2008in - bridging the gap between normal and faint supernovae of type IIP
Creators: name: Roy, Rupak
name: Kumar, Brijesh
name: Benetti, Stefano
name: Pastorello, Andrea
name: Yuan, Fang
name: Brown, Peter J.
name: Immler, Stefan
name: Fatkhullin, Timur A.
name: Moskvitin, Alexander S.
name: Maund, Justyn
name: Akerlof, Carl W.
name: Wheeler, J. Craig
name: Sokolov, Vladimir V.
name: Quimby, Rorbert M.
name: Bufano, Filomena
name: Kumar, Brajesh
name: Misra, Kuntal
name: Pandey, S. B.
name: Elias-Rosa, Nancy
name: Roming, Peter W. A.
name: Sagar, Ram
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present optical photometric and low-resolution spectroscopic observations of the Type II plateau supernova (SN) 2008in, which occurred in the outskirts of the nearly face-on spiral galaxy M 61. Photometric data in the X-rays, ultraviolet and near-infrared bands have been used to characterize this event. The SN field was imaged with the ROTSE-IIIb optical telescope about seven days before the explosion. This allowed us to constrain the epoch of the shock breakout to JD = 2454825.6. The duration of the plateau phase, as derived from the photometric monitoring, was ~ 98 days. The spectra of SN 2008in show a striking resemblance to those of the archetypal low-luminosity IIP SNe 1997D and 1999br. A comparison of ejecta kinematics of SN 2008in with the hydrodynamical simulations of Type IIP SNe by Dessart et al. (2010) indicates that it is a less energetic event (~ 5$\times10^{50}$ erg). However, the light curve indicates that the production of radioactive $^{56}$Ni is significantly higher than that in the low-luminosity SNe. Adopting an interstellar absorption along the SN direction of $A_V$ ~ 0.3 mag and a distance of 13.2 Mpc, we estimated a synthesized Ni mass of ~ 0.015 $M_{\odot}$. Employing semi-analytical formulae (Litvinova & Nadezhin 1985), we derived a pre-SN radius of ~ 126$R_{\odot}$, an explosion energy of ~ 5.4$\times10^{50}$ erg and a total ejected mass of ~ 16.7$M_{\odot}$. The latter indicates that the zero age main-sequence mass of the progenitor did not exceed 20$M_{\odot}$. Considering the above properties of SN 2008in, and its occurrence in a region of sub-solar metallicity ([O/H] ~ 8.44 dex), it is unlikely that fall-back of the ejecta onto a newly formed black hole occurred in SN 2008in. We therefore favor a low-energy explosion scenario of a relatively compact, moderate-mass progenitor star that generates a neutron star.
description: Accepted for publication in the Astrophysical Journal
Data workflow: from raw data to archiving
Creators: name: Ferrachat Sylvaine
Publisher: name: Zenodo
Year: 2019
Subjects: FAIR "data management" "data workflow" "data repositories" "licensing"

description: Presentation about data workflow and FAIR principles given at the C2SM data management workshop (March 7th, 2019).

Target audience: students.

Context / domain science: atmospheric and climate sciences
Are biological systems poised at criticality?
Creators: name: Mora, Thierry
name: Bialek, William
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Many of life's most fascinating phenomena emerge from interactions among many elements--many amino acids determine the structure of a single protein, many genes determine the fate of a cell, many neurons are involved in shaping our thoughts and memories. Physicists have long hoped that these collective behaviors could be described using the ideas and methods of statistical mechanics. In the past few years, new, larger scale experiments have made it possible to construct statistical mechanics models of biological systems directly from real data. We review the surprising successes of this "inverse" approach, using examples form families of proteins, networks of neurons, and flocks of birds. Remarkably, in all these cases the models that emerge from the data are poised at a very special point in their parameter space--a critical point. This suggests there may be some deeper theoretical principle behind the behavior of these diverse systems.
description: 21 pages
"Mark this show" : on dramatic attention in Christopher Marlowe's and William Shakespeare's tragedies
Creators: name: Paris, Jamie
Publisher: name: University of British Columbia
Year: 2015

description: This dissertation will argue that the early modern theatre and the early modern church were both concerned with keeping the attention of their audiences, and that one of the ways that dramatic interest in Christopher Marlowe's and William Shakespeare's plays was generated was by staging acts that can be read as ambiguous, interrupted, failed or parodic confessions, prayers, and sermons. In particular, I will argue that when the characters in Marlowe’s and Shakespeare’s tragedies fail to find solace in acts that model reformed devotional practices, they eventually suffer the strange but dramatically engaging consequences of their tragic passions like despair, hatred, jealousy, fear, and rage. This dissertation, then, will bridge the turn to religion and affect studies as a means of arguing that early modern tragedy was consumed with attracting, and sustaining, the dramatic attention of the audience. While it is not possible to say, with any finality, why tragedies hook an audience's attention, it is possible to suggest how Marlowe's and Shakespeare's tragedies used the passions generated by the failure of model devotional acts as a means of capturing and sustaining the attention of the audience.
Transport Coefficients of the Anderson Model
Creators: name: Costi, T. A.
name: Hewson, A. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The transport coefficients of the Anderson model require knowledge of both the temperature and frequency dependence of the single--particle spectral densities and consequently have proven difficult quantities to calculate. Here we show how these quantities can be calculated via an extension of Wilson's numerical renormalization group method. Accurate results are obtained in all parameter regimes and for the full range of temperatures of interest ranging from the high temperature perturbative regime $T>>T_{K}$, through the cross--over region $T\approx T_{K}$, and into the low temperature strong coupling regime $T<
description: 11 pages, 5 figures. Old paper, submitted here for archival purposes only. Short version of http://de.arxiv.org/abs/cond-mat/9310032
Monte Carlo study of a 3D Compton imaging device with GEANT4
Creators: name: Lenti, M.
name: Veltri, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Medical Physics (physics.med-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In this paper we investigate, with a detailed Monte-Carlo simulation based on Geant4, the novel approach [Nucl. Instrum. Methods A588 (2008) 457] to 3D imaging with photon scattering. A monochromatic and well collimated gamma beam is used to illuminate the object to be imaged and the photons Compton scattered are detected by means of a surrounding germanium strip detector. The impact position and the energy of the photons are measured with high precision and the scattering position along the beam axis is calculated. We study as an application of this technique the case of brain imaging but the results can be applied as well to situations where a lighter object, with localized variations of density, is embedded in a denser container. We report here the attainable sensitivity in the detection of density variations as a function of the beam energy, the depth inside the object and size and density of the inclusions. Using a 600 keV gamma beam, for an inclusion with a density increase of 30% with respect to the sorrounding tissue and thickness along the beam of 5 mm, we obtain at midbrain position a resolution of about 2 mm and a contrast of 12%. In addition the simulation indicates that for the same gamma beam energy a complete brain scan would result in an effective dose of about 1 mSv.
title: GDPR, PIPL & LGPD: Privacy Regulations & Policies Across the Globe
Creators: name: Geistel, Raymond H.
Publisher: name: Old Dominion University Libraries
Year: 2021

description: Several privacy laws around the world are adopting similar regulations to the GPDR; this has effects on privacy policies of companies providing services in across multiple countries & continents. While these regulations share many attributes, their differing requirements can make things difficult for companies regarding said policies. Automation could be a potential solution to both analyze and compare regulations from different nations & international organizations, analyze and monitor privacy policy adherence to said regulations.
Acoustic sensing in mountain permafrost: Designing and testing a measurement assembly
Creators: name: Weber, Samuel
Publisher: name: Zenodo
Year: 2011
Subjects: acoustic emission
measurement assembly
depth
mountain permafrost
rock fracturing
microgelivation

description: Rock fracturing due to ice formation and the formation of ice-bonded fracture zones at depth are hypothesized to be relevant preconditioning factors of rock falls in steep permafrost rock-walls as a response to climate change.

Most knowledge about the processes associated with the ice-induced rock damage stems from theoretical studies or laboratory experiments. The transfer of corresponding insights to outdoor conditions is nontrivial because there are big spatial variations and temporal fluctuations of surface conditions in high mountain environments. The monitoring of acoustic emissions (AE) is a powerful technique to track the evolution of damage. The investigation of rock damage by AE measurements provides insights into the physical processes. This Master’s thesis describes the design of an AE measurement assembly for reliable acquisition of a multi-year time series in steep alpine rockwalls. Because measurements in steep rock slopes are challenging, this study investigates technical options suitable to capture AE signals from different depths while incurring minimal signal loss between the rock and the sensor. The requirements for the measurement assembly are outlined and different generic solutions are designed and presented. To evaluate and refine them, the coupling of the sensor with the measurement assembly as well as the contact between rock and measurement assembly were explored by determination of the wave attenuation. The determination of speed of sound, acoustic impedance, transmission and attenuation coefficients for different material candidates enabled to choose ideal components of the measurement assembly. Based on argumentation and testing outcomes, the final measurement assembly, called AE-rod, is designed. The AE sensor is inserted directly in the borehole whereby a thin metal plate glued on the rock provides a good contact. A hollow rod as casing protect the AE sensor against external influences and the sealing of the space between rod and rock prevents water flow in the hole. Four prototypes of the AE-rod are installed and tested in a field deployment at 3500 m a.s.l. on

Jungfraujoch, Switzerland. The results of first measurements are promising and point to a successful design and construction of the AE-rod.
description: Master's thesis, Faculty of Science, University of Zurich
Multiplication of Qubits in a Doubly Resonant Bichromatic Field
Creators: name: Saiko, A. P.
name: Fedaruk, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Multiplication of spin qubits arises at double resonance in a bichromatic field when the frequency of the radio-frequency (rf) field is close to that of the Rabi oscillation in the microwave field, provided its frequency equals the Larmor frequency of the initial qubit. We show that the operational multiphoton transitions of dressed qubits can be selected by the choice of both the rotating frame and the rf phase. In order to enhance the precision of dressed qubit operations in the strong-field regime, the counter-rotating component of the rf field is taken into account.
description: 10 pages, 4 figures
Nanoscale heat flux between anisotropic uniaxial media
Creators: name: Biehs, Svend-Age
name: Ben-Abdallah, Philippe
name: Rosa, Felipe S. S.
name: Joulain, Karl
name: Greffet, Jean-Jacques
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a theoretical study of near-field heat transfer between two anisotropic materials separated by a small vacuum gap and maintained in a stationary non-equilibrium thermal situation. By combining standard stochastic electrodynamics and the Maxwell-Garnett description for effective media, we show that heat flux can be significantly enhanced by air inclusions. This result is explained by : (a) the presence of extraordinary surface waves that give rise to supplementary channels for heat transfer throughout the gap, (b) an increase in the contribution given by the ordinary surface waves at resonance, (c) and the appearance of frustrated modes over a broad spectral range.
Systematics of parton-medium interaction from RHIC to LHC
Creators: name: Renk, Thorsten
name: Auvinen, Jussi
name: Eskola, Kari J.
name: Heinz, Ulrich
name: Holopainen, Hannu
name: Paatelainen, Risto
name: Shen, Chun
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Despite a wealth of experimental data for high-P_T processes in heavy-ion collisions, discriminating between different models of hard parton-medium interactions has been difficult. A key reason is that the pQCD parton spectrum at RHIC is falling so steeply that distinguishing even a moderate shift in parton energy from complete parton absorption is essentially impossible. In essence, energy loss models are effectively only probed in the vicinity of zero energy loss and, as a result, at RHIC energies only the pathlength dependence of energy loss offers some discriminating power. At LHC however, this is no longer the case: Due to the much flatter shape of the parton p_T spectra originating from 2.76 AGeV collisions, the available data probe much deeper into the model dynamics. A simultaneous fit of the nuclear suppression at both RHIC and LHC energies thus has great potential for discriminating between various models that yield equally good descriptions of RHIC data alone.
description: Talk given at Quark Matter 2011, 22-28 May 2011, Annecy, France
title: Leverage Psychological Factors Associated with Lapses in Cybersecurity in Organizational Management
Creators: name: Holm, Chad
Publisher: name: Old Dominion University Libraries
Year: 2021

description: With computers being a standard part of life now with the evolution of the internet, many aspects of our lives have changed, and new ways of thinking must come. One of the biggest challenges in most cyber security problems is not related to the software or the hardware; it is the people that are using the computers to access the data and communicate with others, where the hackers could simply find a weak entry point that naturally exists and a weak link caused by human hands. The human factor as an “insider threat” will affect unauthorized access, credentials stealing, and computer systems with malware. It is important to adopt user-centered methods and organizational management involved perspective and leverage the human factors as an integrated methodological approach to cultivate a better cyber-security culture. The centerpiece of the solutions comes down to the investigation of the rationale and psychological factors that why the people make these choices, how the user feels with the added security involved, and why people choose not to follow these guidelines? Even though in most cases, the added cyber hygiene practices required for many of these computers’ users are simple and easy to understand. However, this failure occurs at all levels. This paper it will address some of these issues and looks at possible solutions to the problems.
Coupling characterization and noise studies of the Optical Metrology System on-board the LISA Pathfinder Mission
Creators: name: Hechenblaikner, G.
name: Gerndt, R.
name: Johann, U.
name: Luetzow-Wentzky, P.
name: Wand, V.
name: Audley, H.
name: Danzmann, K.
name: Garcia-Marin, A.
name: Heinzel, G.
name: Nofrarias, M.
name: Steier, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: In this article we describe the first investigations of the complete engineering model of the Optical Metrology System (OMS), a key subsystem of the LISA Pathfinder science mission to space. The latter itself is a technological precursor mission to LISA, a space-borne gravitational wave detector. At its core, the OMS consists of four heterodyne Mach Zehnder interferometers, a highly stable laser with external modulator and a phase-meter. It is designed to monitor and track the longitudinal motion and attitude of two floating test-masses in the optical reference frame with a (relative) precision in the picometer and nanorad range, respectively. We analyze sensor signal correlations and determine a physical sensor noise limit. The coupling parameters between motional degrees of freedom and interferometer signals are analytically derived and compared to measurements. We also measure adverse cross-coupling effects originating from system imperfections and limitations and describe algorithmic mitigation techniques to overcome some of them. Their impact on system performance is analyzed in the context of the Pathfinder mission.
description: 34 pages double-spaced 5 figures
Between care and control : the uses and abuses of humanitarianism in contemporary migration debates
Creators: name: Mead, Tania Sawicki
Publisher: name: University of British Columbia
Year: 2015

description: The coexistence of punitive forms of border control and a commitment to humanitarianism in liberal states – the liberal paradox – has long been a vexed issue in migration theory and policy. Despite the hegemonoic focus on deterring and detaining irregular migrants at the border, states acknowledge their commitment to compassion by resettling refugees and providing financial assistance to humanitarian organizations. This thesis considers how the tensions between these two approaches is enacted in contemporary migration debates in order to better understand how this paradox persists. Specifically, it uses a discourse analysis approach to consider government elite and policymaker responses to two migration crises in 2015; the large scale drownings in the Mediterranean in April, and the stranded boats carrying Rohingya migrants in the Bay of Bengal in May. The thesis asks to what extent is humanitarianism deployed as a tool by states for legitimating border controls? It identifies key rhetorical techniques that elites and policymakers use to defend their commitment to punitive forms of migration control, and demonstrates that ‘humanitarian’ policy solutions to migration crises primarily serve to reinforce states security interests.
Constrained fitting of disentangled binary spectra: application to V615 Per in the open cluster h Persei
Creators: name: Tamajo, E.
name: Pavlovski, K.
name: Southworth, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using the technique of spectral disentangling, it is possible to determine the individual spectra of the components of a multiple star system from composite spectra observed at a range of orbital phases. This method has several advantages: it is unaffected by line blending, does not use template spectra, and returns individual component spectra with very high signal-to-noise ratios. The disentangled spectra of a binary star system are very well suited to spectroscopic analysis but for one problem: the absolute spectral line depths are unknown because this information is not contained in the original spectra (unless there is one taken in eclipse) without making assumptions about the spectral characteristics of the component stars. Here we present a method for obtaining the atmospheric parameters of the component stars by the constrained fitting of synthetic spectra to observed and disentangled spectra. Disentangled spectra are fitted using synthetic spectra and a genetic algorithm in order to determine the effective temperatures, surface gravities and relative light contributions of the two stars in a binary system. The method is demonstrated on synthetic spectra and then applied to the eclipsing binary V615 Per, a member of the young open cluster NGC 869 (h Persei). The method works well for disentangled spectra with signal-to-noise ratios of 100 or more. For V615 Per we find a normal He abundance but an Mg abundance, which indicates bulk metallicity, a factor of two lower than typical for nearby OB stars.
description: Accepted for publication in Astronomy & Astrophysics
title: Protection of Patient Privacy on Mobile Device Machine Learning
Creators: name: Nguyen, Matthew
Publisher: name: Old Dominion University Libraries
Year: 2021

description: An existing StudentLife Study mobile dataset was evaluated and organized to be applied to different machine learning methods. Different variables like user activity, exercise, sleep, study space, social, and stress levels are optimized to train a model that could predict user stress level. The different machine learning methods would test if both patient data privacy and training efficiency can be ensured.
Generalized Geologic Map for Land-Use Planning: Todd County, Kentucky
Creators: name: Beck, E. Glynn
name: Williams, David A.
name: Carey, Daniel I.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 2005

description: Abstract:
This map is not intended to be used for selecting individual sites. Its purpose is to inform land-use planners, government officials, and the public in a general way about geologic bedrock conditions that affect the selection of sites for various purposes. The properties of thick soils may supercede those of the underlying bedrock and should be considered on a site-to-site basis. At any site, it is important to understand the characteristics of both the soils and the underlying rock.
Proceedings 5th International Workshop on Logical Frameworks and Meta-languages: Theory and Practice
Creators: name: Crary, Karl
name: Miculan, Marino
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Type theories, logical frameworks and meta-languages form a common foundation for designing, implementing, and reasoning about formal languages and their semantics. They are central to the design of modern programming languages, certified software, and domain specific logics. More generally, they continue to influence applications in many areas in mathematics, logic and computer science. The Logical Frameworks and Meta-languages: Theory and Practice workshop aims to bring together designers, implementers, and practitioners working on these areas, and in particular about: the automation and implementation of the meta-theory of programming languages and related calculi; the design of proof assistants, automated theorem provers, and formal digital libraries building upon logical framework technology; theoretical and practical issues concerning the encoding of variable binding and fresh name generation, especially the representation of, and reasoning about, datatypes defined from binding signatures; case studies of meta-programming, and the mechanization of the (meta) theory of descriptions of programming languages and other calculi. This volume contains the final and revised versions of the papers presented at LFMTP 2010, which was held on July 14, 2010 in Edinburgh (UK). LFMTP 2010 was part of the Federated Logic Conference (FLoC 2010), and affilated with LICS 2010.
Explosive site percolation with a product rule
Creators: name: Choi, Woosik
name: Yook, Soon-Hyung
name: Kim, Yup
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the site percolation under Achlioptas process (AP) with a product rule in a $2-dimensional$ (2D) square lattice. From the measurement of the cluster size distribution, $P_s$, we find that $P_s$ has a very robust power-law regime followed by a stable hump near the transition threshold. Based on the careful analysis on the $P_s$ distribution, we show that the transition should be discontinuous. The existence of the hysteresis loop in order parameter also verifies that the transition is discontinuous in 2D. Moreover we also show that the transition nature from the product rule is not the same as that from a sum rule in 2D.
Domain Wall Holography for Finite Temperature Scaling Solutions
Creators: name: Perlmutter, Eric
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate a class of near-extremal solutions of Einstein-Maxwell-scalar theory with electric charge and power law scaling, dual to charged IR phases of relativistic field theories at low temperature. These are exact solutions of theories with domain wall vacua; hence, we use nonconformal holography to relate the bulk and boundary theories. We numerically construct a global interpolating solution between the IR charged solutions and the UV domain wall vacua for arbitrary physical choices of Lagrangian parameters. By passing to a conformal frame in which the domain wall metric becomes that of AdS, we uncover a generalized scale invariance of the IR scaling solution, indicating a connection to the physics of Lifshitz fixed points. Finally, guided by effective field theoretic principles and the physics of nonconformal D-branes, we argue for the applicability of domain wall holography even in theories with AdS critical points, namely those theories for which a scalar potential is dominated by a single exponential term over a large range.
A possible Reinterpretation of Einstein's Equations
Creators: name: Bouda, A.
name: Belabbas, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we first review Huei's formulation in which it is shown that the linearized Einstein equations can be written in the same form as the Maxwell equations. We eliminate some imperfections like the scalar potential which is ill linked to the electric-type field, the Lorentz-type force which is obtained with a time independence restriction and the undesired factor 4 which appears in the magnetic-type part. Second, from these results and in the light of a recent work by C.C. Barros, we propose an extension of the equivalence principle and we suggest a new interpretation for Einstein's equations by showing that the electromagnetic Maxwell equations can be derived from a new version of Einstein's ones.
description: 11 pages, no figures
Keeping corporations accountable : the role of empathy
Creators: name: Hunter, Kimberley
Publisher: name: University of British Columbia
Year: 2015

description: This paper is concerned with the potential role of empathy within the corporate entity. Consciously building empathy through an interactive and reciprocal communicative process could carry substantive importance for improving corporate capacity and morality. I argue that empathetic relationships are those in which each party attempts to understand and respect the other’s point of view, creating a platform of reciprocity from which further cooperation can be undertaken (despite dissenting viewpoints). Achieving this is only possible through corporate accountability at multiple levels of operation, to ensure the moral functioning of all the parts within the whole. In nations like Peru, which is particularly vulnerable to conflict between corporate and stakeholder interests, empathy has enormous potential to improve the quality of the engagement throughout the exploration, extraction, and exploitation of its natural resources. This requires interactive two-way dialogue between company and community to help define the needs of the community and inform the values of the company.
From a single-band metal to a high-temperature superconductor via two thermal phase transitions (Supporting Material)
Creators: name: He, Rui-Hua
name: Hashimoto, M.
name: Karapetyan, H.
name: Koralek, J. D.
name: Hinton, J. P.
name: Testaud, J. P.
name: Nathan, V.
name: Yoshida, Y.
name: Yao, Hong
name: Tanaka, K.
name: Meevasana, W.
name: Moore, R. G.
name: Lu, D. H.
name: Mo, S. -K.
name: Ishikado, M.
name: Eisaki, H.
name: Hussain, Z.
name: Devereaux, T. P.
name: Kivelson, S. A.
name: Orenstein, J.
name: Kapitulnik, A.
name: Shen, Z. -X.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this supporting material for the main paper (the preceding submission), we show, in addition to the related information for the experiments, additional discussion that cannot fit in the main paper (due to the space constraint). It includes further discussion about our experimental observations, wider implications of our main findings with various reported candidates for the pseudogap order, and a simple mean-field argument that favors interpretations based on a finite-Q order (density wave) for the pseudogap seen by ARPES (whether "the pseudogap order" is a single order or contains multiple ingredients, is an independent, open issue). We also include a detailed simulation section, in which we model different candidates (various density wave/nematic order) for the pseudogap order in simple forms using a mean-field approach, and discuss their partial success as well as limitations in describing the experimental observations. These simulations are based on a tight-binding model with parameters fitted globally (and reasonably well) to the experimental band dispersions (by tracking the maximum of the energy distribution curve), which could be useful for further theoretical explorations on this issue.
OLIY TA'LIM MUASSASALARIDA AKADEMIK QALAMTASVIR FANINI O'QITISHNI TAKOMILLASHTIRISH USULLARI
Creators: name: Muzaffarova, Sanobar
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqola oliy ta’lim muassasalarida akademik qalamtasvir fanini o‘qitishni takomillashtirish usullarini tahlil etishga bag‘ishlangan. Maqolada, akademik qalamtasvir fanini o‘qitishning zamonaviy va innovatsion usullari, shu jumladan interfaol o‘qitish metodlari, raqamli texnologiyalardan foydalanish, amaliy mashg‘ulotlar va individual yondashuvlar kabi asosiy yondashuvlar ko‘rib chiqilgan. Shuningdek, maqolada san’at va texnologiyaning integratsiyasi, virtual va kengaytirilgan haqiqat texnologiyalarining o‘quv jarayoniga joriy etilishi, talabalarning ijodiy fikrlashini rivojlantirishga qaratilgan takliflar taqdim etilgan. O‘qituvchilarga talabalar bilan samarali ishlashda yordam beradigan metodlar va amaliy tavsiyalar berilgan. Ushbu maqola, akademik qalamtasvir fanining o‘qitilishiga yangicha yondashuvlarni kiritishni xohlovchi pedagoglar va ilmiy tadqiqotchilar uchun foydali bo‘lishi mumkin.
The growth factor of matter perturbations in an f(R) gravity
Creators: name: Fu, Xiangyun
name: Wu, Puxun
name: Yu, Hongwei
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The growth of matter perturbations in the $f(R)$ model proposed by Starobinsky is studied in this paper. Three different parametric forms of the growth index are considered respectively and constraints on the model are obtained at both the $1σ$ and $2σ$ confidence levels, by using the current observational data for the growth factor. It is found, for all the three parametric forms of the growth index examined, that the Starobinsky model is consistent with the observations only at the $2σ$ confidence level.
description: 15 pages, 5 figures
Universality of a family of Random Matrix Ensembles with logarithmic soft-confinement potentials
Creators: name: Choi, Jinmyung
name: Muttalib, K. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recently we introduced a family of $U(N)$ invariant Random Matrix Ensembles which is characterized by a parameter $λ$ describing logarithmic soft-confinement potentials $V(H) \sim [\ln H]^{(1+λ)} \:(λ>0$). We showed that we can study eigenvalue correlations of these "$λ$-ensembles" based on the numerical construction of the corresponding orthogonal polynomials with respect to the weight function $\exp[- (\ln x)^{1+λ}]$. In this work, we expand our previous work and show that: i) the eigenvalue density is given by a power-law of the form $ρ(x) \propto [\ln x]^{λ-1}/x$ and ii) the two-level kernel has an anomalous structure, which is characteristic of the critical ensembles. We further show that the anomalous part, or the so-called "ghost-correlation peak", is controlled by the parameter $λ$; decreasing $λ$ increases the anomaly. We also identify the two-level kernel of the $λ$-ensembles in the semiclassical regime, which can be written in a sinh-kernel form with more general argument that reduces to that of the critical ensembles for $λ=1$. Finally, we discuss the universality of the $λ$-ensembles, which includes Wigner-Dyson universality ($λ\to \infty$ limit), the uncorrelated Poisson-like behavior ($λ\to 0$ limit), and a critical behavior for all the intermediate $λ$ ($0
description: 10 pages, 13 figures
A mesoscopic description of radiative heat transfer at the nanoscale
Creators: name: Biehs, Svend-Age
name: Rousseau, Emmanuel
name: Greffet, Jean-Jacques
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a formulation of the nanoscale radiative heat transfer (RHT) using concepts of mesoscopic physics. We introduce the analog of the Sharvin conductance using the quantum of thermal conductance. The formalism provides a convenient framework to analyse the physics of RHT at the nanoscale. Finally, we propose a RHT experiment in the regime of quantized conductance.
Superradiant scattering of electromagnetic waves emitted from disk around Kerr black holes
Creators: name: Kobayashi, Taichi
name: Tomimatsu, Akira
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study electromagnetic perturbations around a Kerr black hole surrounded by a thin disk on the equatorial plane. Our main purpose is to reveal the black hole superradiance of electromagnetic waves emitted from the disk surface. The outgoing Kerr-Schild field is used to describe the disk emission, and the superradiant scattering is represented by a vacuum wave field which is added to satisfy the ingoing condition on the horizon. The formula to calculate the energy flux on the disk surface is presented, and the energy transport in the disk-black hole system is investigated. Within the low-frequency approximation we find that the energy extracted from the rotating black hole is mainly transported back to the disk, and the energy spectrum of electromagnetic waves observed at infinity is also discussed.
description: 15 pages, 2 figures, accepted for publication in Physical Review D
title: Audience and Expert Perspectives on Second Screens
title: (Transcripts of Co-Design Workshop and Expert Interviews)
titleType: Subtitle
Creators: name: Gorkovenko Katerina
name: Taylor Nick
Publisher: name: University of Dundee
Year: 2019
Subjects: subject: Television
subject: Politics practical
subject: Social Media
subject: Social networks

description: This dataset contains transcripts of co-design workshops and expert interviews carried out as part of a research project exploring how second screens (i.e. devices used while watching television) could be used to support engagement with televised political debates.  We conducted four two-hour workshops with 18 participants in total, where they discussed the issues with political discourse online at large and the opportunities for second screens. The discussions were structured around four open-ended topics: (1) content, including value of the content they were given, what made content appropriate, and how to encourage the sharing of trustworthy information; (2) identity, including what information participants would like to share and to see about others, how an online profile can enable trust and respect, and how anonymity affects discourse; (3) communication, including how a tool could support meaningful political discussion during debates; and (4) relationships, including the relationships between users, how we could increase empathy, and diversity within social networks.  Based on the outcomes of these workshops, we created a series of four design concepts to serve as mediators between the audience and expert perspectives. These were not intended to act as solutions, but rather to encapsulate the key issues within the findings. Simple mock-ups were presented to the experts by the lead researcher with a short descriptive paragraph.   Seven political and media professionals were recruited to give their feedback on the issues and design concepts. Each interview started with an overview of the workshop results, followed by a discussion about each of the design concepts.
Compact ESPI device for isotropic measurements of residual stress
Creators: name: Melamed, Samuel
Publisher: name: University of British Columbia
Year: 2015

description: Residual stresses are self-equilibrating stresses that exist within bodies without any external loads acting on them. Monitoring residual stresses is vital to engineer safe and reliable structures. A reliable means of measuring residual stress is by drilling a small hole in the body and observing the resulting redistribution of the stress using an electronic speckle pattern interferometer (ESPI). Current ESPI systems are not suitable to measure stress on large or immovable structures because they depend on highly coherent laser sources that are bulky, delicate and not suitable for rugged field conditions. Additionally, ESPI is limited to a single direction of measurement. If the measurement axis is misaligned with the principal stress direction accuracy is reduced. This presents a practical challenge when measuring unknown residual stress states in the field. A compact ESPI device providing an isotropic residual stress measurement is presented here. The compactness of the device is possible by a novel optical arrangement that uses a diffraction grating and a miniature laser diode. This optical arrangement can be geometrically tuned to provide high quality measurements even with low coherence laser diodes. Furthermore, the device is constructed with two orthogonal measurement axes to reduce the influence of instrument alignment on measurement accuracy and to improve the overall precision by doubling the quantity of data. Experimentation with a calibrated bend specimen showed that the device has an accuracy ranging 9-12MPa and precision of 13MPa. This integration of ESPI and hole drilling modules into a compact, stand-alone unit is a significant milestone for in-field residual stress measurements.
Incoherent multiple Andreev reflection in an array of SNS junctions
Creators: name: Chtchelkatchev, N. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Last years many interesting effects related to incoherent MAR have been experimentally found, but only few of them were theoretically explained. It was shown, for example, that if the voltage at the edges of a linear array is $V$ then subgarmonic structures in the current -voltage characteristics appear not only at usual for nonstationary Josephson effect positions, $V_n=2Δ/n$, where $n$ is integer, but also at voltages other than $V_n$. A step towards description of electron transport in a dirty array of SNS junctions is done in this letter. It is shown that subgarmonic structures may indeed appear at ``unusual'' voltages.
A note on $(α, β)$-higher derivations and their extensions to modules of quotients
Creators: name: Vas, Lia
name: Papachristou, Charalampos
Publisher: name: arXiv
Year: 2010
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We extend some recent results on the differentiability of torsion theories. In particular, we generalize the concept of $(α, β)$-derivation to $(α, β)$-higher derivation and demonstrate that a filter of a hereditary torsion theory that is invariant for $α$ and $β$ is $(α, β)$-higher derivation invariant. As a consequence, any higher derivation can be extended from a module to its module of quotients. Then, we show that any higher derivation extended to a module of quotients extends also to a module of quotients with respect to a larger torsion theory in such a way that these extensions agree. We also demonstrate these results hold for symmetric filters as well. We finish the paper with answers to two questions posed in [L. Va\s, Extending higher derivations to rings and modules of quotients, International Journal of Algebra, 2 (15) (2008), 711--731]. In particular, we present an example of a non-hereditary torsion theory that is not differential.
description: Proceedings of the International Conference on Ring and Module Theory, Ankara, Turkey, August 2008
Low-energy properties of the Kondo lattice model
Creators: name: Bodensiek, O.
name: Zitko, R.
name: Peters, R.
name: Pruschke, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the zero-temperature properties of the Kondo lattice model within the dynamical mean-field theory. As impurity solver we use the numerical renormalization group. We present results for the paramagnetic case showing the anticipated heavy Fermion physics, including direct evidence for the appearance of a large Fermi surface for antiferromagnetic exchange interaction. Allowing for the formation of a Neel state, we observe at finite doping an antiferromagnetic metal below a critical exchange interaction, which shows a crossover from a local-moment antiferromagnet with a small Fermi surface for weak exchange coupling to a heavy-fermion antiferromagnet with a large Fermi surface for increasing exchange. Including lattice degrees of freedom via an additional Holstein term we observe a significant suppression of the Kondo effect, leading to strongly reduced lowenergy scale. For too large electron-phonon coupling we find a complete collaps of the heavy Fermi liquid and the formation of polarons.
description: 11 pages, 7 figures
Obscene intimacies : postmodern portraiture in documentary film and television
Creators: name: Walsh, Angela
Publisher: name: University of British Columbia
Year: 2015

description: The past several decades have witnessed a steadily increasing output of documentaries which aim to explore the intimate lives of individual subjects. Although there has been no official scholarly study delineating these films as a documentary sub-genre, they have been variously termed portrait or biographical documentaries, and they are a persistent feature of both documentary film production and non-fiction television programming. This project aims to situate these films and television programs within broader cultural shifts that have occurred in the latter half of the twentieth century, including an upsurge in the ubiquity of images, distrust in the photographic medium’s ability to access the real, and dismantling of taste hierarchies. All of these changes fit under the broad paradigm of postmodern theory and culture, a societal condition that continues to evidence itself in the current age. Despite postmodernism’s proclamation that social relationships and individualism have collapsed, contemporary portraiture documentaries still aim to facilitate a sense of connection between viewer and subject. Postmodernism intersects here with what Richard Sennett has called the “intimate society,” which is characterized by a societal impetus toward personal revelation and emotional expression. I posit that portraiture documentaries represent the collision and working through of these two competing cultural features. Following an overview of the scholarship relevant to my research in Chapter One, Chapter Two will discuss two films by the documentary filmmaker Nick Broomfield, Heidi Fleiss: Hollywood Madam (1995) and Aileen: Life and Death of a Serial Killer (2003). Often maligned in both critical and scholarly circles for failing to interrogate ideology in any meaningful way, I argue that his work operates on a reflexive level to suggest that images fail us when attempting to extract the intimate truth of the individual. In Chapter Three I discuss two examples of reality television series that focus on the lives of individuals, Errol Morris’s First Person (IFC, 2000-2001) and Intervention (A&E, 2005 - ), which demonstrate the persistent need to render the subject in visual terms and make the viewer witness to the most intimate and personal aspects of their lives.
Code C# for chaos analysis of relativistic many-body systems with reactions
Creators: name: Grossu, I. V.
name: Besliu, C.
name: Jipa, Al.
name: Stan, E.
name: Esanu, T.
name: Felea, D.
name: Bordeianu, C. C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we present a reactions module for "Chaos Many-Body Engine" (Grossu et al., 2010 [1]). Following our goal of creating a customizable, object oriented code library, the list of all possible reactions, including the corresponding properties (particle types, probability, cross-section, particles lifetime etc.), could be supplied as parameter, using a specific XML input file. Inspired by the Poincare section, we propose also the "Clusterization map", as a new intuitive analysis method of many-body systems. For exemplification, we implemented a numerical toy-model for nuclear relativistic collisions at 4.5 A GeV/c (the SKM200 collaboration). An encouraging agreement with experimental data was obtained for momentum, energy, rapidity, and angular π- distributions.